From 395afe4e5276b763cc8ea2f841fc16850329b168 Mon Sep 17 00:00:00 2001 From: cxl Date: Mon, 16 Sep 2013 09:42:23 +0000 Subject: [PATCH] plugin/FT_fontsys, plugin/DroidFonts git-svn-id: svn://ultimatepp.org/upp/trunk@6356 f0d560ea-af0d-0410-9eb7-867de7ffcac7 --- uppsrc/Core/Core.h | 4 + uppsrc/plugin/DroidFonts/DroidFonts.brc | 7 + uppsrc/plugin/DroidFonts/DroidFonts.icpp | 17 + uppsrc/plugin/DroidFonts/DroidFonts.upp | 7 + uppsrc/plugin/DroidFonts/DroidSans-Bold.ttf | Bin 0 -> 191032 bytes uppsrc/plugin/DroidFonts/DroidSans.ttf | Bin 0 -> 190044 bytes uppsrc/plugin/DroidFonts/DroidSansMono.ttf | Bin 0 -> 117072 bytes uppsrc/plugin/DroidFonts/DroidSerif-Bold.ttf | Bin 0 -> 184836 bytes .../DroidFonts/DroidSerif-BoldItalic.ttf | Bin 0 -> 189916 bytes .../plugin/DroidFonts/DroidSerif-Italic.ttf | Bin 0 -> 177176 bytes .../plugin/DroidFonts/DroidSerif-Regular.ttf | Bin 0 -> 172532 bytes uppsrc/plugin/DroidFonts/init | 7 + uppsrc/plugin/FT_fontsys/FT_fontsys.cpp | 421 + uppsrc/plugin/FT_fontsys/FT_fontsys.h | 18 + uppsrc/plugin/FT_fontsys/FT_fontsys.upp | 117 + uppsrc/plugin/FT_fontsys/config/ftconfig.h | 570 ++ uppsrc/plugin/FT_fontsys/config/ftheader.h | 793 ++ uppsrc/plugin/FT_fontsys/config/ftmodule.h | 32 + uppsrc/plugin/FT_fontsys/config/ftoption.h | 805 ++ uppsrc/plugin/FT_fontsys/config/ftstdlib.h | 173 + uppsrc/plugin/FT_fontsys/freetype.h | 3921 ++++++++ uppsrc/plugin/FT_fontsys/ft2build.h | 39 + uppsrc/plugin/FT_fontsys/ftadvanc.h | 179 + uppsrc/plugin/FT_fontsys/ftbbox.h | 102 + uppsrc/plugin/FT_fontsys/ftbdf.h | 209 + uppsrc/plugin/FT_fontsys/ftbitmap.h | 227 + uppsrc/plugin/FT_fontsys/ftbzip2.h | 102 + uppsrc/plugin/FT_fontsys/ftcache.h | 1140 +++ uppsrc/plugin/FT_fontsys/ftchapters.h | 104 + uppsrc/plugin/FT_fontsys/ftcid.h | 166 + uppsrc/plugin/FT_fontsys/fterrdef.h | 243 + uppsrc/plugin/FT_fontsys/fterrors.h | 206 + uppsrc/plugin/FT_fontsys/ftgasp.h | 128 + uppsrc/plugin/FT_fontsys/ftglyph.h | 620 ++ uppsrc/plugin/FT_fontsys/ftgxval.h | 358 + uppsrc/plugin/FT_fontsys/ftgzip.h | 102 + uppsrc/plugin/FT_fontsys/ftimage.h | 1313 +++ uppsrc/plugin/FT_fontsys/ftincrem.h | 353 + uppsrc/plugin/FT_fontsys/ftlcdfil.h | 213 + uppsrc/plugin/FT_fontsys/ftlist.h | 277 + uppsrc/plugin/FT_fontsys/ftlzw.h | 99 + uppsrc/plugin/FT_fontsys/ftmac.h | 274 + uppsrc/plugin/FT_fontsys/ftmm.h | 378 + uppsrc/plugin/FT_fontsys/ftmodapi.h | 483 + uppsrc/plugin/FT_fontsys/ftmoderr.h | 156 + uppsrc/plugin/FT_fontsys/ftotval.h | 203 + uppsrc/plugin/FT_fontsys/ftoutln.h | 540 ++ uppsrc/plugin/FT_fontsys/ftpfr.h | 172 + uppsrc/plugin/FT_fontsys/ftrender.h | 238 + uppsrc/plugin/FT_fontsys/ftsizes.h | 159 + uppsrc/plugin/FT_fontsys/ftsnames.h | 200 + uppsrc/plugin/FT_fontsys/ftstroke.h | 741 ++ uppsrc/plugin/FT_fontsys/ftsynth.h | 80 + uppsrc/plugin/FT_fontsys/ftsystem.h | 347 + uppsrc/plugin/FT_fontsys/fttrigon.h | 350 + uppsrc/plugin/FT_fontsys/fttypes.h | 588 ++ uppsrc/plugin/FT_fontsys/ftwinfnt.h | 274 + uppsrc/plugin/FT_fontsys/ftxf86.h | 83 + uppsrc/plugin/FT_fontsys/init | 4 + uppsrc/plugin/FT_fontsys/internal/autohint.h | 231 + uppsrc/plugin/FT_fontsys/internal/ftcalc.h | 179 + uppsrc/plugin/FT_fontsys/internal/ftdebug.h | 250 + uppsrc/plugin/FT_fontsys/internal/ftdriver.h | 422 + uppsrc/plugin/FT_fontsys/internal/ftgloadr.h | 168 + uppsrc/plugin/FT_fontsys/internal/ftmemory.h | 380 + uppsrc/plugin/FT_fontsys/internal/ftobjs.h | 1428 +++ uppsrc/plugin/FT_fontsys/internal/ftpic.h | 67 + uppsrc/plugin/FT_fontsys/internal/ftrfork.h | 196 + uppsrc/plugin/FT_fontsys/internal/ftserv.h | 620 ++ uppsrc/plugin/FT_fontsys/internal/ftstream.h | 539 ++ uppsrc/plugin/FT_fontsys/internal/fttrace.h | 144 + uppsrc/plugin/FT_fontsys/internal/ftvalid.h | 150 + uppsrc/plugin/FT_fontsys/internal/internal.h | 51 + uppsrc/plugin/FT_fontsys/internal/psaux.h | 873 ++ uppsrc/plugin/FT_fontsys/internal/pshints.h | 712 ++ .../FT_fontsys/internal/services/svbdf.h | 77 + .../FT_fontsys/internal/services/svcid.h | 83 + .../FT_fontsys/internal/services/svgldict.h | 82 + .../FT_fontsys/internal/services/svgxval.h | 72 + .../FT_fontsys/internal/services/svkern.h | 51 + .../FT_fontsys/internal/services/svmm.h | 104 + .../FT_fontsys/internal/services/svotval.h | 55 + .../FT_fontsys/internal/services/svpfr.h | 66 + .../FT_fontsys/internal/services/svpostnm.h | 79 + .../FT_fontsys/internal/services/svpscmap.h | 164 + .../FT_fontsys/internal/services/svpsinfo.h | 92 + .../FT_fontsys/internal/services/svsfnt.h | 102 + .../FT_fontsys/internal/services/svttcmap.h | 106 + .../FT_fontsys/internal/services/svtteng.h | 53 + .../FT_fontsys/internal/services/svttglyf.h | 67 + .../FT_fontsys/internal/services/svwinfnt.h | 50 + .../FT_fontsys/internal/services/svxf86nm.h | 55 + uppsrc/plugin/FT_fontsys/internal/sfnt.h | 897 ++ uppsrc/plugin/FT_fontsys/internal/t1types.h | 270 + uppsrc/plugin/FT_fontsys/internal/tttypes.h | 1543 ++++ uppsrc/plugin/FT_fontsys/main.conf | 1 + .../plugin/FT_fontsys/src/autofit/afangles.c | 292 + .../plugin/FT_fontsys/src/autofit/afangles.h | 7 + uppsrc/plugin/FT_fontsys/src/autofit/afcjk.c | 2267 +++++ uppsrc/plugin/FT_fontsys/src/autofit/afcjk.h | 141 + .../plugin/FT_fontsys/src/autofit/afdummy.c | 61 + .../plugin/FT_fontsys/src/autofit/afdummy.h | 42 + .../plugin/FT_fontsys/src/autofit/aferrors.h | 40 + .../plugin/FT_fontsys/src/autofit/afglobal.c | 319 + .../plugin/FT_fontsys/src/autofit/afglobal.h | 71 + .../plugin/FT_fontsys/src/autofit/afhints.c | 1299 +++ .../plugin/FT_fontsys/src/autofit/afhints.h | 467 + .../plugin/FT_fontsys/src/autofit/afindic.c | 155 + .../plugin/FT_fontsys/src/autofit/afindic.h | 40 + .../plugin/FT_fontsys/src/autofit/aflatin.c | 2359 +++++ .../plugin/FT_fontsys/src/autofit/aflatin.h | 211 + .../plugin/FT_fontsys/src/autofit/aflatin2.c | 2374 +++++ .../plugin/FT_fontsys/src/autofit/aflatin2.h | 39 + .../plugin/FT_fontsys/src/autofit/afloader.c | 547 ++ .../plugin/FT_fontsys/src/autofit/afloader.h | 73 + .../plugin/FT_fontsys/src/autofit/afmodule.c | 93 + .../plugin/FT_fontsys/src/autofit/afmodule.h | 37 + uppsrc/plugin/FT_fontsys/src/autofit/afpic.c | 106 + uppsrc/plugin/FT_fontsys/src/autofit/afpic.h | 69 + .../plugin/FT_fontsys/src/autofit/aftypes.h | 370 + uppsrc/plugin/FT_fontsys/src/autofit/afwarp.c | 374 + uppsrc/plugin/FT_fontsys/src/autofit/afwarp.h | 64 + .../plugin/FT_fontsys/src/autofit/autofit.c | 41 + uppsrc/plugin/FT_fontsys/src/base/basepic.c | 83 + uppsrc/plugin/FT_fontsys/src/base/basepic.h | 62 + uppsrc/plugin/FT_fontsys/src/base/ftadvanc.c | 163 + uppsrc/plugin/FT_fontsys/src/base/ftapi.c | 121 + uppsrc/plugin/FT_fontsys/src/base/ftbase.c | 41 + uppsrc/plugin/FT_fontsys/src/base/ftbase.h | 68 + uppsrc/plugin/FT_fontsys/src/base/ftbbox.c | 662 ++ uppsrc/plugin/FT_fontsys/src/base/ftbdf.c | 88 + uppsrc/plugin/FT_fontsys/src/base/ftbitmap.c | 663 ++ uppsrc/plugin/FT_fontsys/src/base/ftcalc.c | 957 ++ uppsrc/plugin/FT_fontsys/src/base/ftcid.c | 117 + uppsrc/plugin/FT_fontsys/src/base/ftdbgmem.c | 997 ++ uppsrc/plugin/FT_fontsys/src/base/ftdebug.c | 246 + uppsrc/plugin/FT_fontsys/src/base/ftfstype.c | 62 + uppsrc/plugin/FT_fontsys/src/base/ftgasp.c | 61 + uppsrc/plugin/FT_fontsys/src/base/ftgloadr.c | 401 + uppsrc/plugin/FT_fontsys/src/base/ftglyph.c | 627 ++ uppsrc/plugin/FT_fontsys/src/base/ftgxval.c | 140 + uppsrc/plugin/FT_fontsys/src/base/ftinit.c | 253 + uppsrc/plugin/FT_fontsys/src/base/ftlcdfil.c | 376 + uppsrc/plugin/FT_fontsys/src/base/ftmac.c | 1057 +++ uppsrc/plugin/FT_fontsys/src/base/ftmm.c | 202 + uppsrc/plugin/FT_fontsys/src/base/ftobjs.c | 4677 ++++++++++ uppsrc/plugin/FT_fontsys/src/base/ftotval.c | 89 + uppsrc/plugin/FT_fontsys/src/base/ftoutln.c | 1129 +++ uppsrc/plugin/FT_fontsys/src/base/ftpatent.c | 286 + uppsrc/plugin/FT_fontsys/src/base/ftpfr.c | 144 + uppsrc/plugin/FT_fontsys/src/base/ftpic.c | 54 + uppsrc/plugin/FT_fontsys/src/base/ftrfork.c | 871 ++ uppsrc/plugin/FT_fontsys/src/base/ftsnames.c | 94 + uppsrc/plugin/FT_fontsys/src/base/ftstream.c | 864 ++ uppsrc/plugin/FT_fontsys/src/base/ftstroke.c | 2415 +++++ uppsrc/plugin/FT_fontsys/src/base/ftsynth.c | 160 + uppsrc/plugin/FT_fontsys/src/base/ftsystem.c | 320 + uppsrc/plugin/FT_fontsys/src/base/fttrigon.c | 546 ++ uppsrc/plugin/FT_fontsys/src/base/fttype1.c | 94 + uppsrc/plugin/FT_fontsys/src/base/ftutil.c | 501 + uppsrc/plugin/FT_fontsys/src/base/ftwinfnt.c | 51 + uppsrc/plugin/FT_fontsys/src/base/ftxf86.c | 40 + uppsrc/plugin/FT_fontsys/src/bdf/bdf.c | 34 + uppsrc/plugin/FT_fontsys/src/bdf/bdf.h | 295 + uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.c | 881 ++ uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.h | 80 + uppsrc/plugin/FT_fontsys/src/bdf/bdferror.h | 44 + uppsrc/plugin/FT_fontsys/src/bdf/bdflib.c | 2543 +++++ uppsrc/plugin/FT_fontsys/src/bzip2/ftbzip2.c | 510 + uppsrc/plugin/FT_fontsys/src/cache/ftcache.c | 31 + uppsrc/plugin/FT_fontsys/src/cache/ftcbasic.c | 855 ++ uppsrc/plugin/FT_fontsys/src/cache/ftccache.c | 626 ++ uppsrc/plugin/FT_fontsys/src/cache/ftccache.h | 359 + uppsrc/plugin/FT_fontsys/src/cache/ftccback.h | 92 + uppsrc/plugin/FT_fontsys/src/cache/ftccmap.c | 438 + uppsrc/plugin/FT_fontsys/src/cache/ftcerror.h | 40 + uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.c | 219 + uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.h | 329 + uppsrc/plugin/FT_fontsys/src/cache/ftcimage.c | 163 + uppsrc/plugin/FT_fontsys/src/cache/ftcimage.h | 107 + uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.c | 743 ++ uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.h | 175 + uppsrc/plugin/FT_fontsys/src/cache/ftcmru.c | 357 + uppsrc/plugin/FT_fontsys/src/cache/ftcmru.h | 246 + uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.c | 421 + uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.h | 103 + uppsrc/plugin/FT_fontsys/src/cff/cff.c | 30 + uppsrc/plugin/FT_fontsys/src/cff/cffcmap.c | 208 + uppsrc/plugin/FT_fontsys/src/cff/cffcmap.h | 67 + uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.c | 671 ++ uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.h | 38 + uppsrc/plugin/FT_fontsys/src/cff/cfferrs.h | 41 + uppsrc/plugin/FT_fontsys/src/cff/cffgload.c | 2977 ++++++ uppsrc/plugin/FT_fontsys/src/cff/cffgload.h | 201 + uppsrc/plugin/FT_fontsys/src/cff/cffload.c | 1661 ++++ uppsrc/plugin/FT_fontsys/src/cff/cffload.h | 83 + uppsrc/plugin/FT_fontsys/src/cff/cffobjs.c | 1056 +++ uppsrc/plugin/FT_fontsys/src/cff/cffobjs.h | 181 + uppsrc/plugin/FT_fontsys/src/cff/cffparse.c | 945 ++ uppsrc/plugin/FT_fontsys/src/cff/cffparse.h | 102 + uppsrc/plugin/FT_fontsys/src/cff/cffpic.c | 101 + uppsrc/plugin/FT_fontsys/src/cff/cffpic.h | 80 + uppsrc/plugin/FT_fontsys/src/cff/cfftoken.h | 97 + uppsrc/plugin/FT_fontsys/src/cff/cfftypes.h | 280 + uppsrc/plugin/FT_fontsys/src/cid/ciderrs.h | 40 + uppsrc/plugin/FT_fontsys/src/cid/cidgload.c | 442 + uppsrc/plugin/FT_fontsys/src/cid/cidgload.h | 51 + uppsrc/plugin/FT_fontsys/src/cid/cidload.c | 672 ++ uppsrc/plugin/FT_fontsys/src/cid/cidload.h | 53 + uppsrc/plugin/FT_fontsys/src/cid/cidobjs.c | 482 + uppsrc/plugin/FT_fontsys/src/cid/cidobjs.h | 154 + uppsrc/plugin/FT_fontsys/src/cid/cidparse.c | 225 + uppsrc/plugin/FT_fontsys/src/cid/cidparse.h | 123 + uppsrc/plugin/FT_fontsys/src/cid/cidriver.c | 240 + uppsrc/plugin/FT_fontsys/src/cid/cidriver.h | 43 + uppsrc/plugin/FT_fontsys/src/cid/cidtoken.h | 112 + uppsrc/plugin/FT_fontsys/src/cid/type1cid.c | 29 + .../plugin/FT_fontsys/src/gxvalid/gxvalid.c | 46 + .../plugin/FT_fontsys/src/gxvalid/gxvalid.h | 107 + .../plugin/FT_fontsys/src/gxvalid/gxvbsln.c | 333 + .../plugin/FT_fontsys/src/gxvalid/gxvcommn.c | 1744 ++++ .../plugin/FT_fontsys/src/gxvalid/gxvcommn.h | 581 ++ .../plugin/FT_fontsys/src/gxvalid/gxverror.h | 51 + .../plugin/FT_fontsys/src/gxvalid/gxvfeat.c | 339 + .../plugin/FT_fontsys/src/gxvalid/gxvfeat.h | 172 + .../plugin/FT_fontsys/src/gxvalid/gxvfgen.c | 482 + .../plugin/FT_fontsys/src/gxvalid/gxvjust.c | 717 ++ .../plugin/FT_fontsys/src/gxvalid/gxvkern.c | 922 ++ .../plugin/FT_fontsys/src/gxvalid/gxvlcar.c | 223 + uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.c | 285 + uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.h | 50 + .../plugin/FT_fontsys/src/gxvalid/gxvmort.c | 296 + .../plugin/FT_fontsys/src/gxvalid/gxvmort.h | 93 + .../plugin/FT_fontsys/src/gxvalid/gxvmort0.c | 151 + .../plugin/FT_fontsys/src/gxvalid/gxvmort1.c | 259 + .../plugin/FT_fontsys/src/gxvalid/gxvmort2.c | 311 + .../plugin/FT_fontsys/src/gxvalid/gxvmort4.c | 125 + .../plugin/FT_fontsys/src/gxvalid/gxvmort5.c | 233 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx.c | 199 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx.h | 67 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx0.c | 111 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx1.c | 277 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx2.c | 325 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx4.c | 55 + .../plugin/FT_fontsys/src/gxvalid/gxvmorx5.c | 225 + .../plugin/FT_fontsys/src/gxvalid/gxvopbd.c | 217 + .../plugin/FT_fontsys/src/gxvalid/gxvprop.c | 329 + .../plugin/FT_fontsys/src/gxvalid/gxvtrak.c | 286 + uppsrc/plugin/FT_fontsys/src/gzip/adler32.c | 48 + uppsrc/plugin/FT_fontsys/src/gzip/ftgzip.c | 688 ++ uppsrc/plugin/FT_fontsys/src/gzip/infblock.c | 387 + uppsrc/plugin/FT_fontsys/src/gzip/infblock.h | 36 + uppsrc/plugin/FT_fontsys/src/gzip/infcodes.c | 250 + uppsrc/plugin/FT_fontsys/src/gzip/infcodes.h | 31 + uppsrc/plugin/FT_fontsys/src/gzip/inffixed.h | 151 + uppsrc/plugin/FT_fontsys/src/gzip/inflate.c | 273 + uppsrc/plugin/FT_fontsys/src/gzip/inftrees.c | 468 + uppsrc/plugin/FT_fontsys/src/gzip/inftrees.h | 63 + uppsrc/plugin/FT_fontsys/src/gzip/infutil.c | 86 + uppsrc/plugin/FT_fontsys/src/gzip/infutil.h | 98 + uppsrc/plugin/FT_fontsys/src/gzip/zconf.h | 284 + uppsrc/plugin/FT_fontsys/src/gzip/zlib.h | 830 ++ uppsrc/plugin/FT_fontsys/src/gzip/zutil.c | 181 + uppsrc/plugin/FT_fontsys/src/gzip/zutil.h | 215 + uppsrc/plugin/FT_fontsys/src/lzw/ftlzw.c | 412 + uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.c | 401 + uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.h | 171 + .../plugin/FT_fontsys/src/otvalid/otvalid.c | 31 + .../plugin/FT_fontsys/src/otvalid/otvalid.h | 78 + .../plugin/FT_fontsys/src/otvalid/otvbase.c | 318 + .../plugin/FT_fontsys/src/otvalid/otvcommn.c | 1086 +++ .../plugin/FT_fontsys/src/otvalid/otvcommn.h | 437 + .../plugin/FT_fontsys/src/otvalid/otverror.h | 43 + .../plugin/FT_fontsys/src/otvalid/otvgdef.c | 224 + .../plugin/FT_fontsys/src/otvalid/otvgpos.c | 1017 ++ .../plugin/FT_fontsys/src/otvalid/otvgpos.h | 36 + .../plugin/FT_fontsys/src/otvalid/otvgsub.c | 585 ++ .../plugin/FT_fontsys/src/otvalid/otvjstf.c | 258 + .../plugin/FT_fontsys/src/otvalid/otvmath.c | 453 + uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.c | 282 + uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.h | 43 + uppsrc/plugin/FT_fontsys/src/pcf/pcf.c | 36 + uppsrc/plugin/FT_fontsys/src/pcf/pcf.h | 237 + uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.c | 718 ++ uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.h | 48 + uppsrc/plugin/FT_fontsys/src/pcf/pcferror.h | 40 + uppsrc/plugin/FT_fontsys/src/pcf/pcfread.c | 1278 +++ uppsrc/plugin/FT_fontsys/src/pcf/pcfread.h | 45 + uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.c | 104 + uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.h | 55 + uppsrc/plugin/FT_fontsys/src/pfr/pfr.c | 29 + uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.c | 166 + uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.h | 46 + uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.c | 214 + uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.h | 43 + uppsrc/plugin/FT_fontsys/src/pfr/pfrerror.h | 40 + uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.c | 844 ++ uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.h | 49 + uppsrc/plugin/FT_fontsys/src/pfr/pfrload.c | 941 ++ uppsrc/plugin/FT_fontsys/src/pfr/pfrload.h | 118 + uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.c | 591 ++ uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.h | 96 + uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.c | 698 ++ uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.h | 36 + uppsrc/plugin/FT_fontsys/src/pfr/pfrtypes.h | 362 + uppsrc/plugin/FT_fontsys/src/psaux/afmparse.c | 964 ++ uppsrc/plugin/FT_fontsys/src/psaux/afmparse.h | 88 + uppsrc/plugin/FT_fontsys/src/psaux/psaux.c | 34 + uppsrc/plugin/FT_fontsys/src/psaux/psauxerr.h | 41 + uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.c | 139 + uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.h | 42 + uppsrc/plugin/FT_fontsys/src/psaux/psconv.c | 472 + uppsrc/plugin/FT_fontsys/src/psaux/psconv.h | 71 + uppsrc/plugin/FT_fontsys/src/psaux/psobjs.c | 1710 ++++ uppsrc/plugin/FT_fontsys/src/psaux/psobjs.h | 212 + uppsrc/plugin/FT_fontsys/src/psaux/rules.mk | 73 + uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.c | 341 + uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.h | 105 + uppsrc/plugin/FT_fontsys/src/psaux/t1decode.c | 1607 ++++ uppsrc/plugin/FT_fontsys/src/psaux/t1decode.h | 64 + .../plugin/FT_fontsys/src/pshinter/pshalgo.c | 2306 +++++ .../plugin/FT_fontsys/src/pshinter/pshalgo.h | 255 + .../plugin/FT_fontsys/src/pshinter/pshglob.c | 750 ++ .../plugin/FT_fontsys/src/pshinter/pshglob.h | 196 + .../plugin/FT_fontsys/src/pshinter/pshinter.c | 29 + .../plugin/FT_fontsys/src/pshinter/pshmod.c | 118 + .../plugin/FT_fontsys/src/pshinter/pshmod.h | 39 + .../plugin/FT_fontsys/src/pshinter/pshnterr.h | 40 + .../plugin/FT_fontsys/src/pshinter/pshpic.c | 69 + .../plugin/FT_fontsys/src/pshinter/pshpic.h | 53 + .../plugin/FT_fontsys/src/pshinter/pshrec.c | 1224 +++ .../plugin/FT_fontsys/src/pshinter/pshrec.h | 176 + .../plugin/FT_fontsys/src/psnames/psmodule.c | 597 ++ .../plugin/FT_fontsys/src/psnames/psmodule.h | 38 + .../plugin/FT_fontsys/src/psnames/psnamerr.h | 41 + .../plugin/FT_fontsys/src/psnames/psnames.c | 26 + uppsrc/plugin/FT_fontsys/src/psnames/pspic.c | 79 + uppsrc/plugin/FT_fontsys/src/psnames/pspic.h | 54 + .../plugin/FT_fontsys/src/psnames/pstables.h | 4095 ++++++++ uppsrc/plugin/FT_fontsys/src/raster/ftmisc.h | 121 + .../plugin/FT_fontsys/src/raster/ftraster.c | 3601 ++++++++ .../plugin/FT_fontsys/src/raster/ftraster.h | 46 + uppsrc/plugin/FT_fontsys/src/raster/ftrend1.c | 299 + uppsrc/plugin/FT_fontsys/src/raster/ftrend1.h | 44 + uppsrc/plugin/FT_fontsys/src/raster/raster.c | 27 + .../plugin/FT_fontsys/src/raster/rasterrs.h | 41 + uppsrc/plugin/FT_fontsys/src/raster/rastpic.c | 90 + uppsrc/plugin/FT_fontsys/src/raster/rastpic.h | 50 + uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.c | 656 ++ uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.h | 38 + uppsrc/plugin/FT_fontsys/src/sfnt/sferrors.h | 41 + uppsrc/plugin/FT_fontsys/src/sfnt/sfnt.c | 42 + uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.c | 102 + uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.h | 88 + uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.c | 1155 +++ uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.h | 54 + uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.c | 250 + uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.h | 46 + uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.c | 3512 +++++++ uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.h | 125 + uppsrc/plugin/FT_fontsys/src/sfnt/ttcmapc.h | 55 + uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.c | 306 + uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.h | 52 + uppsrc/plugin/FT_fontsys/src/sfnt/ttload.c | 1267 +++ uppsrc/plugin/FT_fontsys/src/sfnt/ttload.h | 112 + uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.c | 468 + uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.h | 55 + uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.c | 563 ++ uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.h | 46 + uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.c | 1508 +++ uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.h | 79 + uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit0.c | 1011 ++ uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.c | 2055 +++++ uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.h | 58 + .../plugin/FT_fontsys/src/smooth/ftsmerrs.h | 41 + .../plugin/FT_fontsys/src/smooth/ftsmooth.c | 504 + .../plugin/FT_fontsys/src/smooth/ftsmooth.h | 49 + uppsrc/plugin/FT_fontsys/src/smooth/ftspic.c | 98 + uppsrc/plugin/FT_fontsys/src/smooth/ftspic.h | 50 + uppsrc/plugin/FT_fontsys/src/smooth/smooth.c | 27 + .../plugin/FT_fontsys/src/truetype/truetype.c | 37 + .../plugin/FT_fontsys/src/truetype/ttdriver.c | 487 + .../plugin/FT_fontsys/src/truetype/ttdriver.h | 38 + .../plugin/FT_fontsys/src/truetype/tterrors.h | 40 + .../plugin/FT_fontsys/src/truetype/ttgload.c | 2114 +++++ .../plugin/FT_fontsys/src/truetype/ttgload.h | 61 + .../plugin/FT_fontsys/src/truetype/ttgxvar.c | 1548 ++++ .../plugin/FT_fontsys/src/truetype/ttgxvar.h | 182 + .../plugin/FT_fontsys/src/truetype/ttinterp.c | 8210 +++++++++++++++++ .../plugin/FT_fontsys/src/truetype/ttinterp.h | 319 + .../plugin/FT_fontsys/src/truetype/ttobjs.c | 1279 +++ .../plugin/FT_fontsys/src/truetype/ttobjs.h | 434 + uppsrc/plugin/FT_fontsys/src/truetype/ttpic.c | 81 + uppsrc/plugin/FT_fontsys/src/truetype/ttpic.h | 59 + .../plugin/FT_fontsys/src/truetype/ttpload.c | 599 ++ .../plugin/FT_fontsys/src/truetype/ttpload.h | 75 + uppsrc/plugin/FT_fontsys/src/type1/t1afm.c | 397 + uppsrc/plugin/FT_fontsys/src/type1/t1afm.h | 54 + uppsrc/plugin/FT_fontsys/src/type1/t1driver.c | 331 + uppsrc/plugin/FT_fontsys/src/type1/t1driver.h | 42 + uppsrc/plugin/FT_fontsys/src/type1/t1errors.h | 40 + uppsrc/plugin/FT_fontsys/src/type1/t1gload.c | 515 ++ uppsrc/plugin/FT_fontsys/src/type1/t1gload.h | 53 + uppsrc/plugin/FT_fontsys/src/type1/t1load.c | 2239 +++++ uppsrc/plugin/FT_fontsys/src/type1/t1load.h | 102 + uppsrc/plugin/FT_fontsys/src/type1/t1objs.c | 597 ++ uppsrc/plugin/FT_fontsys/src/type1/t1objs.h | 171 + uppsrc/plugin/FT_fontsys/src/type1/t1parse.c | 486 + uppsrc/plugin/FT_fontsys/src/type1/t1parse.h | 135 + uppsrc/plugin/FT_fontsys/src/type1/t1tokens.h | 143 + uppsrc/plugin/FT_fontsys/src/type1/type1.c | 33 + .../plugin/FT_fontsys/src/type42/t42drivr.c | 246 + .../plugin/FT_fontsys/src/type42/t42drivr.h | 42 + .../plugin/FT_fontsys/src/type42/t42error.h | 40 + uppsrc/plugin/FT_fontsys/src/type42/t42objs.c | 652 ++ uppsrc/plugin/FT_fontsys/src/type42/t42objs.h | 124 + .../plugin/FT_fontsys/src/type42/t42parse.c | 1187 +++ .../plugin/FT_fontsys/src/type42/t42parse.h | 90 + .../plugin/FT_fontsys/src/type42/t42types.h | 56 + uppsrc/plugin/FT_fontsys/src/type42/type42.c | 25 + .../plugin/FT_fontsys/src/winfonts/fnterrs.h | 41 + .../plugin/FT_fontsys/src/winfonts/winfnt.c | 1145 +++ .../plugin/FT_fontsys/src/winfonts/winfnt.h | 171 + uppsrc/plugin/FT_fontsys/t1tables.h | 504 + uppsrc/plugin/FT_fontsys/ttnameid.h | 1247 +++ uppsrc/plugin/FT_fontsys/tttables.h | 763 ++ uppsrc/plugin/FT_fontsys/tttags.h | 107 + uppsrc/plugin/FT_fontsys/ttunpat.h | 59 + 428 files changed, 170526 insertions(+) create mode 100644 uppsrc/plugin/DroidFonts/DroidFonts.brc create mode 100644 uppsrc/plugin/DroidFonts/DroidFonts.icpp create mode 100644 uppsrc/plugin/DroidFonts/DroidFonts.upp create mode 100644 uppsrc/plugin/DroidFonts/DroidSans-Bold.ttf create mode 100644 uppsrc/plugin/DroidFonts/DroidSans.ttf create mode 100644 uppsrc/plugin/DroidFonts/DroidSansMono.ttf create mode 100644 uppsrc/plugin/DroidFonts/DroidSerif-Bold.ttf create mode 100644 uppsrc/plugin/DroidFonts/DroidSerif-BoldItalic.ttf create mode 100644 uppsrc/plugin/DroidFonts/DroidSerif-Italic.ttf create mode 100644 uppsrc/plugin/DroidFonts/DroidSerif-Regular.ttf create mode 100644 uppsrc/plugin/DroidFonts/init create mode 100644 uppsrc/plugin/FT_fontsys/FT_fontsys.cpp create mode 100644 uppsrc/plugin/FT_fontsys/FT_fontsys.h create mode 100644 uppsrc/plugin/FT_fontsys/FT_fontsys.upp create mode 100644 uppsrc/plugin/FT_fontsys/config/ftconfig.h create mode 100644 uppsrc/plugin/FT_fontsys/config/ftheader.h create mode 100644 uppsrc/plugin/FT_fontsys/config/ftmodule.h create mode 100644 uppsrc/plugin/FT_fontsys/config/ftoption.h create mode 100644 uppsrc/plugin/FT_fontsys/config/ftstdlib.h create mode 100644 uppsrc/plugin/FT_fontsys/freetype.h create mode 100644 uppsrc/plugin/FT_fontsys/ft2build.h create mode 100644 uppsrc/plugin/FT_fontsys/ftadvanc.h create mode 100644 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100644 uppsrc/plugin/FT_fontsys/internal/services/svbdf.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svcid.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svgldict.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svgxval.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svkern.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svmm.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svotval.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svpfr.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svpostnm.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svpscmap.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svpsinfo.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svsfnt.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svttcmap.h create mode 100644 uppsrc/plugin/FT_fontsys/internal/services/svtteng.h create 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uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort0.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort1.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort2.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort4.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort5.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx0.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx1.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx2.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx4.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx5.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvopbd.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvprop.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gxvalid/gxvtrak.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/adler32.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/ftgzip.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/infblock.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/infblock.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/infcodes.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/infcodes.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/inffixed.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/inflate.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/inftrees.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/inftrees.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/infutil.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/infutil.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/zconf.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/zlib.h create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/zutil.c create mode 100644 uppsrc/plugin/FT_fontsys/src/gzip/zutil.h create mode 100644 uppsrc/plugin/FT_fontsys/src/lzw/ftlzw.c create mode 100644 uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.c create mode 100644 uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.h create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.h create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvbase.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.h create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otverror.h create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvgdef.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.h create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvgsub.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvjstf.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvmath.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.c create mode 100644 uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcf.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcf.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcferror.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcfread.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcfread.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfr.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrerror.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrload.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrload.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pfr/pfrtypes.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/afmparse.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/afmparse.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psaux.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psauxerr.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psconv.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psconv.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psobjs.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/psobjs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/rules.mk create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/t1decode.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psaux/t1decode.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshinter.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshnterr.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.h create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.c create mode 100644 uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/psmodule.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/psmodule.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/psnamerr.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/psnames.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/pspic.c create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/pspic.h create mode 100644 uppsrc/plugin/FT_fontsys/src/psnames/pstables.h create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/ftmisc.h create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/ftraster.c create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/ftraster.h create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/ftrend1.c create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/ftrend1.h create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/raster.c create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/rasterrs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/rastpic.c create mode 100644 uppsrc/plugin/FT_fontsys/src/raster/rastpic.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sferrors.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfnt.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttcmapc.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttload.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttload.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.c create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.h create mode 100644 uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit0.c create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.c create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.h create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftsmerrs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.c create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.h create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftspic.c create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/ftspic.h create mode 100644 uppsrc/plugin/FT_fontsys/src/smooth/smooth.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/truetype.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/tterrors.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttgload.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttgload.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttpic.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttpic.h create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttpload.c create mode 100644 uppsrc/plugin/FT_fontsys/src/truetype/ttpload.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1afm.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1afm.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1driver.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1driver.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1errors.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1gload.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1gload.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1load.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1load.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1objs.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1objs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1parse.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1parse.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/t1tokens.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type1/type1.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42drivr.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42drivr.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42error.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42objs.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42objs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42parse.c create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42parse.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/t42types.h create mode 100644 uppsrc/plugin/FT_fontsys/src/type42/type42.c create mode 100644 uppsrc/plugin/FT_fontsys/src/winfonts/fnterrs.h create mode 100644 uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.c create mode 100644 uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.h create mode 100644 uppsrc/plugin/FT_fontsys/t1tables.h create mode 100644 uppsrc/plugin/FT_fontsys/ttnameid.h create mode 100644 uppsrc/plugin/FT_fontsys/tttables.h create mode 100644 uppsrc/plugin/FT_fontsys/tttags.h create mode 100644 uppsrc/plugin/FT_fontsys/ttunpat.h diff --git a/uppsrc/Core/Core.h b/uppsrc/Core/Core.h index 34bd9ae0a..f4d0d7e89 100644 --- a/uppsrc/Core/Core.h +++ b/uppsrc/Core/Core.h @@ -390,4 +390,8 @@ using Upp::byte; // Dirty solution to Windows.h typedef byte... #include #endif +#ifdef MAIN_CONF +#include +#endif + #endif //CORE_H diff --git a/uppsrc/plugin/DroidFonts/DroidFonts.brc b/uppsrc/plugin/DroidFonts/DroidFonts.brc new file mode 100644 index 000000000..3c69581c8 --- /dev/null +++ b/uppsrc/plugin/DroidFonts/DroidFonts.brc @@ -0,0 +1,7 @@ +BINARY(Font_DroidSans, "DroidSans.ttf") +BINARY(Font_DroidSans_Bold, "DroidSans-Bold.ttf") +BINARY(Font_DroidSerif, "DroidSerif-Regular.ttf") +BINARY(Font_DroidSerif_Bold, "DroidSerif-Bold.ttf") +BINARY(Font_DroidSerif_Italic, "DroidSerif-Italic.ttf") +BINARY(Font_DroidSerif_BoldItalic, "DroidSerif-BoldItalic.ttf") +BINARY(Font_DroidSansMono, "DroidSansMono.ttf") diff --git a/uppsrc/plugin/DroidFonts/DroidFonts.icpp b/uppsrc/plugin/DroidFonts/DroidFonts.icpp new file mode 100644 index 000000000..5098f4607 --- /dev/null +++ b/uppsrc/plugin/DroidFonts/DroidFonts.icpp @@ -0,0 +1,17 @@ +#include + +#include "DroidFonts.brc" + +NAMESPACE_UPP + +INITBLOCK { + SetMemoryFont(Font::SANSSERIF, Font_DroidSans, Font_DroidSans_length); + SetMemoryFont(Font::SANSSERIF, Font_DroidSans_Bold, Font_DroidSans_Bold_length, FtBOLD); + SetMemoryFont(Font::SERIF, Font_DroidSerif, Font_DroidSerif_length); + SetMemoryFont(Font::SERIF, Font_DroidSerif_Bold, Font_DroidSerif_Bold_length, FtBOLD); + SetMemoryFont(Font::SERIF, Font_DroidSerif_Italic, Font_DroidSerif_Italic_length, FtITALIC); + SetMemoryFont(Font::SERIF, Font_DroidSerif_BoldItalic, Font_DroidSerif_BoldItalic_length, FtBOLD|FtITALIC); + SetMemoryFont(Font::MONOSPACE, Font_DroidSansMono, Font_DroidSansMono_length); +} + +END_UPP_NAMESPACE diff --git a/uppsrc/plugin/DroidFonts/DroidFonts.upp b/uppsrc/plugin/DroidFonts/DroidFonts.upp new file mode 100644 index 000000000..58c53f519 --- /dev/null +++ b/uppsrc/plugin/DroidFonts/DroidFonts.upp @@ -0,0 +1,7 @@ +uses + plugin/FT_fontsys; + +file + DroidFonts.icpp, + DroidFonts.brc; + diff --git a/uppsrc/plugin/DroidFonts/DroidSans-Bold.ttf b/uppsrc/plugin/DroidFonts/DroidSans-Bold.ttf new file mode 100644 index 0000000000000000000000000000000000000000..7ac04b6f0d8a7e8407ec37445a29ad72d6c43fd3 GIT binary patch literal 191032 zcmeFacVLuN)<1sl)28>HKr)jdjSvztq(aC5NeB>nOMpOt&=e4)i4CkMqF`AoDx!;Z zb+8~-?8^F56qR*ZcR^QOR$b9$eO-jf_jB$u6C%3r`~Bnh$M28ty?NU0_nh-N=iK|u zOc-a3d2mu#>9G2SMwTb9XHs2%q-G5pJ7&Ts!GFJw=ZTCx^4hQolZGt1am6Mk{XK~M zaP!0oP19bSb~R(pFk|x7VQ*zzTycV2K*3XRZR=#&g%H8dVL4_8;J513y@&F!Q30qEAZTF!QvGceBZ<-p)ZWr zt}Qxm&a4Udeen%rGZplwEuMA3QuPngy(oV>%7>TCT0Hmf3$nK|DYKL@?b)U0Eno46 zu@C1nDe^bQde$vHf9}$`%Rbt`*i@94W;3E4j)yx>Trkry@Lw!sL;_>4-dT2nu5V5- z)&68X{gByhydLFDOrlf-)G;hh_GHZL{>hqLV|I&{^gMBvFQXLsa<-NE*&3#zrjwPh zsi?Y_Ph>K3W#t>`MdTROJJlG{v-GQcfX(AXU5inZjfx~GN0{_&oQ0>MVWKMQH+aHO z7G~kj(^_`Y%dRvm=AVTb2NfU$Gt`~9gqfu5Wv_}9FWRDG1Y0S;&8||5Sh2Ez%{EwB 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z$m`S~)Bd=W)F~8UBq)W0bs8x|{vk8!Ad{>?r8oi?(V(Hoih_o|KOCFi@f}{?;rTq< z)PfhBrwfR|F|}d_?@$|RaDgu32Jh4*@4^ngj2c{|E4aaNwc`UH&{cHcGF?LeK8~+k z?P}e?{5`1@)^D9|2JKh3g7vH0NWTenWBs1f9dzIG^t`p=`}Sh_wyQ5lzPgX(+o66O z-|I-gDW^1m<=aL77LKnT;`nxJ5XbkfhJxg)M@YVXdW_|JPs2#Q50Ht|PU~qRnnCTI*IUfqkD5j8 z&FUR)@1ouZr&n`9>D2->rl~`PBz;Un4FH>Z=c7 zzOHjQ>TA@8F<;mF2aIMr#b)S=^0A@0J_#u;s5{u literal 0 HcmV?d00001 diff --git a/uppsrc/plugin/DroidFonts/init b/uppsrc/plugin/DroidFonts/init new file mode 100644 index 000000000..3f842691c --- /dev/null +++ b/uppsrc/plugin/DroidFonts/init @@ -0,0 +1,7 @@ +#ifndef _plugin_DroidFonts_icpp_init_stub +#define _plugin_DroidFonts_icpp_init_stub +#include "plugin/FT_fontsys/init" +#define BLITZ_INDEX__ F3e7c51a94c0c592c4447edc4e38a808b +#include "DroidFonts.icpp" +#undef BLITZ_INDEX__ +#endif diff --git a/uppsrc/plugin/FT_fontsys/FT_fontsys.cpp b/uppsrc/plugin/FT_fontsys/FT_fontsys.cpp new file mode 100644 index 000000000..dab0b5e6a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/FT_fontsys.cpp @@ -0,0 +1,421 @@ +#include "FT_fontsys.h" + +#include + +#include + +#define LLOG(x) // DLOG(x) +#define LTIMING(x) // TIMING(x) + +NAMESPACE_UPP + +struct FtFontStyle { + String path; + const byte *data; + int size; + + operator bool() const { return path.GetCount() || data; } + + FtFontStyle() { data = NULL; size = 0; } +}; + +struct FtFontData : Moveable { + FtFontStyle style[4]; +}; + +static Vector& sFontData() +{ + return Single >(); +} + +void sSetFont(int index, const String& path, const byte *data, int size, dword style) +{ + Vector& fd = sFontData(); + FtFontStyle& f = fd.At(index).style[style & 3]; + f.path = path; + f.data = data; + f.size = size; + if(!fd.At(index).style[0]) + sSetFont(index, path, data, size, 0); + if(!fd.At(0).style[0]) + sSetFont(0, path, data, size, 0); + InvalidateFontList(); +} + +void SetFileFont(int face, const char *path, dword style) +{ + sSetFont(face, path, NULL, 0, style); +} + +void SetMemoryFont(int face, const byte *data, int size, dword style) +{ + sSetFont(face, Null, data, size, style); +} + +void GetStdFontSys(String& name, int& height) +{ + name = "xxxx"; +} + +FtFontStyle GetFontStyle(Font font) +{ + Vector& fd = sFontData(); + int face = font.GetFace(); + if(face >= 0 && face < fd.GetCount()) { + const FtFontData& d = fd[face]; + int ii = font.IsBold() + 2 * font.IsItalic(); + if(d.style[ii]) + return d.style[ii]; + if(d.style[0]) + return d.style[0]; + } + return fd.At(0).style[0]; +} + +String GetFontDataSys(Font font) +{ + return LoadFile(font.Fi().path); +} + +static FT_Library sFTlib; + +EXITBLOCK +{ + if(sFTlib) + FT_Done_FreeType(sFTlib); +} + +bool sInitFt(void) +{ + if(sFTlib) + return true; + return FT_Init_FreeType(&sFTlib) == 0; +} + +void FT_ITALIC(FT_GlyphSlot slot) +{ + FT_Matrix transform; + FT_Outline* outline = &slot->outline; + /* only oblique outline glyphs */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + return; + + /* we don't touch the advance width */ + /* For italic, simply apply a shear transform, with an angle */ + /* of about 12 degrees. */ + + transform.xx = 0x10000L; + transform.yx = 0x00000L; + + transform.xy = 0x03000L; + transform.yy = 0x10000L; + + FT_Outline_Transform( outline, &transform ); +} + +void FT_BOLD(FT_GlyphSlot slot) +{ + FT_Face face = slot->face; + FT_Pos amount; + + if(slot->format != FT_GLYPH_FORMAT_OUTLINE) + return; + + /* some reasonable strength */ + amount = FT_MulFix(face->units_per_EM, + face->size->metrics.y_scale ) / 18; + (void)FT_Outline_Embolden( &slot->outline, amount); + + if ( slot->advance.x ) + slot->advance.x += amount; + + if ( slot->advance.y ) + slot->advance.y += amount; + + slot->metrics.width += amount; + slot->metrics.height += amount; + slot->metrics.horiBearingY += amount; + slot->metrics.horiAdvance += amount; + slot->metrics.vertBearingX -= amount / 2; + slot->metrics.vertBearingY += amount; + slot->metrics.vertAdvance += amount; +} + +FT_Face CreateFTFace(Font fnt) +{ + sInitFt(); + + FtFontStyle f = GetFontStyle(fnt); + + if(!f) + return NULL; + + FT_Face face; + if(IsNull(f.path) ? FT_New_Memory_Face(sFTlib, f.data, f.size, 0, &face) + : FT_New_Face(sFTlib, f.path, 0, &face)) + return NULL; + + FT_Set_Pixel_Sizes(face, 0, fnt.GetHeight()); + return face; +} + +#define FONTCACHE 37 + +struct FtFaceEntry { + Font font; + FT_Face face; +}; + +static FtFaceEntry ft_cache[FONTCACHE]; + +void ClearFtFaceCache() +{ + for(int i = 0; i < FONTCACHE; i++) + ft_cache[i].font.Height(-30000); +} + +FT_Face FTFace(Font fnt) +{ + LTIMING("FTFace"); + LLOG("FTFace " << fnt); + ONCELOCK { + ClearFtFaceCache(); + } + FtFaceEntry be; + be = ft_cache[0]; + for(int i = 0; i < FONTCACHE; i++) { + FtFaceEntry e = ft_cache[i]; + if(i) + ft_cache[i] = be; + if(e.font == fnt && e.face) { + if(i) + ft_cache[0] = e; + LLOG("Found " << e.face); + return e.face; + } + be = e; + } + LTIMING("FTFace2"); + if(be.face) { + LLOG("Removing " << be.font << " - " << (void *)be.face); + FT_Done_Face(be.face); + } + be.font = fnt; + be.face = CreateFTFace(be.font); + ft_cache[0] = be; + LLOG("Created " << be.face); + return be.face; +} + +CommonFontInfo GetFontInfoSys(Font font) +{ + sInitFt(); + CommonFontInfo fi; + FT_Face face = FTFace(font); + if(face) { + fi.ascent = face->size->metrics.ascender >> 6; + fi.descent = -(face->size->metrics.descender >> 6); + fi.height = fi.ascent + fi.descent; + fi.lineheight = face->size->metrics.height >> 6; + fi.external = 0; + fi.internal = 0; + fi.overhang = 0; + fi.maxwidth = face->size->metrics.max_advance >> 6; + fi.avewidth = fi.maxwidth; + fi.default_char = '?'; + fi.fixedpitch = font.GetFaceInfo() & Font::FIXEDPITCH; + fi.ttf = true;//strcmp(FT_Get_X11_Font_Format(face), "TrueType") == 0; // ???? + } + else + memset(&fi, 0, sizeof(fi)); + + return fi; +} + +#define FLOOR(x) ((x) & -64) +#define CEIL(x) (((x)+63) & -64) +#define TRUNC(x) ((x) >> 6) +#define ROUND(x) (((x)+32) & -64) + +static bool sLoadGlyph(Font fnt, FT_Face face, int chr) +{ + int glyph_index = FT_Get_Char_Index(face, chr); + if(!glyph_index) + return false; + if(FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT|FT_LOAD_NO_BITMAP)) + return false; + if(fnt.IsBold() && !(face->style_flags & FT_STYLE_FLAG_BOLD)) + FT_BOLD(face->glyph); + if(fnt.IsItalic() && !(face->style_flags & FT_STYLE_FLAG_ITALIC)) + FT_ITALIC(face->glyph); + return true; +} + +GlyphInfo GetGlyphInfoSys(Font font, int chr) +{ + LTIMING("GetGlyphInfoSys"); + GlyphInfo gi; + FT_Face face = FTFace(font); + gi.lspc = gi.rspc = 0; + gi.width = (int16)0x8000; + LLOG("GetGlyphInfoSys " << font << " " << (char)chr << " " << FormatIntHex(chr)); + if(face) { + LTIMING("GetGlyphInfoSys 2"); + if(sLoadGlyph(font, face, chr)) { + FT_Glyph_Metrics& m = face->glyph->metrics; + int left = FLOOR(m.horiBearingX); + int width = TRUNC(CEIL(m.horiBearingX + m.width) - left); + gi.width = TRUNC(ROUND(face->glyph->advance.x)); + gi.lspc = TRUNC(left); + gi.rspc = gi.width - width - gi.lspc; + } + } + return gi; +} + +Vector GetAllFacesSys() +{ + static const char *basic_fonts[] = { + "sans-serif", + "serif", + "sans-serif", + "monospace", + }; + + Vector list; + for(int i = 0; i < __countof(basic_fonts); i++) { + FaceInfo& fi = list.Add(); + fi.name = basic_fonts[i]; + fi.info = (i == 3) ? Font::SCALEABLE|Font::FIXEDPITCH : Font::SCALEABLE; + } + +// const Vector& fd = sFontData(); +// for(int i = __countof(basic_fonts); i < fd.GetCount(); i++) { +// FaceInfo& fi = list.Add(); +// } + + return list; +} + +static inline double ft_dbl(int p) +{ + return double(p) / 64.0; +} + +bool RenderOutline(const FT_Outline& outline, FontGlyphConsumer& path, double xx, double yy) +{ + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + FT_Vector* point; + FT_Vector* limit; + char* tags; + int n; // index of contour in outline + char tag; // current point's state + int first = 0; // index of first point in contour + for(n = 0; n < outline.n_contours; n++) { + int last = outline.contours[n]; + limit = outline.points + last; + v_start = outline.points[first]; + v_last = outline.points[last]; + v_control = v_start; + point = outline.points + first; + tags = outline.tags + first; + tag = FT_CURVE_TAG(tags[0]); + if(tag == FT_CURVE_TAG_CUBIC) return false; + if(tag == FT_CURVE_TAG_CONIC) { + if(FT_CURVE_TAG(outline.tags[last]) == FT_CURVE_TAG_ON) { + // start at last point if it is on the curve + v_start = v_last; + limit--; + } + else { + // if both first and last points are conic, + // start at their middle and record its position + // for closure + v_start.x = (v_start.x + v_last.x) / 2; + v_start.y = (v_start.y + v_last.y) / 2; + v_last = v_start; + } + point--; + tags--; + } + path.Move(Pointf(ft_dbl(v_start.x) + xx, -ft_dbl(v_start.y) + yy)); + while(point < limit) { + point++; + tags++; + + tag = FT_CURVE_TAG(tags[0]); + switch(tag) { + case FT_CURVE_TAG_ON: + path.Line(Pointf(ft_dbl(point->x) + xx, -ft_dbl(point->y) + yy)); + continue; + case FT_CURVE_TAG_CONIC: + v_control.x = point->x; + v_control.y = point->y; + Do_Conic: + if(point < limit) { + FT_Vector vec; + FT_Vector v_middle; + point++; + tags++; + tag = FT_CURVE_TAG(tags[0]); + vec.x = point->x; + vec.y = point->y; + if(tag == FT_CURVE_TAG_ON) { + path.Quadratic(Pointf(ft_dbl(v_control.x) + xx, -ft_dbl(v_control.y) + yy), + Pointf(ft_dbl(vec.x) + xx, -ft_dbl(vec.y) + yy)); + continue; + } + if(tag != FT_CURVE_TAG_CONIC) return false; + v_middle.x = (v_control.x + vec.x) / 2; + v_middle.y = (v_control.y + vec.y) / 2; + path.Quadratic(Pointf(ft_dbl(v_control.x) + xx, -ft_dbl(v_control.y) + yy), + Pointf(ft_dbl(v_middle.x) + xx, -ft_dbl(v_middle.y) + yy)); + v_control = vec; + goto Do_Conic; + } + path.Quadratic(Pointf(ft_dbl(v_control.x) + xx, -ft_dbl(v_control.y) + yy), + Pointf(ft_dbl(v_start.x) + xx, -ft_dbl(v_start.y) + yy)); + goto Close; + + default: + FT_Vector vec1, vec2; + if(point + 1 > limit || FT_CURVE_TAG(tags[1]) != FT_CURVE_TAG_CUBIC) + return false; + vec1.x = point[0].x; + vec1.y = point[0].y; + vec2.x = point[1].x; + vec2.y = point[1].y; + point += 2; + tags += 2; + if(point <= limit) { + FT_Vector vec; + vec.x = point->x; + vec.y = point->y; + path.Cubic(Pointf(ft_dbl(vec1.x) + xx, -ft_dbl(vec1.y) + yy), + Pointf(ft_dbl(vec2.x) + xx, -ft_dbl(vec2.y) + yy), + Pointf(ft_dbl(vec.x) + xx, -ft_dbl(vec.y) + yy)); + continue; + } + path.Cubic(Pointf(ft_dbl(vec1.x) + xx, -ft_dbl(vec1.y) + yy), + Pointf(ft_dbl(vec2.x) + xx, -ft_dbl(vec2.y) + yy), + Pointf(ft_dbl(v_start.x) + xx, -ft_dbl(v_start.y) + yy)); + goto Close; + } + } + Close: + path.Close(); + first = last + 1; + } + return true; +} + +void RenderCharacterSys(FontGlyphConsumer& sw, double x, double y, int ch, Font fnt) +{ + FT_Face face = FTFace(fnt); + if(sLoadGlyph(fnt, face, ch)) + RenderOutline(face->glyph->outline, sw, x, y + fnt.GetAscent()); +} + +END_UPP_NAMESPACE diff --git a/uppsrc/plugin/FT_fontsys/FT_fontsys.h b/uppsrc/plugin/FT_fontsys/FT_fontsys.h new file mode 100644 index 000000000..c7a099eee --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/FT_fontsys.h @@ -0,0 +1,18 @@ +#ifndef _plugin_FT_fontsys_FT_fontsys_h_ +#define _plugin_FT_fontsys_FT_fontsys_h_ + +#include + +NAMESPACE_UPP + +enum FtStyle { + FtBOLD = 1, + FtITALIC = 2 +}; + +void SetFileFont(int face, const char *path, dword style = 0); +void SetMemoryFont(int face, const byte *data, int size, dword style = 0); + +END_UPP_NAMESPACE + +#endif diff --git a/uppsrc/plugin/FT_fontsys/FT_fontsys.upp b/uppsrc/plugin/FT_fontsys/FT_fontsys.upp new file mode 100644 index 000000000..f1f5d240a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/FT_fontsys.upp @@ -0,0 +1,117 @@ +description "FreeType based Draw FONTSYS replacement\377"; + +uses + Draw; + +options + "-D FT2_BUILD_LIBRARY"; + +include + config/ft2build.h; + +file + FT_fontsys.h, + FT_fontsys.cpp, + main.conf, + freetype.h, + ftadvanc.h, + ftbbox.h, + ftbdf.h, + ftbitmap.h, + ftbzip2.h, + ftcache.h, + ftchapters.h, + ftcid.h, + fterrdef.h, + fterrors.h, + ftgasp.h, + ftglyph.h, + ftgxval.h, + ftgzip.h, + ftimage.h, + ftincrem.h, + ftlcdfil.h, + ftlist.h, + ftlzw.h, + ftmac.h, + ftmm.h, + ftmodapi.h, + ftmoderr.h, + ftotval.h, + ftoutln.h, + ftpfr.h, + ftrender.h, + ftsizes.h, + ftsnames.h, + ftstroke.h, + ftsynth.h, + ftsystem.h, + fttrigon.h, + fttypes.h, + ftwinfnt.h, + ftxf86.h, + t1tables.h, + ttnameid.h, + tttables.h, + tttags.h, + ttunpat.h, + config readonly separator, + ft2build.h, + config/ftconfig.h, + config/ftheader.h, + config/ftmodule.h, + config/ftoption.h, + config/ftstdlib.h, + src readonly separator, + src/autofit/autofit.c, + src/base/ftbase.c, + src/base/ftbase.h, + src/base/ftbbox.c, + src/base/ftbdf.c, + src/base/ftbitmap.c, + src/base/ftcid.c, + src/base/ftdebug.c, + src/base/ftfstype.c, + src/base/ftgasp.c, + src/base/ftglyph.c, + src/base/ftgxval.c, + src/base/ftinit.c, + src/base/ftlcdfil.c, + src/base/ftmm.c, + src/base/ftotval.c, + src/base/ftpatent.c, + src/base/ftpfr.c, + src/base/ftstroke.c, + src/base/ftsynth.c, + src/base/ftsystem.c, + src/base/fttype1.c, + src/base/ftwinfnt.c, + src/base/ftxf86.c, + src/bdf/bdf.c, + src/bdf/bdf.h, + src/bzip2/ftbzip2.c, + src/cache/ftcache.c, + src/cff/cff.c, + src/cid/type1cid.c, + src/gxvalid/gxvalid.c, + src/gxvalid/gxvalid.h, + src/gzip/ftgzip.c, + src/lzw/ftlzw.c, + src/otvalid/otvalid.c, + src/otvalid/otvalid.h, + src/pcf/pcf.c, + src/pcf/pcf.h, + src/pfr/pfr.c, + src/psaux/psaux.c, + src/pshinter/pshinter.c, + src/psnames/psnames.c, + src/raster/raster.c, + src/sfnt/sfnt.c, + src/smooth/smooth.c, + src/truetype/truetype.c, + src/type1/type1.c, + src/type42/type42.c, + src/winfonts/winfnt.c, + main.conf, + src/winfonts/winfnt.h; + diff --git a/uppsrc/plugin/FT_fontsys/config/ftconfig.h b/uppsrc/plugin/FT_fontsys/config/ftconfig.h new file mode 100644 index 000000000..5c121c732 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/config/ftconfig.h @@ -0,0 +1,570 @@ +/***************************************************************************/ +/* */ +/* ftconfig.h */ +/* */ +/* ANSI-specific configuration file (specification only). */ +/* */ +/* Copyright 1996-2004, 2006-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This header file contains a number of macro definitions that are used */ + /* by the rest of the engine. Most of the macros here are automatically */ + /* determined at compile time, and you should not need to change it to */ + /* port FreeType, except to compile the library with a non-ANSI */ + /* compiler. */ + /* */ + /* Note however that if some specific modifications are needed, we */ + /* advise you to place a modified copy in your build directory. */ + /* */ + /* The build directory is usually `freetype/builds/', and */ + /* contains system-specific files that are always included first when */ + /* building the library. */ + /* */ + /* This ANSI version should stay in `include/freetype/config'. */ + /* */ + /*************************************************************************/ + +#ifndef __FTCONFIG_H__ +#define __FTCONFIG_H__ + +#include +#include FT_CONFIG_OPTIONS_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ + /* */ + /* These macros can be toggled to suit a specific system. The current */ + /* ones are defaults used to compile FreeType in an ANSI C environment */ + /* (16bit compilers are also supported). Copy this file to your own */ + /* `freetype/builds/' directory, and edit it to port the engine. */ + /* */ + /*************************************************************************/ + + + /* There are systems (like the Texas Instruments 'C54x) where a `char' */ + /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ + /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ + /* is probably unexpected. */ + /* */ + /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ + /* `char' type. */ + +#ifndef FT_CHAR_BIT +#define FT_CHAR_BIT CHAR_BIT +#endif + + + /* The size of an `int' type. */ +#if FT_UINT_MAX == 0xFFFFUL +#define FT_SIZEOF_INT (16 / FT_CHAR_BIT) +#elif FT_UINT_MAX == 0xFFFFFFFFUL +#define FT_SIZEOF_INT (32 / FT_CHAR_BIT) +#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL +#define FT_SIZEOF_INT (64 / FT_CHAR_BIT) +#else +#error "Unsupported size of `int' type!" +#endif + + /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ + /* DM642) is recognized but avoided. */ +#if FT_ULONG_MAX == 0xFFFFFFFFUL +#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) +#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL +#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) +#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL +#define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) +#else +#error "Unsupported size of `long' type!" +#endif + + + /* Preferred alignment of data */ +#define FT_ALIGNMENT 8 + + + /* FT_UNUSED is a macro used to indicate that a given parameter is not */ + /* used -- this is only used to get rid of unpleasant compiler warnings */ +#ifndef FT_UNUSED +#define FT_UNUSED( arg ) ( (arg) = (arg) ) +#endif + + + /*************************************************************************/ + /* */ + /* AUTOMATIC CONFIGURATION MACROS */ + /* */ + /* These macros are computed from the ones defined above. Don't touch */ + /* their definition, unless you know precisely what you are doing. No */ + /* porter should need to mess with them. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Mac support */ + /* */ + /* This is the only necessary change, so it is defined here instead */ + /* providing a new configuration file. */ + /* */ +#if ( defined( __APPLE__ ) && !defined( DARWIN_NO_CARBON ) ) || \ + ( defined( __MWERKS__ ) && defined( macintosh ) ) + /* no Carbon frameworks for 64bit 10.4.x */ + /* AvailabilityMacros.h is available since Mac OS X 10.2, */ + /* so guess the system version by maximum errno before inclusion */ +#include +#ifdef ECANCELED /* defined since 10.2 */ +#include "AvailabilityMacros.h" +#endif +#if defined( __LP64__ ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) +#define DARWIN_NO_CARBON 1 +#else +#define FT_MACINTOSH 1 +#endif + +#elif defined( __SC__ ) || defined( __MRC__ ) + /* Classic MacOS compilers */ +#include "ConditionalMacros.h" +#if TARGET_OS_MAC +#define FT_MACINTOSH 1 +#endif + +#endif + + + /*************************************************************************/ + /* */ + /*

*/ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* FT_Int16 */ + /* */ + /* */ + /* A typedef for a 16bit signed integer type. */ + /* */ + typedef signed short FT_Int16; + + + /*************************************************************************/ + /* */ + /* */ + /* FT_UInt16 */ + /* */ + /* */ + /* A typedef for a 16bit unsigned integer type. */ + /* */ + typedef unsigned short FT_UInt16; + + /* */ + + + /* this #if 0 ... #endif clause is for documentation purposes */ +#if 0 + + /*************************************************************************/ + /* */ + /* */ + /* FT_Int32 */ + /* */ + /* */ + /* A typedef for a 32bit signed integer type. The size depends on */ + /* the configuration. */ + /* */ + typedef signed XXX FT_Int32; + + + /*************************************************************************/ + /* */ + /* */ + /* FT_UInt32 */ + /* */ + /* A typedef for a 32bit unsigned integer type. The size depends on */ + /* the configuration. */ + /* */ + typedef unsigned XXX FT_UInt32; + + /* */ + +#endif + +#if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) + + typedef signed int FT_Int32; + typedef unsigned int FT_UInt32; + +#elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) + + typedef signed long FT_Int32; + typedef unsigned long FT_UInt32; + +#else +#error "no 32bit type found -- please check your configuration files" +#endif + + + /* look up an integer type that is at least 32 bits */ +#if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) + + typedef int FT_Fast; + typedef unsigned int FT_UFast; + +#elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) + + typedef long FT_Fast; + typedef unsigned long FT_UFast; + +#endif + + + /* determine whether we have a 64-bit int type for platforms without */ + /* Autoconf */ +#if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) + + /* FT_LONG64 must be defined if a 64-bit type is available */ +#define FT_LONG64 +#define FT_INT64 long + +#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __BORLANDC__ ) /* Borland C++ */ + + /* XXXX: We should probably check the value of __BORLANDC__ in order */ + /* to test the compiler version. */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __WATCOMC__ ) /* Watcom C++ */ + + /* Watcom doesn't provide 64-bit data types */ + +#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ + +#define FT_LONG64 +#define FT_INT64 long long int + +#elif defined( __GNUC__ ) + + /* GCC provides the `long long' type */ +#define FT_LONG64 +#define FT_INT64 long long int + +#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ + + + /*************************************************************************/ + /* */ + /* A 64-bit data type will create compilation problems if you compile */ + /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ + /* is defined. You can however ignore this rule by defining the */ + /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ + /* */ +#if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) + +#ifdef __STDC__ + + /* undefine the 64-bit macros in strict ANSI compilation mode */ +#undef FT_LONG64 +#undef FT_INT64 + +#endif /* __STDC__ */ + +#endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ + + +#define FT_BEGIN_STMNT do { +#define FT_END_STMNT } while ( 0 ) +#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT + + +#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER + /* Provide assembler fragments for performance-critical functions. */ + /* These must be defined `static __inline__' with GCC. */ + +#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ +#define FT_MULFIX_ASSEMBLER FT_MulFix_arm + + /* documentation is in freetype.h */ + + static __inline FT_Int32 + FT_MulFix_arm( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 t, t2; + + + __asm + { + smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ + mov a, t, asr #31 /* a = (hi >> 31) */ + add a, a, #0x8000 /* a += 0x8000 */ + adds t2, t2, a /* t2 += a */ + adc t, t, #0 /* t += carry */ + mov a, t2, lsr #16 /* a = t2 >> 16 */ + orr a, a, t, lsl #16 /* a |= t << 16 */ + } + return a; + } + +#endif /* __CC_ARM || __ARMCC__ */ + + +#ifdef __GNUC__ + +#if defined( __arm__ ) && !defined( __thumb__ ) && \ + !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) +#define FT_MULFIX_ASSEMBLER FT_MulFix_arm + + /* documentation is in freetype.h */ + + static __inline__ FT_Int32 + FT_MulFix_arm( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 t, t2; + + + __asm__ __volatile__ ( + "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ + "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ + "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ + "adds %1, %1, %0\n\t" /* %1 += %0 */ + "adc %2, %2, #0\n\t" /* %2 += carry */ + "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ + "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ + : "=r"(a), "=&r"(t2), "=&r"(t) + : "r"(a), "r"(b) ); + return a; + } + +#endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ + +#if defined( __i386__ ) +#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 + + /* documentation is in freetype.h */ + + static __inline__ FT_Int32 + FT_MulFix_i386( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 result; + + + __asm__ __volatile__ ( + "imul %%edx\n" + "movl %%edx, %%ecx\n" + "sarl $31, %%ecx\n" + "addl $0x8000, %%ecx\n" + "addl %%ecx, %%eax\n" + "adcl $0, %%edx\n" + "shrl $16, %%eax\n" + "shll $16, %%edx\n" + "addl %%edx, %%eax\n" + : "=a"(result), "=d"(b) + : "a"(a), "d"(b) + : "%ecx", "cc" ); + return result; + } + +#endif /* i386 */ + +#endif /* __GNUC__ */ + + +#ifdef _MSC_VER /* Visual C++ */ + +#ifdef _M_IX86 + +#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 + + /* documentation is in freetype.h */ + + static __inline FT_Int32 + FT_MulFix_i386( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 result; + + __asm + { + mov eax, a + mov edx, b + imul edx + mov ecx, edx + sar ecx, 31 + add ecx, 8000h + add eax, ecx + adc edx, 0 + shr eax, 16 + shl edx, 16 + add eax, edx + mov result, eax + } + return result; + } + +#endif /* _M_IX86 */ + +#endif /* _MSC_VER */ + +#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ + + +#ifdef FT_CONFIG_OPTION_INLINE_MULFIX +#ifdef FT_MULFIX_ASSEMBLER +#define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER +#endif +#endif + + +#ifdef FT_MAKE_OPTION_SINGLE_OBJECT + +#define FT_LOCAL( x ) static x +#define FT_LOCAL_DEF( x ) static x + +#else + +#ifdef __cplusplus +#define FT_LOCAL( x ) extern "C" x +#define FT_LOCAL_DEF( x ) extern "C" x +#else +#define FT_LOCAL( x ) extern x +#define FT_LOCAL_DEF( x ) x +#endif + +#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ + + +#ifndef FT_BASE + +#ifdef __cplusplus +#define FT_BASE( x ) extern "C" x +#else +#define FT_BASE( x ) extern x +#endif + +#endif /* !FT_BASE */ + + +#ifndef FT_BASE_DEF + +#ifdef __cplusplus +#define FT_BASE_DEF( x ) x +#else +#define FT_BASE_DEF( x ) x +#endif + +#endif /* !FT_BASE_DEF */ + + +#ifndef FT_EXPORT + +#ifdef __cplusplus +#define FT_EXPORT( x ) extern "C" x +#else +#define FT_EXPORT( x ) extern x +#endif + +#endif /* !FT_EXPORT */ + + +#ifndef FT_EXPORT_DEF + +#ifdef __cplusplus +#define FT_EXPORT_DEF( x ) extern "C" x +#else +#define FT_EXPORT_DEF( x ) extern x +#endif + +#endif /* !FT_EXPORT_DEF */ + + +#ifndef FT_EXPORT_VAR + +#ifdef __cplusplus +#define FT_EXPORT_VAR( x ) extern "C" x +#else +#define FT_EXPORT_VAR( x ) extern x +#endif + +#endif /* !FT_EXPORT_VAR */ + + /* The following macros are needed to compile the library with a */ + /* C++ compiler and with 16bit compilers. */ + /* */ + + /* This is special. Within C++, you must specify `extern "C"' for */ + /* functions which are used via function pointers, and you also */ + /* must do that for structures which contain function pointers to */ + /* assure C linkage -- it's not possible to have (local) anonymous */ + /* functions which are accessed by (global) function pointers. */ + /* */ + /* */ + /* FT_CALLBACK_DEF is used to _define_ a callback function. */ + /* */ + /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ + /* contains pointers to callback functions. */ + /* */ + /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ + /* that contains pointers to callback functions. */ + /* */ + /* */ + /* Some 16bit compilers have to redefine these macros to insert */ + /* the infamous `_cdecl' or `__fastcall' declarations. */ + /* */ +#ifndef FT_CALLBACK_DEF +#ifdef __cplusplus +#define FT_CALLBACK_DEF( x ) extern "C" x +#else +#define FT_CALLBACK_DEF( x ) static x +#endif +#endif /* FT_CALLBACK_DEF */ + +#ifndef FT_CALLBACK_TABLE +#ifdef __cplusplus +#define FT_CALLBACK_TABLE extern "C" +#define FT_CALLBACK_TABLE_DEF extern "C" +#else +#define FT_CALLBACK_TABLE extern +#define FT_CALLBACK_TABLE_DEF /* nothing */ +#endif +#endif /* FT_CALLBACK_TABLE */ + + +FT_END_HEADER + + +#endif /* __FTCONFIG_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/config/ftheader.h b/uppsrc/plugin/FT_fontsys/config/ftheader.h new file mode 100644 index 000000000..2a7b8c4e0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/config/ftheader.h @@ -0,0 +1,793 @@ +/***************************************************************************/ +/* */ +/* ftheader.h */ +/* */ +/* Build macros of the FreeType 2 library. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __FT_HEADER_H__ +#define __FT_HEADER_H__ + + + /*@***********************************************************************/ + /* */ + /* */ + /* FT_BEGIN_HEADER */ + /* */ + /* */ + /* This macro is used in association with @FT_END_HEADER in header */ + /* files to ensure that the declarations within are properly */ + /* encapsulated in an `extern "C" { .. }' block when included from a */ + /* C++ compiler. */ + /* */ +#ifdef __cplusplus +#define FT_BEGIN_HEADER extern "C" { +#else +#define FT_BEGIN_HEADER /* nothing */ +#endif + + + /*@***********************************************************************/ + /* */ + /* */ + /* FT_END_HEADER */ + /* */ + /* */ + /* This macro is used in association with @FT_BEGIN_HEADER in header */ + /* files to ensure that the declarations within are properly */ + /* encapsulated in an `extern "C" { .. }' block when included from a */ + /* C++ compiler. */ + /* */ +#ifdef __cplusplus +#define FT_END_HEADER } +#else +#define FT_END_HEADER /* nothing */ +#endif + + + /*************************************************************************/ + /* */ + /* Aliases for the FreeType 2 public and configuration files. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /*
*/ + /* header_file_macros */ + /* */ + /* */ + /* Header File Macros */ + /* */ + /* <Abstract> */ + /* Macro definitions used to #include specific header files. */ + /* */ + /* <Description> */ + /* The following macros are defined to the name of specific */ + /* FreeType~2 header files. They can be used directly in #include */ + /* statements as in: */ + /* */ + /* { */ + /* #include FT_FREETYPE_H */ + /* #include FT_MULTIPLE_MASTERS_H */ + /* #include FT_GLYPH_H */ + /* } */ + /* */ + /* There are several reasons why we are now using macros to name */ + /* public header files. The first one is that such macros are not */ + /* limited to the infamous 8.3~naming rule required by DOS (and */ + /* `FT_MULTIPLE_MASTERS_H' is a lot more meaningful than `ftmm.h'). */ + /* */ + /* The second reason is that it allows for more flexibility in the */ + /* way FreeType~2 is installed on a given system. */ + /* */ + /*************************************************************************/ + + + /* configuration files */ + + /************************************************************************* + * + * @macro: + * FT_CONFIG_CONFIG_H + * + * @description: + * A macro used in #include statements to name the file containing + * FreeType~2 configuration data. + * + */ +#ifndef FT_CONFIG_CONFIG_H +#define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h> +#endif + + + /************************************************************************* + * + * @macro: + * FT_CONFIG_STANDARD_LIBRARY_H + * + * @description: + * A macro used in #include statements to name the file containing + * FreeType~2 interface to the standard C library functions. + * + */ +#ifndef FT_CONFIG_STANDARD_LIBRARY_H +#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h> +#endif + + + /************************************************************************* + * + * @macro: + * FT_CONFIG_OPTIONS_H + * + * @description: + * A macro used in #include statements to name the file containing + * FreeType~2 project-specific configuration options. + * + */ +#ifndef FT_CONFIG_OPTIONS_H +#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h> +#endif + + + /************************************************************************* + * + * @macro: + * FT_CONFIG_MODULES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list of FreeType~2 modules that are statically linked to new library + * instances in @FT_Init_FreeType. + * + */ +#ifndef FT_CONFIG_MODULES_H +#define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h> +#endif + + /* */ + + /* public headers */ + + /************************************************************************* + * + * @macro: + * FT_FREETYPE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * base FreeType~2 API. + * + */ +#define FT_FREETYPE_H <freetype/freetype.h> + + + /************************************************************************* + * + * @macro: + * FT_ERRORS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list of FreeType~2 error codes (and messages). + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_ERRORS_H <freetype/fterrors.h> + + + /************************************************************************* + * + * @macro: + * FT_MODULE_ERRORS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list of FreeType~2 module error offsets (and messages). + * + */ +#define FT_MODULE_ERRORS_H <freetype/ftmoderr.h> + + + /************************************************************************* + * + * @macro: + * FT_SYSTEM_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 interface to low-level operations (i.e., memory management + * and stream i/o). + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_SYSTEM_H <freetype/ftsystem.h> + + + /************************************************************************* + * + * @macro: + * FT_IMAGE_H + * + * @description: + * A macro used in #include statements to name the file containing type + * definitions related to glyph images (i.e., bitmaps, outlines, + * scan-converter parameters). + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_IMAGE_H <freetype/ftimage.h> + + + /************************************************************************* + * + * @macro: + * FT_TYPES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * basic data types defined by FreeType~2. + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_TYPES_H <freetype/fttypes.h> + + + /************************************************************************* + * + * @macro: + * FT_LIST_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list management API of FreeType~2. + * + * (Most applications will never need to include this file.) + * + */ +#define FT_LIST_H <freetype/ftlist.h> + + + /************************************************************************* + * + * @macro: + * FT_OUTLINE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * scalable outline management API of FreeType~2. + * + */ +#define FT_OUTLINE_H <freetype/ftoutln.h> + + + /************************************************************************* + * + * @macro: + * FT_SIZES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API which manages multiple @FT_Size objects per face. + * + */ +#define FT_SIZES_H <freetype/ftsizes.h> + + + /************************************************************************* + * + * @macro: + * FT_MODULE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * module management API of FreeType~2. + * + */ +#define FT_MODULE_H <freetype/ftmodapi.h> + + + /************************************************************************* + * + * @macro: + * FT_RENDER_H + * + * @description: + * A macro used in #include statements to name the file containing the + * renderer module management API of FreeType~2. + * + */ +#define FT_RENDER_H <freetype/ftrender.h> + + + /************************************************************************* + * + * @macro: + * FT_TYPE1_TABLES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * types and API specific to the Type~1 format. + * + */ +#define FT_TYPE1_TABLES_H <freetype/t1tables.h> + + + /************************************************************************* + * + * @macro: + * FT_TRUETYPE_IDS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * enumeration values which identify name strings, languages, encodings, + * etc. This file really contains a _large_ set of constant macro + * definitions, taken from the TrueType and OpenType specifications. + * + */ +#define FT_TRUETYPE_IDS_H <freetype/ttnameid.h> + + + /************************************************************************* + * + * @macro: + * FT_TRUETYPE_TABLES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * types and API specific to the TrueType (as well as OpenType) format. + * + */ +#define FT_TRUETYPE_TABLES_H <freetype/tttables.h> + + + /************************************************************************* + * + * @macro: + * FT_TRUETYPE_TAGS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of TrueType four-byte `tags' which identify blocks in + * SFNT-based font formats (i.e., TrueType and OpenType). + * + */ +#define FT_TRUETYPE_TAGS_H <freetype/tttags.h> + + + /************************************************************************* + * + * @macro: + * FT_BDF_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which accesses BDF-specific strings from a + * face. + * + */ +#define FT_BDF_H <freetype/ftbdf.h> + + + /************************************************************************* + * + * @macro: + * FT_CID_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which access CID font information from a + * face. + * + */ +#define FT_CID_H <freetype/ftcid.h> + + + /************************************************************************* + * + * @macro: + * FT_GZIP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports gzip-compressed files. + * + */ +#define FT_GZIP_H <freetype/ftgzip.h> + + + /************************************************************************* + * + * @macro: + * FT_LZW_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports LZW-compressed files. + * + */ +#define FT_LZW_H <freetype/ftlzw.h> + + + /************************************************************************* + * + * @macro: + * FT_BZIP2_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports bzip2-compressed files. + * + */ +#define FT_BZIP2_H <freetype/ftbzip2.h> + + + /************************************************************************* + * + * @macro: + * FT_WINFONTS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports Windows FNT files. + * + */ +#define FT_WINFONTS_H <freetype/ftwinfnt.h> + + + /************************************************************************* + * + * @macro: + * FT_GLYPH_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional glyph management component. + * + */ +#define FT_GLYPH_H <freetype/ftglyph.h> + + + /************************************************************************* + * + * @macro: + * FT_BITMAP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional bitmap conversion component. + * + */ +#define FT_BITMAP_H <freetype/ftbitmap.h> + + + /************************************************************************* + * + * @macro: + * FT_BBOX_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional exact bounding box computation routines. + * + */ +#define FT_BBOX_H <freetype/ftbbox.h> + + + /************************************************************************* + * + * @macro: + * FT_CACHE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional FreeType~2 cache sub-system. + * + */ +#define FT_CACHE_H <freetype/ftcache.h> + + + /************************************************************************* + * + * @macro: + * FT_CACHE_IMAGE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * `glyph image' API of the FreeType~2 cache sub-system. + * + * It is used to define a cache for @FT_Glyph elements. You can also + * use the API defined in @FT_CACHE_SMALL_BITMAPS_H if you only need to + * store small glyph bitmaps, as it will use less memory. + * + * This macro is deprecated. Simply include @FT_CACHE_H to have all + * glyph image-related cache declarations. + * + */ +#define FT_CACHE_IMAGE_H FT_CACHE_H + + + /************************************************************************* + * + * @macro: + * FT_CACHE_SMALL_BITMAPS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * `small bitmaps' API of the FreeType~2 cache sub-system. + * + * It is used to define a cache for small glyph bitmaps in a relatively + * memory-efficient way. You can also use the API defined in + * @FT_CACHE_IMAGE_H if you want to cache arbitrary glyph images, + * including scalable outlines. + * + * This macro is deprecated. Simply include @FT_CACHE_H to have all + * small bitmaps-related cache declarations. + * + */ +#define FT_CACHE_SMALL_BITMAPS_H FT_CACHE_H + + + /************************************************************************* + * + * @macro: + * FT_CACHE_CHARMAP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * `charmap' API of the FreeType~2 cache sub-system. + * + * This macro is deprecated. Simply include @FT_CACHE_H to have all + * charmap-based cache declarations. + * + */ +#define FT_CACHE_CHARMAP_H FT_CACHE_H + + + /************************************************************************* + * + * @macro: + * FT_MAC_H + * + * @description: + * A macro used in #include statements to name the file containing the + * Macintosh-specific FreeType~2 API. The latter is used to access + * fonts embedded in resource forks. + * + * This header file must be explicitly included by client applications + * compiled on the Mac (note that the base API still works though). + * + */ +#define FT_MAC_H <freetype/ftmac.h> + + + /************************************************************************* + * + * @macro: + * FT_MULTIPLE_MASTERS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional multiple-masters management API of FreeType~2. + * + */ +#define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h> + + + /************************************************************************* + * + * @macro: + * FT_SFNT_NAMES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional FreeType~2 API which accesses embedded `name' strings in + * SFNT-based font formats (i.e., TrueType and OpenType). + * + */ +#define FT_SFNT_NAMES_H <freetype/ftsnames.h> + + + /************************************************************************* + * + * @macro: + * FT_OPENTYPE_VALIDATE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional FreeType~2 API which validates OpenType tables (BASE, GDEF, + * GPOS, GSUB, JSTF). + * + */ +#define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h> + + + /************************************************************************* + * + * @macro: + * FT_GX_VALIDATE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional FreeType~2 API which validates TrueTypeGX/AAT tables (feat, + * mort, morx, bsln, just, kern, opbd, trak, prop). + * + */ +#define FT_GX_VALIDATE_H <freetype/ftgxval.h> + + + /************************************************************************* + * + * @macro: + * FT_PFR_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which accesses PFR-specific data. + * + */ +#define FT_PFR_H <freetype/ftpfr.h> + + + /************************************************************************* + * + * @macro: + * FT_STROKER_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which provides functions to stroke outline paths. + */ +#define FT_STROKER_H <freetype/ftstroke.h> + + + /************************************************************************* + * + * @macro: + * FT_SYNTHESIS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs artificial obliquing and emboldening. + */ +#define FT_SYNTHESIS_H <freetype/ftsynth.h> + + + /************************************************************************* + * + * @macro: + * FT_XFREE86_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which provides functions specific to the XFree86 and + * X.Org X11 servers. + */ +#define FT_XFREE86_H <freetype/ftxf86.h> + + + /************************************************************************* + * + * @macro: + * FT_TRIGONOMETRY_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs trigonometric computations (e.g., + * cosines and arc tangents). + */ +#define FT_TRIGONOMETRY_H <freetype/fttrigon.h> + + + /************************************************************************* + * + * @macro: + * FT_LCD_FILTER_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs color filtering for subpixel rendering. + */ +#define FT_LCD_FILTER_H <freetype/ftlcdfil.h> + + + /************************************************************************* + * + * @macro: + * FT_UNPATENTED_HINTING_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs color filtering for subpixel rendering. + */ +#define FT_UNPATENTED_HINTING_H <freetype/ttunpat.h> + + + /************************************************************************* + * + * @macro: + * FT_INCREMENTAL_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs color filtering for subpixel rendering. + */ +#define FT_INCREMENTAL_H <freetype/ftincrem.h> + + + /************************************************************************* + * + * @macro: + * FT_GASP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which returns entries from the TrueType GASP table. + */ +#define FT_GASP_H <freetype/ftgasp.h> + + + /************************************************************************* + * + * @macro: + * FT_ADVANCES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which returns individual and ranged glyph advances. + */ +#define FT_ADVANCES_H <freetype/ftadvanc.h> + + + /* */ + +#define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h> + + + /* The internals of the cache sub-system are no longer exposed. We */ + /* default to FT_CACHE_H at the moment just in case, but we know of */ + /* no rogue client that uses them. */ + /* */ +#define FT_CACHE_MANAGER_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_MRU_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_MANAGER_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_CACHE_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_GLYPH_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_IMAGE_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_SBITS_H <freetype/ftcache.h> + + +#define FT_INCREMENTAL_H <freetype/ftincrem.h> + +#define FT_TRUETYPE_UNPATENTED_H <freetype/ttunpat.h> + + + /* + * Include internal headers definitions from <freetype/internal/...> + * only when building the library. + */ +#ifdef FT2_BUILD_LIBRARY +#define FT_INTERNAL_INTERNAL_H <freetype/internal/internal.h> +#include FT_INTERNAL_INTERNAL_H +#endif /* FT2_BUILD_LIBRARY */ + + +#endif /* __FT2_BUILD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/config/ftmodule.h b/uppsrc/plugin/FT_fontsys/config/ftmodule.h new file mode 100644 index 000000000..76d271a74 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/config/ftmodule.h @@ -0,0 +1,32 @@ +/* + * This file registers the FreeType modules compiled into the library. + * + * If you use GNU make, this file IS NOT USED! Instead, it is created in + * the objects directory (normally `<topdir>/objs/') based on information + * from `<topdir>/modules.cfg'. + * + * Please read `docs/INSTALL.ANY' and `docs/CUSTOMIZE' how to compile + * FreeType without GNU make. + * + */ + +FT_USE_MODULE( FT_Module_Class, autofit_module_class ) +FT_USE_MODULE( FT_Driver_ClassRec, tt_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, cff_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class ) +FT_USE_MODULE( FT_Module_Class, psaux_module_class ) +FT_USE_MODULE( FT_Module_Class, psnames_module_class ) +FT_USE_MODULE( FT_Module_Class, pshinter_module_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class ) +FT_USE_MODULE( FT_Module_Class, sfnt_module_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_lcd_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_lcdv_renderer_class ) +FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class ) + +/* EOF */ diff --git a/uppsrc/plugin/FT_fontsys/config/ftoption.h b/uppsrc/plugin/FT_fontsys/config/ftoption.h new file mode 100644 index 000000000..b6b2c9f07 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/config/ftoption.h @@ -0,0 +1,805 @@ +/***************************************************************************/ +/* */ +/* ftoption.h */ +/* */ +/* User-selectable configuration macros (specification only). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOPTION_H__ +#define __FTOPTION_H__ + + +#include <freetype/ft2build.h> + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* USER-SELECTABLE CONFIGURATION MACROS */ + /* */ + /* This file contains the default configuration macro definitions for */ + /* a standard build of the FreeType library. There are three ways to */ + /* use this file to build project-specific versions of the library: */ + /* */ + /* - You can modify this file by hand, but this is not recommended in */ + /* cases where you would like to build several versions of the */ + /* library from a single source directory. */ + /* */ + /* - You can put a copy of this file in your build directory, more */ + /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ + /* is the name of a directory that is included _before_ the FreeType */ + /* include path during compilation. */ + /* */ + /* The default FreeType Makefiles and Jamfiles use the build */ + /* directory `builds/<system>' by default, but you can easily change */ + /* that for your own projects. */ + /* */ + /* - Copy the file <../ft2build.h> to `$BUILD/ft2build.h' and modify it */ + /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ + /* locate this file during the build. For example, */ + /* */ + /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ + /* #include <freetype/config/ftheader.h> */ + /* */ + /* will use `$BUILD/myftoptions.h' instead of this file for macro */ + /* definitions. */ + /* */ + /* Note also that you can similarly pre-define the macro */ + /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ + /* that are statically linked to the library at compile time. By */ + /* default, this file is <freetype/config/ftmodule.h>. */ + /* */ + /* We highly recommend using the third method whenever possible. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Uncomment the line below if you want to activate sub-pixel rendering */ + /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ + /* */ + /* Note that this feature is covered by several Microsoft patents */ + /* and should not be activated in any default build of the library. */ + /* */ + /* This macro has no impact on the FreeType API, only on its */ + /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ + /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ + /* the original size in case this macro isn't defined; however, each */ + /* triplet of subpixels has R=G=B. */ + /* */ + /* This is done to allow FreeType clients to run unmodified, forcing */ + /* them to display normal gray-level anti-aliased glyphs. */ + /* */ +/* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + + /*************************************************************************/ + /* */ + /* Many compilers provide a non-ANSI 64-bit data type that can be used */ + /* by FreeType to speed up some computations. However, this will create */ + /* some problems when compiling the library in strict ANSI mode. */ + /* */ + /* For this reason, the use of 64-bit integers is normally disabled when */ + /* the __STDC__ macro is defined. You can however disable this by */ + /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ + /* */ + /* For most compilers, this will only create compilation warnings when */ + /* building the library. */ + /* */ + /* ObNote: The compiler-specific 64-bit integers are detected in the */ + /* file `ftconfig.h' either statically or through the */ + /* `configure' script on supported platforms. */ + /* */ +#undef FT_CONFIG_OPTION_FORCE_INT64 + + + /*************************************************************************/ + /* */ + /* If this macro is defined, do not try to use an assembler version of */ + /* performance-critical functions (e.g. FT_MulFix). You should only do */ + /* that to verify that the assembler function works properly, or to */ + /* execute benchmark tests of the various implementations. */ +/* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ + + + /*************************************************************************/ + /* */ + /* If this macro is defined, try to use an inlined assembler version of */ + /* the `FT_MulFix' function, which is a `hotspot' when loading and */ + /* hinting glyphs, and which should be executed as fast as possible. */ + /* */ + /* Note that if your compiler or CPU is not supported, this will default */ + /* to the standard and portable implementation found in `ftcalc.c'. */ + /* */ +#define FT_CONFIG_OPTION_INLINE_MULFIX + + + /*************************************************************************/ + /* */ + /* LZW-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `compress' program. This is mostly used to parse many of the PCF */ + /* files that come with various X11 distributions. The implementation */ + /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ + /* (see src/lzw/ftgzip.c). */ + /* */ + /* Define this macro if you want to enable this `feature'. */ + /* */ +#define FT_CONFIG_OPTION_USE_LZW + + + /*************************************************************************/ + /* */ + /* Gzip-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `gzip' program. This is mostly used to parse many of the PCF files */ + /* that come with XFree86. The implementation uses `zlib' to */ + /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ + /* */ + /* Define this macro if you want to enable this `feature'. See also */ + /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ + /* */ +#define FT_CONFIG_OPTION_USE_ZLIB + + + /*************************************************************************/ + /* */ + /* ZLib library selection */ + /* */ + /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ + /* It allows FreeType's `ftgzip' component to link to the system's */ + /* installation of the ZLib library. This is useful on systems like */ + /* Unix or VMS where it generally is already available. */ + /* */ + /* If you let it undefined, the component will use its own copy */ + /* of the zlib sources instead. These have been modified to be */ + /* included directly within the component and *not* export external */ + /* function names. This allows you to link any program with FreeType */ + /* _and_ ZLib without linking conflicts. */ + /* */ + /* Do not #undef this macro here since the build system might define */ + /* it for certain configurations only. */ + /* */ +/* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + + /*************************************************************************/ + /* */ + /* Bzip2-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `bzip2' program. This is mostly used to parse many of the PCF */ + /* files that come with XFree86. The implementation uses `libbz2' to */ + /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ + /* Contrary to gzip, bzip2 currently is not included and need to use */ + /* the system available bzip2 implementation. */ + /* */ + /* Define this macro if you want to enable this `feature'. */ + /* */ +/* #define FT_CONFIG_OPTION_USE_BZIP2 */ + + + /*************************************************************************/ + /* */ + /* Define to disable the use of file stream functions and types, FILE, */ + /* fopen() etc. Enables the use of smaller system libraries on embedded */ + /* systems that have multiple system libraries, some with or without */ + /* file stream support, in the cases where file stream support is not */ + /* necessary such as memory loading of font files. */ + /* */ +/* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ + + + /*************************************************************************/ + /* */ + /* DLL export compilation */ + /* */ + /* When compiling FreeType as a DLL, some systems/compilers need a */ + /* special keyword in front OR after the return type of function */ + /* declarations. */ + /* */ + /* Two macros are used within the FreeType source code to define */ + /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ + /* */ + /* FT_EXPORT( return_type ) */ + /* */ + /* is used in a function declaration, as in */ + /* */ + /* FT_EXPORT( FT_Error ) */ + /* FT_Init_FreeType( FT_Library* alibrary ); */ + /* */ + /* */ + /* FT_EXPORT_DEF( return_type ) */ + /* */ + /* is used in a function definition, as in */ + /* */ + /* FT_EXPORT_DEF( FT_Error ) */ + /* FT_Init_FreeType( FT_Library* alibrary ) */ + /* { */ + /* ... some code ... */ + /* return FT_Err_Ok; */ + /* } */ + /* */ + /* You can provide your own implementation of FT_EXPORT and */ + /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ + /* will be later automatically defined as `extern return_type' to */ + /* allow normal compilation. */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_EXPORT(x) extern x */ +/* #define FT_EXPORT_DEF(x) x */ + + + /*************************************************************************/ + /* */ + /* Glyph Postscript Names handling */ + /* */ + /* By default, FreeType 2 is compiled with the `psnames' module. This */ + /* module is in charge of converting a glyph name string into a */ + /* Unicode value, or return a Macintosh standard glyph name for the */ + /* use with the TrueType `post' table. */ + /* */ + /* Undefine this macro if you do not want `psnames' compiled in your */ + /* build of FreeType. This has the following effects: */ + /* */ + /* - The TrueType driver will provide its own set of glyph names, */ + /* if you build it to support postscript names in the TrueType */ + /* `post' table. */ + /* */ + /* - The Type 1 driver will not be able to synthesize a Unicode */ + /* charmap out of the glyphs found in the fonts. */ + /* */ + /* You would normally undefine this configuration macro when building */ + /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ + /* */ +#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + + /*************************************************************************/ + /* */ + /* Postscript Names to Unicode Values support */ + /* */ + /* By default, FreeType 2 is built with the `PSNames' module compiled */ + /* in. Among other things, the module is used to convert a glyph name */ + /* into a Unicode value. This is especially useful in order to */ + /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ + /* through a big table named the `Adobe Glyph List' (AGL). */ + /* */ + /* Undefine this macro if you do not want the Adobe Glyph List */ + /* compiled in your `PSNames' module. The Type 1 driver will not be */ + /* able to synthesize a Unicode charmap out of the glyphs found in the */ + /* fonts. */ + /* */ +#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + + /*************************************************************************/ + /* */ + /* Support for Mac fonts */ + /* */ + /* Define this macro if you want support for outline fonts in Mac */ + /* format (mac dfont, mac resource, macbinary containing a mac */ + /* resource) on non-Mac platforms. */ + /* */ + /* Note that the `FOND' resource isn't checked. */ + /* */ +#define FT_CONFIG_OPTION_MAC_FONTS + + + /*************************************************************************/ + /* */ + /* Guessing methods to access embedded resource forks */ + /* */ + /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ + /* GNU/Linux). */ + /* */ + /* Resource forks which include fonts data are stored sometimes in */ + /* locations which users or developers don't expected. In some cases, */ + /* resource forks start with some offset from the head of a file. In */ + /* other cases, the actual resource fork is stored in file different */ + /* from what the user specifies. If this option is activated, */ + /* FreeType tries to guess whether such offsets or different file */ + /* names must be used. */ + /* */ + /* Note that normal, direct access of resource forks is controlled via */ + /* the FT_CONFIG_OPTION_MAC_FONTS option. */ + /* */ +#ifdef FT_CONFIG_OPTION_MAC_FONTS +#define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK +#endif + + + /*************************************************************************/ + /* */ + /* Allow the use of FT_Incremental_Interface to load typefaces that */ + /* contain no glyph data, but supply it via a callback function. */ + /* This is required by clients supporting document formats which */ + /* supply font data incrementally as the document is parsed, such */ + /* as the Ghostscript interpreter for the PostScript language. */ + /* */ +#define FT_CONFIG_OPTION_INCREMENTAL + + + /*************************************************************************/ + /* */ + /* The size in bytes of the render pool used by the scan-line converter */ + /* to do all of its work. */ + /* */ + /* This must be greater than 4KByte if you use FreeType to rasterize */ + /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ + /* allocation of the render pool. */ + /* */ +#define FT_RENDER_POOL_SIZE 16384L + + + /*************************************************************************/ + /* */ + /* FT_MAX_MODULES */ + /* */ + /* The maximum number of modules that can be registered in a single */ + /* FreeType library object. 32 is the default. */ + /* */ +#define FT_MAX_MODULES 32 + + + /*************************************************************************/ + /* */ + /* Debug level */ + /* */ + /* FreeType can be compiled in debug or trace mode. In debug mode, */ + /* errors are reported through the `ftdebug' component. In trace */ + /* mode, additional messages are sent to the standard output during */ + /* execution. */ + /* */ + /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ + /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ + /* */ + /* Don't define any of these macros to compile in `release' mode! */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_DEBUG_LEVEL_ERROR */ +/* #define FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /* */ + /* Autofitter debugging */ + /* */ + /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ + /* control the autofitter behaviour for debugging purposes with global */ + /* boolean variables (consequently, you should *never* enable this */ + /* while compiling in `release' mode): */ + /* */ + /* _af_debug_disable_horz_hints */ + /* _af_debug_disable_vert_hints */ + /* _af_debug_disable_blue_hints */ + /* */ + /* Additionally, the following functions provide dumps of various */ + /* internal autofit structures to stdout (using `printf'): */ + /* */ + /* af_glyph_hints_dump_points */ + /* af_glyph_hints_dump_segments */ + /* af_glyph_hints_dump_edges */ + /* */ + /* As an argument, they use another global variable: */ + /* */ + /* _af_debug_hints */ + /* */ + /* Please have a look at the `ftgrid' demo program to see how those */ + /* variables and macros should be used. */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_DEBUG_AUTOFIT */ + + + /*************************************************************************/ + /* */ + /* Memory Debugging */ + /* */ + /* FreeType now comes with an integrated memory debugger that is */ + /* capable of detecting simple errors like memory leaks or double */ + /* deletes. To compile it within your build of the library, you */ + /* should define FT_DEBUG_MEMORY here. */ + /* */ + /* Note that the memory debugger is only activated at runtime when */ + /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ + /* */ + /* Do not #undef this macro here since the build system might define */ + /* it for certain configurations only. */ + /* */ +/* #define FT_DEBUG_MEMORY */ + + + /*************************************************************************/ + /* */ + /* Module errors */ + /* */ + /* If this macro is set (which is _not_ the default), the higher byte */ + /* of an error code gives the module in which the error has occurred, */ + /* while the lower byte is the real error code. */ + /* */ + /* Setting this macro makes sense for debugging purposes only, since */ + /* it would break source compatibility of certain programs that use */ + /* FreeType 2. */ + /* */ + /* More details can be found in the files ftmoderr.h and fterrors.h. */ + /* */ +#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS + + + /*************************************************************************/ + /* */ + /* Position Independent Code */ + /* */ + /* If this macro is set (which is _not_ the default), FreeType2 will */ + /* avoid creating constants that require address fixups. Instead the */ + /* constants will be moved into a struct and additional intialization */ + /* code will be used. */ + /* */ + /* Setting this macro is needed for systems that prohibit address */ + /* fixups, such as BREW. */ + /* */ +/* #define FT_CONFIG_OPTION_PIC */ + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ + /* embedded bitmaps in all formats using the SFNT module (namely */ + /* TrueType & OpenType). */ + /* */ +#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ + /* load and enumerate the glyph Postscript names in a TrueType or */ + /* OpenType file. */ + /* */ + /* Note that when you do not compile the `PSNames' module by undefining */ + /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ + /* contain additional code used to read the PS Names table from a font. */ + /* */ + /* (By default, the module uses `PSNames' to extract glyph names.) */ + /* */ +#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ + /* access the internal name table in a SFNT-based format like TrueType */ + /* or OpenType. The name table contains various strings used to */ + /* describe the font, like family name, copyright, version, etc. It */ + /* does not contain any glyph name though. */ + /* */ + /* Accessing SFNT names is done through the functions declared in */ + /* `freetype/ftsnames.h'. */ + /* */ +#define TT_CONFIG_OPTION_SFNT_NAMES + + + /*************************************************************************/ + /* */ + /* TrueType CMap support */ + /* */ + /* Here you can fine-tune which TrueType CMap table format shall be */ + /* supported. */ +#define TT_CONFIG_CMAP_FORMAT_0 +#define TT_CONFIG_CMAP_FORMAT_2 +#define TT_CONFIG_CMAP_FORMAT_4 +#define TT_CONFIG_CMAP_FORMAT_6 +#define TT_CONFIG_CMAP_FORMAT_8 +#define TT_CONFIG_CMAP_FORMAT_10 +#define TT_CONFIG_CMAP_FORMAT_12 +#define TT_CONFIG_CMAP_FORMAT_13 +#define TT_CONFIG_CMAP_FORMAT_14 + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ + /* a bytecode interpreter in the TrueType driver. */ + /* */ + /* By undefining this, you will only compile the code necessary to load */ + /* TrueType glyphs without hinting. */ + /* */ + /* Do not #undef this macro here, since the build system might */ + /* define it for certain configurations only. */ + /* */ +#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER + + + /*************************************************************************/ + /* */ + /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ + /* of the TrueType bytecode interpreter is used that doesn't implement */ + /* any of the patented opcodes and algorithms. The patents related to */ + /* TrueType hinting have expired worldwide since May 2010; this option */ + /* is now deprecated. */ + /* */ + /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ + /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ + /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ + /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ + /* */ + /* This macro is only useful for a small number of font files (mostly */ + /* for Asian scripts) that require bytecode interpretation to properly */ + /* load glyphs. For all other fonts, this produces unpleasant results, */ + /* thus the unpatented interpreter is never used to load glyphs from */ + /* TrueType fonts unless one of the following two options is used. */ + /* */ + /* - The unpatented interpreter is explicitly activated by the user */ + /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ + /* when opening the FT_Face. */ + /* */ + /* - FreeType detects that the FT_Face corresponds to one of the */ + /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ + /* contains a hard-coded list of font names and other matching */ + /* parameters (see function `tt_face_init' in file */ + /* `src/truetype/ttobjs.c'). */ + /* */ + /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ + /* */ + /* { */ + /* FT_Parameter parameter; */ + /* FT_Open_Args open_args; */ + /* */ + /* */ + /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ + /* */ + /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ + /* open_args.pathname = my_font_pathname; */ + /* open_args.num_params = 1; */ + /* open_args.params = ¶meter; */ + /* */ + /* error = FT_Open_Face( library, &open_args, index, &face ); */ + /* ... */ + /* } */ + /* */ +/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ + /* bytecode interpreter with a huge switch statement, rather than a call */ + /* table. This results in smaller and faster code for a number of */ + /* architectures. */ + /* */ + /* Note however that on some compiler/processor combinations, undefining */ + /* this macro will generate faster, though larger, code. */ + /* */ +#define TT_CONFIG_OPTION_INTERPRETER_SWITCH + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ + /* TrueType glyph loader to use Apple's definition of how to handle */ + /* component offsets in composite glyphs. */ + /* */ + /* Apple and MS disagree on the default behavior of component offsets */ + /* in composites. Apple says that they should be scaled by the scaling */ + /* factors in the transformation matrix (roughly, it's more complex) */ + /* while MS says they should not. OpenType defines two bits in the */ + /* composite flags array which can be used to disambiguate, but old */ + /* fonts will not have them. */ + /* */ + /* http://www.microsoft.com/typography/otspec/glyf.htm */ + /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ + /* */ +#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ + /* support for Apple's distortable font technology (fvar, gvar, cvar, */ + /* and avar tables). This has many similarities to Type 1 Multiple */ + /* Masters support. */ + /* */ +#define TT_CONFIG_OPTION_GX_VAR_SUPPORT + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ + /* an embedded `BDF ' table within SFNT-based bitmap formats. */ + /* */ +#define TT_CONFIG_OPTION_BDF + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */ + /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ + /* required. */ + /* */ +#define T1_MAX_DICT_DEPTH 5 + + + /*************************************************************************/ + /* */ + /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ + /* calls during glyph loading. */ + /* */ +#define T1_MAX_SUBRS_CALLS 16 + + + /*************************************************************************/ + /* */ + /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ + /* minimum of 16 is required. */ + /* */ + /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ + /* */ +#define T1_MAX_CHARSTRINGS_OPERANDS 256 + + + /*************************************************************************/ + /* */ + /* Define this configuration macro if you want to prevent the */ + /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ + /* files into an existing face. Note that if set, the T1 driver will be */ + /* unable to produce kerning distances. */ + /* */ +#undef T1_CONFIG_OPTION_NO_AFM + + + /*************************************************************************/ + /* */ + /* Define this configuration macro if you want to prevent the */ + /* compilation of the Multiple Masters font support in the Type 1 */ + /* driver. */ + /* */ +#undef T1_CONFIG_OPTION_NO_MM_SUPPORT + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** A U T O F I T M O D U L E C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ + /* support. */ + /* */ +#define AF_CONFIG_OPTION_CJK + + /*************************************************************************/ + /* */ + /* Compile autofit module with Indic script support. */ + /* */ +#define AF_CONFIG_OPTION_INDIC + + /*************************************************************************/ + /* */ + /* Compile autofit module with warp hinting. The idea of the warping */ + /* code is to slightly scale and shift a glyph within a single dimension */ + /* so that as much of its segments are aligned (more or less) on the */ + /* grid. To find out the optimal scaling and shifting value, various */ + /* parameter combinations are tried and scored. */ + /* */ + /* This experimental option is only active if the render mode is */ + /* FT_RENDER_MODE_LIGHT. */ + /* */ +/* #define AF_CONFIG_OPTION_USE_WARPER */ + + /* */ + + + /* + * Define this variable if you want to keep the layout of internal + * structures that was used prior to FreeType 2.2. This also compiles in + * a few obsolete functions to avoid linking problems on typical Unix + * distributions. + * + * For embedded systems or building a new distribution from scratch, it + * is recommended to disable the macro since it reduces the library's code + * size and activates a few memory-saving optimizations as well. + */ +#define FT_CONFIG_OPTION_OLD_INTERNALS + + + /* + * To detect legacy cache-lookup call from a rogue client (<= 2.1.7), + * we restrict the number of charmaps in a font. The current API of + * FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API + * takes charcode only. To determine the passed value is for cmap_index + * or charcode, the possible cmap_index is restricted not to exceed + * the minimum possible charcode by a rogue client. It is also very + * unlikely that a rogue client is interested in Unicode values 0 to 15. + * + * NOTE: The original threshold was 4 deduced from popular number of + * cmap subtables in UCS-4 TrueType fonts, but now it is not + * irregular for OpenType fonts to have more than 4 subtables, + * because variation selector subtables are available for Apple + * and Microsoft platforms. + */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_MAX_CHARMAP_CACHEABLE 15 +#endif + + + /* + * This macro is defined if either unpatented or native TrueType + * hinting is requested by the definitions above. + */ +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER +#define TT_USE_BYTECODE_INTERPRETER +#undef TT_CONFIG_OPTION_UNPATENTED_HINTING +#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING +#define TT_USE_BYTECODE_INTERPRETER +#endif + +FT_END_HEADER + + +#endif /* __FTOPTION_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/config/ftstdlib.h b/uppsrc/plugin/FT_fontsys/config/ftstdlib.h new file mode 100644 index 000000000..30ec14e74 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/config/ftstdlib.h @@ -0,0 +1,173 @@ +/***************************************************************************/ +/* */ +/* ftstdlib.h */ +/* */ +/* ANSI-specific library and header configuration file (specification */ +/* only). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to group all #includes to the ANSI C library that */ + /* FreeType normally requires. It also defines macros to rename the */ + /* standard functions within the FreeType source code. */ + /* */ + /* Load a file which defines __FTSTDLIB_H__ before this one to override */ + /* it. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTSTDLIB_H__ +#define __FTSTDLIB_H__ + + +#include <stddef.h> + +#define ft_ptrdiff_t ptrdiff_t + + + /**********************************************************************/ + /* */ + /* integer limits */ + /* */ + /* UINT_MAX and ULONG_MAX are used to automatically compute the size */ + /* of `int' and `long' in bytes at compile-time. So far, this works */ + /* for all platforms the library has been tested on. */ + /* */ + /* Note that on the extremely rare platforms that do not provide */ + /* integer types that are _exactly_ 16 and 32 bits wide (e.g. some */ + /* old Crays where `int' is 36 bits), we do not make any guarantee */ + /* about the correct behaviour of FT2 with all fonts. */ + /* */ + /* In these case, `ftconfig.h' will refuse to compile anyway with a */ + /* message like `couldn't find 32-bit type' or something similar. */ + /* */ + /**********************************************************************/ + + +#include <limits.h> + +#define FT_CHAR_BIT CHAR_BIT +#define FT_INT_MAX INT_MAX +#define FT_INT_MIN INT_MIN +#define FT_UINT_MAX UINT_MAX +#define FT_ULONG_MAX ULONG_MAX + + + /**********************************************************************/ + /* */ + /* character and string processing */ + /* */ + /**********************************************************************/ + + +#include <string.h> + +#define ft_memchr memchr +#define ft_memcmp memcmp +#define ft_memcpy memcpy +#define ft_memmove memmove +#define ft_memset memset +#define ft_strcat strcat +#define ft_strcmp strcmp +#define ft_strcpy strcpy +#define ft_strlen strlen +#define ft_strncmp strncmp +#define ft_strncpy strncpy +#define ft_strrchr strrchr +#define ft_strstr strstr + + + /**********************************************************************/ + /* */ + /* file handling */ + /* */ + /**********************************************************************/ + + +#include <stdio.h> + +#define FT_FILE FILE +#define ft_fclose fclose +#define ft_fopen fopen +#define ft_fread fread +#define ft_fseek fseek +#define ft_ftell ftell +#define ft_sprintf sprintf + + + /**********************************************************************/ + /* */ + /* sorting */ + /* */ + /**********************************************************************/ + + +#include <stdlib.h> + +#define ft_qsort qsort + + + /**********************************************************************/ + /* */ + /* memory allocation */ + /* */ + /**********************************************************************/ + + +#define ft_scalloc calloc +#define ft_sfree free +#define ft_smalloc malloc +#define ft_srealloc realloc + + + /**********************************************************************/ + /* */ + /* miscellaneous */ + /* */ + /**********************************************************************/ + + +#define ft_atol atol +#define ft_labs labs + + + /**********************************************************************/ + /* */ + /* execution control */ + /* */ + /**********************************************************************/ + + +#include <setjmp.h> + +#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */ + /* jmp_buf is defined as a macro */ + /* on certain platforms */ + +#define ft_longjmp longjmp +#define ft_setjmp( b ) setjmp( *(jmp_buf*) &(b) ) /* same thing here */ + + + /* the following is only used for debugging purposes, i.e., if */ + /* FT_DEBUG_LEVEL_ERROR or FT_DEBUG_LEVEL_TRACE are defined */ + +#include <stdarg.h> + + +#endif /* __FTSTDLIB_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/freetype.h b/uppsrc/plugin/FT_fontsys/freetype.h new file mode 100644 index 000000000..fda618a34 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/freetype.h @@ -0,0 +1,3921 @@ +/***************************************************************************/ +/* */ +/* freetype.h */ +/* */ +/* FreeType high-level API and common types (specification only). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef FT_FREETYPE_H +#error "`ft2build.h' hasn't been included yet!" +#error "Please always use macros to include FreeType header files." +#error "Example:" +#error " #include "ft2build.h"" +#error " #include FT_FREETYPE_H" +#endif + + +#ifndef __FREETYPE_H__ +#define __FREETYPE_H__ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_ERRORS_H +#include FT_TYPES_H + + +FT_BEGIN_HEADER + + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* user_allocation */ + /* */ + /* <Title> */ + /* User allocation */ + /* */ + /* <Abstract> */ + /* How client applications should allocate FreeType data structures. */ + /* */ + /* <Description> */ + /* FreeType assumes that structures allocated by the user and passed */ + /* as arguments are zeroed out except for the actual data. In other */ + /* words, it is recommended to use `calloc' (or variants of it) */ + /* instead of `malloc' for allocation. */ + /* */ + /*************************************************************************/ + + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* B A S I C T Y P E S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* base_interface */ + /* */ + /* <Title> */ + /* Base Interface */ + /* */ + /* <Abstract> */ + /* The FreeType~2 base font interface. */ + /* */ + /* <Description> */ + /* This section describes the public high-level API of FreeType~2. */ + /* */ + /* <Order> */ + /* FT_Library */ + /* FT_Face */ + /* FT_Size */ + /* FT_GlyphSlot */ + /* FT_CharMap */ + /* FT_Encoding */ + /* */ + /* FT_FaceRec */ + /* */ + /* FT_FACE_FLAG_SCALABLE */ + /* FT_FACE_FLAG_FIXED_SIZES */ + /* FT_FACE_FLAG_FIXED_WIDTH */ + /* FT_FACE_FLAG_HORIZONTAL */ + /* FT_FACE_FLAG_VERTICAL */ + /* FT_FACE_FLAG_SFNT */ + /* FT_FACE_FLAG_KERNING */ + /* FT_FACE_FLAG_MULTIPLE_MASTERS */ + /* FT_FACE_FLAG_GLYPH_NAMES */ + /* FT_FACE_FLAG_EXTERNAL_STREAM */ + /* FT_FACE_FLAG_FAST_GLYPHS */ + /* FT_FACE_FLAG_HINTER */ + /* */ + /* FT_STYLE_FLAG_BOLD */ + /* FT_STYLE_FLAG_ITALIC */ + /* */ + /* FT_SizeRec */ + /* FT_Size_Metrics */ + /* */ + /* FT_GlyphSlotRec */ + /* FT_Glyph_Metrics */ + /* FT_SubGlyph */ + /* */ + /* FT_Bitmap_Size */ + /* */ + /* FT_Init_FreeType */ + /* FT_Done_FreeType */ + /* */ + /* FT_New_Face */ + /* FT_Done_Face */ + /* FT_New_Memory_Face */ + /* FT_Open_Face */ + /* FT_Open_Args */ + /* FT_Parameter */ + /* FT_Attach_File */ + /* FT_Attach_Stream */ + /* */ + /* FT_Set_Char_Size */ + /* FT_Set_Pixel_Sizes */ + /* FT_Request_Size */ + /* FT_Select_Size */ + /* FT_Size_Request_Type */ + /* FT_Size_Request */ + /* FT_Set_Transform */ + /* FT_Load_Glyph */ + /* FT_Get_Char_Index */ + /* FT_Get_Name_Index */ + /* FT_Load_Char */ + /* */ + /* FT_OPEN_MEMORY */ + /* FT_OPEN_STREAM */ + /* FT_OPEN_PATHNAME */ + /* FT_OPEN_DRIVER */ + /* FT_OPEN_PARAMS */ + /* */ + /* FT_LOAD_DEFAULT */ + /* FT_LOAD_RENDER */ + /* FT_LOAD_MONOCHROME */ + /* FT_LOAD_LINEAR_DESIGN */ + /* FT_LOAD_NO_SCALE */ + /* FT_LOAD_NO_HINTING */ + /* FT_LOAD_NO_BITMAP */ + /* FT_LOAD_CROP_BITMAP */ + /* */ + /* FT_LOAD_VERTICAL_LAYOUT */ + /* FT_LOAD_IGNORE_TRANSFORM */ + /* FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH */ + /* FT_LOAD_FORCE_AUTOHINT */ + /* FT_LOAD_NO_RECURSE */ + /* FT_LOAD_PEDANTIC */ + /* */ + /* FT_LOAD_TARGET_NORMAL */ + /* FT_LOAD_TARGET_LIGHT */ + /* FT_LOAD_TARGET_MONO */ + /* FT_LOAD_TARGET_LCD */ + /* FT_LOAD_TARGET_LCD_V */ + /* */ + /* FT_Render_Glyph */ + /* FT_Render_Mode */ + /* FT_Get_Kerning */ + /* FT_Kerning_Mode */ + /* FT_Get_Track_Kerning */ + /* FT_Get_Glyph_Name */ + /* FT_Get_Postscript_Name */ + /* */ + /* FT_CharMapRec */ + /* FT_Select_Charmap */ + /* FT_Set_Charmap */ + /* FT_Get_Charmap_Index */ + /* */ + /* FT_FSTYPE_INSTALLABLE_EMBEDDING */ + /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING */ + /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING */ + /* FT_FSTYPE_EDITABLE_EMBEDDING */ + /* FT_FSTYPE_NO_SUBSETTING */ + /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY */ + /* */ + /* FT_Get_FSType_Flags */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Glyph_Metrics */ + /* */ + /* <Description> */ + /* A structure used to model the metrics of a single glyph. The */ + /* values are expressed in 26.6 fractional pixel format; if the flag */ + /* @FT_LOAD_NO_SCALE has been used while loading the glyph, values */ + /* are expressed in font units instead. */ + /* */ + /* <Fields> */ + /* width :: */ + /* The glyph's width. */ + /* */ + /* height :: */ + /* The glyph's height. */ + /* */ + /* horiBearingX :: */ + /* Left side bearing for horizontal layout. */ + /* */ + /* horiBearingY :: */ + /* Top side bearing for horizontal layout. */ + /* */ + /* horiAdvance :: */ + /* Advance width for horizontal layout. */ + /* */ + /* vertBearingX :: */ + /* Left side bearing for vertical layout. */ + /* */ + /* vertBearingY :: */ + /* Top side bearing for vertical layout. Larger positive values */ + /* mean further below the vertical glyph origin. */ + /* */ + /* vertAdvance :: */ + /* Advance height for vertical layout. Positive values mean the */ + /* glyph has a positive advance downward. */ + /* */ + /* <Note> */ + /* If not disabled with @FT_LOAD_NO_HINTING, the values represent */ + /* dimensions of the hinted glyph (in case hinting is applicable). */ + /* */ + typedef struct FT_Glyph_Metrics_ + { + FT_Pos width; + FT_Pos height; + + FT_Pos horiBearingX; + FT_Pos horiBearingY; + FT_Pos horiAdvance; + + FT_Pos vertBearingX; + FT_Pos vertBearingY; + FT_Pos vertAdvance; + + } FT_Glyph_Metrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Bitmap_Size */ + /* */ + /* <Description> */ + /* This structure models the metrics of a bitmap strike (i.e., a set */ + /* of glyphs for a given point size and resolution) in a bitmap font. */ + /* It is used for the `available_sizes' field of @FT_Face. */ + /* */ + /* <Fields> */ + /* height :: The vertical distance, in pixels, between two */ + /* consecutive baselines. It is always positive. */ + /* */ + /* width :: The average width, in pixels, of all glyphs in the */ + /* strike. */ + /* */ + /* size :: The nominal size of the strike in 26.6 fractional */ + /* points. This field is not very useful. */ + /* */ + /* x_ppem :: The horizontal ppem (nominal width) in 26.6 fractional */ + /* pixels. */ + /* */ + /* y_ppem :: The vertical ppem (nominal height) in 26.6 fractional */ + /* pixels. */ + /* */ + /* <Note> */ + /* Windows FNT: */ + /* The nominal size given in a FNT font is not reliable. Thus when */ + /* the driver finds it incorrect, it sets `size' to some calculated */ + /* values and sets `x_ppem' and `y_ppem' to the pixel width and */ + /* height given in the font, respectively. */ + /* */ + /* TrueType embedded bitmaps: */ + /* `size', `width', and `height' values are not contained in the */ + /* bitmap strike itself. They are computed from the global font */ + /* parameters. */ + /* */ + typedef struct FT_Bitmap_Size_ + { + FT_Short height; + FT_Short width; + + FT_Pos size; + + FT_Pos x_ppem; + FT_Pos y_ppem; + + } FT_Bitmap_Size; + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* O B J E C T C L A S S E S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Library */ + /* */ + /* <Description> */ + /* A handle to a FreeType library instance. Each `library' is */ + /* completely independent from the others; it is the `root' of a set */ + /* of objects like fonts, faces, sizes, etc. */ + /* */ + /* It also embeds a memory manager (see @FT_Memory), as well as a */ + /* scan-line converter object (see @FT_Raster). */ + /* */ + /* For multi-threading applications each thread should have its own */ + /* FT_Library object. */ + /* */ + /* <Note> */ + /* Library objects are normally created by @FT_Init_FreeType, and */ + /* destroyed with @FT_Done_FreeType. */ + /* */ + typedef struct FT_LibraryRec_ *FT_Library; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Module */ + /* */ + /* <Description> */ + /* A handle to a given FreeType module object. Each module can be a */ + /* font driver, a renderer, or anything else that provides services */ + /* to the formers. */ + /* */ + typedef struct FT_ModuleRec_* FT_Module; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Driver */ + /* */ + /* <Description> */ + /* A handle to a given FreeType font driver object. Each font driver */ + /* is a special module capable of creating faces from font files. */ + /* */ + typedef struct FT_DriverRec_* FT_Driver; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Renderer */ + /* */ + /* <Description> */ + /* A handle to a given FreeType renderer. A renderer is a special */ + /* module in charge of converting a glyph image to a bitmap, when */ + /* necessary. Each renderer supports a given glyph image format, and */ + /* one or more target surface depths. */ + /* */ + typedef struct FT_RendererRec_* FT_Renderer; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Face */ + /* */ + /* <Description> */ + /* A handle to a given typographic face object. A face object models */ + /* a given typeface, in a given style. */ + /* */ + /* <Note> */ + /* Each face object also owns a single @FT_GlyphSlot object, as well */ + /* as one or more @FT_Size objects. */ + /* */ + /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */ + /* a given filepathname or a custom input stream. */ + /* */ + /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */ + /* */ + /* <Also> */ + /* See @FT_FaceRec for the publicly accessible fields of a given face */ + /* object. */ + /* */ + typedef struct FT_FaceRec_* FT_Face; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Size */ + /* */ + /* <Description> */ + /* A handle to an object used to model a face scaled to a given */ + /* character size. */ + /* */ + /* <Note> */ + /* Each @FT_Face has an _active_ @FT_Size object that is used by */ + /* functions like @FT_Load_Glyph to determine the scaling */ + /* transformation which is used to load and hint glyphs and metrics. */ + /* */ + /* You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, */ + /* @FT_Request_Size or even @FT_Select_Size to change the content */ + /* (i.e., the scaling values) of the active @FT_Size. */ + /* */ + /* You can use @FT_New_Size to create additional size objects for a */ + /* given @FT_Face, but they won't be used by other functions until */ + /* you activate it through @FT_Activate_Size. Only one size can be */ + /* activated at any given time per face. */ + /* */ + /* <Also> */ + /* See @FT_SizeRec for the publicly accessible fields of a given size */ + /* object. */ + /* */ + typedef struct FT_SizeRec_* FT_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to a given `glyph slot'. A slot is a container where it */ + /* is possible to load any of the glyphs contained in its parent */ + /* face. */ + /* */ + /* In other words, each time you call @FT_Load_Glyph or */ + /* @FT_Load_Char, the slot's content is erased by the new glyph data, */ + /* i.e., the glyph's metrics, its image (bitmap or outline), and */ + /* other control information. */ + /* */ + /* <Also> */ + /* See @FT_GlyphSlotRec for the publicly accessible glyph fields. */ + /* */ + typedef struct FT_GlyphSlotRec_* FT_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_CharMap */ + /* */ + /* <Description> */ + /* A handle to a given character map. A charmap is used to translate */ + /* character codes in a given encoding into glyph indexes for its */ + /* parent's face. Some font formats may provide several charmaps per */ + /* font. */ + /* */ + /* Each face object owns zero or more charmaps, but only one of them */ + /* can be `active' and used by @FT_Get_Char_Index or @FT_Load_Char. */ + /* */ + /* The list of available charmaps in a face is available through the */ + /* `face->num_charmaps' and `face->charmaps' fields of @FT_FaceRec. */ + /* */ + /* The currently active charmap is available as `face->charmap'. */ + /* You should call @FT_Set_Charmap to change it. */ + /* */ + /* <Note> */ + /* When a new face is created (either through @FT_New_Face or */ + /* @FT_Open_Face), the library looks for a Unicode charmap within */ + /* the list and automatically activates it. */ + /* */ + /* <Also> */ + /* See @FT_CharMapRec for the publicly accessible fields of a given */ + /* character map. */ + /* */ + typedef struct FT_CharMapRec_* FT_CharMap; + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_ENC_TAG */ + /* */ + /* <Description> */ + /* This macro converts four-letter tags into an unsigned long. It is */ + /* used to define `encoding' identifiers (see @FT_Encoding). */ + /* */ + /* <Note> */ + /* Since many 16-bit compilers don't like 32-bit enumerations, you */ + /* should redefine this macro in case of problems to something like */ + /* this: */ + /* */ + /* { */ + /* #define FT_ENC_TAG( value, a, b, c, d ) value */ + /* } */ + /* */ + /* to get a simple enumeration without assigning special numbers. */ + /* */ + +#ifndef FT_ENC_TAG +#define FT_ENC_TAG( value, a, b, c, d ) \ + value = ( ( (FT_UInt32)(a) << 24 ) | \ + ( (FT_UInt32)(b) << 16 ) | \ + ( (FT_UInt32)(c) << 8 ) | \ + (FT_UInt32)(d) ) + +#endif /* FT_ENC_TAG */ + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Encoding */ + /* */ + /* <Description> */ + /* An enumeration used to specify character sets supported by */ + /* charmaps. Used in the @FT_Select_Charmap API function. */ + /* */ + /* <Note> */ + /* Despite the name, this enumeration lists specific character */ + /* repertories (i.e., charsets), and not text encoding methods (e.g., */ + /* UTF-8, UTF-16, etc.). */ + /* */ + /* Other encodings might be defined in the future. */ + /* */ + /* <Values> */ + /* FT_ENCODING_NONE :: */ + /* The encoding value~0 is reserved. */ + /* */ + /* FT_ENCODING_UNICODE :: */ + /* Corresponds to the Unicode character set. This value covers */ + /* all versions of the Unicode repertoire, including ASCII and */ + /* Latin-1. Most fonts include a Unicode charmap, but not all */ + /* of them. */ + /* */ + /* For example, if you want to access Unicode value U+1F028 (and */ + /* the font contains it), use value 0x1F028 as the input value for */ + /* @FT_Get_Char_Index. */ + /* */ + /* FT_ENCODING_MS_SYMBOL :: */ + /* Corresponds to the Microsoft Symbol encoding, used to encode */ + /* mathematical symbols in the 32..255 character code range. For */ + /* more information, see `http://www.ceviz.net/symbol.htm'. */ + /* */ + /* FT_ENCODING_SJIS :: */ + /* Corresponds to Japanese SJIS encoding. More info at */ + /* at `http://langsupport.japanreference.com/encoding.shtml'. */ + /* See note on multi-byte encodings below. */ + /* */ + /* FT_ENCODING_GB2312 :: */ + /* Corresponds to an encoding system for Simplified Chinese as used */ + /* used in mainland China. */ + /* */ + /* FT_ENCODING_BIG5 :: */ + /* Corresponds to an encoding system for Traditional Chinese as */ + /* used in Taiwan and Hong Kong. */ + /* */ + /* FT_ENCODING_WANSUNG :: */ + /* Corresponds to the Korean encoding system known as Wansung. */ + /* For more information see */ + /* `http://www.microsoft.com/typography/unicode/949.txt'. */ + /* */ + /* FT_ENCODING_JOHAB :: */ + /* The Korean standard character set (KS~C 5601-1992), which */ + /* corresponds to MS Windows code page 1361. This character set */ + /* includes all possible Hangeul character combinations. */ + /* */ + /* FT_ENCODING_ADOBE_LATIN_1 :: */ + /* Corresponds to a Latin-1 encoding as defined in a Type~1 */ + /* PostScript font. It is limited to 256 character codes. */ + /* */ + /* FT_ENCODING_ADOBE_STANDARD :: */ + /* Corresponds to the Adobe Standard encoding, as found in Type~1, */ + /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ + /* codes. */ + /* */ + /* FT_ENCODING_ADOBE_EXPERT :: */ + /* Corresponds to the Adobe Expert encoding, as found in Type~1, */ + /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ + /* codes. */ + /* */ + /* FT_ENCODING_ADOBE_CUSTOM :: */ + /* Corresponds to a custom encoding, as found in Type~1, CFF, and */ + /* OpenType/CFF fonts. It is limited to 256 character codes. */ + /* */ + /* FT_ENCODING_APPLE_ROMAN :: */ + /* Corresponds to the 8-bit Apple roman encoding. Many TrueType */ + /* and OpenType fonts contain a charmap for this encoding, since */ + /* older versions of Mac OS are able to use it. */ + /* */ + /* FT_ENCODING_OLD_LATIN_2 :: */ + /* This value is deprecated and was never used nor reported by */ + /* FreeType. Don't use or test for it. */ + /* */ + /* FT_ENCODING_MS_SJIS :: */ + /* Same as FT_ENCODING_SJIS. Deprecated. */ + /* */ + /* FT_ENCODING_MS_GB2312 :: */ + /* Same as FT_ENCODING_GB2312. Deprecated. */ + /* */ + /* FT_ENCODING_MS_BIG5 :: */ + /* Same as FT_ENCODING_BIG5. Deprecated. */ + /* */ + /* FT_ENCODING_MS_WANSUNG :: */ + /* Same as FT_ENCODING_WANSUNG. Deprecated. */ + /* */ + /* FT_ENCODING_MS_JOHAB :: */ + /* Same as FT_ENCODING_JOHAB. Deprecated. */ + /* */ + /* <Note> */ + /* By default, FreeType automatically synthesizes a Unicode charmap */ + /* for PostScript fonts, using their glyph names dictionaries. */ + /* However, it also reports the encodings defined explicitly in the */ + /* font file, for the cases when they are needed, with the Adobe */ + /* values as well. */ + /* */ + /* FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap */ + /* is neither Unicode nor ISO-8859-1 (otherwise it is set to */ + /* FT_ENCODING_UNICODE). Use @FT_Get_BDF_Charset_ID to find out */ + /* which encoding is really present. If, for example, the */ + /* `cs_registry' field is `KOI8' and the `cs_encoding' field is `R', */ + /* the font is encoded in KOI8-R. */ + /* */ + /* FT_ENCODING_NONE is always set (with a single exception) by the */ + /* winfonts driver. Use @FT_Get_WinFNT_Header and examine the */ + /* `charset' field of the @FT_WinFNT_HeaderRec structure to find out */ + /* which encoding is really present. For example, */ + /* @FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for */ + /* Russian). */ + /* */ + /* FT_ENCODING_NONE is set if `platform_id' is @TT_PLATFORM_MACINTOSH */ + /* and `encoding_id' is not @TT_MAC_ID_ROMAN (otherwise it is set to */ + /* FT_ENCODING_APPLE_ROMAN). */ + /* */ + /* If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function */ + /* @FT_Get_CMap_Language_ID to query the Mac language ID which may */ + /* be needed to be able to distinguish Apple encoding variants. See */ + /* */ + /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/README.TXT */ + /* */ + /* to get an idea how to do that. Basically, if the language ID */ + /* is~0, don't use it, otherwise subtract 1 from the language ID. */ + /* Then examine `encoding_id'. If, for example, `encoding_id' is */ + /* @TT_MAC_ID_ROMAN and the language ID (minus~1) is */ + /* `TT_MAC_LANGID_GREEK', it is the Greek encoding, not Roman. */ + /* @TT_MAC_ID_ARABIC with `TT_MAC_LANGID_FARSI' means the Farsi */ + /* variant the Arabic encoding. */ + /* */ + typedef enum FT_Encoding_ + { + FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ), + + FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ), + FT_ENC_TAG( FT_ENCODING_UNICODE, 'u', 'n', 'i', 'c' ), + + FT_ENC_TAG( FT_ENCODING_SJIS, 's', 'j', 'i', 's' ), + FT_ENC_TAG( FT_ENCODING_GB2312, 'g', 'b', ' ', ' ' ), + FT_ENC_TAG( FT_ENCODING_BIG5, 'b', 'i', 'g', '5' ), + FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ), + FT_ENC_TAG( FT_ENCODING_JOHAB, 'j', 'o', 'h', 'a' ), + + /* for backwards compatibility */ + FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS, + FT_ENCODING_MS_GB2312 = FT_ENCODING_GB2312, + FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5, + FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG, + FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB, + + FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ), + FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT, 'A', 'D', 'B', 'E' ), + FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM, 'A', 'D', 'B', 'C' ), + FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1, 'l', 'a', 't', '1' ), + + FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ), + + FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' ) + + } FT_Encoding; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_encoding_xxx */ + /* */ + /* <Description> */ + /* These constants are deprecated; use the corresponding @FT_Encoding */ + /* values instead. */ + /* */ +#define ft_encoding_none FT_ENCODING_NONE +#define ft_encoding_unicode FT_ENCODING_UNICODE +#define ft_encoding_symbol FT_ENCODING_MS_SYMBOL +#define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1 +#define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2 +#define ft_encoding_sjis FT_ENCODING_SJIS +#define ft_encoding_gb2312 FT_ENCODING_GB2312 +#define ft_encoding_big5 FT_ENCODING_BIG5 +#define ft_encoding_wansung FT_ENCODING_WANSUNG +#define ft_encoding_johab FT_ENCODING_JOHAB + +#define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD +#define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT +#define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM +#define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_CharMapRec */ + /* */ + /* <Description> */ + /* The base charmap structure. */ + /* */ + /* <Fields> */ + /* face :: A handle to the parent face object. */ + /* */ + /* encoding :: An @FT_Encoding tag identifying the charmap. Use */ + /* this with @FT_Select_Charmap. */ + /* */ + /* platform_id :: An ID number describing the platform for the */ + /* following encoding ID. This comes directly from */ + /* the TrueType specification and should be emulated */ + /* for other formats. */ + /* */ + /* encoding_id :: A platform specific encoding number. This also */ + /* comes from the TrueType specification and should be */ + /* emulated similarly. */ + /* */ + typedef struct FT_CharMapRec_ + { + FT_Face face; + FT_Encoding encoding; + FT_UShort platform_id; + FT_UShort encoding_id; + + } FT_CharMapRec; + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* B A S E O B J E C T C L A S S E S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Face_Internal */ + /* */ + /* <Description> */ + /* An opaque handle to an `FT_Face_InternalRec' structure, used to */ + /* model private data of a given @FT_Face object. */ + /* */ + /* This structure might change between releases of FreeType~2 and is */ + /* not generally available to client applications. */ + /* */ + typedef struct FT_Face_InternalRec_* FT_Face_Internal; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_FaceRec */ + /* */ + /* <Description> */ + /* FreeType root face class structure. A face object models a */ + /* typeface in a font file. */ + /* */ + /* <Fields> */ + /* num_faces :: The number of faces in the font file. Some */ + /* font formats can have multiple faces in */ + /* a font file. */ + /* */ + /* face_index :: The index of the face in the font file. It */ + /* is set to~0 if there is only one face in */ + /* the font file. */ + /* */ + /* face_flags :: A set of bit flags that give important */ + /* information about the face; see */ + /* @FT_FACE_FLAG_XXX for the details. */ + /* */ + /* style_flags :: A set of bit flags indicating the style of */ + /* the face; see @FT_STYLE_FLAG_XXX for the */ + /* details. */ + /* */ + /* num_glyphs :: The number of glyphs in the face. If the */ + /* face is scalable and has sbits (see */ + /* `num_fixed_sizes'), it is set to the number */ + /* of outline glyphs. */ + /* */ + /* For CID-keyed fonts, this value gives the */ + /* highest CID used in the font. */ + /* */ + /* family_name :: The face's family name. This is an ASCII */ + /* string, usually in English, which describes */ + /* the typeface's family (like `Times New */ + /* Roman', `Bodoni', `Garamond', etc). This */ + /* is a least common denominator used to list */ + /* fonts. Some formats (TrueType & OpenType) */ + /* provide localized and Unicode versions of */ + /* this string. Applications should use the */ + /* format specific interface to access them. */ + /* Can be NULL (e.g., in fonts embedded in a */ + /* PDF file). */ + /* */ + /* style_name :: The face's style name. This is an ASCII */ + /* string, usually in English, which describes */ + /* the typeface's style (like `Italic', */ + /* `Bold', `Condensed', etc). Not all font */ + /* formats provide a style name, so this field */ + /* is optional, and can be set to NULL. As */ + /* for `family_name', some formats provide */ + /* localized and Unicode versions of this */ + /* string. Applications should use the format */ + /* specific interface to access them. */ + /* */ + /* num_fixed_sizes :: The number of bitmap strikes in the face. */ + /* Even if the face is scalable, there might */ + /* still be bitmap strikes, which are called */ + /* `sbits' in that case. */ + /* */ + /* available_sizes :: An array of @FT_Bitmap_Size for all bitmap */ + /* strikes in the face. It is set to NULL if */ + /* there is no bitmap strike. */ + /* */ + /* num_charmaps :: The number of charmaps in the face. */ + /* */ + /* charmaps :: An array of the charmaps of the face. */ + /* */ + /* generic :: A field reserved for client uses. See the */ + /* @FT_Generic type description. */ + /* */ + /* bbox :: The font bounding box. Coordinates are */ + /* expressed in font units (see */ + /* `units_per_EM'). The box is large enough */ + /* to contain any glyph from the font. Thus, */ + /* `bbox.yMax' can be seen as the `maximal */ + /* ascender', and `bbox.yMin' as the `minimal */ + /* descender'. Only relevant for scalable */ + /* formats. */ + /* */ + /* Note that the bounding box might be off by */ + /* (at least) one pixel for hinted fonts. See */ + /* @FT_Size_Metrics for further discussion. */ + /* */ + /* units_per_EM :: The number of font units per EM square for */ + /* this face. This is typically 2048 for */ + /* TrueType fonts, and 1000 for Type~1 fonts. */ + /* Only relevant for scalable formats. */ + /* */ + /* ascender :: The typographic ascender of the face, */ + /* expressed in font units. For font formats */ + /* not having this information, it is set to */ + /* `bbox.yMax'. Only relevant for scalable */ + /* formats. */ + /* */ + /* descender :: The typographic descender of the face, */ + /* expressed in font units. For font formats */ + /* not having this information, it is set to */ + /* `bbox.yMin'. Note that this field is */ + /* usually negative. Only relevant for */ + /* scalable formats. */ + /* */ + /* height :: The height is the vertical distance */ + /* between two consecutive baselines, */ + /* expressed in font units. It is always */ + /* positive. Only relevant for scalable */ + /* formats. */ + /* */ + /* max_advance_width :: The maximal advance width, in font units, */ + /* for all glyphs in this face. This can be */ + /* used to make word wrapping computations */ + /* faster. Only relevant for scalable */ + /* formats. */ + /* */ + /* max_advance_height :: The maximal advance height, in font units, */ + /* for all glyphs in this face. This is only */ + /* relevant for vertical layouts, and is set */ + /* to `height' for fonts that do not provide */ + /* vertical metrics. Only relevant for */ + /* scalable formats. */ + /* */ + /* underline_position :: The position, in font units, of the */ + /* underline line for this face. It is the */ + /* center of the underlining stem. Only */ + /* relevant for scalable formats. */ + /* */ + /* underline_thickness :: The thickness, in font units, of the */ + /* underline for this face. Only relevant for */ + /* scalable formats. */ + /* */ + /* glyph :: The face's associated glyph slot(s). */ + /* */ + /* size :: The current active size for this face. */ + /* */ + /* charmap :: The current active charmap for this face. */ + /* */ + /* <Note> */ + /* Fields may be changed after a call to @FT_Attach_File or */ + /* @FT_Attach_Stream. */ + /* */ + typedef struct FT_FaceRec_ + { + FT_Long num_faces; + FT_Long face_index; + + FT_Long face_flags; + FT_Long style_flags; + + FT_Long num_glyphs; + + FT_String* family_name; + FT_String* style_name; + + FT_Int num_fixed_sizes; + FT_Bitmap_Size* available_sizes; + + FT_Int num_charmaps; + FT_CharMap* charmaps; + + FT_Generic generic; + + /*# The following member variables (down to `underline_thickness') */ + /*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size */ + /*# for bitmap fonts. */ + FT_BBox bbox; + + FT_UShort units_per_EM; + FT_Short ascender; + FT_Short descender; + FT_Short height; + + FT_Short max_advance_width; + FT_Short max_advance_height; + + FT_Short underline_position; + FT_Short underline_thickness; + + FT_GlyphSlot glyph; + FT_Size size; + FT_CharMap charmap; + + /*@private begin */ + + FT_Driver driver; + FT_Memory memory; + FT_Stream stream; + + FT_ListRec sizes_list; + + FT_Generic autohint; + void* extensions; + + FT_Face_Internal internal; + + /*@private end */ + + } FT_FaceRec; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_FACE_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit flags used in the `face_flags' field of the */ + /* @FT_FaceRec structure. They inform client applications of */ + /* properties of the corresponding face. */ + /* */ + /* <Values> */ + /* FT_FACE_FLAG_SCALABLE :: */ + /* Indicates that the face contains outline glyphs. This doesn't */ + /* prevent bitmap strikes, i.e., a face can have both this and */ + /* and @FT_FACE_FLAG_FIXED_SIZES set. */ + /* */ + /* FT_FACE_FLAG_FIXED_SIZES :: */ + /* Indicates that the face contains bitmap strikes. See also the */ + /* `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec. */ + /* */ + /* FT_FACE_FLAG_FIXED_WIDTH :: */ + /* Indicates that the face contains fixed-width characters (like */ + /* Courier, Lucido, MonoType, etc.). */ + /* */ + /* FT_FACE_FLAG_SFNT :: */ + /* Indicates that the face uses the `sfnt' storage scheme. For */ + /* now, this means TrueType and OpenType. */ + /* */ + /* FT_FACE_FLAG_HORIZONTAL :: */ + /* Indicates that the face contains horizontal glyph metrics. This */ + /* should be set for all common formats. */ + /* */ + /* FT_FACE_FLAG_VERTICAL :: */ + /* Indicates that the face contains vertical glyph metrics. This */ + /* is only available in some formats, not all of them. */ + /* */ + /* FT_FACE_FLAG_KERNING :: */ + /* Indicates that the face contains kerning information. If set, */ + /* the kerning distance can be retrieved through the function */ + /* @FT_Get_Kerning. Otherwise the function always return the */ + /* vector (0,0). Note that FreeType doesn't handle kerning data */ + /* from the `GPOS' table (as present in some OpenType fonts). */ + /* */ + /* FT_FACE_FLAG_FAST_GLYPHS :: */ + /* THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT. */ + /* */ + /* FT_FACE_FLAG_MULTIPLE_MASTERS :: */ + /* Indicates that the font contains multiple masters and is capable */ + /* of interpolating between them. See the multiple-masters */ + /* specific API for details. */ + /* */ + /* FT_FACE_FLAG_GLYPH_NAMES :: */ + /* Indicates that the font contains glyph names that can be */ + /* retrieved through @FT_Get_Glyph_Name. Note that some TrueType */ + /* fonts contain broken glyph name tables. Use the function */ + /* @FT_Has_PS_Glyph_Names when needed. */ + /* */ + /* FT_FACE_FLAG_EXTERNAL_STREAM :: */ + /* Used internally by FreeType to indicate that a face's stream was */ + /* provided by the client application and should not be destroyed */ + /* when @FT_Done_Face is called. Don't read or test this flag. */ + /* */ + /* FT_FACE_FLAG_HINTER :: */ + /* Set if the font driver has a hinting machine of its own. For */ + /* example, with TrueType fonts, it makes sense to use data from */ + /* the SFNT `gasp' table only if the native TrueType hinting engine */ + /* (with the bytecode interpreter) is available and active. */ + /* */ + /* FT_FACE_FLAG_CID_KEYED :: */ + /* Set if the font is CID-keyed. In that case, the font is not */ + /* accessed by glyph indices but by CID values. For subsetted */ + /* CID-keyed fonts this has the consequence that not all index */ + /* values are a valid argument to FT_Load_Glyph. Only the CID */ + /* values for which corresponding glyphs in the subsetted font */ + /* exist make FT_Load_Glyph return successfully; in all other cases */ + /* you get an `FT_Err_Invalid_Argument' error. */ + /* */ + /* Note that CID-keyed fonts which are in an SFNT wrapper don't */ + /* have this flag set since the glyphs are accessed in the normal */ + /* way (using contiguous indices); the `CID-ness' isn't visible to */ + /* the application. */ + /* */ + /* FT_FACE_FLAG_TRICKY :: */ + /* Set if the font is `tricky', this is, it always needs the */ + /* font format's native hinting engine to get a reasonable result. */ + /* A typical example is the Chinese font `mingli.ttf' which uses */ + /* TrueType bytecode instructions to move and scale all of its */ + /* subglyphs. */ + /* */ + /* It is not possible to autohint such fonts using */ + /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */ + /* @FT_LOAD_NO_HINTING. You have to set both @FT_LOAD_NO_HINTING */ + /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */ + /* probably never want this except for demonstration purposes. */ + /* */ + /* Currently, there are about a dozen TrueType fonts in the list of */ + /* tricky fonts; they are hard-coded in file `ttobjs.c'. */ + /* */ +#define FT_FACE_FLAG_SCALABLE ( 1L << 0 ) +#define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 ) +#define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 ) +#define FT_FACE_FLAG_SFNT ( 1L << 3 ) +#define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 ) +#define FT_FACE_FLAG_VERTICAL ( 1L << 5 ) +#define FT_FACE_FLAG_KERNING ( 1L << 6 ) +#define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 ) +#define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 ) +#define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 ) +#define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 ) +#define FT_FACE_FLAG_HINTER ( 1L << 11 ) +#define FT_FACE_FLAG_CID_KEYED ( 1L << 12 ) +#define FT_FACE_FLAG_TRICKY ( 1L << 13 ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_HORIZONTAL( face ) + * + * @description: + * A macro that returns true whenever a face object contains + * horizontal metrics (this is true for all font formats though). + * + * @also: + * @FT_HAS_VERTICAL can be used to check for vertical metrics. + * + */ +#define FT_HAS_HORIZONTAL( face ) \ + ( face->face_flags & FT_FACE_FLAG_HORIZONTAL ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_VERTICAL( face ) + * + * @description: + * A macro that returns true whenever a face object contains vertical + * metrics. + * + */ +#define FT_HAS_VERTICAL( face ) \ + ( face->face_flags & FT_FACE_FLAG_VERTICAL ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_KERNING( face ) + * + * @description: + * A macro that returns true whenever a face object contains kerning + * data that can be accessed with @FT_Get_Kerning. + * + */ +#define FT_HAS_KERNING( face ) \ + ( face->face_flags & FT_FACE_FLAG_KERNING ) + + + /************************************************************************* + * + * @macro: + * FT_IS_SCALABLE( face ) + * + * @description: + * A macro that returns true whenever a face object contains a scalable + * font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF, + * and PFR font formats. + * + */ +#define FT_IS_SCALABLE( face ) \ + ( face->face_flags & FT_FACE_FLAG_SCALABLE ) + + + /************************************************************************* + * + * @macro: + * FT_IS_SFNT( face ) + * + * @description: + * A macro that returns true whenever a face object contains a font + * whose format is based on the SFNT storage scheme. This usually + * means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded + * bitmap fonts. + * + * If this macro is true, all functions defined in @FT_SFNT_NAMES_H and + * @FT_TRUETYPE_TABLES_H are available. + * + */ +#define FT_IS_SFNT( face ) \ + ( face->face_flags & FT_FACE_FLAG_SFNT ) + + + /************************************************************************* + * + * @macro: + * FT_IS_FIXED_WIDTH( face ) + * + * @description: + * A macro that returns true whenever a face object contains a font face + * that contains fixed-width (or `monospace', `fixed-pitch', etc.) + * glyphs. + * + */ +#define FT_IS_FIXED_WIDTH( face ) \ + ( face->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_FIXED_SIZES( face ) + * + * @description: + * A macro that returns true whenever a face object contains some + * embedded bitmaps. See the `available_sizes' field of the + * @FT_FaceRec structure. + * + */ +#define FT_HAS_FIXED_SIZES( face ) \ + ( face->face_flags & FT_FACE_FLAG_FIXED_SIZES ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_FAST_GLYPHS( face ) + * + * @description: + * Deprecated. + * + */ +#define FT_HAS_FAST_GLYPHS( face ) 0 + + + /************************************************************************* + * + * @macro: + * FT_HAS_GLYPH_NAMES( face ) + * + * @description: + * A macro that returns true whenever a face object contains some glyph + * names that can be accessed through @FT_Get_Glyph_Name. + * + */ +#define FT_HAS_GLYPH_NAMES( face ) \ + ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_MULTIPLE_MASTERS( face ) + * + * @description: + * A macro that returns true whenever a face object contains some + * multiple masters. The functions provided by @FT_MULTIPLE_MASTERS_H + * are then available to choose the exact design you want. + * + */ +#define FT_HAS_MULTIPLE_MASTERS( face ) \ + ( face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) + + + /************************************************************************* + * + * @macro: + * FT_IS_CID_KEYED( face ) + * + * @description: + * A macro that returns true whenever a face object contains a CID-keyed + * font. See the discussion of @FT_FACE_FLAG_CID_KEYED for more + * details. + * + * If this macro is true, all functions defined in @FT_CID_H are + * available. + * + */ +#define FT_IS_CID_KEYED( face ) \ + ( face->face_flags & FT_FACE_FLAG_CID_KEYED ) + + + /************************************************************************* + * + * @macro: + * FT_IS_TRICKY( face ) + * + * @description: + * A macro that returns true whenever a face represents a `tricky' font. + * See the discussion of @FT_FACE_FLAG_TRICKY for more details. + * + */ +#define FT_IS_TRICKY( face ) \ + ( face->face_flags & FT_FACE_FLAG_TRICKY ) + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* FT_STYLE_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit-flags used to indicate the style of a given face. */ + /* These are used in the `style_flags' field of @FT_FaceRec. */ + /* */ + /* <Values> */ + /* FT_STYLE_FLAG_ITALIC :: */ + /* Indicates that a given face style is italic or oblique. */ + /* */ + /* FT_STYLE_FLAG_BOLD :: */ + /* Indicates that a given face is bold. */ + /* */ + /* <Note> */ + /* The style information as provided by FreeType is very basic. More */ + /* details are beyond the scope and should be done on a higher level */ + /* (for example, by analyzing various fields of the `OS/2' table in */ + /* SFNT based fonts). */ + /* */ +#define FT_STYLE_FLAG_ITALIC ( 1 << 0 ) +#define FT_STYLE_FLAG_BOLD ( 1 << 1 ) + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Size_Internal */ + /* */ + /* <Description> */ + /* An opaque handle to an `FT_Size_InternalRec' structure, used to */ + /* model private data of a given @FT_Size object. */ + /* */ + typedef struct FT_Size_InternalRec_* FT_Size_Internal; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_Metrics */ + /* */ + /* <Description> */ + /* The size metrics structure gives the metrics of a size object. */ + /* */ + /* <Fields> */ + /* x_ppem :: The width of the scaled EM square in pixels, hence */ + /* the term `ppem' (pixels per EM). It is also */ + /* referred to as `nominal width'. */ + /* */ + /* y_ppem :: The height of the scaled EM square in pixels, */ + /* hence the term `ppem' (pixels per EM). It is also */ + /* referred to as `nominal height'. */ + /* */ + /* x_scale :: A 16.16 fractional scaling value used to convert */ + /* horizontal metrics from font units to 26.6 */ + /* fractional pixels. Only relevant for scalable */ + /* font formats. */ + /* */ + /* y_scale :: A 16.16 fractional scaling value used to convert */ + /* vertical metrics from font units to 26.6 */ + /* fractional pixels. Only relevant for scalable */ + /* font formats. */ + /* */ + /* ascender :: The ascender in 26.6 fractional pixels. See */ + /* @FT_FaceRec for the details. */ + /* */ + /* descender :: The descender in 26.6 fractional pixels. See */ + /* @FT_FaceRec for the details. */ + /* */ + /* height :: The height in 26.6 fractional pixels. See */ + /* @FT_FaceRec for the details. */ + /* */ + /* max_advance :: The maximal advance width in 26.6 fractional */ + /* pixels. See @FT_FaceRec for the details. */ + /* */ + /* <Note> */ + /* The scaling values, if relevant, are determined first during a */ + /* size changing operation. The remaining fields are then set by the */ + /* driver. For scalable formats, they are usually set to scaled */ + /* values of the corresponding fields in @FT_FaceRec. */ + /* */ + /* Note that due to glyph hinting, these values might not be exact */ + /* for certain fonts. Thus they must be treated as unreliable */ + /* with an error margin of at least one pixel! */ + /* */ + /* Indeed, the only way to get the exact metrics is to render _all_ */ + /* glyphs. As this would be a definite performance hit, it is up to */ + /* client applications to perform such computations. */ + /* */ + /* The FT_Size_Metrics structure is valid for bitmap fonts also. */ + /* */ + typedef struct FT_Size_Metrics_ + { + FT_UShort x_ppem; /* horizontal pixels per EM */ + FT_UShort y_ppem; /* vertical pixels per EM */ + + FT_Fixed x_scale; /* scaling values used to convert font */ + FT_Fixed y_scale; /* units to 26.6 fractional pixels */ + + FT_Pos ascender; /* ascender in 26.6 frac. pixels */ + FT_Pos descender; /* descender in 26.6 frac. pixels */ + FT_Pos height; /* text height in 26.6 frac. pixels */ + FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */ + + } FT_Size_Metrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_SizeRec */ + /* */ + /* <Description> */ + /* FreeType root size class structure. A size object models a face */ + /* object at a given size. */ + /* */ + /* <Fields> */ + /* face :: Handle to the parent face object. */ + /* */ + /* generic :: A typeless pointer, which is unused by the FreeType */ + /* library or any of its drivers. It can be used by */ + /* client applications to link their own data to each size */ + /* object. */ + /* */ + /* metrics :: Metrics for this size object. This field is read-only. */ + /* */ + typedef struct FT_SizeRec_ + { + FT_Face face; /* parent face object */ + FT_Generic generic; /* generic pointer for client uses */ + FT_Size_Metrics metrics; /* size metrics */ + FT_Size_Internal internal; + + } FT_SizeRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_SubGlyph */ + /* */ + /* <Description> */ + /* The subglyph structure is an internal object used to describe */ + /* subglyphs (for example, in the case of composites). */ + /* */ + /* <Note> */ + /* The subglyph implementation is not part of the high-level API, */ + /* hence the forward structure declaration. */ + /* */ + /* You can however retrieve subglyph information with */ + /* @FT_Get_SubGlyph_Info. */ + /* */ + typedef struct FT_SubGlyphRec_* FT_SubGlyph; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Slot_Internal */ + /* */ + /* <Description> */ + /* An opaque handle to an `FT_Slot_InternalRec' structure, used to */ + /* model private data of a given @FT_GlyphSlot object. */ + /* */ + typedef struct FT_Slot_InternalRec_* FT_Slot_Internal; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_GlyphSlotRec */ + /* */ + /* <Description> */ + /* FreeType root glyph slot class structure. A glyph slot is a */ + /* container where individual glyphs can be loaded, be they in */ + /* outline or bitmap format. */ + /* */ + /* <Fields> */ + /* library :: A handle to the FreeType library instance */ + /* this slot belongs to. */ + /* */ + /* face :: A handle to the parent face object. */ + /* */ + /* next :: In some cases (like some font tools), several */ + /* glyph slots per face object can be a good */ + /* thing. As this is rare, the glyph slots are */ + /* listed through a direct, single-linked list */ + /* using its `next' field. */ + /* */ + /* generic :: A typeless pointer which is unused by the */ + /* FreeType library or any of its drivers. It */ + /* can be used by client applications to link */ + /* their own data to each glyph slot object. */ + /* */ + /* metrics :: The metrics of the last loaded glyph in the */ + /* slot. The returned values depend on the last */ + /* load flags (see the @FT_Load_Glyph API */ + /* function) and can be expressed either in 26.6 */ + /* fractional pixels or font units. */ + /* */ + /* Note that even when the glyph image is */ + /* transformed, the metrics are not. */ + /* */ + /* linearHoriAdvance :: The advance width of the unhinted glyph. */ + /* Its value is expressed in 16.16 fractional */ + /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ + /* when loading the glyph. This field can be */ + /* important to perform correct WYSIWYG layout. */ + /* Only relevant for outline glyphs. */ + /* */ + /* linearVertAdvance :: The advance height of the unhinted glyph. */ + /* Its value is expressed in 16.16 fractional */ + /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ + /* when loading the glyph. This field can be */ + /* important to perform correct WYSIWYG layout. */ + /* Only relevant for outline glyphs. */ + /* */ + /* advance :: This shorthand is, depending on */ + /* @FT_LOAD_IGNORE_TRANSFORM, the transformed */ + /* advance width for the glyph (in 26.6 */ + /* fractional pixel format). As specified with */ + /* @FT_LOAD_VERTICAL_LAYOUT, it uses either the */ + /* `horiAdvance' or the `vertAdvance' value of */ + /* `metrics' field. */ + /* */ + /* format :: This field indicates the format of the image */ + /* contained in the glyph slot. Typically */ + /* @FT_GLYPH_FORMAT_BITMAP, */ + /* @FT_GLYPH_FORMAT_OUTLINE, or */ + /* @FT_GLYPH_FORMAT_COMPOSITE, but others are */ + /* possible. */ + /* */ + /* bitmap :: This field is used as a bitmap descriptor */ + /* when the slot format is */ + /* @FT_GLYPH_FORMAT_BITMAP. Note that the */ + /* address and content of the bitmap buffer can */ + /* change between calls of @FT_Load_Glyph and a */ + /* few other functions. */ + /* */ + /* bitmap_left :: This is the bitmap's left bearing expressed */ + /* in integer pixels. Of course, this is only */ + /* valid if the format is */ + /* @FT_GLYPH_FORMAT_BITMAP. */ + /* */ + /* bitmap_top :: This is the bitmap's top bearing expressed in */ + /* integer pixels. Remember that this is the */ + /* distance from the baseline to the top-most */ + /* glyph scanline, upwards y~coordinates being */ + /* *positive*. */ + /* */ + /* outline :: The outline descriptor for the current glyph */ + /* image if its format is */ + /* @FT_GLYPH_FORMAT_OUTLINE. Once a glyph is */ + /* loaded, `outline' can be transformed, */ + /* distorted, embolded, etc. However, it must */ + /* not be freed. */ + /* */ + /* num_subglyphs :: The number of subglyphs in a composite glyph. */ + /* This field is only valid for the composite */ + /* glyph format that should normally only be */ + /* loaded with the @FT_LOAD_NO_RECURSE flag. */ + /* For now this is internal to FreeType. */ + /* */ + /* subglyphs :: An array of subglyph descriptors for */ + /* composite glyphs. There are `num_subglyphs' */ + /* elements in there. Currently internal to */ + /* FreeType. */ + /* */ + /* control_data :: Certain font drivers can also return the */ + /* control data for a given glyph image (e.g. */ + /* TrueType bytecode, Type~1 charstrings, etc.). */ + /* This field is a pointer to such data. */ + /* */ + /* control_len :: This is the length in bytes of the control */ + /* data. */ + /* */ + /* other :: Really wicked formats can use this pointer to */ + /* present their own glyph image to client */ + /* applications. Note that the application */ + /* needs to know about the image format. */ + /* */ + /* lsb_delta :: The difference between hinted and unhinted */ + /* left side bearing while autohinting is */ + /* active. Zero otherwise. */ + /* */ + /* rsb_delta :: The difference between hinted and unhinted */ + /* right side bearing while autohinting is */ + /* active. Zero otherwise. */ + /* */ + /* <Note> */ + /* If @FT_Load_Glyph is called with default flags (see */ + /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */ + /* its native format (e.g., an outline glyph for TrueType and Type~1 */ + /* formats). */ + /* */ + /* This image can later be converted into a bitmap by calling */ + /* @FT_Render_Glyph. This function finds the current renderer for */ + /* the native image's format, then invokes it. */ + /* */ + /* The renderer is in charge of transforming the native image through */ + /* the slot's face transformation fields, then converting it into a */ + /* bitmap that is returned in `slot->bitmap'. */ + /* */ + /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */ + /* to specify the position of the bitmap relative to the current pen */ + /* position (e.g., coordinates (0,0) on the baseline). Of course, */ + /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */ + /* */ + /* <Note> */ + /* Here a small pseudo code fragment which shows how to use */ + /* `lsb_delta' and `rsb_delta': */ + /* */ + /* { */ + /* FT_Pos origin_x = 0; */ + /* FT_Pos prev_rsb_delta = 0; */ + /* */ + /* */ + /* for all glyphs do */ + /* <compute kern between current and previous glyph and add it to */ + /* `origin_x'> */ + /* */ + /* <load glyph with `FT_Load_Glyph'> */ + /* */ + /* if ( prev_rsb_delta - face->glyph->lsb_delta >= 32 ) */ + /* origin_x -= 64; */ + /* else if ( prev_rsb_delta - face->glyph->lsb_delta < -32 ) */ + /* origin_x += 64; */ + /* */ + /* prev_rsb_delta = face->glyph->rsb_delta; */ + /* */ + /* <save glyph image, or render glyph, or ...> */ + /* */ + /* origin_x += face->glyph->advance.x; */ + /* endfor */ + /* } */ + /* */ + typedef struct FT_GlyphSlotRec_ + { + FT_Library library; + FT_Face face; + FT_GlyphSlot next; + FT_UInt reserved; /* retained for binary compatibility */ + FT_Generic generic; + + FT_Glyph_Metrics metrics; + FT_Fixed linearHoriAdvance; + FT_Fixed linearVertAdvance; + FT_Vector advance; + + FT_Glyph_Format format; + + FT_Bitmap bitmap; + FT_Int bitmap_left; + FT_Int bitmap_top; + + FT_Outline outline; + + FT_UInt num_subglyphs; + FT_SubGlyph subglyphs; + + void* control_data; + long control_len; + + FT_Pos lsb_delta; + FT_Pos rsb_delta; + + void* other; + + FT_Slot_Internal internal; + + } FT_GlyphSlotRec; + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* F U N C T I O N S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Init_FreeType */ + /* */ + /* <Description> */ + /* Initialize a new FreeType library object. The set of modules */ + /* that are registered by this function is determined at build time. */ + /* */ + /* <Output> */ + /* alibrary :: A handle to a new library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* In case you want to provide your own memory allocating routines, */ + /* use @FT_New_Library instead, followed by a call to */ + /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */ + /* */ + FT_EXPORT( FT_Error ) + FT_Init_FreeType( FT_Library *alibrary ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_FreeType */ + /* */ + /* <Description> */ + /* Destroy a given FreeType library object and all of its children, */ + /* including resources, drivers, faces, sizes, etc. */ + /* */ + /* <Input> */ + /* library :: A handle to the target library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_FreeType( FT_Library library ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_OPEN_XXX */ + /* */ + /* <Description> */ + /* A list of bit-field constants used within the `flags' field of the */ + /* @FT_Open_Args structure. */ + /* */ + /* <Values> */ + /* FT_OPEN_MEMORY :: This is a memory-based stream. */ + /* */ + /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */ + /* */ + /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */ + /* name. */ + /* */ + /* FT_OPEN_DRIVER :: Use the `driver' field. */ + /* */ + /* FT_OPEN_PARAMS :: Use the `num_params' and `params' fields. */ + /* */ + /* ft_open_memory :: Deprecated; use @FT_OPEN_MEMORY instead. */ + /* */ + /* ft_open_stream :: Deprecated; use @FT_OPEN_STREAM instead. */ + /* */ + /* ft_open_pathname :: Deprecated; use @FT_OPEN_PATHNAME instead. */ + /* */ + /* ft_open_driver :: Deprecated; use @FT_OPEN_DRIVER instead. */ + /* */ + /* ft_open_params :: Deprecated; use @FT_OPEN_PARAMS instead. */ + /* */ + /* <Note> */ + /* The `FT_OPEN_MEMORY', `FT_OPEN_STREAM', and `FT_OPEN_PATHNAME' */ + /* flags are mutually exclusive. */ + /* */ +#define FT_OPEN_MEMORY 0x1 +#define FT_OPEN_STREAM 0x2 +#define FT_OPEN_PATHNAME 0x4 +#define FT_OPEN_DRIVER 0x8 +#define FT_OPEN_PARAMS 0x10 + +#define ft_open_memory FT_OPEN_MEMORY /* deprecated */ +#define ft_open_stream FT_OPEN_STREAM /* deprecated */ +#define ft_open_pathname FT_OPEN_PATHNAME /* deprecated */ +#define ft_open_driver FT_OPEN_DRIVER /* deprecated */ +#define ft_open_params FT_OPEN_PARAMS /* deprecated */ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Parameter */ + /* */ + /* <Description> */ + /* A simple structure used to pass more or less generic parameters to */ + /* @FT_Open_Face. */ + /* */ + /* <Fields> */ + /* tag :: A four-byte identification tag. */ + /* */ + /* data :: A pointer to the parameter data. */ + /* */ + /* <Note> */ + /* The ID and function of parameters are driver-specific. See the */ + /* various FT_PARAM_TAG_XXX flags for more information. */ + /* */ + typedef struct FT_Parameter_ + { + FT_ULong tag; + FT_Pointer data; + + } FT_Parameter; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Open_Args */ + /* */ + /* <Description> */ + /* A structure used to indicate how to open a new font file or */ + /* stream. A pointer to such a structure can be used as a parameter */ + /* for the functions @FT_Open_Face and @FT_Attach_Stream. */ + /* */ + /* <Fields> */ + /* flags :: A set of bit flags indicating how to use the */ + /* structure. */ + /* */ + /* memory_base :: The first byte of the file in memory. */ + /* */ + /* memory_size :: The size in bytes of the file in memory. */ + /* */ + /* pathname :: A pointer to an 8-bit file pathname. */ + /* */ + /* stream :: A handle to a source stream object. */ + /* */ + /* driver :: This field is exclusively used by @FT_Open_Face; */ + /* it simply specifies the font driver to use to open */ + /* the face. If set to~0, FreeType tries to load the */ + /* face with each one of the drivers in its list. */ + /* */ + /* num_params :: The number of extra parameters. */ + /* */ + /* params :: Extra parameters passed to the font driver when */ + /* opening a new face. */ + /* */ + /* <Note> */ + /* The stream type is determined by the contents of `flags' which */ + /* are tested in the following order by @FT_Open_Face: */ + /* */ + /* If the `FT_OPEN_MEMORY' bit is set, assume that this is a */ + /* memory file of `memory_size' bytes, located at `memory_address'. */ + /* The data are are not copied, and the client is responsible for */ + /* releasing and destroying them _after_ the corresponding call to */ + /* @FT_Done_Face. */ + /* */ + /* Otherwise, if the `FT_OPEN_STREAM' bit is set, assume that a */ + /* custom input stream `stream' is used. */ + /* */ + /* Otherwise, if the `FT_OPEN_PATHNAME' bit is set, assume that this */ + /* is a normal file and use `pathname' to open it. */ + /* */ + /* If the `FT_OPEN_DRIVER' bit is set, @FT_Open_Face only tries to */ + /* open the file with the driver whose handler is in `driver'. */ + /* */ + /* If the `FT_OPEN_PARAMS' bit is set, the parameters given by */ + /* `num_params' and `params' is used. They are ignored otherwise. */ + /* */ + /* Ideally, both the `pathname' and `params' fields should be tagged */ + /* as `const'; this is missing for API backwards compatibility. In */ + /* other words, applications should treat them as read-only. */ + /* */ + typedef struct FT_Open_Args_ + { + FT_UInt flags; + const FT_Byte* memory_base; + FT_Long memory_size; + FT_String* pathname; + FT_Stream stream; + FT_Module driver; + FT_Int num_params; + FT_Parameter* params; + + } FT_Open_Args; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face */ + /* */ + /* <Description> */ + /* This function calls @FT_Open_Face to open a font by its pathname. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* pathname :: A path to the font file. */ + /* */ + /* face_index :: The index of the face within the font. The first */ + /* face has index~0. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. If `face_index' is */ + /* greater than or equal to zero, it must be non-NULL. */ + /* See @FT_Open_Face for more details. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face( FT_Library library, + const char* filepathname, + FT_Long face_index, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Memory_Face */ + /* */ + /* <Description> */ + /* This function calls @FT_Open_Face to open a font which has been */ + /* loaded into memory. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* file_base :: A pointer to the beginning of the font data. */ + /* */ + /* file_size :: The size of the memory chunk used by the font data. */ + /* */ + /* face_index :: The index of the face within the font. The first */ + /* face has index~0. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. If `face_index' is */ + /* greater than or equal to zero, it must be non-NULL. */ + /* See @FT_Open_Face for more details. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* You must not deallocate the memory before calling @FT_Done_Face. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Memory_Face( FT_Library library, + const FT_Byte* file_base, + FT_Long file_size, + FT_Long face_index, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Open_Face */ + /* */ + /* <Description> */ + /* Create a face object from a given resource described by */ + /* @FT_Open_Args. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* args :: A pointer to an `FT_Open_Args' structure which must */ + /* be filled by the caller. */ + /* */ + /* face_index :: The index of the face within the font. The first */ + /* face has index~0. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. If `face_index' is */ + /* greater than or equal to zero, it must be non-NULL. */ + /* See note below. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Unlike FreeType 1.x, this function automatically creates a glyph */ + /* slot for the face object which can be accessed directly through */ + /* `face->glyph'. */ + /* */ + /* FT_Open_Face can be used to quickly check whether the font */ + /* format of a given font resource is supported by FreeType. If the */ + /* `face_index' field is negative, the function's return value is~0 */ + /* if the font format is recognized, or non-zero otherwise; */ + /* the function returns a more or less empty face handle in `*aface' */ + /* (if `aface' isn't NULL). The only useful field in this special */ + /* case is `face->num_faces' which gives the number of faces within */ + /* the font file. After examination, the returned @FT_Face structure */ + /* should be deallocated with a call to @FT_Done_Face. */ + /* */ + /* Each new face object created with this function also owns a */ + /* default @FT_Size object, accessible as `face->size'. */ + /* */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Face. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Open_Face( FT_Library library, + const FT_Open_Args* args, + FT_Long face_index, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Attach_File */ + /* */ + /* <Description> */ + /* This function calls @FT_Attach_Stream to attach a file. */ + /* */ + /* <InOut> */ + /* face :: The target face object. */ + /* */ + /* <Input> */ + /* filepathname :: The pathname. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Attach_File( FT_Face face, + const char* filepathname ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Attach_Stream */ + /* */ + /* <Description> */ + /* `Attach' data to a face object. Normally, this is used to read */ + /* additional information for the face object. For example, you can */ + /* attach an AFM file that comes with a Type~1 font to get the */ + /* kerning values and other metrics. */ + /* */ + /* <InOut> */ + /* face :: The target face object. */ + /* */ + /* <Input> */ + /* parameters :: A pointer to @FT_Open_Args which must be filled by */ + /* the caller. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The meaning of the `attach' (i.e., what really happens when the */ + /* new file is read) is not fixed by FreeType itself. It really */ + /* depends on the font format (and thus the font driver). */ + /* */ + /* Client applications are expected to know what they are doing */ + /* when invoking this function. Most drivers simply do not implement */ + /* file attachments. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Attach_Stream( FT_Face face, + FT_Open_Args* parameters ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Reference_Face */ + /* */ + /* <Description> */ + /* A counter gets initialized to~1 at the time an @FT_Face structure */ + /* is created. This function increments the counter. @FT_Done_Face */ + /* then only destroys a face if the counter is~1, otherwise it simply */ + /* decrements the counter. */ + /* */ + /* This function helps in managing life-cycles of structures which */ + /* reference @FT_Face objects. */ + /* */ + /* <Input> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Since> */ + /* 2.4.2 */ + /* */ + FT_EXPORT( FT_Error ) + FT_Reference_Face( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Face */ + /* */ + /* <Description> */ + /* Discard a given face object, as well as all of its child slots and */ + /* sizes. */ + /* */ + /* <Input> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Face. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_Face( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Select_Size */ + /* */ + /* <Description> */ + /* Select a bitmap strike. */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Input> */ + /* strike_index :: The index of the bitmap strike in the */ + /* `available_sizes' field of @FT_FaceRec structure. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Select_Size( FT_Face face, + FT_Int strike_index ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Size_Request_Type */ + /* */ + /* <Description> */ + /* An enumeration type that lists the supported size request types. */ + /* */ + /* <Values> */ + /* FT_SIZE_REQUEST_TYPE_NOMINAL :: */ + /* The nominal size. The `units_per_EM' field of @FT_FaceRec is */ + /* used to determine both scaling values. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_REAL_DIM :: */ + /* The real dimension. The sum of the the `ascender' and (minus */ + /* of) the `descender' fields of @FT_FaceRec are used to determine */ + /* both scaling values. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_BBOX :: */ + /* The font bounding box. The width and height of the `bbox' field */ + /* of @FT_FaceRec are used to determine the horizontal and vertical */ + /* scaling value, respectively. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_CELL :: */ + /* The `max_advance_width' field of @FT_FaceRec is used to */ + /* determine the horizontal scaling value; the vertical scaling */ + /* value is determined the same way as */ + /* @FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling */ + /* values are set to the smaller one. This type is useful if you */ + /* want to specify the font size for, say, a window of a given */ + /* dimension and 80x24 cells. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_SCALES :: */ + /* Specify the scaling values directly. */ + /* */ + /* <Note> */ + /* The above descriptions only apply to scalable formats. For bitmap */ + /* formats, the behaviour is up to the driver. */ + /* */ + /* See the note section of @FT_Size_Metrics if you wonder how size */ + /* requesting relates to scaling values. */ + /* */ + typedef enum FT_Size_Request_Type_ + { + FT_SIZE_REQUEST_TYPE_NOMINAL, + FT_SIZE_REQUEST_TYPE_REAL_DIM, + FT_SIZE_REQUEST_TYPE_BBOX, + FT_SIZE_REQUEST_TYPE_CELL, + FT_SIZE_REQUEST_TYPE_SCALES, + + FT_SIZE_REQUEST_TYPE_MAX + + } FT_Size_Request_Type; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_RequestRec */ + /* */ + /* <Description> */ + /* A structure used to model a size request. */ + /* */ + /* <Fields> */ + /* type :: See @FT_Size_Request_Type. */ + /* */ + /* width :: The desired width. */ + /* */ + /* height :: The desired height. */ + /* */ + /* horiResolution :: The horizontal resolution. If set to zero, */ + /* `width' is treated as a 26.6 fractional pixel */ + /* value. */ + /* */ + /* vertResolution :: The vertical resolution. If set to zero, */ + /* `height' is treated as a 26.6 fractional pixel */ + /* value. */ + /* */ + /* <Note> */ + /* If `width' is zero, then the horizontal scaling value is set equal */ + /* to the vertical scaling value, and vice versa. */ + /* */ + typedef struct FT_Size_RequestRec_ + { + FT_Size_Request_Type type; + FT_Long width; + FT_Long height; + FT_UInt horiResolution; + FT_UInt vertResolution; + + } FT_Size_RequestRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_Request */ + /* */ + /* <Description> */ + /* A handle to a size request structure. */ + /* */ + typedef struct FT_Size_RequestRec_ *FT_Size_Request; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Request_Size */ + /* */ + /* <Description> */ + /* Resize the scale of the active @FT_Size object in a face. */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Input> */ + /* req :: A pointer to a @FT_Size_RequestRec. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Although drivers may select the bitmap strike matching the */ + /* request, you should not rely on this if you intend to select a */ + /* particular bitmap strike. Use @FT_Select_Size instead in that */ + /* case. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Request_Size( FT_Face face, + FT_Size_Request req ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Char_Size */ + /* */ + /* <Description> */ + /* This function calls @FT_Request_Size to request the nominal size */ + /* (in points). */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Input> */ + /* char_width :: The nominal width, in 26.6 fractional points. */ + /* */ + /* char_height :: The nominal height, in 26.6 fractional points. */ + /* */ + /* horz_resolution :: The horizontal resolution in dpi. */ + /* */ + /* vert_resolution :: The vertical resolution in dpi. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If either the character width or height is zero, it is set equal */ + /* to the other value. */ + /* */ + /* If either the horizontal or vertical resolution is zero, it is set */ + /* equal to the other value. */ + /* */ + /* A character width or height smaller than 1pt is set to 1pt; if */ + /* both resolution values are zero, they are set to 72dpi. */ + /* */ + /* Don't use this function if you are using the FreeType cache API. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Char_Size( FT_Face face, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Pixel_Sizes */ + /* */ + /* <Description> */ + /* This function calls @FT_Request_Size to request the nominal size */ + /* (in pixels). */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* pixel_width :: The nominal width, in pixels. */ + /* */ + /* pixel_height :: The nominal height, in pixels. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Pixel_Sizes( FT_Face face, + FT_UInt pixel_width, + FT_UInt pixel_height ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Load_Glyph */ + /* */ + /* <Description> */ + /* A function used to load a single glyph into the glyph slot of a */ + /* face object. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object where the glyph */ + /* is loaded. */ + /* */ + /* <Input> */ + /* glyph_index :: The index of the glyph in the font file. For */ + /* CID-keyed fonts (either in PS or in CFF format) */ + /* this argument specifies the CID value. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* @FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The loaded glyph may be transformed. See @FT_Set_Transform for */ + /* the details. */ + /* */ + /* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is */ + /* returned for invalid CID values (this is, for CID values which */ + /* don't have a corresponding glyph in the font). See the discussion */ + /* of the @FT_FACE_FLAG_CID_KEYED flag for more details. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Load_Glyph( FT_Face face, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Load_Char */ + /* */ + /* <Description> */ + /* A function used to load a single glyph into the glyph slot of a */ + /* face object, according to its character code. */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object where the glyph */ + /* is loaded. */ + /* */ + /* <Input> */ + /* char_code :: The glyph's character code, according to the */ + /* current charmap used in the face. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* @FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Load_Char( FT_Face face, + FT_ULong char_code, + FT_Int32 load_flags ); + + + /************************************************************************* + * + * @enum: + * FT_LOAD_XXX + * + * @description: + * A list of bit-field constants used with @FT_Load_Glyph to indicate + * what kind of operations to perform during glyph loading. + * + * @values: + * FT_LOAD_DEFAULT :: + * Corresponding to~0, this value is used as the default glyph load + * operation. In this case, the following happens: + * + * 1. FreeType looks for a bitmap for the glyph corresponding to the + * face's current size. If one is found, the function returns. + * The bitmap data can be accessed from the glyph slot (see note + * below). + * + * 2. If no embedded bitmap is searched or found, FreeType looks for a + * scalable outline. If one is found, it is loaded from the font + * file, scaled to device pixels, then `hinted' to the pixel grid + * in order to optimize it. The outline data can be accessed from + * the glyph slot (see note below). + * + * Note that by default, the glyph loader doesn't render outlines into + * bitmaps. The following flags are used to modify this default + * behaviour to more specific and useful cases. + * + * FT_LOAD_NO_SCALE :: + * Don't scale the outline glyph loaded, but keep it in font units. + * + * This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and + * unsets @FT_LOAD_RENDER. + * + * FT_LOAD_NO_HINTING :: + * Disable hinting. This generally generates `blurrier' bitmap glyph + * when the glyph is rendered in any of the anti-aliased modes. See + * also the note below. + * + * This flag is implied by @FT_LOAD_NO_SCALE. + * + * FT_LOAD_RENDER :: + * Call @FT_Render_Glyph after the glyph is loaded. By default, the + * glyph is rendered in @FT_RENDER_MODE_NORMAL mode. This can be + * overridden by @FT_LOAD_TARGET_XXX or @FT_LOAD_MONOCHROME. + * + * This flag is unset by @FT_LOAD_NO_SCALE. + * + * FT_LOAD_NO_BITMAP :: + * Ignore bitmap strikes when loading. Bitmap-only fonts ignore this + * flag. + * + * @FT_LOAD_NO_SCALE always sets this flag. + * + * FT_LOAD_VERTICAL_LAYOUT :: + * Load the glyph for vertical text layout. _Don't_ use it as it is + * problematic currently. + * + * FT_LOAD_FORCE_AUTOHINT :: + * Indicates that the auto-hinter is preferred over the font's native + * hinter. See also the note below. + * + * FT_LOAD_CROP_BITMAP :: + * Indicates that the font driver should crop the loaded bitmap glyph + * (i.e., remove all space around its black bits). Not all drivers + * implement this. + * + * FT_LOAD_PEDANTIC :: + * Indicates that the font driver should perform pedantic verifications + * during glyph loading. This is mostly used to detect broken glyphs + * in fonts. By default, FreeType tries to handle broken fonts also. + * + * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH :: + * Ignored. Deprecated. + * + * FT_LOAD_NO_RECURSE :: + * This flag is only used internally. It merely indicates that the + * font driver should not load composite glyphs recursively. Instead, + * it should set the `num_subglyph' and `subglyphs' values of the + * glyph slot accordingly, and set `glyph->format' to + * @FT_GLYPH_FORMAT_COMPOSITE. + * + * The description of sub-glyphs is not available to client + * applications for now. + * + * This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM. + * + * FT_LOAD_IGNORE_TRANSFORM :: + * Indicates that the transform matrix set by @FT_Set_Transform should + * be ignored. + * + * FT_LOAD_MONOCHROME :: + * This flag is used with @FT_LOAD_RENDER to indicate that you want to + * render an outline glyph to a 1-bit monochrome bitmap glyph, with + * 8~pixels packed into each byte of the bitmap data. + * + * Note that this has no effect on the hinting algorithm used. You + * should rather use @FT_LOAD_TARGET_MONO so that the + * monochrome-optimized hinting algorithm is used. + * + * FT_LOAD_LINEAR_DESIGN :: + * Indicates that the `linearHoriAdvance' and `linearVertAdvance' + * fields of @FT_GlyphSlotRec should be kept in font units. See + * @FT_GlyphSlotRec for details. + * + * FT_LOAD_NO_AUTOHINT :: + * Disable auto-hinter. See also the note below. + * + * @note: + * By default, hinting is enabled and the font's native hinter (see + * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can + * disable hinting by setting @FT_LOAD_NO_HINTING or change the + * precedence by setting @FT_LOAD_FORCE_AUTOHINT. You can also set + * @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be + * used at all. + * + * See the description of @FT_FACE_FLAG_TRICKY for a special exception + * (affecting only a handful of Asian fonts). + * + * Besides deciding which hinter to use, you can also decide which + * hinting algorithm to use. See @FT_LOAD_TARGET_XXX for details. + * + */ +#define FT_LOAD_DEFAULT 0x0 +#define FT_LOAD_NO_SCALE 0x1 +#define FT_LOAD_NO_HINTING 0x2 +#define FT_LOAD_RENDER 0x4 +#define FT_LOAD_NO_BITMAP 0x8 +#define FT_LOAD_VERTICAL_LAYOUT 0x10 +#define FT_LOAD_FORCE_AUTOHINT 0x20 +#define FT_LOAD_CROP_BITMAP 0x40 +#define FT_LOAD_PEDANTIC 0x80 +#define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH 0x200 +#define FT_LOAD_NO_RECURSE 0x400 +#define FT_LOAD_IGNORE_TRANSFORM 0x800 +#define FT_LOAD_MONOCHROME 0x1000 +#define FT_LOAD_LINEAR_DESIGN 0x2000 +#define FT_LOAD_NO_AUTOHINT 0x8000U + + /* */ + + /* used internally only by certain font drivers! */ +#define FT_LOAD_ADVANCE_ONLY 0x100 +#define FT_LOAD_SBITS_ONLY 0x4000 + + + /************************************************************************** + * + * @enum: + * FT_LOAD_TARGET_XXX + * + * @description: + * A list of values that are used to select a specific hinting algorithm + * to use by the hinter. You should OR one of these values to your + * `load_flags' when calling @FT_Load_Glyph. + * + * Note that font's native hinters may ignore the hinting algorithm you + * have specified (e.g., the TrueType bytecode interpreter). You can set + * @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used. + * + * Also note that @FT_LOAD_TARGET_LIGHT is an exception, in that it + * always implies @FT_LOAD_FORCE_AUTOHINT. + * + * @values: + * FT_LOAD_TARGET_NORMAL :: + * This corresponds to the default hinting algorithm, optimized for + * standard gray-level rendering. For monochrome output, use + * @FT_LOAD_TARGET_MONO instead. + * + * FT_LOAD_TARGET_LIGHT :: + * A lighter hinting algorithm for non-monochrome modes. Many + * generated glyphs are more fuzzy but better resemble its original + * shape. A bit like rendering on Mac OS~X. + * + * As a special exception, this target implies @FT_LOAD_FORCE_AUTOHINT. + * + * FT_LOAD_TARGET_MONO :: + * Strong hinting algorithm that should only be used for monochrome + * output. The result is probably unpleasant if the glyph is rendered + * in non-monochrome modes. + * + * FT_LOAD_TARGET_LCD :: + * A variant of @FT_LOAD_TARGET_NORMAL optimized for horizontally + * decimated LCD displays. + * + * FT_LOAD_TARGET_LCD_V :: + * A variant of @FT_LOAD_TARGET_NORMAL optimized for vertically + * decimated LCD displays. + * + * @note: + * You should use only _one_ of the FT_LOAD_TARGET_XXX values in your + * `load_flags'. They can't be ORed. + * + * If @FT_LOAD_RENDER is also set, the glyph is rendered in the + * corresponding mode (i.e., the mode which matches the used algorithm + * best) unless @FT_LOAD_MONOCHROME is set. + * + * You can use a hinting algorithm that doesn't correspond to the same + * rendering mode. As an example, it is possible to use the `light' + * hinting algorithm and have the results rendered in horizontal LCD + * pixel mode, with code like + * + * { + * FT_Load_Glyph( face, glyph_index, + * load_flags | FT_LOAD_TARGET_LIGHT ); + * + * FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD ); + * } + * + */ +#define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 ) + +#define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) +#define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) +#define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO ) +#define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD ) +#define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V ) + + + /************************************************************************** + * + * @macro: + * FT_LOAD_TARGET_MODE + * + * @description: + * Return the @FT_Render_Mode corresponding to a given + * @FT_LOAD_TARGET_XXX value. + * + */ +#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Transform */ + /* */ + /* <Description> */ + /* A function used to set the transformation that is applied to glyph */ + /* images when they are loaded into a glyph slot through */ + /* @FT_Load_Glyph. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to the transformation's 2x2 matrix. Use~0 for */ + /* the identity matrix. */ + /* delta :: A pointer to the translation vector. Use~0 for the null */ + /* vector. */ + /* */ + /* <Note> */ + /* The transformation is only applied to scalable image formats after */ + /* the glyph has been loaded. It means that hinting is unaltered by */ + /* the transformation and is performed on the character size given in */ + /* the last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes. */ + /* */ + /* Note that this also transforms the `face.glyph.advance' field, but */ + /* *not* the values in `face.glyph.metrics'. */ + /* */ + FT_EXPORT( void ) + FT_Set_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Render_Mode */ + /* */ + /* <Description> */ + /* An enumeration type that lists the render modes supported by */ + /* FreeType~2. Each mode corresponds to a specific type of scanline */ + /* conversion performed on the outline. */ + /* */ + /* For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode' */ + /* field in the @FT_GlyphSlotRec structure gives the format of the */ + /* returned bitmap. */ + /* */ + /* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity. */ + /* */ + /* <Values> */ + /* FT_RENDER_MODE_NORMAL :: */ + /* This is the default render mode; it corresponds to 8-bit */ + /* anti-aliased bitmaps. */ + /* */ + /* FT_RENDER_MODE_LIGHT :: */ + /* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only */ + /* defined as a separate value because render modes are also used */ + /* indirectly to define hinting algorithm selectors. See */ + /* @FT_LOAD_TARGET_XXX for details. */ + /* */ + /* FT_RENDER_MODE_MONO :: */ + /* This mode corresponds to 1-bit bitmaps (with 2~levels of */ + /* opacity). */ + /* */ + /* FT_RENDER_MODE_LCD :: */ + /* This mode corresponds to horizontal RGB and BGR sub-pixel */ + /* displays like LCD screens. It produces 8-bit bitmaps that are */ + /* 3~times the width of the original glyph outline in pixels, and */ + /* which use the @FT_PIXEL_MODE_LCD mode. */ + /* */ + /* FT_RENDER_MODE_LCD_V :: */ + /* This mode corresponds to vertical RGB and BGR sub-pixel displays */ + /* (like PDA screens, rotated LCD displays, etc.). It produces */ + /* 8-bit bitmaps that are 3~times the height of the original */ + /* glyph outline in pixels and use the @FT_PIXEL_MODE_LCD_V mode. */ + /* */ + /* <Note> */ + /* The LCD-optimized glyph bitmaps produced by FT_Render_Glyph can be */ + /* filtered to reduce color-fringes by using @FT_Library_SetLcdFilter */ + /* (not active in the default builds). It is up to the caller to */ + /* either call @FT_Library_SetLcdFilter (if available) or do the */ + /* filtering itself. */ + /* */ + /* The selected render mode only affects vector glyphs of a font. */ + /* Embedded bitmaps often have a different pixel mode like */ + /* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform */ + /* them into 8-bit pixmaps. */ + /* */ + typedef enum FT_Render_Mode_ + { + FT_RENDER_MODE_NORMAL = 0, + FT_RENDER_MODE_LIGHT, + FT_RENDER_MODE_MONO, + FT_RENDER_MODE_LCD, + FT_RENDER_MODE_LCD_V, + + FT_RENDER_MODE_MAX + + } FT_Render_Mode; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_render_mode_xxx */ + /* */ + /* <Description> */ + /* These constants are deprecated. Use the corresponding */ + /* @FT_Render_Mode values instead. */ + /* */ + /* <Values> */ + /* ft_render_mode_normal :: see @FT_RENDER_MODE_NORMAL */ + /* ft_render_mode_mono :: see @FT_RENDER_MODE_MONO */ + /* */ +#define ft_render_mode_normal FT_RENDER_MODE_NORMAL +#define ft_render_mode_mono FT_RENDER_MODE_MONO + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Render_Glyph */ + /* */ + /* <Description> */ + /* Convert a given glyph image to a bitmap. It does so by inspecting */ + /* the glyph image format, finding the relevant renderer, and */ + /* invoking it. */ + /* */ + /* <InOut> */ + /* slot :: A handle to the glyph slot containing the image to */ + /* convert. */ + /* */ + /* <Input> */ + /* render_mode :: This is the render mode used to render the glyph */ + /* image into a bitmap. See @FT_Render_Mode for a */ + /* list of possible values. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Render_Glyph( FT_GlyphSlot slot, + FT_Render_Mode render_mode ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Kerning_Mode */ + /* */ + /* <Description> */ + /* An enumeration used to specify which kerning values to return in */ + /* @FT_Get_Kerning. */ + /* */ + /* <Values> */ + /* FT_KERNING_DEFAULT :: Return scaled and grid-fitted kerning */ + /* distances (value is~0). */ + /* */ + /* FT_KERNING_UNFITTED :: Return scaled but un-grid-fitted kerning */ + /* distances. */ + /* */ + /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */ + /* units. */ + /* */ + typedef enum FT_Kerning_Mode_ + { + FT_KERNING_DEFAULT = 0, + FT_KERNING_UNFITTED, + FT_KERNING_UNSCALED + + } FT_Kerning_Mode; + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* ft_kerning_default */ + /* */ + /* <Description> */ + /* This constant is deprecated. Please use @FT_KERNING_DEFAULT */ + /* instead. */ + /* */ +#define ft_kerning_default FT_KERNING_DEFAULT + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* ft_kerning_unfitted */ + /* */ + /* <Description> */ + /* This constant is deprecated. Please use @FT_KERNING_UNFITTED */ + /* instead. */ + /* */ +#define ft_kerning_unfitted FT_KERNING_UNFITTED + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* ft_kerning_unscaled */ + /* */ + /* <Description> */ + /* This constant is deprecated. Please use @FT_KERNING_UNSCALED */ + /* instead. */ + /* */ +#define ft_kerning_unscaled FT_KERNING_UNSCALED + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Kerning */ + /* */ + /* <Description> */ + /* Return the kerning vector between two glyphs of a same face. */ + /* */ + /* <Input> */ + /* face :: A handle to a source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* kern_mode :: See @FT_Kerning_Mode for more information. */ + /* Determines the scale and dimension of the returned */ + /* kerning vector. */ + /* */ + /* <Output> */ + /* akerning :: The kerning vector. This is either in font units */ + /* or in pixels (26.6 format) for scalable formats, */ + /* and in pixels for fixed-sizes formats. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this method. Other layouts, or more sophisticated */ + /* kernings, are out of the scope of this API function -- they can be */ + /* implemented through format-specific interfaces. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Kerning( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_UInt kern_mode, + FT_Vector *akerning ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Track_Kerning */ + /* */ + /* <Description> */ + /* Return the track kerning for a given face object at a given size. */ + /* */ + /* <Input> */ + /* face :: A handle to a source face object. */ + /* */ + /* point_size :: The point size in 16.16 fractional points. */ + /* */ + /* degree :: The degree of tightness. */ + /* */ + /* <Output> */ + /* akerning :: The kerning in 16.16 fractional points. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Track_Kerning( FT_Face face, + FT_Fixed point_size, + FT_Int degree, + FT_Fixed* akerning ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Glyph_Name */ + /* */ + /* <Description> */ + /* Retrieve the ASCII name of a given glyph in a face. This only */ + /* works for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1. */ + /* */ + /* <Input> */ + /* face :: A handle to a source face object. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* buffer_max :: The maximal number of bytes available in the */ + /* buffer. */ + /* */ + /* <Output> */ + /* buffer :: A pointer to a target buffer where the name is */ + /* copied to. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* An error is returned if the face doesn't provide glyph names or if */ + /* the glyph index is invalid. In all cases of failure, the first */ + /* byte of `buffer' is set to~0 to indicate an empty name. */ + /* */ + /* The glyph name is truncated to fit within the buffer if it is too */ + /* long. The returned string is always zero-terminated. */ + /* */ + /* Be aware that FreeType reorders glyph indices internally so that */ + /* glyph index~0 always corresponds to the `missing glyph' (called */ + /* `.notdef'). */ + /* */ + /* This function is not compiled within the library if the config */ + /* macro `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is defined in */ + /* `include/freetype/config/ftoptions.h'. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Glyph_Name( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Postscript_Name */ + /* */ + /* <Description> */ + /* Retrieve the ASCII PostScript name of a given face, if available. */ + /* This only works with PostScript and TrueType fonts. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Return> */ + /* A pointer to the face's PostScript name. NULL if unavailable. */ + /* */ + /* <Note> */ + /* The returned pointer is owned by the face and is destroyed with */ + /* it. */ + /* */ + FT_EXPORT( const char* ) + FT_Get_Postscript_Name( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Select_Charmap */ + /* */ + /* <Description> */ + /* Select a given charmap by its encoding tag (as listed in */ + /* `freetype.h'). */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Input> */ + /* encoding :: A handle to the selected encoding. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function returns an error if no charmap in the face */ + /* corresponds to the encoding queried here. */ + /* */ + /* Because many fonts contain more than a single cmap for Unicode */ + /* encoding, this function has some special code to select the one */ + /* which covers Unicode best (`best' in the sense that a UCS-4 cmap */ + /* is preferred to a UCS-2 cmap). It is thus preferable to */ + /* @FT_Set_Charmap in this case. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Select_Charmap( FT_Face face, + FT_Encoding encoding ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Charmap */ + /* */ + /* <Description> */ + /* Select a given charmap for character code to glyph index mapping. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Input> */ + /* charmap :: A handle to the selected charmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function returns an error if the charmap is not part of */ + /* the face (i.e., if it is not listed in the `face->charmaps' */ + /* table). */ + /* */ + /* It also fails if a type~14 charmap is selected. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Charmap( FT_Face face, + FT_CharMap charmap ); + + + /************************************************************************* + * + * @function: + * FT_Get_Charmap_Index + * + * @description: + * Retrieve index of a given charmap. + * + * @input: + * charmap :: + * A handle to a charmap. + * + * @return: + * The index into the array of character maps within the face to which + * `charmap' belongs. If an error occurs, -1 is returned. + * + */ + FT_EXPORT( FT_Int ) + FT_Get_Charmap_Index( FT_CharMap charmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Char_Index */ + /* */ + /* <Description> */ + /* Return the glyph index of a given character code. This function */ + /* uses a charmap object to do the mapping. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* charcode :: The character code. */ + /* */ + /* <Return> */ + /* The glyph index. 0~means `undefined character code'. */ + /* */ + /* <Note> */ + /* If you use FreeType to manipulate the contents of font files */ + /* directly, be aware that the glyph index returned by this function */ + /* doesn't always correspond to the internal indices used within */ + /* the file. This is done to ensure that value~0 always corresponds */ + /* to the `missing glyph'. */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Get_Char_Index( FT_Face face, + FT_ULong charcode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_First_Char */ + /* */ + /* <Description> */ + /* This function is used to return the first character code in the */ + /* current charmap of a given face. It also returns the */ + /* corresponding glyph index. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Output> */ + /* agindex :: Glyph index of first character code. 0~if charmap is */ + /* empty. */ + /* */ + /* <Return> */ + /* The charmap's first character code. */ + /* */ + /* <Note> */ + /* You should use this function with @FT_Get_Next_Char to be able to */ + /* parse all character codes available in a given charmap. The code */ + /* should look like this: */ + /* */ + /* { */ + /* FT_ULong charcode; */ + /* FT_UInt gindex; */ + /* */ + /* */ + /* charcode = FT_Get_First_Char( face, &gindex ); */ + /* while ( gindex != 0 ) */ + /* { */ + /* ... do something with (charcode,gindex) pair ... */ + /* */ + /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */ + /* } */ + /* } */ + /* */ + /* Note that `*agindex' is set to~0 if the charmap is empty. The */ + /* result itself can be~0 in two cases: if the charmap is empty or */ + /* if the value~0 is the first valid character code. */ + /* */ + FT_EXPORT( FT_ULong ) + FT_Get_First_Char( FT_Face face, + FT_UInt *agindex ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Next_Char */ + /* */ + /* <Description> */ + /* This function is used to return the next character code in the */ + /* current charmap of a given face following the value `char_code', */ + /* as well as the corresponding glyph index. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* char_code :: The starting character code. */ + /* */ + /* <Output> */ + /* agindex :: Glyph index of next character code. 0~if charmap */ + /* is empty. */ + /* */ + /* <Return> */ + /* The charmap's next character code. */ + /* */ + /* <Note> */ + /* You should use this function with @FT_Get_First_Char to walk */ + /* over all character codes available in a given charmap. See the */ + /* note for this function for a simple code example. */ + /* */ + /* Note that `*agindex' is set to~0 when there are no more codes in */ + /* the charmap. */ + /* */ + FT_EXPORT( FT_ULong ) + FT_Get_Next_Char( FT_Face face, + FT_ULong char_code, + FT_UInt *agindex ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Name_Index */ + /* */ + /* <Description> */ + /* Return the glyph index of a given glyph name. This function uses */ + /* driver specific objects to do the translation. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* glyph_name :: The glyph name. */ + /* */ + /* <Return> */ + /* The glyph index. 0~means `undefined character code'. */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Get_Name_Index( FT_Face face, + FT_String* glyph_name ); + + + /************************************************************************* + * + * @macro: + * FT_SUBGLYPH_FLAG_XXX + * + * @description: + * A list of constants used to describe subglyphs. Please refer to the + * TrueType specification for the meaning of the various flags. + * + * @values: + * FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS :: + * FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES :: + * FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID :: + * FT_SUBGLYPH_FLAG_SCALE :: + * FT_SUBGLYPH_FLAG_XY_SCALE :: + * FT_SUBGLYPH_FLAG_2X2 :: + * FT_SUBGLYPH_FLAG_USE_MY_METRICS :: + * + */ +#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 +#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 +#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 +#define FT_SUBGLYPH_FLAG_SCALE 8 +#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 +#define FT_SUBGLYPH_FLAG_2X2 0x80 +#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 + + + /************************************************************************* + * + * @func: + * FT_Get_SubGlyph_Info + * + * @description: + * Retrieve a description of a given subglyph. Only use it if + * `glyph->format' is @FT_GLYPH_FORMAT_COMPOSITE; an error is + * returned otherwise. + * + * @input: + * glyph :: + * The source glyph slot. + * + * sub_index :: + * The index of the subglyph. Must be less than + * `glyph->num_subglyphs'. + * + * @output: + * p_index :: + * The glyph index of the subglyph. + * + * p_flags :: + * The subglyph flags, see @FT_SUBGLYPH_FLAG_XXX. + * + * p_arg1 :: + * The subglyph's first argument (if any). + * + * p_arg2 :: + * The subglyph's second argument (if any). + * + * p_transform :: + * The subglyph transformation (if any). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The values of `*p_arg1', `*p_arg2', and `*p_transform' must be + * interpreted depending on the flags returned in `*p_flags'. See the + * TrueType specification for details. + * + */ + FT_EXPORT( FT_Error ) + FT_Get_SubGlyph_Info( FT_GlyphSlot glyph, + FT_UInt sub_index, + FT_Int *p_index, + FT_UInt *p_flags, + FT_Int *p_arg1, + FT_Int *p_arg2, + FT_Matrix *p_transform ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_FSTYPE_XXX */ + /* */ + /* <Description> */ + /* A list of bit flags used in the `fsType' field of the OS/2 table */ + /* in a TrueType or OpenType font and the `FSType' entry in a */ + /* PostScript font. These bit flags are returned by */ + /* @FT_Get_FSType_Flags; they inform client applications of embedding */ + /* and subsetting restrictions associated with a font. */ + /* */ + /* See http://www.adobe.com/devnet/acrobat/pdfs/FontPolicies.pdf for */ + /* more details. */ + /* */ + /* <Values> */ + /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */ + /* Fonts with no fsType bit set may be embedded and permanently */ + /* installed on the remote system by an application. */ + /* */ + /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */ + /* Fonts that have only this bit set must not be modified, embedded */ + /* or exchanged in any manner without first obtaining permission of */ + /* the font software copyright owner. */ + /* */ + /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING :: */ + /* If this bit is set, the font may be embedded and temporarily */ + /* loaded on the remote system. Documents containing Preview & */ + /* Print fonts must be opened `read-only'; no edits can be applied */ + /* to the document. */ + /* */ + /* FT_FSTYPE_EDITABLE_EMBEDDING :: */ + /* If this bit is set, the font may be embedded but must only be */ + /* installed temporarily on other systems. In contrast to Preview */ + /* & Print fonts, documents containing editable fonts may be opened */ + /* for reading, editing is permitted, and changes may be saved. */ + /* */ + /* FT_FSTYPE_NO_SUBSETTING :: */ + /* If this bit is set, the font may not be subsetted prior to */ + /* embedding. */ + /* */ + /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */ + /* If this bit is set, only bitmaps contained in the font may be */ + /* embedded; no outline data may be embedded. If there are no */ + /* bitmaps available in the font, then the font is unembeddable. */ + /* */ + /* <Note> */ + /* While the fsType flags can indicate that a font may be embedded, a */ + /* license with the font vendor may be separately required to use the */ + /* font in this way. */ + /* */ +#define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 +#define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 +#define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 +#define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 +#define FT_FSTYPE_NO_SUBSETTING 0x0100 +#define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_FSType_Flags */ + /* */ + /* <Description> */ + /* Return the fsType flags for a font. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Return> */ + /* The fsType flags, @FT_FSTYPE_XXX. */ + /* */ + /* <Note> */ + /* Use this function rather than directly reading the `fs_type' field */ + /* in the @PS_FontInfoRec structure which is only guaranteed to */ + /* return the correct results for Type~1 fonts. */ + /* */ + /* <Since> */ + /* 2.3.8 */ + /* */ + FT_EXPORT( FT_UShort ) + FT_Get_FSType_Flags( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* glyph_variants */ + /* */ + /* <Title> */ + /* Glyph Variants */ + /* */ + /* <Abstract> */ + /* The FreeType~2 interface to Unicode Ideographic Variation */ + /* Sequences (IVS), using the SFNT cmap format~14. */ + /* */ + /* <Description> */ + /* Many CJK characters have variant forms. They are a sort of grey */ + /* area somewhere between being totally irrelevant and semantically */ + /* distinct; for this reason, the Unicode consortium decided to */ + /* introduce Ideographic Variation Sequences (IVS), consisting of a */ + /* Unicode base character and one of 240 variant selectors */ + /* (U+E0100-U+E01EF), instead of further extending the already huge */ + /* code range for CJK characters. */ + /* */ + /* An IVS is registered and unique; for further details please refer */ + /* to Unicode Technical Report #37, the Ideographic Variation */ + /* Database. To date (October 2007), the character with the most */ + /* variants is U+908A, having 8~such IVS. */ + /* */ + /* Adobe and MS decided to support IVS with a new cmap subtable */ + /* (format~14). It is an odd subtable because it is not a mapping of */ + /* input code points to glyphs, but contains lists of all variants */ + /* supported by the font. */ + /* */ + /* A variant may be either `default' or `non-default'. A default */ + /* variant is the one you will get for that code point if you look it */ + /* up in the standard Unicode cmap. A non-default variant is a */ + /* different glyph. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetCharVariantIndex */ + /* */ + /* <Description> */ + /* Return the glyph index of a given character code as modified by */ + /* the variation selector. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* charcode :: */ + /* The character code point in Unicode. */ + /* */ + /* variantSelector :: */ + /* The Unicode code point of the variation selector. */ + /* */ + /* <Return> */ + /* The glyph index. 0~means either `undefined character code', or */ + /* `undefined selector code', or `no variation selector cmap */ + /* subtable', or `current CharMap is not Unicode'. */ + /* */ + /* <Note> */ + /* If you use FreeType to manipulate the contents of font files */ + /* directly, be aware that the glyph index returned by this function */ + /* doesn't always correspond to the internal indices used within */ + /* the file. This is done to ensure that value~0 always corresponds */ + /* to the `missing glyph'. */ + /* */ + /* This function is only meaningful if */ + /* a) the font has a variation selector cmap sub table, */ + /* and */ + /* b) the current charmap has a Unicode encoding. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Face_GetCharVariantIndex( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetCharVariantIsDefault */ + /* */ + /* <Description> */ + /* Check whether this variant of this Unicode character is the one to */ + /* be found in the `cmap'. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* charcode :: */ + /* The character codepoint in Unicode. */ + /* */ + /* variantSelector :: */ + /* The Unicode codepoint of the variation selector. */ + /* */ + /* <Return> */ + /* 1~if found in the standard (Unicode) cmap, 0~if found in the */ + /* variation selector cmap, or -1 if it is not a variant. */ + /* */ + /* <Note> */ + /* This function is only meaningful if the font has a variation */ + /* selector cmap subtable. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_Int ) + FT_Face_GetCharVariantIsDefault( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetVariantSelectors */ + /* */ + /* <Description> */ + /* Return a zero-terminated list of Unicode variant selectors found */ + /* in the font. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* <Return> */ + /* A pointer to an array of selector code points, or NULL if there is */ + /* no valid variant selector cmap subtable. */ + /* */ + /* <Note> */ + /* The last item in the array is~0; the array is owned by the */ + /* @FT_Face object but can be overwritten or released on the next */ + /* call to a FreeType function. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt32* ) + FT_Face_GetVariantSelectors( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetVariantsOfChar */ + /* */ + /* <Description> */ + /* Return a zero-terminated list of Unicode variant selectors found */ + /* for the specified character code. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* charcode :: */ + /* The character codepoint in Unicode. */ + /* */ + /* <Return> */ + /* A pointer to an array of variant selector code points which are */ + /* active for the given character, or NULL if the corresponding list */ + /* is empty. */ + /* */ + /* <Note> */ + /* The last item in the array is~0; the array is owned by the */ + /* @FT_Face object but can be overwritten or released on the next */ + /* call to a FreeType function. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt32* ) + FT_Face_GetVariantsOfChar( FT_Face face, + FT_ULong charcode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetCharsOfVariant */ + /* */ + /* <Description> */ + /* Return a zero-terminated list of Unicode character codes found for */ + /* the specified variant selector. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* variantSelector :: */ + /* The variant selector code point in Unicode. */ + /* */ + /* <Return> */ + /* A list of all the code points which are specified by this selector */ + /* (both default and non-default codes are returned) or NULL if there */ + /* is no valid cmap or the variant selector is invalid. */ + /* */ + /* <Note> */ + /* The last item in the array is~0; the array is owned by the */ + /* @FT_Face object but can be overwritten or released on the next */ + /* call to a FreeType function. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt32* ) + FT_Face_GetCharsOfVariant( FT_Face face, + FT_ULong variantSelector ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /* <Title> */ + /* Computations */ + /* */ + /* <Abstract> */ + /* Crunching fixed numbers and vectors. */ + /* */ + /* <Description> */ + /* This section contains various functions used to perform */ + /* computations on 16.16 fixed-float numbers or 2d vectors. */ + /* */ + /* <Order> */ + /* FT_MulDiv */ + /* FT_MulFix */ + /* FT_DivFix */ + /* FT_RoundFix */ + /* FT_CeilFix */ + /* FT_FloorFix */ + /* FT_Vector_Transform */ + /* FT_Matrix_Multiply */ + /* FT_Matrix_Invert */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_MulDiv */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation `(a*b)/c' */ + /* with maximal accuracy (it uses a 64-bit intermediate integer */ + /* whenever necessary). */ + /* */ + /* This function isn't necessarily as fast as some processor specific */ + /* operations, but is at least completely portable. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. */ + /* c :: The divisor. */ + /* */ + /* <Return> */ + /* The result of `(a*b)/c'. This function never traps when trying to */ + /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ + /* on the signs of `a' and `b'. */ + /* */ + FT_EXPORT( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ); + + + /* */ + + /* The following #if 0 ... #endif is for the documentation formatter, */ + /* hiding the internal `FT_MULFIX_INLINED' macro. */ + +#if 0 + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_MulFix */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation */ + /* `(a*b)/0x10000' with maximal accuracy. Most of the time this is */ + /* used to multiply a given value by a 16.16 fixed float factor. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. Use a 16.16 factor here whenever */ + /* possible (see note below). */ + /* */ + /* <Return> */ + /* The result of `(a*b)/0x10000'. */ + /* */ + /* <Note> */ + /* This function has been optimized for the case where the absolute */ + /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */ + /* As this happens mainly when scaling from notional units to */ + /* fractional pixels in FreeType, it resulted in noticeable speed */ + /* improvements between versions 2.x and 1.x. */ + /* */ + /* As a conclusion, always try to place a 16.16 factor as the */ + /* _second_ argument of this function; this can make a great */ + /* difference. */ + /* */ + FT_EXPORT( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ); + + /* */ +#endif + +#ifdef FT_MULFIX_INLINED +#define FT_MulFix( a, b ) FT_MULFIX_INLINED( a, b ) +#else + FT_EXPORT( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ); +#endif + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_DivFix */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation */ + /* `(a*0x10000)/b' with maximal accuracy. Most of the time, this is */ + /* used to divide a given value by a 16.16 fixed float factor. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. Use a 16.16 factor here whenever */ + /* possible (see note below). */ + /* */ + /* <Return> */ + /* The result of `(a*0x10000)/b'. */ + /* */ + /* <Note> */ + /* The optimization for FT_DivFix() is simple: If (a~<<~16) fits in */ + /* 32~bits, then the division is computed directly. Otherwise, we */ + /* use a specialized version of @FT_MulDiv. */ + /* */ + FT_EXPORT( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_RoundFix */ + /* */ + /* <Description> */ + /* A very simple function used to round a 16.16 fixed number. */ + /* */ + /* <Input> */ + /* a :: The number to be rounded. */ + /* */ + /* <Return> */ + /* The result of `(a + 0x8000) & -0x10000'. */ + /* */ + FT_EXPORT( FT_Fixed ) + FT_RoundFix( FT_Fixed a ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_CeilFix */ + /* */ + /* <Description> */ + /* A very simple function used to compute the ceiling function of a */ + /* 16.16 fixed number. */ + /* */ + /* <Input> */ + /* a :: The number for which the ceiling function is to be computed. */ + /* */ + /* <Return> */ + /* The result of `(a + 0x10000 - 1) & -0x10000'. */ + /* */ + FT_EXPORT( FT_Fixed ) + FT_CeilFix( FT_Fixed a ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_FloorFix */ + /* */ + /* <Description> */ + /* A very simple function used to compute the floor function of a */ + /* 16.16 fixed number. */ + /* */ + /* <Input> */ + /* a :: The number for which the floor function is to be computed. */ + /* */ + /* <Return> */ + /* The result of `a & -0x10000'. */ + /* */ + FT_EXPORT( FT_Fixed ) + FT_FloorFix( FT_Fixed a ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Vector_Transform */ + /* */ + /* <Description> */ + /* Transform a single vector through a 2x2 matrix. */ + /* */ + /* <InOut> */ + /* vector :: The target vector to transform. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to the source 2x2 matrix. */ + /* */ + /* <Note> */ + /* The result is undefined if either `vector' or `matrix' is invalid. */ + /* */ + FT_EXPORT( void ) + FT_Vector_Transform( FT_Vector* vec, + const FT_Matrix* matrix ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* version */ + /* */ + /* <Title> */ + /* FreeType Version */ + /* */ + /* <Abstract> */ + /* Functions and macros related to FreeType versions. */ + /* */ + /* <Description> */ + /* Note that those functions and macros are of limited use because */ + /* even a new release of FreeType with only documentation changes */ + /* increases the version number. */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @enum: + * FREETYPE_XXX + * + * @description: + * These three macros identify the FreeType source code version. + * Use @FT_Library_Version to access them at runtime. + * + * @values: + * FREETYPE_MAJOR :: The major version number. + * FREETYPE_MINOR :: The minor version number. + * FREETYPE_PATCH :: The patch level. + * + * @note: + * The version number of FreeType if built as a dynamic link library + * with the `libtool' package is _not_ controlled by these three + * macros. + * + */ +#define FREETYPE_MAJOR 2 +#define FREETYPE_MINOR 4 +#define FREETYPE_PATCH 6 + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Library_Version */ + /* */ + /* <Description> */ + /* Return the version of the FreeType library being used. This is */ + /* useful when dynamically linking to the library, since one cannot */ + /* use the macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and */ + /* @FREETYPE_PATCH. */ + /* */ + /* <Input> */ + /* library :: A source library handle. */ + /* */ + /* <Output> */ + /* amajor :: The major version number. */ + /* */ + /* aminor :: The minor version number. */ + /* */ + /* apatch :: The patch version number. */ + /* */ + /* <Note> */ + /* The reason why this function takes a `library' argument is because */ + /* certain programs implement library initialization in a custom way */ + /* that doesn't use @FT_Init_FreeType. */ + /* */ + /* In such cases, the library version might not be available before */ + /* the library object has been created. */ + /* */ + FT_EXPORT( void ) + FT_Library_Version( FT_Library library, + FT_Int *amajor, + FT_Int *aminor, + FT_Int *apatch ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_CheckTrueTypePatents */ + /* */ + /* <Description> */ + /* Parse all bytecode instructions of a TrueType font file to check */ + /* whether any of the patented opcodes are used. This is only useful */ + /* if you want to be able to use the unpatented hinter with */ + /* fonts that do *not* use these opcodes. */ + /* */ + /* Note that this function parses *all* glyph instructions in the */ + /* font file, which may be slow. */ + /* */ + /* <Input> */ + /* face :: A face handle. */ + /* */ + /* <Return> */ + /* 1~if this is a TrueType font that uses one of the patented */ + /* opcodes, 0~otherwise. */ + /* */ + /* <Note> */ + /* Since May 2010, TrueType hinting is no longer patented. */ + /* */ + /* <Since> */ + /* 2.3.5 */ + /* */ + FT_EXPORT( FT_Bool ) + FT_Face_CheckTrueTypePatents( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_SetUnpatentedHinting */ + /* */ + /* <Description> */ + /* Enable or disable the unpatented hinter for a given face. */ + /* Only enable it if you have determined that the face doesn't */ + /* use any patented opcodes (see @FT_Face_CheckTrueTypePatents). */ + /* */ + /* <Input> */ + /* face :: A face handle. */ + /* */ + /* value :: New boolean setting. */ + /* */ + /* <Return> */ + /* The old setting value. This will always be false if this is not */ + /* an SFNT font, or if the unpatented hinter is not compiled in this */ + /* instance of the library. */ + /* */ + /* <Note> */ + /* Since May 2010, TrueType hinting is no longer patented. */ + /* */ + /* <Since> */ + /* 2.3.5 */ + /* */ + FT_EXPORT( FT_Bool ) + FT_Face_SetUnpatentedHinting( FT_Face face, + FT_Bool value ); + + /* */ + + +FT_END_HEADER + +#endif /* __FREETYPE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ft2build.h b/uppsrc/plugin/FT_fontsys/ft2build.h new file mode 100644 index 000000000..923d887df --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ft2build.h @@ -0,0 +1,39 @@ +/***************************************************************************/ +/* */ +/* ft2build.h */ +/* */ +/* FreeType 2 build and setup macros. */ +/* (Generic version) */ +/* */ +/* Copyright 1996-2001, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file corresponds to the default `ft2build.h' file for */ + /* FreeType 2. It uses the `freetype' include root. */ + /* */ + /* Note that specific platforms might use a different configuration. */ + /* See builds/unix/ft2unix.h for an example. */ + /* */ + /*************************************************************************/ + + +#ifndef __FT2_BUILD_GENERIC_H__ +#define __FT2_BUILD_GENERIC_H__ + +#include <freetype/config/ftheader.h> + +#endif /* __FT2_BUILD_GENERIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftadvanc.h b/uppsrc/plugin/FT_fontsys/ftadvanc.h new file mode 100644 index 000000000..12f2a6021 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftadvanc.h @@ -0,0 +1,179 @@ +/***************************************************************************/ +/* */ +/* ftadvanc.h */ +/* */ +/* Quick computation of advance widths (specification only). */ +/* */ +/* Copyright 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTADVANC_H__ +#define __FTADVANC_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /************************************************************************** + * + * @section: + * quick_advance + * + * @title: + * Quick retrieval of advance values + * + * @abstract: + * Retrieve horizontal and vertical advance values without processing + * glyph outlines, if possible. + * + * @description: + * This section contains functions to quickly extract advance values + * without handling glyph outlines, if possible. + */ + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* FT_ADVANCE_FLAG_FAST_ONLY */ + /* */ + /* <Description> */ + /* A bit-flag to be OR-ed with the `flags' parameter of the */ + /* @FT_Get_Advance and @FT_Get_Advances functions. */ + /* */ + /* If set, it indicates that you want these functions to fail if the */ + /* corresponding hinting mode or font driver doesn't allow for very */ + /* quick advance computation. */ + /* */ + /* Typically, glyphs which are either unscaled, unhinted, bitmapped, */ + /* or light-hinted can have their advance width computed very */ + /* quickly. */ + /* */ + /* Normal and bytecode hinted modes, which require loading, scaling, */ + /* and hinting of the glyph outline, are extremely slow by */ + /* comparison. */ + /* */ +#define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000UL + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Advance */ + /* */ + /* <Description> */ + /* Retrieve the advance value of a given glyph outline in an */ + /* @FT_Face. By default, the unhinted advance is returned in font */ + /* units. */ + /* */ + /* <Input> */ + /* face :: The source @FT_Face handle. */ + /* */ + /* gindex :: The glyph index. */ + /* */ + /* load_flags :: A set of bit flags similar to those used when */ + /* calling @FT_Load_Glyph, used to determine what kind */ + /* of advances you need. */ + /* <Output> */ + /* padvance :: The advance value, in either font units or 16.16 */ + /* format. */ + /* */ + /* If @FT_LOAD_VERTICAL_LAYOUT is set, this is the */ + /* vertical advance corresponding to a vertical layout. */ + /* Otherwise, it is the horizontal advance in a */ + /* horizontal layout. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and */ + /* if the corresponding font backend doesn't have a quick way to */ + /* retrieve the advances. */ + /* */ + /* A scaled advance is returned in 16.16 format but isn't transformed */ + /* by the affine transformation specified by @FT_Set_Transform. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Advance( FT_Face face, + FT_UInt gindex, + FT_Int32 load_flags, + FT_Fixed *padvance ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Advances */ + /* */ + /* <Description> */ + /* Retrieve the advance values of several glyph outlines in an */ + /* @FT_Face. By default, the unhinted advances are returned in font */ + /* units. */ + /* */ + /* <Input> */ + /* face :: The source @FT_Face handle. */ + /* */ + /* start :: The first glyph index. */ + /* */ + /* count :: The number of advance values you want to retrieve. */ + /* */ + /* load_flags :: A set of bit flags similar to those used when */ + /* calling @FT_Load_Glyph. */ + /* */ + /* <Output> */ + /* padvance :: The advances, in either font units or 16.16 format. */ + /* This array must contain at least `count' elements. */ + /* */ + /* If @FT_LOAD_VERTICAL_LAYOUT is set, these are the */ + /* vertical advances corresponding to a vertical layout. */ + /* Otherwise, they are the horizontal advances in a */ + /* horizontal layout. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and */ + /* if the corresponding font backend doesn't have a quick way to */ + /* retrieve the advances. */ + /* */ + /* Scaled advances are returned in 16.16 format but aren't */ + /* transformed by the affine transformation specified by */ + /* @FT_Set_Transform. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Advances( FT_Face face, + FT_UInt start, + FT_UInt count, + FT_Int32 load_flags, + FT_Fixed *padvances ); + +/* */ + + +FT_END_HEADER + +#endif /* __FTADVANC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftbbox.h b/uppsrc/plugin/FT_fontsys/ftbbox.h new file mode 100644 index 000000000..f75cb1588 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftbbox.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* ftbbox.h */ +/* */ +/* FreeType exact bbox computation (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component has a _single_ role: to compute exact outline bounding */ + /* boxes. */ + /* */ + /* It is separated from the rest of the engine for various technical */ + /* reasons. It may well be integrated in `ftoutln' later. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTBBOX_H__ +#define __FTBBOX_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* outline_processing */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Get_BBox */ + /* */ + /* <Description> */ + /* Compute the exact bounding box of an outline. This is slower */ + /* than computing the control box. However, it uses an advanced */ + /* algorithm which returns _very_ quickly when the two boxes */ + /* coincide. Otherwise, the outline Bézier arcs are traversed to */ + /* extract their extrema. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source outline. */ + /* */ + /* <Output> */ + /* abbox :: The outline's exact bounding box. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If the font is tricky and the glyph has been loaded with */ + /* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get */ + /* reasonable values for the BBox it is necessary to load the glyph */ + /* at a large ppem value (so that the hinting instructions can */ + /* properly shift and scale the subglyphs), then extracting the BBox */ + /* which can be eventually converted back to font units. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Get_BBox( FT_Outline* outline, + FT_BBox *abbox ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTBBOX_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/ftbdf.h b/uppsrc/plugin/FT_fontsys/ftbdf.h new file mode 100644 index 000000000..0f5cbe218 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftbdf.h @@ -0,0 +1,209 @@ +/***************************************************************************/ +/* */ +/* ftbdf.h */ +/* */ +/* FreeType API for accessing BDF-specific strings (specification). */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBDF_H__ +#define __FTBDF_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* bdf_fonts */ + /* */ + /* <Title> */ + /* BDF and PCF Files */ + /* */ + /* <Abstract> */ + /* BDF and PCF specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of functions specific to BDF */ + /* and PCF fonts. */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @enum: + * FT_PropertyType + * + * @description: + * A list of BDF property types. + * + * @values: + * BDF_PROPERTY_TYPE_NONE :: + * Value~0 is used to indicate a missing property. + * + * BDF_PROPERTY_TYPE_ATOM :: + * Property is a string atom. + * + * BDF_PROPERTY_TYPE_INTEGER :: + * Property is a 32-bit signed integer. + * + * BDF_PROPERTY_TYPE_CARDINAL :: + * Property is a 32-bit unsigned integer. + */ + typedef enum BDF_PropertyType_ + { + BDF_PROPERTY_TYPE_NONE = 0, + BDF_PROPERTY_TYPE_ATOM = 1, + BDF_PROPERTY_TYPE_INTEGER = 2, + BDF_PROPERTY_TYPE_CARDINAL = 3 + + } BDF_PropertyType; + + + /********************************************************************** + * + * @type: + * BDF_Property + * + * @description: + * A handle to a @BDF_PropertyRec structure to model a given + * BDF/PCF property. + */ + typedef struct BDF_PropertyRec_* BDF_Property; + + + /********************************************************************** + * + * @struct: + * BDF_PropertyRec + * + * @description: + * This structure models a given BDF/PCF property. + * + * @fields: + * type :: + * The property type. + * + * u.atom :: + * The atom string, if type is @BDF_PROPERTY_TYPE_ATOM. + * + * u.integer :: + * A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER. + * + * u.cardinal :: + * An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL. + */ + typedef struct BDF_PropertyRec_ + { + BDF_PropertyType type; + union { + const char* atom; + FT_Int32 integer; + FT_UInt32 cardinal; + + } u; + + } BDF_PropertyRec; + + + /********************************************************************** + * + * @function: + * FT_Get_BDF_Charset_ID + * + * @description: + * Retrieve a BDF font character set identity, according to + * the BDF specification. + * + * @input: + * face :: + * A handle to the input face. + * + * @output: + * acharset_encoding :: + * Charset encoding, as a C~string, owned by the face. + * + * acharset_registry :: + * Charset registry, as a C~string, owned by the face. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with BDF faces, returning an error otherwise. + */ + FT_EXPORT( FT_Error ) + FT_Get_BDF_Charset_ID( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ); + + + /********************************************************************** + * + * @function: + * FT_Get_BDF_Property + * + * @description: + * Retrieve a BDF property from a BDF or PCF font file. + * + * @input: + * face :: A handle to the input face. + * + * name :: The property name. + * + * @output: + * aproperty :: The property. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function works with BDF _and_ PCF fonts. It returns an error + * otherwise. It also returns an error if the property is not in the + * font. + * + * A `property' is a either key-value pair within the STARTPROPERTIES + * ... ENDPROPERTIES block of a BDF font or a key-value pair from the + * `info->props' array within a `FontRec' structure of a PCF font. + * + * Integer properties are always stored as `signed' within PCF fonts; + * consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value + * for BDF fonts only. + * + * In case of error, `aproperty->type' is always set to + * @BDF_PROPERTY_TYPE_NONE. + */ + FT_EXPORT( FT_Error ) + FT_Get_BDF_Property( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ); + + /* */ + +FT_END_HEADER + +#endif /* __FTBDF_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftbitmap.h b/uppsrc/plugin/FT_fontsys/ftbitmap.h new file mode 100644 index 000000000..ab6ef3a52 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftbitmap.h @@ -0,0 +1,227 @@ +/***************************************************************************/ +/* */ +/* ftbitmap.h */ +/* */ +/* FreeType utility functions for bitmaps (specification). */ +/* */ +/* Copyright 2004, 2005, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBITMAP_H__ +#define __FTBITMAP_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* bitmap_handling */ + /* */ + /* <Title> */ + /* Bitmap Handling */ + /* */ + /* <Abstract> */ + /* Handling FT_Bitmap objects. */ + /* */ + /* <Description> */ + /* This section contains functions for converting FT_Bitmap objects. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_New */ + /* */ + /* <Description> */ + /* Initialize a pointer to an @FT_Bitmap structure. */ + /* */ + /* <InOut> */ + /* abitmap :: A pointer to the bitmap structure. */ + /* */ + FT_EXPORT( void ) + FT_Bitmap_New( FT_Bitmap *abitmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Copy */ + /* */ + /* <Description> */ + /* Copy a bitmap into another one. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* source :: A handle to the source bitmap. */ + /* */ + /* <Output> */ + /* target :: A handle to the target bitmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Copy( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Embolden */ + /* */ + /* <Description> */ + /* Embolden a bitmap. The new bitmap will be about `xStrength' */ + /* pixels wider and `yStrength' pixels higher. The left and bottom */ + /* borders are kept unchanged. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* xStrength :: How strong the glyph is emboldened horizontally. */ + /* Expressed in 26.6 pixel format. */ + /* */ + /* yStrength :: How strong the glyph is emboldened vertically. */ + /* Expressed in 26.6 pixel format. */ + /* */ + /* <InOut> */ + /* bitmap :: A handle to the target bitmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The current implementation restricts `xStrength' to be less than */ + /* or equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO. */ + /* */ + /* If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, */ + /* you should call @FT_GlyphSlot_Own_Bitmap on the slot first. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Embolden( FT_Library library, + FT_Bitmap* bitmap, + FT_Pos xStrength, + FT_Pos yStrength ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Convert */ + /* */ + /* <Description> */ + /* Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, or 8bpp to a */ + /* bitmap object with depth 8bpp, making the number of used bytes per */ + /* line (a.k.a. the `pitch') a multiple of `alignment'. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* source :: The source bitmap. */ + /* */ + /* alignment :: The pitch of the bitmap is a multiple of this */ + /* parameter. Common values are 1, 2, or 4. */ + /* */ + /* <Output> */ + /* target :: The target bitmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* It is possible to call @FT_Bitmap_Convert multiple times without */ + /* calling @FT_Bitmap_Done (the memory is simply reallocated). */ + /* */ + /* Use @FT_Bitmap_Done to finally remove the bitmap object. */ + /* */ + /* The `library' argument is taken to have access to FreeType's */ + /* memory handling functions. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Convert( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target, + FT_Int alignment ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GlyphSlot_Own_Bitmap */ + /* */ + /* <Description> */ + /* Make sure that a glyph slot owns `slot->bitmap'. */ + /* */ + /* <Input> */ + /* slot :: The glyph slot. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function is to be used in combination with */ + /* @FT_Bitmap_Embolden. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Done */ + /* */ + /* <Description> */ + /* Destroy a bitmap object created with @FT_Bitmap_New. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* bitmap :: The bitmap object to be freed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `library' argument is taken to have access to FreeType's */ + /* memory handling functions. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Done( FT_Library library, + FT_Bitmap *bitmap ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTBITMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftbzip2.h b/uppsrc/plugin/FT_fontsys/ftbzip2.h new file mode 100644 index 000000000..c966056e0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftbzip2.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* ftbzip2.h */ +/* */ +/* Bzip2-compressed stream support. */ +/* */ +/* Copyright 2010 by */ +/* Joel Klinghed. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBZIP2_H__ +#define __FTBZIP2_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* bzip2 */ + /* */ + /* <Title> */ + /* BZIP2 Streams */ + /* */ + /* <Abstract> */ + /* Using bzip2-compressed font files. */ + /* */ + /* <Description> */ + /* This section contains the declaration of Bzip2-specific functions. */ + /* */ + /*************************************************************************/ + + + /************************************************************************ + * + * @function: + * FT_Stream_OpenBzip2 + * + * @description: + * Open a new stream to parse bzip2-compressed font files. This is + * mainly used to support the compressed `*.pcf.bz2' fonts that come + * with XFree86. + * + * @input: + * stream :: + * The target embedding stream. + * + * source :: + * The source stream. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source stream must be opened _before_ calling this function. + * + * Calling the internal function `FT_Stream_Close' on the new stream will + * *not* call `FT_Stream_Close' on the source stream. None of the stream + * objects will be released to the heap. + * + * The stream implementation is very basic and resets the decompression + * process each time seeking backwards is needed within the stream. + * + * In certain builds of the library, bzip2 compression recognition is + * automatically handled when calling @FT_New_Face or @FT_Open_Face. + * This means that if no font driver is capable of handling the raw + * compressed file, the library will try to open a bzip2 compressed stream + * from it and re-open the face with it. + * + * This function may return `FT_Err_Unimplemented_Feature' if your build + * of FreeType was not compiled with bzip2 support. + */ + FT_EXPORT( FT_Error ) + FT_Stream_OpenBzip2( FT_Stream stream, + FT_Stream source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTBZIP2_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftcache.h b/uppsrc/plugin/FT_fontsys/ftcache.h new file mode 100644 index 000000000..85d2b7625 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftcache.h @@ -0,0 +1,1140 @@ +/***************************************************************************/ +/* */ +/* ftcache.h */ +/* */ +/* FreeType Cache subsystem (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCACHE_H__ +#define __FTCACHE_H__ + + +#include "ft2build.h" +#include FT_GLYPH_H + + +FT_BEGIN_HEADER + + + /************************************************************************* + * + * <Section> + * cache_subsystem + * + * <Title> + * Cache Sub-System + * + * <Abstract> + * How to cache face, size, and glyph data with FreeType~2. + * + * <Description> + * This section describes the FreeType~2 cache sub-system, which is used + * to limit the number of concurrently opened @FT_Face and @FT_Size + * objects, as well as caching information like character maps and glyph + * images while limiting their maximum memory usage. + * + * Note that all types and functions begin with the `FTC_' prefix. + * + * The cache is highly portable and thus doesn't know anything about the + * fonts installed on your system, or how to access them. This implies + * the following scheme: + * + * First, available or installed font faces are uniquely identified by + * @FTC_FaceID values, provided to the cache by the client. Note that + * the cache only stores and compares these values, and doesn't try to + * interpret them in any way. + * + * Second, the cache calls, only when needed, a client-provided function + * to convert an @FTC_FaceID into a new @FT_Face object. The latter is + * then completely managed by the cache, including its termination + * through @FT_Done_Face. To monitor termination of face objects, the + * finalizer callback in the `generic' field of the @FT_Face object can + * be used, which might also be used to store the @FTC_FaceID of the + * face. + * + * Clients are free to map face IDs to anything else. The most simple + * usage is to associate them to a (pathname,face_index) pair that is + * used to call @FT_New_Face. However, more complex schemes are also + * possible. + * + * Note that for the cache to work correctly, the face ID values must be + * *persistent*, which means that the contents they point to should not + * change at runtime, or that their value should not become invalid. + * + * If this is unavoidable (e.g., when a font is uninstalled at runtime), + * you should call @FTC_Manager_RemoveFaceID as soon as possible, to let + * the cache get rid of any references to the old @FTC_FaceID it may + * keep internally. Failure to do so will lead to incorrect behaviour + * or even crashes. + * + * To use the cache, start with calling @FTC_Manager_New to create a new + * @FTC_Manager object, which models a single cache instance. You can + * then look up @FT_Face and @FT_Size objects with + * @FTC_Manager_LookupFace and @FTC_Manager_LookupSize, respectively. + * + * If you want to use the charmap caching, call @FTC_CMapCache_New, then + * later use @FTC_CMapCache_Lookup to perform the equivalent of + * @FT_Get_Char_Index, only much faster. + * + * If you want to use the @FT_Glyph caching, call @FTC_ImageCache, then + * later use @FTC_ImageCache_Lookup to retrieve the corresponding + * @FT_Glyph objects from the cache. + * + * If you need lots of small bitmaps, it is much more memory efficient + * to call @FTC_SBitCache_New followed by @FTC_SBitCache_Lookup. This + * returns @FTC_SBitRec structures, which are used to store small + * bitmaps directly. (A small bitmap is one whose metrics and + * dimensions all fit into 8-bit integers). + * + * We hope to also provide a kerning cache in the near future. + * + * + * <Order> + * FTC_Manager + * FTC_FaceID + * FTC_Face_Requester + * + * FTC_Manager_New + * FTC_Manager_Reset + * FTC_Manager_Done + * FTC_Manager_LookupFace + * FTC_Manager_LookupSize + * FTC_Manager_RemoveFaceID + * + * FTC_Node + * FTC_Node_Unref + * + * FTC_ImageCache + * FTC_ImageCache_New + * FTC_ImageCache_Lookup + * + * FTC_SBit + * FTC_SBitCache + * FTC_SBitCache_New + * FTC_SBitCache_Lookup + * + * FTC_CMapCache + * FTC_CMapCache_New + * FTC_CMapCache_Lookup + * + *************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BASIC TYPE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: FTC_FaceID + * + * @description: + * An opaque pointer type that is used to identity face objects. The + * contents of such objects is application-dependent. + * + * These pointers are typically used to point to a user-defined + * structure containing a font file path, and face index. + * + * @note: + * Never use NULL as a valid @FTC_FaceID. + * + * Face IDs are passed by the client to the cache manager, which calls, + * when needed, the @FTC_Face_Requester to translate them into new + * @FT_Face objects. + * + * If the content of a given face ID changes at runtime, or if the value + * becomes invalid (e.g., when uninstalling a font), you should + * immediately call @FTC_Manager_RemoveFaceID before any other cache + * function. + * + * Failure to do so will result in incorrect behaviour or even + * memory leaks and crashes. + */ + typedef FT_Pointer FTC_FaceID; + + + /************************************************************************ + * + * @functype: + * FTC_Face_Requester + * + * @description: + * A callback function provided by client applications. It is used by + * the cache manager to translate a given @FTC_FaceID into a new valid + * @FT_Face object, on demand. + * + * <Input> + * face_id :: + * The face ID to resolve. + * + * library :: + * A handle to a FreeType library object. + * + * req_data :: + * Application-provided request data (see note below). + * + * <Output> + * aface :: + * A new @FT_Face handle. + * + * <Return> + * FreeType error code. 0~means success. + * + * <Note> + * The third parameter `req_data' is the same as the one passed by the + * client when @FTC_Manager_New is called. + * + * The face requester should not perform funny things on the returned + * face object, like creating a new @FT_Size for it, or setting a + * transformation through @FT_Set_Transform! + */ + typedef FT_Error + (*FTC_Face_Requester)( FTC_FaceID face_id, + FT_Library library, + FT_Pointer request_data, + FT_Face* aface ); + + /* */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* these macros are incompatible with LLP64, should not be used */ + +#define FT_POINTER_TO_ULONG( p ) ( (FT_ULong)(FT_Pointer)(p) ) + +#define FTC_FACE_ID_HASH( i ) \ + ((FT_UInt32)(( FT_POINTER_TO_ULONG( i ) >> 3 ) ^ \ + ( FT_POINTER_TO_ULONG( i ) << 7 ) ) ) + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE MANAGER OBJECT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_Manager */ + /* */ + /* <Description> */ + /* This object corresponds to one instance of the cache-subsystem. */ + /* It is used to cache one or more @FT_Face objects, along with */ + /* corresponding @FT_Size objects. */ + /* */ + /* The manager intentionally limits the total number of opened */ + /* @FT_Face and @FT_Size objects to control memory usage. See the */ + /* `max_faces' and `max_sizes' parameters of @FTC_Manager_New. */ + /* */ + /* The manager is also used to cache `nodes' of various types while */ + /* limiting their total memory usage. */ + /* */ + /* All limitations are enforced by keeping lists of managed objects */ + /* in most-recently-used order, and flushing old nodes to make room */ + /* for new ones. */ + /* */ + typedef struct FTC_ManagerRec_* FTC_Manager; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_Node */ + /* */ + /* <Description> */ + /* An opaque handle to a cache node object. Each cache node is */ + /* reference-counted. A node with a count of~0 might be flushed */ + /* out of a full cache whenever a lookup request is performed. */ + /* */ + /* If you look up nodes, you have the ability to `acquire' them, */ + /* i.e., to increment their reference count. This will prevent the */ + /* node from being flushed out of the cache until you explicitly */ + /* `release' it (see @FTC_Node_Unref). */ + /* */ + /* See also @FTC_SBitCache_Lookup and @FTC_ImageCache_Lookup. */ + /* */ + typedef struct FTC_NodeRec_* FTC_Node; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_New */ + /* */ + /* <Description> */ + /* Create a new cache manager. */ + /* */ + /* <Input> */ + /* library :: The parent FreeType library handle to use. */ + /* */ + /* max_faces :: Maximum number of opened @FT_Face objects managed by */ + /* this cache instance. Use~0 for defaults. */ + /* */ + /* max_sizes :: Maximum number of opened @FT_Size objects managed by */ + /* this cache instance. Use~0 for defaults. */ + /* */ + /* max_bytes :: Maximum number of bytes to use for cached data nodes. */ + /* Use~0 for defaults. Note that this value does not */ + /* account for managed @FT_Face and @FT_Size objects. */ + /* */ + /* requester :: An application-provided callback used to translate */ + /* face IDs into real @FT_Face objects. */ + /* */ + /* req_data :: A generic pointer that is passed to the requester */ + /* each time it is called (see @FTC_Face_Requester). */ + /* */ + /* <Output> */ + /* amanager :: A handle to a new manager object. 0~in case of */ + /* failure. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_Manager_New( FT_Library library, + FT_UInt max_faces, + FT_UInt max_sizes, + FT_ULong max_bytes, + FTC_Face_Requester requester, + FT_Pointer req_data, + FTC_Manager *amanager ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_Reset */ + /* */ + /* <Description> */ + /* Empty a given cache manager. This simply gets rid of all the */ + /* currently cached @FT_Face and @FT_Size objects within the manager. */ + /* */ + /* <InOut> */ + /* manager :: A handle to the manager. */ + /* */ + FT_EXPORT( void ) + FTC_Manager_Reset( FTC_Manager manager ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_Done */ + /* */ + /* <Description> */ + /* Destroy a given manager after emptying it. */ + /* */ + /* <Input> */ + /* manager :: A handle to the target cache manager object. */ + /* */ + FT_EXPORT( void ) + FTC_Manager_Done( FTC_Manager manager ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_LookupFace */ + /* */ + /* <Description> */ + /* Retrieve the @FT_Face object that corresponds to a given face ID */ + /* through a cache manager. */ + /* */ + /* <Input> */ + /* manager :: A handle to the cache manager. */ + /* */ + /* face_id :: The ID of the face object. */ + /* */ + /* <Output> */ + /* aface :: A handle to the face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned @FT_Face object is always owned by the manager. You */ + /* should never try to discard it yourself. */ + /* */ + /* The @FT_Face object doesn't necessarily have a current size object */ + /* (i.e., face->size can be 0). If you need a specific `font size', */ + /* use @FTC_Manager_LookupSize instead. */ + /* */ + /* Never change the face's transformation matrix (i.e., never call */ + /* the @FT_Set_Transform function) on a returned face! If you need */ + /* to transform glyphs, do it yourself after glyph loading. */ + /* */ + /* When you perform a lookup, out-of-memory errors are detected */ + /* _within_ the lookup and force incremental flushes of the cache */ + /* until enough memory is released for the lookup to succeed. */ + /* */ + /* If a lookup fails with `FT_Err_Out_Of_Memory' the cache has */ + /* already been completely flushed, and still no memory was available */ + /* for the operation. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_Manager_LookupFace( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FTC_ScalerRec */ + /* */ + /* <Description> */ + /* A structure used to describe a given character size in either */ + /* pixels or points to the cache manager. See */ + /* @FTC_Manager_LookupSize. */ + /* */ + /* <Fields> */ + /* face_id :: The source face ID. */ + /* */ + /* width :: The character width. */ + /* */ + /* height :: The character height. */ + /* */ + /* pixel :: A Boolean. If 1, the `width' and `height' fields are */ + /* interpreted as integer pixel character sizes. */ + /* Otherwise, they are expressed as 1/64th of points. */ + /* */ + /* x_res :: Only used when `pixel' is value~0 to indicate the */ + /* horizontal resolution in dpi. */ + /* */ + /* y_res :: Only used when `pixel' is value~0 to indicate the */ + /* vertical resolution in dpi. */ + /* */ + /* <Note> */ + /* This type is mainly used to retrieve @FT_Size objects through the */ + /* cache manager. */ + /* */ + typedef struct FTC_ScalerRec_ + { + FTC_FaceID face_id; + FT_UInt width; + FT_UInt height; + FT_Int pixel; + FT_UInt x_res; + FT_UInt y_res; + + } FTC_ScalerRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FTC_Scaler */ + /* */ + /* <Description> */ + /* A handle to an @FTC_ScalerRec structure. */ + /* */ + typedef struct FTC_ScalerRec_* FTC_Scaler; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_LookupSize */ + /* */ + /* <Description> */ + /* Retrieve the @FT_Size object that corresponds to a given */ + /* @FTC_ScalerRec pointer through a cache manager. */ + /* */ + /* <Input> */ + /* manager :: A handle to the cache manager. */ + /* */ + /* scaler :: A scaler handle. */ + /* */ + /* <Output> */ + /* asize :: A handle to the size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned @FT_Size object is always owned by the manager. You */ + /* should never try to discard it by yourself. */ + /* */ + /* You can access the parent @FT_Face object simply as `size->face' */ + /* if you need it. Note that this object is also owned by the */ + /* manager. */ + /* */ + /* <Note> */ + /* When you perform a lookup, out-of-memory errors are detected */ + /* _within_ the lookup and force incremental flushes of the cache */ + /* until enough memory is released for the lookup to succeed. */ + /* */ + /* If a lookup fails with `FT_Err_Out_Of_Memory' the cache has */ + /* already been completely flushed, and still no memory is available */ + /* for the operation. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_Manager_LookupSize( FTC_Manager manager, + FTC_Scaler scaler, + FT_Size *asize ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Node_Unref */ + /* */ + /* <Description> */ + /* Decrement a cache node's internal reference count. When the count */ + /* reaches 0, it is not destroyed but becomes eligible for subsequent */ + /* cache flushes. */ + /* */ + /* <Input> */ + /* node :: The cache node handle. */ + /* */ + /* manager :: The cache manager handle. */ + /* */ + FT_EXPORT( void ) + FTC_Node_Unref( FTC_Node node, + FTC_Manager manager ); + + + /************************************************************************* + * + * @function: + * FTC_Manager_RemoveFaceID + * + * @description: + * A special function used to indicate to the cache manager that + * a given @FTC_FaceID is no longer valid, either because its + * content changed, or because it was deallocated or uninstalled. + * + * @input: + * manager :: + * The cache manager handle. + * + * face_id :: + * The @FTC_FaceID to be removed. + * + * @note: + * This function flushes all nodes from the cache corresponding to this + * `face_id', with the exception of nodes with a non-null reference + * count. + * + * Such nodes are however modified internally so as to never appear + * in later lookups with the same `face_id' value, and to be immediately + * destroyed when released by all their users. + * + */ + FT_EXPORT( void ) + FTC_Manager_RemoveFaceID( FTC_Manager manager, + FTC_FaceID face_id ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cache_subsystem */ + /* */ + /*************************************************************************/ + + /************************************************************************* + * + * @type: + * FTC_CMapCache + * + * @description: + * An opaque handle used to model a charmap cache. This cache is to + * hold character codes -> glyph indices mappings. + * + */ + typedef struct FTC_CMapCacheRec_* FTC_CMapCache; + + + /************************************************************************* + * + * @function: + * FTC_CMapCache_New + * + * @description: + * Create a new charmap cache. + * + * @input: + * manager :: + * A handle to the cache manager. + * + * @output: + * acache :: + * A new cache handle. NULL in case of error. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * Like all other caches, this one will be destroyed with the cache + * manager. + * + */ + FT_EXPORT( FT_Error ) + FTC_CMapCache_New( FTC_Manager manager, + FTC_CMapCache *acache ); + + + /************************************************************************ + * + * @function: + * FTC_CMapCache_Lookup + * + * @description: + * Translate a character code into a glyph index, using the charmap + * cache. + * + * @input: + * cache :: + * A charmap cache handle. + * + * face_id :: + * The source face ID. + * + * cmap_index :: + * The index of the charmap in the source face. Any negative value + * means to use the cache @FT_Face's default charmap. + * + * char_code :: + * The character code (in the corresponding charmap). + * + * @return: + * Glyph index. 0~means `no glyph'. + * + */ + FT_EXPORT( FT_UInt ) + FTC_CMapCache_Lookup( FTC_CMapCache cache, + FTC_FaceID face_id, + FT_Int cmap_index, + FT_UInt32 char_code ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cache_subsystem */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** IMAGE CACHE OBJECT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /************************************************************************* + * + * @struct: + * FTC_ImageTypeRec + * + * @description: + * A structure used to model the type of images in a glyph cache. + * + * @fields: + * face_id :: + * The face ID. + * + * width :: + * The width in pixels. + * + * height :: + * The height in pixels. + * + * flags :: + * The load flags, as in @FT_Load_Glyph. + * + */ + typedef struct FTC_ImageTypeRec_ + { + FTC_FaceID face_id; + FT_Int width; + FT_Int height; + FT_Int32 flags; + + } FTC_ImageTypeRec; + + + /************************************************************************* + * + * @type: + * FTC_ImageType + * + * @description: + * A handle to an @FTC_ImageTypeRec structure. + * + */ + typedef struct FTC_ImageTypeRec_* FTC_ImageType; + + + /* */ + + +#define FTC_IMAGE_TYPE_COMPARE( d1, d2 ) \ + ( (d1)->face_id == (d2)->face_id && \ + (d1)->width == (d2)->width && \ + (d1)->flags == (d2)->flags ) + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* this macro is incompatible with LLP64, should not be used */ + +#define FTC_IMAGE_TYPE_HASH( d ) \ + (FT_UFast)( FTC_FACE_ID_HASH( (d)->face_id ) ^ \ + ( (d)->width << 8 ) ^ (d)->height ^ \ + ( (d)->flags << 4 ) ) + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_ImageCache */ + /* */ + /* <Description> */ + /* A handle to an glyph image cache object. They are designed to */ + /* hold many distinct glyph images while not exceeding a certain */ + /* memory threshold. */ + /* */ + typedef struct FTC_ImageCacheRec_* FTC_ImageCache; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_ImageCache_New */ + /* */ + /* <Description> */ + /* Create a new glyph image cache. */ + /* */ + /* <Input> */ + /* manager :: The parent manager for the image cache. */ + /* */ + /* <Output> */ + /* acache :: A handle to the new glyph image cache object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_ImageCache_New( FTC_Manager manager, + FTC_ImageCache *acache ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_ImageCache_Lookup */ + /* */ + /* <Description> */ + /* Retrieve a given glyph image from a glyph image cache. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source glyph image cache. */ + /* */ + /* type :: A pointer to a glyph image type descriptor. */ + /* */ + /* gindex :: The glyph index to retrieve. */ + /* */ + /* <Output> */ + /* aglyph :: The corresponding @FT_Glyph object. 0~in case of */ + /* failure. */ + /* */ + /* anode :: Used to return the address of of the corresponding cache */ + /* node after incrementing its reference count (see note */ + /* below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned glyph is owned and managed by the glyph image cache. */ + /* Never try to transform or discard it manually! You can however */ + /* create a copy with @FT_Glyph_Copy and modify the new one. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the glyph image, after increasing its reference */ + /* count. This ensures that the node (as well as the @FT_Glyph) will */ + /* always be kept in the cache until you call @FTC_Node_Unref to */ + /* `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the @FT_Glyph could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + FT_EXPORT( FT_Error ) + FTC_ImageCache_Lookup( FTC_ImageCache cache, + FTC_ImageType type, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_ImageCache_LookupScaler */ + /* */ + /* <Description> */ + /* A variant of @FTC_ImageCache_Lookup that uses an @FTC_ScalerRec */ + /* to specify the face ID and its size. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source glyph image cache. */ + /* */ + /* scaler :: A pointer to a scaler descriptor. */ + /* */ + /* load_flags :: The corresponding load flags. */ + /* */ + /* gindex :: The glyph index to retrieve. */ + /* */ + /* <Output> */ + /* aglyph :: The corresponding @FT_Glyph object. 0~in case of */ + /* failure. */ + /* */ + /* anode :: Used to return the address of of the corresponding */ + /* cache node after incrementing its reference count */ + /* (see note below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned glyph is owned and managed by the glyph image cache. */ + /* Never try to transform or discard it manually! You can however */ + /* create a copy with @FT_Glyph_Copy and modify the new one. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the glyph image, after increasing its reference */ + /* count. This ensures that the node (as well as the @FT_Glyph) will */ + /* always be kept in the cache until you call @FTC_Node_Unref to */ + /* `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the @FT_Glyph could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + /* Calls to @FT_Set_Char_Size and friends have no effect on cached */ + /* glyphs; you should always use the FreeType cache API instead. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_ImageCache_LookupScaler( FTC_ImageCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ); + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_SBit */ + /* */ + /* <Description> */ + /* A handle to a small bitmap descriptor. See the @FTC_SBitRec */ + /* structure for details. */ + /* */ + typedef struct FTC_SBitRec_* FTC_SBit; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FTC_SBitRec */ + /* */ + /* <Description> */ + /* A very compact structure used to describe a small glyph bitmap. */ + /* */ + /* <Fields> */ + /* width :: The bitmap width in pixels. */ + /* */ + /* height :: The bitmap height in pixels. */ + /* */ + /* left :: The horizontal distance from the pen position to the */ + /* left bitmap border (a.k.a. `left side bearing', or */ + /* `lsb'). */ + /* */ + /* top :: The vertical distance from the pen position (on the */ + /* baseline) to the upper bitmap border (a.k.a. `top */ + /* side bearing'). The distance is positive for upwards */ + /* y~coordinates. */ + /* */ + /* format :: The format of the glyph bitmap (monochrome or gray). */ + /* */ + /* max_grays :: Maximum gray level value (in the range 1 to~255). */ + /* */ + /* pitch :: The number of bytes per bitmap line. May be positive */ + /* or negative. */ + /* */ + /* xadvance :: The horizontal advance width in pixels. */ + /* */ + /* yadvance :: The vertical advance height in pixels. */ + /* */ + /* buffer :: A pointer to the bitmap pixels. */ + /* */ + typedef struct FTC_SBitRec_ + { + FT_Byte width; + FT_Byte height; + FT_Char left; + FT_Char top; + + FT_Byte format; + FT_Byte max_grays; + FT_Short pitch; + FT_Char xadvance; + FT_Char yadvance; + + FT_Byte* buffer; + + } FTC_SBitRec; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_SBitCache */ + /* */ + /* <Description> */ + /* A handle to a small bitmap cache. These are special cache objects */ + /* used to store small glyph bitmaps (and anti-aliased pixmaps) in a */ + /* much more efficient way than the traditional glyph image cache */ + /* implemented by @FTC_ImageCache. */ + /* */ + typedef struct FTC_SBitCacheRec_* FTC_SBitCache; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_SBitCache_New */ + /* */ + /* <Description> */ + /* Create a new cache to store small glyph bitmaps. */ + /* */ + /* <Input> */ + /* manager :: A handle to the source cache manager. */ + /* */ + /* <Output> */ + /* acache :: A handle to the new sbit cache. NULL in case of error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_SBitCache_New( FTC_Manager manager, + FTC_SBitCache *acache ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_SBitCache_Lookup */ + /* */ + /* <Description> */ + /* Look up a given small glyph bitmap in a given sbit cache and */ + /* `lock' it to prevent its flushing from the cache until needed. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source sbit cache. */ + /* */ + /* type :: A pointer to the glyph image type descriptor. */ + /* */ + /* gindex :: The glyph index. */ + /* */ + /* <Output> */ + /* sbit :: A handle to a small bitmap descriptor. */ + /* */ + /* anode :: Used to return the address of of the corresponding cache */ + /* node after incrementing its reference count (see note */ + /* below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The small bitmap descriptor and its bit buffer are owned by the */ + /* cache and should never be freed by the application. They might */ + /* as well disappear from memory on the next cache lookup, so don't */ + /* treat them as persistent data. */ + /* */ + /* The descriptor's `buffer' field is set to~0 to indicate a missing */ + /* glyph bitmap. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the bitmap, after increasing its reference count. */ + /* This ensures that the node (as well as the image) will always be */ + /* kept in the cache until you call @FTC_Node_Unref to `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the bitmap could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + FT_EXPORT( FT_Error ) + FTC_SBitCache_Lookup( FTC_SBitCache cache, + FTC_ImageType type, + FT_UInt gindex, + FTC_SBit *sbit, + FTC_Node *anode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_SBitCache_LookupScaler */ + /* */ + /* <Description> */ + /* A variant of @FTC_SBitCache_Lookup that uses an @FTC_ScalerRec */ + /* to specify the face ID and its size. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source sbit cache. */ + /* */ + /* scaler :: A pointer to the scaler descriptor. */ + /* */ + /* load_flags :: The corresponding load flags. */ + /* */ + /* gindex :: The glyph index. */ + /* */ + /* <Output> */ + /* sbit :: A handle to a small bitmap descriptor. */ + /* */ + /* anode :: Used to return the address of of the corresponding */ + /* cache node after incrementing its reference count */ + /* (see note below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The small bitmap descriptor and its bit buffer are owned by the */ + /* cache and should never be freed by the application. They might */ + /* as well disappear from memory on the next cache lookup, so don't */ + /* treat them as persistent data. */ + /* */ + /* The descriptor's `buffer' field is set to~0 to indicate a missing */ + /* glyph bitmap. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the bitmap, after increasing its reference count. */ + /* This ensures that the node (as well as the image) will always be */ + /* kept in the cache until you call @FTC_Node_Unref to `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the bitmap could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + FT_EXPORT( FT_Error ) + FTC_SBitCache_LookupScaler( FTC_SBitCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FTC_SBit *sbit, + FTC_Node *anode ); + + + /* */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*@***********************************************************************/ + /* */ + /* <Struct> */ + /* FTC_FontRec */ + /* */ + /* <Description> */ + /* A simple structure used to describe a given `font' to the cache */ + /* manager. Note that a `font' is the combination of a given face */ + /* with a given character size. */ + /* */ + /* <Fields> */ + /* face_id :: The ID of the face to use. */ + /* */ + /* pix_width :: The character width in integer pixels. */ + /* */ + /* pix_height :: The character height in integer pixels. */ + /* */ + typedef struct FTC_FontRec_ + { + FTC_FaceID face_id; + FT_UShort pix_width; + FT_UShort pix_height; + + } FTC_FontRec; + + + /* */ + + +#define FTC_FONT_COMPARE( f1, f2 ) \ + ( (f1)->face_id == (f2)->face_id && \ + (f1)->pix_width == (f2)->pix_width && \ + (f1)->pix_height == (f2)->pix_height ) + + /* this macro is incompatible with LLP64, should not be used */ +#define FTC_FONT_HASH( f ) \ + (FT_UInt32)( FTC_FACE_ID_HASH((f)->face_id) ^ \ + ((f)->pix_width << 8) ^ \ + ((f)->pix_height) ) + + typedef FTC_FontRec* FTC_Font; + + + FT_EXPORT( FT_Error ) + FTC_Manager_Lookup_Face( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ); + + FT_EXPORT( FT_Error ) + FTC_Manager_Lookup_Size( FTC_Manager manager, + FTC_Font font, + FT_Face *aface, + FT_Size *asize ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* */ + +FT_END_HEADER + +#endif /* __FTCACHE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftchapters.h b/uppsrc/plugin/FT_fontsys/ftchapters.h new file mode 100644 index 000000000..6cdf54e49 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftchapters.h @@ -0,0 +1,104 @@ +/***************************************************************************/ +/* */ +/* This file defines the structure of the FreeType reference. */ +/* It is used by the python script which generates the HTML files. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* general_remarks */ +/* */ +/* <Title> */ +/* General Remarks */ +/* */ +/* <Sections> */ +/* user_allocation */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* core_api */ +/* */ +/* <Title> */ +/* Core API */ +/* */ +/* <Sections> */ +/* version */ +/* basic_types */ +/* base_interface */ +/* glyph_variants */ +/* glyph_management */ +/* mac_specific */ +/* sizes_management */ +/* header_file_macros */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* format_specific */ +/* */ +/* <Title> */ +/* Format-Specific API */ +/* */ +/* <Sections> */ +/* multiple_masters */ +/* truetype_tables */ +/* type1_tables */ +/* sfnt_names */ +/* bdf_fonts */ +/* cid_fonts */ +/* pfr_fonts */ +/* winfnt_fonts */ +/* font_formats */ +/* gasp_table */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* cache_subsystem */ +/* */ +/* <Title> */ +/* Cache Sub-System */ +/* */ +/* <Sections> */ +/* cache_subsystem */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* support_api */ +/* */ +/* <Title> */ +/* Support API */ +/* */ +/* <Sections> */ +/* computations */ +/* list_processing */ +/* outline_processing */ +/* quick_advance */ +/* bitmap_handling */ +/* raster */ +/* glyph_stroker */ +/* system_interface */ +/* module_management */ +/* gzip */ +/* lzw */ +/* bzip2 */ +/* lcd_filtering */ +/* */ +/***************************************************************************/ diff --git a/uppsrc/plugin/FT_fontsys/ftcid.h b/uppsrc/plugin/FT_fontsys/ftcid.h new file mode 100644 index 000000000..ed8a3bb99 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftcid.h @@ -0,0 +1,166 @@ +/***************************************************************************/ +/* */ +/* ftcid.h */ +/* */ +/* FreeType API for accessing CID font information (specification). */ +/* */ +/* Copyright 2007, 2009 by Dereg Clegg, Michael Toftdal. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCID_H__ +#define __FTCID_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cid_fonts */ + /* */ + /* <Title> */ + /* CID Fonts */ + /* */ + /* <Abstract> */ + /* CID-keyed font specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of CID-keyed font specific */ + /* functions. */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @function: + * FT_Get_CID_Registry_Ordering_Supplement + * + * @description: + * Retrieve the Registry/Ordering/Supplement triple (also known as the + * "R/O/S") from a CID-keyed font. + * + * @input: + * face :: + * A handle to the input face. + * + * @output: + * registry :: + * The registry, as a C~string, owned by the face. + * + * ordering :: + * The ordering, as a C~string, owned by the face. + * + * supplement :: + * The supplement. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with CID faces, returning an error + * otherwise. + * + * @since: + * 2.3.6 + */ + FT_EXPORT( FT_Error ) + FT_Get_CID_Registry_Ordering_Supplement( FT_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement); + + + /********************************************************************** + * + * @function: + * FT_Get_CID_Is_Internally_CID_Keyed + * + * @description: + * Retrieve the type of the input face, CID keyed or not. In + * constrast to the @FT_IS_CID_KEYED macro this function returns + * successfully also for CID-keyed fonts in an SNFT wrapper. + * + * @input: + * face :: + * A handle to the input face. + * + * @output: + * is_cid :: + * The type of the face as an @FT_Bool. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with CID faces and OpenType fonts, + * returning an error otherwise. + * + * @since: + * 2.3.9 + */ + FT_EXPORT( FT_Error ) + FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face, + FT_Bool *is_cid ); + + + /********************************************************************** + * + * @function: + * FT_Get_CID_From_Glyph_Index + * + * @description: + * Retrieve the CID of the input glyph index. + * + * @input: + * face :: + * A handle to the input face. + * + * glyph_index :: + * The input glyph index. + * + * @output: + * cid :: + * The CID as an @FT_UInt. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with CID faces and OpenType fonts, + * returning an error otherwise. + * + * @since: + * 2.3.9 + */ + FT_EXPORT( FT_Error ) + FT_Get_CID_From_Glyph_Index( FT_Face face, + FT_UInt glyph_index, + FT_UInt *cid ); + + /* */ + +FT_END_HEADER + +#endif /* __FTCID_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/fterrdef.h b/uppsrc/plugin/FT_fontsys/fterrdef.h new file mode 100644 index 000000000..d4e7287f2 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/fterrdef.h @@ -0,0 +1,243 @@ +/***************************************************************************/ +/* */ +/* fterrdef.h */ +/* */ +/* FreeType error codes (specification). */ +/* */ +/* Copyright 2002, 2004, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** LIST OF ERROR CODES/MESSAGES *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + + /* You need to define both FT_ERRORDEF_ and FT_NOERRORDEF_ before */ + /* including this file. */ + + + /* generic errors */ + + FT_NOERRORDEF_( Ok, 0x00, \ + "no error" ) + + FT_ERRORDEF_( Cannot_Open_Resource, 0x01, \ + "cannot open resource" ) + FT_ERRORDEF_( Unknown_File_Format, 0x02, \ + "unknown file format" ) + FT_ERRORDEF_( Invalid_File_Format, 0x03, \ + "broken file" ) + FT_ERRORDEF_( Invalid_Version, 0x04, \ + "invalid FreeType version" ) + FT_ERRORDEF_( Lower_Module_Version, 0x05, \ + "module version is too low" ) + FT_ERRORDEF_( Invalid_Argument, 0x06, \ + "invalid argument" ) + FT_ERRORDEF_( Unimplemented_Feature, 0x07, \ + "unimplemented feature" ) + FT_ERRORDEF_( Invalid_Table, 0x08, \ + "broken table" ) + FT_ERRORDEF_( Invalid_Offset, 0x09, \ + "broken offset within table" ) + FT_ERRORDEF_( Array_Too_Large, 0x0A, \ + "array allocation size too large" ) + + /* glyph/character errors */ + + FT_ERRORDEF_( Invalid_Glyph_Index, 0x10, \ + "invalid glyph index" ) + FT_ERRORDEF_( Invalid_Character_Code, 0x11, \ + "invalid character code" ) + FT_ERRORDEF_( Invalid_Glyph_Format, 0x12, \ + "unsupported glyph image format" ) + FT_ERRORDEF_( Cannot_Render_Glyph, 0x13, \ + "cannot render this glyph format" ) + FT_ERRORDEF_( Invalid_Outline, 0x14, \ + "invalid outline" ) + FT_ERRORDEF_( Invalid_Composite, 0x15, \ + "invalid composite glyph" ) + FT_ERRORDEF_( Too_Many_Hints, 0x16, \ + "too many hints" ) + FT_ERRORDEF_( Invalid_Pixel_Size, 0x17, \ + "invalid pixel size" ) + + /* handle errors */ + + FT_ERRORDEF_( Invalid_Handle, 0x20, \ + "invalid object handle" ) + FT_ERRORDEF_( Invalid_Library_Handle, 0x21, \ + "invalid library handle" ) + FT_ERRORDEF_( Invalid_Driver_Handle, 0x22, \ + "invalid module handle" ) + FT_ERRORDEF_( Invalid_Face_Handle, 0x23, \ + "invalid face handle" ) + FT_ERRORDEF_( Invalid_Size_Handle, 0x24, \ + "invalid size handle" ) + FT_ERRORDEF_( Invalid_Slot_Handle, 0x25, \ + "invalid glyph slot handle" ) + FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26, \ + "invalid charmap handle" ) + FT_ERRORDEF_( Invalid_Cache_Handle, 0x27, \ + "invalid cache manager handle" ) + FT_ERRORDEF_( Invalid_Stream_Handle, 0x28, \ + "invalid stream handle" ) + + /* driver errors */ + + FT_ERRORDEF_( Too_Many_Drivers, 0x30, \ + "too many modules" ) + FT_ERRORDEF_( Too_Many_Extensions, 0x31, \ + "too many extensions" ) + + /* memory errors */ + + FT_ERRORDEF_( Out_Of_Memory, 0x40, \ + "out of memory" ) + FT_ERRORDEF_( Unlisted_Object, 0x41, \ + "unlisted object" ) + + /* stream errors */ + + FT_ERRORDEF_( Cannot_Open_Stream, 0x51, \ + "cannot open stream" ) + FT_ERRORDEF_( Invalid_Stream_Seek, 0x52, \ + "invalid stream seek" ) + FT_ERRORDEF_( Invalid_Stream_Skip, 0x53, \ + "invalid stream skip" ) + FT_ERRORDEF_( Invalid_Stream_Read, 0x54, \ + "invalid stream read" ) + FT_ERRORDEF_( Invalid_Stream_Operation, 0x55, \ + "invalid stream operation" ) + FT_ERRORDEF_( Invalid_Frame_Operation, 0x56, \ + "invalid frame operation" ) + FT_ERRORDEF_( Nested_Frame_Access, 0x57, \ + "nested frame access" ) + FT_ERRORDEF_( Invalid_Frame_Read, 0x58, \ + "invalid frame read" ) + + /* raster errors */ + + FT_ERRORDEF_( Raster_Uninitialized, 0x60, \ + "raster uninitialized" ) + FT_ERRORDEF_( Raster_Corrupted, 0x61, \ + "raster corrupted" ) + FT_ERRORDEF_( Raster_Overflow, 0x62, \ + "raster overflow" ) + FT_ERRORDEF_( Raster_Negative_Height, 0x63, \ + "negative height while rastering" ) + + /* cache errors */ + + FT_ERRORDEF_( Too_Many_Caches, 0x70, \ + "too many registered caches" ) + + /* TrueType and SFNT errors */ + + FT_ERRORDEF_( Invalid_Opcode, 0x80, \ + "invalid opcode" ) + FT_ERRORDEF_( Too_Few_Arguments, 0x81, \ + "too few arguments" ) + FT_ERRORDEF_( Stack_Overflow, 0x82, \ + "stack overflow" ) + FT_ERRORDEF_( Code_Overflow, 0x83, \ + "code overflow" ) + FT_ERRORDEF_( Bad_Argument, 0x84, \ + "bad argument" ) + FT_ERRORDEF_( Divide_By_Zero, 0x85, \ + "division by zero" ) + FT_ERRORDEF_( Invalid_Reference, 0x86, \ + "invalid reference" ) + FT_ERRORDEF_( Debug_OpCode, 0x87, \ + "found debug opcode" ) + FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88, \ + "found ENDF opcode in execution stream" ) + FT_ERRORDEF_( Nested_DEFS, 0x89, \ + "nested DEFS" ) + FT_ERRORDEF_( Invalid_CodeRange, 0x8A, \ + "invalid code range" ) + FT_ERRORDEF_( Execution_Too_Long, 0x8B, \ + "execution context too long" ) + FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C, \ + "too many function definitions" ) + FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D, \ + "too many instruction definitions" ) + FT_ERRORDEF_( Table_Missing, 0x8E, \ + "SFNT font table missing" ) + FT_ERRORDEF_( Horiz_Header_Missing, 0x8F, \ + "horizontal header (hhea) table missing" ) + FT_ERRORDEF_( Locations_Missing, 0x90, \ + "locations (loca) table missing" ) + FT_ERRORDEF_( Name_Table_Missing, 0x91, \ + "name table missing" ) + FT_ERRORDEF_( CMap_Table_Missing, 0x92, \ + "character map (cmap) table missing" ) + FT_ERRORDEF_( Hmtx_Table_Missing, 0x93, \ + "horizontal metrics (hmtx) table missing" ) + FT_ERRORDEF_( Post_Table_Missing, 0x94, \ + "PostScript (post) table missing" ) + FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95, \ + "invalid horizontal metrics" ) + FT_ERRORDEF_( Invalid_CharMap_Format, 0x96, \ + "invalid character map (cmap) format" ) + FT_ERRORDEF_( Invalid_PPem, 0x97, \ + "invalid ppem value" ) + FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98, \ + "invalid vertical metrics" ) + FT_ERRORDEF_( Could_Not_Find_Context, 0x99, \ + "could not find context" ) + FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A, \ + "invalid PostScript (post) table format" ) + FT_ERRORDEF_( Invalid_Post_Table, 0x9B, \ + "invalid PostScript (post) table" ) + + /* CFF, CID, and Type 1 errors */ + + FT_ERRORDEF_( Syntax_Error, 0xA0, \ + "opcode syntax error" ) + FT_ERRORDEF_( Stack_Underflow, 0xA1, \ + "argument stack underflow" ) + FT_ERRORDEF_( Ignore, 0xA2, \ + "ignore" ) + FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3, \ + "no Unicode glyph name found" ) + + /* BDF errors */ + + FT_ERRORDEF_( Missing_Startfont_Field, 0xB0, \ + "`STARTFONT' field missing" ) + FT_ERRORDEF_( Missing_Font_Field, 0xB1, \ + "`FONT' field missing" ) + FT_ERRORDEF_( Missing_Size_Field, 0xB2, \ + "`SIZE' field missing" ) + FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3, \ + "`FONTBOUNDINGBOX' field missing" ) + FT_ERRORDEF_( Missing_Chars_Field, 0xB4, \ + "`CHARS' field missing" ) + FT_ERRORDEF_( Missing_Startchar_Field, 0xB5, \ + "`STARTCHAR' field missing" ) + FT_ERRORDEF_( Missing_Encoding_Field, 0xB6, \ + "`ENCODING' field missing" ) + FT_ERRORDEF_( Missing_Bbx_Field, 0xB7, \ + "`BBX' field missing" ) + FT_ERRORDEF_( Bbx_Too_Big, 0xB8, \ + "`BBX' too big" ) + FT_ERRORDEF_( Corrupted_Font_Header, 0xB9, \ + "Font header corrupted or missing fields" ) + FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA, \ + "Font glyphs corrupted or missing fields" ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/fterrors.h b/uppsrc/plugin/FT_fontsys/fterrors.h new file mode 100644 index 000000000..6600dadd0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/fterrors.h @@ -0,0 +1,206 @@ +/***************************************************************************/ +/* */ +/* fterrors.h */ +/* */ +/* FreeType error code handling (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This special header file is used to define the handling of FT2 */ + /* enumeration constants. It can also be used to generate error message */ + /* strings with a small macro trick explained below. */ + /* */ + /* I - Error Formats */ + /* ----------------- */ + /* */ + /* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */ + /* defined in ftoption.h in order to make the higher byte indicate */ + /* the module where the error has happened (this is not compatible */ + /* with standard builds of FreeType 2). You can then use the macro */ + /* FT_ERROR_BASE macro to extract the generic error code from an */ + /* FT_Error value. */ + /* */ + /* */ + /* II - Error Message strings */ + /* -------------------------- */ + /* */ + /* The error definitions below are made through special macros that */ + /* allow client applications to build a table of error message strings */ + /* if they need it. The strings are not included in a normal build of */ + /* FreeType 2 to save space (most client applications do not use */ + /* them). */ + /* */ + /* To do so, you have to define the following macros before including */ + /* this file: */ + /* */ + /* FT_ERROR_START_LIST :: */ + /* This macro is called before anything else to define the start of */ + /* the error list. It is followed by several FT_ERROR_DEF calls */ + /* (see below). */ + /* */ + /* FT_ERROR_DEF( e, v, s ) :: */ + /* This macro is called to define one single error. */ + /* `e' is the error code identifier (e.g. FT_Err_Invalid_Argument). */ + /* `v' is the error numerical value. */ + /* `s' is the corresponding error string. */ + /* */ + /* FT_ERROR_END_LIST :: */ + /* This macro ends the list. */ + /* */ + /* Additionally, you have to undefine __FTERRORS_H__ before #including */ + /* this file. */ + /* */ + /* Here is a simple example: */ + /* */ + /* { */ + /* #undef __FTERRORS_H__ */ + /* #define FT_ERRORDEF( e, v, s ) { e, s }, */ + /* #define FT_ERROR_START_LIST { */ + /* #define FT_ERROR_END_LIST { 0, 0 } }; */ + /* */ + /* const struct */ + /* { */ + /* int err_code; */ + /* const char* err_msg; */ + /* } ft_errors[] = */ + /* */ + /* #include FT_ERRORS_H */ + /* } */ + /* */ + /*************************************************************************/ + + +#ifndef __FTERRORS_H__ +#define __FTERRORS_H__ + + + /* include module base error codes */ +#include FT_MODULE_ERRORS_H + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** SETUP MACROS *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#undef FT_NEED_EXTERN_C + +#undef FT_ERR_XCAT +#undef FT_ERR_CAT + +#define FT_ERR_XCAT( x, y ) x ## y +#define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y ) + + + /* FT_ERR_PREFIX is used as a prefix for error identifiers. */ + /* By default, we use `FT_Err_'. */ + /* */ +#ifndef FT_ERR_PREFIX +#define FT_ERR_PREFIX FT_Err_ +#endif + + + /* FT_ERR_BASE is used as the base for module-specific errors. */ + /* */ +#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS + +#ifndef FT_ERR_BASE +#define FT_ERR_BASE FT_Mod_Err_Base +#endif + +#else + +#undef FT_ERR_BASE +#define FT_ERR_BASE 0 + +#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */ + + + /* If FT_ERRORDEF is not defined, we need to define a simple */ + /* enumeration type. */ + /* */ +#ifndef FT_ERRORDEF + +#define FT_ERRORDEF( e, v, s ) e = v, +#define FT_ERROR_START_LIST enum { +#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) }; + +#ifdef __cplusplus +#define FT_NEED_EXTERN_C + extern "C" { +#endif + +#endif /* !FT_ERRORDEF */ + + + /* this macro is used to define an error */ +#define FT_ERRORDEF_( e, v, s ) \ + FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s ) + + /* this is only used for <module>_Err_Ok, which must be 0! */ +#define FT_NOERRORDEF_( e, v, s ) \ + FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s ) + + +#ifdef FT_ERROR_START_LIST + FT_ERROR_START_LIST +#endif + + + /* now include the error codes */ +#include FT_ERROR_DEFINITIONS_H + + +#ifdef FT_ERROR_END_LIST + FT_ERROR_END_LIST +#endif + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** SIMPLE CLEANUP *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + +#ifdef FT_NEED_EXTERN_C + } +#endif + +#undef FT_ERROR_START_LIST +#undef FT_ERROR_END_LIST + +#undef FT_ERRORDEF +#undef FT_ERRORDEF_ +#undef FT_NOERRORDEF_ + +#undef FT_NEED_EXTERN_C +#undef FT_ERR_CONCAT +#undef FT_ERR_BASE + + /* FT_KEEP_ERR_PREFIX is needed for ftvalid.h */ +#ifndef FT_KEEP_ERR_PREFIX +#undef FT_ERR_PREFIX +#endif + +#endif /* __FTERRORS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftgasp.h b/uppsrc/plugin/FT_fontsys/ftgasp.h new file mode 100644 index 000000000..4b66537d5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftgasp.h @@ -0,0 +1,128 @@ +/***************************************************************************/ +/* */ +/* ftgasp.h */ +/* */ +/* Access of TrueType's `gasp' table (specification). */ +/* */ +/* Copyright 2007, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef _FT_GASP_H_ +#define _FT_GASP_H_ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + + /*************************************************************************** + * + * @section: + * gasp_table + * + * @title: + * Gasp Table + * + * @abstract: + * Retrieving TrueType `gasp' table entries. + * + * @description: + * The function @FT_Get_Gasp can be used to query a TrueType or OpenType + * font for specific entries in its `gasp' table, if any. This is + * mainly useful when implementing native TrueType hinting with the + * bytecode interpreter to duplicate the Windows text rendering results. + */ + + /************************************************************************* + * + * @enum: + * FT_GASP_XXX + * + * @description: + * A list of values and/or bit-flags returned by the @FT_Get_Gasp + * function. + * + * @values: + * FT_GASP_NO_TABLE :: + * This special value means that there is no GASP table in this face. + * It is up to the client to decide what to do. + * + * FT_GASP_DO_GRIDFIT :: + * Grid-fitting and hinting should be performed at the specified ppem. + * This *really* means TrueType bytecode interpretation. If this bit + * is not set, no hinting gets applied. + * + * FT_GASP_DO_GRAY :: + * Anti-aliased rendering should be performed at the specified ppem. + * If not set, do monochrome rendering. + * + * FT_GASP_SYMMETRIC_SMOOTHING :: + * If set, smoothing along multiple axes must be used with ClearType. + * + * FT_GASP_SYMMETRIC_GRIDFIT :: + * Grid-fitting must be used with ClearType's symmetric smoothing. + * + * @note: + * The bit-flags `FT_GASP_DO_GRIDFIT' and `FT_GASP_DO_GRAY' are to be + * used for standard font rasterization only. Independently of that, + * `FT_GASP_SYMMETRIC_SMOOTHING' and `FT_GASP_SYMMETRIC_GRIDFIT' are to + * be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT' and + * `FT_GASP_DO_GRAY' are consequently ignored). + * + * `ClearType' is Microsoft's implementation of LCD rendering, partly + * protected by patents. + * + * @since: + * 2.3.0 + */ +#define FT_GASP_NO_TABLE -1 +#define FT_GASP_DO_GRIDFIT 0x01 +#define FT_GASP_DO_GRAY 0x02 +#define FT_GASP_SYMMETRIC_SMOOTHING 0x08 +#define FT_GASP_SYMMETRIC_GRIDFIT 0x10 + + + /************************************************************************* + * + * @func: + * FT_Get_Gasp + * + * @description: + * Read the `gasp' table from a TrueType or OpenType font file and + * return the entry corresponding to a given character pixel size. + * + * @input: + * face :: The source face handle. + * ppem :: The vertical character pixel size. + * + * @return: + * Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no + * `gasp' table in the face. + * + * @since: + * 2.3.0 + */ + FT_EXPORT( FT_Int ) + FT_Get_Gasp( FT_Face face, + FT_UInt ppem ); + +/* */ + +#endif /* _FT_GASP_H_ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftglyph.h b/uppsrc/plugin/FT_fontsys/ftglyph.h new file mode 100644 index 000000000..ac02c7c6f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftglyph.h @@ -0,0 +1,620 @@ +/***************************************************************************/ +/* */ +/* ftglyph.h */ +/* */ +/* FreeType convenience functions to handle glyphs (specification). */ +/* */ +/* Copyright 1996-2003, 2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file contains the definition of several convenience functions */ + /* that can be used by client applications to easily retrieve glyph */ + /* bitmaps and outlines from a given face. */ + /* */ + /* These functions should be optional if you are writing a font server */ + /* or text layout engine on top of FreeType. However, they are pretty */ + /* handy for many other simple uses of the library. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTGLYPH_H__ +#define __FTGLYPH_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* glyph_management */ + /* */ + /* <Title> */ + /* Glyph Management */ + /* */ + /* <Abstract> */ + /* Generic interface to manage individual glyph data. */ + /* */ + /* <Description> */ + /* This section contains definitions used to manage glyph data */ + /* through generic FT_Glyph objects. Each of them can contain a */ + /* bitmap, a vector outline, or even images in other formats. */ + /* */ + /*************************************************************************/ + + + /* forward declaration to a private type */ + typedef struct FT_Glyph_Class_ FT_Glyph_Class; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Glyph */ + /* */ + /* <Description> */ + /* Handle to an object used to model generic glyph images. It is a */ + /* pointer to the @FT_GlyphRec structure and can contain a glyph */ + /* bitmap or pointer. */ + /* */ + /* <Note> */ + /* Glyph objects are not owned by the library. You must thus release */ + /* them manually (through @FT_Done_Glyph) _before_ calling */ + /* @FT_Done_FreeType. */ + /* */ + typedef struct FT_GlyphRec_* FT_Glyph; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_GlyphRec */ + /* */ + /* <Description> */ + /* The root glyph structure contains a given glyph image plus its */ + /* advance width in 16.16 fixed float format. */ + /* */ + /* <Fields> */ + /* library :: A handle to the FreeType library object. */ + /* */ + /* clazz :: A pointer to the glyph's class. Private. */ + /* */ + /* format :: The format of the glyph's image. */ + /* */ + /* advance :: A 16.16 vector that gives the glyph's advance width. */ + /* */ + typedef struct FT_GlyphRec_ + { + FT_Library library; + const FT_Glyph_Class* clazz; + FT_Glyph_Format format; + FT_Vector advance; + + } FT_GlyphRec; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_BitmapGlyph */ + /* */ + /* <Description> */ + /* A handle to an object used to model a bitmap glyph image. This is */ + /* a sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec. */ + /* */ + typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_BitmapGlyphRec */ + /* */ + /* <Description> */ + /* A structure used for bitmap glyph images. This really is a */ + /* `sub-class' of @FT_GlyphRec. */ + /* */ + /* <Fields> */ + /* root :: The root @FT_Glyph fields. */ + /* */ + /* left :: The left-side bearing, i.e., the horizontal distance */ + /* from the current pen position to the left border of the */ + /* glyph bitmap. */ + /* */ + /* top :: The top-side bearing, i.e., the vertical distance from */ + /* the current pen position to the top border of the glyph */ + /* bitmap. This distance is positive for upwards~y! */ + /* */ + /* bitmap :: A descriptor for the bitmap. */ + /* */ + /* <Note> */ + /* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have */ + /* `glyph->format == FT_GLYPH_FORMAT_BITMAP'. This lets you access */ + /* the bitmap's contents easily. */ + /* */ + /* The corresponding pixel buffer is always owned by @FT_BitmapGlyph */ + /* and is thus created and destroyed with it. */ + /* */ + typedef struct FT_BitmapGlyphRec_ + { + FT_GlyphRec root; + FT_Int left; + FT_Int top; + FT_Bitmap bitmap; + + } FT_BitmapGlyphRec; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_OutlineGlyph */ + /* */ + /* <Description> */ + /* A handle to an object used to model an outline glyph image. This */ + /* is a sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec. */ + /* */ + typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_OutlineGlyphRec */ + /* */ + /* <Description> */ + /* A structure used for outline (vectorial) glyph images. This */ + /* really is a `sub-class' of @FT_GlyphRec. */ + /* */ + /* <Fields> */ + /* root :: The root @FT_Glyph fields. */ + /* */ + /* outline :: A descriptor for the outline. */ + /* */ + /* <Note> */ + /* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have */ + /* `glyph->format == FT_GLYPH_FORMAT_OUTLINE'. This lets you access */ + /* the outline's content easily. */ + /* */ + /* As the outline is extracted from a glyph slot, its coordinates are */ + /* expressed normally in 26.6 pixels, unless the flag */ + /* @FT_LOAD_NO_SCALE was used in @FT_Load_Glyph() or @FT_Load_Char(). */ + /* */ + /* The outline's tables are always owned by the object and are */ + /* destroyed with it. */ + /* */ + typedef struct FT_OutlineGlyphRec_ + { + FT_GlyphRec root; + FT_Outline outline; + + } FT_OutlineGlyphRec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Glyph */ + /* */ + /* <Description> */ + /* A function used to extract a glyph image from a slot. Note that */ + /* the created @FT_Glyph object must be released with @FT_Done_Glyph. */ + /* */ + /* <Input> */ + /* slot :: A handle to the source glyph slot. */ + /* */ + /* <Output> */ + /* aglyph :: A handle to the glyph object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Glyph( FT_GlyphSlot slot, + FT_Glyph *aglyph ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_Copy */ + /* */ + /* <Description> */ + /* A function used to copy a glyph image. Note that the created */ + /* @FT_Glyph object must be released with @FT_Done_Glyph. */ + /* */ + /* <Input> */ + /* source :: A handle to the source glyph object. */ + /* */ + /* <Output> */ + /* target :: A handle to the target glyph object. 0~in case of */ + /* error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Glyph_Copy( FT_Glyph source, + FT_Glyph *target ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_Transform */ + /* */ + /* <Description> */ + /* Transform a glyph image if its format is scalable. */ + /* */ + /* <InOut> */ + /* glyph :: A handle to the target glyph object. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to a 2x2 matrix to apply. */ + /* */ + /* delta :: A pointer to a 2d vector to apply. Coordinates are */ + /* expressed in 1/64th of a pixel. */ + /* */ + /* <Return> */ + /* FreeType error code (if not 0, the glyph format is not scalable). */ + /* */ + /* <Note> */ + /* The 2x2 transformation matrix is also applied to the glyph's */ + /* advance vector. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Glyph_Transform( FT_Glyph glyph, + FT_Matrix* matrix, + FT_Vector* delta ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Glyph_BBox_Mode */ + /* */ + /* <Description> */ + /* The mode how the values of @FT_Glyph_Get_CBox are returned. */ + /* */ + /* <Values> */ + /* FT_GLYPH_BBOX_UNSCALED :: */ + /* Return unscaled font units. */ + /* */ + /* FT_GLYPH_BBOX_SUBPIXELS :: */ + /* Return unfitted 26.6 coordinates. */ + /* */ + /* FT_GLYPH_BBOX_GRIDFIT :: */ + /* Return grid-fitted 26.6 coordinates. */ + /* */ + /* FT_GLYPH_BBOX_TRUNCATE :: */ + /* Return coordinates in integer pixels. */ + /* */ + /* FT_GLYPH_BBOX_PIXELS :: */ + /* Return grid-fitted pixel coordinates. */ + /* */ + typedef enum FT_Glyph_BBox_Mode_ + { + FT_GLYPH_BBOX_UNSCALED = 0, + FT_GLYPH_BBOX_SUBPIXELS = 0, + FT_GLYPH_BBOX_GRIDFIT = 1, + FT_GLYPH_BBOX_TRUNCATE = 2, + FT_GLYPH_BBOX_PIXELS = 3 + + } FT_Glyph_BBox_Mode; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_glyph_bbox_xxx */ + /* */ + /* <Description> */ + /* These constants are deprecated. Use the corresponding */ + /* @FT_Glyph_BBox_Mode values instead. */ + /* */ + /* <Values> */ + /* ft_glyph_bbox_unscaled :: See @FT_GLYPH_BBOX_UNSCALED. */ + /* ft_glyph_bbox_subpixels :: See @FT_GLYPH_BBOX_SUBPIXELS. */ + /* ft_glyph_bbox_gridfit :: See @FT_GLYPH_BBOX_GRIDFIT. */ + /* ft_glyph_bbox_truncate :: See @FT_GLYPH_BBOX_TRUNCATE. */ + /* ft_glyph_bbox_pixels :: See @FT_GLYPH_BBOX_PIXELS. */ + /* */ +#define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED +#define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS +#define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT +#define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE +#define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_Get_CBox */ + /* */ + /* <Description> */ + /* Return a glyph's `control box'. The control box encloses all the */ + /* outline's points, including Bézier control points. Though it */ + /* coincides with the exact bounding box for most glyphs, it can be */ + /* slightly larger in some situations (like when rotating an outline */ + /* which contains Bézier outside arcs). */ + /* */ + /* Computing the control box is very fast, while getting the bounding */ + /* box can take much more time as it needs to walk over all segments */ + /* and arcs in the outline. To get the latter, you can use the */ + /* `ftbbox' component which is dedicated to this single task. */ + /* */ + /* <Input> */ + /* glyph :: A handle to the source glyph object. */ + /* */ + /* mode :: The mode which indicates how to interpret the returned */ + /* bounding box values. */ + /* */ + /* <Output> */ + /* acbox :: The glyph coordinate bounding box. Coordinates are */ + /* expressed in 1/64th of pixels if it is grid-fitted. */ + /* */ + /* <Note> */ + /* Coordinates are relative to the glyph origin, using the y~upwards */ + /* convention. */ + /* */ + /* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode' */ + /* must be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font */ + /* units in 26.6 pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS */ + /* is another name for this constant. */ + /* */ + /* If the font is tricky and the glyph has been loaded with */ + /* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get */ + /* reasonable values for the CBox it is necessary to load the glyph */ + /* at a large ppem value (so that the hinting instructions can */ + /* properly shift and scale the subglyphs), then extracting the CBox */ + /* which can be eventually converted back to font units. */ + /* */ + /* Note that the maximum coordinates are exclusive, which means that */ + /* one can compute the width and height of the glyph image (be it in */ + /* integer or 26.6 pixels) as: */ + /* */ + /* { */ + /* width = bbox.xMax - bbox.xMin; */ + /* height = bbox.yMax - bbox.yMin; */ + /* } */ + /* */ + /* Note also that for 26.6 coordinates, if `bbox_mode' is set to */ + /* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted, */ + /* which corresponds to: */ + /* */ + /* { */ + /* bbox.xMin = FLOOR(bbox.xMin); */ + /* bbox.yMin = FLOOR(bbox.yMin); */ + /* bbox.xMax = CEILING(bbox.xMax); */ + /* bbox.yMax = CEILING(bbox.yMax); */ + /* } */ + /* */ + /* To get the bbox in pixel coordinates, set `bbox_mode' to */ + /* @FT_GLYPH_BBOX_TRUNCATE. */ + /* */ + /* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' */ + /* to @FT_GLYPH_BBOX_PIXELS. */ + /* */ + FT_EXPORT( void ) + FT_Glyph_Get_CBox( FT_Glyph glyph, + FT_UInt bbox_mode, + FT_BBox *acbox ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_To_Bitmap */ + /* */ + /* <Description> */ + /* Convert a given glyph object to a bitmap glyph object. */ + /* */ + /* <InOut> */ + /* the_glyph :: A pointer to a handle to the target glyph. */ + /* */ + /* <Input> */ + /* render_mode :: An enumeration that describes how the data is */ + /* rendered. */ + /* */ + /* origin :: A pointer to a vector used to translate the glyph */ + /* image before rendering. Can be~0 (if no */ + /* translation). The origin is expressed in */ + /* 26.6 pixels. */ + /* */ + /* destroy :: A boolean that indicates that the original glyph */ + /* image should be destroyed by this function. It is */ + /* never destroyed in case of error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function does nothing if the glyph format isn't scalable. */ + /* */ + /* The glyph image is translated with the `origin' vector before */ + /* rendering. */ + /* */ + /* The first parameter is a pointer to an @FT_Glyph handle, that will */ + /* be _replaced_ by this function (with newly allocated data). */ + /* Typically, you would use (omitting error handling): */ + /* */ + /* */ + /* { */ + /* FT_Glyph glyph; */ + /* FT_BitmapGlyph glyph_bitmap; */ + /* */ + /* */ + /* // load glyph */ + /* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); */ + /* */ + /* // extract glyph image */ + /* error = FT_Get_Glyph( face->glyph, &glyph ); */ + /* */ + /* // convert to a bitmap (default render mode + destroying old) */ + /* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP ) */ + /* { */ + /* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, */ + /* 0, 1 ); */ + /* if ( error ) // `glyph' unchanged */ + /* ... */ + /* } */ + /* */ + /* // access bitmap content by typecasting */ + /* glyph_bitmap = (FT_BitmapGlyph)glyph; */ + /* */ + /* // do funny stuff with it, like blitting/drawing */ + /* ... */ + /* */ + /* // discard glyph image (bitmap or not) */ + /* FT_Done_Glyph( glyph ); */ + /* } */ + /* */ + /* */ + /* Here another example, again without error handling: */ + /* */ + /* */ + /* { */ + /* FT_Glyph glyphs[MAX_GLYPHS] */ + /* */ + /* */ + /* ... */ + /* */ + /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ + /* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) || */ + /* FT_Get_Glyph ( face->glyph, &glyph[idx] ); */ + /* */ + /* ... */ + /* */ + /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ + /* { */ + /* FT_Glyph bitmap = glyphs[idx]; */ + /* */ + /* */ + /* ... */ + /* */ + /* // after this call, `bitmap' no longer points into */ + /* // the `glyphs' array (and the old value isn't destroyed) */ + /* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 ); */ + /* */ + /* ... */ + /* */ + /* FT_Done_Glyph( bitmap ); */ + /* } */ + /* */ + /* ... */ + /* */ + /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ + /* FT_Done_Glyph( glyphs[idx] ); */ + /* } */ + /* */ + FT_EXPORT( FT_Error ) + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + FT_Vector* origin, + FT_Bool destroy ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Glyph */ + /* */ + /* <Description> */ + /* Destroy a given glyph. */ + /* */ + /* <Input> */ + /* glyph :: A handle to the target glyph object. */ + /* */ + FT_EXPORT( void ) + FT_Done_Glyph( FT_Glyph glyph ); + + /* */ + + + /* other helpful functions */ + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Matrix_Multiply */ + /* */ + /* <Description> */ + /* Perform the matrix operation `b = a*b'. */ + /* */ + /* <Input> */ + /* a :: A pointer to matrix `a'. */ + /* */ + /* <InOut> */ + /* b :: A pointer to matrix `b'. */ + /* */ + /* <Note> */ + /* The result is undefined if either `a' or `b' is zero. */ + /* */ + FT_EXPORT( void ) + FT_Matrix_Multiply( const FT_Matrix* a, + FT_Matrix* b ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Matrix_Invert */ + /* */ + /* <Description> */ + /* Invert a 2x2 matrix. Return an error if it can't be inverted. */ + /* */ + /* <InOut> */ + /* matrix :: A pointer to the target matrix. Remains untouched in */ + /* case of error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Matrix_Invert( FT_Matrix* matrix ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTGLYPH_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/ftgxval.h b/uppsrc/plugin/FT_fontsys/ftgxval.h new file mode 100644 index 000000000..ea5518efa --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftgxval.h @@ -0,0 +1,358 @@ +/***************************************************************************/ +/* */ +/* ftgxval.h */ +/* */ +/* FreeType API for validating TrueTypeGX/AAT tables (specification). */ +/* */ +/* Copyright 2004, 2005, 2006 by */ +/* Masatake YAMATO, Redhat K.K, */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGXVAL_H__ +#define __FTGXVAL_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* gx_validation */ + /* */ + /* <Title> */ + /* TrueTypeGX/AAT Validation */ + /* */ + /* <Abstract> */ + /* An API to validate TrueTypeGX/AAT tables. */ + /* */ + /* <Description> */ + /* This section contains the declaration of functions to validate */ + /* some TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, */ + /* trak, prop, lcar). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* Warning: Use FT_VALIDATE_XXX to validate a table. */ + /* Following definitions are for gxvalid developers. */ + /* */ + /* */ + /*************************************************************************/ + +#define FT_VALIDATE_feat_INDEX 0 +#define FT_VALIDATE_mort_INDEX 1 +#define FT_VALIDATE_morx_INDEX 2 +#define FT_VALIDATE_bsln_INDEX 3 +#define FT_VALIDATE_just_INDEX 4 +#define FT_VALIDATE_kern_INDEX 5 +#define FT_VALIDATE_opbd_INDEX 6 +#define FT_VALIDATE_trak_INDEX 7 +#define FT_VALIDATE_prop_INDEX 8 +#define FT_VALIDATE_lcar_INDEX 9 +#define FT_VALIDATE_GX_LAST_INDEX FT_VALIDATE_lcar_INDEX + + + /************************************************************************* + * + * @macro: + * FT_VALIDATE_GX_LENGTH + * + * @description: + * The number of tables checked in this module. Use it as a parameter + * for the `table-length' argument of function @FT_TrueTypeGX_Validate. + */ +#define FT_VALIDATE_GX_LENGTH (FT_VALIDATE_GX_LAST_INDEX + 1) + + /* */ + + /* Up to 0x1000 is used by otvalid. + Ox2xxx is reserved for feature OT extension. */ +#define FT_VALIDATE_GX_START 0x4000 +#define FT_VALIDATE_GX_BITFIELD( tag ) \ + ( FT_VALIDATE_GX_START << FT_VALIDATE_##tag##_INDEX ) + + + /********************************************************************** + * + * @enum: + * FT_VALIDATE_GXXXX + * + * @description: + * A list of bit-field constants used with @FT_TrueTypeGX_Validate to + * indicate which TrueTypeGX/AAT Type tables should be validated. + * + * @values: + * FT_VALIDATE_feat :: + * Validate `feat' table. + * + * FT_VALIDATE_mort :: + * Validate `mort' table. + * + * FT_VALIDATE_morx :: + * Validate `morx' table. + * + * FT_VALIDATE_bsln :: + * Validate `bsln' table. + * + * FT_VALIDATE_just :: + * Validate `just' table. + * + * FT_VALIDATE_kern :: + * Validate `kern' table. + * + * FT_VALIDATE_opbd :: + * Validate `opbd' table. + * + * FT_VALIDATE_trak :: + * Validate `trak' table. + * + * FT_VALIDATE_prop :: + * Validate `prop' table. + * + * FT_VALIDATE_lcar :: + * Validate `lcar' table. + * + * FT_VALIDATE_GX :: + * Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern, + * opbd, trak, prop and lcar). + * + */ + +#define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat ) +#define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort ) +#define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx ) +#define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln ) +#define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just ) +#define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern ) +#define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd ) +#define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak ) +#define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop ) +#define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar ) + +#define FT_VALIDATE_GX ( FT_VALIDATE_feat | \ + FT_VALIDATE_mort | \ + FT_VALIDATE_morx | \ + FT_VALIDATE_bsln | \ + FT_VALIDATE_just | \ + FT_VALIDATE_kern | \ + FT_VALIDATE_opbd | \ + FT_VALIDATE_trak | \ + FT_VALIDATE_prop | \ + FT_VALIDATE_lcar ) + + + /* */ + + /********************************************************************** + * + * @function: + * FT_TrueTypeGX_Validate + * + * @description: + * Validate various TrueTypeGX tables to assure that all offsets and + * indices are valid. The idea is that a higher-level library which + * actually does the text layout can access those tables without + * error checking (which can be quite time consuming). + * + * @input: + * face :: + * A handle to the input face. + * + * validation_flags :: + * A bit field which specifies the tables to be validated. See + * @FT_VALIDATE_GXXXX for possible values. + * + * table_length :: + * The size of the `tables' array. Normally, @FT_VALIDATE_GX_LENGTH + * should be passed. + * + * @output: + * tables :: + * The array where all validated sfnt tables are stored. + * The array itself must be allocated by a client. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with TrueTypeGX fonts, returning an error + * otherwise. + * + * After use, the application should deallocate the buffers pointed to by + * each `tables' element, by calling @FT_TrueTypeGX_Free. A NULL value + * indicates that the table either doesn't exist in the font, the + * application hasn't asked for validation, or the validator doesn't have + * the ability to validate the sfnt table. + */ + FT_EXPORT( FT_Error ) + FT_TrueTypeGX_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_length ); + + + /* */ + + /********************************************************************** + * + * @function: + * FT_TrueTypeGX_Free + * + * @description: + * Free the buffer allocated by TrueTypeGX validator. + * + * @input: + * face :: + * A handle to the input face. + * + * table :: + * The pointer to the buffer allocated by + * @FT_TrueTypeGX_Validate. + * + * @note: + * This function must be used to free the buffer allocated by + * @FT_TrueTypeGX_Validate only. + */ + FT_EXPORT( void ) + FT_TrueTypeGX_Free( FT_Face face, + FT_Bytes table ); + + + /* */ + + /********************************************************************** + * + * @enum: + * FT_VALIDATE_CKERNXXX + * + * @description: + * A list of bit-field constants used with @FT_ClassicKern_Validate + * to indicate the classic kern dialect or dialects. If the selected + * type doesn't fit, @FT_ClassicKern_Validate regards the table as + * invalid. + * + * @values: + * FT_VALIDATE_MS :: + * Handle the `kern' table as a classic Microsoft kern table. + * + * FT_VALIDATE_APPLE :: + * Handle the `kern' table as a classic Apple kern table. + * + * FT_VALIDATE_CKERN :: + * Handle the `kern' as either classic Apple or Microsoft kern table. + */ +#define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 ) +#define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 ) + +#define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE ) + + + /* */ + + /********************************************************************** + * + * @function: + * FT_ClassicKern_Validate + * + * @description: + * Validate classic (16-bit format) kern table to assure that the offsets + * and indices are valid. The idea is that a higher-level library which + * actually does the text layout can access those tables without error + * checking (which can be quite time consuming). + * + * The `kern' table validator in @FT_TrueTypeGX_Validate deals with both + * the new 32-bit format and the classic 16-bit format, while + * FT_ClassicKern_Validate only supports the classic 16-bit format. + * + * @input: + * face :: + * A handle to the input face. + * + * validation_flags :: + * A bit field which specifies the dialect to be validated. See + * @FT_VALIDATE_CKERNXXX for possible values. + * + * @output: + * ckern_table :: + * A pointer to the kern table. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * After use, the application should deallocate the buffers pointed to by + * `ckern_table', by calling @FT_ClassicKern_Free. A NULL value + * indicates that the table doesn't exist in the font. + */ + FT_EXPORT( FT_Error ) + FT_ClassicKern_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *ckern_table ); + + + /* */ + + /********************************************************************** + * + * @function: + * FT_ClassicKern_Free + * + * @description: + * Free the buffer allocated by classic Kern validator. + * + * @input: + * face :: + * A handle to the input face. + * + * table :: + * The pointer to the buffer that is allocated by + * @FT_ClassicKern_Validate. + * + * @note: + * This function must be used to free the buffer allocated by + * @FT_ClassicKern_Validate only. + */ + FT_EXPORT( void ) + FT_ClassicKern_Free( FT_Face face, + FT_Bytes table ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTGXVAL_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftgzip.h b/uppsrc/plugin/FT_fontsys/ftgzip.h new file mode 100644 index 000000000..b62e61e03 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftgzip.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* ftgzip.h */ +/* */ +/* Gzip-compressed stream support. */ +/* */ +/* Copyright 2002, 2003, 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGZIP_H__ +#define __FTGZIP_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* gzip */ + /* */ + /* <Title> */ + /* GZIP Streams */ + /* */ + /* <Abstract> */ + /* Using gzip-compressed font files. */ + /* */ + /* <Description> */ + /* This section contains the declaration of Gzip-specific functions. */ + /* */ + /*************************************************************************/ + + + /************************************************************************ + * + * @function: + * FT_Stream_OpenGzip + * + * @description: + * Open a new stream to parse gzip-compressed font files. This is + * mainly used to support the compressed `*.pcf.gz' fonts that come + * with XFree86. + * + * @input: + * stream :: + * The target embedding stream. + * + * source :: + * The source stream. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source stream must be opened _before_ calling this function. + * + * Calling the internal function `FT_Stream_Close' on the new stream will + * *not* call `FT_Stream_Close' on the source stream. None of the stream + * objects will be released to the heap. + * + * The stream implementation is very basic and resets the decompression + * process each time seeking backwards is needed within the stream. + * + * In certain builds of the library, gzip compression recognition is + * automatically handled when calling @FT_New_Face or @FT_Open_Face. + * This means that if no font driver is capable of handling the raw + * compressed file, the library will try to open a gzipped stream from + * it and re-open the face with it. + * + * This function may return `FT_Err_Unimplemented_Feature' if your build + * of FreeType was not compiled with zlib support. + */ + FT_EXPORT( FT_Error ) + FT_Stream_OpenGzip( FT_Stream stream, + FT_Stream source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTGZIP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftimage.h b/uppsrc/plugin/FT_fontsys/ftimage.h new file mode 100644 index 000000000..242d1282a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftimage.h @@ -0,0 +1,1313 @@ +/***************************************************************************/ +/* */ +/* ftimage.h */ +/* */ +/* FreeType glyph image formats and default raster interface */ +/* (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Note: A `raster' is simply a scan-line converter, used to render */ + /* FT_Outlines into FT_Bitmaps. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTIMAGE_H__ +#define __FTIMAGE_H__ + + + /* _STANDALONE_ is from ftgrays.c */ +#ifndef _STANDALONE_ +#include "ft2build.h" +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Pos */ + /* */ + /* <Description> */ + /* The type FT_Pos is used to store vectorial coordinates. Depending */ + /* on the context, these can represent distances in integer font */ + /* units, or 16.16, or 26.6 fixed float pixel coordinates. */ + /* */ + typedef signed long FT_Pos; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Vector */ + /* */ + /* <Description> */ + /* A simple structure used to store a 2D vector; coordinates are of */ + /* the FT_Pos type. */ + /* */ + /* <Fields> */ + /* x :: The horizontal coordinate. */ + /* y :: The vertical coordinate. */ + /* */ + typedef struct FT_Vector_ + { + FT_Pos x; + FT_Pos y; + + } FT_Vector; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_BBox */ + /* */ + /* <Description> */ + /* A structure used to hold an outline's bounding box, i.e., the */ + /* coordinates of its extrema in the horizontal and vertical */ + /* directions. */ + /* */ + /* <Fields> */ + /* xMin :: The horizontal minimum (left-most). */ + /* */ + /* yMin :: The vertical minimum (bottom-most). */ + /* */ + /* xMax :: The horizontal maximum (right-most). */ + /* */ + /* yMax :: The vertical maximum (top-most). */ + /* */ + /* <Note> */ + /* The bounding box is specified with the coordinates of the lower */ + /* left and the upper right corner. In PostScript, those values are */ + /* often called (llx,lly) and (urx,ury), respectively. */ + /* */ + /* If `yMin' is negative, this value gives the glyph's descender. */ + /* Otherwise, the glyph doesn't descend below the baseline. */ + /* Similarly, if `ymax' is positive, this value gives the glyph's */ + /* ascender. */ + /* */ + /* `xMin' gives the horizontal distance from the glyph's origin to */ + /* the left edge of the glyph's bounding box. If `xMin' is negative, */ + /* the glyph extends to the left of the origin. */ + /* */ + typedef struct FT_BBox_ + { + FT_Pos xMin, yMin; + FT_Pos xMax, yMax; + + } FT_BBox; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Pixel_Mode */ + /* */ + /* <Description> */ + /* An enumeration type used to describe the format of pixels in a */ + /* given bitmap. Note that additional formats may be added in the */ + /* future. */ + /* */ + /* <Values> */ + /* FT_PIXEL_MODE_NONE :: */ + /* Value~0 is reserved. */ + /* */ + /* FT_PIXEL_MODE_MONO :: */ + /* A monochrome bitmap, using 1~bit per pixel. Note that pixels */ + /* are stored in most-significant order (MSB), which means that */ + /* the left-most pixel in a byte has value 128. */ + /* */ + /* FT_PIXEL_MODE_GRAY :: */ + /* An 8-bit bitmap, generally used to represent anti-aliased glyph */ + /* images. Each pixel is stored in one byte. Note that the number */ + /* of `gray' levels is stored in the `num_grays' field of the */ + /* @FT_Bitmap structure (it generally is 256). */ + /* */ + /* FT_PIXEL_MODE_GRAY2 :: */ + /* A 2-bit per pixel bitmap, used to represent embedded */ + /* anti-aliased bitmaps in font files according to the OpenType */ + /* specification. We haven't found a single font using this */ + /* format, however. */ + /* */ + /* FT_PIXEL_MODE_GRAY4 :: */ + /* A 4-bit per pixel bitmap, representing embedded anti-aliased */ + /* bitmaps in font files according to the OpenType specification. */ + /* We haven't found a single font using this format, however. */ + /* */ + /* FT_PIXEL_MODE_LCD :: */ + /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ + /* used for display on LCD displays; the bitmap is three times */ + /* wider than the original glyph image. See also */ + /* @FT_RENDER_MODE_LCD. */ + /* */ + /* FT_PIXEL_MODE_LCD_V :: */ + /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ + /* used for display on rotated LCD displays; the bitmap is three */ + /* times taller than the original glyph image. See also */ + /* @FT_RENDER_MODE_LCD_V. */ + /* */ + typedef enum FT_Pixel_Mode_ + { + FT_PIXEL_MODE_NONE = 0, + FT_PIXEL_MODE_MONO, + FT_PIXEL_MODE_GRAY, + FT_PIXEL_MODE_GRAY2, + FT_PIXEL_MODE_GRAY4, + FT_PIXEL_MODE_LCD, + FT_PIXEL_MODE_LCD_V, + + FT_PIXEL_MODE_MAX /* do not remove */ + + } FT_Pixel_Mode; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_pixel_mode_xxx */ + /* */ + /* <Description> */ + /* A list of deprecated constants. Use the corresponding */ + /* @FT_Pixel_Mode values instead. */ + /* */ + /* <Values> */ + /* ft_pixel_mode_none :: See @FT_PIXEL_MODE_NONE. */ + /* ft_pixel_mode_mono :: See @FT_PIXEL_MODE_MONO. */ + /* ft_pixel_mode_grays :: See @FT_PIXEL_MODE_GRAY. */ + /* ft_pixel_mode_pal2 :: See @FT_PIXEL_MODE_GRAY2. */ + /* ft_pixel_mode_pal4 :: See @FT_PIXEL_MODE_GRAY4. */ + /* */ +#define ft_pixel_mode_none FT_PIXEL_MODE_NONE +#define ft_pixel_mode_mono FT_PIXEL_MODE_MONO +#define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY +#define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 +#define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 + + /* */ + +#if 0 + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Palette_Mode */ + /* */ + /* <Description> */ + /* THIS TYPE IS DEPRECATED. DO NOT USE IT! */ + /* */ + /* An enumeration type to describe the format of a bitmap palette, */ + /* used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8. */ + /* */ + /* <Values> */ + /* ft_palette_mode_rgb :: The palette is an array of 3-byte RGB */ + /* records. */ + /* */ + /* ft_palette_mode_rgba :: The palette is an array of 4-byte RGBA */ + /* records. */ + /* */ + /* <Note> */ + /* As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */ + /* FreeType, these types are not handled by the library itself. */ + /* */ + typedef enum FT_Palette_Mode_ + { + ft_palette_mode_rgb = 0, + ft_palette_mode_rgba, + + ft_palette_mode_max /* do not remove */ + + } FT_Palette_Mode; + + /* */ + +#endif + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Bitmap */ + /* */ + /* <Description> */ + /* A structure used to describe a bitmap or pixmap to the raster. */ + /* Note that we now manage pixmaps of various depths through the */ + /* `pixel_mode' field. */ + /* */ + /* <Fields> */ + /* rows :: The number of bitmap rows. */ + /* */ + /* width :: The number of pixels in bitmap row. */ + /* */ + /* pitch :: The pitch's absolute value is the number of bytes */ + /* taken by one bitmap row, including padding. */ + /* However, the pitch is positive when the bitmap has */ + /* a `down' flow, and negative when it has an `up' */ + /* flow. In all cases, the pitch is an offset to add */ + /* to a bitmap pointer in order to go down one row. */ + /* */ + /* Note that `padding' means the alignment of a */ + /* bitmap to a byte border, and FreeType functions */ + /* normally align to the smallest possible integer */ + /* value. */ + /* */ + /* For the B/W rasterizer, `pitch' is always an even */ + /* number. */ + /* */ + /* To change the pitch of a bitmap (say, to make it a */ + /* multiple of 4), use @FT_Bitmap_Convert. */ + /* Alternatively, you might use callback functions to */ + /* directly render to the application's surface; see */ + /* the file `example2.cpp' in the tutorial for a */ + /* demonstration. */ + /* */ + /* buffer :: A typeless pointer to the bitmap buffer. This */ + /* value should be aligned on 32-bit boundaries in */ + /* most cases. */ + /* */ + /* num_grays :: This field is only used with */ + /* @FT_PIXEL_MODE_GRAY; it gives the number of gray */ + /* levels used in the bitmap. */ + /* */ + /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */ + /* See @FT_Pixel_Mode for possible values. */ + /* */ + /* palette_mode :: This field is intended for paletted pixel modes; */ + /* it indicates how the palette is stored. Not */ + /* used currently. */ + /* */ + /* palette :: A typeless pointer to the bitmap palette; this */ + /* field is intended for paletted pixel modes. Not */ + /* used currently. */ + /* */ + /* <Note> */ + /* For now, the only pixel modes supported by FreeType are mono and */ + /* grays. However, drivers might be added in the future to support */ + /* more `colorful' options. */ + /* */ + typedef struct FT_Bitmap_ + { + int rows; + int width; + int pitch; + unsigned char* buffer; + short num_grays; + char pixel_mode; + char palette_mode; + void* palette; + + } FT_Bitmap; + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* outline_processing */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Outline */ + /* */ + /* <Description> */ + /* This structure is used to describe an outline to the scan-line */ + /* converter. */ + /* */ + /* <Fields> */ + /* n_contours :: The number of contours in the outline. */ + /* */ + /* n_points :: The number of points in the outline. */ + /* */ + /* points :: A pointer to an array of `n_points' @FT_Vector */ + /* elements, giving the outline's point coordinates. */ + /* */ + /* tags :: A pointer to an array of `n_points' chars, giving */ + /* each outline point's type. */ + /* */ + /* If bit~0 is unset, the point is `off' the curve, */ + /* i.e., a Bézier control point, while it is `on' if */ + /* set. */ + /* */ + /* Bit~1 is meaningful for `off' points only. If set, */ + /* it indicates a third-order Bézier arc control point; */ + /* and a second-order control point if unset. */ + /* */ + /* If bit~2 is set, bits 5-7 contain the drop-out mode */ + /* (as defined in the OpenType specification; the value */ + /* is the same as the argument to the SCANMODE */ + /* instruction). */ + /* */ + /* Bits 3 and~4 are reserved for internal purposes. */ + /* */ + /* contours :: An array of `n_contours' shorts, giving the end */ + /* point of each contour within the outline. For */ + /* example, the first contour is defined by the points */ + /* `0' to `contours[0]', the second one is defined by */ + /* the points `contours[0]+1' to `contours[1]', etc. */ + /* */ + /* flags :: A set of bit flags used to characterize the outline */ + /* and give hints to the scan-converter and hinter on */ + /* how to convert/grid-fit it. See @FT_OUTLINE_FLAGS. */ + /* */ + /* <Note> */ + /* The B/W rasterizer only checks bit~2 in the `tags' array for the */ + /* first point of each contour. The drop-out mode as given with */ + /* @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and */ + /* @FT_OUTLINE_INCLUDE_STUBS in `flags' is then overridden. */ + /* */ + typedef struct FT_Outline_ + { + short n_contours; /* number of contours in glyph */ + short n_points; /* number of points in the glyph */ + + FT_Vector* points; /* the outline's points */ + char* tags; /* the points flags */ + short* contours; /* the contour end points */ + + int flags; /* outline masks */ + + } FT_Outline; + + /* Following limits must be consistent with */ + /* FT_Outline.{n_contours,n_points} */ +#define FT_OUTLINE_CONTOURS_MAX SHRT_MAX +#define FT_OUTLINE_POINTS_MAX SHRT_MAX + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_OUTLINE_FLAGS */ + /* */ + /* <Description> */ + /* A list of bit-field constants use for the flags in an outline's */ + /* `flags' field. */ + /* */ + /* <Values> */ + /* FT_OUTLINE_NONE :: */ + /* Value~0 is reserved. */ + /* */ + /* FT_OUTLINE_OWNER :: */ + /* If set, this flag indicates that the outline's field arrays */ + /* (i.e., `points', `flags', and `contours') are `owned' by the */ + /* outline object, and should thus be freed when it is destroyed. */ + /* */ + /* FT_OUTLINE_EVEN_ODD_FILL :: */ + /* By default, outlines are filled using the non-zero winding rule. */ + /* If set to 1, the outline will be filled using the even-odd fill */ + /* rule (only works with the smooth rasterizer). */ + /* */ + /* FT_OUTLINE_REVERSE_FILL :: */ + /* By default, outside contours of an outline are oriented in */ + /* clock-wise direction, as defined in the TrueType specification. */ + /* This flag is set if the outline uses the opposite direction */ + /* (typically for Type~1 fonts). This flag is ignored by the scan */ + /* converter. */ + /* */ + /* FT_OUTLINE_IGNORE_DROPOUTS :: */ + /* By default, the scan converter will try to detect drop-outs in */ + /* an outline and correct the glyph bitmap to ensure consistent */ + /* shape continuity. If set, this flag hints the scan-line */ + /* converter to ignore such cases. See below for more information. */ + /* */ + /* FT_OUTLINE_SMART_DROPOUTS :: */ + /* Select smart dropout control. If unset, use simple dropout */ + /* control. Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See */ + /* below for more information. */ + /* */ + /* FT_OUTLINE_INCLUDE_STUBS :: */ + /* If set, turn pixels on for `stubs', otherwise exclude them. */ + /* Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for */ + /* more information. */ + /* */ + /* FT_OUTLINE_HIGH_PRECISION :: */ + /* This flag indicates that the scan-line converter should try to */ + /* convert this outline to bitmaps with the highest possible */ + /* quality. It is typically set for small character sizes. Note */ + /* that this is only a hint that might be completely ignored by a */ + /* given scan-converter. */ + /* */ + /* FT_OUTLINE_SINGLE_PASS :: */ + /* This flag is set to force a given scan-converter to only use a */ + /* single pass over the outline to render a bitmap glyph image. */ + /* Normally, it is set for very large character sizes. It is only */ + /* a hint that might be completely ignored by a given */ + /* scan-converter. */ + /* */ + /* <Note> */ + /* The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, */ + /* and @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth */ + /* rasterizer. */ + /* */ + /* There exists a second mechanism to pass the drop-out mode to the */ + /* B/W rasterizer; see the `tags' field in @FT_Outline. */ + /* */ + /* Please refer to the description of the `SCANTYPE' instruction in */ + /* the OpenType specification (in file `ttinst1.doc') how simple */ + /* drop-outs, smart drop-outs, and stubs are defined. */ + /* */ +#define FT_OUTLINE_NONE 0x0 +#define FT_OUTLINE_OWNER 0x1 +#define FT_OUTLINE_EVEN_ODD_FILL 0x2 +#define FT_OUTLINE_REVERSE_FILL 0x4 +#define FT_OUTLINE_IGNORE_DROPOUTS 0x8 +#define FT_OUTLINE_SMART_DROPOUTS 0x10 +#define FT_OUTLINE_INCLUDE_STUBS 0x20 + +#define FT_OUTLINE_HIGH_PRECISION 0x100 +#define FT_OUTLINE_SINGLE_PASS 0x200 + + + /************************************************************************* + * + * @enum: + * ft_outline_flags + * + * @description: + * These constants are deprecated. Please use the corresponding + * @FT_OUTLINE_FLAGS values. + * + * @values: + * ft_outline_none :: See @FT_OUTLINE_NONE. + * ft_outline_owner :: See @FT_OUTLINE_OWNER. + * ft_outline_even_odd_fill :: See @FT_OUTLINE_EVEN_ODD_FILL. + * ft_outline_reverse_fill :: See @FT_OUTLINE_REVERSE_FILL. + * ft_outline_ignore_dropouts :: See @FT_OUTLINE_IGNORE_DROPOUTS. + * ft_outline_high_precision :: See @FT_OUTLINE_HIGH_PRECISION. + * ft_outline_single_pass :: See @FT_OUTLINE_SINGLE_PASS. + */ +#define ft_outline_none FT_OUTLINE_NONE +#define ft_outline_owner FT_OUTLINE_OWNER +#define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL +#define ft_outline_reverse_fill FT_OUTLINE_REVERSE_FILL +#define ft_outline_ignore_dropouts FT_OUTLINE_IGNORE_DROPOUTS +#define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION +#define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS + + /* */ + +#define FT_CURVE_TAG( flag ) ( flag & 3 ) + +#define FT_CURVE_TAG_ON 1 +#define FT_CURVE_TAG_CONIC 0 +#define FT_CURVE_TAG_CUBIC 2 + +#define FT_CURVE_TAG_HAS_SCANMODE 4 + +#define FT_CURVE_TAG_TOUCH_X 8 /* reserved for the TrueType hinter */ +#define FT_CURVE_TAG_TOUCH_Y 16 /* reserved for the TrueType hinter */ + +#define FT_CURVE_TAG_TOUCH_BOTH ( FT_CURVE_TAG_TOUCH_X | \ + FT_CURVE_TAG_TOUCH_Y ) + +#define FT_Curve_Tag_On FT_CURVE_TAG_ON +#define FT_Curve_Tag_Conic FT_CURVE_TAG_CONIC +#define FT_Curve_Tag_Cubic FT_CURVE_TAG_CUBIC +#define FT_Curve_Tag_Touch_X FT_CURVE_TAG_TOUCH_X +#define FT_Curve_Tag_Touch_Y FT_CURVE_TAG_TOUCH_Y + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_MoveToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `move */ + /* to' function during outline walking/decomposition. */ + /* */ + /* A `move to' is emitted to start a new contour in an outline. */ + /* */ + /* <Input> */ + /* to :: A pointer to the target point of the `move to'. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of the */ + /* decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_MoveToFunc)( const FT_Vector* to, + void* user ); + +#define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_LineToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `line */ + /* to' function during outline walking/decomposition. */ + /* */ + /* A `line to' is emitted to indicate a segment in the outline. */ + /* */ + /* <Input> */ + /* to :: A pointer to the target point of the `line to'. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of the */ + /* decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_LineToFunc)( const FT_Vector* to, + void* user ); + +#define FT_Outline_LineTo_Func FT_Outline_LineToFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_ConicToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `conic */ + /* to' function during outline walking or decomposition. */ + /* */ + /* A `conic to' is emitted to indicate a second-order Bézier arc in */ + /* the outline. */ + /* */ + /* <Input> */ + /* control :: An intermediate control point between the last position */ + /* and the new target in `to'. */ + /* */ + /* to :: A pointer to the target end point of the conic arc. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of */ + /* the decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_ConicToFunc)( const FT_Vector* control, + const FT_Vector* to, + void* user ); + +#define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_CubicToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `cubic */ + /* to' function during outline walking or decomposition. */ + /* */ + /* A `cubic to' is emitted to indicate a third-order Bézier arc. */ + /* */ + /* <Input> */ + /* control1 :: A pointer to the first Bézier control point. */ + /* */ + /* control2 :: A pointer to the second Bézier control point. */ + /* */ + /* to :: A pointer to the target end point. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of */ + /* the decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_CubicToFunc)( const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to, + void* user ); + +#define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Outline_Funcs */ + /* */ + /* <Description> */ + /* A structure to hold various function pointers used during outline */ + /* decomposition in order to emit segments, conic, and cubic Béziers. */ + /* */ + /* <Fields> */ + /* move_to :: The `move to' emitter. */ + /* */ + /* line_to :: The segment emitter. */ + /* */ + /* conic_to :: The second-order Bézier arc emitter. */ + /* */ + /* cubic_to :: The third-order Bézier arc emitter. */ + /* */ + /* shift :: The shift that is applied to coordinates before they */ + /* are sent to the emitter. */ + /* */ + /* delta :: The delta that is applied to coordinates before they */ + /* are sent to the emitter, but after the shift. */ + /* */ + /* <Note> */ + /* The point coordinates sent to the emitters are the transformed */ + /* version of the original coordinates (this is important for high */ + /* accuracy during scan-conversion). The transformation is simple: */ + /* */ + /* { */ + /* x' = (x << shift) - delta */ + /* y' = (x << shift) - delta */ + /* } */ + /* */ + /* Set the values of `shift' and `delta' to~0 to get the original */ + /* point coordinates. */ + /* */ + typedef struct FT_Outline_Funcs_ + { + FT_Outline_MoveToFunc move_to; + FT_Outline_LineToFunc line_to; + FT_Outline_ConicToFunc conic_to; + FT_Outline_CubicToFunc cubic_to; + + int shift; + FT_Pos delta; + + } FT_Outline_Funcs; + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_IMAGE_TAG */ + /* */ + /* <Description> */ + /* This macro converts four-letter tags to an unsigned long type. */ + /* */ + /* <Note> */ + /* Since many 16-bit compilers don't like 32-bit enumerations, you */ + /* should redefine this macro in case of problems to something like */ + /* this: */ + /* */ + /* { */ + /* #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */ + /* } */ + /* */ + /* to get a simple enumeration without assigning special numbers. */ + /* */ +#ifndef FT_IMAGE_TAG +#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \ + value = ( ( (unsigned long)_x1 << 24 ) | \ + ( (unsigned long)_x2 << 16 ) | \ + ( (unsigned long)_x3 << 8 ) | \ + (unsigned long)_x4 ) +#endif /* FT_IMAGE_TAG */ + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Glyph_Format */ + /* */ + /* <Description> */ + /* An enumeration type used to describe the format of a given glyph */ + /* image. Note that this version of FreeType only supports two image */ + /* formats, even though future font drivers will be able to register */ + /* their own format. */ + /* */ + /* <Values> */ + /* FT_GLYPH_FORMAT_NONE :: */ + /* The value~0 is reserved. */ + /* */ + /* FT_GLYPH_FORMAT_COMPOSITE :: */ + /* The glyph image is a composite of several other images. This */ + /* format is _only_ used with @FT_LOAD_NO_RECURSE, and is used to */ + /* report compound glyphs (like accented characters). */ + /* */ + /* FT_GLYPH_FORMAT_BITMAP :: */ + /* The glyph image is a bitmap, and can be described as an */ + /* @FT_Bitmap. You generally need to access the `bitmap' field of */ + /* the @FT_GlyphSlotRec structure to read it. */ + /* */ + /* FT_GLYPH_FORMAT_OUTLINE :: */ + /* The glyph image is a vectorial outline made of line segments */ + /* and Bézier arcs; it can be described as an @FT_Outline; you */ + /* generally want to access the `outline' field of the */ + /* @FT_GlyphSlotRec structure to read it. */ + /* */ + /* FT_GLYPH_FORMAT_PLOTTER :: */ + /* The glyph image is a vectorial path with no inside and outside */ + /* contours. Some Type~1 fonts, like those in the Hershey family, */ + /* contain glyphs in this format. These are described as */ + /* @FT_Outline, but FreeType isn't currently capable of rendering */ + /* them correctly. */ + /* */ + typedef enum FT_Glyph_Format_ + { + FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ), + + FT_IMAGE_TAG( FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ), + FT_IMAGE_TAG( FT_GLYPH_FORMAT_BITMAP, 'b', 'i', 't', 's' ), + FT_IMAGE_TAG( FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ), + FT_IMAGE_TAG( FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' ) + + } FT_Glyph_Format; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_glyph_format_xxx */ + /* */ + /* <Description> */ + /* A list of deprecated constants. Use the corresponding */ + /* @FT_Glyph_Format values instead. */ + /* */ + /* <Values> */ + /* ft_glyph_format_none :: See @FT_GLYPH_FORMAT_NONE. */ + /* ft_glyph_format_composite :: See @FT_GLYPH_FORMAT_COMPOSITE. */ + /* ft_glyph_format_bitmap :: See @FT_GLYPH_FORMAT_BITMAP. */ + /* ft_glyph_format_outline :: See @FT_GLYPH_FORMAT_OUTLINE. */ + /* ft_glyph_format_plotter :: See @FT_GLYPH_FORMAT_PLOTTER. */ + /* */ +#define ft_glyph_format_none FT_GLYPH_FORMAT_NONE +#define ft_glyph_format_composite FT_GLYPH_FORMAT_COMPOSITE +#define ft_glyph_format_bitmap FT_GLYPH_FORMAT_BITMAP +#define ft_glyph_format_outline FT_GLYPH_FORMAT_OUTLINE +#define ft_glyph_format_plotter FT_GLYPH_FORMAT_PLOTTER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** R A S T E R D E F I N I T I O N S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* A raster is a scan converter, in charge of rendering an outline into */ + /* a a bitmap. This section contains the public API for rasters. */ + /* */ + /* Note that in FreeType 2, all rasters are now encapsulated within */ + /* specific modules called `renderers'. See `freetype/ftrender.h' for */ + /* more details on renderers. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* raster */ + /* */ + /* <Title> */ + /* Scanline Converter */ + /* */ + /* <Abstract> */ + /* How vectorial outlines are converted into bitmaps and pixmaps. */ + /* */ + /* <Description> */ + /* This section contains technical definitions. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Raster */ + /* */ + /* <Description> */ + /* A handle (pointer) to a raster object. Each object can be used */ + /* independently to convert an outline into a bitmap or pixmap. */ + /* */ + typedef struct FT_RasterRec_* FT_Raster; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Span */ + /* */ + /* <Description> */ + /* A structure used to model a single span of gray (or black) pixels */ + /* when rendering a monochrome or anti-aliased bitmap. */ + /* */ + /* <Fields> */ + /* x :: The span's horizontal start position. */ + /* */ + /* len :: The span's length in pixels. */ + /* */ + /* coverage :: The span color/coverage, ranging from 0 (background) */ + /* to 255 (foreground). Only used for anti-aliased */ + /* rendering. */ + /* */ + /* <Note> */ + /* This structure is used by the span drawing callback type named */ + /* @FT_SpanFunc which takes the y~coordinate of the span as a */ + /* a parameter. */ + /* */ + /* The coverage value is always between 0 and 255. If you want less */ + /* gray values, the callback function has to reduce them. */ + /* */ + typedef struct FT_Span_ + { + short x; + unsigned short len; + unsigned char coverage; + + } FT_Span; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_SpanFunc */ + /* */ + /* <Description> */ + /* A function used as a call-back by the anti-aliased renderer in */ + /* order to let client applications draw themselves the gray pixel */ + /* spans on each scan line. */ + /* */ + /* <Input> */ + /* y :: The scanline's y~coordinate. */ + /* */ + /* count :: The number of spans to draw on this scanline. */ + /* */ + /* spans :: A table of `count' spans to draw on the scanline. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Note> */ + /* This callback allows client applications to directly render the */ + /* gray spans of the anti-aliased bitmap to any kind of surfaces. */ + /* */ + /* This can be used to write anti-aliased outlines directly to a */ + /* given background bitmap, and even perform translucency. */ + /* */ + /* Note that the `count' field cannot be greater than a fixed value */ + /* defined by the `FT_MAX_GRAY_SPANS' configuration macro in */ + /* `ftoption.h'. By default, this value is set to~32, which means */ + /* that if there are more than 32~spans on a given scanline, the */ + /* callback is called several times with the same `y' parameter in */ + /* order to draw all callbacks. */ + /* */ + /* Otherwise, the callback is only called once per scan-line, and */ + /* only for those scanlines that do have `gray' pixels on them. */ + /* */ + typedef void + (*FT_SpanFunc)( int y, + int count, + const FT_Span* spans, + void* user ); + +#define FT_Raster_Span_Func FT_SpanFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_BitTest_Func */ + /* */ + /* <Description> */ + /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ + /* */ + /* A function used as a call-back by the monochrome scan-converter */ + /* to test whether a given target pixel is already set to the drawing */ + /* `color'. These tests are crucial to implement drop-out control */ + /* per-se the TrueType spec. */ + /* */ + /* <Input> */ + /* y :: The pixel's y~coordinate. */ + /* */ + /* x :: The pixel's x~coordinate. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Return> */ + /* 1~if the pixel is `set', 0~otherwise. */ + /* */ + typedef int + (*FT_Raster_BitTest_Func)( int y, + int x, + void* user ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_BitSet_Func */ + /* */ + /* <Description> */ + /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ + /* */ + /* A function used as a call-back by the monochrome scan-converter */ + /* to set an individual target pixel. This is crucial to implement */ + /* drop-out control according to the TrueType specification. */ + /* */ + /* <Input> */ + /* y :: The pixel's y~coordinate. */ + /* */ + /* x :: The pixel's x~coordinate. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Return> */ + /* 1~if the pixel is `set', 0~otherwise. */ + /* */ + typedef void + (*FT_Raster_BitSet_Func)( int y, + int x, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_RASTER_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit flag constants as used in the `flags' field of a */ + /* @FT_Raster_Params structure. */ + /* */ + /* <Values> */ + /* FT_RASTER_FLAG_DEFAULT :: This value is 0. */ + /* */ + /* FT_RASTER_FLAG_AA :: This flag is set to indicate that an */ + /* anti-aliased glyph image should be */ + /* generated. Otherwise, it will be */ + /* monochrome (1-bit). */ + /* */ + /* FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */ + /* rendering. In this mode, client */ + /* applications must provide their own span */ + /* callback. This lets them directly */ + /* draw or compose over an existing bitmap. */ + /* If this bit is not set, the target */ + /* pixmap's buffer _must_ be zeroed before */ + /* rendering. */ + /* */ + /* Note that for now, direct rendering is */ + /* only possible with anti-aliased glyphs. */ + /* */ + /* FT_RASTER_FLAG_CLIP :: This flag is only used in direct */ + /* rendering mode. If set, the output will */ + /* be clipped to a box specified in the */ + /* `clip_box' field of the */ + /* @FT_Raster_Params structure. */ + /* */ + /* Note that by default, the glyph bitmap */ + /* is clipped to the target pixmap, except */ + /* in direct rendering mode where all spans */ + /* are generated if no clipping box is set. */ + /* */ +#define FT_RASTER_FLAG_DEFAULT 0x0 +#define FT_RASTER_FLAG_AA 0x1 +#define FT_RASTER_FLAG_DIRECT 0x2 +#define FT_RASTER_FLAG_CLIP 0x4 + + /* deprecated */ +#define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT +#define ft_raster_flag_aa FT_RASTER_FLAG_AA +#define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT +#define ft_raster_flag_clip FT_RASTER_FLAG_CLIP + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Raster_Params */ + /* */ + /* <Description> */ + /* A structure to hold the arguments used by a raster's render */ + /* function. */ + /* */ + /* <Fields> */ + /* target :: The target bitmap. */ + /* */ + /* source :: A pointer to the source glyph image (e.g., an */ + /* @FT_Outline). */ + /* */ + /* flags :: The rendering flags. */ + /* */ + /* gray_spans :: The gray span drawing callback. */ + /* */ + /* black_spans :: The black span drawing callback. UNIMPLEMENTED! */ + /* */ + /* bit_test :: The bit test callback. UNIMPLEMENTED! */ + /* */ + /* bit_set :: The bit set callback. UNIMPLEMENTED! */ + /* */ + /* user :: User-supplied data that is passed to each drawing */ + /* callback. */ + /* */ + /* clip_box :: An optional clipping box. It is only used in */ + /* direct rendering mode. Note that coordinates here */ + /* should be expressed in _integer_ pixels (and not in */ + /* 26.6 fixed-point units). */ + /* */ + /* <Note> */ + /* An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA */ + /* bit flag is set in the `flags' field, otherwise a monochrome */ + /* bitmap is generated. */ + /* */ + /* If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */ + /* raster will call the `gray_spans' callback to draw gray pixel */ + /* spans, in the case of an aa glyph bitmap, it will call */ + /* `black_spans', and `bit_test' and `bit_set' in the case of a */ + /* monochrome bitmap. This allows direct composition over a */ + /* pre-existing bitmap through user-provided callbacks to perform the */ + /* span drawing/composition. */ + /* */ + /* Note that the `bit_test' and `bit_set' callbacks are required when */ + /* rendering a monochrome bitmap, as they are crucial to implement */ + /* correct drop-out control as defined in the TrueType specification. */ + /* */ + typedef struct FT_Raster_Params_ + { + const FT_Bitmap* target; + const void* source; + int flags; + FT_SpanFunc gray_spans; + FT_SpanFunc black_spans; /* doesn't work! */ + FT_Raster_BitTest_Func bit_test; /* doesn't work! */ + FT_Raster_BitSet_Func bit_set; /* doesn't work! */ + void* user; + FT_BBox clip_box; + + } FT_Raster_Params; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_NewFunc */ + /* */ + /* <Description> */ + /* A function used to create a new raster object. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory allocator. */ + /* */ + /* <Output> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `memory' parameter is a typeless pointer in order to avoid */ + /* un-wanted dependencies on the rest of the FreeType code. In */ + /* practice, it is an @FT_Memory object, i.e., a handle to the */ + /* standard FreeType memory allocator. However, this field can be */ + /* completely ignored by a given raster implementation. */ + /* */ + typedef int + (*FT_Raster_NewFunc)( void* memory, + FT_Raster* raster ); + +#define FT_Raster_New_Func FT_Raster_NewFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_DoneFunc */ + /* */ + /* <Description> */ + /* A function used to destroy a given raster object. */ + /* */ + /* <Input> */ + /* raster :: A handle to the raster object. */ + /* */ + typedef void + (*FT_Raster_DoneFunc)( FT_Raster raster ); + +#define FT_Raster_Done_Func FT_Raster_DoneFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_ResetFunc */ + /* */ + /* <Description> */ + /* FreeType provides an area of memory called the `render pool', */ + /* available to all registered rasters. This pool can be freely used */ + /* during a given scan-conversion but is shared by all rasters. Its */ + /* content is thus transient. */ + /* */ + /* This function is called each time the render pool changes, or just */ + /* after a new raster object is created. */ + /* */ + /* <Input> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* pool_base :: The address in memory of the render pool. */ + /* */ + /* pool_size :: The size in bytes of the render pool. */ + /* */ + /* <Note> */ + /* Rasters can ignore the render pool and rely on dynamic memory */ + /* allocation if they want to (a handle to the memory allocator is */ + /* passed to the raster constructor). However, this is not */ + /* recommended for efficiency purposes. */ + /* */ + typedef void + (*FT_Raster_ResetFunc)( FT_Raster raster, + unsigned char* pool_base, + unsigned long pool_size ); + +#define FT_Raster_Reset_Func FT_Raster_ResetFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_SetModeFunc */ + /* */ + /* <Description> */ + /* This function is a generic facility to change modes or attributes */ + /* in a given raster. This can be used for debugging purposes, or */ + /* simply to allow implementation-specific `features' in a given */ + /* raster module. */ + /* */ + /* <Input> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* mode :: A 4-byte tag used to name the mode or property. */ + /* */ + /* args :: A pointer to the new mode/property to use. */ + /* */ + typedef int + (*FT_Raster_SetModeFunc)( FT_Raster raster, + unsigned long mode, + void* args ); + +#define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_RenderFunc */ + /* */ + /* <Description> */ + /* Invoke a given raster to scan-convert a given glyph image into a */ + /* target bitmap. */ + /* */ + /* <Input> */ + /* raster :: A handle to the raster object. */ + /* */ + /* params :: A pointer to an @FT_Raster_Params structure used to */ + /* store the rendering parameters. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + /* <Note> */ + /* The exact format of the source image depends on the raster's glyph */ + /* format defined in its @FT_Raster_Funcs structure. It can be an */ + /* @FT_Outline or anything else in order to support a large array of */ + /* glyph formats. */ + /* */ + /* Note also that the render function can fail and return a */ + /* `FT_Err_Unimplemented_Feature' error code if the raster used does */ + /* not support direct composition. */ + /* */ + /* XXX: For now, the standard raster doesn't support direct */ + /* composition but this should change for the final release (see */ + /* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */ + /* for examples of distinct implementations which support direct */ + /* composition). */ + /* */ + typedef int + (*FT_Raster_RenderFunc)( FT_Raster raster, + const FT_Raster_Params* params ); + +#define FT_Raster_Render_Func FT_Raster_RenderFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Raster_Funcs */ + /* */ + /* <Description> */ + /* A structure used to describe a given raster class to the library. */ + /* */ + /* <Fields> */ + /* glyph_format :: The supported glyph format for this raster. */ + /* */ + /* raster_new :: The raster constructor. */ + /* */ + /* raster_reset :: Used to reset the render pool within the raster. */ + /* */ + /* raster_render :: A function to render a glyph into a given bitmap. */ + /* */ + /* raster_done :: The raster destructor. */ + /* */ + typedef struct FT_Raster_Funcs_ + { + FT_Glyph_Format glyph_format; + FT_Raster_NewFunc raster_new; + FT_Raster_ResetFunc raster_reset; + FT_Raster_SetModeFunc raster_set_mode; + FT_Raster_RenderFunc raster_render; + FT_Raster_DoneFunc raster_done; + + } FT_Raster_Funcs; + + + /* */ + + +FT_END_HEADER + +#endif /* __FTIMAGE_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/ftincrem.h b/uppsrc/plugin/FT_fontsys/ftincrem.h new file mode 100644 index 000000000..7c2666348 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftincrem.h @@ -0,0 +1,353 @@ +/***************************************************************************/ +/* */ +/* ftincrem.h */ +/* */ +/* FreeType incremental loading (specification). */ +/* */ +/* Copyright 2002, 2003, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTINCREM_H__ +#define __FTINCREM_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************** + * + * @section: + * incremental + * + * @title: + * Incremental Loading + * + * @abstract: + * Custom Glyph Loading. + * + * @description: + * This section contains various functions used to perform so-called + * `incremental' glyph loading. This is a mode where all glyphs loaded + * from a given @FT_Face are provided by the client application, + * + * Apart from that, all other tables are loaded normally from the font + * file. This mode is useful when FreeType is used within another + * engine, e.g., a PostScript Imaging Processor. + * + * To enable this mode, you must use @FT_Open_Face, passing an + * @FT_Parameter with the @FT_PARAM_TAG_INCREMENTAL tag and an + * @FT_Incremental_Interface value. See the comments for + * @FT_Incremental_InterfaceRec for an example. + * + */ + + + /*************************************************************************** + * + * @type: + * FT_Incremental + * + * @description: + * An opaque type describing a user-provided object used to implement + * `incremental' glyph loading within FreeType. This is used to support + * embedded fonts in certain environments (e.g., PostScript interpreters), + * where the glyph data isn't in the font file, or must be overridden by + * different values. + * + * @note: + * It is up to client applications to create and implement @FT_Incremental + * objects, as long as they provide implementations for the methods + * @FT_Incremental_GetGlyphDataFunc, @FT_Incremental_FreeGlyphDataFunc + * and @FT_Incremental_GetGlyphMetricsFunc. + * + * See the description of @FT_Incremental_InterfaceRec to understand how + * to use incremental objects with FreeType. + * + */ + typedef struct FT_IncrementalRec_* FT_Incremental; + + + /*************************************************************************** + * + * @struct: + * FT_Incremental_MetricsRec + * + * @description: + * A small structure used to contain the basic glyph metrics returned + * by the @FT_Incremental_GetGlyphMetricsFunc method. + * + * @fields: + * bearing_x :: + * Left bearing, in font units. + * + * bearing_y :: + * Top bearing, in font units. + * + * advance :: + * Horizontal component of glyph advance, in font units. + * + * advance_v :: + * Vertical component of glyph advance, in font units. + * + * @note: + * These correspond to horizontal or vertical metrics depending on the + * value of the `vertical' argument to the function + * @FT_Incremental_GetGlyphMetricsFunc. + * + */ + typedef struct FT_Incremental_MetricsRec_ + { + FT_Long bearing_x; + FT_Long bearing_y; + FT_Long advance; + FT_Long advance_v; /* since 2.3.12 */ + + } FT_Incremental_MetricsRec; + + + /*************************************************************************** + * + * @struct: + * FT_Incremental_Metrics + * + * @description: + * A handle to an @FT_Incremental_MetricsRec structure. + * + */ + typedef struct FT_Incremental_MetricsRec_* FT_Incremental_Metrics; + + + /*************************************************************************** + * + * @type: + * FT_Incremental_GetGlyphDataFunc + * + * @description: + * A function called by FreeType to access a given glyph's data bytes + * during @FT_Load_Glyph or @FT_Load_Char if incremental loading is + * enabled. + * + * Note that the format of the glyph's data bytes depends on the font + * file format. For TrueType, it must correspond to the raw bytes within + * the `glyf' table. For PostScript formats, it must correspond to the + * *unencrypted* charstring bytes, without any `lenIV' header. It is + * undefined for any other format. + * + * @input: + * incremental :: + * Handle to an opaque @FT_Incremental handle provided by the client + * application. + * + * glyph_index :: + * Index of relevant glyph. + * + * @output: + * adata :: + * A structure describing the returned glyph data bytes (which will be + * accessed as a read-only byte block). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If this function returns successfully the method + * @FT_Incremental_FreeGlyphDataFunc will be called later to release + * the data bytes. + * + * Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for + * compound glyphs. + * + */ + typedef FT_Error + (*FT_Incremental_GetGlyphDataFunc)( FT_Incremental incremental, + FT_UInt glyph_index, + FT_Data* adata ); + + + /*************************************************************************** + * + * @type: + * FT_Incremental_FreeGlyphDataFunc + * + * @description: + * A function used to release the glyph data bytes returned by a + * successful call to @FT_Incremental_GetGlyphDataFunc. + * + * @input: + * incremental :: + * A handle to an opaque @FT_Incremental handle provided by the client + * application. + * + * data :: + * A structure describing the glyph data bytes (which will be accessed + * as a read-only byte block). + * + */ + typedef void + (*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental incremental, + FT_Data* data ); + + + /*************************************************************************** + * + * @type: + * FT_Incremental_GetGlyphMetricsFunc + * + * @description: + * A function used to retrieve the basic metrics of a given glyph index + * before accessing its data. This is necessary because, in certain + * formats like TrueType, the metrics are stored in a different place from + * the glyph images proper. + * + * @input: + * incremental :: + * A handle to an opaque @FT_Incremental handle provided by the client + * application. + * + * glyph_index :: + * Index of relevant glyph. + * + * vertical :: + * If true, return vertical metrics. + * + * ametrics :: + * This parameter is used for both input and output. + * The original glyph metrics, if any, in font units. If metrics are + * not available all the values must be set to zero. + * + * @output: + * ametrics :: + * The replacement glyph metrics in font units. + * + */ + typedef FT_Error + (*FT_Incremental_GetGlyphMetricsFunc) + ( FT_Incremental incremental, + FT_UInt glyph_index, + FT_Bool vertical, + FT_Incremental_MetricsRec *ametrics ); + + + /************************************************************************** + * + * @struct: + * FT_Incremental_FuncsRec + * + * @description: + * A table of functions for accessing fonts that load data + * incrementally. Used in @FT_Incremental_InterfaceRec. + * + * @fields: + * get_glyph_data :: + * The function to get glyph data. Must not be null. + * + * free_glyph_data :: + * The function to release glyph data. Must not be null. + * + * get_glyph_metrics :: + * The function to get glyph metrics. May be null if the font does + * not provide overriding glyph metrics. + * + */ + typedef struct FT_Incremental_FuncsRec_ + { + FT_Incremental_GetGlyphDataFunc get_glyph_data; + FT_Incremental_FreeGlyphDataFunc free_glyph_data; + FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics; + + } FT_Incremental_FuncsRec; + + + /*************************************************************************** + * + * @struct: + * FT_Incremental_InterfaceRec + * + * @description: + * A structure to be used with @FT_Open_Face to indicate that the user + * wants to support incremental glyph loading. You should use it with + * @FT_PARAM_TAG_INCREMENTAL as in the following example: + * + * { + * FT_Incremental_InterfaceRec inc_int; + * FT_Parameter parameter; + * FT_Open_Args open_args; + * + * + * // set up incremental descriptor + * inc_int.funcs = my_funcs; + * inc_int.object = my_object; + * + * // set up optional parameter + * parameter.tag = FT_PARAM_TAG_INCREMENTAL; + * parameter.data = &inc_int; + * + * // set up FT_Open_Args structure + * open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; + * open_args.pathname = my_font_pathname; + * open_args.num_params = 1; + * open_args.params = ¶meter; // we use one optional argument + * + * // open the font + * error = FT_Open_Face( library, &open_args, index, &face ); + * ... + * } + * + */ + typedef struct FT_Incremental_InterfaceRec_ + { + const FT_Incremental_FuncsRec* funcs; + FT_Incremental object; + + } FT_Incremental_InterfaceRec; + + + /*************************************************************************** + * + * @type: + * FT_Incremental_Interface + * + * @description: + * A pointer to an @FT_Incremental_InterfaceRec structure. + * + */ + typedef FT_Incremental_InterfaceRec* FT_Incremental_Interface; + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_INCREMENTAL + * + * @description: + * A constant used as the tag of @FT_Parameter structures to indicate + * an incremental loading object to be used by FreeType. + * + */ +#define FT_PARAM_TAG_INCREMENTAL FT_MAKE_TAG( 'i', 'n', 'c', 'r' ) + + /* */ + +FT_END_HEADER + +#endif /* __FTINCREM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftlcdfil.h b/uppsrc/plugin/FT_fontsys/ftlcdfil.h new file mode 100644 index 000000000..a723bee24 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftlcdfil.h @@ -0,0 +1,213 @@ +/***************************************************************************/ +/* */ +/* ftlcdfil.h */ +/* */ +/* FreeType API for color filtering of subpixel bitmap glyphs */ +/* (specification). */ +/* */ +/* Copyright 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FT_LCD_FILTER_H__ +#define __FT_LCD_FILTER_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************** + * + * @section: + * lcd_filtering + * + * @title: + * LCD Filtering + * + * @abstract: + * Reduce color fringes of LCD-optimized bitmaps. + * + * @description: + * The @FT_Library_SetLcdFilter API can be used to specify a low-pass + * filter which is then applied to LCD-optimized bitmaps generated + * through @FT_Render_Glyph. This is useful to reduce color fringes + * which would occur with unfiltered rendering. + * + * Note that no filter is active by default, and that this function is + * *not* implemented in default builds of the library. You need to + * #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your `ftoption.h' file + * in order to activate it. + */ + + + /**************************************************************************** + * + * @enum: + * FT_LcdFilter + * + * @description: + * A list of values to identify various types of LCD filters. + * + * @values: + * FT_LCD_FILTER_NONE :: + * Do not perform filtering. When used with subpixel rendering, this + * results in sometimes severe color fringes. + * + * FT_LCD_FILTER_DEFAULT :: + * The default filter reduces color fringes considerably, at the cost + * of a slight blurriness in the output. + * + * FT_LCD_FILTER_LIGHT :: + * The light filter is a variant that produces less blurriness at the + * cost of slightly more color fringes than the default one. It might + * be better, depending on taste, your monitor, or your personal vision. + * + * FT_LCD_FILTER_LEGACY :: + * This filter corresponds to the original libXft color filter. It + * provides high contrast output but can exhibit really bad color + * fringes if glyphs are not extremely well hinted to the pixel grid. + * In other words, it only works well if the TrueType bytecode + * interpreter is enabled *and* high-quality hinted fonts are used. + * + * This filter is only provided for comparison purposes, and might be + * disabled or stay unsupported in the future. + * + * @since: + * 2.3.0 + */ + typedef enum FT_LcdFilter_ + { + FT_LCD_FILTER_NONE = 0, + FT_LCD_FILTER_DEFAULT = 1, + FT_LCD_FILTER_LIGHT = 2, + FT_LCD_FILTER_LEGACY = 16, + + FT_LCD_FILTER_MAX /* do not remove */ + + } FT_LcdFilter; + + + /************************************************************************** + * + * @func: + * FT_Library_SetLcdFilter + * + * @description: + * This function is used to apply color filtering to LCD decimated + * bitmaps, like the ones used when calling @FT_Render_Glyph with + * @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V. + * + * @input: + * library :: + * A handle to the target library instance. + * + * filter :: + * The filter type. + * + * You can use @FT_LCD_FILTER_NONE here to disable this feature, or + * @FT_LCD_FILTER_DEFAULT to use a default filter that should work + * well on most LCD screens. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This feature is always disabled by default. Clients must make an + * explicit call to this function with a `filter' value other than + * @FT_LCD_FILTER_NONE in order to enable it. + * + * Due to *PATENTS* covering subpixel rendering, this function doesn't + * do anything except returning `FT_Err_Unimplemented_Feature' if the + * configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not + * defined in your build of the library, which should correspond to all + * default builds of FreeType. + * + * The filter affects glyph bitmaps rendered through @FT_Render_Glyph, + * @FT_Outline_Get_Bitmap, @FT_Load_Glyph, and @FT_Load_Char. + * + * It does _not_ affect the output of @FT_Outline_Render and + * @FT_Outline_Get_Bitmap. + * + * If this feature is activated, the dimensions of LCD glyph bitmaps are + * either larger or taller than the dimensions of the corresponding + * outline with regards to the pixel grid. For example, for + * @FT_RENDER_MODE_LCD, the filter adds up to 3~pixels to the left, and + * up to 3~pixels to the right. + * + * The bitmap offset values are adjusted correctly, so clients shouldn't + * need to modify their layout and glyph positioning code when enabling + * the filter. + * + * @since: + * 2.3.0 + */ + FT_EXPORT( FT_Error ) + FT_Library_SetLcdFilter( FT_Library library, + FT_LcdFilter filter ); + + + /************************************************************************** + * + * @func: + * FT_Library_SetLcdFilterWeights + * + * @description: + * Use this function to override the filter weights selected by + * @FT_Library_SetLcdFilter. By default, FreeType uses the quintuple + * (0x00, 0x55, 0x56, 0x55, 0x00) for FT_LCD_FILTER_LIGHT, and (0x10, + * 0x40, 0x70, 0x40, 0x10) for FT_LCD_FILTER_DEFAULT and + * FT_LCD_FILTER_LEGACY. + * + * @input: + * library :: + * A handle to the target library instance. + * + * weights :: + * A pointer to an array; the function copies the first five bytes and + * uses them to specify the filter weights. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * Due to *PATENTS* covering subpixel rendering, this function doesn't + * do anything except returning `FT_Err_Unimplemented_Feature' if the + * configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not + * defined in your build of the library, which should correspond to all + * default builds of FreeType. + * + * This function must be called after @FT_Library_SetLcdFilter to have + * any effect. + * + * @since: + * 2.4.0 + */ + FT_EXPORT( FT_Error ) + FT_Library_SetLcdFilterWeights( FT_Library library, + unsigned char *weights ); + + /* */ + + +FT_END_HEADER + +#endif /* __FT_LCD_FILTER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftlist.h b/uppsrc/plugin/FT_fontsys/ftlist.h new file mode 100644 index 000000000..188fc12a1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftlist.h @@ -0,0 +1,277 @@ +/***************************************************************************/ +/* */ +/* ftlist.h */ +/* */ +/* Generic list support for FreeType (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file implements functions relative to list processing. Its */ + /* data structures are defined in `freetype.h'. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTLIST_H__ +#define __FTLIST_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* list_processing */ + /* */ + /* <Title> */ + /* List Processing */ + /* */ + /* <Abstract> */ + /* Simple management of lists. */ + /* */ + /* <Description> */ + /* This section contains various definitions related to list */ + /* processing using doubly-linked nodes. */ + /* */ + /* <Order> */ + /* FT_List */ + /* FT_ListNode */ + /* FT_ListRec */ + /* FT_ListNodeRec */ + /* */ + /* FT_List_Add */ + /* FT_List_Insert */ + /* FT_List_Find */ + /* FT_List_Remove */ + /* FT_List_Up */ + /* FT_List_Iterate */ + /* FT_List_Iterator */ + /* FT_List_Finalize */ + /* FT_List_Destructor */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Find */ + /* */ + /* <Description> */ + /* Find the list node for a given listed object. */ + /* */ + /* <Input> */ + /* list :: A pointer to the parent list. */ + /* data :: The address of the listed object. */ + /* */ + /* <Return> */ + /* List node. NULL if it wasn't found. */ + /* */ + FT_EXPORT( FT_ListNode ) + FT_List_Find( FT_List list, + void* data ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Add */ + /* */ + /* <Description> */ + /* Append an element to the end of a list. */ + /* */ + /* <InOut> */ + /* list :: A pointer to the parent list. */ + /* node :: The node to append. */ + /* */ + FT_EXPORT( void ) + FT_List_Add( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Insert */ + /* */ + /* <Description> */ + /* Insert an element at the head of a list. */ + /* */ + /* <InOut> */ + /* list :: A pointer to parent list. */ + /* node :: The node to insert. */ + /* */ + FT_EXPORT( void ) + FT_List_Insert( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Remove */ + /* */ + /* <Description> */ + /* Remove a node from a list. This function doesn't check whether */ + /* the node is in the list! */ + /* */ + /* <Input> */ + /* node :: The node to remove. */ + /* */ + /* <InOut> */ + /* list :: A pointer to the parent list. */ + /* */ + FT_EXPORT( void ) + FT_List_Remove( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Up */ + /* */ + /* <Description> */ + /* Move a node to the head/top of a list. Used to maintain LRU */ + /* lists. */ + /* */ + /* <InOut> */ + /* list :: A pointer to the parent list. */ + /* node :: The node to move. */ + /* */ + FT_EXPORT( void ) + FT_List_Up( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_List_Iterator */ + /* */ + /* <Description> */ + /* An FT_List iterator function which is called during a list parse */ + /* by @FT_List_Iterate. */ + /* */ + /* <Input> */ + /* node :: The current iteration list node. */ + /* */ + /* user :: A typeless pointer passed to @FT_List_Iterate. */ + /* Can be used to point to the iteration's state. */ + /* */ + typedef FT_Error + (*FT_List_Iterator)( FT_ListNode node, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Iterate */ + /* */ + /* <Description> */ + /* Parse a list and calls a given iterator function on each element. */ + /* Note that parsing is stopped as soon as one of the iterator calls */ + /* returns a non-zero value. */ + /* */ + /* <Input> */ + /* list :: A handle to the list. */ + /* iterator :: An iterator function, called on each node of the list. */ + /* user :: A user-supplied field which is passed as the second */ + /* argument to the iterator. */ + /* */ + /* <Return> */ + /* The result (a FreeType error code) of the last iterator call. */ + /* */ + FT_EXPORT( FT_Error ) + FT_List_Iterate( FT_List list, + FT_List_Iterator iterator, + void* user ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_List_Destructor */ + /* */ + /* <Description> */ + /* An @FT_List iterator function which is called during a list */ + /* finalization by @FT_List_Finalize to destroy all elements in a */ + /* given list. */ + /* */ + /* <Input> */ + /* system :: The current system object. */ + /* */ + /* data :: The current object to destroy. */ + /* */ + /* user :: A typeless pointer passed to @FT_List_Iterate. It can */ + /* be used to point to the iteration's state. */ + /* */ + typedef void + (*FT_List_Destructor)( FT_Memory memory, + void* data, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Finalize */ + /* */ + /* <Description> */ + /* Destroy all elements in the list as well as the list itself. */ + /* */ + /* <Input> */ + /* list :: A handle to the list. */ + /* */ + /* destroy :: A list destructor that will be applied to each element */ + /* of the list. */ + /* */ + /* memory :: The current memory object which handles deallocation. */ + /* */ + /* user :: A user-supplied field which is passed as the last */ + /* argument to the destructor. */ + /* */ + /* <Note> */ + /* This function expects that all nodes added by @FT_List_Add or */ + /* @FT_List_Insert have been dynamically allocated. */ + /* */ + FT_EXPORT( void ) + FT_List_Finalize( FT_List list, + FT_List_Destructor destroy, + FT_Memory memory, + void* user ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTLIST_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftlzw.h b/uppsrc/plugin/FT_fontsys/ftlzw.h new file mode 100644 index 000000000..95eac3b8a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftlzw.h @@ -0,0 +1,99 @@ +/***************************************************************************/ +/* */ +/* ftlzw.h */ +/* */ +/* LZW-compressed stream support. */ +/* */ +/* Copyright 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTLZW_H__ +#define __FTLZW_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* lzw */ + /* */ + /* <Title> */ + /* LZW Streams */ + /* */ + /* <Abstract> */ + /* Using LZW-compressed font files. */ + /* */ + /* <Description> */ + /* This section contains the declaration of LZW-specific functions. */ + /* */ + /*************************************************************************/ + + /************************************************************************ + * + * @function: + * FT_Stream_OpenLZW + * + * @description: + * Open a new stream to parse LZW-compressed font files. This is + * mainly used to support the compressed `*.pcf.Z' fonts that come + * with XFree86. + * + * @input: + * stream :: The target embedding stream. + * + * source :: The source stream. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source stream must be opened _before_ calling this function. + * + * Calling the internal function `FT_Stream_Close' on the new stream will + * *not* call `FT_Stream_Close' on the source stream. None of the stream + * objects will be released to the heap. + * + * The stream implementation is very basic and resets the decompression + * process each time seeking backwards is needed within the stream + * + * In certain builds of the library, LZW compression recognition is + * automatically handled when calling @FT_New_Face or @FT_Open_Face. + * This means that if no font driver is capable of handling the raw + * compressed file, the library will try to open a LZW stream from it + * and re-open the face with it. + * + * This function may return `FT_Err_Unimplemented_Feature' if your build + * of FreeType was not compiled with LZW support. + */ + FT_EXPORT( FT_Error ) + FT_Stream_OpenLZW( FT_Stream stream, + FT_Stream source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTLZW_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftmac.h b/uppsrc/plugin/FT_fontsys/ftmac.h new file mode 100644 index 000000000..cb65138b1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftmac.h @@ -0,0 +1,274 @@ +/***************************************************************************/ +/* */ +/* ftmac.h */ +/* */ +/* Additional Mac-specific API. */ +/* */ +/* Copyright 1996-2001, 2004, 2006, 2007 by */ +/* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* NOTE: Include this file after <freetype/freetype.h> and after any */ +/* Mac-specific headers (because this header uses Mac types such as */ +/* Handle, FSSpec, FSRef, etc.) */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMAC_H__ +#define __FTMAC_H__ + + +#include "ft2build.h" + + +FT_BEGIN_HEADER + + +/* gcc-3.4.1 and later can warn about functions tagged as deprecated */ +#ifndef FT_DEPRECATED_ATTRIBUTE +#if defined(__GNUC__) && \ + ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))) +#define FT_DEPRECATED_ATTRIBUTE __attribute__((deprecated)) +#else +#define FT_DEPRECATED_ATTRIBUTE +#endif +#endif + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* mac_specific */ + /* */ + /* <Title> */ + /* Mac Specific Interface */ + /* */ + /* <Abstract> */ + /* Only available on the Macintosh. */ + /* */ + /* <Description> */ + /* The following definitions are only available if FreeType is */ + /* compiled on a Macintosh. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FOND */ + /* */ + /* <Description> */ + /* Create a new face object from a FOND resource. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* fond :: A FOND resource. */ + /* */ + /* face_index :: Only supported for the -1 `sanity check' special */ + /* case. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Notes> */ + /* This function can be used to create @FT_Face objects from fonts */ + /* that are installed in the system as follows. */ + /* */ + /* { */ + /* fond = GetResource( 'FOND', fontName ); */ + /* error = FT_New_Face_From_FOND( library, fond, 0, &face ); */ + /* } */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face_From_FOND( FT_Library library, + Handle fond, + FT_Long face_index, + FT_Face *aface ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GetFile_From_Mac_Name */ + /* */ + /* <Description> */ + /* Return an FSSpec for the disk file containing the named font. */ + /* */ + /* <Input> */ + /* fontName :: Mac OS name of the font (e.g., Times New Roman */ + /* Bold). */ + /* */ + /* <Output> */ + /* pathSpec :: FSSpec to the file. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* face_index :: Index of the face. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GetFile_From_Mac_ATS_Name */ + /* */ + /* <Description> */ + /* Return an FSSpec for the disk file containing the named font. */ + /* */ + /* <Input> */ + /* fontName :: Mac OS name of the font in ATS framework. */ + /* */ + /* <Output> */ + /* pathSpec :: FSSpec to the file. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* face_index :: Index of the face. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GetFile_From_Mac_ATS_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GetFilePath_From_Mac_ATS_Name */ + /* */ + /* <Description> */ + /* Return a pathname of the disk file and face index for given font */ + /* name which is handled by ATS framework. */ + /* */ + /* <Input> */ + /* fontName :: Mac OS name of the font in ATS framework. */ + /* */ + /* <Output> */ + /* path :: Buffer to store pathname of the file. For passing */ + /* to @FT_New_Face. The client must allocate this */ + /* buffer before calling this function. */ + /* */ + /* maxPathSize :: Lengths of the buffer `path' that client allocated. */ + /* */ + /* face_index :: Index of the face. For passing to @FT_New_Face. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, + UInt8* path, + UInt32 maxPathSize, + FT_Long* face_index ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSSpec */ + /* */ + /* <Description> */ + /* Create a new face object from a given resource and typeface index */ + /* using an FSSpec to the font file. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* spec :: FSSpec to the font file. */ + /* */ + /* face_index :: The index of the face within the resource. The */ + /* first face has index~0. */ + /* <Output> */ + /* aface :: A handle to a new face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* @FT_New_Face_From_FSSpec is identical to @FT_New_Face except */ + /* it accepts an FSSpec instead of a path. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face_From_FSSpec( FT_Library library, + const FSSpec *spec, + FT_Long face_index, + FT_Face *aface ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSRef */ + /* */ + /* <Description> */ + /* Create a new face object from a given resource and typeface index */ + /* using an FSRef to the font file. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* spec :: FSRef to the font file. */ + /* */ + /* face_index :: The index of the face within the resource. The */ + /* first face has index~0. */ + /* <Output> */ + /* aface :: A handle to a new face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* @FT_New_Face_From_FSRef is identical to @FT_New_Face except */ + /* it accepts an FSRef instead of a path. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face_From_FSRef( FT_Library library, + const FSRef *ref, + FT_Long face_index, + FT_Face *aface ) + FT_DEPRECATED_ATTRIBUTE; + + /* */ + + +FT_END_HEADER + + +#endif /* __FTMAC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftmm.h b/uppsrc/plugin/FT_fontsys/ftmm.h new file mode 100644 index 000000000..e79b8141e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftmm.h @@ -0,0 +1,378 @@ +/***************************************************************************/ +/* */ +/* ftmm.h */ +/* */ +/* FreeType Multiple Master font interface (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMM_H__ +#define __FTMM_H__ + + +#include "ft2build.h" +#include FT_TYPE1_TABLES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* multiple_masters */ + /* */ + /* <Title> */ + /* Multiple Masters */ + /* */ + /* <Abstract> */ + /* How to manage Multiple Masters fonts. */ + /* */ + /* <Description> */ + /* The following types and functions are used to manage Multiple */ + /* Master fonts, i.e., the selection of specific design instances by */ + /* setting design axis coordinates. */ + /* */ + /* George Williams has extended this interface to make it work with */ + /* both Type~1 Multiple Masters fonts and GX distortable (var) */ + /* fonts. Some of these routines only work with MM fonts, others */ + /* will work with both types. They are similar enough that a */ + /* consistent interface makes sense. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_MM_Axis */ + /* */ + /* <Description> */ + /* A simple structure used to model a given axis in design space for */ + /* Multiple Masters fonts. */ + /* */ + /* This structure can't be used for GX var fonts. */ + /* */ + /* <Fields> */ + /* name :: The axis's name. */ + /* */ + /* minimum :: The axis's minimum design coordinate. */ + /* */ + /* maximum :: The axis's maximum design coordinate. */ + /* */ + typedef struct FT_MM_Axis_ + { + FT_String* name; + FT_Long minimum; + FT_Long maximum; + + } FT_MM_Axis; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Multi_Master */ + /* */ + /* <Description> */ + /* A structure used to model the axes and space of a Multiple Masters */ + /* font. */ + /* */ + /* This structure can't be used for GX var fonts. */ + /* */ + /* <Fields> */ + /* num_axis :: Number of axes. Cannot exceed~4. */ + /* */ + /* num_designs :: Number of designs; should be normally 2^num_axis */ + /* even though the Type~1 specification strangely */ + /* allows for intermediate designs to be present. This */ + /* number cannot exceed~16. */ + /* */ + /* axis :: A table of axis descriptors. */ + /* */ + typedef struct FT_Multi_Master_ + { + FT_UInt num_axis; + FT_UInt num_designs; + FT_MM_Axis axis[T1_MAX_MM_AXIS]; + + } FT_Multi_Master; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Var_Axis */ + /* */ + /* <Description> */ + /* A simple structure used to model a given axis in design space for */ + /* Multiple Masters and GX var fonts. */ + /* */ + /* <Fields> */ + /* name :: The axis's name. */ + /* Not always meaningful for GX. */ + /* */ + /* minimum :: The axis's minimum design coordinate. */ + /* */ + /* def :: The axis's default design coordinate. */ + /* FreeType computes meaningful default values for MM; it */ + /* is then an integer value, not in 16.16 format. */ + /* */ + /* maximum :: The axis's maximum design coordinate. */ + /* */ + /* tag :: The axis's tag (the GX equivalent to `name'). */ + /* FreeType provides default values for MM if possible. */ + /* */ + /* strid :: The entry in `name' table (another GX version of */ + /* `name'). */ + /* Not meaningful for MM. */ + /* */ + typedef struct FT_Var_Axis_ + { + FT_String* name; + + FT_Fixed minimum; + FT_Fixed def; + FT_Fixed maximum; + + FT_ULong tag; + FT_UInt strid; + + } FT_Var_Axis; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Var_Named_Style */ + /* */ + /* <Description> */ + /* A simple structure used to model a named style in a GX var font. */ + /* */ + /* This structure can't be used for MM fonts. */ + /* */ + /* <Fields> */ + /* coords :: The design coordinates for this style. */ + /* This is an array with one entry for each axis. */ + /* */ + /* strid :: The entry in `name' table identifying this style. */ + /* */ + typedef struct FT_Var_Named_Style_ + { + FT_Fixed* coords; + FT_UInt strid; + + } FT_Var_Named_Style; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_MM_Var */ + /* */ + /* <Description> */ + /* A structure used to model the axes and space of a Multiple Masters */ + /* or GX var distortable font. */ + /* */ + /* Some fields are specific to one format and not to the other. */ + /* */ + /* <Fields> */ + /* num_axis :: The number of axes. The maximum value is~4 for */ + /* MM; no limit in GX. */ + /* */ + /* num_designs :: The number of designs; should be normally */ + /* 2^num_axis for MM fonts. Not meaningful for GX */ + /* (where every glyph could have a different */ + /* number of designs). */ + /* */ + /* num_namedstyles :: The number of named styles; only meaningful for */ + /* GX which allows certain design coordinates to */ + /* have a string ID (in the `name' table) */ + /* associated with them. The font can tell the */ + /* user that, for example, Weight=1.5 is `Bold'. */ + /* */ + /* axis :: A table of axis descriptors. */ + /* GX fonts contain slightly more data than MM. */ + /* */ + /* namedstyles :: A table of named styles. */ + /* Only meaningful with GX. */ + /* */ + typedef struct FT_MM_Var_ + { + FT_UInt num_axis; + FT_UInt num_designs; + FT_UInt num_namedstyles; + FT_Var_Axis* axis; + FT_Var_Named_Style* namedstyle; + + } FT_MM_Var; + + + /* */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Multi_Master */ + /* */ + /* <Description> */ + /* Retrieve the Multiple Master descriptor of a given font. */ + /* */ + /* This function can't be used with GX fonts. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* <Output> */ + /* amaster :: The Multiple Masters descriptor. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Multi_Master( FT_Face face, + FT_Multi_Master *amaster ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_MM_Var */ + /* */ + /* <Description> */ + /* Retrieve the Multiple Master/GX var descriptor of a given font. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* <Output> */ + /* amaster :: The Multiple Masters/GX var descriptor. */ + /* Allocates a data structure, which the user must free */ + /* (a single call to FT_FREE will do it). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_MM_Var( FT_Face face, + FT_MM_Var* *amaster ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_MM_Design_Coordinates */ + /* */ + /* <Description> */ + /* For Multiple Masters fonts, choose an interpolated font design */ + /* through design coordinates. */ + /* */ + /* This function can't be used with GX fonts. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face. */ + /* */ + /* <Input> */ + /* num_coords :: The number of design coordinates (must be equal to */ + /* the number of axes in the font). */ + /* */ + /* coords :: An array of design coordinates. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_MM_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Var_Design_Coordinates */ + /* */ + /* <Description> */ + /* For Multiple Master or GX Var fonts, choose an interpolated font */ + /* design through design coordinates. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face. */ + /* */ + /* <Input> */ + /* num_coords :: The number of design coordinates (must be equal to */ + /* the number of axes in the font). */ + /* */ + /* coords :: An array of design coordinates. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Var_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_MM_Blend_Coordinates */ + /* */ + /* <Description> */ + /* For Multiple Masters and GX var fonts, choose an interpolated font */ + /* design through normalized blend coordinates. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face. */ + /* */ + /* <Input> */ + /* num_coords :: The number of design coordinates (must be equal to */ + /* the number of axes in the font). */ + /* */ + /* coords :: The design coordinates array (each element must be */ + /* between 0 and 1.0). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_MM_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Var_Blend_Coordinates */ + /* */ + /* <Description> */ + /* This is another name of @FT_Set_MM_Blend_Coordinates. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Var_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTMM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftmodapi.h b/uppsrc/plugin/FT_fontsys/ftmodapi.h new file mode 100644 index 000000000..b035d2a35 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftmodapi.h @@ -0,0 +1,483 @@ +/***************************************************************************/ +/* */ +/* ftmodapi.h */ +/* */ +/* FreeType modules public interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMODAPI_H__ +#define __FTMODAPI_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* module_management */ + /* */ + /* <Title> */ + /* Module Management */ + /* */ + /* <Abstract> */ + /* How to add, upgrade, and remove modules from FreeType. */ + /* */ + /* <Description> */ + /* The definitions below are used to manage modules within FreeType. */ + /* Modules can be added, upgraded, and removed at runtime. */ + /* */ + /*************************************************************************/ + + + /* module bit flags */ +#define FT_MODULE_FONT_DRIVER 1 /* this module is a font driver */ +#define FT_MODULE_RENDERER 2 /* this module is a renderer */ +#define FT_MODULE_HINTER 4 /* this module is a glyph hinter */ +#define FT_MODULE_STYLER 8 /* this module is a styler */ + +#define FT_MODULE_DRIVER_SCALABLE 0x100 /* the driver supports */ + /* scalable fonts */ +#define FT_MODULE_DRIVER_NO_OUTLINES 0x200 /* the driver does not */ + /* support vector outlines */ +#define FT_MODULE_DRIVER_HAS_HINTER 0x400 /* the driver provides its */ + /* own hinter */ + + + /* deprecated values */ +#define ft_module_font_driver FT_MODULE_FONT_DRIVER +#define ft_module_renderer FT_MODULE_RENDERER +#define ft_module_hinter FT_MODULE_HINTER +#define ft_module_styler FT_MODULE_STYLER + +#define ft_module_driver_scalable FT_MODULE_DRIVER_SCALABLE +#define ft_module_driver_no_outlines FT_MODULE_DRIVER_NO_OUTLINES +#define ft_module_driver_has_hinter FT_MODULE_DRIVER_HAS_HINTER + + + typedef FT_Pointer FT_Module_Interface; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Constructor */ + /* */ + /* <Description> */ + /* A function used to initialize (not create) a new module object. */ + /* */ + /* <Input> */ + /* module :: The module to initialize. */ + /* */ + typedef FT_Error + (*FT_Module_Constructor)( FT_Module module ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Destructor */ + /* */ + /* <Description> */ + /* A function used to finalize (not destroy) a given module object. */ + /* */ + /* <Input> */ + /* module :: The module to finalize. */ + /* */ + typedef void + (*FT_Module_Destructor)( FT_Module module ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Requester */ + /* */ + /* <Description> */ + /* A function used to query a given module for a specific interface. */ + /* */ + /* <Input> */ + /* module :: The module to finalize. */ + /* */ + /* name :: The name of the interface in the module. */ + /* */ + typedef FT_Module_Interface + (*FT_Module_Requester)( FT_Module module, + const char* name ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Module_Class */ + /* */ + /* <Description> */ + /* The module class descriptor. */ + /* */ + /* <Fields> */ + /* module_flags :: Bit flags describing the module. */ + /* */ + /* module_size :: The size of one module object/instance in */ + /* bytes. */ + /* */ + /* module_name :: The name of the module. */ + /* */ + /* module_version :: The version, as a 16.16 fixed number */ + /* (major.minor). */ + /* */ + /* module_requires :: The version of FreeType this module requires, */ + /* as a 16.16 fixed number (major.minor). Starts */ + /* at version 2.0, i.e., 0x20000. */ + /* */ + /* module_init :: The initializing function. */ + /* */ + /* module_done :: The finalizing function. */ + /* */ + /* get_interface :: The interface requesting function. */ + /* */ + typedef struct FT_Module_Class_ + { + FT_ULong module_flags; + FT_Long module_size; + const FT_String* module_name; + FT_Fixed module_version; + FT_Fixed module_requires; + + const void* module_interface; + + FT_Module_Constructor module_init; + FT_Module_Destructor module_done; + FT_Module_Requester get_interface; + + } FT_Module_Class; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Add_Module */ + /* */ + /* <Description> */ + /* Add a new module to a given library instance. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library object. */ + /* */ + /* <Input> */ + /* clazz :: A pointer to class descriptor for the module. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* An error will be returned if a module already exists by that name, */ + /* or if the module requires a version of FreeType that is too great. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Add_Module( FT_Library library, + const FT_Module_Class* clazz ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Module */ + /* */ + /* <Description> */ + /* Find a module by its name. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object. */ + /* */ + /* module_name :: The module's name (as an ASCII string). */ + /* */ + /* <Return> */ + /* A module handle. 0~if none was found. */ + /* */ + /* <Note> */ + /* FreeType's internal modules aren't documented very well, and you */ + /* should look up the source code for details. */ + /* */ + FT_EXPORT( FT_Module ) + FT_Get_Module( FT_Library library, + const char* module_name ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Remove_Module */ + /* */ + /* <Description> */ + /* Remove a given module from a library instance. */ + /* */ + /* <InOut> */ + /* library :: A handle to a library object. */ + /* */ + /* <Input> */ + /* module :: A handle to a module object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The module object is destroyed by the function in case of success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Remove_Module( FT_Library library, + FT_Module module ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Reference_Library */ + /* */ + /* <Description> */ + /* A counter gets initialized to~1 at the time an @FT_Library */ + /* structure is created. This function increments the counter. */ + /* @FT_Done_Library then only destroys a library if the counter is~1, */ + /* otherwise it simply decrements the counter. */ + /* */ + /* This function helps in managing life-cycles of structures which */ + /* reference @FT_Library objects. */ + /* */ + /* <Input> */ + /* library :: A handle to a target library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Since> */ + /* 2.4.2 */ + /* */ + FT_EXPORT( FT_Error ) + FT_Reference_Library( FT_Library library ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Library */ + /* */ + /* <Description> */ + /* This function is used to create a new FreeType library instance */ + /* from a given memory object. It is thus possible to use libraries */ + /* with distinct memory allocators within the same program. */ + /* */ + /* Normally, you would call this function (followed by a call to */ + /* @FT_Add_Default_Modules or a series of calls to @FT_Add_Module) */ + /* instead of @FT_Init_FreeType to initialize the FreeType library. */ + /* */ + /* Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a */ + /* library instance. */ + /* */ + /* <Input> */ + /* memory :: A handle to the original memory object. */ + /* */ + /* <Output> */ + /* alibrary :: A pointer to handle of a new library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Library. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Library( FT_Memory memory, + FT_Library *alibrary ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Library */ + /* */ + /* <Description> */ + /* Discard a given library object. This closes all drivers and */ + /* discards all resource objects. */ + /* */ + /* <Input> */ + /* library :: A handle to the target library. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Library. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_Library( FT_Library library ); + +/* */ + + typedef void + (*FT_DebugHook_Func)( void* arg ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Debug_Hook */ + /* */ + /* <Description> */ + /* Set a debug hook function for debugging the interpreter of a font */ + /* format. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library object. */ + /* */ + /* <Input> */ + /* hook_index :: The index of the debug hook. You should use the */ + /* values defined in `ftobjs.h', e.g., */ + /* `FT_DEBUG_HOOK_TRUETYPE'. */ + /* */ + /* debug_hook :: The function used to debug the interpreter. */ + /* */ + /* <Note> */ + /* Currently, four debug hook slots are available, but only two (for */ + /* the TrueType and the Type~1 interpreter) are defined. */ + /* */ + /* Since the internal headers of FreeType are no longer installed, */ + /* the symbol `FT_DEBUG_HOOK_TRUETYPE' isn't available publicly. */ + /* This is a bug and will be fixed in a forthcoming release. */ + /* */ + FT_EXPORT( void ) + FT_Set_Debug_Hook( FT_Library library, + FT_UInt hook_index, + FT_DebugHook_Func debug_hook ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Add_Default_Modules */ + /* */ + /* <Description> */ + /* Add the set of default drivers to a given library object. */ + /* This is only useful when you create a library object with */ + /* @FT_New_Library (usually to plug a custom memory manager). */ + /* */ + /* <InOut> */ + /* library :: A handle to a new library object. */ + /* */ + FT_EXPORT( void ) + FT_Add_Default_Modules( FT_Library library ); + + + + /************************************************************************** + * + * @section: + * truetype_engine + * + * @title: + * The TrueType Engine + * + * @abstract: + * TrueType bytecode support. + * + * @description: + * This section contains a function used to query the level of TrueType + * bytecode support compiled in this version of the library. + * + */ + + + /************************************************************************** + * + * @enum: + * FT_TrueTypeEngineType + * + * @description: + * A list of values describing which kind of TrueType bytecode + * engine is implemented in a given FT_Library instance. It is used + * by the @FT_Get_TrueType_Engine_Type function. + * + * @values: + * FT_TRUETYPE_ENGINE_TYPE_NONE :: + * The library doesn't implement any kind of bytecode interpreter. + * + * FT_TRUETYPE_ENGINE_TYPE_UNPATENTED :: + * The library implements a bytecode interpreter that doesn't + * support the patented operations of the TrueType virtual machine. + * + * Its main use is to load certain Asian fonts which position and + * scale glyph components with bytecode instructions. It produces + * bad output for most other fonts. + * + * FT_TRUETYPE_ENGINE_TYPE_PATENTED :: + * The library implements a bytecode interpreter that covers + * the full instruction set of the TrueType virtual machine (this + * was governed by patents until May 2010, hence the name). + * + * @since: + * 2.2 + * + */ + typedef enum FT_TrueTypeEngineType_ + { + FT_TRUETYPE_ENGINE_TYPE_NONE = 0, + FT_TRUETYPE_ENGINE_TYPE_UNPATENTED, + FT_TRUETYPE_ENGINE_TYPE_PATENTED + + } FT_TrueTypeEngineType; + + + /************************************************************************** + * + * @func: + * FT_Get_TrueType_Engine_Type + * + * @description: + * Return an @FT_TrueTypeEngineType value to indicate which level of + * the TrueType virtual machine a given library instance supports. + * + * @input: + * library :: + * A library instance. + * + * @return: + * A value indicating which level is supported. + * + * @since: + * 2.2 + * + */ + FT_EXPORT( FT_TrueTypeEngineType ) + FT_Get_TrueType_Engine_Type( FT_Library library ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTMODAPI_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftmoderr.h b/uppsrc/plugin/FT_fontsys/ftmoderr.h new file mode 100644 index 000000000..1bf3b384a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftmoderr.h @@ -0,0 +1,156 @@ +/***************************************************************************/ +/* */ +/* ftmoderr.h */ +/* */ +/* FreeType module error offsets (specification). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the FreeType module error offsets. */ + /* */ + /* The lower byte gives the error code, the higher byte gives the */ + /* module. The base module has error offset 0. For example, the error */ + /* `FT_Err_Invalid_File_Format' has value 0x003, the error */ + /* `TT_Err_Invalid_File_Format' has value 0x1103, the error */ + /* `T1_Err_Invalid_File_Format' has value 0x1203, etc. */ + /* */ + /* Undefine the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in ftoption.h */ + /* to make the higher byte always zero (disabling the module error */ + /* mechanism). */ + /* */ + /* It can also be used to create a module error message table easily */ + /* with something like */ + /* */ + /* { */ + /* #undef __FTMODERR_H__ */ + /* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s }, */ + /* #define FT_MODERR_START_LIST { */ + /* #define FT_MODERR_END_LIST { 0, 0 } }; */ + /* */ + /* const struct */ + /* { */ + /* int mod_err_offset; */ + /* const char* mod_err_msg */ + /* } ft_mod_errors[] = */ + /* */ + /* #include FT_MODULE_ERRORS_H */ + /* } */ + /* */ + /* To use such a table, all errors must be ANDed with 0xFF00 to remove */ + /* the error code. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTMODERR_H__ +#define __FTMODERR_H__ + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** SETUP MACROS *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#undef FT_NEED_EXTERN_C + +#ifndef FT_MODERRDEF + +#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS +#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v, +#else +#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0, +#endif + +#define FT_MODERR_START_LIST enum { +#define FT_MODERR_END_LIST FT_Mod_Err_Max }; + +#ifdef __cplusplus +#define FT_NEED_EXTERN_C + extern "C" { +#endif + +#endif /* !FT_MODERRDEF */ + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** LIST MODULE ERROR BASES *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#ifdef FT_MODERR_START_LIST + FT_MODERR_START_LIST +#endif + + + FT_MODERRDEF( Base, 0x000, "base module" ) + FT_MODERRDEF( Autofit, 0x100, "autofitter module" ) + FT_MODERRDEF( BDF, 0x200, "BDF module" ) + FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" ) + FT_MODERRDEF( Cache, 0x400, "cache module" ) + FT_MODERRDEF( CFF, 0x500, "CFF module" ) + FT_MODERRDEF( CID, 0x600, "CID module" ) + FT_MODERRDEF( Gzip, 0x700, "Gzip module" ) + FT_MODERRDEF( LZW, 0x800, "LZW module" ) + FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" ) + FT_MODERRDEF( PCF, 0xA00, "PCF module" ) + FT_MODERRDEF( PFR, 0xB00, "PFR module" ) + FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" ) + FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" ) + FT_MODERRDEF( PSnames, 0xE00, "PS names module" ) + FT_MODERRDEF( Raster, 0xF00, "raster module" ) + FT_MODERRDEF( SFNT, 0x1000, "SFNT module" ) + FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" ) + FT_MODERRDEF( TrueType, 0x1200, "TrueType module" ) + FT_MODERRDEF( Type1, 0x1300, "Type 1 module" ) + FT_MODERRDEF( Type42, 0x1400, "Type 42 module" ) + FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" ) + + +#ifdef FT_MODERR_END_LIST + FT_MODERR_END_LIST +#endif + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** CLEANUP *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#ifdef FT_NEED_EXTERN_C + } +#endif + +#undef FT_MODERR_START_LIST +#undef FT_MODERR_END_LIST +#undef FT_MODERRDEF +#undef FT_NEED_EXTERN_C + + +#endif /* __FTMODERR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftotval.h b/uppsrc/plugin/FT_fontsys/ftotval.h new file mode 100644 index 000000000..db2804691 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftotval.h @@ -0,0 +1,203 @@ +/***************************************************************************/ +/* */ +/* ftotval.h */ +/* */ +/* FreeType API for validating OpenType tables (specification). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* */ +/* Warning: This module might be moved to a different library in the */ +/* future to avoid a tight dependency between FreeType and the */ +/* OpenType specification. */ +/* */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOTVAL_H__ +#define __FTOTVAL_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* ot_validation */ + /* */ + /* <Title> */ + /* OpenType Validation */ + /* */ + /* <Abstract> */ + /* An API to validate OpenType tables. */ + /* */ + /* <Description> */ + /* This section contains the declaration of functions to validate */ + /* some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH). */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @enum: + * FT_VALIDATE_OTXXX + * + * @description: + * A list of bit-field constants used with @FT_OpenType_Validate to + * indicate which OpenType tables should be validated. + * + * @values: + * FT_VALIDATE_BASE :: + * Validate BASE table. + * + * FT_VALIDATE_GDEF :: + * Validate GDEF table. + * + * FT_VALIDATE_GPOS :: + * Validate GPOS table. + * + * FT_VALIDATE_GSUB :: + * Validate GSUB table. + * + * FT_VALIDATE_JSTF :: + * Validate JSTF table. + * + * FT_VALIDATE_MATH :: + * Validate MATH table. + * + * FT_VALIDATE_OT :: + * Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH). + * + */ +#define FT_VALIDATE_BASE 0x0100 +#define FT_VALIDATE_GDEF 0x0200 +#define FT_VALIDATE_GPOS 0x0400 +#define FT_VALIDATE_GSUB 0x0800 +#define FT_VALIDATE_JSTF 0x1000 +#define FT_VALIDATE_MATH 0x2000 + +#define FT_VALIDATE_OT FT_VALIDATE_BASE | \ + FT_VALIDATE_GDEF | \ + FT_VALIDATE_GPOS | \ + FT_VALIDATE_GSUB | \ + FT_VALIDATE_JSTF | \ + FT_VALIDATE_MATH + + /* */ + + /********************************************************************** + * + * @function: + * FT_OpenType_Validate + * + * @description: + * Validate various OpenType tables to assure that all offsets and + * indices are valid. The idea is that a higher-level library which + * actually does the text layout can access those tables without + * error checking (which can be quite time consuming). + * + * @input: + * face :: + * A handle to the input face. + * + * validation_flags :: + * A bit field which specifies the tables to be validated. See + * @FT_VALIDATE_OTXXX for possible values. + * + * @output: + * BASE_table :: + * A pointer to the BASE table. + * + * GDEF_table :: + * A pointer to the GDEF table. + * + * GPOS_table :: + * A pointer to the GPOS table. + * + * GSUB_table :: + * A pointer to the GSUB table. + * + * JSTF_table :: + * A pointer to the JSTF table. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with OpenType fonts, returning an error + * otherwise. + * + * After use, the application should deallocate the five tables with + * @FT_OpenType_Free. A NULL value indicates that the table either + * doesn't exist in the font, or the application hasn't asked for + * validation. + */ + FT_EXPORT( FT_Error ) + FT_OpenType_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *BASE_table, + FT_Bytes *GDEF_table, + FT_Bytes *GPOS_table, + FT_Bytes *GSUB_table, + FT_Bytes *JSTF_table ); + + /* */ + + /********************************************************************** + * + * @function: + * FT_OpenType_Free + * + * @description: + * Free the buffer allocated by OpenType validator. + * + * @input: + * face :: + * A handle to the input face. + * + * table :: + * The pointer to the buffer that is allocated by + * @FT_OpenType_Validate. + * + * @note: + * This function must be used to free the buffer allocated by + * @FT_OpenType_Validate only. + */ + FT_EXPORT( void ) + FT_OpenType_Free( FT_Face face, + FT_Bytes table ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTOTVAL_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftoutln.h b/uppsrc/plugin/FT_fontsys/ftoutln.h new file mode 100644 index 000000000..34c7725b3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftoutln.h @@ -0,0 +1,540 @@ +/***************************************************************************/ +/* */ +/* ftoutln.h */ +/* */ +/* Support for the FT_Outline type used to store glyph shapes of */ +/* most scalable font formats (specification). */ +/* */ +/* Copyright 1996-2003, 2005-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOUTLN_H__ +#define __FTOUTLN_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* outline_processing */ + /* */ + /* <Title> */ + /* Outline Processing */ + /* */ + /* <Abstract> */ + /* Functions to create, transform, and render vectorial glyph images. */ + /* */ + /* <Description> */ + /* This section contains routines used to create and destroy scalable */ + /* glyph images known as `outlines'. These can also be measured, */ + /* transformed, and converted into bitmaps and pixmaps. */ + /* */ + /* <Order> */ + /* FT_Outline */ + /* FT_OUTLINE_FLAGS */ + /* FT_Outline_New */ + /* FT_Outline_Done */ + /* FT_Outline_Copy */ + /* FT_Outline_Translate */ + /* FT_Outline_Transform */ + /* FT_Outline_Embolden */ + /* FT_Outline_Reverse */ + /* FT_Outline_Check */ + /* */ + /* FT_Outline_Get_CBox */ + /* FT_Outline_Get_BBox */ + /* */ + /* FT_Outline_Get_Bitmap */ + /* FT_Outline_Render */ + /* */ + /* FT_Outline_Decompose */ + /* FT_Outline_Funcs */ + /* FT_Outline_MoveTo_Func */ + /* FT_Outline_LineTo_Func */ + /* FT_Outline_ConicTo_Func */ + /* FT_Outline_CubicTo_Func */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Decompose */ + /* */ + /* <Description> */ + /* Walk over an outline's structure to decompose it into individual */ + /* segments and Bézier arcs. This function also emits `move to' */ + /* operations to indicate the start of new contours in the outline. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source target. */ + /* */ + /* func_interface :: A table of `emitters', i.e., function pointers */ + /* called during decomposition to indicate path */ + /* operations. */ + /* */ + /* <InOut> */ + /* user :: A typeless pointer which is passed to each */ + /* emitter during the decomposition. It can be */ + /* used to store the state during the */ + /* decomposition. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Decompose( FT_Outline* outline, + const FT_Outline_Funcs* func_interface, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_New */ + /* */ + /* <Description> */ + /* Create a new outline of a given size. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object from where the */ + /* outline is allocated. Note however that the new */ + /* outline will *not* necessarily be *freed*, when */ + /* destroying the library, by @FT_Done_FreeType. */ + /* */ + /* numPoints :: The maximal number of points within the outline. */ + /* */ + /* numContours :: The maximal number of contours within the outline. */ + /* */ + /* <Output> */ + /* anoutline :: A handle to the new outline. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The reason why this function takes a `library' parameter is simply */ + /* to use the library's memory allocator. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_New( FT_Library library, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ); + + + FT_EXPORT( FT_Error ) + FT_Outline_New_Internal( FT_Memory memory, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Done */ + /* */ + /* <Description> */ + /* Destroy an outline created with @FT_Outline_New. */ + /* */ + /* <Input> */ + /* library :: A handle of the library object used to allocate the */ + /* outline. */ + /* */ + /* outline :: A pointer to the outline object to be discarded. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If the outline's `owner' field is not set, only the outline */ + /* descriptor will be released. */ + /* */ + /* The reason why this function takes an `library' parameter is */ + /* simply to use ft_mem_free(). */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Done( FT_Library library, + FT_Outline* outline ); + + + FT_EXPORT( FT_Error ) + FT_Outline_Done_Internal( FT_Memory memory, + FT_Outline* outline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Check */ + /* */ + /* <Description> */ + /* Check the contents of an outline descriptor. */ + /* */ + /* <Input> */ + /* outline :: A handle to a source outline. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Check( FT_Outline* outline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Get_CBox */ + /* */ + /* <Description> */ + /* Return an outline's `control box'. The control box encloses all */ + /* the outline's points, including Bézier control points. Though it */ + /* coincides with the exact bounding box for most glyphs, it can be */ + /* slightly larger in some situations (like when rotating an outline */ + /* which contains Bézier outside arcs). */ + /* */ + /* Computing the control box is very fast, while getting the bounding */ + /* box can take much more time as it needs to walk over all segments */ + /* and arcs in the outline. To get the latter, you can use the */ + /* `ftbbox' component which is dedicated to this single task. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source outline descriptor. */ + /* */ + /* <Output> */ + /* acbox :: The outline's control box. */ + /* */ + /* <Note> */ + /* See @FT_Glyph_Get_CBox for a discussion of tricky fonts. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Get_CBox( const FT_Outline* outline, + FT_BBox *acbox ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Translate */ + /* */ + /* <Description> */ + /* Apply a simple translation to the points of an outline. */ + /* */ + /* <InOut> */ + /* outline :: A pointer to the target outline descriptor. */ + /* */ + /* <Input> */ + /* xOffset :: The horizontal offset. */ + /* */ + /* yOffset :: The vertical offset. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Translate( const FT_Outline* outline, + FT_Pos xOffset, + FT_Pos yOffset ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Copy */ + /* */ + /* <Description> */ + /* Copy an outline into another one. Both objects must have the */ + /* same sizes (number of points & number of contours) when this */ + /* function is called. */ + /* */ + /* <Input> */ + /* source :: A handle to the source outline. */ + /* */ + /* <Output> */ + /* target :: A handle to the target outline. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Copy( const FT_Outline* source, + FT_Outline *target ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Transform */ + /* */ + /* <Description> */ + /* Apply a simple 2x2 matrix to all of an outline's points. Useful */ + /* for applying rotations, slanting, flipping, etc. */ + /* */ + /* <InOut> */ + /* outline :: A pointer to the target outline descriptor. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to the transformation matrix. */ + /* */ + /* <Note> */ + /* You can use @FT_Outline_Translate if you need to translate the */ + /* outline's points. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Transform( const FT_Outline* outline, + const FT_Matrix* matrix ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Embolden */ + /* */ + /* <Description> */ + /* Embolden an outline. The new outline will be at most 4~times */ + /* `strength' pixels wider and higher. You may think of the left and */ + /* bottom borders as unchanged. */ + /* */ + /* Negative `strength' values to reduce the outline thickness are */ + /* possible also. */ + /* */ + /* <InOut> */ + /* outline :: A handle to the target outline. */ + /* */ + /* <Input> */ + /* strength :: How strong the glyph is emboldened. Expressed in */ + /* 26.6 pixel format. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The used algorithm to increase or decrease the thickness of the */ + /* glyph doesn't change the number of points; this means that certain */ + /* situations like acute angles or intersections are sometimes */ + /* handled incorrectly. */ + /* */ + /* If you need `better' metrics values you should call */ + /* @FT_Outline_Get_CBox or @FT_Outline_Get_BBox. */ + /* */ + /* Example call: */ + /* */ + /* { */ + /* FT_Load_Glyph( face, index, FT_LOAD_DEFAULT ); */ + /* if ( face->slot->format == FT_GLYPH_FORMAT_OUTLINE ) */ + /* FT_Outline_Embolden( &face->slot->outline, strength ); */ + /* } */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Embolden( FT_Outline* outline, + FT_Pos strength ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Reverse */ + /* */ + /* <Description> */ + /* Reverse the drawing direction of an outline. This is used to */ + /* ensure consistent fill conventions for mirrored glyphs. */ + /* */ + /* <InOut> */ + /* outline :: A pointer to the target outline descriptor. */ + /* */ + /* <Note> */ + /* This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in */ + /* the outline's `flags' field. */ + /* */ + /* It shouldn't be used by a normal client application, unless it */ + /* knows what it is doing. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Reverse( FT_Outline* outline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Get_Bitmap */ + /* */ + /* <Description> */ + /* Render an outline within a bitmap. The outline's image is simply */ + /* OR-ed to the target bitmap. */ + /* */ + /* <Input> */ + /* library :: A handle to a FreeType library object. */ + /* */ + /* outline :: A pointer to the source outline descriptor. */ + /* */ + /* <InOut> */ + /* abitmap :: A pointer to the target bitmap descriptor. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function does NOT CREATE the bitmap, it only renders an */ + /* outline image within the one you pass to it! Consequently, the */ + /* various fields in `abitmap' should be set accordingly. */ + /* */ + /* It will use the raster corresponding to the default glyph format. */ + /* */ + /* The value of the `num_grays' field in `abitmap' is ignored. If */ + /* you select the gray-level rasterizer, and you want less than 256 */ + /* gray levels, you have to use @FT_Outline_Render directly. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Get_Bitmap( FT_Library library, + FT_Outline* outline, + const FT_Bitmap *abitmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Render */ + /* */ + /* <Description> */ + /* Render an outline within a bitmap using the current scan-convert. */ + /* This function uses an @FT_Raster_Params structure as an argument, */ + /* allowing advanced features like direct composition, translucency, */ + /* etc. */ + /* */ + /* <Input> */ + /* library :: A handle to a FreeType library object. */ + /* */ + /* outline :: A pointer to the source outline descriptor. */ + /* */ + /* <InOut> */ + /* params :: A pointer to an @FT_Raster_Params structure used to */ + /* describe the rendering operation. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* You should know what you are doing and how @FT_Raster_Params works */ + /* to use this function. */ + /* */ + /* The field `params.source' will be set to `outline' before the scan */ + /* converter is called, which means that the value you give to it is */ + /* actually ignored. */ + /* */ + /* The gray-level rasterizer always uses 256 gray levels. If you */ + /* want less gray levels, you have to provide your own span callback. */ + /* See the @FT_RASTER_FLAG_DIRECT value of the `flags' field in the */ + /* @FT_Raster_Params structure for more details. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Render( FT_Library library, + FT_Outline* outline, + FT_Raster_Params* params ); + + + /************************************************************************** + * + * @enum: + * FT_Orientation + * + * @description: + * A list of values used to describe an outline's contour orientation. + * + * The TrueType and PostScript specifications use different conventions + * to determine whether outline contours should be filled or unfilled. + * + * @values: + * FT_ORIENTATION_TRUETYPE :: + * According to the TrueType specification, clockwise contours must + * be filled, and counter-clockwise ones must be unfilled. + * + * FT_ORIENTATION_POSTSCRIPT :: + * According to the PostScript specification, counter-clockwise contours + * must be filled, and clockwise ones must be unfilled. + * + * FT_ORIENTATION_FILL_RIGHT :: + * This is identical to @FT_ORIENTATION_TRUETYPE, but is used to + * remember that in TrueType, everything that is to the right of + * the drawing direction of a contour must be filled. + * + * FT_ORIENTATION_FILL_LEFT :: + * This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to + * remember that in PostScript, everything that is to the left of + * the drawing direction of a contour must be filled. + * + * FT_ORIENTATION_NONE :: + * The orientation cannot be determined. That is, different parts of + * the glyph have different orientation. + * + */ + typedef enum FT_Orientation_ + { + FT_ORIENTATION_TRUETYPE = 0, + FT_ORIENTATION_POSTSCRIPT = 1, + FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE, + FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT, + FT_ORIENTATION_NONE + + } FT_Orientation; + + + /************************************************************************** + * + * @function: + * FT_Outline_Get_Orientation + * + * @description: + * This function analyzes a glyph outline and tries to compute its + * fill orientation (see @FT_Orientation). This is done by computing + * the direction of each global horizontal and/or vertical extrema + * within the outline. + * + * Note that this will return @FT_ORIENTATION_TRUETYPE for empty + * outlines. + * + * @input: + * outline :: + * A handle to the source outline. + * + * @return: + * The orientation. + * + */ + FT_EXPORT( FT_Orientation ) + FT_Outline_Get_Orientation( FT_Outline* outline ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTOUTLN_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/ftpfr.h b/uppsrc/plugin/FT_fontsys/ftpfr.h new file mode 100644 index 000000000..d79212979 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftpfr.h @@ -0,0 +1,172 @@ +/***************************************************************************/ +/* */ +/* ftpfr.h */ +/* */ +/* FreeType API for accessing PFR-specific data (specification only). */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTPFR_H__ +#define __FTPFR_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* pfr_fonts */ + /* */ + /* <Title> */ + /* PFR Fonts */ + /* */ + /* <Abstract> */ + /* PFR/TrueDoc specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of PFR-specific functions. */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @function: + * FT_Get_PFR_Metrics + * + * @description: + * Return the outline and metrics resolutions of a given PFR face. + * + * @input: + * face :: Handle to the input face. It can be a non-PFR face. + * + * @output: + * aoutline_resolution :: + * Outline resolution. This is equivalent to `face->units_per_EM' + * for non-PFR fonts. Optional (parameter can be NULL). + * + * ametrics_resolution :: + * Metrics resolution. This is equivalent to `outline_resolution' + * for non-PFR fonts. Optional (parameter can be NULL). + * + * ametrics_x_scale :: + * A 16.16 fixed-point number used to scale distance expressed + * in metrics units to device sub-pixels. This is equivalent to + * `face->size->x_scale', but for metrics only. Optional (parameter + * can be NULL). + * + * ametrics_y_scale :: + * Same as `ametrics_x_scale' but for the vertical direction. + * optional (parameter can be NULL). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If the input face is not a PFR, this function will return an error. + * However, in all cases, it will return valid values. + */ + FT_EXPORT( FT_Error ) + FT_Get_PFR_Metrics( FT_Face face, + FT_UInt *aoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ); + + + /********************************************************************** + * + * @function: + * FT_Get_PFR_Kerning + * + * @description: + * Return the kerning pair corresponding to two glyphs in a PFR face. + * The distance is expressed in metrics units, unlike the result of + * @FT_Get_Kerning. + * + * @input: + * face :: A handle to the input face. + * + * left :: Index of the left glyph. + * + * right :: Index of the right glyph. + * + * @output: + * avector :: A kerning vector. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function always return distances in original PFR metrics + * units. This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED + * mode, which always returns distances converted to outline units. + * + * You can use the value of the `x_scale' and `y_scale' parameters + * returned by @FT_Get_PFR_Metrics to scale these to device sub-pixels. + */ + FT_EXPORT( FT_Error ) + FT_Get_PFR_Kerning( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ); + + + /********************************************************************** + * + * @function: + * FT_Get_PFR_Advance + * + * @description: + * Return a given glyph advance, expressed in original metrics units, + * from a PFR font. + * + * @input: + * face :: A handle to the input face. + * + * gindex :: The glyph index. + * + * @output: + * aadvance :: The glyph advance in metrics units. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You can use the `x_scale' or `y_scale' results of @FT_Get_PFR_Metrics + * to convert the advance to device sub-pixels (i.e., 1/64th of pixels). + */ + FT_EXPORT( FT_Error ) + FT_Get_PFR_Advance( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTPFR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftrender.h b/uppsrc/plugin/FT_fontsys/ftrender.h new file mode 100644 index 000000000..8f8d8179c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftrender.h @@ -0,0 +1,238 @@ +/***************************************************************************/ +/* */ +/* ftrender.h */ +/* */ +/* FreeType renderer modules public interface (specification). */ +/* */ +/* Copyright 1996-2001, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTRENDER_H__ +#define __FTRENDER_H__ + + +#include "ft2build.h" +#include FT_MODULE_H +#include FT_GLYPH_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* module_management */ + /* */ + /*************************************************************************/ + + + /* create a new glyph object */ + typedef FT_Error + (*FT_Glyph_InitFunc)( FT_Glyph glyph, + FT_GlyphSlot slot ); + + /* destroys a given glyph object */ + typedef void + (*FT_Glyph_DoneFunc)( FT_Glyph glyph ); + + typedef void + (*FT_Glyph_TransformFunc)( FT_Glyph glyph, + const FT_Matrix* matrix, + const FT_Vector* delta ); + + typedef void + (*FT_Glyph_GetBBoxFunc)( FT_Glyph glyph, + FT_BBox* abbox ); + + typedef FT_Error + (*FT_Glyph_CopyFunc)( FT_Glyph source, + FT_Glyph target ); + + typedef FT_Error + (*FT_Glyph_PrepareFunc)( FT_Glyph glyph, + FT_GlyphSlot slot ); + +/* deprecated */ +#define FT_Glyph_Init_Func FT_Glyph_InitFunc +#define FT_Glyph_Done_Func FT_Glyph_DoneFunc +#define FT_Glyph_Transform_Func FT_Glyph_TransformFunc +#define FT_Glyph_BBox_Func FT_Glyph_GetBBoxFunc +#define FT_Glyph_Copy_Func FT_Glyph_CopyFunc +#define FT_Glyph_Prepare_Func FT_Glyph_PrepareFunc + + + struct FT_Glyph_Class_ + { + FT_Long glyph_size; + FT_Glyph_Format glyph_format; + FT_Glyph_InitFunc glyph_init; + FT_Glyph_DoneFunc glyph_done; + FT_Glyph_CopyFunc glyph_copy; + FT_Glyph_TransformFunc glyph_transform; + FT_Glyph_GetBBoxFunc glyph_bbox; + FT_Glyph_PrepareFunc glyph_prepare; + }; + + + typedef FT_Error + (*FT_Renderer_RenderFunc)( FT_Renderer renderer, + FT_GlyphSlot slot, + FT_UInt mode, + const FT_Vector* origin ); + + typedef FT_Error + (*FT_Renderer_TransformFunc)( FT_Renderer renderer, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ); + + + typedef void + (*FT_Renderer_GetCBoxFunc)( FT_Renderer renderer, + FT_GlyphSlot slot, + FT_BBox* cbox ); + + + typedef FT_Error + (*FT_Renderer_SetModeFunc)( FT_Renderer renderer, + FT_ULong mode_tag, + FT_Pointer mode_ptr ); + +/* deprecated identifiers */ +#define FTRenderer_render FT_Renderer_RenderFunc +#define FTRenderer_transform FT_Renderer_TransformFunc +#define FTRenderer_getCBox FT_Renderer_GetCBoxFunc +#define FTRenderer_setMode FT_Renderer_SetModeFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Renderer_Class */ + /* */ + /* <Description> */ + /* The renderer module class descriptor. */ + /* */ + /* <Fields> */ + /* root :: The root @FT_Module_Class fields. */ + /* */ + /* glyph_format :: The glyph image format this renderer handles. */ + /* */ + /* render_glyph :: A method used to render the image that is in a */ + /* given glyph slot into a bitmap. */ + /* */ + /* transform_glyph :: A method used to transform the image that is in */ + /* a given glyph slot. */ + /* */ + /* get_glyph_cbox :: A method used to access the glyph's cbox. */ + /* */ + /* set_mode :: A method used to pass additional parameters. */ + /* */ + /* raster_class :: For @FT_GLYPH_FORMAT_OUTLINE renderers only. */ + /* This is a pointer to its raster's class. */ + /* */ + typedef struct FT_Renderer_Class_ + { + FT_Module_Class root; + + FT_Glyph_Format glyph_format; + + FT_Renderer_RenderFunc render_glyph; + FT_Renderer_TransformFunc transform_glyph; + FT_Renderer_GetCBoxFunc get_glyph_cbox; + FT_Renderer_SetModeFunc set_mode; + + FT_Raster_Funcs* raster_class; + + } FT_Renderer_Class; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Renderer */ + /* */ + /* <Description> */ + /* Retrieve the current renderer for a given glyph format. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object. */ + /* */ + /* format :: The glyph format. */ + /* */ + /* <Return> */ + /* A renderer handle. 0~if none found. */ + /* */ + /* <Note> */ + /* An error will be returned if a module already exists by that name, */ + /* or if the module requires a version of FreeType that is too great. */ + /* */ + /* To add a new renderer, simply use @FT_Add_Module. To retrieve a */ + /* renderer by its name, use @FT_Get_Module. */ + /* */ + FT_EXPORT( FT_Renderer ) + FT_Get_Renderer( FT_Library library, + FT_Glyph_Format format ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Renderer */ + /* */ + /* <Description> */ + /* Set the current renderer to use, and set additional mode. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library object. */ + /* */ + /* <Input> */ + /* renderer :: A handle to the renderer object. */ + /* */ + /* num_params :: The number of additional parameters. */ + /* */ + /* parameters :: Additional parameters. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* In case of success, the renderer will be used to convert glyph */ + /* images in the renderer's known format into bitmaps. */ + /* */ + /* This doesn't change the current renderer for other formats. */ + /* */ + /* Currently, only the B/W renderer, if compiled with */ + /* FT_RASTER_OPTION_ANTI_ALIASING (providing a 5-levels */ + /* anti-aliasing mode; this option must be set directly in */ + /* `ftraster.c' and is undefined by default) accepts a single tag */ + /* `pal5' to set its gray palette as a character string with */ + /* 5~elements. Consequently, the third and fourth argument are zero */ + /* normally. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Renderer( FT_Library library, + FT_Renderer renderer, + FT_UInt num_params, + FT_Parameter* parameters ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTRENDER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftsizes.h b/uppsrc/plugin/FT_fontsys/ftsizes.h new file mode 100644 index 000000000..14dd14ddf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftsizes.h @@ -0,0 +1,159 @@ +/***************************************************************************/ +/* */ +/* ftsizes.h */ +/* */ +/* FreeType size objects management (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Typical application would normally not need to use these functions. */ + /* However, they have been placed in a public API for the rare cases */ + /* where they are needed. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTSIZES_H__ +#define __FTSIZES_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* sizes_management */ + /* */ + /* <Title> */ + /* Size Management */ + /* */ + /* <Abstract> */ + /* Managing multiple sizes per face. */ + /* */ + /* <Description> */ + /* When creating a new face object (e.g., with @FT_New_Face), an */ + /* @FT_Size object is automatically created and used to store all */ + /* pixel-size dependent information, available in the `face->size' */ + /* field. */ + /* */ + /* It is however possible to create more sizes for a given face, */ + /* mostly in order to manage several character pixel sizes of the */ + /* same font family and style. See @FT_New_Size and @FT_Done_Size. */ + /* */ + /* Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only */ + /* modify the contents of the current `active' size; you thus need */ + /* to use @FT_Activate_Size to change it. */ + /* */ + /* 99% of applications won't need the functions provided here, */ + /* especially if they use the caching sub-system, so be cautious */ + /* when using these. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Size */ + /* */ + /* <Description> */ + /* Create a new size object from a given face object. */ + /* */ + /* <Input> */ + /* face :: A handle to a parent face object. */ + /* */ + /* <Output> */ + /* asize :: A handle to a new size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* You need to call @FT_Activate_Size in order to select the new size */ + /* for upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size, */ + /* @FT_Load_Glyph, @FT_Load_Char, etc. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Size( FT_Face face, + FT_Size* size ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Size */ + /* */ + /* <Description> */ + /* Discard a given size object. Note that @FT_Done_Face */ + /* automatically discards all size objects allocated with */ + /* @FT_New_Size. */ + /* */ + /* <Input> */ + /* size :: A handle to a target size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_Size( FT_Size size ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Activate_Size */ + /* */ + /* <Description> */ + /* Even though it is possible to create several size objects for a */ + /* given face (see @FT_New_Size for details), functions like */ + /* @FT_Load_Glyph or @FT_Load_Char only use the one which has been */ + /* activated last to determine the `current character pixel size'. */ + /* */ + /* This function can be used to `activate' a previously created size */ + /* object. */ + /* */ + /* <Input> */ + /* size :: A handle to a target size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If `face' is the size's parent face object, this function changes */ + /* the value of `face->size' to the input size handle. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Activate_Size( FT_Size size ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTSIZES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftsnames.h b/uppsrc/plugin/FT_fontsys/ftsnames.h new file mode 100644 index 000000000..f1f33c2b5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftsnames.h @@ -0,0 +1,200 @@ +/***************************************************************************/ +/* */ +/* ftsnames.h */ +/* */ +/* Simple interface to access SFNT name tables (which are used */ +/* to hold font names, copyright info, notices, etc.) (specification). */ +/* */ +/* This is _not_ used to retrieve glyph names! */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FT_SFNT_NAMES_H__ +#define __FT_SFNT_NAMES_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* sfnt_names */ + /* */ + /* <Title> */ + /* SFNT Names */ + /* */ + /* <Abstract> */ + /* Access the names embedded in TrueType and OpenType files. */ + /* */ + /* <Description> */ + /* The TrueType and OpenType specifications allow the inclusion of */ + /* a special `names table' in font files. This table contains */ + /* textual (and internationalized) information regarding the font, */ + /* like family name, copyright, version, etc. */ + /* */ + /* The definitions below are used to access them if available. */ + /* */ + /* Note that this has nothing to do with glyph names! */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_SfntName */ + /* */ + /* <Description> */ + /* A structure used to model an SFNT `name' table entry. */ + /* */ + /* <Fields> */ + /* platform_id :: The platform ID for `string'. */ + /* */ + /* encoding_id :: The encoding ID for `string'. */ + /* */ + /* language_id :: The language ID for `string'. */ + /* */ + /* name_id :: An identifier for `string'. */ + /* */ + /* string :: The `name' string. Note that its format differs */ + /* depending on the (platform,encoding) pair. It can */ + /* be a Pascal String, a UTF-16 one, etc. */ + /* */ + /* Generally speaking, the string is not */ + /* zero-terminated. Please refer to the TrueType */ + /* specification for details. */ + /* */ + /* string_len :: The length of `string' in bytes. */ + /* */ + /* <Note> */ + /* Possible values for `platform_id', `encoding_id', `language_id', */ + /* and `name_id' are given in the file `ttnameid.h'. For details */ + /* please refer to the TrueType or OpenType specification. */ + /* */ + /* See also @TT_PLATFORM_XXX, @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX, */ + /* @TT_ISO_ID_XXX, and @TT_MS_ID_XXX. */ + /* */ + typedef struct FT_SfntName_ + { + FT_UShort platform_id; + FT_UShort encoding_id; + FT_UShort language_id; + FT_UShort name_id; + + FT_Byte* string; /* this string is *not* null-terminated! */ + FT_UInt string_len; /* in bytes */ + + } FT_SfntName; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Sfnt_Name_Count */ + /* */ + /* <Description> */ + /* Retrieve the number of name strings in the SFNT `name' table. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* <Return> */ + /* The number of strings in the `name' table. */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Get_Sfnt_Name_Count( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Sfnt_Name */ + /* */ + /* <Description> */ + /* Retrieve a string of the SFNT `name' table for a given index. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* idx :: The index of the `name' string. */ + /* */ + /* <Output> */ + /* aname :: The indexed @FT_SfntName structure. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `string' array returned in the `aname' structure is not */ + /* null-terminated. The application should deallocate it if it is no */ + /* longer in use. */ + /* */ + /* Use @FT_Get_Sfnt_Name_Count to get the total number of available */ + /* `name' table entries, then do a loop until you get the right */ + /* platform, encoding, and name ID. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Sfnt_Name( FT_Face face, + FT_UInt idx, + FT_SfntName *aname ); + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY + * + * @description: + * A constant used as the tag of @FT_Parameter structures to make + * FT_Open_Face() ignore preferred family subfamily names in `name' + * table since OpenType version 1.4. For backwards compatibility with + * legacy systems which has 4-face-per-family restriction. + * + */ +#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY FT_MAKE_TAG( 'i', 'g', 'p', 'f' ) + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY + * + * @description: + * A constant used as the tag of @FT_Parameter structures to make + * FT_Open_Face() ignore preferred subfamily names in `name' table since + * OpenType version 1.4. For backwards compatibility with legacy + * systems which has 4-face-per-family restriction. + * + */ +#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY FT_MAKE_TAG( 'i', 'g', 'p', 's' ) + + /* */ + + +FT_END_HEADER + +#endif /* __FT_SFNT_NAMES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftstroke.h b/uppsrc/plugin/FT_fontsys/ftstroke.h new file mode 100644 index 000000000..5c8bbfc12 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftstroke.h @@ -0,0 +1,741 @@ +/***************************************************************************/ +/* */ +/* ftstroke.h */ +/* */ +/* FreeType path stroker (specification). */ +/* */ +/* Copyright 2002-2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FT_STROKE_H__ +#define __FT_STROKE_H__ + +#include "ft2build.h" +#include FT_OUTLINE_H +#include FT_GLYPH_H + + +FT_BEGIN_HEADER + + + /************************************************************************ + * + * @section: + * glyph_stroker + * + * @title: + * Glyph Stroker + * + * @abstract: + * Generating bordered and stroked glyphs. + * + * @description: + * This component generates stroked outlines of a given vectorial + * glyph. It also allows you to retrieve the `outside' and/or the + * `inside' borders of the stroke. + * + * This can be useful to generate `bordered' glyph, i.e., glyphs + * displayed with a coloured (and anti-aliased) border around their + * shape. + */ + + + /************************************************************** + * + * @type: + * FT_Stroker + * + * @description: + * Opaque handler to a path stroker object. + */ + typedef struct FT_StrokerRec_* FT_Stroker; + + + /************************************************************** + * + * @enum: + * FT_Stroker_LineJoin + * + * @description: + * These values determine how two joining lines are rendered + * in a stroker. + * + * @values: + * FT_STROKER_LINEJOIN_ROUND :: + * Used to render rounded line joins. Circular arcs are used + * to join two lines smoothly. + * + * FT_STROKER_LINEJOIN_BEVEL :: + * Used to render beveled line joins. The outer corner of + * the joined lines is filled by enclosing the triangular + * region of the corner with a straight line between the + * outer corners of each stroke. + * + * FT_STROKER_LINEJOIN_MITER_FIXED :: + * Used to render mitered line joins, with fixed bevels if the + * miter limit is exceeded. The outer edges of the strokes + * for the two segments are extended until they meet at an + * angle. If the segments meet at too sharp an angle (such + * that the miter would extend from the intersection of the + * segments a distance greater than the product of the miter + * limit value and the border radius), then a bevel join (see + * above) is used instead. This prevents long spikes being + * created. FT_STROKER_LINEJOIN_MITER_FIXED generates a miter + * line join as used in PostScript and PDF. + * + * FT_STROKER_LINEJOIN_MITER_VARIABLE :: + * FT_STROKER_LINEJOIN_MITER :: + * Used to render mitered line joins, with variable bevels if + * the miter limit is exceeded. The intersection of the + * strokes is clipped at a line perpendicular to the bisector + * of the angle between the strokes, at the distance from the + * intersection of the segments equal to the product of the + * miter limit value and the border radius. This prevents + * long spikes being created. + * FT_STROKER_LINEJOIN_MITER_VARIABLE generates a mitered line + * join as used in XPS. FT_STROKER_LINEJOIN_MITER is an alias + * for FT_STROKER_LINEJOIN_MITER_VARIABLE, retained for + * backwards compatibility. + */ + typedef enum FT_Stroker_LineJoin_ + { + FT_STROKER_LINEJOIN_ROUND = 0, + FT_STROKER_LINEJOIN_BEVEL = 1, + FT_STROKER_LINEJOIN_MITER_VARIABLE = 2, + FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE, + FT_STROKER_LINEJOIN_MITER_FIXED = 3 + + } FT_Stroker_LineJoin; + + + /************************************************************** + * + * @enum: + * FT_Stroker_LineCap + * + * @description: + * These values determine how the end of opened sub-paths are + * rendered in a stroke. + * + * @values: + * FT_STROKER_LINECAP_BUTT :: + * The end of lines is rendered as a full stop on the last + * point itself. + * + * FT_STROKER_LINECAP_ROUND :: + * The end of lines is rendered as a half-circle around the + * last point. + * + * FT_STROKER_LINECAP_SQUARE :: + * The end of lines is rendered as a square around the + * last point. + */ + typedef enum FT_Stroker_LineCap_ + { + FT_STROKER_LINECAP_BUTT = 0, + FT_STROKER_LINECAP_ROUND, + FT_STROKER_LINECAP_SQUARE + + } FT_Stroker_LineCap; + + + /************************************************************** + * + * @enum: + * FT_StrokerBorder + * + * @description: + * These values are used to select a given stroke border + * in @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder. + * + * @values: + * FT_STROKER_BORDER_LEFT :: + * Select the left border, relative to the drawing direction. + * + * FT_STROKER_BORDER_RIGHT :: + * Select the right border, relative to the drawing direction. + * + * @note: + * Applications are generally interested in the `inside' and `outside' + * borders. However, there is no direct mapping between these and the + * `left' and `right' ones, since this really depends on the glyph's + * drawing orientation, which varies between font formats. + * + * You can however use @FT_Outline_GetInsideBorder and + * @FT_Outline_GetOutsideBorder to get these. + */ + typedef enum FT_StrokerBorder_ + { + FT_STROKER_BORDER_LEFT = 0, + FT_STROKER_BORDER_RIGHT + + } FT_StrokerBorder; + + + /************************************************************** + * + * @function: + * FT_Outline_GetInsideBorder + * + * @description: + * Retrieve the @FT_StrokerBorder value corresponding to the + * `inside' borders of a given outline. + * + * @input: + * outline :: + * The source outline handle. + * + * @return: + * The border index. @FT_STROKER_BORDER_RIGHT for empty or invalid + * outlines. + */ + FT_EXPORT( FT_StrokerBorder ) + FT_Outline_GetInsideBorder( FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Outline_GetOutsideBorder + * + * @description: + * Retrieve the @FT_StrokerBorder value corresponding to the + * `outside' borders of a given outline. + * + * @input: + * outline :: + * The source outline handle. + * + * @return: + * The border index. @FT_STROKER_BORDER_LEFT for empty or invalid + * outlines. + */ + FT_EXPORT( FT_StrokerBorder ) + FT_Outline_GetOutsideBorder( FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Stroker_New + * + * @description: + * Create a new stroker object. + * + * @input: + * library :: + * FreeType library handle. + * + * @output: + * astroker :: + * A new stroker object handle. NULL in case of error. + * + * @return: + * FreeType error code. 0~means success. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_New( FT_Library library, + FT_Stroker *astroker ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Set + * + * @description: + * Reset a stroker object's attributes. + * + * @input: + * stroker :: + * The target stroker handle. + * + * radius :: + * The border radius. + * + * line_cap :: + * The line cap style. + * + * line_join :: + * The line join style. + * + * miter_limit :: + * The miter limit for the FT_STROKER_LINEJOIN_MITER_FIXED and + * FT_STROKER_LINEJOIN_MITER_VARIABLE line join styles, + * expressed as 16.16 fixed point value. + * + * @note: + * The radius is expressed in the same units as the outline + * coordinates. + */ + FT_EXPORT( void ) + FT_Stroker_Set( FT_Stroker stroker, + FT_Fixed radius, + FT_Stroker_LineCap line_cap, + FT_Stroker_LineJoin line_join, + FT_Fixed miter_limit ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Rewind + * + * @description: + * Reset a stroker object without changing its attributes. + * You should call this function before beginning a new + * series of calls to @FT_Stroker_BeginSubPath or + * @FT_Stroker_EndSubPath. + * + * @input: + * stroker :: + * The target stroker handle. + */ + FT_EXPORT( void ) + FT_Stroker_Rewind( FT_Stroker stroker ); + + + /************************************************************** + * + * @function: + * FT_Stroker_ParseOutline + * + * @description: + * A convenience function used to parse a whole outline with + * the stroker. The resulting outline(s) can be retrieved + * later by functions like @FT_Stroker_GetCounts and @FT_Stroker_Export. + * + * @input: + * stroker :: + * The target stroker handle. + * + * outline :: + * The source outline. + * + * opened :: + * A boolean. If~1, the outline is treated as an open path instead + * of a closed one. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If `opened' is~0 (the default), the outline is treated as a closed + * path, and the stroker generates two distinct `border' outlines. + * + * If `opened' is~1, the outline is processed as an open path, and the + * stroker generates a single `stroke' outline. + * + * This function calls @FT_Stroker_Rewind automatically. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_ParseOutline( FT_Stroker stroker, + FT_Outline* outline, + FT_Bool opened ); + + + /************************************************************** + * + * @function: + * FT_Stroker_BeginSubPath + * + * @description: + * Start a new sub-path in the stroker. + * + * @input: + * stroker :: + * The target stroker handle. + * + * to :: + * A pointer to the start vector. + * + * open :: + * A boolean. If~1, the sub-path is treated as an open one. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function is useful when you need to stroke a path that is + * not stored as an @FT_Outline object. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_BeginSubPath( FT_Stroker stroker, + FT_Vector* to, + FT_Bool open ); + + + /************************************************************** + * + * @function: + * FT_Stroker_EndSubPath + * + * @description: + * Close the current sub-path in the stroker. + * + * @input: + * stroker :: + * The target stroker handle. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function after @FT_Stroker_BeginSubPath. + * If the subpath was not `opened', this function `draws' a + * single line segment to the start position when needed. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_EndSubPath( FT_Stroker stroker ); + + + /************************************************************** + * + * @function: + * FT_Stroker_LineTo + * + * @description: + * `Draw' a single line segment in the stroker's current sub-path, + * from the last position. + * + * @input: + * stroker :: + * The target stroker handle. + * + * to :: + * A pointer to the destination point. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function between @FT_Stroker_BeginSubPath and + * @FT_Stroker_EndSubPath. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_LineTo( FT_Stroker stroker, + FT_Vector* to ); + + + /************************************************************** + * + * @function: + * FT_Stroker_ConicTo + * + * @description: + * `Draw' a single quadratic Bézier in the stroker's current sub-path, + * from the last position. + * + * @input: + * stroker :: + * The target stroker handle. + * + * control :: + * A pointer to a Bézier control point. + * + * to :: + * A pointer to the destination point. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function between @FT_Stroker_BeginSubPath and + * @FT_Stroker_EndSubPath. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_ConicTo( FT_Stroker stroker, + FT_Vector* control, + FT_Vector* to ); + + + /************************************************************** + * + * @function: + * FT_Stroker_CubicTo + * + * @description: + * `Draw' a single cubic Bézier in the stroker's current sub-path, + * from the last position. + * + * @input: + * stroker :: + * The target stroker handle. + * + * control1 :: + * A pointer to the first Bézier control point. + * + * control2 :: + * A pointer to second Bézier control point. + * + * to :: + * A pointer to the destination point. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function between @FT_Stroker_BeginSubPath and + * @FT_Stroker_EndSubPath. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_CubicTo( FT_Stroker stroker, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ); + + + /************************************************************** + * + * @function: + * FT_Stroker_GetBorderCounts + * + * @description: + * Call this function once you have finished parsing your paths + * with the stroker. It returns the number of points and + * contours necessary to export one of the `border' or `stroke' + * outlines generated by the stroker. + * + * @input: + * stroker :: + * The target stroker handle. + * + * border :: + * The border index. + * + * @output: + * anum_points :: + * The number of points. + * + * anum_contours :: + * The number of contours. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * When an outline, or a sub-path, is `closed', the stroker generates + * two independent `border' outlines, named `left' and `right'. + * + * When the outline, or a sub-path, is `opened', the stroker merges + * the `border' outlines with caps. The `left' border receives all + * points, while the `right' border becomes empty. + * + * Use the function @FT_Stroker_GetCounts instead if you want to + * retrieve the counts associated to both borders. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_GetBorderCounts( FT_Stroker stroker, + FT_StrokerBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ); + + + /************************************************************** + * + * @function: + * FT_Stroker_ExportBorder + * + * @description: + * Call this function after @FT_Stroker_GetBorderCounts to + * export the corresponding border to your own @FT_Outline + * structure. + * + * Note that this function appends the border points and + * contours to your outline, but does not try to resize its + * arrays. + * + * @input: + * stroker :: + * The target stroker handle. + * + * border :: + * The border index. + * + * outline :: + * The target outline handle. + * + * @note: + * Always call this function after @FT_Stroker_GetBorderCounts to + * get sure that there is enough room in your @FT_Outline object to + * receive all new data. + * + * When an outline, or a sub-path, is `closed', the stroker generates + * two independent `border' outlines, named `left' and `right' + * + * When the outline, or a sub-path, is `opened', the stroker merges + * the `border' outlines with caps. The `left' border receives all + * points, while the `right' border becomes empty. + * + * Use the function @FT_Stroker_Export instead if you want to + * retrieve all borders at once. + */ + FT_EXPORT( void ) + FT_Stroker_ExportBorder( FT_Stroker stroker, + FT_StrokerBorder border, + FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Stroker_GetCounts + * + * @description: + * Call this function once you have finished parsing your paths + * with the stroker. It returns the number of points and + * contours necessary to export all points/borders from the stroked + * outline/path. + * + * @input: + * stroker :: + * The target stroker handle. + * + * @output: + * anum_points :: + * The number of points. + * + * anum_contours :: + * The number of contours. + * + * @return: + * FreeType error code. 0~means success. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_GetCounts( FT_Stroker stroker, + FT_UInt *anum_points, + FT_UInt *anum_contours ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Export + * + * @description: + * Call this function after @FT_Stroker_GetBorderCounts to + * export all borders to your own @FT_Outline structure. + * + * Note that this function appends the border points and + * contours to your outline, but does not try to resize its + * arrays. + * + * @input: + * stroker :: + * The target stroker handle. + * + * outline :: + * The target outline handle. + */ + FT_EXPORT( void ) + FT_Stroker_Export( FT_Stroker stroker, + FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Done + * + * @description: + * Destroy a stroker object. + * + * @input: + * stroker :: + * A stroker handle. Can be NULL. + */ + FT_EXPORT( void ) + FT_Stroker_Done( FT_Stroker stroker ); + + + /************************************************************** + * + * @function: + * FT_Glyph_Stroke + * + * @description: + * Stroke a given outline glyph object with a given stroker. + * + * @inout: + * pglyph :: + * Source glyph handle on input, new glyph handle on output. + * + * @input: + * stroker :: + * A stroker handle. + * + * destroy :: + * A Boolean. If~1, the source glyph object is destroyed + * on success. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source glyph is untouched in case of error. + */ + FT_EXPORT( FT_Error ) + FT_Glyph_Stroke( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool destroy ); + + + /************************************************************** + * + * @function: + * FT_Glyph_StrokeBorder + * + * @description: + * Stroke a given outline glyph object with a given stroker, but + * only return either its inside or outside border. + * + * @inout: + * pglyph :: + * Source glyph handle on input, new glyph handle on output. + * + * @input: + * stroker :: + * A stroker handle. + * + * inside :: + * A Boolean. If~1, return the inside border, otherwise + * the outside border. + * + * destroy :: + * A Boolean. If~1, the source glyph object is destroyed + * on success. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source glyph is untouched in case of error. + */ + FT_EXPORT( FT_Error ) + FT_Glyph_StrokeBorder( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool inside, + FT_Bool destroy ); + + /* */ + +FT_END_HEADER + +#endif /* __FT_STROKE_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/ftsynth.h b/uppsrc/plugin/FT_fontsys/ftsynth.h new file mode 100644 index 000000000..9e95cc8a4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftsynth.h @@ -0,0 +1,80 @@ +/***************************************************************************/ +/* */ +/* ftsynth.h */ +/* */ +/* FreeType synthesizing code for emboldening and slanting */ +/* (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********* *********/ + /********* WARNING, THIS IS ALPHA CODE! THIS API *********/ + /********* IS DUE TO CHANGE UNTIL STRICTLY NOTIFIED BY THE *********/ + /********* FREETYPE DEVELOPMENT TEAM *********/ + /********* *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Main reason for not lifting the functions in this module to a */ + /* `standard' API is that the used parameters for emboldening and */ + /* slanting are not configurable. Consider the functions as a */ + /* code resource which should be copied into the application and */ + /* adapted to the particular needs. */ + + +#ifndef __FTSYNTH_H__ +#define __FTSYNTH_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /* Embolden a glyph by a `reasonable' value (which is highly a matter of */ + /* taste). This function is actually a convenience function, providing */ + /* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden. */ + /* */ + /* For emboldened outlines the metrics are estimates only; if you need */ + /* precise values you should call @FT_Outline_Get_CBox. */ + FT_EXPORT( void ) + FT_GlyphSlot_Embolden( FT_GlyphSlot slot ); + + /* Slant an outline glyph to the right by about 12 degrees. */ + FT_EXPORT( void ) + FT_GlyphSlot_Oblique( FT_GlyphSlot slot ); + + /* */ + +FT_END_HEADER + +#endif /* __FTSYNTH_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftsystem.h b/uppsrc/plugin/FT_fontsys/ftsystem.h new file mode 100644 index 000000000..d60b1c04b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftsystem.h @@ -0,0 +1,347 @@ +/***************************************************************************/ +/* */ +/* ftsystem.h */ +/* */ +/* FreeType low-level system interface definition (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSYSTEM_H__ +#define __FTSYSTEM_H__ + + +#include "ft2build.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* system_interface */ + /* */ + /* <Title> */ + /* System Interface */ + /* */ + /* <Abstract> */ + /* How FreeType manages memory and i/o. */ + /* */ + /* <Description> */ + /* This section contains various definitions related to memory */ + /* management and i/o access. You need to understand this */ + /* information if you want to use a custom memory manager or you own */ + /* i/o streams. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* M E M O R Y M A N A G E M E N T */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * FT_Memory + * + * @description: + * A handle to a given memory manager object, defined with an + * @FT_MemoryRec structure. + * + */ + typedef struct FT_MemoryRec_* FT_Memory; + + + /************************************************************************* + * + * @functype: + * FT_Alloc_Func + * + * @description: + * A function used to allocate `size' bytes from `memory'. + * + * @input: + * memory :: + * A handle to the source memory manager. + * + * size :: + * The size in bytes to allocate. + * + * @return: + * Address of new memory block. 0~in case of failure. + * + */ + typedef void* + (*FT_Alloc_Func)( FT_Memory memory, + long size ); + + + /************************************************************************* + * + * @functype: + * FT_Free_Func + * + * @description: + * A function used to release a given block of memory. + * + * @input: + * memory :: + * A handle to the source memory manager. + * + * block :: + * The address of the target memory block. + * + */ + typedef void + (*FT_Free_Func)( FT_Memory memory, + void* block ); + + + /************************************************************************* + * + * @functype: + * FT_Realloc_Func + * + * @description: + * A function used to re-allocate a given block of memory. + * + * @input: + * memory :: + * A handle to the source memory manager. + * + * cur_size :: + * The block's current size in bytes. + * + * new_size :: + * The block's requested new size. + * + * block :: + * The block's current address. + * + * @return: + * New block address. 0~in case of memory shortage. + * + * @note: + * In case of error, the old block must still be available. + * + */ + typedef void* + (*FT_Realloc_Func)( FT_Memory memory, + long cur_size, + long new_size, + void* block ); + + + /************************************************************************* + * + * @struct: + * FT_MemoryRec + * + * @description: + * A structure used to describe a given memory manager to FreeType~2. + * + * @fields: + * user :: + * A generic typeless pointer for user data. + * + * alloc :: + * A pointer type to an allocation function. + * + * free :: + * A pointer type to an memory freeing function. + * + * realloc :: + * A pointer type to a reallocation function. + * + */ + struct FT_MemoryRec_ + { + void* user; + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + }; + + + /*************************************************************************/ + /* */ + /* I / O M A N A G E M E N T */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * FT_Stream + * + * @description: + * A handle to an input stream. + * + */ + typedef struct FT_StreamRec_* FT_Stream; + + + /************************************************************************* + * + * @struct: + * FT_StreamDesc + * + * @description: + * A union type used to store either a long or a pointer. This is used + * to store a file descriptor or a `FILE*' in an input stream. + * + */ + typedef union FT_StreamDesc_ + { + long value; + void* pointer; + + } FT_StreamDesc; + + + /************************************************************************* + * + * @functype: + * FT_Stream_IoFunc + * + * @description: + * A function used to seek and read data from a given input stream. + * + * @input: + * stream :: + * A handle to the source stream. + * + * offset :: + * The offset of read in stream (always from start). + * + * buffer :: + * The address of the read buffer. + * + * count :: + * The number of bytes to read from the stream. + * + * @return: + * The number of bytes effectively read by the stream. + * + * @note: + * This function might be called to perform a seek or skip operation + * with a `count' of~0. A non-zero return value then indicates an + * error. + * + */ + typedef unsigned long + (*FT_Stream_IoFunc)( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ); + + + /************************************************************************* + * + * @functype: + * FT_Stream_CloseFunc + * + * @description: + * A function used to close a given input stream. + * + * @input: + * stream :: + * A handle to the target stream. + * + */ + typedef void + (*FT_Stream_CloseFunc)( FT_Stream stream ); + + + /************************************************************************* + * + * @struct: + * FT_StreamRec + * + * @description: + * A structure used to describe an input stream. + * + * @input: + * base :: + * For memory-based streams, this is the address of the first stream + * byte in memory. This field should always be set to NULL for + * disk-based streams. + * + * size :: + * The stream size in bytes. + * + * pos :: + * The current position within the stream. + * + * descriptor :: + * This field is a union that can hold an integer or a pointer. It is + * used by stream implementations to store file descriptors or `FILE*' + * pointers. + * + * pathname :: + * This field is completely ignored by FreeType. However, it is often + * useful during debugging to use it to store the stream's filename + * (where available). + * + * read :: + * The stream's input function. + * + * close :: + * The stream's close function. + * + * memory :: + * The memory manager to use to preload frames. This is set + * internally by FreeType and shouldn't be touched by stream + * implementations. + * + * cursor :: + * This field is set and used internally by FreeType when parsing + * frames. + * + * limit :: + * This field is set and used internally by FreeType when parsing + * frames. + * + */ + typedef struct FT_StreamRec_ + { + unsigned char* base; + unsigned long size; + unsigned long pos; + + FT_StreamDesc descriptor; + FT_StreamDesc pathname; + FT_Stream_IoFunc read; + FT_Stream_CloseFunc close; + + FT_Memory memory; + unsigned char* cursor; + unsigned char* limit; + + } FT_StreamRec; + + + /* */ + + +FT_END_HEADER + +#endif /* __FTSYSTEM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/fttrigon.h b/uppsrc/plugin/FT_fontsys/fttrigon.h new file mode 100644 index 000000000..6b77d2ee5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/fttrigon.h @@ -0,0 +1,350 @@ +/***************************************************************************/ +/* */ +/* fttrigon.h */ +/* */ +/* FreeType trigonometric functions (specification). */ +/* */ +/* Copyright 2001, 2003, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTTRIGON_H__ +#define __FTTRIGON_H__ + +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * FT_Angle + * + * @description: + * This type is used to model angle values in FreeType. Note that the + * angle is a 16.16 fixed float value expressed in degrees. + * + */ + typedef FT_Fixed FT_Angle; + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_PI + * + * @description: + * The angle pi expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_PI ( 180L << 16 ) + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_2PI + * + * @description: + * The angle 2*pi expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 ) + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_PI2 + * + * @description: + * The angle pi/2 expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 ) + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_PI4 + * + * @description: + * The angle pi/4 expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 ) + + + /************************************************************************* + * + * @function: + * FT_Sin + * + * @description: + * Return the sinus of a given angle in fixed point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The sinus value. + * + * @note: + * If you need both the sinus and cosinus for a given angle, use the + * function @FT_Vector_Unit. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Sin( FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Cos + * + * @description: + * Return the cosinus of a given angle in fixed point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The cosinus value. + * + * @note: + * If you need both the sinus and cosinus for a given angle, use the + * function @FT_Vector_Unit. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Cos( FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Tan + * + * @description: + * Return the tangent of a given angle in fixed point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The tangent value. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Tan( FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Atan2 + * + * @description: + * Return the arc-tangent corresponding to a given vector (x,y) in + * the 2d plane. + * + * @input: + * x :: + * The horizontal vector coordinate. + * + * y :: + * The vertical vector coordinate. + * + * @return: + * The arc-tangent value (i.e. angle). + * + */ + FT_EXPORT( FT_Angle ) + FT_Atan2( FT_Fixed x, + FT_Fixed y ); + + + /************************************************************************* + * + * @function: + * FT_Angle_Diff + * + * @description: + * Return the difference between two angles. The result is always + * constrained to the ]-PI..PI] interval. + * + * @input: + * angle1 :: + * First angle. + * + * angle2 :: + * Second angle. + * + * @return: + * Constrained value of `value2-value1'. + * + */ + FT_EXPORT( FT_Angle ) + FT_Angle_Diff( FT_Angle angle1, + FT_Angle angle2 ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Unit + * + * @description: + * Return the unit vector corresponding to a given angle. After the + * call, the value of `vec.x' will be `sin(angle)', and the value of + * `vec.y' will be `cos(angle)'. + * + * This function is useful to retrieve both the sinus and cosinus of a + * given angle quickly. + * + * @output: + * vec :: + * The address of target vector. + * + * @input: + * angle :: + * The address of angle. + * + */ + FT_EXPORT( void ) + FT_Vector_Unit( FT_Vector* vec, + FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Rotate + * + * @description: + * Rotate a vector by a given angle. + * + * @inout: + * vec :: + * The address of target vector. + * + * @input: + * angle :: + * The address of angle. + * + */ + FT_EXPORT( void ) + FT_Vector_Rotate( FT_Vector* vec, + FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Length + * + * @description: + * Return the length of a given vector. + * + * @input: + * vec :: + * The address of target vector. + * + * @return: + * The vector length, expressed in the same units that the original + * vector coordinates. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Vector_Length( FT_Vector* vec ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Polarize + * + * @description: + * Compute both the length and angle of a given vector. + * + * @input: + * vec :: + * The address of source vector. + * + * @output: + * length :: + * The vector length. + * + * angle :: + * The vector angle. + * + */ + FT_EXPORT( void ) + FT_Vector_Polarize( FT_Vector* vec, + FT_Fixed *length, + FT_Angle *angle ); + + + /************************************************************************* + * + * @function: + * FT_Vector_From_Polar + * + * @description: + * Compute vector coordinates from a length and angle. + * + * @output: + * vec :: + * The address of source vector. + * + * @input: + * length :: + * The vector length. + * + * angle :: + * The vector angle. + * + */ + FT_EXPORT( void ) + FT_Vector_From_Polar( FT_Vector* vec, + FT_Fixed length, + FT_Angle angle ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTTRIGON_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/fttypes.h b/uppsrc/plugin/FT_fontsys/fttypes.h new file mode 100644 index 000000000..04e6d4cae --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/fttypes.h @@ -0,0 +1,588 @@ +/***************************************************************************/ +/* */ +/* fttypes.h */ +/* */ +/* FreeType simple types definitions (specification only). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTTYPES_H__ +#define __FTTYPES_H__ + + +#include "ft2build.h" +#include FT_CONFIG_CONFIG_H +#include FT_SYSTEM_H +#include FT_IMAGE_H + +#include <stddef.h> + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* basic_types */ + /* */ + /* <Title> */ + /* Basic Data Types */ + /* */ + /* <Abstract> */ + /* The basic data types defined by the library. */ + /* */ + /* <Description> */ + /* This section contains the basic data types defined by FreeType~2, */ + /* ranging from simple scalar types to bitmap descriptors. More */ + /* font-specific structures are defined in a different section. */ + /* */ + /* <Order> */ + /* FT_Byte */ + /* FT_Bytes */ + /* FT_Char */ + /* FT_Int */ + /* FT_UInt */ + /* FT_Int16 */ + /* FT_UInt16 */ + /* FT_Int32 */ + /* FT_UInt32 */ + /* FT_Short */ + /* FT_UShort */ + /* FT_Long */ + /* FT_ULong */ + /* FT_Bool */ + /* FT_Offset */ + /* FT_PtrDist */ + /* FT_String */ + /* FT_Tag */ + /* FT_Error */ + /* FT_Fixed */ + /* FT_Pointer */ + /* FT_Pos */ + /* FT_Vector */ + /* FT_BBox */ + /* FT_Matrix */ + /* FT_FWord */ + /* FT_UFWord */ + /* FT_F2Dot14 */ + /* FT_UnitVector */ + /* FT_F26Dot6 */ + /* */ + /* */ + /* FT_Generic */ + /* FT_Generic_Finalizer */ + /* */ + /* FT_Bitmap */ + /* FT_Pixel_Mode */ + /* FT_Palette_Mode */ + /* FT_Glyph_Format */ + /* FT_IMAGE_TAG */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Bool */ + /* */ + /* <Description> */ + /* A typedef of unsigned char, used for simple booleans. As usual, */ + /* values 1 and~0 represent true and false, respectively. */ + /* */ + typedef unsigned char FT_Bool; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_FWord */ + /* */ + /* <Description> */ + /* A signed 16-bit integer used to store a distance in original font */ + /* units. */ + /* */ + typedef signed short FT_FWord; /* distance in FUnits */ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UFWord */ + /* */ + /* <Description> */ + /* An unsigned 16-bit integer used to store a distance in original */ + /* font units. */ + /* */ + typedef unsigned short FT_UFWord; /* unsigned distance */ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Char */ + /* */ + /* <Description> */ + /* A simple typedef for the _signed_ char type. */ + /* */ + typedef signed char FT_Char; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Byte */ + /* */ + /* <Description> */ + /* A simple typedef for the _unsigned_ char type. */ + /* */ + typedef unsigned char FT_Byte; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Bytes */ + /* */ + /* <Description> */ + /* A typedef for constant memory areas. */ + /* */ + typedef const FT_Byte* FT_Bytes; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Tag */ + /* */ + /* <Description> */ + /* A typedef for 32-bit tags (as used in the SFNT format). */ + /* */ + typedef FT_UInt32 FT_Tag; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_String */ + /* */ + /* <Description> */ + /* A simple typedef for the char type, usually used for strings. */ + /* */ + typedef char FT_String; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Short */ + /* */ + /* <Description> */ + /* A typedef for signed short. */ + /* */ + typedef signed short FT_Short; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UShort */ + /* */ + /* <Description> */ + /* A typedef for unsigned short. */ + /* */ + typedef unsigned short FT_UShort; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Int */ + /* */ + /* <Description> */ + /* A typedef for the int type. */ + /* */ + typedef signed int FT_Int; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UInt */ + /* */ + /* <Description> */ + /* A typedef for the unsigned int type. */ + /* */ + typedef unsigned int FT_UInt; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Long */ + /* */ + /* <Description> */ + /* A typedef for signed long. */ + /* */ + typedef signed long FT_Long; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_ULong */ + /* */ + /* <Description> */ + /* A typedef for unsigned long. */ + /* */ + typedef unsigned long FT_ULong; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_F2Dot14 */ + /* */ + /* <Description> */ + /* A signed 2.14 fixed float type used for unit vectors. */ + /* */ + typedef signed short FT_F2Dot14; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_F26Dot6 */ + /* */ + /* <Description> */ + /* A signed 26.6 fixed float type used for vectorial pixel */ + /* coordinates. */ + /* */ + typedef signed long FT_F26Dot6; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Fixed */ + /* */ + /* <Description> */ + /* This type is used to store 16.16 fixed float values, like scaling */ + /* values or matrix coefficients. */ + /* */ + typedef signed long FT_Fixed; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Error */ + /* */ + /* <Description> */ + /* The FreeType error code type. A value of~0 is always interpreted */ + /* as a successful operation. */ + /* */ + typedef int FT_Error; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Pointer */ + /* */ + /* <Description> */ + /* A simple typedef for a typeless pointer. */ + /* */ + typedef void* FT_Pointer; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Offset */ + /* */ + /* <Description> */ + /* This is equivalent to the ANSI~C `size_t' type, i.e., the largest */ + /* _unsigned_ integer type used to express a file size or position, */ + /* or a memory block size. */ + /* */ + typedef size_t FT_Offset; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_PtrDist */ + /* */ + /* <Description> */ + /* This is equivalent to the ANSI~C `ptrdiff_t' type, i.e., the */ + /* largest _signed_ integer type used to express the distance */ + /* between two pointers. */ + /* */ + typedef ft_ptrdiff_t FT_PtrDist; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_UnitVector */ + /* */ + /* <Description> */ + /* A simple structure used to store a 2D vector unit vector. Uses */ + /* FT_F2Dot14 types. */ + /* */ + /* <Fields> */ + /* x :: Horizontal coordinate. */ + /* */ + /* y :: Vertical coordinate. */ + /* */ + typedef struct FT_UnitVector_ + { + FT_F2Dot14 x; + FT_F2Dot14 y; + + } FT_UnitVector; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Matrix */ + /* */ + /* <Description> */ + /* A simple structure used to store a 2x2 matrix. Coefficients are */ + /* in 16.16 fixed float format. The computation performed is: */ + /* */ + /* { */ + /* x' = x*xx + y*xy */ + /* y' = x*yx + y*yy */ + /* } */ + /* */ + /* <Fields> */ + /* xx :: Matrix coefficient. */ + /* */ + /* xy :: Matrix coefficient. */ + /* */ + /* yx :: Matrix coefficient. */ + /* */ + /* yy :: Matrix coefficient. */ + /* */ + typedef struct FT_Matrix_ + { + FT_Fixed xx, xy; + FT_Fixed yx, yy; + + } FT_Matrix; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Data */ + /* */ + /* <Description> */ + /* Read-only binary data represented as a pointer and a length. */ + /* */ + /* <Fields> */ + /* pointer :: The data. */ + /* */ + /* length :: The length of the data in bytes. */ + /* */ + typedef struct FT_Data_ + { + const FT_Byte* pointer; + FT_Int length; + + } FT_Data; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Generic_Finalizer */ + /* */ + /* <Description> */ + /* Describe a function used to destroy the `client' data of any */ + /* FreeType object. See the description of the @FT_Generic type for */ + /* details of usage. */ + /* */ + /* <Input> */ + /* The address of the FreeType object which is under finalization. */ + /* Its client data is accessed through its `generic' field. */ + /* */ + typedef void (*FT_Generic_Finalizer)(void* object); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Generic */ + /* */ + /* <Description> */ + /* Client applications often need to associate their own data to a */ + /* variety of FreeType core objects. For example, a text layout API */ + /* might want to associate a glyph cache to a given size object. */ + /* */ + /* Most FreeType object contains a `generic' field, of type */ + /* FT_Generic, which usage is left to client applications and font */ + /* servers. */ + /* */ + /* It can be used to store a pointer to client-specific data, as well */ + /* as the address of a `finalizer' function, which will be called by */ + /* FreeType when the object is destroyed (for example, the previous */ + /* client example would put the address of the glyph cache destructor */ + /* in the `finalizer' field). */ + /* */ + /* <Fields> */ + /* data :: A typeless pointer to any client-specified data. This */ + /* field is completely ignored by the FreeType library. */ + /* */ + /* finalizer :: A pointer to a `generic finalizer' function, which */ + /* will be called when the object is destroyed. If this */ + /* field is set to NULL, no code will be called. */ + /* */ + typedef struct FT_Generic_ + { + void* data; + FT_Generic_Finalizer finalizer; + + } FT_Generic; + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_MAKE_TAG */ + /* */ + /* <Description> */ + /* This macro converts four-letter tags which are used to label */ + /* TrueType tables into an unsigned long to be used within FreeType. */ + /* */ + /* <Note> */ + /* The produced values *must* be 32-bit integers. Don't redefine */ + /* this macro. */ + /* */ +#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ + (FT_Tag) \ + ( ( (FT_ULong)_x1 << 24 ) | \ + ( (FT_ULong)_x2 << 16 ) | \ + ( (FT_ULong)_x3 << 8 ) | \ + (FT_ULong)_x4 ) + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* L I S T M A N A G E M E N T */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* list_processing */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_ListNode */ + /* */ + /* <Description> */ + /* Many elements and objects in FreeType are listed through an */ + /* @FT_List record (see @FT_ListRec). As its name suggests, an */ + /* FT_ListNode is a handle to a single list element. */ + /* */ + typedef struct FT_ListNodeRec_* FT_ListNode; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_List */ + /* */ + /* <Description> */ + /* A handle to a list record (see @FT_ListRec). */ + /* */ + typedef struct FT_ListRec_* FT_List; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_ListNodeRec */ + /* */ + /* <Description> */ + /* A structure used to hold a single list element. */ + /* */ + /* <Fields> */ + /* prev :: The previous element in the list. NULL if first. */ + /* */ + /* next :: The next element in the list. NULL if last. */ + /* */ + /* data :: A typeless pointer to the listed object. */ + /* */ + typedef struct FT_ListNodeRec_ + { + FT_ListNode prev; + FT_ListNode next; + void* data; + + } FT_ListNodeRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_ListRec */ + /* */ + /* <Description> */ + /* A structure used to hold a simple doubly-linked list. These are */ + /* used in many parts of FreeType. */ + /* */ + /* <Fields> */ + /* head :: The head (first element) of doubly-linked list. */ + /* */ + /* tail :: The tail (last element) of doubly-linked list. */ + /* */ + typedef struct FT_ListRec_ + { + FT_ListNode head; + FT_ListNode tail; + + } FT_ListRec; + + + /* */ + +#define FT_IS_EMPTY( list ) ( (list).head == 0 ) + + /* return base error code (without module-specific prefix) */ +#define FT_ERROR_BASE( x ) ( (x) & 0xFF ) + + /* return module error code */ +#define FT_ERROR_MODULE( x ) ( (x) & 0xFF00U ) + +#define FT_BOOL( x ) ( (FT_Bool)( x ) ) + +FT_END_HEADER + +#endif /* __FTTYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ftwinfnt.h b/uppsrc/plugin/FT_fontsys/ftwinfnt.h new file mode 100644 index 000000000..dd238ee14 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftwinfnt.h @@ -0,0 +1,274 @@ +/***************************************************************************/ +/* */ +/* ftwinfnt.h */ +/* */ +/* FreeType API for accessing Windows fnt-specific data. */ +/* */ +/* Copyright 2003, 2004, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTWINFNT_H__ +#define __FTWINFNT_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* winfnt_fonts */ + /* */ + /* <Title> */ + /* Window FNT Files */ + /* */ + /* <Abstract> */ + /* Windows FNT specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of Windows FNT specific */ + /* functions. */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @enum: + * FT_WinFNT_ID_XXX + * + * @description: + * A list of valid values for the `charset' byte in + * @FT_WinFNT_HeaderRec. Exact mapping tables for the various cpXXXX + * encodings (except for cp1361) can be found at ftp://ftp.unicode.org + * in the MAPPINGS/VENDORS/MICSFT/WINDOWS subdirectory. cp1361 is + * roughly a superset of MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT. + * + * @values: + * FT_WinFNT_ID_DEFAULT :: + * This is used for font enumeration and font creation as a + * `don't care' value. Valid font files don't contain this value. + * When querying for information about the character set of the font + * that is currently selected into a specified device context, this + * return value (of the related Windows API) simply denotes failure. + * + * FT_WinFNT_ID_SYMBOL :: + * There is no known mapping table available. + * + * FT_WinFNT_ID_MAC :: + * Mac Roman encoding. + * + * FT_WinFNT_ID_OEM :: + * From Michael Pöttgen <michael@poettgen.de>: + * + * The `Windows Font Mapping' article says that FT_WinFNT_ID_OEM + * is used for the charset of vector fonts, like `modern.fon', + * `roman.fon', and `script.fon' on Windows. + * + * The `CreateFont' documentation says: The FT_WinFNT_ID_OEM value + * specifies a character set that is operating-system dependent. + * + * The `IFIMETRICS' documentation from the `Windows Driver + * Development Kit' says: This font supports an OEM-specific + * character set. The OEM character set is system dependent. + * + * In general OEM, as opposed to ANSI (i.e., cp1252), denotes the + * second default codepage that most international versions of + * Windows have. It is one of the OEM codepages from + * + * http://www.microsoft.com/globaldev/reference/cphome.mspx, + * + * and is used for the `DOS boxes', to support legacy applications. + * A German Windows version for example usually uses ANSI codepage + * 1252 and OEM codepage 850. + * + * FT_WinFNT_ID_CP874 :: + * A superset of Thai TIS 620 and ISO 8859-11. + * + * FT_WinFNT_ID_CP932 :: + * A superset of Japanese Shift-JIS (with minor deviations). + * + * FT_WinFNT_ID_CP936 :: + * A superset of simplified Chinese GB 2312-1980 (with different + * ordering and minor deviations). + * + * FT_WinFNT_ID_CP949 :: + * A superset of Korean Hangul KS~C 5601-1987 (with different + * ordering and minor deviations). + * + * FT_WinFNT_ID_CP950 :: + * A superset of traditional Chinese Big~5 ETen (with different + * ordering and minor deviations). + * + * FT_WinFNT_ID_CP1250 :: + * A superset of East European ISO 8859-2 (with slightly different + * ordering). + * + * FT_WinFNT_ID_CP1251 :: + * A superset of Russian ISO 8859-5 (with different ordering). + * + * FT_WinFNT_ID_CP1252 :: + * ANSI encoding. A superset of ISO 8859-1. + * + * FT_WinFNT_ID_CP1253 :: + * A superset of Greek ISO 8859-7 (with minor modifications). + * + * FT_WinFNT_ID_CP1254 :: + * A superset of Turkish ISO 8859-9. + * + * FT_WinFNT_ID_CP1255 :: + * A superset of Hebrew ISO 8859-8 (with some modifications). + * + * FT_WinFNT_ID_CP1256 :: + * A superset of Arabic ISO 8859-6 (with different ordering). + * + * FT_WinFNT_ID_CP1257 :: + * A superset of Baltic ISO 8859-13 (with some deviations). + * + * FT_WinFNT_ID_CP1258 :: + * For Vietnamese. This encoding doesn't cover all necessary + * characters. + * + * FT_WinFNT_ID_CP1361 :: + * Korean (Johab). + */ + +#define FT_WinFNT_ID_CP1252 0 +#define FT_WinFNT_ID_DEFAULT 1 +#define FT_WinFNT_ID_SYMBOL 2 +#define FT_WinFNT_ID_MAC 77 +#define FT_WinFNT_ID_CP932 128 +#define FT_WinFNT_ID_CP949 129 +#define FT_WinFNT_ID_CP1361 130 +#define FT_WinFNT_ID_CP936 134 +#define FT_WinFNT_ID_CP950 136 +#define FT_WinFNT_ID_CP1253 161 +#define FT_WinFNT_ID_CP1254 162 +#define FT_WinFNT_ID_CP1258 163 +#define FT_WinFNT_ID_CP1255 177 +#define FT_WinFNT_ID_CP1256 178 +#define FT_WinFNT_ID_CP1257 186 +#define FT_WinFNT_ID_CP1251 204 +#define FT_WinFNT_ID_CP874 222 +#define FT_WinFNT_ID_CP1250 238 +#define FT_WinFNT_ID_OEM 255 + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_WinFNT_HeaderRec */ + /* */ + /* <Description> */ + /* Windows FNT Header info. */ + /* */ + typedef struct FT_WinFNT_HeaderRec_ + { + FT_UShort version; + FT_ULong file_size; + FT_Byte copyright[60]; + FT_UShort file_type; + FT_UShort nominal_point_size; + FT_UShort vertical_resolution; + FT_UShort horizontal_resolution; + FT_UShort ascent; + FT_UShort internal_leading; + FT_UShort external_leading; + FT_Byte italic; + FT_Byte underline; + FT_Byte strike_out; + FT_UShort weight; + FT_Byte charset; + FT_UShort pixel_width; + FT_UShort pixel_height; + FT_Byte pitch_and_family; + FT_UShort avg_width; + FT_UShort max_width; + FT_Byte first_char; + FT_Byte last_char; + FT_Byte default_char; + FT_Byte break_char; + FT_UShort bytes_per_row; + FT_ULong device_offset; + FT_ULong face_name_offset; + FT_ULong bits_pointer; + FT_ULong bits_offset; + FT_Byte reserved; + FT_ULong flags; + FT_UShort A_space; + FT_UShort B_space; + FT_UShort C_space; + FT_UShort color_table_offset; + FT_ULong reserved1[4]; + + } FT_WinFNT_HeaderRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_WinFNT_Header */ + /* */ + /* <Description> */ + /* A handle to an @FT_WinFNT_HeaderRec structure. */ + /* */ + typedef struct FT_WinFNT_HeaderRec_* FT_WinFNT_Header; + + + /********************************************************************** + * + * @function: + * FT_Get_WinFNT_Header + * + * @description: + * Retrieve a Windows FNT font info header. + * + * @input: + * face :: A handle to the input face. + * + * @output: + * aheader :: The WinFNT header. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with Windows FNT faces, returning an error + * otherwise. + */ + FT_EXPORT( FT_Error ) + FT_Get_WinFNT_Header( FT_Face face, + FT_WinFNT_HeaderRec *aheader ); + + + /* */ + +FT_END_HEADER + +#endif /* __FTWINFNT_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/ftxf86.h b/uppsrc/plugin/FT_fontsys/ftxf86.h new file mode 100644 index 000000000..a5a0708d5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ftxf86.h @@ -0,0 +1,83 @@ +/***************************************************************************/ +/* */ +/* ftxf86.h */ +/* */ +/* Support functions for X11. */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTXF86_H__ +#define __FTXF86_H__ + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* font_formats */ + /* */ + /* <Title> */ + /* Font Formats */ + /* */ + /* <Abstract> */ + /* Getting the font format. */ + /* */ + /* <Description> */ + /* The single function in this section can be used to get the font */ + /* format. Note that this information is not needed normally; */ + /* however, there are special cases (like in PDF devices) where it is */ + /* important to differentiate, in spite of FreeType's uniform API. */ + /* */ + /* This function is in the X11/xf86 namespace for historical reasons */ + /* and in no way depends on that windowing system. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_X11_Font_Format */ + /* */ + /* <Description> */ + /* Return a string describing the format of a given face, using values */ + /* which can be used as an X11 FONT_PROPERTY. Possible values are */ + /* `TrueType', `Type~1', `BDF', `PCF', `Type~42', `CID~Type~1', `CFF', */ + /* `PFR', and `Windows~FNT'. */ + /* */ + /* <Input> */ + /* face :: */ + /* Input face handle. */ + /* */ + /* <Return> */ + /* Font format string. NULL in case of error. */ + /* */ + FT_EXPORT( const char* ) + FT_Get_X11_Font_Format( FT_Face face ); + + /* */ + +FT_END_HEADER + +#endif /* __FTXF86_H__ */ diff --git a/uppsrc/plugin/FT_fontsys/init b/uppsrc/plugin/FT_fontsys/init new file mode 100644 index 000000000..7d7198be1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/init @@ -0,0 +1,4 @@ +#ifndef _plugin_FT_fontsys_icpp_init_stub +#define _plugin_FT_fontsys_icpp_init_stub +#include "Draw/init" +#endif diff --git a/uppsrc/plugin/FT_fontsys/internal/autohint.h b/uppsrc/plugin/FT_fontsys/internal/autohint.h new file mode 100644 index 000000000..2ebb816fc --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/autohint.h @@ -0,0 +1,231 @@ +/***************************************************************************/ +/* */ +/* autohint.h */ +/* */ +/* High-level `autohint' module-specific interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The auto-hinter is used to load and automatically hint glyphs if a */ + /* format-specific hinter isn't available. */ + /* */ + /*************************************************************************/ + + +#ifndef __AUTOHINT_H__ +#define __AUTOHINT_H__ + + + /*************************************************************************/ + /* */ + /* A small technical note regarding automatic hinting in order to */ + /* clarify this module interface. */ + /* */ + /* An automatic hinter might compute two kinds of data for a given face: */ + /* */ + /* - global hints: Usually some metrics that describe global properties */ + /* of the face. It is computed by scanning more or less */ + /* aggressively the glyphs in the face, and thus can be */ + /* very slow to compute (even if the size of global */ + /* hints is really small). */ + /* */ + /* - glyph hints: These describe some important features of the glyph */ + /* outline, as well as how to align them. They are */ + /* generally much faster to compute than global hints. */ + /* */ + /* The current FreeType auto-hinter does a pretty good job while */ + /* performing fast computations for both global and glyph hints. */ + /* However, we might be interested in introducing more complex and */ + /* powerful algorithms in the future, like the one described in the John */ + /* D. Hobby paper, which unfortunately requires a lot more horsepower. */ + /* */ + /* Because a sufficiently sophisticated font management system would */ + /* typically implement an LRU cache of opened face objects to reduce */ + /* memory usage, it is a good idea to be able to avoid recomputing */ + /* global hints every time the same face is re-opened. */ + /* */ + /* We thus provide the ability to cache global hints outside of the face */ + /* object, in order to speed up font re-opening time. Of course, this */ + /* feature is purely optional, so most client programs won't even notice */ + /* it. */ + /* */ + /* I initially thought that it would be a good idea to cache the glyph */ + /* hints too. However, my general idea now is that if you really need */ + /* to cache these too, you are simply in need of a new font format, */ + /* where all this information could be stored within the font file and */ + /* decoded on the fly. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + typedef struct FT_AutoHinterRec_ *FT_AutoHinter; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlobalGetFunc */ + /* */ + /* <Description> */ + /* Retrieves the global hints computed for a given face object the */ + /* resulting data is dissociated from the face and will survive a */ + /* call to FT_Done_Face(). It must be discarded through the API */ + /* FT_AutoHinter_GlobalDoneFunc(). */ + /* */ + /* <Input> */ + /* hinter :: A handle to the source auto-hinter. */ + /* */ + /* face :: A handle to the source face object. */ + /* */ + /* <Output> */ + /* global_hints :: A typeless pointer to the global hints. */ + /* */ + /* global_len :: The size in bytes of the global hints. */ + /* */ + typedef void + (*FT_AutoHinter_GlobalGetFunc)( FT_AutoHinter hinter, + FT_Face face, + void** global_hints, + long* global_len ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlobalDoneFunc */ + /* */ + /* <Description> */ + /* Discards the global hints retrieved through */ + /* FT_AutoHinter_GlobalGetFunc(). This is the only way these hints */ + /* are freed from memory. */ + /* */ + /* <Input> */ + /* hinter :: A handle to the auto-hinter module. */ + /* */ + /* global :: A pointer to retrieved global hints to discard. */ + /* */ + typedef void + (*FT_AutoHinter_GlobalDoneFunc)( FT_AutoHinter hinter, + void* global ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlobalResetFunc */ + /* */ + /* <Description> */ + /* This function is used to recompute the global metrics in a given */ + /* font. This is useful when global font data changes (e.g. Multiple */ + /* Masters fonts where blend coordinates change). */ + /* */ + /* <Input> */ + /* hinter :: A handle to the source auto-hinter. */ + /* */ + /* face :: A handle to the face. */ + /* */ + typedef void + (*FT_AutoHinter_GlobalResetFunc)( FT_AutoHinter hinter, + FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlyphLoadFunc */ + /* */ + /* <Description> */ + /* This function is used to load, scale, and automatically hint a */ + /* glyph from a given face. */ + /* */ + /* <Input> */ + /* face :: A handle to the face. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* load_flags :: The load flags. */ + /* */ + /* <Note> */ + /* This function is capable of loading composite glyphs by hinting */ + /* each sub-glyph independently (which improves quality). */ + /* */ + /* It will call the font driver with FT_Load_Glyph(), with */ + /* FT_LOAD_NO_SCALE set. */ + /* */ + typedef FT_Error + (*FT_AutoHinter_GlyphLoadFunc)( FT_AutoHinter hinter, + FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_AutoHinter_ServiceRec */ + /* */ + /* <Description> */ + /* The auto-hinter module's interface. */ + /* */ + typedef struct FT_AutoHinter_ServiceRec_ + { + FT_AutoHinter_GlobalResetFunc reset_face; + FT_AutoHinter_GlobalGetFunc get_global_hints; + FT_AutoHinter_GlobalDoneFunc done_global_hints; + FT_AutoHinter_GlyphLoadFunc load_glyph; + + } FT_AutoHinter_ServiceRec, *FT_AutoHinter_Service; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_AUTOHINTER_SERVICE(class_, reset_face_, get_global_hints_, \ + done_global_hints_, load_glyph_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_AutoHinter_ServiceRec class_ = \ + { \ + reset_face_, get_global_hints_, done_global_hints_, load_glyph_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_AUTOHINTER_SERVICE(class_, reset_face_, get_global_hints_, \ + done_global_hints_, load_glyph_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_AutoHinter_ServiceRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->reset_face = reset_face_; \ + clazz->get_global_hints = get_global_hints_; \ + clazz->done_global_hints = done_global_hints_; \ + clazz->load_glyph = load_glyph_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __AUTOHINT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftcalc.h b/uppsrc/plugin/FT_fontsys/internal/ftcalc.h new file mode 100644 index 000000000..8bd515a10 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftcalc.h @@ -0,0 +1,179 @@ +/***************************************************************************/ +/* */ +/* ftcalc.h */ +/* */ +/* Arithmetic computations (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCALC_H__ +#define __FTCALC_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_FixedSqrt */ + /* */ + /* <Description> */ + /* Computes the square root of a 16.16 fixed point value. */ + /* */ + /* <Input> */ + /* x :: The value to compute the root for. */ + /* */ + /* <Return> */ + /* The result of `sqrt(x)'. */ + /* */ + /* <Note> */ + /* This function is not very fast. */ + /* */ + FT_BASE( FT_Int32 ) + FT_SqrtFixed( FT_Int32 x ); + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Sqrt32 */ + /* */ + /* <Description> */ + /* Computes the square root of an Int32 integer (which will be */ + /* handled as an unsigned long value). */ + /* */ + /* <Input> */ + /* x :: The value to compute the root for. */ + /* */ + /* <Return> */ + /* The result of `sqrt(x)'. */ + /* */ + FT_EXPORT( FT_Int32 ) + FT_Sqrt32( FT_Int32 x ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* FT_MulDiv() and FT_MulFix() are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_MulDiv_No_Round */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation `(a*b)/c' */ + /* (without rounding) with maximal accuracy (it uses a 64-bit */ + /* intermediate integer whenever necessary). */ + /* */ + /* This function isn't necessarily as fast as some processor specific */ + /* operations, but is at least completely portable. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. */ + /* c :: The divisor. */ + /* */ + /* <Return> */ + /* The result of `(a*b)/c'. This function never traps when trying to */ + /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ + /* on the signs of `a' and `b'. */ + /* */ + FT_BASE( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ); + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* + * A variant of FT_Matrix_Multiply which scales its result afterwards. + * The idea is that both `a' and `b' are scaled by factors of 10 so that + * the values are as precise as possible to get a correct result during + * the 64bit multiplication. Let `sa' and `sb' be the scaling factors of + * `a' and `b', respectively, then the scaling factor of the result is + * `sa*sb'. + */ + FT_BASE( void ) + FT_Matrix_Multiply_Scaled( const FT_Matrix* a, + FT_Matrix *b, + FT_Long scaling ); + + + /* + * A variant of FT_Vector_Transform. See comments for + * FT_Matrix_Multiply_Scaled. + */ + + FT_BASE( void ) + FT_Vector_Transform_Scaled( FT_Vector* vector, + const FT_Matrix* matrix, + FT_Long scaling ); + + + /* + * Return -1, 0, or +1, depending on the orientation of a given corner. + * We use the Cartesian coordinate system, with positive vertical values + * going upwards. The function returns +1 if the corner turns to the + * left, -1 to the right, and 0 for undecidable cases. + */ + FT_BASE( FT_Int ) + ft_corner_orientation( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ); + + /* + * Return TRUE if a corner is flat or nearly flat. This is equivalent to + * saying that the angle difference between the `in' and `out' vectors is + * very small. + */ + FT_BASE( FT_Int ) + ft_corner_is_flat( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ); + + +#define INT_TO_F26DOT6( x ) ( (FT_Long)(x) << 6 ) +#define INT_TO_F2DOT14( x ) ( (FT_Long)(x) << 14 ) +#define INT_TO_FIXED( x ) ( (FT_Long)(x) << 16 ) +#define F2DOT14_TO_FIXED( x ) ( (FT_Long)(x) << 2 ) +#define FLOAT_TO_FIXED( x ) ( (FT_Long)( x * 65536.0 ) ) +#define FIXED_TO_INT( x ) ( FT_RoundFix( x ) >> 16 ) + +#define ROUND_F26DOT6( x ) ( x >= 0 ? ( ( (x) + 32 ) & -64 ) \ + : ( -( ( 32 - (x) ) & -64 ) ) ) + + +FT_END_HEADER + +#endif /* __FTCALC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftdebug.h b/uppsrc/plugin/FT_fontsys/internal/ftdebug.h new file mode 100644 index 000000000..5b7b24c4c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftdebug.h @@ -0,0 +1,250 @@ +/***************************************************************************/ +/* */ +/* ftdebug.h */ +/* */ +/* Debugging and logging component (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/* */ +/* IMPORTANT: A description of FreeType's debugging support can be */ +/* found in `docs/DEBUG.TXT'. Read it if you need to use or */ +/* understand this code. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTDEBUG_H__ +#define __FTDEBUG_H__ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + /* force the definition of FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE */ + /* is already defined; this simplifies the following #ifdefs */ + /* */ +#ifdef FT_DEBUG_LEVEL_TRACE +#undef FT_DEBUG_LEVEL_ERROR +#define FT_DEBUG_LEVEL_ERROR +#endif + + + /*************************************************************************/ + /* */ + /* Define the trace enums as well as the trace levels array when they */ + /* are needed. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define FT_TRACE_DEF( x ) trace_ ## x , + + /* defining the enumeration */ + typedef enum FT_Trace_ + { +#include FT_INTERNAL_TRACE_H + trace_count + + } FT_Trace; + + + /* defining the array of trace levels, provided by `src/base/ftdebug.c' */ + extern int ft_trace_levels[trace_count]; + +#undef FT_TRACE_DEF + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /* */ + /* Define the FT_TRACE macro */ + /* */ + /* IMPORTANT! */ + /* */ + /* Each component must define the macro FT_COMPONENT to a valid FT_Trace */ + /* value before using any TRACE macro. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define FT_TRACE( level, varformat ) \ + do \ + { \ + if ( ft_trace_levels[FT_COMPONENT] >= level ) \ + FT_Message varformat; \ + } while ( 0 ) + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define FT_TRACE( level, varformat ) do { } while ( 0 ) /* nothing */ + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Trace_Get_Count */ + /* */ + /* <Description> */ + /* Return the number of available trace components. */ + /* */ + /* <Return> */ + /* The number of trace components. 0 if FreeType 2 is not built with */ + /* FT_DEBUG_LEVEL_TRACE definition. */ + /* */ + /* <Note> */ + /* This function may be useful if you want to access elements of */ + /* the internal `ft_trace_levels' array by an index. */ + /* */ + FT_BASE( FT_Int ) + FT_Trace_Get_Count( void ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Trace_Get_Name */ + /* */ + /* <Description> */ + /* Return the name of a trace component. */ + /* */ + /* <Input> */ + /* The index of the trace component. */ + /* */ + /* <Return> */ + /* The name of the trace component. This is a statically allocated */ + /* C string, so do not free it after use. NULL if FreeType 2 is not */ + /* built with FT_DEBUG_LEVEL_TRACE definition. */ + /* */ + /* <Note> */ + /* Use @FT_Trace_Get_Count to get the number of available trace */ + /* components. */ + /* */ + /* This function may be useful if you want to control FreeType 2's */ + /* debug level in your application. */ + /* */ + FT_BASE( const char * ) + FT_Trace_Get_Name( FT_Int idx ); + + + /*************************************************************************/ + /* */ + /* You need two opening and closing parentheses! */ + /* */ + /* Example: FT_TRACE0(( "Value is %i", foo )) */ + /* */ + /* Output of the FT_TRACEX macros is sent to stderr. */ + /* */ + /*************************************************************************/ + +#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat ) +#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat ) +#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat ) +#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat ) +#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat ) +#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat ) +#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat ) +#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat ) + + + /*************************************************************************/ + /* */ + /* Define the FT_ERROR macro. */ + /* */ + /* Output of this macro is sent to stderr. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_ERROR + +#define FT_ERROR( varformat ) FT_Message varformat + +#else /* !FT_DEBUG_LEVEL_ERROR */ + +#define FT_ERROR( varformat ) do { } while ( 0 ) /* nothing */ + +#endif /* !FT_DEBUG_LEVEL_ERROR */ + + + /*************************************************************************/ + /* */ + /* Define the FT_ASSERT macro. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_ERROR + +#define FT_ASSERT( condition ) \ + do \ + { \ + if ( !( condition ) ) \ + FT_Panic( "assertion failed on line %d of file %s\n", \ + __LINE__, __FILE__ ); \ + } while ( 0 ) + +#else /* !FT_DEBUG_LEVEL_ERROR */ + +#define FT_ASSERT( condition ) do { } while ( 0 ) + +#endif /* !FT_DEBUG_LEVEL_ERROR */ + + + /*************************************************************************/ + /* */ + /* Define `FT_Message' and `FT_Panic' when needed. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_ERROR + +#include "stdio.h" /* for vfprintf() */ + + /* print a message */ + FT_BASE( void ) + FT_Message( const char* fmt, + ... ); + + /* print a message and exit */ + FT_BASE( void ) + FT_Panic( const char* fmt, + ... ); + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + + FT_BASE( void ) + ft_debug_init( void ); + + +#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */ + + /* We disable the warning `conditional expression is constant' here */ + /* in order to compile cleanly with the maximum level of warnings. */ +#pragma warning( disable : 4127 ) + +#endif /* _MSC_VER */ + + +FT_END_HEADER + +#endif /* __FTDEBUG_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftdriver.h b/uppsrc/plugin/FT_fontsys/internal/ftdriver.h new file mode 100644 index 000000000..0520c6eba --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftdriver.h @@ -0,0 +1,422 @@ +/***************************************************************************/ +/* */ +/* ftdriver.h */ +/* */ +/* FreeType font driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTDRIVER_H__ +#define __FTDRIVER_H__ + + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + typedef FT_Error + (*FT_Face_InitFunc)( FT_Stream stream, + FT_Face face, + FT_Int typeface_index, + FT_Int num_params, + FT_Parameter* parameters ); + + typedef void + (*FT_Face_DoneFunc)( FT_Face face ); + + + typedef FT_Error + (*FT_Size_InitFunc)( FT_Size size ); + + typedef void + (*FT_Size_DoneFunc)( FT_Size size ); + + + typedef FT_Error + (*FT_Slot_InitFunc)( FT_GlyphSlot slot ); + + typedef void + (*FT_Slot_DoneFunc)( FT_GlyphSlot slot ); + + + typedef FT_Error + (*FT_Size_RequestFunc)( FT_Size size, + FT_Size_Request req ); + + typedef FT_Error + (*FT_Size_SelectFunc)( FT_Size size, + FT_ULong size_index ); + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + typedef FT_Error + (*FT_Size_ResetPointsFunc)( FT_Size size, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ); + + typedef FT_Error + (*FT_Size_ResetPixelsFunc)( FT_Size size, + FT_UInt pixel_width, + FT_UInt pixel_height ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + typedef FT_Error + (*FT_Slot_LoadFunc)( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + + typedef FT_UInt + (*FT_CharMap_CharIndexFunc)( FT_CharMap charmap, + FT_Long charcode ); + + typedef FT_Long + (*FT_CharMap_CharNextFunc)( FT_CharMap charmap, + FT_Long charcode ); + + + typedef FT_Error + (*FT_Face_GetKerningFunc)( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ); + + + typedef FT_Error + (*FT_Face_AttachFunc)( FT_Face face, + FT_Stream stream ); + + + typedef FT_Error + (*FT_Face_GetAdvancesFunc)( FT_Face face, + FT_UInt first, + FT_UInt count, + FT_Int32 flags, + FT_Fixed* advances ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Driver_ClassRec */ + /* */ + /* <Description> */ + /* The font driver class. This structure mostly contains pointers to */ + /* driver methods. */ + /* */ + /* <Fields> */ + /* root :: The parent module. */ + /* */ + /* face_object_size :: The size of a face object in bytes. */ + /* */ + /* size_object_size :: The size of a size object in bytes. */ + /* */ + /* slot_object_size :: The size of a glyph object in bytes. */ + /* */ + /* init_face :: The format-specific face constructor. */ + /* */ + /* done_face :: The format-specific face destructor. */ + /* */ + /* init_size :: The format-specific size constructor. */ + /* */ + /* done_size :: The format-specific size destructor. */ + /* */ + /* init_slot :: The format-specific slot constructor. */ + /* */ + /* done_slot :: The format-specific slot destructor. */ + /* */ + /* */ + /* load_glyph :: A function handle to load a glyph to a slot. */ + /* This field is mandatory! */ + /* */ + /* get_kerning :: A function handle to return the unscaled */ + /* kerning for a given pair of glyphs. Can be */ + /* set to 0 if the format doesn't support */ + /* kerning. */ + /* */ + /* attach_file :: This function handle is used to read */ + /* additional data for a face from another */ + /* file/stream. For example, this can be used to */ + /* add data from AFM or PFM files on a Type 1 */ + /* face, or a CIDMap on a CID-keyed face. */ + /* */ + /* get_advances :: A function handle used to return advance */ + /* widths of `count' glyphs (in font units), */ + /* starting at `first'. The `vertical' flag must */ + /* be set to get vertical advance heights. The */ + /* `advances' buffer is caller-allocated. */ + /* Currently not implemented. The idea of this */ + /* function is to be able to perform */ + /* device-independent text layout without loading */ + /* a single glyph image. */ + /* */ + /* request_size :: A handle to a function used to request the new */ + /* character size. Can be set to 0 if the */ + /* scaling done in the base layer suffices. */ + /* */ + /* select_size :: A handle to a function used to select a new */ + /* fixed size. It is used only if */ + /* @FT_FACE_FLAG_FIXED_SIZES is set. Can be set */ + /* to 0 if the scaling done in the base layer */ + /* suffices. */ + /* <Note> */ + /* Most function pointers, with the exception of `load_glyph', can be */ + /* set to 0 to indicate a default behaviour. */ + /* */ + typedef struct FT_Driver_ClassRec_ + { + FT_Module_Class root; + + FT_Long face_object_size; + FT_Long size_object_size; + FT_Long slot_object_size; + + FT_Face_InitFunc init_face; + FT_Face_DoneFunc done_face; + + FT_Size_InitFunc init_size; + FT_Size_DoneFunc done_size; + + FT_Slot_InitFunc init_slot; + FT_Slot_DoneFunc done_slot; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_Size_ResetPointsFunc set_char_sizes; + FT_Size_ResetPixelsFunc set_pixel_sizes; + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_Slot_LoadFunc load_glyph; + + FT_Face_GetKerningFunc get_kerning; + FT_Face_AttachFunc attach_file; + FT_Face_GetAdvancesFunc get_advances; + + /* since version 2.2 */ + FT_Size_RequestFunc request_size; + FT_Size_SelectFunc select_size; + + } FT_Driver_ClassRec, *FT_Driver_Class; + + + /* + * The following functions are used as stubs for `set_char_sizes' and + * `set_pixel_sizes'; the code uses `request_size' and `select_size' + * functions instead. + * + * Implementation is in `src/base/ftobjs.c'. + */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE( FT_Error ) + ft_stub_set_char_sizes( FT_Size size, + FT_F26Dot6 width, + FT_F26Dot6 height, + FT_UInt horz_res, + FT_UInt vert_res ); + + FT_BASE( FT_Error ) + ft_stub_set_pixel_sizes( FT_Size size, + FT_UInt width, + FT_UInt height ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DECLARE_DRIVER */ + /* */ + /* <Description> */ + /* Used to create a forward declaration of a */ + /* FT_Driver_ClassRec stract instance. */ + /* */ + /* <Macro> */ + /* FT_DEFINE_DRIVER */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Driver_ClassRec struct. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated stracture is returned.*/ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* fcinit.c (ft_create_default_module_classes) already contains */ + /* a mechanism to call these functions for the default modules */ + /* described in ftmodule.h */ + /* */ + /* Notice that the created Create and Destroy functions call */ + /* pic_init and pic_free function to allow you to manually allocate */ + /* and initialize any additional global data, like module specific */ + /* interface, and put them in the global pic container defined in */ + /* ftpic.h. if you don't need them just implement the functions as */ + /* empty to resolve the link error. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) \ + a_, b_, +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) +#endif + +#define FT_DECLARE_DRIVER(class_) \ + FT_CALLBACK_TABLE \ + const FT_Driver_ClassRec class_; + +#define FT_DEFINE_DRIVER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + face_object_size_, size_object_size_, \ + slot_object_size_, init_face_, done_face_, \ + init_size_, done_size_, init_slot_, done_slot_, \ + old_set_char_sizes_, old_set_pixel_sizes_, \ + load_glyph_, get_kerning_, attach_file_, \ + get_advances_, request_size_, select_size_ ) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Driver_ClassRec class_ = \ + { \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_,interface_, \ + init_,done_,get_interface_) \ + \ + face_object_size_, \ + size_object_size_, \ + slot_object_size_, \ + \ + init_face_, \ + done_face_, \ + \ + init_size_, \ + done_size_, \ + \ + init_slot_, \ + done_slot_, \ + \ + FT_DEFINE_DRIVERS_OLD_INTERNALS(old_set_char_sizes_, old_set_pixel_sizes_) \ + \ + load_glyph_, \ + \ + get_kerning_, \ + attach_file_, \ + get_advances_, \ + \ + request_size_, \ + select_size_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) \ + clazz->set_char_sizes = a_; \ + clazz->set_pixel_sizes = b_; +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) +#endif + +#define FT_DECLARE_DRIVER(class_) FT_DECLARE_MODULE(class_) + +#define FT_DEFINE_DRIVER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + face_object_size_, size_object_size_, \ + slot_object_size_, init_face_, done_face_, \ + init_size_, done_size_, init_slot_, done_slot_, \ + old_set_char_sizes_, old_set_pixel_sizes_, \ + load_glyph_, get_kerning_, attach_file_, \ + get_advances_, request_size_, select_size_ ) \ + void class_##_pic_free( FT_Library library ); \ + FT_Error class_##_pic_init( FT_Library library ); \ + \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + FT_Driver_Class dclazz = (FT_Driver_Class)clazz; \ + class_##_pic_free( library ); \ + if ( dclazz ) \ + FT_FREE( dclazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ) \ + { \ + FT_Driver_Class clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ + return error; \ + \ + error = class_##_pic_init( library ); \ + if(error) \ + { \ + FT_FREE( clazz ); \ + return error; \ + } \ + \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_,interface_, \ + init_,done_,get_interface_) \ + \ + clazz->face_object_size = face_object_size_; \ + clazz->size_object_size = size_object_size_; \ + clazz->slot_object_size = slot_object_size_; \ + \ + clazz->init_face = init_face_; \ + clazz->done_face = done_face_; \ + \ + clazz->init_size = init_size_; \ + clazz->done_size = done_size_; \ + \ + clazz->init_slot = init_slot_; \ + clazz->done_slot = done_slot_; \ + \ + FT_DEFINE_DRIVERS_OLD_INTERNALS(old_set_char_sizes_, old_set_pixel_sizes_) \ + \ + clazz->load_glyph = load_glyph_; \ + \ + clazz->get_kerning = get_kerning_; \ + clazz->attach_file = attach_file_; \ + clazz->get_advances = get_advances_; \ + \ + clazz->request_size = request_size_; \ + clazz->select_size = select_size_; \ + \ + *output_class = (FT_Module_Class*)clazz; \ + return FT_Err_Ok; \ + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __FTDRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftgloadr.h b/uppsrc/plugin/FT_fontsys/internal/ftgloadr.h new file mode 100644 index 000000000..a52e97e61 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftgloadr.h @@ -0,0 +1,168 @@ +/***************************************************************************/ +/* */ +/* ftgloadr.h */ +/* */ +/* The FreeType glyph loader (specification). */ +/* */ +/* Copyright 2002, 2003, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGLOADR_H__ +#define __FTGLOADR_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_GlyphLoader */ + /* */ + /* <Description> */ + /* The glyph loader is an internal object used to load several glyphs */ + /* together (for example, in the case of composites). */ + /* */ + /* <Note> */ + /* The glyph loader implementation is not part of the high-level API, */ + /* hence the forward structure declaration. */ + /* */ + typedef struct FT_GlyphLoaderRec_* FT_GlyphLoader ; + + +#if 0 /* moved to freetype.h in version 2.2 */ +#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 +#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 +#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 +#define FT_SUBGLYPH_FLAG_SCALE 8 +#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 +#define FT_SUBGLYPH_FLAG_2X2 0x80 +#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 +#endif + + + typedef struct FT_SubGlyphRec_ + { + FT_Int index; + FT_UShort flags; + FT_Int arg1; + FT_Int arg2; + FT_Matrix transform; + + } FT_SubGlyphRec; + + + typedef struct FT_GlyphLoadRec_ + { + FT_Outline outline; /* outline */ + FT_Vector* extra_points; /* extra points table */ + FT_Vector* extra_points2; /* second extra points table */ + FT_UInt num_subglyphs; /* number of subglyphs */ + FT_SubGlyph subglyphs; /* subglyphs */ + + } FT_GlyphLoadRec, *FT_GlyphLoad; + + + typedef struct FT_GlyphLoaderRec_ + { + FT_Memory memory; + FT_UInt max_points; + FT_UInt max_contours; + FT_UInt max_subglyphs; + FT_Bool use_extra; + + FT_GlyphLoadRec base; + FT_GlyphLoadRec current; + + void* other; /* for possible future extension? */ + + } FT_GlyphLoaderRec; + + + /* create new empty glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_New( FT_Memory memory, + FT_GlyphLoader *aloader ); + + /* add an extra points table to a glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader ); + + /* destroy a glyph loader */ + FT_BASE( void ) + FT_GlyphLoader_Done( FT_GlyphLoader loader ); + + /* reset a glyph loader (frees everything int it) */ + FT_BASE( void ) + FT_GlyphLoader_Reset( FT_GlyphLoader loader ); + + /* rewind a glyph loader */ + FT_BASE( void ) + FT_GlyphLoader_Rewind( FT_GlyphLoader loader ); + + /* check that there is enough space to add `n_points' and `n_contours' */ + /* to the glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader, + FT_UInt n_points, + FT_UInt n_contours ); + + +#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \ + ( (_count) == 0 || ((_loader)->base.outline.n_points + \ + (_loader)->current.outline.n_points + \ + (unsigned long)(_count)) <= (_loader)->max_points ) + +#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \ + ( (_count) == 0 || ((_loader)->base.outline.n_contours + \ + (_loader)->current.outline.n_contours + \ + (unsigned long)(_count)) <= (_loader)->max_contours ) + +#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points,_contours ) \ + ( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \ + FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \ + ? 0 \ + : FT_GlyphLoader_CheckPoints( (_loader), (_points), (_contours) ) ) + + + /* check that there is enough space to add `n_subs' sub-glyphs to */ + /* a glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader, + FT_UInt n_subs ); + + /* prepare a glyph loader, i.e. empty the current glyph */ + FT_BASE( void ) + FT_GlyphLoader_Prepare( FT_GlyphLoader loader ); + + /* add the current glyph to the base glyph */ + FT_BASE( void ) + FT_GlyphLoader_Add( FT_GlyphLoader loader ); + + /* copy points from one glyph loader to another */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CopyPoints( FT_GlyphLoader target, + FT_GlyphLoader source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTGLOADR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftmemory.h b/uppsrc/plugin/FT_fontsys/internal/ftmemory.h new file mode 100644 index 000000000..655733bf9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftmemory.h @@ -0,0 +1,380 @@ +/***************************************************************************/ +/* */ +/* ftmemory.h */ +/* */ +/* The FreeType memory management macros (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMEMORY_H__ +#define __FTMEMORY_H__ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_TYPES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_SET_ERROR */ + /* */ + /* <Description> */ + /* This macro is used to set an implicit `error' variable to a given */ + /* expression's value (usually a function call), and convert it to a */ + /* boolean which is set whenever the value is != 0. */ + /* */ +#undef FT_SET_ERROR +#define FT_SET_ERROR( expression ) \ + ( ( error = (expression) ) != 0 ) + + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M E M O R Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* + * C++ refuses to handle statements like p = (void*)anything, with `p' a + * typed pointer. Since we don't have a `typeof' operator in standard + * C++, we have to use a template to emulate it. + */ + +#ifdef __cplusplus + + extern "C++" + template <typename T> inline T* + cplusplus_typeof( T*, + void *v ) + { + return static_cast <T*> ( v ); + } + +#define FT_ASSIGNP( p, val ) (p) = cplusplus_typeof( (p), (val) ) + +#else + +#define FT_ASSIGNP( p, val ) (p) = (val) + +#endif + + + +#ifdef FT_DEBUG_MEMORY + + FT_BASE( const char* ) _ft_debug_file; + FT_BASE( long ) _ft_debug_lineno; + +#define FT_DEBUG_INNER( exp ) ( _ft_debug_file = __FILE__, \ + _ft_debug_lineno = __LINE__, \ + (exp) ) + +#define FT_ASSIGNP_INNER( p, exp ) ( _ft_debug_file = __FILE__, \ + _ft_debug_lineno = __LINE__, \ + FT_ASSIGNP( p, exp ) ) + +#else /* !FT_DEBUG_MEMORY */ + +#define FT_DEBUG_INNER( exp ) (exp) +#define FT_ASSIGNP_INNER( p, exp ) FT_ASSIGNP( p, exp ) + +#endif /* !FT_DEBUG_MEMORY */ + + + /* + * The allocation functions return a pointer, and the error code + * is written to through the `p_error' parameter. See below for + * for documentation. + */ + + FT_BASE( FT_Pointer ) + ft_mem_alloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_qalloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_realloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_qrealloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ); + + FT_BASE( void ) + ft_mem_free( FT_Memory memory, + const void* P ); + + +#define FT_MEM_ALLOC( ptr, size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_alloc( memory, (size), &error ) ) + +#define FT_MEM_FREE( ptr ) \ + FT_BEGIN_STMNT \ + ft_mem_free( memory, (ptr) ); \ + (ptr) = NULL; \ + FT_END_STMNT + +#define FT_MEM_NEW( ptr ) \ + FT_MEM_ALLOC( ptr, sizeof ( *(ptr) ) ) + +#define FT_MEM_REALLOC( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, 1, \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_QALLOC( ptr, size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qalloc( memory, (size), &error ) ) + +#define FT_MEM_QNEW( ptr ) \ + FT_MEM_QALLOC( ptr, sizeof ( *(ptr) ) ) + +#define FT_MEM_QREALLOC( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, 1, \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_QRENEW_ARRAY( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, sizeof ( *(ptr) ), \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_ALLOC_MULT( ptr, count, item_size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, (item_size), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, (itmsz), \ + (oldcnt), (newcnt), \ + (ptr), &error ) ) + +#define FT_MEM_QALLOC_MULT( ptr, count, item_size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, (item_size), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, (itmsz), \ + (oldcnt), (newcnt), \ + (ptr), &error ) ) + + +#define FT_MEM_SET_ERROR( cond ) ( (cond), error != 0 ) + + +#define FT_MEM_SET( dest, byte, count ) ft_memset( dest, byte, count ) + +#define FT_MEM_COPY( dest, source, count ) ft_memcpy( dest, source, count ) + +#define FT_MEM_MOVE( dest, source, count ) ft_memmove( dest, source, count ) + + +#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count ) + +#define FT_ZERO( p ) FT_MEM_ZERO( p, sizeof ( *(p) ) ) + + +#define FT_ARRAY_ZERO( dest, count ) \ + FT_MEM_ZERO( dest, (count) * sizeof ( *(dest) ) ) + +#define FT_ARRAY_COPY( dest, source, count ) \ + FT_MEM_COPY( dest, source, (count) * sizeof ( *(dest) ) ) + +#define FT_ARRAY_MOVE( dest, source, count ) \ + FT_MEM_MOVE( dest, source, (count) * sizeof ( *(dest) ) ) + + + /* + * Return the maximum number of addressable elements in an array. + * We limit ourselves to INT_MAX, rather than UINT_MAX, to avoid + * any problems. + */ +#define FT_ARRAY_MAX( ptr ) ( FT_INT_MAX / sizeof ( *(ptr) ) ) + +#define FT_ARRAY_CHECK( ptr, count ) ( (count) <= FT_ARRAY_MAX( ptr ) ) + + + /*************************************************************************/ + /* */ + /* The following functions macros expect that their pointer argument is */ + /* _typed_ in order to automatically compute array element sizes. */ + /* */ + +#define FT_MEM_NEW_ARRAY( ptr, count ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, sizeof ( *(ptr) ), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_RENEW_ARRAY( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, sizeof ( *(ptr) ), \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_QNEW_ARRAY( ptr, count ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, sizeof ( *(ptr) ), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_QRENEW_ARRAY( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, sizeof ( *(ptr) ), \ + (cursz), (newsz), \ + (ptr), &error ) ) + + +#define FT_ALLOC( ptr, size ) \ + FT_MEM_SET_ERROR( FT_MEM_ALLOC( ptr, size ) ) + +#define FT_REALLOC( ptr, cursz, newsz ) \ + FT_MEM_SET_ERROR( FT_MEM_REALLOC( ptr, cursz, newsz ) ) + +#define FT_ALLOC_MULT( ptr, count, item_size ) \ + FT_MEM_SET_ERROR( FT_MEM_ALLOC_MULT( ptr, count, item_size ) ) + +#define FT_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \ + FT_MEM_SET_ERROR( FT_MEM_REALLOC_MULT( ptr, oldcnt, \ + newcnt, itmsz ) ) + +#define FT_QALLOC( ptr, size ) \ + FT_MEM_SET_ERROR( FT_MEM_QALLOC( ptr, size ) ) + +#define FT_QREALLOC( ptr, cursz, newsz ) \ + FT_MEM_SET_ERROR( FT_MEM_QREALLOC( ptr, cursz, newsz ) ) + +#define FT_QALLOC_MULT( ptr, count, item_size ) \ + FT_MEM_SET_ERROR( FT_MEM_QALLOC_MULT( ptr, count, item_size ) ) + +#define FT_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \ + FT_MEM_SET_ERROR( FT_MEM_QREALLOC_MULT( ptr, oldcnt, \ + newcnt, itmsz ) ) + +#define FT_FREE( ptr ) FT_MEM_FREE( ptr ) + +#define FT_NEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_NEW( ptr ) ) + +#define FT_NEW_ARRAY( ptr, count ) \ + FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) ) + +#define FT_RENEW_ARRAY( ptr, curcnt, newcnt ) \ + FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) ) + +#define FT_QNEW( ptr ) \ + FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) ) + +#define FT_QNEW_ARRAY( ptr, count ) \ + FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) ) + +#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \ + FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) ) + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE( FT_Error ) + FT_Alloc( FT_Memory memory, + FT_Long size, + void* *P ); + + FT_BASE( FT_Error ) + FT_QAlloc( FT_Memory memory, + FT_Long size, + void* *p ); + + FT_BASE( FT_Error ) + FT_Realloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *P ); + + FT_BASE( FT_Error ) + FT_QRealloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *p ); + + FT_BASE( void ) + FT_Free( FT_Memory memory, + void* *P ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + FT_BASE( FT_Pointer ) + ft_mem_strdup( FT_Memory memory, + const char* str, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_dup( FT_Memory memory, + const void* address, + FT_ULong size, + FT_Error *p_error ); + +#define FT_MEM_STRDUP( dst, str ) \ + (dst) = (char*)ft_mem_strdup( memory, (const char*)(str), &error ) + +#define FT_STRDUP( dst, str ) \ + FT_MEM_SET_ERROR( FT_MEM_STRDUP( dst, str ) ) + +#define FT_MEM_DUP( dst, address, size ) \ + (dst) = ft_mem_dup( memory, (address), (FT_ULong)(size), &error ) + +#define FT_DUP( dst, address, size ) \ + FT_MEM_SET_ERROR( FT_MEM_DUP( dst, address, size ) ) + + + /* Return >= 1 if a truncation occurs. */ + /* Return 0 if the source string fits the buffer. */ + /* This is *not* the same as strlcpy(). */ + FT_BASE( FT_Int ) + ft_mem_strcpyn( char* dst, + const char* src, + FT_ULong size ); + +#define FT_STRCPYN( dst, src, size ) \ + ft_mem_strcpyn( (char*)dst, (const char*)(src), (FT_ULong)(size) ) + + /* */ + + +FT_END_HEADER + +#endif /* __FTMEMORY_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftobjs.h b/uppsrc/plugin/FT_fontsys/internal/ftobjs.h new file mode 100644 index 000000000..715b3b261 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftobjs.h @@ -0,0 +1,1428 @@ +/***************************************************************************/ +/* */ +/* ftobjs.h */ +/* */ +/* The FreeType private base classes (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file contains the definition of all internal FreeType classes. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTOBJS_H__ +#define __FTOBJS_H__ + +#include <freetype/ft2build.h> +#include FT_RENDER_H +#include FT_SIZES_H +#include FT_LCD_FILTER_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_GLYPH_LOADER_H +#include FT_INTERNAL_DRIVER_H +#include FT_INTERNAL_AUTOHINT_H +#include FT_INTERNAL_SERVICE_H +#include FT_INTERNAL_PIC_H + +#ifdef FT_CONFIG_OPTION_INCREMENTAL +#include FT_INCREMENTAL_H +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* Some generic definitions. */ + /* */ +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef NULL +#define NULL (void*)0 +#endif + + + /*************************************************************************/ + /* */ + /* The min and max functions missing in C. As usual, be careful not to */ + /* write things like FT_MIN( a++, b++ ) to avoid side effects. */ + /* */ +#define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) ) +#define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) ) + +#define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) ) + + +#define FT_PAD_FLOOR( x, n ) ( (x) & ~((n)-1) ) +#define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + ((n)/2), n ) +#define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + ((n)-1), n ) + +#define FT_PIX_FLOOR( x ) ( (x) & ~63 ) +#define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 ) +#define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 ) + + + /* + * Return the highest power of 2 that is <= value; this correspond to + * the highest bit in a given 32-bit value. + */ + FT_BASE( FT_UInt32 ) + ft_highpow2( FT_UInt32 value ); + + + /* + * character classification functions -- since these are used to parse + * font files, we must not use those in <ctypes.h> which are + * locale-dependent + */ +#define ft_isdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U ) + +#define ft_isxdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U || \ + ( (unsigned)(x) - 'a' ) < 6U || \ + ( (unsigned)(x) - 'A' ) < 6U ) + + /* the next two macros assume ASCII representation */ +#define ft_isupper( x ) ( ( (unsigned)(x) - 'A' ) < 26U ) +#define ft_islower( x ) ( ( (unsigned)(x) - 'a' ) < 26U ) + +#define ft_isalpha( x ) ( ft_isupper( x ) || ft_islower( x ) ) +#define ft_isalnum( x ) ( ft_isdigit( x ) || ft_isalpha( x ) ) + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** C H A R M A P S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* handle to internal charmap object */ + typedef struct FT_CMapRec_* FT_CMap; + + /* handle to charmap class structure */ + typedef const struct FT_CMap_ClassRec_* FT_CMap_Class; + + /* internal charmap object structure */ + typedef struct FT_CMapRec_ + { + FT_CharMapRec charmap; + FT_CMap_Class clazz; + + } FT_CMapRec; + + /* typecase any pointer to a charmap handle */ +#define FT_CMAP( x ) ((FT_CMap)( x )) + + /* obvious macros */ +#define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id +#define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id +#define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding +#define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face + + + /* class method definitions */ + typedef FT_Error + (*FT_CMap_InitFunc)( FT_CMap cmap, + FT_Pointer init_data ); + + typedef void + (*FT_CMap_DoneFunc)( FT_CMap cmap ); + + typedef FT_UInt + (*FT_CMap_CharIndexFunc)( FT_CMap cmap, + FT_UInt32 char_code ); + + typedef FT_UInt + (*FT_CMap_CharNextFunc)( FT_CMap cmap, + FT_UInt32 *achar_code ); + + typedef FT_UInt + (*FT_CMap_CharVarIndexFunc)( FT_CMap cmap, + FT_CMap unicode_cmap, + FT_UInt32 char_code, + FT_UInt32 variant_selector ); + + typedef FT_Bool + (*FT_CMap_CharVarIsDefaultFunc)( FT_CMap cmap, + FT_UInt32 char_code, + FT_UInt32 variant_selector ); + + typedef FT_UInt32 * + (*FT_CMap_VariantListFunc)( FT_CMap cmap, + FT_Memory mem ); + + typedef FT_UInt32 * + (*FT_CMap_CharVariantListFunc)( FT_CMap cmap, + FT_Memory mem, + FT_UInt32 char_code ); + + typedef FT_UInt32 * + (*FT_CMap_VariantCharListFunc)( FT_CMap cmap, + FT_Memory mem, + FT_UInt32 variant_selector ); + + + typedef struct FT_CMap_ClassRec_ + { + FT_ULong size; + FT_CMap_InitFunc init; + FT_CMap_DoneFunc done; + FT_CMap_CharIndexFunc char_index; + FT_CMap_CharNextFunc char_next; + + /* Subsequent entries are special ones for format 14 -- the variant */ + /* selector subtable which behaves like no other */ + + FT_CMap_CharVarIndexFunc char_var_index; + FT_CMap_CharVarIsDefaultFunc char_var_default; + FT_CMap_VariantListFunc variant_list; + FT_CMap_CharVariantListFunc charvariant_list; + FT_CMap_VariantCharListFunc variantchar_list; + + } FT_CMap_ClassRec; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DECLARE_CMAP_CLASS(class_) \ + FT_CALLBACK_TABLE const FT_CMap_ClassRec class_; + +#define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_CMap_ClassRec class_ = \ + { \ + size_, init_, done_, char_index_, char_next_, char_var_index_, \ + char_var_default_, variant_list_, charvariant_list_, variantchar_list_ \ + }; +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DECLARE_CMAP_CLASS(class_) \ + void FT_Init_Class_##class_( FT_Library library, FT_CMap_ClassRec* clazz); + +#define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_CMap_ClassRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->size = size_; \ + clazz->init = init_; \ + clazz->done = done_; \ + clazz->char_index = char_index_; \ + clazz->char_next = char_next_; \ + clazz->char_var_index = char_var_index_; \ + clazz->char_var_default = char_var_default_; \ + clazz->variant_list = variant_list_; \ + clazz->charvariant_list = charvariant_list_; \ + clazz->variantchar_list = variantchar_list_; \ + } +#endif /* FT_CONFIG_OPTION_PIC */ + + /* create a new charmap and add it to charmap->face */ + FT_BASE( FT_Error ) + FT_CMap_New( FT_CMap_Class clazz, + FT_Pointer init_data, + FT_CharMap charmap, + FT_CMap *acmap ); + + /* destroy a charmap and remove it from face's list */ + FT_BASE( void ) + FT_CMap_Done( FT_CMap cmap ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Face_InternalRec */ + /* */ + /* <Description> */ + /* This structure contains the internal fields of each FT_Face */ + /* object. These fields may change between different releases of */ + /* FreeType. */ + /* */ + /* <Fields> */ + /* max_points :: */ + /* The maximal number of points used to store the vectorial outline */ + /* of any glyph in this face. If this value cannot be known in */ + /* advance, or if the face isn't scalable, this should be set to 0. */ + /* Only relevant for scalable formats. */ + /* */ + /* max_contours :: */ + /* The maximal number of contours used to store the vectorial */ + /* outline of any glyph in this face. If this value cannot be */ + /* known in advance, or if the face isn't scalable, this should be */ + /* set to 0. Only relevant for scalable formats. */ + /* */ + /* transform_matrix :: */ + /* A 2x2 matrix of 16.16 coefficients used to transform glyph */ + /* outlines after they are loaded from the font. Only used by the */ + /* convenience functions. */ + /* */ + /* transform_delta :: */ + /* A translation vector used to transform glyph outlines after they */ + /* are loaded from the font. Only used by the convenience */ + /* functions. */ + /* */ + /* transform_flags :: */ + /* Some flags used to classify the transform. Only used by the */ + /* convenience functions. */ + /* */ + /* services :: */ + /* A cache for frequently used services. It should be only */ + /* accessed with the macro `FT_FACE_LOOKUP_SERVICE'. */ + /* */ + /* incremental_interface :: */ + /* If non-null, the interface through which glyph data and metrics */ + /* are loaded incrementally for faces that do not provide all of */ + /* this data when first opened. This field exists only if */ + /* @FT_CONFIG_OPTION_INCREMENTAL is defined. */ + /* */ + /* ignore_unpatented_hinter :: */ + /* This boolean flag instructs the glyph loader to ignore the */ + /* native font hinter, if one is found. This is exclusively used */ + /* in the case when the unpatented hinter is compiled within the */ + /* library. */ + /* */ + /* refcount :: */ + /* A counter initialized to~1 at the time an @FT_Face structure is */ + /* created. @FT_Reference_Face increments this counter, and */ + /* @FT_Done_Face only destroys a face if the counter is~1, */ + /* otherwise it simply decrements it. */ + /* */ + typedef struct FT_Face_InternalRec_ + { +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_UShort reserved1; + FT_Short reserved2; +#endif + FT_Matrix transform_matrix; + FT_Vector transform_delta; + FT_Int transform_flags; + + FT_ServiceCacheRec services; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Incremental_InterfaceRec* incremental_interface; +#endif + + FT_Bool ignore_unpatented_hinter; + FT_UInt refcount; + + } FT_Face_InternalRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Slot_InternalRec */ + /* */ + /* <Description> */ + /* This structure contains the internal fields of each FT_GlyphSlot */ + /* object. These fields may change between different releases of */ + /* FreeType. */ + /* */ + /* <Fields> */ + /* loader :: The glyph loader object used to load outlines */ + /* into the glyph slot. */ + /* */ + /* flags :: Possible values are zero or */ + /* FT_GLYPH_OWN_BITMAP. The latter indicates */ + /* that the FT_GlyphSlot structure owns the */ + /* bitmap buffer. */ + /* */ + /* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */ + /* must be transformed through a specific */ + /* font transformation. This is _not_ the same */ + /* as the face transform set through */ + /* FT_Set_Transform(). */ + /* */ + /* glyph_matrix :: The 2x2 matrix corresponding to the glyph */ + /* transformation, if necessary. */ + /* */ + /* glyph_delta :: The 2d translation vector corresponding to */ + /* the glyph transformation, if necessary. */ + /* */ + /* glyph_hints :: Format-specific glyph hints management. */ + /* */ + +#define FT_GLYPH_OWN_BITMAP 0x1 + + typedef struct FT_Slot_InternalRec_ + { + FT_GlyphLoader loader; + FT_UInt flags; + FT_Bool glyph_transformed; + FT_Matrix glyph_matrix; + FT_Vector glyph_delta; + void* glyph_hints; + + } FT_GlyphSlot_InternalRec; + + +#if 0 + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_InternalRec */ + /* */ + /* <Description> */ + /* This structure contains the internal fields of each FT_Size */ + /* object. Currently, it's empty. */ + /* */ + /*************************************************************************/ + + typedef struct FT_Size_InternalRec_ + { + /* empty */ + + } FT_Size_InternalRec; + +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M O D U L E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_ModuleRec */ + /* */ + /* <Description> */ + /* A module object instance. */ + /* */ + /* <Fields> */ + /* clazz :: A pointer to the module's class. */ + /* */ + /* library :: A handle to the parent library object. */ + /* */ + /* memory :: A handle to the memory manager. */ + /* */ + /* generic :: A generic structure for user-level extensibility (?). */ + /* */ + typedef struct FT_ModuleRec_ + { + FT_Module_Class* clazz; + FT_Library library; + FT_Memory memory; + FT_Generic generic; + + } FT_ModuleRec; + + + /* typecast an object to a FT_Module */ +#define FT_MODULE( x ) ((FT_Module)( x )) +#define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz +#define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library +#define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory + + +#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_FONT_DRIVER ) + +#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_RENDERER ) + +#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_HINTER ) + +#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_STYLER ) + +#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_DRIVER_SCALABLE ) + +#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_DRIVER_NO_OUTLINES ) + +#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_DRIVER_HAS_HINTER ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Module_Interface */ + /* */ + /* <Description> */ + /* Finds a module and returns its specific interface as a typeless */ + /* pointer. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object. */ + /* */ + /* module_name :: The module's name (as an ASCII string). */ + /* */ + /* <Return> */ + /* A module-specific interface if available, 0 otherwise. */ + /* */ + /* <Note> */ + /* You should better be familiar with FreeType internals to know */ + /* which module to look for, and what its interface is :-) */ + /* */ + FT_BASE( const void* ) + FT_Get_Module_Interface( FT_Library library, + const char* mod_name ); + + FT_BASE( FT_Pointer ) + ft_module_get_service( FT_Module module, + const char* service_id ); + + /* */ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* a few macros used to perform easy typecasts with minimal brain damage */ + +#define FT_FACE( x ) ((FT_Face)(x)) +#define FT_SIZE( x ) ((FT_Size)(x)) +#define FT_SLOT( x ) ((FT_GlyphSlot)(x)) + +#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver +#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library +#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory +#define FT_FACE_STREAM( x ) FT_FACE( x )->stream + +#define FT_SIZE_FACE( x ) FT_SIZE( x )->face +#define FT_SLOT_FACE( x ) FT_SLOT( x )->face + +#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph +#define FT_FACE_SIZE( x ) FT_FACE( x )->size + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_GlyphSlot */ + /* */ + /* <Description> */ + /* It is sometimes useful to have more than one glyph slot for a */ + /* given face object. This function is used to create additional */ + /* slots. All of them are automatically discarded when the face is */ + /* destroyed. */ + /* */ + /* <Input> */ + /* face :: A handle to a parent face object. */ + /* */ + /* <Output> */ + /* aslot :: A handle to a new glyph slot object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_BASE( FT_Error ) + FT_New_GlyphSlot( FT_Face face, + FT_GlyphSlot *aslot ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_GlyphSlot */ + /* */ + /* <Description> */ + /* Destroys a given glyph slot. Remember however that all slots are */ + /* automatically destroyed with its parent. Using this function is */ + /* not always mandatory. */ + /* */ + /* <Input> */ + /* slot :: A handle to a target glyph slot. */ + /* */ + FT_BASE( void ) + FT_Done_GlyphSlot( FT_GlyphSlot slot ); + + /* */ + +#define FT_REQUEST_WIDTH( req ) \ + ( (req)->horiResolution \ + ? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \ + : (req)->width ) + +#define FT_REQUEST_HEIGHT( req ) \ + ( (req)->vertResolution \ + ? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \ + : (req)->height ) + + + /* Set the metrics according to a bitmap strike. */ + FT_BASE( void ) + FT_Select_Metrics( FT_Face face, + FT_ULong strike_index ); + + + /* Set the metrics according to a size request. */ + FT_BASE( void ) + FT_Request_Metrics( FT_Face face, + FT_Size_Request req ); + + + /* Match a size request against `available_sizes'. */ + FT_BASE( FT_Error ) + FT_Match_Size( FT_Face face, + FT_Size_Request req, + FT_Bool ignore_width, + FT_ULong* size_index ); + + + /* Use the horizontal metrics to synthesize the vertical metrics. */ + /* If `advance' is zero, it is also synthesized. */ + FT_BASE( void ) + ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics, + FT_Pos advance ); + + + /* Free the bitmap of a given glyphslot when needed (i.e., only when it */ + /* was allocated with ft_glyphslot_alloc_bitmap). */ + FT_BASE( void ) + ft_glyphslot_free_bitmap( FT_GlyphSlot slot ); + + + /* Allocate a new bitmap buffer in a glyph slot. */ + FT_BASE( FT_Error ) + ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, + FT_ULong size ); + + + /* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */ + /* will not be freed by a later call to ft_glyphslot_free_bitmap. */ + FT_BASE( void ) + ft_glyphslot_set_bitmap( FT_GlyphSlot slot, + FT_Byte* buffer ); + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** R E N D E R E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#define FT_RENDERER( x ) ((FT_Renderer)( x )) +#define FT_GLYPH( x ) ((FT_Glyph)( x )) +#define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x )) +#define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x )) + + + typedef struct FT_RendererRec_ + { + FT_ModuleRec root; + FT_Renderer_Class* clazz; + FT_Glyph_Format glyph_format; + FT_Glyph_Class glyph_class; + + FT_Raster raster; + FT_Raster_Render_Func raster_render; + FT_Renderer_RenderFunc render; + + } FT_RendererRec; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** F O N T D R I V E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* typecast a module into a driver easily */ +#define FT_DRIVER( x ) ((FT_Driver)(x)) + + /* typecast a module as a driver, and get its driver class */ +#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_DriverRec */ + /* */ + /* <Description> */ + /* The root font driver class. A font driver is responsible for */ + /* managing and loading font files of a given format. */ + /* */ + /* <Fields> */ + /* root :: Contains the fields of the root module class. */ + /* */ + /* clazz :: A pointer to the font driver's class. Note that */ + /* this is NOT root.clazz. `class' wasn't used */ + /* as it is a reserved word in C++. */ + /* */ + /* faces_list :: The list of faces currently opened by this */ + /* driver. */ + /* */ + /* extensions :: A typeless pointer to the driver's extensions */ + /* registry, if they are supported through the */ + /* configuration macro FT_CONFIG_OPTION_EXTENSIONS. */ + /* */ + /* glyph_loader :: The glyph loader for all faces managed by this */ + /* driver. This object isn't defined for unscalable */ + /* formats. */ + /* */ + typedef struct FT_DriverRec_ + { + FT_ModuleRec root; + FT_Driver_Class clazz; + + FT_ListRec faces_list; + void* extensions; + + FT_GlyphLoader glyph_loader; + + } FT_DriverRec; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** L I B R A R I E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* This hook is used by the TrueType debugger. It must be set to an */ + /* alternate truetype bytecode interpreter function. */ +#define FT_DEBUG_HOOK_TRUETYPE 0 + + + /* Set this debug hook to a non-null pointer to force unpatented hinting */ + /* for all faces when both TT_USE_BYTECODE_INTERPRETER and */ + /* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */ + /* during debugging. */ +#define FT_DEBUG_HOOK_UNPATENTED_HINTING 1 + + + typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap, + FT_Render_Mode render_mode, + FT_Library library ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_LibraryRec */ + /* */ + /* <Description> */ + /* The FreeType library class. This is the root of all FreeType */ + /* data. Use FT_New_Library() to create a library object, and */ + /* FT_Done_Library() to discard it and all child objects. */ + /* */ + /* <Fields> */ + /* memory :: The library's memory object. Manages memory */ + /* allocation. */ + /* */ + /* generic :: Client data variable. Used to extend the */ + /* Library class by higher levels and clients. */ + /* */ + /* version_major :: The major version number of the library. */ + /* */ + /* version_minor :: The minor version number of the library. */ + /* */ + /* version_patch :: The current patch level of the library. */ + /* */ + /* num_modules :: The number of modules currently registered */ + /* within this library. This is set to 0 for new */ + /* libraries. New modules are added through the */ + /* FT_Add_Module() API function. */ + /* */ + /* modules :: A table used to store handles to the currently */ + /* registered modules. Note that each font driver */ + /* contains a list of its opened faces. */ + /* */ + /* renderers :: The list of renderers currently registered */ + /* within the library. */ + /* */ + /* cur_renderer :: The current outline renderer. This is a */ + /* shortcut used to avoid parsing the list on */ + /* each call to FT_Outline_Render(). It is a */ + /* handle to the current renderer for the */ + /* FT_GLYPH_FORMAT_OUTLINE format. */ + /* */ + /* auto_hinter :: XXX */ + /* */ + /* raster_pool :: The raster object's render pool. This can */ + /* ideally be changed dynamically at run-time. */ + /* */ + /* raster_pool_size :: The size of the render pool in bytes. */ + /* */ + /* debug_hooks :: XXX */ + /* */ + /* lcd_filter :: If subpixel rendering is activated, the */ + /* selected LCD filter mode. */ + /* */ + /* lcd_extra :: If subpixel rendering is activated, the number */ + /* of extra pixels needed for the LCD filter. */ + /* */ + /* lcd_weights :: If subpixel rendering is activated, the LCD */ + /* filter weights, if any. */ + /* */ + /* lcd_filter_func :: If subpixel rendering is activated, the LCD */ + /* filtering callback function. */ + /* */ + /* pic_container :: Contains global structs and tables, instead */ + /* of defining them globallly. */ + /* */ + /* refcount :: A counter initialized to~1 at the time an */ + /* @FT_Library structure is created. */ + /* @FT_Reference_Library increments this counter, */ + /* and @FT_Done_Library only destroys a library */ + /* if the counter is~1, otherwise it simply */ + /* decrements it. */ + /* */ + typedef struct FT_LibraryRec_ + { + FT_Memory memory; /* library's memory manager */ + + FT_Generic generic; + + FT_Int version_major; + FT_Int version_minor; + FT_Int version_patch; + + FT_UInt num_modules; + FT_Module modules[FT_MAX_MODULES]; /* module objects */ + + FT_ListRec renderers; /* list of renderers */ + FT_Renderer cur_renderer; /* current outline renderer */ + FT_Module auto_hinter; + + FT_Byte* raster_pool; /* scan-line conversion */ + /* render pool */ + FT_ULong raster_pool_size; /* size of render pool in bytes */ + + FT_DebugHook_Func debug_hooks[4]; + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + FT_LcdFilter lcd_filter; + FT_Int lcd_extra; /* number of extra pixels */ + FT_Byte lcd_weights[7]; /* filter weights, if any */ + FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */ +#endif + +#ifdef FT_CONFIG_OPTION_PIC + FT_PIC_Container pic_container; +#endif + + FT_UInt refcount; + + } FT_LibraryRec; + + + FT_BASE( FT_Renderer ) + FT_Lookup_Renderer( FT_Library library, + FT_Glyph_Format format, + FT_ListNode* node ); + + FT_BASE( FT_Error ) + FT_Render_Glyph_Internal( FT_Library library, + FT_GlyphSlot slot, + FT_Render_Mode render_mode ); + + typedef const char* + (*FT_Face_GetPostscriptNameFunc)( FT_Face face ); + + typedef FT_Error + (*FT_Face_GetGlyphNameFunc)( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ); + + typedef FT_UInt + (*FT_Face_GetGlyphNameIndexFunc)( FT_Face face, + FT_String* glyph_name ); + + +#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Memory */ + /* */ + /* <Description> */ + /* Creates a new memory object. */ + /* */ + /* <Return> */ + /* A pointer to the new memory object. 0 in case of error. */ + /* */ + FT_BASE( FT_Memory ) + FT_New_Memory( void ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Memory */ + /* */ + /* <Description> */ + /* Discards memory manager. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory manager. */ + /* */ + FT_BASE( void ) + FT_Done_Memory( FT_Memory memory ); + +#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */ + + + /* Define default raster's interface. The default raster is located in */ + /* `src/base/ftraster.c'. */ + /* */ + /* Client applications can register new rasters through the */ + /* FT_Set_Raster() API. */ + +#ifndef FT_NO_DEFAULT_RASTER + FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster; +#endif + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** PIC-Support Macros for ftimage.h ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_OUTLINE_FUNCS */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Outline_Funcs struct. */ + /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ + /* called with a pre-allocated stracture to be filled. */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ + cubic_to_, shift_, delta_) \ + static const FT_Outline_Funcs class_ = \ + { \ + move_to_, line_to_, conic_to_, cubic_to_, shift_, delta_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ + cubic_to_, shift_, delta_) \ + static FT_Error \ + Init_Class_##class_( FT_Outline_Funcs* clazz ) \ + { \ + clazz->move_to = move_to_; \ + clazz->line_to = line_to_; \ + clazz->conic_to = conic_to_; \ + clazz->cubic_to = cubic_to_; \ + clazz->shift = shift_; \ + clazz->delta = delta_; \ + return FT_Err_Ok; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_RASTER_FUNCS */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Raster_Funcs struct. */ + /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ + /* called with a pre-allocated stracture to be filled. */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \ + raster_reset_, raster_set_mode_, \ + raster_render_, raster_done_) \ + const FT_Raster_Funcs class_ = \ + { \ + glyph_format_, raster_new_, raster_reset_, \ + raster_set_mode_, raster_render_, raster_done_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \ + raster_reset_, raster_set_mode_, raster_render_, raster_done_) \ + void \ + FT_Init_Class_##class_( FT_Raster_Funcs* clazz ) \ + { \ + clazz->glyph_format = glyph_format_; \ + clazz->raster_new = raster_new_; \ + clazz->raster_reset = raster_reset_; \ + clazz->raster_set_mode = raster_set_mode_; \ + clazz->raster_render = raster_render_; \ + clazz->raster_done = raster_done_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** PIC-Support Macros for ftrender.h ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_GLYPH */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Glyph_Class struct. */ + /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ + /* called with a pre-allocated stracture to be filled. */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \ + transform_, bbox_, prepare_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Glyph_Class class_ = \ + { \ + size_, format_, init_, done_, copy_, transform_, bbox_, prepare_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \ + transform_, bbox_, prepare_) \ + void \ + FT_Init_Class_##class_( FT_Glyph_Class* clazz ) \ + { \ + clazz->glyph_size = size_; \ + clazz->glyph_format = format_; \ + clazz->glyph_init = init_; \ + clazz->glyph_done = done_; \ + clazz->glyph_copy = copy_; \ + clazz->glyph_transform = transform_; \ + clazz->glyph_bbox = bbox_; \ + clazz->glyph_prepare = prepare_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DECLARE_RENDERER */ + /* */ + /* <Description> */ + /* Used to create a forward declaration of a */ + /* FT_Renderer_Class stract instance. */ + /* */ + /* <Macro> */ + /* FT_DEFINE_RENDERER */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Renderer_Class struct. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated stracture is returned.*/ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* fcinit.c (ft_create_default_module_classes) already contains */ + /* a mechanism to call these functions for the default modules */ + /* described in ftmodule.h */ + /* */ + /* Notice that the created Create and Destroy functions call */ + /* pic_init and pic_free function to allow you to manually allocate */ + /* and initialize any additional global data, like module specific */ + /* interface, and put them in the global pic container defined in */ + /* ftpic.h. if you don't need them just implement the functions as */ + /* empty to resolve the link error. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DECLARE_RENDERER(class_) \ + FT_EXPORT_VAR( const FT_Renderer_Class ) class_; + +#define FT_DEFINE_RENDERER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + glyph_format_, render_glyph_, transform_glyph_, \ + get_glyph_cbox_, set_mode_, raster_class_ ) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Renderer_Class class_ = \ + { \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \ + interface_,init_,done_,get_interface_) \ + glyph_format_, \ + \ + render_glyph_, \ + transform_glyph_, \ + get_glyph_cbox_, \ + set_mode_, \ + \ + raster_class_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DECLARE_RENDERER(class_) FT_DECLARE_MODULE(class_) + +#define FT_DEFINE_RENDERER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + glyph_format_, render_glyph_, transform_glyph_, \ + get_glyph_cbox_, set_mode_, raster_class_ ) \ + void class_##_pic_free( FT_Library library ); \ + FT_Error class_##_pic_init( FT_Library library ); \ + \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ) \ + { \ + FT_Renderer_Class* rclazz = (FT_Renderer_Class*)clazz; \ + FT_Memory memory = library->memory; \ + class_##_pic_free( library ); \ + if ( rclazz ) \ + FT_FREE( rclazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ) \ + { \ + FT_Renderer_Class* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ + return error; \ + \ + error = class_##_pic_init( library ); \ + if(error) \ + { \ + FT_FREE( clazz ); \ + return error; \ + } \ + \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \ + interface_,init_,done_,get_interface_) \ + \ + clazz->glyph_format = glyph_format_; \ + \ + clazz->render_glyph = render_glyph_; \ + clazz->transform_glyph = transform_glyph_; \ + clazz->get_glyph_cbox = get_glyph_cbox_; \ + clazz->set_mode = set_mode_; \ + \ + clazz->raster_class = raster_class_; \ + \ + *output_class = (FT_Module_Class*)clazz; \ + return FT_Err_Ok; \ + } + + + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** PIC-Support Macros for ftmodapi.h ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifdef FT_CONFIG_OPTION_PIC + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Creator */ + /* */ + /* <Description> */ + /* A function used to create (allocate) a new module class object. */ + /* The object's members are initialized, but the module itself is */ + /* not. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory manager. */ + /* output_class :: Initialized with the newly allocated class. */ + /* */ + typedef FT_Error + (*FT_Module_Creator)( FT_Memory memory, + FT_Module_Class** output_class ); + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Destroyer */ + /* */ + /* <Description> */ + /* A function used to destroy (deallocate) a module class object. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory manager. */ + /* clazz :: Module class to destroy. */ + /* */ + typedef void + (*FT_Module_Destroyer)( FT_Memory memory, + FT_Module_Class* clazz ); + +#endif + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DECLARE_MODULE */ + /* */ + /* <Description> */ + /* Used to create a forward declaration of a */ + /* FT_Module_Class stract instance. */ + /* */ + /* <Macro> */ + /* FT_DEFINE_MODULE */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Module_Class struct. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated stracture is returned.*/ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* fcinit.c (ft_create_default_module_classes) already contains */ + /* a mechanism to call these functions for the default modules */ + /* described in ftmodule.h */ + /* */ + /* Notice that the created Create and Destroy functions call */ + /* pic_init and pic_free function to allow you to manually allocate */ + /* and initialize any additional global data, like module specific */ + /* interface, and put them in the global pic container defined in */ + /* ftpic.h. if you don't need them just implement the functions as */ + /* empty to resolve the link error. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ + /* <Macro> */ + /* FT_DEFINE_ROOT_MODULE */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Module_Class struct inside */ + /* another stract that contains it or in a function that initializes */ + /* that containing stract */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DECLARE_MODULE(class_) \ + FT_CALLBACK_TABLE \ + const FT_Module_Class class_; \ + +#define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + { \ + flags_, \ + size_, \ + \ + name_, \ + version_, \ + requires_, \ + \ + interface_, \ + \ + init_, \ + done_, \ + get_interface_, \ + }, + +#define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Module_Class class_ = \ + { \ + flags_, \ + size_, \ + \ + name_, \ + version_, \ + requires_, \ + \ + interface_, \ + \ + init_, \ + done_, \ + get_interface_, \ + }; + + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DECLARE_MODULE(class_) \ + FT_Error FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ); \ + void FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ); + +#define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + clazz->root.module_flags = flags_; \ + clazz->root.module_size = size_; \ + clazz->root.module_name = name_; \ + clazz->root.module_version = version_; \ + clazz->root.module_requires = requires_; \ + \ + clazz->root.module_interface = interface_; \ + \ + clazz->root.module_init = init_; \ + clazz->root.module_done = done_; \ + clazz->root.get_interface = get_interface_; + +#define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + void class_##_pic_free( FT_Library library ); \ + FT_Error class_##_pic_init( FT_Library library ); \ + \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + class_##_pic_free( library ); \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ) \ + { \ + FT_Memory memory = library->memory; \ + FT_Module_Class* clazz; \ + FT_Error error; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ + return error; \ + error = class_##_pic_init( library ); \ + if(error) \ + { \ + FT_FREE( clazz ); \ + return error; \ + } \ + \ + clazz->module_flags = flags_; \ + clazz->module_size = size_; \ + clazz->module_name = name_; \ + clazz->module_version = version_; \ + clazz->module_requires = requires_; \ + \ + clazz->module_interface = interface_; \ + \ + clazz->module_init = init_; \ + clazz->module_done = done_; \ + clazz->get_interface = get_interface_; \ + \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +FT_END_HEADER + +#endif /* __FTOBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftpic.h b/uppsrc/plugin/FT_fontsys/internal/ftpic.h new file mode 100644 index 000000000..1b31957d7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftpic.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* ftpic.h */ +/* */ +/* The FreeType position independent code services (declaration). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Modules that ordinarily have const global data that need address */ + /* can instead define pointers here. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTPIC_H__ +#define __FTPIC_H__ + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC + + typedef struct FT_PIC_Container_ + { + /* pic containers for base */ + void* base; + /* pic containers for modules */ + void* autofit; + void* cff; + void* pshinter; + void* psnames; + void* raster; + void* sfnt; + void* smooth; + void* truetype; + } FT_PIC_Container; + + /* Initialize the various function tables, structs, etc. stored in the container. */ + FT_BASE( FT_Error ) + ft_pic_container_init( FT_Library library ); + + + /* Destroy the contents of the container. */ + FT_BASE( void ) + ft_pic_container_destroy( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __FTPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftrfork.h b/uppsrc/plugin/FT_fontsys/internal/ftrfork.h new file mode 100644 index 000000000..47dad7d00 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftrfork.h @@ -0,0 +1,196 @@ +/***************************************************************************/ +/* */ +/* ftrfork.h */ +/* */ +/* Embedded resource forks accessor (specification). */ +/* */ +/* Copyright 2004, 2006, 2007 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* Development of the code in this file is support of */ +/* Information-technology Promotion Agency, Japan. */ +/***************************************************************************/ + + +#ifndef __FTRFORK_H__ +#define __FTRFORK_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + /* Number of guessing rules supported in `FT_Raccess_Guess'. */ + /* Don't forget to increment the number if you add a new guessing rule. */ +#define FT_RACCESS_N_RULES 9 + + + /* A structure to describe a reference in a resource by its resource ID */ + /* and internal offset. The `POST' resource expects to be concatenated */ + /* by the order of resource IDs instead of its appearance in the file. */ + + typedef struct FT_RFork_Ref_ + { + FT_UShort res_id; + FT_ULong offset; + + } FT_RFork_Ref; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Raccess_Guess */ + /* */ + /* <Description> */ + /* Guess a file name and offset where the actual resource fork is */ + /* stored. The macro FT_RACCESS_N_RULES holds the number of */ + /* guessing rules; the guessed result for the Nth rule is */ + /* represented as a triplet: a new file name (new_names[N]), a file */ + /* offset (offsets[N]), and an error code (errors[N]). */ + /* */ + /* <Input> */ + /* library :: */ + /* A FreeType library instance. */ + /* */ + /* stream :: */ + /* A file stream containing the resource fork. */ + /* */ + /* base_name :: */ + /* The (base) file name of the resource fork used for some */ + /* guessing rules. */ + /* */ + /* <Output> */ + /* new_names :: */ + /* An array of guessed file names in which the resource forks may */ + /* exist. If `new_names[N]' is NULL, the guessed file name is */ + /* equal to `base_name'. */ + /* */ + /* offsets :: */ + /* An array of guessed file offsets. `offsets[N]' holds the file */ + /* offset of the possible start of the resource fork in file */ + /* `new_names[N]'. */ + /* */ + /* errors :: */ + /* An array of FreeType error codes. `errors[N]' is the error */ + /* code of Nth guessing rule function. If `errors[N]' is not */ + /* FT_Err_Ok, `new_names[N]' and `offsets[N]' are meaningless. */ + /* */ + FT_BASE( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char* base_name, + char** new_names, + FT_Long* offsets, + FT_Error* errors ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Raccess_Get_HeaderInfo */ + /* */ + /* <Description> */ + /* Get the information from the header of resource fork. The */ + /* information includes the file offset where the resource map */ + /* starts, and the file offset where the resource data starts. */ + /* `FT_Raccess_Get_DataOffsets' requires these two data. */ + /* */ + /* <Input> */ + /* library :: */ + /* A FreeType library instance. */ + /* */ + /* stream :: */ + /* A file stream containing the resource fork. */ + /* */ + /* rfork_offset :: */ + /* The file offset where the resource fork starts. */ + /* */ + /* <Output> */ + /* map_offset :: */ + /* The file offset where the resource map starts. */ + /* */ + /* rdata_pos :: */ + /* The file offset where the resource data starts. */ + /* */ + /* <Return> */ + /* FreeType error code. FT_Err_Ok means success. */ + /* */ + FT_BASE( FT_Error ) + FT_Raccess_Get_HeaderInfo( FT_Library library, + FT_Stream stream, + FT_Long rfork_offset, + FT_Long *map_offset, + FT_Long *rdata_pos ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Raccess_Get_DataOffsets */ + /* */ + /* <Description> */ + /* Get the data offsets for a tag in a resource fork. Offsets are */ + /* stored in an array because, in some cases, resources in a resource */ + /* fork have the same tag. */ + /* */ + /* <Input> */ + /* library :: */ + /* A FreeType library instance. */ + /* */ + /* stream :: */ + /* A file stream containing the resource fork. */ + /* */ + /* map_offset :: */ + /* The file offset where the resource map starts. */ + /* */ + /* rdata_pos :: */ + /* The file offset where the resource data starts. */ + /* */ + /* tag :: */ + /* The resource tag. */ + /* */ + /* <Output> */ + /* offsets :: */ + /* The stream offsets for the resource data specified by `tag'. */ + /* This array is allocated by the function, so you have to call */ + /* @ft_mem_free after use. */ + /* */ + /* count :: */ + /* The length of offsets array. */ + /* */ + /* <Return> */ + /* FreeType error code. FT_Err_Ok means success. */ + /* */ + /* <Note> */ + /* Normally you should use `FT_Raccess_Get_HeaderInfo' to get the */ + /* value for `map_offset' and `rdata_pos'. */ + /* */ + FT_BASE( FT_Error ) + FT_Raccess_Get_DataOffsets( FT_Library library, + FT_Stream stream, + FT_Long map_offset, + FT_Long rdata_pos, + FT_Long tag, + FT_Long **offsets, + FT_Long *count ); + + +FT_END_HEADER + +#endif /* __FTRFORK_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftserv.h b/uppsrc/plugin/FT_fontsys/internal/ftserv.h new file mode 100644 index 000000000..569b9f7e0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftserv.h @@ -0,0 +1,620 @@ +/***************************************************************************/ +/* */ +/* ftserv.h */ +/* */ +/* The FreeType services (specification only). */ +/* */ +/* Copyright 2003, 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Each module can export one or more `services'. Each service is */ + /* identified by a constant string and modeled by a pointer; the latter */ + /* generally corresponds to a structure containing function pointers. */ + /* */ + /* Note that a service's data cannot be a mere function pointer because */ + /* in C it is possible that function pointers might be implemented */ + /* differently than data pointers (e.g. 48 bits instead of 32). */ + /* */ + /*************************************************************************/ + + +#ifndef __FTSERV_H__ +#define __FTSERV_H__ + + +FT_BEGIN_HEADER + +#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */ + + /* we disable the warning `conditional expression is constant' here */ + /* in order to compile cleanly with the maximum level of warnings */ +#pragma warning( disable : 4127 ) + +#endif /* _MSC_VER */ + + /* + * @macro: + * FT_FACE_FIND_SERVICE + * + * @description: + * This macro is used to look up a service from a face's driver module. + * + * @input: + * face :: + * The source face handle. + * + * id :: + * A string describing the service as defined in the service's + * header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to + * `multi-masters'). It is automatically prefixed with + * `FT_SERVICE_ID_'. + * + * @output: + * ptr :: + * A variable that receives the service pointer. Will be NULL + * if not found. + */ +#ifdef __cplusplus + +#define FT_FACE_FIND_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_ = NULL; \ + FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \ + \ + \ + if ( module->clazz->get_interface ) \ + _tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \ + *_pptr_ = _tmp_; \ + FT_END_STMNT + +#else /* !C++ */ + +#define FT_FACE_FIND_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_ = NULL; \ + \ + if ( module->clazz->get_interface ) \ + _tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \ + ptr = _tmp_; \ + FT_END_STMNT + +#endif /* !C++ */ + + /* + * @macro: + * FT_FACE_FIND_GLOBAL_SERVICE + * + * @description: + * This macro is used to look up a service from all modules. + * + * @input: + * face :: + * The source face handle. + * + * id :: + * A string describing the service as defined in the service's + * header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to + * `multi-masters'). It is automatically prefixed with + * `FT_SERVICE_ID_'. + * + * @output: + * ptr :: + * A variable that receives the service pointer. Will be NULL + * if not found. + */ +#ifdef __cplusplus + +#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_; \ + FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \ + \ + \ + _tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \ + *_pptr_ = _tmp_; \ + FT_END_STMNT + +#else /* !C++ */ + +#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_; \ + \ + \ + _tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \ + ptr = _tmp_; \ + FT_END_STMNT + +#endif /* !C++ */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S E R V I C E D E S C R I P T O R S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * The following structure is used to _describe_ a given service + * to the library. This is useful to build simple static service lists. + */ + typedef struct FT_ServiceDescRec_ + { + const char* serv_id; /* service name */ + const void* serv_data; /* service pointer/data */ + + } FT_ServiceDescRec; + + typedef const FT_ServiceDescRec* FT_ServiceDesc; + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_SERVICEDESCREC1 .. FT_DEFINE_SERVICEDESCREC6 */ + /* */ + /* <Description> */ + /* Used to initialize an array of FT_ServiceDescRec structs. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated array is returned. */ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* */ + /* These functions should be manyally called from the pic_init and */ + /* pic_free functions of your module (see FT_DEFINE_MODULE) */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the array will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICEDESCREC1(class_, serv_id_1, serv_data_1) \ + static const FT_ServiceDescRec class_[] = \ + { \ + {serv_id_1, serv_data_1}, \ + {NULL, NULL} \ + }; +#define FT_DEFINE_SERVICEDESCREC2(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2) \ + static const FT_ServiceDescRec class_[] = \ + { \ + {serv_id_1, serv_data_1}, \ + {serv_id_2, serv_data_2}, \ + {NULL, NULL} \ + }; +#define FT_DEFINE_SERVICEDESCREC3(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3) \ + static const FT_ServiceDescRec class_[] = \ + { \ + {serv_id_1, serv_data_1}, \ + {serv_id_2, serv_data_2}, \ + {serv_id_3, serv_data_3}, \ + {NULL, NULL} \ + }; +#define FT_DEFINE_SERVICEDESCREC4(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4) \ + static const FT_ServiceDescRec class_[] = \ + { \ + {serv_id_1, serv_data_1}, \ + {serv_id_2, serv_data_2}, \ + {serv_id_3, serv_data_3}, \ + {serv_id_4, serv_data_4}, \ + {NULL, NULL} \ + }; +#define FT_DEFINE_SERVICEDESCREC5(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, serv_id_5, serv_data_5) \ + static const FT_ServiceDescRec class_[] = \ + { \ + {serv_id_1, serv_data_1}, \ + {serv_id_2, serv_data_2}, \ + {serv_id_3, serv_data_3}, \ + {serv_id_4, serv_data_4}, \ + {serv_id_5, serv_data_5}, \ + {NULL, NULL} \ + }; +#define FT_DEFINE_SERVICEDESCREC6(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, serv_id_5, serv_data_5, \ + serv_id_6, serv_data_6) \ + static const FT_ServiceDescRec class_[] = \ + { \ + {serv_id_1, serv_data_1}, \ + {serv_id_2, serv_data_2}, \ + {serv_id_3, serv_data_3}, \ + {serv_id_4, serv_data_4}, \ + {serv_id_5, serv_data_5}, \ + {serv_id_6, serv_data_6}, \ + {NULL, NULL} \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICEDESCREC1(class_, serv_id_1, serv_data_1) \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz)*2 ) ) \ + return error; \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = NULL; \ + clazz[1].serv_data = NULL; \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC2(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2) \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz)*3 ) ) \ + return error; \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = NULL; \ + clazz[2].serv_data = NULL; \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC3(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3) \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz)*4 ) ) \ + return error; \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = NULL; \ + clazz[3].serv_data = NULL; \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC4(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4) \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz)*5 ) ) \ + return error; \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = serv_id_4; \ + clazz[3].serv_data = serv_data_4; \ + clazz[4].serv_id = NULL; \ + clazz[4].serv_data = NULL; \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC5(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3, serv_id_4, \ + serv_data_4, serv_id_5, serv_data_5) \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz)*6 ) ) \ + return error; \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = serv_id_4; \ + clazz[3].serv_data = serv_data_4; \ + clazz[4].serv_id = serv_id_5; \ + clazz[4].serv_data = serv_data_5; \ + clazz[5].serv_id = NULL; \ + clazz[5].serv_data = NULL; \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC6(class_, serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, serv_id_5, serv_data_5, \ + serv_id_6, serv_data_6) \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz)*7 ) ) \ + return error; \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = serv_id_4; \ + clazz[3].serv_data = serv_data_4; \ + clazz[4].serv_id = serv_id_5; \ + clazz[4].serv_data = serv_data_5; \ + clazz[5].serv_id = serv_id_6; \ + clazz[5].serv_data = serv_data_6; \ + clazz[6].serv_id = NULL; \ + clazz[6].serv_data = NULL; \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } +#endif /* FT_CONFIG_OPTION_PIC */ + + /* + * Parse a list of FT_ServiceDescRec descriptors and look for + * a specific service by ID. Note that the last element in the + * array must be { NULL, NULL }, and that the function should + * return NULL if the service isn't available. + * + * This function can be used by modules to implement their + * `get_service' method. + */ + FT_BASE( FT_Pointer ) + ft_service_list_lookup( FT_ServiceDesc service_descriptors, + const char* service_id ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S E R V I C E S C A C H E *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * This structure is used to store a cache for several frequently used + * services. It is the type of `face->internal->services'. You + * should only use FT_FACE_LOOKUP_SERVICE to access it. + * + * All fields should have the type FT_Pointer to relax compilation + * dependencies. We assume the developer isn't completely stupid. + * + * Each field must be named `service_XXXX' where `XXX' corresponds to + * the correct FT_SERVICE_ID_XXXX macro. See the definition of + * FT_FACE_LOOKUP_SERVICE below how this is implemented. + * + */ + typedef struct FT_ServiceCacheRec_ + { + FT_Pointer service_POSTSCRIPT_FONT_NAME; + FT_Pointer service_MULTI_MASTERS; + FT_Pointer service_GLYPH_DICT; + FT_Pointer service_PFR_METRICS; + FT_Pointer service_WINFNT; + + } FT_ServiceCacheRec, *FT_ServiceCache; + + + /* + * A magic number used within the services cache. + */ +#define FT_SERVICE_UNAVAILABLE ((FT_Pointer)-2) /* magic number */ + + + /* + * @macro: + * FT_FACE_LOOKUP_SERVICE + * + * @description: + * This macro is used to lookup a service from a face's driver module + * using its cache. + * + * @input: + * face:: + * The source face handle containing the cache. + * + * field :: + * The field name in the cache. + * + * id :: + * The service ID. + * + * @output: + * ptr :: + * A variable receiving the service data. NULL if not available. + */ +#ifdef __cplusplus + +#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Pointer svc; \ + FT_Pointer* Pptr = (FT_Pointer*)&(ptr); \ + \ + \ + svc = FT_FACE( face )->internal->services. service_ ## id; \ + if ( svc == FT_SERVICE_UNAVAILABLE ) \ + svc = NULL; \ + else if ( svc == NULL ) \ + { \ + FT_FACE_FIND_SERVICE( face, svc, id ); \ + \ + FT_FACE( face )->internal->services. service_ ## id = \ + (FT_Pointer)( svc != NULL ? svc \ + : FT_SERVICE_UNAVAILABLE ); \ + } \ + *Pptr = svc; \ + FT_END_STMNT + +#else /* !C++ */ + +#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Pointer svc; \ + \ + \ + svc = FT_FACE( face )->internal->services. service_ ## id; \ + if ( svc == FT_SERVICE_UNAVAILABLE ) \ + svc = NULL; \ + else if ( svc == NULL ) \ + { \ + FT_FACE_FIND_SERVICE( face, svc, id ); \ + \ + FT_FACE( face )->internal->services. service_ ## id = \ + (FT_Pointer)( svc != NULL ? svc \ + : FT_SERVICE_UNAVAILABLE ); \ + } \ + ptr = svc; \ + FT_END_STMNT + +#endif /* !C++ */ + + /* + * A macro used to define new service structure types. + */ + +#define FT_DEFINE_SERVICE( name ) \ + typedef struct FT_Service_ ## name ## Rec_ \ + FT_Service_ ## name ## Rec ; \ + typedef struct FT_Service_ ## name ## Rec_ \ + const * FT_Service_ ## name ; \ + struct FT_Service_ ## name ## Rec_ + + /* */ + + /* + * The header files containing the services. + */ + +#define FT_SERVICE_BDF_H <freetype/internal/services/svbdf.h> +#define FT_SERVICE_CID_H <freetype/internal/services/svcid.h> +#define FT_SERVICE_GLYPH_DICT_H <freetype/internal/services/svgldict.h> +#define FT_SERVICE_GX_VALIDATE_H <freetype/internal/services/svgxval.h> +#define FT_SERVICE_KERNING_H <freetype/internal/services/svkern.h> +#define FT_SERVICE_MULTIPLE_MASTERS_H <freetype/internal/services/svmm.h> +#define FT_SERVICE_OPENTYPE_VALIDATE_H <freetype/internal/services/svotval.h> +#define FT_SERVICE_PFR_H <freetype/internal/services/svpfr.h> +#define FT_SERVICE_POSTSCRIPT_CMAPS_H <freetype/internal/services/svpscmap.h> +#define FT_SERVICE_POSTSCRIPT_INFO_H <freetype/internal/services/svpsinfo.h> +#define FT_SERVICE_POSTSCRIPT_NAME_H <freetype/internal/services/svpostnm.h> +#define FT_SERVICE_SFNT_H <freetype/internal/services/svsfnt.h> +#define FT_SERVICE_TRUETYPE_ENGINE_H <freetype/internal/services/svtteng.h> +#define FT_SERVICE_TT_CMAP_H <freetype/internal/services/svttcmap.h> +#define FT_SERVICE_WINFNT_H <freetype/internal/services/svwinfnt.h> +#define FT_SERVICE_XFREE86_NAME_H <freetype/internal/services/svxf86nm.h> +#define FT_SERVICE_TRUETYPE_GLYF_H <freetype/internal/services/svttglyf.h> + + /* */ + +FT_END_HEADER + +#endif /* __FTSERV_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftstream.h b/uppsrc/plugin/FT_fontsys/internal/ftstream.h new file mode 100644 index 000000000..19fe20559 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftstream.h @@ -0,0 +1,539 @@ +/***************************************************************************/ +/* */ +/* ftstream.h */ +/* */ +/* Stream handling (specification). */ +/* */ +/* Copyright 1996-2002, 2004-2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSTREAM_H__ +#define __FTSTREAM_H__ + + +#include <freetype/ft2build.h> +#include FT_SYSTEM_H +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + /* format of an 8-bit frame_op value: */ + /* */ + /* bit 76543210 */ + /* xxxxxxes */ + /* */ + /* s is set to 1 if the value is signed. */ + /* e is set to 1 if the value is little-endian. */ + /* xxx is a command. */ + +#define FT_FRAME_OP_SHIFT 2 +#define FT_FRAME_OP_SIGNED 1 +#define FT_FRAME_OP_LITTLE 2 +#define FT_FRAME_OP_COMMAND( x ) ( x >> FT_FRAME_OP_SHIFT ) + +#define FT_MAKE_FRAME_OP( command, little, sign ) \ + ( ( command << FT_FRAME_OP_SHIFT ) | ( little << 1 ) | sign ) + +#define FT_FRAME_OP_END 0 +#define FT_FRAME_OP_START 1 /* start a new frame */ +#define FT_FRAME_OP_BYTE 2 /* read 1-byte value */ +#define FT_FRAME_OP_SHORT 3 /* read 2-byte value */ +#define FT_FRAME_OP_LONG 4 /* read 4-byte value */ +#define FT_FRAME_OP_OFF3 5 /* read 3-byte value */ +#define FT_FRAME_OP_BYTES 6 /* read a bytes sequence */ + + + typedef enum FT_Frame_Op_ + { + ft_frame_end = 0, + ft_frame_start = FT_MAKE_FRAME_OP( FT_FRAME_OP_START, 0, 0 ), + + ft_frame_byte = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 0 ), + ft_frame_schar = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 1 ), + + ft_frame_ushort_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 0 ), + ft_frame_short_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 1 ), + ft_frame_ushort_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 0 ), + ft_frame_short_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 1 ), + + ft_frame_ulong_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 0 ), + ft_frame_long_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 1 ), + ft_frame_ulong_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 0 ), + ft_frame_long_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 1 ), + + ft_frame_uoff3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 0 ), + ft_frame_off3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 1 ), + ft_frame_uoff3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 0 ), + ft_frame_off3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 1 ), + + ft_frame_bytes = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 0 ), + ft_frame_skip = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 1 ) + + } FT_Frame_Op; + + + typedef struct FT_Frame_Field_ + { + FT_Byte value; + FT_Byte size; + FT_UShort offset; + + } FT_Frame_Field; + + + /* Construct an FT_Frame_Field out of a structure type and a field name. */ + /* The structure type must be set in the FT_STRUCTURE macro before */ + /* calling the FT_FRAME_START() macro. */ + /* */ +#define FT_FIELD_SIZE( f ) \ + (FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f ) + +#define FT_FIELD_SIZE_DELTA( f ) \ + (FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f[0] ) + +#define FT_FIELD_OFFSET( f ) \ + (FT_UShort)( offsetof( FT_STRUCTURE, f ) ) + +#define FT_FRAME_FIELD( frame_op, field ) \ + { \ + frame_op, \ + FT_FIELD_SIZE( field ), \ + FT_FIELD_OFFSET( field ) \ + } + +#define FT_MAKE_EMPTY_FIELD( frame_op ) { frame_op, 0, 0 } + +#define FT_FRAME_START( size ) { ft_frame_start, 0, size } +#define FT_FRAME_END { ft_frame_end, 0, 0 } + +#define FT_FRAME_LONG( f ) FT_FRAME_FIELD( ft_frame_long_be, f ) +#define FT_FRAME_ULONG( f ) FT_FRAME_FIELD( ft_frame_ulong_be, f ) +#define FT_FRAME_SHORT( f ) FT_FRAME_FIELD( ft_frame_short_be, f ) +#define FT_FRAME_USHORT( f ) FT_FRAME_FIELD( ft_frame_ushort_be, f ) +#define FT_FRAME_OFF3( f ) FT_FRAME_FIELD( ft_frame_off3_be, f ) +#define FT_FRAME_UOFF3( f ) FT_FRAME_FIELD( ft_frame_uoff3_be, f ) +#define FT_FRAME_BYTE( f ) FT_FRAME_FIELD( ft_frame_byte, f ) +#define FT_FRAME_CHAR( f ) FT_FRAME_FIELD( ft_frame_schar, f ) + +#define FT_FRAME_LONG_LE( f ) FT_FRAME_FIELD( ft_frame_long_le, f ) +#define FT_FRAME_ULONG_LE( f ) FT_FRAME_FIELD( ft_frame_ulong_le, f ) +#define FT_FRAME_SHORT_LE( f ) FT_FRAME_FIELD( ft_frame_short_le, f ) +#define FT_FRAME_USHORT_LE( f ) FT_FRAME_FIELD( ft_frame_ushort_le, f ) +#define FT_FRAME_OFF3_LE( f ) FT_FRAME_FIELD( ft_frame_off3_le, f ) +#define FT_FRAME_UOFF3_LE( f ) FT_FRAME_FIELD( ft_frame_uoff3_le, f ) + +#define FT_FRAME_SKIP_LONG { ft_frame_long_be, 0, 0 } +#define FT_FRAME_SKIP_SHORT { ft_frame_short_be, 0, 0 } +#define FT_FRAME_SKIP_BYTE { ft_frame_byte, 0, 0 } + +#define FT_FRAME_BYTES( field, count ) \ + { \ + ft_frame_bytes, \ + count, \ + FT_FIELD_OFFSET( field ) \ + } + +#define FT_FRAME_SKIP_BYTES( count ) { ft_frame_skip, count, 0 } + + + /*************************************************************************/ + /* */ + /* Integer extraction macros -- the `buffer' parameter must ALWAYS be of */ + /* type `char*' or equivalent (1-byte elements). */ + /* */ + +#define FT_BYTE_( p, i ) ( ((const FT_Byte*)(p))[(i)] ) +#define FT_INT8_( p, i ) ( ((const FT_Char*)(p))[(i)] ) + +#define FT_INT16( x ) ( (FT_Int16)(x) ) +#define FT_UINT16( x ) ( (FT_UInt16)(x) ) +#define FT_INT32( x ) ( (FT_Int32)(x) ) +#define FT_UINT32( x ) ( (FT_UInt32)(x) ) + +#define FT_BYTE_I16( p, i, s ) ( FT_INT16( FT_BYTE_( p, i ) ) << (s) ) +#define FT_BYTE_U16( p, i, s ) ( FT_UINT16( FT_BYTE_( p, i ) ) << (s) ) +#define FT_BYTE_I32( p, i, s ) ( FT_INT32( FT_BYTE_( p, i ) ) << (s) ) +#define FT_BYTE_U32( p, i, s ) ( FT_UINT32( FT_BYTE_( p, i ) ) << (s) ) + +#define FT_INT8_I16( p, i, s ) ( FT_INT16( FT_INT8_( p, i ) ) << (s) ) +#define FT_INT8_U16( p, i, s ) ( FT_UINT16( FT_INT8_( p, i ) ) << (s) ) +#define FT_INT8_I32( p, i, s ) ( FT_INT32( FT_INT8_( p, i ) ) << (s) ) +#define FT_INT8_U32( p, i, s ) ( FT_UINT32( FT_INT8_( p, i ) ) << (s) ) + + +#define FT_PEEK_SHORT( p ) FT_INT16( FT_INT8_I16( p, 0, 8) | \ + FT_BYTE_I16( p, 1, 0) ) + +#define FT_PEEK_USHORT( p ) FT_UINT16( FT_BYTE_U16( p, 0, 8 ) | \ + FT_BYTE_U16( p, 1, 0 ) ) + +#define FT_PEEK_LONG( p ) FT_INT32( FT_INT8_I32( p, 0, 24 ) | \ + FT_BYTE_I32( p, 1, 16 ) | \ + FT_BYTE_I32( p, 2, 8 ) | \ + FT_BYTE_I32( p, 3, 0 ) ) + +#define FT_PEEK_ULONG( p ) FT_UINT32( FT_BYTE_U32( p, 0, 24 ) | \ + FT_BYTE_U32( p, 1, 16 ) | \ + FT_BYTE_U32( p, 2, 8 ) | \ + FT_BYTE_U32( p, 3, 0 ) ) + +#define FT_PEEK_OFF3( p ) FT_INT32( FT_INT8_I32( p, 0, 16 ) | \ + FT_BYTE_I32( p, 1, 8 ) | \ + FT_BYTE_I32( p, 2, 0 ) ) + +#define FT_PEEK_UOFF3( p ) FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \ + FT_BYTE_U32( p, 1, 8 ) | \ + FT_BYTE_U32( p, 2, 0 ) ) + +#define FT_PEEK_SHORT_LE( p ) FT_INT16( FT_INT8_I16( p, 1, 8 ) | \ + FT_BYTE_I16( p, 0, 0 ) ) + +#define FT_PEEK_USHORT_LE( p ) FT_UINT16( FT_BYTE_U16( p, 1, 8 ) | \ + FT_BYTE_U16( p, 0, 0 ) ) + +#define FT_PEEK_LONG_LE( p ) FT_INT32( FT_INT8_I32( p, 3, 24 ) | \ + FT_BYTE_I32( p, 2, 16 ) | \ + FT_BYTE_I32( p, 1, 8 ) | \ + FT_BYTE_I32( p, 0, 0 ) ) + +#define FT_PEEK_ULONG_LE( p ) FT_UINT32( FT_BYTE_U32( p, 3, 24 ) | \ + FT_BYTE_U32( p, 2, 16 ) | \ + FT_BYTE_U32( p, 1, 8 ) | \ + FT_BYTE_U32( p, 0, 0 ) ) + +#define FT_PEEK_OFF3_LE( p ) FT_INT32( FT_INT8_I32( p, 2, 16 ) | \ + FT_BYTE_I32( p, 1, 8 ) | \ + FT_BYTE_I32( p, 0, 0 ) ) + +#define FT_PEEK_UOFF3_LE( p ) FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \ + FT_BYTE_U32( p, 1, 8 ) | \ + FT_BYTE_U32( p, 0, 0 ) ) + + +#define FT_NEXT_CHAR( buffer ) \ + ( (signed char)*buffer++ ) + +#define FT_NEXT_BYTE( buffer ) \ + ( (unsigned char)*buffer++ ) + +#define FT_NEXT_SHORT( buffer ) \ + ( (short)( buffer += 2, FT_PEEK_SHORT( buffer - 2 ) ) ) + +#define FT_NEXT_USHORT( buffer ) \ + ( (unsigned short)( buffer += 2, FT_PEEK_USHORT( buffer - 2 ) ) ) + +#define FT_NEXT_OFF3( buffer ) \ + ( (long)( buffer += 3, FT_PEEK_OFF3( buffer - 3 ) ) ) + +#define FT_NEXT_UOFF3( buffer ) \ + ( (unsigned long)( buffer += 3, FT_PEEK_UOFF3( buffer - 3 ) ) ) + +#define FT_NEXT_LONG( buffer ) \ + ( (long)( buffer += 4, FT_PEEK_LONG( buffer - 4 ) ) ) + +#define FT_NEXT_ULONG( buffer ) \ + ( (unsigned long)( buffer += 4, FT_PEEK_ULONG( buffer - 4 ) ) ) + + +#define FT_NEXT_SHORT_LE( buffer ) \ + ( (short)( buffer += 2, FT_PEEK_SHORT_LE( buffer - 2 ) ) ) + +#define FT_NEXT_USHORT_LE( buffer ) \ + ( (unsigned short)( buffer += 2, FT_PEEK_USHORT_LE( buffer - 2 ) ) ) + +#define FT_NEXT_OFF3_LE( buffer ) \ + ( (long)( buffer += 3, FT_PEEK_OFF3_LE( buffer - 3 ) ) ) + +#define FT_NEXT_UOFF3_LE( buffer ) \ + ( (unsigned long)( buffer += 3, FT_PEEK_UOFF3_LE( buffer - 3 ) ) ) + +#define FT_NEXT_LONG_LE( buffer ) \ + ( (long)( buffer += 4, FT_PEEK_LONG_LE( buffer - 4 ) ) ) + +#define FT_NEXT_ULONG_LE( buffer ) \ + ( (unsigned long)( buffer += 4, FT_PEEK_ULONG_LE( buffer - 4 ) ) ) + + + /*************************************************************************/ + /* */ + /* Each GET_xxxx() macro uses an implicit `stream' variable. */ + /* */ +#if 0 +#define FT_GET_MACRO( type ) FT_NEXT_ ## type ( stream->cursor ) + +#define FT_GET_CHAR() FT_GET_MACRO( CHAR ) +#define FT_GET_BYTE() FT_GET_MACRO( BYTE ) +#define FT_GET_SHORT() FT_GET_MACRO( SHORT ) +#define FT_GET_USHORT() FT_GET_MACRO( USHORT ) +#define FT_GET_OFF3() FT_GET_MACRO( OFF3 ) +#define FT_GET_UOFF3() FT_GET_MACRO( UOFF3 ) +#define FT_GET_LONG() FT_GET_MACRO( LONG ) +#define FT_GET_ULONG() FT_GET_MACRO( ULONG ) +#define FT_GET_TAG4() FT_GET_MACRO( ULONG ) + +#define FT_GET_SHORT_LE() FT_GET_MACRO( SHORT_LE ) +#define FT_GET_USHORT_LE() FT_GET_MACRO( USHORT_LE ) +#define FT_GET_LONG_LE() FT_GET_MACRO( LONG_LE ) +#define FT_GET_ULONG_LE() FT_GET_MACRO( ULONG_LE ) + +#else +#define FT_GET_MACRO( func, type ) ( (type)func( stream ) ) + +#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetChar, FT_Char ) +#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetChar, FT_Byte ) +#define FT_GET_SHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_Short ) +#define FT_GET_USHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_UShort ) +#define FT_GET_OFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_Long ) +#define FT_GET_UOFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_ULong ) +#define FT_GET_LONG() FT_GET_MACRO( FT_Stream_GetULong, FT_Long ) +#define FT_GET_ULONG() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong ) +#define FT_GET_TAG4() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong ) + +#define FT_GET_SHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_Short ) +#define FT_GET_USHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_UShort ) +#define FT_GET_LONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_Long ) +#define FT_GET_ULONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_ULong ) +#endif + +#define FT_READ_MACRO( func, type, var ) \ + ( var = (type)func( stream, &error ), \ + error != FT_Err_Ok ) + +#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Byte, var ) +#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Char, var ) +#define FT_READ_SHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_Short, var ) +#define FT_READ_USHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_UShort, var ) +#define FT_READ_OFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_Long, var ) +#define FT_READ_UOFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_ULong, var ) +#define FT_READ_LONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_Long, var ) +#define FT_READ_ULONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_ULong, var ) + +#define FT_READ_SHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_Short, var ) +#define FT_READ_USHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_UShort, var ) +#define FT_READ_LONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_Long, var ) +#define FT_READ_ULONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_ULong, var ) + + +#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM + + /* initialize a stream for reading a regular system stream */ + FT_BASE( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ); + +#endif /* FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */ + + + /* create a new (input) stream from an FT_Open_Args structure */ + FT_BASE( FT_Error ) + FT_Stream_New( FT_Library library, + const FT_Open_Args* args, + FT_Stream *astream ); + + /* free a stream */ + FT_BASE( void ) + FT_Stream_Free( FT_Stream stream, + FT_Int external ); + + /* initialize a stream for reading in-memory data */ + FT_BASE( void ) + FT_Stream_OpenMemory( FT_Stream stream, + const FT_Byte* base, + FT_ULong size ); + + /* close a stream (does not destroy the stream structure) */ + FT_BASE( void ) + FT_Stream_Close( FT_Stream stream ); + + + /* seek within a stream. position is relative to start of stream */ + FT_BASE( FT_Error ) + FT_Stream_Seek( FT_Stream stream, + FT_ULong pos ); + + /* skip bytes in a stream */ + FT_BASE( FT_Error ) + FT_Stream_Skip( FT_Stream stream, + FT_Long distance ); + + /* return current stream position */ + FT_BASE( FT_Long ) + FT_Stream_Pos( FT_Stream stream ); + + /* read bytes from a stream into a user-allocated buffer, returns an */ + /* error if not all bytes could be read. */ + FT_BASE( FT_Error ) + FT_Stream_Read( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ); + + /* read bytes from a stream at a given position */ + FT_BASE( FT_Error ) + FT_Stream_ReadAt( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ); + + /* try to read bytes at the end of a stream; return number of bytes */ + /* really available */ + FT_BASE( FT_ULong ) + FT_Stream_TryRead( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ); + + /* Enter a frame of `count' consecutive bytes in a stream. Returns an */ + /* error if the frame could not be read/accessed. The caller can use */ + /* the FT_Stream_Get_XXX functions to retrieve frame data without */ + /* error checks. */ + /* */ + /* You must _always_ call FT_Stream_ExitFrame() once you have entered */ + /* a stream frame! */ + /* */ + FT_BASE( FT_Error ) + FT_Stream_EnterFrame( FT_Stream stream, + FT_ULong count ); + + /* exit a stream frame */ + FT_BASE( void ) + FT_Stream_ExitFrame( FT_Stream stream ); + + /* Extract a stream frame. If the stream is disk-based, a heap block */ + /* is allocated and the frame bytes are read into it. If the stream */ + /* is memory-based, this function simply set a pointer to the data. */ + /* */ + /* Useful to optimize access to memory-based streams transparently. */ + /* */ + /* All extracted frames must be `freed' with a call to the function */ + /* FT_Stream_ReleaseFrame(). */ + /* */ + FT_BASE( FT_Error ) + FT_Stream_ExtractFrame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ); + + /* release an extract frame (see FT_Stream_ExtractFrame) */ + FT_BASE( void ) + FT_Stream_ReleaseFrame( FT_Stream stream, + FT_Byte** pbytes ); + + /* read a byte from an entered frame */ + FT_BASE( FT_Char ) + FT_Stream_GetChar( FT_Stream stream ); + + /* read a 16-bit big-endian unsigned integer from an entered frame */ + FT_BASE( FT_UShort ) + FT_Stream_GetUShort( FT_Stream stream ); + + /* read a 24-bit big-endian unsigned integer from an entered frame */ + FT_BASE( FT_ULong ) + FT_Stream_GetUOffset( FT_Stream stream ); + + /* read a 32-bit big-endian unsigned integer from an entered frame */ + FT_BASE( FT_ULong ) + FT_Stream_GetULong( FT_Stream stream ); + + /* read a 16-bit little-endian unsigned integer from an entered frame */ + FT_BASE( FT_UShort ) + FT_Stream_GetUShortLE( FT_Stream stream ); + + /* read a 32-bit little-endian unsigned integer from an entered frame */ + FT_BASE( FT_ULong ) + FT_Stream_GetULongLE( FT_Stream stream ); + + + /* read a byte from a stream */ + FT_BASE( FT_Char ) + FT_Stream_ReadChar( FT_Stream stream, + FT_Error* error ); + + /* read a 16-bit big-endian unsigned integer from a stream */ + FT_BASE( FT_UShort ) + FT_Stream_ReadUShort( FT_Stream stream, + FT_Error* error ); + + /* read a 24-bit big-endian unsigned integer from a stream */ + FT_BASE( FT_ULong ) + FT_Stream_ReadUOffset( FT_Stream stream, + FT_Error* error ); + + /* read a 32-bit big-endian integer from a stream */ + FT_BASE( FT_ULong ) + FT_Stream_ReadULong( FT_Stream stream, + FT_Error* error ); + + /* read a 16-bit little-endian unsigned integer from a stream */ + FT_BASE( FT_UShort ) + FT_Stream_ReadUShortLE( FT_Stream stream, + FT_Error* error ); + + /* read a 32-bit little-endian unsigned integer from a stream */ + FT_BASE( FT_ULong ) + FT_Stream_ReadULongLE( FT_Stream stream, + FT_Error* error ); + + /* Read a structure from a stream. The structure must be described */ + /* by an array of FT_Frame_Field records. */ + FT_BASE( FT_Error ) + FT_Stream_ReadFields( FT_Stream stream, + const FT_Frame_Field* fields, + void* structure ); + + +#define FT_STREAM_POS() \ + FT_Stream_Pos( stream ) + +#define FT_STREAM_SEEK( position ) \ + FT_SET_ERROR( FT_Stream_Seek( stream, position ) ) + +#define FT_STREAM_SKIP( distance ) \ + FT_SET_ERROR( FT_Stream_Skip( stream, distance ) ) + +#define FT_STREAM_READ( buffer, count ) \ + FT_SET_ERROR( FT_Stream_Read( stream, \ + (FT_Byte*)buffer, \ + count ) ) + +#define FT_STREAM_READ_AT( position, buffer, count ) \ + FT_SET_ERROR( FT_Stream_ReadAt( stream, \ + position, \ + (FT_Byte*)buffer, \ + count ) ) + +#define FT_STREAM_READ_FIELDS( fields, object ) \ + FT_SET_ERROR( FT_Stream_ReadFields( stream, fields, object ) ) + + +#define FT_FRAME_ENTER( size ) \ + FT_SET_ERROR( \ + FT_DEBUG_INNER( FT_Stream_EnterFrame( stream, size ) ) ) + +#define FT_FRAME_EXIT() \ + FT_DEBUG_INNER( FT_Stream_ExitFrame( stream ) ) + +#define FT_FRAME_EXTRACT( size, bytes ) \ + FT_SET_ERROR( \ + FT_DEBUG_INNER( FT_Stream_ExtractFrame( stream, size, \ + (FT_Byte**)&(bytes) ) ) ) + +#define FT_FRAME_RELEASE( bytes ) \ + FT_DEBUG_INNER( FT_Stream_ReleaseFrame( stream, \ + (FT_Byte**)&(bytes) ) ) + + +FT_END_HEADER + +#endif /* __FTSTREAM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/fttrace.h b/uppsrc/plugin/FT_fontsys/internal/fttrace.h new file mode 100644 index 000000000..fbefdbdf4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/fttrace.h @@ -0,0 +1,144 @@ +/***************************************************************************/ +/* */ +/* fttrace.h */ +/* */ +/* Tracing handling (specification only). */ +/* */ +/* Copyright 2002, 2004-2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* definitions of trace levels for FreeType 2 */ + + /* the first level must always be `trace_any' */ +FT_TRACE_DEF( any ) + + /* base components */ +FT_TRACE_DEF( calc ) /* calculations (ftcalc.c) */ +FT_TRACE_DEF( memory ) /* memory manager (ftobjs.c) */ +FT_TRACE_DEF( stream ) /* stream manager (ftstream.c) */ +FT_TRACE_DEF( io ) /* i/o interface (ftsystem.c) */ +FT_TRACE_DEF( list ) /* list management (ftlist.c) */ +FT_TRACE_DEF( init ) /* initialization (ftinit.c) */ +FT_TRACE_DEF( objs ) /* base objects (ftobjs.c) */ +FT_TRACE_DEF( outline ) /* outline management (ftoutln.c) */ +FT_TRACE_DEF( glyph ) /* glyph management (ftglyph.c) */ +FT_TRACE_DEF( gloader ) /* glyph loader (ftgloadr.c) */ + +FT_TRACE_DEF( raster ) /* monochrome rasterizer (ftraster.c) */ +FT_TRACE_DEF( smooth ) /* anti-aliasing raster (ftgrays.c) */ +FT_TRACE_DEF( mm ) /* MM interface (ftmm.c) */ +FT_TRACE_DEF( raccess ) /* resource fork accessor (ftrfork.c) */ +FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */ + + /* Cache sub-system */ +FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */ + + /* SFNT driver components */ +FT_TRACE_DEF( sfdriver ) /* SFNT font driver (sfdriver.c) */ +FT_TRACE_DEF( sfobjs ) /* SFNT object handler (sfobjs.c) */ +FT_TRACE_DEF( ttcmap ) /* charmap handler (ttcmap.c) */ +FT_TRACE_DEF( ttkern ) /* kerning handler (ttkern.c) */ +FT_TRACE_DEF( ttload ) /* basic TrueType tables (ttload.c) */ +FT_TRACE_DEF( ttmtx ) /* metrics-related tables (ttmtx.c) */ +FT_TRACE_DEF( ttpost ) /* PS table processing (ttpost.c) */ +FT_TRACE_DEF( ttsbit ) /* TrueType sbit handling (ttsbit.c) */ +FT_TRACE_DEF( ttbdf ) /* TrueType embedded BDF (ttbdf.c) */ + + /* TrueType driver components */ +FT_TRACE_DEF( ttdriver ) /* TT font driver (ttdriver.c) */ +FT_TRACE_DEF( ttgload ) /* TT glyph loader (ttgload.c) */ +FT_TRACE_DEF( ttinterp ) /* bytecode interpreter (ttinterp.c) */ +FT_TRACE_DEF( ttobjs ) /* TT objects manager (ttobjs.c) */ +FT_TRACE_DEF( ttpload ) /* TT data/program loader (ttpload.c) */ +FT_TRACE_DEF( ttgxvar ) /* TrueType GX var handler (ttgxvar.c) */ + + /* Type 1 driver components */ +FT_TRACE_DEF( t1afm ) +FT_TRACE_DEF( t1driver ) +FT_TRACE_DEF( t1gload ) +FT_TRACE_DEF( t1hint ) +FT_TRACE_DEF( t1load ) +FT_TRACE_DEF( t1objs ) +FT_TRACE_DEF( t1parse ) + + /* PostScript helper module `psaux' */ +FT_TRACE_DEF( t1decode ) +FT_TRACE_DEF( psobjs ) + + /* PostScript hinting module `pshinter' */ +FT_TRACE_DEF( pshrec ) +FT_TRACE_DEF( pshalgo1 ) +FT_TRACE_DEF( pshalgo2 ) + + /* Type 2 driver components */ +FT_TRACE_DEF( cffdriver ) +FT_TRACE_DEF( cffgload ) +FT_TRACE_DEF( cffload ) +FT_TRACE_DEF( cffobjs ) +FT_TRACE_DEF( cffparse ) + + /* Type 42 driver component */ +FT_TRACE_DEF( t42 ) + + /* CID driver components */ +FT_TRACE_DEF( cidafm ) +FT_TRACE_DEF( ciddriver ) +FT_TRACE_DEF( cidgload ) +FT_TRACE_DEF( cidload ) +FT_TRACE_DEF( cidobjs ) +FT_TRACE_DEF( cidparse ) + + /* Windows font component */ +FT_TRACE_DEF( winfnt ) + + /* PCF font components */ +FT_TRACE_DEF( pcfdriver ) +FT_TRACE_DEF( pcfread ) + + /* BDF font components */ +FT_TRACE_DEF( bdfdriver ) +FT_TRACE_DEF( bdflib ) + + /* PFR font component */ +FT_TRACE_DEF( pfr ) + + /* OpenType validation components */ +FT_TRACE_DEF( otvmodule ) +FT_TRACE_DEF( otvcommon ) +FT_TRACE_DEF( otvbase ) +FT_TRACE_DEF( otvgdef ) +FT_TRACE_DEF( otvgpos ) +FT_TRACE_DEF( otvgsub ) +FT_TRACE_DEF( otvjstf ) +FT_TRACE_DEF( otvmath ) + + /* TrueTypeGX/AAT validation components */ +FT_TRACE_DEF( gxvmodule ) +FT_TRACE_DEF( gxvcommon ) +FT_TRACE_DEF( gxvfeat ) +FT_TRACE_DEF( gxvmort ) +FT_TRACE_DEF( gxvmorx ) +FT_TRACE_DEF( gxvbsln ) +FT_TRACE_DEF( gxvjust ) +FT_TRACE_DEF( gxvkern ) +FT_TRACE_DEF( gxvopbd ) +FT_TRACE_DEF( gxvtrak ) +FT_TRACE_DEF( gxvprop ) +FT_TRACE_DEF( gxvlcar ) + + /* autofit components */ +FT_TRACE_DEF( afcjk ) +FT_TRACE_DEF( aflatin ) +FT_TRACE_DEF( aflatin2 ) +FT_TRACE_DEF( afwarp ) + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/ftvalid.h b/uppsrc/plugin/FT_fontsys/internal/ftvalid.h new file mode 100644 index 000000000..d58eee6b3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/ftvalid.h @@ -0,0 +1,150 @@ +/***************************************************************************/ +/* */ +/* ftvalid.h */ +/* */ +/* FreeType validation support (specification). */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTVALID_H__ +#define __FTVALID_H__ + +#include <freetype/ft2build.h> +#include FT_CONFIG_STANDARD_LIBRARY_H /* for ft_setjmp and ft_longjmp */ + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** V A L I D A T I O N ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* handle to a validation object */ + typedef struct FT_ValidatorRec_ volatile* FT_Validator; + + + /*************************************************************************/ + /* */ + /* There are three distinct validation levels defined here: */ + /* */ + /* FT_VALIDATE_DEFAULT :: */ + /* A table that passes this validation level can be used reliably by */ + /* FreeType. It generally means that all offsets have been checked to */ + /* prevent out-of-bound reads, that array counts are correct, etc. */ + /* */ + /* FT_VALIDATE_TIGHT :: */ + /* A table that passes this validation level can be used reliably and */ + /* doesn't contain invalid data. For example, a charmap table that */ + /* returns invalid glyph indices will not pass, even though it can */ + /* be used with FreeType in default mode (the library will simply */ + /* return an error later when trying to load the glyph). */ + /* */ + /* It also checks that fields which must be a multiple of 2, 4, or 8, */ + /* don't have incorrect values, etc. */ + /* */ + /* FT_VALIDATE_PARANOID :: */ + /* Only for font debugging. Checks that a table follows the */ + /* specification by 100%. Very few fonts will be able to pass this */ + /* level anyway but it can be useful for certain tools like font */ + /* editors/converters. */ + /* */ + typedef enum FT_ValidationLevel_ + { + FT_VALIDATE_DEFAULT = 0, + FT_VALIDATE_TIGHT, + FT_VALIDATE_PARANOID + + } FT_ValidationLevel; + + + /* validator structure */ + typedef struct FT_ValidatorRec_ + { + const FT_Byte* base; /* address of table in memory */ + const FT_Byte* limit; /* `base' + sizeof(table) in memory */ + FT_ValidationLevel level; /* validation level */ + FT_Error error; /* error returned. 0 means success */ + + ft_jmp_buf jump_buffer; /* used for exception handling */ + + } FT_ValidatorRec; + + +#define FT_VALIDATOR( x ) ((FT_Validator)( x )) + + + FT_BASE( void ) + ft_validator_init( FT_Validator valid, + const FT_Byte* base, + const FT_Byte* limit, + FT_ValidationLevel level ); + + /* Do not use this. It's broken and will cause your validator to crash */ + /* if you run it on an invalid font. */ + FT_BASE( FT_Int ) + ft_validator_run( FT_Validator valid ); + + /* Sets the error field in a validator, then calls `longjmp' to return */ + /* to high-level caller. Using `setjmp/longjmp' avoids many stupid */ + /* error checks within the validation routines. */ + /* */ + FT_BASE( void ) + ft_validator_error( FT_Validator valid, + FT_Error error ); + + + /* Calls ft_validate_error. Assumes that the `valid' local variable */ + /* holds a pointer to the current validator object. */ + /* */ + /* Use preprocessor prescan to pass FT_ERR_PREFIX. */ + /* */ +#define FT_INVALID( _prefix, _error ) FT_INVALID_( _prefix, _error ) +#define FT_INVALID_( _prefix, _error ) \ + ft_validator_error( valid, _prefix ## _error ) + + /* called when a broken table is detected */ +#define FT_INVALID_TOO_SHORT \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Table ) + + /* called when an invalid offset is detected */ +#define FT_INVALID_OFFSET \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Offset ) + + /* called when an invalid format/value is detected */ +#define FT_INVALID_FORMAT \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Table ) + + /* called when an invalid glyph index is detected */ +#define FT_INVALID_GLYPH_ID \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Glyph_Index ) + + /* called when an invalid field value is detected */ +#define FT_INVALID_DATA \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Table ) + + +FT_END_HEADER + +#endif /* __FTVALID_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/internal.h b/uppsrc/plugin/FT_fontsys/internal/internal.h new file mode 100644 index 000000000..f500a651c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/internal.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* internal.h */ +/* */ +/* Internal header files (specification only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is automatically included by `ft2build.h'. */ + /* Do not include it manually! */ + /* */ + /*************************************************************************/ + + +#define FT_INTERNAL_OBJECTS_H <freetype/internal/ftobjs.h> +#define FT_INTERNAL_PIC_H <freetype/internal/ftpic.h> +#define FT_INTERNAL_STREAM_H <freetype/internal/ftstream.h> +#define FT_INTERNAL_MEMORY_H <freetype/internal/ftmemory.h> +#define FT_INTERNAL_DEBUG_H <freetype/internal/ftdebug.h> +#define FT_INTERNAL_CALC_H <freetype/internal/ftcalc.h> +#define FT_INTERNAL_DRIVER_H <freetype/internal/ftdriver.h> +#define FT_INTERNAL_TRACE_H <freetype/internal/fttrace.h> +#define FT_INTERNAL_GLYPH_LOADER_H <freetype/internal/ftgloadr.h> +#define FT_INTERNAL_SFNT_H <freetype/internal/sfnt.h> +#define FT_INTERNAL_SERVICE_H <freetype/internal/ftserv.h> +#define FT_INTERNAL_RFORK_H <freetype/internal/ftrfork.h> +#define FT_INTERNAL_VALIDATE_H <freetype/internal/ftvalid.h> + +#define FT_INTERNAL_TRUETYPE_TYPES_H <freetype/internal/tttypes.h> +#define FT_INTERNAL_TYPE1_TYPES_H <freetype/internal/t1types.h> + +#define FT_INTERNAL_POSTSCRIPT_AUX_H <freetype/internal/psaux.h> +#define FT_INTERNAL_POSTSCRIPT_HINTS_H <freetype/internal/pshints.h> +#define FT_INTERNAL_POSTSCRIPT_GLOBALS_H <freetype/internal/psglobal.h> + +#define FT_INTERNAL_AUTOHINT_H <freetype/internal/autohint.h> + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/psaux.h b/uppsrc/plugin/FT_fontsys/internal/psaux.h new file mode 100644 index 000000000..f7c4ebe04 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/psaux.h @@ -0,0 +1,873 @@ +/***************************************************************************/ +/* */ +/* psaux.h */ +/* */ +/* Auxiliary functions and data structures related to PostScript fonts */ +/* (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSAUX_H__ +#define __PSAUX_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1_TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct PS_TableRec_* PS_Table; + typedef const struct PS_Table_FuncsRec_* PS_Table_Funcs; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_Table_FuncsRec */ + /* */ + /* <Description> */ + /* A set of function pointers to manage PS_Table objects. */ + /* */ + /* <Fields> */ + /* table_init :: Used to initialize a table. */ + /* */ + /* table_done :: Finalizes resp. destroy a given table. */ + /* */ + /* table_add :: Adds a new object to a table. */ + /* */ + /* table_release :: Releases table data, then finalizes it. */ + /* */ + typedef struct PS_Table_FuncsRec_ + { + FT_Error + (*init)( PS_Table table, + FT_Int count, + FT_Memory memory ); + + void + (*done)( PS_Table table ); + + FT_Error + (*add)( PS_Table table, + FT_Int idx, + void* object, + FT_PtrDist length ); + + void + (*release)( PS_Table table ); + + } PS_Table_FuncsRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_TableRec */ + /* */ + /* <Description> */ + /* A PS_Table is a simple object used to store an array of objects in */ + /* a single memory block. */ + /* */ + /* <Fields> */ + /* block :: The address in memory of the growheap's block. This */ + /* can change between two object adds, due to */ + /* reallocation. */ + /* */ + /* cursor :: The current top of the grow heap within its block. */ + /* */ + /* capacity :: The current size of the heap block. Increments by */ + /* 1kByte chunks. */ + /* */ + /* max_elems :: The maximum number of elements in table. */ + /* */ + /* num_elems :: The current number of elements in table. */ + /* */ + /* elements :: A table of element addresses within the block. */ + /* */ + /* lengths :: A table of element sizes within the block. */ + /* */ + /* memory :: The object used for memory operations */ + /* (alloc/realloc). */ + /* */ + /* funcs :: A table of method pointers for this object. */ + /* */ + typedef struct PS_TableRec_ + { + FT_Byte* block; /* current memory block */ + FT_Offset cursor; /* current cursor in memory block */ + FT_Offset capacity; /* current size of memory block */ + FT_Long init; + + FT_Int max_elems; + FT_Int num_elems; + FT_Byte** elements; /* addresses of table elements */ + FT_PtrDist* lengths; /* lengths of table elements */ + + FT_Memory memory; + PS_Table_FuncsRec funcs; + + } PS_TableRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 FIELDS & TOKENS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PS_ParserRec_* PS_Parser; + + typedef struct T1_TokenRec_* T1_Token; + + typedef struct T1_FieldRec_* T1_Field; + + + /* simple enumeration type used to identify token types */ + typedef enum T1_TokenType_ + { + T1_TOKEN_TYPE_NONE = 0, + T1_TOKEN_TYPE_ANY, + T1_TOKEN_TYPE_STRING, + T1_TOKEN_TYPE_ARRAY, + T1_TOKEN_TYPE_KEY, /* aka `name' */ + + /* do not remove */ + T1_TOKEN_TYPE_MAX + + } T1_TokenType; + + + /* a simple structure used to identify tokens */ + typedef struct T1_TokenRec_ + { + FT_Byte* start; /* first character of token in input stream */ + FT_Byte* limit; /* first character after the token */ + T1_TokenType type; /* type of token */ + + } T1_TokenRec; + + + /* enumeration type used to identify object fields */ + typedef enum T1_FieldType_ + { + T1_FIELD_TYPE_NONE = 0, + T1_FIELD_TYPE_BOOL, + T1_FIELD_TYPE_INTEGER, + T1_FIELD_TYPE_FIXED, + T1_FIELD_TYPE_FIXED_1000, + T1_FIELD_TYPE_STRING, + T1_FIELD_TYPE_KEY, + T1_FIELD_TYPE_BBOX, + T1_FIELD_TYPE_INTEGER_ARRAY, + T1_FIELD_TYPE_FIXED_ARRAY, + T1_FIELD_TYPE_CALLBACK, + + /* do not remove */ + T1_FIELD_TYPE_MAX + + } T1_FieldType; + + + typedef enum T1_FieldLocation_ + { + T1_FIELD_LOCATION_CID_INFO, + T1_FIELD_LOCATION_FONT_DICT, + T1_FIELD_LOCATION_FONT_EXTRA, + T1_FIELD_LOCATION_FONT_INFO, + T1_FIELD_LOCATION_PRIVATE, + T1_FIELD_LOCATION_BBOX, + T1_FIELD_LOCATION_LOADER, + T1_FIELD_LOCATION_FACE, + T1_FIELD_LOCATION_BLEND, + + /* do not remove */ + T1_FIELD_LOCATION_MAX + + } T1_FieldLocation; + + + typedef void + (*T1_Field_ParseFunc)( FT_Face face, + FT_Pointer parser ); + + + /* structure type used to model object fields */ + typedef struct T1_FieldRec_ + { + const char* ident; /* field identifier */ + T1_FieldLocation location; + T1_FieldType type; /* type of field */ + T1_Field_ParseFunc reader; + FT_UInt offset; /* offset of field in object */ + FT_Byte size; /* size of field in bytes */ + FT_UInt array_max; /* maximal number of elements for */ + /* array */ + FT_UInt count_offset; /* offset of element count for */ + /* arrays; must not be zero if in */ + /* use -- in other words, a */ + /* `num_FOO' element must not */ + /* start the used structure if we */ + /* parse a `FOO' array */ + FT_UInt dict; /* where we expect it */ + } T1_FieldRec; + +#define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */ +#define T1_FIELD_DICT_PRIVATE ( 1 << 1 ) + + + +#define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \ + { \ + _ident, T1CODE, _type, \ + 0, \ + FT_FIELD_OFFSET( _fname ), \ + FT_FIELD_SIZE( _fname ), \ + 0, 0, \ + _dict \ + }, + +#define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \ + { \ + _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \ + (T1_Field_ParseFunc)_reader, \ + 0, 0, \ + 0, 0, \ + _dict \ + }, + +#define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \ + { \ + _ident, T1CODE, _type, \ + 0, \ + FT_FIELD_OFFSET( _fname ), \ + FT_FIELD_SIZE_DELTA( _fname ), \ + _max, \ + FT_FIELD_OFFSET( num_ ## _fname ), \ + _dict \ + }, + +#define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \ + { \ + _ident, T1CODE, _type, \ + 0, \ + FT_FIELD_OFFSET( _fname ), \ + FT_FIELD_SIZE_DELTA( _fname ), \ + _max, 0, \ + _dict \ + }, + + +#define T1_FIELD_BOOL( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict ) + +#define T1_FIELD_NUM( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict ) + +#define T1_FIELD_FIXED( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict ) + +#define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \ + _dict ) + +#define T1_FIELD_STRING( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict ) + +#define T1_FIELD_KEY( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict ) + +#define T1_FIELD_BBOX( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict ) + + +#define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_CALLBACK( _ident, _name, _dict ) \ + T1_NEW_CALLBACK_FIELD( _ident, _name, _dict ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs; + + typedef struct PS_Parser_FuncsRec_ + { + void + (*init)( PS_Parser parser, + FT_Byte* base, + FT_Byte* limit, + FT_Memory memory ); + + void + (*done)( PS_Parser parser ); + + void + (*skip_spaces)( PS_Parser parser ); + void + (*skip_PS_token)( PS_Parser parser ); + + FT_Long + (*to_int)( PS_Parser parser ); + FT_Fixed + (*to_fixed)( PS_Parser parser, + FT_Int power_ten ); + + FT_Error + (*to_bytes)( PS_Parser parser, + FT_Byte* bytes, + FT_Offset max_bytes, + FT_Long* pnum_bytes, + FT_Bool delimiters ); + + FT_Int + (*to_coord_array)( PS_Parser parser, + FT_Int max_coords, + FT_Short* coords ); + FT_Int + (*to_fixed_array)( PS_Parser parser, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ); + + void + (*to_token)( PS_Parser parser, + T1_Token token ); + void + (*to_token_array)( PS_Parser parser, + T1_Token tokens, + FT_UInt max_tokens, + FT_Int* pnum_tokens ); + + FT_Error + (*load_field)( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + FT_Error + (*load_field_table)( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + } PS_Parser_FuncsRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_ParserRec */ + /* */ + /* <Description> */ + /* A PS_Parser is an object used to parse a Type 1 font very quickly. */ + /* */ + /* <Fields> */ + /* cursor :: The current position in the text. */ + /* */ + /* base :: Start of the processed text. */ + /* */ + /* limit :: End of the processed text. */ + /* */ + /* error :: The last error returned. */ + /* */ + /* memory :: The object used for memory operations (alloc/realloc). */ + /* */ + /* funcs :: A table of functions for the parser. */ + /* */ + typedef struct PS_ParserRec_ + { + FT_Byte* cursor; + FT_Byte* base; + FT_Byte* limit; + FT_Error error; + FT_Memory memory; + + PS_Parser_FuncsRec funcs; + + } PS_ParserRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct T1_BuilderRec_* T1_Builder; + + + typedef FT_Error + (*T1_Builder_Check_Points_Func)( T1_Builder builder, + FT_Int count ); + + typedef void + (*T1_Builder_Add_Point_Func)( T1_Builder builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ); + + typedef FT_Error + (*T1_Builder_Add_Point1_Func)( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + typedef FT_Error + (*T1_Builder_Add_Contour_Func)( T1_Builder builder ); + + typedef FT_Error + (*T1_Builder_Start_Point_Func)( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + typedef void + (*T1_Builder_Close_Contour_Func)( T1_Builder builder ); + + + typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs; + + typedef struct T1_Builder_FuncsRec_ + { + void + (*init)( T1_Builder builder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Bool hinting ); + + void + (*done)( T1_Builder builder ); + + T1_Builder_Check_Points_Func check_points; + T1_Builder_Add_Point_Func add_point; + T1_Builder_Add_Point1_Func add_point1; + T1_Builder_Add_Contour_Func add_contour; + T1_Builder_Start_Point_Func start_point; + T1_Builder_Close_Contour_Func close_contour; + + } T1_Builder_FuncsRec; + + + /* an enumeration type to handle charstring parsing states */ + typedef enum T1_ParseState_ + { + T1_Parse_Start, + T1_Parse_Have_Width, + T1_Parse_Have_Moveto, + T1_Parse_Have_Path + + } T1_ParseState; + + + /*************************************************************************/ + /* */ + /* <Structure> */ + /* T1_BuilderRec */ + /* */ + /* <Description> */ + /* A structure used during glyph loading to store its outline. */ + /* */ + /* <Fields> */ + /* memory :: The current memory object. */ + /* */ + /* face :: The current face object. */ + /* */ + /* glyph :: The current glyph slot. */ + /* */ + /* loader :: XXX */ + /* */ + /* base :: The base glyph outline. */ + /* */ + /* current :: The current glyph outline. */ + /* */ + /* max_points :: maximum points in builder outline */ + /* */ + /* max_contours :: Maximal number of contours in builder outline. */ + /* */ + /* pos_x :: The horizontal translation (if composite glyph). */ + /* */ + /* pos_y :: The vertical translation (if composite glyph). */ + /* */ + /* left_bearing :: The left side bearing point. */ + /* */ + /* advance :: The horizontal advance vector. */ + /* */ + /* bbox :: Unused. */ + /* */ + /* parse_state :: An enumeration which controls the charstring */ + /* parsing state. */ + /* */ + /* load_points :: If this flag is not set, no points are loaded. */ + /* */ + /* no_recurse :: Set but not used. */ + /* */ + /* metrics_only :: A boolean indicating that we only want to compute */ + /* the metrics of a given glyph, not load all of its */ + /* points. */ + /* */ + /* funcs :: An array of function pointers for the builder. */ + /* */ + typedef struct T1_BuilderRec_ + { + FT_Memory memory; + FT_Face face; + FT_GlyphSlot glyph; + FT_GlyphLoader loader; + FT_Outline* base; + FT_Outline* current; + + FT_Pos pos_x; + FT_Pos pos_y; + + FT_Vector left_bearing; + FT_Vector advance; + + FT_BBox bbox; /* bounding box */ + T1_ParseState parse_state; + FT_Bool load_points; + FT_Bool no_recurse; + + FT_Bool metrics_only; + + void* hints_funcs; /* hinter-specific */ + void* hints_globals; /* hinter-specific */ + + T1_Builder_FuncsRec funcs; + + } T1_BuilderRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 DECODER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#if 0 + + /*************************************************************************/ + /* */ + /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ + /* calls during glyph loading. */ + /* */ +#define T1_MAX_SUBRS_CALLS 8 + + + /*************************************************************************/ + /* */ + /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ + /* minimum of 16 is required. */ + /* */ +#define T1_MAX_CHARSTRINGS_OPERANDS 32 + +#endif /* 0 */ + + + typedef struct T1_Decoder_ZoneRec_ + { + FT_Byte* cursor; + FT_Byte* base; + FT_Byte* limit; + + } T1_Decoder_ZoneRec, *T1_Decoder_Zone; + + + typedef struct T1_DecoderRec_* T1_Decoder; + typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs; + + + typedef FT_Error + (*T1_Decoder_Callback)( T1_Decoder decoder, + FT_UInt glyph_index ); + + + typedef struct T1_Decoder_FuncsRec_ + { + FT_Error + (*init)( T1_Decoder decoder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Byte** glyph_names, + PS_Blend blend, + FT_Bool hinting, + FT_Render_Mode hint_mode, + T1_Decoder_Callback callback ); + + void + (*done)( T1_Decoder decoder ); + + FT_Error + (*parse_charstrings)( T1_Decoder decoder, + FT_Byte* base, + FT_UInt len ); + + } T1_Decoder_FuncsRec; + + + typedef struct T1_DecoderRec_ + { + T1_BuilderRec builder; + + FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS]; + FT_Long* top; + + T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1]; + T1_Decoder_Zone zone; + + FT_Service_PsCMaps psnames; /* for seac */ + FT_UInt num_glyphs; + FT_Byte** glyph_names; + + FT_Int lenIV; /* internal for sub routine calls */ + FT_UInt num_subrs; + FT_Byte** subrs; + FT_PtrDist* subrs_len; /* array of subrs length (optional) */ + + FT_Matrix font_matrix; + FT_Vector font_offset; + + FT_Int flex_state; + FT_Int num_flex_vectors; + FT_Vector flex_vectors[7]; + + PS_Blend blend; /* for multiple master support */ + + FT_Render_Mode hint_mode; + + T1_Decoder_Callback parse_callback; + T1_Decoder_FuncsRec funcs; + + FT_Long* buildchar; + FT_UInt len_buildchar; + + FT_Bool seac; + + } T1_DecoderRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** AFM PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct AFM_ParserRec_* AFM_Parser; + + typedef struct AFM_Parser_FuncsRec_ + { + FT_Error + (*init)( AFM_Parser parser, + FT_Memory memory, + FT_Byte* base, + FT_Byte* limit ); + + void + (*done)( AFM_Parser parser ); + + FT_Error + (*parse)( AFM_Parser parser ); + + } AFM_Parser_FuncsRec; + + + typedef struct AFM_StreamRec_* AFM_Stream; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* AFM_ParserRec */ + /* */ + /* <Description> */ + /* An AFM_Parser is a parser for the AFM files. */ + /* */ + /* <Fields> */ + /* memory :: The object used for memory operations (alloc and */ + /* realloc). */ + /* */ + /* stream :: This is an opaque object. */ + /* */ + /* FontInfo :: The result will be stored here. */ + /* */ + /* get_index :: A user provided function to get a glyph index by its */ + /* name. */ + /* */ + typedef struct AFM_ParserRec_ + { + FT_Memory memory; + AFM_Stream stream; + + AFM_FontInfo FontInfo; + + FT_Int + (*get_index)( const char* name, + FT_Offset len, + void* user_data ); + + void* user_data; + + } AFM_ParserRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 CHARMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes; + + typedef struct T1_CMap_ClassesRec_ + { + FT_CMap_Class standard; + FT_CMap_Class expert; + FT_CMap_Class custom; + FT_CMap_Class unicode; + + } T1_CMap_ClassesRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PSAux Module Interface *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PSAux_ServiceRec_ + { + /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */ + const PS_Table_FuncsRec* ps_table_funcs; + const PS_Parser_FuncsRec* ps_parser_funcs; + const T1_Builder_FuncsRec* t1_builder_funcs; + const T1_Decoder_FuncsRec* t1_decoder_funcs; + + void + (*t1_decrypt)( FT_Byte* buffer, + FT_Offset length, + FT_UShort seed ); + + T1_CMap_Classes t1_cmap_classes; + + /* fields after this comment line were added after version 2.1.10 */ + const AFM_Parser_FuncsRec* afm_parser_funcs; + + } PSAux_ServiceRec, *PSAux_Service; + + /* backwards-compatible type definition */ + typedef PSAux_ServiceRec PSAux_Interface; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Some convenience functions *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define IS_PS_NEWLINE( ch ) \ + ( (ch) == '\r' || \ + (ch) == '\n' ) + +#define IS_PS_SPACE( ch ) \ + ( (ch) == ' ' || \ + IS_PS_NEWLINE( ch ) || \ + (ch) == '\t' || \ + (ch) == '\f' || \ + (ch) == '\0' ) + +#define IS_PS_SPECIAL( ch ) \ + ( (ch) == '/' || \ + (ch) == '(' || (ch) == ')' || \ + (ch) == '<' || (ch) == '>' || \ + (ch) == '[' || (ch) == ']' || \ + (ch) == '{' || (ch) == '}' || \ + (ch) == '%' ) + +#define IS_PS_DELIM( ch ) \ + ( IS_PS_SPACE( ch ) || \ + IS_PS_SPECIAL( ch ) ) + +#define IS_PS_DIGIT( ch ) \ + ( (ch) >= '0' && (ch) <= '9' ) + +#define IS_PS_XDIGIT( ch ) \ + ( IS_PS_DIGIT( ch ) || \ + ( (ch) >= 'A' && (ch) <= 'F' ) || \ + ( (ch) >= 'a' && (ch) <= 'f' ) ) + +#define IS_PS_BASE85( ch ) \ + ( (ch) >= '!' && (ch) <= 'u' ) + +#define IS_PS_TOKEN( cur, limit, token ) \ + ( (char)(cur)[0] == (token)[0] && \ + ( (cur) + sizeof ( (token) ) == (limit) || \ + ( (cur) + sizeof( (token) ) < (limit) && \ + IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \ + ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 ) + + +FT_END_HEADER + +#endif /* __PSAUX_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/pshints.h b/uppsrc/plugin/FT_fontsys/internal/pshints.h new file mode 100644 index 000000000..7447ca9c3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/pshints.h @@ -0,0 +1,712 @@ +/***************************************************************************/ +/* */ +/* pshints.h */ +/* */ +/* Interface to Postscript-specific (Type 1 and Type 2) hints */ +/* recorders (specification only). These are used to support native */ +/* T1/T2 hints in the `type1', `cid', and `cff' font drivers. */ +/* */ +/* Copyright 2001, 2002, 2003, 2005, 2006, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHINTS_H__ +#define __PSHINTS_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** INTERNAL REPRESENTATION OF GLOBALS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PSH_GlobalsRec_* PSH_Globals; + + typedef FT_Error + (*PSH_Globals_NewFunc)( FT_Memory memory, + T1_Private* private_dict, + PSH_Globals* aglobals ); + + typedef FT_Error + (*PSH_Globals_SetScaleFunc)( PSH_Globals globals, + FT_Fixed x_scale, + FT_Fixed y_scale, + FT_Fixed x_delta, + FT_Fixed y_delta ); + + typedef void + (*PSH_Globals_DestroyFunc)( PSH_Globals globals ); + + + typedef struct PSH_Globals_FuncsRec_ + { + PSH_Globals_NewFunc create; + PSH_Globals_SetScaleFunc set_scale; + PSH_Globals_DestroyFunc destroy; + + } PSH_Globals_FuncsRec, *PSH_Globals_Funcs; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PUBLIC TYPE 1 HINTS RECORDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /************************************************************************* + * + * @type: + * T1_Hints + * + * @description: + * This is a handle to an opaque structure used to record glyph hints + * from a Type 1 character glyph character string. + * + * The methods used to operate on this object are defined by the + * @T1_Hints_FuncsRec structure. Recording glyph hints is normally + * achieved through the following scheme: + * + * - Open a new hint recording session by calling the `open' method. + * This rewinds the recorder and prepare it for new input. + * + * - For each hint found in the glyph charstring, call the corresponding + * method (`stem', `stem3', or `reset'). Note that these functions do + * not return an error code. + * + * - Close the recording session by calling the `close' method. It + * returns an error code if the hints were invalid or something + * strange happened (e.g., memory shortage). + * + * The hints accumulated in the object can later be used by the + * PostScript hinter. + * + */ + typedef struct T1_HintsRec_* T1_Hints; + + + /************************************************************************* + * + * @type: + * T1_Hints_Funcs + * + * @description: + * A pointer to the @T1_Hints_FuncsRec structure that defines the API of + * a given @T1_Hints object. + * + */ + typedef const struct T1_Hints_FuncsRec_* T1_Hints_Funcs; + + + /************************************************************************* + * + * @functype: + * T1_Hints_OpenFunc + * + * @description: + * A method of the @T1_Hints class used to prepare it for a new Type 1 + * hints recording session. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * @note: + * You should always call the @T1_Hints_CloseFunc method in order to + * close an opened recording session. + * + */ + typedef void + (*T1_Hints_OpenFunc)( T1_Hints hints ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_SetStemFunc + * + * @description: + * A method of the @T1_Hints class used to record a new horizontal or + * vertical stem. This corresponds to the Type 1 `hstem' and `vstem' + * operators. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * dimension :: + * 0 for horizontal stems (hstem), 1 for vertical ones (vstem). + * + * coords :: + * Array of 2 coordinates in 16.16 format, used as (position,length) + * stem descriptor. + * + * @note: + * Use vertical coordinates (y) for horizontal stems (dim=0). Use + * horizontal coordinates (x) for vertical stems (dim=1). + * + * `coords[0]' is the absolute stem position (lowest coordinate); + * `coords[1]' is the length. + * + * The length can be negative, in which case it must be either -20 or + * -21. It is interpreted as a `ghost' stem, according to the Type 1 + * specification. + * + * If the length is -21 (corresponding to a bottom ghost stem), then + * the real stem position is `coords[0]+coords[1]'. + * + */ + typedef void + (*T1_Hints_SetStemFunc)( T1_Hints hints, + FT_UInt dimension, + FT_Fixed* coords ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_SetStem3Func + * + * @description: + * A method of the @T1_Hints class used to record three + * counter-controlled horizontal or vertical stems at once. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * dimension :: + * 0 for horizontal stems, 1 for vertical ones. + * + * coords :: + * An array of 6 values in 16.16 format, holding 3 (position,length) + * pairs for the counter-controlled stems. + * + * @note: + * Use vertical coordinates (y) for horizontal stems (dim=0). Use + * horizontal coordinates (x) for vertical stems (dim=1). + * + * The lengths cannot be negative (ghost stems are never + * counter-controlled). + * + */ + typedef void + (*T1_Hints_SetStem3Func)( T1_Hints hints, + FT_UInt dimension, + FT_Fixed* coords ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_ResetFunc + * + * @description: + * A method of the @T1_Hints class used to reset the stems hints in a + * recording session. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * end_point :: + * The index of the last point in the input glyph in which the + * previously defined hints apply. + * + */ + typedef void + (*T1_Hints_ResetFunc)( T1_Hints hints, + FT_UInt end_point ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_CloseFunc + * + * @description: + * A method of the @T1_Hints class used to close a hint recording + * session. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * end_point :: + * The index of the last point in the input glyph. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * The error code is set to indicate that an error occurred during the + * recording session. + * + */ + typedef FT_Error + (*T1_Hints_CloseFunc)( T1_Hints hints, + FT_UInt end_point ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_ApplyFunc + * + * @description: + * A method of the @T1_Hints class used to apply hints to the + * corresponding glyph outline. Must be called once all hints have been + * recorded. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * outline :: + * A pointer to the target outline descriptor. + * + * globals :: + * The hinter globals for this font. + * + * hint_mode :: + * Hinting information. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * On input, all points within the outline are in font coordinates. On + * output, they are in 1/64th of pixels. + * + * The scaling transformation is taken from the `globals' object which + * must correspond to the same font as the glyph. + * + */ + typedef FT_Error + (*T1_Hints_ApplyFunc)( T1_Hints hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ); + + + /************************************************************************* + * + * @struct: + * T1_Hints_FuncsRec + * + * @description: + * The structure used to provide the API to @T1_Hints objects. + * + * @fields: + * hints :: + * A handle to the T1 Hints recorder. + * + * open :: + * The function to open a recording session. + * + * close :: + * The function to close a recording session. + * + * stem :: + * The function to set a simple stem. + * + * stem3 :: + * The function to set counter-controlled stems. + * + * reset :: + * The function to reset stem hints. + * + * apply :: + * The function to apply the hints to the corresponding glyph outline. + * + */ + typedef struct T1_Hints_FuncsRec_ + { + T1_Hints hints; + T1_Hints_OpenFunc open; + T1_Hints_CloseFunc close; + T1_Hints_SetStemFunc stem; + T1_Hints_SetStem3Func stem3; + T1_Hints_ResetFunc reset; + T1_Hints_ApplyFunc apply; + + } T1_Hints_FuncsRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PUBLIC TYPE 2 HINTS RECORDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /************************************************************************* + * + * @type: + * T2_Hints + * + * @description: + * This is a handle to an opaque structure used to record glyph hints + * from a Type 2 character glyph character string. + * + * The methods used to operate on this object are defined by the + * @T2_Hints_FuncsRec structure. Recording glyph hints is normally + * achieved through the following scheme: + * + * - Open a new hint recording session by calling the `open' method. + * This rewinds the recorder and prepare it for new input. + * + * - For each hint found in the glyph charstring, call the corresponding + * method (`stems', `hintmask', `counters'). Note that these + * functions do not return an error code. + * + * - Close the recording session by calling the `close' method. It + * returns an error code if the hints were invalid or something + * strange happened (e.g., memory shortage). + * + * The hints accumulated in the object can later be used by the + * Postscript hinter. + * + */ + typedef struct T2_HintsRec_* T2_Hints; + + + /************************************************************************* + * + * @type: + * T2_Hints_Funcs + * + * @description: + * A pointer to the @T2_Hints_FuncsRec structure that defines the API of + * a given @T2_Hints object. + * + */ + typedef const struct T2_Hints_FuncsRec_* T2_Hints_Funcs; + + + /************************************************************************* + * + * @functype: + * T2_Hints_OpenFunc + * + * @description: + * A method of the @T2_Hints class used to prepare it for a new Type 2 + * hints recording session. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * @note: + * You should always call the @T2_Hints_CloseFunc method in order to + * close an opened recording session. + * + */ + typedef void + (*T2_Hints_OpenFunc)( T2_Hints hints ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_StemsFunc + * + * @description: + * A method of the @T2_Hints class used to set the table of stems in + * either the vertical or horizontal dimension. Equivalent to the + * `hstem', `vstem', `hstemhm', and `vstemhm' Type 2 operators. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * dimension :: + * 0 for horizontal stems (hstem), 1 for vertical ones (vstem). + * + * count :: + * The number of stems. + * + * coords :: + * An array of `count' (position,length) pairs in 16.16 format. + * + * @note: + * Use vertical coordinates (y) for horizontal stems (dim=0). Use + * horizontal coordinates (x) for vertical stems (dim=1). + * + * There are `2*count' elements in the `coords' array. Each even + * element is an absolute position in font units, each odd element is a + * length in font units. + * + * A length can be negative, in which case it must be either -20 or + * -21. It is interpreted as a `ghost' stem, according to the Type 1 + * specification. + * + */ + typedef void + (*T2_Hints_StemsFunc)( T2_Hints hints, + FT_UInt dimension, + FT_UInt count, + FT_Fixed* coordinates ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_MaskFunc + * + * @description: + * A method of the @T2_Hints class used to set a given hintmask (this + * corresponds to the `hintmask' Type 2 operator). + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * end_point :: + * The glyph index of the last point to which the previously defined + * or activated hints apply. + * + * bit_count :: + * The number of bits in the hint mask. + * + * bytes :: + * An array of bytes modelling the hint mask. + * + * @note: + * If the hintmask starts the charstring (before any glyph point + * definition), the value of `end_point' should be 0. + * + * `bit_count' is the number of meaningful bits in the `bytes' array; it + * must be equal to the total number of hints defined so far (i.e., + * horizontal+verticals). + * + * The `bytes' array can come directly from the Type 2 charstring and + * respects the same format. + * + */ + typedef void + (*T2_Hints_MaskFunc)( T2_Hints hints, + FT_UInt end_point, + FT_UInt bit_count, + const FT_Byte* bytes ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_CounterFunc + * + * @description: + * A method of the @T2_Hints class used to set a given counter mask + * (this corresponds to the `hintmask' Type 2 operator). + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * end_point :: + * A glyph index of the last point to which the previously defined or + * active hints apply. + * + * bit_count :: + * The number of bits in the hint mask. + * + * bytes :: + * An array of bytes modelling the hint mask. + * + * @note: + * If the hintmask starts the charstring (before any glyph point + * definition), the value of `end_point' should be 0. + * + * `bit_count' is the number of meaningful bits in the `bytes' array; it + * must be equal to the total number of hints defined so far (i.e., + * horizontal+verticals). + * + * The `bytes' array can come directly from the Type 2 charstring and + * respects the same format. + * + */ + typedef void + (*T2_Hints_CounterFunc)( T2_Hints hints, + FT_UInt bit_count, + const FT_Byte* bytes ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_CloseFunc + * + * @description: + * A method of the @T2_Hints class used to close a hint recording + * session. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * end_point :: + * The index of the last point in the input glyph. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * The error code is set to indicate that an error occurred during the + * recording session. + * + */ + typedef FT_Error + (*T2_Hints_CloseFunc)( T2_Hints hints, + FT_UInt end_point ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_ApplyFunc + * + * @description: + * A method of the @T2_Hints class used to apply hints to the + * corresponding glyph outline. Must be called after the `close' + * method. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * outline :: + * A pointer to the target outline descriptor. + * + * globals :: + * The hinter globals for this font. + * + * hint_mode :: + * Hinting information. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * On input, all points within the outline are in font coordinates. On + * output, they are in 1/64th of pixels. + * + * The scaling transformation is taken from the `globals' object which + * must correspond to the same font than the glyph. + * + */ + typedef FT_Error + (*T2_Hints_ApplyFunc)( T2_Hints hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ); + + + /************************************************************************* + * + * @struct: + * T2_Hints_FuncsRec + * + * @description: + * The structure used to provide the API to @T2_Hints objects. + * + * @fields: + * hints :: + * A handle to the T2 hints recorder object. + * + * open :: + * The function to open a recording session. + * + * close :: + * The function to close a recording session. + * + * stems :: + * The function to set the dimension's stems table. + * + * hintmask :: + * The function to set hint masks. + * + * counter :: + * The function to set counter masks. + * + * apply :: + * The function to apply the hints on the corresponding glyph outline. + * + */ + typedef struct T2_Hints_FuncsRec_ + { + T2_Hints hints; + T2_Hints_OpenFunc open; + T2_Hints_CloseFunc close; + T2_Hints_StemsFunc stems; + T2_Hints_MaskFunc hintmask; + T2_Hints_CounterFunc counter; + T2_Hints_ApplyFunc apply; + + } T2_Hints_FuncsRec; + + + /* */ + + + typedef struct PSHinter_Interface_ + { + PSH_Globals_Funcs (*get_globals_funcs)( FT_Module module ); + T1_Hints_Funcs (*get_t1_funcs) ( FT_Module module ); + T2_Hints_Funcs (*get_t2_funcs) ( FT_Module module ); + + } PSHinter_Interface; + + typedef PSHinter_Interface* PSHinter_Service; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_PSHINTER_INTERFACE(class_, get_globals_funcs_, \ + get_t1_funcs_, get_t2_funcs_) \ + static const PSHinter_Interface class_ = \ + { \ + get_globals_funcs_, get_t1_funcs_, get_t2_funcs_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_PSHINTER_INTERFACE(class_, get_globals_funcs_, \ + get_t1_funcs_, get_t2_funcs_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + PSHinter_Interface* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->get_globals_funcs = get_globals_funcs_; \ + clazz->get_t1_funcs = get_t1_funcs_; \ + clazz->get_t2_funcs = get_t2_funcs_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __PSHINTS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svbdf.h b/uppsrc/plugin/FT_fontsys/internal/services/svbdf.h new file mode 100644 index 000000000..926423914 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svbdf.h @@ -0,0 +1,77 @@ +/***************************************************************************/ +/* */ +/* svbdf.h */ +/* */ +/* The FreeType BDF services (specification). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVBDF_H__ +#define __SVBDF_H__ + +#include FT_BDF_H +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_BDF "bdf" + + typedef FT_Error + (*FT_BDF_GetCharsetIdFunc)( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ); + + typedef FT_Error + (*FT_BDF_GetPropertyFunc)( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ); + + + FT_DEFINE_SERVICE( BDF ) + { + FT_BDF_GetCharsetIdFunc get_charset_id; + FT_BDF_GetPropertyFunc get_property; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_BDFRec(class_, get_charset_id_, get_property_) \ + static const FT_Service_BDFRec class_ = \ + { \ + get_charset_id_, get_property_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_BDFRec(class_, get_charset_id_, get_property_) \ + void \ + FT_Init_Class_##class_( FT_Service_BDFRec* clazz ) \ + { \ + clazz->get_charset_id = get_charset_id_; \ + clazz->get_property = get_property_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVBDF_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svcid.h b/uppsrc/plugin/FT_fontsys/internal/services/svcid.h new file mode 100644 index 000000000..9b874b5e7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svcid.h @@ -0,0 +1,83 @@ +/***************************************************************************/ +/* */ +/* svcid.h */ +/* */ +/* The FreeType CID font services (specification). */ +/* */ +/* Copyright 2007, 2009 by Derek Clegg, Michael Toftdal. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVCID_H__ +#define __SVCID_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_CID "CID" + + typedef FT_Error + (*FT_CID_GetRegistryOrderingSupplementFunc)( FT_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ); + typedef FT_Error + (*FT_CID_GetIsInternallyCIDKeyedFunc)( FT_Face face, + FT_Bool *is_cid ); + typedef FT_Error + (*FT_CID_GetCIDFromGlyphIndexFunc)( FT_Face face, + FT_UInt glyph_index, + FT_UInt *cid ); + + FT_DEFINE_SERVICE( CID ) + { + FT_CID_GetRegistryOrderingSupplementFunc get_ros; + FT_CID_GetIsInternallyCIDKeyedFunc get_is_cid; + FT_CID_GetCIDFromGlyphIndexFunc get_cid_from_glyph_index; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_CIDREC(class_, get_ros_, \ + get_is_cid_, get_cid_from_glyph_index_ ) \ + static const FT_Service_CIDRec class_ = \ + { \ + get_ros_, get_is_cid_, get_cid_from_glyph_index_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_CIDREC(class_, get_ros_, \ + get_is_cid_, get_cid_from_glyph_index_ ) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_Service_CIDRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->get_ros = get_ros_; \ + clazz->get_is_cid = get_is_cid_; \ + clazz->get_cid_from_glyph_index = get_cid_from_glyph_index_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVCID_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svgldict.h b/uppsrc/plugin/FT_fontsys/internal/services/svgldict.h new file mode 100644 index 000000000..d66a41d5a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svgldict.h @@ -0,0 +1,82 @@ +/***************************************************************************/ +/* */ +/* svgldict.h */ +/* */ +/* The FreeType glyph dictionary services (specification). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVGLDICT_H__ +#define __SVGLDICT_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + + /* + * A service used to retrieve glyph names, as well as to find the + * index of a given glyph name in a font. + * + */ + +#define FT_SERVICE_ID_GLYPH_DICT "glyph-dict" + + + typedef FT_Error + (*FT_GlyphDict_GetNameFunc)( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ); + + typedef FT_UInt + (*FT_GlyphDict_NameIndexFunc)( FT_Face face, + FT_String* glyph_name ); + + + FT_DEFINE_SERVICE( GlyphDict ) + { + FT_GlyphDict_GetNameFunc get_name; + FT_GlyphDict_NameIndexFunc name_index; /* optional */ + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_GLYPHDICTREC(class_, get_name_, name_index_) \ + static const FT_Service_GlyphDictRec class_ = \ + { \ + get_name_, name_index_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_GLYPHDICTREC(class_, get_name_, name_index_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_Service_GlyphDictRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->get_name = get_name_; \ + clazz->name_index = name_index_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVGLDICT_H__ */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svgxval.h b/uppsrc/plugin/FT_fontsys/internal/services/svgxval.h new file mode 100644 index 000000000..2cdab5065 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svgxval.h @@ -0,0 +1,72 @@ +/***************************************************************************/ +/* */ +/* svgxval.h */ +/* */ +/* FreeType API for validating TrueTypeGX/AAT tables (specification). */ +/* */ +/* Copyright 2004, 2005 by */ +/* Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVGXVAL_H__ +#define __SVGXVAL_H__ + +#include FT_GX_VALIDATE_H +#include FT_INTERNAL_VALIDATE_H + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_GX_VALIDATE "truetypegx-validate" +#define FT_SERVICE_ID_CLASSICKERN_VALIDATE "classickern-validate" + + typedef FT_Error + (*gxv_validate_func)( FT_Face face, + FT_UInt gx_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_length ); + + + typedef FT_Error + (*ckern_validate_func)( FT_Face face, + FT_UInt ckern_flags, + FT_Bytes *ckern_table ); + + + FT_DEFINE_SERVICE( GXvalidate ) + { + gxv_validate_func validate; + }; + + FT_DEFINE_SERVICE( CKERNvalidate ) + { + ckern_validate_func validate; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVGXVAL_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svkern.h b/uppsrc/plugin/FT_fontsys/internal/services/svkern.h new file mode 100644 index 000000000..1488adf49 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svkern.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* svkern.h */ +/* */ +/* The FreeType Kerning service (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVKERN_H__ +#define __SVKERN_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + +#define FT_SERVICE_ID_KERNING "kerning" + + + typedef FT_Error + (*FT_Kerning_TrackGetFunc)( FT_Face face, + FT_Fixed point_size, + FT_Int degree, + FT_Fixed* akerning ); + + FT_DEFINE_SERVICE( Kerning ) + { + FT_Kerning_TrackGetFunc get_track; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVKERN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svmm.h b/uppsrc/plugin/FT_fontsys/internal/services/svmm.h new file mode 100644 index 000000000..66e1da22f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svmm.h @@ -0,0 +1,104 @@ +/***************************************************************************/ +/* */ +/* svmm.h */ +/* */ +/* The FreeType Multiple Masters and GX var services (specification). */ +/* */ +/* Copyright 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVMM_H__ +#define __SVMM_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + + /* + * A service used to manage multiple-masters data in a given face. + * + * See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H). + * + */ + +#define FT_SERVICE_ID_MULTI_MASTERS "multi-masters" + + + typedef FT_Error + (*FT_Get_MM_Func)( FT_Face face, + FT_Multi_Master* master ); + + typedef FT_Error + (*FT_Get_MM_Var_Func)( FT_Face face, + FT_MM_Var* *master ); + + typedef FT_Error + (*FT_Set_MM_Design_Func)( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + typedef FT_Error + (*FT_Set_Var_Design_Func)( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + typedef FT_Error + (*FT_Set_MM_Blend_Func)( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + + FT_DEFINE_SERVICE( MultiMasters ) + { + FT_Get_MM_Func get_mm; + FT_Set_MM_Design_Func set_mm_design; + FT_Set_MM_Blend_Func set_mm_blend; + FT_Get_MM_Var_Func get_mm_var; + FT_Set_Var_Design_Func set_var_design; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_MULTIMASTERSREC(class_, get_mm_, set_mm_design_, \ + set_mm_blend_, get_mm_var_, set_var_design_) \ + static const FT_Service_MultiMastersRec class_ = \ + { \ + get_mm_, set_mm_design_, set_mm_blend_, get_mm_var_, set_var_design_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_MULTIMASTERSREC(class_, get_mm_, set_mm_design_, \ + set_mm_blend_, get_mm_var_, set_var_design_) \ + void \ + FT_Init_Class_##class_( FT_Service_MultiMastersRec* clazz ) \ + { \ + clazz->get_mm = get_mm_; \ + clazz->set_mm_design = set_mm_design_; \ + clazz->set_mm_blend = set_mm_blend_; \ + clazz->get_mm_var = get_mm_var_; \ + clazz->set_var_design = set_var_design_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + +#endif /* __SVMM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svotval.h b/uppsrc/plugin/FT_fontsys/internal/services/svotval.h new file mode 100644 index 000000000..970bbd575 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svotval.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* svotval.h */ +/* */ +/* The FreeType OpenType validation service (specification). */ +/* */ +/* Copyright 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVOTVAL_H__ +#define __SVOTVAL_H__ + +#include FT_OPENTYPE_VALIDATE_H +#include FT_INTERNAL_VALIDATE_H + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_OPENTYPE_VALIDATE "opentype-validate" + + + typedef FT_Error + (*otv_validate_func)( FT_Face volatile face, + FT_UInt ot_flags, + FT_Bytes *base, + FT_Bytes *gdef, + FT_Bytes *gpos, + FT_Bytes *gsub, + FT_Bytes *jstf ); + + + FT_DEFINE_SERVICE( OTvalidate ) + { + otv_validate_func validate; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVOTVAL_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svpfr.h b/uppsrc/plugin/FT_fontsys/internal/services/svpfr.h new file mode 100644 index 000000000..462786f9c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svpfr.h @@ -0,0 +1,66 @@ +/***************************************************************************/ +/* */ +/* svpfr.h */ +/* */ +/* Internal PFR service functions (specification). */ +/* */ +/* Copyright 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPFR_H__ +#define __SVPFR_H__ + +#include FT_PFR_H +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_PFR_METRICS "pfr-metrics" + + + typedef FT_Error + (*FT_PFR_GetMetricsFunc)( FT_Face face, + FT_UInt *aoutline, + FT_UInt *ametrics, + FT_Fixed *ax_scale, + FT_Fixed *ay_scale ); + + typedef FT_Error + (*FT_PFR_GetKerningFunc)( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ); + + typedef FT_Error + (*FT_PFR_GetAdvanceFunc)( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ); + + + FT_DEFINE_SERVICE( PfrMetrics ) + { + FT_PFR_GetMetricsFunc get_metrics; + FT_PFR_GetKerningFunc get_kerning; + FT_PFR_GetAdvanceFunc get_advance; + + }; + + /* */ + +FT_END_HEADER + +#endif /* __SVPFR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svpostnm.h b/uppsrc/plugin/FT_fontsys/internal/services/svpostnm.h new file mode 100644 index 000000000..106c54f85 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svpostnm.h @@ -0,0 +1,79 @@ +/***************************************************************************/ +/* */ +/* svpostnm.h */ +/* */ +/* The FreeType PostScript name services (specification). */ +/* */ +/* Copyright 2003, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPOSTNM_H__ +#define __SVPOSTNM_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + /* + * A trivial service used to retrieve the PostScript name of a given + * font when available. The `get_name' field should never be NULL. + * + * The corresponding function can return NULL to indicate that the + * PostScript name is not available. + * + * The name is owned by the face and will be destroyed with it. + */ + +#define FT_SERVICE_ID_POSTSCRIPT_FONT_NAME "postscript-font-name" + + + typedef const char* + (*FT_PsName_GetFunc)( FT_Face face ); + + + FT_DEFINE_SERVICE( PsFontName ) + { + FT_PsName_GetFunc get_ps_font_name; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_PSFONTNAMEREC(class_, get_ps_font_name_) \ + static const FT_Service_PsFontNameRec class_ = \ + { \ + get_ps_font_name_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_PSFONTNAMEREC(class_, get_ps_font_name_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_Service_PsFontNameRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->get_ps_font_name = get_ps_font_name_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVPOSTNM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svpscmap.h b/uppsrc/plugin/FT_fontsys/internal/services/svpscmap.h new file mode 100644 index 000000000..961030cc3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svpscmap.h @@ -0,0 +1,164 @@ +/***************************************************************************/ +/* */ +/* svpscmap.h */ +/* */ +/* The FreeType PostScript charmap service (specification). */ +/* */ +/* Copyright 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPSCMAP_H__ +#define __SVPSCMAP_H__ + +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_POSTSCRIPT_CMAPS "postscript-cmaps" + + + /* + * Adobe glyph name to unicode value. + */ + typedef FT_UInt32 + (*PS_Unicode_ValueFunc)( const char* glyph_name ); + + /* + * Macintosh name id to glyph name. NULL if invalid index. + */ + typedef const char* + (*PS_Macintosh_NameFunc)( FT_UInt name_index ); + + /* + * Adobe standard string ID to glyph name. NULL if invalid index. + */ + typedef const char* + (*PS_Adobe_Std_StringsFunc)( FT_UInt string_index ); + + + /* + * Simple unicode -> glyph index charmap built from font glyph names + * table. + */ + typedef struct PS_UniMap_ + { + FT_UInt32 unicode; /* bit 31 set: is glyph variant */ + FT_UInt glyph_index; + + } PS_UniMap; + + + typedef struct PS_UnicodesRec_* PS_Unicodes; + + typedef struct PS_UnicodesRec_ + { + FT_CMapRec cmap; + FT_UInt num_maps; + PS_UniMap* maps; + + } PS_UnicodesRec; + + + /* + * A function which returns a glyph name for a given index. Returns + * NULL if invalid index. + */ + typedef const char* + (*PS_GetGlyphNameFunc)( FT_Pointer data, + FT_UInt string_index ); + + /* + * A function used to release the glyph name returned by + * PS_GetGlyphNameFunc, when needed + */ + typedef void + (*PS_FreeGlyphNameFunc)( FT_Pointer data, + const char* name ); + + typedef FT_Error + (*PS_Unicodes_InitFunc)( FT_Memory memory, + PS_Unicodes unicodes, + FT_UInt num_glyphs, + PS_GetGlyphNameFunc get_glyph_name, + PS_FreeGlyphNameFunc free_glyph_name, + FT_Pointer glyph_data ); + + typedef FT_UInt + (*PS_Unicodes_CharIndexFunc)( PS_Unicodes unicodes, + FT_UInt32 unicode ); + + typedef FT_UInt32 + (*PS_Unicodes_CharNextFunc)( PS_Unicodes unicodes, + FT_UInt32 *unicode ); + + + FT_DEFINE_SERVICE( PsCMaps ) + { + PS_Unicode_ValueFunc unicode_value; + + PS_Unicodes_InitFunc unicodes_init; + PS_Unicodes_CharIndexFunc unicodes_char_index; + PS_Unicodes_CharNextFunc unicodes_char_next; + + PS_Macintosh_NameFunc macintosh_name; + PS_Adobe_Std_StringsFunc adobe_std_strings; + const unsigned short* adobe_std_encoding; + const unsigned short* adobe_expert_encoding; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_PSCMAPSREC(class_, unicode_value_, unicodes_init_, \ + unicodes_char_index_, unicodes_char_next_, macintosh_name_, \ + adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_) \ + static const FT_Service_PsCMapsRec class_ = \ + { \ + unicode_value_, unicodes_init_, \ + unicodes_char_index_, unicodes_char_next_, macintosh_name_, \ + adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_PSCMAPSREC(class_, unicode_value_, unicodes_init_, \ + unicodes_char_index_, unicodes_char_next_, macintosh_name_, \ + adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_Service_PsCMapsRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->unicode_value = unicode_value_; \ + clazz->unicodes_init = unicodes_init_; \ + clazz->unicodes_char_index = unicodes_char_index_; \ + clazz->unicodes_char_next = unicodes_char_next_; \ + clazz->macintosh_name = macintosh_name_; \ + clazz->adobe_std_strings = adobe_std_strings_; \ + clazz->adobe_std_encoding = adobe_std_encoding_; \ + clazz->adobe_expert_encoding = adobe_expert_encoding_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVPSCMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svpsinfo.h b/uppsrc/plugin/FT_fontsys/internal/services/svpsinfo.h new file mode 100644 index 000000000..91ba91e5d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svpsinfo.h @@ -0,0 +1,92 @@ +/***************************************************************************/ +/* */ +/* svpsinfo.h */ +/* */ +/* The FreeType PostScript info service (specification). */ +/* */ +/* Copyright 2003, 2004, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPSINFO_H__ +#define __SVPSINFO_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_POSTSCRIPT_INFO "postscript-info" + + + typedef FT_Error + (*PS_GetFontInfoFunc)( FT_Face face, + PS_FontInfoRec* afont_info ); + + typedef FT_Error + (*PS_GetFontExtraFunc)( FT_Face face, + PS_FontExtraRec* afont_extra ); + + typedef FT_Int + (*PS_HasGlyphNamesFunc)( FT_Face face ); + + typedef FT_Error + (*PS_GetFontPrivateFunc)( FT_Face face, + PS_PrivateRec* afont_private ); + + + FT_DEFINE_SERVICE( PsInfo ) + { + PS_GetFontInfoFunc ps_get_font_info; + PS_GetFontExtraFunc ps_get_font_extra; + PS_HasGlyphNamesFunc ps_has_glyph_names; + PS_GetFontPrivateFunc ps_get_font_private; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_PSINFOREC(class_, get_font_info_, \ + ps_get_font_extra_, has_glyph_names_, get_font_private_) \ + static const FT_Service_PsInfoRec class_ = \ + { \ + get_font_info_, ps_get_font_extra_, has_glyph_names_, \ + get_font_private_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_PSINFOREC(class_, get_font_info_, \ + ps_get_font_extra_, has_glyph_names_, get_font_private_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_Service_PsInfoRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->ps_get_font_info = get_font_info_; \ + clazz->ps_get_font_extra = ps_get_font_extra_; \ + clazz->ps_has_glyph_names = has_glyph_names_; \ + clazz->ps_get_font_private = get_font_private_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVPSINFO_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svsfnt.h b/uppsrc/plugin/FT_fontsys/internal/services/svsfnt.h new file mode 100644 index 000000000..30bb1620f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svsfnt.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* svsfnt.h */ +/* */ +/* The FreeType SFNT table loading service (specification). */ +/* */ +/* Copyright 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVSFNT_H__ +#define __SVSFNT_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + + + /* + * SFNT table loading service. + */ + +#define FT_SERVICE_ID_SFNT_TABLE "sfnt-table" + + + /* + * Used to implement FT_Load_Sfnt_Table(). + */ + typedef FT_Error + (*FT_SFNT_TableLoadFunc)( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ); + + /* + * Used to implement FT_Get_Sfnt_Table(). + */ + typedef void* + (*FT_SFNT_TableGetFunc)( FT_Face face, + FT_Sfnt_Tag tag ); + + + /* + * Used to implement FT_Sfnt_Table_Info(). + */ + typedef FT_Error + (*FT_SFNT_TableInfoFunc)( FT_Face face, + FT_UInt idx, + FT_ULong *tag, + FT_ULong *offset, + FT_ULong *length ); + + + FT_DEFINE_SERVICE( SFNT_Table ) + { + FT_SFNT_TableLoadFunc load_table; + FT_SFNT_TableGetFunc get_table; + FT_SFNT_TableInfoFunc table_info; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_SFNT_TABLEREC(class_, load_, get_, info_) \ + static const FT_Service_SFNT_TableRec class_ = \ + { \ + load_, get_, info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_SFNT_TABLEREC(class_, load_, get_, info_) \ + void \ + FT_Init_Class_##class_( FT_Service_SFNT_TableRec* clazz ) \ + { \ + clazz->load_table = load_; \ + clazz->get_table = get_; \ + clazz->table_info = info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVSFNT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svttcmap.h b/uppsrc/plugin/FT_fontsys/internal/services/svttcmap.h new file mode 100644 index 000000000..8af00351d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svttcmap.h @@ -0,0 +1,106 @@ +/***************************************************************************/ +/* */ +/* svttcmap.h */ +/* */ +/* The FreeType TrueType/sfnt cmap extra information service. */ +/* */ +/* Copyright 2003 by */ +/* Masatake YAMATO, Redhat K.K. */ +/* */ +/* Copyright 2003, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/* Development of this service is support of + Information-technology Promotion Agency, Japan. */ + +#ifndef __SVTTCMAP_H__ +#define __SVTTCMAP_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_TT_CMAP "tt-cmaps" + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_CMapInfo */ + /* */ + /* <Description> */ + /* A structure used to store TrueType/sfnt specific cmap information */ + /* which is not covered by the generic @FT_CharMap structure. This */ + /* structure can be accessed with the @FT_Get_TT_CMap_Info function. */ + /* */ + /* <Fields> */ + /* language :: */ + /* The language ID used in Mac fonts. Definitions of values are in */ + /* freetype/ttnameid.h. */ + /* */ + /* format :: */ + /* The cmap format. OpenType 1.5 defines the formats 0 (byte */ + /* encoding table), 2~(high-byte mapping through table), 4~(segment */ + /* mapping to delta values), 6~(trimmed table mapping), 8~(mixed */ + /* 16-bit and 32-bit coverage), 10~(trimmed array), 12~(segmented */ + /* coverage), and 14 (Unicode Variation Sequences). */ + /* */ + typedef struct TT_CMapInfo_ + { + FT_ULong language; + FT_Long format; + + } TT_CMapInfo; + + + typedef FT_Error + (*TT_CMap_Info_GetFunc)( FT_CharMap charmap, + TT_CMapInfo *cmap_info ); + + + FT_DEFINE_SERVICE( TTCMaps ) + { + TT_CMap_Info_GetFunc get_cmap_info; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_TTCMAPSREC(class_, get_cmap_info_) \ + static const FT_Service_TTCMapsRec class_ = \ + { \ + get_cmap_info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_TTCMAPSREC(class_, get_cmap_info_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_Service_TTCMapsRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->get_cmap_info = get_cmap_info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + +#endif /* __SVTTCMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svtteng.h b/uppsrc/plugin/FT_fontsys/internal/services/svtteng.h new file mode 100644 index 000000000..58e02a6f9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svtteng.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* svtteng.h */ +/* */ +/* The FreeType TrueType engine query service (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVTTENG_H__ +#define __SVTTENG_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + /* + * SFNT table loading service. + */ + +#define FT_SERVICE_ID_TRUETYPE_ENGINE "truetype-engine" + + /* + * Used to implement FT_Get_TrueType_Engine_Type + */ + + FT_DEFINE_SERVICE( TrueTypeEngine ) + { + FT_TrueTypeEngineType engine_type; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVTTENG_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svttglyf.h b/uppsrc/plugin/FT_fontsys/internal/services/svttglyf.h new file mode 100644 index 000000000..ab2dc9a9f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svttglyf.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* svttglyf.h */ +/* */ +/* The FreeType TrueType glyph service. */ +/* */ +/* Copyright 2007 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __SVTTGLYF_H__ +#define __SVTTGLYF_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_TT_GLYF "tt-glyf" + + + typedef FT_ULong + (*TT_Glyf_GetLocationFunc)( FT_Face face, + FT_UInt gindex, + FT_ULong *psize ); + + FT_DEFINE_SERVICE( TTGlyf ) + { + TT_Glyf_GetLocationFunc get_location; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_TTGLYFREC(class_, get_location_ ) \ + static const FT_Service_TTGlyfRec class_ = \ + { \ + get_location_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_TTGLYFREC(class_, get_location_ ) \ + void \ + FT_Init_Class_##class_( FT_Service_TTGlyfRec* clazz ) \ + { \ + clazz->get_location = get_location_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + +#endif /* __SVTTGLYF_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svwinfnt.h b/uppsrc/plugin/FT_fontsys/internal/services/svwinfnt.h new file mode 100644 index 000000000..57f7765d9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svwinfnt.h @@ -0,0 +1,50 @@ +/***************************************************************************/ +/* */ +/* svwinfnt.h */ +/* */ +/* The FreeType Windows FNT/FONT service (specification). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVWINFNT_H__ +#define __SVWINFNT_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_WINFONTS_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_WINFNT "winfonts" + + typedef FT_Error + (*FT_WinFnt_GetHeaderFunc)( FT_Face face, + FT_WinFNT_HeaderRec *aheader ); + + + FT_DEFINE_SERVICE( WinFnt ) + { + FT_WinFnt_GetHeaderFunc get_header; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVWINFNT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/services/svxf86nm.h b/uppsrc/plugin/FT_fontsys/internal/services/svxf86nm.h new file mode 100644 index 000000000..ca5d884a8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/services/svxf86nm.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* svxf86nm.h */ +/* */ +/* The FreeType XFree86 services (specification only). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVXF86NM_H__ +#define __SVXF86NM_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + + /* + * A trivial service used to return the name of a face's font driver, + * according to the XFree86 nomenclature. Note that the service data + * is a simple constant string pointer. + */ + +#define FT_SERVICE_ID_XF86_NAME "xf86-driver-name" + +#define FT_XF86_FORMAT_TRUETYPE "TrueType" +#define FT_XF86_FORMAT_TYPE_1 "Type 1" +#define FT_XF86_FORMAT_BDF "BDF" +#define FT_XF86_FORMAT_PCF "PCF" +#define FT_XF86_FORMAT_TYPE_42 "Type 42" +#define FT_XF86_FORMAT_CID "CID Type 1" +#define FT_XF86_FORMAT_CFF "CFF" +#define FT_XF86_FORMAT_PFR "PFR" +#define FT_XF86_FORMAT_WINFNT "Windows FNT" + + /* */ + + +FT_END_HEADER + + +#endif /* __SVXF86NM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/sfnt.h b/uppsrc/plugin/FT_fontsys/internal/sfnt.h new file mode 100644 index 000000000..dce470e91 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/sfnt.h @@ -0,0 +1,897 @@ +/***************************************************************************/ +/* */ +/* sfnt.h */ +/* */ +/* High-level `sfnt' driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFNT_H__ +#define __SFNT_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Init_Face_Func */ + /* */ + /* <Description> */ + /* First part of the SFNT face object initialization. This finds */ + /* the face in a SFNT file or collection, and load its format tag in */ + /* face->format_tag. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* face_index :: The index of the TrueType font, if we are opening a */ + /* collection. */ + /* */ + /* num_params :: The number of additional parameters. */ + /* */ + /* params :: Optional additional parameters. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the font file's origin. */ + /* */ + /* This function recognizes fonts embedded in a `TrueType */ + /* collection'. */ + /* */ + /* Once the format tag has been validated by the font driver, it */ + /* should then call the TT_Load_Face_Func() callback to read the rest */ + /* of the SFNT tables in the object. */ + /* */ + typedef FT_Error + (*TT_Init_Face_Func)( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Face_Func */ + /* */ + /* <Description> */ + /* Second part of the SFNT face object initialization. This loads */ + /* the common SFNT tables (head, OS/2, maxp, metrics, etc.) in the */ + /* face object. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* face_index :: The index of the TrueType font, if we are opening a */ + /* collection. */ + /* */ + /* num_params :: The number of additional parameters. */ + /* */ + /* params :: Optional additional parameters. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function must be called after TT_Init_Face_Func(). */ + /* */ + typedef FT_Error + (*TT_Load_Face_Func)( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Done_Face_Func */ + /* */ + /* <Description> */ + /* A callback used to delete the common SFNT data from a face. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Note> */ + /* This function does NOT destroy the face object. */ + /* */ + typedef void + (*TT_Done_Face_Func)( TT_Face face ); + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_SFNT_HeaderRec_Func */ + /* */ + /* <Description> */ + /* Loads the header of a SFNT font file. Supports collections. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* face_index :: The index of the TrueType font, if we are opening a */ + /* collection. */ + /* */ + /* <Output> */ + /* sfnt :: The SFNT header. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the font file's origin. */ + /* */ + /* This function recognizes fonts embedded in a `TrueType */ + /* collection'. */ + /* */ + /* This function checks that the header is valid by looking at the */ + /* values of `search_range', `entry_selector', and `range_shift'. */ + /* */ + typedef FT_Error + (*TT_Load_SFNT_HeaderRec_Func)( TT_Face face, + FT_Stream stream, + FT_Long face_index, + SFNT_Header sfnt ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Directory_Func */ + /* */ + /* <Description> */ + /* Loads the table directory into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* sfnt :: The SFNT header. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be on the first byte after the 4-byte font */ + /* format tag. This is the case just after a call to */ + /* TT_Load_Format_Tag(). */ + /* */ + typedef FT_Error + (*TT_Load_Directory_Func)( TT_Face face, + FT_Stream stream, + SFNT_Header sfnt ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Any_Func */ + /* */ + /* <Description> */ + /* Load any font table into client memory. */ + /* */ + /* <Input> */ + /* face :: The face object to look for. */ + /* */ + /* tag :: The tag of table to load. Use the value 0 if you want */ + /* to access the whole font file, else set this parameter */ + /* to a valid TrueType table tag that you can forge with */ + /* the MAKE_TT_TAG macro. */ + /* */ + /* offset :: The starting offset in the table (or the file if */ + /* tag == 0). */ + /* */ + /* length :: The address of the decision variable: */ + /* */ + /* If length == NULL: */ + /* Loads the whole table. Returns an error if */ + /* `offset' == 0! */ + /* */ + /* If *length == 0: */ + /* Exits immediately; returning the length of the given */ + /* table or of the font file, depending on the value of */ + /* `tag'. */ + /* */ + /* If *length != 0: */ + /* Loads the next `length' bytes of table or font, */ + /* starting at offset `offset' (in table or font too). */ + /* */ + /* <Output> */ + /* buffer :: The address of target buffer. */ + /* */ + /* <Return> */ + /* TrueType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Load_Any_Func)( TT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte *buffer, + FT_ULong* length ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Find_SBit_Image_Func */ + /* */ + /* <Description> */ + /* Check whether an embedded bitmap (an `sbit') exists for a given */ + /* glyph, at a given strike. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* strike_index :: The current strike index. */ + /* */ + /* <Output> */ + /* arange :: The SBit range containing the glyph index. */ + /* */ + /* astrike :: The SBit strike containing the glyph index. */ + /* */ + /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns */ + /* SFNT_Err_Invalid_Argument if no sbit exists for the requested */ + /* glyph. */ + /* */ + typedef FT_Error + (*TT_Find_SBit_Image_Func)( TT_Face face, + FT_UInt glyph_index, + FT_ULong strike_index, + TT_SBit_Range *arange, + TT_SBit_Strike *astrike, + FT_ULong *aglyph_offset ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_SBit_Metrics_Func */ + /* */ + /* <Description> */ + /* Get the big metrics for a given embedded bitmap. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* range :: The SBit range containing the glyph. */ + /* */ + /* <Output> */ + /* big_metrics :: A big SBit metrics structure for the glyph. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be positioned at the glyph's offset within */ + /* the `EBDT' table before the call. */ + /* */ + /* If the image format uses variable metrics, the stream cursor is */ + /* positioned just after the metrics header in the `EBDT' table on */ + /* function exit. */ + /* */ + typedef FT_Error + (*TT_Load_SBit_Metrics_Func)( FT_Stream stream, + TT_SBit_Range range, + TT_SBit_Metrics metrics ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_SBit_Image_Func */ + /* */ + /* <Description> */ + /* Load a given glyph sbit image from the font resource. This also */ + /* returns its metrics. */ + /* */ + /* <Input> */ + /* face :: */ + /* The target face object. */ + /* */ + /* strike_index :: */ + /* The strike index. */ + /* */ + /* glyph_index :: */ + /* The current glyph index. */ + /* */ + /* load_flags :: */ + /* The current load flags. */ + /* */ + /* stream :: */ + /* The input stream. */ + /* */ + /* <Output> */ + /* amap :: */ + /* The target pixmap. */ + /* */ + /* ametrics :: */ + /* A big sbit metrics structure for the glyph image. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* glyph sbit exists for the index. */ + /* */ + /* <Note> */ + /* The `map.buffer' field is always freed before the glyph is loaded. */ + /* */ + typedef FT_Error + (*TT_Load_SBit_Image_Func)( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *amap, + TT_SBit_MetricsRec *ametrics ); + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Set_SBit_Strike_OldFunc */ + /* */ + /* <Description> */ + /* Select an sbit strike for a given size request. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* req :: The size request. */ + /* */ + /* <Output> */ + /* astrike_index :: The index of the sbit strike. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* sbit strike exists for the selected ppem values. */ + /* */ + typedef FT_Error + (*TT_Set_SBit_Strike_OldFunc)( TT_Face face, + FT_UInt x_ppem, + FT_UInt y_ppem, + FT_ULong* astrike_index ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_CharMap_Load_Func */ + /* */ + /* <Description> */ + /* Loads a given TrueType character map into memory. */ + /* */ + /* <Input> */ + /* face :: A handle to the parent face object. */ + /* */ + /* stream :: A handle to the current stream object. */ + /* */ + /* <InOut> */ + /* cmap :: A pointer to a cmap object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The function assumes that the stream is already in use (i.e., */ + /* opened). In case of error, all partially allocated tables are */ + /* released. */ + /* */ + typedef FT_Error + (*TT_CharMap_Load_Func)( TT_Face face, + void* cmap, + FT_Stream input ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_CharMap_Free_Func */ + /* */ + /* <Description> */ + /* Destroys a character mapping table. */ + /* */ + /* <Input> */ + /* face :: A handle to the parent face object. */ + /* */ + /* cmap :: A handle to a cmap object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_CharMap_Free_Func)( TT_Face face, + void* cmap ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Set_SBit_Strike_Func */ + /* */ + /* <Description> */ + /* Select an sbit strike for a given size request. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* req :: The size request. */ + /* */ + /* <Output> */ + /* astrike_index :: The index of the sbit strike. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* sbit strike exists for the selected ppem values. */ + /* */ + typedef FT_Error + (*TT_Set_SBit_Strike_Func)( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Strike_Metrics_Func */ + /* */ + /* <Description> */ + /* Load the metrics of a given strike. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* strike_index :: The strike index. */ + /* */ + /* <Output> */ + /* metrics :: the metrics of the strike. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* such sbit strike exists. */ + /* */ + typedef FT_Error + (*TT_Load_Strike_Metrics_Func)( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Get_PS_Name_Func */ + /* */ + /* <Description> */ + /* Get the PostScript glyph name of a glyph. */ + /* */ + /* <Input> */ + /* idx :: The glyph index. */ + /* */ + /* PSname :: The address of a string pointer. Will be NULL in case */ + /* of error, otherwise it is a pointer to the glyph name. */ + /* */ + /* You must not modify the returned string! */ + /* */ + /* <Output> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Get_PS_Name_Func)( TT_Face face, + FT_UInt idx, + FT_String** PSname ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Metrics_Func */ + /* */ + /* <Description> */ + /* Load a metrics table, which is a table with a horizontal and a */ + /* vertical version. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load the vertical one. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Load_Metrics_Func)( TT_Face face, + FT_Stream stream, + FT_Bool vertical ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Get_Metrics_Func */ + /* */ + /* <Description> */ + /* Load the horizontal or vertical header in a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load vertical metrics. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Get_Metrics_Func)( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short* abearing, + FT_UShort* aadvance ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Table_Func */ + /* */ + /* <Description> */ + /* Load a given TrueType table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The function uses `face->goto_table' to seek the stream to the */ + /* start of the table, except while loading the font directory. */ + /* */ + typedef FT_Error + (*TT_Load_Table_Func)( TT_Face face, + FT_Stream stream ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Free_Table_Func */ + /* */ + /* <Description> */ + /* Free a given TrueType table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + typedef void + (*TT_Free_Table_Func)( TT_Face face ); + + + /* + * @functype: + * TT_Face_GetKerningFunc + * + * @description: + * Return the horizontal kerning value between two glyphs. + * + * @input: + * face :: A handle to the source face object. + * left_glyph :: The left glyph index. + * right_glyph :: The right glyph index. + * + * @return: + * The kerning value in font units. + */ + typedef FT_Int + (*TT_Face_GetKerningFunc)( TT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SFNT_Interface */ + /* */ + /* <Description> */ + /* This structure holds pointers to the functions used to load and */ + /* free the basic tables that are required in a `sfnt' font file. */ + /* */ + /* <Fields> */ + /* Check the various xxx_Func() descriptions for details. */ + /* */ + typedef struct SFNT_Interface_ + { + TT_Loader_GotoTableFunc goto_table; + + TT_Init_Face_Func init_face; + TT_Load_Face_Func load_face; + TT_Done_Face_Func done_face; + FT_Module_Requester get_interface; + + TT_Load_Any_Func load_any; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_Load_SFNT_HeaderRec_Func load_sfnt_header; + TT_Load_Directory_Func load_directory; +#endif + + /* these functions are called by `load_face' but they can also */ + /* be called from external modules, if there is a need to do so */ + TT_Load_Table_Func load_head; + TT_Load_Metrics_Func load_hhea; + TT_Load_Table_Func load_cmap; + TT_Load_Table_Func load_maxp; + TT_Load_Table_Func load_os2; + TT_Load_Table_Func load_post; + + TT_Load_Table_Func load_name; + TT_Free_Table_Func free_name; + + /* optional tables */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_Load_Table_Func load_hdmx_stub; + TT_Free_Table_Func free_hdmx_stub; +#endif + + /* this field was called `load_kerning' up to version 2.1.10 */ + TT_Load_Table_Func load_kern; + + TT_Load_Table_Func load_gasp; + TT_Load_Table_Func load_pclt; + + /* see `ttload.h'; this field was called `load_bitmap_header' up to */ + /* version 2.1.10 */ + TT_Load_Table_Func load_bhed; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* see `ttsbit.h' */ + TT_Set_SBit_Strike_OldFunc set_sbit_strike_stub; + TT_Load_Table_Func load_sbits_stub; + + /* + * The following two fields appeared in version 2.1.8, and were placed + * between `load_sbits' and `load_sbit_image'. We support them as a + * special exception since they are used by Xfont library within the + * X.Org xserver, and because the probability that other rogue clients + * use the other version 2.1.7 fields below is _extremely_ low. + * + * Note that this forces us to disable an interesting memory-saving + * optimization though... + */ + + TT_Find_SBit_Image_Func find_sbit_image; + TT_Load_SBit_Metrics_Func load_sbit_metrics; + +#endif + + TT_Load_SBit_Image_Func load_sbit_image; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_Free_Table_Func free_sbits_stub; +#endif + + /* see `ttpost.h' */ + TT_Get_PS_Name_Func get_psname; + TT_Free_Table_Func free_psnames; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_CharMap_Load_Func load_charmap_stub; + TT_CharMap_Free_Func free_charmap_stub; +#endif + + /* starting here, the structure differs from version 2.1.7 */ + + /* this field was introduced in version 2.1.8, named `get_psname' */ + TT_Face_GetKerningFunc get_kerning; + + /* new elements introduced after version 2.1.10 */ + + /* load the font directory, i.e., the offset table and */ + /* the table directory */ + TT_Load_Table_Func load_font_dir; + TT_Load_Metrics_Func load_hmtx; + + TT_Load_Table_Func load_eblc; + TT_Free_Table_Func free_eblc; + + TT_Set_SBit_Strike_Func set_sbit_strike; + TT_Load_Strike_Metrics_Func load_strike_metrics; + + TT_Get_Metrics_Func get_metrics; + + } SFNT_Interface; + + + /* transitional */ + typedef SFNT_Interface* SFNT_Service; + +#ifndef FT_CONFIG_OPTION_PIC + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNAL(a) \ + a, +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNAL(a) +#endif +#define FT_INTERNAL(a) \ + a, + +#define FT_DEFINE_SFNT_INTERFACE(class_, \ + goto_table_, init_face_, load_face_, done_face_, get_interface_, \ + load_any_, load_sfnt_header_, load_directory_, load_head_, \ + load_hhea_, load_cmap_, load_maxp_, load_os2_, load_post_, \ + load_name_, free_name_, load_hdmx_stub_, free_hdmx_stub_, \ + load_kern_, load_gasp_, load_pclt_, load_bhed_, \ + set_sbit_strike_stub_, load_sbits_stub_, find_sbit_image_, \ + load_sbit_metrics_, load_sbit_image_, free_sbits_stub_, \ + get_psname_, free_psnames_, load_charmap_stub_, free_charmap_stub_, \ + get_kerning_, load_font_dir_, load_hmtx_, load_eblc_, free_eblc_, \ + set_sbit_strike_, load_strike_metrics_, get_metrics_ ) \ + static const SFNT_Interface class_ = \ + { \ + FT_INTERNAL(goto_table_) \ + FT_INTERNAL(init_face_) \ + FT_INTERNAL(load_face_) \ + FT_INTERNAL(done_face_) \ + FT_INTERNAL(get_interface_) \ + FT_INTERNAL(load_any_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sfnt_header_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_directory_) \ + FT_INTERNAL(load_head_) \ + FT_INTERNAL(load_hhea_) \ + FT_INTERNAL(load_cmap_) \ + FT_INTERNAL(load_maxp_) \ + FT_INTERNAL(load_os2_) \ + FT_INTERNAL(load_post_) \ + FT_INTERNAL(load_name_) \ + FT_INTERNAL(free_name_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_hdmx_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_hdmx_stub_) \ + FT_INTERNAL(load_kern_) \ + FT_INTERNAL(load_gasp_) \ + FT_INTERNAL(load_pclt_) \ + FT_INTERNAL(load_bhed_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(set_sbit_strike_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbits_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(find_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbit_metrics_) \ + FT_INTERNAL(load_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_sbits_stub_) \ + FT_INTERNAL(get_psname_) \ + FT_INTERNAL(free_psnames_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_charmap_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_charmap_stub_) \ + FT_INTERNAL(get_kerning_) \ + FT_INTERNAL(load_font_dir_) \ + FT_INTERNAL(load_hmtx_) \ + FT_INTERNAL(load_eblc_) \ + FT_INTERNAL(free_eblc_) \ + FT_INTERNAL(set_sbit_strike_) \ + FT_INTERNAL(load_strike_metrics_) \ + FT_INTERNAL(get_metrics_) \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNAL(a, a_) \ + clazz->a = a_; +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNAL(a, a_) +#endif +#define FT_INTERNAL(a, a_) \ + clazz->a = a_; + +#define FT_DEFINE_SFNT_INTERFACE(class_, \ + goto_table_, init_face_, load_face_, done_face_, get_interface_, \ + load_any_, load_sfnt_header_, load_directory_, load_head_, \ + load_hhea_, load_cmap_, load_maxp_, load_os2_, load_post_, \ + load_name_, free_name_, load_hdmx_stub_, free_hdmx_stub_, \ + load_kern_, load_gasp_, load_pclt_, load_bhed_, \ + set_sbit_strike_stub_, load_sbits_stub_, find_sbit_image_, \ + load_sbit_metrics_, load_sbit_image_, free_sbits_stub_, \ + get_psname_, free_psnames_, load_charmap_stub_, free_charmap_stub_, \ + get_kerning_, load_font_dir_, load_hmtx_, load_eblc_, free_eblc_, \ + set_sbit_strike_, load_strike_metrics_, get_metrics_ ) \ + void \ + FT_Init_Class_##class_( FT_Library library, SFNT_Interface* clazz ) \ + { \ + FT_UNUSED(library); \ + FT_INTERNAL(goto_table,goto_table_) \ + FT_INTERNAL(init_face,init_face_) \ + FT_INTERNAL(load_face,load_face_) \ + FT_INTERNAL(done_face,done_face_) \ + FT_INTERNAL(get_interface,get_interface_) \ + FT_INTERNAL(load_any,load_any_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sfnt_header,load_sfnt_header_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_directory,load_directory_) \ + FT_INTERNAL(load_head,load_head_) \ + FT_INTERNAL(load_hhea,load_hhea_) \ + FT_INTERNAL(load_cmap,load_cmap_) \ + FT_INTERNAL(load_maxp,load_maxp_) \ + FT_INTERNAL(load_os2,load_os2_) \ + FT_INTERNAL(load_post,load_post_) \ + FT_INTERNAL(load_name,load_name_) \ + FT_INTERNAL(free_name,free_name_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_hdmx_stub,load_hdmx_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_hdmx_stub,free_hdmx_stub_) \ + FT_INTERNAL(load_kern,load_kern_) \ + FT_INTERNAL(load_gasp,load_gasp_) \ + FT_INTERNAL(load_pclt,load_pclt_) \ + FT_INTERNAL(load_bhed,load_bhed_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(set_sbit_strike_stub,set_sbit_strike_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbits_stub,load_sbits_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(find_sbit_image,find_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbit_metrics,load_sbit_metrics_) \ + FT_INTERNAL(load_sbit_image,load_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_sbits_stub,free_sbits_stub_) \ + FT_INTERNAL(get_psname,get_psname_) \ + FT_INTERNAL(free_psnames,free_psnames_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_charmap_stub,load_charmap_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_charmap_stub,free_charmap_stub_) \ + FT_INTERNAL(get_kerning,get_kerning_) \ + FT_INTERNAL(load_font_dir,load_font_dir_) \ + FT_INTERNAL(load_hmtx,load_hmtx_) \ + FT_INTERNAL(load_eblc,load_eblc_) \ + FT_INTERNAL(free_eblc,free_eblc_) \ + FT_INTERNAL(set_sbit_strike,set_sbit_strike_) \ + FT_INTERNAL(load_strike_metrics,load_strike_metrics_) \ + FT_INTERNAL(get_metrics,get_metrics_) \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __SFNT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/t1types.h b/uppsrc/plugin/FT_fontsys/internal/t1types.h new file mode 100644 index 000000000..f2ed499a6 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/t1types.h @@ -0,0 +1,270 @@ +/***************************************************************************/ +/* */ +/* t1types.h */ +/* */ +/* Basic Type1/Type2 type definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1TYPES_H__ +#define __T1TYPES_H__ + + +#include <freetype/ft2build.h> +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** REQUIRED TYPE1/TYPE2 TABLES DEFINITIONS ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_EncodingRec */ + /* */ + /* <Description> */ + /* A structure modeling a custom encoding. */ + /* */ + /* <Fields> */ + /* num_chars :: The number of character codes in the encoding. */ + /* Usually 256. */ + /* */ + /* code_first :: The lowest valid character code in the encoding. */ + /* */ + /* code_last :: The highest valid character code in the encoding */ + /* + 1. When equal to code_first there are no valid */ + /* character codes. */ + /* */ + /* char_index :: An array of corresponding glyph indices. */ + /* */ + /* char_name :: An array of corresponding glyph names. */ + /* */ + typedef struct T1_EncodingRecRec_ + { + FT_Int num_chars; + FT_Int code_first; + FT_Int code_last; + + FT_UShort* char_index; + FT_String** char_name; + + } T1_EncodingRec, *T1_Encoding; + + + typedef enum T1_EncodingType_ + { + T1_ENCODING_TYPE_NONE = 0, + T1_ENCODING_TYPE_ARRAY, + T1_ENCODING_TYPE_STANDARD, + T1_ENCODING_TYPE_ISOLATIN1, + T1_ENCODING_TYPE_EXPERT + + } T1_EncodingType; + + + /* used to hold extra data of PS_FontInfoRec that + * cannot be stored in the publicly defined structure. + * + * Note these can't be blended with multiple-masters. + */ + typedef struct PS_FontExtraRec_ + { + FT_UShort fs_type; + + } PS_FontExtraRec; + + + typedef struct T1_FontRec_ + { + PS_FontInfoRec font_info; /* font info dictionary */ + PS_FontExtraRec font_extra; /* font info extra fields */ + PS_PrivateRec private_dict; /* private dictionary */ + FT_String* font_name; /* top-level dictionary */ + + T1_EncodingType encoding_type; + T1_EncodingRec encoding; + + FT_Byte* subrs_block; + FT_Byte* charstrings_block; + FT_Byte* glyph_names_block; + + FT_Int num_subrs; + FT_Byte** subrs; + FT_PtrDist* subrs_len; + + FT_Int num_glyphs; + FT_String** glyph_names; /* array of glyph names */ + FT_Byte** charstrings; /* array of glyph charstrings */ + FT_PtrDist* charstrings_len; + + FT_Byte paint_type; + FT_Byte font_type; + FT_Matrix font_matrix; + FT_Vector font_offset; + FT_BBox font_bbox; + FT_Long font_id; + + FT_Fixed stroke_width; + + } T1_FontRec, *T1_Font; + + + typedef struct CID_SubrsRec_ + { + FT_UInt num_subrs; + FT_Byte** code; + + } CID_SubrsRec, *CID_Subrs; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** AFM FONT INFORMATION STRUCTURES ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct AFM_TrackKernRec_ + { + FT_Int degree; + FT_Fixed min_ptsize; + FT_Fixed min_kern; + FT_Fixed max_ptsize; + FT_Fixed max_kern; + + } AFM_TrackKernRec, *AFM_TrackKern; + + typedef struct AFM_KernPairRec_ + { + FT_Int index1; + FT_Int index2; + FT_Int x; + FT_Int y; + + } AFM_KernPairRec, *AFM_KernPair; + + typedef struct AFM_FontInfoRec_ + { + FT_Bool IsCIDFont; + FT_BBox FontBBox; + FT_Fixed Ascender; + FT_Fixed Descender; + AFM_TrackKern TrackKerns; /* free if non-NULL */ + FT_Int NumTrackKern; + AFM_KernPair KernPairs; /* free if non-NULL */ + FT_Int NumKernPair; + + } AFM_FontInfoRec, *AFM_FontInfo; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** ORIGINAL T1_FACE CLASS DEFINITION ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct T1_FaceRec_* T1_Face; + typedef struct CID_FaceRec_* CID_Face; + + + typedef struct T1_FaceRec_ + { + FT_FaceRec root; + T1_FontRec type1; + const void* psnames; + const void* psaux; + const void* afm_data; + FT_CharMapRec charmaprecs[2]; + FT_CharMap charmaps[2]; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + PS_Unicodes unicode_map; +#endif + + /* support for Multiple Masters fonts */ + PS_Blend blend; + + /* undocumented, optional: indices of subroutines that express */ + /* the NormalizeDesignVector and the ConvertDesignVector procedure, */ + /* respectively, as Type 2 charstrings; -1 if keywords not present */ + FT_Int ndv_idx; + FT_Int cdv_idx; + + /* undocumented, optional: has the same meaning as len_buildchar */ + /* for Type 2 fonts; manipulated by othersubrs 19, 24, and 25 */ + FT_UInt len_buildchar; + FT_Long* buildchar; + + /* since version 2.1 - interface to PostScript hinter */ + const void* pshinter; + + } T1_FaceRec; + + + typedef struct CID_FaceRec_ + { + FT_FaceRec root; + void* psnames; + void* psaux; + CID_FaceInfoRec cid; + PS_FontExtraRec font_extra; +#if 0 + void* afm_data; +#endif + CID_Subrs subrs; + + /* since version 2.1 - interface to PostScript hinter */ + void* pshinter; + + /* since version 2.1.8, but was originally positioned after `afm_data' */ + FT_Byte* binary_data; /* used if hex data has been converted */ + FT_Stream cid_stream; + + } CID_FaceRec; + + +FT_END_HEADER + +#endif /* __T1TYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/internal/tttypes.h b/uppsrc/plugin/FT_fontsys/internal/tttypes.h new file mode 100644 index 000000000..60442b9d9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/internal/tttypes.h @@ -0,0 +1,1543 @@ +/***************************************************************************/ +/* */ +/* tttypes.h */ +/* */ +/* Basic SFNT/TrueType type definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTTYPES_H__ +#define __TTTYPES_H__ + + +#include <freetype/ft2build.h> +#include FT_TRUETYPE_TABLES_H +#include FT_INTERNAL_OBJECTS_H + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include FT_MULTIPLE_MASTERS_H +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** REQUIRED TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TTC_HeaderRec */ + /* */ + /* <Description> */ + /* TrueType collection header. This table contains the offsets of */ + /* the font headers of each distinct TrueType face in the file. */ + /* */ + /* <Fields> */ + /* tag :: Must be `ttc ' to indicate a TrueType collection. */ + /* */ + /* version :: The version number. */ + /* */ + /* count :: The number of faces in the collection. The */ + /* specification says this should be an unsigned long, but */ + /* we use a signed long since we need the value -1 for */ + /* specific purposes. */ + /* */ + /* offsets :: The offsets of the font headers, one per face. */ + /* */ + typedef struct TTC_HeaderRec_ + { + FT_ULong tag; + FT_Fixed version; + FT_Long count; + FT_ULong* offsets; + + } TTC_HeaderRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SFNT_HeaderRec */ + /* */ + /* <Description> */ + /* SFNT file format header. */ + /* */ + /* <Fields> */ + /* format_tag :: The font format tag. */ + /* */ + /* num_tables :: The number of tables in file. */ + /* */ + /* search_range :: Must be `16 * (max power of 2 <= num_tables)'. */ + /* */ + /* entry_selector :: Must be log2 of `search_range / 16'. */ + /* */ + /* range_shift :: Must be `num_tables * 16 - search_range'. */ + /* */ + typedef struct SFNT_HeaderRec_ + { + FT_ULong format_tag; + FT_UShort num_tables; + FT_UShort search_range; + FT_UShort entry_selector; + FT_UShort range_shift; + + FT_ULong offset; /* not in file */ + + } SFNT_HeaderRec, *SFNT_Header; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_TableRec */ + /* */ + /* <Description> */ + /* This structure describes a given table of a TrueType font. */ + /* */ + /* <Fields> */ + /* Tag :: A four-bytes tag describing the table. */ + /* */ + /* CheckSum :: The table checksum. This value can be ignored. */ + /* */ + /* Offset :: The offset of the table from the start of the TrueType */ + /* font in its resource. */ + /* */ + /* Length :: The table length (in bytes). */ + /* */ + typedef struct TT_TableRec_ + { + FT_ULong Tag; /* table type */ + FT_ULong CheckSum; /* table checksum */ + FT_ULong Offset; /* table file offset */ + FT_ULong Length; /* table length */ + + } TT_TableRec, *TT_Table; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_LongMetricsRec */ + /* */ + /* <Description> */ + /* A structure modeling the long metrics of the `hmtx' and `vmtx' */ + /* TrueType tables. The values are expressed in font units. */ + /* */ + /* <Fields> */ + /* advance :: The advance width or height for the glyph. */ + /* */ + /* bearing :: The left-side or top-side bearing for the glyph. */ + /* */ + typedef struct TT_LongMetricsRec_ + { + FT_UShort advance; + FT_Short bearing; + + } TT_LongMetricsRec, *TT_LongMetrics; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_ShortMetrics */ + /* */ + /* <Description> */ + /* A simple type to model the short metrics of the `hmtx' and `vmtx' */ + /* tables. */ + /* */ + typedef FT_Short TT_ShortMetrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_NameEntryRec */ + /* */ + /* <Description> */ + /* A structure modeling TrueType name records. Name records are used */ + /* to store important strings like family name, style name, */ + /* copyright, etc. in _localized_ versions (i.e., language, encoding, */ + /* etc). */ + /* */ + /* <Fields> */ + /* platformID :: The ID of the name's encoding platform. */ + /* */ + /* encodingID :: The platform-specific ID for the name's encoding. */ + /* */ + /* languageID :: The platform-specific ID for the name's language. */ + /* */ + /* nameID :: The ID specifying what kind of name this is. */ + /* */ + /* stringLength :: The length of the string in bytes. */ + /* */ + /* stringOffset :: The offset to the string in the `name' table. */ + /* */ + /* string :: A pointer to the string's bytes. Note that these */ + /* are usually UTF-16 encoded characters. */ + /* */ + typedef struct TT_NameEntryRec_ + { + FT_UShort platformID; + FT_UShort encodingID; + FT_UShort languageID; + FT_UShort nameID; + FT_UShort stringLength; + FT_ULong stringOffset; + + /* this last field is not defined in the spec */ + /* but used by the FreeType engine */ + + FT_Byte* string; + + } TT_NameEntryRec, *TT_NameEntry; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_NameTableRec */ + /* */ + /* <Description> */ + /* A structure modeling the TrueType name table. */ + /* */ + /* <Fields> */ + /* format :: The format of the name table. */ + /* */ + /* numNameRecords :: The number of names in table. */ + /* */ + /* storageOffset :: The offset of the name table in the `name' */ + /* TrueType table. */ + /* */ + /* names :: An array of name records. */ + /* */ + /* stream :: the file's input stream. */ + /* */ + typedef struct TT_NameTableRec_ + { + FT_UShort format; + FT_UInt numNameRecords; + FT_UInt storageOffset; + TT_NameEntryRec* names; + FT_Stream stream; + + } TT_NameTableRec, *TT_NameTable; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** OPTIONAL TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GaspRangeRec */ + /* */ + /* <Description> */ + /* A tiny structure used to model a gasp range according to the */ + /* TrueType specification. */ + /* */ + /* <Fields> */ + /* maxPPEM :: The maximum ppem value to which `gaspFlag' applies. */ + /* */ + /* gaspFlag :: A flag describing the grid-fitting and anti-aliasing */ + /* modes to be used. */ + /* */ + typedef struct TT_GaspRangeRec_ + { + FT_UShort maxPPEM; + FT_UShort gaspFlag; + + } TT_GaspRangeRec, *TT_GaspRange; + + +#define TT_GASP_GRIDFIT 0x01 +#define TT_GASP_DOGRAY 0x02 + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GaspRec */ + /* */ + /* <Description> */ + /* A structure modeling the TrueType `gasp' table used to specify */ + /* grid-fitting and anti-aliasing behaviour. */ + /* */ + /* <Fields> */ + /* version :: The version number. */ + /* */ + /* numRanges :: The number of gasp ranges in table. */ + /* */ + /* gaspRanges :: An array of gasp ranges. */ + /* */ + typedef struct TT_Gasp_ + { + FT_UShort version; + FT_UShort numRanges; + TT_GaspRange gaspRanges; + + } TT_GaspRec; + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_HdmxEntryRec */ + /* */ + /* <Description> */ + /* A small structure used to model the pre-computed widths of a given */ + /* size. They are found in the `hdmx' table. */ + /* */ + /* <Fields> */ + /* ppem :: The pixels per EM value at which these metrics apply. */ + /* */ + /* max_width :: The maximum advance width for this metric. */ + /* */ + /* widths :: An array of widths. Note: These are 8-bit bytes. */ + /* */ + typedef struct TT_HdmxEntryRec_ + { + FT_Byte ppem; + FT_Byte max_width; + FT_Byte* widths; + + } TT_HdmxEntryRec, *TT_HdmxEntry; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_HdmxRec */ + /* */ + /* <Description> */ + /* A structure used to model the `hdmx' table, which contains */ + /* pre-computed widths for a set of given sizes/dimensions. */ + /* */ + /* <Fields> */ + /* version :: The version number. */ + /* */ + /* num_records :: The number of hdmx records. */ + /* */ + /* records :: An array of hdmx records. */ + /* */ + typedef struct TT_HdmxRec_ + { + FT_UShort version; + FT_Short num_records; + TT_HdmxEntry records; + + } TT_HdmxRec, *TT_Hdmx; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Kern0_PairRec */ + /* */ + /* <Description> */ + /* A structure used to model a kerning pair for the kerning table */ + /* format 0. The engine now loads this table if it finds one in the */ + /* font file. */ + /* */ + /* <Fields> */ + /* left :: The index of the left glyph in pair. */ + /* */ + /* right :: The index of the right glyph in pair. */ + /* */ + /* value :: The kerning distance. A positive value spaces the */ + /* glyphs, a negative one makes them closer. */ + /* */ + typedef struct TT_Kern0_PairRec_ + { + FT_UShort left; /* index of left glyph in pair */ + FT_UShort right; /* index of right glyph in pair */ + FT_FWord value; /* kerning value */ + + } TT_Kern0_PairRec, *TT_Kern0_Pair; + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** EMBEDDED BITMAPS SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_MetricsRec */ + /* */ + /* <Description> */ + /* A structure used to hold the big metrics of a given glyph bitmap */ + /* in a TrueType or OpenType font. These are usually found in the */ + /* `EBDT' (Microsoft) or `bloc' (Apple) table. */ + /* */ + /* <Fields> */ + /* height :: The glyph height in pixels. */ + /* */ + /* width :: The glyph width in pixels. */ + /* */ + /* horiBearingX :: The horizontal left bearing. */ + /* */ + /* horiBearingY :: The horizontal top bearing. */ + /* */ + /* horiAdvance :: The horizontal advance. */ + /* */ + /* vertBearingX :: The vertical left bearing. */ + /* */ + /* vertBearingY :: The vertical top bearing. */ + /* */ + /* vertAdvance :: The vertical advance. */ + /* */ + typedef struct TT_SBit_MetricsRec_ + { + FT_Byte height; + FT_Byte width; + + FT_Char horiBearingX; + FT_Char horiBearingY; + FT_Byte horiAdvance; + + FT_Char vertBearingX; + FT_Char vertBearingY; + FT_Byte vertAdvance; + + } TT_SBit_MetricsRec, *TT_SBit_Metrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_SmallMetricsRec */ + /* */ + /* <Description> */ + /* A structure used to hold the small metrics of a given glyph bitmap */ + /* in a TrueType or OpenType font. These are usually found in the */ + /* `EBDT' (Microsoft) or the `bdat' (Apple) table. */ + /* */ + /* <Fields> */ + /* height :: The glyph height in pixels. */ + /* */ + /* width :: The glyph width in pixels. */ + /* */ + /* bearingX :: The left-side bearing. */ + /* */ + /* bearingY :: The top-side bearing. */ + /* */ + /* advance :: The advance width or height. */ + /* */ + typedef struct TT_SBit_Small_Metrics_ + { + FT_Byte height; + FT_Byte width; + + FT_Char bearingX; + FT_Char bearingY; + FT_Byte advance; + + } TT_SBit_SmallMetricsRec, *TT_SBit_SmallMetrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_LineMetricsRec */ + /* */ + /* <Description> */ + /* A structure used to describe the text line metrics of a given */ + /* bitmap strike, for either a horizontal or vertical layout. */ + /* */ + /* <Fields> */ + /* ascender :: The ascender in pixels. */ + /* */ + /* descender :: The descender in pixels. */ + /* */ + /* max_width :: The maximum glyph width in pixels. */ + /* */ + /* caret_slope_enumerator :: Rise of the caret slope, typically set */ + /* to 1 for non-italic fonts. */ + /* */ + /* caret_slope_denominator :: Rise of the caret slope, typically set */ + /* to 0 for non-italic fonts. */ + /* */ + /* caret_offset :: Offset in pixels to move the caret for */ + /* proper positioning. */ + /* */ + /* min_origin_SB :: Minimum of horiBearingX (resp. */ + /* vertBearingY). */ + /* min_advance_SB :: Minimum of */ + /* */ + /* horizontal advance - */ + /* ( horiBearingX + width ) */ + /* */ + /* resp. */ + /* */ + /* vertical advance - */ + /* ( vertBearingY + height ) */ + /* */ + /* max_before_BL :: Maximum of horiBearingY (resp. */ + /* vertBearingY). */ + /* */ + /* min_after_BL :: Minimum of */ + /* */ + /* horiBearingY - height */ + /* */ + /* resp. */ + /* */ + /* vertBearingX - width */ + /* */ + /* pads :: Unused (to make the size of the record */ + /* a multiple of 32 bits. */ + /* */ + typedef struct TT_SBit_LineMetricsRec_ + { + FT_Char ascender; + FT_Char descender; + FT_Byte max_width; + FT_Char caret_slope_numerator; + FT_Char caret_slope_denominator; + FT_Char caret_offset; + FT_Char min_origin_SB; + FT_Char min_advance_SB; + FT_Char max_before_BL; + FT_Char min_after_BL; + FT_Char pads[2]; + + } TT_SBit_LineMetricsRec, *TT_SBit_LineMetrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_RangeRec */ + /* */ + /* <Description> */ + /* A TrueType/OpenType subIndexTable as defined in the `EBLC' */ + /* (Microsoft) or `bloc' (Apple) tables. */ + /* */ + /* <Fields> */ + /* first_glyph :: The first glyph index in the range. */ + /* */ + /* last_glyph :: The last glyph index in the range. */ + /* */ + /* index_format :: The format of index table. Valid values are 1 */ + /* to 5. */ + /* */ + /* image_format :: The format of `EBDT' image data. */ + /* */ + /* image_offset :: The offset to image data in `EBDT'. */ + /* */ + /* image_size :: For index formats 2 and 5. This is the size in */ + /* bytes of each glyph bitmap. */ + /* */ + /* big_metrics :: For index formats 2 and 5. This is the big */ + /* metrics for each glyph bitmap. */ + /* */ + /* num_glyphs :: For index formats 4 and 5. This is the number of */ + /* glyphs in the code array. */ + /* */ + /* glyph_offsets :: For index formats 1 and 3. */ + /* */ + /* glyph_codes :: For index formats 4 and 5. */ + /* */ + /* table_offset :: The offset of the index table in the `EBLC' */ + /* table. Only used during strike loading. */ + /* */ + typedef struct TT_SBit_RangeRec_ + { + FT_UShort first_glyph; + FT_UShort last_glyph; + + FT_UShort index_format; + FT_UShort image_format; + FT_ULong image_offset; + + FT_ULong image_size; + TT_SBit_MetricsRec metrics; + FT_ULong num_glyphs; + + FT_ULong* glyph_offsets; + FT_UShort* glyph_codes; + + FT_ULong table_offset; + + } TT_SBit_RangeRec, *TT_SBit_Range; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_StrikeRec */ + /* */ + /* <Description> */ + /* A structure used describe a given bitmap strike in the `EBLC' */ + /* (Microsoft) or `bloc' (Apple) tables. */ + /* */ + /* <Fields> */ + /* num_index_ranges :: The number of index ranges. */ + /* */ + /* index_ranges :: An array of glyph index ranges. */ + /* */ + /* color_ref :: Unused. `color_ref' is put in for future */ + /* enhancements, but these fields are already */ + /* in use by other platforms (e.g. Newton). */ + /* For details, please see */ + /* */ + /* http://fonts.apple.com/ */ + /* TTRefMan/RM06/Chap6bloc.html */ + /* */ + /* hori :: The line metrics for horizontal layouts. */ + /* */ + /* vert :: The line metrics for vertical layouts. */ + /* */ + /* start_glyph :: The lowest glyph index for this strike. */ + /* */ + /* end_glyph :: The highest glyph index for this strike. */ + /* */ + /* x_ppem :: The number of horizontal pixels per EM. */ + /* */ + /* y_ppem :: The number of vertical pixels per EM. */ + /* */ + /* bit_depth :: The bit depth. Valid values are 1, 2, 4, */ + /* and 8. */ + /* */ + /* flags :: Is this a vertical or horizontal strike? For */ + /* details, please see */ + /* */ + /* http://fonts.apple.com/ */ + /* TTRefMan/RM06/Chap6bloc.html */ + /* */ + typedef struct TT_SBit_StrikeRec_ + { + FT_Int num_ranges; + TT_SBit_Range sbit_ranges; + FT_ULong ranges_offset; + + FT_ULong color_ref; + + TT_SBit_LineMetricsRec hori; + TT_SBit_LineMetricsRec vert; + + FT_UShort start_glyph; + FT_UShort end_glyph; + + FT_Byte x_ppem; + FT_Byte y_ppem; + + FT_Byte bit_depth; + FT_Char flags; + + } TT_SBit_StrikeRec, *TT_SBit_Strike; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_ComponentRec */ + /* */ + /* <Description> */ + /* A simple structure to describe a compound sbit element. */ + /* */ + /* <Fields> */ + /* glyph_code :: The element's glyph index. */ + /* */ + /* x_offset :: The element's left bearing. */ + /* */ + /* y_offset :: The element's top bearing. */ + /* */ + typedef struct TT_SBit_ComponentRec_ + { + FT_UShort glyph_code; + FT_Char x_offset; + FT_Char y_offset; + + } TT_SBit_ComponentRec, *TT_SBit_Component; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_ScaleRec */ + /* */ + /* <Description> */ + /* A structure used describe a given bitmap scaling table, as defined */ + /* in the `EBSC' table. */ + /* */ + /* <Fields> */ + /* hori :: The horizontal line metrics. */ + /* */ + /* vert :: The vertical line metrics. */ + /* */ + /* x_ppem :: The number of horizontal pixels per EM. */ + /* */ + /* y_ppem :: The number of vertical pixels per EM. */ + /* */ + /* x_ppem_substitute :: Substitution x_ppem value. */ + /* */ + /* y_ppem_substitute :: Substitution y_ppem value. */ + /* */ + typedef struct TT_SBit_ScaleRec_ + { + TT_SBit_LineMetricsRec hori; + TT_SBit_LineMetricsRec vert; + + FT_Byte x_ppem; + FT_Byte y_ppem; + + FT_Byte x_ppem_substitute; + FT_Byte y_ppem_substitute; + + } TT_SBit_ScaleRec, *TT_SBit_Scale; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** POSTSCRIPT GLYPH NAMES SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Post_20Rec */ + /* */ + /* <Description> */ + /* Postscript names sub-table, format 2.0. Stores the PS name of */ + /* each glyph in the font face. */ + /* */ + /* <Fields> */ + /* num_glyphs :: The number of named glyphs in the table. */ + /* */ + /* num_names :: The number of PS names stored in the table. */ + /* */ + /* glyph_indices :: The indices of the glyphs in the names arrays. */ + /* */ + /* glyph_names :: The PS names not in Mac Encoding. */ + /* */ + typedef struct TT_Post_20Rec_ + { + FT_UShort num_glyphs; + FT_UShort num_names; + FT_UShort* glyph_indices; + FT_Char** glyph_names; + + } TT_Post_20Rec, *TT_Post_20; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Post_25Rec */ + /* */ + /* <Description> */ + /* Postscript names sub-table, format 2.5. Stores the PS name of */ + /* each glyph in the font face. */ + /* */ + /* <Fields> */ + /* num_glyphs :: The number of glyphs in the table. */ + /* */ + /* offsets :: An array of signed offsets in a normal Mac */ + /* Postscript name encoding. */ + /* */ + typedef struct TT_Post_25_ + { + FT_UShort num_glyphs; + FT_Char* offsets; + + } TT_Post_25Rec, *TT_Post_25; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Post_NamesRec */ + /* */ + /* <Description> */ + /* Postscript names table, either format 2.0 or 2.5. */ + /* */ + /* <Fields> */ + /* loaded :: A flag to indicate whether the PS names are loaded. */ + /* */ + /* format_20 :: The sub-table used for format 2.0. */ + /* */ + /* format_25 :: The sub-table used for format 2.5. */ + /* */ + typedef struct TT_Post_NamesRec_ + { + FT_Bool loaded; + + union + { + TT_Post_20Rec format_20; + TT_Post_25Rec format_25; + + } names; + + } TT_Post_NamesRec, *TT_Post_Names; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** GX VARIATION TABLE SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + typedef struct GX_BlendRec_ *GX_Blend; +#endif + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** EMBEDDED BDF PROPERTIES TABLE SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * These types are used to support a `BDF ' table that isn't part of the + * official TrueType specification. It is mainly used in SFNT-based + * bitmap fonts that were generated from a set of BDF fonts. + * + * The format of the table is as follows. + * + * USHORT version `BDF ' table version number, should be 0x0001. + * USHORT strikeCount Number of strikes (bitmap sizes) in this table. + * ULONG stringTable Offset (from start of BDF table) to string + * table. + * + * This is followed by an array of `strikeCount' descriptors, having the + * following format. + * + * USHORT ppem Vertical pixels per EM for this strike. + * USHORT numItems Number of items for this strike (properties and + * atoms). Maximum is 255. + * + * This array in turn is followed by `strikeCount' value sets. Each + * `value set' is an array of `numItems' items with the following format. + * + * ULONG item_name Offset in string table to item name. + * USHORT item_type The item type. Possible values are + * 0 => string (e.g., COMMENT) + * 1 => atom (e.g., FONT or even SIZE) + * 2 => int32 + * 3 => uint32 + * 0x10 => A flag to indicate a properties. This + * is ORed with the above values. + * ULONG item_value For strings => Offset into string table without + * the corresponding double quotes. + * For atoms => Offset into string table. + * For integers => Direct value. + * + * All strings in the string table consist of bytes and are + * zero-terminated. + * + */ + +#ifdef TT_CONFIG_OPTION_BDF + + typedef struct TT_BDFRec_ + { + FT_Byte* table; + FT_Byte* table_end; + FT_Byte* strings; + FT_ULong strings_size; + FT_UInt num_strikes; + FT_Bool loaded; + + } TT_BDFRec, *TT_BDF; + +#endif /* TT_CONFIG_OPTION_BDF */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** ORIGINAL TT_FACE CLASS DEFINITION ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This structure/class is defined here because it is common to the */ + /* following formats: TTF, OpenType-TT, and OpenType-CFF. */ + /* */ + /* Note, however, that the classes TT_Size and TT_GlyphSlot are not */ + /* shared between font drivers, and are thus defined in `ttobjs.h'. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_Face */ + /* */ + /* <Description> */ + /* A handle to a TrueType face/font object. A TT_Face encapsulates */ + /* the resolution and scaling independent parts of a TrueType font */ + /* resource. */ + /* */ + /* <Note> */ + /* The TT_Face structure is also used as a `parent class' for the */ + /* OpenType-CFF class (T2_Face). */ + /* */ + typedef struct TT_FaceRec_* TT_Face; + + + /* a function type used for the truetype bytecode interpreter hooks */ + typedef FT_Error + (*TT_Interpreter)( void* exec_context ); + + /* forward declaration */ + typedef struct TT_LoaderRec_* TT_Loader; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_GotoTableFunc */ + /* */ + /* <Description> */ + /* Seeks a stream to the start of a given TrueType table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* tag :: A 4-byte tag used to name the table. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Output> */ + /* length :: The length of the table in bytes. Set to 0 if not */ + /* needed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the font file's origin. */ + /* */ + typedef FT_Error + (*TT_Loader_GotoTableFunc)( TT_Face face, + FT_ULong tag, + FT_Stream stream, + FT_ULong* length ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_StartGlyphFunc */ + /* */ + /* <Description> */ + /* Seeks a stream to the start of a given glyph element, and opens a */ + /* frame for it. */ + /* */ + /* <Input> */ + /* loader :: The current TrueType glyph loader object. */ + /* */ + /* glyph index :: The index of the glyph to access. */ + /* */ + /* offset :: The offset of the glyph according to the */ + /* `locations' table. */ + /* */ + /* byte_count :: The size of the frame in bytes. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function is normally equivalent to FT_STREAM_SEEK(offset) */ + /* followed by FT_FRAME_ENTER(byte_count) with the loader's stream, */ + /* but alternative formats (e.g. compressed ones) might use something */ + /* different. */ + /* */ + typedef FT_Error + (*TT_Loader_StartGlyphFunc)( TT_Loader loader, + FT_UInt glyph_index, + FT_ULong offset, + FT_UInt byte_count ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_ReadGlyphFunc */ + /* */ + /* <Description> */ + /* Reads one glyph element (its header, a simple glyph, or a */ + /* composite) from the loader's current stream frame. */ + /* */ + /* <Input> */ + /* loader :: The current TrueType glyph loader object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Loader_ReadGlyphFunc)( TT_Loader loader ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_EndGlyphFunc */ + /* */ + /* <Description> */ + /* Closes the current loader stream frame for the glyph. */ + /* */ + /* <Input> */ + /* loader :: The current TrueType glyph loader object. */ + /* */ + typedef void + (*TT_Loader_EndGlyphFunc)( TT_Loader loader ); + + + /*************************************************************************/ + /* */ + /* TrueType Face Type */ + /* */ + /* <Struct> */ + /* TT_Face */ + /* */ + /* <Description> */ + /* The TrueType face class. These objects model the resolution and */ + /* point-size independent data found in a TrueType font file. */ + /* */ + /* <Fields> */ + /* root :: The base FT_Face structure, managed by the */ + /* base layer. */ + /* */ + /* ttc_header :: The TrueType collection header, used when */ + /* the file is a `ttc' rather than a `ttf'. */ + /* For ordinary font files, the field */ + /* `ttc_header.count' is set to 0. */ + /* */ + /* format_tag :: The font format tag. */ + /* */ + /* num_tables :: The number of TrueType tables in this font */ + /* file. */ + /* */ + /* dir_tables :: The directory of TrueType tables for this */ + /* font file. */ + /* */ + /* header :: The font's font header (`head' table). */ + /* Read on font opening. */ + /* */ + /* horizontal :: The font's horizontal header (`hhea' */ + /* table). This field also contains the */ + /* associated horizontal metrics table */ + /* (`hmtx'). */ + /* */ + /* max_profile :: The font's maximum profile table. Read on */ + /* font opening. Note that some maximum */ + /* values cannot be taken directly from this */ + /* table. We thus define additional fields */ + /* below to hold the computed maxima. */ + /* */ + /* vertical_info :: A boolean which is set when the font file */ + /* contains vertical metrics. If not, the */ + /* value of the `vertical' field is */ + /* undefined. */ + /* */ + /* vertical :: The font's vertical header (`vhea' table). */ + /* This field also contains the associated */ + /* vertical metrics table (`vmtx'), if found. */ + /* IMPORTANT: The contents of this field is */ + /* undefined if the `verticalInfo' field is */ + /* unset. */ + /* */ + /* num_names :: The number of name records within this */ + /* TrueType font. */ + /* */ + /* name_table :: The table of name records (`name'). */ + /* */ + /* os2 :: The font's OS/2 table (`OS/2'). */ + /* */ + /* postscript :: The font's PostScript table (`post' */ + /* table). The PostScript glyph names are */ + /* not loaded by the driver on face opening. */ + /* See the `ttpost' module for more details. */ + /* */ + /* cmap_table :: Address of the face's `cmap' SFNT table */ + /* in memory (it's an extracted frame). */ + /* */ + /* cmap_size :: The size in bytes of the `cmap_table' */ + /* described above. */ + /* */ + /* goto_table :: A function called by each TrueType table */ + /* loader to position a stream's cursor to */ + /* the start of a given table according to */ + /* its tag. It defaults to TT_Goto_Face but */ + /* can be different for strange formats (e.g. */ + /* Type 42). */ + /* */ + /* access_glyph_frame :: A function used to access the frame of a */ + /* given glyph within the face's font file. */ + /* */ + /* forget_glyph_frame :: A function used to forget the frame of a */ + /* given glyph when all data has been loaded. */ + /* */ + /* read_glyph_header :: A function used to read a glyph header. */ + /* It must be called between an `access' and */ + /* `forget'. */ + /* */ + /* read_simple_glyph :: A function used to read a simple glyph. */ + /* It must be called after the header was */ + /* read, and before the `forget'. */ + /* */ + /* read_composite_glyph :: A function used to read a composite glyph. */ + /* It must be called after the header was */ + /* read, and before the `forget'. */ + /* */ + /* sfnt :: A pointer to the SFNT service. */ + /* */ + /* psnames :: A pointer to the PostScript names service. */ + /* */ + /* hdmx :: The face's horizontal device metrics */ + /* (`hdmx' table). This table is optional in */ + /* TrueType/OpenType fonts. */ + /* */ + /* gasp :: The grid-fitting and scaling properties */ + /* table (`gasp'). This table is optional in */ + /* TrueType/OpenType fonts. */ + /* */ + /* pclt :: The `pclt' SFNT table. */ + /* */ + /* num_sbit_strikes :: The number of sbit strikes, i.e., bitmap */ + /* sizes, embedded in this font. */ + /* */ + /* sbit_strikes :: An array of sbit strikes embedded in this */ + /* font. This table is optional in a */ + /* TrueType/OpenType font. */ + /* */ + /* num_sbit_scales :: The number of sbit scales for this font. */ + /* */ + /* sbit_scales :: Array of sbit scales embedded in this */ + /* font. This table is optional in a */ + /* TrueType/OpenType font. */ + /* */ + /* postscript_names :: A table used to store the Postscript names */ + /* of the glyphs for this font. See the */ + /* file `ttconfig.h' for comments on the */ + /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES option. */ + /* */ + /* num_locations :: The number of glyph locations in this */ + /* TrueType file. This should be */ + /* identical to the number of glyphs. */ + /* Ignored for Type 2 fonts. */ + /* */ + /* glyph_locations :: An array of longs. These are offsets to */ + /* glyph data within the `glyf' table. */ + /* Ignored for Type 2 font faces. */ + /* */ + /* glyf_len :: The length of the `glyf' table. Needed */ + /* for malformed `loca' tables. */ + /* */ + /* font_program_size :: Size in bytecodes of the face's font */ + /* program. 0 if none defined. Ignored for */ + /* Type 2 fonts. */ + /* */ + /* font_program :: The face's font program (bytecode stream) */ + /* executed at load time, also used during */ + /* glyph rendering. Comes from the `fpgm' */ + /* table. Ignored for Type 2 font fonts. */ + /* */ + /* cvt_program_size :: The size in bytecodes of the face's cvt */ + /* program. Ignored for Type 2 fonts. */ + /* */ + /* cvt_program :: The face's cvt program (bytecode stream) */ + /* executed each time an instance/size is */ + /* changed/reset. Comes from the `prep' */ + /* table. Ignored for Type 2 fonts. */ + /* */ + /* cvt_size :: Size of the control value table (in */ + /* entries). Ignored for Type 2 fonts. */ + /* */ + /* cvt :: The face's original control value table. */ + /* Coordinates are expressed in unscaled font */ + /* units. Comes from the `cvt ' table. */ + /* Ignored for Type 2 fonts. */ + /* */ + /* num_kern_pairs :: The number of kerning pairs present in the */ + /* font file. The engine only loads the */ + /* first horizontal format 0 kern table it */ + /* finds in the font file. Ignored for */ + /* Type 2 fonts. */ + /* */ + /* kern_table_index :: The index of the kerning table in the font */ + /* kerning directory. Ignored for Type 2 */ + /* fonts. */ + /* */ + /* interpreter :: A pointer to the TrueType bytecode */ + /* interpreters field is also used to hook */ + /* the debugger in `ttdebug'. */ + /* */ + /* unpatented_hinting :: If true, use only unpatented methods in */ + /* the bytecode interpreter. */ + /* */ + /* doblend :: A boolean which is set if the font should */ + /* be blended (this is for GX var). */ + /* */ + /* blend :: Contains the data needed to control GX */ + /* variation tables (rather like Multiple */ + /* Master data). */ + /* */ + /* extra :: Reserved for third-party font drivers. */ + /* */ + /* postscript_name :: The PS name of the font. Used by the */ + /* postscript name service. */ + /* */ + typedef struct TT_FaceRec_ + { + FT_FaceRec root; + + TTC_HeaderRec ttc_header; + + FT_ULong format_tag; + FT_UShort num_tables; + TT_Table dir_tables; + + TT_Header header; /* TrueType header table */ + TT_HoriHeader horizontal; /* TrueType horizontal header */ + + TT_MaxProfile max_profile; +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_ULong max_components; /* stubbed to 0 */ +#endif + + FT_Bool vertical_info; + TT_VertHeader vertical; /* TT Vertical header, if present */ + + FT_UShort num_names; /* number of name records */ + TT_NameTableRec name_table; /* name table */ + + TT_OS2 os2; /* TrueType OS/2 table */ + TT_Postscript postscript; /* TrueType Postscript table */ + + FT_Byte* cmap_table; /* extracted `cmap' table */ + FT_ULong cmap_size; + + TT_Loader_GotoTableFunc goto_table; + + TT_Loader_StartGlyphFunc access_glyph_frame; + TT_Loader_EndGlyphFunc forget_glyph_frame; + TT_Loader_ReadGlyphFunc read_glyph_header; + TT_Loader_ReadGlyphFunc read_simple_glyph; + TT_Loader_ReadGlyphFunc read_composite_glyph; + + /* a typeless pointer to the SFNT_Interface table used to load */ + /* the basic TrueType tables in the face object */ + void* sfnt; + + /* a typeless pointer to the FT_Service_PsCMapsRec table used to */ + /* handle glyph names <-> unicode & Mac values */ + void* psnames; + + + /***********************************************************************/ + /* */ + /* Optional TrueType/OpenType tables */ + /* */ + /***********************************************************************/ + + /* horizontal device metrics */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_HdmxRec hdmx; +#endif + + /* grid-fitting and scaling table */ + TT_GaspRec gasp; /* the `gasp' table */ + + /* PCL 5 table */ + TT_PCLT pclt; + + /* embedded bitmaps support */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_ULong num_sbit_strikes; + TT_SBit_Strike sbit_strikes; +#endif + + FT_ULong num_sbit_scales; + TT_SBit_Scale sbit_scales; + + /* postscript names table */ + TT_Post_NamesRec postscript_names; + + + /***********************************************************************/ + /* */ + /* TrueType-specific fields (ignored by the OTF-Type2 driver) */ + /* */ + /***********************************************************************/ + + /* the glyph locations */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_UShort num_locations_stub; + FT_Long* glyph_locations_stub; +#endif + + /* the font program, if any */ + FT_ULong font_program_size; + FT_Byte* font_program; + + /* the cvt program, if any */ + FT_ULong cvt_program_size; + FT_Byte* cvt_program; + + /* the original, unscaled, control value table */ + FT_ULong cvt_size; + FT_Short* cvt; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + /* the format 0 kerning table, if any */ + FT_Int num_kern_pairs; + FT_Int kern_table_index; + TT_Kern0_Pair kern_pairs; +#endif + + /* A pointer to the bytecode interpreter to use. This is also */ + /* used to hook the debugger for the `ttdebug' utility. */ + TT_Interpreter interpreter; + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + /* Use unpatented hinting only. */ + FT_Bool unpatented_hinting; +#endif + + /***********************************************************************/ + /* */ + /* Other tables or fields. This is used by derivative formats like */ + /* OpenType. */ + /* */ + /***********************************************************************/ + + FT_Generic extra; + + const char* postscript_name; + + /* since version 2.1.8, but was originally placed after */ + /* `glyph_locations_stub' */ + FT_ULong glyf_len; + + /* since version 2.1.8, but was originally placed before `extra' */ +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Bool doblend; + GX_Blend blend; +#endif + + /* since version 2.2 */ + + FT_Byte* horz_metrics; + FT_ULong horz_metrics_size; + + FT_Byte* vert_metrics; + FT_ULong vert_metrics_size; + + FT_ULong num_locations; /* in broken TTF, gid > 0xFFFF */ + FT_Byte* glyph_locations; + + FT_Byte* hdmx_table; + FT_ULong hdmx_table_size; + FT_UInt hdmx_record_count; + FT_ULong hdmx_record_size; + FT_Byte* hdmx_record_sizes; + + FT_Byte* sbit_table; + FT_ULong sbit_table_size; + FT_UInt sbit_num_strikes; + + FT_Byte* kern_table; + FT_ULong kern_table_size; + FT_UInt num_kern_tables; + FT_UInt32 kern_avail_bits; + FT_UInt32 kern_order_bits; + +#ifdef TT_CONFIG_OPTION_BDF + TT_BDFRec bdf; +#endif /* TT_CONFIG_OPTION_BDF */ + + /* since 2.3.0 */ + FT_ULong horz_metrics_offset; + FT_ULong vert_metrics_offset; + + } TT_FaceRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GlyphZoneRec */ + /* */ + /* <Description> */ + /* A glyph zone is used to load, scale and hint glyph outline */ + /* coordinates. */ + /* */ + /* <Fields> */ + /* memory :: A handle to the memory manager. */ + /* */ + /* max_points :: The maximal size in points of the zone. */ + /* */ + /* max_contours :: Max size in links contours of the zone. */ + /* */ + /* n_points :: The current number of points in the zone. */ + /* */ + /* n_contours :: The current number of contours in the zone. */ + /* */ + /* org :: The original glyph coordinates (font */ + /* units/scaled). */ + /* */ + /* cur :: The current glyph coordinates (scaled/hinted). */ + /* */ + /* tags :: The point control tags. */ + /* */ + /* contours :: The contours end points. */ + /* */ + /* first_point :: Offset of the current subglyph's first point. */ + /* */ + typedef struct TT_GlyphZoneRec_ + { + FT_Memory memory; + FT_UShort max_points; + FT_UShort max_contours; + FT_UShort n_points; /* number of points in zone */ + FT_Short n_contours; /* number of contours */ + + FT_Vector* org; /* original point coordinates */ + FT_Vector* cur; /* current point coordinates */ + FT_Vector* orus; /* original (unscaled) point coordinates */ + + FT_Byte* tags; /* current touch flags */ + FT_UShort* contours; /* contour end points */ + + FT_UShort first_point; /* offset of first (#0) point */ + + } TT_GlyphZoneRec, *TT_GlyphZone; + + + /* handle to execution context */ + typedef struct TT_ExecContextRec_* TT_ExecContext; + + /* glyph loader structure */ + typedef struct TT_LoaderRec_ + { + FT_Face face; + FT_Size size; + FT_GlyphSlot glyph; + FT_GlyphLoader gloader; + + FT_ULong load_flags; + FT_UInt glyph_index; + + FT_Stream stream; + FT_Int byte_len; + + FT_Short n_contours; + FT_BBox bbox; + FT_Int left_bearing; + FT_Int advance; + FT_Int linear; + FT_Bool linear_def; + FT_Bool preserve_pps; + FT_Vector pp1; + FT_Vector pp2; + + FT_ULong glyf_offset; + + /* the zone where we load our glyphs */ + TT_GlyphZoneRec base; + TT_GlyphZoneRec zone; + + TT_ExecContext exec; + FT_Byte* instructions; + FT_ULong ins_pos; + + /* for possible extensibility in other formats */ + void* other; + + /* since version 2.1.8 */ + FT_Int top_bearing; + FT_Int vadvance; + FT_Vector pp3; + FT_Vector pp4; + + /* since version 2.2.1 */ + FT_Byte* cursor; + FT_Byte* limit; + + } TT_LoaderRec; + + +FT_END_HEADER + +#endif /* __TTTYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/main.conf b/uppsrc/plugin/FT_fontsys/main.conf new file mode 100644 index 000000000..2e0a384bd --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/main.conf @@ -0,0 +1 @@ +#define CUSTOM_FONTSYS diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afangles.c b/uppsrc/plugin/FT_fontsys/src/autofit/afangles.c new file mode 100644 index 000000000..790af1779 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afangles.c @@ -0,0 +1,292 @@ +/***************************************************************************/ +/* */ +/* afangles.c */ +/* */ +/* Routines used to compute vector angles with limited accuracy */ +/* and very high speed. It also contains sorting routines (body). */ +/* */ +/* Copyright 2003-2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "aftypes.h" + + +#if 0 + + FT_LOCAL_DEF( FT_Int ) + af_corner_is_flat( FT_Pos x_in, + FT_Pos y_in, + FT_Pos x_out, + FT_Pos y_out ) + { + FT_Pos ax = x_in; + FT_Pos ay = y_in; + + FT_Pos d_in, d_out, d_corner; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + d_in = ax + ay; + + ax = x_out; + if ( ax < 0 ) + ax = -ax; + ay = y_out; + if ( ay < 0 ) + ay = -ay; + d_out = ax + ay; + + ax = x_out + x_in; + if ( ax < 0 ) + ax = -ax; + ay = y_out + y_in; + if ( ay < 0 ) + ay = -ay; + d_corner = ax + ay; + + return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); + } + + + FT_LOCAL_DEF( FT_Int ) + af_corner_orientation( FT_Pos x_in, + FT_Pos y_in, + FT_Pos x_out, + FT_Pos y_out ) + { + FT_Pos delta; + + + delta = x_in * y_out - y_in * x_out; + + if ( delta == 0 ) + return 0; + else + return 1 - 2 * ( delta < 0 ); + } + +#endif /* 0 */ + + + /* + * We are not using `af_angle_atan' anymore, but we keep the source + * code below just in case... + */ + + +#if 0 + + + /* + * The trick here is to realize that we don't need a very accurate angle + * approximation. We are going to use the result of `af_angle_atan' to + * only compare the sign of angle differences, or check whether its + * magnitude is very small. + * + * The approximation + * + * dy * PI / (|dx|+|dy|) + * + * should be enough, and much faster to compute. + */ + FT_LOCAL_DEF( AF_Angle ) + af_angle_atan( FT_Fixed dx, + FT_Fixed dy ) + { + AF_Angle angle; + FT_Fixed ax = dx; + FT_Fixed ay = dy; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + + ax += ay; + + if ( ax == 0 ) + angle = 0; + else + { + angle = ( AF_ANGLE_PI2 * dy ) / ( ax + ay ); + if ( dx < 0 ) + { + if ( angle >= 0 ) + angle = AF_ANGLE_PI - angle; + else + angle = -AF_ANGLE_PI - angle; + } + } + + return angle; + } + + +#elif 0 + + + /* the following table has been automatically generated with */ + /* the `mather.py' Python script */ + +#define AF_ATAN_BITS 8 + + static const FT_Byte af_arctan[1L << AF_ATAN_BITS] = + { + 0, 0, 1, 1, 1, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 5, + 5, 5, 6, 6, 6, 7, 7, 7, + 8, 8, 8, 9, 9, 9, 10, 10, + 10, 10, 11, 11, 11, 12, 12, 12, + 13, 13, 13, 14, 14, 14, 14, 15, + 15, 15, 16, 16, 16, 17, 17, 17, + 18, 18, 18, 18, 19, 19, 19, 20, + 20, 20, 21, 21, 21, 21, 22, 22, + 22, 23, 23, 23, 24, 24, 24, 24, + 25, 25, 25, 26, 26, 26, 26, 27, + 27, 27, 28, 28, 28, 28, 29, 29, + 29, 30, 30, 30, 30, 31, 31, 31, + 31, 32, 32, 32, 33, 33, 33, 33, + 34, 34, 34, 34, 35, 35, 35, 35, + 36, 36, 36, 36, 37, 37, 37, 38, + 38, 38, 38, 39, 39, 39, 39, 40, + 40, 40, 40, 41, 41, 41, 41, 42, + 42, 42, 42, 42, 43, 43, 43, 43, + 44, 44, 44, 44, 45, 45, 45, 45, + 46, 46, 46, 46, 46, 47, 47, 47, + 47, 48, 48, 48, 48, 48, 49, 49, + 49, 49, 50, 50, 50, 50, 50, 51, + 51, 51, 51, 51, 52, 52, 52, 52, + 52, 53, 53, 53, 53, 53, 54, 54, + 54, 54, 54, 55, 55, 55, 55, 55, + 56, 56, 56, 56, 56, 57, 57, 57, + 57, 57, 57, 58, 58, 58, 58, 58, + 59, 59, 59, 59, 59, 59, 60, 60, + 60, 60, 60, 61, 61, 61, 61, 61, + 61, 62, 62, 62, 62, 62, 62, 63, + 63, 63, 63, 63, 63, 64, 64, 64 + }; + + + FT_LOCAL_DEF( AF_Angle ) + af_angle_atan( FT_Fixed dx, + FT_Fixed dy ) + { + AF_Angle angle; + + + /* check trivial cases */ + if ( dy == 0 ) + { + angle = 0; + if ( dx < 0 ) + angle = AF_ANGLE_PI; + return angle; + } + else if ( dx == 0 ) + { + angle = AF_ANGLE_PI2; + if ( dy < 0 ) + angle = -AF_ANGLE_PI2; + return angle; + } + + angle = 0; + if ( dx < 0 ) + { + dx = -dx; + dy = -dy; + angle = AF_ANGLE_PI; + } + + if ( dy < 0 ) + { + FT_Pos tmp; + + + tmp = dx; + dx = -dy; + dy = tmp; + angle -= AF_ANGLE_PI2; + } + + if ( dx == 0 && dy == 0 ) + return 0; + + if ( dx == dy ) + angle += AF_ANGLE_PI4; + else if ( dx > dy ) + angle += af_arctan[FT_DivFix( dy, dx ) >> ( 16 - AF_ATAN_BITS )]; + else + angle += AF_ANGLE_PI2 - + af_arctan[FT_DivFix( dx, dy ) >> ( 16 - AF_ATAN_BITS )]; + + if ( angle > AF_ANGLE_PI ) + angle -= AF_ANGLE_2PI; + + return angle; + } + + +#endif /* 0 */ + + + FT_LOCAL_DEF( void ) + af_sort_pos( FT_UInt count, + FT_Pos* table ) + { + FT_UInt i, j; + FT_Pos swap; + + + for ( i = 1; i < count; i++ ) + { + for ( j = i; j > 0; j-- ) + { + if ( table[j] > table[j - 1] ) + break; + + swap = table[j]; + table[j] = table[j - 1]; + table[j - 1] = swap; + } + } + } + + + FT_LOCAL_DEF( void ) + af_sort_widths( FT_UInt count, + AF_Width table ) + { + FT_UInt i, j; + AF_WidthRec swap; + + + for ( i = 1; i < count; i++ ) + { + for ( j = i; j > 0; j-- ) + { + if ( table[j].org > table[j - 1].org ) + break; + + swap = table[j]; + table[j] = table[j - 1]; + table[j - 1] = swap; + } + } + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afangles.h b/uppsrc/plugin/FT_fontsys/src/autofit/afangles.h new file mode 100644 index 000000000..f33f9e108 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afangles.h @@ -0,0 +1,7 @@ +/* + * afangles.h + * + * This is a dummy file, used to please the build system. It is never + * included by the auto-fitter sources. + * + */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afcjk.c b/uppsrc/plugin/FT_fontsys/src/autofit/afcjk.c new file mode 100644 index 000000000..1a669f5f7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afcjk.c @@ -0,0 +1,2267 @@ +/***************************************************************************/ +/* */ +/* afcjk.c */ +/* */ +/* Auto-fitter hinting routines for CJK script (body). */ +/* */ +/* Copyright 2006-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /* + * The algorithm is based on akito's autohint patch, available here: + * + * http://www.kde.gr.jp/~akito/patch/freetype2/ + * + */ + +#include <freetype/ft2build.h> +#include FT_ADVANCES_H +#include FT_INTERNAL_DEBUG_H + +#include "aftypes.h" +#include "aflatin.h" + + +#ifdef AF_CONFIG_OPTION_CJK + +#undef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT + +#include "afcjk.h" +#include "aferrors.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_afcjk + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Basically the Latin version with AF_CJKMetrics */ + /* to replace AF_LatinMetrics. */ + + FT_LOCAL_DEF( void ) + af_cjk_metrics_init_widths( AF_CJKMetrics metrics, + FT_Face face, + FT_ULong charcode ) + { + /* scan the array of segments in each direction */ + AF_GlyphHintsRec hints[1]; + + + af_glyph_hints_init( hints, face->memory ); + + metrics->axis[AF_DIMENSION_HORZ].width_count = 0; + metrics->axis[AF_DIMENSION_VERT].width_count = 0; + + { + FT_Error error; + FT_UInt glyph_index; + int dim; + AF_CJKMetricsRec dummy[1]; + AF_Scaler scaler = &dummy->root.scaler; + + + glyph_index = FT_Get_Char_Index( face, charcode ); + if ( glyph_index == 0 ) + goto Exit; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || face->glyph->outline.n_points <= 0 ) + goto Exit; + + FT_ZERO( dummy ); + + dummy->units_per_em = metrics->units_per_em; + + scaler->x_scale = 0x10000L; + scaler->y_scale = 0x10000L; + scaler->x_delta = 0; + scaler->y_delta = 0; + + scaler->face = face; + scaler->render_mode = FT_RENDER_MODE_NORMAL; + scaler->flags = 0; + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); + + error = af_glyph_hints_reload( hints, &face->glyph->outline ); + if ( error ) + goto Exit; + + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_CJKAxis axis = &metrics->axis[dim]; + AF_AxisHints axhints = &hints->axis[dim]; + AF_Segment seg, limit, link; + FT_UInt num_widths = 0; + + + error = af_latin_hints_compute_segments( hints, (AF_Dimension)dim ); + if ( error ) + goto Exit; + + af_latin_hints_link_segments( hints, (AF_Dimension)dim ); + + seg = axhints->segments; + limit = seg + axhints->num_segments; + + for ( ; seg < limit; seg++ ) + { + link = seg->link; + + /* we only consider stem segments there! */ + if ( link && link->link == seg && link > seg ) + { + FT_Pos dist; + + + dist = seg->pos - link->pos; + if ( dist < 0 ) + dist = -dist; + + if ( num_widths < AF_CJK_MAX_WIDTHS ) + axis->widths[num_widths++].org = dist; + } + } + + af_sort_widths( num_widths, axis->widths ); + axis->width_count = num_widths; + } + + Exit: + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_CJKAxis axis = &metrics->axis[dim]; + FT_Pos stdw; + + + stdw = ( axis->width_count > 0 ) ? axis->widths[0].org + : AF_LATIN_CONSTANT( metrics, 50 ); + + /* let's try 20% of the smallest width */ + axis->edge_distance_threshold = stdw / 5; + axis->standard_width = stdw; + axis->extra_light = 0; + } + } + + af_glyph_hints_done( hints ); + } + + +#define AF_CJK_MAX_TEST_CHARACTERS 32 + + + /* Each blue zone has two types of fill and unfill, this is, */ + /* filling the entire glyph square or not. */ + + enum + { + AF_CJK_BLUE_TYPE_FILL, + AF_CJK_BLUE_TYPE_UNFILL, + AF_CJK_BLUE_TYPE_MAX + }; + + + /* Put some common and representative Han Ideographs characters here. */ + static const FT_ULong af_cjk_hani_blue_chars[AF_CJK_BLUE_MAX] + [AF_CJK_BLUE_TYPE_MAX] + [AF_CJK_MAX_TEST_CHARACTERS] = + { + { + { + 0x4ED6, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730, + 0x5BF9, 0x5C0D, 0x5C31, 0x5E2D, 0x6211, 0x65F6, 0x6642, 0x6703, + 0x6765, 0x70BA, 0x80FD, 0x8230, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019, + 0x9F4A /* top fill */ + }, + { + 0x519B, 0x540C, 0x5DF2, 0x613F, 0x65E2, 0x661F, 0x662F, 0x666F, + 0x6C11, 0x7167, 0x73B0, 0x73FE, 0x7406, 0x7528, 0x7F6E, 0x8981, + 0x8ECD, 0x90A3, 0x914D, 0x91CC, 0x958B, 0x96F7, 0x9732, 0x9762, + 0x987E /* top unfill */ + } + }, + { + { + 0x4E2A, 0x4E3A, 0x4EBA, 0x4ED6, 0x4EE5, 0x4EEC, 0x4F60, 0x4F86, + 0x500B, 0x5011, 0x5230, 0x548C, 0x5927, 0x5BF9, 0x5C0D, 0x5C31, + 0x6211, 0x65F6, 0x6642, 0x6709, 0x6765, 0x70BA, 0x8981, 0x8AAA, + 0x8BF4 /* bottom fill */ + }, + { + 0x4E3B, 0x4E9B, 0x56E0, 0x5B83, 0x60F3, 0x610F, 0x7406, 0x751F, + 0x7576, 0x770B, 0x7740, 0x7F6E, 0x8005, 0x81EA, 0x8457, 0x88E1, + 0x8FC7, 0x8FD8, 0x8FDB, 0x9032, 0x904E, 0x9053, 0x9084, 0x91CC, + 0x9762 /* bottom unfill */ + } + }, +#ifndef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT + { {0x0000}, {0x0000} }, + { {0x0000}, {0x0000} } +#else + { + { + 0x4E9B, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730, + 0x5979, 0x5C06, 0x5C07, 0x5C31, 0x5E74, 0x5F97, 0x60C5, 0x6700, + 0x6837, 0x6A23, 0x7406, 0x80FD, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019, + 0x901A /* left fill */ + }, + { + 0x5373, 0x5417, 0x5427, 0x542C, 0x5462, 0x54C1, 0x54CD, 0x55CE, + 0x5E08, 0x5E2B, 0x6536, 0x65AD, 0x65B7, 0x660E, 0x773C, 0x9593, + 0x95F4, 0x9645, 0x9648, 0x9650, 0x9664, 0x9673, 0x968F, 0x969B, + 0x96A8 /* left unfill */ + } + }, + { + { + 0x4E8B, 0x524D, 0x5B78, 0x5C06, 0x5C07, 0x60C5, 0x60F3, 0x6216, + 0x653F, 0x65AF, 0x65B0, 0x6837, 0x6A23, 0x6C11, 0x6C92, 0x6CA1, + 0x7136, 0x7279, 0x73B0, 0x73FE, 0x7403, 0x7B2C, 0x7D93, 0x8C01, + 0x8D77 /* right fill */ + }, + { + 0x4F8B, 0x5225, 0x522B, 0x5236, 0x52A8, 0x52D5, 0x5417, 0x55CE, + 0x589E, 0x6307, 0x660E, 0x671D, 0x671F, 0x6784, 0x7269, 0x786E, + 0x79CD, 0x8ABF, 0x8C03, 0x8CBB, 0x8D39, 0x90A3, 0x90FD, 0x9593, + 0x95F4 /* right unfill */ + } + } +#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */ + }; + + + /* Calculate blue zones for all the CJK_BLUE_XXX's. */ + + static void + af_cjk_metrics_init_blues( AF_CJKMetrics metrics, + FT_Face face, + const FT_ULong blue_chars + [AF_CJK_BLUE_MAX] + [AF_CJK_BLUE_TYPE_MAX] + [AF_CJK_MAX_TEST_CHARACTERS] ) + { + FT_Pos fills[AF_CJK_MAX_TEST_CHARACTERS]; + FT_Pos flats[AF_CJK_MAX_TEST_CHARACTERS]; + + FT_Int num_fills; + FT_Int num_flats; + + FT_Int bb; + AF_CJKBlue blue; + FT_Error error; + AF_CJKAxis axis; + FT_GlyphSlot glyph = face->glyph; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_String* cjk_blue_name[AF_CJK_BLUE_MAX] = { + (FT_String*)"top", + (FT_String*)"bottom", + (FT_String*)"left", + (FT_String*)"right" + }; + FT_String* cjk_blue_type_name[AF_CJK_BLUE_TYPE_MAX] = { + (FT_String*)"filled", + (FT_String*)"unfilled" + }; +#endif + + + /* We compute the blues simply by loading each character from the */ + /* `blue_chars[blues]' string, then computing its extreme points */ + /* (depending blue zone type etc.). */ + + FT_TRACE5(( "cjk blue zones computation\n" )); + FT_TRACE5(( "------------------------------------------------\n" )); + + for ( bb = 0; bb < AF_CJK_BLUE_MAX; bb++ ) + { + FT_Int fill_type; + FT_Pos* blue_ref; + FT_Pos* blue_shoot; + + + num_fills = 0; + num_flats = 0; + + for ( fill_type = 0; fill_type < AF_CJK_BLUE_TYPE_MAX; fill_type++ ) + { + const FT_ULong* p = blue_chars[bb][fill_type]; + const FT_ULong* limit = p + AF_CJK_MAX_TEST_CHARACTERS; + FT_Bool fill = FT_BOOL( + fill_type == AF_CJK_BLUE_TYPE_FILL ); + + + FT_TRACE5(( "cjk blue %s/%s\n", cjk_blue_name[bb], + cjk_blue_type_name[fill_type] )); + + + for ( ; p < limit && *p; p++ ) + { + FT_UInt glyph_index; + FT_Pos best_pos; /* same as points.y */ + FT_Int best_point; + FT_Vector* points; + + + FT_TRACE5(( " U+%lX...", *p )); + + /* load the character in the face -- skip unknown or empty ones */ + glyph_index = FT_Get_Char_Index( face, *p ); + if ( glyph_index == 0 ) + { + FT_TRACE5(( "unavailable\n" )); + continue; + } + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || glyph->outline.n_points <= 0 ) + { + FT_TRACE5(( "no outline\n" )); + continue; + } + + /* now compute min or max point indices and coordinates */ + points = glyph->outline.points; + best_point = -1; + best_pos = 0; /* make compiler happy */ + + { + FT_Int nn; + FT_Int first = 0; + FT_Int last = -1; + + + for ( nn = 0; + nn < glyph->outline.n_contours; + first = last + 1, nn++ ) + { + FT_Int pp; + + + last = glyph->outline.contours[nn]; + + /* Avoid single-point contours since they are never */ + /* rasterized. In some fonts, they correspond to mark */ + /* attachment points which are way outside of the glyph's */ + /* real outline. */ + if ( last <= first ) + continue; + + switch ( bb ) + { + case AF_CJK_BLUE_TOP: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y > best_pos ) + { + best_point = pp; + best_pos = points[pp].y; + } + break; + + case AF_CJK_BLUE_BOTTOM: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y < best_pos ) + { + best_point = pp; + best_pos = points[pp].y; + } + break; + + case AF_CJK_BLUE_LEFT: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].x < best_pos ) + { + best_point = pp; + best_pos = points[pp].x; + } + break; + + case AF_CJK_BLUE_RIGHT: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].x > best_pos ) + { + best_point = pp; + best_pos = points[pp].x; + } + break; + + default: + ; + } + } + FT_TRACE5(( "best_pos=%5ld\n", best_pos )); + } + + if ( fill ) + fills[num_fills++] = best_pos; + else + flats[num_flats++] = best_pos; + } + } + + if ( num_flats == 0 && num_fills == 0 ) + { + /* + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then + */ + FT_TRACE5(( "empty\n" )); + continue; + } + + /* we have computed the contents of the `fill' and `flats' tables, */ + /* now determine the reference position of the blue -- */ + /* we simply take the median value after a simple sort */ + af_sort_pos( num_flats, flats ); + af_sort_pos( num_fills, fills ); + + if ( AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_BOTTOM == bb ) + axis = &metrics->axis[AF_DIMENSION_VERT]; + else + axis = &metrics->axis[AF_DIMENSION_HORZ]; + + blue = & axis->blues[axis->blue_count]; + blue_ref = & blue->ref.org; + blue_shoot = & blue->shoot.org; + + axis->blue_count++; + if ( num_flats == 0 ) + { + *blue_ref = fills[num_fills / 2]; + *blue_shoot = fills[num_fills / 2]; + } + else if ( num_fills == 0 ) + { + *blue_ref = flats[num_flats / 2]; + *blue_shoot = flats[num_flats / 2]; + } + else + { + *blue_ref = fills[num_fills / 2]; + *blue_shoot = flats[num_flats / 2]; + } + + /* make sure blue_ref >= blue_shoot for top/right or */ + /* vice versa for bottom/left */ + if ( *blue_shoot != *blue_ref ) + { + FT_Pos ref = *blue_ref; + FT_Pos shoot = *blue_shoot; + FT_Bool under_ref = FT_BOOL( shoot < ref ); + + + if ( (AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_RIGHT == bb) ^ under_ref ) + *blue_shoot = *blue_ref = ( shoot + ref ) / 2; + } + + blue->flags = 0; + if ( AF_CJK_BLUE_TOP == bb ) + blue->flags |= AF_CJK_BLUE_IS_TOP; + else if ( AF_CJK_BLUE_RIGHT == bb ) + blue->flags |= AF_CJK_BLUE_IS_RIGHT; + + FT_TRACE5(( "-- cjk %s bluezone ref = %ld shoot = %ld\n", + cjk_blue_name[bb], *blue_ref, *blue_shoot )); + } + + return; + } + + + /* Basically the Latin version with type AF_CJKMetrics for metrics. */ + FT_LOCAL_DEF( void ) + af_cjk_metrics_check_digits( AF_CJKMetrics metrics, + FT_Face face ) + { + FT_UInt i; + FT_Bool started = 0, same_width = 1; + FT_Fixed advance, old_advance = 0; + + + /* check whether all ASCII digits have the same advance width; */ + /* digit `0' is 0x30 in all supported charmaps */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt glyph_index; + + + glyph_index = FT_Get_Char_Index( face, i ); + if ( glyph_index == 0 ) + continue; + + if ( FT_Get_Advance( face, glyph_index, + FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_IGNORE_TRANSFORM, + &advance ) ) + continue; + + if ( started ) + { + if ( advance != old_advance ) + { + same_width = 0; + break; + } + } + else + { + old_advance = advance; + started = 1; + } + } + + metrics->root.digits_have_same_width = same_width; + } + + + FT_LOCAL_DEF( FT_Error ) + af_cjk_metrics_init( AF_CJKMetrics metrics, + FT_Face face ) + { + FT_CharMap oldmap = face->charmap; + + + metrics->units_per_em = face->units_per_EM; + + if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) + face->charmap = NULL; + else + { + af_cjk_metrics_init_widths( metrics, face, 0x7530 ); + af_cjk_metrics_init_blues( metrics, face, af_cjk_hani_blue_chars ); + af_cjk_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + + return AF_Err_Ok; + } + + + static void + af_cjk_metrics_scale_dim( AF_CJKMetrics metrics, + AF_Scaler scaler, + AF_Dimension dim ) + { + FT_Fixed scale; + FT_Pos delta; + AF_CJKAxis axis; + FT_UInt nn; + + + axis = &metrics->axis[dim]; + + if ( dim == AF_DIMENSION_HORZ ) + { + scale = scaler->x_scale; + delta = scaler->x_delta; + } + else + { + scale = scaler->y_scale; + delta = scaler->y_delta; + } + + if ( axis->org_scale == scale && axis->org_delta == delta ) + return; + + axis->org_scale = scale; + axis->org_delta = delta; + + axis->scale = scale; + axis->delta = delta; + + /* scale the blue zones */ + for ( nn = 0; nn < axis->blue_count; nn++ ) + { + AF_CJKBlue blue = &axis->blues[nn]; + FT_Pos dist; + + + blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; + blue->ref.fit = blue->ref.cur; + blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; + blue->shoot.fit = blue->shoot.cur; + blue->flags &= ~AF_CJK_BLUE_ACTIVE; + + /* a blue zone is only active if it is less than 3/4 pixels tall */ + dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); + if ( dist <= 48 && dist >= -48 ) + { + FT_Pos delta1, delta2; + + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + + /* shoot is under shoot for cjk */ + delta1 = FT_DivFix( blue->ref.fit, scale ) - blue->shoot.org; + delta2 = delta1; + if ( delta1 < 0 ) + delta2 = -delta2; + + delta2 = FT_MulFix( delta2, scale ); + + FT_TRACE5(( "delta: %d", delta1 )); + if ( delta2 < 32 ) + delta2 = 0; +#if 0 + else if ( delta2 < 64 ) + delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); +#endif + else + delta2 = FT_PIX_ROUND( delta2 ); + FT_TRACE5(( "/%d\n", delta2 )); + + if ( delta1 < 0 ) + delta2 = -delta2; + + blue->shoot.fit = blue->ref.fit - delta2; + + FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]: " + "ref: cur=%.2f fit=%.2f shoot: cur=%.2f fit=%.2f\n", + ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V', + nn, blue->ref.org, blue->shoot.org, + blue->ref.cur / 64.0, blue->ref.fit / 64.0, + blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); + + blue->flags |= AF_CJK_BLUE_ACTIVE; + } + } + } + + + FT_LOCAL_DEF( void ) + af_cjk_metrics_scale( AF_CJKMetrics metrics, + AF_Scaler scaler ) + { + metrics->root.scaler = *scaler; + + af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); + af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + af_cjk_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + FT_Error error; + AF_Segment seg; + + + error = af_latin_hints_compute_segments( hints, dim ); + if ( error ) + return error; + + /* a segment is round if it doesn't have successive */ + /* on-curve points. */ + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Point pt = seg->first; + AF_Point last = seg->last; + AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + AF_Flags f1; + + + seg->flags &= ~AF_EDGE_ROUND; + + for ( ; pt != last; f0 = f1 ) + { + pt = pt->next; + f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + + if ( !f0 && !f1 ) + break; + + if ( pt == last ) + seg->flags |= AF_EDGE_ROUND; + } + } + + return AF_Err_Ok; + } + + + static void + af_cjk_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Direction major_dir = axis->major_dir; + AF_Segment seg1, seg2; + FT_Pos len_threshold; + FT_Pos dist_threshold; + + + len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); + + dist_threshold = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + dist_threshold = FT_DivFix( 64 * 3, dist_threshold ); + + /* now compare each segment to the others */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + /* the fake segments are for metrics hinting only */ + if ( seg1->first == seg1->last ) + continue; + + if ( seg1->dir != major_dir ) + continue; + + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + if ( seg2 != seg1 && seg1->dir + seg2->dir == 0 ) + { + FT_Pos dist = seg2->pos - seg1->pos; + + + if ( dist < 0 ) + continue; + + { + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len; + + + if ( min < seg2->min_coord ) + min = seg2->min_coord; + + if ( max > seg2->max_coord ) + max = seg2->max_coord; + + len = max - min; + if ( len >= len_threshold ) + { + if ( dist * 8 < seg1->score * 9 && + ( dist * 8 < seg1->score * 7 || seg1->len < len ) ) + { + seg1->score = dist; + seg1->len = len; + seg1->link = seg2; + } + + if ( dist * 8 < seg2->score * 9 && + ( dist * 8 < seg2->score * 7 || seg2->len < len ) ) + { + seg2->score = dist; + seg2->len = len; + seg2->link = seg1; + } + } + } + } + } + + /* + * now compute the `serif' segments + * + * In Hanzi, some strokes are wider on one or both of the ends. + * We either identify the stems on the ends as serifs or remove + * the linkage, depending on the length of the stems. + * + */ + + { + AF_Segment link1, link2; + + + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + link1 = seg1->link; + if ( !link1 || link1->link != seg1 || link1->pos <= seg1->pos ) + continue; + + if ( seg1->score >= dist_threshold ) + continue; + + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + { + if ( seg2->pos > seg1->pos || seg1 == seg2 ) + continue; + + link2 = seg2->link; + if ( !link2 || link2->link != seg2 || link2->pos < link1->pos ) + continue; + + if ( seg1->pos == seg2->pos && link1->pos == link2->pos ) + continue; + + if ( seg2->score <= seg1->score || seg1->score * 4 <= seg2->score ) + continue; + + /* seg2 < seg1 < link1 < link2 */ + + if ( seg1->len >= seg2->len * 3 ) + { + AF_Segment seg; + + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Segment link = seg->link; + + + if ( link == seg2 ) + { + seg->link = 0; + seg->serif = link1; + } + else if ( link == link2 ) + { + seg->link = 0; + seg->serif = seg1; + } + } + } + else + { + seg1->link = link1->link = 0; + + break; + } + } + } + } + + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + seg2 = seg1->link; + + if ( seg2 ) + { + seg2->num_linked++; + if ( seg2->link != seg1 ) + { + seg1->link = 0; + + if ( seg2->score < dist_threshold || seg1->score < seg2->score * 4 ) + seg1->serif = seg2->link; + else + seg2->num_linked--; + } + } + } + } + + + static FT_Error + af_cjk_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Error error = AF_Err_Ok; + FT_Memory memory = hints->memory; + AF_CJKAxis laxis = &((AF_CJKMetrics)hints->metrics)->axis[dim]; + + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + + FT_Fixed scale; + FT_Pos edge_distance_threshold; + + + axis->num_edges = 0; + + scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + + /*********************************************************************/ + /* */ + /* We begin by generating a sorted table of edges for the current */ + /* direction. To do so, we simply scan each segment and try to find */ + /* an edge in our table that corresponds to its position. */ + /* */ + /* If no edge is found, we create and insert a new edge in the */ + /* sorted table. Otherwise, we simply add the segment to the edge's */ + /* list which is then processed in the second step to compute the */ + /* edge's properties. */ + /* */ + /* Note that the edges table is sorted along the segment/edge */ + /* position. */ + /* */ + /*********************************************************************/ + + edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, + scale ); + if ( edge_distance_threshold > 64 / 4 ) + edge_distance_threshold = FT_DivFix( 64 / 4, scale ); + else + edge_distance_threshold = laxis->edge_distance_threshold; + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge found = 0; + FT_Pos best = 0xFFFFU; + FT_Int ee; + + + /* look for an edge corresponding to the segment */ + for ( ee = 0; ee < axis->num_edges; ee++ ) + { + AF_Edge edge = axis->edges + ee; + FT_Pos dist; + + + if ( edge->dir != seg->dir ) + continue; + + dist = seg->pos - edge->fpos; + if ( dist < 0 ) + dist = -dist; + + if ( dist < edge_distance_threshold && dist < best ) + { + AF_Segment link = seg->link; + + + /* check whether all linked segments of the candidate edge */ + /* can make a single edge. */ + if ( link ) + { + AF_Segment seg1 = edge->first; + AF_Segment link1; + FT_Pos dist2 = 0; + + + do + { + link1 = seg1->link; + if ( link1 ) + { + dist2 = AF_SEGMENT_DIST( link, link1 ); + if ( dist2 >= edge_distance_threshold ) + break; + } + + } while ( ( seg1 = seg1->edge_next ) != edge->first ); + + if ( dist2 >= edge_distance_threshold ) + continue; + } + + best = dist; + found = edge; + } + } + + if ( !found ) + { + AF_Edge edge; + + + /* insert a new edge in the list and */ + /* sort according to the position */ + error = af_axis_hints_new_edge( axis, seg->pos, + (AF_Direction)seg->dir, + memory, &edge ); + if ( error ) + goto Exit; + + /* add the segment to the new edge's list */ + FT_ZERO( edge ); + + edge->first = seg; + edge->last = seg; + edge->fpos = seg->pos; + edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); + seg->edge_next = seg; + edge->dir = seg->dir; + } + else + { + /* if an edge was found, simply add the segment to the edge's */ + /* list */ + seg->edge_next = found->first; + found->last->edge_next = seg; + found->last = seg; + } + } + + /*********************************************************************/ + /* */ + /* Good, we now compute each edge's properties according to segments */ + /* found on its position. Basically, these are as follows. */ + /* */ + /* - edge's main direction */ + /* - stem edge, serif edge or both (which defaults to stem then) */ + /* - rounded edge, straight or both (which defaults to straight) */ + /* - link for edge */ + /* */ + /*********************************************************************/ + + /* first of all, set the `edge' field in each segment -- this is */ + /* required in order to compute edge links */ + /* */ + /* Note that removing this loop and setting the `edge' field of each */ + /* segment directly in the code above slows down execution speed for */ + /* some reasons on platforms like the Sun. */ + + { + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + + + for ( edge = edges; edge < edge_limit; edge++ ) + { + seg = edge->first; + if ( seg ) + do + { + seg->edge = edge; + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + + /* now compute each edge properties */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Int is_round = 0; /* does it contain round segments? */ + FT_Int is_straight = 0; /* does it contain straight segments? */ + + + seg = edge->first; + + do + { + FT_Bool is_serif; + + + /* check for roundness of segment */ + if ( seg->flags & AF_EDGE_ROUND ) + is_round++; + else + is_straight++; + + /* check for links -- if seg->serif is set, then seg->link must */ + /* be ignored */ + is_serif = (FT_Bool)( seg->serif && seg->serif->edge != edge ); + + if ( seg->link || is_serif ) + { + AF_Edge edge2; + AF_Segment seg2; + + + edge2 = edge->link; + seg2 = seg->link; + + if ( is_serif ) + { + seg2 = seg->serif; + edge2 = edge->serif; + } + + if ( edge2 ) + { + FT_Pos edge_delta; + FT_Pos seg_delta; + + + edge_delta = edge->fpos - edge2->fpos; + if ( edge_delta < 0 ) + edge_delta = -edge_delta; + + seg_delta = AF_SEGMENT_DIST( seg, seg2 ); + + if ( seg_delta < edge_delta ) + edge2 = seg2->edge; + } + else + edge2 = seg2->edge; + + if ( is_serif ) + { + edge->serif = edge2; + edge2->flags |= AF_EDGE_SERIF; + } + else + edge->link = edge2; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + + /* set the round/straight flags */ + edge->flags = AF_EDGE_NORMAL; + + if ( is_round > 0 && is_round >= is_straight ) + edge->flags |= AF_EDGE_ROUND; + + /* get rid of serifs if link is set */ + /* XXX: This gets rid of many unpleasant artefacts! */ + /* Example: the `c' in cour.pfa at size 13 */ + + if ( edge->serif && edge->link ) + edge->serif = 0; + } + } + + Exit: + return error; + } + + + static FT_Error + af_cjk_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ) + { + FT_Error error; + + + error = af_cjk_hints_compute_segments( hints, dim ); + if ( !error ) + { + af_cjk_hints_link_segments( hints, dim ); + + error = af_cjk_hints_compute_edges( hints, dim ); + } + return error; + } + + + FT_LOCAL_DEF( void ) + af_cjk_hints_compute_blue_edges( AF_GlyphHints hints, + AF_CJKMetrics metrics, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edge = axis->edges; + AF_Edge edge_limit = edge + axis->num_edges; + AF_CJKAxis cjk = &metrics->axis[dim]; + FT_Fixed scale = cjk->scale; + FT_Pos best_dist0; /* initial threshold */ + + + /* compute the initial threshold as a fraction of the EM size */ + best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); + + if ( best_dist0 > 64 / 2 ) /* maximum 1/2 pixel */ + best_dist0 = 64 / 2; + + /* compute which blue zones are active, i.e. have their scaled */ + /* size < 3/4 pixels */ + + /* If the distant between an edge and a blue zone is shorter than */ + /* best_dist0, set the blue zone for the edge. Then search for */ + /* the blue zone with the smallest best_dist to the edge. */ + + for ( ; edge < edge_limit; edge++ ) + { + FT_UInt bb; + AF_Width best_blue = NULL; + FT_Pos best_dist = best_dist0; + + + for ( bb = 0; bb < cjk->blue_count; bb++ ) + { + AF_CJKBlue blue = cjk->blues + bb; + FT_Bool is_top_right_blue, is_major_dir; + + + /* skip inactive blue zones (i.e., those that are too small) */ + if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) ) + continue; + + /* if it is a top zone, check for right edges -- if it is a bottom */ + /* zone, check for left edges */ + /* */ + /* of course, that's for TrueType */ + is_top_right_blue = + FT_BOOL( ( ( blue->flags & AF_CJK_BLUE_IS_TOP ) != 0 ) || + ( ( blue->flags & AF_CJK_BLUE_IS_RIGHT ) != 0 ) ); + is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + + /* if it is a top zone, the edge must be against the major */ + /* direction; if it is a bottom zone, it must be in the major */ + /* direction */ + if ( is_top_right_blue ^ is_major_dir ) + { + FT_Pos dist; + AF_Width compare; + + + /* Compare the edge to the closest blue zone type */ + if ( FT_ABS( edge->fpos - blue->ref.org ) > + FT_ABS( edge->fpos - blue->shoot.org ) ) + compare = &blue->shoot; + else + compare = &blue->ref; + + dist = edge->fpos - compare->org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = compare; + } + } + } + + if ( best_blue ) + edge->blue_edge = best_blue; + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_cjk_hints_init( AF_GlyphHints hints, + AF_CJKMetrics metrics ) + { + FT_Render_Mode mode; + FT_UInt32 scaler_flags, other_flags; + + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); + + /* + * correct x_scale and y_scale when needed, since they may have + * been modified af_cjk_scale_dim above + */ + hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; + hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; + hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; + hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; + + /* compute flags depending on render mode, etc. */ + mode = metrics->root.scaler.render_mode; + +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) + metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; +#endif + + scaler_flags = hints->scaler_flags; + other_flags = 0; + + /* + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) + other_flags |= AF_LATIN_HINTS_HORZ_SNAP; + + /* + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) + other_flags |= AF_LATIN_HINTS_VERT_SNAP; + + /* + * We adjust stems to full pixels only if we don't use the `light' mode. + */ + if ( mode != FT_RENDER_MODE_LIGHT ) + other_flags |= AF_LATIN_HINTS_STEM_ADJUST; + + if ( mode == FT_RENDER_MODE_MONO ) + other_flags |= AF_LATIN_HINTS_MONO; + + scaler_flags |= AF_SCALER_FLAG_NO_ADVANCE; + + hints->scaler_flags = scaler_flags; + hints->other_flags = other_flags; + + return 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K G L Y P H G R I D - F I T T I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* snap a given width in scaled coordinates to one of the */ + /* current standard widths */ + + static FT_Pos + af_cjk_snap_width( AF_Width widths, + FT_Int count, + FT_Pos width ) + { + int n; + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + FT_Pos scaled; + + + for ( n = 0; n < count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + scaled = FT_PIX_ROUND( reference ); + + if ( width >= reference ) + { + if ( width < scaled + 48 ) + width = reference; + } + else + { + if ( width > scaled - 48 ) + width = reference; + } + + return width; + } + + + /* compute the snapped width of a given stem */ + + static FT_Pos + af_cjk_compute_stem_width( AF_GlyphHints hints, + AF_Dimension dim, + FT_Pos width, + AF_Edge_Flags base_flags, + AF_Edge_Flags stem_flags ) + { + AF_CJKMetrics metrics = (AF_CJKMetrics) hints->metrics; + AF_CJKAxis axis = & metrics->axis[dim]; + FT_Pos dist = width; + FT_Int sign = 0; + FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT ); + + FT_UNUSED( base_flags ); + FT_UNUSED( stem_flags ); + + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) + return width; + + if ( dist < 0 ) + { + dist = -width; + sign = 1; + } + + if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || + ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) + { + /* smooth hinting process: very lightly quantize the stem width */ + + if ( axis->width_count > 0 ) + { + if ( FT_ABS( dist - axis->widths[0].cur ) < 40 ) + { + dist = axis->widths[0].cur; + if ( dist < 48 ) + dist = 48; + + goto Done_Width; + } + } + + if ( dist < 54 ) + dist += ( 54 - dist ) / 2 ; + else if ( dist < 3 * 64 ) + { + FT_Pos delta; + + + delta = dist & 63; + dist &= -64; + + if ( delta < 10 ) + dist += delta; + else if ( delta < 22 ) + dist += 10; + else if ( delta < 42 ) + dist += delta; + else if ( delta < 54 ) + dist += 54; + else + dist += delta; + } + } + else + { + /* strong hinting process: snap the stem width to integer pixels */ + + dist = af_cjk_snap_width( axis->widths, axis->width_count, dist ); + + if ( vertical ) + { + /* in the case of vertical hinting, always round */ + /* the stem heights to integer pixels */ + + if ( dist >= 64 ) + dist = ( dist + 16 ) & ~63; + else + dist = 64; + } + else + { + if ( AF_LATIN_HINTS_DO_MONO( hints ) ) + { + /* monochrome horizontal hinting: snap widths to integer pixels */ + /* with a different threshold */ + + if ( dist < 64 ) + dist = 64; + else + dist = ( dist + 32 ) & ~63; + } + else + { + /* for horizontal anti-aliased hinting, we adopt a more subtle */ + /* approach: we strengthen small stems, round stems whose size */ + /* is between 1 and 2 pixels to an integer, otherwise nothing */ + + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + + else if ( dist < 128 ) + dist = ( dist + 22 ) & ~63; + else + /* round otherwise to prevent color fringes in LCD mode */ + dist = ( dist + 32 ) & ~63; + } + } + } + + Done_Width: + if ( sign ) + dist = -dist; + + return dist; + } + + + /* align one stem edge relative to the previous stem edge */ + + static void + af_cjk_align_linked_edge( AF_GlyphHints hints, + AF_Dimension dim, + AF_Edge base_edge, + AF_Edge stem_edge ) + { + FT_Pos dist = stem_edge->opos - base_edge->opos; + + FT_Pos fitted_width = af_cjk_compute_stem_width( + hints, dim, dist, + (AF_Edge_Flags)base_edge->flags, + (AF_Edge_Flags)stem_edge->flags ); + + + stem_edge->pos = base_edge->pos + fitted_width; + } + + + static void + af_cjk_align_serif_edge( AF_GlyphHints hints, + AF_Edge base, + AF_Edge serif ) + { + FT_UNUSED( hints ); + + serif->pos = base->pos + ( serif->opos - base->opos ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** E D G E H I N T I N G ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#define AF_LIGHT_MODE_MAX_HORZ_GAP 9 +#define AF_LIGHT_MODE_MAX_VERT_GAP 15 +#define AF_LIGHT_MODE_MAX_DELTA_ABS 14 + + + static FT_Pos + af_hint_normal_stem( AF_GlyphHints hints, + AF_Edge edge, + AF_Edge edge2, + FT_Pos anchor, + AF_Dimension dim ) + { + FT_Pos org_len, cur_len, org_center; + FT_Pos cur_pos1, cur_pos2; + FT_Pos d_off1, u_off1, d_off2, u_off2, delta; + FT_Pos offset; + FT_Pos threshold = 64; + + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) + { + if ( ( edge->flags & AF_EDGE_ROUND ) && + ( edge2->flags & AF_EDGE_ROUND ) ) + { + if ( dim == AF_DIMENSION_VERT ) + threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP; + else + threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP; + } + else + { + if ( dim == AF_DIMENSION_VERT ) + threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP / 3; + else + threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP / 3; + } + } + + org_len = edge2->opos - edge->opos; + cur_len = af_cjk_compute_stem_width( hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + org_center = ( edge->opos + edge2->opos ) / 2 + anchor; + cur_pos1 = org_center - cur_len / 2; + cur_pos2 = cur_pos1 + cur_len; + d_off1 = cur_pos1 - FT_PIX_FLOOR( cur_pos1 ); + d_off2 = cur_pos2 - FT_PIX_FLOOR( cur_pos2 ); + u_off1 = 64 - d_off1; + u_off2 = 64 - d_off2; + delta = 0; + + + if ( d_off1 == 0 || d_off2 == 0 ) + goto Exit; + + if ( cur_len <= threshold ) + { + if ( d_off2 < cur_len ) + { + if ( u_off1 <= d_off2 ) + delta = u_off1; + else + delta = -d_off2; + } + + goto Exit; + } + + if ( threshold < 64 ) + { + if ( d_off1 >= threshold || u_off1 >= threshold || + d_off2 >= threshold || u_off2 >= threshold ) + goto Exit; + } + + offset = cur_len % 64; + + if ( offset < 32 ) + { + if ( u_off1 <= offset || d_off2 <= offset ) + goto Exit; + } + else + offset = 64 - threshold; + + d_off1 = threshold - u_off1; + u_off1 = u_off1 - offset; + u_off2 = threshold - d_off2; + d_off2 = d_off2 - offset; + + if ( d_off1 <= u_off1 ) + u_off1 = -d_off1; + + if ( d_off2 <= u_off2 ) + u_off2 = -d_off2; + + if ( FT_ABS( u_off1 ) <= FT_ABS( u_off2 ) ) + delta = u_off1; + else + delta = u_off2; + + Exit: + +#if 1 + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) + { + if ( delta > AF_LIGHT_MODE_MAX_DELTA_ABS ) + delta = AF_LIGHT_MODE_MAX_DELTA_ABS; + else if ( delta < -AF_LIGHT_MODE_MAX_DELTA_ABS ) + delta = -AF_LIGHT_MODE_MAX_DELTA_ABS; + } +#endif + + cur_pos1 += delta; + + if ( edge->opos < edge2->opos ) + { + edge->pos = cur_pos1; + edge2->pos = cur_pos1 + cur_len; + } + else + { + edge->pos = cur_pos1 + cur_len; + edge2->pos = cur_pos1; + } + + return delta; + } + + + static void + af_cjk_hint_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + FT_PtrDist n_edges; + AF_Edge edge; + AF_Edge anchor = 0; + FT_Pos delta = 0; + FT_Int skipped = 0; + FT_Bool has_last_stem = FALSE; + FT_Pos last_stem_pos = 0; + + + /* we begin by aligning all stems relative to the blue zone */ + FT_TRACE5(( "==== cjk hinting %s edges =====\n", + dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" )); + + if ( AF_HINTS_DO_BLUES( hints ) ) + { + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Width blue; + AF_Edge edge1, edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + blue = edge->blue_edge; + edge1 = NULL; + edge2 = edge->link; + + if ( blue ) + { + edge1 = edge; + } + else if ( edge2 && edge2->blue_edge ) + { + blue = edge2->blue_edge; + edge1 = edge2; + edge2 = edge; + } + + if ( !edge1 ) + continue; + + FT_TRACE5(( "CJKBLUE: edge %d @%d (opos=%.2f) snapped to (%.2f), " + "was (%.2f)\n", + edge1-edges, edge1->fpos, edge1->opos / 64.0, blue->fit / 64.0, + edge1->pos / 64.0 )); + + edge1->pos = blue->fit; + edge1->flags |= AF_EDGE_DONE; + + if ( edge2 && !edge2->blue_edge ) + { + af_cjk_align_linked_edge( hints, dim, edge1, edge2 ); + edge2->flags |= AF_EDGE_DONE; + } + + if ( !anchor ) + anchor = edge; + } + } + + /* now we align all stem edges. */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + /* skip all non-stem edges */ + edge2 = edge->link; + if ( !edge2 ) + { + skipped++; + continue; + } + + /* Some CJK characters have so many stems that + * the hinter is likely to merge two adjacent ones. + * To solve this problem, if either edge of a stem + * is too close to the previous one, we avoid + * aligning the two edges, but rather interpolate + * their locations at the end of this function in + * order to preserve the space between the stems. + */ + if ( has_last_stem && + ( edge->pos < last_stem_pos + 64 || + edge2->pos < last_stem_pos + 64 ) ) + { + skipped++; + continue; + } + + /* now align the stem */ + /* this should not happen, but it's better to be safe */ + if ( edge2->blue_edge ) + { + FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges )); + + af_cjk_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + continue; + } + + if ( edge2 < edge ) + { + af_cjk_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + /* We rarely reaches here it seems; + * usually the two edges belonging + * to one stem are marked as DONE together + */ + has_last_stem = TRUE; + last_stem_pos = edge->pos; + continue; + } + + if ( dim != AF_DIMENSION_VERT && !anchor ) + { + +#if 0 + if ( fixedpitch ) + { + AF_Edge left = edge; + AF_Edge right = edge_limit - 1; + AF_EdgeRec left1, left2, right1, right2; + FT_Pos target, center1, center2; + FT_Pos delta1, delta2, d1, d2; + + + while ( right > left && !right->link ) + right--; + + left1 = *left; + left2 = *left->link; + right1 = *right->link; + right2 = *right; + + delta = ( ( ( hinter->pp2.x + 32 ) & -64 ) - hinter->pp2.x ) / 2; + target = left->opos + ( right->opos - left->opos ) / 2 + delta - 16; + + delta1 = delta; + delta1 += af_hint_normal_stem( hints, left, left->link, + delta1, 0 ); + + if ( left->link != right ) + af_hint_normal_stem( hints, right->link, right, delta1, 0 ); + + center1 = left->pos + ( right->pos - left->pos ) / 2; + + if ( center1 >= target ) + delta2 = delta - 32; + else + delta2 = delta + 32; + + delta2 += af_hint_normal_stem( hints, &left1, &left2, delta2, 0 ); + + if ( delta1 != delta2 ) + { + if ( left->link != right ) + af_hint_normal_stem( hints, &right1, &right2, delta2, 0 ); + + center2 = left1.pos + ( right2.pos - left1.pos ) / 2; + + d1 = center1 - target; + d2 = center2 - target; + + if ( FT_ABS( d2 ) < FT_ABS( d1 ) ) + { + left->pos = left1.pos; + left->link->pos = left2.pos; + + if ( left->link != right ) + { + right->link->pos = right1.pos; + right->pos = right2.pos; + } + + delta1 = delta2; + } + } + + delta = delta1; + right->link->flags |= AF_EDGE_DONE; + right->flags |= AF_EDGE_DONE; + } + else + +#endif /* 0 */ + + delta = af_hint_normal_stem( hints, edge, edge2, 0, + AF_DIMENSION_HORZ ); + } + else + af_hint_normal_stem( hints, edge, edge2, delta, dim ); + +#if 0 + printf( "stem (%d,%d) adjusted (%.1f,%.1f)\n", + edge - edges, edge2 - edges, + ( edge->pos - edge->opos ) / 64.0, + ( edge2->pos - edge2->opos ) / 64.0 ); +#endif + + anchor = edge; + edge->flags |= AF_EDGE_DONE; + edge2->flags |= AF_EDGE_DONE; + has_last_stem = TRUE; + last_stem_pos = edge2->pos; + } + + /* make sure that lowercase m's maintain their symmetry */ + + /* In general, lowercase m's have six vertical edges if they are sans */ + /* serif, or twelve if they are with serifs. This implementation is */ + /* based on that assumption, and seems to work very well with most */ + /* faces. However, if for a certain face this assumption is not */ + /* true, the m is just rendered like before. In addition, any stem */ + /* correction will only be applied to symmetrical glyphs (even if the */ + /* glyph is not an m), so the potential for unwanted distortion is */ + /* relatively low. */ + + /* We don't handle horizontal edges since we can't easily assure that */ + /* the third (lowest) stem aligns with the base line; it might end up */ + /* one pixel higher or lower. */ + + n_edges = edge_limit - edges; + if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) + { + AF_Edge edge1, edge2, edge3; + FT_Pos dist1, dist2, span; + + + if ( n_edges == 6 ) + { + edge1 = edges; + edge2 = edges + 2; + edge3 = edges + 4; + } + else + { + edge1 = edges + 1; + edge2 = edges + 5; + edge3 = edges + 9; + } + + dist1 = edge2->opos - edge1->opos; + dist2 = edge3->opos - edge2->opos; + + span = dist1 - dist2; + if ( span < 0 ) + span = -span; + + if ( edge1->link == edge1 + 1 && + edge2->link == edge2 + 1 && + edge3->link == edge3 + 1 && span < 8 ) + { + delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); + edge3->pos -= delta; + if ( edge3->link ) + edge3->link->pos -= delta; + + /* move the serifs along with the stem */ + if ( n_edges == 12 ) + { + ( edges + 8 )->pos -= delta; + ( edges + 11 )->pos -= delta; + } + + edge3->flags |= AF_EDGE_DONE; + if ( edge3->link ) + edge3->link->flags |= AF_EDGE_DONE; + } + } + + if ( !skipped ) + return; + + /* + * now hint the remaining edges (serifs and single) in order + * to complete our processing + */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + if ( edge->flags & AF_EDGE_DONE ) + continue; + + if ( edge->serif ) + { + af_cjk_align_serif_edge( hints, edge->serif, edge ); + edge->flags |= AF_EDGE_DONE; + skipped--; + } + } + + if ( !skipped ) + return; + + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge before, after; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + before = after = edge; + + while ( --before >= edges ) + if ( before->flags & AF_EDGE_DONE ) + break; + + while ( ++after < edge_limit ) + if ( after->flags & AF_EDGE_DONE ) + break; + + if ( before >= edges || after < edge_limit ) + { + if ( before < edges ) + af_cjk_align_serif_edge( hints, after, edge ); + else if ( after >= edge_limit ) + af_cjk_align_serif_edge( hints, before, edge ); + else + { + if ( after->fpos == before->fpos ) + edge->pos = before->pos; + else + edge->pos = before->pos + + FT_MulDiv( edge->fpos - before->fpos, + after->pos - before->pos, + after->fpos - before->fpos ); + } + } + } + } + + + static void + af_cjk_align_edge_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = & hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + FT_Bool snapping; + + + snapping = FT_BOOL( ( dim == AF_DIMENSION_HORZ && + AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) || + ( dim == AF_DIMENSION_VERT && + AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ); + + for ( edge = edges; edge < edge_limit; edge++ ) + { + /* move the points of each segment */ + /* in each edge to the edge's position */ + AF_Segment seg = edge->first; + + + if ( snapping ) + { + do + { + AF_Point point = seg->first; + + + for (;;) + { + if ( dim == AF_DIMENSION_HORZ ) + { + point->x = edge->pos; + point->flags |= AF_FLAG_TOUCH_X; + } + else + { + point->y = edge->pos; + point->flags |= AF_FLAG_TOUCH_Y; + } + + if ( point == seg->last ) + break; + + point = point->next; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + else + { + FT_Pos delta = edge->pos - edge->opos; + + + do + { + AF_Point point = seg->first; + + + for (;;) + { + if ( dim == AF_DIMENSION_HORZ ) + { + point->x += delta; + point->flags |= AF_FLAG_TOUCH_X; + } + else + { + point->y += delta; + point->flags |= AF_FLAG_TOUCH_Y; + } + + if ( point == seg->last ) + break; + + point = point->next; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_cjk_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_CJKMetrics metrics ) + { + FT_Error error; + int dim; + + FT_UNUSED( metrics ); + + + error = af_glyph_hints_reload( hints, outline ); + if ( error ) + goto Exit; + + /* analyze glyph outline */ + if ( AF_HINTS_DO_HORIZONTAL( hints ) ) + { + error = af_cjk_hints_detect_features( hints, AF_DIMENSION_HORZ ); + if ( error ) + goto Exit; + + af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_HORZ ); + } + + if ( AF_HINTS_DO_VERTICAL( hints ) ) + { + error = af_cjk_hints_detect_features( hints, AF_DIMENSION_VERT ); + if ( error ) + goto Exit; + + af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_VERT ); + } + + /* grid-fit the outline */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || + ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) + { + +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( dim == AF_DIMENSION_HORZ && + metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL ) + { + AF_WarperRec warper; + FT_Fixed scale; + FT_Pos delta; + + + af_warper_compute( &warper, hints, (AF_Dimension)dim, + &scale, &delta ); + af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, + scale, delta ); + continue; + } +#endif /* AF_CONFIG_OPTION_USE_WARPER */ + + af_cjk_hint_edges( hints, (AF_Dimension)dim ); + af_cjk_align_edge_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); + } + } + +#if 0 + af_glyph_hints_dump_points( hints ); + af_glyph_hints_dump_segments( hints ); + af_glyph_hints_dump_edges( hints ); +#endif + + af_glyph_hints_save( hints, outline ); + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* this corresponds to Unicode 6.0 */ + + static const AF_Script_UniRangeRec af_cjk_uniranges[] = + { + AF_UNIRANGE_REC( 0x2E80UL, 0x2EFFUL ), /* CJK Radicals Supplement */ + AF_UNIRANGE_REC( 0x2F00UL, 0x2FDFUL ), /* Kangxi Radicals */ + AF_UNIRANGE_REC( 0x2FF0UL, 0x2FFFUL ), /* Ideographic Description Characters */ + AF_UNIRANGE_REC( 0x3000UL, 0x303FUL ), /* CJK Symbols and Punctuation */ + AF_UNIRANGE_REC( 0x3040UL, 0x309FUL ), /* Hiragana */ + AF_UNIRANGE_REC( 0x30A0UL, 0x30FFUL ), /* Katakana */ + AF_UNIRANGE_REC( 0x3100UL, 0x312FUL ), /* Bopomofo */ + AF_UNIRANGE_REC( 0x3130UL, 0x318FUL ), /* Hangul Compatibility Jamo */ + AF_UNIRANGE_REC( 0x3190UL, 0x319FUL ), /* Kanbun */ + AF_UNIRANGE_REC( 0x31A0UL, 0x31BFUL ), /* Bopomofo Extended */ + AF_UNIRANGE_REC( 0x31C0UL, 0x31EFUL ), /* CJK Strokes */ + AF_UNIRANGE_REC( 0x31F0UL, 0x31FFUL ), /* Katakana Phonetic Extensions */ + AF_UNIRANGE_REC( 0x3200UL, 0x32FFUL ), /* Enclosed CJK Letters and Months */ + AF_UNIRANGE_REC( 0x3300UL, 0x33FFUL ), /* CJK Compatibility */ + AF_UNIRANGE_REC( 0x3400UL, 0x4DBFUL ), /* CJK Unified Ideographs Extension A */ + AF_UNIRANGE_REC( 0x4DC0UL, 0x4DFFUL ), /* Yijing Hexagram Symbols */ + AF_UNIRANGE_REC( 0x4E00UL, 0x9FFFUL ), /* CJK Unified Ideographs */ + AF_UNIRANGE_REC( 0xA960UL, 0xA97FUL ), /* Hangul Jamo Extended-A */ + AF_UNIRANGE_REC( 0xAC00UL, 0xD7AFUL ), /* Hangul Syllables */ + AF_UNIRANGE_REC( 0xD7B0UL, 0xD7FFUL ), /* Hangul Jamo Extended-B */ + AF_UNIRANGE_REC( 0xF900UL, 0xFAFFUL ), /* CJK Compatibility Ideographs */ + AF_UNIRANGE_REC( 0xFE10UL, 0xFE1FUL ), /* Vertical forms */ + AF_UNIRANGE_REC( 0xFE30UL, 0xFE4FUL ), /* CJK Compatibility Forms */ + AF_UNIRANGE_REC( 0xFF00UL, 0xFFEFUL ), /* Halfwidth and Fullwidth Forms */ + AF_UNIRANGE_REC( 0x1B000UL, 0x1B0FFUL ), /* Kana Supplement */ + AF_UNIRANGE_REC( 0x1D300UL, 0x1D35FUL ), /* Tai Xuan Hing Symbols */ + AF_UNIRANGE_REC( 0x1F200UL, 0x1F2FFUL ), /* Enclosed Ideographic Supplement */ + AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ), /* CJK Unified Ideographs Extension B */ + AF_UNIRANGE_REC( 0x2A700UL, 0x2B73FUL ), /* CJK Unified Ideographs Extension C */ + AF_UNIRANGE_REC( 0x2B740UL, 0x2B81FUL ), /* CJK Unified Ideographs Extension D */ + AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ), /* CJK Compatibility Ideographs Supplement */ + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class, + AF_SCRIPT_CJK, + af_cjk_uniranges, + + sizeof( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) af_cjk_metrics_init, + (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_cjk_hints_init, + (AF_Script_ApplyHintsFunc) af_cjk_hints_apply + ) + +#else /* !AF_CONFIG_OPTION_CJK */ + + static const AF_Script_UniRangeRec af_cjk_uniranges[] = + { + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class, + AF_SCRIPT_CJK, + af_cjk_uniranges, + + sizeof( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) NULL, + (AF_Script_ScaleMetricsFunc)NULL, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) NULL, + (AF_Script_ApplyHintsFunc) NULL + ) + +#endif /* !AF_CONFIG_OPTION_CJK */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afcjk.h b/uppsrc/plugin/FT_fontsys/src/autofit/afcjk.h new file mode 100644 index 000000000..8416c0d02 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afcjk.h @@ -0,0 +1,141 @@ +/***************************************************************************/ +/* */ +/* afcjk.h */ +/* */ +/* Auto-fitter hinting routines for CJK script (specification). */ +/* */ +/* Copyright 2006, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFCJK_H__ +#define __AFCJK_H__ + +#include "afhints.h" +#include "aflatin.h" + + +FT_BEGIN_HEADER + + + /* the CJK-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class) + + /* CJK (global) metrics management */ + + /* + * CJK glyphs tend to fill the square. So we have both vertical and + * horizontal blue zones. But some glyphs have flat bounding strokes that + * leave some space between neighbour glyphs. + */ + enum + { + AF_CJK_BLUE_TOP, + AF_CJK_BLUE_BOTTOM, + AF_CJK_BLUE_LEFT, + AF_CJK_BLUE_RIGHT, + + AF_CJK_BLUE_MAX + }; + + +#define AF_CJK_MAX_WIDTHS 16 +#define AF_CJK_MAX_BLUES AF_CJK_BLUE_MAX + + + enum + { + AF_CJK_BLUE_ACTIVE = 1 << 0, + AF_CJK_BLUE_IS_TOP = 1 << 1, + AF_CJK_BLUE_IS_RIGHT = 1 << 2, + AF_CJK_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */ + /* optimization */ + AF_CJK_BLUE_FLAG_MAX + }; + + + typedef struct AF_CJKBlueRec_ + { + AF_WidthRec ref; + AF_WidthRec shoot; /* undershoot */ + FT_UInt flags; + + } AF_CJKBlueRec, *AF_CJKBlue; + + + typedef struct AF_CJKAxisRec_ + { + FT_Fixed scale; + FT_Pos delta; + + FT_UInt width_count; + AF_WidthRec widths[AF_CJK_MAX_WIDTHS]; + FT_Pos edge_distance_threshold; + FT_Pos standard_width; + FT_Bool extra_light; + + /* used for horizontal metrics too for CJK */ + FT_Bool control_overshoot; + FT_UInt blue_count; + AF_CJKBlueRec blues[AF_CJK_BLUE_MAX]; + + FT_Fixed org_scale; + FT_Pos org_delta; + + } AF_CJKAxisRec, *AF_CJKAxis; + + + typedef struct AF_CJKMetricsRec_ + { + AF_ScriptMetricsRec root; + FT_UInt units_per_em; + AF_CJKAxisRec axis[AF_DIMENSION_MAX]; + + } AF_CJKMetricsRec, *AF_CJKMetrics; + + + FT_LOCAL( FT_Error ) + af_cjk_metrics_init( AF_CJKMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_cjk_metrics_scale( AF_CJKMetrics metrics, + AF_Scaler scaler ); + + FT_LOCAL( FT_Error ) + af_cjk_hints_init( AF_GlyphHints hints, + AF_CJKMetrics metrics ); + + FT_LOCAL( FT_Error ) + af_cjk_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_CJKMetrics metrics ); + + /* Shared. called from afindic.c */ + FT_LOCAL( void ) + af_cjk_metrics_check_digits( AF_CJKMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_cjk_metrics_init_widths( AF_CJKMetrics metrics, + FT_Face face, + FT_ULong charcode ); + + +/* */ + +FT_END_HEADER + +#endif /* __AFCJK_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afdummy.c b/uppsrc/plugin/FT_fontsys/src/autofit/afdummy.c new file mode 100644 index 000000000..c71265131 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afdummy.c @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* afdummy.c */ +/* */ +/* Auto-fitter dummy routines to be used if no hinting should be */ +/* performed (body). */ +/* */ +/* Copyright 2003-2005, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afdummy.h" +#include "afhints.h" +#include "aferrors.h" + + + static FT_Error + af_dummy_hints_init( AF_GlyphHints hints, + AF_ScriptMetrics metrics ) + { + af_glyph_hints_rescale( hints, + metrics ); + return AF_Err_Ok; + } + + + static FT_Error + af_dummy_hints_apply( AF_GlyphHints hints, + FT_Outline* outline ) + { + FT_UNUSED( hints ); + FT_UNUSED( outline ); + + return AF_Err_Ok; + } + + + AF_DEFINE_SCRIPT_CLASS( af_dummy_script_class, + AF_SCRIPT_NONE, + NULL, + + sizeof( AF_ScriptMetricsRec ), + + (AF_Script_InitMetricsFunc) NULL, + (AF_Script_ScaleMetricsFunc)NULL, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_dummy_hints_init, + (AF_Script_ApplyHintsFunc) af_dummy_hints_apply + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afdummy.h b/uppsrc/plugin/FT_fontsys/src/autofit/afdummy.h new file mode 100644 index 000000000..95d8f8cf1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afdummy.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* afdummy.h */ +/* */ +/* Auto-fitter dummy routines to be used if no hinting should be */ +/* performed (specification). */ +/* */ +/* Copyright 2003-2005, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFDUMMY_H__ +#define __AFDUMMY_H__ + +#include "aftypes.h" + + +FT_BEGIN_HEADER + + /* A dummy script metrics class used when no hinting should + * be performed. This is the default for non-latin glyphs! + */ + + AF_DECLARE_SCRIPT_CLASS( af_dummy_script_class ) + +/* */ + +FT_END_HEADER + + +#endif /* __AFDUMMY_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/aferrors.h b/uppsrc/plugin/FT_fontsys/src/autofit/aferrors.h new file mode 100644 index 000000000..c2ed5fe2a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/aferrors.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* aferrors.h */ +/* */ +/* Autofitter error codes (specification only). */ +/* */ +/* Copyright 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Autofitter error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __AFERRORS_H__ +#define __AFERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX AF_Err_ +#define FT_ERR_BASE FT_Mod_Err_Autofit + +#include FT_ERRORS_H + +#endif /* __AFERRORS_H__ */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afglobal.c b/uppsrc/plugin/FT_fontsys/src/autofit/afglobal.c new file mode 100644 index 000000000..3c5f02ec6 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afglobal.c @@ -0,0 +1,319 @@ +/***************************************************************************/ +/* */ +/* afglobal.c */ +/* */ +/* Auto-fitter routines to compute global hinting values (body). */ +/* */ +/* Copyright 2003-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afglobal.h" +#include "afdummy.h" +#include "aflatin.h" +#include "afcjk.h" +#include "afindic.h" +#include "afpic.h" + +#include "aferrors.h" + +#ifdef FT_OPTION_AUTOFIT2 +#include "aflatin2.h" +#endif + +#ifndef FT_CONFIG_OPTION_PIC + + /* when updating this table, don't forget to update */ + /* AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */ + + /* populate this list when you add new scripts */ + static AF_ScriptClass const af_script_classes[] = + { + &af_dummy_script_class, +#ifdef FT_OPTION_AUTOFIT2 + &af_latin2_script_class, +#endif + &af_latin_script_class, + &af_cjk_script_class, + &af_indic_script_class, + NULL /* do not remove */ + }; + +#endif /* !FT_CONFIG_OPTION_PIC */ + + /* index of default script in `af_script_classes' */ +#define AF_SCRIPT_LIST_DEFAULT 2 + /* a bit mask indicating an uncovered glyph */ +#define AF_SCRIPT_LIST_NONE 0x7F + /* if this flag is set, we have an ASCII digit */ +#define AF_DIGIT 0x80 + + + /* + * Note that glyph_scripts[] is used to map each glyph into + * an index into the `af_script_classes' array. + * + */ + typedef struct AF_FaceGlobalsRec_ + { + FT_Face face; + FT_Long glyph_count; /* same as face->num_glyphs */ + FT_Byte* glyph_scripts; + + AF_ScriptMetrics metrics[AF_SCRIPT_MAX]; + + } AF_FaceGlobalsRec; + + + /* Compute the script index of each glyph within a given face. */ + + static FT_Error + af_face_globals_compute_script_coverage( AF_FaceGlobals globals ) + { + FT_Error error = AF_Err_Ok; + FT_Face face = globals->face; + FT_CharMap old_charmap = face->charmap; + FT_Byte* gscripts = globals->glyph_scripts; + FT_UInt ss, i; + + + /* the value AF_SCRIPT_LIST_NONE means `uncovered glyph' */ + FT_MEM_SET( globals->glyph_scripts, + AF_SCRIPT_LIST_NONE, + globals->glyph_count ); + + error = FT_Select_Charmap( face, FT_ENCODING_UNICODE ); + if ( error ) + { + /* + * Ignore this error; we simply use the default script. + * XXX: Shouldn't we rather disable hinting? + */ + error = AF_Err_Ok; + goto Exit; + } + + /* scan each script in a Unicode charmap */ + for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ ) + { + AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss]; + AF_Script_UniRange range; + + + if ( clazz->script_uni_ranges == NULL ) + continue; + + /* + * Scan all unicode points in the range and set the corresponding + * glyph script index. + */ + for ( range = clazz->script_uni_ranges; range->first != 0; range++ ) + { + FT_ULong charcode = range->first; + FT_UInt gindex; + + + gindex = FT_Get_Char_Index( face, charcode ); + + if ( gindex != 0 && + gindex < (FT_ULong)globals->glyph_count && + gscripts[gindex] == AF_SCRIPT_LIST_NONE ) + gscripts[gindex] = (FT_Byte)ss; + + for (;;) + { + charcode = FT_Get_Next_Char( face, charcode, &gindex ); + + if ( gindex == 0 || charcode > range->last ) + break; + + if ( gindex < (FT_ULong)globals->glyph_count && + gscripts[gindex] == AF_SCRIPT_LIST_NONE ) + gscripts[gindex] = (FT_Byte)ss; + } + } + } + + /* mark ASCII digits */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt gindex = FT_Get_Char_Index( face, i ); + + + if ( gindex != 0 && gindex < (FT_ULong)globals->glyph_count ) + gscripts[gindex] |= AF_DIGIT; + } + + Exit: + /* + * By default, all uncovered glyphs are set to the latin script. + * XXX: Shouldn't we disable hinting or do something similar? + */ + { + FT_Long nn; + + + for ( nn = 0; nn < globals->glyph_count; nn++ ) + { + if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_LIST_NONE ) + { + gscripts[nn] &= ~AF_SCRIPT_LIST_NONE; + gscripts[nn] |= AF_SCRIPT_LIST_DEFAULT; + } + } + } + + FT_Set_Charmap( face, old_charmap ); + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + af_face_globals_new( FT_Face face, + AF_FaceGlobals *aglobals ) + { + FT_Error error; + FT_Memory memory; + AF_FaceGlobals globals = NULL; + + + memory = face->memory; + + if ( !FT_ALLOC( globals, sizeof ( *globals ) + + face->num_glyphs * sizeof ( FT_Byte ) ) ) + { + globals->face = face; + globals->glyph_count = face->num_glyphs; + globals->glyph_scripts = (FT_Byte*)( globals + 1 ); + + error = af_face_globals_compute_script_coverage( globals ); + if ( error ) + { + af_face_globals_free( globals ); + globals = NULL; + } + } + + *aglobals = globals; + return error; + } + + + FT_LOCAL_DEF( void ) + af_face_globals_free( AF_FaceGlobals globals ) + { + if ( globals ) + { + FT_Memory memory = globals->face->memory; + FT_UInt nn; + + + for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ ) + { + if ( globals->metrics[nn] ) + { + AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn]; + + + FT_ASSERT( globals->metrics[nn]->clazz == clazz ); + + if ( clazz->script_metrics_done ) + clazz->script_metrics_done( globals->metrics[nn] ); + + FT_FREE( globals->metrics[nn] ); + } + } + + globals->glyph_count = 0; + globals->glyph_scripts = NULL; /* no need to free this one! */ + globals->face = NULL; + + FT_FREE( globals ); + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_face_globals_get_metrics( AF_FaceGlobals globals, + FT_UInt gindex, + FT_UInt options, + AF_ScriptMetrics *ametrics ) + { + AF_ScriptMetrics metrics = NULL; + FT_UInt gidx; + AF_ScriptClass clazz; + FT_UInt script = options & 15; + const FT_Offset script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) / + sizeof ( AF_SCRIPT_CLASSES_GET[0] ); + FT_Error error = AF_Err_Ok; + + + if ( gindex >= (FT_ULong)globals->glyph_count ) + { + error = AF_Err_Invalid_Argument; + goto Exit; + } + + gidx = script; + if ( gidx == 0 || gidx + 1 >= script_max ) + gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_LIST_NONE; + + clazz = AF_SCRIPT_CLASSES_GET[gidx]; + if ( script == 0 ) + script = clazz->script; + + metrics = globals->metrics[clazz->script]; + if ( metrics == NULL ) + { + /* create the global metrics object when needed */ + FT_Memory memory = globals->face->memory; + + + if ( FT_ALLOC( metrics, clazz->script_metrics_size ) ) + goto Exit; + + metrics->clazz = clazz; + + if ( clazz->script_metrics_init ) + { + error = clazz->script_metrics_init( metrics, globals->face ); + if ( error ) + { + if ( clazz->script_metrics_done ) + clazz->script_metrics_done( metrics ); + + FT_FREE( metrics ); + goto Exit; + } + } + + globals->metrics[clazz->script] = metrics; + } + + Exit: + *ametrics = metrics; + + return error; + } + + + FT_LOCAL_DEF( FT_Bool ) + af_face_globals_is_digit( AF_FaceGlobals globals, + FT_UInt gindex ) + { + if ( gindex < (FT_ULong)globals->glyph_count ) + return (FT_Bool)( globals->glyph_scripts[gindex] & AF_DIGIT ); + + return (FT_Bool)0; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afglobal.h b/uppsrc/plugin/FT_fontsys/src/autofit/afglobal.h new file mode 100644 index 000000000..cc6860b26 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afglobal.h @@ -0,0 +1,71 @@ +/***************************************************************************/ +/* */ +/* afglobal.h */ +/* */ +/* Auto-fitter routines to compute global hinting values */ +/* (specification). */ +/* */ +/* Copyright 2003-2005, 2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFGLOBAL_H__ +#define __AFGLOBAL_H__ + + +#include "aftypes.h" + + +FT_BEGIN_HEADER + + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** F A C E G L O B A L S *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + + + /* + * model the global hints data for a given face, decomposed into + * script-specific items + */ + typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals; + + + FT_LOCAL( FT_Error ) + af_face_globals_new( FT_Face face, + AF_FaceGlobals *aglobals ); + + FT_LOCAL( FT_Error ) + af_face_globals_get_metrics( AF_FaceGlobals globals, + FT_UInt gindex, + FT_UInt options, + AF_ScriptMetrics *ametrics ); + + FT_LOCAL( void ) + af_face_globals_free( AF_FaceGlobals globals ); + + FT_LOCAL_DEF( FT_Bool ) + af_face_globals_is_digit( AF_FaceGlobals globals, + FT_UInt gindex ); + + /* */ + + +FT_END_HEADER + +#endif /* __AFGLOBAL_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afhints.c b/uppsrc/plugin/FT_fontsys/src/autofit/afhints.c new file mode 100644 index 000000000..f51066f02 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afhints.c @@ -0,0 +1,1299 @@ +/***************************************************************************/ +/* */ +/* afhints.c */ +/* */ +/* Auto-fitter hinting routines (body). */ +/* */ +/* Copyright 2003-2007, 2009-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afhints.h" +#include "aferrors.h" +#include FT_INTERNAL_CALC_H + + + /* Get new segment for given axis. */ + + FT_LOCAL_DEF( FT_Error ) + af_axis_hints_new_segment( AF_AxisHints axis, + FT_Memory memory, + AF_Segment *asegment ) + { + FT_Error error = AF_Err_Ok; + AF_Segment segment = NULL; + + + if ( axis->num_segments >= axis->max_segments ) + { + FT_Int old_max = axis->max_segments; + FT_Int new_max = old_max; + FT_Int big_max = (FT_Int)( FT_INT_MAX / sizeof ( *segment ) ); + + + if ( old_max >= big_max ) + { + error = AF_Err_Out_Of_Memory; + goto Exit; + } + + new_max += ( new_max >> 2 ) + 4; + if ( new_max < old_max || new_max > big_max ) + new_max = big_max; + + if ( FT_RENEW_ARRAY( axis->segments, old_max, new_max ) ) + goto Exit; + + axis->max_segments = new_max; + } + + segment = axis->segments + axis->num_segments++; + + Exit: + *asegment = segment; + return error; + } + + + /* Get new edge for given axis, direction, and position. */ + + FT_LOCAL( FT_Error ) + af_axis_hints_new_edge( AF_AxisHints axis, + FT_Int fpos, + AF_Direction dir, + FT_Memory memory, + AF_Edge *aedge ) + { + FT_Error error = AF_Err_Ok; + AF_Edge edge = NULL; + AF_Edge edges; + + + if ( axis->num_edges >= axis->max_edges ) + { + FT_Int old_max = axis->max_edges; + FT_Int new_max = old_max; + FT_Int big_max = (FT_Int)( FT_INT_MAX / sizeof ( *edge ) ); + + + if ( old_max >= big_max ) + { + error = AF_Err_Out_Of_Memory; + goto Exit; + } + + new_max += ( new_max >> 2 ) + 4; + if ( new_max < old_max || new_max > big_max ) + new_max = big_max; + + if ( FT_RENEW_ARRAY( axis->edges, old_max, new_max ) ) + goto Exit; + + axis->max_edges = new_max; + } + + edges = axis->edges; + edge = edges + axis->num_edges; + + while ( edge > edges ) + { + if ( edge[-1].fpos < fpos ) + break; + + /* we want the edge with same position and minor direction */ + /* to appear before those in the major one in the list */ + if ( edge[-1].fpos == fpos && dir == axis->major_dir ) + break; + + edge[0] = edge[-1]; + edge--; + } + + axis->num_edges++; + + FT_ZERO( edge ); + edge->fpos = (FT_Short)fpos; + edge->dir = (FT_Char)dir; + + Exit: + *aedge = edge; + return error; + } + + +#ifdef FT_DEBUG_AUTOFIT + +#include FT_CONFIG_STANDARD_LIBRARY_H + + static const char* + af_dir_str( AF_Direction dir ) + { + const char* result; + + + switch ( dir ) + { + case AF_DIR_UP: + result = "up"; + break; + case AF_DIR_DOWN: + result = "down"; + break; + case AF_DIR_LEFT: + result = "left"; + break; + case AF_DIR_RIGHT: + result = "right"; + break; + default: + result = "none"; + } + + return result; + } + + +#define AF_INDEX_NUM( ptr, base ) ( (ptr) ? ( (ptr) - (base) ) : -1 ) + + +#ifdef __cplusplus + extern "C" { +#endif + void + af_glyph_hints_dump_points( AF_GlyphHints hints ) + { + AF_Point points = hints->points; + AF_Point limit = points + hints->num_points; + AF_Point point; + + + printf( "Table of points:\n" ); + printf( " [ index | xorg | yorg | xscale | yscale" + " | xfit | yfit | flags ]\n" ); + + for ( point = points; point < limit; point++ ) + { + printf( " [ %5d | %5d | %5d | %6.2f | %6.2f" + " | %5.2f | %5.2f | %c%c%c%c%c%c ]\n", + point - points, + point->fx, + point->fy, + point->ox / 64.0, + point->oy / 64.0, + point->x / 64.0, + point->y / 64.0, + ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ', + ( point->flags & AF_FLAG_INFLECTION ) ? 'i' : ' ', + ( point->flags & AF_FLAG_EXTREMA_X ) ? '<' : ' ', + ( point->flags & AF_FLAG_EXTREMA_Y ) ? 'v' : ' ', + ( point->flags & AF_FLAG_ROUND_X ) ? '(' : ' ', + ( point->flags & AF_FLAG_ROUND_Y ) ? 'u' : ' '); + } + printf( "\n" ); + } +#ifdef __cplusplus + } +#endif + + + static const char* + af_edge_flags_to_string( AF_Edge_Flags flags ) + { + static char temp[32]; + int pos = 0; + + + if ( flags & AF_EDGE_ROUND ) + { + ft_memcpy( temp + pos, "round", 5 ); + pos += 5; + } + if ( flags & AF_EDGE_SERIF ) + { + if ( pos > 0 ) + temp[pos++] = ' '; + ft_memcpy( temp + pos, "serif", 5 ); + pos += 5; + } + if ( pos == 0 ) + return "normal"; + + temp[pos] = 0; + + return temp; + } + + + /* Dump the array of linked segments. */ + +#ifdef __cplusplus + extern "C" { +#endif + void + af_glyph_hints_dump_segments( AF_GlyphHints hints ) + { + FT_Int dimension; + + + for ( dimension = 1; dimension >= 0; dimension-- ) + { + AF_AxisHints axis = &hints->axis[dimension]; + AF_Segment segments = axis->segments; + AF_Segment limit = segments + axis->num_segments; + AF_Segment seg; + + + printf ( "Table of %s segments:\n", + dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ); + printf ( " [ index | pos | dir | link | serif |" + " height | extra | flags ]\n" ); + + for ( seg = segments; seg < limit; seg++ ) + { + printf ( " [ %5d | %5.2g | %5s | %4d | %5d | %6d | %5d | %11s ]\n", + seg - segments, + dimension == AF_DIMENSION_HORZ ? (int)seg->first->ox / 64.0 + : (int)seg->first->oy / 64.0, + af_dir_str( (AF_Direction)seg->dir ), + AF_INDEX_NUM( seg->link, segments ), + AF_INDEX_NUM( seg->serif, segments ), + seg->height, + seg->height - ( seg->max_coord - seg->min_coord ), + af_edge_flags_to_string( (AF_Edge_Flags)seg->flags ) ); + } + printf( "\n" ); + } + } +#ifdef __cplusplus + } +#endif + + + /* Fetch number of segments. */ + +#ifdef __cplusplus + extern "C" { +#endif + FT_Error + af_glyph_hints_get_num_segments( AF_GlyphHints hints, + FT_Int dimension, + FT_Int* num_segments ) + { + AF_Dimension dim; + AF_AxisHints axis; + + + dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT; + + axis = &hints->axis[dim]; + *num_segments = axis->num_segments; + + return AF_Err_Ok; + } +#ifdef __cplusplus + } +#endif + + + /* Fetch offset of segments into user supplied offset array. */ + +#ifdef __cplusplus + extern "C" { +#endif + FT_Error + af_glyph_hints_get_segment_offset( AF_GlyphHints hints, + FT_Int dimension, + FT_Int idx, + FT_Pos* offset ) + { + AF_Dimension dim; + AF_AxisHints axis; + AF_Segment seg; + + + if ( !offset ) + return AF_Err_Invalid_Argument; + + dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT; + + axis = &hints->axis[dim]; + + if ( idx < 0 || idx >= axis->num_segments ) + return AF_Err_Invalid_Argument; + + seg = &axis->segments[idx]; + *offset = (dim == AF_DIMENSION_HORZ) ? seg->first->ox + : seg->first->oy; + + return AF_Err_Ok; + } +#ifdef __cplusplus + } +#endif + + + /* Dump the array of linked edges. */ + +#ifdef __cplusplus + extern "C" { +#endif + void + af_glyph_hints_dump_edges( AF_GlyphHints hints ) + { + FT_Int dimension; + + + for ( dimension = 1; dimension >= 0; dimension-- ) + { + AF_AxisHints axis = &hints->axis[dimension]; + AF_Edge edges = axis->edges; + AF_Edge limit = edges + axis->num_edges; + AF_Edge edge; + + + /* + * note: AF_DIMENSION_HORZ corresponds to _vertical_ edges + * since they have a constant X coordinate. + */ + printf ( "Table of %s edges:\n", + dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ); + printf ( " [ index | pos | dir | link |" + " serif | blue | opos | pos | flags ]\n" ); + + for ( edge = edges; edge < limit; edge++ ) + { + printf ( " [ %5d | %5.2g | %5s | %4d |" + " %5d | %c | %5.2f | %5.2f | %11s ]\n", + edge - edges, + (int)edge->opos / 64.0, + af_dir_str( (AF_Direction)edge->dir ), + AF_INDEX_NUM( edge->link, edges ), + AF_INDEX_NUM( edge->serif, edges ), + edge->blue_edge ? 'y' : 'n', + edge->opos / 64.0, + edge->pos / 64.0, + af_edge_flags_to_string( (AF_Edge_Flags)edge->flags ) ); + } + printf( "\n" ); + } + } +#ifdef __cplusplus + } +#endif + +#else /* !FT_DEBUG_AUTOFIT */ + + /* these empty stubs are only used to link the `ftgrid' test program */ + /* if debugging is disabled */ + +#ifdef __cplusplus + extern "C" { +#endif + + void + af_glyph_hints_dump_points( AF_GlyphHints hints ) + { + FT_UNUSED( hints ); + } + + + void + af_glyph_hints_dump_segments( AF_GlyphHints hints ) + { + FT_UNUSED( hints ); + } + + + FT_Error + af_glyph_hints_get_num_segments( AF_GlyphHints hints, + FT_Int dimension, + FT_Int* num_segments ) + { + FT_UNUSED( hints ); + FT_UNUSED( dimension ); + FT_UNUSED( num_segments ); + + return 0; + } + + + FT_Error + af_glyph_hints_get_segment_offset( AF_GlyphHints hints, + FT_Int dimension, + FT_Int idx, + FT_Pos* offset ) + { + FT_UNUSED( hints ); + FT_UNUSED( dimension ); + FT_UNUSED( idx ); + FT_UNUSED( offset ); + + return 0; + } + + + void + af_glyph_hints_dump_edges( AF_GlyphHints hints ) + { + FT_UNUSED( hints ); + } + +#ifdef __cplusplus + } +#endif + +#endif /* !FT_DEBUG_AUTOFIT */ + + + /* Compute the direction value of a given vector. */ + + FT_LOCAL_DEF( AF_Direction ) + af_direction_compute( FT_Pos dx, + FT_Pos dy ) + { + FT_Pos ll, ss; /* long and short arm lengths */ + AF_Direction dir; /* candidate direction */ + + + if ( dy >= dx ) + { + if ( dy >= -dx ) + { + dir = AF_DIR_UP; + ll = dy; + ss = dx; + } + else + { + dir = AF_DIR_LEFT; + ll = -dx; + ss = dy; + } + } + else /* dy < dx */ + { + if ( dy >= -dx ) + { + dir = AF_DIR_RIGHT; + ll = dx; + ss = dy; + } + else + { + dir = AF_DIR_DOWN; + ll = dy; + ss = dx; + } + } + + /* return no direction if arm lengths differ too much */ + /* (value 14 is heuristic) */ + ss *= 14; + if ( FT_ABS( ll ) <= FT_ABS( ss ) ) + dir = AF_DIR_NONE; + + return dir; + } + + + FT_LOCAL_DEF( void ) + af_glyph_hints_init( AF_GlyphHints hints, + FT_Memory memory ) + { + FT_ZERO( hints ); + hints->memory = memory; + } + + + FT_LOCAL_DEF( void ) + af_glyph_hints_done( AF_GlyphHints hints ) + { + if ( hints && hints->memory ) + { + FT_Memory memory = hints->memory; + int dim; + + + /* + * note that we don't need to free the segment and edge + * buffers since they are really within the hints->points array + */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_AxisHints axis = &hints->axis[dim]; + + + axis->num_segments = 0; + axis->max_segments = 0; + FT_FREE( axis->segments ); + + axis->num_edges = 0; + axis->max_edges = 0; + FT_FREE( axis->edges ); + } + + FT_FREE( hints->contours ); + hints->max_contours = 0; + hints->num_contours = 0; + + FT_FREE( hints->points ); + hints->num_points = 0; + hints->max_points = 0; + + hints->memory = NULL; + } + } + + + /* Reset metrics. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_rescale( AF_GlyphHints hints, + AF_ScriptMetrics metrics ) + { + hints->metrics = metrics; + hints->scaler_flags = metrics->scaler.flags; + } + + + /* Recompute all AF_Point in AF_GlyphHints from the definitions */ + /* in a source outline. */ + + FT_LOCAL_DEF( FT_Error ) + af_glyph_hints_reload( AF_GlyphHints hints, + FT_Outline* outline ) + { + FT_Error error = AF_Err_Ok; + AF_Point points; + FT_UInt old_max, new_max; + FT_Fixed x_scale = hints->x_scale; + FT_Fixed y_scale = hints->y_scale; + FT_Pos x_delta = hints->x_delta; + FT_Pos y_delta = hints->y_delta; + FT_Memory memory = hints->memory; + + + hints->num_points = 0; + hints->num_contours = 0; + + hints->axis[0].num_segments = 0; + hints->axis[0].num_edges = 0; + hints->axis[1].num_segments = 0; + hints->axis[1].num_edges = 0; + + /* first of all, reallocate the contours array if necessary */ + new_max = (FT_UInt)outline->n_contours; + old_max = hints->max_contours; + if ( new_max > old_max ) + { + new_max = ( new_max + 3 ) & ~3; /* round up to a multiple of 4 */ + + if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) ) + goto Exit; + + hints->max_contours = new_max; + } + + /* + * then reallocate the points arrays if necessary -- + * note that we reserve two additional point positions, used to + * hint metrics appropriately + */ + new_max = (FT_UInt)( outline->n_points + 2 ); + old_max = hints->max_points; + if ( new_max > old_max ) + { + new_max = ( new_max + 2 + 7 ) & ~7; /* round up to a multiple of 8 */ + + if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) ) + goto Exit; + + hints->max_points = new_max; + } + + hints->num_points = outline->n_points; + hints->num_contours = outline->n_contours; + + /* We can't rely on the value of `FT_Outline.flags' to know the fill */ + /* direction used for a glyph, given that some fonts are broken (e.g., */ + /* the Arphic ones). We thus recompute it each time we need to. */ + /* */ + hints->axis[AF_DIMENSION_HORZ].major_dir = AF_DIR_UP; + hints->axis[AF_DIMENSION_VERT].major_dir = AF_DIR_LEFT; + + if ( FT_Outline_Get_Orientation( outline ) == FT_ORIENTATION_POSTSCRIPT ) + { + hints->axis[AF_DIMENSION_HORZ].major_dir = AF_DIR_DOWN; + hints->axis[AF_DIMENSION_VERT].major_dir = AF_DIR_RIGHT; + } + + hints->x_scale = x_scale; + hints->y_scale = y_scale; + hints->x_delta = x_delta; + hints->y_delta = y_delta; + + hints->xmin_delta = 0; + hints->xmax_delta = 0; + + points = hints->points; + if ( hints->num_points == 0 ) + goto Exit; + + { + AF_Point point; + AF_Point point_limit = points + hints->num_points; + + + /* compute coordinates & Bezier flags, next and prev */ + { + FT_Vector* vec = outline->points; + char* tag = outline->tags; + AF_Point end = points + outline->contours[0]; + AF_Point prev = end; + FT_Int contour_index = 0; + + + for ( point = points; point < point_limit; point++, vec++, tag++ ) + { + point->fx = (FT_Short)vec->x; + point->fy = (FT_Short)vec->y; + point->ox = point->x = FT_MulFix( vec->x, x_scale ) + x_delta; + point->oy = point->y = FT_MulFix( vec->y, y_scale ) + y_delta; + + switch ( FT_CURVE_TAG( *tag ) ) + { + case FT_CURVE_TAG_CONIC: + point->flags = AF_FLAG_CONIC; + break; + case FT_CURVE_TAG_CUBIC: + point->flags = AF_FLAG_CUBIC; + break; + default: + point->flags = AF_FLAG_NONE; + } + + point->prev = prev; + prev->next = point; + prev = point; + + if ( point == end ) + { + if ( ++contour_index < outline->n_contours ) + { + end = points + outline->contours[contour_index]; + prev = end; + } + } + } + } + + /* set up the contours array */ + { + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + short* end = outline->contours; + short idx = 0; + + + for ( ; contour < contour_limit; contour++, end++ ) + { + contour[0] = points + idx; + idx = (short)( end[0] + 1 ); + } + } + + /* compute directions of in & out vectors */ + { + AF_Point first = points; + AF_Point prev = NULL; + FT_Pos in_x = 0; + FT_Pos in_y = 0; + AF_Direction in_dir = AF_DIR_NONE; + + + for ( point = points; point < point_limit; point++ ) + { + AF_Point next; + FT_Pos out_x, out_y; + + + if ( point == first ) + { + prev = first->prev; + in_x = first->fx - prev->fx; + in_y = first->fy - prev->fy; + in_dir = af_direction_compute( in_x, in_y ); + first = prev + 1; + } + + point->in_dir = (FT_Char)in_dir; + + next = point->next; + out_x = next->fx - point->fx; + out_y = next->fy - point->fy; + + in_dir = af_direction_compute( out_x, out_y ); + point->out_dir = (FT_Char)in_dir; + + /* check for weak points */ + + if ( point->flags & ( AF_FLAG_CONIC | AF_FLAG_CUBIC ) ) + { + Is_Weak_Point: + point->flags |= AF_FLAG_WEAK_INTERPOLATION; + } + else if ( point->out_dir == point->in_dir ) + { + if ( point->out_dir != AF_DIR_NONE ) + goto Is_Weak_Point; + + if ( ft_corner_is_flat( in_x, in_y, out_x, out_y ) ) + goto Is_Weak_Point; + } + else if ( point->in_dir == -point->out_dir ) + goto Is_Weak_Point; + + in_x = out_x; + in_y = out_y; + prev = point; + } + } + } + + Exit: + return error; + } + + + /* Store the hinted outline in an FT_Outline structure. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_save( AF_GlyphHints hints, + FT_Outline* outline ) + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + FT_Vector* vec = outline->points; + char* tag = outline->tags; + + + for ( ; point < limit; point++, vec++, tag++ ) + { + vec->x = point->x; + vec->y = point->y; + + if ( point->flags & AF_FLAG_CONIC ) + tag[0] = FT_CURVE_TAG_CONIC; + else if ( point->flags & AF_FLAG_CUBIC ) + tag[0] = FT_CURVE_TAG_CUBIC; + else + tag[0] = FT_CURVE_TAG_ON; + } + } + + + /**************************************************************** + * + * EDGE POINT GRID-FITTING + * + ****************************************************************/ + + + /* Align all points of an edge to the same coordinate value, */ + /* either horizontally or vertically. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_align_edge_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = & hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + + + if ( dim == AF_DIMENSION_HORZ ) + { + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge edge = seg->edge; + AF_Point point, first, last; + + + if ( edge == NULL ) + continue; + + first = seg->first; + last = seg->last; + point = first; + for (;;) + { + point->x = edge->pos; + point->flags |= AF_FLAG_TOUCH_X; + + if ( point == last ) + break; + + point = point->next; + } + } + } + else + { + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge edge = seg->edge; + AF_Point point, first, last; + + + if ( edge == NULL ) + continue; + + first = seg->first; + last = seg->last; + point = first; + for (;;) + { + point->y = edge->pos; + point->flags |= AF_FLAG_TOUCH_Y; + + if ( point == last ) + break; + + point = point->next; + } + } + } + } + + + /**************************************************************** + * + * STRONG POINT INTERPOLATION + * + ****************************************************************/ + + + /* Hint the strong points -- this is equivalent to the TrueType `IP' */ + /* hinting instruction. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_align_strong_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_Point points = hints->points; + AF_Point point_limit = points + hints->num_points; + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Flags touch_flag; + + + if ( dim == AF_DIMENSION_HORZ ) + touch_flag = AF_FLAG_TOUCH_X; + else + touch_flag = AF_FLAG_TOUCH_Y; + + if ( edges < edge_limit ) + { + AF_Point point; + AF_Edge edge; + + + for ( point = points; point < point_limit; point++ ) + { + FT_Pos u, ou, fu; /* point position */ + FT_Pos delta; + + + if ( point->flags & touch_flag ) + continue; + + /* if this point is candidate to weak interpolation, we */ + /* interpolate it after all strong points have been processed */ + + if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) && + !( point->flags & AF_FLAG_INFLECTION ) ) + continue; + + if ( dim == AF_DIMENSION_VERT ) + { + u = point->fy; + ou = point->oy; + } + else + { + u = point->fx; + ou = point->ox; + } + + fu = u; + + /* is the point before the first edge? */ + edge = edges; + delta = edge->fpos - u; + if ( delta >= 0 ) + { + u = edge->pos - ( edge->opos - ou ); + goto Store_Point; + } + + /* is the point after the last edge? */ + edge = edge_limit - 1; + delta = u - edge->fpos; + if ( delta >= 0 ) + { + u = edge->pos + ( ou - edge->opos ); + goto Store_Point; + } + + { + FT_PtrDist min, max, mid; + FT_Pos fpos; + + + /* find enclosing edges */ + min = 0; + max = edge_limit - edges; + +#if 1 + /* for a small number of edges, a linear search is better */ + if ( max <= 8 ) + { + FT_PtrDist nn; + + + for ( nn = 0; nn < max; nn++ ) + if ( edges[nn].fpos >= u ) + break; + + if ( edges[nn].fpos == u ) + { + u = edges[nn].pos; + goto Store_Point; + } + min = nn; + } + else +#endif + while ( min < max ) + { + mid = ( max + min ) >> 1; + edge = edges + mid; + fpos = edge->fpos; + + if ( u < fpos ) + max = mid; + else if ( u > fpos ) + min = mid + 1; + else + { + /* we are on the edge */ + u = edge->pos; + goto Store_Point; + } + } + + /* point is not on an edge */ + { + AF_Edge before = edges + min - 1; + AF_Edge after = edges + min + 0; + + + /* assert( before && after && before != after ) */ + if ( before->scale == 0 ) + before->scale = FT_DivFix( after->pos - before->pos, + after->fpos - before->fpos ); + + u = before->pos + FT_MulFix( fu - before->fpos, + before->scale ); + } + } + + Store_Point: + /* save the point position */ + if ( dim == AF_DIMENSION_HORZ ) + point->x = u; + else + point->y = u; + + point->flags |= touch_flag; + } + } + } + + + /**************************************************************** + * + * WEAK POINT INTERPOLATION + * + ****************************************************************/ + + + /* Shift the original coordinates of all points between `p1' and */ + /* `p2' to get hinted coordinates, using the same difference as */ + /* given by `ref'. */ + + static void + af_iup_shift( AF_Point p1, + AF_Point p2, + AF_Point ref ) + { + AF_Point p; + FT_Pos delta = ref->u - ref->v; + + + if ( delta == 0 ) + return; + + for ( p = p1; p < ref; p++ ) + p->u = p->v + delta; + + for ( p = ref + 1; p <= p2; p++ ) + p->u = p->v + delta; + } + + + /* Interpolate the original coordinates of all points between `p1' and */ + /* `p2' to get hinted coordinates, using `ref1' and `ref2' as the */ + /* reference points. The `u' and `v' members are the current and */ + /* original coordinate values, respectively. */ + /* */ + /* Details can be found in the TrueType bytecode specification. */ + + static void + af_iup_interp( AF_Point p1, + AF_Point p2, + AF_Point ref1, + AF_Point ref2 ) + { + AF_Point p; + FT_Pos u; + FT_Pos v1 = ref1->v; + FT_Pos v2 = ref2->v; + FT_Pos d1 = ref1->u - v1; + FT_Pos d2 = ref2->u - v2; + + + if ( p1 > p2 ) + return; + + if ( v1 == v2 ) + { + for ( p = p1; p <= p2; p++ ) + { + u = p->v; + + if ( u <= v1 ) + u += d1; + else + u += d2; + + p->u = u; + } + return; + } + + if ( v1 < v2 ) + { + for ( p = p1; p <= p2; p++ ) + { + u = p->v; + + if ( u <= v1 ) + u += d1; + else if ( u >= v2 ) + u += d2; + else + u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 ); + + p->u = u; + } + } + else + { + for ( p = p1; p <= p2; p++ ) + { + u = p->v; + + if ( u <= v2 ) + u += d2; + else if ( u >= v1 ) + u += d1; + else + u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 ); + + p->u = u; + } + } + } + + + /* Hint the weak points -- this is equivalent to the TrueType `IUP' */ + /* hinting instruction. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_align_weak_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_Point points = hints->points; + AF_Point point_limit = points + hints->num_points; + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + AF_Flags touch_flag; + AF_Point point; + AF_Point end_point; + AF_Point first_point; + + + /* PASS 1: Move segment points to edge positions */ + + if ( dim == AF_DIMENSION_HORZ ) + { + touch_flag = AF_FLAG_TOUCH_X; + + for ( point = points; point < point_limit; point++ ) + { + point->u = point->x; + point->v = point->ox; + } + } + else + { + touch_flag = AF_FLAG_TOUCH_Y; + + for ( point = points; point < point_limit; point++ ) + { + point->u = point->y; + point->v = point->oy; + } + } + + point = points; + + for ( ; contour < contour_limit; contour++ ) + { + AF_Point first_touched, last_touched; + + + point = *contour; + end_point = point->prev; + first_point = point; + + /* find first touched point */ + for (;;) + { + if ( point > end_point ) /* no touched point in contour */ + goto NextContour; + + if ( point->flags & touch_flag ) + break; + + point++; + } + + first_touched = point; + last_touched = point; + + for (;;) + { + FT_ASSERT( point <= end_point && + ( point->flags & touch_flag ) != 0 ); + + /* skip any touched neighbours */ + while ( point < end_point && + ( point[1].flags & touch_flag ) != 0 ) + point++; + + last_touched = point; + + /* find the next touched point, if any */ + point++; + for (;;) + { + if ( point > end_point ) + goto EndContour; + + if ( ( point->flags & touch_flag ) != 0 ) + break; + + point++; + } + + /* interpolate between last_touched and point */ + af_iup_interp( last_touched + 1, point - 1, + last_touched, point ); + } + + EndContour: + /* special case: only one point was touched */ + if ( last_touched == first_touched ) + af_iup_shift( first_point, end_point, first_touched ); + + else /* interpolate the last part */ + { + if ( last_touched < end_point ) + af_iup_interp( last_touched + 1, end_point, + last_touched, first_touched ); + + if ( first_touched > points ) + af_iup_interp( first_point, first_touched - 1, + last_touched, first_touched ); + } + + NextContour: + ; + } + + /* now save the interpolated values back to x/y */ + if ( dim == AF_DIMENSION_HORZ ) + { + for ( point = points; point < point_limit; point++ ) + point->x = point->u; + } + else + { + for ( point = points; point < point_limit; point++ ) + point->y = point->u; + } + } + + +#ifdef AF_CONFIG_OPTION_USE_WARPER + + /* Apply (small) warp scale and warp delta for given dimension. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_scale_dim( AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed scale, + FT_Pos delta ) + { + AF_Point points = hints->points; + AF_Point points_limit = points + hints->num_points; + AF_Point point; + + + if ( dim == AF_DIMENSION_HORZ ) + { + for ( point = points; point < points_limit; point++ ) + point->x = FT_MulFix( point->fx, scale ) + delta; + } + else + { + for ( point = points; point < points_limit; point++ ) + point->y = FT_MulFix( point->fy, scale ) + delta; + } + } + +#endif /* AF_CONFIG_OPTION_USE_WARPER */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afhints.h b/uppsrc/plugin/FT_fontsys/src/autofit/afhints.h new file mode 100644 index 000000000..1c52e0de7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afhints.h @@ -0,0 +1,467 @@ +/***************************************************************************/ +/* */ +/* afhints.h */ +/* */ +/* Auto-fitter hinting routines (specification). */ +/* */ +/* Copyright 2003-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFHINTS_H__ +#define __AFHINTS_H__ + +#include "aftypes.h" + +#define xxAF_SORT_SEGMENTS + +FT_BEGIN_HEADER + + /* + * The definition of outline glyph hints. These are shared by all + * script analysis routines (until now). + */ + + typedef enum AF_Dimension_ + { + AF_DIMENSION_HORZ = 0, /* x coordinates, */ + /* i.e., vertical segments & edges */ + AF_DIMENSION_VERT = 1, /* y coordinates, */ + /* i.e., horizontal segments & edges */ + + AF_DIMENSION_MAX /* do not remove */ + + } AF_Dimension; + + + /* hint directions -- the values are computed so that two vectors are */ + /* in opposite directions iff `dir1 + dir2 == 0' */ + typedef enum AF_Direction_ + { + AF_DIR_NONE = 4, + AF_DIR_RIGHT = 1, + AF_DIR_LEFT = -1, + AF_DIR_UP = 2, + AF_DIR_DOWN = -2 + + } AF_Direction; + + + /* + * The following explanations are mostly taken from the article + * + * Real-Time Grid Fitting of Typographic Outlines + * + * by David Turner and Werner Lemberg + * + * http://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf + * + * + * Segments + * + * `af_{cjk,latin,...}_hints_compute_segments' are the functions to + * find segments in an outline. A segment is a series of consecutive + * points that are approximately aligned along a coordinate axis. The + * analysis to do so is specific to a script. + * + * A segment must have at least two points, except in the case of + * `fake' segments that are generated to hint metrics appropriately, + * and which consist of a single point. + * + * + * Edges + * + * As soon as segments are defined, the auto-hinter groups them into + * edges. An edge corresponds to a single position on the main + * dimension that collects one or more segments (allowing for a small + * threshold). + * + * The auto-hinter first tries to grid fit edges, then to align + * segments on the edges unless it detects that they form a serif. + * + * `af_{cjk,latin,...}_hints_compute_edges' are the functions to find + * edges; they are specific to a script. + * + * + * A H + * | | + * | | + * | | + * | | + * C | | F + * +------<-----+ +-----<------+ + * | B G | + * | | + * | | + * +--------------->------------------+ + * D E + * + * + * Stems + * + * Segments need to be `linked' to other ones in order to detect stems. + * A stem is made of two segments that face each other in opposite + * directions and that are sufficiently close to each other. Using + * vocabulary from the TrueType specification, stem segments form a + * `black distance'. + * + * In the above ASCII drawing, the horizontal segments are BC, DE, and + * FG; the vertical segments are AB, CD, EF, and GH. + * + * Each segment has at most one `best' candidate to form a black + * distance, or no candidate at all. Notice that two distinct segments + * can have the same candidate, which frequently means a serif. + * + * A stem is recognized by the following condition: + * + * best segment_1 = segment_2 && best segment_2 = segment_1 + * + * The best candidate is stored in field `link' in structure + * `AF_Segment'. + * + * Stems are detected by `af_{cjk,latin,...}_hint_edges'. + * + * In the above ASCII drawing, the best candidate for both AB and CD is + * GH, while the best candidate for GH is AB. Similarly, the best + * candidate for EF and GH is AB, while the best candidate for AB is + * GH. + * + * + * Serifs + * + * On the opposite, a serif has + * + * best segment_1 = segment_2 && best segment_2 != segment_1 + * + * where segment_1 corresponds to the serif segment (CD and EF in the + * above ASCII drawing). + * + * The best candidate is stored in field `serif' in structure + * `AF_Segment' (and `link' is set to NULL). + * + * Serifs are detected by `af_{cjk,latin,...}_hint_edges'. + * + * + * Touched points + * + * A point is called `touched' if it has been processed somehow by the + * auto-hinter. It basically means that it shouldn't be moved again + * (or moved only under certain constraints to preserve the already + * applied processing). + * + * + * Flat and round segments + * + * Segments are `round' or `flat', depending on the series of points + * that define them. A segment is round if the next and previous point + * of an extremum (which can be either a single point or sequence of + * points) are both conic or cubic control points. Otherwise, a + * segment with an extremum is flat. + * + * + * Strong Points + * + * Experience has shown that points which are not part of an edge need + * to be interpolated linearly between their two closest edges, even if + * these are not part of the contour of those particular points. + * Typical candidates for this are + * + * - angle points (i.e., points where the `in' and `out' direction + * differ greatly) + * + * - inflection points (i.e., where the `in' and `out' angles are the + * same, but the curvature changes sign) + * + * `af_glyph_hints_align_strong_points' is the function which takes + * care of such situations; it is equivalent to the TrueType `IP' + * hinting instruction. + * + * + * Weak Points + * + * Other points in the outline must be interpolated using the + * coordinates of their previous and next unfitted contour neighbours. + * These are called `weak points' and are touched by the function + * `af_glyph_hints_align_weak_points', equivalent to the TrueType `IUP' + * hinting instruction. Typical candidates are control points and + * points on the contour without a major direction. + * + * The major effect is to reduce possible distortion caused by + * alignment of edges and strong points, thus weak points are processed + * after strong points. + */ + + + /* point hint flags */ + typedef enum AF_Flags_ + { + AF_FLAG_NONE = 0, + + /* point type flags */ + AF_FLAG_CONIC = 1 << 0, + AF_FLAG_CUBIC = 1 << 1, + AF_FLAG_CONTROL = AF_FLAG_CONIC | AF_FLAG_CUBIC, + + /* point extremum flags */ + AF_FLAG_EXTREMA_X = 1 << 2, + AF_FLAG_EXTREMA_Y = 1 << 3, + + /* point roundness flags */ + AF_FLAG_ROUND_X = 1 << 4, + AF_FLAG_ROUND_Y = 1 << 5, + + /* point touch flags */ + AF_FLAG_TOUCH_X = 1 << 6, + AF_FLAG_TOUCH_Y = 1 << 7, + + /* candidates for weak interpolation have this flag set */ + AF_FLAG_WEAK_INTERPOLATION = 1 << 8, + + /* all inflection points in the outline have this flag set */ + AF_FLAG_INFLECTION = 1 << 9 + + } AF_Flags; + + + /* edge hint flags */ + typedef enum AF_Edge_Flags_ + { + AF_EDGE_NORMAL = 0, + AF_EDGE_ROUND = 1 << 0, + AF_EDGE_SERIF = 1 << 1, + AF_EDGE_DONE = 1 << 2 + + } AF_Edge_Flags; + + + typedef struct AF_PointRec_* AF_Point; + typedef struct AF_SegmentRec_* AF_Segment; + typedef struct AF_EdgeRec_* AF_Edge; + + + typedef struct AF_PointRec_ + { + FT_UShort flags; /* point flags used by hinter */ + FT_Char in_dir; /* direction of inwards vector */ + FT_Char out_dir; /* direction of outwards vector */ + + FT_Pos ox, oy; /* original, scaled position */ + FT_Short fx, fy; /* original, unscaled position (font units) */ + FT_Pos x, y; /* current position */ + FT_Pos u, v; /* current (x,y) or (y,x) depending on context */ + + AF_Point next; /* next point in contour */ + AF_Point prev; /* previous point in contour */ + + } AF_PointRec; + + + typedef struct AF_SegmentRec_ + { + FT_Byte flags; /* edge/segment flags for this segment */ + FT_Char dir; /* segment direction */ + FT_Short pos; /* position of segment */ + FT_Short min_coord; /* minimum coordinate of segment */ + FT_Short max_coord; /* maximum coordinate of segment */ + FT_Short height; /* the hinted segment height */ + + AF_Edge edge; /* the segment's parent edge */ + AF_Segment edge_next; /* link to next segment in parent edge */ + + AF_Segment link; /* (stem) link segment */ + AF_Segment serif; /* primary segment for serifs */ + FT_Pos num_linked; /* number of linked segments */ + FT_Pos score; /* used during stem matching */ + FT_Pos len; /* used during stem matching */ + + AF_Point first; /* first point in edge segment */ + AF_Point last; /* last point in edge segment */ + + } AF_SegmentRec; + + + typedef struct AF_EdgeRec_ + { + FT_Short fpos; /* original, unscaled position (font units) */ + FT_Pos opos; /* original, scaled position */ + FT_Pos pos; /* current position */ + + FT_Byte flags; /* edge flags */ + FT_Char dir; /* edge direction */ + FT_Fixed scale; /* used to speed up interpolation between edges */ + AF_Width blue_edge; /* non-NULL if this is a blue edge */ + + AF_Edge link; /* link edge */ + AF_Edge serif; /* primary edge for serifs */ + FT_Short num_linked; /* number of linked edges */ + FT_Int score; /* used during stem matching */ + + AF_Segment first; /* first segment in edge */ + AF_Segment last; /* last segment in edge */ + + } AF_EdgeRec; + + + typedef struct AF_AxisHintsRec_ + { + FT_Int num_segments; /* number of used segments */ + FT_Int max_segments; /* number of allocated segments */ + AF_Segment segments; /* segments array */ +#ifdef AF_SORT_SEGMENTS + FT_Int mid_segments; +#endif + + FT_Int num_edges; /* number of used edges */ + FT_Int max_edges; /* number of allocated edges */ + AF_Edge edges; /* edges array */ + + AF_Direction major_dir; /* either vertical or horizontal */ + + } AF_AxisHintsRec, *AF_AxisHints; + + + typedef struct AF_GlyphHintsRec_ + { + FT_Memory memory; + + FT_Fixed x_scale; + FT_Pos x_delta; + + FT_Fixed y_scale; + FT_Pos y_delta; + + FT_Int max_points; /* number of allocated points */ + FT_Int num_points; /* number of used points */ + AF_Point points; /* points array */ + + FT_Int max_contours; /* number of allocated contours */ + FT_Int num_contours; /* number of used contours */ + AF_Point* contours; /* contours array */ + + AF_AxisHintsRec axis[AF_DIMENSION_MAX]; + + FT_UInt32 scaler_flags; /* copy of scaler flags */ + FT_UInt32 other_flags; /* free for script-specific */ + /* implementations */ + AF_ScriptMetrics metrics; + + FT_Pos xmin_delta; /* used for warping */ + FT_Pos xmax_delta; + + } AF_GlyphHintsRec; + + +#define AF_HINTS_TEST_SCALER( h, f ) ( (h)->scaler_flags & (f) ) +#define AF_HINTS_TEST_OTHER( h, f ) ( (h)->other_flags & (f) ) + + +#ifdef FT_DEBUG_AUTOFIT + +#define AF_HINTS_DO_HORIZONTAL( h ) \ + ( !_af_debug_disable_horz_hints && \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL ) ) + +#define AF_HINTS_DO_VERTICAL( h ) \ + ( !_af_debug_disable_vert_hints && \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL ) ) + +#define AF_HINTS_DO_ADVANCE( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE ) + +#define AF_HINTS_DO_BLUES( h ) ( !_af_debug_disable_blue_hints ) + +#else /* !FT_DEBUG_AUTOFIT */ + +#define AF_HINTS_DO_HORIZONTAL( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL ) + +#define AF_HINTS_DO_VERTICAL( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL ) + +#define AF_HINTS_DO_ADVANCE( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE ) + +#define AF_HINTS_DO_BLUES( h ) 1 + +#endif /* !FT_DEBUG_AUTOFIT */ + + + FT_LOCAL( AF_Direction ) + af_direction_compute( FT_Pos dx, + FT_Pos dy ); + + + FT_LOCAL( FT_Error ) + af_axis_hints_new_segment( AF_AxisHints axis, + FT_Memory memory, + AF_Segment *asegment ); + + FT_LOCAL( FT_Error) + af_axis_hints_new_edge( AF_AxisHints axis, + FT_Int fpos, + AF_Direction dir, + FT_Memory memory, + AF_Edge *edge ); + + FT_LOCAL( void ) + af_glyph_hints_init( AF_GlyphHints hints, + FT_Memory memory ); + + FT_LOCAL( void ) + af_glyph_hints_rescale( AF_GlyphHints hints, + AF_ScriptMetrics metrics ); + + FT_LOCAL( FT_Error ) + af_glyph_hints_reload( AF_GlyphHints hints, + FT_Outline* outline ); + + FT_LOCAL( void ) + af_glyph_hints_save( AF_GlyphHints hints, + FT_Outline* outline ); + + FT_LOCAL( void ) + af_glyph_hints_align_edge_points( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( void ) + af_glyph_hints_align_strong_points( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( void ) + af_glyph_hints_align_weak_points( AF_GlyphHints hints, + AF_Dimension dim ); + +#ifdef AF_CONFIG_OPTION_USE_WARPER + FT_LOCAL( void ) + af_glyph_hints_scale_dim( AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed scale, + FT_Pos delta ); +#endif + + FT_LOCAL( void ) + af_glyph_hints_done( AF_GlyphHints hints ); + +/* */ + +#define AF_SEGMENT_LEN( seg ) ( (seg)->max_coord - (seg)->min_coord ) + +#define AF_SEGMENT_DIST( seg1, seg2 ) ( ( (seg1)->pos > (seg2)->pos ) \ + ? (seg1)->pos - (seg2)->pos \ + : (seg2)->pos - (seg1)->pos ) + + +FT_END_HEADER + +#endif /* __AFHINTS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afindic.c b/uppsrc/plugin/FT_fontsys/src/autofit/afindic.c new file mode 100644 index 000000000..c232cff78 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afindic.c @@ -0,0 +1,155 @@ +/***************************************************************************/ +/* */ +/* afindic.c */ +/* */ +/* Auto-fitter hinting routines for Indic scripts (body). */ +/* */ +/* Copyright 2007, 2011 by */ +/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "aftypes.h" +#include "aflatin.h" + + +#ifdef AF_CONFIG_OPTION_INDIC + +#include "afindic.h" +#include "aferrors.h" +#include "afcjk.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + static FT_Error + af_indic_metrics_init( AF_CJKMetrics metrics, + FT_Face face ) + { + /* skip blue zone init in CJK routines */ + FT_CharMap oldmap = face->charmap; + + + metrics->units_per_em = face->units_per_EM; + + if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) + face->charmap = NULL; + else + { + af_cjk_metrics_init_widths( metrics, face, 0x7530 ); +#if 0 + /* either need indic specific blue_chars[] or just skip blue zones */ + af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars ); +#endif + af_cjk_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + + return AF_Err_Ok; + } + + + static void + af_indic_metrics_scale( AF_CJKMetrics metrics, + AF_Scaler scaler ) + { + /* use CJK routines */ + af_cjk_metrics_scale( metrics, scaler ); + } + + + static FT_Error + af_indic_hints_init( AF_GlyphHints hints, + AF_CJKMetrics metrics ) + { + /* use CJK routines */ + return af_cjk_hints_init( hints, metrics ); + } + + + static FT_Error + af_indic_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_CJKMetrics metrics ) + { + /* use CJK routines */ + return af_cjk_hints_apply( hints, outline, metrics ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** I N D I C S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static const AF_Script_UniRangeRec af_indic_uniranges[] = + { +#if 0 + AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ), /* why this? */ +#endif + AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL), /* Indic Range */ + AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL), /* Tibetan */ + AF_UNIRANGE_REC( 0x1900UL, 0x194FUL), /* Limbu */ + AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL), /* Sundanese */ + AF_UNIRANGE_REC( 0x1C80UL, 0x1CDFUL), /* Meetei Mayak */ + AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL), /* Syloti Nagri */ + AF_UNIRANGE_REC( 0x11800UL, 0x118DFUL), /* Sharada */ + AF_UNIRANGE_REC( 0UL, 0UL) + }; + + + AF_DEFINE_SCRIPT_CLASS(af_indic_script_class, + AF_SCRIPT_INDIC, + af_indic_uniranges, + + sizeof( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) af_indic_metrics_init, + (AF_Script_ScaleMetricsFunc)af_indic_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_indic_hints_init, + (AF_Script_ApplyHintsFunc) af_indic_hints_apply + ) + +#else /* !AF_CONFIG_OPTION_INDIC */ + + static const AF_Script_UniRangeRec af_indic_uniranges[] = + { + { 0, 0 } + }; + + + AF_DEFINE_SCRIPT_CLASS(af_indic_script_class, + AF_SCRIPT_INDIC, + af_indic_uniranges, + + sizeof( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) NULL, + (AF_Script_ScaleMetricsFunc)NULL, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) NULL, + (AF_Script_ApplyHintsFunc) NULL + ) + +#endif /* !AF_CONFIG_OPTION_INDIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afindic.h b/uppsrc/plugin/FT_fontsys/src/autofit/afindic.h new file mode 100644 index 000000000..662a98220 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afindic.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* afindic.h */ +/* */ +/* Auto-fitter hinting routines for Indic scripts (specification). */ +/* */ +/* Copyright 2007 by */ +/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFINDIC_H__ +#define __AFINDIC_H__ + +#include "afhints.h" + + +FT_BEGIN_HEADER + + + /* the Indic-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_indic_script_class) + + +/* */ + +FT_END_HEADER + +#endif /* __AFINDIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/aflatin.c b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin.c new file mode 100644 index 000000000..7bf662062 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin.c @@ -0,0 +1,2359 @@ +/***************************************************************************/ +/* */ +/* aflatin.c */ +/* */ +/* Auto-fitter hinting routines for latin script (body). */ +/* */ +/* Copyright 2003-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_ADVANCES_H +#include FT_INTERNAL_DEBUG_H + +#include "aflatin.h" +#include "aferrors.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_aflatin + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Find segments and links, compute all stem widths, and initialize */ + /* standard width and height for the glyph with given charcode. */ + + FT_LOCAL_DEF( void ) + af_latin_metrics_init_widths( AF_LatinMetrics metrics, + FT_Face face, + FT_ULong charcode ) + { + /* scan the array of segments in each direction */ + AF_GlyphHintsRec hints[1]; + + + af_glyph_hints_init( hints, face->memory ); + + metrics->axis[AF_DIMENSION_HORZ].width_count = 0; + metrics->axis[AF_DIMENSION_VERT].width_count = 0; + + { + FT_Error error; + FT_UInt glyph_index; + int dim; + AF_LatinMetricsRec dummy[1]; + AF_Scaler scaler = &dummy->root.scaler; + + + glyph_index = FT_Get_Char_Index( face, charcode ); + if ( glyph_index == 0 ) + goto Exit; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || face->glyph->outline.n_points <= 0 ) + goto Exit; + + FT_ZERO( dummy ); + + dummy->units_per_em = metrics->units_per_em; + + scaler->x_scale = 0x10000L; + scaler->y_scale = 0x10000L; + scaler->x_delta = 0; + scaler->y_delta = 0; + + scaler->face = face; + scaler->render_mode = FT_RENDER_MODE_NORMAL; + scaler->flags = 0; + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); + + error = af_glyph_hints_reload( hints, &face->glyph->outline ); + if ( error ) + goto Exit; + + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + AF_AxisHints axhints = &hints->axis[dim]; + AF_Segment seg, limit, link; + FT_UInt num_widths = 0; + + + error = af_latin_hints_compute_segments( hints, + (AF_Dimension)dim ); + if ( error ) + goto Exit; + + af_latin_hints_link_segments( hints, + (AF_Dimension)dim ); + + seg = axhints->segments; + limit = seg + axhints->num_segments; + + for ( ; seg < limit; seg++ ) + { + link = seg->link; + + /* we only consider stem segments there! */ + if ( link && link->link == seg && link > seg ) + { + FT_Pos dist; + + + dist = seg->pos - link->pos; + if ( dist < 0 ) + dist = -dist; + + if ( num_widths < AF_LATIN_MAX_WIDTHS ) + axis->widths[num_widths++].org = dist; + } + } + + af_sort_widths( num_widths, axis->widths ); + axis->width_count = num_widths; + } + + Exit: + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + FT_Pos stdw; + + + stdw = ( axis->width_count > 0 ) + ? axis->widths[0].org + : AF_LATIN_CONSTANT( metrics, 50 ); + + /* let's try 20% of the smallest width */ + axis->edge_distance_threshold = stdw / 5; + axis->standard_width = stdw; + axis->extra_light = 0; + } + } + + af_glyph_hints_done( hints ); + } + + + +#define AF_LATIN_MAX_TEST_CHARACTERS 12 + + + static const char af_latin_blue_chars[AF_LATIN_MAX_BLUES] + [AF_LATIN_MAX_TEST_CHARACTERS + 1] = + { + "THEZOCQS", + "HEZLOCUS", + "fijkdbh", + "xzroesc", + "xzroesc", + "pqgjy" + }; + + + /* Find all blue zones. Flat segments give the reference points, */ + /* round segments the overshoot positions. */ + + static void + af_latin_metrics_init_blues( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Int num_flats; + FT_Int num_rounds; + FT_Int bb; + AF_LatinBlue blue; + FT_Error error; + AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT]; + FT_GlyphSlot glyph = face->glyph; + + + /* we compute the blues simply by loading each character from the */ + /* `af_latin_blue_chars[blues]' string, then finding its top-most or */ + /* bottom-most points (depending on `AF_IS_TOP_BLUE') */ + + FT_TRACE5(( "blue zones computation\n" )); + FT_TRACE5(( "------------------------------------------------\n" )); + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + const char* p = af_latin_blue_chars[bb]; + const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS; + FT_Pos* blue_ref; + FT_Pos* blue_shoot; + + + FT_TRACE5(( "blue %3d: ", bb )); + + num_flats = 0; + num_rounds = 0; + + for ( ; p < limit && *p; p++ ) + { + FT_UInt glyph_index; + FT_Pos best_y; /* same as points.y */ + FT_Int best_point, best_first, best_last; + FT_Vector* points; + FT_Bool round = 0; + + + FT_TRACE5(( "'%c'", *p )); + + /* load the character in the face -- skip unknown or empty ones */ + glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p ); + if ( glyph_index == 0 ) + continue; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || glyph->outline.n_points <= 0 ) + continue; + + /* now compute min or max point indices and coordinates */ + points = glyph->outline.points; + best_point = -1; + best_y = 0; /* make compiler happy */ + best_first = 0; /* ditto */ + best_last = 0; /* ditto */ + + { + FT_Int nn; + FT_Int first = 0; + FT_Int last = -1; + + + for ( nn = 0; + nn < glyph->outline.n_contours; + first = last + 1, nn++ ) + { + FT_Int old_best_point = best_point; + FT_Int pp; + + + last = glyph->outline.contours[nn]; + + /* Avoid single-point contours since they are never rasterized. */ + /* In some fonts, they correspond to mark attachment points */ + /* which are way outside of the glyph's real outline. */ + if ( last <= first ) + continue; + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y > best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + else + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y < best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + + if ( best_point != old_best_point ) + { + best_first = first; + best_last = last; + } + } + FT_TRACE5(( "%5d", best_y )); + } + + /* now check whether the point belongs to a straight or round */ + /* segment; we first need to find in which contour the extremum */ + /* lies, then inspect its previous and next points */ + if ( best_point >= 0 ) + { + FT_Int prev, next; + FT_Pos dist; + + + /* now look for the previous and next points that are not on the */ + /* same Y coordinate. Threshold the `closeness'... */ + prev = best_point; + next = prev; + + do + { + if ( prev > best_first ) + prev--; + else + prev = best_last; + + dist = points[prev].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + } while ( prev != best_point ); + + do + { + if ( next < best_last ) + next++; + else + next = best_first; + + dist = points[next].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + } while ( next != best_point ); + + /* now set the `round' flag depending on the segment's kind */ + round = FT_BOOL( + FT_CURVE_TAG( glyph->outline.tags[prev] ) != FT_CURVE_TAG_ON || + FT_CURVE_TAG( glyph->outline.tags[next] ) != FT_CURVE_TAG_ON ); + + FT_TRACE5(( "%c ", round ? 'r' : 'f' )); + } + + if ( round ) + rounds[num_rounds++] = best_y; + else + flats[num_flats++] = best_y; + } + + FT_TRACE5(( "\n" )); + + if ( num_flats == 0 && num_rounds == 0 ) + { + /* + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then + */ + FT_TRACE5(( "empty\n" )); + continue; + } + + /* we have computed the contents of the `rounds' and `flats' tables, */ + /* now determine the reference and overshoot position of the blue -- */ + /* we simply take the median value after a simple sort */ + af_sort_pos( num_rounds, rounds ); + af_sort_pos( num_flats, flats ); + + blue = &axis->blues[axis->blue_count]; + blue_ref = &blue->ref.org; + blue_shoot = &blue->shoot.org; + + axis->blue_count++; + + if ( num_flats == 0 ) + { + *blue_ref = + *blue_shoot = rounds[num_rounds / 2]; + } + else if ( num_rounds == 0 ) + { + *blue_ref = + *blue_shoot = flats[num_flats / 2]; + } + else + { + *blue_ref = flats[num_flats / 2]; + *blue_shoot = rounds[num_rounds / 2]; + } + + /* there are sometimes problems: if the overshoot position of top */ + /* zones is under its reference position, or the opposite for bottom */ + /* zones. We must thus check everything there and correct the errors */ + if ( *blue_shoot != *blue_ref ) + { + FT_Pos ref = *blue_ref; + FT_Pos shoot = *blue_shoot; + FT_Bool over_ref = FT_BOOL( shoot > ref ); + + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref ) + *blue_ref = + *blue_shoot = ( shoot + ref ) / 2; + } + + blue->flags = 0; + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + blue->flags |= AF_LATIN_BLUE_TOP; + + /* + * The following flag is used later to adjust the y and x scales + * in order to optimize the pixel grid alignment of the top of small + * letters. + */ + if ( bb == AF_LATIN_BLUE_SMALL_TOP ) + blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; + + FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot )); + } + + FT_TRACE5(( "\n" )); + + return; + } + + + /* Check whether all ASCII digits have the same advance width. */ + + FT_LOCAL_DEF( void ) + af_latin_metrics_check_digits( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_UInt i; + FT_Bool started = 0, same_width = 1; + FT_Fixed advance, old_advance = 0; + + + /* digit `0' is 0x30 in all supported charmaps */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt glyph_index; + + + glyph_index = FT_Get_Char_Index( face, i ); + if ( glyph_index == 0 ) + continue; + + if ( FT_Get_Advance( face, glyph_index, + FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_IGNORE_TRANSFORM, + &advance ) ) + continue; + + if ( started ) + { + if ( advance != old_advance ) + { + same_width = 0; + break; + } + } + else + { + old_advance = advance; + started = 1; + } + } + + metrics->root.digits_have_same_width = same_width; + } + + + /* Initialize global metrics. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_metrics_init( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Error error = AF_Err_Ok; + FT_CharMap oldmap = face->charmap; + FT_UInt ee; + + static const FT_Encoding latin_encodings[] = + { + FT_ENCODING_UNICODE, + FT_ENCODING_APPLE_ROMAN, + FT_ENCODING_ADOBE_STANDARD, + FT_ENCODING_ADOBE_LATIN_1, + + FT_ENCODING_NONE /* end of list */ + }; + + + metrics->units_per_em = face->units_per_EM; + + /* do we have a latin charmap in there? */ + for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ ) + { + error = FT_Select_Charmap( face, latin_encodings[ee] ); + if ( !error ) + break; + } + + if ( !error ) + { + /* For now, compute the standard width and height from the `o'. */ + af_latin_metrics_init_widths( metrics, face, 'o' ); + af_latin_metrics_init_blues( metrics, face ); + af_latin_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + return AF_Err_Ok; + } + + + /* Adjust scaling value, then scale and shift widths */ + /* and blue zones (if applicable) for given dimension. */ + + static void + af_latin_metrics_scale_dim( AF_LatinMetrics metrics, + AF_Scaler scaler, + AF_Dimension dim ) + { + FT_Fixed scale; + FT_Pos delta; + AF_LatinAxis axis; + FT_UInt nn; + + + if ( dim == AF_DIMENSION_HORZ ) + { + scale = scaler->x_scale; + delta = scaler->x_delta; + } + else + { + scale = scaler->y_scale; + delta = scaler->y_delta; + } + + axis = &metrics->axis[dim]; + + if ( axis->org_scale == scale && axis->org_delta == delta ) + return; + + axis->org_scale = scale; + axis->org_delta = delta; + + /* + * correct X and Y scale to optimize the alignment of the top of small + * letters to the pixel grid + */ + { + AF_LatinAxis Axis = &metrics->axis[AF_DIMENSION_VERT]; + AF_LatinBlue blue = NULL; + + + for ( nn = 0; nn < Axis->blue_count; nn++ ) + { + if ( Axis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT ) + { + blue = &Axis->blues[nn]; + break; + } + } + + if ( blue ) + { + FT_Pos scaled = FT_MulFix( blue->shoot.org, scaler->y_scale ); + FT_Pos fitted = ( scaled + 40 ) & ~63; + + + if ( scaled != fitted ) + { +#if 0 + if ( dim == AF_DIMENSION_HORZ ) + { + if ( fitted < scaled ) + scale -= scale / 50; /* scale *= 0.98 */ + } + else +#endif + if ( dim == AF_DIMENSION_VERT ) + scale = FT_MulDiv( scale, fitted, scaled ); + } + } + } + + axis->scale = scale; + axis->delta = delta; + + if ( dim == AF_DIMENSION_HORZ ) + { + metrics->root.scaler.x_scale = scale; + metrics->root.scaler.x_delta = delta; + } + else + { + metrics->root.scaler.y_scale = scale; + metrics->root.scaler.y_delta = delta; + } + + /* scale the widths */ + for ( nn = 0; nn < axis->width_count; nn++ ) + { + AF_Width width = axis->widths + nn; + + + width->cur = FT_MulFix( width->org, scale ); + width->fit = width->cur; + } + + /* an extra-light axis corresponds to a standard width that is */ + /* smaller than 5/8 pixels */ + axis->extra_light = + (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); + + if ( dim == AF_DIMENSION_VERT ) + { + /* scale the blue zones */ + for ( nn = 0; nn < axis->blue_count; nn++ ) + { + AF_LatinBlue blue = &axis->blues[nn]; + FT_Pos dist; + + + blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; + blue->ref.fit = blue->ref.cur; + blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; + blue->shoot.fit = blue->shoot.cur; + blue->flags &= ~AF_LATIN_BLUE_ACTIVE; + + /* a blue zone is only active if it is less than 3/4 pixels tall */ + dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); + if ( dist <= 48 && dist >= -48 ) + { +#if 0 + FT_Pos delta1; +#endif + FT_Pos delta2; + + + /* use discrete values for blue zone widths */ + +#if 0 + + /* generic, original code */ + delta1 = blue->shoot.org - blue->ref.org; + delta2 = delta1; + if ( delta1 < 0 ) + delta2 = -delta2; + + delta2 = FT_MulFix( delta2, scale ); + + if ( delta2 < 32 ) + delta2 = 0; + else if ( delta2 < 64 ) + delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); + else + delta2 = FT_PIX_ROUND( delta2 ); + + if ( delta1 < 0 ) + delta2 = -delta2; + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + blue->shoot.fit = blue->ref.fit + delta2; + +#else + + /* simplified version due to abs(dist) <= 48 */ + delta2 = dist; + if ( dist < 0 ) + delta2 = -delta2; + + if ( delta2 < 32 ) + delta2 = 0; + else if ( delta < 48 ) + delta2 = 32; + else + delta2 = 64; + + if ( dist < 0 ) + delta2 = -delta2; + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + blue->shoot.fit = blue->ref.fit - delta2; + +#endif + + blue->flags |= AF_LATIN_BLUE_ACTIVE; + } + } + } + } + + + /* Scale global values in both directions. */ + + FT_LOCAL_DEF( void ) + af_latin_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ) + { + metrics->root.scaler.render_mode = scaler->render_mode; + metrics->root.scaler.face = scaler->face; + + af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); + af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Walk over all contours and compute its segments. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Memory memory = hints->memory; + FT_Error error = AF_Err_Ok; + AF_Segment segment = NULL; + AF_SegmentRec seg0; + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + AF_Direction major_dir, segment_dir; + + + FT_ZERO( &seg0 ); + seg0.score = 32000; + seg0.flags = AF_EDGE_NORMAL; + + major_dir = (AF_Direction)FT_ABS( axis->major_dir ); + segment_dir = major_dir; + + axis->num_segments = 0; + + /* set up (u,v) in each point */ + if ( dim == AF_DIMENSION_HORZ ) + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fx; + point->v = point->fy; + } + } + else + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fy; + point->v = point->fx; + } + } + + /* do each contour separately */ + for ( ; contour < contour_limit; contour++ ) + { + AF_Point point = contour[0]; + AF_Point last = point->prev; + int on_edge = 0; + FT_Pos min_pos = 32000; /* minimum segment pos != min_coord */ + FT_Pos max_pos = -32000; /* maximum segment pos != max_coord */ + FT_Bool passed; + + + if ( point == last ) /* skip singletons -- just in case */ + continue; + + if ( FT_ABS( last->out_dir ) == major_dir && + FT_ABS( point->out_dir ) == major_dir ) + { + /* we are already on an edge, try to locate its start */ + last = point; + + for (;;) + { + point = point->prev; + if ( FT_ABS( point->out_dir ) != major_dir ) + { + point = point->next; + break; + } + if ( point == last ) + break; + } + } + + last = point; + passed = 0; + + for (;;) + { + FT_Pos u, v; + + + if ( on_edge ) + { + u = point->u; + if ( u < min_pos ) + min_pos = u; + if ( u > max_pos ) + max_pos = u; + + if ( point->out_dir != segment_dir || point == last ) + { + /* we are just leaving an edge; record a new segment! */ + segment->last = point; + segment->pos = (FT_Short)( ( min_pos + max_pos ) >> 1 ); + + /* a segment is round if either its first or last point */ + /* is a control point */ + if ( ( segment->first->flags | point->flags ) & + AF_FLAG_CONTROL ) + segment->flags |= AF_EDGE_ROUND; + + /* compute segment size */ + min_pos = max_pos = point->v; + + v = segment->first->v; + if ( v < min_pos ) + min_pos = v; + if ( v > max_pos ) + max_pos = v; + + segment->min_coord = (FT_Short)min_pos; + segment->max_coord = (FT_Short)max_pos; + segment->height = (FT_Short)( segment->max_coord - + segment->min_coord ); + + on_edge = 0; + segment = NULL; + /* fallthrough */ + } + } + + /* now exit if we are at the start/end point */ + if ( point == last ) + { + if ( passed ) + break; + passed = 1; + } + + if ( !on_edge && FT_ABS( point->out_dir ) == major_dir ) + { + /* this is the start of a new segment! */ + segment_dir = (AF_Direction)point->out_dir; + + /* clear all segment fields */ + error = af_axis_hints_new_segment( axis, memory, &segment ); + if ( error ) + goto Exit; + + segment[0] = seg0; + segment->dir = (FT_Char)segment_dir; + min_pos = max_pos = point->u; + segment->first = point; + segment->last = point; + on_edge = 1; + } + + point = point->next; + } + + } /* contours */ + + + /* now slightly increase the height of segments when this makes */ + /* sense -- this is used to better detect and ignore serifs */ + { + AF_Segment segments = axis->segments; + AF_Segment segments_end = segments + axis->num_segments; + + + for ( segment = segments; segment < segments_end; segment++ ) + { + AF_Point first = segment->first; + AF_Point last = segment->last; + FT_Pos first_v = first->v; + FT_Pos last_v = last->v; + + + if ( first == last ) + continue; + + if ( first_v < last_v ) + { + AF_Point p; + + + p = first->prev; + if ( p->v < first_v ) + segment->height = (FT_Short)( segment->height + + ( ( first_v - p->v ) >> 1 ) ); + + p = last->next; + if ( p->v > last_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - last_v ) >> 1 ) ); + } + else + { + AF_Point p; + + + p = first->prev; + if ( p->v > first_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - first_v ) >> 1 ) ); + + p = last->next; + if ( p->v < last_v ) + segment->height = (FT_Short)( segment->height + + ( ( last_v - p->v ) >> 1 ) ); + } + } + } + + Exit: + return error; + } + + + /* Link segments to form stems and serifs. */ + + FT_LOCAL_DEF( void ) + af_latin_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + FT_Pos len_threshold, len_score; + AF_Segment seg1, seg2; + + + len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); + if ( len_threshold == 0 ) + len_threshold = 1; + + len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 ); + + /* now compare each segment to the others */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + /* the fake segments are introduced to hint the metrics -- */ + /* we must never link them to anything */ + if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + continue; + + /* search for stems having opposite directions, */ + /* with seg1 to the `left' of seg2 */ + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + { + FT_Pos pos1 = seg1->pos; + FT_Pos pos2 = seg2->pos; + + + if ( seg1->dir + seg2->dir == 0 && pos2 > pos1 ) + { + /* compute distance between the two segments */ + FT_Pos dist = pos2 - pos1; + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len, score; + + + if ( min < seg2->min_coord ) + min = seg2->min_coord; + + if ( max > seg2->max_coord ) + max = seg2->max_coord; + + /* compute maximum coordinate difference of the two segments */ + len = max - min; + if ( len >= len_threshold ) + { + /* small coordinate differences cause a higher score, and */ + /* segments with a greater distance cause a higher score also */ + score = dist + len_score / len; + + /* and we search for the smallest score */ + /* of the sum of the two values */ + if ( score < seg1->score ) + { + seg1->score = score; + seg1->link = seg2; + } + + if ( score < seg2->score ) + { + seg2->score = score; + seg2->link = seg1; + } + } + } + } + } + + /* now compute the `serif' segments, cf. explanations in `afhints.h' */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + seg2 = seg1->link; + + if ( seg2 ) + { + if ( seg2->link != seg1 ) + { + seg1->link = 0; + seg1->serif = seg2->link; + } + } + } + } + + + /* Link segments to edges, using feature analysis for selection. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Error error = AF_Err_Ok; + FT_Memory memory = hints->memory; + AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim]; + + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + +#if 0 + AF_Direction up_dir; +#endif + FT_Fixed scale; + FT_Pos edge_distance_threshold; + FT_Pos segment_length_threshold; + + + axis->num_edges = 0; + + scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + +#if 0 + up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP + : AF_DIR_RIGHT; +#endif + + /* + * We ignore all segments that are less than 1 pixel in length + * to avoid many problems with serif fonts. We compute the + * corresponding threshold in font units. + */ + if ( dim == AF_DIMENSION_HORZ ) + segment_length_threshold = FT_DivFix( 64, hints->y_scale ); + else + segment_length_threshold = 0; + + /*********************************************************************/ + /* */ + /* We begin by generating a sorted table of edges for the current */ + /* direction. To do so, we simply scan each segment and try to find */ + /* an edge in our table that corresponds to its position. */ + /* */ + /* If no edge is found, we create and insert a new edge in the */ + /* sorted table. Otherwise, we simply add the segment to the edge's */ + /* list which gets processed in the second step to compute the */ + /* edge's properties. */ + /* */ + /* Note that the table of edges is sorted along the segment/edge */ + /* position. */ + /* */ + /*********************************************************************/ + + /* assure that edge distance threshold is at most 0.25px */ + edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, + scale ); + if ( edge_distance_threshold > 64 / 4 ) + edge_distance_threshold = 64 / 4; + + edge_distance_threshold = FT_DivFix( edge_distance_threshold, + scale ); + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge found = NULL; + FT_Int ee; + + + if ( seg->height < segment_length_threshold ) + continue; + + /* A special case for serif edges: If they are smaller than */ + /* 1.5 pixels we ignore them. */ + if ( seg->serif && + 2 * seg->height < 3 * segment_length_threshold ) + continue; + + /* look for an edge corresponding to the segment */ + for ( ee = 0; ee < axis->num_edges; ee++ ) + { + AF_Edge edge = axis->edges + ee; + FT_Pos dist; + + + dist = seg->pos - edge->fpos; + if ( dist < 0 ) + dist = -dist; + + if ( dist < edge_distance_threshold && edge->dir == seg->dir ) + { + found = edge; + break; + } + } + + if ( !found ) + { + AF_Edge edge; + + + /* insert a new edge in the list and */ + /* sort according to the position */ + error = af_axis_hints_new_edge( axis, seg->pos, + (AF_Direction)seg->dir, + memory, &edge ); + if ( error ) + goto Exit; + + /* add the segment to the new edge's list */ + FT_ZERO( edge ); + + edge->first = seg; + edge->last = seg; + edge->dir = seg->dir; + edge->fpos = seg->pos; + edge->opos = FT_MulFix( seg->pos, scale ); + edge->pos = edge->opos; + seg->edge_next = seg; + } + else + { + /* if an edge was found, simply add the segment to the edge's */ + /* list */ + seg->edge_next = found->first; + found->last->edge_next = seg; + found->last = seg; + } + } + + + /*********************************************************************/ + /* */ + /* Good, we will now compute each edge's properties according to */ + /* the segments found on its position. Basically, these are */ + /* */ + /* - the edge's main direction */ + /* - stem edge, serif edge or both (which defaults to stem then) */ + /* - rounded edge, straight or both (which defaults to straight) */ + /* - link for edge */ + /* */ + /*********************************************************************/ + + /* first of all, set the `edge' field in each segment -- this is */ + /* required in order to compute edge links */ + + /* + * Note that removing this loop and setting the `edge' field of each + * segment directly in the code above slows down execution speed for + * some reasons on platforms like the Sun. + */ + { + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + + + for ( edge = edges; edge < edge_limit; edge++ ) + { + seg = edge->first; + if ( seg ) + do + { + seg->edge = edge; + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + + /* now compute each edge properties */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Int is_round = 0; /* does it contain round segments? */ + FT_Int is_straight = 0; /* does it contain straight segments? */ +#if 0 + FT_Pos ups = 0; /* number of upwards segments */ + FT_Pos downs = 0; /* number of downwards segments */ +#endif + + + seg = edge->first; + + do + { + FT_Bool is_serif; + + + /* check for roundness of segment */ + if ( seg->flags & AF_EDGE_ROUND ) + is_round++; + else + is_straight++; + +#if 0 + /* check for segment direction */ + if ( seg->dir == up_dir ) + ups += seg->max_coord - seg->min_coord; + else + downs += seg->max_coord - seg->min_coord; +#endif + + /* check for links -- if seg->serif is set, then seg->link must */ + /* be ignored */ + is_serif = (FT_Bool)( seg->serif && + seg->serif->edge && + seg->serif->edge != edge ); + + if ( ( seg->link && seg->link->edge != NULL ) || is_serif ) + { + AF_Edge edge2; + AF_Segment seg2; + + + edge2 = edge->link; + seg2 = seg->link; + + if ( is_serif ) + { + seg2 = seg->serif; + edge2 = edge->serif; + } + + if ( edge2 ) + { + FT_Pos edge_delta; + FT_Pos seg_delta; + + + edge_delta = edge->fpos - edge2->fpos; + if ( edge_delta < 0 ) + edge_delta = -edge_delta; + + seg_delta = seg->pos - seg2->pos; + if ( seg_delta < 0 ) + seg_delta = -seg_delta; + + if ( seg_delta < edge_delta ) + edge2 = seg2->edge; + } + else + edge2 = seg2->edge; + + if ( is_serif ) + { + edge->serif = edge2; + edge2->flags |= AF_EDGE_SERIF; + } + else + edge->link = edge2; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + + /* set the round/straight flags */ + edge->flags = AF_EDGE_NORMAL; + + if ( is_round > 0 && is_round >= is_straight ) + edge->flags |= AF_EDGE_ROUND; + +#if 0 + /* set the edge's main direction */ + edge->dir = AF_DIR_NONE; + + if ( ups > downs ) + edge->dir = (FT_Char)up_dir; + + else if ( ups < downs ) + edge->dir = (FT_Char)-up_dir; + + else if ( ups == downs ) + edge->dir = 0; /* both up and down! */ +#endif + + /* get rid of serifs if link is set */ + /* XXX: This gets rid of many unpleasant artefacts! */ + /* Example: the `c' in cour.pfa at size 13 */ + + if ( edge->serif && edge->link ) + edge->serif = 0; + } + } + + Exit: + return error; + } + + + /* Detect segments and edges for given dimension. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ) + { + FT_Error error; + + + error = af_latin_hints_compute_segments( hints, dim ); + if ( !error ) + { + af_latin_hints_link_segments( hints, dim ); + + error = af_latin_hints_compute_edges( hints, dim ); + } + + return error; + } + + + /* Compute all edges which lie within blue zones. */ + + FT_LOCAL_DEF( void ) + af_latin_hints_compute_blue_edges( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT]; + AF_Edge edge = axis->edges; + AF_Edge edge_limit = edge + axis->num_edges; + AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT]; + FT_Fixed scale = latin->scale; + + + /* compute which blue zones are active, i.e. have their scaled */ + /* size < 3/4 pixels */ + + /* for each horizontal edge search the blue zone which is closest */ + for ( ; edge < edge_limit; edge++ ) + { + FT_Int bb; + AF_Width best_blue = NULL; + FT_Pos best_dist; /* initial threshold */ + + + /* compute the initial threshold as a fraction of the EM size */ + /* (the value 40 is heuristic) */ + best_dist = FT_MulFix( metrics->units_per_em / 40, scale ); + + /* assure a minimum distance of 0.5px */ + if ( best_dist > 64 / 2 ) + best_dist = 64 / 2; + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + AF_LatinBlue blue = latin->blues + bb; + FT_Bool is_top_blue, is_major_dir; + + + /* skip inactive blue zones (i.e., those that are too large) */ + if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) ) + continue; + + /* if it is a top zone, check for right edges -- if it is a bottom */ + /* zone, check for left edges */ + /* */ + /* of course, that's for TrueType */ + is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); + is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + + /* if it is a top zone, the edge must be against the major */ + /* direction; if it is a bottom zone, it must be in the major */ + /* direction */ + if ( is_top_blue ^ is_major_dir ) + { + FT_Pos dist; + + + /* first of all, compare it to the reference position */ + dist = edge->fpos - blue->ref.org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = &blue->ref; + } + + /* now compare it to the overshoot position and check whether */ + /* the edge is rounded, and whether the edge is over the */ + /* reference position of a top zone, or under the reference */ + /* position of a bottom zone */ + if ( edge->flags & AF_EDGE_ROUND && dist != 0 ) + { + FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org ); + + + if ( is_top_blue ^ is_under_ref ) + { + dist = edge->fpos - blue->shoot.org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = &blue->shoot; + } + } + } + } + } + + if ( best_blue ) + edge->blue_edge = best_blue; + } + } + + + /* Initalize hinting engine. */ + + static FT_Error + af_latin_hints_init( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + FT_Render_Mode mode; + FT_UInt32 scaler_flags, other_flags; + FT_Face face = metrics->root.scaler.face; + + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); + + /* + * correct x_scale and y_scale if needed, since they may have + * been modified by `af_latin_metrics_scale_dim' above + */ + hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; + hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; + hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; + hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; + + /* compute flags depending on render mode, etc. */ + mode = metrics->root.scaler.render_mode; + +#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */ + if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) + { + metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; + } +#endif + + scaler_flags = hints->scaler_flags; + other_flags = 0; + + /* + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) + other_flags |= AF_LATIN_HINTS_HORZ_SNAP; + + /* + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) + other_flags |= AF_LATIN_HINTS_VERT_SNAP; + + /* + * We adjust stems to full pixels only if we don't use the `light' mode. + */ + if ( mode != FT_RENDER_MODE_LIGHT ) + other_flags |= AF_LATIN_HINTS_STEM_ADJUST; + + if ( mode == FT_RENDER_MODE_MONO ) + other_flags |= AF_LATIN_HINTS_MONO; + + /* + * In `light' hinting mode we disable horizontal hinting completely. + * We also do it if the face is italic. + */ + if ( mode == FT_RENDER_MODE_LIGHT || + ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 ) + scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; + + hints->scaler_flags = scaler_flags; + hints->other_flags = other_flags; + + return AF_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H G R I D - F I T T I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* Snap a given width in scaled coordinates to one of the */ + /* current standard widths. */ + + static FT_Pos + af_latin_snap_width( AF_Width widths, + FT_Int count, + FT_Pos width ) + { + int n; + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + FT_Pos scaled; + + + for ( n = 0; n < count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + scaled = FT_PIX_ROUND( reference ); + + if ( width >= reference ) + { + if ( width < scaled + 48 ) + width = reference; + } + else + { + if ( width > scaled - 48 ) + width = reference; + } + + return width; + } + + + /* Compute the snapped width of a given stem, ignoring very thin ones. */ + /* There is a lot of voodoo in this function; changing the hard-coded */ + /* parameters influence the whole hinting process. */ + + static FT_Pos + af_latin_compute_stem_width( AF_GlyphHints hints, + AF_Dimension dim, + FT_Pos width, + AF_Edge_Flags base_flags, + AF_Edge_Flags stem_flags ) + { + AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics; + AF_LatinAxis axis = & metrics->axis[dim]; + FT_Pos dist = width; + FT_Int sign = 0; + FT_Int vertical = ( dim == AF_DIMENSION_VERT ); + + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) || + axis->extra_light ) + return width; + + if ( dist < 0 ) + { + dist = -width; + sign = 1; + } + + if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || + ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) + { + /* smooth hinting process: very lightly quantize the stem width */ + + /* leave the widths of serifs alone */ + if ( ( stem_flags & AF_EDGE_SERIF ) && + vertical && + ( dist < 3 * 64 ) ) + goto Done_Width; + + else if ( base_flags & AF_EDGE_ROUND ) + { + if ( dist < 80 ) + dist = 64; + } + else if ( dist < 56 ) + dist = 56; + + if ( axis->width_count > 0 ) + { + FT_Pos delta; + + + /* compare to standard width */ + delta = dist - axis->widths[0].cur; + + if ( delta < 0 ) + delta = -delta; + + if ( delta < 40 ) + { + dist = axis->widths[0].cur; + if ( dist < 48 ) + dist = 48; + + goto Done_Width; + } + + if ( dist < 3 * 64 ) + { + delta = dist & 63; + dist &= -64; + + if ( delta < 10 ) + dist += delta; + + else if ( delta < 32 ) + dist += 10; + + else if ( delta < 54 ) + dist += 54; + + else + dist += delta; + } + else + dist = ( dist + 32 ) & ~63; + } + } + else + { + /* strong hinting process: snap the stem width to integer pixels */ + + FT_Pos org_dist = dist; + + + dist = af_latin_snap_width( axis->widths, axis->width_count, dist ); + + if ( vertical ) + { + /* in the case of vertical hinting, always round */ + /* the stem heights to integer pixels */ + + if ( dist >= 64 ) + dist = ( dist + 16 ) & ~63; + else + dist = 64; + } + else + { + if ( AF_LATIN_HINTS_DO_MONO( hints ) ) + { + /* monochrome horizontal hinting: snap widths to integer pixels */ + /* with a different threshold */ + + if ( dist < 64 ) + dist = 64; + else + dist = ( dist + 32 ) & ~63; + } + else + { + /* for horizontal anti-aliased hinting, we adopt a more subtle */ + /* approach: we strengthen small stems, round stems whose size */ + /* is between 1 and 2 pixels to an integer, otherwise nothing */ + + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + + else if ( dist < 128 ) + { + /* We only round to an integer width if the corresponding */ + /* distortion is less than 1/4 pixel. Otherwise this */ + /* makes everything worse since the diagonals, which are */ + /* not hinted, appear a lot bolder or thinner than the */ + /* vertical stems. */ + + FT_Pos delta; + + + dist = ( dist + 22 ) & ~63; + delta = dist - org_dist; + if ( delta < 0 ) + delta = -delta; + + if (delta >= 16) + { + dist = org_dist; + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + } + } + else + /* round otherwise to prevent color fringes in LCD mode */ + dist = ( dist + 32 ) & ~63; + } + } + } + + Done_Width: + if ( sign ) + dist = -dist; + + return dist; + } + + + /* Align one stem edge relative to the previous stem edge. */ + + static void + af_latin_align_linked_edge( AF_GlyphHints hints, + AF_Dimension dim, + AF_Edge base_edge, + AF_Edge stem_edge ) + { + FT_Pos dist = stem_edge->opos - base_edge->opos; + + FT_Pos fitted_width = af_latin_compute_stem_width( + hints, dim, dist, + (AF_Edge_Flags)base_edge->flags, + (AF_Edge_Flags)stem_edge->flags ); + + + stem_edge->pos = base_edge->pos + fitted_width; + + FT_TRACE5(( " LINK: edge %d (opos=%.2f) linked to (%.2f)," + " dist was %.2f, now %.2f\n", + stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0, + stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 )); + } + + + /* Shift the coordinates of the `serif' edge by the same amount */ + /* as the corresponding `base' edge has been moved already. */ + + static void + af_latin_align_serif_edge( AF_GlyphHints hints, + AF_Edge base, + AF_Edge serif ) + { + FT_UNUSED( hints ); + + serif->pos = base->pos + ( serif->opos - base->opos ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** E D G E H I N T I N G ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* The main grid-fitting routine. */ + + FT_LOCAL_DEF( void ) + af_latin_hint_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + FT_PtrDist n_edges; + AF_Edge edge; + AF_Edge anchor = NULL; + FT_Int has_serifs = 0; + + + FT_TRACE5(("%s edge hinting\n", dim == AF_DIMENSION_VERT ? "horizontal" + : "vertical")); + + /* we begin by aligning all stems relative to the blue zone */ + /* if needed -- that's only for horizontal edges */ + + if ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_BLUES( hints ) ) + { + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Width blue; + AF_Edge edge1, edge2; /* these edges form the stem to check */ + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + blue = edge->blue_edge; + edge1 = NULL; + edge2 = edge->link; + + if ( blue ) + edge1 = edge; + + /* flip edges if the other stem is aligned to a blue zone */ + else if ( edge2 && edge2->blue_edge ) + { + blue = edge2->blue_edge; + edge1 = edge2; + edge2 = edge; + } + + if ( !edge1 ) + continue; + + FT_TRACE5(( " BLUE: edge %d (opos=%.2f) snapped to (%.2f)," + " was (%.2f)\n", + edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0, + edge1->pos / 64.0 )); + + edge1->pos = blue->fit; + edge1->flags |= AF_EDGE_DONE; + + if ( edge2 && !edge2->blue_edge ) + { + af_latin_align_linked_edge( hints, dim, edge1, edge2 ); + edge2->flags |= AF_EDGE_DONE; + } + + if ( !anchor ) + anchor = edge; + } + } + + /* now we align all other stem edges, trying to maintain the */ + /* relative order of stems in the glyph */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + /* skip all non-stem edges */ + edge2 = edge->link; + if ( !edge2 ) + { + has_serifs++; + continue; + } + + /* now align the stem */ + + /* this should not happen, but it's better to be safe */ + if ( edge2->blue_edge ) + { + FT_TRACE5(( " ASSERTION FAILED for edge %d\n", edge2-edges )); + + af_latin_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + continue; + } + + if ( !anchor ) + { + /* if we reach this if clause, no stem has been aligned yet */ + + FT_Pos org_len, org_center, cur_len; + FT_Pos cur_pos1, error1, error2, u_off, d_off; + + + org_len = edge2->opos - edge->opos; + cur_len = af_latin_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + /* some voodoo to specially round edges for small stem widths; */ + /* the idea is to align the center of a stem, then shifting */ + /* the stem edges to suitable positions */ + if ( cur_len <= 64 ) + { + /* width <= 1px */ + u_off = 32; + d_off = 32; + } + else + { + /* 1px < width < 1.5px */ + u_off = 38; + d_off = 26; + } + + if ( cur_len < 96 ) + { + org_center = edge->opos + ( org_len >> 1 ); + cur_pos1 = FT_PIX_ROUND( org_center ); + + error1 = org_center - ( cur_pos1 - u_off ); + if ( error1 < 0 ) + error1 = -error1; + + error2 = org_center - ( cur_pos1 + d_off ); + if ( error2 < 0 ) + error2 = -error2; + + if ( error1 < error2 ) + cur_pos1 -= u_off; + else + cur_pos1 += d_off; + + edge->pos = cur_pos1 - cur_len / 2; + edge2->pos = edge->pos + cur_len; + } + else + edge->pos = FT_PIX_ROUND( edge->opos ); + + FT_TRACE5(( " ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)" + " snapped to (%.2f) (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge2 - edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + anchor = edge; + + edge->flags |= AF_EDGE_DONE; + + af_latin_align_linked_edge( hints, dim, edge, edge2 ); + } + else + { + FT_Pos org_pos, org_len, org_center, cur_len; + FT_Pos cur_pos1, cur_pos2, delta1, delta2; + + + org_pos = anchor->pos + ( edge->opos - anchor->opos ); + org_len = edge2->opos - edge->opos; + org_center = org_pos + ( org_len >> 1 ); + + cur_len = af_latin_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + if ( edge2->flags & AF_EDGE_DONE ) + { + FT_TRACE5(( " ADJUST: edge %d (pos=%.2f) moved to %.2f\n", + edge - edges, edge->pos / 64.0, + ( edge2->pos - cur_len ) / 64.0 )); + + edge->pos = edge2->pos - cur_len; + } + + else if ( cur_len < 96 ) + { + FT_Pos u_off, d_off; + + + cur_pos1 = FT_PIX_ROUND( org_center ); + + if (cur_len <= 64 ) + { + u_off = 32; + d_off = 32; + } + else + { + u_off = 38; + d_off = 26; + } + + delta1 = org_center - ( cur_pos1 - u_off ); + if ( delta1 < 0 ) + delta1 = -delta1; + + delta2 = org_center - ( cur_pos1 + d_off ); + if ( delta2 < 0 ) + delta2 = -delta2; + + if ( delta1 < delta2 ) + cur_pos1 -= u_off; + else + cur_pos1 += d_off; + + edge->pos = cur_pos1 - cur_len / 2; + edge2->pos = cur_pos1 + cur_len / 2; + + FT_TRACE5(( " STEM: %d (opos=%.2f) to %d (opos=%.2f)" + " snapped to (%.2f) and (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge2 - edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + } + else + { + org_pos = anchor->pos + ( edge->opos - anchor->opos ); + org_len = edge2->opos - edge->opos; + org_center = org_pos + ( org_len >> 1 ); + + cur_len = af_latin_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + cur_pos1 = FT_PIX_ROUND( org_pos ); + delta1 = cur_pos1 + ( cur_len >> 1 ) - org_center; + if ( delta1 < 0 ) + delta1 = -delta1; + + cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len; + delta2 = cur_pos2 + ( cur_len >> 1 ) - org_center; + if ( delta2 < 0 ) + delta2 = -delta2; + + edge->pos = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2; + edge2->pos = edge->pos + cur_len; + + FT_TRACE5(( " STEM: %d (opos=%.2f) to %d (opos=%.2f)" + " snapped to (%.2f) and (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge2 - edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + } + + edge->flags |= AF_EDGE_DONE; + edge2->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + { + FT_TRACE5(( " BOUND: %d (pos=%.2f) to (%.2f)\n", + edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 )); + edge->pos = edge[-1].pos; + } + } + } + + /* make sure that lowercase m's maintain their symmetry */ + + /* In general, lowercase m's have six vertical edges if they are sans */ + /* serif, or twelve if they are with serifs. This implementation is */ + /* based on that assumption, and seems to work very well with most */ + /* faces. However, if for a certain face this assumption is not */ + /* true, the m is just rendered like before. In addition, any stem */ + /* correction will only be applied to symmetrical glyphs (even if the */ + /* glyph is not an m), so the potential for unwanted distortion is */ + /* relatively low. */ + + /* We don't handle horizontal edges since we can't easily assure that */ + /* the third (lowest) stem aligns with the base line; it might end up */ + /* one pixel higher or lower. */ + + n_edges = edge_limit - edges; + if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) + { + AF_Edge edge1, edge2, edge3; + FT_Pos dist1, dist2, span, delta; + + + if ( n_edges == 6 ) + { + edge1 = edges; + edge2 = edges + 2; + edge3 = edges + 4; + } + else + { + edge1 = edges + 1; + edge2 = edges + 5; + edge3 = edges + 9; + } + + dist1 = edge2->opos - edge1->opos; + dist2 = edge3->opos - edge2->opos; + + span = dist1 - dist2; + if ( span < 0 ) + span = -span; + + if ( span < 8 ) + { + delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); + edge3->pos -= delta; + if ( edge3->link ) + edge3->link->pos -= delta; + + /* move the serifs along with the stem */ + if ( n_edges == 12 ) + { + ( edges + 8 )->pos -= delta; + ( edges + 11 )->pos -= delta; + } + + edge3->flags |= AF_EDGE_DONE; + if ( edge3->link ) + edge3->link->flags |= AF_EDGE_DONE; + } + } + + if ( has_serifs || !anchor ) + { + /* + * now hint the remaining edges (serifs and single) in order + * to complete our processing + */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Pos delta; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + delta = 1000; + + if ( edge->serif ) + { + delta = edge->serif->opos - edge->opos; + if ( delta < 0 ) + delta = -delta; + } + + if ( delta < 64 + 16 ) + { + af_latin_align_serif_edge( hints, edge->serif, edge ); + FT_TRACE5(( " SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)" + " aligned to (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge->serif - edges, edge->serif->opos / 64.0, + edge->pos / 64.0 )); + } + else if ( !anchor ) + { + edge->pos = FT_PIX_ROUND( edge->opos ); + anchor = edge; + FT_TRACE5(( " SERIF_ANCHOR: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + } + else + { + AF_Edge before, after; + + + for ( before = edge - 1; before >= edges; before-- ) + if ( before->flags & AF_EDGE_DONE ) + break; + + for ( after = edge + 1; after < edge_limit; after++ ) + if ( after->flags & AF_EDGE_DONE ) + break; + + if ( before >= edges && before < edge && + after < edge_limit && after > edge ) + { + if ( after->opos == before->opos ) + edge->pos = before->pos; + else + edge->pos = before->pos + + FT_MulDiv( edge->opos - before->opos, + after->pos - before->pos, + after->opos - before->opos ); + + FT_TRACE5(( " SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)" + " from %d (opos=%.2f)\n", + edge - edges, edge->opos / 64.0, + edge->pos / 64.0, + before - edges, before->opos / 64.0 )); + } + else + { + edge->pos = anchor->pos + + ( ( edge->opos - anchor->opos + 16 ) & ~31 ); + + FT_TRACE5(( " SERIF_LINK2: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge - edges, edge->opos / 64.0, edge->pos / 64.0 )); + } + } + + edge->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + edge->pos = edge[-1].pos; + + if ( edge + 1 < edge_limit && + edge[1].flags & AF_EDGE_DONE && + edge->pos > edge[1].pos ) + edge->pos = edge[1].pos; + } + } + + FT_TRACE5(( "\n" )); + } + + + /* Apply the complete hinting algorithm to a latin glyph. */ + + static FT_Error + af_latin_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_LatinMetrics metrics ) + { + FT_Error error; + int dim; + + + error = af_glyph_hints_reload( hints, outline ); + if ( error ) + goto Exit; + + /* analyze glyph outline */ +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT || + AF_HINTS_DO_HORIZONTAL( hints ) ) +#else + if ( AF_HINTS_DO_HORIZONTAL( hints ) ) +#endif + { + error = af_latin_hints_detect_features( hints, AF_DIMENSION_HORZ ); + if ( error ) + goto Exit; + } + + if ( AF_HINTS_DO_VERTICAL( hints ) ) + { + error = af_latin_hints_detect_features( hints, AF_DIMENSION_VERT ); + if ( error ) + goto Exit; + + af_latin_hints_compute_blue_edges( hints, metrics ); + } + + /* grid-fit the outline */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( dim == AF_DIMENSION_HORZ && + metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) + { + AF_WarperRec warper; + FT_Fixed scale; + FT_Pos delta; + + + af_warper_compute( &warper, hints, (AF_Dimension)dim, + &scale, &delta ); + af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, + scale, delta ); + continue; + } +#endif + + if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || + ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) + { + af_latin_hint_edges( hints, (AF_Dimension)dim ); + af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); + } + } + af_glyph_hints_save( hints, outline ); + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* XXX: this should probably fine tuned to differentiate better between */ + /* scripts... */ + + static const AF_Script_UniRangeRec af_latin_uniranges[] = + { + AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */ + AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */ + AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */ + AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */ + AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */ + AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */ + AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */ + AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */ + AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */ + AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */ + AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */ + AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */ + AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */ + AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */ + AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */ + AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */ + AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */ + AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */ + AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */ + AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */ + AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */ + AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */ + AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */ + AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */ + AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */ + AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */ + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS(af_latin_script_class, + AF_SCRIPT_LATIN, + af_latin_uniranges, + + sizeof( AF_LatinMetricsRec ), + + (AF_Script_InitMetricsFunc) af_latin_metrics_init, + (AF_Script_ScaleMetricsFunc)af_latin_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_latin_hints_init, + (AF_Script_ApplyHintsFunc) af_latin_hints_apply + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/aflatin.h b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin.h new file mode 100644 index 000000000..c5c2d13f8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin.h @@ -0,0 +1,211 @@ +/***************************************************************************/ +/* */ +/* aflatin.h */ +/* */ +/* Auto-fitter hinting routines for latin script (specification). */ +/* */ +/* Copyright 2003-2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFLATIN_H__ +#define __AFLATIN_H__ + +#include "afhints.h" + + +FT_BEGIN_HEADER + + + /* the latin-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_latin_script_class) + + + /* constants are given with units_per_em == 2048 in mind */ +#define AF_LATIN_CONSTANT( metrics, c ) \ + ( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* + * The following declarations could be embedded in the file `aflatin.c'; + * they have been made semi-public to allow alternate script hinters to + * re-use some of them. + */ + + + /* Latin (global) metrics management */ + + enum + { + AF_LATIN_BLUE_CAPITAL_TOP, + AF_LATIN_BLUE_CAPITAL_BOTTOM, + AF_LATIN_BLUE_SMALL_F_TOP, + AF_LATIN_BLUE_SMALL_TOP, + AF_LATIN_BLUE_SMALL_BOTTOM, + AF_LATIN_BLUE_SMALL_MINOR, + + AF_LATIN_BLUE_MAX + }; + + +#define AF_LATIN_IS_TOP_BLUE( b ) ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \ + (b) == AF_LATIN_BLUE_SMALL_F_TOP || \ + (b) == AF_LATIN_BLUE_SMALL_TOP ) + +#define AF_LATIN_MAX_WIDTHS 16 +#define AF_LATIN_MAX_BLUES AF_LATIN_BLUE_MAX + + + enum + { + AF_LATIN_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */ + AF_LATIN_BLUE_TOP = 1 << 1, /* result of AF_LATIN_IS_TOP_BLUE */ + AF_LATIN_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */ + /* optimization */ + AF_LATIN_BLUE_FLAG_MAX + }; + + + typedef struct AF_LatinBlueRec_ + { + AF_WidthRec ref; + AF_WidthRec shoot; + FT_UInt flags; + + } AF_LatinBlueRec, *AF_LatinBlue; + + + typedef struct AF_LatinAxisRec_ + { + FT_Fixed scale; + FT_Pos delta; + + FT_UInt width_count; /* number of used widths */ + AF_WidthRec widths[AF_LATIN_MAX_WIDTHS]; /* widths array */ + FT_Pos edge_distance_threshold; /* used for creating edges */ + FT_Pos standard_width; /* the default stem thickness */ + FT_Bool extra_light; /* is standard width very light? */ + + /* ignored for horizontal metrics */ + FT_UInt blue_count; + AF_LatinBlueRec blues[AF_LATIN_BLUE_MAX]; + + FT_Fixed org_scale; + FT_Pos org_delta; + + } AF_LatinAxisRec, *AF_LatinAxis; + + + typedef struct AF_LatinMetricsRec_ + { + AF_ScriptMetricsRec root; + FT_UInt units_per_em; + AF_LatinAxisRec axis[AF_DIMENSION_MAX]; + + } AF_LatinMetricsRec, *AF_LatinMetrics; + + + FT_LOCAL( FT_Error ) + af_latin_metrics_init( AF_LatinMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_latin_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ); + + FT_LOCAL( void ) + af_latin_metrics_init_widths( AF_LatinMetrics metrics, + FT_Face face, + FT_ULong charcode ); + + FT_LOCAL( void ) + af_latin_metrics_check_digits( AF_LatinMetrics metrics, + FT_Face face ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + enum + { + AF_LATIN_HINTS_HORZ_SNAP = 1 << 0, /* enable stem width snapping */ + AF_LATIN_HINTS_VERT_SNAP = 1 << 1, /* enable stem height snapping */ + AF_LATIN_HINTS_STEM_ADJUST = 1 << 2, /* enable stem width/height */ + /* adjustment */ + AF_LATIN_HINTS_MONO = 1 << 3 /* indicate monochrome */ + /* rendering */ + }; + + +#define AF_LATIN_HINTS_DO_HORZ_SNAP( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_HORZ_SNAP ) + +#define AF_LATIN_HINTS_DO_VERT_SNAP( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_VERT_SNAP ) + +#define AF_LATIN_HINTS_DO_STEM_ADJUST( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_STEM_ADJUST ) + +#define AF_LATIN_HINTS_DO_MONO( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_MONO ) + + + /* + * This shouldn't normally be exported. However, other scripts might + * like to use this function as-is. + */ + FT_LOCAL( FT_Error ) + af_latin_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + /* + * This shouldn't normally be exported. However, other scripts might + * want to use this function as-is. + */ + FT_LOCAL( void ) + af_latin_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + /* + * This shouldn't normally be exported. However, other scripts might + * want to use this function as-is. + */ + FT_LOCAL( FT_Error ) + af_latin_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( FT_Error ) + af_latin_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ); + +/* */ + +FT_END_HEADER + +#endif /* __AFLATIN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/aflatin2.c b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin2.c new file mode 100644 index 000000000..23558b879 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin2.c @@ -0,0 +1,2374 @@ +/***************************************************************************/ +/* */ +/* aflatin2.c */ +/* */ +/* Auto-fitter hinting routines for latin script (body). */ +/* */ +/* Copyright 2003-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include FT_ADVANCES_H + +#include "aflatin.h" +#include "aflatin2.h" +#include "aferrors.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_aflatin2 + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL_DEF( void ) + af_latin2_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + af_latin2_metrics_init_widths( AF_LatinMetrics metrics, + FT_Face face, + FT_ULong charcode ) + { + /* scan the array of segments in each direction */ + AF_GlyphHintsRec hints[1]; + + + af_glyph_hints_init( hints, face->memory ); + + metrics->axis[AF_DIMENSION_HORZ].width_count = 0; + metrics->axis[AF_DIMENSION_VERT].width_count = 0; + + { + FT_Error error; + FT_UInt glyph_index; + int dim; + AF_LatinMetricsRec dummy[1]; + AF_Scaler scaler = &dummy->root.scaler; + + + glyph_index = FT_Get_Char_Index( face, charcode ); + if ( glyph_index == 0 ) + goto Exit; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || face->glyph->outline.n_points <= 0 ) + goto Exit; + + FT_ZERO( dummy ); + + dummy->units_per_em = metrics->units_per_em; + scaler->x_scale = scaler->y_scale = 0x10000L; + scaler->x_delta = scaler->y_delta = 0; + scaler->face = face; + scaler->render_mode = FT_RENDER_MODE_NORMAL; + scaler->flags = 0; + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); + + error = af_glyph_hints_reload( hints, &face->glyph->outline ); + if ( error ) + goto Exit; + + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + AF_AxisHints axhints = &hints->axis[dim]; + AF_Segment seg, limit, link; + FT_UInt num_widths = 0; + + + error = af_latin2_hints_compute_segments( hints, + (AF_Dimension)dim ); + if ( error ) + goto Exit; + + af_latin2_hints_link_segments( hints, + (AF_Dimension)dim ); + + seg = axhints->segments; + limit = seg + axhints->num_segments; + + for ( ; seg < limit; seg++ ) + { + link = seg->link; + + /* we only consider stem segments there! */ + if ( link && link->link == seg && link > seg ) + { + FT_Pos dist; + + + dist = seg->pos - link->pos; + if ( dist < 0 ) + dist = -dist; + + if ( num_widths < AF_LATIN_MAX_WIDTHS ) + axis->widths[ num_widths++ ].org = dist; + } + } + + af_sort_widths( num_widths, axis->widths ); + axis->width_count = num_widths; + } + + Exit: + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + FT_Pos stdw; + + + stdw = ( axis->width_count > 0 ) + ? axis->widths[0].org + : AF_LATIN_CONSTANT( metrics, 50 ); + + /* let's try 20% of the smallest width */ + axis->edge_distance_threshold = stdw / 5; + axis->standard_width = stdw; + axis->extra_light = 0; + } + } + + af_glyph_hints_done( hints ); + } + + + +#define AF_LATIN_MAX_TEST_CHARACTERS 12 + + + static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES] + [AF_LATIN_MAX_TEST_CHARACTERS+1] = + { + "THEZOCQS", + "HEZLOCUS", + "fijkdbh", + "xzroesc", + "xzroesc", + "pqgjy" + }; + + + static void + af_latin2_metrics_init_blues( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Int num_flats; + FT_Int num_rounds; + FT_Int bb; + AF_LatinBlue blue; + FT_Error error; + AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT]; + FT_GlyphSlot glyph = face->glyph; + + + /* we compute the blues simply by loading each character from the */ + /* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */ + /* bottom-most points (depending on `AF_IS_TOP_BLUE') */ + + FT_TRACE5(( "blue zones computation\n" )); + FT_TRACE5(( "------------------------------------------------\n" )); + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + const char* p = af_latin2_blue_chars[bb]; + const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS; + FT_Pos* blue_ref; + FT_Pos* blue_shoot; + + + FT_TRACE5(( "blue %3d: ", bb )); + + num_flats = 0; + num_rounds = 0; + + for ( ; p < limit && *p; p++ ) + { + FT_UInt glyph_index; + FT_Int best_point, best_y, best_first, best_last; + FT_Vector* points; + FT_Bool round; + + + FT_TRACE5(( "'%c'", *p )); + + /* load the character in the face -- skip unknown or empty ones */ + glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p ); + if ( glyph_index == 0 ) + continue; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || glyph->outline.n_points <= 0 ) + continue; + + /* now compute min or max point indices and coordinates */ + points = glyph->outline.points; + best_point = -1; + best_y = 0; /* make compiler happy */ + best_first = 0; /* ditto */ + best_last = 0; /* ditto */ + + { + FT_Int nn; + FT_Int first = 0; + FT_Int last = -1; + + + for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ ) + { + FT_Int old_best_point = best_point; + FT_Int pp; + + + last = glyph->outline.contours[nn]; + + /* Avoid single-point contours since they are never rasterized. */ + /* In some fonts, they correspond to mark attachment points */ + /* which are way outside of the glyph's real outline. */ + if ( last == first ) + continue; + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y > best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + else + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y < best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + + if ( best_point != old_best_point ) + { + best_first = first; + best_last = last; + } + } + FT_TRACE5(( "%5d", best_y )); + } + + /* now check whether the point belongs to a straight or round */ + /* segment; we first need to find in which contour the extremum */ + /* lies, then inspect its previous and next points */ + { + FT_Int start, end, prev, next; + FT_Pos dist; + + + /* now look for the previous and next points that are not on the */ + /* same Y coordinate. Threshold the `closeness'... */ + start = end = best_point; + + do + { + prev = start-1; + if ( prev < best_first ) + prev = best_last; + + dist = points[prev].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + start = prev; + + } while ( start != best_point ); + + do + { + next = end+1; + if ( next > best_last ) + next = best_first; + + dist = points[next].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + end = next; + + } while ( end != best_point ); + + /* now, set the `round' flag depending on the segment's kind */ + round = FT_BOOL( + FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON || + FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON ); + + FT_TRACE5(( "%c ", round ? 'r' : 'f' )); + } + + if ( round ) + rounds[num_rounds++] = best_y; + else + flats[num_flats++] = best_y; + } + + FT_TRACE5(( "\n" )); + + if ( num_flats == 0 && num_rounds == 0 ) + { + /* + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then + */ + FT_TRACE5(( "empty\n" )); + continue; + } + + /* we have computed the contents of the `rounds' and `flats' tables, */ + /* now determine the reference and overshoot position of the blue -- */ + /* we simply take the median value after a simple sort */ + af_sort_pos( num_rounds, rounds ); + af_sort_pos( num_flats, flats ); + + blue = & axis->blues[axis->blue_count]; + blue_ref = & blue->ref.org; + blue_shoot = & blue->shoot.org; + + axis->blue_count++; + + if ( num_flats == 0 ) + { + *blue_ref = + *blue_shoot = rounds[num_rounds / 2]; + } + else if ( num_rounds == 0 ) + { + *blue_ref = + *blue_shoot = flats[num_flats / 2]; + } + else + { + *blue_ref = flats[num_flats / 2]; + *blue_shoot = rounds[num_rounds / 2]; + } + + /* there are sometimes problems: if the overshoot position of top */ + /* zones is under its reference position, or the opposite for bottom */ + /* zones. We must thus check everything there and correct the errors */ + if ( *blue_shoot != *blue_ref ) + { + FT_Pos ref = *blue_ref; + FT_Pos shoot = *blue_shoot; + FT_Bool over_ref = FT_BOOL( shoot > ref ); + + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref ) + *blue_shoot = *blue_ref = ( shoot + ref ) / 2; + } + + blue->flags = 0; + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + blue->flags |= AF_LATIN_BLUE_TOP; + + /* + * The following flags is used later to adjust the y and x scales + * in order to optimize the pixel grid alignment of the top of small + * letters. + */ + if ( bb == AF_LATIN_BLUE_SMALL_TOP ) + blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; + + FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot )); + } + + return; + } + + + FT_LOCAL_DEF( void ) + af_latin2_metrics_check_digits( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_UInt i; + FT_Bool started = 0, same_width = 1; + FT_Fixed advance, old_advance = 0; + + + /* check whether all ASCII digits have the same advance width; */ + /* digit `0' is 0x30 in all supported charmaps */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt glyph_index; + + + glyph_index = FT_Get_Char_Index( face, i ); + if ( glyph_index == 0 ) + continue; + + if ( FT_Get_Advance( face, glyph_index, + FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_IGNORE_TRANSFORM, + &advance ) ) + continue; + + if ( started ) + { + if ( advance != old_advance ) + { + same_width = 0; + break; + } + } + else + { + old_advance = advance; + started = 1; + } + } + + metrics->root.digits_have_same_width = same_width; + } + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_metrics_init( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Error error = AF_Err_Ok; + FT_CharMap oldmap = face->charmap; + FT_UInt ee; + + static const FT_Encoding latin_encodings[] = + { + FT_ENCODING_UNICODE, + FT_ENCODING_APPLE_ROMAN, + FT_ENCODING_ADOBE_STANDARD, + FT_ENCODING_ADOBE_LATIN_1, + FT_ENCODING_NONE /* end of list */ + }; + + + metrics->units_per_em = face->units_per_EM; + + /* do we have a latin charmap in there? */ + for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ ) + { + error = FT_Select_Charmap( face, latin_encodings[ee] ); + if ( !error ) + break; + } + + if ( !error ) + { + /* For now, compute the standard width and height from the `o'. */ + af_latin2_metrics_init_widths( metrics, face, 'o' ); + af_latin2_metrics_init_blues( metrics, face ); + af_latin2_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + return AF_Err_Ok; + } + + + static void + af_latin2_metrics_scale_dim( AF_LatinMetrics metrics, + AF_Scaler scaler, + AF_Dimension dim ) + { + FT_Fixed scale; + FT_Pos delta; + AF_LatinAxis axis; + FT_UInt nn; + + + if ( dim == AF_DIMENSION_HORZ ) + { + scale = scaler->x_scale; + delta = scaler->x_delta; + } + else + { + scale = scaler->y_scale; + delta = scaler->y_delta; + } + + axis = &metrics->axis[dim]; + + if ( axis->org_scale == scale && axis->org_delta == delta ) + return; + + axis->org_scale = scale; + axis->org_delta = delta; + + /* + * correct Y scale to optimize the alignment of the top of small + * letters to the pixel grid + */ + if ( dim == AF_DIMENSION_VERT ) + { + AF_LatinAxis vaxis = &metrics->axis[AF_DIMENSION_VERT]; + AF_LatinBlue blue = NULL; + + + for ( nn = 0; nn < vaxis->blue_count; nn++ ) + { + if ( vaxis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT ) + { + blue = &vaxis->blues[nn]; + break; + } + } + + if ( blue ) + { + FT_Pos scaled = FT_MulFix( blue->shoot.org, scaler->y_scale ); + FT_Pos fitted = ( scaled + 40 ) & ~63; + +#if 1 + if ( scaled != fitted ) + { + scale = FT_MulDiv( scale, fitted, scaled ); + FT_TRACE5(( "== scaled x-top = %.2g" + " fitted = %.2g, scaling = %.4g\n", + scaled / 64.0, fitted / 64.0, + ( fitted * 1.0 ) / scaled )); + } +#endif + } + } + + axis->scale = scale; + axis->delta = delta; + + if ( dim == AF_DIMENSION_HORZ ) + { + metrics->root.scaler.x_scale = scale; + metrics->root.scaler.x_delta = delta; + } + else + { + metrics->root.scaler.y_scale = scale; + metrics->root.scaler.y_delta = delta; + } + + /* scale the standard widths */ + for ( nn = 0; nn < axis->width_count; nn++ ) + { + AF_Width width = axis->widths + nn; + + + width->cur = FT_MulFix( width->org, scale ); + width->fit = width->cur; + } + + /* an extra-light axis corresponds to a standard width that is */ + /* smaller than 5/8 pixels */ + axis->extra_light = + (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); + + if ( dim == AF_DIMENSION_VERT ) + { + /* scale the blue zones */ + for ( nn = 0; nn < axis->blue_count; nn++ ) + { + AF_LatinBlue blue = &axis->blues[nn]; + FT_Pos dist; + + + blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; + blue->ref.fit = blue->ref.cur; + blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; + blue->shoot.fit = blue->shoot.cur; + blue->flags &= ~AF_LATIN_BLUE_ACTIVE; + + /* a blue zone is only active if it is less than 3/4 pixels tall */ + dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); + if ( dist <= 48 && dist >= -48 ) + { + FT_Pos delta1, delta2; + + delta1 = blue->shoot.org - blue->ref.org; + delta2 = delta1; + if ( delta1 < 0 ) + delta2 = -delta2; + + delta2 = FT_MulFix( delta2, scale ); + + if ( delta2 < 32 ) + delta2 = 0; + else if ( delta2 < 64 ) + delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); + else + delta2 = FT_PIX_ROUND( delta2 ); + + if ( delta1 < 0 ) + delta2 = -delta2; + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + blue->shoot.fit = blue->ref.fit + delta2; + + FT_TRACE5(( ">> activating blue zone %d:" + " ref.cur=%.2g ref.fit=%.2g" + " shoot.cur=%.2g shoot.fit=%.2g\n", + nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0, + blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); + + blue->flags |= AF_LATIN_BLUE_ACTIVE; + } + } + } + } + + + FT_LOCAL_DEF( void ) + af_latin2_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ) + { + metrics->root.scaler.render_mode = scaler->render_mode; + metrics->root.scaler.face = scaler->face; + + af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); + af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define SORT_SEGMENTS + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Memory memory = hints->memory; + FT_Error error = AF_Err_Ok; + AF_Segment segment = NULL; + AF_SegmentRec seg0; + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + AF_Direction major_dir, segment_dir; + + + FT_ZERO( &seg0 ); + seg0.score = 32000; + seg0.flags = AF_EDGE_NORMAL; + + major_dir = (AF_Direction)FT_ABS( axis->major_dir ); + segment_dir = major_dir; + + axis->num_segments = 0; + + /* set up (u,v) in each point */ + if ( dim == AF_DIMENSION_HORZ ) + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fx; + point->v = point->fy; + } + } + else + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fy; + point->v = point->fx; + } + } + + /* do each contour separately */ + for ( ; contour < contour_limit; contour++ ) + { + AF_Point point = contour[0]; + AF_Point start = point; + AF_Point last = point->prev; + + + if ( point == last ) /* skip singletons -- just in case */ + continue; + + /* already on an edge ?, backtrack to find its start */ + if ( FT_ABS( point->in_dir ) == major_dir ) + { + point = point->prev; + + while ( point->in_dir == start->in_dir ) + point = point->prev; + } + else /* otherwise, find first segment start, if any */ + { + while ( FT_ABS( point->out_dir ) != major_dir ) + { + point = point->next; + + if ( point == start ) + goto NextContour; + } + } + + start = point; + + for (;;) + { + AF_Point first; + FT_Pos min_u, min_v, max_u, max_v; + + /* we're at the start of a new segment */ + FT_ASSERT( FT_ABS( point->out_dir ) == major_dir && + point->in_dir != point->out_dir ); + first = point; + + min_u = max_u = point->u; + min_v = max_v = point->v; + + point = point->next; + + while ( point->out_dir == first->out_dir ) + { + point = point->next; + + if ( point->u < min_u ) + min_u = point->u; + + if ( point->u > max_u ) + max_u = point->u; + } + + if ( point->v < min_v ) + min_v = point->v; + + if ( point->v > max_v ) + max_v = point->v; + + /* record new segment */ + error = af_axis_hints_new_segment( axis, memory, &segment ); + if ( error ) + goto Exit; + + segment[0] = seg0; + segment->dir = first->out_dir; + segment->first = first; + segment->last = point; + segment->pos = (FT_Short)(( min_u + max_u ) >> 1); + segment->min_coord = (FT_Short) min_v; + segment->max_coord = (FT_Short) max_v; + segment->height = (FT_Short)(max_v - min_v); + + /* a segment is round if it doesn't have successive */ + /* on-curve points. */ + { + AF_Point pt = first; + AF_Point last = point; + AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + AF_Flags f1; + + + segment->flags &= ~AF_EDGE_ROUND; + + for ( ; pt != last; f0 = f1 ) + { + pt = pt->next; + f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + + if ( !f0 && !f1 ) + break; + + if ( pt == last ) + segment->flags |= AF_EDGE_ROUND; + } + } + + /* this can happen in the case of a degenerate contour + * e.g. a 2-point vertical contour + */ + if ( point == start ) + break; + + /* jump to the start of the next segment, if any */ + while ( FT_ABS(point->out_dir) != major_dir ) + { + point = point->next; + + if ( point == start ) + goto NextContour; + } + } + + NextContour: + ; + } /* contours */ + + /* now slightly increase the height of segments when this makes */ + /* sense -- this is used to better detect and ignore serifs */ + { + AF_Segment segments = axis->segments; + AF_Segment segments_end = segments + axis->num_segments; + + + for ( segment = segments; segment < segments_end; segment++ ) + { + AF_Point first = segment->first; + AF_Point last = segment->last; + AF_Point p; + FT_Pos first_v = first->v; + FT_Pos last_v = last->v; + + + if ( first == last ) + continue; + + if ( first_v < last_v ) + { + p = first->prev; + if ( p->v < first_v ) + segment->height = (FT_Short)( segment->height + + ( ( first_v - p->v ) >> 1 ) ); + + p = last->next; + if ( p->v > last_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - last_v ) >> 1 ) ); + } + else + { + p = first->prev; + if ( p->v > first_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - first_v ) >> 1 ) ); + + p = last->next; + if ( p->v < last_v ) + segment->height = (FT_Short)( segment->height + + ( ( last_v - p->v ) >> 1 ) ); + } + } + } + +#ifdef AF_SORT_SEGMENTS + /* place all segments with a negative direction to the start + * of the array, used to speed up segment linking later... + */ + { + AF_Segment segments = axis->segments; + FT_UInt count = axis->num_segments; + FT_UInt ii, jj; + + for (ii = 0; ii < count; ii++) + { + if ( segments[ii].dir > 0 ) + { + for (jj = ii+1; jj < count; jj++) + { + if ( segments[jj].dir < 0 ) + { + AF_SegmentRec tmp; + + tmp = segments[ii]; + segments[ii] = segments[jj]; + segments[jj] = tmp; + + break; + } + } + + if ( jj == count ) + break; + } + } + axis->mid_segments = ii; + } +#endif + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + af_latin2_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; +#ifdef AF_SORT_SEGMENTS + AF_Segment segment_mid = segments + axis->mid_segments; +#endif + FT_Pos len_threshold, len_score; + AF_Segment seg1, seg2; + + + len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); + if ( len_threshold == 0 ) + len_threshold = 1; + + len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 ); + +#ifdef AF_SORT_SEGMENTS + for ( seg1 = segments; seg1 < segment_mid; seg1++ ) + { + if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + continue; + + for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ ) +#else + /* now compare each segment to the others */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + /* the fake segments are introduced to hint the metrics -- */ + /* we must never link them to anything */ + if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + continue; + + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos ) +#endif + { + FT_Pos pos1 = seg1->pos; + FT_Pos pos2 = seg2->pos; + FT_Pos dist = pos2 - pos1; + + + if ( dist < 0 ) + continue; + + { + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len, score; + + + if ( min < seg2->min_coord ) + min = seg2->min_coord; + + if ( max > seg2->max_coord ) + max = seg2->max_coord; + + len = max - min; + if ( len >= len_threshold ) + { + score = dist + len_score / len; + if ( score < seg1->score ) + { + seg1->score = score; + seg1->link = seg2; + } + + if ( score < seg2->score ) + { + seg2->score = score; + seg2->link = seg1; + } + } + } + } + } +#if 0 + } +#endif + + /* now, compute the `serif' segments */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + seg2 = seg1->link; + + if ( seg2 ) + { + if ( seg2->link != seg1 ) + { + seg1->link = 0; + seg1->serif = seg2->link; + } + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Error error = AF_Err_Ok; + FT_Memory memory = hints->memory; + AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim]; + + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + + AF_Direction up_dir; + FT_Fixed scale; + FT_Pos edge_distance_threshold; + FT_Pos segment_length_threshold; + + + axis->num_edges = 0; + + scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + + up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP + : AF_DIR_RIGHT; + + /* + * We want to ignore very small (mostly serif) segments, we do that + * by ignoring those that whose length is less than a given fraction + * of the standard width. If there is no standard width, we ignore + * those that are less than a given size in pixels + * + * also, unlink serif segments that are linked to segments farther + * than 50% of the standard width + */ + if ( dim == AF_DIMENSION_HORZ ) + { + if ( laxis->width_count > 0 ) + segment_length_threshold = (laxis->standard_width * 10 ) >> 4; + else + segment_length_threshold = FT_DivFix( 64, hints->y_scale ); + } + else + segment_length_threshold = 0; + + /*********************************************************************/ + /* */ + /* We will begin by generating a sorted table of edges for the */ + /* current direction. To do so, we simply scan each segment and try */ + /* to find an edge in our table that corresponds to its position. */ + /* */ + /* If no edge is found, we create and insert a new edge in the */ + /* sorted table. Otherwise, we simply add the segment to the edge's */ + /* list which will be processed in the second step to compute the */ + /* edge's properties. */ + /* */ + /* Note that the edges table is sorted along the segment/edge */ + /* position. */ + /* */ + /*********************************************************************/ + + edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, + scale ); + if ( edge_distance_threshold > 64 / 4 ) + edge_distance_threshold = 64 / 4; + + edge_distance_threshold = FT_DivFix( edge_distance_threshold, + scale ); + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge found = 0; + FT_Int ee; + + + if ( seg->height < segment_length_threshold ) + continue; + + /* A special case for serif edges: If they are smaller than */ + /* 1.5 pixels we ignore them. */ + if ( seg->serif ) + { + FT_Pos dist = seg->serif->pos - seg->pos; + + if (dist < 0) + dist = -dist; + + if (dist >= laxis->standard_width >> 1) + { + /* unlink this serif, it is too distant from its reference stem */ + seg->serif = NULL; + } + else if ( 2*seg->height < 3 * segment_length_threshold ) + continue; + } + + /* look for an edge corresponding to the segment */ + for ( ee = 0; ee < axis->num_edges; ee++ ) + { + AF_Edge edge = axis->edges + ee; + FT_Pos dist; + + + dist = seg->pos - edge->fpos; + if ( dist < 0 ) + dist = -dist; + + if ( dist < edge_distance_threshold && edge->dir == seg->dir ) + { + found = edge; + break; + } + } + + if ( !found ) + { + AF_Edge edge; + + + /* insert a new edge in the list and */ + /* sort according to the position */ + error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, + memory, &edge ); + if ( error ) + goto Exit; + + /* add the segment to the new edge's list */ + FT_ZERO( edge ); + + edge->first = seg; + edge->last = seg; + edge->fpos = seg->pos; + edge->dir = seg->dir; + edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); + seg->edge_next = seg; + } + else + { + /* if an edge was found, simply add the segment to the edge's */ + /* list */ + seg->edge_next = found->first; + found->last->edge_next = seg; + found->last = seg; + } + } + + + /*********************************************************************/ + /* */ + /* Good, we will now compute each edge's properties according to */ + /* segments found on its position. Basically, these are: */ + /* */ + /* - edge's main direction */ + /* - stem edge, serif edge or both (which defaults to stem then) */ + /* - rounded edge, straight or both (which defaults to straight) */ + /* - link for edge */ + /* */ + /*********************************************************************/ + + /* first of all, set the `edge' field in each segment -- this is */ + /* required in order to compute edge links */ + + /* + * Note that removing this loop and setting the `edge' field of each + * segment directly in the code above slows down execution speed for + * some reasons on platforms like the Sun. + */ + { + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + + + for ( edge = edges; edge < edge_limit; edge++ ) + { + seg = edge->first; + if ( seg ) + do + { + seg->edge = edge; + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + + /* now, compute each edge properties */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Int is_round = 0; /* does it contain round segments? */ + FT_Int is_straight = 0; /* does it contain straight segments? */ +#if 0 + FT_Pos ups = 0; /* number of upwards segments */ + FT_Pos downs = 0; /* number of downwards segments */ +#endif + + + seg = edge->first; + + do + { + FT_Bool is_serif; + + + /* check for roundness of segment */ + if ( seg->flags & AF_EDGE_ROUND ) + is_round++; + else + is_straight++; + +#if 0 + /* check for segment direction */ + if ( seg->dir == up_dir ) + ups += seg->max_coord-seg->min_coord; + else + downs += seg->max_coord-seg->min_coord; +#endif + + /* check for links -- if seg->serif is set, then seg->link must */ + /* be ignored */ + is_serif = (FT_Bool)( seg->serif && + seg->serif->edge && + seg->serif->edge != edge ); + + if ( ( seg->link && seg->link->edge != NULL ) || is_serif ) + { + AF_Edge edge2; + AF_Segment seg2; + + + edge2 = edge->link; + seg2 = seg->link; + + if ( is_serif ) + { + seg2 = seg->serif; + edge2 = edge->serif; + } + + if ( edge2 ) + { + FT_Pos edge_delta; + FT_Pos seg_delta; + + + edge_delta = edge->fpos - edge2->fpos; + if ( edge_delta < 0 ) + edge_delta = -edge_delta; + + seg_delta = seg->pos - seg2->pos; + if ( seg_delta < 0 ) + seg_delta = -seg_delta; + + if ( seg_delta < edge_delta ) + edge2 = seg2->edge; + } + else + edge2 = seg2->edge; + + if ( is_serif ) + { + edge->serif = edge2; + edge2->flags |= AF_EDGE_SERIF; + } + else + edge->link = edge2; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + + /* set the round/straight flags */ + edge->flags = AF_EDGE_NORMAL; + + if ( is_round > 0 && is_round >= is_straight ) + edge->flags |= AF_EDGE_ROUND; + +#if 0 + /* set the edge's main direction */ + edge->dir = AF_DIR_NONE; + + if ( ups > downs ) + edge->dir = (FT_Char)up_dir; + + else if ( ups < downs ) + edge->dir = (FT_Char)-up_dir; + + else if ( ups == downs ) + edge->dir = 0; /* both up and down! */ +#endif + + /* gets rid of serifs if link is set */ + /* XXX: This gets rid of many unpleasant artefacts! */ + /* Example: the `c' in cour.pfa at size 13 */ + + if ( edge->serif && edge->link ) + edge->serif = 0; + } + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ) + { + FT_Error error; + + + error = af_latin2_hints_compute_segments( hints, dim ); + if ( !error ) + { + af_latin2_hints_link_segments( hints, dim ); + + error = af_latin2_hints_compute_edges( hints, dim ); + } + return error; + } + + + FT_LOCAL_DEF( void ) + af_latin2_hints_compute_blue_edges( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + AF_AxisHints axis = &hints->axis[ AF_DIMENSION_VERT ]; + AF_Edge edge = axis->edges; + AF_Edge edge_limit = edge + axis->num_edges; + AF_LatinAxis latin = &metrics->axis[ AF_DIMENSION_VERT ]; + FT_Fixed scale = latin->scale; + FT_Pos best_dist0; /* initial threshold */ + + + /* compute the initial threshold as a fraction of the EM size */ + best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); + + if ( best_dist0 > 64 / 2 ) + best_dist0 = 64 / 2; + + /* compute which blue zones are active, i.e. have their scaled */ + /* size < 3/4 pixels */ + + /* for each horizontal edge search the blue zone which is closest */ + for ( ; edge < edge_limit; edge++ ) + { + FT_Int bb; + AF_Width best_blue = NULL; + FT_Pos best_dist = best_dist0; + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + AF_LatinBlue blue = latin->blues + bb; + FT_Bool is_top_blue, is_major_dir; + + + /* skip inactive blue zones (i.e., those that are too small) */ + if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) ) + continue; + + /* if it is a top zone, check for right edges -- if it is a bottom */ + /* zone, check for left edges */ + /* */ + /* of course, that's for TrueType */ + is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); + is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + + /* if it is a top zone, the edge must be against the major */ + /* direction; if it is a bottom zone, it must be in the major */ + /* direction */ + if ( is_top_blue ^ is_major_dir ) + { + FT_Pos dist; + AF_Width compare; + + + /* if it's a rounded edge, compare it to the overshoot position */ + /* if it's a flat edge, compare it to the reference position */ + if ( edge->flags & AF_EDGE_ROUND ) + compare = &blue->shoot; + else + compare = &blue->ref; + + dist = edge->fpos - compare->org; + if (dist < 0) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = compare; + } + +#if 0 + /* now, compare it to the overshoot position if the edge is */ + /* rounded, and if the edge is over the reference position of a */ + /* top zone, or under the reference position of a bottom zone */ + if ( edge->flags & AF_EDGE_ROUND && dist != 0 ) + { + FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org ); + + + if ( is_top_blue ^ is_under_ref ) + { + blue = latin->blues + bb; + dist = edge->fpos - blue->shoot.org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = & blue->shoot; + } + } + } +#endif + } + } + + if ( best_blue ) + edge->blue_edge = best_blue; + } + } + + + static FT_Error + af_latin2_hints_init( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + FT_Render_Mode mode; + FT_UInt32 scaler_flags, other_flags; + FT_Face face = metrics->root.scaler.face; + + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); + + /* + * correct x_scale and y_scale if needed, since they may have + * been modified `af_latin2_metrics_scale_dim' above + */ + hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; + hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; + hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; + hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; + + /* compute flags depending on render mode, etc. */ + mode = metrics->root.scaler.render_mode; + +#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */ + if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) + { + metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; + } +#endif + + scaler_flags = hints->scaler_flags; + other_flags = 0; + + /* + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) + other_flags |= AF_LATIN_HINTS_HORZ_SNAP; + + /* + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) + other_flags |= AF_LATIN_HINTS_VERT_SNAP; + + /* + * We adjust stems to full pixels only if we don't use the `light' mode. + */ + if ( mode != FT_RENDER_MODE_LIGHT ) + other_flags |= AF_LATIN_HINTS_STEM_ADJUST; + + if ( mode == FT_RENDER_MODE_MONO ) + other_flags |= AF_LATIN_HINTS_MONO; + + /* + * In `light' hinting mode we disable horizontal hinting completely. + * We also do it if the face is italic. + */ + if ( mode == FT_RENDER_MODE_LIGHT || + (face->style_flags & FT_STYLE_FLAG_ITALIC) != 0 ) + scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; + + hints->scaler_flags = scaler_flags; + hints->other_flags = other_flags; + + return 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H G R I D - F I T T I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* snap a given width in scaled coordinates to one of the */ + /* current standard widths */ + + static FT_Pos + af_latin2_snap_width( AF_Width widths, + FT_Int count, + FT_Pos width ) + { + int n; + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + FT_Pos scaled; + + + for ( n = 0; n < count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + scaled = FT_PIX_ROUND( reference ); + + if ( width >= reference ) + { + if ( width < scaled + 48 ) + width = reference; + } + else + { + if ( width > scaled - 48 ) + width = reference; + } + + return width; + } + + + /* compute the snapped width of a given stem */ + + static FT_Pos + af_latin2_compute_stem_width( AF_GlyphHints hints, + AF_Dimension dim, + FT_Pos width, + AF_Edge_Flags base_flags, + AF_Edge_Flags stem_flags ) + { + AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics; + AF_LatinAxis axis = & metrics->axis[dim]; + FT_Pos dist = width; + FT_Int sign = 0; + FT_Int vertical = ( dim == AF_DIMENSION_VERT ); + + + FT_UNUSED(base_flags); + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) || + axis->extra_light ) + return width; + + if ( dist < 0 ) + { + dist = -width; + sign = 1; + } + + if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || + ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) + { + /* smooth hinting process: very lightly quantize the stem width */ + + /* leave the widths of serifs alone */ + + if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) ) + goto Done_Width; + +#if 0 + else if ( ( base_flags & AF_EDGE_ROUND ) ) + { + if ( dist < 80 ) + dist = 64; + } + else if ( dist < 56 ) + dist = 56; +#endif + if ( axis->width_count > 0 ) + { + FT_Pos delta; + + + /* compare to standard width */ + if ( axis->width_count > 0 ) + { + delta = dist - axis->widths[0].cur; + + if ( delta < 0 ) + delta = -delta; + + if ( delta < 40 ) + { + dist = axis->widths[0].cur; + if ( dist < 48 ) + dist = 48; + + goto Done_Width; + } + } + + if ( dist < 3 * 64 ) + { + delta = dist & 63; + dist &= -64; + + if ( delta < 10 ) + dist += delta; + + else if ( delta < 32 ) + dist += 10; + + else if ( delta < 54 ) + dist += 54; + + else + dist += delta; + } + else + dist = ( dist + 32 ) & ~63; + } + } + else + { + /* strong hinting process: snap the stem width to integer pixels */ + FT_Pos org_dist = dist; + + + dist = af_latin2_snap_width( axis->widths, axis->width_count, dist ); + + if ( vertical ) + { + /* in the case of vertical hinting, always round */ + /* the stem heights to integer pixels */ + + if ( dist >= 64 ) + dist = ( dist + 16 ) & ~63; + else + dist = 64; + } + else + { + if ( AF_LATIN_HINTS_DO_MONO( hints ) ) + { + /* monochrome horizontal hinting: snap widths to integer pixels */ + /* with a different threshold */ + + if ( dist < 64 ) + dist = 64; + else + dist = ( dist + 32 ) & ~63; + } + else + { + /* for horizontal anti-aliased hinting, we adopt a more subtle */ + /* approach: we strengthen small stems, round stems whose size */ + /* is between 1 and 2 pixels to an integer, otherwise nothing */ + + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + + else if ( dist < 128 ) + { + /* We only round to an integer width if the corresponding */ + /* distortion is less than 1/4 pixel. Otherwise this */ + /* makes everything worse since the diagonals, which are */ + /* not hinted, appear a lot bolder or thinner than the */ + /* vertical stems. */ + + FT_Int delta; + + + dist = ( dist + 22 ) & ~63; + delta = dist - org_dist; + if ( delta < 0 ) + delta = -delta; + + if (delta >= 16) + { + dist = org_dist; + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + } + } + else + /* round otherwise to prevent color fringes in LCD mode */ + dist = ( dist + 32 ) & ~63; + } + } + } + + Done_Width: + if ( sign ) + dist = -dist; + + return dist; + } + + + /* align one stem edge relative to the previous stem edge */ + + static void + af_latin2_align_linked_edge( AF_GlyphHints hints, + AF_Dimension dim, + AF_Edge base_edge, + AF_Edge stem_edge ) + { + FT_Pos dist = stem_edge->opos - base_edge->opos; + + FT_Pos fitted_width = af_latin2_compute_stem_width( + hints, dim, dist, + (AF_Edge_Flags)base_edge->flags, + (AF_Edge_Flags)stem_edge->flags ); + + + stem_edge->pos = base_edge->pos + fitted_width; + + FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), " + "dist was %.2f, now %.2f\n", + stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0, + stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 )); + } + + + static void + af_latin2_align_serif_edge( AF_GlyphHints hints, + AF_Edge base, + AF_Edge serif ) + { + FT_UNUSED( hints ); + + serif->pos = base->pos + (serif->opos - base->opos); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** E D G E H I N T I N G ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( void ) + af_latin2_hint_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + AF_Edge anchor = 0; + FT_Int has_serifs = 0; + FT_Pos anchor_drift = 0; + + + + FT_TRACE5(( "==== hinting %s edges =====\n", + dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" )); + + /* we begin by aligning all stems relative to the blue zone */ + /* if needed -- that's only for horizontal edges */ + + if ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_BLUES( hints ) ) + { + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Width blue; + AF_Edge edge1, edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + blue = edge->blue_edge; + edge1 = NULL; + edge2 = edge->link; + + if ( blue ) + { + edge1 = edge; + } + else if ( edge2 && edge2->blue_edge ) + { + blue = edge2->blue_edge; + edge1 = edge2; + edge2 = edge; + } + + if ( !edge1 ) + continue; + + FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), " + "was (%.2f)\n", + edge1-edges, edge1->opos / 64.0, blue->fit / 64.0, + edge1->pos / 64.0 )); + + edge1->pos = blue->fit; + edge1->flags |= AF_EDGE_DONE; + + if ( edge2 && !edge2->blue_edge ) + { + af_latin2_align_linked_edge( hints, dim, edge1, edge2 ); + edge2->flags |= AF_EDGE_DONE; + } + + if ( !anchor ) + { + anchor = edge; + + anchor_drift = (anchor->pos - anchor->opos); + if (edge2) + anchor_drift = (anchor_drift + (edge2->pos - edge2->opos)) >> 1; + } + } + } + + /* now we will align all stem edges, trying to maintain the */ + /* relative order of stems in the glyph */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + /* skip all non-stem edges */ + edge2 = edge->link; + if ( !edge2 ) + { + has_serifs++; + continue; + } + + /* now align the stem */ + + /* this should not happen, but it's better to be safe */ + if ( edge2->blue_edge ) + { + FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges )); + + af_latin2_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + continue; + } + + if ( !anchor ) + { + FT_Pos org_len, org_center, cur_len; + FT_Pos cur_pos1, error1, error2, u_off, d_off; + + + org_len = edge2->opos - edge->opos; + cur_len = af_latin2_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + if ( cur_len <= 64 ) + u_off = d_off = 32; + else + { + u_off = 38; + d_off = 26; + } + + if ( cur_len < 96 ) + { + org_center = edge->opos + ( org_len >> 1 ); + + cur_pos1 = FT_PIX_ROUND( org_center ); + + error1 = org_center - ( cur_pos1 - u_off ); + if ( error1 < 0 ) + error1 = -error1; + + error2 = org_center - ( cur_pos1 + d_off ); + if ( error2 < 0 ) + error2 = -error2; + + if ( error1 < error2 ) + cur_pos1 -= u_off; + else + cur_pos1 += d_off; + + edge->pos = cur_pos1 - cur_len / 2; + edge2->pos = edge->pos + cur_len; + } + else + edge->pos = FT_PIX_ROUND( edge->opos ); + + FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)" + " snapped to (%.2f) (%.2f)\n", + edge-edges, edge->opos / 64.0, + edge2-edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + anchor = edge; + + edge->flags |= AF_EDGE_DONE; + + af_latin2_align_linked_edge( hints, dim, edge, edge2 ); + + edge2->flags |= AF_EDGE_DONE; + + anchor_drift = ( (anchor->pos - anchor->opos) + + (edge2->pos - edge2->opos)) >> 1; + + FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 )); + } + else + { + FT_Pos org_pos, org_len, org_center, cur_center, cur_len; + FT_Pos org_left, org_right; + + + org_pos = edge->opos + anchor_drift; + org_len = edge2->opos - edge->opos; + org_center = org_pos + ( org_len >> 1 ); + + cur_len = af_latin2_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + org_left = org_pos + ((org_len - cur_len) >> 1); + org_right = org_pos + ((org_len + cur_len) >> 1); + + FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ", + org_left / 64.0, org_right / 64.0 )); + cur_center = org_center; + + if ( edge2->flags & AF_EDGE_DONE ) + { + FT_TRACE5(( "\n" )); + edge->pos = edge2->pos - cur_len; + } + else + { + /* we want to compare several displacement, and choose + * the one that increases fitness while minimizing + * distortion as well + */ + FT_Pos displacements[6], scores[6], org, fit, delta; + FT_UInt count = 0; + + /* note: don't even try to fit tiny stems */ + if ( cur_len < 32 ) + { + FT_TRACE5(( "tiny stem\n" )); + goto AlignStem; + } + + /* if the span is within a single pixel, don't touch it */ + if ( FT_PIX_FLOOR(org_left) == FT_PIX_CEIL(org_right) ) + { + FT_TRACE5(( "single pixel stem\n" )); + goto AlignStem; + } + + if (cur_len <= 96) + { + /* we want to avoid the absolute worst case which is + * when the left and right edges of the span each represent + * about 50% of the gray. we'd better want to change this + * to 25/75%, since this is much more pleasant to the eye with + * very acceptable distortion + */ + FT_Pos frac_left = (org_left) & 63; + FT_Pos frac_right = (org_right) & 63; + + if ( frac_left >= 22 && frac_left <= 42 && + frac_right >= 22 && frac_right <= 42 ) + { + org = frac_left; + fit = (org <= 32) ? 16 : 48; + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispA=%.2f (%d) ", (fit - org) / 64.0, delta )); + + org = frac_right; + fit = (org <= 32) ? 16 : 48; + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispB=%.2f (%d) ", (fit - org) / 64.0, delta )); + } + } + + /* snapping the left edge to the grid */ + org = org_left; + fit = FT_PIX_ROUND(org); + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispC=%.2f (%d) ", (fit - org) / 64.0, delta )); + + /* snapping the right edge to the grid */ + org = org_right; + fit = FT_PIX_ROUND(org); + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispD=%.2f (%d) ", (fit - org) / 64.0, delta )); + + /* now find the best displacement */ + { + FT_Pos best_score = scores[0]; + FT_Pos best_disp = displacements[0]; + FT_UInt nn; + + for (nn = 1; nn < count; nn++) + { + if (scores[nn] < best_score) + { + best_score = scores[nn]; + best_disp = displacements[nn]; + } + } + + cur_center = org_center + best_disp; + } + FT_TRACE5(( "\n" )); + } + + AlignStem: + edge->pos = cur_center - (cur_len >> 1); + edge2->pos = edge->pos + cur_len; + + FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)" + " snapped to (%.2f) and (%.2f)," + " org_len=%.2f cur_len=%.2f\n", + edge-edges, edge->opos / 64.0, + edge2-edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0, + org_len / 64.0, cur_len / 64.0 )); + + edge->flags |= AF_EDGE_DONE; + edge2->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + { + FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n", + edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 )); + edge->pos = edge[-1].pos; + } + } + } + + /* make sure that lowercase m's maintain their symmetry */ + + /* In general, lowercase m's have six vertical edges if they are sans */ + /* serif, or twelve if they are with serifs. This implementation is */ + /* based on that assumption, and seems to work very well with most */ + /* faces. However, if for a certain face this assumption is not */ + /* true, the m is just rendered like before. In addition, any stem */ + /* correction will only be applied to symmetrical glyphs (even if the */ + /* glyph is not an m), so the potential for unwanted distortion is */ + /* relatively low. */ + + /* We don't handle horizontal edges since we can't easily assure that */ + /* the third (lowest) stem aligns with the base line; it might end up */ + /* one pixel higher or lower. */ + +#if 0 + { + FT_Int n_edges = edge_limit - edges; + + + if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) + { + AF_Edge edge1, edge2, edge3; + FT_Pos dist1, dist2, span, delta; + + + if ( n_edges == 6 ) + { + edge1 = edges; + edge2 = edges + 2; + edge3 = edges + 4; + } + else + { + edge1 = edges + 1; + edge2 = edges + 5; + edge3 = edges + 9; + } + + dist1 = edge2->opos - edge1->opos; + dist2 = edge3->opos - edge2->opos; + + span = dist1 - dist2; + if ( span < 0 ) + span = -span; + + if ( span < 8 ) + { + delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); + edge3->pos -= delta; + if ( edge3->link ) + edge3->link->pos -= delta; + + /* move the serifs along with the stem */ + if ( n_edges == 12 ) + { + ( edges + 8 )->pos -= delta; + ( edges + 11 )->pos -= delta; + } + + edge3->flags |= AF_EDGE_DONE; + if ( edge3->link ) + edge3->link->flags |= AF_EDGE_DONE; + } + } + } +#endif + + if ( has_serifs || !anchor ) + { + /* + * now hint the remaining edges (serifs and single) in order + * to complete our processing + */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Pos delta; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + delta = 1000; + + if ( edge->serif ) + { + delta = edge->serif->opos - edge->opos; + if ( delta < 0 ) + delta = -delta; + } + + if ( delta < 64 + 16 ) + { + af_latin2_align_serif_edge( hints, edge->serif, edge ); + FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)" + " aligned to (%.2f)\n", + edge-edges, edge->opos / 64.0, + edge->serif - edges, edge->serif->opos / 64.0, + edge->pos / 64.0 )); + } + else if ( !anchor ) + { + FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + edge->pos = FT_PIX_ROUND( edge->opos ); + anchor = edge; + } + else + { + AF_Edge before, after; + + + for ( before = edge - 1; before >= edges; before-- ) + if ( before->flags & AF_EDGE_DONE ) + break; + + for ( after = edge + 1; after < edge_limit; after++ ) + if ( after->flags & AF_EDGE_DONE ) + break; + + if ( before >= edges && before < edge && + after < edge_limit && after > edge ) + { + if ( after->opos == before->opos ) + edge->pos = before->pos; + else + edge->pos = before->pos + + FT_MulDiv( edge->opos - before->opos, + after->pos - before->pos, + after->opos - before->opos ); + FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)" + " from %d (opos=%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0, + before - edges, before->opos / 64.0 )); + } + else + { + edge->pos = anchor->pos + + ( ( edge->opos - anchor->opos + 16 ) & ~31 ); + + FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + } + } + + edge->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + edge->pos = edge[-1].pos; + + if ( edge + 1 < edge_limit && + edge[1].flags & AF_EDGE_DONE && + edge->pos > edge[1].pos ) + edge->pos = edge[1].pos; + } + } + } + + + static FT_Error + af_latin2_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_LatinMetrics metrics ) + { + FT_Error error; + int dim; + + + error = af_glyph_hints_reload( hints, outline ); + if ( error ) + goto Exit; + + /* analyze glyph outline */ +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT || + AF_HINTS_DO_HORIZONTAL( hints ) ) +#else + if ( AF_HINTS_DO_HORIZONTAL( hints ) ) +#endif + { + error = af_latin2_hints_detect_features( hints, AF_DIMENSION_HORZ ); + if ( error ) + goto Exit; + } + + if ( AF_HINTS_DO_VERTICAL( hints ) ) + { + error = af_latin2_hints_detect_features( hints, AF_DIMENSION_VERT ); + if ( error ) + goto Exit; + + af_latin2_hints_compute_blue_edges( hints, metrics ); + } + + /* grid-fit the outline */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( ( dim == AF_DIMENSION_HORZ && + metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) ) + { + AF_WarperRec warper; + FT_Fixed scale; + FT_Pos delta; + + + af_warper_compute( &warper, hints, dim, &scale, &delta ); + af_glyph_hints_scale_dim( hints, dim, scale, delta ); + continue; + } +#endif + + if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || + ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) + { + af_latin2_hint_edges( hints, (AF_Dimension)dim ); + af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); + } + } + af_glyph_hints_save( hints, outline ); + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static const AF_Script_UniRangeRec af_latin2_uniranges[] = + { + AF_UNIRANGE_REC( 32UL, 127UL ), /* TODO: Add new Unicode ranges here! */ + AF_UNIRANGE_REC( 160UL, 255UL ), + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS(af_latin2_script_class, + AF_SCRIPT_LATIN2, + af_latin2_uniranges, + + sizeof( AF_LatinMetricsRec ), + + (AF_Script_InitMetricsFunc) af_latin2_metrics_init, + (AF_Script_ScaleMetricsFunc)af_latin2_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_latin2_hints_init, + (AF_Script_ApplyHintsFunc) af_latin2_hints_apply + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/aflatin2.h b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin2.h new file mode 100644 index 000000000..925c6214d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/aflatin2.h @@ -0,0 +1,39 @@ +/***************************************************************************/ +/* */ +/* aflatin2.h */ +/* */ +/* Auto-fitter hinting routines for latin script (specification). */ +/* */ +/* Copyright 2003, 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFLATIN2_H__ +#define __AFLATIN2_H__ + +#include "afhints.h" + + +FT_BEGIN_HEADER + + + /* the latin-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_latin2_script_class) + +/* */ + +FT_END_HEADER + +#endif /* __AFLATIN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afloader.c b/uppsrc/plugin/FT_fontsys/src/autofit/afloader.c new file mode 100644 index 000000000..966a0df73 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afloader.c @@ -0,0 +1,547 @@ +/***************************************************************************/ +/* */ +/* afloader.c */ +/* */ +/* Auto-fitter glyph loading routines (body). */ +/* */ +/* Copyright 2003-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afloader.h" +#include "afhints.h" +#include "afglobal.h" +#include "aferrors.h" + + + /* Initialize glyph loader. */ + + FT_LOCAL_DEF( FT_Error ) + af_loader_init( AF_Loader loader, + FT_Memory memory ) + { + FT_ZERO( loader ); + + af_glyph_hints_init( &loader->hints, memory ); +#ifdef FT_DEBUG_AUTOFIT + _af_debug_hints = &loader->hints; +#endif + return FT_GlyphLoader_New( memory, &loader->gloader ); + } + + + /* Reset glyph loader and compute globals if necessary. */ + + FT_LOCAL_DEF( FT_Error ) + af_loader_reset( AF_Loader loader, + FT_Face face ) + { + FT_Error error = AF_Err_Ok; + + + loader->face = face; + loader->globals = (AF_FaceGlobals)face->autohint.data; + + FT_GlyphLoader_Rewind( loader->gloader ); + + if ( loader->globals == NULL ) + { + error = af_face_globals_new( face, &loader->globals ); + if ( !error ) + { + face->autohint.data = + (FT_Pointer)loader->globals; + face->autohint.finalizer = + (FT_Generic_Finalizer)af_face_globals_free; + } + } + + return error; + } + + + /* Finalize glyph loader. */ + + FT_LOCAL_DEF( void ) + af_loader_done( AF_Loader loader ) + { + af_glyph_hints_done( &loader->hints ); + + loader->face = NULL; + loader->globals = NULL; + +#ifdef FT_DEBUG_AUTOFIT + _af_debug_hints = NULL; +#endif + FT_GlyphLoader_Done( loader->gloader ); + loader->gloader = NULL; + } + + + /* Load a single glyph component. This routine calls itself */ + /* recursively, if necessary, and does the main work of */ + /* `af_loader_load_glyph.' */ + + static FT_Error + af_loader_load_g( AF_Loader loader, + AF_Scaler scaler, + FT_UInt glyph_index, + FT_Int32 load_flags, + FT_UInt depth ) + { + FT_Error error; + FT_Face face = loader->face; + FT_GlyphLoader gloader = loader->gloader; + AF_ScriptMetrics metrics = loader->metrics; + AF_GlyphHints hints = &loader->hints; + FT_GlyphSlot slot = face->glyph; + FT_Slot_Internal internal = slot->internal; + + + error = FT_Load_Glyph( face, glyph_index, load_flags ); + if ( error ) + goto Exit; + + loader->transformed = internal->glyph_transformed; + if ( loader->transformed ) + { + FT_Matrix inverse; + + + loader->trans_matrix = internal->glyph_matrix; + loader->trans_delta = internal->glyph_delta; + + inverse = loader->trans_matrix; + FT_Matrix_Invert( &inverse ); + FT_Vector_Transform( &loader->trans_delta, &inverse ); + } + + /* set linear metrics */ + slot->linearHoriAdvance = slot->metrics.horiAdvance; + slot->linearVertAdvance = slot->metrics.vertAdvance; + + switch ( slot->format ) + { + case FT_GLYPH_FORMAT_OUTLINE: + /* translate the loaded glyph when an internal transform is needed */ + if ( loader->transformed ) + FT_Outline_Translate( &slot->outline, + loader->trans_delta.x, + loader->trans_delta.y ); + + /* copy the outline points in the loader's current */ + /* extra points which is used to keep original glyph coordinates */ + error = FT_GLYPHLOADER_CHECK_POINTS( gloader, + slot->outline.n_points + 4, + slot->outline.n_contours ); + if ( error ) + goto Exit; + + FT_ARRAY_COPY( gloader->current.outline.points, + slot->outline.points, + slot->outline.n_points ); + + FT_ARRAY_COPY( gloader->current.outline.contours, + slot->outline.contours, + slot->outline.n_contours ); + + FT_ARRAY_COPY( gloader->current.outline.tags, + slot->outline.tags, + slot->outline.n_points ); + + gloader->current.outline.n_points = slot->outline.n_points; + gloader->current.outline.n_contours = slot->outline.n_contours; + + /* compute original horizontal phantom points (and ignore */ + /* vertical ones) */ + loader->pp1.x = hints->x_delta; + loader->pp1.y = hints->y_delta; + loader->pp2.x = FT_MulFix( slot->metrics.horiAdvance, + hints->x_scale ) + hints->x_delta; + loader->pp2.y = hints->y_delta; + + /* be sure to check for spacing glyphs */ + if ( slot->outline.n_points == 0 ) + goto Hint_Metrics; + + /* now load the slot image into the auto-outline and run the */ + /* automatic hinting process */ + if ( metrics->clazz->script_hints_apply ) + metrics->clazz->script_hints_apply( hints, + &gloader->current.outline, + metrics ); + + /* we now need to adjust the metrics according to the change in */ + /* width/positioning that occurred during the hinting process */ + if ( scaler->render_mode != FT_RENDER_MODE_LIGHT ) + { + FT_Pos old_rsb, old_lsb, new_lsb; + FT_Pos pp1x_uh, pp2x_uh; + AF_AxisHints axis = &hints->axis[AF_DIMENSION_HORZ]; + AF_Edge edge1 = axis->edges; /* leftmost edge */ + AF_Edge edge2 = edge1 + + axis->num_edges - 1; /* rightmost edge */ + + + if ( axis->num_edges > 1 && AF_HINTS_DO_ADVANCE( hints ) ) + { + old_rsb = loader->pp2.x - edge2->opos; + old_lsb = edge1->opos; + new_lsb = edge1->pos; + + /* remember unhinted values to later account */ + /* for rounding errors */ + + pp1x_uh = new_lsb - old_lsb; + pp2x_uh = edge2->pos + old_rsb; + + /* prefer too much space over too little space */ + /* for very small sizes */ + + if ( old_lsb < 24 ) + pp1x_uh -= 8; + + if ( old_rsb < 24 ) + pp2x_uh += 8; + + loader->pp1.x = FT_PIX_ROUND( pp1x_uh ); + loader->pp2.x = FT_PIX_ROUND( pp2x_uh ); + + if ( loader->pp1.x >= new_lsb && old_lsb > 0 ) + loader->pp1.x -= 64; + + if ( loader->pp2.x <= edge2->pos && old_rsb > 0 ) + loader->pp2.x += 64; + + slot->lsb_delta = loader->pp1.x - pp1x_uh; + slot->rsb_delta = loader->pp2.x - pp2x_uh; + } + else + { + FT_Pos pp1x = loader->pp1.x; + FT_Pos pp2x = loader->pp2.x; + + + loader->pp1.x = FT_PIX_ROUND( pp1x ); + loader->pp2.x = FT_PIX_ROUND( pp2x ); + + slot->lsb_delta = loader->pp1.x - pp1x; + slot->rsb_delta = loader->pp2.x - pp2x; + } + } + else + { + FT_Pos pp1x = loader->pp1.x; + FT_Pos pp2x = loader->pp2.x; + + + loader->pp1.x = FT_PIX_ROUND( pp1x + hints->xmin_delta ); + loader->pp2.x = FT_PIX_ROUND( pp2x + hints->xmax_delta ); + + slot->lsb_delta = loader->pp1.x - pp1x; + slot->rsb_delta = loader->pp2.x - pp2x; + } + + /* good, we simply add the glyph to our loader's base */ + FT_GlyphLoader_Add( gloader ); + break; + + case FT_GLYPH_FORMAT_COMPOSITE: + { + FT_UInt nn, num_subglyphs = slot->num_subglyphs; + FT_UInt num_base_subgs, start_point; + FT_SubGlyph subglyph; + + + start_point = gloader->base.outline.n_points; + + /* first of all, copy the subglyph descriptors in the glyph loader */ + error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs ); + if ( error ) + goto Exit; + + FT_ARRAY_COPY( gloader->current.subglyphs, + slot->subglyphs, + num_subglyphs ); + + gloader->current.num_subglyphs = num_subglyphs; + num_base_subgs = gloader->base.num_subglyphs; + + /* now read each subglyph independently */ + for ( nn = 0; nn < num_subglyphs; nn++ ) + { + FT_Vector pp1, pp2; + FT_Pos x, y; + FT_UInt num_points, num_new_points, num_base_points; + + + /* gloader.current.subglyphs can change during glyph loading due */ + /* to re-allocation -- we must recompute the current subglyph on */ + /* each iteration */ + subglyph = gloader->base.subglyphs + num_base_subgs + nn; + + pp1 = loader->pp1; + pp2 = loader->pp2; + + num_base_points = gloader->base.outline.n_points; + + error = af_loader_load_g( loader, scaler, subglyph->index, + load_flags, depth + 1 ); + if ( error ) + goto Exit; + + /* recompute subglyph pointer */ + subglyph = gloader->base.subglyphs + num_base_subgs + nn; + + if ( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS ) + { + pp1 = loader->pp1; + pp2 = loader->pp2; + } + else + { + loader->pp1 = pp1; + loader->pp2 = pp2; + } + + num_points = gloader->base.outline.n_points; + num_new_points = num_points - num_base_points; + + /* now perform the transformation required for this subglyph */ + + if ( subglyph->flags & ( FT_SUBGLYPH_FLAG_SCALE | + FT_SUBGLYPH_FLAG_XY_SCALE | + FT_SUBGLYPH_FLAG_2X2 ) ) + { + FT_Vector* cur = gloader->base.outline.points + + num_base_points; + FT_Vector* limit = cur + num_new_points; + + + for ( ; cur < limit; cur++ ) + FT_Vector_Transform( cur, &subglyph->transform ); + } + + /* apply offset */ + + if ( !( subglyph->flags & FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES ) ) + { + FT_Int k = subglyph->arg1; + FT_UInt l = subglyph->arg2; + FT_Vector* p1; + FT_Vector* p2; + + + if ( start_point + k >= num_base_points || + l >= (FT_UInt)num_new_points ) + { + error = AF_Err_Invalid_Composite; + goto Exit; + } + + l += num_base_points; + + /* for now, only use the current point coordinates; */ + /* we may consider another approach in the near future */ + p1 = gloader->base.outline.points + start_point + k; + p2 = gloader->base.outline.points + start_point + l; + + x = p1->x - p2->x; + y = p1->y - p2->y; + } + else + { + x = FT_MulFix( subglyph->arg1, hints->x_scale ) + hints->x_delta; + y = FT_MulFix( subglyph->arg2, hints->y_scale ) + hints->y_delta; + + x = FT_PIX_ROUND( x ); + y = FT_PIX_ROUND( y ); + } + + { + FT_Outline dummy = gloader->base.outline; + + + dummy.points += num_base_points; + dummy.n_points = (short)num_new_points; + + FT_Outline_Translate( &dummy, x, y ); + } + } + } + break; + + default: + /* we don't support other formats (yet?) */ + error = AF_Err_Unimplemented_Feature; + } + + Hint_Metrics: + if ( depth == 0 ) + { + FT_BBox bbox; + FT_Vector vvector; + + + vvector.x = slot->metrics.vertBearingX - slot->metrics.horiBearingX; + vvector.y = slot->metrics.vertBearingY - slot->metrics.horiBearingY; + vvector.x = FT_MulFix( vvector.x, metrics->scaler.x_scale ); + vvector.y = FT_MulFix( vvector.y, metrics->scaler.y_scale ); + + /* transform the hinted outline if needed */ + if ( loader->transformed ) + { + FT_Outline_Transform( &gloader->base.outline, &loader->trans_matrix ); + FT_Vector_Transform( &vvector, &loader->trans_matrix ); + } +#if 1 + /* we must translate our final outline by -pp1.x and compute */ + /* the new metrics */ + if ( loader->pp1.x ) + FT_Outline_Translate( &gloader->base.outline, -loader->pp1.x, 0 ); +#endif + FT_Outline_Get_CBox( &gloader->base.outline, &bbox ); + + bbox.xMin = FT_PIX_FLOOR( bbox.xMin ); + bbox.yMin = FT_PIX_FLOOR( bbox.yMin ); + bbox.xMax = FT_PIX_CEIL( bbox.xMax ); + bbox.yMax = FT_PIX_CEIL( bbox.yMax ); + + slot->metrics.width = bbox.xMax - bbox.xMin; + slot->metrics.height = bbox.yMax - bbox.yMin; + slot->metrics.horiBearingX = bbox.xMin; + slot->metrics.horiBearingY = bbox.yMax; + + slot->metrics.vertBearingX = FT_PIX_FLOOR( bbox.xMin + vvector.x ); + slot->metrics.vertBearingY = FT_PIX_FLOOR( bbox.yMax + vvector.y ); + + /* for mono-width fonts (like Andale, Courier, etc.) we need */ + /* to keep the original rounded advance width; ditto for */ + /* digits if all have the same advance width */ +#if 0 + if ( !FT_IS_FIXED_WIDTH( slot->face ) ) + slot->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; + else + slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance, + x_scale ); +#else + if ( FT_IS_FIXED_WIDTH( slot->face ) || + ( af_face_globals_is_digit( loader->globals, glyph_index ) && + metrics->digits_have_same_width ) ) + { + slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance, + metrics->scaler.x_scale ); + + /* Set delta values to 0. Otherwise code that uses them is */ + /* going to ruin the fixed advance width. */ + slot->lsb_delta = 0; + slot->rsb_delta = 0; + } + else + { + /* non-spacing glyphs must stay as-is */ + if ( slot->metrics.horiAdvance ) + slot->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; + } +#endif + + slot->metrics.vertAdvance = FT_MulFix( slot->metrics.vertAdvance, + metrics->scaler.y_scale ); + + slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance ); + slot->metrics.vertAdvance = FT_PIX_ROUND( slot->metrics.vertAdvance ); + + /* now copy outline into glyph slot */ + FT_GlyphLoader_Rewind( internal->loader ); + error = FT_GlyphLoader_CopyPoints( internal->loader, gloader ); + if ( error ) + goto Exit; + + slot->outline = internal->loader->base.outline; + slot->format = FT_GLYPH_FORMAT_OUTLINE; + } + + Exit: + return error; + } + + + /* Load a glyph. */ + + FT_LOCAL_DEF( FT_Error ) + af_loader_load_glyph( AF_Loader loader, + FT_Face face, + FT_UInt gindex, + FT_UInt32 load_flags ) + { + FT_Error error; + FT_Size size = face->size; + AF_ScalerRec scaler; + + + if ( !size ) + return AF_Err_Invalid_Argument; + + FT_ZERO( &scaler ); + + scaler.face = face; + scaler.x_scale = size->metrics.x_scale; + scaler.x_delta = 0; /* XXX: TODO: add support for sub-pixel hinting */ + scaler.y_scale = size->metrics.y_scale; + scaler.y_delta = 0; /* XXX: TODO: add support for sub-pixel hinting */ + + scaler.render_mode = FT_LOAD_TARGET_MODE( load_flags ); + scaler.flags = 0; /* XXX: fix this */ + + error = af_loader_reset( loader, face ); + if ( !error ) + { + AF_ScriptMetrics metrics; + FT_UInt options = 0; + + +#ifdef FT_OPTION_AUTOFIT2 + /* XXX: undocumented hook to activate the latin2 hinter */ + if ( load_flags & ( 1UL << 20 ) ) + options = 2; +#endif + + error = af_face_globals_get_metrics( loader->globals, gindex, + options, &metrics ); + if ( !error ) + { + loader->metrics = metrics; + + if ( metrics->clazz->script_metrics_scale ) + metrics->clazz->script_metrics_scale( metrics, &scaler ); + else + metrics->scaler = scaler; + + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_IGNORE_TRANSFORM; + load_flags &= ~FT_LOAD_RENDER; + + if ( metrics->clazz->script_hints_init ) + { + error = metrics->clazz->script_hints_init( &loader->hints, + metrics ); + if ( error ) + goto Exit; + } + + error = af_loader_load_g( loader, &scaler, gindex, load_flags, 0 ); + } + } + Exit: + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afloader.h b/uppsrc/plugin/FT_fontsys/src/autofit/afloader.h new file mode 100644 index 000000000..3f91e1a22 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afloader.h @@ -0,0 +1,73 @@ +/***************************************************************************/ +/* */ +/* afloader.h */ +/* */ +/* Auto-fitter glyph loading routines (specification). */ +/* */ +/* Copyright 2003-2005, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFLOADER_H__ +#define __AFLOADER_H__ + +#include "afhints.h" +#include "afglobal.h" + + +FT_BEGIN_HEADER + + typedef struct AF_LoaderRec_ + { + FT_Face face; /* current face */ + AF_FaceGlobals globals; /* current face globals */ + FT_GlyphLoader gloader; /* glyph loader */ + AF_GlyphHintsRec hints; + AF_ScriptMetrics metrics; + FT_Bool transformed; + FT_Matrix trans_matrix; + FT_Vector trans_delta; + FT_Vector pp1; + FT_Vector pp2; + /* we don't handle vertical phantom points */ + + } AF_LoaderRec, *AF_Loader; + + + FT_LOCAL( FT_Error ) + af_loader_init( AF_Loader loader, + FT_Memory memory ); + + + FT_LOCAL( FT_Error ) + af_loader_reset( AF_Loader loader, + FT_Face face ); + + + FT_LOCAL( void ) + af_loader_done( AF_Loader loader ); + + + FT_LOCAL( FT_Error ) + af_loader_load_glyph( AF_Loader loader, + FT_Face face, + FT_UInt gindex, + FT_UInt32 load_flags ); + +/* */ + + +FT_END_HEADER + +#endif /* __AFLOADER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afmodule.c b/uppsrc/plugin/FT_fontsys/src/autofit/afmodule.c new file mode 100644 index 000000000..20b621838 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afmodule.c @@ -0,0 +1,93 @@ +/***************************************************************************/ +/* */ +/* afmodule.c */ +/* */ +/* Auto-fitter module implementation (body). */ +/* */ +/* Copyright 2003-2006, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afmodule.h" +#include "afloader.h" +#include "afpic.h" + +#ifdef FT_DEBUG_AUTOFIT + int _af_debug_disable_horz_hints; + int _af_debug_disable_vert_hints; + int _af_debug_disable_blue_hints; + void* _af_debug_hints; +#endif + +#include FT_INTERNAL_OBJECTS_H + + + typedef struct FT_AutofitterRec_ + { + FT_ModuleRec root; + AF_LoaderRec loader[1]; + + } FT_AutofitterRec, *FT_Autofitter; + + + FT_CALLBACK_DEF( FT_Error ) + af_autofitter_init( FT_Autofitter module ) + { + return af_loader_init( module->loader, module->root.library->memory ); + } + + + FT_CALLBACK_DEF( void ) + af_autofitter_done( FT_Autofitter module ) + { + af_loader_done( module->loader ); + } + + + FT_CALLBACK_DEF( FT_Error ) + af_autofitter_load_glyph( FT_Autofitter module, + FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_UNUSED( size ); + + return af_loader_load_glyph( module->loader, slot->face, + glyph_index, load_flags ); + } + + + FT_DEFINE_AUTOHINTER_SERVICE( + af_autofitter_service, + NULL, + NULL, + NULL, + (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph ) + + FT_DEFINE_MODULE( + autofit_module_class, + + FT_MODULE_HINTER, + sizeof ( FT_AutofitterRec ), + + "autofitter", + 0x10000L, /* version 1.0 of the autofitter */ + 0x20000L, /* requires FreeType 2.0 or above */ + + (const void*)&AF_AF_AUTOFITTER_SERVICE_GET, + + (FT_Module_Constructor)af_autofitter_init, + (FT_Module_Destructor) af_autofitter_done, + (FT_Module_Requester) NULL ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afmodule.h b/uppsrc/plugin/FT_fontsys/src/autofit/afmodule.h new file mode 100644 index 000000000..480a0f246 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afmodule.h @@ -0,0 +1,37 @@ +/***************************************************************************/ +/* */ +/* afmodule.h */ +/* */ +/* Auto-fitter module implementation (specification). */ +/* */ +/* Copyright 2003, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFMODULE_H__ +#define __AFMODULE_H__ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +FT_DECLARE_MODULE(autofit_module_class) + + +FT_END_HEADER + +#endif /* __AFMODULE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afpic.c b/uppsrc/plugin/FT_fontsys/src/autofit/afpic.c new file mode 100644 index 000000000..abd0f8473 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afpic.c @@ -0,0 +1,106 @@ +/***************************************************************************/ +/* */ +/* afpic.c */ +/* */ +/* The FreeType position independent code services for autofit module. */ +/* */ +/* Copyright 2009, 2010, 2011 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "afpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from afmodule.c */ + void FT_Init_Class_af_autofitter_service( FT_Library, + FT_AutoHinter_ServiceRec* ); + + /* forward declaration of PIC init functions from script classes */ +#include "aflatin.h" +#include "aflatin2.h" +#include "afcjk.h" +#include "afdummy.h" +#include "afindic.h" + + void + autofit_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->autofit ) + { + FT_FREE( pic_container->autofit ); + pic_container->autofit = NULL; + } + } + + + FT_Error + autofit_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_UInt ss; + FT_Error error = AF_Err_Ok; + AFModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->autofit = container; + + /* initialize pointer table - */ + /* this is how the module usually expects this data */ + for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ ) + { + container->af_script_classes[ss] = + &container->af_script_classes_rec[ss]; + } + container->af_script_classes[AF_SCRIPT_CLASSES_COUNT - 1] = NULL; + + /* add call to initialization function when you add new scripts */ + ss = 0; + FT_Init_Class_af_dummy_script_class( + &container->af_script_classes_rec[ss++] ); +#ifdef FT_OPTION_AUTOFIT2 + FT_Init_Class_af_latin2_script_class( + &container->af_script_classes_rec[ss++] ); +#endif + FT_Init_Class_af_latin_script_class( + &container->af_script_classes_rec[ss++] ); + FT_Init_Class_af_cjk_script_class( + &container->af_script_classes_rec[ss++] ); + FT_Init_Class_af_indic_script_class( + &container->af_script_classes_rec[ss++] ); + + FT_Init_Class_af_autofitter_service( + library, &container->af_autofitter_service ); + +/* Exit: */ + + if ( error ) + autofit_module_class_pic_free( library ); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afpic.h b/uppsrc/plugin/FT_fontsys/src/autofit/afpic.h new file mode 100644 index 000000000..c1632e76e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afpic.h @@ -0,0 +1,69 @@ +/***************************************************************************/ +/* */ +/* afpic.h */ +/* */ +/* The FreeType position independent code services for autofit module. */ +/* */ +/* Copyright 2009, 2011 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFPIC_H__ +#define __AFPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC + +#define AF_SCRIPT_CLASSES_GET af_script_classes +#define AF_AF_AUTOFITTER_SERVICE_GET af_autofitter_service + +#else /* FT_CONFIG_OPTION_PIC */ + +#include "aftypes.h" + + /* increase these when you add new scripts, */ + /* and update autofit_module_class_pic_init */ +#ifdef FT_OPTION_AUTOFIT2 +#define AF_SCRIPT_CLASSES_COUNT 6 +#else +#define AF_SCRIPT_CLASSES_COUNT 5 +#endif +#define AF_SCRIPT_CLASSES_REC_COUNT ( AF_SCRIPT_CLASSES_COUNT - 1 ) + + typedef struct AFModulePIC_ + { + AF_ScriptClass af_script_classes[AF_SCRIPT_CLASSES_COUNT]; + AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT]; + FT_AutoHinter_ServiceRec af_autofitter_service; + + } AFModulePIC; + +#define GET_PIC( lib ) \ + ( (AFModulePIC*)((lib)->pic_container.autofit) ) +#define AF_SCRIPT_CLASSES_GET \ + ( GET_PIC( FT_FACE_LIBRARY(globals->face) )->af_script_classes ) +#define AF_AF_AUTOFITTER_SERVICE_GET \ + ( GET_PIC( library )->af_autofitter_service ) + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __AFPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/aftypes.h b/uppsrc/plugin/FT_fontsys/src/autofit/aftypes.h new file mode 100644 index 000000000..b9740a0a4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/aftypes.h @@ -0,0 +1,370 @@ +/***************************************************************************/ +/* */ +/* aftypes.h */ +/* */ +/* Auto-fitter types (specification only). */ +/* */ +/* Copyright 2003-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /************************************************************************* + * + * The auto-fitter is a complete rewrite of the old auto-hinter. + * Its main feature is the ability to differentiate between different + * scripts in order to apply language-specific rules. + * + * The code has also been compartmentized into several entities that + * should make algorithmic experimentation easier than with the old + * code. + * + * Finally, we get rid of the Catharon license, since this code is + * released under the FreeType one. + * + *************************************************************************/ + + +#ifndef __AFTYPES_H__ +#define __AFTYPES_H__ + +#include <freetype/ft2build.h> + +#include FT_FREETYPE_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** D E B U G G I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#ifdef FT_DEBUG_AUTOFIT + +#include FT_CONFIG_STANDARD_LIBRARY_H + +extern int _af_debug_disable_horz_hints; +extern int _af_debug_disable_vert_hints; +extern int _af_debug_disable_blue_hints; +extern void* _af_debug_hints; + +#endif /* FT_DEBUG_AUTOFIT */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** U T I L I T Y S T U F F *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct AF_WidthRec_ + { + FT_Pos org; /* original position/width in font units */ + FT_Pos cur; /* current/scaled position/width in device sub-pixels */ + FT_Pos fit; /* current/fitted position/width in device sub-pixels */ + + } AF_WidthRec, *AF_Width; + + + FT_LOCAL( void ) + af_sort_pos( FT_UInt count, + FT_Pos* table ); + + FT_LOCAL( void ) + af_sort_widths( FT_UInt count, + AF_Width widths ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** A N G L E T Y P E S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * The auto-fitter doesn't need a very high angular accuracy; + * this allows us to speed up some computations considerably with a + * light Cordic algorithm (see afangles.c). + */ + + typedef FT_Int AF_Angle; + + +#define AF_ANGLE_PI 256 +#define AF_ANGLE_2PI ( AF_ANGLE_PI * 2 ) +#define AF_ANGLE_PI2 ( AF_ANGLE_PI / 2 ) +#define AF_ANGLE_PI4 ( AF_ANGLE_PI / 4 ) + + +#if 0 + /* + * compute the angle of a given 2-D vector + */ + FT_LOCAL( AF_Angle ) + af_angle_atan( FT_Pos dx, + FT_Pos dy ); + + + /* + * compute `angle2 - angle1'; the result is always within + * the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1] + */ + FT_LOCAL( AF_Angle ) + af_angle_diff( AF_Angle angle1, + AF_Angle angle2 ); +#endif /* 0 */ + + +#define AF_ANGLE_DIFF( result, angle1, angle2 ) \ + FT_BEGIN_STMNT \ + AF_Angle _delta = (angle2) - (angle1); \ + \ + \ + _delta %= AF_ANGLE_2PI; \ + if ( _delta < 0 ) \ + _delta += AF_ANGLE_2PI; \ + \ + if ( _delta > AF_ANGLE_PI ) \ + _delta -= AF_ANGLE_2PI; \ + \ + result = _delta; \ + FT_END_STMNT + + + /* opaque handle to glyph-specific hints -- see `afhints.h' for more + * details + */ + typedef struct AF_GlyphHintsRec_* AF_GlyphHints; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S C A L E R S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * A scaler models the target pixel device that will receive the + * auto-hinted glyph image. + */ + + typedef enum AF_ScalerFlags_ + { + AF_SCALER_FLAG_NO_HORIZONTAL = 1, /* disable horizontal hinting */ + AF_SCALER_FLAG_NO_VERTICAL = 2, /* disable vertical hinting */ + AF_SCALER_FLAG_NO_ADVANCE = 4 /* disable advance hinting */ + + } AF_ScalerFlags; + + + typedef struct AF_ScalerRec_ + { + FT_Face face; /* source font face */ + FT_Fixed x_scale; /* from font units to 1/64th device pixels */ + FT_Fixed y_scale; /* from font units to 1/64th device pixels */ + FT_Pos x_delta; /* in 1/64th device pixels */ + FT_Pos y_delta; /* in 1/64th device pixels */ + FT_Render_Mode render_mode; /* monochrome, anti-aliased, LCD, etc. */ + FT_UInt32 flags; /* additional control flags, see above */ + + } AF_ScalerRec, *AF_Scaler; + + +#define AF_SCALER_EQUAL_SCALES( a, b ) \ + ( (a)->x_scale == (b)->x_scale && \ + (a)->y_scale == (b)->y_scale && \ + (a)->x_delta == (b)->x_delta && \ + (a)->y_delta == (b)->y_delta ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S C R I P T S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * The list of known scripts. Each different script corresponds to the + * following information: + * + * - A set of Unicode ranges to test whether the face supports the + * script. + * + * - A specific global analyzer that will compute global metrics + * specific to the script. + * + * - A specific glyph analyzer that will compute segments and + * edges for each glyph covered by the script. + * + * - A specific grid-fitting algorithm that will distort the + * scaled glyph outline according to the results of the glyph + * analyzer. + * + * Note that a given analyzer and/or grid-fitting algorithm can be + * used by more than one script. + */ + + typedef enum AF_Script_ + { + AF_SCRIPT_NONE = 0, + AF_SCRIPT_LATIN = 1, + AF_SCRIPT_CJK = 2, + AF_SCRIPT_INDIC = 3, +#ifdef FT_OPTION_AUTOFIT2 + AF_SCRIPT_LATIN2, +#endif + + /* add new scripts here. Don't forget to update the list in */ + /* `afglobal.c'. */ + + AF_SCRIPT_MAX /* do not remove */ + + } AF_Script; + + + typedef struct AF_ScriptClassRec_ const* AF_ScriptClass; + + typedef struct AF_ScriptMetricsRec_ + { + AF_ScriptClass clazz; + AF_ScalerRec scaler; + FT_Bool digits_have_same_width; + + } AF_ScriptMetricsRec, *AF_ScriptMetrics; + + + /* This function parses an FT_Face to compute global metrics for + * a specific script. + */ + typedef FT_Error + (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics metrics, + FT_Face face ); + + typedef void + (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics metrics, + AF_Scaler scaler ); + + typedef void + (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics metrics ); + + + typedef FT_Error + (*AF_Script_InitHintsFunc)( AF_GlyphHints hints, + AF_ScriptMetrics metrics ); + + typedef void + (*AF_Script_ApplyHintsFunc)( AF_GlyphHints hints, + FT_Outline* outline, + AF_ScriptMetrics metrics ); + + + typedef struct AF_Script_UniRangeRec_ + { + FT_UInt32 first; + FT_UInt32 last; + + } AF_Script_UniRangeRec; + +#define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) } + + typedef const AF_Script_UniRangeRec *AF_Script_UniRange; + + + typedef struct AF_ScriptClassRec_ + { + AF_Script script; + AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */ + + FT_Offset script_metrics_size; + AF_Script_InitMetricsFunc script_metrics_init; + AF_Script_ScaleMetricsFunc script_metrics_scale; + AF_Script_DoneMetricsFunc script_metrics_done; + + AF_Script_InitHintsFunc script_hints_init; + AF_Script_ApplyHintsFunc script_hints_apply; + + } AF_ScriptClassRec; + + + /* Declare and define vtables for classes */ +#ifndef FT_CONFIG_OPTION_PIC + +#define AF_DECLARE_SCRIPT_CLASS( script_class ) \ + FT_CALLBACK_TABLE const AF_ScriptClassRec \ + script_class; + +#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, m_size, \ + m_init, m_scale, m_done, h_init, h_apply ) \ + FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec \ + script_class = \ + { \ + script_, \ + ranges, \ + \ + m_size, \ + \ + m_init, \ + m_scale, \ + m_done, \ + \ + h_init, \ + h_apply \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define AF_DECLARE_SCRIPT_CLASS( script_class ) \ + FT_LOCAL( void ) \ + FT_Init_Class_##script_class( AF_ScriptClassRec* ac ); + +#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, m_size, \ + m_init, m_scale, m_done, h_init, h_apply ) \ + FT_LOCAL_DEF( void ) \ + FT_Init_Class_##script_class( AF_ScriptClassRec* ac ) \ + { \ + ac->script = script_; \ + ac->script_uni_ranges = ranges; \ + \ + ac->script_metrics_size = m_size; \ + \ + ac->script_metrics_init = m_init; \ + ac->script_metrics_scale = m_scale; \ + ac->script_metrics_done = m_done; \ + \ + ac->script_hints_init = h_init; \ + ac->script_hints_apply = h_apply; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* */ + +FT_END_HEADER + +#endif /* __AFTYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afwarp.c b/uppsrc/plugin/FT_fontsys/src/autofit/afwarp.c new file mode 100644 index 000000000..d0d4850bd --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afwarp.c @@ -0,0 +1,374 @@ +/***************************************************************************/ +/* */ +/* afwarp.c */ +/* */ +/* Auto-fitter warping algorithm (body). */ +/* */ +/* Copyright 2006, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * The idea of the warping code is to slightly scale and shift a glyph + * within a single dimension so that as much of its segments are aligned + * (more or less) on the grid. To find out the optimal scaling and + * shifting value, various parameter combinations are tried and scored. + */ + +#include "afwarp.h" + +#ifdef AF_CONFIG_OPTION_USE_WARPER + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_afwarp + + + /* The weights cover the range 0/64 - 63/64 of a pixel. Obviously, */ + /* values around a half pixel (which means exactly between two grid */ + /* lines) gets the worst weight. */ +#if 1 + static const AF_WarpScore + af_warper_weights[64] = + { + 35, 32, 30, 25, 20, 15, 12, 10, 5, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, -1, -2, -5, -8,-10,-10,-20,-20,-30,-30, + + -30,-30,-20,-20,-10,-10, -8, -5, -2, -1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, 5, 10, 12, 15, 20, 25, 30, 32, + }; +#else + static const AF_WarpScore + af_warper_weights[64] = + { + 30, 20, 10, 5, 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, -1, -2, -2, -5, -5,-10,-10,-15,-20, + + -20,-15,-15,-10,-10, -5, -5, -2, -2, -1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 10, 20, + }; +#endif + + + /* Score segments for a given `scale' and `delta' in the range */ + /* `xx1' to `xx2', and store the best result in `warper'. If */ + /* the new best score is equal to the old one, prefer the */ + /* value with a smaller distortion (around `base_distort'). */ + + static void + af_warper_compute_line_best( AF_Warper warper, + FT_Fixed scale, + FT_Pos delta, + FT_Pos xx1, + FT_Pos xx2, + AF_WarpScore base_distort, + AF_Segment segments, + FT_UInt num_segments ) + { + FT_Int idx_min, idx_max, idx0; + FT_UInt nn; + AF_WarpScore scores[65]; + + + for ( nn = 0; nn < 65; nn++ ) + scores[nn] = 0; + + idx0 = xx1 - warper->t1; + + /* compute minimum and maximum indices */ + { + FT_Pos xx1min = warper->x1min; + FT_Pos xx1max = warper->x1max; + FT_Pos w = xx2 - xx1; + + + if ( xx1min + w < warper->x2min ) + xx1min = warper->x2min - w; + + xx1max = warper->x1max; + if ( xx1max + w > warper->x2max ) + xx1max = warper->x2max - w; + + idx_min = xx1min - warper->t1; + idx_max = xx1max - warper->t1; + + if ( idx_min < 0 || idx_min > idx_max || idx_max > 64 ) + { + FT_TRACE5(( "invalid indices:\n" + " min=%d max=%d, xx1=%ld xx2=%ld,\n" + " x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n", + idx_min, idx_max, xx1, xx2, + warper->x1min, warper->x1max, + warper->x2min, warper->x2max )); + return; + } + } + + for ( nn = 0; nn < num_segments; nn++ ) + { + FT_Pos len = segments[nn].max_coord - segments[nn].min_coord; + FT_Pos y0 = FT_MulFix( segments[nn].pos, scale ) + delta; + FT_Pos y = y0 + ( idx_min - idx0 ); + FT_Int idx; + + + /* score the length of the segments for the given range */ + for ( idx = idx_min; idx <= idx_max; idx++, y++ ) + scores[idx] += af_warper_weights[y & 63] * len; + } + + /* find best score */ + { + FT_Int idx; + + + for ( idx = idx_min; idx <= idx_max; idx++ ) + { + AF_WarpScore score = scores[idx]; + AF_WarpScore distort = base_distort + ( idx - idx0 ); + + + if ( score > warper->best_score || + ( score == warper->best_score && + distort < warper->best_distort ) ) + { + warper->best_score = score; + warper->best_distort = distort; + warper->best_scale = scale; + warper->best_delta = delta + ( idx - idx0 ); + } + } + } + } + + + /* Compute optimal scaling and delta values for a given glyph and */ + /* dimension. */ + + FT_LOCAL_DEF( void ) + af_warper_compute( AF_Warper warper, + AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed *a_scale, + FT_Pos *a_delta ) + { + AF_AxisHints axis; + AF_Point points; + + FT_Fixed org_scale; + FT_Pos org_delta; + + FT_UInt nn, num_points, num_segments; + FT_Int X1, X2; + FT_Int w; + + AF_WarpScore base_distort; + AF_Segment segments; + + + /* get original scaling transformation */ + if ( dim == AF_DIMENSION_VERT ) + { + org_scale = hints->y_scale; + org_delta = hints->y_delta; + } + else + { + org_scale = hints->x_scale; + org_delta = hints->x_delta; + } + + warper->best_scale = org_scale; + warper->best_delta = org_delta; + warper->best_score = INT_MIN; + warper->best_distort = 0; + + axis = &hints->axis[dim]; + segments = axis->segments; + num_segments = axis->num_segments; + points = hints->points; + num_points = hints->num_points; + + *a_scale = org_scale; + *a_delta = org_delta; + + /* get X1 and X2, minimum and maximum in original coordinates */ + if ( num_segments < 1 ) + return; + +#if 1 + X1 = X2 = points[0].fx; + for ( nn = 1; nn < num_points; nn++ ) + { + FT_Int X = points[nn].fx; + + + if ( X < X1 ) + X1 = X; + if ( X > X2 ) + X2 = X; + } +#else + X1 = X2 = segments[0].pos; + for ( nn = 1; nn < num_segments; nn++ ) + { + FT_Int X = segments[nn].pos; + + + if ( X < X1 ) + X1 = X; + if ( X > X2 ) + X2 = X; + } +#endif + + if ( X1 >= X2 ) + return; + + warper->x1 = FT_MulFix( X1, org_scale ) + org_delta; + warper->x2 = FT_MulFix( X2, org_scale ) + org_delta; + + warper->t1 = AF_WARPER_FLOOR( warper->x1 ); + warper->t2 = AF_WARPER_CEIL( warper->x2 ); + + /* examine a half pixel wide range around the maximum coordinates */ + warper->x1min = warper->x1 & ~31; + warper->x1max = warper->x1min + 32; + warper->x2min = warper->x2 & ~31; + warper->x2max = warper->x2min + 32; + + if ( warper->x1max > warper->x2 ) + warper->x1max = warper->x2; + + if ( warper->x2min < warper->x1 ) + warper->x2min = warper->x1; + + warper->w0 = warper->x2 - warper->x1; + + if ( warper->w0 <= 64 ) + { + warper->x1max = warper->x1; + warper->x2min = warper->x2; + } + + /* examine (at most) a pixel wide range around the natural width */ + warper->wmin = warper->x2min - warper->x1max; + warper->wmax = warper->x2max - warper->x1min; + +#if 1 + /* some heuristics to reduce the number of widths to be examined */ + { + int margin = 16; + + + if ( warper->w0 <= 128 ) + { + margin = 8; + if ( warper->w0 <= 96 ) + margin = 4; + } + + if ( warper->wmin < warper->w0 - margin ) + warper->wmin = warper->w0 - margin; + + if ( warper->wmax > warper->w0 + margin ) + warper->wmax = warper->w0 + margin; + } + + if ( warper->wmin < warper->w0 * 3 / 4 ) + warper->wmin = warper->w0 * 3 / 4; + + if ( warper->wmax > warper->w0 * 5 / 4 ) + warper->wmax = warper->w0 * 5 / 4; +#else + /* no scaling, just translation */ + warper->wmin = warper->wmax = warper->w0; +#endif + + for ( w = warper->wmin; w <= warper->wmax; w++ ) + { + FT_Fixed new_scale; + FT_Pos new_delta; + FT_Pos xx1, xx2; + + + /* compute min and max positions for given width, */ + /* assuring that they stay within the coordinate ranges */ + xx1 = warper->x1; + xx2 = warper->x2; + if ( w >= warper->w0 ) + { + xx1 -= w - warper->w0; + if ( xx1 < warper->x1min ) + { + xx2 += warper->x1min - xx1; + xx1 = warper->x1min; + } + } + else + { + xx1 -= w - warper->w0; + if ( xx1 > warper->x1max ) + { + xx2 -= xx1 - warper->x1max; + xx1 = warper->x1max; + } + } + + if ( xx1 < warper->x1 ) + base_distort = warper->x1 - xx1; + else + base_distort = xx1 - warper->x1; + + if ( xx2 < warper->x2 ) + base_distort += warper->x2 - xx2; + else + base_distort += xx2 - warper->x2; + + /* give base distortion a greater weight while scoring */ + base_distort *= 10; + + new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 ); + new_delta = xx1 - FT_MulFix( X1, new_scale ); + + af_warper_compute_line_best( warper, new_scale, new_delta, xx1, xx2, + base_distort, + segments, num_segments ); + } + + { + FT_Fixed best_scale = warper->best_scale; + FT_Pos best_delta = warper->best_delta; + + + hints->xmin_delta = FT_MulFix( X1, best_scale - org_scale ) + + best_delta; + hints->xmax_delta = FT_MulFix( X2, best_scale - org_scale ) + + best_delta; + + *a_scale = best_scale; + *a_delta = best_delta; + } + } + +#else /* !AF_CONFIG_OPTION_USE_WARPER */ + + /* ANSI C doesn't like empty source files */ + typedef int _af_warp_dummy; + +#endif /* !AF_CONFIG_OPTION_USE_WARPER */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/afwarp.h b/uppsrc/plugin/FT_fontsys/src/autofit/afwarp.h new file mode 100644 index 000000000..7343fdd5e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/afwarp.h @@ -0,0 +1,64 @@ +/***************************************************************************/ +/* */ +/* afwarp.h */ +/* */ +/* Auto-fitter warping algorithm (specification). */ +/* */ +/* Copyright 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFWARP_H__ +#define __AFWARP_H__ + +#include "afhints.h" + +FT_BEGIN_HEADER + +#define AF_WARPER_SCALE + +#define AF_WARPER_FLOOR( x ) ( (x) & ~63 ) +#define AF_WARPER_CEIL( x ) AF_WARPER_FLOOR( (x) + 63 ) + + + typedef FT_Int32 AF_WarpScore; + + typedef struct AF_WarperRec_ + { + FT_Pos x1, x2; + FT_Pos t1, t2; + FT_Pos x1min, x1max; + FT_Pos x2min, x2max; + FT_Pos w0, wmin, wmax; + + FT_Fixed best_scale; + FT_Pos best_delta; + AF_WarpScore best_score; + AF_WarpScore best_distort; + + } AF_WarperRec, *AF_Warper; + + + FT_LOCAL( void ) + af_warper_compute( AF_Warper warper, + AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed *a_scale, + FT_Fixed *a_delta ); + + +FT_END_HEADER + + +#endif /* __AFWARP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/autofit/autofit.c b/uppsrc/plugin/FT_fontsys/src/autofit/autofit.c new file mode 100644 index 000000000..dec9b1273 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/autofit/autofit.c @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* autofit.c */ +/* */ +/* Auto-fitter module (body). */ +/* */ +/* Copyright 2003-2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT +#include <freetype/ft2build.h> +#include "afpic.c" +#include "afangles.c" +#include "afglobal.c" +#include "afhints.c" + +#include "afdummy.c" +#include "aflatin.c" +#ifdef FT_OPTION_AUTOFIT2 +#include "aflatin2.c" +#endif +#include "afcjk.c" +#include "afindic.c" + +#include "afloader.c" +#include "afmodule.c" + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.c" +#endif + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/basepic.c b/uppsrc/plugin/FT_fontsys/src/base/basepic.c new file mode 100644 index 000000000..0093981bc --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/basepic.c @@ -0,0 +1,83 @@ +/***************************************************************************/ +/* */ +/* basepic.c */ +/* */ +/* The FreeType position independent code services for base. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "basepic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ftglyph.c */ + void FT_Init_Class_ft_outline_glyph_class(FT_Glyph_Class*); + void FT_Init_Class_ft_bitmap_glyph_class(FT_Glyph_Class*); + + /* forward declaration of PIC init functions from ftinit.c */ + FT_Error ft_create_default_module_classes(FT_Library); + void ft_destroy_default_module_classes(FT_Library); + + void + ft_base_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->base ) + { + /* Destroy default module classes (in case FT_Add_Default_Modules was used) */ + ft_destroy_default_module_classes( library ); + + FT_FREE( pic_container->base ); + pic_container->base = NULL; + } + } + + + FT_Error + ft_base_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = FT_Err_Ok; + BasePIC* container; + FT_Memory memory = library->memory; + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof(*container) ); + pic_container->base = container; + + /* initialize default modules list and pointers */ + error = ft_create_default_module_classes( library ); + if ( error ) + goto Exit; + + /* initialize pointer table - this is how the module usually expects this data */ + FT_Init_Class_ft_outline_glyph_class(&container->ft_outline_glyph_class); + FT_Init_Class_ft_bitmap_glyph_class(&container->ft_bitmap_glyph_class); + +Exit: + if(error) + ft_base_pic_free(library); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/basepic.h b/uppsrc/plugin/FT_fontsys/src/base/basepic.h new file mode 100644 index 000000000..bb1774576 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/basepic.h @@ -0,0 +1,62 @@ +/***************************************************************************/ +/* */ +/* basepic.h */ +/* */ +/* The FreeType position independent code services for base. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __BASEPIC_H__ +#define __BASEPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_OUTLINE_GLYPH_CLASS_GET &ft_outline_glyph_class +#define FT_BITMAP_GLYPH_CLASS_GET &ft_bitmap_glyph_class +#define FT_DEFAULT_MODULES_GET ft_default_modules + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_GLYPH_H + + typedef struct BasePIC_ + { + FT_Module_Class** default_module_classes; + FT_Glyph_Class ft_outline_glyph_class; + FT_Glyph_Class ft_bitmap_glyph_class; + } BasePIC; + +#define GET_PIC(lib) ((BasePIC*)((lib)->pic_container.base)) +#define FT_OUTLINE_GLYPH_CLASS_GET (&GET_PIC(library)->ft_outline_glyph_class) +#define FT_BITMAP_GLYPH_CLASS_GET (&GET_PIC(library)->ft_bitmap_glyph_class) +#define FT_DEFAULT_MODULES_GET (GET_PIC(library)->default_module_classes) + + void + ft_base_pic_free( FT_Library library ); + + FT_Error + ft_base_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + /* */ + +FT_END_HEADER + +#endif /* __BASEPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftadvanc.c b/uppsrc/plugin/FT_fontsys/src/base/ftadvanc.c new file mode 100644 index 000000000..8f9743434 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftadvanc.c @@ -0,0 +1,163 @@ +/***************************************************************************/ +/* */ +/* ftadvanc.c */ +/* */ +/* Quick computation of advance widths (body). */ +/* */ +/* Copyright 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_ADVANCES_H +#include FT_INTERNAL_OBJECTS_H + + + static FT_Error + _ft_face_scale_advances( FT_Face face, + FT_Fixed* advances, + FT_UInt count, + FT_Int32 flags ) + { + FT_Fixed scale; + FT_UInt nn; + + + if ( flags & FT_LOAD_NO_SCALE ) + return FT_Err_Ok; + + if ( face->size == NULL ) + return FT_Err_Invalid_Size_Handle; + + if ( flags & FT_LOAD_VERTICAL_LAYOUT ) + scale = face->size->metrics.y_scale; + else + scale = face->size->metrics.x_scale; + + /* this must be the same scaling as to get linear{Hori,Vert}Advance */ + /* (see `FT_Load_Glyph' implementation in src/base/ftobjs.c) */ + + for ( nn = 0; nn < count; nn++ ) + advances[nn] = FT_MulDiv( advances[nn], scale, 64 ); + + return FT_Err_Ok; + } + + + /* at the moment, we can perform fast advance retrieval only in */ + /* the following cases: */ + /* */ + /* - unscaled load */ + /* - unhinted load */ + /* - light-hinted load */ + +#define LOAD_ADVANCE_FAST_CHECK( flags ) \ + ( flags & ( FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING ) || \ + FT_LOAD_TARGET_MODE( flags ) == FT_RENDER_MODE_LIGHT ) + + + /* documentation is in ftadvanc.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Advance( FT_Face face, + FT_UInt gindex, + FT_Int32 flags, + FT_Fixed *padvance ) + { + FT_Face_GetAdvancesFunc func; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( gindex >= (FT_UInt)face->num_glyphs ) + return FT_Err_Invalid_Glyph_Index; + + func = face->driver->clazz->get_advances; + if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) ) + { + FT_Error error; + + + error = func( face, gindex, 1, flags, padvance ); + if ( !error ) + return _ft_face_scale_advances( face, padvance, 1, flags ); + + if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) ) + return error; + } + + return FT_Get_Advances( face, gindex, 1, flags, padvance ); + } + + + /* documentation is in ftadvanc.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Advances( FT_Face face, + FT_UInt start, + FT_UInt count, + FT_Int32 flags, + FT_Fixed *padvances ) + { + FT_Face_GetAdvancesFunc func; + FT_UInt num, end, nn; + FT_Error error = FT_Err_Ok; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + num = (FT_UInt)face->num_glyphs; + end = start + count; + if ( start >= num || end < start || end > num ) + return FT_Err_Invalid_Glyph_Index; + + if ( count == 0 ) + return FT_Err_Ok; + + func = face->driver->clazz->get_advances; + if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) ) + { + error = func( face, start, count, flags, padvances ); + if ( !error ) + goto Exit; + + if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) ) + return error; + } + + error = FT_Err_Ok; + + if ( flags & FT_ADVANCE_FLAG_FAST_ONLY ) + return FT_Err_Unimplemented_Feature; + + flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; + for ( nn = 0; nn < count; nn++ ) + { + error = FT_Load_Glyph( face, start + nn, flags ); + if ( error ) + break; + + padvances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) + ? face->glyph->advance.y + : face->glyph->advance.x; + } + + if ( error ) + return error; + + Exit: + return _ft_face_scale_advances( face, padvances, count, flags ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftapi.c b/uppsrc/plugin/FT_fontsys/src/base/ftapi.c new file mode 100644 index 000000000..9790d6dda --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftapi.c @@ -0,0 +1,121 @@ +/***************************************************************************/ +/* */ +/* ftapi.c */ +/* */ +/* The FreeType compatibility functions (body). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_LIST_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TABLES_H +#include FT_OUTLINE_H + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** C O M P A T I B I L I T Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* backwards compatibility API */ + + FT_BASE_DEF( void ) + FT_New_Memory_Stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream stream ) + { + FT_UNUSED( library ); + + FT_Stream_OpenMemory( stream, base, size ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Seek_Stream( FT_Stream stream, + FT_ULong pos ) + { + return FT_Stream_Seek( stream, pos ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Skip_Stream( FT_Stream stream, + FT_Long distance ) + { + return FT_Stream_Skip( stream, distance ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Read_Stream( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_Read( stream, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Read_Stream_At( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_ReadAt( stream, pos, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Extract_Frame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ) + { + return FT_Stream_ExtractFrame( stream, count, pbytes ); + } + + + FT_BASE_DEF( void ) + FT_Release_Frame( FT_Stream stream, + FT_Byte** pbytes ) + { + FT_Stream_ReleaseFrame( stream, pbytes ); + } + + FT_BASE_DEF( FT_Error ) + FT_Access_Frame( FT_Stream stream, + FT_ULong count ) + { + return FT_Stream_EnterFrame( stream, count ); + } + + + FT_BASE_DEF( void ) + FT_Forget_Frame( FT_Stream stream ) + { + FT_Stream_ExitFrame( stream ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftbase.c b/uppsrc/plugin/FT_fontsys/src/base/ftbase.c new file mode 100644 index 000000000..5f4a2d9ce --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftbase.c @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* ftbase.c */ +/* */ +/* Single object library component (body only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include "ftpic.c" +#include "basepic.c" +#include "ftadvanc.c" +#include "ftcalc.c" +#include "ftdbgmem.c" +#include "ftgloadr.c" +#include "ftobjs.c" +#include "ftoutln.c" +#include "ftrfork.c" +#include "ftsnames.c" +#include "ftstream.c" +#include "fttrigon.c" +#include "ftutil.c" + +#if defined( FT_MACINTOSH ) && !defined ( DARWIN_NO_CARBON ) +#include "ftmac.c" +#endif + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftbase.h b/uppsrc/plugin/FT_fontsys/src/base/ftbase.h new file mode 100644 index 000000000..8094a8aba --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftbase.h @@ -0,0 +1,68 @@ +/***************************************************************************/ +/* */ +/* ftbase.h */ +/* */ +/* The FreeType private functions used in base module (specification). */ +/* */ +/* Copyright 2008, 2010 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBASE_H__ +#define __FTBASE_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + /* Assume the stream is sfnt-wrapped PS Type1 or sfnt-wrapped CID-keyed */ + /* font, and try to load a face specified by the face_index. */ + FT_LOCAL( FT_Error ) + open_face_PS_from_sfnt_stream( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter *params, + FT_Face *aface ); + + + /* Create a new FT_Face given a buffer and a driver name. */ + /* From ftmac.c. */ + FT_LOCAL( FT_Error ) + open_face_from_buffer( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Long face_index, + const char* driver_name, + FT_Face *aface ); + + +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK + /* Mac OS X/Darwin kernel often changes recommended method to access */ + /* the resource fork and older methods makes the kernel issue the */ + /* warning of deprecated method. To calm it down, the methods based */ + /* on Darwin VFS should be grouped and skip the rest methods after */ + /* the case the resource is opened but found to lack a font in it. */ + FT_LOCAL( FT_Bool ) + raccess_rule_by_darwin_vfs( FT_UInt rule_index ); +#endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + +FT_END_HEADER + +#endif /* __FTBASE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftbbox.c b/uppsrc/plugin/FT_fontsys/src/base/ftbbox.c new file mode 100644 index 000000000..6458dfd26 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftbbox.c @@ -0,0 +1,662 @@ +/***************************************************************************/ +/* */ +/* ftbbox.c */ +/* */ +/* FreeType bbox computation (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component has a _single_ role: to compute exact outline bounding */ + /* boxes. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_BBOX_H +#include FT_IMAGE_H +#include FT_OUTLINE_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_OBJECTS_H + + + typedef struct TBBox_Rec_ + { + FT_Vector last; + FT_BBox bbox; + + } TBBox_Rec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Move_To */ + /* */ + /* <Description> */ + /* This function is used as a `move_to' and `line_to' emitter during */ + /* FT_Outline_Decompose(). It simply records the destination point */ + /* in `user->last'; no further computations are necessary since we */ + /* use the cbox as the starting bbox which must be refined. */ + /* */ + /* <Input> */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: A pointer to the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + static int + BBox_Move_To( FT_Vector* to, + TBBox_Rec* user ) + { + user->last = *to; + + return 0; + } + + +#define CHECK_X( p, bbox ) \ + ( p->x < bbox.xMin || p->x > bbox.xMax ) + +#define CHECK_Y( p, bbox ) \ + ( p->y < bbox.yMin || p->y > bbox.yMax ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Conic_Check */ + /* */ + /* <Description> */ + /* Finds the extrema of a 1-dimensional conic Bezier curve and update */ + /* a bounding range. This version uses direct computation, as it */ + /* doesn't need square roots. */ + /* */ + /* <Input> */ + /* y1 :: The start coordinate. */ + /* */ + /* y2 :: The coordinate of the control point. */ + /* */ + /* y3 :: The end coordinate. */ + /* */ + /* <InOut> */ + /* min :: The address of the current minimum. */ + /* */ + /* max :: The address of the current maximum. */ + /* */ + static void + BBox_Conic_Check( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos* min, + FT_Pos* max ) + { + if ( y1 <= y3 && y2 == y1 ) /* flat arc */ + goto Suite; + + if ( y1 < y3 ) + { + if ( y2 >= y1 && y2 <= y3 ) /* ascending arc */ + goto Suite; + } + else + { + if ( y2 >= y3 && y2 <= y1 ) /* descending arc */ + { + y2 = y1; + y1 = y3; + y3 = y2; + goto Suite; + } + } + + y1 = y3 = y1 - FT_MulDiv( y2 - y1, y2 - y1, y1 - 2*y2 + y3 ); + + Suite: + if ( y1 < *min ) *min = y1; + if ( y3 > *max ) *max = y3; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Conic_To */ + /* */ + /* <Description> */ + /* This function is used as a `conic_to' emitter during */ + /* FT_Outline_Decompose(). It checks a conic Bezier curve with the */ + /* current bounding box, and computes its extrema if necessary to */ + /* update it. */ + /* */ + /* <Input> */ + /* control :: A pointer to a control point. */ + /* */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: The address of the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + /* <Note> */ + /* In the case of a non-monotonous arc, we compute directly the */ + /* extremum coordinates, as it is sufficiently fast. */ + /* */ + static int + BBox_Conic_To( FT_Vector* control, + FT_Vector* to, + TBBox_Rec* user ) + { + /* we don't need to check `to' since it is always an `on' point, thus */ + /* within the bbox */ + + if ( CHECK_X( control, user->bbox ) ) + BBox_Conic_Check( user->last.x, + control->x, + to->x, + &user->bbox.xMin, + &user->bbox.xMax ); + + if ( CHECK_Y( control, user->bbox ) ) + BBox_Conic_Check( user->last.y, + control->y, + to->y, + &user->bbox.yMin, + &user->bbox.yMax ); + + user->last = *to; + + return 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Cubic_Check */ + /* */ + /* <Description> */ + /* Finds the extrema of a 1-dimensional cubic Bezier curve and */ + /* updates a bounding range. This version uses splitting because we */ + /* don't want to use square roots and extra accuracy. */ + /* */ + /* <Input> */ + /* p1 :: The start coordinate. */ + /* */ + /* p2 :: The coordinate of the first control point. */ + /* */ + /* p3 :: The coordinate of the second control point. */ + /* */ + /* p4 :: The end coordinate. */ + /* */ + /* <InOut> */ + /* min :: The address of the current minimum. */ + /* */ + /* max :: The address of the current maximum. */ + /* */ + +#if 0 + + static void + BBox_Cubic_Check( FT_Pos p1, + FT_Pos p2, + FT_Pos p3, + FT_Pos p4, + FT_Pos* min, + FT_Pos* max ) + { + FT_Pos stack[32*3 + 1], *arc; + + + arc = stack; + + arc[0] = p1; + arc[1] = p2; + arc[2] = p3; + arc[3] = p4; + + do + { + FT_Pos y1 = arc[0]; + FT_Pos y2 = arc[1]; + FT_Pos y3 = arc[2]; + FT_Pos y4 = arc[3]; + + + if ( y1 == y4 ) + { + if ( y1 == y2 && y1 == y3 ) /* flat */ + goto Test; + } + else if ( y1 < y4 ) + { + if ( y2 >= y1 && y2 <= y4 && y3 >= y1 && y3 <= y4 ) /* ascending */ + goto Test; + } + else + { + if ( y2 >= y4 && y2 <= y1 && y3 >= y4 && y3 <= y1 ) /* descending */ + { + y2 = y1; + y1 = y4; + y4 = y2; + goto Test; + } + } + + /* unknown direction -- split the arc in two */ + arc[6] = y4; + arc[1] = y1 = ( y1 + y2 ) / 2; + arc[5] = y4 = ( y4 + y3 ) / 2; + y2 = ( y2 + y3 ) / 2; + arc[2] = y1 = ( y1 + y2 ) / 2; + arc[4] = y4 = ( y4 + y2 ) / 2; + arc[3] = ( y1 + y4 ) / 2; + + arc += 3; + goto Suite; + + Test: + if ( y1 < *min ) *min = y1; + if ( y4 > *max ) *max = y4; + arc -= 3; + + Suite: + ; + } while ( arc >= stack ); + } + +#else + + static void + test_cubic_extrema( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos y4, + FT_Fixed u, + FT_Pos* min, + FT_Pos* max ) + { + /* FT_Pos a = y4 - 3*y3 + 3*y2 - y1; */ + FT_Pos b = y3 - 2*y2 + y1; + FT_Pos c = y2 - y1; + FT_Pos d = y1; + FT_Pos y; + FT_Fixed uu; + + FT_UNUSED ( y4 ); + + + /* The polynomial is */ + /* */ + /* P(x) = a*x^3 + 3b*x^2 + 3c*x + d , */ + /* */ + /* dP/dx = 3a*x^2 + 6b*x + 3c . */ + /* */ + /* However, we also have */ + /* */ + /* dP/dx(u) = 0 , */ + /* */ + /* which implies by subtraction that */ + /* */ + /* P(u) = b*u^2 + 2c*u + d . */ + + if ( u > 0 && u < 0x10000L ) + { + uu = FT_MulFix( u, u ); + y = d + FT_MulFix( c, 2*u ) + FT_MulFix( b, uu ); + + if ( y < *min ) *min = y; + if ( y > *max ) *max = y; + } + } + + + static void + BBox_Cubic_Check( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos y4, + FT_Pos* min, + FT_Pos* max ) + { + /* always compare first and last points */ + if ( y1 < *min ) *min = y1; + else if ( y1 > *max ) *max = y1; + + if ( y4 < *min ) *min = y4; + else if ( y4 > *max ) *max = y4; + + /* now, try to see if there are split points here */ + if ( y1 <= y4 ) + { + /* flat or ascending arc test */ + if ( y1 <= y2 && y2 <= y4 && y1 <= y3 && y3 <= y4 ) + return; + } + else /* y1 > y4 */ + { + /* descending arc test */ + if ( y1 >= y2 && y2 >= y4 && y1 >= y3 && y3 >= y4 ) + return; + } + + /* There are some split points. Find them. */ + { + FT_Pos a = y4 - 3*y3 + 3*y2 - y1; + FT_Pos b = y3 - 2*y2 + y1; + FT_Pos c = y2 - y1; + FT_Pos d; + FT_Fixed t; + + + /* We need to solve `ax^2+2bx+c' here, without floating points! */ + /* The trick is to normalize to a different representation in order */ + /* to use our 16.16 fixed point routines. */ + /* */ + /* We compute FT_MulFix(b,b) and FT_MulFix(a,c) after normalization. */ + /* These values must fit into a single 16.16 value. */ + /* */ + /* We normalize a, b, and c to `8.16' fixed float values to ensure */ + /* that its product is held in a `16.16' value. */ + + { + FT_ULong t1, t2; + int shift = 0; + + + /* The following computation is based on the fact that for */ + /* any value `y', if `n' is the position of the most */ + /* significant bit of `abs(y)' (starting from 0 for the */ + /* least significant bit), then `y' is in the range */ + /* */ + /* -2^n..2^n-1 */ + /* */ + /* We want to shift `a', `b', and `c' concurrently in order */ + /* to ensure that they all fit in 8.16 values, which maps */ + /* to the integer range `-2^23..2^23-1'. */ + /* */ + /* Necessarily, we need to shift `a', `b', and `c' so that */ + /* the most significant bit of its absolute values is at */ + /* _most_ at position 23. */ + /* */ + /* We begin by computing `t1' as the bitwise `OR' of the */ + /* absolute values of `a', `b', `c'. */ + + t1 = (FT_ULong)( ( a >= 0 ) ? a : -a ); + t2 = (FT_ULong)( ( b >= 0 ) ? b : -b ); + t1 |= t2; + t2 = (FT_ULong)( ( c >= 0 ) ? c : -c ); + t1 |= t2; + + /* Now we can be sure that the most significant bit of `t1' */ + /* is the most significant bit of either `a', `b', or `c', */ + /* depending on the greatest integer range of the particular */ + /* variable. */ + /* */ + /* Next, we compute the `shift', by shifting `t1' as many */ + /* times as necessary to move its MSB to position 23. This */ + /* corresponds to a value of `t1' that is in the range */ + /* 0x40_0000..0x7F_FFFF. */ + /* */ + /* Finally, we shift `a', `b', and `c' by the same amount. */ + /* This ensures that all values are now in the range */ + /* -2^23..2^23, i.e., they are now expressed as 8.16 */ + /* fixed-float numbers. This also means that we are using */ + /* 24 bits of precision to compute the zeros, independently */ + /* of the range of the original polynomial coefficients. */ + /* */ + /* This algorithm should ensure reasonably accurate values */ + /* for the zeros. Note that they are only expressed with */ + /* 16 bits when computing the extrema (the zeros need to */ + /* be in 0..1 exclusive to be considered part of the arc). */ + + if ( t1 == 0 ) /* all coefficients are 0! */ + return; + + if ( t1 > 0x7FFFFFUL ) + { + do + { + shift++; + t1 >>= 1; + + } while ( t1 > 0x7FFFFFUL ); + + /* this loses some bits of precision, but we use 24 of them */ + /* for the computation anyway */ + a >>= shift; + b >>= shift; + c >>= shift; + } + else if ( t1 < 0x400000UL ) + { + do + { + shift++; + t1 <<= 1; + + } while ( t1 < 0x400000UL ); + + a <<= shift; + b <<= shift; + c <<= shift; + } + } + + /* handle a == 0 */ + if ( a == 0 ) + { + if ( b != 0 ) + { + t = - FT_DivFix( c, b ) / 2; + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + } + else + { + /* solve the equation now */ + d = FT_MulFix( b, b ) - FT_MulFix( a, c ); + if ( d < 0 ) + return; + + if ( d == 0 ) + { + /* there is a single split point at -b/a */ + t = - FT_DivFix( b, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + else + { + /* there are two solutions; we need to filter them */ + d = FT_SqrtFixed( (FT_Int32)d ); + t = - FT_DivFix( b - d, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + + t = - FT_DivFix( b + d, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + } + } + } + +#endif + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Cubic_To */ + /* */ + /* <Description> */ + /* This function is used as a `cubic_to' emitter during */ + /* FT_Outline_Decompose(). It checks a cubic Bezier curve with the */ + /* current bounding box, and computes its extrema if necessary to */ + /* update it. */ + /* */ + /* <Input> */ + /* control1 :: A pointer to the first control point. */ + /* */ + /* control2 :: A pointer to the second control point. */ + /* */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: The address of the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + /* <Note> */ + /* In the case of a non-monotonous arc, we don't compute directly */ + /* extremum coordinates, we subdivide instead. */ + /* */ + static int + BBox_Cubic_To( FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to, + TBBox_Rec* user ) + { + /* we don't need to check `to' since it is always an `on' point, thus */ + /* within the bbox */ + + if ( CHECK_X( control1, user->bbox ) || + CHECK_X( control2, user->bbox ) ) + BBox_Cubic_Check( user->last.x, + control1->x, + control2->x, + to->x, + &user->bbox.xMin, + &user->bbox.xMax ); + + if ( CHECK_Y( control1, user->bbox ) || + CHECK_Y( control2, user->bbox ) ) + BBox_Cubic_Check( user->last.y, + control1->y, + control2->y, + to->y, + &user->bbox.yMin, + &user->bbox.yMax ); + + user->last = *to; + + return 0; + } + +FT_DEFINE_OUTLINE_FUNCS(bbox_interface, + (FT_Outline_MoveTo_Func) BBox_Move_To, + (FT_Outline_LineTo_Func) BBox_Move_To, + (FT_Outline_ConicTo_Func)BBox_Conic_To, + (FT_Outline_CubicTo_Func)BBox_Cubic_To, + 0, 0 + ) + + /* documentation is in ftbbox.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Get_BBox( FT_Outline* outline, + FT_BBox *abbox ) + { + FT_BBox cbox; + FT_BBox bbox; + FT_Vector* vec; + FT_UShort n; + + + if ( !abbox ) + return FT_Err_Invalid_Argument; + + if ( !outline ) + return FT_Err_Invalid_Outline; + + /* if outline is empty, return (0,0,0,0) */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + { + abbox->xMin = abbox->xMax = 0; + abbox->yMin = abbox->yMax = 0; + return 0; + } + + /* We compute the control box as well as the bounding box of */ + /* all `on' points in the outline. Then, if the two boxes */ + /* coincide, we exit immediately. */ + + vec = outline->points; + bbox.xMin = bbox.xMax = cbox.xMin = cbox.xMax = vec->x; + bbox.yMin = bbox.yMax = cbox.yMin = cbox.yMax = vec->y; + vec++; + + for ( n = 1; n < outline->n_points; n++ ) + { + FT_Pos x = vec->x; + FT_Pos y = vec->y; + + + /* update control box */ + if ( x < cbox.xMin ) cbox.xMin = x; + if ( x > cbox.xMax ) cbox.xMax = x; + + if ( y < cbox.yMin ) cbox.yMin = y; + if ( y > cbox.yMax ) cbox.yMax = y; + + if ( FT_CURVE_TAG( outline->tags[n] ) == FT_CURVE_TAG_ON ) + { + /* update bbox for `on' points only */ + if ( x < bbox.xMin ) bbox.xMin = x; + if ( x > bbox.xMax ) bbox.xMax = x; + + if ( y < bbox.yMin ) bbox.yMin = y; + if ( y > bbox.yMax ) bbox.yMax = y; + } + + vec++; + } + + /* test two boxes for equality */ + if ( cbox.xMin < bbox.xMin || cbox.xMax > bbox.xMax || + cbox.yMin < bbox.yMin || cbox.yMax > bbox.yMax ) + { + /* the two boxes are different, now walk over the outline to */ + /* get the Bezier arc extrema. */ + + FT_Error error; + TBBox_Rec user; + +#ifdef FT_CONFIG_OPTION_PIC + FT_Outline_Funcs bbox_interface; + Init_Class_bbox_interface(&bbox_interface); +#endif + + user.bbox = bbox; + + error = FT_Outline_Decompose( outline, &bbox_interface, &user ); + if ( error ) + return error; + + *abbox = user.bbox; + } + else + *abbox = bbox; + + return FT_Err_Ok; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftbdf.c b/uppsrc/plugin/FT_fontsys/src/base/ftbdf.c new file mode 100644 index 000000000..3a8868cbb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftbdf.c @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* ftbdf.c */ +/* */ +/* FreeType API for accessing BDF-specific strings (body). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_BDF_H + + + /* documentation is in ftbdf.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_BDF_Charset_ID( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + FT_Error error; + const char* encoding = NULL; + const char* registry = NULL; + + + error = FT_Err_Invalid_Argument; + + if ( face ) + { + FT_Service_BDF service; + + + FT_FACE_FIND_SERVICE( face, service, BDF ); + + if ( service && service->get_charset_id ) + error = service->get_charset_id( face, &encoding, ®istry ); + } + + if ( acharset_encoding ) + *acharset_encoding = encoding; + + if ( acharset_registry ) + *acharset_registry = registry; + + return error; + } + + + /* documentation is in ftbdf.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_BDF_Property( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + FT_Error error; + + + error = FT_Err_Invalid_Argument; + + aproperty->type = BDF_PROPERTY_TYPE_NONE; + + if ( face ) + { + FT_Service_BDF service; + + + FT_FACE_FIND_SERVICE( face, service, BDF ); + + if ( service && service->get_property ) + error = service->get_property( face, prop_name, aproperty ); + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftbitmap.c b/uppsrc/plugin/FT_fontsys/src/base/ftbitmap.c new file mode 100644 index 000000000..fc7ebe636 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftbitmap.c @@ -0,0 +1,663 @@ +/***************************************************************************/ +/* */ +/* ftbitmap.c */ +/* */ +/* FreeType utility functions for bitmaps (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_BITMAP_H +#include FT_IMAGE_H +#include FT_INTERNAL_OBJECTS_H + + + static + const FT_Bitmap null_bitmap = { 0, 0, 0, 0, 0, 0, 0, 0 }; + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( void ) + FT_Bitmap_New( FT_Bitmap *abitmap ) + { + *abitmap = null_bitmap; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Copy( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target) + { + FT_Memory memory = library->memory; + FT_Error error = FT_Err_Ok; + FT_Int pitch = source->pitch; + FT_ULong size; + + + if ( source == target ) + return FT_Err_Ok; + + if ( source->buffer == NULL ) + { + *target = *source; + + return FT_Err_Ok; + } + + if ( pitch < 0 ) + pitch = -pitch; + size = (FT_ULong)( pitch * source->rows ); + + if ( target->buffer ) + { + FT_Int target_pitch = target->pitch; + FT_ULong target_size; + + + if ( target_pitch < 0 ) + target_pitch = -target_pitch; + target_size = (FT_ULong)( target_pitch * target->rows ); + + if ( target_size != size ) + (void)FT_QREALLOC( target->buffer, target_size, size ); + } + else + (void)FT_QALLOC( target->buffer, size ); + + if ( !error ) + { + unsigned char *p; + + + p = target->buffer; + *target = *source; + target->buffer = p; + + FT_MEM_COPY( target->buffer, source->buffer, size ); + } + + return error; + } + + + static FT_Error + ft_bitmap_assure_buffer( FT_Memory memory, + FT_Bitmap* bitmap, + FT_UInt xpixels, + FT_UInt ypixels ) + { + FT_Error error; + int pitch; + int new_pitch; + FT_UInt bpp; + FT_Int i, width, height; + unsigned char* buffer = NULL; + + + width = bitmap->width; + height = bitmap->rows; + pitch = bitmap->pitch; + if ( pitch < 0 ) + pitch = -pitch; + + switch ( bitmap->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + bpp = 1; + new_pitch = ( width + xpixels + 7 ) >> 3; + break; + case FT_PIXEL_MODE_GRAY2: + bpp = 2; + new_pitch = ( width + xpixels + 3 ) >> 2; + break; + case FT_PIXEL_MODE_GRAY4: + bpp = 4; + new_pitch = ( width + xpixels + 1 ) >> 1; + break; + case FT_PIXEL_MODE_GRAY: + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + bpp = 8; + new_pitch = ( width + xpixels ); + break; + default: + return FT_Err_Invalid_Glyph_Format; + } + + /* if no need to allocate memory */ + if ( ypixels == 0 && new_pitch <= pitch ) + { + /* zero the padding */ + FT_Int bit_width = pitch * 8; + FT_Int bit_last = ( width + xpixels ) * bpp; + + + if ( bit_last < bit_width ) + { + FT_Byte* line = bitmap->buffer + ( bit_last >> 3 ); + FT_Byte* end = bitmap->buffer + pitch; + FT_Int shift = bit_last & 7; + FT_UInt mask = 0xFF00U >> shift; + FT_Int count = height; + + + for ( ; count > 0; count--, line += pitch, end += pitch ) + { + FT_Byte* write = line; + + + if ( shift > 0 ) + { + write[0] = (FT_Byte)( write[0] & mask ); + write++; + } + if ( write < end ) + FT_MEM_ZERO( write, end-write ); + } + } + + return FT_Err_Ok; + } + + if ( FT_QALLOC_MULT( buffer, new_pitch, bitmap->rows + ypixels ) ) + return error; + + if ( bitmap->pitch > 0 ) + { + FT_Int len = ( width * bpp + 7 ) >> 3; + + + for ( i = 0; i < bitmap->rows; i++ ) + FT_MEM_COPY( buffer + new_pitch * ( ypixels + i ), + bitmap->buffer + pitch * i, len ); + } + else + { + FT_Int len = ( width * bpp + 7 ) >> 3; + + + for ( i = 0; i < bitmap->rows; i++ ) + FT_MEM_COPY( buffer + new_pitch * i, + bitmap->buffer + pitch * i, len ); + } + + FT_FREE( bitmap->buffer ); + bitmap->buffer = buffer; + + if ( bitmap->pitch < 0 ) + new_pitch = -new_pitch; + + /* set pitch only, width and height are left untouched */ + bitmap->pitch = new_pitch; + + return FT_Err_Ok; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Embolden( FT_Library library, + FT_Bitmap* bitmap, + FT_Pos xStrength, + FT_Pos yStrength ) + { + FT_Error error; + unsigned char* p; + FT_Int i, x, y, pitch; + FT_Int xstr, ystr; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !bitmap || !bitmap->buffer ) + return FT_Err_Invalid_Argument; + + if ( ( ( FT_PIX_ROUND( xStrength ) >> 6 ) > FT_INT_MAX ) || + ( ( FT_PIX_ROUND( yStrength ) >> 6 ) > FT_INT_MAX ) ) + return FT_Err_Invalid_Argument; + + xstr = (FT_Int)FT_PIX_ROUND( xStrength ) >> 6; + ystr = (FT_Int)FT_PIX_ROUND( yStrength ) >> 6; + + if ( xstr == 0 && ystr == 0 ) + return FT_Err_Ok; + else if ( xstr < 0 || ystr < 0 ) + return FT_Err_Invalid_Argument; + + switch ( bitmap->pixel_mode ) + { + case FT_PIXEL_MODE_GRAY2: + case FT_PIXEL_MODE_GRAY4: + { + FT_Bitmap tmp; + FT_Int align; + + + if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY2 ) + align = ( bitmap->width + xstr + 3 ) / 4; + else + align = ( bitmap->width + xstr + 1 ) / 2; + + FT_Bitmap_New( &tmp ); + + error = FT_Bitmap_Convert( library, bitmap, &tmp, align ); + if ( error ) + return error; + + FT_Bitmap_Done( library, bitmap ); + *bitmap = tmp; + } + break; + + case FT_PIXEL_MODE_MONO: + if ( xstr > 8 ) + xstr = 8; + break; + + case FT_PIXEL_MODE_LCD: + xstr *= 3; + break; + + case FT_PIXEL_MODE_LCD_V: + ystr *= 3; + break; + } + + error = ft_bitmap_assure_buffer( library->memory, bitmap, xstr, ystr ); + if ( error ) + return error; + + pitch = bitmap->pitch; + if ( pitch > 0 ) + p = bitmap->buffer + pitch * ystr; + else + { + pitch = -pitch; + p = bitmap->buffer + pitch * ( bitmap->rows - 1 ); + } + + /* for each row */ + for ( y = 0; y < bitmap->rows ; y++ ) + { + /* + * Horizontally: + * + * From the last pixel on, make each pixel or'ed with the + * `xstr' pixels before it. + */ + for ( x = pitch - 1; x >= 0; x-- ) + { + unsigned char tmp; + + + tmp = p[x]; + for ( i = 1; i <= xstr; i++ ) + { + if ( bitmap->pixel_mode == FT_PIXEL_MODE_MONO ) + { + p[x] |= tmp >> i; + + /* the maximum value of 8 for `xstr' comes from here */ + if ( x > 0 ) + p[x] |= p[x - 1] << ( 8 - i ); + +#if 0 + if ( p[x] == 0xff ) + break; +#endif + } + else + { + if ( x - i >= 0 ) + { + if ( p[x] + p[x - i] > bitmap->num_grays - 1 ) + { + p[x] = (unsigned char)(bitmap->num_grays - 1); + break; + } + else + { + p[x] = (unsigned char)(p[x] + p[x-i]); + if ( p[x] == bitmap->num_grays - 1 ) + break; + } + } + else + break; + } + } + } + + /* + * Vertically: + * + * Make the above `ystr' rows or'ed with it. + */ + for ( x = 1; x <= ystr; x++ ) + { + unsigned char* q; + + + q = p - bitmap->pitch * x; + for ( i = 0; i < pitch; i++ ) + q[i] |= p[i]; + } + + p += bitmap->pitch; + } + + bitmap->width += xstr; + bitmap->rows += ystr; + + return FT_Err_Ok; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Convert( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target, + FT_Int alignment ) + { + FT_Error error = FT_Err_Ok; + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + memory = library->memory; + + switch ( source->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + case FT_PIXEL_MODE_GRAY: + case FT_PIXEL_MODE_GRAY2: + case FT_PIXEL_MODE_GRAY4: + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + { + FT_Int pad; + FT_Long old_size; + + + old_size = target->rows * target->pitch; + if ( old_size < 0 ) + old_size = -old_size; + + target->pixel_mode = FT_PIXEL_MODE_GRAY; + target->rows = source->rows; + target->width = source->width; + + pad = 0; + if ( alignment > 0 ) + { + pad = source->width % alignment; + if ( pad != 0 ) + pad = alignment - pad; + } + + target->pitch = source->width + pad; + + if ( target->rows * target->pitch > old_size && + FT_QREALLOC( target->buffer, + old_size, target->rows * target->pitch ) ) + return error; + } + break; + + default: + error = FT_Err_Invalid_Argument; + } + + switch ( source->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + { + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int i; + + + target->num_grays = 2; + + for ( i = source->rows; i > 0; i-- ) + { + FT_Byte* ss = s; + FT_Byte* tt = t; + FT_Int j; + + + /* get the full bytes */ + for ( j = source->width >> 3; j > 0; j-- ) + { + FT_Int val = ss[0]; /* avoid a byte->int cast on each line */ + + + tt[0] = (FT_Byte)( ( val & 0x80 ) >> 7 ); + tt[1] = (FT_Byte)( ( val & 0x40 ) >> 6 ); + tt[2] = (FT_Byte)( ( val & 0x20 ) >> 5 ); + tt[3] = (FT_Byte)( ( val & 0x10 ) >> 4 ); + tt[4] = (FT_Byte)( ( val & 0x08 ) >> 3 ); + tt[5] = (FT_Byte)( ( val & 0x04 ) >> 2 ); + tt[6] = (FT_Byte)( ( val & 0x02 ) >> 1 ); + tt[7] = (FT_Byte)( val & 0x01 ); + + tt += 8; + ss += 1; + } + + /* get remaining pixels (if any) */ + j = source->width & 7; + if ( j > 0 ) + { + FT_Int val = *ss; + + + for ( ; j > 0; j-- ) + { + tt[0] = (FT_Byte)( ( val & 0x80 ) >> 7); + val <<= 1; + tt += 1; + } + } + + s += source->pitch; + t += target->pitch; + } + } + break; + + + case FT_PIXEL_MODE_GRAY: + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + { + FT_Int width = source->width; + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int s_pitch = source->pitch; + FT_Int t_pitch = target->pitch; + FT_Int i; + + + target->num_grays = 256; + + for ( i = source->rows; i > 0; i-- ) + { + FT_ARRAY_COPY( t, s, width ); + + s += s_pitch; + t += t_pitch; + } + } + break; + + + case FT_PIXEL_MODE_GRAY2: + { + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int i; + + + target->num_grays = 4; + + for ( i = source->rows; i > 0; i-- ) + { + FT_Byte* ss = s; + FT_Byte* tt = t; + FT_Int j; + + + /* get the full bytes */ + for ( j = source->width >> 2; j > 0; j-- ) + { + FT_Int val = ss[0]; + + + tt[0] = (FT_Byte)( ( val & 0xC0 ) >> 6 ); + tt[1] = (FT_Byte)( ( val & 0x30 ) >> 4 ); + tt[2] = (FT_Byte)( ( val & 0x0C ) >> 2 ); + tt[3] = (FT_Byte)( ( val & 0x03 ) ); + + ss += 1; + tt += 4; + } + + j = source->width & 3; + if ( j > 0 ) + { + FT_Int val = ss[0]; + + + for ( ; j > 0; j-- ) + { + tt[0] = (FT_Byte)( ( val & 0xC0 ) >> 6 ); + val <<= 2; + tt += 1; + } + } + + s += source->pitch; + t += target->pitch; + } + } + break; + + + case FT_PIXEL_MODE_GRAY4: + { + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int i; + + + target->num_grays = 16; + + for ( i = source->rows; i > 0; i-- ) + { + FT_Byte* ss = s; + FT_Byte* tt = t; + FT_Int j; + + + /* get the full bytes */ + for ( j = source->width >> 1; j > 0; j-- ) + { + FT_Int val = ss[0]; + + + tt[0] = (FT_Byte)( ( val & 0xF0 ) >> 4 ); + tt[1] = (FT_Byte)( ( val & 0x0F ) ); + + ss += 1; + tt += 2; + } + + if ( source->width & 1 ) + tt[0] = (FT_Byte)( ( ss[0] & 0xF0 ) >> 4 ); + + s += source->pitch; + t += target->pitch; + } + } + break; + + + default: + ; + } + + return error; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot ) + { + if ( slot && slot->format == FT_GLYPH_FORMAT_BITMAP && + !( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) ) + { + FT_Bitmap bitmap; + FT_Error error; + + + FT_Bitmap_New( &bitmap ); + error = FT_Bitmap_Copy( slot->library, &slot->bitmap, &bitmap ); + if ( error ) + return error; + + slot->bitmap = bitmap; + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + } + + return FT_Err_Ok; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Done( FT_Library library, + FT_Bitmap *bitmap ) + { + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !bitmap ) + return FT_Err_Invalid_Argument; + + memory = library->memory; + + FT_FREE( bitmap->buffer ); + *bitmap = null_bitmap; + + return FT_Err_Ok; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftcalc.c b/uppsrc/plugin/FT_fontsys/src/base/ftcalc.c new file mode 100644 index 000000000..c3332bd5c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftcalc.c @@ -0,0 +1,957 @@ +/***************************************************************************/ +/* */ +/* ftcalc.c */ +/* */ +/* Arithmetic computations (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Support for 1-complement arithmetic has been totally dropped in this */ + /* release. You can still write your own code if you need it. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Implementing basic computation routines. */ + /* */ + /* FT_MulDiv(), FT_MulFix(), FT_DivFix(), FT_RoundFix(), FT_CeilFix(), */ + /* and FT_FloorFix() are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_GLYPH_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H + +#ifdef FT_MULFIX_INLINED +#undef FT_MulFix +#endif + +/* we need to define a 64-bits data type here */ + +#ifdef FT_LONG64 + + typedef FT_INT64 FT_Int64; + +#else + + typedef struct FT_Int64_ + { + FT_UInt32 lo; + FT_UInt32 hi; + + } FT_Int64; + +#endif /* FT_LONG64 */ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_calc + + + /* The following three functions are available regardless of whether */ + /* FT_LONG64 is defined. */ + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_RoundFix( FT_Fixed a ) + { + return ( a >= 0 ) ? ( a + 0x8000L ) & ~0xFFFFL + : -((-a + 0x8000L ) & ~0xFFFFL ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_CeilFix( FT_Fixed a ) + { + return ( a >= 0 ) ? ( a + 0xFFFFL ) & ~0xFFFFL + : -((-a + 0xFFFFL ) & ~0xFFFFL ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_FloorFix( FT_Fixed a ) + { + return ( a >= 0 ) ? a & ~0xFFFFL + : -((-a) & ~0xFFFFL ); + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_Sqrt32( FT_Int32 x ) + { + FT_UInt32 val, root, newroot, mask; + + + root = 0; + mask = (FT_UInt32)0x40000000UL; + val = (FT_UInt32)x; + + do + { + newroot = root + mask; + if ( newroot <= val ) + { + val -= newroot; + root = newroot + mask; + } + + root >>= 1; + mask >>= 2; + + } while ( mask != 0 ); + + return root; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +#ifdef FT_LONG64 + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? (FT_Int64)a * b / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ) + { +#ifdef FT_MULFIX_ASSEMBLER + + return FT_MULFIX_ASSEMBLER( a, b ); + +#else + + FT_Int s = 1; + FT_Long c; + + + if ( a < 0 ) + { + a = -a; + s = -1; + } + + if ( b < 0 ) + { + b = -b; + s = -s; + } + + c = (FT_Long)( ( (FT_Int64)a * b + 0x8000L ) >> 16 ); + + return ( s > 0 ) ? c : -c; + +#endif /* FT_MULFIX_ASSEMBLER */ + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ) + { + FT_Int32 s; + FT_UInt32 q; + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + + if ( b == 0 ) + /* check for division by 0 */ + q = 0x7FFFFFFFL; + else + /* compute result directly */ + q = (FT_UInt32)( ( ( (FT_Int64)a << 16 ) + ( b >> 1 ) ) / b ); + + return ( s < 0 ? -(FT_Long)q : (FT_Long)q ); + } + + +#else /* !FT_LONG64 */ + + + static void + ft_multo64( FT_UInt32 x, + FT_UInt32 y, + FT_Int64 *z ) + { + FT_UInt32 lo1, hi1, lo2, hi2, lo, hi, i1, i2; + + + lo1 = x & 0x0000FFFFU; hi1 = x >> 16; + lo2 = y & 0x0000FFFFU; hi2 = y >> 16; + + lo = lo1 * lo2; + i1 = lo1 * hi2; + i2 = lo2 * hi1; + hi = hi1 * hi2; + + /* Check carry overflow of i1 + i2 */ + i1 += i2; + hi += (FT_UInt32)( i1 < i2 ) << 16; + + hi += i1 >> 16; + i1 = i1 << 16; + + /* Check carry overflow of i1 + lo */ + lo += i1; + hi += ( lo < i1 ); + + z->lo = lo; + z->hi = hi; + } + + + static FT_UInt32 + ft_div64by32( FT_UInt32 hi, + FT_UInt32 lo, + FT_UInt32 y ) + { + FT_UInt32 r, q; + FT_Int i; + + + q = 0; + r = hi; + + if ( r >= y ) + return (FT_UInt32)0x7FFFFFFFL; + + i = 32; + do + { + r <<= 1; + q <<= 1; + r |= lo >> 31; + + if ( r >= (FT_UInt32)y ) + { + r -= y; + q |= 1; + } + lo <<= 1; + } while ( --i ); + + return q; + } + + + static void + FT_Add64( FT_Int64* x, + FT_Int64* y, + FT_Int64 *z ) + { + register FT_UInt32 lo, hi; + + + lo = x->lo + y->lo; + hi = x->hi + y->hi + ( lo < x->lo ); + + z->lo = lo; + z->hi = hi; + } + + + /* documentation is in freetype.h */ + + /* The FT_MulDiv function has been optimized thanks to ideas from */ + /* Graham Asher. The trick is to optimize computation when everything */ + /* fits within 32-bits (a rather common case). */ + /* */ + /* we compute 'a*b+c/2', then divide it by 'c'. (positive values) */ + /* */ + /* 46340 is FLOOR(SQRT(2^31-1)). */ + /* */ + /* if ( a <= 46340 && b <= 46340 ) then ( a*b <= 0x7FFEA810 ) */ + /* */ + /* 0x7FFFFFFF - 0x7FFEA810 = 0x157F0 */ + /* */ + /* if ( c < 0x157F0*2 ) then ( a*b+c/2 <= 0x7FFFFFFF ) */ + /* */ + /* and 2*0x157F0 = 176096 */ + /* */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + long s; + + + /* XXX: this function does not allow 64-bit arguments */ + if ( a == 0 || b == c ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + s ^= c; c = FT_ABS( c ); + + if ( a <= 46340L && b <= 46340L && c <= 176095L && c > 0 ) + a = ( a * b + ( c >> 1 ) ) / c; + + else if ( c > 0 ) + { + FT_Int64 temp, temp2; + + + ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp ); + + temp2.hi = 0; + temp2.lo = (FT_UInt32)(c >> 1); + FT_Add64( &temp, &temp2, &temp ); + a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c ); + } + else + a = 0x7FFFFFFFL; + + return ( s < 0 ? -a : a ); + } + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_BASE_DEF( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ) + { + long s; + + + if ( a == 0 || b == c ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + s ^= c; c = FT_ABS( c ); + + if ( a <= 46340L && b <= 46340L && c > 0 ) + a = a * b / c; + + else if ( c > 0 ) + { + FT_Int64 temp; + + + ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp ); + a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c ); + } + else + a = 0x7FFFFFFFL; + + return ( s < 0 ? -a : a ); + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ) + { +#ifdef FT_MULFIX_ASSEMBLER + + return FT_MULFIX_ASSEMBLER( a, b ); + +#elif 0 + + /* + * This code is nonportable. See comment below. + * + * However, on a platform where right-shift of a signed quantity fills + * the leftmost bits by copying the sign bit, it might be faster. + */ + + FT_Long sa, sb; + FT_ULong ua, ub; + + + if ( a == 0 || b == 0x10000L ) + return a; + + /* + * This is a clever way of converting a signed number `a' into its + * absolute value (stored back into `a') and its sign. The sign is + * stored in `sa'; 0 means `a' was positive or zero, and -1 means `a' + * was negative. (Similarly for `b' and `sb'). + * + * Unfortunately, it doesn't work (at least not portably). + * + * It makes the assumption that right-shift on a negative signed value + * fills the leftmost bits by copying the sign bit. This is wrong. + * According to K&R 2nd ed, section `A7.8 Shift Operators' on page 206, + * the result of right-shift of a negative signed value is + * implementation-defined. At least one implementation fills the + * leftmost bits with 0s (i.e., it is exactly the same as an unsigned + * right shift). This means that when `a' is negative, `sa' ends up + * with the value 1 rather than -1. After that, everything else goes + * wrong. + */ + sa = ( a >> ( sizeof ( a ) * 8 - 1 ) ); + a = ( a ^ sa ) - sa; + sb = ( b >> ( sizeof ( b ) * 8 - 1 ) ); + b = ( b ^ sb ) - sb; + + ua = (FT_ULong)a; + ub = (FT_ULong)b; + + if ( ua <= 2048 && ub <= 1048576L ) + ua = ( ua * ub + 0x8000U ) >> 16; + else + { + FT_ULong al = ua & 0xFFFFU; + + + ua = ( ua >> 16 ) * ub + al * ( ub >> 16 ) + + ( ( al * ( ub & 0xFFFFU ) + 0x8000U ) >> 16 ); + } + + sa ^= sb, + ua = (FT_ULong)(( ua ^ sa ) - sa); + + return (FT_Long)ua; + +#else /* 0 */ + + FT_Long s; + FT_ULong ua, ub; + + + if ( a == 0 || b == 0x10000L ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + + ua = (FT_ULong)a; + ub = (FT_ULong)b; + + if ( ua <= 2048 && ub <= 1048576L ) + ua = ( ua * ub + 0x8000UL ) >> 16; + else + { + FT_ULong al = ua & 0xFFFFUL; + + + ua = ( ua >> 16 ) * ub + al * ( ub >> 16 ) + + ( ( al * ( ub & 0xFFFFUL ) + 0x8000UL ) >> 16 ); + } + + return ( s < 0 ? -(FT_Long)ua : (FT_Long)ua ); + +#endif /* 0 */ + + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ) + { + FT_Int32 s; + FT_UInt32 q; + + + /* XXX: this function does not allow 64-bit arguments */ + s = (FT_Int32)a; a = FT_ABS( a ); + s ^= (FT_Int32)b; b = FT_ABS( b ); + + if ( b == 0 ) + { + /* check for division by 0 */ + q = (FT_UInt32)0x7FFFFFFFL; + } + else if ( ( a >> 16 ) == 0 ) + { + /* compute result directly */ + q = (FT_UInt32)( (a << 16) + (b >> 1) ) / (FT_UInt32)b; + } + else + { + /* we need more bits; we have to do it by hand */ + FT_Int64 temp, temp2; + + temp.hi = (FT_Int32) (a >> 16); + temp.lo = (FT_UInt32)(a << 16); + temp2.hi = 0; + temp2.lo = (FT_UInt32)( b >> 1 ); + FT_Add64( &temp, &temp2, &temp ); + q = ft_div64by32( temp.hi, temp.lo, (FT_Int32)b ); + } + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + +#if 0 + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( void ) + FT_MulTo64( FT_Int32 x, + FT_Int32 y, + FT_Int64 *z ) + { + FT_Int32 s; + + + s = x; x = FT_ABS( x ); + s ^= y; y = FT_ABS( y ); + + ft_multo64( x, y, z ); + + if ( s < 0 ) + { + z->lo = (FT_UInt32)-(FT_Int32)z->lo; + z->hi = ~z->hi + !( z->lo ); + } + } + + + /* apparently, the second version of this code is not compiled correctly */ + /* on Mac machines with the MPW C compiler.. tsk, tsk, tsk... */ + +#if 1 + + FT_EXPORT_DEF( FT_Int32 ) + FT_Div64by32( FT_Int64* x, + FT_Int32 y ) + { + FT_Int32 s; + FT_UInt32 q, r, i, lo; + + + s = x->hi; + if ( s < 0 ) + { + x->lo = (FT_UInt32)-(FT_Int32)x->lo; + x->hi = ~x->hi + !x->lo; + } + s ^= y; y = FT_ABS( y ); + + /* Shortcut */ + if ( x->hi == 0 ) + { + if ( y > 0 ) + q = x->lo / y; + else + q = 0x7FFFFFFFL; + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + r = x->hi; + lo = x->lo; + + if ( r >= (FT_UInt32)y ) /* we know y is to be treated as unsigned here */ + return ( s < 0 ? 0x80000001UL : 0x7FFFFFFFUL ); + /* Return Max/Min Int32 if division overflow. */ + /* This includes division by zero! */ + q = 0; + for ( i = 0; i < 32; i++ ) + { + r <<= 1; + q <<= 1; + r |= lo >> 31; + + if ( r >= (FT_UInt32)y ) + { + r -= y; + q |= 1; + } + lo <<= 1; + } + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + +#else /* 0 */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_Div64by32( FT_Int64* x, + FT_Int32 y ) + { + FT_Int32 s; + FT_UInt32 q; + + + s = x->hi; + if ( s < 0 ) + { + x->lo = (FT_UInt32)-(FT_Int32)x->lo; + x->hi = ~x->hi + !x->lo; + } + s ^= y; y = FT_ABS( y ); + + /* Shortcut */ + if ( x->hi == 0 ) + { + if ( y > 0 ) + q = ( x->lo + ( y >> 1 ) ) / y; + else + q = 0x7FFFFFFFL; + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + q = ft_div64by32( x->hi, x->lo, y ); + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + +#endif /* 0 */ + +#endif /* 0 */ + + +#endif /* FT_LONG64 */ + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Matrix_Multiply( const FT_Matrix* a, + FT_Matrix *b ) + { + FT_Fixed xx, xy, yx, yy; + + + if ( !a || !b ) + return; + + xx = FT_MulFix( a->xx, b->xx ) + FT_MulFix( a->xy, b->yx ); + xy = FT_MulFix( a->xx, b->xy ) + FT_MulFix( a->xy, b->yy ); + yx = FT_MulFix( a->yx, b->xx ) + FT_MulFix( a->yy, b->yx ); + yy = FT_MulFix( a->yx, b->xy ) + FT_MulFix( a->yy, b->yy ); + + b->xx = xx; b->xy = xy; + b->yx = yx; b->yy = yy; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Matrix_Invert( FT_Matrix* matrix ) + { + FT_Pos delta, xx, yy; + + + if ( !matrix ) + return FT_Err_Invalid_Argument; + + /* compute discriminant */ + delta = FT_MulFix( matrix->xx, matrix->yy ) - + FT_MulFix( matrix->xy, matrix->yx ); + + if ( !delta ) + return FT_Err_Invalid_Argument; /* matrix can't be inverted */ + + matrix->xy = - FT_DivFix( matrix->xy, delta ); + matrix->yx = - FT_DivFix( matrix->yx, delta ); + + xx = matrix->xx; + yy = matrix->yy; + + matrix->xx = FT_DivFix( yy, delta ); + matrix->yy = FT_DivFix( xx, delta ); + + return FT_Err_Ok; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( void ) + FT_Matrix_Multiply_Scaled( const FT_Matrix* a, + FT_Matrix *b, + FT_Long scaling ) + { + FT_Fixed xx, xy, yx, yy; + + FT_Long val = 0x10000L * scaling; + + + if ( !a || !b ) + return; + + xx = FT_MulDiv( a->xx, b->xx, val ) + FT_MulDiv( a->xy, b->yx, val ); + xy = FT_MulDiv( a->xx, b->xy, val ) + FT_MulDiv( a->xy, b->yy, val ); + yx = FT_MulDiv( a->yx, b->xx, val ) + FT_MulDiv( a->yy, b->yx, val ); + yy = FT_MulDiv( a->yx, b->xy, val ) + FT_MulDiv( a->yy, b->yy, val ); + + b->xx = xx; b->xy = xy; + b->yx = yx; b->yy = yy; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( void ) + FT_Vector_Transform_Scaled( FT_Vector* vector, + const FT_Matrix* matrix, + FT_Long scaling ) + { + FT_Pos xz, yz; + + FT_Long val = 0x10000L * scaling; + + + if ( !vector || !matrix ) + return; + + xz = FT_MulDiv( vector->x, matrix->xx, val ) + + FT_MulDiv( vector->y, matrix->xy, val ); + + yz = FT_MulDiv( vector->x, matrix->yx, val ) + + FT_MulDiv( vector->y, matrix->yy, val ); + + vector->x = xz; + vector->y = yz; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Int32 ) + FT_SqrtFixed( FT_Int32 x ) + { + FT_UInt32 root, rem_hi, rem_lo, test_div; + FT_Int count; + + + root = 0; + + if ( x > 0 ) + { + rem_hi = 0; + rem_lo = x; + count = 24; + do + { + rem_hi = ( rem_hi << 2 ) | ( rem_lo >> 30 ); + rem_lo <<= 2; + root <<= 1; + test_div = ( root << 1 ) + 1; + + if ( rem_hi >= test_div ) + { + rem_hi -= test_div; + root += 1; + } + } while ( --count ); + } + + return (FT_Int32)root; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Int ) + ft_corner_orientation( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ) + { + FT_Long result; /* avoid overflow on 16-bit system */ + + + /* deal with the trivial cases quickly */ + if ( in_y == 0 ) + { + if ( in_x >= 0 ) + result = out_y; + else + result = -out_y; + } + else if ( in_x == 0 ) + { + if ( in_y >= 0 ) + result = -out_x; + else + result = out_x; + } + else if ( out_y == 0 ) + { + if ( out_x >= 0 ) + result = in_y; + else + result = -in_y; + } + else if ( out_x == 0 ) + { + if ( out_y >= 0 ) + result = -in_x; + else + result = in_x; + } + else /* general case */ + { +#ifdef FT_LONG64 + + FT_Int64 delta = (FT_Int64)in_x * out_y - (FT_Int64)in_y * out_x; + + + if ( delta == 0 ) + result = 0; + else + result = 1 - 2 * ( delta < 0 ); + +#else + + FT_Int64 z1, z2; + + + /* XXX: this function does not allow 64-bit arguments */ + ft_multo64( (FT_Int32)in_x, (FT_Int32)out_y, &z1 ); + ft_multo64( (FT_Int32)in_y, (FT_Int32)out_x, &z2 ); + + if ( z1.hi > z2.hi ) + result = +1; + else if ( z1.hi < z2.hi ) + result = -1; + else if ( z1.lo > z2.lo ) + result = +1; + else if ( z1.lo < z2.lo ) + result = -1; + else + result = 0; + +#endif + } + + /* XXX: only the sign of return value, +1/0/-1 must be used */ + return (FT_Int)result; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Int ) + ft_corner_is_flat( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ) + { + FT_Pos ax = in_x; + FT_Pos ay = in_y; + + FT_Pos d_in, d_out, d_corner; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + d_in = ax + ay; + + ax = out_x; + if ( ax < 0 ) + ax = -ax; + ay = out_y; + if ( ay < 0 ) + ay = -ay; + d_out = ax + ay; + + ax = out_x + in_x; + if ( ax < 0 ) + ax = -ax; + ay = out_y + in_y; + if ( ay < 0 ) + ay = -ay; + d_corner = ax + ay; + + return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftcid.c b/uppsrc/plugin/FT_fontsys/src/base/ftcid.c new file mode 100644 index 000000000..81e142cbd --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftcid.c @@ -0,0 +1,117 @@ +/***************************************************************************/ +/* */ +/* ftcid.c */ +/* */ +/* FreeType API for accessing CID font information. */ +/* */ +/* Copyright 2007, 2009 by Derek Clegg, Michael Toftdal. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CID_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_CID_H + + + /* documentation is in ftcid.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_CID_Registry_Ordering_Supplement( FT_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement) + { + FT_Error error; + const char* r = NULL; + const char* o = NULL; + FT_Int s = 0; + + + error = FT_Err_Invalid_Argument; + + if ( face ) + { + FT_Service_CID service; + + + FT_FACE_FIND_SERVICE( face, service, CID ); + + if ( service && service->get_ros ) + error = service->get_ros( face, &r, &o, &s ); + } + + if ( registry ) + *registry = r; + + if ( ordering ) + *ordering = o; + + if ( supplement ) + *supplement = s; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face, + FT_Bool *is_cid ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Bool ic = 0; + + + if ( face ) + { + FT_Service_CID service; + + + FT_FACE_FIND_SERVICE( face, service, CID ); + + if ( service && service->get_is_cid ) + error = service->get_is_cid( face, &ic); + } + + if ( is_cid ) + *is_cid = ic; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_CID_From_Glyph_Index( FT_Face face, + FT_UInt glyph_index, + FT_UInt *cid ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_UInt c = 0; + + + if ( face ) + { + FT_Service_CID service; + + + FT_FACE_FIND_SERVICE( face, service, CID ); + + if ( service && service->get_cid_from_glyph_index ) + error = service->get_cid_from_glyph_index( face, glyph_index, &c); + } + + if ( cid ) + *cid = c; + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftdbgmem.c b/uppsrc/plugin/FT_fontsys/src/base/ftdbgmem.c new file mode 100644 index 000000000..3446d2819 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftdbgmem.c @@ -0,0 +1,997 @@ +/***************************************************************************/ +/* */ +/* ftdbgmem.c */ +/* */ +/* Memory debugger (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_MEMORY_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + + +#ifdef FT_DEBUG_MEMORY + +#define KEEPALIVE /* `Keep alive' means that freed blocks aren't released + * to the heap. This is useful to detect double-frees + * or weird heap corruption, but it uses large amounts of + * memory, however. + */ + +#include FT_CONFIG_STANDARD_LIBRARY_H + + FT_BASE_DEF( const char* ) _ft_debug_file = 0; + FT_BASE_DEF( long ) _ft_debug_lineno = 0; + + extern void + FT_DumpMemory( FT_Memory memory ); + + + typedef struct FT_MemSourceRec_* FT_MemSource; + typedef struct FT_MemNodeRec_* FT_MemNode; + typedef struct FT_MemTableRec_* FT_MemTable; + + +#define FT_MEM_VAL( addr ) ((FT_PtrDist)(FT_Pointer)( addr )) + + /* + * This structure holds statistics for a single allocation/release + * site. This is useful to know where memory operations happen the + * most. + */ + typedef struct FT_MemSourceRec_ + { + const char* file_name; + long line_no; + + FT_Long cur_blocks; /* current number of allocated blocks */ + FT_Long max_blocks; /* max. number of allocated blocks */ + FT_Long all_blocks; /* total number of blocks allocated */ + + FT_Long cur_size; /* current cumulative allocated size */ + FT_Long max_size; /* maximum cumulative allocated size */ + FT_Long all_size; /* total cumulative allocated size */ + + FT_Long cur_max; /* current maximum allocated size */ + + FT_UInt32 hash; + FT_MemSource link; + + } FT_MemSourceRec; + + + /* + * We don't need a resizable array for the memory sources, because + * their number is pretty limited within FreeType. + */ +#define FT_MEM_SOURCE_BUCKETS 128 + + /* + * This structure holds information related to a single allocated + * memory block. If KEEPALIVE is defined, blocks that are freed by + * FreeType are never released to the system. Instead, their `size' + * field is set to -size. This is mainly useful to detect double frees, + * at the price of large memory footprint during execution. + */ + typedef struct FT_MemNodeRec_ + { + FT_Byte* address; + FT_Long size; /* < 0 if the block was freed */ + + FT_MemSource source; + +#ifdef KEEPALIVE + const char* free_file_name; + FT_Long free_line_no; +#endif + + FT_MemNode link; + + } FT_MemNodeRec; + + + /* + * The global structure, containing compound statistics and all hash + * tables. + */ + typedef struct FT_MemTableRec_ + { + FT_ULong size; + FT_ULong nodes; + FT_MemNode* buckets; + + FT_ULong alloc_total; + FT_ULong alloc_current; + FT_ULong alloc_max; + FT_ULong alloc_count; + + FT_Bool bound_total; + FT_ULong alloc_total_max; + + FT_Bool bound_count; + FT_ULong alloc_count_max; + + FT_MemSource sources[FT_MEM_SOURCE_BUCKETS]; + + FT_Bool keep_alive; + + FT_Memory memory; + FT_Pointer memory_user; + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + + } FT_MemTableRec; + + +#define FT_MEM_SIZE_MIN 7 +#define FT_MEM_SIZE_MAX 13845163 + +#define FT_FILENAME( x ) ((x) ? (x) : "unknown file") + + + /* + * Prime numbers are ugly to handle. It would be better to implement + * L-Hashing, which is 10% faster and doesn't require divisions. + */ + static const FT_UInt ft_mem_primes[] = + { + 7, + 11, + 19, + 37, + 73, + 109, + 163, + 251, + 367, + 557, + 823, + 1237, + 1861, + 2777, + 4177, + 6247, + 9371, + 14057, + 21089, + 31627, + 47431, + 71143, + 106721, + 160073, + 240101, + 360163, + 540217, + 810343, + 1215497, + 1823231, + 2734867, + 4102283, + 6153409, + 9230113, + 13845163, + }; + + + static FT_ULong + ft_mem_closest_prime( FT_ULong num ) + { + FT_UInt i; + + + for ( i = 0; + i < sizeof ( ft_mem_primes ) / sizeof ( ft_mem_primes[0] ); i++ ) + if ( ft_mem_primes[i] > num ) + return ft_mem_primes[i]; + + return FT_MEM_SIZE_MAX; + } + + + extern void + ft_mem_debug_panic( const char* fmt, + ... ) + { + va_list ap; + + + printf( "FreeType.Debug: " ); + + va_start( ap, fmt ); + vprintf( fmt, ap ); + va_end( ap ); + + printf( "\n" ); + exit( EXIT_FAILURE ); + } + + + static FT_Pointer + ft_mem_table_alloc( FT_MemTable table, + FT_Long size ) + { + FT_Memory memory = table->memory; + FT_Pointer block; + + + memory->user = table->memory_user; + block = table->alloc( memory, size ); + memory->user = table; + + return block; + } + + + static void + ft_mem_table_free( FT_MemTable table, + FT_Pointer block ) + { + FT_Memory memory = table->memory; + + + memory->user = table->memory_user; + table->free( memory, block ); + memory->user = table; + } + + + static void + ft_mem_table_resize( FT_MemTable table ) + { + FT_ULong new_size; + + + new_size = ft_mem_closest_prime( table->nodes ); + if ( new_size != table->size ) + { + FT_MemNode* new_buckets; + FT_ULong i; + + + new_buckets = (FT_MemNode *) + ft_mem_table_alloc( table, + new_size * sizeof ( FT_MemNode ) ); + if ( new_buckets == NULL ) + return; + + FT_ARRAY_ZERO( new_buckets, new_size ); + + for ( i = 0; i < table->size; i++ ) + { + FT_MemNode node, next, *pnode; + FT_PtrDist hash; + + + node = table->buckets[i]; + while ( node ) + { + next = node->link; + hash = FT_MEM_VAL( node->address ) % new_size; + pnode = new_buckets + hash; + + node->link = pnode[0]; + pnode[0] = node; + + node = next; + } + } + + if ( table->buckets ) + ft_mem_table_free( table, table->buckets ); + + table->buckets = new_buckets; + table->size = new_size; + } + } + + + static FT_MemTable + ft_mem_table_new( FT_Memory memory ) + { + FT_MemTable table; + + + table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) ); + if ( table == NULL ) + goto Exit; + + FT_ZERO( table ); + + table->size = FT_MEM_SIZE_MIN; + table->nodes = 0; + + table->memory = memory; + + table->memory_user = memory->user; + + table->alloc = memory->alloc; + table->realloc = memory->realloc; + table->free = memory->free; + + table->buckets = (FT_MemNode *) + memory->alloc( memory, + table->size * sizeof ( FT_MemNode ) ); + if ( table->buckets ) + FT_ARRAY_ZERO( table->buckets, table->size ); + else + { + memory->free( memory, table ); + table = NULL; + } + + Exit: + return table; + } + + + static void + ft_mem_table_destroy( FT_MemTable table ) + { + FT_ULong i; + + + FT_DumpMemory( table->memory ); + + if ( table ) + { + FT_Long leak_count = 0; + FT_ULong leaks = 0; + + + /* remove all blocks from the table, revealing leaked ones */ + for ( i = 0; i < table->size; i++ ) + { + FT_MemNode *pnode = table->buckets + i, next, node = *pnode; + + + while ( node ) + { + next = node->link; + node->link = 0; + + if ( node->size > 0 ) + { + printf( + "leaked memory block at address %p, size %8ld in (%s:%ld)\n", + node->address, node->size, + FT_FILENAME( node->source->file_name ), + node->source->line_no ); + + leak_count++; + leaks += node->size; + + ft_mem_table_free( table, node->address ); + } + + node->address = NULL; + node->size = 0; + + ft_mem_table_free( table, node ); + node = next; + } + table->buckets[i] = 0; + } + + ft_mem_table_free( table, table->buckets ); + table->buckets = NULL; + + table->size = 0; + table->nodes = 0; + + /* remove all sources */ + for ( i = 0; i < FT_MEM_SOURCE_BUCKETS; i++ ) + { + FT_MemSource source, next; + + + for ( source = table->sources[i]; source != NULL; source = next ) + { + next = source->link; + ft_mem_table_free( table, source ); + } + + table->sources[i] = NULL; + } + + printf( + "FreeType: total memory allocations = %ld\n", table->alloc_total ); + printf( + "FreeType: maximum memory footprint = %ld\n", table->alloc_max ); + + ft_mem_table_free( table, table ); + + if ( leak_count > 0 ) + ft_mem_debug_panic( + "FreeType: %ld bytes of memory leaked in %ld blocks\n", + leaks, leak_count ); + + printf( "FreeType: no memory leaks detected\n" ); + } + } + + + static FT_MemNode* + ft_mem_table_get_nodep( FT_MemTable table, + FT_Byte* address ) + { + FT_PtrDist hash; + FT_MemNode *pnode, node; + + + hash = FT_MEM_VAL( address ); + pnode = table->buckets + ( hash % table->size ); + + for (;;) + { + node = pnode[0]; + if ( !node ) + break; + + if ( node->address == address ) + break; + + pnode = &node->link; + } + return pnode; + } + + + static FT_MemSource + ft_mem_table_get_source( FT_MemTable table ) + { + FT_UInt32 hash; + FT_MemSource node, *pnode; + + + /* cast to FT_PtrDist first since void* can be larger */ + /* than FT_UInt32 and GCC 4.1.1 emits a warning */ + hash = (FT_UInt32)(FT_PtrDist)(void*)_ft_debug_file + + (FT_UInt32)( 5 * _ft_debug_lineno ); + pnode = &table->sources[hash % FT_MEM_SOURCE_BUCKETS]; + + for ( ;; ) + { + node = *pnode; + if ( node == NULL ) + break; + + if ( node->file_name == _ft_debug_file && + node->line_no == _ft_debug_lineno ) + goto Exit; + + pnode = &node->link; + } + + node = (FT_MemSource)ft_mem_table_alloc( table, sizeof ( *node ) ); + if ( node == NULL ) + ft_mem_debug_panic( + "not enough memory to perform memory debugging\n" ); + + node->file_name = _ft_debug_file; + node->line_no = _ft_debug_lineno; + + node->cur_blocks = 0; + node->max_blocks = 0; + node->all_blocks = 0; + + node->cur_size = 0; + node->max_size = 0; + node->all_size = 0; + + node->cur_max = 0; + + node->link = NULL; + node->hash = hash; + *pnode = node; + + Exit: + return node; + } + + + static void + ft_mem_table_set( FT_MemTable table, + FT_Byte* address, + FT_ULong size, + FT_Long delta ) + { + FT_MemNode *pnode, node; + + + if ( table ) + { + FT_MemSource source; + + + pnode = ft_mem_table_get_nodep( table, address ); + node = *pnode; + if ( node ) + { + if ( node->size < 0 ) + { + /* This block was already freed. Our memory is now completely */ + /* corrupted! */ + /* This can only happen in keep-alive mode. */ + ft_mem_debug_panic( + "memory heap corrupted (allocating freed block)" ); + } + else + { + /* This block was already allocated. This means that our memory */ + /* is also corrupted! */ + ft_mem_debug_panic( + "memory heap corrupted (re-allocating allocated block at" + " %p, of size %ld)\n" + "org=%s:%d new=%s:%d\n", + node->address, node->size, + FT_FILENAME( node->source->file_name ), node->source->line_no, + FT_FILENAME( _ft_debug_file ), _ft_debug_lineno ); + } + } + + /* we need to create a new node in this table */ + node = (FT_MemNode)ft_mem_table_alloc( table, sizeof ( *node ) ); + if ( node == NULL ) + ft_mem_debug_panic( "not enough memory to run memory tests" ); + + node->address = address; + node->size = size; + node->source = source = ft_mem_table_get_source( table ); + + if ( delta == 0 ) + { + /* this is an allocation */ + source->all_blocks++; + source->cur_blocks++; + if ( source->cur_blocks > source->max_blocks ) + source->max_blocks = source->cur_blocks; + } + + if ( size > (FT_ULong)source->cur_max ) + source->cur_max = size; + + if ( delta != 0 ) + { + /* we are growing or shrinking a reallocated block */ + source->cur_size += delta; + table->alloc_current += delta; + } + else + { + /* we are allocating a new block */ + source->cur_size += size; + table->alloc_current += size; + } + + source->all_size += size; + + if ( source->cur_size > source->max_size ) + source->max_size = source->cur_size; + + node->free_file_name = NULL; + node->free_line_no = 0; + + node->link = pnode[0]; + + pnode[0] = node; + table->nodes++; + + table->alloc_total += size; + + if ( table->alloc_current > table->alloc_max ) + table->alloc_max = table->alloc_current; + + if ( table->nodes * 3 < table->size || + table->size * 3 < table->nodes ) + ft_mem_table_resize( table ); + } + } + + + static void + ft_mem_table_remove( FT_MemTable table, + FT_Byte* address, + FT_Long delta ) + { + if ( table ) + { + FT_MemNode *pnode, node; + + + pnode = ft_mem_table_get_nodep( table, address ); + node = *pnode; + if ( node ) + { + FT_MemSource source; + + + if ( node->size < 0 ) + ft_mem_debug_panic( + "freeing memory block at %p more than once at (%s:%ld)\n" + "block allocated at (%s:%ld) and released at (%s:%ld)", + address, + FT_FILENAME( _ft_debug_file ), _ft_debug_lineno, + FT_FILENAME( node->source->file_name ), node->source->line_no, + FT_FILENAME( node->free_file_name ), node->free_line_no ); + + /* scramble the node's content for additional safety */ + FT_MEM_SET( address, 0xF3, node->size ); + + if ( delta == 0 ) + { + source = node->source; + + source->cur_blocks--; + source->cur_size -= node->size; + + table->alloc_current -= node->size; + } + + if ( table->keep_alive ) + { + /* we simply invert the node's size to indicate that the node */ + /* was freed. */ + node->size = -node->size; + node->free_file_name = _ft_debug_file; + node->free_line_no = _ft_debug_lineno; + } + else + { + table->nodes--; + + *pnode = node->link; + + node->size = 0; + node->source = NULL; + + ft_mem_table_free( table, node ); + + if ( table->nodes * 3 < table->size || + table->size * 3 < table->nodes ) + ft_mem_table_resize( table ); + } + } + else + ft_mem_debug_panic( + "trying to free unknown block at %p in (%s:%ld)\n", + address, + FT_FILENAME( _ft_debug_file ), _ft_debug_lineno ); + } + } + + + extern FT_Pointer + ft_mem_debug_alloc( FT_Memory memory, + FT_Long size ) + { + FT_MemTable table = (FT_MemTable)memory->user; + FT_Byte* block; + + + if ( size <= 0 ) + ft_mem_debug_panic( "negative block size allocation (%ld)", size ); + + /* return NULL if the maximum number of allocations was reached */ + if ( table->bound_count && + table->alloc_count >= table->alloc_count_max ) + return NULL; + + /* return NULL if this allocation would overflow the maximum heap size */ + if ( table->bound_total && + table->alloc_total_max - table->alloc_current > (FT_ULong)size ) + return NULL; + + block = (FT_Byte *)ft_mem_table_alloc( table, size ); + if ( block ) + { + ft_mem_table_set( table, block, (FT_ULong)size, 0 ); + + table->alloc_count++; + } + + _ft_debug_file = "<unknown>"; + _ft_debug_lineno = 0; + + return (FT_Pointer)block; + } + + + extern void + ft_mem_debug_free( FT_Memory memory, + FT_Pointer block ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( block == NULL ) + ft_mem_debug_panic( "trying to free NULL in (%s:%ld)", + FT_FILENAME( _ft_debug_file ), + _ft_debug_lineno ); + + ft_mem_table_remove( table, (FT_Byte*)block, 0 ); + + if ( !table->keep_alive ) + ft_mem_table_free( table, block ); + + table->alloc_count--; + + _ft_debug_file = "<unknown>"; + _ft_debug_lineno = 0; + } + + + extern FT_Pointer + ft_mem_debug_realloc( FT_Memory memory, + FT_Long cur_size, + FT_Long new_size, + FT_Pointer block ) + { + FT_MemTable table = (FT_MemTable)memory->user; + FT_MemNode node, *pnode; + FT_Pointer new_block; + FT_Long delta; + + const char* file_name = FT_FILENAME( _ft_debug_file ); + FT_Long line_no = _ft_debug_lineno; + + + /* unlikely, but possible */ + if ( new_size == cur_size ) + return block; + + /* the following is valid according to ANSI C */ +#if 0 + if ( block == NULL || cur_size == 0 ) + ft_mem_debug_panic( "trying to reallocate NULL in (%s:%ld)", + file_name, line_no ); +#endif + + /* while the following is allowed in ANSI C also, we abort since */ + /* such case should be handled by FreeType. */ + if ( new_size <= 0 ) + ft_mem_debug_panic( + "trying to reallocate %p to size 0 (current is %ld) in (%s:%ld)", + block, cur_size, file_name, line_no ); + + /* check `cur_size' value */ + pnode = ft_mem_table_get_nodep( table, (FT_Byte*)block ); + node = *pnode; + if ( !node ) + ft_mem_debug_panic( + "trying to reallocate unknown block at %p in (%s:%ld)", + block, file_name, line_no ); + + if ( node->size <= 0 ) + ft_mem_debug_panic( + "trying to reallocate freed block at %p in (%s:%ld)", + block, file_name, line_no ); + + if ( node->size != cur_size ) + ft_mem_debug_panic( "invalid ft_realloc request for %p. cur_size is " + "%ld instead of %ld in (%s:%ld)", + block, cur_size, node->size, file_name, line_no ); + + /* return NULL if the maximum number of allocations was reached */ + if ( table->bound_count && + table->alloc_count >= table->alloc_count_max ) + return NULL; + + delta = (FT_Long)( new_size - cur_size ); + + /* return NULL if this allocation would overflow the maximum heap size */ + if ( delta > 0 && + table->bound_total && + table->alloc_current + (FT_ULong)delta > table->alloc_total_max ) + return NULL; + + new_block = (FT_Byte *)ft_mem_table_alloc( table, new_size ); + if ( new_block == NULL ) + return NULL; + + ft_mem_table_set( table, (FT_Byte*)new_block, new_size, delta ); + + ft_memcpy( new_block, block, cur_size < new_size ? cur_size : new_size ); + + ft_mem_table_remove( table, (FT_Byte*)block, delta ); + + _ft_debug_file = "<unknown>"; + _ft_debug_lineno = 0; + + if ( !table->keep_alive ) + ft_mem_table_free( table, block ); + + return new_block; + } + + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ) + { + FT_MemTable table; + FT_Int result = 0; + + + if ( getenv( "FT2_DEBUG_MEMORY" ) ) + { + table = ft_mem_table_new( memory ); + if ( table ) + { + const char* p; + + + memory->user = table; + memory->alloc = ft_mem_debug_alloc; + memory->realloc = ft_mem_debug_realloc; + memory->free = ft_mem_debug_free; + + p = getenv( "FT2_ALLOC_TOTAL_MAX" ); + if ( p != NULL ) + { + FT_Long total_max = ft_atol( p ); + + + if ( total_max > 0 ) + { + table->bound_total = 1; + table->alloc_total_max = (FT_ULong)total_max; + } + } + + p = getenv( "FT2_ALLOC_COUNT_MAX" ); + if ( p != NULL ) + { + FT_Long total_count = ft_atol( p ); + + + if ( total_count > 0 ) + { + table->bound_count = 1; + table->alloc_count_max = (FT_ULong)total_count; + } + } + + p = getenv( "FT2_KEEP_ALIVE" ); + if ( p != NULL ) + { + FT_Long keep_alive = ft_atol( p ); + + + if ( keep_alive > 0 ) + table->keep_alive = 1; + } + + result = 1; + } + } + return result; + } + + + extern void + ft_mem_debug_done( FT_Memory memory ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + memory->free = table->free; + memory->realloc = table->realloc; + memory->alloc = table->alloc; + + ft_mem_table_destroy( table ); + memory->user = NULL; + } + } + + + + static int + ft_mem_source_compare( const void* p1, + const void* p2 ) + { + FT_MemSource s1 = *(FT_MemSource*)p1; + FT_MemSource s2 = *(FT_MemSource*)p2; + + + if ( s2->max_size > s1->max_size ) + return 1; + else if ( s2->max_size < s1->max_size ) + return -1; + else + return 0; + } + + + extern void + FT_DumpMemory( FT_Memory memory ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + FT_MemSource* bucket = table->sources; + FT_MemSource* limit = bucket + FT_MEM_SOURCE_BUCKETS; + FT_MemSource* sources; + FT_UInt nn, count; + const char* fmt; + + + count = 0; + for ( ; bucket < limit; bucket++ ) + { + FT_MemSource source = *bucket; + + + for ( ; source; source = source->link ) + count++; + } + + sources = (FT_MemSource*)ft_mem_table_alloc( + table, sizeof ( *sources ) * count ); + + count = 0; + for ( bucket = table->sources; bucket < limit; bucket++ ) + { + FT_MemSource source = *bucket; + + + for ( ; source; source = source->link ) + sources[count++] = source; + } + + ft_qsort( sources, count, sizeof ( *sources ), ft_mem_source_compare ); + + printf( "FreeType Memory Dump: " + "current=%ld max=%ld total=%ld count=%ld\n", + table->alloc_current, table->alloc_max, + table->alloc_total, table->alloc_count ); + printf( " block block sizes sizes sizes source\n" ); + printf( " count high sum highsum max location\n" ); + printf( "-------------------------------------------------\n" ); + + fmt = "%6ld %6ld %8ld %8ld %8ld %s:%d\n"; + + for ( nn = 0; nn < count; nn++ ) + { + FT_MemSource source = sources[nn]; + + + printf( fmt, + source->cur_blocks, source->max_blocks, + source->cur_size, source->max_size, source->cur_max, + FT_FILENAME( source->file_name ), + source->line_no ); + } + printf( "------------------------------------------------\n" ); + + ft_mem_table_free( table, sources ); + } + } + +#else /* !FT_DEBUG_MEMORY */ + + /* ANSI C doesn't like empty source files */ + typedef int _debug_mem_dummy; + +#endif /* !FT_DEBUG_MEMORY */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftdebug.c b/uppsrc/plugin/FT_fontsys/src/base/ftdebug.c new file mode 100644 index 000000000..e2ef918b8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftdebug.c @@ -0,0 +1,246 @@ +/***************************************************************************/ +/* */ +/* ftdebug.c */ +/* */ +/* Debugging and logging component (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component contains various macros and functions used to ease the */ + /* debugging of the FreeType engine. Its main purpose is in assertion */ + /* checking, tracing, and error detection. */ + /* */ + /* There are now three debugging modes: */ + /* */ + /* - trace mode */ + /* */ + /* Error and trace messages are sent to the log file (which can be the */ + /* standard error output). */ + /* */ + /* - error mode */ + /* */ + /* Only error messages are generated. */ + /* */ + /* - release mode: */ + /* */ + /* No error message is sent or generated. The code is free from any */ + /* debugging parts. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H + + +#ifdef FT_DEBUG_LEVEL_ERROR + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( void ) + FT_Message( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vfprintf( stderr, fmt, ap ); + va_end( ap ); + } + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( void ) + FT_Panic( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vfprintf( stderr, fmt, ap ); + va_end( ap ); + + exit( EXIT_FAILURE ); + } + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* array of trace levels, initialized to 0 */ + int ft_trace_levels[trace_count]; + + + /* define array of trace toggle names */ +#define FT_TRACE_DEF( x ) #x , + + static const char* ft_trace_toggles[trace_count + 1] = + { +#include FT_INTERNAL_TRACE_H + NULL + }; + +#undef FT_TRACE_DEF + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return trace_count; + } + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + int max = FT_Trace_Get_Count(); + + + if ( idx < max ) + return ft_trace_toggles[idx]; + else + return NULL; + } + + + /*************************************************************************/ + /* */ + /* Initialize the tracing sub-system. This is done by retrieving the */ + /* value of the `FT2_DEBUG' environment variable. It must be a list of */ + /* toggles, separated by spaces, `;', or `,'. Example: */ + /* */ + /* export FT2_DEBUG="any:3 memory:7 stream:5" */ + /* */ + /* This requests that all levels be set to 3, except the trace level for */ + /* the memory and stream components which are set to 7 and 5, */ + /* respectively. */ + /* */ + /* See the file <include/freetype/internal/fttrace.h> for details of the */ + /* available toggle names. */ + /* */ + /* The level must be between 0 and 7; 0 means quiet (except for serious */ + /* runtime errors), and 7 means _very_ verbose. */ + /* */ + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + const char* ft2_debug = getenv( "FT2_DEBUG" ); + + + if ( ft2_debug ) + { + const char* p = ft2_debug; + const char* q; + + + for ( ; *p; p++ ) + { + /* skip leading whitespace and separators */ + if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) + continue; + + /* read toggle name, followed by ':' */ + q = p; + while ( *p && *p != ':' ) + p++; + + if ( *p == ':' && p > q ) + { + FT_Int n, i, len = (FT_Int)( p - q ); + FT_Int level = -1, found = -1; + + + for ( n = 0; n < trace_count; n++ ) + { + const char* toggle = ft_trace_toggles[n]; + + + for ( i = 0; i < len; i++ ) + { + if ( toggle[i] != q[i] ) + break; + } + + if ( i == len && toggle[i] == 0 ) + { + found = n; + break; + } + } + + /* read level */ + p++; + if ( *p ) + { + level = *p++ - '0'; + if ( level < 0 || level > 7 ) + level = -1; + } + + if ( found >= 0 && level >= 0 ) + { + if ( found == trace_any ) + { + /* special case for `any' */ + for ( n = 0; n < trace_count; n++ ) + ft_trace_levels[n] = level; + } + else + ft_trace_levels[found] = level; + } + } + } + } + } + + +#else /* !FT_DEBUG_LEVEL_TRACE */ + + + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* nothing */ + } + + + FT_BASE_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return 0; + } + + + FT_BASE_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + FT_UNUSED( idx ); + + return NULL; + } + + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftfstype.c b/uppsrc/plugin/FT_fontsys/src/base/ftfstype.c new file mode 100644 index 000000000..7bc491495 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftfstype.c @@ -0,0 +1,62 @@ +/***************************************************************************/ +/* */ +/* ftfstype.c */ +/* */ +/* FreeType utility file to access FSType data (body). */ +/* */ +/* Copyright 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_TYPE1_TABLES_H +#include FT_TRUETYPE_TABLES_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UShort ) + FT_Get_FSType_Flags( FT_Face face ) + { + TT_OS2* os2; + + + /* first, try to get the fs_type directly from the font */ + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_extra ) + { + PS_FontExtraRec extra; + + + if ( !service->ps_get_font_extra( face, &extra ) && + extra.fs_type != 0 ) + return extra.fs_type; + } + } + + /* look at FSType before fsType for Type42 */ + + if ( ( os2 = (TT_OS2*)FT_Get_Sfnt_Table( face, ft_sfnt_os2 ) ) != NULL && + os2->version != 0xFFFFU ) + return os2->fsType; + + return 0; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftgasp.c b/uppsrc/plugin/FT_fontsys/src/base/ftgasp.c new file mode 100644 index 000000000..2fc4a57f4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftgasp.c @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* ftgasp.c */ +/* */ +/* Access of TrueType's `gasp' table (body). */ +/* */ +/* Copyright 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_GASP_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + + FT_EXPORT_DEF( FT_Int ) + FT_Get_Gasp( FT_Face face, + FT_UInt ppem ) + { + FT_Int result = FT_GASP_NO_TABLE; + + + if ( face && FT_IS_SFNT( face ) ) + { + TT_Face ttface = (TT_Face)face; + + + if ( ttface->gasp.numRanges > 0 ) + { + TT_GaspRange range = ttface->gasp.gaspRanges; + TT_GaspRange range_end = range + ttface->gasp.numRanges; + + + while ( ppem > range->maxPPEM ) + { + range++; + if ( range >= range_end ) + goto Exit; + } + + result = range->gaspFlag; + + /* ensure that we don't have spurious bits */ + if ( ttface->gasp.version == 0 ) + result &= 3; + } + } + Exit: + return result; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftgloadr.c b/uppsrc/plugin/FT_fontsys/src/base/ftgloadr.c new file mode 100644 index 000000000..60c6047ae --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftgloadr.c @@ -0,0 +1,401 @@ +/***************************************************************************/ +/* */ +/* ftgloadr.c */ +/* */ +/* The FreeType glyph loader (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_GLYPH_LOADER_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H + +#undef FT_COMPONENT +#define FT_COMPONENT trace_gloader + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** G L Y P H L O A D E R *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* The glyph loader is a simple object which is used to load a set of */ + /* glyphs easily. It is critical for the correct loading of composites. */ + /* */ + /* Ideally, one can see it as a stack of abstract `glyph' objects. */ + /* */ + /* loader.base Is really the bottom of the stack. It describes a */ + /* single glyph image made of the juxtaposition of */ + /* several glyphs (those `in the stack'). */ + /* */ + /* loader.current Describes the top of the stack, on which a new */ + /* glyph can be loaded. */ + /* */ + /* Rewind Clears the stack. */ + /* Prepare Set up `loader.current' for addition of a new glyph */ + /* image. */ + /* Add Add the `current' glyph image to the `base' one, */ + /* and prepare for another one. */ + /* */ + /* The glyph loader is now a base object. Each driver used to */ + /* re-implement it in one way or the other, which wasted code and */ + /* energy. */ + /* */ + /*************************************************************************/ + + + /* create a new glyph loader */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_New( FT_Memory memory, + FT_GlyphLoader *aloader ) + { + FT_GlyphLoader loader = NULL; + FT_Error error; + + + if ( !FT_NEW( loader ) ) + { + loader->memory = memory; + *aloader = loader; + } + return error; + } + + + /* rewind the glyph loader - reset counters to 0 */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Rewind( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + base->outline.n_points = 0; + base->outline.n_contours = 0; + base->num_subglyphs = 0; + + *current = *base; + } + + + /* reset the glyph loader, frees all allocated tables */ + /* and starts from zero */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Reset( FT_GlyphLoader loader ) + { + FT_Memory memory = loader->memory; + + + FT_FREE( loader->base.outline.points ); + FT_FREE( loader->base.outline.tags ); + FT_FREE( loader->base.outline.contours ); + FT_FREE( loader->base.extra_points ); + FT_FREE( loader->base.subglyphs ); + + loader->base.extra_points2 = NULL; + + loader->max_points = 0; + loader->max_contours = 0; + loader->max_subglyphs = 0; + + FT_GlyphLoader_Rewind( loader ); + } + + + /* delete a glyph loader */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Done( FT_GlyphLoader loader ) + { + if ( loader ) + { + FT_Memory memory = loader->memory; + + + FT_GlyphLoader_Reset( loader ); + FT_FREE( loader ); + } + } + + + /* re-adjust the `current' outline fields */ + static void + FT_GlyphLoader_Adjust_Points( FT_GlyphLoader loader ) + { + FT_Outline* base = &loader->base.outline; + FT_Outline* current = &loader->current.outline; + + + current->points = base->points + base->n_points; + current->tags = base->tags + base->n_points; + current->contours = base->contours + base->n_contours; + + /* handle extra points table - if any */ + if ( loader->use_extra ) + { + loader->current.extra_points = loader->base.extra_points + + base->n_points; + + loader->current.extra_points2 = loader->base.extra_points2 + + base->n_points; + } + } + + + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader ) + { + FT_Error error; + FT_Memory memory = loader->memory; + + + if ( !FT_NEW_ARRAY( loader->base.extra_points, 2 * loader->max_points ) ) + { + loader->use_extra = 1; + loader->base.extra_points2 = loader->base.extra_points + + loader->max_points; + + FT_GlyphLoader_Adjust_Points( loader ); + } + return error; + } + + + /* re-adjust the `current' subglyphs field */ + static void + FT_GlyphLoader_Adjust_Subglyphs( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + current->subglyphs = base->subglyphs + base->num_subglyphs; + } + + + /* Ensure that we can add `n_points' and `n_contours' to our glyph. */ + /* This function reallocates its outline tables if necessary. Note that */ + /* it DOESN'T change the number of points within the loader! */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader, + FT_UInt n_points, + FT_UInt n_contours ) + { + FT_Memory memory = loader->memory; + FT_Error error = FT_Err_Ok; + FT_Outline* base = &loader->base.outline; + FT_Outline* current = &loader->current.outline; + FT_Bool adjust = 0; + + FT_UInt new_max, old_max; + + + /* check points & tags */ + new_max = base->n_points + current->n_points + n_points; + old_max = loader->max_points; + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + + if ( new_max > FT_OUTLINE_POINTS_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) || + FT_RENEW_ARRAY( base->tags, old_max, new_max ) ) + goto Exit; + + if ( loader->use_extra ) + { + if ( FT_RENEW_ARRAY( loader->base.extra_points, + old_max * 2, new_max * 2 ) ) + goto Exit; + + FT_ARRAY_MOVE( loader->base.extra_points + new_max, + loader->base.extra_points + old_max, + old_max ); + + loader->base.extra_points2 = loader->base.extra_points + new_max; + } + + adjust = 1; + loader->max_points = new_max; + } + + /* check contours */ + old_max = loader->max_contours; + new_max = base->n_contours + current->n_contours + + n_contours; + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 4 ); + + if ( new_max > FT_OUTLINE_CONTOURS_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) ) + goto Exit; + + adjust = 1; + loader->max_contours = new_max; + } + + if ( adjust ) + FT_GlyphLoader_Adjust_Points( loader ); + + Exit: + return error; + } + + + /* Ensure that we can add `n_subglyphs' to our glyph. this function */ + /* reallocates its subglyphs table if necessary. Note that it DOES */ + /* NOT change the number of subglyphs within the loader! */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader, + FT_UInt n_subs ) + { + FT_Memory memory = loader->memory; + FT_Error error = FT_Err_Ok; + FT_UInt new_max, old_max; + + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + new_max = base->num_subglyphs + current->num_subglyphs + n_subs; + old_max = loader->max_subglyphs; + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 2 ); + if ( FT_RENEW_ARRAY( base->subglyphs, old_max, new_max ) ) + goto Exit; + + loader->max_subglyphs = new_max; + + FT_GlyphLoader_Adjust_Subglyphs( loader ); + } + + Exit: + return error; + } + + + /* prepare loader for the addition of a new glyph on top of the base one */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Prepare( FT_GlyphLoader loader ) + { + FT_GlyphLoad current = &loader->current; + + + current->outline.n_points = 0; + current->outline.n_contours = 0; + current->num_subglyphs = 0; + + FT_GlyphLoader_Adjust_Points ( loader ); + FT_GlyphLoader_Adjust_Subglyphs( loader ); + } + + + /* add current glyph to the base image - and prepare for another */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Add( FT_GlyphLoader loader ) + { + FT_GlyphLoad base; + FT_GlyphLoad current; + + FT_UInt n_curr_contours; + FT_UInt n_base_points; + FT_UInt n; + + + if ( !loader ) + return; + + base = &loader->base; + current = &loader->current; + + n_curr_contours = current->outline.n_contours; + n_base_points = base->outline.n_points; + + base->outline.n_points = + (short)( base->outline.n_points + current->outline.n_points ); + base->outline.n_contours = + (short)( base->outline.n_contours + current->outline.n_contours ); + + base->num_subglyphs += current->num_subglyphs; + + /* adjust contours count in newest outline */ + for ( n = 0; n < n_curr_contours; n++ ) + current->outline.contours[n] = + (short)( current->outline.contours[n] + n_base_points ); + + /* prepare for another new glyph image */ + FT_GlyphLoader_Prepare( loader ); + } + + + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CopyPoints( FT_GlyphLoader target, + FT_GlyphLoader source ) + { + FT_Error error; + FT_UInt num_points = source->base.outline.n_points; + FT_UInt num_contours = source->base.outline.n_contours; + + + error = FT_GlyphLoader_CheckPoints( target, num_points, num_contours ); + if ( !error ) + { + FT_Outline* out = &target->base.outline; + FT_Outline* in = &source->base.outline; + + + FT_ARRAY_COPY( out->points, in->points, + num_points ); + FT_ARRAY_COPY( out->tags, in->tags, + num_points ); + FT_ARRAY_COPY( out->contours, in->contours, + num_contours ); + + /* do we need to copy the extra points? */ + if ( target->use_extra && source->use_extra ) + { + FT_ARRAY_COPY( target->base.extra_points, source->base.extra_points, + num_points ); + FT_ARRAY_COPY( target->base.extra_points2, source->base.extra_points2, + num_points ); + } + + out->n_points = (short)num_points; + out->n_contours = (short)num_contours; + + FT_GlyphLoader_Adjust_Points( target ); + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftglyph.c b/uppsrc/plugin/FT_fontsys/src/base/ftglyph.c new file mode 100644 index 000000000..fc14c1bdf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftglyph.c @@ -0,0 +1,627 @@ +/***************************************************************************/ +/* */ +/* ftglyph.c */ +/* */ +/* FreeType convenience functions to handle glyphs (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the definition of several convenience functions */ + /* that can be used by client applications to easily retrieve glyph */ + /* bitmaps and outlines from a given face. */ + /* */ + /* These functions should be optional if you are writing a font server */ + /* or text layout engine on top of FreeType. However, they are pretty */ + /* handy for many other simple uses of the library. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_GLYPH_H +#include FT_OUTLINE_H +#include FT_BITMAP_H +#include FT_INTERNAL_OBJECTS_H + +#include "basepic.h" + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_glyph + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_BitmapGlyph support ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( FT_Error ) + ft_bitmap_glyph_init( FT_Glyph bitmap_glyph, + FT_GlyphSlot slot ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + FT_Error error = FT_Err_Ok; + FT_Library library = FT_GLYPH( glyph )->library; + + + if ( slot->format != FT_GLYPH_FORMAT_BITMAP ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + glyph->left = slot->bitmap_left; + glyph->top = slot->bitmap_top; + + /* do lazy copying whenever possible */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + glyph->bitmap = slot->bitmap; + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + else + { + FT_Bitmap_New( &glyph->bitmap ); + error = FT_Bitmap_Copy( library, &slot->bitmap, &glyph->bitmap ); + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_bitmap_glyph_copy( FT_Glyph bitmap_source, + FT_Glyph bitmap_target ) + { + FT_Library library = bitmap_source->library; + FT_BitmapGlyph source = (FT_BitmapGlyph)bitmap_source; + FT_BitmapGlyph target = (FT_BitmapGlyph)bitmap_target; + + + target->left = source->left; + target->top = source->top; + + return FT_Bitmap_Copy( library, &source->bitmap, &target->bitmap ); + } + + + FT_CALLBACK_DEF( void ) + ft_bitmap_glyph_done( FT_Glyph bitmap_glyph ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + FT_Library library = FT_GLYPH( glyph )->library; + + + FT_Bitmap_Done( library, &glyph->bitmap ); + } + + + FT_CALLBACK_DEF( void ) + ft_bitmap_glyph_bbox( FT_Glyph bitmap_glyph, + FT_BBox* cbox ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + + + cbox->xMin = glyph->left << 6; + cbox->xMax = cbox->xMin + ( glyph->bitmap.width << 6 ); + cbox->yMax = glyph->top << 6; + cbox->yMin = cbox->yMax - ( glyph->bitmap.rows << 6 ); + } + + + FT_DEFINE_GLYPH(ft_bitmap_glyph_class, + sizeof ( FT_BitmapGlyphRec ), + FT_GLYPH_FORMAT_BITMAP, + + ft_bitmap_glyph_init, + ft_bitmap_glyph_done, + ft_bitmap_glyph_copy, + 0, /* FT_Glyph_TransformFunc */ + ft_bitmap_glyph_bbox, + 0 /* FT_Glyph_PrepareFunc */ + ) + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_OutlineGlyph support ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_init( FT_Glyph outline_glyph, + FT_GlyphSlot slot ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + FT_Error error = FT_Err_Ok; + FT_Library library = FT_GLYPH( glyph )->library; + FT_Outline* source = &slot->outline; + FT_Outline* target = &glyph->outline; + + + /* check format in glyph slot */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* allocate new outline */ + error = FT_Outline_New( library, source->n_points, source->n_contours, + &glyph->outline ); + if ( error ) + goto Exit; + + FT_Outline_Copy( source, target ); + + Exit: + return error; + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_done( FT_Glyph outline_glyph ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + FT_Outline_Done( FT_GLYPH( glyph )->library, &glyph->outline ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_copy( FT_Glyph outline_source, + FT_Glyph outline_target ) + { + FT_OutlineGlyph source = (FT_OutlineGlyph)outline_source; + FT_OutlineGlyph target = (FT_OutlineGlyph)outline_target; + FT_Error error; + FT_Library library = FT_GLYPH( source )->library; + + + error = FT_Outline_New( library, source->outline.n_points, + source->outline.n_contours, &target->outline ); + if ( !error ) + FT_Outline_Copy( &source->outline, &target->outline ); + + return error; + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_transform( FT_Glyph outline_glyph, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + if ( matrix ) + FT_Outline_Transform( &glyph->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &glyph->outline, delta->x, delta->y ); + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_bbox( FT_Glyph outline_glyph, + FT_BBox* bbox ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + FT_Outline_Get_CBox( &glyph->outline, bbox ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_prepare( FT_Glyph outline_glyph, + FT_GlyphSlot slot ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + slot->format = FT_GLYPH_FORMAT_OUTLINE; + slot->outline = glyph->outline; + slot->outline.flags &= ~FT_OUTLINE_OWNER; + + return FT_Err_Ok; + } + + + FT_DEFINE_GLYPH( ft_outline_glyph_class, + sizeof ( FT_OutlineGlyphRec ), + FT_GLYPH_FORMAT_OUTLINE, + + ft_outline_glyph_init, + ft_outline_glyph_done, + ft_outline_glyph_copy, + ft_outline_glyph_transform, + ft_outline_glyph_bbox, + ft_outline_glyph_prepare + ) + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_Glyph class and API ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + ft_new_glyph( FT_Library library, + const FT_Glyph_Class* clazz, + FT_Glyph* aglyph ) + { + FT_Memory memory = library->memory; + FT_Error error; + FT_Glyph glyph = NULL; + + + *aglyph = 0; + + if ( !FT_ALLOC( glyph, clazz->glyph_size ) ) + { + glyph->library = library; + glyph->clazz = clazz; + glyph->format = clazz->glyph_format; + + *aglyph = glyph; + } + + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Copy( FT_Glyph source, + FT_Glyph *target ) + { + FT_Glyph copy; + FT_Error error; + const FT_Glyph_Class* clazz; + + + /* check arguments */ + if ( !target ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + *target = 0; + + if ( !source || !source->clazz ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + clazz = source->clazz; + error = ft_new_glyph( source->library, clazz, © ); + if ( error ) + goto Exit; + + copy->advance = source->advance; + copy->format = source->format; + + if ( clazz->glyph_copy ) + error = clazz->glyph_copy( source, copy ); + + if ( error ) + FT_Done_Glyph( copy ); + else + *target = copy; + + Exit: + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Glyph( FT_GlyphSlot slot, + FT_Glyph *aglyph ) + { + FT_Library library; + FT_Error error; + FT_Glyph glyph; + + const FT_Glyph_Class* clazz = 0; + + + if ( !slot ) + return FT_Err_Invalid_Slot_Handle; + + library = slot->library; + + if ( !aglyph ) + return FT_Err_Invalid_Argument; + + /* if it is a bitmap, that's easy :-) */ + if ( slot->format == FT_GLYPH_FORMAT_BITMAP ) + clazz = FT_BITMAP_GLYPH_CLASS_GET; + + /* if it is an outline */ + else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + clazz = FT_OUTLINE_GLYPH_CLASS_GET; + + else + { + /* try to find a renderer that supports the glyph image format */ + FT_Renderer render = FT_Lookup_Renderer( library, slot->format, 0 ); + + + if ( render ) + clazz = &render->glyph_class; + } + + if ( !clazz ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* create FT_Glyph object */ + error = ft_new_glyph( library, clazz, &glyph ); + if ( error ) + goto Exit; + + /* copy advance while converting it to 16.16 format */ + glyph->advance.x = slot->advance.x << 10; + glyph->advance.y = slot->advance.y << 10; + + /* now import the image from the glyph slot */ + error = clazz->glyph_init( glyph, slot ); + + /* if an error occurred, destroy the glyph */ + if ( error ) + FT_Done_Glyph( glyph ); + else + *aglyph = glyph; + + Exit: + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Transform( FT_Glyph glyph, + FT_Matrix* matrix, + FT_Vector* delta ) + { + const FT_Glyph_Class* clazz; + FT_Error error = FT_Err_Ok; + + + if ( !glyph || !glyph->clazz ) + error = FT_Err_Invalid_Argument; + else + { + clazz = glyph->clazz; + if ( clazz->glyph_transform ) + { + /* transform glyph image */ + clazz->glyph_transform( glyph, matrix, delta ); + + /* transform advance vector */ + if ( matrix ) + FT_Vector_Transform( &glyph->advance, matrix ); + } + else + error = FT_Err_Invalid_Glyph_Format; + } + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Glyph_Get_CBox( FT_Glyph glyph, + FT_UInt bbox_mode, + FT_BBox *acbox ) + { + const FT_Glyph_Class* clazz; + + + if ( !acbox ) + return; + + acbox->xMin = acbox->yMin = acbox->xMax = acbox->yMax = 0; + + if ( !glyph || !glyph->clazz ) + return; + else + { + clazz = glyph->clazz; + if ( !clazz->glyph_bbox ) + return; + else + { + /* retrieve bbox in 26.6 coordinates */ + clazz->glyph_bbox( glyph, acbox ); + + /* perform grid fitting if needed */ + if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT || + bbox_mode == FT_GLYPH_BBOX_PIXELS ) + { + acbox->xMin = FT_PIX_FLOOR( acbox->xMin ); + acbox->yMin = FT_PIX_FLOOR( acbox->yMin ); + acbox->xMax = FT_PIX_CEIL( acbox->xMax ); + acbox->yMax = FT_PIX_CEIL( acbox->yMax ); + } + + /* convert to integer pixels if needed */ + if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE || + bbox_mode == FT_GLYPH_BBOX_PIXELS ) + { + acbox->xMin >>= 6; + acbox->yMin >>= 6; + acbox->xMax >>= 6; + acbox->yMax >>= 6; + } + } + } + return; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + FT_Vector* origin, + FT_Bool destroy ) + { + FT_GlyphSlotRec dummy; + FT_GlyphSlot_InternalRec dummy_internal; + FT_Error error = FT_Err_Ok; + FT_Glyph glyph; + FT_BitmapGlyph bitmap = NULL; + + const FT_Glyph_Class* clazz; + +#ifdef FT_CONFIG_OPTION_PIC + FT_Library library = FT_GLYPH( glyph )->library; +#endif + + + /* check argument */ + if ( !the_glyph ) + goto Bad; + + /* we render the glyph into a glyph bitmap using a `dummy' glyph slot */ + /* then calling FT_Render_Glyph_Internal() */ + + glyph = *the_glyph; + if ( !glyph ) + goto Bad; + + clazz = glyph->clazz; + + /* when called with a bitmap glyph, do nothing and return successfully */ + if ( clazz == FT_BITMAP_GLYPH_CLASS_GET ) + goto Exit; + + if ( !clazz || !clazz->glyph_prepare ) + goto Bad; + + FT_MEM_ZERO( &dummy, sizeof ( dummy ) ); + FT_MEM_ZERO( &dummy_internal, sizeof ( dummy_internal ) ); + dummy.internal = &dummy_internal; + dummy.library = glyph->library; + dummy.format = clazz->glyph_format; + + /* create result bitmap glyph */ + error = ft_new_glyph( glyph->library, FT_BITMAP_GLYPH_CLASS_GET, + (FT_Glyph*)(void*)&bitmap ); + if ( error ) + goto Exit; + +#if 1 + /* if `origin' is set, translate the glyph image */ + if ( origin ) + FT_Glyph_Transform( glyph, 0, origin ); +#else + FT_UNUSED( origin ); +#endif + + /* prepare dummy slot for rendering */ + error = clazz->glyph_prepare( glyph, &dummy ); + if ( !error ) + error = FT_Render_Glyph_Internal( glyph->library, &dummy, render_mode ); + +#if 1 + if ( !destroy && origin ) + { + FT_Vector v; + + + v.x = -origin->x; + v.y = -origin->y; + FT_Glyph_Transform( glyph, 0, &v ); + } +#endif + + if ( error ) + goto Exit; + + /* in case of success, copy the bitmap to the glyph bitmap */ + error = ft_bitmap_glyph_init( (FT_Glyph)bitmap, &dummy ); + if ( error ) + goto Exit; + + /* copy advance */ + bitmap->root.advance = glyph->advance; + + if ( destroy ) + FT_Done_Glyph( glyph ); + + *the_glyph = FT_GLYPH( bitmap ); + + Exit: + if ( error && bitmap ) + FT_Done_Glyph( FT_GLYPH( bitmap ) ); + + return error; + + Bad: + error = FT_Err_Invalid_Argument; + goto Exit; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Done_Glyph( FT_Glyph glyph ) + { + if ( glyph ) + { + FT_Memory memory = glyph->library->memory; + const FT_Glyph_Class* clazz = glyph->clazz; + + + if ( clazz->glyph_done ) + clazz->glyph_done( glyph ); + + FT_FREE( glyph ); + } + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftgxval.c b/uppsrc/plugin/FT_fontsys/src/base/ftgxval.c new file mode 100644 index 000000000..d62516137 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftgxval.c @@ -0,0 +1,140 @@ +/***************************************************************************/ +/* */ +/* ftgxval.c */ +/* */ +/* FreeType API for validating TrueTyepGX/AAT tables (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2010 by */ +/* Masatake YAMATO, Redhat K.K, */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_GX_VALIDATE_H + + + /* documentation is in ftgxval.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_TrueTypeGX_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_length ) + { + FT_Service_GXvalidate service; + FT_Error error; + + + if ( !face ) + { + error = FT_Err_Invalid_Face_Handle; + goto Exit; + } + + if ( tables == NULL ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, service, GX_VALIDATE ); + + if ( service ) + error = service->validate( face, + validation_flags, + tables, + table_length ); + else + error = FT_Err_Unimplemented_Feature; + + Exit: + return error; + } + + + FT_EXPORT_DEF( void ) + FT_TrueTypeGX_Free( FT_Face face, + FT_Bytes table ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + FT_FREE( table ); + } + + + FT_EXPORT_DEF( FT_Error ) + FT_ClassicKern_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *ckern_table ) + { + FT_Service_CKERNvalidate service; + FT_Error error; + + + if ( !face ) + { + error = FT_Err_Invalid_Face_Handle; + goto Exit; + } + + if ( ckern_table == NULL ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, service, CLASSICKERN_VALIDATE ); + + if ( service ) + error = service->validate( face, + validation_flags, + ckern_table ); + else + error = FT_Err_Unimplemented_Feature; + + Exit: + return error; + } + + + FT_EXPORT_DEF( void ) + FT_ClassicKern_Free( FT_Face face, + FT_Bytes table ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + + FT_FREE( table ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftinit.c b/uppsrc/plugin/FT_fontsys/src/base/ftinit.c new file mode 100644 index 000000000..e8738c584 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftinit.c @@ -0,0 +1,253 @@ +/***************************************************************************/ +/* */ +/* ftinit.c */ +/* */ +/* FreeType initialization layer (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* The purpose of this file is to implement the following two */ + /* functions: */ + /* */ + /* FT_Add_Default_Modules(): */ + /* This function is used to add the set of default modules to a */ + /* fresh new library object. The set is taken from the header file */ + /* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */ + /* Build System' for more information. */ + /* */ + /* FT_Init_FreeType(): */ + /* This function creates a system object for the current platform, */ + /* builds a library out of it, then calls FT_Default_Drivers(). */ + /* */ + /* Note that even if FT_Init_FreeType() uses the implementation of the */ + /* system object defined at build time, client applications are still */ + /* able to provide their own `ftsystem.c'. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_MODULE_H +#include "basepic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_init + +#ifndef FT_CONFIG_OPTION_PIC + +#undef FT_USE_MODULE +#ifdef __cplusplus +#define FT_USE_MODULE( type, x ) extern "C" const type x; +#else +#define FT_USE_MODULE( type, x ) extern const type x; +#endif + + +#include FT_CONFIG_MODULES_H + + +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) (const FT_Module_Class*)&(x), + + static + const FT_Module_Class* const ft_default_modules[] = + { +#include FT_CONFIG_MODULES_H + 0 + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#ifdef __cplusplus +#define FT_EXTERNC extern "C" +#else +#define FT_EXTERNC extern +#endif + + /* declare the module's class creation/destruction functions */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) \ + FT_EXTERNC FT_Error FT_Create_Class_##x( FT_Library library, FT_Module_Class** output_class ); \ + FT_EXTERNC void FT_Destroy_Class_##x( FT_Library library, FT_Module_Class* clazz ); + +#include FT_CONFIG_MODULES_H + + + /* count all module classes */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) MODULE_CLASS_##x, + + enum + { +#include FT_CONFIG_MODULES_H + FT_NUM_MODULE_CLASSES + }; + + /* destroy all module classes */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) \ + if ( classes[i] ) { FT_Destroy_Class_##x(library, classes[i]); } \ + i++; \ + + FT_BASE_DEF( void ) + ft_destroy_default_module_classes( FT_Library library ) + { + FT_Module_Class** classes; + FT_Memory memory; + FT_UInt i; + BasePIC* pic_container = (BasePIC*)library->pic_container.base; + + if ( !pic_container->default_module_classes ) + return; + + memory = library->memory; + classes = pic_container->default_module_classes; + i = 0; + +#include FT_CONFIG_MODULES_H + + FT_FREE( classes ); + pic_container->default_module_classes = 0; + } + + /* initialize all module classes and the pointer table */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) \ + error = FT_Create_Class_##x(library, &clazz); \ + if (error) goto Exit; \ + classes[i++] = clazz; + + FT_BASE_DEF( FT_Error ) + ft_create_default_module_classes( FT_Library library ) + { + FT_Error error; + FT_Memory memory; + FT_Module_Class** classes; + FT_Module_Class* clazz; + FT_UInt i; + BasePIC* pic_container = (BasePIC*)library->pic_container.base; + + memory = library->memory; + pic_container->default_module_classes = 0; + + if ( FT_ALLOC(classes, sizeof(FT_Module_Class*) * (FT_NUM_MODULE_CLASSES + 1) ) ) + return error; + /* initialize all pointers to 0, especially the last one */ + for (i = 0; i < FT_NUM_MODULE_CLASSES; i++) + classes[i] = 0; + classes[FT_NUM_MODULE_CLASSES] = 0; + + i = 0; + +#include FT_CONFIG_MODULES_H + +Exit: + if (error) ft_destroy_default_module_classes( library ); + else pic_container->default_module_classes = classes; + + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( void ) + FT_Add_Default_Modules( FT_Library library ) + { + FT_Error error; + const FT_Module_Class* const* cur; + + + /* test for valid `library' delayed to FT_Add_Module() */ + + cur = FT_DEFAULT_MODULES_GET; + while ( *cur ) + { + error = FT_Add_Module( library, *cur ); + /* notify errors, but don't stop */ + if ( error ) + FT_TRACE0(( "FT_Add_Default_Module:" + " Cannot install `%s', error = 0x%x\n", + (*cur)->module_name, error )); + cur++; + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Init_FreeType( FT_Library *alibrary ) + { + FT_Error error; + FT_Memory memory; + + + /* First of all, allocate a new system object -- this function is part */ + /* of the system-specific component, i.e. `ftsystem.c'. */ + + memory = FT_New_Memory(); + if ( !memory ) + { + FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" )); + return FT_Err_Unimplemented_Feature; + } + + /* build a library out of it, then fill it with the set of */ + /* default drivers. */ + + error = FT_New_Library( memory, alibrary ); + if ( error ) + FT_Done_Memory( memory ); + else + FT_Add_Default_Modules( *alibrary ); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_FreeType( FT_Library library ) + { + if ( library ) + { + FT_Memory memory = library->memory; + + + /* Discard the library object */ + FT_Done_Library( library ); + + /* discard memory manager */ + FT_Done_Memory( memory ); + } + + return FT_Err_Ok; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftlcdfil.c b/uppsrc/plugin/FT_fontsys/src/base/ftlcdfil.c new file mode 100644 index 000000000..1d550b1b0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftlcdfil.c @@ -0,0 +1,376 @@ +/***************************************************************************/ +/* */ +/* ftlcdfil.c */ +/* */ +/* FreeType API for color filtering of subpixel bitmap glyphs (body). */ +/* */ +/* Copyright 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_LCD_FILTER_H +#include FT_IMAGE_H +#include FT_INTERNAL_OBJECTS_H + + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + +/* define USE_LEGACY to implement the legacy filter */ +#define USE_LEGACY + + /* FIR filter used by the default and light filters */ + static void + _ft_lcd_filter_fir( FT_Bitmap* bitmap, + FT_Render_Mode mode, + FT_Library library ) + { + FT_Byte* weights = library->lcd_weights; + FT_UInt width = (FT_UInt)bitmap->width; + FT_UInt height = (FT_UInt)bitmap->rows; + + + /* horizontal in-place FIR filter */ + if ( mode == FT_RENDER_MODE_LCD && width >= 4 ) + { + FT_Byte* line = bitmap->buffer; + + + for ( ; height > 0; height--, line += bitmap->pitch ) + { + FT_UInt fir[5]; + FT_UInt val1, xx; + + + val1 = line[0]; + fir[0] = weights[2] * val1; + fir[1] = weights[3] * val1; + fir[2] = weights[4] * val1; + fir[3] = 0; + fir[4] = 0; + + val1 = line[1]; + fir[0] += weights[1] * val1; + fir[1] += weights[2] * val1; + fir[2] += weights[3] * val1; + fir[3] += weights[4] * val1; + + for ( xx = 2; xx < width; xx++ ) + { + FT_UInt val, pix; + + + val = line[xx]; + pix = fir[0] + weights[0] * val; + fir[0] = fir[1] + weights[1] * val; + fir[1] = fir[2] + weights[2] * val; + fir[2] = fir[3] + weights[3] * val; + fir[3] = weights[4] * val; + + pix >>= 8; + pix |= -( pix >> 8 ); + line[xx - 2] = (FT_Byte)pix; + } + + { + FT_UInt pix; + + + pix = fir[0] >> 8; + pix |= -( pix >> 8 ); + line[xx - 2] = (FT_Byte)pix; + + pix = fir[1] >> 8; + pix |= -( pix >> 8 ); + line[xx - 1] = (FT_Byte)pix; + } + } + } + + /* vertical in-place FIR filter */ + else if ( mode == FT_RENDER_MODE_LCD_V && height >= 4 ) + { + FT_Byte* column = bitmap->buffer; + FT_Int pitch = bitmap->pitch; + + + for ( ; width > 0; width--, column++ ) + { + FT_Byte* col = column; + FT_UInt fir[5]; + FT_UInt val1, yy; + + + val1 = col[0]; + fir[0] = weights[2] * val1; + fir[1] = weights[3] * val1; + fir[2] = weights[4] * val1; + fir[3] = 0; + fir[4] = 0; + col += pitch; + + val1 = col[0]; + fir[0] += weights[1] * val1; + fir[1] += weights[2] * val1; + fir[2] += weights[3] * val1; + fir[3] += weights[4] * val1; + col += pitch; + + for ( yy = 2; yy < height; yy++ ) + { + FT_UInt val, pix; + + + val = col[0]; + pix = fir[0] + weights[0] * val; + fir[0] = fir[1] + weights[1] * val; + fir[1] = fir[2] + weights[2] * val; + fir[2] = fir[3] + weights[3] * val; + fir[3] = weights[4] * val; + + pix >>= 8; + pix |= -( pix >> 8 ); + col[-2 * pitch] = (FT_Byte)pix; + col += pitch; + } + + { + FT_UInt pix; + + + pix = fir[0] >> 8; + pix |= -( pix >> 8 ); + col[-2 * pitch] = (FT_Byte)pix; + + pix = fir[1] >> 8; + pix |= -( pix >> 8 ); + col[-pitch] = (FT_Byte)pix; + } + } + } + } + + +#ifdef USE_LEGACY + + /* intra-pixel filter used by the legacy filter */ + static void + _ft_lcd_filter_legacy( FT_Bitmap* bitmap, + FT_Render_Mode mode, + FT_Library library ) + { + FT_UInt width = (FT_UInt)bitmap->width; + FT_UInt height = (FT_UInt)bitmap->rows; + FT_Int pitch = bitmap->pitch; + + static const int filters[3][3] = + { + { 65538 * 9/13, 65538 * 1/6, 65538 * 1/13 }, + { 65538 * 3/13, 65538 * 4/6, 65538 * 3/13 }, + { 65538 * 1/13, 65538 * 1/6, 65538 * 9/13 } + }; + + FT_UNUSED( library ); + + + /* horizontal in-place intra-pixel filter */ + if ( mode == FT_RENDER_MODE_LCD && width >= 3 ) + { + FT_Byte* line = bitmap->buffer; + + + for ( ; height > 0; height--, line += pitch ) + { + FT_UInt xx; + + + for ( xx = 0; xx < width; xx += 3 ) + { + FT_UInt r = 0; + FT_UInt g = 0; + FT_UInt b = 0; + FT_UInt p; + + + p = line[xx]; + r += filters[0][0] * p; + g += filters[0][1] * p; + b += filters[0][2] * p; + + p = line[xx + 1]; + r += filters[1][0] * p; + g += filters[1][1] * p; + b += filters[1][2] * p; + + p = line[xx + 2]; + r += filters[2][0] * p; + g += filters[2][1] * p; + b += filters[2][2] * p; + + line[xx] = (FT_Byte)( r / 65536 ); + line[xx + 1] = (FT_Byte)( g / 65536 ); + line[xx + 2] = (FT_Byte)( b / 65536 ); + } + } + } + else if ( mode == FT_RENDER_MODE_LCD_V && height >= 3 ) + { + FT_Byte* column = bitmap->buffer; + + + for ( ; width > 0; width--, column++ ) + { + FT_Byte* col = column; + FT_Byte* col_end = col + height * pitch; + + + for ( ; col < col_end; col += 3 * pitch ) + { + FT_UInt r = 0; + FT_UInt g = 0; + FT_UInt b = 0; + FT_UInt p; + + + p = col[0]; + r += filters[0][0] * p; + g += filters[0][1] * p; + b += filters[0][2] * p; + + p = col[pitch]; + r += filters[1][0] * p; + g += filters[1][1] * p; + b += filters[1][2] * p; + + p = col[pitch * 2]; + r += filters[2][0] * p; + g += filters[2][1] * p; + b += filters[2][2] * p; + + col[0] = (FT_Byte)( r / 65536 ); + col[pitch] = (FT_Byte)( g / 65536 ); + col[2 * pitch] = (FT_Byte)( b / 65536 ); + } + } + } + } + +#endif /* USE_LEGACY */ + + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilterWeights( FT_Library library, + unsigned char *weights ) + { + if ( !library || !weights ) + return FT_Err_Invalid_Argument; + + ft_memcpy( library->lcd_weights, weights, 5 ); + + return FT_Err_Ok; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilter( FT_Library library, + FT_LcdFilter filter ) + { + static const FT_Byte light_filter[5] = + { 0x00, 0x55, 0x56, 0x55, 0x00 }; + /* the values here sum up to a value larger than 256, */ + /* providing a cheap gamma correction */ + static const FT_Byte default_filter[5] = + { 0x10, 0x40, 0x70, 0x40, 0x10 }; + + + if ( !library ) + return FT_Err_Invalid_Argument; + + switch ( filter ) + { + case FT_LCD_FILTER_NONE: + library->lcd_filter_func = NULL; + library->lcd_extra = 0; + break; + + case FT_LCD_FILTER_DEFAULT: +#if defined( FT_FORCE_LEGACY_LCD_FILTER ) + + library->lcd_filter_func = _ft_lcd_filter_legacy; + library->lcd_extra = 0; + +#elif defined( FT_FORCE_LIGHT_LCD_FILTER ) + + ft_memcpy( library->lcd_weights, light_filter, 5 ); + library->lcd_filter_func = _ft_lcd_filter_fir; + library->lcd_extra = 2; + +#else + + ft_memcpy( library->lcd_weights, default_filter, 5 ); + library->lcd_filter_func = _ft_lcd_filter_fir; + library->lcd_extra = 2; + +#endif + + break; + + case FT_LCD_FILTER_LIGHT: + ft_memcpy( library->lcd_weights, light_filter, 5 ); + library->lcd_filter_func = _ft_lcd_filter_fir; + library->lcd_extra = 2; + break; + +#ifdef USE_LEGACY + + case FT_LCD_FILTER_LEGACY: + library->lcd_filter_func = _ft_lcd_filter_legacy; + library->lcd_extra = 0; + break; + +#endif + + default: + return FT_Err_Invalid_Argument; + } + + library->lcd_filter = filter; + + return FT_Err_Ok; + } + +#else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilterWeights( FT_Library library, + unsigned char *weights ) + { + FT_UNUSED( library ); + FT_UNUSED( weights ); + + return FT_Err_Unimplemented_Feature; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilter( FT_Library library, + FT_LcdFilter filter ) + { + FT_UNUSED( library ); + FT_UNUSED( filter ); + + return FT_Err_Unimplemented_Feature; + } + +#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftmac.c b/uppsrc/plugin/FT_fontsys/src/base/ftmac.c new file mode 100644 index 000000000..856c67410 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftmac.c @@ -0,0 +1,1057 @@ +/***************************************************************************/ +/* */ +/* ftmac.c */ +/* */ +/* Mac FOND support. Written by just@letterror.com. */ +/* Heavily modified by mpsuzuki, George Williams, and Sean McBride. */ +/* */ +/* This file is for Mac OS X only; see builds/mac/ftoldmac.c for */ +/* classic platforms built by MPW. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, */ +/* 2009 by */ +/* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + Notes + + Mac suitcase files can (and often do!) contain multiple fonts. To + support this I use the face_index argument of FT_(Open|New)_Face() + functions, and pretend the suitcase file is a collection. + + Warning: fbit and NFNT bitmap resources are not supported yet. In old + sfnt fonts, bitmap glyph data for each size is stored in each `NFNT' + resources instead of the `bdat' table in the sfnt resource. Therefore, + face->num_fixed_sizes is set to 0, because bitmap data in `NFNT' + resource is unavailable at present. + + The Mac FOND support works roughly like this: + + - Check whether the offered stream points to a Mac suitcase file. This + is done by checking the file type: it has to be 'FFIL' or 'tfil'. The + stream that gets passed to our init_face() routine is a stdio stream, + which isn't usable for us, since the FOND resources live in the + resource fork. So we just grab the stream->pathname field. + + - Read the FOND resource into memory, then check whether there is a + TrueType font and/or(!) a Type 1 font available. + + - If there is a Type 1 font available (as a separate `LWFN' file), read + its data into memory, massage it slightly so it becomes PFB data, wrap + it into a memory stream, load the Type 1 driver and delegate the rest + of the work to it by calling FT_Open_Face(). (XXX TODO: after this + has been done, the kerning data from the FOND resource should be + appended to the face: On the Mac there are usually no AFM files + available. However, this is tricky since we need to map Mac char + codes to ps glyph names to glyph ID's...) + + - If there is a TrueType font (an `sfnt' resource), read it into memory, + wrap it into a memory stream, load the TrueType driver and delegate + the rest of the work to it, by calling FT_Open_Face(). + + - Some suitcase fonts (notably Onyx) might point the `LWFN' file to + itself, even though it doesn't contains `POST' resources. To handle + this special case without opening the file an extra time, we just + ignore errors from the `LWFN' and fallback to the `sfnt' if both are + available. + */ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_STREAM_H +#include "ftbase.h" + + /* This is for Mac OS X. Without redefinition, OS_INLINE */ + /* expands to `static inline' which doesn't survive the */ + /* -ansi compilation flag of GCC. */ +#if !HAVE_ANSI_OS_INLINE +#undef OS_INLINE +#define OS_INLINE static __inline__ +#endif + + /* `configure' checks the availability of `ResourceIndex' strictly */ + /* and sets HAVE_TYPE_RESOURCE_INDEX 1 or 0 always. If it is */ + /* not set (e.g., a build without `configure'), the availability */ + /* is guessed from the SDK version. */ +#ifndef HAVE_TYPE_RESOURCE_INDEX +#if !defined( MAC_OS_X_VERSION_10_5 ) || \ + ( MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5 ) +#define HAVE_TYPE_RESOURCE_INDEX 0 +#else +#define HAVE_TYPE_RESOURCE_INDEX 1 +#endif +#endif /* !HAVE_TYPE_RESOURCE_INDEX */ + +#if ( HAVE_TYPE_RESOURCE_INDEX == 0 ) + typedef short ResourceIndex; +#endif + +#include <CoreServices/CoreServices.h> +#include <ApplicationServices/ApplicationServices.h> +#include <sys/syslimits.h> /* PATH_MAX */ + + /* Don't want warnings about our own use of deprecated functions. */ +#define FT_DEPRECATED_ATTRIBUTE + +#include FT_MAC_H + +#ifndef kATSOptionFlagsUnRestrictedScope /* since Mac OS X 10.1 */ +#define kATSOptionFlagsUnRestrictedScope kATSOptionFlagsDefault +#endif + + + /* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over + TrueType in case *both* are available (this is not common, + but it *is* possible). */ +#ifndef PREFER_LWFN +#define PREFER_LWFN 1 +#endif + + + /* This function is deprecated because FSSpec is deprecated in Mac OS X */ + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + FT_UNUSED( fontName ); + FT_UNUSED( pathSpec ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; + } + + + /* Private function. */ + /* The FSSpec type has been discouraged for a long time, */ + /* unfortunately an FSRef replacement API for */ + /* ATSFontGetFileSpecification() is only available in */ + /* Mac OS X 10.5 and later. */ + static OSStatus + FT_ATSFontGetFileReference( ATSFontRef ats_font_id, + FSRef* ats_font_ref ) + { +#if defined( MAC_OS_X_VERSION_10_5 ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) + + OSStatus err; + + err = ATSFontGetFileReference( ats_font_id, ats_font_ref ); + + return err; +#elif __LP64__ /* No 64bit Carbon API on legacy platforms */ + FT_UNUSED( ats_font_id ); + FT_UNUSED( ats_font_ref ); + + + return fnfErr; +#else /* 32bit Carbon API on legacy platforms */ + OSStatus err; + FSSpec spec; + + + err = ATSFontGetFileSpecification( ats_font_id, &spec ); + if ( noErr == err ) + err = FSpMakeFSRef( &spec, ats_font_ref ); + + return err; +#endif + } + + + static FT_Error + FT_GetFileRef_From_Mac_ATS_Name( const char* fontName, + FSRef* ats_font_ref, + FT_Long* face_index ) + { + CFStringRef cf_fontName; + ATSFontRef ats_font_id; + + + *face_index = 0; + + cf_fontName = CFStringCreateWithCString( NULL, fontName, + kCFStringEncodingMacRoman ); + ats_font_id = ATSFontFindFromName( cf_fontName, + kATSOptionFlagsUnRestrictedScope ); + CFRelease( cf_fontName ); + + if ( ats_font_id == 0 || ats_font_id == 0xFFFFFFFFUL ) + return FT_Err_Unknown_File_Format; + + if ( noErr != FT_ATSFontGetFileReference( ats_font_id, ats_font_ref ) ) + return FT_Err_Unknown_File_Format; + + /* face_index calculation by searching preceding fontIDs */ + /* with same FSRef */ + { + ATSFontRef id2 = ats_font_id - 1; + FSRef ref2; + + + while ( id2 > 0 ) + { + if ( noErr != FT_ATSFontGetFileReference( id2, &ref2 ) ) + break; + if ( noErr != FSCompareFSRefs( ats_font_ref, &ref2 ) ) + break; + + id2 --; + } + *face_index = ats_font_id - ( id2 + 1 ); + } + + return FT_Err_Ok; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, + UInt8* path, + UInt32 maxPathSize, + FT_Long* face_index ) + { + FSRef ref; + FT_Error err; + + + err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); + if ( FT_Err_Ok != err ) + return err; + + if ( noErr != FSRefMakePath( &ref, path, maxPathSize ) ) + return FT_Err_Unknown_File_Format; + + return FT_Err_Ok; + } + + + /* This function is deprecated because FSSpec is deprecated in Mac OS X */ + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_ATS_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { +#if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) ) + FT_UNUSED( fontName ); + FT_UNUSED( pathSpec ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; +#else + FSRef ref; + FT_Error err; + + + err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); + if ( FT_Err_Ok != err ) + return err; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, NULL, NULL, + pathSpec, NULL ) ) + return FT_Err_Unknown_File_Format; + + return FT_Err_Ok; +#endif + } + + + static OSErr + FT_FSPathMakeRes( const UInt8* pathname, + ResFileRefNum* res ) + { + OSErr err; + FSRef ref; + + + if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + /* at present, no support for dfont format */ + err = FSOpenResourceFile( &ref, 0, NULL, fsRdPerm, res ); + if ( noErr == err ) + return err; + + /* fallback to original resource-fork font */ + *res = FSOpenResFile( &ref, fsRdPerm ); + err = ResError(); + + return err; + } + + + /* Return the file type for given pathname */ + static OSType + get_file_type_from_path( const UInt8* pathname ) + { + FSRef ref; + FSCatalogInfo info; + + + if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) + return ( OSType ) 0; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoFinderInfo, &info, + NULL, NULL, NULL ) ) + return ( OSType ) 0; + + return ((FInfo *)(info.finderInfo))->fdType; + } + + + /* Given a PostScript font name, create the Macintosh LWFN file name. */ + static void + create_lwfn_name( char* ps_name, + Str255 lwfn_file_name ) + { + int max = 5, count = 0; + FT_Byte* p = lwfn_file_name; + FT_Byte* q = (FT_Byte*)ps_name; + + + lwfn_file_name[0] = 0; + + while ( *q ) + { + if ( ft_isupper( *q ) ) + { + if ( count ) + max = 3; + count = 0; + } + if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) ) + { + *++p = *q; + lwfn_file_name[0]++; + count++; + } + q++; + } + } + + + static short + count_faces_sfnt( char* fond_data ) + { + /* The count is 1 greater than the value in the FOND. */ + /* Isn't that cute? :-) */ + + return EndianS16_BtoN( *( (short*)( fond_data + + sizeof ( FamRec ) ) ) ) + 1; + } + + + static short + count_faces_scalable( char* fond_data ) + { + AsscEntry* assoc; + FamRec* fond; + short i, face, face_all; + + + fond = (FamRec*)fond_data; + face_all = EndianS16_BtoN( *( (short *)( fond_data + + sizeof ( FamRec ) ) ) ) + 1; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + face = 0; + + for ( i = 0; i < face_all; i++ ) + { + if ( 0 == EndianS16_BtoN( assoc[i].fontSize ) ) + face++; + } + return face; + } + + + /* Look inside the FOND data, answer whether there should be an SFNT + resource, and answer the name of a possible LWFN Type 1 file. + + Thanks to Paul Miller (paulm@profoundeffects.com) for the fix + to load a face OTHER than the first one in the FOND! + */ + + + static void + parse_fond( char* fond_data, + short* have_sfnt, + ResID* sfnt_id, + Str255 lwfn_file_name, + short face_index ) + { + AsscEntry* assoc; + AsscEntry* base_assoc; + FamRec* fond; + + + *sfnt_id = 0; + *have_sfnt = 0; + lwfn_file_name[0] = 0; + + fond = (FamRec*)fond_data; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + base_assoc = assoc; + + /* the maximum faces in a FOND is 48, size of StyleTable.indexes[] */ + if ( 47 < face_index ) + return; + + /* Let's do a little range checking before we get too excited here */ + if ( face_index < count_faces_sfnt( fond_data ) ) + { + assoc += face_index; /* add on the face_index! */ + + /* if the face at this index is not scalable, + fall back to the first one (old behavior) */ + if ( EndianS16_BtoN( assoc->fontSize ) == 0 ) + { + *have_sfnt = 1; + *sfnt_id = EndianS16_BtoN( assoc->fontID ); + } + else if ( base_assoc->fontSize == 0 ) + { + *have_sfnt = 1; + *sfnt_id = EndianS16_BtoN( base_assoc->fontID ); + } + } + + if ( EndianS32_BtoN( fond->ffStylOff ) ) + { + unsigned char* p = (unsigned char*)fond_data; + StyleTable* style; + unsigned short string_count; + char ps_name[256]; + unsigned char* names[64]; + int i; + + + p += EndianS32_BtoN( fond->ffStylOff ); + style = (StyleTable*)p; + p += sizeof ( StyleTable ); + string_count = EndianS16_BtoN( *(short*)(p) ); + p += sizeof ( short ); + + for ( i = 0; i < string_count && i < 64; i++ ) + { + names[i] = p; + p += names[i][0]; + p++; + } + + { + size_t ps_name_len = (size_t)names[0][0]; + + + if ( ps_name_len != 0 ) + { + ft_memcpy(ps_name, names[0] + 1, ps_name_len); + ps_name[ps_name_len] = 0; + } + if ( style->indexes[face_index] > 1 && + style->indexes[face_index] <= FT_MIN( string_count, 64 ) ) + { + unsigned char* suffixes = names[style->indexes[face_index] - 1]; + + + for ( i = 1; i <= suffixes[0]; i++ ) + { + unsigned char* s; + size_t j = suffixes[i] - 1; + + + if ( j < string_count && ( s = names[j] ) != NULL ) + { + size_t s_len = (size_t)s[0]; + + + if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) ) + { + ft_memcpy( ps_name + ps_name_len, s + 1, s_len ); + ps_name_len += s_len; + ps_name[ps_name_len] = 0; + } + } + } + } + } + + create_lwfn_name( ps_name, lwfn_file_name ); + } + } + + + static FT_Error + lookup_lwfn_by_fond( const UInt8* path_fond, + ConstStr255Param base_lwfn, + UInt8* path_lwfn, + size_t path_size ) + { + FSRef ref, par_ref; + size_t dirname_len; + + + /* Pathname for FSRef can be in various formats: HFS, HFS+, and POSIX. */ + /* We should not extract parent directory by string manipulation. */ + + if ( noErr != FSPathMakeRef( path_fond, &ref, FALSE ) ) + return FT_Err_Invalid_Argument; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, + NULL, NULL, NULL, &par_ref ) ) + return FT_Err_Invalid_Argument; + + if ( noErr != FSRefMakePath( &par_ref, path_lwfn, path_size ) ) + return FT_Err_Invalid_Argument; + + if ( ft_strlen( (char *)path_lwfn ) + 1 + base_lwfn[0] > path_size ) + return FT_Err_Invalid_Argument; + + /* now we have absolute dirname in path_lwfn */ + ft_strcat( (char *)path_lwfn, "/" ); + dirname_len = ft_strlen( (char *)path_lwfn ); + ft_strcat( (char *)path_lwfn, (char *)base_lwfn + 1 ); + path_lwfn[dirname_len + base_lwfn[0]] = '\0'; + + if ( noErr != FSPathMakeRef( path_lwfn, &ref, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, + NULL, NULL, NULL, NULL ) ) + return FT_Err_Cannot_Open_Resource; + + return FT_Err_Ok; + } + + + static short + count_faces( Handle fond, + const UInt8* pathname ) + { + ResID sfnt_id; + short have_sfnt, have_lwfn; + Str255 lwfn_file_name; + UInt8 buff[PATH_MAX]; + FT_Error err; + short num_faces; + + + have_sfnt = have_lwfn = 0; + + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 ); + + if ( lwfn_file_name[0] ) + { + err = lookup_lwfn_by_fond( pathname, lwfn_file_name, + buff, sizeof ( buff ) ); + if ( FT_Err_Ok == err ) + have_lwfn = 1; + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + num_faces = 1; + else + num_faces = count_faces_scalable( *fond ); + + return num_faces; + } + + + /* Read Type 1 data from the POST resources inside the LWFN file, + return a PFB buffer. This is somewhat convoluted because the FT2 + PFB parser wants the ASCII header as one chunk, and the LWFN + chunks are often not organized that way, so we glue chunks + of the same type together. */ + static FT_Error + read_lwfn( FT_Memory memory, + ResFileRefNum res, + FT_Byte** pfb_data, + FT_ULong* size ) + { + FT_Error error = FT_Err_Ok; + ResID res_id; + unsigned char *buffer, *p, *size_p = NULL; + FT_ULong total_size = 0; + FT_ULong old_total_size = 0; + FT_ULong post_size, pfb_chunk_size; + Handle post_data; + char code, last_code; + + + UseResFile( res ); + + /* First pass: load all POST resources, and determine the size of */ + /* the output buffer. */ + res_id = 501; + last_code = -1; + + for (;;) + { + post_data = Get1Resource( TTAG_POST, res_id++ ); + if ( post_data == NULL ) + break; /* we are done */ + + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( code == 5 ) + total_size += 2; /* just the end code */ + else + total_size += 6; /* code + 4 bytes chunk length */ + } + + total_size += GetHandleSize( post_data ) - 2; + last_code = code; + + /* detect integer overflows */ + if ( total_size < old_total_size ) + { + error = FT_Err_Array_Too_Large; + goto Error; + } + + old_total_size = total_size; + } + + if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) + goto Error; + + /* Second pass: append all POST data to the buffer, add PFB fields. */ + /* Glue all consecutive chunks of the same type together. */ + p = buffer; + res_id = 501; + last_code = -1; + pfb_chunk_size = 0; + + for (;;) + { + post_data = Get1Resource( TTAG_POST, res_id++ ); + if ( post_data == NULL ) + break; /* we are done */ + + post_size = (FT_ULong)GetHandleSize( post_data ) - 2; + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( last_code != -1 ) + { + /* we are done adding a chunk, fill in the size field */ + if ( size_p != NULL ) + { + *size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF ); + } + pfb_chunk_size = 0; + } + + *p++ = 0x80; + if ( code == 5 ) + *p++ = 0x03; /* the end */ + else if ( code == 2 ) + *p++ = 0x02; /* binary segment */ + else + *p++ = 0x01; /* ASCII segment */ + + if ( code != 5 ) + { + size_p = p; /* save for later */ + p += 4; /* make space for size field */ + } + } + + ft_memcpy( p, *post_data + 2, post_size ); + pfb_chunk_size += post_size; + p += post_size; + last_code = code; + } + + *pfb_data = buffer; + *size = total_size; + + Error: + CloseResFile( res ); + return error; + } + + + /* Create a new FT_Face from a file path to an LWFN file. */ + static FT_Error + FT_New_Face_From_LWFN( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Byte* pfb_data; + FT_ULong pfb_size; + FT_Error error; + ResFileRefNum res; + + + if ( noErr != FT_FSPathMakeRes( pathname, &res ) ) + return FT_Err_Cannot_Open_Resource; + + pfb_data = NULL; + pfb_size = 0; + error = read_lwfn( library->memory, res, &pfb_data, &pfb_size ); + CloseResFile( res ); /* PFB is already loaded, useless anymore */ + if ( error ) + return error; + + return open_face_from_buffer( library, + pfb_data, + pfb_size, + face_index, + "type1", + aface ); + } + + + /* Create a new FT_Face from an SFNT resource, specified by res ID. */ + static FT_Error + FT_New_Face_From_SFNT( FT_Library library, + ResID sfnt_id, + FT_Long face_index, + FT_Face* aface ) + { + Handle sfnt = NULL; + FT_Byte* sfnt_data; + size_t sfnt_size; + FT_Error error = FT_Err_Ok; + FT_Memory memory = library->memory; + int is_cff, is_sfnt_ps; + + + sfnt = GetResource( TTAG_sfnt, sfnt_id ); + if ( sfnt == NULL ) + return FT_Err_Invalid_Handle; + + sfnt_size = (FT_ULong)GetHandleSize( sfnt ); + if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) + { + ReleaseResource( sfnt ); + return error; + } + + ft_memcpy( sfnt_data, *sfnt, sfnt_size ); + ReleaseResource( sfnt ); + + is_cff = sfnt_size > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); + is_sfnt_ps = sfnt_size > 4 && !ft_memcmp( sfnt_data, "typ1", 4 ); + + if ( is_sfnt_ps ) + { + FT_Stream stream; + + + if ( FT_NEW( stream ) ) + goto Try_OpenType; + + FT_Stream_OpenMemory( stream, sfnt_data, sfnt_size ); + if ( !open_face_PS_from_sfnt_stream( library, + stream, + face_index, + 0, NULL, + aface ) ) + { + FT_Stream_Close( stream ); + FT_FREE( stream ); + FT_FREE( sfnt_data ); + goto Exit; + } + + FT_FREE( stream ); + } + Try_OpenType: + error = open_face_from_buffer( library, + sfnt_data, + sfnt_size, + face_index, + is_cff ? "cff" : "truetype", + aface ); + Exit: + return error; + } + + + /* Create a new FT_Face from a file path to a suitcase file. */ + static FT_Error + FT_New_Face_From_Suitcase( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Error error = FT_Err_Cannot_Open_Resource; + ResFileRefNum res_ref; + ResourceIndex res_index; + Handle fond; + short num_faces_in_res, num_faces_in_fond; + + + if ( noErr != FT_FSPathMakeRes( pathname, &res_ref ) ) + return FT_Err_Cannot_Open_Resource; + + UseResFile( res_ref ); + if ( ResError() ) + return FT_Err_Cannot_Open_Resource; + + num_faces_in_res = 0; + for ( res_index = 1; ; ++res_index ) + { + fond = Get1IndResource( TTAG_FOND, res_index ); + if ( ResError() ) + break; + + num_faces_in_fond = count_faces( fond, pathname ); + num_faces_in_res += num_faces_in_fond; + + if ( 0 <= face_index && face_index < num_faces_in_fond && error ) + error = FT_New_Face_From_FOND( library, fond, face_index, aface ); + + face_index -= num_faces_in_fond; + } + + CloseResFile( res_ref ); + if ( FT_Err_Ok == error && NULL != aface && NULL != *aface ) + (*aface)->num_faces = num_faces_in_res; + return error; + } + + + /* documentation is in ftmac.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FOND( FT_Library library, + Handle fond, + FT_Long face_index, + FT_Face* aface ) + { + short have_sfnt, have_lwfn = 0; + ResID sfnt_id, fond_id; + OSType fond_type; + Str255 fond_name; + Str255 lwfn_file_name; + UInt8 path_lwfn[PATH_MAX]; + OSErr err; + FT_Error error = FT_Err_Ok; + + + GetResInfo( fond, &fond_id, &fond_type, fond_name ); + if ( ResError() != noErr || fond_type != TTAG_FOND ) + return FT_Err_Invalid_File_Format; + + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index ); + + if ( lwfn_file_name[0] ) + { + ResFileRefNum res; + + + res = HomeResFile( fond ); + if ( noErr != ResError() ) + goto found_no_lwfn_file; + + { + UInt8 path_fond[PATH_MAX]; + FSRef ref; + + + err = FSGetForkCBInfo( res, kFSInvalidVolumeRefNum, + NULL, NULL, NULL, &ref, NULL ); + if ( noErr != err ) + goto found_no_lwfn_file; + + err = FSRefMakePath( &ref, path_fond, sizeof ( path_fond ) ); + if ( noErr != err ) + goto found_no_lwfn_file; + + error = lookup_lwfn_by_fond( path_fond, lwfn_file_name, + path_lwfn, sizeof ( path_lwfn ) ); + if ( FT_Err_Ok == error ) + have_lwfn = 1; + } + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + error = FT_New_Face_From_LWFN( library, + path_lwfn, + face_index, + aface ); + else + error = FT_Err_Unknown_File_Format; + + found_no_lwfn_file: + if ( have_sfnt && FT_Err_Ok != error ) + error = FT_New_Face_From_SFNT( library, + sfnt_id, + face_index, + aface ); + + return error; + } + + + /* Common function to load a new FT_Face from a resource file. */ + static FT_Error + FT_New_Face_From_Resource( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + OSType file_type; + FT_Error error; + + + /* LWFN is a (very) specific file format, check for it explicitly */ + file_type = get_file_type_from_path( pathname ); + if ( file_type == TTAG_LWFN ) + return FT_New_Face_From_LWFN( library, pathname, face_index, aface ); + + /* Otherwise the file type doesn't matter (there are more than */ + /* `FFIL' and `tfil'). Just try opening it as a font suitcase; */ + /* if it works, fine. */ + + error = FT_New_Face_From_Suitcase( library, pathname, face_index, aface ); + if ( error == 0 ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.); */ + /* we signal this by returning no error and no FT_Face */ + *aface = NULL; + return 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face */ + /* */ + /* <Description> */ + /* This is the Mac-specific implementation of FT_New_Face. In */ + /* addition to the standard FT_New_Face() functionality, it also */ + /* accepts pathnames to Mac suitcase files. For further */ + /* documentation see the original FT_New_Face() in freetype.h. */ + /* */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Open_Args args; + FT_Error error; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + error = FT_Err_Ok; + *aface = NULL; + + /* try resourcefork based font: LWFN, FFIL */ + error = FT_New_Face_From_Resource( library, (UInt8 *)pathname, + face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.) */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSRef */ + /* */ + /* <Description> */ + /* FT_New_Face_From_FSRef is identical to FT_New_Face except it */ + /* accepts an FSRef instead of a path. */ + /* */ + /* This function is deprecated because Carbon data types (FSRef) */ + /* are not cross-platform, and thus not suitable for the freetype API. */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSRef( FT_Library library, + const FSRef* ref, + FT_Long face_index, + FT_Face* aface ) + { + FT_Error error; + FT_Open_Args args; + OSErr err; + UInt8 pathname[PATH_MAX]; + + + if ( !ref ) + return FT_Err_Invalid_Argument; + + err = FSRefMakePath( ref, pathname, sizeof ( pathname ) ); + if ( err ) + error = FT_Err_Cannot_Open_Resource; + + error = FT_New_Face_From_Resource( library, pathname, face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* fallback to datafork font */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSSpec */ + /* */ + /* <Description> */ + /* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */ + /* accepts an FSSpec instead of a path. */ + /* */ + /* This function is deprecated because FSSpec is deprecated in Mac OS X */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSSpec( FT_Library library, + const FSSpec* spec, + FT_Long face_index, + FT_Face* aface ) + { +#if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) ) + FT_UNUSED( library ); + FT_UNUSED( spec ); + FT_UNUSED( face_index ); + FT_UNUSED( aface ); + + return FT_Err_Unimplemented_Feature; +#else + FSRef ref; + + + if ( !spec || FSpMakeFSRef( spec, &ref ) != noErr ) + return FT_Err_Invalid_Argument; + else + return FT_New_Face_From_FSRef( library, &ref, face_index, aface ); +#endif + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftmm.c b/uppsrc/plugin/FT_fontsys/src/base/ftmm.c new file mode 100644 index 000000000..cf19fa24a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftmm.c @@ -0,0 +1,202 @@ +/***************************************************************************/ +/* */ +/* ftmm.c */ +/* */ +/* Multiple Master font support (body). */ +/* */ +/* Copyright 1996-2001, 2003, 2004, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_mm + + + static FT_Error + ft_face_get_mm_service( FT_Face face, + FT_Service_MultiMasters *aservice ) + { + FT_Error error; + + + *aservice = NULL; + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + error = FT_Err_Invalid_Argument; + + if ( FT_HAS_MULTIPLE_MASTERS( face ) ) + { + FT_FACE_LOOKUP_SERVICE( face, + *aservice, + MULTI_MASTERS ); + + if ( *aservice ) + error = FT_Err_Ok; + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Multi_Master( FT_Face face, + FT_Multi_Master *amaster ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->get_mm ) + error = service->get_mm( face, amaster ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_MM_Var( FT_Face face, + FT_MM_Var* *amaster ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->get_mm_var ) + error = service->get_mm_var( face, amaster ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_MM_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_design ) + error = service->set_mm_design( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Var_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_var_design ) + error = service->set_var_design( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_MM_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_blend ) + error = service->set_mm_blend( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + /* This is exactly the same as the previous function. It exists for */ + /* orthogonality. */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Var_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_blend ) + error = service->set_mm_blend( face, num_coords, coords ); + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftobjs.c b/uppsrc/plugin/FT_fontsys/src/base/ftobjs.c new file mode 100644 index 000000000..66557937a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftobjs.c @@ -0,0 +1,4677 @@ +/***************************************************************************/ +/* */ +/* ftobjs.c */ +/* */ +/* The FreeType private base classes (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_LIST_H +#include FT_OUTLINE_H +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_RFORK_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H /* for SFNT_Load_Table_Func */ +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_TAGS_H +#include FT_TRUETYPE_IDS_H + +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_TT_CMAP_H +#include FT_SERVICE_KERNING_H +#include FT_SERVICE_TRUETYPE_ENGINE_H + +#ifdef FT_CONFIG_OPTION_MAC_FONTS +#include "ftbase.h" +#endif + +#define GRID_FIT_METRICS + + + FT_BASE_DEF( FT_Pointer ) + ft_service_list_lookup( FT_ServiceDesc service_descriptors, + const char* service_id ) + { + FT_Pointer result = NULL; + FT_ServiceDesc desc = service_descriptors; + + + if ( desc && service_id ) + { + for ( ; desc->serv_id != NULL; desc++ ) + { + if ( ft_strcmp( desc->serv_id, service_id ) == 0 ) + { + result = (FT_Pointer)desc->serv_data; + break; + } + } + } + + return result; + } + + + FT_BASE_DEF( void ) + ft_validator_init( FT_Validator valid, + const FT_Byte* base, + const FT_Byte* limit, + FT_ValidationLevel level ) + { + valid->base = base; + valid->limit = limit; + valid->level = level; + valid->error = FT_Err_Ok; + } + + + FT_BASE_DEF( FT_Int ) + ft_validator_run( FT_Validator valid ) + { + /* This function doesn't work! None should call it. */ + FT_UNUSED( valid ); + + return -1; + } + + + FT_BASE_DEF( void ) + ft_validator_error( FT_Validator valid, + FT_Error error ) + { + /* since the cast below also disables the compiler's */ + /* type check, we introduce a dummy variable, which */ + /* will be optimized away */ + volatile ft_jmp_buf* jump_buffer = &valid->jump_buffer; + + + valid->error = error; + + /* throw away volatileness; use `jump_buffer' or the */ + /* compiler may warn about an unused local variable */ + ft_longjmp( *(ft_jmp_buf*) jump_buffer, 1 ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** S T R E A M ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* create a new input stream from an FT_Open_Args structure */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_Stream_New( FT_Library library, + const FT_Open_Args* args, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream = NULL; + + + *astream = 0; + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !args ) + return FT_Err_Invalid_Argument; + + memory = library->memory; + + if ( FT_NEW( stream ) ) + goto Exit; + + stream->memory = memory; + + if ( args->flags & FT_OPEN_MEMORY ) + { + /* create a memory-based stream */ + FT_Stream_OpenMemory( stream, + (const FT_Byte*)args->memory_base, + args->memory_size ); + } + +#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT + + else if ( args->flags & FT_OPEN_PATHNAME ) + { + /* create a normal system stream */ + error = FT_Stream_Open( stream, args->pathname ); + stream->pathname.pointer = args->pathname; + } + else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream ) + { + /* use an existing, user-provided stream */ + + /* in this case, we do not need to allocate a new stream object */ + /* since the caller is responsible for closing it himself */ + FT_FREE( stream ); + stream = args->stream; + } + +#endif + + else + error = FT_Err_Invalid_Argument; + + if ( error ) + FT_FREE( stream ); + else + stream->memory = memory; /* just to be certain */ + + *astream = stream; + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_Free( FT_Stream stream, + FT_Int external ) + { + if ( stream ) + { + FT_Memory memory = stream->memory; + + + FT_Stream_Close( stream ); + + if ( !external ) + FT_FREE( stream ); + } + } + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + ft_glyphslot_init( FT_GlyphSlot slot ) + { + FT_Driver driver = slot->face->driver; + FT_Driver_Class clazz = driver->clazz; + FT_Memory memory = driver->root.memory; + FT_Error error = FT_Err_Ok; + FT_Slot_Internal internal = NULL; + + + slot->library = driver->root.library; + + if ( FT_NEW( internal ) ) + goto Exit; + + slot->internal = internal; + + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + error = FT_GlyphLoader_New( memory, &internal->loader ); + + if ( !error && clazz->init_slot ) + error = clazz->init_slot( slot ); + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + ft_glyphslot_free_bitmap( FT_GlyphSlot slot ) + { + if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) ) + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + + + FT_FREE( slot->bitmap.buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + else + { + /* assume that the bitmap buffer was stolen or not */ + /* allocated from the heap */ + slot->bitmap.buffer = NULL; + } + } + + + FT_BASE_DEF( void ) + ft_glyphslot_set_bitmap( FT_GlyphSlot slot, + FT_Byte* buffer ) + { + ft_glyphslot_free_bitmap( slot ); + + slot->bitmap.buffer = buffer; + + FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 ); + } + + + FT_BASE_DEF( FT_Error ) + ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, + FT_ULong size ) + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + FT_Error error; + + + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + FT_FREE( slot->bitmap.buffer ); + else + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + (void)FT_ALLOC( slot->bitmap.buffer, size ); + return error; + } + + + static void + ft_glyphslot_clear( FT_GlyphSlot slot ) + { + /* free bitmap if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* clear all public fields in the glyph slot */ + FT_ZERO( &slot->metrics ); + FT_ZERO( &slot->outline ); + + slot->bitmap.width = 0; + slot->bitmap.rows = 0; + slot->bitmap.pitch = 0; + slot->bitmap.pixel_mode = 0; + /* `slot->bitmap.buffer' has been handled by ft_glyphslot_free_bitmap */ + + slot->bitmap_left = 0; + slot->bitmap_top = 0; + slot->num_subglyphs = 0; + slot->subglyphs = 0; + slot->control_data = 0; + slot->control_len = 0; + slot->other = 0; + slot->format = FT_GLYPH_FORMAT_NONE; + + slot->linearHoriAdvance = 0; + slot->linearVertAdvance = 0; + slot->lsb_delta = 0; + slot->rsb_delta = 0; + } + + + static void + ft_glyphslot_done( FT_GlyphSlot slot ) + { + FT_Driver driver = slot->face->driver; + FT_Driver_Class clazz = driver->clazz; + FT_Memory memory = driver->root.memory; + + + if ( clazz->done_slot ) + clazz->done_slot( slot ); + + /* free bitmap buffer if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* slot->internal might be NULL in out-of-memory situations */ + if ( slot->internal ) + { + /* free glyph loader */ + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + { + FT_GlyphLoader_Done( slot->internal->loader ); + slot->internal->loader = 0; + } + + FT_FREE( slot->internal ); + } + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_New_GlyphSlot( FT_Face face, + FT_GlyphSlot *aslot ) + { + FT_Error error; + FT_Driver driver; + FT_Driver_Class clazz; + FT_Memory memory; + FT_GlyphSlot slot = NULL; + + + if ( !face || !face->driver ) + return FT_Err_Invalid_Argument; + + driver = face->driver; + clazz = driver->clazz; + memory = driver->root.memory; + + FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" )); + if ( !FT_ALLOC( slot, clazz->slot_object_size ) ) + { + slot->face = face; + + error = ft_glyphslot_init( slot ); + if ( error ) + { + ft_glyphslot_done( slot ); + FT_FREE( slot ); + goto Exit; + } + + slot->next = face->glyph; + face->glyph = slot; + + if ( aslot ) + *aslot = slot; + } + else if ( aslot ) + *aslot = 0; + + + Exit: + FT_TRACE4(( "FT_New_GlyphSlot: Return %d\n", error )); + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_GlyphSlot( FT_GlyphSlot slot ) + { + if ( slot ) + { + FT_Driver driver = slot->face->driver; + FT_Memory memory = driver->root.memory; + FT_GlyphSlot prev; + FT_GlyphSlot cur; + + + /* Remove slot from its parent face's list */ + prev = NULL; + cur = slot->face->glyph; + + while ( cur ) + { + if ( cur == slot ) + { + if ( !prev ) + slot->face->glyph = cur->next; + else + prev->next = cur->next; + + ft_glyphslot_done( slot ); + FT_FREE( slot ); + break; + } + prev = cur; + cur = cur->next; + } + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ) + { + FT_Face_Internal internal; + + + if ( !face ) + return; + + internal = face->internal; + + internal->transform_flags = 0; + + if ( !matrix ) + { + internal->transform_matrix.xx = 0x10000L; + internal->transform_matrix.xy = 0; + internal->transform_matrix.yx = 0; + internal->transform_matrix.yy = 0x10000L; + matrix = &internal->transform_matrix; + } + else + internal->transform_matrix = *matrix; + + /* set transform_flags bit flag 0 if `matrix' isn't the identity */ + if ( ( matrix->xy | matrix->yx ) || + matrix->xx != 0x10000L || + matrix->yy != 0x10000L ) + internal->transform_flags |= 1; + + if ( !delta ) + { + internal->transform_delta.x = 0; + internal->transform_delta.y = 0; + delta = &internal->transform_delta; + } + else + internal->transform_delta = *delta; + + /* set transform_flags bit flag 1 if `delta' isn't the null vector */ + if ( delta->x | delta->y ) + internal->transform_flags |= 2; + } + + + static FT_Renderer + ft_lookup_glyph_renderer( FT_GlyphSlot slot ); + + +#ifdef GRID_FIT_METRICS + static void + ft_glyphslot_grid_fit_metrics( FT_GlyphSlot slot, + FT_Bool vertical ) + { + FT_Glyph_Metrics* metrics = &slot->metrics; + FT_Pos right, bottom; + + + if ( vertical ) + { + metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX ); + metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY ); + + right = FT_PIX_CEIL( metrics->vertBearingX + metrics->width ); + bottom = FT_PIX_CEIL( metrics->vertBearingY + metrics->height ); + + metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX ); + metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY ); + + metrics->width = right - metrics->vertBearingX; + metrics->height = bottom - metrics->vertBearingY; + } + else + { + metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX ); + metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY ); + + right = FT_PIX_CEIL ( metrics->horiBearingX + metrics->width ); + bottom = FT_PIX_FLOOR( metrics->horiBearingY - metrics->height ); + + metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX ); + metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY ); + + metrics->width = right - metrics->horiBearingX; + metrics->height = metrics->horiBearingY - bottom; + } + + metrics->horiAdvance = FT_PIX_ROUND( metrics->horiAdvance ); + metrics->vertAdvance = FT_PIX_ROUND( metrics->vertAdvance ); + } +#endif /* GRID_FIT_METRICS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Glyph( FT_Face face, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + FT_Driver driver; + FT_GlyphSlot slot; + FT_Library library; + FT_Bool autohint = FALSE; + FT_Module hinter; + TT_Face ttface = (TT_Face)face; + + + if ( !face || !face->size || !face->glyph ) + return FT_Err_Invalid_Face_Handle; + + /* The validity test for `glyph_index' is performed by the */ + /* font drivers. */ + + slot = face->glyph; + ft_glyphslot_clear( slot ); + + driver = face->driver; + library = driver->root.library; + hinter = library->auto_hinter; + + /* resolve load flags dependencies */ + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | + FT_LOAD_IGNORE_TRANSFORM; + + if ( load_flags & FT_LOAD_NO_SCALE ) + { + load_flags |= FT_LOAD_NO_HINTING | + FT_LOAD_NO_BITMAP; + + load_flags &= ~FT_LOAD_RENDER; + } + + /* + * Determine whether we need to auto-hint or not. + * The general rules are: + * + * - Do only auto-hinting if we have a hinter module, a scalable font + * format dealing with outlines, and no transforms except simple + * slants and/or rotations by integer multiples of 90 degrees. + * + * - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't + * have a native font hinter. + * + * - Otherwise, auto-hint for LIGHT hinting mode or if there isn't + * any hinting bytecode in the TrueType/OpenType font. + * + * - Exception: The font is `tricky' and requires the native hinter to + * load properly. + */ + + if ( hinter && + !( load_flags & FT_LOAD_NO_HINTING ) && + !( load_flags & FT_LOAD_NO_AUTOHINT ) && + FT_DRIVER_IS_SCALABLE( driver ) && + FT_DRIVER_USES_OUTLINES( driver ) && + !FT_IS_TRICKY( face ) && + ( ( face->internal->transform_matrix.yx == 0 && + face->internal->transform_matrix.xx != 0 ) || + ( face->internal->transform_matrix.xx == 0 && + face->internal->transform_matrix.yx != 0 ) ) ) + { + if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT ) || + !FT_DRIVER_HAS_HINTER( driver ) ) + autohint = TRUE; + else + { + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags ); + + + /* the check for `num_locations' assures that we actually */ + /* test for instructions in a TTF and not in a CFF-based OTF */ + if ( mode == FT_RENDER_MODE_LIGHT || + face->internal->ignore_unpatented_hinter || + ( FT_IS_SFNT( face ) && + ttface->num_locations && + ttface->max_profile.maxSizeOfInstructions == 0 ) ) + autohint = TRUE; + } + } + + if ( autohint ) + { + FT_AutoHinter_Service hinting; + + + /* try to load embedded bitmaps first if available */ + /* */ + /* XXX: This is really a temporary hack that should disappear */ + /* promptly with FreeType 2.1! */ + /* */ + if ( FT_HAS_FIXED_SIZES( face ) && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + error = driver->clazz->load_glyph( slot, face->size, + glyph_index, + load_flags | FT_LOAD_SBITS_ONLY ); + + if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP ) + goto Load_Ok; + } + + { + FT_Face_Internal internal = face->internal; + FT_Int transform_flags = internal->transform_flags; + + + /* since the auto-hinter calls FT_Load_Glyph by itself, */ + /* make sure that glyphs aren't transformed */ + internal->transform_flags = 0; + + /* load auto-hinted outline */ + hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface; + + error = hinting->load_glyph( (FT_AutoHinter)hinter, + slot, face->size, + glyph_index, load_flags ); + + internal->transform_flags = transform_flags; + } + } + else + { + error = driver->clazz->load_glyph( slot, + face->size, + glyph_index, + load_flags ); + if ( error ) + goto Exit; + + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* check that the loaded outline is correct */ + error = FT_Outline_Check( &slot->outline ); + if ( error ) + goto Exit; + +#ifdef GRID_FIT_METRICS + if ( !( load_flags & FT_LOAD_NO_HINTING ) ) + ft_glyphslot_grid_fit_metrics( slot, + FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) ); +#endif + } + } + + Load_Ok: + /* compute the advance */ + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + slot->advance.x = 0; + slot->advance.y = slot->metrics.vertAdvance; + } + else + { + slot->advance.x = slot->metrics.horiAdvance; + slot->advance.y = 0; + } + + /* compute the linear advance in 16.16 pixels */ + if ( ( load_flags & FT_LOAD_LINEAR_DESIGN ) == 0 && + ( FT_IS_SCALABLE( face ) ) ) + { + FT_Size_Metrics* metrics = &face->size->metrics; + + + /* it's tricky! */ + slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance, + metrics->x_scale, 64 ); + + slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance, + metrics->y_scale, 64 ); + } + + if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) == 0 ) + { + FT_Face_Internal internal = face->internal; + + + /* now, transform the glyph image if needed */ + if ( internal->transform_flags ) + { + /* get renderer */ + FT_Renderer renderer = ft_lookup_glyph_renderer( slot ); + + + if ( renderer ) + error = renderer->clazz->transform_glyph( + renderer, slot, + &internal->transform_matrix, + &internal->transform_delta ); + else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* apply `standard' transformation if no renderer is available */ + if ( &internal->transform_matrix ) + FT_Outline_Transform( &slot->outline, + &internal->transform_matrix ); + + if ( &internal->transform_delta ) + FT_Outline_Translate( &slot->outline, + internal->transform_delta.x, + internal->transform_delta.y ); + } + + /* transform advance */ + FT_Vector_Transform( &slot->advance, &internal->transform_matrix ); + } + } + + FT_TRACE5(( " x advance: %d\n" , slot->advance.x )); + FT_TRACE5(( " y advance: %d\n" , slot->advance.y )); + + FT_TRACE5(( " linear x advance: %d\n" , slot->linearHoriAdvance )); + FT_TRACE5(( " linear y advance: %d\n" , slot->linearVertAdvance )); + + /* do we need to render the image now? */ + if ( !error && + slot->format != FT_GLYPH_FORMAT_BITMAP && + slot->format != FT_GLYPH_FORMAT_COMPOSITE && + load_flags & FT_LOAD_RENDER ) + { + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags ); + + + if ( mode == FT_RENDER_MODE_NORMAL && + (load_flags & FT_LOAD_MONOCHROME ) ) + mode = FT_RENDER_MODE_MONO; + + error = FT_Render_Glyph( slot, mode ); + } + + Exit: + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Char( FT_Face face, + FT_ULong char_code, + FT_Int32 load_flags ) + { + FT_UInt glyph_index; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + glyph_index = (FT_UInt)char_code; + if ( face->charmap ) + glyph_index = FT_Get_Char_Index( face, char_code ); + + return FT_Load_Glyph( face, glyph_index, load_flags ); + } + + + /* destructor for sizes list */ + static void + destroy_size( FT_Memory memory, + FT_Size size, + FT_Driver driver ) + { + /* finalize client-specific data */ + if ( size->generic.finalizer ) + size->generic.finalizer( size ); + + /* finalize format-specific stuff */ + if ( driver->clazz->done_size ) + driver->clazz->done_size( size ); + + FT_FREE( size->internal ); + FT_FREE( size ); + } + + + static void + ft_cmap_done_internal( FT_CMap cmap ); + + + static void + destroy_charmaps( FT_Face face, + FT_Memory memory ) + { + FT_Int n; + + + if ( !face ) + return; + + for ( n = 0; n < face->num_charmaps; n++ ) + { + FT_CMap cmap = FT_CMAP( face->charmaps[n] ); + + + ft_cmap_done_internal( cmap ); + + face->charmaps[n] = NULL; + } + + FT_FREE( face->charmaps ); + face->num_charmaps = 0; + } + + + /* destructor for faces list */ + static void + destroy_face( FT_Memory memory, + FT_Face face, + FT_Driver driver ) + { + FT_Driver_Class clazz = driver->clazz; + + + /* discard auto-hinting data */ + if ( face->autohint.finalizer ) + face->autohint.finalizer( face->autohint.data ); + + /* Discard glyph slots for this face. */ + /* Beware! FT_Done_GlyphSlot() changes the field `face->glyph' */ + while ( face->glyph ) + FT_Done_GlyphSlot( face->glyph ); + + /* discard all sizes for this face */ + FT_List_Finalize( &face->sizes_list, + (FT_List_Destructor)destroy_size, + memory, + driver ); + face->size = 0; + + /* now discard client data */ + if ( face->generic.finalizer ) + face->generic.finalizer( face ); + + /* discard charmaps */ + destroy_charmaps( face, memory ); + + /* finalize format-specific stuff */ + if ( clazz->done_face ) + clazz->done_face( face ); + + /* close the stream for this face if needed */ + FT_Stream_Free( + face->stream, + ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 ); + + face->stream = 0; + + /* get rid of it */ + if ( face->internal ) + { + FT_FREE( face->internal ); + } + FT_FREE( face ); + } + + + static void + Destroy_Driver( FT_Driver driver ) + { + FT_List_Finalize( &driver->faces_list, + (FT_List_Destructor)destroy_face, + driver->root.memory, + driver ); + + /* check whether we need to drop the driver's glyph loader */ + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + FT_GlyphLoader_Done( driver->glyph_loader ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_unicode_charmap */ + /* */ + /* <Description> */ + /* This function finds a Unicode charmap, if there is one. */ + /* And if there is more than one, it tries to favour the more */ + /* extensive one, i.e., one that supports UCS-4 against those which */ + /* are limited to the BMP (said UCS-2 encoding.) */ + /* */ + /* This function is called from open_face() (just below), and also */ + /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ). */ + /* */ + static FT_Error + find_unicode_charmap( FT_Face face ) + { + FT_CharMap* first; + FT_CharMap* cur; + + + /* caller should have already checked that `face' is valid */ + FT_ASSERT( face ); + + first = face->charmaps; + + if ( !first ) + return FT_Err_Invalid_CharMap_Handle; + + /* + * The original TrueType specification(s) only specified charmap + * formats that are capable of mapping 8 or 16 bit character codes to + * glyph indices. + * + * However, recent updates to the Apple and OpenType specifications + * introduced new formats that are capable of mapping 32-bit character + * codes as well. And these are already used on some fonts, mainly to + * map non-BMP Asian ideographs as defined in Unicode. + * + * For compatibility purposes, these fonts generally come with + * *several* Unicode charmaps: + * + * - One of them in the "old" 16-bit format, that cannot access + * all glyphs in the font. + * + * - Another one in the "new" 32-bit format, that can access all + * the glyphs. + * + * This function has been written to always favor a 32-bit charmap + * when found. Otherwise, a 16-bit one is returned when found. + */ + + /* Since the `interesting' table, with IDs (3,10), is normally the */ + /* last one, we loop backwards. This loses with type1 fonts with */ + /* non-BMP characters (<.0001%), this wins with .ttf with non-BMP */ + /* chars (.01% ?), and this is the same about 99.99% of the time! */ + + cur = first + face->num_charmaps; /* points after the last one */ + + for ( ; --cur >= first; ) + { + if ( cur[0]->encoding == FT_ENCODING_UNICODE ) + { + /* XXX If some new encodings to represent UCS-4 are added, */ + /* they should be added here. */ + if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT && + cur[0]->encoding_id == TT_MS_ID_UCS_4 ) || + ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && + cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "find_unicode_charmap: UCS-4 cmap is found " + "at too late position (%d)\n", cur - first )); + continue; + } +#endif + face->charmap = cur[0]; + return FT_Err_Ok; + } + } + } + + /* We do not have any UCS-4 charmap. */ + /* Do the loop again and search for UCS-2 charmaps. */ + cur = first + face->num_charmaps; + + for ( ; --cur >= first; ) + { + if ( cur[0]->encoding == FT_ENCODING_UNICODE ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "find_unicode_charmap: UCS-2 cmap is found " + "at too late position (%d)\n", cur - first )); + continue; + } +#endif + face->charmap = cur[0]; + return FT_Err_Ok; + } + } + + return FT_Err_Invalid_CharMap_Handle; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_variant_selector_charmap */ + /* */ + /* <Description> */ + /* This function finds the variant selector charmap, if there is one. */ + /* There can only be one (platform=0, specific=5, format=14). */ + /* */ + static FT_CharMap + find_variant_selector_charmap( FT_Face face ) + { + FT_CharMap* first; + FT_CharMap* end; + FT_CharMap* cur; + + + /* caller should have already checked that `face' is valid */ + FT_ASSERT( face ); + + first = face->charmaps; + + if ( !first ) + return NULL; + + end = first + face->num_charmaps; /* points after the last one */ + + for ( cur = first; cur < end; ++cur ) + { + if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && + cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR && + FT_Get_CMap_Format( cur[0] ) == 14 ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "find_unicode_charmap: UVS cmap is found " + "at too late position (%d)\n", cur - first )); + continue; + } +#endif + return cur[0]; + } + } + + return NULL; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* open_face */ + /* */ + /* <Description> */ + /* This function does some work for FT_Open_Face(). */ + /* */ + static FT_Error + open_face( FT_Driver driver, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter* params, + FT_Face *aface ) + { + FT_Memory memory; + FT_Driver_Class clazz; + FT_Face face = 0; + FT_Error error, error2; + FT_Face_Internal internal = NULL; + + + clazz = driver->clazz; + memory = driver->root.memory; + + /* allocate the face object and perform basic initialization */ + if ( FT_ALLOC( face, clazz->face_object_size ) ) + goto Fail; + + if ( FT_NEW( internal ) ) + goto Fail; + + face->internal = internal; + + face->driver = driver; + face->memory = memory; + face->stream = stream; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + { + int i; + + + face->internal->incremental_interface = 0; + for ( i = 0; i < num_params && !face->internal->incremental_interface; + i++ ) + if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL ) + face->internal->incremental_interface = + (FT_Incremental_Interface)params[i].data; + } +#endif + + if ( clazz->init_face ) + error = clazz->init_face( stream, + face, + (FT_Int)face_index, + num_params, + params ); + if ( error ) + goto Fail; + + /* select Unicode charmap by default */ + error2 = find_unicode_charmap( face ); + + /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */ + /* is returned. */ + + /* no error should happen, but we want to play safe */ + if ( error2 && error2 != FT_Err_Invalid_CharMap_Handle ) + { + error = error2; + goto Fail; + } + + *aface = face; + + Fail: + if ( error ) + { + destroy_charmaps( face, memory ); + if ( clazz->done_face ) + clazz->done_face( face ); + FT_FREE( internal ); + FT_FREE( face ); + *aface = 0; + } + + return error; + } + + + /* there's a Mac-specific extended implementation of FT_New_Face() */ + /* in src/base/ftmac.c */ + +#if !defined( FT_MACINTOSH ) || defined( DARWIN_NO_CARBON ) + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + args.stream = NULL; + + return FT_Open_Face( library, &args, face_index, aface ); + } + +#endif /* defined( FT_MACINTOSH ) && !defined( DARWIN_NO_CARBON ) */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Memory_Face( FT_Library library, + const FT_Byte* file_base, + FT_Long file_size, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + + + /* test for valid `library' and `face' delayed to FT_Open_Face() */ + if ( !file_base ) + return FT_Err_Invalid_Argument; + + args.flags = FT_OPEN_MEMORY; + args.memory_base = file_base; + args.memory_size = file_size; + args.stream = NULL; + + return FT_Open_Face( library, &args, face_index, aface ); + } + + +#ifdef FT_CONFIG_OPTION_MAC_FONTS + + /* The behavior here is very similar to that in base/ftmac.c, but it */ + /* is designed to work on non-mac systems, so no mac specific calls. */ + /* */ + /* We look at the file and determine if it is a mac dfont file or a mac */ + /* resource file, or a macbinary file containing a mac resource file. */ + /* */ + /* Unlike ftmac I'm not going to look at a `FOND'. I don't really see */ + /* the point, especially since there may be multiple `FOND' resources. */ + /* Instead I'll just look for `sfnt' and `POST' resources, ordered as */ + /* they occur in the file. */ + /* */ + /* Note that multiple `POST' resources do not mean multiple postscript */ + /* fonts; they all get jammed together to make what is essentially a */ + /* pfb file. */ + /* */ + /* We aren't interested in `NFNT' or `FONT' bitmap resources. */ + /* */ + /* As soon as we get an `sfnt' load it into memory and pass it off to */ + /* FT_Open_Face. */ + /* */ + /* If we have a (set of) `POST' resources, massage them into a (memory) */ + /* pfb file and pass that to FT_Open_Face. (As with ftmac.c I'm not */ + /* going to try to save the kerning info. After all that lives in the */ + /* `FOND' which isn't in the file containing the `POST' resources so */ + /* we don't really have access to it. */ + + + /* Finalizer for a memory stream; gets called by FT_Done_Face(). */ + /* It frees the memory it uses. */ + /* From ftmac.c. */ + static void + memory_stream_close( FT_Stream stream ) + { + FT_Memory memory = stream->memory; + + + FT_FREE( stream->base ); + + stream->size = 0; + stream->base = 0; + stream->close = 0; + } + + + /* Create a new memory stream from a buffer and a size. */ + /* From ftmac.c. */ + static FT_Error + new_memory_stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream_CloseFunc close, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream = NULL; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !base ) + return FT_Err_Invalid_Argument; + + *astream = 0; + memory = library->memory; + if ( FT_NEW( stream ) ) + goto Exit; + + FT_Stream_OpenMemory( stream, base, size ); + + stream->close = close; + + *astream = stream; + + Exit: + return error; + } + + + /* Create a new FT_Face given a buffer and a driver name. */ + /* from ftmac.c */ + FT_LOCAL_DEF( FT_Error ) + open_face_from_buffer( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Long face_index, + const char* driver_name, + FT_Face *aface ) + { + FT_Open_Args args; + FT_Error error; + FT_Stream stream = NULL; + FT_Memory memory = library->memory; + + + error = new_memory_stream( library, + base, + size, + memory_stream_close, + &stream ); + if ( error ) + { + FT_FREE( base ); + return error; + } + + args.flags = FT_OPEN_STREAM; + args.stream = stream; + if ( driver_name ) + { + args.flags = args.flags | FT_OPEN_DRIVER; + args.driver = FT_Get_Module( library, driver_name ); + } + +#ifdef FT_MACINTOSH + /* At this point, face_index has served its purpose; */ + /* whoever calls this function has already used it to */ + /* locate the correct font data. We should not propagate */ + /* this index to FT_Open_Face() (unless it is negative). */ + + if ( face_index > 0 ) + face_index = 0; +#endif + + error = FT_Open_Face( library, &args, face_index, aface ); + + if ( error == FT_Err_Ok ) + (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM; + else +#ifdef FT_MACINTOSH + FT_Stream_Free( stream, 0 ); +#else + { + FT_Stream_Close( stream ); + FT_FREE( stream ); + } +#endif + + return error; + } + + + /* Look up `TYP1' or `CID ' table from sfnt table directory. */ + /* `offset' and `length' must exclude the binary header in tables. */ + + /* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */ + /* format too. Here, since we can't expect that the TrueType font */ + /* driver is loaded unconditially, we must parse the font by */ + /* ourselves. We are only interested in the name of the table and */ + /* the offset. */ + + static FT_Error + ft_lookup_PS_in_sfnt_stream( FT_Stream stream, + FT_Long face_index, + FT_ULong* offset, + FT_ULong* length, + FT_Bool* is_sfnt_cid ) + { + FT_Error error; + FT_UShort numTables; + FT_Long pstable_index; + FT_ULong tag; + int i; + + + *offset = 0; + *length = 0; + *is_sfnt_cid = FALSE; + + /* TODO: support for sfnt-wrapped PS/CID in TTC format */ + + /* version check for 'typ1' (should be ignored?) */ + if ( FT_READ_ULONG( tag ) ) + return error; + if ( tag != TTAG_typ1 ) + return FT_Err_Unknown_File_Format; + + if ( FT_READ_USHORT( numTables ) ) + return error; + if ( FT_STREAM_SKIP( 2 * 3 ) ) /* skip binary search header */ + return error; + + pstable_index = -1; + *is_sfnt_cid = FALSE; + + for ( i = 0; i < numTables; i++ ) + { + if ( FT_READ_ULONG( tag ) || FT_STREAM_SKIP( 4 ) || + FT_READ_ULONG( *offset ) || FT_READ_ULONG( *length ) ) + return error; + + if ( tag == TTAG_CID ) + { + pstable_index++; + *offset += 22; + *length -= 22; + *is_sfnt_cid = TRUE; + if ( face_index < 0 ) + return FT_Err_Ok; + } + else if ( tag == TTAG_TYP1 ) + { + pstable_index++; + *offset += 24; + *length -= 24; + *is_sfnt_cid = FALSE; + if ( face_index < 0 ) + return FT_Err_Ok; + } + if ( face_index >= 0 && pstable_index == face_index ) + return FT_Err_Ok; + } + return FT_Err_Table_Missing; + } + + + FT_LOCAL_DEF( FT_Error ) + open_face_PS_from_sfnt_stream( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter *params, + FT_Face *aface ) + { + FT_Error error; + FT_Memory memory = library->memory; + FT_ULong offset, length; + FT_Long pos; + FT_Bool is_sfnt_cid; + FT_Byte* sfnt_ps = NULL; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + pos = FT_Stream_Pos( stream ); + + error = ft_lookup_PS_in_sfnt_stream( stream, + face_index, + &offset, + &length, + &is_sfnt_cid ); + if ( error ) + goto Exit; + + if ( FT_Stream_Seek( stream, pos + offset ) ) + goto Exit; + + if ( FT_ALLOC( sfnt_ps, (FT_Long)length ) ) + goto Exit; + + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length ); + if ( error ) + goto Exit; + + error = open_face_from_buffer( library, + sfnt_ps, + length, + face_index < 0 ? face_index : 0, + is_sfnt_cid ? "cid" : "type1", + aface ); + Exit: + { + FT_Error error1; + + + if ( error == FT_Err_Unknown_File_Format ) + { + error1 = FT_Stream_Seek( stream, pos ); + if ( error1 ) + return error1; + } + + return error; + } + } + + +#if !defined( FT_MACINTOSH ) || defined( DARWIN_NO_CARBON ) + + /* The resource header says we've got resource_cnt `POST' (type1) */ + /* resources in this file. They all need to be coalesced into */ + /* one lump which gets passed on to the type1 driver. */ + /* Here can be only one PostScript font in a file so face_index */ + /* must be 0 (or -1). */ + /* */ + static FT_Error + Mac_Read_POST_Resource( FT_Library library, + FT_Stream stream, + FT_Long *offsets, + FT_Long resource_cnt, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error = FT_Err_Cannot_Open_Resource; + FT_Memory memory = library->memory; + FT_Byte* pfb_data = NULL; + int i, type, flags; + FT_Long len; + FT_Long pfb_len, pfb_pos, pfb_lenpos; + FT_Long rlen, temp; + + + if ( face_index == -1 ) + face_index = 0; + if ( face_index != 0 ) + return error; + + /* Find the length of all the POST resources, concatenated. Assume */ + /* worst case (each resource in its own section). */ + pfb_len = 0; + for ( i = 0; i < resource_cnt; ++i ) + { + error = FT_Stream_Seek( stream, offsets[i] ); + if ( error ) + goto Exit; + if ( FT_READ_LONG( temp ) ) + goto Exit; + pfb_len += temp + 6; + } + + if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) ) + goto Exit; + + pfb_data[0] = 0x80; + pfb_data[1] = 1; /* Ascii section */ + pfb_data[2] = 0; /* 4-byte length, fill in later */ + pfb_data[3] = 0; + pfb_data[4] = 0; + pfb_data[5] = 0; + pfb_pos = 6; + pfb_lenpos = 2; + + len = 0; + type = 1; + for ( i = 0; i < resource_cnt; ++i ) + { + error = FT_Stream_Seek( stream, offsets[i] ); + if ( error ) + goto Exit2; + if ( FT_READ_LONG( rlen ) ) + goto Exit; + if ( FT_READ_USHORT( flags ) ) + goto Exit; + FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n", + i, offsets[i], rlen, flags )); + + /* postpone the check of rlen longer than buffer until FT_Stream_Read() */ + if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */ + continue; + + /* the flags are part of the resource, so rlen >= 2. */ + /* but some fonts declare rlen = 0 for empty fragment */ + if ( rlen > 2 ) + rlen -= 2; + else + rlen = 0; + + if ( ( flags >> 8 ) == type ) + len += rlen; + else + { + if ( pfb_lenpos + 3 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_lenpos ] = (FT_Byte)( len ); + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 ); + + if ( ( flags >> 8 ) == 5 ) /* End of font mark */ + break; + + if ( pfb_pos + 6 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_pos++] = 0x80; + + type = flags >> 8; + len = rlen; + + pfb_data[pfb_pos++] = (FT_Byte)type; + pfb_lenpos = pfb_pos; + pfb_data[pfb_pos++] = 0; /* 4-byte length, fill in later */ + pfb_data[pfb_pos++] = 0; + pfb_data[pfb_pos++] = 0; + pfb_data[pfb_pos++] = 0; + } + + error = FT_Err_Cannot_Open_Resource; + if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len ) + goto Exit2; + + error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen ); + if ( error ) + goto Exit2; + pfb_pos += rlen; + } + + if ( pfb_pos + 2 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_pos++] = 0x80; + pfb_data[pfb_pos++] = 3; + + if ( pfb_lenpos + 3 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_lenpos ] = (FT_Byte)( len ); + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 ); + + return open_face_from_buffer( library, + pfb_data, + pfb_pos, + face_index, + "type1", + aface ); + + Exit2: + FT_FREE( pfb_data ); + + Exit: + return error; + } + + + /* The resource header says we've got resource_cnt `sfnt' */ + /* (TrueType/OpenType) resources in this file. Look through */ + /* them for the one indicated by face_index, load it into mem, */ + /* pass it on the the truetype driver and return it. */ + /* */ + static FT_Error + Mac_Read_sfnt_Resource( FT_Library library, + FT_Stream stream, + FT_Long *offsets, + FT_Long resource_cnt, + FT_Long face_index, + FT_Face *aface ) + { + FT_Memory memory = library->memory; + FT_Byte* sfnt_data = NULL; + FT_Error error; + FT_Long flag_offset; + FT_Long rlen; + int is_cff; + FT_Long face_index_in_resource = 0; + + + if ( face_index == -1 ) + face_index = 0; + if ( face_index >= resource_cnt ) + return FT_Err_Cannot_Open_Resource; + + flag_offset = offsets[face_index]; + error = FT_Stream_Seek( stream, flag_offset ); + if ( error ) + goto Exit; + + if ( FT_READ_LONG( rlen ) ) + goto Exit; + if ( rlen == -1 ) + return FT_Err_Cannot_Open_Resource; + + error = open_face_PS_from_sfnt_stream( library, + stream, + face_index, + 0, NULL, + aface ); + if ( !error ) + goto Exit; + + /* rewind sfnt stream before open_face_PS_from_sfnt_stream() */ + if ( FT_Stream_Seek( stream, flag_offset + 4 ) ) + goto Exit; + + if ( FT_ALLOC( sfnt_data, (FT_Long)rlen ) ) + return error; + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, rlen ); + if ( error ) + goto Exit; + + is_cff = rlen > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); + error = open_face_from_buffer( library, + sfnt_data, + rlen, + face_index_in_resource, + is_cff ? "cff" : "truetype", + aface ); + + Exit: + return error; + } + + + /* Check for a valid resource fork header, or a valid dfont */ + /* header. In a resource fork the first 16 bytes are repeated */ + /* at the location specified by bytes 4-7. In a dfont bytes */ + /* 4-7 point to 16 bytes of zeroes instead. */ + /* */ + static FT_Error + IsMacResource( FT_Library library, + FT_Stream stream, + FT_Long resource_offset, + FT_Long face_index, + FT_Face *aface ) + { + FT_Memory memory = library->memory; + FT_Error error; + FT_Long map_offset, rdara_pos; + FT_Long *data_offsets; + FT_Long count; + + + error = FT_Raccess_Get_HeaderInfo( library, stream, resource_offset, + &map_offset, &rdara_pos ); + if ( error ) + return error; + + error = FT_Raccess_Get_DataOffsets( library, stream, + map_offset, rdara_pos, + TTAG_POST, + &data_offsets, &count ); + if ( !error ) + { + error = Mac_Read_POST_Resource( library, stream, data_offsets, count, + face_index, aface ); + FT_FREE( data_offsets ); + /* POST exists in an LWFN providing a single face */ + if ( !error ) + (*aface)->num_faces = 1; + return error; + } + + error = FT_Raccess_Get_DataOffsets( library, stream, + map_offset, rdara_pos, + TTAG_sfnt, + &data_offsets, &count ); + if ( !error ) + { + FT_Long face_index_internal = face_index % count; + + + error = Mac_Read_sfnt_Resource( library, stream, data_offsets, count, + face_index_internal, aface ); + FT_FREE( data_offsets ); + if ( !error ) + (*aface)->num_faces = count; + } + + return error; + } + + + /* Check for a valid macbinary header, and if we find one */ + /* check that the (flattened) resource fork in it is valid. */ + /* */ + static FT_Error + IsMacBinary( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface ) + { + unsigned char header[128]; + FT_Error error; + FT_Long dlen, offset; + + + if ( NULL == stream ) + return FT_Err_Invalid_Stream_Operation; + + error = FT_Stream_Seek( stream, 0 ); + if ( error ) + goto Exit; + + error = FT_Stream_Read( stream, (FT_Byte*)header, 128 ); + if ( error ) + goto Exit; + + if ( header[ 0] != 0 || + header[74] != 0 || + header[82] != 0 || + header[ 1] == 0 || + header[ 1] > 33 || + header[63] != 0 || + header[2 + header[1]] != 0 ) + return FT_Err_Unknown_File_Format; + + dlen = ( header[0x53] << 24 ) | + ( header[0x54] << 16 ) | + ( header[0x55] << 8 ) | + header[0x56]; +#if 0 + rlen = ( header[0x57] << 24 ) | + ( header[0x58] << 16 ) | + ( header[0x59] << 8 ) | + header[0x5a]; +#endif /* 0 */ + offset = 128 + ( ( dlen + 127 ) & ~127 ); + + return IsMacResource( library, stream, offset, face_index, aface ); + + Exit: + return error; + } + + + static FT_Error + load_face_in_embedded_rfork( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface, + const FT_Open_Args *args ) + { + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + FT_Memory memory = library->memory; + FT_Error error = FT_Err_Unknown_File_Format; + int i; + + char * file_names[FT_RACCESS_N_RULES]; + FT_Long offsets[FT_RACCESS_N_RULES]; + FT_Error errors[FT_RACCESS_N_RULES]; + FT_Bool is_darwin_vfs, vfs_rfork_has_no_font = FALSE; /* not tested */ + + FT_Open_Args args2; + FT_Stream stream2 = 0; + + + FT_Raccess_Guess( library, stream, + args->pathname, file_names, offsets, errors ); + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + is_darwin_vfs = raccess_rule_by_darwin_vfs( i ); + if ( is_darwin_vfs && vfs_rfork_has_no_font ) + { + FT_TRACE3(( "Skip rule %d: darwin vfs resource fork" + " is already checked and" + " no font is found\n", i )); + continue; + } + + if ( errors[i] ) + { + FT_TRACE3(( "Error[%d] has occurred in rule %d\n", errors[i], i )); + continue; + } + + args2.flags = FT_OPEN_PATHNAME; + args2.pathname = file_names[i] ? file_names[i] : args->pathname; + + FT_TRACE3(( "Try rule %d: %s (offset=%d) ...", + i, args2.pathname, offsets[i] )); + + error = FT_Stream_New( library, &args2, &stream2 ); + if ( is_darwin_vfs && error == FT_Err_Cannot_Open_Stream ) + vfs_rfork_has_no_font = TRUE; + + if ( error ) + { + FT_TRACE3(( "failed\n" )); + continue; + } + + error = IsMacResource( library, stream2, offsets[i], + face_index, aface ); + FT_Stream_Free( stream2, 0 ); + + FT_TRACE3(( "%s\n", error ? "failed": "successful" )); + + if ( !error ) + break; + else if ( is_darwin_vfs ) + vfs_rfork_has_no_font = TRUE; + } + + for (i = 0; i < FT_RACCESS_N_RULES; i++) + { + if ( file_names[i] ) + FT_FREE( file_names[i] ); + } + + /* Caller (load_mac_face) requires FT_Err_Unknown_File_Format. */ + if ( error ) + error = FT_Err_Unknown_File_Format; + + return error; + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + } + + + /* Check for some macintosh formats without Carbon framework. */ + /* Is this a macbinary file? If so look at the resource fork. */ + /* Is this a mac dfont file? */ + /* Is this an old style resource fork? (in data) */ + /* Else call load_face_in_embedded_rfork to try extra rules */ + /* (defined in `ftrfork.c'). */ + /* */ + static FT_Error + load_mac_face( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface, + const FT_Open_Args *args ) + { + FT_Error error; + FT_UNUSED( args ); + + + error = IsMacBinary( library, stream, face_index, aface ); + if ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format ) + { + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + FT_TRACE3(( "Try as dfont: %s ...", args->pathname )); + + error = IsMacResource( library, stream, 0, face_index, aface ); + + FT_TRACE3(( "%s\n", error ? "failed" : "successful" )); + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + } + + if ( ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format || + FT_ERROR_BASE( error ) == FT_Err_Invalid_Stream_Operation ) && + ( args->flags & FT_OPEN_PATHNAME ) ) + error = load_face_in_embedded_rfork( library, stream, + face_index, aface, args ); + return error; + } +#endif + +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Open_Face( FT_Library library, + const FT_Open_Args* args, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_Stream stream = NULL; + FT_Face face = NULL; + FT_ListNode node = NULL; + FT_Bool external_stream; + FT_Module* cur; + FT_Module* limit; + + + /* test for valid `library' delayed to */ + /* FT_Stream_New() */ + + if ( ( !aface && face_index >= 0 ) || !args ) + return FT_Err_Invalid_Argument; + + external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) && + args->stream ); + + /* create input stream */ + error = FT_Stream_New( library, args, &stream ); + if ( error ) + goto Fail3; + + memory = library->memory; + + /* If the font driver is specified in the `args' structure, use */ + /* it. Otherwise, we scan the list of registered drivers. */ + if ( ( args->flags & FT_OPEN_DRIVER ) && args->driver ) + { + driver = FT_DRIVER( args->driver ); + + /* not all modules are drivers, so check... */ + if ( FT_MODULE_IS_DRIVER( driver ) ) + { + FT_Int num_params = 0; + FT_Parameter* params = 0; + + + if ( args->flags & FT_OPEN_PARAMS ) + { + num_params = args->num_params; + params = args->params; + } + + error = open_face( driver, stream, face_index, + num_params, params, &face ); + if ( !error ) + goto Success; + } + else + error = FT_Err_Invalid_Handle; + + FT_Stream_Free( stream, external_stream ); + goto Fail; + } + else + { + /* check each font driver for an appropriate format */ + cur = library->modules; + limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + /* not all modules are font drivers, so check... */ + if ( FT_MODULE_IS_DRIVER( cur[0] ) ) + { + FT_Int num_params = 0; + FT_Parameter* params = 0; + + + driver = FT_DRIVER( cur[0] ); + + if ( args->flags & FT_OPEN_PARAMS ) + { + num_params = args->num_params; + params = args->params; + } + + error = open_face( driver, stream, face_index, + num_params, params, &face ); + if ( !error ) + goto Success; + +#ifdef FT_CONFIG_OPTION_MAC_FONTS + if ( ft_strcmp( cur[0]->clazz->module_name, "truetype" ) == 0 && + FT_ERROR_BASE( error ) == FT_Err_Table_Missing ) + { + /* TrueType but essential tables are missing */ + if ( FT_Stream_Seek( stream, 0 ) ) + break; + + error = open_face_PS_from_sfnt_stream( library, + stream, + face_index, + num_params, + params, + aface ); + if ( !error ) + { + FT_Stream_Free( stream, external_stream ); + return error; + } + } +#endif + + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format ) + goto Fail3; + } + } + + Fail3: + /* If we are on the mac, and we get an FT_Err_Invalid_Stream_Operation */ + /* it may be because we have an empty data fork, so we need to check */ + /* the resource fork. */ + if ( FT_ERROR_BASE( error ) != FT_Err_Cannot_Open_Stream && + FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format && + FT_ERROR_BASE( error ) != FT_Err_Invalid_Stream_Operation ) + goto Fail2; + +#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS ) + error = load_mac_face( library, stream, face_index, aface, args ); + if ( !error ) + { + /* We don't want to go to Success here. We've already done that. */ + /* On the other hand, if we succeeded we still need to close this */ + /* stream (we opened a different stream which extracted the */ + /* interesting information out of this stream here. That stream */ + /* will still be open and the face will point to it). */ + FT_Stream_Free( stream, external_stream ); + return error; + } + + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format ) + goto Fail2; +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */ + + /* no driver is able to handle this format */ + error = FT_Err_Unknown_File_Format; + + Fail2: + FT_Stream_Free( stream, external_stream ); + goto Fail; + } + + Success: + FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" )); + + /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */ + if ( external_stream ) + face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM; + + /* add the face object to its driver's list */ + if ( FT_NEW( node ) ) + goto Fail; + + node->data = face; + /* don't assume driver is the same as face->driver, so use */ + /* face->driver instead. */ + FT_List_Add( &face->driver->faces_list, node ); + + /* now allocate a glyph slot object for the face */ + FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" )); + + if ( face_index >= 0 ) + { + error = FT_New_GlyphSlot( face, NULL ); + if ( error ) + goto Fail; + + /* finally, allocate a size object for the face */ + { + FT_Size size; + + + FT_TRACE4(( "FT_Open_Face: Creating size object\n" )); + + error = FT_New_Size( face, &size ); + if ( error ) + goto Fail; + + face->size = size; + } + } + + /* some checks */ + + if ( FT_IS_SCALABLE( face ) ) + { + if ( face->height < 0 ) + face->height = (FT_Short)-face->height; + + if ( !FT_HAS_VERTICAL( face ) ) + face->max_advance_height = (FT_Short)face->height; + } + + if ( FT_HAS_FIXED_SIZES( face ) ) + { + FT_Int i; + + + for ( i = 0; i < face->num_fixed_sizes; i++ ) + { + FT_Bitmap_Size* bsize = face->available_sizes + i; + + + if ( bsize->height < 0 ) + bsize->height = (FT_Short)-bsize->height; + if ( bsize->x_ppem < 0 ) + bsize->x_ppem = (FT_Short)-bsize->x_ppem; + if ( bsize->y_ppem < 0 ) + bsize->y_ppem = -bsize->y_ppem; + } + } + + /* initialize internal face data */ + { + FT_Face_Internal internal = face->internal; + + + internal->transform_matrix.xx = 0x10000L; + internal->transform_matrix.xy = 0; + internal->transform_matrix.yx = 0; + internal->transform_matrix.yy = 0x10000L; + + internal->transform_delta.x = 0; + internal->transform_delta.y = 0; + + internal->refcount = 1; + } + + if ( aface ) + *aface = face; + else + FT_Done_Face( face ); + + goto Exit; + + Fail: + FT_Done_Face( face ); + + Exit: + FT_TRACE4(( "FT_Open_Face: Return %d\n", error )); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Attach_File( FT_Face face, + const char* filepathname ) + { + FT_Open_Args open; + + + /* test for valid `face' delayed to FT_Attach_Stream() */ + + if ( !filepathname ) + return FT_Err_Invalid_Argument; + + open.stream = NULL; + open.flags = FT_OPEN_PATHNAME; + open.pathname = (char*)filepathname; + + return FT_Attach_Stream( face, &open ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Attach_Stream( FT_Face face, + FT_Open_Args* parameters ) + { + FT_Stream stream; + FT_Error error; + FT_Driver driver; + + FT_Driver_Class clazz; + + + /* test for valid `parameters' delayed to FT_Stream_New() */ + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + if ( !driver ) + return FT_Err_Invalid_Driver_Handle; + + error = FT_Stream_New( driver->root.library, parameters, &stream ); + if ( error ) + goto Exit; + + /* we implement FT_Attach_Stream in each driver through the */ + /* `attach_file' interface */ + + error = FT_Err_Unimplemented_Feature; + clazz = driver->clazz; + if ( clazz->attach_file ) + error = clazz->attach_file( face, stream ); + + /* close the attached stream */ + FT_Stream_Free( stream, + (FT_Bool)( parameters->stream && + ( parameters->flags & FT_OPEN_STREAM ) ) ); + + Exit: + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Reference_Face( FT_Face face ) + { + face->internal->refcount++; + + return FT_Err_Ok; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Face( FT_Face face ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_ListNode node; + + + error = FT_Err_Invalid_Face_Handle; + if ( face && face->driver ) + { + face->internal->refcount--; + if ( face->internal->refcount > 0 ) + error = FT_Err_Ok; + else + { + driver = face->driver; + memory = driver->root.memory; + + /* find face in driver's list */ + node = FT_List_Find( &driver->faces_list, face ); + if ( node ) + { + /* remove face object from the driver's list */ + FT_List_Remove( &driver->faces_list, node ); + FT_FREE( node ); + + /* now destroy the object proper */ + destroy_face( memory, face, driver ); + error = FT_Err_Ok; + } + } + } + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Size( FT_Face face, + FT_Size *asize ) + { + FT_Error error; + FT_Memory memory; + FT_Driver driver; + FT_Driver_Class clazz; + + FT_Size size = 0; + FT_ListNode node = 0; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !asize ) + return FT_Err_Invalid_Size_Handle; + + if ( !face->driver ) + return FT_Err_Invalid_Driver_Handle; + + *asize = 0; + + driver = face->driver; + clazz = driver->clazz; + memory = face->memory; + + /* Allocate new size object and perform basic initialisation */ + if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) ) + goto Exit; + + size->face = face; + + /* for now, do not use any internal fields in size objects */ + size->internal = 0; + + if ( clazz->init_size ) + error = clazz->init_size( size ); + + /* in case of success, add to the face's list */ + if ( !error ) + { + *asize = size; + node->data = size; + FT_List_Add( &face->sizes_list, node ); + } + + Exit: + if ( error ) + { + FT_FREE( node ); + FT_FREE( size ); + } + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Size( FT_Size size ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_Face face; + FT_ListNode node; + + + if ( !size ) + return FT_Err_Invalid_Size_Handle; + + face = size->face; + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + if ( !driver ) + return FT_Err_Invalid_Driver_Handle; + + memory = driver->root.memory; + + error = FT_Err_Ok; + node = FT_List_Find( &face->sizes_list, size ); + if ( node ) + { + FT_List_Remove( &face->sizes_list, node ); + FT_FREE( node ); + + if ( face->size == size ) + { + face->size = 0; + if ( face->sizes_list.head ) + face->size = (FT_Size)(face->sizes_list.head->data); + } + + destroy_size( memory, size, driver ); + } + else + error = FT_Err_Invalid_Size_Handle; + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_Match_Size( FT_Face face, + FT_Size_Request req, + FT_Bool ignore_width, + FT_ULong* size_index ) + { + FT_Int i; + FT_Long w, h; + + + if ( !FT_HAS_FIXED_SIZES( face ) ) + return FT_Err_Invalid_Face_Handle; + + /* FT_Bitmap_Size doesn't provide enough info... */ + if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL ) + return FT_Err_Unimplemented_Feature; + + w = FT_REQUEST_WIDTH ( req ); + h = FT_REQUEST_HEIGHT( req ); + + if ( req->width && !req->height ) + h = w; + else if ( !req->width && req->height ) + w = h; + + w = FT_PIX_ROUND( w ); + h = FT_PIX_ROUND( h ); + + for ( i = 0; i < face->num_fixed_sizes; i++ ) + { + FT_Bitmap_Size* bsize = face->available_sizes + i; + + + if ( h != FT_PIX_ROUND( bsize->y_ppem ) ) + continue; + + if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width ) + { + if ( size_index ) + *size_index = (FT_ULong)i; + + return FT_Err_Ok; + } + } + + return FT_Err_Invalid_Pixel_Size; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics, + FT_Pos advance ) + { + FT_Pos height = metrics->height; + + + /* compensate for glyph with bbox above/below the baseline */ + if ( metrics->horiBearingY < 0 ) + { + if ( height < metrics->horiBearingY ) + height = metrics->horiBearingY; + } + else if ( metrics->horiBearingY > 0 ) + height -= metrics->horiBearingY; + + /* the factor 1.2 is a heuristical value */ + if ( !advance ) + advance = height * 12 / 10; + + metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2; + metrics->vertBearingY = ( advance - height ) / 2; + metrics->vertAdvance = advance; + } + + + static void + ft_recompute_scaled_metrics( FT_Face face, + FT_Size_Metrics* metrics ) + { + /* Compute root ascender, descender, test height, and max_advance */ + +#ifdef GRID_FIT_METRICS + metrics->ascender = FT_PIX_CEIL( FT_MulFix( face->ascender, + metrics->y_scale ) ); + + metrics->descender = FT_PIX_FLOOR( FT_MulFix( face->descender, + metrics->y_scale ) ); + + metrics->height = FT_PIX_ROUND( FT_MulFix( face->height, + metrics->y_scale ) ); + + metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width, + metrics->x_scale ) ); +#else /* !GRID_FIT_METRICS */ + metrics->ascender = FT_MulFix( face->ascender, + metrics->y_scale ); + + metrics->descender = FT_MulFix( face->descender, + metrics->y_scale ); + + metrics->height = FT_MulFix( face->height, + metrics->y_scale ); + + metrics->max_advance = FT_MulFix( face->max_advance_width, + metrics->x_scale ); +#endif /* !GRID_FIT_METRICS */ + } + + + FT_BASE_DEF( void ) + FT_Select_Metrics( FT_Face face, + FT_ULong strike_index ) + { + FT_Size_Metrics* metrics; + FT_Bitmap_Size* bsize; + + + metrics = &face->size->metrics; + bsize = face->available_sizes + strike_index; + + metrics->x_ppem = (FT_UShort)( ( bsize->x_ppem + 32 ) >> 6 ); + metrics->y_ppem = (FT_UShort)( ( bsize->y_ppem + 32 ) >> 6 ); + + if ( FT_IS_SCALABLE( face ) ) + { + metrics->x_scale = FT_DivFix( bsize->x_ppem, + face->units_per_EM ); + metrics->y_scale = FT_DivFix( bsize->y_ppem, + face->units_per_EM ); + + ft_recompute_scaled_metrics( face, metrics ); + } + else + { + metrics->x_scale = 1L << 16; + metrics->y_scale = 1L << 16; + metrics->ascender = bsize->y_ppem; + metrics->descender = 0; + metrics->height = bsize->height << 6; + metrics->max_advance = bsize->x_ppem; + } + } + + + FT_BASE_DEF( void ) + FT_Request_Metrics( FT_Face face, + FT_Size_Request req ) + { + FT_Size_Metrics* metrics; + + + metrics = &face->size->metrics; + + if ( FT_IS_SCALABLE( face ) ) + { + FT_Long w = 0, h = 0, scaled_w = 0, scaled_h = 0; + + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + w = h = face->units_per_EM; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + w = h = face->ascender - face->descender; + break; + + case FT_SIZE_REQUEST_TYPE_BBOX: + w = face->bbox.xMax - face->bbox.xMin; + h = face->bbox.yMax - face->bbox.yMin; + break; + + case FT_SIZE_REQUEST_TYPE_CELL: + w = face->max_advance_width; + h = face->ascender - face->descender; + break; + + case FT_SIZE_REQUEST_TYPE_SCALES: + metrics->x_scale = (FT_Fixed)req->width; + metrics->y_scale = (FT_Fixed)req->height; + if ( !metrics->x_scale ) + metrics->x_scale = metrics->y_scale; + else if ( !metrics->y_scale ) + metrics->y_scale = metrics->x_scale; + goto Calculate_Ppem; + + case FT_SIZE_REQUEST_TYPE_MAX: + break; + } + + /* to be on the safe side */ + if ( w < 0 ) + w = -w; + + if ( h < 0 ) + h = -h; + + scaled_w = FT_REQUEST_WIDTH ( req ); + scaled_h = FT_REQUEST_HEIGHT( req ); + + /* determine scales */ + if ( req->width ) + { + metrics->x_scale = FT_DivFix( scaled_w, w ); + + if ( req->height ) + { + metrics->y_scale = FT_DivFix( scaled_h, h ); + + if ( req->type == FT_SIZE_REQUEST_TYPE_CELL ) + { + if ( metrics->y_scale > metrics->x_scale ) + metrics->y_scale = metrics->x_scale; + else + metrics->x_scale = metrics->y_scale; + } + } + else + { + metrics->y_scale = metrics->x_scale; + scaled_h = FT_MulDiv( scaled_w, h, w ); + } + } + else + { + metrics->x_scale = metrics->y_scale = FT_DivFix( scaled_h, h ); + scaled_w = FT_MulDiv( scaled_h, w, h ); + } + + Calculate_Ppem: + /* calculate the ppems */ + if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL ) + { + scaled_w = FT_MulFix( face->units_per_EM, metrics->x_scale ); + scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale ); + } + + metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 ); + metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 ); + + ft_recompute_scaled_metrics( face, metrics ); + } + else + { + FT_ZERO( metrics ); + metrics->x_scale = 1L << 16; + metrics->y_scale = 1L << 16; + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Select_Size( FT_Face face, + FT_Int strike_index ) + { + FT_Driver_Class clazz; + + + if ( !face || !FT_HAS_FIXED_SIZES( face ) ) + return FT_Err_Invalid_Face_Handle; + + if ( strike_index < 0 || strike_index >= face->num_fixed_sizes ) + return FT_Err_Invalid_Argument; + + clazz = face->driver->clazz; + + if ( clazz->select_size ) + return clazz->select_size( face->size, (FT_ULong)strike_index ); + + FT_Select_Metrics( face, (FT_ULong)strike_index ); + + return FT_Err_Ok; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Request_Size( FT_Face face, + FT_Size_Request req ) + { + FT_Driver_Class clazz; + FT_ULong strike_index; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !req || req->width < 0 || req->height < 0 || + req->type >= FT_SIZE_REQUEST_TYPE_MAX ) + return FT_Err_Invalid_Argument; + + clazz = face->driver->clazz; + + if ( clazz->request_size ) + return clazz->request_size( face->size, req ); + + /* + * The reason that a driver doesn't have `request_size' defined is + * either that the scaling here suffices or that the supported formats + * are bitmap-only and size matching is not implemented. + * + * In the latter case, a simple size matching is done. + */ + if ( !FT_IS_SCALABLE( face ) && FT_HAS_FIXED_SIZES( face ) ) + { + FT_Error error; + + + error = FT_Match_Size( face, req, 0, &strike_index ); + if ( error ) + return error; + + FT_TRACE3(( "FT_Request_Size: bitmap strike %lu matched\n", + strike_index )); + + return FT_Select_Size( face, (FT_Int)strike_index ); + } + + FT_Request_Metrics( face, req ); + + return FT_Err_Ok; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Char_Size( FT_Face face, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ) + { + FT_Size_RequestRec req; + + + if ( !char_width ) + char_width = char_height; + else if ( !char_height ) + char_height = char_width; + + if ( !horz_resolution ) + horz_resolution = vert_resolution; + else if ( !vert_resolution ) + vert_resolution = horz_resolution; + + if ( char_width < 1 * 64 ) + char_width = 1 * 64; + if ( char_height < 1 * 64 ) + char_height = 1 * 64; + + if ( !horz_resolution ) + horz_resolution = vert_resolution = 72; + + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = char_width; + req.height = char_height; + req.horiResolution = horz_resolution; + req.vertResolution = vert_resolution; + + return FT_Request_Size( face, &req ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Pixel_Sizes( FT_Face face, + FT_UInt pixel_width, + FT_UInt pixel_height ) + { + FT_Size_RequestRec req; + + + if ( pixel_width == 0 ) + pixel_width = pixel_height; + else if ( pixel_height == 0 ) + pixel_height = pixel_width; + + if ( pixel_width < 1 ) + pixel_width = 1; + if ( pixel_height < 1 ) + pixel_height = 1; + + /* use `>=' to avoid potential compiler warning on 16bit platforms */ + if ( pixel_width >= 0xFFFFU ) + pixel_width = 0xFFFFU; + if ( pixel_height >= 0xFFFFU ) + pixel_height = 0xFFFFU; + + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = pixel_width << 6; + req.height = pixel_height << 6; + req.horiResolution = 0; + req.vertResolution = 0; + + return FT_Request_Size( face, &req ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Kerning( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_UInt kern_mode, + FT_Vector *akerning ) + { + FT_Error error = FT_Err_Ok; + FT_Driver driver; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !akerning ) + return FT_Err_Invalid_Argument; + + driver = face->driver; + + akerning->x = 0; + akerning->y = 0; + + if ( driver->clazz->get_kerning ) + { + error = driver->clazz->get_kerning( face, + left_glyph, + right_glyph, + akerning ); + if ( !error ) + { + if ( kern_mode != FT_KERNING_UNSCALED ) + { + akerning->x = FT_MulFix( akerning->x, face->size->metrics.x_scale ); + akerning->y = FT_MulFix( akerning->y, face->size->metrics.y_scale ); + + if ( kern_mode != FT_KERNING_UNFITTED ) + { + /* we scale down kerning values for small ppem values */ + /* to avoid that rounding makes them too big. */ + /* `25' has been determined heuristically. */ + if ( face->size->metrics.x_ppem < 25 ) + akerning->x = FT_MulDiv( akerning->x, + face->size->metrics.x_ppem, 25 ); + if ( face->size->metrics.y_ppem < 25 ) + akerning->y = FT_MulDiv( akerning->y, + face->size->metrics.y_ppem, 25 ); + + akerning->x = FT_PIX_ROUND( akerning->x ); + akerning->y = FT_PIX_ROUND( akerning->y ); + } + } + } + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Track_Kerning( FT_Face face, + FT_Fixed point_size, + FT_Int degree, + FT_Fixed* akerning ) + { + FT_Service_Kerning service; + FT_Error error = FT_Err_Ok; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !akerning ) + return FT_Err_Invalid_Argument; + + FT_FACE_FIND_SERVICE( face, service, KERNING ); + if ( !service ) + return FT_Err_Unimplemented_Feature; + + error = service->get_track( face, + point_size, + degree, + akerning ); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Select_Charmap( FT_Face face, + FT_Encoding encoding ) + { + FT_CharMap* cur; + FT_CharMap* limit; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( encoding == FT_ENCODING_NONE ) + return FT_Err_Invalid_Argument; + + /* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */ + /* charmap available, i.e., one with UCS-4 characters, if possible. */ + /* */ + /* This is done by find_unicode_charmap() above, to share code. */ + if ( encoding == FT_ENCODING_UNICODE ) + return find_unicode_charmap( face ); + + cur = face->charmaps; + if ( !cur ) + return FT_Err_Invalid_CharMap_Handle; + + limit = cur + face->num_charmaps; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0]->encoding == encoding ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "FT_Select_Charmap: requested charmap is found (%d), " + "but in too late position to cache\n", + cur - face->charmaps )); + continue; + } +#endif + face->charmap = cur[0]; + return 0; + } + } + + return FT_Err_Invalid_Argument; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Charmap( FT_Face face, + FT_CharMap charmap ) + { + FT_CharMap* cur; + FT_CharMap* limit; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + cur = face->charmaps; + if ( !cur ) + return FT_Err_Invalid_CharMap_Handle; + if ( FT_Get_CMap_Format( charmap ) == 14 ) + return FT_Err_Invalid_Argument; + + limit = cur + face->num_charmaps; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] == charmap ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "FT_Set_Charmap: requested charmap is found (%d), " + "but in too late position to cache\n", + cur - face->charmaps )); + continue; + } +#endif + face->charmap = cur[0]; + return 0; + } + } + return FT_Err_Invalid_Argument; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Get_Charmap_Index( FT_CharMap charmap ) + { + FT_Int i; + + + if ( !charmap || !charmap->face ) + return -1; + + for ( i = 0; i < charmap->face->num_charmaps; i++ ) + if ( charmap->face->charmaps[i] == charmap ) + break; + + FT_ASSERT( i < charmap->face->num_charmaps ); + +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( i > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "FT_Get_Charmap_Index: requested charmap is found (%d), " + "but in too late position to cache\n", + i )); + return -i; + } +#endif + return i; + } + + + static void + ft_cmap_done_internal( FT_CMap cmap ) + { + FT_CMap_Class clazz = cmap->clazz; + FT_Face face = cmap->charmap.face; + FT_Memory memory = FT_FACE_MEMORY(face); + + + if ( clazz->done ) + clazz->done( cmap ); + + FT_FREE( cmap ); + } + + + FT_BASE_DEF( void ) + FT_CMap_Done( FT_CMap cmap ) + { + if ( cmap ) + { + FT_Face face = cmap->charmap.face; + FT_Memory memory = FT_FACE_MEMORY( face ); + FT_Error error; + FT_Int i, j; + + + for ( i = 0; i < face->num_charmaps; i++ ) + { + if ( (FT_CMap)face->charmaps[i] == cmap ) + { + FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1]; + + + if ( FT_RENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps - 1 ) ) + return; + + /* remove it from our list of charmaps */ + for ( j = i + 1; j < face->num_charmaps; j++ ) + { + if ( j == face->num_charmaps - 1 ) + face->charmaps[j - 1] = last_charmap; + else + face->charmaps[j - 1] = face->charmaps[j]; + } + + face->num_charmaps--; + + if ( (FT_CMap)face->charmap == cmap ) + face->charmap = NULL; + + ft_cmap_done_internal( cmap ); + + break; + } + } + } + } + + + FT_BASE_DEF( FT_Error ) + FT_CMap_New( FT_CMap_Class clazz, + FT_Pointer init_data, + FT_CharMap charmap, + FT_CMap *acmap ) + { + FT_Error error = FT_Err_Ok; + FT_Face face; + FT_Memory memory; + FT_CMap cmap = NULL; + + + if ( clazz == NULL || charmap == NULL || charmap->face == NULL ) + return FT_Err_Invalid_Argument; + + face = charmap->face; + memory = FT_FACE_MEMORY( face ); + + if ( !FT_ALLOC( cmap, clazz->size ) ) + { + cmap->charmap = *charmap; + cmap->clazz = clazz; + + if ( clazz->init ) + { + error = clazz->init( cmap, init_data ); + if ( error ) + goto Fail; + } + + /* add it to our list of charmaps */ + if ( FT_RENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps + 1 ) ) + goto Fail; + + face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap; + } + + Exit: + if ( acmap ) + *acmap = cmap; + + return error; + + Fail: + ft_cmap_done_internal( cmap ); + cmap = NULL; + goto Exit; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Char_Index( FT_Face face, + FT_ULong charcode ) + { + FT_UInt result = 0; + + + if ( face && face->charmap ) + { + FT_CMap cmap = FT_CMAP( face->charmap ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode ); + } + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_First_Char( FT_Face face, + FT_UInt *agindex ) + { + FT_ULong result = 0; + FT_UInt gindex = 0; + + + if ( face && face->charmap && face->num_glyphs ) + { + gindex = FT_Get_Char_Index( face, 0 ); + if ( gindex == 0 || gindex >= (FT_UInt)face->num_glyphs ) + result = FT_Get_Next_Char( face, 0, &gindex ); + } + + if ( agindex ) + *agindex = gindex; + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_Next_Char( FT_Face face, + FT_ULong charcode, + FT_UInt *agindex ) + { + FT_ULong result = 0; + FT_UInt gindex = 0; + + + if ( face && face->charmap && face->num_glyphs ) + { + FT_UInt32 code = (FT_UInt32)charcode; + FT_CMap cmap = FT_CMAP( face->charmap ); + + + do { + gindex = cmap->clazz->char_next( cmap, &code ); + } while ( gindex >= (FT_UInt)face->num_glyphs ); + + result = ( gindex == 0 ) ? 0 : code; + } + + if ( agindex ) + *agindex = gindex; + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Face_GetCharVariantIndex( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ) + { + FT_UInt result = 0; + + + if ( face && face->charmap && + face->charmap->encoding == FT_ENCODING_UNICODE ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + FT_CMap ucmap = FT_CMAP( face->charmap ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + if ( variantSelector > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" )); + FT_TRACE1(( " 0x%x is truncated\n", variantSelector )); + } + + result = vcmap->clazz->char_var_index( vcmap, ucmap, + (FT_UInt32)charcode, + (FT_UInt32)variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Face_GetCharVariantIsDefault( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ) + { + FT_Int result = -1; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + if ( variantSelector > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" )); + FT_TRACE1(( " 0x%x is truncated\n", variantSelector )); + } + + result = vcmap->clazz->char_var_default( vcmap, + (FT_UInt32)charcode, + (FT_UInt32)variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetVariantSelectors( FT_Face face ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + result = vcmap->clazz->variant_list( vcmap, memory ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetVariantsOfChar( FT_Face face, + FT_ULong charcode ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + + result = vcmap->clazz->charvariant_list( vcmap, memory, + (FT_UInt32)charcode ); + } + } + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetCharsOfVariant( FT_Face face, + FT_ULong variantSelector ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + if ( variantSelector > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" )); + FT_TRACE1(( " 0x%x is truncated\n", variantSelector )); + } + + result = vcmap->clazz->variantchar_list( vcmap, memory, + (FT_UInt32)variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Name_Index( FT_Face face, + FT_String* glyph_name ) + { + FT_UInt result = 0; + + + if ( face && FT_HAS_GLYPH_NAMES( face ) ) + { + FT_Service_GlyphDict service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + GLYPH_DICT ); + + if ( service && service->name_index ) + result = service->name_index( face, glyph_name ); + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Glyph_Name( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + /* clean up buffer */ + if ( buffer && buffer_max > 0 ) + ((FT_Byte*)buffer)[0] = 0; + + if ( face && + (FT_Long)glyph_index <= face->num_glyphs && + FT_HAS_GLYPH_NAMES( face ) ) + { + FT_Service_GlyphDict service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + GLYPH_DICT ); + + if ( service && service->get_name ) + error = service->get_name( face, glyph_index, buffer, buffer_max ); + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( const char* ) + FT_Get_Postscript_Name( FT_Face face ) + { + const char* result = NULL; + + + if ( !face ) + goto Exit; + + if ( !result ) + { + FT_Service_PsFontName service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + POSTSCRIPT_FONT_NAME ); + + if ( service && service->get_ps_font_name ) + result = service->get_ps_font_name( face ); + } + + Exit: + return result; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( void* ) + FT_Get_Sfnt_Table( FT_Face face, + FT_Sfnt_Tag tag ) + { + void* table = 0; + FT_Service_SFNT_Table service; + + + if ( face && FT_IS_SFNT( face ) ) + { + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service != NULL ) + table = service->get_table( face, tag ); + } + + return table; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Sfnt_Table( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ) + { + FT_Service_SFNT_Table service; + + + if ( !face || !FT_IS_SFNT( face ) ) + return FT_Err_Invalid_Face_Handle; + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service == NULL ) + return FT_Err_Unimplemented_Feature; + + return service->load_table( face, tag, offset, buffer, length ); + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Sfnt_Table_Info( FT_Face face, + FT_UInt table_index, + FT_ULong *tag, + FT_ULong *length ) + { + FT_Service_SFNT_Table service; + FT_ULong offset; + + + if ( !face || !FT_IS_SFNT( face ) ) + return FT_Err_Invalid_Face_Handle; + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service == NULL ) + return FT_Err_Unimplemented_Feature; + + return service->table_info( face, table_index, tag, &offset, length ); + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_CMap_Language_ID( FT_CharMap charmap ) + { + FT_Service_TTCMaps service; + FT_Face face; + TT_CMapInfo cmap_info; + + + if ( !charmap || !charmap->face ) + return 0; + + face = charmap->face; + FT_FACE_FIND_SERVICE( face, service, TT_CMAP ); + if ( service == NULL ) + return 0; + if ( service->get_cmap_info( charmap, &cmap_info )) + return 0; + + return cmap_info.language; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_Get_CMap_Format( FT_CharMap charmap ) + { + FT_Service_TTCMaps service; + FT_Face face; + TT_CMapInfo cmap_info; + + + if ( !charmap || !charmap->face ) + return -1; + + face = charmap->face; + FT_FACE_FIND_SERVICE( face, service, TT_CMAP ); + if ( service == NULL ) + return -1; + if ( service->get_cmap_info( charmap, &cmap_info )) + return -1; + + return cmap_info.format; + } + + + /* documentation is in ftsizes.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Activate_Size( FT_Size size ) + { + FT_Face face; + + + if ( size == NULL ) + return FT_Err_Invalid_Argument; + + face = size->face; + if ( face == NULL || face->driver == NULL ) + return FT_Err_Invalid_Argument; + + /* we don't need anything more complex than that; all size objects */ + /* are already listed by the face */ + face->size = size; + + return FT_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** R E N D E R E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* lookup a renderer by glyph format in the library's list */ + FT_BASE_DEF( FT_Renderer ) + FT_Lookup_Renderer( FT_Library library, + FT_Glyph_Format format, + FT_ListNode* node ) + { + FT_ListNode cur; + FT_Renderer result = 0; + + + if ( !library ) + goto Exit; + + cur = library->renderers.head; + + if ( node ) + { + if ( *node ) + cur = (*node)->next; + *node = 0; + } + + while ( cur ) + { + FT_Renderer renderer = FT_RENDERER( cur->data ); + + + if ( renderer->glyph_format == format ) + { + if ( node ) + *node = cur; + + result = renderer; + break; + } + cur = cur->next; + } + + Exit: + return result; + } + + + static FT_Renderer + ft_lookup_glyph_renderer( FT_GlyphSlot slot ) + { + FT_Face face = slot->face; + FT_Library library = FT_FACE_LIBRARY( face ); + FT_Renderer result = library->cur_renderer; + + + if ( !result || result->glyph_format != slot->format ) + result = FT_Lookup_Renderer( library, slot->format, 0 ); + + return result; + } + + + static void + ft_set_current_renderer( FT_Library library ) + { + FT_Renderer renderer; + + + renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 ); + library->cur_renderer = renderer; + } + + + static FT_Error + ft_add_renderer( FT_Module module ) + { + FT_Library library = module->library; + FT_Memory memory = library->memory; + FT_Error error; + FT_ListNode node = NULL; + + + if ( FT_NEW( node ) ) + goto Exit; + + { + FT_Renderer render = FT_RENDERER( module ); + FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz; + + + render->clazz = clazz; + render->glyph_format = clazz->glyph_format; + + /* allocate raster object if needed */ + if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + clazz->raster_class->raster_new ) + { + error = clazz->raster_class->raster_new( memory, &render->raster ); + if ( error ) + goto Fail; + + render->raster_render = clazz->raster_class->raster_render; + render->render = clazz->render_glyph; + } + + /* add to list */ + node->data = module; + FT_List_Add( &library->renderers, node ); + + ft_set_current_renderer( library ); + } + + Fail: + if ( error ) + FT_FREE( node ); + + Exit: + return error; + } + + + static void + ft_remove_renderer( FT_Module module ) + { + FT_Library library = module->library; + FT_Memory memory = library->memory; + FT_ListNode node; + + + node = FT_List_Find( &library->renderers, module ); + if ( node ) + { + FT_Renderer render = FT_RENDERER( module ); + + + /* release raster object, if any */ + if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + render->raster ) + render->clazz->raster_class->raster_done( render->raster ); + + /* remove from list */ + FT_List_Remove( &library->renderers, node ); + FT_FREE( node ); + + ft_set_current_renderer( library ); + } + } + + + /* documentation is in ftrender.h */ + + FT_EXPORT_DEF( FT_Renderer ) + FT_Get_Renderer( FT_Library library, + FT_Glyph_Format format ) + { + /* test for valid `library' delayed to FT_Lookup_Renderer() */ + + return FT_Lookup_Renderer( library, format, 0 ); + } + + + /* documentation is in ftrender.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Renderer( FT_Library library, + FT_Renderer renderer, + FT_UInt num_params, + FT_Parameter* parameters ) + { + FT_ListNode node; + FT_Error error = FT_Err_Ok; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !renderer ) + return FT_Err_Invalid_Argument; + + node = FT_List_Find( &library->renderers, renderer ); + if ( !node ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_List_Up( &library->renderers, node ); + + if ( renderer->glyph_format == FT_GLYPH_FORMAT_OUTLINE ) + library->cur_renderer = renderer; + + if ( num_params > 0 ) + { + FT_Renderer_SetModeFunc set_mode = renderer->clazz->set_mode; + + + for ( ; num_params > 0; num_params-- ) + { + error = set_mode( renderer, parameters->tag, parameters->data ); + if ( error ) + break; + parameters++; + } + } + + Exit: + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Render_Glyph_Internal( FT_Library library, + FT_GlyphSlot slot, + FT_Render_Mode render_mode ) + { + FT_Error error = FT_Err_Ok; + FT_Renderer renderer; + + + /* if it is already a bitmap, no need to do anything */ + switch ( slot->format ) + { + case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */ + break; + + default: + { + FT_ListNode node = 0; + FT_Bool update = 0; + + + /* small shortcut for the very common case */ + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + renderer = library->cur_renderer; + node = library->renderers.head; + } + else + renderer = FT_Lookup_Renderer( library, slot->format, &node ); + + error = FT_Err_Unimplemented_Feature; + while ( renderer ) + { + error = renderer->render( renderer, slot, render_mode, NULL ); + if ( !error || + FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph ) + break; + + /* FT_Err_Cannot_Render_Glyph is returned if the render mode */ + /* is unsupported by the current renderer for this glyph image */ + /* format. */ + + /* now, look for another renderer that supports the same */ + /* format. */ + renderer = FT_Lookup_Renderer( library, slot->format, &node ); + update = 1; + } + + /* if we changed the current renderer for the glyph image format */ + /* we need to select it as the next current one */ + if ( !error && update && renderer ) + FT_Set_Renderer( library, renderer, 0, 0 ); + } + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Render_Glyph( FT_GlyphSlot slot, + FT_Render_Mode render_mode ) + { + FT_Library library; + + + if ( !slot || !slot->face ) + return FT_Err_Invalid_Argument; + + library = FT_FACE_LIBRARY( slot->face ); + + return FT_Render_Glyph_Internal( library, slot, render_mode ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M O D U L E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Destroy_Module */ + /* */ + /* <Description> */ + /* Destroys a given module object. For drivers, this also destroys */ + /* all child faces. */ + /* */ + /* <InOut> */ + /* module :: A handle to the target driver object. */ + /* */ + /* <Note> */ + /* The driver _must_ be LOCKED! */ + /* */ + static void + Destroy_Module( FT_Module module ) + { + FT_Memory memory = module->memory; + FT_Module_Class* clazz = module->clazz; + FT_Library library = module->library; + + + /* finalize client-data - before anything else */ + if ( module->generic.finalizer ) + module->generic.finalizer( module ); + + if ( library && library->auto_hinter == module ) + library->auto_hinter = 0; + + /* if the module is a renderer */ + if ( FT_MODULE_IS_RENDERER( module ) ) + ft_remove_renderer( module ); + + /* if the module is a font driver, add some steps */ + if ( FT_MODULE_IS_DRIVER( module ) ) + Destroy_Driver( FT_DRIVER( module ) ); + + /* finalize the module object */ + if ( clazz->module_done ) + clazz->module_done( module ); + + /* discard it */ + FT_FREE( module ); + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Add_Module( FT_Library library, + const FT_Module_Class* clazz ) + { + FT_Error error; + FT_Memory memory; + FT_Module module; + FT_UInt nn; + + +#define FREETYPE_VER_FIXED ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \ + FREETYPE_MINOR ) + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !clazz ) + return FT_Err_Invalid_Argument; + + /* check freetype version */ + if ( clazz->module_requires > FREETYPE_VER_FIXED ) + return FT_Err_Invalid_Version; + + /* look for a module with the same name in the library's table */ + for ( nn = 0; nn < library->num_modules; nn++ ) + { + module = library->modules[nn]; + if ( ft_strcmp( module->clazz->module_name, clazz->module_name ) == 0 ) + { + /* this installed module has the same name, compare their versions */ + if ( clazz->module_version <= module->clazz->module_version ) + return FT_Err_Lower_Module_Version; + + /* remove the module from our list, then exit the loop to replace */ + /* it by our new version.. */ + FT_Remove_Module( library, module ); + break; + } + } + + memory = library->memory; + error = FT_Err_Ok; + + if ( library->num_modules >= FT_MAX_MODULES ) + { + error = FT_Err_Too_Many_Drivers; + goto Exit; + } + + /* allocate module object */ + if ( FT_ALLOC( module, clazz->module_size ) ) + goto Exit; + + /* base initialization */ + module->library = library; + module->memory = memory; + module->clazz = (FT_Module_Class*)clazz; + + /* check whether the module is a renderer - this must be performed */ + /* before the normal module initialization */ + if ( FT_MODULE_IS_RENDERER( module ) ) + { + /* add to the renderers list */ + error = ft_add_renderer( module ); + if ( error ) + goto Fail; + } + + /* is the module a auto-hinter? */ + if ( FT_MODULE_IS_HINTER( module ) ) + library->auto_hinter = module; + + /* if the module is a font driver */ + if ( FT_MODULE_IS_DRIVER( module ) ) + { + /* allocate glyph loader if needed */ + FT_Driver driver = FT_DRIVER( module ); + + + driver->clazz = (FT_Driver_Class)module->clazz; + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + { + error = FT_GlyphLoader_New( memory, &driver->glyph_loader ); + if ( error ) + goto Fail; + } + } + + if ( clazz->module_init ) + { + error = clazz->module_init( module ); + if ( error ) + goto Fail; + } + + /* add module to the library's table */ + library->modules[library->num_modules++] = module; + + Exit: + return error; + + Fail: + if ( FT_MODULE_IS_DRIVER( module ) ) + { + FT_Driver driver = FT_DRIVER( module ); + + + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + FT_GlyphLoader_Done( driver->glyph_loader ); + } + + if ( FT_MODULE_IS_RENDERER( module ) ) + { + FT_Renderer renderer = FT_RENDERER( module ); + + + if ( renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + renderer->raster ) + renderer->clazz->raster_class->raster_done( renderer->raster ); + } + + FT_FREE( module ); + goto Exit; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Module ) + FT_Get_Module( FT_Library library, + const char* module_name ) + { + FT_Module result = 0; + FT_Module* cur; + FT_Module* limit; + + + if ( !library || !module_name ) + return result; + + cur = library->modules; + limit = cur + library->num_modules; + + for ( ; cur < limit; cur++ ) + if ( ft_strcmp( cur[0]->clazz->module_name, module_name ) == 0 ) + { + result = cur[0]; + break; + } + + return result; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( const void* ) + FT_Get_Module_Interface( FT_Library library, + const char* mod_name ) + { + FT_Module module; + + + /* test for valid `library' delayed to FT_Get_Module() */ + + module = FT_Get_Module( library, mod_name ); + + return module ? module->clazz->module_interface : 0; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_module_get_service( FT_Module module, + const char* service_id ) + { + FT_Pointer result = NULL; + + if ( module ) + { + FT_ASSERT( module->clazz && module->clazz->get_interface ); + + /* first, look for the service in the module + */ + if ( module->clazz->get_interface ) + result = module->clazz->get_interface( module, service_id ); + + if ( result == NULL ) + { + /* we didn't find it, look in all other modules then + */ + FT_Library library = module->library; + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] != module ) + { + FT_ASSERT( cur[0]->clazz ); + + if ( cur[0]->clazz->get_interface ) + { + result = cur[0]->clazz->get_interface( cur[0], service_id ); + if ( result != NULL ) + break; + } + } + } + } + } + + return result; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Remove_Module( FT_Library library, + FT_Module module ) + { + /* try to find the module from the table, then remove it from there */ + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( module ) + { + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] == module ) + { + /* remove it from the table */ + library->num_modules--; + limit--; + while ( cur < limit ) + { + cur[0] = cur[1]; + cur++; + } + limit[0] = 0; + + /* destroy the module */ + Destroy_Module( module ); + + return FT_Err_Ok; + } + } + } + return FT_Err_Invalid_Driver_Handle; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** L I B R A R Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Reference_Library( FT_Library library ) + { + library->refcount++; + + return FT_Err_Ok; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Library( FT_Memory memory, + FT_Library *alibrary ) + { + FT_Library library = NULL; + FT_Error error; + + + if ( !memory ) + return FT_Err_Invalid_Argument; + +#ifdef FT_DEBUG_LEVEL_ERROR + /* init debugging support */ + ft_debug_init(); +#endif + + /* first of all, allocate the library object */ + if ( FT_NEW( library ) ) + return error; + + library->memory = memory; + +#ifdef FT_CONFIG_OPTION_PIC + /* initialize position independent code containers */ + error = ft_pic_container_init( library ); + if ( error ) + goto Fail; +#endif + + /* allocate the render pool */ + library->raster_pool_size = FT_RENDER_POOL_SIZE; +#if FT_RENDER_POOL_SIZE > 0 + if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) ) + goto Fail; +#endif + + library->version_major = FREETYPE_MAJOR; + library->version_minor = FREETYPE_MINOR; + library->version_patch = FREETYPE_PATCH; + + library->refcount = 1; + + /* That's ok now */ + *alibrary = library; + + return FT_Err_Ok; + + Fail: +#ifdef FT_CONFIG_OPTION_PIC + ft_pic_container_destroy( library ); +#endif + FT_FREE( library ); + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Library_Version( FT_Library library, + FT_Int *amajor, + FT_Int *aminor, + FT_Int *apatch ) + { + FT_Int major = 0; + FT_Int minor = 0; + FT_Int patch = 0; + + + if ( library ) + { + major = library->version_major; + minor = library->version_minor; + patch = library->version_patch; + } + + if ( amajor ) + *amajor = major; + + if ( aminor ) + *aminor = minor; + + if ( apatch ) + *apatch = patch; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Library( FT_Library library ) + { + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + library->refcount--; + if ( library->refcount > 0 ) + goto Exit; + + memory = library->memory; + + /* Discard client-data */ + if ( library->generic.finalizer ) + library->generic.finalizer( library ); + + /* + * Close all faces in the library. If we don't do this, we can have + * some subtle memory leaks. + * + * Example: + * + * - the cff font driver uses the pshinter module in cff_size_done + * - if the pshinter module is destroyed before the cff font driver, + * opened FT_Face objects managed by the driver are not properly + * destroyed, resulting in a memory leak + * + * Some faces are dependent on other faces, like Type42 faces that + * depend on TrueType faces synthesized internally. + * + * The order of drivers should be specified in driver_name[]. + */ + { + FT_UInt m, n; + const char* driver_name[] = { "type42", NULL }; + + + for ( m = 0; + m < sizeof ( driver_name ) / sizeof ( driver_name[0] ); + m++ ) + { + for ( n = 0; n < library->num_modules; n++ ) + { + FT_Module module = library->modules[n]; + const char* module_name = module->clazz->module_name; + FT_List faces; + + + if ( driver_name[m] && + ft_strcmp( module_name, driver_name[m] ) != 0 ) + continue; + + if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 ) + continue; + + FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name )); + + faces = &FT_DRIVER( module )->faces_list; + while ( faces->head ) + { + FT_Done_Face( FT_FACE( faces->head->data ) ); + if ( faces->head ) + FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" )); + } + } + } + } + + /* Close all other modules in the library */ +#if 1 + /* XXX Modules are removed in the reversed order so that */ + /* type42 module is removed before truetype module. This */ + /* avoids double free in some occasions. It is a hack. */ + while ( library->num_modules > 0 ) + FT_Remove_Module( library, + library->modules[library->num_modules - 1] ); +#else + { + FT_UInt n; + + + for ( n = 0; n < library->num_modules; n++ ) + { + FT_Module module = library->modules[n]; + + + if ( module ) + { + Destroy_Module( module ); + library->modules[n] = 0; + } + } + } +#endif + + /* Destroy raster objects */ + FT_FREE( library->raster_pool ); + library->raster_pool_size = 0; + +#ifdef FT_CONFIG_OPTION_PIC + /* Destroy pic container contents */ + ft_pic_container_destroy( library ); +#endif + + FT_FREE( library ); + + Exit: + return FT_Err_Ok; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Debug_Hook( FT_Library library, + FT_UInt hook_index, + FT_DebugHook_Func debug_hook ) + { + if ( library && debug_hook && + hook_index < + ( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) ) + library->debug_hooks[hook_index] = debug_hook; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_TrueTypeEngineType ) + FT_Get_TrueType_Engine_Type( FT_Library library ) + { + FT_TrueTypeEngineType result = FT_TRUETYPE_ENGINE_TYPE_NONE; + + + if ( library ) + { + FT_Module module = FT_Get_Module( library, "truetype" ); + + + if ( module ) + { + FT_Service_TrueTypeEngine service; + + + service = (FT_Service_TrueTypeEngine) + ft_module_get_service( module, + FT_SERVICE_ID_TRUETYPE_ENGINE ); + if ( service ) + result = service->engine_type; + } + } + + return result; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE_DEF( FT_Error ) + ft_stub_set_char_sizes( FT_Size size, + FT_F26Dot6 width, + FT_F26Dot6 height, + FT_UInt horz_res, + FT_UInt vert_res ) + { + FT_Size_RequestRec req; + FT_Driver driver = size->face->driver; + + + if ( driver->clazz->request_size ) + { + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = width; + req.height = height; + + if ( horz_res == 0 ) + horz_res = vert_res; + + if ( vert_res == 0 ) + vert_res = horz_res; + + if ( horz_res == 0 ) + horz_res = vert_res = 72; + + req.horiResolution = horz_res; + req.vertResolution = vert_res; + + return driver->clazz->request_size( size, &req ); + } + + return 0; + } + + + FT_BASE_DEF( FT_Error ) + ft_stub_set_pixel_sizes( FT_Size size, + FT_UInt width, + FT_UInt height ) + { + FT_Size_RequestRec req; + FT_Driver driver = size->face->driver; + + + if ( driver->clazz->request_size ) + { + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = width << 6; + req.height = height << 6; + req.horiResolution = 0; + req.vertResolution = 0; + + return driver->clazz->request_size( size, &req ); + } + + return 0; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_SubGlyph_Info( FT_GlyphSlot glyph, + FT_UInt sub_index, + FT_Int *p_index, + FT_UInt *p_flags, + FT_Int *p_arg1, + FT_Int *p_arg2, + FT_Matrix *p_transform ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( glyph && + glyph->subglyphs && + glyph->format == FT_GLYPH_FORMAT_COMPOSITE && + sub_index < glyph->num_subglyphs ) + { + FT_SubGlyph subg = glyph->subglyphs + sub_index; + + + *p_index = subg->index; + *p_flags = subg->flags; + *p_arg1 = subg->arg1; + *p_arg2 = subg->arg2; + *p_transform = subg->transform; + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftotval.c b/uppsrc/plugin/FT_fontsys/src/base/ftotval.c new file mode 100644 index 000000000..74dd8d387 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftotval.c @@ -0,0 +1,89 @@ +/***************************************************************************/ +/* */ +/* ftotval.c */ +/* */ +/* FreeType API for validating OpenType tables (body). */ +/* */ +/* Copyright 2004, 2006, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_OPENTYPE_VALIDATE_H +#include FT_OPENTYPE_VALIDATE_H + + + /* documentation is in ftotval.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_OpenType_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *BASE_table, + FT_Bytes *GDEF_table, + FT_Bytes *GPOS_table, + FT_Bytes *GSUB_table, + FT_Bytes *JSTF_table ) + { + FT_Service_OTvalidate service; + FT_Error error; + + + if ( !face ) + { + error = FT_Err_Invalid_Face_Handle; + goto Exit; + } + + if ( !( BASE_table && + GDEF_table && + GPOS_table && + GSUB_table && + JSTF_table ) ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, service, OPENTYPE_VALIDATE ); + + if ( service ) + error = service->validate( face, + validation_flags, + BASE_table, + GDEF_table, + GPOS_table, + GSUB_table, + JSTF_table ); + else + error = FT_Err_Unimplemented_Feature; + + Exit: + return error; + } + + + FT_EXPORT_DEF( void ) + FT_OpenType_Free( FT_Face face, + FT_Bytes table ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + FT_FREE( table ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftoutln.c b/uppsrc/plugin/FT_fontsys/src/base/ftoutln.c new file mode 100644 index 000000000..c00537d76 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftoutln.c @@ -0,0 +1,1129 @@ +/***************************************************************************/ +/* */ +/* ftoutln.c */ +/* */ +/* FreeType outline management (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* All functions are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_TRIGONOMETRY_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_outline + + + static + const FT_Outline null_outline = { 0, 0, 0, 0, 0, 0 }; + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Decompose( FT_Outline* outline, + const FT_Outline_Funcs* func_interface, + void* user ) + { +#undef SCALED +#define SCALED( x ) ( ( (x) << shift ) - delta ) + + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* point; + FT_Vector* limit; + char* tags; + + FT_Error error; + + FT_Int n; /* index of contour in outline */ + FT_UInt first; /* index of first point in contour */ + FT_Int tag; /* current point's state */ + + FT_Int shift; + FT_Pos delta; + + + if ( !outline || !func_interface ) + return FT_Err_Invalid_Argument; + + shift = func_interface->shift; + delta = func_interface->delta; + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + FT_Int last; /* index of last point in contour */ + + + FT_TRACE5(( "FT_Outline_Decompose: Outline %d\n", n )); + + last = outline->contours[n]; + if ( last < 0 ) + goto Invalid_Outline; + limit = outline->points + last; + + v_start = outline->points[first]; + v_start.x = SCALED( v_start.x ); + v_start.y = SCALED( v_start.y ); + + v_last = outline->points[last]; + v_last.x = SCALED( v_last.x ); + v_last.y = SCALED( v_last.y ); + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* first point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + + v_last = v_start; + } + point--; + tags--; + } + + FT_TRACE5(( " move to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->move_to( &v_start, user ); + if ( error ) + goto Exit; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " line to (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0 )); + error = func_interface->line_to( &vec, user ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED( point->x ); + v_control.y = SCALED( point->y ); + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + if ( tag == FT_CURVE_TAG_ON ) + { + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + vec.x ) / 2; + v_middle.y = ( v_control.y + vec.y ) / 2; + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_middle.x / 64.0, v_middle.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_middle, user ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_start, user ); + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + FT_Vector vec1, vec2; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1.x = SCALED( point[-2].x ); + vec1.y = SCALED( point[-2].y ); + + vec2.x = SCALED( point[-1].x ); + vec2.y = SCALED( point[-1].y ); + + if ( point <= limit ) + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &v_start, user ); + goto Close; + } + } + } + + /* close the contour with a line segment */ + FT_TRACE5(( " line to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->line_to( &v_start, user ); + + Close: + if ( error ) + goto Exit; + + first = last + 1; + } + + FT_TRACE5(( "FT_Outline_Decompose: Done\n", n )); + return FT_Err_Ok; + + Exit: + FT_TRACE5(( "FT_Outline_Decompose: Error %d\n", error )); + return error; + + Invalid_Outline: + return FT_Err_Invalid_Outline; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_New_Internal( FT_Memory memory, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ) + { + FT_Error error; + + + if ( !anoutline || !memory ) + return FT_Err_Invalid_Argument; + + *anoutline = null_outline; + + if ( FT_NEW_ARRAY( anoutline->points, numPoints ) || + FT_NEW_ARRAY( anoutline->tags, numPoints ) || + FT_NEW_ARRAY( anoutline->contours, numContours ) ) + goto Fail; + + anoutline->n_points = (FT_UShort)numPoints; + anoutline->n_contours = (FT_Short)numContours; + anoutline->flags |= FT_OUTLINE_OWNER; + + return FT_Err_Ok; + + Fail: + anoutline->flags |= FT_OUTLINE_OWNER; + FT_Outline_Done_Internal( memory, anoutline ); + + return error; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_New( FT_Library library, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ) + { + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + return FT_Outline_New_Internal( library->memory, numPoints, + numContours, anoutline ); + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Check( FT_Outline* outline ) + { + if ( outline ) + { + FT_Int n_points = outline->n_points; + FT_Int n_contours = outline->n_contours; + FT_Int end0, end; + FT_Int n; + + + /* empty glyph? */ + if ( n_points == 0 && n_contours == 0 ) + return 0; + + /* check point and contour counts */ + if ( n_points <= 0 || n_contours <= 0 ) + goto Bad; + + end0 = end = -1; + for ( n = 0; n < n_contours; n++ ) + { + end = outline->contours[n]; + + /* note that we don't accept empty contours */ + if ( end <= end0 || end >= n_points ) + goto Bad; + + end0 = end; + } + + if ( end != n_points - 1 ) + goto Bad; + + /* XXX: check the tags array */ + return 0; + } + + Bad: + return FT_Err_Invalid_Argument; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Copy( const FT_Outline* source, + FT_Outline *target ) + { + FT_Int is_owner; + + + if ( !source || !target || + source->n_points != target->n_points || + source->n_contours != target->n_contours ) + return FT_Err_Invalid_Argument; + + if ( source == target ) + return FT_Err_Ok; + + FT_ARRAY_COPY( target->points, source->points, source->n_points ); + + FT_ARRAY_COPY( target->tags, source->tags, source->n_points ); + + FT_ARRAY_COPY( target->contours, source->contours, source->n_contours ); + + /* copy all flags, except the `FT_OUTLINE_OWNER' one */ + is_owner = target->flags & FT_OUTLINE_OWNER; + target->flags = source->flags; + + target->flags &= ~FT_OUTLINE_OWNER; + target->flags |= is_owner; + + return FT_Err_Ok; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Done_Internal( FT_Memory memory, + FT_Outline* outline ) + { + if ( memory && outline ) + { + if ( outline->flags & FT_OUTLINE_OWNER ) + { + FT_FREE( outline->points ); + FT_FREE( outline->tags ); + FT_FREE( outline->contours ); + } + *outline = null_outline; + + return FT_Err_Ok; + } + else + return FT_Err_Invalid_Argument; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Done( FT_Library library, + FT_Outline* outline ) + { + /* check for valid `outline' in FT_Outline_Done_Internal() */ + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + return FT_Outline_Done_Internal( library->memory, outline ); + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Get_CBox( const FT_Outline* outline, + FT_BBox *acbox ) + { + FT_Pos xMin, yMin, xMax, yMax; + + + if ( outline && acbox ) + { + if ( outline->n_points == 0 ) + { + xMin = 0; + yMin = 0; + xMax = 0; + yMax = 0; + } + else + { + FT_Vector* vec = outline->points; + FT_Vector* limit = vec + outline->n_points; + + + xMin = xMax = vec->x; + yMin = yMax = vec->y; + vec++; + + for ( ; vec < limit; vec++ ) + { + FT_Pos x, y; + + + x = vec->x; + if ( x < xMin ) xMin = x; + if ( x > xMax ) xMax = x; + + y = vec->y; + if ( y < yMin ) yMin = y; + if ( y > yMax ) yMax = y; + } + } + acbox->xMin = xMin; + acbox->xMax = xMax; + acbox->yMin = yMin; + acbox->yMax = yMax; + } + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Translate( const FT_Outline* outline, + FT_Pos xOffset, + FT_Pos yOffset ) + { + FT_UShort n; + FT_Vector* vec; + + + if ( !outline ) + return; + + vec = outline->points; + + for ( n = 0; n < outline->n_points; n++ ) + { + vec->x += xOffset; + vec->y += yOffset; + vec++; + } + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Reverse( FT_Outline* outline ) + { + FT_UShort n; + FT_Int first, last; + + + if ( !outline ) + return; + + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + last = outline->contours[n]; + + /* reverse point table */ + { + FT_Vector* p = outline->points + first; + FT_Vector* q = outline->points + last; + FT_Vector swap; + + + while ( p < q ) + { + swap = *p; + *p = *q; + *q = swap; + p++; + q--; + } + } + + /* reverse tags table */ + { + char* p = outline->tags + first; + char* q = outline->tags + last; + char swap; + + + while ( p < q ) + { + swap = *p; + *p = *q; + *q = swap; + p++; + q--; + } + } + + first = last + 1; + } + + outline->flags ^= FT_OUTLINE_REVERSE_FILL; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Render( FT_Library library, + FT_Outline* outline, + FT_Raster_Params* params ) + { + FT_Error error; + FT_Bool update = FALSE; + FT_Renderer renderer; + FT_ListNode node; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !outline || !params ) + return FT_Err_Invalid_Argument; + + renderer = library->cur_renderer; + node = library->renderers.head; + + params->source = (void*)outline; + + error = FT_Err_Cannot_Render_Glyph; + while ( renderer ) + { + error = renderer->raster_render( renderer->raster, params ); + if ( !error || FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph ) + break; + + /* FT_Err_Cannot_Render_Glyph is returned if the render mode */ + /* is unsupported by the current renderer for this glyph image */ + /* format */ + + /* now, look for another renderer that supports the same */ + /* format */ + renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, + &node ); + update = TRUE; + } + + /* if we changed the current renderer for the glyph image format */ + /* we need to select it as the next current one */ + if ( !error && update && renderer ) + FT_Set_Renderer( library, renderer, 0, 0 ); + + return error; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Get_Bitmap( FT_Library library, + FT_Outline* outline, + const FT_Bitmap *abitmap ) + { + FT_Raster_Params params; + + + if ( !abitmap ) + return FT_Err_Invalid_Argument; + + /* other checks are delayed to FT_Outline_Render() */ + + params.target = abitmap; + params.flags = 0; + + if ( abitmap->pixel_mode == FT_PIXEL_MODE_GRAY || + abitmap->pixel_mode == FT_PIXEL_MODE_LCD || + abitmap->pixel_mode == FT_PIXEL_MODE_LCD_V ) + params.flags |= FT_RASTER_FLAG_AA; + + return FT_Outline_Render( library, outline, ¶ms ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Transform( FT_Vector* vector, + const FT_Matrix* matrix ) + { + FT_Pos xz, yz; + + + if ( !vector || !matrix ) + return; + + xz = FT_MulFix( vector->x, matrix->xx ) + + FT_MulFix( vector->y, matrix->xy ); + + yz = FT_MulFix( vector->x, matrix->yx ) + + FT_MulFix( vector->y, matrix->yy ); + + vector->x = xz; + vector->y = yz; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Transform( const FT_Outline* outline, + const FT_Matrix* matrix ) + { + FT_Vector* vec; + FT_Vector* limit; + + + if ( !outline || !matrix ) + return; + + vec = outline->points; + limit = vec + outline->n_points; + + for ( ; vec < limit; vec++ ) + FT_Vector_Transform( vec, matrix ); + } + + +#if 0 + +#define FT_OUTLINE_GET_CONTOUR( outline, c, first, last ) \ + do { \ + (first) = ( c > 0 ) ? (outline)->points + \ + (outline)->contours[c - 1] + 1 \ + : (outline)->points; \ + (last) = (outline)->points + (outline)->contours[c]; \ + } while ( 0 ) + + + /* Is a point in some contour? */ + /* */ + /* We treat every point of the contour as if it */ + /* it were ON. That is, we allow false positives, */ + /* but disallow false negatives. (XXX really?) */ + static FT_Bool + ft_contour_has( FT_Outline* outline, + FT_Short c, + FT_Vector* point ) + { + FT_Vector* first; + FT_Vector* last; + FT_Vector* a; + FT_Vector* b; + FT_UInt n = 0; + + + FT_OUTLINE_GET_CONTOUR( outline, c, first, last ); + + for ( a = first; a <= last; a++ ) + { + FT_Pos x; + FT_Int intersect; + + + b = ( a == last ) ? first : a + 1; + + intersect = ( a->y - point->y ) ^ ( b->y - point->y ); + + /* a and b are on the same side */ + if ( intersect >= 0 ) + { + if ( intersect == 0 && a->y == point->y ) + { + if ( ( a->x <= point->x && b->x >= point->x ) || + ( a->x >= point->x && b->x <= point->x ) ) + return 1; + } + + continue; + } + + x = a->x + ( b->x - a->x ) * (point->y - a->y ) / ( b->y - a->y ); + + if ( x < point->x ) + n++; + else if ( x == point->x ) + return 1; + } + + return ( n % 2 ); + } + + + static FT_Bool + ft_contour_enclosed( FT_Outline* outline, + FT_UShort c ) + { + FT_Vector* first; + FT_Vector* last; + FT_Short i; + + + FT_OUTLINE_GET_CONTOUR( outline, c, first, last ); + + for ( i = 0; i < outline->n_contours; i++ ) + { + if ( i != c && ft_contour_has( outline, i, first ) ) + { + FT_Vector* pt; + + + for ( pt = first + 1; pt <= last; pt++ ) + if ( !ft_contour_has( outline, i, pt ) ) + return 0; + + return 1; + } + } + + return 0; + } + + + /* This version differs from the public one in that each */ + /* part (contour not enclosed in another contour) of the */ + /* outline is checked for orientation. This is */ + /* necessary for some buggy CJK fonts. */ + static FT_Orientation + ft_outline_get_orientation( FT_Outline* outline ) + { + FT_Short i; + FT_Vector* first; + FT_Vector* last; + FT_Orientation orient = FT_ORIENTATION_NONE; + + + first = outline->points; + for ( i = 0; i < outline->n_contours; i++, first = last + 1 ) + { + FT_Vector* point; + FT_Vector* xmin_point; + FT_Pos xmin; + + + last = outline->points + outline->contours[i]; + + /* skip degenerate contours */ + if ( last < first + 2 ) + continue; + + if ( ft_contour_enclosed( outline, i ) ) + continue; + + xmin = first->x; + xmin_point = first; + + for ( point = first + 1; point <= last; point++ ) + { + if ( point->x < xmin ) + { + xmin = point->x; + xmin_point = point; + } + } + + /* check the orientation of the contour */ + { + FT_Vector* prev; + FT_Vector* next; + FT_Orientation o; + + + prev = ( xmin_point == first ) ? last : xmin_point - 1; + next = ( xmin_point == last ) ? first : xmin_point + 1; + + if ( FT_Atan2( prev->x - xmin_point->x, prev->y - xmin_point->y ) > + FT_Atan2( next->x - xmin_point->x, next->y - xmin_point->y ) ) + o = FT_ORIENTATION_POSTSCRIPT; + else + o = FT_ORIENTATION_TRUETYPE; + + if ( orient == FT_ORIENTATION_NONE ) + orient = o; + else if ( orient != o ) + return FT_ORIENTATION_NONE; + } + } + + return orient; + } + +#endif /* 0 */ + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Embolden( FT_Outline* outline, + FT_Pos strength ) + { + FT_Vector* points; + FT_Vector v_prev, v_first, v_next, v_cur; + FT_Angle rotate, angle_in, angle_out; + FT_Int c, n, first; + FT_Int orientation; + + + if ( !outline ) + return FT_Err_Invalid_Argument; + + strength /= 2; + if ( strength == 0 ) + return FT_Err_Ok; + + orientation = FT_Outline_Get_Orientation( outline ); + if ( orientation == FT_ORIENTATION_NONE ) + { + if ( outline->n_contours ) + return FT_Err_Invalid_Argument; + else + return FT_Err_Ok; + } + + if ( orientation == FT_ORIENTATION_TRUETYPE ) + rotate = -FT_ANGLE_PI2; + else + rotate = FT_ANGLE_PI2; + + points = outline->points; + + first = 0; + for ( c = 0; c < outline->n_contours; c++ ) + { + int last = outline->contours[c]; + + + v_first = points[first]; + v_prev = points[last]; + v_cur = v_first; + + for ( n = first; n <= last; n++ ) + { + FT_Vector in, out; + FT_Angle angle_diff; + FT_Pos d; + FT_Fixed scale; + + + if ( n < last ) + v_next = points[n + 1]; + else + v_next = v_first; + + /* compute the in and out vectors */ + in.x = v_cur.x - v_prev.x; + in.y = v_cur.y - v_prev.y; + + out.x = v_next.x - v_cur.x; + out.y = v_next.y - v_cur.y; + + angle_in = FT_Atan2( in.x, in.y ); + angle_out = FT_Atan2( out.x, out.y ); + angle_diff = FT_Angle_Diff( angle_in, angle_out ); + scale = FT_Cos( angle_diff / 2 ); + + if ( scale < 0x4000L && scale > -0x4000L ) + in.x = in.y = 0; + else + { + d = FT_DivFix( strength, scale ); + + FT_Vector_From_Polar( &in, d, angle_in + angle_diff / 2 - rotate ); + } + + outline->points[n].x = v_cur.x + strength + in.x; + outline->points[n].y = v_cur.y + strength + in.y; + + v_prev = v_cur; + v_cur = v_next; + } + + first = last + 1; + } + + return FT_Err_Ok; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Orientation ) + FT_Outline_Get_Orientation( FT_Outline* outline ) + { + FT_Pos xmin = 32768L; + FT_Pos xmin_ymin = 32768L; + FT_Pos xmin_ymax = -32768L; + FT_Vector* xmin_first = NULL; + FT_Vector* xmin_last = NULL; + + short* contour; + + FT_Vector* first; + FT_Vector* last; + FT_Vector* prev; + FT_Vector* point; + + int i; + FT_Pos ray_y[3]; + FT_Orientation result[3] = + { FT_ORIENTATION_NONE, FT_ORIENTATION_NONE, FT_ORIENTATION_NONE }; + + + if ( !outline || outline->n_points <= 0 ) + return FT_ORIENTATION_TRUETYPE; + + /* We use the nonzero winding rule to find the orientation. */ + /* Since glyph outlines behave much more `regular' than arbitrary */ + /* cubic or quadratic curves, this test deals with the polygon */ + /* only which is spanned up by the control points. */ + + first = outline->points; + for ( contour = outline->contours; + contour < outline->contours + outline->n_contours; + contour++, first = last + 1 ) + { + FT_Pos contour_xmin = 32768L; + FT_Pos contour_xmax = -32768L; + FT_Pos contour_ymin = 32768L; + FT_Pos contour_ymax = -32768L; + + + last = outline->points + *contour; + + /* skip degenerate contours */ + if ( last < first + 2 ) + continue; + + for ( point = first; point <= last; ++point ) + { + if ( point->x < contour_xmin ) + contour_xmin = point->x; + + if ( point->x > contour_xmax ) + contour_xmax = point->x; + + if ( point->y < contour_ymin ) + contour_ymin = point->y; + + if ( point->y > contour_ymax ) + contour_ymax = point->y; + } + + if ( contour_xmin < xmin && + contour_xmin != contour_xmax && + contour_ymin != contour_ymax ) + { + xmin = contour_xmin; + xmin_ymin = contour_ymin; + xmin_ymax = contour_ymax; + xmin_first = first; + xmin_last = last; + } + } + + if ( xmin == 32768L ) + return FT_ORIENTATION_TRUETYPE; + + ray_y[0] = ( xmin_ymin * 3 + xmin_ymax ) >> 2; + ray_y[1] = ( xmin_ymin + xmin_ymax ) >> 1; + ray_y[2] = ( xmin_ymin + xmin_ymax * 3 ) >> 2; + + for ( i = 0; i < 3; i++ ) + { + FT_Pos left_x; + FT_Pos right_x; + FT_Vector* left1; + FT_Vector* left2; + FT_Vector* right1; + FT_Vector* right2; + + + RedoRay: + left_x = 32768L; + right_x = -32768L; + + left1 = left2 = right1 = right2 = NULL; + + prev = xmin_last; + for ( point = xmin_first; point <= xmin_last; prev = point, ++point ) + { + FT_Pos tmp_x; + + + if ( point->y == ray_y[i] || prev->y == ray_y[i] ) + { + ray_y[i]++; + goto RedoRay; + } + + if ( ( point->y < ray_y[i] && prev->y < ray_y[i] ) || + ( point->y > ray_y[i] && prev->y > ray_y[i] ) ) + continue; + + tmp_x = FT_MulDiv( point->x - prev->x, + ray_y[i] - prev->y, + point->y - prev->y ) + prev->x; + + if ( tmp_x < left_x ) + { + left_x = tmp_x; + left1 = prev; + left2 = point; + } + + if ( tmp_x > right_x ) + { + right_x = tmp_x; + right1 = prev; + right2 = point; + } + } + + if ( left1 && right1 ) + { + if ( left1->y < left2->y && right1->y > right2->y ) + result[i] = FT_ORIENTATION_TRUETYPE; + else if ( left1->y > left2->y && right1->y < right2->y ) + result[i] = FT_ORIENTATION_POSTSCRIPT; + else + result[i] = FT_ORIENTATION_NONE; + } + } + + if ( result[0] != FT_ORIENTATION_NONE && + ( result[0] == result[1] || result[0] == result[2] ) ) + return result[0]; + + if ( result[1] != FT_ORIENTATION_NONE && result[1] == result[2] ) + return result[1]; + + return FT_ORIENTATION_TRUETYPE; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftpatent.c b/uppsrc/plugin/FT_fontsys/src/base/ftpatent.c new file mode 100644 index 000000000..f19fb1a4e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftpatent.c @@ -0,0 +1,286 @@ +/***************************************************************************/ +/* */ +/* ftpatent.c */ +/* */ +/* FreeType API for checking patented TrueType bytecode instructions */ +/* (body). */ +/* */ +/* Copyright 2007, 2008, 2010 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TRUETYPE_GLYF_H + + + static FT_Bool + _tt_check_patents_in_range( FT_Stream stream, + FT_ULong size ) + { + FT_Bool result = FALSE; + FT_Error error; + FT_Bytes p, end; + + + if ( FT_FRAME_ENTER( size ) ) + return 0; + + p = stream->cursor; + end = p + size; + + while ( p < end ) + { + switch (p[0]) + { + case 0x06: /* SPvTL // */ + case 0x07: /* SPvTL + */ + case 0x08: /* SFvTL // */ + case 0x09: /* SFvTL + */ + case 0x0A: /* SPvFS */ + case 0x0B: /* SFvFS */ + result = TRUE; + goto Exit; + + case 0x40: + if ( p + 1 >= end ) + goto Exit; + + p += p[1] + 2; + break; + + case 0x41: + if ( p + 1 >= end ) + goto Exit; + + p += p[1] * 2 + 2; + break; + + case 0x71: /* DELTAP2 */ + case 0x72: /* DELTAP3 */ + case 0x73: /* DELTAC0 */ + case 0x74: /* DELTAC1 */ + case 0x75: /* DELTAC2 */ + result = TRUE; + goto Exit; + + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + p += ( p[0] - 0xB0 ) + 2; + break; + + case 0xB8: + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + p += ( p[0] - 0xB8 ) * 2 + 3; + break; + + default: + p += 1; + break; + } + } + + Exit: + FT_UNUSED( error ); + FT_FRAME_EXIT(); + return result; + } + + + static FT_Bool + _tt_check_patents_in_table( FT_Face face, + FT_ULong tag ) + { + FT_Stream stream = face->stream; + FT_Error error = FT_Err_Ok; + FT_Service_SFNT_Table service; + FT_Bool result = FALSE; + + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + + if ( service ) + { + FT_UInt i = 0; + FT_ULong tag_i = 0, offset_i = 0, length_i = 0; + + + for ( i = 0; !error && tag_i != tag ; i++ ) + error = service->table_info( face, i, + &tag_i, &offset_i, &length_i ); + + if ( error || + FT_STREAM_SEEK( offset_i ) ) + goto Exit; + + result = _tt_check_patents_in_range( stream, length_i ); + } + + Exit: + return result; + } + + + static FT_Bool + _tt_face_check_patents( FT_Face face ) + { + FT_Stream stream = face->stream; + FT_UInt gindex; + FT_Error error; + FT_Bool result; + + FT_Service_TTGlyf service; + + + result = _tt_check_patents_in_table( face, TTAG_fpgm ); + if ( result ) + goto Exit; + + result = _tt_check_patents_in_table( face, TTAG_prep ); + if ( result ) + goto Exit; + + FT_FACE_FIND_SERVICE( face, service, TT_GLYF ); + if ( service == NULL ) + goto Exit; + + for ( gindex = 0; gindex < (FT_UInt)face->num_glyphs; gindex++ ) + { + FT_ULong offset, num_ins, size; + FT_Int num_contours; + + + offset = service->get_location( face, gindex, &size ); + if ( size == 0 ) + continue; + + if ( FT_STREAM_SEEK( offset ) || + FT_READ_SHORT( num_contours ) ) + continue; + + if ( num_contours >= 0 ) /* simple glyph */ + { + if ( FT_STREAM_SKIP( 8 + num_contours * 2 ) ) + continue; + } + else /* compound glyph */ + { + FT_Bool has_instr = 0; + + + if ( FT_STREAM_SKIP( 8 ) ) + continue; + + /* now read each component */ + for (;;) + { + FT_UInt flags, toskip; + + + if( FT_READ_USHORT( flags ) ) + break; + + toskip = 2 + 1 + 1; + + if ( ( flags & ( 1 << 0 ) ) != 0 ) /* ARGS_ARE_WORDS */ + toskip += 2; + + if ( ( flags & ( 1 << 3 ) ) != 0 ) /* WE_HAVE_A_SCALE */ + toskip += 2; + else if ( ( flags & ( 1 << 6 ) ) != 0 ) /* WE_HAVE_X_Y_SCALE */ + toskip += 4; + else if ( ( flags & ( 1 << 7 ) ) != 0 ) /* WE_HAVE_A_2x2 */ + toskip += 8; + + if ( ( flags & ( 1 << 8 ) ) != 0 ) /* WE_HAVE_INSTRUCTIONS */ + has_instr = 1; + + if ( FT_STREAM_SKIP( toskip ) ) + goto NextGlyph; + + if ( ( flags & ( 1 << 5 ) ) == 0 ) /* MORE_COMPONENTS */ + break; + } + + if ( !has_instr ) + goto NextGlyph; + } + + if ( FT_READ_USHORT( num_ins ) ) + continue; + + result = _tt_check_patents_in_range( stream, num_ins ); + if ( result ) + goto Exit; + + NextGlyph: + ; + } + + Exit: + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Face_CheckTrueTypePatents( FT_Face face ) + { + FT_Bool result = FALSE; + + + if ( face && FT_IS_SFNT( face ) ) + result = _tt_face_check_patents( face ); + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Face_SetUnpatentedHinting( FT_Face face, + FT_Bool value ) + { + FT_Bool result = FALSE; + + +#if defined( TT_CONFIG_OPTION_UNPATENTED_HINTING ) && \ + !defined( TT_CONFIG_OPTION_BYTECODE_INTERPRETER ) + if ( face && FT_IS_SFNT( face ) ) + { + result = !face->internal->ignore_unpatented_hinter; + face->internal->ignore_unpatented_hinter = !value; + } +#else + FT_UNUSED( face ); + FT_UNUSED( value ); +#endif + + return result; + } + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftpfr.c b/uppsrc/plugin/FT_fontsys/src/base/ftpfr.c new file mode 100644 index 000000000..cb2b4ae0f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftpfr.c @@ -0,0 +1,144 @@ +/***************************************************************************/ +/* */ +/* ftpfr.c */ +/* */ +/* FreeType API for accessing PFR-specific data (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_PFR_H + + + /* check the format */ + static FT_Service_PfrMetrics + ft_pfr_check( FT_Face face ) + { + FT_Service_PfrMetrics service = NULL; + + + if ( face ) + FT_FACE_LOOKUP_SERVICE( face, service, PFR_METRICS ); + + return service; + } + + + /* documentation is in ftpfr.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Metrics( FT_Face face, + FT_UInt *aoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ) + { + FT_Error error = FT_Err_Ok; + FT_Service_PfrMetrics service; + + + if ( !face ) + return FT_Err_Invalid_Argument; + + service = ft_pfr_check( face ); + if ( service ) + { + error = service->get_metrics( face, + aoutline_resolution, + ametrics_resolution, + ametrics_x_scale, + ametrics_y_scale ); + } + else + { + FT_Fixed x_scale, y_scale; + + + /* this is not a PFR font */ + if ( aoutline_resolution ) + *aoutline_resolution = face->units_per_EM; + + if ( ametrics_resolution ) + *ametrics_resolution = face->units_per_EM; + + x_scale = y_scale = 0x10000L; + if ( face->size ) + { + x_scale = face->size->metrics.x_scale; + y_scale = face->size->metrics.y_scale; + } + + if ( ametrics_x_scale ) + *ametrics_x_scale = x_scale; + + if ( ametrics_y_scale ) + *ametrics_y_scale = y_scale; + + error = FT_Err_Unknown_File_Format; + } + + return error; + } + + + /* documentation is in ftpfr.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Kerning( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ) + { + FT_Error error; + FT_Service_PfrMetrics service; + + + if ( !face ) + return FT_Err_Invalid_Argument; + + service = ft_pfr_check( face ); + if ( service ) + error = service->get_kerning( face, left, right, avector ); + else + error = FT_Get_Kerning( face, left, right, + FT_KERNING_UNSCALED, avector ); + + return error; + } + + + /* documentation is in ftpfr.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Advance( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ) + { + FT_Error error; + FT_Service_PfrMetrics service; + + + service = ft_pfr_check( face ); + if ( service ) + { + error = service->get_advance( face, gindex, aadvance ); + } + else + /* XXX: TODO: PROVIDE ADVANCE-LOADING METHOD TO ALL FONT DRIVERS */ + error = FT_Err_Invalid_Argument; + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftpic.c b/uppsrc/plugin/FT_fontsys/src/base/ftpic.c new file mode 100644 index 000000000..9de3b4976 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftpic.c @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* ftpic.c */ +/* */ +/* The FreeType position independent code services (body). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "basepic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* documentation is in ftpic.h */ + + FT_BASE_DEF( FT_Error ) + ft_pic_container_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = FT_Err_Ok; + + FT_MEM_SET( pic_container, 0, sizeof(*pic_container) ); + + error = ft_base_pic_init( library ); + if(error) + return error; + + return FT_Err_Ok; + } + + + /* Destroy the contents of the container. */ + FT_BASE_DEF( void ) + ft_pic_container_destroy( FT_Library library ) + { + ft_base_pic_free( library ); + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftrfork.c b/uppsrc/plugin/FT_fontsys/src/base/ftrfork.c new file mode 100644 index 000000000..28d786fac --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftrfork.c @@ -0,0 +1,871 @@ +/***************************************************************************/ +/* */ +/* ftrfork.c */ +/* */ +/* Embedded resource forks accessor (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are */ +/* derived from ftobjs.c. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* Development of the code in this file is support of */ +/* Information-technology Promotion Agency, Japan. */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_RFORK_H + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** Resource fork directory access ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + FT_BASE_DEF( FT_Error ) + FT_Raccess_Get_HeaderInfo( FT_Library library, + FT_Stream stream, + FT_Long rfork_offset, + FT_Long *map_offset, + FT_Long *rdata_pos ) + { + FT_Error error; + unsigned char head[16], head2[16]; + FT_Long map_pos, rdata_len; + int allzeros, allmatch, i; + FT_Long type_list; + + FT_UNUSED( library ); + + + error = FT_Stream_Seek( stream, rfork_offset ); + if ( error ) + return error; + + error = FT_Stream_Read( stream, (FT_Byte *)head, 16 ); + if ( error ) + return error; + + *rdata_pos = rfork_offset + ( ( head[0] << 24 ) | + ( head[1] << 16 ) | + ( head[2] << 8 ) | + head[3] ); + map_pos = rfork_offset + ( ( head[4] << 24 ) | + ( head[5] << 16 ) | + ( head[6] << 8 ) | + head[7] ); + rdata_len = ( head[ 8] << 24 ) | + ( head[ 9] << 16 ) | + ( head[10] << 8 ) | + head[11]; + + /* map_len = head[12] .. head[15] */ + + if ( *rdata_pos + rdata_len != map_pos || map_pos == rfork_offset ) + return FT_Err_Unknown_File_Format; + + error = FT_Stream_Seek( stream, map_pos ); + if ( error ) + return error; + + head2[15] = (FT_Byte)( head[15] + 1 ); /* make it be different */ + + error = FT_Stream_Read( stream, (FT_Byte*)head2, 16 ); + if ( error ) + return error; + + allzeros = 1; + allmatch = 1; + for ( i = 0; i < 16; ++i ) + { + if ( head2[i] != 0 ) + allzeros = 0; + if ( head2[i] != head[i] ) + allmatch = 0; + } + if ( !allzeros && !allmatch ) + return FT_Err_Unknown_File_Format; + + /* If we have reached this point then it is probably a mac resource */ + /* file. Now, does it contain any interesting resources? */ + /* Skip handle to next resource map, the file resource number, and */ + /* attributes. */ + (void)FT_STREAM_SKIP( 4 /* skip handle to next resource map */ + + 2 /* skip file resource number */ + + 2 ); /* skip attributes */ + + if ( FT_READ_USHORT( type_list ) ) + return error; + if ( type_list == -1 ) + return FT_Err_Unknown_File_Format; + + error = FT_Stream_Seek( stream, map_pos + type_list ); + if ( error ) + return error; + + *map_offset = map_pos + type_list; + return FT_Err_Ok; + } + + + static int + ft_raccess_sort_ref_by_id( FT_RFork_Ref* a, + FT_RFork_Ref* b ) + { + if ( a->res_id < b->res_id ) + return -1; + else if ( a->res_id > b->res_id ) + return 1; + else + return 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Raccess_Get_DataOffsets( FT_Library library, + FT_Stream stream, + FT_Long map_offset, + FT_Long rdata_pos, + FT_Long tag, + FT_Long **offsets, + FT_Long *count ) + { + FT_Error error; + int i, j, cnt, subcnt; + FT_Long tag_internal, rpos; + FT_Memory memory = library->memory; + FT_Long temp; + FT_Long *offsets_internal = NULL; + FT_RFork_Ref *ref = NULL; + + + error = FT_Stream_Seek( stream, map_offset ); + if ( error ) + return error; + + if ( FT_READ_USHORT( cnt ) ) + return error; + cnt++; + + for ( i = 0; i < cnt; ++i ) + { + if ( FT_READ_LONG( tag_internal ) || + FT_READ_USHORT( subcnt ) || + FT_READ_USHORT( rpos ) ) + return error; + + FT_TRACE2(( "Resource tags: %c%c%c%c\n", + (char)( 0xff & ( tag_internal >> 24 ) ), + (char)( 0xff & ( tag_internal >> 16 ) ), + (char)( 0xff & ( tag_internal >> 8 ) ), + (char)( 0xff & ( tag_internal >> 0 ) ) )); + + if ( tag_internal == tag ) + { + *count = subcnt + 1; + rpos += map_offset; + + error = FT_Stream_Seek( stream, rpos ); + if ( error ) + return error; + + if ( FT_NEW_ARRAY( ref, *count ) ) + return error; + + for ( j = 0; j < *count; ++j ) + { + if ( FT_READ_USHORT( ref[j].res_id ) ) + goto Exit; + if ( FT_STREAM_SKIP( 2 ) ) /* resource name */ + goto Exit; + if ( FT_READ_LONG( temp ) ) + goto Exit; + if ( FT_STREAM_SKIP( 4 ) ) /* mbz */ + goto Exit; + + ref[j].offset = temp & 0xFFFFFFL; + } + + ft_qsort( ref, *count, sizeof ( FT_RFork_Ref ), + ( int(*)(const void*, const void*) ) + ft_raccess_sort_ref_by_id ); + + if ( FT_NEW_ARRAY( offsets_internal, *count ) ) + goto Exit; + + /* XXX: duplicated reference ID, + * gap between reference IDs are acceptable? + * further investigation on Apple implementation is needed. + */ + for ( j = 0; j < *count; ++j ) + offsets_internal[j] = rdata_pos + ref[j].offset; + + *offsets = offsets_internal; + error = FT_Err_Ok; + + Exit: + FT_FREE( ref ); + return error; + } + } + + return FT_Err_Cannot_Open_Resource; + } + + +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** Guessing functions ****/ + /**** ****/ + /**** When you add a new guessing function, ****/ + /**** update FT_RACCESS_N_RULES in ftrfork.h. ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + typedef FT_Error + (*raccess_guess_func)( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + + static FT_Error + raccess_guess_apple_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_apple_single( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_ufs_export( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_newvfs( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_hfsplus( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_vfat( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_cap( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_netatalk( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + + /*************************************************************************/ + /**** ****/ + /**** Helper functions ****/ + /**** ****/ + /*************************************************************************/ + + static FT_Error + raccess_guess_apple_generic( FT_Library library, + FT_Stream stream, + char *base_file_name, + FT_Int32 magic, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_double_from_file_name( FT_Library library, + char * file_name, + FT_Long *result_offset ); + + static char * + raccess_make_file_name( FT_Memory memory, + const char *original_name, + const char *insertion ); + + + typedef enum FT_RFork_Rule_ { + FT_RFork_Rule_invalid = -2, + FT_RFork_Rule_uknown, /* -1 */ + FT_RFork_Rule_apple_double, + FT_RFork_Rule_apple_single, + FT_RFork_Rule_darwin_ufs_export, + FT_RFork_Rule_darwin_newvfs, + FT_RFork_Rule_darwin_hfsplus, + FT_RFork_Rule_vfat, + FT_RFork_Rule_linux_cap, + FT_RFork_Rule_linux_double, + FT_RFork_Rule_linux_netatalk + } FT_RFork_Rule; + + /* For fast translation between rule index and rule type, + * the macros FT_RFORK_xxx should be kept consistent with + * the raccess_guess_funcs table + */ + typedef struct raccess_guess_rec_ { + raccess_guess_func func; + FT_RFork_Rule type; + } raccess_guess_rec; + + static raccess_guess_rec raccess_guess_table[FT_RACCESS_N_RULES] = + { + { raccess_guess_apple_double, FT_RFork_Rule_apple_double, }, + { raccess_guess_apple_single, FT_RFork_Rule_apple_single, }, + { raccess_guess_darwin_ufs_export, FT_RFork_Rule_darwin_ufs_export, }, + { raccess_guess_darwin_newvfs, FT_RFork_Rule_darwin_newvfs, }, + { raccess_guess_darwin_hfsplus, FT_RFork_Rule_darwin_hfsplus, }, + { raccess_guess_vfat, FT_RFork_Rule_vfat, }, + { raccess_guess_linux_cap, FT_RFork_Rule_linux_cap, }, + { raccess_guess_linux_double, FT_RFork_Rule_linux_double, }, + { raccess_guess_linux_netatalk, FT_RFork_Rule_linux_netatalk, }, + }; + + FT_BASE_DEF( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char* base_name, + char **new_names, + FT_Long *offsets, + FT_Error *errors ) + { + FT_Long i; + + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + new_names[i] = NULL; + if ( NULL != stream ) + errors[i] = FT_Stream_Seek( stream, 0 ); + else + errors[i] = FT_Err_Ok; + + if ( errors[i] ) + continue ; + + errors[i] = (raccess_guess_table[i].func)( library, + stream, base_name, + &(new_names[i]), + &(offsets[i]) ); + } + + return; + } + + + static FT_RFork_Rule + raccess_get_rule_type_from_rule_index( FT_UInt rule_index ) + { + if ( rule_index >= FT_RACCESS_N_RULES ) + return FT_RFork_Rule_invalid; + + return raccess_guess_table[rule_index].type; + } + + + FT_LOCAL_DEF( FT_Bool ) + raccess_rule_by_darwin_vfs( FT_UInt rule_index ) + { + switch( raccess_get_rule_type_from_rule_index( rule_index ) ) + { + case FT_RFork_Rule_darwin_newvfs: + case FT_RFork_Rule_darwin_hfsplus: + return TRUE; + + default: + return FALSE; + } + } + + + static FT_Error + raccess_guess_apple_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + FT_Int32 magic = ( 0x00 << 24 ) | + ( 0x05 << 16 ) | + ( 0x16 << 8 ) | + 0x07; + + + *result_file_name = NULL; + if ( NULL == stream ) + return FT_Err_Cannot_Open_Stream; + + return raccess_guess_apple_generic( library, stream, base_file_name, + magic, result_offset ); + } + + + static FT_Error + raccess_guess_apple_single( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + FT_Int32 magic = ( 0x00 << 24 ) | + ( 0x05 << 16 ) | + ( 0x16 << 8 ) | + 0x00; + + + *result_file_name = NULL; + if ( NULL == stream ) + return FT_Err_Cannot_Open_Stream; + + return raccess_guess_apple_generic( library, stream, base_file_name, + magic, result_offset ); + } + + + static FT_Error + raccess_guess_darwin_ufs_export( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + newpath = raccess_make_file_name( memory, base_file_name, "._" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_darwin_hfsplus( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + /* + Only meaningful on systems with hfs+ drivers (or Macs). + */ + FT_Error error; + char* newpath = NULL; + FT_Memory memory; + FT_Long base_file_len = ft_strlen( base_file_name ); + + FT_UNUSED( stream ); + + + memory = library->memory; + + if ( base_file_len + 6 > FT_INT_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_ALLOC( newpath, base_file_len + 6 ) ) + return error; + + FT_MEM_COPY( newpath, base_file_name, base_file_len ); + FT_MEM_COPY( newpath + base_file_len, "/rsrc", 6 ); + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_darwin_newvfs( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + /* + Only meaningful on systems with Mac OS X (> 10.1). + */ + FT_Error error; + char* newpath = NULL; + FT_Memory memory; + FT_Long base_file_len = ft_strlen( base_file_name ); + + FT_UNUSED( stream ); + + + memory = library->memory; + + if ( base_file_len + 18 > FT_INT_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_ALLOC( newpath, base_file_len + 18 ) ) + return error; + + FT_MEM_COPY( newpath, base_file_name, base_file_len ); + FT_MEM_COPY( newpath + base_file_len, "/..namedfork/rsrc", 18 ); + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_vfat( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, + "resource.frk/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_linux_cap( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, ".resource/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_linux_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, "%" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_linux_netatalk( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, + ".AppleDouble/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_apple_generic( FT_Library library, + FT_Stream stream, + char *base_file_name, + FT_Int32 magic, + FT_Long *result_offset ) + { + FT_Int32 magic_from_stream; + FT_Error error; + FT_Int32 version_number = 0; + FT_UShort n_of_entries; + + int i; + FT_UInt32 entry_id, entry_offset, entry_length = 0; + + const FT_UInt32 resource_fork_entry_id = 0x2; + + FT_UNUSED( library ); + FT_UNUSED( base_file_name ); + FT_UNUSED( version_number ); + FT_UNUSED( entry_length ); + + + if ( FT_READ_LONG( magic_from_stream ) ) + return error; + if ( magic_from_stream != magic ) + return FT_Err_Unknown_File_Format; + + if ( FT_READ_LONG( version_number ) ) + return error; + + /* filler */ + error = FT_Stream_Skip( stream, 16 ); + if ( error ) + return error; + + if ( FT_READ_USHORT( n_of_entries ) ) + return error; + if ( n_of_entries == 0 ) + return FT_Err_Unknown_File_Format; + + for ( i = 0; i < n_of_entries; i++ ) + { + if ( FT_READ_LONG( entry_id ) ) + return error; + if ( entry_id == resource_fork_entry_id ) + { + if ( FT_READ_LONG( entry_offset ) || + FT_READ_LONG( entry_length ) ) + continue; + *result_offset = entry_offset; + + return FT_Err_Ok; + } + else + { + error = FT_Stream_Skip( stream, 4 + 4 ); /* offset + length */ + if ( error ) + return error; + } + } + + return FT_Err_Unknown_File_Format; + } + + + static FT_Error + raccess_guess_linux_double_from_file_name( FT_Library library, + char *file_name, + FT_Long *result_offset ) + { + FT_Open_Args args2; + FT_Stream stream2; + char * nouse = NULL; + FT_Error error; + + + args2.flags = FT_OPEN_PATHNAME; + args2.pathname = file_name; + error = FT_Stream_New( library, &args2, &stream2 ); + if ( error ) + return error; + + error = raccess_guess_apple_double( library, stream2, file_name, + &nouse, result_offset ); + + FT_Stream_Free( stream2, 0 ); + + return error; + } + + + static char* + raccess_make_file_name( FT_Memory memory, + const char *original_name, + const char *insertion ) + { + char* new_name = NULL; + const char* tmp; + const char* slash; + size_t new_length; + FT_Error error = FT_Err_Ok; + + FT_UNUSED( error ); + + + new_length = ft_strlen( original_name ) + ft_strlen( insertion ); + if ( FT_ALLOC( new_name, new_length + 1 ) ) + return NULL; + + tmp = ft_strrchr( original_name, '/' ); + if ( tmp ) + { + ft_strncpy( new_name, original_name, tmp - original_name + 1 ); + new_name[tmp - original_name + 1] = '\0'; + slash = tmp + 1; + } + else + { + slash = original_name; + new_name[0] = '\0'; + } + + ft_strcat( new_name, insertion ); + ft_strcat( new_name, slash ); + + return new_name; + } + + +#else /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + + /*************************************************************************/ + /* Dummy function; just sets errors */ + /*************************************************************************/ + + FT_BASE_DEF( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char *base_name, + char **new_names, + FT_Long *offsets, + FT_Error *errors ) + { + int i; + + FT_UNUSED( library ); + FT_UNUSED( stream ); + FT_UNUSED( base_name ); + + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + new_names[i] = NULL; + offsets[i] = 0; + errors[i] = FT_Err_Unimplemented_Feature; + } + } + + +#endif /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftsnames.c b/uppsrc/plugin/FT_fontsys/src/base/ftsnames.c new file mode 100644 index 000000000..7c3efe35a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftsnames.c @@ -0,0 +1,94 @@ +/***************************************************************************/ +/* */ +/* ftsnames.c */ +/* */ +/* Simple interface to access SFNT name tables (which are used */ +/* to hold font names, copyright info, notices, etc.) (body). */ +/* */ +/* This is _not_ used to retrieve glyph names! */ +/* */ +/* Copyright 1996-2001, 2002, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_SFNT_NAMES_H +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_INTERNAL_STREAM_H + + +#ifdef TT_CONFIG_OPTION_SFNT_NAMES + + + /* documentation is in ftsnames.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Sfnt_Name_Count( FT_Face face ) + { + return ( face && FT_IS_SFNT( face ) ) ? ((TT_Face)face)->num_names : 0; + } + + + /* documentation is in ftsnames.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Sfnt_Name( FT_Face face, + FT_UInt idx, + FT_SfntName *aname ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( aname && face && FT_IS_SFNT( face ) ) + { + TT_Face ttface = (TT_Face)face; + + + if ( idx < (FT_UInt)ttface->num_names ) + { + TT_NameEntryRec* entry = ttface->name_table.names + idx; + + + /* load name on demand */ + if ( entry->stringLength > 0 && entry->string == NULL ) + { + FT_Memory memory = face->memory; + FT_Stream stream = face->stream; + + + if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) || + FT_STREAM_SEEK( entry->stringOffset ) || + FT_STREAM_READ( entry->string, entry->stringLength ) ) + { + FT_FREE( entry->string ); + entry->stringLength = 0; + } + } + + aname->platform_id = entry->platformID; + aname->encoding_id = entry->encodingID; + aname->language_id = entry->languageID; + aname->name_id = entry->nameID; + aname->string = (FT_Byte*)entry->string; + aname->string_len = entry->stringLength; + + error = FT_Err_Ok; + } + } + + return error; + } + + +#endif /* TT_CONFIG_OPTION_SFNT_NAMES */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftstream.c b/uppsrc/plugin/FT_fontsys/src/base/ftstream.c new file mode 100644 index 000000000..291b75c5b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftstream.c @@ -0,0 +1,864 @@ +/***************************************************************************/ +/* */ +/* ftstream.c */ +/* */ +/* I/O stream support (body). */ +/* */ +/* Copyright 2000-2002, 2004-2006, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_stream + + + FT_BASE_DEF( void ) + FT_Stream_OpenMemory( FT_Stream stream, + const FT_Byte* base, + FT_ULong size ) + { + stream->base = (FT_Byte*) base; + stream->size = size; + stream->pos = 0; + stream->cursor = 0; + stream->read = 0; + stream->close = 0; + } + + + FT_BASE_DEF( void ) + FT_Stream_Close( FT_Stream stream ) + { + if ( stream && stream->close ) + stream->close( stream ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Seek( FT_Stream stream, + FT_ULong pos ) + { + FT_Error error = FT_Err_Ok; + + + if ( stream->read ) + { + if ( stream->read( stream, pos, 0, 0 ) ) + { + FT_ERROR(( "FT_Stream_Seek:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + } + } + /* note that seeking to the first position after the file is valid */ + else if ( pos > stream->size ) + { + FT_ERROR(( "FT_Stream_Seek:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + } + + if ( !error ) + stream->pos = pos; + + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Skip( FT_Stream stream, + FT_Long distance ) + { + if ( distance < 0 ) + return FT_Err_Invalid_Stream_Operation; + + return FT_Stream_Seek( stream, (FT_ULong)( stream->pos + distance ) ); + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_Pos( FT_Stream stream ) + { + return stream->pos; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Read( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_ReadAt( stream, stream->pos, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ReadAt( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_Error error = FT_Err_Ok; + FT_ULong read_bytes; + + + if ( pos >= stream->size ) + { + FT_ERROR(( "FT_Stream_ReadAt:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + return FT_Err_Invalid_Stream_Operation; + } + + if ( stream->read ) + read_bytes = stream->read( stream, pos, buffer, count ); + else + { + read_bytes = stream->size - pos; + if ( read_bytes > count ) + read_bytes = count; + + FT_MEM_COPY( buffer, stream->base + pos, read_bytes ); + } + + stream->pos = pos + read_bytes; + + if ( read_bytes < count ) + { + FT_ERROR(( "FT_Stream_ReadAt:" + " invalid read; expected %lu bytes, got %lu\n", + count, read_bytes )); + + error = FT_Err_Invalid_Stream_Operation; + } + + return error; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_TryRead( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong read_bytes = 0; + + + if ( stream->pos >= stream->size ) + goto Exit; + + if ( stream->read ) + read_bytes = stream->read( stream, stream->pos, buffer, count ); + else + { + read_bytes = stream->size - stream->pos; + if ( read_bytes > count ) + read_bytes = count; + + FT_MEM_COPY( buffer, stream->base + stream->pos, read_bytes ); + } + + stream->pos += read_bytes; + + Exit: + return read_bytes; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ExtractFrame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ) + { + FT_Error error; + + + error = FT_Stream_EnterFrame( stream, count ); + if ( !error ) + { + *pbytes = (FT_Byte*)stream->cursor; + + /* equivalent to FT_Stream_ExitFrame(), with no memory block release */ + stream->cursor = 0; + stream->limit = 0; + } + + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_ReleaseFrame( FT_Stream stream, + FT_Byte** pbytes ) + { + if ( stream && stream->read ) + { + FT_Memory memory = stream->memory; + +#ifdef FT_DEBUG_MEMORY + ft_mem_free( memory, *pbytes ); + *pbytes = NULL; +#else + FT_FREE( *pbytes ); +#endif + } + *pbytes = 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_EnterFrame( FT_Stream stream, + FT_ULong count ) + { + FT_Error error = FT_Err_Ok; + FT_ULong read_bytes; + + + /* check for nested frame access */ + FT_ASSERT( stream && stream->cursor == 0 ); + + if ( stream->read ) + { + /* allocate the frame in memory */ + FT_Memory memory = stream->memory; + + + /* simple sanity check */ + if ( count > stream->size ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" + " frame size (%lu) larger than stream size (%lu)\n", + count, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + +#ifdef FT_DEBUG_MEMORY + /* assume _ft_debug_file and _ft_debug_lineno are already set */ + stream->base = (unsigned char*)ft_mem_qalloc( memory, count, &error ); + if ( error ) + goto Exit; +#else + if ( FT_QALLOC( stream->base, count ) ) + goto Exit; +#endif + /* read it */ + read_bytes = stream->read( stream, stream->pos, + stream->base, count ); + if ( read_bytes < count ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" + " invalid read; expected %lu bytes, got %lu\n", + count, read_bytes )); + + FT_FREE( stream->base ); + error = FT_Err_Invalid_Stream_Operation; + } + stream->cursor = stream->base; + stream->limit = stream->cursor + count; + stream->pos += read_bytes; + } + else + { + /* check current and new position */ + if ( stream->pos >= stream->size || + stream->size - stream->pos < count ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" + " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n", + stream->pos, count, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + + /* set cursor */ + stream->cursor = stream->base + stream->pos; + stream->limit = stream->cursor + count; + stream->pos += count; + } + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_ExitFrame( FT_Stream stream ) + { + /* IMPORTANT: The assertion stream->cursor != 0 was removed, given */ + /* that it is possible to access a frame of length 0 in */ + /* some weird fonts (usually, when accessing an array of */ + /* 0 records, like in some strange kern tables). */ + /* */ + /* In this case, the loader code handles the 0-length table */ + /* gracefully; however, stream.cursor is really set to 0 by the */ + /* FT_Stream_EnterFrame() call, and this is not an error. */ + /* */ + FT_ASSERT( stream ); + + if ( stream->read ) + { + FT_Memory memory = stream->memory; + +#ifdef FT_DEBUG_MEMORY + ft_mem_free( memory, stream->base ); + stream->base = NULL; +#else + FT_FREE( stream->base ); +#endif + } + stream->cursor = 0; + stream->limit = 0; + } + + + FT_BASE_DEF( FT_Char ) + FT_Stream_GetChar( FT_Stream stream ) + { + FT_Char result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + if ( stream->cursor < stream->limit ) + result = *stream->cursor++; + + return result; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_GetUShort( FT_Stream stream ) + { + FT_Byte* p; + FT_Short result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 1 < stream->limit ) + result = FT_NEXT_USHORT( p ); + stream->cursor = p; + + return result; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_GetUShortLE( FT_Stream stream ) + { + FT_Byte* p; + FT_Short result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 1 < stream->limit ) + result = FT_NEXT_USHORT_LE( p ); + stream->cursor = p; + + return result; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_GetUOffset( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 2 < stream->limit ) + result = FT_NEXT_UOFF3( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_GetULong( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 3 < stream->limit ) + result = FT_NEXT_ULONG( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_GetULongLE( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 3 < stream->limit ) + result = FT_NEXT_ULONG_LE( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_Char ) + FT_Stream_ReadChar( FT_Stream stream, + FT_Error* error ) + { + FT_Byte result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, &result, 1L ) != 1L ) + goto Fail; + } + else + { + if ( stream->pos < stream->size ) + result = stream->base[stream->pos]; + else + goto Fail; + } + stream->pos++; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadChar:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_ReadUShort( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[2]; + FT_Byte* p = 0; + FT_Short result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 1 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 2L ) != 2L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_USHORT( p ); + } + else + goto Fail; + + stream->pos += 2; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadUShort:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_ReadUShortLE( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[2]; + FT_Byte* p = 0; + FT_Short result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 1 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 2L ) != 2L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_USHORT_LE( p ); + } + else + goto Fail; + + stream->pos += 2; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadUShortLE:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_ReadUOffset( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[3]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 2 < stream->size ) + { + if ( stream->read ) + { + if (stream->read( stream, stream->pos, reads, 3L ) != 3L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_UOFF3( p ); + } + else + goto Fail; + + stream->pos += 3; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadUOffset:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_ReadULong( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[4]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 3 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 4L ) != 4L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_ULONG( p ); + } + else + goto Fail; + + stream->pos += 4; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadULong:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_ReadULongLE( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[4]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 3 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 4L ) != 4L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_ULONG_LE( p ); + } + else + goto Fail; + + stream->pos += 4; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadULongLE:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ReadFields( FT_Stream stream, + const FT_Frame_Field* fields, + void* structure ) + { + FT_Error error; + FT_Bool frame_accessed = 0; + FT_Byte* cursor; + + if ( !fields || !stream ) + return FT_Err_Invalid_Argument; + + cursor = stream->cursor; + + error = FT_Err_Ok; + do + { + FT_ULong value; + FT_Int sign_shift; + FT_Byte* p; + + + switch ( fields->value ) + { + case ft_frame_start: /* access a new frame */ + error = FT_Stream_EnterFrame( stream, fields->offset ); + if ( error ) + goto Exit; + + frame_accessed = 1; + cursor = stream->cursor; + fields++; + continue; /* loop! */ + + case ft_frame_bytes: /* read a byte sequence */ + case ft_frame_skip: /* skip some bytes */ + { + FT_UInt len = fields->size; + + + if ( cursor + len > stream->limit ) + { + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + + if ( fields->value == ft_frame_bytes ) + { + p = (FT_Byte*)structure + fields->offset; + FT_MEM_COPY( p, cursor, len ); + } + cursor += len; + fields++; + continue; + } + + case ft_frame_byte: + case ft_frame_schar: /* read a single byte */ + value = FT_NEXT_BYTE(cursor); + sign_shift = 24; + break; + + case ft_frame_short_be: + case ft_frame_ushort_be: /* read a 2-byte big-endian short */ + value = FT_NEXT_USHORT(cursor); + sign_shift = 16; + break; + + case ft_frame_short_le: + case ft_frame_ushort_le: /* read a 2-byte little-endian short */ + value = FT_NEXT_USHORT_LE(cursor); + sign_shift = 16; + break; + + case ft_frame_long_be: + case ft_frame_ulong_be: /* read a 4-byte big-endian long */ + value = FT_NEXT_ULONG(cursor); + sign_shift = 0; + break; + + case ft_frame_long_le: + case ft_frame_ulong_le: /* read a 4-byte little-endian long */ + value = FT_NEXT_ULONG_LE(cursor); + sign_shift = 0; + break; + + case ft_frame_off3_be: + case ft_frame_uoff3_be: /* read a 3-byte big-endian long */ + value = FT_NEXT_UOFF3(cursor); + sign_shift = 8; + break; + + case ft_frame_off3_le: + case ft_frame_uoff3_le: /* read a 3-byte little-endian long */ + value = FT_NEXT_UOFF3_LE(cursor); + sign_shift = 8; + break; + + default: + /* otherwise, exit the loop */ + stream->cursor = cursor; + goto Exit; + } + + /* now, compute the signed value is necessary */ + if ( fields->value & FT_FRAME_OP_SIGNED ) + value = (FT_ULong)( (FT_Int32)( value << sign_shift ) >> sign_shift ); + + /* finally, store the value in the object */ + + p = (FT_Byte*)structure + fields->offset; + switch ( fields->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)p = (FT_Byte)value; + break; + + case (16 / FT_CHAR_BIT): + *(FT_UShort*)p = (FT_UShort)value; + break; + + case (32 / FT_CHAR_BIT): + *(FT_UInt32*)p = (FT_UInt32)value; + break; + + default: /* for 64-bit systems */ + *(FT_ULong*)p = (FT_ULong)value; + } + + /* go to next field */ + fields++; + } + while ( 1 ); + + Exit: + /* close the frame if it was opened by this read */ + if ( frame_accessed ) + FT_Stream_ExitFrame( stream ); + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftstroke.c b/uppsrc/plugin/FT_fontsys/src/base/ftstroke.c new file mode 100644 index 000000000..b0490ec70 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftstroke.c @@ -0,0 +1,2415 @@ +/***************************************************************************/ +/* */ +/* ftstroke.c */ +/* */ +/* FreeType path stroker (body). */ +/* */ +/* Copyright 2002-2006, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_STROKER_H +#include FT_TRIGONOMETRY_H +#include FT_OUTLINE_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_StrokerBorder ) + FT_Outline_GetInsideBorder( FT_Outline* outline ) + { + FT_Orientation o = FT_Outline_Get_Orientation( outline ); + + + return o == FT_ORIENTATION_TRUETYPE ? FT_STROKER_BORDER_RIGHT + : FT_STROKER_BORDER_LEFT; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_StrokerBorder ) + FT_Outline_GetOutsideBorder( FT_Outline* outline ) + { + FT_Orientation o = FT_Outline_Get_Orientation( outline ); + + + return o == FT_ORIENTATION_TRUETYPE ? FT_STROKER_BORDER_LEFT + : FT_STROKER_BORDER_RIGHT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BEZIER COMPUTATIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define FT_SMALL_CONIC_THRESHOLD ( FT_ANGLE_PI / 6 ) +#define FT_SMALL_CUBIC_THRESHOLD ( FT_ANGLE_PI / 8 ) + +#define FT_EPSILON 2 + +#define FT_IS_SMALL( x ) ( (x) > -FT_EPSILON && (x) < FT_EPSILON ) + + + static FT_Pos + ft_pos_abs( FT_Pos x ) + { + return x >= 0 ? x : -x; + } + + + static void + ft_conic_split( FT_Vector* base ) + { + FT_Pos a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + } + + + static FT_Bool + ft_conic_is_small_enough( FT_Vector* base, + FT_Angle *angle_in, + FT_Angle *angle_out ) + { + FT_Vector d1, d2; + FT_Angle theta; + FT_Int close1, close2; + + + d1.x = base[1].x - base[2].x; + d1.y = base[1].y - base[2].y; + d2.x = base[0].x - base[1].x; + d2.y = base[0].y - base[1].y; + + close1 = FT_IS_SMALL( d1.x ) && FT_IS_SMALL( d1.y ); + close2 = FT_IS_SMALL( d2.x ) && FT_IS_SMALL( d2.y ); + + if ( close1 ) + { + if ( close2 ) + { + /* basically a point; */ + /* do nothing to retain original direction */ + } + else + { + *angle_in = + *angle_out = FT_Atan2( d2.x, d2.y ); + } + } + else /* !close1 */ + { + if ( close2 ) + { + *angle_in = + *angle_out = FT_Atan2( d1.x, d1.y ); + } + else + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_out = FT_Atan2( d2.x, d2.y ); + } + } + + theta = ft_pos_abs( FT_Angle_Diff( *angle_in, *angle_out ) ); + + return FT_BOOL( theta < FT_SMALL_CONIC_THRESHOLD ); + } + + + static void + ft_cubic_split( FT_Vector* base ) + { + FT_Pos a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c ) / 2; + base[5].x = b = ( base[3].x + d ) / 2; + c = ( c + d ) / 2; + base[2].x = a = ( a + c ) / 2; + base[4].x = b = ( b + c ) / 2; + base[3].x = ( a + b ) / 2; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c ) / 2; + base[5].y = b = ( base[3].y + d ) / 2; + c = ( c + d ) / 2; + base[2].y = a = ( a + c ) / 2; + base[4].y = b = ( b + c ) / 2; + base[3].y = ( a + b ) / 2; + } + + + /* Return the average of `angle1' and `angle2'. */ + /* This gives correct result even if `angle1' and `angle2' */ + /* have opposite signs. */ + static FT_Angle + ft_angle_mean( FT_Angle angle1, + FT_Angle angle2 ) + { + return angle1 + FT_Angle_Diff( angle1, angle2 ) / 2; + } + + + static FT_Bool + ft_cubic_is_small_enough( FT_Vector* base, + FT_Angle *angle_in, + FT_Angle *angle_mid, + FT_Angle *angle_out ) + { + FT_Vector d1, d2, d3; + FT_Angle theta1, theta2; + FT_Int close1, close2, close3; + + + d1.x = base[2].x - base[3].x; + d1.y = base[2].y - base[3].y; + d2.x = base[1].x - base[2].x; + d2.y = base[1].y - base[2].y; + d3.x = base[0].x - base[1].x; + d3.y = base[0].y - base[1].y; + + close1 = FT_IS_SMALL( d1.x ) && FT_IS_SMALL( d1.y ); + close2 = FT_IS_SMALL( d2.x ) && FT_IS_SMALL( d2.y ); + close3 = FT_IS_SMALL( d3.x ) && FT_IS_SMALL( d3.y ); + + if ( close1 ) + { + if ( close2 ) + { + if ( close3 ) + { + /* basically a point; */ + /* do nothing to retain original direction */ + } + else /* !close3 */ + { + *angle_in = + *angle_mid = + *angle_out = FT_Atan2( d3.x, d3.y ); + } + } + else /* !close2 */ + { + if ( close3 ) + { + *angle_in = + *angle_mid = + *angle_out = FT_Atan2( d2.x, d2.y ); + } + else /* !close3 */ + { + *angle_in = + *angle_mid = FT_Atan2( d2.x, d2.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + } + } + else /* !close1 */ + { + if ( close2 ) + { + if ( close3 ) + { + *angle_in = + *angle_mid = + *angle_out = FT_Atan2( d1.x, d1.y ); + } + else /* !close3 */ + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + *angle_mid = ft_angle_mean( *angle_in, *angle_out ); + } + } + else /* !close2 */ + { + if ( close3 ) + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_mid = + *angle_out = FT_Atan2( d2.x, d2.y ); + } + else /* !close3 */ + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_mid = FT_Atan2( d2.x, d2.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + } + } + + theta1 = ft_pos_abs( FT_Angle_Diff( *angle_in, *angle_mid ) ); + theta2 = ft_pos_abs( FT_Angle_Diff( *angle_mid, *angle_out ) ); + + return FT_BOOL( theta1 < FT_SMALL_CUBIC_THRESHOLD && + theta2 < FT_SMALL_CUBIC_THRESHOLD ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STROKE BORDERS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef enum FT_StrokeTags_ + { + FT_STROKE_TAG_ON = 1, /* on-curve point */ + FT_STROKE_TAG_CUBIC = 2, /* cubic off-point */ + FT_STROKE_TAG_BEGIN = 4, /* sub-path start */ + FT_STROKE_TAG_END = 8 /* sub-path end */ + + } FT_StrokeTags; + +#define FT_STROKE_TAG_BEGIN_END ( FT_STROKE_TAG_BEGIN | FT_STROKE_TAG_END ) + + typedef struct FT_StrokeBorderRec_ + { + FT_UInt num_points; + FT_UInt max_points; + FT_Vector* points; + FT_Byte* tags; + FT_Bool movable; /* TRUE for ends of lineto borders */ + FT_Int start; /* index of current sub-path start point */ + FT_Memory memory; + FT_Bool valid; + + } FT_StrokeBorderRec, *FT_StrokeBorder; + + + static FT_Error + ft_stroke_border_grow( FT_StrokeBorder border, + FT_UInt new_points ) + { + FT_UInt old_max = border->max_points; + FT_UInt new_max = border->num_points + new_points; + FT_Error error = FT_Err_Ok; + + + if ( new_max > old_max ) + { + FT_UInt cur_max = old_max; + FT_Memory memory = border->memory; + + + while ( cur_max < new_max ) + cur_max += ( cur_max >> 1 ) + 16; + + if ( FT_RENEW_ARRAY( border->points, old_max, cur_max ) || + FT_RENEW_ARRAY( border->tags, old_max, cur_max ) ) + goto Exit; + + border->max_points = cur_max; + } + + Exit: + return error; + } + + + static void + ft_stroke_border_close( FT_StrokeBorder border, + FT_Bool reverse ) + { + FT_UInt start = border->start; + FT_UInt count = border->num_points; + + + FT_ASSERT( border->start >= 0 ); + + /* don't record empty paths! */ + if ( count <= start + 1U ) + border->num_points = start; + else + { + /* copy the last point to the start of this sub-path, since */ + /* it contains the `adjusted' starting coordinates */ + border->num_points = --count; + border->points[start] = border->points[count]; + + if ( reverse ) + { + /* reverse the points */ + { + FT_Vector* vec1 = border->points + start + 1; + FT_Vector* vec2 = border->points + count - 1; + + + for ( ; vec1 < vec2; vec1++, vec2-- ) + { + FT_Vector tmp; + + + tmp = *vec1; + *vec1 = *vec2; + *vec2 = tmp; + } + } + + /* then the tags */ + { + FT_Byte* tag1 = border->tags + start + 1; + FT_Byte* tag2 = border->tags + count - 1; + + + for ( ; tag1 < tag2; tag1++, tag2-- ) + { + FT_Byte tmp; + + + tmp = *tag1; + *tag1 = *tag2; + *tag2 = tmp; + } + } + } + + border->tags[start ] |= FT_STROKE_TAG_BEGIN; + border->tags[count - 1] |= FT_STROKE_TAG_END; + } + + border->start = -1; + border->movable = FALSE; + } + + + static FT_Error + ft_stroke_border_lineto( FT_StrokeBorder border, + FT_Vector* to, + FT_Bool movable ) + { + FT_Error error = FT_Err_Ok; + + + FT_ASSERT( border->start >= 0 ); + + if ( border->movable ) + { + /* move last point */ + border->points[border->num_points - 1] = *to; + } + else + { + /* don't add zero-length lineto */ + if ( border->num_points > 0 && + FT_IS_SMALL( border->points[border->num_points - 1].x - to->x ) && + FT_IS_SMALL( border->points[border->num_points - 1].y - to->y ) ) + return error; + + /* add one point */ + error = ft_stroke_border_grow( border, 1 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *to; + tag[0] = FT_STROKE_TAG_ON; + + border->num_points += 1; + } + } + border->movable = movable; + return error; + } + + + static FT_Error + ft_stroke_border_conicto( FT_StrokeBorder border, + FT_Vector* control, + FT_Vector* to ) + { + FT_Error error; + + + FT_ASSERT( border->start >= 0 ); + + error = ft_stroke_border_grow( border, 2 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *control; + vec[1] = *to; + + tag[0] = 0; + tag[1] = FT_STROKE_TAG_ON; + + border->num_points += 2; + } + + border->movable = FALSE; + + return error; + } + + + static FT_Error + ft_stroke_border_cubicto( FT_StrokeBorder border, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_Error error; + + + FT_ASSERT( border->start >= 0 ); + + error = ft_stroke_border_grow( border, 3 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *control1; + vec[1] = *control2; + vec[2] = *to; + + tag[0] = FT_STROKE_TAG_CUBIC; + tag[1] = FT_STROKE_TAG_CUBIC; + tag[2] = FT_STROKE_TAG_ON; + + border->num_points += 3; + } + + border->movable = FALSE; + + return error; + } + + +#define FT_ARC_CUBIC_ANGLE ( FT_ANGLE_PI / 2 ) + + + static FT_Error + ft_stroke_border_arcto( FT_StrokeBorder border, + FT_Vector* center, + FT_Fixed radius, + FT_Angle angle_start, + FT_Angle angle_diff ) + { + FT_Angle total, angle, step, rotate, next, theta; + FT_Vector a, b, a2, b2; + FT_Fixed length; + FT_Error error = FT_Err_Ok; + + + /* compute start point */ + FT_Vector_From_Polar( &a, radius, angle_start ); + a.x += center->x; + a.y += center->y; + + total = angle_diff; + angle = angle_start; + rotate = ( angle_diff >= 0 ) ? FT_ANGLE_PI2 : -FT_ANGLE_PI2; + + while ( total != 0 ) + { + step = total; + if ( step > FT_ARC_CUBIC_ANGLE ) + step = FT_ARC_CUBIC_ANGLE; + + else if ( step < -FT_ARC_CUBIC_ANGLE ) + step = -FT_ARC_CUBIC_ANGLE; + + next = angle + step; + theta = step; + if ( theta < 0 ) + theta = -theta; + + theta >>= 1; + + /* compute end point */ + FT_Vector_From_Polar( &b, radius, next ); + b.x += center->x; + b.y += center->y; + + /* compute first and second control points */ + length = FT_MulDiv( radius, FT_Sin( theta ) * 4, + ( 0x10000L + FT_Cos( theta ) ) * 3 ); + + FT_Vector_From_Polar( &a2, length, angle + rotate ); + a2.x += a.x; + a2.y += a.y; + + FT_Vector_From_Polar( &b2, length, next - rotate ); + b2.x += b.x; + b2.y += b.y; + + /* add cubic arc */ + error = ft_stroke_border_cubicto( border, &a2, &b2, &b ); + if ( error ) + break; + + /* process the rest of the arc ?? */ + a = b; + total -= step; + angle = next; + } + + return error; + } + + + static FT_Error + ft_stroke_border_moveto( FT_StrokeBorder border, + FT_Vector* to ) + { + /* close current open path if any ? */ + if ( border->start >= 0 ) + ft_stroke_border_close( border, FALSE ); + + border->start = border->num_points; + border->movable = FALSE; + + return ft_stroke_border_lineto( border, to, FALSE ); + } + + + static void + ft_stroke_border_init( FT_StrokeBorder border, + FT_Memory memory ) + { + border->memory = memory; + border->points = NULL; + border->tags = NULL; + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = FALSE; + } + + + static void + ft_stroke_border_reset( FT_StrokeBorder border ) + { + border->num_points = 0; + border->start = -1; + border->valid = FALSE; + } + + + static void + ft_stroke_border_done( FT_StrokeBorder border ) + { + FT_Memory memory = border->memory; + + + FT_FREE( border->points ); + FT_FREE( border->tags ); + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = FALSE; + } + + + static FT_Error + ft_stroke_border_get_counts( FT_StrokeBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_Error error = FT_Err_Ok; + FT_UInt num_points = 0; + FT_UInt num_contours = 0; + + FT_UInt count = border->num_points; + FT_Vector* point = border->points; + FT_Byte* tags = border->tags; + FT_Int in_contour = 0; + + + for ( ; count > 0; count--, num_points++, point++, tags++ ) + { + if ( tags[0] & FT_STROKE_TAG_BEGIN ) + { + if ( in_contour != 0 ) + goto Fail; + + in_contour = 1; + } + else if ( in_contour == 0 ) + goto Fail; + + if ( tags[0] & FT_STROKE_TAG_END ) + { + in_contour = 0; + num_contours++; + } + } + + if ( in_contour != 0 ) + goto Fail; + + border->valid = TRUE; + + Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + + Fail: + num_points = 0; + num_contours = 0; + goto Exit; + } + + + static void + ft_stroke_border_export( FT_StrokeBorder border, + FT_Outline* outline ) + { + /* copy point locations */ + FT_ARRAY_COPY( outline->points + outline->n_points, + border->points, + border->num_points ); + + /* copy tags */ + { + FT_UInt count = border->num_points; + FT_Byte* read = border->tags; + FT_Byte* write = (FT_Byte*)outline->tags + outline->n_points; + + + for ( ; count > 0; count--, read++, write++ ) + { + if ( *read & FT_STROKE_TAG_ON ) + *write = FT_CURVE_TAG_ON; + else if ( *read & FT_STROKE_TAG_CUBIC ) + *write = FT_CURVE_TAG_CUBIC; + else + *write = FT_CURVE_TAG_CONIC; + } + } + + /* copy contours */ + { + FT_UInt count = border->num_points; + FT_Byte* tags = border->tags; + FT_Short* write = outline->contours + outline->n_contours; + FT_Short idx = (FT_Short)outline->n_points; + + + for ( ; count > 0; count--, tags++, idx++ ) + { + if ( *tags & FT_STROKE_TAG_END ) + { + *write++ = idx; + outline->n_contours++; + } + } + } + + outline->n_points = (short)( outline->n_points + border->num_points ); + + FT_ASSERT( FT_Outline_Check( outline ) == 0 ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STROKER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define FT_SIDE_TO_ROTATE( s ) ( FT_ANGLE_PI2 - (s) * FT_ANGLE_PI ) + + typedef struct FT_StrokerRec_ + { + FT_Angle angle_in; /* direction into curr join */ + FT_Angle angle_out; /* direction out of join */ + FT_Vector center; /* current position */ + FT_Fixed line_length; /* length of last lineto */ + FT_Bool first_point; /* is this the start? */ + FT_Bool subpath_open; /* is the subpath open? */ + FT_Angle subpath_angle; /* subpath start direction */ + FT_Vector subpath_start; /* subpath start position */ + FT_Fixed subpath_line_length; /* subpath start lineto len */ + FT_Bool handle_wide_strokes; /* use wide strokes logic? */ + + FT_Stroker_LineCap line_cap; + FT_Stroker_LineJoin line_join; + FT_Stroker_LineJoin line_join_saved; + FT_Fixed miter_limit; + FT_Fixed radius; + + FT_StrokeBorderRec borders[2]; + FT_Library library; + + } FT_StrokerRec; + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_New( FT_Library library, + FT_Stroker *astroker ) + { + FT_Error error; + FT_Memory memory; + FT_Stroker stroker = NULL; + + + if ( !library ) + return FT_Err_Invalid_Argument; + + memory = library->memory; + + if ( !FT_NEW( stroker ) ) + { + stroker->library = library; + + ft_stroke_border_init( &stroker->borders[0], memory ); + ft_stroke_border_init( &stroker->borders[1], memory ); + } + + *astroker = stroker; + + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Set( FT_Stroker stroker, + FT_Fixed radius, + FT_Stroker_LineCap line_cap, + FT_Stroker_LineJoin line_join, + FT_Fixed miter_limit ) + { + stroker->radius = radius; + stroker->line_cap = line_cap; + stroker->line_join = line_join; + stroker->miter_limit = miter_limit; + + /* ensure miter limit has sensible value */ + if ( stroker->miter_limit < 0x10000 ) + stroker->miter_limit = 0x10000; + + /* save line join style: */ + /* line join style can be temporarily changed when stroking curves */ + stroker->line_join_saved = line_join; + + FT_Stroker_Rewind( stroker ); + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Rewind( FT_Stroker stroker ) + { + if ( stroker ) + { + ft_stroke_border_reset( &stroker->borders[0] ); + ft_stroke_border_reset( &stroker->borders[1] ); + } + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Done( FT_Stroker stroker ) + { + if ( stroker ) + { + FT_Memory memory = stroker->library->memory; + + + ft_stroke_border_done( &stroker->borders[0] ); + ft_stroke_border_done( &stroker->borders[1] ); + + stroker->library = NULL; + FT_FREE( stroker ); + } + } + + + /* create a circular arc at a corner or cap */ + static FT_Error + ft_stroker_arcto( FT_Stroker stroker, + FT_Int side ) + { + FT_Angle total, rotate; + FT_Fixed radius = stroker->radius; + FT_Error error = FT_Err_Ok; + FT_StrokeBorder border = stroker->borders + side; + + + rotate = FT_SIDE_TO_ROTATE( side ); + + total = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + if ( total == FT_ANGLE_PI ) + total = -rotate * 2; + + error = ft_stroke_border_arcto( border, + &stroker->center, + radius, + stroker->angle_in + rotate, + total ); + border->movable = FALSE; + return error; + } + + + /* add a cap at the end of an opened path */ + static FT_Error + ft_stroker_cap( FT_Stroker stroker, + FT_Angle angle, + FT_Int side ) + { + FT_Error error = FT_Err_Ok; + + + if ( stroker->line_cap == FT_STROKER_LINECAP_ROUND ) + { + /* add a round cap */ + stroker->angle_in = angle; + stroker->angle_out = angle + FT_ANGLE_PI; + + error = ft_stroker_arcto( stroker, side ); + } + else if ( stroker->line_cap == FT_STROKER_LINECAP_SQUARE ) + { + /* add a square cap */ + FT_Vector delta, delta2; + FT_Angle rotate = FT_SIDE_TO_ROTATE( side ); + FT_Fixed radius = stroker->radius; + FT_StrokeBorder border = stroker->borders + side; + + + FT_Vector_From_Polar( &delta2, radius, angle + rotate ); + FT_Vector_From_Polar( &delta, radius, angle ); + + delta.x += stroker->center.x + delta2.x; + delta.y += stroker->center.y + delta2.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + FT_Vector_From_Polar( &delta2, radius, angle - rotate ); + FT_Vector_From_Polar( &delta, radius, angle ); + + delta.x += delta2.x + stroker->center.x; + delta.y += delta2.y + stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + else if ( stroker->line_cap == FT_STROKER_LINECAP_BUTT ) + { + /* add a butt ending */ + FT_Vector delta; + FT_Angle rotate = FT_SIDE_TO_ROTATE( side ); + FT_Fixed radius = stroker->radius; + FT_StrokeBorder border = stroker->borders + side; + + + FT_Vector_From_Polar( &delta, radius, angle + rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + FT_Vector_From_Polar( &delta, radius, angle - rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + + Exit: + return error; + } + + + /* process an inside corner, i.e. compute intersection */ + static FT_Error + ft_stroker_inside( FT_Stroker stroker, + FT_Int side, + FT_Fixed line_length ) + { + FT_StrokeBorder border = stroker->borders + side; + FT_Angle phi, theta, rotate; + FT_Fixed length, thcos; + FT_Vector delta; + FT_Error error = FT_Err_Ok; + FT_Bool intersect; /* use intersection of lines? */ + + + rotate = FT_SIDE_TO_ROTATE( side ); + + theta = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ) / 2; + + /* Only intersect borders if between two lineto's and both */ + /* lines are long enough (line_length is zero for curves). */ + if ( !border->movable || line_length == 0 ) + intersect = FALSE; + else + { + /* compute minimum required length of lines */ + FT_Fixed min_length = ft_pos_abs( FT_MulFix( stroker->radius, + FT_Tan( theta ) ) ); + + + intersect = FT_BOOL( stroker->line_length >= min_length && + line_length >= min_length ); + } + + if ( !intersect ) + { + FT_Vector_From_Polar( &delta, stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + border->movable = FALSE; + } + else + { + /* compute median angle */ + phi = stroker->angle_in + theta; + + thcos = FT_Cos( theta ); + + length = FT_DivFix( stroker->radius, thcos ); + + FT_Vector_From_Polar( &delta, length, phi + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + } + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + + return error; + } + + + /* process an outside corner, i.e. compute bevel/miter/round */ + static FT_Error + ft_stroker_outside( FT_Stroker stroker, + FT_Int side, + FT_Fixed line_length ) + { + FT_StrokeBorder border = stroker->borders + side; + FT_Error error; + FT_Angle rotate; + + + if ( stroker->line_join == FT_STROKER_LINEJOIN_ROUND ) + error = ft_stroker_arcto( stroker, side ); + else + { + /* this is a mitered (pointed) or beveled (truncated) corner */ + FT_Fixed sigma = 0, radius = stroker->radius; + FT_Angle theta = 0, phi = 0; + FT_Fixed thcos = 0; + FT_Bool bevel, fixed_bevel; + + + rotate = FT_SIDE_TO_ROTATE( side ); + + bevel = + FT_BOOL( stroker->line_join == FT_STROKER_LINEJOIN_BEVEL ); + + fixed_bevel = + FT_BOOL( stroker->line_join != FT_STROKER_LINEJOIN_MITER_VARIABLE ); + + if ( !bevel ) + { + theta = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + + if ( theta == FT_ANGLE_PI ) + { + theta = rotate; + phi = stroker->angle_in; + } + else + { + theta /= 2; + phi = stroker->angle_in + theta + rotate; + } + + thcos = FT_Cos( theta ); + sigma = FT_MulFix( stroker->miter_limit, thcos ); + + /* is miter limit exceeded? */ + if ( sigma < 0x10000L ) + { + /* don't create variable bevels for very small deviations; */ + /* FT_Sin(x) = 0 for x <= 57 */ + if ( fixed_bevel || ft_pos_abs( theta ) > 57 ) + bevel = TRUE; + } + } + + if ( bevel ) /* this is a bevel (broken angle) */ + { + if ( fixed_bevel ) + { + /* the outer corners are simply joined together */ + FT_Vector delta; + + + /* add bevel */ + FT_Vector_From_Polar( &delta, + radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + else /* variable bevel */ + { + /* the miter is truncated */ + FT_Vector middle, delta; + FT_Fixed length; + + + /* compute middle point */ + FT_Vector_From_Polar( &middle, + FT_MulFix( radius, stroker->miter_limit ), + phi ); + middle.x += stroker->center.x; + middle.y += stroker->center.y; + + /* compute first angle point */ + length = FT_MulFix( radius, + FT_DivFix( 0x10000L - sigma, + ft_pos_abs( FT_Sin( theta ) ) ) ); + + FT_Vector_From_Polar( &delta, length, phi + rotate ); + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* compute second angle point */ + FT_Vector_From_Polar( &delta, length, phi - rotate ); + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* finally, add an end point; only needed if not lineto */ + /* (line_length is zero for curves) */ + if ( line_length == 0 ) + { + FT_Vector_From_Polar( &delta, + radius, + stroker->angle_out + rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + } + } + else /* this is a miter (intersection) */ + { + FT_Fixed length; + FT_Vector delta; + + + length = FT_DivFix( stroker->radius, thcos ); + + FT_Vector_From_Polar( &delta, length, phi ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* now add an end point; only needed if not lineto */ + /* (line_length is zero for curves) */ + if ( line_length == 0 ) + { + FT_Vector_From_Polar( &delta, + stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + } + } + + Exit: + return error; + } + + + static FT_Error + ft_stroker_process_corner( FT_Stroker stroker, + FT_Fixed line_length ) + { + FT_Error error = FT_Err_Ok; + FT_Angle turn; + FT_Int inside_side; + + + turn = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + + /* no specific corner processing is required if the turn is 0 */ + if ( turn == 0 ) + goto Exit; + + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if ( turn < 0 ) + inside_side = 1; + + /* process the inside side */ + error = ft_stroker_inside( stroker, inside_side, line_length ); + if ( error ) + goto Exit; + + /* process the outside side */ + error = ft_stroker_outside( stroker, 1 - inside_side, line_length ); + + Exit: + return error; + } + + + /* add two points to the left and right borders corresponding to the */ + /* start of the subpath */ + static FT_Error + ft_stroker_subpath_start( FT_Stroker stroker, + FT_Angle start_angle, + FT_Fixed line_length ) + { + FT_Vector delta; + FT_Vector point; + FT_Error error; + FT_StrokeBorder border; + + + FT_Vector_From_Polar( &delta, stroker->radius, + start_angle + FT_ANGLE_PI2 ); + + point.x = stroker->center.x + delta.x; + point.y = stroker->center.y + delta.y; + + border = stroker->borders; + error = ft_stroke_border_moveto( border, &point ); + if ( error ) + goto Exit; + + point.x = stroker->center.x - delta.x; + point.y = stroker->center.y - delta.y; + + border++; + error = ft_stroke_border_moveto( border, &point ); + + /* save angle, position, and line length for last join */ + /* (line_length is zero for curves) */ + stroker->subpath_angle = start_angle; + stroker->first_point = FALSE; + stroker->subpath_line_length = line_length; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_LineTo( FT_Stroker stroker, + FT_Vector* to ) + { + FT_Error error = FT_Err_Ok; + FT_StrokeBorder border; + FT_Vector delta; + FT_Angle angle; + FT_Int side; + FT_Fixed line_length; + + + delta.x = to->x - stroker->center.x; + delta.y = to->y - stroker->center.y; + + /* a zero-length lineto is a no-op; avoid creating a spurious corner */ + if ( delta.x == 0 && delta.y == 0 ) + goto Exit; + + /* compute length of line */ + line_length = FT_Vector_Length( &delta ); + + angle = FT_Atan2( delta.x, delta.y ); + FT_Vector_From_Polar( &delta, stroker->radius, angle + FT_ANGLE_PI2 ); + + /* process corner if necessary */ + if ( stroker->first_point ) + { + /* This is the first segment of a subpath. We need to */ + /* add a point to each border at their respective starting */ + /* point locations. */ + error = ft_stroker_subpath_start( stroker, angle, line_length ); + if ( error ) + goto Exit; + } + else + { + /* process the current corner */ + stroker->angle_out = angle; + error = ft_stroker_process_corner( stroker, line_length ); + if ( error ) + goto Exit; + } + + /* now add a line segment to both the `inside' and `outside' paths */ + for ( border = stroker->borders, side = 1; side >= 0; side--, border++ ) + { + FT_Vector point; + + + point.x = to->x + delta.x; + point.y = to->y + delta.y; + + /* the ends of lineto borders are movable */ + error = ft_stroke_border_lineto( border, &point, TRUE ); + if ( error ) + goto Exit; + + delta.x = -delta.x; + delta.y = -delta.y; + } + + stroker->angle_in = angle; + stroker->center = *to; + stroker->line_length = line_length; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_ConicTo( FT_Stroker stroker, + FT_Vector* control, + FT_Vector* to ) + { + FT_Error error = FT_Err_Ok; + FT_Vector bez_stack[34]; + FT_Vector* arc; + FT_Vector* limit = bez_stack + 30; + FT_Bool first_arc = TRUE; + + + /* if all control points are coincident, this is a no-op; */ + /* avoid creating a spurious corner */ + if ( FT_IS_SMALL( stroker->center.x - control->x ) && + FT_IS_SMALL( stroker->center.y - control->y ) && + FT_IS_SMALL( control->x - to->x ) && + FT_IS_SMALL( control->y - to->y ) ) + { + stroker->center = *to; + goto Exit; + } + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control; + arc[2] = stroker->center; + + while ( arc >= bez_stack ) + { + FT_Angle angle_in, angle_out; + + + /* initialize with current direction */ + angle_in = angle_out = stroker->angle_in; + + if ( arc < limit && + !ft_conic_is_small_enough( arc, &angle_in, &angle_out ) ) + { + if ( stroker->first_point ) + stroker->angle_in = angle_in; + + ft_conic_split( arc ); + arc += 2; + continue; + } + + if ( first_arc ) + { + first_arc = FALSE; + + /* process corner if necessary */ + if ( stroker->first_point ) + error = ft_stroker_subpath_start( stroker, angle_in, 0 ); + else + { + stroker->angle_out = angle_in; + error = ft_stroker_process_corner( stroker, 0 ); + } + } + else if ( ft_pos_abs( FT_Angle_Diff( stroker->angle_in, angle_in ) ) > + FT_SMALL_CONIC_THRESHOLD / 4 ) + { + /* if the deviation from one arc to the next is too great, */ + /* add a round corner */ + stroker->center = arc[2]; + stroker->angle_out = angle_in; + stroker->line_join = FT_STROKER_LINEJOIN_ROUND; + + error = ft_stroker_process_corner( stroker, 0 ); + + /* reinstate line join style */ + stroker->line_join = stroker->line_join_saved; + } + + if ( error ) + goto Exit; + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + FT_Vector ctrl, end; + FT_Angle theta, phi, rotate, alpha0 = 0; + FT_Fixed length; + FT_StrokeBorder border; + FT_Int side; + + + theta = FT_Angle_Diff( angle_in, angle_out ) / 2; + phi = angle_in + theta; + length = FT_DivFix( stroker->radius, FT_Cos( theta ) ); + + /* compute direction of original arc */ + if ( stroker->handle_wide_strokes ) + alpha0 = FT_Atan2( arc[0].x - arc[2].x, arc[0].y - arc[2].y ); + + for ( border = stroker->borders, side = 0; + side <= 1; + side++, border++ ) + { + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute control point */ + FT_Vector_From_Polar( &ctrl, length, phi + rotate ); + ctrl.x += arc[1].x; + ctrl.y += arc[1].y; + + /* compute end point */ + FT_Vector_From_Polar( &end, stroker->radius, angle_out + rotate ); + end.x += arc[0].x; + end.y += arc[0].y; + + if ( stroker->handle_wide_strokes ) + { + FT_Vector start; + FT_Angle alpha1; + + + /* determine whether the border radius is greater than the */ + /* radius of curvature of the original arc */ + start = border->points[border->num_points - 1]; + + alpha1 = FT_Atan2( end.x - start.x, end.y - start.y ); + + /* is the direction of the border arc opposite to */ + /* that of the original arc? */ + if ( ft_pos_abs( FT_Angle_Diff( alpha0, alpha1 ) ) > + FT_ANGLE_PI / 2 ) + { + FT_Angle beta, gamma; + FT_Vector bvec, delta; + FT_Fixed blen, sinA, sinB, alen; + + + /* use the sine rule to find the intersection point */ + beta = FT_Atan2( arc[2].x - start.x, arc[2].y - start.y ); + gamma = FT_Atan2( arc[0].x - end.x, arc[0].y - end.y ); + + bvec.x = end.x - start.x; + bvec.y = end.y - start.y; + + blen = FT_Vector_Length( &bvec ); + + sinA = ft_pos_abs( FT_Sin( alpha1 - gamma ) ); + sinB = ft_pos_abs( FT_Sin( beta - gamma ) ); + + alen = FT_DivFix( FT_MulFix( blen, sinA ), sinB ); + + FT_Vector_From_Polar( &delta, alen, beta ); + delta.x += start.x; + delta.y += start.y; + + /* circumnavigate the negative sector backwards */ + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_conicto( border, &ctrl, &start ); + if ( error ) + goto Exit; + /* and then move to the endpoint */ + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + + continue; + } + + /* else fall through */ + } + + /* simply add an arc */ + error = ft_stroke_border_conicto( border, &ctrl, &end ); + if ( error ) + goto Exit; + } + } + + arc -= 2; + + stroker->angle_in = angle_out; + } + + stroker->center = *to; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_CubicTo( FT_Stroker stroker, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_Error error = FT_Err_Ok; + FT_Vector bez_stack[37]; + FT_Vector* arc; + FT_Vector* limit = bez_stack + 32; + FT_Bool first_arc = TRUE; + + + /* if all control points are coincident, this is a no-op; */ + /* avoid creating a spurious corner */ + if ( FT_IS_SMALL( stroker->center.x - control1->x ) && + FT_IS_SMALL( stroker->center.y - control1->y ) && + FT_IS_SMALL( control1->x - control2->x ) && + FT_IS_SMALL( control1->y - control2->y ) && + FT_IS_SMALL( control2->x - to->x ) && + FT_IS_SMALL( control2->y - to->y ) ) + { + stroker->center = *to; + goto Exit; + } + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control2; + arc[2] = *control1; + arc[3] = stroker->center; + + while ( arc >= bez_stack ) + { + FT_Angle angle_in, angle_mid, angle_out; + + + /* initialize with current direction */ + angle_in = angle_out = angle_mid = stroker->angle_in; + + if ( arc < limit && + !ft_cubic_is_small_enough( arc, &angle_in, + &angle_mid, &angle_out ) ) + { + if ( stroker->first_point ) + stroker->angle_in = angle_in; + + ft_cubic_split( arc ); + arc += 3; + continue; + } + + if ( first_arc ) + { + first_arc = FALSE; + + /* process corner if necessary */ + if ( stroker->first_point ) + error = ft_stroker_subpath_start( stroker, angle_in, 0 ); + else + { + stroker->angle_out = angle_in; + error = ft_stroker_process_corner( stroker, 0 ); + } + } + else if ( ft_pos_abs( FT_Angle_Diff( stroker->angle_in, angle_in ) ) > + FT_SMALL_CUBIC_THRESHOLD / 4 ) + { + /* if the deviation from one arc to the next is too great, */ + /* add a round corner */ + stroker->center = arc[3]; + stroker->angle_out = angle_in; + stroker->line_join = FT_STROKER_LINEJOIN_ROUND; + + error = ft_stroker_process_corner( stroker, 0 ); + + /* reinstate line join style */ + stroker->line_join = stroker->line_join_saved; + } + + if ( error ) + goto Exit; + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + FT_Vector ctrl1, ctrl2, end; + FT_Angle theta1, phi1, theta2, phi2, rotate, alpha0 = 0; + FT_Fixed length1, length2; + FT_StrokeBorder border; + FT_Int side; + + + theta1 = FT_Angle_Diff( angle_in, angle_mid ) / 2; + theta2 = FT_Angle_Diff( angle_mid, angle_out ) / 2; + phi1 = ft_angle_mean( angle_in, angle_mid ); + phi2 = ft_angle_mean( angle_mid, angle_out ); + length1 = FT_DivFix( stroker->radius, FT_Cos( theta1 ) ); + length2 = FT_DivFix( stroker->radius, FT_Cos( theta2 ) ); + + /* compute direction of original arc */ + if ( stroker->handle_wide_strokes ) + alpha0 = FT_Atan2( arc[0].x - arc[3].x, arc[0].y - arc[3].y ); + + for ( border = stroker->borders, side = 0; + side <= 1; + side++, border++ ) + { + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute control points */ + FT_Vector_From_Polar( &ctrl1, length1, phi1 + rotate ); + ctrl1.x += arc[2].x; + ctrl1.y += arc[2].y; + + FT_Vector_From_Polar( &ctrl2, length2, phi2 + rotate ); + ctrl2.x += arc[1].x; + ctrl2.y += arc[1].y; + + /* compute end point */ + FT_Vector_From_Polar( &end, stroker->radius, angle_out + rotate ); + end.x += arc[0].x; + end.y += arc[0].y; + + if ( stroker->handle_wide_strokes ) + { + FT_Vector start; + FT_Angle alpha1; + + + /* determine whether the border radius is greater than the */ + /* radius of curvature of the original arc */ + start = border->points[border->num_points - 1]; + + alpha1 = FT_Atan2( end.x - start.x, end.y - start.y ); + + /* is the direction of the border arc opposite to */ + /* that of the original arc? */ + if ( ft_pos_abs( FT_Angle_Diff( alpha0, alpha1 ) ) > + FT_ANGLE_PI / 2 ) + { + FT_Angle beta, gamma; + FT_Vector bvec, delta; + FT_Fixed blen, sinA, sinB, alen; + + + /* use the sine rule to find the intersection point */ + beta = FT_Atan2( arc[3].x - start.x, arc[3].y - start.y ); + gamma = FT_Atan2( arc[0].x - end.x, arc[0].y - end.y ); + + bvec.x = end.x - start.x; + bvec.y = end.y - start.y; + + blen = FT_Vector_Length( &bvec ); + + sinA = ft_pos_abs( FT_Sin( alpha1 - gamma ) ); + sinB = ft_pos_abs( FT_Sin( beta - gamma ) ); + + alen = FT_DivFix( FT_MulFix( blen, sinA ), sinB ); + + FT_Vector_From_Polar( &delta, alen, beta ); + delta.x += start.x; + delta.y += start.y; + + /* circumnavigate the negative sector backwards */ + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_cubicto( border, + &ctrl2, + &ctrl1, + &start ); + if ( error ) + goto Exit; + /* and then move to the endpoint */ + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + + continue; + } + + /* else fall through */ + } + + /* simply add an arc */ + error = ft_stroke_border_cubicto( border, &ctrl1, &ctrl2, &end ); + if ( error ) + goto Exit; + } + } + + arc -= 3; + + stroker->angle_in = angle_out; + } + + stroker->center = *to; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_BeginSubPath( FT_Stroker stroker, + FT_Vector* to, + FT_Bool open ) + { + /* We cannot process the first point, because there is not enough */ + /* information regarding its corner/cap. The latter will be processed */ + /* in the `FT_Stroker_EndSubPath' routine. */ + /* */ + stroker->first_point = TRUE; + stroker->center = *to; + stroker->subpath_open = open; + + /* Determine if we need to check whether the border radius is greater */ + /* than the radius of curvature of a curve, to handle this case */ + /* specially. This is only required if bevel joins or butt caps may */ + /* be created, because round & miter joins and round & square caps */ + /* cover the negative sector created with wide strokes. */ + stroker->handle_wide_strokes = + FT_BOOL( stroker->line_join != FT_STROKER_LINEJOIN_ROUND || + ( stroker->subpath_open && + stroker->line_cap == FT_STROKER_LINECAP_BUTT ) ); + + /* record the subpath start point for each border */ + stroker->subpath_start = *to; + + stroker->angle_in = 0; + + return FT_Err_Ok; + } + + + static FT_Error + ft_stroker_add_reverse_left( FT_Stroker stroker, + FT_Bool open ) + { + FT_StrokeBorder right = stroker->borders + 0; + FT_StrokeBorder left = stroker->borders + 1; + FT_Int new_points; + FT_Error error = FT_Err_Ok; + + + FT_ASSERT( left->start >= 0 ); + + new_points = left->num_points - left->start; + if ( new_points > 0 ) + { + error = ft_stroke_border_grow( right, (FT_UInt)new_points ); + if ( error ) + goto Exit; + + { + FT_Vector* dst_point = right->points + right->num_points; + FT_Byte* dst_tag = right->tags + right->num_points; + FT_Vector* src_point = left->points + left->num_points - 1; + FT_Byte* src_tag = left->tags + left->num_points - 1; + + + while ( src_point >= left->points + left->start ) + { + *dst_point = *src_point; + *dst_tag = *src_tag; + + if ( open ) + dst_tag[0] &= ~FT_STROKE_TAG_BEGIN_END; + else + { + FT_Byte ttag = + (FT_Byte)( dst_tag[0] & FT_STROKE_TAG_BEGIN_END ); + + + /* switch begin/end tags if necessary */ + if ( ttag == FT_STROKE_TAG_BEGIN || + ttag == FT_STROKE_TAG_END ) + dst_tag[0] ^= FT_STROKE_TAG_BEGIN_END; + } + + src_point--; + src_tag--; + dst_point++; + dst_tag++; + } + } + + left->num_points = left->start; + right->num_points += new_points; + + right->movable = FALSE; + left->movable = FALSE; + } + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + /* there's a lot of magic in this function! */ + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_EndSubPath( FT_Stroker stroker ) + { + FT_Error error = FT_Err_Ok; + + + if ( stroker->subpath_open ) + { + FT_StrokeBorder right = stroker->borders; + + + /* All right, this is an opened path, we need to add a cap between */ + /* right & left, add the reverse of left, then add a final cap */ + /* between left & right. */ + error = ft_stroker_cap( stroker, stroker->angle_in, 0 ); + if ( error ) + goto Exit; + + /* add reversed points from `left' to `right' */ + error = ft_stroker_add_reverse_left( stroker, TRUE ); + if ( error ) + goto Exit; + + /* now add the final cap */ + stroker->center = stroker->subpath_start; + error = ft_stroker_cap( stroker, + stroker->subpath_angle + FT_ANGLE_PI, 0 ); + if ( error ) + goto Exit; + + /* Now end the right subpath accordingly. The left one is */ + /* rewind and doesn't need further processing. */ + ft_stroke_border_close( right, FALSE ); + } + else + { + FT_Angle turn; + FT_Int inside_side; + + + /* close the path if needed */ + if ( stroker->center.x != stroker->subpath_start.x || + stroker->center.y != stroker->subpath_start.y ) + { + error = FT_Stroker_LineTo( stroker, &stroker->subpath_start ); + if ( error ) + goto Exit; + } + + /* process the corner */ + stroker->angle_out = stroker->subpath_angle; + turn = FT_Angle_Diff( stroker->angle_in, + stroker->angle_out ); + + /* no specific corner processing is required if the turn is 0 */ + if ( turn != 0 ) + { + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if ( turn < 0 ) + inside_side = 1; + + error = ft_stroker_inside( stroker, + inside_side, + stroker->subpath_line_length ); + if ( error ) + goto Exit; + + /* process the outside side */ + error = ft_stroker_outside( stroker, + 1 - inside_side, + stroker->subpath_line_length ); + if ( error ) + goto Exit; + } + + /* then end our two subpaths */ + ft_stroke_border_close( stroker->borders + 0, FALSE ); + ft_stroke_border_close( stroker->borders + 1, TRUE ); + } + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_GetBorderCounts( FT_Stroker stroker, + FT_StrokerBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_UInt num_points = 0, num_contours = 0; + FT_Error error; + + + if ( !stroker || border > 1 ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + error = ft_stroke_border_get_counts( stroker->borders + border, + &num_points, &num_contours ); + Exit: + if ( anum_points ) + *anum_points = num_points; + + if ( anum_contours ) + *anum_contours = num_contours; + + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_GetCounts( FT_Stroker stroker, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_UInt count1, count2, num_points = 0; + FT_UInt count3, count4, num_contours = 0; + FT_Error error; + + + error = ft_stroke_border_get_counts( stroker->borders + 0, + &count1, &count2 ); + if ( error ) + goto Exit; + + error = ft_stroke_border_get_counts( stroker->borders + 1, + &count3, &count4 ); + if ( error ) + goto Exit; + + num_points = count1 + count3; + num_contours = count2 + count4; + + Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_ExportBorder( FT_Stroker stroker, + FT_StrokerBorder border, + FT_Outline* outline ) + { + if ( border == FT_STROKER_BORDER_LEFT || + border == FT_STROKER_BORDER_RIGHT ) + { + FT_StrokeBorder sborder = & stroker->borders[border]; + + + if ( sborder->valid ) + ft_stroke_border_export( sborder, outline ); + } + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Export( FT_Stroker stroker, + FT_Outline* outline ) + { + FT_Stroker_ExportBorder( stroker, FT_STROKER_BORDER_LEFT, outline ); + FT_Stroker_ExportBorder( stroker, FT_STROKER_BORDER_RIGHT, outline ); + } + + + /* documentation is in ftstroke.h */ + + /* + * The following is very similar to FT_Outline_Decompose, except + * that we do support opened paths, and do not scale the outline. + */ + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_ParseOutline( FT_Stroker stroker, + FT_Outline* outline, + FT_Bool opened ) + { + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* point; + FT_Vector* limit; + char* tags; + + FT_Error error; + + FT_Int n; /* index of contour in outline */ + FT_UInt first; /* index of first point in contour */ + FT_Int tag; /* current point's state */ + + + if ( !outline || !stroker ) + return FT_Err_Invalid_Argument; + + FT_Stroker_Rewind( stroker ); + + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + FT_UInt last; /* index of last point in contour */ + + + last = outline->contours[n]; + limit = outline->points + last; + + /* skip empty points; we don't stroke these */ + if ( last <= first ) + { + first = last + 1; + continue; + } + + v_start = outline->points[first]; + v_last = outline->points[last]; + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* First point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + } + point--; + tags--; + } + + error = FT_Stroker_BeginSubPath( stroker, &v_start, opened ); + if ( error ) + goto Exit; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + FT_Vector vec; + + + vec.x = point->x; + vec.y = point->y; + + error = FT_Stroker_LineTo( stroker, &vec ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = point->x; + v_control.y = point->y; + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec = point[0]; + + if ( tag == FT_CURVE_TAG_ON ) + { + error = FT_Stroker_ConicTo( stroker, &v_control, &vec ); + if ( error ) + goto Exit; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + vec.x ) / 2; + v_middle.y = ( v_control.y + vec.y ) / 2; + + error = FT_Stroker_ConicTo( stroker, &v_control, &v_middle ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + error = FT_Stroker_ConicTo( stroker, &v_control, &v_start ); + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + FT_Vector vec1, vec2; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1 = point[-2]; + vec2 = point[-1]; + + if ( point <= limit ) + { + FT_Vector vec; + + + vec = point[0]; + + error = FT_Stroker_CubicTo( stroker, &vec1, &vec2, &vec ); + if ( error ) + goto Exit; + continue; + } + + error = FT_Stroker_CubicTo( stroker, &vec1, &vec2, &v_start ); + goto Close; + } + } + } + + Close: + if ( error ) + goto Exit; + + error = FT_Stroker_EndSubPath( stroker ); + if ( error ) + goto Exit; + + first = last + 1; + } + + return FT_Err_Ok; + + Exit: + return error; + + Invalid_Outline: + return FT_Err_Invalid_Outline; + } + + + /* declare an extern to access `ft_outline_glyph_class' globally */ + /* allocated in `ftglyph.c', and use the FT_OUTLINE_GLYPH_CLASS_GET */ + /* macro to access it when FT_CONFIG_OPTION_PIC is defined */ +#ifndef FT_CONFIG_OPTION_PIC + extern const FT_Glyph_Class ft_outline_glyph_class; +#endif +#include "basepic.h" + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Stroke( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool destroy ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Glyph glyph = NULL; + FT_Library library = stroker->library; + + FT_UNUSED( library ); + + + if ( pglyph == NULL ) + goto Exit; + + glyph = *pglyph; + if ( glyph == NULL || glyph->clazz != FT_OUTLINE_GLYPH_CLASS_GET ) + goto Exit; + + { + FT_Glyph copy; + + + error = FT_Glyph_Copy( glyph, © ); + if ( error ) + goto Exit; + + glyph = copy; + } + + { + FT_OutlineGlyph oglyph = (FT_OutlineGlyph)glyph; + FT_Outline* outline = &oglyph->outline; + FT_UInt num_points, num_contours; + + + error = FT_Stroker_ParseOutline( stroker, outline, FALSE ); + if ( error ) + goto Fail; + + (void)FT_Stroker_GetCounts( stroker, &num_points, &num_contours ); + + FT_Outline_Done( glyph->library, outline ); + + error = FT_Outline_New( glyph->library, + num_points, num_contours, outline ); + if ( error ) + goto Fail; + + outline->n_points = 0; + outline->n_contours = 0; + + FT_Stroker_Export( stroker, outline ); + } + + if ( destroy ) + FT_Done_Glyph( *pglyph ); + + *pglyph = glyph; + goto Exit; + + Fail: + FT_Done_Glyph( glyph ); + glyph = NULL; + + if ( !destroy ) + *pglyph = NULL; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_StrokeBorder( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool inside, + FT_Bool destroy ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Glyph glyph = NULL; + FT_Library library = stroker->library; + + FT_UNUSED( library ); + + + if ( pglyph == NULL ) + goto Exit; + + glyph = *pglyph; + if ( glyph == NULL || glyph->clazz != FT_OUTLINE_GLYPH_CLASS_GET ) + goto Exit; + + { + FT_Glyph copy; + + + error = FT_Glyph_Copy( glyph, © ); + if ( error ) + goto Exit; + + glyph = copy; + } + + { + FT_OutlineGlyph oglyph = (FT_OutlineGlyph)glyph; + FT_StrokerBorder border; + FT_Outline* outline = &oglyph->outline; + FT_UInt num_points, num_contours; + + + border = FT_Outline_GetOutsideBorder( outline ); + if ( inside ) + { + if ( border == FT_STROKER_BORDER_LEFT ) + border = FT_STROKER_BORDER_RIGHT; + else + border = FT_STROKER_BORDER_LEFT; + } + + error = FT_Stroker_ParseOutline( stroker, outline, FALSE ); + if ( error ) + goto Fail; + + (void)FT_Stroker_GetBorderCounts( stroker, border, + &num_points, &num_contours ); + + FT_Outline_Done( glyph->library, outline ); + + error = FT_Outline_New( glyph->library, + num_points, + num_contours, + outline ); + if ( error ) + goto Fail; + + outline->n_points = 0; + outline->n_contours = 0; + + FT_Stroker_ExportBorder( stroker, border, outline ); + } + + if ( destroy ) + FT_Done_Glyph( *pglyph ); + + *pglyph = glyph; + goto Exit; + + Fail: + FT_Done_Glyph( glyph ); + glyph = NULL; + + if ( !destroy ) + *pglyph = NULL; + + Exit: + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftsynth.c b/uppsrc/plugin/FT_fontsys/src/base/ftsynth.c new file mode 100644 index 000000000..2eb00bd78 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftsynth.c @@ -0,0 +1,160 @@ +/***************************************************************************/ +/* */ +/* ftsynth.c */ +/* */ +/* FreeType synthesizing code for emboldening and slanting (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_SYNTHESIS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_OUTLINE_H +#include FT_BITMAP_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_synth + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** EXPERIMENTAL OBLIQUING SUPPORT ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + /* documentation is in ftsynth.h */ + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Oblique( FT_GlyphSlot slot ) + { + FT_Matrix transform; + FT_Outline* outline = &slot->outline; + + + /* only oblique outline glyphs */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + return; + + /* we don't touch the advance width */ + + /* For italic, simply apply a shear transform, with an angle */ + /* of about 12 degrees. */ + + transform.xx = 0x10000L; + transform.yx = 0x00000L; + + transform.xy = 0x06000L; + transform.yy = 0x10000L; + + FT_Outline_Transform( outline, &transform ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** EXPERIMENTAL EMBOLDENING/OUTLINING SUPPORT ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftsynth.h */ + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Embolden( FT_GlyphSlot slot ) + { + FT_Library library = slot->library; + FT_Face face = slot->face; + FT_Error error; + FT_Pos xstr, ystr; + + + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE && + slot->format != FT_GLYPH_FORMAT_BITMAP ) + return; + + /* some reasonable strength */ + xstr = FT_MulFix( face->units_per_EM, + face->size->metrics.y_scale ) / 24; + ystr = xstr; + + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* ignore error */ + (void)FT_Outline_Embolden( &slot->outline, xstr ); + + /* this is more than enough for most glyphs; if you need accurate */ + /* values, you have to call FT_Outline_Get_CBox */ + xstr = xstr * 2; + ystr = xstr; + } + else /* slot->format == FT_GLYPH_FORMAT_BITMAP */ + { + /* round to full pixels */ + xstr &= ~63; + if ( xstr == 0 ) + xstr = 1 << 6; + ystr &= ~63; + + /* + * XXX: overflow check for 16-bit system, for compatibility + * with FT_GlyphSlot_Embolden() since freetype-2.1.10. + * unfortunately, this function return no informations + * about the cause of error. + */ + if ( ( ystr >> 6 ) > FT_INT_MAX || ( ystr >> 6 ) < FT_INT_MIN ) + { + FT_TRACE1(( "FT_GlyphSlot_Embolden:" )); + FT_TRACE1(( "too strong embolding parameter ystr=%d\n", ystr )); + return; + } + error = FT_GlyphSlot_Own_Bitmap( slot ); + if ( error ) + return; + + error = FT_Bitmap_Embolden( library, &slot->bitmap, xstr, ystr ); + if ( error ) + return; + } + + if ( slot->advance.x ) + slot->advance.x += xstr; + + if ( slot->advance.y ) + slot->advance.y += ystr; + + slot->metrics.width += xstr; + slot->metrics.height += ystr; + slot->metrics.horiBearingY += ystr; + slot->metrics.horiAdvance += xstr; + slot->metrics.vertBearingX -= xstr / 2; + slot->metrics.vertBearingY += ystr; + slot->metrics.vertAdvance += ystr; + + /* XXX: 16-bit overflow case must be excluded before here */ + if ( slot->format == FT_GLYPH_FORMAT_BITMAP ) + slot->bitmap_top += (FT_Int)( ystr >> 6 ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftsystem.c b/uppsrc/plugin/FT_fontsys/src/base/ftsystem.c new file mode 100644 index 000000000..db14b5935 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftsystem.c @@ -0,0 +1,320 @@ +/***************************************************************************/ +/* */ +/* ftsystem.c */ +/* */ +/* ANSI-specific FreeType low-level system interface (body). */ +/* */ +/* Copyright 1996-2002, 2006, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the default interface used by FreeType to access */ + /* low-level, i.e. memory management, i/o access as well as thread */ + /* synchronisation. It can be replaced by user-specific routines if */ + /* necessary. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + + + /*************************************************************************/ + /* */ + /* MEMORY MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* It is not necessary to do any error checking for the */ + /* allocation-related functions. This will be done by the higher level */ + /* routines like ft_mem_alloc() or ft_mem_realloc(). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_alloc */ + /* */ + /* <Description> */ + /* The memory allocation function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* size :: The requested size in bytes. */ + /* */ + /* <Return> */ + /* The address of newly allocated block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { + FT_UNUSED( memory ); + + return ft_smalloc( size ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_realloc */ + /* */ + /* <Description> */ + /* The memory reallocation function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* cur_size :: The current size of the allocated memory block. */ + /* */ + /* new_size :: The newly requested size in bytes. */ + /* */ + /* block :: The current address of the block in memory. */ + /* */ + /* <Return> */ + /* The address of the reallocated memory block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + FT_UNUSED( memory ); + FT_UNUSED( cur_size ); + + return ft_srealloc( block, new_size ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_free */ + /* */ + /* <Description> */ + /* The memory release function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* block :: The address of block in memory to be freed. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { + FT_UNUSED( memory ); + + ft_sfree( block ); + } + + + /*************************************************************************/ + /* */ + /* RESOURCE MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + +#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (FT_FILE*)stream->descriptor.pointer ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_ansi_stream_close */ + /* */ + /* <Description> */ + /* The function to close a stream. */ + /* */ + /* <Input> */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_ansi_stream_close( FT_Stream stream ) + { + ft_fclose( STREAM_FILE( stream ) ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_ansi_stream_io */ + /* */ + /* <Description> */ + /* The function to open a stream. */ + /* */ + /* <Input> */ + /* stream :: A pointer to the stream object. */ + /* */ + /* offset :: The position in the data stream to start reading. */ + /* */ + /* buffer :: The address of buffer to store the read data. */ + /* */ + /* count :: The number of bytes to read from the stream. */ + /* */ + /* <Return> */ + /* The number of bytes actually read. If `count' is zero (this is, */ + /* the function is used for seeking), a non-zero return value */ + /* indicates an error. */ + /* */ + FT_CALLBACK_DEF( unsigned long ) + ft_ansi_stream_io( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ) + { + FT_FILE* file; + + + if ( !count && offset > stream->size ) + return 1; + + file = STREAM_FILE( stream ); + + if ( stream->pos != offset ) + ft_fseek( file, offset, SEEK_SET ); + + return (unsigned long)ft_fread( buffer, 1, count, file ); + } + + + /* documentation is in ftstream.h */ + + FT_BASE_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + FT_FILE* file; + + + if ( !stream ) + return FT_Err_Invalid_Stream_Handle; + + stream->descriptor.pointer = NULL; + stream->pathname.pointer = (char*)filepathname; + stream->base = 0; + stream->pos = 0; + stream->read = NULL; + stream->close = NULL; + + file = ft_fopen( filepathname, "rb" ); + if ( !file ) + { + FT_ERROR(( "FT_Stream_Open:" + " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + + ft_fseek( file, 0, SEEK_END ); + stream->size = ft_ftell( file ); + if ( !stream->size ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " opened `%s' but zero-sized\n", filepathname )); + ft_fclose( file ); + return FT_Err_Cannot_Open_Stream; + } + ft_fseek( file, 0, SEEK_SET ); + + stream->descriptor.pointer = file; + stream->read = ft_ansi_stream_io; + stream->close = ft_ansi_stream_close; + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + } + +#endif /* !FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Memory ) + FT_New_Memory( void ) + { + FT_Memory memory; + + + memory = (FT_Memory)ft_smalloc( sizeof ( *memory ) ); + if ( memory ) + { + memory->user = 0; + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + ft_sfree( memory ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/fttrigon.c b/uppsrc/plugin/FT_fontsys/src/base/fttrigon.c new file mode 100644 index 000000000..e13a3b563 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/fttrigon.c @@ -0,0 +1,546 @@ +/***************************************************************************/ +/* */ +/* fttrigon.c */ +/* */ +/* FreeType trigonometric functions (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_TRIGONOMETRY_H + + + /* the following is 0.2715717684432231 * 2^30 */ +#define FT_TRIG_COSCALE 0x11616E8EUL + + /* this table was generated for FT_PI = 180L << 16, i.e. degrees */ +#define FT_TRIG_MAX_ITERS 23 + + static const FT_Fixed + ft_trig_arctan_table[24] = + { + 4157273L, 2949120L, 1740967L, 919879L, 466945L, 234379L, 117304L, + 58666L, 29335L, 14668L, 7334L, 3667L, 1833L, 917L, 458L, 229L, 115L, + 57L, 29L, 14L, 7L, 4L, 2L, 1L + }; + + /* the Cordic shrink factor, multiplied by 2^32 */ +#define FT_TRIG_SCALE 1166391785UL /* 0x4585BA38UL */ + + +#ifdef FT_CONFIG_HAS_INT64 + + /* multiply a given value by the CORDIC shrink factor */ + static FT_Fixed + ft_trig_downscale( FT_Fixed val ) + { + FT_Fixed s; + FT_Int64 v; + + + s = val; + val = ( val >= 0 ) ? val : -val; + + v = ( val * (FT_Int64)FT_TRIG_SCALE ) + 0x100000000UL; + val = (FT_Fixed)( v >> 32 ); + + return ( s >= 0 ) ? val : -val; + } + +#else /* !FT_CONFIG_HAS_INT64 */ + + /* multiply a given value by the CORDIC shrink factor */ + static FT_Fixed + ft_trig_downscale( FT_Fixed val ) + { + FT_Fixed s; + FT_UInt32 v1, v2, k1, k2, hi, lo1, lo2, lo3; + + + s = val; + val = ( val >= 0 ) ? val : -val; + + v1 = (FT_UInt32)val >> 16; + v2 = (FT_UInt32)(val & 0xFFFFL); + + k1 = (FT_UInt32)FT_TRIG_SCALE >> 16; /* constant */ + k2 = (FT_UInt32)(FT_TRIG_SCALE & 0xFFFFL); /* constant */ + + hi = k1 * v1; + lo1 = k1 * v2 + k2 * v1; /* can't overflow */ + + lo2 = ( k2 * v2 ) >> 16; + lo3 = ( lo1 >= lo2 ) ? lo1 : lo2; + lo1 += lo2; + + hi += lo1 >> 16; + if ( lo1 < lo3 ) + hi += (FT_UInt32)0x10000UL; + + val = (FT_Fixed)hi; + + return ( s >= 0 ) ? val : -val; + } + +#endif /* !FT_CONFIG_HAS_INT64 */ + + + static FT_Int + ft_trig_prenorm( FT_Vector* vec ) + { + FT_Fixed x, y, z; + FT_Int shift; + + + x = vec->x; + y = vec->y; + + z = ( ( x >= 0 ) ? x : - x ) | ( (y >= 0) ? y : -y ); + shift = 0; + +#if 1 + /* determine msb bit index in `shift' */ + if ( z >= ( 1L << 16 ) ) + { + z >>= 16; + shift += 16; + } + if ( z >= ( 1L << 8 ) ) + { + z >>= 8; + shift += 8; + } + if ( z >= ( 1L << 4 ) ) + { + z >>= 4; + shift += 4; + } + if ( z >= ( 1L << 2 ) ) + { + z >>= 2; + shift += 2; + } + if ( z >= ( 1L << 1 ) ) + { + z >>= 1; + shift += 1; + } + + if ( shift <= 27 ) + { + shift = 27 - shift; + vec->x = x << shift; + vec->y = y << shift; + } + else + { + shift -= 27; + vec->x = x >> shift; + vec->y = y >> shift; + shift = -shift; + } + +#else /* 0 */ + + if ( z < ( 1L << 27 ) ) + { + do + { + shift++; + z <<= 1; + } while ( z < ( 1L << 27 ) ); + vec->x = x << shift; + vec->y = y << shift; + } + else if ( z > ( 1L << 28 ) ) + { + do + { + shift++; + z >>= 1; + } while ( z > ( 1L << 28 ) ); + + vec->x = x >> shift; + vec->y = y >> shift; + shift = -shift; + } + +#endif /* 0 */ + + return shift; + } + + + static void + ft_trig_pseudo_rotate( FT_Vector* vec, + FT_Angle theta ) + { + FT_Int i; + FT_Fixed x, y, xtemp; + const FT_Fixed *arctanptr; + + + x = vec->x; + y = vec->y; + + /* Get angle between -90 and 90 degrees */ + while ( theta <= -FT_ANGLE_PI2 ) + { + x = -x; + y = -y; + theta += FT_ANGLE_PI; + } + + while ( theta > FT_ANGLE_PI2 ) + { + x = -x; + y = -y; + theta -= FT_ANGLE_PI; + } + + /* Initial pseudorotation, with left shift */ + arctanptr = ft_trig_arctan_table; + + if ( theta < 0 ) + { + xtemp = x + ( y << 1 ); + y = y - ( x << 1 ); + x = xtemp; + theta += *arctanptr++; + } + else + { + xtemp = x - ( y << 1 ); + y = y + ( x << 1 ); + x = xtemp; + theta -= *arctanptr++; + } + + /* Subsequent pseudorotations, with right shifts */ + i = 0; + do + { + if ( theta < 0 ) + { + xtemp = x + ( y >> i ); + y = y - ( x >> i ); + x = xtemp; + theta += *arctanptr++; + } + else + { + xtemp = x - ( y >> i ); + y = y + ( x >> i ); + x = xtemp; + theta -= *arctanptr++; + } + } while ( ++i < FT_TRIG_MAX_ITERS ); + + vec->x = x; + vec->y = y; + } + + + static void + ft_trig_pseudo_polarize( FT_Vector* vec ) + { + FT_Fixed theta; + FT_Fixed yi, i; + FT_Fixed x, y; + const FT_Fixed *arctanptr; + + + x = vec->x; + y = vec->y; + + /* Get the vector into the right half plane */ + theta = 0; + if ( x < 0 ) + { + x = -x; + y = -y; + theta = 2 * FT_ANGLE_PI2; + } + + if ( y > 0 ) + theta = - theta; + + arctanptr = ft_trig_arctan_table; + + if ( y < 0 ) + { + /* Rotate positive */ + yi = y + ( x << 1 ); + x = x - ( y << 1 ); + y = yi; + theta -= *arctanptr++; /* Subtract angle */ + } + else + { + /* Rotate negative */ + yi = y - ( x << 1 ); + x = x + ( y << 1 ); + y = yi; + theta += *arctanptr++; /* Add angle */ + } + + i = 0; + do + { + if ( y < 0 ) + { + /* Rotate positive */ + yi = y + ( x >> i ); + x = x - ( y >> i ); + y = yi; + theta -= *arctanptr++; + } + else + { + /* Rotate negative */ + yi = y - ( x >> i ); + x = x + ( y >> i ); + y = yi; + theta += *arctanptr++; + } + } while ( ++i < FT_TRIG_MAX_ITERS ); + + /* round theta */ + if ( theta >= 0 ) + theta = FT_PAD_ROUND( theta, 32 ); + else + theta = -FT_PAD_ROUND( -theta, 32 ); + + vec->x = x; + vec->y = theta; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Cos( FT_Angle angle ) + { + FT_Vector v; + + + v.x = FT_TRIG_COSCALE >> 2; + v.y = 0; + ft_trig_pseudo_rotate( &v, angle ); + + return v.x / ( 1 << 12 ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Sin( FT_Angle angle ) + { + return FT_Cos( FT_ANGLE_PI2 - angle ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Tan( FT_Angle angle ) + { + FT_Vector v; + + + v.x = FT_TRIG_COSCALE >> 2; + v.y = 0; + ft_trig_pseudo_rotate( &v, angle ); + + return FT_DivFix( v.y, v.x ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Angle ) + FT_Atan2( FT_Fixed dx, + FT_Fixed dy ) + { + FT_Vector v; + + + if ( dx == 0 && dy == 0 ) + return 0; + + v.x = dx; + v.y = dy; + ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + return v.y; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Unit( FT_Vector* vec, + FT_Angle angle ) + { + vec->x = FT_TRIG_COSCALE >> 2; + vec->y = 0; + ft_trig_pseudo_rotate( vec, angle ); + vec->x >>= 12; + vec->y >>= 12; + } + + + /* these macros return 0 for positive numbers, + and -1 for negative ones */ +#define FT_SIGN_LONG( x ) ( (x) >> ( FT_SIZEOF_LONG * 8 - 1 ) ) +#define FT_SIGN_INT( x ) ( (x) >> ( FT_SIZEOF_INT * 8 - 1 ) ) +#define FT_SIGN_INT32( x ) ( (x) >> 31 ) +#define FT_SIGN_INT16( x ) ( (x) >> 15 ) + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Rotate( FT_Vector* vec, + FT_Angle angle ) + { + FT_Int shift; + FT_Vector v; + + + v.x = vec->x; + v.y = vec->y; + + if ( angle && ( v.x != 0 || v.y != 0 ) ) + { + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_rotate( &v, angle ); + v.x = ft_trig_downscale( v.x ); + v.y = ft_trig_downscale( v.y ); + + if ( shift > 0 ) + { + FT_Int32 half = (FT_Int32)1L << ( shift - 1 ); + + + vec->x = ( v.x + half + FT_SIGN_LONG( v.x ) ) >> shift; + vec->y = ( v.y + half + FT_SIGN_LONG( v.y ) ) >> shift; + } + else + { + shift = -shift; + vec->x = v.x << shift; + vec->y = v.y << shift; + } + } + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Vector_Length( FT_Vector* vec ) + { + FT_Int shift; + FT_Vector v; + + + v = *vec; + + /* handle trivial cases */ + if ( v.x == 0 ) + { + return ( v.y >= 0 ) ? v.y : -v.y; + } + else if ( v.y == 0 ) + { + return ( v.x >= 0 ) ? v.x : -v.x; + } + + /* general case */ + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + v.x = ft_trig_downscale( v.x ); + + if ( shift > 0 ) + return ( v.x + ( 1 << ( shift - 1 ) ) ) >> shift; + + return v.x << -shift; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Polarize( FT_Vector* vec, + FT_Fixed *length, + FT_Angle *angle ) + { + FT_Int shift; + FT_Vector v; + + + v = *vec; + + if ( v.x == 0 && v.y == 0 ) + return; + + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + v.x = ft_trig_downscale( v.x ); + + *length = ( shift >= 0 ) ? ( v.x >> shift ) : ( v.x << -shift ); + *angle = v.y; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_From_Polar( FT_Vector* vec, + FT_Fixed length, + FT_Angle angle ) + { + vec->x = length; + vec->y = 0; + + FT_Vector_Rotate( vec, angle ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Angle ) + FT_Angle_Diff( FT_Angle angle1, + FT_Angle angle2 ) + { + FT_Angle delta = angle2 - angle1; + + + delta %= FT_ANGLE_2PI; + if ( delta < 0 ) + delta += FT_ANGLE_2PI; + + if ( delta > FT_ANGLE_PI ) + delta -= FT_ANGLE_2PI; + + return delta; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/fttype1.c b/uppsrc/plugin/FT_fontsys/src/base/fttype1.c new file mode 100644 index 000000000..5333ebe2b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/fttype1.c @@ -0,0 +1,94 @@ +/***************************************************************************/ +/* */ +/* fttype1.c */ +/* */ +/* FreeType utility file for PS names support (body). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PS_Font_Info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_info ) + error = service->ps_get_font_info( face, afont_info ); + } + + return error; + } + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Has_PS_Glyph_Names( FT_Face face ) + { + FT_Int result = 0; + FT_Service_PsInfo service = NULL; + + + if ( face ) + { + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_has_glyph_names ) + result = service->ps_has_glyph_names( face ); + } + + return result; + } + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PS_Font_Private( FT_Face face, + PS_PrivateRec* afont_private ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_private ) + error = service->ps_get_font_private( face, afont_private ); + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftutil.c b/uppsrc/plugin/FT_fontsys/src/base/ftutil.c new file mode 100644 index 000000000..be0fb5c4e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftutil.c @@ -0,0 +1,501 @@ +/***************************************************************************/ +/* */ +/* ftutil.c */ +/* */ +/* FreeType utility file for memory and list management (body). */ +/* */ +/* Copyright 2002, 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H +#include FT_LIST_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_memory + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** M E M O R Y M A N A G E M E N T *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_alloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ) + { + FT_Error error; + FT_Pointer block = ft_mem_qalloc( memory, size, &error ); + + if ( !error && size > 0 ) + FT_MEM_ZERO( block, size ); + + *p_error = error; + return block; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_qalloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ) + { + FT_Error error = FT_Err_Ok; + FT_Pointer block = NULL; + + + if ( size > 0 ) + { + block = memory->alloc( memory, size ); + if ( block == NULL ) + error = FT_Err_Out_Of_Memory; + } + else if ( size < 0 ) + { + /* may help catch/prevent security issues */ + error = FT_Err_Invalid_Argument; + } + + *p_error = error; + return block; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_realloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ) + { + FT_Error error = FT_Err_Ok; + + block = ft_mem_qrealloc( memory, item_size, + cur_count, new_count, block, &error ); + if ( !error && new_count > cur_count ) + FT_MEM_ZERO( (char*)block + cur_count * item_size, + ( new_count - cur_count ) * item_size ); + + *p_error = error; + return block; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_qrealloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ) + { + FT_Error error = FT_Err_Ok; + + + /* Note that we now accept `item_size == 0' as a valid parameter, in + * order to cover very weird cases where an ALLOC_MULT macro would be + * called. + */ + if ( cur_count < 0 || new_count < 0 || item_size < 0 ) + { + /* may help catch/prevent nasty security issues */ + error = FT_Err_Invalid_Argument; + } + else if ( new_count == 0 || item_size == 0 ) + { + ft_mem_free( memory, block ); + block = NULL; + } + else if ( new_count > FT_INT_MAX/item_size ) + { + error = FT_Err_Array_Too_Large; + } + else if ( cur_count == 0 ) + { + FT_ASSERT( block == NULL ); + + block = ft_mem_alloc( memory, new_count*item_size, &error ); + } + else + { + FT_Pointer block2; + FT_Long cur_size = cur_count*item_size; + FT_Long new_size = new_count*item_size; + + + block2 = memory->realloc( memory, cur_size, new_size, block ); + if ( block2 == NULL ) + error = FT_Err_Out_Of_Memory; + else + block = block2; + } + + *p_error = error; + return block; + } + + + FT_BASE_DEF( void ) + ft_mem_free( FT_Memory memory, + const void *P ) + { + if ( P ) + memory->free( memory, (void*)P ); + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_dup( FT_Memory memory, + const void* address, + FT_ULong size, + FT_Error *p_error ) + { + FT_Error error; + FT_Pointer p = ft_mem_qalloc( memory, size, &error ); + + + if ( !error && address ) + ft_memcpy( p, address, size ); + + *p_error = error; + return p; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_strdup( FT_Memory memory, + const char* str, + FT_Error *p_error ) + { + FT_ULong len = str ? (FT_ULong)ft_strlen( str ) + 1 + : 0; + + + return ft_mem_dup( memory, str, len, p_error ); + } + + + FT_BASE_DEF( FT_Int ) + ft_mem_strcpyn( char* dst, + const char* src, + FT_ULong size ) + { + while ( size > 1 && *src != 0 ) + { + *dst++ = *src++; + size--; + } + + *dst = 0; /* always zero-terminate */ + + return *src != 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** D O U B L Y L I N K E D L I S T S *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + +#undef FT_COMPONENT +#define FT_COMPONENT trace_list + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( FT_ListNode ) + FT_List_Find( FT_List list, + void* data ) + { + FT_ListNode cur; + + + cur = list->head; + while ( cur ) + { + if ( cur->data == data ) + return cur; + + cur = cur->next; + } + + return (FT_ListNode)0; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Add( FT_List list, + FT_ListNode node ) + { + FT_ListNode before = list->tail; + + + node->next = 0; + node->prev = before; + + if ( before ) + before->next = node; + else + list->head = node; + + list->tail = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Insert( FT_List list, + FT_ListNode node ) + { + FT_ListNode after = list->head; + + + node->next = after; + node->prev = 0; + + if ( !after ) + list->tail = node; + else + after->prev = node; + + list->head = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Remove( FT_List list, + FT_ListNode node ) + { + FT_ListNode before, after; + + + before = node->prev; + after = node->next; + + if ( before ) + before->next = after; + else + list->head = after; + + if ( after ) + after->prev = before; + else + list->tail = before; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Up( FT_List list, + FT_ListNode node ) + { + FT_ListNode before, after; + + + before = node->prev; + after = node->next; + + /* check whether we are already on top of the list */ + if ( !before ) + return; + + before->next = after; + + if ( after ) + after->prev = before; + else + list->tail = before; + + node->prev = 0; + node->next = list->head; + list->head->prev = node; + list->head = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_List_Iterate( FT_List list, + FT_List_Iterator iterator, + void* user ) + { + FT_ListNode cur = list->head; + FT_Error error = FT_Err_Ok; + + + while ( cur ) + { + FT_ListNode next = cur->next; + + + error = iterator( cur, user ); + if ( error ) + break; + + cur = next; + } + + return error; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Finalize( FT_List list, + FT_List_Destructor destroy, + FT_Memory memory, + void* user ) + { + FT_ListNode cur; + + + cur = list->head; + while ( cur ) + { + FT_ListNode next = cur->next; + void* data = cur->data; + + + if ( destroy ) + destroy( memory, data, user ); + + FT_FREE( cur ); + cur = next; + } + + list->head = 0; + list->tail = 0; + } + + + FT_BASE_DEF( FT_UInt32 ) + ft_highpow2( FT_UInt32 value ) + { + FT_UInt32 value2; + + + /* + * We simply clear the lowest bit in each iteration. When + * we reach 0, we know that the previous value was our result. + */ + for ( ;; ) + { + value2 = value & (value - 1); /* clear lowest bit */ + if ( value2 == 0 ) + break; + + value = value2; + } + return value; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE_DEF( FT_Error ) + FT_Alloc( FT_Memory memory, + FT_Long size, + void* *P ) + { + FT_Error error; + + + (void)FT_ALLOC( *P, size ); + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_QAlloc( FT_Memory memory, + FT_Long size, + void* *p ) + { + FT_Error error; + + + (void)FT_QALLOC( *p, size ); + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Realloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *P ) + { + FT_Error error; + + + (void)FT_REALLOC( *P, current, size ); + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_QRealloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *p ) + { + FT_Error error; + + + (void)FT_QREALLOC( *p, current, size ); + return error; + } + + + FT_BASE_DEF( void ) + FT_Free( FT_Memory memory, + void* *P ) + { + if ( *P ) + FT_MEM_FREE( *P ); + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftwinfnt.c b/uppsrc/plugin/FT_fontsys/src/base/ftwinfnt.c new file mode 100644 index 000000000..abe0b1206 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftwinfnt.c @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* ftwinfnt.c */ +/* */ +/* FreeType API for accessing Windows FNT specific info (body). */ +/* */ +/* Copyright 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_WINFONTS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_WINFNT_H + + + /* documentation is in ftwinfnt.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_WinFNT_Header( FT_Face face, + FT_WinFNT_HeaderRec *header ) + { + FT_Service_WinFnt service; + FT_Error error; + + + error = FT_Err_Invalid_Argument; + + if ( face != NULL ) + { + FT_FACE_LOOKUP_SERVICE( face, service, WINFNT ); + + if ( service != NULL ) + { + error = service->get_header( face, header ); + } + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/base/ftxf86.c b/uppsrc/plugin/FT_fontsys/src/base/ftxf86.c new file mode 100644 index 000000000..d57a16f9a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/base/ftxf86.c @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* ftxf86.c */ +/* */ +/* FreeType utility file for X11 support (body). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_XFREE86_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_XFREE86_NAME_H + + + /* documentation is in ftxf86.h */ + + FT_EXPORT_DEF( const char* ) + FT_Get_X11_Font_Format( FT_Face face ) + { + const char* result = NULL; + + + if ( face ) + FT_FACE_FIND_SERVICE( face, result, XF86_NAME ); + + return result; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bdf/bdf.c b/uppsrc/plugin/FT_fontsys/src/bdf/bdf.c new file mode 100644 index 000000000..f33d3d012 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bdf/bdf.c @@ -0,0 +1,34 @@ +/* bdf.c + + FreeType font driver for bdf files + + Copyright (C) 2001, 2002 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "bdflib.c" +#include "bdfdrivr.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bdf/bdf.h b/uppsrc/plugin/FT_fontsys/src/bdf/bdf.h new file mode 100644 index 000000000..420a5ed3e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bdf/bdf.h @@ -0,0 +1,295 @@ +/* + * Copyright 2000 Computing Research Labs, New Mexico State University + * Copyright 2001, 2002, 2003, 2004 Francesco Zappa Nardelli + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef __BDF_H__ +#define __BDF_H__ + + +/* + * Based on bdf.h,v 1.16 2000/03/16 20:08:51 mleisher + */ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + +/* Imported from bdfP.h */ + +#define _bdf_glyph_modified( map, e ) \ + ( (map)[(e) >> 5] & ( 1 << ( (e) & 31 ) ) ) +#define _bdf_set_glyph_modified( map, e ) \ + ( (map)[(e) >> 5] |= ( 1 << ( (e) & 31 ) ) ) +#define _bdf_clear_glyph_modified( map, e ) \ + ( (map)[(e) >> 5] &= ~( 1 << ( (e) & 31 ) ) ) + +/* end of bdfP.h */ + + + /*************************************************************************/ + /* */ + /* BDF font options macros and types. */ + /* */ + /*************************************************************************/ + + +#define BDF_CORRECT_METRICS 0x01 /* Correct invalid metrics when loading. */ +#define BDF_KEEP_COMMENTS 0x02 /* Preserve the font comments. */ +#define BDF_KEEP_UNENCODED 0x04 /* Keep the unencoded glyphs. */ +#define BDF_PROPORTIONAL 0x08 /* Font has proportional spacing. */ +#define BDF_MONOWIDTH 0x10 /* Font has mono width. */ +#define BDF_CHARCELL 0x20 /* Font has charcell spacing. */ + +#define BDF_ALL_SPACING ( BDF_PROPORTIONAL | \ + BDF_MONOWIDTH | \ + BDF_CHARCELL ) + +#define BDF_DEFAULT_LOAD_OPTIONS ( BDF_CORRECT_METRICS | \ + BDF_KEEP_COMMENTS | \ + BDF_KEEP_UNENCODED | \ + BDF_PROPORTIONAL ) + + + typedef struct bdf_options_t_ + { + int correct_metrics; + int keep_unencoded; + int keep_comments; + int font_spacing; + + } bdf_options_t; + + + /* Callback function type for unknown configuration options. */ + typedef int + (*bdf_options_callback_t)( bdf_options_t* opts, + char** params, + unsigned long nparams, + void* client_data ); + + + /*************************************************************************/ + /* */ + /* BDF font property macros and types. */ + /* */ + /*************************************************************************/ + + +#define BDF_ATOM 1 +#define BDF_INTEGER 2 +#define BDF_CARDINAL 3 + + + /* This structure represents a particular property of a font. */ + /* There are a set of defaults and each font has their own. */ + typedef struct bdf_property_t_ + { + char* name; /* Name of the property. */ + int format; /* Format of the property. */ + int builtin; /* A builtin property. */ + union + { + char* atom; + long l; + unsigned long ul; + + } value; /* Value of the property. */ + + } bdf_property_t; + + + /*************************************************************************/ + /* */ + /* BDF font metric and glyph types. */ + /* */ + /*************************************************************************/ + + + typedef struct bdf_bbx_t_ + { + unsigned short width; + unsigned short height; + + short x_offset; + short y_offset; + + short ascent; + short descent; + + } bdf_bbx_t; + + + typedef struct bdf_glyph_t_ + { + char* name; /* Glyph name. */ + long encoding; /* Glyph encoding. */ + unsigned short swidth; /* Scalable width. */ + unsigned short dwidth; /* Device width. */ + bdf_bbx_t bbx; /* Glyph bounding box. */ + unsigned char* bitmap; /* Glyph bitmap. */ + unsigned long bpr; /* Number of bytes used per row. */ + unsigned short bytes; /* Number of bytes used for the bitmap. */ + + } bdf_glyph_t; + + + typedef struct _hashnode_ + { + const char* key; + size_t data; + + } _hashnode, *hashnode; + + + typedef struct hashtable_ + { + int limit; + int size; + int used; + hashnode* table; + + } hashtable; + + + typedef struct bdf_glyphlist_t_ + { + unsigned short pad; /* Pad to 4-byte boundary. */ + unsigned short bpp; /* Bits per pixel. */ + long start; /* Beginning encoding value of glyphs. */ + long end; /* Ending encoding value of glyphs. */ + bdf_glyph_t* glyphs; /* Glyphs themselves. */ + unsigned long glyphs_size; /* Glyph structures allocated. */ + unsigned long glyphs_used; /* Glyph structures used. */ + bdf_bbx_t bbx; /* Overall bounding box of glyphs. */ + + } bdf_glyphlist_t; + + + typedef struct bdf_font_t_ + { + char* name; /* Name of the font. */ + bdf_bbx_t bbx; /* Font bounding box. */ + + long point_size; /* Point size of the font. */ + unsigned long resolution_x; /* Font horizontal resolution. */ + unsigned long resolution_y; /* Font vertical resolution. */ + + int spacing; /* Font spacing value. */ + + unsigned short monowidth; /* Logical width for monowidth font. */ + + long default_char; /* Encoding of the default glyph. */ + + long font_ascent; /* Font ascent. */ + long font_descent; /* Font descent. */ + + unsigned long glyphs_size; /* Glyph structures allocated. */ + unsigned long glyphs_used; /* Glyph structures used. */ + bdf_glyph_t* glyphs; /* Glyphs themselves. */ + + unsigned long unencoded_size; /* Unencoded glyph struct. allocated. */ + unsigned long unencoded_used; /* Unencoded glyph struct. used. */ + bdf_glyph_t* unencoded; /* Unencoded glyphs themselves. */ + + unsigned long props_size; /* Font properties allocated. */ + unsigned long props_used; /* Font properties used. */ + bdf_property_t* props; /* Font properties themselves. */ + + char* comments; /* Font comments. */ + unsigned long comments_len; /* Length of comment string. */ + + bdf_glyphlist_t overflow; /* Storage used for glyph insertion. */ + + void* internal; /* Internal data for the font. */ + + unsigned long nmod[2048]; /* Bitmap indicating modified glyphs. */ + unsigned long umod[2048]; /* Bitmap indicating modified */ + /* unencoded glyphs. */ + unsigned short modified; /* Boolean indicating font modified. */ + unsigned short bpp; /* Bits per pixel. */ + + FT_Memory memory; + + bdf_property_t* user_props; + unsigned long nuser_props; + hashtable proptbl; + + } bdf_font_t; + + + /*************************************************************************/ + /* */ + /* Types for load/save callbacks. */ + /* */ + /*************************************************************************/ + + + /* Error codes. */ +#define BDF_MISSING_START -1 +#define BDF_MISSING_FONTNAME -2 +#define BDF_MISSING_SIZE -3 +#define BDF_MISSING_CHARS -4 +#define BDF_MISSING_STARTCHAR -5 +#define BDF_MISSING_ENCODING -6 +#define BDF_MISSING_BBX -7 + +#define BDF_OUT_OF_MEMORY -20 + +#define BDF_INVALID_LINE -100 + + + /*************************************************************************/ + /* */ + /* BDF font API. */ + /* */ + /*************************************************************************/ + + FT_LOCAL( FT_Error ) + bdf_load_font( FT_Stream stream, + FT_Memory memory, + bdf_options_t* opts, + bdf_font_t* *font ); + + FT_LOCAL( void ) + bdf_free_font( bdf_font_t* font ); + + FT_LOCAL( bdf_property_t * ) + bdf_get_property( char* name, + bdf_font_t* font ); + + FT_LOCAL( bdf_property_t * ) + bdf_get_font_property( bdf_font_t* font, + const char* name ); + + +FT_END_HEADER + + +#endif /* __BDF_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.c b/uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.c new file mode 100644 index 000000000..e3837b231 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.c @@ -0,0 +1,881 @@ +/* bdfdrivr.c + + FreeType font driver for bdf files + + Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#include <freetype/ft2build.h> + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H +#include FT_BDF_H +#include FT_TRUETYPE_IDS_H + +#include FT_SERVICE_BDF_H +#include FT_SERVICE_XFREE86_NAME_H + +#include "bdf.h" +#include "bdfdrivr.h" + +#include "bdferror.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_bdfdriver + + + typedef struct BDF_CMapRec_ + { + FT_CMapRec cmap; + FT_ULong num_encodings; /* ftobjs.h: FT_CMap->clazz->size */ + BDF_encoding_el* encodings; + + } BDF_CMapRec, *BDF_CMap; + + + FT_CALLBACK_DEF( FT_Error ) + bdf_cmap_init( FT_CMap bdfcmap, + FT_Pointer init_data ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + BDF_Face face = (BDF_Face)FT_CMAP_FACE( cmap ); + FT_UNUSED( init_data ); + + + cmap->num_encodings = face->bdffont->glyphs_used; + cmap->encodings = face->en_table; + + return BDF_Err_Ok; + } + + + FT_CALLBACK_DEF( void ) + bdf_cmap_done( FT_CMap bdfcmap ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + + + cmap->encodings = NULL; + cmap->num_encodings = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + bdf_cmap_char_index( FT_CMap bdfcmap, + FT_UInt32 charcode ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + BDF_encoding_el* encodings = cmap->encodings; + FT_ULong min, max, mid; /* num_encodings */ + FT_UShort result = 0; /* encodings->glyph */ + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + /* increase glyph index by 1 -- */ + /* we reserve slot 0 for the undefined glyph */ + result = encodings[mid].glyph + 1; + break; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt ) + bdf_cmap_char_next( FT_CMap bdfcmap, + FT_UInt32 *acharcode ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + BDF_encoding_el* encodings = cmap->encodings; + FT_ULong min, max, mid; /* num_encodings */ + FT_UShort result = 0; /* encodings->glyph */ + FT_ULong charcode = *acharcode + 1; + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; /* same as BDF_encoding_el.enc */ + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + /* increase glyph index by 1 -- */ + /* we reserve slot 0 for the undefined glyph */ + result = encodings[mid].glyph + 1; + goto Exit; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + charcode = 0; + if ( min < cmap->num_encodings ) + { + charcode = encodings[min].enc; + result = encodings[min].glyph + 1; + } + + Exit: + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "bdf_cmap_char_next: charcode 0x%x > 32bit API" )); + *acharcode = 0; + /* XXX: result should be changed to indicate an overflow error */ + } + else + *acharcode = (FT_UInt32)charcode; + return result; + } + + + FT_CALLBACK_TABLE_DEF + const FT_CMap_ClassRec bdf_cmap_class = + { + sizeof ( BDF_CMapRec ), + bdf_cmap_init, + bdf_cmap_done, + bdf_cmap_char_index, + bdf_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + static FT_Error + bdf_interpret_style( BDF_Face bdf ) + { + FT_Error error = BDF_Err_Ok; + FT_Face face = FT_FACE( bdf ); + FT_Memory memory = face->memory; + bdf_font_t* font = bdf->bdffont; + bdf_property_t* prop; + + char* strings[4] = { NULL, NULL, NULL, NULL }; + size_t nn, len, lengths[4]; + + + face->style_flags = 0; + + prop = bdf_get_font_property( font, (char *)"SLANT" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && + ( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' || + *(prop->value.atom) == 'I' || *(prop->value.atom) == 'i' ) ) + { + face->style_flags |= FT_STYLE_FLAG_ITALIC; + strings[2] = ( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' ) + ? (char *)"Oblique" + : (char *)"Italic"; + } + + prop = bdf_get_font_property( font, (char *)"WEIGHT_NAME" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && + ( *(prop->value.atom) == 'B' || *(prop->value.atom) == 'b' ) ) + { + face->style_flags |= FT_STYLE_FLAG_BOLD; + strings[1] = (char *)"Bold"; + } + + prop = bdf_get_font_property( font, (char *)"SETWIDTH_NAME" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[3] = (char *)(prop->value.atom); + + prop = bdf_get_font_property( font, (char *)"ADD_STYLE_NAME" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[0] = (char *)(prop->value.atom); + + len = 0; + + for ( len = 0, nn = 0; nn < 4; nn++ ) + { + lengths[nn] = 0; + if ( strings[nn] ) + { + lengths[nn] = ft_strlen( strings[nn] ); + len += lengths[nn] + 1; + } + } + + if ( len == 0 ) + { + strings[0] = (char *)"Regular"; + lengths[0] = ft_strlen( strings[0] ); + len = lengths[0] + 1; + } + + { + char* s; + + + if ( FT_ALLOC( face->style_name, len ) ) + return error; + + s = face->style_name; + + for ( nn = 0; nn < 4; nn++ ) + { + char* src = strings[nn]; + + + len = lengths[nn]; + + if ( src == NULL ) + continue; + + /* separate elements with a space */ + if ( s != face->style_name ) + *s++ = ' '; + + ft_memcpy( s, src, len ); + + /* need to convert spaces to dashes for */ + /* add_style_name and setwidth_name */ + if ( nn == 0 || nn == 3 ) + { + size_t mm; + + + for ( mm = 0; mm < len; mm++ ) + if ( s[mm] == ' ' ) + s[mm] = '-'; + } + + s += len; + } + *s = 0; + } + + return error; + } + + + FT_CALLBACK_DEF( void ) + BDF_Face_Done( FT_Face bdfface ) /* BDF_Face */ + { + BDF_Face face = (BDF_Face)bdfface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + bdf_free_font( face->bdffont ); + + FT_FREE( face->en_table ); + + FT_FREE( face->charset_encoding ); + FT_FREE( face->charset_registry ); + FT_FREE( bdfface->family_name ); + FT_FREE( bdfface->style_name ); + + FT_FREE( bdfface->available_sizes ); + + FT_FREE( face->bdffont ); + + FT_TRACE4(( "BDF_Face_Done: done face\n" )); + } + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Face_Init( FT_Stream stream, + FT_Face bdfface, /* BDF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error = BDF_Err_Ok; + BDF_Face face = (BDF_Face)bdfface; + FT_Memory memory = FT_FACE_MEMORY( face ); + + bdf_font_t* font = NULL; + bdf_options_t options; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( face_index ); + + + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + options.correct_metrics = 1; /* FZ XXX: options semantics */ + options.keep_unencoded = 1; + options.keep_comments = 0; + options.font_spacing = BDF_PROPORTIONAL; + + error = bdf_load_font( stream, memory, &options, &font ); + if ( error == BDF_Err_Missing_Startfont_Field ) + { + FT_TRACE2(( "[not a valid BDF file]\n" )); + goto Fail; + } + else if ( error ) + goto Exit; + + /* we have a bdf font: let's construct the face object */ + face->bdffont = font; + { + bdf_property_t* prop = NULL; + + + FT_TRACE4(( "number of glyphs: %d (%d)\n", + font->glyphs_size, + font->glyphs_used )); + FT_TRACE4(( "number of unencoded glyphs: %d (%d)\n", + font->unencoded_size, + font->unencoded_used )); + + bdfface->num_faces = 1; + bdfface->face_index = 0; + bdfface->face_flags = FT_FACE_FLAG_FIXED_SIZES | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_FAST_GLYPHS; + + prop = bdf_get_font_property( font, "SPACING" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && + ( *(prop->value.atom) == 'M' || *(prop->value.atom) == 'm' || + *(prop->value.atom) == 'C' || *(prop->value.atom) == 'c' ) ) + bdfface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* FZ XXX: TO DO: FT_FACE_FLAGS_VERTICAL */ + /* FZ XXX: I need a font to implement this */ + + prop = bdf_get_font_property( font, "FAMILY_NAME" ); + if ( prop && prop->value.atom ) + { + if ( FT_STRDUP( bdfface->family_name, prop->value.atom ) ) + goto Exit; + } + else + bdfface->family_name = 0; + + if ( ( error = bdf_interpret_style( face ) ) != 0 ) + goto Exit; + + /* the number of glyphs (with one slot for the undefined glyph */ + /* at position 0 and all unencoded glyphs) */ + bdfface->num_glyphs = font->glyphs_size + 1; + + bdfface->num_fixed_sizes = 1; + if ( FT_NEW_ARRAY( bdfface->available_sizes, 1 ) ) + goto Exit; + + { + FT_Bitmap_Size* bsize = bdfface->available_sizes; + FT_Short resolution_x = 0, resolution_y = 0; + + + FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) ); + + bsize->height = (FT_Short)( font->font_ascent + font->font_descent ); + + prop = bdf_get_font_property( font, "AVERAGE_WIDTH" ); + if ( prop ) + bsize->width = (FT_Short)( ( prop->value.l + 5 ) / 10 ); + else + bsize->width = (FT_Short)( bsize->height * 2/3 ); + + prop = bdf_get_font_property( font, "POINT_SIZE" ); + if ( prop ) + /* convert from 722.7 decipoints to 72 points per inch */ + bsize->size = + (FT_Pos)( ( prop->value.l * 64 * 7200 + 36135L ) / 72270L ); + else + bsize->size = bsize->width << 6; + + prop = bdf_get_font_property( font, "PIXEL_SIZE" ); + if ( prop ) + bsize->y_ppem = (FT_Short)prop->value.l << 6; + + prop = bdf_get_font_property( font, "RESOLUTION_X" ); + if ( prop ) + resolution_x = (FT_Short)prop->value.l; + + prop = bdf_get_font_property( font, "RESOLUTION_Y" ); + if ( prop ) + resolution_y = (FT_Short)prop->value.l; + + if ( bsize->y_ppem == 0 ) + { + bsize->y_ppem = bsize->size; + if ( resolution_y ) + bsize->y_ppem = bsize->y_ppem * resolution_y / 72; + } + if ( resolution_x && resolution_y ) + bsize->x_ppem = bsize->y_ppem * resolution_x / resolution_y; + else + bsize->x_ppem = bsize->y_ppem; + } + + /* encoding table */ + { + bdf_glyph_t* cur = font->glyphs; + unsigned long n; + + + if ( FT_NEW_ARRAY( face->en_table, font->glyphs_size ) ) + goto Exit; + + face->default_glyph = 0; + for ( n = 0; n < font->glyphs_size; n++ ) + { + (face->en_table[n]).enc = cur[n].encoding; + FT_TRACE4(( "idx %d, val 0x%lX\n", n, cur[n].encoding )); + (face->en_table[n]).glyph = (FT_Short)n; + + if ( cur[n].encoding == font->default_char ) + { + if ( n < FT_UINT_MAX ) + face->default_glyph = (FT_UInt)n; + else + FT_TRACE1(( "idx %d is too large for this system\n", n )); + } + } + } + + /* charmaps */ + { + bdf_property_t *charset_registry = 0, *charset_encoding = 0; + FT_Bool unicode_charmap = 0; + + + charset_registry = + bdf_get_font_property( font, "CHARSET_REGISTRY" ); + charset_encoding = + bdf_get_font_property( font, "CHARSET_ENCODING" ); + if ( charset_registry && charset_encoding ) + { + if ( charset_registry->format == BDF_ATOM && + charset_encoding->format == BDF_ATOM && + charset_registry->value.atom && + charset_encoding->value.atom ) + { + const char* s; + + + if ( FT_STRDUP( face->charset_encoding, + charset_encoding->value.atom ) || + FT_STRDUP( face->charset_registry, + charset_registry->value.atom ) ) + goto Exit; + + /* Uh, oh, compare first letters manually to avoid dependency */ + /* on locales. */ + s = face->charset_registry; + if ( ( s[0] == 'i' || s[0] == 'I' ) && + ( s[1] == 's' || s[1] == 'S' ) && + ( s[2] == 'o' || s[2] == 'O' ) ) + { + s += 3; + if ( !ft_strcmp( s, "10646" ) || + ( !ft_strcmp( s, "8859" ) && + !ft_strcmp( face->charset_encoding, "1" ) ) ) + unicode_charmap = 1; + } + + { + FT_CharMapRec charmap; + + + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_NONE; + /* initial platform/encoding should indicate unset status? */ + charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; + charmap.encoding_id = TT_APPLE_ID_DEFAULT; + + if ( unicode_charmap ) + { + charmap.encoding = FT_ENCODING_UNICODE; + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + } + + error = FT_CMap_New( &bdf_cmap_class, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( bdfface->num_charmaps ) + bdfface->charmap = bdfface->charmaps[0]; +#endif + } + + goto Exit; + } + } + + /* otherwise assume Adobe standard encoding */ + + { + FT_CharMapRec charmap; + + + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_ADOBE_STANDARD; + charmap.platform_id = TT_PLATFORM_ADOBE; + charmap.encoding_id = TT_ADOBE_ID_STANDARD; + + error = FT_CMap_New( &bdf_cmap_class, NULL, &charmap, NULL ); + + /* Select default charmap */ + if ( bdfface->num_charmaps ) + bdfface->charmap = bdfface->charmaps[0]; + } + } + } + + Exit: + return error; + + Fail: + BDF_Face_Done( bdfface ); + return BDF_Err_Unknown_File_Format; + } + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Size_Select( FT_Size size, + FT_ULong strike_index ) + { + bdf_font_t* bdffont = ( (BDF_Face)size->face )->bdffont; + + + FT_Select_Metrics( size->face, strike_index ); + + size->metrics.ascender = bdffont->font_ascent << 6; + size->metrics.descender = -bdffont->font_descent << 6; + size->metrics.max_advance = bdffont->bbx.width << 6; + + return BDF_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Size_Request( FT_Size size, + FT_Size_Request req ) + { + FT_Face face = size->face; + FT_Bitmap_Size* bsize = face->available_sizes; + bdf_font_t* bdffont = ( (BDF_Face)face )->bdffont; + FT_Error error = BDF_Err_Invalid_Pixel_Size; + FT_Long height; + + + height = FT_REQUEST_HEIGHT( req ); + height = ( height + 32 ) >> 6; + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) ) + error = BDF_Err_Ok; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + if ( height == ( bdffont->font_ascent + + bdffont->font_descent ) ) + error = BDF_Err_Ok; + break; + + default: + error = BDF_Err_Unimplemented_Feature; + break; + } + + if ( error ) + return error; + else + return BDF_Size_Select( size, 0 ); + } + + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Glyph_Load( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + BDF_Face bdf = (BDF_Face)FT_SIZE_FACE( size ); + FT_Face face = FT_FACE( bdf ); + FT_Error error = BDF_Err_Ok; + FT_Bitmap* bitmap = &slot->bitmap; + bdf_glyph_t glyph; + int bpp = bdf->bdffont->bpp; + + FT_UNUSED( load_flags ); + + + if ( !face || glyph_index >= (FT_UInt)face->num_glyphs ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + /* index 0 is the undefined glyph */ + if ( glyph_index == 0 ) + glyph_index = bdf->default_glyph; + else + glyph_index--; + + /* slot, bitmap => freetype, glyph => bdflib */ + glyph = bdf->bdffont->glyphs[glyph_index]; + + bitmap->rows = glyph.bbx.height; + bitmap->width = glyph.bbx.width; + if ( glyph.bpr > INT_MAX ) + FT_TRACE1(( "BDF_Glyph_Load: too large pitch %d is truncated\n", + glyph.bpr )); + bitmap->pitch = (int)glyph.bpr; /* same as FT_Bitmap.pitch */ + + /* note: we don't allocate a new array to hold the bitmap; */ + /* we can simply point to it */ + ft_glyphslot_set_bitmap( slot, glyph.bitmap ); + + switch ( bpp ) + { + case 1: + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + break; + case 2: + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY2; + break; + case 4: + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY4; + break; + case 8: + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->num_grays = 256; + break; + } + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = glyph.bbx.x_offset; + slot->bitmap_top = glyph.bbx.ascent; + + slot->metrics.horiAdvance = glyph.dwidth << 6; + slot->metrics.horiBearingX = glyph.bbx.x_offset << 6; + slot->metrics.horiBearingY = glyph.bbx.ascent << 6; + slot->metrics.width = bitmap->width << 6; + slot->metrics.height = bitmap->rows << 6; + + /* + * XXX DWIDTH1 and VVECTOR should be parsed and + * used here, provided such fonts do exist. + */ + ft_synthesize_vertical_metrics( &slot->metrics, + bdf->bdffont->bbx.height << 6 ); + + Exit: + return error; + } + + + /* + * + * BDF SERVICE + * + */ + + static FT_Error + bdf_get_bdf_property( BDF_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + bdf_property_t* prop; + + + FT_ASSERT( face && face->bdffont ); + + prop = bdf_get_font_property( face->bdffont, prop_name ); + if ( prop ) + { + switch ( prop->format ) + { + case BDF_ATOM: + aproperty->type = BDF_PROPERTY_TYPE_ATOM; + aproperty->u.atom = prop->value.atom; + break; + + case BDF_INTEGER: + if ( prop->value.l > 0x7FFFFFFFL || prop->value.l < ( -1 - 0x7FFFFFFFL ) ) + { + FT_TRACE1(( "bdf_get_bdf_property: " )); + FT_TRACE1(( "too large integer 0x%x is truncated\n" )); + } + aproperty->type = BDF_PROPERTY_TYPE_INTEGER; + aproperty->u.integer = (FT_Int32)prop->value.l; + break; + + case BDF_CARDINAL: + if ( prop->value.ul > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "bdf_get_bdf_property: " )); + FT_TRACE1(( "too large cardinal 0x%x is truncated\n" )); + } + aproperty->type = BDF_PROPERTY_TYPE_CARDINAL; + aproperty->u.cardinal = (FT_UInt32)prop->value.ul; + break; + + default: + goto Fail; + } + return 0; + } + + Fail: + return BDF_Err_Invalid_Argument; + } + + + static FT_Error + bdf_get_charset_id( BDF_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + *acharset_encoding = face->charset_encoding; + *acharset_registry = face->charset_registry; + + return 0; + } + + + static const FT_Service_BDFRec bdf_service_bdf = + { + (FT_BDF_GetCharsetIdFunc)bdf_get_charset_id, + (FT_BDF_GetPropertyFunc) bdf_get_bdf_property + }; + + + /* + * + * SERVICES LIST + * + */ + + static const FT_ServiceDescRec bdf_services[] = + { + { FT_SERVICE_ID_BDF, &bdf_service_bdf }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_BDF }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + bdf_driver_requester( FT_Module module, + const char* name ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( bdf_services, name ); + } + + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec bdf_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_NO_OUTLINES, + sizeof ( FT_DriverRec ), + + "bdf", + 0x10000L, + 0x20000L, + + 0, + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) bdf_driver_requester + }, + + sizeof ( BDF_FaceRec ), + sizeof ( FT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + BDF_Face_Init, + BDF_Face_Done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + 0, /* FT_Slot_InitFunc */ + 0, /* FT_Slot_DoneFunc */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + BDF_Glyph_Load, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + + BDF_Size_Request, + BDF_Size_Select + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.h b/uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.h new file mode 100644 index 000000000..6fde8a2b0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bdf/bdfdrivr.h @@ -0,0 +1,80 @@ +/* bdfdrivr.h + + FreeType font driver for bdf fonts + + Copyright (C) 2001, 2002, 2003, 2004 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __BDFDRIVR_H__ +#define __BDFDRIVR_H__ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + +#include "bdf.h" + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + typedef struct BDF_encoding_el_ + { + FT_ULong enc; + FT_UShort glyph; + + } BDF_encoding_el; + + + typedef struct BDF_FaceRec_ + { + FT_FaceRec root; + + char* charset_encoding; + char* charset_registry; + + bdf_font_t* bdffont; + + BDF_encoding_el* en_table; + + FT_CharMap charmap_handle; + FT_CharMapRec charmap; /* a single charmap per face */ + + FT_UInt default_glyph; + + } BDF_FaceRec, *BDF_Face; + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) bdf_driver_class; + + +FT_END_HEADER + + +#endif /* __BDFDRIVR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bdf/bdferror.h b/uppsrc/plugin/FT_fontsys/src/bdf/bdferror.h new file mode 100644 index 000000000..b27fa333b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bdf/bdferror.h @@ -0,0 +1,44 @@ +/* + * Copyright 2001, 2002 Francesco Zappa Nardelli + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + /*************************************************************************/ + /* */ + /* This file is used to define the BDF error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __BDFERROR_H__ +#define __BDFERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX BDF_Err_ +#define FT_ERR_BASE FT_Mod_Err_BDF + +#include FT_ERRORS_H + +#endif /* __BDFERROR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bdf/bdflib.c b/uppsrc/plugin/FT_fontsys/src/bdf/bdflib.c new file mode 100644 index 000000000..eff5d2347 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bdf/bdflib.c @@ -0,0 +1,2543 @@ +/* + * Copyright 2000 Computing Research Labs, New Mexico State University + * Copyright 2001-2011 + * Francesco Zappa Nardelli + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + /*************************************************************************/ + /* */ + /* This file is based on bdf.c,v 1.22 2000/03/16 20:08:50 */ + /* */ + /* taken from Mark Leisher's xmbdfed package */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> + +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H + +#include "bdf.h" +#include "bdferror.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_bdflib + + + /*************************************************************************/ + /* */ + /* Default BDF font options. */ + /* */ + /*************************************************************************/ + + + static const bdf_options_t _bdf_opts = + { + 1, /* Correct metrics. */ + 1, /* Preserve unencoded glyphs. */ + 0, /* Preserve comments. */ + BDF_PROPORTIONAL /* Default spacing. */ + }; + + + /*************************************************************************/ + /* */ + /* Builtin BDF font properties. */ + /* */ + /*************************************************************************/ + + /* List of most properties that might appear in a font. Doesn't include */ + /* the RAW_* and AXIS_* properties in X11R6 polymorphic fonts. */ + + static const bdf_property_t _bdf_properties[] = + { + { (char *)"ADD_STYLE_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"AVERAGE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"AVG_CAPITAL_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"CAP_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"CHARSET_COLLECTIONS", BDF_ATOM, 1, { 0 } }, + { (char *)"CHARSET_ENCODING", BDF_ATOM, 1, { 0 } }, + { (char *)"CHARSET_REGISTRY", BDF_ATOM, 1, { 0 } }, + { (char *)"COMMENT", BDF_ATOM, 1, { 0 } }, + { (char *)"COPYRIGHT", BDF_ATOM, 1, { 0 } }, + { (char *)"DEFAULT_CHAR", BDF_CARDINAL, 1, { 0 } }, + { (char *)"DESTINATION", BDF_CARDINAL, 1, { 0 } }, + { (char *)"DEVICE_FONT_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"END_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"FACE_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"FAMILY_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"FIGURE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"FONT", BDF_ATOM, 1, { 0 } }, + { (char *)"FONTNAME_REGISTRY", BDF_ATOM, 1, { 0 } }, + { (char *)"FONT_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"FONT_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"FOUNDRY", BDF_ATOM, 1, { 0 } }, + { (char *)"FULL_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"ITALIC_ANGLE", BDF_INTEGER, 1, { 0 } }, + { (char *)"MAX_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"MIN_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"NORM_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"NOTICE", BDF_ATOM, 1, { 0 } }, + { (char *)"PIXEL_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"POINT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"QUAD_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_AVERAGE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_AVG_CAPITAL_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_CAP_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_END_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_FIGURE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_MAX_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_MIN_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_NORM_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_PIXEL_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_POINT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_PIXELSIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_POINTSIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_QUAD_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SMALL_CAP_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_STRIKEOUT_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_STRIKEOUT_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUBSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUBSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUBSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUPERSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUPERSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUPERSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_UNDERLINE_POSITION", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_UNDERLINE_THICKNESS", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_X_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RELATIVE_SETWIDTH", BDF_CARDINAL, 1, { 0 } }, + { (char *)"RELATIVE_WEIGHT", BDF_CARDINAL, 1, { 0 } }, + { (char *)"RESOLUTION", BDF_INTEGER, 1, { 0 } }, + { (char *)"RESOLUTION_X", BDF_CARDINAL, 1, { 0 } }, + { (char *)"RESOLUTION_Y", BDF_CARDINAL, 1, { 0 } }, + { (char *)"SETWIDTH_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"SLANT", BDF_ATOM, 1, { 0 } }, + { (char *)"SMALL_CAP_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"SPACING", BDF_ATOM, 1, { 0 } }, + { (char *)"STRIKEOUT_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"STRIKEOUT_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUBSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUBSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUBSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUPERSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUPERSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUPERSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"UNDERLINE_POSITION", BDF_INTEGER, 1, { 0 } }, + { (char *)"UNDERLINE_THICKNESS", BDF_INTEGER, 1, { 0 } }, + { (char *)"WEIGHT", BDF_CARDINAL, 1, { 0 } }, + { (char *)"WEIGHT_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"X_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"_MULE_BASELINE_OFFSET", BDF_INTEGER, 1, { 0 } }, + { (char *)"_MULE_RELATIVE_COMPOSE", BDF_INTEGER, 1, { 0 } }, + }; + + static const unsigned long + _num_bdf_properties = sizeof ( _bdf_properties ) / + sizeof ( _bdf_properties[0] ); + + + /*************************************************************************/ + /* */ + /* Hash table utilities for the properties. */ + /* */ + /*************************************************************************/ + + /* XXX: Replace this with FreeType's hash functions */ + + +#define INITIAL_HT_SIZE 241 + + typedef void + (*hash_free_func)( hashnode node ); + + static hashnode* + hash_bucket( const char* key, + hashtable* ht ) + { + const char* kp = key; + unsigned long res = 0; + hashnode* bp = ht->table, *ndp; + + + /* Mocklisp hash function. */ + while ( *kp ) + res = ( res << 5 ) - res + *kp++; + + ndp = bp + ( res % ht->size ); + while ( *ndp ) + { + kp = (*ndp)->key; + if ( kp[0] == key[0] && ft_strcmp( kp, key ) == 0 ) + break; + ndp--; + if ( ndp < bp ) + ndp = bp + ( ht->size - 1 ); + } + + return ndp; + } + + + static FT_Error + hash_rehash( hashtable* ht, + FT_Memory memory ) + { + hashnode* obp = ht->table, *bp, *nbp; + int i, sz = ht->size; + FT_Error error = BDF_Err_Ok; + + + ht->size <<= 1; + ht->limit = ht->size / 3; + + if ( FT_NEW_ARRAY( ht->table, ht->size ) ) + goto Exit; + + for ( i = 0, bp = obp; i < sz; i++, bp++ ) + { + if ( *bp ) + { + nbp = hash_bucket( (*bp)->key, ht ); + *nbp = *bp; + } + } + FT_FREE( obp ); + + Exit: + return error; + } + + + static FT_Error + hash_init( hashtable* ht, + FT_Memory memory ) + { + int sz = INITIAL_HT_SIZE; + FT_Error error = BDF_Err_Ok; + + + ht->size = sz; + ht->limit = sz / 3; + ht->used = 0; + + if ( FT_NEW_ARRAY( ht->table, sz ) ) + goto Exit; + + Exit: + return error; + } + + + static void + hash_free( hashtable* ht, + FT_Memory memory ) + { + if ( ht != 0 ) + { + int i, sz = ht->size; + hashnode* bp = ht->table; + + + for ( i = 0; i < sz; i++, bp++ ) + FT_FREE( *bp ); + + FT_FREE( ht->table ); + } + } + + + static FT_Error + hash_insert( char* key, + size_t data, + hashtable* ht, + FT_Memory memory ) + { + hashnode nn, *bp = hash_bucket( key, ht ); + FT_Error error = BDF_Err_Ok; + + + nn = *bp; + if ( !nn ) + { + if ( FT_NEW( nn ) ) + goto Exit; + *bp = nn; + + nn->key = key; + nn->data = data; + + if ( ht->used >= ht->limit ) + { + error = hash_rehash( ht, memory ); + if ( error ) + goto Exit; + } + ht->used++; + } + else + nn->data = data; + + Exit: + return error; + } + + + static hashnode + hash_lookup( const char* key, + hashtable* ht ) + { + hashnode *np = hash_bucket( key, ht ); + + + return *np; + } + + + /*************************************************************************/ + /* */ + /* Utility types and functions. */ + /* */ + /*************************************************************************/ + + + /* Function type for parsing lines of a BDF font. */ + + typedef FT_Error + (*_bdf_line_func_t)( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ); + + + /* List structure for splitting lines into fields. */ + + typedef struct _bdf_list_t_ + { + char** field; + unsigned long size; + unsigned long used; + FT_Memory memory; + + } _bdf_list_t; + + + /* Structure used while loading BDF fonts. */ + + typedef struct _bdf_parse_t_ + { + unsigned long flags; + unsigned long cnt; + unsigned long row; + + short minlb; + short maxlb; + short maxrb; + short maxas; + short maxds; + + short rbearing; + + char* glyph_name; + long glyph_enc; + + bdf_font_t* font; + bdf_options_t* opts; + + unsigned long have[2048]; + _bdf_list_t list; + + FT_Memory memory; + + } _bdf_parse_t; + + +#define setsbit( m, cc ) \ + ( m[(FT_Byte)(cc) >> 3] |= (FT_Byte)( 1 << ( (cc) & 7 ) ) ) +#define sbitset( m, cc ) \ + ( m[(FT_Byte)(cc) >> 3] & ( 1 << ( (cc) & 7 ) ) ) + + + static void + _bdf_list_init( _bdf_list_t* list, + FT_Memory memory ) + { + FT_ZERO( list ); + list->memory = memory; + } + + + static void + _bdf_list_done( _bdf_list_t* list ) + { + FT_Memory memory = list->memory; + + + if ( memory ) + { + FT_FREE( list->field ); + FT_ZERO( list ); + } + } + + + static FT_Error + _bdf_list_ensure( _bdf_list_t* list, + unsigned long num_items ) /* same as _bdf_list_t.used */ + { + FT_Error error = BDF_Err_Ok; + + + if ( num_items > list->size ) + { + unsigned long oldsize = list->size; /* same as _bdf_list_t.size */ + unsigned long newsize = oldsize + ( oldsize >> 1 ) + 4; + unsigned long bigsize = (unsigned long)( FT_INT_MAX / sizeof ( char* ) ); + FT_Memory memory = list->memory; + + + if ( oldsize == bigsize ) + { + error = BDF_Err_Out_Of_Memory; + goto Exit; + } + else if ( newsize < oldsize || newsize > bigsize ) + newsize = bigsize; + + if ( FT_RENEW_ARRAY( list->field, oldsize, newsize ) ) + goto Exit; + + list->size = newsize; + } + + Exit: + return error; + } + + + static void + _bdf_list_shift( _bdf_list_t* list, + unsigned long n ) + { + unsigned long i, u; + + + if ( list == 0 || list->used == 0 || n == 0 ) + return; + + if ( n >= list->used ) + { + list->used = 0; + return; + } + + for ( u = n, i = 0; u < list->used; i++, u++ ) + list->field[i] = list->field[u]; + list->used -= n; + } + + + /* An empty string for empty fields. */ + + static const char empty[1] = { 0 }; /* XXX eliminate this */ + + + static char * + _bdf_list_join( _bdf_list_t* list, + int c, + unsigned long *alen ) + { + unsigned long i, j; + char *fp, *dp; + + + *alen = 0; + + if ( list == 0 || list->used == 0 ) + return 0; + + dp = list->field[0]; + for ( i = j = 0; i < list->used; i++ ) + { + fp = list->field[i]; + while ( *fp ) + dp[j++] = *fp++; + + if ( i + 1 < list->used ) + dp[j++] = (char)c; + } + if ( dp != empty ) + dp[j] = 0; + + *alen = j; + return dp; + } + + + static FT_Error + _bdf_list_split( _bdf_list_t* list, + char* separators, + char* line, + unsigned long linelen ) + { + int mult, final_empty; + char *sp, *ep, *end; + char seps[32]; + FT_Error error = BDF_Err_Ok; + + + /* Initialize the list. */ + list->used = 0; + + /* If the line is empty, then simply return. */ + if ( linelen == 0 || line[0] == 0 ) + goto Exit; + + /* In the original code, if the `separators' parameter is NULL or */ + /* empty, the list is split into individual bytes. We don't need */ + /* this, so an error is signaled. */ + if ( separators == 0 || *separators == 0 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + /* Prepare the separator bitmap. */ + FT_MEM_ZERO( seps, 32 ); + + /* If the very last character of the separator string is a plus, then */ + /* set the `mult' flag to indicate that multiple separators should be */ + /* collapsed into one. */ + for ( mult = 0, sp = separators; sp && *sp; sp++ ) + { + if ( *sp == '+' && *( sp + 1 ) == 0 ) + mult = 1; + else + setsbit( seps, *sp ); + } + + /* Break the line up into fields. */ + for ( final_empty = 0, sp = ep = line, end = sp + linelen; + sp < end && *sp; ) + { + /* Collect everything that is not a separator. */ + for ( ; *ep && !sbitset( seps, *ep ); ep++ ) + ; + + /* Resize the list if necessary. */ + if ( list->used == list->size ) + { + error = _bdf_list_ensure( list, list->used + 1 ); + if ( error ) + goto Exit; + } + + /* Assign the field appropriately. */ + list->field[list->used++] = ( ep > sp ) ? sp : (char*)empty; + + sp = ep; + + if ( mult ) + { + /* If multiple separators should be collapsed, do it now by */ + /* setting all the separator characters to 0. */ + for ( ; *ep && sbitset( seps, *ep ); ep++ ) + *ep = 0; + } + else if ( *ep != 0 ) + /* Don't collapse multiple separators by making them 0, so just */ + /* make the one encountered 0. */ + *ep++ = 0; + + final_empty = ( ep > sp && *ep == 0 ); + sp = ep; + } + + /* Finally, NULL-terminate the list. */ + if ( list->used + final_empty >= list->size ) + { + error = _bdf_list_ensure( list, list->used + final_empty + 1 ); + if ( error ) + goto Exit; + } + + if ( final_empty ) + list->field[list->used++] = (char*)empty; + + list->field[list->used] = 0; + + Exit: + return error; + } + + +#define NO_SKIP 256 /* this value cannot be stored in a 'char' */ + + + static FT_Error + _bdf_readstream( FT_Stream stream, + _bdf_line_func_t callback, + void* client_data, + unsigned long *lno ) + { + _bdf_line_func_t cb; + unsigned long lineno, buf_size; + int refill, hold, to_skip; + ptrdiff_t bytes, start, end, cursor, avail; + char* buf = 0; + FT_Memory memory = stream->memory; + FT_Error error = BDF_Err_Ok; + + + if ( callback == 0 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + /* initial size and allocation of the input buffer */ + buf_size = 1024; + + if ( FT_NEW_ARRAY( buf, buf_size ) ) + goto Exit; + + cb = callback; + lineno = 1; + buf[0] = 0; + start = 0; + end = 0; + avail = 0; + cursor = 0; + refill = 1; + to_skip = NO_SKIP; + bytes = 0; /* make compiler happy */ + + for (;;) + { + if ( refill ) + { + bytes = (ptrdiff_t)FT_Stream_TryRead( + stream, (FT_Byte*)buf + cursor, + (FT_ULong)( buf_size - cursor ) ); + avail = cursor + bytes; + cursor = 0; + refill = 0; + } + + end = start; + + /* should we skip an optional character like \n or \r? */ + if ( start < avail && buf[start] == to_skip ) + { + start += 1; + to_skip = NO_SKIP; + continue; + } + + /* try to find the end of the line */ + while ( end < avail && buf[end] != '\n' && buf[end] != '\r' ) + end++; + + /* if we hit the end of the buffer, try shifting its content */ + /* or even resizing it */ + if ( end >= avail ) + { + if ( bytes == 0 ) /* last line in file doesn't end in \r or \n */ + break; /* ignore it then exit */ + + if ( start == 0 ) + { + /* this line is definitely too long; try resizing the input */ + /* buffer a bit to handle it. */ + FT_ULong new_size; + + + if ( buf_size >= 65536UL ) /* limit ourselves to 64KByte */ + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + new_size = buf_size * 2; + if ( FT_RENEW_ARRAY( buf, buf_size, new_size ) ) + goto Exit; + + cursor = buf_size; + buf_size = new_size; + } + else + { + bytes = avail - start; + + FT_MEM_COPY( buf, buf + start, bytes ); + + cursor = bytes; + avail -= bytes; + start = 0; + } + refill = 1; + continue; + } + + /* Temporarily NUL-terminate the line. */ + hold = buf[end]; + buf[end] = 0; + + /* XXX: Use encoding independent value for 0x1a */ + if ( buf[start] != '#' && buf[start] != 0x1a && end > start ) + { + error = (*cb)( buf + start, end - start, lineno, + (void*)&cb, client_data ); + /* Redo if we have encountered CHARS without properties. */ + if ( error == -1 ) + error = (*cb)( buf + start, end - start, lineno, + (void*)&cb, client_data ); + if ( error ) + break; + } + + lineno += 1; + buf[end] = (char)hold; + start = end + 1; + + if ( hold == '\n' ) + to_skip = '\r'; + else if ( hold == '\r' ) + to_skip = '\n'; + else + to_skip = NO_SKIP; + } + + *lno = lineno; + + Exit: + FT_FREE( buf ); + return error; + } + + + /* XXX: make this work with EBCDIC also */ + + static const unsigned char a2i[128] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + + static const unsigned char odigits[32] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + + static const unsigned char ddigits[32] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + + static const unsigned char hdigits[32] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, + 0x7e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + + +#define isdigok( m, d ) (m[(d) >> 3] & ( 1 << ( (d) & 7 ) ) ) + + + /* Routine to convert an ASCII string into an unsigned long integer. */ + static unsigned long + _bdf_atoul( char* s, + char** end, + int base ) + { + unsigned long v; + const unsigned char* dmap; + + + if ( s == 0 || *s == 0 ) + return 0; + + /* Make sure the radix is something recognizable. Default to 10. */ + switch ( base ) + { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* Check for the special hex prefix. */ + if ( *s == '0' && + ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) ) + { + base = 16; + dmap = hdigits; + s += 2; + } + + for ( v = 0; isdigok( dmap, *s ); s++ ) + v = v * base + a2i[(int)*s]; + + if ( end != 0 ) + *end = s; + + return v; + } + + + /* Routine to convert an ASCII string into an signed long integer. */ + static long + _bdf_atol( char* s, + char** end, + int base ) + { + long v, neg; + const unsigned char* dmap; + + + if ( s == 0 || *s == 0 ) + return 0; + + /* Make sure the radix is something recognizable. Default to 10. */ + switch ( base ) + { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* Check for a minus sign. */ + neg = 0; + if ( *s == '-' ) + { + s++; + neg = 1; + } + + /* Check for the special hex prefix. */ + if ( *s == '0' && + ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) ) + { + base = 16; + dmap = hdigits; + s += 2; + } + + for ( v = 0; isdigok( dmap, *s ); s++ ) + v = v * base + a2i[(int)*s]; + + if ( end != 0 ) + *end = s; + + return ( !neg ) ? v : -v; + } + + + /* Routine to convert an ASCII string into an signed short integer. */ + static short + _bdf_atos( char* s, + char** end, + int base ) + { + short v, neg; + const unsigned char* dmap; + + + if ( s == 0 || *s == 0 ) + return 0; + + /* Make sure the radix is something recognizable. Default to 10. */ + switch ( base ) + { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* Check for a minus. */ + neg = 0; + if ( *s == '-' ) + { + s++; + neg = 1; + } + + /* Check for the special hex prefix. */ + if ( *s == '0' && + ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) ) + { + base = 16; + dmap = hdigits; + s += 2; + } + + for ( v = 0; isdigok( dmap, *s ); s++ ) + v = (short)( v * base + a2i[(int)*s] ); + + if ( end != 0 ) + *end = s; + + return (short)( ( !neg ) ? v : -v ); + } + + + /* Routine to compare two glyphs by encoding so they can be sorted. */ + static int + by_encoding( const void* a, + const void* b ) + { + bdf_glyph_t *c1, *c2; + + + c1 = (bdf_glyph_t *)a; + c2 = (bdf_glyph_t *)b; + + if ( c1->encoding < c2->encoding ) + return -1; + + if ( c1->encoding > c2->encoding ) + return 1; + + return 0; + } + + + static FT_Error + bdf_create_property( char* name, + int format, + bdf_font_t* font ) + { + size_t n; + bdf_property_t* p; + FT_Memory memory = font->memory; + FT_Error error = BDF_Err_Ok; + + + /* First check whether the property has */ + /* already been added or not. If it has, then */ + /* simply ignore it. */ + if ( hash_lookup( name, &(font->proptbl) ) ) + goto Exit; + + if ( FT_RENEW_ARRAY( font->user_props, + font->nuser_props, + font->nuser_props + 1 ) ) + goto Exit; + + p = font->user_props + font->nuser_props; + FT_ZERO( p ); + + n = ft_strlen( name ) + 1; + if ( n > FT_ULONG_MAX ) + return BDF_Err_Invalid_Argument; + + if ( FT_NEW_ARRAY( p->name, n ) ) + goto Exit; + + FT_MEM_COPY( (char *)p->name, name, n ); + + p->format = format; + p->builtin = 0; + + n = _num_bdf_properties + font->nuser_props; + + error = hash_insert( p->name, n, &(font->proptbl), memory ); + if ( error ) + goto Exit; + + font->nuser_props++; + + Exit: + return error; + } + + + FT_LOCAL_DEF( bdf_property_t * ) + bdf_get_property( char* name, + bdf_font_t* font ) + { + hashnode hn; + size_t propid; + + + if ( name == 0 || *name == 0 ) + return 0; + + if ( ( hn = hash_lookup( name, &(font->proptbl) ) ) == 0 ) + return 0; + + propid = hn->data; + if ( propid >= _num_bdf_properties ) + return font->user_props + ( propid - _num_bdf_properties ); + + return (bdf_property_t*)_bdf_properties + propid; + } + + + /*************************************************************************/ + /* */ + /* BDF font file parsing flags and functions. */ + /* */ + /*************************************************************************/ + + + /* Parse flags. */ + +#define _BDF_START 0x0001 +#define _BDF_FONT_NAME 0x0002 +#define _BDF_SIZE 0x0004 +#define _BDF_FONT_BBX 0x0008 +#define _BDF_PROPS 0x0010 +#define _BDF_GLYPHS 0x0020 +#define _BDF_GLYPH 0x0040 +#define _BDF_ENCODING 0x0080 +#define _BDF_SWIDTH 0x0100 +#define _BDF_DWIDTH 0x0200 +#define _BDF_BBX 0x0400 +#define _BDF_BITMAP 0x0800 + +#define _BDF_SWIDTH_ADJ 0x1000 + +#define _BDF_GLYPH_BITS ( _BDF_GLYPH | \ + _BDF_ENCODING | \ + _BDF_SWIDTH | \ + _BDF_DWIDTH | \ + _BDF_BBX | \ + _BDF_BITMAP ) + +#define _BDF_GLYPH_WIDTH_CHECK 0x40000000UL +#define _BDF_GLYPH_HEIGHT_CHECK 0x80000000UL + + + /* Auto correction messages. */ +#define ACMSG1 "FONT_ASCENT property missing. " \ + "Added \"FONT_ASCENT %hd\".\n" +#define ACMSG2 "FONT_DESCENT property missing. " \ + "Added \"FONT_DESCENT %hd\".\n" +#define ACMSG3 "Font width != actual width. Old: %hd New: %hd.\n" +#define ACMSG4 "Font left bearing != actual left bearing. " \ + "Old: %hd New: %hd.\n" +#define ACMSG5 "Font ascent != actual ascent. Old: %hd New: %hd.\n" +#define ACMSG6 "Font descent != actual descent. Old: %hd New: %hd.\n" +#define ACMSG7 "Font height != actual height. Old: %hd New: %hd.\n" +#define ACMSG8 "Glyph scalable width (SWIDTH) adjustments made.\n" +#define ACMSG9 "SWIDTH field missing at line %ld. Set automatically.\n" +#define ACMSG10 "DWIDTH field missing at line %ld. Set to glyph width.\n" +#define ACMSG11 "SIZE bits per pixel field adjusted to %hd.\n" +#define ACMSG12 "Duplicate encoding %ld (%s) changed to unencoded.\n" +#define ACMSG13 "Glyph %ld extra rows removed.\n" +#define ACMSG14 "Glyph %ld extra columns removed.\n" +#define ACMSG15 "Incorrect glyph count: %ld indicated but %ld found.\n" + + /* Error messages. */ +#define ERRMSG1 "[line %ld] Missing \"%s\" line.\n" +#define ERRMSG2 "[line %ld] Font header corrupted or missing fields.\n" +#define ERRMSG3 "[line %ld] Font glyphs corrupted or missing fields.\n" +#define ERRMSG4 "[line %ld] BBX too big.\n" + + + static FT_Error + _bdf_add_comment( bdf_font_t* font, + char* comment, + unsigned long len ) + { + char* cp; + FT_Memory memory = font->memory; + FT_Error error = BDF_Err_Ok; + + + if ( FT_RENEW_ARRAY( font->comments, + font->comments_len, + font->comments_len + len + 1 ) ) + goto Exit; + + cp = font->comments + font->comments_len; + + FT_MEM_COPY( cp, comment, len ); + cp[len] = '\n'; + + font->comments_len += len + 1; + + Exit: + return error; + } + + + /* Set the spacing from the font name if it exists, or set it to the */ + /* default specified in the options. */ + static FT_Error + _bdf_set_default_spacing( bdf_font_t* font, + bdf_options_t* opts ) + { + size_t len; + char name[256]; + _bdf_list_t list; + FT_Memory memory; + FT_Error error = BDF_Err_Ok; + + + if ( font == 0 || font->name == 0 || font->name[0] == 0 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + memory = font->memory; + + _bdf_list_init( &list, memory ); + + font->spacing = opts->font_spacing; + + len = ft_strlen( font->name ) + 1; + /* Limit ourselves to 256 characters in the font name. */ + if ( len >= 256 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + FT_MEM_COPY( name, font->name, len ); + + error = _bdf_list_split( &list, (char *)"-", name, len ); + if ( error ) + goto Fail; + + if ( list.used == 15 ) + { + switch ( list.field[11][0] ) + { + case 'C': + case 'c': + font->spacing = BDF_CHARCELL; + break; + case 'M': + case 'm': + font->spacing = BDF_MONOWIDTH; + break; + case 'P': + case 'p': + font->spacing = BDF_PROPORTIONAL; + break; + } + } + + Fail: + _bdf_list_done( &list ); + + Exit: + return error; + } + + + /* Determine whether the property is an atom or not. If it is, then */ + /* clean it up so the double quotes are removed if they exist. */ + static int + _bdf_is_atom( char* line, + unsigned long linelen, + char** name, + char** value, + bdf_font_t* font ) + { + int hold; + char *sp, *ep; + bdf_property_t* p; + + + *name = sp = ep = line; + + while ( *ep && *ep != ' ' && *ep != '\t' ) + ep++; + + hold = -1; + if ( *ep ) + { + hold = *ep; + *ep = 0; + } + + p = bdf_get_property( sp, font ); + + /* Restore the character that was saved before any return can happen. */ + if ( hold != -1 ) + *ep = (char)hold; + + /* If the property exists and is not an atom, just return here. */ + if ( p && p->format != BDF_ATOM ) + return 0; + + /* The property is an atom. Trim all leading and trailing whitespace */ + /* and double quotes for the atom value. */ + sp = ep; + ep = line + linelen; + + /* Trim the leading whitespace if it exists. */ + *sp++ = 0; + while ( *sp && + ( *sp == ' ' || *sp == '\t' ) ) + sp++; + + /* Trim the leading double quote if it exists. */ + if ( *sp == '"' ) + sp++; + *value = sp; + + /* Trim the trailing whitespace if it exists. */ + while ( ep > sp && + ( *( ep - 1 ) == ' ' || *( ep - 1 ) == '\t' ) ) + *--ep = 0; + + /* Trim the trailing double quote if it exists. */ + if ( ep > sp && *( ep - 1 ) == '"' ) + *--ep = 0; + + return 1; + } + + + static FT_Error + _bdf_add_property( bdf_font_t* font, + char* name, + char* value ) + { + size_t propid; + hashnode hn; + bdf_property_t *prop, *fp; + FT_Memory memory = font->memory; + FT_Error error = BDF_Err_Ok; + + + /* First, check whether the property already exists in the font. */ + if ( ( hn = hash_lookup( name, (hashtable *)font->internal ) ) != 0 ) + { + /* The property already exists in the font, so simply replace */ + /* the value of the property with the current value. */ + fp = font->props + hn->data; + + switch ( fp->format ) + { + case BDF_ATOM: + /* Delete the current atom if it exists. */ + FT_FREE( fp->value.atom ); + + if ( value && value[0] != 0 ) + { + if ( FT_STRDUP( fp->value.atom, value ) ) + goto Exit; + } + break; + + case BDF_INTEGER: + fp->value.l = _bdf_atol( value, 0, 10 ); + break; + + case BDF_CARDINAL: + fp->value.ul = _bdf_atoul( value, 0, 10 ); + break; + + default: + ; + } + + goto Exit; + } + + /* See whether this property type exists yet or not. */ + /* If not, create it. */ + hn = hash_lookup( name, &(font->proptbl) ); + if ( hn == 0 ) + { + error = bdf_create_property( name, BDF_ATOM, font ); + if ( error ) + goto Exit; + hn = hash_lookup( name, &(font->proptbl) ); + } + + /* Allocate another property if this is overflow. */ + if ( font->props_used == font->props_size ) + { + if ( font->props_size == 0 ) + { + if ( FT_NEW_ARRAY( font->props, 1 ) ) + goto Exit; + } + else + { + if ( FT_RENEW_ARRAY( font->props, + font->props_size, + font->props_size + 1 ) ) + goto Exit; + } + + fp = font->props + font->props_size; + FT_MEM_ZERO( fp, sizeof ( bdf_property_t ) ); + font->props_size++; + } + + propid = hn->data; + if ( propid >= _num_bdf_properties ) + prop = font->user_props + ( propid - _num_bdf_properties ); + else + prop = (bdf_property_t*)_bdf_properties + propid; + + fp = font->props + font->props_used; + + fp->name = prop->name; + fp->format = prop->format; + fp->builtin = prop->builtin; + + switch ( prop->format ) + { + case BDF_ATOM: + fp->value.atom = 0; + if ( value != 0 && value[0] ) + { + if ( FT_STRDUP( fp->value.atom, value ) ) + goto Exit; + } + break; + + case BDF_INTEGER: + fp->value.l = _bdf_atol( value, 0, 10 ); + break; + + case BDF_CARDINAL: + fp->value.ul = _bdf_atoul( value, 0, 10 ); + break; + } + + /* If the property happens to be a comment, then it doesn't need */ + /* to be added to the internal hash table. */ + if ( ft_memcmp( name, "COMMENT", 7 ) != 0 ) + { + /* Add the property to the font property table. */ + error = hash_insert( fp->name, + font->props_used, + (hashtable *)font->internal, + memory ); + if ( error ) + goto Exit; + } + + font->props_used++; + + /* Some special cases need to be handled here. The DEFAULT_CHAR */ + /* property needs to be located if it exists in the property list, the */ + /* FONT_ASCENT and FONT_DESCENT need to be assigned if they are */ + /* present, and the SPACING property should override the default */ + /* spacing. */ + if ( ft_memcmp( name, "DEFAULT_CHAR", 12 ) == 0 ) + font->default_char = fp->value.l; + else if ( ft_memcmp( name, "FONT_ASCENT", 11 ) == 0 ) + font->font_ascent = fp->value.l; + else if ( ft_memcmp( name, "FONT_DESCENT", 12 ) == 0 ) + font->font_descent = fp->value.l; + else if ( ft_memcmp( name, "SPACING", 7 ) == 0 ) + { + if ( !fp->value.atom ) + { + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + if ( fp->value.atom[0] == 'p' || fp->value.atom[0] == 'P' ) + font->spacing = BDF_PROPORTIONAL; + else if ( fp->value.atom[0] == 'm' || fp->value.atom[0] == 'M' ) + font->spacing = BDF_MONOWIDTH; + else if ( fp->value.atom[0] == 'c' || fp->value.atom[0] == 'C' ) + font->spacing = BDF_CHARCELL; + } + + Exit: + return error; + } + + + static const unsigned char nibble_mask[8] = + { + 0xFF, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE + }; + + + /* Actually parse the glyph info and bitmaps. */ + static FT_Error + _bdf_parse_glyphs( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ) + { + int c, mask_index; + char* s; + unsigned char* bp; + unsigned long i, slen, nibbles; + + _bdf_parse_t* p; + bdf_glyph_t* glyph; + bdf_font_t* font; + + FT_Memory memory; + FT_Error error = BDF_Err_Ok; + + FT_UNUSED( call_data ); + FT_UNUSED( lineno ); /* only used in debug mode */ + + + p = (_bdf_parse_t *)client_data; + + font = p->font; + memory = font->memory; + + /* Check for a comment. */ + if ( ft_memcmp( line, "COMMENT", 7 ) == 0 ) + { + linelen -= 7; + + s = line + 7; + if ( *s != 0 ) + { + s++; + linelen--; + } + error = _bdf_add_comment( p->font, s, linelen ); + goto Exit; + } + + /* The very first thing expected is the number of glyphs. */ + if ( !( p->flags & _BDF_GLYPHS ) ) + { + if ( ft_memcmp( line, "CHARS", 5 ) != 0 ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "CHARS" )); + error = BDF_Err_Missing_Chars_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + p->cnt = font->glyphs_size = _bdf_atoul( p->list.field[1], 0, 10 ); + + /* Make sure the number of glyphs is non-zero. */ + if ( p->cnt == 0 ) + font->glyphs_size = 64; + + /* Limit ourselves to 1,114,112 glyphs in the font (this is the */ + /* number of code points available in Unicode). */ + if ( p->cnt >= 1114112UL ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + if ( FT_NEW_ARRAY( font->glyphs, font->glyphs_size ) ) + goto Exit; + + p->flags |= _BDF_GLYPHS; + + goto Exit; + } + + /* Check for the ENDFONT field. */ + if ( ft_memcmp( line, "ENDFONT", 7 ) == 0 ) + { + /* Sort the glyphs by encoding. */ + ft_qsort( (char *)font->glyphs, + font->glyphs_used, + sizeof ( bdf_glyph_t ), + by_encoding ); + + p->flags &= ~_BDF_START; + + goto Exit; + } + + /* Check for the ENDCHAR field. */ + if ( ft_memcmp( line, "ENDCHAR", 7 ) == 0 ) + { + p->glyph_enc = 0; + p->flags &= ~_BDF_GLYPH_BITS; + + goto Exit; + } + + /* Check whether a glyph is being scanned but should be */ + /* ignored because it is an unencoded glyph. */ + if ( ( p->flags & _BDF_GLYPH ) && + p->glyph_enc == -1 && + p->opts->keep_unencoded == 0 ) + goto Exit; + + /* Check for the STARTCHAR field. */ + if ( ft_memcmp( line, "STARTCHAR", 9 ) == 0 ) + { + /* Set the character name in the parse info first until the */ + /* encoding can be checked for an unencoded character. */ + FT_FREE( p->glyph_name ); + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + _bdf_list_shift( &p->list, 1 ); + + s = _bdf_list_join( &p->list, ' ', &slen ); + + if ( !s ) + { + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_NEW_ARRAY( p->glyph_name, slen + 1 ) ) + goto Exit; + + FT_MEM_COPY( p->glyph_name, s, slen + 1 ); + + p->flags |= _BDF_GLYPH; + + goto Exit; + } + + /* Check for the ENCODING field. */ + if ( ft_memcmp( line, "ENCODING", 8 ) == 0 ) + { + if ( !( p->flags & _BDF_GLYPH ) ) + { + /* Missing STARTCHAR field. */ + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "STARTCHAR" )); + error = BDF_Err_Missing_Startchar_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + p->glyph_enc = _bdf_atol( p->list.field[1], 0, 10 ); + + /* Check that the encoding is in the range [0,65536] because */ + /* otherwise p->have (a bitmap with static size) overflows. */ + if ( p->glyph_enc > 0 && + (size_t)p->glyph_enc >= sizeof ( p->have ) * 8 ) + { + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + /* Check whether this encoding has already been encountered. */ + /* If it has then change it to unencoded so it gets added if */ + /* indicated. */ + if ( p->glyph_enc >= 0 ) + { + if ( _bdf_glyph_modified( p->have, p->glyph_enc ) ) + { + /* Emit a message saying a glyph has been moved to the */ + /* unencoded area. */ + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG12, + p->glyph_enc, p->glyph_name )); + p->glyph_enc = -1; + font->modified = 1; + } + else + _bdf_set_glyph_modified( p->have, p->glyph_enc ); + } + + if ( p->glyph_enc >= 0 ) + { + /* Make sure there are enough glyphs allocated in case the */ + /* number of characters happen to be wrong. */ + if ( font->glyphs_used == font->glyphs_size ) + { + if ( FT_RENEW_ARRAY( font->glyphs, + font->glyphs_size, + font->glyphs_size + 64 ) ) + goto Exit; + + font->glyphs_size += 64; + } + + glyph = font->glyphs + font->glyphs_used++; + glyph->name = p->glyph_name; + glyph->encoding = p->glyph_enc; + + /* Reset the initial glyph info. */ + p->glyph_name = 0; + } + else + { + /* Unencoded glyph. Check whether it should */ + /* be added or not. */ + if ( p->opts->keep_unencoded != 0 ) + { + /* Allocate the next unencoded glyph. */ + if ( font->unencoded_used == font->unencoded_size ) + { + if ( FT_RENEW_ARRAY( font->unencoded , + font->unencoded_size, + font->unencoded_size + 4 ) ) + goto Exit; + + font->unencoded_size += 4; + } + + glyph = font->unencoded + font->unencoded_used; + glyph->name = p->glyph_name; + glyph->encoding = font->unencoded_used++; + } + else + /* Free up the glyph name if the unencoded shouldn't be */ + /* kept. */ + FT_FREE( p->glyph_name ); + + p->glyph_name = 0; + } + + /* Clear the flags that might be added when width and height are */ + /* checked for consistency. */ + p->flags &= ~( _BDF_GLYPH_WIDTH_CHECK | _BDF_GLYPH_HEIGHT_CHECK ); + + p->flags |= _BDF_ENCODING; + + goto Exit; + } + + /* Point at the glyph being constructed. */ + if ( p->glyph_enc == -1 ) + glyph = font->unencoded + ( font->unencoded_used - 1 ); + else + glyph = font->glyphs + ( font->glyphs_used - 1 ); + + /* Check whether a bitmap is being constructed. */ + if ( p->flags & _BDF_BITMAP ) + { + /* If there are more rows than are specified in the glyph metrics, */ + /* ignore the remaining lines. */ + if ( p->row >= (unsigned long)glyph->bbx.height ) + { + if ( !( p->flags & _BDF_GLYPH_HEIGHT_CHECK ) ) + { + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG13, glyph->encoding )); + p->flags |= _BDF_GLYPH_HEIGHT_CHECK; + font->modified = 1; + } + + goto Exit; + } + + /* Only collect the number of nibbles indicated by the glyph */ + /* metrics. If there are more columns, they are simply ignored. */ + nibbles = glyph->bpr << 1; + bp = glyph->bitmap + p->row * glyph->bpr; + + for ( i = 0; i < nibbles; i++ ) + { + c = line[i]; + *bp = (FT_Byte)( ( *bp << 4 ) + a2i[c] ); + if ( i + 1 < nibbles && ( i & 1 ) ) + *++bp = 0; + } + + /* Remove possible garbage at the right. */ + mask_index = ( glyph->bbx.width * p->font->bpp ) & 7; + if ( glyph->bbx.width ) + *bp &= nibble_mask[mask_index]; + + /* If any line has extra columns, indicate they have been removed. */ + if ( ( line[nibbles] == '0' || a2i[(int)line[nibbles]] != 0 ) && + !( p->flags & _BDF_GLYPH_WIDTH_CHECK ) ) + { + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG14, glyph->encoding )); + p->flags |= _BDF_GLYPH_WIDTH_CHECK; + font->modified = 1; + } + + p->row++; + goto Exit; + } + + /* Expect the SWIDTH (scalable width) field next. */ + if ( ft_memcmp( line, "SWIDTH", 6 ) == 0 ) + { + if ( !( p->flags & _BDF_ENCODING ) ) + { + /* Missing ENCODING field. */ + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "ENCODING" )); + error = BDF_Err_Missing_Encoding_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + glyph->swidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 ); + p->flags |= _BDF_SWIDTH; + + goto Exit; + } + + /* Expect the DWIDTH (scalable width) field next. */ + if ( ft_memcmp( line, "DWIDTH", 6 ) == 0 ) + { + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + glyph->dwidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 ); + + if ( !( p->flags & _BDF_SWIDTH ) ) + { + /* Missing SWIDTH field. Emit an auto correction message and set */ + /* the scalable width from the device width. */ + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG9, lineno )); + + glyph->swidth = (unsigned short)FT_MulDiv( + glyph->dwidth, 72000L, + (FT_Long)( font->point_size * + font->resolution_x ) ); + } + + p->flags |= _BDF_DWIDTH; + goto Exit; + } + + /* Expect the BBX field next. */ + if ( ft_memcmp( line, "BBX", 3 ) == 0 ) + { + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + glyph->bbx.width = _bdf_atos( p->list.field[1], 0, 10 ); + glyph->bbx.height = _bdf_atos( p->list.field[2], 0, 10 ); + glyph->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 ); + glyph->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 ); + + /* Generate the ascent and descent of the character. */ + glyph->bbx.ascent = (short)( glyph->bbx.height + glyph->bbx.y_offset ); + glyph->bbx.descent = (short)( -glyph->bbx.y_offset ); + + /* Determine the overall font bounding box as the characters are */ + /* loaded so corrections can be done later if indicated. */ + p->maxas = (short)FT_MAX( glyph->bbx.ascent, p->maxas ); + p->maxds = (short)FT_MAX( glyph->bbx.descent, p->maxds ); + + p->rbearing = (short)( glyph->bbx.width + glyph->bbx.x_offset ); + + p->maxrb = (short)FT_MAX( p->rbearing, p->maxrb ); + p->minlb = (short)FT_MIN( glyph->bbx.x_offset, p->minlb ); + p->maxlb = (short)FT_MAX( glyph->bbx.x_offset, p->maxlb ); + + if ( !( p->flags & _BDF_DWIDTH ) ) + { + /* Missing DWIDTH field. Emit an auto correction message and set */ + /* the device width to the glyph width. */ + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG10, lineno )); + glyph->dwidth = glyph->bbx.width; + } + + /* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */ + /* value if necessary. */ + if ( p->opts->correct_metrics != 0 ) + { + /* Determine the point size of the glyph. */ + unsigned short sw = (unsigned short)FT_MulDiv( + glyph->dwidth, 72000L, + (FT_Long)( font->point_size * + font->resolution_x ) ); + + + if ( sw != glyph->swidth ) + { + glyph->swidth = sw; + + if ( p->glyph_enc == -1 ) + _bdf_set_glyph_modified( font->umod, + font->unencoded_used - 1 ); + else + _bdf_set_glyph_modified( font->nmod, glyph->encoding ); + + p->flags |= _BDF_SWIDTH_ADJ; + font->modified = 1; + } + } + + p->flags |= _BDF_BBX; + goto Exit; + } + + /* And finally, gather up the bitmap. */ + if ( ft_memcmp( line, "BITMAP", 6 ) == 0 ) + { + unsigned long bitmap_size; + + + if ( !( p->flags & _BDF_BBX ) ) + { + /* Missing BBX field. */ + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "BBX" )); + error = BDF_Err_Missing_Bbx_Field; + goto Exit; + } + + /* Allocate enough space for the bitmap. */ + glyph->bpr = ( glyph->bbx.width * p->font->bpp + 7 ) >> 3; + + bitmap_size = glyph->bpr * glyph->bbx.height; + if ( bitmap_size > 0xFFFFU ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG4, lineno )); + error = BDF_Err_Bbx_Too_Big; + goto Exit; + } + else + glyph->bytes = (unsigned short)bitmap_size; + + if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) ) + goto Exit; + + p->row = 0; + p->flags |= _BDF_BITMAP; + + goto Exit; + } + + error = BDF_Err_Invalid_File_Format; + + Exit: + if ( error && ( p->flags & _BDF_GLYPH ) ) + FT_FREE( p->glyph_name ); + + return error; + } + + + /* Load the font properties. */ + static FT_Error + _bdf_parse_properties( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ) + { + unsigned long vlen; + _bdf_line_func_t* next; + _bdf_parse_t* p; + char* name; + char* value; + char nbuf[128]; + FT_Error error = BDF_Err_Ok; + + FT_UNUSED( lineno ); + + + next = (_bdf_line_func_t *)call_data; + p = (_bdf_parse_t *) client_data; + + /* Check for the end of the properties. */ + if ( ft_memcmp( line, "ENDPROPERTIES", 13 ) == 0 ) + { + /* If the FONT_ASCENT or FONT_DESCENT properties have not been */ + /* encountered yet, then make sure they are added as properties and */ + /* make sure they are set from the font bounding box info. */ + /* */ + /* This is *always* done regardless of the options, because X11 */ + /* requires these two fields to compile fonts. */ + if ( bdf_get_font_property( p->font, "FONT_ASCENT" ) == 0 ) + { + p->font->font_ascent = p->font->bbx.ascent; + ft_sprintf( nbuf, "%hd", p->font->bbx.ascent ); + error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", nbuf ); + if ( error ) + goto Exit; + + FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent )); + p->font->modified = 1; + } + + if ( bdf_get_font_property( p->font, "FONT_DESCENT" ) == 0 ) + { + p->font->font_descent = p->font->bbx.descent; + ft_sprintf( nbuf, "%hd", p->font->bbx.descent ); + error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", nbuf ); + if ( error ) + goto Exit; + + FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent )); + p->font->modified = 1; + } + + p->flags &= ~_BDF_PROPS; + *next = _bdf_parse_glyphs; + + goto Exit; + } + + /* Ignore the _XFREE86_GLYPH_RANGES properties. */ + if ( ft_memcmp( line, "_XFREE86_GLYPH_RANGES", 21 ) == 0 ) + goto Exit; + + /* Handle COMMENT fields and properties in a special way to preserve */ + /* the spacing. */ + if ( ft_memcmp( line, "COMMENT", 7 ) == 0 ) + { + name = value = line; + value += 7; + if ( *value ) + *value++ = 0; + error = _bdf_add_property( p->font, name, value ); + if ( error ) + goto Exit; + } + else if ( _bdf_is_atom( line, linelen, &name, &value, p->font ) ) + { + error = _bdf_add_property( p->font, name, value ); + if ( error ) + goto Exit; + } + else + { + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + name = p->list.field[0]; + + _bdf_list_shift( &p->list, 1 ); + value = _bdf_list_join( &p->list, ' ', &vlen ); + + error = _bdf_add_property( p->font, name, value ); + if ( error ) + goto Exit; + } + + Exit: + return error; + } + + + /* Load the font header. */ + static FT_Error + _bdf_parse_start( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ) + { + unsigned long slen; + _bdf_line_func_t* next; + _bdf_parse_t* p; + bdf_font_t* font; + char *s; + + FT_Memory memory = NULL; + FT_Error error = BDF_Err_Ok; + + FT_UNUSED( lineno ); /* only used in debug mode */ + + + next = (_bdf_line_func_t *)call_data; + p = (_bdf_parse_t *) client_data; + + if ( p->font ) + memory = p->font->memory; + + /* Check for a comment. This is done to handle those fonts that have */ + /* comments before the STARTFONT line for some reason. */ + if ( ft_memcmp( line, "COMMENT", 7 ) == 0 ) + { + if ( p->opts->keep_comments != 0 && p->font != 0 ) + { + linelen -= 7; + + s = line + 7; + if ( *s != 0 ) + { + s++; + linelen--; + } + + error = _bdf_add_comment( p->font, s, linelen ); + if ( error ) + goto Exit; + /* here font is not defined! */ + } + + goto Exit; + } + + if ( !( p->flags & _BDF_START ) ) + { + memory = p->memory; + + if ( ft_memcmp( line, "STARTFONT", 9 ) != 0 ) + { + /* No STARTFONT field is a good indication of a problem. */ + error = BDF_Err_Missing_Startfont_Field; + goto Exit; + } + + p->flags = _BDF_START; + font = p->font = 0; + + if ( FT_NEW( font ) ) + goto Exit; + p->font = font; + + font->memory = p->memory; + p->memory = 0; + + { /* setup */ + size_t i; + bdf_property_t* prop; + + + error = hash_init( &(font->proptbl), memory ); + if ( error ) + goto Exit; + for ( i = 0, prop = (bdf_property_t*)_bdf_properties; + i < _num_bdf_properties; i++, prop++ ) + { + error = hash_insert( prop->name, i, + &(font->proptbl), memory ); + if ( error ) + goto Exit; + } + } + + if ( FT_ALLOC( p->font->internal, sizeof ( hashtable ) ) ) + goto Exit; + error = hash_init( (hashtable *)p->font->internal,memory ); + if ( error ) + goto Exit; + p->font->spacing = p->opts->font_spacing; + p->font->default_char = -1; + + goto Exit; + } + + /* Check for the start of the properties. */ + if ( ft_memcmp( line, "STARTPROPERTIES", 15 ) == 0 ) + { + if ( !( p->flags & _BDF_FONT_BBX ) ) + { + /* Missing the FONTBOUNDINGBOX field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" )); + error = BDF_Err_Missing_Fontboundingbox_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + /* at this point, `p->font' can't be NULL */ + p->cnt = p->font->props_size = _bdf_atoul( p->list.field[1], 0, 10 ); + + if ( FT_NEW_ARRAY( p->font->props, p->cnt ) ) + goto Exit; + + p->flags |= _BDF_PROPS; + *next = _bdf_parse_properties; + + goto Exit; + } + + /* Check for the FONTBOUNDINGBOX field. */ + if ( ft_memcmp( line, "FONTBOUNDINGBOX", 15 ) == 0 ) + { + if ( !( p->flags & _BDF_SIZE ) ) + { + /* Missing the SIZE field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "SIZE" )); + error = BDF_Err_Missing_Size_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + p->font->bbx.width = _bdf_atos( p->list.field[1], 0, 10 ); + p->font->bbx.height = _bdf_atos( p->list.field[2], 0, 10 ); + + p->font->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 ); + p->font->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 ); + + p->font->bbx.ascent = (short)( p->font->bbx.height + + p->font->bbx.y_offset ); + + p->font->bbx.descent = (short)( -p->font->bbx.y_offset ); + + p->flags |= _BDF_FONT_BBX; + + goto Exit; + } + + /* The next thing to check for is the FONT field. */ + if ( ft_memcmp( line, "FONT", 4 ) == 0 ) + { + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + _bdf_list_shift( &p->list, 1 ); + + s = _bdf_list_join( &p->list, ' ', &slen ); + + if ( !s ) + { + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allowing multiple `FONT' lines (which is invalid) doesn't hurt... */ + FT_FREE( p->font->name ); + + if ( FT_NEW_ARRAY( p->font->name, slen + 1 ) ) + goto Exit; + FT_MEM_COPY( p->font->name, s, slen + 1 ); + + /* If the font name is an XLFD name, set the spacing to the one in */ + /* the font name. If there is no spacing fall back on the default. */ + error = _bdf_set_default_spacing( p->font, p->opts ); + if ( error ) + goto Exit; + + p->flags |= _BDF_FONT_NAME; + + goto Exit; + } + + /* Check for the SIZE field. */ + if ( ft_memcmp( line, "SIZE", 4 ) == 0 ) + { + if ( !( p->flags & _BDF_FONT_NAME ) ) + { + /* Missing the FONT field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONT" )); + error = BDF_Err_Missing_Font_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + p->font->point_size = _bdf_atoul( p->list.field[1], 0, 10 ); + p->font->resolution_x = _bdf_atoul( p->list.field[2], 0, 10 ); + p->font->resolution_y = _bdf_atoul( p->list.field[3], 0, 10 ); + + /* Check for the bits per pixel field. */ + if ( p->list.used == 5 ) + { + unsigned short bitcount, i, shift; + + + p->font->bpp = (unsigned short)_bdf_atos( p->list.field[4], 0, 10 ); + + /* Only values 1, 2, 4, 8 are allowed. */ + shift = p->font->bpp; + bitcount = 0; + for ( i = 0; shift > 0; i++ ) + { + if ( shift & 1 ) + bitcount = i; + shift >>= 1; + } + + shift = (short)( ( bitcount > 3 ) ? 8 : ( 1 << bitcount ) ); + + if ( p->font->bpp > shift || p->font->bpp != shift ) + { + /* select next higher value */ + p->font->bpp = (unsigned short)( shift << 1 ); + FT_TRACE2(( "_bdf_parse_start: " ACMSG11, p->font->bpp )); + } + } + else + p->font->bpp = 1; + + p->flags |= _BDF_SIZE; + + goto Exit; + } + + /* Check for the CHARS field -- font properties are optional */ + if ( ft_memcmp( line, "CHARS", 5 ) == 0 ) + { + char nbuf[128]; + + + if ( !( p->flags & _BDF_FONT_BBX ) ) + { + /* Missing the FONTBOUNDINGBOX field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" )); + error = BDF_Err_Missing_Fontboundingbox_Field; + goto Exit; + } + + /* Add the two standard X11 properties which are required */ + /* for compiling fonts. */ + p->font->font_ascent = p->font->bbx.ascent; + ft_sprintf( nbuf, "%hd", p->font->bbx.ascent ); + error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", nbuf ); + if ( error ) + goto Exit; + FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent )); + + p->font->font_descent = p->font->bbx.descent; + ft_sprintf( nbuf, "%hd", p->font->bbx.descent ); + error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", nbuf ); + if ( error ) + goto Exit; + FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent )); + + p->font->modified = 1; + + *next = _bdf_parse_glyphs; + + /* A special return value. */ + error = -1; + goto Exit; + } + + error = BDF_Err_Invalid_File_Format; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* API. */ + /* */ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + bdf_load_font( FT_Stream stream, + FT_Memory extmemory, + bdf_options_t* opts, + bdf_font_t* *font ) + { + unsigned long lineno = 0; /* make compiler happy */ + _bdf_parse_t *p = NULL; + + FT_Memory memory = extmemory; + FT_Error error = BDF_Err_Ok; + + + if ( FT_NEW( p ) ) + goto Exit; + + memory = NULL; + p->opts = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts ); + p->minlb = 32767; + p->memory = extmemory; /* only during font creation */ + + _bdf_list_init( &p->list, extmemory ); + + error = _bdf_readstream( stream, _bdf_parse_start, + (void *)p, &lineno ); + if ( error ) + goto Fail; + + if ( p->font != 0 ) + { + /* If the font is not proportional, set the font's monowidth */ + /* field to the width of the font bounding box. */ + memory = p->font->memory; + + if ( p->font->spacing != BDF_PROPORTIONAL ) + p->font->monowidth = p->font->bbx.width; + + /* If the number of glyphs loaded is not that of the original count, */ + /* indicate the difference. */ + if ( p->cnt != p->font->glyphs_used + p->font->unencoded_used ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG15, p->cnt, + p->font->glyphs_used + p->font->unencoded_used )); + p->font->modified = 1; + } + + /* Once the font has been loaded, adjust the overall font metrics if */ + /* necessary. */ + if ( p->opts->correct_metrics != 0 && + ( p->font->glyphs_used > 0 || p->font->unencoded_used > 0 ) ) + { + if ( p->maxrb - p->minlb != p->font->bbx.width ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG3, + p->font->bbx.width, p->maxrb - p->minlb )); + p->font->bbx.width = (unsigned short)( p->maxrb - p->minlb ); + p->font->modified = 1; + } + + if ( p->font->bbx.x_offset != p->minlb ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG4, + p->font->bbx.x_offset, p->minlb )); + p->font->bbx.x_offset = p->minlb; + p->font->modified = 1; + } + + if ( p->font->bbx.ascent != p->maxas ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG5, + p->font->bbx.ascent, p->maxas )); + p->font->bbx.ascent = p->maxas; + p->font->modified = 1; + } + + if ( p->font->bbx.descent != p->maxds ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG6, + p->font->bbx.descent, p->maxds )); + p->font->bbx.descent = p->maxds; + p->font->bbx.y_offset = (short)( -p->maxds ); + p->font->modified = 1; + } + + if ( p->maxas + p->maxds != p->font->bbx.height ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG7, + p->font->bbx.height, p->maxas + p->maxds )); + p->font->bbx.height = (unsigned short)( p->maxas + p->maxds ); + } + + if ( p->flags & _BDF_SWIDTH_ADJ ) + FT_TRACE2(( "bdf_load_font: " ACMSG8 )); + } + } + + if ( p->flags & _BDF_START ) + { + { + /* The ENDFONT field was never reached or did not exist. */ + if ( !( p->flags & _BDF_GLYPHS ) ) + { + /* Error happened while parsing header. */ + FT_ERROR(( "bdf_load_font: " ERRMSG2, lineno )); + error = BDF_Err_Corrupted_Font_Header; + goto Exit; + } + else + { + /* Error happened when parsing glyphs. */ + FT_ERROR(( "bdf_load_font: " ERRMSG3, lineno )); + error = BDF_Err_Corrupted_Font_Glyphs; + goto Exit; + } + } + } + + if ( p->font != 0 ) + { + /* Make sure the comments are NULL terminated if they exist. */ + memory = p->font->memory; + + if ( p->font->comments_len > 0 ) + { + if ( FT_RENEW_ARRAY( p->font->comments, + p->font->comments_len, + p->font->comments_len + 1 ) ) + goto Fail; + + p->font->comments[p->font->comments_len] = 0; + } + } + else if ( error == BDF_Err_Ok ) + error = BDF_Err_Invalid_File_Format; + + *font = p->font; + + Exit: + if ( p ) + { + _bdf_list_done( &p->list ); + + memory = extmemory; + + FT_FREE( p ); + } + + return error; + + Fail: + bdf_free_font( p->font ); + + memory = extmemory; + + FT_FREE( p->font ); + + goto Exit; + } + + + FT_LOCAL_DEF( void ) + bdf_free_font( bdf_font_t* font ) + { + bdf_property_t* prop; + unsigned long i; + bdf_glyph_t* glyphs; + FT_Memory memory; + + + if ( font == 0 ) + return; + + memory = font->memory; + + FT_FREE( font->name ); + + /* Free up the internal hash table of property names. */ + if ( font->internal ) + { + hash_free( (hashtable *)font->internal, memory ); + FT_FREE( font->internal ); + } + + /* Free up the comment info. */ + FT_FREE( font->comments ); + + /* Free up the properties. */ + for ( i = 0; i < font->props_size; i++ ) + { + if ( font->props[i].format == BDF_ATOM ) + FT_FREE( font->props[i].value.atom ); + } + + FT_FREE( font->props ); + + /* Free up the character info. */ + for ( i = 0, glyphs = font->glyphs; + i < font->glyphs_used; i++, glyphs++ ) + { + FT_FREE( glyphs->name ); + FT_FREE( glyphs->bitmap ); + } + + for ( i = 0, glyphs = font->unencoded; i < font->unencoded_used; + i++, glyphs++ ) + { + FT_FREE( glyphs->name ); + FT_FREE( glyphs->bitmap ); + } + + FT_FREE( font->glyphs ); + FT_FREE( font->unencoded ); + + /* Free up the overflow storage if it was used. */ + for ( i = 0, glyphs = font->overflow.glyphs; + i < font->overflow.glyphs_used; i++, glyphs++ ) + { + FT_FREE( glyphs->name ); + FT_FREE( glyphs->bitmap ); + } + + FT_FREE( font->overflow.glyphs ); + + /* bdf_cleanup */ + hash_free( &(font->proptbl), memory ); + + /* Free up the user defined properties. */ + for ( prop = font->user_props, i = 0; + i < font->nuser_props; i++, prop++ ) + { + FT_FREE( prop->name ); + if ( prop->format == BDF_ATOM ) + FT_FREE( prop->value.atom ); + } + + FT_FREE( font->user_props ); + + /* FREE( font ); */ /* XXX Fixme */ + } + + + FT_LOCAL_DEF( bdf_property_t * ) + bdf_get_font_property( bdf_font_t* font, + const char* name ) + { + hashnode hn; + + + if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 ) + return 0; + + hn = hash_lookup( name, (hashtable *)font->internal ); + + return hn ? ( font->props + hn->data ) : 0; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/bzip2/ftbzip2.c b/uppsrc/plugin/FT_fontsys/src/bzip2/ftbzip2.c new file mode 100644 index 000000000..d6b8eb9c2 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/bzip2/ftbzip2.c @@ -0,0 +1,510 @@ +/***************************************************************************/ +/* */ +/* ftbzip2.c */ +/* */ +/* FreeType support for .bz2 compressed files. */ +/* */ +/* This optional component relies on libbz2. It should mainly be used to */ +/* parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2010 by */ +/* Joel Klinghed. */ +/* */ +/* Based on src/gzip/ftgzip.c, Copyright 2002 - 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H +#include FT_BZIP2_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX Bzip2_Err_ +#define FT_ERR_BASE FT_Mod_Err_Bzip2 + +#include FT_ERRORS_H + + +#ifdef FT_CONFIG_OPTION_USE_BZIP2 + +#ifdef FT_CONFIG_OPTION_PIC +#error "bzip2 code does not support PIC yet" +#endif + +#define BZ_NO_STDIO /* Do not need FILE */ +#include <bzlib.h> + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** B Z I P 2 M E M O R Y M A N A G E M E N T *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + /* it is better to use FreeType memory routines instead of raw + 'malloc/free' */ + + typedef void *(* alloc_func)(void*, int, int); + typedef void (* free_func)(void*, void*); + + static void* + ft_bzip2_alloc( FT_Memory memory, + int items, + int size ) + { + FT_ULong sz = (FT_ULong)size * items; + FT_Error error; + FT_Pointer p = NULL; + + + (void)FT_ALLOC( p, sz ); + return p; + } + + + static void + ft_bzip2_free( FT_Memory memory, + void* address ) + { + FT_MEM_FREE( address ); + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** B Z I P 2 F I L E D E S C R I P T O R *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +#define FT_BZIP2_BUFFER_SIZE 4096 + + typedef struct FT_BZip2FileRec_ + { + FT_Stream source; /* parent/source stream */ + FT_Stream stream; /* embedding stream */ + FT_Memory memory; /* memory allocator */ + bz_stream bzstream; /* bzlib input stream */ + + FT_Byte input[FT_BZIP2_BUFFER_SIZE]; /* input read buffer */ + + FT_Byte buffer[FT_BZIP2_BUFFER_SIZE]; /* output buffer */ + FT_ULong pos; /* position in output */ + FT_Byte* cursor; + FT_Byte* limit; + + } FT_BZip2FileRec, *FT_BZip2File; + + + /* check and skip .bz2 header - we don't support `transparent' compression */ + static FT_Error + ft_bzip2_check_header( FT_Stream stream ) + { + FT_Error error = Bzip2_Err_Ok; + FT_Byte head[4]; + + + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ( head, 4 ) ) + goto Exit; + + /* head[0] && head[1] are the magic numbers; */ + /* head[2] is the version, and head[3] the blocksize */ + if ( head[0] != 0x42 || + head[1] != 0x5a || + head[2] != 0x68 ) /* only support bzip2 (huffman) */ + { + error = Bzip2_Err_Invalid_File_Format; + goto Exit; + } + + Exit: + return error; + } + + + static FT_Error + ft_bzip2_file_init( FT_BZip2File zip, + FT_Stream stream, + FT_Stream source ) + { + bz_stream* bzstream = &zip->bzstream; + FT_Error error = Bzip2_Err_Ok; + + + zip->stream = stream; + zip->source = source; + zip->memory = stream->memory; + + zip->limit = zip->buffer + FT_BZIP2_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + /* check .bz2 header */ + { + stream = source; + + error = ft_bzip2_check_header( stream ); + if ( error ) + goto Exit; + + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + } + + /* initialize bzlib */ + bzstream->bzalloc = (alloc_func)ft_bzip2_alloc; + bzstream->bzfree = (free_func) ft_bzip2_free; + bzstream->opaque = zip->memory; + + bzstream->avail_in = 0; + bzstream->next_in = (char*)zip->buffer; + + if ( BZ2_bzDecompressInit( bzstream, 0, 0 ) != BZ_OK || + bzstream->next_in == NULL ) + error = Bzip2_Err_Invalid_File_Format; + + Exit: + return error; + } + + + static void + ft_bzip2_file_done( FT_BZip2File zip ) + { + bz_stream* bzstream = &zip->bzstream; + + + BZ2_bzDecompressEnd( bzstream ); + + /* clear the rest */ + bzstream->bzalloc = NULL; + bzstream->bzfree = NULL; + bzstream->opaque = NULL; + bzstream->next_in = NULL; + bzstream->next_out = NULL; + bzstream->avail_in = 0; + bzstream->avail_out = 0; + + zip->memory = NULL; + zip->source = NULL; + zip->stream = NULL; + } + + + static FT_Error + ft_bzip2_file_reset( FT_BZip2File zip ) + { + FT_Stream stream = zip->source; + FT_Error error; + + + if ( !FT_STREAM_SEEK( 0 ) ) + { + bz_stream* bzstream = &zip->bzstream; + + + BZ2_bzDecompressEnd( bzstream ); + + bzstream->avail_in = 0; + bzstream->next_in = (char*)zip->input; + bzstream->avail_out = 0; + bzstream->next_out = (char*)zip->buffer; + + zip->limit = zip->buffer + FT_BZIP2_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + BZ2_bzDecompressInit( bzstream, 0, 0 ); + } + + return error; + } + + + static FT_Error + ft_bzip2_file_fill_input( FT_BZip2File zip ) + { + bz_stream* bzstream = &zip->bzstream; + FT_Stream stream = zip->source; + FT_ULong size; + + + if ( stream->read ) + { + size = stream->read( stream, stream->pos, zip->input, + FT_BZIP2_BUFFER_SIZE ); + if ( size == 0 ) + return Bzip2_Err_Invalid_Stream_Operation; + } + else + { + size = stream->size - stream->pos; + if ( size > FT_BZIP2_BUFFER_SIZE ) + size = FT_BZIP2_BUFFER_SIZE; + + if ( size == 0 ) + return Bzip2_Err_Invalid_Stream_Operation; + + FT_MEM_COPY( zip->input, stream->base + stream->pos, size ); + } + stream->pos += size; + + bzstream->next_in = (char*)zip->input; + bzstream->avail_in = size; + + return Bzip2_Err_Ok; + } + + + static FT_Error + ft_bzip2_file_fill_output( FT_BZip2File zip ) + { + bz_stream* bzstream = &zip->bzstream; + FT_Error error = Bzip2_Err_Ok; + + + zip->cursor = zip->buffer; + bzstream->next_out = (char*)zip->cursor; + bzstream->avail_out = FT_BZIP2_BUFFER_SIZE; + + while ( bzstream->avail_out > 0 ) + { + int err; + + + if ( bzstream->avail_in == 0 ) + { + error = ft_bzip2_file_fill_input( zip ); + if ( error ) + break; + } + + err = BZ2_bzDecompress( bzstream ); + + if ( err == BZ_STREAM_END ) + { + zip->limit = (FT_Byte*)bzstream->next_out; + if ( zip->limit == zip->cursor ) + error = Bzip2_Err_Invalid_Stream_Operation; + break; + } + else if ( err != BZ_OK ) + { + error = Bzip2_Err_Invalid_Stream_Operation; + break; + } + } + + return error; + } + + + /* fill output buffer; `count' must be <= FT_BZIP2_BUFFER_SIZE */ + static FT_Error + ft_bzip2_file_skip_output( FT_BZip2File zip, + FT_ULong count ) + { + FT_Error error = Bzip2_Err_Ok; + FT_ULong delta; + + + for (;;) + { + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_bzip2_file_fill_output( zip ); + if ( error ) + break; + } + + return error; + } + + + static FT_ULong + ft_bzip2_file_io( FT_BZip2File zip, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong result = 0; + FT_Error error; + + + /* Reset inflate stream if we're seeking backwards. */ + /* Yes, that is not too efficient, but it saves memory :-) */ + if ( pos < zip->pos ) + { + error = ft_bzip2_file_reset( zip ); + if ( error ) + goto Exit; + } + + /* skip unwanted bytes */ + if ( pos > zip->pos ) + { + error = ft_bzip2_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) ); + if ( error ) + goto Exit; + } + + if ( count == 0 ) + goto Exit; + + /* now read the data */ + for (;;) + { + FT_ULong delta; + + + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + FT_MEM_COPY( buffer, zip->cursor, delta ); + buffer += delta; + result += delta; + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_bzip2_file_fill_output( zip ); + if ( error ) + break; + } + + Exit: + return result; + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** B Z E M B E D D I N G S T R E A M *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + static void + ft_bzip2_stream_close( FT_Stream stream ) + { + FT_BZip2File zip = (FT_BZip2File)stream->descriptor.pointer; + FT_Memory memory = stream->memory; + + + if ( zip ) + { + /* finalize bzip file descriptor */ + ft_bzip2_file_done( zip ); + + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + } + } + + + static FT_ULong + ft_bzip2_stream_io( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_BZip2File zip = (FT_BZip2File)stream->descriptor.pointer; + + + return ft_bzip2_file_io( zip, pos, buffer, count ); + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenBzip2( FT_Stream stream, + FT_Stream source ) + { + FT_Error error; + FT_Memory memory = source->memory; + FT_BZip2File zip = NULL; + + + /* + * check the header right now; this prevents allocating unnecessary + * objects when we don't need them + */ + error = ft_bzip2_check_header( source ); + if ( error ) + goto Exit; + + FT_ZERO( stream ); + stream->memory = memory; + + if ( !FT_QNEW( zip ) ) + { + error = ft_bzip2_file_init( zip, stream, source ); + if ( error ) + { + FT_FREE( zip ); + goto Exit; + } + + stream->descriptor.pointer = zip; + } + + stream->size = 0x7FFFFFFFL; /* don't know the real size! */ + stream->pos = 0; + stream->base = 0; + stream->read = ft_bzip2_stream_io; + stream->close = ft_bzip2_stream_close; + + Exit: + return error; + } + +#else /* !FT_CONFIG_OPTION_USE_BZIP2 */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenBzip2( FT_Stream stream, + FT_Stream source ) + { + FT_UNUSED( stream ); + FT_UNUSED( source ); + + return Bzip2_Err_Unimplemented_Feature; + } + +#endif /* !FT_CONFIG_OPTION_USE_BZIP2 */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcache.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcache.c new file mode 100644 index 000000000..81d51c767 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcache.c @@ -0,0 +1,31 @@ +/***************************************************************************/ +/* */ +/* ftcache.c */ +/* */ +/* The FreeType Caching sub-system (body only). */ +/* */ +/* Copyright 2000-2001, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "ftcmru.c" +#include "ftcmanag.c" +#include "ftccache.c" +#include "ftccmap.c" +#include "ftcglyph.c" +#include "ftcimage.c" +#include "ftcsbits.c" +#include "ftcbasic.c" + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcbasic.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcbasic.c new file mode 100644 index 000000000..1a084bd6d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcbasic.c @@ -0,0 +1,855 @@ +/***************************************************************************/ +/* */ +/* ftcbasic.c */ +/* */ +/* The FreeType basic cache interface (body). */ +/* */ +/* Copyright 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_CACHE_H +#include "ftcglyph.h" +#include "ftcimage.h" +#include "ftcsbits.h" + +#include "ftccback.h" +#include "ftcerror.h" + +#define FT_COMPONENT trace_cache + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* + * These structures correspond to the FTC_Font and FTC_ImageDesc types + * that were defined in version 2.1.7. + */ + typedef struct FTC_OldFontRec_ + { + FTC_FaceID face_id; + FT_UShort pix_width; + FT_UShort pix_height; + + } FTC_OldFontRec, *FTC_OldFont; + + + typedef struct FTC_OldImageDescRec_ + { + FTC_OldFontRec font; + FT_UInt32 flags; + + } FTC_OldImageDescRec, *FTC_OldImageDesc; + + + /* + * Notice that FTC_OldImageDescRec and FTC_ImageTypeRec are nearly + * identical, bit-wise. The only difference is that the `width' and + * `height' fields are expressed as 16-bit integers in the old structure, + * and as normal `int' in the new one. + * + * We are going to perform a weird hack to detect which structure is + * being passed to the image and sbit caches. If the new structure's + * `width' is larger than 0x10000, we assume that we are really receiving + * an FTC_OldImageDesc. + */ + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* + * Basic Families + * + */ + typedef struct FTC_BasicAttrRec_ + { + FTC_ScalerRec scaler; + FT_UInt load_flags; + + } FTC_BasicAttrRec, *FTC_BasicAttrs; + +#define FTC_BASIC_ATTR_COMPARE( a, b ) \ + FT_BOOL( FTC_SCALER_COMPARE( &(a)->scaler, &(b)->scaler ) && \ + (a)->load_flags == (b)->load_flags ) + +#define FTC_BASIC_ATTR_HASH( a ) \ + ( FTC_SCALER_HASH( &(a)->scaler ) + 31*(a)->load_flags ) + + + typedef struct FTC_BasicQueryRec_ + { + FTC_GQueryRec gquery; + FTC_BasicAttrRec attrs; + + } FTC_BasicQueryRec, *FTC_BasicQuery; + + + typedef struct FTC_BasicFamilyRec_ + { + FTC_FamilyRec family; + FTC_BasicAttrRec attrs; + + } FTC_BasicFamilyRec, *FTC_BasicFamily; + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_basic_family_compare( FTC_MruNode ftcfamily, + FT_Pointer ftcquery ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FTC_BasicQuery query = (FTC_BasicQuery)ftcquery; + + + return FTC_BASIC_ATTR_COMPARE( &family->attrs, &query->attrs ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_basic_family_init( FTC_MruNode ftcfamily, + FT_Pointer ftcquery, + FT_Pointer ftccache ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FTC_BasicQuery query = (FTC_BasicQuery)ftcquery; + FTC_Cache cache = (FTC_Cache)ftccache; + + + FTC_Family_Init( FTC_FAMILY( family ), cache ); + family->attrs = query->attrs; + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + ftc_basic_family_get_count( FTC_Family ftcfamily, + FTC_Manager manager ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FT_Error error; + FT_Face face; + FT_UInt result = 0; + + + error = FTC_Manager_LookupFace( manager, family->attrs.scaler.face_id, + &face ); + + if ( error || !face ) + return result; + + if ( (FT_ULong)face->num_glyphs > FT_UINT_MAX || 0 > face->num_glyphs ) + { + FT_TRACE1(( "ftc_basic_family_get_count: too large number of glyphs " )); + FT_TRACE1(( "in this face, truncated\n", face->num_glyphs )); + } + + if ( !error ) + result = (FT_UInt)face->num_glyphs; + + return result; + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_basic_family_load_bitmap( FTC_Family ftcfamily, + FT_UInt gindex, + FTC_Manager manager, + FT_Face *aface ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FT_Error error; + FT_Size size; + + + error = FTC_Manager_LookupSize( manager, &family->attrs.scaler, &size ); + if ( !error ) + { + FT_Face face = size->face; + + + error = FT_Load_Glyph( face, gindex, + family->attrs.load_flags | FT_LOAD_RENDER ); + if ( !error ) + *aface = face; + } + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_basic_family_load_glyph( FTC_Family ftcfamily, + FT_UInt gindex, + FTC_Cache cache, + FT_Glyph *aglyph ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FT_Error error; + FTC_Scaler scaler = &family->attrs.scaler; + FT_Face face; + FT_Size size; + + + /* we will now load the glyph image */ + error = FTC_Manager_LookupSize( cache->manager, + scaler, + &size ); + if ( !error ) + { + face = size->face; + + error = FT_Load_Glyph( face, gindex, family->attrs.load_flags ); + if ( !error ) + { + if ( face->glyph->format == FT_GLYPH_FORMAT_BITMAP || + face->glyph->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* ok, copy it */ + FT_Glyph glyph; + + + error = FT_Get_Glyph( face->glyph, &glyph ); + if ( !error ) + { + *aglyph = glyph; + goto Exit; + } + } + else + error = FTC_Err_Invalid_Argument; + } + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_basic_gnode_compare_faceid( FTC_Node ftcgnode, + FT_Pointer ftcface_id, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_GNode gnode = (FTC_GNode)ftcgnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FTC_BasicFamily family = (FTC_BasicFamily)gnode->family; + FT_Bool result; + + + if ( list_changed ) + *list_changed = FALSE; + result = FT_BOOL( family->attrs.scaler.face_id == face_id ); + if ( result ) + { + /* we must call this function to avoid this node from appearing + * in later lookups with the same face_id! + */ + FTC_GNode_UnselectFamily( gnode, cache ); + } + return result; + } + + + /* + * + * basic image cache + * + */ + + FT_CALLBACK_TABLE_DEF + const FTC_IFamilyClassRec ftc_basic_image_family_class = + { + { + sizeof ( FTC_BasicFamilyRec ), + ftc_basic_family_compare, + ftc_basic_family_init, + 0, /* FTC_MruNode_ResetFunc */ + 0 /* FTC_MruNode_DoneFunc */ + }, + ftc_basic_family_load_glyph + }; + + + FT_CALLBACK_TABLE_DEF + const FTC_GCacheClassRec ftc_basic_image_cache_class = + { + { + ftc_inode_new, + ftc_inode_weight, + ftc_gnode_compare, + ftc_basic_gnode_compare_faceid, + ftc_inode_free, + + sizeof ( FTC_GCacheRec ), + ftc_gcache_init, + ftc_gcache_done + }, + (FTC_MruListClass)&ftc_basic_image_family_class + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_ImageCache_New( FTC_Manager manager, + FTC_ImageCache *acache ) + { + return FTC_GCache_New( manager, &ftc_basic_image_cache_class, + (FTC_GCache*)acache ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_ImageCache_Lookup( FTC_ImageCache cache, + FTC_ImageType type, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ) + { + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_Error error; + FT_PtrDist hash; + + + /* some argument checks are delayed to FTC_Cache_Lookup */ + if ( !aglyph ) + { + error = FTC_Err_Invalid_Argument; + goto Exit; + } + + *aglyph = NULL; + if ( anode ) + *anode = NULL; + +#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU ) + + /* + * This one is a major hack used to detect whether we are passed a + * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one. + */ + if ( (FT_ULong)type->width >= 0x10000L ) + { + FTC_OldImageDesc desc = (FTC_OldImageDesc)type; + + + query.attrs.scaler.face_id = desc->font.face_id; + query.attrs.scaler.width = desc->font.pix_width; + query.attrs.scaler.height = desc->font.pix_height; + query.attrs.load_flags = desc->flags; + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_Lookup: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (type->flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler.face_id = type->face_id; + query.attrs.scaler.width = type->width; + query.attrs.scaler.height = type->height; + query.attrs.load_flags = (FT_UInt)type->flags; + } + + query.attrs.scaler.pixel = 1; + query.attrs.scaler.x_res = 0; /* make compilers happy */ + query.attrs.scaler.y_res = 0; + + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex; + +#if 1 /* inlining is about 50% faster! */ + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_GNode_Compare, + hash, gindex, + &query, + node, + error ); +#else + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), + hash, gindex, + FTC_GQUERY( &query ), + &node ); +#endif + if ( !error ) + { + *aglyph = FTC_INODE( node )->glyph; + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + } + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_ImageCache_LookupScaler( FTC_ImageCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ) + { + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_Error error; + FT_PtrDist hash; + + + /* some argument checks are delayed to FTC_Cache_Lookup */ + if ( !aglyph || !scaler ) + { + error = FTC_Err_Invalid_Argument; + goto Exit; + } + + *aglyph = NULL; + if ( anode ) + *anode = NULL; + + /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */ + if ( load_flags > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_LookupScaler: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (load_flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler = scaler[0]; + query.attrs.load_flags = (FT_UInt)load_flags; + + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex; + + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_GNode_Compare, + hash, gindex, + &query, + node, + error ); + if ( !error ) + { + *aglyph = FTC_INODE( node )->glyph; + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + } + + Exit: + return error; + } + + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* yet another backwards-legacy structure */ + typedef struct FTC_OldImage_Desc_ + { + FTC_FontRec font; + FT_UInt image_type; + + } FTC_OldImage_Desc; + + +#define FTC_OLD_IMAGE_FORMAT( x ) ( (x) & 7 ) + + +#define ftc_old_image_format_bitmap 0x0000 +#define ftc_old_image_format_outline 0x0001 + +#define ftc_old_image_format_mask 0x000F + +#define ftc_old_image_flag_monochrome 0x0010 +#define ftc_old_image_flag_unhinted 0x0020 +#define ftc_old_image_flag_autohinted 0x0040 +#define ftc_old_image_flag_unscaled 0x0080 +#define ftc_old_image_flag_no_sbits 0x0100 + + /* monochrome bitmap */ +#define ftc_old_image_mono ftc_old_image_format_bitmap | \ + ftc_old_image_flag_monochrome + + /* anti-aliased bitmap */ +#define ftc_old_image_grays ftc_old_image_format_bitmap + + /* scaled outline */ +#define ftc_old_image_outline ftc_old_image_format_outline + + + static void + ftc_image_type_from_old_desc( FTC_ImageType typ, + FTC_OldImage_Desc* desc ) + { + typ->face_id = desc->font.face_id; + typ->width = desc->font.pix_width; + typ->height = desc->font.pix_height; + + /* convert image type flags to load flags */ + { + FT_UInt load_flags = FT_LOAD_DEFAULT; + FT_UInt type = desc->image_type; + + + /* determine load flags, depending on the font description's */ + /* image type */ + + if ( FTC_OLD_IMAGE_FORMAT( type ) == ftc_old_image_format_bitmap ) + { + if ( type & ftc_old_image_flag_monochrome ) + load_flags |= FT_LOAD_MONOCHROME; + + /* disable embedded bitmaps loading if necessary */ + if ( type & ftc_old_image_flag_no_sbits ) + load_flags |= FT_LOAD_NO_BITMAP; + } + else + { + /* we want an outline, don't load embedded bitmaps */ + load_flags |= FT_LOAD_NO_BITMAP; + + if ( type & ftc_old_image_flag_unscaled ) + load_flags |= FT_LOAD_NO_SCALE; + } + + /* always render glyphs to bitmaps */ + load_flags |= FT_LOAD_RENDER; + + if ( type & ftc_old_image_flag_unhinted ) + load_flags |= FT_LOAD_NO_HINTING; + + if ( type & ftc_old_image_flag_autohinted ) + load_flags |= FT_LOAD_FORCE_AUTOHINT; + + typ->flags = load_flags; + } + } + + + FT_EXPORT( FT_Error ) + FTC_Image_Cache_New( FTC_Manager manager, + FTC_ImageCache *acache ); + + FT_EXPORT( FT_Error ) + FTC_Image_Cache_Lookup( FTC_ImageCache icache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FT_Glyph *aglyph ); + + + FT_EXPORT_DEF( FT_Error ) + FTC_Image_Cache_New( FTC_Manager manager, + FTC_ImageCache *acache ) + { + return FTC_ImageCache_New( manager, (FTC_ImageCache*)acache ); + } + + + + FT_EXPORT_DEF( FT_Error ) + FTC_Image_Cache_Lookup( FTC_ImageCache icache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FT_Glyph *aglyph ) + { + FTC_ImageTypeRec type0; + + + if ( !desc ) + return FTC_Err_Invalid_Argument; + + ftc_image_type_from_old_desc( &type0, desc ); + + return FTC_ImageCache_Lookup( (FTC_ImageCache)icache, + &type0, + gindex, + aglyph, + NULL ); + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* + * + * basic small bitmap cache + * + */ + + + FT_CALLBACK_TABLE_DEF + const FTC_SFamilyClassRec ftc_basic_sbit_family_class = + { + { + sizeof( FTC_BasicFamilyRec ), + ftc_basic_family_compare, + ftc_basic_family_init, + 0, /* FTC_MruNode_ResetFunc */ + 0 /* FTC_MruNode_DoneFunc */ + }, + ftc_basic_family_get_count, + ftc_basic_family_load_bitmap + }; + + + FT_CALLBACK_TABLE_DEF + const FTC_GCacheClassRec ftc_basic_sbit_cache_class = + { + { + ftc_snode_new, + ftc_snode_weight, + ftc_snode_compare, + ftc_basic_gnode_compare_faceid, + ftc_snode_free, + + sizeof ( FTC_GCacheRec ), + ftc_gcache_init, + ftc_gcache_done + }, + (FTC_MruListClass)&ftc_basic_sbit_family_class + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_SBitCache_New( FTC_Manager manager, + FTC_SBitCache *acache ) + { + return FTC_GCache_New( manager, &ftc_basic_sbit_cache_class, + (FTC_GCache*)acache ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_SBitCache_Lookup( FTC_SBitCache cache, + FTC_ImageType type, + FT_UInt gindex, + FTC_SBit *ansbit, + FTC_Node *anode ) + { + FT_Error error; + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_PtrDist hash; + + + if ( anode ) + *anode = NULL; + + /* other argument checks delayed to FTC_Cache_Lookup */ + if ( !ansbit ) + return FTC_Err_Invalid_Argument; + + *ansbit = NULL; + +#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU ) + + /* This one is a major hack used to detect whether we are passed a + * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one. + */ + if ( (FT_ULong)type->width >= 0x10000L ) + { + FTC_OldImageDesc desc = (FTC_OldImageDesc)type; + + + query.attrs.scaler.face_id = desc->font.face_id; + query.attrs.scaler.width = desc->font.pix_width; + query.attrs.scaler.height = desc->font.pix_height; + query.attrs.load_flags = desc->flags; + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_Lookup: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (type->flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler.face_id = type->face_id; + query.attrs.scaler.width = type->width; + query.attrs.scaler.height = type->height; + query.attrs.load_flags = (FT_UInt)type->flags; + } + + query.attrs.scaler.pixel = 1; + query.attrs.scaler.x_res = 0; /* make compilers happy */ + query.attrs.scaler.y_res = 0; + + /* beware, the hash must be the same for all glyph ranges! */ + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + + gindex / FTC_SBIT_ITEMS_PER_NODE; + +#if 1 /* inlining is about 50% faster! */ + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_SNode_Compare, + hash, gindex, + &query, + node, + error ); +#else + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), + hash, + gindex, + FTC_GQUERY( &query ), + &node ); +#endif + if ( error ) + goto Exit; + + *ansbit = FTC_SNODE( node )->sbits + + ( gindex - FTC_GNODE( node )->gindex ); + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_SBitCache_LookupScaler( FTC_SBitCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FTC_SBit *ansbit, + FTC_Node *anode ) + { + FT_Error error; + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_PtrDist hash; + + + if ( anode ) + *anode = NULL; + + /* other argument checks delayed to FTC_Cache_Lookup */ + if ( !ansbit || !scaler ) + return FTC_Err_Invalid_Argument; + + *ansbit = NULL; + + /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */ + if ( load_flags > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_LookupScaler: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (load_flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler = scaler[0]; + query.attrs.load_flags = (FT_UInt)load_flags; + + /* beware, the hash must be the same for all glyph ranges! */ + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + + gindex / FTC_SBIT_ITEMS_PER_NODE; + + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_SNode_Compare, + hash, gindex, + &query, + node, + error ); + if ( error ) + goto Exit; + + *ansbit = FTC_SNODE( node )->sbits + + ( gindex - FTC_GNODE( node )->gindex ); + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + + Exit: + return error; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_EXPORT( FT_Error ) + FTC_SBit_Cache_New( FTC_Manager manager, + FTC_SBitCache *acache ); + + FT_EXPORT( FT_Error ) + FTC_SBit_Cache_Lookup( FTC_SBitCache cache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FTC_SBit *ansbit ); + + + FT_EXPORT_DEF( FT_Error ) + FTC_SBit_Cache_New( FTC_Manager manager, + FTC_SBitCache *acache ) + { + return FTC_SBitCache_New( manager, (FTC_SBitCache*)acache ); + } + + + FT_EXPORT_DEF( FT_Error ) + FTC_SBit_Cache_Lookup( FTC_SBitCache cache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FTC_SBit *ansbit ) + { + FTC_ImageTypeRec type0; + + + if ( !desc ) + return FTC_Err_Invalid_Argument; + + ftc_image_type_from_old_desc( &type0, desc ); + + return FTC_SBitCache_Lookup( (FTC_SBitCache)cache, + &type0, + gindex, + ansbit, + NULL ); + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftccache.c b/uppsrc/plugin/FT_fontsys/src/cache/ftccache.c new file mode 100644 index 000000000..eb8fb505a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftccache.c @@ -0,0 +1,626 @@ +/***************************************************************************/ +/* */ +/* ftccache.c */ +/* */ +/* The FreeType internal cache interface (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, */ +/* 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "ftcmanag.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + +#include "ftccback.h" +#include "ftcerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + + +#define FTC_HASH_MAX_LOAD 2 +#define FTC_HASH_MIN_LOAD 1 +#define FTC_HASH_SUB_LOAD ( FTC_HASH_MAX_LOAD - FTC_HASH_MIN_LOAD ) + + /* this one _must_ be a power of 2! */ +#define FTC_HASH_INITIAL_SIZE 8 + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE NODE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* add a new node to the head of the manager's circular MRU list */ + static void + ftc_node_mru_link( FTC_Node node, + FTC_Manager manager ) + { + void *nl = &manager->nodes_list; + + + FTC_MruNode_Prepend( (FTC_MruNode*)nl, + (FTC_MruNode)node ); + manager->num_nodes++; + } + + + /* remove a node from the manager's MRU list */ + static void + ftc_node_mru_unlink( FTC_Node node, + FTC_Manager manager ) + { + void *nl = &manager->nodes_list; + + + FTC_MruNode_Remove( (FTC_MruNode*)nl, + (FTC_MruNode)node ); + manager->num_nodes--; + } + + +#ifndef FTC_INLINE + + /* move a node to the head of the manager's MRU list */ + static void + ftc_node_mru_up( FTC_Node node, + FTC_Manager manager ) + { + FTC_MruNode_Up( (FTC_MruNode*)&manager->nodes_list, + (FTC_MruNode)node ); + } + + + /* get a top bucket for specified hash from cache, + * body for FTC_NODE__TOP_FOR_HASH( cache, hash ) + */ + FT_LOCAL_DEF( FTC_Node* ) + ftc_get_top_node_for_hash( FTC_Cache cache, + FT_PtrDist hash ) + { + FTC_Node* pnode; + FT_UInt idx; + + + idx = (FT_UInt)( hash & cache->mask ); + if ( idx < cache->p ) + idx = (FT_UInt)( hash & ( 2 * cache->mask + 1 ) ); + pnode = cache->buckets + idx; + return pnode; + } + +#endif /* !FTC_INLINE */ + + + /* Note that this function cannot fail. If we cannot re-size the + * buckets array appropriately, we simply degrade the hash table's + * performance! + */ + static void + ftc_cache_resize( FTC_Cache cache ) + { + for (;;) + { + FTC_Node node, *pnode; + FT_UFast p = cache->p; + FT_UFast mask = cache->mask; + FT_UFast count = mask + p + 1; /* number of buckets */ + + + /* do we need to shrink the buckets array? */ + if ( cache->slack < 0 ) + { + FTC_Node new_list = NULL; + + + /* try to expand the buckets array _before_ splitting + * the bucket lists + */ + if ( p >= mask ) + { + FT_Memory memory = cache->memory; + FT_Error error; + + + /* if we can't expand the array, leave immediately */ + if ( FT_RENEW_ARRAY( cache->buckets, + ( mask + 1 ) * 2, ( mask + 1 ) * 4 ) ) + break; + } + + /* split a single bucket */ + pnode = cache->buckets + p; + + for (;;) + { + node = *pnode; + if ( node == NULL ) + break; + + if ( node->hash & ( mask + 1 ) ) + { + *pnode = node->link; + node->link = new_list; + new_list = node; + } + else + pnode = &node->link; + } + + cache->buckets[p + mask + 1] = new_list; + + cache->slack += FTC_HASH_MAX_LOAD; + + if ( p >= mask ) + { + cache->mask = 2 * mask + 1; + cache->p = 0; + } + else + cache->p = p + 1; + } + + /* do we need to expand the buckets array? */ + else if ( cache->slack > (FT_Long)count * FTC_HASH_SUB_LOAD ) + { + FT_UFast old_index = p + mask; + FTC_Node* pold; + + + if ( old_index + 1 <= FTC_HASH_INITIAL_SIZE ) + break; + + if ( p == 0 ) + { + FT_Memory memory = cache->memory; + FT_Error error; + + + /* if we can't shrink the array, leave immediately */ + if ( FT_RENEW_ARRAY( cache->buckets, + ( mask + 1 ) * 2, mask + 1 ) ) + break; + + cache->mask >>= 1; + p = cache->mask; + } + else + p--; + + pnode = cache->buckets + p; + while ( *pnode ) + pnode = &(*pnode)->link; + + pold = cache->buckets + old_index; + *pnode = *pold; + *pold = NULL; + + cache->slack -= FTC_HASH_MAX_LOAD; + cache->p = p; + } + + /* otherwise, the hash table is balanced */ + else + break; + } + } + + + /* remove a node from its cache's hash table */ + static void + ftc_node_hash_unlink( FTC_Node node0, + FTC_Cache cache ) + { + FTC_Node *pnode = FTC_NODE__TOP_FOR_HASH( cache, node0->hash ); + + + for (;;) + { + FTC_Node node = *pnode; + + + if ( node == NULL ) + { + FT_TRACE0(( "ftc_node_hash_unlink: unknown node\n" )); + return; + } + + if ( node == node0 ) + break; + + pnode = &(*pnode)->link; + } + + *pnode = node0->link; + node0->link = NULL; + + cache->slack++; + ftc_cache_resize( cache ); + } + + + /* add a node to the `top' of its cache's hash table */ + static void + ftc_node_hash_link( FTC_Node node, + FTC_Cache cache ) + { + FTC_Node *pnode = FTC_NODE__TOP_FOR_HASH( cache, node->hash ); + + + node->link = *pnode; + *pnode = node; + + cache->slack--; + ftc_cache_resize( cache ); + } + + + /* remove a node from the cache manager */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_BASE_DEF( void ) +#else + FT_LOCAL_DEF( void ) +#endif + ftc_node_destroy( FTC_Node node, + FTC_Manager manager ) + { + FTC_Cache cache; + + +#ifdef FT_DEBUG_ERROR + /* find node's cache */ + if ( node->cache_index >= manager->num_caches ) + { + FT_TRACE0(( "ftc_node_destroy: invalid node handle\n" )); + return; + } +#endif + + cache = manager->caches[node->cache_index]; + +#ifdef FT_DEBUG_ERROR + if ( cache == NULL ) + { + FT_TRACE0(( "ftc_node_destroy: invalid node handle\n" )); + return; + } +#endif + + manager->cur_weight -= cache->clazz.node_weight( node, cache ); + + /* remove node from mru list */ + ftc_node_mru_unlink( node, manager ); + + /* remove node from cache's hash table */ + ftc_node_hash_unlink( node, cache ); + + /* now finalize it */ + cache->clazz.node_free( node, cache ); + +#if 0 + /* check, just in case of general corruption :-) */ + if ( manager->num_nodes == 0 ) + FT_TRACE0(( "ftc_node_destroy: invalid cache node count (%d)\n", + manager->num_nodes )); +#endif + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** ABSTRACT CACHE CLASS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + FTC_Cache_Init( FTC_Cache cache ) + { + return ftc_cache_init( cache ); + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_cache_init( FTC_Cache cache ) + { + FT_Memory memory = cache->memory; + FT_Error error; + + + cache->p = 0; + cache->mask = FTC_HASH_INITIAL_SIZE - 1; + cache->slack = FTC_HASH_INITIAL_SIZE * FTC_HASH_MAX_LOAD; + + (void)FT_NEW_ARRAY( cache->buckets, FTC_HASH_INITIAL_SIZE * 2 ); + return error; + } + + + static void + FTC_Cache_Clear( FTC_Cache cache ) + { + if ( cache && cache->buckets ) + { + FTC_Manager manager = cache->manager; + FT_UFast i; + FT_UFast count; + + + count = cache->p + cache->mask + 1; + + for ( i = 0; i < count; i++ ) + { + FTC_Node *pnode = cache->buckets + i, next, node = *pnode; + + + while ( node ) + { + next = node->link; + node->link = NULL; + + /* remove node from mru list */ + ftc_node_mru_unlink( node, manager ); + + /* now finalize it */ + manager->cur_weight -= cache->clazz.node_weight( node, cache ); + + cache->clazz.node_free( node, cache ); + node = next; + } + cache->buckets[i] = NULL; + } + ftc_cache_resize( cache ); + } + } + + + FT_LOCAL_DEF( void ) + ftc_cache_done( FTC_Cache cache ) + { + if ( cache->memory ) + { + FT_Memory memory = cache->memory; + + + FTC_Cache_Clear( cache ); + + FT_FREE( cache->buckets ); + cache->mask = 0; + cache->p = 0; + cache->slack = 0; + + cache->memory = NULL; + } + } + + + FT_LOCAL_DEF( void ) + FTC_Cache_Done( FTC_Cache cache ) + { + ftc_cache_done( cache ); + } + + + static void + ftc_cache_add( FTC_Cache cache, + FT_PtrDist hash, + FTC_Node node ) + { + node->hash = hash; + node->cache_index = (FT_UInt16)cache->index; + node->ref_count = 0; + + ftc_node_hash_link( node, cache ); + ftc_node_mru_link( node, cache->manager ); + + { + FTC_Manager manager = cache->manager; + + + manager->cur_weight += cache->clazz.node_weight( node, cache ); + + if ( manager->cur_weight >= manager->max_weight ) + { + node->ref_count++; + FTC_Manager_Compress( manager ); + node->ref_count--; + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + FTC_Cache_NewNode( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ) + { + FT_Error error; + FTC_Node node; + + + /* + * We use the FTC_CACHE_TRYLOOP macros to support out-of-memory + * errors (OOM) correctly, i.e., by flushing the cache progressively + * in order to make more room. + */ + + FTC_CACHE_TRYLOOP( cache ) + { + error = cache->clazz.node_new( &node, query, cache ); + } + FTC_CACHE_TRYLOOP_END( NULL ); + + if ( error ) + node = NULL; + else + { + /* don't assume that the cache has the same number of buckets, since + * our allocation request might have triggered global cache flushing + */ + ftc_cache_add( cache, hash, node ); + } + + *anode = node; + return error; + } + + +#ifndef FTC_INLINE + + FT_LOCAL_DEF( FT_Error ) + FTC_Cache_Lookup( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ) + { + FTC_Node* bucket; + FTC_Node* pnode; + FTC_Node node; + FT_Error error = FTC_Err_Ok; + FT_Bool list_changed = FALSE; + + FTC_Node_CompareFunc compare = cache->clazz.node_compare; + + + if ( cache == NULL || anode == NULL ) + return FTC_Err_Invalid_Argument; + + /* Go to the `top' node of the list sharing same masked hash */ + bucket = pnode = FTC_NODE__TOP_FOR_HASH( cache, hash ); + + /* Lookup a node with exactly same hash and queried properties. */ + /* NOTE: _nodcomp() may change the linked list to reduce memory. */ + for (;;) + { + node = *pnode; + if ( node == NULL ) + goto NewNode; + + if ( node->hash == hash && + compare( node, query, cache, &list_changed ) ) + break; + + pnode = &node->link; + } + + if ( list_changed ) + { + /* Update bucket by modified linked list */ + bucket = pnode = FTC_NODE__TOP_FOR_HASH( cache, hash ); + + /* Update pnode by modified linked list */ + while ( *pnode != node ) + { + if ( *pnode == NULL ) + { + FT_ERROR(( "FTC_Cache_Lookup: oops!!! node missing\n" )); + goto NewNode; + } + else + pnode = &((*pnode)->link); + } + } + + /* Reorder the list to move the found node to the `top' */ + if ( node != *bucket ) + { + *pnode = node->link; + node->link = *bucket; + *bucket = node; + } + + /* move to head of MRU list */ + { + FTC_Manager manager = cache->manager; + + + if ( node != manager->nodes_list ) + ftc_node_mru_up( node, manager ); + } + *anode = node; + + return error; + + NewNode: + return FTC_Cache_NewNode( cache, hash, query, anode ); + } + +#endif /* !FTC_INLINE */ + + + FT_LOCAL_DEF( void ) + FTC_Cache_RemoveFaceID( FTC_Cache cache, + FTC_FaceID face_id ) + { + FT_UFast i, count; + FTC_Manager manager = cache->manager; + FTC_Node frees = NULL; + + + count = cache->p + cache->mask + 1; + for ( i = 0; i < count; i++ ) + { + FTC_Node* bucket = cache->buckets + i; + FTC_Node* pnode = bucket; + + + for ( ;; ) + { + FTC_Node node = *pnode; + FT_Bool list_changed = FALSE; + + + if ( node == NULL ) + break; + + if ( cache->clazz.node_remove_faceid( node, face_id, + cache, &list_changed ) ) + { + *pnode = node->link; + node->link = frees; + frees = node; + } + else + pnode = &node->link; + } + } + + /* remove all nodes in the free list */ + while ( frees ) + { + FTC_Node node; + + + node = frees; + frees = node->link; + + manager->cur_weight -= cache->clazz.node_weight( node, cache ); + ftc_node_mru_unlink( node, manager ); + + cache->clazz.node_free( node, cache ); + + cache->slack++; + } + + ftc_cache_resize( cache ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftccache.h b/uppsrc/plugin/FT_fontsys/src/cache/ftccache.h new file mode 100644 index 000000000..d60984f77 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftccache.h @@ -0,0 +1,359 @@ +/***************************************************************************/ +/* */ +/* ftccache.h */ +/* */ +/* FreeType internal cache interface (specification). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, */ +/* 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCCACHE_H__ +#define __FTCCACHE_H__ + + +#include "ftcmru.h" + +FT_BEGIN_HEADER + +#define _FTC_FACE_ID_HASH( i ) \ + ((FT_PtrDist)(( (FT_PtrDist)(i) >> 3 ) ^ ( (FT_PtrDist)(i) << 7 ))) + + /* handle to cache object */ + typedef struct FTC_CacheRec_* FTC_Cache; + + /* handle to cache class */ + typedef const struct FTC_CacheClassRec_* FTC_CacheClass; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE NODE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Each cache controls one or more cache nodes. Each node is part of */ + /* the global_lru list of the manager. Its `data' field however is used */ + /* as a reference count for now. */ + /* */ + /* A node can be anything, depending on the type of information held by */ + /* the cache. It can be an individual glyph image, a set of bitmaps */ + /* glyphs for a given size, some metrics, etc. */ + /* */ + /*************************************************************************/ + + /* structure size should be 20 bytes on 32-bits machines */ + typedef struct FTC_NodeRec_ + { + FTC_MruNodeRec mru; /* circular mru list pointer */ + FTC_Node link; /* used for hashing */ + FT_PtrDist hash; /* used for hashing too */ + FT_UShort cache_index; /* index of cache the node belongs to */ + FT_Short ref_count; /* reference count for this node */ + + } FTC_NodeRec; + + +#define FTC_NODE( x ) ( (FTC_Node)(x) ) +#define FTC_NODE_P( x ) ( (FTC_Node*)(x) ) + +#define FTC_NODE__NEXT( x ) FTC_NODE( (x)->mru.next ) +#define FTC_NODE__PREV( x ) FTC_NODE( (x)->mru.prev ) + +#ifdef FTC_INLINE +#define FTC_NODE__TOP_FOR_HASH( cache, hash ) \ + ( ( cache )->buckets + \ + ( ( ( ( hash ) & ( cache )->mask ) < ( cache )->p ) \ + ? ( ( hash ) & ( ( cache )->mask * 2 + 1 ) ) \ + : ( ( hash ) & ( cache )->mask ) ) ) +#else + FT_LOCAL( FTC_Node* ) + ftc_get_top_node_for_hash( FTC_Cache cache, + FT_PtrDist hash ); +#define FTC_NODE__TOP_FOR_HASH( cache, hash ) \ + ftc_get_top_node_for_hash( ( cache ), ( hash ) ) +#endif + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_BASE( void ) + ftc_node_destroy( FTC_Node node, + FTC_Manager manager ); +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* initialize a new cache node */ + typedef FT_Error + (*FTC_Node_NewFunc)( FTC_Node *pnode, + FT_Pointer query, + FTC_Cache cache ); + + typedef FT_Offset + (*FTC_Node_WeightFunc)( FTC_Node node, + FTC_Cache cache ); + + /* compare a node to a given key pair */ + typedef FT_Bool + (*FTC_Node_CompareFunc)( FTC_Node node, + FT_Pointer key, + FTC_Cache cache, + FT_Bool* list_changed ); + + + typedef void + (*FTC_Node_FreeFunc)( FTC_Node node, + FTC_Cache cache ); + + typedef FT_Error + (*FTC_Cache_InitFunc)( FTC_Cache cache ); + + typedef void + (*FTC_Cache_DoneFunc)( FTC_Cache cache ); + + + typedef struct FTC_CacheClassRec_ + { + FTC_Node_NewFunc node_new; + FTC_Node_WeightFunc node_weight; + FTC_Node_CompareFunc node_compare; + FTC_Node_CompareFunc node_remove_faceid; + FTC_Node_FreeFunc node_free; + + FT_Offset cache_size; + FTC_Cache_InitFunc cache_init; + FTC_Cache_DoneFunc cache_done; + + } FTC_CacheClassRec; + + + /* each cache really implements a dynamic hash table to manage its nodes */ + typedef struct FTC_CacheRec_ + { + FT_UFast p; + FT_UFast mask; + FT_Long slack; + FTC_Node* buckets; + + FTC_CacheClassRec clazz; /* local copy, for speed */ + + FTC_Manager manager; + FT_Memory memory; + FT_UInt index; /* in manager's table */ + + FTC_CacheClass org_class; /* original class pointer */ + + } FTC_CacheRec; + + +#define FTC_CACHE( x ) ( (FTC_Cache)(x) ) +#define FTC_CACHE_P( x ) ( (FTC_Cache*)(x) ) + + + /* default cache initialize */ + FT_LOCAL( FT_Error ) + FTC_Cache_Init( FTC_Cache cache ); + + /* default cache finalizer */ + FT_LOCAL( void ) + FTC_Cache_Done( FTC_Cache cache ); + + /* Call this function to look up the cache. If no corresponding + * node is found, a new one is automatically created. This function + * is capable of flushing the cache adequately to make room for the + * new cache object. + */ + +#ifndef FTC_INLINE + FT_LOCAL( FT_Error ) + FTC_Cache_Lookup( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ); +#endif + + FT_LOCAL( FT_Error ) + FTC_Cache_NewNode( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ); + + /* Remove all nodes that relate to a given face_id. This is useful + * when un-installing fonts. Note that if a cache node relates to + * the face_id but is locked (i.e., has `ref_count > 0'), the node + * will _not_ be destroyed, but its internal face_id reference will + * be modified. + * + * The final result will be that the node will never come back + * in further lookup requests, and will be flushed on demand from + * the cache normally when its reference count reaches 0. + */ + FT_LOCAL( void ) + FTC_Cache_RemoveFaceID( FTC_Cache cache, + FTC_FaceID face_id ); + + +#ifdef FTC_INLINE + +#define FTC_CACHE_LOOKUP_CMP( cache, nodecmp, hash, query, node, error ) \ + FT_BEGIN_STMNT \ + FTC_Node *_bucket, *_pnode, _node; \ + FTC_Cache _cache = FTC_CACHE(cache); \ + FT_PtrDist _hash = (FT_PtrDist)(hash); \ + FTC_Node_CompareFunc _nodcomp = (FTC_Node_CompareFunc)(nodecmp); \ + FT_Bool _list_changed = FALSE; \ + \ + \ + error = FTC_Err_Ok; \ + node = NULL; \ + \ + /* Go to the `top' node of the list sharing same masked hash */ \ + _bucket = _pnode = FTC_NODE__TOP_FOR_HASH( _cache, _hash ); \ + \ + /* Look up a node with identical hash and queried properties. */ \ + /* NOTE: _nodcomp() may change the linked list to reduce memory. */ \ + for (;;) \ + { \ + _node = *_pnode; \ + if ( _node == NULL ) \ + goto _NewNode; \ + \ + if ( _node->hash == _hash && \ + _nodcomp( _node, query, _cache, &_list_changed ) ) \ + break; \ + \ + _pnode = &_node->link; \ + } \ + \ + if ( _list_changed ) \ + { \ + /* Update _bucket by possibly modified linked list */ \ + _bucket = _pnode = FTC_NODE__TOP_FOR_HASH( _cache, _hash ); \ + \ + /* Update _pnode by possibly modified linked list */ \ + while ( *_pnode != _node ) \ + { \ + if ( *_pnode == NULL ) \ + { \ + FT_ERROR(( "FTC_CACHE_LOOKUP_CMP: oops!!! node missing\n" )); \ + goto _NewNode; \ + } \ + else \ + _pnode = &((*_pnode)->link); \ + } \ + } \ + \ + /* Reorder the list to move the found node to the `top' */ \ + if ( _node != *_bucket ) \ + { \ + *_pnode = _node->link; \ + _node->link = *_bucket; \ + *_bucket = _node; \ + } \ + \ + /* Update MRU list */ \ + { \ + FTC_Manager _manager = _cache->manager; \ + void* _nl = &_manager->nodes_list; \ + \ + \ + if ( _node != _manager->nodes_list ) \ + FTC_MruNode_Up( (FTC_MruNode*)_nl, \ + (FTC_MruNode)_node ); \ + } \ + goto _Ok; \ + \ + _NewNode: \ + error = FTC_Cache_NewNode( _cache, _hash, query, &_node ); \ + \ + _Ok: \ + node = _node; \ + FT_END_STMNT + +#else /* !FTC_INLINE */ + +#define FTC_CACHE_LOOKUP_CMP( cache, nodecmp, hash, query, node, error ) \ + FT_BEGIN_STMNT \ + error = FTC_Cache_Lookup( FTC_CACHE( cache ), hash, query, \ + (FTC_Node*)&(node) ); \ + FT_END_STMNT + +#endif /* !FTC_INLINE */ + + + /* + * This macro, together with FTC_CACHE_TRYLOOP_END, defines a retry + * loop to flush the cache repeatedly in case of memory overflows. + * + * It is used when creating a new cache node, or within a lookup + * that needs to allocate data (e.g. the sbit cache lookup). + * + * Example: + * + * { + * FTC_CACHE_TRYLOOP( cache ) + * error = load_data( ... ); + * FTC_CACHE_TRYLOOP_END() + * } + * + */ +#define FTC_CACHE_TRYLOOP( cache ) \ + { \ + FTC_Manager _try_manager = FTC_CACHE( cache )->manager; \ + FT_UInt _try_count = 4; \ + \ + \ + for (;;) \ + { \ + FT_UInt _try_done; + + +#define FTC_CACHE_TRYLOOP_END( list_changed ) \ + if ( !error || error != FTC_Err_Out_Of_Memory ) \ + break; \ + \ + _try_done = FTC_Manager_FlushN( _try_manager, _try_count ); \ + if ( _try_done > 0 && ( list_changed ) ) \ + *(FT_Bool*)( list_changed ) = TRUE; \ + \ + if ( _try_done == 0 ) \ + break; \ + \ + if ( _try_done == _try_count ) \ + { \ + _try_count *= 2; \ + if ( _try_count < _try_done || \ + _try_count > _try_manager->num_nodes ) \ + _try_count = _try_manager->num_nodes; \ + } \ + } \ + } + + /* */ + +FT_END_HEADER + + +#endif /* __FTCCACHE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftccback.h b/uppsrc/plugin/FT_fontsys/src/cache/ftccback.h new file mode 100644 index 000000000..3f3e37910 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftccback.h @@ -0,0 +1,92 @@ +/***************************************************************************/ +/* */ +/* ftccback.h */ +/* */ +/* Callback functions of the caching sub-system (specification only). */ +/* */ +/* Copyright 2004, 2005, 2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __FTCCBACK_H__ +#define __FTCCBACK_H__ + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcmru.h" +#include "ftcimage.h" +#include "ftcmanag.h" +#include "ftcglyph.h" +#include "ftcsbits.h" + + + FT_LOCAL( void ) + ftc_inode_free( FTC_Node inode, + FTC_Cache cache ); + + FT_LOCAL( FT_Error ) + ftc_inode_new( FTC_Node *pinode, + FT_Pointer gquery, + FTC_Cache cache ); + + FT_LOCAL( FT_Offset ) + ftc_inode_weight( FTC_Node inode, + FTC_Cache cache ); + + + FT_LOCAL( void ) + ftc_snode_free( FTC_Node snode, + FTC_Cache cache ); + + FT_LOCAL( FT_Error ) + ftc_snode_new( FTC_Node *psnode, + FT_Pointer gquery, + FTC_Cache cache ); + + FT_LOCAL( FT_Offset ) + ftc_snode_weight( FTC_Node snode, + FTC_Cache cache ); + + FT_LOCAL( FT_Bool ) + ftc_snode_compare( FTC_Node snode, + FT_Pointer gquery, + FTC_Cache cache, + FT_Bool* list_changed ); + + + FT_LOCAL( FT_Bool ) + ftc_gnode_compare( FTC_Node gnode, + FT_Pointer gquery, + FTC_Cache cache, + FT_Bool* list_changed ); + + + FT_LOCAL( FT_Error ) + ftc_gcache_init( FTC_Cache cache ); + + FT_LOCAL( void ) + ftc_gcache_done( FTC_Cache cache ); + + + FT_LOCAL( FT_Error ) + ftc_cache_init( FTC_Cache cache ); + + FT_LOCAL( void ) + ftc_cache_done( FTC_Cache cache ); + +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + FT_LOCAL( void ) + ftc_node_destroy( FTC_Node node, + FTC_Manager manager ); +#endif + +#endif /* __FTCCBACK_H__ */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftccmap.c b/uppsrc/plugin/FT_fontsys/src/cache/ftccmap.c new file mode 100644 index 000000000..c45f1cf17 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftccmap.c @@ -0,0 +1,438 @@ +/***************************************************************************/ +/* */ +/* ftccmap.c */ +/* */ +/* FreeType CharMap cache (body) */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_CACHE_H +#include "ftcmanag.h" +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + +#include "ftccback.h" +#include "ftcerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + typedef enum FTC_OldCMapType_ + { + FTC_OLD_CMAP_BY_INDEX = 0, + FTC_OLD_CMAP_BY_ENCODING = 1, + FTC_OLD_CMAP_BY_ID = 2 + + } FTC_OldCMapType; + + + typedef struct FTC_OldCMapIdRec_ + { + FT_UInt platform; + FT_UInt encoding; + + } FTC_OldCMapIdRec, *FTC_OldCMapId; + + + typedef struct FTC_OldCMapDescRec_ + { + FTC_FaceID face_id; + FTC_OldCMapType type; + + union + { + FT_UInt index; + FT_Encoding encoding; + FTC_OldCMapIdRec id; + + } u; + + } FTC_OldCMapDescRec, *FTC_OldCMapDesc; + +#endif /* FT_CONFIG_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* Each FTC_CMapNode contains a simple array to map a range of character */ + /* codes to equivalent glyph indices. */ + /* */ + /* For now, the implementation is very basic: Each node maps a range of */ + /* 128 consecutive character codes to their corresponding glyph indices. */ + /* */ + /* We could do more complex things, but I don't think it is really very */ + /* useful. */ + /* */ + /*************************************************************************/ + + + /* number of glyph indices / character code per node */ +#define FTC_CMAP_INDICES_MAX 128 + + /* compute a query/node hash */ +#define FTC_CMAP_HASH( faceid, index, charcode ) \ + ( _FTC_FACE_ID_HASH( faceid ) + 211 * (index) + \ + ( (charcode) / FTC_CMAP_INDICES_MAX ) ) + + /* the charmap query */ + typedef struct FTC_CMapQueryRec_ + { + FTC_FaceID face_id; + FT_UInt cmap_index; + FT_UInt32 char_code; + + } FTC_CMapQueryRec, *FTC_CMapQuery; + +#define FTC_CMAP_QUERY( x ) ((FTC_CMapQuery)(x)) +#define FTC_CMAP_QUERY_HASH( x ) \ + FTC_CMAP_HASH( (x)->face_id, (x)->cmap_index, (x)->char_code ) + + /* the cmap cache node */ + typedef struct FTC_CMapNodeRec_ + { + FTC_NodeRec node; + FTC_FaceID face_id; + FT_UInt cmap_index; + FT_UInt32 first; /* first character in node */ + FT_UInt16 indices[FTC_CMAP_INDICES_MAX]; /* array of glyph indices */ + + } FTC_CMapNodeRec, *FTC_CMapNode; + +#define FTC_CMAP_NODE( x ) ( (FTC_CMapNode)( x ) ) +#define FTC_CMAP_NODE_HASH( x ) \ + FTC_CMAP_HASH( (x)->face_id, (x)->cmap_index, (x)->first ) + + /* if (indices[n] == FTC_CMAP_UNKNOWN), we assume that the corresponding */ + /* glyph indices haven't been queried through FT_Get_Glyph_Index() yet */ +#define FTC_CMAP_UNKNOWN ( (FT_UInt16)-1 ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CHARMAP NODES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( void ) + ftc_cmap_node_free( FTC_Node ftcnode, + FTC_Cache cache ) + { + FTC_CMapNode node = (FTC_CMapNode)ftcnode; + FT_Memory memory = cache->memory; + + + FT_FREE( node ); + } + + + /* initialize a new cmap node */ + FT_CALLBACK_DEF( FT_Error ) + ftc_cmap_node_new( FTC_Node *ftcanode, + FT_Pointer ftcquery, + FTC_Cache cache ) + { + FTC_CMapNode *anode = (FTC_CMapNode*)ftcanode; + FTC_CMapQuery query = (FTC_CMapQuery)ftcquery; + FT_Error error; + FT_Memory memory = cache->memory; + FTC_CMapNode node = NULL; + FT_UInt nn; + + + if ( !FT_NEW( node ) ) + { + node->face_id = query->face_id; + node->cmap_index = query->cmap_index; + node->first = (query->char_code / FTC_CMAP_INDICES_MAX) * + FTC_CMAP_INDICES_MAX; + + for ( nn = 0; nn < FTC_CMAP_INDICES_MAX; nn++ ) + node->indices[nn] = FTC_CMAP_UNKNOWN; + } + + *anode = node; + return error; + } + + + /* compute the weight of a given cmap node */ + FT_CALLBACK_DEF( FT_Offset ) + ftc_cmap_node_weight( FTC_Node cnode, + FTC_Cache cache ) + { + FT_UNUSED( cnode ); + FT_UNUSED( cache ); + + return sizeof ( *cnode ); + } + + + /* compare a cmap node to a given query */ + FT_CALLBACK_DEF( FT_Bool ) + ftc_cmap_node_compare( FTC_Node ftcnode, + FT_Pointer ftcquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_CMapNode node = (FTC_CMapNode)ftcnode; + FTC_CMapQuery query = (FTC_CMapQuery)ftcquery; + FT_UNUSED( cache ); + + + if ( list_changed ) + *list_changed = FALSE; + if ( node->face_id == query->face_id && + node->cmap_index == query->cmap_index ) + { + FT_UInt32 offset = (FT_UInt32)( query->char_code - node->first ); + + + return FT_BOOL( offset < FTC_CMAP_INDICES_MAX ); + } + + return 0; + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_cmap_node_remove_faceid( FTC_Node ftcnode, + FT_Pointer ftcface_id, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_CMapNode node = (FTC_CMapNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FT_UNUSED( cache ); + + + if ( list_changed ) + *list_changed = FALSE; + return FT_BOOL( node->face_id == face_id ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLYPH IMAGE CACHE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_TABLE_DEF + const FTC_CacheClassRec ftc_cmap_cache_class = + { + ftc_cmap_node_new, + ftc_cmap_node_weight, + ftc_cmap_node_compare, + ftc_cmap_node_remove_faceid, + ftc_cmap_node_free, + + sizeof ( FTC_CacheRec ), + ftc_cache_init, + ftc_cache_done, + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_CMapCache_New( FTC_Manager manager, + FTC_CMapCache *acache ) + { + return FTC_Manager_RegisterCache( manager, + &ftc_cmap_cache_class, + FTC_CACHE_P( acache ) ); + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* + * Unfortunately, it is not possible to support binary backwards + * compatibility in the cmap cache. The FTC_CMapCache_Lookup signature + * changes were too deep, and there is no clever hackish way to detect + * what kind of structure we are being passed. + * + * On the other hand it seems that no production code is using this + * function on Unix distributions. + */ + +#endif + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_UInt ) + FTC_CMapCache_Lookup( FTC_CMapCache cmap_cache, + FTC_FaceID face_id, + FT_Int cmap_index, + FT_UInt32 char_code ) + { + FTC_Cache cache = FTC_CACHE( cmap_cache ); + FTC_CMapQueryRec query; + FTC_Node node; + FT_Error error; + FT_UInt gindex = 0; + FT_PtrDist hash; + FT_Int no_cmap_change = 0; + + + if ( cmap_index < 0 ) + { + /* Treat a negative cmap index as a special value, meaning that you */ + /* don't want to change the FT_Face's character map through this */ + /* call. This can be useful if the face requester callback already */ + /* sets the face's charmap to the appropriate value. */ + + no_cmap_change = 1; + cmap_index = 0; + } + + if ( !cache ) + { + FT_TRACE0(( "FTC_CMapCache_Lookup: bad arguments, returning 0\n" )); + return 0; + } + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* + * If cmap_index is greater than the maximum number of cachable + * charmaps, we assume the request is from a legacy rogue client + * using old internal header. See include/config/ftoption.h. + */ + if ( cmap_index > FT_MAX_CHARMAP_CACHEABLE && !no_cmap_change ) + { + FTC_OldCMapDesc desc = (FTC_OldCMapDesc) face_id; + + + char_code = (FT_UInt32)cmap_index; + query.face_id = desc->face_id; + + + switch ( desc->type ) + { + case FTC_OLD_CMAP_BY_INDEX: + query.cmap_index = desc->u.index; + query.char_code = (FT_UInt32)cmap_index; + break; + + case FTC_OLD_CMAP_BY_ENCODING: + { + FT_Face face; + + + error = FTC_Manager_LookupFace( cache->manager, desc->face_id, + &face ); + if ( error ) + return 0; + + FT_Select_Charmap( face, desc->u.encoding ); + + return FT_Get_Char_Index( face, char_code ); + } + + default: + return 0; + } + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + query.face_id = face_id; + query.cmap_index = (FT_UInt)cmap_index; + query.char_code = char_code; + } + + hash = FTC_CMAP_HASH( face_id, cmap_index, char_code ); + +#if 1 + FTC_CACHE_LOOKUP_CMP( cache, ftc_cmap_node_compare, hash, &query, + node, error ); +#else + error = FTC_Cache_Lookup( cache, hash, &query, &node ); +#endif + if ( error ) + goto Exit; + + FT_ASSERT( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first ) < + FTC_CMAP_INDICES_MAX ); + + /* something rotten can happen with rogue clients */ + if ( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first >= + FTC_CMAP_INDICES_MAX ) ) + return 0; /* XXX: should return appropriate error */ + + gindex = FTC_CMAP_NODE( node )->indices[char_code - + FTC_CMAP_NODE( node )->first]; + if ( gindex == FTC_CMAP_UNKNOWN ) + { + FT_Face face; + + + gindex = 0; + + error = FTC_Manager_LookupFace( cache->manager, + FTC_CMAP_NODE( node )->face_id, + &face ); + if ( error ) + goto Exit; + +#ifdef FT_MAX_CHARMAP_CACHEABLE + /* something rotten can happen with rogue clients */ + if ( cmap_index > FT_MAX_CHARMAP_CACHEABLE ) + return 0; /* XXX: should return appropriate error */ +#endif + + if ( (FT_UInt)cmap_index < (FT_UInt)face->num_charmaps ) + { + FT_CharMap old, cmap = NULL; + + + old = face->charmap; + cmap = face->charmaps[cmap_index]; + + if ( old != cmap && !no_cmap_change ) + FT_Set_Charmap( face, cmap ); + + gindex = FT_Get_Char_Index( face, char_code ); + + if ( old != cmap && !no_cmap_change ) + FT_Set_Charmap( face, old ); + } + + FTC_CMAP_NODE( node )->indices[char_code - + FTC_CMAP_NODE( node )->first] + = (FT_UShort)gindex; + } + + Exit: + return gindex; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcerror.h b/uppsrc/plugin/FT_fontsys/src/cache/ftcerror.h new file mode 100644 index 000000000..5998d42da --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcerror.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* ftcerror.h */ +/* */ +/* Caching sub-system error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the caching sub-system error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __FTCERROR_H__ +#define __FTCERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX FTC_Err_ +#define FT_ERR_BASE FT_Mod_Err_Cache + +#include FT_ERRORS_H + +#endif /* __FTCERROR_H__ */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.c new file mode 100644 index 000000000..2790dfc7e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.c @@ -0,0 +1,219 @@ +/***************************************************************************/ +/* */ +/* ftcglyph.c */ +/* */ +/* FreeType Glyph Image (FT_Glyph) cache (body). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_CACHE_H +#include "ftcglyph.h" +#include FT_ERRORS_H + +#include "ftccback.h" +#include "ftcerror.h" + + + /* create a new chunk node, setting its cache index and ref count */ + FT_LOCAL_DEF( void ) + FTC_GNode_Init( FTC_GNode gnode, + FT_UInt gindex, + FTC_Family family ) + { + gnode->family = family; + gnode->gindex = gindex; + family->num_nodes++; + } + + + FT_LOCAL_DEF( void ) + FTC_GNode_UnselectFamily( FTC_GNode gnode, + FTC_Cache cache ) + { + FTC_Family family = gnode->family; + + + gnode->family = NULL; + if ( family && --family->num_nodes == 0 ) + FTC_FAMILY_FREE( family, cache ); + } + + + FT_LOCAL_DEF( void ) + FTC_GNode_Done( FTC_GNode gnode, + FTC_Cache cache ) + { + /* finalize the node */ + gnode->gindex = 0; + + FTC_GNode_UnselectFamily( gnode, cache ); + } + + + FT_LOCAL_DEF( FT_Bool ) + ftc_gnode_compare( FTC_Node ftcgnode, + FT_Pointer ftcgquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_GNode gnode = (FTC_GNode)ftcgnode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + FT_UNUSED( cache ); + + + if ( list_changed ) + *list_changed = FALSE; + return FT_BOOL( gnode->family == gquery->family && + gnode->gindex == gquery->gindex ); + } + + +#ifdef FTC_INLINE + + FT_LOCAL_DEF( FT_Bool ) + FTC_GNode_Compare( FTC_GNode gnode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + return ftc_gnode_compare( FTC_NODE( gnode ), gquery, + cache, list_changed ); + } + +#endif + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CHUNK SETS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + FTC_Family_Init( FTC_Family family, + FTC_Cache cache ) + { + FTC_GCacheClass clazz = FTC_CACHE__GCACHE_CLASS( cache ); + + + family->clazz = clazz->family_class; + family->num_nodes = 0; + family->cache = cache; + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_gcache_init( FTC_Cache ftccache ) + { + FTC_GCache cache = (FTC_GCache)ftccache; + FT_Error error; + + + error = FTC_Cache_Init( FTC_CACHE( cache ) ); + if ( !error ) + { + FTC_GCacheClass clazz = (FTC_GCacheClass)FTC_CACHE( cache )->org_class; + + FTC_MruList_Init( &cache->families, + clazz->family_class, + 0, /* no maximum here! */ + cache, + FTC_CACHE( cache )->memory ); + } + + return error; + } + + +#if 0 + + FT_LOCAL_DEF( FT_Error ) + FTC_GCache_Init( FTC_GCache cache ) + { + return ftc_gcache_init( FTC_CACHE( cache ) ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( void ) + ftc_gcache_done( FTC_Cache ftccache ) + { + FTC_GCache cache = (FTC_GCache)ftccache; + + + FTC_Cache_Done( (FTC_Cache)cache ); + FTC_MruList_Done( &cache->families ); + } + + +#if 0 + + FT_LOCAL_DEF( void ) + FTC_GCache_Done( FTC_GCache cache ) + { + ftc_gcache_done( FTC_CACHE( cache ) ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Error ) + FTC_GCache_New( FTC_Manager manager, + FTC_GCacheClass clazz, + FTC_GCache *acache ) + { + return FTC_Manager_RegisterCache( manager, (FTC_CacheClass)clazz, + (FTC_Cache*)acache ); + } + + +#ifndef FTC_INLINE + + FT_LOCAL_DEF( FT_Error ) + FTC_GCache_Lookup( FTC_GCache cache, + FT_PtrDist hash, + FT_UInt gindex, + FTC_GQuery query, + FTC_Node *anode ) + { + FT_Error error; + + + query->gindex = gindex; + + FTC_MRULIST_LOOKUP( &cache->families, query, query->family, error ); + if ( !error ) + { + FTC_Family family = query->family; + + + /* prevent the family from being destroyed too early when an */ + /* out-of-memory condition occurs during glyph node initialization. */ + family->num_nodes++; + + error = FTC_Cache_Lookup( FTC_CACHE( cache ), hash, query, anode ); + + if ( --family->num_nodes == 0 ) + FTC_FAMILY_FREE( family, cache ); + } + return error; + } + +#endif /* !FTC_INLINE */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.h b/uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.h new file mode 100644 index 000000000..3c8f525d5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcglyph.h @@ -0,0 +1,329 @@ +/***************************************************************************/ +/* */ +/* ftcglyph.h */ +/* */ +/* FreeType abstract glyph cache (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * + * FTC_GCache is an _abstract_ cache object optimized to store glyph + * data. It works as follows: + * + * - It manages FTC_GNode objects. Each one of them can hold one or more + * glyph `items'. Item types are not specified in the FTC_GCache but + * in classes that extend it. + * + * - Glyph attributes, like face ID, character size, render mode, etc., + * can be grouped into abstract `glyph families'. This avoids storing + * the attributes within the FTC_GCache, since it is likely that many + * FTC_GNodes will belong to the same family in typical uses. + * + * - Each FTC_GNode is thus an FTC_Node with two additional fields: + * + * * gindex: A glyph index, or the first index in a glyph range. + * * family: A pointer to a glyph `family'. + * + * - Family types are not fully specific in the FTC_Family type, but + * by classes that extend it. + * + * Note that both FTC_ImageCache and FTC_SBitCache extend FTC_GCache. + * They share an FTC_Family sub-class called FTC_BasicFamily which is + * used to store the following data: face ID, pixel/point sizes, load + * flags. For more details see the file `src/cache/ftcbasic.c'. + * + * Client applications can extend FTC_GNode with their own FTC_GNode + * and FTC_Family sub-classes to implement more complex caches (e.g., + * handling automatic synthesis, like obliquing & emboldening, colored + * glyphs, etc.). + * + * See also the FTC_ICache & FTC_SCache classes in `ftcimage.h' and + * `ftcsbits.h', which both extend FTC_GCache with additional + * optimizations. + * + * A typical FTC_GCache implementation must provide at least the + * following: + * + * - FTC_GNode sub-class, e.g. MyNode, with relevant methods: + * my_node_new (must call FTC_GNode_Init) + * my_node_free (must call FTC_GNode_Done) + * my_node_compare (must call FTC_GNode_Compare) + * my_node_remove_faceid (must call ftc_gnode_unselect in case + * of match) + * + * - FTC_Family sub-class, e.g. MyFamily, with relevant methods: + * my_family_compare + * my_family_init + * my_family_reset (optional) + * my_family_done + * + * - FTC_GQuery sub-class, e.g. MyQuery, to hold cache-specific query + * data. + * + * - Constant structures for a FTC_GNodeClass. + * + * - MyCacheNew() can be implemented easily as a call to the convenience + * function FTC_GCache_New. + * + * - MyCacheLookup with a call to FTC_GCache_Lookup. This function will + * automatically: + * + * - Search for the corresponding family in the cache, or create + * a new one if necessary. Put it in FTC_GQUERY(myquery).family + * + * - Call FTC_Cache_Lookup. + * + * If it returns NULL, you should create a new node, then call + * ftc_cache_add as usual. + */ + + + /*************************************************************************/ + /* */ + /* Important: The functions defined in this file are only used to */ + /* implement an abstract glyph cache class. You need to */ + /* provide additional logic to implement a complete cache. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********* *********/ + /********* WARNING, THIS IS BETA CODE. *********/ + /********* *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifndef __FTCGLYPH_H__ +#define __FTCGLYPH_H__ + + +#include <freetype/ft2build.h> +#include "ftcmanag.h" + + +FT_BEGIN_HEADER + + + /* + * We can group glyphs into `families'. Each family correspond to a + * given face ID, character size, transform, etc. + * + * Families are implemented as MRU list nodes. They are + * reference-counted. + */ + + typedef struct FTC_FamilyRec_ + { + FTC_MruNodeRec mrunode; + FT_UInt num_nodes; /* current number of nodes in this family */ + FTC_Cache cache; + FTC_MruListClass clazz; + + } FTC_FamilyRec, *FTC_Family; + +#define FTC_FAMILY(x) ( (FTC_Family)(x) ) +#define FTC_FAMILY_P(x) ( (FTC_Family*)(x) ) + + + typedef struct FTC_GNodeRec_ + { + FTC_NodeRec node; + FTC_Family family; + FT_UInt gindex; + + } FTC_GNodeRec, *FTC_GNode; + +#define FTC_GNODE( x ) ( (FTC_GNode)(x) ) +#define FTC_GNODE_P( x ) ( (FTC_GNode*)(x) ) + + + typedef struct FTC_GQueryRec_ + { + FT_UInt gindex; + FTC_Family family; + + } FTC_GQueryRec, *FTC_GQuery; + +#define FTC_GQUERY( x ) ( (FTC_GQuery)(x) ) + + + /*************************************************************************/ + /* */ + /* These functions are exported so that they can be called from */ + /* user-provided cache classes; otherwise, they are really part of the */ + /* cache sub-system internals. */ + /* */ + + /* must be called by derived FTC_Node_InitFunc routines */ + FT_LOCAL( void ) + FTC_GNode_Init( FTC_GNode node, + FT_UInt gindex, /* glyph index for node */ + FTC_Family family ); + +#ifdef FTC_INLINE + + /* returns TRUE iff the query's glyph index correspond to the node; */ + /* this assumes that the `family' and `hash' fields of the query are */ + /* already correctly set */ + FT_LOCAL( FT_Bool ) + FTC_GNode_Compare( FTC_GNode gnode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed ); + +#endif + + /* call this function to clear a node's family -- this is necessary */ + /* to implement the `node_remove_faceid' cache method correctly */ + FT_LOCAL( void ) + FTC_GNode_UnselectFamily( FTC_GNode gnode, + FTC_Cache cache ); + + /* must be called by derived FTC_Node_DoneFunc routines */ + FT_LOCAL( void ) + FTC_GNode_Done( FTC_GNode node, + FTC_Cache cache ); + + + FT_LOCAL( void ) + FTC_Family_Init( FTC_Family family, + FTC_Cache cache ); + + typedef struct FTC_GCacheRec_ + { + FTC_CacheRec cache; + FTC_MruListRec families; + + } FTC_GCacheRec, *FTC_GCache; + +#define FTC_GCACHE( x ) ((FTC_GCache)(x)) + + +#if 0 + /* can be used as @FTC_Cache_InitFunc */ + FT_LOCAL( FT_Error ) + FTC_GCache_Init( FTC_GCache cache ); +#endif + + +#if 0 + /* can be used as @FTC_Cache_DoneFunc */ + FT_LOCAL( void ) + FTC_GCache_Done( FTC_GCache cache ); +#endif + + + /* the glyph cache class adds fields for the family implementation */ + typedef struct FTC_GCacheClassRec_ + { + FTC_CacheClassRec clazz; + FTC_MruListClass family_class; + + } FTC_GCacheClassRec; + + typedef const FTC_GCacheClassRec* FTC_GCacheClass; + +#define FTC_GCACHE_CLASS( x ) ((FTC_GCacheClass)(x)) + +#define FTC_CACHE__GCACHE_CLASS( x ) \ + FTC_GCACHE_CLASS( FTC_CACHE(x)->org_class ) +#define FTC_CACHE__FAMILY_CLASS( x ) \ + ( (FTC_MruListClass)FTC_CACHE__GCACHE_CLASS( x )->family_class ) + + + /* convenience function; use it instead of FTC_Manager_Register_Cache */ + FT_LOCAL( FT_Error ) + FTC_GCache_New( FTC_Manager manager, + FTC_GCacheClass clazz, + FTC_GCache *acache ); + +#ifndef FTC_INLINE + FT_LOCAL( FT_Error ) + FTC_GCache_Lookup( FTC_GCache cache, + FT_PtrDist hash, + FT_UInt gindex, + FTC_GQuery query, + FTC_Node *anode ); +#endif + + + /* */ + + +#define FTC_FAMILY_FREE( family, cache ) \ + FTC_MruList_Remove( &FTC_GCACHE((cache))->families, \ + (FTC_MruNode)(family) ) + + +#ifdef FTC_INLINE + +#define FTC_GCACHE_LOOKUP_CMP( cache, famcmp, nodecmp, hash, \ + gindex, query, node, error ) \ + FT_BEGIN_STMNT \ + FTC_GCache _gcache = FTC_GCACHE( cache ); \ + FTC_GQuery _gquery = (FTC_GQuery)( query ); \ + FTC_MruNode_CompareFunc _fcompare = (FTC_MruNode_CompareFunc)(famcmp); \ + FTC_MruNode _mrunode; \ + \ + \ + _gquery->gindex = (gindex); \ + \ + FTC_MRULIST_LOOKUP_CMP( &_gcache->families, _gquery, _fcompare, \ + _mrunode, error ); \ + _gquery->family = FTC_FAMILY( _mrunode ); \ + if ( !error ) \ + { \ + FTC_Family _gqfamily = _gquery->family; \ + \ + \ + _gqfamily->num_nodes++; \ + \ + FTC_CACHE_LOOKUP_CMP( cache, nodecmp, hash, query, node, error ); \ + \ + if ( --_gqfamily->num_nodes == 0 ) \ + FTC_FAMILY_FREE( _gqfamily, _gcache ); \ + } \ + FT_END_STMNT + /* */ + +#else /* !FTC_INLINE */ + +#define FTC_GCACHE_LOOKUP_CMP( cache, famcmp, nodecmp, hash, \ + gindex, query, node, error ) \ + FT_BEGIN_STMNT \ + \ + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), hash, gindex, \ + FTC_GQUERY( query ), &node ); \ + \ + FT_END_STMNT + +#endif /* !FTC_INLINE */ + + +FT_END_HEADER + + +#endif /* __FTCGLYPH_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcimage.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcimage.c new file mode 100644 index 000000000..45a521371 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcimage.c @@ -0,0 +1,163 @@ +/***************************************************************************/ +/* */ +/* ftcimage.c */ +/* */ +/* FreeType Image cache (body). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcimage.h" +#include FT_INTERNAL_MEMORY_H + +#include "ftccback.h" +#include "ftcerror.h" + + + /* finalize a given glyph image node */ + FT_LOCAL_DEF( void ) + ftc_inode_free( FTC_Node ftcinode, + FTC_Cache cache ) + { + FTC_INode inode = (FTC_INode)ftcinode; + FT_Memory memory = cache->memory; + + + if ( inode->glyph ) + { + FT_Done_Glyph( inode->glyph ); + inode->glyph = NULL; + } + + FTC_GNode_Done( FTC_GNODE( inode ), cache ); + FT_FREE( inode ); + } + + + FT_LOCAL_DEF( void ) + FTC_INode_Free( FTC_INode inode, + FTC_Cache cache ) + { + ftc_inode_free( FTC_NODE( inode ), cache ); + } + + + /* initialize a new glyph image node */ + FT_LOCAL_DEF( FT_Error ) + FTC_INode_New( FTC_INode *pinode, + FTC_GQuery gquery, + FTC_Cache cache ) + { + FT_Memory memory = cache->memory; + FT_Error error; + FTC_INode inode = NULL; + + + if ( !FT_NEW( inode ) ) + { + FTC_GNode gnode = FTC_GNODE( inode ); + FTC_Family family = gquery->family; + FT_UInt gindex = gquery->gindex; + FTC_IFamilyClass clazz = FTC_CACHE__IFAMILY_CLASS( cache ); + + + /* initialize its inner fields */ + FTC_GNode_Init( gnode, gindex, family ); + + /* we will now load the glyph image */ + error = clazz->family_load_glyph( family, gindex, cache, + &inode->glyph ); + if ( error ) + { + FTC_INode_Free( inode, cache ); + inode = NULL; + } + } + + *pinode = inode; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_inode_new( FTC_Node *ftcpinode, + FT_Pointer ftcgquery, + FTC_Cache cache ) + { + FTC_INode *pinode = (FTC_INode*)ftcpinode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + + + return FTC_INode_New( pinode, gquery, cache ); + } + + + FT_LOCAL_DEF( FT_Offset ) + ftc_inode_weight( FTC_Node ftcinode, + FTC_Cache ftccache ) + { + FTC_INode inode = (FTC_INode)ftcinode; + FT_Offset size = 0; + FT_Glyph glyph = inode->glyph; + + FT_UNUSED( ftccache ); + + + switch ( glyph->format ) + { + case FT_GLYPH_FORMAT_BITMAP: + { + FT_BitmapGlyph bitg; + + + bitg = (FT_BitmapGlyph)glyph; + size = bitg->bitmap.rows * ft_labs( bitg->bitmap.pitch ) + + sizeof ( *bitg ); + } + break; + + case FT_GLYPH_FORMAT_OUTLINE: + { + FT_OutlineGlyph outg; + + + outg = (FT_OutlineGlyph)glyph; + size = outg->outline.n_points * + ( sizeof ( FT_Vector ) + sizeof ( FT_Byte ) ) + + outg->outline.n_contours * sizeof ( FT_Short ) + + sizeof ( *outg ); + } + break; + + default: + ; + } + + size += sizeof ( *inode ); + return size; + } + + +#if 0 + + FT_LOCAL_DEF( FT_Offset ) + FTC_INode_Weight( FTC_INode inode ) + { + return ftc_inode_weight( FTC_NODE( inode ), NULL ); + } + +#endif /* 0 */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcimage.h b/uppsrc/plugin/FT_fontsys/src/cache/ftcimage.h new file mode 100644 index 000000000..48a2588dd --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcimage.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* ftcimage.h */ +/* */ +/* FreeType Generic Image cache (specification) */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * FTC_ICache is an _abstract_ cache used to store a single FT_Glyph + * image per cache node. + * + * FTC_ICache extends FTC_GCache. For an implementation example, + * see FTC_ImageCache in `src/cache/ftbasic.c'. + */ + + + /*************************************************************************/ + /* */ + /* Each image cache really manages FT_Glyph objects. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTCIMAGE_H__ +#define __FTCIMAGE_H__ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcglyph.h" + +FT_BEGIN_HEADER + + + /* the FT_Glyph image node type - we store only 1 glyph per node */ + typedef struct FTC_INodeRec_ + { + FTC_GNodeRec gnode; + FT_Glyph glyph; + + } FTC_INodeRec, *FTC_INode; + +#define FTC_INODE( x ) ( (FTC_INode)( x ) ) +#define FTC_INODE_GINDEX( x ) FTC_GNODE(x)->gindex +#define FTC_INODE_FAMILY( x ) FTC_GNODE(x)->family + + typedef FT_Error + (*FTC_IFamily_LoadGlyphFunc)( FTC_Family family, + FT_UInt gindex, + FTC_Cache cache, + FT_Glyph *aglyph ); + + typedef struct FTC_IFamilyClassRec_ + { + FTC_MruListClassRec clazz; + FTC_IFamily_LoadGlyphFunc family_load_glyph; + + } FTC_IFamilyClassRec; + + typedef const FTC_IFamilyClassRec* FTC_IFamilyClass; + +#define FTC_IFAMILY_CLASS( x ) ((FTC_IFamilyClass)(x)) + +#define FTC_CACHE__IFAMILY_CLASS( x ) \ + FTC_IFAMILY_CLASS( FTC_CACHE__GCACHE_CLASS(x)->family_class ) + + + /* can be used as a @FTC_Node_FreeFunc */ + FT_LOCAL( void ) + FTC_INode_Free( FTC_INode inode, + FTC_Cache cache ); + + /* Can be used as @FTC_Node_NewFunc. `gquery.index' and `gquery.family' + * must be set correctly. This function will call the `family_load_glyph' + * method to load the FT_Glyph into the cache node. + */ + FT_LOCAL( FT_Error ) + FTC_INode_New( FTC_INode *pinode, + FTC_GQuery gquery, + FTC_Cache cache ); + +#if 0 + /* can be used as @FTC_Node_WeightFunc */ + FT_LOCAL( FT_ULong ) + FTC_INode_Weight( FTC_INode inode ); +#endif + + + /* */ + +FT_END_HEADER + +#endif /* __FTCIMAGE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.c new file mode 100644 index 000000000..496624c09 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.c @@ -0,0 +1,743 @@ +/***************************************************************************/ +/* */ +/* ftcmanag.c */ +/* */ +/* FreeType Cache Manager (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcmanag.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_SIZES_H + +#include "ftccback.h" +#include "ftcerror.h" + +#ifdef FT_CONFIG_OPTION_PIC +#error "cache system does not support PIC yet" +#endif + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + +#define FTC_LRU_GET_MANAGER( lru ) ( (FTC_Manager)(lru)->user_data ) + + + static FT_Error + ftc_scaler_lookup_size( FTC_Manager manager, + FTC_Scaler scaler, + FT_Size *asize ) + { + FT_Face face; + FT_Size size = NULL; + FT_Error error; + + + error = FTC_Manager_LookupFace( manager, scaler->face_id, &face ); + if ( error ) + goto Exit; + + error = FT_New_Size( face, &size ); + if ( error ) + goto Exit; + + FT_Activate_Size( size ); + + if ( scaler->pixel ) + error = FT_Set_Pixel_Sizes( face, scaler->width, scaler->height ); + else + error = FT_Set_Char_Size( face, scaler->width, scaler->height, + scaler->x_res, scaler->y_res ); + if ( error ) + { + FT_Done_Size( size ); + size = NULL; + } + + Exit: + *asize = size; + return error; + } + + + typedef struct FTC_SizeNodeRec_ + { + FTC_MruNodeRec node; + FT_Size size; + FTC_ScalerRec scaler; + + } FTC_SizeNodeRec, *FTC_SizeNode; + +#define FTC_SIZE_NODE( x ) ( (FTC_SizeNode)( x ) ) + + + FT_CALLBACK_DEF( void ) + ftc_size_node_done( FTC_MruNode ftcnode, + FT_Pointer data ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FT_Size size = node->size; + FT_UNUSED( data ); + + + if ( size ) + FT_Done_Size( size ); + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_size_node_compare( FTC_MruNode ftcnode, + FT_Pointer ftcscaler ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_Scaler scaler = (FTC_Scaler)ftcscaler; + FTC_Scaler scaler0 = &node->scaler; + + + if ( FTC_SCALER_COMPARE( scaler0, scaler ) ) + { + FT_Activate_Size( node->size ); + return 1; + } + return 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_size_node_init( FTC_MruNode ftcnode, + FT_Pointer ftcscaler, + FT_Pointer ftcmanager ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_Scaler scaler = (FTC_Scaler)ftcscaler; + FTC_Manager manager = (FTC_Manager)ftcmanager; + + + node->scaler = scaler[0]; + + return ftc_scaler_lookup_size( manager, scaler, &node->size ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_size_node_reset( FTC_MruNode ftcnode, + FT_Pointer ftcscaler, + FT_Pointer ftcmanager ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_Scaler scaler = (FTC_Scaler)ftcscaler; + FTC_Manager manager = (FTC_Manager)ftcmanager; + + + FT_Done_Size( node->size ); + + node->scaler = scaler[0]; + + return ftc_scaler_lookup_size( manager, scaler, &node->size ); + } + + + FT_CALLBACK_TABLE_DEF + const FTC_MruListClassRec ftc_size_list_class = + { + sizeof ( FTC_SizeNodeRec ), + ftc_size_node_compare, + ftc_size_node_init, + ftc_size_node_reset, + ftc_size_node_done + }; + + + /* helper function used by ftc_face_node_done */ + static FT_Bool + ftc_size_node_compare_faceid( FTC_MruNode ftcnode, + FT_Pointer ftcface_id ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + + + return FT_BOOL( node->scaler.face_id == face_id ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_LookupSize( FTC_Manager manager, + FTC_Scaler scaler, + FT_Size *asize ) + { + FT_Error error; + FTC_MruNode mrunode; + + + if ( asize == NULL ) + return FTC_Err_Invalid_Argument; + + *asize = NULL; + + if ( !manager ) + return FTC_Err_Invalid_Cache_Handle; + +#ifdef FTC_INLINE + + FTC_MRULIST_LOOKUP_CMP( &manager->sizes, scaler, ftc_size_node_compare, + mrunode, error ); + +#else + error = FTC_MruList_Lookup( &manager->sizes, scaler, &mrunode ); +#endif + + if ( !error ) + *asize = FTC_SIZE_NODE( mrunode )->size; + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FACE MRU IMPLEMENTATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct FTC_FaceNodeRec_ + { + FTC_MruNodeRec node; + FTC_FaceID face_id; + FT_Face face; + + } FTC_FaceNodeRec, *FTC_FaceNode; + +#define FTC_FACE_NODE( x ) ( ( FTC_FaceNode )( x ) ) + + + FT_CALLBACK_DEF( FT_Error ) + ftc_face_node_init( FTC_MruNode ftcnode, + FT_Pointer ftcface_id, + FT_Pointer ftcmanager ) + { + FTC_FaceNode node = (FTC_FaceNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FTC_Manager manager = (FTC_Manager)ftcmanager; + FT_Error error; + + + node->face_id = face_id; + + error = manager->request_face( face_id, + manager->library, + manager->request_data, + &node->face ); + if ( !error ) + { + /* destroy initial size object; it will be re-created later */ + if ( node->face->size ) + FT_Done_Size( node->face->size ); + } + + return error; + } + + + FT_CALLBACK_DEF( void ) + ftc_face_node_done( FTC_MruNode ftcnode, + FT_Pointer ftcmanager ) + { + FTC_FaceNode node = (FTC_FaceNode)ftcnode; + FTC_Manager manager = (FTC_Manager)ftcmanager; + + + /* we must begin by removing all scalers for the target face */ + /* from the manager's list */ + FTC_MruList_RemoveSelection( &manager->sizes, + ftc_size_node_compare_faceid, + node->face_id ); + + /* all right, we can discard the face now */ + FT_Done_Face( node->face ); + node->face = NULL; + node->face_id = NULL; + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_face_node_compare( FTC_MruNode ftcnode, + FT_Pointer ftcface_id ) + { + FTC_FaceNode node = (FTC_FaceNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + + + return FT_BOOL( node->face_id == face_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FTC_MruListClassRec ftc_face_list_class = + { + sizeof ( FTC_FaceNodeRec), + + ftc_face_node_compare, + ftc_face_node_init, + 0, /* FTC_MruNode_ResetFunc */ + ftc_face_node_done + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_LookupFace( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ) + { + FT_Error error; + FTC_MruNode mrunode; + + + if ( aface == NULL ) + return FTC_Err_Invalid_Argument; + + *aface = NULL; + + if ( !manager ) + return FTC_Err_Invalid_Cache_Handle; + + /* we break encapsulation for the sake of speed */ +#ifdef FTC_INLINE + + FTC_MRULIST_LOOKUP_CMP( &manager->faces, face_id, ftc_face_node_compare, + mrunode, error ); + +#else + error = FTC_MruList_Lookup( &manager->faces, face_id, &mrunode ); +#endif + + if ( !error ) + *aface = FTC_FACE_NODE( mrunode )->face; + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE MANAGER ROUTINES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_New( FT_Library library, + FT_UInt max_faces, + FT_UInt max_sizes, + FT_ULong max_bytes, + FTC_Face_Requester requester, + FT_Pointer req_data, + FTC_Manager *amanager ) + { + FT_Error error; + FT_Memory memory; + FTC_Manager manager = 0; + + + if ( !library ) + return FTC_Err_Invalid_Library_Handle; + + memory = library->memory; + + if ( FT_NEW( manager ) ) + goto Exit; + + if ( max_faces == 0 ) + max_faces = FTC_MAX_FACES_DEFAULT; + + if ( max_sizes == 0 ) + max_sizes = FTC_MAX_SIZES_DEFAULT; + + if ( max_bytes == 0 ) + max_bytes = FTC_MAX_BYTES_DEFAULT; + + manager->library = library; + manager->memory = memory; + manager->max_weight = max_bytes; + + manager->request_face = requester; + manager->request_data = req_data; + + FTC_MruList_Init( &manager->faces, + &ftc_face_list_class, + max_faces, + manager, + memory ); + + FTC_MruList_Init( &manager->sizes, + &ftc_size_list_class, + max_sizes, + manager, + memory ); + + *amanager = manager; + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Manager_Done( FTC_Manager manager ) + { + FT_Memory memory; + FT_UInt idx; + + + if ( !manager || !manager->library ) + return; + + memory = manager->memory; + + /* now discard all caches */ + for (idx = manager->num_caches; idx-- > 0; ) + { + FTC_Cache cache = manager->caches[idx]; + + + if ( cache ) + { + cache->clazz.cache_done( cache ); + FT_FREE( cache ); + manager->caches[idx] = NULL; + } + } + manager->num_caches = 0; + + /* discard faces and sizes */ + FTC_MruList_Done( &manager->sizes ); + FTC_MruList_Done( &manager->faces ); + + manager->library = NULL; + manager->memory = NULL; + + FT_FREE( manager ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Manager_Reset( FTC_Manager manager ) + { + if ( manager ) + { + FTC_MruList_Reset( &manager->sizes ); + FTC_MruList_Reset( &manager->faces ); + } + /* XXX: FIXME: flush the caches? */ + } + + +#ifdef FT_DEBUG_ERROR + + static void + FTC_Manager_Check( FTC_Manager manager ) + { + FTC_Node node, first; + + + first = manager->nodes_list; + + /* check node weights */ + if ( first ) + { + FT_ULong weight = 0; + + + node = first; + + do + { + FTC_Cache cache = manager->caches[node->cache_index]; + + + if ( (FT_UInt)node->cache_index >= manager->num_caches ) + FT_TRACE0(( "FTC_Manager_Check: invalid node (cache index = %ld\n", + node->cache_index )); + else + weight += cache->clazz.node_weight( node, cache ); + + node = FTC_NODE__NEXT( node ); + + } while ( node != first ); + + if ( weight != manager->cur_weight ) + FT_TRACE0(( "FTC_Manager_Check: invalid weight %ld instead of %ld\n", + manager->cur_weight, weight )); + } + + /* check circular list */ + if ( first ) + { + FT_UFast count = 0; + + + node = first; + do + { + count++; + node = FTC_NODE__NEXT( node ); + + } while ( node != first ); + + if ( count != manager->num_nodes ) + FT_TRACE0(( "FTC_Manager_Check:" + " invalid cache node count %d instead of %d\n", + manager->num_nodes, count )); + } + } + +#endif /* FT_DEBUG_ERROR */ + + + /* `Compress' the manager's data, i.e., get rid of old cache nodes */ + /* that are not referenced anymore in order to limit the total */ + /* memory used by the cache. */ + + /* documentation is in ftcmanag.h */ + + FT_LOCAL_DEF( void ) + FTC_Manager_Compress( FTC_Manager manager ) + { + FTC_Node node, first; + + + if ( !manager ) + return; + + first = manager->nodes_list; + +#ifdef FT_DEBUG_ERROR + FTC_Manager_Check( manager ); + + FT_TRACE0(( "compressing, weight = %ld, max = %ld, nodes = %d\n", + manager->cur_weight, manager->max_weight, + manager->num_nodes )); +#endif + + if ( manager->cur_weight < manager->max_weight || first == NULL ) + return; + + /* go to last node -- it's a circular list */ + node = FTC_NODE__PREV( first ); + do + { + FTC_Node prev; + + + prev = ( node == first ) ? NULL : FTC_NODE__PREV( node ); + + if ( node->ref_count <= 0 ) + ftc_node_destroy( node, manager ); + + node = prev; + + } while ( node && manager->cur_weight > manager->max_weight ); + } + + + /* documentation is in ftcmanag.h */ + + FT_LOCAL_DEF( FT_Error ) + FTC_Manager_RegisterCache( FTC_Manager manager, + FTC_CacheClass clazz, + FTC_Cache *acache ) + { + FT_Error error = FTC_Err_Invalid_Argument; + FTC_Cache cache = NULL; + + + if ( manager && clazz && acache ) + { + FT_Memory memory = manager->memory; + + + if ( manager->num_caches >= FTC_MAX_CACHES ) + { + error = FTC_Err_Too_Many_Caches; + FT_ERROR(( "FTC_Manager_RegisterCache:" + " too many registered caches\n" )); + goto Exit; + } + + if ( !FT_ALLOC( cache, clazz->cache_size ) ) + { + cache->manager = manager; + cache->memory = memory; + cache->clazz = clazz[0]; + cache->org_class = clazz; + + /* THIS IS VERY IMPORTANT! IT WILL WRETCH THE MANAGER */ + /* IF IT IS NOT SET CORRECTLY */ + cache->index = manager->num_caches; + + error = clazz->cache_init( cache ); + if ( error ) + { + clazz->cache_done( cache ); + FT_FREE( cache ); + goto Exit; + } + + manager->caches[manager->num_caches++] = cache; + } + } + + Exit: + if ( acache ) + *acache = cache; + return error; + } + + + FT_LOCAL_DEF( FT_UInt ) + FTC_Manager_FlushN( FTC_Manager manager, + FT_UInt count ) + { + FTC_Node first = manager->nodes_list; + FTC_Node node; + FT_UInt result; + + + /* try to remove `count' nodes from the list */ + if ( first == NULL ) /* empty list! */ + return 0; + + /* go to last node - it's a circular list */ + node = FTC_NODE__PREV(first); + for ( result = 0; result < count; ) + { + FTC_Node prev = FTC_NODE__PREV( node ); + + + /* don't touch locked nodes */ + if ( node->ref_count <= 0 ) + { + ftc_node_destroy( node, manager ); + result++; + } + + if ( node == first ) + break; + + node = prev; + } + return result; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Manager_RemoveFaceID( FTC_Manager manager, + FTC_FaceID face_id ) + { + FT_UInt nn; + + /* this will remove all FTC_SizeNode that correspond to + * the face_id as well + */ + FTC_MruList_RemoveSelection( &manager->faces, + ftc_face_node_compare, + face_id ); + + for ( nn = 0; nn < manager->num_caches; nn++ ) + FTC_Cache_RemoveFaceID( manager->caches[nn], face_id ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Node_Unref( FTC_Node node, + FTC_Manager manager ) + { + if ( node && (FT_UInt)node->cache_index < manager->num_caches ) + node->ref_count--; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_Lookup_Face( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ) + { + return FTC_Manager_LookupFace( manager, face_id, aface ); + } + + + FT_EXPORT( FT_Error ) + FTC_Manager_Lookup_Size( FTC_Manager manager, + FTC_Font font, + FT_Face *aface, + FT_Size *asize ) + { + FTC_ScalerRec scaler; + FT_Error error; + FT_Size size; + FT_Face face; + + + scaler.face_id = font->face_id; + scaler.width = font->pix_width; + scaler.height = font->pix_height; + scaler.pixel = TRUE; + scaler.x_res = 0; + scaler.y_res = 0; + + error = FTC_Manager_LookupSize( manager, &scaler, &size ); + if ( error ) + { + face = NULL; + size = NULL; + } + else + face = size->face; + + if ( aface ) + *aface = face; + + if ( asize ) + *asize = size; + + return error; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.h b/uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.h new file mode 100644 index 000000000..6a4ea45df --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcmanag.h @@ -0,0 +1,175 @@ +/***************************************************************************/ +/* */ +/* ftcmanag.h */ +/* */ +/* FreeType Cache Manager (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* A cache manager is in charge of the following: */ + /* */ + /* - Maintain a mapping between generic FTC_FaceIDs and live FT_Face */ + /* objects. The mapping itself is performed through a user-provided */ + /* callback. However, the manager maintains a small cache of FT_Face */ + /* and FT_Size objects in order to speed up things considerably. */ + /* */ + /* - Manage one or more cache objects. Each cache is in charge of */ + /* holding a varying number of `cache nodes'. Each cache node */ + /* represents a minimal amount of individually accessible cached */ + /* data. For example, a cache node can be an FT_Glyph image */ + /* containing a vector outline, or some glyph metrics, or anything */ + /* else. */ + /* */ + /* Each cache node has a certain size in bytes that is added to the */ + /* total amount of `cache memory' within the manager. */ + /* */ + /* All cache nodes are located in a global LRU list, where the oldest */ + /* node is at the tail of the list. */ + /* */ + /* Each node belongs to a single cache, and includes a reference */ + /* count to avoid destroying it (due to caching). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********* *********/ + /********* WARNING, THIS IS BETA CODE. *********/ + /********* *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifndef __FTCMANAG_H__ +#define __FTCMANAG_H__ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcmru.h" +#include "ftccache.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cache_subsystem */ + /* */ + /*************************************************************************/ + + +#define FTC_MAX_FACES_DEFAULT 2 +#define FTC_MAX_SIZES_DEFAULT 4 +#define FTC_MAX_BYTES_DEFAULT 200000L /* ~200kByte by default */ + + /* maximum number of caches registered in a single manager */ +#define FTC_MAX_CACHES 16 + + + typedef struct FTC_ManagerRec_ + { + FT_Library library; + FT_Memory memory; + + FTC_Node nodes_list; + FT_ULong max_weight; + FT_ULong cur_weight; + FT_UInt num_nodes; + + FTC_Cache caches[FTC_MAX_CACHES]; + FT_UInt num_caches; + + FTC_MruListRec faces; + FTC_MruListRec sizes; + + FT_Pointer request_data; + FTC_Face_Requester request_face; + + } FTC_ManagerRec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_Compress */ + /* */ + /* <Description> */ + /* This function is used to check the state of the cache manager if */ + /* its `num_bytes' field is greater than its `max_bytes' field. It */ + /* will flush as many old cache nodes as possible (ignoring cache */ + /* nodes with a non-zero reference count). */ + /* */ + /* <InOut> */ + /* manager :: A handle to the cache manager. */ + /* */ + /* <Note> */ + /* Client applications should not call this function directly. It is */ + /* normally invoked by specific cache implementations. */ + /* */ + /* The reason this function is exported is to allow client-specific */ + /* cache classes. */ + /* */ + FT_LOCAL( void ) + FTC_Manager_Compress( FTC_Manager manager ); + + + /* try to flush `count' old nodes from the cache; return the number + * of really flushed nodes + */ + FT_LOCAL( FT_UInt ) + FTC_Manager_FlushN( FTC_Manager manager, + FT_UInt count ); + + + /* this must be used internally for the moment */ + FT_LOCAL( FT_Error ) + FTC_Manager_RegisterCache( FTC_Manager manager, + FTC_CacheClass clazz, + FTC_Cache *acache ); + + /* */ + +#define FTC_SCALER_COMPARE( a, b ) \ + ( (a)->face_id == (b)->face_id && \ + (a)->width == (b)->width && \ + (a)->height == (b)->height && \ + ((a)->pixel != 0) == ((b)->pixel != 0) && \ + ( (a)->pixel || \ + ( (a)->x_res == (b)->x_res && \ + (a)->y_res == (b)->y_res ) ) ) + +#define FTC_SCALER_HASH( q ) \ + ( _FTC_FACE_ID_HASH( (q)->face_id ) + \ + (q)->width + (q)->height*7 + \ + ( (q)->pixel ? 0 : ( (q)->x_res*33 ^ (q)->y_res*61 ) ) ) + + /* */ + +FT_END_HEADER + +#endif /* __FTCMANAG_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcmru.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcmru.c new file mode 100644 index 000000000..73cbd959f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcmru.c @@ -0,0 +1,357 @@ +/***************************************************************************/ +/* */ +/* ftcmru.c */ +/* */ +/* FreeType MRU support (body). */ +/* */ +/* Copyright 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcmru.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + +#include "ftcerror.h" + + + FT_LOCAL_DEF( void ) + FTC_MruNode_Prepend( FTC_MruNode *plist, + FTC_MruNode node ) + { + FTC_MruNode first = *plist; + + + if ( first ) + { + FTC_MruNode last = first->prev; + + +#ifdef FT_DEBUG_ERROR + { + FTC_MruNode cnode = first; + + + do + { + if ( cnode == node ) + { + fprintf( stderr, "FTC_MruNode_Prepend: invalid action\n" ); + exit( 2 ); + } + cnode = cnode->next; + + } while ( cnode != first ); + } +#endif + + first->prev = node; + last->next = node; + node->next = first; + node->prev = last; + } + else + { + node->next = node; + node->prev = node; + } + *plist = node; + } + + + FT_LOCAL_DEF( void ) + FTC_MruNode_Up( FTC_MruNode *plist, + FTC_MruNode node ) + { + FTC_MruNode first = *plist; + + + FT_ASSERT( first != NULL ); + + if ( first != node ) + { + FTC_MruNode prev, next, last; + + +#ifdef FT_DEBUG_ERROR + { + FTC_MruNode cnode = first; + do + { + if ( cnode == node ) + goto Ok; + cnode = cnode->next; + + } while ( cnode != first ); + + fprintf( stderr, "FTC_MruNode_Up: invalid action\n" ); + exit( 2 ); + Ok: + } +#endif + prev = node->prev; + next = node->next; + + prev->next = next; + next->prev = prev; + + last = first->prev; + + last->next = node; + first->prev = node; + + node->next = first; + node->prev = last; + + *plist = node; + } + } + + + FT_LOCAL_DEF( void ) + FTC_MruNode_Remove( FTC_MruNode *plist, + FTC_MruNode node ) + { + FTC_MruNode first = *plist; + FTC_MruNode prev, next; + + + FT_ASSERT( first != NULL ); + +#ifdef FT_DEBUG_ERROR + { + FTC_MruNode cnode = first; + + + do + { + if ( cnode == node ) + goto Ok; + cnode = cnode->next; + + } while ( cnode != first ); + + fprintf( stderr, "FTC_MruNode_Remove: invalid action\n" ); + exit( 2 ); + Ok: + } +#endif + + prev = node->prev; + next = node->next; + + prev->next = next; + next->prev = prev; + + if ( node == next ) + { + FT_ASSERT( first == node ); + FT_ASSERT( prev == node ); + + *plist = NULL; + } + else if ( node == first ) + *plist = next; + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_Init( FTC_MruList list, + FTC_MruListClass clazz, + FT_UInt max_nodes, + FT_Pointer data, + FT_Memory memory ) + { + list->num_nodes = 0; + list->max_nodes = max_nodes; + list->nodes = NULL; + list->clazz = *clazz; + list->data = data; + list->memory = memory; + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_Reset( FTC_MruList list ) + { + while ( list->nodes ) + FTC_MruList_Remove( list, list->nodes ); + + FT_ASSERT( list->num_nodes == 0 ); + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_Done( FTC_MruList list ) + { + FTC_MruList_Reset( list ); + } + + +#ifndef FTC_INLINE + FT_LOCAL_DEF( FTC_MruNode ) + FTC_MruList_Find( FTC_MruList list, + FT_Pointer key ) + { + FTC_MruNode_CompareFunc compare = list->clazz.node_compare; + FTC_MruNode first, node; + + + first = list->nodes; + node = NULL; + + if ( first ) + { + node = first; + do + { + if ( compare( node, key ) ) + { + if ( node != first ) + FTC_MruNode_Up( &list->nodes, node ); + + return node; + } + + node = node->next; + + } while ( node != first); + } + + return NULL; + } +#endif + + FT_LOCAL_DEF( FT_Error ) + FTC_MruList_New( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *anode ) + { + FT_Error error; + FTC_MruNode node = NULL; + FT_Memory memory = list->memory; + + + if ( list->num_nodes >= list->max_nodes && list->max_nodes > 0 ) + { + node = list->nodes->prev; + + FT_ASSERT( node ); + + if ( list->clazz.node_reset ) + { + FTC_MruNode_Up( &list->nodes, node ); + + error = list->clazz.node_reset( node, key, list->data ); + if ( !error ) + goto Exit; + } + + FTC_MruNode_Remove( &list->nodes, node ); + list->num_nodes--; + + if ( list->clazz.node_done ) + list->clazz.node_done( node, list->data ); + } + else if ( FT_ALLOC( node, list->clazz.node_size ) ) + goto Exit; + + error = list->clazz.node_init( node, key, list->data ); + if ( error ) + goto Fail; + + FTC_MruNode_Prepend( &list->nodes, node ); + list->num_nodes++; + + Exit: + *anode = node; + return error; + + Fail: + if ( list->clazz.node_done ) + list->clazz.node_done( node, list->data ); + + FT_FREE( node ); + goto Exit; + } + + +#ifndef FTC_INLINE + FT_LOCAL_DEF( FT_Error ) + FTC_MruList_Lookup( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *anode ) + { + FTC_MruNode node; + + + node = FTC_MruList_Find( list, key ); + if ( node == NULL ) + return FTC_MruList_New( list, key, anode ); + + *anode = node; + return 0; + } +#endif /* FTC_INLINE */ + + FT_LOCAL_DEF( void ) + FTC_MruList_Remove( FTC_MruList list, + FTC_MruNode node ) + { + FTC_MruNode_Remove( &list->nodes, node ); + list->num_nodes--; + + { + FT_Memory memory = list->memory; + + + if ( list->clazz.node_done ) + list->clazz.node_done( node, list->data ); + + FT_FREE( node ); + } + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_RemoveSelection( FTC_MruList list, + FTC_MruNode_CompareFunc selection, + FT_Pointer key ) + { + FTC_MruNode first, node, next; + + + first = list->nodes; + while ( first && ( selection == NULL || selection( first, key ) ) ) + { + FTC_MruList_Remove( list, first ); + first = list->nodes; + } + + if ( first ) + { + node = first->next; + while ( node != first ) + { + next = node->next; + + if ( selection( node, key ) ) + FTC_MruList_Remove( list, node ); + + node = next; + } + } + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcmru.h b/uppsrc/plugin/FT_fontsys/src/cache/ftcmru.h new file mode 100644 index 000000000..f0cd60edf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcmru.h @@ -0,0 +1,246 @@ +/***************************************************************************/ +/* */ +/* ftcmru.h */ +/* */ +/* Simple MRU list-cache (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* An MRU is a list that cannot hold more than a certain number of */ + /* elements (`max_elements'). All elements in the list are sorted in */ + /* least-recently-used order, i.e., the `oldest' element is at the tail */ + /* of the list. */ + /* */ + /* When doing a lookup (either through `Lookup()' or `Lookup_Node()'), */ + /* the list is searched for an element with the corresponding key. If */ + /* it is found, the element is moved to the head of the list and is */ + /* returned. */ + /* */ + /* If no corresponding element is found, the lookup routine will try to */ + /* obtain a new element with the relevant key. If the list is already */ + /* full, the oldest element from the list is discarded and replaced by a */ + /* new one; a new element is added to the list otherwise. */ + /* */ + /* Note that it is possible to pre-allocate the element list nodes. */ + /* This is handy if `max_elements' is sufficiently small, as it saves */ + /* allocations/releases during the lookup process. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTCMRU_H__ +#define __FTCMRU_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + +#define xxFT_DEBUG_ERROR +#define FTC_INLINE + +FT_BEGIN_HEADER + + typedef struct FTC_MruNodeRec_* FTC_MruNode; + + typedef struct FTC_MruNodeRec_ + { + FTC_MruNode next; + FTC_MruNode prev; + + } FTC_MruNodeRec; + + + FT_LOCAL( void ) + FTC_MruNode_Prepend( FTC_MruNode *plist, + FTC_MruNode node ); + + FT_LOCAL( void ) + FTC_MruNode_Up( FTC_MruNode *plist, + FTC_MruNode node ); + + FT_LOCAL( void ) + FTC_MruNode_Remove( FTC_MruNode *plist, + FTC_MruNode node ); + + + typedef struct FTC_MruListRec_* FTC_MruList; + + typedef struct FTC_MruListClassRec_ const * FTC_MruListClass; + + + typedef FT_Bool + (*FTC_MruNode_CompareFunc)( FTC_MruNode node, + FT_Pointer key ); + + typedef FT_Error + (*FTC_MruNode_InitFunc)( FTC_MruNode node, + FT_Pointer key, + FT_Pointer data ); + + typedef FT_Error + (*FTC_MruNode_ResetFunc)( FTC_MruNode node, + FT_Pointer key, + FT_Pointer data ); + + typedef void + (*FTC_MruNode_DoneFunc)( FTC_MruNode node, + FT_Pointer data ); + + + typedef struct FTC_MruListClassRec_ + { + FT_Offset node_size; + FTC_MruNode_CompareFunc node_compare; + FTC_MruNode_InitFunc node_init; + FTC_MruNode_ResetFunc node_reset; + FTC_MruNode_DoneFunc node_done; + + } FTC_MruListClassRec; + + typedef struct FTC_MruListRec_ + { + FT_UInt num_nodes; + FT_UInt max_nodes; + FTC_MruNode nodes; + FT_Pointer data; + FTC_MruListClassRec clazz; + FT_Memory memory; + + } FTC_MruListRec; + + + FT_LOCAL( void ) + FTC_MruList_Init( FTC_MruList list, + FTC_MruListClass clazz, + FT_UInt max_nodes, + FT_Pointer data, + FT_Memory memory ); + + FT_LOCAL( void ) + FTC_MruList_Reset( FTC_MruList list ); + + + FT_LOCAL( void ) + FTC_MruList_Done( FTC_MruList list ); + + + FT_LOCAL( FT_Error ) + FTC_MruList_New( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *anode ); + + FT_LOCAL( void ) + FTC_MruList_Remove( FTC_MruList list, + FTC_MruNode node ); + + FT_LOCAL( void ) + FTC_MruList_RemoveSelection( FTC_MruList list, + FTC_MruNode_CompareFunc selection, + FT_Pointer key ); + + +#ifdef FTC_INLINE + +#define FTC_MRULIST_LOOKUP_CMP( list, key, compare, node, error ) \ + FT_BEGIN_STMNT \ + FTC_MruNode* _pfirst = &(list)->nodes; \ + FTC_MruNode_CompareFunc _compare = (FTC_MruNode_CompareFunc)(compare); \ + FTC_MruNode _first, _node; \ + \ + \ + error = FTC_Err_Ok; \ + _first = *(_pfirst); \ + _node = NULL; \ + \ + if ( _first ) \ + { \ + _node = _first; \ + do \ + { \ + if ( _compare( _node, (key) ) ) \ + { \ + if ( _node != _first ) \ + FTC_MruNode_Up( _pfirst, _node ); \ + \ + node = _node; \ + goto _MruOk; \ + } \ + _node = _node->next; \ + \ + } while ( _node != _first) ; \ + } \ + \ + error = FTC_MruList_New( (list), (key), (FTC_MruNode*)(void*)&(node) ); \ + _MruOk: \ + ; \ + FT_END_STMNT + +#define FTC_MRULIST_LOOKUP( list, key, node, error ) \ + FTC_MRULIST_LOOKUP_CMP( list, key, (list)->clazz.node_compare, node, error ) + +#else /* !FTC_INLINE */ + + FT_LOCAL( FTC_MruNode ) + FTC_MruList_Find( FTC_MruList list, + FT_Pointer key ); + + FT_LOCAL( FT_Error ) + FTC_MruList_Lookup( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *pnode ); + +#define FTC_MRULIST_LOOKUP( list, key, node, error ) \ + error = FTC_MruList_Lookup( (list), (key), (FTC_MruNode*)&(node) ) + +#endif /* !FTC_INLINE */ + + +#define FTC_MRULIST_LOOP( list, node ) \ + FT_BEGIN_STMNT \ + FTC_MruNode _first = (list)->nodes; \ + \ + \ + if ( _first ) \ + { \ + FTC_MruNode _node = _first; \ + \ + \ + do \ + { \ + *(FTC_MruNode*)&(node) = _node; + + +#define FTC_MRULIST_LOOP_END() \ + _node = _node->next; \ + \ + } while ( _node != _first ); \ + } \ + FT_END_STMNT + + /* */ + +FT_END_HEADER + + +#endif /* __FTCMRU_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.c b/uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.c new file mode 100644 index 000000000..56d3bd846 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.c @@ -0,0 +1,421 @@ +/***************************************************************************/ +/* */ +/* ftcsbits.c */ +/* */ +/* FreeType sbits manager (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2009, 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcsbits.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_ERRORS_H + +#include "ftccback.h" +#include "ftcerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SBIT CACHE NODES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + ftc_sbit_copy_bitmap( FTC_SBit sbit, + FT_Bitmap* bitmap, + FT_Memory memory ) + { + FT_Error error; + FT_Int pitch = bitmap->pitch; + FT_ULong size; + + + if ( pitch < 0 ) + pitch = -pitch; + + size = (FT_ULong)( pitch * bitmap->rows ); + + if ( !FT_ALLOC( sbit->buffer, size ) ) + FT_MEM_COPY( sbit->buffer, bitmap->buffer, size ); + + return error; + } + + + FT_LOCAL_DEF( void ) + ftc_snode_free( FTC_Node ftcsnode, + FTC_Cache cache ) + { + FTC_SNode snode = (FTC_SNode)ftcsnode; + FTC_SBit sbit = snode->sbits; + FT_UInt count = snode->count; + FT_Memory memory = cache->memory; + + + for ( ; count > 0; sbit++, count-- ) + FT_FREE( sbit->buffer ); + + FTC_GNode_Done( FTC_GNODE( snode ), cache ); + + FT_FREE( snode ); + } + + + FT_LOCAL_DEF( void ) + FTC_SNode_Free( FTC_SNode snode, + FTC_Cache cache ) + { + ftc_snode_free( FTC_NODE( snode ), cache ); + } + + + /* + * This function tries to load a small bitmap within a given FTC_SNode. + * Note that it returns a non-zero error code _only_ in the case of + * out-of-memory condition. For all other errors (e.g., corresponding + * to a bad font file), this function will mark the sbit as `unavailable' + * and return a value of 0. + * + * You should also read the comment within the @ftc_snode_compare + * function below to see how out-of-memory is handled during a lookup. + */ + static FT_Error + ftc_snode_load( FTC_SNode snode, + FTC_Manager manager, + FT_UInt gindex, + FT_ULong *asize ) + { + FT_Error error; + FTC_GNode gnode = FTC_GNODE( snode ); + FTC_Family family = gnode->family; + FT_Memory memory = manager->memory; + FT_Face face; + FTC_SBit sbit; + FTC_SFamilyClass clazz; + + + if ( (FT_UInt)(gindex - gnode->gindex) >= snode->count ) + { + FT_ERROR(( "ftc_snode_load: invalid glyph index" )); + return FTC_Err_Invalid_Argument; + } + + sbit = snode->sbits + ( gindex - gnode->gindex ); + clazz = (FTC_SFamilyClass)family->clazz; + + sbit->buffer = 0; + + error = clazz->family_load_glyph( family, gindex, manager, &face ); + if ( error ) + goto BadGlyph; + + { + FT_Int temp; + FT_GlyphSlot slot = face->glyph; + FT_Bitmap* bitmap = &slot->bitmap; + FT_Pos xadvance, yadvance; /* FT_GlyphSlot->advance.{x|y} */ + + + if ( slot->format != FT_GLYPH_FORMAT_BITMAP ) + { + FT_TRACE0(( "ftc_snode_load:" + " glyph loaded didn't return a bitmap\n" )); + goto BadGlyph; + } + + /* Check that our values fit into 8-bit containers! */ + /* If this is not the case, our bitmap is too large */ + /* and we will leave it as `missing' with sbit.buffer = 0 */ + +#define CHECK_CHAR( d ) ( temp = (FT_Char)d, temp == d ) +#define CHECK_BYTE( d ) ( temp = (FT_Byte)d, temp == d ) + + /* horizontal advance in pixels */ + xadvance = ( slot->advance.x + 32 ) >> 6; + yadvance = ( slot->advance.y + 32 ) >> 6; + + if ( !CHECK_BYTE( bitmap->rows ) || + !CHECK_BYTE( bitmap->width ) || + !CHECK_CHAR( bitmap->pitch ) || + !CHECK_CHAR( slot->bitmap_left ) || + !CHECK_CHAR( slot->bitmap_top ) || + !CHECK_CHAR( xadvance ) || + !CHECK_CHAR( yadvance ) ) + { + FT_TRACE2(( "ftc_snode_load:" + " glyph too large for small bitmap cache\n")); + goto BadGlyph; + } + + sbit->width = (FT_Byte)bitmap->width; + sbit->height = (FT_Byte)bitmap->rows; + sbit->pitch = (FT_Char)bitmap->pitch; + sbit->left = (FT_Char)slot->bitmap_left; + sbit->top = (FT_Char)slot->bitmap_top; + sbit->xadvance = (FT_Char)xadvance; + sbit->yadvance = (FT_Char)yadvance; + sbit->format = (FT_Byte)bitmap->pixel_mode; + sbit->max_grays = (FT_Byte)(bitmap->num_grays - 1); + + /* copy the bitmap into a new buffer -- ignore error */ + error = ftc_sbit_copy_bitmap( sbit, bitmap, memory ); + + /* now, compute size */ + if ( asize ) + *asize = FT_ABS( sbit->pitch ) * sbit->height; + + } /* glyph loading successful */ + + /* ignore the errors that might have occurred -- */ + /* we mark unloaded glyphs with `sbit.buffer == 0' */ + /* and `width == 255', `height == 0' */ + /* */ + if ( error && error != FTC_Err_Out_Of_Memory ) + { + BadGlyph: + sbit->width = 255; + sbit->height = 0; + sbit->buffer = NULL; + error = FTC_Err_Ok; + if ( asize ) + *asize = 0; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + FTC_SNode_New( FTC_SNode *psnode, + FTC_GQuery gquery, + FTC_Cache cache ) + { + FT_Memory memory = cache->memory; + FT_Error error; + FTC_SNode snode = NULL; + FT_UInt gindex = gquery->gindex; + FTC_Family family = gquery->family; + + FTC_SFamilyClass clazz = FTC_CACHE__SFAMILY_CLASS( cache ); + FT_UInt total; + FT_UInt node_count; + + + total = clazz->family_get_count( family, cache->manager ); + if ( total == 0 || gindex >= total ) + { + error = FTC_Err_Invalid_Argument; + goto Exit; + } + + if ( !FT_NEW( snode ) ) + { + FT_UInt count, start; + + + start = gindex - ( gindex % FTC_SBIT_ITEMS_PER_NODE ); + count = total - start; + if ( count > FTC_SBIT_ITEMS_PER_NODE ) + count = FTC_SBIT_ITEMS_PER_NODE; + + FTC_GNode_Init( FTC_GNODE( snode ), start, family ); + + snode->count = count; + for ( node_count = 0; node_count < count; node_count++ ) + { + snode->sbits[node_count].width = 255; + } + + error = ftc_snode_load( snode, + cache->manager, + gindex, + NULL ); + if ( error ) + { + FTC_SNode_Free( snode, cache ); + snode = NULL; + } + } + + Exit: + *psnode = snode; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_snode_new( FTC_Node *ftcpsnode, + FT_Pointer ftcgquery, + FTC_Cache cache ) + { + FTC_SNode *psnode = (FTC_SNode*)ftcpsnode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + + + return FTC_SNode_New( psnode, gquery, cache ); + } + + + FT_LOCAL_DEF( FT_Offset ) + ftc_snode_weight( FTC_Node ftcsnode, + FTC_Cache cache ) + { + FTC_SNode snode = (FTC_SNode)ftcsnode; + FT_UInt count = snode->count; + FTC_SBit sbit = snode->sbits; + FT_Int pitch; + FT_Offset size; + + FT_UNUSED( cache ); + + + FT_ASSERT( snode->count <= FTC_SBIT_ITEMS_PER_NODE ); + + /* the node itself */ + size = sizeof ( *snode ); + + for ( ; count > 0; count--, sbit++ ) + { + if ( sbit->buffer ) + { + pitch = sbit->pitch; + if ( pitch < 0 ) + pitch = -pitch; + + /* add the size of a given glyph image */ + size += pitch * sbit->height; + } + } + + return size; + } + + +#if 0 + + FT_LOCAL_DEF( FT_Offset ) + FTC_SNode_Weight( FTC_SNode snode ) + { + return ftc_snode_weight( FTC_NODE( snode ), NULL ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Bool ) + ftc_snode_compare( FTC_Node ftcsnode, + FT_Pointer ftcgquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_SNode snode = (FTC_SNode)ftcsnode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + FTC_GNode gnode = FTC_GNODE( snode ); + FT_UInt gindex = gquery->gindex; + FT_Bool result; + + + if (list_changed) + *list_changed = FALSE; + result = FT_BOOL( gnode->family == gquery->family && + (FT_UInt)( gindex - gnode->gindex ) < snode->count ); + if ( result ) + { + /* check if we need to load the glyph bitmap now */ + FTC_SBit sbit = snode->sbits + ( gindex - gnode->gindex ); + + + /* + * The following code illustrates what to do when you want to + * perform operations that may fail within a lookup function. + * + * Here, we want to load a small bitmap on-demand; we thus + * need to call the `ftc_snode_load' function which may return + * a non-zero error code only when we are out of memory (OOM). + * + * The correct thing to do is to use @FTC_CACHE_TRYLOOP and + * @FTC_CACHE_TRYLOOP_END in order to implement a retry loop + * that is capable of flushing the cache incrementally when + * an OOM errors occur. + * + * However, we need to `lock' the node before this operation to + * prevent it from being flushed within the loop. + * + * When we exit the loop, we unlock the node, then check the `error' + * variable. If it is non-zero, this means that the cache was + * completely flushed and that no usable memory was found to load + * the bitmap. + * + * We then prefer to return a value of 0 (i.e., NO MATCH). This + * ensures that the caller will try to allocate a new node. + * This operation consequently _fail_ and the lookup function + * returns the appropriate OOM error code. + * + * Note that `buffer == NULL && width == 255' is a hack used to + * tag `unavailable' bitmaps in the array. We should never try + * to load these. + * + */ + + if ( sbit->buffer == NULL && sbit->width == 255 ) + { + FT_ULong size; + FT_Error error; + + + ftcsnode->ref_count++; /* lock node to prevent flushing */ + /* in retry loop */ + + FTC_CACHE_TRYLOOP( cache ) + { + error = ftc_snode_load( snode, cache->manager, gindex, &size ); + } + FTC_CACHE_TRYLOOP_END( list_changed ); + + ftcsnode->ref_count--; /* unlock the node */ + + if ( error ) + result = 0; + else + cache->manager->cur_weight += size; + } + } + + return result; + } + + +#ifdef FTC_INLINE + + FT_LOCAL_DEF( FT_Bool ) + FTC_SNode_Compare( FTC_SNode snode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + return ftc_snode_compare( FTC_NODE( snode ), gquery, + cache, list_changed ); + } + +#endif + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.h b/uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.h new file mode 100644 index 000000000..4e96b81b3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cache/ftcsbits.h @@ -0,0 +1,103 @@ +/***************************************************************************/ +/* */ +/* ftcsbits.h */ +/* */ +/* A small-bitmap cache (specification). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCSBITS_H__ +#define __FTCSBITS_H__ + + +#include <freetype/ft2build.h> +#include FT_CACHE_H +#include "ftcglyph.h" + + +FT_BEGIN_HEADER + +#define FTC_SBIT_ITEMS_PER_NODE 16 + + typedef struct FTC_SNodeRec_ + { + FTC_GNodeRec gnode; + FT_UInt count; + FTC_SBitRec sbits[FTC_SBIT_ITEMS_PER_NODE]; + + } FTC_SNodeRec, *FTC_SNode; + + +#define FTC_SNODE( x ) ( (FTC_SNode)( x ) ) +#define FTC_SNODE_GINDEX( x ) FTC_GNODE( x )->gindex +#define FTC_SNODE_FAMILY( x ) FTC_GNODE( x )->family + + typedef FT_UInt + (*FTC_SFamily_GetCountFunc)( FTC_Family family, + FTC_Manager manager ); + + typedef FT_Error + (*FTC_SFamily_LoadGlyphFunc)( FTC_Family family, + FT_UInt gindex, + FTC_Manager manager, + FT_Face *aface ); + + typedef struct FTC_SFamilyClassRec_ + { + FTC_MruListClassRec clazz; + FTC_SFamily_GetCountFunc family_get_count; + FTC_SFamily_LoadGlyphFunc family_load_glyph; + + } FTC_SFamilyClassRec; + + typedef const FTC_SFamilyClassRec* FTC_SFamilyClass; + +#define FTC_SFAMILY_CLASS( x ) ((FTC_SFamilyClass)(x)) + +#define FTC_CACHE__SFAMILY_CLASS( x ) \ + FTC_SFAMILY_CLASS( FTC_CACHE__GCACHE_CLASS( x )->family_class ) + + + FT_LOCAL( void ) + FTC_SNode_Free( FTC_SNode snode, + FTC_Cache cache ); + + FT_LOCAL( FT_Error ) + FTC_SNode_New( FTC_SNode *psnode, + FTC_GQuery gquery, + FTC_Cache cache ); + +#if 0 + FT_LOCAL( FT_ULong ) + FTC_SNode_Weight( FTC_SNode inode ); +#endif + + +#ifdef FTC_INLINE + + FT_LOCAL( FT_Bool ) + FTC_SNode_Compare( FTC_SNode snode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed); + +#endif + + /* */ + +FT_END_HEADER + +#endif /* __FTCSBITS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cff.c b/uppsrc/plugin/FT_fontsys/src/cff/cff.c new file mode 100644 index 000000000..5cf900328 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cff.c @@ -0,0 +1,30 @@ +/***************************************************************************/ +/* */ +/* cff.c */ +/* */ +/* FreeType OpenType driver component (body only). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "cffpic.c" +#include "cffdrivr.c" +#include "cffparse.c" +#include "cffload.c" +#include "cffobjs.c" +#include "cffgload.c" +#include "cffcmap.c" + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffcmap.c b/uppsrc/plugin/FT_fontsys/src/cff/cffcmap.c new file mode 100644 index 000000000..129837110 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffcmap.c @@ -0,0 +1,208 @@ +/***************************************************************************/ +/* */ +/* cffcmap.c */ +/* */ +/* CFF character mapping table (cmap) support (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "cffcmap.h" +#include "cffload.h" + +#include "cfferrs.h" + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CFF STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( FT_Error ) + cff_cmap_encoding_init( CFF_CMapStd cmap ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( cmap ); + CFF_Font cff = (CFF_Font)face->extra.data; + CFF_Encoding encoding = &cff->encoding; + + + cmap->gids = encoding->codes; + + return 0; + } + + + FT_CALLBACK_DEF( void ) + cff_cmap_encoding_done( CFF_CMapStd cmap ) + { + cmap->gids = NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + cff_cmap_encoding_char_index( CFF_CMapStd cmap, + FT_UInt32 char_code ) + { + FT_UInt result = 0; + + + if ( char_code < 256 ) + result = cmap->gids[char_code]; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + cff_cmap_encoding_char_next( CFF_CMapStd cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code; + + + *pchar_code = 0; + + if ( char_code < 255 ) + { + FT_UInt code = (FT_UInt)(char_code + 1); + + + for (;;) + { + if ( code >= 256 ) + break; + + result = cmap->gids[code]; + if ( result != 0 ) + { + *pchar_code = code; + break; + } + + code++; + } + } + return result; + } + + + FT_DEFINE_CMAP_CLASS(cff_cmap_encoding_class_rec, + sizeof ( CFF_CMapStdRec ), + + (FT_CMap_InitFunc) cff_cmap_encoding_init, + (FT_CMap_DoneFunc) cff_cmap_encoding_done, + (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index, + (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next, + + NULL, NULL, NULL, NULL, NULL + ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( const char* ) + cff_sid_to_glyph_name( TT_Face face, + FT_UInt idx ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + CFF_Charset charset = &cff->charset; + FT_UInt sid = charset->sids[idx]; + + + return cff_index_get_sid_string( cff, sid ); + } + + + FT_CALLBACK_DEF( FT_Error ) + cff_cmap_unicode_init( PS_Unicodes unicodes ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + CFF_Font cff = (CFF_Font)face->extra.data; + CFF_Charset charset = &cff->charset; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + /* can't build Unicode map for CID-keyed font */ + /* because we don't know glyph names. */ + if ( !charset->sids ) + return CFF_Err_No_Unicode_Glyph_Name; + + return psnames->unicodes_init( memory, + unicodes, + cff->num_glyphs, + (PS_GetGlyphNameFunc)&cff_sid_to_glyph_name, + (PS_FreeGlyphNameFunc)NULL, + (FT_Pointer)face ); + } + + + FT_CALLBACK_DEF( void ) + cff_cmap_unicode_done( PS_Unicodes unicodes ) + { + FT_Face face = FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( unicodes->maps ); + unicodes->num_maps = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + cff_cmap_unicode_char_index( PS_Unicodes unicodes, + FT_UInt32 char_code ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes ); + CFF_Font cff = (CFF_Font)face->extra.data; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + return psnames->unicodes_char_index( unicodes, char_code ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + cff_cmap_unicode_char_next( PS_Unicodes unicodes, + FT_UInt32 *pchar_code ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes ); + CFF_Font cff = (CFF_Font)face->extra.data; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + return psnames->unicodes_char_next( unicodes, pchar_code ); + } + + + FT_DEFINE_CMAP_CLASS(cff_cmap_unicode_class_rec, + sizeof ( PS_UnicodesRec ), + + (FT_CMap_InitFunc) cff_cmap_unicode_init, + (FT_CMap_DoneFunc) cff_cmap_unicode_done, + (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index, + (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next, + + NULL, NULL, NULL, NULL, NULL + ) + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffcmap.h b/uppsrc/plugin/FT_fontsys/src/cff/cffcmap.h new file mode 100644 index 000000000..3f7f67bbe --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffcmap.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* cffcmap.h */ +/* */ +/* CFF character mapping table (cmap) support (specification). */ +/* */ +/* Copyright 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFCMAP_H__ +#define __CFFCMAP_H__ + +#include "cffobjs.h" + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* standard (and expert) encoding cmaps */ + typedef struct CFF_CMapStdRec_* CFF_CMapStd; + + typedef struct CFF_CMapStdRec_ + { + FT_CMapRec cmap; + FT_UShort* gids; /* up to 256 elements */ + + } CFF_CMapStdRec; + + + FT_DECLARE_CMAP_CLASS(cff_cmap_encoding_class_rec) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* unicode (synthetic) cmaps */ + + FT_DECLARE_CMAP_CLASS(cff_cmap_unicode_class_rec) + + +FT_END_HEADER + +#endif /* __CFFCMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.c b/uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.c new file mode 100644 index 000000000..53a9b4190 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.c @@ -0,0 +1,671 @@ +/***************************************************************************/ +/* */ +/* cffdrivr.c */ +/* */ +/* OpenType font driver implementation (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_SERVICE_CID_H +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_TT_CMAP_H + +#include "cffdrivr.h" +#include "cffgload.h" +#include "cffload.h" +#include "cffcmap.h" +#include "cffparse.h" + +#include "cfferrs.h" +#include "cffpic.h" + +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_GLYPH_DICT_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffdriver + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** F A C E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#undef PAIR_TAG +#define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \ + (FT_ULong)right ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_get_kerning */ + /* */ + /* <Description> */ + /* A driver method used to return the kerning vector between two */ + /* glyphs of the same face. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* <Output> */ + /* kerning :: The kerning vector. This is in font units for */ + /* scalable formats, and in pixels for fixed-sizes */ + /* formats. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this function. Other layouts, or more sophisticated */ + /* kernings, are out of scope of this method (the basic driver */ + /* interface is meant to be simple). */ + /* */ + /* They can be implemented by format-specific interfaces. */ + /* */ + FT_CALLBACK_DEF( FT_Error ) + cff_get_kerning( FT_Face ttface, /* TT_Face */ + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ) + { + TT_Face face = (TT_Face)ttface; + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + + kerning->x = 0; + kerning->y = 0; + + if ( sfnt ) + kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); + + return CFF_Err_Ok; + } + + +#undef PAIR_TAG + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_Glyph */ + /* */ + /* <Description> */ + /* A driver method used to load a glyph within a given glyph slot. */ + /* */ + /* <Input> */ + /* slot :: A handle to the target slot object where the glyph */ + /* will be loaded. */ + /* */ + /* size :: A handle to the source face size at which the glyph */ + /* must be scaled, loaded, etc. */ + /* */ + /* glyph_index :: The index of the glyph in the font file. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* FT_LOAD_??? constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_CALLBACK_DEF( FT_Error ) + Load_Glyph( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */ + FT_Size cffsize, /* CFF_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; + CFF_Size size = (CFF_Size)cffsize; + + + if ( !slot ) + return CFF_Err_Invalid_Slot_Handle; + + /* check whether we want a scaled outline or bitmap */ + if ( !size ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + /* reset the size object if necessary */ + if ( load_flags & FT_LOAD_NO_SCALE ) + size = NULL; + + if ( size ) + { + /* these two objects must have the same parent */ + if ( cffsize->face != cffslot->face ) + return CFF_Err_Invalid_Face_Handle; + } + + /* now load the glyph outline if necessary */ + error = cff_slot_load( slot, size, glyph_index, load_flags ); + + /* force drop-out mode to 2 - irrelevant now */ + /* slot->outline.dropout_mode = 2; */ + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + cff_get_advances( FT_Face face, + FT_UInt start, + FT_UInt count, + FT_Int32 flags, + FT_Fixed* advances ) + { + FT_UInt nn; + FT_Error error = CFF_Err_Ok; + FT_GlyphSlot slot = face->glyph; + + + flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; + + for ( nn = 0; nn < count; nn++ ) + { + error = Load_Glyph( slot, face->size, start + nn, flags ); + if ( error ) + break; + + advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) + ? slot->linearVertAdvance + : slot->linearHoriAdvance; + } + + return error; + } + + + /* + * GLYPH DICT SERVICE + * + */ + + static FT_Error + cff_get_glyph_name( CFF_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + CFF_Font font = (CFF_Font)face->extra.data; + FT_String* gname; + FT_UShort sid; + FT_Error error; + + + if ( !font->psnames ) + { + FT_ERROR(( "cff_get_glyph_name:" + " cannot get glyph name from CFF & CEF fonts\n" + " " + " without the `PSNames' module\n" )); + error = CFF_Err_Unknown_File_Format; + goto Exit; + } + + /* first, locate the sid in the charset table */ + sid = font->charset.sids[glyph_index]; + + /* now, lookup the name itself */ + gname = cff_index_get_sid_string( font, sid ); + + if ( gname ) + FT_STRCPYN( buffer, gname, buffer_max ); + + error = CFF_Err_Ok; + + Exit: + return error; + } + + + static FT_UInt + cff_get_name_index( CFF_Face face, + FT_String* glyph_name ) + { + CFF_Font cff; + CFF_Charset charset; + FT_Service_PsCMaps psnames; + FT_String* name; + FT_UShort sid; + FT_UInt i; + + + cff = (CFF_FontRec *)face->extra.data; + charset = &cff->charset; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + if ( !psnames ) + return 0; + + for ( i = 0; i < cff->num_glyphs; i++ ) + { + sid = charset->sids[i]; + + if ( sid > 390 ) + name = cff_index_get_string( cff, sid - 391 ); + else + name = (FT_String *)psnames->adobe_std_strings( sid ); + + if ( !name ) + continue; + + if ( !ft_strcmp( glyph_name, name ) ) + return i; + } + + return 0; + } + + + FT_DEFINE_SERVICE_GLYPHDICTREC(cff_service_glyph_dict, + (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)cff_get_name_index + ) + + + /* + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Int + cff_ps_has_glyph_names( FT_Face face ) + { + return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0; + } + + + static FT_Error + cff_ps_get_font_info( CFF_Face face, + PS_FontInfoRec* afont_info ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + FT_Error error = CFF_Err_Ok; + + + if ( cff && cff->font_info == NULL ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + PS_FontInfoRec *font_info = NULL; + FT_Memory memory = face->root.memory; + + + if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) + goto Fail; + + font_info->version = cff_index_get_sid_string( cff, + dict->version ); + font_info->notice = cff_index_get_sid_string( cff, + dict->notice ); + font_info->full_name = cff_index_get_sid_string( cff, + dict->full_name ); + font_info->family_name = cff_index_get_sid_string( cff, + dict->family_name ); + font_info->weight = cff_index_get_sid_string( cff, + dict->weight ); + font_info->italic_angle = dict->italic_angle; + font_info->is_fixed_pitch = dict->is_fixed_pitch; + font_info->underline_position = (FT_Short)dict->underline_position; + font_info->underline_thickness = (FT_Short)dict->underline_thickness; + + cff->font_info = font_info; + } + + if ( cff ) + *afont_info = *cff->font_info; + + Fail: + return error; + } + + + FT_DEFINE_SERVICE_PSINFOREC(cff_service_ps_info, + (PS_GetFontInfoFunc) cff_ps_get_font_info, + (PS_GetFontExtraFunc) NULL, + (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, + (PS_GetFontPrivateFunc)NULL /* unsupported with CFF fonts */ + ) + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + cff_get_ps_name( CFF_Face face ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + return (const char*)cff->font_name; + } + + + FT_DEFINE_SERVICE_PSFONTNAMEREC(cff_service_ps_name, + (FT_PsName_GetFunc)cff_get_ps_name + ) + + + /* + * TT CMAP INFO + * + * If the charmap is a synthetic Unicode encoding cmap or + * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO + * service defined in SFNT module. + * + * Otherwise call the service function in the sfnt module. + * + */ + static FT_Error + cff_get_cmap_info( FT_CharMap charmap, + TT_CMapInfo *cmap_info ) + { + FT_CMap cmap = FT_CMAP( charmap ); + FT_Error error = CFF_Err_Ok; + FT_Face face = FT_CMAP_FACE( cmap ); + FT_Library library = FT_FACE_LIBRARY( face ); + + + cmap_info->language = 0; + cmap_info->format = 0; + + if ( cmap->clazz != &FT_CFF_CMAP_ENCODING_CLASS_REC_GET && + cmap->clazz != &FT_CFF_CMAP_UNICODE_CLASS_REC_GET ) + { + FT_Module sfnt = FT_Get_Module( library, "sfnt" ); + FT_Service_TTCMaps service = + (FT_Service_TTCMaps)ft_module_get_service( sfnt, + FT_SERVICE_ID_TT_CMAP ); + + + if ( service && service->get_cmap_info ) + error = service->get_cmap_info( charmap, cmap_info ); + } + + return error; + } + + + FT_DEFINE_SERVICE_TTCMAPSREC(cff_service_get_cmap_info, + (TT_CMap_Info_GetFunc)cff_get_cmap_info + ) + + + /* + * CID INFO SERVICE + * + */ + static FT_Error + cff_get_ros( CFF_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff = (CFF_Font)face->extra.data; + + + if ( cff ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + + + if ( dict->cid_registry == 0xFFFFU ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + if ( registry ) + { + if ( cff->registry == NULL ) + cff->registry = cff_index_get_sid_string( cff, + dict->cid_registry ); + *registry = cff->registry; + } + + if ( ordering ) + { + if ( cff->ordering == NULL ) + cff->ordering = cff_index_get_sid_string( cff, + dict->cid_ordering ); + *ordering = cff->ordering; + } + + /* + * XXX: According to Adobe TechNote #5176, the supplement in CFF + * can be a real number. We truncate it to fit public API + * since freetype-2.3.6. + */ + if ( supplement ) + { + if ( dict->cid_supplement < FT_INT_MIN || + dict->cid_supplement > FT_INT_MAX ) + FT_TRACE1(( "cff_get_ros: too large supplement %d is truncated\n", + dict->cid_supplement )); + *supplement = (FT_Int)dict->cid_supplement; + } + } + + Fail: + return error; + } + + + static FT_Error + cff_get_is_cid( CFF_Face face, + FT_Bool *is_cid ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff = (CFF_Font)face->extra.data; + + + *is_cid = 0; + + if ( cff ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + + + if ( dict->cid_registry != 0xFFFFU ) + *is_cid = 1; + } + + return error; + } + + + static FT_Error + cff_get_cid_from_glyph_index( CFF_Face face, + FT_UInt glyph_index, + FT_UInt *cid ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff; + + + cff = (CFF_Font)face->extra.data; + + if ( cff ) + { + FT_UInt c; + CFF_FontRecDict dict = &cff->top_font.font_dict; + + + if ( dict->cid_registry == 0xFFFFU ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + if ( glyph_index > cff->num_glyphs ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + c = cff->charset.sids[glyph_index]; + + if ( cid ) + *cid = c; + } + + Fail: + return error; + } + + + FT_DEFINE_SERVICE_CIDREC(cff_service_cid_info, + (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros, + (FT_CID_GetIsInternallyCIDKeyedFunc) cff_get_is_cid, + (FT_CID_GetCIDFromGlyphIndexFunc) cff_get_cid_from_glyph_index + ) + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** D R I V E R I N T E R F A C E ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ +#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES + FT_DEFINE_SERVICEDESCREC6(cff_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF, + FT_SERVICE_ID_POSTSCRIPT_INFO, &FT_CFF_SERVICE_PS_INFO_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_CFF_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_CFF_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_TT_CMAP, &FT_CFF_SERVICE_GET_CMAP_INFO_GET, + FT_SERVICE_ID_CID, &FT_CFF_SERVICE_CID_INFO_GET + ) +#else + FT_DEFINE_SERVICEDESCREC5(cff_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF, + FT_SERVICE_ID_POSTSCRIPT_INFO, &FT_CFF_SERVICE_PS_INFO_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_CFF_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_TT_CMAP, &FT_CFF_SERVICE_GET_CMAP_INFO_GET, + FT_SERVICE_ID_CID, &FT_CFF_SERVICE_CID_INFO_GET + ) +#endif + + FT_CALLBACK_DEF( FT_Module_Interface ) + cff_get_interface( FT_Module driver, /* CFF_Driver */ + const char* module_interface ) + { + FT_Module sfnt; + FT_Module_Interface result; + + + result = ft_service_list_lookup( FT_CFF_SERVICES_GET, module_interface ); + if ( result != NULL ) + return result; + + if ( !driver ) + return NULL; + + /* we pass our request to the `sfnt' module */ + sfnt = FT_Get_Module( driver->library, "sfnt" ); + + return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0; + } + + + /* The FT_DriverInterface structure is defined in ftdriver.h. */ + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define CFF_SIZE_SELECT cff_size_select +#else +#define CFF_SIZE_SELECT 0 +#endif + + FT_DEFINE_DRIVER(cff_driver_class, + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + FT_MODULE_DRIVER_HAS_HINTER, + + sizeof( CFF_DriverRec ), + "cff", + 0x10000L, + 0x20000L, + + 0, /* module-specific interface */ + + cff_driver_init, + cff_driver_done, + cff_get_interface, + + /* now the specific driver fields */ + sizeof( TT_FaceRec ), + sizeof( CFF_SizeRec ), + sizeof( CFF_GlyphSlotRec ), + + cff_face_init, + cff_face_done, + cff_size_init, + cff_size_done, + cff_slot_init, + cff_slot_done, + + ft_stub_set_char_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + ft_stub_set_pixel_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + Load_Glyph, + + cff_get_kerning, + 0, /* FT_Face_AttachFunc */ + cff_get_advances, /* FT_Face_GetAdvancesFunc */ + + cff_size_request, + + CFF_SIZE_SELECT + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.h b/uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.h new file mode 100644 index 000000000..030f488f8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffdrivr.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* cffdrivr.h */ +/* */ +/* High-level OpenType driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFDRIVER_H__ +#define __CFFDRIVER_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_DRIVER( cff_driver_class ) + + +FT_END_HEADER + +#endif /* __CFFDRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cfferrs.h b/uppsrc/plugin/FT_fontsys/src/cff/cfferrs.h new file mode 100644 index 000000000..1b2a5c95c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cfferrs.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* cfferrs.h */ +/* */ +/* CFF error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the CFF error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __CFFERRS_H__ +#define __CFFERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX CFF_Err_ +#define FT_ERR_BASE FT_Mod_Err_CFF + + +#include FT_ERRORS_H + +#endif /* __CFFERRS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffgload.c b/uppsrc/plugin/FT_fontsys/src/cff/cffgload.c new file mode 100644 index 000000000..4f688db8f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffgload.c @@ -0,0 +1,2977 @@ +/***************************************************************************/ +/* */ +/* cffgload.c */ +/* */ +/* OpenType Glyph Loader (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_OUTLINE_H + +#include "cffobjs.h" +#include "cffload.h" +#include "cffgload.h" + +#include "cfferrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffgload + + + typedef enum CFF_Operator_ + { + cff_op_unknown = 0, + + cff_op_rmoveto, + cff_op_hmoveto, + cff_op_vmoveto, + + cff_op_rlineto, + cff_op_hlineto, + cff_op_vlineto, + + cff_op_rrcurveto, + cff_op_hhcurveto, + cff_op_hvcurveto, + cff_op_rcurveline, + cff_op_rlinecurve, + cff_op_vhcurveto, + cff_op_vvcurveto, + + cff_op_flex, + cff_op_hflex, + cff_op_hflex1, + cff_op_flex1, + + cff_op_endchar, + + cff_op_hstem, + cff_op_vstem, + cff_op_hstemhm, + cff_op_vstemhm, + + cff_op_hintmask, + cff_op_cntrmask, + cff_op_dotsection, /* deprecated, acts as no-op */ + + cff_op_abs, + cff_op_add, + cff_op_sub, + cff_op_div, + cff_op_neg, + cff_op_random, + cff_op_mul, + cff_op_sqrt, + + cff_op_blend, + + cff_op_drop, + cff_op_exch, + cff_op_index, + cff_op_roll, + cff_op_dup, + + cff_op_put, + cff_op_get, + cff_op_store, + cff_op_load, + + cff_op_and, + cff_op_or, + cff_op_not, + cff_op_eq, + cff_op_ifelse, + + cff_op_callsubr, + cff_op_callgsubr, + cff_op_return, + + /* Type 1 opcodes: invalid but seen in real life */ + cff_op_hsbw, + cff_op_closepath, + cff_op_callothersubr, + cff_op_pop, + cff_op_seac, + cff_op_sbw, + cff_op_setcurrentpoint, + + /* do not remove */ + cff_op_max + + } CFF_Operator; + + +#define CFF_COUNT_CHECK_WIDTH 0x80 +#define CFF_COUNT_EXACT 0x40 +#define CFF_COUNT_CLEAR_STACK 0x20 + + /* count values which have the `CFF_COUNT_CHECK_WIDTH' flag set are */ + /* used for checking the width and requested numbers of arguments */ + /* only; they are set to zero afterwards */ + + /* the other two flags are informative only and unused currently */ + + static const FT_Byte cff_argument_counts[] = + { + 0, /* unknown */ + + 2 | CFF_COUNT_CHECK_WIDTH | CFF_COUNT_EXACT, /* rmoveto */ + 1 | CFF_COUNT_CHECK_WIDTH | CFF_COUNT_EXACT, + 1 | CFF_COUNT_CHECK_WIDTH | CFF_COUNT_EXACT, + + 0 | CFF_COUNT_CLEAR_STACK, /* rlineto */ + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + + 0 | CFF_COUNT_CLEAR_STACK, /* rrcurveto */ + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + + 13, /* flex */ + 7, + 9, + 11, + + 0 | CFF_COUNT_CHECK_WIDTH, /* endchar */ + + 2 | CFF_COUNT_CHECK_WIDTH, /* hstem */ + 2 | CFF_COUNT_CHECK_WIDTH, + 2 | CFF_COUNT_CHECK_WIDTH, + 2 | CFF_COUNT_CHECK_WIDTH, + + 0 | CFF_COUNT_CHECK_WIDTH, /* hintmask */ + 0 | CFF_COUNT_CHECK_WIDTH, /* cntrmask */ + 0, /* dotsection */ + + 1, /* abs */ + 2, + 2, + 2, + 1, + 0, + 2, + 1, + + 1, /* blend */ + + 1, /* drop */ + 2, + 1, + 2, + 1, + + 2, /* put */ + 1, + 4, + 3, + + 2, /* and */ + 2, + 1, + 2, + 4, + + 1, /* callsubr */ + 1, + 0, + + 2, /* hsbw */ + 0, + 0, + 0, + 5, /* seac */ + 4, /* sbw */ + 2 /* setcurrentpoint */ + }; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** *********/ + /********** GENERIC CHARSTRING PARSING *********/ + /********** *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_builder_init */ + /* */ + /* <Description> */ + /* Initializes a given glyph builder. */ + /* */ + /* <InOut> */ + /* builder :: A pointer to the glyph builder to initialize. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* size :: The current size object. */ + /* */ + /* glyph :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting is active. */ + /* */ + static void + cff_builder_init( CFF_Builder* builder, + TT_Face face, + CFF_Size size, + CFF_GlyphSlot glyph, + FT_Bool hinting ) + { + builder->path_begun = 0; + builder->load_points = 1; + + builder->face = face; + builder->glyph = glyph; + builder->memory = face->root.memory; + + if ( glyph ) + { + FT_GlyphLoader loader = glyph->root.internal->loader; + + + builder->loader = loader; + builder->base = &loader->base.outline; + builder->current = &loader->current.outline; + FT_GlyphLoader_Rewind( loader ); + + builder->hints_globals = 0; + builder->hints_funcs = 0; + + if ( hinting && size ) + { + CFF_Internal internal = (CFF_Internal)size->root.internal; + + + builder->hints_globals = (void *)internal->topfont; + builder->hints_funcs = glyph->root.internal->glyph_hints; + } + } + + builder->pos_x = 0; + builder->pos_y = 0; + + builder->left_bearing.x = 0; + builder->left_bearing.y = 0; + builder->advance.x = 0; + builder->advance.y = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_builder_done */ + /* */ + /* <Description> */ + /* Finalizes a given glyph builder. Its contents can still be used */ + /* after the call, but the function saves important information */ + /* within the corresponding glyph slot. */ + /* */ + /* <Input> */ + /* builder :: A pointer to the glyph builder to finalize. */ + /* */ + static void + cff_builder_done( CFF_Builder* builder ) + { + CFF_GlyphSlot glyph = builder->glyph; + + + if ( glyph ) + glyph->root.outline = *builder->base; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_compute_bias */ + /* */ + /* <Description> */ + /* Computes the bias value in dependence of the number of glyph */ + /* subroutines. */ + /* */ + /* <Input> */ + /* in_charstring_type :: The `CharstringType' value of the top DICT */ + /* dictionary. */ + /* */ + /* num_subrs :: The number of glyph subroutines. */ + /* */ + /* <Return> */ + /* The bias value. */ + static FT_Int + cff_compute_bias( FT_Int in_charstring_type, + FT_UInt num_subrs ) + { + FT_Int result; + + + if ( in_charstring_type == 1 ) + result = 0; + else if ( num_subrs < 1240 ) + result = 107; + else if ( num_subrs < 33900U ) + result = 1131; + else + result = 32768U; + + return result; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_decoder_init */ + /* */ + /* <Description> */ + /* Initializes a given glyph decoder. */ + /* */ + /* <InOut> */ + /* decoder :: A pointer to the glyph builder to initialize. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* size :: The current size object. */ + /* */ + /* slot :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting is active. */ + /* */ + /* hint_mode :: The hinting mode. */ + /* */ + FT_LOCAL_DEF( void ) + cff_decoder_init( CFF_Decoder* decoder, + TT_Face face, + CFF_Size size, + CFF_GlyphSlot slot, + FT_Bool hinting, + FT_Render_Mode hint_mode ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + /* clear everything */ + FT_MEM_ZERO( decoder, sizeof ( *decoder ) ); + + /* initialize builder */ + cff_builder_init( &decoder->builder, face, size, slot, hinting ); + + /* initialize Type2 decoder */ + decoder->cff = cff; + decoder->num_globals = cff->global_subrs_index.count; + decoder->globals = cff->global_subrs; + decoder->globals_bias = cff_compute_bias( + cff->top_font.font_dict.charstring_type, + decoder->num_globals ); + + decoder->hint_mode = hint_mode; + } + + + /* this function is used to select the subfont */ + /* and the locals subrs array */ + FT_LOCAL_DEF( FT_Error ) + cff_decoder_prepare( CFF_Decoder* decoder, + CFF_Size size, + FT_UInt glyph_index ) + { + CFF_Builder *builder = &decoder->builder; + CFF_Font cff = (CFF_Font)builder->face->extra.data; + CFF_SubFont sub = &cff->top_font; + FT_Error error = CFF_Err_Ok; + + + /* manage CID fonts */ + if ( cff->num_subfonts ) + { + FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, glyph_index ); + + + if ( fd_index >= cff->num_subfonts ) + { + FT_TRACE4(( "cff_decoder_prepare: invalid CID subfont index\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + FT_TRACE3(( "glyph index %d (subfont %d):\n", glyph_index, fd_index )); + + sub = cff->subfonts[fd_index]; + + if ( builder->hints_funcs && size ) + { + CFF_Internal internal = (CFF_Internal)size->root.internal; + + + /* for CFFs without subfonts, this value has already been set */ + builder->hints_globals = (void *)internal->subfonts[fd_index]; + } + } +#ifdef FT_DEBUG_LEVEL_TRACE + else + FT_TRACE3(( "glyph index %d:\n", glyph_index )); +#endif + + decoder->num_locals = sub->local_subrs_index.count; + decoder->locals = sub->local_subrs; + decoder->locals_bias = cff_compute_bias( + decoder->cff->top_font.font_dict.charstring_type, + decoder->num_locals ); + + decoder->glyph_width = sub->private_dict.default_width; + decoder->nominal_width = sub->private_dict.nominal_width; + + Exit: + return error; + } + + + /* check that there is enough space for `count' more points */ + static FT_Error + check_points( CFF_Builder* builder, + FT_Int count ) + { + return FT_GLYPHLOADER_CHECK_POINTS( builder->loader, count, 0 ); + } + + + /* add a new point, do not check space */ + static void + cff_builder_add_point( CFF_Builder* builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ) + { + FT_Outline* outline = builder->current; + + + if ( builder->load_points ) + { + FT_Vector* point = outline->points + outline->n_points; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points; + + + point->x = x >> 16; + point->y = y >> 16; + *control = (FT_Byte)( flag ? FT_CURVE_TAG_ON : FT_CURVE_TAG_CUBIC ); + } + + outline->n_points++; + } + + + /* check space for a new on-curve point, then add it */ + static FT_Error + cff_builder_add_point1( CFF_Builder* builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error; + + + error = check_points( builder, 1 ); + if ( !error ) + cff_builder_add_point( builder, x, y, 1 ); + + return error; + } + + + /* check space for a new contour, then add it */ + static FT_Error + cff_builder_add_contour( CFF_Builder* builder ) + { + FT_Outline* outline = builder->current; + FT_Error error; + + + if ( !builder->load_points ) + { + outline->n_contours++; + return CFF_Err_Ok; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( builder->loader, 0, 1 ); + if ( !error ) + { + if ( outline->n_contours > 0 ) + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + + outline->n_contours++; + } + + return error; + } + + + /* if a path was begun, add its first on-curve point */ + static FT_Error + cff_builder_start_point( CFF_Builder* builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error = CFF_Err_Ok; + + + /* test whether we are building a new contour */ + if ( !builder->path_begun ) + { + builder->path_begun = 1; + error = cff_builder_add_contour( builder ); + if ( !error ) + error = cff_builder_add_point1( builder, x, y ); + } + + return error; + } + + + /* close the current contour */ + static void + cff_builder_close_contour( CFF_Builder* builder ) + { + FT_Outline* outline = builder->current; + FT_Int first; + + + if ( !outline ) + return; + + first = outline->n_contours <= 1 + ? 0 : outline->contours[outline->n_contours - 2] + 1; + + /* We must not include the last point in the path if it */ + /* is located on the first point. */ + if ( outline->n_points > 1 ) + { + FT_Vector* p1 = outline->points + first; + FT_Vector* p2 = outline->points + outline->n_points - 1; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points - 1; + + + /* `delete' last point only if it coincides with the first */ + /* point and if it is not a control point (which can happen). */ + if ( p1->x == p2->x && p1->y == p2->y ) + if ( *control == FT_CURVE_TAG_ON ) + outline->n_points--; + } + + if ( outline->n_contours > 0 ) + { + /* Don't add contours only consisting of one point, i.e., */ + /* check whether begin point and last point are the same. */ + if ( first == outline->n_points - 1 ) + { + outline->n_contours--; + outline->n_points--; + } + else + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + } + } + + + static FT_Int + cff_lookup_glyph_by_stdcharcode( CFF_Font cff, + FT_Int charcode ) + { + FT_UInt n; + FT_UShort glyph_sid; + + + /* CID-keyed fonts don't have glyph names */ + if ( !cff->charset.sids ) + return -1; + + /* check range of standard char code */ + if ( charcode < 0 || charcode > 255 ) + return -1; + + /* Get code to SID mapping from `cff_standard_encoding'. */ + glyph_sid = cff_get_standard_encoding( (FT_UInt)charcode ); + + for ( n = 0; n < cff->num_glyphs; n++ ) + { + if ( cff->charset.sids[n] == glyph_sid ) + return n; + } + + return -1; + } + + + static FT_Error + cff_get_glyph_data( TT_Face face, + FT_UInt glyph_index, + FT_Byte** pointer, + FT_ULong* length ) + { +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* For incremental fonts get the character data using the */ + /* callback function. */ + if ( face->root.internal->incremental_interface ) + { + FT_Data data; + FT_Error error = + face->root.internal->incremental_interface->funcs->get_glyph_data( + face->root.internal->incremental_interface->object, + glyph_index, &data ); + + + *pointer = (FT_Byte*)data.pointer; + *length = data.length; + + return error; + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + { + CFF_Font cff = (CFF_Font)(face->extra.data); + + + return cff_index_access_element( &cff->charstrings_index, glyph_index, + pointer, length ); + } + } + + + static void + cff_free_glyph_data( TT_Face face, + FT_Byte** pointer, + FT_ULong length ) + { +#ifndef FT_CONFIG_OPTION_INCREMENTAL + FT_UNUSED( length ); +#endif + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* For incremental fonts get the character data using the */ + /* callback function. */ + if ( face->root.internal->incremental_interface ) + { + FT_Data data; + + + data.pointer = *pointer; + data.length = length; + + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, &data ); + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + { + CFF_Font cff = (CFF_Font)(face->extra.data); + + + cff_index_forget_element( &cff->charstrings_index, pointer ); + } + } + + + static FT_Error + cff_operator_seac( CFF_Decoder* decoder, + FT_Pos asb, + FT_Pos adx, + FT_Pos ady, + FT_Int bchar, + FT_Int achar ) + { + FT_Error error; + CFF_Builder* builder = &decoder->builder; + FT_Int bchar_index, achar_index; + TT_Face face = decoder->builder.face; + FT_Vector left_bearing, advance; + FT_Byte* charstring; + FT_ULong charstring_len; + FT_Pos glyph_width; + + + if ( decoder->seac ) + { + FT_ERROR(( "cff_operator_seac: invalid nested seac\n" )); + return CFF_Err_Syntax_Error; + } + + adx += decoder->builder.left_bearing.x; + ady += decoder->builder.left_bearing.y; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* Incremental fonts don't necessarily have valid charsets. */ + /* They use the character code, not the glyph index, in this case. */ + if ( face->root.internal->incremental_interface ) + { + bchar_index = bchar; + achar_index = achar; + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + CFF_Font cff = (CFF_Font)(face->extra.data); + + + bchar_index = cff_lookup_glyph_by_stdcharcode( cff, bchar ); + achar_index = cff_lookup_glyph_by_stdcharcode( cff, achar ); + } + + if ( bchar_index < 0 || achar_index < 0 ) + { + FT_ERROR(( "cff_operator_seac:" + " invalid seac character code arguments\n" )); + return CFF_Err_Syntax_Error; + } + + /* If we are trying to load a composite glyph, do not load the */ + /* accent character and return the array of subglyphs. */ + if ( builder->no_recurse ) + { + FT_GlyphSlot glyph = (FT_GlyphSlot)builder->glyph; + FT_GlyphLoader loader = glyph->internal->loader; + FT_SubGlyph subg; + + + /* reallocate subglyph array if necessary */ + error = FT_GlyphLoader_CheckSubGlyphs( loader, 2 ); + if ( error ) + goto Exit; + + subg = loader->current.subglyphs; + + /* subglyph 0 = base character */ + subg->index = bchar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES | + FT_SUBGLYPH_FLAG_USE_MY_METRICS; + subg->arg1 = 0; + subg->arg2 = 0; + subg++; + + /* subglyph 1 = accent character */ + subg->index = achar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES; + subg->arg1 = (FT_Int)( adx >> 16 ); + subg->arg2 = (FT_Int)( ady >> 16 ); + + /* set up remaining glyph fields */ + glyph->num_subglyphs = 2; + glyph->subglyphs = loader->base.subglyphs; + glyph->format = FT_GLYPH_FORMAT_COMPOSITE; + + loader->current.num_subglyphs = 2; + } + + FT_GlyphLoader_Prepare( builder->loader ); + + /* First load `bchar' in builder */ + error = cff_get_glyph_data( face, bchar_index, + &charstring, &charstring_len ); + if ( !error ) + { + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = cff_decoder_parse_charstrings( decoder, charstring, + charstring_len ); + decoder->seac = FALSE; + + cff_free_glyph_data( face, &charstring, charstring_len ); + + if ( error ) + goto Exit; + } + + /* Save the left bearing, advance and glyph width of the base */ + /* character as they will be erased by the next load. */ + + left_bearing = builder->left_bearing; + advance = builder->advance; + glyph_width = decoder->glyph_width; + + builder->left_bearing.x = 0; + builder->left_bearing.y = 0; + + builder->pos_x = adx - asb; + builder->pos_y = ady; + + /* Now load `achar' on top of the base outline. */ + error = cff_get_glyph_data( face, achar_index, + &charstring, &charstring_len ); + if ( !error ) + { + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = cff_decoder_parse_charstrings( decoder, charstring, + charstring_len ); + decoder->seac = FALSE; + + cff_free_glyph_data( face, &charstring, charstring_len ); + + if ( error ) + goto Exit; + } + + /* Restore the left side bearing, advance and glyph width */ + /* of the base character. */ + builder->left_bearing = left_bearing; + builder->advance = advance; + decoder->glyph_width = glyph_width; + + builder->pos_x = 0; + builder->pos_y = 0; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_decoder_parse_charstrings */ + /* */ + /* <Description> */ + /* Parses a given Type 2 charstrings program. */ + /* */ + /* <InOut> */ + /* decoder :: The current Type 1 decoder. */ + /* */ + /* <Input> */ + /* charstring_base :: The base of the charstring stream. */ + /* */ + /* charstring_len :: The length in bytes of the charstring stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + cff_decoder_parse_charstrings( CFF_Decoder* decoder, + FT_Byte* charstring_base, + FT_ULong charstring_len ) + { + FT_Error error; + CFF_Decoder_Zone* zone; + FT_Byte* ip; + FT_Byte* limit; + CFF_Builder* builder = &decoder->builder; + FT_Pos x, y; + FT_Fixed seed; + FT_Fixed* stack; + FT_Int charstring_type = + decoder->cff->top_font.font_dict.charstring_type; + + T2_Hints_Funcs hinter; + + + /* set default width */ + decoder->num_hints = 0; + decoder->read_width = 1; + + /* compute random seed from stack address of parameter */ + seed = (FT_Fixed)( ( (FT_PtrDist)(char*)&seed ^ + (FT_PtrDist)(char*)&decoder ^ + (FT_PtrDist)(char*)&charstring_base ) & + FT_ULONG_MAX ) ; + seed = ( seed ^ ( seed >> 10 ) ^ ( seed >> 20 ) ) & 0xFFFFL; + if ( seed == 0 ) + seed = 0x7384; + + /* initialize the decoder */ + decoder->top = decoder->stack; + decoder->zone = decoder->zones; + zone = decoder->zones; + stack = decoder->top; + + hinter = (T2_Hints_Funcs)builder->hints_funcs; + + builder->path_begun = 0; + + zone->base = charstring_base; + limit = zone->limit = charstring_base + charstring_len; + ip = zone->cursor = zone->base; + + error = CFF_Err_Ok; + + x = builder->pos_x; + y = builder->pos_y; + + /* begin hints recording session, if any */ + if ( hinter ) + hinter->open( hinter->hints ); + + /* now execute loop */ + while ( ip < limit ) + { + CFF_Operator op; + FT_Byte v; + + + /********************************************************************/ + /* */ + /* Decode operator or operand */ + /* */ + v = *ip++; + if ( v >= 32 || v == 28 ) + { + FT_Int shift = 16; + FT_Int32 val; + + + /* this is an operand, push it on the stack */ + if ( v == 28 ) + { + if ( ip + 1 >= limit ) + goto Syntax_Error; + val = (FT_Short)( ( (FT_Short)ip[0] << 8 ) | ip[1] ); + ip += 2; + } + else if ( v < 247 ) + val = (FT_Int32)v - 139; + else if ( v < 251 ) + { + if ( ip >= limit ) + goto Syntax_Error; + val = ( (FT_Int32)v - 247 ) * 256 + *ip++ + 108; + } + else if ( v < 255 ) + { + if ( ip >= limit ) + goto Syntax_Error; + val = -( (FT_Int32)v - 251 ) * 256 - *ip++ - 108; + } + else + { + if ( ip + 3 >= limit ) + goto Syntax_Error; + val = ( (FT_Int32)ip[0] << 24 ) | + ( (FT_Int32)ip[1] << 16 ) | + ( (FT_Int32)ip[2] << 8 ) | + ip[3]; + ip += 4; + if ( charstring_type == 2 ) + shift = 0; + } + if ( decoder->top - stack >= CFF_MAX_OPERANDS ) + goto Stack_Overflow; + + val <<= shift; + *decoder->top++ = val; + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( !( val & 0xFFFFL ) ) + FT_TRACE4(( " %ld", (FT_Int32)( val >> 16 ) )); + else + FT_TRACE4(( " %.2f", val / 65536.0 )); +#endif + + } + else + { + /* The specification says that normally arguments are to be taken */ + /* from the bottom of the stack. However, this seems not to be */ + /* correct, at least for Acroread 7.0.8 on GNU/Linux: It pops the */ + /* arguments similar to a PS interpreter. */ + + FT_Fixed* args = decoder->top; + FT_Int num_args = (FT_Int)( args - decoder->stack ); + FT_Int req_args; + + + /* find operator */ + op = cff_op_unknown; + + switch ( v ) + { + case 1: + op = cff_op_hstem; + break; + case 3: + op = cff_op_vstem; + break; + case 4: + op = cff_op_vmoveto; + break; + case 5: + op = cff_op_rlineto; + break; + case 6: + op = cff_op_hlineto; + break; + case 7: + op = cff_op_vlineto; + break; + case 8: + op = cff_op_rrcurveto; + break; + case 9: + op = cff_op_closepath; + break; + case 10: + op = cff_op_callsubr; + break; + case 11: + op = cff_op_return; + break; + case 12: + { + if ( ip >= limit ) + goto Syntax_Error; + v = *ip++; + + switch ( v ) + { + case 0: + op = cff_op_dotsection; + break; + case 1: /* this is actually the Type1 vstem3 operator */ + op = cff_op_vstem; + break; + case 2: /* this is actually the Type1 hstem3 operator */ + op = cff_op_hstem; + break; + case 3: + op = cff_op_and; + break; + case 4: + op = cff_op_or; + break; + case 5: + op = cff_op_not; + break; + case 6: + op = cff_op_seac; + break; + case 7: + op = cff_op_sbw; + break; + case 8: + op = cff_op_store; + break; + case 9: + op = cff_op_abs; + break; + case 10: + op = cff_op_add; + break; + case 11: + op = cff_op_sub; + break; + case 12: + op = cff_op_div; + break; + case 13: + op = cff_op_load; + break; + case 14: + op = cff_op_neg; + break; + case 15: + op = cff_op_eq; + break; + case 16: + op = cff_op_callothersubr; + break; + case 17: + op = cff_op_pop; + break; + case 18: + op = cff_op_drop; + break; + case 20: + op = cff_op_put; + break; + case 21: + op = cff_op_get; + break; + case 22: + op = cff_op_ifelse; + break; + case 23: + op = cff_op_random; + break; + case 24: + op = cff_op_mul; + break; + case 26: + op = cff_op_sqrt; + break; + case 27: + op = cff_op_dup; + break; + case 28: + op = cff_op_exch; + break; + case 29: + op = cff_op_index; + break; + case 30: + op = cff_op_roll; + break; + case 33: + op = cff_op_setcurrentpoint; + break; + case 34: + op = cff_op_hflex; + break; + case 35: + op = cff_op_flex; + break; + case 36: + op = cff_op_hflex1; + break; + case 37: + op = cff_op_flex1; + break; + default: + FT_TRACE4(( " unknown op (12, %d)\n", v )); + break; + } + } + break; + case 13: + op = cff_op_hsbw; + break; + case 14: + op = cff_op_endchar; + break; + case 16: + op = cff_op_blend; + break; + case 18: + op = cff_op_hstemhm; + break; + case 19: + op = cff_op_hintmask; + break; + case 20: + op = cff_op_cntrmask; + break; + case 21: + op = cff_op_rmoveto; + break; + case 22: + op = cff_op_hmoveto; + break; + case 23: + op = cff_op_vstemhm; + break; + case 24: + op = cff_op_rcurveline; + break; + case 25: + op = cff_op_rlinecurve; + break; + case 26: + op = cff_op_vvcurveto; + break; + case 27: + op = cff_op_hhcurveto; + break; + case 29: + op = cff_op_callgsubr; + break; + case 30: + op = cff_op_vhcurveto; + break; + case 31: + op = cff_op_hvcurveto; + break; + default: + FT_TRACE4(( " unknown op (%d)\n", v )); + break; + } + + if ( op == cff_op_unknown ) + continue; + + /* check arguments */ + req_args = cff_argument_counts[op]; + if ( req_args & CFF_COUNT_CHECK_WIDTH ) + { + if ( num_args > 0 && decoder->read_width ) + { + /* If `nominal_width' is non-zero, the number is really a */ + /* difference against `nominal_width'. Else, the number here */ + /* is truly a width, not a difference against `nominal_width'. */ + /* If the font does not set `nominal_width', then */ + /* `nominal_width' defaults to zero, and so we can set */ + /* `glyph_width' to `nominal_width' plus number on the stack */ + /* -- for either case. */ + + FT_Int set_width_ok; + + + switch ( op ) + { + case cff_op_hmoveto: + case cff_op_vmoveto: + set_width_ok = num_args & 2; + break; + + case cff_op_hstem: + case cff_op_vstem: + case cff_op_hstemhm: + case cff_op_vstemhm: + case cff_op_rmoveto: + case cff_op_hintmask: + case cff_op_cntrmask: + set_width_ok = num_args & 1; + break; + + case cff_op_endchar: + /* If there is a width specified for endchar, we either have */ + /* 1 argument or 5 arguments. We like to argue. */ + set_width_ok = ( num_args == 5 ) || ( num_args == 1 ); + break; + + default: + set_width_ok = 0; + break; + } + + if ( set_width_ok ) + { + decoder->glyph_width = decoder->nominal_width + + ( stack[0] >> 16 ); + + if ( decoder->width_only ) + { + /* we only want the advance width; stop here */ + break; + } + + /* Consumed an argument. */ + num_args--; + } + } + + decoder->read_width = 0; + req_args = 0; + } + + req_args &= 0x000F; + if ( num_args < req_args ) + goto Stack_Underflow; + args -= req_args; + num_args -= req_args; + + /* At this point, `args' points to the first argument of the */ + /* operand in case `req_args' isn't zero. Otherwise, we have */ + /* to adjust `args' manually. */ + + /* Note that we only pop arguments from the stack which we */ + /* really need and can digest so that we can continue in case */ + /* of superfluous stack elements. */ + + switch ( op ) + { + case cff_op_hstem: + case cff_op_vstem: + case cff_op_hstemhm: + case cff_op_vstemhm: + /* the number of arguments is always even here */ + FT_TRACE4(( + op == cff_op_hstem ? " hstem\n" : + ( op == cff_op_vstem ? " vstem\n" : + ( op == cff_op_hstemhm ? " hstemhm\n" : " vstemhm\n" ) ) )); + + if ( hinter ) + hinter->stems( hinter->hints, + ( op == cff_op_hstem || op == cff_op_hstemhm ), + num_args / 2, + args - ( num_args & ~1 ) ); + + decoder->num_hints += num_args / 2; + args = stack; + break; + + case cff_op_hintmask: + case cff_op_cntrmask: + FT_TRACE4(( op == cff_op_hintmask ? " hintmask" : " cntrmask" )); + + /* implement vstem when needed -- */ + /* the specification doesn't say it, but this also works */ + /* with the 'cntrmask' operator */ + /* */ + if ( num_args > 0 ) + { + if ( hinter ) + hinter->stems( hinter->hints, + 0, + num_args / 2, + args - ( num_args & ~1 ) ); + + decoder->num_hints += num_args / 2; + } + + /* In a valid charstring there must be at least one byte */ + /* after `hintmask' or `cntrmask' (e.g., for a `return' */ + /* instruction). Additionally, there must be space for */ + /* `num_hints' bits. */ + + if ( ( ip + ( ( decoder->num_hints + 7 ) >> 3 ) ) >= limit ) + goto Syntax_Error; + + if ( hinter ) + { + if ( op == cff_op_hintmask ) + hinter->hintmask( hinter->hints, + builder->current->n_points, + decoder->num_hints, + ip ); + else + hinter->counter( hinter->hints, + decoder->num_hints, + ip ); + } + +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_UInt maskbyte; + + + FT_TRACE4(( " (maskbytes:" )); + + for ( maskbyte = 0; + maskbyte < (FT_UInt)( ( decoder->num_hints + 7 ) >> 3 ); + maskbyte++, ip++ ) + FT_TRACE4(( " 0x%02X", *ip )); + + FT_TRACE4(( ")\n" )); + } +#else + ip += ( decoder->num_hints + 7 ) >> 3; +#endif + args = stack; + break; + + case cff_op_rmoveto: + FT_TRACE4(( " rmoveto\n" )); + + cff_builder_close_contour( builder ); + builder->path_begun = 0; + x += args[-2]; + y += args[-1]; + args = stack; + break; + + case cff_op_vmoveto: + FT_TRACE4(( " vmoveto\n" )); + + cff_builder_close_contour( builder ); + builder->path_begun = 0; + y += args[-1]; + args = stack; + break; + + case cff_op_hmoveto: + FT_TRACE4(( " hmoveto\n" )); + + cff_builder_close_contour( builder ); + builder->path_begun = 0; + x += args[-1]; + args = stack; + break; + + case cff_op_rlineto: + FT_TRACE4(( " rlineto\n" )); + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, num_args / 2 ) ) + goto Fail; + + if ( num_args < 2 ) + goto Stack_Underflow; + + args -= num_args & ~1; + while ( args < decoder->top ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 1 ); + args += 2; + } + args = stack; + break; + + case cff_op_hlineto: + case cff_op_vlineto: + { + FT_Int phase = ( op == cff_op_hlineto ); + + + FT_TRACE4(( op == cff_op_hlineto ? " hlineto\n" + : " vlineto\n" )); + + if ( num_args < 0 ) + goto Stack_Underflow; + + /* there exist subsetted fonts (found in PDFs) */ + /* which call `hlineto' without arguments */ + if ( num_args == 0 ) + break; + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, num_args ) ) + goto Fail; + + args = stack; + while ( args < decoder->top ) + { + if ( phase ) + x += args[0]; + else + y += args[0]; + + if ( cff_builder_add_point1( builder, x, y ) ) + goto Fail; + + args++; + phase ^= 1; + } + args = stack; + } + break; + + case cff_op_rrcurveto: + { + FT_Int nargs; + + + FT_TRACE4(( " rrcurveto\n" )); + + if ( num_args < 6 ) + goto Stack_Underflow; + + nargs = num_args - num_args % 6; + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, nargs / 2 ) ) + goto Fail; + + args -= nargs; + while ( args < decoder->top ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[4]; + y += args[5]; + cff_builder_add_point( builder, x, y, 1 ); + args += 6; + } + args = stack; + } + break; + + case cff_op_vvcurveto: + { + FT_Int nargs; + + + FT_TRACE4(( " vvcurveto\n" )); + + if ( num_args < 4 ) + goto Stack_Underflow; + + /* if num_args isn't of the form 4n or 4n+1, */ + /* we reduce it to 4n+1 */ + + nargs = num_args - num_args % 4; + if ( num_args - nargs > 0 ) + nargs += 1; + + if ( cff_builder_start_point( builder, x, y ) ) + goto Fail; + + args -= nargs; + + if ( nargs & 1 ) + { + x += args[0]; + args++; + nargs--; + } + + if ( check_points( builder, 3 * ( nargs / 4 ) ) ) + goto Fail; + + while ( args < decoder->top ) + { + y += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + y += args[3]; + cff_builder_add_point( builder, x, y, 1 ); + args += 4; + } + args = stack; + } + break; + + case cff_op_hhcurveto: + { + FT_Int nargs; + + + FT_TRACE4(( " hhcurveto\n" )); + + if ( num_args < 4 ) + goto Stack_Underflow; + + /* if num_args isn't of the form 4n or 4n+1, */ + /* we reduce it to 4n+1 */ + + nargs = num_args - num_args % 4; + if ( num_args - nargs > 0 ) + nargs += 1; + + if ( cff_builder_start_point( builder, x, y ) ) + goto Fail; + + args -= nargs; + if ( nargs & 1 ) + { + y += args[0]; + args++; + nargs--; + } + + if ( check_points( builder, 3 * ( nargs / 4 ) ) ) + goto Fail; + + while ( args < decoder->top ) + { + x += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[3]; + cff_builder_add_point( builder, x, y, 1 ); + args += 4; + } + args = stack; + } + break; + + case cff_op_vhcurveto: + case cff_op_hvcurveto: + { + FT_Int phase; + FT_Int nargs; + + + FT_TRACE4(( op == cff_op_vhcurveto ? " vhcurveto\n" + : " hvcurveto\n" )); + + if ( cff_builder_start_point( builder, x, y ) ) + goto Fail; + + if ( num_args < 4 ) + goto Stack_Underflow; + + /* if num_args isn't of the form 8n, 8n+1, 8n+4, or 8n+5, */ + /* we reduce it to the largest one which fits */ + + nargs = num_args - num_args % 4; + if ( num_args - nargs > 0 ) + nargs += 1; + + args -= nargs; + if ( check_points( builder, ( nargs / 4 ) * 3 ) ) + goto Stack_Underflow; + + phase = ( op == cff_op_hvcurveto ); + + while ( nargs >= 4 ) + { + nargs -= 4; + if ( phase ) + { + x += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + y += args[3]; + if ( nargs == 1 ) + x += args[4]; + cff_builder_add_point( builder, x, y, 1 ); + } + else + { + y += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[3]; + if ( nargs == 1 ) + y += args[4]; + cff_builder_add_point( builder, x, y, 1 ); + } + args += 4; + phase ^= 1; + } + args = stack; + } + break; + + case cff_op_rlinecurve: + { + FT_Int num_lines; + FT_Int nargs; + + + FT_TRACE4(( " rlinecurve\n" )); + + if ( num_args < 8 ) + goto Stack_Underflow; + + nargs = num_args & ~1; + num_lines = ( nargs - 6 ) / 2; + + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, num_lines + 3 ) ) + goto Fail; + + args -= nargs; + + /* first, add the line segments */ + while ( num_lines > 0 ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 1 ); + args += 2; + num_lines--; + } + + /* then the curve */ + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[4]; + y += args[5]; + cff_builder_add_point( builder, x, y, 1 ); + args = stack; + } + break; + + case cff_op_rcurveline: + { + FT_Int num_curves; + FT_Int nargs; + + + FT_TRACE4(( " rcurveline\n" )); + + if ( num_args < 8 ) + goto Stack_Underflow; + + nargs = num_args - 2; + nargs = nargs - nargs % 6 + 2; + num_curves = ( nargs - 2 ) / 6; + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, num_curves * 3 + 2 ) ) + goto Fail; + + args -= nargs; + + /* first, add the curves */ + while ( num_curves > 0 ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[4]; + y += args[5]; + cff_builder_add_point( builder, x, y, 1 ); + args += 6; + num_curves--; + } + + /* then the final line */ + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 1 ); + args = stack; + } + break; + + case cff_op_hflex1: + { + FT_Pos start_y; + + + FT_TRACE4(( " hflex1\n" )); + + /* adding five more points: 4 control points, 1 on-curve point */ + /* -- make sure we have enough space for the start point if it */ + /* needs to be added */ + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + /* record the starting point's y position for later use */ + start_y = y; + + /* first control point */ + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + + /* second control point */ + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + + /* join point; on curve, with y-value the same as the last */ + /* control point's y-value */ + x += args[4]; + cff_builder_add_point( builder, x, y, 1 ); + + /* third control point, with y-value the same as the join */ + /* point's y-value */ + x += args[5]; + cff_builder_add_point( builder, x, y, 0 ); + + /* fourth control point */ + x += args[6]; + y += args[7]; + cff_builder_add_point( builder, x, y, 0 ); + + /* ending point, with y-value the same as the start */ + x += args[8]; + y = start_y; + cff_builder_add_point( builder, x, y, 1 ); + + args = stack; + break; + } + + case cff_op_hflex: + { + FT_Pos start_y; + + + FT_TRACE4(( " hflex\n" )); + + /* adding six more points; 4 control points, 2 on-curve points */ + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + /* record the starting point's y-position for later use */ + start_y = y; + + /* first control point */ + x += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + + /* second control point */ + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + + /* join point; on curve, with y-value the same as the last */ + /* control point's y-value */ + x += args[3]; + cff_builder_add_point( builder, x, y, 1 ); + + /* third control point, with y-value the same as the join */ + /* point's y-value */ + x += args[4]; + cff_builder_add_point( builder, x, y, 0 ); + + /* fourth control point */ + x += args[5]; + y = start_y; + cff_builder_add_point( builder, x, y, 0 ); + + /* ending point, with y-value the same as the start point's */ + /* y-value -- we don't add this point, though */ + x += args[6]; + cff_builder_add_point( builder, x, y, 1 ); + + args = stack; + break; + } + + case cff_op_flex1: + { + FT_Pos start_x, start_y; /* record start x, y values for */ + /* alter use */ + FT_Fixed dx = 0, dy = 0; /* used in horizontal/vertical */ + /* algorithm below */ + FT_Int horizontal, count; + FT_Fixed* temp; + + + FT_TRACE4(( " flex1\n" )); + + /* adding six more points; 4 control points, 2 on-curve points */ + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + /* record the starting point's x, y position for later use */ + start_x = x; + start_y = y; + + /* XXX: figure out whether this is supposed to be a horizontal */ + /* or vertical flex; the Type 2 specification is vague... */ + + temp = args; + + /* grab up to the last argument */ + for ( count = 5; count > 0; count-- ) + { + dx += temp[0]; + dy += temp[1]; + temp += 2; + } + + if ( dx < 0 ) + dx = -dx; + if ( dy < 0 ) + dy = -dy; + + /* strange test, but here it is... */ + horizontal = ( dx > dy ); + + for ( count = 5; count > 0; count-- ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, + (FT_Bool)( count == 3 ) ); + args += 2; + } + + /* is last operand an x- or y-delta? */ + if ( horizontal ) + { + x += args[0]; + y = start_y; + } + else + { + x = start_x; + y += args[0]; + } + + cff_builder_add_point( builder, x, y, 1 ); + + args = stack; + break; + } + + case cff_op_flex: + { + FT_UInt count; + + + FT_TRACE4(( " flex\n" )); + + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + for ( count = 6; count > 0; count-- ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, + (FT_Bool)( count == 4 || count == 1 ) ); + args += 2; + } + + args = stack; + } + break; + + case cff_op_seac: + FT_TRACE4(( " seac\n" )); + + error = cff_operator_seac( decoder, + args[0], args[1], args[2], + (FT_Int)( args[3] >> 16 ), + (FT_Int)( args[4] >> 16 ) ); + + /* add current outline to the glyph slot */ + FT_GlyphLoader_Add( builder->loader ); + + /* return now! */ + FT_TRACE4(( "\n" )); + return error; + + case cff_op_endchar: + FT_TRACE4(( " endchar\n" )); + + /* We are going to emulate the seac operator. */ + if ( num_args >= 4 ) + { + /* Save glyph width so that the subglyphs don't overwrite it. */ + FT_Pos glyph_width = decoder->glyph_width; + + error = cff_operator_seac( decoder, + 0L, args[-4], args[-3], + (FT_Int)( args[-2] >> 16 ), + (FT_Int)( args[-1] >> 16 ) ); + + decoder->glyph_width = glyph_width; + } + else + { + if ( !error ) + error = CFF_Err_Ok; + + cff_builder_close_contour( builder ); + + /* close hints recording session */ + if ( hinter ) + { + if ( hinter->close( hinter->hints, + builder->current->n_points ) ) + goto Syntax_Error; + + /* apply hints to the loaded glyph outline now */ + hinter->apply( hinter->hints, + builder->current, + (PSH_Globals)builder->hints_globals, + decoder->hint_mode ); + } + + /* add current outline to the glyph slot */ + FT_GlyphLoader_Add( builder->loader ); + } + + /* return now! */ + FT_TRACE4(( "\n" )); + return error; + + case cff_op_abs: + FT_TRACE4(( " abs\n" )); + + if ( args[0] < 0 ) + args[0] = -args[0]; + args++; + break; + + case cff_op_add: + FT_TRACE4(( " add\n" )); + + args[0] += args[1]; + args++; + break; + + case cff_op_sub: + FT_TRACE4(( " sub\n" )); + + args[0] -= args[1]; + args++; + break; + + case cff_op_div: + FT_TRACE4(( " div\n" )); + + args[0] = FT_DivFix( args[0], args[1] ); + args++; + break; + + case cff_op_neg: + FT_TRACE4(( " neg\n" )); + + args[0] = -args[0]; + args++; + break; + + case cff_op_random: + { + FT_Fixed Rand; + + + FT_TRACE4(( " rand\n" )); + + Rand = seed; + if ( Rand >= 0x8000L ) + Rand++; + + args[0] = Rand; + seed = FT_MulFix( seed, 0x10000L - seed ); + if ( seed == 0 ) + seed += 0x2873; + args++; + } + break; + + case cff_op_mul: + FT_TRACE4(( " mul\n" )); + + args[0] = FT_MulFix( args[0], args[1] ); + args++; + break; + + case cff_op_sqrt: + FT_TRACE4(( " sqrt\n" )); + + if ( args[0] > 0 ) + { + FT_Int count = 9; + FT_Fixed root = args[0]; + FT_Fixed new_root; + + + for (;;) + { + new_root = ( root + FT_DivFix( args[0], root ) + 1 ) >> 1; + if ( new_root == root || count <= 0 ) + break; + root = new_root; + } + args[0] = new_root; + } + else + args[0] = 0; + args++; + break; + + case cff_op_drop: + /* nothing */ + FT_TRACE4(( " drop\n" )); + + break; + + case cff_op_exch: + { + FT_Fixed tmp; + + + FT_TRACE4(( " exch\n" )); + + tmp = args[0]; + args[0] = args[1]; + args[1] = tmp; + args += 2; + } + break; + + case cff_op_index: + { + FT_Int idx = (FT_Int)( args[0] >> 16 ); + + + FT_TRACE4(( " index\n" )); + + if ( idx < 0 ) + idx = 0; + else if ( idx > num_args - 2 ) + idx = num_args - 2; + args[0] = args[-( idx + 1 )]; + args++; + } + break; + + case cff_op_roll: + { + FT_Int count = (FT_Int)( args[0] >> 16 ); + FT_Int idx = (FT_Int)( args[1] >> 16 ); + + + FT_TRACE4(( " roll\n" )); + + if ( count <= 0 ) + count = 1; + + args -= count; + if ( args < stack ) + goto Stack_Underflow; + + if ( idx >= 0 ) + { + while ( idx > 0 ) + { + FT_Fixed tmp = args[count - 1]; + FT_Int i; + + + for ( i = count - 2; i >= 0; i-- ) + args[i + 1] = args[i]; + args[0] = tmp; + idx--; + } + } + else + { + while ( idx < 0 ) + { + FT_Fixed tmp = args[0]; + FT_Int i; + + + for ( i = 0; i < count - 1; i++ ) + args[i] = args[i + 1]; + args[count - 1] = tmp; + idx++; + } + } + args += count; + } + break; + + case cff_op_dup: + FT_TRACE4(( " dup\n" )); + + args[1] = args[0]; + args += 2; + break; + + case cff_op_put: + { + FT_Fixed val = args[0]; + FT_Int idx = (FT_Int)( args[1] >> 16 ); + + + FT_TRACE4(( " put\n" )); + + if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS ) + decoder->buildchar[idx] = val; + } + break; + + case cff_op_get: + { + FT_Int idx = (FT_Int)( args[0] >> 16 ); + FT_Fixed val = 0; + + + FT_TRACE4(( " get\n" )); + + if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS ) + val = decoder->buildchar[idx]; + + args[0] = val; + args++; + } + break; + + case cff_op_store: + FT_TRACE4(( " store\n")); + + goto Unimplemented; + + case cff_op_load: + FT_TRACE4(( " load\n" )); + + goto Unimplemented; + + case cff_op_dotsection: + /* this operator is deprecated and ignored by the parser */ + FT_TRACE4(( " dotsection\n" )); + break; + + case cff_op_closepath: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " closepath (invalid op)\n" )); + + args = stack; + break; + + case cff_op_hsbw: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " hsbw (invalid op)\n" )); + + decoder->glyph_width = decoder->nominal_width + ( args[1] >> 16 ); + + decoder->builder.left_bearing.x = args[0]; + decoder->builder.left_bearing.y = 0; + + x = decoder->builder.pos_x + args[0]; + y = decoder->builder.pos_y; + args = stack; + break; + + case cff_op_sbw: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " sbw (invalid op)\n" )); + + decoder->glyph_width = decoder->nominal_width + ( args[2] >> 16 ); + + decoder->builder.left_bearing.x = args[0]; + decoder->builder.left_bearing.y = args[1]; + + x = decoder->builder.pos_x + args[0]; + y = decoder->builder.pos_y + args[1]; + args = stack; + break; + + case cff_op_setcurrentpoint: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " setcurrentpoint (invalid op)\n" )); + + x = decoder->builder.pos_x + args[0]; + y = decoder->builder.pos_y + args[1]; + args = stack; + break; + + case cff_op_callothersubr: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " callothersubr (invalid op)\n" )); + + /* subsequent `pop' operands should add the arguments, */ + /* this is the implementation described for `unknown' other */ + /* subroutines in the Type1 spec. */ + /* */ + /* XXX Fix return arguments (see discussion below). */ + args -= 2 + ( args[-2] >> 16 ); + if ( args < stack ) + goto Stack_Underflow; + break; + + case cff_op_pop: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " pop (invalid op)\n" )); + + /* XXX Increasing `args' is wrong: After a certain number of */ + /* `pop's we get a stack overflow. Reason for doing it is */ + /* code like this (actually found in a CFF font): */ + /* */ + /* 17 1 3 callothersubr */ + /* pop */ + /* callsubr */ + /* */ + /* Since we handle `callothersubr' as a no-op, and */ + /* `callsubr' needs at least one argument, `pop' can't be a */ + /* no-op too as it basically should be. */ + /* */ + /* The right solution would be to provide real support for */ + /* `callothersubr' as done in `t1decode.c', however, given */ + /* the fact that CFF fonts with `pop' are invalid, it is */ + /* questionable whether it is worth the time. */ + args++; + break; + + case cff_op_and: + { + FT_Fixed cond = args[0] && args[1]; + + + FT_TRACE4(( " and\n" )); + + args[0] = cond ? 0x10000L : 0; + args++; + } + break; + + case cff_op_or: + { + FT_Fixed cond = args[0] || args[1]; + + + FT_TRACE4(( " or\n" )); + + args[0] = cond ? 0x10000L : 0; + args++; + } + break; + + case cff_op_eq: + { + FT_Fixed cond = !args[0]; + + + FT_TRACE4(( " eq\n" )); + + args[0] = cond ? 0x10000L : 0; + args++; + } + break; + + case cff_op_ifelse: + { + FT_Fixed cond = ( args[2] <= args[3] ); + + + FT_TRACE4(( " ifelse\n" )); + + if ( !cond ) + args[0] = args[1]; + args++; + } + break; + + case cff_op_callsubr: + { + FT_UInt idx = (FT_UInt)( ( args[0] >> 16 ) + + decoder->locals_bias ); + + + FT_TRACE4(( " callsubr(%d)\n", idx )); + + if ( idx >= decoder->num_locals ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invalid local subr index\n" )); + goto Syntax_Error; + } + + if ( zone - decoder->zones >= CFF_MAX_SUBRS_CALLS ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " too many nested subrs\n" )); + goto Syntax_Error; + } + + zone->cursor = ip; /* save current instruction pointer */ + + zone++; + zone->base = decoder->locals[idx]; + zone->limit = decoder->locals[idx + 1]; + zone->cursor = zone->base; + + if ( !zone->base || zone->limit == zone->base ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invoking empty subrs\n" )); + goto Syntax_Error; + } + + decoder->zone = zone; + ip = zone->base; + limit = zone->limit; + } + break; + + case cff_op_callgsubr: + { + FT_UInt idx = (FT_UInt)( ( args[0] >> 16 ) + + decoder->globals_bias ); + + + FT_TRACE4(( " callgsubr(%d)\n", idx )); + + if ( idx >= decoder->num_globals ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invalid global subr index\n" )); + goto Syntax_Error; + } + + if ( zone - decoder->zones >= CFF_MAX_SUBRS_CALLS ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " too many nested subrs\n" )); + goto Syntax_Error; + } + + zone->cursor = ip; /* save current instruction pointer */ + + zone++; + zone->base = decoder->globals[idx]; + zone->limit = decoder->globals[idx + 1]; + zone->cursor = zone->base; + + if ( !zone->base || zone->limit == zone->base ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invoking empty subrs\n" )); + goto Syntax_Error; + } + + decoder->zone = zone; + ip = zone->base; + limit = zone->limit; + } + break; + + case cff_op_return: + FT_TRACE4(( " return\n" )); + + if ( decoder->zone <= decoder->zones ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " unexpected return\n" )); + goto Syntax_Error; + } + + decoder->zone--; + zone = decoder->zone; + ip = zone->cursor; + limit = zone->limit; + break; + + default: + Unimplemented: + FT_ERROR(( "Unimplemented opcode: %d", ip[-1] )); + + if ( ip[-1] == 12 ) + FT_ERROR(( " %d", ip[0] )); + FT_ERROR(( "\n" )); + + return CFF_Err_Unimplemented_Feature; + } + + decoder->top = args; + + if ( decoder->top - stack >= CFF_MAX_OPERANDS ) + goto Stack_Overflow; + + } /* general operator processing */ + + } /* while ip < limit */ + + FT_TRACE4(( "..end..\n\n" )); + + Fail: + return error; + + Syntax_Error: + FT_TRACE4(( "cff_decoder_parse_charstrings: syntax error\n" )); + return CFF_Err_Invalid_File_Format; + + Stack_Underflow: + FT_TRACE4(( "cff_decoder_parse_charstrings: stack underflow\n" )); + return CFF_Err_Too_Few_Arguments; + + Stack_Overflow: + FT_TRACE4(( "cff_decoder_parse_charstrings: stack overflow\n" )); + return CFF_Err_Stack_Overflow; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** *********/ + /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ + /********** *********/ + /********** The following code is in charge of computing *********/ + /********** the maximum advance width of the font. It *********/ + /********** quickly processes each glyph charstring to *********/ + /********** extract the value from either a `sbw' or `seac' *********/ + /********** operator. *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#if 0 /* unused until we support pure CFF fonts */ + + + FT_LOCAL_DEF( FT_Error ) + cff_compute_max_advance( TT_Face face, + FT_Int* max_advance ) + { + FT_Error error = CFF_Err_Ok; + CFF_Decoder decoder; + FT_Int glyph_index; + CFF_Font cff = (CFF_Font)face->other; + + + *max_advance = 0; + + /* Initialize load decoder */ + cff_decoder_init( &decoder, face, 0, 0, 0, 0 ); + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + /* For each glyph, parse the glyph charstring and extract */ + /* the advance width. */ + for ( glyph_index = 0; glyph_index < face->root.num_glyphs; + glyph_index++ ) + { + FT_Byte* charstring; + FT_ULong charstring_len; + + + /* now get load the unscaled outline */ + error = cff_get_glyph_data( face, glyph_index, + &charstring, &charstring_len ); + if ( !error ) + { + error = cff_decoder_prepare( &decoder, size, glyph_index ); + if ( !error ) + error = cff_decoder_parse_charstrings( &decoder, + charstring, + charstring_len ); + + cff_free_glyph_data( face, &charstring, &charstring_len ); + } + + /* ignore the error if one has occurred -- skip to next glyph */ + error = CFF_Err_Ok; + } + + *max_advance = decoder.builder.advance.x; + + return CFF_Err_Ok; + } + + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Error ) + cff_slot_load( CFF_GlyphSlot glyph, + CFF_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + CFF_Decoder decoder; + TT_Face face = (TT_Face)glyph->root.face; + FT_Bool hinting, force_scaling; + CFF_Font cff = (CFF_Font)face->extra.data; + + FT_Matrix font_matrix; + FT_Vector font_offset; + + + force_scaling = FALSE; + + /* in a CID-keyed font, consider `glyph_index' as a CID and map */ + /* it immediately to the real glyph_index -- if it isn't a */ + /* subsetted font, glyph_indices and CIDs are identical, though */ + if ( cff->top_font.font_dict.cid_registry != 0xFFFFU && + cff->charset.cids ) + { + /* don't handle CID 0 (.notdef) which is directly mapped to GID 0 */ + if ( glyph_index != 0 ) + { + glyph_index = cff_charset_cid_to_gindex( &cff->charset, + glyph_index ); + if ( glyph_index == 0 ) + return CFF_Err_Invalid_Argument; + } + } + else if ( glyph_index >= cff->num_glyphs ) + return CFF_Err_Invalid_Argument; + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + glyph->x_scale = 0x10000L; + glyph->y_scale = 0x10000L; + if ( size ) + { + glyph->x_scale = size->root.metrics.x_scale; + glyph->y_scale = size->root.metrics.y_scale; + } + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* try to load embedded bitmap if any */ + /* */ + /* XXX: The convention should be emphasized in */ + /* the documents because it can be confusing. */ + if ( size ) + { + CFF_Face cff_face = (CFF_Face)size->root.face; + SFNT_Service sfnt = (SFNT_Service)cff_face->sfnt; + FT_Stream stream = cff_face->root.stream; + + + if ( size->strike_index != 0xFFFFFFFFUL && + sfnt->load_eblc && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + TT_SBit_MetricsRec metrics; + + + error = sfnt->load_sbit_image( face, + size->strike_index, + glyph_index, + (FT_Int)load_flags, + stream, + &glyph->root.bitmap, + &metrics ); + + if ( !error ) + { + glyph->root.outline.n_points = 0; + glyph->root.outline.n_contours = 0; + + glyph->root.metrics.width = (FT_Pos)metrics.width << 6; + glyph->root.metrics.height = (FT_Pos)metrics.height << 6; + + glyph->root.metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6; + glyph->root.metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6; + glyph->root.metrics.horiAdvance = (FT_Pos)metrics.horiAdvance << 6; + + glyph->root.metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6; + glyph->root.metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6; + glyph->root.metrics.vertAdvance = (FT_Pos)metrics.vertAdvance << 6; + + glyph->root.format = FT_GLYPH_FORMAT_BITMAP; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + glyph->root.bitmap_left = metrics.vertBearingX; + glyph->root.bitmap_top = metrics.vertBearingY; + } + else + { + glyph->root.bitmap_left = metrics.horiBearingX; + glyph->root.bitmap_top = metrics.horiBearingY; + } + return error; + } + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* return immediately if we only want the embedded bitmaps */ + if ( load_flags & FT_LOAD_SBITS_ONLY ) + return CFF_Err_Invalid_Argument; + + /* if we have a CID subfont, use its matrix (which has already */ + /* been multiplied with the root matrix) */ + + /* this scaling is only relevant if the PS hinter isn't active */ + if ( cff->num_subfonts ) + { + FT_ULong top_upm, sub_upm; + FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, + glyph_index ); + + if ( fd_index >= cff->num_subfonts ) + fd_index = (FT_Byte)( cff->num_subfonts - 1 ); + + top_upm = cff->top_font.font_dict.units_per_em; + sub_upm = cff->subfonts[fd_index]->font_dict.units_per_em; + + + font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix; + font_offset = cff->subfonts[fd_index]->font_dict.font_offset; + + if ( top_upm != sub_upm ) + { + glyph->x_scale = FT_MulDiv( glyph->x_scale, top_upm, sub_upm ); + glyph->y_scale = FT_MulDiv( glyph->y_scale, top_upm, sub_upm ); + + force_scaling = TRUE; + } + } + else + { + font_matrix = cff->top_font.font_dict.font_matrix; + font_offset = cff->top_font.font_dict.font_offset; + } + + glyph->root.outline.n_points = 0; + glyph->root.outline.n_contours = 0; + + hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && + ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); + + glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; /* by default */ + + { + FT_Byte* charstring; + FT_ULong charstring_len; + + + cff_decoder_init( &decoder, face, size, glyph, hinting, + FT_LOAD_TARGET_MODE( load_flags ) ); + + if ( load_flags & FT_LOAD_ADVANCE_ONLY ) + decoder.width_only = TRUE; + + decoder.builder.no_recurse = + (FT_Bool)( load_flags & FT_LOAD_NO_RECURSE ); + + /* now load the unscaled outline */ + error = cff_get_glyph_data( face, glyph_index, + &charstring, &charstring_len ); + if ( error ) + goto Glyph_Build_Finished; + + error = cff_decoder_prepare( &decoder, size, glyph_index ); + if ( error ) + goto Glyph_Build_Finished; + + error = cff_decoder_parse_charstrings( &decoder, + charstring, + charstring_len ); + + cff_free_glyph_data( face, &charstring, charstring_len ); + + if ( error ) + goto Glyph_Build_Finished; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* Control data and length may not be available for incremental */ + /* fonts. */ + if ( face->root.internal->incremental_interface ) + { + glyph->root.control_data = 0; + glyph->root.control_len = 0; + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + /* We set control_data and control_len if charstrings is loaded. */ + /* See how charstring loads at cff_index_access_element() in */ + /* cffload.c. */ + { + CFF_Index csindex = &cff->charstrings_index; + + + if ( csindex->offsets ) + { + glyph->root.control_data = csindex->bytes + + csindex->offsets[glyph_index] - 1; + glyph->root.control_len = charstring_len; + } + } + + Glyph_Build_Finished: + /* save new glyph tables, if no error */ + if ( !error ) + cff_builder_done( &decoder.builder ); + /* XXX: anything to do for broken glyph entry? */ + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* Incremental fonts can optionally override the metrics. */ + if ( !error && + face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + + + metrics.bearing_x = decoder.builder.left_bearing.x; + metrics.bearing_y = 0; + metrics.advance = decoder.builder.advance.x; + metrics.advance_v = decoder.builder.advance.y; + + error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( + face->root.internal->incremental_interface->object, + glyph_index, FALSE, &metrics ); + + decoder.builder.left_bearing.x = metrics.bearing_x; + decoder.builder.advance.x = metrics.advance; + decoder.builder.advance.y = metrics.advance_v; + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + if ( !error ) + { + /* Now, set the metrics -- this is rather simple, as */ + /* the left side bearing is the xMin, and the top side */ + /* bearing the yMax. */ + + /* For composite glyphs, return only left side bearing and */ + /* advance width. */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + FT_Slot_Internal internal = glyph->root.internal; + + + glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x; + glyph->root.metrics.horiAdvance = decoder.glyph_width; + internal->glyph_matrix = font_matrix; + internal->glyph_delta = font_offset; + internal->glyph_transformed = 1; + } + else + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &glyph->root.metrics; + FT_Vector advance; + FT_Bool has_vertical_info; + + + /* copy the _unscaled_ advance width */ + metrics->horiAdvance = decoder.glyph_width; + glyph->root.linearHoriAdvance = decoder.glyph_width; + glyph->root.internal->glyph_transformed = 0; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + has_vertical_info = FT_BOOL( face->vertical_info && + face->vertical.number_Of_VMetrics > 0 && + face->vertical.long_metrics ); +#else + has_vertical_info = FT_BOOL( face->vertical_info && + face->vertical.number_Of_VMetrics > 0 ); +#endif + + /* get the vertical metrics from the vtmx table if we have one */ + if ( has_vertical_info ) + { + FT_Short vertBearingY = 0; + FT_UShort vertAdvance = 0; + + + ( (SFNT_Service)face->sfnt )->get_metrics( face, 1, + glyph_index, + &vertBearingY, + &vertAdvance ); + metrics->vertBearingY = vertBearingY; + metrics->vertAdvance = vertAdvance; + } + else + { + /* make up vertical ones */ + if ( face->os2.version != 0xFFFFU ) + metrics->vertAdvance = (FT_Pos)( face->os2.sTypoAscender - + face->os2.sTypoDescender ); + else + metrics->vertAdvance = (FT_Pos)( face->horizontal.Ascender - + face->horizontal.Descender ); + } + + glyph->root.linearVertAdvance = metrics->vertAdvance; + + glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; + + glyph->root.outline.flags = 0; + if ( size && size->root.metrics.y_ppem < 24 ) + glyph->root.outline.flags |= FT_OUTLINE_HIGH_PRECISION; + + glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL; + + if ( !( font_matrix.xx == 0x10000L && + font_matrix.yy == 0x10000L && + font_matrix.xy == 0 && + font_matrix.yx == 0 ) ) + FT_Outline_Transform( &glyph->root.outline, &font_matrix ); + + if ( !( font_offset.x == 0 && + font_offset.y == 0 ) ) + FT_Outline_Translate( &glyph->root.outline, + font_offset.x, font_offset.y ); + + advance.x = metrics->horiAdvance; + advance.y = 0; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->horiAdvance = advance.x + font_offset.x; + + advance.x = 0; + advance.y = metrics->vertAdvance; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->vertAdvance = advance.y + font_offset.y; + + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || force_scaling ) + { + /* scale the outline and the metrics */ + FT_Int n; + FT_Outline* cur = &glyph->root.outline; + FT_Vector* vec = cur->points; + FT_Fixed x_scale = glyph->x_scale; + FT_Fixed y_scale = glyph->y_scale; + + + /* First of all, scale the points */ + if ( !hinting || !decoder.builder.hints_funcs ) + for ( n = cur->n_points; n > 0; n--, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* Then scale the metrics */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the other metrics */ + FT_Outline_Get_CBox( &glyph->root.outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax; + + if ( has_vertical_info ) + metrics->vertBearingX = metrics->horiBearingX - + metrics->horiAdvance / 2; + else + { + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + ft_synthesize_vertical_metrics( metrics, + metrics->vertAdvance ); + } + } + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffgload.h b/uppsrc/plugin/FT_fontsys/src/cff/cffgload.h new file mode 100644 index 000000000..f4b1d27d7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffgload.h @@ -0,0 +1,201 @@ +/***************************************************************************/ +/* */ +/* cffgload.h */ +/* */ +/* OpenType Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFGLOAD_H__ +#define __CFFGLOAD_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include "cffobjs.h" + + +FT_BEGIN_HEADER + + +#define CFF_MAX_OPERANDS 48 +#define CFF_MAX_SUBRS_CALLS 32 +#define CFF_MAX_TRANS_ELEMENTS 32 + + + /*************************************************************************/ + /* */ + /* <Structure> */ + /* CFF_Builder */ + /* */ + /* <Description> */ + /* A structure used during glyph loading to store its outline. */ + /* */ + /* <Fields> */ + /* memory :: The current memory object. */ + /* */ + /* face :: The current face object. */ + /* */ + /* glyph :: The current glyph slot. */ + /* */ + /* loader :: The current glyph loader. */ + /* */ + /* base :: The base glyph outline. */ + /* */ + /* current :: The current glyph outline. */ + /* */ + /* pos_x :: The horizontal translation (if composite glyph). */ + /* */ + /* pos_y :: The vertical translation (if composite glyph). */ + /* */ + /* left_bearing :: The left side bearing point. */ + /* */ + /* advance :: The horizontal advance vector. */ + /* */ + /* bbox :: Unused. */ + /* */ + /* path_begun :: A flag which indicates that a new path has begun. */ + /* */ + /* load_points :: If this flag is not set, no points are loaded. */ + /* */ + /* no_recurse :: Set but not used. */ + /* */ + /* metrics_only :: A boolean indicating that we only want to compute */ + /* the metrics of a given glyph, not load all of its */ + /* points. */ + /* */ + /* hints_funcs :: Auxiliary pointer for hinting. */ + /* */ + /* hints_globals :: Auxiliary pointer for hinting. */ + /* */ + typedef struct CFF_Builder_ + { + FT_Memory memory; + TT_Face face; + CFF_GlyphSlot glyph; + FT_GlyphLoader loader; + FT_Outline* base; + FT_Outline* current; + + FT_Pos pos_x; + FT_Pos pos_y; + + FT_Vector left_bearing; + FT_Vector advance; + + FT_BBox bbox; /* bounding box */ + FT_Bool path_begun; + FT_Bool load_points; + FT_Bool no_recurse; + + FT_Bool metrics_only; + + void* hints_funcs; /* hinter-specific */ + void* hints_globals; /* hinter-specific */ + + } CFF_Builder; + + + /* execution context charstring zone */ + + typedef struct CFF_Decoder_Zone_ + { + FT_Byte* base; + FT_Byte* limit; + FT_Byte* cursor; + + } CFF_Decoder_Zone; + + + typedef struct CFF_Decoder_ + { + CFF_Builder builder; + CFF_Font cff; + + FT_Fixed stack[CFF_MAX_OPERANDS + 1]; + FT_Fixed* top; + + CFF_Decoder_Zone zones[CFF_MAX_SUBRS_CALLS + 1]; + CFF_Decoder_Zone* zone; + + FT_Int flex_state; + FT_Int num_flex_vectors; + FT_Vector flex_vectors[7]; + + FT_Pos glyph_width; + FT_Pos nominal_width; + + FT_Bool read_width; + FT_Bool width_only; + FT_Int num_hints; + FT_Fixed buildchar[CFF_MAX_TRANS_ELEMENTS]; + + FT_UInt num_locals; + FT_UInt num_globals; + + FT_Int locals_bias; + FT_Int globals_bias; + + FT_Byte** locals; + FT_Byte** globals; + + FT_Byte** glyph_names; /* for pure CFF fonts only */ + FT_UInt num_glyphs; /* number of glyphs in font */ + + FT_Render_Mode hint_mode; + + FT_Bool seac; + + } CFF_Decoder; + + + FT_LOCAL( void ) + cff_decoder_init( CFF_Decoder* decoder, + TT_Face face, + CFF_Size size, + CFF_GlyphSlot slot, + FT_Bool hinting, + FT_Render_Mode hint_mode ); + + FT_LOCAL( FT_Error ) + cff_decoder_prepare( CFF_Decoder* decoder, + CFF_Size size, + FT_UInt glyph_index ); + +#if 0 /* unused until we support pure CFF fonts */ + + /* Compute the maximum advance width of a font through quick parsing */ + FT_LOCAL( FT_Error ) + cff_compute_max_advance( TT_Face face, + FT_Int* max_advance ); + +#endif /* 0 */ + + FT_LOCAL( FT_Error ) + cff_decoder_parse_charstrings( CFF_Decoder* decoder, + FT_Byte* charstring_base, + FT_ULong charstring_len ); + + FT_LOCAL( FT_Error ) + cff_slot_load( CFF_GlyphSlot glyph, + CFF_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __CFFGLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffload.c b/uppsrc/plugin/FT_fontsys/src/cff/cffload.c new file mode 100644 index 000000000..9740a1bfc --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffload.c @@ -0,0 +1,1661 @@ +/***************************************************************************/ +/* */ +/* cffload.c */ +/* */ +/* OpenType and CFF data/program tables loader (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include FT_TYPE1_TABLES_H + +#include "cffload.h" +#include "cffparse.h" + +#include "cfferrs.h" + + +#if 1 + + static const FT_UShort cff_isoadobe_charset[229] = + { + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63, + 64, 65, 66, 67, 68, 69, 70, 71, + 72, 73, 74, 75, 76, 77, 78, 79, + 80, 81, 82, 83, 84, 85, 86, 87, + 88, 89, 90, 91, 92, 93, 94, 95, + 96, 97, 98, 99, 100, 101, 102, 103, + 104, 105, 106, 107, 108, 109, 110, 111, + 112, 113, 114, 115, 116, 117, 118, 119, + 120, 121, 122, 123, 124, 125, 126, 127, + 128, 129, 130, 131, 132, 133, 134, 135, + 136, 137, 138, 139, 140, 141, 142, 143, + 144, 145, 146, 147, 148, 149, 150, 151, + 152, 153, 154, 155, 156, 157, 158, 159, + 160, 161, 162, 163, 164, 165, 166, 167, + 168, 169, 170, 171, 172, 173, 174, 175, + 176, 177, 178, 179, 180, 181, 182, 183, + 184, 185, 186, 187, 188, 189, 190, 191, + 192, 193, 194, 195, 196, 197, 198, 199, + 200, 201, 202, 203, 204, 205, 206, 207, + 208, 209, 210, 211, 212, 213, 214, 215, + 216, 217, 218, 219, 220, 221, 222, 223, + 224, 225, 226, 227, 228 + }; + + static const FT_UShort cff_expert_charset[166] = + { + 0, 1, 229, 230, 231, 232, 233, 234, + 235, 236, 237, 238, 13, 14, 15, 99, + 239, 240, 241, 242, 243, 244, 245, 246, + 247, 248, 27, 28, 249, 250, 251, 252, + 253, 254, 255, 256, 257, 258, 259, 260, + 261, 262, 263, 264, 265, 266, 109, 110, + 267, 268, 269, 270, 271, 272, 273, 274, + 275, 276, 277, 278, 279, 280, 281, 282, + 283, 284, 285, 286, 287, 288, 289, 290, + 291, 292, 293, 294, 295, 296, 297, 298, + 299, 300, 301, 302, 303, 304, 305, 306, + 307, 308, 309, 310, 311, 312, 313, 314, + 315, 316, 317, 318, 158, 155, 163, 319, + 320, 321, 322, 323, 324, 325, 326, 150, + 164, 169, 327, 328, 329, 330, 331, 332, + 333, 334, 335, 336, 337, 338, 339, 340, + 341, 342, 343, 344, 345, 346, 347, 348, + 349, 350, 351, 352, 353, 354, 355, 356, + 357, 358, 359, 360, 361, 362, 363, 364, + 365, 366, 367, 368, 369, 370, 371, 372, + 373, 374, 375, 376, 377, 378 + }; + + static const FT_UShort cff_expertsubset_charset[87] = + { + 0, 1, 231, 232, 235, 236, 237, 238, + 13, 14, 15, 99, 239, 240, 241, 242, + 243, 244, 245, 246, 247, 248, 27, 28, + 249, 250, 251, 253, 254, 255, 256, 257, + 258, 259, 260, 261, 262, 263, 264, 265, + 266, 109, 110, 267, 268, 269, 270, 272, + 300, 301, 302, 305, 314, 315, 158, 155, + 163, 320, 321, 322, 323, 324, 325, 326, + 150, 164, 169, 327, 328, 329, 330, 331, + 332, 333, 334, 335, 336, 337, 338, 339, + 340, 341, 342, 343, 344, 345, 346 + }; + + static const FT_UShort cff_standard_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56, + 57, 58, 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70, 71, 72, + 73, 74, 75, 76, 77, 78, 79, 80, + 81, 82, 83, 84, 85, 86, 87, 88, + 89, 90, 91, 92, 93, 94, 95, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 96, 97, 98, 99, 100, 101, 102, + 103, 104, 105, 106, 107, 108, 109, 110, + 0, 111, 112, 113, 114, 0, 115, 116, + 117, 118, 119, 120, 121, 122, 0, 123, + 0, 124, 125, 126, 127, 128, 129, 130, + 131, 0, 132, 133, 0, 134, 135, 136, + 137, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 138, 0, 139, 0, 0, 0, 0, + 140, 141, 142, 143, 0, 0, 0, 0, + 0, 144, 0, 0, 0, 145, 0, 0, + 146, 147, 148, 149, 0, 0, 0, 0 + }; + + static const FT_UShort cff_expert_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 229, 230, 0, 231, 232, 233, 234, + 235, 236, 237, 238, 13, 14, 15, 99, + 239, 240, 241, 242, 243, 244, 245, 246, + 247, 248, 27, 28, 249, 250, 251, 252, + 0, 253, 254, 255, 256, 257, 0, 0, + 0, 258, 0, 0, 259, 260, 261, 262, + 0, 0, 263, 264, 265, 0, 266, 109, + 110, 267, 268, 269, 0, 270, 271, 272, + 273, 274, 275, 276, 277, 278, 279, 280, + 281, 282, 283, 284, 285, 286, 287, 288, + 289, 290, 291, 292, 293, 294, 295, 296, + 297, 298, 299, 300, 301, 302, 303, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 304, 305, 306, 0, 0, 307, 308, + 309, 310, 311, 0, 312, 0, 0, 312, + 0, 0, 314, 315, 0, 0, 316, 317, + 318, 0, 0, 0, 158, 155, 163, 319, + 320, 321, 322, 323, 324, 325, 0, 0, + 326, 150, 164, 169, 327, 328, 329, 330, + 331, 332, 333, 334, 335, 336, 337, 338, + 339, 340, 341, 342, 343, 344, 345, 346, + 347, 348, 349, 350, 351, 352, 353, 354, + 355, 356, 357, 358, 359, 360, 361, 362, + 363, 364, 365, 366, 367, 368, 369, 370, + 371, 372, 373, 374, 375, 376, 377, 378 + }; + +#endif /* 1 */ + + + FT_LOCAL_DEF( FT_UShort ) + cff_get_standard_encoding( FT_UInt charcode ) + { + return (FT_UShort)( charcode < 256 ? cff_standard_encoding[charcode] + : 0 ); + } + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffload + + + /* read an offset from the index's stream current position */ + static FT_ULong + cff_index_read_offset( CFF_Index idx, + FT_Error *errorp ) + { + FT_Error error; + FT_Stream stream = idx->stream; + FT_Byte tmp[4]; + FT_ULong result = 0; + + + if ( !FT_STREAM_READ( tmp, idx->off_size ) ) + { + FT_Int nn; + + + for ( nn = 0; nn < idx->off_size; nn++ ) + result = ( result << 8 ) | tmp[nn]; + } + + *errorp = error; + return result; + } + + + static FT_Error + cff_index_init( CFF_Index idx, + FT_Stream stream, + FT_Bool load ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_UShort count; + + + FT_MEM_ZERO( idx, sizeof ( *idx ) ); + + idx->stream = stream; + idx->start = FT_STREAM_POS(); + if ( !FT_READ_USHORT( count ) && + count > 0 ) + { + FT_Byte offsize; + FT_ULong size; + + + /* there is at least one element; read the offset size, */ + /* then access the offset table to compute the index's total size */ + if ( FT_READ_BYTE( offsize ) ) + goto Exit; + + if ( offsize < 1 || offsize > 4 ) + { + error = CFF_Err_Invalid_Table; + goto Exit; + } + + idx->count = count; + idx->off_size = offsize; + size = (FT_ULong)( count + 1 ) * offsize; + + idx->data_offset = idx->start + 3 + size; + + if ( FT_STREAM_SKIP( size - offsize ) ) + goto Exit; + + size = cff_index_read_offset( idx, &error ); + if ( error ) + goto Exit; + + if ( size == 0 ) + { + error = CFF_Err_Invalid_Table; + goto Exit; + } + + idx->data_size = --size; + + if ( load ) + { + /* load the data */ + if ( FT_FRAME_EXTRACT( size, idx->bytes ) ) + goto Exit; + } + else + { + /* skip the data */ + if ( FT_STREAM_SKIP( size ) ) + goto Exit; + } + } + + Exit: + if ( error ) + FT_FREE( idx->offsets ); + + return error; + } + + + static void + cff_index_done( CFF_Index idx ) + { + if ( idx->stream ) + { + FT_Stream stream = idx->stream; + FT_Memory memory = stream->memory; + + + if ( idx->bytes ) + FT_FRAME_RELEASE( idx->bytes ); + + FT_FREE( idx->offsets ); + FT_MEM_ZERO( idx, sizeof ( *idx ) ); + } + } + + + static FT_Error + cff_index_load_offsets( CFF_Index idx ) + { + FT_Error error = CFF_Err_Ok; + FT_Stream stream = idx->stream; + FT_Memory memory = stream->memory; + + + if ( idx->count > 0 && idx->offsets == NULL ) + { + FT_Byte offsize = idx->off_size; + FT_ULong data_size; + FT_Byte* p; + FT_Byte* p_end; + FT_ULong* poff; + + + data_size = (FT_ULong)( idx->count + 1 ) * offsize; + + if ( FT_NEW_ARRAY( idx->offsets, idx->count + 1 ) || + FT_STREAM_SEEK( idx->start + 3 ) || + FT_FRAME_ENTER( data_size ) ) + goto Exit; + + poff = idx->offsets; + p = (FT_Byte*)stream->cursor; + p_end = p + data_size; + + switch ( offsize ) + { + case 1: + for ( ; p < p_end; p++, poff++ ) + poff[0] = p[0]; + break; + + case 2: + for ( ; p < p_end; p += 2, poff++ ) + poff[0] = FT_PEEK_USHORT( p ); + break; + + case 3: + for ( ; p < p_end; p += 3, poff++ ) + poff[0] = FT_PEEK_OFF3( p ); + break; + + default: + for ( ; p < p_end; p += 4, poff++ ) + poff[0] = FT_PEEK_ULONG( p ); + } + + FT_FRAME_EXIT(); + } + + Exit: + if ( error ) + FT_FREE( idx->offsets ); + + return error; + } + + + /* Allocate a table containing pointers to an index's elements. */ + /* The `pool' argument makes this function convert the index */ + /* entries to C-style strings (this is, NULL-terminated). */ + static FT_Error + cff_index_get_pointers( CFF_Index idx, + FT_Byte*** table, + FT_Byte** pool ) + { + FT_Error error = CFF_Err_Ok; + FT_Memory memory = idx->stream->memory; + FT_Byte** t = NULL; + FT_Byte* new_bytes = NULL; + + + *table = NULL; + + if ( idx->offsets == NULL ) + { + error = cff_index_load_offsets( idx ); + if ( error ) + goto Exit; + } + + if ( idx->count > 0 && + !FT_NEW_ARRAY( t, idx->count + 1 ) && + ( !pool || !FT_ALLOC( new_bytes, + idx->data_size + idx->count ) ) ) + { + FT_ULong n, cur_offset; + FT_ULong extra = 0; + FT_Byte* org_bytes = idx->bytes; + + + /* at this point, `idx->offsets' can't be NULL */ + cur_offset = idx->offsets[0] - 1; + + /* sanity check */ + if ( cur_offset >= idx->data_size ) + { + FT_TRACE0(( "cff_index_get_pointers:" + " invalid first offset value %d set to zero\n", + cur_offset )); + cur_offset = 0; + } + + if ( !pool ) + t[0] = org_bytes + cur_offset; + else + t[0] = new_bytes + cur_offset; + + for ( n = 1; n <= idx->count; n++ ) + { + FT_ULong next_offset = idx->offsets[n] - 1; + + + /* empty slot + two sanity checks for invalid offset tables */ + if ( next_offset == 0 || + next_offset < cur_offset || + ( next_offset >= idx->data_size && n < idx->count ) ) + next_offset = cur_offset; + + if ( !pool ) + t[n] = org_bytes + next_offset; + else + { + t[n] = new_bytes + next_offset + extra; + + if ( next_offset != cur_offset ) + { + FT_MEM_COPY( t[n - 1], org_bytes + cur_offset, t[n] - t[n - 1] ); + t[n][0] = '\0'; + t[n] += 1; + extra++; + } + } + + cur_offset = next_offset; + } + *table = t; + + if ( pool ) + *pool = new_bytes; + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + cff_index_access_element( CFF_Index idx, + FT_UInt element, + FT_Byte** pbytes, + FT_ULong* pbyte_len ) + { + FT_Error error = CFF_Err_Ok; + + + if ( idx && idx->count > element ) + { + /* compute start and end offsets */ + FT_Stream stream = idx->stream; + FT_ULong off1, off2 = 0; + + + /* load offsets from file or the offset table */ + if ( !idx->offsets ) + { + FT_ULong pos = element * idx->off_size; + + + if ( FT_STREAM_SEEK( idx->start + 3 + pos ) ) + goto Exit; + + off1 = cff_index_read_offset( idx, &error ); + if ( error ) + goto Exit; + + if ( off1 != 0 ) + { + do + { + element++; + off2 = cff_index_read_offset( idx, &error ); + } + while ( off2 == 0 && element < idx->count ); + } + } + else /* use offsets table */ + { + off1 = idx->offsets[element]; + if ( off1 ) + { + do + { + element++; + off2 = idx->offsets[element]; + + } while ( off2 == 0 && element < idx->count ); + } + } + + /* XXX: should check off2 does not exceed the end of this entry; */ + /* at present, only truncate off2 at the end of this stream */ + if ( off2 > stream->size + 1 || + idx->data_offset > stream->size - off2 + 1 ) + { + FT_ERROR(( "cff_index_access_element:" + " offset to next entry (%d)" + " exceeds the end of stream (%d)\n", + off2, stream->size - idx->data_offset + 1 )); + off2 = stream->size - idx->data_offset + 1; + } + + /* access element */ + if ( off1 && off2 > off1 ) + { + *pbyte_len = off2 - off1; + + if ( idx->bytes ) + { + /* this index was completely loaded in memory, that's easy */ + *pbytes = idx->bytes + off1 - 1; + } + else + { + /* this index is still on disk/file, access it through a frame */ + if ( FT_STREAM_SEEK( idx->data_offset + off1 - 1 ) || + FT_FRAME_EXTRACT( off2 - off1, *pbytes ) ) + goto Exit; + } + } + else + { + /* empty index element */ + *pbytes = 0; + *pbyte_len = 0; + } + } + else + error = CFF_Err_Invalid_Argument; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + cff_index_forget_element( CFF_Index idx, + FT_Byte** pbytes ) + { + if ( idx->bytes == 0 ) + { + FT_Stream stream = idx->stream; + + + FT_FRAME_RELEASE( *pbytes ); + } + } + + + /* get an entry from Name INDEX */ + FT_LOCAL_DEF( FT_String* ) + cff_index_get_name( CFF_Font font, + FT_UInt element ) + { + CFF_Index idx = &font->name_index; + FT_Memory memory = idx->stream->memory; + FT_Byte* bytes; + FT_ULong byte_len; + FT_Error error; + FT_String* name = 0; + + + error = cff_index_access_element( idx, element, &bytes, &byte_len ); + if ( error ) + goto Exit; + + if ( !FT_ALLOC( name, byte_len + 1 ) ) + { + FT_MEM_COPY( name, bytes, byte_len ); + name[byte_len] = 0; + } + cff_index_forget_element( idx, &bytes ); + + Exit: + return name; + } + + + /* get an entry from String INDEX */ + FT_LOCAL_DEF( FT_String* ) + cff_index_get_string( CFF_Font font, + FT_UInt element ) + { + return ( element < font->num_strings ) + ? (FT_String*)font->strings[element] + : NULL; + } + + + FT_LOCAL_DEF( FT_String* ) + cff_index_get_sid_string( CFF_Font font, + FT_UInt sid ) + { + /* value 0xFFFFU indicates a missing dictionary entry */ + if ( sid == 0xFFFFU ) + return NULL; + + /* if it is not a standard string, return it */ + if ( sid > 390 ) + return cff_index_get_string( font, sid - 391 ); + + /* CID-keyed CFF fonts don't have glyph names */ + if ( !font->psnames ) + return NULL; + + /* this is a standard string */ + return (FT_String *)font->psnames->adobe_std_strings( sid ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** FD Select table support ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + + + static void + CFF_Done_FD_Select( CFF_FDSelect fdselect, + FT_Stream stream ) + { + if ( fdselect->data ) + FT_FRAME_RELEASE( fdselect->data ); + + fdselect->data_size = 0; + fdselect->format = 0; + fdselect->range_count = 0; + } + + + static FT_Error + CFF_Load_FD_Select( CFF_FDSelect fdselect, + FT_UInt num_glyphs, + FT_Stream stream, + FT_ULong offset ) + { + FT_Error error; + FT_Byte format; + FT_UInt num_ranges; + + + /* read format */ + if ( FT_STREAM_SEEK( offset ) || FT_READ_BYTE( format ) ) + goto Exit; + + fdselect->format = format; + fdselect->cache_count = 0; /* clear cache */ + + switch ( format ) + { + case 0: /* format 0, that's simple */ + fdselect->data_size = num_glyphs; + goto Load_Data; + + case 3: /* format 3, a tad more complex */ + if ( FT_READ_USHORT( num_ranges ) ) + goto Exit; + + fdselect->data_size = num_ranges * 3 + 2; + + Load_Data: + if ( FT_FRAME_EXTRACT( fdselect->data_size, fdselect->data ) ) + goto Exit; + break; + + default: /* hmm... that's wrong */ + error = CFF_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Byte ) + cff_fd_select_get( CFF_FDSelect fdselect, + FT_UInt glyph_index ) + { + FT_Byte fd = 0; + + + switch ( fdselect->format ) + { + case 0: + fd = fdselect->data[glyph_index]; + break; + + case 3: + /* first, compare to cache */ + if ( (FT_UInt)( glyph_index - fdselect->cache_first ) < + fdselect->cache_count ) + { + fd = fdselect->cache_fd; + break; + } + + /* then, lookup the ranges array */ + { + FT_Byte* p = fdselect->data; + FT_Byte* p_limit = p + fdselect->data_size; + FT_Byte fd2; + FT_UInt first, limit; + + + first = FT_NEXT_USHORT( p ); + do + { + if ( glyph_index < first ) + break; + + fd2 = *p++; + limit = FT_NEXT_USHORT( p ); + + if ( glyph_index < limit ) + { + fd = fd2; + + /* update cache */ + fdselect->cache_first = first; + fdselect->cache_count = limit-first; + fdselect->cache_fd = fd2; + break; + } + first = limit; + + } while ( p < p_limit ); + } + break; + + default: + ; + } + + return fd; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** CFF font support ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + cff_charset_compute_cids( CFF_Charset charset, + FT_UInt num_glyphs, + FT_Memory memory ) + { + FT_Error error = CFF_Err_Ok; + FT_UInt i; + FT_Long j; + FT_UShort max_cid = 0; + + + if ( charset->max_cid > 0 ) + goto Exit; + + for ( i = 0; i < num_glyphs; i++ ) + { + if ( charset->sids[i] > max_cid ) + max_cid = charset->sids[i]; + } + + if ( FT_NEW_ARRAY( charset->cids, (FT_ULong)max_cid + 1 ) ) + goto Exit; + + /* When multiple GIDs map to the same CID, we choose the lowest */ + /* GID. This is not described in any spec, but it matches the */ + /* behaviour of recent Acroread versions. */ + for ( j = num_glyphs - 1; j >= 0 ; j-- ) + charset->cids[charset->sids[j]] = (FT_UShort)j; + + charset->max_cid = max_cid; + charset->num_glyphs = num_glyphs; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_UInt ) + cff_charset_cid_to_gindex( CFF_Charset charset, + FT_UInt cid ) + { + FT_UInt result = 0; + + + if ( cid <= charset->max_cid ) + result = charset->cids[cid]; + + return result; + } + + + static void + cff_charset_free_cids( CFF_Charset charset, + FT_Memory memory ) + { + FT_FREE( charset->cids ); + charset->max_cid = 0; + } + + + static void + cff_charset_done( CFF_Charset charset, + FT_Stream stream ) + { + FT_Memory memory = stream->memory; + + + cff_charset_free_cids( charset, memory ); + + FT_FREE( charset->sids ); + charset->format = 0; + charset->offset = 0; + } + + + static FT_Error + cff_charset_load( CFF_Charset charset, + FT_UInt num_glyphs, + FT_Stream stream, + FT_ULong base_offset, + FT_ULong offset, + FT_Bool invert ) + { + FT_Memory memory = stream->memory; + FT_Error error = CFF_Err_Ok; + FT_UShort glyph_sid; + + + /* If the the offset is greater than 2, we have to parse the */ + /* charset table. */ + if ( offset > 2 ) + { + FT_UInt j; + + + charset->offset = base_offset + offset; + + /* Get the format of the table. */ + if ( FT_STREAM_SEEK( charset->offset ) || + FT_READ_BYTE( charset->format ) ) + goto Exit; + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* assign the .notdef glyph */ + charset->sids[0] = 0; + + switch ( charset->format ) + { + case 0: + if ( num_glyphs > 0 ) + { + if ( FT_FRAME_ENTER( ( num_glyphs - 1 ) * 2 ) ) + goto Exit; + + for ( j = 1; j < num_glyphs; j++ ) + charset->sids[j] = FT_GET_USHORT(); + + FT_FRAME_EXIT(); + } + break; + + case 1: + case 2: + { + FT_UInt nleft; + FT_UInt i; + + + j = 1; + + while ( j < num_glyphs ) + { + /* Read the first glyph sid of the range. */ + if ( FT_READ_USHORT( glyph_sid ) ) + goto Exit; + + /* Read the number of glyphs in the range. */ + if ( charset->format == 2 ) + { + if ( FT_READ_USHORT( nleft ) ) + goto Exit; + } + else + { + if ( FT_READ_BYTE( nleft ) ) + goto Exit; + } + + /* try to rescue some of the SIDs if `nleft' is too large */ + if ( glyph_sid > 0xFFFFL - nleft ) + { + FT_ERROR(( "cff_charset_load: invalid SID range trimmed" + " nleft=%d -> %d\n", nleft, 0xFFFFL - glyph_sid )); + nleft = ( FT_UInt )( 0xFFFFL - glyph_sid ); + } + + /* Fill in the range of sids -- `nleft + 1' glyphs. */ + for ( i = 0; j < num_glyphs && i <= nleft; i++, j++, glyph_sid++ ) + charset->sids[j] = glyph_sid; + } + } + break; + + default: + FT_ERROR(( "cff_charset_load: invalid table format\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + } + else + { + /* Parse default tables corresponding to offset == 0, 1, or 2. */ + /* CFF specification intimates the following: */ + /* */ + /* In order to use a predefined charset, the following must be */ + /* true: The charset constructed for the glyphs in the font's */ + /* charstrings dictionary must match the predefined charset in */ + /* the first num_glyphs. */ + + charset->offset = offset; /* record charset type */ + + switch ( (FT_UInt)offset ) + { + case 0: + if ( num_glyphs > 229 ) + { + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" + "predefined charset (Adobe ISO-Latin)\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* Copy the predefined charset into the allocated memory. */ + FT_ARRAY_COPY( charset->sids, cff_isoadobe_charset, num_glyphs ); + + break; + + case 1: + if ( num_glyphs > 166 ) + { + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" + "predefined charset (Adobe Expert)\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* Copy the predefined charset into the allocated memory. */ + FT_ARRAY_COPY( charset->sids, cff_expert_charset, num_glyphs ); + + break; + + case 2: + if ( num_glyphs > 87 ) + { + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" + "predefined charset (Adobe Expert Subset)\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* Copy the predefined charset into the allocated memory. */ + FT_ARRAY_COPY( charset->sids, cff_expertsubset_charset, num_glyphs ); + + break; + + default: + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + } + + /* we have to invert the `sids' array for subsetted CID-keyed fonts */ + if ( invert ) + error = cff_charset_compute_cids( charset, num_glyphs, memory ); + + Exit: + /* Clean up if there was an error. */ + if ( error ) + { + FT_FREE( charset->sids ); + FT_FREE( charset->cids ); + charset->format = 0; + charset->offset = 0; + charset->sids = 0; + } + + return error; + } + + + static void + cff_encoding_done( CFF_Encoding encoding ) + { + encoding->format = 0; + encoding->offset = 0; + encoding->count = 0; + } + + + static FT_Error + cff_encoding_load( CFF_Encoding encoding, + CFF_Charset charset, + FT_UInt num_glyphs, + FT_Stream stream, + FT_ULong base_offset, + FT_ULong offset ) + { + FT_Error error = CFF_Err_Ok; + FT_UInt count; + FT_UInt j; + FT_UShort glyph_sid; + FT_UInt glyph_code; + + + /* Check for charset->sids. If we do not have this, we fail. */ + if ( !charset->sids ) + { + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Zero out the code to gid/sid mappings. */ + for ( j = 0; j < 256; j++ ) + { + encoding->sids [j] = 0; + encoding->codes[j] = 0; + } + + /* Note: The encoding table in a CFF font is indexed by glyph index; */ + /* the first encoded glyph index is 1. Hence, we read the character */ + /* code (`glyph_code') at index j and make the assignment: */ + /* */ + /* encoding->codes[glyph_code] = j + 1 */ + /* */ + /* We also make the assignment: */ + /* */ + /* encoding->sids[glyph_code] = charset->sids[j + 1] */ + /* */ + /* This gives us both a code to GID and a code to SID mapping. */ + + if ( offset > 1 ) + { + encoding->offset = base_offset + offset; + + /* we need to parse the table to determine its size */ + if ( FT_STREAM_SEEK( encoding->offset ) || + FT_READ_BYTE( encoding->format ) || + FT_READ_BYTE( count ) ) + goto Exit; + + switch ( encoding->format & 0x7F ) + { + case 0: + { + FT_Byte* p; + + + /* By convention, GID 0 is always ".notdef" and is never */ + /* coded in the font. Hence, the number of codes found */ + /* in the table is `count+1'. */ + /* */ + encoding->count = count + 1; + + if ( FT_FRAME_ENTER( count ) ) + goto Exit; + + p = (FT_Byte*)stream->cursor; + + for ( j = 1; j <= count; j++ ) + { + glyph_code = *p++; + + /* Make sure j is not too big. */ + if ( j < num_glyphs ) + { + /* Assign code to GID mapping. */ + encoding->codes[glyph_code] = (FT_UShort)j; + + /* Assign code to SID mapping. */ + encoding->sids[glyph_code] = charset->sids[j]; + } + } + + FT_FRAME_EXIT(); + } + break; + + case 1: + { + FT_UInt nleft; + FT_UInt i = 1; + FT_UInt k; + + + encoding->count = 0; + + /* Parse the Format1 ranges. */ + for ( j = 0; j < count; j++, i += nleft ) + { + /* Read the first glyph code of the range. */ + if ( FT_READ_BYTE( glyph_code ) ) + goto Exit; + + /* Read the number of codes in the range. */ + if ( FT_READ_BYTE( nleft ) ) + goto Exit; + + /* Increment nleft, so we read `nleft + 1' codes/sids. */ + nleft++; + + /* compute max number of character codes */ + if ( (FT_UInt)nleft > encoding->count ) + encoding->count = nleft; + + /* Fill in the range of codes/sids. */ + for ( k = i; k < nleft + i; k++, glyph_code++ ) + { + /* Make sure k is not too big. */ + if ( k < num_glyphs && glyph_code < 256 ) + { + /* Assign code to GID mapping. */ + encoding->codes[glyph_code] = (FT_UShort)k; + + /* Assign code to SID mapping. */ + encoding->sids[glyph_code] = charset->sids[k]; + } + } + } + + /* simple check; one never knows what can be found in a font */ + if ( encoding->count > 256 ) + encoding->count = 256; + } + break; + + default: + FT_ERROR(( "cff_encoding_load: invalid table format\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Parse supplemental encodings, if any. */ + if ( encoding->format & 0x80 ) + { + FT_UInt gindex; + + + /* count supplements */ + if ( FT_READ_BYTE( count ) ) + goto Exit; + + for ( j = 0; j < count; j++ ) + { + /* Read supplemental glyph code. */ + if ( FT_READ_BYTE( glyph_code ) ) + goto Exit; + + /* Read the SID associated with this glyph code. */ + if ( FT_READ_USHORT( glyph_sid ) ) + goto Exit; + + /* Assign code to SID mapping. */ + encoding->sids[glyph_code] = glyph_sid; + + /* First, look up GID which has been assigned to */ + /* SID glyph_sid. */ + for ( gindex = 0; gindex < num_glyphs; gindex++ ) + { + if ( charset->sids[gindex] == glyph_sid ) + { + encoding->codes[glyph_code] = (FT_UShort)gindex; + break; + } + } + } + } + } + else + { + /* We take into account the fact a CFF font can use a predefined */ + /* encoding without containing all of the glyphs encoded by this */ + /* encoding (see the note at the end of section 12 in the CFF */ + /* specification). */ + + switch ( (FT_UInt)offset ) + { + case 0: + /* First, copy the code to SID mapping. */ + FT_ARRAY_COPY( encoding->sids, cff_standard_encoding, 256 ); + goto Populate; + + case 1: + /* First, copy the code to SID mapping. */ + FT_ARRAY_COPY( encoding->sids, cff_expert_encoding, 256 ); + + Populate: + /* Construct code to GID mapping from code to SID mapping */ + /* and charset. */ + + encoding->count = 0; + + error = cff_charset_compute_cids( charset, num_glyphs, + stream->memory ); + if ( error ) + goto Exit; + + for ( j = 0; j < 256; j++ ) + { + FT_UInt sid = encoding->sids[j]; + FT_UInt gid = 0; + + + if ( sid ) + gid = cff_charset_cid_to_gindex( charset, sid ); + + if ( gid != 0 ) + { + encoding->codes[j] = (FT_UShort)gid; + encoding->count = j + 1; + } + else + { + encoding->codes[j] = 0; + encoding->sids [j] = 0; + } + } + break; + + default: + FT_ERROR(( "cff_encoding_load: invalid table format\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + } + + Exit: + + /* Clean up if there was an error. */ + return error; + } + + + static FT_Error + cff_subfont_load( CFF_SubFont font, + CFF_Index idx, + FT_UInt font_index, + FT_Stream stream, + FT_ULong base_offset, + FT_Library library ) + { + FT_Error error; + CFF_ParserRec parser; + FT_Byte* dict = NULL; + FT_ULong dict_len; + CFF_FontRecDict top = &font->font_dict; + CFF_Private priv = &font->private_dict; + + + cff_parser_init( &parser, CFF_CODE_TOPDICT, &font->font_dict, library ); + + /* set defaults */ + FT_MEM_ZERO( top, sizeof ( *top ) ); + + top->underline_position = -100L << 16; + top->underline_thickness = 50L << 16; + top->charstring_type = 2; + top->font_matrix.xx = 0x10000L; + top->font_matrix.yy = 0x10000L; + top->cid_count = 8720; + + /* we use the implementation specific SID value 0xFFFF to indicate */ + /* missing entries */ + top->version = 0xFFFFU; + top->notice = 0xFFFFU; + top->copyright = 0xFFFFU; + top->full_name = 0xFFFFU; + top->family_name = 0xFFFFU; + top->weight = 0xFFFFU; + top->embedded_postscript = 0xFFFFU; + + top->cid_registry = 0xFFFFU; + top->cid_ordering = 0xFFFFU; + top->cid_font_name = 0xFFFFU; + + error = cff_index_access_element( idx, font_index, &dict, &dict_len ); + if ( !error ) + error = cff_parser_run( &parser, dict, dict + dict_len ); + + cff_index_forget_element( idx, &dict ); + + if ( error ) + goto Exit; + + /* if it is a CID font, we stop there */ + if ( top->cid_registry != 0xFFFFU ) + goto Exit; + + /* parse the private dictionary, if any */ + if ( top->private_offset && top->private_size ) + { + /* set defaults */ + FT_MEM_ZERO( priv, sizeof ( *priv ) ); + + priv->blue_shift = 7; + priv->blue_fuzz = 1; + priv->lenIV = -1; + priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); + priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); + + cff_parser_init( &parser, CFF_CODE_PRIVATE, priv, library ); + + if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) || + FT_FRAME_ENTER( font->font_dict.private_size ) ) + goto Exit; + + error = cff_parser_run( &parser, + (FT_Byte*)stream->cursor, + (FT_Byte*)stream->limit ); + FT_FRAME_EXIT(); + if ( error ) + goto Exit; + + /* ensure that `num_blue_values' is even */ + priv->num_blue_values &= ~1; + } + + /* read the local subrs, if any */ + if ( priv->local_subrs_offset ) + { + if ( FT_STREAM_SEEK( base_offset + top->private_offset + + priv->local_subrs_offset ) ) + goto Exit; + + error = cff_index_init( &font->local_subrs_index, stream, 1 ); + if ( error ) + goto Exit; + + error = cff_index_get_pointers( &font->local_subrs_index, + &font->local_subrs, NULL ); + if ( error ) + goto Exit; + } + + Exit: + return error; + } + + + static void + cff_subfont_done( FT_Memory memory, + CFF_SubFont subfont ) + { + if ( subfont ) + { + cff_index_done( &subfont->local_subrs_index ); + FT_FREE( subfont->local_subrs ); + } + } + + + FT_LOCAL_DEF( FT_Error ) + cff_font_load( FT_Library library, + FT_Stream stream, + FT_Int face_index, + CFF_Font font, + FT_Bool pure_cff ) + { + static const FT_Frame_Field cff_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_FontRec + + FT_FRAME_START( 4 ), + FT_FRAME_BYTE( version_major ), + FT_FRAME_BYTE( version_minor ), + FT_FRAME_BYTE( header_size ), + FT_FRAME_BYTE( absolute_offsize ), + FT_FRAME_END + }; + + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong base_offset; + CFF_FontRecDict dict; + CFF_IndexRec string_index; + + + FT_ZERO( font ); + FT_ZERO( &string_index ); + + font->stream = stream; + font->memory = memory; + dict = &font->top_font.font_dict; + base_offset = FT_STREAM_POS(); + + /* read CFF font header */ + if ( FT_STREAM_READ_FIELDS( cff_header_fields, font ) ) + goto Exit; + + /* check format */ + if ( font->version_major != 1 || + font->header_size < 4 || + font->absolute_offsize > 4 ) + { + FT_TRACE2(( "[not a CFF font header]\n" )); + error = CFF_Err_Unknown_File_Format; + goto Exit; + } + + /* skip the rest of the header */ + if ( FT_STREAM_SKIP( font->header_size - 4 ) ) + goto Exit; + + /* read the name, top dict, string and global subrs index */ + if ( FT_SET_ERROR( cff_index_init( &font->name_index, + stream, 0 ) ) || + FT_SET_ERROR( cff_index_init( &font->font_dict_index, + stream, 0 ) ) || + FT_SET_ERROR( cff_index_init( &string_index, + stream, 1 ) ) || + FT_SET_ERROR( cff_index_init( &font->global_subrs_index, + stream, 1 ) ) || + FT_SET_ERROR( cff_index_get_pointers( &string_index, + &font->strings, + &font->string_pool ) ) ) + goto Exit; + + font->num_strings = string_index.count; + + /* well, we don't really forget the `disabled' fonts... */ + font->num_faces = font->name_index.count; + if ( face_index >= (FT_Int)font->num_faces ) + { + FT_ERROR(( "cff_font_load: incorrect face index = %d\n", + face_index )); + error = CFF_Err_Invalid_Argument; + } + + /* in case of a font format check, simply exit now */ + if ( face_index < 0 ) + goto Exit; + + /* now, parse the top-level font dictionary */ + error = cff_subfont_load( &font->top_font, + &font->font_dict_index, + face_index, + stream, + base_offset, + library ); + if ( error ) + goto Exit; + + if ( FT_STREAM_SEEK( base_offset + dict->charstrings_offset ) ) + goto Exit; + + error = cff_index_init( &font->charstrings_index, stream, 0 ); + if ( error ) + goto Exit; + + /* now, check for a CID font */ + if ( dict->cid_registry != 0xFFFFU ) + { + CFF_IndexRec fd_index; + CFF_SubFont sub = NULL; + FT_UInt idx; + + + /* this is a CID-keyed font, we must now allocate a table of */ + /* sub-fonts, then load each of them separately */ + if ( FT_STREAM_SEEK( base_offset + dict->cid_fd_array_offset ) ) + goto Exit; + + error = cff_index_init( &fd_index, stream, 0 ); + if ( error ) + goto Exit; + + if ( fd_index.count > CFF_MAX_CID_FONTS ) + { + FT_TRACE0(( "cff_font_load: FD array too large in CID font\n" )); + goto Fail_CID; + } + + /* allocate & read each font dict independently */ + font->num_subfonts = fd_index.count; + if ( FT_NEW_ARRAY( sub, fd_index.count ) ) + goto Fail_CID; + + /* set up pointer table */ + for ( idx = 0; idx < fd_index.count; idx++ ) + font->subfonts[idx] = sub + idx; + + /* now load each subfont independently */ + for ( idx = 0; idx < fd_index.count; idx++ ) + { + sub = font->subfonts[idx]; + error = cff_subfont_load( sub, &fd_index, idx, + stream, base_offset, library ); + if ( error ) + goto Fail_CID; + } + + /* now load the FD Select array */ + error = CFF_Load_FD_Select( &font->fd_select, + font->charstrings_index.count, + stream, + base_offset + dict->cid_fd_select_offset ); + + Fail_CID: + cff_index_done( &fd_index ); + + if ( error ) + goto Exit; + } + else + font->num_subfonts = 0; + + /* read the charstrings index now */ + if ( dict->charstrings_offset == 0 ) + { + FT_ERROR(( "cff_font_load: no charstrings offset\n" )); + error = CFF_Err_Unknown_File_Format; + goto Exit; + } + + font->num_glyphs = font->charstrings_index.count; + + error = cff_index_get_pointers( &font->global_subrs_index, + &font->global_subrs, NULL ); + + if ( error ) + goto Exit; + + /* read the Charset and Encoding tables if available */ + if ( font->num_glyphs > 0 ) + { + FT_Bool invert = FT_BOOL( dict->cid_registry != 0xFFFFU && pure_cff ); + + + error = cff_charset_load( &font->charset, font->num_glyphs, stream, + base_offset, dict->charset_offset, invert ); + if ( error ) + goto Exit; + + /* CID-keyed CFFs don't have an encoding */ + if ( dict->cid_registry == 0xFFFFU ) + { + error = cff_encoding_load( &font->encoding, + &font->charset, + font->num_glyphs, + stream, + base_offset, + dict->encoding_offset ); + if ( error ) + goto Exit; + } + } + + /* get the font name (/CIDFontName for CID-keyed fonts, */ + /* /FontName otherwise) */ + font->font_name = cff_index_get_name( font, face_index ); + + Exit: + cff_index_done( &string_index ); + + return error; + } + + + FT_LOCAL_DEF( void ) + cff_font_done( CFF_Font font ) + { + FT_Memory memory = font->memory; + FT_UInt idx; + + + cff_index_done( &font->global_subrs_index ); + cff_index_done( &font->font_dict_index ); + cff_index_done( &font->name_index ); + cff_index_done( &font->charstrings_index ); + + /* release font dictionaries, but only if working with */ + /* a CID keyed CFF font */ + if ( font->num_subfonts > 0 ) + { + for ( idx = 0; idx < font->num_subfonts; idx++ ) + cff_subfont_done( memory, font->subfonts[idx] ); + + /* the subfonts array has been allocated as a single block */ + FT_FREE( font->subfonts[0] ); + } + + cff_encoding_done( &font->encoding ); + cff_charset_done( &font->charset, font->stream ); + + cff_subfont_done( memory, &font->top_font ); + + CFF_Done_FD_Select( &font->fd_select, font->stream ); + + FT_FREE( font->font_info ); + + FT_FREE( font->font_name ); + FT_FREE( font->global_subrs ); + FT_FREE( font->strings ); + FT_FREE( font->string_pool ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffload.h b/uppsrc/plugin/FT_fontsys/src/cff/cffload.h new file mode 100644 index 000000000..4eab91770 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffload.h @@ -0,0 +1,83 @@ +/***************************************************************************/ +/* */ +/* cffload.h */ +/* */ +/* OpenType & CFF data/program tables loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFLOAD_H__ +#define __CFFLOAD_H__ + + +#include <freetype/ft2build.h> +#include "cfftypes.h" + + +FT_BEGIN_HEADER + + FT_LOCAL( FT_UShort ) + cff_get_standard_encoding( FT_UInt charcode ); + + + FT_LOCAL( FT_String* ) + cff_index_get_string( CFF_Font font, + FT_UInt element ); + + FT_LOCAL( FT_String* ) + cff_index_get_sid_string( CFF_Font font, + FT_UInt sid ); + + + FT_LOCAL( FT_Error ) + cff_index_access_element( CFF_Index idx, + FT_UInt element, + FT_Byte** pbytes, + FT_ULong* pbyte_len ); + + FT_LOCAL( void ) + cff_index_forget_element( CFF_Index idx, + FT_Byte** pbytes ); + + FT_LOCAL( FT_String* ) + cff_index_get_name( CFF_Font font, + FT_UInt element ); + + + FT_LOCAL( FT_UInt ) + cff_charset_cid_to_gindex( CFF_Charset charset, + FT_UInt cid ); + + + FT_LOCAL( FT_Error ) + cff_font_load( FT_Library library, + FT_Stream stream, + FT_Int face_index, + CFF_Font font, + FT_Bool pure_cff ); + + FT_LOCAL( void ) + cff_font_done( CFF_Font font ); + + + FT_LOCAL( FT_Byte ) + cff_fd_select_get( CFF_FDSelect fdselect, + FT_UInt glyph_index ); + + +FT_END_HEADER + +#endif /* __CFFLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffobjs.c b/uppsrc/plugin/FT_fontsys/src/cff/cffobjs.c new file mode 100644 index 000000000..f4e366dbb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffobjs.c @@ -0,0 +1,1056 @@ +/***************************************************************************/ +/* */ +/* cffobjs.c */ +/* */ +/* OpenType objects manager (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_STREAM_H +#include FT_ERRORS_H +#include FT_TRUETYPE_IDS_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_SFNT_H +#include "cffobjs.h" +#include "cffload.h" +#include "cffcmap.h" +#include "cfferrs.h" +#include "cffpic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffobjs + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /* Note that we store the global hints in the size's `internal' root */ + /* field. */ + /* */ + /*************************************************************************/ + + + static PSH_Globals_Funcs + cff_size_get_globals_funcs( CFF_Size size ) + { + CFF_Face face = (CFF_Face)size->root.face; + CFF_Font font = (CFF_Font)face->extra.data; + PSHinter_Service pshinter = font->pshinter; + FT_Module module; + + + module = FT_Get_Module( size->root.face->driver->root.library, + "pshinter" ); + return ( module && pshinter && pshinter->get_globals_funcs ) + ? pshinter->get_globals_funcs( module ) + : 0; + } + + + FT_LOCAL_DEF( void ) + cff_size_done( FT_Size cffsize ) /* CFF_Size */ + { + CFF_Size size = (CFF_Size)cffsize; + CFF_Face face = (CFF_Face)size->root.face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = (CFF_Internal)cffsize->internal; + + + if ( internal ) + { + PSH_Globals_Funcs funcs; + + + funcs = cff_size_get_globals_funcs( size ); + if ( funcs ) + { + FT_UInt i; + + + funcs->destroy( internal->topfont ); + + for ( i = font->num_subfonts; i > 0; i-- ) + funcs->destroy( internal->subfonts[i - 1] ); + } + + /* `internal' is freed by destroy_size (in ftobjs.c) */ + } + } + + + /* CFF and Type 1 private dictionaries have slightly different */ + /* structures; we need to synthesize a Type 1 dictionary on the fly */ + + static void + cff_make_private_dict( CFF_SubFont subfont, + PS_Private priv ) + { + CFF_Private cpriv = &subfont->private_dict; + FT_UInt n, count; + + + FT_MEM_ZERO( priv, sizeof ( *priv ) ); + + count = priv->num_blue_values = cpriv->num_blue_values; + for ( n = 0; n < count; n++ ) + priv->blue_values[n] = (FT_Short)cpriv->blue_values[n]; + + count = priv->num_other_blues = cpriv->num_other_blues; + for ( n = 0; n < count; n++ ) + priv->other_blues[n] = (FT_Short)cpriv->other_blues[n]; + + count = priv->num_family_blues = cpriv->num_family_blues; + for ( n = 0; n < count; n++ ) + priv->family_blues[n] = (FT_Short)cpriv->family_blues[n]; + + count = priv->num_family_other_blues = cpriv->num_family_other_blues; + for ( n = 0; n < count; n++ ) + priv->family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n]; + + priv->blue_scale = cpriv->blue_scale; + priv->blue_shift = (FT_Int)cpriv->blue_shift; + priv->blue_fuzz = (FT_Int)cpriv->blue_fuzz; + + priv->standard_width[0] = (FT_UShort)cpriv->standard_width; + priv->standard_height[0] = (FT_UShort)cpriv->standard_height; + + count = priv->num_snap_widths = cpriv->num_snap_widths; + for ( n = 0; n < count; n++ ) + priv->snap_widths[n] = (FT_Short)cpriv->snap_widths[n]; + + count = priv->num_snap_heights = cpriv->num_snap_heights; + for ( n = 0; n < count; n++ ) + priv->snap_heights[n] = (FT_Short)cpriv->snap_heights[n]; + + priv->force_bold = cpriv->force_bold; + priv->language_group = cpriv->language_group; + priv->lenIV = cpriv->lenIV; + } + + + FT_LOCAL_DEF( FT_Error ) + cff_size_init( FT_Size cffsize ) /* CFF_Size */ + { + CFF_Size size = (CFF_Size)cffsize; + FT_Error error = CFF_Err_Ok; + PSH_Globals_Funcs funcs = cff_size_get_globals_funcs( size ); + + + if ( funcs ) + { + CFF_Face face = (CFF_Face)cffsize->face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = NULL; + + PS_PrivateRec priv; + FT_Memory memory = cffsize->face->memory; + + FT_UInt i; + + + if ( FT_NEW( internal ) ) + goto Exit; + + cff_make_private_dict( &font->top_font, &priv ); + error = funcs->create( cffsize->face->memory, &priv, + &internal->topfont ); + if ( error ) + goto Exit; + + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + + + cff_make_private_dict( sub, &priv ); + error = funcs->create( cffsize->face->memory, &priv, + &internal->subfonts[i - 1] ); + if ( error ) + goto Exit; + } + + cffsize->internal = (FT_Size_Internal)(void*)internal; + } + + size->strike_index = 0xFFFFFFFFUL; + + Exit: + return error; + } + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL_DEF( FT_Error ) + cff_size_select( FT_Size size, + FT_ULong strike_index ) + { + CFF_Size cffsize = (CFF_Size)size; + PSH_Globals_Funcs funcs; + + + cffsize->strike_index = strike_index; + + FT_Select_Metrics( size->face, strike_index ); + + funcs = cff_size_get_globals_funcs( cffsize ); + + if ( funcs ) + { + CFF_Face face = (CFF_Face)size->face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = (CFF_Internal)size->internal; + + FT_ULong top_upm = font->top_font.font_dict.units_per_em; + FT_UInt i; + + + funcs->set_scale( internal->topfont, + size->metrics.x_scale, size->metrics.y_scale, + 0, 0 ); + + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + FT_ULong sub_upm = sub->font_dict.units_per_em; + FT_Pos x_scale, y_scale; + + + if ( top_upm != sub_upm ) + { + x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm ); + y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm ); + } + else + { + x_scale = size->metrics.x_scale; + y_scale = size->metrics.y_scale; + } + + funcs->set_scale( internal->subfonts[i - 1], + x_scale, y_scale, 0, 0 ); + } + } + + return CFF_Err_Ok; + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + FT_LOCAL_DEF( FT_Error ) + cff_size_request( FT_Size size, + FT_Size_Request req ) + { + CFF_Size cffsize = (CFF_Size)size; + PSH_Globals_Funcs funcs; + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + if ( FT_HAS_FIXED_SIZES( size->face ) ) + { + CFF_Face cffface = (CFF_Face)size->face; + SFNT_Service sfnt = (SFNT_Service)cffface->sfnt; + FT_ULong strike_index; + + + if ( sfnt->set_sbit_strike( cffface, req, &strike_index ) ) + cffsize->strike_index = 0xFFFFFFFFUL; + else + return cff_size_select( size, strike_index ); + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + FT_Request_Metrics( size->face, req ); + + funcs = cff_size_get_globals_funcs( cffsize ); + + if ( funcs ) + { + CFF_Face cffface = (CFF_Face)size->face; + CFF_Font font = (CFF_Font)cffface->extra.data; + CFF_Internal internal = (CFF_Internal)size->internal; + + FT_ULong top_upm = font->top_font.font_dict.units_per_em; + FT_UInt i; + + + funcs->set_scale( internal->topfont, + size->metrics.x_scale, size->metrics.y_scale, + 0, 0 ); + + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + FT_ULong sub_upm = sub->font_dict.units_per_em; + FT_Pos x_scale, y_scale; + + + if ( top_upm != sub_upm ) + { + x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm ); + y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm ); + } + else + { + x_scale = size->metrics.x_scale; + y_scale = size->metrics.y_scale; + } + + funcs->set_scale( internal->subfonts[i - 1], + x_scale, y_scale, 0, 0 ); + } + } + + return CFF_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* SLOT FUNCTIONS */ + /* */ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + cff_slot_done( FT_GlyphSlot slot ) + { + slot->internal->glyph_hints = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + cff_slot_init( FT_GlyphSlot slot ) + { + CFF_Face face = (CFF_Face)slot->face; + CFF_Font font = (CFF_Font)face->extra.data; + PSHinter_Service pshinter = font->pshinter; + + + if ( pshinter ) + { + FT_Module module; + + + module = FT_Get_Module( slot->face->driver->root.library, + "pshinter" ); + if ( module ) + { + T2_Hints_Funcs funcs; + + + funcs = pshinter->get_t2_funcs( module ); + slot->internal->glyph_hints = (void*)funcs; + } + } + + return CFF_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* FACE FUNCTIONS */ + /* */ + /*************************************************************************/ + + static FT_String* + cff_strcpy( FT_Memory memory, + const FT_String* source ) + { + FT_Error error; + FT_String* result; + + + (void)FT_STRDUP( result, source ); + + FT_UNUSED( error ); + + return result; + } + + + /* Strip all subset prefixes of the form `ABCDEF+'. Usually, there */ + /* is only one, but font names like `APCOOG+JFABTD+FuturaBQ-Bold' */ + /* have been seen in the wild. */ + + static void + remove_subset_prefix( FT_String* name ) + { + FT_Int32 idx = 0; + FT_Int32 length = strlen( name ) + 1; + FT_Bool continue_search = 1; + + + while ( continue_search ) + { + if ( length >= 7 && name[6] == '+' ) + { + for ( idx = 0; idx < 6; idx++ ) + { + /* ASCII uppercase letters */ + if ( !( 'A' <= name[idx] && name[idx] <= 'Z' ) ) + continue_search = 0; + } + + if ( continue_search ) + { + for ( idx = 7; idx < length; idx++ ) + name[idx - 7] = name[idx]; + length -= 7; + } + } + else + continue_search = 0; + } + } + + + /* Remove the style part from the family name (if present). */ + + static void + remove_style( FT_String* family_name, + const FT_String* style_name ) + { + FT_Int32 family_name_length, style_name_length; + + + family_name_length = strlen( family_name ); + style_name_length = strlen( style_name ); + + if ( family_name_length > style_name_length ) + { + FT_Int idx; + + + for ( idx = 1; idx <= style_name_length; ++idx ) + { + if ( family_name[family_name_length - idx] != + style_name[style_name_length - idx] ) + break; + } + + if ( idx > style_name_length ) + { + /* family_name ends with style_name; remove it */ + idx = family_name_length - style_name_length - 1; + + /* also remove special characters */ + /* between real family name and style */ + while ( idx > 0 && + ( family_name[idx] == '-' || + family_name[idx] == ' ' || + family_name[idx] == '_' || + family_name[idx] == '+' ) ) + --idx; + + if ( idx > 0 ) + family_name[idx + 1] = '\0'; + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + cff_face_init( FT_Stream stream, + FT_Face cffface, /* CFF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + CFF_Face face = (CFF_Face)cffface; + FT_Error error; + SFNT_Service sfnt; + FT_Service_PsCMaps psnames; + PSHinter_Service pshinter; + FT_Bool pure_cff = 1; + FT_Bool sfnt_format = 0; + FT_Library library = cffface->driver->root.library; + + + sfnt = (SFNT_Service)FT_Get_Module_Interface( + library, "sfnt" ); + if ( !sfnt ) + goto Bad_Format; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + + pshinter = (PSHinter_Service)FT_Get_Module_Interface( + library, "pshinter" ); + + /* create input stream from resource */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + /* check whether we have a valid OpenType file */ + error = sfnt->init_face( stream, face, face_index, num_params, params ); + if ( !error ) + { + if ( face->format_tag != TTAG_OTTO ) /* `OTTO'; OpenType/CFF font */ + { + FT_TRACE2(( "[not a valid OpenType/CFF font]\n" )); + goto Bad_Format; + } + + /* if we are performing a simple font format check, exit immediately */ + if ( face_index < 0 ) + return CFF_Err_Ok; + + /* UNDOCUMENTED! A CFF in an SFNT can have only a single font. */ + if ( face_index > 0 ) + { + FT_ERROR(( "cff_face_init: invalid face index\n" )); + error = CFF_Err_Invalid_Argument; + goto Exit; + } + + sfnt_format = 1; + + /* now, the font can be either an OpenType/CFF font, or an SVG CEF */ + /* font; in the latter case it doesn't have a `head' table */ + error = face->goto_table( face, TTAG_head, stream, 0 ); + if ( !error ) + { + pure_cff = 0; + + /* load font directory */ + error = sfnt->load_face( stream, face, 0, num_params, params ); + if ( error ) + goto Exit; + } + else + { + /* load the `cmap' table explicitly */ + error = sfnt->load_cmap( face, stream ); + if ( error ) + goto Exit; + + /* XXX: we don't load the GPOS table, as OpenType Layout */ + /* support will be added later to a layout library on top of */ + /* FreeType 2 */ + } + + /* now load the CFF part of the file */ + error = face->goto_table( face, TTAG_CFF, stream, 0 ); + if ( error ) + goto Exit; + } + else + { + /* rewind to start of file; we are going to load a pure-CFF font */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + error = CFF_Err_Ok; + } + + /* now load and parse the CFF table in the file */ + { + CFF_Font cff = NULL; + CFF_FontRecDict dict; + FT_Memory memory = cffface->memory; + FT_Int32 flags; + FT_UInt i; + + + if ( FT_NEW( cff ) ) + goto Exit; + + face->extra.data = cff; + error = cff_font_load( library, stream, face_index, cff, pure_cff ); + if ( error ) + goto Exit; + + cff->pshinter = pshinter; + cff->psnames = psnames; + + cffface->face_index = face_index; + + /* Complement the root flags with some interesting information. */ + /* Note that this is only necessary for pure CFF and CEF fonts; */ + /* SFNT based fonts use the `name' table instead. */ + + cffface->num_glyphs = cff->num_glyphs; + + dict = &cff->top_font.font_dict; + + /* we need the `PSNames' module for CFF and CEF formats */ + /* which aren't CID-keyed */ + if ( dict->cid_registry == 0xFFFFU && !psnames ) + { + FT_ERROR(( "cff_face_init:" + " cannot open CFF & CEF fonts\n" + " " + " without the `PSNames' module\n" )); + goto Bad_Format; + } + + if ( !dict->units_per_em ) + dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM; + + /* Normalize the font matrix so that `matrix->xx' is 1; the */ + /* scaling is done with `units_per_em' then (at this point, */ + /* it already contains the scaling factor, but without */ + /* normalization of the matrix). */ + /* */ + /* Note that the offsets must be expressed in integer font */ + /* units. */ + + { + FT_Matrix* matrix = &dict->font_matrix; + FT_Vector* offset = &dict->font_offset; + FT_ULong* upm = &dict->units_per_em; + FT_Fixed temp = FT_ABS( matrix->yy ); + + + if ( temp != 0x10000L ) + { + *upm = FT_DivFix( *upm, temp ); + + matrix->xx = FT_DivFix( matrix->xx, temp ); + matrix->yx = FT_DivFix( matrix->yx, temp ); + matrix->xy = FT_DivFix( matrix->xy, temp ); + matrix->yy = FT_DivFix( matrix->yy, temp ); + offset->x = FT_DivFix( offset->x, temp ); + offset->y = FT_DivFix( offset->y, temp ); + } + + offset->x >>= 16; + offset->y >>= 16; + } + + for ( i = cff->num_subfonts; i > 0; i-- ) + { + CFF_FontRecDict sub = &cff->subfonts[i - 1]->font_dict; + CFF_FontRecDict top = &cff->top_font.font_dict; + + FT_Matrix* matrix; + FT_Vector* offset; + FT_ULong* upm; + FT_Fixed temp; + + + if ( sub->units_per_em ) + { + FT_Long scaling; + + + if ( top->units_per_em > 1 && sub->units_per_em > 1 ) + scaling = FT_MIN( top->units_per_em, sub->units_per_em ); + else + scaling = 1; + + FT_Matrix_Multiply_Scaled( &top->font_matrix, + &sub->font_matrix, + scaling ); + FT_Vector_Transform_Scaled( &sub->font_offset, + &top->font_matrix, + scaling ); + + sub->units_per_em = FT_MulDiv( sub->units_per_em, + top->units_per_em, + scaling ); + } + else + { + sub->font_matrix = top->font_matrix; + sub->font_offset = top->font_offset; + + sub->units_per_em = top->units_per_em; + } + + matrix = &sub->font_matrix; + offset = &sub->font_offset; + upm = &sub->units_per_em; + temp = FT_ABS( matrix->yy ); + + if ( temp != 0x10000L ) + { + *upm = FT_DivFix( *upm, temp ); + + /* if *upm is larger than 100*1000 we divide by 1000 -- */ + /* this can happen if e.g. there is no top-font FontMatrix */ + /* and the subfont FontMatrix already contains the complete */ + /* scaling for the subfont (see section 5.11 of the PLRM) */ + + /* 100 is a heuristic value */ + + if ( *upm > 100L * 1000L ) + *upm = ( *upm + 500 ) / 1000; + + matrix->xx = FT_DivFix( matrix->xx, temp ); + matrix->yx = FT_DivFix( matrix->yx, temp ); + matrix->xy = FT_DivFix( matrix->xy, temp ); + matrix->yy = FT_DivFix( matrix->yy, temp ); + offset->x = FT_DivFix( offset->x, temp ); + offset->y = FT_DivFix( offset->y, temp ); + } + + offset->x >>= 16; + offset->y >>= 16; + } + + if ( pure_cff ) + { + char* style_name = NULL; + + + /* set up num_faces */ + cffface->num_faces = cff->num_faces; + + /* compute number of glyphs */ + if ( dict->cid_registry != 0xFFFFU ) + cffface->num_glyphs = cff->charset.max_cid + 1; + else + cffface->num_glyphs = cff->charstrings_index.count; + + /* set global bbox, as well as EM size */ + cffface->bbox.xMin = dict->font_bbox.xMin >> 16; + cffface->bbox.yMin = dict->font_bbox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + cffface->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFF ) >> 16; + cffface->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFF ) >> 16; + + cffface->units_per_EM = (FT_UShort)( dict->units_per_em ); + + cffface->ascender = (FT_Short)( cffface->bbox.yMax ); + cffface->descender = (FT_Short)( cffface->bbox.yMin ); + + cffface->height = (FT_Short)( ( cffface->units_per_EM * 12 ) / 10 ); + if ( cffface->height < cffface->ascender - cffface->descender ) + cffface->height = (FT_Short)( cffface->ascender - cffface->descender ); + + cffface->underline_position = + (FT_Short)( dict->underline_position >> 16 ); + cffface->underline_thickness = + (FT_Short)( dict->underline_thickness >> 16 ); + + /* retrieve font family & style name */ + cffface->family_name = cff_index_get_name( cff, face_index ); + if ( cffface->family_name ) + { + char* full = cff_index_get_sid_string( cff, + dict->full_name ); + char* fullp = full; + char* family = cffface->family_name; + char* family_name = NULL; + + + remove_subset_prefix( cffface->family_name ); + + if ( dict->family_name ) + { + family_name = cff_index_get_sid_string( cff, + dict->family_name ); + if ( family_name ) + family = family_name; + } + + /* We try to extract the style name from the full name. */ + /* We need to ignore spaces and dashes during the search. */ + if ( full && family ) + { + while ( *fullp ) + { + /* skip common characters at the start of both strings */ + if ( *fullp == *family ) + { + family++; + fullp++; + continue; + } + + /* ignore spaces and dashes in full name during comparison */ + if ( *fullp == ' ' || *fullp == '-' ) + { + fullp++; + continue; + } + + /* ignore spaces and dashes in family name during comparison */ + if ( *family == ' ' || *family == '-' ) + { + family++; + continue; + } + + if ( !*family && *fullp ) + { + /* The full name begins with the same characters as the */ + /* family name, with spaces and dashes removed. In this */ + /* case, the remaining string in `fullp' will be used as */ + /* the style name. */ + style_name = cff_strcpy( memory, fullp ); + + /* remove the style part from the family name (if present) */ + remove_style( cffface->family_name, style_name ); + } + break; + } + } + } + else + { + char *cid_font_name = + cff_index_get_sid_string( cff, + dict->cid_font_name ); + + + /* do we have a `/FontName' for a CID-keyed font? */ + if ( cid_font_name ) + cffface->family_name = cff_strcpy( memory, cid_font_name ); + } + + if ( style_name ) + cffface->style_name = style_name; + else + /* assume "Regular" style if we don't know better */ + cffface->style_name = cff_strcpy( memory, (char *)"Regular" ); + + /*******************************************************************/ + /* */ + /* Compute face flags. */ + /* */ + flags = (FT_UInt32)( FT_FACE_FLAG_SCALABLE | /* scalable outlines */ + FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ + FT_FACE_FLAG_HINTER ); /* has native hinter */ + + if ( sfnt_format ) + flags |= (FT_UInt32)FT_FACE_FLAG_SFNT; + + /* fixed width font? */ + if ( dict->is_fixed_pitch ) + flags |= (FT_UInt32)FT_FACE_FLAG_FIXED_WIDTH; + + /* XXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */ +#if 0 + /* kerning available? */ + if ( face->kern_pairs ) + flags |= (FT_UInt32)FT_FACE_FLAG_KERNING; +#endif + + cffface->face_flags = flags; + + /*******************************************************************/ + /* */ + /* Compute style flags. */ + /* */ + flags = 0; + + if ( dict->italic_angle ) + flags |= FT_STYLE_FLAG_ITALIC; + + { + char *weight = cff_index_get_sid_string( cff, + dict->weight ); + + + if ( weight ) + if ( !ft_strcmp( weight, "Bold" ) || + !ft_strcmp( weight, "Black" ) ) + flags |= FT_STYLE_FLAG_BOLD; + } + + /* double check */ + if ( !(flags & FT_STYLE_FLAG_BOLD) && cffface->style_name ) + if ( !ft_strncmp( cffface->style_name, "Bold", 4 ) || + !ft_strncmp( cffface->style_name, "Black", 5 ) ) + flags |= FT_STYLE_FLAG_BOLD; + + cffface->style_flags = flags; + } + + +#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES + /* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */ + /* has unset this flag because of the 3.0 `post' table. */ + if ( dict->cid_registry == 0xFFFFU ) + cffface->face_flags |= FT_FACE_FLAG_GLYPH_NAMES; +#endif + + if ( dict->cid_registry != 0xFFFFU && pure_cff ) + cffface->face_flags |= FT_FACE_FLAG_CID_KEYED; + + + /*******************************************************************/ + /* */ + /* Compute char maps. */ + /* */ + + /* Try to synthesize a Unicode charmap if there is none available */ + /* already. If an OpenType font contains a Unicode "cmap", we */ + /* will use it, whatever be in the CFF part of the file. */ + { + FT_CharMapRec cmaprec; + FT_CharMap cmap; + FT_UInt nn; + CFF_Encoding encoding = &cff->encoding; + + + for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ ) + { + cmap = cffface->charmaps[nn]; + + /* Windows Unicode? */ + if ( cmap->platform_id == TT_PLATFORM_MICROSOFT && + cmap->encoding_id == TT_MS_ID_UNICODE_CS ) + goto Skip_Unicode; + + /* Apple Unicode platform id? */ + if ( cmap->platform_id == TT_PLATFORM_APPLE_UNICODE ) + goto Skip_Unicode; /* Apple Unicode */ + } + + /* since CID-keyed fonts don't contain glyph names, we can't */ + /* construct a cmap */ + if ( pure_cff && cff->top_font.font_dict.cid_registry != 0xFFFFU ) + goto Exit; + +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( nn + 1 > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "cff_face_init: no Unicode cmap is found, " + "and too many subtables (%d) to add synthesized cmap\n", + nn )); + goto Exit; + } +#endif + + /* we didn't find a Unicode charmap -- synthesize one */ + cmaprec.face = cffface; + cmaprec.platform_id = TT_PLATFORM_MICROSOFT; + cmaprec.encoding_id = TT_MS_ID_UNICODE_CS; + cmaprec.encoding = FT_ENCODING_UNICODE; + + nn = (FT_UInt)cffface->num_charmaps; + + error = FT_CMap_New( &FT_CFF_CMAP_UNICODE_CLASS_REC_GET, NULL, + &cmaprec, NULL ); + if ( error && FT_Err_No_Unicode_Glyph_Name != error ) + goto Exit; + error = FT_Err_Ok; + + /* if no Unicode charmap was previously selected, select this one */ + if ( cffface->charmap == NULL && nn != (FT_UInt)cffface->num_charmaps ) + cffface->charmap = cffface->charmaps[nn]; + + Skip_Unicode: +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( nn > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "cff_face_init: Unicode cmap is found, " + "but too many preceding subtables (%d) to access\n", + nn - 1 )); + goto Exit; + } +#endif + if ( encoding->count > 0 ) + { + FT_CMap_Class clazz; + + + cmaprec.face = cffface; + cmaprec.platform_id = TT_PLATFORM_ADOBE; /* Adobe platform id */ + + if ( encoding->offset == 0 ) + { + cmaprec.encoding_id = TT_ADOBE_ID_STANDARD; + cmaprec.encoding = FT_ENCODING_ADOBE_STANDARD; + clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET; + } + else if ( encoding->offset == 1 ) + { + cmaprec.encoding_id = TT_ADOBE_ID_EXPERT; + cmaprec.encoding = FT_ENCODING_ADOBE_EXPERT; + clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET; + } + else + { + cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM; + cmaprec.encoding = FT_ENCODING_ADOBE_CUSTOM; + clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET; + } + + error = FT_CMap_New( clazz, NULL, &cmaprec, NULL ); + } + } + } + + Exit: + return error; + + Bad_Format: + error = CFF_Err_Unknown_File_Format; + goto Exit; + } + + + FT_LOCAL_DEF( void ) + cff_face_done( FT_Face cffface ) /* CFF_Face */ + { + CFF_Face face = (CFF_Face)cffface; + FT_Memory memory; + SFNT_Service sfnt; + + + if ( !face ) + return; + + memory = cffface->memory; + sfnt = (SFNT_Service)face->sfnt; + + if ( sfnt ) + sfnt->done_face( face ); + + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + if ( cff ) + { + cff_font_done( cff ); + FT_FREE( face->extra.data ); + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + cff_driver_init( FT_Module module ) + { + FT_UNUSED( module ); + + return CFF_Err_Ok; + } + + + FT_LOCAL_DEF( void ) + cff_driver_done( FT_Module module ) + { + FT_UNUSED( module ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffobjs.h b/uppsrc/plugin/FT_fontsys/src/cff/cffobjs.h new file mode 100644 index 000000000..7e5e5bbc4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffobjs.h @@ -0,0 +1,181 @@ +/***************************************************************************/ +/* */ +/* cffobjs.h */ +/* */ +/* OpenType objects manager (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFOBJS_H__ +#define __CFFOBJS_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include "cfftypes.h" +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Driver */ + /* */ + /* <Description> */ + /* A handle to an OpenType driver object. */ + /* */ + typedef struct CFF_DriverRec_* CFF_Driver; + + typedef TT_Face CFF_Face; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Size */ + /* */ + /* <Description> */ + /* A handle to an OpenType size object. */ + /* */ + typedef struct CFF_SizeRec_ + { + FT_SizeRec root; + FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */ + + } CFF_SizeRec, *CFF_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to an OpenType glyph slot object. */ + /* */ + typedef struct CFF_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + + FT_Bool hint; + FT_Bool scaled; + + FT_Fixed x_scale; + FT_Fixed y_scale; + + } CFF_GlyphSlotRec, *CFF_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Internal */ + /* */ + /* <Description> */ + /* The interface to the `internal' field of `FT_Size'. */ + /* */ + typedef struct CFF_InternalRec_ + { + PSH_Globals topfont; + PSH_Globals subfonts[CFF_MAX_CID_FONTS]; + + } CFF_InternalRec, *CFF_Internal; + + + /*************************************************************************/ + /* */ + /* Subglyph transformation record. */ + /* */ + typedef struct CFF_Transform_ + { + FT_Fixed xx, xy; /* transformation matrix coefficients */ + FT_Fixed yx, yy; + FT_F26Dot6 ox, oy; /* offsets */ + + } CFF_Transform; + + + /***********************************************************************/ + /* */ + /* TrueType driver class. */ + /* */ + typedef struct CFF_DriverRec_ + { + FT_DriverRec root; + void* extension_component; + + } CFF_DriverRec; + + + FT_LOCAL( FT_Error ) + cff_size_init( FT_Size size ); /* CFF_Size */ + + FT_LOCAL( void ) + cff_size_done( FT_Size size ); /* CFF_Size */ + + FT_LOCAL( FT_Error ) + cff_size_request( FT_Size size, + FT_Size_Request req ); + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL( FT_Error ) + cff_size_select( FT_Size size, + FT_ULong strike_index ); + +#endif + + FT_LOCAL( void ) + cff_slot_done( FT_GlyphSlot slot ); + + FT_LOCAL( FT_Error ) + cff_slot_init( FT_GlyphSlot slot ); + + + /*************************************************************************/ + /* */ + /* Face functions */ + /* */ + FT_LOCAL( FT_Error ) + cff_face_init( FT_Stream stream, + FT_Face face, /* CFF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + cff_face_done( FT_Face face ); /* CFF_Face */ + + + /*************************************************************************/ + /* */ + /* Driver functions */ + /* */ + FT_LOCAL( FT_Error ) + cff_driver_init( FT_Module module ); + + FT_LOCAL( void ) + cff_driver_done( FT_Module module ); + + +FT_END_HEADER + +#endif /* __CFFOBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffparse.c b/uppsrc/plugin/FT_fontsys/src/cff/cffparse.c new file mode 100644 index 000000000..aa3de0715 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffparse.c @@ -0,0 +1,945 @@ +/***************************************************************************/ +/* */ +/* cffparse.c */ +/* */ +/* CFF token stream parser (body) */ +/* */ +/* Copyright 1996-2004, 2007-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "cffparse.h" +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H + +#include "cfferrs.h" +#include "cffpic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffparse + + + FT_LOCAL_DEF( void ) + cff_parser_init( CFF_Parser parser, + FT_UInt code, + void* object, + FT_Library library) + { + FT_MEM_ZERO( parser, sizeof ( *parser ) ); + + parser->top = parser->stack; + parser->object_code = code; + parser->object = object; + parser->library = library; + } + + + /* read an integer */ + static FT_Long + cff_parse_integer( FT_Byte* start, + FT_Byte* limit ) + { + FT_Byte* p = start; + FT_Int v = *p++; + FT_Long val = 0; + + + if ( v == 28 ) + { + if ( p + 2 > limit ) + goto Bad; + + val = (FT_Short)( ( (FT_Int)p[0] << 8 ) | p[1] ); + p += 2; + } + else if ( v == 29 ) + { + if ( p + 4 > limit ) + goto Bad; + + val = ( (FT_Long)p[0] << 24 ) | + ( (FT_Long)p[1] << 16 ) | + ( (FT_Long)p[2] << 8 ) | + p[3]; + p += 4; + } + else if ( v < 247 ) + { + val = v - 139; + } + else if ( v < 251 ) + { + if ( p + 1 > limit ) + goto Bad; + + val = ( v - 247 ) * 256 + p[0] + 108; + p++; + } + else + { + if ( p + 1 > limit ) + goto Bad; + + val = -( v - 251 ) * 256 - p[0] - 108; + p++; + } + + Exit: + return val; + + Bad: + val = 0; + goto Exit; + } + + + static const FT_Long power_tens[] = + { + 1L, + 10L, + 100L, + 1000L, + 10000L, + 100000L, + 1000000L, + 10000000L, + 100000000L, + 1000000000L + }; + + + /* read a real */ + static FT_Fixed + cff_parse_real( FT_Byte* start, + FT_Byte* limit, + FT_Long power_ten, + FT_Long* scaling ) + { + FT_Byte* p = start; + FT_UInt nib; + FT_UInt phase; + + FT_Long result, number, exponent; + FT_Int sign = 0, exponent_sign = 0; + FT_Long exponent_add, integer_length, fraction_length; + + + if ( scaling ) + *scaling = 0; + + result = 0; + + number = 0; + exponent = 0; + + exponent_add = 0; + integer_length = 0; + fraction_length = 0; + + /* First of all, read the integer part. */ + phase = 4; + + for (;;) + { + /* If we entered this iteration with phase == 4, we need to */ + /* read a new byte. This also skips past the initial 0x1E. */ + if ( phase ) + { + p++; + + /* Make sure we don't read past the end. */ + if ( p >= limit ) + goto Exit; + } + + /* Get the nibble. */ + nib = ( p[0] >> phase ) & 0xF; + phase = 4 - phase; + + if ( nib == 0xE ) + sign = 1; + else if ( nib > 9 ) + break; + else + { + /* Increase exponent if we can't add the digit. */ + if ( number >= 0xCCCCCCCL ) + exponent_add++; + /* Skip leading zeros. */ + else if ( nib || number ) + { + integer_length++; + number = number * 10 + nib; + } + } + } + + /* Read fraction part, if any. */ + if ( nib == 0xa ) + for (;;) + { + /* If we entered this iteration with phase == 4, we need */ + /* to read a new byte. */ + if ( phase ) + { + p++; + + /* Make sure we don't read past the end. */ + if ( p >= limit ) + goto Exit; + } + + /* Get the nibble. */ + nib = ( p[0] >> phase ) & 0xF; + phase = 4 - phase; + if ( nib >= 10 ) + break; + + /* Skip leading zeros if possible. */ + if ( !nib && !number ) + exponent_add--; + /* Only add digit if we don't overflow. */ + else if ( number < 0xCCCCCCCL && fraction_length < 9 ) + { + fraction_length++; + number = number * 10 + nib; + } + } + + /* Read exponent, if any. */ + if ( nib == 12 ) + { + exponent_sign = 1; + nib = 11; + } + + if ( nib == 11 ) + { + for (;;) + { + /* If we entered this iteration with phase == 4, */ + /* we need to read a new byte. */ + if ( phase ) + { + p++; + + /* Make sure we don't read past the end. */ + if ( p >= limit ) + goto Exit; + } + + /* Get the nibble. */ + nib = ( p[0] >> phase ) & 0xF; + phase = 4 - phase; + if ( nib >= 10 ) + break; + + exponent = exponent * 10 + nib; + + /* Arbitrarily limit exponent. */ + if ( exponent > 1000 ) + goto Exit; + } + + if ( exponent_sign ) + exponent = -exponent; + } + + /* We don't check `power_ten' and `exponent_add'. */ + exponent += power_ten + exponent_add; + + if ( scaling ) + { + /* Only use `fraction_length'. */ + fraction_length += integer_length; + exponent += integer_length; + + if ( fraction_length <= 5 ) + { + if ( number > 0x7FFFL ) + { + result = FT_DivFix( number, 10 ); + *scaling = exponent - fraction_length + 1; + } + else + { + if ( exponent > 0 ) + { + FT_Long new_fraction_length, shift; + + + /* Make `scaling' as small as possible. */ + new_fraction_length = FT_MIN( exponent, 5 ); + exponent -= new_fraction_length; + shift = new_fraction_length - fraction_length; + + number *= power_tens[shift]; + if ( number > 0x7FFFL ) + { + number /= 10; + exponent += 1; + } + } + else + exponent -= fraction_length; + + result = number << 16; + *scaling = exponent; + } + } + else + { + if ( ( number / power_tens[fraction_length - 5] ) > 0x7FFFL ) + { + result = FT_DivFix( number, power_tens[fraction_length - 4] ); + *scaling = exponent - 4; + } + else + { + result = FT_DivFix( number, power_tens[fraction_length - 5] ); + *scaling = exponent - 5; + } + } + } + else + { + integer_length += exponent; + fraction_length -= exponent; + + /* Check for overflow and underflow. */ + if ( FT_ABS( integer_length ) > 5 ) + goto Exit; + + /* Remove non-significant digits. */ + if ( integer_length < 0 ) + { + number /= power_tens[-integer_length]; + fraction_length += integer_length; + } + + /* this can only happen if exponent was non-zero */ + if ( fraction_length == 10 ) + { + number /= 10; + fraction_length -= 1; + } + + /* Convert into 16.16 format. */ + if ( fraction_length > 0 ) + { + if ( ( number / power_tens[fraction_length] ) > 0x7FFFL ) + goto Exit; + + result = FT_DivFix( number, power_tens[fraction_length] ); + } + else + { + number *= power_tens[-fraction_length]; + + if ( number > 0x7FFFL ) + goto Exit; + + result = number << 16; + } + } + + if ( sign ) + result = -result; + + Exit: + return result; + } + + + /* read a number, either integer or real */ + static FT_Long + cff_parse_num( FT_Byte** d ) + { + return **d == 30 ? ( cff_parse_real( d[0], d[1], 0, NULL ) >> 16 ) + : cff_parse_integer( d[0], d[1] ); + } + + + /* read a floating point number, either integer or real */ + static FT_Fixed + cff_parse_fixed( FT_Byte** d ) + { + return **d == 30 ? cff_parse_real( d[0], d[1], 0, NULL ) + : cff_parse_integer( d[0], d[1] ) << 16; + } + + + /* read a floating point number, either integer or real, */ + /* but return `10^scaling' times the number read in */ + static FT_Fixed + cff_parse_fixed_scaled( FT_Byte** d, + FT_Long scaling ) + { + return **d == 30 ? cff_parse_real( d[0], d[1], scaling, NULL ) + : ( cff_parse_integer( d[0], d[1] ) * + power_tens[scaling] ) << 16; + } + + + /* read a floating point number, either integer or real, */ + /* and return it as precise as possible -- `scaling' returns */ + /* the scaling factor (as a power of 10) */ + static FT_Fixed + cff_parse_fixed_dynamic( FT_Byte** d, + FT_Long* scaling ) + { + FT_ASSERT( scaling ); + + if ( **d == 30 ) + return cff_parse_real( d[0], d[1], 0, scaling ); + else + { + FT_Long number; + FT_Int integer_length; + + + number = cff_parse_integer( d[0], d[1] ); + + if ( number > 0x7FFFL ) + { + for ( integer_length = 5; integer_length < 10; integer_length++ ) + if ( number < power_tens[integer_length] ) + break; + + if ( ( number / power_tens[integer_length - 5] ) > 0x7FFFL ) + { + *scaling = integer_length - 4; + return FT_DivFix( number, power_tens[integer_length - 4] ); + } + else + { + *scaling = integer_length - 5; + return FT_DivFix( number, power_tens[integer_length - 5] ); + } + } + else + { + *scaling = 0; + return number << 16; + } + } + } + + + static FT_Error + cff_parse_font_matrix( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Matrix* matrix = &dict->font_matrix; + FT_Vector* offset = &dict->font_offset; + FT_ULong* upm = &dict->units_per_em; + FT_Byte** data = parser->stack; + FT_Error error = CFF_Err_Stack_Underflow; + + + if ( parser->top >= parser->stack + 6 ) + { + FT_Long scaling; + + + error = CFF_Err_Ok; + + /* We expect a well-formed font matrix, this is, the matrix elements */ + /* `xx' and `yy' are of approximately the same magnitude. To avoid */ + /* loss of precision, we use the magnitude of element `xx' to scale */ + /* all other elements. The scaling factor is then contained in the */ + /* `units_per_em' value. */ + + matrix->xx = cff_parse_fixed_dynamic( data++, &scaling ); + + scaling = -scaling; + + if ( scaling < 0 || scaling > 9 ) + { + /* Return default matrix in case of unlikely values. */ + + FT_TRACE1(( "cff_parse_font_matrix:" + " strange scaling value for xx element (%d),\n" + " " + " using default matrix\n", scaling )); + + matrix->xx = 0x10000L; + matrix->yx = 0; + matrix->yx = 0; + matrix->yy = 0x10000L; + offset->x = 0; + offset->y = 0; + *upm = 1; + + goto Exit; + } + + matrix->yx = cff_parse_fixed_scaled( data++, scaling ); + matrix->xy = cff_parse_fixed_scaled( data++, scaling ); + matrix->yy = cff_parse_fixed_scaled( data++, scaling ); + offset->x = cff_parse_fixed_scaled( data++, scaling ); + offset->y = cff_parse_fixed_scaled( data, scaling ); + + *upm = power_tens[scaling]; + + FT_TRACE4(( " font matrix: [%f %f %f %f]\n", + (double)matrix->xx / *upm / 65536, + (double)matrix->xy / *upm / 65536, + (double)matrix->yx / *upm / 65536, + (double)matrix->yy / *upm / 65536 )); + } + + Exit: + return error; + } + + + static FT_Error + cff_parse_font_bbox( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_BBox* bbox = &dict->font_bbox; + FT_Byte** data = parser->stack; + FT_Error error; + + + error = CFF_Err_Stack_Underflow; + + if ( parser->top >= parser->stack + 4 ) + { + bbox->xMin = FT_RoundFix( cff_parse_fixed( data++ ) ); + bbox->yMin = FT_RoundFix( cff_parse_fixed( data++ ) ); + bbox->xMax = FT_RoundFix( cff_parse_fixed( data++ ) ); + bbox->yMax = FT_RoundFix( cff_parse_fixed( data ) ); + error = CFF_Err_Ok; + + FT_TRACE4(( " bbox: [%d %d %d %d]\n", + bbox->xMin / 65536, + bbox->yMin / 65536, + bbox->xMax / 65536, + bbox->yMax / 65536 )); + } + + return error; + } + + + static FT_Error + cff_parse_private_dict( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Byte** data = parser->stack; + FT_Error error; + + + error = CFF_Err_Stack_Underflow; + + if ( parser->top >= parser->stack + 2 ) + { + dict->private_size = cff_parse_num( data++ ); + dict->private_offset = cff_parse_num( data ); + error = CFF_Err_Ok; + } + + return error; + } + + + static FT_Error + cff_parse_cid_ros( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Byte** data = parser->stack; + FT_Error error; + + + error = CFF_Err_Stack_Underflow; + + if ( parser->top >= parser->stack + 3 ) + { + dict->cid_registry = (FT_UInt)cff_parse_num( data++ ); + dict->cid_ordering = (FT_UInt)cff_parse_num( data++ ); + if ( **data == 30 ) + FT_TRACE1(( "cff_parse_cid_ros: real supplement is rounded\n" )); + dict->cid_supplement = cff_parse_num( data ); + if ( dict->cid_supplement < 0 ) + FT_TRACE1(( "cff_parse_cid_ros: negative supplement %d is found\n", + dict->cid_supplement )); + error = CFF_Err_Ok; + + FT_TRACE4(( " ROS: registry sid %d, ordering sid %d, supplement %d\n", + dict->cid_registry, + dict->cid_ordering, + dict->cid_supplement )); + } + + return error; + } + + +#define CFF_FIELD_NUM( code, name ) \ + CFF_FIELD( code, name, cff_kind_num ) +#define CFF_FIELD_FIXED( code, name ) \ + CFF_FIELD( code, name, cff_kind_fixed ) +#define CFF_FIELD_FIXED_1000( code, name ) \ + CFF_FIELD( code, name, cff_kind_fixed_thousand ) +#define CFF_FIELD_STRING( code, name ) \ + CFF_FIELD( code, name, cff_kind_string ) +#define CFF_FIELD_BOOL( code, name ) \ + CFF_FIELD( code, name, cff_kind_bool ) +#define CFF_FIELD_DELTA( code, name, max ) \ + CFF_FIELD( code, name, cff_kind_delta ) + +#define CFFCODE_TOPDICT 0x1000 +#define CFFCODE_PRIVATE 0x2000 + +#ifndef FT_CONFIG_OPTION_PIC + +#define CFF_FIELD_CALLBACK( code, name ) \ + { \ + cff_kind_callback, \ + code | CFFCODE, \ + 0, 0, \ + cff_parse_ ## name, \ + 0, 0 \ + }, + +#undef CFF_FIELD +#define CFF_FIELD( code, name, kind ) \ + { \ + kind, \ + code | CFFCODE, \ + FT_FIELD_OFFSET( name ), \ + FT_FIELD_SIZE( name ), \ + 0, 0, 0 \ + }, + +#undef CFF_FIELD_DELTA +#define CFF_FIELD_DELTA( code, name, max ) \ + { \ + cff_kind_delta, \ + code | CFFCODE, \ + FT_FIELD_OFFSET( name ), \ + FT_FIELD_SIZE_DELTA( name ), \ + 0, \ + max, \ + FT_FIELD_OFFSET( num_ ## name ) \ + }, + + static const CFF_Field_Handler cff_field_handlers[] = + { + +#include "cfftoken.h" + + { 0, 0, 0, 0, 0, 0, 0 } + }; + + +#else /* FT_CONFIG_OPTION_PIC */ + + void FT_Destroy_Class_cff_field_handlers(FT_Library library, CFF_Field_Handler* clazz) + { + FT_Memory memory = library->memory; + if ( clazz ) + FT_FREE( clazz ); + } + + FT_Error FT_Create_Class_cff_field_handlers(FT_Library library, CFF_Field_Handler** output_class) + { + CFF_Field_Handler* clazz; + FT_Error error; + FT_Memory memory = library->memory; + int i=0; + +#undef CFF_FIELD +#undef CFF_FIELD_DELTA +#undef CFF_FIELD_CALLBACK +#define CFF_FIELD_CALLBACK( code, name ) i++; +#define CFF_FIELD( code, name, kind ) i++; +#define CFF_FIELD_DELTA( code, name, max ) i++; + +#include "cfftoken.h" + i++;/*{ 0, 0, 0, 0, 0, 0, 0 }*/ + + if ( FT_ALLOC( clazz, sizeof(CFF_Field_Handler)*i ) ) + return error; + + i=0; +#undef CFF_FIELD +#undef CFF_FIELD_DELTA +#undef CFF_FIELD_CALLBACK + +#define CFF_FIELD_CALLBACK( code_, name_ ) \ + clazz[i].kind = cff_kind_callback; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = 0; \ + clazz[i].size = 0; \ + clazz[i].reader = cff_parse_ ## name_; \ + clazz[i].array_max = 0; \ + clazz[i].count_offset = 0; \ + i++; + +#undef CFF_FIELD +#define CFF_FIELD( code_, name_, kind_ ) \ + clazz[i].kind = kind_; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = FT_FIELD_OFFSET( name_ ); \ + clazz[i].size = FT_FIELD_SIZE( name_ ); \ + clazz[i].reader = 0; \ + clazz[i].array_max = 0; \ + clazz[i].count_offset = 0; \ + i++; \ + +#undef CFF_FIELD_DELTA +#define CFF_FIELD_DELTA( code_, name_, max_ ) \ + clazz[i].kind = cff_kind_delta; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = FT_FIELD_OFFSET( name_ ); \ + clazz[i].size = FT_FIELD_SIZE_DELTA( name_ ); \ + clazz[i].reader = 0; \ + clazz[i].array_max = max_; \ + clazz[i].count_offset = FT_FIELD_OFFSET( num_ ## name_ ); \ + i++; + +#include "cfftoken.h" + + clazz[i].kind = 0; + clazz[i].code = 0; + clazz[i].offset = 0; + clazz[i].size = 0; + clazz[i].reader = 0; + clazz[i].array_max = 0; + clazz[i].count_offset = 0; + + *output_class = clazz; + return CFF_Err_Ok; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + + FT_LOCAL_DEF( FT_Error ) + cff_parser_run( CFF_Parser parser, + FT_Byte* start, + FT_Byte* limit ) + { + FT_Byte* p = start; + FT_Error error = CFF_Err_Ok; + FT_Library library = parser->library; + FT_UNUSED(library); + + + parser->top = parser->stack; + parser->start = start; + parser->limit = limit; + parser->cursor = start; + + while ( p < limit ) + { + FT_UInt v = *p; + + + if ( v >= 27 && v != 31 ) + { + /* it's a number; we will push its position on the stack */ + if ( parser->top - parser->stack >= CFF_MAX_STACK_DEPTH ) + goto Stack_Overflow; + + *parser->top ++ = p; + + /* now, skip it */ + if ( v == 30 ) + { + /* skip real number */ + p++; + for (;;) + { + /* An unterminated floating point number at the */ + /* end of a dictionary is invalid but harmless. */ + if ( p >= limit ) + goto Exit; + v = p[0] >> 4; + if ( v == 15 ) + break; + v = p[0] & 0xF; + if ( v == 15 ) + break; + p++; + } + } + else if ( v == 28 ) + p += 2; + else if ( v == 29 ) + p += 4; + else if ( v > 246 ) + p += 1; + } + else + { + /* This is not a number, hence it's an operator. Compute its code */ + /* and look for it in our current list. */ + + FT_UInt code; + FT_UInt num_args = (FT_UInt) + ( parser->top - parser->stack ); + const CFF_Field_Handler* field; + + + *parser->top = p; + code = v; + if ( v == 12 ) + { + /* two byte operator */ + p++; + if ( p >= limit ) + goto Syntax_Error; + + code = 0x100 | p[0]; + } + code = code | parser->object_code; + + for ( field = FT_CFF_FIELD_HANDLERS_GET; field->kind; field++ ) + { + if ( field->code == (FT_Int)code ) + { + /* we found our field's handler; read it */ + FT_Long val; + FT_Byte* q = (FT_Byte*)parser->object + field->offset; + + + /* check that we have enough arguments -- except for */ + /* delta encoded arrays, which can be empty */ + if ( field->kind != cff_kind_delta && num_args < 1 ) + goto Stack_Underflow; + + switch ( field->kind ) + { + case cff_kind_bool: + case cff_kind_string: + case cff_kind_num: + val = cff_parse_num( parser->stack ); + goto Store_Number; + + case cff_kind_fixed: + val = cff_parse_fixed( parser->stack ); + goto Store_Number; + + case cff_kind_fixed_thousand: + val = cff_parse_fixed_scaled( parser->stack, 3 ); + + Store_Number: + switch ( field->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)q = (FT_Byte)val; + break; + + case (16 / FT_CHAR_BIT): + *(FT_Short*)q = (FT_Short)val; + break; + + case (32 / FT_CHAR_BIT): + *(FT_Int32*)q = (FT_Int)val; + break; + + default: /* for 64-bit systems */ + *(FT_Long*)q = val; + } + break; + + case cff_kind_delta: + { + FT_Byte* qcount = (FT_Byte*)parser->object + + field->count_offset; + + FT_Byte** data = parser->stack; + + + if ( num_args > field->array_max ) + num_args = field->array_max; + + /* store count */ + *qcount = (FT_Byte)num_args; + + val = 0; + while ( num_args > 0 ) + { + val += cff_parse_num( data++ ); + switch ( field->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)q = (FT_Byte)val; + break; + + case (16 / FT_CHAR_BIT): + *(FT_Short*)q = (FT_Short)val; + break; + + case (32 / FT_CHAR_BIT): + *(FT_Int32*)q = (FT_Int)val; + break; + + default: /* for 64-bit systems */ + *(FT_Long*)q = val; + } + + q += field->size; + num_args--; + } + } + break; + + default: /* callback */ + error = field->reader( parser ); + if ( error ) + goto Exit; + } + goto Found; + } + } + + /* this is an unknown operator, or it is unsupported; */ + /* we will ignore it for now. */ + + Found: + /* clear stack */ + parser->top = parser->stack; + } + p++; + } + + Exit: + return error; + + Stack_Overflow: + error = CFF_Err_Invalid_Argument; + goto Exit; + + Stack_Underflow: + error = CFF_Err_Invalid_Argument; + goto Exit; + + Syntax_Error: + error = CFF_Err_Invalid_Argument; + goto Exit; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffparse.h b/uppsrc/plugin/FT_fontsys/src/cff/cffparse.h new file mode 100644 index 000000000..40ec1dd1a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffparse.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* cffparse.h */ +/* */ +/* CFF token stream parser (specification) */ +/* */ +/* Copyright 1996-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFF_PARSE_H__ +#define __CFF_PARSE_H__ + + +#include <freetype/ft2build.h> +#include "cfftypes.h" +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + +#define CFF_MAX_STACK_DEPTH 96 + +#define CFF_CODE_TOPDICT 0x1000 +#define CFF_CODE_PRIVATE 0x2000 + + + typedef struct CFF_ParserRec_ + { + FT_Library library; + FT_Byte* start; + FT_Byte* limit; + FT_Byte* cursor; + + FT_Byte* stack[CFF_MAX_STACK_DEPTH + 1]; + FT_Byte** top; + + FT_UInt object_code; + void* object; + + } CFF_ParserRec, *CFF_Parser; + + + FT_LOCAL( void ) + cff_parser_init( CFF_Parser parser, + FT_UInt code, + void* object, + FT_Library library); + + FT_LOCAL( FT_Error ) + cff_parser_run( CFF_Parser parser, + FT_Byte* start, + FT_Byte* limit ); + + + enum + { + cff_kind_none = 0, + cff_kind_num, + cff_kind_fixed, + cff_kind_fixed_thousand, + cff_kind_string, + cff_kind_bool, + cff_kind_delta, + cff_kind_callback, + + cff_kind_max /* do not remove */ + }; + + + /* now generate handlers for the most simple fields */ + typedef FT_Error (*CFF_Field_Reader)( CFF_Parser parser ); + + typedef struct CFF_Field_Handler_ + { + int kind; + int code; + FT_UInt offset; + FT_Byte size; + CFF_Field_Reader reader; + FT_UInt array_max; + FT_UInt count_offset; + + } CFF_Field_Handler; + + +FT_END_HEADER + + +#endif /* __CFF_PARSE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffpic.c b/uppsrc/plugin/FT_fontsys/src/cff/cffpic.c new file mode 100644 index 000000000..cfe2d014e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffpic.c @@ -0,0 +1,101 @@ +/***************************************************************************/ +/* */ +/* cffpic.c */ +/* */ +/* The FreeType position independent code services for cff module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "cffpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from cffdrivr.c */ + FT_Error FT_Create_Class_cff_services( FT_Library, FT_ServiceDescRec**); + void FT_Destroy_Class_cff_services( FT_Library, FT_ServiceDescRec*); + void FT_Init_Class_cff_service_ps_info( FT_Library, FT_Service_PsInfoRec*); + void FT_Init_Class_cff_service_glyph_dict( FT_Library, FT_Service_GlyphDictRec*); + void FT_Init_Class_cff_service_ps_name( FT_Library, FT_Service_PsFontNameRec*); + void FT_Init_Class_cff_service_get_cmap_info( FT_Library, FT_Service_TTCMapsRec*); + void FT_Init_Class_cff_service_cid_info( FT_Library, FT_Service_CIDRec*); + + /* forward declaration of PIC init functions from cffparse.c */ + FT_Error FT_Create_Class_cff_field_handlers( FT_Library, CFF_Field_Handler**); + void FT_Destroy_Class_cff_field_handlers( FT_Library, CFF_Field_Handler*); + + /* forward declaration of PIC init functions from cffcmap.c */ + void FT_Init_Class_cff_cmap_encoding_class_rec( FT_Library, FT_CMap_ClassRec*); + void FT_Init_Class_cff_cmap_unicode_class_rec( FT_Library, FT_CMap_ClassRec*); + + void + cff_driver_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->cff ) + { + CffModulePIC* container = (CffModulePIC*)pic_container->cff; + if(container->cff_services) + FT_Destroy_Class_cff_services(library, container->cff_services); + container->cff_services = NULL; + if(container->cff_field_handlers) + FT_Destroy_Class_cff_field_handlers(library, container->cff_field_handlers); + container->cff_field_handlers = NULL; + FT_FREE( container ); + pic_container->cff = NULL; + } + } + + + FT_Error + cff_driver_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = CFF_Err_Ok; + CffModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->cff = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_cff_services(library, &container->cff_services); + if(error) + goto Exit; + error = FT_Create_Class_cff_field_handlers(library, &container->cff_field_handlers); + if(error) + goto Exit; + FT_Init_Class_cff_service_ps_info(library, &container->cff_service_ps_info); + FT_Init_Class_cff_service_glyph_dict(library, &container->cff_service_glyph_dict); + FT_Init_Class_cff_service_ps_name(library, &container->cff_service_ps_name); + FT_Init_Class_cff_service_get_cmap_info(library, &container->cff_service_get_cmap_info); + FT_Init_Class_cff_service_cid_info(library, &container->cff_service_cid_info); + FT_Init_Class_cff_cmap_encoding_class_rec(library, &container->cff_cmap_encoding_class_rec); + FT_Init_Class_cff_cmap_unicode_class_rec(library, &container->cff_cmap_unicode_class_rec); +Exit: + if(error) + cff_driver_class_pic_free(library); + return error; + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cffpic.h b/uppsrc/plugin/FT_fontsys/src/cff/cffpic.h new file mode 100644 index 000000000..e29d06813 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cffpic.h @@ -0,0 +1,80 @@ +/***************************************************************************/ +/* */ +/* cffpic.h */ +/* */ +/* The FreeType position independent code services for cff module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFPIC_H__ +#define __CFFPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_CFF_SERVICE_PS_INFO_GET cff_service_ps_info +#define FT_CFF_SERVICE_GLYPH_DICT_GET cff_service_glyph_dict +#define FT_CFF_SERVICE_PS_NAME_GET cff_service_ps_name +#define FT_CFF_SERVICE_GET_CMAP_INFO_GET cff_service_get_cmap_info +#define FT_CFF_SERVICE_CID_INFO_GET cff_service_cid_info +#define FT_CFF_SERVICES_GET cff_services +#define FT_CFF_CMAP_ENCODING_CLASS_REC_GET cff_cmap_encoding_class_rec +#define FT_CFF_CMAP_UNICODE_CLASS_REC_GET cff_cmap_unicode_class_rec +#define FT_CFF_FIELD_HANDLERS_GET cff_field_handlers + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_SERVICE_GLYPH_DICT_H +#include "cffparse.h" +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_TT_CMAP_H +#include FT_SERVICE_CID_H + + typedef struct CffModulePIC_ + { + FT_ServiceDescRec* cff_services; + CFF_Field_Handler* cff_field_handlers; + FT_Service_PsInfoRec cff_service_ps_info; + FT_Service_GlyphDictRec cff_service_glyph_dict; + FT_Service_PsFontNameRec cff_service_ps_name; + FT_Service_TTCMapsRec cff_service_get_cmap_info; + FT_Service_CIDRec cff_service_cid_info; + FT_CMap_ClassRec cff_cmap_encoding_class_rec; + FT_CMap_ClassRec cff_cmap_unicode_class_rec; + } CffModulePIC; + +#define GET_PIC(lib) ((CffModulePIC*)((lib)->pic_container.cff)) +#define FT_CFF_SERVICE_PS_INFO_GET (GET_PIC(library)->cff_service_ps_info) +#define FT_CFF_SERVICE_GLYPH_DICT_GET (GET_PIC(library)->cff_service_glyph_dict) +#define FT_CFF_SERVICE_PS_NAME_GET (GET_PIC(library)->cff_service_ps_name) +#define FT_CFF_SERVICE_GET_CMAP_INFO_GET (GET_PIC(library)->cff_service_get_cmap_info) +#define FT_CFF_SERVICE_CID_INFO_GET (GET_PIC(library)->cff_service_cid_info) +#define FT_CFF_SERVICES_GET (GET_PIC(library)->cff_services) +#define FT_CFF_CMAP_ENCODING_CLASS_REC_GET (GET_PIC(library)->cff_cmap_encoding_class_rec) +#define FT_CFF_CMAP_UNICODE_CLASS_REC_GET (GET_PIC(library)->cff_cmap_unicode_class_rec) +#define FT_CFF_FIELD_HANDLERS_GET (GET_PIC(library)->cff_field_handlers) + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __CFFPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cfftoken.h b/uppsrc/plugin/FT_fontsys/src/cff/cfftoken.h new file mode 100644 index 000000000..6bb27d5ca --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cfftoken.h @@ -0,0 +1,97 @@ +/***************************************************************************/ +/* */ +/* cfftoken.h */ +/* */ +/* CFF token definitions (specification only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_FontRecDictRec + +#undef CFFCODE +#define CFFCODE CFFCODE_TOPDICT + + CFF_FIELD_STRING ( 0, version ) + CFF_FIELD_STRING ( 1, notice ) + CFF_FIELD_STRING ( 0x100, copyright ) + CFF_FIELD_STRING ( 2, full_name ) + CFF_FIELD_STRING ( 3, family_name ) + CFF_FIELD_STRING ( 4, weight ) + CFF_FIELD_BOOL ( 0x101, is_fixed_pitch ) + CFF_FIELD_FIXED ( 0x102, italic_angle ) + CFF_FIELD_FIXED ( 0x103, underline_position ) + CFF_FIELD_FIXED ( 0x104, underline_thickness ) + CFF_FIELD_NUM ( 0x105, paint_type ) + CFF_FIELD_NUM ( 0x106, charstring_type ) + CFF_FIELD_CALLBACK( 0x107, font_matrix ) + CFF_FIELD_NUM ( 13, unique_id ) + CFF_FIELD_CALLBACK( 5, font_bbox ) + CFF_FIELD_NUM ( 0x108, stroke_width ) + CFF_FIELD_NUM ( 15, charset_offset ) + CFF_FIELD_NUM ( 16, encoding_offset ) + CFF_FIELD_NUM ( 17, charstrings_offset ) + CFF_FIELD_CALLBACK( 18, private_dict ) + CFF_FIELD_NUM ( 0x114, synthetic_base ) + CFF_FIELD_STRING ( 0x115, embedded_postscript ) + +#if 0 + CFF_FIELD_STRING ( 0x116, base_font_name ) + CFF_FIELD_DELTA ( 0x117, base_font_blend, 16 ) + CFF_FIELD_CALLBACK( 0x118, multiple_master ) + CFF_FIELD_CALLBACK( 0x119, blend_axis_types ) +#endif + + CFF_FIELD_CALLBACK( 0x11E, cid_ros ) + CFF_FIELD_NUM ( 0x11F, cid_font_version ) + CFF_FIELD_NUM ( 0x120, cid_font_revision ) + CFF_FIELD_NUM ( 0x121, cid_font_type ) + CFF_FIELD_NUM ( 0x122, cid_count ) + CFF_FIELD_NUM ( 0x123, cid_uid_base ) + CFF_FIELD_NUM ( 0x124, cid_fd_array_offset ) + CFF_FIELD_NUM ( 0x125, cid_fd_select_offset ) + CFF_FIELD_STRING ( 0x126, cid_font_name ) + +#if 0 + CFF_FIELD_NUM ( 0x127, chameleon ) +#endif + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_PrivateRec +#undef CFFCODE +#define CFFCODE CFFCODE_PRIVATE + + CFF_FIELD_DELTA ( 6, blue_values, 14 ) + CFF_FIELD_DELTA ( 7, other_blues, 10 ) + CFF_FIELD_DELTA ( 8, family_blues, 14 ) + CFF_FIELD_DELTA ( 9, family_other_blues, 10 ) + CFF_FIELD_FIXED_1000( 0x109, blue_scale ) + CFF_FIELD_NUM ( 0x10A, blue_shift ) + CFF_FIELD_NUM ( 0x10B, blue_fuzz ) + CFF_FIELD_NUM ( 10, standard_width ) + CFF_FIELD_NUM ( 11, standard_height ) + CFF_FIELD_DELTA ( 0x10C, snap_widths, 13 ) + CFF_FIELD_DELTA ( 0x10D, snap_heights, 13 ) + CFF_FIELD_BOOL ( 0x10E, force_bold ) + CFF_FIELD_FIXED ( 0x10F, force_bold_threshold ) + CFF_FIELD_NUM ( 0x110, lenIV ) + CFF_FIELD_NUM ( 0x111, language_group ) + CFF_FIELD_FIXED ( 0x112, expansion_factor ) + CFF_FIELD_NUM ( 0x113, initial_random_seed ) + CFF_FIELD_NUM ( 19, local_subrs_offset ) + CFF_FIELD_NUM ( 20, default_width ) + CFF_FIELD_NUM ( 21, nominal_width ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cff/cfftypes.h b/uppsrc/plugin/FT_fontsys/src/cff/cfftypes.h new file mode 100644 index 000000000..efdc75ed9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cff/cfftypes.h @@ -0,0 +1,280 @@ +/***************************************************************************/ +/* */ +/* cfftypes.h */ +/* */ +/* Basic OpenType/CFF type definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2003, 2006-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFTYPES_H__ +#define __CFFTYPES_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CFF_IndexRec */ + /* */ + /* <Description> */ + /* A structure used to model a CFF Index table. */ + /* */ + /* <Fields> */ + /* stream :: The source input stream. */ + /* */ + /* start :: The position of the first index byte in the */ + /* input stream. */ + /* */ + /* count :: The number of elements in the index. */ + /* */ + /* off_size :: The size in bytes of object offsets in index. */ + /* */ + /* data_offset :: The position of first data byte in the index's */ + /* bytes. */ + /* */ + /* data_size :: The size of the data table in this index. */ + /* */ + /* offsets :: A table of element offsets in the index. Must be */ + /* loaded explicitly. */ + /* */ + /* bytes :: If the index is loaded in memory, its bytes. */ + /* */ + typedef struct CFF_IndexRec_ + { + FT_Stream stream; + FT_ULong start; + FT_UInt count; + FT_Byte off_size; + FT_ULong data_offset; + FT_ULong data_size; + + FT_ULong* offsets; + FT_Byte* bytes; + + } CFF_IndexRec, *CFF_Index; + + + typedef struct CFF_EncodingRec_ + { + FT_UInt format; + FT_ULong offset; + + FT_UInt count; + FT_UShort sids [256]; /* avoid dynamic allocations */ + FT_UShort codes[256]; + + } CFF_EncodingRec, *CFF_Encoding; + + + typedef struct CFF_CharsetRec_ + { + + FT_UInt format; + FT_ULong offset; + + FT_UShort* sids; + FT_UShort* cids; /* the inverse mapping of `sids'; only needed */ + /* for CID-keyed fonts */ + FT_UInt max_cid; + FT_UInt num_glyphs; + + } CFF_CharsetRec, *CFF_Charset; + + + typedef struct CFF_FontRecDictRec_ + { + FT_UInt version; + FT_UInt notice; + FT_UInt copyright; + FT_UInt full_name; + FT_UInt family_name; + FT_UInt weight; + FT_Bool is_fixed_pitch; + FT_Fixed italic_angle; + FT_Fixed underline_position; + FT_Fixed underline_thickness; + FT_Int paint_type; + FT_Int charstring_type; + FT_Matrix font_matrix; + FT_ULong units_per_em; /* temporarily used as scaling value also */ + FT_Vector font_offset; + FT_ULong unique_id; + FT_BBox font_bbox; + FT_Pos stroke_width; + FT_ULong charset_offset; + FT_ULong encoding_offset; + FT_ULong charstrings_offset; + FT_ULong private_offset; + FT_ULong private_size; + FT_Long synthetic_base; + FT_UInt embedded_postscript; + + /* these should only be used for the top-level font dictionary */ + FT_UInt cid_registry; + FT_UInt cid_ordering; + FT_Long cid_supplement; + + FT_Long cid_font_version; + FT_Long cid_font_revision; + FT_Long cid_font_type; + FT_ULong cid_count; + FT_ULong cid_uid_base; + FT_ULong cid_fd_array_offset; + FT_ULong cid_fd_select_offset; + FT_UInt cid_font_name; + + } CFF_FontRecDictRec, *CFF_FontRecDict; + + + typedef struct CFF_PrivateRec_ + { + FT_Byte num_blue_values; + FT_Byte num_other_blues; + FT_Byte num_family_blues; + FT_Byte num_family_other_blues; + + FT_Pos blue_values[14]; + FT_Pos other_blues[10]; + FT_Pos family_blues[14]; + FT_Pos family_other_blues[10]; + + FT_Fixed blue_scale; + FT_Pos blue_shift; + FT_Pos blue_fuzz; + FT_Pos standard_width; + FT_Pos standard_height; + + FT_Byte num_snap_widths; + FT_Byte num_snap_heights; + FT_Pos snap_widths[13]; + FT_Pos snap_heights[13]; + FT_Bool force_bold; + FT_Fixed force_bold_threshold; + FT_Int lenIV; + FT_Int language_group; + FT_Fixed expansion_factor; + FT_Long initial_random_seed; + FT_ULong local_subrs_offset; + FT_Pos default_width; + FT_Pos nominal_width; + + } CFF_PrivateRec, *CFF_Private; + + + typedef struct CFF_FDSelectRec_ + { + FT_Byte format; + FT_UInt range_count; + + /* that's the table, taken from the file `as is' */ + FT_Byte* data; + FT_UInt data_size; + + /* small cache for format 3 only */ + FT_UInt cache_first; + FT_UInt cache_count; + FT_Byte cache_fd; + + } CFF_FDSelectRec, *CFF_FDSelect; + + + /* A SubFont packs a font dict and a private dict together. They are */ + /* needed to support CID-keyed CFF fonts. */ + typedef struct CFF_SubFontRec_ + { + CFF_FontRecDictRec font_dict; + CFF_PrivateRec private_dict; + + CFF_IndexRec local_subrs_index; + FT_Byte** local_subrs; /* array of pointers into Local Subrs INDEX data */ + + } CFF_SubFontRec, *CFF_SubFont; + + +#define CFF_MAX_CID_FONTS 256 + + + typedef struct CFF_FontRec_ + { + FT_Stream stream; + FT_Memory memory; + FT_UInt num_faces; + FT_UInt num_glyphs; + + FT_Byte version_major; + FT_Byte version_minor; + FT_Byte header_size; + FT_Byte absolute_offsize; + + + CFF_IndexRec name_index; + CFF_IndexRec top_dict_index; + CFF_IndexRec global_subrs_index; + + CFF_EncodingRec encoding; + CFF_CharsetRec charset; + + CFF_IndexRec charstrings_index; + CFF_IndexRec font_dict_index; + CFF_IndexRec private_index; + CFF_IndexRec local_subrs_index; + + FT_String* font_name; + + /* array of pointers into Global Subrs INDEX data */ + FT_Byte** global_subrs; + + /* array of pointers into String INDEX data stored at string_pool */ + FT_UInt num_strings; + FT_Byte** strings; + FT_Byte* string_pool; + + CFF_SubFontRec top_font; + FT_UInt num_subfonts; + CFF_SubFont subfonts[CFF_MAX_CID_FONTS]; + + CFF_FDSelectRec fd_select; + + /* interface to PostScript hinter */ + PSHinter_Service pshinter; + + /* interface to Postscript Names service */ + FT_Service_PsCMaps psnames; + + /* since version 2.3.0 */ + PS_FontInfoRec* font_info; /* font info dictionary */ + + /* since version 2.3.6 */ + FT_String* registry; + FT_String* ordering; + + } CFF_FontRec, *CFF_Font; + + +FT_END_HEADER + +#endif /* __CFFTYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/ciderrs.h b/uppsrc/plugin/FT_fontsys/src/cid/ciderrs.h new file mode 100644 index 000000000..01813e189 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/ciderrs.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* ciderrs.h */ +/* */ +/* CID error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the CID error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __CIDERRS_H__ +#define __CIDERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX CID_Err_ +#define FT_ERR_BASE FT_Mod_Err_CID + +#include FT_ERRORS_H + +#endif /* __CIDERRS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidgload.c b/uppsrc/plugin/FT_fontsys/src/cid/cidgload.c new file mode 100644 index 000000000..56048d5d7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidgload.c @@ -0,0 +1,442 @@ +/***************************************************************************/ +/* */ +/* cidgload.c */ +/* */ +/* CID-keyed Type1 Glyph Loader (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "cidload.h" +#include "cidgload.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_OUTLINE_H +#include FT_INTERNAL_CALC_H + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidgload + + + FT_CALLBACK_DEF( FT_Error ) + cid_load_glyph( T1_Decoder decoder, + FT_UInt glyph_index ) + { + CID_Face face = (CID_Face)decoder->builder.face; + CID_FaceInfo cid = &face->cid; + FT_Byte* p; + FT_UInt fd_select; + FT_Stream stream = face->cid_stream; + FT_Error error = CID_Err_Ok; + FT_Byte* charstring = 0; + FT_Memory memory = face->root.memory; + FT_ULong glyph_length = 0; + PSAux_Service psaux = (PSAux_Service)face->psaux; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Incremental_InterfaceRec *inc = + face->root.internal->incremental_interface; +#endif + + + FT_TRACE4(( "cid_load_glyph: glyph index %d\n", glyph_index )); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* For incremental fonts get the character data using */ + /* the callback function. */ + if ( inc ) + { + FT_Data glyph_data; + + + error = inc->funcs->get_glyph_data( inc->object, + glyph_index, &glyph_data ); + if ( error ) + goto Exit; + + p = (FT_Byte*)glyph_data.pointer; + fd_select = (FT_UInt)cid_get_offset( &p, (FT_Byte)cid->fd_bytes ); + + if ( glyph_data.length != 0 ) + { + glyph_length = glyph_data.length - cid->fd_bytes; + (void)FT_ALLOC( charstring, glyph_length ); + if ( !error ) + ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes, + glyph_length ); + } + + inc->funcs->free_glyph_data( inc->object, &glyph_data ); + + if ( error ) + goto Exit; + } + + else + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + /* For ordinary fonts read the CID font dictionary index */ + /* and charstring offset from the CIDMap. */ + { + FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes; + FT_ULong off1; + + + if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset + + glyph_index * entry_len ) || + FT_FRAME_ENTER( 2 * entry_len ) ) + goto Exit; + + p = (FT_Byte*)stream->cursor; + fd_select = (FT_UInt) cid_get_offset( &p, (FT_Byte)cid->fd_bytes ); + off1 = (FT_ULong)cid_get_offset( &p, (FT_Byte)cid->gd_bytes ); + p += cid->fd_bytes; + glyph_length = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ) - off1; + FT_FRAME_EXIT(); + + if ( fd_select >= (FT_UInt)cid->num_dicts ) + { + error = CID_Err_Invalid_Offset; + goto Exit; + } + if ( glyph_length == 0 ) + goto Exit; + if ( FT_ALLOC( charstring, glyph_length ) ) + goto Exit; + if ( FT_STREAM_READ_AT( cid->data_offset + off1, + charstring, glyph_length ) ) + goto Exit; + } + + /* Now set up the subrs array and parse the charstrings. */ + { + CID_FaceDict dict; + CID_Subrs cid_subrs = face->subrs + fd_select; + FT_Int cs_offset; + + + /* Set up subrs */ + decoder->num_subrs = cid_subrs->num_subrs; + decoder->subrs = cid_subrs->code; + decoder->subrs_len = 0; + + /* Set up font matrix */ + dict = cid->font_dicts + fd_select; + + decoder->font_matrix = dict->font_matrix; + decoder->font_offset = dict->font_offset; + decoder->lenIV = dict->private_dict.lenIV; + + /* Decode the charstring. */ + + /* Adjustment for seed bytes. */ + cs_offset = ( decoder->lenIV >= 0 ? decoder->lenIV : 0 ); + + /* Decrypt only if lenIV >= 0. */ + if ( decoder->lenIV >= 0 ) + psaux->t1_decrypt( charstring, glyph_length, 4330 ); + + error = decoder->funcs.parse_charstrings( + decoder, charstring + cs_offset, + (FT_Int)glyph_length - cs_offset ); + } + + FT_FREE( charstring ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* Incremental fonts can optionally override the metrics. */ + if ( !error && inc && inc->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + + + metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x ); + metrics.bearing_y = 0; + metrics.advance = FIXED_TO_INT( decoder->builder.advance.x ); + metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y ); + + error = inc->funcs->get_glyph_metrics( inc->object, + glyph_index, FALSE, &metrics ); + + decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x ); + decoder->builder.advance.x = INT_TO_FIXED( metrics.advance ); + decoder->builder.advance.y = INT_TO_FIXED( metrics.advance_v ); + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + Exit: + return error; + } + + +#if 0 + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** *********/ + /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ + /********** *********/ + /********** The following code is in charge of computing *********/ + /********** the maximum advance width of the font. It *********/ + /********** quickly processes each glyph charstring to *********/ + /********** extract the value from either a `sbw' or `seac' *********/ + /********** operator. *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + cid_face_compute_max_advance( CID_Face face, + FT_Int* max_advance ) + { + FT_Error error; + T1_DecoderRec decoder; + FT_Int glyph_index; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + *max_advance = 0; + + /* Initialize load decoder */ + error = psaux->t1_decoder_funcs->init( &decoder, + (FT_Face)face, + 0, /* size */ + 0, /* glyph slot */ + 0, /* glyph names! XXX */ + 0, /* blend == 0 */ + 0, /* hinting == 0 */ + cid_load_glyph ); + if ( error ) + return error; + + /* TODO: initialize decoder.len_buildchar and decoder.buildchar */ + /* if we ever support CID-keyed multiple master fonts */ + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + /* for each glyph, parse the glyph charstring and extract */ + /* the advance width */ + for ( glyph_index = 0; glyph_index < face->root.num_glyphs; + glyph_index++ ) + { + /* now get load the unscaled outline */ + error = cid_load_glyph( &decoder, glyph_index ); + /* ignore the error if one occurred - skip to next glyph */ + } + + *max_advance = FIXED_TO_INT( decoder.builder.advance.x ); + + psaux->t1_decoder_funcs->done( &decoder ); + + return CID_Err_Ok; + } + + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Error ) + cid_slot_load_glyph( FT_GlyphSlot cidglyph, /* CID_GlyphSlot */ + FT_Size cidsize, /* CID_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + CID_GlyphSlot glyph = (CID_GlyphSlot)cidglyph; + FT_Error error; + T1_DecoderRec decoder; + CID_Face face = (CID_Face)cidglyph->face; + FT_Bool hinting; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + FT_Matrix font_matrix; + FT_Vector font_offset; + + + if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) + { + error = CID_Err_Invalid_Argument; + goto Exit; + } + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + glyph->x_scale = cidsize->metrics.x_scale; + glyph->y_scale = cidsize->metrics.y_scale; + + cidglyph->outline.n_points = 0; + cidglyph->outline.n_contours = 0; + + hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && + ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); + + cidglyph->format = FT_GLYPH_FORMAT_OUTLINE; + + error = psaux->t1_decoder_funcs->init( &decoder, + cidglyph->face, + cidsize, + cidglyph, + 0, /* glyph names -- XXX */ + 0, /* blend == 0 */ + hinting, + FT_LOAD_TARGET_MODE( load_flags ), + cid_load_glyph ); + if ( error ) + goto Exit; + + /* TODO: initialize decoder.len_buildchar and decoder.buildchar */ + /* if we ever support CID-keyed multiple master fonts */ + + /* set up the decoder */ + decoder.builder.no_recurse = FT_BOOL( + ( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ) ); + + error = cid_load_glyph( &decoder, glyph_index ); + if ( error ) + goto Exit; + + font_matrix = decoder.font_matrix; + font_offset = decoder.font_offset; + + /* save new glyph tables */ + psaux->t1_decoder_funcs->done( &decoder ); + + /* now set the metrics -- this is rather simple, as */ + /* the left side bearing is the xMin, and the top side */ + /* bearing the yMax */ + cidglyph->outline.flags &= FT_OUTLINE_OWNER; + cidglyph->outline.flags |= FT_OUTLINE_REVERSE_FILL; + + /* for composite glyphs, return only left side bearing and */ + /* advance width */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + FT_Slot_Internal internal = cidglyph->internal; + + + cidglyph->metrics.horiBearingX = + FIXED_TO_INT( decoder.builder.left_bearing.x ); + cidglyph->metrics.horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + + internal->glyph_matrix = font_matrix; + internal->glyph_delta = font_offset; + internal->glyph_transformed = 1; + } + else + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &cidglyph->metrics; + FT_Vector advance; + + + /* copy the _unscaled_ advance width */ + metrics->horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + cidglyph->linearHoriAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + cidglyph->internal->glyph_transformed = 0; + + /* make up vertical ones */ + metrics->vertAdvance = ( face->cid.font_bbox.yMax - + face->cid.font_bbox.yMin ) >> 16; + cidglyph->linearVertAdvance = metrics->vertAdvance; + + cidglyph->format = FT_GLYPH_FORMAT_OUTLINE; + + if ( cidsize->metrics.y_ppem < 24 ) + cidglyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; + + /* apply the font matrix */ + FT_Outline_Transform( &cidglyph->outline, &font_matrix ); + + FT_Outline_Translate( &cidglyph->outline, + font_offset.x, + font_offset.y ); + + advance.x = metrics->horiAdvance; + advance.y = 0; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->horiAdvance = advance.x + font_offset.x; + + advance.x = 0; + advance.y = metrics->vertAdvance; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->vertAdvance = advance.y + font_offset.y; + + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + /* scale the outline and the metrics */ + FT_Int n; + FT_Outline* cur = decoder.builder.base; + FT_Vector* vec = cur->points; + FT_Fixed x_scale = glyph->x_scale; + FT_Fixed y_scale = glyph->y_scale; + + + /* First of all, scale the points */ + if ( !hinting || !decoder.builder.hints_funcs ) + for ( n = cur->n_points; n > 0; n--, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* Then scale the metrics */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the other metrics */ + FT_Outline_Get_CBox( &cidglyph->outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + /* make up vertical ones */ + ft_synthesize_vertical_metrics( metrics, + metrics->vertAdvance ); + } + } + + Exit: + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidgload.h b/uppsrc/plugin/FT_fontsys/src/cid/cidgload.h new file mode 100644 index 000000000..e53771580 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidgload.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* cidgload.h */ +/* */ +/* OpenType Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDGLOAD_H__ +#define __CIDGLOAD_H__ + + +#include <freetype/ft2build.h> +#include "cidobjs.h" + + +FT_BEGIN_HEADER + + +#if 0 + + /* Compute the maximum advance width of a font through quick parsing */ + FT_LOCAL( FT_Error ) + cid_face_compute_max_advance( CID_Face face, + FT_Int* max_advance ); + +#endif /* 0 */ + + FT_LOCAL( FT_Error ) + cid_slot_load_glyph( FT_GlyphSlot glyph, /* CID_Glyph_Slot */ + FT_Size size, /* CID_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __CIDGLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidload.c b/uppsrc/plugin/FT_fontsys/src/cid/cidload.c new file mode 100644 index 000000000..16a76b363 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidload.c @@ -0,0 +1,672 @@ +/***************************************************************************/ +/* */ +/* cidload.c */ +/* */ +/* CID-keyed Type1 font loader (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_TYPE1_TYPES_H + +#include "cidload.h" + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidload + + + /* read a single offset */ + FT_LOCAL_DEF( FT_Long ) + cid_get_offset( FT_Byte* *start, + FT_Byte offsize ) + { + FT_Long result; + FT_Byte* p = *start; + + + for ( result = 0; offsize > 0; offsize-- ) + { + result <<= 8; + result |= *p++; + } + + *start = p; + return result; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 1 SYMBOL PARSING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + cid_load_keyword( CID_Face face, + CID_Loader* loader, + const T1_Field keyword ) + { + FT_Error error; + CID_Parser* parser = &loader->parser; + FT_Byte* object; + void* dummy_object; + CID_FaceInfo cid = &face->cid; + + + /* if the keyword has a dedicated callback, call it */ + if ( keyword->type == T1_FIELD_TYPE_CALLBACK ) + { + keyword->reader( (FT_Face)face, parser ); + error = parser->root.error; + goto Exit; + } + + /* we must now compute the address of our target object */ + switch ( keyword->location ) + { + case T1_FIELD_LOCATION_CID_INFO: + object = (FT_Byte*)cid; + break; + + case T1_FIELD_LOCATION_FONT_INFO: + object = (FT_Byte*)&cid->font_info; + break; + + case T1_FIELD_LOCATION_FONT_EXTRA: + object = (FT_Byte*)&face->font_extra; + break; + + case T1_FIELD_LOCATION_BBOX: + object = (FT_Byte*)&cid->font_bbox; + break; + + default: + { + CID_FaceDict dict; + + + if ( parser->num_dict < 0 ) + { + FT_ERROR(( "cid_load_keyword: invalid use of `%s'\n", + keyword->ident )); + error = CID_Err_Syntax_Error; + goto Exit; + } + + dict = cid->font_dicts + parser->num_dict; + switch ( keyword->location ) + { + case T1_FIELD_LOCATION_PRIVATE: + object = (FT_Byte*)&dict->private_dict; + break; + + default: + object = (FT_Byte*)dict; + } + } + } + + dummy_object = object; + + /* now, load the keyword data in the object's field(s) */ + if ( keyword->type == T1_FIELD_TYPE_INTEGER_ARRAY || + keyword->type == T1_FIELD_TYPE_FIXED_ARRAY ) + error = cid_parser_load_field_table( &loader->parser, keyword, + &dummy_object ); + else + error = cid_parser_load_field( &loader->parser, + keyword, &dummy_object ); + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + parse_font_matrix( CID_Face face, + CID_Parser* parser ) + { + FT_Matrix* matrix; + FT_Vector* offset; + CID_FaceDict dict; + FT_Face root = (FT_Face)&face->root; + FT_Fixed temp[6]; + FT_Fixed temp_scale; + + + if ( parser->num_dict >= 0 ) + { + dict = face->cid.font_dicts + parser->num_dict; + matrix = &dict->font_matrix; + offset = &dict->font_offset; + + (void)cid_parser_to_fixed_array( parser, 6, temp, 3 ); + + temp_scale = FT_ABS( temp[3] ); + + /* Set units per EM based on FontMatrix values. We set the value to */ + /* `1000/temp_scale', because temp_scale was already multiplied by */ + /* 1000 (in `t1_tofixed', from psobjs.c). */ + root->units_per_EM = (FT_UShort)( FT_DivFix( 0x10000L, + FT_DivFix( temp_scale, 1000 ) ) ); + + /* we need to scale the values by 1.0/temp[3] */ + if ( temp_scale != 0x10000L ) + { + temp[0] = FT_DivFix( temp[0], temp_scale ); + temp[1] = FT_DivFix( temp[1], temp_scale ); + temp[2] = FT_DivFix( temp[2], temp_scale ); + temp[4] = FT_DivFix( temp[4], temp_scale ); + temp[5] = FT_DivFix( temp[5], temp_scale ); + temp[3] = 0x10000L; + } + + matrix->xx = temp[0]; + matrix->yx = temp[1]; + matrix->xy = temp[2]; + matrix->yy = temp[3]; + + /* note that the font offsets are expressed in integer font units */ + offset->x = temp[4] >> 16; + offset->y = temp[5] >> 16; + } + + return CID_Err_Ok; /* this is a callback function; */ + /* we must return an error code */ + } + + + FT_CALLBACK_DEF( FT_Error ) + parse_fd_array( CID_Face face, + CID_Parser* parser ) + { + CID_FaceInfo cid = &face->cid; + FT_Memory memory = face->root.memory; + FT_Error error = CID_Err_Ok; + FT_Long num_dicts; + + + num_dicts = cid_parser_to_int( parser ); + + if ( !cid->font_dicts ) + { + FT_Int n; + + + if ( FT_NEW_ARRAY( cid->font_dicts, num_dicts ) ) + goto Exit; + + cid->num_dicts = (FT_UInt)num_dicts; + + /* don't forget to set a few defaults */ + for ( n = 0; n < cid->num_dicts; n++ ) + { + CID_FaceDict dict = cid->font_dicts + n; + + + /* default value for lenIV */ + dict->private_dict.lenIV = 4; + } + } + + Exit: + return error; + } + + + /* by mistake, `expansion_factor' appears both in PS_PrivateRec */ + /* and CID_FaceDictRec (both are public header files and can't */ + /* changed); we simply copy the value */ + + FT_CALLBACK_DEF( FT_Error ) + parse_expansion_factor( CID_Face face, + CID_Parser* parser ) + { + CID_FaceDict dict; + + + if ( parser->num_dict >= 0 ) + { + dict = face->cid.font_dicts + parser->num_dict; + + dict->expansion_factor = cid_parser_to_fixed( parser, 0 ); + dict->private_dict.expansion_factor = dict->expansion_factor; + } + + return CID_Err_Ok; + } + + + static + const T1_FieldRec cid_field_records[] = + { + +#include "cidtoken.h" + + T1_FIELD_CALLBACK( "FDArray", parse_fd_array, 0 ) + T1_FIELD_CALLBACK( "FontMatrix", parse_font_matrix, 0 ) + T1_FIELD_CALLBACK( "ExpansionFactor", parse_expansion_factor, 0 ) + + { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } + }; + + + static FT_Error + cid_parse_dict( CID_Face face, + CID_Loader* loader, + FT_Byte* base, + FT_Long size ) + { + CID_Parser* parser = &loader->parser; + + + parser->root.cursor = base; + parser->root.limit = base + size; + parser->root.error = CID_Err_Ok; + + { + FT_Byte* cur = base; + FT_Byte* limit = cur + size; + + + for (;;) + { + FT_Byte* newlimit; + + + parser->root.cursor = cur; + cid_parser_skip_spaces( parser ); + + if ( parser->root.cursor >= limit ) + newlimit = limit - 1 - 17; + else + newlimit = parser->root.cursor - 17; + + /* look for `%ADOBeginFontDict' */ + for ( ; cur < newlimit; cur++ ) + { + if ( *cur == '%' && + ft_strncmp( (char*)cur, "%ADOBeginFontDict", 17 ) == 0 ) + { + /* if /FDArray was found, then cid->num_dicts is > 0, and */ + /* we can start increasing parser->num_dict */ + if ( face->cid.num_dicts > 0 ) + parser->num_dict++; + } + } + + cur = parser->root.cursor; + /* no error can occur in cid_parser_skip_spaces */ + if ( cur >= limit ) + break; + + cid_parser_skip_PS_token( parser ); + if ( parser->root.cursor >= limit || parser->root.error ) + break; + + /* look for immediates */ + if ( *cur == '/' && cur + 2 < limit ) + { + FT_PtrDist len; + + + cur++; + len = parser->root.cursor - cur; + + if ( len > 0 && len < 22 ) + { + /* now compare the immediate name to the keyword table */ + T1_Field keyword = (T1_Field)cid_field_records; + + + for (;;) + { + FT_Byte* name; + + + name = (FT_Byte*)keyword->ident; + if ( !name ) + break; + + if ( cur[0] == name[0] && + len == (FT_PtrDist)ft_strlen( (const char*)name ) ) + { + FT_PtrDist n; + + + for ( n = 1; n < len; n++ ) + if ( cur[n] != name[n] ) + break; + + if ( n >= len ) + { + /* we found it - run the parsing callback */ + parser->root.error = cid_load_keyword( face, + loader, + keyword ); + if ( parser->root.error ) + return parser->root.error; + break; + } + } + keyword++; + } + } + } + + cur = parser->root.cursor; + } + } + return parser->root.error; + } + + + /* read the subrmap and the subrs of each font dict */ + static FT_Error + cid_read_subrs( CID_Face face ) + { + CID_FaceInfo cid = &face->cid; + FT_Memory memory = face->root.memory; + FT_Stream stream = face->cid_stream; + FT_Error error; + FT_Int n; + CID_Subrs subr; + FT_UInt max_offsets = 0; + FT_ULong* offsets = 0; + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + if ( FT_NEW_ARRAY( face->subrs, cid->num_dicts ) ) + goto Exit; + + subr = face->subrs; + for ( n = 0; n < cid->num_dicts; n++, subr++ ) + { + CID_FaceDict dict = cid->font_dicts + n; + FT_Int lenIV = dict->private_dict.lenIV; + FT_UInt count, num_subrs = dict->num_subrs; + FT_ULong data_len; + FT_Byte* p; + + + /* reallocate offsets array if needed */ + if ( num_subrs + 1 > max_offsets ) + { + FT_UInt new_max = FT_PAD_CEIL( num_subrs + 1, 4 ); + + + if ( FT_RENEW_ARRAY( offsets, max_offsets, new_max ) ) + goto Fail; + + max_offsets = new_max; + } + + /* read the subrmap's offsets */ + if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) || + FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) ) + goto Fail; + + p = (FT_Byte*)stream->cursor; + for ( count = 0; count <= num_subrs; count++ ) + offsets[count] = cid_get_offset( &p, (FT_Byte)dict->sd_bytes ); + + FT_FRAME_EXIT(); + + /* now, compute the size of subrs charstrings, */ + /* allocate, and read them */ + data_len = offsets[num_subrs] - offsets[0]; + + if ( FT_NEW_ARRAY( subr->code, num_subrs + 1 ) || + FT_ALLOC( subr->code[0], data_len ) ) + goto Fail; + + if ( FT_STREAM_SEEK( cid->data_offset + offsets[0] ) || + FT_STREAM_READ( subr->code[0], data_len ) ) + goto Fail; + + /* set up pointers */ + for ( count = 1; count <= num_subrs; count++ ) + { + FT_ULong len; + + + len = offsets[count] - offsets[count - 1]; + subr->code[count] = subr->code[count - 1] + len; + } + + /* decrypt subroutines, but only if lenIV >= 0 */ + if ( lenIV >= 0 ) + { + for ( count = 0; count < num_subrs; count++ ) + { + FT_ULong len; + + + len = offsets[count + 1] - offsets[count]; + psaux->t1_decrypt( subr->code[count], len, 4330 ); + } + } + + subr->num_subrs = num_subrs; + } + + Exit: + FT_FREE( offsets ); + return error; + + Fail: + if ( face->subrs ) + { + for ( n = 0; n < cid->num_dicts; n++ ) + { + if ( face->subrs[n].code ) + FT_FREE( face->subrs[n].code[0] ); + + FT_FREE( face->subrs[n].code ); + } + FT_FREE( face->subrs ); + } + goto Exit; + } + + + static void + t1_init_loader( CID_Loader* loader, + CID_Face face ) + { + FT_UNUSED( face ); + + FT_MEM_ZERO( loader, sizeof ( *loader ) ); + } + + + static void + t1_done_loader( CID_Loader* loader ) + { + CID_Parser* parser = &loader->parser; + + + /* finalize parser */ + cid_parser_done( parser ); + } + + + static FT_Error + cid_hex_to_binary( FT_Byte* data, + FT_Long data_len, + FT_ULong offset, + CID_Face face ) + { + FT_Stream stream = face->root.stream; + FT_Error error; + + FT_Byte buffer[256]; + FT_Byte *p, *plimit; + FT_Byte *d, *dlimit; + FT_Byte val; + + FT_Bool upper_nibble, done; + + + if ( FT_STREAM_SEEK( offset ) ) + goto Exit; + + d = data; + dlimit = d + data_len; + p = buffer; + plimit = p; + + upper_nibble = 1; + done = 0; + + while ( d < dlimit ) + { + if ( p >= plimit ) + { + FT_ULong oldpos = FT_STREAM_POS(); + FT_ULong size = stream->size - oldpos; + + + if ( size == 0 ) + { + error = CID_Err_Syntax_Error; + goto Exit; + } + + if ( FT_STREAM_READ( buffer, 256 > size ? size : 256 ) ) + goto Exit; + p = buffer; + plimit = p + FT_STREAM_POS() - oldpos; + } + + if ( ft_isdigit( *p ) ) + val = (FT_Byte)( *p - '0' ); + else if ( *p >= 'a' && *p <= 'f' ) + val = (FT_Byte)( *p - 'a' ); + else if ( *p >= 'A' && *p <= 'F' ) + val = (FT_Byte)( *p - 'A' + 10 ); + else if ( *p == ' ' || + *p == '\t' || + *p == '\r' || + *p == '\n' || + *p == '\f' || + *p == '\0' ) + { + p++; + continue; + } + else if ( *p == '>' ) + { + val = 0; + done = 1; + } + else + { + error = CID_Err_Syntax_Error; + goto Exit; + } + + if ( upper_nibble ) + *d = (FT_Byte)( val << 4 ); + else + { + *d = (FT_Byte)( *d + val ); + d++; + } + + upper_nibble = (FT_Byte)( 1 - upper_nibble ); + + if ( done ) + break; + + p++; + } + + error = CID_Err_Ok; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + cid_face_open( CID_Face face, + FT_Int face_index ) + { + CID_Loader loader; + CID_Parser* parser; + FT_Memory memory = face->root.memory; + FT_Error error; + + + t1_init_loader( &loader, face ); + + parser = &loader.parser; + error = cid_parser_new( parser, face->root.stream, face->root.memory, + (PSAux_Service)face->psaux ); + if ( error ) + goto Exit; + + error = cid_parse_dict( face, &loader, + parser->postscript, + parser->postscript_len ); + if ( error ) + goto Exit; + + if ( face_index < 0 ) + goto Exit; + + if ( FT_NEW( face->cid_stream ) ) + goto Exit; + + if ( parser->binary_length ) + { + /* we must convert the data section from hexadecimal to binary */ + if ( FT_ALLOC( face->binary_data, parser->binary_length ) || + cid_hex_to_binary( face->binary_data, parser->binary_length, + parser->data_offset, face ) ) + goto Exit; + + FT_Stream_OpenMemory( face->cid_stream, + face->binary_data, parser->binary_length ); + face->cid.data_offset = 0; + } + else + { + *face->cid_stream = *face->root.stream; + face->cid.data_offset = loader.parser.data_offset; + } + + error = cid_read_subrs( face ); + + Exit: + t1_done_loader( &loader ); + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidload.h b/uppsrc/plugin/FT_fontsys/src/cid/cidload.h new file mode 100644 index 000000000..6c0bd9793 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidload.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* cidload.h */ +/* */ +/* CID-keyed Type1 font loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDLOAD_H__ +#define __CIDLOAD_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_STREAM_H +#include "cidparse.h" + + +FT_BEGIN_HEADER + + + typedef struct CID_Loader_ + { + CID_Parser parser; /* parser used to read the stream */ + FT_Int num_chars; /* number of characters in encoding */ + + } CID_Loader; + + + FT_LOCAL( FT_Long ) + cid_get_offset( FT_Byte** start, + FT_Byte offsize ); + + FT_LOCAL( FT_Error ) + cid_face_open( CID_Face face, + FT_Int face_index ); + + +FT_END_HEADER + +#endif /* __CIDLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidobjs.c b/uppsrc/plugin/FT_fontsys/src/cid/cidobjs.c new file mode 100644 index 000000000..0ee67eb56 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidobjs.c @@ -0,0 +1,482 @@ +/***************************************************************************/ +/* */ +/* cidobjs.c */ +/* */ +/* CID objects manager (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include "cidgload.h" +#include "cidload.h" + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidobjs + + + /*************************************************************************/ + /* */ + /* SLOT FUNCTIONS */ + /* */ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + cid_slot_done( FT_GlyphSlot slot ) + { + slot->internal->glyph_hints = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + cid_slot_init( FT_GlyphSlot slot ) + { + CID_Face face; + PSHinter_Service pshinter; + + + face = (CID_Face)slot->face; + pshinter = (PSHinter_Service)face->pshinter; + + if ( pshinter ) + { + FT_Module module; + + + module = FT_Get_Module( slot->face->driver->root.library, + "pshinter" ); + if ( module ) + { + T1_Hints_Funcs funcs; + + + funcs = pshinter->get_t1_funcs( module ); + slot->internal->glyph_hints = (void*)funcs; + } + } + + return 0; + } + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + static PSH_Globals_Funcs + cid_size_get_globals_funcs( CID_Size size ) + { + CID_Face face = (CID_Face)size->root.face; + PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; + FT_Module module; + + + module = FT_Get_Module( size->root.face->driver->root.library, + "pshinter" ); + return ( module && pshinter && pshinter->get_globals_funcs ) + ? pshinter->get_globals_funcs( module ) + : 0; + } + + + FT_LOCAL_DEF( void ) + cid_size_done( FT_Size cidsize ) /* CID_Size */ + { + CID_Size size = (CID_Size)cidsize; + + + if ( cidsize->internal ) + { + PSH_Globals_Funcs funcs; + + + funcs = cid_size_get_globals_funcs( size ); + if ( funcs ) + funcs->destroy( (PSH_Globals)cidsize->internal ); + + cidsize->internal = 0; + } + } + + + FT_LOCAL_DEF( FT_Error ) + cid_size_init( FT_Size cidsize ) /* CID_Size */ + { + CID_Size size = (CID_Size)cidsize; + FT_Error error = CID_Err_Ok; + PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size ); + + + if ( funcs ) + { + PSH_Globals globals; + CID_Face face = (CID_Face)cidsize->face; + CID_FaceDict dict = face->cid.font_dicts + face->root.face_index; + PS_Private priv = &dict->private_dict; + + + error = funcs->create( cidsize->face->memory, priv, &globals ); + if ( !error ) + cidsize->internal = (FT_Size_Internal)(void*)globals; + } + + return error; + } + + + FT_LOCAL( FT_Error ) + cid_size_request( FT_Size size, + FT_Size_Request req ) + { + PSH_Globals_Funcs funcs; + + + FT_Request_Metrics( size->face, req ); + + funcs = cid_size_get_globals_funcs( (CID_Size)size ); + + if ( funcs ) + funcs->set_scale( (PSH_Globals)size->internal, + size->metrics.x_scale, + size->metrics.y_scale, + 0, 0 ); + + return CID_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* FACE FUNCTIONS */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_face_done */ + /* */ + /* <Description> */ + /* Finalizes a given face object. */ + /* */ + /* <Input> */ + /* face :: A pointer to the face object to destroy. */ + /* */ + FT_LOCAL_DEF( void ) + cid_face_done( FT_Face cidface ) /* CID_Face */ + { + CID_Face face = (CID_Face)cidface; + FT_Memory memory; + CID_FaceInfo cid; + PS_FontInfo info; + + + if ( !face ) + return; + + cid = &face->cid; + info = &cid->font_info; + memory = cidface->memory; + + /* release subrs */ + if ( face->subrs ) + { + FT_Int n; + + + for ( n = 0; n < cid->num_dicts; n++ ) + { + CID_Subrs subr = face->subrs + n; + + + if ( subr->code ) + { + FT_FREE( subr->code[0] ); + FT_FREE( subr->code ); + } + } + + FT_FREE( face->subrs ); + } + + /* release FontInfo strings */ + FT_FREE( info->version ); + FT_FREE( info->notice ); + FT_FREE( info->full_name ); + FT_FREE( info->family_name ); + FT_FREE( info->weight ); + + /* release font dictionaries */ + FT_FREE( cid->font_dicts ); + cid->num_dicts = 0; + + /* release other strings */ + FT_FREE( cid->cid_font_name ); + FT_FREE( cid->registry ); + FT_FREE( cid->ordering ); + + cidface->family_name = 0; + cidface->style_name = 0; + + FT_FREE( face->binary_data ); + FT_FREE( face->cid_stream ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_face_init */ + /* */ + /* <Description> */ + /* Initializes a given CID face object. */ + /* */ + /* <Input> */ + /* stream :: The source font stream. */ + /* */ + /* face_index :: The index of the font face in the resource. */ + /* */ + /* num_params :: Number of additional generic parameters. Ignored. */ + /* */ + /* params :: Additional generic parameters. Ignored. */ + /* */ + /* <InOut> */ + /* face :: The newly built face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + cid_face_init( FT_Stream stream, + FT_Face cidface, /* CID_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + CID_Face face = (CID_Face)cidface; + FT_Error error; + PSAux_Service psaux; + PSHinter_Service pshinter; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( stream ); + + + cidface->num_faces = 1; + + psaux = (PSAux_Service)face->psaux; + if ( !psaux ) + { + psaux = (PSAux_Service)FT_Get_Module_Interface( + FT_FACE_LIBRARY( face ), "psaux" ); + + face->psaux = psaux; + } + + pshinter = (PSHinter_Service)face->pshinter; + if ( !pshinter ) + { + pshinter = (PSHinter_Service)FT_Get_Module_Interface( + FT_FACE_LIBRARY( face ), "pshinter" ); + + face->pshinter = pshinter; + } + + /* open the tokenizer; this will also check the font format */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + error = cid_face_open( face, face_index ); + if ( error ) + goto Exit; + + /* if we just wanted to check the format, leave successfully now */ + if ( face_index < 0 ) + goto Exit; + + /* check the face index */ + /* XXX: handle CID fonts with more than a single face */ + if ( face_index != 0 ) + { + FT_ERROR(( "cid_face_init: invalid face index\n" )); + error = CID_Err_Invalid_Argument; + goto Exit; + } + + /* now load the font program into the face object */ + + /* initialize the face object fields */ + + /* set up root face fields */ + { + CID_FaceInfo cid = &face->cid; + PS_FontInfo info = &cid->font_info; + + + cidface->num_glyphs = cid->cid_count; + cidface->num_charmaps = 0; + + cidface->face_index = face_index; + cidface->face_flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ + FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ + FT_FACE_FLAG_HINTER; /* has native hinter */ + + if ( info->is_fixed_pitch ) + cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* XXX: TODO: add kerning with .afm support */ + + /* get style name -- be careful, some broken fonts only */ + /* have a /FontName dictionary entry! */ + cidface->family_name = info->family_name; + /* assume "Regular" style if we don't know better */ + cidface->style_name = (char *)"Regular"; + if ( cidface->family_name ) + { + char* full = info->full_name; + char* family = cidface->family_name; + + + if ( full ) + { + while ( *full ) + { + if ( *full == *family ) + { + family++; + full++; + } + else + { + if ( *full == ' ' || *full == '-' ) + full++; + else if ( *family == ' ' || *family == '-' ) + family++; + else + { + if ( !*family ) + cidface->style_name = full; + break; + } + } + } + } + } + else + { + /* do we have a `/FontName'? */ + if ( cid->cid_font_name ) + cidface->family_name = cid->cid_font_name; + } + + /* compute style flags */ + cidface->style_flags = 0; + if ( info->italic_angle ) + cidface->style_flags |= FT_STYLE_FLAG_ITALIC; + if ( info->weight ) + { + if ( !ft_strcmp( info->weight, "Bold" ) || + !ft_strcmp( info->weight, "Black" ) ) + cidface->style_flags |= FT_STYLE_FLAG_BOLD; + } + + /* no embedded bitmap support */ + cidface->num_fixed_sizes = 0; + cidface->available_sizes = 0; + + cidface->bbox.xMin = cid->font_bbox.xMin >> 16; + cidface->bbox.yMin = cid->font_bbox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16; + cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16; + + if ( !cidface->units_per_EM ) + cidface->units_per_EM = 1000; + + cidface->ascender = (FT_Short)( cidface->bbox.yMax ); + cidface->descender = (FT_Short)( cidface->bbox.yMin ); + + cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 ); + if ( cidface->height < cidface->ascender - cidface->descender ) + cidface->height = (FT_Short)( cidface->ascender - cidface->descender ); + + cidface->underline_position = (FT_Short)info->underline_position; + cidface->underline_thickness = (FT_Short)info->underline_thickness; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_driver_init */ + /* */ + /* <Description> */ + /* Initializes a given CID driver object. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target driver object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + cid_driver_init( FT_Module driver ) + { + FT_UNUSED( driver ); + + return CID_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_driver_done */ + /* */ + /* <Description> */ + /* Finalizes a given CID driver. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target CID driver. */ + /* */ + FT_LOCAL_DEF( void ) + cid_driver_done( FT_Module driver ) + { + FT_UNUSED( driver ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidobjs.h b/uppsrc/plugin/FT_fontsys/src/cid/cidobjs.h new file mode 100644 index 000000000..bf626bba8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidobjs.h @@ -0,0 +1,154 @@ +/***************************************************************************/ +/* */ +/* cidobjs.h */ +/* */ +/* CID objects manager (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDOBJS_H__ +#define __CIDOBJS_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + + /* The following structures must be defined by the hinter */ + typedef struct CID_Size_Hints_ CID_Size_Hints; + typedef struct CID_Glyph_Hints_ CID_Glyph_Hints; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_Driver */ + /* */ + /* <Description> */ + /* A handle to a Type 1 driver object. */ + /* */ + typedef struct CID_DriverRec_* CID_Driver; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_Size */ + /* */ + /* <Description> */ + /* A handle to a Type 1 size object. */ + /* */ + typedef struct CID_SizeRec_* CID_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to a Type 1 glyph slot object. */ + /* */ + typedef struct CID_GlyphSlotRec_* CID_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_CharMap */ + /* */ + /* <Description> */ + /* A handle to a Type 1 character mapping object. */ + /* */ + /* <Note> */ + /* The Type 1 format doesn't use a charmap but an encoding table. */ + /* The driver is responsible for making up charmap objects */ + /* corresponding to these tables. */ + /* */ + typedef struct CID_CharMapRec_* CID_CharMap; + + + /*************************************************************************/ + /* */ + /* HERE BEGINS THE TYPE 1 SPECIFIC STUFF */ + /* */ + /*************************************************************************/ + + + typedef struct CID_SizeRec_ + { + FT_SizeRec root; + FT_Bool valid; + + } CID_SizeRec; + + + typedef struct CID_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + + FT_Bool hint; + FT_Bool scaled; + + FT_Fixed x_scale; + FT_Fixed y_scale; + + } CID_GlyphSlotRec; + + + FT_LOCAL( void ) + cid_slot_done( FT_GlyphSlot slot ); + + FT_LOCAL( FT_Error ) + cid_slot_init( FT_GlyphSlot slot ); + + + FT_LOCAL( void ) + cid_size_done( FT_Size size ); /* CID_Size */ + + FT_LOCAL( FT_Error ) + cid_size_init( FT_Size size ); /* CID_Size */ + + FT_LOCAL( FT_Error ) + cid_size_request( FT_Size size, /* CID_Size */ + FT_Size_Request req ); + + FT_LOCAL( FT_Error ) + cid_face_init( FT_Stream stream, + FT_Face face, /* CID_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + cid_face_done( FT_Face face ); /* CID_Face */ + + + FT_LOCAL( FT_Error ) + cid_driver_init( FT_Module driver ); + + FT_LOCAL( void ) + cid_driver_done( FT_Module driver ); + + +FT_END_HEADER + +#endif /* __CIDOBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidparse.c b/uppsrc/plugin/FT_fontsys/src/cid/cidparse.c new file mode 100644 index 000000000..79d97d01e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidparse.c @@ -0,0 +1,225 @@ +/***************************************************************************/ +/* */ +/* cidparse.c */ +/* */ +/* CID-keyed Type1 parser (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H + +#include "cidparse.h" + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidparse + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** INPUT STREAM PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + cid_parser_new( CID_Parser* parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ) + { + FT_Error error; + FT_ULong base_offset, offset, ps_len; + FT_Byte *cur, *limit; + FT_Byte *arg1, *arg2; + + + FT_MEM_ZERO( parser, sizeof ( *parser ) ); + psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); + + parser->stream = stream; + + base_offset = FT_STREAM_POS(); + + /* first of all, check the font format in the header */ + if ( FT_FRAME_ENTER( 31 ) ) + goto Exit; + + if ( ft_strncmp( (char *)stream->cursor, + "%!PS-Adobe-3.0 Resource-CIDFont", 31 ) ) + { + FT_TRACE2(( "[not a valid CID-keyed font]\n" )); + error = CID_Err_Unknown_File_Format; + } + + FT_FRAME_EXIT(); + if ( error ) + goto Exit; + + Again: + /* now, read the rest of the file until we find */ + /* `StartData' or `/sfnts' */ + { + FT_Byte buffer[256 + 10]; + FT_Long read_len = 256 + 10; /* same as signed FT_Stream->size */ + FT_Byte* p = buffer; + + + for ( offset = FT_STREAM_POS(); ; offset += 256 ) + { + FT_Long stream_len; /* same as signed FT_Stream->size */ + + + stream_len = stream->size - FT_STREAM_POS(); + if ( stream_len == 0 ) + { + FT_TRACE2(( "cid_parser_new: no `StartData' keyword found\n" )); + error = CID_Err_Unknown_File_Format; + goto Exit; + } + + read_len = FT_MIN( read_len, stream_len ); + if ( FT_STREAM_READ( p, read_len ) ) + goto Exit; + + if ( read_len < 256 ) + p[read_len] = '\0'; + + limit = p + read_len - 10; + + for ( p = buffer; p < limit; p++ ) + { + if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 ) + { + /* save offset of binary data after `StartData' */ + offset += p - buffer + 10; + goto Found; + } + else if ( p[1] == 's' && ft_strncmp( (char*)p, "/sfnts", 6 ) == 0 ) + { + offset += p - buffer + 7; + goto Found; + } + } + + FT_MEM_MOVE( buffer, p, 10 ); + read_len = 256; + p = buffer + 10; + } + } + + Found: + /* We have found the start of the binary data or the `/sfnts' token. */ + /* Now rewind and extract the frame corresponding to this PostScript */ + /* section. */ + + ps_len = offset - base_offset; + if ( FT_STREAM_SEEK( base_offset ) || + FT_FRAME_EXTRACT( ps_len, parser->postscript ) ) + goto Exit; + + parser->data_offset = offset; + parser->postscript_len = ps_len; + parser->root.base = parser->postscript; + parser->root.cursor = parser->postscript; + parser->root.limit = parser->root.cursor + ps_len; + parser->num_dict = -1; + + /* Finally, we check whether `StartData' or `/sfnts' was real -- */ + /* it could be in a comment or string. We also get the arguments */ + /* of `StartData' to find out whether the data is represented in */ + /* binary or hex format. */ + + arg1 = parser->root.cursor; + cid_parser_skip_PS_token( parser ); + cid_parser_skip_spaces ( parser ); + arg2 = parser->root.cursor; + cid_parser_skip_PS_token( parser ); + cid_parser_skip_spaces ( parser ); + + limit = parser->root.limit; + cur = parser->root.cursor; + + while ( cur < limit ) + { + if ( parser->root.error ) + { + error = parser->root.error; + goto Exit; + } + + if ( cur[0] == 'S' && ft_strncmp( (char*)cur, "StartData", 9 ) == 0 ) + { + if ( ft_strncmp( (char*)arg1, "(Hex)", 5 ) == 0 ) + parser->binary_length = ft_atol( (const char *)arg2 ); + + limit = parser->root.limit; + cur = parser->root.cursor; + goto Exit; + } + else if ( cur[1] == 's' && ft_strncmp( (char*)cur, "/sfnts", 6 ) == 0 ) + { + FT_TRACE2(( "cid_parser_new: cannot handle Type 11 fonts\n" )); + error = CID_Err_Unknown_File_Format; + goto Exit; + } + + cid_parser_skip_PS_token( parser ); + cid_parser_skip_spaces ( parser ); + arg1 = arg2; + arg2 = cur; + cur = parser->root.cursor; + } + + /* we haven't found the correct `StartData'; go back and continue */ + /* searching */ + FT_FRAME_RELEASE( parser->postscript ); + if ( !FT_STREAM_SEEK( offset ) ) + goto Again; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + cid_parser_done( CID_Parser* parser ) + { + /* always free the private dictionary */ + if ( parser->postscript ) + { + FT_Stream stream = parser->stream; + + + FT_FRAME_RELEASE( parser->postscript ); + } + parser->root.funcs.done( &parser->root ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidparse.h b/uppsrc/plugin/FT_fontsys/src/cid/cidparse.h new file mode 100644 index 000000000..d4437cdb5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidparse.h @@ -0,0 +1,123 @@ +/***************************************************************************/ +/* */ +/* cidparse.h */ +/* */ +/* CID-keyed Type1 parser (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDPARSE_H__ +#define __CIDPARSE_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_Parser */ + /* */ + /* <Description> */ + /* A CID_Parser is an object used to parse a Type 1 fonts very */ + /* quickly. */ + /* */ + /* <Fields> */ + /* root :: The root PS_ParserRec fields. */ + /* */ + /* stream :: The current input stream. */ + /* */ + /* postscript :: A pointer to the data to be parsed. */ + /* */ + /* postscript_len :: The length of the data to be parsed. */ + /* */ + /* data_offset :: The start position of the binary data (i.e., the */ + /* end of the data to be parsed. */ + /* */ + /* binary_length :: The length of the data after the `StartData' */ + /* command if the data format is hexadecimal. */ + /* */ + /* cid :: A structure which holds the information about */ + /* the current font. */ + /* */ + /* num_dict :: The number of font dictionaries. */ + /* */ + typedef struct CID_Parser_ + { + PS_ParserRec root; + FT_Stream stream; + + FT_Byte* postscript; + FT_Long postscript_len; + + FT_ULong data_offset; + + FT_Long binary_length; + + CID_FaceInfo cid; + FT_Int num_dict; + + } CID_Parser; + + + FT_LOCAL( FT_Error ) + cid_parser_new( CID_Parser* parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ); + + FT_LOCAL( void ) + cid_parser_done( CID_Parser* parser ); + + + /*************************************************************************/ + /* */ + /* PARSING ROUTINES */ + /* */ + /*************************************************************************/ + +#define cid_parser_skip_spaces( p ) \ + (p)->root.funcs.skip_spaces( &(p)->root ) +#define cid_parser_skip_PS_token( p ) \ + (p)->root.funcs.skip_PS_token( &(p)->root ) + +#define cid_parser_to_int( p ) (p)->root.funcs.to_int( &(p)->root ) +#define cid_parser_to_fixed( p, t ) (p)->root.funcs.to_fixed( &(p)->root, t ) + +#define cid_parser_to_coord_array( p, m, c ) \ + (p)->root.funcs.to_coord_array( &(p)->root, m, c ) +#define cid_parser_to_fixed_array( p, m, f, t ) \ + (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) +#define cid_parser_to_token( p, t ) \ + (p)->root.funcs.to_token( &(p)->root, t ) +#define cid_parser_to_token_array( p, t, m, c ) \ + (p)->root.funcs.to_token_array( &(p)->root, t, m, c ) + +#define cid_parser_load_field( p, f, o ) \ + (p)->root.funcs.load_field( &(p)->root, f, o, 0, 0 ) +#define cid_parser_load_field_table( p, f, o ) \ + (p)->root.funcs.load_field_table( &(p)->root, f, o, 0, 0 ) + + +FT_END_HEADER + +#endif /* __CIDPARSE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidriver.c b/uppsrc/plugin/FT_fontsys/src/cid/cidriver.c new file mode 100644 index 000000000..dd890afca --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidriver.c @@ -0,0 +1,240 @@ +/***************************************************************************/ +/* */ +/* cidriver.c */ +/* */ +/* CID driver interface (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "cidriver.h" +#include "cidgload.h" +#include FT_INTERNAL_DEBUG_H + +#include "ciderrs.h" + +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_CID_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ciddriver + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + cid_get_postscript_name( CID_Face face ) + { + const char* result = face->cid.cid_font_name; + + + if ( result && result[0] == '/' ) + result++; + + return result; + } + + + static const FT_Service_PsFontNameRec cid_service_ps_name = + { + (FT_PsName_GetFunc) cid_get_postscript_name + }; + + + /* + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Error + cid_ps_get_font_info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + *afont_info = ((CID_Face)face)->cid.font_info; + + return CID_Err_Ok; + } + + static FT_Error + cid_ps_get_font_extra( FT_Face face, + PS_FontExtraRec* afont_extra ) + { + *afont_extra = ((CID_Face)face)->font_extra; + + return CID_Err_Ok; + } + + static const FT_Service_PsInfoRec cid_service_ps_info = + { + (PS_GetFontInfoFunc) cid_ps_get_font_info, + (PS_GetFontExtraFunc) cid_ps_get_font_extra, + (PS_HasGlyphNamesFunc) NULL, /* unsupported with CID fonts */ + (PS_GetFontPrivateFunc)NULL /* unsupported */ + }; + + + /* + * CID INFO SERVICE + * + */ + static FT_Error + cid_get_ros( CID_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ) + { + CID_FaceInfo cid = &face->cid; + + + if ( registry ) + *registry = cid->registry; + + if ( ordering ) + *ordering = cid->ordering; + + if ( supplement ) + *supplement = cid->supplement; + + return CID_Err_Ok; + } + + + static FT_Error + cid_get_is_cid( CID_Face face, + FT_Bool *is_cid ) + { + FT_Error error = CID_Err_Ok; + FT_UNUSED( face ); + + + if ( is_cid ) + *is_cid = 1; /* cid driver is only used for CID keyed fonts */ + + return error; + } + + + static FT_Error + cid_get_cid_from_glyph_index( CID_Face face, + FT_UInt glyph_index, + FT_UInt *cid ) + { + FT_Error error = CID_Err_Ok; + FT_UNUSED( face ); + + + if ( cid ) + *cid = glyph_index; /* identity mapping */ + + return error; + } + + + static const FT_Service_CIDRec cid_service_cid_info = + { + (FT_CID_GetRegistryOrderingSupplementFunc)cid_get_ros, + (FT_CID_GetIsInternallyCIDKeyedFunc) cid_get_is_cid, + (FT_CID_GetCIDFromGlyphIndexFunc) cid_get_cid_from_glyph_index + }; + + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec cid_services[] = + { + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CID }, + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cid_service_ps_name }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &cid_service_ps_info }, + { FT_SERVICE_ID_CID, &cid_service_cid_info }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + cid_get_interface( FT_Module module, + const char* cid_interface ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( cid_services, cid_interface ); + } + + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec t1cid_driver_class = + { + /* first of all, the FT_Module_Class fields */ + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + FT_MODULE_DRIVER_HAS_HINTER, + + sizeof( FT_DriverRec ), + "t1cid", /* module name */ + 0x10000L, /* version 1.0 of driver */ + 0x20000L, /* requires FreeType 2.0 */ + + 0, + + cid_driver_init, + cid_driver_done, + cid_get_interface + }, + + /* then the other font drivers fields */ + sizeof( CID_FaceRec ), + sizeof( CID_SizeRec ), + sizeof( CID_GlyphSlotRec ), + + cid_face_init, + cid_face_done, + + cid_size_init, + cid_size_done, + cid_slot_init, + cid_slot_done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + + cid_slot_load_glyph, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + + 0, /* FT_Face_GetAdvancesFunc */ + + cid_size_request, + 0 /* FT_Size_SelectFunc */ + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidriver.h b/uppsrc/plugin/FT_fontsys/src/cid/cidriver.h new file mode 100644 index 000000000..f96c25902 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidriver.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* cidriver.h */ +/* */ +/* High-level CID driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDRIVER_H__ +#define __CIDRIVER_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_CALLBACK_TABLE + const FT_Driver_ClassRec t1cid_driver_class; + + +FT_END_HEADER + +#endif /* __CIDRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/cidtoken.h b/uppsrc/plugin/FT_fontsys/src/cid/cidtoken.h new file mode 100644 index 000000000..904cb09cf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/cidtoken.h @@ -0,0 +1,112 @@ +/***************************************************************************/ +/* */ +/* cidtoken.h */ +/* */ +/* CID token definitions (specification only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CID_FaceInfoRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_CID_INFO + + T1_FIELD_KEY ( "CIDFontName", cid_font_name, 0 ) + T1_FIELD_FIXED ( "CIDFontVersion", cid_version, 0 ) + T1_FIELD_NUM ( "CIDFontType", cid_font_type, 0 ) + T1_FIELD_STRING( "Registry", registry, 0 ) + T1_FIELD_STRING( "Ordering", ordering, 0 ) + T1_FIELD_NUM ( "Supplement", supplement, 0 ) + T1_FIELD_NUM ( "UIDBase", uid_base, 0 ) + T1_FIELD_NUM ( "CIDMapOffset", cidmap_offset, 0 ) + T1_FIELD_NUM ( "FDBytes", fd_bytes, 0 ) + T1_FIELD_NUM ( "GDBytes", gd_bytes, 0 ) + T1_FIELD_NUM ( "CIDCount", cid_count, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontInfoRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_INFO + + T1_FIELD_STRING( "version", version, 0 ) + T1_FIELD_STRING( "Notice", notice, 0 ) + T1_FIELD_STRING( "FullName", full_name, 0 ) + T1_FIELD_STRING( "FamilyName", family_name, 0 ) + T1_FIELD_STRING( "Weight", weight, 0 ) + T1_FIELD_NUM ( "ItalicAngle", italic_angle, 0 ) + T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, 0 ) + T1_FIELD_NUM ( "UnderlinePosition", underline_position, 0 ) + T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontExtraRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA + + T1_FIELD_NUM ( "FSType", fs_type, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CID_FaceDictRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_DICT + + T1_FIELD_NUM ( "PaintType", paint_type, 0 ) + T1_FIELD_NUM ( "FontType", font_type, 0 ) + T1_FIELD_NUM ( "SubrMapOffset", subrmap_offset, 0 ) + T1_FIELD_NUM ( "SDBytes", sd_bytes, 0 ) + T1_FIELD_NUM ( "SubrCount", num_subrs, 0 ) + T1_FIELD_NUM ( "lenBuildCharArray", len_buildchar, 0 ) + T1_FIELD_FIXED( "ForceBoldThreshold", forcebold_threshold, 0 ) + T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_PrivateRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_PRIVATE + + T1_FIELD_NUM ( "UniqueID", unique_id, 0 ) + T1_FIELD_NUM ( "lenIV", lenIV, 0 ) + T1_FIELD_NUM ( "LanguageGroup", language_group, 0 ) + T1_FIELD_NUM ( "password", password, 0 ) + + T1_FIELD_FIXED_1000( "BlueScale", blue_scale, 0 ) + T1_FIELD_NUM ( "BlueShift", blue_shift, 0 ) + T1_FIELD_NUM ( "BlueFuzz", blue_fuzz, 0 ) + + T1_FIELD_NUM_TABLE ( "BlueValues", blue_values, 14, 0 ) + T1_FIELD_NUM_TABLE ( "OtherBlues", other_blues, 10, 0 ) + T1_FIELD_NUM_TABLE ( "FamilyBlues", family_blues, 14, 0 ) + T1_FIELD_NUM_TABLE ( "FamilyOtherBlues", family_other_blues, 10, 0 ) + + T1_FIELD_NUM_TABLE2( "StdHW", standard_width, 1, 0 ) + T1_FIELD_NUM_TABLE2( "StdVW", standard_height, 1, 0 ) + T1_FIELD_NUM_TABLE2( "MinFeature", min_feature, 2, 0 ) + + T1_FIELD_NUM_TABLE ( "StemSnapH", snap_widths, 12, 0 ) + T1_FIELD_NUM_TABLE ( "StemSnapV", snap_heights, 12, 0 ) + + T1_FIELD_BOOL ( "ForceBold", force_bold, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_BBox +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BBOX + + T1_FIELD_BBOX( "FontBBox", xMin, 0 ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/cid/type1cid.c b/uppsrc/plugin/FT_fontsys/src/cid/type1cid.c new file mode 100644 index 000000000..79ab89c43 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/cid/type1cid.c @@ -0,0 +1,29 @@ +/***************************************************************************/ +/* */ +/* type1cid.c */ +/* */ +/* FreeType OpenType driver component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "cidparse.c" +#include "cidload.c" +#include "cidobjs.c" +#include "cidriver.c" +#include "cidgload.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvalid.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvalid.c new file mode 100644 index 000000000..4360d6bd3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvalid.c @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* gxvalid.c */ +/* */ +/* FreeType validator for TrueTypeGX/AAT tables (body only). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> + +#include "gxvfeat.c" +#include "gxvcommn.c" +#include "gxvbsln.c" +#include "gxvtrak.c" +#include "gxvjust.c" +#include "gxvmort.c" +#include "gxvmort0.c" +#include "gxvmort1.c" +#include "gxvmort2.c" +#include "gxvmort4.c" +#include "gxvmort5.c" +#include "gxvmorx.c" +#include "gxvmorx0.c" +#include "gxvmorx1.c" +#include "gxvmorx2.c" +#include "gxvmorx4.c" +#include "gxvmorx5.c" +#include "gxvkern.c" +#include "gxvopbd.c" +#include "gxvprop.c" +#include "gxvlcar.c" +#include "gxvmod.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvalid.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvalid.h new file mode 100644 index 000000000..e799e2fcc --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvalid.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* gxvalid.h */ +/* */ +/* TrueTyeeGX/AAT table validation (specification only). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVALID_H__ +#define __GXVALID_H__ + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + +#include "gxverror.h" /* must come before FT_INTERNAL_VALIDATE_H */ + +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + gxv_feat_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + + FT_LOCAL( void ) + gxv_bsln_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + + FT_LOCAL( void ) + gxv_trak_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_just_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_kern_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_kern_validate_classic( FT_Bytes table, + FT_Face face, + FT_Int dialect_flags, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_opbd_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_prop_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_lcar_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + +FT_END_HEADER + + +#endif /* __GXVALID_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvbsln.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvbsln.c new file mode 100644 index 000000000..3d1003156 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvbsln.c @@ -0,0 +1,333 @@ +/***************************************************************************/ +/* */ +/* gxvbsln.c */ +/* */ +/* TrueTypeGX/AAT bsln table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvbsln + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_BSLN_VALUE_COUNT 32 +#define GXV_BSLN_VALUE_EMPTY 0xFFFFU + + + typedef struct GXV_bsln_DataRec_ + { + FT_Bytes ctlPoints_p; + FT_UShort defaultBaseline; + + } GXV_bsln_DataRec, *GXV_bsln_Data; + + +#define GXV_BSLN_DATA( field ) GXV_TABLE_DATA( bsln, field ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_bsln_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UShort v = value_p->u; + FT_UShort* ctlPoints; + + FT_UNUSED( glyph ); + + + GXV_NAME_ENTER( "lookup value" ); + + if ( v >= GXV_BSLN_VALUE_COUNT ) + FT_INVALID_DATA; + + ctlPoints = (FT_UShort*)GXV_BSLN_DATA( ctlPoints_p ); + if ( ctlPoints && ctlPoints[v] == GXV_BSLN_VALUE_EMPTY ) + FT_INVALID_DATA; + + GXV_EXIT; + } + + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + ... | + | + 16bit value array | + +===============+ | + | value | <-------+ + ... + */ + + static GXV_LookupValueDesc + gxv_bsln_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range ? */ + offset = (FT_UShort)( base_value_p->u + + ( relative_gindex * sizeof ( FT_UShort ) ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + GXV_LIMIT_CHECK( 2 ); + + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + static void + gxv_bsln_parts_fmt0_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = tables; + + + GXV_NAME_ENTER( "parts format 0" ); + + /* deltas */ + GXV_LIMIT_CHECK( 2 * GXV_BSLN_VALUE_COUNT ); + + valid->table_data = NULL; /* No ctlPoints here. */ + + GXV_EXIT; + } + + + static void + gxv_bsln_parts_fmt1_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = tables; + + + GXV_NAME_ENTER( "parts format 1" ); + + /* deltas */ + gxv_bsln_parts_fmt0_validate( p, limit, valid ); + + /* mappingData */ + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_bsln_LookupValue_validate; + valid->lookupfmt4_trans = gxv_bsln_LookupFmt4_transit; + gxv_LookupTable_validate( p + 2 * GXV_BSLN_VALUE_COUNT, + limit, + valid ); + + GXV_EXIT; + } + + + static void + gxv_bsln_parts_fmt2_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = tables; + + FT_UShort stdGlyph; + FT_UShort ctlPoint; + FT_Int i; + + FT_UShort defaultBaseline = GXV_BSLN_DATA( defaultBaseline ); + + + GXV_NAME_ENTER( "parts format 2" ); + + GXV_LIMIT_CHECK( 2 + ( 2 * GXV_BSLN_VALUE_COUNT ) ); + + /* stdGlyph */ + stdGlyph = FT_NEXT_USHORT( p ); + GXV_TRACE(( " (stdGlyph = %u)\n", stdGlyph )); + + gxv_glyphid_validate( stdGlyph, valid ); + + /* Record the position of ctlPoints */ + GXV_BSLN_DATA( ctlPoints_p ) = p; + + /* ctlPoints */ + for ( i = 0; i < GXV_BSLN_VALUE_COUNT; i++ ) + { + ctlPoint = FT_NEXT_USHORT( p ); + if ( ctlPoint == GXV_BSLN_VALUE_EMPTY ) + { + if ( i == defaultBaseline ) + FT_INVALID_DATA; + } + else + gxv_ctlPoint_validate( stdGlyph, (FT_Short)ctlPoint, valid ); + } + + GXV_EXIT; + } + + + static void + gxv_bsln_parts_fmt3_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid) + { + FT_Bytes p = tables; + + + GXV_NAME_ENTER( "parts format 3" ); + + /* stdGlyph + ctlPoints */ + gxv_bsln_parts_fmt2_validate( p, limit, valid ); + + /* mappingData */ + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_bsln_LookupValue_validate; + valid->lookupfmt4_trans = gxv_bsln_LookupFmt4_transit; + gxv_LookupTable_validate( p + ( 2 + 2 * GXV_BSLN_VALUE_COUNT ), + limit, + valid ); + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** bsln TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_bsln_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_bsln_DataRec bslnrec; + GXV_bsln_Data bsln = &bslnrec; + + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_ULong version; + FT_UShort format; + FT_UShort defaultBaseline; + + GXV_Validate_Func fmt_funcs_table [] = + { + gxv_bsln_parts_fmt0_validate, + gxv_bsln_parts_fmt1_validate, + gxv_bsln_parts_fmt2_validate, + gxv_bsln_parts_fmt3_validate, + }; + + + valid->root = ftvalid; + valid->table_data = bsln; + valid->face = face; + + FT_TRACE3(( "validating `bsln' table\n" )); + GXV_INIT; + + + GXV_LIMIT_CHECK( 4 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + defaultBaseline = FT_NEXT_USHORT( p ); + + /* only version 1.0 is defined (1996) */ + if ( version != 0x00010000UL ) + FT_INVALID_FORMAT; + + /* only format 1, 2, 3 are defined (1996) */ + GXV_TRACE(( " (format = %d)\n", format )); + if ( format > 3 ) + FT_INVALID_FORMAT; + + if ( defaultBaseline > 31 ) + FT_INVALID_FORMAT; + + bsln->defaultBaseline = defaultBaseline; + + fmt_funcs_table[format]( p, limit, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* arch-tag: ebe81143-fdaa-4c68-a4d1-b57227daa3bc + (do not change this comment) */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvcommn.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvcommn.c new file mode 100644 index 000000000..d3c48d4ea --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvcommn.c @@ -0,0 +1,1744 @@ +/***************************************************************************/ +/* */ +/* gxvcommn.c */ +/* */ +/* TrueTypeGX/AAT common tables validation (body). */ +/* */ +/* Copyright 2004, 2005, 2009, 2010 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvcommon + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** 16bit offset sorter *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static int + gxv_compare_ushort_offset( FT_UShort* a, + FT_UShort* b ) + { + if ( *a < *b ) + return -1; + else if ( *a > *b ) + return 1; + else + return 0; + } + + + FT_LOCAL_DEF( void ) + gxv_set_length_by_ushort_offset( FT_UShort* offset, + FT_UShort** length, + FT_UShort* buff, + FT_UInt nmemb, + FT_UShort limit, + GXV_Validator valid ) + { + FT_UInt i; + + + for ( i = 0; i < nmemb; i++ ) + *(length[i]) = 0; + + for ( i = 0; i < nmemb; i++ ) + buff[i] = offset[i]; + buff[nmemb] = limit; + + ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_UShort ), + ( int(*)(const void*, const void*) )gxv_compare_ushort_offset ); + + if ( buff[nmemb] > limit ) + FT_INVALID_OFFSET; + + for ( i = 0; i < nmemb; i++ ) + { + FT_UInt j; + + + for ( j = 0; j < nmemb; j++ ) + if ( buff[j] == offset[i] ) + break; + + if ( j == nmemb ) + FT_INVALID_OFFSET; + + *(length[i]) = (FT_UShort)( buff[j + 1] - buff[j] ); + + if ( 0 != offset[i] && 0 == *(length[i]) ) + FT_INVALID_OFFSET; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** 32bit offset sorter *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static int + gxv_compare_ulong_offset( FT_ULong* a, + FT_ULong* b ) + { + if ( *a < *b ) + return -1; + else if ( *a > *b ) + return 1; + else + return 0; + } + + + FT_LOCAL_DEF( void ) + gxv_set_length_by_ulong_offset( FT_ULong* offset, + FT_ULong** length, + FT_ULong* buff, + FT_UInt nmemb, + FT_ULong limit, + GXV_Validator valid) + { + FT_UInt i; + + + for ( i = 0; i < nmemb; i++ ) + *(length[i]) = 0; + + for ( i = 0; i < nmemb; i++ ) + buff[i] = offset[i]; + buff[nmemb] = limit; + + ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_ULong ), + ( int(*)(const void*, const void*) )gxv_compare_ulong_offset ); + + if ( buff[nmemb] > limit ) + FT_INVALID_OFFSET; + + for ( i = 0; i < nmemb; i++ ) + { + FT_UInt j; + + + for ( j = 0; j < nmemb; j++ ) + if ( buff[j] == offset[i] ) + break; + + if ( j == nmemb ) + FT_INVALID_OFFSET; + + *(length[i]) = buff[j + 1] - buff[j]; + + if ( 0 != offset[i] && 0 == *(length[i]) ) + FT_INVALID_OFFSET; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** scan value array and get min & max *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( void ) + gxv_array_getlimits_byte( FT_Bytes table, + FT_Bytes limit, + FT_Byte* min, + FT_Byte* max, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + *min = 0xFF; + *max = 0x00; + + while ( p < limit ) + { + FT_Byte val; + + + GXV_LIMIT_CHECK( 1 ); + val = FT_NEXT_BYTE( p ); + + *min = (FT_Byte)FT_MIN( *min, val ); + *max = (FT_Byte)FT_MAX( *max, val ); + } + + valid->subtable_length = p - table; + } + + + FT_LOCAL_DEF( void ) + gxv_array_getlimits_ushort( FT_Bytes table, + FT_Bytes limit, + FT_UShort* min, + FT_UShort* max, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + *min = 0xFFFFU; + *max = 0x0000; + + while ( p < limit ) + { + FT_UShort val; + + + GXV_LIMIT_CHECK( 2 ); + val = FT_NEXT_USHORT( p ); + + *min = (FT_Byte)FT_MIN( *min, val ); + *max = (FT_Byte)FT_MAX( *max, val ); + } + + valid->subtable_length = p - table; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BINSEARCHHEADER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_BinSrchHeader_ + { + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort searchRange; + FT_UShort entrySelector; + FT_UShort rangeShift; + + } GXV_BinSrchHeader; + + + static void + gxv_BinSrchHeader_check_consistency( GXV_BinSrchHeader* binSrchHeader, + GXV_Validator valid ) + { + FT_UShort searchRange; + FT_UShort entrySelector; + FT_UShort rangeShift; + + + if ( binSrchHeader->unitSize == 0 ) + FT_INVALID_DATA; + + if ( binSrchHeader->nUnits == 0 ) + { + if ( binSrchHeader->searchRange == 0 && + binSrchHeader->entrySelector == 0 && + binSrchHeader->rangeShift == 0 ) + return; + else + FT_INVALID_DATA; + } + + for ( searchRange = 1, entrySelector = 1; + ( searchRange * 2 ) <= binSrchHeader->nUnits && + searchRange < 0x8000U; + searchRange *= 2, entrySelector++ ) + ; + + entrySelector--; + searchRange = (FT_UShort)( searchRange * binSrchHeader->unitSize ); + rangeShift = (FT_UShort)( binSrchHeader->nUnits * binSrchHeader->unitSize + - searchRange ); + + if ( searchRange != binSrchHeader->searchRange || + entrySelector != binSrchHeader->entrySelector || + rangeShift != binSrchHeader->rangeShift ) + { + GXV_TRACE(( "Inconsistency found in BinSrchHeader\n" )); + GXV_TRACE(( "originally: unitSize=%d, nUnits=%d, " + "searchRange=%d, entrySelector=%d, " + "rangeShift=%d\n", + binSrchHeader->unitSize, binSrchHeader->nUnits, + binSrchHeader->searchRange, binSrchHeader->entrySelector, + binSrchHeader->rangeShift )); + GXV_TRACE(( "calculated: unitSize=%d, nUnits=%d, " + "searchRange=%d, entrySelector=%d, " + "rangeShift=%d\n", + binSrchHeader->unitSize, binSrchHeader->nUnits, + searchRange, entrySelector, rangeShift )); + + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + } + + + /* + * parser & validator of BinSrchHeader + * which is used in LookupTable format 2, 4, 6. + * + * Essential parameters (unitSize, nUnits) are returned by + * given pointer, others (searchRange, entrySelector, rangeShift) + * can be calculated by essential parameters, so they are just + * validated and discarded. + * + * However, wrong values in searchRange, entrySelector, rangeShift + * won't cause fatal errors, because these parameters might be + * only used in old m68k font driver in MacOS. + * -- suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> + */ + + FT_LOCAL_DEF( void ) + gxv_BinSrchHeader_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort* unitSize_p, + FT_UShort* nUnits_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_BinSrchHeader binSrchHeader; + + + GXV_NAME_ENTER( "BinSrchHeader validate" ); + + if ( *unitSize_p == 0 ) + { + GXV_LIMIT_CHECK( 2 ); + binSrchHeader.unitSize = FT_NEXT_USHORT( p ); + } + else + binSrchHeader.unitSize = *unitSize_p; + + if ( *nUnits_p == 0 ) + { + GXV_LIMIT_CHECK( 2 ); + binSrchHeader.nUnits = FT_NEXT_USHORT( p ); + } + else + binSrchHeader.nUnits = *nUnits_p; + + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + binSrchHeader.searchRange = FT_NEXT_USHORT( p ); + binSrchHeader.entrySelector = FT_NEXT_USHORT( p ); + binSrchHeader.rangeShift = FT_NEXT_USHORT( p ); + GXV_TRACE(( "nUnits %d\n", binSrchHeader.nUnits )); + + gxv_BinSrchHeader_check_consistency( &binSrchHeader, valid ); + + if ( *unitSize_p == 0 ) + *unitSize_p = binSrchHeader.unitSize; + + if ( *nUnits_p == 0 ) + *nUnits_p = binSrchHeader.nUnits; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUP TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_LOOKUP_VALUE_LOAD( P, SIGNSPEC ) \ + ( P += 2, gxv_lookup_value_load( P - 2, SIGNSPEC ) ) + + static GXV_LookupValueDesc + gxv_lookup_value_load( FT_Bytes p, + int signspec ) + { + GXV_LookupValueDesc v; + + + if ( signspec == GXV_LOOKUPVALUE_UNSIGNED ) + v.u = FT_NEXT_USHORT( p ); + else + v.s = FT_NEXT_SHORT( p ); + + return v; + } + + +#define GXV_UNITSIZE_VALIDATE( FORMAT, UNITSIZE, NUNITS, CORRECTSIZE ) \ + FT_BEGIN_STMNT \ + if ( UNITSIZE != CORRECTSIZE ) \ + { \ + FT_ERROR(( "unitSize=%d differs from" \ + " expected unitSize=%d" \ + " in LookupTable %s\n", \ + UNITSIZE, CORRECTSIZE, FORMAT )); \ + if ( UNITSIZE != 0 && NUNITS != 0 ) \ + { \ + FT_ERROR(( " cannot validate anymore\n" )); \ + FT_INVALID_FORMAT; \ + } \ + else \ + FT_ERROR(( " forcibly continues\n" )); \ + } \ + FT_END_STMNT + + + /* ================= Simple Array Format 0 Lookup Table ================ */ + static void + gxv_LookupTable_fmt0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 0" ); + + GXV_LIMIT_CHECK( 2 * valid->face->num_glyphs ); + + for ( i = 0; i < valid->face->num_glyphs; i++ ) + { + GXV_LIMIT_CHECK( 2 ); + if ( p + 2 >= limit ) /* some fonts have too-short fmt0 array */ + { + GXV_TRACE(( "too short, glyphs %d - %d are missing\n", + i, valid->face->num_glyphs )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + break; + } + + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + valid->lookupval_func( i, &value, valid ); + } + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Segment Single Format 2 Loolup Table ============== */ + /* + * Apple spec says: + * + * To guarantee that a binary search terminates, you must include one or + * more special `end of search table' values at the end of the data to + * be searched. The number of termination values that need to be + * included is table-specific. The value that indicates binary search + * termination is 0xFFFF. + * + * The problem is that nUnits does not include this end-marker. It's + * quite difficult to discriminate whether the following 0xFFFF comes from + * the end-marker or some next data. + * + * -- suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> + */ + static void + gxv_LookupTable_fmt2_skip_endmarkers( FT_Bytes table, + FT_UShort unitSize, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + while ( ( p + 4 ) < valid->root->limit ) + { + if ( p[0] != 0xFF || p[1] != 0xFF || /* lastGlyph */ + p[2] != 0xFF || p[3] != 0xFF ) /* firstGlyph */ + break; + p += unitSize; + } + + valid->subtable_length = p - table; + } + + + static void + gxv_LookupTable_fmt2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort gid; + + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort unit; + FT_UShort lastGlyph; + FT_UShort firstGlyph; + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 2" ); + + unitSize = nUnits = 0; + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nUnits, valid ); + p += valid->subtable_length; + + GXV_UNITSIZE_VALIDATE( "format2", unitSize, nUnits, 6 ); + + for ( unit = 0, gid = 0; unit < nUnits; unit++ ) + { + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + lastGlyph = FT_NEXT_USHORT( p ); + firstGlyph = FT_NEXT_USHORT( p ); + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( lastGlyph, valid ); + + if ( lastGlyph < gid ) + { + GXV_TRACE(( "reverse ordered segment specification:" + " lastGlyph[%d]=%d < lastGlyph[%d]=%d\n", + unit, lastGlyph, unit - 1 , gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + if ( lastGlyph < firstGlyph ) + { + GXV_TRACE(( "reverse ordered range specification at unit %d:", + " lastGlyph %d < firstGlyph %d ", + unit, lastGlyph, firstGlyph )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + + if ( valid->root->level == FT_VALIDATE_TIGHT ) + continue; /* ftxvalidator silently skips such an entry */ + + FT_TRACE4(( "continuing with exchanged values\n" )); + gid = firstGlyph; + firstGlyph = lastGlyph; + lastGlyph = gid; + } + + for ( gid = firstGlyph; gid <= lastGlyph; gid++ ) + valid->lookupval_func( gid, &value, valid ); + } + + gxv_LookupTable_fmt2_skip_endmarkers( p, unitSize, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Segment Array Format 4 Lookup Table =============== */ + static void + gxv_LookupTable_fmt4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort unit; + FT_UShort gid; + + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort lastGlyph; + FT_UShort firstGlyph; + GXV_LookupValueDesc base_value; + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 4" ); + + unitSize = nUnits = 0; + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nUnits, valid ); + p += valid->subtable_length; + + GXV_UNITSIZE_VALIDATE( "format4", unitSize, nUnits, 6 ); + + for ( unit = 0, gid = 0; unit < nUnits; unit++ ) + { + GXV_LIMIT_CHECK( 2 + 2 ); + lastGlyph = FT_NEXT_USHORT( p ); + firstGlyph = FT_NEXT_USHORT( p ); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( lastGlyph, valid ); + + if ( lastGlyph < gid ) + { + GXV_TRACE(( "reverse ordered segment specification:" + " lastGlyph[%d]=%d < lastGlyph[%d]=%d\n", + unit, lastGlyph, unit - 1 , gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + if ( lastGlyph < firstGlyph ) + { + GXV_TRACE(( "reverse ordered range specification at unit %d:", + " lastGlyph %d < firstGlyph %d ", + unit, lastGlyph, firstGlyph )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + + if ( valid->root->level == FT_VALIDATE_TIGHT ) + continue; /* ftxvalidator silently skips such an entry */ + + FT_TRACE4(( "continuing with exchanged values\n" )); + gid = firstGlyph; + firstGlyph = lastGlyph; + lastGlyph = gid; + } + + GXV_LIMIT_CHECK( 2 ); + base_value = GXV_LOOKUP_VALUE_LOAD( p, GXV_LOOKUPVALUE_UNSIGNED ); + + for ( gid = firstGlyph; gid <= lastGlyph; gid++ ) + { + value = valid->lookupfmt4_trans( (FT_UShort)( gid - firstGlyph ), + &base_value, + limit, + valid ); + + valid->lookupval_func( gid, &value, valid ); + } + } + + gxv_LookupTable_fmt2_skip_endmarkers( p, unitSize, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Segment Table Format 6 Lookup Table =============== */ + static void + gxv_LookupTable_fmt6_skip_endmarkers( FT_Bytes table, + FT_UShort unitSize, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + while ( p < valid->root->limit ) + { + if ( p[0] != 0xFF || p[1] != 0xFF ) + break; + p += unitSize; + } + + valid->subtable_length = p - table; + } + + + static void + gxv_LookupTable_fmt6_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort unit; + FT_UShort prev_glyph; + + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort glyph; + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 6" ); + + unitSize = nUnits = 0; + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nUnits, valid ); + p += valid->subtable_length; + + GXV_UNITSIZE_VALIDATE( "format6", unitSize, nUnits, 4 ); + + for ( unit = 0, prev_glyph = 0; unit < nUnits; unit++ ) + { + GXV_LIMIT_CHECK( 2 + 2 ); + glyph = FT_NEXT_USHORT( p ); + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + + if ( gxv_glyphid_validate( glyph, valid ) ) + GXV_TRACE(( " endmarker found within defined range" + " (entry %d < nUnits=%d)\n", + unit, nUnits )); + + if ( prev_glyph > glyph ) + { + GXV_TRACE(( "current gid 0x%04x < previous gid 0x%04x\n", + glyph, prev_glyph )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + prev_glyph = glyph; + + valid->lookupval_func( glyph, &value, valid ); + } + + gxv_LookupTable_fmt6_skip_endmarkers( p, unitSize, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Trimmed Array Format 8 Lookup Table =============== */ + static void + gxv_LookupTable_fmt8_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + GXV_LookupValueDesc value; + FT_UShort firstGlyph; + FT_UShort glyphCount; + + + GXV_NAME_ENTER( "LookupTable format 8" ); + + /* firstGlyph + glyphCount */ + GXV_LIMIT_CHECK( 2 + 2 ); + firstGlyph = FT_NEXT_USHORT( p ); + glyphCount = FT_NEXT_USHORT( p ); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( (FT_UShort)( firstGlyph + glyphCount ), valid ); + + /* valueArray */ + for ( i = 0; i < glyphCount; i++ ) + { + GXV_LIMIT_CHECK( 2 ); + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + valid->lookupval_func( (FT_UShort)( firstGlyph + i ), &value, valid ); + } + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_LookupTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort format; + + GXV_Validate_Func fmt_funcs_table[] = + { + gxv_LookupTable_fmt0_validate, /* 0 */ + NULL, /* 1 */ + gxv_LookupTable_fmt2_validate, /* 2 */ + NULL, /* 3 */ + gxv_LookupTable_fmt4_validate, /* 4 */ + NULL, /* 5 */ + gxv_LookupTable_fmt6_validate, /* 6 */ + NULL, /* 7 */ + gxv_LookupTable_fmt8_validate, /* 8 */ + }; + + GXV_Validate_Func func; + + + GXV_NAME_ENTER( "LookupTable" ); + + /* lookuptbl_head may be used in fmt4 transit function. */ + valid->lookuptbl_head = table; + + /* format */ + GXV_LIMIT_CHECK( 2 ); + format = FT_NEXT_USHORT( p ); + GXV_TRACE(( " (format %d)\n", format )); + + if ( format > 8 ) + FT_INVALID_FORMAT; + + func = fmt_funcs_table[format]; + if ( func == NULL ) + FT_INVALID_FORMAT; + + func( p, limit, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Glyph ID *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( FT_Int ) + gxv_glyphid_validate( FT_UShort gid, + GXV_Validator valid ) + { + FT_Face face; + + + if ( gid == 0xFFFFU ) + { + GXV_EXIT; + return 1; + } + + face = valid->face; + if ( face->num_glyphs < gid ) + { + GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %d < %d\n", + face->num_glyphs, gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + return 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CONTROL POINT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_ctlPoint_validate( FT_UShort gid, + FT_Short ctl_point, + GXV_Validator valid ) + { + FT_Face face; + FT_Error error; + + FT_GlyphSlot glyph; + FT_Outline outline; + short n_points; + + + face = valid->face; + + error = FT_Load_Glyph( face, + gid, + FT_LOAD_NO_BITMAP | FT_LOAD_IGNORE_TRANSFORM ); + if ( error ) + FT_INVALID_GLYPH_ID; + + glyph = face->glyph; + outline = glyph->outline; + n_points = outline.n_points; + + + if ( !( ctl_point < n_points ) ) + FT_INVALID_DATA; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SFNT NAME *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_sfntName_validate( FT_UShort name_index, + FT_UShort min_index, + FT_UShort max_index, + GXV_Validator valid ) + { + FT_SfntName name; + FT_UInt i; + FT_UInt nnames; + + + GXV_NAME_ENTER( "sfntName" ); + + if ( name_index < min_index || max_index < name_index ) + FT_INVALID_FORMAT; + + nnames = FT_Get_Sfnt_Name_Count( valid->face ); + for ( i = 0; i < nnames; i++ ) + { + if ( FT_Get_Sfnt_Name( valid->face, i, &name ) != GXV_Err_Ok ) + continue ; + + if ( name.name_id == name_index ) + goto Out; + } + + GXV_TRACE(( " nameIndex = %d (UNTITLED)\n", name_index )); + FT_INVALID_DATA; + goto Exit; /* make compiler happy */ + + Out: + FT_TRACE1(( " nameIndex = %d (", name_index )); + GXV_TRACE_HEXDUMP_SFNTNAME( name ); + FT_TRACE1(( ")\n" )); + + Exit: + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STATE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* -------------------------- Class Table --------------------------- */ + + /* + * highestClass specifies how many classes are defined in this + * Class Subtable. Apple spec does not mention whether undefined + * holes in the class (e.g.: 0-3 are predefined, 4 is unused, 5 is used) + * are permitted. At present, holes in a defined class are not checked. + * -- suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> + */ + + static void + gxv_ClassTable_validate( FT_Bytes table, + FT_UShort* length_p, + FT_UShort stateSize, + FT_Byte* maxClassID_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_UShort firstGlyph; + FT_UShort nGlyphs; + + + GXV_NAME_ENTER( "ClassTable" ); + + *maxClassID_p = 3; /* Classes 0, 2, and 3 are predefined */ + + GXV_LIMIT_CHECK( 2 + 2 ); + firstGlyph = FT_NEXT_USHORT( p ); + nGlyphs = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " (firstGlyph = %d, nGlyphs = %d)\n", firstGlyph, nGlyphs )); + + if ( !nGlyphs ) + goto Out; + + gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs ), valid ); + + { + FT_Byte nGlyphInClass[256]; + FT_Byte classID; + FT_UShort i; + + + ft_memset( nGlyphInClass, 0, 256 ); + + + for ( i = 0; i < nGlyphs; i++ ) + { + GXV_LIMIT_CHECK( 1 ); + classID = FT_NEXT_BYTE( p ); + switch ( classID ) + { + /* following classes should not appear in class array */ + case 0: /* end of text */ + case 2: /* out of bounds */ + case 3: /* end of line */ + FT_INVALID_DATA; + break; + + case 1: /* out of bounds */ + default: /* user-defined: 4 - ( stateSize - 1 ) */ + if ( classID >= stateSize ) + FT_INVALID_DATA; /* assign glyph to undefined state */ + + nGlyphInClass[classID]++; + break; + } + } + *length_p = (FT_UShort)( p - table ); + + /* scan max ClassID in use */ + for ( i = 0; i < stateSize; i++ ) + if ( ( 3 < i ) && ( nGlyphInClass[i] > 0 ) ) + *maxClassID_p = (FT_Byte)i; /* XXX: Check Range? */ + } + + Out: + GXV_TRACE(( "Declared stateSize=0x%02x, Used maxClassID=0x%02x\n", + stateSize, *maxClassID_p )); + GXV_EXIT; + } + + + /* --------------------------- State Array ----------------------------- */ + + static void + gxv_StateArray_validate( FT_Bytes table, + FT_UShort* length_p, + FT_Byte maxClassID, + FT_UShort stateSize, + FT_Byte* maxState_p, + FT_Byte* maxEntry_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_Byte clazz; + FT_Byte entry; + + FT_UNUSED( stateSize ); /* for the non-debugging case */ + + + GXV_NAME_ENTER( "StateArray" ); + + GXV_TRACE(( "parse %d bytes by stateSize=%d maxClassID=%d\n", + (int)(*length_p), stateSize, (int)(maxClassID) )); + + /* + * 2 states are predefined and must be described in StateArray: + * state 0 (start of text), 1 (start of line) + */ + GXV_LIMIT_CHECK( ( 1 + maxClassID ) * 2 ); + + *maxState_p = 0; + *maxEntry_p = 0; + + /* read if enough to read another state */ + while ( p + ( 1 + maxClassID ) <= limit ) + { + (*maxState_p)++; + for ( clazz = 0; clazz <= maxClassID; clazz++ ) + { + entry = FT_NEXT_BYTE( p ); + *maxEntry_p = (FT_Byte)FT_MAX( *maxEntry_p, entry ); + } + } + GXV_TRACE(( "parsed: maxState=%d, maxEntry=%d\n", + *maxState_p, *maxEntry_p )); + + *length_p = (FT_UShort)( p - table ); + + GXV_EXIT; + } + + + /* --------------------------- Entry Table ----------------------------- */ + + static void + gxv_EntryTable_validate( FT_Bytes table, + FT_UShort* length_p, + FT_Byte maxEntry, + FT_UShort stateArray, + FT_UShort stateArray_length, + FT_Byte maxClassID, + FT_Bytes statetable_table, + FT_Bytes statetable_limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_Byte entry; + FT_Byte state; + FT_Int entrySize = 2 + 2 + GXV_GLYPHOFFSET_SIZE( statetable ); + + GXV_XStateTable_GlyphOffsetDesc glyphOffset; + + + GXV_NAME_ENTER( "EntryTable" ); + + GXV_TRACE(( "maxEntry=%d entrySize=%d\n", maxEntry, entrySize )); + + if ( ( maxEntry + 1 ) * entrySize > *length_p ) + { + GXV_SET_ERR_IF_PARANOID( FT_INVALID_TOO_SHORT ); + + /* ftxvalidator and FontValidator both warn and continue */ + maxEntry = (FT_Byte)( *length_p / entrySize - 1 ); + GXV_TRACE(( "too large maxEntry, shrinking to %d fit EntryTable length\n", + maxEntry )); + } + + for ( entry = 0; entry <= maxEntry; entry++ ) + { + FT_UShort newState; + FT_UShort flags; + + + GXV_LIMIT_CHECK( 2 + 2 ); + newState = FT_NEXT_USHORT( p ); + flags = FT_NEXT_USHORT( p ); + + + if ( newState < stateArray || + stateArray + stateArray_length < newState ) + { + GXV_TRACE(( " newState offset 0x%04x is out of stateArray\n", + newState )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + continue; + } + + if ( 0 != ( ( newState - stateArray ) % ( 1 + maxClassID ) ) ) + { + GXV_TRACE(( " newState offset 0x%04x is not aligned to %d-classes\n", + newState, 1 + maxClassID )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + continue; + } + + state = (FT_Byte)( ( newState - stateArray ) / ( 1 + maxClassID ) ); + + switch ( GXV_GLYPHOFFSET_FMT( statetable ) ) + { + case GXV_GLYPHOFFSET_NONE: + glyphOffset.uc = 0; /* make compiler happy */ + break; + + case GXV_GLYPHOFFSET_UCHAR: + glyphOffset.uc = FT_NEXT_BYTE( p ); + break; + + case GXV_GLYPHOFFSET_CHAR: + glyphOffset.c = FT_NEXT_CHAR( p ); + break; + + case GXV_GLYPHOFFSET_USHORT: + glyphOffset.u = FT_NEXT_USHORT( p ); + break; + + case GXV_GLYPHOFFSET_SHORT: + glyphOffset.s = FT_NEXT_SHORT( p ); + break; + + case GXV_GLYPHOFFSET_ULONG: + glyphOffset.ul = FT_NEXT_ULONG( p ); + break; + + case GXV_GLYPHOFFSET_LONG: + glyphOffset.l = FT_NEXT_LONG( p ); + break; + + default: + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + goto Exit; + } + + if ( NULL != valid->statetable.entry_validate_func ) + valid->statetable.entry_validate_func( state, + flags, + &glyphOffset, + statetable_table, + statetable_limit, + valid ); + } + + Exit: + *length_p = (FT_UShort)( p - table ); + + GXV_EXIT; + } + + + /* =========================== State Table ============================= */ + + FT_LOCAL_DEF( void ) + gxv_StateTable_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[3]; + FT_UShort* l[3]; + FT_UShort buff[4]; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + + gxv_set_length_by_ushort_offset( o, l, buff, 3, table_size, valid ); + } + + + FT_LOCAL_DEF( void ) + gxv_StateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_UShort stateSize; + FT_UShort classTable; /* offset to Class(Sub)Table */ + FT_UShort stateArray; /* offset to StateArray */ + FT_UShort entryTable; /* offset to EntryTable */ + + FT_UShort classTable_length; + FT_UShort stateArray_length; + FT_UShort entryTable_length; + FT_Byte maxClassID; + FT_Byte maxState; + FT_Byte maxEntry; + + GXV_StateTable_Subtable_Setup_Func setup_func; + + FT_Bytes p = table; + + + GXV_NAME_ENTER( "StateTable" ); + + GXV_TRACE(( "StateTable header\n" )); + + GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 ); + stateSize = FT_NEXT_USHORT( p ); + classTable = FT_NEXT_USHORT( p ); + stateArray = FT_NEXT_USHORT( p ); + entryTable = FT_NEXT_USHORT( p ); + + GXV_TRACE(( "stateSize=0x%04x\n", stateSize )); + GXV_TRACE(( "offset to classTable=0x%04x\n", classTable )); + GXV_TRACE(( "offset to stateArray=0x%04x\n", stateArray )); + GXV_TRACE(( "offset to entryTable=0x%04x\n", entryTable )); + + if ( stateSize > 0xFF ) + FT_INVALID_DATA; + + if ( valid->statetable.optdata_load_func != NULL ) + valid->statetable.optdata_load_func( p, limit, valid ); + + if ( valid->statetable.subtable_setup_func != NULL) + setup_func = valid->statetable.subtable_setup_func; + else + setup_func = gxv_StateTable_subtable_setup; + + setup_func( (FT_UShort)( limit - table ), + classTable, + stateArray, + entryTable, + &classTable_length, + &stateArray_length, + &entryTable_length, + valid ); + + GXV_TRACE(( "StateTable Subtables\n" )); + + if ( classTable != 0 ) + gxv_ClassTable_validate( table + classTable, + &classTable_length, + stateSize, + &maxClassID, + valid ); + else + maxClassID = (FT_Byte)( stateSize - 1 ); + + if ( stateArray != 0 ) + gxv_StateArray_validate( table + stateArray, + &stateArray_length, + maxClassID, + stateSize, + &maxState, + &maxEntry, + valid ); + else + { + maxState = 1; /* 0:start of text, 1:start of line are predefined */ + maxEntry = 0; + } + + if ( maxEntry > 0 && entryTable == 0 ) + FT_INVALID_OFFSET; + + if ( entryTable != 0 ) + gxv_EntryTable_validate( table + entryTable, + &entryTable_length, + maxEntry, + stateArray, + stateArray_length, + maxClassID, + table, + limit, + valid ); + + GXV_EXIT; + } + + + /* ================= eXtended State Table (for morx) =================== */ + + FT_LOCAL_DEF( void ) + gxv_XStateTable_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[3]; + FT_ULong* l[3]; + FT_ULong buff[4]; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + + gxv_set_length_by_ulong_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_XClassTable_lookupval_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + if ( value_p->u >= valid->xstatetable.nClasses ) + FT_INVALID_DATA; + if ( value_p->u > valid->xstatetable.maxClassID ) + valid->xstatetable.maxClassID = value_p->u; + } + + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + .... | + | + 16bit value array | + +===============+ | + | value | <-------+ + .... + */ + static GXV_LookupValueDesc + gxv_XClassTable_lookupfmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + static void + gxv_XStateArray_validate( FT_Bytes table, + FT_ULong* length_p, + FT_UShort maxClassID, + FT_ULong stateSize, + FT_UShort* maxState_p, + FT_UShort* maxEntry_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_UShort clazz; + FT_UShort entry; + + FT_UNUSED( stateSize ); /* for the non-debugging case */ + + + GXV_NAME_ENTER( "XStateArray" ); + + GXV_TRACE(( "parse % 3d bytes by stateSize=% 3d maxClassID=% 3d\n", + (int)(*length_p), stateSize, (int)(maxClassID) )); + + /* + * 2 states are predefined and must be described: + * state 0 (start of text), 1 (start of line) + */ + GXV_LIMIT_CHECK( ( 1 + maxClassID ) * 2 * 2 ); + + *maxState_p = 0; + *maxEntry_p = 0; + + /* read if enough to read another state */ + while ( p + ( ( 1 + maxClassID ) * 2 ) <= limit ) + { + (*maxState_p)++; + for ( clazz = 0; clazz <= maxClassID; clazz++ ) + { + entry = FT_NEXT_USHORT( p ); + *maxEntry_p = (FT_UShort)FT_MAX( *maxEntry_p, entry ); + } + } + GXV_TRACE(( "parsed: maxState=%d, maxEntry=%d\n", + *maxState_p, *maxEntry_p )); + + *length_p = p - table; + + GXV_EXIT; + } + + + static void + gxv_XEntryTable_validate( FT_Bytes table, + FT_ULong* length_p, + FT_UShort maxEntry, + FT_ULong stateArray_length, + FT_UShort maxClassID, + FT_Bytes xstatetable_table, + FT_Bytes xstatetable_limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_UShort entry; + FT_UShort state; + FT_Int entrySize = 2 + 2 + GXV_GLYPHOFFSET_SIZE( xstatetable ); + + + GXV_NAME_ENTER( "XEntryTable" ); + GXV_TRACE(( "maxEntry=%d entrySize=%d\n", maxEntry, entrySize )); + + if ( ( p + ( maxEntry + 1 ) * entrySize ) > limit ) + FT_INVALID_TOO_SHORT; + + for (entry = 0; entry <= maxEntry ; entry++ ) + { + FT_UShort newState_idx; + FT_UShort flags; + GXV_XStateTable_GlyphOffsetDesc glyphOffset; + + + GXV_LIMIT_CHECK( 2 + 2 ); + newState_idx = FT_NEXT_USHORT( p ); + flags = FT_NEXT_USHORT( p ); + + if ( stateArray_length < (FT_ULong)( newState_idx * 2 ) ) + { + GXV_TRACE(( " newState index 0x%04x points out of stateArray\n", + newState_idx )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + + state = (FT_UShort)( newState_idx / ( 1 + maxClassID ) ); + if ( 0 != ( newState_idx % ( 1 + maxClassID ) ) ) + { + FT_TRACE4(( "-> new state = %d (supposed)\n" + "but newState index 0x%04x is not aligned to %d-classes\n", + state, newState_idx, 1 + maxClassID )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + + switch ( GXV_GLYPHOFFSET_FMT( xstatetable ) ) + { + case GXV_GLYPHOFFSET_NONE: + glyphOffset.uc = 0; /* make compiler happy */ + break; + + case GXV_GLYPHOFFSET_UCHAR: + glyphOffset.uc = FT_NEXT_BYTE( p ); + break; + + case GXV_GLYPHOFFSET_CHAR: + glyphOffset.c = FT_NEXT_CHAR( p ); + break; + + case GXV_GLYPHOFFSET_USHORT: + glyphOffset.u = FT_NEXT_USHORT( p ); + break; + + case GXV_GLYPHOFFSET_SHORT: + glyphOffset.s = FT_NEXT_SHORT( p ); + break; + + case GXV_GLYPHOFFSET_ULONG: + glyphOffset.ul = FT_NEXT_ULONG( p ); + break; + + case GXV_GLYPHOFFSET_LONG: + glyphOffset.l = FT_NEXT_LONG( p ); + break; + + default: + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + goto Exit; + } + + if ( NULL != valid->xstatetable.entry_validate_func ) + valid->xstatetable.entry_validate_func( state, + flags, + &glyphOffset, + xstatetable_table, + xstatetable_limit, + valid ); + } + + Exit: + *length_p = p - table; + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_XStateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + /* StateHeader members */ + FT_ULong classTable; /* offset to Class(Sub)Table */ + FT_ULong stateArray; /* offset to StateArray */ + FT_ULong entryTable; /* offset to EntryTable */ + + FT_ULong classTable_length; + FT_ULong stateArray_length; + FT_ULong entryTable_length; + FT_UShort maxState; + FT_UShort maxEntry; + + GXV_XStateTable_Subtable_Setup_Func setup_func; + + FT_Bytes p = table; + + + GXV_NAME_ENTER( "XStateTable" ); + + GXV_TRACE(( "XStateTable header\n" )); + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 ); + valid->xstatetable.nClasses = FT_NEXT_ULONG( p ); + classTable = FT_NEXT_ULONG( p ); + stateArray = FT_NEXT_ULONG( p ); + entryTable = FT_NEXT_ULONG( p ); + + GXV_TRACE(( "nClasses =0x%08x\n", valid->xstatetable.nClasses )); + GXV_TRACE(( "offset to classTable=0x%08x\n", classTable )); + GXV_TRACE(( "offset to stateArray=0x%08x\n", stateArray )); + GXV_TRACE(( "offset to entryTable=0x%08x\n", entryTable )); + + if ( valid->xstatetable.nClasses > 0xFFFFU ) + FT_INVALID_DATA; + + GXV_TRACE(( "StateTable Subtables\n" )); + + if ( valid->xstatetable.optdata_load_func != NULL ) + valid->xstatetable.optdata_load_func( p, limit, valid ); + + if ( valid->xstatetable.subtable_setup_func != NULL ) + setup_func = valid->xstatetable.subtable_setup_func; + else + setup_func = gxv_XStateTable_subtable_setup; + + setup_func( limit - table, + classTable, + stateArray, + entryTable, + &classTable_length, + &stateArray_length, + &entryTable_length, + valid ); + + if ( classTable != 0 ) + { + valid->xstatetable.maxClassID = 0; + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_XClassTable_lookupval_validate; + valid->lookupfmt4_trans = gxv_XClassTable_lookupfmt4_transit; + gxv_LookupTable_validate( table + classTable, + table + classTable + classTable_length, + valid ); + if ( valid->subtable_length < classTable_length ) + classTable_length = valid->subtable_length; + } + else + { + /* XXX: check range? */ + valid->xstatetable.maxClassID = + (FT_UShort)( valid->xstatetable.nClasses - 1 ); + } + + if ( stateArray != 0 ) + gxv_XStateArray_validate( table + stateArray, + &stateArray_length, + valid->xstatetable.maxClassID, + valid->xstatetable.nClasses, + &maxState, + &maxEntry, + valid ); + else + { + maxState = 1; /* 0:start of text, 1:start of line are predefined */ + maxEntry = 0; + } + + if ( maxEntry > 0 && entryTable == 0 ) + FT_INVALID_OFFSET; + + if ( entryTable != 0 ) + gxv_XEntryTable_validate( table + entryTable, + &entryTable_length, + maxEntry, + stateArray_length, + valid->xstatetable.maxClassID, + table, + limit, + valid ); + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Table overlapping *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static int + gxv_compare_ranges( FT_Bytes table1_start, + FT_ULong table1_length, + FT_Bytes table2_start, + FT_ULong table2_length ) + { + if ( table1_start == table2_start ) + { + if ( ( table1_length == 0 || table2_length == 0 ) ) + goto Out; + } + else if ( table1_start < table2_start ) + { + if ( ( table1_start + table1_length ) <= table2_start ) + goto Out; + } + else if ( table1_start > table2_start ) + { + if ( ( table1_start >= table2_start + table2_length ) ) + goto Out; + } + return 1; + + Out: + return 0; + } + + + FT_LOCAL_DEF( void ) + gxv_odtect_add_range( FT_Bytes start, + FT_ULong length, + const FT_String* name, + GXV_odtect_Range odtect ) + { + odtect->range[ odtect->nRanges ].start = start; + odtect->range[ odtect->nRanges ].length = length; + odtect->range[ odtect->nRanges ].name = (FT_String*)name; + odtect->nRanges++; + } + + + FT_LOCAL_DEF( void ) + gxv_odtect_validate( GXV_odtect_Range odtect, + GXV_Validator valid ) + { + FT_UInt i, j; + + + GXV_NAME_ENTER( "check overlap among multi ranges" ); + + for ( i = 0; i < odtect->nRanges; i++ ) + for ( j = 0; j < i; j++ ) + if ( 0 != gxv_compare_ranges( odtect->range[i].start, + odtect->range[i].length, + odtect->range[j].start, + odtect->range[j].length ) ) + { + if ( odtect->range[i].name || odtect->range[j].name ) + GXV_TRACE(( "found overlap between range %d and range %d\n", + i, j )); + else + GXV_TRACE(( "found overlap between `%s' and `%s\'\n", + odtect->range[i].name, + odtect->range[j].name )); + FT_INVALID_OFFSET; + } + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvcommn.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvcommn.h new file mode 100644 index 000000000..c790458d9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvcommn.h @@ -0,0 +1,581 @@ +/***************************************************************************/ +/* */ +/* gxvcommn.h */ +/* */ +/* TrueTypeGX/AAT common tables validation (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + + /* + * keywords in variable naming + * --------------------------- + * table: Of type FT_Bytes, pointing to the start of this table/subtable. + * limit: Of type FT_Bytes, pointing to the end of this table/subtable, + * including padding for alignment. + * offset: Of type FT_UInt, the number of octets from the start to target. + * length: Of type FT_UInt, the number of octets from the start to the + * end in this table/subtable, including padding for alignment. + * + * _MIN, _MAX: Should be added to the tail of macros, as INT_MIN, etc. + */ + + +#ifndef __GXVCOMMN_H__ +#define __GXVCOMMN_H__ + + +#include <freetype/ft2build.h> +#include "gxvalid.h" +#include FT_INTERNAL_DEBUG_H +#include FT_SFNT_NAMES_H + + +FT_BEGIN_HEADER + + + /* some variables are not evaluated or only used in trace */ + +#ifdef FT_DEBUG_LEVEL_TRACE +#define GXV_LOAD_TRACE_VARS +#else +#undef GXV_LOAD_TRACE_VARS +#endif + +#undef GXV_LOAD_UNUSED_VARS /* debug purpose */ + +#define IS_PARANOID_VALIDATION ( valid->root->level >= FT_VALIDATE_PARANOID ) +#define GXV_SET_ERR_IF_PARANOID( err ) { if ( IS_PARANOID_VALIDATION ) ( err ); } + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** VALIDATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_ValidatorRec_* GXV_Validator; + + +#define DUMMY_LIMIT 0 + + typedef void + (*GXV_Validate_Func)( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + + /* ====================== LookupTable Validator ======================== */ + + typedef union GXV_LookupValueDesc_ + { + FT_UShort u; + FT_Short s; + + } GXV_LookupValueDesc; + + typedef const GXV_LookupValueDesc* GXV_LookupValueCPtr; + + typedef enum GXV_LookupValue_SignSpec_ + { + GXV_LOOKUPVALUE_UNSIGNED = 0, + GXV_LOOKUPVALUE_SIGNED + + } GXV_LookupValue_SignSpec; + + + typedef void + (*GXV_Lookup_Value_Validate_Func)( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ); + + typedef GXV_LookupValueDesc + (*GXV_Lookup_Fmt4_Transit_Func)( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ); + + + /* ====================== StateTable Validator ========================= */ + + typedef enum GXV_GlyphOffset_Format_ + { + GXV_GLYPHOFFSET_NONE = -1, + GXV_GLYPHOFFSET_UCHAR = 2, + GXV_GLYPHOFFSET_CHAR, + GXV_GLYPHOFFSET_USHORT = 4, + GXV_GLYPHOFFSET_SHORT, + GXV_GLYPHOFFSET_ULONG = 8, + GXV_GLYPHOFFSET_LONG + + } GXV_GlyphOffset_Format; + + +#define GXV_GLYPHOFFSET_FMT( table ) \ + ( valid->table.entry_glyphoffset_fmt ) + +#define GXV_GLYPHOFFSET_SIZE( table ) \ + ( valid->table.entry_glyphoffset_fmt / 2 ) + + + /* ----------------------- 16bit StateTable ---------------------------- */ + + typedef union GXV_StateTable_GlyphOffsetDesc_ + { + FT_Byte uc; + FT_UShort u; /* same as GXV_LookupValueDesc */ + FT_ULong ul; + FT_Char c; + FT_Short s; /* same as GXV_LookupValueDesc */ + FT_Long l; + + } GXV_StateTable_GlyphOffsetDesc; + + typedef const GXV_StateTable_GlyphOffsetDesc* GXV_StateTable_GlyphOffsetCPtr; + + typedef void + (*GXV_StateTable_Subtable_Setup_Func)( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ); + + typedef void + (*GXV_StateTable_Entry_Validate_Func)( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes statetable_table, + FT_Bytes statetable_limit, + GXV_Validator valid ); + + typedef void + (*GXV_StateTable_OptData_Load_Func)( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + typedef struct GXV_StateTable_ValidatorRec_ + { + GXV_GlyphOffset_Format entry_glyphoffset_fmt; + void* optdata; + + GXV_StateTable_Subtable_Setup_Func subtable_setup_func; + GXV_StateTable_Entry_Validate_Func entry_validate_func; + GXV_StateTable_OptData_Load_Func optdata_load_func; + + } GXV_StateTable_ValidatorRec, *GXV_StateTable_ValidatorRecData; + + + /* ---------------------- 32bit XStateTable ---------------------------- */ + + typedef GXV_StateTable_GlyphOffsetDesc GXV_XStateTable_GlyphOffsetDesc; + + typedef const GXV_XStateTable_GlyphOffsetDesc* GXV_XStateTable_GlyphOffsetCPtr; + + typedef void + (*GXV_XStateTable_Subtable_Setup_Func)( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ); + + typedef void + (*GXV_XStateTable_Entry_Validate_Func)( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes xstatetable_table, + FT_Bytes xstatetable_limit, + GXV_Validator valid ); + + + typedef GXV_StateTable_OptData_Load_Func GXV_XStateTable_OptData_Load_Func; + + + typedef struct GXV_XStateTable_ValidatorRec_ + { + int entry_glyphoffset_fmt; + void* optdata; + + GXV_XStateTable_Subtable_Setup_Func subtable_setup_func; + GXV_XStateTable_Entry_Validate_Func entry_validate_func; + GXV_XStateTable_OptData_Load_Func optdata_load_func; + + FT_ULong nClasses; + FT_UShort maxClassID; + + } GXV_XStateTable_ValidatorRec, *GXV_XStateTable_ValidatorRecData; + + + /* ===================================================================== */ + + typedef struct GXV_ValidatorRec_ + { + FT_Validator root; + + FT_Face face; + void* table_data; + + FT_ULong subtable_length; + + GXV_LookupValue_SignSpec lookupval_sign; + GXV_Lookup_Value_Validate_Func lookupval_func; + GXV_Lookup_Fmt4_Transit_Func lookupfmt4_trans; + FT_Bytes lookuptbl_head; + + FT_UShort min_gid; + FT_UShort max_gid; + + GXV_StateTable_ValidatorRec statetable; + GXV_XStateTable_ValidatorRec xstatetable; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_UInt debug_indent; + const FT_String* debug_function_name[3]; +#endif + + } GXV_ValidatorRec; + + +#define GXV_TABLE_DATA( tag, field ) \ + ( ( (GXV_ ## tag ## _Data)valid->table_data )->field ) + +#undef FT_INVALID_ +#define FT_INVALID_( _prefix, _error ) \ + ft_validator_error( valid->root, _prefix ## _error ) + +#define GXV_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ + if ( p + _count > ( limit? limit : valid->root->limit ) ) \ + FT_INVALID_TOO_SHORT; \ + FT_END_STMNT + + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define GXV_INIT valid->debug_indent = 0 + +#define GXV_NAME_ENTER( name ) \ + FT_BEGIN_STMNT \ + valid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4(( "%s table\n", name )); \ + FT_END_STMNT + +#define GXV_EXIT valid->debug_indent -= 2 + +#define GXV_TRACE( s ) \ + FT_BEGIN_STMNT \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4( s ); \ + FT_END_STMNT + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define GXV_INIT do { } while ( 0 ) +#define GXV_NAME_ENTER( name ) do { } while ( 0 ) +#define GXV_EXIT do { } while ( 0 ) + +#define GXV_TRACE( s ) do { } while ( 0 ) + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** 32bit alignment checking *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_32BIT_ALIGNMENT_VALIDATE( a ) \ + FT_BEGIN_STMNT \ + { \ + if ( 0 != ( (a) % 4 ) ) \ + FT_INVALID_OFFSET ; \ + } \ + FT_END_STMNT + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Dumping Binary Data *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_TRACE_HEXDUMP( p, len ) \ + FT_BEGIN_STMNT \ + { \ + FT_Bytes b; \ + \ + \ + for ( b = p; b < (FT_Bytes)p + len; b++ ) \ + FT_TRACE1(("\\x%02x", *b)) ; \ + } \ + FT_END_STMNT + +#define GXV_TRACE_HEXDUMP_C( p, len ) \ + FT_BEGIN_STMNT \ + { \ + FT_Bytes b; \ + \ + \ + for ( b = p; b < (FT_Bytes)p + len; b++ ) \ + if ( 0x40 < *b && *b < 0x7e ) \ + FT_TRACE1(("%c", *b)) ; \ + else \ + FT_TRACE1(("\\x%02x", *b)) ; \ + } \ + FT_END_STMNT + +#define GXV_TRACE_HEXDUMP_SFNTNAME( n ) \ + GXV_TRACE_HEXDUMP( n.string, n.string_len ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUP TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_BinSrchHeader_validate( FT_Bytes p, + FT_Bytes limit, + FT_UShort* unitSize_p, + FT_UShort* nUnits_p, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_LookupTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Glyph ID *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( FT_Int ) + gxv_glyphid_validate( FT_UShort gid, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CONTROL POINT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_ctlPoint_validate( FT_UShort gid, + FT_Short ctl_point, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SFNT NAME *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_sfntName_validate( FT_UShort name_index, + FT_UShort min_index, + FT_UShort max_index, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STATE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_StateTable_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_XStateTable_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_StateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_XStateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY MACROS AND FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_array_getlimits_byte( FT_Bytes table, + FT_Bytes limit, + FT_Byte* min, + FT_Byte* max, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_array_getlimits_ushort( FT_Bytes table, + FT_Bytes limit, + FT_UShort* min, + FT_UShort* max, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_set_length_by_ushort_offset( FT_UShort* offset, + FT_UShort** length, + FT_UShort* buff, + FT_UInt nmemb, + FT_UShort limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_set_length_by_ulong_offset( FT_ULong* offset, + FT_ULong** length, + FT_ULong* buff, + FT_UInt nmemb, + FT_ULong limit, + GXV_Validator valid); + + +#define GXV_SUBTABLE_OFFSET_CHECK( _offset ) \ + FT_BEGIN_STMNT \ + if ( (_offset) > valid->subtable_length ) \ + FT_INVALID_OFFSET; \ + FT_END_STMNT + +#define GXV_SUBTABLE_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ + if ( ( p + (_count) - valid->subtable_start ) > \ + valid->subtable_length ) \ + FT_INVALID_TOO_SHORT; \ + FT_END_STMNT + +#define GXV_USHORT_TO_SHORT( _us ) \ + ( ( 0x8000U < ( _us ) ) ? ( ( _us ) - 0x8000U ) : ( _us ) ) + +#define GXV_STATETABLE_HEADER_SIZE ( 2 + 2 + 2 + 2 ) +#define GXV_STATEHEADER_SIZE GXV_STATETABLE_HEADER_SIZE + +#define GXV_XSTATETABLE_HEADER_SIZE ( 4 + 4 + 4 + 4 ) +#define GXV_XSTATEHEADER_SIZE GXV_XSTATETABLE_HEADER_SIZE + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Table overlapping *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_odtect_DataRec_ + { + FT_Bytes start; + FT_ULong length; + FT_String* name; + + } GXV_odtect_DataRec, *GXV_odtect_Data; + + typedef struct GXV_odtect_RangeRec_ + { + FT_UInt nRanges; + GXV_odtect_Data range; + + } GXV_odtect_RangeRec, *GXV_odtect_Range; + + + FT_LOCAL( void ) + gxv_odtect_add_range( FT_Bytes start, + FT_ULong length, + const FT_String* name, + GXV_odtect_Range odtect ); + + FT_LOCAL( void ) + gxv_odtect_validate( GXV_odtect_Range odtect, + GXV_Validator valid ); + + +#define GXV_ODTECT( n, odtect ) \ + GXV_odtect_DataRec odtect ## _range[n]; \ + GXV_odtect_RangeRec odtect ## _rec = { 0, NULL }; \ + GXV_odtect_Range odtect = NULL + +#define GXV_ODTECT_INIT( odtect ) \ + FT_BEGIN_STMNT \ + odtect ## _rec.nRanges = 0; \ + odtect ## _rec.range = odtect ## _range; \ + odtect = & odtect ## _rec; \ + FT_END_STMNT + + + /* */ + +FT_END_HEADER + +#endif /* __GXVCOMMN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxverror.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxverror.h new file mode 100644 index 000000000..019619922 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxverror.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* gxverror.h */ +/* */ +/* TrueTypeGX/AAT validation module error codes (specification only). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the OpenType validation module error */ + /* enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __GXVERROR_H__ +#define __GXVERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX GXV_Err_ +#define FT_ERR_BASE FT_Mod_Err_GXV + +#define FT_KEEP_ERR_PREFIX + +#include FT_ERRORS_H + +#endif /* __GXVERROR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfeat.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfeat.c new file mode 100644 index 000000000..46792bbf9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfeat.c @@ -0,0 +1,339 @@ +/***************************************************************************/ +/* */ +/* gxvfeat.c */ +/* */ +/* TrueTypeGX/AAT feat table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2008 by */ +/* suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" +#include "gxvfeat.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvfeat + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_feat_DataRec_ + { + FT_UInt reserved_size; + FT_UShort feature; + FT_UShort setting; + + } GXV_feat_DataRec, *GXV_feat_Data; + + +#define GXV_FEAT_DATA( field ) GXV_TABLE_DATA( feat, field ) + + + typedef enum GXV_FeatureFlagsMask_ + { + GXV_FEAT_MASK_EXCLUSIVE_SETTINGS = 0x8000U, + GXV_FEAT_MASK_DYNAMIC_DEFAULT = 0x4000, + GXV_FEAT_MASK_UNUSED = 0x3F00, + GXV_FEAT_MASK_DEFAULT_SETTING = 0x00FF + + } GXV_FeatureFlagsMask; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_feat_registry_validate( FT_UShort feature, + FT_UShort nSettings, + FT_Bool exclusive, + GXV_Validator valid ) + { + GXV_NAME_ENTER( "feature in registry" ); + + GXV_TRACE(( " (feature = %u)\n", feature )); + + if ( feature >= gxv_feat_registry_length ) + { + GXV_TRACE(( "feature number %d is out of range %d\n", + feature, gxv_feat_registry_length )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + goto Exit; + } + + if ( gxv_feat_registry[feature].existence == 0 ) + { + GXV_TRACE(( "feature number %d is in defined range but doesn't exist\n", + feature )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + goto Exit; + } + + if ( gxv_feat_registry[feature].apple_reserved ) + { + /* Don't use here. Apple is reserved. */ + GXV_TRACE(( "feature number %d is reserved by Apple\n", feature )); + if ( valid->root->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + } + + if ( nSettings != gxv_feat_registry[feature].nSettings ) + { + GXV_TRACE(( "feature %d: nSettings %d != defined nSettings %d\n", + feature, nSettings, + gxv_feat_registry[feature].nSettings )); + if ( valid->root->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + } + + if ( exclusive != gxv_feat_registry[feature].exclusive ) + { + GXV_TRACE(( "exclusive flag %d differs from predefined value\n", + exclusive )); + if ( valid->root->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + } + + Exit: + GXV_EXIT; + } + + + static void + gxv_feat_name_index_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + FT_Short nameIndex; + + + GXV_NAME_ENTER( "nameIndex" ); + + GXV_LIMIT_CHECK( 2 ); + nameIndex = FT_NEXT_SHORT ( p ); + GXV_TRACE(( " (nameIndex = %d)\n", nameIndex )); + + gxv_sfntName_validate( (FT_UShort)nameIndex, + 255, + 32768U, + valid ); + + GXV_EXIT; + } + + + static void + gxv_feat_setting_validate( FT_Bytes table, + FT_Bytes limit, + FT_Bool exclusive, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort setting; + + + GXV_NAME_ENTER( "setting" ); + + GXV_LIMIT_CHECK( 2 ); + + setting = FT_NEXT_USHORT( p ); + + /* If we have exclusive setting, the setting should be odd. */ + if ( exclusive && ( setting % 2 ) == 0 ) + FT_INVALID_DATA; + + gxv_feat_name_index_validate( p, limit, valid ); + + GXV_FEAT_DATA( setting ) = setting; + + GXV_EXIT; + } + + + static void + gxv_feat_name_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt reserved_size = GXV_FEAT_DATA( reserved_size ); + + FT_UShort feature; + FT_UShort nSettings; + FT_ULong settingTable; + FT_UShort featureFlags; + + FT_Bool exclusive; + FT_Int last_setting; + FT_UInt i; + + + GXV_NAME_ENTER( "name" ); + + /* feature + nSettings + settingTable + featureFlags */ + GXV_LIMIT_CHECK( 2 + 2 + 4 + 2 ); + + feature = FT_NEXT_USHORT( p ); + GXV_FEAT_DATA( feature ) = feature; + + nSettings = FT_NEXT_USHORT( p ); + settingTable = FT_NEXT_ULONG ( p ); + featureFlags = FT_NEXT_USHORT( p ); + + if ( settingTable < reserved_size ) + FT_INVALID_OFFSET; + + if ( ( featureFlags & GXV_FEAT_MASK_UNUSED ) == 0 ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + + exclusive = FT_BOOL( featureFlags & GXV_FEAT_MASK_EXCLUSIVE_SETTINGS ); + if ( exclusive ) + { + FT_Byte dynamic_default; + + + if ( featureFlags & GXV_FEAT_MASK_DYNAMIC_DEFAULT ) + dynamic_default = (FT_Byte)( featureFlags & + GXV_FEAT_MASK_DEFAULT_SETTING ); + else + dynamic_default = 0; + + /* If exclusive, check whether default setting is in the range. */ + if ( !( dynamic_default < nSettings ) ) + FT_INVALID_FORMAT; + } + + gxv_feat_registry_validate( feature, nSettings, exclusive, valid ); + + gxv_feat_name_index_validate( p, limit, valid ); + + p = valid->root->base + settingTable; + for ( last_setting = -1, i = 0; i < nSettings; i++ ) + { + gxv_feat_setting_validate( p, limit, exclusive, valid ); + + if ( (FT_Int)GXV_FEAT_DATA( setting ) <= last_setting ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + + last_setting = (FT_Int)GXV_FEAT_DATA( setting ); + /* setting + nameIndex */ + p += ( 2 + 2 ); + } + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** feat TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_feat_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_feat_DataRec featrec; + GXV_feat_Data feat = &featrec; + + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_UInt featureNameCount; + + FT_UInt i; + FT_Int last_feature; + + + valid->root = ftvalid; + valid->table_data = feat; + valid->face = face; + + FT_TRACE3(( "validating `feat' table\n" )); + GXV_INIT; + + feat->reserved_size = 0; + + /* version + featureNameCount + none_0 + none_1 */ + GXV_LIMIT_CHECK( 4 + 2 + 2 + 4 ); + feat->reserved_size += 4 + 2 + 2 + 4; + + if ( FT_NEXT_ULONG( p ) != 0x00010000UL ) /* Version */ + FT_INVALID_FORMAT; + + featureNameCount = FT_NEXT_USHORT( p ); + GXV_TRACE(( " (featureNameCount = %d)\n", featureNameCount )); + + if ( !( IS_PARANOID_VALIDATION ) ) + p += 6; /* skip (none) and (none) */ + else + { + if ( FT_NEXT_USHORT( p ) != 0 ) + FT_INVALID_DATA; + + if ( FT_NEXT_ULONG( p ) != 0 ) + FT_INVALID_DATA; + } + + feat->reserved_size += featureNameCount * ( 2 + 2 + 4 + 2 + 2 ); + + for ( last_feature = -1, i = 0; i < featureNameCount; i++ ) + { + gxv_feat_name_validate( p, limit, valid ); + + if ( (FT_Int)GXV_FEAT_DATA( feature ) <= last_feature ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + + last_feature = GXV_FEAT_DATA( feature ); + p += 2 + 2 + 4 + 2 + 2; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfeat.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfeat.h new file mode 100644 index 000000000..049d23a0b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfeat.h @@ -0,0 +1,172 @@ +/***************************************************************************/ +/* */ +/* gxvfeat.h */ +/* */ +/* TrueTypeGX/AAT feat table validation (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVFEAT_H__ +#define __GXVFEAT_H__ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Registry predefined by Apple *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* TODO: More compact format */ + typedef struct GXV_Feature_RegistryRec_ + { + FT_Bool existence; + FT_Bool apple_reserved; + FT_Bool exclusive; + FT_Byte nSettings; + + } GX_Feature_RegistryRec; + + +#define gxv_feat_registry_length \ + ( sizeof ( gxv_feat_registry ) / \ + sizeof ( GX_Feature_RegistryRec ) ) + + + static GX_Feature_RegistryRec gxv_feat_registry[] = + { + /* Generated from gxvfgen.c */ + {1, 0, 0, 1}, /* All Typographic Features */ + {1, 0, 0, 8}, /* Ligatures */ + {1, 0, 1, 3}, /* Cursive Connection */ + {1, 0, 1, 6}, /* Letter Case */ + {1, 0, 0, 1}, /* Vertical Substitution */ + {1, 0, 0, 1}, /* Linguistic Rearrangement */ + {1, 0, 1, 2}, /* Number Spacing */ + {1, 1, 0, 0}, /* Apple Reserved 1 */ + {1, 0, 0, 5}, /* Smart Swashes */ + {1, 0, 1, 3}, /* Diacritics */ + {1, 0, 1, 4}, /* Vertical Position */ + {1, 0, 1, 3}, /* Fractions */ + {1, 1, 0, 0}, /* Apple Reserved 2 */ + {1, 0, 0, 1}, /* Overlapping Characters */ + {1, 0, 0, 6}, /* Typographic Extras */ + {1, 0, 0, 5}, /* Mathematical Extras */ + {1, 0, 1, 7}, /* Ornament Sets */ + {1, 0, 1, 1}, /* Character Alternatives */ + {1, 0, 1, 5}, /* Design Complexity */ + {1, 0, 1, 6}, /* Style Options */ + {1, 0, 1, 11}, /* Character Shape */ + {1, 0, 1, 2}, /* Number Case */ + {1, 0, 1, 4}, /* Text Spacing */ + {1, 0, 1, 10}, /* Transliteration */ + {1, 0, 1, 9}, /* Annotation */ + {1, 0, 1, 2}, /* Kana Spacing */ + {1, 0, 1, 2}, /* Ideographic Spacing */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {1, 0, 1, 4}, /* Text Spacing */ + {1, 0, 1, 2}, /* Kana Spacing */ + {1, 0, 1, 2}, /* Ideographic Spacing */ + {1, 0, 1, 4}, /* CJK Roman Spacing */ + }; + + +#endif /* __GXVFEAT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfgen.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfgen.c new file mode 100644 index 000000000..e48778a2a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvfgen.c @@ -0,0 +1,482 @@ +/***************************************************************************/ +/* */ +/* gxfgen.c */ +/* */ +/* Generate feature registry data for gxv `feat' validator. */ +/* This program is derived from gxfeatreg.c in gxlayout. */ +/* */ +/* Copyright 2004, 2005, 2006 by Masatake YAMATO and Redhat K.K. */ +/* */ +/* This file may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxfeatreg.c */ +/* */ +/* Database of font features pre-defined by Apple Computer, Inc. */ +/* http://developer.apple.com/fonts/Registry/ */ +/* (body). */ +/* */ +/* Copyright 2003 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* This file may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* Development of gxfeatreg.c is supported by */ +/* Information-technology Promotion Agency, Japan. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* This file is compiled as a stand-alone executable. */ +/* This file is never compiled into `libfreetype2'. */ +/* The output of this file is used in `gxvfeat.c'. */ +/* ----------------------------------------------------------------------- */ +/* Compile: gcc `pkg-config --cflags freetype2` gxvfgen.c -o gxvfgen */ +/* Run: ./gxvfgen > tmp.c */ +/* */ +/***************************************************************************/ + + /*******************************************************************/ + /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING */ + /*******************************************************************/ + + /* + * If you add a new setting to a feature, check the number of settings + * in the feature. If the number is greater than the value defined as + * FEATREG_MAX_SETTING, update the value. + */ +#define FEATREG_MAX_SETTING 12 + + /*******************************************************************/ + /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING */ + /*******************************************************************/ + + +#include <stdio.h> +#include <string.h> + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define APPLE_RESERVED "Apple Reserved" +#define APPLE_RESERVED_LENGTH 14 + + typedef struct GX_Feature_RegistryRec_ + { + const char* feat_name; + char exclusive; + char* setting_name[FEATREG_MAX_SETTING]; + + } GX_Feature_RegistryRec; + + +#define EMPTYFEAT {0, 0, {NULL}} + + + static GX_Feature_RegistryRec featreg_table[] = { + { /* 0 */ + "All Typographic Features", + 0, + { + "All Type Features", + NULL + } + }, { /* 1 */ + "Ligatures", + 0, + { + "Required Ligatures", + "Common Ligatures", + "Rare Ligatures", + "Logos", + "Rebus Pictures", + "Diphthong Ligatures", + "Squared Ligatures", + "Squared Ligatures, Abbreviated", + NULL + } + }, { /* 2 */ + "Cursive Connection", + 1, + { + "Unconnected", + "Partially Connected", + "Cursive", + NULL + } + }, { /* 3 */ + "Letter Case", + 1, + { + "Upper & Lower Case", + "All Caps", + "All Lower Case", + "Small Caps", + "Initial Caps", + "Initial Caps & Small Caps", + NULL + } + }, { /* 4 */ + "Vertical Substitution", + 0, + { + /* "Substitute Vertical Forms", */ + "Turns on the feature", + NULL + } + }, { /* 5 */ + "Linguistic Rearrangement", + 0, + { + /* "Linguistic Rearrangement", */ + "Turns on the feature", + NULL + } + }, { /* 6 */ + "Number Spacing", + 1, + { + "Monospaced Numbers", + "Proportional Numbers", + NULL + } + }, { /* 7 */ + APPLE_RESERVED " 1", + 0, + {NULL} + }, { /* 8 */ + "Smart Swashes", + 0, + { + "Word Initial Swashes", + "Word Final Swashes", + "Line Initial Swashes", + "Line Final Swashes", + "Non-Final Swashes", + NULL + } + }, { /* 9 */ + "Diacritics", + 1, + { + "Show Diacritics", + "Hide Diacritics", + "Decompose Diacritics", + NULL + } + }, { /* 10 */ + "Vertical Position", + 1, + { + /* "Normal Position", */ + "No Vertical Position", + "Superiors", + "Inferiors", + "Ordinals", + NULL + } + }, { /* 11 */ + "Fractions", + 1, + { + "No Fractions", + "Vertical Fractions", + "Diagonal Fractions", + NULL + } + }, { /* 12 */ + APPLE_RESERVED " 2", + 0, + {NULL} + }, { /* 13 */ + "Overlapping Characters", + 0, + { + /* "Prevent Overlap", */ + "Turns on the feature", + NULL + } + }, { /* 14 */ + "Typographic Extras", + 0, + { + "Hyphens to Em Dash", + "Hyphens to En Dash", + "Unslashed Zero", + "Form Interrobang", + "Smart Quotes", + "Periods to Ellipsis", + NULL + } + }, { /* 15 */ + "Mathematical Extras", + 0, + { + "Hyphens to Minus", + "Asterisk to Multiply", + "Slash to Divide", + "Inequality Ligatures", + "Exponents", + NULL + } + }, { /* 16 */ + "Ornament Sets", + 1, + { + "No Ornaments", + "Dingbats", + "Pi Characters", + "Fleurons", + "Decorative Borders", + "International Symbols", + "Math Symbols", + NULL + } + }, { /* 17 */ + "Character Alternatives", + 1, + { + "No Alternates", + /* TODO */ + NULL + } + }, { /* 18 */ + "Design Complexity", + 1, + { + "Design Level 1", + "Design Level 2", + "Design Level 3", + "Design Level 4", + "Design Level 5", + /* TODO */ + NULL + } + }, { /* 19 */ + "Style Options", + 1, + { + "No Style Options", + "Display Text", + "Engraved Text", + "Illuminated Caps", + "Tilling Caps", + "Tall Caps", + NULL + } + }, { /* 20 */ + "Character Shape", + 1, + { + "Traditional Characters", + "Simplified Characters", + "JIS 1978 Characters", + "JIS 1983 Characters", + "JIS 1990 Characters", + "Traditional Characters, Alternative Set 1", + "Traditional Characters, Alternative Set 2", + "Traditional Characters, Alternative Set 3", + "Traditional Characters, Alternative Set 4", + "Traditional Characters, Alternative Set 5", + "Expert Characters", + NULL /* count => 12 */ + } + }, { /* 21 */ + "Number Case", + 1, + { + "Lower Case Numbers", + "Upper Case Numbers", + NULL + } + }, { /* 22 */ + "Text Spacing", + 1, + { + "Proportional", + "Monospaced", + "Half-width", + "Normal", + NULL + } + }, /* Here after Newer */ { /* 23 */ + "Transliteration", + 1, + { + "No Transliteration", + "Hanja To Hangul", + "Hiragana to Katakana", + "Katakana to Hiragana", + "Kana to Romanization", + "Romanization to Hiragana", + "Romanization to Katakana", + "Hanja to Hangul, Alternative Set 1", + "Hanja to Hangul, Alternative Set 2", + "Hanja to Hangul, Alternative Set 3", + NULL + } + }, { /* 24 */ + "Annotation", + 1, + { + "No Annotation", + "Box Annotation", + "Rounded Box Annotation", + "Circle Annotation", + "Inverted Circle Annotation", + "Parenthesis Annotation", + "Period Annotation", + "Roman Numeral Annotation", + "Diamond Annotation", + NULL + } + }, { /* 25 */ + "Kana Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, { /* 26 */ + "Ideographic Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 27-30 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 31-35 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 36-40 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 40-45 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 46-50 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 51-55 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 56-60 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 61-65 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 66-70 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 71-75 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 76-80 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 81-85 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 86-90 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 91-95 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 96-98 */ + EMPTYFEAT, /* 99 */ { /* 100 => 22 */ + "Text Spacing", + 1, + { + "Proportional", + "Monospaced", + "Half-width", + "Normal", + NULL + } + }, { /* 101 => 25 */ + "Kana Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, { /* 102 => 26 */ + "Ideographic Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, { /* 103 */ + "CJK Roman Spacing", + 1, + { + "Half-width", + "Proportional", + "Default Roman", + "Full-width Roman", + NULL + } + }, { /* 104 => 1 */ + "All Typographic Features", + 0, + { + "All Type Features", + NULL + } + } + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Generator *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + int + main( void ) + { + int i; + + + printf( " {\n" ); + printf( " /* Generated from %s */\n", __FILE__ ); + + for ( i = 0; + i < sizeof ( featreg_table ) / sizeof ( GX_Feature_RegistryRec ); + i++ ) + { + const char* feat_name; + int nSettings; + + + feat_name = featreg_table[i].feat_name; + for ( nSettings = 0; + featreg_table[i].setting_name[nSettings]; + nSettings++) + ; /* Do nothing */ + + printf( " {%1d, %1d, %1d, %2d}, /* %s */\n", + feat_name ? 1 : 0, + ( feat_name && + ( ft_strncmp( feat_name, + APPLE_RESERVED, APPLE_RESERVED_LENGTH ) == 0 ) + ) ? 1 : 0, + featreg_table[i].exclusive ? 1 : 0, + nSettings, + feat_name ? feat_name : "__EMPTY__" ); + } + + printf( " };\n" ); + + return 0; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvjust.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvjust.c new file mode 100644 index 000000000..7816e0b7f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvjust.c @@ -0,0 +1,717 @@ +/***************************************************************************/ +/* */ +/* gxvjust.c */ +/* */ +/* TrueTypeGX/AAT just table validation (body). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + +#include FT_SFNT_NAMES_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvjust + + /* + * referred `just' table format specification: + * http://developer.apple.com/fonts/TTRefMan/RM06/Chap6just.html + * last updated 2000. + * ---------------------------------------------- + * [JUST HEADER]: GXV_JUST_HEADER_SIZE + * version (fixed: 32bit) = 0x00010000 + * format (uint16: 16bit) = 0 is only defined (2000) + * horizOffset (uint16: 16bit) + * vertOffset (uint16: 16bit) + * ---------------------------------------------- + */ + + typedef struct GXV_just_DataRec_ + { + FT_UShort wdc_offset_max; + FT_UShort wdc_offset_min; + FT_UShort pc_offset_max; + FT_UShort pc_offset_min; + + } GXV_just_DataRec, *GXV_just_Data; + + +#define GXV_JUST_DATA( a ) GXV_TABLE_DATA( just, a ) + + + /* GX just table does not define their subset of GID */ + static void + gxv_just_check_max_gid( FT_UShort gid, + const FT_String* msg_tag, + GXV_Validator valid ) + { + if ( gid < valid->face->num_glyphs ) + return; + + GXV_TRACE(( "just table includes too large %s" + " GID=%d > %d (in maxp)\n", + msg_tag, gid, valid->face->num_glyphs )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + + static void + gxv_just_wdp_entry_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong justClass; +#ifdef GXV_LOAD_UNUSED_VARS + FT_Fixed beforeGrowLimit; + FT_Fixed beforeShrinkGrowLimit; + FT_Fixed afterGrowLimit; + FT_Fixed afterShrinkGrowLimit; + FT_UShort growFlags; + FT_UShort shrinkFlags; +#endif + + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 + 4 + 2 + 2 ); + justClass = FT_NEXT_ULONG( p ); +#ifndef GXV_LOAD_UNUSED_VARS + p += 4 + 4 + 4 + 4 + 2 + 2; +#else + beforeGrowLimit = FT_NEXT_ULONG( p ); + beforeShrinkGrowLimit = FT_NEXT_ULONG( p ); + afterGrowLimit = FT_NEXT_ULONG( p ); + afterShrinkGrowLimit = FT_NEXT_ULONG( p ); + growFlags = FT_NEXT_USHORT( p ); + shrinkFlags = FT_NEXT_USHORT( p ); +#endif + + /* According to Apple spec, only 7bits in justClass is used */ + if ( ( justClass & 0xFFFFFF80 ) != 0 ) + { + GXV_TRACE(( "just table includes non-zero value" + " in unused justClass higher bits" + " of WidthDeltaPair" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + valid->subtable_length = p - table; + } + + + static void + gxv_just_wdc_entry_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong count, i; + + + GXV_LIMIT_CHECK( 4 ); + count = FT_NEXT_ULONG( p ); + for ( i = 0; i < count; i++ ) + { + GXV_TRACE(( "validating wdc pair %d/%d\n", i + 1, count )); + gxv_just_wdp_entry_validate( p, limit, valid ); + p += valid->subtable_length; + } + + valid->subtable_length = p - table; + } + + + static void + gxv_just_widthDeltaClusters_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table ; + FT_Bytes wdc_end = table + GXV_JUST_DATA( wdc_offset_max ); + FT_UInt i; + + + GXV_NAME_ENTER( "just justDeltaClusters" ); + + if ( limit <= wdc_end ) + FT_INVALID_OFFSET; + + for ( i = 0; p <= wdc_end; i++ ) + { + gxv_just_wdc_entry_validate( p, limit, valid ); + p += valid->subtable_length; + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_just_actSubrecord_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + FT_Fixed lowerLimit; + FT_Fixed upperLimit; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort order; +#endif + FT_UShort decomposedCount; + + FT_UInt i; + + + GXV_LIMIT_CHECK( 4 + 4 + 2 + 2 ); + lowerLimit = FT_NEXT_ULONG( p ); + upperLimit = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + order = FT_NEXT_USHORT( p ); +#else + p += 2; +#endif + decomposedCount = FT_NEXT_USHORT( p ); + + if ( lowerLimit >= upperLimit ) + { + GXV_TRACE(( "just table includes invalid range spec:" + " lowerLimit(%d) > upperLimit(%d)\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + for ( i = 0; i < decomposedCount; i++ ) + { + FT_UShort glyphs; + + + GXV_LIMIT_CHECK( 2 ); + glyphs = FT_NEXT_USHORT( p ); + gxv_just_check_max_gid( glyphs, "type0:glyphs", valid ); + } + + valid->subtable_length = p - table; + } + + + static void + gxv_just_actSubrecord_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort addGlyph; + + + GXV_LIMIT_CHECK( 2 ); + addGlyph = FT_NEXT_USHORT( p ); + + gxv_just_check_max_gid( addGlyph, "type1:addGlyph", valid ); + + valid->subtable_length = p - table; + } + + + static void + gxv_just_actSubrecord_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_UNUSED_VARS + FT_Fixed substThreshhold; /* Apple misspelled "Threshhold" */ +#endif + FT_UShort addGlyph; + FT_UShort substGlyph; + + + GXV_LIMIT_CHECK( 4 + 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS + substThreshhold = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + addGlyph = FT_NEXT_USHORT( p ); + substGlyph = FT_NEXT_USHORT( p ); + + if ( addGlyph != 0xFFFF ) + gxv_just_check_max_gid( addGlyph, "type2:addGlyph", valid ); + + gxv_just_check_max_gid( substGlyph, "type2:substGlyph", valid ); + + valid->subtable_length = p - table; + } + + + static void + gxv_just_actSubrecord_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong variantsAxis; + FT_Fixed minimumLimit; + FT_Fixed noStretchValue; + FT_Fixed maximumLimit; + + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 ); + variantsAxis = FT_NEXT_ULONG( p ); + minimumLimit = FT_NEXT_ULONG( p ); + noStretchValue = FT_NEXT_ULONG( p ); + maximumLimit = FT_NEXT_ULONG( p ); + + valid->subtable_length = p - table; + + if ( variantsAxis != 0x64756374 ) /* 'duct' */ + GXV_TRACE(( "variantsAxis 0x%08x is non default value", + variantsAxis )); + + if ( minimumLimit > noStretchValue ) + GXV_TRACE(( "type4:minimumLimit 0x%08x > noStretchValue 0x%08x\n", + minimumLimit, noStretchValue )); + else if ( noStretchValue > maximumLimit ) + GXV_TRACE(( "type4:noStretchValue 0x%08x > maximumLimit 0x%08x\n", + noStretchValue, maximumLimit )); + else if ( !IS_PARANOID_VALIDATION ) + return; + + FT_INVALID_DATA; + } + + + static void + gxv_just_actSubrecord_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort flags; + FT_UShort glyph; + + + GXV_LIMIT_CHECK( 2 + 2 ); + flags = FT_NEXT_USHORT( p ); + glyph = FT_NEXT_USHORT( p ); + + if ( flags ) + GXV_TRACE(( "type5: nonzero value 0x%04x in unused flags\n", + flags )); + gxv_just_check_max_gid( glyph, "type5:glyph", valid ); + + valid->subtable_length = p - table; + } + + + /* parse single actSubrecord */ + static void + gxv_just_actSubrecord_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort actionClass; + FT_UShort actionType; + FT_ULong actionLength; + + + GXV_NAME_ENTER( "just actSubrecord" ); + + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + actionClass = FT_NEXT_USHORT( p ); + actionType = FT_NEXT_USHORT( p ); + actionLength = FT_NEXT_ULONG( p ); + + /* actionClass is related with justClass using 7bit only */ + if ( ( actionClass & 0xFF80 ) != 0 ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + + if ( actionType == 0 ) + gxv_just_actSubrecord_type0_validate( p, limit, valid ); + else if ( actionType == 1 ) + gxv_just_actSubrecord_type1_validate( p, limit, valid ); + else if ( actionType == 2 ) + gxv_just_actSubrecord_type2_validate( p, limit, valid ); + else if ( actionType == 3 ) + ; /* Stretch glyph action: no actionData */ + else if ( actionType == 4 ) + gxv_just_actSubrecord_type4_validate( p, limit, valid ); + else if ( actionType == 5 ) + gxv_just_actSubrecord_type5_validate( p, limit, valid ); + else + FT_INVALID_DATA; + + valid->subtable_length = actionLength; + + GXV_EXIT; + } + + + static void + gxv_just_pcActionRecord_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong actionCount; + FT_ULong i; + + + GXV_LIMIT_CHECK( 4 ); + actionCount = FT_NEXT_ULONG( p ); + GXV_TRACE(( "actionCount = %d\n", actionCount )); + + for ( i = 0; i < actionCount; i++ ) + { + gxv_just_actSubrecord_validate( p, limit, valid ); + p += valid->subtable_length; + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_just_pcTable_LookupValue_entry_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + if ( value_p->u > GXV_JUST_DATA( pc_offset_max ) ) + GXV_JUST_DATA( pc_offset_max ) = value_p->u; + if ( value_p->u < GXV_JUST_DATA( pc_offset_max ) ) + GXV_JUST_DATA( pc_offset_min ) = value_p->u; + } + + + static void + gxv_just_pcLookupTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( "just pcLookupTable" ); + GXV_JUST_DATA( pc_offset_max ) = 0x0000; + GXV_JUST_DATA( pc_offset_min ) = 0xFFFFU; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_just_pcTable_LookupValue_entry_validate; + + gxv_LookupTable_validate( p, limit, valid ); + + /* subtable_length is set by gxv_LookupTable_validate() */ + + GXV_EXIT; + } + + + static void + gxv_just_postcompTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( "just postcompTable" ); + + gxv_just_pcLookupTable_validate( p, limit, valid ); + p += valid->subtable_length; + + gxv_just_pcActionRecord_validate( p, limit, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_just_classTable_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + /* TODO: validate markClass & currentClass */ + FT_UShort setMark; + FT_UShort dontAdvance; + FT_UShort markClass; + FT_UShort currentClass; +#endif + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + FT_UNUSED( valid ); + +#ifndef GXV_LOAD_UNUSED_VARS + FT_UNUSED( flags ); +#else + setMark = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + markClass = (FT_UShort)( ( flags >> 7 ) & 0x7F ); + currentClass = (FT_UShort)( flags & 0x7F ); +#endif + } + + + static void + gxv_just_justClassTable_validate ( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort length; + FT_UShort coverage; + FT_ULong subFeatureFlags; + + + GXV_NAME_ENTER( "just justClassTable" ); + + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + length = FT_NEXT_USHORT( p ); + coverage = FT_NEXT_USHORT( p ); + subFeatureFlags = FT_NEXT_ULONG( p ); + + GXV_TRACE(( " justClassTable: coverage = 0x%04x (%s) ", coverage )); + if ( ( coverage & 0x4000 ) == 0 ) + GXV_TRACE(( "ascending\n" )); + else + GXV_TRACE(( "descending\n" )); + + if ( subFeatureFlags ) + GXV_TRACE(( " justClassTable: nonzero value (0x%08x)" + " in unused subFeatureFlags\n", subFeatureFlags )); + + valid->statetable.optdata = NULL; + valid->statetable.optdata_load_func = NULL; + valid->statetable.subtable_setup_func = NULL; + valid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_just_classTable_entry_validate; + + gxv_StateTable_validate( p, table + length, valid ); + + /* subtable_length is set by gxv_LookupTable_validate() */ + + GXV_EXIT; + } + + + static void + gxv_just_wdcTable_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + if ( value_p->u > GXV_JUST_DATA( wdc_offset_max ) ) + GXV_JUST_DATA( wdc_offset_max ) = value_p->u; + if ( value_p->u < GXV_JUST_DATA( wdc_offset_min ) ) + GXV_JUST_DATA( wdc_offset_min ) = value_p->u; + } + + + static void + gxv_just_justData_lookuptable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_JUST_DATA( wdc_offset_max ) = 0x0000; + GXV_JUST_DATA( wdc_offset_min ) = 0xFFFFU; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_just_wdcTable_LookupValue_validate; + + gxv_LookupTable_validate( p, limit, valid ); + + /* subtable_length is set by gxv_LookupTable_validate() */ + + GXV_EXIT; + } + + + /* + * gxv_just_justData_validate() parses and validates horizData, vertData. + */ + static void + gxv_just_justData_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + /* + * following 3 offsets are measured from the start of `just' + * (which table points to), not justData + */ + FT_UShort justClassTableOffset; + FT_UShort wdcTableOffset; + FT_UShort pcTableOffset; + FT_Bytes p = table; + + GXV_ODTECT( 4, odtect ); + + + GXV_NAME_ENTER( "just justData" ); + + GXV_ODTECT_INIT( odtect ); + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + justClassTableOffset = FT_NEXT_USHORT( p ); + wdcTableOffset = FT_NEXT_USHORT( p ); + pcTableOffset = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " (justClassTableOffset = 0x%04x)\n", justClassTableOffset )); + GXV_TRACE(( " (wdcTableOffset = 0x%04x)\n", wdcTableOffset )); + GXV_TRACE(( " (pcTableOffset = 0x%04x)\n", pcTableOffset )); + + gxv_just_justData_lookuptable_validate( p, limit, valid ); + gxv_odtect_add_range( p, valid->subtable_length, + "just_LookupTable", odtect ); + + if ( wdcTableOffset ) + { + gxv_just_widthDeltaClusters_validate( + valid->root->base + wdcTableOffset, limit, valid ); + gxv_odtect_add_range( valid->root->base + wdcTableOffset, + valid->subtable_length, "just_wdcTable", odtect ); + } + + if ( pcTableOffset ) + { + gxv_just_postcompTable_validate( valid->root->base + pcTableOffset, + limit, valid ); + gxv_odtect_add_range( valid->root->base + pcTableOffset, + valid->subtable_length, "just_pcTable", odtect ); + } + + if ( justClassTableOffset ) + { + gxv_just_justClassTable_validate( + valid->root->base + justClassTableOffset, limit, valid ); + gxv_odtect_add_range( valid->root->base + justClassTableOffset, + valid->subtable_length, "just_justClassTable", + odtect ); + } + + gxv_odtect_validate( odtect, valid ); + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_just_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + GXV_just_DataRec justrec; + GXV_just_Data just = &justrec; + + FT_ULong version; + FT_UShort format; + FT_UShort horizOffset; + FT_UShort vertOffset; + + GXV_ODTECT( 3, odtect ); + + + GXV_ODTECT_INIT( odtect ); + + valid->root = ftvalid; + valid->table_data = just; + valid->face = face; + + FT_TRACE3(( "validating `just' table\n" )); + GXV_INIT; + + limit = valid->root->limit; + + GXV_LIMIT_CHECK( 4 + 2 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + horizOffset = FT_NEXT_USHORT( p ); + vertOffset = FT_NEXT_USHORT( p ); + gxv_odtect_add_range( table, p - table, "just header", odtect ); + + + /* Version 1.0 (always:2000) */ + GXV_TRACE(( " (version = 0x%08x)\n", version )); + if ( version != 0x00010000UL ) + FT_INVALID_FORMAT; + + /* format 0 (always:2000) */ + GXV_TRACE(( " (format = 0x%04x)\n", format )); + if ( format != 0x0000 ) + FT_INVALID_FORMAT; + + GXV_TRACE(( " (horizOffset = %d)\n", horizOffset )); + GXV_TRACE(( " (vertOffset = %d)\n", vertOffset )); + + + /* validate justData */ + if ( 0 < horizOffset ) + { + gxv_just_justData_validate( table + horizOffset, limit, valid ); + gxv_odtect_add_range( table + horizOffset, valid->subtable_length, + "horizJustData", odtect ); + } + + if ( 0 < vertOffset ) + { + gxv_just_justData_validate( table + vertOffset, limit, valid ); + gxv_odtect_add_range( table + vertOffset, valid->subtable_length, + "vertJustData", odtect ); + } + + gxv_odtect_validate( odtect, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvkern.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvkern.c new file mode 100644 index 000000000..0ec978f7b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvkern.c @@ -0,0 +1,922 @@ +/***************************************************************************/ +/* */ +/* gxvkern.c */ +/* */ +/* TrueTypeGX/AAT kern table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + +#include FT_SFNT_NAMES_H +#include FT_SERVICE_GX_VALIDATE_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvkern + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef enum GXV_kern_Version_ + { + KERN_VERSION_CLASSIC = 0x0000, + KERN_VERSION_NEW = 0x0001 + + } GXV_kern_Version; + + + typedef enum GXV_kern_Dialect_ + { + KERN_DIALECT_UNKNOWN = 0, + KERN_DIALECT_MS = FT_VALIDATE_MS, + KERN_DIALECT_APPLE = FT_VALIDATE_APPLE, + KERN_DIALECT_ANY = FT_VALIDATE_CKERN + + } GXV_kern_Dialect; + + + typedef struct GXV_kern_DataRec_ + { + GXV_kern_Version version; + void *subtable_data; + GXV_kern_Dialect dialect_request; + + } GXV_kern_DataRec, *GXV_kern_Data; + + +#define GXV_KERN_DATA( field ) GXV_TABLE_DATA( kern, field ) + +#define KERN_IS_CLASSIC( valid ) \ + ( KERN_VERSION_CLASSIC == GXV_KERN_DATA( version ) ) +#define KERN_IS_NEW( valid ) \ + ( KERN_VERSION_NEW == GXV_KERN_DATA( version ) ) + +#define KERN_DIALECT( valid ) \ + GXV_KERN_DATA( dialect_request ) +#define KERN_ALLOWS_MS( valid ) \ + ( KERN_DIALECT( valid ) & KERN_DIALECT_MS ) +#define KERN_ALLOWS_APPLE( valid ) \ + ( KERN_DIALECT( valid ) & KERN_DIALECT_APPLE ) + +#define GXV_KERN_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 4 ) +#define GXV_KERN_SUBTABLE_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 6 ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SUBTABLE VALIDATORS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* ============================= format 0 ============================== */ + + static void + gxv_kern_subtable_fmt0_pairs_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nPairs, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + FT_UShort last_gid_left = 0; + FT_UShort last_gid_right = 0; + + FT_UNUSED( limit ); + + + GXV_NAME_ENTER( "kern format 0 pairs" ); + + for ( i = 0; i < nPairs; i++ ) + { + FT_UShort gid_left; + FT_UShort gid_right; +#ifdef GXV_LOAD_UNUSED_VARS + FT_Short kernValue; +#endif + + + /* left */ + gid_left = FT_NEXT_USHORT( p ); + gxv_glyphid_validate( gid_left, valid ); + + /* right */ + gid_right = FT_NEXT_USHORT( p ); + gxv_glyphid_validate( gid_right, valid ); + + /* Pairs of left and right GIDs must be unique and sorted. */ + GXV_TRACE(( "left gid = %u, right gid = %u\n", gid_left, gid_right )); + if ( gid_left == last_gid_left ) + { + if ( last_gid_right < gid_right ) + last_gid_right = gid_right; + else + FT_INVALID_DATA; + } + else if ( last_gid_left < gid_left ) + { + last_gid_left = gid_left; + last_gid_right = gid_right; + } + else + FT_INVALID_DATA; + + /* skip the kern value */ +#ifdef GXV_LOAD_UNUSED_VARS + kernValue = FT_NEXT_SHORT( p ); +#else + p += 2; +#endif + } + + GXV_EXIT; + } + + static void + gxv_kern_subtable_fmt0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE; + + FT_UShort nPairs; + FT_UShort unitSize; + + + GXV_NAME_ENTER( "kern subtable format 0" ); + + unitSize = 2 + 2 + 2; + nPairs = 0; + + /* nPairs, searchRange, entrySelector, rangeShift */ + GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 ); + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nPairs, valid ); + p += 2 + 2 + 2 + 2; + + gxv_kern_subtable_fmt0_pairs_validate( p, limit, nPairs, valid ); + + GXV_EXIT; + } + + + /* ============================= format 1 ============================== */ + + + typedef struct GXV_kern_fmt1_StateOptRec_ + { + FT_UShort valueTable; + FT_UShort valueTable_length; + + } GXV_kern_fmt1_StateOptRec, *GXV_kern_fmt1_StateOptRecData; + + + static void + gxv_kern_subtable_fmt1_valueTable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_kern_fmt1_StateOptRecData optdata = + (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata; + + + GXV_LIMIT_CHECK( 2 ); + optdata->valueTable = FT_NEXT_USHORT( p ); + } + + + /* + * passed tables_size covers whole StateTable, including kern fmt1 header + */ + static void + gxv_kern_subtable_fmt1_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[4]; + FT_UShort *l[4]; + FT_UShort buff[5]; + + GXV_kern_fmt1_StateOptRecData optdata = + (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->valueTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->valueTable_length); + + gxv_set_length_by_ushort_offset( o, l, buff, 4, table_size, valid ); + } + + + /* + * passed table & limit are of whole StateTable, not including subtables + */ + static void + gxv_kern_subtable_fmt1_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort push; + FT_UShort dontAdvance; +#endif + FT_UShort valueOffset; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort kernAction; + FT_UShort kernValue; +#endif + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + + +#ifdef GXV_LOAD_UNUSED_VARS + push = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + valueOffset = (FT_UShort)( flags & 0x3FFF ); + + { + GXV_kern_fmt1_StateOptRecData vt_rec = + (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata; + FT_Bytes p; + + + if ( valueOffset < vt_rec->valueTable ) + FT_INVALID_OFFSET; + + p = table + valueOffset; + limit = table + vt_rec->valueTable + vt_rec->valueTable_length; + + GXV_LIMIT_CHECK( 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS + kernAction = FT_NEXT_USHORT( p ); + kernValue = FT_NEXT_USHORT( p ); +#else + p += 4; +#endif + } + } + + + static void + gxv_kern_subtable_fmt1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_kern_fmt1_StateOptRec vt_rec; + + + GXV_NAME_ENTER( "kern subtable format 1" ); + + valid->statetable.optdata = + &vt_rec; + valid->statetable.optdata_load_func = + gxv_kern_subtable_fmt1_valueTable_load; + valid->statetable.subtable_setup_func = + gxv_kern_subtable_fmt1_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_kern_subtable_fmt1_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + + /* ================ Data for Class-Based Subtables 2, 3 ================ */ + + typedef enum GXV_kern_ClassSpec_ + { + GXV_KERN_CLS_L = 0, + GXV_KERN_CLS_R + + } GXV_kern_ClassSpec; + + + /* ============================= format 2 ============================== */ + + /* ---------------------- format 2 specific data ----------------------- */ + + typedef struct GXV_kern_subtable_fmt2_DataRec_ + { + FT_UShort rowWidth; + FT_UShort array; + FT_UShort offset_min[2]; + FT_UShort offset_max[2]; + const FT_String* class_tag[2]; + GXV_odtect_Range odtect; + + } GXV_kern_subtable_fmt2_DataRec, *GXV_kern_subtable_fmt2_Data; + + +#define GXV_KERN_FMT2_DATA( field ) \ + ( ( (GXV_kern_subtable_fmt2_DataRec *) \ + ( GXV_KERN_DATA( subtable_data ) ) )->field ) + + + /* -------------------------- utility functions ----------------------- */ + + static void + gxv_kern_subtable_fmt2_clstbl_validate( FT_Bytes table, + FT_Bytes limit, + GXV_kern_ClassSpec spec, + GXV_Validator valid ) + { + const FT_String* tag = GXV_KERN_FMT2_DATA( class_tag[spec] ); + GXV_odtect_Range odtect = GXV_KERN_FMT2_DATA( odtect ); + + FT_Bytes p = table; + FT_UShort firstGlyph; + FT_UShort nGlyphs; + + + GXV_NAME_ENTER( "kern format 2 classTable" ); + + GXV_LIMIT_CHECK( 2 + 2 ); + firstGlyph = FT_NEXT_USHORT( p ); + nGlyphs = FT_NEXT_USHORT( p ); + GXV_TRACE(( " %s firstGlyph=%d, nGlyphs=%d\n", + tag, firstGlyph, nGlyphs )); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs - 1 ), valid ); + + gxv_array_getlimits_ushort( p, p + ( 2 * nGlyphs ), + &( GXV_KERN_FMT2_DATA( offset_min[spec] ) ), + &( GXV_KERN_FMT2_DATA( offset_max[spec] ) ), + valid ); + + gxv_odtect_add_range( table, 2 * nGlyphs, tag, odtect ); + + GXV_EXIT; + } + + + static void + gxv_kern_subtable_fmt2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + GXV_ODTECT( 3, odtect ); + GXV_kern_subtable_fmt2_DataRec fmt2_rec = + { 0, 0, { 0, 0 }, { 0, 0 }, { "leftClass", "rightClass" }, NULL }; + + FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE; + FT_UShort leftOffsetTable; + FT_UShort rightOffsetTable; + + + GXV_NAME_ENTER( "kern subtable format 2" ); + + GXV_ODTECT_INIT( odtect ); + fmt2_rec.odtect = odtect; + GXV_KERN_DATA( subtable_data ) = &fmt2_rec; + + GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 ); + GXV_KERN_FMT2_DATA( rowWidth ) = FT_NEXT_USHORT( p ); + leftOffsetTable = FT_NEXT_USHORT( p ); + rightOffsetTable = FT_NEXT_USHORT( p ); + GXV_KERN_FMT2_DATA( array ) = FT_NEXT_USHORT( p ); + + GXV_TRACE(( "rowWidth = %d\n", GXV_KERN_FMT2_DATA( rowWidth ) )); + + + GXV_LIMIT_CHECK( leftOffsetTable ); + GXV_LIMIT_CHECK( rightOffsetTable ); + GXV_LIMIT_CHECK( GXV_KERN_FMT2_DATA( array ) ); + + gxv_kern_subtable_fmt2_clstbl_validate( table + leftOffsetTable, limit, + GXV_KERN_CLS_L, valid ); + + gxv_kern_subtable_fmt2_clstbl_validate( table + rightOffsetTable, limit, + GXV_KERN_CLS_R, valid ); + + if ( GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_L] ) + + GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_R] ) + < GXV_KERN_FMT2_DATA( array ) ) + FT_INVALID_OFFSET; + + gxv_odtect_add_range( table + GXV_KERN_FMT2_DATA( array ), + GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_L] ) + + GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_R] ) + - GXV_KERN_FMT2_DATA( array ), + "array", odtect ); + + gxv_odtect_validate( odtect, valid ); + + GXV_EXIT; + } + + + /* ============================= format 3 ============================== */ + + static void + gxv_kern_subtable_fmt3_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE; + FT_UShort glyphCount; + FT_Byte kernValueCount; + FT_Byte leftClassCount; + FT_Byte rightClassCount; + FT_Byte flags; + + + GXV_NAME_ENTER( "kern subtable format 3" ); + + GXV_LIMIT_CHECK( 2 + 1 + 1 + 1 + 1 ); + glyphCount = FT_NEXT_USHORT( p ); + kernValueCount = FT_NEXT_BYTE( p ); + leftClassCount = FT_NEXT_BYTE( p ); + rightClassCount = FT_NEXT_BYTE( p ); + flags = FT_NEXT_BYTE( p ); + + if ( valid->face->num_glyphs != glyphCount ) + { + GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n", + valid->face->num_glyphs, glyphCount )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + if ( flags != 0 ) + GXV_TRACE(( "kern subtable fmt3 has nonzero value" + " (%d) in unused flag\n", flags )); + /* + * just skip kernValue[kernValueCount] + */ + GXV_LIMIT_CHECK( 2 * kernValueCount ); + p += 2 * kernValueCount; + + /* + * check leftClass[gid] < leftClassCount + */ + { + FT_Byte min, max; + + + GXV_LIMIT_CHECK( glyphCount ); + gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid ); + p += valid->subtable_length; + + if ( leftClassCount < max ) + FT_INVALID_DATA; + } + + /* + * check rightClass[gid] < rightClassCount + */ + { + FT_Byte min, max; + + + GXV_LIMIT_CHECK( glyphCount ); + gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid ); + p += valid->subtable_length; + + if ( rightClassCount < max ) + FT_INVALID_DATA; + } + + /* + * check kernIndex[i, j] < kernValueCount + */ + { + FT_UShort i, j; + + + for ( i = 0; i < leftClassCount; i++ ) + { + for ( j = 0; j < rightClassCount; j++ ) + { + GXV_LIMIT_CHECK( 1 ); + if ( kernValueCount < FT_NEXT_BYTE( p ) ) + FT_INVALID_OFFSET; + } + } + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static FT_Bool + gxv_kern_coverage_new_apple_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + /* new Apple-dialect */ +#ifdef GXV_LOAD_TRACE_VARS + FT_Bool kernVertical; + FT_Bool kernCrossStream; + FT_Bool kernVariation; +#endif + + FT_UNUSED( valid ); + + + /* reserved bits = 0 */ + if ( coverage & 0x1FFC ) + return FALSE; + +#ifdef GXV_LOAD_TRACE_VARS + kernVertical = FT_BOOL( ( coverage >> 15 ) & 1 ); + kernCrossStream = FT_BOOL( ( coverage >> 14 ) & 1 ); + kernVariation = FT_BOOL( ( coverage >> 13 ) & 1 ); +#endif + + *format = (FT_UShort)( coverage & 0x0003 ); + + GXV_TRACE(( "new Apple-dialect: " + "horizontal=%d, cross-stream=%d, variation=%d, format=%d\n", + !kernVertical, kernCrossStream, kernVariation, *format )); + + GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); + + return TRUE; + } + + + static FT_Bool + gxv_kern_coverage_classic_apple_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + /* classic Apple-dialect */ +#ifdef GXV_LOAD_TRACE_VARS + FT_Bool horizontal; + FT_Bool cross_stream; +#endif + + + /* check expected flags, but don't check if MS-dialect is impossible */ + if ( !( coverage & 0xFD00 ) && KERN_ALLOWS_MS( valid ) ) + return FALSE; + + /* reserved bits = 0 */ + if ( coverage & 0x02FC ) + return FALSE; + +#ifdef GXV_LOAD_TRACE_VARS + horizontal = FT_BOOL( ( coverage >> 15 ) & 1 ); + cross_stream = FT_BOOL( ( coverage >> 13 ) & 1 ); +#endif + + *format = (FT_UShort)( coverage & 0x0003 ); + + GXV_TRACE(( "classic Apple-dialect: " + "horizontal=%d, cross-stream=%d, format=%d\n", + horizontal, cross_stream, *format )); + + /* format 1 requires GX State Machine, too new for classic */ + if ( *format == 1 ) + return FALSE; + + GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); + + return TRUE; + } + + + static FT_Bool + gxv_kern_coverage_classic_microsoft_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + /* classic Microsoft-dialect */ +#ifdef GXV_LOAD_TRACE_VARS + FT_Bool horizontal; + FT_Bool minimum; + FT_Bool cross_stream; + FT_Bool override; +#endif + + FT_UNUSED( valid ); + + + /* reserved bits = 0 */ + if ( coverage & 0xFDF0 ) + return FALSE; + +#ifdef GXV_LOAD_TRACE_VARS + horizontal = FT_BOOL( coverage & 1 ); + minimum = FT_BOOL( ( coverage >> 1 ) & 1 ); + cross_stream = FT_BOOL( ( coverage >> 2 ) & 1 ); + override = FT_BOOL( ( coverage >> 3 ) & 1 ); +#endif + + *format = (FT_UShort)( ( coverage >> 8 ) & 0x0003 ); + + GXV_TRACE(( "classic Microsoft-dialect: " + "horizontal=%d, minimum=%d, cross-stream=%d, " + "override=%d, format=%d\n", + horizontal, minimum, cross_stream, override, *format )); + + if ( *format == 2 ) + GXV_TRACE(( + "kerning values in Microsoft format 2 subtable are ignored\n" )); + + return TRUE; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MAIN *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static GXV_kern_Dialect + gxv_kern_coverage_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + GXV_kern_Dialect result = KERN_DIALECT_UNKNOWN; + + + GXV_NAME_ENTER( "validating coverage" ); + + GXV_TRACE(( "interprete coverage 0x%04x by Apple style\n", coverage )); + + if ( KERN_IS_NEW( valid ) ) + { + if ( gxv_kern_coverage_new_apple_validate( coverage, + format, + valid ) ) + { + result = KERN_DIALECT_APPLE; + goto Exit; + } + } + + if ( KERN_IS_CLASSIC( valid ) && KERN_ALLOWS_APPLE( valid ) ) + { + if ( gxv_kern_coverage_classic_apple_validate( coverage, + format, + valid ) ) + { + result = KERN_DIALECT_APPLE; + goto Exit; + } + } + + if ( KERN_IS_CLASSIC( valid ) && KERN_ALLOWS_MS( valid ) ) + { + if ( gxv_kern_coverage_classic_microsoft_validate( coverage, + format, + valid ) ) + { + result = KERN_DIALECT_MS; + goto Exit; + } + } + + GXV_TRACE(( "cannot interprete coverage, broken kern subtable\n" )); + + Exit: + GXV_EXIT; + return result; + } + + + static void + gxv_kern_subtable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_TRACE_VARS + FT_UShort version = 0; /* MS only: subtable version, unused */ +#endif + FT_ULong length; /* MS: 16bit, Apple: 32bit*/ + FT_UShort coverage; +#ifdef GXV_LOAD_TRACE_VARS + FT_UShort tupleIndex = 0; /* Apple only */ +#endif + FT_UShort u16[2]; + FT_UShort format = 255; /* subtable format */ + + + GXV_NAME_ENTER( "kern subtable" ); + + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + u16[0] = FT_NEXT_USHORT( p ); /* Apple: length_hi MS: version */ + u16[1] = FT_NEXT_USHORT( p ); /* Apple: length_lo MS: length */ + coverage = FT_NEXT_USHORT( p ); + + switch ( gxv_kern_coverage_validate( coverage, &format, valid ) ) + { + case KERN_DIALECT_MS: +#ifdef GXV_LOAD_TRACE_VARS + version = u16[0]; +#endif + length = u16[1]; +#ifdef GXV_LOAD_TRACE_VARS + tupleIndex = 0; +#endif + GXV_TRACE(( "Subtable version = %d\n", version )); + GXV_TRACE(( "Subtable length = %d\n", length )); + break; + + case KERN_DIALECT_APPLE: +#ifdef GXV_LOAD_TRACE_VARS + version = 0; +#endif + length = ( u16[0] << 16 ) + u16[1]; +#ifdef GXV_LOAD_TRACE_VARS + tupleIndex = 0; +#endif + GXV_TRACE(( "Subtable length = %d\n", length )); + + if ( KERN_IS_NEW( valid ) ) + { + GXV_LIMIT_CHECK( 2 ); +#ifdef GXV_LOAD_TRACE_VARS + tupleIndex = FT_NEXT_USHORT( p ); +#else + p += 2; +#endif + GXV_TRACE(( "Subtable tupleIndex = %d\n", tupleIndex )); + } + break; + + default: + length = u16[1]; + GXV_TRACE(( "cannot detect subtable dialect, " + "just skip %d byte\n", length )); + goto Exit; + } + + /* formats 1, 2, 3 require the position of the start of this subtable */ + if ( format == 0 ) + gxv_kern_subtable_fmt0_validate( table, table + length, valid ); + else if ( format == 1 ) + gxv_kern_subtable_fmt1_validate( table, table + length, valid ); + else if ( format == 2 ) + gxv_kern_subtable_fmt2_validate( table, table + length, valid ); + else if ( format == 3 ) + gxv_kern_subtable_fmt3_validate( table, table + length, valid ); + else + FT_INVALID_DATA; + + Exit: + valid->subtable_length = length; + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** kern TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_kern_validate_generic( FT_Bytes table, + FT_Face face, + FT_Bool classic_only, + GXV_kern_Dialect dialect_request, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_kern_DataRec kernrec; + GXV_kern_Data kern = &kernrec; + + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_ULong nTables = 0; + FT_UInt i; + + + valid->root = ftvalid; + valid->table_data = kern; + valid->face = face; + + FT_TRACE3(( "validating `kern' table\n" )); + GXV_INIT; + KERN_DIALECT( valid ) = dialect_request; + + GXV_LIMIT_CHECK( 2 ); + GXV_KERN_DATA( version ) = (GXV_kern_Version)FT_NEXT_USHORT( p ); + GXV_TRACE(( "version 0x%04x (higher 16bit)\n", + GXV_KERN_DATA( version ) )); + + if ( 0x0001 < GXV_KERN_DATA( version ) ) + FT_INVALID_FORMAT; + else if ( KERN_IS_CLASSIC( valid ) ) + { + GXV_LIMIT_CHECK( 2 ); + nTables = FT_NEXT_USHORT( p ); + } + else if ( KERN_IS_NEW( valid ) ) + { + if ( classic_only ) + FT_INVALID_FORMAT; + + if ( 0x0000 != FT_NEXT_USHORT( p ) ) + FT_INVALID_FORMAT; + + GXV_LIMIT_CHECK( 4 ); + nTables = FT_NEXT_ULONG( p ); + } + + for ( i = 0; i < nTables; i++ ) + { + GXV_TRACE(( "validating subtable %d/%d\n", i, nTables )); + /* p should be 32bit-aligned? */ + gxv_kern_subtable_validate( p, 0, valid ); + p += valid->subtable_length; + } + + FT_TRACE4(( "\n" )); + } + + + FT_LOCAL_DEF( void ) + gxv_kern_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + gxv_kern_validate_generic( table, face, 0, KERN_DIALECT_ANY, ftvalid ); + } + + + FT_LOCAL_DEF( void ) + gxv_kern_validate_classic( FT_Bytes table, + FT_Face face, + FT_Int dialect_flags, + FT_Validator ftvalid ) + { + GXV_kern_Dialect dialect_request; + + + dialect_request = (GXV_kern_Dialect)dialect_flags; + gxv_kern_validate_generic( table, face, 1, dialect_request, ftvalid ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvlcar.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvlcar.c new file mode 100644 index 000000000..f14fa5b13 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvlcar.c @@ -0,0 +1,223 @@ +/***************************************************************************/ +/* */ +/* gxvlcar.c */ +/* */ +/* TrueTypeGX/AAT lcar table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvlcar + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_lcar_DataRec_ + { + FT_UShort format; + + } GXV_lcar_DataRec, *GXV_lcar_Data; + + +#define GXV_LCAR_DATA( FIELD ) GXV_TABLE_DATA( lcar, FIELD ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_lcar_partial_validate( FT_UShort partial, + FT_UShort glyph, + GXV_Validator valid ) + { + GXV_NAME_ENTER( "partial" ); + + if ( GXV_LCAR_DATA( format ) != 1 ) + goto Exit; + + gxv_ctlPoint_validate( glyph, partial, valid ); + + Exit: + GXV_EXIT; + } + + + static void + gxv_lcar_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_Bytes p = valid->root->base + value_p->u; + FT_Bytes limit = valid->root->limit; + FT_UShort count; + FT_Short partial; + FT_UShort i; + + + GXV_NAME_ENTER( "element in lookupTable" ); + + GXV_LIMIT_CHECK( 2 ); + count = FT_NEXT_USHORT( p ); + + GXV_LIMIT_CHECK( 2 * count ); + for ( i = 0; i < count; i++ ) + { + partial = FT_NEXT_SHORT( p ); + gxv_lcar_partial_validate( partial, glyph, valid ); + } + + GXV_EXIT; + } + + + /* + +------ lcar --------------------+ + | | + | +===============+ | + | | looup header | | + | +===============+ | + | | BinSrchHeader | | + | +===============+ | + | | lastGlyph[0] | | + | +---------------+ | + | | firstGlyph[0] | | head of lcar sfnt table + | +---------------+ | + + | | offset[0] | -> | offset [byte] + | +===============+ | + + | | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + | +---------------+ | + | | firstGlyph[1] | | + | +---------------+ | + | | offset[1] | | + | +===============+ | + | | + | .... | + | | + | 16bit value array | + | +===============+ | + +------| value | <-------+ + | .... + | + | + | + | + | + +----> lcar values...handled by lcar callback function + */ + + static GXV_LookupValueDesc + gxv_lcar_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + FT_UNUSED( lookuptbl_limit ); + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + p = valid->root->base + offset; + limit = valid->root->limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** lcar TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_lcar_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_lcar_DataRec lcarrec; + GXV_lcar_Data lcar = &lcarrec; + + FT_Fixed version; + + + valid->root = ftvalid; + valid->table_data = lcar; + valid->face = face; + + FT_TRACE3(( "validating `lcar' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 2 ); + version = FT_NEXT_ULONG( p ); + GXV_LCAR_DATA( format ) = FT_NEXT_USHORT( p ); + + if ( version != 0x00010000UL) + FT_INVALID_FORMAT; + + if ( GXV_LCAR_DATA( format ) > 1 ) + FT_INVALID_FORMAT; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_lcar_LookupValue_validate; + valid->lookupfmt4_trans = gxv_lcar_LookupFmt4_transit; + gxv_LookupTable_validate( p, limit, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.c new file mode 100644 index 000000000..e715c4f64 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.c @@ -0,0 +1,285 @@ +/***************************************************************************/ +/* */ +/* gxvmod.c */ +/* */ +/* FreeType's TrueTypeGX/AAT validation module implementation (body). */ +/* */ +/* Copyright 2004, 2005, 2006 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_TAGS_H +#include FT_GX_VALIDATE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_GX_VALIDATE_H + +#include "gxvmod.h" +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmodule + + + static FT_Error + gxv_load_table( FT_Face face, + FT_Tag tag, + FT_Byte* volatile* table, + FT_ULong* table_len ) + { + FT_Error error; + FT_Memory memory = FT_FACE_MEMORY( face ); + + + error = FT_Load_Sfnt_Table( face, tag, 0, NULL, table_len ); + if ( error == GXV_Err_Table_Missing ) + return GXV_Err_Ok; + if ( error ) + goto Exit; + + if ( FT_ALLOC( *table, *table_len ) ) + goto Exit; + + error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); + + Exit: + return error; + } + + +#define GXV_TABLE_DECL( _sfnt ) \ + FT_Byte* volatile _sfnt = NULL; \ + FT_ULong len_ ## _sfnt = 0 + +#define GXV_TABLE_LOAD( _sfnt ) \ + if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \ + ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \ + { \ + error = gxv_load_table( face, TTAG_ ## _sfnt, \ + &_sfnt, &len_ ## _sfnt ); \ + if ( error ) \ + goto Exit; \ + } + +#define GXV_TABLE_VALIDATE( _sfnt ) \ + if ( _sfnt ) \ + { \ + ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \ + FT_VALIDATE_DEFAULT ); \ + if ( ft_setjmp( valid.jump_buffer ) == 0 ) \ + gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \ + error = valid.error; \ + if ( error ) \ + goto Exit; \ + } + +#define GXV_TABLE_SET( _sfnt ) \ + if ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) \ + tables[FT_VALIDATE_ ## _sfnt ## _INDEX] = (FT_Bytes)_sfnt + + + static FT_Error + gxv_validate( FT_Face face, + FT_UInt gx_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_count ) + { + FT_Memory volatile memory = FT_FACE_MEMORY( face ); + + FT_Error error = GXV_Err_Ok; + FT_ValidatorRec volatile valid; + + FT_UInt i; + + + GXV_TABLE_DECL( feat ); + GXV_TABLE_DECL( bsln ); + GXV_TABLE_DECL( trak ); + GXV_TABLE_DECL( just ); + GXV_TABLE_DECL( mort ); + GXV_TABLE_DECL( morx ); + GXV_TABLE_DECL( kern ); + GXV_TABLE_DECL( opbd ); + GXV_TABLE_DECL( prop ); + GXV_TABLE_DECL( lcar ); + + for ( i = 0; i < table_count; i++ ) + tables[i] = 0; + + /* load tables */ + GXV_TABLE_LOAD( feat ); + GXV_TABLE_LOAD( bsln ); + GXV_TABLE_LOAD( trak ); + GXV_TABLE_LOAD( just ); + GXV_TABLE_LOAD( mort ); + GXV_TABLE_LOAD( morx ); + GXV_TABLE_LOAD( kern ); + GXV_TABLE_LOAD( opbd ); + GXV_TABLE_LOAD( prop ); + GXV_TABLE_LOAD( lcar ); + + /* validate tables */ + GXV_TABLE_VALIDATE( feat ); + GXV_TABLE_VALIDATE( bsln ); + GXV_TABLE_VALIDATE( trak ); + GXV_TABLE_VALIDATE( just ); + GXV_TABLE_VALIDATE( mort ); + GXV_TABLE_VALIDATE( morx ); + GXV_TABLE_VALIDATE( kern ); + GXV_TABLE_VALIDATE( opbd ); + GXV_TABLE_VALIDATE( prop ); + GXV_TABLE_VALIDATE( lcar ); + + /* Set results */ + GXV_TABLE_SET( feat ); + GXV_TABLE_SET( mort ); + GXV_TABLE_SET( morx ); + GXV_TABLE_SET( bsln ); + GXV_TABLE_SET( just ); + GXV_TABLE_SET( kern ); + GXV_TABLE_SET( opbd ); + GXV_TABLE_SET( trak ); + GXV_TABLE_SET( prop ); + GXV_TABLE_SET( lcar ); + + Exit: + if ( error ) + { + FT_FREE( feat ); + FT_FREE( bsln ); + FT_FREE( trak ); + FT_FREE( just ); + FT_FREE( mort ); + FT_FREE( morx ); + FT_FREE( kern ); + FT_FREE( opbd ); + FT_FREE( prop ); + FT_FREE( lcar ); + } + + return error; + } + + + static FT_Error + classic_kern_validate( FT_Face face, + FT_UInt ckern_flags, + FT_Bytes* ckern_table ) + { + FT_Memory volatile memory = FT_FACE_MEMORY( face ); + + FT_Byte* volatile ckern = NULL; + FT_ULong len_ckern = 0; + + /* without volatile on `error' GCC 4.1.1. emits: */ + /* warning: variable 'error' might be clobbered by 'longjmp' or 'vfork' */ + /* this warning seems spurious but --- */ + FT_Error volatile error = GXV_Err_Ok; + FT_ValidatorRec volatile valid; + + + *ckern_table = NULL; + + error = gxv_load_table( face, TTAG_kern, &ckern, &len_ckern ); + if ( error ) + goto Exit; + + if ( ckern ) + { + ft_validator_init( &valid, ckern, ckern + len_ckern, + FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + gxv_kern_validate_classic( ckern, face, + ckern_flags & FT_VALIDATE_CKERN, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + *ckern_table = ckern; + + Exit: + if ( error ) + FT_FREE( ckern ); + + return error; + } + + + static + const FT_Service_GXvalidateRec gxvalid_interface = + { + gxv_validate + }; + + + static + const FT_Service_CKERNvalidateRec ckernvalid_interface = + { + classic_kern_validate + }; + + + static + const FT_ServiceDescRec gxvalid_services[] = + { + { FT_SERVICE_ID_GX_VALIDATE, &gxvalid_interface }, + { FT_SERVICE_ID_CLASSICKERN_VALIDATE, &ckernvalid_interface }, + { NULL, NULL } + }; + + + static FT_Pointer + gxvalid_get_service( FT_Module module, + const char* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( gxvalid_services, service_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Module_Class gxv_module_class = + { + 0, + sizeof( FT_ModuleRec ), + "gxvalid", + 0x10000L, + 0x20000L, + + 0, /* module-specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) gxvalid_get_service + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.h new file mode 100644 index 000000000..8489618d0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmod.h @@ -0,0 +1,50 @@ +/***************************************************************************/ +/* */ +/* gxvmod.h */ +/* */ +/* FreeType's TrueTypeGX/AAT validation module implementation */ +/* (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVMOD_H__ +#define __GXVMOD_H__ + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Module_Class ) gxv_module_class; + + +FT_END_HEADER + +#endif /* __GXVMOD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.c new file mode 100644 index 000000000..465462a05 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.c @@ -0,0 +1,296 @@ +/***************************************************************************/ +/* */ +/* gxvmort.c */ +/* */ +/* TrueTypeGX/AAT mort table validation (body). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" +#include "gxvfeat.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + static void + gxv_mort_feature_validate( GXV_mort_feature f, + GXV_Validator valid ) + { + if ( f->featureType >= gxv_feat_registry_length ) + { + GXV_TRACE(( "featureType %d is out of registered range, " + "setting %d is unchecked\n", + f->featureType, f->featureSetting )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + else if ( !gxv_feat_registry[f->featureType].existence ) + { + GXV_TRACE(( "featureType %d is within registered area " + "but undefined, setting %d is unchecked\n", + f->featureType, f->featureSetting )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + else + { + FT_Byte nSettings_max; + + + /* nSettings in gxvfeat.c is halved for exclusive on/off settings */ + nSettings_max = gxv_feat_registry[f->featureType].nSettings; + if ( gxv_feat_registry[f->featureType].exclusive ) + nSettings_max = (FT_Byte)( 2 * nSettings_max ); + + GXV_TRACE(( "featureType %d is registered", f->featureType )); + GXV_TRACE(( "setting %d", f->featureSetting )); + + if ( f->featureSetting > nSettings_max ) + { + GXV_TRACE(( "out of defined range %d", nSettings_max )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + GXV_TRACE(( "\n" )); + } + + /* TODO: enableFlags must be unique value in specified chain? */ + } + + + /* + * nFeatureFlags is typed to FT_ULong to accept that in + * mort (typed FT_UShort) and morx (typed FT_ULong). + */ + FT_LOCAL_DEF( void ) + gxv_mort_featurearray_validate( FT_Bytes table, + FT_Bytes limit, + FT_ULong nFeatureFlags, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong i; + + GXV_mort_featureRec f = GXV_MORT_FEATURE_OFF; + + + GXV_NAME_ENTER( "mort feature list" ); + for ( i = 0; i < nFeatureFlags; i++ ) + { + GXV_LIMIT_CHECK( 2 + 2 + 4 + 4 ); + f.featureType = FT_NEXT_USHORT( p ); + f.featureSetting = FT_NEXT_USHORT( p ); + f.enableFlags = FT_NEXT_ULONG( p ); + f.disableFlags = FT_NEXT_ULONG( p ); + + gxv_mort_feature_validate( &f, valid ); + } + + if ( !IS_GXV_MORT_FEATURE_OFF( f ) ) + FT_INVALID_DATA; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_coverage_validate( FT_UShort coverage, + GXV_Validator valid ) + { + FT_UNUSED( valid ); + + if ( coverage & 0x8000U ) + GXV_TRACE(( " this subtable is for vertical text only\n" )); + else + GXV_TRACE(( " this subtable is for horizontal text only\n" )); + + if ( coverage & 0x4000 ) + GXV_TRACE(( " this subtable is applied to glyph array " + "in descending order\n" )); + else + GXV_TRACE(( " this subtable is applied to glyph array " + "in ascending order\n" )); + + if ( coverage & 0x2000 ) + GXV_TRACE(( " this subtable is forcibly applied to " + "vertical/horizontal text\n" )); + + if ( coverage & 0x1FF8 ) + GXV_TRACE(( " coverage has non-zero bits in reserved area\n" )); + } + + + static void + gxv_mort_subtables_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nSubtables, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_Validate_Func fmt_funcs_table[] = + { + gxv_mort_subtable_type0_validate, /* 0 */ + gxv_mort_subtable_type1_validate, /* 1 */ + gxv_mort_subtable_type2_validate, /* 2 */ + NULL, /* 3 */ + gxv_mort_subtable_type4_validate, /* 4 */ + gxv_mort_subtable_type5_validate, /* 5 */ + + }; + + GXV_Validate_Func func; + FT_UShort i; + + + GXV_NAME_ENTER( "subtables in a chain" ); + + for ( i = 0; i < nSubtables; i++ ) + { + FT_UShort length; + FT_UShort coverage; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong subFeatureFlags; +#endif + FT_UInt type; + FT_UInt rest; + + + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + length = FT_NEXT_USHORT( p ); + coverage = FT_NEXT_USHORT( p ); +#ifdef GXV_LOAD_UNUSED_VARS + subFeatureFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + + GXV_TRACE(( "validating chain subtable %d/%d (%d bytes)\n", + i + 1, nSubtables, length )); + type = coverage & 0x0007; + rest = length - ( 2 + 2 + 4 ); + + GXV_LIMIT_CHECK( rest ); + gxv_mort_coverage_validate( coverage, valid ); + + if ( type > 5 ) + FT_INVALID_FORMAT; + + func = fmt_funcs_table[type]; + if ( func == NULL ) + GXV_TRACE(( "morx type %d is reserved\n", type )); + + func( p, p + rest, valid ); + + p += rest; + /* TODO: validate subFeatureFlags */ + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_mort_chain_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong defaultFlags; +#endif + FT_ULong chainLength; + FT_UShort nFeatureFlags; + FT_UShort nSubtables; + + + GXV_NAME_ENTER( "mort chain header" ); + + GXV_LIMIT_CHECK( 4 + 4 + 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS + defaultFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + chainLength = FT_NEXT_ULONG( p ); + nFeatureFlags = FT_NEXT_USHORT( p ); + nSubtables = FT_NEXT_USHORT( p ); + + gxv_mort_featurearray_validate( p, table + chainLength, + nFeatureFlags, valid ); + p += valid->subtable_length; + gxv_mort_subtables_validate( p, table + chainLength, nSubtables, valid ); + valid->subtable_length = chainLength; + + /* TODO: validate defaultFlags */ + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + FT_Bytes p = table; + FT_Bytes limit = 0; + FT_ULong version; + FT_ULong nChains; + FT_ULong i; + + + valid->root = ftvalid; + valid->face = face; + limit = valid->root->limit; + + FT_TRACE3(( "validating `mort' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 4 ); + version = FT_NEXT_ULONG( p ); + nChains = FT_NEXT_ULONG( p ); + + if (version != 0x00010000UL) + FT_INVALID_FORMAT; + + for ( i = 0; i < nChains; i++ ) + { + GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains )); + GXV_32BIT_ALIGNMENT_VALIDATE( p - table ); + gxv_mort_chain_validate( p, limit, valid ); + p += valid->subtable_length; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.h new file mode 100644 index 000000000..1e5a1f5ab --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort.h @@ -0,0 +1,93 @@ +/***************************************************************************/ +/* */ +/* gxvmort.h */ +/* */ +/* TrueTypeGX/AAT common definition for mort table (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVMORT_H__ +#define __GXVMORT_H__ + +#include "gxvalid.h" +#include "gxvcommn.h" + +#include FT_SFNT_NAMES_H + + + typedef struct GXV_mort_featureRec_ + { + FT_UShort featureType; + FT_UShort featureSetting; + FT_ULong enableFlags; + FT_ULong disableFlags; + + } GXV_mort_featureRec, *GXV_mort_feature; + +#define GXV_MORT_FEATURE_OFF {0, 1, 0x00000000UL, 0x00000000UL} + +#define IS_GXV_MORT_FEATURE_OFF( f ) \ + ( (f).featureType == 0 || \ + (f).featureSetting == 1 || \ + (f).enableFlags == 0x00000000UL || \ + (f).disableFlags == 0x00000000UL ) + + + FT_LOCAL( void ) + gxv_mort_featurearray_validate( FT_Bytes table, + FT_Bytes limit, + FT_ULong nFeatureFlags, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_coverage_validate( FT_UShort coverage, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + +#endif /* __GXVMORT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort0.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort0.c new file mode 100644 index 000000000..b136ceda2 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort0.c @@ -0,0 +1,151 @@ +/***************************************************************************/ +/* */ +/* gxvmort0.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type0 (Indic Script Rearrangement) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + static const char* GXV_Mort_IndicScript_Msg[] = + { + "no change", + "Ax => xA", + "xD => Dx", + "AxD => DxA", + "ABx => xAB", + "ABx => xBA", + "xCD => CDx", + "xCD => DCx", + "AxCD => CDxA", + "AxCD => DCxA", + "ABxD => DxAB", + "ABxD => DxBA", + "ABxCD => CDxAB", + "ABxCD => CDxBA", + "ABxCD => DCxAB", + "ABxCD => DCxBA", + + }; + + + static void + gxv_mort_subtable_type0_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_UShort markFirst; + FT_UShort dontAdvance; + FT_UShort markLast; + FT_UShort reserved; + FT_UShort verb = 0; + + FT_UNUSED( state ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + + FT_UNUSED( GXV_Mort_IndicScript_Msg[verb] ); /* for the non-debugging */ + FT_UNUSED( glyphOffset_p ); /* case */ + + + markFirst = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + markLast = (FT_UShort)( ( flags >> 13 ) & 1 ); + + reserved = (FT_UShort)( flags & 0x1FF0 ); + verb = (FT_UShort)( flags & 0x000F ); + + GXV_TRACE(( " IndicScript MorphRule for glyphOffset 0x%04x", + glyphOffset_p->u )); + GXV_TRACE(( " markFirst=%01d", markFirst )); + GXV_TRACE(( " dontAdvance=%01d", dontAdvance )); + GXV_TRACE(( " markLast=%01d", markLast )); + GXV_TRACE(( " %02d", verb )); + GXV_TRACE(( " %s\n", GXV_Mort_IndicScript_Msg[verb] )); + + if ( markFirst > 0 && markLast > 0 ) + { + GXV_TRACE(( " [odd] a glyph is marked as the first and last" + " in Indic rearrangement\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + if ( markFirst > 0 && dontAdvance > 0 ) + { + GXV_TRACE(( " [odd] the first glyph is marked as dontAdvance" + " in Indic rearrangement\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + else + GXV_TRACE(( "\n" )); + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( + "mort chain subtable type0 (Indic-Script Rearrangement)" ); + + GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE ); + + valid->statetable.optdata = NULL; + valid->statetable.optdata_load_func = NULL; + valid->statetable.subtable_setup_func = NULL; + valid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_mort_subtable_type0_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort1.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort1.c new file mode 100644 index 000000000..1c17a5d92 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort1.c @@ -0,0 +1,259 @@ +/***************************************************************************/ +/* */ +/* gxvmort1.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type1 (Contextual Substitution) subtable. */ +/* */ +/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + typedef struct GXV_mort_subtable_type1_StateOptRec_ + { + FT_UShort substitutionTable; + FT_UShort substitutionTable_length; + + } GXV_mort_subtable_type1_StateOptRec, + *GXV_mort_subtable_type1_StateOptRecData; + +#define GXV_MORT_SUBTABLE_TYPE1_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 2 ) + + + static void + gxv_mort_subtable_type1_substitutionTable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type1_StateOptRecData optdata = + (GXV_mort_subtable_type1_StateOptRecData)valid->statetable.optdata; + + + GXV_LIMIT_CHECK( 2 ); + optdata->substitutionTable = FT_NEXT_USHORT( p ); + } + + + static void + gxv_mort_subtable_type1_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[4]; + FT_UShort *l[4]; + FT_UShort buff[5]; + + GXV_mort_subtable_type1_StateOptRecData optdata = + (GXV_mort_subtable_type1_StateOptRecData)valid->statetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->substitutionTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &( optdata->substitutionTable_length ); + + gxv_set_length_by_ushort_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_mort_subtable_type1_offset_to_subst_validate( + FT_Short wordOffset, + const FT_String* tag, + FT_Byte state, + GXV_Validator valid ) + { + FT_UShort substTable; + FT_UShort substTable_limit; + + FT_UNUSED( tag ); + FT_UNUSED( state ); + + + substTable = + ((GXV_mort_subtable_type1_StateOptRec *) + (valid->statetable.optdata))->substitutionTable; + substTable_limit = + (FT_UShort)( substTable + + ((GXV_mort_subtable_type1_StateOptRec *) + (valid->statetable.optdata))->substitutionTable_length ); + + valid->min_gid = (FT_UShort)( ( substTable - wordOffset * 2 ) / 2 ); + valid->max_gid = (FT_UShort)( ( substTable_limit - wordOffset * 2 ) / 2 ); + valid->max_gid = (FT_UShort)( FT_MAX( valid->max_gid, + valid->face->num_glyphs ) ); + + /* XXX: check range? */ + + /* TODO: min_gid & max_gid comparison with ClassTable contents */ + } + + + static void + gxv_mort_subtable_type1_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort setMark; + FT_UShort dontAdvance; +#endif + FT_UShort reserved; + FT_Short markOffset; + FT_Short currentOffset; + + FT_UNUSED( table ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setMark = (FT_UShort)( flags >> 15 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + reserved = (FT_Short)( flags & 0x3FFF ); + + markOffset = (FT_Short)( glyphOffset_p->ul >> 16 ); + currentOffset = (FT_Short)( glyphOffset_p->ul ); + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + gxv_mort_subtable_type1_offset_to_subst_validate( markOffset, + "markOffset", + state, + valid ); + + gxv_mort_subtable_type1_offset_to_subst_validate( currentOffset, + "currentOffset", + state, + valid ); + } + + + static void + gxv_mort_subtable_type1_substTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort num_gids = (FT_UShort)( + ((GXV_mort_subtable_type1_StateOptRec *) + (valid->statetable.optdata))->substitutionTable_length / 2 ); + FT_UShort i; + + + GXV_NAME_ENTER( "validating contents of substitutionTable" ); + for ( i = 0; i < num_gids ; i ++ ) + { + FT_UShort dst_gid; + + + GXV_LIMIT_CHECK( 2 ); + dst_gid = FT_NEXT_USHORT( p ); + + if ( dst_gid >= 0xFFFFU ) + continue; + + if ( dst_gid < valid->min_gid || valid->max_gid < dst_gid ) + { + GXV_TRACE(( "substTable include a strange gid[%d]=%d >" + " out of define range (%d..%d)\n", + i, dst_gid, valid->min_gid, valid->max_gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + } + + GXV_EXIT; + } + + + /* + * subtable for Contextual glyph substitution is a modified StateTable. + * In addition to classTable, stateArray, and entryTable, the field + * `substitutionTable' is added. + */ + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type1_StateOptRec st_rec; + + + GXV_NAME_ENTER( "mort chain subtable type1 (Contextual Glyph Subst)" ); + + GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE1_HEADER_SIZE ); + + valid->statetable.optdata = + &st_rec; + valid->statetable.optdata_load_func = + gxv_mort_subtable_type1_substitutionTable_load; + valid->statetable.subtable_setup_func = + gxv_mort_subtable_type1_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->statetable.entry_validate_func = + + gxv_mort_subtable_type1_entry_validate; + gxv_StateTable_validate( p, limit, valid ); + + gxv_mort_subtable_type1_substTable_validate( + table + st_rec.substitutionTable, + table + st_rec.substitutionTable + st_rec.substitutionTable_length, + valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort2.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort2.c new file mode 100644 index 000000000..9e08fb792 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort2.c @@ -0,0 +1,311 @@ +/***************************************************************************/ +/* */ +/* gxvmort2.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type2 (Ligature Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + typedef struct GXV_mort_subtable_type2_StateOptRec_ + { + FT_UShort ligActionTable; + FT_UShort componentTable; + FT_UShort ligatureTable; + FT_UShort ligActionTable_length; + FT_UShort componentTable_length; + FT_UShort ligatureTable_length; + + } GXV_mort_subtable_type2_StateOptRec, + *GXV_mort_subtable_type2_StateOptRecData; + +#define GXV_MORT_SUBTABLE_TYPE2_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 2 + 2 + 2 ) + + + static void + gxv_mort_subtable_type2_opttable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + optdata->ligActionTable = FT_NEXT_USHORT( p ); + optdata->componentTable = FT_NEXT_USHORT( p ); + optdata->ligatureTable = FT_NEXT_USHORT( p ); + + GXV_TRACE(( "offset to ligActionTable=0x%04x\n", + optdata->ligActionTable )); + GXV_TRACE(( "offset to componentTable=0x%04x\n", + optdata->componentTable )); + GXV_TRACE(( "offset to ligatureTable=0x%04x\n", + optdata->ligatureTable )); + } + + + static void + gxv_mort_subtable_type2_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort *classTable_length_p, + FT_UShort *stateArray_length_p, + FT_UShort *entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[6]; + FT_UShort *l[6]; + FT_UShort buff[7]; + + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + + GXV_NAME_ENTER( "subtable boundaries setup" ); + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->ligActionTable; + o[4] = optdata->componentTable; + o[5] = optdata->ligatureTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->ligActionTable_length); + l[4] = &(optdata->componentTable_length); + l[5] = &(optdata->ligatureTable_length); + + gxv_set_length_by_ushort_offset( o, l, buff, 6, table_size, valid ); + + GXV_TRACE(( "classTable: offset=0x%04x length=0x%04x\n", + classTable, *classTable_length_p )); + GXV_TRACE(( "stateArray: offset=0x%04x length=0x%04x\n", + stateArray, *stateArray_length_p )); + GXV_TRACE(( "entryTable: offset=0x%04x length=0x%04x\n", + entryTable, *entryTable_length_p )); + GXV_TRACE(( "ligActionTable: offset=0x%04x length=0x%04x\n", + optdata->ligActionTable, + optdata->ligActionTable_length )); + GXV_TRACE(( "componentTable: offset=0x%04x length=0x%04x\n", + optdata->componentTable, + optdata->componentTable_length )); + GXV_TRACE(( "ligatureTable: offset=0x%04x length=0x%04x\n", + optdata->ligatureTable, + optdata->ligatureTable_length )); + + GXV_EXIT; + } + + + static void + gxv_mort_subtable_type2_ligActionOffset_validate( + FT_Bytes table, + FT_UShort ligActionOffset, + GXV_Validator valid ) + { + /* access ligActionTable */ + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + FT_Bytes lat_base = table + optdata->ligActionTable; + FT_Bytes p = table + ligActionOffset; + FT_Bytes lat_limit = lat_base + optdata->ligActionTable; + + + GXV_32BIT_ALIGNMENT_VALIDATE( ligActionOffset ); + if ( p < lat_base ) + { + GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%d byte rewind)\n", + ligActionOffset, lat_base - p )); + + /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */ + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + else if ( lat_limit < p ) + { + GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%d byte overrun)\n", + ligActionOffset, p - lat_limit )); + + /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */ + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + else + { + /* validate entry in ligActionTable */ + FT_ULong lig_action; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort last; + FT_UShort store; +#endif + FT_ULong offset; + + + lig_action = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + last = (FT_UShort)( ( lig_action >> 31 ) & 1 ); + store = (FT_UShort)( ( lig_action >> 30 ) & 1 ); +#endif + + /* Apple spec defines this offset as a word offset */ + offset = lig_action & 0x3FFFFFFFUL; + if ( offset * 2 < optdata->ligatureTable ) + { + GXV_TRACE(( "too short offset 0x%08x:" + " 2 x offset < ligatureTable (%d byte rewind)\n", + offset, optdata->ligatureTable - offset * 2 )); + + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } else if ( offset * 2 > + optdata->ligatureTable + optdata->ligatureTable_length ) + { + GXV_TRACE(( "too long offset 0x%08x:" + " 2 x offset > ligatureTable + ligatureTable_length" + " (%d byte overrun)\n", + offset, + optdata->ligatureTable + optdata->ligatureTable_length + - offset * 2 )); + + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + } + } + + + static void + gxv_mort_subtable_type2_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort setComponent; + FT_UShort dontAdvance; +#endif + FT_UShort offset; + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setComponent = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + + offset = (FT_UShort)( flags & 0x3FFFU ); + + if ( 0 < offset ) + gxv_mort_subtable_type2_ligActionOffset_validate( table, offset, + valid ); + } + + + static void + gxv_mort_subtable_type2_ligatureTable_validate( FT_Bytes table, + GXV_Validator valid ) + { + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + FT_Bytes p = table + optdata->ligatureTable; + FT_Bytes limit = table + optdata->ligatureTable + + optdata->ligatureTable_length; + + + GXV_NAME_ENTER( "mort chain subtable type2 - substitutionTable" ); + if ( 0 != optdata->ligatureTable ) + { + /* Apple does not give specification of ligatureTable format */ + while ( p < limit ) + { + FT_UShort lig_gid; + + + GXV_LIMIT_CHECK( 2 ); + lig_gid = FT_NEXT_USHORT( p ); + + if ( valid->face->num_glyphs < lig_gid ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + } + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type2_StateOptRec lig_rec; + + + GXV_NAME_ENTER( "mort chain subtable type2 (Ligature Substitution)" ); + + GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE2_HEADER_SIZE ); + + valid->statetable.optdata = + &lig_rec; + valid->statetable.optdata_load_func = + gxv_mort_subtable_type2_opttable_load; + valid->statetable.subtable_setup_func = + gxv_mort_subtable_type2_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_mort_subtable_type2_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + p += valid->subtable_length; + gxv_mort_subtable_type2_ligatureTable_validate( table, valid ); + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort4.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort4.c new file mode 100644 index 000000000..83470988c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort4.c @@ -0,0 +1,125 @@ +/***************************************************************************/ +/* */ +/* gxvmort4.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type4 (Non-Contextual Glyph Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + static void + gxv_mort_subtable_type4_lookupval_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + gxv_glyphid_validate( value_p->u, valid ); + } + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + .... | + | + 16bit value array | + +===============+ | + | value | <-------+ + .... + */ + + static GXV_LookupValueDesc + gxv_mort_subtable_type4_lookupfmt4_transit( + FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( "mort chain subtable type4 " + "(Non-Contextual Glyph Substitution)" ); + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_mort_subtable_type4_lookupval_validate; + valid->lookupfmt4_trans = gxv_mort_subtable_type4_lookupfmt4_transit; + + gxv_LookupTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort5.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort5.c new file mode 100644 index 000000000..32cfb0363 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmort5.c @@ -0,0 +1,233 @@ +/***************************************************************************/ +/* */ +/* gxvmort5.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type5 (Contextual Glyph Insertion) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + /* + * mort subtable type5 (Contextual Glyph Insertion) + * has the format of StateTable with insertion-glyph-list, + * but without name. The offset is given by glyphOffset in + * entryTable. There is no table location declaration + * like xxxTable. + */ + + typedef struct GXV_mort_subtable_type5_StateOptRec_ + { + FT_UShort classTable; + FT_UShort stateArray; + FT_UShort entryTable; + +#define GXV_MORT_SUBTABLE_TYPE5_HEADER_SIZE GXV_STATETABLE_HEADER_SIZE + + FT_UShort* classTable_length_p; + FT_UShort* stateArray_length_p; + FT_UShort* entryTable_length_p; + + } GXV_mort_subtable_type5_StateOptRec, + *GXV_mort_subtable_type5_StateOptRecData; + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type5_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + GXV_mort_subtable_type5_StateOptRecData optdata = + (GXV_mort_subtable_type5_StateOptRecData)valid->statetable.optdata; + + + gxv_StateTable_subtable_setup( table_size, + classTable, + stateArray, + entryTable, + classTable_length_p, + stateArray_length_p, + entryTable_length_p, + valid ); + + optdata->classTable = classTable; + optdata->stateArray = stateArray; + optdata->entryTable = entryTable; + + optdata->classTable_length_p = classTable_length_p; + optdata->stateArray_length_p = stateArray_length_p; + optdata->entryTable_length_p = entryTable_length_p; + } + + + static void + gxv_mort_subtable_type5_InsertList_validate( FT_UShort offset, + FT_UShort count, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + /* + * We don't know the range of insertion-glyph-list. + * Set range by whole of state table. + */ + FT_Bytes p = table + offset; + + GXV_mort_subtable_type5_StateOptRecData optdata = + (GXV_mort_subtable_type5_StateOptRecData)valid->statetable.optdata; + + if ( optdata->classTable < offset && + offset < optdata->classTable + *(optdata->classTable_length_p) ) + GXV_TRACE(( " offset runs into ClassTable" )); + if ( optdata->stateArray < offset && + offset < optdata->stateArray + *(optdata->stateArray_length_p) ) + GXV_TRACE(( " offset runs into StateArray" )); + if ( optdata->entryTable < offset && + offset < optdata->entryTable + *(optdata->entryTable_length_p) ) + GXV_TRACE(( " offset runs into EntryTable" )); + +#ifndef GXV_LOAD_TRACE_VARS + GXV_LIMIT_CHECK( count * 2 ); +#else + while ( p < table + offset + ( count * 2 ) ) + { + FT_UShort insert_glyphID; + + + GXV_LIMIT_CHECK( 2 ); + insert_glyphID = FT_NEXT_USHORT( p ); + GXV_TRACE(( " 0x%04x", insert_glyphID )); + } + GXV_TRACE(( "\n" )); +#endif + } + + + static void + gxv_mort_subtable_type5_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_Bool setMark; + FT_Bool dontAdvance; + FT_Bool currentIsKashidaLike; + FT_Bool markedIsKashidaLike; + FT_Bool currentInsertBefore; + FT_Bool markedInsertBefore; +#endif + FT_Byte currentInsertCount; + FT_Byte markedInsertCount; + FT_UShort currentInsertList; + FT_UShort markedInsertList; + + FT_UNUSED( state ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setMark = FT_BOOL( ( flags >> 15 ) & 1 ); + dontAdvance = FT_BOOL( ( flags >> 14 ) & 1 ); + currentIsKashidaLike = FT_BOOL( ( flags >> 13 ) & 1 ); + markedIsKashidaLike = FT_BOOL( ( flags >> 12 ) & 1 ); + currentInsertBefore = FT_BOOL( ( flags >> 11 ) & 1 ); + markedInsertBefore = FT_BOOL( ( flags >> 10 ) & 1 ); +#endif + + currentInsertCount = (FT_Byte)( ( flags >> 5 ) & 0x1F ); + markedInsertCount = (FT_Byte)( flags & 0x001F ); + + currentInsertList = (FT_UShort)( glyphOffset->ul >> 16 ); + markedInsertList = (FT_UShort)( glyphOffset->ul ); + + if ( 0 != currentInsertList && 0 != currentInsertCount ) + { + gxv_mort_subtable_type5_InsertList_validate( currentInsertList, + currentInsertCount, + table, + limit, + valid ); + } + + if ( 0 != markedInsertList && 0 != markedInsertCount ) + { + gxv_mort_subtable_type5_InsertList_validate( markedInsertList, + markedInsertCount, + table, + limit, + valid ); + } + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type5_StateOptRec et_rec; + GXV_mort_subtable_type5_StateOptRecData et = &et_rec; + + + GXV_NAME_ENTER( "mort chain subtable type5 (Glyph Insertion)" ); + + GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE5_HEADER_SIZE ); + + valid->statetable.optdata = + et; + valid->statetable.optdata_load_func = + NULL; + valid->statetable.subtable_setup_func = + gxv_mort_subtable_type5_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->statetable.entry_validate_func = + gxv_mort_subtable_type5_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.c new file mode 100644 index 000000000..4b1dd0050 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.c @@ -0,0 +1,199 @@ +/***************************************************************************/ +/* */ +/* gxvmorx.c */ +/* */ +/* TrueTypeGX/AAT morx table validation (body). */ +/* */ +/* Copyright 2005, 2008 by */ +/* suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + static void + gxv_morx_subtables_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nSubtables, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_Validate_Func fmt_funcs_table[] = + { + gxv_morx_subtable_type0_validate, /* 0 */ + gxv_morx_subtable_type1_validate, /* 1 */ + gxv_morx_subtable_type2_validate, /* 2 */ + NULL, /* 3 */ + gxv_morx_subtable_type4_validate, /* 4 */ + gxv_morx_subtable_type5_validate, /* 5 */ + + }; + + GXV_Validate_Func func; + + FT_UShort i; + + + GXV_NAME_ENTER( "subtables in a chain" ); + + for ( i = 0; i < nSubtables; i++ ) + { + FT_ULong length; + FT_ULong coverage; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong subFeatureFlags; +#endif + FT_ULong type; + FT_ULong rest; + + + GXV_LIMIT_CHECK( 4 + 4 + 4 ); + length = FT_NEXT_ULONG( p ); + coverage = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + subFeatureFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + + GXV_TRACE(( "validating chain subtable %d/%d (%d bytes)\n", + i + 1, nSubtables, length )); + + type = coverage & 0x0007; + rest = length - ( 4 + 4 + 4 ); + GXV_LIMIT_CHECK( rest ); + + /* morx coverage consists of mort_coverage & 16bit padding */ + gxv_mort_coverage_validate( (FT_UShort)( ( coverage >> 16 ) | coverage ), + valid ); + if ( type > 5 ) + FT_INVALID_FORMAT; + + func = fmt_funcs_table[type]; + if ( func == NULL ) + GXV_TRACE(( "morx type %d is reserved\n", type )); + + func( p, p + rest, valid ); + + /* TODO: subFeatureFlags should be unique in a table? */ + p += rest; + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_morx_chain_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong defaultFlags; +#endif + FT_ULong chainLength; + FT_ULong nFeatureFlags; + FT_ULong nSubtables; + + + GXV_NAME_ENTER( "morx chain header" ); + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 ); +#ifdef GXV_LOAD_UNUSED_VARS + defaultFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + chainLength = FT_NEXT_ULONG( p ); + nFeatureFlags = FT_NEXT_ULONG( p ); + nSubtables = FT_NEXT_ULONG( p ); + + /* feature-array of morx is same with that of mort */ + gxv_mort_featurearray_validate( p, limit, nFeatureFlags, valid ); + p += valid->subtable_length; + + if ( nSubtables >= 0x10000L ) + FT_INVALID_DATA; + + gxv_morx_subtables_validate( p, table + chainLength, + (FT_UShort)nSubtables, valid ); + + valid->subtable_length = chainLength; + + /* TODO: defaultFlags should be compared with the flags in tables */ + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_morx_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + FT_Bytes p = table; + FT_Bytes limit = 0; + FT_ULong version; + FT_ULong nChains; + FT_ULong i; + + + valid->root = ftvalid; + valid->face = face; + + FT_TRACE3(( "validating `morx' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 4 ); + version = FT_NEXT_ULONG( p ); + nChains = FT_NEXT_ULONG( p ); + + if ( version != 0x00020000UL ) + FT_INVALID_FORMAT; + + for ( i = 0; i < nChains; i++ ) + { + GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains )); + GXV_32BIT_ALIGNMENT_VALIDATE( p - table ); + gxv_morx_chain_validate( p, limit, valid ); + p += valid->subtable_length; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.h b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.h new file mode 100644 index 000000000..28c1a44f6 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* gxvmorx.h */ +/* */ +/* TrueTypeGX/AAT common definition for morx table (specification). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVMORX_H__ +#define __GXVMORX_H__ + + +#include "gxvalid.h" +#include "gxvcommn.h" +#include "gxvmort.h" + +#include FT_SFNT_NAMES_H + + + FT_LOCAL( void ) + gxv_morx_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + +#endif /* __GXVMORX_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx0.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx0.c new file mode 100644 index 000000000..6a736c177 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx0.c @@ -0,0 +1,111 @@ +/***************************************************************************/ +/* */ +/* gxvmorx0.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type0 (Indic Script Rearrangement) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + static void + gxv_morx_subtable_type0_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_XStateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort markFirst; + FT_UShort dontAdvance; + FT_UShort markLast; +#endif + FT_UShort reserved; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort verb; +#endif + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + markFirst = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + markLast = (FT_UShort)( ( flags >> 13 ) & 1 ); +#endif + + reserved = (FT_UShort)( flags & 0x1FF0 ); +#ifdef GXV_LOAD_UNUSED_VARS + verb = (FT_UShort)( flags & 0x000F ); +#endif + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + FT_INVALID_DATA; + } + } + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( + "morx chain subtable type0 (Indic-Script Rearrangement)" ); + + GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE ); + + valid->xstatetable.optdata = NULL; + valid->xstatetable.optdata_load_func = NULL; + valid->xstatetable.subtable_setup_func = NULL; + valid->xstatetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type0_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx1.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx1.c new file mode 100644 index 000000000..ce0009a16 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx1.c @@ -0,0 +1,277 @@ +/***************************************************************************/ +/* */ +/* gxvmorx1.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type1 (Contextual Substitution) subtable. */ +/* */ +/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + typedef struct GXV_morx_subtable_type1_StateOptRec_ + { + FT_ULong substitutionTable; + FT_ULong substitutionTable_length; + FT_UShort substitutionTable_num_lookupTables; + + } GXV_morx_subtable_type1_StateOptRec, + *GXV_morx_subtable_type1_StateOptRecData; + + +#define GXV_MORX_SUBTABLE_TYPE1_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 2 ) + + + static void + gxv_morx_subtable_type1_substitutionTable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + + GXV_LIMIT_CHECK( 2 ); + optdata->substitutionTable = FT_NEXT_USHORT( p ); + } + + + static void + gxv_morx_subtable_type1_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[4]; + FT_ULong *l[4]; + FT_ULong buff[5]; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->substitutionTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->substitutionTable_length); + + gxv_set_length_by_ulong_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_morx_subtable_type1_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_TRACE_VARS + FT_UShort setMark; + FT_UShort dontAdvance; +#endif + FT_UShort reserved; + FT_Short markIndex; + FT_Short currentIndex; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + FT_UNUSED( state ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_TRACE_VARS + setMark = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + + reserved = (FT_UShort)( flags & 0x3FFF ); + + markIndex = (FT_Short)( glyphOffset_p->ul >> 16 ); + currentIndex = (FT_Short)( glyphOffset_p->ul ); + + GXV_TRACE(( " setMark=%01d dontAdvance=%01d\n", + setMark, dontAdvance )); + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + GXV_TRACE(( "markIndex = %d, currentIndex = %d\n", + markIndex, currentIndex )); + + if ( optdata->substitutionTable_num_lookupTables < markIndex + 1 ) + optdata->substitutionTable_num_lookupTables = + (FT_Short)( markIndex + 1 ); + + if ( optdata->substitutionTable_num_lookupTables < currentIndex + 1 ) + optdata->substitutionTable_num_lookupTables = + (FT_Short)( currentIndex + 1 ); + } + + + static void + gxv_morx_subtable_type1_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); /* for the non-debugging case */ + + GXV_TRACE(( "morx subtable type1 subst.: %d -> %d\n", glyph, value_p->u )); + + if ( value_p->u > valid->face->num_glyphs ) + FT_INVALID_GLYPH_ID; + } + + + static GXV_LookupValueDesc + gxv_morx_subtable_type1_LookupFmt4_transit( + FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + /* + * TODO: length should be limit? + **/ + static void + gxv_morx_subtable_type1_substitutionTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + + /* TODO: calculate offset/length for each lookupTables */ + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_morx_subtable_type1_LookupValue_validate; + valid->lookupfmt4_trans = gxv_morx_subtable_type1_LookupFmt4_transit; + + for ( i = 0; i < optdata->substitutionTable_num_lookupTables; i++ ) + { + FT_ULong offset; + + + GXV_LIMIT_CHECK( 4 ); + offset = FT_NEXT_ULONG( p ); + + gxv_LookupTable_validate( table + offset, limit, valid ); + } + + /* TODO: overlapping of lookupTables in substitutionTable */ + } + + + /* + * subtable for Contextual glyph substitution is a modified StateTable. + * In addition to classTable, stateArray, entryTable, the field + * `substitutionTable' is added. + */ + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type1_StateOptRec st_rec; + + + GXV_NAME_ENTER( "morx chain subtable type1 (Contextual Glyph Subst)" ); + + GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE1_HEADER_SIZE ); + + st_rec.substitutionTable_num_lookupTables = 0; + + valid->xstatetable.optdata = + &st_rec; + valid->xstatetable.optdata_load_func = + gxv_morx_subtable_type1_substitutionTable_load; + valid->xstatetable.subtable_setup_func = + gxv_morx_subtable_type1_subtable_setup; + valid->xstatetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type1_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + gxv_morx_subtable_type1_substitutionTable_validate( + table + st_rec.substitutionTable, + table + st_rec.substitutionTable + st_rec.substitutionTable_length, + valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx2.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx2.c new file mode 100644 index 000000000..bc18c6b8a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx2.c @@ -0,0 +1,325 @@ +/***************************************************************************/ +/* */ +/* gxvmorx2.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type2 (Ligature Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + typedef struct GXV_morx_subtable_type2_StateOptRec_ + { + FT_ULong ligActionTable; + FT_ULong componentTable; + FT_ULong ligatureTable; + FT_ULong ligActionTable_length; + FT_ULong componentTable_length; + FT_ULong ligatureTable_length; + + } GXV_morx_subtable_type2_StateOptRec, + *GXV_morx_subtable_type2_StateOptRecData; + + +#define GXV_MORX_SUBTABLE_TYPE2_HEADER_SIZE \ + ( GXV_XSTATETABLE_HEADER_SIZE + 4 + 4 + 4 ) + + + static void + gxv_morx_subtable_type2_opttable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + + GXV_LIMIT_CHECK( 4 + 4 + 4 ); + optdata->ligActionTable = FT_NEXT_ULONG( p ); + optdata->componentTable = FT_NEXT_ULONG( p ); + optdata->ligatureTable = FT_NEXT_ULONG( p ); + + GXV_TRACE(( "offset to ligActionTable=0x%08x\n", + optdata->ligActionTable )); + GXV_TRACE(( "offset to componentTable=0x%08x\n", + optdata->componentTable )); + GXV_TRACE(( "offset to ligatureTable=0x%08x\n", + optdata->ligatureTable )); + } + + + static void + gxv_morx_subtable_type2_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[6]; + FT_ULong* l[6]; + FT_ULong buff[7]; + + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + + GXV_NAME_ENTER( "subtable boundaries setup" ); + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->ligActionTable; + o[4] = optdata->componentTable; + o[5] = optdata->ligatureTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->ligActionTable_length); + l[4] = &(optdata->componentTable_length); + l[5] = &(optdata->ligatureTable_length); + + gxv_set_length_by_ulong_offset( o, l, buff, 6, table_size, valid ); + + GXV_TRACE(( "classTable: offset=0x%08x length=0x%08x\n", + classTable, *classTable_length_p )); + GXV_TRACE(( "stateArray: offset=0x%08x length=0x%08x\n", + stateArray, *stateArray_length_p )); + GXV_TRACE(( "entryTable: offset=0x%08x length=0x%08x\n", + entryTable, *entryTable_length_p )); + GXV_TRACE(( "ligActionTable: offset=0x%08x length=0x%08x\n", + optdata->ligActionTable, + optdata->ligActionTable_length )); + GXV_TRACE(( "componentTable: offset=0x%08x length=0x%08x\n", + optdata->componentTable, + optdata->componentTable_length )); + GXV_TRACE(( "ligatureTable: offset=0x%08x length=0x%08x\n", + optdata->ligatureTable, + optdata->ligatureTable_length )); + + GXV_EXIT; + } + + +#define GXV_MORX_LIGACTION_ENTRY_SIZE 4 + + + static void + gxv_morx_subtable_type2_ligActionIndex_validate( + FT_Bytes table, + FT_UShort ligActionIndex, + GXV_Validator valid ) + { + /* access ligActionTable */ + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + FT_Bytes lat_base = table + optdata->ligActionTable; + FT_Bytes p = lat_base + + ligActionIndex * GXV_MORX_LIGACTION_ENTRY_SIZE; + FT_Bytes lat_limit = lat_base + optdata->ligActionTable; + + + if ( p < lat_base ) + { + GXV_TRACE(( "p < lat_base (%d byte rewind)\n", lat_base - p )); + FT_INVALID_OFFSET; + } + else if ( lat_limit < p ) + { + GXV_TRACE(( "lat_limit < p (%d byte overrun)\n", p - lat_limit )); + FT_INVALID_OFFSET; + } + + { + /* validate entry in ligActionTable */ + FT_ULong lig_action; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort last; + FT_UShort store; +#endif + FT_ULong offset; + + + lig_action = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + last = (FT_UShort)( ( lig_action >> 31 ) & 1 ); + store = (FT_UShort)( ( lig_action >> 30 ) & 1 ); +#endif + + offset = lig_action & 0x3FFFFFFFUL; + + /* this offset is 30-bit signed value to add to GID */ + /* it is different from the location offset in mort */ + if ( ( offset & 0x3FFF0000UL ) == 0x3FFF0000UL ) + { + if ( offset + valid->face->num_glyphs > 0x40000000UL ) + return; + + GXV_TRACE(( "ligature action table includes" + " too negative offset moving all GID" + " below defined range: 0x%04x\n", + offset & 0xFFFFU )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + else if ( ( offset & 0x3FFF0000UL ) == 0x0000000UL ) + { + if ( offset + valid->face->num_glyphs < 0 ) + return; + + GXV_TRACE(( "ligature action table includes" + " too large offset moving all GID" + " over defined range: 0x%04x\n", + offset & 0xFFFFU )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + + GXV_TRACE(( "ligature action table includes" + " invalid offset to add to 16-bit GID:" + " 0x%08x\n", offset )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + } + + + static void + gxv_morx_subtable_type2_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort setComponent; + FT_UShort dontAdvance; + FT_UShort performAction; +#endif + FT_UShort reserved; + FT_UShort ligActionIndex; + + FT_UNUSED( state ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setComponent = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + performAction = (FT_UShort)( ( flags >> 13 ) & 1 ); +#endif + + reserved = (FT_UShort)( flags & 0x1FFF ); + ligActionIndex = glyphOffset_p->u; + + if ( reserved > 0 ) + GXV_TRACE(( " reserved 14bit is non-zero\n" )); + + if ( 0 < ligActionIndex ) + gxv_morx_subtable_type2_ligActionIndex_validate( + table, ligActionIndex, valid ); + } + + + static void + gxv_morx_subtable_type2_ligatureTable_validate( FT_Bytes table, + GXV_Validator valid ) + { + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + FT_Bytes p = table + optdata->ligatureTable; + FT_Bytes limit = table + optdata->ligatureTable + + optdata->ligatureTable_length; + + + GXV_NAME_ENTER( "morx chain subtable type2 - substitutionTable" ); + + if ( 0 != optdata->ligatureTable ) + { + /* Apple does not give specification of ligatureTable format */ + while ( p < limit ) + { + FT_UShort lig_gid; + + + GXV_LIMIT_CHECK( 2 ); + lig_gid = FT_NEXT_USHORT( p ); + if ( lig_gid < valid->face->num_glyphs ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + } + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type2_StateOptRec lig_rec; + + + GXV_NAME_ENTER( "morx chain subtable type2 (Ligature Substitution)" ); + + GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE2_HEADER_SIZE ); + + valid->xstatetable.optdata = + &lig_rec; + valid->xstatetable.optdata_load_func = + gxv_morx_subtable_type2_opttable_load; + valid->xstatetable.subtable_setup_func = + gxv_morx_subtable_type2_subtable_setup; + valid->xstatetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_USHORT; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type2_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + p += valid->subtable_length; + gxv_morx_subtable_type2_ligatureTable_validate( table, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx4.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx4.c new file mode 100644 index 000000000..c0d2f78e3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx4.c @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* gxvmorx4.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for "morx" type4 (Non-Contextual Glyph Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + GXV_NAME_ENTER( "morx chain subtable type4 " + "(Non-Contextual Glyph Substitution)" ); + + gxv_mort_subtable_type4_validate( table, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx5.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx5.c new file mode 100644 index 000000000..d8cf70079 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvmorx5.c @@ -0,0 +1,225 @@ +/***************************************************************************/ +/* */ +/* gxvmorx5.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type5 (Contextual Glyph Insertion) subtable. */ +/* */ +/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + /* + * `morx' subtable type5 (Contextual Glyph Insertion) + * has format of a StateTable with insertion-glyph-list + * without name. However, the 32bit offset from the head + * of subtable to the i-g-l is given after `entryTable', + * without variable name specification (the existence of + * this offset to the table is different from mort type5). + */ + + + typedef struct GXV_morx_subtable_type5_StateOptRec_ + { + FT_ULong insertionGlyphList; + FT_ULong insertionGlyphList_length; + + } GXV_morx_subtable_type5_StateOptRec, + *GXV_morx_subtable_type5_StateOptRecData; + + +#define GXV_MORX_SUBTABLE_TYPE5_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 4 ) + + + static void + gxv_morx_subtable_type5_insertionGlyphList_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type5_StateOptRecData optdata = + (GXV_morx_subtable_type5_StateOptRecData)valid->xstatetable.optdata; + + + GXV_LIMIT_CHECK( 4 ); + optdata->insertionGlyphList = FT_NEXT_ULONG( p ); + } + + + static void + gxv_morx_subtable_type5_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[4]; + FT_ULong* l[4]; + FT_ULong buff[5]; + + GXV_morx_subtable_type5_StateOptRecData optdata = + (GXV_morx_subtable_type5_StateOptRecData)valid->xstatetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->insertionGlyphList; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->insertionGlyphList_length); + + gxv_set_length_by_ulong_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_morx_subtable_type5_InsertList_validate( FT_UShort table_index, + FT_UShort count, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table + table_index * 2; + + +#ifndef GXV_LOAD_TRACE_VARS + GXV_LIMIT_CHECK( count * 2 ); +#else + while ( p < table + count * 2 + table_index * 2 ) + { + FT_UShort insert_glyphID; + + + GXV_LIMIT_CHECK( 2 ); + insert_glyphID = FT_NEXT_USHORT( p ); + GXV_TRACE(( " 0x%04x", insert_glyphID )); + } + + GXV_TRACE(( "\n" )); +#endif + } + + + static void + gxv_morx_subtable_type5_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_Bool setMark; + FT_Bool dontAdvance; + FT_Bool currentIsKashidaLike; + FT_Bool markedIsKashidaLike; + FT_Bool currentInsertBefore; + FT_Bool markedInsertBefore; +#endif + FT_Byte currentInsertCount; + FT_Byte markedInsertCount; + FT_Byte currentInsertList; + FT_UShort markedInsertList; + + FT_UNUSED( state ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setMark = FT_BOOL( ( flags >> 15 ) & 1 ); + dontAdvance = FT_BOOL( ( flags >> 14 ) & 1 ); + currentIsKashidaLike = FT_BOOL( ( flags >> 13 ) & 1 ); + markedIsKashidaLike = FT_BOOL( ( flags >> 12 ) & 1 ); + currentInsertBefore = FT_BOOL( ( flags >> 11 ) & 1 ); + markedInsertBefore = FT_BOOL( ( flags >> 10 ) & 1 ); +#endif + + currentInsertCount = (FT_Byte)( ( flags >> 5 ) & 0x1F ); + markedInsertCount = (FT_Byte)( flags & 0x001F ); + + currentInsertList = (FT_Byte) ( glyphOffset_p->ul >> 16 ); + markedInsertList = (FT_UShort)( glyphOffset_p->ul ); + + if ( currentInsertList && 0 != currentInsertCount ) + gxv_morx_subtable_type5_InsertList_validate( currentInsertList, + currentInsertCount, + table, limit, + valid ); + + if ( markedInsertList && 0 != markedInsertCount ) + gxv_morx_subtable_type5_InsertList_validate( markedInsertList, + markedInsertCount, + table, limit, + valid ); + } + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type5_StateOptRec et_rec; + GXV_morx_subtable_type5_StateOptRecData et = &et_rec; + + + GXV_NAME_ENTER( "morx chain subtable type5 (Glyph Insertion)" ); + + GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE5_HEADER_SIZE ); + + valid->xstatetable.optdata = + et; + valid->xstatetable.optdata_load_func = + gxv_morx_subtable_type5_insertionGlyphList_load; + valid->xstatetable.subtable_setup_func = + gxv_morx_subtable_type5_subtable_setup; + valid->xstatetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type5_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvopbd.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvopbd.c new file mode 100644 index 000000000..e12506094 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvopbd.c @@ -0,0 +1,217 @@ +/***************************************************************************/ +/* */ +/* gxvopbd.c */ +/* */ +/* TrueTypeGX/AAT opbd table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvopbd + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_opbd_DataRec_ + { + FT_UShort format; + FT_UShort valueOffset_min; + + } GXV_opbd_DataRec, *GXV_opbd_Data; + + +#define GXV_OPBD_DATA( FIELD ) GXV_TABLE_DATA( opbd, FIELD ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_opbd_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + /* offset in LookupTable is measured from the head of opbd table */ + FT_Bytes p = valid->root->base + value_p->u; + FT_Bytes limit = valid->root->limit; + FT_Short delta_value; + int i; + + + if ( value_p->u < GXV_OPBD_DATA( valueOffset_min ) ) + GXV_OPBD_DATA( valueOffset_min ) = value_p->u; + + for ( i = 0; i < 4; i++ ) + { + GXV_LIMIT_CHECK( 2 ); + delta_value = FT_NEXT_SHORT( p ); + + if ( GXV_OPBD_DATA( format ) ) /* format 1, value is ctrl pt. */ + { + if ( delta_value == -1 ) + continue; + + gxv_ctlPoint_validate( glyph, delta_value, valid ); + } + else /* format 0, value is distance */ + continue; + } + } + + + /* + opbd ---------------------+ + | + +===============+ | + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of opbd sfnt table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 4 * sizeof(FT_Short) [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + .... | + | + 48bit value array | + +===============+ | + | value | <-------+ + | | + | | + | | + +---------------+ + .... */ + + static GXV_LookupValueDesc + gxv_opbd_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + GXV_LookupValueDesc value; + + FT_UNUSED( lookuptbl_limit ); + FT_UNUSED( valid ); + + /* XXX: check range? */ + value.u = (FT_UShort)( base_value_p->u + + relative_gindex * 4 * sizeof ( FT_Short ) ); + + return value; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** opbd TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_opbd_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + GXV_opbd_DataRec opbdrec; + GXV_opbd_Data opbd = &opbdrec; + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_ULong version; + + + valid->root = ftvalid; + valid->table_data = opbd; + valid->face = face; + + FT_TRACE3(( "validating `opbd' table\n" )); + GXV_INIT; + GXV_OPBD_DATA( valueOffset_min ) = 0xFFFFU; + + + GXV_LIMIT_CHECK( 4 + 2 ); + version = FT_NEXT_ULONG( p ); + GXV_OPBD_DATA( format ) = FT_NEXT_USHORT( p ); + + + /* only 0x00010000 is defined (1996) */ + GXV_TRACE(( "(version=0x%08x)\n", version )); + if ( 0x00010000UL != version ) + FT_INVALID_FORMAT; + + /* only values 0 and 1 are defined (1996) */ + GXV_TRACE(( "(format=0x%04x)\n", GXV_OPBD_DATA( format ) )); + if ( 0x0001 < GXV_OPBD_DATA( format ) ) + FT_INVALID_FORMAT; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_opbd_LookupValue_validate; + valid->lookupfmt4_trans = gxv_opbd_LookupFmt4_transit; + + gxv_LookupTable_validate( p, limit, valid ); + p += valid->subtable_length; + + if ( p > table + GXV_OPBD_DATA( valueOffset_min ) ) + { + GXV_TRACE(( + "found overlap between LookupTable and opbd_value array\n" )); + FT_INVALID_OFFSET; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvprop.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvprop.c new file mode 100644 index 000000000..54777271a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvprop.c @@ -0,0 +1,329 @@ +/***************************************************************************/ +/* */ +/* gxvprop.c */ +/* */ +/* TrueTypeGX/AAT prop table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvprop + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_PROP_HEADER_SIZE ( 4 + 2 + 2 ) +#define GXV_PROP_SIZE_MIN GXV_PROP_HEADER_SIZE + + typedef struct GXV_prop_DataRec_ + { + FT_Fixed version; + + } GXV_prop_DataRec, *GXV_prop_Data; + +#define GXV_PROP_DATA( field ) GXV_TABLE_DATA( prop, field ) + +#define GXV_PROP_FLOATER 0x8000U +#define GXV_PROP_USE_COMPLEMENTARY_BRACKET 0x1000U +#define GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET 0x0F00U +#define GXV_PROP_ATTACHING_TO_RIGHT 0x0080U +#define GXV_PROP_RESERVED 0x0060U +#define GXV_PROP_DIRECTIONALITY_CLASS 0x001FU + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_prop_zero_advance_validate( FT_UShort gid, + GXV_Validator valid ) + { + FT_Face face; + FT_Error error; + FT_GlyphSlot glyph; + + + GXV_NAME_ENTER( "zero advance" ); + + face = valid->face; + + error = FT_Load_Glyph( face, + gid, + FT_LOAD_IGNORE_TRANSFORM ); + if ( error ) + FT_INVALID_GLYPH_ID; + + glyph = face->glyph; + + if ( glyph->advance.x != (FT_Pos)0 || + glyph->advance.y != (FT_Pos)0 ) + { + GXV_TRACE(( " found non-zero advance in zero-advance glyph\n" )); + FT_INVALID_DATA; + } + + GXV_EXIT; + } + + + /* Pass 0 as GLYPH to check the default property */ + static void + gxv_prop_property_validate( FT_UShort property, + FT_UShort glyph, + GXV_Validator valid ) + { + if ( glyph != 0 && ( property & GXV_PROP_FLOATER ) ) + gxv_prop_zero_advance_validate( glyph, valid ); + + if ( property & GXV_PROP_USE_COMPLEMENTARY_BRACKET ) + { + FT_UShort offset; + char complement; + + + offset = (FT_UShort)( property & GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET ); + if ( offset == 0 ) + { + GXV_TRACE(( " found zero offset to property\n" )); + FT_INVALID_OFFSET; + } + + complement = (char)( offset >> 8 ); + if ( complement & 0x08 ) + { + /* Top bit is set: negative */ + + /* Calculate the absolute offset */ + complement = (char)( ( complement & 0x07 ) + 1 ); + + /* The gid for complement must be greater than 0 */ + if ( glyph <= complement ) + { + GXV_TRACE(( " found non-positive glyph complement\n" )); + FT_INVALID_DATA; + } + } + else + { + /* The gid for complement must be the face. */ + gxv_glyphid_validate( (FT_UShort)( glyph + complement ), valid ); + } + } + else + { + if ( property & GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET ) + GXV_TRACE(( "glyph %d cannot have complementary bracketing\n", + glyph )); + } + + /* this is introduced in version 2.0 */ + if ( property & GXV_PROP_ATTACHING_TO_RIGHT ) + { + if ( GXV_PROP_DATA( version ) == 0x00010000UL ) + { + GXV_TRACE(( " found older version (1.0) in new version table\n" )); + FT_INVALID_DATA; + } + } + + if ( property & GXV_PROP_RESERVED ) + { + GXV_TRACE(( " found non-zero bits in reserved bits\n" )); + FT_INVALID_DATA; + } + + if ( ( property & GXV_PROP_DIRECTIONALITY_CLASS ) > 11 ) + { + /* TODO: Too restricted. Use the validation level. */ + if ( GXV_PROP_DATA( version ) == 0x00010000UL || + GXV_PROP_DATA( version ) == 0x00020000UL ) + { + GXV_TRACE(( " found too old version in directionality class\n" )); + FT_INVALID_DATA; + } + } + } + + + static void + gxv_prop_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + gxv_prop_property_validate( value_p->u, glyph, valid ); + } + + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + ... | + | + 16bit value array | + +===============+ | + | value | <-------+ + ... + */ + + static GXV_LookupValueDesc + gxv_prop_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof( FT_UShort ) ); + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** prop TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_prop_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_prop_DataRec proprec; + GXV_prop_Data prop = &proprec; + + FT_Fixed version; + FT_UShort format; + FT_UShort defaultProp; + + + valid->root = ftvalid; + valid->table_data = prop; + valid->face = face; + + FT_TRACE3(( "validating `prop' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + defaultProp = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " version 0x%08x\n", version )); + GXV_TRACE(( " format 0x%04x\n", format )); + GXV_TRACE(( " defaultProp 0x%04x\n", defaultProp )); + + /* only versions 1.0, 2.0, 3.0 are defined (1996) */ + if ( version != 0x00010000UL && + version != 0x00020000UL && + version != 0x00030000UL ) + { + GXV_TRACE(( " found unknown version\n" )); + FT_INVALID_FORMAT; + } + + + /* only formats 0x0000, 0x0001 are defined (1996) */ + if ( format > 1 ) + { + GXV_TRACE(( " found unknown format\n" )); + FT_INVALID_FORMAT; + } + + gxv_prop_property_validate( defaultProp, 0, valid ); + + if ( format == 0 ) + { + FT_TRACE3(( "(format 0, no per-glyph properties, " + "remaining %d bytes are skipped)", limit - p )); + goto Exit; + } + + /* format == 1 */ + GXV_PROP_DATA( version ) = version; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_prop_LookupValue_validate; + valid->lookupfmt4_trans = gxv_prop_LookupFmt4_transit; + + gxv_LookupTable_validate( p, limit, valid ); + + Exit: + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvtrak.c b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvtrak.c new file mode 100644 index 000000000..11fbd7ccf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gxvalid/gxvtrak.c @@ -0,0 +1,286 @@ +/***************************************************************************/ +/* */ +/* gxvtrak.c */ +/* */ +/* TrueTypeGX/AAT trak table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvtrak + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * referred track table format specification: + * http://developer.apple.com/fonts/TTRefMan/RM06/Chap6trak.html + * last update was 1996. + * ---------------------------------------------- + * [MINIMUM HEADER]: GXV_TRAK_SIZE_MIN + * version (fixed: 32bit) = 0x00010000 + * format (uint16: 16bit) = 0 is only defined (1996) + * horizOffset (uint16: 16bit) + * vertOffset (uint16: 16bit) + * reserved (uint16: 16bit) = 0 + * ---------------------------------------------- + * [VARIABLE BODY]: + * horizData + * header ( 2 + 2 + 4 + * trackTable + nTracks * ( 4 + 2 + 2 ) + * sizeTable + nSizes * 4 ) + * ---------------------------------------------- + * vertData + * header ( 2 + 2 + 4 + * trackTable + nTracks * ( 4 + 2 + 2 ) + * sizeTable + nSizes * 4 ) + * ---------------------------------------------- + */ + typedef struct GXV_trak_DataRec_ + { + FT_UShort trackValueOffset_min; + FT_UShort trackValueOffset_max; + + } GXV_trak_DataRec, *GXV_trak_Data; + + +#define GXV_TRAK_DATA( FIELD ) GXV_TABLE_DATA( trak, FIELD ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_trak_trackTable_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nTracks, + GXV_Validator valid ) + { + FT_Bytes p = table; + + FT_Fixed track, t; + FT_UShort nameIndex; + FT_UShort offset; + FT_UShort i, j; + + + GXV_NAME_ENTER( "trackTable" ); + + GXV_TRAK_DATA( trackValueOffset_min ) = 0xFFFFU; + GXV_TRAK_DATA( trackValueOffset_max ) = 0x0000; + + GXV_LIMIT_CHECK( nTracks * ( 4 + 2 + 2 ) ); + + for ( i = 0; i < nTracks; i ++ ) + { + p = table + i * ( 4 + 2 + 2 ); + track = FT_NEXT_LONG( p ); + nameIndex = FT_NEXT_USHORT( p ); + offset = FT_NEXT_USHORT( p ); + + if ( offset < GXV_TRAK_DATA( trackValueOffset_min ) ) + GXV_TRAK_DATA( trackValueOffset_min ) = offset; + if ( offset > GXV_TRAK_DATA( trackValueOffset_max ) ) + GXV_TRAK_DATA( trackValueOffset_max ) = offset; + + gxv_sfntName_validate( nameIndex, 256, 32767, valid ); + + for ( j = i; j < nTracks; j ++ ) + { + p = table + j * ( 4 + 2 + 2 ); + t = FT_NEXT_LONG( p ); + if ( t == track ) + GXV_TRACE(( "duplicated entries found for track value 0x%x\n", + track )); + } + } + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + static void + gxv_trak_trackData_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort nTracks; + FT_UShort nSizes; + FT_ULong sizeTableOffset; + + GXV_ODTECT( 4, odtect ); + + + GXV_ODTECT_INIT( odtect ); + GXV_NAME_ENTER( "trackData" ); + + /* read the header of trackData */ + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + nTracks = FT_NEXT_USHORT( p ); + nSizes = FT_NEXT_USHORT( p ); + sizeTableOffset = FT_NEXT_ULONG( p ); + + gxv_odtect_add_range( table, p - table, "trackData header", odtect ); + + /* validate trackTable */ + gxv_trak_trackTable_validate( p, limit, nTracks, valid ); + gxv_odtect_add_range( p, valid->subtable_length, + "trackTable", odtect ); + + /* sizeTable is array of FT_Fixed, don't check contents */ + p = valid->root->base + sizeTableOffset; + GXV_LIMIT_CHECK( nSizes * 4 ); + gxv_odtect_add_range( p, nSizes * 4, "sizeTable", odtect ); + + /* validate trackValueOffet */ + p = valid->root->base + GXV_TRAK_DATA( trackValueOffset_min ); + if ( limit - p < nTracks * nSizes * 2 ) + GXV_TRACE(( "too short trackValue array\n" )); + + p = valid->root->base + GXV_TRAK_DATA( trackValueOffset_max ); + GXV_LIMIT_CHECK( nSizes * 2 ); + + gxv_odtect_add_range( valid->root->base + + GXV_TRAK_DATA( trackValueOffset_min ), + GXV_TRAK_DATA( trackValueOffset_max ) + - GXV_TRAK_DATA( trackValueOffset_min ) + + nSizes * 2, + "trackValue array", odtect ); + + gxv_odtect_validate( odtect, valid ); + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** trak TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_trak_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + GXV_trak_DataRec trakrec; + GXV_trak_Data trak = &trakrec; + + FT_ULong version; + FT_UShort format; + FT_UShort horizOffset; + FT_UShort vertOffset; + FT_UShort reserved; + + + GXV_ODTECT( 3, odtect ); + + GXV_ODTECT_INIT( odtect ); + valid->root = ftvalid; + valid->table_data = trak; + valid->face = face; + + limit = valid->root->limit; + + FT_TRACE3(( "validating `trak' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 2 + 2 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + horizOffset = FT_NEXT_USHORT( p ); + vertOffset = FT_NEXT_USHORT( p ); + reserved = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " (version = 0x%08x)\n", version )); + GXV_TRACE(( " (format = 0x%04x)\n", format )); + GXV_TRACE(( " (horizOffset = 0x%04x)\n", horizOffset )); + GXV_TRACE(( " (vertOffset = 0x%04x)\n", vertOffset )); + GXV_TRACE(( " (reserved = 0x%04x)\n", reserved )); + + /* Version 1.0 (always:1996) */ + if ( version != 0x00010000UL ) + FT_INVALID_FORMAT; + + /* format 0 (always:1996) */ + if ( format != 0x0000 ) + FT_INVALID_FORMAT; + + GXV_32BIT_ALIGNMENT_VALIDATE( horizOffset ); + GXV_32BIT_ALIGNMENT_VALIDATE( vertOffset ); + + /* Reserved Fixed Value (always) */ + if ( reserved != 0x0000 ) + FT_INVALID_DATA; + + /* validate trackData */ + if ( 0 < horizOffset ) + { + gxv_trak_trackData_validate( table + horizOffset, limit, valid ); + gxv_odtect_add_range( table + horizOffset, valid->subtable_length, + "horizJustData", odtect ); + } + + if ( 0 < vertOffset ) + { + gxv_trak_trackData_validate( table + vertOffset, limit, valid ); + gxv_odtect_add_range( table + vertOffset, valid->subtable_length, + "vertJustData", odtect ); + } + + gxv_odtect_validate( odtect, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/adler32.c b/uppsrc/plugin/FT_fontsys/src/gzip/adler32.c new file mode 100644 index 000000000..c53f9dd12 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/adler32.c @@ -0,0 +1,48 @@ +/* adler32.c -- compute the Adler-32 checksum of a data stream + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zlib.h" + +#define BASE 65521L /* largest prime smaller than 65536 */ +#define NMAX 5552 +/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ + +#define DO1(buf,i) {s1 += buf[i]; s2 += s1;} +#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); +#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); +#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); +#define DO16(buf) DO8(buf,0); DO8(buf,8); + +/* ========================================================================= */ +ZEXPORT(uLong) adler32( /* adler, buf, len) */ + uLong adler, + const Bytef *buf, + uInt len ) +{ + unsigned long s1 = adler & 0xffff; + unsigned long s2 = (adler >> 16) & 0xffff; + int k; + + if (buf == Z_NULL) return 1L; + + while (len > 0) { + k = len < NMAX ? len : NMAX; + len -= k; + while (k >= 16) { + DO16(buf); + buf += 16; + k -= 16; + } + if (k != 0) do { + s1 += *buf++; + s2 += s1; + } while (--k); + s1 %= BASE; + s2 %= BASE; + } + return (s2 << 16) | s1; +} diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/ftgzip.c b/uppsrc/plugin/FT_fontsys/src/gzip/ftgzip.c new file mode 100644 index 000000000..3df31e350 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/ftgzip.c @@ -0,0 +1,688 @@ +/***************************************************************************/ +/* */ +/* ftgzip.c */ +/* */ +/* FreeType support for .gz compressed files. */ +/* */ +/* This optional component relies on zlib. It should mainly be used to */ +/* parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2002-2006, 2009-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H +#include FT_GZIP_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX Gzip_Err_ +#define FT_ERR_BASE FT_Mod_Err_Gzip + +#include FT_ERRORS_H + + +#ifdef FT_CONFIG_OPTION_USE_ZLIB + +#ifdef FT_CONFIG_OPTION_PIC +#error "gzip code does not support PIC yet" +#endif + +#ifdef FT_CONFIG_OPTION_SYSTEM_ZLIB + +#include <zlib.h> + +#else /* !FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + /* In this case, we include our own modified sources of the ZLib */ + /* within the "ftgzip" component. The modifications were necessary */ + /* to #include all files without conflicts, as well as preventing */ + /* the definition of "extern" functions that may cause linking */ + /* conflicts when a program is linked with both FreeType and the */ + /* original ZLib. */ + +#define NO_DUMMY_DECL +#ifndef USE_ZLIB_ZCALLOC +#define MY_ZCALLOC /* prevent all zcalloc() & zfree() in zutils.c */ +#endif + +#include "zlib.h" + +#undef SLOW +#define SLOW 1 /* we can't use asm-optimized sources here! */ + + /* Urgh. `inflate_mask' must not be declared twice -- C++ doesn't like + this. We temporarily disable it and load all necessary header files. */ +#define NO_INFLATE_MASK +#include "zutil.h" +#include "inftrees.h" +#include "infblock.h" +#include "infcodes.h" +#include "infutil.h" +#undef NO_INFLATE_MASK + + /* infutil.c must be included before infcodes.c */ +#include "zutil.c" +#include "inftrees.c" +#include "infutil.c" +#include "infcodes.c" +#include "infblock.c" +#include "inflate.c" +#include "adler32.c" + +#endif /* !FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** Z L I B M E M O R Y M A N A G E M E N T *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + /* it is better to use FreeType memory routines instead of raw + 'malloc/free' */ + + static voidpf + ft_gzip_alloc( FT_Memory memory, + uInt items, + uInt size ) + { + FT_ULong sz = (FT_ULong)size * items; + FT_Error error; + FT_Pointer p = NULL; + + + (void)FT_ALLOC( p, sz ); + return p; + } + + + static void + ft_gzip_free( FT_Memory memory, + voidpf address ) + { + FT_MEM_FREE( address ); + } + + +#if !defined( FT_CONFIG_OPTION_SYSTEM_ZLIB ) && !defined( USE_ZLIB_ZCALLOC ) + + local voidpf + zcalloc ( voidpf opaque, + unsigned items, + unsigned size ) + { + return ft_gzip_alloc( (FT_Memory)opaque, items, size ); + } + + local void + zcfree( voidpf opaque, + voidpf ptr ) + { + ft_gzip_free( (FT_Memory)opaque, ptr ); + } + +#endif /* !SYSTEM_ZLIB && !USE_ZLIB_ZCALLOC */ + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** Z L I B F I L E D E S C R I P T O R *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +#define FT_GZIP_BUFFER_SIZE 4096 + + typedef struct FT_GZipFileRec_ + { + FT_Stream source; /* parent/source stream */ + FT_Stream stream; /* embedding stream */ + FT_Memory memory; /* memory allocator */ + z_stream zstream; /* zlib input stream */ + + FT_ULong start; /* starting position, after .gz header */ + FT_Byte input[FT_GZIP_BUFFER_SIZE]; /* input read buffer */ + + FT_Byte buffer[FT_GZIP_BUFFER_SIZE]; /* output buffer */ + FT_ULong pos; /* position in output */ + FT_Byte* cursor; + FT_Byte* limit; + + } FT_GZipFileRec, *FT_GZipFile; + + + /* gzip flag byte */ +#define FT_GZIP_ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ +#define FT_GZIP_HEAD_CRC 0x02 /* bit 1 set: header CRC present */ +#define FT_GZIP_EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +#define FT_GZIP_ORIG_NAME 0x08 /* bit 3 set: original file name present */ +#define FT_GZIP_COMMENT 0x10 /* bit 4 set: file comment present */ +#define FT_GZIP_RESERVED 0xE0 /* bits 5..7: reserved */ + + + /* check and skip .gz header - we don't support `transparent' compression */ + static FT_Error + ft_gzip_check_header( FT_Stream stream ) + { + FT_Error error; + FT_Byte head[4]; + + + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ( head, 4 ) ) + goto Exit; + + /* head[0] && head[1] are the magic numbers; */ + /* head[2] is the method, and head[3] the flags */ + if ( head[0] != 0x1f || + head[1] != 0x8b || + head[2] != Z_DEFLATED || + (head[3] & FT_GZIP_RESERVED) ) + { + error = Gzip_Err_Invalid_File_Format; + goto Exit; + } + + /* skip time, xflags and os code */ + (void)FT_STREAM_SKIP( 6 ); + + /* skip the extra field */ + if ( head[3] & FT_GZIP_EXTRA_FIELD ) + { + FT_UInt len; + + + if ( FT_READ_USHORT_LE( len ) || + FT_STREAM_SKIP( len ) ) + goto Exit; + } + + /* skip original file name */ + if ( head[3] & FT_GZIP_ORIG_NAME ) + for (;;) + { + FT_UInt c; + + + if ( FT_READ_BYTE( c ) ) + goto Exit; + + if ( c == 0 ) + break; + } + + /* skip .gz comment */ + if ( head[3] & FT_GZIP_COMMENT ) + for (;;) + { + FT_UInt c; + + + if ( FT_READ_BYTE( c ) ) + goto Exit; + + if ( c == 0 ) + break; + } + + /* skip CRC */ + if ( head[3] & FT_GZIP_HEAD_CRC ) + if ( FT_STREAM_SKIP( 2 ) ) + goto Exit; + + Exit: + return error; + } + + + static FT_Error + ft_gzip_file_init( FT_GZipFile zip, + FT_Stream stream, + FT_Stream source ) + { + z_stream* zstream = &zip->zstream; + FT_Error error = Gzip_Err_Ok; + + + zip->stream = stream; + zip->source = source; + zip->memory = stream->memory; + + zip->limit = zip->buffer + FT_GZIP_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + /* check and skip .gz header */ + { + stream = source; + + error = ft_gzip_check_header( stream ); + if ( error ) + goto Exit; + + zip->start = FT_STREAM_POS(); + } + + /* initialize zlib -- there is no zlib header in the compressed stream */ + zstream->zalloc = (alloc_func)ft_gzip_alloc; + zstream->zfree = (free_func) ft_gzip_free; + zstream->opaque = stream->memory; + + zstream->avail_in = 0; + zstream->next_in = zip->buffer; + + if ( inflateInit2( zstream, -MAX_WBITS ) != Z_OK || + zstream->next_in == NULL ) + error = Gzip_Err_Invalid_File_Format; + + Exit: + return error; + } + + + static void + ft_gzip_file_done( FT_GZipFile zip ) + { + z_stream* zstream = &zip->zstream; + + + inflateEnd( zstream ); + + /* clear the rest */ + zstream->zalloc = NULL; + zstream->zfree = NULL; + zstream->opaque = NULL; + zstream->next_in = NULL; + zstream->next_out = NULL; + zstream->avail_in = 0; + zstream->avail_out = 0; + + zip->memory = NULL; + zip->source = NULL; + zip->stream = NULL; + } + + + static FT_Error + ft_gzip_file_reset( FT_GZipFile zip ) + { + FT_Stream stream = zip->source; + FT_Error error; + + + if ( !FT_STREAM_SEEK( zip->start ) ) + { + z_stream* zstream = &zip->zstream; + + + inflateReset( zstream ); + + zstream->avail_in = 0; + zstream->next_in = zip->input; + zstream->avail_out = 0; + zstream->next_out = zip->buffer; + + zip->limit = zip->buffer + FT_GZIP_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + } + + return error; + } + + + static FT_Error + ft_gzip_file_fill_input( FT_GZipFile zip ) + { + z_stream* zstream = &zip->zstream; + FT_Stream stream = zip->source; + FT_ULong size; + + + if ( stream->read ) + { + size = stream->read( stream, stream->pos, zip->input, + FT_GZIP_BUFFER_SIZE ); + if ( size == 0 ) + return Gzip_Err_Invalid_Stream_Operation; + } + else + { + size = stream->size - stream->pos; + if ( size > FT_GZIP_BUFFER_SIZE ) + size = FT_GZIP_BUFFER_SIZE; + + if ( size == 0 ) + return Gzip_Err_Invalid_Stream_Operation; + + FT_MEM_COPY( zip->input, stream->base + stream->pos, size ); + } + stream->pos += size; + + zstream->next_in = zip->input; + zstream->avail_in = size; + + return Gzip_Err_Ok; + } + + + static FT_Error + ft_gzip_file_fill_output( FT_GZipFile zip ) + { + z_stream* zstream = &zip->zstream; + FT_Error error = Gzip_Err_Ok; + + + zip->cursor = zip->buffer; + zstream->next_out = zip->cursor; + zstream->avail_out = FT_GZIP_BUFFER_SIZE; + + while ( zstream->avail_out > 0 ) + { + int err; + + + if ( zstream->avail_in == 0 ) + { + error = ft_gzip_file_fill_input( zip ); + if ( error ) + break; + } + + err = inflate( zstream, Z_NO_FLUSH ); + + if ( err == Z_STREAM_END ) + { + zip->limit = zstream->next_out; + if ( zip->limit == zip->cursor ) + error = Gzip_Err_Invalid_Stream_Operation; + break; + } + else if ( err != Z_OK ) + { + error = Gzip_Err_Invalid_Stream_Operation; + break; + } + } + + return error; + } + + + /* fill output buffer; `count' must be <= FT_GZIP_BUFFER_SIZE */ + static FT_Error + ft_gzip_file_skip_output( FT_GZipFile zip, + FT_ULong count ) + { + FT_Error error = Gzip_Err_Ok; + FT_ULong delta; + + + for (;;) + { + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_gzip_file_fill_output( zip ); + if ( error ) + break; + } + + return error; + } + + + static FT_ULong + ft_gzip_file_io( FT_GZipFile zip, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong result = 0; + FT_Error error; + + + /* Reset inflate stream if we're seeking backwards. */ + /* Yes, that is not too efficient, but it saves memory :-) */ + if ( pos < zip->pos ) + { + error = ft_gzip_file_reset( zip ); + if ( error ) + goto Exit; + } + + /* skip unwanted bytes */ + if ( pos > zip->pos ) + { + error = ft_gzip_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) ); + if ( error ) + goto Exit; + } + + if ( count == 0 ) + goto Exit; + + /* now read the data */ + for (;;) + { + FT_ULong delta; + + + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + FT_MEM_COPY( buffer, zip->cursor, delta ); + buffer += delta; + result += delta; + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_gzip_file_fill_output( zip ); + if ( error ) + break; + } + + Exit: + return result; + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** G Z E M B E D D I N G S T R E A M *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + static void + ft_gzip_stream_close( FT_Stream stream ) + { + FT_GZipFile zip = (FT_GZipFile)stream->descriptor.pointer; + FT_Memory memory = stream->memory; + + + if ( zip ) + { + /* finalize gzip file descriptor */ + ft_gzip_file_done( zip ); + + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + } + } + + + static FT_ULong + ft_gzip_stream_io( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_GZipFile zip = (FT_GZipFile)stream->descriptor.pointer; + + + return ft_gzip_file_io( zip, pos, buffer, count ); + } + + + static FT_ULong + ft_gzip_get_uncompressed_size( FT_Stream stream ) + { + FT_Error error; + FT_ULong old_pos; + FT_ULong result = 0; + + + old_pos = stream->pos; + if ( !FT_Stream_Seek( stream, stream->size - 4 ) ) + { + result = FT_Stream_ReadULong( stream, &error ); + if ( error ) + result = 0; + + (void)FT_Stream_Seek( stream, old_pos ); + } + + return result; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenGzip( FT_Stream stream, + FT_Stream source ) + { + FT_Error error; + FT_Memory memory = source->memory; + FT_GZipFile zip = NULL; + + + /* + * check the header right now; this prevents allocating un-necessary + * objects when we don't need them + */ + error = ft_gzip_check_header( source ); + if ( error ) + goto Exit; + + FT_ZERO( stream ); + stream->memory = memory; + + if ( !FT_QNEW( zip ) ) + { + error = ft_gzip_file_init( zip, stream, source ); + if ( error ) + { + FT_FREE( zip ); + goto Exit; + } + + stream->descriptor.pointer = zip; + } + + /* + * We use the following trick to try to dramatically improve the + * performance while dealing with small files. If the original stream + * size is less than a certain threshold, we try to load the whole font + * file into memory. This saves us from using the 32KB buffer needed + * to inflate the file, plus the two 4KB intermediate input/output + * buffers used in the `FT_GZipFile' structure. + */ + { + FT_ULong zip_size = ft_gzip_get_uncompressed_size( source ); + + + if ( zip_size != 0 && zip_size < 40 * 1024 ) + { + FT_Byte* zip_buff = NULL; + + + if ( !FT_ALLOC( zip_buff, zip_size ) ) + { + FT_ULong count; + + + count = ft_gzip_file_io( zip, 0, zip_buff, zip_size ); + if ( count == zip_size ) + { + ft_gzip_file_done( zip ); + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + + stream->size = zip_size; + stream->pos = 0; + stream->base = zip_buff; + stream->read = NULL; + stream->close = ft_gzip_stream_close; + + goto Exit; + } + + ft_gzip_file_io( zip, 0, NULL, 0 ); + FT_FREE( zip_buff ); + } + error = Gzip_Err_Ok; + } + } + + stream->size = 0x7FFFFFFFL; /* don't know the real size! */ + stream->pos = 0; + stream->base = 0; + stream->read = ft_gzip_stream_io; + stream->close = ft_gzip_stream_close; + + Exit: + return error; + } + +#else /* !FT_CONFIG_OPTION_USE_ZLIB */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenGzip( FT_Stream stream, + FT_Stream source ) + { + FT_UNUSED( stream ); + FT_UNUSED( source ); + + return Gzip_Err_Unimplemented_Feature; + } + +#endif /* !FT_CONFIG_OPTION_USE_ZLIB */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/infblock.c b/uppsrc/plugin/FT_fontsys/src/gzip/infblock.c new file mode 100644 index 000000000..d6e2dc297 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/infblock.c @@ -0,0 +1,387 @@ +/* infblock.c -- interpret and process block types to last block + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infblock.h" +#include "inftrees.h" +#include "infcodes.h" +#include "infutil.h" + + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +/* Table for deflate from PKZIP's appnote.txt. */ +local const uInt border[] = { /* Order of the bit length code lengths */ + 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + +/* + Notes beyond the 1.93a appnote.txt: + + 1. Distance pointers never point before the beginning of the output + stream. + 2. Distance pointers can point back across blocks, up to 32k away. + 3. There is an implied maximum of 7 bits for the bit length table and + 15 bits for the actual data. + 4. If only one code exists, then it is encoded using one bit. (Zero + would be more efficient, but perhaps a little confusing.) If two + codes exist, they are coded using one bit each (0 and 1). + 5. There is no way of sending zero distance codes--a dummy must be + sent if there are none. (History: a pre 2.0 version of PKZIP would + store blocks with no distance codes, but this was discovered to be + too harsh a criterion.) Valid only for 1.93a. 2.04c does allow + zero distance codes, which is sent as one code of zero bits in + length. + 6. There are up to 286 literal/length codes. Code 256 represents the + end-of-block. Note however that the static length tree defines + 288 codes just to fill out the Huffman codes. Codes 286 and 287 + cannot be used though, since there is no length base or extra bits + defined for them. Similarily, there are up to 30 distance codes. + However, static trees define 32 codes (all 5 bits) to fill out the + Huffman codes, but the last two had better not show up in the data. + 7. Unzip can check dynamic Huffman blocks for complete code sets. + The exception is that a single code would not be complete (see #4). + 8. The five bits following the block type is really the number of + literal codes sent minus 257. + 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits + (1+6+6). Therefore, to output three times the length, you output + three codes (1+1+1), whereas to output four times the same length, + you only need two codes (1+3). Hmm. + 10. In the tree reconstruction algorithm, Code = Code + Increment + only if BitLength(i) is not zero. (Pretty obvious.) + 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) + 12. Note: length code 284 can represent 227-258, but length code 285 + really is 258. The last length deserves its own, short code + since it gets used a lot in very redundant files. The length + 258 is special since 258 - 3 (the min match length) is 255. + 13. The literal/length and distance code bit lengths are read as a + single stream of lengths. It is possible (and advantageous) for + a repeat code (16, 17, or 18) to go across the boundary between + the two sets of lengths. + */ + + +local void inflate_blocks_reset( /* s, z, c) */ +inflate_blocks_statef *s, +z_streamp z, +uLongf *c ) +{ + if (c != Z_NULL) + *c = s->check; + if (s->mode == BTREE || s->mode == DTREE) + ZFREE(z, s->sub.trees.blens); + if (s->mode == CODES) + inflate_codes_free(s->sub.decode.codes, z); + s->mode = TYPE; + s->bitk = 0; + s->bitb = 0; + s->read = s->write = s->window; + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0); + Tracev((stderr, "inflate: blocks reset\n")); +} + + +local inflate_blocks_statef *inflate_blocks_new( /* z, c, w) */ +z_streamp z, +check_func c, +uInt w ) +{ + inflate_blocks_statef *s; + + if ((s = (inflate_blocks_statef *)ZALLOC + (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) + return s; + if ((s->hufts = + (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) + { + ZFREE(z, s); + return Z_NULL; + } + if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL) + { + ZFREE(z, s->hufts); + ZFREE(z, s); + return Z_NULL; + } + s->end = s->window + w; + s->checkfn = c; + s->mode = TYPE; + Tracev((stderr, "inflate: blocks allocated\n")); + inflate_blocks_reset(s, z, Z_NULL); + return s; +} + + +local int inflate_blocks( /* s, z, r) */ +inflate_blocks_statef *s, +z_streamp z, +int r ) +{ + uInt t; /* temporary storage */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + + /* copy input/output information to locals (UPDATE macro restores) */ + LOAD + + /* process input based on current state */ + while (1) switch (s->mode) + { + case TYPE: + NEEDBITS(3) + t = (uInt)b & 7; + s->last = t & 1; + switch (t >> 1) + { + case 0: /* stored */ + Tracev((stderr, "inflate: stored block%s\n", + s->last ? " (last)" : "")); + DUMPBITS(3) + t = k & 7; /* go to byte boundary */ + DUMPBITS(t) + s->mode = LENS; /* get length of stored block */ + break; + case 1: /* fixed */ + Tracev((stderr, "inflate: fixed codes block%s\n", + s->last ? " (last)" : "")); + { + uInt bl, bd; + inflate_huft *tl, *td; + + inflate_trees_fixed(&bl, &bd, (const inflate_huft**)&tl, + (const inflate_huft**)&td, z); + s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); + if (s->sub.decode.codes == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + } + DUMPBITS(3) + s->mode = CODES; + break; + case 2: /* dynamic */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + s->last ? " (last)" : "")); + DUMPBITS(3) + s->mode = TABLE; + break; + case 3: /* illegal */ + DUMPBITS(3) + s->mode = BAD; + z->msg = (char*)"invalid block type"; + r = Z_DATA_ERROR; + LEAVE + } + break; + case LENS: + NEEDBITS(32) + if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) + { + s->mode = BAD; + z->msg = (char*)"invalid stored block lengths"; + r = Z_DATA_ERROR; + LEAVE + } + s->sub.left = (uInt)b & 0xffff; + b = k = 0; /* dump bits */ + Tracev((stderr, "inflate: stored length %u\n", s->sub.left)); + s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); + break; + case STORED: + if (n == 0) + LEAVE + NEEDOUT + t = s->sub.left; + if (t > n) t = n; + if (t > m) t = m; + zmemcpy(q, p, t); + p += t; n -= t; + q += t; m -= t; + if ((s->sub.left -= t) != 0) + break; + Tracev((stderr, "inflate: stored end, %lu total out\n", + z->total_out + (q >= s->read ? q - s->read : + (s->end - s->read) + (q - s->window)))); + s->mode = s->last ? DRY : TYPE; + break; + case TABLE: + NEEDBITS(14) + s->sub.trees.table = t = (uInt)b & 0x3fff; +#ifndef PKZIP_BUG_WORKAROUND + if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) + { + s->mode = BAD; + z->msg = (char*)"too many length or distance symbols"; + r = Z_DATA_ERROR; + LEAVE + } +#endif + t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); + if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + DUMPBITS(14) + s->sub.trees.index = 0; + Tracev((stderr, "inflate: table sizes ok\n")); + s->mode = BTREE; + case BTREE: + while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) + { + NEEDBITS(3) + s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; + DUMPBITS(3) + } + while (s->sub.trees.index < 19) + s->sub.trees.blens[border[s->sub.trees.index++]] = 0; + s->sub.trees.bb = 7; + t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, + &s->sub.trees.tb, s->hufts, z); + if (t != Z_OK) + { + r = t; + if (r == Z_DATA_ERROR) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + } + LEAVE + } + s->sub.trees.index = 0; + Tracev((stderr, "inflate: bits tree ok\n")); + s->mode = DTREE; + case DTREE: + while (t = s->sub.trees.table, + s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) + { + inflate_huft *h; + uInt i, j, c; + + t = s->sub.trees.bb; + NEEDBITS(t) + h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); + t = h->bits; + c = h->base; + if (c < 16) + { + DUMPBITS(t) + s->sub.trees.blens[s->sub.trees.index++] = c; + } + else /* c == 16..18 */ + { + i = c == 18 ? 7 : c - 14; + j = c == 18 ? 11 : 3; + NEEDBITS(t + i) + DUMPBITS(t) + j += (uInt)b & inflate_mask[i]; + DUMPBITS(i) + i = s->sub.trees.index; + t = s->sub.trees.table; + if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || + (c == 16 && i < 1)) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + z->msg = (char*)"invalid bit length repeat"; + r = Z_DATA_ERROR; + LEAVE + } + c = c == 16 ? s->sub.trees.blens[i - 1] : 0; + do { + s->sub.trees.blens[i++] = c; + } while (--j); + s->sub.trees.index = i; + } + } + s->sub.trees.tb = Z_NULL; + { + uInt bl, bd; + inflate_huft *tl, *td; + inflate_codes_statef *c; + + bl = 9; /* must be <= 9 for lookahead assumptions */ + bd = 6; /* must be <= 9 for lookahead assumptions */ + t = s->sub.trees.table; + t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), + s->sub.trees.blens, &bl, &bd, &tl, &td, + s->hufts, z); + if (t != Z_OK) + { + if (t == (uInt)Z_DATA_ERROR) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + } + r = t; + LEAVE + } + Tracev((stderr, "inflate: trees ok\n")); + if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + s->sub.decode.codes = c; + } + ZFREE(z, s->sub.trees.blens); + s->mode = CODES; + case CODES: + UPDATE + if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) + return inflate_flush(s, z, r); + r = Z_OK; + inflate_codes_free(s->sub.decode.codes, z); + LOAD + Tracev((stderr, "inflate: codes end, %lu total out\n", + z->total_out + (q >= s->read ? q - s->read : + (s->end - s->read) + (q - s->window)))); + if (!s->last) + { + s->mode = TYPE; + break; + } + s->mode = DRY; + case DRY: + FLUSH + if (s->read != s->write) + LEAVE + s->mode = DONE; + case DONE: + r = Z_STREAM_END; + LEAVE + case BAD: + r = Z_DATA_ERROR; + LEAVE + default: + r = Z_STREAM_ERROR; + LEAVE + } +#ifdef NEED_DUMMY_RETURN + return 0; +#endif +} + + +local int inflate_blocks_free( /* s, z) */ +inflate_blocks_statef *s, +z_streamp z ) +{ + inflate_blocks_reset(s, z, Z_NULL); + ZFREE(z, s->window); + ZFREE(z, s->hufts); + ZFREE(z, s); + Tracev((stderr, "inflate: blocks freed\n")); + return Z_OK; +} + + diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/infblock.h b/uppsrc/plugin/FT_fontsys/src/gzip/infblock.h new file mode 100644 index 000000000..c2535a1e4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/infblock.h @@ -0,0 +1,36 @@ +/* infblock.h -- header to use infblock.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFBLOCK_H +#define _INFBLOCK_H + +struct inflate_blocks_state; +typedef struct inflate_blocks_state FAR inflate_blocks_statef; + +local inflate_blocks_statef * inflate_blocks_new OF(( + z_streamp z, + check_func c, /* check function */ + uInt w)); /* window size */ + +local int inflate_blocks OF(( + inflate_blocks_statef *, + z_streamp , + int)); /* initial return code */ + +local void inflate_blocks_reset OF(( + inflate_blocks_statef *, + z_streamp , + uLongf *)); /* check value on output */ + +local int inflate_blocks_free OF(( + inflate_blocks_statef *, + z_streamp)); + +#endif /* _INFBLOCK_H */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/infcodes.c b/uppsrc/plugin/FT_fontsys/src/gzip/infcodes.c new file mode 100644 index 000000000..f7bfd58c4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/infcodes.c @@ -0,0 +1,250 @@ +/* infcodes.c -- process literals and length/distance pairs + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftrees.h" +#include "infblock.h" +#include "infcodes.h" +#include "infutil.h" + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ + START, /* x: set up for LEN */ + LEN, /* i: get length/literal/eob next */ + LENEXT, /* i: getting length extra (have base) */ + DIST, /* i: get distance next */ + DISTEXT, /* i: getting distance extra */ + COPY, /* o: copying bytes in window, waiting for space */ + LIT, /* o: got literal, waiting for output space */ + WASH, /* o: got eob, possibly still output waiting */ + END, /* x: got eob and all data flushed */ + BADCODE} /* x: got error */ +inflate_codes_mode; + +/* inflate codes private state */ +struct inflate_codes_state { + + /* mode */ + inflate_codes_mode mode; /* current inflate_codes mode */ + + /* mode dependent information */ + uInt len; + union { + struct { + inflate_huft *tree; /* pointer into tree */ + uInt need; /* bits needed */ + } code; /* if LEN or DIST, where in tree */ + uInt lit; /* if LIT, literal */ + struct { + uInt get; /* bits to get for extra */ + uInt dist; /* distance back to copy from */ + } copy; /* if EXT or COPY, where and how much */ + } sub; /* submode */ + + /* mode independent information */ + Byte lbits; /* ltree bits decoded per branch */ + Byte dbits; /* dtree bits decoder per branch */ + inflate_huft *ltree; /* literal/length/eob tree */ + inflate_huft *dtree; /* distance tree */ + +}; + + +local inflate_codes_statef *inflate_codes_new( /* bl, bd, tl, td, z) */ +uInt bl, uInt bd, +inflate_huft *tl, +inflate_huft *td, /* need separate declaration for Borland C++ */ +z_streamp z ) +{ + inflate_codes_statef *c; + + if ((c = (inflate_codes_statef *) + ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) + { + c->mode = START; + c->lbits = (Byte)bl; + c->dbits = (Byte)bd; + c->ltree = tl; + c->dtree = td; + Tracev((stderr, "inflate: codes new\n")); + } + return c; +} + + +local int inflate_codes( /* s, z, r) */ +inflate_blocks_statef *s, +z_streamp z, +int r ) +{ + uInt j; /* temporary storage */ + inflate_huft *t; /* temporary pointer */ + uInt e; /* extra bits or operation */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + Bytef *f; /* pointer to copy strings from */ + inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ + + /* copy input/output information to locals (UPDATE macro restores) */ + LOAD + + /* process input and output based on current state */ + while (1) switch (c->mode) + { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ + case START: /* x: set up for LEN */ +#ifndef SLOW + if (m >= 258 && n >= 10) + { + UPDATE + r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); + LOAD + if (r != Z_OK) + { + c->mode = r == Z_STREAM_END ? WASH : BADCODE; + break; + } + } +#endif /* !SLOW */ + c->sub.code.need = c->lbits; + c->sub.code.tree = c->ltree; + c->mode = LEN; + case LEN: /* i: get length/literal/eob next */ + j = c->sub.code.need; + NEEDBITS(j) + t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); + DUMPBITS(t->bits) + e = (uInt)(t->exop); + if (e == 0) /* literal */ + { + c->sub.lit = t->base; + Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", t->base)); + c->mode = LIT; + break; + } + if (e & 16) /* length */ + { + c->sub.copy.get = e & 15; + c->len = t->base; + c->mode = LENEXT; + break; + } + if ((e & 64) == 0) /* next table */ + { + c->sub.code.need = e; + c->sub.code.tree = t + t->base; + break; + } + if (e & 32) /* end of block */ + { + Tracevv((stderr, "inflate: end of block\n")); + c->mode = WASH; + break; + } + c->mode = BADCODE; /* invalid code */ + z->msg = (char*)"invalid literal/length code"; + r = Z_DATA_ERROR; + LEAVE + case LENEXT: /* i: getting length extra (have base) */ + j = c->sub.copy.get; + NEEDBITS(j) + c->len += (uInt)b & inflate_mask[j]; + DUMPBITS(j) + c->sub.code.need = c->dbits; + c->sub.code.tree = c->dtree; + Tracevv((stderr, "inflate: length %u\n", c->len)); + c->mode = DIST; + case DIST: /* i: get distance next */ + j = c->sub.code.need; + NEEDBITS(j) + t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); + DUMPBITS(t->bits) + e = (uInt)(t->exop); + if (e & 16) /* distance */ + { + c->sub.copy.get = e & 15; + c->sub.copy.dist = t->base; + c->mode = DISTEXT; + break; + } + if ((e & 64) == 0) /* next table */ + { + c->sub.code.need = e; + c->sub.code.tree = t + t->base; + break; + } + c->mode = BADCODE; /* invalid code */ + z->msg = (char*)"invalid distance code"; + r = Z_DATA_ERROR; + LEAVE + case DISTEXT: /* i: getting distance extra */ + j = c->sub.copy.get; + NEEDBITS(j) + c->sub.copy.dist += (uInt)b & inflate_mask[j]; + DUMPBITS(j) + Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist)); + c->mode = COPY; + case COPY: /* o: copying bytes in window, waiting for space */ + f = q - c->sub.copy.dist; + while (f < s->window) /* modulo window size-"while" instead */ + f += s->end - s->window; /* of "if" handles invalid distances */ + while (c->len) + { + NEEDOUT + OUTBYTE(*f++) + if (f == s->end) + f = s->window; + c->len--; + } + c->mode = START; + break; + case LIT: /* o: got literal, waiting for output space */ + NEEDOUT + OUTBYTE(c->sub.lit) + c->mode = START; + break; + case WASH: /* o: got eob, possibly more output */ + if (k > 7) /* return unused byte, if any */ + { + Assert(k < 16, "inflate_codes grabbed too many bytes") + k -= 8; + n++; + p--; /* can always return one */ + } + FLUSH + if (s->read != s->write) + LEAVE + c->mode = END; + case END: + r = Z_STREAM_END; + LEAVE + case BADCODE: /* x: got error */ + r = Z_DATA_ERROR; + LEAVE + default: + r = Z_STREAM_ERROR; + LEAVE + } +#ifdef NEED_DUMMY_RETURN + return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ +#endif +} + + +local void inflate_codes_free( /* c, z) */ +inflate_codes_statef *c, +z_streamp z ) +{ + ZFREE(z, c); + Tracev((stderr, "inflate: codes free\n")); +} diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/infcodes.h b/uppsrc/plugin/FT_fontsys/src/gzip/infcodes.h new file mode 100644 index 000000000..154d7f896 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/infcodes.h @@ -0,0 +1,31 @@ +/* infcodes.h -- header to use infcodes.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFCODES_H +#define _INFCODES_H + +struct inflate_codes_state; +typedef struct inflate_codes_state FAR inflate_codes_statef; + +local inflate_codes_statef *inflate_codes_new OF(( + uInt, uInt, + inflate_huft *, inflate_huft *, + z_streamp )); + +local int inflate_codes OF(( + inflate_blocks_statef *, + z_streamp , + int)); + +local void inflate_codes_free OF(( + inflate_codes_statef *, + z_streamp )); + +#endif /* _INFCODES_H */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/inffixed.h b/uppsrc/plugin/FT_fontsys/src/gzip/inffixed.h new file mode 100644 index 000000000..4d4760ea0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/inffixed.h @@ -0,0 +1,151 @@ +/* inffixed.h -- table for decoding fixed codes + * Generated automatically by the maketree.c program + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +local const uInt fixed_bl = 9; +local const uInt fixed_bd = 5; +local const inflate_huft fixed_tl[] = { + {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, + {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192}, + {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160}, + {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224}, + {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144}, + {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208}, + {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176}, + {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240}, + {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, + {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200}, + {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168}, + {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232}, + {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152}, + {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216}, + {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184}, + {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248}, + {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, + {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196}, + {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164}, + {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228}, + {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148}, + {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212}, + {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180}, + {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244}, + {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204}, + {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172}, + {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236}, + {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156}, + {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220}, + {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188}, + {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252}, + {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, + {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194}, + {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162}, + {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226}, + {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146}, + {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210}, + {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178}, + {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242}, + {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, + {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202}, + {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170}, + {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234}, + {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154}, + {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218}, + {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186}, + {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250}, + {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, + {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198}, + {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166}, + {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230}, + {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150}, + {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214}, + {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182}, + {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246}, + {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206}, + {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174}, + {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238}, + {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158}, + {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222}, + {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190}, + {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254}, + {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, + {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193}, + {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161}, + {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225}, + {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145}, + {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209}, + {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177}, + {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241}, + {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, + {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201}, + {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169}, + {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233}, + {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153}, + {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217}, + {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185}, + {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249}, + {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, + {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197}, + {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165}, + {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229}, + {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149}, + {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213}, + {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181}, + {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245}, + {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205}, + {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173}, + {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237}, + {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157}, + {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221}, + {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189}, + {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253}, + {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, + {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195}, + {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163}, + {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227}, + {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147}, + {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211}, + {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179}, + {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243}, + {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, + {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203}, + {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171}, + {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235}, + {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155}, + {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219}, + {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187}, + {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251}, + {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, + {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199}, + {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167}, + {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231}, + {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151}, + {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215}, + {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183}, + {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247}, + {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207}, + {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175}, + {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239}, + {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159}, + {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223}, + {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191}, + {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255} + }; +local const inflate_huft fixed_td[] = { + {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097}, + {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385}, + {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193}, + {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577}, + {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145}, + {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577}, + {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289}, + {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} + }; diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/inflate.c b/uppsrc/plugin/FT_fontsys/src/gzip/inflate.c new file mode 100644 index 000000000..8877fa3eb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/inflate.c @@ -0,0 +1,273 @@ +/* inflate.c -- zlib interface to inflate modules + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infblock.h" + +#define DONE INFLATE_DONE +#define BAD INFLATE_BAD + +typedef enum { + METHOD, /* waiting for method byte */ + FLAG, /* waiting for flag byte */ + DICT4, /* four dictionary check bytes to go */ + DICT3, /* three dictionary check bytes to go */ + DICT2, /* two dictionary check bytes to go */ + DICT1, /* one dictionary check byte to go */ + DICT0, /* waiting for inflateSetDictionary */ + BLOCKS, /* decompressing blocks */ + CHECK4, /* four check bytes to go */ + CHECK3, /* three check bytes to go */ + CHECK2, /* two check bytes to go */ + CHECK1, /* one check byte to go */ + DONE, /* finished check, done */ + BAD} /* got an error--stay here */ +inflate_mode; + +/* inflate private state */ +struct internal_state { + + /* mode */ + inflate_mode mode; /* current inflate mode */ + + /* mode dependent information */ + union { + uInt method; /* if FLAGS, method byte */ + struct { + uLong was; /* computed check value */ + uLong need; /* stream check value */ + } check; /* if CHECK, check values to compare */ + uInt marker; /* if BAD, inflateSync's marker bytes count */ + } sub; /* submode */ + + /* mode independent information */ + int nowrap; /* flag for no wrapper */ + uInt wbits; /* log2(window size) (8..15, defaults to 15) */ + inflate_blocks_statef + *blocks; /* current inflate_blocks state */ + +}; + + +ZEXPORT(int) inflateReset( /* z) */ +z_streamp z ) +{ + if (z == Z_NULL || z->state == Z_NULL) + return Z_STREAM_ERROR; + z->total_in = z->total_out = 0; + z->msg = Z_NULL; + z->state->mode = z->state->nowrap ? BLOCKS : METHOD; + inflate_blocks_reset(z->state->blocks, z, Z_NULL); + Tracev((stderr, "inflate: reset\n")); + return Z_OK; +} + + +ZEXPORT(int) inflateEnd( /* z) */ +z_streamp z ) +{ + if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) + return Z_STREAM_ERROR; + if (z->state->blocks != Z_NULL) + inflate_blocks_free(z->state->blocks, z); + ZFREE(z, z->state); + z->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} + + +ZEXPORT(int) inflateInit2_( /* z, w, version, stream_size) */ +z_streamp z, +int w, +const char *version, +int stream_size ) +{ + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != sizeof(z_stream)) + return Z_VERSION_ERROR; + + /* initialize state */ + if (z == Z_NULL) + return Z_STREAM_ERROR; + z->msg = Z_NULL; + if (z->zalloc == Z_NULL) + { + z->zalloc = zcalloc; + z->opaque = (voidpf)0; + } + if (z->zfree == Z_NULL) z->zfree = zcfree; + if ((z->state = (struct internal_state FAR *) + ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) + return Z_MEM_ERROR; + z->state->blocks = Z_NULL; + + /* handle undocumented nowrap option (no zlib header or check) */ + z->state->nowrap = 0; + if (w < 0) + { + w = - w; + z->state->nowrap = 1; + } + + /* set window size */ + if (w < 8 || w > 15) + { + inflateEnd(z); + return Z_STREAM_ERROR; + } + z->state->wbits = (uInt)w; + + /* create inflate_blocks state */ + if ((z->state->blocks = + inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) + == Z_NULL) + { + inflateEnd(z); + return Z_MEM_ERROR; + } + Tracev((stderr, "inflate: allocated\n")); + + /* reset state */ + inflateReset(z); + return Z_OK; +} + + + +#undef NEEDBYTE +#define NEEDBYTE {if(z->avail_in==0)return r;r=f;} + +#undef NEXTBYTE +#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) + + +ZEXPORT(int) inflate( /* z, f) */ +z_streamp z, +int f ) +{ + int r; + uInt b; + + if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) + return Z_STREAM_ERROR; + f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; + r = Z_BUF_ERROR; + while (1) switch (z->state->mode) + { + case METHOD: + NEEDBYTE + if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED) + { + z->state->mode = BAD; + z->msg = (char*)"unknown compression method"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + if ((z->state->sub.method >> 4) + 8 > z->state->wbits) + { + z->state->mode = BAD; + z->msg = (char*)"invalid window size"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + z->state->mode = FLAG; + case FLAG: + NEEDBYTE + b = NEXTBYTE; + if (((z->state->sub.method << 8) + b) % 31) + { + z->state->mode = BAD; + z->msg = (char*)"incorrect header check"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + Tracev((stderr, "inflate: zlib header ok\n")); + if (!(b & PRESET_DICT)) + { + z->state->mode = BLOCKS; + break; + } + z->state->mode = DICT4; + case DICT4: + NEEDBYTE + z->state->sub.check.need = (uLong)NEXTBYTE << 24; + z->state->mode = DICT3; + case DICT3: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 16; + z->state->mode = DICT2; + case DICT2: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 8; + z->state->mode = DICT1; + case DICT1: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE; + z->adler = z->state->sub.check.need; + z->state->mode = DICT0; + return Z_NEED_DICT; + case DICT0: + z->state->mode = BAD; + z->msg = (char*)"need dictionary"; + z->state->sub.marker = 0; /* can try inflateSync */ + return Z_STREAM_ERROR; + case BLOCKS: + r = inflate_blocks(z->state->blocks, z, r); + if (r == Z_DATA_ERROR) + { + z->state->mode = BAD; + z->state->sub.marker = 0; /* can try inflateSync */ + break; + } + if (r == Z_OK) + r = f; + if (r != Z_STREAM_END) + return r; + r = f; + inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); + if (z->state->nowrap) + { + z->state->mode = DONE; + break; + } + z->state->mode = CHECK4; + case CHECK4: + NEEDBYTE + z->state->sub.check.need = (uLong)NEXTBYTE << 24; + z->state->mode = CHECK3; + case CHECK3: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 16; + z->state->mode = CHECK2; + case CHECK2: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 8; + z->state->mode = CHECK1; + case CHECK1: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE; + + if (z->state->sub.check.was != z->state->sub.check.need) + { + z->state->mode = BAD; + z->msg = (char*)"incorrect data check"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + Tracev((stderr, "inflate: zlib check ok\n")); + z->state->mode = DONE; + case DONE: + return Z_STREAM_END; + case BAD: + return Z_DATA_ERROR; + default: + return Z_STREAM_ERROR; + } +#ifdef NEED_DUMMY_RETURN + return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ +#endif +} + diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/inftrees.c b/uppsrc/plugin/FT_fontsys/src/gzip/inftrees.c new file mode 100644 index 000000000..ef5365216 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/inftrees.c @@ -0,0 +1,468 @@ +/* inftrees.c -- generate Huffman trees for efficient decoding + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftrees.h" + +#if !defined(BUILDFIXED) && !defined(STDC) +# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */ +#endif + + +#if 0 +local const char inflate_copyright[] = + " inflate 1.1.4 Copyright 1995-2002 Mark Adler "; +#endif +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + + +local int huft_build OF(( + uIntf *, /* code lengths in bits */ + uInt, /* number of codes */ + uInt, /* number of "simple" codes */ + const uIntf *, /* list of base values for non-simple codes */ + const uIntf *, /* list of extra bits for non-simple codes */ + inflate_huft * FAR*,/* result: starting table */ + uIntf *, /* maximum lookup bits (returns actual) */ + inflate_huft *, /* space for trees */ + uInt *, /* hufts used in space */ + uIntf * )); /* space for values */ + +/* Tables for deflate from PKZIP's appnote.txt. */ +local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + /* see note #13 above about 258 */ +local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */ +local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577}; +local const uInt cpdext[30] = { /* Extra bits for distance codes */ + 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 12, 13, 13}; + +/* + Huffman code decoding is performed using a multi-level table lookup. + The fastest way to decode is to simply build a lookup table whose + size is determined by the longest code. However, the time it takes + to build this table can also be a factor if the data being decoded + is not very long. The most common codes are necessarily the + shortest codes, so those codes dominate the decoding time, and hence + the speed. The idea is you can have a shorter table that decodes the + shorter, more probable codes, and then point to subsidiary tables for + the longer codes. The time it costs to decode the longer codes is + then traded against the time it takes to make longer tables. + + This results of this trade are in the variables lbits and dbits + below. lbits is the number of bits the first level table for literal/ + length codes can decode in one step, and dbits is the same thing for + the distance codes. Subsequent tables are also less than or equal to + those sizes. These values may be adjusted either when all of the + codes are shorter than that, in which case the longest code length in + bits is used, or when the shortest code is *longer* than the requested + table size, in which case the length of the shortest code in bits is + used. + + There are two different values for the two tables, since they code a + different number of possibilities each. The literal/length table + codes 286 possible values, or in a flat code, a little over eight + bits. The distance table codes 30 possible values, or a little less + than five bits, flat. The optimum values for speed end up being + about one bit more than those, so lbits is 8+1 and dbits is 5+1. + The optimum values may differ though from machine to machine, and + possibly even between compilers. Your mileage may vary. + */ + + +/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */ +#define BMAX 15 /* maximum bit length of any code */ + +local int huft_build( /* b, n, s, d, e, t, m, hp, hn, v) */ +uIntf *b, /* code lengths in bits (all assumed <= BMAX) */ +uInt n, /* number of codes (assumed <= 288) */ +uInt s, /* number of simple-valued codes (0..s-1) */ +const uIntf *d, /* list of base values for non-simple codes */ +const uIntf *e, /* list of extra bits for non-simple codes */ +inflate_huft * FAR *t, /* result: starting table */ +uIntf *m, /* maximum lookup bits, returns actual */ +inflate_huft *hp, /* space for trees */ +uInt *hn, /* hufts used in space */ +uIntf *v /* working area: values in order of bit length */ +/* Given a list of code lengths and a maximum table size, make a set of + tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR + if the given code set is incomplete (the tables are still built in this + case), or Z_DATA_ERROR if the input is invalid. */ +) +{ + + uInt a; /* counter for codes of length k */ + uInt c[BMAX+1]; /* bit length count table */ + uInt f; /* i repeats in table every f entries */ + int g; /* maximum code length */ + int h; /* table level */ + register uInt i; /* counter, current code */ + register uInt j; /* counter */ + register int k; /* number of bits in current code */ + int l; /* bits per table (returned in m) */ + uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */ + register uIntf *p; /* pointer into c[], b[], or v[] */ + inflate_huft *q; /* points to current table */ + struct inflate_huft_s r; /* table entry for structure assignment */ + inflate_huft *u[BMAX]; /* table stack */ + register int w; /* bits before this table == (l * h) */ + uInt x[BMAX+1]; /* bit offsets, then code stack */ + uIntf *xp; /* pointer into x */ + int y; /* number of dummy codes added */ + uInt z; /* number of entries in current table */ + + + /* Make compiler happy */ + r.base = 0; + + /* Generate counts for each bit length */ + p = c; +#define C0 *p++ = 0; +#define C2 C0 C0 C0 C0 +#define C4 C2 C2 C2 C2 + C4 /* clear c[]--assume BMAX+1 is 16 */ + p = b; i = n; + do { + c[*p++]++; /* assume all entries <= BMAX */ + } while (--i); + if (c[0] == n) /* null input--all zero length codes */ + { + *t = (inflate_huft *)Z_NULL; + *m = 0; + return Z_OK; + } + + + /* Find minimum and maximum length, bound *m by those */ + l = *m; + for (j = 1; j <= BMAX; j++) + if (c[j]) + break; + k = j; /* minimum code length */ + if ((uInt)l < j) + l = j; + for (i = BMAX; i; i--) + if (c[i]) + break; + g = i; /* maximum code length */ + if ((uInt)l > i) + l = i; + *m = l; + + + /* Adjust last length count to fill out codes, if needed */ + for (y = 1 << j; j < i; j++, y <<= 1) + if ((y -= c[j]) < 0) + return Z_DATA_ERROR; + if ((y -= c[i]) < 0) + return Z_DATA_ERROR; + c[i] += y; + + + /* Generate starting offsets into the value table for each length */ + x[1] = j = 0; + p = c + 1; xp = x + 2; + while (--i) { /* note that i == g from above */ + *xp++ = (j += *p++); + } + + + /* Make a table of values in order of bit lengths */ + p = b; i = 0; + do { + if ((j = *p++) != 0) + v[x[j]++] = i; + } while (++i < n); + n = x[g]; /* set n to length of v */ + + + /* Generate the Huffman codes and for each, make the table entries */ + x[0] = i = 0; /* first Huffman code is zero */ + p = v; /* grab values in bit order */ + h = -1; /* no tables yet--level -1 */ + w = -l; /* bits decoded == (l * h) */ + u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */ + q = (inflate_huft *)Z_NULL; /* ditto */ + z = 0; /* ditto */ + + /* go through the bit lengths (k already is bits in shortest code) */ + for (; k <= g; k++) + { + a = c[k]; + while (a--) + { + /* here i is the Huffman code of length k bits for value *p */ + /* make tables up to required level */ + while (k > w + l) + { + h++; + w += l; /* previous table always l bits */ + + /* compute minimum size table less than or equal to l bits */ + z = g - w; + z = z > (uInt)l ? (uInt)l : z; /* table size upper limit */ + if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ + { /* too few codes for k-w bit table */ + f -= a + 1; /* deduct codes from patterns left */ + xp = c + k; + if (j < z) + while (++j < z) /* try smaller tables up to z bits */ + { + if ((f <<= 1) <= *++xp) + break; /* enough codes to use up j bits */ + f -= *xp; /* else deduct codes from patterns */ + } + } + z = 1 << j; /* table entries for j-bit table */ + + /* allocate new table */ + if (*hn + z > MANY) /* (note: doesn't matter for fixed) */ + return Z_DATA_ERROR; /* overflow of MANY */ + u[h] = q = hp + *hn; + *hn += z; + + /* connect to last table, if there is one */ + if (h) + { + x[h] = i; /* save pattern for backing up */ + r.bits = (Byte)l; /* bits to dump before this table */ + r.exop = (Byte)j; /* bits in this table */ + j = i >> (w - l); + r.base = (uInt)(q - u[h-1] - j); /* offset to this table */ + u[h-1][j] = r; /* connect to last table */ + } + else + *t = q; /* first table is returned result */ + } + + /* set up table entry in r */ + r.bits = (Byte)(k - w); + if (p >= v + n) + r.exop = 128 + 64; /* out of values--invalid code */ + else if (*p < s) + { + r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */ + r.base = *p++; /* simple code is just the value */ + } + else + { + r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */ + r.base = d[*p++ - s]; + } + + /* fill code-like entries with r */ + f = 1 << (k - w); + for (j = i >> w; j < z; j += f) + q[j] = r; + + /* backwards increment the k-bit code i */ + for (j = 1 << (k - 1); i & j; j >>= 1) + i ^= j; + i ^= j; + + /* backup over finished tables */ + mask = (1 << w) - 1; /* needed on HP, cc -O bug */ + while ((i & mask) != x[h]) + { + h--; /* don't need to update q */ + w -= l; + mask = (1 << w) - 1; + } + } + } + + + /* Return Z_BUF_ERROR if we were given an incomplete table */ + return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK; +} + + +local int inflate_trees_bits( /* c, bb, tb, hp, z) */ +uIntf *c, /* 19 code lengths */ +uIntf *bb, /* bits tree desired/actual depth */ +inflate_huft * FAR *tb, /* bits tree result */ +inflate_huft *hp, /* space for trees */ +z_streamp z /* for messages */ +) +{ + int r; + uInt hn = 0; /* hufts used in space */ + uIntf *v; /* work area for huft_build */ + + if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, + tb, bb, hp, &hn, v); + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed dynamic bit lengths tree"; + else if (r == Z_BUF_ERROR || *bb == 0) + { + z->msg = (char*)"incomplete dynamic bit lengths tree"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; +} + + +local int inflate_trees_dynamic( /* nl, nd, c, bl, bd, tl, td, hp, z) */ +uInt nl, /* number of literal/length codes */ +uInt nd, /* number of distance codes */ +uIntf *c, /* that many (total) code lengths */ +uIntf *bl, /* literal desired/actual bit depth */ +uIntf *bd, /* distance desired/actual bit depth */ +inflate_huft * FAR *tl, /* literal/length tree result */ +inflate_huft * FAR *td, /* distance tree result */ +inflate_huft *hp, /* space for trees */ +z_streamp z /* for messages */ +) +{ + int r; + uInt hn = 0; /* hufts used in space */ + uIntf *v; /* work area for huft_build */ + + /* allocate work area */ + if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + + /* build literal/length tree */ + r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); + if (r != Z_OK || *bl == 0) + { + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed literal/length tree"; + else if (r != Z_MEM_ERROR) + { + z->msg = (char*)"incomplete literal/length tree"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; + } + + /* build distance tree */ + r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); + if (r != Z_OK || (*bd == 0 && nl > 257)) + { + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed distance tree"; + else if (r == Z_BUF_ERROR) { +#if 0 + { +#endif +#ifdef PKZIP_BUG_WORKAROUND + r = Z_OK; + } +#else + z->msg = (char*)"incomplete distance tree"; + r = Z_DATA_ERROR; + } + else if (r != Z_MEM_ERROR) + { + z->msg = (char*)"empty distance tree with lengths"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; +#endif + } + + /* done */ + ZFREE(z, v); + return Z_OK; +} + + +/* build fixed tables only once--keep them here */ +#ifdef BUILDFIXED +local int fixed_built = 0; +#define FIXEDH 544 /* number of hufts used by fixed tables */ +local inflate_huft fixed_mem[FIXEDH]; +local uInt fixed_bl; +local uInt fixed_bd; +local inflate_huft *fixed_tl; +local inflate_huft *fixed_td; +#else +#include "inffixed.h" +#endif + + +local int inflate_trees_fixed( /* bl, bd, tl, td, z) */ +uIntf *bl, /* literal desired/actual bit depth */ +uIntf *bd, /* distance desired/actual bit depth */ +const inflate_huft * FAR *tl, /* literal/length tree result */ +const inflate_huft * FAR *td, /* distance tree result */ +z_streamp z /* for memory allocation */ +) +{ +#ifdef BUILDFIXED + /* build fixed tables if not already */ + if (!fixed_built) + { + int k; /* temporary variable */ + uInt f = 0; /* number of hufts used in fixed_mem */ + uIntf *c; /* length list for huft_build */ + uIntf *v; /* work area for huft_build */ + + /* allocate memory */ + if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + { + ZFREE(z, c); + return Z_MEM_ERROR; + } + + /* literal table */ + for (k = 0; k < 144; k++) + c[k] = 8; + for (; k < 256; k++) + c[k] = 9; + for (; k < 280; k++) + c[k] = 7; + for (; k < 288; k++) + c[k] = 8; + fixed_bl = 9; + huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, + fixed_mem, &f, v); + + /* distance table */ + for (k = 0; k < 30; k++) + c[k] = 5; + fixed_bd = 5; + huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, + fixed_mem, &f, v); + + /* done */ + ZFREE(z, v); + ZFREE(z, c); + fixed_built = 1; + } +#else + FT_UNUSED(z); +#endif + *bl = fixed_bl; + *bd = fixed_bd; + *tl = fixed_tl; + *td = fixed_td; + return Z_OK; +} diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/inftrees.h b/uppsrc/plugin/FT_fontsys/src/gzip/inftrees.h new file mode 100644 index 000000000..07bf2aa0b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/inftrees.h @@ -0,0 +1,63 @@ +/* inftrees.h -- header to use inftrees.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Huffman code lookup table entry--this entry is four bytes for machines + that have 16-bit pointers (e.g. PC's in the small or medium model). */ + +#ifndef _INFTREES_H +#define _INFTREES_H + +typedef struct inflate_huft_s FAR inflate_huft; + +struct inflate_huft_s { + union { + struct { + Byte Exop; /* number of extra bits or operation */ + Byte Bits; /* number of bits in this code or subcode */ + } what; + uInt pad; /* pad structure to a power of 2 (4 bytes for */ + } word; /* 16-bit, 8 bytes for 32-bit int's) */ + uInt base; /* literal, length base, distance base, + or table offset */ +}; + +/* Maximum size of dynamic tree. The maximum found in a long but non- + exhaustive search was 1004 huft structures (850 for length/literals + and 154 for distances, the latter actually the result of an + exhaustive search). The actual maximum is not known, but the + value below is more than safe. */ +#define MANY 1440 + +local int inflate_trees_bits OF(( + uIntf *, /* 19 code lengths */ + uIntf *, /* bits tree desired/actual depth */ + inflate_huft * FAR *, /* bits tree result */ + inflate_huft *, /* space for trees */ + z_streamp)); /* for messages */ + +local int inflate_trees_dynamic OF(( + uInt, /* number of literal/length codes */ + uInt, /* number of distance codes */ + uIntf *, /* that many (total) code lengths */ + uIntf *, /* literal desired/actual bit depth */ + uIntf *, /* distance desired/actual bit depth */ + inflate_huft * FAR *, /* literal/length tree result */ + inflate_huft * FAR *, /* distance tree result */ + inflate_huft *, /* space for trees */ + z_streamp)); /* for messages */ + +local int inflate_trees_fixed OF(( + uIntf *, /* literal desired/actual bit depth */ + uIntf *, /* distance desired/actual bit depth */ + const inflate_huft * FAR *, /* literal/length tree result */ + const inflate_huft * FAR *, /* distance tree result */ + z_streamp)); /* for memory allocation */ + +#endif /* _INFTREES_H */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/infutil.c b/uppsrc/plugin/FT_fontsys/src/gzip/infutil.c new file mode 100644 index 000000000..6087b4064 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/infutil.c @@ -0,0 +1,86 @@ +/* inflate_util.c -- data and routines common to blocks and codes + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infblock.h" +#include "inftrees.h" +#include "infcodes.h" +#include "infutil.h" + + +/* And'ing with mask[n] masks the lower n bits */ +local const uInt inflate_mask[17] = { + 0x0000, + 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, + 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff +}; + + +/* copy as much as possible from the sliding window to the output area */ +local int inflate_flush( /* s, z, r) */ +inflate_blocks_statef *s, +z_streamp z, +int r ) +{ + uInt n; + Bytef *p; + Bytef *q; + + /* local copies of source and destination pointers */ + p = z->next_out; + q = s->read; + + /* compute number of bytes to copy as far as end of window */ + n = (uInt)((q <= s->write ? s->write : s->end) - q); + if (n > z->avail_out) n = z->avail_out; + if (n && r == Z_BUF_ERROR) r = Z_OK; + + /* update counters */ + z->avail_out -= n; + z->total_out += n; + + /* update check information */ + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(s->check, q, n); + + /* copy as far as end of window */ + zmemcpy(p, q, n); + p += n; + q += n; + + /* see if more to copy at beginning of window */ + if (q == s->end) + { + /* wrap pointers */ + q = s->window; + if (s->write == s->end) + s->write = s->window; + + /* compute bytes to copy */ + n = (uInt)(s->write - q); + if (n > z->avail_out) n = z->avail_out; + if (n && r == Z_BUF_ERROR) r = Z_OK; + + /* update counters */ + z->avail_out -= n; + z->total_out += n; + + /* update check information */ + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(s->check, q, n); + + /* copy */ + zmemcpy(p, q, n); + p += n; + q += n; + } + + /* update pointers */ + z->next_out = p; + s->read = q; + + /* done */ + return r; +} diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/infutil.h b/uppsrc/plugin/FT_fontsys/src/gzip/infutil.h new file mode 100644 index 000000000..7174b6dd0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/infutil.h @@ -0,0 +1,98 @@ +/* infutil.h -- types and macros common to blocks and codes + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFUTIL_H +#define _INFUTIL_H + +typedef enum { + TYPE, /* get type bits (3, including end bit) */ + LENS, /* get lengths for stored */ + STORED, /* processing stored block */ + TABLE, /* get table lengths */ + BTREE, /* get bit lengths tree for a dynamic block */ + DTREE, /* get length, distance trees for a dynamic block */ + CODES, /* processing fixed or dynamic block */ + DRY, /* output remaining window bytes */ + DONE, /* finished last block, done */ + BAD} /* got a data error--stuck here */ +inflate_block_mode; + +/* inflate blocks semi-private state */ +struct inflate_blocks_state { + + /* mode */ + inflate_block_mode mode; /* current inflate_block mode */ + + /* mode dependent information */ + union { + uInt left; /* if STORED, bytes left to copy */ + struct { + uInt table; /* table lengths (14 bits) */ + uInt index; /* index into blens (or border) */ + uIntf *blens; /* bit lengths of codes */ + uInt bb; /* bit length tree depth */ + inflate_huft *tb; /* bit length decoding tree */ + } trees; /* if DTREE, decoding info for trees */ + struct { + inflate_codes_statef + *codes; + } decode; /* if CODES, current state */ + } sub; /* submode */ + uInt last; /* true if this block is the last block */ + + /* mode independent information */ + uInt bitk; /* bits in bit buffer */ + uLong bitb; /* bit buffer */ + inflate_huft *hufts; /* single malloc for tree space */ + Bytef *window; /* sliding window */ + Bytef *end; /* one byte after sliding window */ + Bytef *read; /* window read pointer */ + Bytef *write; /* window write pointer */ + check_func checkfn; /* check function */ + uLong check; /* check on output */ + +}; + + +/* defines for inflate input/output */ +/* update pointers and return */ +#define UPDBITS {s->bitb=b;s->bitk=k;} +#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} +#define UPDOUT {s->write=q;} +#define UPDATE {UPDBITS UPDIN UPDOUT} +#define LEAVE {UPDATE return inflate_flush(s,z,r);} +/* get bytes and bits */ +#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} +#define NEEDBYTE {if(n)r=Z_OK;else LEAVE} +#define NEXTBYTE (n--,*p++) +#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}} +#define DUMPBITS(j) {b>>=(j);k-=(j);} +/* output bytes */ +#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q) +#define LOADOUT {q=s->write;m=(uInt)WAVAIL;} +#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} +#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} +#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} +#define OUTBYTE(a) {*q++=(Byte)(a);m--;} +/* load local pointers */ +#define LOAD {LOADIN LOADOUT} + +/* masks for lower bits (size given to avoid silly warnings with Visual C++) */ +#ifndef NO_INFLATE_MASK +local uInt inflate_mask[17]; +#endif + +/* copy as much as possible from the sliding window to the output area */ +local int inflate_flush OF(( + inflate_blocks_statef *, + z_streamp , + int)); + +#endif diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/zconf.h b/uppsrc/plugin/FT_fontsys/src/gzip/zconf.h new file mode 100644 index 000000000..3abf0ba03 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/zconf.h @@ -0,0 +1,284 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef _ZCONF_H +#define _ZCONF_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + */ +#ifdef Z_PREFIX +# define deflateInit_ z_deflateInit_ +# define deflate z_deflate +# define deflateEnd z_deflateEnd +# define inflateInit_ z_inflateInit_ +# define inflate z_inflate +# define inflateEnd z_inflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateSetDictionary z_deflateSetDictionary +# define deflateCopy z_deflateCopy +# define deflateReset z_deflateReset +# define deflateParams z_deflateParams +# define inflateInit2_ z_inflateInit2_ +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateReset z_inflateReset +# define compress z_compress +# define compress2 z_compress2 +# define uncompress z_uncompress +# define adler32 z_adler32 +# define crc32 z_crc32 +# define get_crc_table z_get_crc_table + +# define Byte z_Byte +# define uInt z_uInt +# define uLong z_uLong +# define Bytef z_Bytef +# define charf z_charf +# define intf z_intf +# define uIntf z_uIntf +# define uLongf z_uLongf +# define voidpf z_voidpf +# define voidp z_voidp +#endif + +#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) +# define WIN32 +#endif +#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386) +# ifndef __32BIT__ +# define __32BIT__ +# endif +#endif +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif + +/* WinCE doesn't have errno.h */ +#ifdef _WIN32_WCE +# define NO_ERRNO_H +#endif + + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#if defined(MSDOS) && !defined(__32BIT__) +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC) +# define STDC +#endif +#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) +# ifndef STDC +# define STDC +# endif +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Old Borland C and LCC incorrectly complains about missing returns: */ +#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) +# define NEED_DUMMY_RETURN +#endif + +#if defined(__LCC__) +# define NEED_DUMMY_RETURN +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +#endif +#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) +# ifndef __32BIT__ +# define SMALL_MEDIUM +# define FAR _far +# endif +#endif + +/* Compile with -DZLIB_DLL for Windows DLL support */ +#if defined(ZLIB_DLL) +# if defined(_WINDOWS) || defined(WINDOWS) +# ifdef FAR +# undef FAR +# endif +# include <windows.h> +# define ZEXPORT(x) x WINAPI +# ifdef WIN32 +# define ZEXPORTVA(x) x WINAPIV +# else +# define ZEXPORTVA(x) x FAR _cdecl _export +# endif +# endif +# if defined (__BORLANDC__) +# if (__BORLANDC__ >= 0x0500) && defined (WIN32) +# include <windows.h> +# define ZEXPORT(x) x __declspec(dllexport) WINAPI +# define ZEXPORTRVA(x) x __declspec(dllexport) WINAPIV +# else +# if defined (_Windows) && defined (__DLL__) +# define ZEXPORT(x) x _export +# define ZEXPORTVA(x) x _export +# endif +# endif +# endif +#endif + + +#ifndef ZEXPORT +# define ZEXPORT(x) static x +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA(x) static x +#endif +#ifndef ZEXTERN +# define ZEXTERN(x) static x +#endif +#ifndef ZEXTERNDEF +# define ZEXTERNDEF(x) static x +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(MACOS) && !defined(TARGET_OS_MAC) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H +# include <sys/types.h> /* for off_t */ +# include <unistd.h> /* for SEEK_* and off_t */ +# define z_off_t off_t +#endif +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif +#ifndef z_off_t +# define z_off_t long +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) +# pragma map(deflateInit_,"DEIN") +# pragma map(deflateInit2_,"DEIN2") +# pragma map(deflateEnd,"DEEND") +# pragma map(inflateInit_,"ININ") +# pragma map(inflateInit2_,"ININ2") +# pragma map(inflateEnd,"INEND") +# pragma map(inflateSync,"INSY") +# pragma map(inflateSetDictionary,"INSEDI") +# pragma map(inflate_blocks,"INBL") +# pragma map(inflate_blocks_new,"INBLNE") +# pragma map(inflate_blocks_free,"INBLFR") +# pragma map(inflate_blocks_reset,"INBLRE") +# pragma map(inflate_codes_free,"INCOFR") +# pragma map(inflate_codes,"INCO") +# pragma map(inflate_fast,"INFA") +# pragma map(inflate_flush,"INFLU") +# pragma map(inflate_mask,"INMA") +# pragma map(inflate_set_dictionary,"INSEDI2") +# pragma map(inflate_copyright,"INCOPY") +# pragma map(inflate_trees_bits,"INTRBI") +# pragma map(inflate_trees_dynamic,"INTRDY") +# pragma map(inflate_trees_fixed,"INTRFI") +# pragma map(inflate_trees_free,"INTRFR") +#endif + +#endif /* _ZCONF_H */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/zlib.h b/uppsrc/plugin/FT_fontsys/src/gzip/zlib.h new file mode 100644 index 000000000..50d0d3f14 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/zlib.h @@ -0,0 +1,830 @@ +/* zlib.h -- interface of the 'zlib' general purpose compression library + version 1.1.4, March 11th, 2002 + + Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + + + The data format used by the zlib library is described by RFCs (Request for + Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt + (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). +*/ + +#ifndef _ZLIB_H +#define _ZLIB_H + +#include "zconf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define ZLIB_VERSION "1.1.4" + +/* + The 'zlib' compression library provides in-memory compression and + decompression functions, including integrity checks of the uncompressed + data. This version of the library supports only one compression method + (deflation) but other algorithms will be added later and will have the same + stream interface. + + Compression can be done in a single step if the buffers are large + enough (for example if an input file is mmap'ed), or can be done by + repeated calls of the compression function. In the latter case, the + application must provide more input and/or consume the output + (providing more output space) before each call. + + The library also supports reading and writing files in gzip (.gz) format + with an interface similar to that of stdio. + + The library does not install any signal handler. The decoder checks + the consistency of the compressed data, so the library should never + crash even in case of corrupted input. +*/ + +typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); +typedef void (*free_func) OF((voidpf opaque, voidpf address)); + +struct internal_state; + +typedef struct z_stream_s { + Bytef *next_in; /* next input byte */ + uInt avail_in; /* number of bytes available at next_in */ + uLong total_in; /* total nb of input bytes read so far */ + + Bytef *next_out; /* next output byte should be put there */ + uInt avail_out; /* remaining free space at next_out */ + uLong total_out; /* total nb of bytes output so far */ + + char *msg; /* last error message, NULL if no error */ + struct internal_state FAR *state; /* not visible by applications */ + + alloc_func zalloc; /* used to allocate the internal state */ + free_func zfree; /* used to free the internal state */ + voidpf opaque; /* private data object passed to zalloc and zfree */ + + int data_type; /* best guess about the data type: ascii or binary */ + uLong adler; /* adler32 value of the uncompressed data */ + uLong reserved; /* reserved for future use */ +} z_stream; + +typedef z_stream FAR *z_streamp; + +/* + The application must update next_in and avail_in when avail_in has + dropped to zero. It must update next_out and avail_out when avail_out + has dropped to zero. The application must initialize zalloc, zfree and + opaque before calling the init function. All other fields are set by the + compression library and must not be updated by the application. + + The opaque value provided by the application will be passed as the first + parameter for calls of zalloc and zfree. This can be useful for custom + memory management. The compression library attaches no meaning to the + opaque value. + + zalloc must return Z_NULL if there is not enough memory for the object. + If zlib is used in a multi-threaded application, zalloc and zfree must be + thread safe. + + On 16-bit systems, the functions zalloc and zfree must be able to allocate + exactly 65536 bytes, but will not be required to allocate more than this + if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, + pointers returned by zalloc for objects of exactly 65536 bytes *must* + have their offset normalized to zero. The default allocation function + provided by this library ensures this (see zutil.c). To reduce memory + requirements and avoid any allocation of 64K objects, at the expense of + compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). + + The fields total_in and total_out can be used for statistics or + progress reports. After compression, total_in holds the total size of + the uncompressed data and may be saved for use in the decompressor + (particularly if the decompressor wants to decompress everything in + a single step). +*/ + + /* constants */ + +#define Z_NO_FLUSH 0 +#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ +#define Z_SYNC_FLUSH 2 +#define Z_FULL_FLUSH 3 +#define Z_FINISH 4 +/* Allowed flush values; see deflate() below for details */ + +#define Z_OK 0 +#define Z_STREAM_END 1 +#define Z_NEED_DICT 2 +#define Z_ERRNO (-1) +#define Z_STREAM_ERROR (-2) +#define Z_DATA_ERROR (-3) +#define Z_MEM_ERROR (-4) +#define Z_BUF_ERROR (-5) +#define Z_VERSION_ERROR (-6) +/* Return codes for the compression/decompression functions. Negative + * values are errors, positive values are used for special but normal events. + */ + +#define Z_NO_COMPRESSION 0 +#define Z_BEST_SPEED 1 +#define Z_BEST_COMPRESSION 9 +#define Z_DEFAULT_COMPRESSION (-1) +/* compression levels */ + +#define Z_FILTERED 1 +#define Z_HUFFMAN_ONLY 2 +#define Z_DEFAULT_STRATEGY 0 +/* compression strategy; see deflateInit2() below for details */ + +#define Z_BINARY 0 +#define Z_ASCII 1 +#define Z_UNKNOWN 2 +/* Possible values of the data_type field */ + +#define Z_DEFLATED 8 +/* The deflate compression method (the only one supported in this version) */ + +#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ + + + /* basic functions */ + +/* The application can compare zlibVersion and ZLIB_VERSION for consistency. + If the first character differs, the library code actually used is + not compatible with the zlib.h header file used by the application. + This check is automatically made by deflateInit and inflateInit. + */ + +/* +ZEXTERN(int) deflateInit OF((z_streamp strm, int level)); + + Initializes the internal stream state for compression. The fields + zalloc, zfree and opaque must be initialized before by the caller. + If zalloc and zfree are set to Z_NULL, deflateInit updates them to + use default allocation functions. + + The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: + 1 gives best speed, 9 gives best compression, 0 gives no compression at + all (the input data is simply copied a block at a time). + Z_DEFAULT_COMPRESSION requests a default compromise between speed and + compression (currently equivalent to level 6). + + deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if level is not a valid compression level, + Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible + with the version assumed by the caller (ZLIB_VERSION). + msg is set to null if there is no error message. deflateInit does not + perform any compression: this will be done by deflate(). +*/ + + +/* + deflate compresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may introduce some + output latency (reading input without producing any output) except when + forced to flush. + + The detailed semantics are as follows. deflate performs one or both of the + following actions: + + - Compress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in and avail_in are updated and + processing will resume at this point for the next call of deflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. This action is forced if the parameter flush is non zero. + Forcing flush frequently degrades the compression ratio, so this parameter + should be set only when necessary (in interactive applications). + Some output may be provided even if flush is not set. + + Before the call of deflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming + more output, and updating avail_in or avail_out accordingly; avail_out + should never be zero before the call. The application can consume the + compressed output when it wants, for example when the output buffer is full + (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK + and with zero avail_out, it must be called again after making room in the + output buffer because there might be more output pending. + + If the parameter flush is set to Z_SYNC_FLUSH, all pending output is + flushed to the output buffer and the output is aligned on a byte boundary, so + that the decompressor can get all input data available so far. (In particular + avail_in is zero after the call if enough output space has been provided + before the call.) Flushing may degrade compression for some compression + algorithms and so it should be used only when necessary. + + If flush is set to Z_FULL_FLUSH, all output is flushed as with + Z_SYNC_FLUSH, and the compression state is reset so that decompression can + restart from this point if previous compressed data has been damaged or if + random access is desired. Using Z_FULL_FLUSH too often can seriously degrade + the compression. + + If deflate returns with avail_out == 0, this function must be called again + with the same value of the flush parameter and more output space (updated + avail_out), until the flush is complete (deflate returns with non-zero + avail_out). + + If the parameter flush is set to Z_FINISH, pending input is processed, + pending output is flushed and deflate returns with Z_STREAM_END if there + was enough output space; if deflate returns with Z_OK, this function must be + called again with Z_FINISH and more output space (updated avail_out) but no + more input data, until it returns with Z_STREAM_END or an error. After + deflate has returned Z_STREAM_END, the only possible operations on the + stream are deflateReset or deflateEnd. + + Z_FINISH can be used immediately after deflateInit if all the compression + is to be done in a single step. In this case, avail_out must be at least + 0.1% larger than avail_in plus 12 bytes. If deflate does not return + Z_STREAM_END, then it must be called again as described above. + + deflate() sets strm->adler to the adler32 checksum of all input read + so far (that is, total_in bytes). + + deflate() may update data_type if it can make a good guess about + the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered + binary. This field is only for information purposes and does not affect + the compression algorithm in any manner. + + deflate() returns Z_OK if some progress has been made (more input + processed or more output produced), Z_STREAM_END if all input has been + consumed and all output has been produced (only when flush is set to + Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example + if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible + (for example avail_in or avail_out was zero). +*/ + + +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any + pending output. + + deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the + stream state was inconsistent, Z_DATA_ERROR if the stream was freed + prematurely (some input or output was discarded). In the error case, + msg may be set but then points to a static string (which must not be + deallocated). +*/ + + +/* +ZEXTERN(int) inflateInit OF((z_streamp strm)); + + Initializes the internal stream state for decompression. The fields + next_in, avail_in, zalloc, zfree and opaque must be initialized before by + the caller. If next_in is not Z_NULL and avail_in is large enough (the exact + value depends on the compression method), inflateInit determines the + compression method from the zlib header and allocates all data structures + accordingly; otherwise the allocation will be deferred to the first call of + inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to + use default allocation functions. + + inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_VERSION_ERROR if the zlib library version is incompatible with the + version assumed by the caller. msg is set to null if there is no error + message. inflateInit does not perform any decompression apart from reading + the zlib header if present: this will be done by inflate(). (So next_in and + avail_in may be modified, but next_out and avail_out are unchanged.) +*/ + + +ZEXTERN(int) inflate OF((z_streamp strm, int flush)); +/* + inflate decompresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may some + introduce some output latency (reading input without producing any output) + except when forced to flush. + + The detailed semantics are as follows. inflate performs one or both of the + following actions: + + - Decompress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in is updated and processing + will resume at this point for the next call of inflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. inflate() provides as much output as possible, until there + is no more input data or no more space in the output buffer (see below + about the flush parameter). + + Before the call of inflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming + more output, and updating the next_* and avail_* values accordingly. + The application can consume the uncompressed output when it wants, for + example when the output buffer is full (avail_out == 0), or after each + call of inflate(). If inflate returns Z_OK and with zero avail_out, it + must be called again after making room in the output buffer because there + might be more output pending. + + If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much + output as possible to the output buffer. The flushing behavior of inflate is + not specified for values of the flush parameter other than Z_SYNC_FLUSH + and Z_FINISH, but the current implementation actually flushes as much output + as possible anyway. + + inflate() should normally be called until it returns Z_STREAM_END or an + error. However if all decompression is to be performed in a single step + (a single call of inflate), the parameter flush should be set to + Z_FINISH. In this case all pending input is processed and all pending + output is flushed; avail_out must be large enough to hold all the + uncompressed data. (The size of the uncompressed data may have been saved + by the compressor for this purpose.) The next operation on this stream must + be inflateEnd to deallocate the decompression state. The use of Z_FINISH + is never required, but can be used to inform inflate that a faster routine + may be used for the single inflate() call. + + If a preset dictionary is needed at this point (see inflateSetDictionary + below), inflate sets strm-adler to the adler32 checksum of the + dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise + it sets strm->adler to the adler32 checksum of all output produced + so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or + an error code as described below. At the end of the stream, inflate() + checks that its computed adler32 checksum is equal to that saved by the + compressor and returns Z_STREAM_END only if the checksum is correct. + + inflate() returns Z_OK if some progress has been made (more input processed + or more output produced), Z_STREAM_END if the end of the compressed data has + been reached and all uncompressed output has been produced, Z_NEED_DICT if a + preset dictionary is needed at this point, Z_DATA_ERROR if the input data was + corrupted (input stream not conforming to the zlib format or incorrect + adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent + (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if no progress is possible or if there was not + enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR + case, the application may then call inflateSync to look for a good + compression block. +*/ + + +ZEXTERN(int) inflateEnd OF((z_streamp strm)); +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any + pending output. + + inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state + was inconsistent. In the error case, msg may be set but then points to a + static string (which must not be deallocated). +*/ + + /* Advanced functions */ + +/* + The following functions are needed only in some special applications. +*/ + +/* +ZEXTERN(int) deflateInit2 OF((z_streamp strm, + int level, + int method, + int windowBits, + int memLevel, + int strategy)); + + This is another version of deflateInit with more compression options. The + fields next_in, zalloc, zfree and opaque must be initialized before by + the caller. + + The method parameter is the compression method. It must be Z_DEFLATED in + this version of the library. + + The windowBits parameter is the base two logarithm of the window size + (the size of the history buffer). It should be in the range 8..15 for this + version of the library. Larger values of this parameter result in better + compression at the expense of memory usage. The default value is 15 if + deflateInit is used instead. + + The memLevel parameter specifies how much memory should be allocated + for the internal compression state. memLevel=1 uses minimum memory but + is slow and reduces compression ratio; memLevel=9 uses maximum memory + for optimal speed. The default value is 8. See zconf.h for total memory + usage as a function of windowBits and memLevel. + + The strategy parameter is used to tune the compression algorithm. Use the + value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a + filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no + string match). Filtered data consists mostly of small values with a + somewhat random distribution. In this case, the compression algorithm is + tuned to compress them better. The effect of Z_FILTERED is to force more + Huffman coding and less string matching; it is somewhat intermediate + between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects + the compression ratio but not the correctness of the compressed output even + if it is not set appropriately. + + deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid + method). msg is set to null if there is no error message. deflateInit2 does + not perform any compression: this will be done by deflate(). +*/ + +/* + Initializes the compression dictionary from the given byte sequence + without producing any compressed output. This function must be called + immediately after deflateInit, deflateInit2 or deflateReset, before any + call of deflate. The compressor and decompressor must use exactly the same + dictionary (see inflateSetDictionary). + + The dictionary should consist of strings (byte sequences) that are likely + to be encountered later in the data to be compressed, with the most commonly + used strings preferably put towards the end of the dictionary. Using a + dictionary is most useful when the data to be compressed is short and can be + predicted with good accuracy; the data can then be compressed better than + with the default empty dictionary. + + Depending on the size of the compression data structures selected by + deflateInit or deflateInit2, a part of the dictionary may in effect be + discarded, for example if the dictionary is larger than the window size in + deflate or deflate2. Thus the strings most likely to be useful should be + put at the end of the dictionary, not at the front. + + Upon return of this function, strm->adler is set to the Adler32 value + of the dictionary; the decompressor may later use this value to determine + which dictionary has been used by the compressor. (The Adler32 value + applies to the whole dictionary even if only a subset of the dictionary is + actually used by the compressor.) + + deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a + parameter is invalid (such as NULL dictionary) or the stream state is + inconsistent (for example if deflate has already been called for this stream + or if the compression method is bsort). deflateSetDictionary does not + perform any compression: this will be done by deflate(). +*/ + +/* + Sets the destination stream as a complete copy of the source stream. + + This function can be useful when several compression strategies will be + tried, for example when there are several ways of pre-processing the input + data with a filter. The streams that will be discarded should then be freed + by calling deflateEnd. Note that deflateCopy duplicates the internal + compression state which can be quite large, so this strategy is slow and + can consume lots of memory. + + deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if the source stream state was inconsistent + (such as zalloc being NULL). msg is left unchanged in both source and + destination. +*/ + +/* + This function is equivalent to deflateEnd followed by deflateInit, + but does not free and reallocate all the internal compression state. + The stream will keep the same compression level and any other attributes + that may have been set by deflateInit2. + + deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being NULL). +*/ + +/* + Dynamically update the compression level and compression strategy. The + interpretation of level and strategy is as in deflateInit2. This can be + used to switch between compression and straight copy of the input data, or + to switch to a different kind of input data requiring a different + strategy. If the compression level is changed, the input available so far + is compressed with the old level (and may be flushed); the new level will + take effect only at the next call of deflate(). + + Before the call of deflateParams, the stream state must be set as for + a call of deflate(), since the currently available input may have to + be compressed and flushed. In particular, strm->avail_out must be non-zero. + + deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source + stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR + if strm->avail_out was zero. +*/ + +/* +ZEXTERN(int) inflateInit2 OF((z_streamp strm, + int windowBits)); + + This is another version of inflateInit with an extra parameter. The + fields next_in, avail_in, zalloc, zfree and opaque must be initialized + before by the caller. + + The windowBits parameter is the base two logarithm of the maximum window + size (the size of the history buffer). It should be in the range 8..15 for + this version of the library. The default value is 15 if inflateInit is used + instead. If a compressed stream with a larger window size is given as + input, inflate() will return with the error code Z_DATA_ERROR instead of + trying to allocate a larger window. + + inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative + memLevel). msg is set to null if there is no error message. inflateInit2 + does not perform any decompression apart from reading the zlib header if + present: this will be done by inflate(). (So next_in and avail_in may be + modified, but next_out and avail_out are unchanged.) +*/ + +/* + Initializes the decompression dictionary from the given uncompressed byte + sequence. This function must be called immediately after a call of inflate + if this call returned Z_NEED_DICT. The dictionary chosen by the compressor + can be determined from the Adler32 value returned by this call of + inflate. The compressor and decompressor must use exactly the same + dictionary (see deflateSetDictionary). + + inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a + parameter is invalid (such as NULL dictionary) or the stream state is + inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the + expected one (incorrect Adler32 value). inflateSetDictionary does not + perform any decompression: this will be done by subsequent calls of + inflate(). +*/ + +/* + Skips invalid compressed data until a full flush point (see above the + description of deflate with Z_FULL_FLUSH) can be found, or until all + available input is skipped. No output is provided. + + inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR + if no more input was provided, Z_DATA_ERROR if no flush point has been found, + or Z_STREAM_ERROR if the stream structure was inconsistent. In the success + case, the application may save the current current value of total_in which + indicates where valid compressed data was found. In the error case, the + application may repeatedly call inflateSync, providing more input each time, + until success or end of the input data. +*/ + +ZEXTERN(int) inflateReset OF((z_streamp strm)); +/* + This function is equivalent to inflateEnd followed by inflateInit, + but does not free and reallocate all the internal decompression state. + The stream will keep attributes that may have been set by inflateInit2. + + inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being NULL). +*/ + + + /* utility functions */ + +/* + The following utility functions are implemented on top of the + basic stream-oriented functions. To simplify the interface, some + default options are assumed (compression level and memory usage, + standard memory allocation functions). The source code of these + utility functions can easily be modified if you need special options. +*/ + +/* + Compresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be at least 0.1% larger than + sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the + compressed buffer. + This function can be used to compress a whole file at once if the + input file is mmap'ed. + compress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer. +*/ + +/* + Compresses the source buffer into the destination buffer. The level + parameter has the same meaning as in deflateInit. sourceLen is the byte + length of the source buffer. Upon entry, destLen is the total size of the + destination buffer, which must be at least 0.1% larger than sourceLen plus + 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. + + compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_BUF_ERROR if there was not enough room in the output buffer, + Z_STREAM_ERROR if the level parameter is invalid. +*/ + +/* + Decompresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be large enough to hold the + entire uncompressed data. (The size of the uncompressed data must have + been saved previously by the compressor and transmitted to the decompressor + by some mechanism outside the scope of this compression library.) + Upon exit, destLen is the actual size of the compressed buffer. + This function can be used to decompress a whole file at once if the + input file is mmap'ed. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer, or Z_DATA_ERROR if the input data was corrupted. +*/ + + +/* + Opens a gzip (.gz) file for reading or writing. The mode parameter + is as in fopen ("rb" or "wb") but can also include a compression level + ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for + Huffman only compression as in "wb1h". (See the description + of deflateInit2 for more information about the strategy parameter.) + + gzopen can be used to read a file which is not in gzip format; in this + case gzread will directly read from the file without decompression. + + gzopen returns NULL if the file could not be opened or if there was + insufficient memory to allocate the (de)compression state; errno + can be checked to distinguish the two cases (if errno is zero, the + zlib error is Z_MEM_ERROR). */ + +/* + gzdopen() associates a gzFile with the file descriptor fd. File + descriptors are obtained from calls like open, dup, creat, pipe or + fileno (in the file has been previously opened with fopen). + The mode parameter is as in gzopen. + The next call of gzclose on the returned gzFile will also close the + file descriptor fd, just like fclose(fdopen(fd), mode) closes the file + descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). + gzdopen returns NULL if there was insufficient memory to allocate + the (de)compression state. +*/ + +/* + Dynamically update the compression level or strategy. See the description + of deflateInit2 for the meaning of these parameters. + gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not + opened for writing. +*/ + +/* + Reads the given number of uncompressed bytes from the compressed file. + If the input file was not in gzip format, gzread copies the given number + of bytes into the buffer. + gzread returns the number of uncompressed bytes actually read (0 for + end of file, -1 for error). */ + +/* + Writes the given number of uncompressed bytes into the compressed file. + gzwrite returns the number of uncompressed bytes actually written + (0 in case of error). +*/ + +/* + Converts, formats, and writes the args to the compressed file under + control of the format string, as in fprintf. gzprintf returns the number of + uncompressed bytes actually written (0 in case of error). +*/ + +/* + Writes the given null-terminated string to the compressed file, excluding + the terminating null character. + gzputs returns the number of characters written, or -1 in case of error. +*/ + +/* + Reads bytes from the compressed file until len-1 characters are read, or + a newline character is read and transferred to buf, or an end-of-file + condition is encountered. The string is then terminated with a null + character. + gzgets returns buf, or Z_NULL in case of error. +*/ + +/* + Writes c, converted to an unsigned char, into the compressed file. + gzputc returns the value that was written, or -1 in case of error. +*/ + +/* + Reads one byte from the compressed file. gzgetc returns this byte + or -1 in case of end of file or error. +*/ + +/* + Flushes all pending output into the compressed file. The parameter + flush is as in the deflate() function. The return value is the zlib + error number (see function gzerror below). gzflush returns Z_OK if + the flush parameter is Z_FINISH and all output could be flushed. + gzflush should be called only when strictly necessary because it can + degrade compression. +*/ + +/* + Sets the starting position for the next gzread or gzwrite on the + given compressed file. The offset represents a number of bytes in the + uncompressed data stream. The whence parameter is defined as in lseek(2); + the value SEEK_END is not supported. + If the file is opened for reading, this function is emulated but can be + extremely slow. If the file is opened for writing, only forward seeks are + supported; gzseek then compresses a sequence of zeroes up to the new + starting position. + + gzseek returns the resulting offset location as measured in bytes from + the beginning of the uncompressed stream, or -1 in case of error, in + particular if the file is opened for writing and the new starting position + would be before the current position. +*/ + +/* + Rewinds the given file. This function is supported only for reading. + + gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) +*/ + +/* + Returns the starting position for the next gzread or gzwrite on the + given compressed file. This position represents a number of bytes in the + uncompressed data stream. + + gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) +*/ + +/* + Returns 1 when EOF has previously been detected reading the given + input stream, otherwise zero. +*/ + +/* + Flushes all pending output if necessary, closes the compressed file + and deallocates all the (de)compression state. The return value is the zlib + error number (see function gzerror below). +*/ + +/* + Returns the error message for the last error which occurred on the + given compressed file. errnum is set to zlib error number. If an + error occurred in the file system and not in the compression library, + errnum is set to Z_ERRNO and the application may consult errno + to get the exact error code. +*/ + + /* checksum functions */ + +/* + These functions are not related to compression but are exported + anyway because they might be useful in applications using the + compression library. +*/ + +ZEXTERN(uLong) adler32 OF((uLong adler, const Bytef *buf, uInt len)); + +/* + Update a running Adler-32 checksum with the bytes buf[0..len-1] and + return the updated checksum. If buf is NULL, this function returns + the required initial value for the checksum. + An Adler-32 checksum is almost as reliable as a CRC32 but can be computed + much faster. Usage example: + + uLong adler = adler32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + adler = adler32(adler, buffer, length); + } + if (adler != original_adler) error(); +*/ + +/* + Update a running crc with the bytes buf[0..len-1] and return the updated + crc. If buf is NULL, this function returns the required initial value + for the crc. Pre- and post-conditioning (one's complement) is performed + within this function so it shouldn't be done by the application. + Usage example: + + uLong crc = crc32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + crc = crc32(crc, buffer, length); + } + if (crc != original_crc) error(); +*/ + + + /* various hacks, don't look :) */ + +/* deflateInit and inflateInit are macros to allow checking the zlib version + * and the compiler's view of z_stream: + */ +ZEXTERN(int) inflateInit2_ OF((z_streamp strm, int windowBits, + const char *version, int stream_size)); +#define deflateInit(strm, level) \ + deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit(strm) \ + inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) +#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ + deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ + (strategy), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit2(strm, windowBits) \ + inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) + + +#ifdef __cplusplus +} +#endif + +#endif /* _ZLIB_H */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/zutil.c b/uppsrc/plugin/FT_fontsys/src/gzip/zutil.c new file mode 100644 index 000000000..7ad0c1f81 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/zutil.c @@ -0,0 +1,181 @@ +/* zutil.c -- target dependent utility functions for the compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zutil.h" + +#ifndef STDC +extern void exit OF((int)); +#endif + + +#ifndef HAVE_MEMCPY + +void zmemcpy(dest, source, len) + Bytef* dest; + const Bytef* source; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = *source++; /* ??? to be unrolled */ + } while (--len != 0); +} + +int zmemcmp(s1, s2, len) + const Bytef* s1; + const Bytef* s2; + uInt len; +{ + uInt j; + + for (j = 0; j < len; j++) { + if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; + } + return 0; +} + +void zmemzero(dest, len) + Bytef* dest; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = 0; /* ??? to be unrolled */ + } while (--len != 0); +} +#endif + +#if defined( MSDOS ) && defined( __TURBOC__ ) && !defined( MY_ZCALLOC ) +#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__) +/* Small and medium model in Turbo C are for now limited to near allocation + * with reduced MAX_WBITS and MAX_MEM_LEVEL + */ +# define MY_ZCALLOC + +/* Turbo C malloc() does not allow dynamic allocation of 64K bytes + * and farmalloc(64K) returns a pointer with an offset of 8, so we + * must fix the pointer. Warning: the pointer must be put back to its + * original form in order to free it, use zcfree(). + */ + +#define MAX_PTR 10 +/* 10*64K = 640K */ + +local int next_ptr = 0; + +typedef struct ptr_table_s { + voidpf org_ptr; + voidpf new_ptr; +} ptr_table; + +local ptr_table table[MAX_PTR]; +/* This table is used to remember the original form of pointers + * to large buffers (64K). Such pointers are normalized with a zero offset. + * Since MSDOS is not a preemptive multitasking OS, this table is not + * protected from concurrent access. This hack doesn't work anyway on + * a protected system like OS/2. Use Microsoft C instead. + */ + +voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + voidpf buf = opaque; /* just to make some compilers happy */ + ulg bsize = (ulg)items*size; + + /* If we allocate less than 65520 bytes, we assume that farmalloc + * will return a usable pointer which doesn't have to be normalized. + */ + if (bsize < 65520L) { + buf = farmalloc(bsize); + if (*(ush*)&buf != 0) return buf; + } else { + buf = farmalloc(bsize + 16L); + } + if (buf == NULL || next_ptr >= MAX_PTR) return NULL; + table[next_ptr].org_ptr = buf; + + /* Normalize the pointer to seg:0 */ + *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; + *(ush*)&buf = 0; + table[next_ptr++].new_ptr = buf; + return buf; +} + +void zcfree (voidpf opaque, voidpf ptr) +{ + int n; + if (*(ush*)&ptr != 0) { /* object < 64K */ + farfree(ptr); + return; + } + /* Find the original pointer */ + for (n = 0; n < next_ptr; n++) { + if (ptr != table[n].new_ptr) continue; + + farfree(table[n].org_ptr); + while (++n < next_ptr) { + table[n-1] = table[n]; + } + next_ptr--; + return; + } + ptr = opaque; /* just to make some compilers happy */ + Assert(0, "zcfree: ptr not found"); +} +#endif +#endif /* MSDOS && __TURBOC__ */ + + +#if defined(M_I86) && !defined(__32BIT__) && !defined( MY_ZCALLOC ) +/* Microsoft C in 16-bit mode */ + +# define MY_ZCALLOC + +#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) +# define _halloc halloc +# define _hfree hfree +#endif + +voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + return _halloc((long)items, size); +} + +void zcfree (voidpf opaque, voidpf ptr) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + _hfree(ptr); +} + +#endif /* MSC */ + + +#ifndef MY_ZCALLOC /* Any system without a special alloc function */ + +#ifndef STDC +extern voidp ft_scalloc OF((uInt items, uInt size)); +extern void ft_sfree OF((voidpf ptr)); +#endif + +voidpf zcalloc (opaque, items, size) + voidpf opaque; + unsigned items; + unsigned size; +{ + if (opaque) items += size - size; /* make compiler happy */ + return (voidpf)ft_scalloc(items, size); +} + +void zcfree (opaque, ptr) + voidpf opaque; + voidpf ptr; +{ + ft_sfree(ptr); + if (opaque) return; /* make compiler happy */ +} + +#endif /* MY_ZCALLOC */ diff --git a/uppsrc/plugin/FT_fontsys/src/gzip/zutil.h b/uppsrc/plugin/FT_fontsys/src/gzip/zutil.h new file mode 100644 index 000000000..c9688cd9c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/gzip/zutil.h @@ -0,0 +1,215 @@ +/* zutil.h -- internal interface and configuration of the compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* @(#) $Id$ */ + +#ifndef _Z_UTIL_H +#define _Z_UTIL_H + +#include "zlib.h" + +#ifdef STDC +# include <stddef.h> +# include <string.h> +# include <stdlib.h> +#endif +#ifdef NO_ERRNO_H + extern int errno; +#else +# include <errno.h> +#endif + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +typedef unsigned char uch; +typedef uch FAR uchf; +typedef unsigned short ush; +typedef ush FAR ushf; +typedef unsigned long ulg; + + +#define ERR_RETURN(strm,err) \ + return (strm->msg = (char*)ERR_MSG(err), (err)) +/* To be used only when the state is known to be valid */ + + /* common constants */ + +#ifndef DEF_WBITS +# define DEF_WBITS MAX_WBITS +#endif +/* default windowBits for decompression. MAX_WBITS is for compression only */ + +#if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +#else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +#endif +/* default memLevel */ + +#define STORED_BLOCK 0 +#define STATIC_TREES 1 +#define DYN_TREES 2 +/* The three kinds of block type */ + +#define MIN_MATCH 3 +#define MAX_MATCH 258 +/* The minimum and maximum match lengths */ + +#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ + + /* target dependencies */ + +#ifdef MSDOS +# define OS_CODE 0x00 +# if defined(__TURBOC__) || defined(__BORLANDC__) +# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) + /* Allow compilation with ANSI keywords only enabled */ + void _Cdecl farfree( void *block ); + void *_Cdecl farmalloc( unsigned long nbytes ); +# else +# include <alloc.h> +# endif +# else /* MSC or DJGPP */ +# endif +#endif + +#ifdef OS2 +# define OS_CODE 0x06 +#endif + +#ifdef WIN32 /* Window 95 & Windows NT */ +# define OS_CODE 0x0b +#endif + +#if defined(VAXC) || defined(VMS) +# define OS_CODE 0x02 +# define F_OPEN(name, mode) \ + ft_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") +#endif + +#ifdef AMIGA +# define OS_CODE 0x01 +#endif + +#if defined(ATARI) || defined(atarist) +# define OS_CODE 0x05 +#endif + +#if defined(MACOS) || defined(TARGET_OS_MAC) +# define OS_CODE 0x07 +# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os +# include <unix.h> /* for fdopen */ +# else +# ifndef fdopen +# define fdopen(fd,mode) NULL /* No fdopen() */ +# endif +# endif +#endif + +#ifdef __50SERIES /* Prime/PRIMOS */ +# define OS_CODE 0x0F +#endif + +#ifdef TOPS20 +# define OS_CODE 0x0a +#endif + +#if defined(_BEOS_) || defined(RISCOS) +# define fdopen(fd,mode) NULL /* No fdopen() */ +#endif + +#if (defined(_MSC_VER) && (_MSC_VER > 600)) +# define fdopen(fd,type) _fdopen(fd,type) +#endif + + + /* Common defaults */ + +#ifndef OS_CODE +# define OS_CODE 0x03 /* assume Unix */ +#endif + +#ifndef F_OPEN +# define F_OPEN(name, mode) ft_fopen((name), (mode)) +#endif + + /* functions */ + +#ifdef HAVE_STRERROR + extern char *strerror OF((int)); +# define zstrerror(errnum) strerror(errnum) +#else +# define zstrerror(errnum) "" +#endif + +#if defined(pyr) +# define NO_MEMCPY +#endif +#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) + /* Use our own functions for small and medium model with MSC <= 5.0. + * You may have to use the same strategy for Borland C (untested). + * The __SC__ check is for Symantec. + */ +# define NO_MEMCPY +#endif +#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) +# define HAVE_MEMCPY +#endif +#ifdef HAVE_MEMCPY +# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ +# define zmemcpy _fmemcpy +# define zmemcmp _fmemcmp +# define zmemzero(dest, len) _fmemset(dest, 0, len) +# else +# define zmemcpy ft_memcpy +# define zmemcmp ft_memcmp +# define zmemzero(dest, len) ft_memset(dest, 0, len) +# endif +#else + extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); + extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); + extern void zmemzero OF((Bytef* dest, uInt len)); +#endif + +/* Diagnostic functions */ +#ifdef DEBUG +# include <stdio.h> + extern int z_verbose; + extern void z_error OF((char *m)); +# define Assert(cond,msg) {if(!(cond)) z_error(msg);} +# define Trace(x) {if (z_verbose>=0) fprintf x ;} +# define Tracev(x) {if (z_verbose>0) fprintf x ;} +# define Tracevv(x) {if (z_verbose>1) fprintf x ;} +# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} +# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} +#else +# define Assert(cond,msg) +# define Trace(x) +# define Tracev(x) +# define Tracevv(x) +# define Tracec(c,x) +# define Tracecv(c,x) +#endif + + +typedef uLong (*check_func) OF((uLong check, const Bytef *buf, + uInt len)); +local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); +local void zcfree OF((voidpf opaque, voidpf ptr)); + +#define ZALLOC(strm, items, size) \ + (*((strm)->zalloc))((strm)->opaque, (items), (size)) +#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) +#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} + +#endif /* _Z_UTIL_H */ diff --git a/uppsrc/plugin/FT_fontsys/src/lzw/ftlzw.c b/uppsrc/plugin/FT_fontsys/src/lzw/ftlzw.c new file mode 100644 index 000000000..cab753232 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/lzw/ftlzw.c @@ -0,0 +1,412 @@ +/***************************************************************************/ +/* */ +/* ftlzw.c */ +/* */ +/* FreeType support for .Z compressed files. */ +/* */ +/* This optional component relies on NetBSD's zopen(). It should mainly */ +/* be used to parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2004, 2005, 2006, 2009, 2010 by */ +/* Albert Chin-A-Young. */ +/* */ +/* Based on code in src/gzip/ftgzip.c, Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H +#include FT_LZW_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX LZW_Err_ +#define FT_ERR_BASE FT_Mod_Err_LZW + +#include FT_ERRORS_H + + +#ifdef FT_CONFIG_OPTION_USE_LZW + +#ifdef FT_CONFIG_OPTION_PIC +#error "lzw code does not support PIC yet" +#endif + +#include "ftzopen.h" + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** M E M O R Y M A N A G E M E N T *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** F I L E D E S C R I P T O R *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +#define FT_LZW_BUFFER_SIZE 4096 + + typedef struct FT_LZWFileRec_ + { + FT_Stream source; /* parent/source stream */ + FT_Stream stream; /* embedding stream */ + FT_Memory memory; /* memory allocator */ + FT_LzwStateRec lzw; /* lzw decompressor state */ + + FT_Byte buffer[FT_LZW_BUFFER_SIZE]; /* output buffer */ + FT_ULong pos; /* position in output */ + FT_Byte* cursor; + FT_Byte* limit; + + } FT_LZWFileRec, *FT_LZWFile; + + + /* check and skip .Z header */ + static FT_Error + ft_lzw_check_header( FT_Stream stream ) + { + FT_Error error; + FT_Byte head[2]; + + + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ( head, 2 ) ) + goto Exit; + + /* head[0] && head[1] are the magic numbers */ + if ( head[0] != 0x1f || + head[1] != 0x9d ) + error = LZW_Err_Invalid_File_Format; + + Exit: + return error; + } + + + static FT_Error + ft_lzw_file_init( FT_LZWFile zip, + FT_Stream stream, + FT_Stream source ) + { + FT_LzwState lzw = &zip->lzw; + FT_Error error = LZW_Err_Ok; + + + zip->stream = stream; + zip->source = source; + zip->memory = stream->memory; + + zip->limit = zip->buffer + FT_LZW_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + /* check and skip .Z header */ + error = ft_lzw_check_header( source ); + if ( error ) + goto Exit; + + /* initialize internal lzw variable */ + ft_lzwstate_init( lzw, source ); + + Exit: + return error; + } + + + static void + ft_lzw_file_done( FT_LZWFile zip ) + { + /* clear the rest */ + ft_lzwstate_done( &zip->lzw ); + + zip->memory = NULL; + zip->source = NULL; + zip->stream = NULL; + } + + + static FT_Error + ft_lzw_file_reset( FT_LZWFile zip ) + { + FT_Stream stream = zip->source; + FT_Error error; + + + if ( !FT_STREAM_SEEK( 0 ) ) + { + ft_lzwstate_reset( &zip->lzw ); + + zip->limit = zip->buffer + FT_LZW_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + } + + return error; + } + + + static FT_Error + ft_lzw_file_fill_output( FT_LZWFile zip ) + { + FT_LzwState lzw = &zip->lzw; + FT_ULong count; + FT_Error error = LZW_Err_Ok; + + + zip->cursor = zip->buffer; + + count = ft_lzwstate_io( lzw, zip->buffer, FT_LZW_BUFFER_SIZE ); + + zip->limit = zip->cursor + count; + + if ( count == 0 ) + error = LZW_Err_Invalid_Stream_Operation; + + return error; + } + + + /* fill output buffer; `count' must be <= FT_LZW_BUFFER_SIZE */ + static FT_Error + ft_lzw_file_skip_output( FT_LZWFile zip, + FT_ULong count ) + { + FT_Error error = LZW_Err_Ok; + + + /* first, we skip what we can from the output buffer */ + { + FT_ULong delta = (FT_ULong)( zip->limit - zip->cursor ); + + + if ( delta >= count ) + delta = count; + + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + } + + /* next, we skip as many bytes remaining as possible */ + while ( count > 0 ) + { + FT_ULong delta = FT_LZW_BUFFER_SIZE; + FT_ULong numread; + + + if ( delta > count ) + delta = count; + + numread = ft_lzwstate_io( &zip->lzw, NULL, delta ); + if ( numread < delta ) + { + /* not enough bytes */ + error = LZW_Err_Invalid_Stream_Operation; + break; + } + + zip->pos += delta; + count -= delta; + } + + return error; + } + + + static FT_ULong + ft_lzw_file_io( FT_LZWFile zip, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong result = 0; + FT_Error error; + + + /* seeking backwards. */ + if ( pos < zip->pos ) + { + /* If the new position is within the output buffer, simply */ + /* decrement pointers, otherwise we reset the stream completely! */ + if ( ( zip->pos - pos ) <= (FT_ULong)( zip->cursor - zip->buffer ) ) + { + zip->cursor -= zip->pos - pos; + zip->pos = pos; + } + else + { + error = ft_lzw_file_reset( zip ); + if ( error ) + goto Exit; + } + } + + /* skip unwanted bytes */ + if ( pos > zip->pos ) + { + error = ft_lzw_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) ); + if ( error ) + goto Exit; + } + + if ( count == 0 ) + goto Exit; + + /* now read the data */ + for (;;) + { + FT_ULong delta; + + + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + FT_MEM_COPY( buffer + result, zip->cursor, delta ); + result += delta; + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_lzw_file_fill_output( zip ); + if ( error ) + break; + } + + Exit: + return result; + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** L Z W E M B E D D I N G S T R E A M *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + static void + ft_lzw_stream_close( FT_Stream stream ) + { + FT_LZWFile zip = (FT_LZWFile)stream->descriptor.pointer; + FT_Memory memory = stream->memory; + + + if ( zip ) + { + /* finalize lzw file descriptor */ + ft_lzw_file_done( zip ); + + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + } + } + + + static FT_ULong + ft_lzw_stream_io( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_LZWFile zip = (FT_LZWFile)stream->descriptor.pointer; + + + return ft_lzw_file_io( zip, pos, buffer, count ); + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenLZW( FT_Stream stream, + FT_Stream source ) + { + FT_Error error; + FT_Memory memory = source->memory; + FT_LZWFile zip = NULL; + + + /* + * Check the header right now; this prevents allocation of a huge + * LZWFile object (400 KByte of heap memory) if not necessary. + * + * Did I mention that you should never use .Z compressed font + * files? + */ + error = ft_lzw_check_header( source ); + if ( error ) + goto Exit; + + FT_ZERO( stream ); + stream->memory = memory; + + if ( !FT_NEW( zip ) ) + { + error = ft_lzw_file_init( zip, stream, source ); + if ( error ) + { + FT_FREE( zip ); + goto Exit; + } + + stream->descriptor.pointer = zip; + } + + stream->size = 0x7FFFFFFFL; /* don't know the real size! */ + stream->pos = 0; + stream->base = 0; + stream->read = ft_lzw_stream_io; + stream->close = ft_lzw_stream_close; + + Exit: + return error; + } + + +#include "ftzopen.c" + + +#else /* !FT_CONFIG_OPTION_USE_LZW */ + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenLZW( FT_Stream stream, + FT_Stream source ) + { + FT_UNUSED( stream ); + FT_UNUSED( source ); + + return LZW_Err_Unimplemented_Feature; + } + + +#endif /* !FT_CONFIG_OPTION_USE_LZW */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.c b/uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.c new file mode 100644 index 000000000..8bc65c8f5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.c @@ -0,0 +1,401 @@ +/***************************************************************************/ +/* */ +/* ftzopen.c */ +/* */ +/* FreeType support for .Z compressed files. */ +/* */ +/* This optional component relies on NetBSD's zopen(). It should mainly */ +/* be used to parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2005, 2006, 2007, 2009 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include "ftzopen.h" +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H + + + static int + ft_lzwstate_refill( FT_LzwState state ) + { + FT_ULong count; + + + if ( state->in_eof ) + return -1; + + count = FT_Stream_TryRead( state->source, + state->buf_tab, + state->num_bits ); /* WHY? */ + + state->buf_size = (FT_UInt)count; + state->buf_total += count; + state->in_eof = FT_BOOL( count < state->num_bits ); + state->buf_offset = 0; + state->buf_size = ( state->buf_size << 3 ) - ( state->num_bits - 1 ); + + if ( count == 0 ) /* end of file */ + return -1; + + return 0; + } + + + static FT_Int32 + ft_lzwstate_get_code( FT_LzwState state ) + { + FT_UInt num_bits = state->num_bits; + FT_Int offset = state->buf_offset; + FT_Byte* p; + FT_Int result; + + + if ( state->buf_clear || + offset >= state->buf_size || + state->free_ent >= state->free_bits ) + { + if ( state->free_ent >= state->free_bits ) + { + state->num_bits = ++num_bits; + state->free_bits = state->num_bits < state->max_bits + ? (FT_UInt)( ( 1UL << num_bits ) - 256 ) + : state->max_free + 1; + } + + if ( state->buf_clear ) + { + state->num_bits = num_bits = LZW_INIT_BITS; + state->free_bits = (FT_UInt)( ( 1UL << num_bits ) - 256 ); + state->buf_clear = 0; + } + + if ( ft_lzwstate_refill( state ) < 0 ) + return -1; + + offset = 0; + } + + state->buf_offset = offset + num_bits; + + p = &state->buf_tab[offset >> 3]; + offset &= 7; + result = *p++ >> offset; + offset = 8 - offset; + num_bits -= offset; + + if ( num_bits >= 8 ) + { + result |= *p++ << offset; + offset += 8; + num_bits -= 8; + } + if ( num_bits > 0 ) + result |= ( *p & LZW_MASK( num_bits ) ) << offset; + + return result; + } + + + /* grow the character stack */ + static int + ft_lzwstate_stack_grow( FT_LzwState state ) + { + if ( state->stack_top >= state->stack_size ) + { + FT_Memory memory = state->memory; + FT_Error error; + FT_Offset old_size = state->stack_size; + FT_Offset new_size = old_size; + + new_size = new_size + ( new_size >> 1 ) + 4; + + if ( state->stack == state->stack_0 ) + { + state->stack = NULL; + old_size = 0; + } + + if ( FT_RENEW_ARRAY( state->stack, old_size, new_size ) ) + return -1; + + state->stack_size = new_size; + } + return 0; + } + + + /* grow the prefix/suffix arrays */ + static int + ft_lzwstate_prefix_grow( FT_LzwState state ) + { + FT_UInt old_size = state->prefix_size; + FT_UInt new_size = old_size; + FT_Memory memory = state->memory; + FT_Error error; + + + if ( new_size == 0 ) /* first allocation -> 9 bits */ + new_size = 512; + else + new_size += new_size >> 2; /* don't grow too fast */ + + /* + * Note that the `suffix' array is located in the same memory block + * pointed to by `prefix'. + * + * I know that sizeof(FT_Byte) == 1 by definition, but it is clearer + * to write it literally. + * + */ + if ( FT_REALLOC_MULT( state->prefix, old_size, new_size, + sizeof ( FT_UShort ) + sizeof ( FT_Byte ) ) ) + return -1; + + /* now adjust `suffix' and move the data accordingly */ + state->suffix = (FT_Byte*)( state->prefix + new_size ); + + FT_MEM_MOVE( state->suffix, + state->prefix + old_size, + old_size * sizeof ( FT_Byte ) ); + + state->prefix_size = new_size; + return 0; + } + + + FT_LOCAL_DEF( void ) + ft_lzwstate_reset( FT_LzwState state ) + { + state->in_eof = 0; + state->buf_offset = 0; + state->buf_size = 0; + state->buf_clear = 0; + state->buf_total = 0; + state->stack_top = 0; + state->num_bits = LZW_INIT_BITS; + state->phase = FT_LZW_PHASE_START; + } + + + FT_LOCAL_DEF( void ) + ft_lzwstate_init( FT_LzwState state, + FT_Stream source ) + { + FT_ZERO( state ); + + state->source = source; + state->memory = source->memory; + + state->prefix = NULL; + state->suffix = NULL; + state->prefix_size = 0; + + state->stack = state->stack_0; + state->stack_size = sizeof ( state->stack_0 ); + + ft_lzwstate_reset( state ); + } + + + FT_LOCAL_DEF( void ) + ft_lzwstate_done( FT_LzwState state ) + { + FT_Memory memory = state->memory; + + + ft_lzwstate_reset( state ); + + if ( state->stack != state->stack_0 ) + FT_FREE( state->stack ); + + FT_FREE( state->prefix ); + state->suffix = NULL; + + FT_ZERO( state ); + } + + +#define FTLZW_STACK_PUSH( c ) \ + FT_BEGIN_STMNT \ + if ( state->stack_top >= state->stack_size && \ + ft_lzwstate_stack_grow( state ) < 0 ) \ + goto Eof; \ + \ + state->stack[state->stack_top++] = (FT_Byte)(c); \ + FT_END_STMNT + + + FT_LOCAL_DEF( FT_ULong ) + ft_lzwstate_io( FT_LzwState state, + FT_Byte* buffer, + FT_ULong out_size ) + { + FT_ULong result = 0; + + FT_UInt old_char = state->old_char; + FT_UInt old_code = state->old_code; + FT_UInt in_code = state->in_code; + + + if ( out_size == 0 ) + goto Exit; + + switch ( state->phase ) + { + case FT_LZW_PHASE_START: + { + FT_Byte max_bits; + FT_Int32 c; + + + /* skip magic bytes, and read max_bits + block_flag */ + if ( FT_Stream_Seek( state->source, 2 ) != 0 || + FT_Stream_TryRead( state->source, &max_bits, 1 ) != 1 ) + goto Eof; + + state->max_bits = max_bits & LZW_BIT_MASK; + state->block_mode = max_bits & LZW_BLOCK_MASK; + state->max_free = (FT_UInt)( ( 1UL << state->max_bits ) - 256 ); + + if ( state->max_bits > LZW_MAX_BITS ) + goto Eof; + + state->num_bits = LZW_INIT_BITS; + state->free_ent = ( state->block_mode ? LZW_FIRST + : LZW_CLEAR ) - 256; + in_code = 0; + + state->free_bits = state->num_bits < state->max_bits + ? (FT_UInt)( ( 1UL << state->num_bits ) - 256 ) + : state->max_free + 1; + + c = ft_lzwstate_get_code( state ); + if ( c < 0 ) + goto Eof; + + old_code = old_char = (FT_UInt)c; + + if ( buffer ) + buffer[result] = (FT_Byte)old_char; + + if ( ++result >= out_size ) + goto Exit; + + state->phase = FT_LZW_PHASE_CODE; + } + /* fall-through */ + + case FT_LZW_PHASE_CODE: + { + FT_Int32 c; + FT_UInt code; + + + NextCode: + c = ft_lzwstate_get_code( state ); + if ( c < 0 ) + goto Eof; + + code = (FT_UInt)c; + + if ( code == LZW_CLEAR && state->block_mode ) + { + /* why not LZW_FIRST-256 ? */ + state->free_ent = ( LZW_FIRST - 1 ) - 256; + state->buf_clear = 1; + c = ft_lzwstate_get_code( state ); + if ( c < 0 ) + goto Eof; + + code = (FT_UInt)c; + } + + in_code = code; /* save code for later */ + + if ( code >= 256U ) + { + /* special case for KwKwKwK */ + if ( code - 256U >= state->free_ent ) + { + FTLZW_STACK_PUSH( old_char ); + code = old_code; + } + + while ( code >= 256U ) + { + if ( !state->prefix ) + goto Eof; + + FTLZW_STACK_PUSH( state->suffix[code - 256] ); + code = state->prefix[code - 256]; + } + } + + old_char = code; + FTLZW_STACK_PUSH( old_char ); + + state->phase = FT_LZW_PHASE_STACK; + } + /* fall-through */ + + case FT_LZW_PHASE_STACK: + { + while ( state->stack_top > 0 ) + { + --state->stack_top; + + if ( buffer ) + buffer[result] = state->stack[state->stack_top]; + + if ( ++result == out_size ) + goto Exit; + } + + /* now create new entry */ + if ( state->free_ent < state->max_free ) + { + if ( state->free_ent >= state->prefix_size && + ft_lzwstate_prefix_grow( state ) < 0 ) + goto Eof; + + FT_ASSERT( state->free_ent < state->prefix_size ); + + state->prefix[state->free_ent] = (FT_UShort)old_code; + state->suffix[state->free_ent] = (FT_Byte) old_char; + + state->free_ent += 1; + } + + old_code = in_code; + + state->phase = FT_LZW_PHASE_CODE; + goto NextCode; + } + + default: /* state == EOF */ + ; + } + + Exit: + state->old_code = old_code; + state->old_char = old_char; + state->in_code = in_code; + + return result; + + Eof: + state->phase = FT_LZW_PHASE_EOF; + goto Exit; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.h b/uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.h new file mode 100644 index 000000000..9ef988a42 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/lzw/ftzopen.h @@ -0,0 +1,171 @@ +/***************************************************************************/ +/* */ +/* ftzopen.h */ +/* */ +/* FreeType support for .Z compressed files. */ +/* */ +/* This optional component relies on NetBSD's zopen(). It should mainly */ +/* be used to parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2005, 2006, 2007, 2008 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __FT_ZOPEN_H__ +#define __FT_ZOPEN_H__ + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + + + /* + * This is a complete re-implementation of the LZW file reader, + * since the old one was incredibly badly written, using + * 400 KByte of heap memory before decompressing anything. + * + */ + +#define FT_LZW_IN_BUFF_SIZE 64 +#define FT_LZW_DEFAULT_STACK_SIZE 64 + +#define LZW_INIT_BITS 9 +#define LZW_MAX_BITS 16 + +#define LZW_CLEAR 256 +#define LZW_FIRST 257 + +#define LZW_BIT_MASK 0x1f +#define LZW_BLOCK_MASK 0x80 +#define LZW_MASK( n ) ( ( 1U << (n) ) - 1U ) + + + typedef enum FT_LzwPhase_ + { + FT_LZW_PHASE_START = 0, + FT_LZW_PHASE_CODE, + FT_LZW_PHASE_STACK, + FT_LZW_PHASE_EOF + + } FT_LzwPhase; + + + /* + * state of LZW decompressor + * + * small technical note + * -------------------- + * + * We use a few tricks in this implementation that are explained here to + * ease debugging and maintenance. + * + * - First of all, the `prefix' and `suffix' arrays contain the suffix + * and prefix for codes over 256; this means that + * + * prefix_of(code) == state->prefix[code-256] + * suffix_of(code) == state->suffix[code-256] + * + * Each prefix is a 16-bit code, and each suffix an 8-bit byte. + * + * Both arrays are stored in a single memory block, pointed to by + * `state->prefix'. This means that the following equality is always + * true: + * + * state->suffix == (FT_Byte*)(state->prefix + state->prefix_size) + * + * Of course, state->prefix_size is the number of prefix/suffix slots + * in the arrays, corresponding to codes 256..255+prefix_size. + * + * - `free_ent' is the index of the next free entry in the `prefix' + * and `suffix' arrays. This means that the corresponding `next free + * code' is really `256+free_ent'. + * + * Moreover, `max_free' is the maximum value that `free_ent' can reach. + * + * `max_free' corresponds to `(1 << max_bits) - 256'. Note that this + * value is always <= 0xFF00, which means that both `free_ent' and + * `max_free' can be stored in an FT_UInt variable, even on 16-bit + * machines. + * + * If `free_ent == max_free', you cannot add new codes to the + * prefix/suffix table. + * + * - `num_bits' is the current number of code bits, starting at 9 and + * growing each time `free_ent' reaches the value of `free_bits'. The + * latter is computed as follows + * + * if num_bits < max_bits: + * free_bits = (1 << num_bits)-256 + * else: + * free_bits = max_free + 1 + * + * Since the value of `max_free + 1' can never be reached by + * `free_ent', `num_bits' cannot grow larger than `max_bits'. + */ + + typedef struct FT_LzwStateRec_ + { + FT_LzwPhase phase; + FT_Int in_eof; + + FT_Byte buf_tab[16]; + FT_Int buf_offset; + FT_Int buf_size; + FT_Bool buf_clear; + FT_Offset buf_total; + + FT_UInt max_bits; /* max code bits, from file header */ + FT_Int block_mode; /* block mode flag, from file header */ + FT_UInt max_free; /* (1 << max_bits) - 256 */ + + FT_UInt num_bits; /* current code bit number */ + FT_UInt free_ent; /* index of next free entry */ + FT_UInt free_bits; /* if reached by free_ent, increment num_bits */ + FT_UInt old_code; + FT_UInt old_char; + FT_UInt in_code; + + FT_UShort* prefix; /* always dynamically allocated / reallocated */ + FT_Byte* suffix; /* suffix = (FT_Byte*)(prefix + prefix_size) */ + FT_UInt prefix_size; /* number of slots in `prefix' or `suffix' */ + + FT_Byte* stack; /* character stack */ + FT_UInt stack_top; + FT_Offset stack_size; + FT_Byte stack_0[FT_LZW_DEFAULT_STACK_SIZE]; /* minimize heap alloc */ + + FT_Stream source; /* source stream */ + FT_Memory memory; + + } FT_LzwStateRec, *FT_LzwState; + + + FT_LOCAL( void ) + ft_lzwstate_init( FT_LzwState state, + FT_Stream source ); + + FT_LOCAL( void ) + ft_lzwstate_done( FT_LzwState state ); + + + FT_LOCAL( void ) + ft_lzwstate_reset( FT_LzwState state ); + + + FT_LOCAL( FT_ULong ) + ft_lzwstate_io( FT_LzwState state, + FT_Byte* buffer, + FT_ULong out_size ); + +/* */ + +#endif /* __FT_ZOPEN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.c new file mode 100644 index 000000000..432b5666f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.c @@ -0,0 +1,31 @@ +/***************************************************************************/ +/* */ +/* otvalid.c */ +/* */ +/* FreeType validator for OpenType tables (body only). */ +/* */ +/* Copyright 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> + +#include "otvbase.c" +#include "otvcommn.c" +#include "otvgdef.c" +#include "otvgpos.c" +#include "otvgsub.c" +#include "otvjstf.c" +#include "otvmath.c" +#include "otvmod.c" + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.h b/uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.h new file mode 100644 index 000000000..0577ffde9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvalid.h @@ -0,0 +1,78 @@ +/***************************************************************************/ +/* */ +/* otvalid.h */ +/* */ +/* OpenType table validation (specification only). */ +/* */ +/* Copyright 2004, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVALID_H__ +#define __OTVALID_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H + +#include "otverror.h" /* must come before FT_INTERNAL_VALIDATE_H */ + +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + otv_BASE_validate( FT_Bytes table, + FT_Validator valid ); + + /* GSUB and GPOS tables should already be validated; */ + /* if missing, set corresponding argument to 0 */ + FT_LOCAL( void ) + otv_GDEF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator valid ); + + FT_LOCAL( void ) + otv_GPOS_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator valid ); + + FT_LOCAL( void ) + otv_GSUB_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator valid ); + + /* GSUB and GPOS tables should already be validated; */ + /* if missing, set corresponding argument to 0 */ + FT_LOCAL( void ) + otv_JSTF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator valid ); + + FT_LOCAL( void ) + otv_MATH_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ); + + +FT_END_HEADER + +#endif /* __OTVALID_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvbase.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvbase.c new file mode 100644 index 000000000..d742d2dc9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvbase.c @@ -0,0 +1,318 @@ +/***************************************************************************/ +/* */ +/* otvbase.c */ +/* */ +/* OpenType BASE table validation (body). */ +/* */ +/* Copyright 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvbase + + + static void + otv_BaseCoord_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseCoordFormat; + + + OTV_NAME_ENTER( "BaseCoord" ); + + OTV_LIMIT_CHECK( 4 ); + BaseCoordFormat = FT_NEXT_USHORT( p ); + p += 2; /* skip Coordinate */ + + OTV_TRACE(( " (format %d)\n", BaseCoordFormat )); + + switch ( BaseCoordFormat ) + { + case 1: /* BaseCoordFormat1 */ + break; + + case 2: /* BaseCoordFormat2 */ + OTV_LIMIT_CHECK( 4 ); /* ReferenceGlyph, BaseCoordPoint */ + break; + + case 3: /* BaseCoordFormat3 */ + OTV_LIMIT_CHECK( 2 ); + /* DeviceTable */ + otv_Device_validate( table + FT_NEXT_USHORT( p ), valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + static void + otv_BaseTagList_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseTagCount; + + + OTV_NAME_ENTER( "BaseTagList" ); + + OTV_LIMIT_CHECK( 2 ); + + BaseTagCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseTagCount = %d)\n", BaseTagCount )); + + OTV_LIMIT_CHECK( BaseTagCount * 4 ); /* BaselineTag */ + + OTV_EXIT; + } + + + static void + otv_BaseValues_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseCoordCount; + + + OTV_NAME_ENTER( "BaseValues" ); + + OTV_LIMIT_CHECK( 4 ); + + p += 2; /* skip DefaultIndex */ + BaseCoordCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseCoordCount = %d)\n", BaseCoordCount )); + + OTV_LIMIT_CHECK( BaseCoordCount * 2 ); + + /* BaseCoord */ + for ( ; BaseCoordCount > 0; BaseCoordCount-- ) + otv_BaseCoord_validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + static void + otv_MinMax_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt FeatMinMaxCount; + + OTV_OPTIONAL_TABLE( MinCoord ); + OTV_OPTIONAL_TABLE( MaxCoord ); + + + OTV_NAME_ENTER( "MinMax" ); + + OTV_LIMIT_CHECK( 6 ); + + OTV_OPTIONAL_OFFSET( MinCoord ); + OTV_OPTIONAL_OFFSET( MaxCoord ); + FeatMinMaxCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (FeatMinMaxCount = %d)\n", FeatMinMaxCount )); + + table_size = FeatMinMaxCount * 8 + 6; + + OTV_SIZE_CHECK( MinCoord ); + if ( MinCoord ) + otv_BaseCoord_validate( table + MinCoord, valid ); + + OTV_SIZE_CHECK( MaxCoord ); + if ( MaxCoord ) + otv_BaseCoord_validate( table + MaxCoord, valid ); + + OTV_LIMIT_CHECK( FeatMinMaxCount * 8 ); + + /* FeatMinMaxRecord */ + for ( ; FeatMinMaxCount > 0; FeatMinMaxCount-- ) + { + p += 4; /* skip FeatureTableTag */ + + OTV_OPTIONAL_OFFSET( MinCoord ); + OTV_OPTIONAL_OFFSET( MaxCoord ); + + OTV_SIZE_CHECK( MinCoord ); + if ( MinCoord ) + otv_BaseCoord_validate( table + MinCoord, valid ); + + OTV_SIZE_CHECK( MaxCoord ); + if ( MaxCoord ) + otv_BaseCoord_validate( table + MaxCoord, valid ); + } + + OTV_EXIT; + } + + + static void + otv_BaseScript_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt BaseLangSysCount; + + OTV_OPTIONAL_TABLE( BaseValues ); + OTV_OPTIONAL_TABLE( DefaultMinMax ); + + + OTV_NAME_ENTER( "BaseScript" ); + + OTV_LIMIT_CHECK( 6 ); + OTV_OPTIONAL_OFFSET( BaseValues ); + OTV_OPTIONAL_OFFSET( DefaultMinMax ); + BaseLangSysCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseLangSysCount = %d)\n", BaseLangSysCount )); + + table_size = BaseLangSysCount * 6 + 6; + + OTV_SIZE_CHECK( BaseValues ); + if ( BaseValues ) + otv_BaseValues_validate( table + BaseValues, valid ); + + OTV_SIZE_CHECK( DefaultMinMax ); + if ( DefaultMinMax ) + otv_MinMax_validate( table + DefaultMinMax, valid ); + + OTV_LIMIT_CHECK( BaseLangSysCount * 6 ); + + /* BaseLangSysRecord */ + for ( ; BaseLangSysCount > 0; BaseLangSysCount-- ) + { + p += 4; /* skip BaseLangSysTag */ + + otv_MinMax_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + static void + otv_BaseScriptList_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseScriptCount; + + + OTV_NAME_ENTER( "BaseScriptList" ); + + OTV_LIMIT_CHECK( 2 ); + BaseScriptCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseScriptCount = %d)\n", BaseScriptCount )); + + OTV_LIMIT_CHECK( BaseScriptCount * 6 ); + + /* BaseScriptRecord */ + for ( ; BaseScriptCount > 0; BaseScriptCount-- ) + { + p += 4; /* skip BaseScriptTag */ + + /* BaseScript */ + otv_BaseScript_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + static void + otv_Axis_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( BaseTagList ); + + + OTV_NAME_ENTER( "Axis" ); + + OTV_LIMIT_CHECK( 4 ); + OTV_OPTIONAL_OFFSET( BaseTagList ); + + table_size = 4; + + OTV_SIZE_CHECK( BaseTagList ); + if ( BaseTagList ) + otv_BaseTagList_validate( table + BaseTagList, valid ); + + /* BaseScriptList */ + otv_BaseScriptList_validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + FT_LOCAL_DEF( void ) + otv_BASE_validate( FT_Bytes table, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( HorizAxis ); + OTV_OPTIONAL_TABLE( VertAxis ); + + + valid->root = ftvalid; + + FT_TRACE3(( "validating BASE table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 6 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + table_size = 6; + + OTV_OPTIONAL_OFFSET( HorizAxis ); + OTV_SIZE_CHECK( HorizAxis ); + if ( HorizAxis ) + otv_Axis_validate( table + HorizAxis, valid ); + + OTV_OPTIONAL_OFFSET( VertAxis ); + OTV_SIZE_CHECK( VertAxis ); + if ( VertAxis ) + otv_Axis_validate( table + VertAxis, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.c new file mode 100644 index 000000000..a4f885b51 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.c @@ -0,0 +1,1086 @@ +/***************************************************************************/ +/* */ +/* otvcommn.c */ +/* */ +/* OpenType common tables validation (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvcommon + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** COVERAGE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_Coverage_validate( FT_Bytes table, + OTV_Validator valid, + FT_Int expected_count ) + { + FT_Bytes p = table; + FT_UInt CoverageFormat; + FT_UInt total = 0; + + + OTV_NAME_ENTER( "Coverage" ); + + OTV_LIMIT_CHECK( 4 ); + CoverageFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", CoverageFormat )); + + switch ( CoverageFormat ) + { + case 1: /* CoverageFormat1 */ + { + FT_UInt GlyphCount; + FT_UInt i; + + + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + OTV_LIMIT_CHECK( GlyphCount * 2 ); /* GlyphArray */ + + for ( i = 0; i < GlyphCount; ++i ) + { + FT_UInt gid; + + + gid = FT_NEXT_USHORT( p ); + if ( gid >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + } + + total = GlyphCount; + } + break; + + case 2: /* CoverageFormat2 */ + { + FT_UInt n, RangeCount; + FT_UInt Start, End, StartCoverageIndex, last = 0; + + + RangeCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (RangeCount = %d)\n", RangeCount )); + + OTV_LIMIT_CHECK( RangeCount * 6 ); + + /* RangeRecord */ + for ( n = 0; n < RangeCount; n++ ) + { + Start = FT_NEXT_USHORT( p ); + End = FT_NEXT_USHORT( p ); + StartCoverageIndex = FT_NEXT_USHORT( p ); + + if ( Start > End || StartCoverageIndex != total ) + FT_INVALID_DATA; + + if ( End >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + + if ( n > 0 && Start <= last ) + FT_INVALID_DATA; + + total += End - Start + 1; + last = End; + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + /* Generally, a coverage table offset has an associated count field. */ + /* The number of glyphs in the table should match this field. If */ + /* there is no associated count, a value of -1 tells us not to check. */ + if ( expected_count != -1 && (FT_UInt)expected_count != total ) + FT_INVALID_DATA; + + OTV_EXIT; + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_Coverage_get_first( FT_Bytes table ) + { + FT_Bytes p = table; + + + p += 4; /* skip CoverageFormat and Glyph/RangeCount */ + + return FT_NEXT_USHORT( p ); + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_Coverage_get_last( FT_Bytes table ) + { + FT_Bytes p = table; + FT_UInt CoverageFormat = FT_NEXT_USHORT( p ); + FT_UInt count = FT_NEXT_USHORT( p ); /* Glyph/RangeCount */ + FT_UInt result = 0; + + + switch ( CoverageFormat ) + { + case 1: + p += ( count - 1 ) * 2; + result = FT_NEXT_USHORT( p ); + break; + + case 2: + p += ( count - 1 ) * 6 + 2; + result = FT_NEXT_USHORT( p ); + break; + + default: + ; + } + + return result; + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_Coverage_get_count( FT_Bytes table ) + { + FT_Bytes p = table; + FT_UInt CoverageFormat = FT_NEXT_USHORT( p ); + FT_UInt count = FT_NEXT_USHORT( p ); /* Glyph/RangeCount */ + FT_UInt result = 0; + + + switch ( CoverageFormat ) + { + case 1: + return count; + + case 2: + { + FT_UInt Start, End; + + + for ( ; count > 0; count-- ) + { + Start = FT_NEXT_USHORT( p ); + End = FT_NEXT_USHORT( p ); + p += 2; /* skip StartCoverageIndex */ + + result += End - Start + 1; + } + } + break; + + default: + ; + } + + return result; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CLASS DEFINITION TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_ClassDef_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt ClassFormat; + + + OTV_NAME_ENTER( "ClassDef" ); + + OTV_LIMIT_CHECK( 4 ); + ClassFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", ClassFormat )); + + switch ( ClassFormat ) + { + case 1: /* ClassDefFormat1 */ + { + FT_UInt StartGlyph; + FT_UInt GlyphCount; + + + OTV_LIMIT_CHECK( 4 ); + + StartGlyph = FT_NEXT_USHORT( p ); + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + OTV_LIMIT_CHECK( GlyphCount * 2 ); /* ClassValueArray */ + + if ( StartGlyph + GlyphCount - 1 >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + } + break; + + case 2: /* ClassDefFormat2 */ + { + FT_UInt n, ClassRangeCount; + FT_UInt Start, End, last = 0; + + + ClassRangeCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ClassRangeCount = %d)\n", ClassRangeCount )); + + OTV_LIMIT_CHECK( ClassRangeCount * 6 ); + + /* ClassRangeRecord */ + for ( n = 0; n < ClassRangeCount; n++ ) + { + Start = FT_NEXT_USHORT( p ); + End = FT_NEXT_USHORT( p ); + p += 2; /* skip Class */ + + if ( Start > End || ( n > 0 && Start <= last ) ) + FT_INVALID_DATA; + + if ( End >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + + last = End; + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + /* no need to check glyph indices used as input to class definition */ + /* tables since even invalid glyph indices return a meaningful result */ + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** DEVICE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_Device_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt StartSize, EndSize, DeltaFormat, count; + + + OTV_NAME_ENTER( "Device" ); + + OTV_LIMIT_CHECK( 8 ); + StartSize = FT_NEXT_USHORT( p ); + EndSize = FT_NEXT_USHORT( p ); + DeltaFormat = FT_NEXT_USHORT( p ); + + if ( DeltaFormat < 1 || DeltaFormat > 3 ) + FT_INVALID_FORMAT; + + if ( EndSize < StartSize ) + FT_INVALID_DATA; + + count = EndSize - StartSize + 1; + OTV_LIMIT_CHECK( ( 1 << DeltaFormat ) * count / 8 ); /* DeltaValue */ + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->type_count */ + /* uses valid->type_funcs */ + + FT_LOCAL_DEF( void ) + otv_Lookup_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LookupType, SubTableCount; + OTV_Validate_Func validate; + + + OTV_NAME_ENTER( "Lookup" ); + + OTV_LIMIT_CHECK( 6 ); + LookupType = FT_NEXT_USHORT( p ); + p += 2; /* skip LookupFlag */ + SubTableCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (type %d)\n", LookupType )); + + if ( LookupType == 0 || LookupType > valid->type_count ) + FT_INVALID_DATA; + + validate = valid->type_funcs[LookupType - 1]; + + OTV_TRACE(( " (SubTableCount = %d)\n", SubTableCount )); + + OTV_LIMIT_CHECK( SubTableCount * 2 ); + + /* SubTable */ + for ( ; SubTableCount > 0; SubTableCount-- ) + validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_LookupList_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LookupCount; + + + OTV_NAME_ENTER( "LookupList" ); + + OTV_LIMIT_CHECK( 2 ); + LookupCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookupCount = %d)\n", LookupCount )); + + OTV_LIMIT_CHECK( LookupCount * 2 ); + + valid->lookup_count = LookupCount; + + /* Lookup */ + for ( ; LookupCount > 0; LookupCount-- ) + otv_Lookup_validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + static FT_UInt + otv_LookupList_get_count( FT_Bytes table ) + { + return FT_NEXT_USHORT( table ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FEATURES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_Feature_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LookupCount; + + + OTV_NAME_ENTER( "Feature" ); + + OTV_LIMIT_CHECK( 4 ); + p += 2; /* skip FeatureParams (unused) */ + LookupCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookupCount = %d)\n", LookupCount )); + + OTV_LIMIT_CHECK( LookupCount * 2 ); + + /* LookupListIndex */ + for ( ; LookupCount > 0; LookupCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->lookup_count ) + FT_INVALID_DATA; + + OTV_EXIT; + } + + + static FT_UInt + otv_Feature_get_count( FT_Bytes table ) + { + return FT_NEXT_USHORT( table ); + } + + + /* sets valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_FeatureList_validate( FT_Bytes table, + FT_Bytes lookups, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt FeatureCount; + + + OTV_NAME_ENTER( "FeatureList" ); + + OTV_LIMIT_CHECK( 2 ); + FeatureCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (FeatureCount = %d)\n", FeatureCount )); + + OTV_LIMIT_CHECK( FeatureCount * 2 ); + + valid->lookup_count = otv_LookupList_get_count( lookups ); + + /* FeatureRecord */ + for ( ; FeatureCount > 0; FeatureCount-- ) + { + p += 4; /* skip FeatureTag */ + + /* Feature */ + otv_Feature_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LANGUAGE SYSTEM *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* uses valid->extra1 (number of features) */ + + FT_LOCAL_DEF( void ) + otv_LangSys_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt ReqFeatureIndex; + FT_UInt FeatureCount; + + + OTV_NAME_ENTER( "LangSys" ); + + OTV_LIMIT_CHECK( 6 ); + p += 2; /* skip LookupOrder (unused) */ + ReqFeatureIndex = FT_NEXT_USHORT( p ); + FeatureCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ReqFeatureIndex = %d)\n", ReqFeatureIndex )); + OTV_TRACE(( " (FeatureCount = %d)\n", FeatureCount )); + + if ( ReqFeatureIndex != 0xFFFFU && ReqFeatureIndex >= valid->extra1 ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( FeatureCount * 2 ); + + /* FeatureIndex */ + for ( ; FeatureCount > 0; FeatureCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SCRIPTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_Script_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_UInt DefaultLangSys, LangSysCount; + FT_Bytes p = table; + + + OTV_NAME_ENTER( "Script" ); + + OTV_LIMIT_CHECK( 4 ); + DefaultLangSys = FT_NEXT_USHORT( p ); + LangSysCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LangSysCount = %d)\n", LangSysCount )); + + if ( DefaultLangSys != 0 ) + otv_LangSys_validate( table + DefaultLangSys, valid ); + + OTV_LIMIT_CHECK( LangSysCount * 6 ); + + /* LangSysRecord */ + for ( ; LangSysCount > 0; LangSysCount-- ) + { + p += 4; /* skip LangSysTag */ + + /* LangSys */ + otv_LangSys_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (number of features) */ + + FT_LOCAL_DEF( void ) + otv_ScriptList_validate( FT_Bytes table, + FT_Bytes features, + OTV_Validator valid ) + { + FT_UInt ScriptCount; + FT_Bytes p = table; + + + OTV_NAME_ENTER( "ScriptList" ); + + OTV_LIMIT_CHECK( 2 ); + ScriptCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ScriptCount = %d)\n", ScriptCount )); + + OTV_LIMIT_CHECK( ScriptCount * 6 ); + + valid->extra1 = otv_Feature_get_count( features ); + + /* ScriptRecord */ + for ( ; ScriptCount > 0; ScriptCount-- ) + { + p += 4; /* skip ScriptTag */ + + otv_Script_validate( table + FT_NEXT_USHORT( p ), valid ); /* Script */ + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + u: uint16 + ux: unit16 [x] + + s: struct + sx: struct [x] + sxy: struct [x], using external y count + + x: uint16 x + + C: Coverage + + O: Offset + On: Offset (NULL) + Ox: Offset [x] + Onx: Offset (NULL) [x] + */ + + FT_LOCAL_DEF( void ) + otv_x_Ox( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count; + OTV_Validate_Func func; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + + for ( ; Count > 0; Count-- ) + func( table + FT_NEXT_USHORT( p ), valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + FT_LOCAL_DEF( void ) + otv_u_C_x_Ox( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count, Coverage; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + otv_Coverage_validate( table + Coverage, valid, Count ); + + OTV_LIMIT_CHECK( Count * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + + for ( ; Count > 0; Count-- ) + func( table + FT_NEXT_USHORT( p ), valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + /* uses valid->extra1 (if > 0: array value limit) */ + + FT_LOCAL_DEF( void ) + otv_x_ux( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * 2 ); + + if ( valid->extra1 ) + { + for ( ; Count > 0; Count-- ) + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* `ux' in the function's name is not really correct since only x-1 */ + /* elements are tested */ + + /* uses valid->extra1 (array value limit) */ + + FT_LOCAL_DEF( void ) + otv_x_y_ux_sy( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count1, Count2; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + Count1 = FT_NEXT_USHORT( p ); + Count2 = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count1 = %d)\n", Count1 )); + OTV_TRACE(( " (Count2 = %d)\n", Count2 )); + + if ( Count1 == 0 ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( ( Count1 - 1 ) * 2 + Count2 * 4 ); + p += ( Count1 - 1 ) * 2; + + for ( ; Count2 > 0; Count2-- ) + { + if ( FT_NEXT_USHORT( p ) >= Count1 ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* `uy' in the function's name is not really correct since only y-1 */ + /* elements are tested */ + + /* uses valid->extra1 (array value limit) */ + + FT_LOCAL_DEF( void ) + otv_x_ux_y_uy_z_uz_p_sp( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BacktrackCount, InputCount, LookaheadCount; + FT_UInt Count; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + BacktrackCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BacktrackCount = %d)\n", BacktrackCount )); + + OTV_LIMIT_CHECK( BacktrackCount * 2 + 2 ); + p += BacktrackCount * 2; + + InputCount = FT_NEXT_USHORT( p ); + if ( InputCount == 0 ) + FT_INVALID_DATA; + + OTV_TRACE(( " (InputCount = %d)\n", InputCount )); + + OTV_LIMIT_CHECK( InputCount * 2 ); + p += ( InputCount - 1 ) * 2; + + LookaheadCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookaheadCount = %d)\n", LookaheadCount )); + + OTV_LIMIT_CHECK( LookaheadCount * 2 + 2 ); + p += LookaheadCount * 2; + + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * 4 ); + + for ( ; Count > 0; Count-- ) + { + if ( FT_NEXT_USHORT( p ) >= InputCount ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (valid->lookup_count) */ + + FT_LOCAL_DEF( void ) + otv_u_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Coverage, ClassDef, ClassSetCount; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 6 ); + Coverage = FT_NEXT_USHORT( p ); + ClassDef = FT_NEXT_USHORT( p ); + ClassSetCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ClassSetCount = %d)\n", ClassSetCount )); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + otv_ClassDef_validate( table + ClassDef, valid ); + + OTV_LIMIT_CHECK( ClassSetCount * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = valid->lookup_count; + + for ( ; ClassSetCount > 0; ClassSetCount-- ) + { + FT_UInt offset = FT_NEXT_USHORT( p ); + + + if ( offset ) + func( table + offset, valid ); + } + + valid->nesting_level--; + + OTV_EXIT; + } + + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_u_x_y_Ox_sy( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt GlyphCount, Count, count1; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 4 ); + GlyphCount = FT_NEXT_USHORT( p ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( GlyphCount * 2 + Count * 4 ); + + for ( count1 = GlyphCount; count1 > 0; count1-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + for ( ; Count > 0; Count-- ) + { + if ( FT_NEXT_USHORT( p ) >= GlyphCount ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->lookup_count ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (valid->lookup_count) */ + + FT_LOCAL_DEF( void ) + otv_u_O_O_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Coverage; + FT_UInt BacktrackClassDef, InputClassDef, LookaheadClassDef; + FT_UInt ChainClassSetCount; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 10 ); + Coverage = FT_NEXT_USHORT( p ); + BacktrackClassDef = FT_NEXT_USHORT( p ); + InputClassDef = FT_NEXT_USHORT( p ); + LookaheadClassDef = FT_NEXT_USHORT( p ); + ChainClassSetCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ChainClassSetCount = %d)\n", ChainClassSetCount )); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + + otv_ClassDef_validate( table + BacktrackClassDef, valid ); + otv_ClassDef_validate( table + InputClassDef, valid ); + otv_ClassDef_validate( table + LookaheadClassDef, valid ); + + OTV_LIMIT_CHECK( ChainClassSetCount * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = valid->lookup_count; + + for ( ; ChainClassSetCount > 0; ChainClassSetCount-- ) + { + FT_UInt offset = FT_NEXT_USHORT( p ); + + + if ( offset ) + func( table + offset, valid ); + } + + valid->nesting_level--; + + OTV_EXIT; + } + + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_u_x_Ox_y_Oy_z_Oz_p_sp( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BacktrackGlyphCount, InputGlyphCount, LookaheadGlyphCount; + FT_UInt count1, count2; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 2 ); + BacktrackGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BacktrackGlyphCount = %d)\n", BacktrackGlyphCount )); + + OTV_LIMIT_CHECK( BacktrackGlyphCount * 2 + 2 ); + + for ( ; BacktrackGlyphCount > 0; BacktrackGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + InputGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (InputGlyphCount = %d)\n", InputGlyphCount )); + + OTV_LIMIT_CHECK( InputGlyphCount * 2 + 2 ); + + for ( count1 = InputGlyphCount; count1 > 0; count1-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + LookaheadGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookaheadGlyphCount = %d)\n", LookaheadGlyphCount )); + + OTV_LIMIT_CHECK( LookaheadGlyphCount * 2 + 2 ); + + for ( ; LookaheadGlyphCount > 0; LookaheadGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + count2 = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", count2 )); + + OTV_LIMIT_CHECK( count2 * 4 ); + + for ( ; count2 > 0; count2-- ) + { + if ( FT_NEXT_USHORT( p ) >= InputGlyphCount ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->lookup_count ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_GSUBGPOS_get_Lookup_count( FT_Bytes table ) + { + FT_Bytes p = table + 8; + + + return otv_LookupList_get_count( table + FT_NEXT_USHORT( p ) ); + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_GSUBGPOS_have_MarkAttachmentType_flag( FT_Bytes table ) + { + FT_Bytes p, lookup; + FT_UInt count; + + + if ( !table ) + return 0; + + /* LookupList */ + p = table + 8; + table += FT_NEXT_USHORT( p ); + + /* LookupCount */ + p = table; + count = FT_NEXT_USHORT( p ); + + for ( ; count > 0; count-- ) + { + FT_Bytes oldp; + + + /* Lookup */ + lookup = table + FT_NEXT_USHORT( p ); + + oldp = p; + + /* LookupFlag */ + p = lookup + 2; + if ( FT_NEXT_USHORT( p ) & 0xFF00U ) + return 1; + + p = oldp; + } + + return 0; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.h b/uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.h new file mode 100644 index 000000000..783a32e74 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvcommn.h @@ -0,0 +1,437 @@ +/***************************************************************************/ +/* */ +/* otvcommn.h */ +/* */ +/* OpenType common tables validation (specification). */ +/* */ +/* Copyright 2004, 2005, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVCOMMN_H__ +#define __OTVCOMMN_H__ + + +#include <freetype/ft2build.h> +#include "otvalid.h" +#include FT_INTERNAL_DEBUG_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** VALIDATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct OTV_ValidatorRec_* OTV_Validator; + + typedef void (*OTV_Validate_Func)( FT_Bytes table, + OTV_Validator valid ); + + typedef struct OTV_ValidatorRec_ + { + FT_Validator root; + FT_UInt type_count; + OTV_Validate_Func* type_funcs; + + FT_UInt lookup_count; + FT_UInt glyph_count; + + FT_UInt nesting_level; + + OTV_Validate_Func func[3]; + + FT_UInt extra1; /* for passing parameters */ + FT_UInt extra2; + FT_Bytes extra3; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_UInt debug_indent; + const FT_String* debug_function_name[3]; +#endif + + } OTV_ValidatorRec; + + +#undef FT_INVALID_ +#define FT_INVALID_( _prefix, _error ) \ + ft_validator_error( valid->root, _prefix ## _error ) + +#define OTV_OPTIONAL_TABLE( _table ) FT_UShort _table; \ + FT_Bytes _table ## _p + +#define OTV_OPTIONAL_OFFSET( _offset ) \ + FT_BEGIN_STMNT \ + _offset ## _p = p; \ + _offset = FT_NEXT_USHORT( p ); \ + FT_END_STMNT + +#define OTV_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ + if ( p + (_count) > valid->root->limit ) \ + FT_INVALID_TOO_SHORT; \ + FT_END_STMNT + +#define OTV_SIZE_CHECK( _size ) \ + FT_BEGIN_STMNT \ + if ( _size > 0 && _size < table_size ) \ + { \ + if ( valid->root->level == FT_VALIDATE_PARANOID ) \ + FT_INVALID_OFFSET; \ + else \ + { \ + /* strip off `const' */ \ + FT_Byte* pp = (FT_Byte*)_size ## _p; \ + \ + \ + FT_TRACE3(( "\n" \ + "Invalid offset to optional table `%s'" \ + " set to zero.\n" \ + "\n", #_size )); \ + \ + /* always assume 16bit entities */ \ + _size = pp[0] = pp[1] = 0; \ + } \ + } \ + FT_END_STMNT + + +#define OTV_NAME_(x) #x +#define OTV_NAME(x) OTV_NAME_(x) + +#define OTV_FUNC_(x) x##Func +#define OTV_FUNC(x) OTV_FUNC_(x) + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define OTV_NEST1( x ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->debug_function_name[0] = OTV_NAME( x ); \ + FT_END_STMNT + +#define OTV_NEST2( x, y ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + valid->debug_function_name[0] = OTV_NAME( x ); \ + valid->debug_function_name[1] = OTV_NAME( y ); \ + FT_END_STMNT + +#define OTV_NEST3( x, y, z ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + valid->func[2] = OTV_FUNC( z ); \ + valid->debug_function_name[0] = OTV_NAME( x ); \ + valid->debug_function_name[1] = OTV_NAME( y ); \ + valid->debug_function_name[2] = OTV_NAME( z ); \ + FT_END_STMNT + +#define OTV_INIT valid->debug_indent = 0 + +#define OTV_ENTER \ + FT_BEGIN_STMNT \ + valid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4(( "%s table\n", \ + valid->debug_function_name[valid->nesting_level] )); \ + FT_END_STMNT + +#define OTV_NAME_ENTER( name ) \ + FT_BEGIN_STMNT \ + valid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4(( "%s table\n", name )); \ + FT_END_STMNT + +#define OTV_EXIT valid->debug_indent -= 2 + +#define OTV_TRACE( s ) \ + FT_BEGIN_STMNT \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4( s ); \ + FT_END_STMNT + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define OTV_NEST1( x ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + FT_END_STMNT + +#define OTV_NEST2( x, y ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + FT_END_STMNT + +#define OTV_NEST3( x, y, z ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + valid->func[2] = OTV_FUNC( z ); \ + FT_END_STMNT + +#define OTV_INIT do { } while ( 0 ) +#define OTV_ENTER do { } while ( 0 ) +#define OTV_NAME_ENTER( name ) do { } while ( 0 ) +#define OTV_EXIT do { } while ( 0 ) + +#define OTV_TRACE( s ) do { } while ( 0 ) + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +#define OTV_RUN valid->func[0] + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** COVERAGE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Coverage_validate( FT_Bytes table, + OTV_Validator valid, + FT_Int expected_count ); + + /* return first covered glyph */ + FT_LOCAL( FT_UInt ) + otv_Coverage_get_first( FT_Bytes table ); + + /* return last covered glyph */ + FT_LOCAL( FT_UInt ) + otv_Coverage_get_last( FT_Bytes table ); + + /* return number of covered glyphs */ + FT_LOCAL( FT_UInt ) + otv_Coverage_get_count( FT_Bytes table ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CLASS DEFINITION TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_ClassDef_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** DEVICE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Device_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Lookup_validate( FT_Bytes table, + OTV_Validator valid ); + + FT_LOCAL( void ) + otv_LookupList_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FEATURES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Feature_validate( FT_Bytes table, + OTV_Validator valid ); + + /* lookups must already be validated */ + FT_LOCAL( void ) + otv_FeatureList_validate( FT_Bytes table, + FT_Bytes lookups, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LANGUAGE SYSTEM *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_LangSys_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SCRIPTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Script_validate( FT_Bytes table, + OTV_Validator valid ); + + /* features must already be validated */ + FT_LOCAL( void ) + otv_ScriptList_validate( FT_Bytes table, + FT_Bytes features, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define ChainPosClassSetFunc otv_x_Ox +#define ChainPosRuleSetFunc otv_x_Ox +#define ChainSubClassSetFunc otv_x_Ox +#define ChainSubRuleSetFunc otv_x_Ox +#define JstfLangSysFunc otv_x_Ox +#define JstfMaxFunc otv_x_Ox +#define LigGlyphFunc otv_x_Ox +#define LigatureArrayFunc otv_x_Ox +#define LigatureSetFunc otv_x_Ox +#define PosClassSetFunc otv_x_Ox +#define PosRuleSetFunc otv_x_Ox +#define SubClassSetFunc otv_x_Ox +#define SubRuleSetFunc otv_x_Ox + + FT_LOCAL( void ) + otv_x_Ox ( FT_Bytes table, + OTV_Validator valid ); + +#define AlternateSubstFormat1Func otv_u_C_x_Ox +#define ChainContextPosFormat1Func otv_u_C_x_Ox +#define ChainContextSubstFormat1Func otv_u_C_x_Ox +#define ContextPosFormat1Func otv_u_C_x_Ox +#define ContextSubstFormat1Func otv_u_C_x_Ox +#define LigatureSubstFormat1Func otv_u_C_x_Ox +#define MultipleSubstFormat1Func otv_u_C_x_Ox + + FT_LOCAL( void ) + otv_u_C_x_Ox( FT_Bytes table, + OTV_Validator valid ); + +#define AlternateSetFunc otv_x_ux +#define AttachPointFunc otv_x_ux +#define ExtenderGlyphFunc otv_x_ux +#define JstfGPOSModListFunc otv_x_ux +#define JstfGSUBModListFunc otv_x_ux +#define SequenceFunc otv_x_ux + + FT_LOCAL( void ) + otv_x_ux( FT_Bytes table, + OTV_Validator valid ); + +#define PosClassRuleFunc otv_x_y_ux_sy +#define PosRuleFunc otv_x_y_ux_sy +#define SubClassRuleFunc otv_x_y_ux_sy +#define SubRuleFunc otv_x_y_ux_sy + + FT_LOCAL( void ) + otv_x_y_ux_sy( FT_Bytes table, + OTV_Validator valid ); + +#define ChainPosClassRuleFunc otv_x_ux_y_uy_z_uz_p_sp +#define ChainPosRuleFunc otv_x_ux_y_uy_z_uz_p_sp +#define ChainSubClassRuleFunc otv_x_ux_y_uy_z_uz_p_sp +#define ChainSubRuleFunc otv_x_ux_y_uy_z_uz_p_sp + + FT_LOCAL( void ) + otv_x_ux_y_uy_z_uz_p_sp( FT_Bytes table, + OTV_Validator valid ); + +#define ContextPosFormat2Func otv_u_O_O_x_Onx +#define ContextSubstFormat2Func otv_u_O_O_x_Onx + + FT_LOCAL( void ) + otv_u_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ); + +#define ContextPosFormat3Func otv_u_x_y_Ox_sy +#define ContextSubstFormat3Func otv_u_x_y_Ox_sy + + FT_LOCAL( void ) + otv_u_x_y_Ox_sy( FT_Bytes table, + OTV_Validator valid ); + +#define ChainContextPosFormat2Func otv_u_O_O_O_O_x_Onx +#define ChainContextSubstFormat2Func otv_u_O_O_O_O_x_Onx + + FT_LOCAL( void ) + otv_u_O_O_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ); + +#define ChainContextPosFormat3Func otv_u_x_Ox_y_Oy_z_Oz_p_sp +#define ChainContextSubstFormat3Func otv_u_x_Ox_y_Oy_z_Oz_p_sp + + FT_LOCAL( void ) + otv_u_x_Ox_y_Oy_z_Oz_p_sp( FT_Bytes table, + OTV_Validator valid ); + + + FT_LOCAL( FT_UInt ) + otv_GSUBGPOS_get_Lookup_count( FT_Bytes table ); + + FT_LOCAL( FT_UInt ) + otv_GSUBGPOS_have_MarkAttachmentType_flag( FT_Bytes table ); + + /* */ + +FT_END_HEADER + +#endif /* __OTVCOMMN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otverror.h b/uppsrc/plugin/FT_fontsys/src/otvalid/otverror.h new file mode 100644 index 000000000..041b53836 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otverror.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* otverror.h */ +/* */ +/* OpenType validation module error codes (specification only). */ +/* */ +/* Copyright 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the OpenType validation module error */ + /* enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __OTVERROR_H__ +#define __OTVERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX OTV_Err_ +#define FT_ERR_BASE FT_Mod_Err_OTvalid + +#define FT_KEEP_ERR_PREFIX + +#include FT_ERRORS_H + +#endif /* __OTVERROR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvgdef.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgdef.c new file mode 100644 index 000000000..3633ad0de --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgdef.c @@ -0,0 +1,224 @@ +/***************************************************************************/ +/* */ +/* otvgdef.c */ +/* */ +/* OpenType GDEF table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvgdef + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define AttachListFunc otv_O_x_Ox +#define LigCaretListFunc otv_O_x_Ox + + /* sets valid->extra1 (0) */ + + static void + otv_O_x_Ox( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes Coverage; + FT_UInt GlyphCount; + OTV_Validate_Func func; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + Coverage = table + FT_NEXT_USHORT( p ); + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + otv_Coverage_validate( Coverage, valid, GlyphCount ); + if ( GlyphCount != otv_Coverage_get_count( Coverage ) ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( GlyphCount * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = 0; + + for ( ; GlyphCount > 0; GlyphCount-- ) + func( table + FT_NEXT_USHORT( p ), valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LIGATURE CARETS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define CaretValueFunc otv_CaretValue_validate + + static void + otv_CaretValue_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt CaretValueFormat; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + + CaretValueFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format = %d)\n", CaretValueFormat )); + + switch ( CaretValueFormat ) + { + case 1: /* CaretValueFormat1 */ + /* skip Coordinate, no test */ + break; + + case 2: /* CaretValueFormat2 */ + /* skip CaretValuePoint, no test */ + break; + + case 3: /* CaretValueFormat3 */ + p += 2; /* skip Coordinate */ + + OTV_LIMIT_CHECK( 2 ); + + /* DeviceTable */ + otv_Device_validate( table + FT_NEXT_USHORT( p ), valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GDEF TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_GDEF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt table_size; + FT_Bool need_MarkAttachClassDef; + + OTV_OPTIONAL_TABLE( GlyphClassDef ); + OTV_OPTIONAL_TABLE( AttachListOffset ); + OTV_OPTIONAL_TABLE( LigCaretListOffset ); + OTV_OPTIONAL_TABLE( MarkAttachClassDef ); + + + valid->root = ftvalid; + + FT_TRACE3(( "validating GDEF table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 12 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + /* MarkAttachClassDef has been added to the OpenType */ + /* specification without increasing GDEF's version, */ + /* so we use this ugly hack to find out whether the */ + /* table is needed actually. */ + + need_MarkAttachClassDef = FT_BOOL( + otv_GSUBGPOS_have_MarkAttachmentType_flag( gsub ) || + otv_GSUBGPOS_have_MarkAttachmentType_flag( gpos ) ); + + if ( need_MarkAttachClassDef ) + table_size = 12; /* OpenType >= 1.2 */ + else + table_size = 10; /* OpenType < 1.2 */ + + valid->glyph_count = glyph_count; + + OTV_OPTIONAL_OFFSET( GlyphClassDef ); + OTV_SIZE_CHECK( GlyphClassDef ); + if ( GlyphClassDef ) + otv_ClassDef_validate( table + GlyphClassDef, valid ); + + OTV_OPTIONAL_OFFSET( AttachListOffset ); + OTV_SIZE_CHECK( AttachListOffset ); + if ( AttachListOffset ) + { + OTV_NEST2( AttachList, AttachPoint ); + OTV_RUN( table + AttachListOffset, valid ); + } + + OTV_OPTIONAL_OFFSET( LigCaretListOffset ); + OTV_SIZE_CHECK( LigCaretListOffset ); + if ( LigCaretListOffset ) + { + OTV_NEST3( LigCaretList, LigGlyph, CaretValue ); + OTV_RUN( table + LigCaretListOffset, valid ); + } + + if ( need_MarkAttachClassDef ) + { + OTV_OPTIONAL_OFFSET( MarkAttachClassDef ); + OTV_SIZE_CHECK( MarkAttachClassDef ); + if ( MarkAttachClassDef ) + otv_ClassDef_validate( table + MarkAttachClassDef, valid ); + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.c new file mode 100644 index 000000000..49b46183a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.c @@ -0,0 +1,1017 @@ +/***************************************************************************/ +/* */ +/* otvgpos.c */ +/* */ +/* OpenType GPOS table validation (body). */ +/* */ +/* Copyright 2002, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" +#include "otvgpos.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvgpos + + + static void + otv_Anchor_validate( FT_Bytes table, + OTV_Validator valid ); + + static void + otv_MarkArray_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define BaseArrayFunc otv_x_sxy +#define LigatureAttachFunc otv_x_sxy +#define Mark2ArrayFunc otv_x_sxy + + /* uses valid->extra1 (counter) */ + /* uses valid->extra2 (boolean to handle NULL anchor field) */ + + static void + otv_x_sxy( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count, count1, table_size; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * valid->extra1 * 2 ); + + table_size = Count * valid->extra1 * 2 + 2; + + for ( ; Count > 0; Count-- ) + for ( count1 = valid->extra1; count1 > 0; count1-- ) + { + OTV_OPTIONAL_TABLE( anchor_offset ); + + + OTV_OPTIONAL_OFFSET( anchor_offset ); + + if ( valid->extra2 ) + { + OTV_SIZE_CHECK( anchor_offset ); + if ( anchor_offset ) + otv_Anchor_validate( table + anchor_offset, valid ); + } + else + otv_Anchor_validate( table + anchor_offset, valid ); + } + + OTV_EXIT; + } + + +#define MarkBasePosFormat1Func otv_u_O_O_u_O_O +#define MarkLigPosFormat1Func otv_u_O_O_u_O_O +#define MarkMarkPosFormat1Func otv_u_O_O_u_O_O + + /* sets valid->extra1 (class count) */ + + static void + otv_u_O_O_u_O_O( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Coverage1, Coverage2, ClassCount; + FT_UInt Array1, Array2; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip PosFormat */ + + OTV_LIMIT_CHECK( 10 ); + Coverage1 = FT_NEXT_USHORT( p ); + Coverage2 = FT_NEXT_USHORT( p ); + ClassCount = FT_NEXT_USHORT( p ); + Array1 = FT_NEXT_USHORT( p ); + Array2 = FT_NEXT_USHORT( p ); + + otv_Coverage_validate( table + Coverage1, valid, -1 ); + otv_Coverage_validate( table + Coverage2, valid, -1 ); + + otv_MarkArray_validate( table + Array1, valid ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = ClassCount; + + func( table + Array2, valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** VALUE RECORDS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_UInt + otv_value_length( FT_UInt format ) + { + FT_UInt count; + + + count = ( ( format & 0xAA ) >> 1 ) + ( format & 0x55 ); + count = ( ( count & 0xCC ) >> 2 ) + ( count & 0x33 ); + count = ( ( count & 0xF0 ) >> 4 ) + ( count & 0x0F ); + + return count * 2; + } + + + /* uses valid->extra3 (pointer to base table) */ + + static void + otv_ValueRecord_validate( FT_Bytes table, + FT_UInt format, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt count; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Int loop; + FT_ULong res = 0; + + + OTV_NAME_ENTER( "ValueRecord" ); + + /* display `format' in dual representation */ + for ( loop = 7; loop >= 0; loop-- ) + { + res <<= 4; + res += ( format >> loop ) & 1; + } + + OTV_TRACE(( " (format 0b%08lx)\n", res )); +#endif + + if ( format >= 0x100 ) + FT_INVALID_FORMAT; + + for ( count = 4; count > 0; count-- ) + { + if ( format & 1 ) + { + /* XPlacement, YPlacement, XAdvance, YAdvance */ + OTV_LIMIT_CHECK( 2 ); + p += 2; + } + + format >>= 1; + } + + for ( count = 4; count > 0; count-- ) + { + if ( format & 1 ) + { + FT_PtrDist table_size; + + OTV_OPTIONAL_TABLE( device ); + + + /* XPlaDevice, YPlaDevice, XAdvDevice, YAdvDevice */ + OTV_LIMIT_CHECK( 2 ); + OTV_OPTIONAL_OFFSET( device ); + + /* XXX: this value is usually too small, especially if the current */ + /* ValueRecord is part of an array -- getting the correct table */ + /* size is probably not worth the trouble */ + + table_size = p - valid->extra3; + + OTV_SIZE_CHECK( device ); + if ( device ) + otv_Device_validate( valid->extra3 + device, valid ); + } + format >>= 1; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** ANCHORS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_Anchor_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt AnchorFormat; + + + OTV_NAME_ENTER( "Anchor"); + + OTV_LIMIT_CHECK( 6 ); + AnchorFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", AnchorFormat )); + + p += 4; /* skip XCoordinate and YCoordinate */ + + switch ( AnchorFormat ) + { + case 1: + break; + + case 2: + OTV_LIMIT_CHECK( 2 ); /* AnchorPoint */ + break; + + case 3: + { + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( XDeviceTable ); + OTV_OPTIONAL_TABLE( YDeviceTable ); + + + OTV_LIMIT_CHECK( 4 ); + OTV_OPTIONAL_OFFSET( XDeviceTable ); + OTV_OPTIONAL_OFFSET( YDeviceTable ); + + table_size = 6 + 4; + + OTV_SIZE_CHECK( XDeviceTable ); + if ( XDeviceTable ) + otv_Device_validate( table + XDeviceTable, valid ); + + OTV_SIZE_CHECK( YDeviceTable ); + if ( YDeviceTable ) + otv_Device_validate( table + YDeviceTable, valid ); + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MARK ARRAYS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MarkArray_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt MarkCount; + + + OTV_NAME_ENTER( "MarkArray" ); + + OTV_LIMIT_CHECK( 2 ); + MarkCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (MarkCount = %d)\n", MarkCount )); + + OTV_LIMIT_CHECK( MarkCount * 4 ); + + /* MarkRecord */ + for ( ; MarkCount > 0; MarkCount-- ) + { + p += 2; /* skip Class */ + /* MarkAnchor */ + otv_Anchor_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 1 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra3 (pointer to base table) */ + + static void + otv_SinglePos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "SinglePos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + valid->extra3 = table; + + switch ( PosFormat ) + { + case 1: /* SinglePosFormat1 */ + { + FT_UInt Coverage, ValueFormat; + + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat = FT_NEXT_USHORT( p ); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + otv_ValueRecord_validate( p, ValueFormat, valid ); /* Value */ + } + break; + + case 2: /* SinglePosFormat2 */ + { + FT_UInt Coverage, ValueFormat, ValueCount, len_value; + + + OTV_LIMIT_CHECK( 6 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat = FT_NEXT_USHORT( p ); + ValueCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ValueCount = %d)\n", ValueCount )); + + len_value = otv_value_length( ValueFormat ); + + otv_Coverage_validate( table + Coverage, valid, ValueCount ); + + OTV_LIMIT_CHECK( ValueCount * len_value ); + + /* Value */ + for ( ; ValueCount > 0; ValueCount-- ) + { + otv_ValueRecord_validate( p, ValueFormat, valid ); + p += len_value; + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 2 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_PairSet_validate( FT_Bytes table, + FT_UInt format1, + FT_UInt format2, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt value_len1, value_len2, PairValueCount; + + + OTV_NAME_ENTER( "PairSet" ); + + OTV_LIMIT_CHECK( 2 ); + PairValueCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (PairValueCount = %d)\n", PairValueCount )); + + value_len1 = otv_value_length( format1 ); + value_len2 = otv_value_length( format2 ); + + OTV_LIMIT_CHECK( PairValueCount * ( value_len1 + value_len2 + 2 ) ); + + /* PairValueRecord */ + for ( ; PairValueCount > 0; PairValueCount-- ) + { + p += 2; /* skip SecondGlyph */ + + if ( format1 ) + otv_ValueRecord_validate( p, format1, valid ); /* Value1 */ + p += value_len1; + + if ( format2 ) + otv_ValueRecord_validate( p, format2, valid ); /* Value2 */ + p += value_len2; + } + + OTV_EXIT; + } + + + /* sets valid->extra3 (pointer to base table) */ + + static void + otv_PairPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "PairPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + valid->extra3 = table; + + switch ( PosFormat ) + { + case 1: /* PairPosFormat1 */ + { + FT_UInt Coverage, ValueFormat1, ValueFormat2, PairSetCount; + + + OTV_LIMIT_CHECK( 8 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat1 = FT_NEXT_USHORT( p ); + ValueFormat2 = FT_NEXT_USHORT( p ); + PairSetCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (PairSetCount = %d)\n", PairSetCount )); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + + OTV_LIMIT_CHECK( PairSetCount * 2 ); + + /* PairSetOffset */ + for ( ; PairSetCount > 0; PairSetCount-- ) + otv_PairSet_validate( table + FT_NEXT_USHORT( p ), + ValueFormat1, ValueFormat2, valid ); + } + break; + + case 2: /* PairPosFormat2 */ + { + FT_UInt Coverage, ValueFormat1, ValueFormat2, ClassDef1, ClassDef2; + FT_UInt ClassCount1, ClassCount2, len_value1, len_value2, count; + + + OTV_LIMIT_CHECK( 14 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat1 = FT_NEXT_USHORT( p ); + ValueFormat2 = FT_NEXT_USHORT( p ); + ClassDef1 = FT_NEXT_USHORT( p ); + ClassDef2 = FT_NEXT_USHORT( p ); + ClassCount1 = FT_NEXT_USHORT( p ); + ClassCount2 = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ClassCount1 = %d)\n", ClassCount1 )); + OTV_TRACE(( " (ClassCount2 = %d)\n", ClassCount2 )); + + len_value1 = otv_value_length( ValueFormat1 ); + len_value2 = otv_value_length( ValueFormat2 ); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + otv_ClassDef_validate( table + ClassDef1, valid ); + otv_ClassDef_validate( table + ClassDef2, valid ); + + OTV_LIMIT_CHECK( ClassCount1 * ClassCount2 * + ( len_value1 + len_value2 ) ); + + /* Class1Record */ + for ( ; ClassCount1 > 0; ClassCount1-- ) + { + /* Class2Record */ + for ( count = ClassCount2; count > 0; count-- ) + { + if ( ValueFormat1 ) + /* Value1 */ + otv_ValueRecord_validate( p, ValueFormat1, valid ); + p += len_value1; + + if ( ValueFormat2 ) + /* Value2 */ + otv_ValueRecord_validate( p, ValueFormat2, valid ); + p += len_value2; + } + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 3 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_CursivePos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "CursivePos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: /* CursivePosFormat1 */ + { + FT_UInt table_size; + FT_UInt Coverage, EntryExitCount; + + OTV_OPTIONAL_TABLE( EntryAnchor ); + OTV_OPTIONAL_TABLE( ExitAnchor ); + + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + EntryExitCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (EntryExitCount = %d)\n", EntryExitCount )); + + otv_Coverage_validate( table + Coverage, valid, EntryExitCount ); + + OTV_LIMIT_CHECK( EntryExitCount * 4 ); + + table_size = EntryExitCount * 4 + 4; + + /* EntryExitRecord */ + for ( ; EntryExitCount > 0; EntryExitCount-- ) + { + OTV_OPTIONAL_OFFSET( EntryAnchor ); + OTV_OPTIONAL_OFFSET( ExitAnchor ); + + OTV_SIZE_CHECK( EntryAnchor ); + if ( EntryAnchor ) + otv_Anchor_validate( table + EntryAnchor, valid ); + + OTV_SIZE_CHECK( ExitAnchor ); + if ( ExitAnchor ) + otv_Anchor_validate( table + ExitAnchor, valid ); + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 4 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* UNDOCUMENTED (in OpenType 1.5): */ + /* BaseRecord tables can contain NULL pointers. */ + + /* sets valid->extra2 (1) */ + + static void + otv_MarkBasePos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "MarkBasePos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + valid->extra2 = 1; + OTV_NEST2( MarkBasePosFormat1, BaseArray ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 5 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra2 (1) */ + + static void + otv_MarkLigPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "MarkLigPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + valid->extra2 = 1; + OTV_NEST3( MarkLigPosFormat1, LigatureArray, LigatureAttach ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 6 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra2 (0) */ + + static void + otv_MarkMarkPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "MarkMarkPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + valid->extra2 = 0; + OTV_NEST2( MarkMarkPosFormat1, Mark2Array ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 7 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ContextPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "ContextPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ContextPosFormat1, PosRuleSet, PosRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ContextPosFormat2, PosClassSet, PosClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ContextPosFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 8 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ChainContextPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "ChainContextPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ChainContextPosFormat1, + ChainPosRuleSet, ChainPosRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ChainContextPosFormat2, + ChainPosClassSet, ChainPosClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ChainContextPosFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 9 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->type_funcs */ + + static void + otv_ExtensionPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "ExtensionPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: /* ExtensionPosFormat1 */ + { + FT_UInt ExtensionLookupType; + FT_ULong ExtensionOffset; + OTV_Validate_Func validate; + + + OTV_LIMIT_CHECK( 6 ); + ExtensionLookupType = FT_NEXT_USHORT( p ); + ExtensionOffset = FT_NEXT_ULONG( p ); + + if ( ExtensionLookupType == 0 || ExtensionLookupType >= 9 ) + FT_INVALID_DATA; + + validate = valid->type_funcs[ExtensionLookupType - 1]; + validate( table + ExtensionOffset, valid ); + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + static const OTV_Validate_Func otv_gpos_validate_funcs[9] = + { + otv_SinglePos_validate, + otv_PairPos_validate, + otv_CursivePos_validate, + otv_MarkBasePos_validate, + otv_MarkLigPos_validate, + otv_MarkMarkPos_validate, + otv_ContextPos_validate, + otv_ChainContextPos_validate, + otv_ExtensionPos_validate + }; + + + /* sets valid->type_count */ + /* sets valid->type_funcs */ + + FT_LOCAL_DEF( void ) + otv_GPOS_subtable_validate( FT_Bytes table, + OTV_Validator valid ) + { + valid->type_count = 9; + valid->type_funcs = (OTV_Validate_Func*)otv_gpos_validate_funcs; + + otv_Lookup_validate( table, valid ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_GPOS_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt ScriptList, FeatureList, LookupList; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating GPOS table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 10 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + ScriptList = FT_NEXT_USHORT( p ); + FeatureList = FT_NEXT_USHORT( p ); + LookupList = FT_NEXT_USHORT( p ); + + valid->type_count = 9; + valid->type_funcs = (OTV_Validate_Func*)otv_gpos_validate_funcs; + valid->glyph_count = glyph_count; + + otv_LookupList_validate( table + LookupList, + valid ); + otv_FeatureList_validate( table + FeatureList, table + LookupList, + valid ); + otv_ScriptList_validate( table + ScriptList, table + FeatureList, + valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.h b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.h new file mode 100644 index 000000000..14ca40826 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgpos.h @@ -0,0 +1,36 @@ +/***************************************************************************/ +/* */ +/* otvgpos.h */ +/* */ +/* OpenType GPOS table validator (specification). */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVGPOS_H__ +#define __OTVGPOS_H__ + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + otv_GPOS_subtable_validate( FT_Bytes table, + OTV_Validator valid ); + + +FT_END_HEADER + +#endif /* __OTVGPOS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvgsub.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgsub.c new file mode 100644 index 000000000..ed499d1e9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvgsub.c @@ -0,0 +1,585 @@ +/***************************************************************************/ +/* */ +/* otvgsub.c */ +/* */ +/* OpenType GSUB table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvgsub + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 1 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->glyph_count */ + + static void + otv_SingleSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "SingleSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: /* SingleSubstFormat1 */ + { + FT_Bytes Coverage; + FT_Int DeltaGlyphID; + FT_Long idx; + + + OTV_LIMIT_CHECK( 4 ); + Coverage = table + FT_NEXT_USHORT( p ); + DeltaGlyphID = FT_NEXT_SHORT( p ); + + otv_Coverage_validate( Coverage, valid, -1 ); + + idx = otv_Coverage_get_first( Coverage ) + DeltaGlyphID; + if ( idx < 0 ) + FT_INVALID_DATA; + + idx = otv_Coverage_get_last( Coverage ) + DeltaGlyphID; + if ( (FT_UInt)idx >= valid->glyph_count ) + FT_INVALID_DATA; + } + break; + + case 2: /* SingleSubstFormat2 */ + { + FT_UInt Coverage, GlyphCount; + + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + otv_Coverage_validate( table + Coverage, valid, GlyphCount ); + + OTV_LIMIT_CHECK( GlyphCount * 2 ); + + /* Substitute */ + for ( ; GlyphCount > 0; GlyphCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 2 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (glyph count) */ + + static void + otv_MultipleSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "MultipleSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + valid->extra1 = valid->glyph_count; + OTV_NEST2( MultipleSubstFormat1, Sequence ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 3 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (glyph count) */ + + static void + otv_AlternateSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "AlternateSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + valid->extra1 = valid->glyph_count; + OTV_NEST2( AlternateSubstFormat1, AlternateSet ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 4 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define LigatureFunc otv_Ligature_validate + + /* uses valid->glyph_count */ + + static void + otv_Ligature_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LigatureGlyph, CompCount; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + LigatureGlyph = FT_NEXT_USHORT( p ); + if ( LigatureGlyph >= valid->glyph_count ) + FT_INVALID_DATA; + + CompCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (CompCount = %d)\n", CompCount )); + + if ( CompCount == 0 ) + FT_INVALID_DATA; + + CompCount--; + + OTV_LIMIT_CHECK( CompCount * 2 ); /* Component */ + + /* no need to check the Component glyph indices */ + + OTV_EXIT; + } + + + static void + otv_LigatureSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "LigatureSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + OTV_NEST3( LigatureSubstFormat1, LigatureSet, Ligature ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 5 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ContextSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "ContextSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ContextSubstFormat1, SubRuleSet, SubRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ContextSubstFormat2, SubClassSet, SubClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ContextSubstFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 6 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ChainContextSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "ChainContextSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ChainContextSubstFormat1, + ChainSubRuleSet, ChainSubRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ChainContextSubstFormat2, + ChainSubClassSet, ChainSubClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ChainContextSubstFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 7 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->type_funcs */ + + static void + otv_ExtensionSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "ExtensionSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: /* ExtensionSubstFormat1 */ + { + FT_UInt ExtensionLookupType; + FT_ULong ExtensionOffset; + OTV_Validate_Func validate; + + + OTV_LIMIT_CHECK( 6 ); + ExtensionLookupType = FT_NEXT_USHORT( p ); + ExtensionOffset = FT_NEXT_ULONG( p ); + + if ( ExtensionLookupType == 0 || + ExtensionLookupType == 7 || + ExtensionLookupType > 8 ) + FT_INVALID_DATA; + + validate = valid->type_funcs[ExtensionLookupType - 1]; + validate( table + ExtensionOffset, valid ); + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 8 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->glyph_count */ + + static void + otv_ReverseChainSingleSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table, Coverage; + FT_UInt SubstFormat; + FT_UInt BacktrackGlyphCount, LookaheadGlyphCount, GlyphCount; + + + OTV_NAME_ENTER( "ReverseChainSingleSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: /* ReverseChainSingleSubstFormat1 */ + OTV_LIMIT_CHECK( 4 ); + Coverage = table + FT_NEXT_USHORT( p ); + BacktrackGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BacktrackGlyphCount = %d)\n", BacktrackGlyphCount )); + + otv_Coverage_validate( Coverage, valid, -1 ); + + OTV_LIMIT_CHECK( BacktrackGlyphCount * 2 + 2 ); + + for ( ; BacktrackGlyphCount > 0; BacktrackGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + LookaheadGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookaheadGlyphCount = %d)\n", LookaheadGlyphCount )); + + OTV_LIMIT_CHECK( LookaheadGlyphCount * 2 + 2 ); + + for ( ; LookaheadGlyphCount > 0; LookaheadGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + if ( GlyphCount != otv_Coverage_get_count( Coverage ) ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( GlyphCount * 2 ); + + /* Substitute */ + for ( ; GlyphCount > 0; GlyphCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->glyph_count ) + FT_INVALID_DATA; + + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + static const OTV_Validate_Func otv_gsub_validate_funcs[8] = + { + otv_SingleSubst_validate, + otv_MultipleSubst_validate, + otv_AlternateSubst_validate, + otv_LigatureSubst_validate, + otv_ContextSubst_validate, + otv_ChainContextSubst_validate, + otv_ExtensionSubst_validate, + otv_ReverseChainSingleSubst_validate + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->type_count */ + /* sets valid->type_funcs */ + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_GSUB_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt ScriptList, FeatureList, LookupList; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating GSUB table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 10 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + ScriptList = FT_NEXT_USHORT( p ); + FeatureList = FT_NEXT_USHORT( p ); + LookupList = FT_NEXT_USHORT( p ); + + valid->type_count = 8; + valid->type_funcs = (OTV_Validate_Func*)otv_gsub_validate_funcs; + valid->glyph_count = glyph_count; + + otv_LookupList_validate( table + LookupList, + valid ); + otv_FeatureList_validate( table + FeatureList, table + LookupList, + valid ); + otv_ScriptList_validate( table + ScriptList, table + FeatureList, + valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvjstf.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvjstf.c new file mode 100644 index 000000000..a616a2343 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvjstf.c @@ -0,0 +1,258 @@ +/***************************************************************************/ +/* */ +/* otvjstf.c */ +/* */ +/* OpenType JSTF table validation (body). */ +/* */ +/* Copyright 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" +#include "otvgpos.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvjstf + + +#define JstfPriorityFunc otv_JstfPriority_validate +#define JstfLookupFunc otv_GPOS_subtable_validate + + /* uses valid->extra1 (GSUB lookup count) */ + /* uses valid->extra2 (GPOS lookup count) */ + /* sets valid->extra1 (counter) */ + + static void + otv_JstfPriority_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt gsub_lookup_count, gpos_lookup_count; + + OTV_OPTIONAL_TABLE( ShrinkageEnableGSUB ); + OTV_OPTIONAL_TABLE( ShrinkageDisableGSUB ); + OTV_OPTIONAL_TABLE( ShrinkageEnableGPOS ); + OTV_OPTIONAL_TABLE( ShrinkageDisableGPOS ); + OTV_OPTIONAL_TABLE( ExtensionEnableGSUB ); + OTV_OPTIONAL_TABLE( ExtensionDisableGSUB ); + OTV_OPTIONAL_TABLE( ExtensionEnableGPOS ); + OTV_OPTIONAL_TABLE( ExtensionDisableGPOS ); + OTV_OPTIONAL_TABLE( ShrinkageJstfMax ); + OTV_OPTIONAL_TABLE( ExtensionJstfMax ); + + + OTV_ENTER; + OTV_TRACE(( "JstfPriority table\n" )); + + OTV_LIMIT_CHECK( 20 ); + + gsub_lookup_count = valid->extra1; + gpos_lookup_count = valid->extra2; + + table_size = 20; + + valid->extra1 = gsub_lookup_count; + + OTV_OPTIONAL_OFFSET( ShrinkageEnableGSUB ); + OTV_SIZE_CHECK( ShrinkageEnableGSUB ); + if ( ShrinkageEnableGSUB ) + otv_x_ux( table + ShrinkageEnableGSUB, valid ); + + OTV_OPTIONAL_OFFSET( ShrinkageDisableGSUB ); + OTV_SIZE_CHECK( ShrinkageDisableGSUB ); + if ( ShrinkageDisableGSUB ) + otv_x_ux( table + ShrinkageDisableGSUB, valid ); + + valid->extra1 = gpos_lookup_count; + + OTV_OPTIONAL_OFFSET( ShrinkageEnableGPOS ); + OTV_SIZE_CHECK( ShrinkageEnableGPOS ); + if ( ShrinkageEnableGPOS ) + otv_x_ux( table + ShrinkageEnableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ShrinkageDisableGPOS ); + OTV_SIZE_CHECK( ShrinkageDisableGPOS ); + if ( ShrinkageDisableGPOS ) + otv_x_ux( table + ShrinkageDisableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ShrinkageJstfMax ); + OTV_SIZE_CHECK( ShrinkageJstfMax ); + if ( ShrinkageJstfMax ) + { + /* XXX: check lookup types? */ + OTV_NEST2( JstfMax, JstfLookup ); + OTV_RUN( table + ShrinkageJstfMax, valid ); + } + + valid->extra1 = gsub_lookup_count; + + OTV_OPTIONAL_OFFSET( ExtensionEnableGSUB ); + OTV_SIZE_CHECK( ExtensionEnableGSUB ); + if ( ExtensionEnableGSUB ) + otv_x_ux( table + ExtensionEnableGSUB, valid ); + + OTV_OPTIONAL_OFFSET( ExtensionDisableGSUB ); + OTV_SIZE_CHECK( ExtensionDisableGSUB ); + if ( ExtensionDisableGSUB ) + otv_x_ux( table + ExtensionDisableGSUB, valid ); + + valid->extra1 = gpos_lookup_count; + + OTV_OPTIONAL_OFFSET( ExtensionEnableGPOS ); + OTV_SIZE_CHECK( ExtensionEnableGPOS ); + if ( ExtensionEnableGPOS ) + otv_x_ux( table + ExtensionEnableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ExtensionDisableGPOS ); + OTV_SIZE_CHECK( ExtensionDisableGPOS ); + if ( ExtensionDisableGPOS ) + otv_x_ux( table + ExtensionDisableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ExtensionJstfMax ); + OTV_SIZE_CHECK( ExtensionJstfMax ); + if ( ExtensionJstfMax ) + { + /* XXX: check lookup types? */ + OTV_NEST2( JstfMax, JstfLookup ); + OTV_RUN( table + ExtensionJstfMax, valid ); + } + + valid->extra1 = gsub_lookup_count; + valid->extra2 = gpos_lookup_count; + + OTV_EXIT; + } + + + /* sets valid->extra (glyph count) */ + /* sets valid->func1 (otv_JstfPriority_validate) */ + + static void + otv_JstfScript_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt JstfLangSysCount; + + OTV_OPTIONAL_TABLE( ExtGlyph ); + OTV_OPTIONAL_TABLE( DefJstfLangSys ); + + + OTV_NAME_ENTER( "JstfScript" ); + + OTV_LIMIT_CHECK( 6 ); + OTV_OPTIONAL_OFFSET( ExtGlyph ); + OTV_OPTIONAL_OFFSET( DefJstfLangSys ); + JstfLangSysCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (JstfLangSysCount = %d)\n", JstfLangSysCount )); + + table_size = JstfLangSysCount * 6 + 6; + + OTV_SIZE_CHECK( ExtGlyph ); + if ( ExtGlyph ) + { + valid->extra1 = valid->glyph_count; + OTV_NEST1( ExtenderGlyph ); + OTV_RUN( table + ExtGlyph, valid ); + } + + OTV_SIZE_CHECK( DefJstfLangSys ); + if ( DefJstfLangSys ) + { + OTV_NEST2( JstfLangSys, JstfPriority ); + OTV_RUN( table + DefJstfLangSys, valid ); + } + + OTV_LIMIT_CHECK( 6 * JstfLangSysCount ); + + /* JstfLangSysRecord */ + OTV_NEST2( JstfLangSys, JstfPriority ); + for ( ; JstfLangSysCount > 0; JstfLangSysCount-- ) + { + p += 4; /* skip JstfLangSysTag */ + + OTV_RUN( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (GSUB lookup count) */ + /* sets valid->extra2 (GPOS lookup count) */ + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_JSTF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt JstfScriptCount; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating JSTF table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 6 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + JstfScriptCount = FT_NEXT_USHORT( p ); + + FT_TRACE3(( " (JstfScriptCount = %d)\n", JstfScriptCount )); + + OTV_LIMIT_CHECK( JstfScriptCount * 6 ); + + if ( gsub ) + valid->extra1 = otv_GSUBGPOS_get_Lookup_count( gsub ); + else + valid->extra1 = 0; + + if ( gpos ) + valid->extra2 = otv_GSUBGPOS_get_Lookup_count( gpos ); + else + valid->extra2 = 0; + + valid->glyph_count = glyph_count; + + /* JstfScriptRecord */ + for ( ; JstfScriptCount > 0; JstfScriptCount-- ) + { + p += 4; /* skip JstfScriptTag */ + + /* JstfScript */ + otv_JstfScript_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvmath.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvmath.c new file mode 100644 index 000000000..96f841f2a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvmath.c @@ -0,0 +1,453 @@ +/***************************************************************************/ +/* */ +/* otvmath.c */ +/* */ +/* OpenType MATH table validation (body). */ +/* */ +/* Copyright 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* Written by George Williams. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" +#include "otvgpos.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvmath + + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH TYPOGRAPHIC CONSTANTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathConstants_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt i; + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + + OTV_NAME_ENTER( "MathConstants" ); + + /* 56 constants, 51 have device tables */ + OTV_LIMIT_CHECK( 2 * ( 56 + 51 ) ); + table_size = 2 * ( 56 + 51 ); + + p += 4 * 2; /* First 4 constants have no device tables */ + for ( i = 0; i < 51; ++i ) + { + p += 2; /* skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH ITALICS CORRECTION *****/ + /***** MATH TOP ACCENT ATTACHMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathItalicsCorrectionInfo_validate( FT_Bytes table, + OTV_Validator valid, + FT_Int isItalic ) + { + FT_Bytes p = table; + FT_UInt i, cnt, table_size ; + + OTV_OPTIONAL_TABLE( Coverage ); + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + FT_UNUSED( isItalic ); /* only used if tracing is active */ + + + OTV_NAME_ENTER( isItalic ? "MathItalicsCorrectionInfo" + : "MathTopAccentAttachment" ); + + OTV_LIMIT_CHECK( 4 ); + + OTV_OPTIONAL_OFFSET( Coverage ); + cnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 4 * cnt ); + table_size = 4 + 4 * cnt; + + OTV_SIZE_CHECK( Coverage ); + otv_Coverage_validate( table + Coverage, valid, cnt ); + + for ( i = 0; i < cnt; ++i ) + { + p += 2; /* Skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH KERNING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathKern_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt i, cnt, table_size; + + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + + /* OTV_NAME_ENTER( "MathKern" );*/ + + OTV_LIMIT_CHECK( 2 ); + + cnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 4 * cnt + 2 ); + table_size = 4 + 4 * cnt; + + /* Heights */ + for ( i = 0; i < cnt; ++i ) + { + p += 2; /* Skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + /* One more Kerning value */ + for ( i = 0; i < cnt + 1; ++i ) + { + p += 2; /* Skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + OTV_EXIT; + } + + + static void + otv_MathKernInfo_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt i, j, cnt, table_size; + + OTV_OPTIONAL_TABLE( Coverage ); + OTV_OPTIONAL_TABLE( MKRecordOffset ); + + + OTV_NAME_ENTER( "MathKernInfo" ); + + OTV_LIMIT_CHECK( 4 ); + + OTV_OPTIONAL_OFFSET( Coverage ); + cnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 8 * cnt ); + table_size = 4 + 8 * cnt; + + OTV_SIZE_CHECK( Coverage ); + otv_Coverage_validate( table + Coverage, valid, cnt ); + + for ( i = 0; i < cnt; ++i ) + { + for ( j = 0; j < 4; ++j ) + { + OTV_OPTIONAL_OFFSET( MKRecordOffset ); + OTV_SIZE_CHECK( MKRecordOffset ); + if ( MKRecordOffset ) + otv_MathKern_validate( table + MKRecordOffset, valid ); + } + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH GLYPH INFO *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathGlyphInfo_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt MathItalicsCorrectionInfo, MathTopAccentAttachment; + FT_UInt ExtendedShapeCoverage, MathKernInfo; + + + OTV_NAME_ENTER( "MathGlyphInfo" ); + + OTV_LIMIT_CHECK( 8 ); + + MathItalicsCorrectionInfo = FT_NEXT_USHORT( p ); + MathTopAccentAttachment = FT_NEXT_USHORT( p ); + ExtendedShapeCoverage = FT_NEXT_USHORT( p ); + MathKernInfo = FT_NEXT_USHORT( p ); + + if ( MathItalicsCorrectionInfo ) + otv_MathItalicsCorrectionInfo_validate( + table + MathItalicsCorrectionInfo, valid, TRUE ); + + /* Italic correction and Top Accent Attachment have the same format */ + if ( MathTopAccentAttachment ) + otv_MathItalicsCorrectionInfo_validate( + table + MathTopAccentAttachment, valid, FALSE ); + + if ( ExtendedShapeCoverage ) + { + OTV_NAME_ENTER( "ExtendedShapeCoverage" ); + otv_Coverage_validate( table + ExtendedShapeCoverage, valid, -1 ); + OTV_EXIT; + } + + if ( MathKernInfo ) + otv_MathKernInfo_validate( table + MathKernInfo, valid ); + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH GLYPH CONSTRUCTION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_GlyphAssembly_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt pcnt, table_size; + FT_UInt i; + + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + + /* OTV_NAME_ENTER( "GlyphAssembly" ); */ + + OTV_LIMIT_CHECK( 6 ); + + p += 2; /* Skip the Italics Correction value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + pcnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 8 * pcnt ); + table_size = 6 + 8 * pcnt; + + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + + for ( i = 0; i < pcnt; ++i ) + { + FT_UInt gid; + + + gid = FT_NEXT_USHORT( p ); + if ( gid >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + p += 2*4; /* skip the Start, End, Full, and Flags fields */ + } + + /* OTV_EXIT; */ + } + + + static void + otv_MathGlyphConstruction_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt vcnt, table_size; + FT_UInt i; + + OTV_OPTIONAL_TABLE( GlyphAssembly ); + + + /* OTV_NAME_ENTER( "MathGlyphConstruction" ); */ + + OTV_LIMIT_CHECK( 4 ); + + OTV_OPTIONAL_OFFSET( GlyphAssembly ); + vcnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 4 * vcnt ); + table_size = 4 + 4 * vcnt; + + for ( i = 0; i < vcnt; ++i ) + { + FT_UInt gid; + + + gid = FT_NEXT_USHORT( p ); + if ( gid >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + p += 2; /* skip the size */ + } + + OTV_SIZE_CHECK( GlyphAssembly ); + if ( GlyphAssembly ) + otv_GlyphAssembly_validate( table+GlyphAssembly, valid ); + + /* OTV_EXIT; */ + } + + + static void + otv_MathVariants_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt vcnt, hcnt, i, table_size; + + OTV_OPTIONAL_TABLE( VCoverage ); + OTV_OPTIONAL_TABLE( HCoverage ); + OTV_OPTIONAL_TABLE( Offset ); + + + OTV_NAME_ENTER( "MathVariants" ); + + OTV_LIMIT_CHECK( 10 ); + + p += 2; /* Skip the MinConnectorOverlap constant */ + OTV_OPTIONAL_OFFSET( VCoverage ); + OTV_OPTIONAL_OFFSET( HCoverage ); + vcnt = FT_NEXT_USHORT( p ); + hcnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 2 * vcnt + 2 * hcnt ); + table_size = 10 + 2 * vcnt + 2 * hcnt; + + OTV_SIZE_CHECK( VCoverage ); + if ( VCoverage ) + otv_Coverage_validate( table + VCoverage, valid, vcnt ); + + OTV_SIZE_CHECK( HCoverage ); + if ( HCoverage ) + otv_Coverage_validate( table + HCoverage, valid, hcnt ); + + for ( i = 0; i < vcnt; ++i ) + { + OTV_OPTIONAL_OFFSET( Offset ); + OTV_SIZE_CHECK( Offset ); + otv_MathGlyphConstruction_validate( table + Offset, valid ); + } + + for ( i = 0; i < hcnt; ++i ) + { + OTV_OPTIONAL_OFFSET( Offset ); + OTV_SIZE_CHECK( Offset ); + otv_MathGlyphConstruction_validate( table + Offset, valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_MATH_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt MathConstants, MathGlyphInfo, MathVariants; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating MATH table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 10 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + MathConstants = FT_NEXT_USHORT( p ); + MathGlyphInfo = FT_NEXT_USHORT( p ); + MathVariants = FT_NEXT_USHORT( p ); + + valid->glyph_count = glyph_count; + + otv_MathConstants_validate( table + MathConstants, + valid ); + otv_MathGlyphInfo_validate( table + MathGlyphInfo, + valid ); + otv_MathVariants_validate ( table + MathVariants, + valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.c b/uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.c new file mode 100644 index 000000000..b98275fec --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.c @@ -0,0 +1,282 @@ +/***************************************************************************/ +/* */ +/* otvmod.c */ +/* */ +/* FreeType's OpenType validation module implementation (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_TAGS_H +#include FT_OPENTYPE_VALIDATE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_OPENTYPE_VALIDATE_H + +#include "otvmod.h" +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvmodule + + + static FT_Error + otv_load_table( FT_Face face, + FT_Tag tag, + FT_Byte* volatile* table, + FT_ULong* table_len ) + { + FT_Error error; + FT_Memory memory = FT_FACE_MEMORY( face ); + + + error = FT_Load_Sfnt_Table( face, tag, 0, NULL, table_len ); + if ( error == OTV_Err_Table_Missing ) + return OTV_Err_Ok; + if ( error ) + goto Exit; + + if ( FT_ALLOC( *table, *table_len ) ) + goto Exit; + + error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); + + Exit: + return error; + } + + + static FT_Error + otv_validate( FT_Face volatile face, + FT_UInt ot_flags, + FT_Bytes *ot_base, + FT_Bytes *ot_gdef, + FT_Bytes *ot_gpos, + FT_Bytes *ot_gsub, + FT_Bytes *ot_jstf ) + { + FT_Error error = OTV_Err_Ok; + FT_Byte* volatile base; + FT_Byte* volatile gdef; + FT_Byte* volatile gpos; + FT_Byte* volatile gsub; + FT_Byte* volatile jstf; + FT_Byte* volatile math; + FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf; + FT_ULong len_math; + FT_UInt num_glyphs = (FT_UInt)face->num_glyphs; + FT_ValidatorRec volatile valid; + + + base = gdef = gpos = gsub = jstf = math = NULL; + len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0; + + /* + * XXX: OpenType tables cannot handle 32-bit glyph index, + * although broken TrueType can have 32-bit glyph index. + */ + if ( face->num_glyphs > 0xFFFFL ) + { + FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ", + face->num_glyphs )); + FT_TRACE1(( "are not handled by OpenType tables\n" )); + num_glyphs = 0xFFFF; + } + + /* load tables */ + + if ( ot_flags & FT_VALIDATE_BASE ) + { + error = otv_load_table( face, TTAG_BASE, &base, &len_base ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_GDEF ) + { + error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_GPOS ) + { + error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_GSUB ) + { + error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_JSTF ) + { + error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_MATH ) + { + error = otv_load_table( face, TTAG_MATH, &math, &len_math ); + if ( error ) + goto Exit; + } + + /* validate tables */ + + if ( base ) + { + ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_BASE_validate( base, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( gpos ) + { + ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_GPOS_validate( gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( gsub ) + { + ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_GSUB_validate( gsub, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( gdef ) + { + ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_GDEF_validate( gdef, gsub, gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( jstf ) + { + ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_JSTF_validate( jstf, gsub, gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( math ) + { + ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_MATH_validate( math, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + *ot_base = (FT_Bytes)base; + *ot_gdef = (FT_Bytes)gdef; + *ot_gpos = (FT_Bytes)gpos; + *ot_gsub = (FT_Bytes)gsub; + *ot_jstf = (FT_Bytes)jstf; + + Exit: + if ( error ) + { + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( base ); + FT_FREE( gdef ); + FT_FREE( gpos ); + FT_FREE( gsub ); + FT_FREE( jstf ); + } + + { + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( math ); /* Can't return this as API is frozen */ + } + + return error; + } + + + static + const FT_Service_OTvalidateRec otvalid_interface = + { + otv_validate + }; + + + static + const FT_ServiceDescRec otvalid_services[] = + { + { FT_SERVICE_ID_OPENTYPE_VALIDATE, &otvalid_interface }, + { NULL, NULL } + }; + + + static FT_Pointer + otvalid_get_service( FT_Module module, + const char* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( otvalid_services, service_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Module_Class otv_module_class = + { + 0, + sizeof( FT_ModuleRec ), + "otvalid", + 0x10000L, + 0x20000L, + + 0, /* module-specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) otvalid_get_service + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.h b/uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.h new file mode 100644 index 000000000..8222b1e41 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/otvalid/otvmod.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* otvmod.h */ +/* */ +/* FreeType's OpenType validation module implementation */ +/* (specification). */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVMOD_H__ +#define __OTVMOD_H__ + + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Module_Class ) otv_module_class; + + +FT_END_HEADER + +#endif /* __OTVMOD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcf.c b/uppsrc/plugin/FT_fontsys/src/pcf/pcf.c new file mode 100644 index 000000000..3f1d92c79 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcf.c @@ -0,0 +1,36 @@ +/* pcf.c + + FreeType font driver for pcf fonts + + Copyright 2000-2001, 2003 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + + +#include <freetype/ft2build.h> +#include "pcfutil.c" +#include "pcfread.c" +#include "pcfdrivr.c" + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcf.h b/uppsrc/plugin/FT_fontsys/src/pcf/pcf.h new file mode 100644 index 000000000..46ec1237b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcf.h @@ -0,0 +1,237 @@ +/* pcf.h + + FreeType font driver for pcf fonts + + Copyright (C) 2000, 2001, 2002, 2003, 2006, 2010 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCF_H__ +#define __PCF_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + typedef struct PCF_TableRec_ + { + FT_ULong type; + FT_ULong format; + FT_ULong size; + FT_ULong offset; + + } PCF_TableRec, *PCF_Table; + + + typedef struct PCF_TocRec_ + { + FT_ULong version; + FT_ULong count; + PCF_Table tables; + + } PCF_TocRec, *PCF_Toc; + + + typedef struct PCF_ParsePropertyRec_ + { + FT_Long name; + FT_Byte isString; + FT_Long value; + + } PCF_ParsePropertyRec, *PCF_ParseProperty; + + + typedef struct PCF_PropertyRec_ + { + FT_String* name; + FT_Byte isString; + + union + { + FT_String* atom; + FT_Long l; + FT_ULong ul; + + } value; + + } PCF_PropertyRec, *PCF_Property; + + + typedef struct PCF_Compressed_MetricRec_ + { + FT_Byte leftSideBearing; + FT_Byte rightSideBearing; + FT_Byte characterWidth; + FT_Byte ascent; + FT_Byte descent; + + } PCF_Compressed_MetricRec, *PCF_Compressed_Metric; + + + typedef struct PCF_MetricRec_ + { + FT_Short leftSideBearing; + FT_Short rightSideBearing; + FT_Short characterWidth; + FT_Short ascent; + FT_Short descent; + FT_Short attributes; + FT_ULong bits; + + } PCF_MetricRec, *PCF_Metric; + + + typedef struct PCF_AccelRec_ + { + FT_Byte noOverlap; + FT_Byte constantMetrics; + FT_Byte terminalFont; + FT_Byte constantWidth; + FT_Byte inkInside; + FT_Byte inkMetrics; + FT_Byte drawDirection; + FT_Long fontAscent; + FT_Long fontDescent; + FT_Long maxOverlap; + PCF_MetricRec minbounds; + PCF_MetricRec maxbounds; + PCF_MetricRec ink_minbounds; + PCF_MetricRec ink_maxbounds; + + } PCF_AccelRec, *PCF_Accel; + + + typedef struct PCF_EncodingRec_ + { + FT_Long enc; + FT_UShort glyph; + + } PCF_EncodingRec, *PCF_Encoding; + + + typedef struct PCF_FaceRec_ + { + FT_FaceRec root; + + FT_StreamRec comp_stream; + FT_Stream comp_source; + + char* charset_encoding; + char* charset_registry; + + PCF_TocRec toc; + PCF_AccelRec accel; + + int nprops; + PCF_Property properties; + + FT_Long nmetrics; + PCF_Metric metrics; + FT_Long nencodings; + PCF_Encoding encodings; + + FT_Short defaultChar; + + FT_ULong bitmapsFormat; + + FT_CharMap charmap_handle; + FT_CharMapRec charmap; /* a single charmap per face */ + + } PCF_FaceRec, *PCF_Face; + + + /* macros for pcf font format */ + +#define LSBFirst 0 +#define MSBFirst 1 + +#define PCF_FILE_VERSION ( ( 'p' << 24 ) | \ + ( 'c' << 16 ) | \ + ( 'f' << 8 ) | 1 ) +#define PCF_FORMAT_MASK 0xFFFFFF00UL + +#define PCF_DEFAULT_FORMAT 0x00000000UL +#define PCF_INKBOUNDS 0x00000200UL +#define PCF_ACCEL_W_INKBOUNDS 0x00000100UL +#define PCF_COMPRESSED_METRICS 0x00000100UL + +#define PCF_FORMAT_MATCH( a, b ) \ + ( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) ) + +#define PCF_GLYPH_PAD_MASK ( 3 << 0 ) +#define PCF_BYTE_MASK ( 1 << 2 ) +#define PCF_BIT_MASK ( 1 << 3 ) +#define PCF_SCAN_UNIT_MASK ( 3 << 4 ) + +#define PCF_BYTE_ORDER( f ) \ + ( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst ) +#define PCF_BIT_ORDER( f ) \ + ( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst ) +#define PCF_GLYPH_PAD_INDEX( f ) \ + ( (f) & PCF_GLYPH_PAD_MASK ) +#define PCF_GLYPH_PAD( f ) \ + ( 1 << PCF_GLYPH_PAD_INDEX( f ) ) +#define PCF_SCAN_UNIT_INDEX( f ) \ + ( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 ) +#define PCF_SCAN_UNIT( f ) \ + ( 1 << PCF_SCAN_UNIT_INDEX( f ) ) +#define PCF_FORMAT_BITS( f ) \ + ( (f) & ( PCF_GLYPH_PAD_MASK | \ + PCF_BYTE_MASK | \ + PCF_BIT_MASK | \ + PCF_SCAN_UNIT_MASK ) ) + +#define PCF_SIZE_TO_INDEX( s ) ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 ) +#define PCF_INDEX_TO_SIZE( b ) ( 1 << b ) + +#define PCF_FORMAT( bit, byte, glyph, scan ) \ + ( ( PCF_SIZE_TO_INDEX( scan ) << 4 ) | \ + ( ( (bit) == MSBFirst ? 1 : 0 ) << 3 ) | \ + ( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \ + ( PCF_SIZE_TO_INDEX( glyph ) << 0 ) ) + +#define PCF_PROPERTIES ( 1 << 0 ) +#define PCF_ACCELERATORS ( 1 << 1 ) +#define PCF_METRICS ( 1 << 2 ) +#define PCF_BITMAPS ( 1 << 3 ) +#define PCF_INK_METRICS ( 1 << 4 ) +#define PCF_BDF_ENCODINGS ( 1 << 5 ) +#define PCF_SWIDTHS ( 1 << 6 ) +#define PCF_GLYPH_NAMES ( 1 << 7 ) +#define PCF_BDF_ACCELERATORS ( 1 << 8 ) + +#define GLYPHPADOPTIONS 4 /* I'm not sure about this */ + + FT_LOCAL( FT_Error ) + pcf_load_font( FT_Stream, + PCF_Face ); + +FT_END_HEADER + +#endif /* __PCF_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.c b/uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.c new file mode 100644 index 000000000..462a35e23 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.c @@ -0,0 +1,718 @@ +/* pcfdrivr.c + + FreeType font driver for pcf files + + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, + 2010 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#include <freetype/ft2build.h> + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H +#include FT_GZIP_H +#include FT_LZW_H +#include FT_BZIP2_H +#include FT_ERRORS_H +#include FT_BDF_H +#include FT_TRUETYPE_IDS_H + +#include "pcf.h" +#include "pcfdrivr.h" +#include "pcfread.h" + +#include "pcferror.h" +#include "pcfutil.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pcfread + +#include FT_SERVICE_BDF_H +#include FT_SERVICE_XFREE86_NAME_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_pcfdriver + + + typedef struct PCF_CMapRec_ + { + FT_CMapRec root; + FT_UInt num_encodings; + PCF_Encoding encodings; + + } PCF_CMapRec, *PCF_CMap; + + + FT_CALLBACK_DEF( FT_Error ) + pcf_cmap_init( FT_CMap pcfcmap, /* PCF_CMap */ + FT_Pointer init_data ) + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + PCF_Face face = (PCF_Face)FT_CMAP_FACE( pcfcmap ); + + FT_UNUSED( init_data ); + + + cmap->num_encodings = (FT_UInt)face->nencodings; + cmap->encodings = face->encodings; + + return PCF_Err_Ok; + } + + + FT_CALLBACK_DEF( void ) + pcf_cmap_done( FT_CMap pcfcmap ) /* PCF_CMap */ + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + + + cmap->encodings = NULL; + cmap->num_encodings = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + pcf_cmap_char_index( FT_CMap pcfcmap, /* PCF_CMap */ + FT_UInt32 charcode ) + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + PCF_Encoding encodings = cmap->encodings; + FT_UInt min, max, mid; + FT_UInt result = 0; + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + result = encodings[mid].glyph + 1; + break; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt ) + pcf_cmap_char_next( FT_CMap pcfcmap, /* PCF_CMap */ + FT_UInt32 *acharcode ) + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + PCF_Encoding encodings = cmap->encodings; + FT_UInt min, max, mid; + FT_ULong charcode = *acharcode + 1; + FT_UInt result = 0; + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + result = encodings[mid].glyph + 1; + goto Exit; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + charcode = 0; + if ( min < cmap->num_encodings ) + { + charcode = encodings[min].enc; + result = encodings[min].glyph + 1; + } + + Exit: + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "pcf_cmap_char_next: charcode 0x%x > 32bit API" )); + *acharcode = 0; + /* XXX: result should be changed to indicate an overflow error */ + } + else + *acharcode = (FT_UInt32)charcode; + return result; + } + + + FT_CALLBACK_TABLE_DEF + const FT_CMap_ClassRec pcf_cmap_class = + { + sizeof ( PCF_CMapRec ), + pcf_cmap_init, + pcf_cmap_done, + pcf_cmap_char_index, + pcf_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + FT_CALLBACK_DEF( void ) + PCF_Face_Done( FT_Face pcfface ) /* PCF_Face */ + { + PCF_Face face = (PCF_Face)pcfface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + FT_FREE( face->encodings ); + FT_FREE( face->metrics ); + + /* free properties */ + { + PCF_Property prop; + FT_Int i; + + + if ( face->properties ) + { + for ( i = 0; i < face->nprops; i++ ) + { + prop = &face->properties[i]; + + if ( prop ) + { + FT_FREE( prop->name ); + if ( prop->isString ) + FT_FREE( prop->value.atom ); + } + } + } + FT_FREE( face->properties ); + } + + FT_FREE( face->toc.tables ); + FT_FREE( pcfface->family_name ); + FT_FREE( pcfface->style_name ); + FT_FREE( pcfface->available_sizes ); + FT_FREE( face->charset_encoding ); + FT_FREE( face->charset_registry ); + + FT_TRACE4(( "PCF_Face_Done: done face\n" )); + + /* close compressed stream if any */ + if ( pcfface->stream == &face->comp_stream ) + { + FT_Stream_Close( &face->comp_stream ); + pcfface->stream = face->comp_source; + } + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Face_Init( FT_Stream stream, + FT_Face pcfface, /* PCF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + PCF_Face face = (PCF_Face)pcfface; + FT_Error error = PCF_Err_Ok; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( face_index ); + + + error = pcf_load_font( stream, face ); + if ( error ) + { + PCF_Face_Done( pcfface ); + +#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \ + defined( FT_CONFIG_OPTION_USE_LZW ) || \ + defined( FT_CONFIG_OPTION_USE_BZIP2 ) + +#ifdef FT_CONFIG_OPTION_USE_ZLIB + { + FT_Error error2; + + + /* this didn't work, try gzip support! */ + error2 = FT_Stream_OpenGzip( &face->comp_stream, stream ); + if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature ) + goto Fail; + + error = error2; + } +#endif /* FT_CONFIG_OPTION_USE_ZLIB */ + +#ifdef FT_CONFIG_OPTION_USE_LZW + if ( error ) + { + FT_Error error3; + + + /* this didn't work, try LZW support! */ + error3 = FT_Stream_OpenLZW( &face->comp_stream, stream ); + if ( FT_ERROR_BASE( error3 ) == FT_Err_Unimplemented_Feature ) + goto Fail; + + error = error3; + } +#endif /* FT_CONFIG_OPTION_USE_LZW */ + +#ifdef FT_CONFIG_OPTION_USE_BZIP2 + if ( error ) + { + FT_Error error4; + + + /* this didn't work, try Bzip2 support! */ + error4 = FT_Stream_OpenBzip2( &face->comp_stream, stream ); + if ( FT_ERROR_BASE( error4 ) == FT_Err_Unimplemented_Feature ) + goto Fail; + + error = error4; + } +#endif /* FT_CONFIG_OPTION_USE_BZIP2 */ + + if ( error ) + goto Fail; + + face->comp_source = stream; + pcfface->stream = &face->comp_stream; + + stream = pcfface->stream; + + error = pcf_load_font( stream, face ); + if ( error ) + goto Fail; + +#else /* !(FT_CONFIG_OPTION_USE_ZLIB || + FT_CONFIG_OPTION_USE_LZW || + FT_CONFIG_OPTION_USE_BZIP2) */ + + goto Fail; + +#endif + } + + /* set up charmap */ + { + FT_String *charset_registry = face->charset_registry; + FT_String *charset_encoding = face->charset_encoding; + FT_Bool unicode_charmap = 0; + + + if ( charset_registry && charset_encoding ) + { + char* s = charset_registry; + + + /* Uh, oh, compare first letters manually to avoid dependency + on locales. */ + if ( ( s[0] == 'i' || s[0] == 'I' ) && + ( s[1] == 's' || s[1] == 'S' ) && + ( s[2] == 'o' || s[2] == 'O' ) ) + { + s += 3; + if ( !ft_strcmp( s, "10646" ) || + ( !ft_strcmp( s, "8859" ) && + !ft_strcmp( face->charset_encoding, "1" ) ) ) + unicode_charmap = 1; + } + } + + { + FT_CharMapRec charmap; + + + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_NONE; + /* initial platform/encoding should indicate unset status? */ + charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; + charmap.encoding_id = TT_APPLE_ID_DEFAULT; + + if ( unicode_charmap ) + { + charmap.encoding = FT_ENCODING_UNICODE; + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + } + + error = FT_CMap_New( &pcf_cmap_class, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( pcfface->num_charmaps ) + pcfface->charmap = pcfface->charmaps[0]; +#endif + } + } + + Exit: + return error; + + Fail: + FT_TRACE2(( "[not a valid PCF file]\n" )); + PCF_Face_Done( pcfface ); + error = PCF_Err_Unknown_File_Format; /* error */ + goto Exit; + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Size_Select( FT_Size size, + FT_ULong strike_index ) + { + PCF_Accel accel = &( (PCF_Face)size->face )->accel; + + + FT_Select_Metrics( size->face, strike_index ); + + size->metrics.ascender = accel->fontAscent << 6; + size->metrics.descender = -accel->fontDescent << 6; + size->metrics.max_advance = accel->maxbounds.characterWidth << 6; + + return PCF_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Size_Request( FT_Size size, + FT_Size_Request req ) + { + PCF_Face face = (PCF_Face)size->face; + FT_Bitmap_Size* bsize = size->face->available_sizes; + FT_Error error = PCF_Err_Invalid_Pixel_Size; + FT_Long height; + + + height = FT_REQUEST_HEIGHT( req ); + height = ( height + 32 ) >> 6; + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) ) + error = PCF_Err_Ok; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + if ( height == ( face->accel.fontAscent + + face->accel.fontDescent ) ) + error = PCF_Err_Ok; + break; + + default: + error = PCF_Err_Unimplemented_Feature; + break; + } + + if ( error ) + return error; + else + return PCF_Size_Select( size, 0 ); + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Glyph_Load( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + PCF_Face face = (PCF_Face)FT_SIZE_FACE( size ); + FT_Stream stream; + FT_Error error = PCF_Err_Ok; + FT_Bitmap* bitmap = &slot->bitmap; + PCF_Metric metric; + FT_Offset bytes; + + FT_UNUSED( load_flags ); + + + FT_TRACE4(( "load_glyph %d ---", glyph_index )); + + if ( !face || glyph_index >= (FT_UInt)face->root.num_glyphs ) + { + error = PCF_Err_Invalid_Argument; + goto Exit; + } + + stream = face->root.stream; + + if ( glyph_index > 0 ) + glyph_index--; + + metric = face->metrics + glyph_index; + + bitmap->rows = metric->ascent + metric->descent; + bitmap->width = metric->rightSideBearing - metric->leftSideBearing; + bitmap->num_grays = 1; + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + + FT_TRACE6(( "BIT_ORDER %d ; BYTE_ORDER %d ; GLYPH_PAD %d\n", + PCF_BIT_ORDER( face->bitmapsFormat ), + PCF_BYTE_ORDER( face->bitmapsFormat ), + PCF_GLYPH_PAD( face->bitmapsFormat ) )); + + switch ( PCF_GLYPH_PAD( face->bitmapsFormat ) ) + { + case 1: + bitmap->pitch = ( bitmap->width + 7 ) >> 3; + break; + + case 2: + bitmap->pitch = ( ( bitmap->width + 15 ) >> 4 ) << 1; + break; + + case 4: + bitmap->pitch = ( ( bitmap->width + 31 ) >> 5 ) << 2; + break; + + case 8: + bitmap->pitch = ( ( bitmap->width + 63 ) >> 6 ) << 3; + break; + + default: + return PCF_Err_Invalid_File_Format; + } + + /* XXX: to do: are there cases that need repadding the bitmap? */ + bytes = bitmap->pitch * bitmap->rows; + + error = ft_glyphslot_alloc_bitmap( slot, bytes ); + if ( error ) + goto Exit; + + if ( FT_STREAM_SEEK( metric->bits ) || + FT_STREAM_READ( bitmap->buffer, bytes ) ) + goto Exit; + + if ( PCF_BIT_ORDER( face->bitmapsFormat ) != MSBFirst ) + BitOrderInvert( bitmap->buffer, bytes ); + + if ( ( PCF_BYTE_ORDER( face->bitmapsFormat ) != + PCF_BIT_ORDER( face->bitmapsFormat ) ) ) + { + switch ( PCF_SCAN_UNIT( face->bitmapsFormat ) ) + { + case 1: + break; + + case 2: + TwoByteSwap( bitmap->buffer, bytes ); + break; + + case 4: + FourByteSwap( bitmap->buffer, bytes ); + break; + } + } + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = metric->leftSideBearing; + slot->bitmap_top = metric->ascent; + + slot->metrics.horiAdvance = metric->characterWidth << 6; + slot->metrics.horiBearingX = metric->leftSideBearing << 6; + slot->metrics.horiBearingY = metric->ascent << 6; + slot->metrics.width = ( metric->rightSideBearing - + metric->leftSideBearing ) << 6; + slot->metrics.height = bitmap->rows << 6; + + ft_synthesize_vertical_metrics( &slot->metrics, + ( face->accel.fontAscent + + face->accel.fontDescent ) << 6 ); + + FT_TRACE4(( " --- ok\n" )); + + Exit: + return error; + } + + + /* + * + * BDF SERVICE + * + */ + + static FT_Error + pcf_get_bdf_property( PCF_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + PCF_Property prop; + + + prop = pcf_find_property( face, prop_name ); + if ( prop != NULL ) + { + if ( prop->isString ) + { + aproperty->type = BDF_PROPERTY_TYPE_ATOM; + aproperty->u.atom = prop->value.atom; + } + else + { + if ( prop->value.l > 0x7FFFFFFFL || prop->value.l < ( -1 - 0x7FFFFFFFL ) ) + { + FT_TRACE1(( "pcf_get_bdf_property: " )); + FT_TRACE1(( "too large integer 0x%x is truncated\n" )); + } + /* Apparently, the PCF driver loads all properties as signed integers! + * This really doesn't seem to be a problem, because this is + * sufficient for any meaningful values. + */ + aproperty->type = BDF_PROPERTY_TYPE_INTEGER; + aproperty->u.integer = (FT_Int32)prop->value.l; + } + return 0; + } + + return PCF_Err_Invalid_Argument; + } + + + static FT_Error + pcf_get_charset_id( PCF_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + *acharset_encoding = face->charset_encoding; + *acharset_registry = face->charset_registry; + + return 0; + } + + + static const FT_Service_BDFRec pcf_service_bdf = + { + (FT_BDF_GetCharsetIdFunc)pcf_get_charset_id, + (FT_BDF_GetPropertyFunc) pcf_get_bdf_property + }; + + + /* + * + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec pcf_services[] = + { + { FT_SERVICE_ID_BDF, &pcf_service_bdf }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PCF }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + pcf_driver_requester( FT_Module module, + const char* name ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( pcf_services, name ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec pcf_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_NO_OUTLINES, + sizeof ( FT_DriverRec ), + + "pcf", + 0x10000L, + 0x20000L, + + 0, + + 0, + 0, + pcf_driver_requester + }, + + sizeof ( PCF_FaceRec ), + sizeof ( FT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + PCF_Face_Init, + PCF_Face_Done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + 0, /* FT_Slot_InitFunc */ + 0, /* FT_Slot_DoneFunc */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + PCF_Glyph_Load, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + + PCF_Size_Request, + PCF_Size_Select + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.h b/uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.h new file mode 100644 index 000000000..5b52df8c7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcfdrivr.h @@ -0,0 +1,48 @@ +/* pcfdrivr.h + + FreeType font driver for pcf fonts + + Copyright 2000-2001, 2002 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCFDRIVR_H__ +#define __PCFDRIVR_H__ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) pcf_driver_class; + +FT_END_HEADER + + +#endif /* __PCFDRIVR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcferror.h b/uppsrc/plugin/FT_fontsys/src/pcf/pcferror.h new file mode 100644 index 000000000..d75c067aa --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcferror.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* pcferror.h */ +/* */ +/* PCF error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PCF error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PCFERROR_H__ +#define __PCFERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX PCF_Err_ +#define FT_ERR_BASE FT_Mod_Err_PCF + +#include FT_ERRORS_H + +#endif /* __PCFERROR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcfread.c b/uppsrc/plugin/FT_fontsys/src/pcf/pcfread.c new file mode 100644 index 000000000..7ad75724b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcfread.c @@ -0,0 +1,1278 @@ +/* pcfread.c + + FreeType font driver for pcf fonts + + Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, + 2010 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#include <freetype/ft2build.h> + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H + +#include "pcf.h" +#include "pcfread.h" + +#include "pcferror.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_pcfread + + +#ifdef FT_DEBUG_LEVEL_TRACE + static const char* const tableNames[] = + { + "prop", "accl", "mtrcs", "bmps", "imtrcs", + "enc", "swidth", "names", "accel" + }; +#endif + + + static + const FT_Frame_Field pcf_toc_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_TocRec + + FT_FRAME_START( 8 ), + FT_FRAME_ULONG_LE( version ), + FT_FRAME_ULONG_LE( count ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_table_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_TableRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG_LE( type ), + FT_FRAME_ULONG_LE( format ), + FT_FRAME_ULONG_LE( size ), + FT_FRAME_ULONG_LE( offset ), + FT_FRAME_END + }; + + + static FT_Error + pcf_read_TOC( FT_Stream stream, + PCF_Face face ) + { + FT_Error error; + PCF_Toc toc = &face->toc; + PCF_Table tables; + + FT_Memory memory = FT_FACE(face)->memory; + FT_UInt n; + + + if ( FT_STREAM_SEEK ( 0 ) || + FT_STREAM_READ_FIELDS ( pcf_toc_header, toc ) ) + return PCF_Err_Cannot_Open_Resource; + + if ( toc->version != PCF_FILE_VERSION || + toc->count > FT_ARRAY_MAX( face->toc.tables ) || + toc->count == 0 ) + return PCF_Err_Invalid_File_Format; + + if ( FT_NEW_ARRAY( face->toc.tables, toc->count ) ) + return PCF_Err_Out_Of_Memory; + + tables = face->toc.tables; + for ( n = 0; n < toc->count; n++ ) + { + if ( FT_STREAM_READ_FIELDS( pcf_table_header, tables ) ) + goto Exit; + tables++; + } + + /* Sort tables and check for overlaps. Because they are almost */ + /* always ordered already, an in-place bubble sort with simultaneous */ + /* boundary checking seems appropriate. */ + tables = face->toc.tables; + + for ( n = 0; n < toc->count - 1; n++ ) + { + FT_UInt i, have_change; + + + have_change = 0; + + for ( i = 0; i < toc->count - 1 - n; i++ ) + { + PCF_TableRec tmp; + + + if ( tables[i].offset > tables[i + 1].offset ) + { + tmp = tables[i]; + tables[i] = tables[i + 1]; + tables[i + 1] = tmp; + + have_change = 1; + } + + if ( ( tables[i].size > tables[i + 1].offset ) || + ( tables[i].offset > tables[i + 1].offset - tables[i].size ) ) + return PCF_Err_Invalid_Offset; + } + + if ( !have_change ) + break; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + + { + FT_UInt i, j; + const char* name = "?"; + + + FT_TRACE4(( "pcf_read_TOC:\n" )); + + FT_TRACE4(( " number of tables: %ld\n", face->toc.count )); + + tables = face->toc.tables; + for ( i = 0; i < toc->count; i++ ) + { + for ( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] ); + j++ ) + if ( tables[i].type == (FT_UInt)( 1 << j ) ) + name = tableNames[j]; + + FT_TRACE4(( " %d: type=%s, format=0x%X, " + "size=%ld (0x%lX), offset=%ld (0x%lX)\n", + i, name, + tables[i].format, + tables[i].size, tables[i].size, + tables[i].offset, tables[i].offset )); + } + } + +#endif + + return PCF_Err_Ok; + + Exit: + FT_FREE( face->toc.tables ); + return error; + } + + +#define PCF_METRIC_SIZE 12 + + static + const FT_Frame_Field pcf_metric_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_MetricRec + + FT_FRAME_START( PCF_METRIC_SIZE ), + FT_FRAME_SHORT_LE( leftSideBearing ), + FT_FRAME_SHORT_LE( rightSideBearing ), + FT_FRAME_SHORT_LE( characterWidth ), + FT_FRAME_SHORT_LE( ascent ), + FT_FRAME_SHORT_LE( descent ), + FT_FRAME_SHORT_LE( attributes ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_metric_msb_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_MetricRec + + FT_FRAME_START( PCF_METRIC_SIZE ), + FT_FRAME_SHORT( leftSideBearing ), + FT_FRAME_SHORT( rightSideBearing ), + FT_FRAME_SHORT( characterWidth ), + FT_FRAME_SHORT( ascent ), + FT_FRAME_SHORT( descent ), + FT_FRAME_SHORT( attributes ), + FT_FRAME_END + }; + + +#define PCF_COMPRESSED_METRIC_SIZE 5 + + static + const FT_Frame_Field pcf_compressed_metric_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_Compressed_MetricRec + + FT_FRAME_START( PCF_COMPRESSED_METRIC_SIZE ), + FT_FRAME_BYTE( leftSideBearing ), + FT_FRAME_BYTE( rightSideBearing ), + FT_FRAME_BYTE( characterWidth ), + FT_FRAME_BYTE( ascent ), + FT_FRAME_BYTE( descent ), + FT_FRAME_END + }; + + + static FT_Error + pcf_get_metric( FT_Stream stream, + FT_ULong format, + PCF_Metric metric ) + { + FT_Error error = PCF_Err_Ok; + + + if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + { + const FT_Frame_Field* fields; + + + /* parsing normal metrics */ + fields = PCF_BYTE_ORDER( format ) == MSBFirst + ? pcf_metric_msb_header + : pcf_metric_header; + + /* the following sets `error' but doesn't return in case of failure */ + (void)FT_STREAM_READ_FIELDS( fields, metric ); + } + else + { + PCF_Compressed_MetricRec compr; + + + /* parsing compressed metrics */ + if ( FT_STREAM_READ_FIELDS( pcf_compressed_metric_header, &compr ) ) + goto Exit; + + metric->leftSideBearing = (FT_Short)( compr.leftSideBearing - 0x80 ); + metric->rightSideBearing = (FT_Short)( compr.rightSideBearing - 0x80 ); + metric->characterWidth = (FT_Short)( compr.characterWidth - 0x80 ); + metric->ascent = (FT_Short)( compr.ascent - 0x80 ); + metric->descent = (FT_Short)( compr.descent - 0x80 ); + metric->attributes = 0; + } + + Exit: + return error; + } + + + static FT_Error + pcf_seek_to_table_type( FT_Stream stream, + PCF_Table tables, + FT_ULong ntables, /* same as PCF_Toc->count */ + FT_ULong type, + FT_ULong *aformat, + FT_ULong *asize ) + { + FT_Error error = PCF_Err_Invalid_File_Format; + FT_ULong i; + + + for ( i = 0; i < ntables; i++ ) + if ( tables[i].type == type ) + { + if ( stream->pos > tables[i].offset ) + { + error = PCF_Err_Invalid_Stream_Skip; + goto Fail; + } + + if ( FT_STREAM_SKIP( tables[i].offset - stream->pos ) ) + { + error = PCF_Err_Invalid_Stream_Skip; + goto Fail; + } + + *asize = tables[i].size; + *aformat = tables[i].format; + + return PCF_Err_Ok; + } + + Fail: + *asize = 0; + return error; + } + + + static FT_Bool + pcf_has_table_type( PCF_Table tables, + FT_ULong ntables, /* same as PCF_Toc->count */ + FT_ULong type ) + { + FT_ULong i; + + + for ( i = 0; i < ntables; i++ ) + if ( tables[i].type == type ) + return TRUE; + + return FALSE; + } + + +#define PCF_PROPERTY_SIZE 9 + + static + const FT_Frame_Field pcf_property_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_ParsePropertyRec + + FT_FRAME_START( PCF_PROPERTY_SIZE ), + FT_FRAME_LONG_LE( name ), + FT_FRAME_BYTE ( isString ), + FT_FRAME_LONG_LE( value ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_property_msb_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_ParsePropertyRec + + FT_FRAME_START( PCF_PROPERTY_SIZE ), + FT_FRAME_LONG( name ), + FT_FRAME_BYTE( isString ), + FT_FRAME_LONG( value ), + FT_FRAME_END + }; + + + FT_LOCAL_DEF( PCF_Property ) + pcf_find_property( PCF_Face face, + const FT_String* prop ) + { + PCF_Property properties = face->properties; + FT_Bool found = 0; + int i; + + + for ( i = 0 ; i < face->nprops && !found; i++ ) + { + if ( !ft_strcmp( properties[i].name, prop ) ) + found = 1; + } + + if ( found ) + return properties + i - 1; + else + return NULL; + } + + + static FT_Error + pcf_get_properties( FT_Stream stream, + PCF_Face face ) + { + PCF_ParseProperty props = 0; + PCF_Property properties = NULL; + FT_ULong nprops, i; + FT_ULong format, size; + FT_Error error; + FT_Memory memory = FT_FACE(face)->memory; + FT_ULong string_size; + FT_String* strings = 0; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_PROPERTIES, + &format, + &size ); + if ( error ) + goto Bail; + + if ( FT_READ_ULONG_LE( format ) ) + goto Bail; + + FT_TRACE4(( "pcf_get_properties:\n" )); + + FT_TRACE4(( " format = %ld\n", format )); + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + goto Bail; + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_ULONG( nprops ); + else + (void)FT_READ_ULONG_LE( nprops ); + if ( error ) + goto Bail; + + FT_TRACE4(( " nprop = %d (truncate %d props)\n", + (int)nprops, nprops - (int)nprops )); + + nprops = (int)nprops; + + /* rough estimate */ + if ( nprops > size / PCF_PROPERTY_SIZE ) + { + error = PCF_Err_Invalid_Table; + goto Bail; + } + + face->nprops = (int)nprops; + + if ( FT_NEW_ARRAY( props, nprops ) ) + goto Bail; + + for ( i = 0; i < nprops; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + { + if ( FT_STREAM_READ_FIELDS( pcf_property_msb_header, props + i ) ) + goto Bail; + } + else + { + if ( FT_STREAM_READ_FIELDS( pcf_property_header, props + i ) ) + goto Bail; + } + } + + /* pad the property array */ + /* */ + /* clever here - nprops is the same as the number of odd-units read, */ + /* as only isStringProp are odd length (Keith Packard) */ + /* */ + if ( nprops & 3 ) + { + i = 4 - ( nprops & 3 ); + if ( FT_STREAM_SKIP( i ) ) + { + error = PCF_Err_Invalid_Stream_Skip; + goto Bail; + } + } + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_ULONG( string_size ); + else + (void)FT_READ_ULONG_LE( string_size ); + if ( error ) + goto Bail; + + FT_TRACE4(( " string_size = %ld\n", string_size )); + + /* rough estimate */ + if ( string_size > size - nprops * PCF_PROPERTY_SIZE ) + { + error = PCF_Err_Invalid_Table; + goto Bail; + } + + if ( FT_NEW_ARRAY( strings, string_size ) ) + goto Bail; + + error = FT_Stream_Read( stream, (FT_Byte*)strings, string_size ); + if ( error ) + goto Bail; + + if ( FT_NEW_ARRAY( properties, nprops ) ) + goto Bail; + + face->properties = properties; + + for ( i = 0; i < nprops; i++ ) + { + FT_Long name_offset = props[i].name; + + + if ( ( name_offset < 0 ) || + ( (FT_ULong)name_offset > string_size ) ) + { + error = PCF_Err_Invalid_Offset; + goto Bail; + } + + if ( FT_STRDUP( properties[i].name, strings + name_offset ) ) + goto Bail; + + FT_TRACE4(( " %s:", properties[i].name )); + + properties[i].isString = props[i].isString; + + if ( props[i].isString ) + { + FT_Long value_offset = props[i].value; + + + if ( ( value_offset < 0 ) || + ( (FT_ULong)value_offset > string_size ) ) + { + error = PCF_Err_Invalid_Offset; + goto Bail; + } + + if ( FT_STRDUP( properties[i].value.atom, strings + value_offset ) ) + goto Bail; + + FT_TRACE4(( " `%s'\n", properties[i].value.atom )); + } + else + { + properties[i].value.l = props[i].value; + + FT_TRACE4(( " %d\n", properties[i].value.l )); + } + } + + error = PCF_Err_Ok; + + Bail: + FT_FREE( props ); + FT_FREE( strings ); + + return error; + } + + + static FT_Error + pcf_get_metrics( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_ULong format, size; + PCF_Metric metrics = 0; + FT_ULong nmetrics, i; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_METRICS, + &format, + &size ); + if ( error ) + return error; + + if ( FT_READ_ULONG_LE( format ) ) + goto Bail; + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) && + !PCF_FORMAT_MATCH( format, PCF_COMPRESSED_METRICS ) ) + return PCF_Err_Invalid_File_Format; + + if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_ULONG( nmetrics ); + else + (void)FT_READ_ULONG_LE( nmetrics ); + } + else + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_USHORT( nmetrics ); + else + (void)FT_READ_USHORT_LE( nmetrics ); + } + if ( error ) + return PCF_Err_Invalid_File_Format; + + face->nmetrics = nmetrics; + + if ( !nmetrics ) + return PCF_Err_Invalid_Table; + + FT_TRACE4(( "pcf_get_metrics:\n" )); + + FT_TRACE4(( " number of metrics: %d\n", nmetrics )); + + /* rough estimate */ + if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + { + if ( nmetrics > size / PCF_METRIC_SIZE ) + return PCF_Err_Invalid_Table; + } + else + { + if ( nmetrics > size / PCF_COMPRESSED_METRIC_SIZE ) + return PCF_Err_Invalid_Table; + } + + if ( FT_NEW_ARRAY( face->metrics, nmetrics ) ) + return PCF_Err_Out_Of_Memory; + + metrics = face->metrics; + for ( i = 0; i < nmetrics; i++ ) + { + error = pcf_get_metric( stream, format, metrics + i ); + + metrics[i].bits = 0; + + FT_TRACE5(( " idx %d: width=%d, " + "lsb=%d, rsb=%d, ascent=%d, descent=%d, swidth=%d\n", + i, + ( metrics + i )->characterWidth, + ( metrics + i )->leftSideBearing, + ( metrics + i )->rightSideBearing, + ( metrics + i )->ascent, + ( metrics + i )->descent, + ( metrics + i )->attributes )); + + if ( error ) + break; + } + + if ( error ) + FT_FREE( face->metrics ); + + Bail: + return error; + } + + + static FT_Error + pcf_get_bitmaps( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_Long* offsets = NULL; + FT_Long bitmapSizes[GLYPHPADOPTIONS]; + FT_ULong format, size; + FT_ULong nbitmaps, i, sizebitmaps = 0; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_BITMAPS, + &format, + &size ); + if ( error ) + return error; + + error = FT_Stream_EnterFrame( stream, 8 ); + if ( error ) + return error; + + format = FT_GET_ULONG_LE(); + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + nbitmaps = FT_GET_ULONG(); + else + nbitmaps = FT_GET_ULONG_LE(); + + FT_Stream_ExitFrame( stream ); + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + return PCF_Err_Invalid_File_Format; + + FT_TRACE4(( "pcf_get_bitmaps:\n" )); + + FT_TRACE4(( " number of bitmaps: %d\n", nbitmaps )); + + /* XXX: PCF_Face->nmetrics is singed FT_Long, see pcf.h */ + if ( face->nmetrics < 0 || nbitmaps != ( FT_ULong )face->nmetrics ) + return PCF_Err_Invalid_File_Format; + + if ( FT_NEW_ARRAY( offsets, nbitmaps ) ) + return error; + + for ( i = 0; i < nbitmaps; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_LONG( offsets[i] ); + else + (void)FT_READ_LONG_LE( offsets[i] ); + + FT_TRACE5(( " bitmap %d: offset %ld (0x%lX)\n", + i, offsets[i], offsets[i] )); + } + if ( error ) + goto Bail; + + for ( i = 0; i < GLYPHPADOPTIONS; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_LONG( bitmapSizes[i] ); + else + (void)FT_READ_LONG_LE( bitmapSizes[i] ); + if ( error ) + goto Bail; + + sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX( format )]; + + FT_TRACE4(( " padding %d implies a size of %ld\n", i, bitmapSizes[i] )); + } + + FT_TRACE4(( " %d bitmaps, padding index %ld\n", + nbitmaps, + PCF_GLYPH_PAD_INDEX( format ) )); + FT_TRACE4(( " bitmap size = %d\n", sizebitmaps )); + + FT_UNUSED( sizebitmaps ); /* only used for debugging */ + + for ( i = 0; i < nbitmaps; i++ ) + { + /* rough estimate */ + if ( ( offsets[i] < 0 ) || + ( (FT_ULong)offsets[i] > size ) ) + { + FT_TRACE0(( "pcf_get_bitmaps:" + " invalid offset to bitmap data of glyph %d\n", i )); + } + else + face->metrics[i].bits = stream->pos + offsets[i]; + } + + face->bitmapsFormat = format; + + Bail: + FT_FREE( offsets ); + return error; + } + + + static FT_Error + pcf_get_encodings( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_ULong format, size; + int firstCol, lastCol; + int firstRow, lastRow; + int nencoding, encodingOffset; + int i, j; + PCF_Encoding tmpEncoding = NULL, encoding = 0; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_BDF_ENCODINGS, + &format, + &size ); + if ( error ) + return error; + + error = FT_Stream_EnterFrame( stream, 14 ); + if ( error ) + return error; + + format = FT_GET_ULONG_LE(); + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + { + firstCol = FT_GET_SHORT(); + lastCol = FT_GET_SHORT(); + firstRow = FT_GET_SHORT(); + lastRow = FT_GET_SHORT(); + face->defaultChar = FT_GET_SHORT(); + } + else + { + firstCol = FT_GET_SHORT_LE(); + lastCol = FT_GET_SHORT_LE(); + firstRow = FT_GET_SHORT_LE(); + lastRow = FT_GET_SHORT_LE(); + face->defaultChar = FT_GET_SHORT_LE(); + } + + FT_Stream_ExitFrame( stream ); + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + return PCF_Err_Invalid_File_Format; + + FT_TRACE4(( "pdf_get_encodings:\n" )); + + FT_TRACE4(( " firstCol %d, lastCol %d, firstRow %d, lastRow %d\n", + firstCol, lastCol, firstRow, lastRow )); + + nencoding = ( lastCol - firstCol + 1 ) * ( lastRow - firstRow + 1 ); + + if ( FT_NEW_ARRAY( tmpEncoding, nencoding ) ) + return PCF_Err_Out_Of_Memory; + + error = FT_Stream_EnterFrame( stream, 2 * nencoding ); + if ( error ) + goto Bail; + + for ( i = 0, j = 0 ; i < nencoding; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + encodingOffset = FT_GET_SHORT(); + else + encodingOffset = FT_GET_SHORT_LE(); + + if ( encodingOffset != -1 ) + { + tmpEncoding[j].enc = ( ( ( i / ( lastCol - firstCol + 1 ) ) + + firstRow ) * 256 ) + + ( ( i % ( lastCol - firstCol + 1 ) ) + + firstCol ); + + tmpEncoding[j].glyph = (FT_Short)encodingOffset; + + FT_TRACE5(( " code %d (0x%04X): idx %d\n", + tmpEncoding[j].enc, tmpEncoding[j].enc, + tmpEncoding[j].glyph )); + + j++; + } + } + FT_Stream_ExitFrame( stream ); + + if ( FT_NEW_ARRAY( encoding, j ) ) + goto Bail; + + for ( i = 0; i < j; i++ ) + { + encoding[i].enc = tmpEncoding[i].enc; + encoding[i].glyph = tmpEncoding[i].glyph; + } + + face->nencodings = j; + face->encodings = encoding; + FT_FREE( tmpEncoding ); + + return error; + + Bail: + FT_FREE( encoding ); + FT_FREE( tmpEncoding ); + return error; + } + + + static + const FT_Frame_Field pcf_accel_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_AccelRec + + FT_FRAME_START( 20 ), + FT_FRAME_BYTE ( noOverlap ), + FT_FRAME_BYTE ( constantMetrics ), + FT_FRAME_BYTE ( terminalFont ), + FT_FRAME_BYTE ( constantWidth ), + FT_FRAME_BYTE ( inkInside ), + FT_FRAME_BYTE ( inkMetrics ), + FT_FRAME_BYTE ( drawDirection ), + FT_FRAME_SKIP_BYTES( 1 ), + FT_FRAME_LONG_LE ( fontAscent ), + FT_FRAME_LONG_LE ( fontDescent ), + FT_FRAME_LONG_LE ( maxOverlap ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_accel_msb_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_AccelRec + + FT_FRAME_START( 20 ), + FT_FRAME_BYTE ( noOverlap ), + FT_FRAME_BYTE ( constantMetrics ), + FT_FRAME_BYTE ( terminalFont ), + FT_FRAME_BYTE ( constantWidth ), + FT_FRAME_BYTE ( inkInside ), + FT_FRAME_BYTE ( inkMetrics ), + FT_FRAME_BYTE ( drawDirection ), + FT_FRAME_SKIP_BYTES( 1 ), + FT_FRAME_LONG ( fontAscent ), + FT_FRAME_LONG ( fontDescent ), + FT_FRAME_LONG ( maxOverlap ), + FT_FRAME_END + }; + + + static FT_Error + pcf_get_accel( FT_Stream stream, + PCF_Face face, + FT_ULong type ) + { + FT_ULong format, size; + FT_Error error = PCF_Err_Ok; + PCF_Accel accel = &face->accel; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + type, + &format, + &size ); + if ( error ) + goto Bail; + + if ( FT_READ_ULONG_LE( format ) ) + goto Bail; + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) && + !PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) ) + goto Bail; + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + { + if ( FT_STREAM_READ_FIELDS( pcf_accel_msb_header, accel ) ) + goto Bail; + } + else + { + if ( FT_STREAM_READ_FIELDS( pcf_accel_header, accel ) ) + goto Bail; + } + + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->minbounds) ); + if ( error ) + goto Bail; + + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->maxbounds) ); + if ( error ) + goto Bail; + + if ( PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) ) + { + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->ink_minbounds) ); + if ( error ) + goto Bail; + + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->ink_maxbounds) ); + if ( error ) + goto Bail; + } + else + { + accel->ink_minbounds = accel->minbounds; /* I'm not sure about this */ + accel->ink_maxbounds = accel->maxbounds; + } + + Bail: + return error; + } + + + static FT_Error + pcf_interpret_style( PCF_Face pcf ) + { + FT_Error error = PCF_Err_Ok; + FT_Face face = FT_FACE( pcf ); + FT_Memory memory = face->memory; + + PCF_Property prop; + + size_t nn, len; + char* strings[4] = { NULL, NULL, NULL, NULL }; + size_t lengths[4]; + + + face->style_flags = 0; + + prop = pcf_find_property( pcf, "SLANT" ); + if ( prop && prop->isString && + ( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' || + *(prop->value.atom) == 'I' || *(prop->value.atom) == 'i' ) ) + { + face->style_flags |= FT_STYLE_FLAG_ITALIC; + strings[2] = ( *(prop->value.atom) == 'O' || + *(prop->value.atom) == 'o' ) ? (char *)"Oblique" + : (char *)"Italic"; + } + + prop = pcf_find_property( pcf, "WEIGHT_NAME" ); + if ( prop && prop->isString && + ( *(prop->value.atom) == 'B' || *(prop->value.atom) == 'b' ) ) + { + face->style_flags |= FT_STYLE_FLAG_BOLD; + strings[1] = (char *)"Bold"; + } + + prop = pcf_find_property( pcf, "SETWIDTH_NAME" ); + if ( prop && prop->isString && + *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[3] = (char *)(prop->value.atom); + + prop = pcf_find_property( pcf, "ADD_STYLE_NAME" ); + if ( prop && prop->isString && + *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[0] = (char *)(prop->value.atom); + + for ( len = 0, nn = 0; nn < 4; nn++ ) + { + lengths[nn] = 0; + if ( strings[nn] ) + { + lengths[nn] = ft_strlen( strings[nn] ); + len += lengths[nn] + 1; + } + } + + if ( len == 0 ) + { + strings[0] = (char *)"Regular"; + lengths[0] = ft_strlen( strings[0] ); + len = lengths[0] + 1; + } + + { + char* s; + + + if ( FT_ALLOC( face->style_name, len ) ) + return error; + + s = face->style_name; + + for ( nn = 0; nn < 4; nn++ ) + { + char* src = strings[nn]; + + + len = lengths[nn]; + + if ( src == NULL ) + continue; + + /* separate elements with a space */ + if ( s != face->style_name ) + *s++ = ' '; + + ft_memcpy( s, src, len ); + + /* need to convert spaces to dashes for */ + /* add_style_name and setwidth_name */ + if ( nn == 0 || nn == 3 ) + { + size_t mm; + + + for ( mm = 0; mm < len; mm++ ) + if (s[mm] == ' ') + s[mm] = '-'; + } + + s += len; + } + *s = 0; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + pcf_load_font( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_Bool hasBDFAccelerators; + + + error = pcf_read_TOC( stream, face ); + if ( error ) + goto Exit; + + error = pcf_get_properties( stream, face ); + if ( error ) + goto Exit; + + /* Use the old accelerators if no BDF accelerators are in the file. */ + hasBDFAccelerators = pcf_has_table_type( face->toc.tables, + face->toc.count, + PCF_BDF_ACCELERATORS ); + if ( !hasBDFAccelerators ) + { + error = pcf_get_accel( stream, face, PCF_ACCELERATORS ); + if ( error ) + goto Exit; + } + + /* metrics */ + error = pcf_get_metrics( stream, face ); + if ( error ) + goto Exit; + + /* bitmaps */ + error = pcf_get_bitmaps( stream, face ); + if ( error ) + goto Exit; + + /* encodings */ + error = pcf_get_encodings( stream, face ); + if ( error ) + goto Exit; + + /* BDF style accelerators (i.e. bounds based on encoded glyphs) */ + if ( hasBDFAccelerators ) + { + error = pcf_get_accel( stream, face, PCF_BDF_ACCELERATORS ); + if ( error ) + goto Exit; + } + + /* XXX: TO DO: inkmetrics and glyph_names are missing */ + + /* now construct the face object */ + { + FT_Face root = FT_FACE( face ); + PCF_Property prop; + + + root->num_faces = 1; + root->face_index = 0; + root->face_flags = FT_FACE_FLAG_FIXED_SIZES | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_FAST_GLYPHS; + + if ( face->accel.constantWidth ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( ( error = pcf_interpret_style( face ) ) != 0 ) + goto Exit; + + prop = pcf_find_property( face, "FAMILY_NAME" ); + if ( prop && prop->isString ) + { + if ( FT_STRDUP( root->family_name, prop->value.atom ) ) + goto Exit; + } + else + root->family_name = NULL; + + /* + * Note: We shift all glyph indices by +1 since we must + * respect the convention that glyph 0 always corresponds + * to the `missing glyph'. + * + * This implies bumping the number of `available' glyphs by 1. + */ + root->num_glyphs = face->nmetrics + 1; + + root->num_fixed_sizes = 1; + if ( FT_NEW_ARRAY( root->available_sizes, 1 ) ) + goto Exit; + + { + FT_Bitmap_Size* bsize = root->available_sizes; + FT_Short resolution_x = 0, resolution_y = 0; + + + FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) ); + +#if 0 + bsize->height = face->accel.maxbounds.ascent << 6; +#endif + bsize->height = (FT_Short)( face->accel.fontAscent + + face->accel.fontDescent ); + + prop = pcf_find_property( face, "AVERAGE_WIDTH" ); + if ( prop ) + bsize->width = (FT_Short)( ( prop->value.l + 5 ) / 10 ); + else + bsize->width = (FT_Short)( bsize->height * 2/3 ); + + prop = pcf_find_property( face, "POINT_SIZE" ); + if ( prop ) + /* convert from 722.7 decipoints to 72 points per inch */ + bsize->size = + (FT_Pos)( ( prop->value.l * 64 * 7200 + 36135L ) / 72270L ); + + prop = pcf_find_property( face, "PIXEL_SIZE" ); + if ( prop ) + bsize->y_ppem = (FT_Short)prop->value.l << 6; + + prop = pcf_find_property( face, "RESOLUTION_X" ); + if ( prop ) + resolution_x = (FT_Short)prop->value.l; + + prop = pcf_find_property( face, "RESOLUTION_Y" ); + if ( prop ) + resolution_y = (FT_Short)prop->value.l; + + if ( bsize->y_ppem == 0 ) + { + bsize->y_ppem = bsize->size; + if ( resolution_y ) + bsize->y_ppem = bsize->y_ppem * resolution_y / 72; + } + if ( resolution_x && resolution_y ) + bsize->x_ppem = bsize->y_ppem * resolution_x / resolution_y; + else + bsize->x_ppem = bsize->y_ppem; + } + + /* set up charset */ + { + PCF_Property charset_registry = 0, charset_encoding = 0; + + + charset_registry = pcf_find_property( face, "CHARSET_REGISTRY" ); + charset_encoding = pcf_find_property( face, "CHARSET_ENCODING" ); + + if ( charset_registry && charset_registry->isString && + charset_encoding && charset_encoding->isString ) + { + if ( FT_STRDUP( face->charset_encoding, + charset_encoding->value.atom ) || + FT_STRDUP( face->charset_registry, + charset_registry->value.atom ) ) + goto Exit; + } + } + } + + Exit: + if ( error ) + { + /* This is done to respect the behaviour of the original */ + /* PCF font driver. */ + error = PCF_Err_Invalid_File_Format; + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcfread.h b/uppsrc/plugin/FT_fontsys/src/pcf/pcfread.h new file mode 100644 index 000000000..6b4cb37a9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcfread.h @@ -0,0 +1,45 @@ +/* pcfread.h + + FreeType font driver for pcf fonts + + Copyright 2003 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCFREAD_H__ +#define __PCFREAD_H__ + + +#include <freetype/ft2build.h> + +FT_BEGIN_HEADER + + FT_LOCAL( PCF_Property ) + pcf_find_property( PCF_Face face, + const FT_String* prop ); + +FT_END_HEADER + +#endif /* __PCFREAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.c b/uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.c new file mode 100644 index 000000000..189591870 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.c @@ -0,0 +1,104 @@ +/* + +Copyright 1990, 1994, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ +/* $XFree86: xc/lib/font/util/utilbitmap.c,v 1.3 1999/08/22 08:58:58 dawes Exp $ */ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +/* Modified for use with FreeType */ + + +#include <freetype/ft2build.h> +#include "pcfutil.h" + + + /* + * Invert bit order within each BYTE of an array. + */ + + FT_LOCAL_DEF( void ) + BitOrderInvert( unsigned char* buf, + size_t nbytes ) + { + for ( ; nbytes > 0; nbytes--, buf++ ) + { + unsigned int val = *buf; + + + val = ( ( val >> 1 ) & 0x55 ) | ( ( val << 1 ) & 0xAA ); + val = ( ( val >> 2 ) & 0x33 ) | ( ( val << 2 ) & 0xCC ); + val = ( ( val >> 4 ) & 0x0F ) | ( ( val << 4 ) & 0xF0 ); + + *buf = (unsigned char)val; + } + } + + + /* + * Invert byte order within each 16-bits of an array. + */ + + FT_LOCAL_DEF( void ) + TwoByteSwap( unsigned char* buf, + size_t nbytes ) + { + unsigned char c; + + + for ( ; nbytes >= 2; nbytes -= 2, buf += 2 ) + { + c = buf[0]; + buf[0] = buf[1]; + buf[1] = c; + } + } + + /* + * Invert byte order within each 32-bits of an array. + */ + + FT_LOCAL_DEF( void ) + FourByteSwap( unsigned char* buf, + size_t nbytes ) + { + unsigned char c; + + + for ( ; nbytes >= 4; nbytes -= 4, buf += 4 ) + { + c = buf[0]; + buf[0] = buf[3]; + buf[3] = c; + + c = buf[1]; + buf[1] = buf[2]; + buf[2] = c; + } + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.h b/uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.h new file mode 100644 index 000000000..0b7d1005e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pcf/pcfutil.h @@ -0,0 +1,55 @@ +/* pcfutil.h + + FreeType font driver for pcf fonts + + Copyright 2000, 2001, 2004 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCFUTIL_H__ +#define __PCFUTIL_H__ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H + + +FT_BEGIN_HEADER + + FT_LOCAL( void ) + BitOrderInvert( unsigned char* buf, + size_t nbytes ); + + FT_LOCAL( void ) + TwoByteSwap( unsigned char* buf, + size_t nbytes ); + + FT_LOCAL( void ) + FourByteSwap( unsigned char* buf, + size_t nbytes ); + +FT_END_HEADER + +#endif /* __PCFUTIL_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfr.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfr.c new file mode 100644 index 000000000..aa239e0fb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfr.c @@ -0,0 +1,29 @@ +/***************************************************************************/ +/* */ +/* pfr.c */ +/* */ +/* FreeType PFR driver component. */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> + +#include "pfrload.c" +#include "pfrgload.c" +#include "pfrcmap.c" +#include "pfrobjs.c" +#include "pfrdrivr.c" +#include "pfrsbit.c" + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.c new file mode 100644 index 000000000..9c8f9ed8e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.c @@ -0,0 +1,166 @@ +/***************************************************************************/ +/* */ +/* pfrcmap.c */ +/* */ +/* FreeType PFR cmap handling (body). */ +/* */ +/* Copyright 2002, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrcmap.h" +#include "pfrobjs.h" + +#include "pfrerror.h" + + + FT_CALLBACK_DEF( FT_Error ) + pfr_cmap_init( PFR_CMap cmap ) + { + FT_Error error = PFR_Err_Ok; + PFR_Face face = (PFR_Face)FT_CMAP_FACE( cmap ); + + + cmap->num_chars = face->phy_font.num_chars; + cmap->chars = face->phy_font.chars; + + /* just for safety, check that the character entries are correctly */ + /* sorted in increasing character code order */ + { + FT_UInt n; + + + for ( n = 1; n < cmap->num_chars; n++ ) + { + if ( cmap->chars[n - 1].char_code >= cmap->chars[n].char_code ) + { + error = PFR_Err_Invalid_Table; + goto Exit; + } + } + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( void ) + pfr_cmap_done( PFR_CMap cmap ) + { + cmap->chars = NULL; + cmap->num_chars = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + pfr_cmap_char_index( PFR_CMap cmap, + FT_UInt32 char_code ) + { + FT_UInt min = 0; + FT_UInt max = cmap->num_chars; + FT_UInt mid; + PFR_Char gchar; + + + while ( min < max ) + { + mid = min + ( max - min ) / 2; + gchar = cmap->chars + mid; + + if ( gchar->char_code == char_code ) + return mid + 1; + + if ( gchar->char_code < char_code ) + min = mid + 1; + else + max = mid; + } + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + pfr_cmap_char_next( PFR_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code + 1; + + + Restart: + { + FT_UInt min = 0; + FT_UInt max = cmap->num_chars; + FT_UInt mid; + PFR_Char gchar; + + + while ( min < max ) + { + mid = min + ( ( max - min ) >> 1 ); + gchar = cmap->chars + mid; + + if ( gchar->char_code == char_code ) + { + result = mid; + if ( result != 0 ) + { + result++; + goto Exit; + } + + char_code++; + goto Restart; + } + + if ( gchar->char_code < char_code ) + min = mid+1; + else + max = mid; + } + + /* we didn't find it, but we have a pair just above it */ + char_code = 0; + + if ( min < cmap->num_chars ) + { + gchar = cmap->chars + min; + result = min; + if ( result != 0 ) + { + result++; + char_code = gchar->char_code; + } + } + } + + Exit: + *pchar_code = char_code; + return result; + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + pfr_cmap_class_rec = + { + sizeof ( PFR_CMapRec ), + + (FT_CMap_InitFunc) pfr_cmap_init, + (FT_CMap_DoneFunc) pfr_cmap_done, + (FT_CMap_CharIndexFunc)pfr_cmap_char_index, + (FT_CMap_CharNextFunc) pfr_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.h new file mode 100644 index 000000000..429c39c1d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrcmap.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* pfrcmap.h */ +/* */ +/* FreeType PFR cmap handling (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRCMAP_H__ +#define __PFRCMAP_H__ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include "pfrtypes.h" + + +FT_BEGIN_HEADER + + typedef struct PFR_CMapRec_ + { + FT_CMapRec cmap; + FT_UInt num_chars; + PFR_Char chars; + + } PFR_CMapRec, *PFR_CMap; + + + FT_CALLBACK_TABLE const FT_CMap_ClassRec pfr_cmap_class_rec; + +FT_END_HEADER + + +#endif /* __PFRCMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.c new file mode 100644 index 000000000..7058143b8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.c @@ -0,0 +1,214 @@ +/***************************************************************************/ +/* */ +/* pfrdrivr.c */ +/* */ +/* FreeType PFR driver interface (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_SERVICE_PFR_H +#include FT_SERVICE_XFREE86_NAME_H +#include "pfrdrivr.h" +#include "pfrobjs.h" + +#include "pfrerror.h" + + + FT_CALLBACK_DEF( FT_Error ) + pfr_get_kerning( FT_Face pfrface, /* PFR_Face */ + FT_UInt left, + FT_UInt right, + FT_Vector *avector ) + { + PFR_Face face = (PFR_Face)pfrface; + PFR_PhyFont phys = &face->phy_font; + + + pfr_face_get_kerning( pfrface, left, right, avector ); + + /* convert from metrics to outline units when necessary */ + if ( phys->outline_resolution != phys->metrics_resolution ) + { + if ( avector->x != 0 ) + avector->x = FT_MulDiv( avector->x, phys->outline_resolution, + phys->metrics_resolution ); + + if ( avector->y != 0 ) + avector->y = FT_MulDiv( avector->x, phys->outline_resolution, + phys->metrics_resolution ); + } + + return PFR_Err_Ok; + } + + + /* + * PFR METRICS SERVICE + * + */ + + FT_CALLBACK_DEF( FT_Error ) + pfr_get_advance( FT_Face pfrface, /* PFR_Face */ + FT_UInt gindex, + FT_Pos *anadvance ) + { + PFR_Face face = (PFR_Face)pfrface; + FT_Error error = PFR_Err_Invalid_Argument; + + + *anadvance = 0; + + if ( !gindex ) + goto Exit; + + gindex--; + + if ( face ) + { + PFR_PhyFont phys = &face->phy_font; + + + if ( gindex < phys->num_chars ) + { + *anadvance = phys->chars[gindex].advance; + error = PFR_Err_Ok; + } + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + pfr_get_metrics( FT_Face pfrface, /* PFR_Face */ + FT_UInt *anoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ) + { + PFR_Face face = (PFR_Face)pfrface; + PFR_PhyFont phys = &face->phy_font; + FT_Fixed x_scale, y_scale; + FT_Size size = face->root.size; + + + if ( anoutline_resolution ) + *anoutline_resolution = phys->outline_resolution; + + if ( ametrics_resolution ) + *ametrics_resolution = phys->metrics_resolution; + + x_scale = 0x10000L; + y_scale = 0x10000L; + + if ( size ) + { + x_scale = FT_DivFix( size->metrics.x_ppem << 6, + phys->metrics_resolution ); + + y_scale = FT_DivFix( size->metrics.y_ppem << 6, + phys->metrics_resolution ); + } + + if ( ametrics_x_scale ) + *ametrics_x_scale = x_scale; + + if ( ametrics_y_scale ) + *ametrics_y_scale = y_scale; + + return PFR_Err_Ok; + } + + + FT_CALLBACK_TABLE_DEF + const FT_Service_PfrMetricsRec pfr_metrics_service_rec = + { + pfr_get_metrics, + pfr_face_get_kerning, + pfr_get_advance + }; + + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec pfr_services[] = + { + { FT_SERVICE_ID_PFR_METRICS, &pfr_metrics_service_rec }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PFR }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + pfr_get_service( FT_Module module, + const FT_String* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( pfr_services, service_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec pfr_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE, + + sizeof( FT_DriverRec ), + + "pfr", + 0x10000L, + 0x20000L, + + NULL, + + 0, + 0, + pfr_get_service + }, + + sizeof( PFR_FaceRec ), + sizeof( PFR_SizeRec ), + sizeof( PFR_SlotRec ), + + pfr_face_init, + pfr_face_done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + pfr_slot_init, + pfr_slot_done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + pfr_slot_load, + + pfr_get_kerning, + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + 0, /* FT_Size_RequestFunc */ + 0, /* FT_Size_SelectFunc */ + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.h new file mode 100644 index 000000000..82f5c1132 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrdrivr.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* pfrdrivr.h */ +/* */ +/* High-level Type PFR driver interface (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRDRIVR_H__ +#define __PFRDRIVR_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) pfr_driver_class; + + +FT_END_HEADER + + +#endif /* __PFRDRIVR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrerror.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrerror.h new file mode 100644 index 000000000..2e1c401dd --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrerror.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* pfrerror.h */ +/* */ +/* PFR error codes (specification only). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PFR error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PFRERROR_H__ +#define __PFRERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX PFR_Err_ +#define FT_ERR_BASE FT_Mod_Err_PFR + +#include FT_ERRORS_H + +#endif /* __PFRERROR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.c new file mode 100644 index 000000000..6f65b01f5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.c @@ -0,0 +1,844 @@ +/***************************************************************************/ +/* */ +/* pfrgload.c */ +/* */ +/* FreeType PFR glyph loader (body). */ +/* */ +/* Copyright 2002, 2003, 2005, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrgload.h" +#include "pfrsbit.h" +#include "pfrload.h" /* for macro definitions */ +#include FT_INTERNAL_DEBUG_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR GLYPH BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( void ) + pfr_glyph_init( PFR_Glyph glyph, + FT_GlyphLoader loader ) + { + FT_ZERO( glyph ); + + glyph->loader = loader; + glyph->path_begun = 0; + + FT_GlyphLoader_Rewind( loader ); + } + + + FT_LOCAL_DEF( void ) + pfr_glyph_done( PFR_Glyph glyph ) + { + FT_Memory memory = glyph->loader->memory; + + + FT_FREE( glyph->x_control ); + glyph->y_control = NULL; + + glyph->max_xy_control = 0; +#if 0 + glyph->num_x_control = 0; + glyph->num_y_control = 0; +#endif + + FT_FREE( glyph->subs ); + + glyph->max_subs = 0; + glyph->num_subs = 0; + + glyph->loader = NULL; + glyph->path_begun = 0; + } + + + /* close current contour, if any */ + static void + pfr_glyph_close_contour( PFR_Glyph glyph ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Outline* outline = &loader->current.outline; + FT_Int last, first; + + + if ( !glyph->path_begun ) + return; + + /* compute first and last point indices in current glyph outline */ + last = outline->n_points - 1; + first = 0; + if ( outline->n_contours > 0 ) + first = outline->contours[outline->n_contours - 1]; + + /* if the last point falls on the same location than the first one */ + /* we need to delete it */ + if ( last > first ) + { + FT_Vector* p1 = outline->points + first; + FT_Vector* p2 = outline->points + last; + + + if ( p1->x == p2->x && p1->y == p2->y ) + { + outline->n_points--; + last--; + } + } + + /* don't add empty contours */ + if ( last >= first ) + outline->contours[outline->n_contours++] = (short)last; + + glyph->path_begun = 0; + } + + + /* reset glyph to start the loading of a new glyph */ + static void + pfr_glyph_start( PFR_Glyph glyph ) + { + glyph->path_begun = 0; + } + + + static FT_Error + pfr_glyph_line_to( PFR_Glyph glyph, + FT_Vector* to ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Outline* outline = &loader->current.outline; + FT_Error error; + + + /* check that we have begun a new path */ + if ( !glyph->path_begun ) + { + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_line_to: invalid glyph data\n" )); + goto Exit; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( loader, 1, 0 ); + if ( !error ) + { + FT_UInt n = outline->n_points; + + + outline->points[n] = *to; + outline->tags [n] = FT_CURVE_TAG_ON; + + outline->n_points++; + } + + Exit: + return error; + } + + + static FT_Error + pfr_glyph_curve_to( PFR_Glyph glyph, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Outline* outline = &loader->current.outline; + FT_Error error; + + + /* check that we have begun a new path */ + if ( !glyph->path_begun ) + { + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_line_to: invalid glyph data\n" )); + goto Exit; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( loader, 3, 0 ); + if ( !error ) + { + FT_Vector* vec = outline->points + outline->n_points; + FT_Byte* tag = (FT_Byte*)outline->tags + outline->n_points; + + + vec[0] = *control1; + vec[1] = *control2; + vec[2] = *to; + tag[0] = FT_CURVE_TAG_CUBIC; + tag[1] = FT_CURVE_TAG_CUBIC; + tag[2] = FT_CURVE_TAG_ON; + + outline->n_points = (FT_Short)( outline->n_points + 3 ); + } + + Exit: + return error; + } + + + static FT_Error + pfr_glyph_move_to( PFR_Glyph glyph, + FT_Vector* to ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Error error; + + + /* close current contour if any */ + pfr_glyph_close_contour( glyph ); + + /* indicate that a new contour has started */ + glyph->path_begun = 1; + + /* check that there is space for a new contour and a new point */ + error = FT_GLYPHLOADER_CHECK_POINTS( loader, 1, 1 ); + if ( !error ) + /* add new start point */ + error = pfr_glyph_line_to( glyph, to ); + + return error; + } + + + static void + pfr_glyph_end( PFR_Glyph glyph ) + { + /* close current contour if any */ + pfr_glyph_close_contour( glyph ); + + /* merge the current glyph into the stack */ + FT_GlyphLoader_Add( glyph->loader ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR GLYPH LOADER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* load a simple glyph */ + static FT_Error + pfr_glyph_load_simple( PFR_Glyph glyph, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Error error = PFR_Err_Ok; + FT_Memory memory = glyph->loader->memory; + FT_UInt flags, x_count, y_count, i, count, mask; + FT_Int x; + + + PFR_CHECK( 1 ); + flags = PFR_NEXT_BYTE( p ); + + /* test for composite glyphs */ + if ( flags & PFR_GLYPH_IS_COMPOUND ) + goto Failure; + + x_count = 0; + y_count = 0; + + if ( flags & PFR_GLYPH_1BYTE_XYCOUNT ) + { + PFR_CHECK( 1 ); + count = PFR_NEXT_BYTE( p ); + x_count = count & 15; + y_count = count >> 4; + } + else + { + if ( flags & PFR_GLYPH_XCOUNT ) + { + PFR_CHECK( 1 ); + x_count = PFR_NEXT_BYTE( p ); + } + + if ( flags & PFR_GLYPH_YCOUNT ) + { + PFR_CHECK( 1 ); + y_count = PFR_NEXT_BYTE( p ); + } + } + + count = x_count + y_count; + + /* re-allocate array when necessary */ + if ( count > glyph->max_xy_control ) + { + FT_UInt new_max = FT_PAD_CEIL( count, 8 ); + + + if ( FT_RENEW_ARRAY( glyph->x_control, + glyph->max_xy_control, + new_max ) ) + goto Exit; + + glyph->max_xy_control = new_max; + } + + glyph->y_control = glyph->x_control + x_count; + + mask = 0; + x = 0; + + for ( i = 0; i < count; i++ ) + { + if ( ( i & 7 ) == 0 ) + { + PFR_CHECK( 1 ); + mask = PFR_NEXT_BYTE( p ); + } + + if ( mask & 1 ) + { + PFR_CHECK( 2 ); + x = PFR_NEXT_SHORT( p ); + } + else + { + PFR_CHECK( 1 ); + x += PFR_NEXT_BYTE( p ); + } + + glyph->x_control[i] = x; + + mask >>= 1; + } + + /* XXX: for now we ignore the secondary stroke and edge definitions */ + /* since we don't want to support native PFR hinting */ + /* */ + if ( flags & PFR_GLYPH_EXTRA_ITEMS ) + { + error = pfr_extra_items_skip( &p, limit ); + if ( error ) + goto Exit; + } + + pfr_glyph_start( glyph ); + + /* now load a simple glyph */ + { + FT_Vector pos[4]; + FT_Vector* cur; + + + pos[0].x = pos[0].y = 0; + pos[3] = pos[0]; + + for (;;) + { + FT_UInt format, format_low, args_format = 0, args_count, n; + + + /***************************************************************/ + /* read instruction */ + /* */ + PFR_CHECK( 1 ); + format = PFR_NEXT_BYTE( p ); + format_low = format & 15; + + switch ( format >> 4 ) + { + case 0: /* end glyph */ + FT_TRACE6(( "- end glyph" )); + args_count = 0; + break; + + case 1: /* general line operation */ + FT_TRACE6(( "- general line" )); + goto Line1; + + case 4: /* move to inside contour */ + FT_TRACE6(( "- move to inside" )); + goto Line1; + + case 5: /* move to outside contour */ + FT_TRACE6(( "- move to outside" )); + Line1: + args_format = format_low; + args_count = 1; + break; + + case 2: /* horizontal line to */ + FT_TRACE6(( "- horizontal line to cx.%d", format_low )); + if ( format_low >= x_count ) + goto Failure; + pos[0].x = glyph->x_control[format_low]; + pos[0].y = pos[3].y; + pos[3] = pos[0]; + args_count = 0; + break; + + case 3: /* vertical line to */ + FT_TRACE6(( "- vertical line to cy.%d", format_low )); + if ( format_low >= y_count ) + goto Failure; + pos[0].x = pos[3].x; + pos[0].y = glyph->y_control[format_low]; + pos[3] = pos[0]; + args_count = 0; + break; + + case 6: /* horizontal to vertical curve */ + FT_TRACE6(( "- hv curve " )); + args_format = 0xB8E; + args_count = 3; + break; + + case 7: /* vertical to horizontal curve */ + FT_TRACE6(( "- vh curve" )); + args_format = 0xE2B; + args_count = 3; + break; + + default: /* general curve to */ + FT_TRACE6(( "- general curve" )); + args_count = 4; + args_format = format_low; + } + + /***********************************************************/ + /* now read arguments */ + /* */ + cur = pos; + for ( n = 0; n < args_count; n++ ) + { + FT_UInt idx; + FT_Int delta; + + + /* read the X argument */ + switch ( args_format & 3 ) + { + case 0: /* 8-bit index */ + PFR_CHECK( 1 ); + idx = PFR_NEXT_BYTE( p ); + if ( idx >= x_count ) + goto Failure; + cur->x = glyph->x_control[idx]; + FT_TRACE7(( " cx#%d", idx )); + break; + + case 1: /* 16-bit value */ + PFR_CHECK( 2 ); + cur->x = PFR_NEXT_SHORT( p ); + FT_TRACE7(( " x.%d", cur->x )); + break; + + case 2: /* 8-bit delta */ + PFR_CHECK( 1 ); + delta = PFR_NEXT_INT8( p ); + cur->x = pos[3].x + delta; + FT_TRACE7(( " dx.%d", delta )); + break; + + default: + FT_TRACE7(( " |" )); + cur->x = pos[3].x; + } + + /* read the Y argument */ + switch ( ( args_format >> 2 ) & 3 ) + { + case 0: /* 8-bit index */ + PFR_CHECK( 1 ); + idx = PFR_NEXT_BYTE( p ); + if ( idx >= y_count ) + goto Failure; + cur->y = glyph->y_control[idx]; + FT_TRACE7(( " cy#%d", idx )); + break; + + case 1: /* 16-bit absolute value */ + PFR_CHECK( 2 ); + cur->y = PFR_NEXT_SHORT( p ); + FT_TRACE7(( " y.%d", cur->y )); + break; + + case 2: /* 8-bit delta */ + PFR_CHECK( 1 ); + delta = PFR_NEXT_INT8( p ); + cur->y = pos[3].y + delta; + FT_TRACE7(( " dy.%d", delta )); + break; + + default: + FT_TRACE7(( " -" )); + cur->y = pos[3].y; + } + + /* read the additional format flag for the general curve */ + if ( n == 0 && args_count == 4 ) + { + PFR_CHECK( 1 ); + args_format = PFR_NEXT_BYTE( p ); + args_count--; + } + else + args_format >>= 4; + + /* save the previous point */ + pos[3] = cur[0]; + cur++; + } + + FT_TRACE7(( "\n" )); + + /***********************************************************/ + /* finally, execute instruction */ + /* */ + switch ( format >> 4 ) + { + case 0: /* end glyph => EXIT */ + pfr_glyph_end( glyph ); + goto Exit; + + case 1: /* line operations */ + case 2: + case 3: + error = pfr_glyph_line_to( glyph, pos ); + goto Test_Error; + + case 4: /* move to inside contour */ + case 5: /* move to outside contour */ + error = pfr_glyph_move_to( glyph, pos ); + goto Test_Error; + + default: /* curve operations */ + error = pfr_glyph_curve_to( glyph, pos, pos + 1, pos + 2 ); + + Test_Error: /* test error condition */ + if ( error ) + goto Exit; + } + } /* for (;;) */ + } + + Exit: + return error; + + Failure: + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_load_simple: invalid glyph data\n" )); + goto Exit; + } + + + /* load a composite/compound glyph */ + static FT_Error + pfr_glyph_load_compound( PFR_Glyph glyph, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Error error = PFR_Err_Ok; + FT_GlyphLoader loader = glyph->loader; + FT_Memory memory = loader->memory; + PFR_SubGlyph subglyph; + FT_UInt flags, i, count, org_count; + FT_Int x_pos, y_pos; + + + PFR_CHECK( 1 ); + flags = PFR_NEXT_BYTE( p ); + + /* test for composite glyphs */ + if ( !( flags & PFR_GLYPH_IS_COMPOUND ) ) + goto Failure; + + count = flags & 0x3F; + + /* ignore extra items when present */ + /* */ + if ( flags & PFR_GLYPH_EXTRA_ITEMS ) + { + error = pfr_extra_items_skip( &p, limit ); + if (error) goto Exit; + } + + /* we can't rely on the FT_GlyphLoader to load sub-glyphs, because */ + /* the PFR format is dumb, using direct file offsets to point to the */ + /* sub-glyphs (instead of glyph indices). Sigh. */ + /* */ + /* For now, we load the list of sub-glyphs into a different array */ + /* but this will prevent us from using the auto-hinter at its best */ + /* quality. */ + /* */ + org_count = glyph->num_subs; + + if ( org_count + count > glyph->max_subs ) + { + FT_UInt new_max = ( org_count + count + 3 ) & (FT_UInt)-4; + + + /* we arbitrarily limit the number of subglyphs */ + /* to avoid endless recursion */ + if ( new_max > 64 ) + { + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_load_compound:" + " too many compound glyphs components\n" )); + goto Exit; + } + + if ( FT_RENEW_ARRAY( glyph->subs, glyph->max_subs, new_max ) ) + goto Exit; + + glyph->max_subs = new_max; + } + + subglyph = glyph->subs + org_count; + + for ( i = 0; i < count; i++, subglyph++ ) + { + FT_UInt format; + + + x_pos = 0; + y_pos = 0; + + PFR_CHECK( 1 ); + format = PFR_NEXT_BYTE( p ); + + /* read scale when available */ + subglyph->x_scale = 0x10000L; + if ( format & PFR_SUBGLYPH_XSCALE ) + { + PFR_CHECK( 2 ); + subglyph->x_scale = PFR_NEXT_SHORT( p ) << 4; + } + + subglyph->y_scale = 0x10000L; + if ( format & PFR_SUBGLYPH_YSCALE ) + { + PFR_CHECK( 2 ); + subglyph->y_scale = PFR_NEXT_SHORT( p ) << 4; + } + + /* read offset */ + switch ( format & 3 ) + { + case 1: + PFR_CHECK( 2 ); + x_pos = PFR_NEXT_SHORT( p ); + break; + + case 2: + PFR_CHECK( 1 ); + x_pos += PFR_NEXT_INT8( p ); + break; + + default: + ; + } + + switch ( ( format >> 2 ) & 3 ) + { + case 1: + PFR_CHECK( 2 ); + y_pos = PFR_NEXT_SHORT( p ); + break; + + case 2: + PFR_CHECK( 1 ); + y_pos += PFR_NEXT_INT8( p ); + break; + + default: + ; + } + + subglyph->x_delta = x_pos; + subglyph->y_delta = y_pos; + + /* read glyph position and size now */ + if ( format & PFR_SUBGLYPH_2BYTE_SIZE ) + { + PFR_CHECK( 2 ); + subglyph->gps_size = PFR_NEXT_USHORT( p ); + } + else + { + PFR_CHECK( 1 ); + subglyph->gps_size = PFR_NEXT_BYTE( p ); + } + + if ( format & PFR_SUBGLYPH_3BYTE_OFFSET ) + { + PFR_CHECK( 3 ); + subglyph->gps_offset = PFR_NEXT_LONG( p ); + } + else + { + PFR_CHECK( 2 ); + subglyph->gps_offset = PFR_NEXT_USHORT( p ); + } + + glyph->num_subs++; + } + + Exit: + return error; + + Failure: + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_load_compound: invalid glyph data\n" )); + goto Exit; + } + + + static FT_Error + pfr_glyph_load_rec( PFR_Glyph glyph, + FT_Stream stream, + FT_ULong gps_offset, + FT_ULong offset, + FT_ULong size ) + { + FT_Error error; + FT_Byte* p; + FT_Byte* limit; + + + if ( FT_STREAM_SEEK( gps_offset + offset ) || + FT_FRAME_ENTER( size ) ) + goto Exit; + + p = (FT_Byte*)stream->cursor; + limit = p + size; + + if ( size > 0 && *p & PFR_GLYPH_IS_COMPOUND ) + { + FT_Int n, old_count, count; + FT_GlyphLoader loader = glyph->loader; + FT_Outline* base = &loader->base.outline; + + + old_count = glyph->num_subs; + + /* this is a compound glyph - load it */ + error = pfr_glyph_load_compound( glyph, p, limit ); + + FT_FRAME_EXIT(); + + if ( error ) + goto Exit; + + count = glyph->num_subs - old_count; + + FT_TRACE4(( "compound glyph with %d elements (offset %lu):\n", + count, offset )); + + /* now, load each individual glyph */ + for ( n = 0; n < count; n++ ) + { + FT_Int i, old_points, num_points; + PFR_SubGlyph subglyph; + + + FT_TRACE4(( "subglyph %d:\n", n )); + + subglyph = glyph->subs + old_count + n; + old_points = base->n_points; + + error = pfr_glyph_load_rec( glyph, stream, gps_offset, + subglyph->gps_offset, + subglyph->gps_size ); + if ( error ) + break; + + /* note that `glyph->subs' might have been re-allocated */ + subglyph = glyph->subs + old_count + n; + num_points = base->n_points - old_points; + + /* translate and eventually scale the new glyph points */ + if ( subglyph->x_scale != 0x10000L || subglyph->y_scale != 0x10000L ) + { + FT_Vector* vec = base->points + old_points; + + + for ( i = 0; i < num_points; i++, vec++ ) + { + vec->x = FT_MulFix( vec->x, subglyph->x_scale ) + + subglyph->x_delta; + vec->y = FT_MulFix( vec->y, subglyph->y_scale ) + + subglyph->y_delta; + } + } + else + { + FT_Vector* vec = loader->base.outline.points + old_points; + + + for ( i = 0; i < num_points; i++, vec++ ) + { + vec->x += subglyph->x_delta; + vec->y += subglyph->y_delta; + } + } + + /* proceed to next sub-glyph */ + } + + FT_TRACE4(( "end compound glyph with %d elements\n", count )); + } + else + { + FT_TRACE4(( "simple glyph (offset %lu)\n", offset )); + + /* load a simple glyph */ + error = pfr_glyph_load_simple( glyph, p, limit ); + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_glyph_load( PFR_Glyph glyph, + FT_Stream stream, + FT_ULong gps_offset, + FT_ULong offset, + FT_ULong size ) + { + /* initialize glyph loader */ + FT_GlyphLoader_Rewind( glyph->loader ); + + glyph->num_subs = 0; + + /* load the glyph, recursively when needed */ + return pfr_glyph_load_rec( glyph, stream, gps_offset, offset, size ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.h new file mode 100644 index 000000000..7cc7a8702 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrgload.h @@ -0,0 +1,49 @@ +/***************************************************************************/ +/* */ +/* pfrgload.h */ +/* */ +/* FreeType PFR glyph loader (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRGLOAD_H__ +#define __PFRGLOAD_H__ + +#include "pfrtypes.h" + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + pfr_glyph_init( PFR_Glyph glyph, + FT_GlyphLoader loader ); + + FT_LOCAL( void ) + pfr_glyph_done( PFR_Glyph glyph ); + + + FT_LOCAL( FT_Error ) + pfr_glyph_load( PFR_Glyph glyph, + FT_Stream stream, + FT_ULong gps_offset, + FT_ULong offset, + FT_ULong size ); + + +FT_END_HEADER + + +#endif /* __PFRGLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrload.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfrload.c new file mode 100644 index 000000000..325322e98 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrload.c @@ -0,0 +1,941 @@ +/***************************************************************************/ +/* */ +/* pfrload.c */ +/* */ +/* FreeType PFR loader (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2007, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrload.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** EXTRA ITEMS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + pfr_extra_items_skip( FT_Byte* *pp, + FT_Byte* limit ) + { + return pfr_extra_items_parse( pp, limit, NULL, NULL ); + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_extra_items_parse( FT_Byte* *pp, + FT_Byte* limit, + PFR_ExtraItem item_list, + FT_Pointer item_data ) + { + FT_Error error = PFR_Err_Ok; + FT_Byte* p = *pp; + FT_UInt num_items, item_type, item_size; + + + PFR_CHECK( 1 ); + num_items = PFR_NEXT_BYTE( p ); + + for ( ; num_items > 0; num_items-- ) + { + PFR_CHECK( 2 ); + item_size = PFR_NEXT_BYTE( p ); + item_type = PFR_NEXT_BYTE( p ); + + PFR_CHECK( item_size ); + + if ( item_list ) + { + PFR_ExtraItem extra = item_list; + + + for ( extra = item_list; extra->parser != NULL; extra++ ) + { + if ( extra->type == item_type ) + { + error = extra->parser( p, p + item_size, item_data ); + if ( error ) goto Exit; + + break; + } + } + } + + p += item_size; + } + + Exit: + *pp = p; + return error; + + Too_Short: + FT_ERROR(( "pfr_extra_items_parse: invalid extra items table\n" )); + error = PFR_Err_Invalid_Table; + goto Exit; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR HEADER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static const FT_Frame_Field pfr_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PFR_HeaderRec + + FT_FRAME_START( 58 ), + FT_FRAME_ULONG ( signature ), + FT_FRAME_USHORT( version ), + FT_FRAME_USHORT( signature2 ), + FT_FRAME_USHORT( header_size ), + + FT_FRAME_USHORT( log_dir_size ), + FT_FRAME_USHORT( log_dir_offset ), + + FT_FRAME_USHORT( log_font_max_size ), + FT_FRAME_UOFF3 ( log_font_section_size ), + FT_FRAME_UOFF3 ( log_font_section_offset ), + + FT_FRAME_USHORT( phy_font_max_size ), + FT_FRAME_UOFF3 ( phy_font_section_size ), + FT_FRAME_UOFF3 ( phy_font_section_offset ), + + FT_FRAME_USHORT( gps_max_size ), + FT_FRAME_UOFF3 ( gps_section_size ), + FT_FRAME_UOFF3 ( gps_section_offset ), + + FT_FRAME_BYTE ( max_blue_values ), + FT_FRAME_BYTE ( max_x_orus ), + FT_FRAME_BYTE ( max_y_orus ), + + FT_FRAME_BYTE ( phy_font_max_size_high ), + FT_FRAME_BYTE ( color_flags ), + + FT_FRAME_UOFF3 ( bct_max_size ), + FT_FRAME_UOFF3 ( bct_set_max_size ), + FT_FRAME_UOFF3 ( phy_bct_set_max_size ), + + FT_FRAME_USHORT( num_phy_fonts ), + FT_FRAME_BYTE ( max_vert_stem_snap ), + FT_FRAME_BYTE ( max_horz_stem_snap ), + FT_FRAME_USHORT( max_chars ), + FT_FRAME_END + }; + + + FT_LOCAL_DEF( FT_Error ) + pfr_header_load( PFR_Header header, + FT_Stream stream ) + { + FT_Error error; + + + /* read header directly */ + if ( !FT_STREAM_SEEK( 0 ) && + !FT_STREAM_READ_FIELDS( pfr_header_fields, header ) ) + { + /* make a few adjustments to the header */ + header->phy_font_max_size += + (FT_UInt32)header->phy_font_max_size_high << 16; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Bool ) + pfr_header_check( PFR_Header header ) + { + FT_Bool result = 1; + + + /* check signature and header size */ + if ( header->signature != 0x50465230L || /* "PFR0" */ + header->version > 4 || + header->header_size < 58 || + header->signature2 != 0x0d0a ) /* CR/LF */ + { + result = 0; + } + return result; + } + + + /***********************************************************************/ + /***********************************************************************/ + /***** *****/ + /***** PFR LOGICAL FONTS *****/ + /***** *****/ + /***********************************************************************/ + /***********************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + pfr_log_font_count( FT_Stream stream, + FT_UInt32 section_offset, + FT_UInt *acount ) + { + FT_Error error; + FT_UInt count; + FT_UInt result = 0; + + + if ( FT_STREAM_SEEK( section_offset ) || FT_READ_USHORT( count ) ) + goto Exit; + + result = count; + + Exit: + *acount = result; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_log_font_load( PFR_LogFont log_font, + FT_Stream stream, + FT_UInt idx, + FT_UInt32 section_offset, + FT_Bool size_increment ) + { + FT_UInt num_log_fonts; + FT_UInt flags; + FT_UInt32 offset; + FT_UInt32 size; + FT_Error error; + + + if ( FT_STREAM_SEEK( section_offset ) || + FT_READ_USHORT( num_log_fonts ) ) + goto Exit; + + if ( idx >= num_log_fonts ) + return PFR_Err_Invalid_Argument; + + if ( FT_STREAM_SKIP( idx * 5 ) || + FT_READ_USHORT( size ) || + FT_READ_UOFF3 ( offset ) ) + goto Exit; + + /* save logical font size and offset */ + log_font->size = size; + log_font->offset = offset; + + /* now, check the rest of the table before loading it */ + { + FT_Byte* p; + FT_Byte* limit; + FT_UInt local; + + + if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( size ) ) + goto Exit; + + p = stream->cursor; + limit = p + size; + + PFR_CHECK(13); + + log_font->matrix[0] = PFR_NEXT_LONG( p ); + log_font->matrix[1] = PFR_NEXT_LONG( p ); + log_font->matrix[2] = PFR_NEXT_LONG( p ); + log_font->matrix[3] = PFR_NEXT_LONG( p ); + + flags = PFR_NEXT_BYTE( p ); + + local = 0; + if ( flags & PFR_LOG_STROKE ) + { + local++; + if ( flags & PFR_LOG_2BYTE_STROKE ) + local++; + + if ( (flags & PFR_LINE_JOIN_MASK) == PFR_LINE_JOIN_MITER ) + local += 3; + } + if ( flags & PFR_LOG_BOLD ) + { + local++; + if ( flags & PFR_LOG_2BYTE_BOLD ) + local++; + } + + PFR_CHECK( local ); + + if ( flags & PFR_LOG_STROKE ) + { + log_font->stroke_thickness = ( flags & PFR_LOG_2BYTE_STROKE ) + ? PFR_NEXT_SHORT( p ) + : PFR_NEXT_BYTE( p ); + + if ( ( flags & PFR_LINE_JOIN_MASK ) == PFR_LINE_JOIN_MITER ) + log_font->miter_limit = PFR_NEXT_LONG( p ); + } + + if ( flags & PFR_LOG_BOLD ) + { + log_font->bold_thickness = ( flags & PFR_LOG_2BYTE_BOLD ) + ? PFR_NEXT_SHORT( p ) + : PFR_NEXT_BYTE( p ); + } + + if ( flags & PFR_LOG_EXTRA_ITEMS ) + { + error = pfr_extra_items_skip( &p, limit ); + if (error) goto Fail; + } + + PFR_CHECK(5); + log_font->phys_size = PFR_NEXT_USHORT( p ); + log_font->phys_offset = PFR_NEXT_ULONG( p ); + if ( size_increment ) + { + PFR_CHECK( 1 ); + log_font->phys_size += (FT_UInt32)PFR_NEXT_BYTE( p ) << 16; + } + } + + Fail: + FT_FRAME_EXIT(); + + Exit: + return error; + + Too_Short: + FT_ERROR(( "pfr_log_font_load: invalid logical font table\n" )); + error = PFR_Err_Invalid_Table; + goto Fail; + } + + + /***********************************************************************/ + /***********************************************************************/ + /***** *****/ + /***** PFR PHYSICAL FONTS *****/ + /***** *****/ + /***********************************************************************/ + /***********************************************************************/ + + + /* load bitmap strikes lists */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_bitmap_info( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + FT_Memory memory = phy_font->memory; + PFR_Strike strike; + FT_UInt flags0; + FT_UInt n, count, size1; + FT_Error error = PFR_Err_Ok; + + + PFR_CHECK( 5 ); + + p += 3; /* skip bctSize */ + flags0 = PFR_NEXT_BYTE( p ); + count = PFR_NEXT_BYTE( p ); + + /* re-allocate when needed */ + if ( phy_font->num_strikes + count > phy_font->max_strikes ) + { + FT_UInt new_max = FT_PAD_CEIL( phy_font->num_strikes + count, 4 ); + + + if ( FT_RENEW_ARRAY( phy_font->strikes, + phy_font->num_strikes, + new_max ) ) + goto Exit; + + phy_font->max_strikes = new_max; + } + + size1 = 1 + 1 + 1 + 2 + 2 + 1; + if ( flags0 & PFR_STRIKE_2BYTE_XPPM ) + size1++; + + if ( flags0 & PFR_STRIKE_2BYTE_YPPM ) + size1++; + + if ( flags0 & PFR_STRIKE_3BYTE_SIZE ) + size1++; + + if ( flags0 & PFR_STRIKE_3BYTE_OFFSET ) + size1++; + + if ( flags0 & PFR_STRIKE_2BYTE_COUNT ) + size1++; + + strike = phy_font->strikes + phy_font->num_strikes; + + PFR_CHECK( count * size1 ); + + for ( n = 0; n < count; n++, strike++ ) + { + strike->x_ppm = ( flags0 & PFR_STRIKE_2BYTE_XPPM ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + strike->y_ppm = ( flags0 & PFR_STRIKE_2BYTE_YPPM ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + strike->flags = PFR_NEXT_BYTE( p ); + + strike->bct_size = ( flags0 & PFR_STRIKE_3BYTE_SIZE ) + ? PFR_NEXT_ULONG( p ) + : PFR_NEXT_USHORT( p ); + + strike->bct_offset = ( flags0 & PFR_STRIKE_3BYTE_OFFSET ) + ? PFR_NEXT_ULONG( p ) + : PFR_NEXT_USHORT( p ); + + strike->num_bitmaps = ( flags0 & PFR_STRIKE_2BYTE_COUNT ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + } + + phy_font->num_strikes += count; + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_extra_item_load_bitmap_info:" + " invalid bitmap info table\n" )); + goto Exit; + } + + + /* Load font ID. This is a so-called "unique" name that is rather + * long and descriptive (like "Tiresias ScreenFont v7.51"). + * + * Note that a PFR font's family name is contained in an *undocumented* + * string of the "auxiliary data" portion of a physical font record. This + * may also contain the "real" style name! + * + * If no family name is present, the font ID is used instead for the + * family. + */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_font_id( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + FT_Error error = PFR_Err_Ok; + FT_Memory memory = phy_font->memory; + FT_PtrDist len = limit - p; + + + if ( phy_font->font_id != NULL ) + goto Exit; + + if ( FT_ALLOC( phy_font->font_id, len + 1 ) ) + goto Exit; + + /* copy font ID name, and terminate it for safety */ + FT_MEM_COPY( phy_font->font_id, p, len ); + phy_font->font_id[len] = 0; + + Exit: + return error; + } + + + /* load stem snap tables */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_stem_snaps( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + FT_UInt count, num_vert, num_horz; + FT_Int* snaps = NULL; + FT_Error error = PFR_Err_Ok; + FT_Memory memory = phy_font->memory; + + + if ( phy_font->vertical.stem_snaps != NULL ) + goto Exit; + + PFR_CHECK( 1 ); + count = PFR_NEXT_BYTE( p ); + + num_vert = count & 15; + num_horz = count >> 4; + count = num_vert + num_horz; + + PFR_CHECK( count * 2 ); + + if ( FT_NEW_ARRAY( snaps, count ) ) + goto Exit; + + phy_font->vertical.stem_snaps = snaps; + phy_font->horizontal.stem_snaps = snaps + num_vert; + + for ( ; count > 0; count--, snaps++ ) + *snaps = FT_NEXT_SHORT( p ); + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_exta_item_load_stem_snaps:" + " invalid stem snaps table\n" )); + goto Exit; + } + + + + /* load kerning pair data */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_kerning_pairs( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + PFR_KernItem item = NULL; + FT_Error error = PFR_Err_Ok; + FT_Memory memory = phy_font->memory; + + + FT_TRACE2(( "pfr_extra_item_load_kerning_pairs()\n" )); + + if ( FT_NEW( item ) ) + goto Exit; + + PFR_CHECK( 4 ); + + item->pair_count = PFR_NEXT_BYTE( p ); + item->base_adj = PFR_NEXT_SHORT( p ); + item->flags = PFR_NEXT_BYTE( p ); + item->offset = phy_font->offset + ( p - phy_font->cursor ); + +#ifndef PFR_CONFIG_NO_CHECKS + item->pair_size = 3; + + if ( item->flags & PFR_KERN_2BYTE_CHAR ) + item->pair_size += 2; + + if ( item->flags & PFR_KERN_2BYTE_ADJ ) + item->pair_size += 1; + + PFR_CHECK( item->pair_count * item->pair_size ); +#endif + + /* load first and last pairs into the item to speed up */ + /* lookup later... */ + if ( item->pair_count > 0 ) + { + FT_UInt char1, char2; + FT_Byte* q; + + + if ( item->flags & PFR_KERN_2BYTE_CHAR ) + { + q = p; + char1 = PFR_NEXT_USHORT( q ); + char2 = PFR_NEXT_USHORT( q ); + + item->pair1 = PFR_KERN_INDEX( char1, char2 ); + + q = p + item->pair_size * ( item->pair_count - 1 ); + char1 = PFR_NEXT_USHORT( q ); + char2 = PFR_NEXT_USHORT( q ); + + item->pair2 = PFR_KERN_INDEX( char1, char2 ); + } + else + { + q = p; + char1 = PFR_NEXT_BYTE( q ); + char2 = PFR_NEXT_BYTE( q ); + + item->pair1 = PFR_KERN_INDEX( char1, char2 ); + + q = p + item->pair_size * ( item->pair_count - 1 ); + char1 = PFR_NEXT_BYTE( q ); + char2 = PFR_NEXT_BYTE( q ); + + item->pair2 = PFR_KERN_INDEX( char1, char2 ); + } + + /* add new item to the current list */ + item->next = NULL; + *phy_font->kern_items_tail = item; + phy_font->kern_items_tail = &item->next; + phy_font->num_kern_pairs += item->pair_count; + } + else + { + /* empty item! */ + FT_FREE( item ); + } + + Exit: + return error; + + Too_Short: + FT_FREE( item ); + + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_extra_item_load_kerning_pairs:" + " invalid kerning pairs table\n" )); + goto Exit; + } + + + + static const PFR_ExtraItemRec pfr_phy_font_extra_items[] = + { + { 1, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_bitmap_info }, + { 2, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_font_id }, + { 3, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_stem_snaps }, + { 4, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_kerning_pairs }, + { 0, NULL } + }; + + + /* Loads a name from the auxiliary data. Since this extracts undocumented + * strings from the font file, we need to be careful here. + */ + static FT_Error + pfr_aux_name_load( FT_Byte* p, + FT_UInt len, + FT_Memory memory, + FT_String* *astring ) + { + FT_Error error = PFR_Err_Ok; + FT_String* result = NULL; + FT_UInt n, ok; + + + if ( len > 0 && p[len - 1] == 0 ) + len--; + + /* check that each character is ASCII for making sure not to + load garbage + */ + ok = ( len > 0 ); + for ( n = 0; n < len; n++ ) + if ( p[n] < 32 || p[n] > 127 ) + { + ok = 0; + break; + } + + if ( ok ) + { + if ( FT_ALLOC( result, len + 1 ) ) + goto Exit; + + FT_MEM_COPY( result, p, len ); + result[len] = 0; + } + Exit: + *astring = result; + return error; + } + + + FT_LOCAL_DEF( void ) + pfr_phy_font_done( PFR_PhyFont phy_font, + FT_Memory memory ) + { + FT_FREE( phy_font->font_id ); + FT_FREE( phy_font->family_name ); + FT_FREE( phy_font->style_name ); + + FT_FREE( phy_font->vertical.stem_snaps ); + phy_font->vertical.num_stem_snaps = 0; + + phy_font->horizontal.stem_snaps = NULL; + phy_font->horizontal.num_stem_snaps = 0; + + FT_FREE( phy_font->strikes ); + phy_font->num_strikes = 0; + phy_font->max_strikes = 0; + + FT_FREE( phy_font->chars ); + phy_font->num_chars = 0; + phy_font->chars_offset = 0; + + FT_FREE( phy_font->blue_values ); + phy_font->num_blue_values = 0; + + { + PFR_KernItem item, next; + + + item = phy_font->kern_items; + while ( item ) + { + next = item->next; + FT_FREE( item ); + item = next; + } + phy_font->kern_items = NULL; + phy_font->kern_items_tail = NULL; + } + + phy_font->num_kern_pairs = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_phy_font_load( PFR_PhyFont phy_font, + FT_Stream stream, + FT_UInt32 offset, + FT_UInt32 size ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_UInt flags; + FT_ULong num_aux; + FT_Byte* p; + FT_Byte* limit; + + + phy_font->memory = memory; + phy_font->offset = offset; + + phy_font->kern_items = NULL; + phy_font->kern_items_tail = &phy_font->kern_items; + + if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( size ) ) + goto Exit; + + phy_font->cursor = stream->cursor; + + p = stream->cursor; + limit = p + size; + + PFR_CHECK( 15 ); + phy_font->font_ref_number = PFR_NEXT_USHORT( p ); + phy_font->outline_resolution = PFR_NEXT_USHORT( p ); + phy_font->metrics_resolution = PFR_NEXT_USHORT( p ); + phy_font->bbox.xMin = PFR_NEXT_SHORT( p ); + phy_font->bbox.yMin = PFR_NEXT_SHORT( p ); + phy_font->bbox.xMax = PFR_NEXT_SHORT( p ); + phy_font->bbox.yMax = PFR_NEXT_SHORT( p ); + phy_font->flags = flags = PFR_NEXT_BYTE( p ); + + /* get the standard advance for non-proportional fonts */ + if ( !(flags & PFR_PHY_PROPORTIONAL) ) + { + PFR_CHECK( 2 ); + phy_font->standard_advance = PFR_NEXT_SHORT( p ); + } + + /* load the extra items when present */ + if ( flags & PFR_PHY_EXTRA_ITEMS ) + { + error = pfr_extra_items_parse( &p, limit, + pfr_phy_font_extra_items, phy_font ); + + if ( error ) + goto Fail; + } + + /* In certain fonts, the auxiliary bytes contain interesting */ + /* information. These are not in the specification but can be */ + /* guessed by looking at the content of a few PFR0 fonts. */ + PFR_CHECK( 3 ); + num_aux = PFR_NEXT_ULONG( p ); + + if ( num_aux > 0 ) + { + FT_Byte* q = p; + FT_Byte* q2; + + + PFR_CHECK( num_aux ); + p += num_aux; + + while ( num_aux > 0 ) + { + FT_UInt length, type; + + + if ( q + 4 > p ) + break; + + length = PFR_NEXT_USHORT( q ); + if ( length < 4 || length > num_aux ) + break; + + q2 = q + length - 2; + type = PFR_NEXT_USHORT( q ); + + switch ( type ) + { + case 1: + /* this seems to correspond to the font's family name, + * padded to 16-bits with one zero when necessary + */ + error = pfr_aux_name_load( q, length - 4U, memory, + &phy_font->family_name ); + if ( error ) + goto Exit; + break; + + case 2: + if ( q + 32 > q2 ) + break; + + q += 10; + phy_font->ascent = PFR_NEXT_SHORT( q ); + phy_font->descent = PFR_NEXT_SHORT( q ); + phy_font->leading = PFR_NEXT_SHORT( q ); + q += 16; + break; + + case 3: + /* this seems to correspond to the font's style name, + * padded to 16-bits with one zero when necessary + */ + error = pfr_aux_name_load( q, length - 4U, memory, + &phy_font->style_name ); + if ( error ) + goto Exit; + break; + + default: + ; + } + + q = q2; + num_aux -= length; + } + } + + /* read the blue values */ + { + FT_UInt n, count; + + + PFR_CHECK( 1 ); + phy_font->num_blue_values = count = PFR_NEXT_BYTE( p ); + + PFR_CHECK( count * 2 ); + + if ( FT_NEW_ARRAY( phy_font->blue_values, count ) ) + goto Fail; + + for ( n = 0; n < count; n++ ) + phy_font->blue_values[n] = PFR_NEXT_SHORT( p ); + } + + PFR_CHECK( 8 ); + phy_font->blue_fuzz = PFR_NEXT_BYTE( p ); + phy_font->blue_scale = PFR_NEXT_BYTE( p ); + + phy_font->vertical.standard = PFR_NEXT_USHORT( p ); + phy_font->horizontal.standard = PFR_NEXT_USHORT( p ); + + /* read the character descriptors */ + { + FT_UInt n, count, Size; + + + phy_font->num_chars = count = PFR_NEXT_USHORT( p ); + phy_font->chars_offset = offset + ( p - stream->cursor ); + + if ( FT_NEW_ARRAY( phy_font->chars, count ) ) + goto Fail; + + Size = 1 + 1 + 2; + if ( flags & PFR_PHY_2BYTE_CHARCODE ) + Size += 1; + + if ( flags & PFR_PHY_PROPORTIONAL ) + Size += 2; + + if ( flags & PFR_PHY_ASCII_CODE ) + Size += 1; + + if ( flags & PFR_PHY_2BYTE_GPS_SIZE ) + Size += 1; + + if ( flags & PFR_PHY_3BYTE_GPS_OFFSET ) + Size += 1; + + PFR_CHECK( count * Size ); + + for ( n = 0; n < count; n++ ) + { + PFR_Char cur = &phy_font->chars[n]; + + + cur->char_code = ( flags & PFR_PHY_2BYTE_CHARCODE ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + cur->advance = ( flags & PFR_PHY_PROPORTIONAL ) + ? PFR_NEXT_SHORT( p ) + : (FT_Int) phy_font->standard_advance; + +#if 0 + cur->ascii = ( flags & PFR_PHY_ASCII_CODE ) + ? PFR_NEXT_BYTE( p ) + : 0; +#else + if ( flags & PFR_PHY_ASCII_CODE ) + p += 1; +#endif + cur->gps_size = ( flags & PFR_PHY_2BYTE_GPS_SIZE ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + cur->gps_offset = ( flags & PFR_PHY_3BYTE_GPS_OFFSET ) + ? PFR_NEXT_ULONG( p ) + : PFR_NEXT_USHORT( p ); + } + } + + /* that's it! */ + + Fail: + FT_FRAME_EXIT(); + + /* save position of bitmap info */ + phy_font->bct_offset = FT_STREAM_POS(); + phy_font->cursor = NULL; + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_phy_font_load: invalid physical font table\n" )); + goto Fail; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrload.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrload.h new file mode 100644 index 000000000..ed010715d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrload.h @@ -0,0 +1,118 @@ +/***************************************************************************/ +/* */ +/* pfrload.h */ +/* */ +/* FreeType PFR loader (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRLOAD_H__ +#define __PFRLOAD_H__ + +#include "pfrobjs.h" +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + +#ifdef PFR_CONFIG_NO_CHECKS +#define PFR_CHECK( x ) do { } while ( 0 ) +#else +#define PFR_CHECK( x ) do \ + { \ + if ( p + (x) > limit ) \ + goto Too_Short; \ + } while ( 0 ) +#endif + +#define PFR_NEXT_BYTE( p ) FT_NEXT_BYTE( p ) +#define PFR_NEXT_INT8( p ) FT_NEXT_CHAR( p ) +#define PFR_NEXT_SHORT( p ) FT_NEXT_SHORT( p ) +#define PFR_NEXT_USHORT( p ) FT_NEXT_USHORT( p ) +#define PFR_NEXT_LONG( p ) FT_NEXT_OFF3( p ) +#define PFR_NEXT_ULONG( p ) FT_NEXT_UOFF3( p ) + + + /* handling extra items */ + + typedef FT_Error + (*PFR_ExtraItem_ParseFunc)( FT_Byte* p, + FT_Byte* limit, + FT_Pointer data ); + + typedef struct PFR_ExtraItemRec_ + { + FT_UInt type; + PFR_ExtraItem_ParseFunc parser; + + } PFR_ExtraItemRec; + + typedef const struct PFR_ExtraItemRec_* PFR_ExtraItem; + + + FT_LOCAL( FT_Error ) + pfr_extra_items_skip( FT_Byte* *pp, + FT_Byte* limit ); + + FT_LOCAL( FT_Error ) + pfr_extra_items_parse( FT_Byte* *pp, + FT_Byte* limit, + PFR_ExtraItem item_list, + FT_Pointer item_data ); + + + /* load a PFR header */ + FT_LOCAL( FT_Error ) + pfr_header_load( PFR_Header header, + FT_Stream stream ); + + /* check a PFR header */ + FT_LOCAL( FT_Bool ) + pfr_header_check( PFR_Header header ); + + + /* return number of logical fonts in this file */ + FT_LOCAL( FT_Error ) + pfr_log_font_count( FT_Stream stream, + FT_UInt32 log_section_offset, + FT_UInt *acount ); + + /* load a pfr logical font entry */ + FT_LOCAL( FT_Error ) + pfr_log_font_load( PFR_LogFont log_font, + FT_Stream stream, + FT_UInt face_index, + FT_UInt32 section_offset, + FT_Bool size_increment ); + + + /* load a physical font entry */ + FT_LOCAL( FT_Error ) + pfr_phy_font_load( PFR_PhyFont phy_font, + FT_Stream stream, + FT_UInt32 offset, + FT_UInt32 size ); + + /* finalize a physical font */ + FT_LOCAL( void ) + pfr_phy_font_done( PFR_PhyFont phy_font, + FT_Memory memory ); + + /* */ + +FT_END_HEADER + +#endif /* __PFRLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.c new file mode 100644 index 000000000..3e5e86e21 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.c @@ -0,0 +1,591 @@ +/***************************************************************************/ +/* */ +/* pfrobjs.c */ +/* */ +/* FreeType PFR object methods (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrobjs.h" +#include "pfrload.h" +#include "pfrgload.h" +#include "pfrcmap.h" +#include "pfrsbit.h" +#include FT_OUTLINE_H +#include FT_INTERNAL_DEBUG_H +#include FT_TRUETYPE_IDS_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FACE OBJECT METHODS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + pfr_face_done( FT_Face pfrface ) /* PFR_Face */ + { + PFR_Face face = (PFR_Face)pfrface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = pfrface->driver->root.memory; + + /* we don't want dangling pointers */ + pfrface->family_name = NULL; + pfrface->style_name = NULL; + + /* finalize the physical font record */ + pfr_phy_font_done( &face->phy_font, FT_FACE_MEMORY( face ) ); + + /* no need to finalize the logical font or the header */ + FT_FREE( pfrface->available_sizes ); + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_face_init( FT_Stream stream, + FT_Face pfrface, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + PFR_Face face = (PFR_Face)pfrface; + FT_Error error; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + /* load the header and check it */ + error = pfr_header_load( &face->header, stream ); + if ( error ) + goto Exit; + + if ( !pfr_header_check( &face->header ) ) + { + FT_TRACE4(( "pfr_face_init: not a valid PFR font\n" )); + error = PFR_Err_Unknown_File_Format; + goto Exit; + } + + /* check face index */ + { + FT_UInt num_faces; + + + error = pfr_log_font_count( stream, + face->header.log_dir_offset, + &num_faces ); + if ( error ) + goto Exit; + + pfrface->num_faces = num_faces; + } + + if ( face_index < 0 ) + goto Exit; + + if ( face_index >= pfrface->num_faces ) + { + FT_ERROR(( "pfr_face_init: invalid face index\n" )); + error = PFR_Err_Invalid_Argument; + goto Exit; + } + + /* load the face */ + error = pfr_log_font_load( + &face->log_font, stream, face_index, + face->header.log_dir_offset, + FT_BOOL( face->header.phy_font_max_size_high != 0 ) ); + if ( error ) + goto Exit; + + /* now load the physical font descriptor */ + error = pfr_phy_font_load( &face->phy_font, stream, + face->log_font.phys_offset, + face->log_font.phys_size ); + if ( error ) + goto Exit; + + /* now set up all root face fields */ + { + PFR_PhyFont phy_font = &face->phy_font; + + + pfrface->face_index = face_index; + pfrface->num_glyphs = phy_font->num_chars + 1; + pfrface->face_flags = FT_FACE_FLAG_SCALABLE; + + /* if all characters point to the same gps_offset 0, we */ + /* assume that the font only contains bitmaps */ + { + FT_UInt nn; + + + for ( nn = 0; nn < phy_font->num_chars; nn++ ) + if ( phy_font->chars[nn].gps_offset != 0 ) + break; + + if ( nn == phy_font->num_chars ) + { + if ( phy_font->num_strikes > 0 ) + pfrface->face_flags = 0; /* not scalable */ + else + { + FT_ERROR(( "pfr_face_init: font doesn't contain glyphs\n" )); + error = PFR_Err_Invalid_File_Format; + goto Exit; + } + } + } + + if ( (phy_font->flags & PFR_PHY_PROPORTIONAL) == 0 ) + pfrface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( phy_font->flags & PFR_PHY_VERTICAL ) + pfrface->face_flags |= FT_FACE_FLAG_VERTICAL; + else + pfrface->face_flags |= FT_FACE_FLAG_HORIZONTAL; + + if ( phy_font->num_strikes > 0 ) + pfrface->face_flags |= FT_FACE_FLAG_FIXED_SIZES; + + if ( phy_font->num_kern_pairs > 0 ) + pfrface->face_flags |= FT_FACE_FLAG_KERNING; + + /* If no family name was found in the "undocumented" auxiliary + * data, use the font ID instead. This sucks but is better than + * nothing. + */ + pfrface->family_name = phy_font->family_name; + if ( pfrface->family_name == NULL ) + pfrface->family_name = phy_font->font_id; + + /* note that the style name can be NULL in certain PFR fonts, + * probably meaning "Regular" + */ + pfrface->style_name = phy_font->style_name; + + pfrface->num_fixed_sizes = 0; + pfrface->available_sizes = 0; + + pfrface->bbox = phy_font->bbox; + pfrface->units_per_EM = (FT_UShort)phy_font->outline_resolution; + pfrface->ascender = (FT_Short) phy_font->bbox.yMax; + pfrface->descender = (FT_Short) phy_font->bbox.yMin; + + pfrface->height = (FT_Short)( ( pfrface->units_per_EM * 12 ) / 10 ); + if ( pfrface->height < pfrface->ascender - pfrface->descender ) + pfrface->height = (FT_Short)(pfrface->ascender - pfrface->descender); + + if ( phy_font->num_strikes > 0 ) + { + FT_UInt n, count = phy_font->num_strikes; + FT_Bitmap_Size* size; + PFR_Strike strike; + FT_Memory memory = pfrface->stream->memory; + + + if ( FT_NEW_ARRAY( pfrface->available_sizes, count ) ) + goto Exit; + + size = pfrface->available_sizes; + strike = phy_font->strikes; + for ( n = 0; n < count; n++, size++, strike++ ) + { + size->height = (FT_UShort)strike->y_ppm; + size->width = (FT_UShort)strike->x_ppm; + size->size = strike->y_ppm << 6; + size->x_ppem = strike->x_ppm << 6; + size->y_ppem = strike->y_ppm << 6; + } + pfrface->num_fixed_sizes = count; + } + + /* now compute maximum advance width */ + if ( ( phy_font->flags & PFR_PHY_PROPORTIONAL ) == 0 ) + pfrface->max_advance_width = (FT_Short)phy_font->standard_advance; + else + { + FT_Int max = 0; + FT_UInt count = phy_font->num_chars; + PFR_Char gchar = phy_font->chars; + + + for ( ; count > 0; count--, gchar++ ) + { + if ( max < gchar->advance ) + max = gchar->advance; + } + + pfrface->max_advance_width = (FT_Short)max; + } + + pfrface->max_advance_height = pfrface->height; + + pfrface->underline_position = (FT_Short)( -pfrface->units_per_EM / 10 ); + pfrface->underline_thickness = (FT_Short)( pfrface->units_per_EM / 30 ); + + /* create charmap */ + { + FT_CharMapRec charmap; + + + charmap.face = pfrface; + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + charmap.encoding = FT_ENCODING_UNICODE; + + error = FT_CMap_New( &pfr_cmap_class_rec, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( pfrface->num_charmaps ) + pfrface->charmap = pfrface->charmaps[0]; +#endif + } + + /* check whether we've loaded any kerning pairs */ + if ( phy_font->num_kern_pairs ) + pfrface->face_flags |= FT_FACE_FLAG_KERNING; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SLOT OBJECT METHOD *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( FT_Error ) + pfr_slot_init( FT_GlyphSlot pfrslot ) /* PFR_Slot */ + { + PFR_Slot slot = (PFR_Slot)pfrslot; + FT_GlyphLoader loader = pfrslot->internal->loader; + + + pfr_glyph_init( &slot->glyph, loader ); + + return 0; + } + + + FT_LOCAL_DEF( void ) + pfr_slot_done( FT_GlyphSlot pfrslot ) /* PFR_Slot */ + { + PFR_Slot slot = (PFR_Slot)pfrslot; + + + pfr_glyph_done( &slot->glyph ); + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_slot_load( FT_GlyphSlot pfrslot, /* PFR_Slot */ + FT_Size pfrsize, /* PFR_Size */ + FT_UInt gindex, + FT_Int32 load_flags ) + { + PFR_Slot slot = (PFR_Slot)pfrslot; + PFR_Size size = (PFR_Size)pfrsize; + FT_Error error; + PFR_Face face = (PFR_Face)pfrslot->face; + PFR_Char gchar; + FT_Outline* outline = &pfrslot->outline; + FT_ULong gps_offset; + + + if ( gindex > 0 ) + gindex--; + + if ( !face || gindex >= face->phy_font.num_chars ) + { + error = PFR_Err_Invalid_Argument; + goto Exit; + } + + /* try to load an embedded bitmap */ + if ( ( load_flags & ( FT_LOAD_NO_SCALE | FT_LOAD_NO_BITMAP ) ) == 0 ) + { + error = pfr_slot_load_bitmap( slot, size, gindex ); + if ( error == 0 ) + goto Exit; + } + + if ( load_flags & FT_LOAD_SBITS_ONLY ) + { + error = PFR_Err_Invalid_Argument; + goto Exit; + } + + gchar = face->phy_font.chars + gindex; + pfrslot->format = FT_GLYPH_FORMAT_OUTLINE; + outline->n_points = 0; + outline->n_contours = 0; + gps_offset = face->header.gps_section_offset; + + /* load the glyph outline (FT_LOAD_NO_RECURSE isn't supported) */ + error = pfr_glyph_load( &slot->glyph, face->root.stream, + gps_offset, gchar->gps_offset, gchar->gps_size ); + + if ( !error ) + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &pfrslot->metrics; + FT_Pos advance; + FT_Int em_metrics, em_outline; + FT_Bool scaling; + + + scaling = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ); + + /* copy outline data */ + *outline = slot->glyph.loader->base.outline; + + outline->flags &= ~FT_OUTLINE_OWNER; + outline->flags |= FT_OUTLINE_REVERSE_FILL; + + if ( size && pfrsize->metrics.y_ppem < 24 ) + outline->flags |= FT_OUTLINE_HIGH_PRECISION; + + /* compute the advance vector */ + metrics->horiAdvance = 0; + metrics->vertAdvance = 0; + + advance = gchar->advance; + em_metrics = face->phy_font.metrics_resolution; + em_outline = face->phy_font.outline_resolution; + + if ( em_metrics != em_outline ) + advance = FT_MulDiv( advance, em_outline, em_metrics ); + + if ( face->phy_font.flags & PFR_PHY_VERTICAL ) + metrics->vertAdvance = advance; + else + metrics->horiAdvance = advance; + + pfrslot->linearHoriAdvance = metrics->horiAdvance; + pfrslot->linearVertAdvance = metrics->vertAdvance; + + /* make-up vertical metrics(?) */ + metrics->vertBearingX = 0; + metrics->vertBearingY = 0; + +#if 0 /* some fonts seem to be broken here! */ + + /* Apply the font matrix, if any. */ + /* TODO: Test existing fonts with unusual matrix */ + /* whether we have to adjust Units per EM. */ + { + FT_Matrix font_matrix; + + + font_matrix.xx = face->log_font.matrix[0] << 8; + font_matrix.yx = face->log_font.matrix[1] << 8; + font_matrix.xy = face->log_font.matrix[2] << 8; + font_matrix.yy = face->log_font.matrix[3] << 8; + + FT_Outline_Transform( outline, &font_matrix ); + } +#endif + + /* scale when needed */ + if ( scaling ) + { + FT_Int n; + FT_Fixed x_scale = pfrsize->metrics.x_scale; + FT_Fixed y_scale = pfrsize->metrics.y_scale; + FT_Vector* vec = outline->points; + + + /* scale outline points */ + for ( n = 0; n < outline->n_points; n++, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* scale the advance */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the rest of the metrics */ + FT_Outline_Get_CBox( outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax - metrics->height; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** KERNING METHOD *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( FT_Error ) + pfr_face_get_kerning( FT_Face pfrface, /* PFR_Face */ + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ) + { + PFR_Face face = (PFR_Face)pfrface; + FT_Error error = PFR_Err_Ok; + PFR_PhyFont phy_font = &face->phy_font; + FT_UInt32 code1, code2, pair; + + + kerning->x = 0; + kerning->y = 0; + + if ( glyph1 > 0 ) + glyph1--; + + if ( glyph2 > 0 ) + glyph2--; + + /* convert glyph indices to character codes */ + if ( glyph1 > phy_font->num_chars || + glyph2 > phy_font->num_chars ) + goto Exit; + + code1 = phy_font->chars[glyph1].char_code; + code2 = phy_font->chars[glyph2].char_code; + pair = PFR_KERN_INDEX( code1, code2 ); + + /* now search the list of kerning items */ + { + PFR_KernItem item = phy_font->kern_items; + FT_Stream stream = pfrface->stream; + + + for ( ; item; item = item->next ) + { + if ( pair >= item->pair1 && pair <= item->pair2 ) + goto FoundPair; + } + goto Exit; + + FoundPair: /* we found an item, now parse it and find the value if any */ + if ( FT_STREAM_SEEK( item->offset ) || + FT_FRAME_ENTER( item->pair_count * item->pair_size ) ) + goto Exit; + + { + FT_UInt count = item->pair_count; + FT_UInt size = item->pair_size; + FT_UInt power = (FT_UInt)ft_highpow2( (FT_UInt32)count ); + FT_UInt probe = power * size; + FT_UInt extra = count - power; + FT_Byte* base = stream->cursor; + FT_Bool twobytes = FT_BOOL( item->flags & 1 ); + FT_Bool twobyte_adj = FT_BOOL( item->flags & 2 ); + FT_Byte* p; + FT_UInt32 cpair; + + + if ( extra > 0 ) + { + p = base + extra * size; + + if ( twobytes ) + cpair = FT_NEXT_ULONG( p ); + else + cpair = PFR_NEXT_KPAIR( p ); + + if ( cpair == pair ) + goto Found; + + if ( cpair < pair ) + { + if ( twobyte_adj ) + p += 2; + else + p++; + base = p; + } + } + + while ( probe > size ) + { + probe >>= 1; + p = base + probe; + + if ( twobytes ) + cpair = FT_NEXT_ULONG( p ); + else + cpair = PFR_NEXT_KPAIR( p ); + + if ( cpair == pair ) + goto Found; + + if ( cpair < pair ) + base += probe; + } + + p = base; + + if ( twobytes ) + cpair = FT_NEXT_ULONG( p ); + else + cpair = PFR_NEXT_KPAIR( p ); + + if ( cpair == pair ) + { + FT_Int value; + + + Found: + if ( twobyte_adj ) + value = FT_PEEK_SHORT( p ); + else + value = p[0]; + + kerning->x = item->base_adj + value; + } + } + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.h new file mode 100644 index 000000000..f6aa8b44c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrobjs.h @@ -0,0 +1,96 @@ +/***************************************************************************/ +/* */ +/* pfrobjs.h */ +/* */ +/* FreeType PFR object methods (specification). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFROBJS_H__ +#define __PFROBJS_H__ + +#include "pfrtypes.h" + + +FT_BEGIN_HEADER + + typedef struct PFR_FaceRec_* PFR_Face; + + typedef struct PFR_SizeRec_* PFR_Size; + + typedef struct PFR_SlotRec_* PFR_Slot; + + + typedef struct PFR_FaceRec_ + { + FT_FaceRec root; + PFR_HeaderRec header; + PFR_LogFontRec log_font; + PFR_PhyFontRec phy_font; + + } PFR_FaceRec; + + + typedef struct PFR_SizeRec_ + { + FT_SizeRec root; + + } PFR_SizeRec; + + + typedef struct PFR_SlotRec_ + { + FT_GlyphSlotRec root; + PFR_GlyphRec glyph; + + } PFR_SlotRec; + + + FT_LOCAL( FT_Error ) + pfr_face_init( FT_Stream stream, + FT_Face face, /* PFR_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + pfr_face_done( FT_Face face ); /* PFR_Face */ + + + FT_LOCAL( FT_Error ) + pfr_face_get_kerning( FT_Face face, /* PFR_Face */ + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ); + + + FT_LOCAL( FT_Error ) + pfr_slot_init( FT_GlyphSlot slot ); /* PFR_Slot */ + + FT_LOCAL( void ) + pfr_slot_done( FT_GlyphSlot slot ); /* PFR_Slot */ + + + FT_LOCAL( FT_Error ) + pfr_slot_load( FT_GlyphSlot slot, /* PFR_Slot */ + FT_Size size, /* PFR_Size */ + FT_UInt gindex, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __PFROBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.c b/uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.c new file mode 100644 index 000000000..52bc2c8c3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.c @@ -0,0 +1,698 @@ +/***************************************************************************/ +/* */ +/* pfrsbit.c */ +/* */ +/* FreeType PFR bitmap loader (body). */ +/* */ +/* Copyright 2002, 2003, 2006, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrsbit.h" +#include "pfrload.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR BIT WRITER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PFR_BitWriter_ + { + FT_Byte* line; /* current line start */ + FT_Int pitch; /* line size in bytes */ + FT_Int width; /* width in pixels/bits */ + FT_Int rows; /* number of remaining rows to scan */ + FT_Int total; /* total number of bits to draw */ + + } PFR_BitWriterRec, *PFR_BitWriter; + + + static void + pfr_bitwriter_init( PFR_BitWriter writer, + FT_Bitmap* target, + FT_Bool decreasing ) + { + writer->line = target->buffer; + writer->pitch = target->pitch; + writer->width = target->width; + writer->rows = target->rows; + writer->total = writer->width * writer->rows; + + if ( !decreasing ) + { + writer->line += writer->pitch * ( target->rows-1 ); + writer->pitch = -writer->pitch; + } + } + + + static void + pfr_bitwriter_decode_bytes( PFR_BitWriter writer, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Int n, reload; + FT_Int left = writer->width; + FT_Byte* cur = writer->line; + FT_UInt mask = 0x80; + FT_UInt val = 0; + FT_UInt c = 0; + + + n = (FT_Int)( limit - p ) * 8; + if ( n > writer->total ) + n = writer->total; + + reload = n & 7; + + for ( ; n > 0; n-- ) + { + if ( ( n & 7 ) == reload ) + val = *p++; + + if ( val & 0x80 ) + c |= mask; + + val <<= 1; + mask >>= 1; + + if ( --left <= 0 ) + { + cur[0] = (FT_Byte)c; + left = writer->width; + mask = 0x80; + + writer->line += writer->pitch; + cur = writer->line; + c = 0; + } + else if ( mask == 0 ) + { + cur[0] = (FT_Byte)c; + mask = 0x80; + c = 0; + cur ++; + } + } + + if ( mask != 0x80 ) + cur[0] = (FT_Byte)c; + } + + + static void + pfr_bitwriter_decode_rle1( PFR_BitWriter writer, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Int n, phase, count, counts[2], reload; + FT_Int left = writer->width; + FT_Byte* cur = writer->line; + FT_UInt mask = 0x80; + FT_UInt c = 0; + + + n = writer->total; + + phase = 1; + counts[0] = 0; + counts[1] = 0; + count = 0; + reload = 1; + + for ( ; n > 0; n-- ) + { + if ( reload ) + { + do + { + if ( phase ) + { + FT_Int v; + + + if ( p >= limit ) + break; + + v = *p++; + counts[0] = v >> 4; + counts[1] = v & 15; + phase = 0; + count = counts[0]; + } + else + { + phase = 1; + count = counts[1]; + } + + } while ( count == 0 ); + } + + if ( phase ) + c |= mask; + + mask >>= 1; + + if ( --left <= 0 ) + { + cur[0] = (FT_Byte) c; + left = writer->width; + mask = 0x80; + + writer->line += writer->pitch; + cur = writer->line; + c = 0; + } + else if ( mask == 0 ) + { + cur[0] = (FT_Byte)c; + mask = 0x80; + c = 0; + cur ++; + } + + reload = ( --count <= 0 ); + } + + if ( mask != 0x80 ) + cur[0] = (FT_Byte) c; + } + + + static void + pfr_bitwriter_decode_rle2( PFR_BitWriter writer, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Int n, phase, count, reload; + FT_Int left = writer->width; + FT_Byte* cur = writer->line; + FT_UInt mask = 0x80; + FT_UInt c = 0; + + + n = writer->total; + + phase = 1; + count = 0; + reload = 1; + + for ( ; n > 0; n-- ) + { + if ( reload ) + { + do + { + if ( p >= limit ) + break; + + count = *p++; + phase = phase ^ 1; + + } while ( count == 0 ); + } + + if ( phase ) + c |= mask; + + mask >>= 1; + + if ( --left <= 0 ) + { + cur[0] = (FT_Byte) c; + c = 0; + mask = 0x80; + left = writer->width; + + writer->line += writer->pitch; + cur = writer->line; + } + else if ( mask == 0 ) + { + cur[0] = (FT_Byte)c; + c = 0; + mask = 0x80; + cur ++; + } + + reload = ( --count <= 0 ); + } + + if ( mask != 0x80 ) + cur[0] = (FT_Byte) c; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BITMAP DATA DECODING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + pfr_lookup_bitmap_data( FT_Byte* base, + FT_Byte* limit, + FT_UInt count, + FT_UInt flags, + FT_UInt char_code, + FT_ULong* found_offset, + FT_ULong* found_size ) + { + FT_UInt left, right, char_len; + FT_Bool two = FT_BOOL( flags & 1 ); + FT_Byte* buff; + + + char_len = 4; + if ( two ) char_len += 1; + if ( flags & 2 ) char_len += 1; + if ( flags & 4 ) char_len += 1; + + left = 0; + right = count; + + while ( left < right ) + { + FT_UInt middle, code; + + + middle = ( left + right ) >> 1; + buff = base + middle * char_len; + + /* check that we are not outside of the table -- */ + /* this is possible with broken fonts... */ + if ( buff + char_len > limit ) + goto Fail; + + if ( two ) + code = PFR_NEXT_USHORT( buff ); + else + code = PFR_NEXT_BYTE( buff ); + + if ( code == char_code ) + goto Found_It; + + if ( code < char_code ) + left = middle; + else + right = middle; + } + + Fail: + /* Not found */ + *found_size = 0; + *found_offset = 0; + return; + + Found_It: + if ( flags & 2 ) + *found_size = PFR_NEXT_USHORT( buff ); + else + *found_size = PFR_NEXT_BYTE( buff ); + + if ( flags & 4 ) + *found_offset = PFR_NEXT_ULONG( buff ); + else + *found_offset = PFR_NEXT_USHORT( buff ); + } + + + /* load bitmap metrics. "*padvance" must be set to the default value */ + /* before calling this function... */ + /* */ + static FT_Error + pfr_load_bitmap_metrics( FT_Byte** pdata, + FT_Byte* limit, + FT_Long scaled_advance, + FT_Long *axpos, + FT_Long *aypos, + FT_UInt *axsize, + FT_UInt *aysize, + FT_Long *aadvance, + FT_UInt *aformat ) + { + FT_Error error = PFR_Err_Ok; + FT_Byte flags; + FT_Char b; + FT_Byte* p = *pdata; + FT_Long xpos, ypos, advance; + FT_UInt xsize, ysize; + + + PFR_CHECK( 1 ); + flags = PFR_NEXT_BYTE( p ); + + xpos = 0; + ypos = 0; + xsize = 0; + ysize = 0; + advance = 0; + + switch ( flags & 3 ) + { + case 0: + PFR_CHECK( 1 ); + b = PFR_NEXT_INT8( p ); + xpos = b >> 4; + ypos = ( (FT_Char)( b << 4 ) ) >> 4; + break; + + case 1: + PFR_CHECK( 2 ); + xpos = PFR_NEXT_INT8( p ); + ypos = PFR_NEXT_INT8( p ); + break; + + case 2: + PFR_CHECK( 4 ); + xpos = PFR_NEXT_SHORT( p ); + ypos = PFR_NEXT_SHORT( p ); + break; + + case 3: + PFR_CHECK( 6 ); + xpos = PFR_NEXT_LONG( p ); + ypos = PFR_NEXT_LONG( p ); + break; + + default: + ; + } + + flags >>= 2; + switch ( flags & 3 ) + { + case 0: + /* blank image */ + xsize = 0; + ysize = 0; + break; + + case 1: + PFR_CHECK( 1 ); + b = PFR_NEXT_BYTE( p ); + xsize = ( b >> 4 ) & 0xF; + ysize = b & 0xF; + break; + + case 2: + PFR_CHECK( 2 ); + xsize = PFR_NEXT_BYTE( p ); + ysize = PFR_NEXT_BYTE( p ); + break; + + case 3: + PFR_CHECK( 4 ); + xsize = PFR_NEXT_USHORT( p ); + ysize = PFR_NEXT_USHORT( p ); + break; + + default: + ; + } + + flags >>= 2; + switch ( flags & 3 ) + { + case 0: + advance = scaled_advance; + break; + + case 1: + PFR_CHECK( 1 ); + advance = PFR_NEXT_INT8( p ) << 8; + break; + + case 2: + PFR_CHECK( 2 ); + advance = PFR_NEXT_SHORT( p ); + break; + + case 3: + PFR_CHECK( 3 ); + advance = PFR_NEXT_LONG( p ); + break; + + default: + ; + } + + *axpos = xpos; + *aypos = ypos; + *axsize = xsize; + *aysize = ysize; + *aadvance = advance; + *aformat = flags >> 2; + *pdata = p; + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_load_bitmap_metrics: invalid glyph data\n" )); + goto Exit; + } + + + static FT_Error + pfr_load_bitmap_bits( FT_Byte* p, + FT_Byte* limit, + FT_UInt format, + FT_Bool decreasing, + FT_Bitmap* target ) + { + FT_Error error = PFR_Err_Ok; + PFR_BitWriterRec writer; + + + if ( target->rows > 0 && target->width > 0 ) + { + pfr_bitwriter_init( &writer, target, decreasing ); + + switch ( format ) + { + case 0: /* packed bits */ + pfr_bitwriter_decode_bytes( &writer, p, limit ); + break; + + case 1: /* RLE1 */ + pfr_bitwriter_decode_rle1( &writer, p, limit ); + break; + + case 2: /* RLE2 */ + pfr_bitwriter_decode_rle2( &writer, p, limit ); + break; + + default: + FT_ERROR(( "pfr_read_bitmap_data: invalid image type\n" )); + error = PFR_Err_Invalid_File_Format; + } + } + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BITMAP LOADING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( FT_Error ) + pfr_slot_load_bitmap( PFR_Slot glyph, + PFR_Size size, + FT_UInt glyph_index ) + { + FT_Error error; + PFR_Face face = (PFR_Face) glyph->root.face; + FT_Stream stream = face->root.stream; + PFR_PhyFont phys = &face->phy_font; + FT_ULong gps_offset; + FT_ULong gps_size; + PFR_Char character; + PFR_Strike strike; + + + character = &phys->chars[glyph_index]; + + /* Look-up a bitmap strike corresponding to the current */ + /* character dimensions */ + { + FT_UInt n; + + + strike = phys->strikes; + for ( n = 0; n < phys->num_strikes; n++ ) + { + if ( strike->x_ppm == (FT_UInt)size->root.metrics.x_ppem && + strike->y_ppm == (FT_UInt)size->root.metrics.y_ppem ) + { + goto Found_Strike; + } + + strike++; + } + + /* couldn't find it */ + return PFR_Err_Invalid_Argument; + } + + Found_Strike: + + /* Now lookup the glyph's position within the file */ + { + FT_UInt char_len; + + + char_len = 4; + if ( strike->flags & 1 ) char_len += 1; + if ( strike->flags & 2 ) char_len += 1; + if ( strike->flags & 4 ) char_len += 1; + + /* Access data directly in the frame to speed lookups */ + if ( FT_STREAM_SEEK( phys->bct_offset + strike->bct_offset ) || + FT_FRAME_ENTER( char_len * strike->num_bitmaps ) ) + goto Exit; + + pfr_lookup_bitmap_data( stream->cursor, + stream->limit, + strike->num_bitmaps, + strike->flags, + character->char_code, + &gps_offset, + &gps_size ); + + FT_FRAME_EXIT(); + + if ( gps_size == 0 ) + { + /* Could not find a bitmap program string for this glyph */ + error = PFR_Err_Invalid_Argument; + goto Exit; + } + } + + /* get the bitmap metrics */ + { + FT_Long xpos = 0, ypos = 0, advance = 0; + FT_UInt xsize = 0, ysize = 0, format = 0; + FT_Byte* p; + + + /* compute linear advance */ + advance = character->advance; + if ( phys->metrics_resolution != phys->outline_resolution ) + advance = FT_MulDiv( advance, + phys->outline_resolution, + phys->metrics_resolution ); + + glyph->root.linearHoriAdvance = advance; + + /* compute default advance, i.e., scaled advance. This can be */ + /* overridden in the bitmap header of certain glyphs. */ + advance = FT_MulDiv( (FT_Fixed)size->root.metrics.x_ppem << 8, + character->advance, + phys->metrics_resolution ); + + if ( FT_STREAM_SEEK( face->header.gps_section_offset + gps_offset ) || + FT_FRAME_ENTER( gps_size ) ) + goto Exit; + + p = stream->cursor; + error = pfr_load_bitmap_metrics( &p, stream->limit, + advance, + &xpos, &ypos, + &xsize, &ysize, + &advance, &format ); + + /* + * XXX: on 16bit system, we return an error for huge bitmap + * which causes a size truncation, because truncated + * size properties makes bitmap glyph broken. + */ + if ( xpos > FT_INT_MAX || ( ypos + ysize ) > FT_INT_MAX ) + { + FT_TRACE1(( "pfr_slot_load_bitmap:" )); + FT_TRACE1(( "huge bitmap glyph %dx%d over FT_GlyphSlot\n", + xpos, ypos )); + error = PFR_Err_Invalid_Pixel_Size; + } + + if ( !error ) + { + glyph->root.format = FT_GLYPH_FORMAT_BITMAP; + + /* Set up glyph bitmap and metrics */ + + /* XXX: needs casts to fit FT_Bitmap.{width|rows|pitch} */ + glyph->root.bitmap.width = (FT_Int)xsize; + glyph->root.bitmap.rows = (FT_Int)ysize; + glyph->root.bitmap.pitch = (FT_Int)( xsize + 7 ) >> 3; + glyph->root.bitmap.pixel_mode = FT_PIXEL_MODE_MONO; + + /* XXX: needs casts to fit FT_Glyph_Metrics.{width|height} */ + glyph->root.metrics.width = (FT_Pos)xsize << 6; + glyph->root.metrics.height = (FT_Pos)ysize << 6; + glyph->root.metrics.horiBearingX = xpos << 6; + glyph->root.metrics.horiBearingY = ypos << 6; + glyph->root.metrics.horiAdvance = FT_PIX_ROUND( ( advance >> 2 ) ); + glyph->root.metrics.vertBearingX = - glyph->root.metrics.width >> 1; + glyph->root.metrics.vertBearingY = 0; + glyph->root.metrics.vertAdvance = size->root.metrics.height; + + /* XXX: needs casts fit FT_GlyphSlotRec.bitmap_{left|top} */ + glyph->root.bitmap_left = (FT_Int)xpos; + glyph->root.bitmap_top = (FT_Int)(ypos + ysize); + + /* Allocate and read bitmap data */ + { + FT_ULong len = glyph->root.bitmap.pitch * ysize; + + + error = ft_glyphslot_alloc_bitmap( &glyph->root, len ); + if ( !error ) + { + error = pfr_load_bitmap_bits( + p, + stream->limit, + format, + FT_BOOL(face->header.color_flags & 2), + &glyph->root.bitmap ); + } + } + } + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.h new file mode 100644 index 000000000..015e9e6da --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrsbit.h @@ -0,0 +1,36 @@ +/***************************************************************************/ +/* */ +/* pfrsbit.h */ +/* */ +/* FreeType PFR bitmap loader (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRSBIT_H__ +#define __PFRSBIT_H__ + +#include "pfrobjs.h" + +FT_BEGIN_HEADER + + FT_LOCAL( FT_Error ) + pfr_slot_load_bitmap( PFR_Slot glyph, + PFR_Size size, + FT_UInt glyph_index ); + +FT_END_HEADER + +#endif /* __PFR_SBIT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pfr/pfrtypes.h b/uppsrc/plugin/FT_fontsys/src/pfr/pfrtypes.h new file mode 100644 index 000000000..491640c75 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pfr/pfrtypes.h @@ -0,0 +1,362 @@ +/***************************************************************************/ +/* */ +/* pfrtypes.h */ +/* */ +/* FreeType PFR data structures (specification only). */ +/* */ +/* Copyright 2002, 2003, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRTYPES_H__ +#define __PFRTYPES_H__ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H + +FT_BEGIN_HEADER + + /************************************************************************/ + + /* the PFR Header structure */ + typedef struct PFR_HeaderRec_ + { + FT_UInt32 signature; + FT_UInt version; + FT_UInt signature2; + FT_UInt header_size; + + FT_UInt log_dir_size; + FT_UInt log_dir_offset; + + FT_UInt log_font_max_size; + FT_UInt32 log_font_section_size; + FT_UInt32 log_font_section_offset; + + FT_UInt32 phy_font_max_size; + FT_UInt32 phy_font_section_size; + FT_UInt32 phy_font_section_offset; + + FT_UInt gps_max_size; + FT_UInt32 gps_section_size; + FT_UInt32 gps_section_offset; + + FT_UInt max_blue_values; + FT_UInt max_x_orus; + FT_UInt max_y_orus; + + FT_UInt phy_font_max_size_high; + FT_UInt color_flags; + + FT_UInt32 bct_max_size; + FT_UInt32 bct_set_max_size; + FT_UInt32 phy_bct_set_max_size; + + FT_UInt num_phy_fonts; + FT_UInt max_vert_stem_snap; + FT_UInt max_horz_stem_snap; + FT_UInt max_chars; + + } PFR_HeaderRec, *PFR_Header; + + + /* used in `color_flags' field of the PFR_Header */ + typedef enum PFR_HeaderFlags_ + { + PFR_FLAG_BLACK_PIXEL = 1, + PFR_FLAG_INVERT_BITMAP = 2 + + } PFR_HeaderFlags; + + + /************************************************************************/ + + typedef struct PFR_LogFontRec_ + { + FT_UInt32 size; + FT_UInt32 offset; + + FT_Int32 matrix[4]; + FT_UInt stroke_flags; + FT_Int stroke_thickness; + FT_Int bold_thickness; + FT_Int32 miter_limit; + + FT_UInt32 phys_size; + FT_UInt32 phys_offset; + + } PFR_LogFontRec, *PFR_LogFont; + + + typedef enum PFR_LogFlags_ + { + PFR_LOG_EXTRA_ITEMS = 0x40, + PFR_LOG_2BYTE_BOLD = 0x20, + PFR_LOG_BOLD = 0x10, + PFR_LOG_2BYTE_STROKE = 8, + PFR_LOG_STROKE = 4, + PFR_LINE_JOIN_MASK = 3 + + } PFR_LogFlags; + + + typedef enum PFR_LineJoinFlags_ + { + PFR_LINE_JOIN_MITER = 0, + PFR_LINE_JOIN_ROUND = 1, + PFR_LINE_JOIN_BEVEL = 2 + + } PFR_LineJoinFlags; + + + /************************************************************************/ + + typedef enum PFR_BitmapFlags_ + { + PFR_BITMAP_3BYTE_OFFSET = 4, + PFR_BITMAP_2BYTE_SIZE = 2, + PFR_BITMAP_2BYTE_CHARCODE = 1 + + } PFR_BitmapFlags; + + + typedef struct PFR_BitmapCharRec_ + { + FT_UInt char_code; + FT_UInt gps_size; + FT_UInt32 gps_offset; + + } PFR_BitmapCharRec, *PFR_BitmapChar; + + + typedef enum PFR_StrikeFlags_ + { + PFR_STRIKE_2BYTE_COUNT = 0x10, + PFR_STRIKE_3BYTE_OFFSET = 0x08, + PFR_STRIKE_3BYTE_SIZE = 0x04, + PFR_STRIKE_2BYTE_YPPM = 0x02, + PFR_STRIKE_2BYTE_XPPM = 0x01 + + } PFR_StrikeFlags; + + + typedef struct PFR_StrikeRec_ + { + FT_UInt x_ppm; + FT_UInt y_ppm; + FT_UInt flags; + + FT_UInt32 gps_size; + FT_UInt32 gps_offset; + + FT_UInt32 bct_size; + FT_UInt32 bct_offset; + + /* optional */ + FT_UInt num_bitmaps; + PFR_BitmapChar bitmaps; + + } PFR_StrikeRec, *PFR_Strike; + + + /************************************************************************/ + + typedef struct PFR_CharRec_ + { + FT_UInt char_code; + FT_Int advance; + FT_UInt gps_size; + FT_UInt32 gps_offset; + + } PFR_CharRec, *PFR_Char; + + + /************************************************************************/ + + typedef struct PFR_DimensionRec_ + { + FT_UInt standard; + FT_UInt num_stem_snaps; + FT_Int* stem_snaps; + + } PFR_DimensionRec, *PFR_Dimension; + + /************************************************************************/ + + typedef struct PFR_KernItemRec_* PFR_KernItem; + + typedef struct PFR_KernItemRec_ + { + PFR_KernItem next; + FT_Byte pair_count; + FT_Byte flags; + FT_Short base_adj; + FT_UInt pair_size; + FT_Offset offset; + FT_UInt32 pair1; + FT_UInt32 pair2; + + } PFR_KernItemRec; + + +#define PFR_KERN_INDEX( g1, g2 ) \ + ( ( (FT_UInt32)(g1) << 16 ) | (FT_UInt16)(g2) ) + +#define PFR_KERN_PAIR_INDEX( pair ) \ + PFR_KERN_INDEX( (pair)->glyph1, (pair)->glyph2 ) + +#define PFR_NEXT_KPAIR( p ) ( p += 2, \ + ( (FT_UInt32)p[-2] << 16 ) | p[-1] ) + + + /************************************************************************/ + + typedef struct PFR_PhyFontRec_ + { + FT_Memory memory; + FT_UInt32 offset; + + FT_UInt font_ref_number; + FT_UInt outline_resolution; + FT_UInt metrics_resolution; + FT_BBox bbox; + FT_UInt flags; + FT_UInt standard_advance; + + FT_Int ascent; /* optional, bbox.yMax if not present */ + FT_Int descent; /* optional, bbox.yMin if not present */ + FT_Int leading; /* optional, 0 if not present */ + + PFR_DimensionRec horizontal; + PFR_DimensionRec vertical; + + FT_String* font_id; + FT_String* family_name; + FT_String* style_name; + + FT_UInt num_strikes; + FT_UInt max_strikes; + PFR_StrikeRec* strikes; + + FT_UInt num_blue_values; + FT_Int *blue_values; + FT_UInt blue_fuzz; + FT_UInt blue_scale; + + FT_UInt num_chars; + FT_Offset chars_offset; + PFR_Char chars; + + FT_UInt num_kern_pairs; + PFR_KernItem kern_items; + PFR_KernItem* kern_items_tail; + + /* not part of the spec, but used during load */ + FT_Long bct_offset; + FT_Byte* cursor; + + } PFR_PhyFontRec, *PFR_PhyFont; + + + typedef enum PFR_PhyFlags_ + { + PFR_PHY_EXTRA_ITEMS = 0x80, + PFR_PHY_3BYTE_GPS_OFFSET = 0x20, + PFR_PHY_2BYTE_GPS_SIZE = 0x10, + PFR_PHY_ASCII_CODE = 0x08, + PFR_PHY_PROPORTIONAL = 0x04, + PFR_PHY_2BYTE_CHARCODE = 0x02, + PFR_PHY_VERTICAL = 0x01 + + } PFR_PhyFlags; + + + typedef enum PFR_KernFlags_ + { + PFR_KERN_2BYTE_CHAR = 0x01, + PFR_KERN_2BYTE_ADJ = 0x02 + + } PFR_KernFlags; + + + /************************************************************************/ + + typedef enum PFR_GlyphFlags_ + { + PFR_GLYPH_IS_COMPOUND = 0x80, + PFR_GLYPH_EXTRA_ITEMS = 0x08, + PFR_GLYPH_1BYTE_XYCOUNT = 0x04, + PFR_GLYPH_XCOUNT = 0x02, + PFR_GLYPH_YCOUNT = 0x01 + + } PFR_GlyphFlags; + + + /* controlled coordinate */ + typedef struct PFR_CoordRec_ + { + FT_UInt org; + FT_UInt cur; + + } PFR_CoordRec, *PFR_Coord; + + + typedef struct PFR_SubGlyphRec_ + { + FT_Fixed x_scale; + FT_Fixed y_scale; + FT_Int x_delta; + FT_Int y_delta; + FT_UInt32 gps_offset; + FT_UInt gps_size; + + } PFR_SubGlyphRec, *PFR_SubGlyph; + + + typedef enum PFR_SubgGlyphFlags_ + { + PFR_SUBGLYPH_3BYTE_OFFSET = 0x80, + PFR_SUBGLYPH_2BYTE_SIZE = 0x40, + PFR_SUBGLYPH_YSCALE = 0x20, + PFR_SUBGLYPH_XSCALE = 0x10 + + } PFR_SubGlyphFlags; + + + typedef struct PFR_GlyphRec_ + { + FT_Byte format; + +#if 0 + FT_UInt num_x_control; + FT_UInt num_y_control; +#endif + FT_UInt max_xy_control; + FT_Pos* x_control; + FT_Pos* y_control; + + + FT_UInt num_subs; + FT_UInt max_subs; + PFR_SubGlyphRec* subs; + + FT_GlyphLoader loader; + FT_Bool path_begun; + + } PFR_GlyphRec, *PFR_Glyph; + + +FT_END_HEADER + +#endif /* __PFRTYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/afmparse.c b/uppsrc/plugin/FT_fontsys/src/psaux/afmparse.c new file mode 100644 index 000000000..5e5271276 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/afmparse.c @@ -0,0 +1,964 @@ +/***************************************************************************/ +/* */ +/* afmparse.c */ +/* */ +/* AFM parser (body). */ +/* */ +/* Copyright 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "afmparse.h" +#include "psconv.h" + +#include "psauxerr.h" + + +/***************************************************************************/ +/* */ +/* AFM_Stream */ +/* */ +/* The use of AFM_Stream is largely inspired by parseAFM.[ch] from t1lib. */ +/* */ +/* */ + + enum + { + AFM_STREAM_STATUS_NORMAL, + AFM_STREAM_STATUS_EOC, + AFM_STREAM_STATUS_EOL, + AFM_STREAM_STATUS_EOF + }; + + + typedef struct AFM_StreamRec_ + { + FT_Byte* cursor; + FT_Byte* base; + FT_Byte* limit; + + FT_Int status; + + } AFM_StreamRec; + + +#ifndef EOF +#define EOF -1 +#endif + + + /* this works because empty lines are ignored */ +#define AFM_IS_NEWLINE( ch ) ( (ch) == '\r' || (ch) == '\n' ) + +#define AFM_IS_EOF( ch ) ( (ch) == EOF || (ch) == '\x1a' ) +#define AFM_IS_SPACE( ch ) ( (ch) == ' ' || (ch) == '\t' ) + + /* column separator; there is no `column' in the spec actually */ +#define AFM_IS_SEP( ch ) ( (ch) == ';' ) + +#define AFM_GETC() \ + ( ( (stream)->cursor < (stream)->limit ) ? *(stream)->cursor++ \ + : EOF ) + +#define AFM_STREAM_KEY_BEGIN( stream ) \ + (char*)( (stream)->cursor - 1 ) + +#define AFM_STREAM_KEY_LEN( stream, key ) \ + ( (char*)(stream)->cursor - key - 1 ) + +#define AFM_STATUS_EOC( stream ) \ + ( (stream)->status >= AFM_STREAM_STATUS_EOC ) + +#define AFM_STATUS_EOL( stream ) \ + ( (stream)->status >= AFM_STREAM_STATUS_EOL ) + +#define AFM_STATUS_EOF( stream ) \ + ( (stream)->status >= AFM_STREAM_STATUS_EOF ) + + + static int + afm_stream_skip_spaces( AFM_Stream stream ) + { + int ch = 0; /* make stupid compiler happy */ + + + if ( AFM_STATUS_EOC( stream ) ) + return ';'; + + while ( 1 ) + { + ch = AFM_GETC(); + if ( !AFM_IS_SPACE( ch ) ) + break; + } + + if ( AFM_IS_NEWLINE( ch ) ) + stream->status = AFM_STREAM_STATUS_EOL; + else if ( AFM_IS_SEP( ch ) ) + stream->status = AFM_STREAM_STATUS_EOC; + else if ( AFM_IS_EOF( ch ) ) + stream->status = AFM_STREAM_STATUS_EOF; + + return ch; + } + + + /* read a key or value in current column */ + static char* + afm_stream_read_one( AFM_Stream stream ) + { + char* str; + int ch; + + + afm_stream_skip_spaces( stream ); + if ( AFM_STATUS_EOC( stream ) ) + return NULL; + + str = AFM_STREAM_KEY_BEGIN( stream ); + + while ( 1 ) + { + ch = AFM_GETC(); + if ( AFM_IS_SPACE( ch ) ) + break; + else if ( AFM_IS_NEWLINE( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOL; + break; + } + else if ( AFM_IS_SEP( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOC; + break; + } + else if ( AFM_IS_EOF( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOF; + break; + } + } + + return str; + } + + + /* read a string (i.e., read to EOL) */ + static char* + afm_stream_read_string( AFM_Stream stream ) + { + char* str; + int ch; + + + afm_stream_skip_spaces( stream ); + if ( AFM_STATUS_EOL( stream ) ) + return NULL; + + str = AFM_STREAM_KEY_BEGIN( stream ); + + /* scan to eol */ + while ( 1 ) + { + ch = AFM_GETC(); + if ( AFM_IS_NEWLINE( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOL; + break; + } + else if ( AFM_IS_EOF( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOF; + break; + } + } + + return str; + } + + + /*************************************************************************/ + /* */ + /* AFM_Parser */ + /* */ + /* */ + + /* all keys defined in Ch. 7-10 of 5004.AFM_Spec.pdf */ + typedef enum AFM_Token_ + { + AFM_TOKEN_ASCENDER, + AFM_TOKEN_AXISLABEL, + AFM_TOKEN_AXISTYPE, + AFM_TOKEN_B, + AFM_TOKEN_BLENDAXISTYPES, + AFM_TOKEN_BLENDDESIGNMAP, + AFM_TOKEN_BLENDDESIGNPOSITIONS, + AFM_TOKEN_C, + AFM_TOKEN_CC, + AFM_TOKEN_CH, + AFM_TOKEN_CAPHEIGHT, + AFM_TOKEN_CHARWIDTH, + AFM_TOKEN_CHARACTERSET, + AFM_TOKEN_CHARACTERS, + AFM_TOKEN_DESCENDER, + AFM_TOKEN_ENCODINGSCHEME, + AFM_TOKEN_ENDAXIS, + AFM_TOKEN_ENDCHARMETRICS, + AFM_TOKEN_ENDCOMPOSITES, + AFM_TOKEN_ENDDIRECTION, + AFM_TOKEN_ENDFONTMETRICS, + AFM_TOKEN_ENDKERNDATA, + AFM_TOKEN_ENDKERNPAIRS, + AFM_TOKEN_ENDTRACKKERN, + AFM_TOKEN_ESCCHAR, + AFM_TOKEN_FAMILYNAME, + AFM_TOKEN_FONTBBOX, + AFM_TOKEN_FONTNAME, + AFM_TOKEN_FULLNAME, + AFM_TOKEN_ISBASEFONT, + AFM_TOKEN_ISCIDFONT, + AFM_TOKEN_ISFIXEDPITCH, + AFM_TOKEN_ISFIXEDV, + AFM_TOKEN_ITALICANGLE, + AFM_TOKEN_KP, + AFM_TOKEN_KPH, + AFM_TOKEN_KPX, + AFM_TOKEN_KPY, + AFM_TOKEN_L, + AFM_TOKEN_MAPPINGSCHEME, + AFM_TOKEN_METRICSSETS, + AFM_TOKEN_N, + AFM_TOKEN_NOTICE, + AFM_TOKEN_PCC, + AFM_TOKEN_STARTAXIS, + AFM_TOKEN_STARTCHARMETRICS, + AFM_TOKEN_STARTCOMPOSITES, + AFM_TOKEN_STARTDIRECTION, + AFM_TOKEN_STARTFONTMETRICS, + AFM_TOKEN_STARTKERNDATA, + AFM_TOKEN_STARTKERNPAIRS, + AFM_TOKEN_STARTKERNPAIRS0, + AFM_TOKEN_STARTKERNPAIRS1, + AFM_TOKEN_STARTTRACKKERN, + AFM_TOKEN_STDHW, + AFM_TOKEN_STDVW, + AFM_TOKEN_TRACKKERN, + AFM_TOKEN_UNDERLINEPOSITION, + AFM_TOKEN_UNDERLINETHICKNESS, + AFM_TOKEN_VV, + AFM_TOKEN_VVECTOR, + AFM_TOKEN_VERSION, + AFM_TOKEN_W, + AFM_TOKEN_W0, + AFM_TOKEN_W0X, + AFM_TOKEN_W0Y, + AFM_TOKEN_W1, + AFM_TOKEN_W1X, + AFM_TOKEN_W1Y, + AFM_TOKEN_WX, + AFM_TOKEN_WY, + AFM_TOKEN_WEIGHT, + AFM_TOKEN_WEIGHTVECTOR, + AFM_TOKEN_XHEIGHT, + N_AFM_TOKENS, + AFM_TOKEN_UNKNOWN + + } AFM_Token; + + + static const char* const afm_key_table[N_AFM_TOKENS] = + { + "Ascender", + "AxisLabel", + "AxisType", + "B", + "BlendAxisTypes", + "BlendDesignMap", + "BlendDesignPositions", + "C", + "CC", + "CH", + "CapHeight", + "CharWidth", + "CharacterSet", + "Characters", + "Descender", + "EncodingScheme", + "EndAxis", + "EndCharMetrics", + "EndComposites", + "EndDirection", + "EndFontMetrics", + "EndKernData", + "EndKernPairs", + "EndTrackKern", + "EscChar", + "FamilyName", + "FontBBox", + "FontName", + "FullName", + "IsBaseFont", + "IsCIDFont", + "IsFixedPitch", + "IsFixedV", + "ItalicAngle", + "KP", + "KPH", + "KPX", + "KPY", + "L", + "MappingScheme", + "MetricsSets", + "N", + "Notice", + "PCC", + "StartAxis", + "StartCharMetrics", + "StartComposites", + "StartDirection", + "StartFontMetrics", + "StartKernData", + "StartKernPairs", + "StartKernPairs0", + "StartKernPairs1", + "StartTrackKern", + "StdHW", + "StdVW", + "TrackKern", + "UnderlinePosition", + "UnderlineThickness", + "VV", + "VVector", + "Version", + "W", + "W0", + "W0X", + "W0Y", + "W1", + "W1X", + "W1Y", + "WX", + "WY", + "Weight", + "WeightVector", + "XHeight" + }; + + + /* + * `afm_parser_read_vals' and `afm_parser_next_key' provide + * high-level operations to an AFM_Stream. The rest of the + * parser functions should use them without accessing the + * AFM_Stream directly. + */ + + FT_LOCAL_DEF( FT_Int ) + afm_parser_read_vals( AFM_Parser parser, + AFM_Value vals, + FT_UInt n ) + { + AFM_Stream stream = parser->stream; + char* str; + FT_UInt i; + + + if ( n > AFM_MAX_ARGUMENTS ) + return 0; + + for ( i = 0; i < n; i++ ) + { + FT_Offset len; + AFM_Value val = vals + i; + + + if ( val->type == AFM_VALUE_TYPE_STRING ) + str = afm_stream_read_string( stream ); + else + str = afm_stream_read_one( stream ); + + if ( !str ) + break; + + len = AFM_STREAM_KEY_LEN( stream, str ); + + switch ( val->type ) + { + case AFM_VALUE_TYPE_STRING: + case AFM_VALUE_TYPE_NAME: + { + FT_Memory memory = parser->memory; + FT_Error error; + + + if ( !FT_QALLOC( val->u.s, len + 1 ) ) + { + ft_memcpy( val->u.s, str, len ); + val->u.s[len] = '\0'; + } + } + break; + + case AFM_VALUE_TYPE_FIXED: + val->u.f = PS_Conv_ToFixed( (FT_Byte**)(void*)&str, + (FT_Byte*)str + len, 0 ); + break; + + case AFM_VALUE_TYPE_INTEGER: + val->u.i = PS_Conv_ToInt( (FT_Byte**)(void*)&str, + (FT_Byte*)str + len ); + break; + + case AFM_VALUE_TYPE_BOOL: + val->u.b = FT_BOOL( len == 4 && + !ft_strncmp( str, "true", 4 ) ); + break; + + case AFM_VALUE_TYPE_INDEX: + if ( parser->get_index ) + val->u.i = parser->get_index( str, len, parser->user_data ); + else + val->u.i = 0; + break; + } + } + + return i; + } + + + FT_LOCAL_DEF( char* ) + afm_parser_next_key( AFM_Parser parser, + FT_Bool line, + FT_Offset* len ) + { + AFM_Stream stream = parser->stream; + char* key = 0; /* make stupid compiler happy */ + + + if ( line ) + { + while ( 1 ) + { + /* skip current line */ + if ( !AFM_STATUS_EOL( stream ) ) + afm_stream_read_string( stream ); + + stream->status = AFM_STREAM_STATUS_NORMAL; + key = afm_stream_read_one( stream ); + + /* skip empty line */ + if ( !key && + !AFM_STATUS_EOF( stream ) && + AFM_STATUS_EOL( stream ) ) + continue; + + break; + } + } + else + { + while ( 1 ) + { + /* skip current column */ + while ( !AFM_STATUS_EOC( stream ) ) + afm_stream_read_one( stream ); + + stream->status = AFM_STREAM_STATUS_NORMAL; + key = afm_stream_read_one( stream ); + + /* skip empty column */ + if ( !key && + !AFM_STATUS_EOF( stream ) && + AFM_STATUS_EOC( stream ) ) + continue; + + break; + } + } + + if ( len ) + *len = ( key ) ? (FT_Offset)AFM_STREAM_KEY_LEN( stream, key ) + : 0; + + return key; + } + + + static AFM_Token + afm_tokenize( const char* key, + FT_Offset len ) + { + int n; + + + for ( n = 0; n < N_AFM_TOKENS; n++ ) + { + if ( *( afm_key_table[n] ) == *key ) + { + for ( ; n < N_AFM_TOKENS; n++ ) + { + if ( *( afm_key_table[n] ) != *key ) + return AFM_TOKEN_UNKNOWN; + + if ( ft_strncmp( afm_key_table[n], key, len ) == 0 ) + return (AFM_Token) n; + } + } + } + + return AFM_TOKEN_UNKNOWN; + } + + + FT_LOCAL_DEF( FT_Error ) + afm_parser_init( AFM_Parser parser, + FT_Memory memory, + FT_Byte* base, + FT_Byte* limit ) + { + AFM_Stream stream = NULL; + FT_Error error; + + + if ( FT_NEW( stream ) ) + return error; + + stream->cursor = stream->base = base; + stream->limit = limit; + + /* don't skip the first line during the first call */ + stream->status = AFM_STREAM_STATUS_EOL; + + parser->memory = memory; + parser->stream = stream; + parser->FontInfo = NULL; + parser->get_index = NULL; + + return PSaux_Err_Ok; + } + + + FT_LOCAL( void ) + afm_parser_done( AFM_Parser parser ) + { + FT_Memory memory = parser->memory; + + + FT_FREE( parser->stream ); + } + + + FT_LOCAL_DEF( FT_Error ) + afm_parser_read_int( AFM_Parser parser, + FT_Int* aint ) + { + AFM_ValueRec val; + + + val.type = AFM_VALUE_TYPE_INTEGER; + + if ( afm_parser_read_vals( parser, &val, 1 ) == 1 ) + { + *aint = val.u.i; + + return PSaux_Err_Ok; + } + else + return PSaux_Err_Syntax_Error; + } + + + static FT_Error + afm_parse_track_kern( AFM_Parser parser ) + { + AFM_FontInfo fi = parser->FontInfo; + AFM_TrackKern tk; + char* key; + FT_Offset len; + int n = -1; + + + if ( afm_parser_read_int( parser, &fi->NumTrackKern ) ) + goto Fail; + + if ( fi->NumTrackKern ) + { + FT_Memory memory = parser->memory; + FT_Error error; + + + if ( FT_QNEW_ARRAY( fi->TrackKerns, fi->NumTrackKern ) ) + return error; + } + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_ValueRec shared_vals[5]; + + + switch ( afm_tokenize( key, len ) ) + { + case AFM_TOKEN_TRACKKERN: + n++; + + if ( n >= fi->NumTrackKern ) + goto Fail; + + tk = fi->TrackKerns + n; + + shared_vals[0].type = AFM_VALUE_TYPE_INTEGER; + shared_vals[1].type = AFM_VALUE_TYPE_FIXED; + shared_vals[2].type = AFM_VALUE_TYPE_FIXED; + shared_vals[3].type = AFM_VALUE_TYPE_FIXED; + shared_vals[4].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 5 ) != 5 ) + goto Fail; + + tk->degree = shared_vals[0].u.i; + tk->min_ptsize = shared_vals[1].u.f; + tk->min_kern = shared_vals[2].u.f; + tk->max_ptsize = shared_vals[3].u.f; + tk->max_kern = shared_vals[4].u.f; + + /* is this correct? */ + if ( tk->degree < 0 && tk->min_kern > 0 ) + tk->min_kern = -tk->min_kern; + break; + + case AFM_TOKEN_ENDTRACKKERN: + case AFM_TOKEN_ENDKERNDATA: + case AFM_TOKEN_ENDFONTMETRICS: + fi->NumTrackKern = n + 1; + return PSaux_Err_Ok; + + case AFM_TOKEN_UNKNOWN: + break; + + default: + goto Fail; + } + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + +#undef KERN_INDEX +#define KERN_INDEX( g1, g2 ) ( ( (FT_ULong)g1 << 16 ) | g2 ) + + + /* compare two kerning pairs */ + FT_CALLBACK_DEF( int ) + afm_compare_kern_pairs( const void* a, + const void* b ) + { + AFM_KernPair kp1 = (AFM_KernPair)a; + AFM_KernPair kp2 = (AFM_KernPair)b; + + FT_ULong index1 = KERN_INDEX( kp1->index1, kp1->index2 ); + FT_ULong index2 = KERN_INDEX( kp2->index1, kp2->index2 ); + + + if ( index1 > index2 ) + return 1; + else if ( index1 < index2 ) + return -1; + else + return 0; + } + + + static FT_Error + afm_parse_kern_pairs( AFM_Parser parser ) + { + AFM_FontInfo fi = parser->FontInfo; + AFM_KernPair kp; + char* key; + FT_Offset len; + int n = -1; + + + if ( afm_parser_read_int( parser, &fi->NumKernPair ) ) + goto Fail; + + if ( fi->NumKernPair ) + { + FT_Memory memory = parser->memory; + FT_Error error; + + + if ( FT_QNEW_ARRAY( fi->KernPairs, fi->NumKernPair ) ) + return error; + } + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_Token token = afm_tokenize( key, len ); + + + switch ( token ) + { + case AFM_TOKEN_KP: + case AFM_TOKEN_KPX: + case AFM_TOKEN_KPY: + { + FT_Int r; + AFM_ValueRec shared_vals[4]; + + + n++; + + if ( n >= fi->NumKernPair ) + goto Fail; + + kp = fi->KernPairs + n; + + shared_vals[0].type = AFM_VALUE_TYPE_INDEX; + shared_vals[1].type = AFM_VALUE_TYPE_INDEX; + shared_vals[2].type = AFM_VALUE_TYPE_INTEGER; + shared_vals[3].type = AFM_VALUE_TYPE_INTEGER; + r = afm_parser_read_vals( parser, shared_vals, 4 ); + if ( r < 3 ) + goto Fail; + + kp->index1 = shared_vals[0].u.i; + kp->index2 = shared_vals[1].u.i; + if ( token == AFM_TOKEN_KPY ) + { + kp->x = 0; + kp->y = shared_vals[2].u.i; + } + else + { + kp->x = shared_vals[2].u.i; + kp->y = ( token == AFM_TOKEN_KP && r == 4 ) + ? shared_vals[3].u.i : 0; + } + } + break; + + case AFM_TOKEN_ENDKERNPAIRS: + case AFM_TOKEN_ENDKERNDATA: + case AFM_TOKEN_ENDFONTMETRICS: + fi->NumKernPair = n + 1; + ft_qsort( fi->KernPairs, fi->NumKernPair, + sizeof( AFM_KernPairRec ), + afm_compare_kern_pairs ); + return PSaux_Err_Ok; + + case AFM_TOKEN_UNKNOWN: + break; + + default: + goto Fail; + } + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + + static FT_Error + afm_parse_kern_data( AFM_Parser parser ) + { + FT_Error error; + char* key; + FT_Offset len; + + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + switch ( afm_tokenize( key, len ) ) + { + case AFM_TOKEN_STARTTRACKKERN: + error = afm_parse_track_kern( parser ); + if ( error ) + return error; + break; + + case AFM_TOKEN_STARTKERNPAIRS: + case AFM_TOKEN_STARTKERNPAIRS0: + error = afm_parse_kern_pairs( parser ); + if ( error ) + return error; + break; + + case AFM_TOKEN_ENDKERNDATA: + case AFM_TOKEN_ENDFONTMETRICS: + return PSaux_Err_Ok; + + case AFM_TOKEN_UNKNOWN: + break; + + default: + goto Fail; + } + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + + static FT_Error + afm_parser_skip_section( AFM_Parser parser, + FT_UInt n, + AFM_Token end_section ) + { + char* key; + FT_Offset len; + + + while ( n-- > 0 ) + { + key = afm_parser_next_key( parser, 1, NULL ); + if ( !key ) + goto Fail; + } + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_Token token = afm_tokenize( key, len ); + + + if ( token == end_section || token == AFM_TOKEN_ENDFONTMETRICS ) + return PSaux_Err_Ok; + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + + FT_LOCAL_DEF( FT_Error ) + afm_parser_parse( AFM_Parser parser ) + { + FT_Memory memory = parser->memory; + AFM_FontInfo fi = parser->FontInfo; + FT_Error error = PSaux_Err_Syntax_Error; + char* key; + FT_Offset len; + FT_Int metrics_sets = 0; + + + if ( !fi ) + return PSaux_Err_Invalid_Argument; + + key = afm_parser_next_key( parser, 1, &len ); + if ( !key || len != 16 || + ft_strncmp( key, "StartFontMetrics", 16 ) != 0 ) + return PSaux_Err_Unknown_File_Format; + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_ValueRec shared_vals[4]; + + + switch ( afm_tokenize( key, len ) ) + { + case AFM_TOKEN_METRICSSETS: + if ( afm_parser_read_int( parser, &metrics_sets ) ) + goto Fail; + + if ( metrics_sets != 0 && metrics_sets != 2 ) + { + error = PSaux_Err_Unimplemented_Feature; + + goto Fail; + } + break; + + case AFM_TOKEN_ISCIDFONT: + shared_vals[0].type = AFM_VALUE_TYPE_BOOL; + if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 ) + goto Fail; + + fi->IsCIDFont = shared_vals[0].u.b; + break; + + case AFM_TOKEN_FONTBBOX: + shared_vals[0].type = AFM_VALUE_TYPE_FIXED; + shared_vals[1].type = AFM_VALUE_TYPE_FIXED; + shared_vals[2].type = AFM_VALUE_TYPE_FIXED; + shared_vals[3].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 4 ) != 4 ) + goto Fail; + + fi->FontBBox.xMin = shared_vals[0].u.f; + fi->FontBBox.yMin = shared_vals[1].u.f; + fi->FontBBox.xMax = shared_vals[2].u.f; + fi->FontBBox.yMax = shared_vals[3].u.f; + break; + + case AFM_TOKEN_ASCENDER: + shared_vals[0].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 ) + goto Fail; + + fi->Ascender = shared_vals[0].u.f; + break; + + case AFM_TOKEN_DESCENDER: + shared_vals[0].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 ) + goto Fail; + + fi->Descender = shared_vals[0].u.f; + break; + + case AFM_TOKEN_STARTCHARMETRICS: + { + FT_Int n = 0; + + + if ( afm_parser_read_int( parser, &n ) ) + goto Fail; + + error = afm_parser_skip_section( parser, n, + AFM_TOKEN_ENDCHARMETRICS ); + if ( error ) + return error; + } + break; + + case AFM_TOKEN_STARTKERNDATA: + error = afm_parse_kern_data( parser ); + if ( error ) + goto Fail; + /* fall through since we only support kern data */ + + case AFM_TOKEN_ENDFONTMETRICS: + return PSaux_Err_Ok; + + default: + break; + } + } + + Fail: + FT_FREE( fi->TrackKerns ); + fi->NumTrackKern = 0; + + FT_FREE( fi->KernPairs ); + fi->NumKernPair = 0; + + fi->IsCIDFont = 0; + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/afmparse.h b/uppsrc/plugin/FT_fontsys/src/psaux/afmparse.h new file mode 100644 index 000000000..2ffaa1585 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/afmparse.h @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* afmparse.h */ +/* */ +/* AFM parser (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFMPARSE_H__ +#define __AFMPARSE_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + afm_parser_init( AFM_Parser parser, + FT_Memory memory, + FT_Byte* base, + FT_Byte* limit ); + + + FT_LOCAL( void ) + afm_parser_done( AFM_Parser parser ); + + + FT_LOCAL( FT_Error ) + afm_parser_parse( AFM_Parser parser ); + + + enum AFM_ValueType_ + { + AFM_VALUE_TYPE_STRING, + AFM_VALUE_TYPE_NAME, + AFM_VALUE_TYPE_FIXED, /* real number */ + AFM_VALUE_TYPE_INTEGER, + AFM_VALUE_TYPE_BOOL, + AFM_VALUE_TYPE_INDEX /* glyph index */ + }; + + + typedef struct AFM_ValueRec_ + { + enum AFM_ValueType_ type; + union + { + char* s; + FT_Fixed f; + FT_Int i; + FT_Bool b; + + } u; + + } AFM_ValueRec, *AFM_Value; + +#define AFM_MAX_ARGUMENTS 5 + + FT_LOCAL( FT_Int ) + afm_parser_read_vals( AFM_Parser parser, + AFM_Value vals, + FT_UInt n ); + + /* read the next key from the next line or column */ + FT_LOCAL( char* ) + afm_parser_next_key( AFM_Parser parser, + FT_Bool line, + FT_Offset* len ); + +FT_END_HEADER + +#endif /* __AFMPARSE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psaux.c b/uppsrc/plugin/FT_fontsys/src/psaux/psaux.c new file mode 100644 index 000000000..8e483076c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psaux.c @@ -0,0 +1,34 @@ +/***************************************************************************/ +/* */ +/* psaux.c */ +/* */ +/* FreeType auxiliary PostScript driver component (body only). */ +/* */ +/* Copyright 1996-2001, 2002, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "psobjs.c" +#include "psauxmod.c" +#include "t1decode.c" +#include "t1cmap.c" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "afmparse.c" +#endif + +#include "psconv.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psauxerr.h b/uppsrc/plugin/FT_fontsys/src/psaux/psauxerr.h new file mode 100644 index 000000000..d0baa3cbb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psauxerr.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* psauxerr.h */ +/* */ +/* PS auxiliary module error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PS auxiliary module error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PSAUXERR_H__ +#define __PSAUXERR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX PSaux_Err_ +#define FT_ERR_BASE FT_Mod_Err_PSaux + +#include FT_ERRORS_H + +#endif /* __PSAUXERR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.c b/uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.c new file mode 100644 index 000000000..d9b09aaa0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.c @@ -0,0 +1,139 @@ +/***************************************************************************/ +/* */ +/* psauxmod.c */ +/* */ +/* FreeType auxiliary PostScript module implementation (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "psauxmod.h" +#include "psobjs.h" +#include "t1decode.h" +#include "t1cmap.h" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "afmparse.h" +#endif + + + FT_CALLBACK_TABLE_DEF + const PS_Table_FuncsRec ps_table_funcs = + { + ps_table_new, + ps_table_done, + ps_table_add, + ps_table_release + }; + + + FT_CALLBACK_TABLE_DEF + const PS_Parser_FuncsRec ps_parser_funcs = + { + ps_parser_init, + ps_parser_done, + ps_parser_skip_spaces, + ps_parser_skip_PS_token, + ps_parser_to_int, + ps_parser_to_fixed, + ps_parser_to_bytes, + ps_parser_to_coord_array, + ps_parser_to_fixed_array, + ps_parser_to_token, + ps_parser_to_token_array, + ps_parser_load_field, + ps_parser_load_field_table + }; + + + FT_CALLBACK_TABLE_DEF + const T1_Builder_FuncsRec t1_builder_funcs = + { + t1_builder_init, + t1_builder_done, + t1_builder_check_points, + t1_builder_add_point, + t1_builder_add_point1, + t1_builder_add_contour, + t1_builder_start_point, + t1_builder_close_contour + }; + + + FT_CALLBACK_TABLE_DEF + const T1_Decoder_FuncsRec t1_decoder_funcs = + { + t1_decoder_init, + t1_decoder_done, + t1_decoder_parse_charstrings + }; + + +#ifndef T1_CONFIG_OPTION_NO_AFM + FT_CALLBACK_TABLE_DEF + const AFM_Parser_FuncsRec afm_parser_funcs = + { + afm_parser_init, + afm_parser_done, + afm_parser_parse + }; +#endif + + + FT_CALLBACK_TABLE_DEF + const T1_CMap_ClassesRec t1_cmap_classes = + { + &t1_cmap_standard_class_rec, + &t1_cmap_expert_class_rec, + &t1_cmap_custom_class_rec, + &t1_cmap_unicode_class_rec + }; + + + static + const PSAux_Interface psaux_interface = + { + &ps_table_funcs, + &ps_parser_funcs, + &t1_builder_funcs, + &t1_decoder_funcs, + t1_decrypt, + + (const T1_CMap_ClassesRec*) &t1_cmap_classes, + +#ifndef T1_CONFIG_OPTION_NO_AFM + &afm_parser_funcs, +#else + 0, +#endif + }; + + + FT_CALLBACK_TABLE_DEF + const FT_Module_Class psaux_module_class = + { + 0, + sizeof( FT_ModuleRec ), + "psaux", + 0x20000L, + 0x20000L, + + &psaux_interface, /* module-specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.h b/uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.h new file mode 100644 index 000000000..1a301a8c6 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psauxmod.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* psauxmod.h */ +/* */ +/* FreeType auxiliary PostScript module implementation (specification). */ +/* */ +/* Copyright 2000-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSAUXMOD_H__ +#define __PSAUXMOD_H__ + + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Module_Class ) psaux_driver_class; + + +FT_END_HEADER + +#endif /* __PSAUXMOD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psconv.c b/uppsrc/plugin/FT_fontsys/src/psaux/psconv.c new file mode 100644 index 000000000..98cd6bc19 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psconv.c @@ -0,0 +1,472 @@ +/***************************************************************************/ +/* */ +/* psconv.c */ +/* */ +/* Some convenience conversions (body). */ +/* */ +/* Copyright 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "psconv.h" +#include "psauxerr.h" + + + /* The following array is used by various functions to quickly convert */ + /* digits (both decimal and non-decimal) into numbers. */ + +#if 'A' == 65 + /* ASCII */ + + static const FT_Char ft_char_table[128] = + { + /* 0x00 */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, + }; + + /* no character >= 0x80 can represent a valid number */ +#define OP >= + +#endif /* 'A' == 65 */ + +#if 'A' == 193 + /* EBCDIC */ + + static const FT_Char ft_char_table[128] = + { + /* 0x80 */ + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1, -1, -1, -1, -1, -1, + -1, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, + -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1, -1, -1, -1, -1, -1, + -1, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, + -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, -1, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, + }; + + /* no character < 0x80 can represent a valid number */ +#define OP < + +#endif /* 'A' == 193 */ + + + FT_LOCAL_DEF( FT_Int ) + PS_Conv_Strtol( FT_Byte** cursor, + FT_Byte* limit, + FT_Int base ) + { + FT_Byte* p = *cursor; + FT_Int num = 0; + FT_Bool sign = 0; + + + if ( p == limit || base < 2 || base > 36 ) + return 0; + + if ( *p == '-' || *p == '+' ) + { + sign = FT_BOOL( *p == '-' ); + + p++; + if ( p == limit ) + return 0; + } + + for ( ; p < limit; p++ ) + { + FT_Char c; + + + if ( IS_PS_SPACE( *p ) || *p OP 0x80 ) + break; + + c = ft_char_table[*p & 0x7f]; + + if ( c < 0 || c >= base ) + break; + + num = num * base + c; + } + + if ( sign ) + num = -num; + + *cursor = p; + + return num; + } + + + FT_LOCAL_DEF( FT_Int ) + PS_Conv_ToInt( FT_Byte** cursor, + FT_Byte* limit ) + + { + FT_Byte* p; + FT_Int num; + + + num = PS_Conv_Strtol( cursor, limit, 10 ); + p = *cursor; + + if ( p < limit && *p == '#' ) + { + *cursor = p + 1; + + return PS_Conv_Strtol( cursor, limit, num ); + } + else + return num; + } + + + FT_LOCAL_DEF( FT_Fixed ) + PS_Conv_ToFixed( FT_Byte** cursor, + FT_Byte* limit, + FT_Int power_ten ) + { + FT_Byte* p = *cursor; + FT_Fixed integral; + FT_Long decimal = 0, divider = 1; + FT_Bool sign = 0; + + + if ( p == limit ) + return 0; + + if ( *p == '-' || *p == '+' ) + { + sign = FT_BOOL( *p == '-' ); + + p++; + if ( p == limit ) + return 0; + } + + if ( *p != '.' ) + integral = PS_Conv_ToInt( &p, limit ) << 16; + else + integral = 0; + + /* read the decimal part */ + if ( p < limit && *p == '.' ) + { + p++; + + for ( ; p < limit; p++ ) + { + FT_Char c; + + + if ( IS_PS_SPACE( *p ) || *p OP 0x80 ) + break; + + c = ft_char_table[*p & 0x7f]; + + if ( c < 0 || c >= 10 ) + break; + + if ( !integral && power_ten > 0 ) + { + power_ten--; + decimal = decimal * 10 + c; + } + else + { + if ( divider < 10000000L ) + { + decimal = decimal * 10 + c; + divider *= 10; + } + } + } + } + + /* read exponent, if any */ + if ( p + 1 < limit && ( *p == 'e' || *p == 'E' ) ) + { + p++; + power_ten += PS_Conv_ToInt( &p, limit ); + } + + while ( power_ten > 0 ) + { + integral *= 10; + decimal *= 10; + power_ten--; + } + + while ( power_ten < 0 ) + { + integral /= 10; + divider *= 10; + power_ten++; + } + + if ( decimal ) + integral += FT_DivFix( decimal, divider ); + + if ( sign ) + integral = -integral; + + *cursor = p; + + return integral; + } + + +#if 0 + FT_LOCAL_DEF( FT_UInt ) + PS_Conv_StringDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ) + { + FT_Byte* p; + FT_UInt r = 0; + + + for ( p = *cursor; r < n && p < limit; p++ ) + { + FT_Byte b; + + + if ( *p != '\\' ) + { + buffer[r++] = *p; + + continue; + } + + p++; + + switch ( *p ) + { + case 'n': + b = '\n'; + break; + case 'r': + b = '\r'; + break; + case 't': + b = '\t'; + break; + case 'b': + b = '\b'; + break; + case 'f': + b = '\f'; + break; + case '\r': + p++; + if ( *p != '\n' ) + { + b = *p; + + break; + } + /* no break */ + case '\n': + continue; + break; + default: + if ( IS_PS_DIGIT( *p ) ) + { + b = *p - '0'; + + p++; + + if ( IS_PS_DIGIT( *p ) ) + { + b = b * 8 + *p - '0'; + + p++; + + if ( IS_PS_DIGIT( *p ) ) + b = b * 8 + *p - '0'; + else + { + buffer[r++] = b; + b = *p; + } + } + else + { + buffer[r++] = b; + b = *p; + } + } + else + b = *p; + break; + } + + buffer[r++] = b; + } + + *cursor = p; + + return r; + } +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_UInt ) + PS_Conv_ASCIIHexDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ) + { + FT_Byte* p; + FT_UInt r = 0; + FT_UInt w = 0; + FT_UInt pad = 0x01; + + + n *= 2; + +#if 1 + + p = *cursor; + if ( n > (FT_UInt)( limit - p ) ) + n = (FT_UInt)( limit - p ); + + /* we try to process two nibbles at a time to be as fast as possible */ + for ( ; r < n; r++ ) + { + FT_UInt c = p[r]; + + + if ( IS_PS_SPACE( c ) ) + continue; + + if ( c OP 0x80 ) + break; + + c = ft_char_table[c & 0x7F]; + if ( (unsigned)c >= 16 ) + break; + + pad = ( pad << 4 ) | c; + if ( pad & 0x100 ) + { + buffer[w++] = (FT_Byte)pad; + pad = 0x01; + } + } + + if ( pad != 0x01 ) + buffer[w++] = (FT_Byte)( pad << 4 ); + + *cursor = p + r; + + return w; + +#else /* 0 */ + + for ( r = 0; r < n; r++ ) + { + FT_Char c; + + + if ( IS_PS_SPACE( *p ) ) + continue; + + if ( *p OP 0x80 ) + break; + + c = ft_char_table[*p & 0x7f]; + + if ( (unsigned)c >= 16 ) + break; + + if ( r & 1 ) + { + *buffer = (FT_Byte)(*buffer + c); + buffer++; + } + else + *buffer = (FT_Byte)(c << 4); + + r++; + } + + *cursor = p; + + return ( r + 1 ) / 2; + +#endif /* 0 */ + + } + + + FT_LOCAL_DEF( FT_UInt ) + PS_Conv_EexecDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n, + FT_UShort* seed ) + { + FT_Byte* p; + FT_UInt r; + FT_UInt s = *seed; + + +#if 1 + + p = *cursor; + if ( n > (FT_UInt)(limit - p) ) + n = (FT_UInt)(limit - p); + + for ( r = 0; r < n; r++ ) + { + FT_UInt val = p[r]; + FT_UInt b = ( val ^ ( s >> 8 ) ); + + + s = ( (val + s)*52845U + 22719 ) & 0xFFFFU; + buffer[r] = (FT_Byte) b; + } + + *cursor = p + n; + *seed = (FT_UShort)s; + +#else /* 0 */ + + for ( r = 0, p = *cursor; r < n && p < limit; r++, p++ ) + { + FT_Byte b = (FT_Byte)( *p ^ ( s >> 8 ) ); + + + s = (FT_UShort)( ( *p + s ) * 52845U + 22719 ); + *buffer++ = b; + } + *cursor = p; + *seed = s; + +#endif /* 0 */ + + return r; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psconv.h b/uppsrc/plugin/FT_fontsys/src/psaux/psconv.h new file mode 100644 index 000000000..646df8943 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psconv.h @@ -0,0 +1,71 @@ +/***************************************************************************/ +/* */ +/* psconv.h */ +/* */ +/* Some convenience conversions (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSCONV_H__ +#define __PSCONV_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Int ) + PS_Conv_Strtol( FT_Byte** cursor, + FT_Byte* limit, + FT_Int base ); + + + FT_LOCAL( FT_Int ) + PS_Conv_ToInt( FT_Byte** cursor, + FT_Byte* limit ); + + FT_LOCAL( FT_Fixed ) + PS_Conv_ToFixed( FT_Byte** cursor, + FT_Byte* limit, + FT_Int power_ten ); + +#if 0 + FT_LOCAL( FT_UInt ) + PS_Conv_StringDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ); +#endif + + FT_LOCAL( FT_UInt ) + PS_Conv_ASCIIHexDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ); + + FT_LOCAL( FT_UInt ) + PS_Conv_EexecDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n, + FT_UShort* seed ); + + +FT_END_HEADER + +#endif /* __PSCONV_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psobjs.c b/uppsrc/plugin/FT_fontsys/src/psaux/psobjs.c new file mode 100644 index 000000000..b4c0d7de3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psobjs.c @@ -0,0 +1,1710 @@ +/***************************************************************************/ +/* */ +/* psobjs.c */ +/* */ +/* Auxiliary functions for PostScript fonts (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H + +#include "psobjs.h" +#include "psconv.h" + +#include "psauxerr.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_psobjs + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ps_table_new */ + /* */ + /* <Description> */ + /* Initializes a PS_Table. */ + /* */ + /* <InOut> */ + /* table :: The address of the target table. */ + /* */ + /* <Input> */ + /* count :: The table size = the maximum number of elements. */ + /* */ + /* memory :: The memory object to use for all subsequent */ + /* reallocations. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + ps_table_new( PS_Table table, + FT_Int count, + FT_Memory memory ) + { + FT_Error error; + + + table->memory = memory; + if ( FT_NEW_ARRAY( table->elements, count ) || + FT_NEW_ARRAY( table->lengths, count ) ) + goto Exit; + + table->max_elems = count; + table->init = 0xDEADBEEFUL; + table->num_elems = 0; + table->block = 0; + table->capacity = 0; + table->cursor = 0; + + *(PS_Table_FuncsRec*)&table->funcs = ps_table_funcs; + + Exit: + if ( error ) + FT_FREE( table->elements ); + + return error; + } + + + static void + shift_elements( PS_Table table, + FT_Byte* old_base ) + { + FT_PtrDist delta = table->block - old_base; + FT_Byte** offset = table->elements; + FT_Byte** limit = offset + table->max_elems; + + + for ( ; offset < limit; offset++ ) + { + if ( offset[0] ) + offset[0] += delta; + } + } + + + static FT_Error + reallocate_t1_table( PS_Table table, + FT_Long new_size ) + { + FT_Memory memory = table->memory; + FT_Byte* old_base = table->block; + FT_Error error; + + + /* allocate new base block */ + if ( FT_ALLOC( table->block, new_size ) ) + { + table->block = old_base; + return error; + } + + /* copy elements and shift offsets */ + if ( old_base ) + { + FT_MEM_COPY( table->block, old_base, table->capacity ); + shift_elements( table, old_base ); + FT_FREE( old_base ); + } + + table->capacity = new_size; + + return PSaux_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ps_table_add */ + /* */ + /* <Description> */ + /* Adds an object to a PS_Table, possibly growing its memory block. */ + /* */ + /* <InOut> */ + /* table :: The target table. */ + /* */ + /* <Input> */ + /* idx :: The index of the object in the table. */ + /* */ + /* object :: The address of the object to copy in memory. */ + /* */ + /* length :: The length in bytes of the source object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. An error is returned if a */ + /* reallocation fails. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + ps_table_add( PS_Table table, + FT_Int idx, + void* object, + FT_PtrDist length ) + { + if ( idx < 0 || idx >= table->max_elems ) + { + FT_ERROR(( "ps_table_add: invalid index\n" )); + return PSaux_Err_Invalid_Argument; + } + + if ( length < 0 ) + { + FT_ERROR(( "ps_table_add: invalid length\n" )); + return PSaux_Err_Invalid_Argument; + } + + /* grow the base block if needed */ + if ( table->cursor + length > table->capacity ) + { + FT_Error error; + FT_Offset new_size = table->capacity; + FT_PtrDist in_offset; + + + in_offset = (FT_Byte*)object - table->block; + if ( in_offset < 0 || (FT_Offset)in_offset >= table->capacity ) + in_offset = -1; + + while ( new_size < table->cursor + length ) + { + /* increase size by 25% and round up to the nearest multiple + of 1024 */ + new_size += ( new_size >> 2 ) + 1; + new_size = FT_PAD_CEIL( new_size, 1024 ); + } + + error = reallocate_t1_table( table, new_size ); + if ( error ) + return error; + + if ( in_offset >= 0 ) + object = table->block + in_offset; + } + + /* add the object to the base block and adjust offset */ + table->elements[idx] = table->block + table->cursor; + table->lengths [idx] = length; + FT_MEM_COPY( table->block + table->cursor, object, length ); + + table->cursor += length; + return PSaux_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ps_table_done */ + /* */ + /* <Description> */ + /* Finalizes a PS_TableRec (i.e., reallocate it to its current */ + /* cursor). */ + /* */ + /* <InOut> */ + /* table :: The target table. */ + /* */ + /* <Note> */ + /* This function does NOT release the heap's memory block. It is up */ + /* to the caller to clean it, or reference it in its own structures. */ + /* */ + FT_LOCAL_DEF( void ) + ps_table_done( PS_Table table ) + { + FT_Memory memory = table->memory; + FT_Error error; + FT_Byte* old_base = table->block; + + + /* should never fail, because rec.cursor <= rec.size */ + if ( !old_base ) + return; + + if ( FT_ALLOC( table->block, table->cursor ) ) + return; + FT_MEM_COPY( table->block, old_base, table->cursor ); + shift_elements( table, old_base ); + + table->capacity = table->cursor; + FT_FREE( old_base ); + + FT_UNUSED( error ); + } + + + FT_LOCAL_DEF( void ) + ps_table_release( PS_Table table ) + { + FT_Memory memory = table->memory; + + + if ( (FT_ULong)table->init == 0xDEADBEEFUL ) + { + FT_FREE( table->block ); + FT_FREE( table->elements ); + FT_FREE( table->lengths ); + table->init = 0; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* first character must be already part of the comment */ + + static void + skip_comment( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + + + while ( cur < limit ) + { + if ( IS_PS_NEWLINE( *cur ) ) + break; + cur++; + } + + *acur = cur; + } + + + static void + skip_spaces( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + + + while ( cur < limit ) + { + if ( !IS_PS_SPACE( *cur ) ) + { + if ( *cur == '%' ) + /* According to the PLRM, a comment is equal to a space. */ + skip_comment( &cur, limit ); + else + break; + } + cur++; + } + + *acur = cur; + } + + +#define IS_OCTAL_DIGIT( c ) ( '0' <= (c) && (c) <= '7' ) + + + /* first character must be `('; */ + /* *acur is positioned at the character after the closing `)' */ + + static FT_Error + skip_literal_string( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + FT_Int embed = 0; + FT_Error error = PSaux_Err_Invalid_File_Format; + unsigned int i; + + + while ( cur < limit ) + { + FT_Byte c = *cur; + + + ++cur; + + if ( c == '\\' ) + { + /* Red Book 3rd ed., section `Literal Text Strings', p. 29: */ + /* A backslash can introduce three different types */ + /* of escape sequences: */ + /* - a special escaped char like \r, \n, etc. */ + /* - a one-, two-, or three-digit octal number */ + /* - none of the above in which case the backslash is ignored */ + + if ( cur == limit ) + /* error (or to be ignored?) */ + break; + + switch ( *cur ) + { + /* skip `special' escape */ + case 'n': + case 'r': + case 't': + case 'b': + case 'f': + case '\\': + case '(': + case ')': + ++cur; + break; + + default: + /* skip octal escape or ignore backslash */ + for ( i = 0; i < 3 && cur < limit; ++i ) + { + if ( !IS_OCTAL_DIGIT( *cur ) ) + break; + + ++cur; + } + } + } + else if ( c == '(' ) + embed++; + else if ( c == ')' ) + { + embed--; + if ( embed == 0 ) + { + error = PSaux_Err_Ok; + break; + } + } + } + + *acur = cur; + + return error; + } + + + /* first character must be `<' */ + + static FT_Error + skip_string( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + FT_Error err = PSaux_Err_Ok; + + + while ( ++cur < limit ) + { + /* All whitespace characters are ignored. */ + skip_spaces( &cur, limit ); + if ( cur >= limit ) + break; + + if ( !IS_PS_XDIGIT( *cur ) ) + break; + } + + if ( cur < limit && *cur != '>' ) + { + FT_ERROR(( "skip_string: missing closing delimiter `>'\n" )); + err = PSaux_Err_Invalid_File_Format; + } + else + cur++; + + *acur = cur; + return err; + } + + + /* first character must be the opening brace that */ + /* starts the procedure */ + + /* NB: [ and ] need not match: */ + /* `/foo {[} def' is a valid PostScript fragment, */ + /* even within a Type1 font */ + + static FT_Error + skip_procedure( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur; + FT_Int embed = 0; + FT_Error error = PSaux_Err_Ok; + + + FT_ASSERT( **acur == '{' ); + + for ( cur = *acur; cur < limit && error == PSaux_Err_Ok; ++cur ) + { + switch ( *cur ) + { + case '{': + ++embed; + break; + + case '}': + --embed; + if ( embed == 0 ) + { + ++cur; + goto end; + } + break; + + case '(': + error = skip_literal_string( &cur, limit ); + break; + + case '<': + error = skip_string( &cur, limit ); + break; + + case '%': + skip_comment( &cur, limit ); + break; + } + } + + end: + if ( embed != 0 ) + error = PSaux_Err_Invalid_File_Format; + + *acur = cur; + + return error; + } + + + /***********************************************************************/ + /* */ + /* All exported parsing routines handle leading whitespace and stop at */ + /* the first character which isn't part of the just handled token. */ + /* */ + /***********************************************************************/ + + + FT_LOCAL_DEF( void ) + ps_parser_skip_PS_token( PS_Parser parser ) + { + /* Note: PostScript allows any non-delimiting, non-whitespace */ + /* character in a name (PS Ref Manual, 3rd ed, p31). */ + /* PostScript delimiters are (, ), <, >, [, ], {, }, /, and %. */ + + FT_Byte* cur = parser->cursor; + FT_Byte* limit = parser->limit; + FT_Error error = PSaux_Err_Ok; + + + skip_spaces( &cur, limit ); /* this also skips comments */ + if ( cur >= limit ) + goto Exit; + + /* self-delimiting, single-character tokens */ + if ( *cur == '[' || *cur == ']' ) + { + cur++; + goto Exit; + } + + /* skip balanced expressions (procedures and strings) */ + + if ( *cur == '{' ) /* {...} */ + { + error = skip_procedure( &cur, limit ); + goto Exit; + } + + if ( *cur == '(' ) /* (...) */ + { + error = skip_literal_string( &cur, limit ); + goto Exit; + } + + if ( *cur == '<' ) /* <...> */ + { + if ( cur + 1 < limit && *(cur + 1) == '<' ) /* << */ + { + cur++; + cur++; + } + else + error = skip_string( &cur, limit ); + + goto Exit; + } + + if ( *cur == '>' ) + { + cur++; + if ( cur >= limit || *cur != '>' ) /* >> */ + { + FT_ERROR(( "ps_parser_skip_PS_token:" + " unexpected closing delimiter `>'\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + cur++; + goto Exit; + } + + if ( *cur == '/' ) + cur++; + + /* anything else */ + while ( cur < limit ) + { + /* *cur might be invalid (e.g., ')' or '}'), but this */ + /* is handled by the test `cur == parser->cursor' below */ + if ( IS_PS_DELIM( *cur ) ) + break; + + cur++; + } + + Exit: + if ( cur == parser->cursor ) + { + FT_ERROR(( "ps_parser_skip_PS_token:" + " current token is `%c' which is self-delimiting\n" + " " + " but invalid at this point\n", + *cur )); + + error = PSaux_Err_Invalid_File_Format; + } + + parser->error = error; + parser->cursor = cur; + } + + + FT_LOCAL_DEF( void ) + ps_parser_skip_spaces( PS_Parser parser ) + { + skip_spaces( &parser->cursor, parser->limit ); + } + + + /* `token' here means either something between balanced delimiters */ + /* or the next token; the delimiters are not removed. */ + + FT_LOCAL_DEF( void ) + ps_parser_to_token( PS_Parser parser, + T1_Token token ) + { + FT_Byte* cur; + FT_Byte* limit; + FT_Int embed; + + + token->type = T1_TOKEN_TYPE_NONE; + token->start = 0; + token->limit = 0; + + /* first of all, skip leading whitespace */ + ps_parser_skip_spaces( parser ); + + cur = parser->cursor; + limit = parser->limit; + + if ( cur >= limit ) + return; + + switch ( *cur ) + { + /************* check for literal string *****************/ + case '(': + token->type = T1_TOKEN_TYPE_STRING; + token->start = cur; + + if ( skip_literal_string( &cur, limit ) == PSaux_Err_Ok ) + token->limit = cur; + break; + + /************* check for programs/array *****************/ + case '{': + token->type = T1_TOKEN_TYPE_ARRAY; + token->start = cur; + + if ( skip_procedure( &cur, limit ) == PSaux_Err_Ok ) + token->limit = cur; + break; + + /************* check for table/array ********************/ + /* XXX: in theory we should also look for "<<" */ + /* since this is semantically equivalent to "["; */ + /* in practice it doesn't matter (?) */ + case '[': + token->type = T1_TOKEN_TYPE_ARRAY; + embed = 1; + token->start = cur++; + + /* we need this to catch `[ ]' */ + parser->cursor = cur; + ps_parser_skip_spaces( parser ); + cur = parser->cursor; + + while ( cur < limit && !parser->error ) + { + /* XXX: this is wrong because it does not */ + /* skip comments, procedures, and strings */ + if ( *cur == '[' ) + embed++; + else if ( *cur == ']' ) + { + embed--; + if ( embed <= 0 ) + { + token->limit = ++cur; + break; + } + } + + parser->cursor = cur; + ps_parser_skip_PS_token( parser ); + /* we need this to catch `[XXX ]' */ + ps_parser_skip_spaces ( parser ); + cur = parser->cursor; + } + break; + + /* ************ otherwise, it is any token **************/ + default: + token->start = cur; + token->type = ( *cur == '/' ? T1_TOKEN_TYPE_KEY : T1_TOKEN_TYPE_ANY ); + ps_parser_skip_PS_token( parser ); + cur = parser->cursor; + if ( !parser->error ) + token->limit = cur; + } + + if ( !token->limit ) + { + token->start = 0; + token->type = T1_TOKEN_TYPE_NONE; + } + + parser->cursor = cur; + } + + + /* NB: `tokens' can be NULL if we only want to count */ + /* the number of array elements */ + + FT_LOCAL_DEF( void ) + ps_parser_to_token_array( PS_Parser parser, + T1_Token tokens, + FT_UInt max_tokens, + FT_Int* pnum_tokens ) + { + T1_TokenRec master; + + + *pnum_tokens = -1; + + /* this also handles leading whitespace */ + ps_parser_to_token( parser, &master ); + + if ( master.type == T1_TOKEN_TYPE_ARRAY ) + { + FT_Byte* old_cursor = parser->cursor; + FT_Byte* old_limit = parser->limit; + T1_Token cur = tokens; + T1_Token limit = cur + max_tokens; + + + /* don't include outermost delimiters */ + parser->cursor = master.start + 1; + parser->limit = master.limit - 1; + + while ( parser->cursor < parser->limit ) + { + T1_TokenRec token; + + + ps_parser_to_token( parser, &token ); + if ( !token.type ) + break; + + if ( tokens != NULL && cur < limit ) + *cur = token; + + cur++; + } + + *pnum_tokens = (FT_Int)( cur - tokens ); + + parser->cursor = old_cursor; + parser->limit = old_limit; + } + } + + + /* first character must be a delimiter or a part of a number */ + /* NB: `coords' can be NULL if we just want to skip the */ + /* array; in this case we ignore `max_coords' */ + + static FT_Int + ps_tocoordarray( FT_Byte* *acur, + FT_Byte* limit, + FT_Int max_coords, + FT_Short* coords ) + { + FT_Byte* cur = *acur; + FT_Int count = 0; + FT_Byte c, ender; + + + if ( cur >= limit ) + goto Exit; + + /* check for the beginning of an array; otherwise, only one number */ + /* will be read */ + c = *cur; + ender = 0; + + if ( c == '[' ) + ender = ']'; + else if ( c == '{' ) + ender = '}'; + + if ( ender ) + cur++; + + /* now, read the coordinates */ + while ( cur < limit ) + { + FT_Short dummy; + FT_Byte* old_cur; + + + /* skip whitespace in front of data */ + skip_spaces( &cur, limit ); + if ( cur >= limit ) + goto Exit; + + if ( *cur == ender ) + { + cur++; + break; + } + + old_cur = cur; + + if ( coords != NULL && count >= max_coords ) + break; + + /* call PS_Conv_ToFixed() even if coords == NULL */ + /* to properly parse number at `cur' */ + *( coords != NULL ? &coords[count] : &dummy ) = + (FT_Short)( PS_Conv_ToFixed( &cur, limit, 0 ) >> 16 ); + + if ( old_cur == cur ) + { + count = -1; + goto Exit; + } + else + count++; + + if ( !ender ) + break; + } + + Exit: + *acur = cur; + return count; + } + + + /* first character must be a delimiter or a part of a number */ + /* NB: `values' can be NULL if we just want to skip the */ + /* array; in this case we ignore `max_values' */ + + static FT_Int + ps_tofixedarray( FT_Byte* *acur, + FT_Byte* limit, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ) + { + FT_Byte* cur = *acur; + FT_Int count = 0; + FT_Byte c, ender; + + + if ( cur >= limit ) + goto Exit; + + /* Check for the beginning of an array. Otherwise, only one number */ + /* will be read. */ + c = *cur; + ender = 0; + + if ( c == '[' ) + ender = ']'; + else if ( c == '{' ) + ender = '}'; + + if ( ender ) + cur++; + + /* now, read the values */ + while ( cur < limit ) + { + FT_Fixed dummy; + FT_Byte* old_cur; + + + /* skip whitespace in front of data */ + skip_spaces( &cur, limit ); + if ( cur >= limit ) + goto Exit; + + if ( *cur == ender ) + { + cur++; + break; + } + + old_cur = cur; + + if ( values != NULL && count >= max_values ) + break; + + /* call PS_Conv_ToFixed() even if coords == NULL */ + /* to properly parse number at `cur' */ + *( values != NULL ? &values[count] : &dummy ) = + PS_Conv_ToFixed( &cur, limit, power_ten ); + + if ( old_cur == cur ) + { + count = -1; + goto Exit; + } + else + count++; + + if ( !ender ) + break; + } + + Exit: + *acur = cur; + return count; + } + + +#if 0 + + static FT_String* + ps_tostring( FT_Byte** cursor, + FT_Byte* limit, + FT_Memory memory ) + { + FT_Byte* cur = *cursor; + FT_PtrDist len = 0; + FT_Int count; + FT_String* result; + FT_Error error; + + + /* XXX: some stupid fonts have a `Notice' or `Copyright' string */ + /* that simply doesn't begin with an opening parenthesis, even */ + /* though they have a closing one! E.g. "amuncial.pfb" */ + /* */ + /* We must deal with these ill-fated cases there. Note that */ + /* these fonts didn't work with the old Type 1 driver as the */ + /* notice/copyright was not recognized as a valid string token */ + /* and made the old token parser commit errors. */ + + while ( cur < limit && ( *cur == ' ' || *cur == '\t' ) ) + cur++; + if ( cur + 1 >= limit ) + return 0; + + if ( *cur == '(' ) + cur++; /* skip the opening parenthesis, if there is one */ + + *cursor = cur; + count = 0; + + /* then, count its length */ + for ( ; cur < limit; cur++ ) + { + if ( *cur == '(' ) + count++; + + else if ( *cur == ')' ) + { + count--; + if ( count < 0 ) + break; + } + } + + len = cur - *cursor; + if ( cur >= limit || FT_ALLOC( result, len + 1 ) ) + return 0; + + /* now copy the string */ + FT_MEM_COPY( result, *cursor, len ); + result[len] = '\0'; + *cursor = cur; + return result; + } + +#endif /* 0 */ + + + static int + ps_tobool( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + FT_Bool result = 0; + + + /* return 1 if we find `true', 0 otherwise */ + if ( cur + 3 < limit && + cur[0] == 't' && + cur[1] == 'r' && + cur[2] == 'u' && + cur[3] == 'e' ) + { + result = 1; + cur += 5; + } + else if ( cur + 4 < limit && + cur[0] == 'f' && + cur[1] == 'a' && + cur[2] == 'l' && + cur[3] == 's' && + cur[4] == 'e' ) + { + result = 0; + cur += 6; + } + + *acur = cur; + return result; + } + + + /* load a simple field (i.e. non-table) into the current list of objects */ + + FT_LOCAL_DEF( FT_Error ) + ps_parser_load_field( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ) + { + T1_TokenRec token; + FT_Byte* cur; + FT_Byte* limit; + FT_UInt count; + FT_UInt idx; + FT_Error error; + + + /* this also skips leading whitespace */ + ps_parser_to_token( parser, &token ); + if ( !token.type ) + goto Fail; + + count = 1; + idx = 0; + cur = token.start; + limit = token.limit; + + /* we must detect arrays in /FontBBox */ + if ( field->type == T1_FIELD_TYPE_BBOX ) + { + T1_TokenRec token2; + FT_Byte* old_cur = parser->cursor; + FT_Byte* old_limit = parser->limit; + + + /* don't include delimiters */ + parser->cursor = token.start + 1; + parser->limit = token.limit - 1; + + ps_parser_to_token( parser, &token2 ); + parser->cursor = old_cur; + parser->limit = old_limit; + + if ( token2.type == T1_TOKEN_TYPE_ARRAY ) + goto FieldArray; + } + else if ( token.type == T1_TOKEN_TYPE_ARRAY ) + { + FieldArray: + /* if this is an array and we have no blend, an error occurs */ + if ( max_objects == 0 ) + goto Fail; + + count = max_objects; + idx = 1; + + /* don't include delimiters */ + cur++; + limit--; + } + + for ( ; count > 0; count--, idx++ ) + { + FT_Byte* q = (FT_Byte*)objects[idx] + field->offset; + FT_Long val; + FT_String* string; + + + skip_spaces( &cur, limit ); + + switch ( field->type ) + { + case T1_FIELD_TYPE_BOOL: + val = ps_tobool( &cur, limit ); + goto Store_Integer; + + case T1_FIELD_TYPE_FIXED: + val = PS_Conv_ToFixed( &cur, limit, 0 ); + goto Store_Integer; + + case T1_FIELD_TYPE_FIXED_1000: + val = PS_Conv_ToFixed( &cur, limit, 3 ); + goto Store_Integer; + + case T1_FIELD_TYPE_INTEGER: + val = PS_Conv_ToInt( &cur, limit ); + /* fall through */ + + Store_Integer: + switch ( field->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)q = (FT_Byte)val; + break; + + case (16 / FT_CHAR_BIT): + *(FT_UShort*)q = (FT_UShort)val; + break; + + case (32 / FT_CHAR_BIT): + *(FT_UInt32*)q = (FT_UInt32)val; + break; + + default: /* for 64-bit systems */ + *(FT_Long*)q = val; + } + break; + + case T1_FIELD_TYPE_STRING: + case T1_FIELD_TYPE_KEY: + { + FT_Memory memory = parser->memory; + FT_UInt len = (FT_UInt)( limit - cur ); + + + if ( cur >= limit ) + break; + + /* we allow both a string or a name */ + /* for cases like /FontName (foo) def */ + if ( token.type == T1_TOKEN_TYPE_KEY ) + { + /* don't include leading `/' */ + len--; + cur++; + } + else if ( token.type == T1_TOKEN_TYPE_STRING ) + { + /* don't include delimiting parentheses */ + /* XXX we don't handle <<...>> here */ + /* XXX should we convert octal escapes? */ + /* if so, what encoding should we use? */ + cur++; + len -= 2; + } + else + { + FT_ERROR(( "ps_parser_load_field:" + " expected a name or string\n" + " " + " but found token of type %d instead\n", + token.type )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + /* for this to work (FT_String**)q must have been */ + /* initialized to NULL */ + if ( *(FT_String**)q != NULL ) + { + FT_TRACE0(( "ps_parser_load_field: overwriting field %s\n", + field->ident )); + FT_FREE( *(FT_String**)q ); + *(FT_String**)q = NULL; + } + + if ( FT_ALLOC( string, len + 1 ) ) + goto Exit; + + FT_MEM_COPY( string, cur, len ); + string[len] = 0; + + *(FT_String**)q = string; + } + break; + + case T1_FIELD_TYPE_BBOX: + { + FT_Fixed temp[4]; + FT_BBox* bbox = (FT_BBox*)q; + FT_Int result; + + + result = ps_tofixedarray( &cur, limit, 4, temp, 0 ); + + if ( result < 0 ) + { + FT_ERROR(( "ps_parser_load_field:" + " expected four integers in bounding box\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + bbox->xMin = FT_RoundFix( temp[0] ); + bbox->yMin = FT_RoundFix( temp[1] ); + bbox->xMax = FT_RoundFix( temp[2] ); + bbox->yMax = FT_RoundFix( temp[3] ); + } + break; + + default: + /* an error occurred */ + goto Fail; + } + } + +#if 0 /* obsolete -- keep for reference */ + if ( pflags ) + *pflags |= 1L << field->flag_bit; +#else + FT_UNUSED( pflags ); +#endif + + error = PSaux_Err_Ok; + + Exit: + return error; + + Fail: + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + +#define T1_MAX_TABLE_ELEMENTS 32 + + + FT_LOCAL_DEF( FT_Error ) + ps_parser_load_field_table( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ) + { + T1_TokenRec elements[T1_MAX_TABLE_ELEMENTS]; + T1_Token token; + FT_Int num_elements; + FT_Error error = PSaux_Err_Ok; + FT_Byte* old_cursor; + FT_Byte* old_limit; + T1_FieldRec fieldrec = *(T1_Field)field; + + + fieldrec.type = T1_FIELD_TYPE_INTEGER; + if ( field->type == T1_FIELD_TYPE_FIXED_ARRAY || + field->type == T1_FIELD_TYPE_BBOX ) + fieldrec.type = T1_FIELD_TYPE_FIXED; + + ps_parser_to_token_array( parser, elements, + T1_MAX_TABLE_ELEMENTS, &num_elements ); + if ( num_elements < 0 ) + { + error = PSaux_Err_Ignore; + goto Exit; + } + if ( (FT_UInt)num_elements > field->array_max ) + num_elements = field->array_max; + + old_cursor = parser->cursor; + old_limit = parser->limit; + + /* we store the elements count if necessary; */ + /* we further assume that `count_offset' can't be zero */ + if ( field->type != T1_FIELD_TYPE_BBOX && field->count_offset != 0 ) + *(FT_Byte*)( (FT_Byte*)objects[0] + field->count_offset ) = + (FT_Byte)num_elements; + + /* we now load each element, adjusting the field.offset on each one */ + token = elements; + for ( ; num_elements > 0; num_elements--, token++ ) + { + parser->cursor = token->start; + parser->limit = token->limit; + ps_parser_load_field( parser, &fieldrec, objects, max_objects, 0 ); + fieldrec.offset += fieldrec.size; + } + +#if 0 /* obsolete -- keep for reference */ + if ( pflags ) + *pflags |= 1L << field->flag_bit; +#else + FT_UNUSED( pflags ); +#endif + + parser->cursor = old_cursor; + parser->limit = old_limit; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Long ) + ps_parser_to_int( PS_Parser parser ) + { + ps_parser_skip_spaces( parser ); + return PS_Conv_ToInt( &parser->cursor, parser->limit ); + } + + + /* first character must be `<' if `delimiters' is non-zero */ + + FT_LOCAL_DEF( FT_Error ) + ps_parser_to_bytes( PS_Parser parser, + FT_Byte* bytes, + FT_Offset max_bytes, + FT_Long* pnum_bytes, + FT_Bool delimiters ) + { + FT_Error error = PSaux_Err_Ok; + FT_Byte* cur; + + + ps_parser_skip_spaces( parser ); + cur = parser->cursor; + + if ( cur >= parser->limit ) + goto Exit; + + if ( delimiters ) + { + if ( *cur != '<' ) + { + FT_ERROR(( "ps_parser_to_bytes: Missing starting delimiter `<'\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + cur++; + } + + *pnum_bytes = PS_Conv_ASCIIHexDecode( &cur, + parser->limit, + bytes, + max_bytes ); + + if ( delimiters ) + { + if ( cur < parser->limit && *cur != '>' ) + { + FT_ERROR(( "ps_parser_to_bytes: Missing closing delimiter `>'\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + cur++; + } + + parser->cursor = cur; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Fixed ) + ps_parser_to_fixed( PS_Parser parser, + FT_Int power_ten ) + { + ps_parser_skip_spaces( parser ); + return PS_Conv_ToFixed( &parser->cursor, parser->limit, power_ten ); + } + + + FT_LOCAL_DEF( FT_Int ) + ps_parser_to_coord_array( PS_Parser parser, + FT_Int max_coords, + FT_Short* coords ) + { + ps_parser_skip_spaces( parser ); + return ps_tocoordarray( &parser->cursor, parser->limit, + max_coords, coords ); + } + + + FT_LOCAL_DEF( FT_Int ) + ps_parser_to_fixed_array( PS_Parser parser, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ) + { + ps_parser_skip_spaces( parser ); + return ps_tofixedarray( &parser->cursor, parser->limit, + max_values, values, power_ten ); + } + + +#if 0 + + FT_LOCAL_DEF( FT_String* ) + T1_ToString( PS_Parser parser ) + { + return ps_tostring( &parser->cursor, parser->limit, parser->memory ); + } + + + FT_LOCAL_DEF( FT_Bool ) + T1_ToBool( PS_Parser parser ) + { + return ps_tobool( &parser->cursor, parser->limit ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( void ) + ps_parser_init( PS_Parser parser, + FT_Byte* base, + FT_Byte* limit, + FT_Memory memory ) + { + parser->error = PSaux_Err_Ok; + parser->base = base; + parser->limit = limit; + parser->cursor = base; + parser->memory = memory; + parser->funcs = ps_parser_funcs; + } + + + FT_LOCAL_DEF( void ) + ps_parser_done( PS_Parser parser ) + { + FT_UNUSED( parser ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_builder_init */ + /* */ + /* <Description> */ + /* Initializes a given glyph builder. */ + /* */ + /* <InOut> */ + /* builder :: A pointer to the glyph builder to initialize. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* size :: The current size object. */ + /* */ + /* glyph :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting should be applied. */ + /* */ + FT_LOCAL_DEF( void ) + t1_builder_init( T1_Builder builder, + FT_Face face, + FT_Size size, + FT_GlyphSlot glyph, + FT_Bool hinting ) + { + builder->parse_state = T1_Parse_Start; + builder->load_points = 1; + + builder->face = face; + builder->glyph = glyph; + builder->memory = face->memory; + + if ( glyph ) + { + FT_GlyphLoader loader = glyph->internal->loader; + + + builder->loader = loader; + builder->base = &loader->base.outline; + builder->current = &loader->current.outline; + FT_GlyphLoader_Rewind( loader ); + + builder->hints_globals = size->internal; + builder->hints_funcs = 0; + + if ( hinting ) + builder->hints_funcs = glyph->internal->glyph_hints; + } + + builder->pos_x = 0; + builder->pos_y = 0; + + builder->left_bearing.x = 0; + builder->left_bearing.y = 0; + builder->advance.x = 0; + builder->advance.y = 0; + + builder->funcs = t1_builder_funcs; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_builder_done */ + /* */ + /* <Description> */ + /* Finalizes a given glyph builder. Its contents can still be used */ + /* after the call, but the function saves important information */ + /* within the corresponding glyph slot. */ + /* */ + /* <Input> */ + /* builder :: A pointer to the glyph builder to finalize. */ + /* */ + FT_LOCAL_DEF( void ) + t1_builder_done( T1_Builder builder ) + { + FT_GlyphSlot glyph = builder->glyph; + + + if ( glyph ) + glyph->outline = *builder->base; + } + + + /* check that there is enough space for `count' more points */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_check_points( T1_Builder builder, + FT_Int count ) + { + return FT_GLYPHLOADER_CHECK_POINTS( builder->loader, count, 0 ); + } + + + /* add a new point, do not check space */ + FT_LOCAL_DEF( void ) + t1_builder_add_point( T1_Builder builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ) + { + FT_Outline* outline = builder->current; + + + if ( builder->load_points ) + { + FT_Vector* point = outline->points + outline->n_points; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points; + + + point->x = FIXED_TO_INT( x ); + point->y = FIXED_TO_INT( y ); + *control = (FT_Byte)( flag ? FT_CURVE_TAG_ON : FT_CURVE_TAG_CUBIC ); + } + outline->n_points++; + } + + + /* check space for a new on-curve point, then add it */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_add_point1( T1_Builder builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error; + + + error = t1_builder_check_points( builder, 1 ); + if ( !error ) + t1_builder_add_point( builder, x, y, 1 ); + + return error; + } + + + /* check space for a new contour, then add it */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_add_contour( T1_Builder builder ) + { + FT_Outline* outline = builder->current; + FT_Error error; + + + /* this might happen in invalid fonts */ + if ( !outline ) + { + FT_ERROR(( "t1_builder_add_contour: no outline to add points to\n" )); + return PSaux_Err_Invalid_File_Format; + } + + if ( !builder->load_points ) + { + outline->n_contours++; + return PSaux_Err_Ok; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( builder->loader, 0, 1 ); + if ( !error ) + { + if ( outline->n_contours > 0 ) + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + + outline->n_contours++; + } + + return error; + } + + + /* if a path was begun, add its first on-curve point */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_start_point( T1_Builder builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error = PSaux_Err_Invalid_File_Format; + + + /* test whether we are building a new contour */ + + if ( builder->parse_state == T1_Parse_Have_Path ) + error = PSaux_Err_Ok; + else + { + builder->parse_state = T1_Parse_Have_Path; + error = t1_builder_add_contour( builder ); + if ( !error ) + error = t1_builder_add_point1( builder, x, y ); + } + + return error; + } + + + /* close the current contour */ + FT_LOCAL_DEF( void ) + t1_builder_close_contour( T1_Builder builder ) + { + FT_Outline* outline = builder->current; + FT_Int first; + + + if ( !outline ) + return; + + first = outline->n_contours <= 1 + ? 0 : outline->contours[outline->n_contours - 2] + 1; + + /* We must not include the last point in the path if it */ + /* is located on the first point. */ + if ( outline->n_points > 1 ) + { + FT_Vector* p1 = outline->points + first; + FT_Vector* p2 = outline->points + outline->n_points - 1; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points - 1; + + + /* `delete' last point only if it coincides with the first */ + /* point and it is not a control point (which can happen). */ + if ( p1->x == p2->x && p1->y == p2->y ) + if ( *control == FT_CURVE_TAG_ON ) + outline->n_points--; + } + + if ( outline->n_contours > 0 ) + { + /* Don't add contours only consisting of one point, i.e., */ + /* check whether the first and the last point is the same. */ + if ( first == outline->n_points - 1 ) + { + outline->n_contours--; + outline->n_points--; + } + else + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** OTHER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + t1_decrypt( FT_Byte* buffer, + FT_Offset length, + FT_UShort seed ) + { + PS_Conv_EexecDecode( &buffer, + buffer + length, + buffer, + length, + &seed ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/psobjs.h b/uppsrc/plugin/FT_fontsys/src/psaux/psobjs.h new file mode 100644 index 000000000..6aa5d6224 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/psobjs.h @@ -0,0 +1,212 @@ +/***************************************************************************/ +/* */ +/* psobjs.h */ +/* */ +/* Auxiliary functions for PostScript fonts (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSOBJS_H__ +#define __PSOBJS_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1_TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_TABLE + const PS_Table_FuncsRec ps_table_funcs; + + FT_CALLBACK_TABLE + const PS_Parser_FuncsRec ps_parser_funcs; + + FT_CALLBACK_TABLE + const T1_Builder_FuncsRec t1_builder_funcs; + + + FT_LOCAL( FT_Error ) + ps_table_new( PS_Table table, + FT_Int count, + FT_Memory memory ); + + FT_LOCAL( FT_Error ) + ps_table_add( PS_Table table, + FT_Int idx, + void* object, + FT_PtrDist length ); + + FT_LOCAL( void ) + ps_table_done( PS_Table table ); + + + FT_LOCAL( void ) + ps_table_release( PS_Table table ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL( void ) + ps_parser_skip_spaces( PS_Parser parser ); + + FT_LOCAL( void ) + ps_parser_skip_PS_token( PS_Parser parser ); + + FT_LOCAL( void ) + ps_parser_to_token( PS_Parser parser, + T1_Token token ); + + FT_LOCAL( void ) + ps_parser_to_token_array( PS_Parser parser, + T1_Token tokens, + FT_UInt max_tokens, + FT_Int* pnum_tokens ); + + FT_LOCAL( FT_Error ) + ps_parser_load_field( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + FT_LOCAL( FT_Error ) + ps_parser_load_field_table( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + FT_LOCAL( FT_Long ) + ps_parser_to_int( PS_Parser parser ); + + + FT_LOCAL( FT_Error ) + ps_parser_to_bytes( PS_Parser parser, + FT_Byte* bytes, + FT_Offset max_bytes, + FT_Long* pnum_bytes, + FT_Bool delimiters ); + + + FT_LOCAL( FT_Fixed ) + ps_parser_to_fixed( PS_Parser parser, + FT_Int power_ten ); + + + FT_LOCAL( FT_Int ) + ps_parser_to_coord_array( PS_Parser parser, + FT_Int max_coords, + FT_Short* coords ); + + FT_LOCAL( FT_Int ) + ps_parser_to_fixed_array( PS_Parser parser, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ); + + + FT_LOCAL( void ) + ps_parser_init( PS_Parser parser, + FT_Byte* base, + FT_Byte* limit, + FT_Memory memory ); + + FT_LOCAL( void ) + ps_parser_done( PS_Parser parser ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + t1_builder_init( T1_Builder builder, + FT_Face face, + FT_Size size, + FT_GlyphSlot glyph, + FT_Bool hinting ); + + FT_LOCAL( void ) + t1_builder_done( T1_Builder builder ); + + FT_LOCAL( FT_Error ) + t1_builder_check_points( T1_Builder builder, + FT_Int count ); + + FT_LOCAL( void ) + t1_builder_add_point( T1_Builder builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ); + + FT_LOCAL( FT_Error ) + t1_builder_add_point1( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + FT_LOCAL( FT_Error ) + t1_builder_add_contour( T1_Builder builder ); + + + FT_LOCAL( FT_Error ) + t1_builder_start_point( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + + FT_LOCAL( void ) + t1_builder_close_contour( T1_Builder builder ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** OTHER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + t1_decrypt( FT_Byte* buffer, + FT_Offset length, + FT_UShort seed ); + + +FT_END_HEADER + +#endif /* __PSOBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/rules.mk b/uppsrc/plugin/FT_fontsys/src/psaux/rules.mk new file mode 100644 index 000000000..7a1be37b6 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 PSaux driver configuration rules +# + + +# Copyright 1996-2000, 2002, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# PSAUX driver directory +# +PSAUX_DIR := $(SRC_DIR)/psaux + + +# compilation flags for the driver +# +PSAUX_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(PSAUX_DIR)) + + +# PSAUX driver sources (i.e., C files) +# +PSAUX_DRV_SRC := $(PSAUX_DIR)/psobjs.c \ + $(PSAUX_DIR)/t1decode.c \ + $(PSAUX_DIR)/t1cmap.c \ + $(PSAUX_DIR)/afmparse.c \ + $(PSAUX_DIR)/psconv.c \ + $(PSAUX_DIR)/psauxmod.c + +# PSAUX driver headers +# +PSAUX_DRV_H := $(PSAUX_DRV_SRC:%c=%h) \ + $(PSAUX_DIR)/psauxerr.h + + +# PSAUX driver object(s) +# +# PSAUX_DRV_OBJ_M is used during `multi' builds. +# PSAUX_DRV_OBJ_S is used during `single' builds. +# +PSAUX_DRV_OBJ_M := $(PSAUX_DRV_SRC:$(PSAUX_DIR)/%.c=$(OBJ_DIR)/%.$O) +PSAUX_DRV_OBJ_S := $(OBJ_DIR)/psaux.$O + +# PSAUX driver source file for single build +# +PSAUX_DRV_SRC_S := $(PSAUX_DIR)/psaux.c + + +# PSAUX driver - single object +# +$(PSAUX_DRV_OBJ_S): $(PSAUX_DRV_SRC_S) $(PSAUX_DRV_SRC) \ + $(FREETYPE_H) $(PSAUX_DRV_H) + $(PSAUX_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSAUX_DRV_SRC_S)) + + +# PSAUX driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(PSAUX_DIR)/%.c $(FREETYPE_H) $(PSAUX_DRV_H) + $(PSAUX_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(PSAUX_DRV_OBJ_S) +DRV_OBJS_M += $(PSAUX_DRV_OBJ_M) + + +# EOF diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.c b/uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.c new file mode 100644 index 000000000..f933e4da8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.c @@ -0,0 +1,341 @@ +/***************************************************************************/ +/* */ +/* t1cmap.c */ +/* */ +/* Type 1 character map support (body). */ +/* */ +/* Copyright 2002, 2003, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "t1cmap.h" + +#include FT_INTERNAL_DEBUG_H + +#include "psauxerr.h" + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + t1_cmap_std_init( T1_CMapStd cmap, + FT_Int is_expert ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( cmap ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + cmap->num_glyphs = face->type1.num_glyphs; + cmap->glyph_names = (const char* const*)face->type1.glyph_names; + cmap->sid_to_string = psnames->adobe_std_strings; + cmap->code_to_sid = is_expert ? psnames->adobe_expert_encoding + : psnames->adobe_std_encoding; + + FT_ASSERT( cmap->code_to_sid != NULL ); + } + + + FT_CALLBACK_DEF( void ) + t1_cmap_std_done( T1_CMapStd cmap ) + { + cmap->num_glyphs = 0; + cmap->glyph_names = NULL; + cmap->sid_to_string = NULL; + cmap->code_to_sid = NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + t1_cmap_std_char_index( T1_CMapStd cmap, + FT_UInt32 char_code ) + { + FT_UInt result = 0; + + + if ( char_code < 256 ) + { + FT_UInt code, n; + const char* glyph_name; + + + /* convert character code to Adobe SID string */ + code = cmap->code_to_sid[char_code]; + glyph_name = cmap->sid_to_string( code ); + + /* look for the corresponding glyph name */ + for ( n = 0; n < cmap->num_glyphs; n++ ) + { + const char* gname = cmap->glyph_names[n]; + + + if ( gname && gname[0] == glyph_name[0] && + ft_strcmp( gname, glyph_name ) == 0 ) + { + result = n; + break; + } + } + } + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + t1_cmap_std_char_next( T1_CMapStd cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code + 1; + + + while ( char_code < 256 ) + { + result = t1_cmap_std_char_index( cmap, char_code ); + if ( result != 0 ) + goto Exit; + + char_code++; + } + char_code = 0; + + Exit: + *pchar_code = char_code; + return result; + } + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_standard_init( T1_CMapStd cmap ) + { + t1_cmap_std_init( cmap, 0 ); + return 0; + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_standard_class_rec = + { + sizeof ( T1_CMapStdRec ), + + (FT_CMap_InitFunc) t1_cmap_standard_init, + (FT_CMap_DoneFunc) t1_cmap_std_done, + (FT_CMap_CharIndexFunc)t1_cmap_std_char_index, + (FT_CMap_CharNextFunc) t1_cmap_std_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_expert_init( T1_CMapStd cmap ) + { + t1_cmap_std_init( cmap, 1 ); + return 0; + } + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_expert_class_rec = + { + sizeof ( T1_CMapStdRec ), + + (FT_CMap_InitFunc) t1_cmap_expert_init, + (FT_CMap_DoneFunc) t1_cmap_std_done, + (FT_CMap_CharIndexFunc)t1_cmap_std_char_index, + (FT_CMap_CharNextFunc) t1_cmap_std_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 CUSTOM ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_custom_init( T1_CMapCustom cmap ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( cmap ); + T1_Encoding encoding = &face->type1.encoding; + + + cmap->first = encoding->code_first; + cmap->count = (FT_UInt)( encoding->code_last - cmap->first ); + cmap->indices = encoding->char_index; + + FT_ASSERT( cmap->indices != NULL ); + FT_ASSERT( encoding->code_first <= encoding->code_last ); + + return 0; + } + + + FT_CALLBACK_DEF( void ) + t1_cmap_custom_done( T1_CMapCustom cmap ) + { + cmap->indices = NULL; + cmap->first = 0; + cmap->count = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + t1_cmap_custom_char_index( T1_CMapCustom cmap, + FT_UInt32 char_code ) + { + FT_UInt result = 0; + + + if ( ( char_code >= cmap->first ) && + ( char_code < ( cmap->first + cmap->count ) ) ) + result = cmap->indices[char_code]; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + t1_cmap_custom_char_next( T1_CMapCustom cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code; + + + ++char_code; + + if ( char_code < cmap->first ) + char_code = cmap->first; + + for ( ; char_code < ( cmap->first + cmap->count ); char_code++ ) + { + result = cmap->indices[char_code]; + if ( result != 0 ) + goto Exit; + } + + char_code = 0; + + Exit: + *pchar_code = char_code; + return result; + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_custom_class_rec = + { + sizeof ( T1_CMapCustomRec ), + + (FT_CMap_InitFunc) t1_cmap_custom_init, + (FT_CMap_DoneFunc) t1_cmap_custom_done, + (FT_CMap_CharIndexFunc)t1_cmap_custom_char_index, + (FT_CMap_CharNextFunc) t1_cmap_custom_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( const char * ) + t1_get_glyph_name( T1_Face face, + FT_UInt idx ) + { + return face->type1.glyph_names[idx]; + } + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_unicode_init( PS_Unicodes unicodes ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + return psnames->unicodes_init( memory, + unicodes, + face->type1.num_glyphs, + (PS_GetGlyphNameFunc)&t1_get_glyph_name, + (PS_FreeGlyphNameFunc)NULL, + (FT_Pointer)face ); + } + + + FT_CALLBACK_DEF( void ) + t1_cmap_unicode_done( PS_Unicodes unicodes ) + { + FT_Face face = FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( unicodes->maps ); + unicodes->num_maps = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + t1_cmap_unicode_char_index( PS_Unicodes unicodes, + FT_UInt32 char_code ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + return psnames->unicodes_char_index( unicodes, char_code ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + t1_cmap_unicode_char_next( PS_Unicodes unicodes, + FT_UInt32 *pchar_code ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + return psnames->unicodes_char_next( unicodes, pchar_code ); + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_unicode_class_rec = + { + sizeof ( PS_UnicodesRec ), + + (FT_CMap_InitFunc) t1_cmap_unicode_init, + (FT_CMap_DoneFunc) t1_cmap_unicode_done, + (FT_CMap_CharIndexFunc)t1_cmap_unicode_char_index, + (FT_CMap_CharNextFunc) t1_cmap_unicode_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.h b/uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.h new file mode 100644 index 000000000..c61a2ee34 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/t1cmap.h @@ -0,0 +1,105 @@ +/***************************************************************************/ +/* */ +/* t1cmap.h */ +/* */ +/* Type 1 character map support (specification). */ +/* */ +/* Copyright 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1CMAP_H__ +#define __T1CMAP_H__ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_TYPE1_TYPES_H + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* standard (and expert) encoding cmaps */ + typedef struct T1_CMapStdRec_* T1_CMapStd; + + typedef struct T1_CMapStdRec_ + { + FT_CMapRec cmap; + + const FT_UShort* code_to_sid; + PS_Adobe_Std_StringsFunc sid_to_string; + + FT_UInt num_glyphs; + const char* const* glyph_names; + + } T1_CMapStdRec; + + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_standard_class_rec; + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_expert_class_rec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 CUSTOM ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct T1_CMapCustomRec_* T1_CMapCustom; + + typedef struct T1_CMapCustomRec_ + { + FT_CMapRec cmap; + FT_UInt first; + FT_UInt count; + FT_UShort* indices; + + } T1_CMapCustomRec; + + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_custom_class_rec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* unicode (synthetic) cmaps */ + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_unicode_class_rec; + + /* */ + + +FT_END_HEADER + +#endif /* __T1CMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/t1decode.c b/uppsrc/plugin/FT_fontsys/src/psaux/t1decode.c new file mode 100644 index 000000000..0aa307157 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/t1decode.c @@ -0,0 +1,1607 @@ +/***************************************************************************/ +/* */ +/* t1decode.c */ +/* */ +/* PostScript Type 1 decoding routines (body). */ +/* */ +/* Copyright 2000-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H +#include FT_OUTLINE_H + +#include "t1decode.h" +#include "psobjs.h" + +#include "psauxerr.h" + +/* ensure proper sign extension */ +#define Fix2Int( f ) ( (FT_Int)(FT_Short)( (f) >> 16 ) ) + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1decode + + + typedef enum T1_Operator_ + { + op_none = 0, + op_endchar, + op_hsbw, + op_seac, + op_sbw, + op_closepath, + op_hlineto, + op_hmoveto, + op_hvcurveto, + op_rlineto, + op_rmoveto, + op_rrcurveto, + op_vhcurveto, + op_vlineto, + op_vmoveto, + op_dotsection, + op_hstem, + op_hstem3, + op_vstem, + op_vstem3, + op_div, + op_callothersubr, + op_callsubr, + op_pop, + op_return, + op_setcurrentpoint, + op_unknown15, + + op_max /* never remove this one */ + + } T1_Operator; + + + static + const FT_Int t1_args_count[op_max] = + { + 0, /* none */ + 0, /* endchar */ + 2, /* hsbw */ + 5, /* seac */ + 4, /* sbw */ + 0, /* closepath */ + 1, /* hlineto */ + 1, /* hmoveto */ + 4, /* hvcurveto */ + 2, /* rlineto */ + 2, /* rmoveto */ + 6, /* rrcurveto */ + 4, /* vhcurveto */ + 1, /* vlineto */ + 1, /* vmoveto */ + 0, /* dotsection */ + 2, /* hstem */ + 6, /* hstem3 */ + 2, /* vstem */ + 6, /* vstem3 */ + 2, /* div */ + -1, /* callothersubr */ + 1, /* callsubr */ + 0, /* pop */ + 0, /* return */ + 2, /* setcurrentpoint */ + 2 /* opcode 15 (undocumented and obsolete) */ + }; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_lookup_glyph_by_stdcharcode */ + /* */ + /* <Description> */ + /* Looks up a given glyph by its StandardEncoding charcode. Used to */ + /* implement the SEAC Type 1 operator. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* charcode :: The character code to look for. */ + /* */ + /* <Return> */ + /* A glyph index in the font face. Returns -1 if the corresponding */ + /* glyph wasn't found. */ + /* */ + static FT_Int + t1_lookup_glyph_by_stdcharcode( T1_Decoder decoder, + FT_Int charcode ) + { + FT_UInt n; + const FT_String* glyph_name; + FT_Service_PsCMaps psnames = decoder->psnames; + + + /* check range of standard char code */ + if ( charcode < 0 || charcode > 255 ) + return -1; + + glyph_name = psnames->adobe_std_strings( + psnames->adobe_std_encoding[charcode]); + + for ( n = 0; n < decoder->num_glyphs; n++ ) + { + FT_String* name = (FT_String*)decoder->glyph_names[n]; + + + if ( name && + name[0] == glyph_name[0] && + ft_strcmp( name, glyph_name ) == 0 ) + return n; + } + + return -1; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1operator_seac */ + /* */ + /* <Description> */ + /* Implements the `seac' Type 1 operator for a Type 1 decoder. */ + /* */ + /* <Input> */ + /* decoder :: The current CID decoder. */ + /* */ + /* asb :: The accent's side bearing. */ + /* */ + /* adx :: The horizontal offset of the accent. */ + /* */ + /* ady :: The vertical offset of the accent. */ + /* */ + /* bchar :: The base character's StandardEncoding charcode. */ + /* */ + /* achar :: The accent character's StandardEncoding charcode. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + t1operator_seac( T1_Decoder decoder, + FT_Pos asb, + FT_Pos adx, + FT_Pos ady, + FT_Int bchar, + FT_Int achar ) + { + FT_Error error; + FT_Int bchar_index, achar_index; +#if 0 + FT_Int n_base_points; + FT_Outline* base = decoder->builder.base; +#endif + FT_Vector left_bearing, advance; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + T1_Face face = (T1_Face)decoder->builder.face; +#endif + + + if ( decoder->seac ) + { + FT_ERROR(( "t1operator_seac: invalid nested seac\n" )); + return PSaux_Err_Syntax_Error; + } + + /* seac weirdness */ + adx += decoder->builder.left_bearing.x; + + /* `glyph_names' is set to 0 for CID fonts which do not */ + /* include an encoding. How can we deal with these? */ +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( decoder->glyph_names == 0 && + !face->root.internal->incremental_interface ) +#else + if ( decoder->glyph_names == 0 ) +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + FT_ERROR(( "t1operator_seac:" + " glyph names table not available in this font\n" )); + return PSaux_Err_Syntax_Error; + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( face->root.internal->incremental_interface ) + { + /* the caller must handle the font encoding also */ + bchar_index = bchar; + achar_index = achar; + } + else +#endif + { + bchar_index = t1_lookup_glyph_by_stdcharcode( decoder, bchar ); + achar_index = t1_lookup_glyph_by_stdcharcode( decoder, achar ); + } + + if ( bchar_index < 0 || achar_index < 0 ) + { + FT_ERROR(( "t1operator_seac:" + " invalid seac character code arguments\n" )); + return PSaux_Err_Syntax_Error; + } + + /* if we are trying to load a composite glyph, do not load the */ + /* accent character and return the array of subglyphs. */ + if ( decoder->builder.no_recurse ) + { + FT_GlyphSlot glyph = (FT_GlyphSlot)decoder->builder.glyph; + FT_GlyphLoader loader = glyph->internal->loader; + FT_SubGlyph subg; + + + /* reallocate subglyph array if necessary */ + error = FT_GlyphLoader_CheckSubGlyphs( loader, 2 ); + if ( error ) + goto Exit; + + subg = loader->current.subglyphs; + + /* subglyph 0 = base character */ + subg->index = bchar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES | + FT_SUBGLYPH_FLAG_USE_MY_METRICS; + subg->arg1 = 0; + subg->arg2 = 0; + subg++; + + /* subglyph 1 = accent character */ + subg->index = achar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES; + subg->arg1 = (FT_Int)FIXED_TO_INT( adx - asb ); + subg->arg2 = (FT_Int)FIXED_TO_INT( ady ); + + /* set up remaining glyph fields */ + glyph->num_subglyphs = 2; + glyph->subglyphs = loader->base.subglyphs; + glyph->format = FT_GLYPH_FORMAT_COMPOSITE; + + loader->current.num_subglyphs = 2; + goto Exit; + } + + /* First load `bchar' in builder */ + /* now load the unscaled outline */ + + FT_GlyphLoader_Prepare( decoder->builder.loader ); /* prepare loader */ + + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = t1_decoder_parse_glyph( decoder, bchar_index ); + decoder->seac = FALSE; + if ( error ) + goto Exit; + + /* save the left bearing and width of the base character */ + /* as they will be erased by the next load. */ + + left_bearing = decoder->builder.left_bearing; + advance = decoder->builder.advance; + + decoder->builder.left_bearing.x = 0; + decoder->builder.left_bearing.y = 0; + + decoder->builder.pos_x = adx - asb; + decoder->builder.pos_y = ady; + + /* Now load `achar' on top of */ + /* the base outline */ + + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = t1_decoder_parse_glyph( decoder, achar_index ); + decoder->seac = FALSE; + if ( error ) + goto Exit; + + /* restore the left side bearing and */ + /* advance width of the base character */ + + decoder->builder.left_bearing = left_bearing; + decoder->builder.advance = advance; + + decoder->builder.pos_x = 0; + decoder->builder.pos_y = 0; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_decoder_parse_charstrings */ + /* */ + /* <Description> */ + /* Parses a given Type 1 charstrings program. */ + /* */ + /* <Input> */ + /* decoder :: The current Type 1 decoder. */ + /* */ + /* charstring_base :: The base address of the charstring stream. */ + /* */ + /* charstring_len :: The length in bytes of the charstring stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + t1_decoder_parse_charstrings( T1_Decoder decoder, + FT_Byte* charstring_base, + FT_UInt charstring_len ) + { + FT_Error error; + T1_Decoder_Zone zone; + FT_Byte* ip; + FT_Byte* limit; + T1_Builder builder = &decoder->builder; + FT_Pos x, y, orig_x, orig_y; + FT_Int known_othersubr_result_cnt = 0; + FT_Int unknown_othersubr_result_cnt = 0; + FT_Bool large_int; + FT_Fixed seed; + + T1_Hints_Funcs hinter; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Bool bol = TRUE; +#endif + + + /* compute random seed from stack address of parameter */ + seed = (FT_Fixed)( ( (FT_PtrDist)(char*)&seed ^ + (FT_PtrDist)(char*)&decoder ^ + (FT_PtrDist)(char*)&charstring_base ) & + FT_ULONG_MAX ) ; + seed = ( seed ^ ( seed >> 10 ) ^ ( seed >> 20 ) ) & 0xFFFFL; + if ( seed == 0 ) + seed = 0x7384; + + /* First of all, initialize the decoder */ + decoder->top = decoder->stack; + decoder->zone = decoder->zones; + zone = decoder->zones; + + builder->parse_state = T1_Parse_Start; + + hinter = (T1_Hints_Funcs)builder->hints_funcs; + + /* a font that reads BuildCharArray without setting */ + /* its values first is buggy, but ... */ + FT_ASSERT( ( decoder->len_buildchar == 0 ) == + ( decoder->buildchar == NULL ) ); + + if ( decoder->buildchar && decoder->len_buildchar > 0 ) + ft_memset( &decoder->buildchar[0], + 0, + sizeof( decoder->buildchar[0] ) * decoder->len_buildchar ); + + FT_TRACE4(( "\n" + "Start charstring\n" )); + + zone->base = charstring_base; + limit = zone->limit = charstring_base + charstring_len; + ip = zone->cursor = zone->base; + + error = PSaux_Err_Ok; + + x = orig_x = builder->pos_x; + y = orig_y = builder->pos_y; + + /* begin hints recording session, if any */ + if ( hinter ) + hinter->open( hinter->hints ); + + large_int = FALSE; + + /* now, execute loop */ + while ( ip < limit ) + { + FT_Long* top = decoder->top; + T1_Operator op = op_none; + FT_Int32 value = 0; + + + FT_ASSERT( known_othersubr_result_cnt == 0 || + unknown_othersubr_result_cnt == 0 ); + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( bol ) + { + FT_TRACE5(( " (%d)", decoder->top - decoder->stack )); + bol = FALSE; + } +#endif + + /*********************************************************************/ + /* */ + /* Decode operator or operand */ + /* */ + /* */ + + /* first of all, decompress operator or value */ + switch ( *ip++ ) + { + case 1: + op = op_hstem; + break; + + case 3: + op = op_vstem; + break; + case 4: + op = op_vmoveto; + break; + case 5: + op = op_rlineto; + break; + case 6: + op = op_hlineto; + break; + case 7: + op = op_vlineto; + break; + case 8: + op = op_rrcurveto; + break; + case 9: + op = op_closepath; + break; + case 10: + op = op_callsubr; + break; + case 11: + op = op_return; + break; + + case 13: + op = op_hsbw; + break; + case 14: + op = op_endchar; + break; + + case 15: /* undocumented, obsolete operator */ + op = op_unknown15; + break; + + case 21: + op = op_rmoveto; + break; + case 22: + op = op_hmoveto; + break; + + case 30: + op = op_vhcurveto; + break; + case 31: + op = op_hvcurveto; + break; + + case 12: + if ( ip > limit ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid escape (12+EOF)\n" )); + goto Syntax_Error; + } + + switch ( *ip++ ) + { + case 0: + op = op_dotsection; + break; + case 1: + op = op_vstem3; + break; + case 2: + op = op_hstem3; + break; + case 6: + op = op_seac; + break; + case 7: + op = op_sbw; + break; + case 12: + op = op_div; + break; + case 16: + op = op_callothersubr; + break; + case 17: + op = op_pop; + break; + case 33: + op = op_setcurrentpoint; + break; + + default: + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid escape (12+%d)\n", + ip[-1] )); + goto Syntax_Error; + } + break; + + case 255: /* four bytes integer */ + if ( ip + 4 > limit ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected EOF in integer\n" )); + goto Syntax_Error; + } + + value = (FT_Int32)( ( (FT_Long)ip[0] << 24 ) | + ( (FT_Long)ip[1] << 16 ) | + ( (FT_Long)ip[2] << 8 ) | + ip[3] ); + ip += 4; + + /* According to the specification, values > 32000 or < -32000 must */ + /* be followed by a `div' operator to make the result be in the */ + /* range [-32000;32000]. We expect that the second argument of */ + /* `div' is not a large number. Additionally, we don't handle */ + /* stuff like `<large1> <large2> <num> div <num> div' or */ + /* <large1> <large2> <num> div div'. This is probably not allowed */ + /* anyway. */ + if ( value > 32000 || value < -32000 ) + { + if ( large_int ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " no `div' after large integer\n" )); + } + else + large_int = TRUE; + } + else + { + if ( !large_int ) + value <<= 16; + } + + break; + + default: + if ( ip[-1] >= 32 ) + { + if ( ip[-1] < 247 ) + value = (FT_Int32)ip[-1] - 139; + else + { + if ( ++ip > limit ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected EOF in integer\n" )); + goto Syntax_Error; + } + + if ( ip[-2] < 251 ) + value = ( ( (FT_Int32)ip[-2] - 247 ) << 8 ) + ip[-1] + 108; + else + value = -( ( ( (FT_Int32)ip[-2] - 251 ) << 8 ) + ip[-1] + 108 ); + } + + if ( !large_int ) + value <<= 16; + } + else + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid byte (%d)\n", ip[-1] )); + goto Syntax_Error; + } + } + + if ( unknown_othersubr_result_cnt > 0 ) + { + switch ( op ) + { + case op_callsubr: + case op_return: + case op_none: + case op_pop: + break; + + default: + /* all operands have been transferred by previous pops */ + unknown_othersubr_result_cnt = 0; + break; + } + } + + if ( large_int && !( op == op_none || op == op_div ) ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " no `div' after large integer\n" )); + + large_int = FALSE; + } + + /*********************************************************************/ + /* */ + /* Push value on stack, or process operator */ + /* */ + /* */ + if ( op == op_none ) + { + if ( top - decoder->stack >= T1_MAX_CHARSTRINGS_OPERANDS ) + { + FT_ERROR(( "t1_decoder_parse_charstrings: stack overflow\n" )); + goto Syntax_Error; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( large_int ) + FT_TRACE4(( " %ld", value )); + else + FT_TRACE4(( " %ld", Fix2Int( value ) )); +#endif + + *top++ = value; + decoder->top = top; + } + else if ( op == op_callothersubr ) /* callothersubr */ + { + FT_Int subr_no; + FT_Int arg_cnt; + + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE4(( " callothersubr\n" )); + bol = TRUE; +#endif + + if ( top - decoder->stack < 2 ) + goto Stack_Underflow; + + top -= 2; + + subr_no = Fix2Int( top[1] ); + arg_cnt = Fix2Int( top[0] ); + + /***********************************************************/ + /* */ + /* remove all operands to callothersubr from the stack */ + /* */ + /* for handled othersubrs, where we know the number of */ + /* arguments, we increase the stack by the value of */ + /* known_othersubr_result_cnt */ + /* */ + /* for unhandled othersubrs the following pops adjust the */ + /* stack pointer as necessary */ + + if ( arg_cnt > top - decoder->stack ) + goto Stack_Underflow; + + top -= arg_cnt; + + known_othersubr_result_cnt = 0; + unknown_othersubr_result_cnt = 0; + + /* XXX TODO: The checks to `arg_count == <whatever>' */ + /* might not be correct; an othersubr expects a certain */ + /* number of operands on the PostScript stack (as opposed */ + /* to the T1 stack) but it doesn't have to put them there */ + /* by itself; previous othersubrs might have left the */ + /* operands there if they were not followed by an */ + /* appropriate number of pops */ + /* */ + /* On the other hand, Adobe Reader 7.0.8 for Linux doesn't */ + /* accept a font that contains charstrings like */ + /* */ + /* 100 200 2 20 callothersubr */ + /* 300 1 20 callothersubr pop */ + /* */ + /* Perhaps this is the reason why BuildCharArray exists. */ + + switch ( subr_no ) + { + case 0: /* end flex feature */ + if ( arg_cnt != 3 ) + goto Unexpected_OtherSubr; + + if ( decoder->flex_state == 0 || + decoder->num_flex_vectors != 7 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected flex end\n" )); + goto Syntax_Error; + } + + /* the two `results' are popped by the following setcurrentpoint */ + top[0] = x; + top[1] = y; + known_othersubr_result_cnt = 2; + break; + + case 1: /* start flex feature */ + if ( arg_cnt != 0 ) + goto Unexpected_OtherSubr; + + decoder->flex_state = 1; + decoder->num_flex_vectors = 0; + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 6 ) ) + != PSaux_Err_Ok ) + goto Fail; + break; + + case 2: /* add flex vectors */ + { + FT_Int idx; + + + if ( arg_cnt != 0 ) + goto Unexpected_OtherSubr; + + /* note that we should not add a point for index 0; */ + /* this will move our current position to the flex */ + /* point without adding any point to the outline */ + idx = decoder->num_flex_vectors++; + if ( idx > 0 && idx < 7 ) + t1_builder_add_point( builder, + x, + y, + (FT_Byte)( idx == 3 || idx == 6 ) ); + } + break; + + case 3: /* change hints */ + if ( arg_cnt != 1 ) + goto Unexpected_OtherSubr; + + known_othersubr_result_cnt = 1; + + if ( hinter ) + hinter->reset( hinter->hints, builder->current->n_points ); + break; + + case 12: + case 13: + /* counter control hints, clear stack */ + top = decoder->stack; + break; + + case 14: + case 15: + case 16: + case 17: + case 18: /* multiple masters */ + { + PS_Blend blend = decoder->blend; + FT_UInt num_points, nn, mm; + FT_Long* delta; + FT_Long* values; + + + if ( !blend ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected multiple masters operator\n" )); + goto Syntax_Error; + } + + num_points = (FT_UInt)subr_no - 13 + ( subr_no == 18 ); + if ( arg_cnt != (FT_Int)( num_points * blend->num_designs ) ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " incorrect number of multiple masters arguments\n" )); + goto Syntax_Error; + } + + /* We want to compute */ + /* */ + /* a0*w0 + a1*w1 + ... + ak*wk */ + /* */ + /* but we only have a0, a1-a0, a2-a0, ..., ak-a0. */ + /* */ + /* However, given that w0 + w1 + ... + wk == 1, we can */ + /* rewrite it easily as */ + /* */ + /* a0 + (a1-a0)*w1 + (a2-a0)*w2 + ... + (ak-a0)*wk */ + /* */ + /* where k == num_designs-1. */ + /* */ + /* I guess that's why it's written in this `compact' */ + /* form. */ + /* */ + delta = top + num_points; + values = top; + for ( nn = 0; nn < num_points; nn++ ) + { + FT_Long tmp = values[0]; + + + for ( mm = 1; mm < blend->num_designs; mm++ ) + tmp += FT_MulFix( *delta++, blend->weight_vector[mm] ); + + *values++ = tmp; + } + + known_othersubr_result_cnt = num_points; + break; + } + + case 19: + /* <idx> 1 19 callothersubr */ + /* => replace elements starting from index cvi( <idx> ) */ + /* of BuildCharArray with WeightVector */ + { + FT_Int idx; + PS_Blend blend = decoder->blend; + + + if ( arg_cnt != 1 || blend == NULL ) + goto Unexpected_OtherSubr; + + idx = Fix2Int( top[0] ); + + if ( idx < 0 || + idx + blend->num_designs > decoder->len_buildchar ) + goto Unexpected_OtherSubr; + + ft_memcpy( &decoder->buildchar[idx], + blend->weight_vector, + blend->num_designs * + sizeof( blend->weight_vector[0] ) ); + } + break; + + case 20: + /* <arg1> <arg2> 2 20 callothersubr pop */ + /* ==> push <arg1> + <arg2> onto T1 stack */ + if ( arg_cnt != 2 ) + goto Unexpected_OtherSubr; + + top[0] += top[1]; /* XXX (over|under)flow */ + + known_othersubr_result_cnt = 1; + break; + + case 21: + /* <arg1> <arg2> 2 21 callothersubr pop */ + /* ==> push <arg1> - <arg2> onto T1 stack */ + if ( arg_cnt != 2 ) + goto Unexpected_OtherSubr; + + top[0] -= top[1]; /* XXX (over|under)flow */ + + known_othersubr_result_cnt = 1; + break; + + case 22: + /* <arg1> <arg2> 2 22 callothersubr pop */ + /* ==> push <arg1> * <arg2> onto T1 stack */ + if ( arg_cnt != 2 ) + goto Unexpected_OtherSubr; + + top[0] = FT_MulFix( top[0], top[1] ); + + known_othersubr_result_cnt = 1; + break; + + case 23: + /* <arg1> <arg2> 2 23 callothersubr pop */ + /* ==> push <arg1> / <arg2> onto T1 stack */ + if ( arg_cnt != 2 || top[1] == 0 ) + goto Unexpected_OtherSubr; + + top[0] = FT_DivFix( top[0], top[1] ); + + known_othersubr_result_cnt = 1; + break; + + case 24: + /* <val> <idx> 2 24 callothersubr */ + /* ==> set BuildCharArray[cvi( <idx> )] = <val> */ + { + FT_Int idx; + PS_Blend blend = decoder->blend; + + + if ( arg_cnt != 2 || blend == NULL ) + goto Unexpected_OtherSubr; + + idx = Fix2Int( top[1] ); + + if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar ) + goto Unexpected_OtherSubr; + + decoder->buildchar[idx] = top[0]; + } + break; + + case 25: + /* <idx> 1 25 callothersubr pop */ + /* ==> push BuildCharArray[cvi( idx )] */ + /* onto T1 stack */ + { + FT_Int idx; + PS_Blend blend = decoder->blend; + + + if ( arg_cnt != 1 || blend == NULL ) + goto Unexpected_OtherSubr; + + idx = Fix2Int( top[0] ); + + if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar ) + goto Unexpected_OtherSubr; + + top[0] = decoder->buildchar[idx]; + } + + known_othersubr_result_cnt = 1; + break; + +#if 0 + case 26: + /* <val> mark <idx> ==> set BuildCharArray[cvi( <idx> )] = <val>, */ + /* leave mark on T1 stack */ + /* <val> <idx> ==> set BuildCharArray[cvi( <idx> )] = <val> */ + XXX which routine has left its mark on the (PostScript) stack?; + break; +#endif + + case 27: + /* <res1> <res2> <val1> <val2> 4 27 callothersubr pop */ + /* ==> push <res1> onto T1 stack if <val1> <= <val2>, */ + /* otherwise push <res2> */ + if ( arg_cnt != 4 ) + goto Unexpected_OtherSubr; + + if ( top[2] > top[3] ) + top[0] = top[1]; + + known_othersubr_result_cnt = 1; + break; + + case 28: + /* 0 28 callothersubr pop */ + /* => push random value from interval [0, 1) onto stack */ + if ( arg_cnt != 0 ) + goto Unexpected_OtherSubr; + + { + FT_Fixed Rand; + + + Rand = seed; + if ( Rand >= 0x8000L ) + Rand++; + + top[0] = Rand; + + seed = FT_MulFix( seed, 0x10000L - seed ); + if ( seed == 0 ) + seed += 0x2873; + } + + known_othersubr_result_cnt = 1; + break; + + default: + if ( arg_cnt >= 0 && subr_no >= 0 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unknown othersubr [%d %d], wish me luck\n", + arg_cnt, subr_no )); + unknown_othersubr_result_cnt = arg_cnt; + break; + } + /* fall through */ + + Unexpected_OtherSubr: + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid othersubr [%d %d]\n", arg_cnt, subr_no )); + goto Syntax_Error; + } + + top += known_othersubr_result_cnt; + + decoder->top = top; + } + else /* general operator */ + { + FT_Int num_args = t1_args_count[op]; + + + FT_ASSERT( num_args >= 0 ); + + if ( top - decoder->stack < num_args ) + goto Stack_Underflow; + + /* XXX Operators usually take their operands from the */ + /* bottom of the stack, i.e., the operands are */ + /* decoder->stack[0], ..., decoder->stack[num_args - 1]; */ + /* only div, callsubr, and callothersubr are different. */ + /* In practice it doesn't matter (?). */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + switch ( op ) + { + case op_callsubr: + case op_div: + case op_callothersubr: + case op_pop: + case op_return: + break; + + default: + if ( top - decoder->stack != num_args ) + FT_TRACE0(( "t1_decoder_parse_charstrings:" + " too much operands on the stack" + " (seen %d, expected %d)\n", + top - decoder->stack, num_args )); + break; + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + top -= num_args; + + switch ( op ) + { + case op_endchar: + FT_TRACE4(( " endchar\n" )); + + t1_builder_close_contour( builder ); + + /* close hints recording session */ + if ( hinter ) + { + if ( hinter->close( hinter->hints, builder->current->n_points ) ) + goto Syntax_Error; + + /* apply hints to the loaded glyph outline now */ + hinter->apply( hinter->hints, + builder->current, + (PSH_Globals)builder->hints_globals, + decoder->hint_mode ); + } + + /* add current outline to the glyph slot */ + FT_GlyphLoader_Add( builder->loader ); + + /* the compiler should optimize away this empty loop but ... */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + if ( decoder->len_buildchar > 0 ) + { + FT_UInt i; + + + FT_TRACE4(( "BuildCharArray = [ " )); + + for ( i = 0; i < decoder->len_buildchar; ++i ) + FT_TRACE4(( "%d ", decoder->buildchar[ i ] )); + + FT_TRACE4(( "]\n" )); + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + FT_TRACE4(( "\n" )); + + /* return now! */ + return PSaux_Err_Ok; + + case op_hsbw: + FT_TRACE4(( " hsbw" )); + + builder->parse_state = T1_Parse_Have_Width; + + builder->left_bearing.x += top[0]; + builder->advance.x = top[1]; + builder->advance.y = 0; + + orig_x = x = builder->pos_x + top[0]; + orig_y = y = builder->pos_y; + + FT_UNUSED( orig_y ); + + /* the `metrics_only' indicates that we only want to compute */ + /* the glyph's metrics (lsb + advance width), not load the */ + /* rest of it; so exit immediately */ + if ( builder->metrics_only ) + return PSaux_Err_Ok; + + break; + + case op_seac: + return t1operator_seac( decoder, + top[0], + top[1], + top[2], + Fix2Int( top[3] ), + Fix2Int( top[4] ) ); + + case op_sbw: + FT_TRACE4(( " sbw" )); + + builder->parse_state = T1_Parse_Have_Width; + + builder->left_bearing.x += top[0]; + builder->left_bearing.y += top[1]; + builder->advance.x = top[2]; + builder->advance.y = top[3]; + + x = builder->pos_x + top[0]; + y = builder->pos_y + top[1]; + + /* the `metrics_only' indicates that we only want to compute */ + /* the glyph's metrics (lsb + advance width), not load the */ + /* rest of it; so exit immediately */ + if ( builder->metrics_only ) + return PSaux_Err_Ok; + + break; + + case op_closepath: + FT_TRACE4(( " closepath" )); + + /* if there is no path, `closepath' is a no-op */ + if ( builder->parse_state == T1_Parse_Have_Path || + builder->parse_state == T1_Parse_Have_Moveto ) + t1_builder_close_contour( builder ); + + builder->parse_state = T1_Parse_Have_Width; + break; + + case op_hlineto: + FT_TRACE4(( " hlineto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + goto Add_Line; + + case op_hmoveto: + FT_TRACE4(( " hmoveto" )); + + x += top[0]; + if ( !decoder->flex_state ) + { + if ( builder->parse_state == T1_Parse_Start ) + goto Syntax_Error; + builder->parse_state = T1_Parse_Have_Moveto; + } + break; + + case op_hvcurveto: + FT_TRACE4(( " hvcurveto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 3 ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + t1_builder_add_point( builder, x, y, 0 ); + x += top[1]; + y += top[2]; + t1_builder_add_point( builder, x, y, 0 ); + y += top[3]; + t1_builder_add_point( builder, x, y, 1 ); + break; + + case op_rlineto: + FT_TRACE4(( " rlineto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + y += top[1]; + + Add_Line: + if ( ( error = t1_builder_add_point1( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + break; + + case op_rmoveto: + FT_TRACE4(( " rmoveto" )); + + x += top[0]; + y += top[1]; + if ( !decoder->flex_state ) + { + if ( builder->parse_state == T1_Parse_Start ) + goto Syntax_Error; + builder->parse_state = T1_Parse_Have_Moveto; + } + break; + + case op_rrcurveto: + FT_TRACE4(( " rrcurveto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 3 ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + y += top[1]; + t1_builder_add_point( builder, x, y, 0 ); + + x += top[2]; + y += top[3]; + t1_builder_add_point( builder, x, y, 0 ); + + x += top[4]; + y += top[5]; + t1_builder_add_point( builder, x, y, 1 ); + break; + + case op_vhcurveto: + FT_TRACE4(( " vhcurveto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 3 ) ) + != PSaux_Err_Ok ) + goto Fail; + + y += top[0]; + t1_builder_add_point( builder, x, y, 0 ); + x += top[1]; + y += top[2]; + t1_builder_add_point( builder, x, y, 0 ); + x += top[3]; + t1_builder_add_point( builder, x, y, 1 ); + break; + + case op_vlineto: + FT_TRACE4(( " vlineto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + + y += top[0]; + goto Add_Line; + + case op_vmoveto: + FT_TRACE4(( " vmoveto" )); + + y += top[0]; + if ( !decoder->flex_state ) + { + if ( builder->parse_state == T1_Parse_Start ) + goto Syntax_Error; + builder->parse_state = T1_Parse_Have_Moveto; + } + break; + + case op_div: + FT_TRACE4(( " div" )); + + /* if `large_int' is set, we divide unscaled numbers; */ + /* otherwise, we divide numbers in 16.16 format -- */ + /* in both cases, it is the same operation */ + *top = FT_DivFix( top[0], top[1] ); + ++top; + + large_int = FALSE; + break; + + case op_callsubr: + { + FT_Int idx; + + + FT_TRACE4(( " callsubr" )); + + idx = Fix2Int( top[0] ); + if ( idx < 0 || idx >= (FT_Int)decoder->num_subrs ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid subrs index\n" )); + goto Syntax_Error; + } + + if ( zone - decoder->zones >= T1_MAX_SUBRS_CALLS ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " too many nested subrs\n" )); + goto Syntax_Error; + } + + zone->cursor = ip; /* save current instruction pointer */ + + zone++; + + /* The Type 1 driver stores subroutines without the seed bytes. */ + /* The CID driver stores subroutines with seed bytes. This */ + /* case is taken care of when decoder->subrs_len == 0. */ + zone->base = decoder->subrs[idx]; + + if ( decoder->subrs_len ) + zone->limit = zone->base + decoder->subrs_len[idx]; + else + { + /* We are using subroutines from a CID font. We must adjust */ + /* for the seed bytes. */ + zone->base += ( decoder->lenIV >= 0 ? decoder->lenIV : 0 ); + zone->limit = decoder->subrs[idx + 1]; + } + + zone->cursor = zone->base; + + if ( !zone->base ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invoking empty subrs\n" )); + goto Syntax_Error; + } + + decoder->zone = zone; + ip = zone->base; + limit = zone->limit; + break; + } + + case op_pop: + FT_TRACE4(( " pop" )); + + if ( known_othersubr_result_cnt > 0 ) + { + known_othersubr_result_cnt--; + /* ignore, we pushed the operands ourselves */ + break; + } + + if ( unknown_othersubr_result_cnt == 0 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " no more operands for othersubr\n" )); + goto Syntax_Error; + } + + unknown_othersubr_result_cnt--; + top++; /* `push' the operand to callothersubr onto the stack */ + break; + + case op_return: + FT_TRACE4(( " return" )); + + if ( zone <= decoder->zones ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected return\n" )); + goto Syntax_Error; + } + + zone--; + ip = zone->cursor; + limit = zone->limit; + decoder->zone = zone; + break; + + case op_dotsection: + FT_TRACE4(( " dotsection" )); + + break; + + case op_hstem: + FT_TRACE4(( " hstem" )); + + /* record horizontal hint */ + if ( hinter ) + { + /* top[0] += builder->left_bearing.y; */ + hinter->stem( hinter->hints, 1, top ); + } + break; + + case op_hstem3: + FT_TRACE4(( " hstem3" )); + + /* record horizontal counter-controlled hints */ + if ( hinter ) + hinter->stem3( hinter->hints, 1, top ); + break; + + case op_vstem: + FT_TRACE4(( " vstem" )); + + /* record vertical hint */ + if ( hinter ) + { + top[0] += orig_x; + hinter->stem( hinter->hints, 0, top ); + } + break; + + case op_vstem3: + FT_TRACE4(( " vstem3" )); + + /* record vertical counter-controlled hints */ + if ( hinter ) + { + FT_Pos dx = orig_x; + + + top[0] += dx; + top[2] += dx; + top[4] += dx; + hinter->stem3( hinter->hints, 0, top ); + } + break; + + case op_setcurrentpoint: + FT_TRACE4(( " setcurrentpoint" )); + + /* From the T1 specification, section 6.4: */ + /* */ + /* The setcurrentpoint command is used only in */ + /* conjunction with results from OtherSubrs procedures. */ + + /* known_othersubr_result_cnt != 0 is already handled */ + /* above. */ + + /* Note, however, that both Ghostscript and Adobe */ + /* Distiller handle this situation by silently ignoring */ + /* the inappropriate `setcurrentpoint' instruction. So */ + /* we do the same. */ +#if 0 + + if ( decoder->flex_state != 1 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected `setcurrentpoint'\n" )); + goto Syntax_Error; + } + else + ... +#endif + + x = top[0]; + y = top[1]; + decoder->flex_state = 0; + break; + + case op_unknown15: + FT_TRACE4(( " opcode_15" )); + /* nothing to do except to pop the two arguments */ + break; + + default: + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unhandled opcode %d\n", op )); + goto Syntax_Error; + } + + /* XXX Operators usually clear the operand stack; */ + /* only div, callsubr, callothersubr, pop, and */ + /* return are different. */ + /* In practice it doesn't matter (?). */ + + decoder->top = top; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE4(( "\n" )); + bol = TRUE; +#endif + + } /* general operator processing */ + + } /* while ip < limit */ + + FT_TRACE4(( "..end..\n\n" )); + + Fail: + return error; + + Syntax_Error: + return PSaux_Err_Syntax_Error; + + Stack_Underflow: + return PSaux_Err_Stack_Underflow; + } + + + /* parse a single Type 1 glyph */ + FT_LOCAL_DEF( FT_Error ) + t1_decoder_parse_glyph( T1_Decoder decoder, + FT_UInt glyph ) + { + return decoder->parse_callback( decoder, glyph ); + } + + + /* initialize T1 decoder */ + FT_LOCAL_DEF( FT_Error ) + t1_decoder_init( T1_Decoder decoder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Byte** glyph_names, + PS_Blend blend, + FT_Bool hinting, + FT_Render_Mode hint_mode, + T1_Decoder_Callback parse_callback ) + { + FT_MEM_ZERO( decoder, sizeof ( *decoder ) ); + + /* retrieve PSNames interface from list of current modules */ + { + FT_Service_PsCMaps psnames = 0; + + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + if ( !psnames ) + { + FT_ERROR(( "t1_decoder_init:" + " the `psnames' module is not available\n" )); + return PSaux_Err_Unimplemented_Feature; + } + + decoder->psnames = psnames; + } + + t1_builder_init( &decoder->builder, face, size, slot, hinting ); + + /* decoder->buildchar and decoder->len_buildchar have to be */ + /* initialized by the caller since we cannot know the length */ + /* of the BuildCharArray */ + + decoder->num_glyphs = (FT_UInt)face->num_glyphs; + decoder->glyph_names = glyph_names; + decoder->hint_mode = hint_mode; + decoder->blend = blend; + decoder->parse_callback = parse_callback; + + decoder->funcs = t1_decoder_funcs; + + return PSaux_Err_Ok; + } + + + /* finalize T1 decoder */ + FT_LOCAL_DEF( void ) + t1_decoder_done( T1_Decoder decoder ) + { + t1_builder_done( &decoder->builder ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psaux/t1decode.h b/uppsrc/plugin/FT_fontsys/src/psaux/t1decode.h new file mode 100644 index 000000000..c6dfa7ab0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psaux/t1decode.h @@ -0,0 +1,64 @@ +/***************************************************************************/ +/* */ +/* t1decode.h */ +/* */ +/* PostScript Type 1 decoding routines (specification). */ +/* */ +/* Copyright 2000-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1DECODE_H__ +#define __T1DECODE_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + + FT_CALLBACK_TABLE + const T1_Decoder_FuncsRec t1_decoder_funcs; + + + FT_LOCAL( FT_Error ) + t1_decoder_parse_glyph( T1_Decoder decoder, + FT_UInt glyph_index ); + + FT_LOCAL( FT_Error ) + t1_decoder_parse_charstrings( T1_Decoder decoder, + FT_Byte* base, + FT_UInt len ); + + FT_LOCAL( FT_Error ) + t1_decoder_init( T1_Decoder decoder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Byte** glyph_names, + PS_Blend blend, + FT_Bool hinting, + FT_Render_Mode hint_mode, + T1_Decoder_Callback parse_glyph ); + + FT_LOCAL( void ) + t1_decoder_done( T1_Decoder decoder ); + + +FT_END_HEADER + +#endif /* __T1DECODE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.c b/uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.c new file mode 100644 index 000000000..eb8d011b4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.c @@ -0,0 +1,2306 @@ +/***************************************************************************/ +/* */ +/* pshalgo.c */ +/* */ +/* PostScript hinting algorithm (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 */ +/* by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include "pshalgo.h" + +#include "pshnterr.h" + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pshalgo2 + + +#ifdef DEBUG_HINTER + PSH_Hint_Table ps_debug_hint_table = 0; + PSH_HintFunc ps_debug_hint_func = 0; + PSH_Glyph ps_debug_glyph = 0; +#endif + + +#define COMPUTE_INFLEXS /* compute inflection points to optimize `S' */ + /* and similar glyphs */ +#define STRONGER /* slightly increase the contrast of smooth */ + /* hinting */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BASIC HINTS RECORDINGS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* return true if two stem hints overlap */ + static FT_Int + psh_hint_overlap( PSH_Hint hint1, + PSH_Hint hint2 ) + { + return hint1->org_pos + hint1->org_len >= hint2->org_pos && + hint2->org_pos + hint2->org_len >= hint1->org_pos; + } + + + /* destroy hints table */ + static void + psh_hint_table_done( PSH_Hint_Table table, + FT_Memory memory ) + { + FT_FREE( table->zones ); + table->num_zones = 0; + table->zone = 0; + + FT_FREE( table->sort ); + FT_FREE( table->hints ); + table->num_hints = 0; + table->max_hints = 0; + table->sort_global = 0; + } + + + /* deactivate all hints in a table */ + static void + psh_hint_table_deactivate( PSH_Hint_Table table ) + { + FT_UInt count = table->max_hints; + PSH_Hint hint = table->hints; + + + for ( ; count > 0; count--, hint++ ) + { + psh_hint_deactivate( hint ); + hint->order = -1; + } + } + + + /* internal function to record a new hint */ + static void + psh_hint_table_record( PSH_Hint_Table table, + FT_UInt idx ) + { + PSH_Hint hint = table->hints + idx; + + + if ( idx >= table->max_hints ) + { + FT_TRACE0(( "psh_hint_table_record: invalid hint index %d\n", idx )); + return; + } + + /* ignore active hints */ + if ( psh_hint_is_active( hint ) ) + return; + + psh_hint_activate( hint ); + + /* now scan the current active hint set to check */ + /* whether `hint' overlaps with another hint */ + { + PSH_Hint* sorted = table->sort_global; + FT_UInt count = table->num_hints; + PSH_Hint hint2; + + + hint->parent = 0; + for ( ; count > 0; count--, sorted++ ) + { + hint2 = sorted[0]; + + if ( psh_hint_overlap( hint, hint2 ) ) + { + hint->parent = hint2; + break; + } + } + } + + if ( table->num_hints < table->max_hints ) + table->sort_global[table->num_hints++] = hint; + else + FT_TRACE0(( "psh_hint_table_record: too many sorted hints! BUG!\n" )); + } + + + static void + psh_hint_table_record_mask( PSH_Hint_Table table, + PS_Mask hint_mask ) + { + FT_Int mask = 0, val = 0; + FT_Byte* cursor = hint_mask->bytes; + FT_UInt idx, limit; + + + limit = hint_mask->num_bits; + + for ( idx = 0; idx < limit; idx++ ) + { + if ( mask == 0 ) + { + val = *cursor++; + mask = 0x80; + } + + if ( val & mask ) + psh_hint_table_record( table, idx ); + + mask >>= 1; + } + } + + + /* create hints table */ + static FT_Error + psh_hint_table_init( PSH_Hint_Table table, + PS_Hint_Table hints, + PS_Mask_Table hint_masks, + PS_Mask_Table counter_masks, + FT_Memory memory ) + { + FT_UInt count; + FT_Error error; + + FT_UNUSED( counter_masks ); + + + count = hints->num_hints; + + /* allocate our tables */ + if ( FT_NEW_ARRAY( table->sort, 2 * count ) || + FT_NEW_ARRAY( table->hints, count ) || + FT_NEW_ARRAY( table->zones, 2 * count + 1 ) ) + goto Exit; + + table->max_hints = count; + table->sort_global = table->sort + count; + table->num_hints = 0; + table->num_zones = 0; + table->zone = 0; + + /* initialize the `table->hints' array */ + { + PSH_Hint write = table->hints; + PS_Hint read = hints->hints; + + + for ( ; count > 0; count--, write++, read++ ) + { + write->org_pos = read->pos; + write->org_len = read->len; + write->flags = read->flags; + } + } + + /* we now need to determine the initial `parent' stems; first */ + /* activate the hints that are given by the initial hint masks */ + if ( hint_masks ) + { + PS_Mask mask = hint_masks->masks; + + + count = hint_masks->num_masks; + table->hint_masks = hint_masks; + + for ( ; count > 0; count--, mask++ ) + psh_hint_table_record_mask( table, mask ); + } + + /* finally, do a linear parse in case some hints were left alone */ + if ( table->num_hints != table->max_hints ) + { + FT_UInt idx; + + + FT_TRACE0(( "psh_hint_table_init: missing/incorrect hint masks\n" )); + + count = table->max_hints; + for ( idx = 0; idx < count; idx++ ) + psh_hint_table_record( table, idx ); + } + + Exit: + return error; + } + + + static void + psh_hint_table_activate_mask( PSH_Hint_Table table, + PS_Mask hint_mask ) + { + FT_Int mask = 0, val = 0; + FT_Byte* cursor = hint_mask->bytes; + FT_UInt idx, limit, count; + + + limit = hint_mask->num_bits; + count = 0; + + psh_hint_table_deactivate( table ); + + for ( idx = 0; idx < limit; idx++ ) + { + if ( mask == 0 ) + { + val = *cursor++; + mask = 0x80; + } + + if ( val & mask ) + { + PSH_Hint hint = &table->hints[idx]; + + + if ( !psh_hint_is_active( hint ) ) + { + FT_UInt count2; + +#if 0 + PSH_Hint* sort = table->sort; + PSH_Hint hint2; + + + for ( count2 = count; count2 > 0; count2--, sort++ ) + { + hint2 = sort[0]; + if ( psh_hint_overlap( hint, hint2 ) ) + FT_TRACE0(( "psh_hint_table_activate_mask:" + " found overlapping hints\n" )) + } +#else + count2 = 0; +#endif + + if ( count2 == 0 ) + { + psh_hint_activate( hint ); + if ( count < table->max_hints ) + table->sort[count++] = hint; + else + FT_TRACE0(( "psh_hint_tableactivate_mask:" + " too many active hints\n" )); + } + } + } + + mask >>= 1; + } + table->num_hints = count; + + /* now, sort the hints; they are guaranteed to not overlap */ + /* so we can compare their "org_pos" field directly */ + { + FT_Int i1, i2; + PSH_Hint hint1, hint2; + PSH_Hint* sort = table->sort; + + + /* a simple bubble sort will do, since in 99% of cases, the hints */ + /* will be already sorted -- and the sort will be linear */ + for ( i1 = 1; i1 < (FT_Int)count; i1++ ) + { + hint1 = sort[i1]; + for ( i2 = i1 - 1; i2 >= 0; i2-- ) + { + hint2 = sort[i2]; + + if ( hint2->org_pos < hint1->org_pos ) + break; + + sort[i2 + 1] = hint2; + sort[i2] = hint1; + } + } + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** HINTS GRID-FITTING AND OPTIMIZATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#if 1 + static FT_Pos + psh_dimension_quantize_len( PSH_Dimension dim, + FT_Pos len, + FT_Bool do_snapping ) + { + if ( len <= 64 ) + len = 64; + else + { + FT_Pos delta = len - dim->stdw.widths[0].cur; + + + if ( delta < 0 ) + delta = -delta; + + if ( delta < 40 ) + { + len = dim->stdw.widths[0].cur; + if ( len < 48 ) + len = 48; + } + + if ( len < 3 * 64 ) + { + delta = ( len & 63 ); + len &= -64; + + if ( delta < 10 ) + len += delta; + + else if ( delta < 32 ) + len += 10; + + else if ( delta < 54 ) + len += 54; + + else + len += delta; + } + else + len = FT_PIX_ROUND( len ); + } + + if ( do_snapping ) + len = FT_PIX_ROUND( len ); + + return len; + } +#endif /* 0 */ + + +#ifdef DEBUG_HINTER + + static void + ps_simple_scale( PSH_Hint_Table table, + FT_Fixed scale, + FT_Fixed delta, + FT_Int dimension ) + { + PSH_Hint hint; + FT_UInt count; + + + for ( count = 0; count < table->max_hints; count++ ) + { + hint = table->hints + count; + + hint->cur_pos = FT_MulFix( hint->org_pos, scale ) + delta; + hint->cur_len = FT_MulFix( hint->org_len, scale ); + + if ( ps_debug_hint_func ) + ps_debug_hint_func( hint, dimension ); + } + } + +#endif /* DEBUG_HINTER */ + + + static FT_Fixed + psh_hint_snap_stem_side_delta( FT_Fixed pos, + FT_Fixed len ) + { + FT_Fixed delta1 = FT_PIX_ROUND( pos ) - pos; + FT_Fixed delta2 = FT_PIX_ROUND( pos + len ) - pos - len; + + + if ( FT_ABS( delta1 ) <= FT_ABS( delta2 ) ) + return delta1; + else + return delta2; + } + + + static void + psh_hint_align( PSH_Hint hint, + PSH_Globals globals, + FT_Int dimension, + PSH_Glyph glyph ) + { + PSH_Dimension dim = &globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + + + if ( !psh_hint_is_fitted( hint ) ) + { + FT_Pos pos = FT_MulFix( hint->org_pos, scale ) + delta; + FT_Pos len = FT_MulFix( hint->org_len, scale ); + + FT_Int do_snapping; + FT_Pos fit_len; + PSH_AlignmentRec align; + + + /* ignore stem alignments when requested through the hint flags */ + if ( ( dimension == 0 && !glyph->do_horz_hints ) || + ( dimension == 1 && !glyph->do_vert_hints ) ) + { + hint->cur_pos = pos; + hint->cur_len = len; + + psh_hint_set_fitted( hint ); + return; + } + + /* perform stem snapping when requested - this is necessary + * for monochrome and LCD hinting modes only + */ + do_snapping = ( dimension == 0 && glyph->do_horz_snapping ) || + ( dimension == 1 && glyph->do_vert_snapping ); + + hint->cur_len = fit_len = len; + + /* check blue zones for horizontal stems */ + align.align = PSH_BLUE_ALIGN_NONE; + align.align_bot = align.align_top = 0; + + if ( dimension == 1 ) + psh_blues_snap_stem( &globals->blues, + hint->org_pos + hint->org_len, + hint->org_pos, + &align ); + + switch ( align.align ) + { + case PSH_BLUE_ALIGN_TOP: + /* the top of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_top - fit_len; + break; + + case PSH_BLUE_ALIGN_BOT: + /* the bottom of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_bot; + break; + + case PSH_BLUE_ALIGN_TOP | PSH_BLUE_ALIGN_BOT: + /* both edges of the stem are aligned against blue zones */ + hint->cur_pos = align.align_bot; + hint->cur_len = align.align_top - align.align_bot; + break; + + default: + { + PSH_Hint parent = hint->parent; + + + if ( parent ) + { + FT_Pos par_org_center, par_cur_center; + FT_Pos cur_org_center, cur_delta; + + + /* ensure that parent is already fitted */ + if ( !psh_hint_is_fitted( parent ) ) + psh_hint_align( parent, globals, dimension, glyph ); + + /* keep original relation between hints, this is, use the */ + /* scaled distance between the centers of the hints to */ + /* compute the new position */ + par_org_center = parent->org_pos + ( parent->org_len >> 1 ); + par_cur_center = parent->cur_pos + ( parent->cur_len >> 1 ); + cur_org_center = hint->org_pos + ( hint->org_len >> 1 ); + + cur_delta = FT_MulFix( cur_org_center - par_org_center, scale ); + pos = par_cur_center + cur_delta - ( len >> 1 ); + } + + hint->cur_pos = pos; + hint->cur_len = fit_len; + + /* Stem adjustment tries to snap stem widths to standard + * ones. This is important to prevent unpleasant rounding + * artefacts. + */ + if ( glyph->do_stem_adjust ) + { + if ( len <= 64 ) + { + /* the stem is less than one pixel; we will center it + * around the nearest pixel center + */ + if ( len >= 32 ) + { + /* This is a special case where we also widen the stem + * and align it to the pixel grid. + * + * stem_center = pos + (len/2) + * nearest_pixel_center = FT_ROUND(stem_center-32)+32 + * new_pos = nearest_pixel_center-32 + * = FT_ROUND(stem_center-32) + * = FT_FLOOR(stem_center-32+32) + * = FT_FLOOR(stem_center) + * new_len = 64 + */ + pos = FT_PIX_FLOOR( pos + ( len >> 1 ) ); + len = 64; + } + else if ( len > 0 ) + { + /* This is a very small stem; we simply align it to the + * pixel grid, trying to find the minimal displacement. + * + * left = pos + * right = pos + len + * left_nearest_edge = ROUND(pos) + * right_nearest_edge = ROUND(right) + * + * if ( ABS(left_nearest_edge - left) <= + * ABS(right_nearest_edge - right) ) + * new_pos = left + * else + * new_pos = right + */ + FT_Pos left_nearest = FT_PIX_ROUND( pos ); + FT_Pos right_nearest = FT_PIX_ROUND( pos + len ); + FT_Pos left_disp = left_nearest - pos; + FT_Pos right_disp = right_nearest - ( pos + len ); + + + if ( left_disp < 0 ) + left_disp = -left_disp; + if ( right_disp < 0 ) + right_disp = -right_disp; + if ( left_disp <= right_disp ) + pos = left_nearest; + else + pos = right_nearest; + } + else + { + /* this is a ghost stem; we simply round it */ + pos = FT_PIX_ROUND( pos ); + } + } + else + { + len = psh_dimension_quantize_len( dim, len, 0 ); + } + } + + /* now that we have a good hinted stem width, try to position */ + /* the stem along a pixel grid integer coordinate */ + hint->cur_pos = pos + psh_hint_snap_stem_side_delta( pos, len ); + hint->cur_len = len; + } + } + + if ( do_snapping ) + { + pos = hint->cur_pos; + len = hint->cur_len; + + if ( len < 64 ) + len = 64; + else + len = FT_PIX_ROUND( len ); + + switch ( align.align ) + { + case PSH_BLUE_ALIGN_TOP: + hint->cur_pos = align.align_top - len; + hint->cur_len = len; + break; + + case PSH_BLUE_ALIGN_BOT: + hint->cur_len = len; + break; + + case PSH_BLUE_ALIGN_BOT | PSH_BLUE_ALIGN_TOP: + /* don't touch */ + break; + + + default: + hint->cur_len = len; + if ( len & 64 ) + pos = FT_PIX_FLOOR( pos + ( len >> 1 ) ) + 32; + else + pos = FT_PIX_ROUND( pos + ( len >> 1 ) ); + + hint->cur_pos = pos - ( len >> 1 ); + hint->cur_len = len; + } + } + + psh_hint_set_fitted( hint ); + +#ifdef DEBUG_HINTER + if ( ps_debug_hint_func ) + ps_debug_hint_func( hint, dimension ); +#endif + } + } + + +#if 0 /* not used for now, experimental */ + + /* + * A variant to perform "light" hinting (i.e. FT_RENDER_MODE_LIGHT) + * of stems + */ + static void + psh_hint_align_light( PSH_Hint hint, + PSH_Globals globals, + FT_Int dimension, + PSH_Glyph glyph ) + { + PSH_Dimension dim = &globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + + + if ( !psh_hint_is_fitted( hint ) ) + { + FT_Pos pos = FT_MulFix( hint->org_pos, scale ) + delta; + FT_Pos len = FT_MulFix( hint->org_len, scale ); + + FT_Pos fit_len; + + PSH_AlignmentRec align; + + + /* ignore stem alignments when requested through the hint flags */ + if ( ( dimension == 0 && !glyph->do_horz_hints ) || + ( dimension == 1 && !glyph->do_vert_hints ) ) + { + hint->cur_pos = pos; + hint->cur_len = len; + + psh_hint_set_fitted( hint ); + return; + } + + fit_len = len; + + hint->cur_len = fit_len; + + /* check blue zones for horizontal stems */ + align.align = PSH_BLUE_ALIGN_NONE; + align.align_bot = align.align_top = 0; + + if ( dimension == 1 ) + psh_blues_snap_stem( &globals->blues, + hint->org_pos + hint->org_len, + hint->org_pos, + &align ); + + switch ( align.align ) + { + case PSH_BLUE_ALIGN_TOP: + /* the top of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_top - fit_len; + break; + + case PSH_BLUE_ALIGN_BOT: + /* the bottom of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_bot; + break; + + case PSH_BLUE_ALIGN_TOP | PSH_BLUE_ALIGN_BOT: + /* both edges of the stem are aligned against blue zones */ + hint->cur_pos = align.align_bot; + hint->cur_len = align.align_top - align.align_bot; + break; + + default: + { + PSH_Hint parent = hint->parent; + + + if ( parent ) + { + FT_Pos par_org_center, par_cur_center; + FT_Pos cur_org_center, cur_delta; + + + /* ensure that parent is already fitted */ + if ( !psh_hint_is_fitted( parent ) ) + psh_hint_align_light( parent, globals, dimension, glyph ); + + par_org_center = parent->org_pos + ( parent->org_len / 2 ); + par_cur_center = parent->cur_pos + ( parent->cur_len / 2 ); + cur_org_center = hint->org_pos + ( hint->org_len / 2 ); + + cur_delta = FT_MulFix( cur_org_center - par_org_center, scale ); + pos = par_cur_center + cur_delta - ( len >> 1 ); + } + + /* Stems less than one pixel wide are easy -- we want to + * make them as dark as possible, so they must fall within + * one pixel. If the stem is split between two pixels + * then snap the edge that is nearer to the pixel boundary + * to the pixel boundary. + */ + if ( len <= 64 ) + { + if ( ( pos + len + 63 ) / 64 != pos / 64 + 1 ) + pos += psh_hint_snap_stem_side_delta ( pos, len ); + } + + /* Position stems other to minimize the amount of mid-grays. + * There are, in general, two positions that do this, + * illustrated as A) and B) below. + * + * + + + + + * + * A) |--------------------------------| + * B) |--------------------------------| + * C) |--------------------------------| + * + * Position A) (split the excess stem equally) should be better + * for stems of width N + f where f < 0.5. + * + * Position B) (split the deficiency equally) should be better + * for stems of width N + f where f > 0.5. + * + * It turns out though that minimizing the total number of lit + * pixels is also important, so position C), with one edge + * aligned with a pixel boundary is actually preferable + * to A). There are also more possibile positions for C) than + * for A) or B), so it involves less distortion of the overall + * character shape. + */ + else /* len > 64 */ + { + FT_Fixed frac_len = len & 63; + FT_Fixed center = pos + ( len >> 1 ); + FT_Fixed delta_a, delta_b; + + + if ( ( len / 64 ) & 1 ) + { + delta_a = FT_PIX_FLOOR( center ) + 32 - center; + delta_b = FT_PIX_ROUND( center ) - center; + } + else + { + delta_a = FT_PIX_ROUND( center ) - center; + delta_b = FT_PIX_FLOOR( center ) + 32 - center; + } + + /* We choose between B) and C) above based on the amount + * of fractinal stem width; for small amounts, choose + * C) always, for large amounts, B) always, and inbetween, + * pick whichever one involves less stem movement. + */ + if ( frac_len < 32 ) + { + pos += psh_hint_snap_stem_side_delta ( pos, len ); + } + else if ( frac_len < 48 ) + { + FT_Fixed side_delta = psh_hint_snap_stem_side_delta ( pos, + len ); + + if ( FT_ABS( side_delta ) < FT_ABS( delta_b ) ) + pos += side_delta; + else + pos += delta_b; + } + else + { + pos += delta_b; + } + } + + hint->cur_pos = pos; + } + } /* switch */ + + psh_hint_set_fitted( hint ); + +#ifdef DEBUG_HINTER + if ( ps_debug_hint_func ) + ps_debug_hint_func( hint, dimension ); +#endif + } + } + +#endif /* 0 */ + + + static void + psh_hint_table_align_hints( PSH_Hint_Table table, + PSH_Globals globals, + FT_Int dimension, + PSH_Glyph glyph ) + { + PSH_Hint hint; + FT_UInt count; + +#ifdef DEBUG_HINTER + + PSH_Dimension dim = &globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + + + if ( ps_debug_no_vert_hints && dimension == 0 ) + { + ps_simple_scale( table, scale, delta, dimension ); + return; + } + + if ( ps_debug_no_horz_hints && dimension == 1 ) + { + ps_simple_scale( table, scale, delta, dimension ); + return; + } + +#endif /* DEBUG_HINTER*/ + + hint = table->hints; + count = table->max_hints; + + for ( ; count > 0; count--, hint++ ) + psh_hint_align( hint, globals, dimension, glyph ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** POINTS INTERPOLATION ROUTINES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define PSH_ZONE_MIN -3200000L +#define PSH_ZONE_MAX +3200000L + +#define xxDEBUG_ZONES + + +#ifdef DEBUG_ZONES + +#include FT_CONFIG_STANDARD_LIBRARY_H + + static void + psh_print_zone( PSH_Zone zone ) + { + printf( "zone [scale,delta,min,max] = [%.3f,%.3f,%d,%d]\n", + zone->scale / 65536.0, + zone->delta / 64.0, + zone->min, + zone->max ); + } + +#else + +#define psh_print_zone( x ) do { } while ( 0 ) + +#endif /* DEBUG_ZONES */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** HINTER GLYPH MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#if 1 + +#define psh_corner_is_flat ft_corner_is_flat +#define psh_corner_orientation ft_corner_orientation + +#else + + FT_LOCAL_DEF( FT_Int ) + psh_corner_is_flat( FT_Pos x_in, + FT_Pos y_in, + FT_Pos x_out, + FT_Pos y_out ) + { + FT_Pos ax = x_in; + FT_Pos ay = y_in; + + FT_Pos d_in, d_out, d_corner; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + d_in = ax + ay; + + ax = x_out; + if ( ax < 0 ) + ax = -ax; + ay = y_out; + if ( ay < 0 ) + ay = -ay; + d_out = ax + ay; + + ax = x_out + x_in; + if ( ax < 0 ) + ax = -ax; + ay = y_out + y_in; + if ( ay < 0 ) + ay = -ay; + d_corner = ax + ay; + + return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); + } + + static FT_Int + psh_corner_orientation( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ) + { + FT_Int result; + + + /* deal with the trivial cases quickly */ + if ( in_y == 0 ) + { + if ( in_x >= 0 ) + result = out_y; + else + result = -out_y; + } + else if ( in_x == 0 ) + { + if ( in_y >= 0 ) + result = -out_x; + else + result = out_x; + } + else if ( out_y == 0 ) + { + if ( out_x >= 0 ) + result = in_y; + else + result = -in_y; + } + else if ( out_x == 0 ) + { + if ( out_y >= 0 ) + result = -in_x; + else + result = in_x; + } + else /* general case */ + { + long long delta = (long long)in_x * out_y - (long long)in_y * out_x; + + if ( delta == 0 ) + result = 0; + else + result = 1 - 2 * ( delta < 0 ); + } + + return result; + } + +#endif /* !1 */ + + +#ifdef COMPUTE_INFLEXS + + /* compute all inflex points in a given glyph */ + static void + psh_glyph_compute_inflections( PSH_Glyph glyph ) + { + FT_UInt n; + + + for ( n = 0; n < glyph->num_contours; n++ ) + { + PSH_Point first, start, end, before, after; + FT_Pos in_x, in_y, out_x, out_y; + FT_Int orient_prev, orient_cur; + FT_Int finished = 0; + + + /* we need at least 4 points to create an inflection point */ + if ( glyph->contours[n].count < 4 ) + continue; + + /* compute first segment in contour */ + first = glyph->contours[n].start; + + start = end = first; + do + { + end = end->next; + if ( end == first ) + goto Skip; + + in_x = end->org_u - start->org_u; + in_y = end->org_v - start->org_v; + + } while ( in_x == 0 && in_y == 0 ); + + /* extend the segment start whenever possible */ + before = start; + do + { + do + { + start = before; + before = before->prev; + if ( before == first ) + goto Skip; + + out_x = start->org_u - before->org_u; + out_y = start->org_v - before->org_v; + + } while ( out_x == 0 && out_y == 0 ); + + orient_prev = psh_corner_orientation( in_x, in_y, out_x, out_y ); + + } while ( orient_prev == 0 ); + + first = start; + in_x = out_x; + in_y = out_y; + + /* now, process all segments in the contour */ + do + { + /* first, extend current segment's end whenever possible */ + after = end; + do + { + do + { + end = after; + after = after->next; + if ( after == first ) + finished = 1; + + out_x = after->org_u - end->org_u; + out_y = after->org_v - end->org_v; + + } while ( out_x == 0 && out_y == 0 ); + + orient_cur = psh_corner_orientation( in_x, in_y, out_x, out_y ); + + } while ( orient_cur == 0 ); + + if ( ( orient_cur ^ orient_prev ) < 0 ) + { + do + { + psh_point_set_inflex( start ); + start = start->next; + } + while ( start != end ); + + psh_point_set_inflex( start ); + } + + start = end; + end = after; + orient_prev = orient_cur; + in_x = out_x; + in_y = out_y; + + } while ( !finished ); + + Skip: + ; + } + } + +#endif /* COMPUTE_INFLEXS */ + + + static void + psh_glyph_done( PSH_Glyph glyph ) + { + FT_Memory memory = glyph->memory; + + + psh_hint_table_done( &glyph->hint_tables[1], memory ); + psh_hint_table_done( &glyph->hint_tables[0], memory ); + + FT_FREE( glyph->points ); + FT_FREE( glyph->contours ); + + glyph->num_points = 0; + glyph->num_contours = 0; + + glyph->memory = 0; + } + + + static int + psh_compute_dir( FT_Pos dx, + FT_Pos dy ) + { + FT_Pos ax, ay; + int result = PSH_DIR_NONE; + + + ax = ( dx >= 0 ) ? dx : -dx; + ay = ( dy >= 0 ) ? dy : -dy; + + if ( ay * 12 < ax ) + { + /* |dy| <<< |dx| means a near-horizontal segment */ + result = ( dx >= 0 ) ? PSH_DIR_RIGHT : PSH_DIR_LEFT; + } + else if ( ax * 12 < ay ) + { + /* |dx| <<< |dy| means a near-vertical segment */ + result = ( dy >= 0 ) ? PSH_DIR_UP : PSH_DIR_DOWN; + } + + return result; + } + + + /* load outline point coordinates into hinter glyph */ + static void + psh_glyph_load_points( PSH_Glyph glyph, + FT_Int dimension ) + { + FT_Vector* vec = glyph->outline->points; + PSH_Point point = glyph->points; + FT_UInt count = glyph->num_points; + + + for ( ; count > 0; count--, point++, vec++ ) + { + point->flags2 = 0; + point->hint = NULL; + if ( dimension == 0 ) + { + point->org_u = vec->x; + point->org_v = vec->y; + } + else + { + point->org_u = vec->y; + point->org_v = vec->x; + } + +#ifdef DEBUG_HINTER + point->org_x = vec->x; + point->org_y = vec->y; +#endif + + } + } + + + /* save hinted point coordinates back to outline */ + static void + psh_glyph_save_points( PSH_Glyph glyph, + FT_Int dimension ) + { + FT_UInt n; + PSH_Point point = glyph->points; + FT_Vector* vec = glyph->outline->points; + char* tags = glyph->outline->tags; + + + for ( n = 0; n < glyph->num_points; n++ ) + { + if ( dimension == 0 ) + vec[n].x = point->cur_u; + else + vec[n].y = point->cur_u; + + if ( psh_point_is_strong( point ) ) + tags[n] |= (char)( ( dimension == 0 ) ? 32 : 64 ); + +#ifdef DEBUG_HINTER + + if ( dimension == 0 ) + { + point->cur_x = point->cur_u; + point->flags_x = point->flags2 | point->flags; + } + else + { + point->cur_y = point->cur_u; + point->flags_y = point->flags2 | point->flags; + } + +#endif + + point++; + } + } + + + static FT_Error + psh_glyph_init( PSH_Glyph glyph, + FT_Outline* outline, + PS_Hints ps_hints, + PSH_Globals globals ) + { + FT_Error error; + FT_Memory memory; + + + /* clear all fields */ + FT_MEM_ZERO( glyph, sizeof ( *glyph ) ); + + memory = glyph->memory = globals->memory; + + /* allocate and setup points + contours arrays */ + if ( FT_NEW_ARRAY( glyph->points, outline->n_points ) || + FT_NEW_ARRAY( glyph->contours, outline->n_contours ) ) + goto Exit; + + glyph->num_points = outline->n_points; + glyph->num_contours = outline->n_contours; + + { + FT_UInt first = 0, next, n; + PSH_Point points = glyph->points; + PSH_Contour contour = glyph->contours; + + + for ( n = 0; n < glyph->num_contours; n++ ) + { + FT_Int count; + PSH_Point point; + + + next = outline->contours[n] + 1; + count = next - first; + + contour->start = points + first; + contour->count = (FT_UInt)count; + + if ( count > 0 ) + { + point = points + first; + + point->prev = points + next - 1; + point->contour = contour; + + for ( ; count > 1; count-- ) + { + point[0].next = point + 1; + point[1].prev = point; + point++; + point->contour = contour; + } + point->next = points + first; + } + + contour++; + first = next; + } + } + + { + PSH_Point points = glyph->points; + PSH_Point point = points; + FT_Vector* vec = outline->points; + FT_UInt n; + + + for ( n = 0; n < glyph->num_points; n++, point++ ) + { + FT_Int n_prev = (FT_Int)( point->prev - points ); + FT_Int n_next = (FT_Int)( point->next - points ); + FT_Pos dxi, dyi, dxo, dyo; + + + if ( !( outline->tags[n] & FT_CURVE_TAG_ON ) ) + point->flags = PSH_POINT_OFF; + + dxi = vec[n].x - vec[n_prev].x; + dyi = vec[n].y - vec[n_prev].y; + + point->dir_in = (FT_Char)psh_compute_dir( dxi, dyi ); + + dxo = vec[n_next].x - vec[n].x; + dyo = vec[n_next].y - vec[n].y; + + point->dir_out = (FT_Char)psh_compute_dir( dxo, dyo ); + + /* detect smooth points */ + if ( point->flags & PSH_POINT_OFF ) + point->flags |= PSH_POINT_SMOOTH; + + else if ( point->dir_in == point->dir_out ) + { + if ( point->dir_out != PSH_DIR_NONE || + psh_corner_is_flat( dxi, dyi, dxo, dyo ) ) + point->flags |= PSH_POINT_SMOOTH; + } + } + } + + glyph->outline = outline; + glyph->globals = globals; + +#ifdef COMPUTE_INFLEXS + psh_glyph_load_points( glyph, 0 ); + psh_glyph_compute_inflections( glyph ); +#endif /* COMPUTE_INFLEXS */ + + /* now deal with hints tables */ + error = psh_hint_table_init( &glyph->hint_tables [0], + &ps_hints->dimension[0].hints, + &ps_hints->dimension[0].masks, + &ps_hints->dimension[0].counters, + memory ); + if ( error ) + goto Exit; + + error = psh_hint_table_init( &glyph->hint_tables [1], + &ps_hints->dimension[1].hints, + &ps_hints->dimension[1].masks, + &ps_hints->dimension[1].counters, + memory ); + if ( error ) + goto Exit; + + Exit: + return error; + } + + + /* compute all extrema in a glyph for a given dimension */ + static void + psh_glyph_compute_extrema( PSH_Glyph glyph ) + { + FT_UInt n; + + + /* first of all, compute all local extrema */ + for ( n = 0; n < glyph->num_contours; n++ ) + { + PSH_Point first = glyph->contours[n].start; + PSH_Point point, before, after; + + + if ( glyph->contours[n].count == 0 ) + continue; + + point = first; + before = point; + after = point; + + do + { + before = before->prev; + if ( before == first ) + goto Skip; + + } while ( before->org_u == point->org_u ); + + first = point = before->next; + + for (;;) + { + after = point; + do + { + after = after->next; + if ( after == first ) + goto Next; + + } while ( after->org_u == point->org_u ); + + if ( before->org_u < point->org_u ) + { + if ( after->org_u < point->org_u ) + { + /* local maximum */ + goto Extremum; + } + } + else /* before->org_u > point->org_u */ + { + if ( after->org_u > point->org_u ) + { + /* local minimum */ + Extremum: + do + { + psh_point_set_extremum( point ); + point = point->next; + + } while ( point != after ); + } + } + + before = after->prev; + point = after; + + } /* for */ + + Next: + ; + } + + /* for each extremum, determine its direction along the */ + /* orthogonal axis */ + for ( n = 0; n < glyph->num_points; n++ ) + { + PSH_Point point, before, after; + + + point = &glyph->points[n]; + before = point; + after = point; + + if ( psh_point_is_extremum( point ) ) + { + do + { + before = before->prev; + if ( before == point ) + goto Skip; + + } while ( before->org_v == point->org_v ); + + do + { + after = after->next; + if ( after == point ) + goto Skip; + + } while ( after->org_v == point->org_v ); + } + + if ( before->org_v < point->org_v && + after->org_v > point->org_v ) + { + psh_point_set_positive( point ); + } + else if ( before->org_v > point->org_v && + after->org_v < point->org_v ) + { + psh_point_set_negative( point ); + } + + Skip: + ; + } + } + + + /* major_dir is the direction for points on the bottom/left of the stem; */ + /* Points on the top/right of the stem will have a direction of */ + /* -major_dir. */ + + static void + psh_hint_table_find_strong_points( PSH_Hint_Table table, + PSH_Point point, + FT_UInt count, + FT_Int threshold, + FT_Int major_dir ) + { + PSH_Hint* sort = table->sort; + FT_UInt num_hints = table->num_hints; + + + for ( ; count > 0; count--, point++ ) + { + FT_Int point_dir = 0; + FT_Pos org_u = point->org_u; + + + if ( psh_point_is_strong( point ) ) + continue; + + if ( PSH_DIR_COMPARE( point->dir_in, major_dir ) ) + point_dir = point->dir_in; + + else if ( PSH_DIR_COMPARE( point->dir_out, major_dir ) ) + point_dir = point->dir_out; + + if ( point_dir ) + { + if ( point_dir == major_dir ) + { + FT_UInt nn; + + + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos; + + + if ( d < threshold && -d < threshold ) + { + psh_point_set_strong( point ); + point->flags2 |= PSH_POINT_EDGE_MIN; + point->hint = hint; + break; + } + } + } + else if ( point_dir == -major_dir ) + { + FT_UInt nn; + + + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos - hint->org_len; + + + if ( d < threshold && -d < threshold ) + { + psh_point_set_strong( point ); + point->flags2 |= PSH_POINT_EDGE_MAX; + point->hint = hint; + break; + } + } + } + } + +#if 1 + else if ( psh_point_is_extremum( point ) ) + { + /* treat extrema as special cases for stem edge alignment */ + FT_UInt nn, min_flag, max_flag; + + + if ( major_dir == PSH_DIR_HORIZONTAL ) + { + min_flag = PSH_POINT_POSITIVE; + max_flag = PSH_POINT_NEGATIVE; + } + else + { + min_flag = PSH_POINT_NEGATIVE; + max_flag = PSH_POINT_POSITIVE; + } + + if ( point->flags2 & min_flag ) + { + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos; + + + if ( d < threshold && -d < threshold ) + { + point->flags2 |= PSH_POINT_EDGE_MIN; + point->hint = hint; + psh_point_set_strong( point ); + break; + } + } + } + else if ( point->flags2 & max_flag ) + { + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos - hint->org_len; + + + if ( d < threshold && -d < threshold ) + { + point->flags2 |= PSH_POINT_EDGE_MAX; + point->hint = hint; + psh_point_set_strong( point ); + break; + } + } + } + + if ( point->hint == NULL ) + { + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + + + if ( org_u >= hint->org_pos && + org_u <= hint->org_pos + hint->org_len ) + { + point->hint = hint; + break; + } + } + } + } + +#endif /* 1 */ + } + } + + + /* the accepted shift for strong points in fractional pixels */ +#define PSH_STRONG_THRESHOLD 32 + + /* the maximum shift value in font units */ +#define PSH_STRONG_THRESHOLD_MAXIMUM 30 + + + /* find strong points in a glyph */ + static void + psh_glyph_find_strong_points( PSH_Glyph glyph, + FT_Int dimension ) + { + /* a point is `strong' if it is located on a stem edge and */ + /* has an `in' or `out' tangent parallel to the hint's direction */ + + PSH_Hint_Table table = &glyph->hint_tables[dimension]; + PS_Mask mask = table->hint_masks->masks; + FT_UInt num_masks = table->hint_masks->num_masks; + FT_UInt first = 0; + FT_Int major_dir = dimension == 0 ? PSH_DIR_VERTICAL + : PSH_DIR_HORIZONTAL; + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Int threshold; + + + threshold = (FT_Int)FT_DivFix( PSH_STRONG_THRESHOLD, scale ); + if ( threshold > PSH_STRONG_THRESHOLD_MAXIMUM ) + threshold = PSH_STRONG_THRESHOLD_MAXIMUM; + + /* process secondary hints to `selected' points */ + if ( num_masks > 1 && glyph->num_points > 0 ) + { + /* the `endchar' op can reduce the number of points */ + first = mask->end_point > glyph->num_points + ? glyph->num_points + : mask->end_point; + mask++; + for ( ; num_masks > 1; num_masks--, mask++ ) + { + FT_UInt next; + FT_Int count; + + + next = mask->end_point > glyph->num_points + ? glyph->num_points + : mask->end_point; + count = next - first; + if ( count > 0 ) + { + PSH_Point point = glyph->points + first; + + + psh_hint_table_activate_mask( table, mask ); + + psh_hint_table_find_strong_points( table, point, count, + threshold, major_dir ); + } + first = next; + } + } + + /* process primary hints for all points */ + if ( num_masks == 1 ) + { + FT_UInt count = glyph->num_points; + PSH_Point point = glyph->points; + + + psh_hint_table_activate_mask( table, table->hint_masks->masks ); + + psh_hint_table_find_strong_points( table, point, count, + threshold, major_dir ); + } + + /* now, certain points may have been attached to a hint and */ + /* not marked as strong; update their flags then */ + { + FT_UInt count = glyph->num_points; + PSH_Point point = glyph->points; + + + for ( ; count > 0; count--, point++ ) + if ( point->hint && !psh_point_is_strong( point ) ) + psh_point_set_strong( point ); + } + } + + + /* find points in a glyph which are in a blue zone and have `in' or */ + /* `out' tangents parallel to the horizontal axis */ + static void + psh_glyph_find_blue_points( PSH_Blues blues, + PSH_Glyph glyph ) + { + PSH_Blue_Table table; + PSH_Blue_Zone zone; + FT_UInt glyph_count = glyph->num_points; + FT_UInt blue_count; + PSH_Point point = glyph->points; + + + for ( ; glyph_count > 0; glyph_count--, point++ ) + { + FT_Pos y; + + + /* check tangents */ + if ( !PSH_DIR_COMPARE( point->dir_in, PSH_DIR_HORIZONTAL ) && + !PSH_DIR_COMPARE( point->dir_out, PSH_DIR_HORIZONTAL ) ) + continue; + + /* skip strong points */ + if ( psh_point_is_strong( point ) ) + continue; + + y = point->org_u; + + /* look up top zones */ + table = &blues->normal_top; + blue_count = table->count; + zone = table->zones; + + for ( ; blue_count > 0; blue_count--, zone++ ) + { + FT_Pos delta = y - zone->org_bottom; + + + if ( delta < -blues->blue_fuzz ) + break; + + if ( y <= zone->org_top + blues->blue_fuzz ) + if ( blues->no_overshoots || delta <= blues->blue_threshold ) + { + point->cur_u = zone->cur_bottom; + psh_point_set_strong( point ); + psh_point_set_fitted( point ); + } + } + + /* look up bottom zones */ + table = &blues->normal_bottom; + blue_count = table->count; + zone = table->zones + blue_count - 1; + + for ( ; blue_count > 0; blue_count--, zone-- ) + { + FT_Pos delta = zone->org_top - y; + + + if ( delta < -blues->blue_fuzz ) + break; + + if ( y >= zone->org_bottom - blues->blue_fuzz ) + if ( blues->no_overshoots || delta < blues->blue_threshold ) + { + point->cur_u = zone->cur_top; + psh_point_set_strong( point ); + psh_point_set_fitted( point ); + } + } + } + } + + + /* interpolate strong points with the help of hinted coordinates */ + static void + psh_glyph_interpolate_strong_points( PSH_Glyph glyph, + FT_Int dimension ) + { + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + + FT_UInt count = glyph->num_points; + PSH_Point point = glyph->points; + + + for ( ; count > 0; count--, point++ ) + { + PSH_Hint hint = point->hint; + + + if ( hint ) + { + FT_Pos delta; + + + if ( psh_point_is_edge_min( point ) ) + point->cur_u = hint->cur_pos; + + else if ( psh_point_is_edge_max( point ) ) + point->cur_u = hint->cur_pos + hint->cur_len; + + else + { + delta = point->org_u - hint->org_pos; + + if ( delta <= 0 ) + point->cur_u = hint->cur_pos + FT_MulFix( delta, scale ); + + else if ( delta >= hint->org_len ) + point->cur_u = hint->cur_pos + hint->cur_len + + FT_MulFix( delta - hint->org_len, scale ); + + else /* hint->org_len > 0 */ + point->cur_u = hint->cur_pos + + FT_MulDiv( delta, hint->cur_len, + hint->org_len ); + } + psh_point_set_fitted( point ); + } + } + } + + +#define PSH_MAX_STRONG_INTERNAL 16 + + static void + psh_glyph_interpolate_normal_points( PSH_Glyph glyph, + FT_Int dimension ) + { + +#if 1 + /* first technique: a point is strong if it is a local extremum */ + + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Memory memory = glyph->memory; + + PSH_Point* strongs = NULL; + PSH_Point strongs_0[PSH_MAX_STRONG_INTERNAL]; + FT_UInt num_strongs = 0; + + PSH_Point points = glyph->points; + PSH_Point points_end = points + glyph->num_points; + PSH_Point point; + + + /* first count the number of strong points */ + for ( point = points; point < points_end; point++ ) + { + if ( psh_point_is_strong( point ) ) + num_strongs++; + } + + if ( num_strongs == 0 ) /* nothing to do here */ + return; + + /* allocate an array to store a list of points, */ + /* stored in increasing org_u order */ + if ( num_strongs <= PSH_MAX_STRONG_INTERNAL ) + strongs = strongs_0; + else + { + FT_Error error; + + + if ( FT_NEW_ARRAY( strongs, num_strongs ) ) + return; + } + + num_strongs = 0; + for ( point = points; point < points_end; point++ ) + { + PSH_Point* insert; + + + if ( !psh_point_is_strong( point ) ) + continue; + + for ( insert = strongs + num_strongs; insert > strongs; insert-- ) + { + if ( insert[-1]->org_u <= point->org_u ) + break; + + insert[0] = insert[-1]; + } + insert[0] = point; + num_strongs++; + } + + /* now try to interpolate all normal points */ + for ( point = points; point < points_end; point++ ) + { + if ( psh_point_is_strong( point ) ) + continue; + + /* sometimes, some local extrema are smooth points */ + if ( psh_point_is_smooth( point ) ) + { + if ( point->dir_in == PSH_DIR_NONE || + point->dir_in != point->dir_out ) + continue; + + if ( !psh_point_is_extremum( point ) && + !psh_point_is_inflex( point ) ) + continue; + + point->flags &= ~PSH_POINT_SMOOTH; + } + + /* find best enclosing point coordinates then interpolate */ + { + PSH_Point before, after; + FT_UInt nn; + + + for ( nn = 0; nn < num_strongs; nn++ ) + if ( strongs[nn]->org_u > point->org_u ) + break; + + if ( nn == 0 ) /* point before the first strong point */ + { + after = strongs[0]; + + point->cur_u = after->cur_u + + FT_MulFix( point->org_u - after->org_u, + scale ); + } + else + { + before = strongs[nn - 1]; + + for ( nn = num_strongs; nn > 0; nn-- ) + if ( strongs[nn - 1]->org_u < point->org_u ) + break; + + if ( nn == num_strongs ) /* point is after last strong point */ + { + before = strongs[nn - 1]; + + point->cur_u = before->cur_u + + FT_MulFix( point->org_u - before->org_u, + scale ); + } + else + { + FT_Pos u; + + + after = strongs[nn]; + + /* now interpolate point between before and after */ + u = point->org_u; + + if ( u == before->org_u ) + point->cur_u = before->cur_u; + + else if ( u == after->org_u ) + point->cur_u = after->cur_u; + + else + point->cur_u = before->cur_u + + FT_MulDiv( u - before->org_u, + after->cur_u - before->cur_u, + after->org_u - before->org_u ); + } + } + psh_point_set_fitted( point ); + } + } + + if ( strongs != strongs_0 ) + FT_FREE( strongs ); + +#endif /* 1 */ + + } + + + /* interpolate other points */ + static void + psh_glyph_interpolate_other_points( PSH_Glyph glyph, + FT_Int dimension ) + { + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + PSH_Contour contour = glyph->contours; + FT_UInt num_contours = glyph->num_contours; + + + for ( ; num_contours > 0; num_contours--, contour++ ) + { + PSH_Point start = contour->start; + PSH_Point first, next, point; + FT_UInt fit_count; + + + /* count the number of strong points in this contour */ + next = start + contour->count; + fit_count = 0; + first = 0; + + for ( point = start; point < next; point++ ) + if ( psh_point_is_fitted( point ) ) + { + if ( !first ) + first = point; + + fit_count++; + } + + /* if there are less than 2 fitted points in the contour, we */ + /* simply scale and eventually translate the contour points */ + if ( fit_count < 2 ) + { + if ( fit_count == 1 ) + delta = first->cur_u - FT_MulFix( first->org_u, scale ); + + for ( point = start; point < next; point++ ) + if ( point != first ) + point->cur_u = FT_MulFix( point->org_u, scale ) + delta; + + goto Next_Contour; + } + + /* there are more than 2 strong points in this contour; we */ + /* need to interpolate weak points between them */ + start = first; + do + { + point = first; + + /* skip consecutive fitted points */ + for (;;) + { + next = first->next; + if ( next == start ) + goto Next_Contour; + + if ( !psh_point_is_fitted( next ) ) + break; + + first = next; + } + + /* find next fitted point after unfitted one */ + for (;;) + { + next = next->next; + if ( psh_point_is_fitted( next ) ) + break; + } + + /* now interpolate between them */ + { + FT_Pos org_a, org_ab, cur_a, cur_ab; + FT_Pos org_c, org_ac, cur_c; + FT_Fixed scale_ab; + + + if ( first->org_u <= next->org_u ) + { + org_a = first->org_u; + cur_a = first->cur_u; + org_ab = next->org_u - org_a; + cur_ab = next->cur_u - cur_a; + } + else + { + org_a = next->org_u; + cur_a = next->cur_u; + org_ab = first->org_u - org_a; + cur_ab = first->cur_u - cur_a; + } + + scale_ab = 0x10000L; + if ( org_ab > 0 ) + scale_ab = FT_DivFix( cur_ab, org_ab ); + + point = first->next; + do + { + org_c = point->org_u; + org_ac = org_c - org_a; + + if ( org_ac <= 0 ) + { + /* on the left of the interpolation zone */ + cur_c = cur_a + FT_MulFix( org_ac, scale ); + } + else if ( org_ac >= org_ab ) + { + /* on the right on the interpolation zone */ + cur_c = cur_a + cur_ab + FT_MulFix( org_ac - org_ab, scale ); + } + else + { + /* within the interpolation zone */ + cur_c = cur_a + FT_MulFix( org_ac, scale_ab ); + } + + point->cur_u = cur_c; + + point = point->next; + + } while ( point != next ); + } + + /* keep going until all points in the contours have been processed */ + first = next; + + } while ( first != start ); + + Next_Contour: + ; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** HIGH-LEVEL INTERFACE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_Error + ps_hints_apply( PS_Hints ps_hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ) + { + PSH_GlyphRec glyphrec; + PSH_Glyph glyph = &glyphrec; + FT_Error error; +#ifdef DEBUG_HINTER + FT_Memory memory; +#endif + FT_Int dimension; + + + /* something to do? */ + if ( outline->n_points == 0 || outline->n_contours == 0 ) + return PSH_Err_Ok; + +#ifdef DEBUG_HINTER + + memory = globals->memory; + + if ( ps_debug_glyph ) + { + psh_glyph_done( ps_debug_glyph ); + FT_FREE( ps_debug_glyph ); + } + + if ( FT_NEW( glyph ) ) + return error; + + ps_debug_glyph = glyph; + +#endif /* DEBUG_HINTER */ + + error = psh_glyph_init( glyph, outline, ps_hints, globals ); + if ( error ) + goto Exit; + + /* try to optimize the y_scale so that the top of non-capital letters + * is aligned on a pixel boundary whenever possible + */ + { + PSH_Dimension dim_x = &glyph->globals->dimension[0]; + PSH_Dimension dim_y = &glyph->globals->dimension[1]; + + FT_Fixed x_scale = dim_x->scale_mult; + FT_Fixed y_scale = dim_y->scale_mult; + + FT_Fixed old_x_scale = x_scale; + FT_Fixed old_y_scale = y_scale; + + FT_Fixed scaled; + FT_Fixed fitted; + + FT_Bool rescale = FALSE; + + + scaled = FT_MulFix( globals->blues.normal_top.zones->org_ref, y_scale ); + fitted = FT_PIX_ROUND( scaled ); + + if ( fitted != 0 && scaled != fitted ) + { + rescale = TRUE; + + y_scale = FT_MulDiv( y_scale, fitted, scaled ); + + if ( fitted < scaled ) + x_scale -= x_scale / 50; + + psh_globals_set_scale( glyph->globals, x_scale, y_scale, 0, 0 ); + } + + glyph->do_horz_hints = 1; + glyph->do_vert_hints = 1; + + glyph->do_horz_snapping = FT_BOOL( hint_mode == FT_RENDER_MODE_MONO || + hint_mode == FT_RENDER_MODE_LCD ); + + glyph->do_vert_snapping = FT_BOOL( hint_mode == FT_RENDER_MODE_MONO || + hint_mode == FT_RENDER_MODE_LCD_V ); + + glyph->do_stem_adjust = FT_BOOL( hint_mode != FT_RENDER_MODE_LIGHT ); + + for ( dimension = 0; dimension < 2; dimension++ ) + { + /* load outline coordinates into glyph */ + psh_glyph_load_points( glyph, dimension ); + + /* compute local extrema */ + psh_glyph_compute_extrema( glyph ); + + /* compute aligned stem/hints positions */ + psh_hint_table_align_hints( &glyph->hint_tables[dimension], + glyph->globals, + dimension, + glyph ); + + /* find strong points, align them, then interpolate others */ + psh_glyph_find_strong_points( glyph, dimension ); + if ( dimension == 1 ) + psh_glyph_find_blue_points( &globals->blues, glyph ); + psh_glyph_interpolate_strong_points( glyph, dimension ); + psh_glyph_interpolate_normal_points( glyph, dimension ); + psh_glyph_interpolate_other_points( glyph, dimension ); + + /* save hinted coordinates back to outline */ + psh_glyph_save_points( glyph, dimension ); + + if ( rescale ) + psh_globals_set_scale( glyph->globals, + old_x_scale, old_y_scale, 0, 0 ); + } + } + + Exit: + +#ifndef DEBUG_HINTER + psh_glyph_done( glyph ); +#endif + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.h b/uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.h new file mode 100644 index 000000000..1a248a705 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshalgo.h @@ -0,0 +1,255 @@ +/***************************************************************************/ +/* */ +/* pshalgo.h */ +/* */ +/* PostScript hinting algorithm (specification). */ +/* */ +/* Copyright 2001, 2002, 2003, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHALGO_H__ +#define __PSHALGO_H__ + + +#include "pshrec.h" +#include "pshglob.h" +#include FT_TRIGONOMETRY_H + + +FT_BEGIN_HEADER + + + /* handle to Hint structure */ + typedef struct PSH_HintRec_* PSH_Hint; + + /* hint bit-flags */ + typedef enum PSH_Hint_Flags_ + { + PSH_HINT_GHOST = PS_HINT_FLAG_GHOST, + PSH_HINT_BOTTOM = PS_HINT_FLAG_BOTTOM, + PSH_HINT_ACTIVE = 4, + PSH_HINT_FITTED = 8 + + } PSH_Hint_Flags; + + +#define psh_hint_is_active( x ) ( ( (x)->flags & PSH_HINT_ACTIVE ) != 0 ) +#define psh_hint_is_ghost( x ) ( ( (x)->flags & PSH_HINT_GHOST ) != 0 ) +#define psh_hint_is_fitted( x ) ( ( (x)->flags & PSH_HINT_FITTED ) != 0 ) + +#define psh_hint_activate( x ) (x)->flags |= PSH_HINT_ACTIVE +#define psh_hint_deactivate( x ) (x)->flags &= ~PSH_HINT_ACTIVE +#define psh_hint_set_fitted( x ) (x)->flags |= PSH_HINT_FITTED + + /* hint structure */ + typedef struct PSH_HintRec_ + { + FT_Int org_pos; + FT_Int org_len; + FT_Pos cur_pos; + FT_Pos cur_len; + FT_UInt flags; + PSH_Hint parent; + FT_Int order; + + } PSH_HintRec; + + + /* this is an interpolation zone used for strong points; */ + /* weak points are interpolated according to their strong */ + /* neighbours */ + typedef struct PSH_ZoneRec_ + { + FT_Fixed scale; + FT_Fixed delta; + FT_Pos min; + FT_Pos max; + + } PSH_ZoneRec, *PSH_Zone; + + + typedef struct PSH_Hint_TableRec_ + { + FT_UInt max_hints; + FT_UInt num_hints; + PSH_Hint hints; + PSH_Hint* sort; + PSH_Hint* sort_global; + FT_UInt num_zones; + PSH_ZoneRec* zones; + PSH_Zone zone; + PS_Mask_Table hint_masks; + PS_Mask_Table counter_masks; + + } PSH_Hint_TableRec, *PSH_Hint_Table; + + + typedef struct PSH_PointRec_* PSH_Point; + typedef struct PSH_ContourRec_* PSH_Contour; + + enum + { + PSH_DIR_NONE = 4, + PSH_DIR_UP = -1, + PSH_DIR_DOWN = 1, + PSH_DIR_LEFT = -2, + PSH_DIR_RIGHT = 2 + }; + +#define PSH_DIR_HORIZONTAL 2 +#define PSH_DIR_VERTICAL 1 + +#define PSH_DIR_COMPARE( d1, d2 ) ( (d1) == (d2) || (d1) == -(d2) ) +#define PSH_DIR_IS_HORIZONTAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_HORIZONTAL ) +#define PSH_DIR_IS_VERTICAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_VERTICAL ) + + + /* the following bit-flags are computed once by the glyph */ + /* analyzer, for both dimensions */ + enum + { + PSH_POINT_OFF = 1, /* point is off the curve */ + PSH_POINT_SMOOTH = 2, /* point is smooth */ + PSH_POINT_INFLEX = 4 /* point is inflection */ + }; + +#define psh_point_is_smooth( p ) ( (p)->flags & PSH_POINT_SMOOTH ) +#define psh_point_is_off( p ) ( (p)->flags & PSH_POINT_OFF ) +#define psh_point_is_inflex( p ) ( (p)->flags & PSH_POINT_INFLEX ) + +#define psh_point_set_smooth( p ) (p)->flags |= PSH_POINT_SMOOTH +#define psh_point_set_off( p ) (p)->flags |= PSH_POINT_OFF +#define psh_point_set_inflex( p ) (p)->flags |= PSH_POINT_INFLEX + + /* the following bit-flags are re-computed for each dimension */ + enum + { + PSH_POINT_STRONG = 16, /* point is strong */ + PSH_POINT_FITTED = 32, /* point is already fitted */ + PSH_POINT_EXTREMUM = 64, /* point is local extremum */ + PSH_POINT_POSITIVE = 128, /* extremum has positive contour flow */ + PSH_POINT_NEGATIVE = 256, /* extremum has negative contour flow */ + PSH_POINT_EDGE_MIN = 512, /* point is aligned to left/bottom stem edge */ + PSH_POINT_EDGE_MAX = 1024 /* point is aligned to top/right stem edge */ + }; + +#define psh_point_is_strong( p ) ( (p)->flags2 & PSH_POINT_STRONG ) +#define psh_point_is_fitted( p ) ( (p)->flags2 & PSH_POINT_FITTED ) +#define psh_point_is_extremum( p ) ( (p)->flags2 & PSH_POINT_EXTREMUM ) +#define psh_point_is_positive( p ) ( (p)->flags2 & PSH_POINT_POSITIVE ) +#define psh_point_is_negative( p ) ( (p)->flags2 & PSH_POINT_NEGATIVE ) +#define psh_point_is_edge_min( p ) ( (p)->flags2 & PSH_POINT_EDGE_MIN ) +#define psh_point_is_edge_max( p ) ( (p)->flags2 & PSH_POINT_EDGE_MAX ) + +#define psh_point_set_strong( p ) (p)->flags2 |= PSH_POINT_STRONG +#define psh_point_set_fitted( p ) (p)->flags2 |= PSH_POINT_FITTED +#define psh_point_set_extremum( p ) (p)->flags2 |= PSH_POINT_EXTREMUM +#define psh_point_set_positive( p ) (p)->flags2 |= PSH_POINT_POSITIVE +#define psh_point_set_negative( p ) (p)->flags2 |= PSH_POINT_NEGATIVE +#define psh_point_set_edge_min( p ) (p)->flags2 |= PSH_POINT_EDGE_MIN +#define psh_point_set_edge_max( p ) (p)->flags2 |= PSH_POINT_EDGE_MAX + + + typedef struct PSH_PointRec_ + { + PSH_Point prev; + PSH_Point next; + PSH_Contour contour; + FT_UInt flags; + FT_UInt flags2; + FT_Char dir_in; + FT_Char dir_out; + FT_Angle angle_in; + FT_Angle angle_out; + PSH_Hint hint; + FT_Pos org_u; + FT_Pos org_v; + FT_Pos cur_u; +#ifdef DEBUG_HINTER + FT_Pos org_x; + FT_Pos cur_x; + FT_Pos org_y; + FT_Pos cur_y; + FT_UInt flags_x; + FT_UInt flags_y; +#endif + + } PSH_PointRec; + + +#define PSH_POINT_EQUAL_ORG( a, b ) ( (a)->org_u == (b)->org_u && \ + (a)->org_v == (b)->org_v ) + +#define PSH_POINT_ANGLE( a, b ) FT_Atan2( (b)->org_u - (a)->org_u, \ + (b)->org_v - (a)->org_v ) + + typedef struct PSH_ContourRec_ + { + PSH_Point start; + FT_UInt count; + + } PSH_ContourRec; + + + typedef struct PSH_GlyphRec_ + { + FT_UInt num_points; + FT_UInt num_contours; + + PSH_Point points; + PSH_Contour contours; + + FT_Memory memory; + FT_Outline* outline; + PSH_Globals globals; + PSH_Hint_TableRec hint_tables[2]; + + FT_Bool vertical; + FT_Int major_dir; + FT_Int minor_dir; + + FT_Bool do_horz_hints; + FT_Bool do_vert_hints; + FT_Bool do_horz_snapping; + FT_Bool do_vert_snapping; + FT_Bool do_stem_adjust; + + } PSH_GlyphRec, *PSH_Glyph; + + +#ifdef DEBUG_HINTER + extern PSH_Hint_Table ps_debug_hint_table; + + typedef void + (*PSH_HintFunc)( PSH_Hint hint, + FT_Bool vertical ); + + extern PSH_HintFunc ps_debug_hint_func; + + extern PSH_Glyph ps_debug_glyph; +#endif + + + extern FT_Error + ps_hints_apply( PS_Hints ps_hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ); + + +FT_END_HEADER + + +#endif /* __PSHALGO_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.c b/uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.c new file mode 100644 index 000000000..88f65cb55 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.c @@ -0,0 +1,750 @@ +/***************************************************************************/ +/* */ +/* pshglob.c */ +/* */ +/* PostScript hinter global hinting management (body). */ +/* Inspired by the new auto-hinter module. */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "pshglob.h" + +#ifdef DEBUG_HINTER + PSH_Globals ps_debug_globals = 0; +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STANDARD WIDTHS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* scale the widths/heights table */ + static void + psh_globals_scale_widths( PSH_Globals globals, + FT_UInt direction ) + { + PSH_Dimension dim = &globals->dimension[direction]; + PSH_Widths stdw = &dim->stdw; + FT_UInt count = stdw->count; + PSH_Width width = stdw->widths; + PSH_Width stand = width; /* standard width/height */ + FT_Fixed scale = dim->scale_mult; + + + if ( count > 0 ) + { + width->cur = FT_MulFix( width->org, scale ); + width->fit = FT_PIX_ROUND( width->cur ); + + width++; + count--; + + for ( ; count > 0; count--, width++ ) + { + FT_Pos w, dist; + + + w = FT_MulFix( width->org, scale ); + dist = w - stand->cur; + + if ( dist < 0 ) + dist = -dist; + + if ( dist < 128 ) + w = stand->cur; + + width->cur = w; + width->fit = FT_PIX_ROUND( w ); + } + } + } + + +#if 0 + + /* org_width is is font units, result in device pixels, 26.6 format */ + FT_LOCAL_DEF( FT_Pos ) + psh_dimension_snap_width( PSH_Dimension dimension, + FT_Int org_width ) + { + FT_UInt n; + FT_Pos width = FT_MulFix( org_width, dimension->scale_mult ); + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + + + for ( n = 0; n < dimension->stdw.count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = dimension->stdw.widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + if ( width >= reference ) + { + width -= 0x21; + if ( width < reference ) + width = reference; + } + else + { + width += 0x21; + if ( width > reference ) + width = reference; + } + + return width; + } + +#endif /* 0 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BLUE ZONES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + psh_blues_set_zones_0( PSH_Blues target, + FT_Bool is_others, + FT_UInt read_count, + FT_Short* read, + PSH_Blue_Table top_table, + PSH_Blue_Table bot_table ) + { + FT_UInt count_top = top_table->count; + FT_UInt count_bot = bot_table->count; + FT_Bool first = 1; + + FT_UNUSED( target ); + + + for ( ; read_count > 1; read_count -= 2 ) + { + FT_Int reference, delta; + FT_UInt count; + PSH_Blue_Zone zones, zone; + FT_Bool top; + + + /* read blue zone entry, and select target top/bottom zone */ + top = 0; + if ( first || is_others ) + { + reference = read[1]; + delta = read[0] - reference; + + zones = bot_table->zones; + count = count_bot; + first = 0; + } + else + { + reference = read[0]; + delta = read[1] - reference; + + zones = top_table->zones; + count = count_top; + top = 1; + } + + /* insert into sorted table */ + zone = zones; + for ( ; count > 0; count--, zone++ ) + { + if ( reference < zone->org_ref ) + break; + + if ( reference == zone->org_ref ) + { + FT_Int delta0 = zone->org_delta; + + + /* we have two zones on the same reference position -- */ + /* only keep the largest one */ + if ( delta < 0 ) + { + if ( delta < delta0 ) + zone->org_delta = delta; + } + else + { + if ( delta > delta0 ) + zone->org_delta = delta; + } + goto Skip; + } + } + + for ( ; count > 0; count-- ) + zone[count] = zone[count-1]; + + zone->org_ref = reference; + zone->org_delta = delta; + + if ( top ) + count_top++; + else + count_bot++; + + Skip: + read += 2; + } + + top_table->count = count_top; + bot_table->count = count_bot; + } + + + /* Re-read blue zones from the original fonts and store them into out */ + /* private structure. This function re-orders, sanitizes and */ + /* fuzz-expands the zones as well. */ + static void + psh_blues_set_zones( PSH_Blues target, + FT_UInt count, + FT_Short* blues, + FT_UInt count_others, + FT_Short* other_blues, + FT_Int fuzz, + FT_Int family ) + { + PSH_Blue_Table top_table, bot_table; + FT_Int count_top, count_bot; + + + if ( family ) + { + top_table = &target->family_top; + bot_table = &target->family_bottom; + } + else + { + top_table = &target->normal_top; + bot_table = &target->normal_bottom; + } + + /* read the input blue zones, and build two sorted tables */ + /* (one for the top zones, the other for the bottom zones) */ + top_table->count = 0; + bot_table->count = 0; + + /* first, the blues */ + psh_blues_set_zones_0( target, 0, + count, blues, top_table, bot_table ); + psh_blues_set_zones_0( target, 1, + count_others, other_blues, top_table, bot_table ); + + count_top = top_table->count; + count_bot = bot_table->count; + + /* sanitize top table */ + if ( count_top > 0 ) + { + PSH_Blue_Zone zone = top_table->zones; + + + for ( count = count_top; count > 0; count--, zone++ ) + { + FT_Int delta; + + + if ( count > 1 ) + { + delta = zone[1].org_ref - zone[0].org_ref; + if ( zone->org_delta > delta ) + zone->org_delta = delta; + } + + zone->org_bottom = zone->org_ref; + zone->org_top = zone->org_delta + zone->org_ref; + } + } + + /* sanitize bottom table */ + if ( count_bot > 0 ) + { + PSH_Blue_Zone zone = bot_table->zones; + + + for ( count = count_bot; count > 0; count--, zone++ ) + { + FT_Int delta; + + + if ( count > 1 ) + { + delta = zone[0].org_ref - zone[1].org_ref; + if ( zone->org_delta < delta ) + zone->org_delta = delta; + } + + zone->org_top = zone->org_ref; + zone->org_bottom = zone->org_delta + zone->org_ref; + } + } + + /* expand top and bottom tables with blue fuzz */ + { + FT_Int dim, top, bot, delta; + PSH_Blue_Zone zone; + + + zone = top_table->zones; + count = count_top; + + for ( dim = 1; dim >= 0; dim-- ) + { + if ( count > 0 ) + { + /* expand the bottom of the lowest zone normally */ + zone->org_bottom -= fuzz; + + /* expand the top and bottom of intermediate zones; */ + /* checking that the interval is smaller than the fuzz */ + top = zone->org_top; + + for ( count--; count > 0; count-- ) + { + bot = zone[1].org_bottom; + delta = bot - top; + + if ( delta < 2 * fuzz ) + zone[0].org_top = zone[1].org_bottom = top + delta / 2; + else + { + zone[0].org_top = top + fuzz; + zone[1].org_bottom = bot - fuzz; + } + + zone++; + top = zone->org_top; + } + + /* expand the top of the highest zone normally */ + zone->org_top = top + fuzz; + } + zone = bot_table->zones; + count = count_bot; + } + } + } + + + /* reset the blues table when the device transform changes */ + static void + psh_blues_scale_zones( PSH_Blues blues, + FT_Fixed scale, + FT_Pos delta ) + { + FT_UInt count; + FT_UInt num; + PSH_Blue_Table table = 0; + + /* */ + /* Determine whether we need to suppress overshoots or */ + /* not. We simply need to compare the vertical scale */ + /* parameter to the raw bluescale value. Here is why: */ + /* */ + /* We need to suppress overshoots for all pointsizes. */ + /* At 300dpi that satisfies: */ + /* */ + /* pointsize < 240*bluescale + 0.49 */ + /* */ + /* This corresponds to: */ + /* */ + /* pixelsize < 1000*bluescale + 49/24 */ + /* */ + /* scale*EM_Size < 1000*bluescale + 49/24 */ + /* */ + /* However, for normal Type 1 fonts, EM_Size is 1000! */ + /* We thus only check: */ + /* */ + /* scale < bluescale + 49/24000 */ + /* */ + /* which we shorten to */ + /* */ + /* "scale < bluescale" */ + /* */ + /* Note that `blue_scale' is stored 1000 times its real */ + /* value, and that `scale' converts from font units to */ + /* fractional pixels. */ + /* */ + + /* 1000 / 64 = 125 / 8 */ + if ( scale >= 0x20C49BAL ) + blues->no_overshoots = FT_BOOL( scale < blues->blue_scale * 8 / 125 ); + else + blues->no_overshoots = FT_BOOL( scale * 125 < blues->blue_scale * 8 ); + + /* */ + /* The blue threshold is the font units distance under */ + /* which overshoots are suppressed due to the BlueShift */ + /* even if the scale is greater than BlueScale. */ + /* */ + /* It is the smallest distance such that */ + /* */ + /* dist <= BlueShift && dist*scale <= 0.5 pixels */ + /* */ + { + FT_Int threshold = blues->blue_shift; + + + while ( threshold > 0 && FT_MulFix( threshold, scale ) > 32 ) + threshold--; + + blues->blue_threshold = threshold; + } + + for ( num = 0; num < 4; num++ ) + { + PSH_Blue_Zone zone; + + + switch ( num ) + { + case 0: + table = &blues->normal_top; + break; + case 1: + table = &blues->normal_bottom; + break; + case 2: + table = &blues->family_top; + break; + default: + table = &blues->family_bottom; + break; + } + + zone = table->zones; + count = table->count; + for ( ; count > 0; count--, zone++ ) + { + zone->cur_top = FT_MulFix( zone->org_top, scale ) + delta; + zone->cur_bottom = FT_MulFix( zone->org_bottom, scale ) + delta; + zone->cur_ref = FT_MulFix( zone->org_ref, scale ) + delta; + zone->cur_delta = FT_MulFix( zone->org_delta, scale ); + + /* round scaled reference position */ + zone->cur_ref = FT_PIX_ROUND( zone->cur_ref ); + +#if 0 + if ( zone->cur_ref > zone->cur_top ) + zone->cur_ref -= 64; + else if ( zone->cur_ref < zone->cur_bottom ) + zone->cur_ref += 64; +#endif + } + } + + /* process the families now */ + + for ( num = 0; num < 2; num++ ) + { + PSH_Blue_Zone zone1, zone2; + FT_UInt count1, count2; + PSH_Blue_Table normal, family; + + + switch ( num ) + { + case 0: + normal = &blues->normal_top; + family = &blues->family_top; + break; + + default: + normal = &blues->normal_bottom; + family = &blues->family_bottom; + } + + zone1 = normal->zones; + count1 = normal->count; + + for ( ; count1 > 0; count1--, zone1++ ) + { + /* try to find a family zone whose reference position is less */ + /* than 1 pixel far from the current zone */ + zone2 = family->zones; + count2 = family->count; + + for ( ; count2 > 0; count2--, zone2++ ) + { + FT_Pos Delta; + + + Delta = zone1->org_ref - zone2->org_ref; + if ( Delta < 0 ) + Delta = -Delta; + + if ( FT_MulFix( Delta, scale ) < 64 ) + { + zone1->cur_top = zone2->cur_top; + zone1->cur_bottom = zone2->cur_bottom; + zone1->cur_ref = zone2->cur_ref; + zone1->cur_delta = zone2->cur_delta; + break; + } + } + } + } + } + + + FT_LOCAL_DEF( void ) + psh_blues_snap_stem( PSH_Blues blues, + FT_Int stem_top, + FT_Int stem_bot, + PSH_Alignment alignment ) + { + PSH_Blue_Table table; + FT_UInt count; + FT_Pos delta; + PSH_Blue_Zone zone; + FT_Int no_shoots; + + + alignment->align = PSH_BLUE_ALIGN_NONE; + + no_shoots = blues->no_overshoots; + + /* look up stem top in top zones table */ + table = &blues->normal_top; + count = table->count; + zone = table->zones; + + for ( ; count > 0; count--, zone++ ) + { + delta = stem_top - zone->org_bottom; + if ( delta < -blues->blue_fuzz ) + break; + + if ( stem_top <= zone->org_top + blues->blue_fuzz ) + { + if ( no_shoots || delta <= blues->blue_threshold ) + { + alignment->align |= PSH_BLUE_ALIGN_TOP; + alignment->align_top = zone->cur_ref; + } + break; + } + } + + /* look up stem bottom in bottom zones table */ + table = &blues->normal_bottom; + count = table->count; + zone = table->zones + count-1; + + for ( ; count > 0; count--, zone-- ) + { + delta = zone->org_top - stem_bot; + if ( delta < -blues->blue_fuzz ) + break; + + if ( stem_bot >= zone->org_bottom - blues->blue_fuzz ) + { + if ( no_shoots || delta < blues->blue_threshold ) + { + alignment->align |= PSH_BLUE_ALIGN_BOT; + alignment->align_bot = zone->cur_ref; + } + break; + } + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLOBAL HINTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + psh_globals_destroy( PSH_Globals globals ) + { + if ( globals ) + { + FT_Memory memory; + + + memory = globals->memory; + globals->dimension[0].stdw.count = 0; + globals->dimension[1].stdw.count = 0; + + globals->blues.normal_top.count = 0; + globals->blues.normal_bottom.count = 0; + globals->blues.family_top.count = 0; + globals->blues.family_bottom.count = 0; + + FT_FREE( globals ); + +#ifdef DEBUG_HINTER + ps_debug_globals = 0; +#endif + } + } + + + static FT_Error + psh_globals_new( FT_Memory memory, + T1_Private* priv, + PSH_Globals *aglobals ) + { + PSH_Globals globals = NULL; + FT_Error error; + + + if ( !FT_NEW( globals ) ) + { + FT_UInt count; + FT_Short* read; + + + globals->memory = memory; + + /* copy standard widths */ + { + PSH_Dimension dim = &globals->dimension[1]; + PSH_Width write = dim->stdw.widths; + + + write->org = priv->standard_width[0]; + write++; + + read = priv->snap_widths; + for ( count = priv->num_snap_widths; count > 0; count-- ) + { + write->org = *read; + write++; + read++; + } + + dim->stdw.count = priv->num_snap_widths + 1; + } + + /* copy standard heights */ + { + PSH_Dimension dim = &globals->dimension[0]; + PSH_Width write = dim->stdw.widths; + + + write->org = priv->standard_height[0]; + write++; + read = priv->snap_heights; + for ( count = priv->num_snap_heights; count > 0; count-- ) + { + write->org = *read; + write++; + read++; + } + + dim->stdw.count = priv->num_snap_heights + 1; + } + + /* copy blue zones */ + psh_blues_set_zones( &globals->blues, priv->num_blue_values, + priv->blue_values, priv->num_other_blues, + priv->other_blues, priv->blue_fuzz, 0 ); + + psh_blues_set_zones( &globals->blues, priv->num_family_blues, + priv->family_blues, priv->num_family_other_blues, + priv->family_other_blues, priv->blue_fuzz, 1 ); + + globals->blues.blue_scale = priv->blue_scale; + globals->blues.blue_shift = priv->blue_shift; + globals->blues.blue_fuzz = priv->blue_fuzz; + + globals->dimension[0].scale_mult = 0; + globals->dimension[0].scale_delta = 0; + globals->dimension[1].scale_mult = 0; + globals->dimension[1].scale_delta = 0; + +#ifdef DEBUG_HINTER + ps_debug_globals = globals; +#endif + } + + *aglobals = globals; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + psh_globals_set_scale( PSH_Globals globals, + FT_Fixed x_scale, + FT_Fixed y_scale, + FT_Fixed x_delta, + FT_Fixed y_delta ) + { + PSH_Dimension dim = &globals->dimension[0]; + + + dim = &globals->dimension[0]; + if ( x_scale != dim->scale_mult || + x_delta != dim->scale_delta ) + { + dim->scale_mult = x_scale; + dim->scale_delta = x_delta; + + psh_globals_scale_widths( globals, 0 ); + } + + dim = &globals->dimension[1]; + if ( y_scale != dim->scale_mult || + y_delta != dim->scale_delta ) + { + dim->scale_mult = y_scale; + dim->scale_delta = y_delta; + + psh_globals_scale_widths( globals, 1 ); + psh_blues_scale_zones( &globals->blues, y_scale, y_delta ); + } + + return 0; + } + + + FT_LOCAL_DEF( void ) + psh_globals_funcs_init( PSH_Globals_FuncsRec* funcs ) + { + funcs->create = psh_globals_new; + funcs->set_scale = psh_globals_set_scale; + funcs->destroy = psh_globals_destroy; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.h b/uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.h new file mode 100644 index 000000000..c51162615 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshglob.h @@ -0,0 +1,196 @@ +/***************************************************************************/ +/* */ +/* pshglob.h */ +/* */ +/* PostScript hinter global hinting management. */ +/* */ +/* Copyright 2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHGLOB_H__ +#define __PSHGLOB_H__ + + +#include FT_FREETYPE_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLOBAL HINTS INTERNALS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* @constant: */ + /* PS_GLOBALS_MAX_BLUE_ZONES */ + /* */ + /* @description: */ + /* The maximum number of blue zones in a font global hints structure. */ + /* See @PS_Globals_BluesRec. */ + /* */ +#define PS_GLOBALS_MAX_BLUE_ZONES 16 + + + /*************************************************************************/ + /* */ + /* @constant: */ + /* PS_GLOBALS_MAX_STD_WIDTHS */ + /* */ + /* @description: */ + /* The maximum number of standard and snap widths in either the */ + /* horizontal or vertical direction. See @PS_Globals_WidthsRec. */ + /* */ +#define PS_GLOBALS_MAX_STD_WIDTHS 16 + + + /* standard and snap width */ + typedef struct PSH_WidthRec_ + { + FT_Int org; + FT_Pos cur; + FT_Pos fit; + + } PSH_WidthRec, *PSH_Width; + + + /* standard and snap widths table */ + typedef struct PSH_WidthsRec_ + { + FT_UInt count; + PSH_WidthRec widths[PS_GLOBALS_MAX_STD_WIDTHS]; + + } PSH_WidthsRec, *PSH_Widths; + + + typedef struct PSH_DimensionRec_ + { + PSH_WidthsRec stdw; + FT_Fixed scale_mult; + FT_Fixed scale_delta; + + } PSH_DimensionRec, *PSH_Dimension; + + + /* blue zone descriptor */ + typedef struct PSH_Blue_ZoneRec_ + { + FT_Int org_ref; + FT_Int org_delta; + FT_Int org_top; + FT_Int org_bottom; + + FT_Pos cur_ref; + FT_Pos cur_delta; + FT_Pos cur_bottom; + FT_Pos cur_top; + + } PSH_Blue_ZoneRec, *PSH_Blue_Zone; + + + typedef struct PSH_Blue_TableRec_ + { + FT_UInt count; + PSH_Blue_ZoneRec zones[PS_GLOBALS_MAX_BLUE_ZONES]; + + } PSH_Blue_TableRec, *PSH_Blue_Table; + + + /* blue zones table */ + typedef struct PSH_BluesRec_ + { + PSH_Blue_TableRec normal_top; + PSH_Blue_TableRec normal_bottom; + PSH_Blue_TableRec family_top; + PSH_Blue_TableRec family_bottom; + + FT_Fixed blue_scale; + FT_Int blue_shift; + FT_Int blue_threshold; + FT_Int blue_fuzz; + FT_Bool no_overshoots; + + } PSH_BluesRec, *PSH_Blues; + + + /* font globals. */ + /* dimension 0 => X coordinates + vertical hints/stems */ + /* dimension 1 => Y coordinates + horizontal hints/stems */ + typedef struct PSH_GlobalsRec_ + { + FT_Memory memory; + PSH_DimensionRec dimension[2]; + PSH_BluesRec blues; + + } PSH_GlobalsRec; + + +#define PSH_BLUE_ALIGN_NONE 0 +#define PSH_BLUE_ALIGN_TOP 1 +#define PSH_BLUE_ALIGN_BOT 2 + + + typedef struct PSH_AlignmentRec_ + { + int align; + FT_Pos align_top; + FT_Pos align_bot; + + } PSH_AlignmentRec, *PSH_Alignment; + + + FT_LOCAL( void ) + psh_globals_funcs_init( PSH_Globals_FuncsRec* funcs ); + + +#if 0 + /* snap a stem width to fitter coordinates. `org_width' is in font */ + /* units. The result is in device pixels (26.6 format). */ + FT_LOCAL( FT_Pos ) + psh_dimension_snap_width( PSH_Dimension dimension, + FT_Int org_width ); +#endif + + FT_LOCAL( FT_Error ) + psh_globals_set_scale( PSH_Globals globals, + FT_Fixed x_scale, + FT_Fixed y_scale, + FT_Fixed x_delta, + FT_Fixed y_delta ); + + /* snap a stem to one or two blue zones */ + FT_LOCAL( void ) + psh_blues_snap_stem( PSH_Blues blues, + FT_Int stem_top, + FT_Int stem_bot, + PSH_Alignment alignment ); + /* */ + +#ifdef DEBUG_HINTER + extern PSH_Globals ps_debug_globals; +#endif + + +FT_END_HEADER + + +#endif /* __PSHGLOB_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshinter.c b/uppsrc/plugin/FT_fontsys/src/pshinter/pshinter.c new file mode 100644 index 000000000..b1500ac3c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshinter.c @@ -0,0 +1,29 @@ +/***************************************************************************/ +/* */ +/* pshinter.c */ +/* */ +/* FreeType PostScript Hinting module */ +/* */ +/* Copyright 2001, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "pshpic.c" +#include "pshrec.c" +#include "pshglob.c" +#include "pshalgo.c" +#include "pshmod.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.c b/uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.c new file mode 100644 index 000000000..4db9f429d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.c @@ -0,0 +1,118 @@ +/***************************************************************************/ +/* */ +/* pshmod.c */ +/* */ +/* FreeType PostScript hinter module implementation (body). */ +/* */ +/* Copyright 2001, 2002, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include "pshrec.h" +#include "pshalgo.h" +#include "pshpic.h" + + + /* the Postscript Hinter module structure */ + typedef struct PS_Hinter_Module_Rec_ + { + FT_ModuleRec root; + PS_HintsRec ps_hints; + + PSH_Globals_FuncsRec globals_funcs; + T1_Hints_FuncsRec t1_funcs; + T2_Hints_FuncsRec t2_funcs; + + } PS_Hinter_ModuleRec, *PS_Hinter_Module; + + + /* finalize module */ + FT_CALLBACK_DEF( void ) + ps_hinter_done( PS_Hinter_Module module ) + { + module->t1_funcs.hints = NULL; + module->t2_funcs.hints = NULL; + + ps_hints_done( &module->ps_hints ); + } + + + /* initialize module, create hints recorder and the interface */ + FT_CALLBACK_DEF( FT_Error ) + ps_hinter_init( PS_Hinter_Module module ) + { + FT_Memory memory = module->root.memory; + void* ph = &module->ps_hints; + + + ps_hints_init( &module->ps_hints, memory ); + + psh_globals_funcs_init( &module->globals_funcs ); + + t1_hints_funcs_init( &module->t1_funcs ); + module->t1_funcs.hints = (T1_Hints)ph; + + t2_hints_funcs_init( &module->t2_funcs ); + module->t2_funcs.hints = (T2_Hints)ph; + + return 0; + } + + + /* returns global hints interface */ + FT_CALLBACK_DEF( PSH_Globals_Funcs ) + pshinter_get_globals_funcs( FT_Module module ) + { + return &((PS_Hinter_Module)module)->globals_funcs; + } + + + /* return Type 1 hints interface */ + FT_CALLBACK_DEF( T1_Hints_Funcs ) + pshinter_get_t1_funcs( FT_Module module ) + { + return &((PS_Hinter_Module)module)->t1_funcs; + } + + + /* return Type 2 hints interface */ + FT_CALLBACK_DEF( T2_Hints_Funcs ) + pshinter_get_t2_funcs( FT_Module module ) + { + return &((PS_Hinter_Module)module)->t2_funcs; + } + + + FT_DEFINE_PSHINTER_INTERFACE(pshinter_interface, + pshinter_get_globals_funcs, + pshinter_get_t1_funcs, + pshinter_get_t2_funcs + ) + + + FT_DEFINE_MODULE(pshinter_module_class, + + 0, + sizeof ( PS_Hinter_ModuleRec ), + "pshinter", + 0x10000L, + 0x20000L, + + &FTPSHINTER_INTERFACE_GET, /* module-specific interface */ + + (FT_Module_Constructor)ps_hinter_init, + (FT_Module_Destructor) ps_hinter_done, + (FT_Module_Requester) 0 /* no additional interface for now */ + ) + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.h b/uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.h new file mode 100644 index 000000000..816f4a76d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshmod.h @@ -0,0 +1,39 @@ +/***************************************************************************/ +/* */ +/* pshmod.h */ +/* */ +/* PostScript hinter module interface (specification). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHMOD_H__ +#define __PSHMOD_H__ + + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_MODULE( pshinter_module_class ) + + +FT_END_HEADER + + +#endif /* __PSHMOD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshnterr.h b/uppsrc/plugin/FT_fontsys/src/pshinter/pshnterr.h new file mode 100644 index 000000000..3c0029fbf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshnterr.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* pshnterr.h */ +/* */ +/* PS Hinter error codes (specification only). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PSHinter error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PSHNTERR_H__ +#define __PSHNTERR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX PSH_Err_ +#define FT_ERR_BASE FT_Mod_Err_PShinter + +#include FT_ERRORS_H + +#endif /* __PSHNTERR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.c b/uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.c new file mode 100644 index 000000000..214568184 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.c @@ -0,0 +1,69 @@ +/***************************************************************************/ +/* */ +/* pshpic.c */ +/* */ +/* The FreeType position independent code services for pshinter module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "pshpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from pshmod.c */ + void FT_Init_Class_pshinter_interface( FT_Library, PSHinter_Interface*); + + void + pshinter_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->pshinter ) + { + FT_FREE( pic_container->pshinter ); + pic_container->pshinter = NULL; + } + } + + + FT_Error + pshinter_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = PSH_Err_Ok; + PSHinterPIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->pshinter = container; + + /* add call to initialization function when you add new scripts */ + FT_Init_Class_pshinter_interface(library, &container->pshinter_interface); + +/*Exit:*/ + if(error) + pshinter_module_class_pic_free(library); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.h b/uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.h new file mode 100644 index 000000000..3555d8e85 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshpic.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* pshpic.h */ +/* */ +/* The FreeType position independent code services for pshinter module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHPIC_H__ +#define __PSHPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC + +#define FTPSHINTER_INTERFACE_GET pshinter_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + typedef struct PSHinterPIC_ + { + PSHinter_Interface pshinter_interface; + } PSHinterPIC; + +#define GET_PIC(lib) ((PSHinterPIC*)((lib)->pic_container.autofit)) +#define FTPSHINTER_INTERFACE_GET (GET_PIC(library)->pshinter_interface) + + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __PSHPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.c b/uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.c new file mode 100644 index 000000000..1b6eddd4b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.c @@ -0,0 +1,1224 @@ +/***************************************************************************/ +/* */ +/* pshrec.c */ +/* */ +/* FreeType PostScript hints recorder (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H + +#include "pshrec.h" +#include "pshalgo.h" + +#include "pshnterr.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pshrec + +#ifdef DEBUG_HINTER + PS_Hints ps_debug_hints = 0; + int ps_debug_no_horz_hints = 0; + int ps_debug_no_vert_hints = 0; +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_HINT MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* destroy hints table */ + static void + ps_hint_table_done( PS_Hint_Table table, + FT_Memory memory ) + { + FT_FREE( table->hints ); + table->num_hints = 0; + table->max_hints = 0; + } + + + /* ensure that a table can contain "count" elements */ + static FT_Error + ps_hint_table_ensure( PS_Hint_Table table, + FT_UInt count, + FT_Memory memory ) + { + FT_UInt old_max = table->max_hints; + FT_UInt new_max = count; + FT_Error error = PSH_Err_Ok; + + + if ( new_max > old_max ) + { + /* try to grow the table */ + new_max = FT_PAD_CEIL( new_max, 8 ); + if ( !FT_RENEW_ARRAY( table->hints, old_max, new_max ) ) + table->max_hints = new_max; + } + return error; + } + + + static FT_Error + ps_hint_table_alloc( PS_Hint_Table table, + FT_Memory memory, + PS_Hint *ahint ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt count; + PS_Hint hint = 0; + + + count = table->num_hints; + count++; + + if ( count >= table->max_hints ) + { + error = ps_hint_table_ensure( table, count, memory ); + if ( error ) + goto Exit; + } + + hint = table->hints + count - 1; + hint->pos = 0; + hint->len = 0; + hint->flags = 0; + + table->num_hints = count; + + Exit: + *ahint = hint; + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_MASK MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* destroy mask */ + static void + ps_mask_done( PS_Mask mask, + FT_Memory memory ) + { + FT_FREE( mask->bytes ); + mask->num_bits = 0; + mask->max_bits = 0; + mask->end_point = 0; + } + + + /* ensure that a mask can contain "count" bits */ + static FT_Error + ps_mask_ensure( PS_Mask mask, + FT_UInt count, + FT_Memory memory ) + { + FT_UInt old_max = ( mask->max_bits + 7 ) >> 3; + FT_UInt new_max = ( count + 7 ) >> 3; + FT_Error error = PSH_Err_Ok; + + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + if ( !FT_RENEW_ARRAY( mask->bytes, old_max, new_max ) ) + mask->max_bits = new_max * 8; + } + return error; + } + + + /* test a bit value in a given mask */ + static FT_Int + ps_mask_test_bit( PS_Mask mask, + FT_Int idx ) + { + if ( (FT_UInt)idx >= mask->num_bits ) + return 0; + + return mask->bytes[idx >> 3] & ( 0x80 >> ( idx & 7 ) ); + } + + + /* clear a given bit */ + static void + ps_mask_clear_bit( PS_Mask mask, + FT_Int idx ) + { + FT_Byte* p; + + + if ( (FT_UInt)idx >= mask->num_bits ) + return; + + p = mask->bytes + ( idx >> 3 ); + p[0] = (FT_Byte)( p[0] & ~( 0x80 >> ( idx & 7 ) ) ); + } + + + /* set a given bit, possibly grow the mask */ + static FT_Error + ps_mask_set_bit( PS_Mask mask, + FT_Int idx, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + FT_Byte* p; + + + if ( idx < 0 ) + goto Exit; + + if ( (FT_UInt)idx >= mask->num_bits ) + { + error = ps_mask_ensure( mask, idx + 1, memory ); + if ( error ) + goto Exit; + + mask->num_bits = idx + 1; + } + + p = mask->bytes + ( idx >> 3 ); + p[0] = (FT_Byte)( p[0] | ( 0x80 >> ( idx & 7 ) ) ); + + Exit: + return error; + } + + + /* destroy mask table */ + static void + ps_mask_table_done( PS_Mask_Table table, + FT_Memory memory ) + { + FT_UInt count = table->max_masks; + PS_Mask mask = table->masks; + + + for ( ; count > 0; count--, mask++ ) + ps_mask_done( mask, memory ); + + FT_FREE( table->masks ); + table->num_masks = 0; + table->max_masks = 0; + } + + + /* ensure that a mask table can contain "count" masks */ + static FT_Error + ps_mask_table_ensure( PS_Mask_Table table, + FT_UInt count, + FT_Memory memory ) + { + FT_UInt old_max = table->max_masks; + FT_UInt new_max = count; + FT_Error error = PSH_Err_Ok; + + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + if ( !FT_RENEW_ARRAY( table->masks, old_max, new_max ) ) + table->max_masks = new_max; + } + return error; + } + + + /* allocate a new mask in a table */ + static FT_Error + ps_mask_table_alloc( PS_Mask_Table table, + FT_Memory memory, + PS_Mask *amask ) + { + FT_UInt count; + FT_Error error = PSH_Err_Ok; + PS_Mask mask = 0; + + + count = table->num_masks; + count++; + + if ( count > table->max_masks ) + { + error = ps_mask_table_ensure( table, count, memory ); + if ( error ) + goto Exit; + } + + mask = table->masks + count - 1; + mask->num_bits = 0; + mask->end_point = 0; + table->num_masks = count; + + Exit: + *amask = mask; + return error; + } + + + /* return last hint mask in a table, create one if the table is empty */ + static FT_Error + ps_mask_table_last( PS_Mask_Table table, + FT_Memory memory, + PS_Mask *amask ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt count; + PS_Mask mask; + + + count = table->num_masks; + if ( count == 0 ) + { + error = ps_mask_table_alloc( table, memory, &mask ); + if ( error ) + goto Exit; + } + else + mask = table->masks + count - 1; + + Exit: + *amask = mask; + return error; + } + + + /* set a new mask to a given bit range */ + static FT_Error + ps_mask_table_set_bits( PS_Mask_Table table, + const FT_Byte* source, + FT_UInt bit_pos, + FT_UInt bit_count, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + PS_Mask mask; + + + error = ps_mask_table_last( table, memory, &mask ); + if ( error ) + goto Exit; + + error = ps_mask_ensure( mask, bit_count, memory ); + if ( error ) + goto Exit; + + mask->num_bits = bit_count; + + /* now, copy bits */ + { + FT_Byte* read = (FT_Byte*)source + ( bit_pos >> 3 ); + FT_Int rmask = 0x80 >> ( bit_pos & 7 ); + FT_Byte* write = mask->bytes; + FT_Int wmask = 0x80; + FT_Int val; + + + for ( ; bit_count > 0; bit_count-- ) + { + val = write[0] & ~wmask; + + if ( read[0] & rmask ) + val |= wmask; + + write[0] = (FT_Byte)val; + + rmask >>= 1; + if ( rmask == 0 ) + { + read++; + rmask = 0x80; + } + + wmask >>= 1; + if ( wmask == 0 ) + { + write++; + wmask = 0x80; + } + } + } + + Exit: + return error; + } + + + /* test whether two masks in a table intersect */ + static FT_Int + ps_mask_table_test_intersect( PS_Mask_Table table, + FT_Int index1, + FT_Int index2 ) + { + PS_Mask mask1 = table->masks + index1; + PS_Mask mask2 = table->masks + index2; + FT_Byte* p1 = mask1->bytes; + FT_Byte* p2 = mask2->bytes; + FT_UInt count1 = mask1->num_bits; + FT_UInt count2 = mask2->num_bits; + FT_UInt count; + + + count = ( count1 <= count2 ) ? count1 : count2; + for ( ; count >= 8; count -= 8 ) + { + if ( p1[0] & p2[0] ) + return 1; + + p1++; + p2++; + } + + if ( count == 0 ) + return 0; + + return ( p1[0] & p2[0] ) & ~( 0xFF >> count ); + } + + + /* merge two masks, used by ps_mask_table_merge_all */ + static FT_Error + ps_mask_table_merge( PS_Mask_Table table, + FT_Int index1, + FT_Int index2, + FT_Memory memory ) + { + FT_UInt temp; + FT_Error error = PSH_Err_Ok; + + + /* swap index1 and index2 so that index1 < index2 */ + if ( index1 > index2 ) + { + temp = index1; + index1 = index2; + index2 = temp; + } + + if ( index1 < index2 && index1 >= 0 && index2 < (FT_Int)table->num_masks ) + { + /* we need to merge the bitsets of index1 and index2 with a */ + /* simple union */ + PS_Mask mask1 = table->masks + index1; + PS_Mask mask2 = table->masks + index2; + FT_UInt count1 = mask1->num_bits; + FT_UInt count2 = mask2->num_bits; + FT_Int delta; + + + if ( count2 > 0 ) + { + FT_UInt pos; + FT_Byte* read; + FT_Byte* write; + + + /* if "count2" is greater than "count1", we need to grow the */ + /* first bitset, and clear the highest bits */ + if ( count2 > count1 ) + { + error = ps_mask_ensure( mask1, count2, memory ); + if ( error ) + goto Exit; + + for ( pos = count1; pos < count2; pos++ ) + ps_mask_clear_bit( mask1, pos ); + } + + /* merge (unite) the bitsets */ + read = mask2->bytes; + write = mask1->bytes; + pos = (FT_UInt)( ( count2 + 7 ) >> 3 ); + + for ( ; pos > 0; pos-- ) + { + write[0] = (FT_Byte)( write[0] | read[0] ); + write++; + read++; + } + } + + /* Now, remove "mask2" from the list. We need to keep the masks */ + /* sorted in order of importance, so move table elements. */ + mask2->num_bits = 0; + mask2->end_point = 0; + + delta = table->num_masks - 1 - index2; /* number of masks to move */ + if ( delta > 0 ) + { + /* move to end of table for reuse */ + PS_MaskRec dummy = *mask2; + + + ft_memmove( mask2, mask2 + 1, delta * sizeof ( PS_MaskRec ) ); + + mask2[delta] = dummy; + } + + table->num_masks--; + } + else + FT_TRACE0(( "ps_mask_table_merge: ignoring invalid indices (%d,%d)\n", + index1, index2 )); + + Exit: + return error; + } + + + /* Try to merge all masks in a given table. This is used to merge */ + /* all counter masks into independent counter "paths". */ + /* */ + static FT_Error + ps_mask_table_merge_all( PS_Mask_Table table, + FT_Memory memory ) + { + FT_Int index1, index2; + FT_Error error = PSH_Err_Ok; + + + for ( index1 = table->num_masks - 1; index1 > 0; index1-- ) + { + for ( index2 = index1 - 1; index2 >= 0; index2-- ) + { + if ( ps_mask_table_test_intersect( table, index1, index2 ) ) + { + error = ps_mask_table_merge( table, index2, index1, memory ); + if ( error ) + goto Exit; + + break; + } + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_DIMENSION MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* finalize a given dimension */ + static void + ps_dimension_done( PS_Dimension dimension, + FT_Memory memory ) + { + ps_mask_table_done( &dimension->counters, memory ); + ps_mask_table_done( &dimension->masks, memory ); + ps_hint_table_done( &dimension->hints, memory ); + } + + + /* initialize a given dimension */ + static void + ps_dimension_init( PS_Dimension dimension ) + { + dimension->hints.num_hints = 0; + dimension->masks.num_masks = 0; + dimension->counters.num_masks = 0; + } + + +#if 0 + + /* set a bit at a given index in the current hint mask */ + static FT_Error + ps_dimension_set_mask_bit( PS_Dimension dim, + FT_UInt idx, + FT_Memory memory ) + { + PS_Mask mask; + FT_Error error = PSH_Err_Ok; + + + /* get last hint mask */ + error = ps_mask_table_last( &dim->masks, memory, &mask ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( mask, idx, memory ); + + Exit: + return error; + } + +#endif + + /* set the end point in a mask, called from "End" & "Reset" methods */ + static void + ps_dimension_end_mask( PS_Dimension dim, + FT_UInt end_point ) + { + FT_UInt count = dim->masks.num_masks; + PS_Mask mask; + + + if ( count > 0 ) + { + mask = dim->masks.masks + count - 1; + mask->end_point = end_point; + } + } + + + /* set the end point in the current mask, then create a new empty one */ + /* (called by "Reset" method) */ + static FT_Error + ps_dimension_reset_mask( PS_Dimension dim, + FT_UInt end_point, + FT_Memory memory ) + { + PS_Mask mask; + + + /* end current mask */ + ps_dimension_end_mask( dim, end_point ); + + /* allocate new one */ + return ps_mask_table_alloc( &dim->masks, memory, &mask ); + } + + + /* set a new mask, called from the "T2Stem" method */ + static FT_Error + ps_dimension_set_mask_bits( PS_Dimension dim, + const FT_Byte* source, + FT_UInt source_pos, + FT_UInt source_bits, + FT_UInt end_point, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + + + /* reset current mask, if any */ + error = ps_dimension_reset_mask( dim, end_point, memory ); + if ( error ) + goto Exit; + + /* set bits in new mask */ + error = ps_mask_table_set_bits( &dim->masks, source, + source_pos, source_bits, memory ); + + Exit: + return error; + } + + + /* add a new single stem (called from "T1Stem" method) */ + static FT_Error + ps_dimension_add_t1stem( PS_Dimension dim, + FT_Int pos, + FT_Int len, + FT_Memory memory, + FT_Int *aindex ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt flags = 0; + + + /* detect ghost stem */ + if ( len < 0 ) + { + flags |= PS_HINT_FLAG_GHOST; + if ( len == -21 ) + { + flags |= PS_HINT_FLAG_BOTTOM; + pos += len; + } + len = 0; + } + + if ( aindex ) + *aindex = -1; + + /* now, lookup stem in the current hints table */ + { + PS_Mask mask; + FT_UInt idx; + FT_UInt max = dim->hints.num_hints; + PS_Hint hint = dim->hints.hints; + + + for ( idx = 0; idx < max; idx++, hint++ ) + { + if ( hint->pos == pos && hint->len == len ) + break; + } + + /* we need to create a new hint in the table */ + if ( idx >= max ) + { + error = ps_hint_table_alloc( &dim->hints, memory, &hint ); + if ( error ) + goto Exit; + + hint->pos = pos; + hint->len = len; + hint->flags = flags; + } + + /* now, store the hint in the current mask */ + error = ps_mask_table_last( &dim->masks, memory, &mask ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( mask, idx, memory ); + if ( error ) + goto Exit; + + if ( aindex ) + *aindex = (FT_Int)idx; + } + + Exit: + return error; + } + + + /* add a "hstem3/vstem3" counter to our dimension table */ + static FT_Error + ps_dimension_add_counter( PS_Dimension dim, + FT_Int hint1, + FT_Int hint2, + FT_Int hint3, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt count = dim->counters.num_masks; + PS_Mask counter = dim->counters.masks; + + + /* try to find an existing counter mask that already uses */ + /* one of these stems here */ + for ( ; count > 0; count--, counter++ ) + { + if ( ps_mask_test_bit( counter, hint1 ) || + ps_mask_test_bit( counter, hint2 ) || + ps_mask_test_bit( counter, hint3 ) ) + break; + } + + /* create a new counter when needed */ + if ( count == 0 ) + { + error = ps_mask_table_alloc( &dim->counters, memory, &counter ); + if ( error ) + goto Exit; + } + + /* now, set the bits for our hints in the counter mask */ + error = ps_mask_set_bit( counter, hint1, memory ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( counter, hint2, memory ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( counter, hint3, memory ); + if ( error ) + goto Exit; + + Exit: + return error; + } + + + /* end of recording session for a given dimension */ + static FT_Error + ps_dimension_end( PS_Dimension dim, + FT_UInt end_point, + FT_Memory memory ) + { + /* end hint mask table */ + ps_dimension_end_mask( dim, end_point ); + + /* merge all counter masks into independent "paths" */ + return ps_mask_table_merge_all( &dim->counters, memory ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_RECORDER MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* destroy hints */ + FT_LOCAL( void ) + ps_hints_done( PS_Hints hints ) + { + FT_Memory memory = hints->memory; + + + ps_dimension_done( &hints->dimension[0], memory ); + ps_dimension_done( &hints->dimension[1], memory ); + + hints->error = PSH_Err_Ok; + hints->memory = 0; + } + + + FT_LOCAL( FT_Error ) + ps_hints_init( PS_Hints hints, + FT_Memory memory ) + { + FT_MEM_ZERO( hints, sizeof ( *hints ) ); + hints->memory = memory; + return PSH_Err_Ok; + } + + + /* initialize a hints for a new session */ + static void + ps_hints_open( PS_Hints hints, + PS_Hint_Type hint_type ) + { + switch ( hint_type ) + { + case PS_HINT_TYPE_1: + case PS_HINT_TYPE_2: + hints->error = PSH_Err_Ok; + hints->hint_type = hint_type; + + ps_dimension_init( &hints->dimension[0] ); + ps_dimension_init( &hints->dimension[1] ); + break; + + default: + hints->error = PSH_Err_Invalid_Argument; + hints->hint_type = hint_type; + + FT_TRACE0(( "ps_hints_open: invalid charstring type\n" )); + break; + } + } + + + /* add one or more stems to the current hints table */ + static void + ps_hints_stem( PS_Hints hints, + FT_Int dimension, + FT_UInt count, + FT_Long* stems ) + { + if ( !hints->error ) + { + /* limit "dimension" to 0..1 */ + if ( dimension < 0 || dimension > 1 ) + { + FT_TRACE0(( "ps_hints_stem: invalid dimension (%d) used\n", + dimension )); + dimension = ( dimension != 0 ); + } + + /* record the stems in the current hints/masks table */ + switch ( hints->hint_type ) + { + case PS_HINT_TYPE_1: /* Type 1 "hstem" or "vstem" operator */ + case PS_HINT_TYPE_2: /* Type 2 "hstem" or "vstem" operator */ + { + PS_Dimension dim = &hints->dimension[dimension]; + + + for ( ; count > 0; count--, stems += 2 ) + { + FT_Error error; + FT_Memory memory = hints->memory; + + + error = ps_dimension_add_t1stem( + dim, (FT_Int)stems[0], (FT_Int)stems[1], + memory, NULL ); + if ( error ) + { + FT_ERROR(( "ps_hints_stem: could not add stem" + " (%d,%d) to hints table\n", stems[0], stems[1] )); + + hints->error = error; + return; + } + } + break; + } + + default: + FT_TRACE0(( "ps_hints_stem: called with invalid hint type (%d)\n", + hints->hint_type )); + break; + } + } + } + + + /* add one Type1 counter stem to the current hints table */ + static void + ps_hints_t1stem3( PS_Hints hints, + FT_Int dimension, + FT_Fixed* stems ) + { + FT_Error error = PSH_Err_Ok; + + + if ( !hints->error ) + { + PS_Dimension dim; + FT_Memory memory = hints->memory; + FT_Int count; + FT_Int idx[3]; + + + /* limit "dimension" to 0..1 */ + if ( dimension < 0 || dimension > 1 ) + { + FT_TRACE0(( "ps_hints_t1stem3: invalid dimension (%d) used\n", + dimension )); + dimension = ( dimension != 0 ); + } + + dim = &hints->dimension[dimension]; + + /* there must be 6 elements in the 'stem' array */ + if ( hints->hint_type == PS_HINT_TYPE_1 ) + { + /* add the three stems to our hints/masks table */ + for ( count = 0; count < 3; count++, stems += 2 ) + { + error = ps_dimension_add_t1stem( dim, + (FT_Int)FIXED_TO_INT( stems[0] ), + (FT_Int)FIXED_TO_INT( stems[1] ), + memory, &idx[count] ); + if ( error ) + goto Fail; + } + + /* now, add the hints to the counters table */ + error = ps_dimension_add_counter( dim, idx[0], idx[1], idx[2], + memory ); + if ( error ) + goto Fail; + } + else + { + FT_ERROR(( "ps_hints_t1stem3: called with invalid hint type\n" )); + error = PSH_Err_Invalid_Argument; + goto Fail; + } + } + + return; + + Fail: + FT_ERROR(( "ps_hints_t1stem3: could not add counter stems to table\n" )); + hints->error = error; + } + + + /* reset hints (only with Type 1 hints) */ + static void + ps_hints_t1reset( PS_Hints hints, + FT_UInt end_point ) + { + FT_Error error = PSH_Err_Ok; + + + if ( !hints->error ) + { + FT_Memory memory = hints->memory; + + + if ( hints->hint_type == PS_HINT_TYPE_1 ) + { + error = ps_dimension_reset_mask( &hints->dimension[0], + end_point, memory ); + if ( error ) + goto Fail; + + error = ps_dimension_reset_mask( &hints->dimension[1], + end_point, memory ); + if ( error ) + goto Fail; + } + else + { + /* invalid hint type */ + error = PSH_Err_Invalid_Argument; + goto Fail; + } + } + return; + + Fail: + hints->error = error; + } + + + /* Type2 "hintmask" operator, add a new hintmask to each direction */ + static void + ps_hints_t2mask( PS_Hints hints, + FT_UInt end_point, + FT_UInt bit_count, + const FT_Byte* bytes ) + { + FT_Error error; + + + if ( !hints->error ) + { + PS_Dimension dim = hints->dimension; + FT_Memory memory = hints->memory; + FT_UInt count1 = dim[0].hints.num_hints; + FT_UInt count2 = dim[1].hints.num_hints; + + + /* check bit count; must be equal to current total hint count */ + if ( bit_count != count1 + count2 ) + { + FT_TRACE0(( "ps_hints_t2mask:" + " called with invalid bitcount %d (instead of %d)\n", + bit_count, count1 + count2 )); + + /* simply ignore the operator */ + return; + } + + /* set-up new horizontal and vertical hint mask now */ + error = ps_dimension_set_mask_bits( &dim[0], bytes, count2, count1, + end_point, memory ); + if ( error ) + goto Fail; + + error = ps_dimension_set_mask_bits( &dim[1], bytes, 0, count2, + end_point, memory ); + if ( error ) + goto Fail; + } + return; + + Fail: + hints->error = error; + } + + + static void + ps_hints_t2counter( PS_Hints hints, + FT_UInt bit_count, + const FT_Byte* bytes ) + { + FT_Error error; + + + if ( !hints->error ) + { + PS_Dimension dim = hints->dimension; + FT_Memory memory = hints->memory; + FT_UInt count1 = dim[0].hints.num_hints; + FT_UInt count2 = dim[1].hints.num_hints; + + + /* check bit count, must be equal to current total hint count */ + if ( bit_count != count1 + count2 ) + { + FT_TRACE0(( "ps_hints_t2counter:" + " called with invalid bitcount %d (instead of %d)\n", + bit_count, count1 + count2 )); + + /* simply ignore the operator */ + return; + } + + /* set-up new horizontal and vertical hint mask now */ + error = ps_dimension_set_mask_bits( &dim[0], bytes, 0, count1, + 0, memory ); + if ( error ) + goto Fail; + + error = ps_dimension_set_mask_bits( &dim[1], bytes, count1, count2, + 0, memory ); + if ( error ) + goto Fail; + } + return; + + Fail: + hints->error = error; + } + + + /* end recording session */ + static FT_Error + ps_hints_close( PS_Hints hints, + FT_UInt end_point ) + { + FT_Error error; + + + error = hints->error; + if ( !error ) + { + FT_Memory memory = hints->memory; + PS_Dimension dim = hints->dimension; + + + error = ps_dimension_end( &dim[0], end_point, memory ); + if ( !error ) + { + error = ps_dimension_end( &dim[1], end_point, memory ); + } + } + +#ifdef DEBUG_HINTER + if ( !error ) + ps_debug_hints = hints; +#endif + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 1 HINTS RECORDING INTERFACE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + t1_hints_open( T1_Hints hints ) + { + ps_hints_open( (PS_Hints)hints, PS_HINT_TYPE_1 ); + } + + static void + t1_hints_stem( T1_Hints hints, + FT_Int dimension, + FT_Fixed* coords ) + { + FT_Pos stems[2]; + + + stems[0] = FIXED_TO_INT( coords[0] ); + stems[1] = FIXED_TO_INT( coords[1] ); + + ps_hints_stem( (PS_Hints)hints, dimension, 1, stems ); + } + + + FT_LOCAL_DEF( void ) + t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ) + { + FT_MEM_ZERO( (char*)funcs, sizeof ( *funcs ) ); + + funcs->open = (T1_Hints_OpenFunc) t1_hints_open; + funcs->close = (T1_Hints_CloseFunc) ps_hints_close; + funcs->stem = (T1_Hints_SetStemFunc) t1_hints_stem; + funcs->stem3 = (T1_Hints_SetStem3Func)ps_hints_t1stem3; + funcs->reset = (T1_Hints_ResetFunc) ps_hints_t1reset; + funcs->apply = (T1_Hints_ApplyFunc) ps_hints_apply; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 2 HINTS RECORDING INTERFACE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + t2_hints_open( T2_Hints hints ) + { + ps_hints_open( (PS_Hints)hints, PS_HINT_TYPE_2 ); + } + + + static void + t2_hints_stems( T2_Hints hints, + FT_Int dimension, + FT_Int count, + FT_Fixed* coords ) + { + FT_Pos stems[32], y, n; + FT_Int total = count; + + + y = 0; + while ( total > 0 ) + { + /* determine number of stems to write */ + count = total; + if ( count > 16 ) + count = 16; + + /* compute integer stem positions in font units */ + for ( n = 0; n < count * 2; n++ ) + { + y += coords[n]; + stems[n] = FIXED_TO_INT( y ); + } + + /* compute lengths */ + for ( n = 0; n < count * 2; n += 2 ) + stems[n + 1] = stems[n + 1] - stems[n]; + + /* add them to the current dimension */ + ps_hints_stem( (PS_Hints)hints, dimension, count, stems ); + + total -= count; + } + } + + + FT_LOCAL_DEF( void ) + t2_hints_funcs_init( T2_Hints_FuncsRec* funcs ) + { + FT_MEM_ZERO( funcs, sizeof ( *funcs ) ); + + funcs->open = (T2_Hints_OpenFunc) t2_hints_open; + funcs->close = (T2_Hints_CloseFunc) ps_hints_close; + funcs->stems = (T2_Hints_StemsFunc) t2_hints_stems; + funcs->hintmask= (T2_Hints_MaskFunc) ps_hints_t2mask; + funcs->counter = (T2_Hints_CounterFunc)ps_hints_t2counter; + funcs->apply = (T2_Hints_ApplyFunc) ps_hints_apply; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.h b/uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.h new file mode 100644 index 000000000..644eb03d1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/pshinter/pshrec.h @@ -0,0 +1,176 @@ +/***************************************************************************/ +/* */ +/* pshrec.h */ +/* */ +/* Postscript (Type1/Type2) hints recorder (specification). */ +/* */ +/* Copyright 2001, 2002, 2003, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /**************************************************************************/ + /* */ + /* The functions defined here are called from the Type 1, CID and CFF */ + /* font drivers to record the hints of a given character/glyph. */ + /* */ + /* The hints are recorded in a unified format, and are later processed */ + /* by the `optimizer' and `fitter' to adjust the outlines to the pixel */ + /* grid. */ + /* */ + /**************************************************************************/ + + +#ifndef __PSHREC_H__ +#define __PSHREC_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_HINTS_H +#include "pshglob.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLYPH HINTS RECORDER INTERNALS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* handle to hint record */ + typedef struct PS_HintRec_* PS_Hint; + + /* hint types */ + typedef enum PS_Hint_Type_ + { + PS_HINT_TYPE_1 = 1, + PS_HINT_TYPE_2 = 2 + + } PS_Hint_Type; + + + /* hint flags */ + typedef enum PS_Hint_Flags_ + { + PS_HINT_FLAG_GHOST = 1, + PS_HINT_FLAG_BOTTOM = 2 + + } PS_Hint_Flags; + + + /* hint descriptor */ + typedef struct PS_HintRec_ + { + FT_Int pos; + FT_Int len; + FT_UInt flags; + + } PS_HintRec; + + +#define ps_hint_is_active( x ) ( (x)->flags & PS_HINT_FLAG_ACTIVE ) +#define ps_hint_is_ghost( x ) ( (x)->flags & PS_HINT_FLAG_GHOST ) +#define ps_hint_is_bottom( x ) ( (x)->flags & PS_HINT_FLAG_BOTTOM ) + + + /* hints table descriptor */ + typedef struct PS_Hint_TableRec_ + { + FT_UInt num_hints; + FT_UInt max_hints; + PS_Hint hints; + + } PS_Hint_TableRec, *PS_Hint_Table; + + + /* hint and counter mask descriptor */ + typedef struct PS_MaskRec_ + { + FT_UInt num_bits; + FT_UInt max_bits; + FT_Byte* bytes; + FT_UInt end_point; + + } PS_MaskRec, *PS_Mask; + + + /* masks and counters table descriptor */ + typedef struct PS_Mask_TableRec_ + { + FT_UInt num_masks; + FT_UInt max_masks; + PS_Mask masks; + + } PS_Mask_TableRec, *PS_Mask_Table; + + + /* dimension-specific hints descriptor */ + typedef struct PS_DimensionRec_ + { + PS_Hint_TableRec hints; + PS_Mask_TableRec masks; + PS_Mask_TableRec counters; + + } PS_DimensionRec, *PS_Dimension; + + + /* glyph hints descriptor */ + /* dimension 0 => X coordinates + vertical hints/stems */ + /* dimension 1 => Y coordinates + horizontal hints/stems */ + typedef struct PS_HintsRec_ + { + FT_Memory memory; + FT_Error error; + FT_UInt32 magic; + PS_Hint_Type hint_type; + PS_DimensionRec dimension[2]; + + } PS_HintsRec, *PS_Hints; + + /* */ + + /* initialize hints recorder */ + FT_LOCAL( FT_Error ) + ps_hints_init( PS_Hints hints, + FT_Memory memory ); + + /* finalize hints recorder */ + FT_LOCAL( void ) + ps_hints_done( PS_Hints hints ); + + /* initialize Type1 hints recorder interface */ + FT_LOCAL( void ) + t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ); + + /* initialize Type2 hints recorder interface */ + FT_LOCAL( void ) + t2_hints_funcs_init( T2_Hints_FuncsRec* funcs ); + + +#ifdef DEBUG_HINTER + extern PS_Hints ps_debug_hints; + extern int ps_debug_no_horz_hints; + extern int ps_debug_no_vert_hints; +#endif + + /* */ + + +FT_END_HEADER + + +#endif /* __PS_HINTER_RECORD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/psmodule.c b/uppsrc/plugin/FT_fontsys/src/psnames/psmodule.c new file mode 100644 index 000000000..0d8b9dcea --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/psmodule.c @@ -0,0 +1,597 @@ +/***************************************************************************/ +/* */ +/* psmodule.c */ +/* */ +/* PSNames module implementation (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + +#include "psmodule.h" +#include "pstables.h" + +#include "psnamerr.h" +#include "pspic.h" + + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + +#define VARIANT_BIT 0x80000000UL +#define BASE_GLYPH( code ) ( (FT_UInt32)( (code) & ~VARIANT_BIT ) ) + + + /* Return the Unicode value corresponding to a given glyph. Note that */ + /* we do deal with glyph variants by detecting a non-initial dot in */ + /* the name, as in `A.swash' or `e.final'; in this case, the */ + /* VARIANT_BIT is set in the return value. */ + /* */ + static FT_UInt32 + ps_unicode_value( const char* glyph_name ) + { + /* If the name begins with `uni', then the glyph name may be a */ + /* hard-coded unicode character code. */ + if ( glyph_name[0] == 'u' && + glyph_name[1] == 'n' && + glyph_name[2] == 'i' ) + { + /* determine whether the next four characters following are */ + /* hexadecimal. */ + + /* XXX: Add code to deal with ligatures, i.e. glyph names like */ + /* `uniXXXXYYYYZZZZ'... */ + + FT_Int count; + FT_UInt32 value = 0; + const char* p = glyph_name + 3; + + + for ( count = 4; count > 0; count--, p++ ) + { + char c = *p; + unsigned int d; + + + d = (unsigned char)c - '0'; + if ( d >= 10 ) + { + d = (unsigned char)c - 'A'; + if ( d >= 6 ) + d = 16; + else + d += 10; + } + + /* Exit if a non-uppercase hexadecimal character was found */ + /* -- this also catches character codes below `0' since such */ + /* negative numbers cast to `unsigned int' are far too big. */ + if ( d >= 16 ) + break; + + value = ( value << 4 ) + d; + } + + /* there must be exactly four hex digits */ + if ( count == 0 ) + { + if ( *p == '\0' ) + return value; + if ( *p == '.' ) + return (FT_UInt32)( value | VARIANT_BIT ); + } + } + + /* If the name begins with `u', followed by four to six uppercase */ + /* hexadecimal digits, it is a hard-coded unicode character code. */ + if ( glyph_name[0] == 'u' ) + { + FT_Int count; + FT_UInt32 value = 0; + const char* p = glyph_name + 1; + + + for ( count = 6; count > 0; count--, p++ ) + { + char c = *p; + unsigned int d; + + + d = (unsigned char)c - '0'; + if ( d >= 10 ) + { + d = (unsigned char)c - 'A'; + if ( d >= 6 ) + d = 16; + else + d += 10; + } + + if ( d >= 16 ) + break; + + value = ( value << 4 ) + d; + } + + if ( count <= 2 ) + { + if ( *p == '\0' ) + return value; + if ( *p == '.' ) + return (FT_UInt32)( value | VARIANT_BIT ); + } + } + + /* Look for a non-initial dot in the glyph name in order to */ + /* find variants like `A.swash', `e.final', etc. */ + { + const char* p = glyph_name; + const char* dot = NULL; + + + for ( ; *p; p++ ) + { + if ( *p == '.' && p > glyph_name ) + { + dot = p; + break; + } + } + + /* now look up the glyph in the Adobe Glyph List */ + if ( !dot ) + return (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p ); + else + return (FT_UInt32)( ft_get_adobe_glyph_index( glyph_name, dot ) | + VARIANT_BIT ); + } + } + + + /* ft_qsort callback to sort the unicode map */ + FT_CALLBACK_DEF( int ) + compare_uni_maps( const void* a, + const void* b ) + { + PS_UniMap* map1 = (PS_UniMap*)a; + PS_UniMap* map2 = (PS_UniMap*)b; + FT_UInt32 unicode1 = BASE_GLYPH( map1->unicode ); + FT_UInt32 unicode2 = BASE_GLYPH( map2->unicode ); + + + /* sort base glyphs before glyph variants */ + if ( unicode1 == unicode2 ) + { + if ( map1->unicode > map2->unicode ) + return 1; + else if ( map1->unicode < map2->unicode ) + return -1; + else + return 0; + } + else + { + if ( unicode1 > unicode2 ) + return 1; + else if ( unicode1 < unicode2 ) + return -1; + else + return 0; + } + } + + + /* support for extra glyphs not handled (well) in AGL; */ + /* we add extra mappings for them if necessary */ + +#define EXTRA_GLYPH_LIST_SIZE 10 + + static const FT_UInt32 ft_extra_glyph_unicodes[EXTRA_GLYPH_LIST_SIZE] = + { + /* WGL 4 */ + 0x0394, + 0x03A9, + 0x2215, + 0x00AD, + 0x02C9, + 0x03BC, + 0x2219, + 0x00A0, + /* Romanian */ + 0x021A, + 0x021B + }; + + static const char ft_extra_glyph_names[] = + { + 'D','e','l','t','a',0, + 'O','m','e','g','a',0, + 'f','r','a','c','t','i','o','n',0, + 'h','y','p','h','e','n',0, + 'm','a','c','r','o','n',0, + 'm','u',0, + 'p','e','r','i','o','d','c','e','n','t','e','r','e','d',0, + 's','p','a','c','e',0, + 'T','c','o','m','m','a','a','c','c','e','n','t',0, + 't','c','o','m','m','a','a','c','c','e','n','t',0 + }; + + static const FT_Int + ft_extra_glyph_name_offsets[EXTRA_GLYPH_LIST_SIZE] = + { + 0, + 6, + 12, + 21, + 28, + 35, + 38, + 53, + 59, + 72 + }; + + + static void + ps_check_extra_glyph_name( const char* gname, + FT_UInt glyph, + FT_UInt* extra_glyphs, + FT_UInt *states ) + { + FT_UInt n; + + + for ( n = 0; n < EXTRA_GLYPH_LIST_SIZE; n++ ) + { + if ( ft_strcmp( ft_extra_glyph_names + + ft_extra_glyph_name_offsets[n], gname ) == 0 ) + { + if ( states[n] == 0 ) + { + /* mark this extra glyph as a candidate for the cmap */ + states[n] = 1; + extra_glyphs[n] = glyph; + } + + return; + } + } + } + + + static void + ps_check_extra_glyph_unicode( FT_UInt32 uni_char, + FT_UInt *states ) + { + FT_UInt n; + + + for ( n = 0; n < EXTRA_GLYPH_LIST_SIZE; n++ ) + { + if ( uni_char == ft_extra_glyph_unicodes[n] ) + { + /* disable this extra glyph from being added to the cmap */ + states[n] = 2; + + return; + } + } + } + + + /* Build a table that maps Unicode values to glyph indices. */ + static FT_Error + ps_unicodes_init( FT_Memory memory, + PS_Unicodes table, + FT_UInt num_glyphs, + PS_GetGlyphNameFunc get_glyph_name, + PS_FreeGlyphNameFunc free_glyph_name, + FT_Pointer glyph_data ) + { + FT_Error error; + + FT_UInt extra_glyph_list_states[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; + FT_UInt extra_glyphs[EXTRA_GLYPH_LIST_SIZE]; + + + /* we first allocate the table */ + table->num_maps = 0; + table->maps = 0; + + if ( !FT_NEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) ) + { + FT_UInt n; + FT_UInt count; + PS_UniMap* map; + FT_UInt32 uni_char; + + + map = table->maps; + + for ( n = 0; n < num_glyphs; n++ ) + { + const char* gname = get_glyph_name( glyph_data, n ); + + + if ( gname ) + { + ps_check_extra_glyph_name( gname, n, + extra_glyphs, extra_glyph_list_states ); + uni_char = ps_unicode_value( gname ); + + if ( BASE_GLYPH( uni_char ) != 0 ) + { + ps_check_extra_glyph_unicode( uni_char, + extra_glyph_list_states ); + map->unicode = uni_char; + map->glyph_index = n; + map++; + } + + if ( free_glyph_name ) + free_glyph_name( glyph_data, gname ); + } + } + + for ( n = 0; n < EXTRA_GLYPH_LIST_SIZE; n++ ) + { + if ( extra_glyph_list_states[n] == 1 ) + { + /* This glyph name has an additional representation. */ + /* Add it to the cmap. */ + + map->unicode = ft_extra_glyph_unicodes[n]; + map->glyph_index = extra_glyphs[n]; + map++; + } + } + + /* now compress the table a bit */ + count = (FT_UInt)( map - table->maps ); + + if ( count == 0 ) + { + /* No unicode chars here! */ + FT_FREE( table->maps ); + if ( !error ) + error = PSnames_Err_No_Unicode_Glyph_Name; + } + else + { + /* Reallocate if the number of used entries is much smaller. */ + if ( count < num_glyphs / 2 ) + { + (void)FT_RENEW_ARRAY( table->maps, num_glyphs, count ); + error = PSnames_Err_Ok; + } + + /* Sort the table in increasing order of unicode values, */ + /* taking care of glyph variants. */ + ft_qsort( table->maps, count, sizeof ( PS_UniMap ), + compare_uni_maps ); + } + + table->num_maps = count; + } + + return error; + } + + + static FT_UInt + ps_unicodes_char_index( PS_Unicodes table, + FT_UInt32 unicode ) + { + PS_UniMap *min, *max, *mid, *result = NULL; + + + /* Perform a binary search on the table. */ + + min = table->maps; + max = min + table->num_maps - 1; + + while ( min <= max ) + { + FT_UInt32 base_glyph; + + + mid = min + ( ( max - min ) >> 1 ); + + if ( mid->unicode == unicode ) + { + result = mid; + break; + } + + base_glyph = BASE_GLYPH( mid->unicode ); + + if ( base_glyph == unicode ) + result = mid; /* remember match but continue search for base glyph */ + + if ( min == max ) + break; + + if ( base_glyph < unicode ) + min = mid + 1; + else + max = mid - 1; + } + + if ( result ) + return result->glyph_index; + else + return 0; + } + + + static FT_UInt32 + ps_unicodes_char_next( PS_Unicodes table, + FT_UInt32 *unicode ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *unicode + 1; + + + { + FT_UInt min = 0; + FT_UInt max = table->num_maps; + FT_UInt mid; + PS_UniMap* map; + FT_UInt32 base_glyph; + + + while ( min < max ) + { + mid = min + ( ( max - min ) >> 1 ); + map = table->maps + mid; + + if ( map->unicode == char_code ) + { + result = map->glyph_index; + goto Exit; + } + + base_glyph = BASE_GLYPH( map->unicode ); + + if ( base_glyph == char_code ) + result = map->glyph_index; + + if ( base_glyph < char_code ) + min = mid + 1; + else + max = mid; + } + + if ( result ) + goto Exit; /* we have a variant glyph */ + + /* we didn't find it; check whether we have a map just above it */ + char_code = 0; + + if ( min < table->num_maps ) + { + map = table->maps + min; + result = map->glyph_index; + char_code = BASE_GLYPH( map->unicode ); + } + } + + Exit: + *unicode = char_code; + return result; + } + + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + + + static const char* + ps_get_macintosh_name( FT_UInt name_index ) + { + if ( name_index >= FT_NUM_MAC_NAMES ) + name_index = 0; + + return ft_standard_glyph_names + ft_mac_names[name_index]; + } + + + static const char* + ps_get_standard_strings( FT_UInt sid ) + { + if ( sid >= FT_NUM_SID_NAMES ) + return 0; + + return ft_standard_glyph_names + ft_sid_names[sid]; + } + + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + FT_DEFINE_SERVICE_PSCMAPSREC(pscmaps_interface, + (PS_Unicode_ValueFunc) ps_unicode_value, + (PS_Unicodes_InitFunc) ps_unicodes_init, + (PS_Unicodes_CharIndexFunc)ps_unicodes_char_index, + (PS_Unicodes_CharNextFunc) ps_unicodes_char_next, + + (PS_Macintosh_NameFunc) ps_get_macintosh_name, + (PS_Adobe_Std_StringsFunc) ps_get_standard_strings, + + t1_standard_encoding, + t1_expert_encoding + ) + +#else + + FT_DEFINE_SERVICE_PSCMAPSREC(pscmaps_interface, + 0, + 0, + 0, + 0, + + (PS_Macintosh_NameFunc) ps_get_macintosh_name, + (PS_Adobe_Std_StringsFunc) ps_get_standard_strings, + + t1_standard_encoding, + t1_expert_encoding + ) + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + + + FT_DEFINE_SERVICEDESCREC1(pscmaps_services, + FT_SERVICE_ID_POSTSCRIPT_CMAPS, &FT_PSCMAPS_INTERFACE_GET + ) + + + + + static FT_Pointer + psnames_get_service( FT_Module module, + const char* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( FT_PSCMAPS_SERVICES_GET, service_id ); + } + +#endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + +#ifndef FT_CONFIG_OPTION_POSTSCRIPT_NAMES +#define PUT_PS_NAMES_SERVICE(a) 0 +#else +#define PUT_PS_NAMES_SERVICE(a) a +#endif + + FT_DEFINE_MODULE(psnames_module_class, + + 0, /* this is not a font driver, nor a renderer */ + sizeof ( FT_ModuleRec ), + + "psnames", /* driver name */ + 0x10000L, /* driver version */ + 0x20000L, /* driver requires FreeType 2 or above */ + + PUT_PS_NAMES_SERVICE((void*)&FT_PSCMAPS_INTERFACE_GET), /* module specific interface */ + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) PUT_PS_NAMES_SERVICE(psnames_get_service) + ) + + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/psmodule.h b/uppsrc/plugin/FT_fontsys/src/psnames/psmodule.h new file mode 100644 index 000000000..70e797514 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/psmodule.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* psmodule.h */ +/* */ +/* High-level PSNames module interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSMODULE_H__ +#define __PSMODULE_H__ + + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_MODULE( psnames_module_class ) + + +FT_END_HEADER + +#endif /* __PSMODULE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/psnamerr.h b/uppsrc/plugin/FT_fontsys/src/psnames/psnamerr.h new file mode 100644 index 000000000..ae1541d96 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/psnamerr.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* psnamerr.h */ +/* */ +/* PS names module error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PS names module error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PSNAMERR_H__ +#define __PSNAMERR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX PSnames_Err_ +#define FT_ERR_BASE FT_Mod_Err_PSnames + +#include FT_ERRORS_H + +#endif /* __PSNAMERR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/psnames.c b/uppsrc/plugin/FT_fontsys/src/psnames/psnames.c new file mode 100644 index 000000000..52c19cf6d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/psnames.c @@ -0,0 +1,26 @@ +/***************************************************************************/ +/* */ +/* psnames.c */ +/* */ +/* FreeType PSNames module component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "pspic.c" +#include "psmodule.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/pspic.c b/uppsrc/plugin/FT_fontsys/src/psnames/pspic.c new file mode 100644 index 000000000..141e4b295 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/pspic.c @@ -0,0 +1,79 @@ +/***************************************************************************/ +/* */ +/* pspic.c */ +/* */ +/* The FreeType position independent code services for psnames module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "pspic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from psmodule.c */ + FT_Error FT_Create_Class_pscmaps_services( FT_Library, FT_ServiceDescRec**); + void FT_Destroy_Class_pscmaps_services( FT_Library, FT_ServiceDescRec*); + void FT_Init_Class_pscmaps_interface( FT_Library, FT_Service_PsCMapsRec*); + + void + psnames_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->psnames ) + { + PSModulePIC* container = (PSModulePIC*)pic_container->psnames; + if(container->pscmaps_services) + FT_Destroy_Class_pscmaps_services(library, container->pscmaps_services); + container->pscmaps_services = NULL; + FT_FREE( container ); + pic_container->psnames = NULL; + } + } + + + FT_Error + psnames_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = PSnames_Err_Ok; + PSModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof(*container) ); + pic_container->psnames = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_pscmaps_services(library, &container->pscmaps_services); + if(error) + goto Exit; + FT_Init_Class_pscmaps_interface(library, &container->pscmaps_interface); + +Exit: + if(error) + psnames_module_class_pic_free(library); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/pspic.h b/uppsrc/plugin/FT_fontsys/src/psnames/pspic.h new file mode 100644 index 000000000..75a14fdcb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/pspic.h @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* pspic.h */ +/* */ +/* The FreeType position independent code services for psnames module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSPIC_H__ +#define __PSPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_PSCMAPS_SERVICES_GET pscmaps_services +#define FT_PSCMAPS_INTERFACE_GET pscmaps_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + + typedef struct PSModulePIC_ + { + FT_ServiceDescRec* pscmaps_services; + FT_Service_PsCMapsRec pscmaps_interface; + } PSModulePIC; + +#define GET_PIC(lib) ((PSModulePIC*)((lib)->pic_container.psnames)) +#define FT_PSCMAPS_SERVICES_GET (GET_PIC(library)->pscmaps_services) +#define FT_PSCMAPS_INTERFACE_GET (GET_PIC(library)->pscmaps_interface) + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __PSPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/psnames/pstables.h b/uppsrc/plugin/FT_fontsys/src/psnames/pstables.h new file mode 100644 index 000000000..1521e9c28 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/psnames/pstables.h @@ -0,0 +1,4095 @@ +/***************************************************************************/ +/* */ +/* pstables.h */ +/* */ +/* PostScript glyph names. */ +/* */ +/* Copyright 2005, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* This file has been generated automatically -- do not edit! */ + + + static const char ft_standard_glyph_names[3696] = + { + '.','n','u','l','l', 0, + 'n','o','n','m','a','r','k','i','n','g','r','e','t','u','r','n', 0, + 'n','o','t','e','q','u','a','l', 0, + 'i','n','f','i','n','i','t','y', 0, + 'l','e','s','s','e','q','u','a','l', 0, + 'g','r','e','a','t','e','r','e','q','u','a','l', 0, + 'p','a','r','t','i','a','l','d','i','f','f', 0, + 's','u','m','m','a','t','i','o','n', 0, + 'p','r','o','d','u','c','t', 0, + 'p','i', 0, + 'i','n','t','e','g','r','a','l', 0, + 'O','m','e','g','a', 0, + 'r','a','d','i','c','a','l', 0, + 'a','p','p','r','o','x','e','q','u','a','l', 0, + 'D','e','l','t','a', 0, + 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'B','l','a','c','k', 0, + 'B','o','l','d', 0, + 'B','o','o','k', 0, + 'L','i','g','h','t', 0, + 'M','e','d','i','u','m', 0, + 'R','e','g','u','l','a','r', 0, + 'R','o','m','a','n', 0, + 'S','e','m','i','b','o','l','d', 0, + }; + + +#define FT_NUM_MAC_NAMES 258 + + /* Values are offsets into the `ft_standard_glyph_names' table */ + + static const short ft_mac_names[FT_NUM_MAC_NAMES] = + { + 253, 0, 6, 261, 267, 274, 283, 294, 301, 309, 758, 330, 340, 351, + 360, 365, 371, 378, 385, 391, 396, 400, 404, 410, 415, 420, 424, 430, + 436, 441, 447, 457, 462, 468, 476, 485, 488, 490, 492, 494, 496, 498, + 500, 502, 504, 506, 508, 510, 512, 514, 516, 518, 520, 522, 524, 526, + 528, 530, 532, 534, 536, 538, 540, 552, 562, 575, 587, 979, 608, 610, + 612, 614, 616, 618, 620, 622, 624, 626, 628, 630, 632, 634, 636, 638, + 640, 642, 644, 646, 648, 650, 652, 654, 656, 658, 660, 670, 674, 685, + 1375,1392,1405,1414,1486,1512,1562,1603,1632,1610,1622,1645,1639,1652, + 1661,1690,1668,1680,1697,1726,1704,1716,1733,1740,1769,1747,1759,1776, + 1790,1819,1797,1809, 839,1263, 707, 712, 741, 881, 871,1160,1302,1346, + 1197, 985,1031, 23,1086,1108, 32,1219, 41, 51, 730,1194, 64, 76, + 86, 94, 97,1089,1118, 106,1131,1150, 966, 696,1183, 112, 734, 120, + 132, 783, 930, 945, 138,1385,1398,1529,1115,1157, 832,1079, 770, 916, + 598, 319,1246, 155,1833,1586, 721, 749, 797, 811, 826, 829, 846, 856, + 888, 903, 954,1363,1421,1356,1433,1443,1450,1457,1469,1479,1493,1500, + 163,1522,1543,1550,1572,1134, 991,1002,1008,1015,1021,1040,1045,1053, + 1066,1073,1101,1143,1536,1783,1596,1843,1253,1207,1319,1579,1826,1229, + 1270,1313,1323,1171,1290,1332,1211,1235,1276, 169, 175, 182, 189, 200, + 209, 218, 225, 232, 239, 246 + }; + + +#define FT_NUM_SID_NAMES 391 + + /* Values are offsets into the `ft_standard_glyph_names' table */ + + static const short ft_sid_names[FT_NUM_SID_NAMES] = + { + 253, 261, 267, 274, 283, 294, 301, 309, 319, 330, 340, 351, 360, 365, + 371, 378, 385, 391, 396, 400, 404, 410, 415, 420, 424, 430, 436, 441, + 447, 457, 462, 468, 476, 485, 488, 490, 492, 494, 496, 498, 500, 502, + 504, 506, 508, 510, 512, 514, 516, 518, 520, 522, 524, 526, 528, 530, + 532, 534, 536, 538, 540, 552, 562, 575, 587, 598, 608, 610, 612, 614, + 616, 618, 620, 622, 624, 626, 628, 630, 632, 634, 636, 638, 640, 642, + 644, 646, 648, 650, 652, 654, 656, 658, 660, 670, 674, 685, 696, 707, + 712, 721, 730, 734, 741, 749, 758, 770, 783, 797, 811, 826, 829, 832, + 839, 846, 856, 871, 881, 888, 903, 916, 930, 945, 954, 966, 979, 985, + 991,1002,1008,1015,1021,1031,1040,1045,1053,1066,1073,1079,1086,1089, + 1101,1108,1115,1118,1131,1134,1143,1150,1157,1160,1171,1183,1194,1197, + 1207,1211,1219,1229,1235,1246,1253,1263,1270,1276,1290,1302,1313,1319, + 1323,1332,1346,1356,1363,1375,1385,1392,1398,1405,1414,1421,1433,1443, + 1450,1457,1469,1479,1486,1493,1500,1512,1522,1529,1536,1543,1550,1562, + 1572,1579,1586,1596,1603,1610,1622,1632,1639,1645,1652,1661,1668,1680, + 1690,1697,1704,1716,1726,1733,1740,1747,1759,1769,1776,1783,1790,1797, + 1809,1819,1826,1833,1843,1850,1862,1880,1895,1910,1925,1936,1954,1973, + 1988,2003,2016,2028,2040,2054,2067,2080,2092,2106,2120,2133,2147,2167, + 2182,2196,2206,2216,2229,2239,2249,2259,2269,2279,2289,2299,2309,2319, + 2329,2332,2336,2340,2358,2377,2393,2408,2419,2426,2433,2440,2447,2454, + 2461,2468,2475,2482,2489,2496,2503,2510,2517,2524,2531,2538,2545,2552, + 2559,2566,2573,2580,2587,2594,2601,2615,2625,2632,2643,2659,2672,2684, + 2696,2708,2722,2733,2744,2759,2771,2782,2797,2809,2819,2832,2850,2860, + 2873,2885,2898,2907,2917,2930,2943,2956,2968,2982,2996,3009,3022,3034, + 3046,3060,3073,3086,3098,3112,3126,3139,3152,3167,3182,3196,3208,3220, + 3237,3249,3264,3275,3283,3297,3309,3321,3338,3353,3365,3377,3394,3409, + 3418,3430,3442,3454,3471,3483,3498,3506,3518,3530,3542,3559,3574,3586, + 3597,3612,3620,3628,3636,3644,3650,3655,3660,3666,3673,3681,3687 + }; + + + /* the following are indices into the SID name table */ + static const unsigned short t1_standard_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, + 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110, + 0,111,112,113,114, 0,115,116,117,118,119,120,121,122, 0,123, + 0,124,125,126,127,128,129,130,131, 0,132,133, 0,134,135,136, + 137, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0,138, 0,139, 0, 0, 0, 0,140,141,142,143, 0, 0, 0, 0, + 0,144, 0, 0, 0,145, 0, 0,146,147,148,149, 0, 0, 0, 0 + }; + + + /* the following are indices into the SID name table */ + static const unsigned short t1_expert_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1,229,230, 0,231,232,233,234,235,236,237,238, 13, 14, 15, 99, + 239,240,241,242,243,244,245,246,247,248, 27, 28,249,250,251,252, + 0,253,254,255,256,257, 0, 0, 0,258, 0, 0,259,260,261,262, + 0, 0,263,264,265, 0,266,109,110,267,268,269, 0,270,271,272, + 273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288, + 289,290,291,292,293,294,295,296,297,298,299,300,301,302,303, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0,304,305,306, 0, 0,307,308,309,310,311, 0,312, 0, 0,313, + 0, 0,314,315, 0, 0,316,317,318, 0, 0, 0,158,155,163,319, + 320,321,322,323,324,325, 0, 0,326,150,164,169,327,328,329,330, + 331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346, + 347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362, + 363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378 + }; + + + /* + * This table is a compressed version of the Adobe Glyph List (AGL), + * optimized for efficient searching. It has been generated by the + * `glnames.py' python script located in the `src/tools' directory. + * + * The lookup function to get the Unicode value for a given string + * is defined below the table. + */ + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + static const unsigned char ft_adobe_glyph_list[54791L] = + { + 0, 52, 0,106, 2,167, 3, 63, 4,220, 6,125, 9,143, 10, 23, + 11,137, 12,199, 14,246, 15, 87, 16,233, 17,219, 18,104, 19, 88, + 22,110, 23, 32, 23, 71, 24, 77, 27,156, 29, 73, 31,247, 32,107, + 32,222, 33, 55, 34,154, 35,218, 53, 84, 59,196, 68, 6, 75,183, + 83,178, 88,135, 93,242,101,165,109,185,111, 55,117,254,123, 73, + 130,238,138,206,145, 31,153,182,156,189,163,249,178,221,193, 17, + 197, 99,199,240,204, 27,204,155,210,100, 65,143, 0, 65, 0,140, + 0,175, 0,193, 1, 15, 1,147, 1,233, 1,251, 2, 7, 2, 40, + 2, 57, 2, 82, 2, 91, 2,128, 2,136, 2,154, 69,131, 0,198, + 0,150, 0,158, 0,167,225,227,245,244,101,128, 1,252,237,225, + 227,242,239,110,128, 1,226,243,237,225,236,108,128,247,230,225, + 227,245,244,101,129, 0,193, 0,185,243,237,225,236,108,128,247, + 225,226,242,229,246,101,134, 1, 2, 0,213, 0,221, 0,232, 0, + 243, 0,251, 1, 7,225,227,245,244,101,128, 30,174,227,249,242, + 233,236,236,233, 99,128, 4,208,228,239,244,226,229,236,239,119, + 128, 30,182,231,242,225,246,101,128, 30,176,232,239,239,235,225, + 226,239,246,101,128, 30,178,244,233,236,228,101,128, 30,180, 99, + 4, 1, 25, 1, 32, 1,121, 1,137,225,242,239,110,128, 1,205, + 233,242, 99, 2, 1, 40, 1, 45,236,101,128, 36,182,245,237,230, + 236,229,120,134, 0,194, 1, 66, 1, 74, 1, 85, 1, 93, 1,105, + 1,113,225,227,245,244,101,128, 30,164,228,239,244,226,229,236, + 239,119,128, 30,172,231,242,225,246,101,128, 30,166,232,239,239, + 235,225,226,239,246,101,128, 30,168,243,237,225,236,108,128,247, + 226,244,233,236,228,101,128, 30,170,245,244,101,129,246,201, 1, + 129,243,237,225,236,108,128,247,180,249,242,233,236,236,233, 99, + 128, 4, 16,100, 3, 1,155, 1,165, 1,209,226,236,231,242,225, + 246,101,128, 2, 0,233,229,242,229,243,233,115,131, 0,196, 1, + 181, 1,192, 1,201,227,249,242,233,236,236,233, 99,128, 4,210, + 237,225,227,242,239,110,128, 1,222,243,237,225,236,108,128,247, + 228,239,116, 2, 1,216, 1,224,226,229,236,239,119,128, 30,160, + 237,225,227,242,239,110,128, 1,224,231,242,225,246,101,129, 0, + 192, 1,243,243,237,225,236,108,128,247,224,232,239,239,235,225, + 226,239,246,101,128, 30,162,105, 2, 2, 13, 2, 25,229,227,249, + 242,233,236,236,233, 99,128, 4,212,238,246,229,242,244,229,228, + 226,242,229,246,101,128, 2, 2,236,240,232, 97,129, 3,145, 2, + 49,244,239,238,239,115,128, 3,134,109, 2, 2, 63, 2, 71,225, + 227,242,239,110,128, 1, 0,239,238,239,243,240,225,227,101,128, + 255, 33,239,231,239,238,229,107,128, 1, 4,242,233,238,103,131, + 0,197, 2,104, 2,112, 2,120,225,227,245,244,101,128, 1,250, + 226,229,236,239,119,128, 30, 0,243,237,225,236,108,128,247,229, + 243,237,225,236,108,128,247, 97,244,233,236,228,101,129, 0,195, + 2,146,243,237,225,236,108,128,247,227,249,226,225,242,237,229, + 238,233,225,110,128, 5, 49, 66,137, 0, 66, 2,189, 2,198, 2, + 223, 3, 3, 3, 10, 3, 22, 3, 34, 3, 46, 3, 54,227,233,242, + 227,236,101,128, 36,183,228,239,116, 2, 2,206, 2,215,225,227, + 227,229,238,116,128, 30, 2,226,229,236,239,119,128, 30, 4,101, + 3, 2,231, 2,242, 2,254,227,249,242,233,236,236,233, 99,128, + 4, 17,238,225,242,237,229,238,233,225,110,128, 5, 50,244, 97, + 128, 3,146,232,239,239,107,128, 1,129,236,233,238,229,226,229, + 236,239,119,128, 30, 6,237,239,238,239,243,240,225,227,101,128, + 255, 34,242,229,246,229,243,237,225,236,108,128,246,244,243,237, + 225,236,108,128,247, 98,244,239,240,226,225,114,128, 1,130, 67, + 137, 0, 67, 3, 85, 3,127, 3,193, 3,210, 3,224, 4,171, 4, + 188, 4,200, 4,212, 97, 3, 3, 93, 3,104, 3,111,225,242,237, + 229,238,233,225,110,128, 5, 62,227,245,244,101,128, 1, 6,242, + 239,110,129,246,202, 3,119,243,237,225,236,108,128,246,245, 99, + 3, 3,135, 3,142, 3,171,225,242,239,110,128, 1, 12,229,228, + 233,236,236, 97,130, 0,199, 3,155, 3,163,225,227,245,244,101, + 128, 30, 8,243,237,225,236,108,128,247,231,233,242, 99, 2, 3, + 179, 3,184,236,101,128, 36,184,245,237,230,236,229,120,128, 1, + 8,228,239,116,129, 1, 10, 3,201,225,227,227,229,238,116,128, + 1, 10,229,228,233,236,236,225,243,237,225,236,108,128,247,184, + 104, 4, 3,234, 3,246, 4,161, 4,165,225,225,242,237,229,238, + 233,225,110,128, 5, 73,101, 6, 4, 4, 4, 24, 4, 35, 4,103, + 4,115, 4,136,225,226,235,232,225,243,233,225,238,227,249,242, + 233,236,236,233, 99,128, 4,188,227,249,242,233,236,236,233, 99, + 128, 4, 39,100, 2, 4, 41, 4, 85,229,243,227,229,238,228,229, + 114, 2, 4, 54, 4, 74,225,226,235,232,225,243,233,225,238,227, + 249,242,233,236,236,233, 99,128, 4,190,227,249,242,233,236,236, + 233, 99,128, 4,182,233,229,242,229,243,233,243,227,249,242,233, + 236,236,233, 99,128, 4,244,232,225,242,237,229,238,233,225,110, + 128, 5, 67,235,232,225,235,225,243,243,233,225,238,227,249,242, + 233,236,236,233, 99,128, 4,203,246,229,242,244,233,227,225,236, + 243,244,242,239,235,229,227,249,242,233,236,236,233, 99,128, 4, + 184,105,128, 3,167,239,239,107,128, 1,135,233,242,227,245,237, + 230,236,229,248,243,237,225,236,108,128,246,246,237,239,238,239, + 243,240,225,227,101,128,255, 35,239,225,242,237,229,238,233,225, + 110,128, 5, 81,243,237,225,236,108,128,247, 99, 68,142, 0, 68, + 4,252, 5, 10, 5, 36, 5, 96, 5,121, 5,166, 5,173, 5,231, + 5,244, 6, 0, 6, 12, 6, 28, 6, 48, 6, 57, 90,129, 1,241, + 5, 2,227,225,242,239,110,128, 1,196, 97, 2, 5, 16, 5, 27, + 225,242,237,229,238,233,225,110,128, 5, 52,230,242,233,227,225, + 110,128, 1,137, 99, 4, 5, 46, 5, 53, 5, 62, 5, 89,225,242, + 239,110,128, 1, 14,229,228,233,236,236, 97,128, 30, 16,233,242, + 99, 2, 5, 70, 5, 75,236,101,128, 36,185,245,237,230,236,229, + 248,226,229,236,239,119,128, 30, 18,242,239,225,116,128, 1, 16, + 228,239,116, 2, 5,104, 5,113,225,227,227,229,238,116,128, 30, + 10,226,229,236,239,119,128, 30, 12,101, 3, 5,129, 5,140, 5, + 150,227,249,242,233,236,236,233, 99,128, 4, 20,233,227,239,240, + 244,233, 99,128, 3,238,236,244, 97,129, 34, 6, 5,158,231,242, + 229,229,107,128, 3,148,232,239,239,107,128, 1,138,105, 2, 5, + 179, 5,218,229,242,229,243,233,115,131,246,203, 5,194, 5,202, + 5,210,193,227,245,244,101,128,246,204,199,242,225,246,101,128, + 246,205,243,237,225,236,108,128,247,168,231,225,237,237,225,231, + 242,229,229,107,128, 3,220,234,229,227,249,242,233,236,236,233, + 99,128, 4, 2,236,233,238,229,226,229,236,239,119,128, 30, 14, + 237,239,238,239,243,240,225,227,101,128,255, 36,239,244,225,227, + 227,229,238,244,243,237,225,236,108,128,246,247,115, 2, 6, 34, + 6, 41,236,225,243,104,128, 1, 16,237,225,236,108,128,247,100, + 244,239,240,226,225,114,128, 1,139,122,131, 1,242, 6, 67, 6, + 75, 6,112,227,225,242,239,110,128, 1,197,101, 2, 6, 81, 6, + 101,225,226,235,232,225,243,233,225,238,227,249,242,233,236,236, + 233, 99,128, 4,224,227,249,242,233,236,236,233, 99,128, 4, 5, + 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152,243,245,240,229,242,233,239,114,128, 2,183,244,245,242,238, + 229,100,128, 2,141,249,238,110,128, 1,191,120,137, 0,120,204, + 49,204, 60,204, 71,204, 80,204,107,204,120,204,124,204,136,204, + 144,225,226,239,246,229,227,237, 98,128, 3, 61,226,239,240,239, + 237,239,230,111,128, 49, 18,227,233,242,227,236,101,128, 36,231, + 100, 2,204, 86,204, 96,233,229,242,229,243,233,115,128, 30,141, + 239,244,225,227,227,229,238,116,128, 30,139,229,232,225,242,237, + 229,238,233,225,110,128, 5,109,105,128, 3,190,237,239,238,239, + 243,240,225,227,101,128,255, 88,240,225,242,229,110,128, 36,179, + 243,245,240,229,242,233,239,114,128, 2,227,121,143, 0,121,204, + 189,205,148,205,171,205,211,207,177,207,185,207,202,208, 10,208, + 22,209, 19,209, 59,209, 71,209, 82,209,103,210, 76, 97, 11,204, + 213,204,225,204,235,204,242,204,249,205, 3,205, 28,205, 39,205, + 77,205, 90,205,136,225,228,239,243,241,245,225,242,101,128, 51, + 78,226,229,238,231,225,236,105,128, 9,175,227,245,244,101,128, + 0,253,228,229,246, 97,128, 9, 47,229,235,239,242,229,225,110, + 128, 49, 82,231,117, 2,205, 10,205, 19,234,225,242,225,244,105, + 128, 10,175,242,237,245,235,232,105,128, 10, 47,232,233,242,225, + 231,225,238, 97,128, 48,132,107, 2,205, 45,205, 69,225,244,225, + 235,225,238, 97,129, 48,228,205, 57,232,225,236,230,247,233,228, + 244,104,128,255,148,239,242,229,225,110,128, 49, 81,237,225,235, + 235,225,238,244,232,225,105,128, 14, 78,243,237,225,236,108, 2, + 205,100,205,111,232,233,242,225,231,225,238, 97,128, 48,131,235, + 225,244,225,235,225,238, 97,129, 48,227,205,124,232,225,236,230, + 247,233,228,244,104,128,255,108,244,227,249,242,233,236,236,233, + 99,128, 4, 99,227,233,242, 99, 2,205,157,205,162,236,101,128, + 36,232,245,237,230,236,229,120,128, 1,119,100, 2,205,177,205, + 187,233,229,242,229,243,233,115,128, 0,255,239,116, 2,205,194, + 205,203,225,227,227,229,238,116,128, 30,143,226,229,236,239,119, + 128, 30,245,101, 7,205,227,206,235,206,244,207, 6,207, 38,207, + 114,207,165,104, 8,205,245,205,254,206, 32,206, 46,206,119,206, + 135,206,194,206,212,225,242,225,226,233, 99,128, 6, 74,226,225, + 242,242,229,101, 2,206, 9,206, 18,225,242,225,226,233, 99,128, + 6,210,230,233,238,225,236,225,242,225,226,233, 99,128,251,175, + 230,233,238,225,236,225,242,225,226,233, 99,128,254,242,232,225, + 237,250,225,225,226,239,246,101, 4,206, 65,206, 74,206, 88,206, + 104,225,242,225,226,233, 99,128, 6, 38,230,233,238,225,236,225, + 242,225,226,233, 99,128,254,138,233,238,233,244,233,225,236,225, + 242,225,226,233, 99,128,254,139,237,229,228,233,225,236,225,242, + 225,226,233, 99,128,254,140,233,238,233,244,233,225,236,225,242, + 225,226,233, 99,128,254,243,237,101, 2,206,142,206,155,228,233, + 225,236,225,242,225,226,233, 99,128,254,244,229,237,105, 2,206, + 163,206,178,238,233,244,233,225,236,225,242,225,226,233, 99,128, + 252,221,243,239,236,225,244,229,228,225,242,225,226,233, 99,128, + 252, 88,238,239,239,238,230,233,238,225,236,225,242,225,226,233, + 99,128,252,148,244,232,242,229,229,228,239,244,243,226,229,236, + 239,247,225,242,225,226,233, 99,128, 6,209,235,239,242,229,225, + 110,128, 49, 86,110,129, 0,165,206,250,237,239,238,239,243,240, + 225,227,101,128,255,229,111, 2,207, 12,207, 21,235,239,242,229, + 225,110,128, 49, 85,242,233,238,232,233,229,245,232,235,239,242, + 229,225,110,128, 49,134,114, 3,207, 46,207, 82,207, 94,225,232, + 226,229,238,249,239,237,111, 2,207, 60,207, 69,232,229,226,242, + 229,119,128, 5,170,236,229,230,244,232,229,226,242,229,119,128, + 5,170,233,227,249,242,233,236,236,233, 99,128, 4, 75,245,228, + 233,229,242,229,243,233,243,227,249,242,233,236,236,233, 99,128, + 4,249,243,233,229,245,238,103, 3,207,127,207,136,207,152,235, + 239,242,229,225,110,128, 49,129,240,225,238,243,233,239,243,235, + 239,242,229,225,110,128, 49,131,243,233,239,243,235,239,242,229, + 225,110,128, 49,130,244,233,246,232,229,226,242,229,119,128, 5, + 154,231,242,225,246,101,128, 30,243,232,239,239,107,129, 1,180, + 207,194,225,226,239,246,101,128, 30,247,105, 5,207,214,207,225, + 207,236,207,245,207,253,225,242,237,229,238,233,225,110,128, 5, + 117,227,249,242,233,236,236,233, 99,128, 4, 87,235,239,242,229, + 225,110,128, 49, 98,238,249,225,238,103,128, 38, 47,247,238,225, + 242,237,229,238,233,225,110,128, 5,130,237,239,238,239,243,240, + 225,227,101,128,255, 89,111, 7,208, 38,208,108,208,119,208,129, + 208,167,208,213,208,222,100,131, 5,217,208, 48,208, 68,208, 77, + 228,225,231,229,243,104,129,251, 57,208, 59,232,229,226,242,229, + 119,128,251, 57,232,229,226,242,229,119,128, 5,217,249,239,100, + 2,208, 85,208, 94,232,229,226,242,229,119,128, 5,242,240,225, + 244,225,232,232,229,226,242,229,119,128,251, 31,232,233,242,225, + 231,225,238, 97,128, 48,136,233,235,239,242,229,225,110,128, 49, + 137,107, 2,208,135,208,159,225,244,225,235,225,238, 97,129, 48, + 232,208,147,232,225,236,230,247,233,228,244,104,128,255,150,239, + 242,229,225,110,128, 49, 91,243,237,225,236,108, 2,208,177,208, + 188,232,233,242,225,231,225,238, 97,128, 48,135,235,225,244,225, + 235,225,238, 97,129, 48,231,208,201,232,225,236,230,247,233,228, + 244,104,128,255,110,244,231,242,229,229,107,128, 3,243,121, 2, + 208,228,209, 9, 97, 2,208,234,208,244,229,235,239,242,229,225, + 110,128, 49,136,107, 2,208,250,209, 2,239,242,229,225,110,128, + 49,135,244,232,225,105,128, 14, 34,233,238,231,244,232,225,105, + 128, 14, 13,112, 2,209, 25,209, 32,225,242,229,110,128, 36,180, + 239,231,229,231,242,225,237,237,229,238,105,129, 3,122,209, 48, + 231,242,229,229,235,227,237, 98,128, 3, 69,114,129, 1,166,209, + 65,233,238,103,128, 30,153,243,245,240,229,242,233,239,114,128, + 2,184,116, 2,209, 88,209, 95,233,236,228,101,128, 30,249,245, + 242,238,229,100,128, 2,142,117, 5,209,115,209,126,209,136,209, + 174,210, 50,232,233,242,225,231,225,238, 97,128, 48,134,233,235, + 239,242,229,225,110,128, 49,140,107, 2,209,142,209,166,225,244, + 225,235,225,238, 97,129, 48,230,209,154,232,225,236,230,247,233, + 228,244,104,128,255,149,239,242,229,225,110,128, 49, 96,115, 3, + 209,182,209,220,210, 5,226,233,103, 2,209,190,209,201,227,249, + 242,233,236,236,233, 99,128, 4,107,233,239,244,233,230,233,229, + 228,227,249,242,233,236,236,233, 99,128, 4,109,236,233,244,244, + 236,101, 2,209,231,209,242,227,249,242,233,236,236,233, 99,128, + 4,103,233,239,244,233,230,233,229,228,227,249,242,233,236,236, + 233, 99,128, 4,105,237,225,236,108, 2,210, 14,210, 25,232,233, + 242,225,231,225,238, 97,128, 48,133,235,225,244,225,235,225,238, + 97,129, 48,229,210, 38,232,225,236,230,247,233,228,244,104,128, + 255,109,249,101, 2,210, 57,210, 66,235,239,242,229,225,110,128, + 49,139,239,235,239,242,229,225,110,128, 49,138,249, 97, 2,210, + 83,210, 93,226,229,238,231,225,236,105,128, 9,223,228,229,246, + 97,128, 9, 95,122,142, 0,122,210,132,211,140,211,151,211,194, + 211,221,213, 0,213,108,213,150,213,162,213,174,213,202,213,210, + 213,226,213,235, 97, 10,210,154,210,165,210,172,210,179,210,190, + 211, 12,211, 42,211, 53,211, 89,211,101,225,242,237,229,238,233, + 225,110,128, 5,102,227,245,244,101,128, 1,122,228,229,246, 97, + 128, 9, 91,231,245,242,237,245,235,232,105,128, 10, 91,104, 4, + 210,200,210,209,210,223,210,253,225,242,225,226,233, 99,128, 6, + 56,230,233,238,225,236,225,242,225,226,233, 99,128,254,198,105, + 2,210,229,210,244,238,233,244,233,225,236,225,242,225,226,233, + 99,128,254,199,242,225,231,225,238, 97,128, 48, 86,237,229,228, + 233,225,236,225,242,225,226,233, 99,128,254,200,233,110, 2,211, + 19,211, 28,225,242,225,226,233, 99,128, 6, 50,230,233,238,225, + 236,225,242,225,226,233, 99,128,254,176,235,225,244,225,235,225, + 238, 97,128, 48,182,241,229,102, 2,211, 61,211, 75,231,225,228, + 239,236,232,229,226,242,229,119,128, 5,149,241,225,244,225,238, + 232,229,226,242,229,119,128, 5,148,242,241,225,232,229,226,242, + 229,119,128, 5,152,249,233,110,130, 5,214,211,111,211,131,228, + 225,231,229,243,104,129,251, 54,211,122,232,229,226,242,229,119, + 128,251, 54,232,229,226,242,229,119,128, 5,214,226,239,240,239, + 237,239,230,111,128, 49, 23, 99, 3,211,159,211,166,211,188,225, + 242,239,110,128, 1,126,233,242, 99, 2,211,174,211,179,236,101, + 128, 36,233,245,237,230,236,229,120,128, 30,145,245,242,108,128, + 2,145,228,239,116,130, 1,124,211,204,211,213,225,227,227,229, + 238,116,128, 1,124,226,229,236,239,119,128, 30,147,101, 6,211, + 235,211,246,212, 33,212, 44,212, 55,212,251,227,249,242,233,236, + 236,233, 99,128, 4, 55,100, 2,211,252,212, 15,229,243,227,229, + 238,228,229,242,227,249,242,233,236,236,233, 99,128, 4,153,233, + 229,242,229,243,233,243,227,249,242,233,236,236,233, 99,128, 4, + 223,232,233,242,225,231,225,238, 97,128, 48, 92,235,225,244,225, + 235,225,238, 97,128, 48,188,242,111,140, 0, 48,212, 84,212, 93, + 212,103,212,110,212,135,212,148,212,159,212,171,212,182,212,192, + 212,203,212,210,225,242,225,226,233, 99,128, 6, 96,226,229,238, + 231,225,236,105,128, 9,230,228,229,246, 97,128, 9,102,231,117, + 2,212,117,212,126,234,225,242,225,244,105,128, 10,230,242,237, + 245,235,232,105,128, 10,102,232,225,227,235,225,242,225,226,233, + 99,128, 6, 96,233,238,230,229,242,233,239,114,128, 32,128,237, + 239,238,239,243,240,225,227,101,128,255, 16,239,236,228,243,244, + 249,236,101,128,247, 48,240,229,242,243,233,225,110,128, 6,240, + 243,245,240,229,242,233,239,114,128, 32,112,244,232,225,105,128, + 14, 80,247,233,228,244,104, 3,212,222,212,231,212,243,234,239, + 233,238,229,114,128,254,255,238,239,238,234,239,233,238,229,114, + 128, 32, 12,243,240,225,227,101,128, 32, 11,244, 97,128, 3,182, + 104, 2,213, 6,213, 17,226,239,240,239,237,239,230,111,128, 49, + 19,101, 4,213, 27,213, 38,213, 54,213, 65,225,242,237,229,238, + 233,225,110,128, 5,106,226,242,229,246,229,227,249,242,233,236, + 236,233, 99,128, 4,194,227,249,242,233,236,236,233, 99,128, 4, + 54,100, 2,213, 71,213, 90,229,243,227,229,238,228,229,242,227, + 249,242,233,236,236,233, 99,128, 4,151,233,229,242,229,243,233, + 243,227,249,242,233,236,236,233, 99,128, 4,221,105, 3,213,116, + 213,127,213,138,232,233,242,225,231,225,238, 97,128, 48, 88,235, + 225,244,225,235,225,238, 97,128, 48,184,238,239,242,232,229,226, + 242,229,119,128, 5,174,236,233,238,229,226,229,236,239,119,128, + 30,149,237,239,238,239,243,240,225,227,101,128,255, 90,111, 2, + 213,180,213,191,232,233,242,225,231,225,238, 97,128, 48, 94,235, + 225,244,225,235,225,238, 97,128, 48,190,240,225,242,229,110,128, + 36,181,242,229,244,242,239,230,236,229,248,232,239,239,107,128, + 2,144,243,244,242,239,235,101,128, 1,182,117, 2,213,241,213, + 252,232,233,242,225,231,225,238, 97,128, 48, 90,235,225,244,225, + 235,225,238, 97,128, 48,186 + }; + + + /* + * This function searches the compressed table efficiently. + */ + static unsigned long + ft_get_adobe_glyph_index( const char* name, + const char* limit ) + { + int c = 0; + int count, min, max; + const unsigned char* p = ft_adobe_glyph_list; + + + if ( name == 0 || name >= limit ) + goto NotFound; + + c = *name++; + count = p[1]; + p += 2; + + min = 0; + max = count; + + while ( min < max ) + { + int mid = ( min + max ) >> 1; + const unsigned char* q = p + mid * 2; + int c2; + + + q = ft_adobe_glyph_list + ( ( (int)q[0] << 8 ) | q[1] ); + + c2 = q[0] & 127; + if ( c2 == c ) + { + p = q; + goto Found; + } + if ( c2 < c ) + min = mid + 1; + else + max = mid; + } + goto NotFound; + + Found: + for (;;) + { + /* assert (*p & 127) == c */ + + if ( name >= limit ) + { + if ( (p[0] & 128) == 0 && + (p[1] & 128) != 0 ) + return (unsigned long)( ( (int)p[2] << 8 ) | p[3] ); + + goto NotFound; + } + c = *name++; + if ( p[0] & 128 ) + { + p++; + if ( c != (p[0] & 127) ) + goto NotFound; + + continue; + } + + p++; + count = p[0] & 127; + if ( p[0] & 128 ) + p += 2; + + p++; + + for ( ; count > 0; count--, p += 2 ) + { + int offset = ( (int)p[0] << 8 ) | p[1]; + const unsigned char* q = ft_adobe_glyph_list + offset; + + if ( c == ( q[0] & 127 ) ) + { + p = q; + goto NextIter; + } + } + goto NotFound; + + NextIter: + ; + } + + NotFound: + return 0; + } + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/ftmisc.h b/uppsrc/plugin/FT_fontsys/src/raster/ftmisc.h new file mode 100644 index 000000000..7773924fe --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/ftmisc.h @@ -0,0 +1,121 @@ +/***************************************************************************/ +/* */ +/* ftmisc.h */ +/* */ +/* Miscellaneous macros for stand-alone rasterizer (specification */ +/* only). */ +/* */ +/* Copyright 2005, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /***************************************************/ + /* */ + /* This file is *not* portable! You have to adapt */ + /* its definitions to your platform. */ + /* */ + /***************************************************/ + +#ifndef __FTMISC_H__ +#define __FTMISC_H__ + + + /* memset */ +#include FT_CONFIG_STANDARD_LIBRARY_H + +#define FT_BEGIN_HEADER +#define FT_END_HEADER + +#define FT_LOCAL_DEF( x ) static x + + + /* from include/freetype2/fttypes.h */ + + typedef unsigned char FT_Byte; + typedef signed int FT_Int; + typedef unsigned int FT_UInt; + typedef signed long FT_Long; + typedef unsigned long FT_ULong; + typedef signed long FT_F26Dot6; + typedef int FT_Error; + +#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ + ( ( (FT_ULong)_x1 << 24 ) | \ + ( (FT_ULong)_x2 << 16 ) | \ + ( (FT_ULong)_x3 << 8 ) | \ + (FT_ULong)_x4 ) + + + /* from include/freetype2/ftsystem.h */ + + typedef struct FT_MemoryRec_* FT_Memory; + + typedef void* (*FT_Alloc_Func)( FT_Memory memory, + long size ); + + typedef void (*FT_Free_Func)( FT_Memory memory, + void* block ); + + typedef void* (*FT_Realloc_Func)( FT_Memory memory, + long cur_size, + long new_size, + void* block ); + + typedef struct FT_MemoryRec_ + { + void* user; + + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + + } FT_MemoryRec; + + + /* from src/ftcalc.c */ + +#if ( defined _WIN32 || defined _WIN64 ) + + typedef __int64 FT_Int64; + +#else + +#include "inttypes.h" + + typedef int64_t FT_Int64; + +#endif + + + static FT_Long + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + +#endif /* __FTMISC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/ftraster.c b/uppsrc/plugin/FT_fontsys/src/raster/ftraster.c new file mode 100644 index 000000000..af5096b01 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/ftraster.c @@ -0,0 +1,3601 @@ +/***************************************************************************/ +/* */ +/* ftraster.c */ +/* */ +/* The FreeType glyph rasterizer (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2005, 2007, 2008, 2009, 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file can be compiled without the rest of the FreeType engine, by */ + /* defining the _STANDALONE_ macro when compiling it. You also need to */ + /* put the files `ftimage.h' and `ftmisc.h' into the $(incdir) */ + /* directory. Typically, you should do something like */ + /* */ + /* - copy `src/raster/ftraster.c' (this file) to your current directory */ + /* */ + /* - copy `include/freetype/ftimage.h' and `src/raster/ftmisc.h' */ + /* to your current directory */ + /* */ + /* - compile `ftraster' with the _STANDALONE_ macro defined, as in */ + /* */ + /* cc -c -D_STANDALONE_ ftraster.c */ + /* */ + /* The renderer can be initialized with a call to */ + /* `ft_standard_raster.raster_new'; a bitmap can be generated */ + /* with a call to `ft_standard_raster.raster_render'. */ + /* */ + /* See the comments and documentation in the file `ftimage.h' for more */ + /* details on how the raster works. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This is a rewrite of the FreeType 1.x scan-line converter */ + /* */ + /*************************************************************************/ + +#ifdef _STANDALONE_ + +#define FT_CONFIG_STANDARD_LIBRARY_H <stdlib.h> + +#include <string.h> /* for memset */ + +#include "ftmisc.h" +#include "ftimage.h" + +#else /* !_STANDALONE_ */ + +#include <freetype/ft2build.h> +#include "ftraster.h" +#include FT_INTERNAL_CALC_H /* for FT_MulDiv only */ + +#include "rastpic.h" + +#endif /* !_STANDALONE_ */ + + + /*************************************************************************/ + /* */ + /* A simple technical note on how the raster works */ + /* ----------------------------------------------- */ + /* */ + /* Converting an outline into a bitmap is achieved in several steps: */ + /* */ + /* 1 - Decomposing the outline into successive `profiles'. Each */ + /* profile is simply an array of scanline intersections on a given */ + /* dimension. A profile's main attributes are */ + /* */ + /* o its scanline position boundaries, i.e. `Ymin' and `Ymax' */ + /* */ + /* o an array of intersection coordinates for each scanline */ + /* between `Ymin' and `Ymax' */ + /* */ + /* o a direction, indicating whether it was built going `up' or */ + /* `down', as this is very important for filling rules */ + /* */ + /* o its drop-out mode */ + /* */ + /* 2 - Sweeping the target map's scanlines in order to compute segment */ + /* `spans' which are then filled. Additionally, this pass */ + /* performs drop-out control. */ + /* */ + /* The outline data is parsed during step 1 only. The profiles are */ + /* built from the bottom of the render pool, used as a stack. The */ + /* following graphics shows the profile list under construction: */ + /* */ + /* __________________________________________________________ _ _ */ + /* | | | | | */ + /* | profile | coordinates for | profile | coordinates for |--> */ + /* | 1 | profile 1 | 2 | profile 2 |--> */ + /* |_________|_________________|_________|_________________|__ _ _ */ + /* */ + /* ^ ^ */ + /* | | */ + /* start of render pool top */ + /* */ + /* The top of the profile stack is kept in the `top' variable. */ + /* */ + /* As you can see, a profile record is pushed on top of the render */ + /* pool, which is then followed by its coordinates/intersections. If */ + /* a change of direction is detected in the outline, a new profile is */ + /* generated until the end of the outline. */ + /* */ + /* Note that when all profiles have been generated, the function */ + /* Finalize_Profile_Table() is used to record, for each profile, its */ + /* bottom-most scanline as well as the scanline above its upmost */ + /* boundary. These positions are called `y-turns' because they (sort */ + /* of) correspond to local extrema. They are stored in a sorted list */ + /* built from the top of the render pool as a downwards stack: */ + /* */ + /* _ _ _______________________________________ */ + /* | | */ + /* <--| sorted list of | */ + /* <--| extrema scanlines | */ + /* _ _ __________________|____________________| */ + /* */ + /* ^ ^ */ + /* | | */ + /* maxBuff sizeBuff = end of pool */ + /* */ + /* This list is later used during the sweep phase in order to */ + /* optimize performance (see technical note on the sweep below). */ + /* */ + /* Of course, the raster detects whether the two stacks collide and */ + /* handles the situation properly. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** CONFIGURATION MACROS **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /* define DEBUG_RASTER if you want to compile a debugging version */ +/* #define DEBUG_RASTER */ + + /* define FT_RASTER_OPTION_ANTI_ALIASING if you want to support */ + /* 5-levels anti-aliasing */ +/* #define FT_RASTER_OPTION_ANTI_ALIASING */ + + /* The size of the two-lines intermediate bitmap used */ + /* for anti-aliasing, in bytes. */ +#define RASTER_GRAY_LINES 2048 + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** OTHER MACROS (do not change) **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_raster + + +#ifdef _STANDALONE_ + + + /* This macro is used to indicate that a function parameter is unused. */ + /* Its purpose is simply to reduce compiler warnings. Note also that */ + /* simply defining it as `(void)x' doesn't avoid warnings with certain */ + /* ANSI compilers (e.g. LCC). */ +#define FT_UNUSED( x ) (x) = (x) + + /* Disable the tracing mechanism for simplicity -- developers can */ + /* activate it easily by redefining these two macros. */ +#ifndef FT_ERROR +#define FT_ERROR( x ) do { } while ( 0 ) /* nothing */ +#endif + +#ifndef FT_TRACE +#define FT_TRACE( x ) do { } while ( 0 ) /* nothing */ +#define FT_TRACE1( x ) do { } while ( 0 ) /* nothing */ +#define FT_TRACE6( x ) do { } while ( 0 ) /* nothing */ +#endif + +#define Raster_Err_None 0 +#define Raster_Err_Not_Ini -1 +#define Raster_Err_Overflow -2 +#define Raster_Err_Neg_Height -3 +#define Raster_Err_Invalid -4 +#define Raster_Err_Unsupported -5 + +#define ft_memset memset + +#define FT_DEFINE_RASTER_FUNCS( class_, glyph_format_, raster_new_, \ + raster_reset_, raster_set_mode_, \ + raster_render_, raster_done_ ) \ + const FT_Raster_Funcs class_ = \ + { \ + glyph_format_, \ + raster_new_, \ + raster_reset_, \ + raster_set_mode_, \ + raster_render_, \ + raster_done_ \ + }; + +#else /* !_STANDALONE_ */ + + +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H /* for FT_TRACE() and FT_ERROR() */ + +#include "rasterrs.h" + +#define Raster_Err_None Raster_Err_Ok +#define Raster_Err_Not_Ini Raster_Err_Raster_Uninitialized +#define Raster_Err_Overflow Raster_Err_Raster_Overflow +#define Raster_Err_Neg_Height Raster_Err_Raster_Negative_Height +#define Raster_Err_Invalid Raster_Err_Invalid_Outline +#define Raster_Err_Unsupported Raster_Err_Cannot_Render_Glyph + + +#endif /* !_STANDALONE_ */ + + +#ifndef FT_MEM_SET +#define FT_MEM_SET( d, s, c ) ft_memset( d, s, c ) +#endif + +#ifndef FT_MEM_ZERO +#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count ) +#endif + + /* FMulDiv means `Fast MulDiv'; it is used in case where `b' is */ + /* typically a small value and the result of a*b is known to fit into */ + /* 32 bits. */ +#define FMulDiv( a, b, c ) ( (a) * (b) / (c) ) + + /* On the other hand, SMulDiv means `Slow MulDiv', and is used typically */ + /* for clipping computations. It simply uses the FT_MulDiv() function */ + /* defined in `ftcalc.h'. */ +#define SMulDiv FT_MulDiv + + /* The rasterizer is a very general purpose component; please leave */ + /* the following redefinitions there (you never know your target */ + /* environment). */ + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef NULL +#define NULL (void*)0 +#endif + +#ifndef SUCCESS +#define SUCCESS 0 +#endif + +#ifndef FAILURE +#define FAILURE 1 +#endif + + +#define MaxBezier 32 /* The maximum number of stacked Bezier curves. */ + /* Setting this constant to more than 32 is a */ + /* pure waste of space. */ + +#define Pixel_Bits 6 /* fractional bits of *input* coordinates */ + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** SIMPLE TYPE DECLARATIONS **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + typedef int Int; + typedef unsigned int UInt; + typedef short Short; + typedef unsigned short UShort, *PUShort; + typedef long Long, *PLong; + + typedef unsigned char Byte, *PByte; + typedef char Bool; + + + typedef union Alignment_ + { + long l; + void* p; + void (*f)(void); + + } Alignment, *PAlignment; + + + typedef struct TPoint_ + { + Long x; + Long y; + + } TPoint; + + + /* values for the `flags' bit field */ +#define Flow_Up 0x8 +#define Overshoot_Top 0x10 +#define Overshoot_Bottom 0x20 + + + /* States of each line, arc, and profile */ + typedef enum TStates_ + { + Unknown_State, + Ascending_State, + Descending_State, + Flat_State + + } TStates; + + + typedef struct TProfile_ TProfile; + typedef TProfile* PProfile; + + struct TProfile_ + { + FT_F26Dot6 X; /* current coordinate during sweep */ + PProfile link; /* link to next profile (various purposes) */ + PLong offset; /* start of profile's data in render pool */ + unsigned flags; /* Bit 0-2: drop-out mode */ + /* Bit 3: profile orientation (up/down) */ + /* Bit 4: is top profile? */ + /* Bit 5: is bottom profile? */ + long height; /* profile's height in scanlines */ + long start; /* profile's starting scanline */ + + unsigned countL; /* number of lines to step before this */ + /* profile becomes drawable */ + + PProfile next; /* next profile in same contour, used */ + /* during drop-out control */ + }; + + typedef PProfile TProfileList; + typedef PProfile* PProfileList; + + + /* Simple record used to implement a stack of bands, required */ + /* by the sub-banding mechanism */ + typedef struct TBand_ + { + Short y_min; /* band's minimum */ + Short y_max; /* band's maximum */ + + } TBand; + + +#define AlignProfileSize \ + ( ( sizeof ( TProfile ) + sizeof ( Alignment ) - 1 ) / sizeof ( long ) ) + + +#ifdef FT_STATIC_RASTER + + +#define RAS_ARGS /* void */ +#define RAS_ARG /* void */ + +#define RAS_VARS /* void */ +#define RAS_VAR /* void */ + +#define FT_UNUSED_RASTER do { } while ( 0 ) + + +#else /* !FT_STATIC_RASTER */ + + +#define RAS_ARGS PWorker worker, +#define RAS_ARG PWorker worker + +#define RAS_VARS worker, +#define RAS_VAR worker + +#define FT_UNUSED_RASTER FT_UNUSED( worker ) + + +#endif /* !FT_STATIC_RASTER */ + + + typedef struct TWorker_ TWorker, *PWorker; + + + /* prototypes used for sweep function dispatch */ + typedef void + Function_Sweep_Init( RAS_ARGS Short* min, + Short* max ); + + typedef void + Function_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ); + + typedef void + Function_Sweep_Step( RAS_ARG ); + + + /* NOTE: These operations are only valid on 2's complement processors */ + +#define FLOOR( x ) ( (x) & -ras.precision ) +#define CEILING( x ) ( ( (x) + ras.precision - 1 ) & -ras.precision ) +#define TRUNC( x ) ( (signed long)(x) >> ras.precision_bits ) +#define FRAC( x ) ( (x) & ( ras.precision - 1 ) ) +#define SCALED( x ) ( ( (x) << ras.scale_shift ) - ras.precision_half ) + +#define IS_BOTTOM_OVERSHOOT( x ) ( CEILING( x ) - x >= ras.precision_half ) +#define IS_TOP_OVERSHOOT( x ) ( x - FLOOR( x ) >= ras.precision_half ) + + /* The most used variables are positioned at the top of the structure. */ + /* Thus, their offset can be coded with less opcodes, resulting in a */ + /* smaller executable. */ + + struct TWorker_ + { + Int precision_bits; /* precision related variables */ + Int precision; + Int precision_half; + Int precision_shift; + Int precision_step; + Int precision_jitter; + + Int scale_shift; /* == precision_shift for bitmaps */ + /* == precision_shift+1 for pixmaps */ + + PLong buff; /* The profiles buffer */ + PLong sizeBuff; /* Render pool size */ + PLong maxBuff; /* Profiles buffer size */ + PLong top; /* Current cursor in buffer */ + + FT_Error error; + + Int numTurns; /* number of Y-turns in outline */ + + TPoint* arc; /* current Bezier arc pointer */ + + UShort bWidth; /* target bitmap width */ + PByte bTarget; /* target bitmap buffer */ + PByte gTarget; /* target pixmap buffer */ + + Long lastX, lastY; + Long minY, maxY; + + UShort num_Profs; /* current number of profiles */ + + Bool fresh; /* signals a fresh new profile which */ + /* `start' field must be completed */ + Bool joint; /* signals that the last arc ended */ + /* exactly on a scanline. Allows */ + /* removal of doublets */ + PProfile cProfile; /* current profile */ + PProfile fProfile; /* head of linked list of profiles */ + PProfile gProfile; /* contour's first profile in case */ + /* of impact */ + + TStates state; /* rendering state */ + + FT_Bitmap target; /* description of target bit/pixmap */ + FT_Outline outline; + + Long traceOfs; /* current offset in target bitmap */ + Long traceG; /* current offset in target pixmap */ + + Short traceIncr; /* sweep's increment in target bitmap */ + + Short gray_min_x; /* current min x during gray rendering */ + Short gray_max_x; /* current max x during gray rendering */ + + /* dispatch variables */ + + Function_Sweep_Init* Proc_Sweep_Init; + Function_Sweep_Span* Proc_Sweep_Span; + Function_Sweep_Span* Proc_Sweep_Drop; + Function_Sweep_Step* Proc_Sweep_Step; + + Byte dropOutControl; /* current drop_out control method */ + + Bool second_pass; /* indicates whether a horizontal pass */ + /* should be performed to control */ + /* drop-out accurately when calling */ + /* Render_Glyph. Note that there is */ + /* no horizontal pass during gray */ + /* rendering. */ + + TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */ + + TBand band_stack[16]; /* band stack used for sub-banding */ + Int band_top; /* band stack top */ + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + Byte* grays; + + Byte gray_lines[RASTER_GRAY_LINES]; + /* Intermediate table used to render the */ + /* graylevels pixmaps. */ + /* gray_lines is a buffer holding two */ + /* monochrome scanlines */ + + Short gray_width; /* width in bytes of one monochrome */ + /* intermediate scanline of gray_lines. */ + /* Each gray pixel takes 2 bits long there */ + + /* The gray_lines must hold 2 lines, thus with size */ + /* in bytes of at least `gray_width*2'. */ + +#endif /* FT_RASTER_ANTI_ALIASING */ + + }; + + + typedef struct TRaster_ + { + char* buffer; + long buffer_size; + void* memory; + PWorker worker; + Byte grays[5]; + Short gray_width; + + } TRaster, *PRaster; + +#ifdef FT_STATIC_RASTER + + static TWorker cur_ras; +#define ras cur_ras + +#else /* !FT_STATIC_RASTER */ + +#define ras (*worker) + +#endif /* !FT_STATIC_RASTER */ + + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + /* A lookup table used to quickly count set bits in four gray 2x2 */ + /* cells. The values of the table have been produced with the */ + /* following code: */ + /* */ + /* for ( i = 0; i < 256; i++ ) */ + /* { */ + /* l = 0; */ + /* j = i; */ + /* */ + /* for ( c = 0; c < 4; c++ ) */ + /* { */ + /* l <<= 4; */ + /* */ + /* if ( j & 0x80 ) l++; */ + /* if ( j & 0x40 ) l++; */ + /* */ + /* j = ( j << 2 ) & 0xFF; */ + /* } */ + /* printf( "0x%04X", l ); */ + /* } */ + /* */ + + static const short count_table[256] = + { + 0x0000, 0x0001, 0x0001, 0x0002, 0x0010, 0x0011, 0x0011, 0x0012, + 0x0010, 0x0011, 0x0011, 0x0012, 0x0020, 0x0021, 0x0021, 0x0022, + 0x0100, 0x0101, 0x0101, 0x0102, 0x0110, 0x0111, 0x0111, 0x0112, + 0x0110, 0x0111, 0x0111, 0x0112, 0x0120, 0x0121, 0x0121, 0x0122, + 0x0100, 0x0101, 0x0101, 0x0102, 0x0110, 0x0111, 0x0111, 0x0112, + 0x0110, 0x0111, 0x0111, 0x0112, 0x0120, 0x0121, 0x0121, 0x0122, + 0x0200, 0x0201, 0x0201, 0x0202, 0x0210, 0x0211, 0x0211, 0x0212, + 0x0210, 0x0211, 0x0211, 0x0212, 0x0220, 0x0221, 0x0221, 0x0222, + 0x1000, 0x1001, 0x1001, 0x1002, 0x1010, 0x1011, 0x1011, 0x1012, + 0x1010, 0x1011, 0x1011, 0x1012, 0x1020, 0x1021, 0x1021, 0x1022, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1200, 0x1201, 0x1201, 0x1202, 0x1210, 0x1211, 0x1211, 0x1212, + 0x1210, 0x1211, 0x1211, 0x1212, 0x1220, 0x1221, 0x1221, 0x1222, + 0x1000, 0x1001, 0x1001, 0x1002, 0x1010, 0x1011, 0x1011, 0x1012, + 0x1010, 0x1011, 0x1011, 0x1012, 0x1020, 0x1021, 0x1021, 0x1022, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1200, 0x1201, 0x1201, 0x1202, 0x1210, 0x1211, 0x1211, 0x1212, + 0x1210, 0x1211, 0x1211, 0x1212, 0x1220, 0x1221, 0x1221, 0x1222, + 0x2000, 0x2001, 0x2001, 0x2002, 0x2010, 0x2011, 0x2011, 0x2012, + 0x2010, 0x2011, 0x2011, 0x2012, 0x2020, 0x2021, 0x2021, 0x2022, + 0x2100, 0x2101, 0x2101, 0x2102, 0x2110, 0x2111, 0x2111, 0x2112, + 0x2110, 0x2111, 0x2111, 0x2112, 0x2120, 0x2121, 0x2121, 0x2122, + 0x2100, 0x2101, 0x2101, 0x2102, 0x2110, 0x2111, 0x2111, 0x2112, + 0x2110, 0x2111, 0x2111, 0x2112, 0x2120, 0x2121, 0x2121, 0x2122, + 0x2200, 0x2201, 0x2201, 0x2202, 0x2210, 0x2211, 0x2211, 0x2212, + 0x2210, 0x2211, 0x2211, 0x2212, 0x2220, 0x2221, 0x2221, 0x2222 + }; + +#endif /* FT_RASTER_OPTION_ANTI_ALIASING */ + + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** PROFILES COMPUTATION **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Set_High_Precision */ + /* */ + /* <Description> */ + /* Set precision variables according to param flag. */ + /* */ + /* <Input> */ + /* High :: Set to True for high precision (typically for ppem < 18), */ + /* false otherwise. */ + /* */ + static void + Set_High_Precision( RAS_ARGS Int High ) + { + /* + * `precision_step' is used in `Bezier_Up' to decide when to split a + * given y-monotonous Bezier arc that crosses a scanline before + * approximating it as a straight segment. The default value of 32 (for + * low accuracy) corresponds to + * + * 32 / 64 == 0.5 pixels , + * + * while for the high accuracy case we have + * + * 256/ (1 << 12) = 0.0625 pixels . + * + * `precision_jitter' is an epsilon threshold used in + * `Vertical_Sweep_Span' to deal with small imperfections in the Bezier + * decomposition (after all, we are working with approximations only); + * it avoids switching on additional pixels which would cause artifacts + * otherwise. + * + * The value of `precision_jitter' has been determined heuristically. + * + */ + + if ( High ) + { + ras.precision_bits = 12; + ras.precision_step = 256; + ras.precision_jitter = 30; + } + else + { + ras.precision_bits = 6; + ras.precision_step = 32; + ras.precision_jitter = 2; + } + + FT_TRACE6(( "Set_High_Precision(%s)\n", High ? "true" : "false" )); + + ras.precision = 1 << ras.precision_bits; + ras.precision_half = ras.precision / 2; + ras.precision_shift = ras.precision_bits - Pixel_Bits; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* New_Profile */ + /* */ + /* <Description> */ + /* Create a new profile in the render pool. */ + /* */ + /* <Input> */ + /* aState :: The state/orientation of the new profile. */ + /* */ + /* overshoot :: Whether the profile's unrounded start position */ + /* differs by at least a half pixel. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow or of incoherent */ + /* profile. */ + /* */ + static Bool + New_Profile( RAS_ARGS TStates aState, + Bool overshoot ) + { + if ( !ras.fProfile ) + { + ras.cProfile = (PProfile)ras.top; + ras.fProfile = ras.cProfile; + ras.top += AlignProfileSize; + } + + if ( ras.top >= ras.maxBuff ) + { + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + ras.cProfile->flags = 0; + ras.cProfile->start = 0; + ras.cProfile->height = 0; + ras.cProfile->offset = ras.top; + ras.cProfile->link = (PProfile)0; + ras.cProfile->next = (PProfile)0; + ras.cProfile->flags = ras.dropOutControl; + + switch ( aState ) + { + case Ascending_State: + ras.cProfile->flags |= Flow_Up; + if ( overshoot ) + ras.cProfile->flags |= Overshoot_Bottom; + + FT_TRACE6(( "New ascending profile = %p\n", ras.cProfile )); + break; + + case Descending_State: + if ( overshoot ) + ras.cProfile->flags |= Overshoot_Top; + FT_TRACE6(( "New descending profile = %p\n", ras.cProfile )); + break; + + default: + FT_ERROR(( "New_Profile: invalid profile direction\n" )); + ras.error = Raster_Err_Invalid; + return FAILURE; + } + + if ( !ras.gProfile ) + ras.gProfile = ras.cProfile; + + ras.state = aState; + ras.fresh = TRUE; + ras.joint = FALSE; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* End_Profile */ + /* */ + /* <Description> */ + /* Finalize the current profile. */ + /* */ + /* <Input> */ + /* overshoot :: Whether the profile's unrounded end position differs */ + /* by at least a half pixel. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow or incoherency. */ + /* */ + static Bool + End_Profile( RAS_ARGS Bool overshoot ) + { + Long h; + PProfile oldProfile; + + + h = (Long)( ras.top - ras.cProfile->offset ); + + if ( h < 0 ) + { + FT_ERROR(( "End_Profile: negative height encountered\n" )); + ras.error = Raster_Err_Neg_Height; + return FAILURE; + } + + if ( h > 0 ) + { + FT_TRACE6(( "Ending profile %p, start = %ld, height = %ld\n", + ras.cProfile, ras.cProfile->start, h )); + + ras.cProfile->height = h; + if ( overshoot ) + { + if ( ras.cProfile->flags & Flow_Up ) + ras.cProfile->flags |= Overshoot_Top; + else + ras.cProfile->flags |= Overshoot_Bottom; + } + + oldProfile = ras.cProfile; + ras.cProfile = (PProfile)ras.top; + + ras.top += AlignProfileSize; + + ras.cProfile->height = 0; + ras.cProfile->offset = ras.top; + + oldProfile->next = ras.cProfile; + ras.num_Profs++; + } + + if ( ras.top >= ras.maxBuff ) + { + FT_TRACE1(( "overflow in End_Profile\n" )); + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + ras.joint = FALSE; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Insert_Y_Turn */ + /* */ + /* <Description> */ + /* Insert a salient into the sorted list placed on top of the render */ + /* pool. */ + /* */ + /* <Input> */ + /* New y scanline position. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow. */ + /* */ + static Bool + Insert_Y_Turn( RAS_ARGS Int y ) + { + PLong y_turns; + Int y2, n; + + + n = ras.numTurns - 1; + y_turns = ras.sizeBuff - ras.numTurns; + + /* look for first y value that is <= */ + while ( n >= 0 && y < y_turns[n] ) + n--; + + /* if it is <, simply insert it, ignore if == */ + if ( n >= 0 && y > y_turns[n] ) + while ( n >= 0 ) + { + y2 = (Int)y_turns[n]; + y_turns[n] = y; + y = y2; + n--; + } + + if ( n < 0 ) + { + ras.maxBuff--; + if ( ras.maxBuff <= ras.top ) + { + ras.error = Raster_Err_Overflow; + return FAILURE; + } + ras.numTurns++; + ras.sizeBuff[-ras.numTurns] = y; + } + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Finalize_Profile_Table */ + /* */ + /* <Description> */ + /* Adjust all links in the profiles list. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow. */ + /* */ + static Bool + Finalize_Profile_Table( RAS_ARG ) + { + Int bottom, top; + UShort n; + PProfile p; + + + n = ras.num_Profs; + p = ras.fProfile; + + if ( n > 1 && p ) + { + while ( n > 0 ) + { + if ( n > 1 ) + p->link = (PProfile)( p->offset + p->height ); + else + p->link = NULL; + + if ( p->flags & Flow_Up ) + { + bottom = (Int)p->start; + top = (Int)( p->start + p->height - 1 ); + } + else + { + bottom = (Int)( p->start - p->height + 1 ); + top = (Int)p->start; + p->start = bottom; + p->offset += p->height - 1; + } + + if ( Insert_Y_Turn( RAS_VARS bottom ) || + Insert_Y_Turn( RAS_VARS top + 1 ) ) + return FAILURE; + + p = p->link; + n--; + } + } + else + ras.fProfile = NULL; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Split_Conic */ + /* */ + /* <Description> */ + /* Subdivide one conic Bezier into two joint sub-arcs in the Bezier */ + /* stack. */ + /* */ + /* <Input> */ + /* None (subdivided Bezier is taken from the top of the stack). */ + /* */ + /* <Note> */ + /* This routine is the `beef' of this component. It is _the_ inner */ + /* loop that should be optimized to hell to get the best performance. */ + /* */ + static void + Split_Conic( TPoint* base ) + { + Long a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + + /* hand optimized. gcc doesn't seem to be too good at common */ + /* expression substitution and instruction scheduling ;-) */ + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Split_Cubic */ + /* */ + /* <Description> */ + /* Subdivide a third-order Bezier arc into two joint sub-arcs in the */ + /* Bezier stack. */ + /* */ + /* <Note> */ + /* This routine is the `beef' of the component. It is one of _the_ */ + /* inner loops that should be optimized like hell to get the best */ + /* performance. */ + /* */ + static void + Split_Cubic( TPoint* base ) + { + Long a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c + 1 ) >> 1; + base[5].x = b = ( base[3].x + d + 1 ) >> 1; + c = ( c + d + 1 ) >> 1; + base[2].x = a = ( a + c + 1 ) >> 1; + base[4].x = b = ( b + c + 1 ) >> 1; + base[3].x = ( a + b + 1 ) >> 1; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c + 1 ) >> 1; + base[5].y = b = ( base[3].y + d + 1 ) >> 1; + c = ( c + d + 1 ) >> 1; + base[2].y = a = ( a + c + 1 ) >> 1; + base[4].y = b = ( b + c + 1 ) >> 1; + base[3].y = ( a + b + 1 ) >> 1; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Line_Up */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an ascending line segment and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* x1 :: The x-coordinate of the segment's start point. */ + /* */ + /* y1 :: The y-coordinate of the segment's start point. */ + /* */ + /* x2 :: The x-coordinate of the segment's end point. */ + /* */ + /* y2 :: The y-coordinate of the segment's end point. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Line_Up( RAS_ARGS Long x1, + Long y1, + Long x2, + Long y2, + Long miny, + Long maxy ) + { + Long Dx, Dy; + Int e1, e2, f1, f2, size; /* XXX: is `Short' sufficient? */ + Long Ix, Rx, Ax; + + PLong top; + + + Dx = x2 - x1; + Dy = y2 - y1; + + if ( Dy <= 0 || y2 < miny || y1 > maxy ) + return SUCCESS; + + if ( y1 < miny ) + { + /* Take care: miny-y1 can be a very large value; we use */ + /* a slow MulDiv function to avoid clipping bugs */ + x1 += SMulDiv( Dx, miny - y1, Dy ); + e1 = (Int)TRUNC( miny ); + f1 = 0; + } + else + { + e1 = (Int)TRUNC( y1 ); + f1 = (Int)FRAC( y1 ); + } + + if ( y2 > maxy ) + { + /* x2 += FMulDiv( Dx, maxy - y2, Dy ); UNNECESSARY */ + e2 = (Int)TRUNC( maxy ); + f2 = 0; + } + else + { + e2 = (Int)TRUNC( y2 ); + f2 = (Int)FRAC( y2 ); + } + + if ( f1 > 0 ) + { + if ( e1 == e2 ) + return SUCCESS; + else + { + x1 += SMulDiv( Dx, ras.precision - f1, Dy ); + e1 += 1; + } + } + else + if ( ras.joint ) + { + ras.top--; + ras.joint = FALSE; + } + + ras.joint = (char)( f2 == 0 ); + + if ( ras.fresh ) + { + ras.cProfile->start = e1; + ras.fresh = FALSE; + } + + size = e2 - e1 + 1; + if ( ras.top + size >= ras.maxBuff ) + { + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + if ( Dx > 0 ) + { + Ix = SMulDiv( ras.precision, Dx, Dy); + Rx = ( ras.precision * Dx ) % Dy; + Dx = 1; + } + else + { + Ix = SMulDiv( ras.precision, -Dx, Dy) * -1; + Rx = ( ras.precision * -Dx ) % Dy; + Dx = -1; + } + + Ax = -Dy; + top = ras.top; + + while ( size > 0 ) + { + *top++ = x1; + + x1 += Ix; + Ax += Rx; + if ( Ax >= 0 ) + { + Ax -= Dy; + x1 += Dx; + } + size--; + } + + ras.top = top; + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Line_Down */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an descending line segment and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* x1 :: The x-coordinate of the segment's start point. */ + /* */ + /* y1 :: The y-coordinate of the segment's start point. */ + /* */ + /* x2 :: The x-coordinate of the segment's end point. */ + /* */ + /* y2 :: The y-coordinate of the segment's end point. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Line_Down( RAS_ARGS Long x1, + Long y1, + Long x2, + Long y2, + Long miny, + Long maxy ) + { + Bool result, fresh; + + + fresh = ras.fresh; + + result = Line_Up( RAS_VARS x1, -y1, x2, -y2, -maxy, -miny ); + + if ( fresh && !ras.fresh ) + ras.cProfile->start = -ras.cProfile->start; + + return result; + } + + + /* A function type describing the functions used to split Bezier arcs */ + typedef void (*TSplitter)( TPoint* base ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Bezier_Up */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an ascending Bezier arc and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* degree :: The degree of the Bezier arc (either 2 or 3). */ + /* */ + /* splitter :: The function to split Bezier arcs. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Bezier_Up( RAS_ARGS Int degree, + TSplitter splitter, + Long miny, + Long maxy ) + { + Long y1, y2, e, e2, e0; + Short f1; + + TPoint* arc; + TPoint* start_arc; + + PLong top; + + + arc = ras.arc; + y1 = arc[degree].y; + y2 = arc[0].y; + top = ras.top; + + if ( y2 < miny || y1 > maxy ) + goto Fin; + + e2 = FLOOR( y2 ); + + if ( e2 > maxy ) + e2 = maxy; + + e0 = miny; + + if ( y1 < miny ) + e = miny; + else + { + e = CEILING( y1 ); + f1 = (Short)( FRAC( y1 ) ); + e0 = e; + + if ( f1 == 0 ) + { + if ( ras.joint ) + { + top--; + ras.joint = FALSE; + } + + *top++ = arc[degree].x; + + e += ras.precision; + } + } + + if ( ras.fresh ) + { + ras.cProfile->start = TRUNC( e0 ); + ras.fresh = FALSE; + } + + if ( e2 < e ) + goto Fin; + + if ( ( top + TRUNC( e2 - e ) + 1 ) >= ras.maxBuff ) + { + ras.top = top; + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + start_arc = arc; + + while ( arc >= start_arc && e <= e2 ) + { + ras.joint = FALSE; + + y2 = arc[0].y; + + if ( y2 > e ) + { + y1 = arc[degree].y; + if ( y2 - y1 >= ras.precision_step ) + { + splitter( arc ); + arc += degree; + } + else + { + *top++ = arc[degree].x + FMulDiv( arc[0].x - arc[degree].x, + e - y1, y2 - y1 ); + arc -= degree; + e += ras.precision; + } + } + else + { + if ( y2 == e ) + { + ras.joint = TRUE; + *top++ = arc[0].x; + + e += ras.precision; + } + arc -= degree; + } + } + + Fin: + ras.top = top; + ras.arc -= degree; + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Bezier_Down */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an descending Bezier arc and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* degree :: The degree of the Bezier arc (either 2 or 3). */ + /* */ + /* splitter :: The function to split Bezier arcs. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Bezier_Down( RAS_ARGS Int degree, + TSplitter splitter, + Long miny, + Long maxy ) + { + TPoint* arc = ras.arc; + Bool result, fresh; + + + arc[0].y = -arc[0].y; + arc[1].y = -arc[1].y; + arc[2].y = -arc[2].y; + if ( degree > 2 ) + arc[3].y = -arc[3].y; + + fresh = ras.fresh; + + result = Bezier_Up( RAS_VARS degree, splitter, -maxy, -miny ); + + if ( fresh && !ras.fresh ) + ras.cProfile->start = -ras.cProfile->start; + + arc[0].y = -arc[0].y; + return result; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Line_To */ + /* */ + /* <Description> */ + /* Inject a new line segment and adjust the Profiles list. */ + /* */ + /* <Input> */ + /* x :: The x-coordinate of the segment's end point (its start point */ + /* is stored in `lastX'). */ + /* */ + /* y :: The y-coordinate of the segment's end point (its start point */ + /* is stored in `lastY'). */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow or incorrect */ + /* profile. */ + /* */ + static Bool + Line_To( RAS_ARGS Long x, + Long y ) + { + /* First, detect a change of direction */ + + switch ( ras.state ) + { + case Unknown_State: + if ( y > ras.lastY ) + { + if ( New_Profile( RAS_VARS Ascending_State, + IS_BOTTOM_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + else + { + if ( y < ras.lastY ) + if ( New_Profile( RAS_VARS Descending_State, + IS_TOP_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + break; + + case Ascending_State: + if ( y < ras.lastY ) + { + if ( End_Profile( RAS_VARS IS_TOP_OVERSHOOT( ras.lastY ) ) || + New_Profile( RAS_VARS Descending_State, + IS_TOP_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + break; + + case Descending_State: + if ( y > ras.lastY ) + { + if ( End_Profile( RAS_VARS IS_BOTTOM_OVERSHOOT( ras.lastY ) ) || + New_Profile( RAS_VARS Ascending_State, + IS_BOTTOM_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + break; + + default: + ; + } + + /* Then compute the lines */ + + switch ( ras.state ) + { + case Ascending_State: + if ( Line_Up( RAS_VARS ras.lastX, ras.lastY, + x, y, ras.minY, ras.maxY ) ) + return FAILURE; + break; + + case Descending_State: + if ( Line_Down( RAS_VARS ras.lastX, ras.lastY, + x, y, ras.minY, ras.maxY ) ) + return FAILURE; + break; + + default: + ; + } + + ras.lastX = x; + ras.lastY = y; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Conic_To */ + /* */ + /* <Description> */ + /* Inject a new conic arc and adjust the profile list. */ + /* */ + /* <Input> */ + /* cx :: The x-coordinate of the arc's new control point. */ + /* */ + /* cy :: The y-coordinate of the arc's new control point. */ + /* */ + /* x :: The x-coordinate of the arc's end point (its start point is */ + /* stored in `lastX'). */ + /* */ + /* y :: The y-coordinate of the arc's end point (its start point is */ + /* stored in `lastY'). */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow or incorrect */ + /* profile. */ + /* */ + static Bool + Conic_To( RAS_ARGS Long cx, + Long cy, + Long x, + Long y ) + { + Long y1, y2, y3, x3, ymin, ymax; + TStates state_bez; + + + ras.arc = ras.arcs; + ras.arc[2].x = ras.lastX; + ras.arc[2].y = ras.lastY; + ras.arc[1].x = cx; + ras.arc[1].y = cy; + ras.arc[0].x = x; + ras.arc[0].y = y; + + do + { + y1 = ras.arc[2].y; + y2 = ras.arc[1].y; + y3 = ras.arc[0].y; + x3 = ras.arc[0].x; + + /* first, categorize the Bezier arc */ + + if ( y1 <= y3 ) + { + ymin = y1; + ymax = y3; + } + else + { + ymin = y3; + ymax = y1; + } + + if ( y2 < ymin || y2 > ymax ) + { + /* this arc has no given direction, split it! */ + Split_Conic( ras.arc ); + ras.arc += 2; + } + else if ( y1 == y3 ) + { + /* this arc is flat, ignore it and pop it from the Bezier stack */ + ras.arc -= 2; + } + else + { + /* the arc is y-monotonous, either ascending or descending */ + /* detect a change of direction */ + state_bez = y1 < y3 ? Ascending_State : Descending_State; + if ( ras.state != state_bez ) + { + Bool o = state_bez == Ascending_State ? IS_BOTTOM_OVERSHOOT( y1 ) + : IS_TOP_OVERSHOOT( y1 ); + + + /* finalize current profile if any */ + if ( ras.state != Unknown_State && + End_Profile( RAS_VARS o ) ) + goto Fail; + + /* create a new profile */ + if ( New_Profile( RAS_VARS state_bez, o ) ) + goto Fail; + } + + /* now call the appropriate routine */ + if ( state_bez == Ascending_State ) + { + if ( Bezier_Up( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) ) + goto Fail; + } + else + if ( Bezier_Down( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) ) + goto Fail; + } + + } while ( ras.arc >= ras.arcs ); + + ras.lastX = x3; + ras.lastY = y3; + + return SUCCESS; + + Fail: + return FAILURE; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Cubic_To */ + /* */ + /* <Description> */ + /* Inject a new cubic arc and adjust the profile list. */ + /* */ + /* <Input> */ + /* cx1 :: The x-coordinate of the arc's first new control point. */ + /* */ + /* cy1 :: The y-coordinate of the arc's first new control point. */ + /* */ + /* cx2 :: The x-coordinate of the arc's second new control point. */ + /* */ + /* cy2 :: The y-coordinate of the arc's second new control point. */ + /* */ + /* x :: The x-coordinate of the arc's end point (its start point is */ + /* stored in `lastX'). */ + /* */ + /* y :: The y-coordinate of the arc's end point (its start point is */ + /* stored in `lastY'). */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow or incorrect */ + /* profile. */ + /* */ + static Bool + Cubic_To( RAS_ARGS Long cx1, + Long cy1, + Long cx2, + Long cy2, + Long x, + Long y ) + { + Long y1, y2, y3, y4, x4, ymin1, ymax1, ymin2, ymax2; + TStates state_bez; + + + ras.arc = ras.arcs; + ras.arc[3].x = ras.lastX; + ras.arc[3].y = ras.lastY; + ras.arc[2].x = cx1; + ras.arc[2].y = cy1; + ras.arc[1].x = cx2; + ras.arc[1].y = cy2; + ras.arc[0].x = x; + ras.arc[0].y = y; + + do + { + y1 = ras.arc[3].y; + y2 = ras.arc[2].y; + y3 = ras.arc[1].y; + y4 = ras.arc[0].y; + x4 = ras.arc[0].x; + + /* first, categorize the Bezier arc */ + + if ( y1 <= y4 ) + { + ymin1 = y1; + ymax1 = y4; + } + else + { + ymin1 = y4; + ymax1 = y1; + } + + if ( y2 <= y3 ) + { + ymin2 = y2; + ymax2 = y3; + } + else + { + ymin2 = y3; + ymax2 = y2; + } + + if ( ymin2 < ymin1 || ymax2 > ymax1 ) + { + /* this arc has no given direction, split it! */ + Split_Cubic( ras.arc ); + ras.arc += 3; + } + else if ( y1 == y4 ) + { + /* this arc is flat, ignore it and pop it from the Bezier stack */ + ras.arc -= 3; + } + else + { + state_bez = ( y1 <= y4 ) ? Ascending_State : Descending_State; + + /* detect a change of direction */ + if ( ras.state != state_bez ) + { + Bool o = state_bez == Ascending_State ? IS_BOTTOM_OVERSHOOT( y1 ) + : IS_TOP_OVERSHOOT( y1 ); + + + /* finalize current profile if any */ + if ( ras.state != Unknown_State && + End_Profile( RAS_VARS o ) ) + goto Fail; + + if ( New_Profile( RAS_VARS state_bez, o ) ) + goto Fail; + } + + /* compute intersections */ + if ( state_bez == Ascending_State ) + { + if ( Bezier_Up( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) ) + goto Fail; + } + else + if ( Bezier_Down( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) ) + goto Fail; + } + + } while ( ras.arc >= ras.arcs ); + + ras.lastX = x4; + ras.lastY = y4; + + return SUCCESS; + + Fail: + return FAILURE; + } + + +#undef SWAP_ +#define SWAP_( x, y ) do \ + { \ + Long swap = x; \ + \ + \ + x = y; \ + y = swap; \ + } while ( 0 ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Decompose_Curve */ + /* */ + /* <Description> */ + /* Scan the outline arrays in order to emit individual segments and */ + /* Beziers by calling Line_To() and Bezier_To(). It handles all */ + /* weird cases, like when the first point is off the curve, or when */ + /* there are simply no `on' points in the contour! */ + /* */ + /* <Input> */ + /* first :: The index of the first point in the contour. */ + /* */ + /* last :: The index of the last point in the contour. */ + /* */ + /* flipped :: If set, flip the direction of the curve. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on error. */ + /* */ + static Bool + Decompose_Curve( RAS_ARGS UShort first, + UShort last, + int flipped ) + { + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* points; + FT_Vector* point; + FT_Vector* limit; + char* tags; + + unsigned tag; /* current point's state */ + + + points = ras.outline.points; + limit = points + last; + + v_start.x = SCALED( points[first].x ); + v_start.y = SCALED( points[first].y ); + v_last.x = SCALED( points[last].x ); + v_last.y = SCALED( points[last].y ); + + if ( flipped ) + { + SWAP_( v_start.x, v_start.y ); + SWAP_( v_last.x, v_last.y ); + } + + v_control = v_start; + + point = points + first; + tags = ras.outline.tags + first; + + /* set scan mode if necessary */ + if ( tags[0] & FT_CURVE_TAG_HAS_SCANMODE ) + ras.dropOutControl = (Byte)tags[0] >> 5; + + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* first point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( ras.outline.tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + + v_last = v_start; + } + point--; + tags--; + } + + ras.lastX = v_start.x; + ras.lastY = v_start.y; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + Long x, y; + + + x = SCALED( point->x ); + y = SCALED( point->y ); + if ( flipped ) + SWAP_( x, y ); + + if ( Line_To( RAS_VARS x, y ) ) + goto Fail; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED( point[0].x ); + v_control.y = SCALED( point[0].y ); + + if ( flipped ) + SWAP_( v_control.x, v_control.y ); + + Do_Conic: + if ( point < limit ) + { + FT_Vector v_middle; + Long x, y; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + x = SCALED( point[0].x ); + y = SCALED( point[0].y ); + + if ( flipped ) + SWAP_( x, y ); + + if ( tag == FT_CURVE_TAG_ON ) + { + if ( Conic_To( RAS_VARS v_control.x, v_control.y, x, y ) ) + goto Fail; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + x ) / 2; + v_middle.y = ( v_control.y + y ) / 2; + + if ( Conic_To( RAS_VARS v_control.x, v_control.y, + v_middle.x, v_middle.y ) ) + goto Fail; + + v_control.x = x; + v_control.y = y; + + goto Do_Conic; + } + + if ( Conic_To( RAS_VARS v_control.x, v_control.y, + v_start.x, v_start.y ) ) + goto Fail; + + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + Long x1, y1, x2, y2, x3, y3; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + x1 = SCALED( point[-2].x ); + y1 = SCALED( point[-2].y ); + x2 = SCALED( point[-1].x ); + y2 = SCALED( point[-1].y ); + + if ( flipped ) + { + SWAP_( x1, y1 ); + SWAP_( x2, y2 ); + } + + if ( point <= limit ) + { + x3 = SCALED( point[0].x ); + y3 = SCALED( point[0].y ); + + if ( flipped ) + SWAP_( x3, y3 ); + + if ( Cubic_To( RAS_VARS x1, y1, x2, y2, x3, y3 ) ) + goto Fail; + continue; + } + + if ( Cubic_To( RAS_VARS x1, y1, x2, y2, v_start.x, v_start.y ) ) + goto Fail; + goto Close; + } + } + } + + /* close the contour with a line segment */ + if ( Line_To( RAS_VARS v_start.x, v_start.y ) ) + goto Fail; + + Close: + return SUCCESS; + + Invalid_Outline: + ras.error = Raster_Err_Invalid; + + Fail: + return FAILURE; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Convert_Glyph */ + /* */ + /* <Description> */ + /* Convert a glyph into a series of segments and arcs and make a */ + /* profiles list with them. */ + /* */ + /* <Input> */ + /* flipped :: If set, flip the direction of curve. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE if any error was encountered during */ + /* rendering. */ + /* */ + static Bool + Convert_Glyph( RAS_ARGS int flipped ) + { + int i; + unsigned start; + + PProfile lastProfile; + + + ras.fProfile = NULL; + ras.joint = FALSE; + ras.fresh = FALSE; + + ras.maxBuff = ras.sizeBuff - AlignProfileSize; + + ras.numTurns = 0; + + ras.cProfile = (PProfile)ras.top; + ras.cProfile->offset = ras.top; + ras.num_Profs = 0; + + start = 0; + + for ( i = 0; i < ras.outline.n_contours; i++ ) + { + Bool o; + + + ras.state = Unknown_State; + ras.gProfile = NULL; + + if ( Decompose_Curve( RAS_VARS (unsigned short)start, + ras.outline.contours[i], + flipped ) ) + return FAILURE; + + start = ras.outline.contours[i] + 1; + + /* we must now check whether the extreme arcs join or not */ + if ( FRAC( ras.lastY ) == 0 && + ras.lastY >= ras.minY && + ras.lastY <= ras.maxY ) + if ( ras.gProfile && + ( ras.gProfile->flags & Flow_Up ) == + ( ras.cProfile->flags & Flow_Up ) ) + ras.top--; + /* Note that ras.gProfile can be nil if the contour was too small */ + /* to be drawn. */ + + lastProfile = ras.cProfile; + if ( ras.cProfile->flags & Flow_Up ) + o = IS_TOP_OVERSHOOT( ras.lastY ); + else + o = IS_BOTTOM_OVERSHOOT( ras.lastY ); + if ( End_Profile( RAS_VARS o ) ) + return FAILURE; + + /* close the `next profile in contour' linked list */ + if ( ras.gProfile ) + lastProfile->next = ras.gProfile; + } + + if ( Finalize_Profile_Table( RAS_VAR ) ) + return FAILURE; + + return (Bool)( ras.top < ras.maxBuff ? SUCCESS : FAILURE ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** SCAN-LINE SWEEPS AND DRAWING **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Init_Linked */ + /* */ + /* Initializes an empty linked list. */ + /* */ + static void + Init_Linked( TProfileList* l ) + { + *l = NULL; + } + + + /*************************************************************************/ + /* */ + /* InsNew */ + /* */ + /* Inserts a new profile in a linked list. */ + /* */ + static void + InsNew( PProfileList list, + PProfile profile ) + { + PProfile *old, current; + Long x; + + + old = list; + current = *old; + x = profile->X; + + while ( current ) + { + if ( x < current->X ) + break; + old = ¤t->link; + current = *old; + } + + profile->link = current; + *old = profile; + } + + + /*************************************************************************/ + /* */ + /* DelOld */ + /* */ + /* Removes an old profile from a linked list. */ + /* */ + static void + DelOld( PProfileList list, + PProfile profile ) + { + PProfile *old, current; + + + old = list; + current = *old; + + while ( current ) + { + if ( current == profile ) + { + *old = current->link; + return; + } + + old = ¤t->link; + current = *old; + } + + /* we should never get there, unless the profile was not part of */ + /* the list. */ + } + + + /*************************************************************************/ + /* */ + /* Sort */ + /* */ + /* Sorts a trace list. In 95%, the list is already sorted. We need */ + /* an algorithm which is fast in this case. Bubble sort is enough */ + /* and simple. */ + /* */ + static void + Sort( PProfileList list ) + { + PProfile *old, current, next; + + + /* First, set the new X coordinate of each profile */ + current = *list; + while ( current ) + { + current->X = *current->offset; + current->offset += current->flags & Flow_Up ? 1 : -1; + current->height--; + current = current->link; + } + + /* Then sort them */ + old = list; + current = *old; + + if ( !current ) + return; + + next = current->link; + + while ( next ) + { + if ( current->X <= next->X ) + { + old = ¤t->link; + current = *old; + + if ( !current ) + return; + } + else + { + *old = next; + current->link = next->link; + next->link = current; + + old = list; + current = *old; + } + + next = current->link; + } + } + + + /*************************************************************************/ + /* */ + /* Vertical Sweep Procedure Set */ + /* */ + /* These four routines are used during the vertical black/white sweep */ + /* phase by the generic Draw_Sweep() function. */ + /* */ + /*************************************************************************/ + + static void + Vertical_Sweep_Init( RAS_ARGS Short* min, + Short* max ) + { + Long pitch = ras.target.pitch; + + FT_UNUSED( max ); + + + ras.traceIncr = (Short)-pitch; + ras.traceOfs = -*min * pitch; + if ( pitch > 0 ) + ras.traceOfs += ( ras.target.rows - 1 ) * pitch; + + ras.gray_min_x = 0; + ras.gray_max_x = 0; + } + + + static void + Vertical_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2; + int c1, c2; + Byte f1, f2; + Byte* target; + + FT_UNUSED( y ); + FT_UNUSED( left ); + FT_UNUSED( right ); + + + /* Drop-out control */ + + e1 = TRUNC( CEILING( x1 ) ); + + if ( x2 - x1 - ras.precision <= ras.precision_jitter ) + e2 = e1; + else + e2 = TRUNC( FLOOR( x2 ) ); + + if ( e2 >= 0 && e1 < ras.bWidth ) + { + if ( e1 < 0 ) + e1 = 0; + if ( e2 >= ras.bWidth ) + e2 = ras.bWidth - 1; + + c1 = (Short)( e1 >> 3 ); + c2 = (Short)( e2 >> 3 ); + + f1 = (Byte) ( 0xFF >> ( e1 & 7 ) ); + f2 = (Byte) ~( 0x7F >> ( e2 & 7 ) ); + + if ( ras.gray_min_x > c1 ) + ras.gray_min_x = (short)c1; + if ( ras.gray_max_x < c2 ) + ras.gray_max_x = (short)c2; + + target = ras.bTarget + ras.traceOfs + c1; + c2 -= c1; + + if ( c2 > 0 ) + { + target[0] |= f1; + + /* memset() is slower than the following code on many platforms. */ + /* This is due to the fact that, in the vast majority of cases, */ + /* the span length in bytes is relatively small. */ + c2--; + while ( c2 > 0 ) + { + *(++target) = 0xFF; + c2--; + } + target[1] |= f2; + } + else + *target |= ( f1 & f2 ); + } + } + + + static void + Vertical_Sweep_Drop( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2, pxl; + Short c1, f1; + + + /* Drop-out control */ + + /* e2 x2 x1 e1 */ + /* */ + /* ^ | */ + /* | | */ + /* +-------------+---------------------+------------+ */ + /* | | */ + /* | v */ + /* */ + /* pixel contour contour pixel */ + /* center center */ + + /* drop-out mode scan conversion rules (as defined in OpenType) */ + /* --------------------------------------------------------------- */ + /* 0 1, 2, 3 */ + /* 1 1, 2, 4 */ + /* 2 1, 2 */ + /* 3 same as mode 2 */ + /* 4 1, 2, 5 */ + /* 5 1, 2, 6 */ + /* 6, 7 same as mode 2 */ + + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + pxl = e1; + + if ( e1 > e2 ) + { + Int dropOutControl = left->flags & 7; + + + if ( e1 == e2 + ras.precision ) + { + switch ( dropOutControl ) + { + case 0: /* simple drop-outs including stubs */ + pxl = e2; + break; + + case 4: /* smart drop-outs including stubs */ + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + case 1: /* simple drop-outs excluding stubs */ + case 5: /* smart drop-outs excluding stubs */ + + /* Drop-out Control Rules #4 and #6 */ + + /* The specification neither provides an exact definition */ + /* of a `stub' nor gives exact rules to exclude them. */ + /* */ + /* Here the constraints we use to recognize a stub. */ + /* */ + /* upper stub: */ + /* */ + /* - P_Left and P_Right are in the same contour */ + /* - P_Right is the successor of P_Left in that contour */ + /* - y is the top of P_Left and P_Right */ + /* */ + /* lower stub: */ + /* */ + /* - P_Left and P_Right are in the same contour */ + /* - P_Left is the successor of P_Right in that contour */ + /* - y is the bottom of P_Left */ + /* */ + /* We draw a stub if the following constraints are met. */ + /* */ + /* - for an upper or lower stub, there is top or bottom */ + /* overshoot, respectively */ + /* - the covered interval is greater or equal to a half */ + /* pixel */ + + /* upper stub test */ + if ( left->next == right && + left->height <= 0 && + !( left->flags & Overshoot_Top && + x2 - x1 >= ras.precision_half ) ) + return; + + /* lower stub test */ + if ( right->next == left && + left->start == y && + !( left->flags & Overshoot_Bottom && + x2 - x1 >= ras.precision_half ) ) + return; + + if ( dropOutControl == 1 ) + pxl = e2; + else + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + default: /* modes 2, 3, 6, 7 */ + return; /* no drop-out control */ + } + + /* undocumented but confirmed: If the drop-out would result in a */ + /* pixel outside of the bounding box, use the pixel inside of the */ + /* bounding box instead */ + if ( pxl < 0 ) + pxl = e1; + else if ( TRUNC( pxl ) >= ras.bWidth ) + pxl = e2; + + /* check that the other pixel isn't set */ + e1 = pxl == e1 ? e2 : e1; + + e1 = TRUNC( e1 ); + + c1 = (Short)( e1 >> 3 ); + f1 = (Short)( e1 & 7 ); + + if ( e1 >= 0 && e1 < ras.bWidth && + ras.bTarget[ras.traceOfs + c1] & ( 0x80 >> f1 ) ) + return; + } + else + return; + } + + e1 = TRUNC( pxl ); + + if ( e1 >= 0 && e1 < ras.bWidth ) + { + c1 = (Short)( e1 >> 3 ); + f1 = (Short)( e1 & 7 ); + + if ( ras.gray_min_x > c1 ) + ras.gray_min_x = c1; + if ( ras.gray_max_x < c1 ) + ras.gray_max_x = c1; + + ras.bTarget[ras.traceOfs + c1] |= (char)( 0x80 >> f1 ); + } + } + + + static void + Vertical_Sweep_Step( RAS_ARG ) + { + ras.traceOfs += ras.traceIncr; + } + + + /***********************************************************************/ + /* */ + /* Horizontal Sweep Procedure Set */ + /* */ + /* These four routines are used during the horizontal black/white */ + /* sweep phase by the generic Draw_Sweep() function. */ + /* */ + /***********************************************************************/ + + static void + Horizontal_Sweep_Init( RAS_ARGS Short* min, + Short* max ) + { + /* nothing, really */ + FT_UNUSED_RASTER; + FT_UNUSED( min ); + FT_UNUSED( max ); + } + + + static void + Horizontal_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2; + PByte bits; + Byte f1; + + FT_UNUSED( left ); + FT_UNUSED( right ); + + + if ( x2 - x1 < ras.precision ) + { + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + + if ( e1 == e2 ) + { + bits = ras.bTarget + ( y >> 3 ); + f1 = (Byte)( 0x80 >> ( y & 7 ) ); + + e1 = TRUNC( e1 ); + + if ( e1 >= 0 && e1 < ras.target.rows ) + { + PByte p; + + + p = bits - e1 * ras.target.pitch; + if ( ras.target.pitch > 0 ) + p += ( ras.target.rows - 1 ) * ras.target.pitch; + + p[0] |= f1; + } + } + } + } + + + static void + Horizontal_Sweep_Drop( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2, pxl; + PByte bits; + Byte f1; + + + /* During the horizontal sweep, we only take care of drop-outs */ + + /* e1 + <-- pixel center */ + /* | */ + /* x1 ---+--> <-- contour */ + /* | */ + /* | */ + /* x2 <--+--- <-- contour */ + /* | */ + /* | */ + /* e2 + <-- pixel center */ + + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + pxl = e1; + + if ( e1 > e2 ) + { + Int dropOutControl = left->flags & 7; + + + if ( e1 == e2 + ras.precision ) + { + switch ( dropOutControl ) + { + case 0: /* simple drop-outs including stubs */ + pxl = e2; + break; + + case 4: /* smart drop-outs including stubs */ + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + case 1: /* simple drop-outs excluding stubs */ + case 5: /* smart drop-outs excluding stubs */ + /* see Vertical_Sweep_Drop for details */ + + /* rightmost stub test */ + if ( left->next == right && + left->height <= 0 && + !( left->flags & Overshoot_Top && + x2 - x1 >= ras.precision_half ) ) + return; + + /* leftmost stub test */ + if ( right->next == left && + left->start == y && + !( left->flags & Overshoot_Bottom && + x2 - x1 >= ras.precision_half ) ) + return; + + if ( dropOutControl == 1 ) + pxl = e2; + else + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + default: /* modes 2, 3, 6, 7 */ + return; /* no drop-out control */ + } + + /* undocumented but confirmed: If the drop-out would result in a */ + /* pixel outside of the bounding box, use the pixel inside of the */ + /* bounding box instead */ + if ( pxl < 0 ) + pxl = e1; + else if ( TRUNC( pxl ) >= ras.target.rows ) + pxl = e2; + + /* check that the other pixel isn't set */ + e1 = pxl == e1 ? e2 : e1; + + e1 = TRUNC( e1 ); + + bits = ras.bTarget + ( y >> 3 ); + f1 = (Byte)( 0x80 >> ( y & 7 ) ); + + bits -= e1 * ras.target.pitch; + if ( ras.target.pitch > 0 ) + bits += ( ras.target.rows - 1 ) * ras.target.pitch; + + if ( e1 >= 0 && + e1 < ras.target.rows && + *bits & f1 ) + return; + } + else + return; + } + + bits = ras.bTarget + ( y >> 3 ); + f1 = (Byte)( 0x80 >> ( y & 7 ) ); + + e1 = TRUNC( pxl ); + + if ( e1 >= 0 && e1 < ras.target.rows ) + { + bits -= e1 * ras.target.pitch; + if ( ras.target.pitch > 0 ) + bits += ( ras.target.rows - 1 ) * ras.target.pitch; + + bits[0] |= f1; + } + } + + + static void + Horizontal_Sweep_Step( RAS_ARG ) + { + /* Nothing, really */ + FT_UNUSED_RASTER; + } + + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + + /*************************************************************************/ + /* */ + /* Vertical Gray Sweep Procedure Set */ + /* */ + /* These two routines are used during the vertical gray-levels sweep */ + /* phase by the generic Draw_Sweep() function. */ + /* */ + /* NOTES */ + /* */ + /* - The target pixmap's width *must* be a multiple of 4. */ + /* */ + /* - You have to use the function Vertical_Sweep_Span() for the gray */ + /* span call. */ + /* */ + /*************************************************************************/ + + static void + Vertical_Gray_Sweep_Init( RAS_ARGS Short* min, + Short* max ) + { + Long pitch, byte_len; + + + *min = *min & -2; + *max = ( *max + 3 ) & -2; + + ras.traceOfs = 0; + pitch = ras.target.pitch; + byte_len = -pitch; + ras.traceIncr = (Short)byte_len; + ras.traceG = ( *min / 2 ) * byte_len; + + if ( pitch > 0 ) + { + ras.traceG += ( ras.target.rows - 1 ) * pitch; + byte_len = -byte_len; + } + + ras.gray_min_x = (Short)byte_len; + ras.gray_max_x = -(Short)byte_len; + } + + + static void + Vertical_Gray_Sweep_Step( RAS_ARG ) + { + Int c1, c2; + PByte pix, bit, bit2; + short* count = (short*)count_table; + Byte* grays; + + + ras.traceOfs += ras.gray_width; + + if ( ras.traceOfs > ras.gray_width ) + { + pix = ras.gTarget + ras.traceG + ras.gray_min_x * 4; + grays = ras.grays; + + if ( ras.gray_max_x >= 0 ) + { + Long last_pixel = ras.target.width - 1; + Int last_cell = last_pixel >> 2; + Int last_bit = last_pixel & 3; + Bool over = 0; + + + if ( ras.gray_max_x >= last_cell && last_bit != 3 ) + { + ras.gray_max_x = last_cell - 1; + over = 1; + } + + if ( ras.gray_min_x < 0 ) + ras.gray_min_x = 0; + + bit = ras.bTarget + ras.gray_min_x; + bit2 = bit + ras.gray_width; + + c1 = ras.gray_max_x - ras.gray_min_x; + + while ( c1 >= 0 ) + { + c2 = count[*bit] + count[*bit2]; + + if ( c2 ) + { + pix[0] = grays[(c2 >> 12) & 0x000F]; + pix[1] = grays[(c2 >> 8 ) & 0x000F]; + pix[2] = grays[(c2 >> 4 ) & 0x000F]; + pix[3] = grays[ c2 & 0x000F]; + + *bit = 0; + *bit2 = 0; + } + + bit++; + bit2++; + pix += 4; + c1--; + } + + if ( over ) + { + c2 = count[*bit] + count[*bit2]; + if ( c2 ) + { + switch ( last_bit ) + { + case 2: + pix[2] = grays[(c2 >> 4 ) & 0x000F]; + case 1: + pix[1] = grays[(c2 >> 8 ) & 0x000F]; + default: + pix[0] = grays[(c2 >> 12) & 0x000F]; + } + + *bit = 0; + *bit2 = 0; + } + } + } + + ras.traceOfs = 0; + ras.traceG += ras.traceIncr; + + ras.gray_min_x = 32000; + ras.gray_max_x = -32000; + } + } + + + static void + Horizontal_Gray_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + /* nothing, really */ + FT_UNUSED_RASTER; + FT_UNUSED( y ); + FT_UNUSED( x1 ); + FT_UNUSED( x2 ); + FT_UNUSED( left ); + FT_UNUSED( right ); + } + + + static void + Horizontal_Gray_Sweep_Drop( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2; + PByte pixel; + Byte color; + + + /* During the horizontal sweep, we only take care of drop-outs */ + + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + + if ( e1 > e2 ) + { + Int dropOutControl = left->flags & 7; + + + if ( e1 == e2 + ras.precision ) + { + switch ( dropOutControl ) + { + case 0: /* simple drop-outs including stubs */ + e1 = e2; + break; + + case 4: /* smart drop-outs including stubs */ + e1 = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + case 1: /* simple drop-outs excluding stubs */ + case 5: /* smart drop-outs excluding stubs */ + /* see Vertical_Sweep_Drop for details */ + + /* rightmost stub test */ + if ( left->next == right && left->height <= 0 ) + return; + + /* leftmost stub test */ + if ( right->next == left && left->start == y ) + return; + + if ( dropOutControl == 1 ) + e1 = e2; + else + e1 = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + + break; + + default: /* modes 2, 3, 6, 7 */ + return; /* no drop-out control */ + } + } + else + return; + } + + if ( e1 >= 0 ) + { + if ( x2 - x1 >= ras.precision_half ) + color = ras.grays[2]; + else + color = ras.grays[1]; + + e1 = TRUNC( e1 ) / 2; + if ( e1 < ras.target.rows ) + { + pixel = ras.gTarget - e1 * ras.target.pitch + y / 2; + if ( ras.target.pitch > 0 ) + pixel += ( ras.target.rows - 1 ) * ras.target.pitch; + + if ( pixel[0] == ras.grays[0] ) + pixel[0] = color; + } + } + } + + +#endif /* FT_RASTER_OPTION_ANTI_ALIASING */ + + + /*************************************************************************/ + /* */ + /* Generic Sweep Drawing routine */ + /* */ + /*************************************************************************/ + + static Bool + Draw_Sweep( RAS_ARG ) + { + Short y, y_change, y_height; + + PProfile P, Q, P_Left, P_Right; + + Short min_Y, max_Y, top, bottom, dropouts; + + Long x1, x2, xs, e1, e2; + + TProfileList waiting; + TProfileList draw_left, draw_right; + + + /* initialize empty linked lists */ + + Init_Linked( &waiting ); + + Init_Linked( &draw_left ); + Init_Linked( &draw_right ); + + /* first, compute min and max Y */ + + P = ras.fProfile; + max_Y = (Short)TRUNC( ras.minY ); + min_Y = (Short)TRUNC( ras.maxY ); + + while ( P ) + { + Q = P->link; + + bottom = (Short)P->start; + top = (Short)( P->start + P->height - 1 ); + + if ( min_Y > bottom ) + min_Y = bottom; + if ( max_Y < top ) + max_Y = top; + + P->X = 0; + InsNew( &waiting, P ); + + P = Q; + } + + /* check the Y-turns */ + if ( ras.numTurns == 0 ) + { + ras.error = Raster_Err_Invalid; + return FAILURE; + } + + /* now initialize the sweep */ + + ras.Proc_Sweep_Init( RAS_VARS &min_Y, &max_Y ); + + /* then compute the distance of each profile from min_Y */ + + P = waiting; + + while ( P ) + { + P->countL = (UShort)( P->start - min_Y ); + P = P->link; + } + + /* let's go */ + + y = min_Y; + y_height = 0; + + if ( ras.numTurns > 0 && + ras.sizeBuff[-ras.numTurns] == min_Y ) + ras.numTurns--; + + while ( ras.numTurns > 0 ) + { + /* check waiting list for new activations */ + + P = waiting; + + while ( P ) + { + Q = P->link; + P->countL -= y_height; + if ( P->countL == 0 ) + { + DelOld( &waiting, P ); + + if ( P->flags & Flow_Up ) + InsNew( &draw_left, P ); + else + InsNew( &draw_right, P ); + } + + P = Q; + } + + /* sort the drawing lists */ + + Sort( &draw_left ); + Sort( &draw_right ); + + y_change = (Short)ras.sizeBuff[-ras.numTurns--]; + y_height = (Short)( y_change - y ); + + while ( y < y_change ) + { + /* let's trace */ + + dropouts = 0; + + P_Left = draw_left; + P_Right = draw_right; + + while ( P_Left ) + { + x1 = P_Left ->X; + x2 = P_Right->X; + + if ( x1 > x2 ) + { + xs = x1; + x1 = x2; + x2 = xs; + } + + e1 = FLOOR( x1 ); + e2 = CEILING( x2 ); + + if ( x2 - x1 <= ras.precision && + e1 != x1 && e2 != x2 ) + { + if ( e1 > e2 || e2 == e1 + ras.precision ) + { + Int dropOutControl = P_Left->flags & 7; + + + if ( dropOutControl != 2 ) + { + /* a drop-out was detected */ + + P_Left ->X = x1; + P_Right->X = x2; + + /* mark profile for drop-out processing */ + P_Left->countL = 1; + dropouts++; + } + + goto Skip_To_Next; + } + } + + ras.Proc_Sweep_Span( RAS_VARS y, x1, x2, P_Left, P_Right ); + + Skip_To_Next: + + P_Left = P_Left->link; + P_Right = P_Right->link; + } + + /* handle drop-outs _after_ the span drawing -- */ + /* drop-out processing has been moved out of the loop */ + /* for performance tuning */ + if ( dropouts > 0 ) + goto Scan_DropOuts; + + Next_Line: + + ras.Proc_Sweep_Step( RAS_VAR ); + + y++; + + if ( y < y_change ) + { + Sort( &draw_left ); + Sort( &draw_right ); + } + } + + /* now finalize the profiles that need it */ + + P = draw_left; + while ( P ) + { + Q = P->link; + if ( P->height == 0 ) + DelOld( &draw_left, P ); + P = Q; + } + + P = draw_right; + while ( P ) + { + Q = P->link; + if ( P->height == 0 ) + DelOld( &draw_right, P ); + P = Q; + } + } + + /* for gray-scaling, flush the bitmap scanline cache */ + while ( y <= max_Y ) + { + ras.Proc_Sweep_Step( RAS_VAR ); + y++; + } + + return SUCCESS; + + Scan_DropOuts: + + P_Left = draw_left; + P_Right = draw_right; + + while ( P_Left ) + { + if ( P_Left->countL ) + { + P_Left->countL = 0; +#if 0 + dropouts--; /* -- this is useful when debugging only */ +#endif + ras.Proc_Sweep_Drop( RAS_VARS y, + P_Left->X, + P_Right->X, + P_Left, + P_Right ); + } + + P_Left = P_Left->link; + P_Right = P_Right->link; + } + + goto Next_Line; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Render_Single_Pass */ + /* */ + /* <Description> */ + /* Perform one sweep with sub-banding. */ + /* */ + /* <Input> */ + /* flipped :: If set, flip the direction of the outline. */ + /* */ + /* <Return> */ + /* Renderer error code. */ + /* */ + static int + Render_Single_Pass( RAS_ARGS Bool flipped ) + { + Short i, j, k; + + + while ( ras.band_top >= 0 ) + { + ras.maxY = (Long)ras.band_stack[ras.band_top].y_max * ras.precision; + ras.minY = (Long)ras.band_stack[ras.band_top].y_min * ras.precision; + + ras.top = ras.buff; + + ras.error = Raster_Err_None; + + if ( Convert_Glyph( RAS_VARS flipped ) ) + { + if ( ras.error != Raster_Err_Overflow ) + return FAILURE; + + ras.error = Raster_Err_None; + + /* sub-banding */ + +#ifdef DEBUG_RASTER + ClearBand( RAS_VARS TRUNC( ras.minY ), TRUNC( ras.maxY ) ); +#endif + + i = ras.band_stack[ras.band_top].y_min; + j = ras.band_stack[ras.band_top].y_max; + + k = (Short)( ( i + j ) / 2 ); + + if ( ras.band_top >= 7 || k < i ) + { + ras.band_top = 0; + ras.error = Raster_Err_Invalid; + + return ras.error; + } + + ras.band_stack[ras.band_top + 1].y_min = k; + ras.band_stack[ras.band_top + 1].y_max = j; + + ras.band_stack[ras.band_top].y_max = (Short)( k - 1 ); + + ras.band_top++; + } + else + { + if ( ras.fProfile ) + if ( Draw_Sweep( RAS_VAR ) ) + return ras.error; + ras.band_top--; + } + } + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Render_Glyph */ + /* */ + /* <Description> */ + /* Render a glyph in a bitmap. Sub-banding if needed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + Render_Glyph( RAS_ARG ) + { + FT_Error error; + + + Set_High_Precision( RAS_VARS ras.outline.flags & + FT_OUTLINE_HIGH_PRECISION ); + ras.scale_shift = ras.precision_shift; + + if ( ras.outline.flags & FT_OUTLINE_IGNORE_DROPOUTS ) + ras.dropOutControl = 2; + else + { + if ( ras.outline.flags & FT_OUTLINE_SMART_DROPOUTS ) + ras.dropOutControl = 4; + else + ras.dropOutControl = 0; + + if ( !( ras.outline.flags & FT_OUTLINE_INCLUDE_STUBS ) ) + ras.dropOutControl += 1; + } + + ras.second_pass = (FT_Byte)( !( ras.outline.flags & + FT_OUTLINE_SINGLE_PASS ) ); + + /* Vertical Sweep */ + ras.Proc_Sweep_Init = Vertical_Sweep_Init; + ras.Proc_Sweep_Span = Vertical_Sweep_Span; + ras.Proc_Sweep_Drop = Vertical_Sweep_Drop; + ras.Proc_Sweep_Step = Vertical_Sweep_Step; + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = (short)( ras.target.rows - 1 ); + + ras.bWidth = (unsigned short)ras.target.width; + ras.bTarget = (Byte*)ras.target.buffer; + + if ( ( error = Render_Single_Pass( RAS_VARS 0 ) ) != 0 ) + return error; + + /* Horizontal Sweep */ + if ( ras.second_pass && ras.dropOutControl != 2 ) + { + ras.Proc_Sweep_Init = Horizontal_Sweep_Init; + ras.Proc_Sweep_Span = Horizontal_Sweep_Span; + ras.Proc_Sweep_Drop = Horizontal_Sweep_Drop; + ras.Proc_Sweep_Step = Horizontal_Sweep_Step; + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = (short)( ras.target.width - 1 ); + + if ( ( error = Render_Single_Pass( RAS_VARS 1 ) ) != 0 ) + return error; + } + + return Raster_Err_None; + } + + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Render_Gray_Glyph */ + /* */ + /* <Description> */ + /* Render a glyph with grayscaling. Sub-banding if needed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + Render_Gray_Glyph( RAS_ARG ) + { + Long pixel_width; + FT_Error error; + + + Set_High_Precision( RAS_VARS ras.outline.flags & + FT_OUTLINE_HIGH_PRECISION ); + ras.scale_shift = ras.precision_shift + 1; + + if ( ras.outline.flags & FT_OUTLINE_IGNORE_DROPOUTS ) + ras.dropOutControl = 2; + else + { + if ( ras.outline.flags & FT_OUTLINE_SMART_DROPOUTS ) + ras.dropOutControl = 4; + else + ras.dropOutControl = 0; + + if ( !( ras.outline.flags & FT_OUTLINE_INCLUDE_STUBS ) ) + ras.dropOutControl += 1; + } + + ras.second_pass = !( ras.outline.flags & FT_OUTLINE_SINGLE_PASS ); + + /* Vertical Sweep */ + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = 2 * ras.target.rows - 1; + + ras.bWidth = ras.gray_width; + pixel_width = 2 * ( ( ras.target.width + 3 ) >> 2 ); + + if ( ras.bWidth > pixel_width ) + ras.bWidth = pixel_width; + + ras.bWidth = ras.bWidth * 8; + ras.bTarget = (Byte*)ras.gray_lines; + ras.gTarget = (Byte*)ras.target.buffer; + + ras.Proc_Sweep_Init = Vertical_Gray_Sweep_Init; + ras.Proc_Sweep_Span = Vertical_Sweep_Span; + ras.Proc_Sweep_Drop = Vertical_Sweep_Drop; + ras.Proc_Sweep_Step = Vertical_Gray_Sweep_Step; + + error = Render_Single_Pass( RAS_VARS 0 ); + if ( error ) + return error; + + /* Horizontal Sweep */ + if ( ras.second_pass && ras.dropOutControl != 2 ) + { + ras.Proc_Sweep_Init = Horizontal_Sweep_Init; + ras.Proc_Sweep_Span = Horizontal_Gray_Sweep_Span; + ras.Proc_Sweep_Drop = Horizontal_Gray_Sweep_Drop; + ras.Proc_Sweep_Step = Horizontal_Sweep_Step; + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = ras.target.width * 2 - 1; + + error = Render_Single_Pass( RAS_VARS 1 ); + if ( error ) + return error; + } + + return Raster_Err_None; + } + +#else /* !FT_RASTER_OPTION_ANTI_ALIASING */ + + FT_LOCAL_DEF( FT_Error ) + Render_Gray_Glyph( RAS_ARG ) + { + FT_UNUSED_RASTER; + + return Raster_Err_Unsupported; + } + +#endif /* !FT_RASTER_OPTION_ANTI_ALIASING */ + + + static void + ft_black_init( PRaster raster ) + { +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + FT_UInt n; + + + /* set default 5-levels gray palette */ + for ( n = 0; n < 5; n++ ) + raster->grays[n] = n * 255 / 4; + + raster->gray_width = RASTER_GRAY_LINES / 2; +#else + FT_UNUSED( raster ); +#endif + } + + + /**** RASTER OBJECT CREATION: In standalone mode, we simply use *****/ + /**** a static object. *****/ + + +#ifdef _STANDALONE_ + + + static int + ft_black_new( void* memory, + FT_Raster *araster ) + { + static TRaster the_raster; + FT_UNUSED( memory ); + + + *araster = (FT_Raster)&the_raster; + FT_MEM_ZERO( &the_raster, sizeof ( the_raster ) ); + ft_black_init( &the_raster ); + + return 0; + } + + + static void + ft_black_done( FT_Raster raster ) + { + /* nothing */ + FT_UNUSED( raster ); + } + + +#else /* !_STANDALONE_ */ + + + static int + ft_black_new( FT_Memory memory, + PRaster *araster ) + { + FT_Error error; + PRaster raster = NULL; + + + *araster = 0; + if ( !FT_NEW( raster ) ) + { + raster->memory = memory; + ft_black_init( raster ); + + *araster = raster; + } + + return error; + } + + + static void + ft_black_done( PRaster raster ) + { + FT_Memory memory = (FT_Memory)raster->memory; + FT_FREE( raster ); + } + + +#endif /* !_STANDALONE_ */ + + + static void + ft_black_reset( PRaster raster, + char* pool_base, + long pool_size ) + { + if ( raster ) + { + if ( pool_base && pool_size >= (long)sizeof(TWorker) + 2048 ) + { + PWorker worker = (PWorker)pool_base; + + + raster->buffer = pool_base + ( ( sizeof ( *worker ) + 7 ) & ~7 ); + raster->buffer_size = pool_base + pool_size - (char*)raster->buffer; + raster->worker = worker; + } + else + { + raster->buffer = NULL; + raster->buffer_size = 0; + raster->worker = NULL; + } + } + } + + + static void + ft_black_set_mode( PRaster raster, + unsigned long mode, + const char* palette ) + { +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + if ( mode == FT_MAKE_TAG( 'p', 'a', 'l', '5' ) ) + { + /* set 5-levels gray palette */ + raster->grays[0] = palette[0]; + raster->grays[1] = palette[1]; + raster->grays[2] = palette[2]; + raster->grays[3] = palette[3]; + raster->grays[4] = palette[4]; + } + +#else + + FT_UNUSED( raster ); + FT_UNUSED( mode ); + FT_UNUSED( palette ); + +#endif + } + + + static int + ft_black_render( PRaster raster, + const FT_Raster_Params* params ) + { + const FT_Outline* outline = (const FT_Outline*)params->source; + const FT_Bitmap* target_map = params->target; + PWorker worker; + + + if ( !raster || !raster->buffer || !raster->buffer_size ) + return Raster_Err_Not_Ini; + + if ( !outline ) + return Raster_Err_Invalid; + + /* return immediately if the outline is empty */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + return Raster_Err_None; + + if ( !outline->contours || !outline->points ) + return Raster_Err_Invalid; + + if ( outline->n_points != + outline->contours[outline->n_contours - 1] + 1 ) + return Raster_Err_Invalid; + + worker = raster->worker; + + /* this version of the raster does not support direct rendering, sorry */ + if ( params->flags & FT_RASTER_FLAG_DIRECT ) + return Raster_Err_Unsupported; + + if ( !target_map ) + return Raster_Err_Invalid; + + /* nothing to do */ + if ( !target_map->width || !target_map->rows ) + return Raster_Err_None; + + if ( !target_map->buffer ) + return Raster_Err_Invalid; + + ras.outline = *outline; + ras.target = *target_map; + + worker->buff = (PLong) raster->buffer; + worker->sizeBuff = worker->buff + + raster->buffer_size / sizeof ( Long ); +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + worker->grays = raster->grays; + worker->gray_width = raster->gray_width; + + FT_MEM_ZERO( worker->gray_lines, worker->gray_width * 2 ); +#endif + + return ( params->flags & FT_RASTER_FLAG_AA ) + ? Render_Gray_Glyph( RAS_VAR ) + : Render_Glyph( RAS_VAR ); + } + + + FT_DEFINE_RASTER_FUNCS( ft_standard_raster, + FT_GLYPH_FORMAT_OUTLINE, + (FT_Raster_New_Func) ft_black_new, + (FT_Raster_Reset_Func) ft_black_reset, + (FT_Raster_Set_Mode_Func)ft_black_set_mode, + (FT_Raster_Render_Func) ft_black_render, + (FT_Raster_Done_Func) ft_black_done + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/ftraster.h b/uppsrc/plugin/FT_fontsys/src/raster/ftraster.h new file mode 100644 index 000000000..991017deb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/ftraster.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* ftraster.h */ +/* */ +/* The FreeType glyph rasterizer (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTRASTER_H__ +#define __FTRASTER_H__ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_IMAGE_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* Uncomment the following line if you are using ftraster.c as a */ + /* standalone module, fully independent of FreeType. */ + /* */ +/* #define _STANDALONE_ */ + + FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_standard_raster; + + +FT_END_HEADER + +#endif /* __FTRASTER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/ftrend1.c b/uppsrc/plugin/FT_fontsys/src/raster/ftrend1.c new file mode 100644 index 000000000..6633e3e12 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/ftrend1.c @@ -0,0 +1,299 @@ +/***************************************************************************/ +/* */ +/* ftrend1.c */ +/* */ +/* The FreeType glyph rasterizer interface (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_OUTLINE_H +#include "ftrend1.h" +#include "ftraster.h" +#include "rastpic.h" + +#include "rasterrs.h" + + + /* initialize renderer -- init its raster */ + static FT_Error + ft_raster1_init( FT_Renderer render ) + { + FT_Library library = FT_MODULE_LIBRARY( render ); + + + render->clazz->raster_class->raster_reset( render->raster, + library->raster_pool, + library->raster_pool_size ); + + return Raster_Err_Ok; + } + + + /* set render-specific mode */ + static FT_Error + ft_raster1_set_mode( FT_Renderer render, + FT_ULong mode_tag, + FT_Pointer data ) + { + /* we simply pass it to the raster */ + return render->clazz->raster_class->raster_set_mode( render->raster, + mode_tag, + data ); + } + + + /* transform a given glyph image */ + static FT_Error + ft_raster1_transform( FT_Renderer render, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_Error error = Raster_Err_Ok; + + + if ( slot->format != render->glyph_format ) + { + error = Raster_Err_Invalid_Argument; + goto Exit; + } + + if ( matrix ) + FT_Outline_Transform( &slot->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &slot->outline, delta->x, delta->y ); + + Exit: + return error; + } + + + /* return the glyph's control box */ + static void + ft_raster1_get_cbox( FT_Renderer render, + FT_GlyphSlot slot, + FT_BBox* cbox ) + { + FT_MEM_ZERO( cbox, sizeof ( *cbox ) ); + + if ( slot->format == render->glyph_format ) + FT_Outline_Get_CBox( &slot->outline, cbox ); + } + + + /* convert a slot's glyph image into a bitmap */ + static FT_Error + ft_raster1_render( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error; + FT_Outline* outline; + FT_BBox cbox; + FT_UInt width, height, pitch; + FT_Bitmap* bitmap; + FT_Memory memory; + + FT_Raster_Params params; + + + /* check glyph image format */ + if ( slot->format != render->glyph_format ) + { + error = Raster_Err_Invalid_Argument; + goto Exit; + } + + /* check rendering mode */ +#ifndef FT_CONFIG_OPTION_PIC + if ( mode != FT_RENDER_MODE_MONO ) + { + /* raster1 is only capable of producing monochrome bitmaps */ + if ( render->clazz == &ft_raster1_renderer_class ) + return Raster_Err_Cannot_Render_Glyph; + } + else + { + /* raster5 is only capable of producing 5-gray-levels bitmaps */ + if ( render->clazz == &ft_raster5_renderer_class ) + return Raster_Err_Cannot_Render_Glyph; + } +#else /* FT_CONFIG_OPTION_PIC */ + /* When PIC is enabled, we cannot get to the class object */ + /* so instead we check the final character in the class name */ + /* ("raster5" or "raster1"). Yes this is a hack. */ + /* The "correct" thing to do is have different render function */ + /* for each of the classes. */ + if ( mode != FT_RENDER_MODE_MONO ) + { + /* raster1 is only capable of producing monochrome bitmaps */ + if ( render->clazz->root.module_name[6] == '1' ) + return Raster_Err_Cannot_Render_Glyph; + } + else + { + /* raster5 is only capable of producing 5-gray-levels bitmaps */ + if ( render->clazz->root.module_name[6] == '5' ) + return Raster_Err_Cannot_Render_Glyph; + } +#endif /* FT_CONFIG_OPTION_PIC */ + + outline = &slot->outline; + + /* translate the outline to the new origin if needed */ + if ( origin ) + FT_Outline_Translate( outline, origin->x, origin->y ); + + /* compute the control box, and grid fit it */ + FT_Outline_Get_CBox( outline, &cbox ); + + /* undocumented but confirmed: bbox values get rounded */ +#if 1 + cbox.xMin = FT_PIX_ROUND( cbox.xMin ); + cbox.yMin = FT_PIX_ROUND( cbox.yMin ); + cbox.xMax = FT_PIX_ROUND( cbox.xMax ); + cbox.yMax = FT_PIX_ROUND( cbox.yMax ); +#else + cbox.xMin = FT_PIX_FLOOR( cbox.xMin ); + cbox.yMin = FT_PIX_FLOOR( cbox.yMin ); + cbox.xMax = FT_PIX_CEIL( cbox.xMax ); + cbox.yMax = FT_PIX_CEIL( cbox.yMax ); +#endif + + width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 ); + height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 ); + bitmap = &slot->bitmap; + memory = render->root.memory; + + /* release old bitmap buffer */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + /* allocate new one, depends on pixel format */ + if ( !( mode & FT_RENDER_MODE_MONO ) ) + { + /* we pad to 32 bits, only for backwards compatibility with FT 1.x */ + pitch = FT_PAD_CEIL( width, 4 ); + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->num_grays = 256; + } + else + { + pitch = ( ( width + 15 ) >> 4 ) << 1; + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + } + + bitmap->width = width; + bitmap->rows = height; + bitmap->pitch = pitch; + + if ( FT_ALLOC_MULT( bitmap->buffer, pitch, height ) ) + goto Exit; + + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + /* translate outline to render it into the bitmap */ + FT_Outline_Translate( outline, -cbox.xMin, -cbox.yMin ); + + /* set up parameters */ + params.target = bitmap; + params.source = outline; + params.flags = 0; + + if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY ) + params.flags |= FT_RASTER_FLAG_AA; + + /* render outline into the bitmap */ + error = render->raster_render( render->raster, ¶ms ); + + FT_Outline_Translate( outline, cbox.xMin, cbox.yMin ); + + if ( error ) + goto Exit; + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = (FT_Int)( cbox.xMin >> 6 ); + slot->bitmap_top = (FT_Int)( cbox.yMax >> 6 ); + + Exit: + return error; + } + + + FT_DEFINE_RENDERER(ft_raster1_renderer_class, + + FT_MODULE_RENDERER, + sizeof( FT_RendererRec ), + + "raster1", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_raster1_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_raster1_render, + (FT_Renderer_TransformFunc)ft_raster1_transform, + (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox, + (FT_Renderer_SetModeFunc) ft_raster1_set_mode, + + (FT_Raster_Funcs*) &FT_STANDARD_RASTER_GET + ) + + + /* This renderer is _NOT_ part of the default modules; you will need */ + /* to register it by hand in your application. It should only be */ + /* used for backwards-compatibility with FT 1.x anyway. */ + /* */ + FT_DEFINE_RENDERER(ft_raster5_renderer_class, + + + FT_MODULE_RENDERER, + sizeof( FT_RendererRec ), + + "raster5", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_raster1_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_raster1_render, + (FT_Renderer_TransformFunc)ft_raster1_transform, + (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox, + (FT_Renderer_SetModeFunc) ft_raster1_set_mode, + + (FT_Raster_Funcs*) &FT_STANDARD_RASTER_GET + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/ftrend1.h b/uppsrc/plugin/FT_fontsys/src/raster/ftrend1.h new file mode 100644 index 000000000..c5fd77b43 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/ftrend1.h @@ -0,0 +1,44 @@ +/***************************************************************************/ +/* */ +/* ftrend1.h */ +/* */ +/* The FreeType glyph rasterizer interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTREND1_H__ +#define __FTREND1_H__ + + +#include <freetype/ft2build.h> +#include FT_RENDER_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_RENDERER( ft_raster1_renderer_class ) + + /* this renderer is _NOT_ part of the default modules, you'll need */ + /* to register it by hand in your application. It should only be */ + /* used for backwards-compatibility with FT 1.x anyway. */ + /* */ + FT_DECLARE_RENDERER( ft_raster5_renderer_class ) + + +FT_END_HEADER + +#endif /* __FTREND1_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/raster.c b/uppsrc/plugin/FT_fontsys/src/raster/raster.c new file mode 100644 index 000000000..5c2926f47 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/raster.c @@ -0,0 +1,27 @@ +/***************************************************************************/ +/* */ +/* raster.c */ +/* */ +/* FreeType monochrome rasterer module component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "rastpic.c" +#include "ftraster.c" +#include "ftrend1.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/rasterrs.h b/uppsrc/plugin/FT_fontsys/src/raster/rasterrs.h new file mode 100644 index 000000000..5df9a7ab1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/rasterrs.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* rasterrs.h */ +/* */ +/* monochrome renderer error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the monochrome renderer error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __RASTERRS_H__ +#define __RASTERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX Raster_Err_ +#define FT_ERR_BASE FT_Mod_Err_Raster + +#include FT_ERRORS_H + +#endif /* __RASTERRS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/rastpic.c b/uppsrc/plugin/FT_fontsys/src/raster/rastpic.c new file mode 100644 index 000000000..00bba1247 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/rastpic.c @@ -0,0 +1,90 @@ +/***************************************************************************/ +/* */ +/* rastpic.c */ +/* */ +/* The FreeType position independent code services for raster module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "rastpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ftraster.c */ + void FT_Init_Class_ft_standard_raster(FT_Raster_Funcs*); + + void + ft_raster1_renderer_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->raster ) + { + RasterPIC* container = (RasterPIC*)pic_container->raster; + if(--container->ref_count) + return; + FT_FREE( container ); + pic_container->raster = NULL; + } + } + + + FT_Error + ft_raster1_renderer_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = Raster_Err_Ok; + RasterPIC* container; + FT_Memory memory = library->memory; + + + /* since this function also serve raster5 renderer, + it implements reference counting */ + if ( pic_container->raster ) + { + ((RasterPIC*)pic_container->raster)->ref_count++; + return error; + } + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof(*container) ); + pic_container->raster = container; + container->ref_count = 1; + + /* initialize pointer table - this is how the module usually expects this data */ + FT_Init_Class_ft_standard_raster(&container->ft_standard_raster); +/*Exit:*/ + if(error) + ft_raster1_renderer_class_pic_free(library); + return error; + } + + /* re-route these init and free functions to the above functions */ + FT_Error ft_raster5_renderer_class_pic_init(FT_Library library) + { + return ft_raster1_renderer_class_pic_init(library); + } + void ft_raster5_renderer_class_pic_free(FT_Library library) + { + ft_raster1_renderer_class_pic_free(library); + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/raster/rastpic.h b/uppsrc/plugin/FT_fontsys/src/raster/rastpic.h new file mode 100644 index 000000000..dcd82b8ca --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/raster/rastpic.h @@ -0,0 +1,50 @@ +/***************************************************************************/ +/* */ +/* rastpic.h */ +/* */ +/* The FreeType position independent code services for raster module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __RASTPIC_H__ +#define __RASTPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_STANDARD_RASTER_GET ft_standard_raster + +#else /* FT_CONFIG_OPTION_PIC */ + + typedef struct RasterPIC_ + { + int ref_count; + FT_Raster_Funcs ft_standard_raster; + } RasterPIC; + +#define GET_PIC(lib) ((RasterPIC*)((lib)->pic_container.raster)) +#define FT_STANDARD_RASTER_GET (GET_PIC(library)->ft_standard_raster) + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __RASTPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.c b/uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.c new file mode 100644 index 000000000..0528a4764 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.c @@ -0,0 +1,656 @@ +/***************************************************************************/ +/* */ +/* sfdriver.c */ +/* */ +/* High-level SFNT driver interface (body). */ +/* */ +/* Copyright 1996-2007, 2009-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_SFNT_H +#include FT_INTERNAL_OBJECTS_H + +#include "sfdriver.h" +#include "ttload.h" +#include "sfobjs.h" +#include "sfntpic.h" + +#include "sferrors.h" + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#include "ttsbit.h" +#endif + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#include "ttpost.h" +#endif + +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#include FT_SERVICE_BDF_H +#endif + +#include "ttcmap.h" +#include "ttkern.h" +#include "ttmtx.h" + +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TT_CMAP_H + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_sfdriver + + + /* + * SFNT TABLE SERVICE + * + */ + + static void* + get_sfnt_table( TT_Face face, + FT_Sfnt_Tag tag ) + { + void* table; + + + switch ( tag ) + { + case ft_sfnt_head: + table = &face->header; + break; + + case ft_sfnt_hhea: + table = &face->horizontal; + break; + + case ft_sfnt_vhea: + table = face->vertical_info ? &face->vertical : 0; + break; + + case ft_sfnt_os2: + table = face->os2.version == 0xFFFFU ? 0 : &face->os2; + break; + + case ft_sfnt_post: + table = &face->postscript; + break; + + case ft_sfnt_maxp: + table = &face->max_profile; + break; + + case ft_sfnt_pclt: + table = face->pclt.Version ? &face->pclt : 0; + break; + + default: + table = 0; + } + + return table; + } + + + static FT_Error + sfnt_table_info( TT_Face face, + FT_UInt idx, + FT_ULong *tag, + FT_ULong *offset, + FT_ULong *length ) + { + if ( !offset || !length ) + return SFNT_Err_Invalid_Argument; + + if ( !tag ) + *length = face->num_tables; + else + { + if ( idx >= face->num_tables ) + return SFNT_Err_Table_Missing; + + *tag = face->dir_tables[idx].Tag; + *offset = face->dir_tables[idx].Offset; + *length = face->dir_tables[idx].Length; + } + + return SFNT_Err_Ok; + } + + + FT_DEFINE_SERVICE_SFNT_TABLEREC(sfnt_service_sfnt_table, + (FT_SFNT_TableLoadFunc)tt_face_load_any, + (FT_SFNT_TableGetFunc) get_sfnt_table, + (FT_SFNT_TableInfoFunc)sfnt_table_info + ) + + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + + /* + * GLYPH DICT SERVICE + * + */ + + static FT_Error + sfnt_get_glyph_name( TT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_String* gname; + FT_Error error; + + + error = tt_face_get_ps_name( face, glyph_index, &gname ); + if ( !error ) + FT_STRCPYN( buffer, gname, buffer_max ); + + return error; + } + + + static FT_UInt + sfnt_get_name_index( TT_Face face, + FT_String* glyph_name ) + { + FT_Face root = &face->root; + FT_UInt i, max_gid = FT_UINT_MAX; + + + if ( root->num_glyphs < 0 ) + return 0; + else if ( ( FT_ULong ) root->num_glyphs < FT_UINT_MAX ) + max_gid = ( FT_UInt ) root->num_glyphs; + else + FT_TRACE0(( "Ignore glyph names for invalid GID 0x%08x - 0x%08x\n", + FT_UINT_MAX, root->num_glyphs )); + + for ( i = 0; i < max_gid; i++ ) + { + FT_String* gname; + FT_Error error = tt_face_get_ps_name( face, i, &gname ); + + + if ( error ) + continue; + + if ( !ft_strcmp( glyph_name, gname ) ) + return i; + } + + return 0; + } + + + FT_DEFINE_SERVICE_GLYPHDICTREC(sfnt_service_glyph_dict, + (FT_GlyphDict_GetNameFunc) sfnt_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)sfnt_get_name_index + ) + +#endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + sfnt_get_ps_name( TT_Face face ) + { + FT_Int n, found_win, found_apple; + const char* result = NULL; + + + /* shouldn't happen, but just in case to avoid memory leaks */ + if ( face->postscript_name ) + return face->postscript_name; + + /* scan the name table to see whether we have a Postscript name here, */ + /* either in Macintosh or Windows platform encodings */ + found_win = -1; + found_apple = -1; + + for ( n = 0; n < face->num_names; n++ ) + { + TT_NameEntryRec* name = face->name_table.names + n; + + + if ( name->nameID == 6 && name->stringLength > 0 ) + { + if ( name->platformID == 3 && + name->encodingID == 1 && + name->languageID == 0x409 ) + found_win = n; + + if ( name->platformID == 1 && + name->encodingID == 0 && + name->languageID == 0 ) + found_apple = n; + } + } + + if ( found_win != -1 ) + { + FT_Memory memory = face->root.memory; + TT_NameEntryRec* name = face->name_table.names + found_win; + FT_UInt len = name->stringLength / 2; + FT_Error error = SFNT_Err_Ok; + + FT_UNUSED( error ); + + + if ( !FT_ALLOC( result, name->stringLength + 1 ) ) + { + FT_Stream stream = face->name_table.stream; + FT_String* r = (FT_String*)result; + FT_Byte* p = (FT_Byte*)name->string; + + + if ( FT_STREAM_SEEK( name->stringOffset ) || + FT_FRAME_ENTER( name->stringLength ) ) + { + FT_FREE( result ); + name->stringLength = 0; + name->stringOffset = 0; + FT_FREE( name->string ); + + goto Exit; + } + + p = (FT_Byte*)stream->cursor; + + for ( ; len > 0; len--, p += 2 ) + { + if ( p[0] == 0 && p[1] >= 32 && p[1] < 128 ) + *r++ = p[1]; + } + *r = '\0'; + + FT_FRAME_EXIT(); + } + goto Exit; + } + + if ( found_apple != -1 ) + { + FT_Memory memory = face->root.memory; + TT_NameEntryRec* name = face->name_table.names + found_apple; + FT_UInt len = name->stringLength; + FT_Error error = SFNT_Err_Ok; + + FT_UNUSED( error ); + + + if ( !FT_ALLOC( result, len + 1 ) ) + { + FT_Stream stream = face->name_table.stream; + + + if ( FT_STREAM_SEEK( name->stringOffset ) || + FT_STREAM_READ( result, len ) ) + { + name->stringOffset = 0; + name->stringLength = 0; + FT_FREE( name->string ); + FT_FREE( result ); + goto Exit; + } + ((char*)result)[len] = '\0'; + } + } + + Exit: + face->postscript_name = result; + return result; + } + + FT_DEFINE_SERVICE_PSFONTNAMEREC(sfnt_service_ps_name, + (FT_PsName_GetFunc)sfnt_get_ps_name + ) + + + /* + * TT CMAP INFO + */ + FT_DEFINE_SERVICE_TTCMAPSREC(tt_service_get_cmap_info, + (TT_CMap_Info_GetFunc)tt_get_cmap_info + ) + + +#ifdef TT_CONFIG_OPTION_BDF + + static FT_Error + sfnt_get_charset_id( TT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + BDF_PropertyRec encoding, registry; + FT_Error error; + + + /* XXX: I don't know whether this is correct, since + * tt_face_find_bdf_prop only returns something correct if we have + * previously selected a size that is listed in the BDF table. + * Should we change the BDF table format to include single offsets + * for `CHARSET_REGISTRY' and `CHARSET_ENCODING'? + */ + error = tt_face_find_bdf_prop( face, "CHARSET_REGISTRY", ®istry ); + if ( !error ) + { + error = tt_face_find_bdf_prop( face, "CHARSET_ENCODING", &encoding ); + if ( !error ) + { + if ( registry.type == BDF_PROPERTY_TYPE_ATOM && + encoding.type == BDF_PROPERTY_TYPE_ATOM ) + { + *acharset_encoding = encoding.u.atom; + *acharset_registry = registry.u.atom; + } + else + error = SFNT_Err_Invalid_Argument; + } + } + + return error; + } + + + FT_DEFINE_SERVICE_BDFRec(sfnt_service_bdf, + (FT_BDF_GetCharsetIdFunc) sfnt_get_charset_id, + (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop + ) + +#endif /* TT_CONFIG_OPTION_BDF */ + + + /* + * SERVICE LIST + */ + +#if defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES && defined TT_CONFIG_OPTION_BDF + FT_DEFINE_SERVICEDESCREC5(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_SFNT_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_BDF, &FT_SFNT_SERVICE_BDF_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_DEFINE_SERVICEDESCREC4(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_SFNT_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#elif defined TT_CONFIG_OPTION_BDF + FT_DEFINE_SERVICEDESCREC4(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_BDF, &FT_SFNT_SERVICE_BDF_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#else + FT_DEFINE_SERVICEDESCREC3(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#endif + + + FT_CALLBACK_DEF( FT_Module_Interface ) + sfnt_get_interface( FT_Module module, + const char* module_interface ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( FT_SFNT_SERVICES_GET, module_interface ); + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_sfnt_header_stub( TT_Face face, + FT_Stream stream, + FT_Long face_index, + SFNT_Header header ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + FT_UNUSED( face_index ); + FT_UNUSED( header ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_directory_stub( TT_Face face, + FT_Stream stream, + SFNT_Header header ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + FT_UNUSED( header ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_hdmx_stub( TT_Face face, + FT_Stream stream ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( void ) + tt_face_free_hdmx_stub( TT_Face face ) + { + FT_UNUSED( face ); + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_set_sbit_strike_stub( TT_Face face, + FT_UInt x_ppem, + FT_UInt y_ppem, + FT_ULong* astrike_index ) + { + /* + * We simply forge a FT_Size_Request and call the real function + * that does all the work. + * + * This stub might be called by libXfont in the X.Org Xserver, + * compiled against version 2.1.8 or newer. + */ + + FT_Size_RequestRec req; + + + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = (FT_F26Dot6)x_ppem; + req.height = (FT_F26Dot6)y_ppem; + req.horiResolution = 0; + req.vertResolution = 0; + + *astrike_index = 0x7FFFFFFFUL; + + return tt_face_set_sbit_strike( face, &req, astrike_index ); + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_sbit_stub( TT_Face face, + FT_Stream stream ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + + /* + * This function was originally implemented to load the sbit table. + * However, it has been replaced by `tt_face_load_eblc', and this stub + * is only there for some rogue clients which would want to call it + * directly (which doesn't make much sense). + */ + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( void ) + tt_face_free_sbit_stub( TT_Face face ) + { + /* nothing to do in this stub */ + FT_UNUSED( face ); + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_charmap_stub( TT_Face face, + void* cmap, + FT_Stream input ) + { + FT_UNUSED( face ); + FT_UNUSED( cmap ); + FT_UNUSED( input ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_free_charmap_stub( TT_Face face, + void* cmap ) + { + FT_UNUSED( face ); + FT_UNUSED( cmap ); + + return SFNT_Err_Ok; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define PUT_EMBEDDED_BITMAPS(a) a +#else +#define PUT_EMBEDDED_BITMAPS(a) 0 +#endif +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#define PUT_PS_NAMES(a) a +#else +#define PUT_PS_NAMES(a) 0 +#endif + + FT_DEFINE_SFNT_INTERFACE(sfnt_interface, + tt_face_goto_table, + + sfnt_init_face, + sfnt_load_face, + sfnt_done_face, + sfnt_get_interface, + + tt_face_load_any, + + tt_face_load_sfnt_header_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_load_directory_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_face_load_head, + tt_face_load_hhea, + tt_face_load_cmap, + tt_face_load_maxp, + tt_face_load_os2, + tt_face_load_post, + + tt_face_load_name, + tt_face_free_name, + + tt_face_load_hdmx_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_free_hdmx_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_face_load_kern, + tt_face_load_gasp, + tt_face_load_pclt, + + /* see `ttload.h' */ + PUT_EMBEDDED_BITMAPS(tt_face_load_bhed), + + tt_face_set_sbit_strike_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_load_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_find_sbit_image, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_load_sbit_metrics, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + PUT_EMBEDDED_BITMAPS(tt_face_load_sbit_image), + + tt_face_free_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /* see `ttpost.h' */ + PUT_PS_NAMES(tt_face_get_ps_name), + PUT_PS_NAMES(tt_face_free_ps_names), + + tt_face_load_charmap_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_free_charmap_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /* since version 2.1.8 */ + + tt_face_get_kerning, + + /* since version 2.2 */ + + tt_face_load_font_dir, + tt_face_load_hmtx, + + /* see `ttsbit.h' and `sfnt.h' */ + PUT_EMBEDDED_BITMAPS(tt_face_load_eblc), + PUT_EMBEDDED_BITMAPS(tt_face_free_eblc), + + PUT_EMBEDDED_BITMAPS(tt_face_set_sbit_strike), + PUT_EMBEDDED_BITMAPS(tt_face_load_strike_metrics), + + tt_face_get_metrics + ) + + + FT_DEFINE_MODULE(sfnt_module_class, + + 0, /* not a font driver or renderer */ + sizeof( FT_ModuleRec ), + + "sfnt", /* driver name */ + 0x10000L, /* driver version 1.0 */ + 0x20000L, /* driver requires FreeType 2.0 or higher */ + + (const void*)&FT_SFNT_INTERFACE_GET, /* module specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) sfnt_get_interface + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.h b/uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.h new file mode 100644 index 000000000..341e58deb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfdriver.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* sfdriver.h */ +/* */ +/* High-level SFNT driver interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFDRIVER_H__ +#define __SFDRIVER_H__ + + +#include <freetype/ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_MODULE( sfnt_module_class ) + + +FT_END_HEADER + +#endif /* __SFDRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sferrors.h b/uppsrc/plugin/FT_fontsys/src/sfnt/sferrors.h new file mode 100644 index 000000000..27f90de28 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sferrors.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* sferrors.h */ +/* */ +/* SFNT error codes (specification only). */ +/* */ +/* Copyright 2001, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the SFNT error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __SFERRORS_H__ +#define __SFERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX SFNT_Err_ +#define FT_ERR_BASE FT_Mod_Err_SFNT + +#define FT_KEEP_ERR_PREFIX + +#include FT_ERRORS_H + +#endif /* __SFERRORS_H__ */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfnt.c b/uppsrc/plugin/FT_fontsys/src/sfnt/sfnt.c new file mode 100644 index 000000000..cfb8914a9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfnt.c @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* sfnt.c */ +/* */ +/* Single object library component. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "sfntpic.c" +#include "ttload.c" +#include "ttmtx.c" +#include "ttcmap.c" +#include "ttkern.c" +#include "sfobjs.c" +#include "sfdriver.c" + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#include "ttsbit.c" +#endif + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#include "ttpost.c" +#endif + +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.c" +#endif + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.c b/uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.c new file mode 100644 index 000000000..6f25cf187 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.c @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* sfntpic.c */ +/* */ +/* The FreeType position independent code services for sfnt module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "sfntpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from sfdriver.c */ + FT_Error FT_Create_Class_sfnt_services( FT_Library, FT_ServiceDescRec**); + void FT_Destroy_Class_sfnt_services( FT_Library, FT_ServiceDescRec*); + void FT_Init_Class_sfnt_service_bdf( FT_Service_BDFRec*); + void FT_Init_Class_sfnt_interface( FT_Library, SFNT_Interface*); + void FT_Init_Class_sfnt_service_glyph_dict( FT_Library, FT_Service_GlyphDictRec*); + void FT_Init_Class_sfnt_service_ps_name( FT_Library, FT_Service_PsFontNameRec*); + void FT_Init_Class_tt_service_get_cmap_info( FT_Library, FT_Service_TTCMapsRec*); + void FT_Init_Class_sfnt_service_sfnt_table( FT_Service_SFNT_TableRec*); + + /* forward declaration of PIC init functions from ttcmap.c */ + FT_Error FT_Create_Class_tt_cmap_classes( FT_Library, TT_CMap_Class**); + void FT_Destroy_Class_tt_cmap_classes( FT_Library, TT_CMap_Class*); + + void + sfnt_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->sfnt ) + { + sfntModulePIC* container = (sfntModulePIC*)pic_container->sfnt; + if(container->sfnt_services) + FT_Destroy_Class_sfnt_services(library, container->sfnt_services); + container->sfnt_services = NULL; + if(container->tt_cmap_classes) + FT_Destroy_Class_tt_cmap_classes(library, container->tt_cmap_classes); + container->tt_cmap_classes = NULL; + FT_FREE( container ); + pic_container->sfnt = NULL; + } + } + + + FT_Error + sfnt_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = SFNT_Err_Ok; + sfntModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->sfnt = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_sfnt_services(library, &container->sfnt_services); + if(error) + goto Exit; + error = FT_Create_Class_tt_cmap_classes(library, &container->tt_cmap_classes); + if(error) + goto Exit; + FT_Init_Class_sfnt_service_glyph_dict(library, &container->sfnt_service_glyph_dict); + FT_Init_Class_sfnt_service_ps_name(library, &container->sfnt_service_ps_name); + FT_Init_Class_tt_service_get_cmap_info(library, &container->tt_service_get_cmap_info); + FT_Init_Class_sfnt_service_sfnt_table(&container->sfnt_service_sfnt_table); +#ifdef TT_CONFIG_OPTION_BDF + FT_Init_Class_sfnt_service_bdf(&container->sfnt_service_bdf); +#endif + FT_Init_Class_sfnt_interface(library, &container->sfnt_interface); + +Exit: + if(error) + sfnt_module_class_pic_free(library); + return error; + } + + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.h b/uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.h new file mode 100644 index 000000000..6943b4250 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfntpic.h @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* sfntpic.h */ +/* */ +/* The FreeType position independent code services for sfnt module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFNTPIC_H__ +#define __SFNTPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + + #ifndef FT_CONFIG_OPTION_PIC +#define FT_SFNT_SERVICES_GET sfnt_services +#define FT_SFNT_SERVICE_GLYPH_DICT_GET sfnt_service_glyph_dict +#define FT_SFNT_SERVICE_PS_NAME_GET sfnt_service_ps_name +#define FT_TT_SERVICE_GET_CMAP_INFO_GET tt_service_get_cmap_info +#define FT_SFNT_SERVICES_GET sfnt_services +#define FT_TT_CMAP_CLASSES_GET tt_cmap_classes +#define FT_SFNT_SERVICE_SFNT_TABLE_GET sfnt_service_sfnt_table +#define FT_SFNT_SERVICE_BDF_GET sfnt_service_bdf +#define FT_SFNT_INTERFACE_GET sfnt_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +/* some include files required for members of sfntModulePIC */ +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TT_CMAP_H +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#include FT_SERVICE_BDF_H +#endif +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include "ttcmap.h" + +typedef struct sfntModulePIC_ + { + FT_ServiceDescRec* sfnt_services; + FT_Service_GlyphDictRec sfnt_service_glyph_dict; + FT_Service_PsFontNameRec sfnt_service_ps_name; + FT_Service_TTCMapsRec tt_service_get_cmap_info; + TT_CMap_Class* tt_cmap_classes; + FT_Service_SFNT_TableRec sfnt_service_sfnt_table; +#ifdef TT_CONFIG_OPTION_BDF + FT_Service_BDFRec sfnt_service_bdf; +#endif + SFNT_Interface sfnt_interface; + } sfntModulePIC; + +#define GET_PIC(lib) ((sfntModulePIC*)((lib)->pic_container.sfnt)) +#define FT_SFNT_SERVICES_GET (GET_PIC(library)->sfnt_services) +#define FT_SFNT_SERVICE_GLYPH_DICT_GET (GET_PIC(library)->sfnt_service_glyph_dict) +#define FT_SFNT_SERVICE_PS_NAME_GET (GET_PIC(library)->sfnt_service_ps_name) +#define FT_TT_SERVICE_GET_CMAP_INFO_GET (GET_PIC(library)->tt_service_get_cmap_info) +#define FT_SFNT_SERVICES_GET (GET_PIC(library)->sfnt_services) +#define FT_TT_CMAP_CLASSES_GET (GET_PIC(library)->tt_cmap_classes) +#define FT_SFNT_SERVICE_SFNT_TABLE_GET (GET_PIC(library)->sfnt_service_sfnt_table) +#define FT_SFNT_SERVICE_BDF_GET (GET_PIC(library)->sfnt_service_bdf) +#define FT_SFNT_INTERFACE_GET (GET_PIC(library)->sfnt_interface) + +#endif /* FT_CONFIG_OPTION_PIC */ + +/* */ + +FT_END_HEADER + +#endif /* __SFNTPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.c b/uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.c new file mode 100644 index 000000000..2974d4db4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.c @@ -0,0 +1,1155 @@ +/***************************************************************************/ +/* */ +/* sfobjs.c */ +/* */ +/* SFNT object management (base). */ +/* */ +/* Copyright 1996-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "sfobjs.h" +#include "ttload.h" +#include "ttcmap.h" +#include "ttkern.h" +#include FT_INTERNAL_SFNT_H +#include FT_INTERNAL_DEBUG_H +#include FT_TRUETYPE_IDS_H +#include FT_TRUETYPE_TAGS_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_SFNT_NAMES_H +#include "sferrors.h" + +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_sfobjs + + + + /* convert a UTF-16 name entry to ASCII */ + static FT_String* + tt_name_entry_ascii_from_utf16( TT_NameEntry entry, + FT_Memory memory ) + { + FT_String* string = NULL; + FT_UInt len, code, n; + FT_Byte* read = (FT_Byte*)entry->string; + FT_Error error; + + + len = (FT_UInt)entry->stringLength / 2; + + if ( FT_NEW_ARRAY( string, len + 1 ) ) + return NULL; + + for ( n = 0; n < len; n++ ) + { + code = FT_NEXT_USHORT( read ); + if ( code < 32 || code > 127 ) + code = '?'; + + string[n] = (char)code; + } + + string[len] = 0; + + return string; + } + + + /* convert an Apple Roman or symbol name entry to ASCII */ + static FT_String* + tt_name_entry_ascii_from_other( TT_NameEntry entry, + FT_Memory memory ) + { + FT_String* string = NULL; + FT_UInt len, code, n; + FT_Byte* read = (FT_Byte*)entry->string; + FT_Error error; + + + len = (FT_UInt)entry->stringLength; + + if ( FT_NEW_ARRAY( string, len + 1 ) ) + return NULL; + + for ( n = 0; n < len; n++ ) + { + code = *read++; + if ( code < 32 || code > 127 ) + code = '?'; + + string[n] = (char)code; + } + + string[len] = 0; + + return string; + } + + + typedef FT_String* (*TT_NameEntry_ConvertFunc)( TT_NameEntry entry, + FT_Memory memory ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_get_name */ + /* */ + /* <Description> */ + /* Returns a given ENGLISH name record in ASCII. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* nameid :: The name id of the name record to return. */ + /* */ + /* <InOut> */ + /* name :: The address of a string pointer. NULL if no name is */ + /* present. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + tt_face_get_name( TT_Face face, + FT_UShort nameid, + FT_String** name ) + { + FT_Memory memory = face->root.memory; + FT_Error error = SFNT_Err_Ok; + FT_String* result = NULL; + FT_UShort n; + TT_NameEntryRec* rec; + FT_Int found_apple = -1; + FT_Int found_apple_roman = -1; + FT_Int found_apple_english = -1; + FT_Int found_win = -1; + FT_Int found_unicode = -1; + + FT_Bool is_english = 0; + + TT_NameEntry_ConvertFunc convert; + + + FT_ASSERT( name ); + + rec = face->name_table.names; + for ( n = 0; n < face->num_names; n++, rec++ ) + { + /* According to the OpenType 1.3 specification, only Microsoft or */ + /* Apple platform IDs might be used in the `name' table. The */ + /* `Unicode' platform is reserved for the `cmap' table, and the */ + /* `ISO' one is deprecated. */ + /* */ + /* However, the Apple TrueType specification doesn't say the same */ + /* thing and goes to suggest that all Unicode `name' table entries */ + /* should be coded in UTF-16 (in big-endian format I suppose). */ + /* */ + if ( rec->nameID == nameid && rec->stringLength > 0 ) + { + switch ( rec->platformID ) + { + case TT_PLATFORM_APPLE_UNICODE: + case TT_PLATFORM_ISO: + /* there is `languageID' to check there. We should use this */ + /* field only as a last solution when nothing else is */ + /* available. */ + /* */ + found_unicode = n; + break; + + case TT_PLATFORM_MACINTOSH: + /* This is a bit special because some fonts will use either */ + /* an English language id, or a Roman encoding id, to indicate */ + /* the English version of its font name. */ + /* */ + if ( rec->languageID == TT_MAC_LANGID_ENGLISH ) + found_apple_english = n; + else if ( rec->encodingID == TT_MAC_ID_ROMAN ) + found_apple_roman = n; + break; + + case TT_PLATFORM_MICROSOFT: + /* we only take a non-English name when there is nothing */ + /* else available in the font */ + /* */ + if ( found_win == -1 || ( rec->languageID & 0x3FF ) == 0x009 ) + { + switch ( rec->encodingID ) + { + case TT_MS_ID_SYMBOL_CS: + case TT_MS_ID_UNICODE_CS: + case TT_MS_ID_UCS_4: + is_english = FT_BOOL( ( rec->languageID & 0x3FF ) == 0x009 ); + found_win = n; + break; + + default: + ; + } + } + break; + + default: + ; + } + } + } + + found_apple = found_apple_roman; + if ( found_apple_english >= 0 ) + found_apple = found_apple_english; + + /* some fonts contain invalid Unicode or Macintosh formatted entries; */ + /* we will thus favor names encoded in Windows formats if available */ + /* (provided it is an English name) */ + /* */ + convert = NULL; + if ( found_win >= 0 && !( found_apple >= 0 && !is_english ) ) + { + rec = face->name_table.names + found_win; + switch ( rec->encodingID ) + { + /* all Unicode strings are encoded using UTF-16BE */ + case TT_MS_ID_UNICODE_CS: + case TT_MS_ID_SYMBOL_CS: + convert = tt_name_entry_ascii_from_utf16; + break; + + case TT_MS_ID_UCS_4: + /* Apparently, if this value is found in a name table entry, it is */ + /* documented as `full Unicode repertoire'. Experience with the */ + /* MsGothic font shipped with Windows Vista shows that this really */ + /* means UTF-16 encoded names (UCS-4 values are only used within */ + /* charmaps). */ + convert = tt_name_entry_ascii_from_utf16; + break; + + default: + ; + } + } + else if ( found_apple >= 0 ) + { + rec = face->name_table.names + found_apple; + convert = tt_name_entry_ascii_from_other; + } + else if ( found_unicode >= 0 ) + { + rec = face->name_table.names + found_unicode; + convert = tt_name_entry_ascii_from_utf16; + } + + if ( rec && convert ) + { + if ( rec->string == NULL ) + { + FT_Stream stream = face->name_table.stream; + + + if ( FT_QNEW_ARRAY ( rec->string, rec->stringLength ) || + FT_STREAM_SEEK( rec->stringOffset ) || + FT_STREAM_READ( rec->string, rec->stringLength ) ) + { + FT_FREE( rec->string ); + rec->stringLength = 0; + result = NULL; + goto Exit; + } + } + + result = convert( rec, memory ); + } + + Exit: + *name = result; + return error; + } + + + static FT_Encoding + sfnt_find_encoding( int platform_id, + int encoding_id ) + { + typedef struct TEncoding_ + { + int platform_id; + int encoding_id; + FT_Encoding encoding; + + } TEncoding; + + static + const TEncoding tt_encodings[] = + { + { TT_PLATFORM_ISO, -1, FT_ENCODING_UNICODE }, + + { TT_PLATFORM_APPLE_UNICODE, -1, FT_ENCODING_UNICODE }, + + { TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, FT_ENCODING_APPLE_ROMAN }, + + { TT_PLATFORM_MICROSOFT, TT_MS_ID_SYMBOL_CS, FT_ENCODING_MS_SYMBOL }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_UCS_4, FT_ENCODING_UNICODE }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS, FT_ENCODING_UNICODE }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_SJIS, FT_ENCODING_SJIS }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_GB2312, FT_ENCODING_GB2312 }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, FT_ENCODING_BIG5 }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, FT_ENCODING_WANSUNG }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, FT_ENCODING_JOHAB } + }; + + const TEncoding *cur, *limit; + + + cur = tt_encodings; + limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] ); + + for ( ; cur < limit; cur++ ) + { + if ( cur->platform_id == platform_id ) + { + if ( cur->encoding_id == encoding_id || + cur->encoding_id == -1 ) + return cur->encoding; + } + } + + return FT_ENCODING_NONE; + } + + + /* Fill in face->ttc_header. If the font is not a TTC, it is */ + /* synthesized into a TTC with one offset table. */ + static FT_Error + sfnt_open_font( FT_Stream stream, + TT_Face face ) + { + FT_Memory memory = stream->memory; + FT_Error error; + FT_ULong tag, offset; + + static const FT_Frame_Field ttc_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TTC_HeaderRec + + FT_FRAME_START( 8 ), + FT_FRAME_LONG( version ), + FT_FRAME_LONG( count ), /* this is ULong in the specs */ + FT_FRAME_END + }; + + + face->ttc_header.tag = 0; + face->ttc_header.version = 0; + face->ttc_header.count = 0; + + offset = FT_STREAM_POS(); + + if ( FT_READ_ULONG( tag ) ) + return error; + + if ( tag != 0x00010000UL && + tag != TTAG_ttcf && + tag != TTAG_OTTO && + tag != TTAG_true && + tag != TTAG_typ1 && + tag != 0x00020000UL ) + return SFNT_Err_Unknown_File_Format; + + face->ttc_header.tag = TTAG_ttcf; + + if ( tag == TTAG_ttcf ) + { + FT_Int n; + + + FT_TRACE3(( "sfnt_open_font: file is a collection\n" )); + + if ( FT_STREAM_READ_FIELDS( ttc_header_fields, &face->ttc_header ) ) + return error; + + if ( face->ttc_header.count == 0 ) + return SFNT_Err_Invalid_Table; + + /* a rough size estimate: let's conservatively assume that there */ + /* is just a single table info in each subfont header (12 + 16*1 = */ + /* 28 bytes), thus we have (at least) `12 + 4*count' bytes for the */ + /* size of the TTC header plus `28*count' bytes for all subfont */ + /* headers */ + if ( (FT_ULong)face->ttc_header.count > stream->size / ( 28 + 4 ) ) + return SFNT_Err_Array_Too_Large; + + /* now read the offsets of each font in the file */ + if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) ) + return error; + + if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) ) + return error; + + for ( n = 0; n < face->ttc_header.count; n++ ) + face->ttc_header.offsets[n] = FT_GET_ULONG(); + + FT_FRAME_EXIT(); + } + else + { + FT_TRACE3(( "sfnt_open_font: synthesize TTC\n" )); + + face->ttc_header.version = 1 << 16; + face->ttc_header.count = 1; + + if ( FT_NEW( face->ttc_header.offsets ) ) + return error; + + face->ttc_header.offsets[0] = offset; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + sfnt_init_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Library library = face->root.driver->root.library; + SFNT_Service sfnt; + + + /* for now, parameters are unused */ + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + sfnt = (SFNT_Service)face->sfnt; + if ( !sfnt ) + { + sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" ); + if ( !sfnt ) + return SFNT_Err_Invalid_File_Format; + + face->sfnt = sfnt; + face->goto_table = sfnt->goto_table; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, face->psnames, POSTSCRIPT_CMAPS ); + + error = sfnt_open_font( stream, face ); + if ( error ) + return error; + + FT_TRACE2(( "sfnt_init_face: %08p, %ld\n", face, face_index )); + + if ( face_index < 0 ) + face_index = 0; + + if ( face_index >= face->ttc_header.count ) + return SFNT_Err_Invalid_Argument; + + if ( FT_STREAM_SEEK( face->ttc_header.offsets[face_index] ) ) + return error; + + /* check that we have a valid TrueType file */ + error = sfnt->load_font_dir( face, stream ); + if ( error ) + return error; + + face->root.num_faces = face->ttc_header.count; + face->root.face_index = face_index; + + return error; + } + + +#define LOAD_( x ) \ + do { \ + FT_TRACE2(( "`" #x "' " )); \ + FT_TRACE3(( "-->\n" )); \ + \ + error = sfnt->load_##x( face, stream ); \ + \ + FT_TRACE2(( "%s\n", ( !error ) \ + ? "loaded" \ + : ( error == SFNT_Err_Table_Missing ) \ + ? "missing" \ + : "failed to load" )); \ + FT_TRACE3(( "\n" )); \ + } while ( 0 ) + +#define LOADM_( x, vertical ) \ + do { \ + FT_TRACE2(( "`%s" #x "' ", \ + vertical ? "vertical " : "" )); \ + FT_TRACE3(( "-->\n" )); \ + \ + error = sfnt->load_##x( face, stream, vertical ); \ + \ + FT_TRACE2(( "%s\n", ( !error ) \ + ? "loaded" \ + : ( error == SFNT_Err_Table_Missing ) \ + ? "missing" \ + : "failed to load" )); \ + FT_TRACE3(( "\n" )); \ + } while ( 0 ) + +#define GET_NAME( id, field ) \ + do { \ + error = tt_face_get_name( face, TT_NAME_ID_##id, field ); \ + if ( error ) \ + goto Exit; \ + } while ( 0 ) + + + FT_LOCAL_DEF( FT_Error ) + sfnt_load_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_Error psnames_error; +#endif + FT_Bool has_outline; + FT_Bool is_apple_sbit; + FT_Bool ignore_preferred_family = FALSE; + FT_Bool ignore_preferred_subfamily = FALSE; + + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + FT_UNUSED( face_index ); + + /* Check parameters */ + + { + FT_Int i; + + + for ( i = 0; i < num_params; i++ ) + { + if ( params[i].tag == FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY ) + ignore_preferred_family = TRUE; + else if ( params[i].tag == FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY ) + ignore_preferred_subfamily = TRUE; + } + } + + /* Load tables */ + + /* We now support two SFNT-based bitmapped font formats. They */ + /* are recognized easily as they do not include a `glyf' */ + /* table. */ + /* */ + /* The first format comes from Apple, and uses a table named */ + /* `bhed' instead of `head' to store the font header (using */ + /* the same format). It also doesn't include horizontal and */ + /* vertical metrics tables (i.e. `hhea' and `vhea' tables are */ + /* missing). */ + /* */ + /* The other format comes from Microsoft, and is used with */ + /* WinCE/PocketPC. It looks like a standard TTF, except that */ + /* it doesn't contain outlines. */ + /* */ + + FT_TRACE2(( "sfnt_load_face: %08p\n\n", face )); + + /* do we have outlines in there? */ +#ifdef FT_CONFIG_OPTION_INCREMENTAL + has_outline = FT_BOOL( face->root.internal->incremental_interface != 0 || + tt_face_lookup_table( face, TTAG_glyf ) != 0 || + tt_face_lookup_table( face, TTAG_CFF ) != 0 ); +#else + has_outline = FT_BOOL( tt_face_lookup_table( face, TTAG_glyf ) != 0 || + tt_face_lookup_table( face, TTAG_CFF ) != 0 ); +#endif + + is_apple_sbit = 0; + + /* if this font doesn't contain outlines, we try to load */ + /* a `bhed' table */ + if ( !has_outline && sfnt->load_bhed ) + { + LOAD_( bhed ); + is_apple_sbit = FT_BOOL( !error ); + } + + /* load the font header (`head' table) if this isn't an Apple */ + /* sbit font file */ + if ( !is_apple_sbit ) + { + LOAD_( head ); + if ( error ) + goto Exit; + } + + if ( face->header.Units_Per_EM == 0 ) + { + error = SFNT_Err_Invalid_Table; + + goto Exit; + } + + /* the following tables are often not present in embedded TrueType */ + /* fonts within PDF documents, so don't check for them. */ + LOAD_( maxp ); + LOAD_( cmap ); + + /* the following tables are optional in PCL fonts -- */ + /* don't check for errors */ + LOAD_( name ); + LOAD_( post ); + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + psnames_error = error; +#endif + + /* do not load the metrics headers and tables if this is an Apple */ + /* sbit font file */ + if ( !is_apple_sbit ) + { + /* load the `hhea' and `hmtx' tables */ + LOADM_( hhea, 0 ); + if ( !error ) + { + LOADM_( hmtx, 0 ); + if ( error == SFNT_Err_Table_Missing ) + { + error = SFNT_Err_Hmtx_Table_Missing; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* If this is an incrementally loaded font and there are */ + /* overriding metrics, tolerate a missing `hmtx' table. */ + if ( face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs-> + get_glyph_metrics ) + { + face->horizontal.number_Of_HMetrics = 0; + error = SFNT_Err_Ok; + } +#endif + } + } + else if ( error == SFNT_Err_Table_Missing ) + { + /* No `hhea' table necessary for SFNT Mac fonts. */ + if ( face->format_tag == TTAG_true ) + { + FT_TRACE2(( "This is an SFNT Mac font.\n" )); + + has_outline = 0; + error = SFNT_Err_Ok; + } + else + { + error = SFNT_Err_Horiz_Header_Missing; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* If this is an incrementally loaded font and there are */ + /* overriding metrics, tolerate a missing `hhea' table. */ + if ( face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs-> + get_glyph_metrics ) + { + face->horizontal.number_Of_HMetrics = 0; + error = SFNT_Err_Ok; + } +#endif + + } + } + + if ( error ) + goto Exit; + + /* try to load the `vhea' and `vmtx' tables */ + LOADM_( hhea, 1 ); + if ( !error ) + { + LOADM_( hmtx, 1 ); + if ( !error ) + face->vertical_info = 1; + } + + if ( error && error != SFNT_Err_Table_Missing ) + goto Exit; + + LOAD_( os2 ); + if ( error ) + { + /* we treat the table as missing if there are any errors */ + face->os2.version = 0xFFFFU; + } + } + + /* the optional tables */ + + /* embedded bitmap support */ + if ( sfnt->load_eblc ) + { + LOAD_( eblc ); + if ( error ) + { + /* a font which contains neither bitmaps nor outlines is */ + /* still valid (although rather useless in most cases); */ + /* however, you can find such stripped fonts in PDFs */ + if ( error == SFNT_Err_Table_Missing ) + error = SFNT_Err_Ok; + else + goto Exit; + } + } + + LOAD_( pclt ); + if ( error ) + { + if ( error != SFNT_Err_Table_Missing ) + goto Exit; + + face->pclt.Version = 0; + } + + /* consider the kerning and gasp tables as optional */ + LOAD_( gasp ); + LOAD_( kern ); + + face->root.num_glyphs = face->max_profile.numGlyphs; + + /* Bit 8 of the `fsSelection' field in the `OS/2' table denotes */ + /* a WWS-only font face. `WWS' stands for `weight', width', and */ + /* `slope', a term used by Microsoft's Windows Presentation */ + /* Foundation (WPF). This flag has been introduced in version */ + /* 1.5 of the OpenType specification (May 2008). */ + + face->root.family_name = NULL; + face->root.style_name = NULL; + if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 256 ) + { + if ( !ignore_preferred_family ) + GET_NAME( PREFERRED_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( FONT_FAMILY, &face->root.family_name ); + + if ( !ignore_preferred_subfamily ) + GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( FONT_SUBFAMILY, &face->root.style_name ); + } + else + { + GET_NAME( WWS_FAMILY, &face->root.family_name ); + if ( !face->root.family_name && !ignore_preferred_family ) + GET_NAME( PREFERRED_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( FONT_FAMILY, &face->root.family_name ); + + GET_NAME( WWS_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name && !ignore_preferred_subfamily ) + GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( FONT_SUBFAMILY, &face->root.style_name ); + } + + /* now set up root fields */ + { + FT_Face root = &face->root; + FT_Long flags = root->face_flags; + + + /*********************************************************************/ + /* */ + /* Compute face flags. */ + /* */ + if ( has_outline == TRUE ) + flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */ + + /* The sfnt driver only supports bitmap fonts natively, thus we */ + /* don't set FT_FACE_FLAG_HINTER. */ + flags |= FT_FACE_FLAG_SFNT | /* SFNT file format */ + FT_FACE_FLAG_HORIZONTAL; /* horizontal data */ + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + if ( psnames_error == SFNT_Err_Ok && + face->postscript.FormatType != 0x00030000L ) + flags |= FT_FACE_FLAG_GLYPH_NAMES; +#endif + + /* fixed width font? */ + if ( face->postscript.isFixedPitch ) + flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* vertical information? */ + if ( face->vertical_info ) + flags |= FT_FACE_FLAG_VERTICAL; + + /* kerning available ? */ + if ( TT_FACE_HAS_KERNING( face ) ) + flags |= FT_FACE_FLAG_KERNING; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* Don't bother to load the tables unless somebody asks for them. */ + /* No need to do work which will (probably) not be used. */ + if ( tt_face_lookup_table( face, TTAG_glyf ) != 0 && + tt_face_lookup_table( face, TTAG_fvar ) != 0 && + tt_face_lookup_table( face, TTAG_gvar ) != 0 ) + flags |= FT_FACE_FLAG_MULTIPLE_MASTERS; +#endif + + root->face_flags = flags; + + /*********************************************************************/ + /* */ + /* Compute style flags. */ + /* */ + + flags = 0; + if ( has_outline == TRUE && face->os2.version != 0xFFFFU ) + { + /* We have an OS/2 table; use the `fsSelection' field. Bit 9 */ + /* indicates an oblique font face. This flag has been */ + /* introduced in version 1.5 of the OpenType specification. */ + + if ( face->os2.fsSelection & 512 ) /* bit 9 */ + flags |= FT_STYLE_FLAG_ITALIC; + else if ( face->os2.fsSelection & 1 ) /* bit 0 */ + flags |= FT_STYLE_FLAG_ITALIC; + + if ( face->os2.fsSelection & 32 ) /* bit 5 */ + flags |= FT_STYLE_FLAG_BOLD; + } + else + { + /* this is an old Mac font, use the header field */ + + if ( face->header.Mac_Style & 1 ) + flags |= FT_STYLE_FLAG_BOLD; + + if ( face->header.Mac_Style & 2 ) + flags |= FT_STYLE_FLAG_ITALIC; + } + + root->style_flags = flags; + + /*********************************************************************/ + /* */ + /* Polish the charmaps. */ + /* */ + /* Try to set the charmap encoding according to the platform & */ + /* encoding ID of each charmap. */ + /* */ + + tt_face_build_cmaps( face ); /* ignore errors */ + + + /* set the encoding fields */ + { + FT_Int m; + + + for ( m = 0; m < root->num_charmaps; m++ ) + { + FT_CharMap charmap = root->charmaps[m]; + + + charmap->encoding = sfnt_find_encoding( charmap->platform_id, + charmap->encoding_id ); + +#if 0 + if ( root->charmap == NULL && + charmap->encoding == FT_ENCODING_UNICODE ) + { + /* set 'root->charmap' to the first Unicode encoding we find */ + root->charmap = charmap; + } +#endif + } + } + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* + * Now allocate the root array of FT_Bitmap_Size records and + * populate them. Unfortunately, it isn't possible to indicate bit + * depths in the FT_Bitmap_Size record. This is a design error. + */ + { + FT_UInt i, count; + + +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + count = face->sbit_num_strikes; +#else + count = (FT_UInt)face->num_sbit_strikes; +#endif + + if ( count > 0 ) + { + FT_Memory memory = face->root.stream->memory; + FT_UShort em_size = face->header.Units_Per_EM; + FT_Short avgwidth = face->os2.xAvgCharWidth; + FT_Size_Metrics metrics; + + + if ( em_size == 0 || face->os2.version == 0xFFFFU ) + { + avgwidth = 0; + em_size = 1; + } + + if ( FT_NEW_ARRAY( root->available_sizes, count ) ) + goto Exit; + + for ( i = 0; i < count; i++ ) + { + FT_Bitmap_Size* bsize = root->available_sizes + i; + + + error = sfnt->load_strike_metrics( face, i, &metrics ); + if ( error ) + goto Exit; + + bsize->height = (FT_Short)( metrics.height >> 6 ); + bsize->width = (FT_Short)( + ( avgwidth * metrics.x_ppem + em_size / 2 ) / em_size ); + + bsize->x_ppem = metrics.x_ppem << 6; + bsize->y_ppem = metrics.y_ppem << 6; + + /* assume 72dpi */ + bsize->size = metrics.y_ppem << 6; + } + + root->face_flags |= FT_FACE_FLAG_FIXED_SIZES; + root->num_fixed_sizes = (FT_Int)count; + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* a font with no bitmaps and no outlines is scalable; */ + /* it has only empty glyphs then */ + if ( !FT_HAS_FIXED_SIZES( root ) && !FT_IS_SCALABLE( root ) ) + root->face_flags |= FT_FACE_FLAG_SCALABLE; + + + /*********************************************************************/ + /* */ + /* Set up metrics. */ + /* */ + if ( FT_IS_SCALABLE( root ) ) + { + /* XXX What about if outline header is missing */ + /* (e.g. sfnt wrapped bitmap)? */ + root->bbox.xMin = face->header.xMin; + root->bbox.yMin = face->header.yMin; + root->bbox.xMax = face->header.xMax; + root->bbox.yMax = face->header.yMax; + root->units_per_EM = face->header.Units_Per_EM; + + + /* XXX: Computing the ascender/descender/height is very different */ + /* from what the specification tells you. Apparently, we */ + /* must be careful because */ + /* */ + /* - not all fonts have an OS/2 table; in this case, we take */ + /* the values in the horizontal header. However, these */ + /* values very often are not reliable. */ + /* */ + /* - otherwise, the correct typographic values are in the */ + /* sTypoAscender, sTypoDescender & sTypoLineGap fields. */ + /* */ + /* However, certain fonts have these fields set to 0. */ + /* Rather, they have usWinAscent & usWinDescent correctly */ + /* set (but with different values). */ + /* */ + /* As an example, Arial Narrow is implemented through four */ + /* files ARIALN.TTF, ARIALNI.TTF, ARIALNB.TTF & ARIALNBI.TTF */ + /* */ + /* Strangely, all fonts have the same values in their */ + /* sTypoXXX fields, except ARIALNB which sets them to 0. */ + /* */ + /* On the other hand, they all have different */ + /* usWinAscent/Descent values -- as a conclusion, the OS/2 */ + /* table cannot be used to compute the text height reliably! */ + /* */ + + /* The ascender and descender are taken from the `hhea' table. */ + /* If zero, they are taken from the `OS/2' table. */ + + root->ascender = face->horizontal.Ascender; + root->descender = face->horizontal.Descender; + + root->height = (FT_Short)( root->ascender - root->descender + + face->horizontal.Line_Gap ); + + if ( !( root->ascender || root->descender ) ) + { + if ( face->os2.version != 0xFFFFU ) + { + if ( face->os2.sTypoAscender || face->os2.sTypoDescender ) + { + root->ascender = face->os2.sTypoAscender; + root->descender = face->os2.sTypoDescender; + + root->height = (FT_Short)( root->ascender - root->descender + + face->os2.sTypoLineGap ); + } + else + { + root->ascender = (FT_Short)face->os2.usWinAscent; + root->descender = -(FT_Short)face->os2.usWinDescent; + + root->height = (FT_UShort)( root->ascender - root->descender ); + } + } + } + + root->max_advance_width = face->horizontal.advance_Width_Max; + root->max_advance_height = (FT_Short)( face->vertical_info + ? face->vertical.advance_Height_Max + : root->height ); + + /* See http://www.microsoft.com/OpenType/OTSpec/post.htm -- */ + /* Adjust underline position from top edge to centre of */ + /* stroke to convert TrueType meaning to FreeType meaning. */ + root->underline_position = face->postscript.underlinePosition - + face->postscript.underlineThickness / 2; + root->underline_thickness = face->postscript.underlineThickness; + } + + } + + Exit: + FT_TRACE2(( "sfnt_load_face: done\n" )); + + return error; + } + + +#undef LOAD_ +#undef LOADM_ +#undef GET_NAME + + + FT_LOCAL_DEF( void ) + sfnt_done_face( TT_Face face ) + { + FT_Memory memory; + SFNT_Service sfnt; + + + if ( !face ) + return; + + memory = face->root.memory; + sfnt = (SFNT_Service)face->sfnt; + + if ( sfnt ) + { + /* destroy the postscript names table if it is loaded */ + if ( sfnt->free_psnames ) + sfnt->free_psnames( face ); + + /* destroy the embedded bitmaps table if it is loaded */ + if ( sfnt->free_eblc ) + sfnt->free_eblc( face ); + } + +#ifdef TT_CONFIG_OPTION_BDF + /* freeing the embedded BDF properties */ + tt_face_free_bdf_props( face ); +#endif + + /* freeing the kerning table */ + tt_face_done_kern( face ); + + /* freeing the collection table */ + FT_FREE( face->ttc_header.offsets ); + face->ttc_header.count = 0; + + /* freeing table directory */ + FT_FREE( face->dir_tables ); + face->num_tables = 0; + + { + FT_Stream stream = FT_FACE_STREAM( face ); + + + /* simply release the 'cmap' table frame */ + FT_FRAME_RELEASE( face->cmap_table ); + face->cmap_size = 0; + } + + /* freeing the horizontal metrics */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + { + FT_Stream stream = FT_FACE_STREAM( face ); + + + FT_FRAME_RELEASE( face->horz_metrics ); + FT_FRAME_RELEASE( face->vert_metrics ); + face->horz_metrics_size = 0; + face->vert_metrics_size = 0; + } +#else + FT_FREE( face->horizontal.long_metrics ); + FT_FREE( face->horizontal.short_metrics ); +#endif + + /* freeing the vertical ones, if any */ + if ( face->vertical_info ) + { + FT_FREE( face->vertical.long_metrics ); + FT_FREE( face->vertical.short_metrics ); + face->vertical_info = 0; + } + + /* freeing the gasp table */ + FT_FREE( face->gasp.gaspRanges ); + face->gasp.numRanges = 0; + + /* freeing the name table */ + if ( sfnt ) + sfnt->free_name( face ); + + /* freeing family and style name */ + FT_FREE( face->root.family_name ); + FT_FREE( face->root.style_name ); + + /* freeing sbit size table */ + FT_FREE( face->root.available_sizes ); + face->root.num_fixed_sizes = 0; + + FT_FREE( face->postscript_name ); + + face->sfnt = 0; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.h b/uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.h new file mode 100644 index 000000000..e83ff7b84 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/sfobjs.h @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* sfobjs.h */ +/* */ +/* SFNT object management (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFOBJS_H__ +#define __SFOBJS_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_SFNT_H +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + sfnt_init_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( FT_Error ) + sfnt_load_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + sfnt_done_face( TT_Face face ); + + +FT_END_HEADER + +#endif /* __SFDRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.c new file mode 100644 index 000000000..a0db887df --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.c @@ -0,0 +1,250 @@ +/***************************************************************************/ +/* */ +/* ttbdf.c */ +/* */ +/* TrueType and OpenType embedded BDF properties (body). */ +/* */ +/* Copyright 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttbdf.h" + +#include "sferrors.h" + + +#ifdef TT_CONFIG_OPTION_BDF + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttbdf + + + FT_LOCAL_DEF( void ) + tt_face_free_bdf_props( TT_Face face ) + { + TT_BDF bdf = &face->bdf; + + + if ( bdf->loaded ) + { + FT_Stream stream = FT_FACE(face)->stream; + + + if ( bdf->table != NULL ) + FT_FRAME_RELEASE( bdf->table ); + + bdf->table_end = NULL; + bdf->strings = NULL; + bdf->strings_size = 0; + } + } + + + static FT_Error + tt_face_load_bdf_props( TT_Face face, + FT_Stream stream ) + { + TT_BDF bdf = &face->bdf; + FT_ULong length; + FT_Error error; + + + FT_ZERO( bdf ); + + error = tt_face_goto_table( face, TTAG_BDF, stream, &length ); + if ( error || + length < 8 || + FT_FRAME_EXTRACT( length, bdf->table ) ) + { + error = SFNT_Err_Invalid_Table; + goto Exit; + } + + bdf->table_end = bdf->table + length; + + { + FT_Byte* p = bdf->table; + FT_UInt version = FT_NEXT_USHORT( p ); + FT_UInt num_strikes = FT_NEXT_USHORT( p ); + FT_ULong strings = FT_NEXT_ULONG ( p ); + FT_UInt count; + FT_Byte* strike; + + + if ( version != 0x0001 || + strings < 8 || + ( strings - 8 ) / 4 < num_strikes || + strings + 1 > length ) + { + goto BadTable; + } + + bdf->num_strikes = num_strikes; + bdf->strings = bdf->table + strings; + bdf->strings_size = length - strings; + + count = bdf->num_strikes; + p = bdf->table + 8; + strike = p + count * 4; + + + for ( ; count > 0; count-- ) + { + FT_UInt num_items = FT_PEEK_USHORT( p + 2 ); + + /* + * We don't need to check the value sets themselves, since this + * is done later. + */ + strike += 10 * num_items; + + p += 4; + } + + if ( strike > bdf->strings ) + goto BadTable; + } + + bdf->loaded = 1; + + Exit: + return error; + + BadTable: + FT_FRAME_RELEASE( bdf->table ); + FT_ZERO( bdf ); + error = SFNT_Err_Invalid_Table; + goto Exit; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_find_bdf_prop( TT_Face face, + const char* property_name, + BDF_PropertyRec *aprop ) + { + TT_BDF bdf = &face->bdf; + FT_Size size = FT_FACE(face)->size; + FT_Error error = SFNT_Err_Ok; + FT_Byte* p; + FT_UInt count; + FT_Byte* strike; + FT_Offset property_len; + + + aprop->type = BDF_PROPERTY_TYPE_NONE; + + if ( bdf->loaded == 0 ) + { + error = tt_face_load_bdf_props( face, FT_FACE( face )->stream ); + if ( error ) + goto Exit; + } + + count = bdf->num_strikes; + p = bdf->table + 8; + strike = p + 4 * count; + + error = SFNT_Err_Invalid_Argument; + + if ( size == NULL || property_name == NULL ) + goto Exit; + + property_len = ft_strlen( property_name ); + if ( property_len == 0 ) + goto Exit; + + for ( ; count > 0; count-- ) + { + FT_UInt _ppem = FT_NEXT_USHORT( p ); + FT_UInt _count = FT_NEXT_USHORT( p ); + + if ( _ppem == size->metrics.y_ppem ) + { + count = _count; + goto FoundStrike; + } + + strike += 10 * _count; + } + goto Exit; + + FoundStrike: + p = strike; + for ( ; count > 0; count-- ) + { + FT_UInt type = FT_PEEK_USHORT( p + 4 ); + + if ( ( type & 0x10 ) != 0 ) + { + FT_UInt32 name_offset = FT_PEEK_ULONG( p ); + FT_UInt32 value = FT_PEEK_ULONG( p + 6 ); + + /* be a bit paranoid for invalid entries here */ + if ( name_offset < bdf->strings_size && + property_len < bdf->strings_size - name_offset && + ft_strncmp( property_name, + (const char*)bdf->strings + name_offset, + bdf->strings_size - name_offset ) == 0 ) + { + switch ( type & 0x0F ) + { + case 0x00: /* string */ + case 0x01: /* atoms */ + /* check that the content is really 0-terminated */ + if ( value < bdf->strings_size && + ft_memchr( bdf->strings + value, 0, bdf->strings_size ) ) + { + aprop->type = BDF_PROPERTY_TYPE_ATOM; + aprop->u.atom = (const char*)bdf->strings + value; + error = SFNT_Err_Ok; + goto Exit; + } + break; + + case 0x02: + aprop->type = BDF_PROPERTY_TYPE_INTEGER; + aprop->u.integer = (FT_Int32)value; + error = SFNT_Err_Ok; + goto Exit; + + case 0x03: + aprop->type = BDF_PROPERTY_TYPE_CARDINAL; + aprop->u.cardinal = value; + error = SFNT_Err_Ok; + goto Exit; + + default: + ; + } + } + } + p += 10; + } + + Exit: + return error; + } + +#endif /* TT_CONFIG_OPTION_BDF */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.h new file mode 100644 index 000000000..c81e2668e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttbdf.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* ttbdf.h */ +/* */ +/* TrueType and OpenType embedded BDF properties (specification). */ +/* */ +/* Copyright 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTBDF_H__ +#define __TTBDF_H__ + + +#include <freetype/ft2build.h> +#include "ttload.h" +#include FT_BDF_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + tt_face_free_bdf_props( TT_Face face ); + + + FT_LOCAL( FT_Error ) + tt_face_find_bdf_prop( TT_Face face, + const char* property_name, + BDF_PropertyRec *aprop ); + + +FT_END_HEADER + +#endif /* __TTBDF_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.c new file mode 100644 index 000000000..9bb98a968 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.c @@ -0,0 +1,3512 @@ +/***************************************************************************/ +/* */ +/* ttcmap.c */ +/* */ +/* TrueType character mapping table (cmap) support (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H + +#include "sferrors.h" /* must come before FT_INTERNAL_VALIDATE_H */ + +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_STREAM_H +#include "ttload.h" +#include "ttcmap.h" +#include "sfntpic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttcmap + + +#define TT_PEEK_SHORT FT_PEEK_SHORT +#define TT_PEEK_USHORT FT_PEEK_USHORT +#define TT_PEEK_UINT24 FT_PEEK_UOFF3 +#define TT_PEEK_LONG FT_PEEK_LONG +#define TT_PEEK_ULONG FT_PEEK_ULONG + +#define TT_NEXT_SHORT FT_NEXT_SHORT +#define TT_NEXT_USHORT FT_NEXT_USHORT +#define TT_NEXT_UINT24 FT_NEXT_UOFF3 +#define TT_NEXT_LONG FT_NEXT_LONG +#define TT_NEXT_ULONG FT_NEXT_ULONG + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap_init( TT_CMap cmap, + FT_Byte* table ) + { + cmap->data = table; + return SFNT_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 0 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 0 */ + /* length 2 USHORT table length in bytes */ + /* language 4 USHORT Mac language code */ + /* glyph_ids 6 BYTE[256] array of glyph indices */ + /* 262 */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_0 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap0_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; + FT_UInt length = TT_NEXT_USHORT( p ); + + + if ( table + length > valid->limit || length < 262 ) + FT_INVALID_TOO_SHORT; + + /* check glyph indices whenever necessary */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt n, idx; + + + p = table + 6; + for ( n = 0; n < 256; n++ ) + { + idx = *p++; + if ( idx >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap0_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + + + return char_code < 256 ? table[6 + char_code] : 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap0_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_Byte* table = cmap->data; + FT_UInt32 charcode = *pchar_code; + FT_UInt32 result = 0; + FT_UInt gindex = 0; + + + table += 6; /* go to glyph IDs */ + while ( ++charcode < 256 ) + { + gindex = table[charcode]; + if ( gindex != 0 ) + { + result = charcode; + break; + } + } + + *pchar_code = result; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap0_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 0; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap0_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap0_char_index, + (FT_CMap_CharNextFunc) tt_cmap0_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 0, + (TT_CMap_ValidateFunc) tt_cmap0_validate, + (TT_CMap_Info_GetFunc) tt_cmap0_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_0 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 2 *****/ + /***** *****/ + /***** This is used for certain CJK encodings that encode text in a *****/ + /***** mixed 8/16 bits encoding along the following lines: *****/ + /***** *****/ + /***** * Certain byte values correspond to an 8-bit character code *****/ + /***** (typically in the range 0..127 for ASCII compatibility). *****/ + /***** *****/ + /***** * Certain byte values signal the first byte of a 2-byte *****/ + /***** character code (but these values are also valid as the *****/ + /***** second byte of a 2-byte character). *****/ + /***** *****/ + /***** The following charmap lookup and iteration functions all *****/ + /***** assume that the value "charcode" correspond to following: *****/ + /***** *****/ + /***** - For one byte characters, "charcode" is simply the *****/ + /***** character code. *****/ + /***** *****/ + /***** - For two byte characters, "charcode" is the 2-byte *****/ + /***** character code in big endian format. More exactly: *****/ + /***** *****/ + /***** (charcode >> 8) is the first byte value *****/ + /***** (charcode & 0xFF) is the second byte value *****/ + /***** *****/ + /***** Note that not all values of "charcode" are valid according *****/ + /***** to these rules, and the function moderately check the *****/ + /***** arguments. *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 2 */ + /* length 2 USHORT table length in bytes */ + /* language 4 USHORT Mac language code */ + /* keys 6 USHORT[256] sub-header keys */ + /* subs 518 SUBHEAD[NSUBS] sub-headers array */ + /* glyph_ids 518+NSUB*8 USHORT[] glyph ID array */ + /* */ + /* The `keys' table is used to map charcode high-bytes to sub-headers. */ + /* The value of `NSUBS' is the number of sub-headers defined in the */ + /* table and is computed by finding the maximum of the `keys' table. */ + /* */ + /* Note that for any n, `keys[n]' is a byte offset within the `subs' */ + /* table, i.e., it is the corresponding sub-header index multiplied */ + /* by 8. */ + /* */ + /* Each sub-header has the following format: */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* first 0 USHORT first valid low-byte */ + /* count 2 USHORT number of valid low-bytes */ + /* delta 4 SHORT see below */ + /* offset 6 USHORT see below */ + /* */ + /* A sub-header defines, for each high-byte, the range of valid */ + /* low-bytes within the charmap. Note that the range defined by `first' */ + /* and `count' must be completely included in the interval [0..255] */ + /* according to the specification. */ + /* */ + /* If a character code is contained within a given sub-header, then */ + /* mapping it to a glyph index is done as follows: */ + /* */ + /* * The value of `offset' is read. This is a _byte_ distance from the */ + /* location of the `offset' field itself into a slice of the */ + /* `glyph_ids' table. Let's call it `slice' (it is a USHORT[] too). */ + /* */ + /* * The value `slice[char.lo - first]' is read. If it is 0, there is */ + /* no glyph for the charcode. Otherwise, the value of `delta' is */ + /* added to it (modulo 65536) to form a new glyph index. */ + /* */ + /* It is up to the validation routine to check that all offsets fall */ + /* within the glyph IDs table (and not within the `subs' table itself or */ + /* outside of the CMap). */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_2 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap2_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; /* skip format */ + FT_UInt length = TT_PEEK_USHORT( p ); + FT_UInt n, max_subs; + FT_Byte* keys; /* keys table */ + FT_Byte* subs; /* sub-headers */ + FT_Byte* glyph_ids; /* glyph ID array */ + + + if ( table + length > valid->limit || length < 6 + 512 ) + FT_INVALID_TOO_SHORT; + + keys = table + 6; + + /* parse keys to compute sub-headers count */ + p = keys; + max_subs = 0; + for ( n = 0; n < 256; n++ ) + { + FT_UInt idx = TT_NEXT_USHORT( p ); + + + /* value must be multiple of 8 */ + if ( valid->level >= FT_VALIDATE_PARANOID && ( idx & 7 ) != 0 ) + FT_INVALID_DATA; + + idx >>= 3; + + if ( idx > max_subs ) + max_subs = idx; + } + + FT_ASSERT( p == table + 518 ); + + subs = p; + glyph_ids = subs + (max_subs + 1) * 8; + if ( glyph_ids > valid->limit ) + FT_INVALID_TOO_SHORT; + + /* parse sub-headers */ + for ( n = 0; n <= max_subs; n++ ) + { + FT_UInt first_code, code_count, offset; + FT_Int delta; + FT_Byte* ids; + + + first_code = TT_NEXT_USHORT( p ); + code_count = TT_NEXT_USHORT( p ); + delta = TT_NEXT_SHORT( p ); + offset = TT_NEXT_USHORT( p ); + + /* many Dynalab fonts have empty sub-headers */ + if ( code_count == 0 ) + continue; + + /* check range within 0..255 */ + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + if ( first_code >= 256 || first_code + code_count > 256 ) + FT_INVALID_DATA; + } + + /* check offset */ + if ( offset != 0 ) + { + ids = p - 2 + offset; + if ( ids < glyph_ids || ids + code_count*2 > table + length ) + FT_INVALID_OFFSET; + + /* check glyph IDs */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_Byte* limit = p + code_count * 2; + FT_UInt idx; + + + for ( ; p < limit; ) + { + idx = TT_NEXT_USHORT( p ); + if ( idx != 0 ) + { + idx = ( idx + delta ) & 0xFFFFU; + if ( idx >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + } + + return SFNT_Err_Ok; + } + + + /* return sub header corresponding to a given character code */ + /* NULL on invalid charcode */ + static FT_Byte* + tt_cmap2_get_subheader( FT_Byte* table, + FT_UInt32 char_code ) + { + FT_Byte* result = NULL; + + + if ( char_code < 0x10000UL ) + { + FT_UInt char_lo = (FT_UInt)( char_code & 0xFF ); + FT_UInt char_hi = (FT_UInt)( char_code >> 8 ); + FT_Byte* p = table + 6; /* keys table */ + FT_Byte* subs = table + 518; /* subheaders table */ + FT_Byte* sub; + + + if ( char_hi == 0 ) + { + /* an 8-bit character code -- we use subHeader 0 in this case */ + /* to test whether the character code is in the charmap */ + /* */ + sub = subs; /* jump to first sub-header */ + + /* check that the sub-header for this byte is 0, which */ + /* indicates that it is really a valid one-byte value */ + /* Otherwise, return 0 */ + /* */ + p += char_lo * 2; + if ( TT_PEEK_USHORT( p ) != 0 ) + goto Exit; + } + else + { + /* a 16-bit character code */ + + /* jump to key entry */ + p += char_hi * 2; + /* jump to sub-header */ + sub = subs + ( FT_PAD_FLOOR( TT_PEEK_USHORT( p ), 8 ) ); + + /* check that the high byte isn't a valid one-byte value */ + if ( sub == subs ) + goto Exit; + } + result = sub; + } + Exit: + return result; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap2_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* subheader; + + + subheader = tt_cmap2_get_subheader( table, char_code ); + if ( subheader ) + { + FT_Byte* p = subheader; + FT_UInt idx = (FT_UInt)(char_code & 0xFF); + FT_UInt start, count; + FT_Int delta; + FT_UInt offset; + + + start = TT_NEXT_USHORT( p ); + count = TT_NEXT_USHORT( p ); + delta = TT_NEXT_SHORT ( p ); + offset = TT_PEEK_USHORT( p ); + + idx -= start; + if ( idx < count && offset != 0 ) + { + p += offset + 2 * idx; + idx = TT_PEEK_USHORT( p ); + + if ( idx != 0 ) + result = (FT_UInt)( idx + delta ) & 0xFFFFU; + } + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap2_char_next( TT_CMap cmap, + FT_UInt32 *pcharcode ) + { + FT_Byte* table = cmap->data; + FT_UInt gindex = 0; + FT_UInt32 result = 0; + FT_UInt32 charcode = *pcharcode + 1; + FT_Byte* subheader; + + + while ( charcode < 0x10000UL ) + { + subheader = tt_cmap2_get_subheader( table, charcode ); + if ( subheader ) + { + FT_Byte* p = subheader; + FT_UInt start = TT_NEXT_USHORT( p ); + FT_UInt count = TT_NEXT_USHORT( p ); + FT_Int delta = TT_NEXT_SHORT ( p ); + FT_UInt offset = TT_PEEK_USHORT( p ); + FT_UInt char_lo = (FT_UInt)( charcode & 0xFF ); + FT_UInt pos, idx; + + + if ( offset == 0 ) + goto Next_SubHeader; + + if ( char_lo < start ) + { + char_lo = start; + pos = 0; + } + else + pos = (FT_UInt)( char_lo - start ); + + p += offset + pos * 2; + charcode = FT_PAD_FLOOR( charcode, 256 ) + char_lo; + + for ( ; pos < count; pos++, charcode++ ) + { + idx = TT_NEXT_USHORT( p ); + + if ( idx != 0 ) + { + gindex = ( idx + delta ) & 0xFFFFU; + if ( gindex != 0 ) + { + result = charcode; + goto Exit; + } + } + } + } + + /* jump to next sub-header, i.e. higher byte value */ + Next_SubHeader: + charcode = FT_PAD_FLOOR( charcode, 256 ) + 256; + } + + Exit: + *pcharcode = result; + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap2_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 2; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap2_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap2_char_index, + (FT_CMap_CharNextFunc) tt_cmap2_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 2, + (TT_CMap_ValidateFunc) tt_cmap2_validate, + (TT_CMap_Info_GetFunc) tt_cmap2_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_2 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 4 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 4 */ + /* length 2 USHORT table length */ + /* in bytes */ + /* language 4 USHORT Mac language code */ + /* */ + /* segCountX2 6 USHORT 2*NUM_SEGS */ + /* searchRange 8 USHORT 2*(1 << LOG_SEGS) */ + /* entrySelector 10 USHORT LOG_SEGS */ + /* rangeShift 12 USHORT segCountX2 - */ + /* searchRange */ + /* */ + /* endCount 14 USHORT[NUM_SEGS] end charcode for */ + /* each segment; last */ + /* is 0xFFFF */ + /* */ + /* pad 14+NUM_SEGS*2 USHORT padding */ + /* */ + /* startCount 16+NUM_SEGS*2 USHORT[NUM_SEGS] first charcode for */ + /* each segment */ + /* */ + /* idDelta 16+NUM_SEGS*4 SHORT[NUM_SEGS] delta for each */ + /* segment */ + /* idOffset 16+NUM_SEGS*6 SHORT[NUM_SEGS] range offset for */ + /* each segment; can be */ + /* zero */ + /* */ + /* glyphIds 16+NUM_SEGS*8 USHORT[] array of glyph ID */ + /* ranges */ + /* */ + /* Character codes are modelled by a series of ordered (increasing) */ + /* intervals called segments. Each segment has start and end codes, */ + /* provided by the `startCount' and `endCount' arrays. Segments must */ + /* not overlap, and the last segment should always contain the value */ + /* 0xFFFF for `endCount'. */ + /* */ + /* The fields `searchRange', `entrySelector' and `rangeShift' are better */ + /* ignored (they are traces of over-engineering in the TrueType */ + /* specification). */ + /* */ + /* Each segment also has a signed `delta', as well as an optional offset */ + /* within the `glyphIds' table. */ + /* */ + /* If a segment's idOffset is 0, the glyph index corresponding to any */ + /* charcode within the segment is obtained by adding the value of */ + /* `idDelta' directly to the charcode, modulo 65536. */ + /* */ + /* Otherwise, a glyph index is taken from the glyph IDs sub-array for */ + /* the segment, and the value of `idDelta' is added to it. */ + /* */ + /* */ + /* Finally, note that a lot of fonts contain an invalid last segment, */ + /* where `start' and `end' are correctly set to 0xFFFF but both `delta' */ + /* and `offset' are incorrect (e.g., `opens___.ttf' which comes with */ + /* OpenOffice.org). We need special code to deal with them correctly. */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_4 + + typedef struct TT_CMap4Rec_ + { + TT_CMapRec cmap; + FT_UInt32 cur_charcode; /* current charcode */ + FT_UInt cur_gindex; /* current glyph index */ + + FT_UInt num_ranges; + FT_UInt cur_range; + FT_UInt cur_start; + FT_UInt cur_end; + FT_Int cur_delta; + FT_Byte* cur_values; + + } TT_CMap4Rec, *TT_CMap4; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap4_init( TT_CMap4 cmap, + FT_Byte* table ) + { + FT_Byte* p; + + + cmap->cmap.data = table; + + p = table + 6; + cmap->num_ranges = FT_PEEK_USHORT( p ) >> 1; + cmap->cur_charcode = (FT_UInt32)0xFFFFFFFFUL; + cmap->cur_gindex = 0; + + return SFNT_Err_Ok; + } + + + static FT_Int + tt_cmap4_set_range( TT_CMap4 cmap, + FT_UInt range_index ) + { + FT_Byte* table = cmap->cmap.data; + FT_Byte* p; + FT_UInt num_ranges = cmap->num_ranges; + + + while ( range_index < num_ranges ) + { + FT_UInt offset; + + + p = table + 14 + range_index * 2; + cmap->cur_end = FT_PEEK_USHORT( p ); + + p += 2 + num_ranges * 2; + cmap->cur_start = FT_PEEK_USHORT( p ); + + p += num_ranges * 2; + cmap->cur_delta = FT_PEEK_SHORT( p ); + + p += num_ranges * 2; + offset = FT_PEEK_USHORT( p ); + + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( range_index >= num_ranges - 1 && + cmap->cur_start == 0xFFFFU && + cmap->cur_end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + cmap->cur_delta = 1; + offset = 0; + } + } + + if ( offset != 0xFFFFU ) + { + cmap->cur_values = offset ? p + offset : NULL; + cmap->cur_range = range_index; + return 0; + } + + /* we skip empty segments */ + range_index++; + } + + return -1; + } + + + /* search the index of the charcode next to cmap->cur_charcode; */ + /* caller should call tt_cmap4_set_range with proper range */ + /* before calling this function */ + /* */ + static void + tt_cmap4_next( TT_CMap4 cmap ) + { + FT_UInt charcode; + + + if ( cmap->cur_charcode >= 0xFFFFUL ) + goto Fail; + + charcode = (FT_UInt)cmap->cur_charcode + 1; + + if ( charcode < cmap->cur_start ) + charcode = cmap->cur_start; + + for ( ;; ) + { + FT_Byte* values = cmap->cur_values; + FT_UInt end = cmap->cur_end; + FT_Int delta = cmap->cur_delta; + + + if ( charcode <= end ) + { + if ( values ) + { + FT_Byte* p = values + 2 * ( charcode - cmap->cur_start ); + + + do + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + + + if ( gindex != 0 ) + { + gindex = (FT_UInt)( ( gindex + delta ) & 0xFFFFU ); + if ( gindex != 0 ) + { + cmap->cur_charcode = charcode; + cmap->cur_gindex = gindex; + return; + } + } + } while ( ++charcode <= end ); + } + else + { + do + { + FT_UInt gindex = (FT_UInt)( ( charcode + delta ) & 0xFFFFU ); + + + if ( gindex != 0 ) + { + cmap->cur_charcode = charcode; + cmap->cur_gindex = gindex; + return; + } + } while ( ++charcode <= end ); + } + } + + /* we need to find another range */ + if ( tt_cmap4_set_range( cmap, cmap->cur_range + 1 ) < 0 ) + break; + + if ( charcode < cmap->cur_start ) + charcode = cmap->cur_start; + } + + Fail: + cmap->cur_charcode = (FT_UInt32)0xFFFFFFFFUL; + cmap->cur_gindex = 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap4_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; /* skip format */ + FT_UInt length = TT_NEXT_USHORT( p ); + FT_Byte *ends, *starts, *offsets, *deltas, *glyph_ids; + FT_UInt num_segs; + FT_Error error = SFNT_Err_Ok; + + + if ( length < 16 ) + FT_INVALID_TOO_SHORT; + + /* in certain fonts, the `length' field is invalid and goes */ + /* out of bound. We try to correct this here... */ + if ( table + length > valid->limit ) + { + if ( valid->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_TOO_SHORT; + + length = (FT_UInt)( valid->limit - table ); + } + + p = table + 6; + num_segs = TT_NEXT_USHORT( p ); /* read segCountX2 */ + + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + /* check that we have an even value here */ + if ( num_segs & 1 ) + FT_INVALID_DATA; + } + + num_segs /= 2; + + if ( length < 16 + num_segs * 2 * 4 ) + FT_INVALID_TOO_SHORT; + + /* check the search parameters - even though we never use them */ + /* */ + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + /* check the values of `searchRange', `entrySelector', `rangeShift' */ + FT_UInt search_range = TT_NEXT_USHORT( p ); + FT_UInt entry_selector = TT_NEXT_USHORT( p ); + FT_UInt range_shift = TT_NEXT_USHORT( p ); + + + if ( ( search_range | range_shift ) & 1 ) /* must be even values */ + FT_INVALID_DATA; + + search_range /= 2; + range_shift /= 2; + + /* `search range' is the greatest power of 2 that is <= num_segs */ + + if ( search_range > num_segs || + search_range * 2 < num_segs || + search_range + range_shift != num_segs || + search_range != ( 1U << entry_selector ) ) + FT_INVALID_DATA; + } + + ends = table + 14; + starts = table + 16 + num_segs * 2; + deltas = starts + num_segs * 2; + offsets = deltas + num_segs * 2; + glyph_ids = offsets + num_segs * 2; + + /* check last segment; its end count value must be 0xFFFF */ + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + p = ends + ( num_segs - 1 ) * 2; + if ( TT_PEEK_USHORT( p ) != 0xFFFFU ) + FT_INVALID_DATA; + } + + { + FT_UInt start, end, offset, n; + FT_UInt last_start = 0, last_end = 0; + FT_Int delta; + FT_Byte* p_start = starts; + FT_Byte* p_end = ends; + FT_Byte* p_delta = deltas; + FT_Byte* p_offset = offsets; + + + for ( n = 0; n < num_segs; n++ ) + { + p = p_offset; + start = TT_NEXT_USHORT( p_start ); + end = TT_NEXT_USHORT( p_end ); + delta = TT_NEXT_SHORT( p_delta ); + offset = TT_NEXT_USHORT( p_offset ); + + if ( start > end ) + FT_INVALID_DATA; + + /* this test should be performed at default validation level; */ + /* unfortunately, some popular Asian fonts have overlapping */ + /* ranges in their charmaps */ + /* */ + if ( start <= last_end && n > 0 ) + { + if ( valid->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + else + { + /* allow overlapping segments, provided their start points */ + /* and end points, respectively, are in ascending order */ + /* */ + if ( last_start > start || last_end > end ) + error |= TT_CMAP_FLAG_UNSORTED; + else + error |= TT_CMAP_FLAG_OVERLAPPING; + } + } + + if ( offset && offset != 0xFFFFU ) + { + p += offset; /* start of glyph ID array */ + + /* check that we point within the glyph IDs table only */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( p < glyph_ids || + p + ( end - start + 1 ) * 2 > table + length ) + FT_INVALID_DATA; + } + /* Some fonts handle the last segment incorrectly. In */ + /* theory, 0xFFFF might point to an ordinary glyph -- */ + /* a cmap 4 is versatile and could be used for any */ + /* encoding, not only Unicode. However, reality shows */ + /* that far too many fonts are sloppy and incorrectly */ + /* set all fields but `start' and `end' for the last */ + /* segment if it contains only a single character. */ + /* */ + /* We thus omit the test here, delaying it to the */ + /* routines which actually access the cmap. */ + else if ( n != num_segs - 1 || + !( start == 0xFFFFU && end == 0xFFFFU ) ) + { + if ( p < glyph_ids || + p + ( end - start + 1 ) * 2 > valid->limit ) + FT_INVALID_DATA; + } + + /* check glyph indices within the segment range */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt i, idx; + + + for ( i = start; i < end; i++ ) + { + idx = FT_NEXT_USHORT( p ); + if ( idx != 0 ) + { + idx = (FT_UInt)( idx + delta ) & 0xFFFFU; + + if ( idx >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + else if ( offset == 0xFFFFU ) + { + /* some fonts (erroneously?) use a range offset of 0xFFFF */ + /* to mean missing glyph in cmap table */ + /* */ + if ( valid->level >= FT_VALIDATE_PARANOID || + n != num_segs - 1 || + !( start == 0xFFFFU && end == 0xFFFFU ) ) + FT_INVALID_DATA; + } + + last_start = start; + last_end = end; + } + } + + return error; + } + + + static FT_UInt + tt_cmap4_char_map_linear( TT_CMap cmap, + FT_UInt32* pcharcode, + FT_Bool next ) + { + FT_UInt num_segs2, start, end, offset; + FT_Int delta; + FT_UInt i, num_segs; + FT_UInt32 charcode = *pcharcode; + FT_UInt gindex = 0; + FT_Byte* p; + + + p = cmap->data + 6; + num_segs2 = FT_PAD_FLOOR( TT_PEEK_USHORT( p ), 2 ); + + num_segs = num_segs2 >> 1; + + if ( !num_segs ) + return 0; + + if ( next ) + charcode++; + + /* linear search */ + for ( ; charcode <= 0xFFFFU; charcode++ ) + { + FT_Byte* q; + + + p = cmap->data + 14; /* ends table */ + q = cmap->data + 16 + num_segs2; /* starts table */ + + for ( i = 0; i < num_segs; i++ ) + { + end = TT_NEXT_USHORT( p ); + start = TT_NEXT_USHORT( q ); + + if ( charcode >= start && charcode <= end ) + { + p = q - 2 + num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( i >= num_segs - 1 && + start == 0xFFFFU && end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + delta = 1; + offset = 0; + } + } + + if ( offset == 0xFFFFU ) + continue; + + if ( offset ) + { + p += offset + ( charcode - start ) * 2; + gindex = TT_PEEK_USHORT( p ); + if ( gindex != 0 ) + gindex = (FT_UInt)( gindex + delta ) & 0xFFFFU; + } + else + gindex = (FT_UInt)( charcode + delta ) & 0xFFFFU; + + break; + } + } + + if ( !next || gindex ) + break; + } + + if ( next && gindex ) + *pcharcode = charcode; + + return gindex; + } + + + static FT_UInt + tt_cmap4_char_map_binary( TT_CMap cmap, + FT_UInt32* pcharcode, + FT_Bool next ) + { + FT_UInt num_segs2, start, end, offset; + FT_Int delta; + FT_UInt max, min, mid, num_segs; + FT_UInt charcode = (FT_UInt)*pcharcode; + FT_UInt gindex = 0; + FT_Byte* p; + + + p = cmap->data + 6; + num_segs2 = FT_PAD_FLOOR( TT_PEEK_USHORT( p ), 2 ); + + if ( !num_segs2 ) + return 0; + + num_segs = num_segs2 >> 1; + + /* make compiler happy */ + mid = num_segs; + end = 0xFFFFU; + + if ( next ) + charcode++; + + min = 0; + max = num_segs; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 14 + mid * 2; + end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + + if ( charcode < start ) + max = mid; + else if ( charcode > end ) + min = mid + 1; + else + { + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( mid >= num_segs - 1 && + start == 0xFFFFU && end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + delta = 1; + offset = 0; + } + } + + /* search the first segment containing `charcode' */ + if ( cmap->flags & TT_CMAP_FLAG_OVERLAPPING ) + { + FT_UInt i; + + + /* call the current segment `max' */ + max = mid; + + if ( offset == 0xFFFFU ) + mid = max + 1; + + /* search in segments before the current segment */ + for ( i = max ; i > 0; i-- ) + { + FT_UInt prev_end; + FT_Byte* old_p; + + + old_p = p; + p = cmap->data + 14 + ( i - 1 ) * 2; + prev_end = TT_PEEK_USHORT( p ); + + if ( charcode > prev_end ) + { + p = old_p; + break; + } + + end = prev_end; + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + if ( offset != 0xFFFFU ) + mid = i - 1; + } + + /* no luck */ + if ( mid == max + 1 ) + { + if ( i != max ) + { + p = cmap->data + 14 + max * 2; + end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + } + + mid = max; + + /* search in segments after the current segment */ + for ( i = max + 1; i < num_segs; i++ ) + { + FT_UInt next_end, next_start; + + + p = cmap->data + 14 + i * 2; + next_end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + next_start = TT_PEEK_USHORT( p ); + + if ( charcode < next_start ) + break; + + end = next_end; + start = next_start; + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + if ( offset != 0xFFFFU ) + mid = i; + } + i--; + + /* still no luck */ + if ( mid == max ) + { + mid = i; + + break; + } + } + + /* end, start, delta, and offset are for the i'th segment */ + if ( mid != i ) + { + p = cmap->data + 14 + mid * 2; + end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + } + } + else + { + if ( offset == 0xFFFFU ) + break; + } + + if ( offset ) + { + p += offset + ( charcode - start ) * 2; + gindex = TT_PEEK_USHORT( p ); + if ( gindex != 0 ) + gindex = (FT_UInt)( gindex + delta ) & 0xFFFFU; + } + else + gindex = (FT_UInt)( charcode + delta ) & 0xFFFFU; + + break; + } + } + + if ( next ) + { + TT_CMap4 cmap4 = (TT_CMap4)cmap; + + + /* if `charcode' is not in any segment, then `mid' is */ + /* the segment nearest to `charcode' */ + /* */ + + if ( charcode > end ) + { + mid++; + if ( mid == num_segs ) + return 0; + } + + if ( tt_cmap4_set_range( cmap4, mid ) ) + { + if ( gindex ) + *pcharcode = charcode; + } + else + { + cmap4->cur_charcode = charcode; + + if ( gindex ) + cmap4->cur_gindex = gindex; + else + { + cmap4->cur_charcode = charcode; + tt_cmap4_next( cmap4 ); + gindex = cmap4->cur_gindex; + } + + if ( gindex ) + *pcharcode = cmap4->cur_charcode; + } + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap4_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + if ( char_code >= 0x10000UL ) + return 0; + + if ( cmap->flags & TT_CMAP_FLAG_UNSORTED ) + return tt_cmap4_char_map_linear( cmap, &char_code, 0 ); + else + return tt_cmap4_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap4_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt gindex; + + + if ( *pchar_code >= 0xFFFFU ) + return 0; + + if ( cmap->flags & TT_CMAP_FLAG_UNSORTED ) + gindex = tt_cmap4_char_map_linear( cmap, pchar_code, 1 ); + else + { + TT_CMap4 cmap4 = (TT_CMap4)cmap; + + + /* no need to search */ + if ( *pchar_code == cmap4->cur_charcode ) + { + tt_cmap4_next( cmap4 ); + gindex = cmap4->cur_gindex; + if ( gindex ) + *pchar_code = cmap4->cur_charcode; + } + else + gindex = tt_cmap4_char_map_binary( cmap, pchar_code, 1 ); + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap4_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 4; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap4_class_rec, + sizeof ( TT_CMap4Rec ), + (FT_CMap_InitFunc) tt_cmap4_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap4_char_index, + (FT_CMap_CharNextFunc) tt_cmap4_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 4, + (TT_CMap_ValidateFunc) tt_cmap4_validate, + (TT_CMap_Info_GetFunc) tt_cmap4_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_4 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 6 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 4 */ + /* length 2 USHORT table length in bytes */ + /* language 4 USHORT Mac language code */ + /* */ + /* first 6 USHORT first segment code */ + /* count 8 USHORT segment size in chars */ + /* glyphIds 10 USHORT[count] glyph IDs */ + /* */ + /* A very simplified segment mapping. */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_6 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap6_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_UInt length, count; + + + if ( table + 10 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 2; + length = TT_NEXT_USHORT( p ); + + p = table + 8; /* skip language and start index */ + count = TT_NEXT_USHORT( p ); + + if ( table + length > valid->limit || length < 10 + count * 2 ) + FT_INVALID_TOO_SHORT; + + /* check glyph indices */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt gindex; + + + for ( ; count > 0; count-- ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap6_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* p = table + 6; + FT_UInt start = TT_NEXT_USHORT( p ); + FT_UInt count = TT_NEXT_USHORT( p ); + FT_UInt idx = (FT_UInt)( char_code - start ); + + + if ( idx < count ) + { + p += 2 * idx; + result = TT_PEEK_USHORT( p ); + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap6_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_Byte* table = cmap->data; + FT_UInt32 result = 0; + FT_UInt32 char_code = *pchar_code + 1; + FT_UInt gindex = 0; + + FT_Byte* p = table + 6; + FT_UInt start = TT_NEXT_USHORT( p ); + FT_UInt count = TT_NEXT_USHORT( p ); + FT_UInt idx; + + + if ( char_code >= 0x10000UL ) + goto Exit; + + if ( char_code < start ) + char_code = start; + + idx = (FT_UInt)( char_code - start ); + p += 2 * idx; + + for ( ; idx < count; idx++ ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex != 0 ) + { + result = char_code; + break; + } + char_code++; + } + + Exit: + *pchar_code = result; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap6_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 6; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap6_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap6_char_index, + (FT_CMap_CharNextFunc) tt_cmap6_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 6, + (TT_CMap_ValidateFunc) tt_cmap6_validate, + (TT_CMap_Info_GetFunc) tt_cmap6_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_6 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 8 *****/ + /***** *****/ + /***** It is hard to completely understand what the OpenType spec *****/ + /***** says about this format, but here is my conclusion. *****/ + /***** *****/ + /***** The purpose of this format is to easily map UTF-16 text to *****/ + /***** glyph indices. Basically, the `char_code' must be in one of *****/ + /***** the following formats: *****/ + /***** *****/ + /***** - A 16-bit value that isn't part of the Unicode Surrogates *****/ + /***** Area (i.e. U+D800-U+DFFF). *****/ + /***** *****/ + /***** - A 32-bit value, made of two surrogate values, i.e.. if *****/ + /***** `char_code = (char_hi << 16) | char_lo', then both *****/ + /***** `char_hi' and `char_lo' must be in the Surrogates Area. *****/ + /***** Area. *****/ + /***** *****/ + /***** The `is32' table embedded in the charmap indicates whether a *****/ + /***** given 16-bit value is in the surrogates area or not. *****/ + /***** *****/ + /***** So, for any given `char_code', we can assert the following: *****/ + /***** *****/ + /***** If `char_hi == 0' then we must have `is32[char_lo] == 0'. *****/ + /***** *****/ + /***** If `char_hi != 0' then we must have both *****/ + /***** `is32[char_hi] != 0' and `is32[char_lo] != 0'. *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 8 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* is32 12 BYTE[8192] 32-bitness bitmap */ + /* count 8204 ULONG number of groups */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* startId 8 ULONG start glyph ID for the group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_8 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap8_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 4; + FT_Byte* is32; + FT_UInt32 length; + FT_UInt32 num_groups; + + + if ( table + 16 + 8192 > valid->limit ) + FT_INVALID_TOO_SHORT; + + length = TT_NEXT_ULONG( p ); + if ( length > (FT_UInt32)( valid->limit - table ) || length < 8192 + 16 ) + FT_INVALID_TOO_SHORT; + + is32 = table + 12; + p = is32 + 8192; /* skip `is32' array */ + num_groups = TT_NEXT_ULONG( p ); + + if ( p + num_groups * 12 > valid->limit ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_UInt32 n, start, end, start_id, count, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + FT_UInt hi, lo; + + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( start_id + end - start >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + + count = (FT_UInt32)( end - start + 1 ); + + if ( start & ~0xFFFFU ) + { + /* start_hi != 0; check that is32[i] is 1 for each i in */ + /* the `hi' and `lo' of the range [start..end] */ + for ( ; count > 0; count--, start++ ) + { + hi = (FT_UInt)( start >> 16 ); + lo = (FT_UInt)( start & 0xFFFFU ); + + if ( (is32[hi >> 3] & ( 0x80 >> ( hi & 7 ) ) ) == 0 ) + FT_INVALID_DATA; + + if ( (is32[lo >> 3] & ( 0x80 >> ( lo & 7 ) ) ) == 0 ) + FT_INVALID_DATA; + } + } + else + { + /* start_hi == 0; check that is32[i] is 0 for each i in */ + /* the range [start..end] */ + + /* end_hi cannot be != 0! */ + if ( end & ~0xFFFFU ) + FT_INVALID_DATA; + + for ( ; count > 0; count--, start++ ) + { + lo = (FT_UInt)( start & 0xFFFFU ); + + if ( (is32[lo >> 3] & ( 0x80 >> ( lo & 7 ) ) ) != 0 ) + FT_INVALID_DATA; + } + } + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap8_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* p = table + 8204; + FT_UInt32 num_groups = TT_NEXT_ULONG( p ); + FT_UInt32 start, end, start_id; + + + for ( ; num_groups > 0; num_groups-- ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + break; + + if ( char_code <= end ) + { + result = (FT_UInt)( start_id + char_code - start ); + break; + } + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap8_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt32 result = 0; + FT_UInt32 char_code = *pchar_code + 1; + FT_UInt gindex = 0; + FT_Byte* table = cmap->data; + FT_Byte* p = table + 8204; + FT_UInt32 num_groups = TT_NEXT_ULONG( p ); + FT_UInt32 start, end, start_id; + + + p = table + 8208; + + for ( ; num_groups > 0; num_groups-- ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + if ( char_code <= end ) + { + gindex = (FT_UInt)( char_code - start + start_id ); + if ( gindex != 0 ) + { + result = char_code; + goto Exit; + } + } + } + + Exit: + *pchar_code = result; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap8_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 8; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap8_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap8_char_index, + (FT_CMap_CharNextFunc) tt_cmap8_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 8, + (TT_CMap_ValidateFunc) tt_cmap8_validate, + (TT_CMap_Info_GetFunc) tt_cmap8_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_8 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 10 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 10 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* */ + /* start 12 ULONG first char in range */ + /* count 16 ULONG number of chars in range */ + /* glyphIds 20 USHORT[count] glyph indices covered */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_10 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap10_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 4; + FT_ULong length, count; + + + if ( table + 20 > valid->limit ) + FT_INVALID_TOO_SHORT; + + length = TT_NEXT_ULONG( p ); + p = table + 16; + count = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 20 + count * 2 ) + FT_INVALID_TOO_SHORT; + + /* check glyph indices */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt gindex; + + + for ( ; count > 0; count-- ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap10_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* p = table + 12; + FT_UInt32 start = TT_NEXT_ULONG( p ); + FT_UInt32 count = TT_NEXT_ULONG( p ); + FT_UInt32 idx = (FT_ULong)( char_code - start ); + + + if ( idx < count ) + { + p += 2 * idx; + result = TT_PEEK_USHORT( p ); + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap10_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_Byte* table = cmap->data; + FT_UInt32 char_code = *pchar_code + 1; + FT_UInt gindex = 0; + FT_Byte* p = table + 12; + FT_UInt32 start = TT_NEXT_ULONG( p ); + FT_UInt32 count = TT_NEXT_ULONG( p ); + FT_UInt32 idx; + + + if ( char_code < start ) + char_code = start; + + idx = (FT_UInt32)( char_code - start ); + p += 2 * idx; + + for ( ; idx < count; idx++ ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex != 0 ) + break; + char_code++; + } + + *pchar_code = char_code; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap10_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 10; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap10_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap10_char_index, + (FT_CMap_CharNextFunc) tt_cmap10_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 10, + (TT_CMap_ValidateFunc) tt_cmap10_validate, + (TT_CMap_Info_GetFunc) tt_cmap10_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_10 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 12 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 12 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* count 12 ULONG number of groups */ + /* 16 */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* startId 8 ULONG start glyph ID for the group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_12 + + typedef struct TT_CMap12Rec_ + { + TT_CMapRec cmap; + FT_Bool valid; + FT_ULong cur_charcode; + FT_UInt cur_gindex; + FT_ULong cur_group; + FT_ULong num_groups; + + } TT_CMap12Rec, *TT_CMap12; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap12_init( TT_CMap12 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 12; + cmap->num_groups = FT_PEEK_ULONG( table ); + + cmap->valid = 0; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap12_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_ULong length; + FT_ULong num_groups; + + + if ( table + 16 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 4; + length = TT_NEXT_ULONG( p ); + + p = table + 12; + num_groups = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 16 + 12 * num_groups ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_ULong n, start, end, start_id, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( start_id + end - start >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + /* search the index of the charcode next to cmap->cur_charcode */ + /* cmap->cur_group should be set up properly by caller */ + /* */ + static void + tt_cmap12_next( TT_CMap12 cmap ) + { + FT_Byte* p; + FT_ULong start, end, start_id, char_code; + FT_ULong n; + FT_UInt gindex; + + + if ( cmap->cur_charcode >= 0xFFFFFFFFUL ) + goto Fail; + + char_code = cmap->cur_charcode + 1; + + n = cmap->cur_group; + + for ( n = cmap->cur_group; n < cmap->num_groups; n++ ) + { + p = cmap->cmap.data + 16 + 12 * n; + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_PEEK_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + for ( ; char_code <= end; char_code++ ) + { + gindex = (FT_UInt)( start_id + char_code - start ); + + if ( gindex ) + { + cmap->cur_charcode = char_code;; + cmap->cur_gindex = gindex; + cmap->cur_group = n; + + return; + } + } + } + + Fail: + cmap->valid = 0; + } + + + static FT_UInt + tt_cmap12_char_map_binary( TT_CMap cmap, + FT_UInt32* pchar_code, + FT_Bool next ) + { + FT_UInt gindex = 0; + FT_Byte* p = cmap->data + 12; + FT_UInt32 num_groups = TT_PEEK_ULONG( p ); + FT_UInt32 char_code = *pchar_code; + FT_UInt32 start, end, start_id; + FT_UInt32 max, min, mid; + + + if ( !num_groups ) + return 0; + + /* make compiler happy */ + mid = num_groups; + end = 0xFFFFFFFFUL; + + if ( next ) + char_code++; + + min = 0; + max = num_groups; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 16 + 12 * mid; + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + max = mid; + else if ( char_code > end ) + min = mid + 1; + else + { + start_id = TT_PEEK_ULONG( p ); + gindex = (FT_UInt)( start_id + char_code - start ); + + break; + } + } + + if ( next ) + { + TT_CMap12 cmap12 = (TT_CMap12)cmap; + + + /* if `char_code' is not in any group, then `mid' is */ + /* the group nearest to `char_code' */ + /* */ + + if ( char_code > end ) + { + mid++; + if ( mid == num_groups ) + return 0; + } + + cmap12->valid = 1; + cmap12->cur_charcode = char_code; + cmap12->cur_group = mid; + + if ( !gindex ) + { + tt_cmap12_next( cmap12 ); + + if ( cmap12->valid ) + gindex = cmap12->cur_gindex; + } + else + cmap12->cur_gindex = gindex; + + if ( gindex ) + *pchar_code = cmap12->cur_charcode; + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap12_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + return tt_cmap12_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap12_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + TT_CMap12 cmap12 = (TT_CMap12)cmap; + FT_ULong gindex; + + + if ( cmap12->cur_charcode >= 0xFFFFFFFFUL ) + return 0; + + /* no need to search */ + if ( cmap12->valid && cmap12->cur_charcode == *pchar_code ) + { + tt_cmap12_next( cmap12 ); + if ( cmap12->valid ) + { + gindex = cmap12->cur_gindex; + + /* XXX: check cur_charcode overflow is expected */ + if ( gindex ) + *pchar_code = (FT_UInt32)cmap12->cur_charcode; + } + else + gindex = 0; + } + else + gindex = tt_cmap12_char_map_binary( cmap, pchar_code, 1 ); + + /* XXX: check gindex overflow is expected */ + return (FT_UInt32)gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap12_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 12; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap12_class_rec, + sizeof ( TT_CMap12Rec ), + + (FT_CMap_InitFunc) tt_cmap12_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap12_char_index, + (FT_CMap_CharNextFunc) tt_cmap12_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 12, + (TT_CMap_ValidateFunc) tt_cmap12_validate, + (TT_CMap_Info_GetFunc) tt_cmap12_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_12 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 13 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 13 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* count 12 ULONG number of groups */ + /* 16 */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* glyphId 8 ULONG glyph ID for the whole group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_13 + + typedef struct TT_CMap13Rec_ + { + TT_CMapRec cmap; + FT_Bool valid; + FT_ULong cur_charcode; + FT_UInt cur_gindex; + FT_ULong cur_group; + FT_ULong num_groups; + + } TT_CMap13Rec, *TT_CMap13; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_init( TT_CMap13 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 12; + cmap->num_groups = FT_PEEK_ULONG( table ); + + cmap->valid = 0; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_ULong length; + FT_ULong num_groups; + + + if ( table + 16 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 4; + length = TT_NEXT_ULONG( p ); + + p = table + 12; + num_groups = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 16 + 12 * num_groups ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_ULong n, start, end, glyph_id, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + glyph_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( glyph_id >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + /* search the index of the charcode next to cmap->cur_charcode */ + /* cmap->cur_group should be set up properly by caller */ + /* */ + static void + tt_cmap13_next( TT_CMap13 cmap ) + { + FT_Byte* p; + FT_ULong start, end, glyph_id, char_code; + FT_ULong n; + FT_UInt gindex; + + + if ( cmap->cur_charcode >= 0xFFFFFFFFUL ) + goto Fail; + + char_code = cmap->cur_charcode + 1; + + n = cmap->cur_group; + + for ( n = cmap->cur_group; n < cmap->num_groups; n++ ) + { + p = cmap->cmap.data + 16 + 12 * n; + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + glyph_id = TT_PEEK_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + if ( char_code <= end ) + { + gindex = (FT_UInt)glyph_id; + + if ( gindex ) + { + cmap->cur_charcode = char_code;; + cmap->cur_gindex = gindex; + cmap->cur_group = n; + + return; + } + } + } + + Fail: + cmap->valid = 0; + } + + + static FT_UInt + tt_cmap13_char_map_binary( TT_CMap cmap, + FT_UInt32* pchar_code, + FT_Bool next ) + { + FT_UInt gindex = 0; + FT_Byte* p = cmap->data + 12; + FT_UInt32 num_groups = TT_PEEK_ULONG( p ); + FT_UInt32 char_code = *pchar_code; + FT_UInt32 start, end; + FT_UInt32 max, min, mid; + + + if ( !num_groups ) + return 0; + + /* make compiler happy */ + mid = num_groups; + end = 0xFFFFFFFFUL; + + if ( next ) + char_code++; + + min = 0; + max = num_groups; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 16 + 12 * mid; + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + max = mid; + else if ( char_code > end ) + min = mid + 1; + else + { + gindex = (FT_UInt)TT_PEEK_ULONG( p ); + + break; + } + } + + if ( next ) + { + TT_CMap13 cmap13 = (TT_CMap13)cmap; + + + /* if `char_code' is not in any group, then `mid' is */ + /* the group nearest to `char_code' */ + /* */ + + if ( char_code > end ) + { + mid++; + if ( mid == num_groups ) + return 0; + } + + cmap13->valid = 1; + cmap13->cur_charcode = char_code; + cmap13->cur_group = mid; + + if ( !gindex ) + { + tt_cmap13_next( cmap13 ); + + if ( cmap13->valid ) + gindex = cmap13->cur_gindex; + } + else + cmap13->cur_gindex = gindex; + + if ( gindex ) + *pchar_code = cmap13->cur_charcode; + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap13_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + return tt_cmap13_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap13_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + TT_CMap13 cmap13 = (TT_CMap13)cmap; + FT_UInt gindex; + + + if ( cmap13->cur_charcode >= 0xFFFFFFFFUL ) + return 0; + + /* no need to search */ + if ( cmap13->valid && cmap13->cur_charcode == *pchar_code ) + { + tt_cmap13_next( cmap13 ); + if ( cmap13->valid ) + { + gindex = cmap13->cur_gindex; + if ( gindex ) + *pchar_code = cmap13->cur_charcode; + } + else + gindex = 0; + } + else + gindex = tt_cmap13_char_map_binary( cmap, pchar_code, 1 ); + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 13; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap13_class_rec, + sizeof ( TT_CMap13Rec ), + + (FT_CMap_InitFunc) tt_cmap13_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap13_char_index, + (FT_CMap_CharNextFunc) tt_cmap13_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 13, + (TT_CMap_ValidateFunc) tt_cmap13_validate, + (TT_CMap_Info_GetFunc) tt_cmap13_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_13 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 14 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 14 */ + /* length 2 ULONG table length in bytes */ + /* numSelector 6 ULONG number of variation sel. records */ + /* */ + /* Followed by numSelector records, each of which looks like */ + /* */ + /* varSelector 0 UINT24 Unicode codepoint of sel. */ + /* defaultOff 3 ULONG offset to a default UVS table */ + /* describing any variants to be found in */ + /* the normal Unicode subtable. */ + /* nonDefOff 7 ULONG offset to a non-default UVS table */ + /* describing any variants not in the */ + /* standard cmap, with GIDs here */ + /* (either offset may be 0 NULL) */ + /* */ + /* Selectors are sorted by code point. */ + /* */ + /* A default Unicode Variation Selector (UVS) subtable is just a list of */ + /* ranges of code points which are to be found in the standard cmap. No */ + /* glyph IDs (GIDs) here. */ + /* */ + /* numRanges 0 ULONG number of ranges following */ + /* */ + /* A range looks like */ + /* */ + /* uniStart 0 UINT24 code point of the first character in */ + /* this range */ + /* additionalCnt 3 UBYTE count of additional characters in this */ + /* range (zero means a range of a single */ + /* character) */ + /* */ + /* Ranges are sorted by `uniStart'. */ + /* */ + /* A non-default Unicode Variation Selector (UVS) subtable is a list of */ + /* mappings from codepoint to GID. */ + /* */ + /* numMappings 0 ULONG number of mappings */ + /* */ + /* A range looks like */ + /* */ + /* uniStart 0 UINT24 code point of the first character in */ + /* this range */ + /* GID 3 USHORT and its GID */ + /* */ + /* Ranges are sorted by `uniStart'. */ + +#ifdef TT_CONFIG_CMAP_FORMAT_14 + + typedef struct TT_CMap14Rec_ + { + TT_CMapRec cmap; + FT_ULong num_selectors; + + /* This array is used to store the results of various + * cmap 14 query functions. The data is overwritten + * on each call to these functions. + */ + FT_UInt32 max_results; + FT_UInt32* results; + FT_Memory memory; + + } TT_CMap14Rec, *TT_CMap14; + + + FT_CALLBACK_DEF( void ) + tt_cmap14_done( TT_CMap14 cmap ) + { + FT_Memory memory = cmap->memory; + + + cmap->max_results = 0; + if ( memory != NULL && cmap->results != NULL ) + FT_FREE( cmap->results ); + } + + + static FT_Error + tt_cmap14_ensure( TT_CMap14 cmap, + FT_UInt32 num_results, + FT_Memory memory ) + { + FT_UInt32 old_max = cmap->max_results; + FT_Error error = SFNT_Err_Ok; + + + if ( num_results > cmap->max_results ) + { + cmap->memory = memory; + + if ( FT_QRENEW_ARRAY( cmap->results, old_max, num_results ) ) + return error; + + cmap->max_results = num_results; + } + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_init( TT_CMap14 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 6; + cmap->num_selectors = FT_PEEK_ULONG( table ); + cmap->max_results = 0; + cmap->results = NULL; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; + FT_ULong length = TT_NEXT_ULONG( p ); + FT_ULong num_selectors = TT_NEXT_ULONG( p ); + + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 10 + 11 * num_selectors ) + FT_INVALID_TOO_SHORT; + + /* check selectors, they must be in increasing order */ + { + /* we start lastVarSel at 1 because a variant selector value of 0 + * isn't valid. + */ + FT_ULong n, lastVarSel = 1; + + + for ( n = 0; n < num_selectors; n++ ) + { + FT_ULong varSel = TT_NEXT_UINT24( p ); + FT_ULong defOff = TT_NEXT_ULONG( p ); + FT_ULong nondefOff = TT_NEXT_ULONG( p ); + + + if ( defOff >= length || nondefOff >= length ) + FT_INVALID_TOO_SHORT; + + if ( varSel < lastVarSel ) + FT_INVALID_DATA; + + lastVarSel = varSel + 1; + + /* check the default table (these glyphs should be reached */ + /* through the normal Unicode cmap, no GIDs, just check order) */ + if ( defOff != 0 ) + { + FT_Byte* defp = table + defOff; + FT_ULong numRanges = TT_NEXT_ULONG( defp ); + FT_ULong i; + FT_ULong lastBase = 0; + + + if ( defp + numRanges * 4 > valid->limit ) + FT_INVALID_TOO_SHORT; + + for ( i = 0; i < numRanges; ++i ) + { + FT_ULong base = TT_NEXT_UINT24( defp ); + FT_ULong cnt = FT_NEXT_BYTE( defp ); + + + if ( base + cnt >= 0x110000UL ) /* end of Unicode */ + FT_INVALID_DATA; + + if ( base < lastBase ) + FT_INVALID_DATA; + + lastBase = base + cnt + 1U; + } + } + + /* and the non-default table (these glyphs are specified here) */ + if ( nondefOff != 0 ) + { + FT_Byte* ndp = table + nondefOff; + FT_ULong numMappings = TT_NEXT_ULONG( ndp ); + FT_ULong i, lastUni = 0; + + + if ( numMappings * 4 > (FT_ULong)( valid->limit - ndp ) ) + FT_INVALID_TOO_SHORT; + + for ( i = 0; i < numMappings; ++i ) + { + FT_ULong uni = TT_NEXT_UINT24( ndp ); + FT_ULong gid = TT_NEXT_USHORT( ndp ); + + + if ( uni >= 0x110000UL ) /* end of Unicode */ + FT_INVALID_DATA; + + if ( uni < lastUni ) + FT_INVALID_DATA; + + lastUni = uni + 1U; + + if ( valid->level >= FT_VALIDATE_TIGHT && + gid >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap14_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_UNUSED( cmap ); + FT_UNUSED( char_code ); + + /* This can't happen */ + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap14_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UNUSED( cmap ); + + /* This can't happen */ + *pchar_code = 0; + return 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_UNUSED( cmap ); + + cmap_info->format = 14; + /* subtable 14 does not define a language field */ + cmap_info->language = 0xFFFFFFFFUL; + + return SFNT_Err_Ok; + } + + + static FT_UInt + tt_cmap14_char_map_def_binary( FT_Byte *base, + FT_UInt32 char_code ) + { + FT_UInt32 numRanges = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numRanges; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 4 * mid; + FT_ULong start = TT_NEXT_UINT24( p ); + FT_UInt cnt = FT_NEXT_BYTE( p ); + + + if ( char_code < start ) + max = mid; + else if ( char_code > start+cnt ) + min = mid + 1; + else + return TRUE; + } + + return FALSE; + } + + + static FT_UInt + tt_cmap14_char_map_nondef_binary( FT_Byte *base, + FT_UInt32 char_code ) + { + FT_UInt32 numMappings = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numMappings; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 5 * mid; + FT_UInt32 uni = (FT_UInt32)TT_NEXT_UINT24( p ); + + + if ( char_code < uni ) + max = mid; + else if ( char_code > uni ) + min = mid + 1; + else + return TT_PEEK_USHORT( p ); + } + + return 0; + } + + + static FT_Byte* + tt_cmap14_find_variant( FT_Byte *base, + FT_UInt32 variantCode ) + { + FT_UInt32 numVar = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numVar; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 11 * mid; + FT_ULong varSel = TT_NEXT_UINT24( p ); + + + if ( variantCode < varSel ) + max = mid; + else if ( variantCode > varSel ) + min = mid + 1; + else + return p; + } + + return NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap14_char_var_index( TT_CMap cmap, + TT_CMap ucmap, + FT_UInt32 charcode, + FT_UInt32 variantSelector) + { + FT_Byte* p = tt_cmap14_find_variant( cmap->data + 6, variantSelector ); + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return 0; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_PEEK_ULONG( p ); + + if ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, charcode ) ) + { + /* This is the default variant of this charcode. GID not stored */ + /* here; stored in the normal Unicode charmap instead. */ + return ucmap->cmap.clazz->char_index( &ucmap->cmap, charcode ); + } + + if ( nondefOff != 0 ) + return tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charcode ); + + return 0; + } + + + FT_CALLBACK_DEF( FT_Int ) + tt_cmap14_char_var_isdefault( TT_CMap cmap, + FT_UInt32 charcode, + FT_UInt32 variantSelector ) + { + FT_Byte* p = tt_cmap14_find_variant( cmap->data + 6, variantSelector ); + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return -1; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_NEXT_ULONG( p ); + + if ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, charcode ) ) + return 1; + + if ( nondefOff != 0 && + tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charcode ) != 0 ) + return 0; + + return -1; + } + + + FT_CALLBACK_DEF( FT_UInt32* ) + tt_cmap14_variants( TT_CMap cmap, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14)cmap; + FT_UInt32 count = cmap14->num_selectors; + FT_Byte* p = cmap->data + 10; + FT_UInt32* result; + FT_UInt32 i; + + + if ( tt_cmap14_ensure( cmap14, ( count + 1 ), memory ) ) + return NULL; + + result = cmap14->results; + for ( i = 0; i < count; ++i ) + { + result[i] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 8; + } + result[i] = 0; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 * ) + tt_cmap14_char_variants( TT_CMap cmap, + FT_Memory memory, + FT_UInt32 charCode ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 count = cmap14->num_selectors; + FT_Byte* p = cmap->data + 10; + FT_UInt32* q; + + + if ( tt_cmap14_ensure( cmap14, ( count + 1 ), memory ) ) + return NULL; + + for ( q = cmap14->results; count > 0; --count ) + { + FT_UInt32 varSel = TT_NEXT_UINT24( p ); + FT_ULong defOff = TT_NEXT_ULONG( p ); + FT_ULong nondefOff = TT_NEXT_ULONG( p ); + + + if ( ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, + charCode ) ) || + ( nondefOff != 0 && + tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charCode ) != 0 ) ) + { + q[0] = varSel; + q++; + } + } + q[0] = 0; + + return cmap14->results; + } + + + static FT_UInt + tt_cmap14_def_char_count( FT_Byte *p ) + { + FT_UInt32 numRanges = (FT_UInt32)TT_NEXT_ULONG( p ); + FT_UInt tot = 0; + + + p += 3; /* point to the first `cnt' field */ + for ( ; numRanges > 0; numRanges-- ) + { + tot += 1 + p[0]; + p += 4; + } + + return tot; + } + + + static FT_UInt32* + tt_cmap14_get_def_chars( TT_CMap cmap, + FT_Byte* p, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numRanges; + FT_UInt cnt; + FT_UInt32* q; + + + cnt = tt_cmap14_def_char_count( p ); + numRanges = (FT_UInt32)TT_NEXT_ULONG( p ); + + if ( tt_cmap14_ensure( cmap14, ( cnt + 1 ), memory ) ) + return NULL; + + for ( q = cmap14->results; numRanges > 0; --numRanges ) + { + FT_UInt32 uni = (FT_UInt32)TT_NEXT_UINT24( p ); + + + cnt = FT_NEXT_BYTE( p ) + 1; + do + { + q[0] = uni; + uni += 1; + q += 1; + } while ( --cnt != 0 ); + } + q[0] = 0; + + return cmap14->results; + } + + + static FT_UInt32* + tt_cmap14_get_nondef_chars( TT_CMap cmap, + FT_Byte *p, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numMappings; + FT_UInt i; + FT_UInt32 *ret; + + + numMappings = (FT_UInt32)TT_NEXT_ULONG( p ); + + if ( tt_cmap14_ensure( cmap14, ( numMappings + 1 ), memory ) ) + return NULL; + + ret = cmap14->results; + for ( i = 0; i < numMappings; ++i ) + { + ret[i] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + } + ret[i] = 0; + + return ret; + } + + + FT_CALLBACK_DEF( FT_UInt32 * ) + tt_cmap14_variant_chars( TT_CMap cmap, + FT_Memory memory, + FT_UInt32 variantSelector ) + { + FT_Byte *p = tt_cmap14_find_variant( cmap->data + 6, + variantSelector ); + FT_UInt32 *ret; + FT_Int i; + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return NULL; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_NEXT_ULONG( p ); + + if ( defOff == 0 && nondefOff == 0 ) + return NULL; + + if ( defOff == 0 ) + return tt_cmap14_get_nondef_chars( cmap, cmap->data + nondefOff, + memory ); + else if ( nondefOff == 0 ) + return tt_cmap14_get_def_chars( cmap, cmap->data + defOff, + memory ); + else + { + /* Both a default and a non-default glyph set? That's probably not */ + /* good font design, but the spec allows for it... */ + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numRanges; + FT_UInt32 numMappings; + FT_UInt32 duni; + FT_UInt32 dcnt; + FT_UInt32 nuni; + FT_Byte* dp; + FT_UInt di, ni, k; + + + p = cmap->data + nondefOff; + dp = cmap->data + defOff; + + numMappings = (FT_UInt32)TT_NEXT_ULONG( p ); + dcnt = tt_cmap14_def_char_count( dp ); + numRanges = (FT_UInt32)TT_NEXT_ULONG( dp ); + + if ( numMappings == 0 ) + return tt_cmap14_get_def_chars( cmap, cmap->data + defOff, + memory ); + if ( dcnt == 0 ) + return tt_cmap14_get_nondef_chars( cmap, cmap->data + nondefOff, + memory ); + + if ( tt_cmap14_ensure( cmap14, ( dcnt + numMappings + 1 ), memory ) ) + return NULL; + + ret = cmap14->results; + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + di = 1; + nuni = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + ni = 1; + i = 0; + + for ( ;; ) + { + if ( nuni > duni + dcnt ) + { + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + + ++di; + + if ( di > numRanges ) + break; + + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + } + else + { + if ( nuni < duni ) + ret[i++] = nuni; + /* If it is within the default range then ignore it -- */ + /* that should not have happened */ + ++ni; + if ( ni > numMappings ) + break; + + nuni = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + } + } + + if ( ni <= numMappings ) + { + /* If we get here then we have run out of all default ranges. */ + /* We have read one non-default mapping which we haven't stored */ + /* and there may be others that need to be read. */ + ret[i++] = nuni; + while ( ni < numMappings ) + { + ret[i++] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + ++ni; + } + } + else if ( di <= numRanges ) + { + /* If we get here then we have run out of all non-default */ + /* mappings. We have read one default range which we haven't */ + /* stored and there may be others that need to be read. */ + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + + while ( di < numRanges ) + { + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + ++di; + } + } + + ret[i] = 0; + + return ret; + } + } + + + FT_DEFINE_TT_CMAP(tt_cmap14_class_rec, + sizeof ( TT_CMap14Rec ), + + (FT_CMap_InitFunc) tt_cmap14_init, + (FT_CMap_DoneFunc) tt_cmap14_done, + (FT_CMap_CharIndexFunc)tt_cmap14_char_index, + (FT_CMap_CharNextFunc) tt_cmap14_char_next, + + /* Format 14 extension functions */ + (FT_CMap_CharVarIndexFunc) tt_cmap14_char_var_index, + (FT_CMap_CharVarIsDefaultFunc)tt_cmap14_char_var_isdefault, + (FT_CMap_VariantListFunc) tt_cmap14_variants, + (FT_CMap_CharVariantListFunc) tt_cmap14_char_variants, + (FT_CMap_VariantCharListFunc) tt_cmap14_variant_chars + , + 14, + (TT_CMap_ValidateFunc)tt_cmap14_validate, + (TT_CMap_Info_GetFunc)tt_cmap14_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_14 */ + + +#ifndef FT_CONFIG_OPTION_PIC + + static const TT_CMap_Class tt_cmap_classes[] = + { +#define TTCMAPCITEM(a) &a, +#include "ttcmapc.h" + NULL, + }; + +#else /*FT_CONFIG_OPTION_PIC*/ + + void FT_Destroy_Class_tt_cmap_classes(FT_Library library, TT_CMap_Class* clazz) + { + FT_Memory memory = library->memory; + if ( clazz ) + FT_FREE( clazz ); + } + + FT_Error FT_Create_Class_tt_cmap_classes(FT_Library library, TT_CMap_Class** output_class) + { + TT_CMap_Class* clazz; + TT_CMap_ClassRec* recs; + FT_Error error; + FT_Memory memory = library->memory; + int i = 0; + +#define TTCMAPCITEM(a) i++; +#include "ttcmapc.h" + + /* allocate enough space for both the pointers +terminator and the class instances */ + if ( FT_ALLOC( clazz, sizeof(*clazz)*(i+1)+sizeof(TT_CMap_ClassRec)*i ) ) + return error; + + /* the location of the class instances follows the array of pointers */ + recs = (TT_CMap_ClassRec*) (((char*)clazz)+(sizeof(*clazz)*(i+1))); + i=0; + +#undef TTCMAPCITEM +#define TTCMAPCITEM(a) \ + FT_Init_Class_##a(&recs[i]); \ + clazz[i] = &recs[i]; \ + i++; +#include "ttcmapc.h" + + clazz[i] = NULL; + + *output_class = clazz; + return SFNT_Err_Ok; + } + +#endif /*FT_CONFIG_OPTION_PIC*/ + + + /* parse the `cmap' table and build the corresponding TT_CMap objects */ + /* in the current face */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_build_cmaps( TT_Face face ) + { + FT_Byte* table = face->cmap_table; + FT_Byte* limit = table + face->cmap_size; + FT_UInt volatile num_cmaps; + FT_Byte* volatile p = table; + FT_Library library = FT_FACE_LIBRARY( face ); + + FT_UNUSED( library ); + + + if ( !p || p + 4 > limit ) + return SFNT_Err_Invalid_Table; + + /* only recognize format 0 */ + if ( TT_NEXT_USHORT( p ) != 0 ) + { + p -= 2; + FT_ERROR(( "tt_face_build_cmaps:" + " unsupported `cmap' table format = %d\n", + TT_PEEK_USHORT( p ) )); + return SFNT_Err_Invalid_Table; + } + + num_cmaps = TT_NEXT_USHORT( p ); +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( num_cmaps > FT_MAX_CHARMAP_CACHEABLE ) + FT_ERROR(( "tt_face_build_cmaps: too many cmap subtables(%d) " + "subtable#%d and later are loaded but cannot be searched\n", + num_cmaps, FT_MAX_CHARMAP_CACHEABLE + 1 )); +#endif + + for ( ; num_cmaps > 0 && p + 8 <= limit; num_cmaps-- ) + { + FT_CharMapRec charmap; + FT_UInt32 offset; + + + charmap.platform_id = TT_NEXT_USHORT( p ); + charmap.encoding_id = TT_NEXT_USHORT( p ); + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_NONE; /* will be filled later */ + offset = TT_NEXT_ULONG( p ); + + if ( offset && offset <= face->cmap_size - 2 ) + { + FT_Byte* volatile cmap = table + offset; + volatile FT_UInt format = TT_PEEK_USHORT( cmap ); + const TT_CMap_Class* volatile pclazz = FT_TT_CMAP_CLASSES_GET; + TT_CMap_Class volatile clazz; + + + for ( ; *pclazz; pclazz++ ) + { + clazz = *pclazz; + if ( clazz->format == format ) + { + volatile TT_ValidatorRec valid; + volatile FT_Error error = SFNT_Err_Ok; + + + ft_validator_init( FT_VALIDATOR( &valid ), cmap, limit, + FT_VALIDATE_DEFAULT ); + + valid.num_glyphs = (FT_UInt)face->max_profile.numGlyphs; + + if ( ft_setjmp( + *((ft_jmp_buf*)&FT_VALIDATOR( &valid )->jump_buffer) ) == 0 ) + { + /* validate this cmap sub-table */ + error = clazz->validate( cmap, FT_VALIDATOR( &valid ) ); + } + + if ( valid.validator.error == 0 ) + { + FT_CMap ttcmap; + + + /* It might make sense to store the single variation selector */ + /* cmap somewhere special. But it would have to be in the */ + /* public FT_FaceRec, and we can't change that. */ + + if ( !FT_CMap_New( (FT_CMap_Class)clazz, + cmap, &charmap, &ttcmap ) ) + { + /* it is simpler to directly set `flags' than adding */ + /* a parameter to FT_CMap_New */ + ((TT_CMap)ttcmap)->flags = (FT_Int)error; + } + } + else + { + FT_TRACE0(( "tt_face_build_cmaps:" + " broken cmap sub-table ignored\n" )); + } + break; + } + } + + if ( *pclazz == NULL ) + { + FT_TRACE0(( "tt_face_build_cmaps:" + " unsupported cmap sub-table ignored\n" )); + } + } + } + + return SFNT_Err_Ok; + } + + + FT_LOCAL( FT_Error ) + tt_get_cmap_info( FT_CharMap charmap, + TT_CMapInfo *cmap_info ) + { + FT_CMap cmap = (FT_CMap)charmap; + TT_CMap_Class clazz = (TT_CMap_Class)cmap->clazz; + + + return clazz->get_cmap_info( charmap, cmap_info ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.h new file mode 100644 index 000000000..0cbc05779 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmap.h @@ -0,0 +1,125 @@ +/***************************************************************************/ +/* */ +/* ttcmap.h */ +/* */ +/* TrueType character mapping table (cmap) support (specification). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTCMAP_H__ +#define __TTCMAP_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_INTERNAL_VALIDATE_H +#include FT_SERVICE_TT_CMAP_H + +FT_BEGIN_HEADER + + +#define TT_CMAP_FLAG_UNSORTED 1 +#define TT_CMAP_FLAG_OVERLAPPING 2 + + typedef struct TT_CMapRec_ + { + FT_CMapRec cmap; + FT_Byte* data; /* pointer to in-memory cmap table */ + FT_Int flags; /* for format 4 only */ + + } TT_CMapRec, *TT_CMap; + + typedef const struct TT_CMap_ClassRec_* TT_CMap_Class; + + + typedef FT_Error + (*TT_CMap_ValidateFunc)( FT_Byte* data, + FT_Validator valid ); + + typedef struct TT_CMap_ClassRec_ + { + FT_CMap_ClassRec clazz; + FT_UInt format; + TT_CMap_ValidateFunc validate; + TT_CMap_Info_GetFunc get_cmap_info; + + } TT_CMap_ClassRec; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_,variantchar_list_, \ + format_, validate_, get_cmap_info_) \ + FT_CALLBACK_TABLE_DEF \ + const TT_CMap_ClassRec class_ = \ + { \ + {size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_}, \ + format_, validate_, get_cmap_info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_,variantchar_list_, \ + format_, validate_, get_cmap_info_) \ + void \ + FT_Init_Class_##class_( TT_CMap_ClassRec* clazz ) \ + { \ + clazz->clazz.size = size_; \ + clazz->clazz.init = init_; \ + clazz->clazz.done = done_; \ + clazz->clazz.char_index = char_index_; \ + clazz->clazz.char_next = char_next_; \ + clazz->clazz.char_var_index = char_var_index_; \ + clazz->clazz.char_var_default = char_var_default_; \ + clazz->clazz.variant_list = variant_list_; \ + clazz->clazz.charvariant_list = charvariant_list_; \ + clazz->clazz.variantchar_list = variantchar_list_; \ + clazz->format = format_; \ + clazz->validate = validate_; \ + clazz->get_cmap_info = get_cmap_info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + typedef struct TT_ValidatorRec_ + { + FT_ValidatorRec validator; + FT_UInt num_glyphs; + + } TT_ValidatorRec, *TT_Validator; + + +#define TT_VALIDATOR( x ) ((TT_Validator)( x )) +#define TT_VALID_GLYPH_COUNT( x ) TT_VALIDATOR( x )->num_glyphs + + + FT_LOCAL( FT_Error ) + tt_face_build_cmaps( TT_Face face ); + + /* used in tt-cmaps service */ + FT_LOCAL( FT_Error ) + tt_get_cmap_info( FT_CharMap charmap, + TT_CMapInfo *cmap_info ); + + +FT_END_HEADER + +#endif /* __TTCMAP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmapc.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmapc.h new file mode 100644 index 000000000..4c9c6a56f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttcmapc.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* ttcmapc.h */ +/* */ +/* TT CMAP classes definitions (specification only). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifdef TT_CONFIG_CMAP_FORMAT_0 + TTCMAPCITEM(tt_cmap0_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_2 + TTCMAPCITEM(tt_cmap2_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_4 + TTCMAPCITEM(tt_cmap4_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_6 + TTCMAPCITEM(tt_cmap6_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_8 + TTCMAPCITEM(tt_cmap8_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_10 + TTCMAPCITEM(tt_cmap10_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_12 + TTCMAPCITEM(tt_cmap12_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_13 + TTCMAPCITEM(tt_cmap13_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_14 + TTCMAPCITEM(tt_cmap14_class_rec) +#endif + + /* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.c new file mode 100644 index 000000000..12cc66f32 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.c @@ -0,0 +1,306 @@ +/***************************************************************************/ +/* */ +/* ttkern.c */ +/* */ +/* Load the basic TrueType kerning table. This doesn't handle */ +/* kerning data within the GPOS table at the moment. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttkern.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttkern + + +#undef TT_KERN_INDEX +#define TT_KERN_INDEX( g1, g2 ) ( ( (FT_ULong)(g1) << 16 ) | (g2) ) + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_kern( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_ULong table_size; + FT_Byte* p; + FT_Byte* p_limit; + FT_UInt nn, num_tables; + FT_UInt32 avail = 0, ordered = 0; + + + /* the kern table is optional; exit silently if it is missing */ + error = face->goto_table( face, TTAG_kern, stream, &table_size ); + if ( error ) + goto Exit; + + if ( table_size < 4 ) /* the case of a malformed table */ + { + FT_ERROR(( "tt_face_load_kern:" + " kerning table is too small - ignored\n" )); + error = SFNT_Err_Table_Missing; + goto Exit; + } + + if ( FT_FRAME_EXTRACT( table_size, face->kern_table ) ) + { + FT_ERROR(( "tt_face_load_kern:" + " could not extract kerning table\n" )); + goto Exit; + } + + face->kern_table_size = table_size; + + p = face->kern_table; + p_limit = p + table_size; + + p += 2; /* skip version */ + num_tables = FT_NEXT_USHORT( p ); + + if ( num_tables > 32 ) /* we only support up to 32 sub-tables */ + num_tables = 32; + + for ( nn = 0; nn < num_tables; nn++ ) + { + FT_UInt num_pairs, length, coverage; + FT_Byte* p_next; + FT_UInt32 mask = (FT_UInt32)1UL << nn; + + + if ( p + 6 > p_limit ) + break; + + p_next = p; + + p += 2; /* skip version */ + length = FT_NEXT_USHORT( p ); + coverage = FT_NEXT_USHORT( p ); + + if ( length <= 6 ) + break; + + p_next += length; + + if ( p_next > p_limit ) /* handle broken table */ + p_next = p_limit; + + /* only use horizontal kerning tables */ + if ( ( coverage & ~8 ) != 0x0001 || + p + 8 > p_limit ) + goto NextTable; + + num_pairs = FT_NEXT_USHORT( p ); + p += 6; + + if ( ( p_next - p ) < 6 * (int)num_pairs ) /* handle broken count */ + num_pairs = (FT_UInt)( ( p_next - p ) / 6 ); + + avail |= mask; + + /* + * Now check whether the pairs in this table are ordered. + * We then can use binary search. + */ + if ( num_pairs > 0 ) + { + FT_ULong count; + FT_ULong old_pair; + + + old_pair = FT_NEXT_ULONG( p ); + p += 2; + + for ( count = num_pairs - 1; count > 0; count-- ) + { + FT_UInt32 cur_pair; + + + cur_pair = FT_NEXT_ULONG( p ); + if ( cur_pair <= old_pair ) + break; + + p += 2; + old_pair = cur_pair; + } + + if ( count == 0 ) + ordered |= mask; + } + + NextTable: + p = p_next; + } + + face->num_kern_tables = nn; + face->kern_avail_bits = avail; + face->kern_order_bits = ordered; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + tt_face_done_kern( TT_Face face ) + { + FT_Stream stream = face->root.stream; + + + FT_FRAME_RELEASE( face->kern_table ); + face->kern_table_size = 0; + face->num_kern_tables = 0; + face->kern_avail_bits = 0; + face->kern_order_bits = 0; + } + + + FT_LOCAL_DEF( FT_Int ) + tt_face_get_kerning( TT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph ) + { + FT_Int result = 0; + FT_UInt count, mask = 1; + FT_Byte* p = face->kern_table; + FT_Byte* p_limit = p + face->kern_table_size; + + + p += 4; + mask = 0x0001; + + for ( count = face->num_kern_tables; + count > 0 && p + 6 <= p_limit; + count--, mask <<= 1 ) + { + FT_Byte* base = p; + FT_Byte* next = base; + FT_UInt version = FT_NEXT_USHORT( p ); + FT_UInt length = FT_NEXT_USHORT( p ); + FT_UInt coverage = FT_NEXT_USHORT( p ); + FT_UInt num_pairs; + FT_Int value = 0; + + FT_UNUSED( version ); + + + next = base + length; + + if ( next > p_limit ) /* handle broken table */ + next = p_limit; + + if ( ( face->kern_avail_bits & mask ) == 0 ) + goto NextTable; + + if ( p + 8 > next ) + goto NextTable; + + num_pairs = FT_NEXT_USHORT( p ); + p += 6; + + if ( ( next - p ) < 6 * (int)num_pairs ) /* handle broken count */ + num_pairs = (FT_UInt)( ( next - p ) / 6 ); + + switch ( coverage >> 8 ) + { + case 0: + { + FT_ULong key0 = TT_KERN_INDEX( left_glyph, right_glyph ); + + + if ( face->kern_order_bits & mask ) /* binary search */ + { + FT_UInt min = 0; + FT_UInt max = num_pairs; + + + while ( min < max ) + { + FT_UInt mid = ( min + max ) >> 1; + FT_Byte* q = p + 6 * mid; + FT_ULong key; + + + key = FT_NEXT_ULONG( q ); + + if ( key == key0 ) + { + value = FT_PEEK_SHORT( q ); + goto Found; + } + if ( key < key0 ) + min = mid + 1; + else + max = mid; + } + } + else /* linear search */ + { + FT_UInt count2; + + + for ( count2 = num_pairs; count2 > 0; count2-- ) + { + FT_ULong key = FT_NEXT_ULONG( p ); + + + if ( key == key0 ) + { + value = FT_PEEK_SHORT( p ); + goto Found; + } + p += 2; + } + } + } + break; + + /* + * We don't support format 2 because we haven't seen a single font + * using it in real life... + */ + + default: + ; + } + + goto NextTable; + + Found: + if ( coverage & 8 ) /* override or add */ + result = value; + else + result += value; + + NextTable: + p = next; + } + + return result; + } + +#undef TT_KERN_INDEX + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.h new file mode 100644 index 000000000..226a90435 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttkern.h @@ -0,0 +1,52 @@ +/***************************************************************************/ +/* */ +/* ttkern.h */ +/* */ +/* Load the basic TrueType kerning table. This doesn't handle */ +/* kerning data within the GPOS table at the moment. */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTKERN_H__ +#define __TTKERN_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_kern( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + tt_face_done_kern( TT_Face face ); + + FT_LOCAL( FT_Int ) + tt_face_get_kerning( TT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph ); + +#define TT_FACE_HAS_KERNING( face ) ( (face)->kern_avail_bits != 0 ) + + +FT_END_HEADER + +#endif /* __TTKERN_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttload.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttload.c new file mode 100644 index 000000000..4da166fe1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttload.c @@ -0,0 +1,1267 @@ +/***************************************************************************/ +/* */ +/* ttload.c */ +/* */ +/* Load the basic TrueType tables, i.e., tables that can be either in */ +/* TTF or OTF fonts (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttload.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttload + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_lookup_table */ + /* */ + /* <Description> */ + /* Looks for a TrueType table by name. */ + /* */ + /* <Input> */ + /* face :: A face object handle. */ + /* */ + /* tag :: The searched tag. */ + /* */ + /* <Return> */ + /* A pointer to the table directory entry. 0 if not found. */ + /* */ + FT_LOCAL_DEF( TT_Table ) + tt_face_lookup_table( TT_Face face, + FT_ULong tag ) + { + TT_Table entry; + TT_Table limit; +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Bool zero_length = FALSE; +#endif + + + FT_TRACE4(( "tt_face_lookup_table: %08p, `%c%c%c%c' -- ", + face, + (FT_Char)( tag >> 24 ), + (FT_Char)( tag >> 16 ), + (FT_Char)( tag >> 8 ), + (FT_Char)( tag ) )); + + entry = face->dir_tables; + limit = entry + face->num_tables; + + for ( ; entry < limit; entry++ ) + { + /* For compatibility with Windows, we consider */ + /* zero-length tables the same as missing tables. */ + if ( entry->Tag == tag ) + { + if ( entry->Length != 0 ) + { + FT_TRACE4(( "found table.\n" )); + return entry; + } +#ifdef FT_DEBUG_LEVEL_TRACE + zero_length = TRUE; +#endif + } + } + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( zero_length ) + FT_TRACE4(( "ignoring empty table\n" )); + else + FT_TRACE4(( "could not find table\n" )); +#endif + + return NULL; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_goto_table */ + /* */ + /* <Description> */ + /* Looks for a TrueType table by name, then seek a stream to it. */ + /* */ + /* <Input> */ + /* face :: A face object handle. */ + /* */ + /* tag :: The searched tag. */ + /* */ + /* stream :: The stream to seek when the table is found. */ + /* */ + /* <Output> */ + /* length :: The length of the table if found, undefined otherwise. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_goto_table( TT_Face face, + FT_ULong tag, + FT_Stream stream, + FT_ULong* length ) + { + TT_Table table; + FT_Error error; + + + table = tt_face_lookup_table( face, tag ); + if ( table ) + { + if ( length ) + *length = table->Length; + + if ( FT_STREAM_SEEK( table->Offset ) ) + goto Exit; + } + else + error = SFNT_Err_Table_Missing; + + Exit: + return error; + } + + + /* Here, we */ + /* */ + /* - check that `num_tables' is valid (and adjust it if necessary) */ + /* */ + /* - look for a `head' table, check its size, and parse it to check */ + /* whether its `magic' field is correctly set */ + /* */ + /* - errors (except errors returned by stream handling) */ + /* */ + /* SFNT_Err_Unknown_File_Format: */ + /* no table is defined in directory, it is not sfnt-wrapped */ + /* data */ + /* SFNT_Err_Table_Missing: */ + /* table directory is valid, but essential tables */ + /* (head/bhed/SING) are missing */ + /* */ + static FT_Error + check_table_dir( SFNT_Header sfnt, + FT_Stream stream ) + { + FT_Error error; + FT_UShort nn, valid_entries = 0; + FT_UInt has_head = 0, has_sing = 0, has_meta = 0; + FT_ULong offset = sfnt->offset + 12; + + static const FT_Frame_Field table_dir_entry_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_TableRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG( Tag ), + FT_FRAME_ULONG( CheckSum ), + FT_FRAME_ULONG( Offset ), + FT_FRAME_ULONG( Length ), + FT_FRAME_END + }; + + + if ( FT_STREAM_SEEK( offset ) ) + goto Exit; + + for ( nn = 0; nn < sfnt->num_tables; nn++ ) + { + TT_TableRec table; + + + if ( FT_STREAM_READ_FIELDS( table_dir_entry_fields, &table ) ) + { + nn--; + FT_TRACE2(( "check_table_dir:" + " can read only %d table%s in font (instead of %d)\n", + nn, nn == 1 ? "" : "s", sfnt->num_tables )); + sfnt->num_tables = nn; + break; + } + + /* we ignore invalid tables */ + if ( table.Offset + table.Length > stream->size ) + { + FT_TRACE2(( "check_table_dir: table entry %d invalid\n", nn )); + continue; + } + else + valid_entries++; + + if ( table.Tag == TTAG_head || table.Tag == TTAG_bhed ) + { + FT_UInt32 magic; + + +#ifndef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + if ( table.Tag == TTAG_head ) +#endif + has_head = 1; + + /* + * The table length should be 0x36, but certain font tools make it + * 0x38, so we will just check that it is greater. + * + * Note that according to the specification, the table must be + * padded to 32-bit lengths, but this doesn't apply to the value of + * its `Length' field! + * + */ + if ( table.Length < 0x36 ) + { + FT_TRACE2(( "check_table_dir: `head' table too small\n" )); + error = SFNT_Err_Table_Missing; + goto Exit; + } + + if ( FT_STREAM_SEEK( table.Offset + 12 ) || + FT_READ_ULONG( magic ) ) + goto Exit; + + if ( magic != 0x5F0F3CF5UL ) + { + FT_TRACE2(( "check_table_dir:" + " no magic number found in `head' table\n")); + error = SFNT_Err_Table_Missing; + goto Exit; + } + + if ( FT_STREAM_SEEK( offset + ( nn + 1 ) * 16 ) ) + goto Exit; + } + else if ( table.Tag == TTAG_SING ) + has_sing = 1; + else if ( table.Tag == TTAG_META ) + has_meta = 1; + } + + sfnt->num_tables = valid_entries; + + if ( sfnt->num_tables == 0 ) + { + FT_TRACE2(( "check_table_dir: no tables found\n" )); + error = SFNT_Err_Unknown_File_Format; + goto Exit; + } + + /* if `sing' and `meta' tables are present, there is no `head' table */ + if ( has_head || ( has_sing && has_meta ) ) + { + error = SFNT_Err_Ok; + goto Exit; + } + else + { + FT_TRACE2(( "check_table_dir:" )); +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + FT_TRACE2(( " neither `head', `bhed', nor `sing' table found\n" )); +#else + FT_TRACE2(( " neither `head' nor `sing' table found\n" )); +#endif + error = SFNT_Err_Table_Missing; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_font_dir */ + /* */ + /* <Description> */ + /* Loads the header of a SFNT font file. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Output> */ + /* sfnt :: The SFNT header. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the beginning of the font directory. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_font_dir( TT_Face face, + FT_Stream stream ) + { + SFNT_HeaderRec sfnt; + FT_Error error; + FT_Memory memory = stream->memory; + TT_TableRec* entry; + FT_Int nn; + + static const FT_Frame_Field offset_table_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE SFNT_HeaderRec + + FT_FRAME_START( 8 ), + FT_FRAME_USHORT( num_tables ), + FT_FRAME_USHORT( search_range ), + FT_FRAME_USHORT( entry_selector ), + FT_FRAME_USHORT( range_shift ), + FT_FRAME_END + }; + + + FT_TRACE2(( "tt_face_load_font_dir: %08p\n", face )); + + /* read the offset table */ + + sfnt.offset = FT_STREAM_POS(); + + if ( FT_READ_ULONG( sfnt.format_tag ) || + FT_STREAM_READ_FIELDS( offset_table_fields, &sfnt ) ) + goto Exit; + + /* many fonts don't have these fields set correctly */ +#if 0 + if ( sfnt.search_range != 1 << ( sfnt.entry_selector + 4 ) || + sfnt.search_range + sfnt.range_shift != sfnt.num_tables << 4 ) + return SFNT_Err_Unknown_File_Format; +#endif + + /* load the table directory */ + + FT_TRACE2(( "-- Number of tables: %10u\n", sfnt.num_tables )); + FT_TRACE2(( "-- Format version: 0x%08lx\n", sfnt.format_tag )); + + /* check first */ + error = check_table_dir( &sfnt, stream ); + if ( error ) + { + FT_TRACE2(( "tt_face_load_font_dir:" + " invalid table directory for TrueType\n" )); + + goto Exit; + } + + face->num_tables = sfnt.num_tables; + face->format_tag = sfnt.format_tag; + + if ( FT_QNEW_ARRAY( face->dir_tables, face->num_tables ) ) + goto Exit; + + if ( FT_STREAM_SEEK( sfnt.offset + 12 ) || + FT_FRAME_ENTER( face->num_tables * 16L ) ) + goto Exit; + + entry = face->dir_tables; + + FT_TRACE2(( "\n" + " tag offset length checksum\n" + " ----------------------------------\n" )); + + for ( nn = 0; nn < sfnt.num_tables; nn++ ) + { + entry->Tag = FT_GET_TAG4(); + entry->CheckSum = FT_GET_ULONG(); + entry->Offset = FT_GET_LONG(); + entry->Length = FT_GET_LONG(); + + /* ignore invalid tables */ + if ( entry->Offset + entry->Length > stream->size ) + continue; + else + { + FT_TRACE2(( " %c%c%c%c %08lx %08lx %08lx\n", + (FT_Char)( entry->Tag >> 24 ), + (FT_Char)( entry->Tag >> 16 ), + (FT_Char)( entry->Tag >> 8 ), + (FT_Char)( entry->Tag ), + entry->Offset, + entry->Length, + entry->CheckSum )); + entry++; + } + } + + FT_FRAME_EXIT(); + + FT_TRACE2(( "table directory loaded\n\n" )); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_any */ + /* */ + /* <Description> */ + /* Loads any font table into client memory. */ + /* */ + /* <Input> */ + /* face :: The face object to look for. */ + /* */ + /* tag :: The tag of table to load. Use the value 0 if you want */ + /* to access the whole font file, else set this parameter */ + /* to a valid TrueType table tag that you can forge with */ + /* the MAKE_TT_TAG macro. */ + /* */ + /* offset :: The starting offset in the table (or the file if */ + /* tag == 0). */ + /* */ + /* length :: The address of the decision variable: */ + /* */ + /* If length == NULL: */ + /* Loads the whole table. Returns an error if */ + /* `offset' == 0! */ + /* */ + /* If *length == 0: */ + /* Exits immediately; returning the length of the given */ + /* table or of the font file, depending on the value of */ + /* `tag'. */ + /* */ + /* If *length != 0: */ + /* Loads the next `length' bytes of table or font, */ + /* starting at offset `offset' (in table or font too). */ + /* */ + /* <Output> */ + /* buffer :: The address of target buffer. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_any( TT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ) + { + FT_Error error; + FT_Stream stream; + TT_Table table; + FT_ULong size; + + + if ( tag != 0 ) + { + /* look for tag in font directory */ + table = tt_face_lookup_table( face, tag ); + if ( !table ) + { + error = SFNT_Err_Table_Missing; + goto Exit; + } + + offset += table->Offset; + size = table->Length; + } + else + /* tag == 0 -- the user wants to access the font file directly */ + size = face->root.stream->size; + + if ( length && *length == 0 ) + { + *length = size; + + return SFNT_Err_Ok; + } + + if ( length ) + size = *length; + + stream = face->root.stream; + /* the `if' is syntactic sugar for picky compilers */ + if ( FT_STREAM_READ_AT( offset, buffer, size ) ) + goto Exit; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_generic_header */ + /* */ + /* <Description> */ + /* Loads the TrueType table `head' or `bhed'. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + tt_face_load_generic_header( TT_Face face, + FT_Stream stream, + FT_ULong tag ) + { + FT_Error error; + TT_Header* header; + + static const FT_Frame_Field header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_Header + + FT_FRAME_START( 54 ), + FT_FRAME_ULONG ( Table_Version ), + FT_FRAME_ULONG ( Font_Revision ), + FT_FRAME_LONG ( CheckSum_Adjust ), + FT_FRAME_LONG ( Magic_Number ), + FT_FRAME_USHORT( Flags ), + FT_FRAME_USHORT( Units_Per_EM ), + FT_FRAME_LONG ( Created[0] ), + FT_FRAME_LONG ( Created[1] ), + FT_FRAME_LONG ( Modified[0] ), + FT_FRAME_LONG ( Modified[1] ), + FT_FRAME_SHORT ( xMin ), + FT_FRAME_SHORT ( yMin ), + FT_FRAME_SHORT ( xMax ), + FT_FRAME_SHORT ( yMax ), + FT_FRAME_USHORT( Mac_Style ), + FT_FRAME_USHORT( Lowest_Rec_PPEM ), + FT_FRAME_SHORT ( Font_Direction ), + FT_FRAME_SHORT ( Index_To_Loc_Format ), + FT_FRAME_SHORT ( Glyph_Data_Format ), + FT_FRAME_END + }; + + + error = face->goto_table( face, tag, stream, 0 ); + if ( error ) + goto Exit; + + header = &face->header; + + if ( FT_STREAM_READ_FIELDS( header_fields, header ) ) + goto Exit; + + FT_TRACE3(( "Units per EM: %4u\n", header->Units_Per_EM )); + FT_TRACE3(( "IndexToLoc: %4d\n", header->Index_To_Loc_Format )); + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_head( TT_Face face, + FT_Stream stream ) + { + return tt_face_load_generic_header( face, stream, TTAG_head ); + } + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_bhed( TT_Face face, + FT_Stream stream ) + { + return tt_face_load_generic_header( face, stream, TTAG_bhed ); + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_max_profile */ + /* */ + /* <Description> */ + /* Loads the maximum profile into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_maxp( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + TT_MaxProfile* maxProfile = &face->max_profile; + + const FT_Frame_Field maxp_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_MaxProfile + + FT_FRAME_START( 6 ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT( numGlyphs ), + FT_FRAME_END + }; + + const FT_Frame_Field maxp_fields_extra[] = + { + FT_FRAME_START( 26 ), + FT_FRAME_USHORT( maxPoints ), + FT_FRAME_USHORT( maxContours ), + FT_FRAME_USHORT( maxCompositePoints ), + FT_FRAME_USHORT( maxCompositeContours ), + FT_FRAME_USHORT( maxZones ), + FT_FRAME_USHORT( maxTwilightPoints ), + FT_FRAME_USHORT( maxStorage ), + FT_FRAME_USHORT( maxFunctionDefs ), + FT_FRAME_USHORT( maxInstructionDefs ), + FT_FRAME_USHORT( maxStackElements ), + FT_FRAME_USHORT( maxSizeOfInstructions ), + FT_FRAME_USHORT( maxComponentElements ), + FT_FRAME_USHORT( maxComponentDepth ), + FT_FRAME_END + }; + + + error = face->goto_table( face, TTAG_maxp, stream, 0 ); + if ( error ) + goto Exit; + + if ( FT_STREAM_READ_FIELDS( maxp_fields, maxProfile ) ) + goto Exit; + + maxProfile->maxPoints = 0; + maxProfile->maxContours = 0; + maxProfile->maxCompositePoints = 0; + maxProfile->maxCompositeContours = 0; + maxProfile->maxZones = 0; + maxProfile->maxTwilightPoints = 0; + maxProfile->maxStorage = 0; + maxProfile->maxFunctionDefs = 0; + maxProfile->maxInstructionDefs = 0; + maxProfile->maxStackElements = 0; + maxProfile->maxSizeOfInstructions = 0; + maxProfile->maxComponentElements = 0; + maxProfile->maxComponentDepth = 0; + + if ( maxProfile->version >= 0x10000L ) + { + if ( FT_STREAM_READ_FIELDS( maxp_fields_extra, maxProfile ) ) + goto Exit; + + /* XXX: an adjustment that is necessary to load certain */ + /* broken fonts like `Keystrokes MT' :-( */ + /* */ + /* We allocate 64 function entries by default when */ + /* the maxFunctionDefs value is smaller. */ + + if ( maxProfile->maxFunctionDefs < 64 ) + maxProfile->maxFunctionDefs = 64; + + /* we add 4 phantom points later */ + if ( maxProfile->maxTwilightPoints > ( 0xFFFFU - 4 ) ) + { + FT_TRACE0(( "tt_face_load_maxp:" + " too much twilight points in `maxp' table;\n" + " " + " some glyphs might be rendered incorrectly\n" )); + + maxProfile->maxTwilightPoints = 0xFFFFU - 4; + } + + /* we arbitrarily limit recursion to avoid stack exhaustion */ + if ( maxProfile->maxComponentDepth > 100 ) + { + FT_TRACE0(( "tt_face_load_maxp:" + " abnormally large component depth (%d) set to 100\n", + maxProfile->maxComponentDepth )); + maxProfile->maxComponentDepth = 100; + } + } + + FT_TRACE3(( "numGlyphs: %u\n", maxProfile->numGlyphs )); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_names */ + /* */ + /* <Description> */ + /* Loads the name records. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_name( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong table_pos, table_len; + FT_ULong storage_start, storage_limit; + FT_UInt count; + TT_NameTable table; + + static const FT_Frame_Field name_table_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_NameTableRec + + FT_FRAME_START( 6 ), + FT_FRAME_USHORT( format ), + FT_FRAME_USHORT( numNameRecords ), + FT_FRAME_USHORT( storageOffset ), + FT_FRAME_END + }; + + static const FT_Frame_Field name_record_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_NameEntryRec + + /* no FT_FRAME_START */ + FT_FRAME_USHORT( platformID ), + FT_FRAME_USHORT( encodingID ), + FT_FRAME_USHORT( languageID ), + FT_FRAME_USHORT( nameID ), + FT_FRAME_USHORT( stringLength ), + FT_FRAME_USHORT( stringOffset ), + FT_FRAME_END + }; + + + table = &face->name_table; + table->stream = stream; + + error = face->goto_table( face, TTAG_name, stream, &table_len ); + if ( error ) + goto Exit; + + table_pos = FT_STREAM_POS(); + + + if ( FT_STREAM_READ_FIELDS( name_table_fields, table ) ) + goto Exit; + + /* Some popular Asian fonts have an invalid `storageOffset' value */ + /* (it should be at least "6 + 12*num_names"). However, the string */ + /* offsets, computed as "storageOffset + entry->stringOffset", are */ + /* valid pointers within the name table... */ + /* */ + /* We thus can't check `storageOffset' right now. */ + /* */ + storage_start = table_pos + 6 + 12*table->numNameRecords; + storage_limit = table_pos + table_len; + + if ( storage_start > storage_limit ) + { + FT_ERROR(( "tt_face_load_name: invalid `name' table\n" )); + error = SFNT_Err_Name_Table_Missing; + goto Exit; + } + + /* Allocate the array of name records. */ + count = table->numNameRecords; + table->numNameRecords = 0; + + if ( FT_NEW_ARRAY( table->names, count ) || + FT_FRAME_ENTER( count * 12 ) ) + goto Exit; + + /* Load the name records and determine how much storage is needed */ + /* to hold the strings themselves. */ + { + TT_NameEntryRec* entry = table->names; + + + for ( ; count > 0; count-- ) + { + if ( FT_STREAM_READ_FIELDS( name_record_fields, entry ) ) + continue; + + /* check that the name is not empty */ + if ( entry->stringLength == 0 ) + continue; + + /* check that the name string is within the table */ + entry->stringOffset += table_pos + table->storageOffset; + if ( entry->stringOffset < storage_start || + entry->stringOffset + entry->stringLength > storage_limit ) + { + /* invalid entry - ignore it */ + entry->stringOffset = 0; + entry->stringLength = 0; + continue; + } + + entry++; + } + + table->numNameRecords = (FT_UInt)( entry - table->names ); + } + + FT_FRAME_EXIT(); + + /* everything went well, update face->num_names */ + face->num_names = (FT_UShort) table->numNameRecords; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_free_names */ + /* */ + /* <Description> */ + /* Frees the name records. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + FT_LOCAL_DEF( void ) + tt_face_free_name( TT_Face face ) + { + FT_Memory memory = face->root.driver->root.memory; + TT_NameTable table = &face->name_table; + TT_NameEntry entry = table->names; + FT_UInt count = table->numNameRecords; + + + if ( table->names ) + { + for ( ; count > 0; count--, entry++ ) + { + FT_FREE( entry->string ); + entry->stringLength = 0; + } + + /* free strings table */ + FT_FREE( table->names ); + } + + table->numNameRecords = 0; + table->format = 0; + table->storageOffset = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_cmap */ + /* */ + /* <Description> */ + /* Loads the cmap directory in a face object. The cmaps themselves */ + /* are loaded on demand in the `ttcmap.c' module. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_cmap( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + + + error = face->goto_table( face, TTAG_cmap, stream, &face->cmap_size ); + if ( error ) + goto Exit; + + if ( FT_FRAME_EXTRACT( face->cmap_size, face->cmap_table ) ) + face->cmap_size = 0; + + Exit: + return error; + } + + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_os2 */ + /* */ + /* <Description> */ + /* Loads the OS2 table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_os2( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + TT_OS2* os2; + + const FT_Frame_Field os2_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_OS2 + + FT_FRAME_START( 78 ), + FT_FRAME_USHORT( version ), + FT_FRAME_SHORT ( xAvgCharWidth ), + FT_FRAME_USHORT( usWeightClass ), + FT_FRAME_USHORT( usWidthClass ), + FT_FRAME_SHORT ( fsType ), + FT_FRAME_SHORT ( ySubscriptXSize ), + FT_FRAME_SHORT ( ySubscriptYSize ), + FT_FRAME_SHORT ( ySubscriptXOffset ), + FT_FRAME_SHORT ( ySubscriptYOffset ), + FT_FRAME_SHORT ( ySuperscriptXSize ), + FT_FRAME_SHORT ( ySuperscriptYSize ), + FT_FRAME_SHORT ( ySuperscriptXOffset ), + FT_FRAME_SHORT ( ySuperscriptYOffset ), + FT_FRAME_SHORT ( yStrikeoutSize ), + FT_FRAME_SHORT ( yStrikeoutPosition ), + FT_FRAME_SHORT ( sFamilyClass ), + FT_FRAME_BYTE ( panose[0] ), + FT_FRAME_BYTE ( panose[1] ), + FT_FRAME_BYTE ( panose[2] ), + FT_FRAME_BYTE ( panose[3] ), + FT_FRAME_BYTE ( panose[4] ), + FT_FRAME_BYTE ( panose[5] ), + FT_FRAME_BYTE ( panose[6] ), + FT_FRAME_BYTE ( panose[7] ), + FT_FRAME_BYTE ( panose[8] ), + FT_FRAME_BYTE ( panose[9] ), + FT_FRAME_ULONG ( ulUnicodeRange1 ), + FT_FRAME_ULONG ( ulUnicodeRange2 ), + FT_FRAME_ULONG ( ulUnicodeRange3 ), + FT_FRAME_ULONG ( ulUnicodeRange4 ), + FT_FRAME_BYTE ( achVendID[0] ), + FT_FRAME_BYTE ( achVendID[1] ), + FT_FRAME_BYTE ( achVendID[2] ), + FT_FRAME_BYTE ( achVendID[3] ), + + FT_FRAME_USHORT( fsSelection ), + FT_FRAME_USHORT( usFirstCharIndex ), + FT_FRAME_USHORT( usLastCharIndex ), + FT_FRAME_SHORT ( sTypoAscender ), + FT_FRAME_SHORT ( sTypoDescender ), + FT_FRAME_SHORT ( sTypoLineGap ), + FT_FRAME_USHORT( usWinAscent ), + FT_FRAME_USHORT( usWinDescent ), + FT_FRAME_END + }; + + const FT_Frame_Field os2_fields_extra[] = + { + FT_FRAME_START( 8 ), + FT_FRAME_ULONG( ulCodePageRange1 ), + FT_FRAME_ULONG( ulCodePageRange2 ), + FT_FRAME_END + }; + + const FT_Frame_Field os2_fields_extra2[] = + { + FT_FRAME_START( 10 ), + FT_FRAME_SHORT ( sxHeight ), + FT_FRAME_SHORT ( sCapHeight ), + FT_FRAME_USHORT( usDefaultChar ), + FT_FRAME_USHORT( usBreakChar ), + FT_FRAME_USHORT( usMaxContext ), + FT_FRAME_END + }; + + + /* We now support old Mac fonts where the OS/2 table doesn't */ + /* exist. Simply put, we set the `version' field to 0xFFFF */ + /* and test this value each time we need to access the table. */ + error = face->goto_table( face, TTAG_OS2, stream, 0 ); + if ( error ) + goto Exit; + + os2 = &face->os2; + + if ( FT_STREAM_READ_FIELDS( os2_fields, os2 ) ) + goto Exit; + + os2->ulCodePageRange1 = 0; + os2->ulCodePageRange2 = 0; + os2->sxHeight = 0; + os2->sCapHeight = 0; + os2->usDefaultChar = 0; + os2->usBreakChar = 0; + os2->usMaxContext = 0; + + if ( os2->version >= 0x0001 ) + { + /* only version 1 tables */ + if ( FT_STREAM_READ_FIELDS( os2_fields_extra, os2 ) ) + goto Exit; + + if ( os2->version >= 0x0002 ) + { + /* only version 2 tables */ + if ( FT_STREAM_READ_FIELDS( os2_fields_extra2, os2 ) ) + goto Exit; + } + } + + FT_TRACE3(( "sTypoAscender: %4d\n", os2->sTypoAscender )); + FT_TRACE3(( "sTypoDescender: %4d\n", os2->sTypoDescender )); + FT_TRACE3(( "usWinAscent: %4u\n", os2->usWinAscent )); + FT_TRACE3(( "usWinDescent: %4u\n", os2->usWinDescent )); + FT_TRACE3(( "fsSelection: 0x%2x\n", os2->fsSelection )); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_postscript */ + /* */ + /* <Description> */ + /* Loads the Postscript table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_post( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + TT_Postscript* post = &face->postscript; + + static const FT_Frame_Field post_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_Postscript + + FT_FRAME_START( 32 ), + FT_FRAME_ULONG( FormatType ), + FT_FRAME_ULONG( italicAngle ), + FT_FRAME_SHORT( underlinePosition ), + FT_FRAME_SHORT( underlineThickness ), + FT_FRAME_ULONG( isFixedPitch ), + FT_FRAME_ULONG( minMemType42 ), + FT_FRAME_ULONG( maxMemType42 ), + FT_FRAME_ULONG( minMemType1 ), + FT_FRAME_ULONG( maxMemType1 ), + FT_FRAME_END + }; + + + error = face->goto_table( face, TTAG_post, stream, 0 ); + if ( error ) + return error; + + if ( FT_STREAM_READ_FIELDS( post_fields, post ) ) + return error; + + /* we don't load the glyph names, we do that in another */ + /* module (ttpost). */ + + FT_TRACE3(( "FormatType: 0x%x\n", post->FormatType )); + FT_TRACE3(( "isFixedPitch: %s\n", post->isFixedPitch + ? " yes" : " no" )); + + return SFNT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_pclt */ + /* */ + /* <Description> */ + /* Loads the PCL 5 Table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_pclt( TT_Face face, + FT_Stream stream ) + { + static const FT_Frame_Field pclt_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_PCLT + + FT_FRAME_START( 54 ), + FT_FRAME_ULONG ( Version ), + FT_FRAME_ULONG ( FontNumber ), + FT_FRAME_USHORT( Pitch ), + FT_FRAME_USHORT( xHeight ), + FT_FRAME_USHORT( Style ), + FT_FRAME_USHORT( TypeFamily ), + FT_FRAME_USHORT( CapHeight ), + FT_FRAME_BYTES ( TypeFace, 16 ), + FT_FRAME_BYTES ( CharacterComplement, 8 ), + FT_FRAME_BYTES ( FileName, 6 ), + FT_FRAME_CHAR ( StrokeWeight ), + FT_FRAME_CHAR ( WidthType ), + FT_FRAME_BYTE ( SerifStyle ), + FT_FRAME_BYTE ( Reserved ), + FT_FRAME_END + }; + + FT_Error error; + TT_PCLT* pclt = &face->pclt; + + + /* optional table */ + error = face->goto_table( face, TTAG_PCLT, stream, 0 ); + if ( error ) + goto Exit; + + if ( FT_STREAM_READ_FIELDS( pclt_fields, pclt ) ) + goto Exit; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_gasp */ + /* */ + /* <Description> */ + /* Loads the `gasp' table into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_gasp( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + + FT_UInt j,num_ranges; + TT_GaspRange gaspranges = NULL; + + + /* the gasp table is optional */ + error = face->goto_table( face, TTAG_gasp, stream, 0 ); + if ( error ) + goto Exit; + + if ( FT_FRAME_ENTER( 4L ) ) + goto Exit; + + face->gasp.version = FT_GET_USHORT(); + face->gasp.numRanges = FT_GET_USHORT(); + + FT_FRAME_EXIT(); + + /* only support versions 0 and 1 of the table */ + if ( face->gasp.version >= 2 ) + { + face->gasp.numRanges = 0; + error = SFNT_Err_Invalid_Table; + goto Exit; + } + + num_ranges = face->gasp.numRanges; + FT_TRACE3(( "numRanges: %u\n", num_ranges )); + + if ( FT_QNEW_ARRAY( gaspranges, num_ranges ) || + FT_FRAME_ENTER( num_ranges * 4L ) ) + goto Exit; + + face->gasp.gaspRanges = gaspranges; + + for ( j = 0; j < num_ranges; j++ ) + { + gaspranges[j].maxPPEM = FT_GET_USHORT(); + gaspranges[j].gaspFlag = FT_GET_USHORT(); + + FT_TRACE3(( "gaspRange %d: rangeMaxPPEM %5d, rangeGaspBehavior 0x%x\n", + j, + gaspranges[j].maxPPEM, + gaspranges[j].gaspFlag )); + } + + FT_FRAME_EXIT(); + + Exit: + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttload.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttload.h new file mode 100644 index 000000000..f7b8d06d9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttload.h @@ -0,0 +1,112 @@ +/***************************************************************************/ +/* */ +/* ttload.h */ +/* */ +/* Load the basic TrueType tables, i.e., tables that can be either in */ +/* TTF or OTF fonts (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTLOAD_H__ +#define __TTLOAD_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( TT_Table ) + tt_face_lookup_table( TT_Face face, + FT_ULong tag ); + + FT_LOCAL( FT_Error ) + tt_face_goto_table( TT_Face face, + FT_ULong tag, + FT_Stream stream, + FT_ULong* length ); + + + FT_LOCAL( FT_Error ) + tt_face_load_font_dir( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_any( TT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ); + + + FT_LOCAL( FT_Error ) + tt_face_load_head( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_cmap( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_maxp( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_name( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_os2( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_post( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_pclt( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + tt_face_free_name( TT_Face face ); + + + FT_LOCAL( FT_Error ) + tt_face_load_gasp( TT_Face face, + FT_Stream stream ); + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL( FT_Error ) + tt_face_load_bhed( TT_Face face, + FT_Stream stream ); + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + +FT_END_HEADER + +#endif /* __TTLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.c new file mode 100644 index 000000000..27950c666 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.c @@ -0,0 +1,468 @@ +/***************************************************************************/ +/* */ +/* ttmtx.c */ +/* */ +/* Load the metrics tables common to TTF and OTF fonts (body). */ +/* */ +/* Copyright 2006-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttmtx.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttmtx + + + /* + * Unfortunately, we can't enable our memory optimizations if + * FT_CONFIG_OPTION_OLD_INTERNALS is defined. This is because at least + * one rogue client (libXfont in the X.Org XServer) is directly accessing + * the metrics. + */ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_hmtx */ + /* */ + /* <Description> */ + /* Load the `hmtx' or `vmtx' table into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load `vmtx'. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hmtx( TT_Face face, + FT_Stream stream, + FT_Bool vertical ) + { + FT_Error error; + FT_ULong tag, table_size; + FT_ULong* ptable_offset; + FT_ULong* ptable_size; + + + if ( vertical ) + { + tag = TTAG_vmtx; + ptable_offset = &face->vert_metrics_offset; + ptable_size = &face->vert_metrics_size; + } + else + { + tag = TTAG_hmtx; + ptable_offset = &face->horz_metrics_offset; + ptable_size = &face->horz_metrics_size; + } + + error = face->goto_table( face, tag, stream, &table_size ); + if ( error ) + goto Fail; + + *ptable_size = table_size; + *ptable_offset = FT_STREAM_POS(); + + Fail: + return error; + } + +#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hmtx( TT_Face face, + FT_Stream stream, + FT_Bool vertical ) + { + FT_Error error; + FT_Memory memory = stream->memory; + + FT_ULong table_len; + FT_Long num_shorts, num_longs, num_shorts_checked; + + TT_LongMetrics* longs; + TT_ShortMetrics** shorts; + FT_Byte* p; + + + if ( vertical ) + { + void* lm = &face->vertical.long_metrics; + void** sm = &face->vertical.short_metrics; + + + error = face->goto_table( face, TTAG_vmtx, stream, &table_len ); + if ( error ) + goto Fail; + + num_longs = face->vertical.number_Of_VMetrics; + if ( (FT_ULong)num_longs > table_len / 4 ) + num_longs = (FT_Long)( table_len / 4 ); + + face->vertical.number_Of_VMetrics = 0; + + longs = (TT_LongMetrics*)lm; + shorts = (TT_ShortMetrics**)sm; + } + else + { + void* lm = &face->horizontal.long_metrics; + void** sm = &face->horizontal.short_metrics; + + + error = face->goto_table( face, TTAG_hmtx, stream, &table_len ); + if ( error ) + goto Fail; + + num_longs = face->horizontal.number_Of_HMetrics; + if ( (FT_ULong)num_longs > table_len / 4 ) + num_longs = (FT_Long)( table_len / 4 ); + + face->horizontal.number_Of_HMetrics = 0; + + longs = (TT_LongMetrics*)lm; + shorts = (TT_ShortMetrics**)sm; + } + + /* never trust derived values */ + + num_shorts = face->max_profile.numGlyphs - num_longs; + num_shorts_checked = ( table_len - num_longs * 4L ) / 2; + + if ( num_shorts < 0 ) + { + FT_TRACE0(( "tt_face_load_hmtx:" + " %cmtx has more metrics than glyphs.\n", + vertical ? 'v' : 'h' )); + + /* Adobe simply ignores this problem. So we shall do the same. */ +#if 0 + error = vertical ? SFNT_Err_Invalid_Vert_Metrics + : SFNT_Err_Invalid_Horiz_Metrics; + goto Exit; +#else + num_shorts = 0; +#endif + } + + if ( FT_QNEW_ARRAY( *longs, num_longs ) || + FT_QNEW_ARRAY( *shorts, num_shorts ) ) + goto Fail; + + if ( FT_FRAME_ENTER( table_len ) ) + goto Fail; + + p = stream->cursor; + + { + TT_LongMetrics cur = *longs; + TT_LongMetrics limit = cur + num_longs; + + + for ( ; cur < limit; cur++ ) + { + cur->advance = FT_NEXT_USHORT( p ); + cur->bearing = FT_NEXT_SHORT( p ); + } + } + + /* do we have an inconsistent number of metric values? */ + { + TT_ShortMetrics* cur = *shorts; + TT_ShortMetrics* limit = cur + + FT_MIN( num_shorts, num_shorts_checked ); + + + for ( ; cur < limit; cur++ ) + *cur = FT_NEXT_SHORT( p ); + + /* We fill up the missing left side bearings with the */ + /* last valid value. Since this will occur for buggy CJK */ + /* fonts usually only, nothing serious will happen. */ + if ( num_shorts > num_shorts_checked && num_shorts_checked > 0 ) + { + FT_Short val = (*shorts)[num_shorts_checked - 1]; + + + limit = *shorts + num_shorts; + for ( ; cur < limit; cur++ ) + *cur = val; + } + } + + FT_FRAME_EXIT(); + + if ( vertical ) + face->vertical.number_Of_VMetrics = (FT_UShort)num_longs; + else + face->horizontal.number_Of_HMetrics = (FT_UShort)num_longs; + + Fail: + return error; + } + +#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_hhea */ + /* */ + /* <Description> */ + /* Load the `hhea' or 'vhea' table into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load `vhea'. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hhea( TT_Face face, + FT_Stream stream, + FT_Bool vertical ) + { + FT_Error error; + TT_HoriHeader* header; + + const FT_Frame_Field metrics_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_HoriHeader + + FT_FRAME_START( 36 ), + FT_FRAME_ULONG ( Version ), + FT_FRAME_SHORT ( Ascender ), + FT_FRAME_SHORT ( Descender ), + FT_FRAME_SHORT ( Line_Gap ), + FT_FRAME_USHORT( advance_Width_Max ), + FT_FRAME_SHORT ( min_Left_Side_Bearing ), + FT_FRAME_SHORT ( min_Right_Side_Bearing ), + FT_FRAME_SHORT ( xMax_Extent ), + FT_FRAME_SHORT ( caret_Slope_Rise ), + FT_FRAME_SHORT ( caret_Slope_Run ), + FT_FRAME_SHORT ( caret_Offset ), + FT_FRAME_SHORT ( Reserved[0] ), + FT_FRAME_SHORT ( Reserved[1] ), + FT_FRAME_SHORT ( Reserved[2] ), + FT_FRAME_SHORT ( Reserved[3] ), + FT_FRAME_SHORT ( metric_Data_Format ), + FT_FRAME_USHORT( number_Of_HMetrics ), + FT_FRAME_END + }; + + + if ( vertical ) + { + void *v = &face->vertical; + + + error = face->goto_table( face, TTAG_vhea, stream, 0 ); + if ( error ) + goto Fail; + + header = (TT_HoriHeader*)v; + } + else + { + error = face->goto_table( face, TTAG_hhea, stream, 0 ); + if ( error ) + goto Fail; + + header = &face->horizontal; + } + + if ( FT_STREAM_READ_FIELDS( metrics_header_fields, header ) ) + goto Fail; + + FT_TRACE3(( "Ascender: %5d\n", header->Ascender )); + FT_TRACE3(( "Descender: %5d\n", header->Descender )); + FT_TRACE3(( "number_Of_Metrics: %5u\n", header->number_Of_HMetrics )); + + header->long_metrics = NULL; + header->short_metrics = NULL; + + Fail: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_get_metrics */ + /* */ + /* <Description> */ + /* Returns the horizontal or vertical metrics in font units for a */ + /* given glyph. The metrics are the left side bearing (resp. top */ + /* side bearing) and advance width (resp. advance height). */ + /* */ + /* <Input> */ + /* header :: A pointer to either the horizontal or vertical metrics */ + /* structure. */ + /* */ + /* idx :: The glyph index. */ + /* */ + /* <Output> */ + /* bearing :: The bearing, either left side or top side. */ + /* */ + /* advance :: The advance width resp. advance height. */ + /* */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_LOCAL_DEF( FT_Error ) + tt_face_get_metrics( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short *abearing, + FT_UShort *aadvance ) + { + FT_Error error; + FT_Stream stream = face->root.stream; + TT_HoriHeader* header; + FT_ULong table_pos, table_size, table_end; + FT_UShort k; + + + if ( vertical ) + { + void* v = &face->vertical; + + + header = (TT_HoriHeader*)v; + table_pos = face->vert_metrics_offset; + table_size = face->vert_metrics_size; + } + else + { + header = &face->horizontal; + table_pos = face->horz_metrics_offset; + table_size = face->horz_metrics_size; + } + + table_end = table_pos + table_size; + + k = header->number_Of_HMetrics; + + if ( k > 0 ) + { + if ( gindex < (FT_UInt)k ) + { + table_pos += 4 * gindex; + if ( table_pos + 4 > table_end ) + goto NoData; + + if ( FT_STREAM_SEEK( table_pos ) || + FT_READ_USHORT( *aadvance ) || + FT_READ_SHORT( *abearing ) ) + goto NoData; + } + else + { + table_pos += 4 * ( k - 1 ); + if ( table_pos + 4 > table_end ) + goto NoData; + + if ( FT_STREAM_SEEK( table_pos ) || + FT_READ_USHORT( *aadvance ) ) + goto NoData; + + table_pos += 4 + 2 * ( gindex - k ); + if ( table_pos + 2 > table_end ) + *abearing = 0; + else + { + if ( !FT_STREAM_SEEK( table_pos ) ) + (void)FT_READ_SHORT( *abearing ); + } + } + } + else + { + NoData: + *abearing = 0; + *aadvance = 0; + } + + return SFNT_Err_Ok; + } + +#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_get_metrics( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short* abearing, + FT_UShort* aadvance ) + { + void* v = &face->vertical; + void* h = &face->horizontal; + TT_HoriHeader* header = vertical ? (TT_HoriHeader*)v + : (TT_HoriHeader*)h; + TT_LongMetrics longs_m; + FT_UShort k = header->number_Of_HMetrics; + + + if ( k == 0 || + !header->long_metrics || + gindex >= (FT_UInt)face->max_profile.numGlyphs ) + { + *abearing = *aadvance = 0; + return SFNT_Err_Ok; + } + + if ( gindex < (FT_UInt)k ) + { + longs_m = (TT_LongMetrics)header->long_metrics + gindex; + *abearing = longs_m->bearing; + *aadvance = longs_m->advance; + } + else + { + *abearing = ((TT_ShortMetrics*)header->short_metrics)[gindex - k]; + *aadvance = ((TT_LongMetrics)header->long_metrics)[k - 1].advance; + } + + return SFNT_Err_Ok; + } + +#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.h new file mode 100644 index 000000000..078325fd4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttmtx.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* ttmtx.h */ +/* */ +/* Load the metrics tables common to TTF and OTF fonts (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTMTX_H__ +#define __TTMTX_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_hhea( TT_Face face, + FT_Stream stream, + FT_Bool vertical ); + + + FT_LOCAL( FT_Error ) + tt_face_load_hmtx( TT_Face face, + FT_Stream stream, + FT_Bool vertical ); + + + FT_LOCAL( FT_Error ) + tt_face_get_metrics( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short* abearing, + FT_UShort* aadvance ); + +FT_END_HEADER + +#endif /* __TTMTX_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.c new file mode 100644 index 000000000..ced80fe6b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.c @@ -0,0 +1,563 @@ +/***************************************************************************/ +/* */ +/* ttpost.c */ +/* */ +/* Postcript name table processing for TrueType and OpenType fonts */ +/* (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* The post table is not completely loaded by the core engine. This */ + /* file loads the missing PS glyph names and implements an API to access */ + /* them. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttpost.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttpost + + + /* If this configuration macro is defined, we rely on the `PSNames' */ + /* module to grab the glyph names. */ + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + +#define MAC_NAME( x ) ( (FT_String*)psnames->macintosh_name( x ) ) + + +#else /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + + /* Otherwise, we ignore the `PSNames' module, and provide our own */ + /* table of Mac names. Thus, it is possible to build a version of */ + /* FreeType without the Type 1 driver & PSNames module. */ + +#define MAC_NAME( x ) ( (FT_String*)tt_post_default_names[x] ) + + /* the 258 default Mac PS glyph names */ + + static const FT_String* const tt_post_default_names[258] = + { + /* 0 */ + ".notdef", ".null", "CR", "space", "exclam", + "quotedbl", "numbersign", "dollar", "percent", "ampersand", + /* 10 */ + "quotesingle", "parenleft", "parenright", "asterisk", "plus", + "comma", "hyphen", "period", "slash", "zero", + /* 20 */ + "one", "two", "three", "four", "five", + "six", "seven", "eight", "nine", "colon", + /* 30 */ + "semicolon", "less", "equal", "greater", "question", + "at", "A", "B", "C", "D", + /* 40 */ + "E", "F", "G", "H", "I", + "J", "K", "L", "M", "N", + /* 50 */ + "O", "P", "Q", "R", "S", + "T", "U", "V", "W", "X", + /* 60 */ + "Y", "Z", "bracketleft", "backslash", "bracketright", + "asciicircum", "underscore", "grave", "a", "b", + /* 70 */ + "c", "d", "e", "f", "g", + "h", "i", "j", "k", "l", + /* 80 */ + "m", "n", "o", "p", "q", + "r", "s", "t", "u", "v", + /* 90 */ + "w", "x", "y", "z", "braceleft", + "bar", "braceright", "asciitilde", "Adieresis", "Aring", + /* 100 */ + "Ccedilla", "Eacute", "Ntilde", "Odieresis", "Udieresis", + "aacute", "agrave", "acircumflex", "adieresis", "atilde", + /* 110 */ + "aring", "ccedilla", "eacute", "egrave", "ecircumflex", + "edieresis", "iacute", "igrave", "icircumflex", "idieresis", + /* 120 */ + "ntilde", "oacute", "ograve", "ocircumflex", "odieresis", + "otilde", "uacute", "ugrave", "ucircumflex", "udieresis", + /* 130 */ + "dagger", "degree", "cent", "sterling", "section", + "bullet", "paragraph", "germandbls", "registered", "copyright", + /* 140 */ + "trademark", "acute", "dieresis", "notequal", "AE", + "Oslash", "infinity", "plusminus", "lessequal", "greaterequal", + /* 150 */ + "yen", "mu", "partialdiff", "summation", "product", + "pi", "integral", "ordfeminine", "ordmasculine", "Omega", + /* 160 */ + "ae", "oslash", "questiondown", "exclamdown", "logicalnot", + "radical", "florin", "approxequal", "Delta", "guillemotleft", + /* 170 */ + "guillemotright", "ellipsis", "nbspace", "Agrave", "Atilde", + "Otilde", "OE", "oe", "endash", "emdash", + /* 180 */ + "quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide", + "lozenge", "ydieresis", "Ydieresis", "fraction", "currency", + /* 190 */ + "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", + "periodcentered", "quotesinglbase", "quotedblbase", "perthousand", "Acircumflex", + /* 200 */ + "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", + "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex", + /* 210 */ + "apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", + "dotlessi", "circumflex", "tilde", "macron", "breve", + /* 220 */ + "dotaccent", "ring", "cedilla", "hungarumlaut", "ogonek", + "caron", "Lslash", "lslash", "Scaron", "scaron", + /* 230 */ + "Zcaron", "zcaron", "brokenbar", "Eth", "eth", + "Yacute", "yacute", "Thorn", "thorn", "minus", + /* 240 */ + "multiply", "onesuperior", "twosuperior", "threesuperior", "onehalf", + "onequarter", "threequarters", "franc", "Gbreve", "gbreve", + /* 250 */ + "Idot", "Scedilla", "scedilla", "Cacute", "cacute", + "Ccaron", "ccaron", "dmacron", + }; + + +#endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + + static FT_Error + load_format_20( TT_Face face, + FT_Stream stream, + FT_Long post_limit ) + { + FT_Memory memory = stream->memory; + FT_Error error; + + FT_Int num_glyphs; + FT_UShort num_names; + + FT_UShort* glyph_indices = 0; + FT_Char** name_strings = 0; + + + if ( FT_READ_USHORT( num_glyphs ) ) + goto Exit; + + /* UNDOCUMENTED! The number of glyphs in this table can be smaller */ + /* than the value in the maxp table (cf. cyberbit.ttf). */ + + /* There already exist fonts which have more than 32768 glyph names */ + /* in this table, so the test for this threshold has been dropped. */ + + if ( num_glyphs > face->max_profile.numGlyphs ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + /* load the indices */ + { + FT_Int n; + + + if ( FT_NEW_ARRAY ( glyph_indices, num_glyphs ) || + FT_FRAME_ENTER( num_glyphs * 2L ) ) + goto Fail; + + for ( n = 0; n < num_glyphs; n++ ) + glyph_indices[n] = FT_GET_USHORT(); + + FT_FRAME_EXIT(); + } + + /* compute number of names stored in table */ + { + FT_Int n; + + + num_names = 0; + + for ( n = 0; n < num_glyphs; n++ ) + { + FT_Int idx; + + + idx = glyph_indices[n]; + if ( idx >= 258 ) + { + idx -= 257; + if ( idx > num_names ) + num_names = (FT_UShort)idx; + } + } + } + + /* now load the name strings */ + { + FT_UShort n; + + + if ( FT_NEW_ARRAY( name_strings, num_names ) ) + goto Fail; + + for ( n = 0; n < num_names; n++ ) + { + FT_UInt len; + + + if ( FT_STREAM_POS() >= post_limit ) + break; + else + { + FT_TRACE6(( "load_format_20: %d byte left in post table\n", + post_limit - FT_STREAM_POS() )); + + if ( FT_READ_BYTE( len ) ) + goto Fail1; + } + + if ( (FT_Int)len > post_limit || + FT_STREAM_POS() > post_limit - (FT_Int)len ) + { + FT_ERROR(( "load_format_20:" + " exceeding string length (%d)," + " truncating at end of post table (%d byte left)\n", + len, post_limit - FT_STREAM_POS() )); + len = FT_MAX( 0, post_limit - FT_STREAM_POS() ); + } + + if ( FT_NEW_ARRAY( name_strings[n], len + 1 ) || + FT_STREAM_READ( name_strings[n], len ) ) + goto Fail1; + + name_strings[n][len] = '\0'; + } + + if ( n < num_names ) + { + FT_ERROR(( "load_format_20:" + " all entries in post table are already parsed," + " using NULL names for gid %d - %d\n", + n, num_names - 1 )); + for ( ; n < num_names; n++ ) + if ( FT_NEW_ARRAY( name_strings[n], 1 ) ) + goto Fail1; + else + name_strings[n][0] = '\0'; + } + } + + /* all right, set table fields and exit successfully */ + { + TT_Post_20 table = &face->postscript_names.names.format_20; + + + table->num_glyphs = (FT_UShort)num_glyphs; + table->num_names = (FT_UShort)num_names; + table->glyph_indices = glyph_indices; + table->glyph_names = name_strings; + } + return SFNT_Err_Ok; + + Fail1: + { + FT_UShort n; + + + for ( n = 0; n < num_names; n++ ) + FT_FREE( name_strings[n] ); + } + + Fail: + FT_FREE( name_strings ); + FT_FREE( glyph_indices ); + + Exit: + return error; + } + + + static FT_Error + load_format_25( TT_Face face, + FT_Stream stream, + FT_Long post_limit ) + { + FT_Memory memory = stream->memory; + FT_Error error; + + FT_Int num_glyphs; + FT_Char* offset_table = 0; + + FT_UNUSED( post_limit ); + + + /* UNDOCUMENTED! This value appears only in the Apple TT specs. */ + if ( FT_READ_USHORT( num_glyphs ) ) + goto Exit; + + /* check the number of glyphs */ + if ( num_glyphs > face->max_profile.numGlyphs || num_glyphs > 258 ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_NEW_ARRAY( offset_table, num_glyphs ) || + FT_STREAM_READ( offset_table, num_glyphs ) ) + goto Fail; + + /* now check the offset table */ + { + FT_Int n; + + + for ( n = 0; n < num_glyphs; n++ ) + { + FT_Long idx = (FT_Long)n + offset_table[n]; + + + if ( idx < 0 || idx > num_glyphs ) + { + error = SFNT_Err_Invalid_File_Format; + goto Fail; + } + } + } + + /* OK, set table fields and exit successfully */ + { + TT_Post_25 table = &face->postscript_names.names.format_25; + + + table->num_glyphs = (FT_UShort)num_glyphs; + table->offsets = offset_table; + } + + return SFNT_Err_Ok; + + Fail: + FT_FREE( offset_table ); + + Exit: + return error; + } + + + static FT_Error + load_post_names( TT_Face face ) + { + FT_Stream stream; + FT_Error error; + FT_Fixed format; + FT_ULong post_len; + FT_Long post_limit; + + + /* get a stream for the face's resource */ + stream = face->root.stream; + + /* seek to the beginning of the PS names table */ + error = face->goto_table( face, TTAG_post, stream, &post_len ); + if ( error ) + goto Exit; + + post_limit = FT_STREAM_POS() + post_len; + + format = face->postscript.FormatType; + + /* go to beginning of subtable */ + if ( FT_STREAM_SKIP( 32 ) ) + goto Exit; + + /* now read postscript table */ + if ( format == 0x00020000L ) + error = load_format_20( face, stream, post_limit ); + else if ( format == 0x00028000L ) + error = load_format_25( face, stream, post_limit ); + else + error = SFNT_Err_Invalid_File_Format; + + face->postscript_names.loaded = 1; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + tt_face_free_ps_names( TT_Face face ) + { + FT_Memory memory = face->root.memory; + TT_Post_Names names = &face->postscript_names; + FT_Fixed format; + + + if ( names->loaded ) + { + format = face->postscript.FormatType; + + if ( format == 0x00020000L ) + { + TT_Post_20 table = &names->names.format_20; + FT_UShort n; + + + FT_FREE( table->glyph_indices ); + table->num_glyphs = 0; + + for ( n = 0; n < table->num_names; n++ ) + FT_FREE( table->glyph_names[n] ); + + FT_FREE( table->glyph_names ); + table->num_names = 0; + } + else if ( format == 0x00028000L ) + { + TT_Post_25 table = &names->names.format_25; + + + FT_FREE( table->offsets ); + table->num_glyphs = 0; + } + } + names->loaded = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_get_ps_name */ + /* */ + /* <Description> */ + /* Get the PostScript glyph name of a glyph. */ + /* */ + /* <Input> */ + /* face :: A handle to the parent face. */ + /* */ + /* idx :: The glyph index. */ + /* */ + /* <InOut> */ + /* PSname :: The address of a string pointer. Will be NULL in case */ + /* of error, otherwise it is a pointer to the glyph name. */ + /* */ + /* You must not modify the returned string! */ + /* */ + /* <Output> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_get_ps_name( TT_Face face, + FT_UInt idx, + FT_String** PSname ) + { + FT_Error error; + TT_Post_Names names; + FT_Fixed format; + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_Service_PsCMaps psnames; +#endif + + + if ( !face ) + return SFNT_Err_Invalid_Face_Handle; + + if ( idx >= (FT_UInt)face->max_profile.numGlyphs ) + return SFNT_Err_Invalid_Glyph_Index; + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + psnames = (FT_Service_PsCMaps)face->psnames; + if ( !psnames ) + return SFNT_Err_Unimplemented_Feature; +#endif + + names = &face->postscript_names; + + /* `.notdef' by default */ + *PSname = MAC_NAME( 0 ); + + format = face->postscript.FormatType; + + if ( format == 0x00010000L ) + { + if ( idx < 258 ) /* paranoid checking */ + *PSname = MAC_NAME( idx ); + } + else if ( format == 0x00020000L ) + { + TT_Post_20 table = &names->names.format_20; + + + if ( !names->loaded ) + { + error = load_post_names( face ); + if ( error ) + goto End; + } + + if ( idx < (FT_UInt)table->num_glyphs ) + { + FT_UShort name_index = table->glyph_indices[idx]; + + + if ( name_index < 258 ) + *PSname = MAC_NAME( name_index ); + else + *PSname = (FT_String*)table->glyph_names[name_index - 258]; + } + } + else if ( format == 0x00028000L ) + { + TT_Post_25 table = &names->names.format_25; + + + if ( !names->loaded ) + { + error = load_post_names( face ); + if ( error ) + goto End; + } + + if ( idx < (FT_UInt)table->num_glyphs ) /* paranoid checking */ + { + idx += table->offsets[idx]; + *PSname = MAC_NAME( idx ); + } + } + + /* nothing to do for format == 0x00030000L */ + + End: + return SFNT_Err_Ok; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.h new file mode 100644 index 000000000..bccec4609 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttpost.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* ttpost.h */ +/* */ +/* Postcript name table processing for TrueType and OpenType fonts */ +/* (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTPOST_H__ +#define __TTPOST_H__ + + +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_get_ps_name( TT_Face face, + FT_UInt idx, + FT_String** PSname ); + + FT_LOCAL( void ) + tt_face_free_ps_names( TT_Face face ); + + +FT_END_HEADER + +#endif /* __TTPOST_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.c new file mode 100644 index 000000000..a7863015e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.c @@ -0,0 +1,1508 @@ +/***************************************************************************/ +/* */ +/* ttsbit.c */ +/* */ +/* TrueType and OpenType embedded bitmap support (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H + + /* + * Alas, the memory-optimized sbit loader can't be used when implementing + * the `old internals' hack + */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + +#include "ttsbit0.c" + +#else /* FT_CONFIG_OPTION_OLD_INTERNALS */ + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttsbit.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttsbit + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* blit_sbit */ + /* */ + /* <Description> */ + /* Blits a bitmap from an input stream into a given target. Supports */ + /* x and y offsets as well as byte padded lines. */ + /* */ + /* <Input> */ + /* target :: The target bitmap/pixmap. */ + /* */ + /* source :: The input packed bitmap data. */ + /* */ + /* line_bits :: The number of bits per line. */ + /* */ + /* byte_padded :: A flag which is true if lines are byte-padded. */ + /* */ + /* x_offset :: The horizontal offset. */ + /* */ + /* y_offset :: The vertical offset. */ + /* */ + /* <Note> */ + /* IMPORTANT: The x and y offsets are relative to the top corner of */ + /* the target bitmap (unlike the normal TrueType */ + /* convention). A positive y offset indicates a downwards */ + /* direction! */ + /* */ + static void + blit_sbit( FT_Bitmap* target, + FT_Byte* source, + FT_Int line_bits, + FT_Bool byte_padded, + FT_Int x_offset, + FT_Int y_offset, + FT_Int source_height ) + { + FT_Byte* line_buff; + FT_Int line_incr; + FT_Int height; + + FT_UShort acc; + FT_UInt loaded; + + + /* first of all, compute starting write position */ + line_incr = target->pitch; + line_buff = target->buffer; + + if ( line_incr < 0 ) + line_buff -= line_incr * ( target->rows - 1 ); + + line_buff += ( x_offset >> 3 ) + y_offset * line_incr; + + /***********************************************************************/ + /* */ + /* We use the extra-classic `accumulator' trick to extract the bits */ + /* from the source byte stream. */ + /* */ + /* Namely, the variable `acc' is a 16-bit accumulator containing the */ + /* last `loaded' bits from the input stream. The bits are shifted to */ + /* the upmost position in `acc'. */ + /* */ + /***********************************************************************/ + + acc = 0; /* clear accumulator */ + loaded = 0; /* no bits were loaded */ + + for ( height = source_height; height > 0; height-- ) + { + FT_Byte* cur = line_buff; /* current write cursor */ + FT_Int count = line_bits; /* # of bits to extract per line */ + FT_Byte shift = (FT_Byte)( x_offset & 7 ); /* current write shift */ + FT_Byte space = (FT_Byte)( 8 - shift ); + + + /* first of all, read individual source bytes */ + if ( count >= 8 ) + { + count -= 8; + { + do + { + FT_Byte val; + + + /* ensure that there are at least 8 bits in the accumulator */ + if ( loaded < 8 ) + { + acc |= (FT_UShort)((FT_UShort)*source++ << ( 8 - loaded )); + loaded += 8; + } + + /* now write one byte */ + val = (FT_Byte)( acc >> 8 ); + if ( shift ) + { + cur[0] |= (FT_Byte)( val >> shift ); + cur[1] |= (FT_Byte)( val << space ); + } + else + cur[0] |= val; + + cur++; + acc <<= 8; /* remove bits from accumulator */ + loaded -= 8; + count -= 8; + + } while ( count >= 0 ); + } + + /* restore `count' to correct value */ + count += 8; + } + + /* now write remaining bits (count < 8) */ + if ( count > 0 ) + { + FT_Byte val; + + + /* ensure that there are at least `count' bits in the accumulator */ + if ( (FT_Int)loaded < count ) + { + acc |= (FT_UShort)((FT_UShort)*source++ << ( 8 - loaded )); + loaded += 8; + } + + /* now write remaining bits */ + val = (FT_Byte)( ( (FT_Byte)( acc >> 8 ) ) & ~( 0xFF >> count ) ); + cur[0] |= (FT_Byte)( val >> shift ); + + if ( count > space ) + cur[1] |= (FT_Byte)( val << space ); + + acc <<= count; + loaded -= count; + } + + /* now, skip to next line */ + if ( byte_padded ) + { + acc = 0; + loaded = 0; /* clear accumulator on byte-padded lines */ + } + + line_buff += line_incr; + } + } + + + static const FT_Frame_Field sbit_metrics_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_MetricsRec + + FT_FRAME_START( 8 ), + FT_FRAME_BYTE( height ), + FT_FRAME_BYTE( width ), + + FT_FRAME_CHAR( horiBearingX ), + FT_FRAME_CHAR( horiBearingY ), + FT_FRAME_BYTE( horiAdvance ), + + FT_FRAME_CHAR( vertBearingX ), + FT_FRAME_CHAR( vertBearingY ), + FT_FRAME_BYTE( vertAdvance ), + FT_FRAME_END + }; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_SBit_Const_Metrics */ + /* */ + /* <Description> */ + /* Loads the metrics for `EBLC' index tables format 2 and 5. */ + /* */ + /* <Input> */ + /* range :: The target range. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_SBit_Const_Metrics( TT_SBit_Range range, + FT_Stream stream ) + { + FT_Error error; + + + if ( FT_READ_ULONG( range->image_size ) ) + return error; + + return FT_STREAM_READ_FIELDS( sbit_metrics_fields, &range->metrics ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_SBit_Range_Codes */ + /* */ + /* <Description> */ + /* Loads the range codes for `EBLC' index tables format 4 and 5. */ + /* */ + /* <Input> */ + /* range :: The target range. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* load_offsets :: A flag whether to load the glyph offset table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_SBit_Range_Codes( TT_SBit_Range range, + FT_Stream stream, + FT_Bool load_offsets ) + { + FT_Error error; + FT_ULong count, n, size; + FT_Memory memory = stream->memory; + + + if ( FT_READ_ULONG( count ) ) + goto Exit; + + range->num_glyphs = count; + + /* Allocate glyph offsets table if needed */ + if ( load_offsets ) + { + if ( FT_NEW_ARRAY( range->glyph_offsets, count ) ) + goto Exit; + + size = count * 4L; + } + else + size = count * 2L; + + /* Allocate glyph codes table and access frame */ + if ( FT_NEW_ARRAY ( range->glyph_codes, count ) || + FT_FRAME_ENTER( size ) ) + goto Exit; + + for ( n = 0; n < count; n++ ) + { + range->glyph_codes[n] = FT_GET_USHORT(); + + if ( load_offsets ) + range->glyph_offsets[n] = (FT_ULong)range->image_offset + + FT_GET_USHORT(); + } + + FT_FRAME_EXIT(); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_SBit_Range */ + /* */ + /* <Description> */ + /* Loads a given `EBLC' index/range table. */ + /* */ + /* <Input> */ + /* range :: The target range. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_SBit_Range( TT_SBit_Range range, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + + + switch( range->index_format ) + { + case 1: /* variable metrics with 4-byte offsets */ + case 3: /* variable metrics with 2-byte offsets */ + { + FT_ULong num_glyphs, n; + FT_Int size_elem; + FT_Bool large = FT_BOOL( range->index_format == 1 ); + + + + if ( range->last_glyph < range->first_glyph ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + num_glyphs = range->last_glyph - range->first_glyph + 1L; + range->num_glyphs = num_glyphs; + num_glyphs++; /* XXX: BEWARE - see spec */ + + size_elem = large ? 4 : 2; + + if ( FT_NEW_ARRAY( range->glyph_offsets, num_glyphs ) || + FT_FRAME_ENTER( num_glyphs * size_elem ) ) + goto Exit; + + for ( n = 0; n < num_glyphs; n++ ) + range->glyph_offsets[n] = (FT_ULong)( range->image_offset + + ( large ? FT_GET_ULONG() + : FT_GET_USHORT() ) ); + FT_FRAME_EXIT(); + } + break; + + case 2: /* all glyphs have identical metrics */ + error = Load_SBit_Const_Metrics( range, stream ); + break; + + case 4: + error = Load_SBit_Range_Codes( range, stream, 1 ); + break; + + case 5: + error = Load_SBit_Const_Metrics( range, stream ); + if ( !error ) + error = Load_SBit_Range_Codes( range, stream, 0 ); + break; + + default: + error = SFNT_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_eblc */ + /* */ + /* <Description> */ + /* Loads the table of embedded bitmap sizes for this face. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_eblc( TT_Face face, + FT_Stream stream ) + { + FT_Error error = SFNT_Err_Ok; + FT_Memory memory = stream->memory; + FT_Fixed version; + FT_ULong num_strikes; + FT_ULong table_base; + + static const FT_Frame_Field sbit_line_metrics_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_LineMetricsRec + + /* no FT_FRAME_START */ + FT_FRAME_CHAR( ascender ), + FT_FRAME_CHAR( descender ), + FT_FRAME_BYTE( max_width ), + + FT_FRAME_CHAR( caret_slope_numerator ), + FT_FRAME_CHAR( caret_slope_denominator ), + FT_FRAME_CHAR( caret_offset ), + + FT_FRAME_CHAR( min_origin_SB ), + FT_FRAME_CHAR( min_advance_SB ), + FT_FRAME_CHAR( max_before_BL ), + FT_FRAME_CHAR( min_after_BL ), + FT_FRAME_CHAR( pads[0] ), + FT_FRAME_CHAR( pads[1] ), + FT_FRAME_END + }; + + static const FT_Frame_Field strike_start_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_StrikeRec + + /* no FT_FRAME_START */ + FT_FRAME_ULONG( ranges_offset ), + FT_FRAME_SKIP_LONG, + FT_FRAME_ULONG( num_ranges ), + FT_FRAME_ULONG( color_ref ), + FT_FRAME_END + }; + + static const FT_Frame_Field strike_end_fields[] = + { + /* no FT_FRAME_START */ + FT_FRAME_USHORT( start_glyph ), + FT_FRAME_USHORT( end_glyph ), + FT_FRAME_BYTE ( x_ppem ), + FT_FRAME_BYTE ( y_ppem ), + FT_FRAME_BYTE ( bit_depth ), + FT_FRAME_CHAR ( flags ), + FT_FRAME_END + }; + + + face->num_sbit_strikes = 0; + + /* this table is optional */ + error = face->goto_table( face, TTAG_EBLC, stream, 0 ); + if ( error ) + error = face->goto_table( face, TTAG_bloc, stream, 0 ); + if ( error ) + goto Exit; + + table_base = FT_STREAM_POS(); + if ( FT_FRAME_ENTER( 8L ) ) + goto Exit; + + version = FT_GET_LONG(); + num_strikes = FT_GET_ULONG(); + + FT_FRAME_EXIT(); + + /* check version number and strike count */ + if ( version != 0x00020000L || + num_strikes >= 0x10000L ) + { + FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); + error = SFNT_Err_Invalid_File_Format; + + goto Exit; + } + + /* allocate the strikes table */ + if ( FT_NEW_ARRAY( face->sbit_strikes, num_strikes ) ) + goto Exit; + + face->num_sbit_strikes = num_strikes; + + /* now read each strike table separately */ + { + TT_SBit_Strike strike = face->sbit_strikes; + FT_ULong count = num_strikes; + + + if ( FT_FRAME_ENTER( 48L * num_strikes ) ) + goto Exit; + + while ( count > 0 ) + { + if ( FT_STREAM_READ_FIELDS( strike_start_fields, strike ) || + FT_STREAM_READ_FIELDS( sbit_line_metrics_fields, &strike->hori ) || + FT_STREAM_READ_FIELDS( sbit_line_metrics_fields, &strike->vert ) || + FT_STREAM_READ_FIELDS( strike_end_fields, strike ) ) + break; + + count--; + strike++; + } + + FT_FRAME_EXIT(); + } + + /* allocate the index ranges for each strike table */ + { + TT_SBit_Strike strike = face->sbit_strikes; + FT_ULong count = num_strikes; + + + while ( count > 0 ) + { + TT_SBit_Range range; + FT_ULong count2 = strike->num_ranges; + + + /* read each range */ + if ( FT_STREAM_SEEK( table_base + strike->ranges_offset ) || + FT_FRAME_ENTER( strike->num_ranges * 8L ) ) + goto Exit; + + if ( FT_NEW_ARRAY( strike->sbit_ranges, strike->num_ranges ) ) + goto Exit; + + range = strike->sbit_ranges; + while ( count2 > 0 ) + { + range->first_glyph = FT_GET_USHORT(); + range->last_glyph = FT_GET_USHORT(); + range->table_offset = table_base + strike->ranges_offset + + FT_GET_ULONG(); + count2--; + range++; + } + + FT_FRAME_EXIT(); + + /* Now, read each index table */ + count2 = strike->num_ranges; + range = strike->sbit_ranges; + while ( count2 > 0 ) + { + /* Read the header */ + if ( FT_STREAM_SEEK( range->table_offset ) || + FT_FRAME_ENTER( 8L ) ) + goto Exit; + + range->index_format = FT_GET_USHORT(); + range->image_format = FT_GET_USHORT(); + range->image_offset = FT_GET_ULONG(); + + FT_FRAME_EXIT(); + + error = Load_SBit_Range( range, stream ); + if ( error ) + goto Exit; + + count2--; + range++; + } + + count--; + strike++; + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_free_eblc */ + /* */ + /* <Description> */ + /* Releases the embedded bitmap tables. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + FT_LOCAL_DEF( void ) + tt_face_free_eblc( TT_Face face ) + { + FT_Memory memory = face->root.memory; + TT_SBit_Strike strike = face->sbit_strikes; + TT_SBit_Strike strike_limit = strike + face->num_sbit_strikes; + + + if ( strike ) + { + for ( ; strike < strike_limit; strike++ ) + { + TT_SBit_Range range = strike->sbit_ranges; + TT_SBit_Range range_limit = range + strike->num_ranges; + + + if ( range ) + { + for ( ; range < range_limit; range++ ) + { + /* release the glyph offsets and codes tables */ + /* where appropriate */ + FT_FREE( range->glyph_offsets ); + FT_FREE( range->glyph_codes ); + } + } + FT_FREE( strike->sbit_ranges ); + strike->num_ranges = 0; + } + FT_FREE( face->sbit_strikes ); + } + face->num_sbit_strikes = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_set_sbit_strike( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ) + { + return FT_Match_Size( (FT_Face)face, req, 0, astrike_index ); + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_strike_metrics( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ) + { + TT_SBit_Strike strike; + + + if ( strike_index >= face->num_sbit_strikes ) + return SFNT_Err_Invalid_Argument; + + strike = face->sbit_strikes + strike_index; + + metrics->x_ppem = strike->x_ppem; + metrics->y_ppem = strike->y_ppem; + + metrics->ascender = strike->hori.ascender << 6; + metrics->descender = strike->hori.descender << 6; + + /* XXX: Is this correct? */ + metrics->max_advance = ( strike->hori.min_origin_SB + + strike->hori.max_width + + strike->hori.min_advance_SB ) << 6; + + metrics->height = metrics->ascender - metrics->descender; + + return SFNT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_sbit_range */ + /* */ + /* <Description> */ + /* Scans a given strike's ranges and return, for a given glyph */ + /* index, the corresponding sbit range, and `EBDT' offset. */ + /* */ + /* <Input> */ + /* glyph_index :: The glyph index. */ + /* */ + /* strike :: The source/current sbit strike. */ + /* */ + /* <Output> */ + /* arange :: The sbit range containing the glyph index. */ + /* */ + /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means the glyph index was found. */ + /* */ + static FT_Error + find_sbit_range( FT_UInt glyph_index, + TT_SBit_Strike strike, + TT_SBit_Range *arange, + FT_ULong *aglyph_offset ) + { + TT_SBit_RangeRec *range, *range_limit; + + + /* check whether the glyph index is within this strike's */ + /* glyph range */ + if ( glyph_index < (FT_UInt)strike->start_glyph || + glyph_index > (FT_UInt)strike->end_glyph ) + goto Fail; + + /* scan all ranges in strike */ + range = strike->sbit_ranges; + range_limit = range + strike->num_ranges; + if ( !range ) + goto Fail; + + for ( ; range < range_limit; range++ ) + { + if ( glyph_index >= (FT_UInt)range->first_glyph && + glyph_index <= (FT_UInt)range->last_glyph ) + { + FT_UShort delta = (FT_UShort)( glyph_index - range->first_glyph ); + + + switch ( range->index_format ) + { + case 1: + case 3: + *aglyph_offset = range->glyph_offsets[delta]; + break; + + case 2: + *aglyph_offset = range->image_offset + + range->image_size * delta; + break; + + case 4: + case 5: + { + FT_ULong n; + + + for ( n = 0; n < range->num_glyphs; n++ ) + { + if ( (FT_UInt)range->glyph_codes[n] == glyph_index ) + { + if ( range->index_format == 4 ) + *aglyph_offset = range->glyph_offsets[n]; + else + *aglyph_offset = range->image_offset + + n * range->image_size; + goto Found; + } + } + } + + /* fall-through */ + default: + goto Fail; + } + + Found: + /* return successfully! */ + *arange = range; + return SFNT_Err_Ok; + } + } + + Fail: + *arange = 0; + *aglyph_offset = 0; + + return SFNT_Err_Invalid_Argument; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_find_sbit_image */ + /* */ + /* <Description> */ + /* Checks whether an embedded bitmap (an `sbit') exists for a given */ + /* glyph, at a given strike. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* strike_index :: The current strike index. */ + /* */ + /* <Output> */ + /* arange :: The SBit range containing the glyph index. */ + /* */ + /* astrike :: The SBit strike containing the glyph index. */ + /* */ + /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns */ + /* SFNT_Err_Invalid_Argument if no sbit exists for the requested */ + /* glyph. */ + /* */ + FT_LOCAL( FT_Error ) + tt_find_sbit_image( TT_Face face, + FT_UInt glyph_index, + FT_ULong strike_index, + TT_SBit_Range *arange, + TT_SBit_Strike *astrike, + FT_ULong *aglyph_offset ) + { + FT_Error error; + TT_SBit_Strike strike; + + + if ( !face->sbit_strikes || + ( face->num_sbit_strikes <= strike_index ) ) + goto Fail; + + strike = &face->sbit_strikes[strike_index]; + + error = find_sbit_range( glyph_index, strike, + arange, aglyph_offset ); + if ( error ) + goto Fail; + + *astrike = strike; + + return SFNT_Err_Ok; + + Fail: + /* no embedded bitmap for this glyph in face */ + *arange = 0; + *astrike = 0; + *aglyph_offset = 0; + + return SFNT_Err_Invalid_Argument; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_load_sbit_metrics */ + /* */ + /* <Description> */ + /* Gets the big metrics for a given SBit. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* range :: The SBit range containing the glyph. */ + /* */ + /* <Output> */ + /* big_metrics :: A big SBit metrics structure for the glyph. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be positioned at the glyph's offset within */ + /* the `EBDT' table before the call. */ + /* */ + /* If the image format uses variable metrics, the stream cursor is */ + /* positioned just after the metrics header in the `EBDT' table on */ + /* function exit. */ + /* */ + FT_LOCAL( FT_Error ) + tt_load_sbit_metrics( FT_Stream stream, + TT_SBit_Range range, + TT_SBit_Metrics metrics ) + { + FT_Error error = SFNT_Err_Ok; + + + switch ( range->image_format ) + { + case 1: + case 2: + case 8: + /* variable small metrics */ + { + TT_SBit_SmallMetricsRec smetrics; + + static const FT_Frame_Field sbit_small_metrics_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_SmallMetricsRec + + FT_FRAME_START( 5 ), + FT_FRAME_BYTE( height ), + FT_FRAME_BYTE( width ), + FT_FRAME_CHAR( bearingX ), + FT_FRAME_CHAR( bearingY ), + FT_FRAME_BYTE( advance ), + FT_FRAME_END + }; + + + /* read small metrics */ + if ( FT_STREAM_READ_FIELDS( sbit_small_metrics_fields, &smetrics ) ) + goto Exit; + + /* convert it to a big metrics */ + metrics->height = smetrics.height; + metrics->width = smetrics.width; + metrics->horiBearingX = smetrics.bearingX; + metrics->horiBearingY = smetrics.bearingY; + metrics->horiAdvance = smetrics.advance; + + /* these metrics are made up at a higher level when */ + /* needed. */ + metrics->vertBearingX = 0; + metrics->vertBearingY = 0; + metrics->vertAdvance = 0; + } + break; + + case 6: + case 7: + case 9: + /* variable big metrics */ + if ( FT_STREAM_READ_FIELDS( sbit_metrics_fields, metrics ) ) + goto Exit; + break; + + case 5: + default: /* constant metrics */ + if ( range->index_format == 2 || range->index_format == 5 ) + *metrics = range->metrics; + else + return SFNT_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* crop_bitmap */ + /* */ + /* <Description> */ + /* Crops a bitmap to its tightest bounding box, and adjusts its */ + /* metrics. */ + /* */ + /* <InOut> */ + /* map :: The bitmap. */ + /* */ + /* metrics :: The corresponding metrics structure. */ + /* */ + static void + crop_bitmap( FT_Bitmap* map, + TT_SBit_Metrics metrics ) + { + /***********************************************************************/ + /* */ + /* In this situation, some bounding boxes of embedded bitmaps are too */ + /* large. We need to crop it to a reasonable size. */ + /* */ + /* --------- */ + /* | | ----- */ + /* | *** | |***| */ + /* | * | | * | */ + /* | * | ------> | * | */ + /* | * | | * | */ + /* | * | | * | */ + /* | *** | |***| */ + /* --------- ----- */ + /* */ + /***********************************************************************/ + + FT_Int rows, count; + FT_Long line_len; + FT_Byte* line; + + + /***********************************************************************/ + /* */ + /* first of all, check the top-most lines of the bitmap, and remove */ + /* them if they're empty. */ + /* */ + { + line = (FT_Byte*)map->buffer; + rows = map->rows; + line_len = map->pitch; + + + for ( count = 0; count < rows; count++ ) + { + FT_Byte* cur = line; + FT_Byte* limit = line + line_len; + + + for ( ; cur < limit; cur++ ) + if ( cur[0] ) + goto Found_Top; + + /* the current line was empty - skip to next one */ + line = limit; + } + + Found_Top: + /* check that we have at least one filled line */ + if ( count >= rows ) + goto Empty_Bitmap; + + /* now, crop the empty upper lines */ + if ( count > 0 ) + { + line = (FT_Byte*)map->buffer; + + FT_MEM_MOVE( line, line + count * line_len, + ( rows - count ) * line_len ); + + metrics->height = (FT_Byte)( metrics->height - count ); + metrics->horiBearingY = (FT_Char)( metrics->horiBearingY - count ); + metrics->vertBearingY = (FT_Char)( metrics->vertBearingY - count ); + + map->rows -= count; + rows -= count; + } + } + + /***********************************************************************/ + /* */ + /* second, crop the lower lines */ + /* */ + { + line = (FT_Byte*)map->buffer + ( rows - 1 ) * line_len; + + for ( count = 0; count < rows; count++ ) + { + FT_Byte* cur = line; + FT_Byte* limit = line + line_len; + + + for ( ; cur < limit; cur++ ) + if ( cur[0] ) + goto Found_Bottom; + + /* the current line was empty - skip to previous one */ + line -= line_len; + } + + Found_Bottom: + if ( count > 0 ) + { + metrics->height = (FT_Byte)( metrics->height - count ); + rows -= count; + map->rows -= count; + } + } + + /***********************************************************************/ + /* */ + /* third, get rid of the space on the left side of the glyph */ + /* */ + do + { + FT_Byte* limit; + + + line = (FT_Byte*)map->buffer; + limit = line + rows * line_len; + + for ( ; line < limit; line += line_len ) + if ( line[0] & 0x80 ) + goto Found_Left; + + /* shift the whole glyph one pixel to the left */ + line = (FT_Byte*)map->buffer; + limit = line + rows * line_len; + + for ( ; line < limit; line += line_len ) + { + FT_Int n, width = map->width; + FT_Byte old; + FT_Byte* cur = line; + + + old = (FT_Byte)(cur[0] << 1); + for ( n = 8; n < width; n += 8 ) + { + FT_Byte val; + + + val = cur[1]; + cur[0] = (FT_Byte)( old | ( val >> 7 ) ); + old = (FT_Byte)( val << 1 ); + cur++; + } + cur[0] = old; + } + + map->width--; + metrics->horiBearingX++; + metrics->vertBearingX++; + metrics->width--; + + } while ( map->width > 0 ); + + Found_Left: + + /***********************************************************************/ + /* */ + /* finally, crop the bitmap width to get rid of the space on the right */ + /* side of the glyph. */ + /* */ + do + { + FT_Int right = map->width - 1; + FT_Byte* limit; + FT_Byte mask; + + + line = (FT_Byte*)map->buffer + ( right >> 3 ); + limit = line + rows * line_len; + mask = (FT_Byte)( 0x80 >> ( right & 7 ) ); + + for ( ; line < limit; line += line_len ) + if ( line[0] & mask ) + goto Found_Right; + + /* crop the whole glyph to the right */ + map->width--; + metrics->width--; + + } while ( map->width > 0 ); + + Found_Right: + /* all right, the bitmap was cropped */ + return; + + Empty_Bitmap: + map->width = 0; + map->rows = 0; + map->pitch = 0; + map->pixel_mode = FT_PIXEL_MODE_MONO; + } + + + static FT_Error + Load_SBit_Single( FT_Bitmap* map, + FT_Int x_offset, + FT_Int y_offset, + FT_Int pix_bits, + FT_UShort image_format, + TT_SBit_Metrics metrics, + FT_Stream stream ) + { + FT_Error error; + + + /* check that the source bitmap fits into the target pixmap */ + if ( x_offset < 0 || x_offset + metrics->width > map->width || + y_offset < 0 || y_offset + metrics->height > map->rows ) + { + error = SFNT_Err_Invalid_Argument; + + goto Exit; + } + + { + FT_Int glyph_width = metrics->width; + FT_Int glyph_height = metrics->height; + FT_Int glyph_size; + FT_Int line_bits = pix_bits * glyph_width; + FT_Bool pad_bytes = 0; + + + /* compute size of glyph image */ + switch ( image_format ) + { + case 1: /* byte-padded formats */ + case 6: + { + FT_Int line_length; + + + switch ( pix_bits ) + { + case 1: + line_length = ( glyph_width + 7 ) >> 3; + break; + case 2: + line_length = ( glyph_width + 3 ) >> 2; + break; + case 4: + line_length = ( glyph_width + 1 ) >> 1; + break; + default: + line_length = glyph_width; + } + + glyph_size = glyph_height * line_length; + pad_bytes = 1; + } + break; + + case 2: + case 5: + case 7: + line_bits = glyph_width * pix_bits; + glyph_size = ( glyph_height * line_bits + 7 ) >> 3; + break; + + default: /* invalid format */ + return SFNT_Err_Invalid_File_Format; + } + + /* Now read data and draw glyph into target pixmap */ + if ( FT_FRAME_ENTER( glyph_size ) ) + goto Exit; + + /* don't forget to multiply `x_offset' by `map->pix_bits' as */ + /* the sbit blitter doesn't make a difference between pixmap */ + /* depths. */ + blit_sbit( map, (FT_Byte*)stream->cursor, line_bits, pad_bytes, + x_offset * pix_bits, y_offset, metrics->height ); + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + static FT_Error + Load_SBit_Image( TT_SBit_Strike strike, + TT_SBit_Range range, + FT_ULong ebdt_pos, + FT_ULong glyph_offset, + FT_GlyphSlot slot, + FT_Int x_offset, + FT_Int y_offset, + FT_Stream stream, + TT_SBit_Metrics metrics, + FT_Int depth ) + { + FT_Memory memory = stream->memory; + FT_Bitmap* map = &slot->bitmap; + FT_Error error; + + + /* place stream at beginning of glyph data and read metrics */ + if ( FT_STREAM_SEEK( ebdt_pos + glyph_offset ) ) + goto Exit; + + error = tt_load_sbit_metrics( stream, range, metrics ); + if ( error ) + goto Exit; + + /* This function is recursive. At the top-level call, we */ + /* compute the dimensions of the higher-level glyph to */ + /* allocate the final pixmap buffer. */ + if ( depth == 0 ) + { + FT_Long size; + + + map->width = metrics->width; + map->rows = metrics->height; + + switch ( strike->bit_depth ) + { + case 1: + map->pixel_mode = FT_PIXEL_MODE_MONO; + map->pitch = ( map->width + 7 ) >> 3; + break; + + case 2: + map->pixel_mode = FT_PIXEL_MODE_GRAY2; + map->pitch = ( map->width + 3 ) >> 2; + break; + + case 4: + map->pixel_mode = FT_PIXEL_MODE_GRAY4; + map->pitch = ( map->width + 1 ) >> 1; + break; + + case 8: + map->pixel_mode = FT_PIXEL_MODE_GRAY; + map->pitch = map->width; + break; + + default: + return SFNT_Err_Invalid_File_Format; + } + + size = map->rows * map->pitch; + + /* check that there is no empty image */ + if ( size == 0 ) + goto Exit; /* exit successfully! */ + + error = ft_glyphslot_alloc_bitmap( slot, size ); + if (error) + goto Exit; + } + + switch ( range->image_format ) + { + case 1: /* single sbit image - load it */ + case 2: + case 5: + case 6: + case 7: + return Load_SBit_Single( map, x_offset, y_offset, strike->bit_depth, + range->image_format, metrics, stream ); + + case 8: /* compound format */ + if ( FT_STREAM_SKIP( 1L ) ) + { + error = SFNT_Err_Invalid_Stream_Skip; + goto Exit; + } + /* fallthrough */ + + case 9: + break; + + default: /* invalid image format */ + return SFNT_Err_Invalid_File_Format; + } + + /* All right, we have a compound format. First of all, read */ + /* the array of elements. */ + { + TT_SBit_Component components = NULL; + TT_SBit_Component comp; + FT_UShort num_components, count; + + + if ( FT_READ_USHORT( num_components ) || + FT_NEW_ARRAY( components, num_components ) ) + goto Exit; + + count = num_components; + + if ( FT_FRAME_ENTER( 4L * num_components ) ) + goto Fail_Memory; + + for ( comp = components; count > 0; count--, comp++ ) + { + comp->glyph_code = FT_GET_USHORT(); + comp->x_offset = FT_GET_CHAR(); + comp->y_offset = FT_GET_CHAR(); + } + + FT_FRAME_EXIT(); + + /* Now recursively load each element glyph */ + count = num_components; + comp = components; + for ( ; count > 0; count--, comp++ ) + { + TT_SBit_Range elem_range; + TT_SBit_MetricsRec elem_metrics; + FT_ULong elem_offset; + + + /* find the range for this element */ + error = find_sbit_range( comp->glyph_code, + strike, + &elem_range, + &elem_offset ); + if ( error ) + goto Fail_Memory; + + /* now load the element, recursively */ + error = Load_SBit_Image( strike, + elem_range, + ebdt_pos, + elem_offset, + slot, + x_offset + comp->x_offset, + y_offset + comp->y_offset, + stream, + &elem_metrics, + depth + 1 ); + if ( error ) + goto Fail_Memory; + } + + Fail_Memory: + FT_FREE( components ); + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_sbit_image */ + /* */ + /* <Description> */ + /* Loads a given glyph sbit image from the font resource. This also */ + /* returns its metrics. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* strike_index :: The current strike index. */ + /* */ + /* glyph_index :: The current glyph index. */ + /* */ + /* load_flags :: The glyph load flags (the code checks for the flag */ + /* FT_LOAD_CROP_BITMAP). */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Output> */ + /* map :: The target pixmap. */ + /* */ + /* metrics :: A big sbit metrics structure for the glyph image. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* glyph sbit exists for the index. */ + /* */ + /* <Note> */ + /* The `map.buffer' field is always freed before the glyph is loaded. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_sbit_image( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *map, + TT_SBit_MetricsRec *metrics ) + { + FT_Error error; + FT_ULong ebdt_pos, glyph_offset; + + TT_SBit_Strike strike; + TT_SBit_Range range; + + + /* Check whether there is a glyph sbit for the current index */ + error = tt_find_sbit_image( face, glyph_index, strike_index, + &range, &strike, &glyph_offset ); + if ( error ) + goto Exit; + + /* now, find the location of the `EBDT' table in */ + /* the font file */ + error = face->goto_table( face, TTAG_EBDT, stream, 0 ); + if ( error ) + error = face->goto_table( face, TTAG_bdat, stream, 0 ); + if ( error ) + goto Exit; + + ebdt_pos = FT_STREAM_POS(); + + error = Load_SBit_Image( strike, range, ebdt_pos, glyph_offset, + face->root.glyph, 0, 0, stream, metrics, 0 ); + if ( error ) + goto Exit; + + /* setup vertical metrics if needed */ + if ( strike->flags & 1 ) + { + /* in case of a horizontal strike only */ + FT_Int advance; + + + advance = strike->hori.ascender - strike->hori.descender; + + /* some heuristic values */ + + metrics->vertBearingX = (FT_Char)(-metrics->width / 2 ); + metrics->vertBearingY = (FT_Char)( ( advance - metrics->height ) / 2 ); + metrics->vertAdvance = (FT_Char)( advance * 12 / 10 ); + } + + /* Crop the bitmap now, unless specified otherwise */ + if ( load_flags & FT_LOAD_CROP_BITMAP ) + crop_bitmap( map, metrics ); + + Exit: + return error; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.h b/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.h new file mode 100644 index 000000000..8a8da9026 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit.h @@ -0,0 +1,79 @@ +/***************************************************************************/ +/* */ +/* ttsbit.h */ +/* */ +/* TrueType and OpenType embedded bitmap support (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTSBIT_H__ +#define __TTSBIT_H__ + + +#include <freetype/ft2build.h> +#include "ttload.h" + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_eblc( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + tt_face_free_eblc( TT_Face face ); + + + FT_LOCAL( FT_Error ) + tt_face_set_sbit_strike( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ); + + FT_LOCAL( FT_Error ) + tt_face_load_strike_metrics( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ); + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_LOCAL( FT_Error ) + tt_find_sbit_image( TT_Face face, + FT_UInt glyph_index, + FT_ULong strike_index, + TT_SBit_Range *arange, + TT_SBit_Strike *astrike, + FT_ULong *aglyph_offset ); + + FT_LOCAL( FT_Error ) + tt_load_sbit_metrics( FT_Stream stream, + TT_SBit_Range range, + TT_SBit_Metrics metrics ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_LOCAL( FT_Error ) + tt_face_load_sbit_image( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *map, + TT_SBit_MetricsRec *metrics ); + + +FT_END_HEADER + +#endif /* __TTSBIT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit0.c b/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit0.c new file mode 100644 index 000000000..46ff8a85a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/sfnt/ttsbit0.c @@ -0,0 +1,1011 @@ +/***************************************************************************/ +/* */ +/* ttsbit0.c */ +/* */ +/* TrueType and OpenType embedded bitmap support (body). */ +/* This is a heap-optimized version. */ +/* */ +/* Copyright 2005, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/* This file is included by ttsbit.c */ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttsbit.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttsbit + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_eblc( TT_Face face, + FT_Stream stream ) + { + FT_Error error = SFNT_Err_Ok; + FT_Fixed version; + FT_ULong num_strikes, table_size; + FT_Byte* p; + FT_Byte* p_limit; + FT_UInt count; + + + face->sbit_num_strikes = 0; + + /* this table is optional */ + error = face->goto_table( face, TTAG_EBLC, stream, &table_size ); + if ( error ) + error = face->goto_table( face, TTAG_bloc, stream, &table_size ); + if ( error ) + goto Exit; + + if ( table_size < 8 ) + { + FT_ERROR(( "tt_face_load_sbit_strikes: table too short\n" )); + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_FRAME_EXTRACT( table_size, face->sbit_table ) ) + goto Exit; + + face->sbit_table_size = table_size; + + p = face->sbit_table; + p_limit = p + table_size; + + version = FT_NEXT_ULONG( p ); + num_strikes = FT_NEXT_ULONG( p ); + + if ( version != 0x00020000UL || num_strikes >= 0x10000UL ) + { + FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); + error = SFNT_Err_Invalid_File_Format; + goto Fail; + } + + /* + * Count the number of strikes available in the table. We are a bit + * paranoid there and don't trust the data. + */ + count = (FT_UInt)num_strikes; + if ( 8 + 48UL * count > table_size ) + count = (FT_UInt)( ( p_limit - p ) / 48 ); + + face->sbit_num_strikes = count; + + FT_TRACE3(( "sbit_num_strikes: %u\n", count )); + Exit: + return error; + + Fail: + FT_FRAME_RELEASE( face->sbit_table ); + face->sbit_table_size = 0; + goto Exit; + } + + + FT_LOCAL_DEF( void ) + tt_face_free_eblc( TT_Face face ) + { + FT_Stream stream = face->root.stream; + + + FT_FRAME_RELEASE( face->sbit_table ); + face->sbit_table_size = 0; + face->sbit_num_strikes = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_set_sbit_strike( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ) + { + return FT_Match_Size( (FT_Face)face, req, 0, astrike_index ); + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_strike_metrics( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ) + { + FT_Byte* strike; + + + if ( strike_index >= (FT_ULong)face->sbit_num_strikes ) + return SFNT_Err_Invalid_Argument; + + strike = face->sbit_table + 8 + strike_index * 48; + + metrics->x_ppem = (FT_UShort)strike[44]; + metrics->y_ppem = (FT_UShort)strike[45]; + + metrics->ascender = (FT_Char)strike[16] << 6; /* hori.ascender */ + metrics->descender = (FT_Char)strike[17] << 6; /* hori.descender */ + metrics->height = metrics->ascender - metrics->descender; + + /* XXX: Is this correct? */ + metrics->max_advance = ( (FT_Char)strike[22] + /* min_origin_SB */ + strike[18] + /* max_width */ + (FT_Char)strike[23] /* min_advance_SB */ + ) << 6; + + return SFNT_Err_Ok; + } + + + typedef struct TT_SBitDecoderRec_ + { + TT_Face face; + FT_Stream stream; + FT_Bitmap* bitmap; + TT_SBit_Metrics metrics; + FT_Bool metrics_loaded; + FT_Bool bitmap_allocated; + FT_Byte bit_depth; + + FT_ULong ebdt_start; + FT_ULong ebdt_size; + + FT_ULong strike_index_array; + FT_ULong strike_index_count; + FT_Byte* eblc_base; + FT_Byte* eblc_limit; + + } TT_SBitDecoderRec, *TT_SBitDecoder; + + + static FT_Error + tt_sbit_decoder_init( TT_SBitDecoder decoder, + TT_Face face, + FT_ULong strike_index, + TT_SBit_MetricsRec* metrics ) + { + FT_Error error; + FT_Stream stream = face->root.stream; + FT_ULong ebdt_size; + + + error = face->goto_table( face, TTAG_EBDT, stream, &ebdt_size ); + if ( error ) + error = face->goto_table( face, TTAG_bdat, stream, &ebdt_size ); + if ( error ) + goto Exit; + + decoder->face = face; + decoder->stream = stream; + decoder->bitmap = &face->root.glyph->bitmap; + decoder->metrics = metrics; + + decoder->metrics_loaded = 0; + decoder->bitmap_allocated = 0; + + decoder->ebdt_start = FT_STREAM_POS(); + decoder->ebdt_size = ebdt_size; + + decoder->eblc_base = face->sbit_table; + decoder->eblc_limit = face->sbit_table + face->sbit_table_size; + + /* now find the strike corresponding to the index */ + { + FT_Byte* p; + + + if ( 8 + 48 * strike_index + 3 * 4 + 34 + 1 > face->sbit_table_size ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + p = decoder->eblc_base + 8 + 48 * strike_index; + + decoder->strike_index_array = FT_NEXT_ULONG( p ); + p += 4; + decoder->strike_index_count = FT_NEXT_ULONG( p ); + p += 34; + decoder->bit_depth = *p; + + if ( decoder->strike_index_array > face->sbit_table_size || + decoder->strike_index_array + 8 * decoder->strike_index_count > + face->sbit_table_size ) + error = SFNT_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + static void + tt_sbit_decoder_done( TT_SBitDecoder decoder ) + { + FT_UNUSED( decoder ); + } + + + static FT_Error + tt_sbit_decoder_alloc_bitmap( TT_SBitDecoder decoder ) + { + FT_Error error = SFNT_Err_Ok; + FT_UInt width, height; + FT_Bitmap* map = decoder->bitmap; + FT_Long size; + + + if ( !decoder->metrics_loaded ) + { + error = SFNT_Err_Invalid_Argument; + goto Exit; + } + + width = decoder->metrics->width; + height = decoder->metrics->height; + + map->width = (int)width; + map->rows = (int)height; + + switch ( decoder->bit_depth ) + { + case 1: + map->pixel_mode = FT_PIXEL_MODE_MONO; + map->pitch = ( map->width + 7 ) >> 3; + break; + + case 2: + map->pixel_mode = FT_PIXEL_MODE_GRAY2; + map->pitch = ( map->width + 3 ) >> 2; + break; + + case 4: + map->pixel_mode = FT_PIXEL_MODE_GRAY4; + map->pitch = ( map->width + 1 ) >> 1; + break; + + case 8: + map->pixel_mode = FT_PIXEL_MODE_GRAY; + map->pitch = map->width; + break; + + default: + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + size = map->rows * map->pitch; + + /* check that there is no empty image */ + if ( size == 0 ) + goto Exit; /* exit successfully! */ + + error = ft_glyphslot_alloc_bitmap( decoder->face->root.glyph, size ); + if ( error ) + goto Exit; + + decoder->bitmap_allocated = 1; + + Exit: + return error; + } + + + static FT_Error + tt_sbit_decoder_load_metrics( TT_SBitDecoder decoder, + FT_Byte* *pp, + FT_Byte* limit, + FT_Bool big ) + { + FT_Byte* p = *pp; + TT_SBit_Metrics metrics = decoder->metrics; + + + if ( p + 5 > limit ) + goto Fail; + + metrics->height = p[0]; + metrics->width = p[1]; + metrics->horiBearingX = (FT_Char)p[2]; + metrics->horiBearingY = (FT_Char)p[3]; + metrics->horiAdvance = p[4]; + + p += 5; + if ( big ) + { + if ( p + 3 > limit ) + goto Fail; + + metrics->vertBearingX = (FT_Char)p[0]; + metrics->vertBearingY = (FT_Char)p[1]; + metrics->vertAdvance = p[2]; + + p += 3; + } + + decoder->metrics_loaded = 1; + *pp = p; + return SFNT_Err_Ok; + + Fail: + return SFNT_Err_Invalid_Argument; + } + + + /* forward declaration */ + static FT_Error + tt_sbit_decoder_load_image( TT_SBitDecoder decoder, + FT_UInt glyph_index, + FT_Int x_pos, + FT_Int y_pos ); + + typedef FT_Error (*TT_SBitDecoder_LoadFunc)( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* plimit, + FT_Int x_pos, + FT_Int y_pos ); + + + static FT_Error + tt_sbit_decoder_load_byte_aligned( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* limit, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error = SFNT_Err_Ok; + FT_Byte* line; + FT_Int bit_height, bit_width, pitch, width, height, h; + FT_Bitmap* bitmap; + + + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + + /* check that we can write the glyph into the bitmap */ + bitmap = decoder->bitmap; + bit_width = bitmap->width; + bit_height = bitmap->rows; + pitch = bitmap->pitch; + line = bitmap->buffer; + + width = decoder->metrics->width; + height = decoder->metrics->height; + + if ( x_pos < 0 || x_pos + width > bit_width || + y_pos < 0 || y_pos + height > bit_height ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( p + ( ( width + 7 ) >> 3 ) * height > limit ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + /* now do the blit */ + line += y_pos * pitch + ( x_pos >> 3 ); + x_pos &= 7; + + if ( x_pos == 0 ) /* the easy one */ + { + for ( h = height; h > 0; h--, line += pitch ) + { + FT_Byte* write = line; + FT_Int w; + + + for ( w = width; w >= 8; w -= 8 ) + { + write[0] = (FT_Byte)( write[0] | *p++ ); + write += 1; + } + + if ( w > 0 ) + write[0] = (FT_Byte)( write[0] | ( *p++ & ( 0xFF00U >> w ) ) ); + } + } + else /* x_pos > 0 */ + { + for ( h = height; h > 0; h--, line += pitch ) + { + FT_Byte* write = line; + FT_Int w; + FT_UInt wval = 0; + + + for ( w = width; w >= 8; w -= 8 ) + { + wval = (FT_UInt)( wval | *p++ ); + write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); + write += 1; + wval <<= 8; + } + + if ( w > 0 ) + wval = (FT_UInt)( wval | ( *p++ & ( 0xFF00U >> w ) ) ); + + /* all bits read and there are `x_pos + w' bits to be written */ + + write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); + + if ( x_pos + w > 8 ) + { + write++; + wval <<= 8; + write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); + } + } + } + + Exit: + return error; + } + + + /* + * Load a bit-aligned bitmap (with pointer `p') into a line-aligned bitmap + * (with pointer `write'). In the example below, the width is 3 pixel, + * and `x_pos' is 1 pixel. + * + * p p+1 + * | | | + * | 7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0 |... + * | | | + * +-------+ +-------+ +-------+ ... + * . . . + * . . . + * v . . + * +-------+ . . + * | | . + * | 7 6 5 4 3 2 1 0 | . + * | | . + * write . . + * . . + * v . + * +-------+ . + * | | + * | 7 6 5 4 3 2 1 0 | + * | | + * write+1 . + * . + * v + * +-------+ + * | | + * | 7 6 5 4 3 2 1 0 | + * | | + * write+2 + * + */ + + static FT_Error + tt_sbit_decoder_load_bit_aligned( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* limit, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error = SFNT_Err_Ok; + FT_Byte* line; + FT_Int bit_height, bit_width, pitch, width, height, h, nbits; + FT_Bitmap* bitmap; + FT_UShort rval; + + + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + + /* check that we can write the glyph into the bitmap */ + bitmap = decoder->bitmap; + bit_width = bitmap->width; + bit_height = bitmap->rows; + pitch = bitmap->pitch; + line = bitmap->buffer; + + width = decoder->metrics->width; + height = decoder->metrics->height; + + if ( x_pos < 0 || x_pos + width > bit_width || + y_pos < 0 || y_pos + height > bit_height ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( p + ( ( width * height + 7 ) >> 3 ) > limit ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + /* now do the blit */ + + /* adjust `line' to point to the first byte of the bitmap */ + line += y_pos * pitch + ( x_pos >> 3 ); + x_pos &= 7; + + /* the higher byte of `rval' is used as a buffer */ + rval = 0; + nbits = 0; + + for ( h = height; h > 0; h--, line += pitch ) + { + FT_Byte* write = line; + FT_Int w = width; + + + /* handle initial byte (in target bitmap) specially if necessary */ + if ( x_pos ) + { + w = ( width < 8 - x_pos ) ? width : 8 - x_pos; + + if ( h == height ) + { + rval = *p++; + nbits = x_pos; + } + else if ( nbits < w ) + { + if ( p < limit ) + rval |= *p++; + nbits += 8 - w; + } + else + { + rval >>= 8; + nbits -= w; + } + + *write++ |= ( ( rval >> nbits ) & 0xFF ) & + ( ~( 0xFF << w ) << ( 8 - w - x_pos ) ); + rval <<= 8; + + w = width - w; + } + + /* handle medial bytes */ + for ( ; w >= 8; w -= 8 ) + { + rval |= *p++; + *write++ |= ( rval >> nbits ) & 0xFF; + + rval <<= 8; + } + + /* handle final byte if necessary */ + if ( w > 0 ) + { + if ( nbits < w ) + { + if ( p < limit ) + rval |= *p++; + *write |= ( ( rval >> nbits ) & 0xFF ) & ( 0xFF00U >> w ); + nbits += 8 - w; + + rval <<= 8; + } + else + { + *write |= ( ( rval >> nbits ) & 0xFF ) & ( 0xFF00U >> w ); + nbits -= w; + } + } + } + + Exit: + return error; + } + + + static FT_Error + tt_sbit_decoder_load_compound( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* limit, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error = SFNT_Err_Ok; + FT_UInt num_components, nn; + + FT_Char horiBearingX = decoder->metrics->horiBearingX; + FT_Char horiBearingY = decoder->metrics->horiBearingY; + FT_Byte horiAdvance = decoder->metrics->horiAdvance; + FT_Char vertBearingX = decoder->metrics->vertBearingX; + FT_Char vertBearingY = decoder->metrics->vertBearingY; + FT_Byte vertAdvance = decoder->metrics->vertAdvance; + + + if ( p + 2 > limit ) + goto Fail; + + num_components = FT_NEXT_USHORT( p ); + if ( p + 4 * num_components > limit ) + goto Fail; + + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + + for ( nn = 0; nn < num_components; nn++ ) + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + FT_Byte dx = FT_NEXT_BYTE( p ); + FT_Byte dy = FT_NEXT_BYTE( p ); + + + /* NB: a recursive call */ + error = tt_sbit_decoder_load_image( decoder, gindex, + x_pos + dx, y_pos + dy ); + if ( error ) + break; + } + + decoder->metrics->horiBearingX = horiBearingX; + decoder->metrics->horiBearingY = horiBearingY; + decoder->metrics->horiAdvance = horiAdvance; + decoder->metrics->vertBearingX = vertBearingX; + decoder->metrics->vertBearingY = vertBearingY; + decoder->metrics->vertAdvance = vertAdvance; + decoder->metrics->width = (FT_UInt)decoder->bitmap->width; + decoder->metrics->height = (FT_UInt)decoder->bitmap->rows; + + Exit: + return error; + + Fail: + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + + static FT_Error + tt_sbit_decoder_load_bitmap( TT_SBitDecoder decoder, + FT_UInt glyph_format, + FT_ULong glyph_start, + FT_ULong glyph_size, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error; + FT_Stream stream = decoder->stream; + FT_Byte* p; + FT_Byte* p_limit; + FT_Byte* data; + + + /* seek into the EBDT table now */ + if ( glyph_start + glyph_size > decoder->ebdt_size ) + { + error = SFNT_Err_Invalid_Argument; + goto Exit; + } + + if ( FT_STREAM_SEEK( decoder->ebdt_start + glyph_start ) || + FT_FRAME_EXTRACT( glyph_size, data ) ) + goto Exit; + + p = data; + p_limit = p + glyph_size; + + /* read the data, depending on the glyph format */ + switch ( glyph_format ) + { + case 1: + case 2: + case 8: + error = tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 0 ); + break; + + case 6: + case 7: + case 9: + error = tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 1 ); + break; + + default: + error = SFNT_Err_Ok; + } + + if ( error ) + goto Fail; + + { + TT_SBitDecoder_LoadFunc loader; + + + switch ( glyph_format ) + { + case 1: + case 6: + loader = tt_sbit_decoder_load_byte_aligned; + break; + + case 2: + case 5: + case 7: + loader = tt_sbit_decoder_load_bit_aligned; + break; + + case 8: + if ( p + 1 > p_limit ) + goto Fail; + + p += 1; /* skip padding */ + /* fall-through */ + + case 9: + loader = tt_sbit_decoder_load_compound; + break; + + default: + goto Fail; + } + + error = loader( decoder, p, p_limit, x_pos, y_pos ); + } + + Fail: + FT_FRAME_RELEASE( data ); + + Exit: + return error; + } + + + static FT_Error + tt_sbit_decoder_load_image( TT_SBitDecoder decoder, + FT_UInt glyph_index, + FT_Int x_pos, + FT_Int y_pos ) + { + /* + * First, we find the correct strike range that applies to this + * glyph index. + */ + + FT_Byte* p = decoder->eblc_base + decoder->strike_index_array; + FT_Byte* p_limit = decoder->eblc_limit; + FT_ULong num_ranges = decoder->strike_index_count; + FT_UInt start, end, index_format, image_format; + FT_ULong image_start = 0, image_end = 0, image_offset; + + + for ( ; num_ranges > 0; num_ranges-- ) + { + start = FT_NEXT_USHORT( p ); + end = FT_NEXT_USHORT( p ); + + if ( glyph_index >= start && glyph_index <= end ) + goto FoundRange; + + p += 4; /* ignore index offset */ + } + goto NoBitmap; + + FoundRange: + image_offset = FT_NEXT_ULONG( p ); + + /* overflow check */ + if ( decoder->eblc_base + decoder->strike_index_array + image_offset < + decoder->eblc_base ) + goto Failure; + + p = decoder->eblc_base + decoder->strike_index_array + image_offset; + if ( p + 8 > p_limit ) + goto NoBitmap; + + /* now find the glyph's location and extend within the ebdt table */ + index_format = FT_NEXT_USHORT( p ); + image_format = FT_NEXT_USHORT( p ); + image_offset = FT_NEXT_ULONG ( p ); + + switch ( index_format ) + { + case 1: /* 4-byte offsets relative to `image_offset' */ + { + p += 4 * ( glyph_index - start ); + if ( p + 8 > p_limit ) + goto NoBitmap; + + image_start = FT_NEXT_ULONG( p ); + image_end = FT_NEXT_ULONG( p ); + + if ( image_start == image_end ) /* missing glyph */ + goto NoBitmap; + } + break; + + case 2: /* big metrics, constant image size */ + { + FT_ULong image_size; + + + if ( p + 12 > p_limit ) + goto NoBitmap; + + image_size = FT_NEXT_ULONG( p ); + + if ( tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 1 ) ) + goto NoBitmap; + + image_start = image_size * ( glyph_index - start ); + image_end = image_start + image_size; + } + break; + + case 3: /* 2-byte offsets relative to 'image_offset' */ + { + p += 2 * ( glyph_index - start ); + if ( p + 4 > p_limit ) + goto NoBitmap; + + image_start = FT_NEXT_USHORT( p ); + image_end = FT_NEXT_USHORT( p ); + + if ( image_start == image_end ) /* missing glyph */ + goto NoBitmap; + } + break; + + case 4: /* sparse glyph array with (glyph,offset) pairs */ + { + FT_ULong mm, num_glyphs; + + + if ( p + 4 > p_limit ) + goto NoBitmap; + + num_glyphs = FT_NEXT_ULONG( p ); + + /* overflow check */ + if ( p + ( num_glyphs + 1 ) * 4 < p ) + goto Failure; + + if ( p + ( num_glyphs + 1 ) * 4 > p_limit ) + goto NoBitmap; + + for ( mm = 0; mm < num_glyphs; mm++ ) + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + + + if ( gindex == glyph_index ) + { + image_start = FT_NEXT_USHORT( p ); + p += 2; + image_end = FT_PEEK_USHORT( p ); + break; + } + p += 2; + } + + if ( mm >= num_glyphs ) + goto NoBitmap; + } + break; + + case 5: /* constant metrics with sparse glyph codes */ + { + FT_ULong image_size, mm, num_glyphs; + + + if ( p + 16 > p_limit ) + goto NoBitmap; + + image_size = FT_NEXT_ULONG( p ); + + if ( tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 1 ) ) + goto NoBitmap; + + num_glyphs = FT_NEXT_ULONG( p ); + + /* overflow check */ + if ( p + 2 * num_glyphs < p ) + goto Failure; + + if ( p + 2 * num_glyphs > p_limit ) + goto NoBitmap; + + for ( mm = 0; mm < num_glyphs; mm++ ) + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + + + if ( gindex == glyph_index ) + break; + } + + if ( mm >= num_glyphs ) + goto NoBitmap; + + image_start = image_size * mm; + image_end = image_start + image_size; + } + break; + + default: + goto NoBitmap; + } + + if ( image_start > image_end ) + goto NoBitmap; + + image_end -= image_start; + image_start = image_offset + image_start; + + return tt_sbit_decoder_load_bitmap( decoder, + image_format, + image_start, + image_end, + x_pos, + y_pos ); + + Failure: + return SFNT_Err_Invalid_Table; + + NoBitmap: + return SFNT_Err_Invalid_Argument; + } + + + FT_LOCAL( FT_Error ) + tt_face_load_sbit_image( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *map, + TT_SBit_MetricsRec *metrics ) + { + TT_SBitDecoderRec decoder[1]; + FT_Error error; + + FT_UNUSED( load_flags ); + FT_UNUSED( stream ); + FT_UNUSED( map ); + + + error = tt_sbit_decoder_init( decoder, face, strike_index, metrics ); + if ( !error ) + { + error = tt_sbit_decoder_load_image( decoder, glyph_index, 0, 0 ); + tt_sbit_decoder_done( decoder ); + } + + return error; + } + +/* EOF */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.c b/uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.c new file mode 100644 index 000000000..3dbf9ea5e --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.c @@ -0,0 +1,2055 @@ +/***************************************************************************/ +/* */ +/* ftgrays.c */ +/* */ +/* A new `perfect' anti-aliasing renderer (body). */ +/* */ +/* Copyright 2000-2003, 2005-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file can be compiled without the rest of the FreeType engine, by */ + /* defining the _STANDALONE_ macro when compiling it. You also need to */ + /* put the files `ftgrays.h' and `ftimage.h' into the current */ + /* compilation directory. Typically, you could do something like */ + /* */ + /* - copy `src/smooth/ftgrays.c' (this file) to your current directory */ + /* */ + /* - copy `include/freetype/ftimage.h' and `src/smooth/ftgrays.h' to the */ + /* same directory */ + /* */ + /* - compile `ftgrays' with the _STANDALONE_ macro defined, as in */ + /* */ + /* cc -c -D_STANDALONE_ ftgrays.c */ + /* */ + /* The renderer can be initialized with a call to */ + /* `ft_gray_raster.raster_new'; an anti-aliased bitmap can be generated */ + /* with a call to `ft_gray_raster.raster_render'. */ + /* */ + /* See the comments and documentation in the file `ftimage.h' for more */ + /* details on how the raster works. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* This is a new anti-aliasing scan-converter for FreeType 2. The */ + /* algorithm used here is _very_ different from the one in the standard */ + /* `ftraster' module. Actually, `ftgrays' computes the _exact_ */ + /* coverage of the outline on each pixel cell. */ + /* */ + /* It is based on ideas that I initially found in Raph Levien's */ + /* excellent LibArt graphics library (see http://www.levien.com/libart */ + /* for more information, though the web pages do not tell anything */ + /* about the renderer; you'll have to dive into the source code to */ + /* understand how it works). */ + /* */ + /* Note, however, that this is a _very_ different implementation */ + /* compared to Raph's. Coverage information is stored in a very */ + /* different way, and I don't use sorted vector paths. Also, it doesn't */ + /* use floating point values. */ + /* */ + /* This renderer has the following advantages: */ + /* */ + /* - It doesn't need an intermediate bitmap. Instead, one can supply a */ + /* callback function that will be called by the renderer to draw gray */ + /* spans on any target surface. You can thus do direct composition on */ + /* any kind of bitmap, provided that you give the renderer the right */ + /* callback. */ + /* */ + /* - A perfect anti-aliaser, i.e., it computes the _exact_ coverage on */ + /* each pixel cell. */ + /* */ + /* - It performs a single pass on the outline (the `standard' FT2 */ + /* renderer makes two passes). */ + /* */ + /* - It can easily be modified to render to _any_ number of gray levels */ + /* cheaply. */ + /* */ + /* - For small (< 20) pixel sizes, it is faster than the standard */ + /* renderer. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_smooth + + +#ifdef _STANDALONE_ + + + /* define this to dump debugging information */ +/* #define FT_DEBUG_LEVEL_TRACE */ + + +#ifdef FT_DEBUG_LEVEL_TRACE +#include <stdio.h> +#include <stdarg.h> +#endif + +#include <stddef.h> +#include <string.h> +#include <setjmp.h> +#include <limits.h> +#define FT_UINT_MAX UINT_MAX +#define FT_INT_MAX INT_MAX + +#define ft_memset memset + +#define ft_setjmp setjmp +#define ft_longjmp longjmp +#define ft_jmp_buf jmp_buf + +typedef ptrdiff_t FT_PtrDist; + + +#define ErrRaster_Invalid_Mode -2 +#define ErrRaster_Invalid_Outline -1 +#define ErrRaster_Invalid_Argument -3 +#define ErrRaster_Memory_Overflow -4 + +#define FT_BEGIN_HEADER +#define FT_END_HEADER + +#include "ftimage.h" +#include "ftgrays.h" + + + /* This macro is used to indicate that a function parameter is unused. */ + /* Its purpose is simply to reduce compiler warnings. Note also that */ + /* simply defining it as `(void)x' doesn't avoid warnings with certain */ + /* ANSI compilers (e.g. LCC). */ +#define FT_UNUSED( x ) (x) = (x) + + + /* we only use level 5 & 7 tracing messages; cf. ftdebug.h */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + void + FT_Message( const char* fmt, + ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vfprintf( stderr, fmt, ap ); + va_end( ap ); + } + + /* we don't handle tracing levels in stand-alone mode; */ +#ifndef FT_TRACE5 +#define FT_TRACE5( varformat ) FT_Message varformat +#endif +#ifndef FT_TRACE7 +#define FT_TRACE7( varformat ) FT_Message varformat +#endif +#ifndef FT_ERROR +#define FT_ERROR( varformat ) FT_Message varformat +#endif + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define FT_TRACE5( x ) do { } while ( 0 ) /* nothing */ +#define FT_TRACE7( x ) do { } while ( 0 ) /* nothing */ +#define FT_ERROR( x ) do { } while ( 0 ) /* nothing */ + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +#define FT_DEFINE_OUTLINE_FUNCS( class_, \ + move_to_, line_to_, \ + conic_to_, cubic_to_, \ + shift_, delta_ ) \ + static const FT_Outline_Funcs class_ = \ + { \ + move_to_, \ + line_to_, \ + conic_to_, \ + cubic_to_, \ + shift_, \ + delta_ \ + }; + +#define FT_DEFINE_RASTER_FUNCS( class_, glyph_format_, \ + raster_new_, raster_reset_, \ + raster_set_mode_, raster_render_, \ + raster_done_ ) \ + const FT_Raster_Funcs class_ = \ + { \ + glyph_format_, \ + raster_new_, \ + raster_reset_, \ + raster_set_mode_, \ + raster_render_, \ + raster_done_ \ + }; + +#else /* !_STANDALONE_ */ + + +#include <freetype/ft2build.h> +#include "ftgrays.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_OUTLINE_H + +#include "ftsmerrs.h" + +#include "ftspic.h" + +#define ErrRaster_Invalid_Mode Smooth_Err_Cannot_Render_Glyph +#define ErrRaster_Invalid_Outline Smooth_Err_Invalid_Outline +#define ErrRaster_Memory_Overflow Smooth_Err_Out_Of_Memory +#define ErrRaster_Invalid_Argument Smooth_Err_Invalid_Argument + +#endif /* !_STANDALONE_ */ + +#ifndef FT_MEM_SET +#define FT_MEM_SET( d, s, c ) ft_memset( d, s, c ) +#endif + +#ifndef FT_MEM_ZERO +#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count ) +#endif + + /* as usual, for the speed hungry :-) */ + +#ifndef FT_STATIC_RASTER + +#define RAS_ARG PWorker worker +#define RAS_ARG_ PWorker worker, + +#define RAS_VAR worker +#define RAS_VAR_ worker, + +#else /* FT_STATIC_RASTER */ + +#define RAS_ARG /* empty */ +#define RAS_ARG_ /* empty */ +#define RAS_VAR /* empty */ +#define RAS_VAR_ /* empty */ + +#endif /* FT_STATIC_RASTER */ + + + /* must be at least 6 bits! */ +#define PIXEL_BITS 8 + +#define ONE_PIXEL ( 1L << PIXEL_BITS ) +#define PIXEL_MASK ( -1L << PIXEL_BITS ) +#define TRUNC( x ) ( (TCoord)( (x) >> PIXEL_BITS ) ) +#define SUBPIXELS( x ) ( (TPos)(x) << PIXEL_BITS ) +#define FLOOR( x ) ( (x) & -ONE_PIXEL ) +#define CEILING( x ) ( ( (x) + ONE_PIXEL - 1 ) & -ONE_PIXEL ) +#define ROUND( x ) ( ( (x) + ONE_PIXEL / 2 ) & -ONE_PIXEL ) + +#if PIXEL_BITS >= 6 +#define UPSCALE( x ) ( (x) << ( PIXEL_BITS - 6 ) ) +#define DOWNSCALE( x ) ( (x) >> ( PIXEL_BITS - 6 ) ) +#else +#define UPSCALE( x ) ( (x) >> ( 6 - PIXEL_BITS ) ) +#define DOWNSCALE( x ) ( (x) << ( 6 - PIXEL_BITS ) ) +#endif + + + /*************************************************************************/ + /* */ + /* TYPE DEFINITIONS */ + /* */ + + /* don't change the following types to FT_Int or FT_Pos, since we might */ + /* need to define them to "float" or "double" when experimenting with */ + /* new algorithms */ + + typedef long TCoord; /* integer scanline/pixel coordinate */ + typedef long TPos; /* sub-pixel coordinate */ + + /* determine the type used to store cell areas. This normally takes at */ + /* least PIXEL_BITS*2 + 1 bits. On 16-bit systems, we need to use */ + /* `long' instead of `int', otherwise bad things happen */ + +#if PIXEL_BITS <= 7 + + typedef int TArea; + +#else /* PIXEL_BITS >= 8 */ + + /* approximately determine the size of integers using an ANSI-C header */ +#if FT_UINT_MAX == 0xFFFFU + typedef long TArea; +#else + typedef int TArea; +#endif + +#endif /* PIXEL_BITS >= 8 */ + + + /* maximal number of gray spans in a call to the span callback */ +#define FT_MAX_GRAY_SPANS 32 + + + typedef struct TCell_* PCell; + + typedef struct TCell_ + { + TPos x; /* same with TWorker.ex */ + TCoord cover; /* same with TWorker.cover */ + TArea area; + PCell next; + + } TCell; + + + typedef struct TWorker_ + { + TCoord ex, ey; + TPos min_ex, max_ex; + TPos min_ey, max_ey; + TPos count_ex, count_ey; + + TArea area; + TCoord cover; + int invalid; + + PCell cells; + FT_PtrDist max_cells; + FT_PtrDist num_cells; + + TCoord cx, cy; + TPos x, y; + + TPos last_ey; + + FT_Vector bez_stack[32 * 3 + 1]; + int lev_stack[32]; + + FT_Outline outline; + FT_Bitmap target; + FT_BBox clip_box; + + FT_Span gray_spans[FT_MAX_GRAY_SPANS]; + int num_gray_spans; + + FT_Raster_Span_Func render_span; + void* render_span_data; + int span_y; + + int band_size; + int band_shoot; + + ft_jmp_buf jump_buffer; + + void* buffer; + long buffer_size; + + PCell* ycells; + TPos ycount; + + } TWorker, *PWorker; + + +#ifndef FT_STATIC_RASTER +#define ras (*worker) +#else + static TWorker ras; +#endif + + + typedef struct TRaster_ + { + void* buffer; + long buffer_size; + int band_size; + void* memory; + PWorker worker; + + } TRaster, *PRaster; + + + + /*************************************************************************/ + /* */ + /* Initialize the cells table. */ + /* */ + static void + gray_init_cells( RAS_ARG_ void* buffer, + long byte_size ) + { + ras.buffer = buffer; + ras.buffer_size = byte_size; + + ras.ycells = (PCell*) buffer; + ras.cells = NULL; + ras.max_cells = 0; + ras.num_cells = 0; + ras.area = 0; + ras.cover = 0; + ras.invalid = 1; + } + + + /*************************************************************************/ + /* */ + /* Compute the outline bounding box. */ + /* */ + static void + gray_compute_cbox( RAS_ARG ) + { + FT_Outline* outline = &ras.outline; + FT_Vector* vec = outline->points; + FT_Vector* limit = vec + outline->n_points; + + + if ( outline->n_points <= 0 ) + { + ras.min_ex = ras.max_ex = 0; + ras.min_ey = ras.max_ey = 0; + return; + } + + ras.min_ex = ras.max_ex = vec->x; + ras.min_ey = ras.max_ey = vec->y; + + vec++; + + for ( ; vec < limit; vec++ ) + { + TPos x = vec->x; + TPos y = vec->y; + + + if ( x < ras.min_ex ) ras.min_ex = x; + if ( x > ras.max_ex ) ras.max_ex = x; + if ( y < ras.min_ey ) ras.min_ey = y; + if ( y > ras.max_ey ) ras.max_ey = y; + } + + /* truncate the bounding box to integer pixels */ + ras.min_ex = ras.min_ex >> 6; + ras.min_ey = ras.min_ey >> 6; + ras.max_ex = ( ras.max_ex + 63 ) >> 6; + ras.max_ey = ( ras.max_ey + 63 ) >> 6; + } + + + /*************************************************************************/ + /* */ + /* Record the current cell in the table. */ + /* */ + static PCell + gray_find_cell( RAS_ARG ) + { + PCell *pcell, cell; + TPos x = ras.ex; + + + if ( x > ras.count_ex ) + x = ras.count_ex; + + pcell = &ras.ycells[ras.ey]; + for (;;) + { + cell = *pcell; + if ( cell == NULL || cell->x > x ) + break; + + if ( cell->x == x ) + goto Exit; + + pcell = &cell->next; + } + + if ( ras.num_cells >= ras.max_cells ) + ft_longjmp( ras.jump_buffer, 1 ); + + cell = ras.cells + ras.num_cells++; + cell->x = x; + cell->area = 0; + cell->cover = 0; + + cell->next = *pcell; + *pcell = cell; + + Exit: + return cell; + } + + + static void + gray_record_cell( RAS_ARG ) + { + if ( !ras.invalid && ( ras.area | ras.cover ) ) + { + PCell cell = gray_find_cell( RAS_VAR ); + + + cell->area += ras.area; + cell->cover += ras.cover; + } + } + + + /*************************************************************************/ + /* */ + /* Set the current cell to a new position. */ + /* */ + static void + gray_set_cell( RAS_ARG_ TCoord ex, + TCoord ey ) + { + /* Move the cell pointer to a new position. We set the `invalid' */ + /* flag to indicate that the cell isn't part of those we're interested */ + /* in during the render phase. This means that: */ + /* */ + /* . the new vertical position must be within min_ey..max_ey-1. */ + /* . the new horizontal position must be strictly less than max_ex */ + /* */ + /* Note that if a cell is to the left of the clipping region, it is */ + /* actually set to the (min_ex-1) horizontal position. */ + + /* All cells that are on the left of the clipping region go to the */ + /* min_ex - 1 horizontal position. */ + ey -= ras.min_ey; + + if ( ex > ras.max_ex ) + ex = ras.max_ex; + + ex -= ras.min_ex; + if ( ex < 0 ) + ex = -1; + + /* are we moving to a different cell ? */ + if ( ex != ras.ex || ey != ras.ey ) + { + /* record the current one if it is valid */ + if ( !ras.invalid ) + gray_record_cell( RAS_VAR ); + + ras.area = 0; + ras.cover = 0; + } + + ras.ex = ex; + ras.ey = ey; + ras.invalid = ( (unsigned)ey >= (unsigned)ras.count_ey || + ex >= ras.count_ex ); + } + + + /*************************************************************************/ + /* */ + /* Start a new contour at a given cell. */ + /* */ + static void + gray_start_cell( RAS_ARG_ TCoord ex, + TCoord ey ) + { + if ( ex > ras.max_ex ) + ex = (TCoord)( ras.max_ex ); + + if ( ex < ras.min_ex ) + ex = (TCoord)( ras.min_ex - 1 ); + + ras.area = 0; + ras.cover = 0; + ras.ex = ex - ras.min_ex; + ras.ey = ey - ras.min_ey; + ras.last_ey = SUBPIXELS( ey ); + ras.invalid = 0; + + gray_set_cell( RAS_VAR_ ex, ey ); + } + + + /*************************************************************************/ + /* */ + /* Render a scanline as one or more cells. */ + /* */ + static void + gray_render_scanline( RAS_ARG_ TCoord ey, + TPos x1, + TCoord y1, + TPos x2, + TCoord y2 ) + { + TCoord ex1, ex2, fx1, fx2, delta, mod, lift, rem; + long p, first, dx; + int incr; + + + dx = x2 - x1; + + ex1 = TRUNC( x1 ); + ex2 = TRUNC( x2 ); + fx1 = (TCoord)( x1 - SUBPIXELS( ex1 ) ); + fx2 = (TCoord)( x2 - SUBPIXELS( ex2 ) ); + + /* trivial case. Happens often */ + if ( y1 == y2 ) + { + gray_set_cell( RAS_VAR_ ex2, ey ); + return; + } + + /* everything is located in a single cell. That is easy! */ + /* */ + if ( ex1 == ex2 ) + { + delta = y2 - y1; + ras.area += (TArea)(( fx1 + fx2 ) * delta); + ras.cover += delta; + return; + } + + /* ok, we'll have to render a run of adjacent cells on the same */ + /* scanline... */ + /* */ + p = ( ONE_PIXEL - fx1 ) * ( y2 - y1 ); + first = ONE_PIXEL; + incr = 1; + + if ( dx < 0 ) + { + p = fx1 * ( y2 - y1 ); + first = 0; + incr = -1; + dx = -dx; + } + + delta = (TCoord)( p / dx ); + mod = (TCoord)( p % dx ); + if ( mod < 0 ) + { + delta--; + mod += (TCoord)dx; + } + + ras.area += (TArea)(( fx1 + first ) * delta); + ras.cover += delta; + + ex1 += incr; + gray_set_cell( RAS_VAR_ ex1, ey ); + y1 += delta; + + if ( ex1 != ex2 ) + { + p = ONE_PIXEL * ( y2 - y1 + delta ); + lift = (TCoord)( p / dx ); + rem = (TCoord)( p % dx ); + if ( rem < 0 ) + { + lift--; + rem += (TCoord)dx; + } + + mod -= (int)dx; + + while ( ex1 != ex2 ) + { + delta = lift; + mod += rem; + if ( mod >= 0 ) + { + mod -= (TCoord)dx; + delta++; + } + + ras.area += (TArea)(ONE_PIXEL * delta); + ras.cover += delta; + y1 += delta; + ex1 += incr; + gray_set_cell( RAS_VAR_ ex1, ey ); + } + } + + delta = y2 - y1; + ras.area += (TArea)(( fx2 + ONE_PIXEL - first ) * delta); + ras.cover += delta; + } + + + /*************************************************************************/ + /* */ + /* Render a given line as a series of scanlines. */ + /* */ + static void + gray_render_line( RAS_ARG_ TPos to_x, + TPos to_y ) + { + TCoord ey1, ey2, fy1, fy2, mod; + TPos dx, dy, x, x2; + long p, first; + int delta, rem, lift, incr; + + + ey1 = TRUNC( ras.last_ey ); + ey2 = TRUNC( to_y ); /* if (ey2 >= ras.max_ey) ey2 = ras.max_ey-1; */ + fy1 = (TCoord)( ras.y - ras.last_ey ); + fy2 = (TCoord)( to_y - SUBPIXELS( ey2 ) ); + + dx = to_x - ras.x; + dy = to_y - ras.y; + + /* XXX: we should do something about the trivial case where dx == 0, */ + /* as it happens very often! */ + + /* perform vertical clipping */ + { + TCoord min, max; + + + min = ey1; + max = ey2; + if ( ey1 > ey2 ) + { + min = ey2; + max = ey1; + } + if ( min >= ras.max_ey || max < ras.min_ey ) + goto End; + } + + /* everything is on a single scanline */ + if ( ey1 == ey2 ) + { + gray_render_scanline( RAS_VAR_ ey1, ras.x, fy1, to_x, fy2 ); + goto End; + } + + /* vertical line - avoid calling gray_render_scanline */ + incr = 1; + + if ( dx == 0 ) + { + TCoord ex = TRUNC( ras.x ); + TCoord two_fx = (TCoord)( ( ras.x - SUBPIXELS( ex ) ) << 1 ); + TArea area; + + + first = ONE_PIXEL; + if ( dy < 0 ) + { + first = 0; + incr = -1; + } + + delta = (int)( first - fy1 ); + ras.area += (TArea)two_fx * delta; + ras.cover += delta; + ey1 += incr; + + gray_set_cell( RAS_VAR_ ex, ey1 ); + + delta = (int)( first + first - ONE_PIXEL ); + area = (TArea)two_fx * delta; + while ( ey1 != ey2 ) + { + ras.area += area; + ras.cover += delta; + ey1 += incr; + + gray_set_cell( RAS_VAR_ ex, ey1 ); + } + + delta = (int)( fy2 - ONE_PIXEL + first ); + ras.area += (TArea)two_fx * delta; + ras.cover += delta; + + goto End; + } + + /* ok, we have to render several scanlines */ + p = ( ONE_PIXEL - fy1 ) * dx; + first = ONE_PIXEL; + incr = 1; + + if ( dy < 0 ) + { + p = fy1 * dx; + first = 0; + incr = -1; + dy = -dy; + } + + delta = (int)( p / dy ); + mod = (int)( p % dy ); + if ( mod < 0 ) + { + delta--; + mod += (TCoord)dy; + } + + x = ras.x + delta; + gray_render_scanline( RAS_VAR_ ey1, ras.x, fy1, x, (TCoord)first ); + + ey1 += incr; + gray_set_cell( RAS_VAR_ TRUNC( x ), ey1 ); + + if ( ey1 != ey2 ) + { + p = ONE_PIXEL * dx; + lift = (int)( p / dy ); + rem = (int)( p % dy ); + if ( rem < 0 ) + { + lift--; + rem += (int)dy; + } + mod -= (int)dy; + + while ( ey1 != ey2 ) + { + delta = lift; + mod += rem; + if ( mod >= 0 ) + { + mod -= (int)dy; + delta++; + } + + x2 = x + delta; + gray_render_scanline( RAS_VAR_ ey1, x, + (TCoord)( ONE_PIXEL - first ), x2, + (TCoord)first ); + x = x2; + + ey1 += incr; + gray_set_cell( RAS_VAR_ TRUNC( x ), ey1 ); + } + } + + gray_render_scanline( RAS_VAR_ ey1, x, + (TCoord)( ONE_PIXEL - first ), to_x, + fy2 ); + + End: + ras.x = to_x; + ras.y = to_y; + ras.last_ey = SUBPIXELS( ey2 ); + } + + + static void + gray_split_conic( FT_Vector* base ) + { + TPos a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + } + + + static void + gray_render_conic( RAS_ARG_ const FT_Vector* control, + const FT_Vector* to ) + { + TPos dx, dy; + int top, level; + int* levels; + FT_Vector* arc; + + + arc = ras.bez_stack; + arc[0].x = UPSCALE( to->x ); + arc[0].y = UPSCALE( to->y ); + arc[1].x = UPSCALE( control->x ); + arc[1].y = UPSCALE( control->y ); + arc[2].x = ras.x; + arc[2].y = ras.y; + + dx = FT_ABS( arc[2].x + arc[0].x - 2 * arc[1].x ); + dy = FT_ABS( arc[2].y + arc[0].y - 2 * arc[1].y ); + if ( dx < dy ) + dx = dy; + + level = 0; + while ( dx > ONE_PIXEL / 6 ) + { + dx >>= 2; + level++; + } + + levels = ras.lev_stack; + levels[0] = level; + top = 0; + + do + { + level = levels[top]; + if ( level > 1 ) + { + /* check that the arc crosses the current band */ + TPos min, max, y; + + + min = max = arc[0].y; + + y = arc[1].y; + if ( y < min ) min = y; + if ( y > max ) max = y; + + y = arc[2].y; + if ( y < min ) min = y; + if ( y > max ) max = y; + + if ( TRUNC( min ) >= ras.max_ey || TRUNC( max ) < ras.min_ey ) + goto Draw; + + gray_split_conic( arc ); + arc += 2; + top++; + levels[top] = levels[top - 1] = level - 1; + continue; + } + + Draw: + gray_render_line( RAS_VAR_ arc[0].x, arc[0].y ); + top--; + arc -= 2; + + } while ( top >= 0 ); + } + + + static void + gray_split_cubic( FT_Vector* base ) + { + TPos a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c ) / 2; + base[5].x = b = ( base[3].x + d ) / 2; + c = ( c + d ) / 2; + base[2].x = a = ( a + c ) / 2; + base[4].x = b = ( b + c ) / 2; + base[3].x = ( a + b ) / 2; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c ) / 2; + base[5].y = b = ( base[3].y + d ) / 2; + c = ( c + d ) / 2; + base[2].y = a = ( a + c ) / 2; + base[4].y = b = ( b + c ) / 2; + base[3].y = ( a + b ) / 2; + } + + + static void + gray_render_cubic( RAS_ARG_ const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to ) + { + FT_Vector* arc; + + + arc = ras.bez_stack; + arc[0].x = UPSCALE( to->x ); + arc[0].y = UPSCALE( to->y ); + arc[1].x = UPSCALE( control2->x ); + arc[1].y = UPSCALE( control2->y ); + arc[2].x = UPSCALE( control1->x ); + arc[2].y = UPSCALE( control1->y ); + arc[3].x = ras.x; + arc[3].y = ras.y; + + for (;;) + { + /* Check that the arc crosses the current band. */ + TPos min, max, y; + + + min = max = arc[0].y; + + y = arc[1].y; + if ( y < min ) + min = y; + if ( y > max ) + max = y; + + y = arc[2].y; + if ( y < min ) + min = y; + if ( y > max ) + max = y; + + y = arc[3].y; + if ( y < min ) + min = y; + if ( y > max ) + max = y; + + if ( TRUNC( min ) >= ras.max_ey || TRUNC( max ) < ras.min_ey ) + goto Draw; + + /* Decide whether to split or draw. See `Rapid Termination */ + /* Evaluation for Recursive Subdivision of Bezier Curves' by Thomas */ + /* F. Hain, at */ + /* http://www.cis.southalabama.edu/~hain/general/Publications/Bezier/Camera-ready%20CISST02%202.pdf */ + + { + TPos dx, dy, dx_, dy_; + TPos dx1, dy1, dx2, dy2; + TPos L, s, s_limit; + + + /* dx and dy are x and y components of the P0-P3 chord vector. */ + dx = arc[3].x - arc[0].x; + dy = arc[3].y - arc[0].y; + + /* L is an (under)estimate of the Euclidean distance P0-P3. */ + /* */ + /* If dx >= dy, then r = sqrt(dx^2 + dy^2) can be overestimated */ + /* with least maximum error by */ + /* */ + /* r_upperbound = dx + (sqrt(2) - 1) * dy , */ + /* */ + /* where sqrt(2) - 1 can be (over)estimated by 107/256, giving an */ + /* error of no more than 8.4%. */ + /* */ + /* Similarly, some elementary calculus shows that r can be */ + /* underestimated with least maximum error by */ + /* */ + /* r_lowerbound = sqrt(2 + sqrt(2)) / 2 * dx */ + /* + sqrt(2 - sqrt(2)) / 2 * dy . */ + /* */ + /* 236/256 and 97/256 are (under)estimates of the two algebraic */ + /* numbers, giving an error of no more than 8.1%. */ + + dx_ = FT_ABS( dx ); + dy_ = FT_ABS( dy ); + + /* This is the same as */ + /* */ + /* L = ( 236 * FT_MAX( dx_, dy_ ) */ + /* + 97 * FT_MIN( dx_, dy_ ) ) >> 8; */ + L = ( dx_ > dy_ ? 236 * dx_ + 97 * dy_ + : 97 * dx_ + 236 * dy_ ) >> 8; + + /* Avoid possible arithmetic overflow below by splitting. */ + if ( L > 32767 ) + goto Split; + + /* Max deviation may be as much as (s/L) * 3/4 (if Hain's v = 1). */ + s_limit = L * (TPos)( ONE_PIXEL / 6 ); + + /* s is L * the perpendicular distance from P1 to the line P0-P3. */ + dx1 = arc[1].x - arc[0].x; + dy1 = arc[1].y - arc[0].y; + s = FT_ABS( dy * dx1 - dx * dy1 ); + + if ( s > s_limit ) + goto Split; + + /* s is L * the perpendicular distance from P2 to the line P0-P3. */ + dx2 = arc[2].x - arc[0].x; + dy2 = arc[2].y - arc[0].y; + s = FT_ABS( dy * dx2 - dx * dy2 ); + + if ( s > s_limit ) + goto Split; + + /* If P1 or P2 is outside P0-P3, split the curve. */ + if ( dy * dy1 + dx * dx1 < 0 || + dy * dy2 + dx * dx2 < 0 || + dy * (arc[3].y - arc[1].y) + dx * (arc[3].x - arc[1].x) < 0 || + dy * (arc[3].y - arc[2].y) + dx * (arc[3].x - arc[2].x) < 0 ) + goto Split; + + /* No reason to split. */ + goto Draw; + } + + Split: + gray_split_cubic( arc ); + arc += 3; + continue; + + Draw: + gray_render_line( RAS_VAR_ arc[0].x, arc[0].y ); + + if ( arc == ras.bez_stack ) + return; + + arc -= 3; + } + } + + + static int + gray_move_to( const FT_Vector* to, + PWorker worker ) + { + TPos x, y; + + + /* record current cell, if any */ + gray_record_cell( RAS_VAR ); + + /* start to a new position */ + x = UPSCALE( to->x ); + y = UPSCALE( to->y ); + + gray_start_cell( RAS_VAR_ TRUNC( x ), TRUNC( y ) ); + + worker->x = x; + worker->y = y; + return 0; + } + + + static int + gray_line_to( const FT_Vector* to, + PWorker worker ) + { + gray_render_line( RAS_VAR_ UPSCALE( to->x ), UPSCALE( to->y ) ); + return 0; + } + + + static int + gray_conic_to( const FT_Vector* control, + const FT_Vector* to, + PWorker worker ) + { + gray_render_conic( RAS_VAR_ control, to ); + return 0; + } + + + static int + gray_cubic_to( const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to, + PWorker worker ) + { + gray_render_cubic( RAS_VAR_ control1, control2, to ); + return 0; + } + + + static void + gray_render_span( int y, + int count, + const FT_Span* spans, + PWorker worker ) + { + unsigned char* p; + FT_Bitmap* map = &worker->target; + + + /* first of all, compute the scanline offset */ + p = (unsigned char*)map->buffer - y * map->pitch; + if ( map->pitch >= 0 ) + p += (unsigned)( ( map->rows - 1 ) * map->pitch ); + + for ( ; count > 0; count--, spans++ ) + { + unsigned char coverage = spans->coverage; + + + if ( coverage ) + { + /* For small-spans it is faster to do it by ourselves than + * calling `memset'. This is mainly due to the cost of the + * function call. + */ + if ( spans->len >= 8 ) + FT_MEM_SET( p + spans->x, (unsigned char)coverage, spans->len ); + else + { + unsigned char* q = p + spans->x; + + + switch ( spans->len ) + { + case 7: *q++ = (unsigned char)coverage; + case 6: *q++ = (unsigned char)coverage; + case 5: *q++ = (unsigned char)coverage; + case 4: *q++ = (unsigned char)coverage; + case 3: *q++ = (unsigned char)coverage; + case 2: *q++ = (unsigned char)coverage; + case 1: *q = (unsigned char)coverage; + default: + ; + } + } + } + } + } + + + static void + gray_hline( RAS_ARG_ TCoord x, + TCoord y, + TPos area, + TCoord acount ) + { + FT_Span* span; + int count; + int coverage; + + + /* compute the coverage line's coverage, depending on the */ + /* outline fill rule */ + /* */ + /* the coverage percentage is area/(PIXEL_BITS*PIXEL_BITS*2) */ + /* */ + coverage = (int)( area >> ( PIXEL_BITS * 2 + 1 - 8 ) ); + /* use range 0..256 */ + if ( coverage < 0 ) + coverage = -coverage; + + if ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) + { + coverage &= 511; + + if ( coverage > 256 ) + coverage = 512 - coverage; + else if ( coverage == 256 ) + coverage = 255; + } + else + { + /* normal non-zero winding rule */ + if ( coverage >= 256 ) + coverage = 255; + } + + y += (TCoord)ras.min_ey; + x += (TCoord)ras.min_ex; + + /* FT_Span.x is a 16-bit short, so limit our coordinates appropriately */ + if ( x >= 32767 ) + x = 32767; + + /* FT_Span.y is an integer, so limit our coordinates appropriately */ + if ( y >= FT_INT_MAX ) + y = FT_INT_MAX; + + if ( coverage ) + { + /* see whether we can add this span to the current list */ + count = ras.num_gray_spans; + span = ras.gray_spans + count - 1; + if ( count > 0 && + ras.span_y == y && + (int)span->x + span->len == (int)x && + span->coverage == coverage ) + { + span->len = (unsigned short)( span->len + acount ); + return; + } + + if ( ras.span_y != y || count >= FT_MAX_GRAY_SPANS ) + { + if ( ras.render_span && count > 0 ) + ras.render_span( ras.span_y, count, ras.gray_spans, + ras.render_span_data ); + +#ifdef FT_DEBUG_LEVEL_TRACE + + if ( count > 0 ) + { + int n; + + + FT_TRACE7(( "y = %3d ", ras.span_y )); + span = ras.gray_spans; + for ( n = 0; n < count; n++, span++ ) + FT_TRACE7(( "[%d..%d]:%02x ", + span->x, span->x + span->len - 1, span->coverage )); + FT_TRACE7(( "\n" )); + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + ras.num_gray_spans = 0; + ras.span_y = (int)y; + + count = 0; + span = ras.gray_spans; + } + else + span++; + + /* add a gray span to the current list */ + span->x = (short)x; + span->len = (unsigned short)acount; + span->coverage = (unsigned char)coverage; + + ras.num_gray_spans++; + } + } + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* to be called while in the debugger -- */ + /* this function causes a compiler warning since it is unused otherwise */ + static void + gray_dump_cells( RAS_ARG ) + { + int yindex; + + + for ( yindex = 0; yindex < ras.ycount; yindex++ ) + { + PCell cell; + + + printf( "%3d:", yindex ); + + for ( cell = ras.ycells[yindex]; cell != NULL; cell = cell->next ) + printf( " (%3ld, c:%4ld, a:%6d)", cell->x, cell->cover, cell->area ); + printf( "\n" ); + } + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + static void + gray_sweep( RAS_ARG_ const FT_Bitmap* target ) + { + int yindex; + + FT_UNUSED( target ); + + + if ( ras.num_cells == 0 ) + return; + + ras.num_gray_spans = 0; + + FT_TRACE7(( "gray_sweep: start\n" )); + + for ( yindex = 0; yindex < ras.ycount; yindex++ ) + { + PCell cell = ras.ycells[yindex]; + TCoord cover = 0; + TCoord x = 0; + + + for ( ; cell != NULL; cell = cell->next ) + { + TPos area; + + + if ( cell->x > x && cover != 0 ) + gray_hline( RAS_VAR_ x, yindex, cover * ( ONE_PIXEL * 2 ), + cell->x - x ); + + cover += cell->cover; + area = cover * ( ONE_PIXEL * 2 ) - cell->area; + + if ( area != 0 && cell->x >= 0 ) + gray_hline( RAS_VAR_ cell->x, yindex, area, 1 ); + + x = cell->x + 1; + } + + if ( cover != 0 ) + gray_hline( RAS_VAR_ x, yindex, cover * ( ONE_PIXEL * 2 ), + ras.count_ex - x ); + } + + if ( ras.render_span && ras.num_gray_spans > 0 ) + ras.render_span( ras.span_y, ras.num_gray_spans, + ras.gray_spans, ras.render_span_data ); + + FT_TRACE7(( "gray_sweep: end\n" )); + } + + +#ifdef _STANDALONE_ + + /*************************************************************************/ + /* */ + /* The following function should only compile in stand-alone mode, */ + /* i.e., when building this component without the rest of FreeType. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Decompose */ + /* */ + /* <Description> */ + /* Walk over an outline's structure to decompose it into individual */ + /* segments and Bézier arcs. This function is also able to emit */ + /* `move to' and `close to' operations to indicate the start and end */ + /* of new contours in the outline. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source target. */ + /* */ + /* func_interface :: A table of `emitters', i.e., function pointers */ + /* called during decomposition to indicate path */ + /* operations. */ + /* */ + /* <InOut> */ + /* user :: A typeless pointer which is passed to each */ + /* emitter during the decomposition. It can be */ + /* used to store the state during the */ + /* decomposition. */ + /* */ + /* <Return> */ + /* Error code. 0 means success. */ + /* */ + static int + FT_Outline_Decompose( const FT_Outline* outline, + const FT_Outline_Funcs* func_interface, + void* user ) + { +#undef SCALED +#define SCALED( x ) ( ( (x) << shift ) - delta ) + + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* point; + FT_Vector* limit; + char* tags; + + int error; + + int n; /* index of contour in outline */ + int first; /* index of first point in contour */ + char tag; /* current point's state */ + + int shift; + TPos delta; + + + if ( !outline || !func_interface ) + return ErrRaster_Invalid_Argument; + + shift = func_interface->shift; + delta = func_interface->delta; + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + int last; /* index of last point in contour */ + + + FT_TRACE5(( "FT_Outline_Decompose: Outline %d\n", n )); + + last = outline->contours[n]; + if ( last < 0 ) + goto Invalid_Outline; + limit = outline->points + last; + + v_start = outline->points[first]; + v_start.x = SCALED( v_start.x ); + v_start.y = SCALED( v_start.y ); + + v_last = outline->points[last]; + v_last.x = SCALED( v_last.x ); + v_last.y = SCALED( v_last.y ); + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* first point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + + v_last = v_start; + } + point--; + tags--; + } + + FT_TRACE5(( " move to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->move_to( &v_start, user ); + if ( error ) + goto Exit; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " line to (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0 )); + error = func_interface->line_to( &vec, user ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED( point->x ); + v_control.y = SCALED( point->y ); + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + if ( tag == FT_CURVE_TAG_ON ) + { + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + vec.x ) / 2; + v_middle.y = ( v_control.y + vec.y ) / 2; + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_middle.x / 64.0, v_middle.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_middle, user ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_start, user ); + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + FT_Vector vec1, vec2; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1.x = SCALED( point[-2].x ); + vec1.y = SCALED( point[-2].y ); + + vec2.x = SCALED( point[-1].x ); + vec2.y = SCALED( point[-1].y ); + + if ( point <= limit ) + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &v_start, user ); + goto Close; + } + } + } + + /* close the contour with a line segment */ + FT_TRACE5(( " line to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->line_to( &v_start, user ); + + Close: + if ( error ) + goto Exit; + + first = last + 1; + } + + FT_TRACE5(( "FT_Outline_Decompose: Done\n", n )); + return 0; + + Exit: + FT_TRACE5(( "FT_Outline_Decompose: Error %d\n", error )); + return error; + + Invalid_Outline: + return ErrRaster_Invalid_Outline; + } + +#endif /* _STANDALONE_ */ + + + typedef struct TBand_ + { + TPos min, max; + + } TBand; + + FT_DEFINE_OUTLINE_FUNCS(func_interface, + (FT_Outline_MoveTo_Func) gray_move_to, + (FT_Outline_LineTo_Func) gray_line_to, + (FT_Outline_ConicTo_Func)gray_conic_to, + (FT_Outline_CubicTo_Func)gray_cubic_to, + 0, + 0 + ) + + static int + gray_convert_glyph_inner( RAS_ARG ) + { + + volatile int error = 0; + +#ifdef FT_CONFIG_OPTION_PIC + FT_Outline_Funcs func_interface; + Init_Class_func_interface(&func_interface); +#endif + + if ( ft_setjmp( ras.jump_buffer ) == 0 ) + { + error = FT_Outline_Decompose( &ras.outline, &func_interface, &ras ); + gray_record_cell( RAS_VAR ); + } + else + error = ErrRaster_Memory_Overflow; + + return error; + } + + + static int + gray_convert_glyph( RAS_ARG ) + { + TBand bands[40]; + TBand* volatile band; + int volatile n, num_bands; + TPos volatile min, max, max_y; + FT_BBox* clip; + + + /* Set up state in the raster object */ + gray_compute_cbox( RAS_VAR ); + + /* clip to target bitmap, exit if nothing to do */ + clip = &ras.clip_box; + + if ( ras.max_ex <= clip->xMin || ras.min_ex >= clip->xMax || + ras.max_ey <= clip->yMin || ras.min_ey >= clip->yMax ) + return 0; + + if ( ras.min_ex < clip->xMin ) ras.min_ex = clip->xMin; + if ( ras.min_ey < clip->yMin ) ras.min_ey = clip->yMin; + + if ( ras.max_ex > clip->xMax ) ras.max_ex = clip->xMax; + if ( ras.max_ey > clip->yMax ) ras.max_ey = clip->yMax; + + ras.count_ex = ras.max_ex - ras.min_ex; + ras.count_ey = ras.max_ey - ras.min_ey; + + /* set up vertical bands */ + num_bands = (int)( ( ras.max_ey - ras.min_ey ) / ras.band_size ); + if ( num_bands == 0 ) + num_bands = 1; + if ( num_bands >= 39 ) + num_bands = 39; + + ras.band_shoot = 0; + + min = ras.min_ey; + max_y = ras.max_ey; + + for ( n = 0; n < num_bands; n++, min = max ) + { + max = min + ras.band_size; + if ( n == num_bands - 1 || max > max_y ) + max = max_y; + + bands[0].min = min; + bands[0].max = max; + band = bands; + + while ( band >= bands ) + { + TPos bottom, top, middle; + int error; + + { + PCell cells_max; + int yindex; + long cell_start, cell_end, cell_mod; + + + ras.ycells = (PCell*)ras.buffer; + ras.ycount = band->max - band->min; + + cell_start = sizeof ( PCell ) * ras.ycount; + cell_mod = cell_start % sizeof ( TCell ); + if ( cell_mod > 0 ) + cell_start += sizeof ( TCell ) - cell_mod; + + cell_end = ras.buffer_size; + cell_end -= cell_end % sizeof( TCell ); + + cells_max = (PCell)( (char*)ras.buffer + cell_end ); + ras.cells = (PCell)( (char*)ras.buffer + cell_start ); + if ( ras.cells >= cells_max ) + goto ReduceBands; + + ras.max_cells = cells_max - ras.cells; + if ( ras.max_cells < 2 ) + goto ReduceBands; + + for ( yindex = 0; yindex < ras.ycount; yindex++ ) + ras.ycells[yindex] = NULL; + } + + ras.num_cells = 0; + ras.invalid = 1; + ras.min_ey = band->min; + ras.max_ey = band->max; + ras.count_ey = band->max - band->min; + + error = gray_convert_glyph_inner( RAS_VAR ); + + if ( !error ) + { + gray_sweep( RAS_VAR_ &ras.target ); + band--; + continue; + } + else if ( error != ErrRaster_Memory_Overflow ) + return 1; + + ReduceBands: + /* render pool overflow; we will reduce the render band by half */ + bottom = band->min; + top = band->max; + middle = bottom + ( ( top - bottom ) >> 1 ); + + /* This is too complex for a single scanline; there must */ + /* be some problems. */ + if ( middle == bottom ) + { +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE7(( "gray_convert_glyph: rotten glyph\n" )); +#endif + return 1; + } + + if ( bottom-top >= ras.band_size ) + ras.band_shoot++; + + band[1].min = bottom; + band[1].max = middle; + band[0].min = middle; + band[0].max = top; + band++; + } + } + + if ( ras.band_shoot > 8 && ras.band_size > 16 ) + ras.band_size = ras.band_size / 2; + + return 0; + } + + + static int + gray_raster_render( PRaster raster, + const FT_Raster_Params* params ) + { + const FT_Outline* outline = (const FT_Outline*)params->source; + const FT_Bitmap* target_map = params->target; + PWorker worker; + + + if ( !raster || !raster->buffer || !raster->buffer_size ) + return ErrRaster_Invalid_Argument; + + if ( !outline ) + return ErrRaster_Invalid_Outline; + + /* return immediately if the outline is empty */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + return 0; + + if ( !outline->contours || !outline->points ) + return ErrRaster_Invalid_Outline; + + if ( outline->n_points != + outline->contours[outline->n_contours - 1] + 1 ) + return ErrRaster_Invalid_Outline; + + worker = raster->worker; + + /* if direct mode is not set, we must have a target bitmap */ + if ( !( params->flags & FT_RASTER_FLAG_DIRECT ) ) + { + if ( !target_map ) + return ErrRaster_Invalid_Argument; + + /* nothing to do */ + if ( !target_map->width || !target_map->rows ) + return 0; + + if ( !target_map->buffer ) + return ErrRaster_Invalid_Argument; + } + + /* this version does not support monochrome rendering */ + if ( !( params->flags & FT_RASTER_FLAG_AA ) ) + return ErrRaster_Invalid_Mode; + + /* compute clipping box */ + if ( !( params->flags & FT_RASTER_FLAG_DIRECT ) ) + { + /* compute clip box from target pixmap */ + ras.clip_box.xMin = 0; + ras.clip_box.yMin = 0; + ras.clip_box.xMax = target_map->width; + ras.clip_box.yMax = target_map->rows; + } + else if ( params->flags & FT_RASTER_FLAG_CLIP ) + ras.clip_box = params->clip_box; + else + { + ras.clip_box.xMin = -32768L; + ras.clip_box.yMin = -32768L; + ras.clip_box.xMax = 32767L; + ras.clip_box.yMax = 32767L; + } + + gray_init_cells( RAS_VAR_ raster->buffer, raster->buffer_size ); + + ras.outline = *outline; + ras.num_cells = 0; + ras.invalid = 1; + ras.band_size = raster->band_size; + ras.num_gray_spans = 0; + + if ( params->flags & FT_RASTER_FLAG_DIRECT ) + { + ras.render_span = (FT_Raster_Span_Func)params->gray_spans; + ras.render_span_data = params->user; + } + else + { + ras.target = *target_map; + ras.render_span = (FT_Raster_Span_Func)gray_render_span; + ras.render_span_data = &ras; + } + + return gray_convert_glyph( RAS_VAR ); + } + + + /**** RASTER OBJECT CREATION: In stand-alone mode, we simply use *****/ + /**** a static object. *****/ + +#ifdef _STANDALONE_ + + static int + gray_raster_new( void* memory, + FT_Raster* araster ) + { + static TRaster the_raster; + + FT_UNUSED( memory ); + + + *araster = (FT_Raster)&the_raster; + FT_MEM_ZERO( &the_raster, sizeof ( the_raster ) ); + + return 0; + } + + + static void + gray_raster_done( FT_Raster raster ) + { + /* nothing */ + FT_UNUSED( raster ); + } + +#else /* !_STANDALONE_ */ + + static int + gray_raster_new( FT_Memory memory, + FT_Raster* araster ) + { + FT_Error error; + PRaster raster = NULL; + + + *araster = 0; + if ( !FT_ALLOC( raster, sizeof ( TRaster ) ) ) + { + raster->memory = memory; + *araster = (FT_Raster)raster; + } + + return error; + } + + + static void + gray_raster_done( FT_Raster raster ) + { + FT_Memory memory = (FT_Memory)((PRaster)raster)->memory; + + + FT_FREE( raster ); + } + +#endif /* !_STANDALONE_ */ + + + static void + gray_raster_reset( FT_Raster raster, + char* pool_base, + long pool_size ) + { + PRaster rast = (PRaster)raster; + + + if ( raster ) + { + if ( pool_base && pool_size >= (long)sizeof ( TWorker ) + 2048 ) + { + PWorker worker = (PWorker)pool_base; + + + rast->worker = worker; + rast->buffer = pool_base + + ( ( sizeof ( TWorker ) + sizeof ( TCell ) - 1 ) & + ~( sizeof ( TCell ) - 1 ) ); + rast->buffer_size = (long)( ( pool_base + pool_size ) - + (char*)rast->buffer ) & + ~( sizeof ( TCell ) - 1 ); + rast->band_size = (int)( rast->buffer_size / + ( sizeof ( TCell ) * 8 ) ); + } + else + { + rast->buffer = NULL; + rast->buffer_size = 0; + rast->worker = NULL; + } + } + } + + + FT_DEFINE_RASTER_FUNCS(ft_grays_raster, + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Raster_New_Func) gray_raster_new, + (FT_Raster_Reset_Func) gray_raster_reset, + (FT_Raster_Set_Mode_Func)0, + (FT_Raster_Render_Func) gray_raster_render, + (FT_Raster_Done_Func) gray_raster_done + ) + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.h b/uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.h new file mode 100644 index 000000000..6fb28b53c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftgrays.h @@ -0,0 +1,58 @@ +/***************************************************************************/ +/* */ +/* ftgrays.h */ +/* */ +/* FreeType smooth renderer declaration */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGRAYS_H__ +#define __FTGRAYS_H__ + +#ifdef __cplusplus + extern "C" { +#endif + + +#ifdef _STANDALONE_ +#include "ftimage.h" +#else +#include <freetype/ft2build.h> +#include FT_CONFIG_CONFIG_H /* for FT_CONFIG_OPTION_PIC */ +#include FT_IMAGE_H +#endif + + + /*************************************************************************/ + /* */ + /* To make ftgrays.h independent from configuration files we check */ + /* whether FT_EXPORT_VAR has been defined already. */ + /* */ + /* On some systems and compilers (Win32 mostly), an extra keyword is */ + /* necessary to compile the library as a DLL. */ + /* */ +#ifndef FT_EXPORT_VAR +#define FT_EXPORT_VAR( x ) extern x +#endif + + FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_grays_raster; + + +#ifdef __cplusplus + } +#endif + +#endif /* __FTGRAYS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftsmerrs.h b/uppsrc/plugin/FT_fontsys/src/smooth/ftsmerrs.h new file mode 100644 index 000000000..0c2a2ecd9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftsmerrs.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* ftsmerrs.h */ +/* */ +/* smooth renderer error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the smooth renderer error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __FTSMERRS_H__ +#define __FTSMERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX Smooth_Err_ +#define FT_ERR_BASE FT_Mod_Err_Smooth + +#include FT_ERRORS_H + +#endif /* __FTSMERRS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.c b/uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.c new file mode 100644 index 000000000..519b53972 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.c @@ -0,0 +1,504 @@ +/***************************************************************************/ +/* */ +/* ftsmooth.c */ +/* */ +/* Anti-aliasing renderer interface (body). */ +/* */ +/* Copyright 2000-2006, 2009-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_OUTLINE_H +#include "ftsmooth.h" +#include "ftgrays.h" +#include "ftspic.h" + +#include "ftsmerrs.h" + + + /* initialize renderer -- init its raster */ + static FT_Error + ft_smooth_init( FT_Renderer render ) + { + FT_Library library = FT_MODULE_LIBRARY( render ); + + + render->clazz->raster_class->raster_reset( render->raster, + library->raster_pool, + library->raster_pool_size ); + + return 0; + } + + + /* sets render-specific mode */ + static FT_Error + ft_smooth_set_mode( FT_Renderer render, + FT_ULong mode_tag, + FT_Pointer data ) + { + /* we simply pass it to the raster */ + return render->clazz->raster_class->raster_set_mode( render->raster, + mode_tag, + data ); + } + + /* transform a given glyph image */ + static FT_Error + ft_smooth_transform( FT_Renderer render, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_Error error = Smooth_Err_Ok; + + + if ( slot->format != render->glyph_format ) + { + error = Smooth_Err_Invalid_Argument; + goto Exit; + } + + if ( matrix ) + FT_Outline_Transform( &slot->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &slot->outline, delta->x, delta->y ); + + Exit: + return error; + } + + + /* return the glyph's control box */ + static void + ft_smooth_get_cbox( FT_Renderer render, + FT_GlyphSlot slot, + FT_BBox* cbox ) + { + FT_MEM_ZERO( cbox, sizeof ( *cbox ) ); + + if ( slot->format == render->glyph_format ) + FT_Outline_Get_CBox( &slot->outline, cbox ); + } + + + /* convert a slot's glyph image into a bitmap */ + static FT_Error + ft_smooth_render_generic( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin, + FT_Render_Mode required_mode ) + { + FT_Error error; + FT_Outline* outline = NULL; + FT_BBox cbox; + FT_UInt width, height, pitch; +#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + FT_UInt height_org, width_org; +#endif + FT_Bitmap* bitmap; + FT_Memory memory; + FT_Int hmul = mode == FT_RENDER_MODE_LCD; + FT_Int vmul = mode == FT_RENDER_MODE_LCD_V; + FT_Pos x_shift, y_shift, x_left, y_top; + + FT_Raster_Params params; + + + /* check glyph image format */ + if ( slot->format != render->glyph_format ) + { + error = Smooth_Err_Invalid_Argument; + goto Exit; + } + + /* check mode */ + if ( mode != required_mode ) + return Smooth_Err_Cannot_Render_Glyph; + + outline = &slot->outline; + + /* translate the outline to the new origin if needed */ + if ( origin ) + FT_Outline_Translate( outline, origin->x, origin->y ); + + /* compute the control box, and grid fit it */ + FT_Outline_Get_CBox( outline, &cbox ); + + cbox.xMin = FT_PIX_FLOOR( cbox.xMin ); + cbox.yMin = FT_PIX_FLOOR( cbox.yMin ); + cbox.xMax = FT_PIX_CEIL( cbox.xMax ); + cbox.yMax = FT_PIX_CEIL( cbox.yMax ); + + if ( cbox.xMin < 0 && cbox.xMax > FT_INT_MAX + cbox.xMin ) + { + FT_ERROR(( "ft_smooth_render_generic: glyph too large:" + " xMin = %d, xMax = %d\n", + cbox.xMin >> 6, cbox.xMax >> 6 )); + return Smooth_Err_Raster_Overflow; + } + else + width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 ); + + if ( cbox.yMin < 0 && cbox.yMax > FT_INT_MAX + cbox.yMin ) + { + FT_ERROR(( "ft_smooth_render_generic: glyph too large:" + " yMin = %d, yMax = %d\n", + cbox.yMin >> 6, cbox.yMax >> 6 )); + return Smooth_Err_Raster_Overflow; + } + else + height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 ); + + bitmap = &slot->bitmap; + memory = render->root.memory; + +#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + width_org = width; + height_org = height; +#endif + + /* release old bitmap buffer */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + /* allocate new one */ + pitch = width; + if ( hmul ) + { + width = width * 3; + pitch = FT_PAD_CEIL( width, 4 ); + } + + if ( vmul ) + height *= 3; + + x_shift = (FT_Int) cbox.xMin; + y_shift = (FT_Int) cbox.yMin; + x_left = (FT_Int)( cbox.xMin >> 6 ); + y_top = (FT_Int)( cbox.yMax >> 6 ); + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + + if ( slot->library->lcd_filter_func ) + { + FT_Int extra = slot->library->lcd_extra; + + + if ( hmul ) + { + x_shift -= 64 * ( extra >> 1 ); + width += 3 * extra; + pitch = FT_PAD_CEIL( width, 4 ); + x_left -= extra >> 1; + } + + if ( vmul ) + { + y_shift -= 64 * ( extra >> 1 ); + height += 3 * extra; + y_top += extra >> 1; + } + } + +#endif + +#if FT_UINT_MAX > 0xFFFFU + + /* Required check is ( pitch * height < FT_ULONG_MAX ), */ + /* but we care realistic cases only. Always pitch <= width. */ + if ( width > 0x7FFFU || height > 0x7FFFU ) + { + FT_ERROR(( "ft_smooth_render_generic: glyph too large: %u x %u\n", + width, height )); + return Smooth_Err_Raster_Overflow; + } + +#endif + + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->num_grays = 256; + bitmap->width = width; + bitmap->rows = height; + bitmap->pitch = pitch; + + /* translate outline to render it into the bitmap */ + FT_Outline_Translate( outline, -x_shift, -y_shift ); + + if ( FT_ALLOC( bitmap->buffer, (FT_ULong)pitch * height ) ) + goto Exit; + + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + /* set up parameters */ + params.target = bitmap; + params.source = outline; + params.flags = FT_RASTER_FLAG_AA; + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + + /* implode outline if needed */ + { + FT_Vector* points = outline->points; + FT_Vector* points_end = points + outline->n_points; + FT_Vector* vec; + + + if ( hmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->x *= 3; + + if ( vmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->y *= 3; + } + + /* render outline into the bitmap */ + error = render->raster_render( render->raster, ¶ms ); + + /* deflate outline if needed */ + { + FT_Vector* points = outline->points; + FT_Vector* points_end = points + outline->n_points; + FT_Vector* vec; + + + if ( hmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->x /= 3; + + if ( vmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->y /= 3; + } + + if ( slot->library->lcd_filter_func ) + slot->library->lcd_filter_func( bitmap, mode, slot->library ); + +#else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + /* render outline into bitmap */ + error = render->raster_render( render->raster, ¶ms ); + + /* expand it horizontally */ + if ( hmul ) + { + FT_Byte* line = bitmap->buffer; + FT_UInt hh; + + + for ( hh = height_org; hh > 0; hh--, line += pitch ) + { + FT_UInt xx; + FT_Byte* end = line + width; + + + for ( xx = width_org; xx > 0; xx-- ) + { + FT_UInt pixel = line[xx-1]; + + + end[-3] = (FT_Byte)pixel; + end[-2] = (FT_Byte)pixel; + end[-1] = (FT_Byte)pixel; + end -= 3; + } + } + } + + /* expand it vertically */ + if ( vmul ) + { + FT_Byte* read = bitmap->buffer + ( height - height_org ) * pitch; + FT_Byte* write = bitmap->buffer; + FT_UInt hh; + + + for ( hh = height_org; hh > 0; hh-- ) + { + ft_memcpy( write, read, pitch ); + write += pitch; + + ft_memcpy( write, read, pitch ); + write += pitch; + + ft_memcpy( write, read, pitch ); + write += pitch; + read += pitch; + } + } + +#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + FT_Outline_Translate( outline, x_shift, y_shift ); + + /* + * XXX: on 16bit system, we return an error for huge bitmap + * to prevent an overflow. + */ + if ( x_left > FT_INT_MAX || y_top > FT_INT_MAX ) + return Smooth_Err_Invalid_Pixel_Size; + + if ( error ) + goto Exit; + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = (FT_Int)x_left; + slot->bitmap_top = (FT_Int)y_top; + + Exit: + if ( outline && origin ) + FT_Outline_Translate( outline, -origin->x, -origin->y ); + + return error; + } + + + /* convert a slot's glyph image into a bitmap */ + static FT_Error + ft_smooth_render( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + if ( mode == FT_RENDER_MODE_LIGHT ) + mode = FT_RENDER_MODE_NORMAL; + + return ft_smooth_render_generic( render, slot, mode, origin, + FT_RENDER_MODE_NORMAL ); + } + + + /* convert a slot's glyph image into a horizontal LCD bitmap */ + static FT_Error + ft_smooth_render_lcd( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error; + + error = ft_smooth_render_generic( render, slot, mode, origin, + FT_RENDER_MODE_LCD ); + if ( !error ) + slot->bitmap.pixel_mode = FT_PIXEL_MODE_LCD; + + return error; + } + + + /* convert a slot's glyph image into a vertical LCD bitmap */ + static FT_Error + ft_smooth_render_lcd_v( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error; + + error = ft_smooth_render_generic( render, slot, mode, origin, + FT_RENDER_MODE_LCD_V ); + if ( !error ) + slot->bitmap.pixel_mode = FT_PIXEL_MODE_LCD_V; + + return error; + } + + + FT_DEFINE_RENDERER(ft_smooth_renderer_class, + + FT_MODULE_RENDERER, + sizeof( FT_RendererRec ), + + "smooth", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_smooth_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_smooth_render, + (FT_Renderer_TransformFunc)ft_smooth_transform, + (FT_Renderer_GetCBoxFunc) ft_smooth_get_cbox, + (FT_Renderer_SetModeFunc) ft_smooth_set_mode, + + (FT_Raster_Funcs*) &FT_GRAYS_RASTER_GET + ) + + + FT_DEFINE_RENDERER(ft_smooth_lcd_renderer_class, + + FT_MODULE_RENDERER, + sizeof( FT_RendererRec ), + + "smooth-lcd", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_smooth_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_smooth_render_lcd, + (FT_Renderer_TransformFunc)ft_smooth_transform, + (FT_Renderer_GetCBoxFunc) ft_smooth_get_cbox, + (FT_Renderer_SetModeFunc) ft_smooth_set_mode, + + (FT_Raster_Funcs*) &FT_GRAYS_RASTER_GET + ) + + FT_DEFINE_RENDERER(ft_smooth_lcdv_renderer_class, + + FT_MODULE_RENDERER, + sizeof( FT_RendererRec ), + + "smooth-lcdv", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_smooth_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_smooth_render_lcd_v, + (FT_Renderer_TransformFunc)ft_smooth_transform, + (FT_Renderer_GetCBoxFunc) ft_smooth_get_cbox, + (FT_Renderer_SetModeFunc) ft_smooth_set_mode, + + (FT_Raster_Funcs*) &FT_GRAYS_RASTER_GET + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.h b/uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.h new file mode 100644 index 000000000..8926111c7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftsmooth.h @@ -0,0 +1,49 @@ +/***************************************************************************/ +/* */ +/* ftsmooth.h */ +/* */ +/* Anti-aliasing renderer interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSMOOTH_H__ +#define __FTSMOOTH_H__ + + +#include <freetype/ft2build.h> +#include FT_RENDER_H + + +FT_BEGIN_HEADER + + +#ifndef FT_CONFIG_OPTION_NO_STD_RASTER + FT_DECLARE_RENDERER( ft_std_renderer_class ) +#endif + +#ifndef FT_CONFIG_OPTION_NO_SMOOTH_RASTER + FT_DECLARE_RENDERER( ft_smooth_renderer_class ) + + FT_DECLARE_RENDERER( ft_smooth_lcd_renderer_class ) + + FT_DECLARE_RENDERER( ft_smooth_lcd_v_renderer_class ) +#endif + + + +FT_END_HEADER + +#endif /* __FTSMOOTH_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftspic.c b/uppsrc/plugin/FT_fontsys/src/smooth/ftspic.c new file mode 100644 index 000000000..47a1f0f79 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftspic.c @@ -0,0 +1,98 @@ +/***************************************************************************/ +/* */ +/* ftspic.c */ +/* */ +/* The FreeType position independent code services for smooth module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "ftspic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ftgrays.c */ + void FT_Init_Class_ft_grays_raster(FT_Raster_Funcs*); + + void + ft_smooth_renderer_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->smooth ) + { + SmoothPIC* container = (SmoothPIC*)pic_container->smooth; + if(--container->ref_count) + return; + FT_FREE( container ); + pic_container->smooth = NULL; + } + } + + + FT_Error + ft_smooth_renderer_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = Smooth_Err_Ok; + SmoothPIC* container; + FT_Memory memory = library->memory; + + + /* since this function also serve smooth_lcd and smooth_lcdv renderers, + it implements reference counting */ + if(pic_container->smooth) + { + ((SmoothPIC*)pic_container->smooth)->ref_count++; + return error; + } + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof(*container) ); + pic_container->smooth = container; + container->ref_count = 1; + + /* initialize pointer table - this is how the module usually expects this data */ + FT_Init_Class_ft_grays_raster(&container->ft_grays_raster); +/*Exit:*/ + if(error) + ft_smooth_renderer_class_pic_free(library); + return error; + } + + /* re-route these init and free functions to the above functions */ + FT_Error ft_smooth_lcd_renderer_class_pic_init(FT_Library library) + { + return ft_smooth_renderer_class_pic_init(library); + } + void ft_smooth_lcd_renderer_class_pic_free(FT_Library library) + { + ft_smooth_renderer_class_pic_free(library); + } + FT_Error ft_smooth_lcdv_renderer_class_pic_init(FT_Library library) + { + return ft_smooth_renderer_class_pic_init(library); + } + void ft_smooth_lcdv_renderer_class_pic_free(FT_Library library) + { + ft_smooth_renderer_class_pic_free(library); + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/ftspic.h b/uppsrc/plugin/FT_fontsys/src/smooth/ftspic.h new file mode 100644 index 000000000..c7e0ce9d8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/ftspic.h @@ -0,0 +1,50 @@ +/***************************************************************************/ +/* */ +/* ftspic.h */ +/* */ +/* The FreeType position independent code services for smooth module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSPIC_H__ +#define __FTSPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_GRAYS_RASTER_GET ft_grays_raster + +#else /* FT_CONFIG_OPTION_PIC */ + + typedef struct SmoothPIC_ + { + int ref_count; + FT_Raster_Funcs ft_grays_raster; + } SmoothPIC; + +#define GET_PIC(lib) ((SmoothPIC*)((lib)->pic_container.smooth)) +#define FT_GRAYS_RASTER_GET (GET_PIC(library)->ft_grays_raster) + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __FTSPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/smooth/smooth.c b/uppsrc/plugin/FT_fontsys/src/smooth/smooth.c new file mode 100644 index 000000000..55989c998 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/smooth/smooth.c @@ -0,0 +1,27 @@ +/***************************************************************************/ +/* */ +/* smooth.c */ +/* */ +/* FreeType anti-aliasing rasterer module component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "ftspic.c" +#include "ftgrays.c" +#include "ftsmooth.c" + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/truetype.c b/uppsrc/plugin/FT_fontsys/src/truetype/truetype.c new file mode 100644 index 000000000..11af968ad --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/truetype.c @@ -0,0 +1,37 @@ +/***************************************************************************/ +/* */ +/* truetype.c */ +/* */ +/* FreeType TrueType driver component (body only). */ +/* */ +/* Copyright 1996-2001, 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "ttpic.c" +#include "ttdriver.c" /* driver interface */ +#include "ttpload.c" /* tables loader */ +#include "ttgload.c" /* glyph loader */ +#include "ttobjs.c" /* object manager */ + +#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttinterp.c" +#endif + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.c" /* gx distortable font */ +#endif + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.c new file mode 100644 index 000000000..f07f662a3 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.c @@ -0,0 +1,487 @@ +/***************************************************************************/ +/* */ +/* ttdriver.c */ +/* */ +/* TrueType font driver implementation (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_SERVICE_XFREE86_NAME_H + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include FT_MULTIPLE_MASTERS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H +#endif + +#include FT_SERVICE_TRUETYPE_ENGINE_H +#include FT_SERVICE_TRUETYPE_GLYF_H + +#include "ttdriver.h" +#include "ttgload.h" +#include "ttpload.h" + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + +#include "tterrors.h" + +#include "ttpic.h" + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttdriver + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** F A C E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#undef PAIR_TAG +#define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \ + (FT_ULong)right ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_get_kerning */ + /* */ + /* <Description> */ + /* A driver method used to return the kerning vector between two */ + /* glyphs of the same face. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* <Output> */ + /* kerning :: The kerning vector. This is in font units for */ + /* scalable formats, and in pixels for fixed-sizes */ + /* formats. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this function. Other layouts, or more sophisticated */ + /* kernings, are out of scope of this method (the basic driver */ + /* interface is meant to be simple). */ + /* */ + /* They can be implemented by format-specific interfaces. */ + /* */ + static FT_Error + tt_get_kerning( FT_Face ttface, /* TT_Face */ + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ) + { + TT_Face face = (TT_Face)ttface; + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + + kerning->x = 0; + kerning->y = 0; + + if ( sfnt ) + kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); + + return 0; + } + + +#undef PAIR_TAG + + + static FT_Error + tt_get_advances( FT_Face ttface, + FT_UInt start, + FT_UInt count, + FT_Int32 flags, + FT_Fixed *advances ) + { + FT_UInt nn; + TT_Face face = (TT_Face) ttface; + + + /* XXX: TODO: check for sbits */ + + if ( flags & FT_LOAD_VERTICAL_LAYOUT ) + { + for ( nn = 0; nn < count; nn++ ) + { + FT_Short tsb; + FT_UShort ah; + + + TT_Get_VMetrics( face, start + nn, &tsb, &ah ); + advances[nn] = ah; + } + } + else + { + for ( nn = 0; nn < count; nn++ ) + { + FT_Short lsb; + FT_UShort aw; + + + TT_Get_HMetrics( face, start + nn, &lsb, &aw ); + advances[nn] = aw; + } + } + + return TT_Err_Ok; + } + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** S I Z E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + static FT_Error + tt_size_select( FT_Size size, + FT_ULong strike_index ) + { + TT_Face ttface = (TT_Face)size->face; + TT_Size ttsize = (TT_Size)size; + FT_Error error = TT_Err_Ok; + + + ttsize->strike_index = strike_index; + + if ( FT_IS_SCALABLE( size->face ) ) + { + /* use the scaled metrics, even when tt_size_reset fails */ + FT_Select_Metrics( size->face, strike_index ); + + tt_size_reset( ttsize ); + } + else + { + SFNT_Service sfnt = (SFNT_Service) ttface->sfnt; + FT_Size_Metrics* metrics = &size->metrics; + + + error = sfnt->load_strike_metrics( ttface, strike_index, metrics ); + if ( error ) + ttsize->strike_index = 0xFFFFFFFFUL; + } + + return error; + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + static FT_Error + tt_size_request( FT_Size size, + FT_Size_Request req ) + { + TT_Size ttsize = (TT_Size)size; + FT_Error error = TT_Err_Ok; + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + if ( FT_HAS_FIXED_SIZES( size->face ) ) + { + TT_Face ttface = (TT_Face)size->face; + SFNT_Service sfnt = (SFNT_Service) ttface->sfnt; + FT_ULong strike_index; + + + error = sfnt->set_sbit_strike( ttface, req, &strike_index ); + + if ( error ) + ttsize->strike_index = 0xFFFFFFFFUL; + else + return tt_size_select( size, strike_index ); + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + FT_Request_Metrics( size->face, req ); + + if ( FT_IS_SCALABLE( size->face ) ) + { + error = tt_size_reset( ttsize ); + ttsize->root.metrics = ttsize->metrics; + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_Glyph */ + /* */ + /* <Description> */ + /* A driver method used to load a glyph within a given glyph slot. */ + /* */ + /* <Input> */ + /* slot :: A handle to the target slot object where the glyph */ + /* will be loaded. */ + /* */ + /* size :: A handle to the source face size at which the glyph */ + /* must be scaled, loaded, etc. */ + /* */ + /* glyph_index :: The index of the glyph in the font file. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_Glyph( FT_GlyphSlot ttslot, /* TT_GlyphSlot */ + FT_Size ttsize, /* TT_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + TT_GlyphSlot slot = (TT_GlyphSlot)ttslot; + TT_Size size = (TT_Size)ttsize; + FT_Face face = ttslot->face; + FT_Error error; + + + if ( !slot ) + return TT_Err_Invalid_Slot_Handle; + + if ( !size ) + return TT_Err_Invalid_Size_Handle; + + if ( !face ) + return TT_Err_Invalid_Argument; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( glyph_index >= (FT_UInt)face->num_glyphs && + !face->internal->incremental_interface ) +#else + if ( glyph_index >= (FT_UInt)face->num_glyphs ) +#endif + return TT_Err_Invalid_Argument; + + if ( load_flags & FT_LOAD_NO_HINTING ) + { + /* both FT_LOAD_NO_HINTING and FT_LOAD_NO_AUTOHINT */ + /* are necessary to disable hinting for tricky fonts */ + + if ( FT_IS_TRICKY( face ) ) + load_flags &= ~FT_LOAD_NO_HINTING; + + if ( load_flags & FT_LOAD_NO_AUTOHINT ) + load_flags |= FT_LOAD_NO_HINTING; + } + + if ( load_flags & ( FT_LOAD_NO_RECURSE | FT_LOAD_NO_SCALE ) ) + { + load_flags |= FT_LOAD_NO_BITMAP | FT_LOAD_NO_SCALE; + + if ( !FT_IS_TRICKY( face ) ) + load_flags |= FT_LOAD_NO_HINTING; + } + + /* now load the glyph outline if necessary */ + error = TT_Load_Glyph( size, slot, glyph_index, load_flags ); + + /* force drop-out mode to 2 - irrelevant now */ + /* slot->outline.dropout_mode = 2; */ + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** D R I V E R I N T E R F A C E ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_DEFINE_SERVICE_MULTIMASTERSREC(tt_service_gx_multi_masters, + (FT_Get_MM_Func) NULL, + (FT_Set_MM_Design_Func) NULL, + (FT_Set_MM_Blend_Func) TT_Set_MM_Blend, + (FT_Get_MM_Var_Func) TT_Get_MM_Var, + (FT_Set_Var_Design_Func)TT_Set_Var_Design + ) +#endif + + static const FT_Service_TrueTypeEngineRec tt_service_truetype_engine = + { +#ifdef TT_USE_BYTECODE_INTERPRETER + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_TRUETYPE_ENGINE_TYPE_UNPATENTED +#else + FT_TRUETYPE_ENGINE_TYPE_PATENTED +#endif + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_TRUETYPE_ENGINE_TYPE_NONE + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + }; + + FT_DEFINE_SERVICE_TTGLYFREC(tt_service_truetype_glyf, + (TT_Glyf_GetLocationFunc)tt_face_get_location + ) + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_DEFINE_SERVICEDESCREC4(tt_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TRUETYPE, + FT_SERVICE_ID_MULTI_MASTERS, &FT_TT_SERVICE_GX_MULTI_MASTERS_GET, + FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine, + FT_SERVICE_ID_TT_GLYF, &FT_TT_SERVICE_TRUETYPE_GLYF_GET + ) +#else + FT_DEFINE_SERVICEDESCREC3(tt_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TRUETYPE, + FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine, + FT_SERVICE_ID_TT_GLYF, &FT_TT_SERVICE_TRUETYPE_GLYF_GET + ) +#endif + + FT_CALLBACK_DEF( FT_Module_Interface ) + tt_get_interface( FT_Module driver, /* TT_Driver */ + const char* tt_interface ) + { + FT_Module_Interface result; + FT_Module sfntd; + SFNT_Service sfnt; + + result = ft_service_list_lookup( FT_TT_SERVICES_GET, tt_interface ); + if ( result != NULL ) + return result; + + if ( !driver ) + return NULL; + + /* only return the default interface from the SFNT module */ + sfntd = FT_Get_Module( driver->library, "sfnt" ); + if ( sfntd ) + { + sfnt = (SFNT_Service)( sfntd->clazz->module_interface ); + if ( sfnt ) + return sfnt->get_interface( driver, tt_interface ); + } + + return 0; + } + + + /* The FT_DriverInterface structure is defined in ftdriver.h. */ + +#ifdef TT_USE_BYTECODE_INTERPRETER +#define TT_HINTER_FLAG FT_MODULE_DRIVER_HAS_HINTER +#else +#define TT_HINTER_FLAG 0 +#endif + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define TT_SIZE_SELECT tt_size_select +#else +#define TT_SIZE_SELECT 0 +#endif + + FT_DEFINE_DRIVER(tt_driver_class, + + + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + TT_HINTER_FLAG, + + sizeof ( TT_DriverRec ), + + "truetype", /* driver name */ + 0x10000L, /* driver version == 1.0 */ + 0x20000L, /* driver requires FreeType 2.0 or above */ + + (void*)0, /* driver specific interface */ + + tt_driver_init, + tt_driver_done, + tt_get_interface, + + sizeof ( TT_FaceRec ), + sizeof ( TT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + tt_face_init, + tt_face_done, + tt_size_init, + tt_size_done, + tt_slot_init, + 0, /* FT_Slot_DoneFunc */ + + ft_stub_set_char_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + ft_stub_set_pixel_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + Load_Glyph, + + tt_get_kerning, + 0, /* FT_Face_AttachFunc */ + tt_get_advances, + + tt_size_request, + TT_SIZE_SELECT + ) + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.h new file mode 100644 index 000000000..4b335d5e0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttdriver.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* ttdriver.h */ +/* */ +/* High-level TrueType driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTDRIVER_H__ +#define __TTDRIVER_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_DRIVER( tt_driver_class ) + + +FT_END_HEADER + +#endif /* __TTDRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/tterrors.h b/uppsrc/plugin/FT_fontsys/src/truetype/tterrors.h new file mode 100644 index 000000000..d317c70e0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/tterrors.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* tterrors.h */ +/* */ +/* TrueType error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the TrueType error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __TTERRORS_H__ +#define __TTERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX TT_Err_ +#define FT_ERR_BASE FT_Mod_Err_TrueType + +#include FT_ERRORS_H + +#endif /* __TTERRORS_H__ */ + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttgload.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttgload.c new file mode 100644 index 000000000..8500c2a16 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttgload.c @@ -0,0 +1,2114 @@ +/***************************************************************************/ +/* */ +/* ttgload.c */ +/* */ +/* TrueType Glyph Loader (body). */ +/* */ +/* Copyright 1996-2011 */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_TRUETYPE_TAGS_H +#include FT_OUTLINE_H + +#include "ttgload.h" +#include "ttpload.h" + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + +#include "tterrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttgload + + + /*************************************************************************/ + /* */ + /* Composite glyph flags. */ + /* */ +#define ARGS_ARE_WORDS 0x0001 +#define ARGS_ARE_XY_VALUES 0x0002 +#define ROUND_XY_TO_GRID 0x0004 +#define WE_HAVE_A_SCALE 0x0008 +/* reserved 0x0010 */ +#define MORE_COMPONENTS 0x0020 +#define WE_HAVE_AN_XY_SCALE 0x0040 +#define WE_HAVE_A_2X2 0x0080 +#define WE_HAVE_INSTR 0x0100 +#define USE_MY_METRICS 0x0200 +#define OVERLAP_COMPOUND 0x0400 +#define SCALED_COMPONENT_OFFSET 0x0800 +#define UNSCALED_COMPONENT_OFFSET 0x1000 + + + /*************************************************************************/ + /* */ + /* Return the horizontal metrics in font units for a given glyph. */ + /* */ + FT_LOCAL_DEF( void ) + TT_Get_HMetrics( TT_Face face, + FT_UInt idx, + FT_Short* lsb, + FT_UShort* aw ) + { + ( (SFNT_Service)face->sfnt )->get_metrics( face, 0, idx, lsb, aw ); + + FT_TRACE5(( " advance width (font units): %d\n", *aw )); + FT_TRACE5(( " left side bearing (font units): %d\n", *lsb )); + } + + + /*************************************************************************/ + /* */ + /* Return the vertical metrics in font units for a given glyph. */ + /* Greg Hitchcock from Microsoft told us that if there were no `vmtx' */ + /* table, typoAscender/Descender from the `OS/2' table would be used */ + /* instead, and if there were no `OS/2' table, use ascender/descender */ + /* from the `hhea' table. But that is not what Microsoft's rasterizer */ + /* apparently does: It uses the ppem value as the advance height, and */ + /* sets the top side bearing to be zero. */ + /* */ + FT_LOCAL_DEF( void ) + TT_Get_VMetrics( TT_Face face, + FT_UInt idx, + FT_Short* tsb, + FT_UShort* ah ) + { + if ( face->vertical_info ) + ( (SFNT_Service)face->sfnt )->get_metrics( face, 1, idx, tsb, ah ); + +#if 1 /* Empirically determined, at variance with what MS said */ + + else + { + *tsb = 0; + *ah = face->root.units_per_EM; + } + +#else /* This is what MS said to do. It isn't what they do, however. */ + + else if ( face->os2.version != 0xFFFFU ) + { + *tsb = face->os2.sTypoAscender; + *ah = face->os2.sTypoAscender - face->os2.sTypoDescender; + } + else + { + *tsb = face->horizontal.Ascender; + *ah = face->horizontal.Ascender - face->horizontal.Descender; + } + +#endif + + FT_TRACE5(( " advance height (font units): %d\n", *ah )); + FT_TRACE5(( " top side bearing (font units): %d\n", *tsb )); + } + + + static void + tt_get_metrics( TT_Loader loader, + FT_UInt glyph_index ) + { + TT_Face face = (TT_Face)loader->face; + + FT_Short left_bearing = 0, top_bearing = 0; + FT_UShort advance_width = 0, advance_height = 0; + + + TT_Get_HMetrics( face, glyph_index, + &left_bearing, + &advance_width ); + TT_Get_VMetrics( face, glyph_index, + &top_bearing, + &advance_height ); + + loader->left_bearing = left_bearing; + loader->advance = advance_width; + loader->top_bearing = top_bearing; + loader->vadvance = advance_height; + + if ( !loader->linear_def ) + { + loader->linear_def = 1; + loader->linear = advance_width; + } + } + + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + static void + tt_get_metrics_incr_overrides( TT_Loader loader, + FT_UInt glyph_index ) + { + TT_Face face = (TT_Face)loader->face; + + FT_Short left_bearing = 0, top_bearing = 0; + FT_UShort advance_width = 0, advance_height = 0; + + + /* If this is an incrementally loaded font check whether there are */ + /* overriding metrics for this glyph. */ + if ( face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + FT_Error error; + + + metrics.bearing_x = loader->left_bearing; + metrics.bearing_y = 0; + metrics.advance = loader->advance; + metrics.advance_v = 0; + + error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( + face->root.internal->incremental_interface->object, + glyph_index, FALSE, &metrics ); + if ( error ) + goto Exit; + + left_bearing = (FT_Short)metrics.bearing_x; + advance_width = (FT_UShort)metrics.advance; + +#if 0 + + /* GWW: Do I do the same for vertical metrics? */ + metrics.bearing_x = 0; + metrics.bearing_y = loader->top_bearing; + metrics.advance = loader->vadvance; + + error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( + face->root.internal->incremental_interface->object, + glyph_index, TRUE, &metrics ); + if ( error ) + goto Exit; + + top_bearing = (FT_Short)metrics.bearing_y; + advance_height = (FT_UShort)metrics.advance; + +#endif /* 0 */ + + loader->left_bearing = left_bearing; + loader->advance = advance_width; + loader->top_bearing = top_bearing; + loader->vadvance = advance_height; + + if ( !loader->linear_def ) + { + loader->linear_def = 1; + loader->linear = advance_width; + } + } + + Exit: + return; + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + + /*************************************************************************/ + /* */ + /* Translates an array of coordinates. */ + /* */ + static void + translate_array( FT_UInt n, + FT_Vector* coords, + FT_Pos delta_x, + FT_Pos delta_y ) + { + FT_UInt k; + + + if ( delta_x ) + for ( k = 0; k < n; k++ ) + coords[k].x += delta_x; + + if ( delta_y ) + for ( k = 0; k < n; k++ ) + coords[k].y += delta_y; + } + + +#undef IS_HINTED +#define IS_HINTED( flags ) ( ( flags & FT_LOAD_NO_HINTING ) == 0 ) + + + /*************************************************************************/ + /* */ + /* The following functions are used by default with TrueType fonts. */ + /* However, they can be replaced by alternatives if we need to support */ + /* TrueType-compressed formats (like MicroType) in the future. */ + /* */ + /*************************************************************************/ + + FT_CALLBACK_DEF( FT_Error ) + TT_Access_Glyph_Frame( TT_Loader loader, + FT_UInt glyph_index, + FT_ULong offset, + FT_UInt byte_count ) + { + FT_Error error; + FT_Stream stream = loader->stream; + + /* for non-debug mode */ + FT_UNUSED( glyph_index ); + + + FT_TRACE4(( "Glyph %ld\n", glyph_index )); + + /* the following line sets the `error' variable through macros! */ + if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( byte_count ) ) + return error; + + loader->cursor = stream->cursor; + loader->limit = stream->limit; + + return TT_Err_Ok; + } + + + FT_CALLBACK_DEF( void ) + TT_Forget_Glyph_Frame( TT_Loader loader ) + { + FT_Stream stream = loader->stream; + + + FT_FRAME_EXIT(); + } + + + FT_CALLBACK_DEF( FT_Error ) + TT_Load_Glyph_Header( TT_Loader loader ) + { + FT_Byte* p = loader->cursor; + FT_Byte* limit = loader->limit; + + + if ( p + 10 > limit ) + return TT_Err_Invalid_Outline; + + loader->n_contours = FT_NEXT_SHORT( p ); + + loader->bbox.xMin = FT_NEXT_SHORT( p ); + loader->bbox.yMin = FT_NEXT_SHORT( p ); + loader->bbox.xMax = FT_NEXT_SHORT( p ); + loader->bbox.yMax = FT_NEXT_SHORT( p ); + + FT_TRACE5(( " # of contours: %d\n", loader->n_contours )); + FT_TRACE5(( " xMin: %4d xMax: %4d\n", loader->bbox.xMin, + loader->bbox.xMax )); + FT_TRACE5(( " yMin: %4d yMax: %4d\n", loader->bbox.yMin, + loader->bbox.yMax )); + loader->cursor = p; + + return TT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + TT_Load_Simple_Glyph( TT_Loader load ) + { + FT_Error error; + FT_Byte* p = load->cursor; + FT_Byte* limit = load->limit; + FT_GlyphLoader gloader = load->gloader; + FT_Int n_contours = load->n_contours; + FT_Outline* outline; + TT_Face face = (TT_Face)load->face; + FT_UShort n_ins; + FT_Int n_points; + + FT_Byte *flag, *flag_limit; + FT_Byte c, count; + FT_Vector *vec, *vec_limit; + FT_Pos x; + FT_Short *cont, *cont_limit, prev_cont; + FT_Int xy_size = 0; + + + /* check that we can add the contours to the glyph */ + error = FT_GLYPHLOADER_CHECK_POINTS( gloader, 0, n_contours ); + if ( error ) + goto Fail; + + /* reading the contours' endpoints & number of points */ + cont = gloader->current.outline.contours; + cont_limit = cont + n_contours; + + /* check space for contours array + instructions count */ + if ( n_contours >= 0xFFF || p + ( n_contours + 1 ) * 2 > limit ) + goto Invalid_Outline; + + prev_cont = FT_NEXT_USHORT( p ); + + if ( n_contours > 0 ) + cont[0] = prev_cont; + + for ( cont++; cont < cont_limit; cont++ ) + { + cont[0] = FT_NEXT_USHORT( p ); + if ( cont[0] <= prev_cont ) + { + /* unordered contours: this is invalid */ + error = TT_Err_Invalid_Table; + goto Fail; + } + prev_cont = cont[0]; + } + + n_points = 0; + if ( n_contours > 0 ) + { + n_points = cont[-1] + 1; + if ( n_points < 0 ) + goto Invalid_Outline; + } + + /* note that we will add four phantom points later */ + error = FT_GLYPHLOADER_CHECK_POINTS( gloader, n_points + 4, 0 ); + if ( error ) + goto Fail; + + /* we'd better check the contours table right now */ + outline = &gloader->current.outline; + + for ( cont = outline->contours + 1; cont < cont_limit; cont++ ) + if ( cont[-1] >= cont[0] ) + goto Invalid_Outline; + + /* reading the bytecode instructions */ + load->glyph->control_len = 0; + load->glyph->control_data = 0; + + if ( p + 2 > limit ) + goto Invalid_Outline; + + n_ins = FT_NEXT_USHORT( p ); + + FT_TRACE5(( " Instructions size: %u\n", n_ins )); + + if ( n_ins > face->max_profile.maxSizeOfInstructions ) + { + FT_TRACE0(( "TT_Load_Simple_Glyph: too many instructions (%d)\n", + n_ins )); + error = TT_Err_Too_Many_Hints; + goto Fail; + } + + if ( ( limit - p ) < n_ins ) + { + FT_TRACE0(( "TT_Load_Simple_Glyph: instruction count mismatch\n" )); + error = TT_Err_Too_Many_Hints; + goto Fail; + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( IS_HINTED( load->load_flags ) ) + { + load->glyph->control_len = n_ins; + load->glyph->control_data = load->exec->glyphIns; + + FT_MEM_COPY( load->exec->glyphIns, p, (FT_Long)n_ins ); + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + p += n_ins; + + /* reading the point tags */ + flag = (FT_Byte*)outline->tags; + flag_limit = flag + n_points; + + FT_ASSERT( flag != NULL ); + + while ( flag < flag_limit ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + *flag++ = c = FT_NEXT_BYTE( p ); + if ( c & 8 ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + count = FT_NEXT_BYTE( p ); + if ( flag + (FT_Int)count > flag_limit ) + goto Invalid_Outline; + + for ( ; count > 0; count-- ) + *flag++ = c; + } + } + + /* reading the X coordinates */ + + vec = outline->points; + vec_limit = vec + n_points; + flag = (FT_Byte*)outline->tags; + x = 0; + + if ( p + xy_size > limit ) + goto Invalid_Outline; + + for ( ; vec < vec_limit; vec++, flag++ ) + { + FT_Pos y = 0; + FT_Byte f = *flag; + + + if ( f & 2 ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_BYTE( p ); + if ( ( f & 16 ) == 0 ) + y = -y; + } + else if ( ( f & 16 ) == 0 ) + { + if ( p + 2 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_SHORT( p ); + } + + x += y; + vec->x = x; + /* the cast is for stupid compilers */ + *flag = (FT_Byte)( f & ~( 2 | 16 ) ); + } + + /* reading the Y coordinates */ + + vec = gloader->current.outline.points; + vec_limit = vec + n_points; + flag = (FT_Byte*)outline->tags; + x = 0; + + for ( ; vec < vec_limit; vec++, flag++ ) + { + FT_Pos y = 0; + FT_Byte f = *flag; + + + if ( f & 4 ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_BYTE( p ); + if ( ( f & 32 ) == 0 ) + y = -y; + } + else if ( ( f & 32 ) == 0 ) + { + if ( p + 2 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_SHORT( p ); + } + + x += y; + vec->y = x; + /* the cast is for stupid compilers */ + *flag = (FT_Byte)( f & FT_CURVE_TAG_ON ); + } + + outline->n_points = (FT_UShort)n_points; + outline->n_contours = (FT_Short) n_contours; + + load->cursor = p; + + Fail: + return error; + + Invalid_Outline: + error = TT_Err_Invalid_Outline; + goto Fail; + } + + + FT_CALLBACK_DEF( FT_Error ) + TT_Load_Composite_Glyph( TT_Loader loader ) + { + FT_Error error; + FT_Byte* p = loader->cursor; + FT_Byte* limit = loader->limit; + FT_GlyphLoader gloader = loader->gloader; + FT_SubGlyph subglyph; + FT_UInt num_subglyphs; + + + num_subglyphs = 0; + + do + { + FT_Fixed xx, xy, yy, yx; + FT_UInt count; + + + /* check that we can load a new subglyph */ + error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs + 1 ); + if ( error ) + goto Fail; + + /* check space */ + if ( p + 4 > limit ) + goto Invalid_Composite; + + subglyph = gloader->current.subglyphs + num_subglyphs; + + subglyph->arg1 = subglyph->arg2 = 0; + + subglyph->flags = FT_NEXT_USHORT( p ); + subglyph->index = FT_NEXT_USHORT( p ); + + /* check space */ + count = 2; + if ( subglyph->flags & ARGS_ARE_WORDS ) + count += 2; + if ( subglyph->flags & WE_HAVE_A_SCALE ) + count += 2; + else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) + count += 4; + else if ( subglyph->flags & WE_HAVE_A_2X2 ) + count += 8; + + if ( p + count > limit ) + goto Invalid_Composite; + + /* read arguments */ + if ( subglyph->flags & ARGS_ARE_WORDS ) + { + subglyph->arg1 = FT_NEXT_SHORT( p ); + subglyph->arg2 = FT_NEXT_SHORT( p ); + } + else + { + subglyph->arg1 = FT_NEXT_CHAR( p ); + subglyph->arg2 = FT_NEXT_CHAR( p ); + } + + /* read transform */ + xx = yy = 0x10000L; + xy = yx = 0; + + if ( subglyph->flags & WE_HAVE_A_SCALE ) + { + xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yy = xx; + } + else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) + { + xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + } + else if ( subglyph->flags & WE_HAVE_A_2X2 ) + { + xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + xy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + } + + subglyph->transform.xx = xx; + subglyph->transform.xy = xy; + subglyph->transform.yx = yx; + subglyph->transform.yy = yy; + + num_subglyphs++; + + } while ( subglyph->flags & MORE_COMPONENTS ); + + gloader->current.num_subglyphs = num_subglyphs; + +#ifdef TT_USE_BYTECODE_INTERPRETER + + { + FT_Stream stream = loader->stream; + + + /* we must undo the FT_FRAME_ENTER in order to point */ + /* to the composite instructions, if we find some. */ + /* We will process them later. */ + /* */ + loader->ins_pos = (FT_ULong)( FT_STREAM_POS() + + p - limit ); + } + +#endif + + loader->cursor = p; + + Fail: + return error; + + Invalid_Composite: + error = TT_Err_Invalid_Composite; + goto Fail; + } + + + FT_LOCAL_DEF( void ) + TT_Init_Glyph_Loading( TT_Face face ) + { + face->access_glyph_frame = TT_Access_Glyph_Frame; + face->read_glyph_header = TT_Load_Glyph_Header; + face->read_simple_glyph = TT_Load_Simple_Glyph; + face->read_composite_glyph = TT_Load_Composite_Glyph; + face->forget_glyph_frame = TT_Forget_Glyph_Frame; + } + + + static void + tt_prepare_zone( TT_GlyphZone zone, + FT_GlyphLoad load, + FT_UInt start_point, + FT_UInt start_contour ) + { + zone->n_points = (FT_UShort)( load->outline.n_points - start_point ); + zone->n_contours = (FT_Short) ( load->outline.n_contours - + start_contour ); + zone->org = load->extra_points + start_point; + zone->cur = load->outline.points + start_point; + zone->orus = load->extra_points2 + start_point; + zone->tags = (FT_Byte*)load->outline.tags + start_point; + zone->contours = (FT_UShort*)load->outline.contours + start_contour; + zone->first_point = (FT_UShort)start_point; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Hint_Glyph */ + /* */ + /* <Description> */ + /* Hint the glyph using the zone prepared by the caller. Note that */ + /* the zone is supposed to include four phantom points. */ + /* */ + static FT_Error + TT_Hint_Glyph( TT_Loader loader, + FT_Bool is_composite ) + { + TT_GlyphZone zone = &loader->zone; + FT_Pos origin; + +#ifdef TT_USE_BYTECODE_INTERPRETER + FT_UInt n_ins; +#else + FT_UNUSED( is_composite ); +#endif + + +#ifdef TT_USE_BYTECODE_INTERPRETER + if ( loader->glyph->control_len > 0xFFFFL ) + { + FT_TRACE1(( "TT_Hint_Glyph: too long instructions " )); + FT_TRACE1(( "(0x%lx byte) is truncated\n", + loader->glyph->control_len )); + } + n_ins = (FT_UInt)( loader->glyph->control_len ); +#endif + + origin = zone->cur[zone->n_points - 4].x; + origin = FT_PIX_ROUND( origin ) - origin; + if ( origin ) + translate_array( zone->n_points, zone->cur, origin, 0 ); + +#ifdef TT_USE_BYTECODE_INTERPRETER + /* save original point position in org */ + if ( n_ins > 0 ) + FT_ARRAY_COPY( zone->org, zone->cur, zone->n_points ); + + /* Reset graphics state. */ + loader->exec->GS = ((TT_Size)loader->size)->GS; + + /* XXX: UNDOCUMENTED! Hinting instructions of a composite glyph */ + /* completely refer to the (already) hinted subglyphs. */ + if ( is_composite ) + { + loader->exec->metrics.x_scale = 1 << 16; + loader->exec->metrics.y_scale = 1 << 16; + + FT_ARRAY_COPY( zone->orus, zone->cur, zone->n_points ); + } + else + { + loader->exec->metrics.x_scale = + ((TT_Size)loader->size)->metrics.x_scale; + loader->exec->metrics.y_scale = + ((TT_Size)loader->size)->metrics.y_scale; + } +#endif + + /* round pp2 and pp4 */ + zone->cur[zone->n_points - 3].x = + FT_PIX_ROUND( zone->cur[zone->n_points - 3].x ); + zone->cur[zone->n_points - 1].y = + FT_PIX_ROUND( zone->cur[zone->n_points - 1].y ); + +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( n_ins > 0 ) + { + FT_Bool debug; + FT_Error error; + + FT_GlyphLoader gloader = loader->gloader; + FT_Outline current_outline = gloader->current.outline; + + + error = TT_Set_CodeRange( loader->exec, tt_coderange_glyph, + loader->exec->glyphIns, n_ins ); + if ( error ) + return error; + + loader->exec->is_composite = is_composite; + loader->exec->pts = *zone; + + debug = FT_BOOL( !( loader->load_flags & FT_LOAD_NO_SCALE ) && + ((TT_Size)loader->size)->debug ); + + error = TT_Run_Context( loader->exec, debug ); + if ( error && loader->exec->pedantic_hinting ) + return error; + + /* store drop-out mode in bits 5-7; set bit 2 also as a marker */ + current_outline.tags[0] |= + ( loader->exec->GS.scan_type << 5 ) | FT_CURVE_TAG_HAS_SCANMODE; + } + +#endif + + /* save glyph phantom points */ + if ( !loader->preserve_pps ) + { + loader->pp1 = zone->cur[zone->n_points - 4]; + loader->pp2 = zone->cur[zone->n_points - 3]; + loader->pp3 = zone->cur[zone->n_points - 2]; + loader->pp4 = zone->cur[zone->n_points - 1]; + } + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Process_Simple_Glyph */ + /* */ + /* <Description> */ + /* Once a simple glyph has been loaded, it needs to be processed. */ + /* Usually, this means scaling and hinting through bytecode */ + /* interpretation. */ + /* */ + static FT_Error + TT_Process_Simple_Glyph( TT_Loader loader ) + { + FT_GlyphLoader gloader = loader->gloader; + FT_Error error = TT_Err_Ok; + FT_Outline* outline; + FT_Int n_points; + + + outline = &gloader->current.outline; + n_points = outline->n_points; + + /* set phantom points */ + + outline->points[n_points ] = loader->pp1; + outline->points[n_points + 1] = loader->pp2; + outline->points[n_points + 2] = loader->pp3; + outline->points[n_points + 3] = loader->pp4; + + outline->tags[n_points ] = 0; + outline->tags[n_points + 1] = 0; + outline->tags[n_points + 2] = 0; + outline->tags[n_points + 3] = 0; + + n_points += 4; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + if ( ((TT_Face)loader->face)->doblend ) + { + /* Deltas apply to the unscaled data. */ + FT_Vector* deltas; + FT_Memory memory = loader->face->memory; + FT_Int i; + + + error = TT_Vary_Get_Glyph_Deltas( (TT_Face)(loader->face), + loader->glyph_index, + &deltas, + n_points ); + if ( error ) + return error; + + for ( i = 0; i < n_points; ++i ) + { + outline->points[i].x += deltas[i].x; + outline->points[i].y += deltas[i].y; + } + + FT_FREE( deltas ); + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + if ( IS_HINTED( loader->load_flags ) ) + { + tt_prepare_zone( &loader->zone, &gloader->current, 0, 0 ); + + FT_ARRAY_COPY( loader->zone.orus, loader->zone.cur, + loader->zone.n_points + 4 ); + } + + /* scale the glyph */ + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + FT_Vector* vec = outline->points; + FT_Vector* limit = outline->points + n_points; + FT_Fixed x_scale = ((TT_Size)loader->size)->metrics.x_scale; + FT_Fixed y_scale = ((TT_Size)loader->size)->metrics.y_scale; + + + for ( ; vec < limit; vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + loader->pp1 = outline->points[n_points - 4]; + loader->pp2 = outline->points[n_points - 3]; + loader->pp3 = outline->points[n_points - 2]; + loader->pp4 = outline->points[n_points - 1]; + } + + if ( IS_HINTED( loader->load_flags ) ) + { + loader->zone.n_points += 4; + + error = TT_Hint_Glyph( loader, 0 ); + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Process_Composite_Component */ + /* */ + /* <Description> */ + /* Once a composite component has been loaded, it needs to be */ + /* processed. Usually, this means transforming and translating. */ + /* */ + static FT_Error + TT_Process_Composite_Component( TT_Loader loader, + FT_SubGlyph subglyph, + FT_UInt start_point, + FT_UInt num_base_points ) + { + FT_GlyphLoader gloader = loader->gloader; + FT_Vector* base_vec = gloader->base.outline.points; + FT_UInt num_points = gloader->base.outline.n_points; + FT_Bool have_scale; + FT_Pos x, y; + + + have_scale = FT_BOOL( subglyph->flags & ( WE_HAVE_A_SCALE | + WE_HAVE_AN_XY_SCALE | + WE_HAVE_A_2X2 ) ); + + /* perform the transform required for this subglyph */ + if ( have_scale ) + { + FT_UInt i; + + + for ( i = num_base_points; i < num_points; i++ ) + FT_Vector_Transform( base_vec + i, &subglyph->transform ); + } + + /* get offset */ + if ( !( subglyph->flags & ARGS_ARE_XY_VALUES ) ) + { + FT_UInt k = subglyph->arg1; + FT_UInt l = subglyph->arg2; + FT_Vector* p1; + FT_Vector* p2; + + + /* match l-th point of the newly loaded component to the k-th point */ + /* of the previously loaded components. */ + + /* change to the point numbers used by our outline */ + k += start_point; + l += num_base_points; + if ( k >= num_base_points || + l >= num_points ) + return TT_Err_Invalid_Composite; + + p1 = gloader->base.outline.points + k; + p2 = gloader->base.outline.points + l; + + x = p1->x - p2->x; + y = p1->y - p2->y; + } + else + { + x = subglyph->arg1; + y = subglyph->arg2; + + if ( !x && !y ) + return TT_Err_Ok; + + /* Use a default value dependent on */ + /* TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED. This is useful for old TT */ + /* fonts which don't set the xxx_COMPONENT_OFFSET bit. */ + + if ( have_scale && +#ifdef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED + !( subglyph->flags & UNSCALED_COMPONENT_OFFSET ) ) +#else + ( subglyph->flags & SCALED_COMPONENT_OFFSET ) ) +#endif + { + +#if 0 + + /*************************************************************************/ + /* */ + /* This algorithm is what Apple documents. But it doesn't work. */ + /* */ + int a = subglyph->transform.xx > 0 ? subglyph->transform.xx + : -subglyph->transform.xx; + int b = subglyph->transform.yx > 0 ? subglyph->transform.yx + : -subglyph->transform.yx; + int c = subglyph->transform.xy > 0 ? subglyph->transform.xy + : -subglyph->transform.xy; + int d = subglyph->transform.yy > 0 ? subglyph->transform.yy + : -subglyph->transform.yy; + int m = a > b ? a : b; + int n = c > d ? c : d; + + + if ( a - b <= 33 && a - b >= -33 ) + m *= 2; + if ( c - d <= 33 && c - d >= -33 ) + n *= 2; + x = FT_MulFix( x, m ); + y = FT_MulFix( y, n ); + +#else /* 0 */ + + /*************************************************************************/ + /* */ + /* This algorithm is a guess and works much better than the above. */ + /* */ + FT_Fixed mac_xscale = FT_SqrtFixed( + (FT_Int32)FT_MulFix( subglyph->transform.xx, + subglyph->transform.xx ) + + (FT_Int32)FT_MulFix( subglyph->transform.xy, + subglyph->transform.xy ) ); + FT_Fixed mac_yscale = FT_SqrtFixed( + (FT_Int32)FT_MulFix( subglyph->transform.yy, + subglyph->transform.yy ) + + (FT_Int32)FT_MulFix( subglyph->transform.yx, + subglyph->transform.yx ) ); + + + x = FT_MulFix( x, mac_xscale ); + y = FT_MulFix( y, mac_yscale ); + +#endif /* 0 */ + + } + + if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) + { + FT_Fixed x_scale = ((TT_Size)loader->size)->metrics.x_scale; + FT_Fixed y_scale = ((TT_Size)loader->size)->metrics.y_scale; + + + x = FT_MulFix( x, x_scale ); + y = FT_MulFix( y, y_scale ); + + if ( subglyph->flags & ROUND_XY_TO_GRID ) + { + x = FT_PIX_ROUND( x ); + y = FT_PIX_ROUND( y ); + } + } + } + + if ( x || y ) + translate_array( num_points - num_base_points, + base_vec + num_base_points, + x, y ); + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Process_Composite_Glyph */ + /* */ + /* <Description> */ + /* This is slightly different from TT_Process_Simple_Glyph, in that */ + /* its sole purpose is to hint the glyph. Thus this function is */ + /* only available when bytecode interpreter is enabled. */ + /* */ + static FT_Error + TT_Process_Composite_Glyph( TT_Loader loader, + FT_UInt start_point, + FT_UInt start_contour ) + { + FT_Error error; + FT_Outline* outline; + FT_UInt i; + + + outline = &loader->gloader->base.outline; + + /* make room for phantom points */ + error = FT_GLYPHLOADER_CHECK_POINTS( loader->gloader, + outline->n_points + 4, + 0 ); + if ( error ) + return error; + + outline->points[outline->n_points ] = loader->pp1; + outline->points[outline->n_points + 1] = loader->pp2; + outline->points[outline->n_points + 2] = loader->pp3; + outline->points[outline->n_points + 3] = loader->pp4; + + outline->tags[outline->n_points ] = 0; + outline->tags[outline->n_points + 1] = 0; + outline->tags[outline->n_points + 2] = 0; + outline->tags[outline->n_points + 3] = 0; + +#ifdef TT_USE_BYTECODE_INTERPRETER + + { + FT_Stream stream = loader->stream; + FT_UShort n_ins, max_ins; + FT_ULong tmp; + + + /* TT_Load_Composite_Glyph only gives us the offset of instructions */ + /* so we read them here */ + if ( FT_STREAM_SEEK( loader->ins_pos ) || + FT_READ_USHORT( n_ins ) ) + return error; + + FT_TRACE5(( " Instructions size = %d\n", n_ins )); + + /* check it */ + max_ins = ((TT_Face)loader->face)->max_profile.maxSizeOfInstructions; + if ( n_ins > max_ins ) + { + /* acroread ignores this field, so we only do a rough safety check */ + if ( (FT_Int)n_ins > loader->byte_len ) + { + FT_TRACE1(( "TT_Process_Composite_Glyph: " + "too many instructions (%d) for glyph with length %d\n", + n_ins, loader->byte_len )); + return TT_Err_Too_Many_Hints; + } + + tmp = loader->exec->glyphSize; + error = Update_Max( loader->exec->memory, + &tmp, + sizeof ( FT_Byte ), + (void*)&loader->exec->glyphIns, + n_ins ); + loader->exec->glyphSize = (FT_UShort)tmp; + if ( error ) + return error; + } + else if ( n_ins == 0 ) + return TT_Err_Ok; + + if ( FT_STREAM_READ( loader->exec->glyphIns, n_ins ) ) + return error; + + loader->glyph->control_data = loader->exec->glyphIns; + loader->glyph->control_len = n_ins; + } + +#endif + + tt_prepare_zone( &loader->zone, &loader->gloader->base, + start_point, start_contour ); + + /* Some points are likely touched during execution of */ + /* instructions on components. So let's untouch them. */ + for ( i = start_point; i < loader->zone.n_points; i++ ) + loader->zone.tags[i] &= ~FT_CURVE_TAG_TOUCH_BOTH; + + loader->zone.n_points += 4; + + return TT_Hint_Glyph( loader, 1 ); + } + + + /* Calculate the four phantom points. */ + /* The first two stand for horizontal origin and advance. */ + /* The last two stand for vertical origin and advance. */ +#define TT_LOADER_SET_PP( loader ) \ + do { \ + (loader)->pp1.x = (loader)->bbox.xMin - (loader)->left_bearing; \ + (loader)->pp1.y = 0; \ + (loader)->pp2.x = (loader)->pp1.x + (loader)->advance; \ + (loader)->pp2.y = 0; \ + (loader)->pp3.x = 0; \ + (loader)->pp3.y = (loader)->top_bearing + (loader)->bbox.yMax; \ + (loader)->pp4.x = 0; \ + (loader)->pp4.y = (loader)->pp3.y - (loader)->vadvance; \ + } while ( 0 ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* load_truetype_glyph */ + /* */ + /* <Description> */ + /* Loads a given truetype glyph. Handles composites and uses a */ + /* TT_Loader object. */ + /* */ + static FT_Error + load_truetype_glyph( TT_Loader loader, + FT_UInt glyph_index, + FT_UInt recurse_count, + FT_Bool header_only ) + { + FT_Error error = TT_Err_Ok; + FT_Fixed x_scale, y_scale; + FT_ULong offset; + TT_Face face = (TT_Face)loader->face; + FT_GlyphLoader gloader = loader->gloader; + FT_Bool opened_frame = 0; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Vector* deltas = NULL; +#endif + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_StreamRec inc_stream; + FT_Data glyph_data; + FT_Bool glyph_data_loaded = 0; +#endif + + + /* some fonts have an incorrect value of `maxComponentDepth', */ + /* thus we allow depth 1 to catch the majority of them */ + if ( recurse_count > 1 && + recurse_count > face->max_profile.maxComponentDepth ) + { + error = TT_Err_Invalid_Composite; + goto Exit; + } + + /* check glyph index */ + if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) + { + error = TT_Err_Invalid_Glyph_Index; + goto Exit; + } + + loader->glyph_index = glyph_index; + + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + x_scale = ((TT_Size)loader->size)->metrics.x_scale; + y_scale = ((TT_Size)loader->size)->metrics.y_scale; + } + else + { + x_scale = 0x10000L; + y_scale = 0x10000L; + } + + tt_get_metrics( loader, glyph_index ); + + /* Set `offset' to the start of the glyph relative to the start of */ + /* the `glyf' table, and `byte_len' to the length of the glyph in */ + /* bytes. */ + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* If we are loading glyph data via the incremental interface, set */ + /* the loader stream to a memory stream reading the data returned */ + /* by the interface. */ + if ( face->root.internal->incremental_interface ) + { + error = face->root.internal->incremental_interface->funcs->get_glyph_data( + face->root.internal->incremental_interface->object, + glyph_index, &glyph_data ); + if ( error ) + goto Exit; + + glyph_data_loaded = 1; + offset = 0; + loader->byte_len = glyph_data.length; + + FT_MEM_ZERO( &inc_stream, sizeof ( inc_stream ) ); + FT_Stream_OpenMemory( &inc_stream, + glyph_data.pointer, glyph_data.length ); + + loader->stream = &inc_stream; + } + else + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + offset = tt_face_get_location( face, glyph_index, + (FT_UInt*)&loader->byte_len ); + + if ( loader->byte_len > 0 ) + { +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* for the incremental interface, `glyf_offset' is always zero */ + if ( !loader->glyf_offset && + !face->root.internal->incremental_interface ) +#else + if ( !loader->glyf_offset ) +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + FT_TRACE2(( "no `glyf' table but non-zero `loca' entry\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + + error = face->access_glyph_frame( loader, glyph_index, + loader->glyf_offset + offset, + loader->byte_len ); + if ( error ) + goto Exit; + + opened_frame = 1; + + /* read glyph header first */ + error = face->read_glyph_header( loader ); + if ( error || header_only ) + goto Exit; + } + + if ( loader->byte_len == 0 || loader->n_contours == 0 ) + { + loader->bbox.xMin = 0; + loader->bbox.xMax = 0; + loader->bbox.yMin = 0; + loader->bbox.yMax = 0; + + if ( header_only ) + goto Exit; + + /* must initialize points before (possibly) overriding */ + /* glyph metrics from the incremental interface */ + TT_LOADER_SET_PP( loader ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + tt_get_metrics_incr_overrides( loader, glyph_index ); +#endif + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + if ( ((TT_Face)(loader->face))->doblend ) + { + /* this must be done before scaling */ + FT_Memory memory = loader->face->memory; + + + error = TT_Vary_Get_Glyph_Deltas( (TT_Face)(loader->face), + glyph_index, &deltas, 4 ); + if ( error ) + goto Exit; + + loader->pp1.x += deltas[0].x; loader->pp1.y += deltas[0].y; + loader->pp2.x += deltas[1].x; loader->pp2.y += deltas[1].y; + loader->pp3.x += deltas[2].x; loader->pp3.y += deltas[2].y; + loader->pp4.x += deltas[3].x; loader->pp4.y += deltas[3].y; + + FT_FREE( deltas ); + } + +#endif + + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); + loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); + loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale ); + loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale ); + } + + error = TT_Err_Ok; + goto Exit; + } + + /* must initialize points before (possibly) overriding */ + /* glyph metrics from the incremental interface */ + TT_LOADER_SET_PP( loader ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + tt_get_metrics_incr_overrides( loader, glyph_index ); +#endif + + /***********************************************************************/ + /***********************************************************************/ + /***********************************************************************/ + + /* if it is a simple glyph, load it */ + + if ( loader->n_contours > 0 ) + { + error = face->read_simple_glyph( loader ); + if ( error ) + goto Exit; + + /* all data have been read */ + face->forget_glyph_frame( loader ); + opened_frame = 0; + + error = TT_Process_Simple_Glyph( loader ); + if ( error ) + goto Exit; + + FT_GlyphLoader_Add( gloader ); + } + + /***********************************************************************/ + /***********************************************************************/ + /***********************************************************************/ + + /* otherwise, load a composite! */ + else if ( loader->n_contours == -1 ) + { + FT_UInt start_point; + FT_UInt start_contour; + FT_ULong ins_pos; /* position of composite instructions, if any */ + + + start_point = gloader->base.outline.n_points; + start_contour = gloader->base.outline.n_contours; + + /* for each subglyph, read composite header */ + error = face->read_composite_glyph( loader ); + if ( error ) + goto Exit; + + /* store the offset of instructions */ + ins_pos = loader->ins_pos; + + /* all data we need are read */ + face->forget_glyph_frame( loader ); + opened_frame = 0; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + if ( face->doblend ) + { + FT_Int i, limit; + FT_SubGlyph subglyph; + FT_Memory memory = face->root.memory; + + + /* this provides additional offsets */ + /* for each component's translation */ + + if ( ( error = TT_Vary_Get_Glyph_Deltas( + face, + glyph_index, + &deltas, + gloader->current.num_subglyphs + 4 )) != 0 ) + goto Exit; + + subglyph = gloader->current.subglyphs + gloader->base.num_subglyphs; + limit = gloader->current.num_subglyphs; + + for ( i = 0; i < limit; ++i, ++subglyph ) + { + if ( subglyph->flags & ARGS_ARE_XY_VALUES ) + { + /* XXX: overflow check for subglyph->{arg1,arg2}. */ + /* deltas[i].{x,y} must be within signed 16-bit, */ + /* but the restriction of summed delta is not clear */ + subglyph->arg1 += (FT_Int16)deltas[i].x; + subglyph->arg2 += (FT_Int16)deltas[i].y; + } + } + + loader->pp1.x += deltas[i + 0].x; loader->pp1.y += deltas[i + 0].y; + loader->pp2.x += deltas[i + 1].x; loader->pp2.y += deltas[i + 1].y; + loader->pp3.x += deltas[i + 2].x; loader->pp3.y += deltas[i + 2].y; + loader->pp4.x += deltas[i + 3].x; loader->pp4.y += deltas[i + 3].y; + + FT_FREE( deltas ); + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); + loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); + loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale ); + loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale ); + } + + /* if the flag FT_LOAD_NO_RECURSE is set, we return the subglyph */ + /* `as is' in the glyph slot (the client application will be */ + /* responsible for interpreting these data)... */ + if ( loader->load_flags & FT_LOAD_NO_RECURSE ) + { + FT_GlyphLoader_Add( gloader ); + loader->glyph->format = FT_GLYPH_FORMAT_COMPOSITE; + + goto Exit; + } + + /*********************************************************************/ + /*********************************************************************/ + /*********************************************************************/ + + { + FT_UInt n, num_base_points; + FT_SubGlyph subglyph = 0; + + FT_UInt num_points = start_point; + FT_UInt num_subglyphs = gloader->current.num_subglyphs; + FT_UInt num_base_subgs = gloader->base.num_subglyphs; + + FT_Stream old_stream = loader->stream; + FT_Int old_byte_len = loader->byte_len; + + + FT_GlyphLoader_Add( gloader ); + + /* read each subglyph independently */ + for ( n = 0; n < num_subglyphs; n++ ) + { + FT_Vector pp[4]; + + + /* Each time we call load_truetype_glyph in this loop, the */ + /* value of `gloader.base.subglyphs' can change due to table */ + /* reallocations. We thus need to recompute the subglyph */ + /* pointer on each iteration. */ + subglyph = gloader->base.subglyphs + num_base_subgs + n; + + pp[0] = loader->pp1; + pp[1] = loader->pp2; + pp[2] = loader->pp3; + pp[3] = loader->pp4; + + num_base_points = gloader->base.outline.n_points; + + error = load_truetype_glyph( loader, subglyph->index, + recurse_count + 1, FALSE ); + if ( error ) + goto Exit; + + /* restore subglyph pointer */ + subglyph = gloader->base.subglyphs + num_base_subgs + n; + + if ( !( subglyph->flags & USE_MY_METRICS ) ) + { + loader->pp1 = pp[0]; + loader->pp2 = pp[1]; + loader->pp3 = pp[2]; + loader->pp4 = pp[3]; + } + + num_points = gloader->base.outline.n_points; + + if ( num_points == num_base_points ) + continue; + + /* gloader->base.outline consists of three parts: */ + /* 0 -(1)-> start_point -(2)-> num_base_points -(3)-> n_points. */ + /* */ + /* (1): exists from the beginning */ + /* (2): components that have been loaded so far */ + /* (3): the newly loaded component */ + TT_Process_Composite_Component( loader, subglyph, start_point, + num_base_points ); + } + + loader->stream = old_stream; + loader->byte_len = old_byte_len; + + /* process the glyph */ + loader->ins_pos = ins_pos; + if ( IS_HINTED( loader->load_flags ) && + +#ifdef TT_USE_BYTECODE_INTERPRETER + + subglyph->flags & WE_HAVE_INSTR && + +#endif + + num_points > start_point ) + TT_Process_Composite_Glyph( loader, start_point, start_contour ); + + } + } + else + { + /* invalid composite count (negative but not -1) */ + error = TT_Err_Invalid_Outline; + goto Exit; + } + + /***********************************************************************/ + /***********************************************************************/ + /***********************************************************************/ + + Exit: + + if ( opened_frame ) + face->forget_glyph_frame( loader ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( glyph_data_loaded ) + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, + &glyph_data ); + +#endif + + return error; + } + + + static FT_Error + compute_glyph_metrics( TT_Loader loader, + FT_UInt glyph_index ) + { + FT_BBox bbox; + TT_Face face = (TT_Face)loader->face; + FT_Fixed y_scale; + TT_GlyphSlot glyph = loader->glyph; + TT_Size size = (TT_Size)loader->size; + + + y_scale = 0x10000L; + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + y_scale = size->root.metrics.y_scale; + + if ( glyph->format != FT_GLYPH_FORMAT_COMPOSITE ) + FT_Outline_Get_CBox( &glyph->outline, &bbox ); + else + bbox = loader->bbox; + + /* get the device-independent horizontal advance; it is scaled later */ + /* by the base layer. */ + glyph->linearHoriAdvance = loader->linear; + + glyph->metrics.horiBearingX = bbox.xMin; + glyph->metrics.horiBearingY = bbox.yMax; + glyph->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; + + /* adjust advance width to the value contained in the hdmx table */ + if ( !face->postscript.isFixedPitch && + IS_HINTED( loader->load_flags ) ) + { + FT_Byte* widthp; + + + widthp = tt_face_get_device_metrics( face, + size->root.metrics.x_ppem, + glyph_index ); + + if ( widthp ) + glyph->metrics.horiAdvance = *widthp << 6; + } + + /* set glyph dimensions */ + glyph->metrics.width = bbox.xMax - bbox.xMin; + glyph->metrics.height = bbox.yMax - bbox.yMin; + + /* Now take care of vertical metrics. In the case where there is */ + /* no vertical information within the font (relatively common), */ + /* create some metrics manually */ + { + FT_Pos top; /* scaled vertical top side bearing */ + FT_Pos advance; /* scaled vertical advance height */ + + + /* Get the unscaled top bearing and advance height. */ + if ( face->vertical_info && + face->vertical.number_Of_VMetrics > 0 ) + { + top = (FT_Short)FT_DivFix( loader->pp3.y - bbox.yMax, + y_scale ); + + if ( loader->pp3.y <= loader->pp4.y ) + advance = 0; + else + advance = (FT_UShort)FT_DivFix( loader->pp3.y - loader->pp4.y, + y_scale ); + } + else + { + FT_Pos height; + + + /* XXX Compute top side bearing and advance height in */ + /* Get_VMetrics instead of here. */ + + /* NOTE: The OS/2 values are the only `portable' ones, */ + /* which is why we use them, if there is an OS/2 */ + /* table in the font. Otherwise, we use the */ + /* values defined in the horizontal header. */ + + height = (FT_Short)FT_DivFix( bbox.yMax - bbox.yMin, + y_scale ); + if ( face->os2.version != 0xFFFFU ) + advance = (FT_Pos)( face->os2.sTypoAscender - + face->os2.sTypoDescender ); + else + advance = (FT_Pos)( face->horizontal.Ascender - + face->horizontal.Descender ); + + top = ( advance - height ) / 2; + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + { + FT_Incremental_InterfaceRec* incr; + FT_Incremental_MetricsRec metrics; + FT_Error error; + + + incr = face->root.internal->incremental_interface; + + /* If this is an incrementally loaded font see if there are */ + /* overriding metrics for this glyph. */ + if ( incr && incr->funcs->get_glyph_metrics ) + { + metrics.bearing_x = 0; + metrics.bearing_y = top; + metrics.advance = advance; + + error = incr->funcs->get_glyph_metrics( incr->object, + glyph_index, + TRUE, + &metrics ); + if ( error ) + return error; + + top = metrics.bearing_y; + advance = metrics.advance; + } + } + + /* GWW: Do vertical metrics get loaded incrementally too? */ + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + glyph->linearVertAdvance = advance; + + /* scale the metrics */ + if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) + { + top = FT_MulFix( top, y_scale ); + advance = FT_MulFix( advance, y_scale ); + } + + /* XXX: for now, we have no better algorithm for the lsb, but it */ + /* should work fine. */ + /* */ + glyph->metrics.vertBearingX = glyph->metrics.horiBearingX - + glyph->metrics.horiAdvance / 2; + glyph->metrics.vertBearingY = top; + glyph->metrics.vertAdvance = advance; + } + + return 0; + } + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + static FT_Error + load_sbit_image( TT_Size size, + TT_GlyphSlot glyph, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + TT_Face face; + SFNT_Service sfnt; + FT_Stream stream; + FT_Error error; + TT_SBit_MetricsRec metrics; + + + face = (TT_Face)glyph->face; + sfnt = (SFNT_Service)face->sfnt; + stream = face->root.stream; + + error = sfnt->load_sbit_image( face, + size->strike_index, + glyph_index, + (FT_Int)load_flags, + stream, + &glyph->bitmap, + &metrics ); + if ( !error ) + { + glyph->outline.n_points = 0; + glyph->outline.n_contours = 0; + + glyph->metrics.width = (FT_Pos)metrics.width << 6; + glyph->metrics.height = (FT_Pos)metrics.height << 6; + + glyph->metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6; + glyph->metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6; + glyph->metrics.horiAdvance = (FT_Pos)metrics.horiAdvance << 6; + + glyph->metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6; + glyph->metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6; + glyph->metrics.vertAdvance = (FT_Pos)metrics.vertAdvance << 6; + + glyph->format = FT_GLYPH_FORMAT_BITMAP; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + glyph->bitmap_left = metrics.vertBearingX; + glyph->bitmap_top = metrics.vertBearingY; + } + else + { + glyph->bitmap_left = metrics.horiBearingX; + glyph->bitmap_top = metrics.horiBearingY; + } + } + + return error; + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + static FT_Error + tt_loader_init( TT_Loader loader, + TT_Size size, + TT_GlyphSlot glyph, + FT_Int32 load_flags, + FT_Bool glyf_table_only ) + { + TT_Face face; + FT_Stream stream; + FT_Bool pedantic = FT_BOOL( load_flags & FT_LOAD_PEDANTIC ); + + + face = (TT_Face)glyph->face; + stream = face->root.stream; + + FT_MEM_ZERO( loader, sizeof ( TT_LoaderRec ) ); + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /* load execution context */ + if ( IS_HINTED( load_flags ) && !glyf_table_only ) + { + TT_ExecContext exec; + FT_Bool grayscale; + + + if ( !size->cvt_ready ) + { + FT_Error error = tt_size_ready_bytecode( size, pedantic ); + + + if ( error ) + return error; + } + + /* query new execution context */ + exec = size->debug ? size->context + : ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; + if ( !exec ) + return TT_Err_Could_Not_Find_Context; + + grayscale = + FT_BOOL( FT_LOAD_TARGET_MODE( load_flags ) != FT_RENDER_MODE_MONO ); + + TT_Load_Context( exec, face, size ); + + /* a change from mono to grayscale rendering (and vice versa) */ + /* requires a re-execution of the CVT program */ + if ( grayscale != exec->grayscale ) + { + FT_UInt i; + + + FT_TRACE4(( "tt_loader_init: grayscale change," + " re-executing `prep' table\n" )); + + exec->grayscale = grayscale; + + for ( i = 0; i < size->cvt_size; i++ ) + size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale ); + tt_size_run_prep( size, pedantic ); + } + + /* see whether the cvt program has disabled hinting */ + if ( exec->GS.instruct_control & 1 ) + load_flags |= FT_LOAD_NO_HINTING; + + /* load default graphics state -- if needed */ + if ( exec->GS.instruct_control & 2 ) + exec->GS = tt_default_graphics_state; + + exec->pedantic_hinting = FT_BOOL( load_flags & FT_LOAD_PEDANTIC ); + loader->exec = exec; + loader->instructions = exec->glyphIns; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + /* seek to the beginning of the glyph table -- for Type 42 fonts */ + /* the table might be accessed from a Postscript stream or something */ + /* else... */ + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( face->root.internal->incremental_interface ) + loader->glyf_offset = 0; + else + +#endif + + { + FT_Error error = face->goto_table( face, TTAG_glyf, stream, 0 ); + + + if ( error == TT_Err_Table_Missing ) + loader->glyf_offset = 0; + else if ( error ) + { + FT_ERROR(( "tt_loader_init: could not access glyph table\n" )); + return error; + } + else + loader->glyf_offset = FT_STREAM_POS(); + } + + /* get face's glyph loader */ + if ( !glyf_table_only ) + { + FT_GlyphLoader gloader = glyph->internal->loader; + + + FT_GlyphLoader_Rewind( gloader ); + loader->gloader = gloader; + } + + loader->load_flags = load_flags; + + loader->face = (FT_Face)face; + loader->size = (FT_Size)size; + loader->glyph = (FT_GlyphSlot)glyph; + loader->stream = stream; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Load_Glyph */ + /* */ + /* <Description> */ + /* A function used to load a single glyph within a given glyph slot, */ + /* for a given size. */ + /* */ + /* <Input> */ + /* glyph :: A handle to a target slot object where the glyph */ + /* will be loaded. */ + /* */ + /* size :: A handle to the source face size at which the glyph */ + /* must be scaled/loaded. */ + /* */ + /* glyph_index :: The index of the glyph in the font file. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Load_Glyph( TT_Size size, + TT_GlyphSlot glyph, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + TT_Face face; + FT_Error error; + TT_LoaderRec loader; + + + face = (TT_Face)glyph->face; + error = TT_Err_Ok; + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* try to load embedded bitmap if any */ + /* */ + /* XXX: The convention should be emphasized in */ + /* the documents because it can be confusing. */ + if ( size->strike_index != 0xFFFFFFFFUL && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + error = load_sbit_image( size, glyph, glyph_index, load_flags ); + if ( !error ) + { + FT_Face root = &face->root; + + + if ( FT_IS_SCALABLE( root ) ) + { + /* for the bbox we need the header only */ + (void)tt_loader_init( &loader, size, glyph, load_flags, TRUE ); + (void)load_truetype_glyph( &loader, glyph_index, 0, TRUE ); + glyph->linearHoriAdvance = loader.linear; + glyph->linearVertAdvance = loader.top_bearing + loader.bbox.yMax - + loader.vadvance; + } + + return TT_Err_Ok; + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* if FT_LOAD_NO_SCALE is not set, `ttmetrics' must be valid */ + if ( !( load_flags & FT_LOAD_NO_SCALE ) && !size->ttmetrics.valid ) + return TT_Err_Invalid_Size_Handle; + + if ( load_flags & FT_LOAD_SBITS_ONLY ) + return TT_Err_Invalid_Argument; + + error = tt_loader_init( &loader, size, glyph, load_flags, FALSE ); + if ( error ) + return error; + + glyph->format = FT_GLYPH_FORMAT_OUTLINE; + glyph->num_subglyphs = 0; + glyph->outline.flags = 0; + + /* main loading loop */ + error = load_truetype_glyph( &loader, glyph_index, 0, FALSE ); + if ( !error ) + { + if ( glyph->format == FT_GLYPH_FORMAT_COMPOSITE ) + { + glyph->num_subglyphs = loader.gloader->base.num_subglyphs; + glyph->subglyphs = loader.gloader->base.subglyphs; + } + else + { + glyph->outline = loader.gloader->base.outline; + glyph->outline.flags &= ~FT_OUTLINE_SINGLE_PASS; + + /* Translate array so that (0,0) is the glyph's origin. Note */ + /* that this behaviour is independent on the value of bit 1 of */ + /* the `flags' field in the `head' table -- at least major */ + /* applications like Acroread indicate that. */ + if ( loader.pp1.x ) + FT_Outline_Translate( &glyph->outline, -loader.pp1.x, 0 ); + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( IS_HINTED( load_flags ) ) + { + if ( loader.exec->GS.scan_control ) + { + /* convert scan conversion mode to FT_OUTLINE_XXX flags */ + switch ( loader.exec->GS.scan_type ) + { + case 0: /* simple drop-outs including stubs */ + glyph->outline.flags |= FT_OUTLINE_INCLUDE_STUBS; + break; + case 1: /* simple drop-outs excluding stubs */ + /* nothing; it's the default rendering mode */ + break; + case 4: /* smart drop-outs including stubs */ + glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS | + FT_OUTLINE_INCLUDE_STUBS; + break; + case 5: /* smart drop-outs excluding stubs */ + glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS; + break; + + default: /* no drop-out control */ + glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; + break; + } + } + else + glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + compute_glyph_metrics( &loader, glyph_index ); + } + + /* Set the `high precision' bit flag. */ + /* This is _critical_ to get correct output for monochrome */ + /* TrueType glyphs at all sizes using the bytecode interpreter. */ + /* */ + if ( !( load_flags & FT_LOAD_NO_SCALE ) && + size->root.metrics.y_ppem < 24 ) + glyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttgload.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttgload.h new file mode 100644 index 000000000..10e6532c9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttgload.h @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* ttgload.h */ +/* */ +/* TrueType Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2006, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTGLOAD_H__ +#define __TTGLOAD_H__ + + +#include <freetype/ft2build.h> +#include "ttobjs.h" + +#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttinterp.h" +#endif + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + TT_Init_Glyph_Loading( TT_Face face ); + + FT_LOCAL( void ) + TT_Get_HMetrics( TT_Face face, + FT_UInt idx, + FT_Short* lsb, + FT_UShort* aw ); + + FT_LOCAL( void ) + TT_Get_VMetrics( TT_Face face, + FT_UInt idx, + FT_Short* tsb, + FT_UShort* ah ); + + FT_LOCAL( FT_Error ) + TT_Load_Glyph( TT_Size size, + TT_GlyphSlot glyph, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __TTGLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.c new file mode 100644 index 000000000..66a2c9fbb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.c @@ -0,0 +1,1548 @@ +/***************************************************************************/ +/* */ +/* ttgxvar.c */ +/* */ +/* TrueType GX Font Variation loader */ +/* */ +/* Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg, and George Williams. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Apple documents the `fvar', `gvar', `cvar', and `avar' tables at */ + /* */ + /* http://developer.apple.com/fonts/TTRefMan/RM06/Chap6[fgca]var.html */ + /* */ + /* The documentation for `fvar' is inconsistent. At one point it says */ + /* that `countSizePairs' should be 3, at another point 2. It should */ + /* be 2. */ + /* */ + /* The documentation for `gvar' is not intelligible; `cvar' refers you */ + /* to `gvar' and is thus also incomprehensible. */ + /* */ + /* The documentation for `avar' appears correct, but Apple has no fonts */ + /* with an `avar' table, so it is hard to test. */ + /* */ + /* Many thanks to John Jenkins (at Apple) in figuring this out. */ + /* */ + /* */ + /* Apple's `kern' table has some references to tuple indices, but as */ + /* there is no indication where these indices are defined, nor how to */ + /* interpolate the kerning values (different tuples have different */ + /* classes) this issue is ignored. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_TRUETYPE_TAGS_H +#include FT_MULTIPLE_MASTERS_H + +#include "ttpload.h" +#include "ttgxvar.h" + +#include "tterrors.h" + + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + +#define FT_Stream_FTell( stream ) \ + ( (stream)->cursor - (stream)->base ) +#define FT_Stream_SeekSet( stream, off ) \ + ( (stream)->cursor = (stream)->base+(off) ) + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttgxvar + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Internal Routines *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro ALL_POINTS is used in `ft_var_readpackedpoints'. It */ + /* indicates that there is a delta for every point without needing to */ + /* enumerate all of them. */ + /* */ +#define ALL_POINTS (FT_UShort*)( -1 ) + + +#define GX_PT_POINTS_ARE_WORDS 0x80 +#define GX_PT_POINT_RUN_COUNT_MASK 0x7F + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_var_readpackedpoints */ + /* */ + /* <Description> */ + /* Read a set of points to which the following deltas will apply. */ + /* Points are packed with a run length encoding. */ + /* */ + /* <Input> */ + /* stream :: The data stream. */ + /* */ + /* <Output> */ + /* point_cnt :: The number of points read. A zero value means that */ + /* all points in the glyph will be affected, without */ + /* enumerating them individually. */ + /* */ + /* <Return> */ + /* An array of FT_UShort containing the affected points or the */ + /* special value ALL_POINTS. */ + /* */ + static FT_UShort* + ft_var_readpackedpoints( FT_Stream stream, + FT_UInt *point_cnt ) + { + FT_UShort *points = NULL; + FT_Int n; + FT_Int runcnt; + FT_Int i; + FT_Int j; + FT_Int first; + FT_Memory memory = stream->memory; + FT_Error error = TT_Err_Ok; + + FT_UNUSED( error ); + + + *point_cnt = n = FT_GET_BYTE(); + if ( n == 0 ) + return ALL_POINTS; + + if ( n & GX_PT_POINTS_ARE_WORDS ) + n = FT_GET_BYTE() | ( ( n & GX_PT_POINT_RUN_COUNT_MASK ) << 8 ); + + if ( FT_NEW_ARRAY( points, n ) ) + return NULL; + + i = 0; + while ( i < n ) + { + runcnt = FT_GET_BYTE(); + if ( runcnt & GX_PT_POINTS_ARE_WORDS ) + { + runcnt = runcnt & GX_PT_POINT_RUN_COUNT_MASK; + first = points[i++] = FT_GET_USHORT(); + + if ( runcnt < 1 || i + runcnt >= n ) + goto Exit; + + /* first point not included in runcount */ + for ( j = 0; j < runcnt; ++j ) + points[i++] = (FT_UShort)( first += FT_GET_USHORT() ); + } + else + { + first = points[i++] = FT_GET_BYTE(); + + if ( runcnt < 1 || i + runcnt >= n ) + goto Exit; + + for ( j = 0; j < runcnt; ++j ) + points[i++] = (FT_UShort)( first += FT_GET_BYTE() ); + } + } + + Exit: + return points; + } + + + enum + { + GX_DT_DELTAS_ARE_ZERO = 0x80, + GX_DT_DELTAS_ARE_WORDS = 0x40, + GX_DT_DELTA_RUN_COUNT_MASK = 0x3F + }; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_var_readpackeddeltas */ + /* */ + /* <Description> */ + /* Read a set of deltas. These are packed slightly differently than */ + /* points. In particular there is no overall count. */ + /* */ + /* <Input> */ + /* stream :: The data stream. */ + /* */ + /* delta_cnt :: The number of to be read. */ + /* */ + /* <Return> */ + /* An array of FT_Short containing the deltas for the affected */ + /* points. (This only gets the deltas for one dimension. It will */ + /* generally be called twice, once for x, once for y. When used in */ + /* cvt table, it will only be called once.) */ + /* */ + static FT_Short* + ft_var_readpackeddeltas( FT_Stream stream, + FT_Offset delta_cnt ) + { + FT_Short *deltas = NULL; + FT_UInt runcnt; + FT_Offset i; + FT_UInt j; + FT_Memory memory = stream->memory; + FT_Error error = TT_Err_Ok; + + FT_UNUSED( error ); + + + if ( FT_NEW_ARRAY( deltas, delta_cnt ) ) + return NULL; + + i = 0; + while ( i < delta_cnt ) + { + runcnt = FT_GET_BYTE(); + if ( runcnt & GX_DT_DELTAS_ARE_ZERO ) + { + /* runcnt zeroes get added */ + for ( j = 0; + j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) && i < delta_cnt; + ++j ) + deltas[i++] = 0; + } + else if ( runcnt & GX_DT_DELTAS_ARE_WORDS ) + { + /* runcnt shorts from the stack */ + for ( j = 0; + j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) && i < delta_cnt; + ++j ) + deltas[i++] = FT_GET_SHORT(); + } + else + { + /* runcnt signed bytes from the stack */ + for ( j = 0; + j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) && i < delta_cnt; + ++j ) + deltas[i++] = FT_GET_CHAR(); + } + + if ( j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) ) + { + /* Bad format */ + FT_FREE( deltas ); + return NULL; + } + } + + return deltas; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_var_load_avar */ + /* */ + /* <Description> */ + /* Parse the `avar' table if present. It need not be, so we return */ + /* nothing. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* */ + static void + ft_var_load_avar( TT_Face face ) + { + FT_Stream stream = FT_FACE_STREAM(face); + FT_Memory memory = stream->memory; + GX_Blend blend = face->blend; + GX_AVarSegment segment; + FT_Error error = TT_Err_Ok; + FT_ULong version; + FT_Long axisCount; + FT_Int i, j; + FT_ULong table_len; + + FT_UNUSED( error ); + + + blend->avar_checked = TRUE; + if ( (error = face->goto_table( face, TTAG_avar, stream, &table_len )) != 0 ) + return; + + if ( FT_FRAME_ENTER( table_len ) ) + return; + + version = FT_GET_LONG(); + axisCount = FT_GET_LONG(); + + if ( version != 0x00010000L || + axisCount != (FT_Long)blend->mmvar->num_axis ) + goto Exit; + + if ( FT_NEW_ARRAY( blend->avar_segment, axisCount ) ) + goto Exit; + + segment = &blend->avar_segment[0]; + for ( i = 0; i < axisCount; ++i, ++segment ) + { + segment->pairCount = FT_GET_USHORT(); + if ( FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) ) + { + /* Failure. Free everything we have done so far. We must do */ + /* it right now since loading the `avar' table is optional. */ + + for ( j = i - 1; j >= 0; --j ) + FT_FREE( blend->avar_segment[j].correspondence ); + + FT_FREE( blend->avar_segment ); + blend->avar_segment = NULL; + goto Exit; + } + + for ( j = 0; j < segment->pairCount; ++j ) + { + segment->correspondence[j].fromCoord = + FT_GET_SHORT() << 2; /* convert to Fixed */ + segment->correspondence[j].toCoord = + FT_GET_SHORT()<<2; /* convert to Fixed */ + } + } + + Exit: + FT_FRAME_EXIT(); + } + + + typedef struct GX_GVar_Head_ + { + FT_Long version; + FT_UShort axisCount; + FT_UShort globalCoordCount; + FT_ULong offsetToCoord; + FT_UShort glyphCount; + FT_UShort flags; + FT_ULong offsetToData; + + } GX_GVar_Head; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_var_load_gvar */ + /* */ + /* <Description> */ + /* Parses the `gvar' table if present. If `fvar' is there, `gvar' */ + /* had better be there too. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + ft_var_load_gvar( TT_Face face ) + { + FT_Stream stream = FT_FACE_STREAM(face); + FT_Memory memory = stream->memory; + GX_Blend blend = face->blend; + FT_Error error; + FT_UInt i, j; + FT_ULong table_len; + FT_ULong gvar_start; + FT_ULong offsetToData; + GX_GVar_Head gvar_head; + + static const FT_Frame_Field gvar_fields[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE GX_GVar_Head + + FT_FRAME_START( 20 ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT( axisCount ), + FT_FRAME_USHORT( globalCoordCount ), + FT_FRAME_ULONG ( offsetToCoord ), + FT_FRAME_USHORT( glyphCount ), + FT_FRAME_USHORT( flags ), + FT_FRAME_ULONG ( offsetToData ), + FT_FRAME_END + }; + + if ( (error = face->goto_table( face, TTAG_gvar, stream, &table_len )) != 0 ) + goto Exit; + + gvar_start = FT_STREAM_POS( ); + if ( FT_STREAM_READ_FIELDS( gvar_fields, &gvar_head ) ) + goto Exit; + + blend->tuplecount = gvar_head.globalCoordCount; + blend->gv_glyphcnt = gvar_head.glyphCount; + offsetToData = gvar_start + gvar_head.offsetToData; + + if ( gvar_head.version != (FT_Long)0x00010000L || + gvar_head.axisCount != (FT_UShort)blend->mmvar->num_axis ) + { + error = TT_Err_Invalid_Table; + goto Exit; + } + + if ( FT_NEW_ARRAY( blend->glyphoffsets, blend->gv_glyphcnt + 1 ) ) + goto Exit; + + if ( gvar_head.flags & 1 ) + { + /* long offsets (one more offset than glyphs, to mark size of last) */ + if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 4L ) ) + goto Exit; + + for ( i = 0; i <= blend->gv_glyphcnt; ++i ) + blend->glyphoffsets[i] = offsetToData + FT_GET_LONG(); + + FT_FRAME_EXIT(); + } + else + { + /* short offsets (one more offset than glyphs, to mark size of last) */ + if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 2L ) ) + goto Exit; + + for ( i = 0; i <= blend->gv_glyphcnt; ++i ) + blend->glyphoffsets[i] = offsetToData + FT_GET_USHORT() * 2; + /* XXX: Undocumented: `*2'! */ + + FT_FRAME_EXIT(); + } + + if ( blend->tuplecount != 0 ) + { + if ( FT_NEW_ARRAY( blend->tuplecoords, + gvar_head.axisCount * blend->tuplecount ) ) + goto Exit; + + if ( FT_STREAM_SEEK( gvar_start + gvar_head.offsetToCoord ) || + FT_FRAME_ENTER( blend->tuplecount * gvar_head.axisCount * 2L ) ) + goto Exit; + + for ( i = 0; i < blend->tuplecount; ++i ) + for ( j = 0 ; j < (FT_UInt)gvar_head.axisCount; ++j ) + blend->tuplecoords[i * gvar_head.axisCount + j] = + FT_GET_SHORT() << 2; /* convert to FT_Fixed */ + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_var_apply_tuple */ + /* */ + /* <Description> */ + /* Figure out whether a given tuple (design) applies to the current */ + /* blend, and if so, what is the scaling factor. */ + /* */ + /* <Input> */ + /* blend :: The current blend of the font. */ + /* */ + /* tupleIndex :: A flag saying whether this is an intermediate */ + /* tuple or not. */ + /* */ + /* tuple_coords :: The coordinates of the tuple in normalized axis */ + /* units. */ + /* */ + /* im_start_coords :: The initial coordinates where this tuple starts */ + /* to apply (for intermediate coordinates). */ + /* */ + /* im_end_coords :: The final coordinates after which this tuple no */ + /* longer applies (for intermediate coordinates). */ + /* */ + /* <Return> */ + /* An FT_Fixed value containing the scaling factor. */ + /* */ + static FT_Fixed + ft_var_apply_tuple( GX_Blend blend, + FT_UShort tupleIndex, + FT_Fixed* tuple_coords, + FT_Fixed* im_start_coords, + FT_Fixed* im_end_coords ) + { + FT_UInt i; + FT_Fixed apply; + FT_Fixed temp; + + + apply = 0x10000L; + for ( i = 0; i < blend->num_axis; ++i ) + { + if ( tuple_coords[i] == 0 ) + /* It's not clear why (for intermediate tuples) we don't need */ + /* to check against start/end -- the documentation says we don't. */ + /* Similarly, it's unclear why we don't need to scale along the */ + /* axis. */ + continue; + + else if ( blend->normalizedcoords[i] == 0 || + ( blend->normalizedcoords[i] < 0 && tuple_coords[i] > 0 ) || + ( blend->normalizedcoords[i] > 0 && tuple_coords[i] < 0 ) ) + { + apply = 0; + break; + } + + else if ( !( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) ) + /* not an intermediate tuple */ + apply = FT_MulDiv( apply, + blend->normalizedcoords[i] > 0 + ? blend->normalizedcoords[i] + : -blend->normalizedcoords[i], + 0x10000L ); + + else if ( blend->normalizedcoords[i] <= im_start_coords[i] || + blend->normalizedcoords[i] >= im_end_coords[i] ) + { + apply = 0; + break; + } + + else if ( blend->normalizedcoords[i] < tuple_coords[i] ) + { + temp = FT_MulDiv( blend->normalizedcoords[i] - im_start_coords[i], + 0x10000L, + tuple_coords[i] - im_start_coords[i]); + apply = FT_MulDiv( apply, temp, 0x10000L ); + } + + else + { + temp = FT_MulDiv( im_end_coords[i] - blend->normalizedcoords[i], + 0x10000L, + im_end_coords[i] - tuple_coords[i] ); + apply = FT_MulDiv( apply, temp, 0x10000L ); + } + } + + return apply; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MULTIPLE MASTERS SERVICE FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct GX_FVar_Head_ + { + FT_Long version; + FT_UShort offsetToData; + FT_UShort countSizePairs; + FT_UShort axisCount; + FT_UShort axisSize; + FT_UShort instanceCount; + FT_UShort instanceSize; + + } GX_FVar_Head; + + + typedef struct fvar_axis_ + { + FT_ULong axisTag; + FT_ULong minValue; + FT_ULong defaultValue; + FT_ULong maxValue; + FT_UShort flags; + FT_UShort nameID; + + } GX_FVar_Axis; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Get_MM_Var */ + /* */ + /* <Description> */ + /* Check that the font's `fvar' table is valid, parse it, and return */ + /* those data. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* TT_Get_MM_Var initializes the blend structure. */ + /* */ + /* <Output> */ + /* master :: The `fvar' data (must be freed by caller). */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Get_MM_Var( TT_Face face, + FT_MM_Var* *master ) + { + FT_Stream stream = face->root.stream; + FT_Memory memory = face->root.memory; + FT_ULong table_len; + FT_Error error = TT_Err_Ok; + FT_ULong fvar_start; + FT_Int i, j; + FT_MM_Var* mmvar = NULL; + FT_Fixed* next_coords; + FT_String* next_name; + FT_Var_Axis* a; + FT_Var_Named_Style* ns; + GX_FVar_Head fvar_head; + + static const FT_Frame_Field fvar_fields[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE GX_FVar_Head + + FT_FRAME_START( 16 ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT( offsetToData ), + FT_FRAME_USHORT( countSizePairs ), + FT_FRAME_USHORT( axisCount ), + FT_FRAME_USHORT( axisSize ), + FT_FRAME_USHORT( instanceCount ), + FT_FRAME_USHORT( instanceSize ), + FT_FRAME_END + }; + + static const FT_Frame_Field fvaraxis_fields[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE GX_FVar_Axis + + FT_FRAME_START( 20 ), + FT_FRAME_ULONG ( axisTag ), + FT_FRAME_ULONG ( minValue ), + FT_FRAME_ULONG ( defaultValue ), + FT_FRAME_ULONG ( maxValue ), + FT_FRAME_USHORT( flags ), + FT_FRAME_USHORT( nameID ), + FT_FRAME_END + }; + + + if ( face->blend == NULL ) + { + /* both `fvar' and `gvar' must be present */ + if ( (error = face->goto_table( face, TTAG_gvar, + stream, &table_len )) != 0 ) + goto Exit; + + if ( (error = face->goto_table( face, TTAG_fvar, + stream, &table_len )) != 0 ) + goto Exit; + + fvar_start = FT_STREAM_POS( ); + + if ( FT_STREAM_READ_FIELDS( fvar_fields, &fvar_head ) ) + goto Exit; + + if ( fvar_head.version != (FT_Long)0x00010000L || + fvar_head.countSizePairs != 2 || + fvar_head.axisSize != 20 || + /* axisCount limit implied by 16-bit instanceSize */ + fvar_head.axisCount > 0x3FFE || + fvar_head.instanceSize != 4 + 4 * fvar_head.axisCount || + /* instanceCount limit implied by limited range of name IDs */ + fvar_head.instanceCount > 0x7EFF || + fvar_head.offsetToData + fvar_head.axisCount * 20U + + fvar_head.instanceCount * fvar_head.instanceSize > table_len ) + { + error = TT_Err_Invalid_Table; + goto Exit; + } + + if ( FT_NEW( face->blend ) ) + goto Exit; + + /* cannot overflow 32-bit arithmetic because of limits above */ + face->blend->mmvar_len = + sizeof ( FT_MM_Var ) + + fvar_head.axisCount * sizeof ( FT_Var_Axis ) + + fvar_head.instanceCount * sizeof ( FT_Var_Named_Style ) + + fvar_head.instanceCount * fvar_head.axisCount * sizeof ( FT_Fixed ) + + 5 * fvar_head.axisCount; + + if ( FT_ALLOC( mmvar, face->blend->mmvar_len ) ) + goto Exit; + face->blend->mmvar = mmvar; + + mmvar->num_axis = + fvar_head.axisCount; + mmvar->num_designs = + (FT_UInt)-1; /* meaningless in this context; each glyph */ + /* may have a different number of designs */ + /* (or tuples, as called by Apple) */ + mmvar->num_namedstyles = + fvar_head.instanceCount; + mmvar->axis = + (FT_Var_Axis*)&(mmvar[1]); + mmvar->namedstyle = + (FT_Var_Named_Style*)&(mmvar->axis[fvar_head.axisCount]); + + next_coords = + (FT_Fixed*)&(mmvar->namedstyle[fvar_head.instanceCount]); + for ( i = 0; i < fvar_head.instanceCount; ++i ) + { + mmvar->namedstyle[i].coords = next_coords; + next_coords += fvar_head.axisCount; + } + + next_name = (FT_String*)next_coords; + for ( i = 0; i < fvar_head.axisCount; ++i ) + { + mmvar->axis[i].name = next_name; + next_name += 5; + } + + if ( FT_STREAM_SEEK( fvar_start + fvar_head.offsetToData ) ) + goto Exit; + + a = mmvar->axis; + for ( i = 0; i < fvar_head.axisCount; ++i ) + { + GX_FVar_Axis axis_rec; + + + if ( FT_STREAM_READ_FIELDS( fvaraxis_fields, &axis_rec ) ) + goto Exit; + a->tag = axis_rec.axisTag; + a->minimum = axis_rec.minValue; /* A Fixed */ + a->def = axis_rec.defaultValue; /* A Fixed */ + a->maximum = axis_rec.maxValue; /* A Fixed */ + a->strid = axis_rec.nameID; + + a->name[0] = (FT_String)( a->tag >> 24 ); + a->name[1] = (FT_String)( ( a->tag >> 16 ) & 0xFF ); + a->name[2] = (FT_String)( ( a->tag >> 8 ) & 0xFF ); + a->name[3] = (FT_String)( ( a->tag ) & 0xFF ); + a->name[4] = 0; + + ++a; + } + + ns = mmvar->namedstyle; + for ( i = 0; i < fvar_head.instanceCount; ++i, ++ns ) + { + if ( FT_FRAME_ENTER( 4L + 4L * fvar_head.axisCount ) ) + goto Exit; + + ns->strid = FT_GET_USHORT(); + (void) /* flags = */ FT_GET_USHORT(); + + for ( j = 0; j < fvar_head.axisCount; ++j ) + ns->coords[j] = FT_GET_ULONG(); /* A Fixed */ + + FT_FRAME_EXIT(); + } + } + + if ( master != NULL ) + { + FT_UInt n; + + + if ( FT_ALLOC( mmvar, face->blend->mmvar_len ) ) + goto Exit; + FT_MEM_COPY( mmvar, face->blend->mmvar, face->blend->mmvar_len ); + + mmvar->axis = + (FT_Var_Axis*)&(mmvar[1]); + mmvar->namedstyle = + (FT_Var_Named_Style*)&(mmvar->axis[mmvar->num_axis]); + next_coords = + (FT_Fixed*)&(mmvar->namedstyle[mmvar->num_namedstyles]); + + for ( n = 0; n < mmvar->num_namedstyles; ++n ) + { + mmvar->namedstyle[n].coords = next_coords; + next_coords += mmvar->num_axis; + } + + a = mmvar->axis; + next_name = (FT_String*)next_coords; + for ( n = 0; n < mmvar->num_axis; ++n ) + { + a->name = next_name; + + /* standard PostScript names for some standard apple tags */ + if ( a->tag == TTAG_wght ) + a->name = (char *)"Weight"; + else if ( a->tag == TTAG_wdth ) + a->name = (char *)"Width"; + else if ( a->tag == TTAG_opsz ) + a->name = (char *)"OpticalSize"; + else if ( a->tag == TTAG_slnt ) + a->name = (char *)"Slant"; + + next_name += 5; + ++a; + } + + *master = mmvar; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Set_MM_Blend */ + /* */ + /* <Description> */ + /* Set the blend (normalized) coordinates for this instance of the */ + /* font. Check that the `gvar' table is reasonable and does some */ + /* initial preparation. */ + /* */ + /* <InOut> */ + /* face :: The font. */ + /* Initialize the blend structure with `gvar' data. */ + /* */ + /* <Input> */ + /* num_coords :: Must be the axis count of the font. */ + /* */ + /* coords :: An array of num_coords, each between [-1,1]. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_MM_Blend( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error = TT_Err_Ok; + GX_Blend blend; + FT_MM_Var* mmvar; + FT_UInt i; + FT_Memory memory = face->root.memory; + + enum + { + mcvt_retain, + mcvt_modify, + mcvt_load + + } manageCvt; + + + face->doblend = FALSE; + + if ( face->blend == NULL ) + { + if ( (error = TT_Get_MM_Var( face, NULL)) != 0 ) + goto Exit; + } + + blend = face->blend; + mmvar = blend->mmvar; + + if ( num_coords != mmvar->num_axis ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + for ( i = 0; i < num_coords; ++i ) + if ( coords[i] < -0x00010000L || coords[i] > 0x00010000L ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + if ( blend->glyphoffsets == NULL ) + if ( (error = ft_var_load_gvar( face )) != 0 ) + goto Exit; + + if ( blend->normalizedcoords == NULL ) + { + if ( FT_NEW_ARRAY( blend->normalizedcoords, num_coords ) ) + goto Exit; + + manageCvt = mcvt_modify; + + /* If we have not set the blend coordinates before this, then the */ + /* cvt table will still be what we read from the `cvt ' table and */ + /* we don't need to reload it. We may need to change it though... */ + } + else + { + manageCvt = mcvt_retain; + for ( i = 0; i < num_coords; ++i ) + { + if ( blend->normalizedcoords[i] != coords[i] ) + { + manageCvt = mcvt_load; + break; + } + } + + /* If we don't change the blend coords then we don't need to do */ + /* anything to the cvt table. It will be correct. Otherwise we */ + /* no longer have the original cvt (it was modified when we set */ + /* the blend last time), so we must reload and then modify it. */ + } + + blend->num_axis = num_coords; + FT_MEM_COPY( blend->normalizedcoords, + coords, + num_coords * sizeof ( FT_Fixed ) ); + + face->doblend = TRUE; + + if ( face->cvt != NULL ) + { + switch ( manageCvt ) + { + case mcvt_load: + /* The cvt table has been loaded already; every time we change the */ + /* blend we may need to reload and remodify the cvt table. */ + FT_FREE( face->cvt ); + face->cvt = NULL; + + tt_face_load_cvt( face, face->root.stream ); + break; + + case mcvt_modify: + /* The original cvt table is in memory. All we need to do is */ + /* apply the `cvar' table (if any). */ + tt_face_vary_cvt( face, face->root.stream ); + break; + + case mcvt_retain: + /* The cvt table is correct for this set of coordinates. */ + break; + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Set_Var_Design */ + /* */ + /* <Description> */ + /* Set the coordinates for the instance, measured in the user */ + /* coordinate system. Parse the `avar' table (if present) to convert */ + /* from user to normalized coordinates. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* Initialize the blend struct with `gvar' data. */ + /* */ + /* <Input> */ + /* num_coords :: This must be the axis count of the font. */ + /* */ + /* coords :: A coordinate array with `num_coords' elements. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_Var_Design( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error = TT_Err_Ok; + FT_Fixed* normalized = NULL; + GX_Blend blend; + FT_MM_Var* mmvar; + FT_UInt i, j; + FT_Var_Axis* a; + GX_AVarSegment av; + FT_Memory memory = face->root.memory; + + + if ( face->blend == NULL ) + { + if ( (error = TT_Get_MM_Var( face, NULL )) != 0 ) + goto Exit; + } + + blend = face->blend; + mmvar = blend->mmvar; + + if ( num_coords != mmvar->num_axis ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + /* Axis normalization is a two stage process. First we normalize */ + /* based on the [min,def,max] values for the axis to be [-1,0,1]. */ + /* Then, if there's an `avar' table, we renormalize this range. */ + + if ( FT_NEW_ARRAY( normalized, mmvar->num_axis ) ) + goto Exit; + + a = mmvar->axis; + for ( i = 0; i < mmvar->num_axis; ++i, ++a ) + { + if ( coords[i] > a->maximum || coords[i] < a->minimum ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + if ( coords[i] < a->def ) + { + normalized[i] = -FT_MulDiv( coords[i] - a->def, + 0x10000L, + a->minimum - a->def ); + } + else if ( a->maximum == a->def ) + normalized[i] = 0; + else + { + normalized[i] = FT_MulDiv( coords[i] - a->def, + 0x10000L, + a->maximum - a->def ); + } + } + + if ( !blend->avar_checked ) + ft_var_load_avar( face ); + + if ( blend->avar_segment != NULL ) + { + av = blend->avar_segment; + for ( i = 0; i < mmvar->num_axis; ++i, ++av ) + { + for ( j = 1; j < (FT_UInt)av->pairCount; ++j ) + if ( normalized[i] < av->correspondence[j].fromCoord ) + { + normalized[i] = + FT_MulDiv( + FT_MulDiv( + normalized[i] - av->correspondence[j - 1].fromCoord, + 0x10000L, + av->correspondence[j].fromCoord - + av->correspondence[j - 1].fromCoord ), + av->correspondence[j].toCoord - + av->correspondence[j - 1].toCoord, + 0x10000L ) + + av->correspondence[j - 1].toCoord; + break; + } + } + } + + error = TT_Set_MM_Blend( face, num_coords, normalized ); + + Exit: + FT_FREE( normalized ); + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GX VAR PARSING ROUTINES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_vary_cvt */ + /* */ + /* <Description> */ + /* Modify the loaded cvt table according to the `cvar' table and the */ + /* font's blend. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* Most errors are ignored. It is perfectly valid not to have a */ + /* `cvar' table even if there is a `gvar' and `fvar' table. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_vary_cvt( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong table_start; + FT_ULong table_len; + FT_UInt tupleCount; + FT_ULong offsetToData; + FT_ULong here; + FT_UInt i, j; + FT_Fixed* tuple_coords = NULL; + FT_Fixed* im_start_coords = NULL; + FT_Fixed* im_end_coords = NULL; + GX_Blend blend = face->blend; + FT_UInt point_count; + FT_UShort* localpoints; + FT_Short* deltas; + + + FT_TRACE2(( "CVAR " )); + + if ( blend == NULL ) + { + FT_TRACE2(( "tt_face_vary_cvt: no blend specified\n" )); + + error = TT_Err_Ok; + goto Exit; + } + + if ( face->cvt == NULL ) + { + FT_TRACE2(( "tt_face_vary_cvt: no `cvt ' table\n" )); + + error = TT_Err_Ok; + goto Exit; + } + + error = face->goto_table( face, TTAG_cvar, stream, &table_len ); + if ( error ) + { + FT_TRACE2(( "is missing\n" )); + + error = TT_Err_Ok; + goto Exit; + } + + if ( FT_FRAME_ENTER( table_len ) ) + { + error = TT_Err_Ok; + goto Exit; + } + + table_start = FT_Stream_FTell( stream ); + if ( FT_GET_LONG() != 0x00010000L ) + { + FT_TRACE2(( "bad table version\n" )); + + error = TT_Err_Ok; + goto FExit; + } + + if ( FT_NEW_ARRAY( tuple_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_start_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_end_coords, blend->num_axis ) ) + goto FExit; + + tupleCount = FT_GET_USHORT(); + offsetToData = table_start + FT_GET_USHORT(); + + /* The documentation implies there are flags packed into the */ + /* tuplecount, but John Jenkins says that shared points don't apply */ + /* to `cvar', and no other flags are defined. */ + + for ( i = 0; i < ( tupleCount & 0xFFF ); ++i ) + { + FT_UInt tupleDataSize; + FT_UInt tupleIndex; + FT_Fixed apply; + + + tupleDataSize = FT_GET_USHORT(); + tupleIndex = FT_GET_USHORT(); + + /* There is no provision here for a global tuple coordinate section, */ + /* so John says. There are no tuple indices, just embedded tuples. */ + + if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD ) + { + for ( j = 0; j < blend->num_axis; ++j ) + tuple_coords[j] = FT_GET_SHORT() << 2; /* convert from */ + /* short frac to fixed */ + } + else + { + /* skip this tuple; it makes no sense */ + + if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) + for ( j = 0; j < 2 * blend->num_axis; ++j ) + (void)FT_GET_SHORT(); + + offsetToData += tupleDataSize; + continue; + } + + if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) + { + for ( j = 0; j < blend->num_axis; ++j ) + im_start_coords[j] = FT_GET_SHORT() << 2; + for ( j = 0; j < blend->num_axis; ++j ) + im_end_coords[j] = FT_GET_SHORT() << 2; + } + + apply = ft_var_apply_tuple( blend, + (FT_UShort)tupleIndex, + tuple_coords, + im_start_coords, + im_end_coords ); + if ( /* tuple isn't active for our blend */ + apply == 0 || + /* global points not allowed, */ + /* if they aren't local, makes no sense */ + !( tupleIndex & GX_TI_PRIVATE_POINT_NUMBERS ) ) + { + offsetToData += tupleDataSize; + continue; + } + + here = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, offsetToData ); + + localpoints = ft_var_readpackedpoints( stream, &point_count ); + deltas = ft_var_readpackeddeltas( stream, + point_count == 0 ? face->cvt_size + : point_count ); + if ( localpoints == NULL || deltas == NULL ) + /* failure, ignore it */; + + else if ( localpoints == ALL_POINTS ) + { + /* this means that there are deltas for every entry in cvt */ + for ( j = 0; j < face->cvt_size; ++j ) + face->cvt[j] = (FT_Short)( face->cvt[j] + + FT_MulFix( deltas[j], apply ) ); + } + + else + { + for ( j = 0; j < point_count; ++j ) + { + int pindex = localpoints[j]; + + face->cvt[pindex] = (FT_Short)( face->cvt[pindex] + + FT_MulFix( deltas[j], apply ) ); + } + } + + if ( localpoints != ALL_POINTS ) + FT_FREE( localpoints ); + FT_FREE( deltas ); + + offsetToData += tupleDataSize; + + FT_Stream_SeekSet( stream, here ); + } + + FExit: + FT_FRAME_EXIT(); + + Exit: + FT_FREE( tuple_coords ); + FT_FREE( im_start_coords ); + FT_FREE( im_end_coords ); + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Vary_Get_Glyph_Deltas */ + /* */ + /* <Description> */ + /* Load the appropriate deltas for the current glyph. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* glyph_index :: The index of the glyph being modified. */ + /* */ + /* n_points :: The number of the points in the glyph, including */ + /* phantom points. */ + /* */ + /* <Output> */ + /* deltas :: The array of points to change. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Vary_Get_Glyph_Deltas( TT_Face face, + FT_UInt glyph_index, + FT_Vector* *deltas, + FT_UInt n_points ) + { + FT_Stream stream = face->root.stream; + FT_Memory memory = stream->memory; + GX_Blend blend = face->blend; + FT_Vector* delta_xy = NULL; + + FT_Error error; + FT_ULong glyph_start; + FT_UInt tupleCount; + FT_ULong offsetToData; + FT_ULong here; + FT_UInt i, j; + FT_Fixed* tuple_coords = NULL; + FT_Fixed* im_start_coords = NULL; + FT_Fixed* im_end_coords = NULL; + FT_UInt point_count, spoint_count = 0; + FT_UShort* sharedpoints = NULL; + FT_UShort* localpoints = NULL; + FT_UShort* points; + FT_Short *deltas_x, *deltas_y; + + + if ( !face->doblend || blend == NULL ) + return TT_Err_Invalid_Argument; + + /* to be freed by the caller */ + if ( FT_NEW_ARRAY( delta_xy, n_points ) ) + goto Exit; + *deltas = delta_xy; + + if ( glyph_index >= blend->gv_glyphcnt || + blend->glyphoffsets[glyph_index] == + blend->glyphoffsets[glyph_index + 1] ) + return TT_Err_Ok; /* no variation data for this glyph */ + + if ( FT_STREAM_SEEK( blend->glyphoffsets[glyph_index] ) || + FT_FRAME_ENTER( blend->glyphoffsets[glyph_index + 1] - + blend->glyphoffsets[glyph_index] ) ) + goto Fail1; + + glyph_start = FT_Stream_FTell( stream ); + + /* each set of glyph variation data is formatted similarly to `cvar' */ + /* (except we get shared points and global tuples) */ + + if ( FT_NEW_ARRAY( tuple_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_start_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_end_coords, blend->num_axis ) ) + goto Fail2; + + tupleCount = FT_GET_USHORT(); + offsetToData = glyph_start + FT_GET_USHORT(); + + if ( tupleCount & GX_TC_TUPLES_SHARE_POINT_NUMBERS ) + { + here = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, offsetToData ); + + sharedpoints = ft_var_readpackedpoints( stream, &spoint_count ); + offsetToData = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, here ); + } + + for ( i = 0; i < ( tupleCount & GX_TC_TUPLE_COUNT_MASK ); ++i ) + { + FT_UInt tupleDataSize; + FT_UInt tupleIndex; + FT_Fixed apply; + + + tupleDataSize = FT_GET_USHORT(); + tupleIndex = FT_GET_USHORT(); + + if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD ) + { + for ( j = 0; j < blend->num_axis; ++j ) + tuple_coords[j] = FT_GET_SHORT() << 2; /* convert from */ + /* short frac to fixed */ + } + else if ( ( tupleIndex & GX_TI_TUPLE_INDEX_MASK ) >= blend->tuplecount ) + { + error = TT_Err_Invalid_Table; + goto Fail3; + } + else + { + FT_MEM_COPY( + tuple_coords, + &blend->tuplecoords[(tupleIndex & 0xFFF) * blend->num_axis], + blend->num_axis * sizeof ( FT_Fixed ) ); + } + + if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) + { + for ( j = 0; j < blend->num_axis; ++j ) + im_start_coords[j] = FT_GET_SHORT() << 2; + for ( j = 0; j < blend->num_axis; ++j ) + im_end_coords[j] = FT_GET_SHORT() << 2; + } + + apply = ft_var_apply_tuple( blend, + (FT_UShort)tupleIndex, + tuple_coords, + im_start_coords, + im_end_coords ); + + if ( apply == 0 ) /* tuple isn't active for our blend */ + { + offsetToData += tupleDataSize; + continue; + } + + here = FT_Stream_FTell( stream ); + + if ( tupleIndex & GX_TI_PRIVATE_POINT_NUMBERS ) + { + FT_Stream_SeekSet( stream, offsetToData ); + + localpoints = ft_var_readpackedpoints( stream, &point_count ); + points = localpoints; + } + else + { + points = sharedpoints; + point_count = spoint_count; + } + + deltas_x = ft_var_readpackeddeltas( stream, + point_count == 0 ? n_points + : point_count ); + deltas_y = ft_var_readpackeddeltas( stream, + point_count == 0 ? n_points + : point_count ); + + if ( points == NULL || deltas_y == NULL || deltas_x == NULL ) + ; /* failure, ignore it */ + + else if ( points == ALL_POINTS ) + { + /* this means that there are deltas for every point in the glyph */ + for ( j = 0; j < n_points; ++j ) + { + delta_xy[j].x += FT_MulFix( deltas_x[j], apply ); + delta_xy[j].y += FT_MulFix( deltas_y[j], apply ); + } + } + + else + { + for ( j = 0; j < point_count; ++j ) + { + delta_xy[localpoints[j]].x += FT_MulFix( deltas_x[j], apply ); + delta_xy[localpoints[j]].y += FT_MulFix( deltas_y[j], apply ); + } + } + + if ( localpoints != ALL_POINTS ) + FT_FREE( localpoints ); + FT_FREE( deltas_x ); + FT_FREE( deltas_y ); + + offsetToData += tupleDataSize; + + FT_Stream_SeekSet( stream, here ); + } + + Fail3: + FT_FREE( tuple_coords ); + FT_FREE( im_start_coords ); + FT_FREE( im_end_coords ); + + Fail2: + FT_FRAME_EXIT(); + + Fail1: + if ( error ) + { + FT_FREE( delta_xy ); + *deltas = NULL; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_done_blend */ + /* */ + /* <Description> */ + /* Frees the blend internal data structure. */ + /* */ + FT_LOCAL_DEF( void ) + tt_done_blend( FT_Memory memory, + GX_Blend blend ) + { + if ( blend != NULL ) + { + FT_UInt i; + + + FT_FREE( blend->normalizedcoords ); + FT_FREE( blend->mmvar ); + + if ( blend->avar_segment != NULL ) + { + for ( i = 0; i < blend->num_axis; ++i ) + FT_FREE( blend->avar_segment[i].correspondence ); + FT_FREE( blend->avar_segment ); + } + + FT_FREE( blend->tuplecoords ); + FT_FREE( blend->glyphoffsets ); + FT_FREE( blend ); + } + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.h new file mode 100644 index 000000000..fc98831dc --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttgxvar.h @@ -0,0 +1,182 @@ +/***************************************************************************/ +/* */ +/* ttgxvar.h */ +/* */ +/* TrueType GX Font Variation loader (specification) */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg and George Williams. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTGXVAR_H__ +#define __TTGXVAR_H__ + + +#include <freetype/ft2build.h> +#include "ttobjs.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* GX_AVarCorrespondenceRec */ + /* */ + /* <Description> */ + /* A data structure representing `shortFracCorrespondence' in `avar' */ + /* table according to the specifications from Apple. */ + /* */ + typedef struct GX_AVarCorrespondenceRec_ + { + FT_Fixed fromCoord; + FT_Fixed toCoord; + + } GX_AVarCorrespondenceRec_, *GX_AVarCorrespondence; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* GX_AVarRec */ + /* */ + /* <Description> */ + /* Data from the segment field of `avar' table. */ + /* There is one of these for each axis. */ + /* */ + typedef struct GX_AVarSegmentRec_ + { + FT_UShort pairCount; + GX_AVarCorrespondence correspondence; /* array with pairCount entries */ + + } GX_AVarSegmentRec, *GX_AVarSegment; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* GX_BlendRec */ + /* */ + /* <Description> */ + /* Data for interpolating a font from a distortable font specified */ + /* by the GX *var tables ([fgca]var). */ + /* */ + /* <Fields> */ + /* num_axis :: The number of axes along which interpolation */ + /* may happen */ + /* */ + /* normalizedcoords :: A normalized value (between [-1,1]) indicating */ + /* the contribution along each axis to the final */ + /* interpolated font. */ + /* */ + typedef struct GX_BlendRec_ + { + FT_UInt num_axis; + FT_Fixed* normalizedcoords; + + FT_MM_Var* mmvar; + FT_Offset mmvar_len; + + FT_Bool avar_checked; + GX_AVarSegment avar_segment; + + FT_UInt tuplecount; /* shared tuples in `gvar' */ + FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ + + FT_UInt gv_glyphcnt; + FT_ULong* glyphoffsets; + + } GX_BlendRec; + + + /*************************************************************************/ + /* */ + /* <enum> */ + /* GX_TupleCountFlags */ + /* */ + /* <Description> */ + /* Flags used within the `TupleCount' field of the `gvar' table. */ + /* */ + typedef enum GX_TupleCountFlags_ + { + GX_TC_TUPLES_SHARE_POINT_NUMBERS = 0x8000, + GX_TC_RESERVED_TUPLE_FLAGS = 0x7000, + GX_TC_TUPLE_COUNT_MASK = 0x0FFF + + } GX_TupleCountFlags; + + + /*************************************************************************/ + /* */ + /* <enum> */ + /* GX_TupleIndexFlags */ + /* */ + /* <Description> */ + /* Flags used within the `TupleIndex' field of the `gvar' and `cvar' */ + /* tables. */ + /* */ + typedef enum GX_TupleIndexFlags_ + { + GX_TI_EMBEDDED_TUPLE_COORD = 0x8000, + GX_TI_INTERMEDIATE_TUPLE = 0x4000, + GX_TI_PRIVATE_POINT_NUMBERS = 0x2000, + GX_TI_RESERVED_TUPLE_FLAG = 0x1000, + GX_TI_TUPLE_INDEX_MASK = 0x0FFF + + } GX_TupleIndexFlags; + + +#define TTAG_wght FT_MAKE_TAG( 'w', 'g', 'h', 't' ) +#define TTAG_wdth FT_MAKE_TAG( 'w', 'd', 't', 'h' ) +#define TTAG_opsz FT_MAKE_TAG( 'o', 'p', 's', 'z' ) +#define TTAG_slnt FT_MAKE_TAG( 's', 'l', 'n', 't' ) + + + FT_LOCAL( FT_Error ) + TT_Set_MM_Blend( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( FT_Error ) + TT_Set_Var_Design( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( FT_Error ) + TT_Get_MM_Var( TT_Face face, + FT_MM_Var* *master ); + + + FT_LOCAL( FT_Error ) + tt_face_vary_cvt( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + TT_Vary_Get_Glyph_Deltas( TT_Face face, + FT_UInt glyph_index, + FT_Vector* *deltas, + FT_UInt n_points ); + + + FT_LOCAL( void ) + tt_done_blend( FT_Memory memory, + GX_Blend blend ); + + +FT_END_HEADER + + +#endif /* __TTGXVAR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.c new file mode 100644 index 000000000..269598225 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.c @@ -0,0 +1,8210 @@ +/***************************************************************************/ +/* */ +/* ttinterp.c */ +/* */ +/* TrueType bytecode interpreter (body). */ +/* */ +/* Copyright 1996-2011 */ +/* by David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include FT_TRIGONOMETRY_H +#include FT_SYSTEM_H + +#include "ttinterp.h" + +#include "tterrors.h" + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + +#define TT_MULFIX FT_MulFix +#define TT_MULDIV FT_MulDiv +#define TT_MULDIV_NO_ROUND FT_MulDiv_No_Round + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttinterp + + /*************************************************************************/ + /* */ + /* In order to detect infinite loops in the code, we set up a counter */ + /* within the run loop. A single stroke of interpretation is now */ + /* limited to a maximal number of opcodes defined below. */ + /* */ +#define MAX_RUNNABLE_OPCODES 1000000L + + + /*************************************************************************/ + /* */ + /* There are two kinds of implementations: */ + /* */ + /* a. static implementation */ + /* */ + /* The current execution context is a static variable, which fields */ + /* are accessed directly by the interpreter during execution. The */ + /* context is named `cur'. */ + /* */ + /* This version is non-reentrant, of course. */ + /* */ + /* b. indirect implementation */ + /* */ + /* The current execution context is passed to _each_ function as its */ + /* first argument, and each field is thus accessed indirectly. */ + /* */ + /* This version is fully re-entrant. */ + /* */ + /* The idea is that an indirect implementation may be slower to execute */ + /* on low-end processors that are used in some systems (like 386s or */ + /* even 486s). */ + /* */ + /* As a consequence, the indirect implementation is now the default, as */ + /* its performance costs can be considered negligible in our context. */ + /* Note, however, that we kept the same source with macros because: */ + /* */ + /* - The code is kept very close in design to the Pascal code used for */ + /* development. */ + /* */ + /* - It's much more readable that way! */ + /* */ + /* - It's still open to experimentation and tuning. */ + /* */ + /*************************************************************************/ + + +#ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */ + +#define CUR (*exc) /* see ttobjs.h */ + + /*************************************************************************/ + /* */ + /* This macro is used whenever `exec' is unused in a function, to avoid */ + /* stupid warnings from pedantic compilers. */ + /* */ +#define FT_UNUSED_EXEC FT_UNUSED( exc ) + +#else /* static implementation */ + +#define CUR cur + +#define FT_UNUSED_EXEC int __dummy = __dummy + + static + TT_ExecContextRec cur; /* static exec. context variable */ + + /* apparently, we have a _lot_ of direct indexing when accessing */ + /* the static `cur', which makes the code bigger (due to all the */ + /* four bytes addresses). */ + +#endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */ + + + /*************************************************************************/ + /* */ + /* The instruction argument stack. */ + /* */ +#define INS_ARG EXEC_OP_ FT_Long* args /* see ttobjs.h for EXEC_OP_ */ + + + /*************************************************************************/ + /* */ + /* This macro is used whenever `args' is unused in a function, to avoid */ + /* stupid warnings from pedantic compilers. */ + /* */ +#define FT_UNUSED_ARG FT_UNUSED_EXEC; FT_UNUSED( args ) + + + /*************************************************************************/ + /* */ + /* The following macros hide the use of EXEC_ARG and EXEC_ARG_ to */ + /* increase readability of the code. */ + /* */ + /*************************************************************************/ + + +#define SKIP_Code() \ + SkipCode( EXEC_ARG ) + +#define GET_ShortIns() \ + GetShortIns( EXEC_ARG ) + +#define NORMalize( x, y, v ) \ + Normalize( EXEC_ARG_ x, y, v ) + +#define SET_SuperRound( scale, flags ) \ + SetSuperRound( EXEC_ARG_ scale, flags ) + +#define ROUND_None( d, c ) \ + Round_None( EXEC_ARG_ d, c ) + +#define INS_Goto_CodeRange( range, ip ) \ + Ins_Goto_CodeRange( EXEC_ARG_ range, ip ) + +#define CUR_Func_move( z, p, d ) \ + CUR.func_move( EXEC_ARG_ z, p, d ) + +#define CUR_Func_move_orig( z, p, d ) \ + CUR.func_move_orig( EXEC_ARG_ z, p, d ) + +#define CUR_Func_round( d, c ) \ + CUR.func_round( EXEC_ARG_ d, c ) + +#define CUR_Func_read_cvt( index ) \ + CUR.func_read_cvt( EXEC_ARG_ index ) + +#define CUR_Func_write_cvt( index, val ) \ + CUR.func_write_cvt( EXEC_ARG_ index, val ) + +#define CUR_Func_move_cvt( index, val ) \ + CUR.func_move_cvt( EXEC_ARG_ index, val ) + +#define CURRENT_Ratio() \ + Current_Ratio( EXEC_ARG ) + +#define CURRENT_Ppem() \ + Current_Ppem( EXEC_ARG ) + +#define CUR_Ppem() \ + Cur_PPEM( EXEC_ARG ) + +#define INS_SxVTL( a, b, c, d ) \ + Ins_SxVTL( EXEC_ARG_ a, b, c, d ) + +#define COMPUTE_Funcs() \ + Compute_Funcs( EXEC_ARG ) + +#define COMPUTE_Round( a ) \ + Compute_Round( EXEC_ARG_ a ) + +#define COMPUTE_Point_Displacement( a, b, c, d ) \ + Compute_Point_Displacement( EXEC_ARG_ a, b, c, d ) + +#define MOVE_Zp2_Point( a, b, c, t ) \ + Move_Zp2_Point( EXEC_ARG_ a, b, c, t ) + + +#define CUR_Func_project( v1, v2 ) \ + CUR.func_project( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y ) + +#define CUR_Func_dualproj( v1, v2 ) \ + CUR.func_dualproj( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y ) + +#define CUR_fast_project( v ) \ + CUR.func_project( EXEC_ARG_ (v)->x, (v)->y ) + +#define CUR_fast_dualproj( v ) \ + CUR.func_dualproj( EXEC_ARG_ (v)->x, (v)->y ) + + + /*************************************************************************/ + /* */ + /* Instruction dispatch function, as used by the interpreter. */ + /* */ + typedef void (*TInstruction_Function)( INS_ARG ); + + + /*************************************************************************/ + /* */ + /* Two simple bounds-checking macros. */ + /* */ +#define BOUNDS( x, n ) ( (FT_UInt)(x) >= (FT_UInt)(n) ) +#define BOUNDSL( x, n ) ( (FT_ULong)(x) >= (FT_ULong)(n) ) + +#undef SUCCESS +#define SUCCESS 0 + +#undef FAILURE +#define FAILURE 1 + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#define GUESS_VECTOR( V ) \ + if ( CUR.face->unpatented_hinting ) \ + { \ + CUR.GS.V.x = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0x4000 : 0 ); \ + CUR.GS.V.y = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0 : 0x4000 ); \ + } +#else +#define GUESS_VECTOR( V ) +#endif + + /*************************************************************************/ + /* */ + /* CODERANGE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Goto_CodeRange */ + /* */ + /* <Description> */ + /* Switches to a new code range (updates the code related elements in */ + /* `exec', and `IP'). */ + /* */ + /* <Input> */ + /* range :: The new execution code range. */ + /* */ + /* IP :: The new IP in the new code range. */ + /* */ + /* <InOut> */ + /* exec :: The target execution context. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Goto_CodeRange( TT_ExecContext exec, + FT_Int range, + FT_Long IP ) + { + TT_CodeRange* coderange; + + + FT_ASSERT( range >= 1 && range <= 3 ); + + coderange = &exec->codeRangeTable[range - 1]; + + FT_ASSERT( coderange->base != NULL ); + + /* NOTE: Because the last instruction of a program may be a CALL */ + /* which will return to the first byte *after* the code */ + /* range, we test for IP <= Size instead of IP < Size. */ + /* */ + FT_ASSERT( (FT_ULong)IP <= coderange->size ); + + exec->code = coderange->base; + exec->codeSize = coderange->size; + exec->IP = IP; + exec->curRange = range; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Set_CodeRange */ + /* */ + /* <Description> */ + /* Sets a code range. */ + /* */ + /* <Input> */ + /* range :: The code range index. */ + /* */ + /* base :: The new code base. */ + /* */ + /* length :: The range size in bytes. */ + /* */ + /* <InOut> */ + /* exec :: The target execution context. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_CodeRange( TT_ExecContext exec, + FT_Int range, + void* base, + FT_Long length ) + { + FT_ASSERT( range >= 1 && range <= 3 ); + + exec->codeRangeTable[range - 1].base = (FT_Byte*)base; + exec->codeRangeTable[range - 1].size = length; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Clear_CodeRange */ + /* */ + /* <Description> */ + /* Clears a code range. */ + /* */ + /* <Input> */ + /* range :: The code range index. */ + /* */ + /* <InOut> */ + /* exec :: The target execution context. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Does not set the Error variable. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Clear_CodeRange( TT_ExecContext exec, + FT_Int range ) + { + FT_ASSERT( range >= 1 && range <= 3 ); + + exec->codeRangeTable[range - 1].base = NULL; + exec->codeRangeTable[range - 1].size = 0; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* EXECUTION CONTEXT ROUTINES */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Done_Context */ + /* */ + /* <Description> */ + /* Destroys a given context. */ + /* */ + /* <Input> */ + /* exec :: A handle to the target execution context. */ + /* */ + /* memory :: A handle to the parent memory object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Done_Context( TT_ExecContext exec ) + { + FT_Memory memory = exec->memory; + + + /* points zone */ + exec->maxPoints = 0; + exec->maxContours = 0; + + /* free stack */ + FT_FREE( exec->stack ); + exec->stackSize = 0; + + /* free call stack */ + FT_FREE( exec->callStack ); + exec->callSize = 0; + exec->callTop = 0; + + /* free glyph code range */ + FT_FREE( exec->glyphIns ); + exec->glyphSize = 0; + + exec->size = NULL; + exec->face = NULL; + + FT_FREE( exec ); + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Init_Context */ + /* */ + /* <Description> */ + /* Initializes a context object. */ + /* */ + /* <Input> */ + /* memory :: A handle to the parent memory object. */ + /* */ + /* <InOut> */ + /* exec :: A handle to the target execution context. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Init_Context( TT_ExecContext exec, + FT_Memory memory ) + { + FT_Error error; + + + FT_TRACE1(( "Init_Context: new object at 0x%08p\n", exec )); + + exec->memory = memory; + exec->callSize = 32; + + if ( FT_NEW_ARRAY( exec->callStack, exec->callSize ) ) + goto Fail_Memory; + + /* all values in the context are set to 0 already, but this is */ + /* here as a remainder */ + exec->maxPoints = 0; + exec->maxContours = 0; + + exec->stackSize = 0; + exec->glyphSize = 0; + + exec->stack = NULL; + exec->glyphIns = NULL; + + exec->face = NULL; + exec->size = NULL; + + return TT_Err_Ok; + + Fail_Memory: + FT_ERROR(( "Init_Context: not enough memory for %p\n", exec )); + TT_Done_Context( exec ); + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Update_Max */ + /* */ + /* <Description> */ + /* Checks the size of a buffer and reallocates it if necessary. */ + /* */ + /* <Input> */ + /* memory :: A handle to the parent memory object. */ + /* */ + /* multiplier :: The size in bytes of each element in the buffer. */ + /* */ + /* new_max :: The new capacity (size) of the buffer. */ + /* */ + /* <InOut> */ + /* size :: The address of the buffer's current size expressed */ + /* in elements. */ + /* */ + /* buff :: The address of the buffer base pointer. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + Update_Max( FT_Memory memory, + FT_ULong* size, + FT_Long multiplier, + void* _pbuff, + FT_ULong new_max ) + { + FT_Error error; + void** pbuff = (void**)_pbuff; + + + if ( *size < new_max ) + { + if ( FT_REALLOC( *pbuff, *size * multiplier, new_max * multiplier ) ) + return error; + *size = new_max; + } + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Load_Context */ + /* */ + /* <Description> */ + /* Prepare an execution context for glyph hinting. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* size :: A handle to the source size object. */ + /* */ + /* <InOut> */ + /* exec :: A handle to the target execution context. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Load_Context( TT_ExecContext exec, + TT_Face face, + TT_Size size ) + { + FT_Int i; + FT_ULong tmp; + TT_MaxProfile* maxp; + FT_Error error; + + + exec->face = face; + maxp = &face->max_profile; + exec->size = size; + + if ( size ) + { + exec->numFDefs = size->num_function_defs; + exec->maxFDefs = size->max_function_defs; + exec->numIDefs = size->num_instruction_defs; + exec->maxIDefs = size->max_instruction_defs; + exec->FDefs = size->function_defs; + exec->IDefs = size->instruction_defs; + exec->tt_metrics = size->ttmetrics; + exec->metrics = size->metrics; + + exec->maxFunc = size->max_func; + exec->maxIns = size->max_ins; + + for ( i = 0; i < TT_MAX_CODE_RANGES; i++ ) + exec->codeRangeTable[i] = size->codeRangeTable[i]; + + /* set graphics state */ + exec->GS = size->GS; + + exec->cvtSize = size->cvt_size; + exec->cvt = size->cvt; + + exec->storeSize = size->storage_size; + exec->storage = size->storage; + + exec->twilight = size->twilight; + + /* In case of multi-threading it can happen that the old size object */ + /* no longer exists, thus we must clear all glyph zone references. */ + ft_memset( &exec->zp0, 0, sizeof ( exec->zp0 ) ); + exec->zp1 = exec->zp0; + exec->zp2 = exec->zp0; + } + + /* XXX: We reserve a little more elements on the stack to deal safely */ + /* with broken fonts like arialbs, courbs, timesbs, etc. */ + tmp = exec->stackSize; + error = Update_Max( exec->memory, + &tmp, + sizeof ( FT_F26Dot6 ), + (void*)&exec->stack, + maxp->maxStackElements + 32 ); + exec->stackSize = (FT_UInt)tmp; + if ( error ) + return error; + + tmp = exec->glyphSize; + error = Update_Max( exec->memory, + &tmp, + sizeof ( FT_Byte ), + (void*)&exec->glyphIns, + maxp->maxSizeOfInstructions ); + exec->glyphSize = (FT_UShort)tmp; + if ( error ) + return error; + + exec->pts.n_points = 0; + exec->pts.n_contours = 0; + + exec->zp1 = exec->pts; + exec->zp2 = exec->pts; + exec->zp0 = exec->pts; + + exec->instruction_trap = FALSE; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Save_Context */ + /* */ + /* <Description> */ + /* Saves the code ranges in a `size' object. */ + /* */ + /* <Input> */ + /* exec :: A handle to the source execution context. */ + /* */ + /* <InOut> */ + /* size :: A handle to the target size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Save_Context( TT_ExecContext exec, + TT_Size size ) + { + FT_Int i; + + + /* XXXX: Will probably disappear soon with all the code range */ + /* management, which is now rather obsolete. */ + /* */ + size->num_function_defs = exec->numFDefs; + size->num_instruction_defs = exec->numIDefs; + + size->max_func = exec->maxFunc; + size->max_ins = exec->maxIns; + + for ( i = 0; i < TT_MAX_CODE_RANGES; i++ ) + size->codeRangeTable[i] = exec->codeRangeTable[i]; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Run_Context */ + /* */ + /* <Description> */ + /* Executes one or more instructions in the execution context. */ + /* */ + /* <Input> */ + /* debug :: A Boolean flag. If set, the function sets some internal */ + /* variables and returns immediately, otherwise TT_RunIns() */ + /* is called. */ + /* */ + /* This is commented out currently. */ + /* */ + /* <Input> */ + /* exec :: A handle to the target execution context. */ + /* */ + /* <Return> */ + /* TrueType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Run_Context( TT_ExecContext exec, + FT_Bool debug ) + { + FT_Error error; + + + if ( ( error = TT_Goto_CodeRange( exec, tt_coderange_glyph, 0 ) ) + != TT_Err_Ok ) + return error; + + exec->zp0 = exec->pts; + exec->zp1 = exec->pts; + exec->zp2 = exec->pts; + + exec->GS.gep0 = 1; + exec->GS.gep1 = 1; + exec->GS.gep2 = 1; + + exec->GS.projVector.x = 0x4000; + exec->GS.projVector.y = 0x0000; + + exec->GS.freeVector = exec->GS.projVector; + exec->GS.dualVector = exec->GS.projVector; + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + exec->GS.both_x_axis = TRUE; +#endif + + exec->GS.round_state = 1; + exec->GS.loop = 1; + + /* some glyphs leave something on the stack. so we clean it */ + /* before a new execution. */ + exec->top = 0; + exec->callTop = 0; + +#if 1 + FT_UNUSED( debug ); + + return exec->face->interpreter( exec ); +#else + if ( !debug ) + return TT_RunIns( exec ); + else + return TT_Err_Ok; +#endif + } + + + /* The default value for `scan_control' is documented as FALSE in the */ + /* TrueType specification. This is confusing since it implies a */ + /* Boolean value. However, this is not the case, thus both the */ + /* default values of our `scan_type' and `scan_control' fields (which */ + /* the documentation's `scan_control' variable is split into) are */ + /* zero. */ + + const TT_GraphicsState tt_default_graphics_state = + { + 0, 0, 0, + { 0x4000, 0 }, + { 0x4000, 0 }, + { 0x4000, 0 }, + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + TRUE, +#endif + + 1, 64, 1, + TRUE, 68, 0, 0, 9, 3, + 0, FALSE, 0, 1, 1, 1 + }; + + + /* documentation is in ttinterp.h */ + + FT_EXPORT_DEF( TT_ExecContext ) + TT_New_Context( TT_Driver driver ) + { + TT_ExecContext exec; + FT_Memory memory; + + + memory = driver->root.root.memory; + exec = driver->context; + + if ( !driver->context ) + { + FT_Error error; + + + /* allocate object */ + if ( FT_NEW( exec ) ) + goto Fail; + + /* initialize it; in case of error this deallocates `exec' too */ + error = Init_Context( exec, memory ); + if ( error ) + goto Fail; + + /* store it into the driver */ + driver->context = exec; + } + + return driver->context; + + Fail: + return NULL; + } + + + /*************************************************************************/ + /* */ + /* Before an opcode is executed, the interpreter verifies that there are */ + /* enough arguments on the stack, with the help of the `Pop_Push_Count' */ + /* table. */ + /* */ + /* For each opcode, the first column gives the number of arguments that */ + /* are popped from the stack; the second one gives the number of those */ + /* that are pushed in result. */ + /* */ + /* Opcodes which have a varying number of parameters in the data stream */ + /* (NPUSHB, NPUSHW) are handled specially; they have a negative value in */ + /* the `opcode_length' table, and the value in `Pop_Push_Count' is set */ + /* to zero. */ + /* */ + /*************************************************************************/ + + +#undef PACK +#define PACK( x, y ) ( ( x << 4 ) | y ) + + + static + const FT_Byte Pop_Push_Count[256] = + { + /* opcodes are gathered in groups of 16 */ + /* please keep the spaces as they are */ + + /* SVTCA y */ PACK( 0, 0 ), + /* SVTCA x */ PACK( 0, 0 ), + /* SPvTCA y */ PACK( 0, 0 ), + /* SPvTCA x */ PACK( 0, 0 ), + /* SFvTCA y */ PACK( 0, 0 ), + /* SFvTCA x */ PACK( 0, 0 ), + /* SPvTL // */ PACK( 2, 0 ), + /* SPvTL + */ PACK( 2, 0 ), + /* SFvTL // */ PACK( 2, 0 ), + /* SFvTL + */ PACK( 2, 0 ), + /* SPvFS */ PACK( 2, 0 ), + /* SFvFS */ PACK( 2, 0 ), + /* GPV */ PACK( 0, 2 ), + /* GFV */ PACK( 0, 2 ), + /* SFvTPv */ PACK( 0, 0 ), + /* ISECT */ PACK( 5, 0 ), + + /* SRP0 */ PACK( 1, 0 ), + /* SRP1 */ PACK( 1, 0 ), + /* SRP2 */ PACK( 1, 0 ), + /* SZP0 */ PACK( 1, 0 ), + /* SZP1 */ PACK( 1, 0 ), + /* SZP2 */ PACK( 1, 0 ), + /* SZPS */ PACK( 1, 0 ), + /* SLOOP */ PACK( 1, 0 ), + /* RTG */ PACK( 0, 0 ), + /* RTHG */ PACK( 0, 0 ), + /* SMD */ PACK( 1, 0 ), + /* ELSE */ PACK( 0, 0 ), + /* JMPR */ PACK( 1, 0 ), + /* SCvTCi */ PACK( 1, 0 ), + /* SSwCi */ PACK( 1, 0 ), + /* SSW */ PACK( 1, 0 ), + + /* DUP */ PACK( 1, 2 ), + /* POP */ PACK( 1, 0 ), + /* CLEAR */ PACK( 0, 0 ), + /* SWAP */ PACK( 2, 2 ), + /* DEPTH */ PACK( 0, 1 ), + /* CINDEX */ PACK( 1, 1 ), + /* MINDEX */ PACK( 1, 0 ), + /* AlignPTS */ PACK( 2, 0 ), + /* INS_$28 */ PACK( 0, 0 ), + /* UTP */ PACK( 1, 0 ), + /* LOOPCALL */ PACK( 2, 0 ), + /* CALL */ PACK( 1, 0 ), + /* FDEF */ PACK( 1, 0 ), + /* ENDF */ PACK( 0, 0 ), + /* MDAP[0] */ PACK( 1, 0 ), + /* MDAP[1] */ PACK( 1, 0 ), + + /* IUP[0] */ PACK( 0, 0 ), + /* IUP[1] */ PACK( 0, 0 ), + /* SHP[0] */ PACK( 0, 0 ), + /* SHP[1] */ PACK( 0, 0 ), + /* SHC[0] */ PACK( 1, 0 ), + /* SHC[1] */ PACK( 1, 0 ), + /* SHZ[0] */ PACK( 1, 0 ), + /* SHZ[1] */ PACK( 1, 0 ), + /* SHPIX */ PACK( 1, 0 ), + /* IP */ PACK( 0, 0 ), + /* MSIRP[0] */ PACK( 2, 0 ), + /* MSIRP[1] */ PACK( 2, 0 ), + /* AlignRP */ PACK( 0, 0 ), + /* RTDG */ PACK( 0, 0 ), + /* MIAP[0] */ PACK( 2, 0 ), + /* MIAP[1] */ PACK( 2, 0 ), + + /* NPushB */ PACK( 0, 0 ), + /* NPushW */ PACK( 0, 0 ), + /* WS */ PACK( 2, 0 ), + /* RS */ PACK( 1, 1 ), + /* WCvtP */ PACK( 2, 0 ), + /* RCvt */ PACK( 1, 1 ), + /* GC[0] */ PACK( 1, 1 ), + /* GC[1] */ PACK( 1, 1 ), + /* SCFS */ PACK( 2, 0 ), + /* MD[0] */ PACK( 2, 1 ), + /* MD[1] */ PACK( 2, 1 ), + /* MPPEM */ PACK( 0, 1 ), + /* MPS */ PACK( 0, 1 ), + /* FlipON */ PACK( 0, 0 ), + /* FlipOFF */ PACK( 0, 0 ), + /* DEBUG */ PACK( 1, 0 ), + + /* LT */ PACK( 2, 1 ), + /* LTEQ */ PACK( 2, 1 ), + /* GT */ PACK( 2, 1 ), + /* GTEQ */ PACK( 2, 1 ), + /* EQ */ PACK( 2, 1 ), + /* NEQ */ PACK( 2, 1 ), + /* ODD */ PACK( 1, 1 ), + /* EVEN */ PACK( 1, 1 ), + /* IF */ PACK( 1, 0 ), + /* EIF */ PACK( 0, 0 ), + /* AND */ PACK( 2, 1 ), + /* OR */ PACK( 2, 1 ), + /* NOT */ PACK( 1, 1 ), + /* DeltaP1 */ PACK( 1, 0 ), + /* SDB */ PACK( 1, 0 ), + /* SDS */ PACK( 1, 0 ), + + /* ADD */ PACK( 2, 1 ), + /* SUB */ PACK( 2, 1 ), + /* DIV */ PACK( 2, 1 ), + /* MUL */ PACK( 2, 1 ), + /* ABS */ PACK( 1, 1 ), + /* NEG */ PACK( 1, 1 ), + /* FLOOR */ PACK( 1, 1 ), + /* CEILING */ PACK( 1, 1 ), + /* ROUND[0] */ PACK( 1, 1 ), + /* ROUND[1] */ PACK( 1, 1 ), + /* ROUND[2] */ PACK( 1, 1 ), + /* ROUND[3] */ PACK( 1, 1 ), + /* NROUND[0] */ PACK( 1, 1 ), + /* NROUND[1] */ PACK( 1, 1 ), + /* NROUND[2] */ PACK( 1, 1 ), + /* NROUND[3] */ PACK( 1, 1 ), + + /* WCvtF */ PACK( 2, 0 ), + /* DeltaP2 */ PACK( 1, 0 ), + /* DeltaP3 */ PACK( 1, 0 ), + /* DeltaCn[0] */ PACK( 1, 0 ), + /* DeltaCn[1] */ PACK( 1, 0 ), + /* DeltaCn[2] */ PACK( 1, 0 ), + /* SROUND */ PACK( 1, 0 ), + /* S45Round */ PACK( 1, 0 ), + /* JROT */ PACK( 2, 0 ), + /* JROF */ PACK( 2, 0 ), + /* ROFF */ PACK( 0, 0 ), + /* INS_$7B */ PACK( 0, 0 ), + /* RUTG */ PACK( 0, 0 ), + /* RDTG */ PACK( 0, 0 ), + /* SANGW */ PACK( 1, 0 ), + /* AA */ PACK( 1, 0 ), + + /* FlipPT */ PACK( 0, 0 ), + /* FlipRgON */ PACK( 2, 0 ), + /* FlipRgOFF */ PACK( 2, 0 ), + /* INS_$83 */ PACK( 0, 0 ), + /* INS_$84 */ PACK( 0, 0 ), + /* ScanCTRL */ PACK( 1, 0 ), + /* SDPVTL[0] */ PACK( 2, 0 ), + /* SDPVTL[1] */ PACK( 2, 0 ), + /* GetINFO */ PACK( 1, 1 ), + /* IDEF */ PACK( 1, 0 ), + /* ROLL */ PACK( 3, 3 ), + /* MAX */ PACK( 2, 1 ), + /* MIN */ PACK( 2, 1 ), + /* ScanTYPE */ PACK( 1, 0 ), + /* InstCTRL */ PACK( 2, 0 ), + /* INS_$8F */ PACK( 0, 0 ), + + /* INS_$90 */ PACK( 0, 0 ), + /* INS_$91 */ PACK( 0, 0 ), + /* INS_$92 */ PACK( 0, 0 ), + /* INS_$93 */ PACK( 0, 0 ), + /* INS_$94 */ PACK( 0, 0 ), + /* INS_$95 */ PACK( 0, 0 ), + /* INS_$96 */ PACK( 0, 0 ), + /* INS_$97 */ PACK( 0, 0 ), + /* INS_$98 */ PACK( 0, 0 ), + /* INS_$99 */ PACK( 0, 0 ), + /* INS_$9A */ PACK( 0, 0 ), + /* INS_$9B */ PACK( 0, 0 ), + /* INS_$9C */ PACK( 0, 0 ), + /* INS_$9D */ PACK( 0, 0 ), + /* INS_$9E */ PACK( 0, 0 ), + /* INS_$9F */ PACK( 0, 0 ), + + /* INS_$A0 */ PACK( 0, 0 ), + /* INS_$A1 */ PACK( 0, 0 ), + /* INS_$A2 */ PACK( 0, 0 ), + /* INS_$A3 */ PACK( 0, 0 ), + /* INS_$A4 */ PACK( 0, 0 ), + /* INS_$A5 */ PACK( 0, 0 ), + /* INS_$A6 */ PACK( 0, 0 ), + /* INS_$A7 */ PACK( 0, 0 ), + /* INS_$A8 */ PACK( 0, 0 ), + /* INS_$A9 */ PACK( 0, 0 ), + /* INS_$AA */ PACK( 0, 0 ), + /* INS_$AB */ PACK( 0, 0 ), + /* INS_$AC */ PACK( 0, 0 ), + /* INS_$AD */ PACK( 0, 0 ), + /* INS_$AE */ PACK( 0, 0 ), + /* INS_$AF */ PACK( 0, 0 ), + + /* PushB[0] */ PACK( 0, 1 ), + /* PushB[1] */ PACK( 0, 2 ), + /* PushB[2] */ PACK( 0, 3 ), + /* PushB[3] */ PACK( 0, 4 ), + /* PushB[4] */ PACK( 0, 5 ), + /* PushB[5] */ PACK( 0, 6 ), + /* PushB[6] */ PACK( 0, 7 ), + /* PushB[7] */ PACK( 0, 8 ), + /* PushW[0] */ PACK( 0, 1 ), + /* PushW[1] */ PACK( 0, 2 ), + /* PushW[2] */ PACK( 0, 3 ), + /* PushW[3] */ PACK( 0, 4 ), + /* PushW[4] */ PACK( 0, 5 ), + /* PushW[5] */ PACK( 0, 6 ), + /* PushW[6] */ PACK( 0, 7 ), + /* PushW[7] */ PACK( 0, 8 ), + + /* MDRP[00] */ PACK( 1, 0 ), + /* MDRP[01] */ PACK( 1, 0 ), + /* MDRP[02] */ PACK( 1, 0 ), + /* MDRP[03] */ PACK( 1, 0 ), + /* MDRP[04] */ PACK( 1, 0 ), + /* MDRP[05] */ PACK( 1, 0 ), + /* MDRP[06] */ PACK( 1, 0 ), + /* MDRP[07] */ PACK( 1, 0 ), + /* MDRP[08] */ PACK( 1, 0 ), + /* MDRP[09] */ PACK( 1, 0 ), + /* MDRP[10] */ PACK( 1, 0 ), + /* MDRP[11] */ PACK( 1, 0 ), + /* MDRP[12] */ PACK( 1, 0 ), + /* MDRP[13] */ PACK( 1, 0 ), + /* MDRP[14] */ PACK( 1, 0 ), + /* MDRP[15] */ PACK( 1, 0 ), + + /* MDRP[16] */ PACK( 1, 0 ), + /* MDRP[17] */ PACK( 1, 0 ), + /* MDRP[18] */ PACK( 1, 0 ), + /* MDRP[19] */ PACK( 1, 0 ), + /* MDRP[20] */ PACK( 1, 0 ), + /* MDRP[21] */ PACK( 1, 0 ), + /* MDRP[22] */ PACK( 1, 0 ), + /* MDRP[23] */ PACK( 1, 0 ), + /* MDRP[24] */ PACK( 1, 0 ), + /* MDRP[25] */ PACK( 1, 0 ), + /* MDRP[26] */ PACK( 1, 0 ), + /* MDRP[27] */ PACK( 1, 0 ), + /* MDRP[28] */ PACK( 1, 0 ), + /* MDRP[29] */ PACK( 1, 0 ), + /* MDRP[30] */ PACK( 1, 0 ), + /* MDRP[31] */ PACK( 1, 0 ), + + /* MIRP[00] */ PACK( 2, 0 ), + /* MIRP[01] */ PACK( 2, 0 ), + /* MIRP[02] */ PACK( 2, 0 ), + /* MIRP[03] */ PACK( 2, 0 ), + /* MIRP[04] */ PACK( 2, 0 ), + /* MIRP[05] */ PACK( 2, 0 ), + /* MIRP[06] */ PACK( 2, 0 ), + /* MIRP[07] */ PACK( 2, 0 ), + /* MIRP[08] */ PACK( 2, 0 ), + /* MIRP[09] */ PACK( 2, 0 ), + /* MIRP[10] */ PACK( 2, 0 ), + /* MIRP[11] */ PACK( 2, 0 ), + /* MIRP[12] */ PACK( 2, 0 ), + /* MIRP[13] */ PACK( 2, 0 ), + /* MIRP[14] */ PACK( 2, 0 ), + /* MIRP[15] */ PACK( 2, 0 ), + + /* MIRP[16] */ PACK( 2, 0 ), + /* MIRP[17] */ PACK( 2, 0 ), + /* MIRP[18] */ PACK( 2, 0 ), + /* MIRP[19] */ PACK( 2, 0 ), + /* MIRP[20] */ PACK( 2, 0 ), + /* MIRP[21] */ PACK( 2, 0 ), + /* MIRP[22] */ PACK( 2, 0 ), + /* MIRP[23] */ PACK( 2, 0 ), + /* MIRP[24] */ PACK( 2, 0 ), + /* MIRP[25] */ PACK( 2, 0 ), + /* MIRP[26] */ PACK( 2, 0 ), + /* MIRP[27] */ PACK( 2, 0 ), + /* MIRP[28] */ PACK( 2, 0 ), + /* MIRP[29] */ PACK( 2, 0 ), + /* MIRP[30] */ PACK( 2, 0 ), + /* MIRP[31] */ PACK( 2, 0 ) + }; + + +#ifdef FT_DEBUG_LEVEL_TRACE + + static + const char* const opcode_name[256] = + { + "SVTCA y", + "SVTCA x", + "SPvTCA y", + "SPvTCA x", + "SFvTCA y", + "SFvTCA x", + "SPvTL ||", + "SPvTL +", + "SFvTL ||", + "SFvTL +", + "SPvFS", + "SFvFS", + "GPV", + "GFV", + "SFvTPv", + "ISECT", + + "SRP0", + "SRP1", + "SRP2", + "SZP0", + "SZP1", + "SZP2", + "SZPS", + "SLOOP", + "RTG", + "RTHG", + "SMD", + "ELSE", + "JMPR", + "SCvTCi", + "SSwCi", + "SSW", + + "DUP", + "POP", + "CLEAR", + "SWAP", + "DEPTH", + "CINDEX", + "MINDEX", + "AlignPTS", + "INS_$28", + "UTP", + "LOOPCALL", + "CALL", + "FDEF", + "ENDF", + "MDAP[0]", + "MDAP[1]", + + "IUP[0]", + "IUP[1]", + "SHP[0]", + "SHP[1]", + "SHC[0]", + "SHC[1]", + "SHZ[0]", + "SHZ[1]", + "SHPIX", + "IP", + "MSIRP[0]", + "MSIRP[1]", + "AlignRP", + "RTDG", + "MIAP[0]", + "MIAP[1]", + + "NPushB", + "NPushW", + "WS", + "RS", + "WCvtP", + "RCvt", + "GC[0]", + "GC[1]", + "SCFS", + "MD[0]", + "MD[1]", + "MPPEM", + "MPS", + "FlipON", + "FlipOFF", + "DEBUG", + + "LT", + "LTEQ", + "GT", + "GTEQ", + "EQ", + "NEQ", + "ODD", + "EVEN", + "IF", + "EIF", + "AND", + "OR", + "NOT", + "DeltaP1", + "SDB", + "SDS", + + "ADD", + "SUB", + "DIV", + "MUL", + "ABS", + "NEG", + "FLOOR", + "CEILING", + "ROUND[0]", + "ROUND[1]", + "ROUND[2]", + "ROUND[3]", + "NROUND[0]", + "NROUND[1]", + "NROUND[2]", + "NROUND[3]", + + "WCvtF", + "DeltaP2", + "DeltaP3", + "DeltaCn[0]", + "DeltaCn[1]", + "DeltaCn[2]", + "SROUND", + "S45Round", + "JROT", + "JROF", + "ROFF", + "INS_$7B", + "RUTG", + "RDTG", + "SANGW", + "AA", + + "FlipPT", + "FlipRgON", + "FlipRgOFF", + "INS_$83", + "INS_$84", + "ScanCTRL", + "SDVPTL[0]", + "SDVPTL[1]", + "GetINFO", + "IDEF", + "ROLL", + "MAX", + "MIN", + "ScanTYPE", + "InstCTRL", + "INS_$8F", + + "INS_$90", + "INS_$91", + "INS_$92", + "INS_$93", + "INS_$94", + "INS_$95", + "INS_$96", + "INS_$97", + "INS_$98", + "INS_$99", + "INS_$9A", + "INS_$9B", + "INS_$9C", + "INS_$9D", + "INS_$9E", + "INS_$9F", + + "INS_$A0", + "INS_$A1", + "INS_$A2", + "INS_$A3", + "INS_$A4", + "INS_$A5", + "INS_$A6", + "INS_$A7", + "INS_$A8", + "INS_$A9", + "INS_$AA", + "INS_$AB", + "INS_$AC", + "INS_$AD", + "INS_$AE", + "INS_$AF", + + "PushB[0]", + "PushB[1]", + "PushB[2]", + "PushB[3]", + "PushB[4]", + "PushB[5]", + "PushB[6]", + "PushB[7]", + "PushW[0]", + "PushW[1]", + "PushW[2]", + "PushW[3]", + "PushW[4]", + "PushW[5]", + "PushW[6]", + "PushW[7]", + + "MDRP[00]", + "MDRP[01]", + "MDRP[02]", + "MDRP[03]", + "MDRP[04]", + "MDRP[05]", + "MDRP[06]", + "MDRP[07]", + "MDRP[08]", + "MDRP[09]", + "MDRP[10]", + "MDRP[11]", + "MDRP[12]", + "MDRP[13]", + "MDRP[14]", + "MDRP[15]", + + "MDRP[16]", + "MDRP[17]", + "MDRP[18]", + "MDRP[19]", + "MDRP[20]", + "MDRP[21]", + "MDRP[22]", + "MDRP[23]", + "MDRP[24]", + "MDRP[25]", + "MDRP[26]", + "MDRP[27]", + "MDRP[28]", + "MDRP[29]", + "MDRP[30]", + "MDRP[31]", + + "MIRP[00]", + "MIRP[01]", + "MIRP[02]", + "MIRP[03]", + "MIRP[04]", + "MIRP[05]", + "MIRP[06]", + "MIRP[07]", + "MIRP[08]", + "MIRP[09]", + "MIRP[10]", + "MIRP[11]", + "MIRP[12]", + "MIRP[13]", + "MIRP[14]", + "MIRP[15]", + + "MIRP[16]", + "MIRP[17]", + "MIRP[18]", + "MIRP[19]", + "MIRP[20]", + "MIRP[21]", + "MIRP[22]", + "MIRP[23]", + "MIRP[24]", + "MIRP[25]", + "MIRP[26]", + "MIRP[27]", + "MIRP[28]", + "MIRP[29]", + "MIRP[30]", + "MIRP[31]" + }; + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + static + const FT_Char opcode_length[256] = + { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + -1,-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 2, 3, 4, 5, 6, 7, 8, 9, 3, 5, 7, 9, 11,13,15,17, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + }; + +#undef PACK + +#if 1 + + static FT_Int32 + TT_MulFix14( FT_Int32 a, + FT_Int b ) + { + FT_Int32 sign; + FT_UInt32 ah, al, mid, lo, hi; + + + sign = a ^ b; + + if ( a < 0 ) + a = -a; + if ( b < 0 ) + b = -b; + + ah = (FT_UInt32)( ( a >> 16 ) & 0xFFFFU ); + al = (FT_UInt32)( a & 0xFFFFU ); + + lo = al * b; + mid = ah * b; + hi = mid >> 16; + mid = ( mid << 16 ) + ( 1 << 13 ); /* rounding */ + lo += mid; + if ( lo < mid ) + hi += 1; + + mid = ( lo >> 14 ) | ( hi << 18 ); + + return sign >= 0 ? (FT_Int32)mid : -(FT_Int32)mid; + } + +#else + + /* compute (a*b)/2^14 with maximal accuracy and rounding */ + static FT_Int32 + TT_MulFix14( FT_Int32 a, + FT_Int b ) + { + FT_Int32 m, s, hi; + FT_UInt32 l, lo; + + + /* compute ax*bx as 64-bit value */ + l = (FT_UInt32)( ( a & 0xFFFFU ) * b ); + m = ( a >> 16 ) * b; + + lo = l + (FT_UInt32)( m << 16 ); + hi = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo < l ); + + /* divide the result by 2^14 with rounding */ + s = hi >> 31; + l = lo + (FT_UInt32)s; + hi += s + ( l < lo ); + lo = l; + + l = lo + 0x2000U; + hi += l < lo; + + return ( hi << 18 ) | ( l >> 14 ); + } +#endif + + + /* compute (ax*bx+ay*by)/2^14 with maximal accuracy and rounding */ + static FT_Int32 + TT_DotFix14( FT_Int32 ax, + FT_Int32 ay, + FT_Int bx, + FT_Int by ) + { + FT_Int32 m, s, hi1, hi2, hi; + FT_UInt32 l, lo1, lo2, lo; + + + /* compute ax*bx as 64-bit value */ + l = (FT_UInt32)( ( ax & 0xFFFFU ) * bx ); + m = ( ax >> 16 ) * bx; + + lo1 = l + (FT_UInt32)( m << 16 ); + hi1 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo1 < l ); + + /* compute ay*by as 64-bit value */ + l = (FT_UInt32)( ( ay & 0xFFFFU ) * by ); + m = ( ay >> 16 ) * by; + + lo2 = l + (FT_UInt32)( m << 16 ); + hi2 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo2 < l ); + + /* add them */ + lo = lo1 + lo2; + hi = hi1 + hi2 + ( lo < lo1 ); + + /* divide the result by 2^14 with rounding */ + s = hi >> 31; + l = lo + (FT_UInt32)s; + hi += s + ( l < lo ); + lo = l; + + l = lo + 0x2000U; + hi += ( l < lo ); + + return ( hi << 18 ) | ( l >> 14 ); + } + + + /* return length of given vector */ + +#if 0 + + static FT_Int32 + TT_VecLen( FT_Int32 x, + FT_Int32 y ) + { + FT_Int32 m, hi1, hi2, hi; + FT_UInt32 l, lo1, lo2, lo; + + + /* compute x*x as 64-bit value */ + lo = (FT_UInt32)( x & 0xFFFFU ); + hi = x >> 16; + + l = lo * lo; + m = hi * lo; + hi = hi * hi; + + lo1 = l + (FT_UInt32)( m << 17 ); + hi1 = hi + ( m >> 15 ) + ( lo1 < l ); + + /* compute y*y as 64-bit value */ + lo = (FT_UInt32)( y & 0xFFFFU ); + hi = y >> 16; + + l = lo * lo; + m = hi * lo; + hi = hi * hi; + + lo2 = l + (FT_UInt32)( m << 17 ); + hi2 = hi + ( m >> 15 ) + ( lo2 < l ); + + /* add them to get 'x*x+y*y' as 64-bit value */ + lo = lo1 + lo2; + hi = hi1 + hi2 + ( lo < lo1 ); + + /* compute the square root of this value */ + { + FT_UInt32 root, rem, test_div; + FT_Int count; + + + root = 0; + + { + rem = 0; + count = 32; + do + { + rem = ( rem << 2 ) | ( (FT_UInt32)hi >> 30 ); + hi = ( hi << 2 ) | ( lo >> 30 ); + lo <<= 2; + root <<= 1; + test_div = ( root << 1 ) + 1; + + if ( rem >= test_div ) + { + rem -= test_div; + root += 1; + } + } while ( --count ); + } + + return (FT_Int32)root; + } + } + +#else + + /* this version uses FT_Vector_Length which computes the same value */ + /* much, much faster.. */ + /* */ + static FT_F26Dot6 + TT_VecLen( FT_F26Dot6 X, + FT_F26Dot6 Y ) + { + FT_Vector v; + + + v.x = X; + v.y = Y; + + return FT_Vector_Length( &v ); + } + +#endif + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Current_Ratio */ + /* */ + /* <Description> */ + /* Returns the current aspect ratio scaling factor depending on the */ + /* projection vector's state and device resolutions. */ + /* */ + /* <Return> */ + /* The aspect ratio in 16.16 format, always <= 1.0 . */ + /* */ + static FT_Long + Current_Ratio( EXEC_OP ) + { + if ( !CUR.tt_metrics.ratio ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio; + else + CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio; + } + else +#endif + { + if ( CUR.GS.projVector.y == 0 ) + CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio; + + else if ( CUR.GS.projVector.x == 0 ) + CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio; + + else + { + FT_Long x, y; + + + x = TT_MULDIV( CUR.GS.projVector.x, + CUR.tt_metrics.x_ratio, 0x4000 ); + y = TT_MULDIV( CUR.GS.projVector.y, + CUR.tt_metrics.y_ratio, 0x4000 ); + CUR.tt_metrics.ratio = TT_VecLen( x, y ); + } + } + } + return CUR.tt_metrics.ratio; + } + + + static FT_Long + Current_Ppem( EXEC_OP ) + { + return TT_MULFIX( CUR.tt_metrics.ppem, CURRENT_Ratio() ); + } + + + /*************************************************************************/ + /* */ + /* Functions related to the control value table (CVT). */ + /* */ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_F26Dot6 ) + Read_CVT( EXEC_OP_ FT_ULong idx ) + { + return CUR.cvt[idx]; + } + + + FT_CALLBACK_DEF( FT_F26Dot6 ) + Read_CVT_Stretched( EXEC_OP_ FT_ULong idx ) + { + return TT_MULFIX( CUR.cvt[idx], CURRENT_Ratio() ); + } + + + FT_CALLBACK_DEF( void ) + Write_CVT( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] = value; + } + + + FT_CALLBACK_DEF( void ) + Write_CVT_Stretched( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] = FT_DivFix( value, CURRENT_Ratio() ); + } + + + FT_CALLBACK_DEF( void ) + Move_CVT( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] += value; + } + + + FT_CALLBACK_DEF( void ) + Move_CVT_Stretched( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] += FT_DivFix( value, CURRENT_Ratio() ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* GetShortIns */ + /* */ + /* <Description> */ + /* Returns a short integer taken from the instruction stream at */ + /* address IP. */ + /* */ + /* <Return> */ + /* Short read at code[IP]. */ + /* */ + /* <Note> */ + /* This one could become a macro. */ + /* */ + static FT_Short + GetShortIns( EXEC_OP ) + { + /* Reading a byte stream so there is no endianess (DaveP) */ + CUR.IP += 2; + return (FT_Short)( ( CUR.code[CUR.IP - 2] << 8 ) + + CUR.code[CUR.IP - 1] ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Ins_Goto_CodeRange */ + /* */ + /* <Description> */ + /* Goes to a certain code range in the instruction stream. */ + /* */ + /* <Input> */ + /* aRange :: The index of the code range. */ + /* */ + /* aIP :: The new IP address in the code range. */ + /* */ + /* <Return> */ + /* SUCCESS or FAILURE. */ + /* */ + static FT_Bool + Ins_Goto_CodeRange( EXEC_OP_ FT_Int aRange, + FT_ULong aIP ) + { + TT_CodeRange* range; + + + if ( aRange < 1 || aRange > 3 ) + { + CUR.error = TT_Err_Bad_Argument; + return FAILURE; + } + + range = &CUR.codeRangeTable[aRange - 1]; + + if ( range->base == NULL ) /* invalid coderange */ + { + CUR.error = TT_Err_Invalid_CodeRange; + return FAILURE; + } + + /* NOTE: Because the last instruction of a program may be a CALL */ + /* which will return to the first byte *after* the code */ + /* range, we test for AIP <= Size, instead of AIP < Size. */ + + if ( aIP > range->size ) + { + CUR.error = TT_Err_Code_Overflow; + return FAILURE; + } + + CUR.code = range->base; + CUR.codeSize = range->size; + CUR.IP = aIP; + CUR.curRange = aRange; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Direct_Move */ + /* */ + /* <Description> */ + /* Moves a point by a given distance along the freedom vector. The */ + /* point will be `touched'. */ + /* */ + /* <Input> */ + /* point :: The index of the point to move. */ + /* */ + /* distance :: The distance to apply. */ + /* */ + /* <InOut> */ + /* zone :: The affected glyph zone. */ + /* */ + static void + Direct_Move( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_F26Dot6 v; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_ASSERT( !CUR.face->unpatented_hinting ); +#endif + + v = CUR.GS.freeVector.x; + + if ( v != 0 ) + { + zone->cur[point].x += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + + zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + + v = CUR.GS.freeVector.y; + + if ( v != 0 ) + { + zone->cur[point].y += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + + zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Direct_Move_Orig */ + /* */ + /* <Description> */ + /* Moves the *original* position of a point by a given distance along */ + /* the freedom vector. Obviously, the point will not be `touched'. */ + /* */ + /* <Input> */ + /* point :: The index of the point to move. */ + /* */ + /* distance :: The distance to apply. */ + /* */ + /* <InOut> */ + /* zone :: The affected glyph zone. */ + /* */ + static void + Direct_Move_Orig( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_F26Dot6 v; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_ASSERT( !CUR.face->unpatented_hinting ); +#endif + + v = CUR.GS.freeVector.x; + + if ( v != 0 ) + zone->org[point].x += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + + v = CUR.GS.freeVector.y; + + if ( v != 0 ) + zone->org[point].y += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + } + + + /*************************************************************************/ + /* */ + /* Special versions of Direct_Move() */ + /* */ + /* The following versions are used whenever both vectors are both */ + /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ + /* */ + /*************************************************************************/ + + + static void + Direct_Move_X( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->cur[point].x += distance; + zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + + + static void + Direct_Move_Y( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->cur[point].y += distance; + zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + + + /*************************************************************************/ + /* */ + /* Special versions of Direct_Move_Orig() */ + /* */ + /* The following versions are used whenever both vectors are both */ + /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ + /* */ + /*************************************************************************/ + + + static void + Direct_Move_Orig_X( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->org[point].x += distance; + } + + + static void + Direct_Move_Orig_Y( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->org[point].y += distance; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_None */ + /* */ + /* <Description> */ + /* Does not round, but adds engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance (not) to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* The compensated distance. */ + /* */ + /* <Note> */ + /* The TrueType specification says very few about the relationship */ + /* between rounding and engine compensation. However, it seems from */ + /* the description of super round that we should add the compensation */ + /* before rounding. */ + /* */ + static FT_F26Dot6 + Round_None( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation; + if ( distance && val < 0 ) + val = 0; + } + else + { + val = distance - compensation; + if ( val > 0 ) + val = 0; + } + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_To_Grid */ + /* */ + /* <Description> */ + /* Rounds value to grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_To_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation + 32; + if ( distance && val > 0 ) + val &= ~63; + else + val = 0; + } + else + { + val = -FT_PIX_ROUND( compensation - distance ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_To_Half_Grid */ + /* */ + /* <Description> */ + /* Rounds value to half grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_To_Half_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = FT_PIX_FLOOR( distance + compensation ) + 32; + if ( distance && val < 0 ) + val = 0; + } + else + { + val = -( FT_PIX_FLOOR( compensation - distance ) + 32 ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_Down_To_Grid */ + /* */ + /* <Description> */ + /* Rounds value down to grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_Down_To_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation; + if ( distance && val > 0 ) + val &= ~63; + else + val = 0; + } + else + { + val = -( ( compensation - distance ) & -64 ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_Up_To_Grid */ + /* */ + /* <Description> */ + /* Rounds value up to grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_Up_To_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation + 63; + if ( distance && val > 0 ) + val &= ~63; + else + val = 0; + } + else + { + val = - FT_PIX_CEIL( compensation - distance ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_To_Double_Grid */ + /* */ + /* <Description> */ + /* Rounds value to double grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_To_Double_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation + 16; + if ( distance && val > 0 ) + val &= ~31; + else + val = 0; + } + else + { + val = -FT_PAD_ROUND( compensation - distance, 32 ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_Super */ + /* */ + /* <Description> */ + /* Super-rounds value to grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + /* <Note> */ + /* The TrueType specification says very few about the relationship */ + /* between rounding and engine compensation. However, it seems from */ + /* the description of super round that we should add the compensation */ + /* before rounding. */ + /* */ + static FT_F26Dot6 + Round_Super( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + + if ( distance >= 0 ) + { + val = ( distance - CUR.phase + CUR.threshold + compensation ) & + -CUR.period; + if ( distance && val < 0 ) + val = 0; + val += CUR.phase; + } + else + { + val = -( ( CUR.threshold - CUR.phase - distance + compensation ) & + -CUR.period ); + if ( val > 0 ) + val = 0; + val -= CUR.phase; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Round_Super_45 */ + /* */ + /* <Description> */ + /* Super-rounds value to grid after adding engine compensation. */ + /* */ + /* <Input> */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* <Return> */ + /* Rounded distance. */ + /* */ + /* <Note> */ + /* There is a separate function for Round_Super_45() as we may need */ + /* greater precision. */ + /* */ + static FT_F26Dot6 + Round_Super_45( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + + if ( distance >= 0 ) + { + val = ( ( distance - CUR.phase + CUR.threshold + compensation ) / + CUR.period ) * CUR.period; + if ( distance && val < 0 ) + val = 0; + val += CUR.phase; + } + else + { + val = -( ( ( CUR.threshold - CUR.phase - distance + compensation ) / + CUR.period ) * CUR.period ); + if ( val > 0 ) + val = 0; + val -= CUR.phase; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Compute_Round */ + /* */ + /* <Description> */ + /* Sets the rounding mode. */ + /* */ + /* <Input> */ + /* round_mode :: The rounding mode to be used. */ + /* */ + static void + Compute_Round( EXEC_OP_ FT_Byte round_mode ) + { + switch ( round_mode ) + { + case TT_Round_Off: + CUR.func_round = (TT_Round_Func)Round_None; + break; + + case TT_Round_To_Grid: + CUR.func_round = (TT_Round_Func)Round_To_Grid; + break; + + case TT_Round_Up_To_Grid: + CUR.func_round = (TT_Round_Func)Round_Up_To_Grid; + break; + + case TT_Round_Down_To_Grid: + CUR.func_round = (TT_Round_Func)Round_Down_To_Grid; + break; + + case TT_Round_To_Half_Grid: + CUR.func_round = (TT_Round_Func)Round_To_Half_Grid; + break; + + case TT_Round_To_Double_Grid: + CUR.func_round = (TT_Round_Func)Round_To_Double_Grid; + break; + + case TT_Round_Super: + CUR.func_round = (TT_Round_Func)Round_Super; + break; + + case TT_Round_Super_45: + CUR.func_round = (TT_Round_Func)Round_Super_45; + break; + } + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* SetSuperRound */ + /* */ + /* <Description> */ + /* Sets Super Round parameters. */ + /* */ + /* <Input> */ + /* GridPeriod :: Grid period */ + /* selector :: SROUND opcode */ + /* */ + static void + SetSuperRound( EXEC_OP_ FT_F26Dot6 GridPeriod, + FT_Long selector ) + { + switch ( (FT_Int)( selector & 0xC0 ) ) + { + case 0: + CUR.period = GridPeriod / 2; + break; + + case 0x40: + CUR.period = GridPeriod; + break; + + case 0x80: + CUR.period = GridPeriod * 2; + break; + + /* This opcode is reserved, but... */ + + case 0xC0: + CUR.period = GridPeriod; + break; + } + + switch ( (FT_Int)( selector & 0x30 ) ) + { + case 0: + CUR.phase = 0; + break; + + case 0x10: + CUR.phase = CUR.period / 4; + break; + + case 0x20: + CUR.phase = CUR.period / 2; + break; + + case 0x30: + CUR.phase = CUR.period * 3 / 4; + break; + } + + if ( ( selector & 0x0F ) == 0 ) + CUR.threshold = CUR.period - 1; + else + CUR.threshold = ( (FT_Int)( selector & 0x0F ) - 4 ) * CUR.period / 8; + + CUR.period /= 256; + CUR.phase /= 256; + CUR.threshold /= 256; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Project */ + /* */ + /* <Description> */ + /* Computes the projection of vector given by (v2-v1) along the */ + /* current projection vector. */ + /* */ + /* <Input> */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* <Return> */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Project( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_ASSERT( !CUR.face->unpatented_hinting ); +#endif + + return TT_DotFix14( (FT_UInt32)dx, (FT_UInt32)dy, + CUR.GS.projVector.x, + CUR.GS.projVector.y ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Dual_Project */ + /* */ + /* <Description> */ + /* Computes the projection of the vector given by (v2-v1) along the */ + /* current dual vector. */ + /* */ + /* <Input> */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* <Return> */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Dual_Project( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { + return TT_DotFix14( (FT_UInt32)dx, (FT_UInt32)dy, + CUR.GS.dualVector.x, + CUR.GS.dualVector.y ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Project_x */ + /* */ + /* <Description> */ + /* Computes the projection of the vector given by (v2-v1) along the */ + /* horizontal axis. */ + /* */ + /* <Input> */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* <Return> */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Project_x( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { + FT_UNUSED_EXEC; + FT_UNUSED( dy ); + + return dx; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Project_y */ + /* */ + /* <Description> */ + /* Computes the projection of the vector given by (v2-v1) along the */ + /* vertical axis. */ + /* */ + /* <Input> */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* <Return> */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Project_y( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { + FT_UNUSED_EXEC; + FT_UNUSED( dx ); + + return dy; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Compute_Funcs */ + /* */ + /* <Description> */ + /* Computes the projection and movement function pointers according */ + /* to the current graphics state. */ + /* */ + static void + Compute_Funcs( EXEC_OP ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + /* If both vectors point rightwards along the x axis, set */ + /* `both-x-axis' true, otherwise set it false. The x values only */ + /* need be tested because the vector has been normalised to a unit */ + /* vector of length 0x4000 = unity. */ + CUR.GS.both_x_axis = (FT_Bool)( CUR.GS.projVector.x == 0x4000 && + CUR.GS.freeVector.x == 0x4000 ); + + /* Throw away projection and freedom vector information */ + /* because the patents don't allow them to be stored. */ + /* The relevant US Patents are 5155805 and 5325479. */ + CUR.GS.projVector.x = 0; + CUR.GS.projVector.y = 0; + CUR.GS.freeVector.x = 0; + CUR.GS.freeVector.y = 0; + + if ( CUR.GS.both_x_axis ) + { + CUR.func_project = Project_x; + CUR.func_move = Direct_Move_X; + CUR.func_move_orig = Direct_Move_Orig_X; + } + else + { + CUR.func_project = Project_y; + CUR.func_move = Direct_Move_Y; + CUR.func_move_orig = Direct_Move_Orig_Y; + } + + if ( CUR.GS.dualVector.x == 0x4000 ) + CUR.func_dualproj = Project_x; + else + { + if ( CUR.GS.dualVector.y == 0x4000 ) + CUR.func_dualproj = Project_y; + else + CUR.func_dualproj = Dual_Project; + } + + /* Force recalculation of cached aspect ratio */ + CUR.tt_metrics.ratio = 0; + + return; + } +#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING */ + + if ( CUR.GS.freeVector.x == 0x4000 ) + CUR.F_dot_P = CUR.GS.projVector.x * 0x10000L; + else + { + if ( CUR.GS.freeVector.y == 0x4000 ) + CUR.F_dot_P = CUR.GS.projVector.y * 0x10000L; + else + CUR.F_dot_P = (FT_Long)CUR.GS.projVector.x * CUR.GS.freeVector.x * 4 + + (FT_Long)CUR.GS.projVector.y * CUR.GS.freeVector.y * 4; + } + + if ( CUR.GS.projVector.x == 0x4000 ) + CUR.func_project = (TT_Project_Func)Project_x; + else + { + if ( CUR.GS.projVector.y == 0x4000 ) + CUR.func_project = (TT_Project_Func)Project_y; + else + CUR.func_project = (TT_Project_Func)Project; + } + + if ( CUR.GS.dualVector.x == 0x4000 ) + CUR.func_dualproj = (TT_Project_Func)Project_x; + else + { + if ( CUR.GS.dualVector.y == 0x4000 ) + CUR.func_dualproj = (TT_Project_Func)Project_y; + else + CUR.func_dualproj = (TT_Project_Func)Dual_Project; + } + + CUR.func_move = (TT_Move_Func)Direct_Move; + CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig; + + if ( CUR.F_dot_P == 0x40000000L ) + { + if ( CUR.GS.freeVector.x == 0x4000 ) + { + CUR.func_move = (TT_Move_Func)Direct_Move_X; + CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_X; + } + else + { + if ( CUR.GS.freeVector.y == 0x4000 ) + { + CUR.func_move = (TT_Move_Func)Direct_Move_Y; + CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_Y; + } + } + } + + /* at small sizes, F_dot_P can become too small, resulting */ + /* in overflows and `spikes' in a number of glyphs like `w'. */ + + if ( FT_ABS( CUR.F_dot_P ) < 0x4000000L ) + CUR.F_dot_P = 0x40000000L; + + /* Disable cached aspect ratio */ + CUR.tt_metrics.ratio = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Normalize */ + /* */ + /* <Description> */ + /* Norms a vector. */ + /* */ + /* <Input> */ + /* Vx :: The horizontal input vector coordinate. */ + /* Vy :: The vertical input vector coordinate. */ + /* */ + /* <Output> */ + /* R :: The normed unit vector. */ + /* */ + /* <Return> */ + /* Returns FAILURE if a vector parameter is zero. */ + /* */ + /* <Note> */ + /* In case Vx and Vy are both zero, Normalize() returns SUCCESS, and */ + /* R is undefined. */ + /* */ + + + static FT_Bool + Normalize( EXEC_OP_ FT_F26Dot6 Vx, + FT_F26Dot6 Vy, + FT_UnitVector* R ) + { + FT_F26Dot6 W; + FT_Bool S1, S2; + + FT_UNUSED_EXEC; + + + if ( FT_ABS( Vx ) < 0x10000L && FT_ABS( Vy ) < 0x10000L ) + { + Vx *= 0x100; + Vy *= 0x100; + + W = TT_VecLen( Vx, Vy ); + + if ( W == 0 ) + { + /* XXX: UNDOCUMENTED! It seems that it is possible to try */ + /* to normalize the vector (0,0). Return immediately. */ + return SUCCESS; + } + + R->x = (FT_F2Dot14)FT_MulDiv( Vx, 0x4000L, W ); + R->y = (FT_F2Dot14)FT_MulDiv( Vy, 0x4000L, W ); + + return SUCCESS; + } + + W = TT_VecLen( Vx, Vy ); + + Vx = FT_MulDiv( Vx, 0x4000L, W ); + Vy = FT_MulDiv( Vy, 0x4000L, W ); + + W = Vx * Vx + Vy * Vy; + + /* Now, we want that Sqrt( W ) = 0x4000 */ + /* Or 0x10000000 <= W < 0x10004000 */ + + if ( Vx < 0 ) + { + Vx = -Vx; + S1 = TRUE; + } + else + S1 = FALSE; + + if ( Vy < 0 ) + { + Vy = -Vy; + S2 = TRUE; + } + else + S2 = FALSE; + + while ( W < 0x10000000L ) + { + /* We need to increase W by a minimal amount */ + if ( Vx < Vy ) + Vx++; + else + Vy++; + + W = Vx * Vx + Vy * Vy; + } + + while ( W >= 0x10004000L ) + { + /* We need to decrease W by a minimal amount */ + if ( Vx < Vy ) + Vx--; + else + Vy--; + + W = Vx * Vx + Vy * Vy; + } + + /* Note that in various cases, we can only */ + /* compute a Sqrt(W) of 0x3FFF, eg. Vx = Vy */ + + if ( S1 ) + Vx = -Vx; + + if ( S2 ) + Vy = -Vy; + + R->x = (FT_F2Dot14)Vx; /* Type conversion */ + R->y = (FT_F2Dot14)Vy; /* Type conversion */ + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* Here we start with the implementation of the various opcodes. */ + /* */ + /*************************************************************************/ + + + static FT_Bool + Ins_SxVTL( EXEC_OP_ FT_UShort aIdx1, + FT_UShort aIdx2, + FT_Int aOpc, + FT_UnitVector* Vec ) + { + FT_Long A, B, C; + FT_Vector* p1; + FT_Vector* p2; + + + if ( BOUNDS( aIdx1, CUR.zp2.n_points ) || + BOUNDS( aIdx2, CUR.zp1.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return FAILURE; + } + + p1 = CUR.zp1.cur + aIdx2; + p2 = CUR.zp2.cur + aIdx1; + + A = p1->x - p2->x; + B = p1->y - p2->y; + + if ( ( aOpc & 1 ) != 0 ) + { + C = B; /* counter clockwise rotation */ + B = A; + A = -C; + } + + NORMalize( A, B, Vec ); + + return SUCCESS; + } + + + /* When not using the big switch statements, the interpreter uses a */ + /* call table defined later below in this source. Each opcode must */ + /* thus have a corresponding function, even trivial ones. */ + /* */ + /* They are all defined there. */ + +#define DO_SVTCA \ + { \ + FT_Short A, B; \ + \ + \ + A = (FT_Short)( CUR.opcode & 1 ) << 14; \ + B = A ^ (FT_Short)0x4000; \ + \ + CUR.GS.freeVector.x = A; \ + CUR.GS.projVector.x = A; \ + CUR.GS.dualVector.x = A; \ + \ + CUR.GS.freeVector.y = B; \ + CUR.GS.projVector.y = B; \ + CUR.GS.dualVector.y = B; \ + \ + COMPUTE_Funcs(); \ + } + + +#define DO_SPVTCA \ + { \ + FT_Short A, B; \ + \ + \ + A = (FT_Short)( CUR.opcode & 1 ) << 14; \ + B = A ^ (FT_Short)0x4000; \ + \ + CUR.GS.projVector.x = A; \ + CUR.GS.dualVector.x = A; \ + \ + CUR.GS.projVector.y = B; \ + CUR.GS.dualVector.y = B; \ + \ + GUESS_VECTOR( freeVector ); \ + \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVTCA \ + { \ + FT_Short A, B; \ + \ + \ + A = (FT_Short)( CUR.opcode & 1 ) << 14; \ + B = A ^ (FT_Short)0x4000; \ + \ + CUR.GS.freeVector.x = A; \ + CUR.GS.freeVector.y = B; \ + \ + GUESS_VECTOR( projVector ); \ + \ + COMPUTE_Funcs(); \ + } + + +#define DO_SPVTL \ + if ( INS_SxVTL( (FT_UShort)args[1], \ + (FT_UShort)args[0], \ + CUR.opcode, \ + &CUR.GS.projVector ) == SUCCESS ) \ + { \ + CUR.GS.dualVector = CUR.GS.projVector; \ + GUESS_VECTOR( freeVector ); \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVTL \ + if ( INS_SxVTL( (FT_UShort)args[1], \ + (FT_UShort)args[0], \ + CUR.opcode, \ + &CUR.GS.freeVector ) == SUCCESS ) \ + { \ + GUESS_VECTOR( projVector ); \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVTPV \ + GUESS_VECTOR( projVector ); \ + CUR.GS.freeVector = CUR.GS.projVector; \ + COMPUTE_Funcs(); + + +#define DO_SPVFS \ + { \ + FT_Short S; \ + FT_Long X, Y; \ + \ + \ + /* Only use low 16bits, then sign extend */ \ + S = (FT_Short)args[1]; \ + Y = (FT_Long)S; \ + S = (FT_Short)args[0]; \ + X = (FT_Long)S; \ + \ + NORMalize( X, Y, &CUR.GS.projVector ); \ + \ + CUR.GS.dualVector = CUR.GS.projVector; \ + GUESS_VECTOR( freeVector ); \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVFS \ + { \ + FT_Short S; \ + FT_Long X, Y; \ + \ + \ + /* Only use low 16bits, then sign extend */ \ + S = (FT_Short)args[1]; \ + Y = (FT_Long)S; \ + S = (FT_Short)args[0]; \ + X = S; \ + \ + NORMalize( X, Y, &CUR.GS.freeVector ); \ + GUESS_VECTOR( projVector ); \ + COMPUTE_Funcs(); \ + } + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#define DO_GPV \ + if ( CUR.face->unpatented_hinting ) \ + { \ + args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \ + args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \ + } \ + else \ + { \ + args[0] = CUR.GS.projVector.x; \ + args[1] = CUR.GS.projVector.y; \ + } +#else +#define DO_GPV \ + args[0] = CUR.GS.projVector.x; \ + args[1] = CUR.GS.projVector.y; +#endif + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#define DO_GFV \ + if ( CUR.face->unpatented_hinting ) \ + { \ + args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \ + args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \ + } \ + else \ + { \ + args[0] = CUR.GS.freeVector.x; \ + args[1] = CUR.GS.freeVector.y; \ + } +#else +#define DO_GFV \ + args[0] = CUR.GS.freeVector.x; \ + args[1] = CUR.GS.freeVector.y; +#endif + + +#define DO_SRP0 \ + CUR.GS.rp0 = (FT_UShort)args[0]; + + +#define DO_SRP1 \ + CUR.GS.rp1 = (FT_UShort)args[0]; + + +#define DO_SRP2 \ + CUR.GS.rp2 = (FT_UShort)args[0]; + + +#define DO_RTHG \ + CUR.GS.round_state = TT_Round_To_Half_Grid; \ + CUR.func_round = (TT_Round_Func)Round_To_Half_Grid; + + +#define DO_RTG \ + CUR.GS.round_state = TT_Round_To_Grid; \ + CUR.func_round = (TT_Round_Func)Round_To_Grid; + + +#define DO_RTDG \ + CUR.GS.round_state = TT_Round_To_Double_Grid; \ + CUR.func_round = (TT_Round_Func)Round_To_Double_Grid; + + +#define DO_RUTG \ + CUR.GS.round_state = TT_Round_Up_To_Grid; \ + CUR.func_round = (TT_Round_Func)Round_Up_To_Grid; + + +#define DO_RDTG \ + CUR.GS.round_state = TT_Round_Down_To_Grid; \ + CUR.func_round = (TT_Round_Func)Round_Down_To_Grid; + + +#define DO_ROFF \ + CUR.GS.round_state = TT_Round_Off; \ + CUR.func_round = (TT_Round_Func)Round_None; + + +#define DO_SROUND \ + SET_SuperRound( 0x4000, args[0] ); \ + CUR.GS.round_state = TT_Round_Super; \ + CUR.func_round = (TT_Round_Func)Round_Super; + + +#define DO_S45ROUND \ + SET_SuperRound( 0x2D41, args[0] ); \ + CUR.GS.round_state = TT_Round_Super_45; \ + CUR.func_round = (TT_Round_Func)Round_Super_45; + + +#define DO_SLOOP \ + if ( args[0] < 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + else \ + CUR.GS.loop = args[0]; + + +#define DO_SMD \ + CUR.GS.minimum_distance = args[0]; + + +#define DO_SCVTCI \ + CUR.GS.control_value_cutin = (FT_F26Dot6)args[0]; + + +#define DO_SSWCI \ + CUR.GS.single_width_cutin = (FT_F26Dot6)args[0]; + + + /* XXX: UNDOCUMENTED! or bug in the Windows engine? */ + /* */ + /* It seems that the value that is read here is */ + /* expressed in 16.16 format rather than in font */ + /* units. */ + /* */ +#define DO_SSW \ + CUR.GS.single_width_value = (FT_F26Dot6)( args[0] >> 10 ); + + +#define DO_FLIPON \ + CUR.GS.auto_flip = TRUE; + + +#define DO_FLIPOFF \ + CUR.GS.auto_flip = FALSE; + + +#define DO_SDB \ + CUR.GS.delta_base = (FT_Short)args[0]; + + +#define DO_SDS \ + CUR.GS.delta_shift = (FT_Short)args[0]; + + +#define DO_MD /* nothing */ + + +#define DO_MPPEM \ + args[0] = CURRENT_Ppem(); + + + /* Note: The pointSize should be irrelevant in a given font program; */ + /* we thus decide to return only the ppem. */ +#if 0 + +#define DO_MPS \ + args[0] = CUR.metrics.pointSize; + +#else + +#define DO_MPS \ + args[0] = CURRENT_Ppem(); + +#endif /* 0 */ + + +#define DO_DUP \ + args[1] = args[0]; + + +#define DO_CLEAR \ + CUR.new_top = 0; + + +#define DO_SWAP \ + { \ + FT_Long L; \ + \ + \ + L = args[0]; \ + args[0] = args[1]; \ + args[1] = L; \ + } + + +#define DO_DEPTH \ + args[0] = CUR.top; + + +#define DO_CINDEX \ + { \ + FT_Long L; \ + \ + \ + L = args[0]; \ + \ + if ( L <= 0 || L > CUR.args ) \ + { \ + if ( CUR.pedantic_hinting ) \ + CUR.error = TT_Err_Invalid_Reference; \ + args[0] = 0; \ + } \ + else \ + args[0] = CUR.stack[CUR.args - L]; \ + } + + +#define DO_JROT \ + if ( args[1] != 0 ) \ + { \ + if ( args[0] == 0 && CUR.args == 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.IP += args[0]; \ + if ( CUR.IP < 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.step_ins = FALSE; \ + } + + +#define DO_JMPR \ + if ( args[0] == 0 && CUR.args == 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.IP += args[0]; \ + if ( CUR.IP < 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.step_ins = FALSE; + + +#define DO_JROF \ + if ( args[1] == 0 ) \ + { \ + if ( args[0] == 0 && CUR.args == 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.IP += args[0]; \ + if ( CUR.IP < 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.step_ins = FALSE; \ + } + + +#define DO_LT \ + args[0] = ( args[0] < args[1] ); + + +#define DO_LTEQ \ + args[0] = ( args[0] <= args[1] ); + + +#define DO_GT \ + args[0] = ( args[0] > args[1] ); + + +#define DO_GTEQ \ + args[0] = ( args[0] >= args[1] ); + + +#define DO_EQ \ + args[0] = ( args[0] == args[1] ); + + +#define DO_NEQ \ + args[0] = ( args[0] != args[1] ); + + +#define DO_ODD \ + args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 64 ); + + +#define DO_EVEN \ + args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 0 ); + + +#define DO_AND \ + args[0] = ( args[0] && args[1] ); + + +#define DO_OR \ + args[0] = ( args[0] || args[1] ); + + +#define DO_NOT \ + args[0] = !args[0]; + + +#define DO_ADD \ + args[0] += args[1]; + + +#define DO_SUB \ + args[0] -= args[1]; + + +#define DO_DIV \ + if ( args[1] == 0 ) \ + CUR.error = TT_Err_Divide_By_Zero; \ + else \ + args[0] = TT_MULDIV_NO_ROUND( args[0], 64L, args[1] ); + + +#define DO_MUL \ + args[0] = TT_MULDIV( args[0], args[1], 64L ); + + +#define DO_ABS \ + args[0] = FT_ABS( args[0] ); + + +#define DO_NEG \ + args[0] = -args[0]; + + +#define DO_FLOOR \ + args[0] = FT_PIX_FLOOR( args[0] ); + + +#define DO_CEILING \ + args[0] = FT_PIX_CEIL( args[0] ); + + +#define DO_RS \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.storeSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + else \ + args[0] = 0; \ + } \ + else \ + args[0] = CUR.storage[I]; \ + } + + +#define DO_WS \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.storeSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + } \ + else \ + CUR.storage[I] = args[1]; \ + } + + +#define DO_RCVT \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.cvtSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + else \ + args[0] = 0; \ + } \ + else \ + args[0] = CUR_Func_read_cvt( I ); \ + } + + +#define DO_WCVTP \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.cvtSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + } \ + else \ + CUR_Func_write_cvt( I, args[1] ); \ + } + + +#define DO_WCVTF \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.cvtSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + } \ + else \ + CUR.cvt[I] = TT_MULFIX( args[1], CUR.tt_metrics.scale ); \ + } + + +#define DO_DEBUG \ + CUR.error = TT_Err_Debug_OpCode; + + +#define DO_ROUND \ + args[0] = CUR_Func_round( \ + args[0], \ + CUR.tt_metrics.compensations[CUR.opcode - 0x68] ); + + +#define DO_NROUND \ + args[0] = ROUND_None( args[0], \ + CUR.tt_metrics.compensations[CUR.opcode - 0x6C] ); + + +#define DO_MAX \ + if ( args[1] > args[0] ) \ + args[0] = args[1]; + + +#define DO_MIN \ + if ( args[1] < args[0] ) \ + args[0] = args[1]; + + +#ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH + + +#undef ARRAY_BOUND_ERROR +#define ARRAY_BOUND_ERROR \ + { \ + CUR.error = TT_Err_Invalid_Reference; \ + return; \ + } + + + /*************************************************************************/ + /* */ + /* SVTCA[a]: Set (F and P) Vectors to Coordinate Axis */ + /* Opcode range: 0x00-0x01 */ + /* Stack: --> */ + /* */ + static void + Ins_SVTCA( INS_ARG ) + { + DO_SVTCA + } + + + /*************************************************************************/ + /* */ + /* SPVTCA[a]: Set PVector to Coordinate Axis */ + /* Opcode range: 0x02-0x03 */ + /* Stack: --> */ + /* */ + static void + Ins_SPVTCA( INS_ARG ) + { + DO_SPVTCA + } + + + /*************************************************************************/ + /* */ + /* SFVTCA[a]: Set FVector to Coordinate Axis */ + /* Opcode range: 0x04-0x05 */ + /* Stack: --> */ + /* */ + static void + Ins_SFVTCA( INS_ARG ) + { + DO_SFVTCA + } + + + /*************************************************************************/ + /* */ + /* SPVTL[a]: Set PVector To Line */ + /* Opcode range: 0x06-0x07 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_SPVTL( INS_ARG ) + { + DO_SPVTL + } + + + /*************************************************************************/ + /* */ + /* SFVTL[a]: Set FVector To Line */ + /* Opcode range: 0x08-0x09 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_SFVTL( INS_ARG ) + { + DO_SFVTL + } + + + /*************************************************************************/ + /* */ + /* SFVTPV[]: Set FVector To PVector */ + /* Opcode range: 0x0E */ + /* Stack: --> */ + /* */ + static void + Ins_SFVTPV( INS_ARG ) + { + DO_SFVTPV + } + + + /*************************************************************************/ + /* */ + /* SPVFS[]: Set PVector From Stack */ + /* Opcode range: 0x0A */ + /* Stack: f2.14 f2.14 --> */ + /* */ + static void + Ins_SPVFS( INS_ARG ) + { + DO_SPVFS + } + + + /*************************************************************************/ + /* */ + /* SFVFS[]: Set FVector From Stack */ + /* Opcode range: 0x0B */ + /* Stack: f2.14 f2.14 --> */ + /* */ + static void + Ins_SFVFS( INS_ARG ) + { + DO_SFVFS + } + + + /*************************************************************************/ + /* */ + /* GPV[]: Get Projection Vector */ + /* Opcode range: 0x0C */ + /* Stack: ef2.14 --> ef2.14 */ + /* */ + static void + Ins_GPV( INS_ARG ) + { + DO_GPV + } + + + /*************************************************************************/ + /* GFV[]: Get Freedom Vector */ + /* Opcode range: 0x0D */ + /* Stack: ef2.14 --> ef2.14 */ + /* */ + static void + Ins_GFV( INS_ARG ) + { + DO_GFV + } + + + /*************************************************************************/ + /* */ + /* SRP0[]: Set Reference Point 0 */ + /* Opcode range: 0x10 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SRP0( INS_ARG ) + { + DO_SRP0 + } + + + /*************************************************************************/ + /* */ + /* SRP1[]: Set Reference Point 1 */ + /* Opcode range: 0x11 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SRP1( INS_ARG ) + { + DO_SRP1 + } + + + /*************************************************************************/ + /* */ + /* SRP2[]: Set Reference Point 2 */ + /* Opcode range: 0x12 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SRP2( INS_ARG ) + { + DO_SRP2 + } + + + /*************************************************************************/ + /* */ + /* RTHG[]: Round To Half Grid */ + /* Opcode range: 0x19 */ + /* Stack: --> */ + /* */ + static void + Ins_RTHG( INS_ARG ) + { + DO_RTHG + } + + + /*************************************************************************/ + /* */ + /* RTG[]: Round To Grid */ + /* Opcode range: 0x18 */ + /* Stack: --> */ + /* */ + static void + Ins_RTG( INS_ARG ) + { + DO_RTG + } + + + /*************************************************************************/ + /* RTDG[]: Round To Double Grid */ + /* Opcode range: 0x3D */ + /* Stack: --> */ + /* */ + static void + Ins_RTDG( INS_ARG ) + { + DO_RTDG + } + + + /*************************************************************************/ + /* RUTG[]: Round Up To Grid */ + /* Opcode range: 0x7C */ + /* Stack: --> */ + /* */ + static void + Ins_RUTG( INS_ARG ) + { + DO_RUTG + } + + + /*************************************************************************/ + /* */ + /* RDTG[]: Round Down To Grid */ + /* Opcode range: 0x7D */ + /* Stack: --> */ + /* */ + static void + Ins_RDTG( INS_ARG ) + { + DO_RDTG + } + + + /*************************************************************************/ + /* */ + /* ROFF[]: Round OFF */ + /* Opcode range: 0x7A */ + /* Stack: --> */ + /* */ + static void + Ins_ROFF( INS_ARG ) + { + DO_ROFF + } + + + /*************************************************************************/ + /* */ + /* SROUND[]: Super ROUND */ + /* Opcode range: 0x76 */ + /* Stack: Eint8 --> */ + /* */ + static void + Ins_SROUND( INS_ARG ) + { + DO_SROUND + } + + + /*************************************************************************/ + /* */ + /* S45ROUND[]: Super ROUND 45 degrees */ + /* Opcode range: 0x77 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_S45ROUND( INS_ARG ) + { + DO_S45ROUND + } + + + /*************************************************************************/ + /* */ + /* SLOOP[]: Set LOOP variable */ + /* Opcode range: 0x17 */ + /* Stack: int32? --> */ + /* */ + static void + Ins_SLOOP( INS_ARG ) + { + DO_SLOOP + } + + + /*************************************************************************/ + /* */ + /* SMD[]: Set Minimum Distance */ + /* Opcode range: 0x1A */ + /* Stack: f26.6 --> */ + /* */ + static void + Ins_SMD( INS_ARG ) + { + DO_SMD + } + + + /*************************************************************************/ + /* */ + /* SCVTCI[]: Set Control Value Table Cut In */ + /* Opcode range: 0x1D */ + /* Stack: f26.6 --> */ + /* */ + static void + Ins_SCVTCI( INS_ARG ) + { + DO_SCVTCI + } + + + /*************************************************************************/ + /* */ + /* SSWCI[]: Set Single Width Cut In */ + /* Opcode range: 0x1E */ + /* Stack: f26.6 --> */ + /* */ + static void + Ins_SSWCI( INS_ARG ) + { + DO_SSWCI + } + + + /*************************************************************************/ + /* */ + /* SSW[]: Set Single Width */ + /* Opcode range: 0x1F */ + /* Stack: int32? --> */ + /* */ + static void + Ins_SSW( INS_ARG ) + { + DO_SSW + } + + + /*************************************************************************/ + /* */ + /* FLIPON[]: Set auto-FLIP to ON */ + /* Opcode range: 0x4D */ + /* Stack: --> */ + /* */ + static void + Ins_FLIPON( INS_ARG ) + { + DO_FLIPON + } + + + /*************************************************************************/ + /* */ + /* FLIPOFF[]: Set auto-FLIP to OFF */ + /* Opcode range: 0x4E */ + /* Stack: --> */ + /* */ + static void + Ins_FLIPOFF( INS_ARG ) + { + DO_FLIPOFF + } + + + /*************************************************************************/ + /* */ + /* SANGW[]: Set ANGle Weight */ + /* Opcode range: 0x7E */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SANGW( INS_ARG ) + { + /* instruction not supported anymore */ + } + + + /*************************************************************************/ + /* */ + /* SDB[]: Set Delta Base */ + /* Opcode range: 0x5E */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SDB( INS_ARG ) + { + DO_SDB + } + + + /*************************************************************************/ + /* */ + /* SDS[]: Set Delta Shift */ + /* Opcode range: 0x5F */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SDS( INS_ARG ) + { + DO_SDS + } + + + /*************************************************************************/ + /* */ + /* MPPEM[]: Measure Pixel Per EM */ + /* Opcode range: 0x4B */ + /* Stack: --> Euint16 */ + /* */ + static void + Ins_MPPEM( INS_ARG ) + { + DO_MPPEM + } + + + /*************************************************************************/ + /* */ + /* MPS[]: Measure Point Size */ + /* Opcode range: 0x4C */ + /* Stack: --> Euint16 */ + /* */ + static void + Ins_MPS( INS_ARG ) + { + DO_MPS + } + + + /*************************************************************************/ + /* */ + /* DUP[]: DUPlicate the top stack's element */ + /* Opcode range: 0x20 */ + /* Stack: StkElt --> StkElt StkElt */ + /* */ + static void + Ins_DUP( INS_ARG ) + { + DO_DUP + } + + + /*************************************************************************/ + /* */ + /* POP[]: POP the stack's top element */ + /* Opcode range: 0x21 */ + /* Stack: StkElt --> */ + /* */ + static void + Ins_POP( INS_ARG ) + { + /* nothing to do */ + } + + + /*************************************************************************/ + /* */ + /* CLEAR[]: CLEAR the entire stack */ + /* Opcode range: 0x22 */ + /* Stack: StkElt... --> */ + /* */ + static void + Ins_CLEAR( INS_ARG ) + { + DO_CLEAR + } + + + /*************************************************************************/ + /* */ + /* SWAP[]: SWAP the stack's top two elements */ + /* Opcode range: 0x23 */ + /* Stack: 2 * StkElt --> 2 * StkElt */ + /* */ + static void + Ins_SWAP( INS_ARG ) + { + DO_SWAP + } + + + /*************************************************************************/ + /* */ + /* DEPTH[]: return the stack DEPTH */ + /* Opcode range: 0x24 */ + /* Stack: --> uint32 */ + /* */ + static void + Ins_DEPTH( INS_ARG ) + { + DO_DEPTH + } + + + /*************************************************************************/ + /* */ + /* CINDEX[]: Copy INDEXed element */ + /* Opcode range: 0x25 */ + /* Stack: int32 --> StkElt */ + /* */ + static void + Ins_CINDEX( INS_ARG ) + { + DO_CINDEX + } + + + /*************************************************************************/ + /* */ + /* EIF[]: End IF */ + /* Opcode range: 0x59 */ + /* Stack: --> */ + /* */ + static void + Ins_EIF( INS_ARG ) + { + /* nothing to do */ + } + + + /*************************************************************************/ + /* */ + /* JROT[]: Jump Relative On True */ + /* Opcode range: 0x78 */ + /* Stack: StkElt int32 --> */ + /* */ + static void + Ins_JROT( INS_ARG ) + { + DO_JROT + } + + + /*************************************************************************/ + /* */ + /* JMPR[]: JuMP Relative */ + /* Opcode range: 0x1C */ + /* Stack: int32 --> */ + /* */ + static void + Ins_JMPR( INS_ARG ) + { + DO_JMPR + } + + + /*************************************************************************/ + /* */ + /* JROF[]: Jump Relative On False */ + /* Opcode range: 0x79 */ + /* Stack: StkElt int32 --> */ + /* */ + static void + Ins_JROF( INS_ARG ) + { + DO_JROF + } + + + /*************************************************************************/ + /* */ + /* LT[]: Less Than */ + /* Opcode range: 0x50 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_LT( INS_ARG ) + { + DO_LT + } + + + /*************************************************************************/ + /* */ + /* LTEQ[]: Less Than or EQual */ + /* Opcode range: 0x51 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_LTEQ( INS_ARG ) + { + DO_LTEQ + } + + + /*************************************************************************/ + /* */ + /* GT[]: Greater Than */ + /* Opcode range: 0x52 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_GT( INS_ARG ) + { + DO_GT + } + + + /*************************************************************************/ + /* */ + /* GTEQ[]: Greater Than or EQual */ + /* Opcode range: 0x53 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_GTEQ( INS_ARG ) + { + DO_GTEQ + } + + + /*************************************************************************/ + /* */ + /* EQ[]: EQual */ + /* Opcode range: 0x54 */ + /* Stack: StkElt StkElt --> bool */ + /* */ + static void + Ins_EQ( INS_ARG ) + { + DO_EQ + } + + + /*************************************************************************/ + /* */ + /* NEQ[]: Not EQual */ + /* Opcode range: 0x55 */ + /* Stack: StkElt StkElt --> bool */ + /* */ + static void + Ins_NEQ( INS_ARG ) + { + DO_NEQ + } + + + /*************************************************************************/ + /* */ + /* ODD[]: Is ODD */ + /* Opcode range: 0x56 */ + /* Stack: f26.6 --> bool */ + /* */ + static void + Ins_ODD( INS_ARG ) + { + DO_ODD + } + + + /*************************************************************************/ + /* */ + /* EVEN[]: Is EVEN */ + /* Opcode range: 0x57 */ + /* Stack: f26.6 --> bool */ + /* */ + static void + Ins_EVEN( INS_ARG ) + { + DO_EVEN + } + + + /*************************************************************************/ + /* */ + /* AND[]: logical AND */ + /* Opcode range: 0x5A */ + /* Stack: uint32 uint32 --> uint32 */ + /* */ + static void + Ins_AND( INS_ARG ) + { + DO_AND + } + + + /*************************************************************************/ + /* */ + /* OR[]: logical OR */ + /* Opcode range: 0x5B */ + /* Stack: uint32 uint32 --> uint32 */ + /* */ + static void + Ins_OR( INS_ARG ) + { + DO_OR + } + + + /*************************************************************************/ + /* */ + /* NOT[]: logical NOT */ + /* Opcode range: 0x5C */ + /* Stack: StkElt --> uint32 */ + /* */ + static void + Ins_NOT( INS_ARG ) + { + DO_NOT + } + + + /*************************************************************************/ + /* */ + /* ADD[]: ADD */ + /* Opcode range: 0x60 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_ADD( INS_ARG ) + { + DO_ADD + } + + + /*************************************************************************/ + /* */ + /* SUB[]: SUBtract */ + /* Opcode range: 0x61 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_SUB( INS_ARG ) + { + DO_SUB + } + + + /*************************************************************************/ + /* */ + /* DIV[]: DIVide */ + /* Opcode range: 0x62 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_DIV( INS_ARG ) + { + DO_DIV + } + + + /*************************************************************************/ + /* */ + /* MUL[]: MULtiply */ + /* Opcode range: 0x63 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_MUL( INS_ARG ) + { + DO_MUL + } + + + /*************************************************************************/ + /* */ + /* ABS[]: ABSolute value */ + /* Opcode range: 0x64 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_ABS( INS_ARG ) + { + DO_ABS + } + + + /*************************************************************************/ + /* */ + /* NEG[]: NEGate */ + /* Opcode range: 0x65 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_NEG( INS_ARG ) + { + DO_NEG + } + + + /*************************************************************************/ + /* */ + /* FLOOR[]: FLOOR */ + /* Opcode range: 0x66 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_FLOOR( INS_ARG ) + { + DO_FLOOR + } + + + /*************************************************************************/ + /* */ + /* CEILING[]: CEILING */ + /* Opcode range: 0x67 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_CEILING( INS_ARG ) + { + DO_CEILING + } + + + /*************************************************************************/ + /* */ + /* RS[]: Read Store */ + /* Opcode range: 0x43 */ + /* Stack: uint32 --> uint32 */ + /* */ + static void + Ins_RS( INS_ARG ) + { + DO_RS + } + + + /*************************************************************************/ + /* */ + /* WS[]: Write Store */ + /* Opcode range: 0x42 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_WS( INS_ARG ) + { + DO_WS + } + + + /*************************************************************************/ + /* */ + /* WCVTP[]: Write CVT in Pixel units */ + /* Opcode range: 0x44 */ + /* Stack: f26.6 uint32 --> */ + /* */ + static void + Ins_WCVTP( INS_ARG ) + { + DO_WCVTP + } + + + /*************************************************************************/ + /* */ + /* WCVTF[]: Write CVT in Funits */ + /* Opcode range: 0x70 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_WCVTF( INS_ARG ) + { + DO_WCVTF + } + + + /*************************************************************************/ + /* */ + /* RCVT[]: Read CVT */ + /* Opcode range: 0x45 */ + /* Stack: uint32 --> f26.6 */ + /* */ + static void + Ins_RCVT( INS_ARG ) + { + DO_RCVT + } + + + /*************************************************************************/ + /* */ + /* AA[]: Adjust Angle */ + /* Opcode range: 0x7F */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_AA( INS_ARG ) + { + /* intentionally no longer supported */ + } + + + /*************************************************************************/ + /* */ + /* DEBUG[]: DEBUG. Unsupported. */ + /* Opcode range: 0x4F */ + /* Stack: uint32 --> */ + /* */ + /* Note: The original instruction pops a value from the stack. */ + /* */ + static void + Ins_DEBUG( INS_ARG ) + { + DO_DEBUG + } + + + /*************************************************************************/ + /* */ + /* ROUND[ab]: ROUND value */ + /* Opcode range: 0x68-0x6B */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_ROUND( INS_ARG ) + { + DO_ROUND + } + + + /*************************************************************************/ + /* */ + /* NROUND[ab]: No ROUNDing of value */ + /* Opcode range: 0x6C-0x6F */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_NROUND( INS_ARG ) + { + DO_NROUND + } + + + /*************************************************************************/ + /* */ + /* MAX[]: MAXimum */ + /* Opcode range: 0x68 */ + /* Stack: int32? int32? --> int32 */ + /* */ + static void + Ins_MAX( INS_ARG ) + { + DO_MAX + } + + + /*************************************************************************/ + /* */ + /* MIN[]: MINimum */ + /* Opcode range: 0x69 */ + /* Stack: int32? int32? --> int32 */ + /* */ + static void + Ins_MIN( INS_ARG ) + { + DO_MIN + } + + +#endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */ + + + /*************************************************************************/ + /* */ + /* The following functions are called as is within the switch statement. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* MINDEX[]: Move INDEXed element */ + /* Opcode range: 0x26 */ + /* Stack: int32? --> StkElt */ + /* */ + static void + Ins_MINDEX( INS_ARG ) + { + FT_Long L, K; + + + L = args[0]; + + if ( L <= 0 || L > CUR.args ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + } + else + { + K = CUR.stack[CUR.args - L]; + + FT_ARRAY_MOVE( &CUR.stack[CUR.args - L ], + &CUR.stack[CUR.args - L + 1], + ( L - 1 ) ); + + CUR.stack[CUR.args - 1] = K; + } + } + + + /*************************************************************************/ + /* */ + /* ROLL[]: ROLL top three elements */ + /* Opcode range: 0x8A */ + /* Stack: 3 * StkElt --> 3 * StkElt */ + /* */ + static void + Ins_ROLL( INS_ARG ) + { + FT_Long A, B, C; + + FT_UNUSED_EXEC; + + + A = args[2]; + B = args[1]; + C = args[0]; + + args[2] = C; + args[1] = A; + args[0] = B; + } + + + /*************************************************************************/ + /* */ + /* MANAGING THE FLOW OF CONTROL */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + static FT_Bool + SkipCode( EXEC_OP ) + { + CUR.IP += CUR.length; + + if ( CUR.IP < CUR.codeSize ) + { + CUR.opcode = CUR.code[CUR.IP]; + + CUR.length = opcode_length[CUR.opcode]; + if ( CUR.length < 0 ) + { + if ( CUR.IP + 1 > CUR.codeSize ) + goto Fail_Overflow; + CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1]; + } + + if ( CUR.IP + CUR.length <= CUR.codeSize ) + return SUCCESS; + } + + Fail_Overflow: + CUR.error = TT_Err_Code_Overflow; + return FAILURE; + } + + + /*************************************************************************/ + /* */ + /* IF[]: IF test */ + /* Opcode range: 0x58 */ + /* Stack: StkElt --> */ + /* */ + static void + Ins_IF( INS_ARG ) + { + FT_Int nIfs; + FT_Bool Out; + + + if ( args[0] != 0 ) + return; + + nIfs = 1; + Out = 0; + + do + { + if ( SKIP_Code() == FAILURE ) + return; + + switch ( CUR.opcode ) + { + case 0x58: /* IF */ + nIfs++; + break; + + case 0x1B: /* ELSE */ + Out = FT_BOOL( nIfs == 1 ); + break; + + case 0x59: /* EIF */ + nIfs--; + Out = FT_BOOL( nIfs == 0 ); + break; + } + } while ( Out == 0 ); + } + + + /*************************************************************************/ + /* */ + /* ELSE[]: ELSE */ + /* Opcode range: 0x1B */ + /* Stack: --> */ + /* */ + static void + Ins_ELSE( INS_ARG ) + { + FT_Int nIfs; + + FT_UNUSED_ARG; + + + nIfs = 1; + + do + { + if ( SKIP_Code() == FAILURE ) + return; + + switch ( CUR.opcode ) + { + case 0x58: /* IF */ + nIfs++; + break; + + case 0x59: /* EIF */ + nIfs--; + break; + } + } while ( nIfs != 0 ); + } + + + /*************************************************************************/ + /* */ + /* DEFINING AND USING FUNCTIONS AND INSTRUCTIONS */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* FDEF[]: Function DEFinition */ + /* Opcode range: 0x2C */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_FDEF( INS_ARG ) + { + FT_ULong n; + TT_DefRecord* rec; + TT_DefRecord* limit; + + + /* some font programs are broken enough to redefine functions! */ + /* We will then parse the current table. */ + + rec = CUR.FDefs; + limit = rec + CUR.numFDefs; + n = args[0]; + + for ( ; rec < limit; rec++ ) + { + if ( rec->opc == n ) + break; + } + + if ( rec == limit ) + { + /* check that there is enough room for new functions */ + if ( CUR.numFDefs >= CUR.maxFDefs ) + { + CUR.error = TT_Err_Too_Many_Function_Defs; + return; + } + CUR.numFDefs++; + } + + /* Although FDEF takes unsigned 32-bit integer, */ + /* func # must be within unsigned 16-bit integer */ + if ( n > 0xFFFFU ) + { + CUR.error = TT_Err_Too_Many_Function_Defs; + return; + } + + rec->range = CUR.curRange; + rec->opc = (FT_UInt16)n; + rec->start = CUR.IP + 1; + rec->active = TRUE; + + if ( n > CUR.maxFunc ) + CUR.maxFunc = (FT_UInt16)n; + + /* Now skip the whole function definition. */ + /* We don't allow nested IDEFS & FDEFs. */ + + while ( SKIP_Code() == SUCCESS ) + { + switch ( CUR.opcode ) + { + case 0x89: /* IDEF */ + case 0x2C: /* FDEF */ + CUR.error = TT_Err_Nested_DEFS; + return; + + case 0x2D: /* ENDF */ + return; + } + } + } + + + /*************************************************************************/ + /* */ + /* ENDF[]: END Function definition */ + /* Opcode range: 0x2D */ + /* Stack: --> */ + /* */ + static void + Ins_ENDF( INS_ARG ) + { + TT_CallRec* pRec; + + FT_UNUSED_ARG; + + + if ( CUR.callTop <= 0 ) /* We encountered an ENDF without a call */ + { + CUR.error = TT_Err_ENDF_In_Exec_Stream; + return; + } + + CUR.callTop--; + + pRec = &CUR.callStack[CUR.callTop]; + + pRec->Cur_Count--; + + CUR.step_ins = FALSE; + + if ( pRec->Cur_Count > 0 ) + { + CUR.callTop++; + CUR.IP = pRec->Cur_Restart; + } + else + /* Loop through the current function */ + INS_Goto_CodeRange( pRec->Caller_Range, + pRec->Caller_IP ); + + /* Exit the current call frame. */ + + /* NOTE: If the last instruction of a program is a */ + /* CALL or LOOPCALL, the return address is */ + /* always out of the code range. This is a */ + /* valid address, and it is why we do not test */ + /* the result of Ins_Goto_CodeRange() here! */ + } + + + /*************************************************************************/ + /* */ + /* CALL[]: CALL function */ + /* Opcode range: 0x2B */ + /* Stack: uint32? --> */ + /* */ + static void + Ins_CALL( INS_ARG ) + { + FT_ULong F; + TT_CallRec* pCrec; + TT_DefRecord* def; + + + /* first of all, check the index */ + + F = args[0]; + if ( BOUNDSL( F, CUR.maxFunc + 1 ) ) + goto Fail; + + /* Except for some old Apple fonts, all functions in a TrueType */ + /* font are defined in increasing order, starting from 0. This */ + /* means that we normally have */ + /* */ + /* CUR.maxFunc+1 == CUR.numFDefs */ + /* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */ + /* */ + /* If this isn't true, we need to look up the function table. */ + + def = CUR.FDefs + F; + if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F ) + { + /* look up the FDefs table */ + TT_DefRecord* limit; + + + def = CUR.FDefs; + limit = def + CUR.numFDefs; + + while ( def < limit && def->opc != F ) + def++; + + if ( def == limit ) + goto Fail; + } + + /* check that the function is active */ + if ( !def->active ) + goto Fail; + + /* check the call stack */ + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + pCrec = CUR.callStack + CUR.callTop; + + pCrec->Caller_Range = CUR.curRange; + pCrec->Caller_IP = CUR.IP + 1; + pCrec->Cur_Count = 1; + pCrec->Cur_Restart = def->start; + + CUR.callTop++; + + INS_Goto_CodeRange( def->range, + def->start ); + + CUR.step_ins = FALSE; + return; + + Fail: + CUR.error = TT_Err_Invalid_Reference; + } + + + /*************************************************************************/ + /* */ + /* LOOPCALL[]: LOOP and CALL function */ + /* Opcode range: 0x2A */ + /* Stack: uint32? Eint16? --> */ + /* */ + static void + Ins_LOOPCALL( INS_ARG ) + { + FT_ULong F; + TT_CallRec* pCrec; + TT_DefRecord* def; + + + /* first of all, check the index */ + F = args[1]; + if ( BOUNDSL( F, CUR.maxFunc + 1 ) ) + goto Fail; + + /* Except for some old Apple fonts, all functions in a TrueType */ + /* font are defined in increasing order, starting from 0. This */ + /* means that we normally have */ + /* */ + /* CUR.maxFunc+1 == CUR.numFDefs */ + /* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */ + /* */ + /* If this isn't true, we need to look up the function table. */ + + def = CUR.FDefs + F; + if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F ) + { + /* look up the FDefs table */ + TT_DefRecord* limit; + + + def = CUR.FDefs; + limit = def + CUR.numFDefs; + + while ( def < limit && def->opc != F ) + def++; + + if ( def == limit ) + goto Fail; + } + + /* check that the function is active */ + if ( !def->active ) + goto Fail; + + /* check stack */ + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + if ( args[0] > 0 ) + { + pCrec = CUR.callStack + CUR.callTop; + + pCrec->Caller_Range = CUR.curRange; + pCrec->Caller_IP = CUR.IP + 1; + pCrec->Cur_Count = (FT_Int)args[0]; + pCrec->Cur_Restart = def->start; + + CUR.callTop++; + + INS_Goto_CodeRange( def->range, def->start ); + + CUR.step_ins = FALSE; + } + return; + + Fail: + CUR.error = TT_Err_Invalid_Reference; + } + + + /*************************************************************************/ + /* */ + /* IDEF[]: Instruction DEFinition */ + /* Opcode range: 0x89 */ + /* Stack: Eint8 --> */ + /* */ + static void + Ins_IDEF( INS_ARG ) + { + TT_DefRecord* def; + TT_DefRecord* limit; + + + /* First of all, look for the same function in our table */ + + def = CUR.IDefs; + limit = def + CUR.numIDefs; + + for ( ; def < limit; def++ ) + if ( def->opc == (FT_ULong)args[0] ) + break; + + if ( def == limit ) + { + /* check that there is enough room for a new instruction */ + if ( CUR.numIDefs >= CUR.maxIDefs ) + { + CUR.error = TT_Err_Too_Many_Instruction_Defs; + return; + } + CUR.numIDefs++; + } + + /* opcode must be unsigned 8-bit integer */ + if ( 0 > args[0] || args[0] > 0x00FF ) + { + CUR.error = TT_Err_Too_Many_Instruction_Defs; + return; + } + + def->opc = (FT_Byte)args[0]; + def->start = CUR.IP + 1; + def->range = CUR.curRange; + def->active = TRUE; + + if ( (FT_ULong)args[0] > CUR.maxIns ) + CUR.maxIns = (FT_Byte)args[0]; + + /* Now skip the whole function definition. */ + /* We don't allow nested IDEFs & FDEFs. */ + + while ( SKIP_Code() == SUCCESS ) + { + switch ( CUR.opcode ) + { + case 0x89: /* IDEF */ + case 0x2C: /* FDEF */ + CUR.error = TT_Err_Nested_DEFS; + return; + case 0x2D: /* ENDF */ + return; + } + } + } + + + /*************************************************************************/ + /* */ + /* PUSHING DATA ONTO THE INTERPRETER STACK */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* NPUSHB[]: PUSH N Bytes */ + /* Opcode range: 0x40 */ + /* Stack: --> uint32... */ + /* */ + static void + Ins_NPUSHB( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)CUR.code[CUR.IP + 1]; + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + for ( K = 1; K <= L; K++ ) + args[K - 1] = CUR.code[CUR.IP + K + 1]; + + CUR.new_top += L; + } + + + /*************************************************************************/ + /* */ + /* NPUSHW[]: PUSH N Words */ + /* Opcode range: 0x41 */ + /* Stack: --> int32... */ + /* */ + static void + Ins_NPUSHW( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)CUR.code[CUR.IP + 1]; + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + CUR.IP += 2; + + for ( K = 0; K < L; K++ ) + args[K] = GET_ShortIns(); + + CUR.step_ins = FALSE; + CUR.new_top += L; + } + + + /*************************************************************************/ + /* */ + /* PUSHB[abc]: PUSH Bytes */ + /* Opcode range: 0xB0-0xB7 */ + /* Stack: --> uint32... */ + /* */ + static void + Ins_PUSHB( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)( CUR.opcode - 0xB0 + 1 ); + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + for ( K = 1; K <= L; K++ ) + args[K - 1] = CUR.code[CUR.IP + K]; + } + + + /*************************************************************************/ + /* */ + /* PUSHW[abc]: PUSH Words */ + /* Opcode range: 0xB8-0xBF */ + /* Stack: --> int32... */ + /* */ + static void + Ins_PUSHW( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)( CUR.opcode - 0xB8 + 1 ); + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + CUR.IP++; + + for ( K = 0; K < L; K++ ) + args[K] = GET_ShortIns(); + + CUR.step_ins = FALSE; + } + + + /*************************************************************************/ + /* */ + /* MANAGING THE GRAPHICS STATE */ + /* */ + /* Instructions appear in the specs' order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* GC[a]: Get Coordinate projected onto */ + /* Opcode range: 0x46-0x47 */ + /* Stack: uint32 --> f26.6 */ + /* */ + /* BULLSHIT: Measures from the original glyph must be taken along the */ + /* dual projection vector! */ + /* */ + static void + Ins_GC( INS_ARG ) + { + FT_ULong L; + FT_F26Dot6 R; + + + L = (FT_ULong)args[0]; + + if ( BOUNDSL( L, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + R = 0; + } + else + { + if ( CUR.opcode & 1 ) + R = CUR_fast_dualproj( &CUR.zp2.org[L] ); + else + R = CUR_fast_project( &CUR.zp2.cur[L] ); + } + + args[0] = R; + } + + + /*************************************************************************/ + /* */ + /* SCFS[]: Set Coordinate From Stack */ + /* Opcode range: 0x48 */ + /* Stack: f26.6 uint32 --> */ + /* */ + /* Formula: */ + /* */ + /* OA := OA + ( value - OA.p )/( f.p ) * f */ + /* */ + static void + Ins_SCFS( INS_ARG ) + { + FT_Long K; + FT_UShort L; + + + L = (FT_UShort)args[0]; + + if ( BOUNDS( L, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + K = CUR_fast_project( &CUR.zp2.cur[L] ); + + CUR_Func_move( &CUR.zp2, L, args[1] - K ); + + /* not part of the specs, but here for safety */ + + if ( CUR.GS.gep2 == 0 ) + CUR.zp2.org[L] = CUR.zp2.cur[L]; + } + + + /*************************************************************************/ + /* */ + /* MD[a]: Measure Distance */ + /* Opcode range: 0x49-0x4A */ + /* Stack: uint32 uint32 --> f26.6 */ + /* */ + /* BULLSHIT: Measure taken in the original glyph must be along the dual */ + /* projection vector. */ + /* */ + /* Second BULLSHIT: Flag attributes are inverted! */ + /* 0 => measure distance in original outline */ + /* 1 => measure distance in grid-fitted outline */ + /* */ + /* Third one: `zp0 - zp1', and not `zp2 - zp1! */ + /* */ + static void + Ins_MD( INS_ARG ) + { + FT_UShort K, L; + FT_F26Dot6 D; + + + K = (FT_UShort)args[1]; + L = (FT_UShort)args[0]; + + if ( BOUNDS( L, CUR.zp0.n_points ) || + BOUNDS( K, CUR.zp1.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + D = 0; + } + else + { + if ( CUR.opcode & 1 ) + D = CUR_Func_project( CUR.zp0.cur + L, CUR.zp1.cur + K ); + else + { + FT_Vector* vec1 = CUR.zp0.orus + L; + FT_Vector* vec2 = CUR.zp1.orus + K; + + + if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) + { + /* this should be faster */ + D = CUR_Func_dualproj( vec1, vec2 ); + D = TT_MULFIX( D, CUR.metrics.x_scale ); + } + else + { + FT_Vector vec; + + + vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale ); + vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale ); + + D = CUR_fast_dualproj( &vec ); + } + } + } + + args[0] = D; + } + + + /*************************************************************************/ + /* */ + /* SDPVTL[a]: Set Dual PVector to Line */ + /* Opcode range: 0x86-0x87 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_SDPVTL( INS_ARG ) + { + FT_Long A, B, C; + FT_UShort p1, p2; /* was FT_Int in pas type ERROR */ + + + p1 = (FT_UShort)args[1]; + p2 = (FT_UShort)args[0]; + + if ( BOUNDS( p2, CUR.zp1.n_points ) || + BOUNDS( p1, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + { + FT_Vector* v1 = CUR.zp1.org + p2; + FT_Vector* v2 = CUR.zp2.org + p1; + + + A = v1->x - v2->x; + B = v1->y - v2->y; + } + + if ( ( CUR.opcode & 1 ) != 0 ) + { + C = B; /* counter clockwise rotation */ + B = A; + A = -C; + } + + NORMalize( A, B, &CUR.GS.dualVector ); + + { + FT_Vector* v1 = CUR.zp1.cur + p2; + FT_Vector* v2 = CUR.zp2.cur + p1; + + + A = v1->x - v2->x; + B = v1->y - v2->y; + } + + if ( ( CUR.opcode & 1 ) != 0 ) + { + C = B; /* counter clockwise rotation */ + B = A; + A = -C; + } + + NORMalize( A, B, &CUR.GS.projVector ); + + GUESS_VECTOR( freeVector ); + + COMPUTE_Funcs(); + } + + + /*************************************************************************/ + /* */ + /* SZP0[]: Set Zone Pointer 0 */ + /* Opcode range: 0x13 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZP0( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp0 = CUR.twilight; + break; + + case 1: + CUR.zp0 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.GS.gep0 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* SZP1[]: Set Zone Pointer 1 */ + /* Opcode range: 0x14 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZP1( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp1 = CUR.twilight; + break; + + case 1: + CUR.zp1 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.GS.gep1 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* SZP2[]: Set Zone Pointer 2 */ + /* Opcode range: 0x15 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZP2( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp2 = CUR.twilight; + break; + + case 1: + CUR.zp2 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.GS.gep2 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* SZPS[]: Set Zone PointerS */ + /* Opcode range: 0x16 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZPS( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp0 = CUR.twilight; + break; + + case 1: + CUR.zp0 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.zp1 = CUR.zp0; + CUR.zp2 = CUR.zp0; + + CUR.GS.gep0 = (FT_UShort)args[0]; + CUR.GS.gep1 = (FT_UShort)args[0]; + CUR.GS.gep2 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* INSTCTRL[]: INSTruction ConTRoL */ + /* Opcode range: 0x8e */ + /* Stack: int32 int32 --> */ + /* */ + static void + Ins_INSTCTRL( INS_ARG ) + { + FT_Long K, L; + + + K = args[1]; + L = args[0]; + + if ( K < 1 || K > 2 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( L != 0 ) + L = K; + + CUR.GS.instruct_control = FT_BOOL( + ( (FT_Byte)CUR.GS.instruct_control & ~(FT_Byte)K ) | (FT_Byte)L ); + } + + + /*************************************************************************/ + /* */ + /* SCANCTRL[]: SCAN ConTRoL */ + /* Opcode range: 0x85 */ + /* Stack: uint32? --> */ + /* */ + static void + Ins_SCANCTRL( INS_ARG ) + { + FT_Int A; + + + /* Get Threshold */ + A = (FT_Int)( args[0] & 0xFF ); + + if ( A == 0xFF ) + { + CUR.GS.scan_control = TRUE; + return; + } + else if ( A == 0 ) + { + CUR.GS.scan_control = FALSE; + return; + } + + if ( ( args[0] & 0x100 ) != 0 && CUR.tt_metrics.ppem <= A ) + CUR.GS.scan_control = TRUE; + + if ( ( args[0] & 0x200 ) != 0 && CUR.tt_metrics.rotated ) + CUR.GS.scan_control = TRUE; + + if ( ( args[0] & 0x400 ) != 0 && CUR.tt_metrics.stretched ) + CUR.GS.scan_control = TRUE; + + if ( ( args[0] & 0x800 ) != 0 && CUR.tt_metrics.ppem > A ) + CUR.GS.scan_control = FALSE; + + if ( ( args[0] & 0x1000 ) != 0 && CUR.tt_metrics.rotated ) + CUR.GS.scan_control = FALSE; + + if ( ( args[0] & 0x2000 ) != 0 && CUR.tt_metrics.stretched ) + CUR.GS.scan_control = FALSE; + } + + + /*************************************************************************/ + /* */ + /* SCANTYPE[]: SCAN TYPE */ + /* Opcode range: 0x8D */ + /* Stack: uint32? --> */ + /* */ + static void + Ins_SCANTYPE( INS_ARG ) + { + if ( args[0] >= 0 ) + CUR.GS.scan_type = (FT_Int)args[0]; + } + + + /*************************************************************************/ + /* */ + /* MANAGING OUTLINES */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* FLIPPT[]: FLIP PoinT */ + /* Opcode range: 0x80 */ + /* Stack: uint32... --> */ + /* */ + static void + Ins_FLIPPT( INS_ARG ) + { + FT_UShort point; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + goto Fail; + } + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.pts.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + CUR.pts.tags[point] ^= FT_CURVE_TAG_ON; + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* FLIPRGON[]: FLIP RanGe ON */ + /* Opcode range: 0x81 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_FLIPRGON( INS_ARG ) + { + FT_UShort I, K, L; + + + K = (FT_UShort)args[1]; + L = (FT_UShort)args[0]; + + if ( BOUNDS( K, CUR.pts.n_points ) || + BOUNDS( L, CUR.pts.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + for ( I = L; I <= K; I++ ) + CUR.pts.tags[I] |= FT_CURVE_TAG_ON; + } + + + /*************************************************************************/ + /* */ + /* FLIPRGOFF: FLIP RanGe OFF */ + /* Opcode range: 0x82 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_FLIPRGOFF( INS_ARG ) + { + FT_UShort I, K, L; + + + K = (FT_UShort)args[1]; + L = (FT_UShort)args[0]; + + if ( BOUNDS( K, CUR.pts.n_points ) || + BOUNDS( L, CUR.pts.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + for ( I = L; I <= K; I++ ) + CUR.pts.tags[I] &= ~FT_CURVE_TAG_ON; + } + + + static FT_Bool + Compute_Point_Displacement( EXEC_OP_ FT_F26Dot6* x, + FT_F26Dot6* y, + TT_GlyphZone zone, + FT_UShort* refp ) + { + TT_GlyphZoneRec zp; + FT_UShort p; + FT_F26Dot6 d; + + + if ( CUR.opcode & 1 ) + { + zp = CUR.zp0; + p = CUR.GS.rp1; + } + else + { + zp = CUR.zp1; + p = CUR.GS.rp2; + } + + if ( BOUNDS( p, zp.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + *refp = 0; + return FAILURE; + } + + *zone = zp; + *refp = p; + + d = CUR_Func_project( zp.cur + p, zp.org + p ); + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + { + *x = d; + *y = 0; + } + else + { + *x = 0; + *y = d; + } + } + else +#endif + { + *x = TT_MULDIV( d, + (FT_Long)CUR.GS.freeVector.x * 0x10000L, + CUR.F_dot_P ); + *y = TT_MULDIV( d, + (FT_Long)CUR.GS.freeVector.y * 0x10000L, + CUR.F_dot_P ); + } + + return SUCCESS; + } + + + static void + Move_Zp2_Point( EXEC_OP_ FT_UShort point, + FT_F26Dot6 dx, + FT_F26Dot6 dy, + FT_Bool touch ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + { + CUR.zp2.cur[point].x += dx; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + else + { + CUR.zp2.cur[point].y += dy; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + return; + } +#endif + + if ( CUR.GS.freeVector.x != 0 ) + { + CUR.zp2.cur[point].x += dx; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + + if ( CUR.GS.freeVector.y != 0 ) + { + CUR.zp2.cur[point].y += dy; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + } + + + /*************************************************************************/ + /* */ + /* SHP[a]: SHift Point by the last point */ + /* Opcode range: 0x32-0x33 */ + /* Stack: uint32... --> */ + /* */ + static void + Ins_SHP( INS_ARG ) + { + TT_GlyphZoneRec zp; + FT_UShort refp; + + FT_F26Dot6 dx, + dy; + FT_UShort point; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) + return; + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + /* XXX: UNDOCUMENTED! SHP touches the points */ + MOVE_Zp2_Point( point, dx, dy, TRUE ); + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* SHC[a]: SHift Contour */ + /* Opcode range: 0x34-35 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SHC( INS_ARG ) + { + TT_GlyphZoneRec zp; + FT_UShort refp; + FT_F26Dot6 dx, + dy; + + FT_Short contour; + FT_UShort first_point, last_point, i; + + + contour = (FT_UShort)args[0]; + + if ( BOUNDS( contour, CUR.pts.n_contours ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) + return; + + if ( contour == 0 ) + first_point = 0; + else + first_point = (FT_UShort)( CUR.pts.contours[contour - 1] + 1 - + CUR.pts.first_point ); + + last_point = (FT_UShort)( CUR.pts.contours[contour] - + CUR.pts.first_point ); + + /* XXX: this is probably wrong... at least it prevents memory */ + /* corruption when zp2 is the twilight zone */ + if ( BOUNDS( last_point, CUR.zp2.n_points ) ) + { + if ( CUR.zp2.n_points > 0 ) + last_point = (FT_UShort)(CUR.zp2.n_points - 1); + else + last_point = 0; + } + + /* XXX: UNDOCUMENTED! SHC touches the points */ + for ( i = first_point; i <= last_point; i++ ) + { + if ( zp.cur != CUR.zp2.cur || refp != i ) + MOVE_Zp2_Point( i, dx, dy, TRUE ); + } + } + + + /*************************************************************************/ + /* */ + /* SHZ[a]: SHift Zone */ + /* Opcode range: 0x36-37 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SHZ( INS_ARG ) + { + TT_GlyphZoneRec zp; + FT_UShort refp; + FT_F26Dot6 dx, + dy; + + FT_UShort last_point, i; + + + if ( BOUNDS( args[0], 2 ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) + return; + + /* XXX: UNDOCUMENTED! SHZ doesn't move the phantom points. */ + /* Twilight zone has no contours, so use `n_points'. */ + /* Normal zone's `n_points' includes phantoms, so must */ + /* use end of last contour. */ + if ( CUR.GS.gep2 == 0 && CUR.zp2.n_points > 0 ) + last_point = (FT_UShort)( CUR.zp2.n_points - 1 ); + else if ( CUR.GS.gep2 == 1 && CUR.zp2.n_contours > 0 ) + { + last_point = (FT_UShort)( CUR.zp2.contours[CUR.zp2.n_contours - 1] ); + + if ( BOUNDS( last_point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + last_point = 0; + + /* XXX: UNDOCUMENTED! SHZ doesn't touch the points */ + for ( i = 0; i <= last_point; i++ ) + { + if ( zp.cur != CUR.zp2.cur || refp != i ) + MOVE_Zp2_Point( i, dx, dy, FALSE ); + } + } + + + /*************************************************************************/ + /* */ + /* SHPIX[]: SHift points by a PIXel amount */ + /* Opcode range: 0x38 */ + /* Stack: f26.6 uint32... --> */ + /* */ + static void + Ins_SHPIX( INS_ARG ) + { + FT_F26Dot6 dx, dy; + FT_UShort point; + + + if ( CUR.top < CUR.GS.loop + 1 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + { + dx = TT_MulFix14( (FT_UInt32)args[0], 0x4000 ); + dy = 0; + } + else + { + dx = 0; + dy = TT_MulFix14( (FT_UInt32)args[0], 0x4000 ); + } + } + else +#endif + { + dx = TT_MulFix14( (FT_UInt32)args[0], CUR.GS.freeVector.x ); + dy = TT_MulFix14( (FT_UInt32)args[0], CUR.GS.freeVector.y ); + } + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + MOVE_Zp2_Point( point, dx, dy, TRUE ); + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* MSIRP[a]: Move Stack Indirect Relative Position */ + /* Opcode range: 0x3A-0x3B */ + /* Stack: f26.6 uint32 --> */ + /* */ + static void + Ins_MSIRP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 distance; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp1.n_points ) || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + /* XXX: UNDOCUMENTED! behaviour */ + if ( CUR.GS.gep1 == 0 ) /* if the point that is to be moved */ + /* is in twilight zone */ + { + CUR.zp1.org[point] = CUR.zp0.org[CUR.GS.rp0]; + CUR_Func_move_orig( &CUR.zp1, point, args[1] ); + CUR.zp1.cur[point] = CUR.zp1.org[point]; + } + + distance = CUR_Func_project( CUR.zp1.cur + point, + CUR.zp0.cur + CUR.GS.rp0 ); + + CUR_Func_move( &CUR.zp1, point, args[1] - distance ); + + CUR.GS.rp1 = CUR.GS.rp0; + CUR.GS.rp2 = point; + + if ( ( CUR.opcode & 1 ) != 0 ) + CUR.GS.rp0 = point; + } + + + /*************************************************************************/ + /* */ + /* MDAP[a]: Move Direct Absolute Point */ + /* Opcode range: 0x2E-0x2F */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_MDAP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 cur_dist, + distance; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + /* XXX: Is there some undocumented feature while in the */ + /* twilight zone? ? */ + if ( ( CUR.opcode & 1 ) != 0 ) + { + cur_dist = CUR_fast_project( &CUR.zp0.cur[point] ); + distance = CUR_Func_round( cur_dist, + CUR.tt_metrics.compensations[0] ) - cur_dist; + } + else + distance = 0; + + CUR_Func_move( &CUR.zp0, point, distance ); + + CUR.GS.rp0 = point; + CUR.GS.rp1 = point; + } + + + /*************************************************************************/ + /* */ + /* MIAP[a]: Move Indirect Absolute Point */ + /* Opcode range: 0x3E-0x3F */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_MIAP( INS_ARG ) + { + FT_ULong cvtEntry; + FT_UShort point; + FT_F26Dot6 distance, + org_dist; + + + cvtEntry = (FT_ULong)args[1]; + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp0.n_points ) || + BOUNDSL( cvtEntry, CUR.cvtSize ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + /* XXX: UNDOCUMENTED! */ + /* */ + /* The behaviour of an MIAP instruction is quite */ + /* different when used in the twilight zone. */ + /* */ + /* First, no control value cut-in test is performed */ + /* as it would fail anyway. Second, the original */ + /* point, i.e. (org_x,org_y) of zp0.point, is set */ + /* to the absolute, unrounded distance found in */ + /* the CVT. */ + /* */ + /* This is used in the CVT programs of the Microsoft */ + /* fonts Arial, Times, etc., in order to re-adjust */ + /* some key font heights. It allows the use of the */ + /* IP instruction in the twilight zone, which */ + /* otherwise would be `illegal' according to the */ + /* specification. */ + /* */ + /* We implement it with a special sequence for the */ + /* twilight zone. This is a bad hack, but it seems */ + /* to work. */ + + distance = CUR_Func_read_cvt( cvtEntry ); + + if ( CUR.GS.gep0 == 0 ) /* If in twilight zone */ + { + CUR.zp0.org[point].x = TT_MulFix14( (FT_UInt32)distance, CUR.GS.freeVector.x ); + CUR.zp0.org[point].y = TT_MulFix14( (FT_UInt32)distance, CUR.GS.freeVector.y ), + CUR.zp0.cur[point] = CUR.zp0.org[point]; + } + + org_dist = CUR_fast_project( &CUR.zp0.cur[point] ); + + if ( ( CUR.opcode & 1 ) != 0 ) /* rounding and control cutin flag */ + { + if ( FT_ABS( distance - org_dist ) > CUR.GS.control_value_cutin ) + distance = org_dist; + + distance = CUR_Func_round( distance, CUR.tt_metrics.compensations[0] ); + } + + CUR_Func_move( &CUR.zp0, point, distance - org_dist ); + + Fail: + CUR.GS.rp0 = point; + CUR.GS.rp1 = point; + } + + + /*************************************************************************/ + /* */ + /* MDRP[abcde]: Move Direct Relative Point */ + /* Opcode range: 0xC0-0xDF */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_MDRP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 org_dist, distance; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp1.n_points ) || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + /* XXX: Is there some undocumented feature while in the */ + /* twilight zone? */ + + /* XXX: UNDOCUMENTED: twilight zone special case */ + + if ( CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 ) + { + FT_Vector* vec1 = &CUR.zp1.org[point]; + FT_Vector* vec2 = &CUR.zp0.org[CUR.GS.rp0]; + + + org_dist = CUR_Func_dualproj( vec1, vec2 ); + } + else + { + FT_Vector* vec1 = &CUR.zp1.orus[point]; + FT_Vector* vec2 = &CUR.zp0.orus[CUR.GS.rp0]; + + + if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) + { + /* this should be faster */ + org_dist = CUR_Func_dualproj( vec1, vec2 ); + org_dist = TT_MULFIX( org_dist, CUR.metrics.x_scale ); + } + else + { + FT_Vector vec; + + + vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale ); + vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale ); + + org_dist = CUR_fast_dualproj( &vec ); + } + } + + /* single width cut-in test */ + + if ( FT_ABS( org_dist - CUR.GS.single_width_value ) < + CUR.GS.single_width_cutin ) + { + if ( org_dist >= 0 ) + org_dist = CUR.GS.single_width_value; + else + org_dist = -CUR.GS.single_width_value; + } + + /* round flag */ + + if ( ( CUR.opcode & 4 ) != 0 ) + distance = CUR_Func_round( + org_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + else + distance = ROUND_None( + org_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + + /* minimum distance flag */ + + if ( ( CUR.opcode & 8 ) != 0 ) + { + if ( org_dist >= 0 ) + { + if ( distance < CUR.GS.minimum_distance ) + distance = CUR.GS.minimum_distance; + } + else + { + if ( distance > -CUR.GS.minimum_distance ) + distance = -CUR.GS.minimum_distance; + } + } + + /* now move the point */ + + org_dist = CUR_Func_project( CUR.zp1.cur + point, + CUR.zp0.cur + CUR.GS.rp0 ); + + CUR_Func_move( &CUR.zp1, point, distance - org_dist ); + + Fail: + CUR.GS.rp1 = CUR.GS.rp0; + CUR.GS.rp2 = point; + + if ( ( CUR.opcode & 16 ) != 0 ) + CUR.GS.rp0 = point; + } + + + /*************************************************************************/ + /* */ + /* MIRP[abcde]: Move Indirect Relative Point */ + /* Opcode range: 0xE0-0xFF */ + /* Stack: int32? uint32 --> */ + /* */ + static void + Ins_MIRP( INS_ARG ) + { + FT_UShort point; + FT_ULong cvtEntry; + + FT_F26Dot6 cvt_dist, + distance, + cur_dist, + org_dist; + + + point = (FT_UShort)args[0]; + cvtEntry = (FT_ULong)( args[1] + 1 ); + + /* XXX: UNDOCUMENTED! cvt[-1] = 0 always */ + + if ( BOUNDS( point, CUR.zp1.n_points ) || + BOUNDSL( cvtEntry, CUR.cvtSize + 1 ) || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + if ( !cvtEntry ) + cvt_dist = 0; + else + cvt_dist = CUR_Func_read_cvt( cvtEntry - 1 ); + + /* single width test */ + + if ( FT_ABS( cvt_dist - CUR.GS.single_width_value ) < + CUR.GS.single_width_cutin ) + { + if ( cvt_dist >= 0 ) + cvt_dist = CUR.GS.single_width_value; + else + cvt_dist = -CUR.GS.single_width_value; + } + + /* XXX: UNDOCUMENTED! -- twilight zone */ + + if ( CUR.GS.gep1 == 0 ) + { + CUR.zp1.org[point].x = CUR.zp0.org[CUR.GS.rp0].x + + TT_MulFix14( (FT_UInt32)cvt_dist, + CUR.GS.freeVector.x ); + + CUR.zp1.org[point].y = CUR.zp0.org[CUR.GS.rp0].y + + TT_MulFix14( (FT_UInt32)cvt_dist, + CUR.GS.freeVector.y ); + + CUR.zp1.cur[point] = CUR.zp0.cur[point]; + } + + org_dist = CUR_Func_dualproj( &CUR.zp1.org[point], + &CUR.zp0.org[CUR.GS.rp0] ); + cur_dist = CUR_Func_project ( &CUR.zp1.cur[point], + &CUR.zp0.cur[CUR.GS.rp0] ); + + /* auto-flip test */ + + if ( CUR.GS.auto_flip ) + { + if ( ( org_dist ^ cvt_dist ) < 0 ) + cvt_dist = -cvt_dist; + } + + /* control value cutin and round */ + + if ( ( CUR.opcode & 4 ) != 0 ) + { + /* XXX: UNDOCUMENTED! Only perform cut-in test when both points */ + /* refer to the same zone. */ + + if ( CUR.GS.gep0 == CUR.GS.gep1 ) + { + /* XXX: According to Greg Hitchcock, the following wording is */ + /* the right one: */ + /* */ + /* When the absolute difference between the value in */ + /* the table [CVT] and the measurement directly from */ + /* the outline is _greater_ than the cut_in value, the */ + /* outline measurement is used. */ + /* */ + /* This is from `instgly.doc'. The description in */ + /* `ttinst2.doc', version 1.66, is thus incorrect since */ + /* it implies `>=' instead of `>'. */ + + if ( FT_ABS( cvt_dist - org_dist ) > CUR.GS.control_value_cutin ) + cvt_dist = org_dist; + } + + distance = CUR_Func_round( + cvt_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + } + else + distance = ROUND_None( + cvt_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + + /* minimum distance test */ + + if ( ( CUR.opcode & 8 ) != 0 ) + { + if ( org_dist >= 0 ) + { + if ( distance < CUR.GS.minimum_distance ) + distance = CUR.GS.minimum_distance; + } + else + { + if ( distance > -CUR.GS.minimum_distance ) + distance = -CUR.GS.minimum_distance; + } + } + + CUR_Func_move( &CUR.zp1, point, distance - cur_dist ); + + Fail: + CUR.GS.rp1 = CUR.GS.rp0; + + if ( ( CUR.opcode & 16 ) != 0 ) + CUR.GS.rp0 = point; + + /* XXX: UNDOCUMENTED! */ + CUR.GS.rp2 = point; + } + + + /*************************************************************************/ + /* */ + /* ALIGNRP[]: ALIGN Relative Point */ + /* Opcode range: 0x3C */ + /* Stack: uint32 uint32... --> */ + /* */ + static void + Ins_ALIGNRP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 distance; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.zp1.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + { + distance = CUR_Func_project( CUR.zp1.cur + point, + CUR.zp0.cur + CUR.GS.rp0 ); + + CUR_Func_move( &CUR.zp1, point, -distance ); + } + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* ISECT[]: moves point to InterSECTion */ + /* Opcode range: 0x0F */ + /* Stack: 5 * uint32 --> */ + /* */ + static void + Ins_ISECT( INS_ARG ) + { + FT_UShort point, + a0, a1, + b0, b1; + + FT_F26Dot6 discriminant; + + FT_F26Dot6 dx, dy, + dax, day, + dbx, dby; + + FT_F26Dot6 val; + + FT_Vector R; + + + point = (FT_UShort)args[0]; + + a0 = (FT_UShort)args[1]; + a1 = (FT_UShort)args[2]; + b0 = (FT_UShort)args[3]; + b1 = (FT_UShort)args[4]; + + if ( BOUNDS( b0, CUR.zp0.n_points ) || + BOUNDS( b1, CUR.zp0.n_points ) || + BOUNDS( a0, CUR.zp1.n_points ) || + BOUNDS( a1, CUR.zp1.n_points ) || + BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + dbx = CUR.zp0.cur[b1].x - CUR.zp0.cur[b0].x; + dby = CUR.zp0.cur[b1].y - CUR.zp0.cur[b0].y; + + dax = CUR.zp1.cur[a1].x - CUR.zp1.cur[a0].x; + day = CUR.zp1.cur[a1].y - CUR.zp1.cur[a0].y; + + dx = CUR.zp0.cur[b0].x - CUR.zp1.cur[a0].x; + dy = CUR.zp0.cur[b0].y - CUR.zp1.cur[a0].y; + + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_BOTH; + + discriminant = TT_MULDIV( dax, -dby, 0x40 ) + + TT_MULDIV( day, dbx, 0x40 ); + + if ( FT_ABS( discriminant ) >= 0x40 ) + { + val = TT_MULDIV( dx, -dby, 0x40 ) + TT_MULDIV( dy, dbx, 0x40 ); + + R.x = TT_MULDIV( val, dax, discriminant ); + R.y = TT_MULDIV( val, day, discriminant ); + + CUR.zp2.cur[point].x = CUR.zp1.cur[a0].x + R.x; + CUR.zp2.cur[point].y = CUR.zp1.cur[a0].y + R.y; + } + else + { + /* else, take the middle of the middles of A and B */ + + CUR.zp2.cur[point].x = ( CUR.zp1.cur[a0].x + + CUR.zp1.cur[a1].x + + CUR.zp0.cur[b0].x + + CUR.zp0.cur[b1].x ) / 4; + CUR.zp2.cur[point].y = ( CUR.zp1.cur[a0].y + + CUR.zp1.cur[a1].y + + CUR.zp0.cur[b0].y + + CUR.zp0.cur[b1].y ) / 4; + } + } + + + /*************************************************************************/ + /* */ + /* ALIGNPTS[]: ALIGN PoinTS */ + /* Opcode range: 0x27 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_ALIGNPTS( INS_ARG ) + { + FT_UShort p1, p2; + FT_F26Dot6 distance; + + + p1 = (FT_UShort)args[0]; + p2 = (FT_UShort)args[1]; + + if ( BOUNDS( p1, CUR.zp1.n_points ) || + BOUNDS( p2, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + distance = CUR_Func_project( CUR.zp0.cur + p2, + CUR.zp1.cur + p1 ) / 2; + + CUR_Func_move( &CUR.zp1, p1, distance ); + CUR_Func_move( &CUR.zp0, p2, -distance ); + } + + + /*************************************************************************/ + /* */ + /* IP[]: Interpolate Point */ + /* Opcode range: 0x39 */ + /* Stack: uint32... --> */ + /* */ + + /* SOMETIMES, DUMBER CODE IS BETTER CODE */ + + static void + Ins_IP( INS_ARG ) + { + FT_F26Dot6 old_range, cur_range; + FT_Vector* orus_base; + FT_Vector* cur_base; + FT_Int twilight; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + /* + * We need to deal in a special way with the twilight zone. + * Otherwise, by definition, the value of CUR.twilight.orus[n] is (0,0), + * for every n. + */ + twilight = CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 || CUR.GS.gep2 == 0; + + if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + if ( twilight ) + orus_base = &CUR.zp0.org[CUR.GS.rp1]; + else + orus_base = &CUR.zp0.orus[CUR.GS.rp1]; + + cur_base = &CUR.zp0.cur[CUR.GS.rp1]; + + /* XXX: There are some glyphs in some braindead but popular */ + /* fonts out there (e.g. [aeu]grave in monotype.ttf) */ + /* calling IP[] with bad values of rp[12]. */ + /* Do something sane when this odd thing happens. */ + if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) || + BOUNDS( CUR.GS.rp2, CUR.zp1.n_points ) ) + { + old_range = 0; + cur_range = 0; + } + else + { + if ( twilight ) + old_range = CUR_Func_dualproj( &CUR.zp1.org[CUR.GS.rp2], + orus_base ); + else + old_range = CUR_Func_dualproj( &CUR.zp1.orus[CUR.GS.rp2], + orus_base ); + + cur_range = CUR_Func_project ( &CUR.zp1.cur[CUR.GS.rp2], cur_base ); + } + + for ( ; CUR.GS.loop > 0; --CUR.GS.loop ) + { + FT_UInt point = (FT_UInt)CUR.stack[--CUR.args]; + FT_F26Dot6 org_dist, cur_dist, new_dist; + + + /* check point bounds */ + if ( BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + continue; + } + + if ( twilight ) + org_dist = CUR_Func_dualproj( &CUR.zp2.org[point], orus_base ); + else + org_dist = CUR_Func_dualproj( &CUR.zp2.orus[point], orus_base ); + + cur_dist = CUR_Func_project ( &CUR.zp2.cur[point], cur_base ); + + if ( org_dist ) + new_dist = ( old_range != 0 ) + ? TT_MULDIV( org_dist, cur_range, old_range ) + : cur_dist; + else + new_dist = 0; + + CUR_Func_move( &CUR.zp2, (FT_UShort)point, new_dist - cur_dist ); + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* UTP[a]: UnTouch Point */ + /* Opcode range: 0x29 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_UTP( INS_ARG ) + { + FT_UShort point; + FT_Byte mask; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + mask = 0xFF; + + if ( CUR.GS.freeVector.x != 0 ) + mask &= ~FT_CURVE_TAG_TOUCH_X; + + if ( CUR.GS.freeVector.y != 0 ) + mask &= ~FT_CURVE_TAG_TOUCH_Y; + + CUR.zp0.tags[point] &= mask; + } + + + /* Local variables for Ins_IUP: */ + typedef struct IUP_WorkerRec_ + { + FT_Vector* orgs; /* original and current coordinate */ + FT_Vector* curs; /* arrays */ + FT_Vector* orus; + FT_UInt max_points; + + } IUP_WorkerRec, *IUP_Worker; + + + static void + _iup_worker_shift( IUP_Worker worker, + FT_UInt p1, + FT_UInt p2, + FT_UInt p ) + { + FT_UInt i; + FT_F26Dot6 dx; + + + dx = worker->curs[p].x - worker->orgs[p].x; + if ( dx != 0 ) + { + for ( i = p1; i < p; i++ ) + worker->curs[i].x += dx; + + for ( i = p + 1; i <= p2; i++ ) + worker->curs[i].x += dx; + } + } + + + static void + _iup_worker_interpolate( IUP_Worker worker, + FT_UInt p1, + FT_UInt p2, + FT_UInt ref1, + FT_UInt ref2 ) + { + FT_UInt i; + FT_F26Dot6 orus1, orus2, org1, org2, delta1, delta2; + + + if ( p1 > p2 ) + return; + + if ( BOUNDS( ref1, worker->max_points ) || + BOUNDS( ref2, worker->max_points ) ) + return; + + orus1 = worker->orus[ref1].x; + orus2 = worker->orus[ref2].x; + + if ( orus1 > orus2 ) + { + FT_F26Dot6 tmp_o; + FT_UInt tmp_r; + + + tmp_o = orus1; + orus1 = orus2; + orus2 = tmp_o; + + tmp_r = ref1; + ref1 = ref2; + ref2 = tmp_r; + } + + org1 = worker->orgs[ref1].x; + org2 = worker->orgs[ref2].x; + delta1 = worker->curs[ref1].x - org1; + delta2 = worker->curs[ref2].x - org2; + + if ( orus1 == orus2 ) + { + /* simple shift of untouched points */ + for ( i = p1; i <= p2; i++ ) + { + FT_F26Dot6 x = worker->orgs[i].x; + + + if ( x <= org1 ) + x += delta1; + else + x += delta2; + + worker->curs[i].x = x; + } + } + else + { + FT_Fixed scale = 0; + FT_Bool scale_valid = 0; + + + /* interpolation */ + for ( i = p1; i <= p2; i++ ) + { + FT_F26Dot6 x = worker->orgs[i].x; + + + if ( x <= org1 ) + x += delta1; + + else if ( x >= org2 ) + x += delta2; + + else + { + if ( !scale_valid ) + { + scale_valid = 1; + scale = TT_MULDIV( org2 + delta2 - ( org1 + delta1 ), + 0x10000L, orus2 - orus1 ); + } + + x = ( org1 + delta1 ) + + TT_MULFIX( worker->orus[i].x - orus1, scale ); + } + worker->curs[i].x = x; + } + } + } + + + /*************************************************************************/ + /* */ + /* IUP[a]: Interpolate Untouched Points */ + /* Opcode range: 0x30-0x31 */ + /* Stack: --> */ + /* */ + static void + Ins_IUP( INS_ARG ) + { + IUP_WorkerRec V; + FT_Byte mask; + + FT_UInt first_point; /* first point of contour */ + FT_UInt end_point; /* end point (last+1) of contour */ + + FT_UInt first_touched; /* first touched point in contour */ + FT_UInt cur_touched; /* current touched point in contour */ + + FT_UInt point; /* current point */ + FT_Short contour; /* current contour */ + + FT_UNUSED_ARG; + + + /* ignore empty outlines */ + if ( CUR.pts.n_contours == 0 ) + return; + + if ( CUR.opcode & 1 ) + { + mask = FT_CURVE_TAG_TOUCH_X; + V.orgs = CUR.pts.org; + V.curs = CUR.pts.cur; + V.orus = CUR.pts.orus; + } + else + { + mask = FT_CURVE_TAG_TOUCH_Y; + V.orgs = (FT_Vector*)( (FT_Pos*)CUR.pts.org + 1 ); + V.curs = (FT_Vector*)( (FT_Pos*)CUR.pts.cur + 1 ); + V.orus = (FT_Vector*)( (FT_Pos*)CUR.pts.orus + 1 ); + } + V.max_points = CUR.pts.n_points; + + contour = 0; + point = 0; + + do + { + end_point = CUR.pts.contours[contour] - CUR.pts.first_point; + first_point = point; + + if ( BOUNDS ( end_point, CUR.pts.n_points ) ) + end_point = CUR.pts.n_points - 1; + + while ( point <= end_point && ( CUR.pts.tags[point] & mask ) == 0 ) + point++; + + if ( point <= end_point ) + { + first_touched = point; + cur_touched = point; + + point++; + + while ( point <= end_point ) + { + if ( ( CUR.pts.tags[point] & mask ) != 0 ) + { + _iup_worker_interpolate( &V, + cur_touched + 1, + point - 1, + cur_touched, + point ); + cur_touched = point; + } + + point++; + } + + if ( cur_touched == first_touched ) + _iup_worker_shift( &V, first_point, end_point, cur_touched ); + else + { + _iup_worker_interpolate( &V, + (FT_UShort)( cur_touched + 1 ), + end_point, + cur_touched, + first_touched ); + + if ( first_touched > 0 ) + _iup_worker_interpolate( &V, + first_point, + first_touched - 1, + cur_touched, + first_touched ); + } + } + contour++; + } while ( contour < CUR.pts.n_contours ); + } + + + /*************************************************************************/ + /* */ + /* DELTAPn[]: DELTA exceptions P1, P2, P3 */ + /* Opcode range: 0x5D,0x71,0x72 */ + /* Stack: uint32 (2 * uint32)... --> */ + /* */ + static void + Ins_DELTAP( INS_ARG ) + { + FT_ULong k, nump; + FT_UShort A; + FT_ULong C; + FT_Long B; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + /* Delta hinting is covered by US Patent 5159668. */ + if ( CUR.face->unpatented_hinting ) + { + FT_Long n = args[0] * 2; + + + if ( CUR.args < n ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + n = CUR.args; + } + + CUR.args -= n; + CUR.new_top = CUR.args; + return; + } +#endif + + nump = (FT_ULong)args[0]; /* some points theoretically may occur more + than once, thus UShort isn't enough */ + + for ( k = 1; k <= nump; k++ ) + { + if ( CUR.args < 2 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + CUR.args = 0; + goto Fail; + } + + CUR.args -= 2; + + A = (FT_UShort)CUR.stack[CUR.args + 1]; + B = CUR.stack[CUR.args]; + + /* XXX: Because some popular fonts contain some invalid DeltaP */ + /* instructions, we simply ignore them when the stacked */ + /* point reference is off limit, rather than returning an */ + /* error. As a delta instruction doesn't change a glyph */ + /* in great ways, this shouldn't be a problem. */ + + if ( !BOUNDS( A, CUR.zp0.n_points ) ) + { + C = ( (FT_ULong)B & 0xF0 ) >> 4; + + switch ( CUR.opcode ) + { + case 0x5D: + break; + + case 0x71: + C += 16; + break; + + case 0x72: + C += 32; + break; + } + + C += CUR.GS.delta_base; + + if ( CURRENT_Ppem() == (FT_Long)C ) + { + B = ( (FT_ULong)B & 0xF ) - 8; + if ( B >= 0 ) + B++; + B = B * 64 / ( 1L << CUR.GS.delta_shift ); + + CUR_Func_move( &CUR.zp0, A, B ); + } + } + else + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + } + + Fail: + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* DELTACn[]: DELTA exceptions C1, C2, C3 */ + /* Opcode range: 0x73,0x74,0x75 */ + /* Stack: uint32 (2 * uint32)... --> */ + /* */ + static void + Ins_DELTAC( INS_ARG ) + { + FT_ULong nump, k; + FT_ULong A, C; + FT_Long B; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + /* Delta hinting is covered by US Patent 5159668. */ + if ( CUR.face->unpatented_hinting ) + { + FT_Long n = args[0] * 2; + + + if ( CUR.args < n ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + n = CUR.args; + } + + CUR.args -= n; + CUR.new_top = CUR.args; + return; + } +#endif + + nump = (FT_ULong)args[0]; + + for ( k = 1; k <= nump; k++ ) + { + if ( CUR.args < 2 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + CUR.args = 0; + goto Fail; + } + + CUR.args -= 2; + + A = (FT_ULong)CUR.stack[CUR.args + 1]; + B = CUR.stack[CUR.args]; + + if ( BOUNDSL( A, CUR.cvtSize ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + { + C = ( (FT_ULong)B & 0xF0 ) >> 4; + + switch ( CUR.opcode ) + { + case 0x73: + break; + + case 0x74: + C += 16; + break; + + case 0x75: + C += 32; + break; + } + + C += CUR.GS.delta_base; + + if ( CURRENT_Ppem() == (FT_Long)C ) + { + B = ( (FT_ULong)B & 0xF ) - 8; + if ( B >= 0 ) + B++; + B = B * 64 / ( 1L << CUR.GS.delta_shift ); + + CUR_Func_move_cvt( A, B ); + } + } + } + + Fail: + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* MISC. INSTRUCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* GETINFO[]: GET INFOrmation */ + /* Opcode range: 0x88 */ + /* Stack: uint32 --> uint32 */ + /* */ + static void + Ins_GETINFO( INS_ARG ) + { + FT_Long K; + + + K = 0; + + /* We return MS rasterizer version 1.7 for the font scaler. */ + if ( ( args[0] & 1 ) != 0 ) + K = 35; + + /* Has the glyph been rotated? */ + if ( ( args[0] & 2 ) != 0 && CUR.tt_metrics.rotated ) + K |= 0x80; + + /* Has the glyph been stretched? */ + if ( ( args[0] & 4 ) != 0 && CUR.tt_metrics.stretched ) + K |= 1 << 8; + + /* Are we hinting for grayscale? */ + if ( ( args[0] & 32 ) != 0 && CUR.grayscale ) + K |= 1 << 12; + + args[0] = K; + } + + + static void + Ins_UNKNOWN( INS_ARG ) + { + TT_DefRecord* def = CUR.IDefs; + TT_DefRecord* limit = def + CUR.numIDefs; + + FT_UNUSED_ARG; + + + for ( ; def < limit; def++ ) + { + if ( (FT_Byte)def->opc == CUR.opcode && def->active ) + { + TT_CallRec* call; + + + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + call = CUR.callStack + CUR.callTop++; + + call->Caller_Range = CUR.curRange; + call->Caller_IP = CUR.IP + 1; + call->Cur_Count = 1; + call->Cur_Restart = def->start; + + INS_Goto_CodeRange( def->range, def->start ); + + CUR.step_ins = FALSE; + return; + } + } + + CUR.error = TT_Err_Invalid_Opcode; + } + + +#ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH + + + static + TInstruction_Function Instruct_Dispatch[256] = + { + /* Opcodes are gathered in groups of 16. */ + /* Please keep the spaces as they are. */ + + /* SVTCA y */ Ins_SVTCA, + /* SVTCA x */ Ins_SVTCA, + /* SPvTCA y */ Ins_SPVTCA, + /* SPvTCA x */ Ins_SPVTCA, + /* SFvTCA y */ Ins_SFVTCA, + /* SFvTCA x */ Ins_SFVTCA, + /* SPvTL // */ Ins_SPVTL, + /* SPvTL + */ Ins_SPVTL, + /* SFvTL // */ Ins_SFVTL, + /* SFvTL + */ Ins_SFVTL, + /* SPvFS */ Ins_SPVFS, + /* SFvFS */ Ins_SFVFS, + /* GPV */ Ins_GPV, + /* GFV */ Ins_GFV, + /* SFvTPv */ Ins_SFVTPV, + /* ISECT */ Ins_ISECT, + + /* SRP0 */ Ins_SRP0, + /* SRP1 */ Ins_SRP1, + /* SRP2 */ Ins_SRP2, + /* SZP0 */ Ins_SZP0, + /* SZP1 */ Ins_SZP1, + /* SZP2 */ Ins_SZP2, + /* SZPS */ Ins_SZPS, + /* SLOOP */ Ins_SLOOP, + /* RTG */ Ins_RTG, + /* RTHG */ Ins_RTHG, + /* SMD */ Ins_SMD, + /* ELSE */ Ins_ELSE, + /* JMPR */ Ins_JMPR, + /* SCvTCi */ Ins_SCVTCI, + /* SSwCi */ Ins_SSWCI, + /* SSW */ Ins_SSW, + + /* DUP */ Ins_DUP, + /* POP */ Ins_POP, + /* CLEAR */ Ins_CLEAR, + /* SWAP */ Ins_SWAP, + /* DEPTH */ Ins_DEPTH, + /* CINDEX */ Ins_CINDEX, + /* MINDEX */ Ins_MINDEX, + /* AlignPTS */ Ins_ALIGNPTS, + /* INS_0x28 */ Ins_UNKNOWN, + /* UTP */ Ins_UTP, + /* LOOPCALL */ Ins_LOOPCALL, + /* CALL */ Ins_CALL, + /* FDEF */ Ins_FDEF, + /* ENDF */ Ins_ENDF, + /* MDAP[0] */ Ins_MDAP, + /* MDAP[1] */ Ins_MDAP, + + /* IUP[0] */ Ins_IUP, + /* IUP[1] */ Ins_IUP, + /* SHP[0] */ Ins_SHP, + /* SHP[1] */ Ins_SHP, + /* SHC[0] */ Ins_SHC, + /* SHC[1] */ Ins_SHC, + /* SHZ[0] */ Ins_SHZ, + /* SHZ[1] */ Ins_SHZ, + /* SHPIX */ Ins_SHPIX, + /* IP */ Ins_IP, + /* MSIRP[0] */ Ins_MSIRP, + /* MSIRP[1] */ Ins_MSIRP, + /* AlignRP */ Ins_ALIGNRP, + /* RTDG */ Ins_RTDG, + /* MIAP[0] */ Ins_MIAP, + /* MIAP[1] */ Ins_MIAP, + + /* NPushB */ Ins_NPUSHB, + /* NPushW */ Ins_NPUSHW, + /* WS */ Ins_WS, + /* RS */ Ins_RS, + /* WCvtP */ Ins_WCVTP, + /* RCvt */ Ins_RCVT, + /* GC[0] */ Ins_GC, + /* GC[1] */ Ins_GC, + /* SCFS */ Ins_SCFS, + /* MD[0] */ Ins_MD, + /* MD[1] */ Ins_MD, + /* MPPEM */ Ins_MPPEM, + /* MPS */ Ins_MPS, + /* FlipON */ Ins_FLIPON, + /* FlipOFF */ Ins_FLIPOFF, + /* DEBUG */ Ins_DEBUG, + + /* LT */ Ins_LT, + /* LTEQ */ Ins_LTEQ, + /* GT */ Ins_GT, + /* GTEQ */ Ins_GTEQ, + /* EQ */ Ins_EQ, + /* NEQ */ Ins_NEQ, + /* ODD */ Ins_ODD, + /* EVEN */ Ins_EVEN, + /* IF */ Ins_IF, + /* EIF */ Ins_EIF, + /* AND */ Ins_AND, + /* OR */ Ins_OR, + /* NOT */ Ins_NOT, + /* DeltaP1 */ Ins_DELTAP, + /* SDB */ Ins_SDB, + /* SDS */ Ins_SDS, + + /* ADD */ Ins_ADD, + /* SUB */ Ins_SUB, + /* DIV */ Ins_DIV, + /* MUL */ Ins_MUL, + /* ABS */ Ins_ABS, + /* NEG */ Ins_NEG, + /* FLOOR */ Ins_FLOOR, + /* CEILING */ Ins_CEILING, + /* ROUND[0] */ Ins_ROUND, + /* ROUND[1] */ Ins_ROUND, + /* ROUND[2] */ Ins_ROUND, + /* ROUND[3] */ Ins_ROUND, + /* NROUND[0] */ Ins_NROUND, + /* NROUND[1] */ Ins_NROUND, + /* NROUND[2] */ Ins_NROUND, + /* NROUND[3] */ Ins_NROUND, + + /* WCvtF */ Ins_WCVTF, + /* DeltaP2 */ Ins_DELTAP, + /* DeltaP3 */ Ins_DELTAP, + /* DeltaCn[0] */ Ins_DELTAC, + /* DeltaCn[1] */ Ins_DELTAC, + /* DeltaCn[2] */ Ins_DELTAC, + /* SROUND */ Ins_SROUND, + /* S45Round */ Ins_S45ROUND, + /* JROT */ Ins_JROT, + /* JROF */ Ins_JROF, + /* ROFF */ Ins_ROFF, + /* INS_0x7B */ Ins_UNKNOWN, + /* RUTG */ Ins_RUTG, + /* RDTG */ Ins_RDTG, + /* SANGW */ Ins_SANGW, + /* AA */ Ins_AA, + + /* FlipPT */ Ins_FLIPPT, + /* FlipRgON */ Ins_FLIPRGON, + /* FlipRgOFF */ Ins_FLIPRGOFF, + /* INS_0x83 */ Ins_UNKNOWN, + /* INS_0x84 */ Ins_UNKNOWN, + /* ScanCTRL */ Ins_SCANCTRL, + /* SDPVTL[0] */ Ins_SDPVTL, + /* SDPVTL[1] */ Ins_SDPVTL, + /* GetINFO */ Ins_GETINFO, + /* IDEF */ Ins_IDEF, + /* ROLL */ Ins_ROLL, + /* MAX */ Ins_MAX, + /* MIN */ Ins_MIN, + /* ScanTYPE */ Ins_SCANTYPE, + /* InstCTRL */ Ins_INSTCTRL, + /* INS_0x8F */ Ins_UNKNOWN, + + /* INS_0x90 */ Ins_UNKNOWN, + /* INS_0x91 */ Ins_UNKNOWN, + /* INS_0x92 */ Ins_UNKNOWN, + /* INS_0x93 */ Ins_UNKNOWN, + /* INS_0x94 */ Ins_UNKNOWN, + /* INS_0x95 */ Ins_UNKNOWN, + /* INS_0x96 */ Ins_UNKNOWN, + /* INS_0x97 */ Ins_UNKNOWN, + /* INS_0x98 */ Ins_UNKNOWN, + /* INS_0x99 */ Ins_UNKNOWN, + /* INS_0x9A */ Ins_UNKNOWN, + /* INS_0x9B */ Ins_UNKNOWN, + /* INS_0x9C */ Ins_UNKNOWN, + /* INS_0x9D */ Ins_UNKNOWN, + /* INS_0x9E */ Ins_UNKNOWN, + /* INS_0x9F */ Ins_UNKNOWN, + + /* INS_0xA0 */ Ins_UNKNOWN, + /* INS_0xA1 */ Ins_UNKNOWN, + /* INS_0xA2 */ Ins_UNKNOWN, + /* INS_0xA3 */ Ins_UNKNOWN, + /* INS_0xA4 */ Ins_UNKNOWN, + /* INS_0xA5 */ Ins_UNKNOWN, + /* INS_0xA6 */ Ins_UNKNOWN, + /* INS_0xA7 */ Ins_UNKNOWN, + /* INS_0xA8 */ Ins_UNKNOWN, + /* INS_0xA9 */ Ins_UNKNOWN, + /* INS_0xAA */ Ins_UNKNOWN, + /* INS_0xAB */ Ins_UNKNOWN, + /* INS_0xAC */ Ins_UNKNOWN, + /* INS_0xAD */ Ins_UNKNOWN, + /* INS_0xAE */ Ins_UNKNOWN, + /* INS_0xAF */ Ins_UNKNOWN, + + /* PushB[0] */ Ins_PUSHB, + /* PushB[1] */ Ins_PUSHB, + /* PushB[2] */ Ins_PUSHB, + /* PushB[3] */ Ins_PUSHB, + /* PushB[4] */ Ins_PUSHB, + /* PushB[5] */ Ins_PUSHB, + /* PushB[6] */ Ins_PUSHB, + /* PushB[7] */ Ins_PUSHB, + /* PushW[0] */ Ins_PUSHW, + /* PushW[1] */ Ins_PUSHW, + /* PushW[2] */ Ins_PUSHW, + /* PushW[3] */ Ins_PUSHW, + /* PushW[4] */ Ins_PUSHW, + /* PushW[5] */ Ins_PUSHW, + /* PushW[6] */ Ins_PUSHW, + /* PushW[7] */ Ins_PUSHW, + + /* MDRP[00] */ Ins_MDRP, + /* MDRP[01] */ Ins_MDRP, + /* MDRP[02] */ Ins_MDRP, + /* MDRP[03] */ Ins_MDRP, + /* MDRP[04] */ Ins_MDRP, + /* MDRP[05] */ Ins_MDRP, + /* MDRP[06] */ Ins_MDRP, + /* MDRP[07] */ Ins_MDRP, + /* MDRP[08] */ Ins_MDRP, + /* MDRP[09] */ Ins_MDRP, + /* MDRP[10] */ Ins_MDRP, + /* MDRP[11] */ Ins_MDRP, + /* MDRP[12] */ Ins_MDRP, + /* MDRP[13] */ Ins_MDRP, + /* MDRP[14] */ Ins_MDRP, + /* MDRP[15] */ Ins_MDRP, + + /* MDRP[16] */ Ins_MDRP, + /* MDRP[17] */ Ins_MDRP, + /* MDRP[18] */ Ins_MDRP, + /* MDRP[19] */ Ins_MDRP, + /* MDRP[20] */ Ins_MDRP, + /* MDRP[21] */ Ins_MDRP, + /* MDRP[22] */ Ins_MDRP, + /* MDRP[23] */ Ins_MDRP, + /* MDRP[24] */ Ins_MDRP, + /* MDRP[25] */ Ins_MDRP, + /* MDRP[26] */ Ins_MDRP, + /* MDRP[27] */ Ins_MDRP, + /* MDRP[28] */ Ins_MDRP, + /* MDRP[29] */ Ins_MDRP, + /* MDRP[30] */ Ins_MDRP, + /* MDRP[31] */ Ins_MDRP, + + /* MIRP[00] */ Ins_MIRP, + /* MIRP[01] */ Ins_MIRP, + /* MIRP[02] */ Ins_MIRP, + /* MIRP[03] */ Ins_MIRP, + /* MIRP[04] */ Ins_MIRP, + /* MIRP[05] */ Ins_MIRP, + /* MIRP[06] */ Ins_MIRP, + /* MIRP[07] */ Ins_MIRP, + /* MIRP[08] */ Ins_MIRP, + /* MIRP[09] */ Ins_MIRP, + /* MIRP[10] */ Ins_MIRP, + /* MIRP[11] */ Ins_MIRP, + /* MIRP[12] */ Ins_MIRP, + /* MIRP[13] */ Ins_MIRP, + /* MIRP[14] */ Ins_MIRP, + /* MIRP[15] */ Ins_MIRP, + + /* MIRP[16] */ Ins_MIRP, + /* MIRP[17] */ Ins_MIRP, + /* MIRP[18] */ Ins_MIRP, + /* MIRP[19] */ Ins_MIRP, + /* MIRP[20] */ Ins_MIRP, + /* MIRP[21] */ Ins_MIRP, + /* MIRP[22] */ Ins_MIRP, + /* MIRP[23] */ Ins_MIRP, + /* MIRP[24] */ Ins_MIRP, + /* MIRP[25] */ Ins_MIRP, + /* MIRP[26] */ Ins_MIRP, + /* MIRP[27] */ Ins_MIRP, + /* MIRP[28] */ Ins_MIRP, + /* MIRP[29] */ Ins_MIRP, + /* MIRP[30] */ Ins_MIRP, + /* MIRP[31] */ Ins_MIRP + }; + + +#endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */ + + + /*************************************************************************/ + /* */ + /* RUN */ + /* */ + /* This function executes a run of opcodes. It will exit in the */ + /* following cases: */ + /* */ + /* - Errors (in which case it returns FALSE). */ + /* */ + /* - Reaching the end of the main code range (returns TRUE). */ + /* Reaching the end of a code range within a function call is an */ + /* error. */ + /* */ + /* - After executing one single opcode, if the flag `Instruction_Trap' */ + /* is set to TRUE (returns TRUE). */ + /* */ + /* On exit with TRUE, test IP < CodeSize to know whether it comes from */ + /* an instruction trap or a normal termination. */ + /* */ + /* */ + /* Note: The documented DEBUG opcode pops a value from the stack. This */ + /* behaviour is unsupported; here a DEBUG opcode is always an */ + /* error. */ + /* */ + /* */ + /* THIS IS THE INTERPRETER'S MAIN LOOP. */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /* documentation is in ttinterp.h */ + + FT_EXPORT_DEF( FT_Error ) + TT_RunIns( TT_ExecContext exc ) + { + FT_Long ins_counter = 0; /* executed instructions counter */ + + +#ifdef TT_CONFIG_OPTION_STATIC_RASTER + cur = *exc; +#endif + + /* set CVT functions */ + CUR.tt_metrics.ratio = 0; + if ( CUR.metrics.x_ppem != CUR.metrics.y_ppem ) + { + /* non-square pixels, use the stretched routines */ + CUR.func_read_cvt = Read_CVT_Stretched; + CUR.func_write_cvt = Write_CVT_Stretched; + CUR.func_move_cvt = Move_CVT_Stretched; + } + else + { + /* square pixels, use normal routines */ + CUR.func_read_cvt = Read_CVT; + CUR.func_write_cvt = Write_CVT; + CUR.func_move_cvt = Move_CVT; + } + + COMPUTE_Funcs(); + COMPUTE_Round( (FT_Byte)exc->GS.round_state ); + + do + { + CUR.opcode = CUR.code[CUR.IP]; + + FT_TRACE7(( " " )); + FT_TRACE7(( opcode_name[CUR.opcode] )); + FT_TRACE7(( "\n" )); + + if ( ( CUR.length = opcode_length[CUR.opcode] ) < 0 ) + { + if ( CUR.IP + 1 > CUR.codeSize ) + goto LErrorCodeOverflow_; + + CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1]; + } + + if ( CUR.IP + CUR.length > CUR.codeSize ) + goto LErrorCodeOverflow_; + + /* First, let's check for empty stack and overflow */ + CUR.args = CUR.top - ( Pop_Push_Count[CUR.opcode] >> 4 ); + + /* `args' is the top of the stack once arguments have been popped. */ + /* One can also interpret it as the index of the last argument. */ + if ( CUR.args < 0 ) + { + FT_UShort i; + + + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Too_Few_Arguments; + goto LErrorLabel_; + } + + /* push zeroes onto the stack */ + for ( i = 0; i < Pop_Push_Count[CUR.opcode] >> 4; i++ ) + CUR.stack[i] = 0; + CUR.args = 0; + } + + CUR.new_top = CUR.args + ( Pop_Push_Count[CUR.opcode] & 15 ); + + /* `new_top' is the new top of the stack, after the instruction's */ + /* execution. `top' will be set to `new_top' after the `switch' */ + /* statement. */ + if ( CUR.new_top > CUR.stackSize ) + { + CUR.error = TT_Err_Stack_Overflow; + goto LErrorLabel_; + } + + CUR.step_ins = TRUE; + CUR.error = TT_Err_Ok; + +#ifdef TT_CONFIG_OPTION_INTERPRETER_SWITCH + + { + FT_Long* args = CUR.stack + CUR.args; + FT_Byte opcode = CUR.opcode; + + +#undef ARRAY_BOUND_ERROR +#define ARRAY_BOUND_ERROR goto Set_Invalid_Ref + + + switch ( opcode ) + { + case 0x00: /* SVTCA y */ + case 0x01: /* SVTCA x */ + case 0x02: /* SPvTCA y */ + case 0x03: /* SPvTCA x */ + case 0x04: /* SFvTCA y */ + case 0x05: /* SFvTCA x */ + { + FT_Short AA, BB; + + + AA = (FT_Short)( ( opcode & 1 ) << 14 ); + BB = (FT_Short)( AA ^ 0x4000 ); + + if ( opcode < 4 ) + { + CUR.GS.projVector.x = AA; + CUR.GS.projVector.y = BB; + + CUR.GS.dualVector.x = AA; + CUR.GS.dualVector.y = BB; + } + else + { + GUESS_VECTOR( projVector ); + } + + if ( ( opcode & 2 ) == 0 ) + { + CUR.GS.freeVector.x = AA; + CUR.GS.freeVector.y = BB; + } + else + { + GUESS_VECTOR( freeVector ); + } + + COMPUTE_Funcs(); + } + break; + + case 0x06: /* SPvTL // */ + case 0x07: /* SPvTL + */ + DO_SPVTL + break; + + case 0x08: /* SFvTL // */ + case 0x09: /* SFvTL + */ + DO_SFVTL + break; + + case 0x0A: /* SPvFS */ + DO_SPVFS + break; + + case 0x0B: /* SFvFS */ + DO_SFVFS + break; + + case 0x0C: /* GPV */ + DO_GPV + break; + + case 0x0D: /* GFV */ + DO_GFV + break; + + case 0x0E: /* SFvTPv */ + DO_SFVTPV + break; + + case 0x0F: /* ISECT */ + Ins_ISECT( EXEC_ARG_ args ); + break; + + case 0x10: /* SRP0 */ + DO_SRP0 + break; + + case 0x11: /* SRP1 */ + DO_SRP1 + break; + + case 0x12: /* SRP2 */ + DO_SRP2 + break; + + case 0x13: /* SZP0 */ + Ins_SZP0( EXEC_ARG_ args ); + break; + + case 0x14: /* SZP1 */ + Ins_SZP1( EXEC_ARG_ args ); + break; + + case 0x15: /* SZP2 */ + Ins_SZP2( EXEC_ARG_ args ); + break; + + case 0x16: /* SZPS */ + Ins_SZPS( EXEC_ARG_ args ); + break; + + case 0x17: /* SLOOP */ + DO_SLOOP + break; + + case 0x18: /* RTG */ + DO_RTG + break; + + case 0x19: /* RTHG */ + DO_RTHG + break; + + case 0x1A: /* SMD */ + DO_SMD + break; + + case 0x1B: /* ELSE */ + Ins_ELSE( EXEC_ARG_ args ); + break; + + case 0x1C: /* JMPR */ + DO_JMPR + break; + + case 0x1D: /* SCVTCI */ + DO_SCVTCI + break; + + case 0x1E: /* SSWCI */ + DO_SSWCI + break; + + case 0x1F: /* SSW */ + DO_SSW + break; + + case 0x20: /* DUP */ + DO_DUP + break; + + case 0x21: /* POP */ + /* nothing :-) */ + break; + + case 0x22: /* CLEAR */ + DO_CLEAR + break; + + case 0x23: /* SWAP */ + DO_SWAP + break; + + case 0x24: /* DEPTH */ + DO_DEPTH + break; + + case 0x25: /* CINDEX */ + DO_CINDEX + break; + + case 0x26: /* MINDEX */ + Ins_MINDEX( EXEC_ARG_ args ); + break; + + case 0x27: /* ALIGNPTS */ + Ins_ALIGNPTS( EXEC_ARG_ args ); + break; + + case 0x28: /* ???? */ + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + case 0x29: /* UTP */ + Ins_UTP( EXEC_ARG_ args ); + break; + + case 0x2A: /* LOOPCALL */ + Ins_LOOPCALL( EXEC_ARG_ args ); + break; + + case 0x2B: /* CALL */ + Ins_CALL( EXEC_ARG_ args ); + break; + + case 0x2C: /* FDEF */ + Ins_FDEF( EXEC_ARG_ args ); + break; + + case 0x2D: /* ENDF */ + Ins_ENDF( EXEC_ARG_ args ); + break; + + case 0x2E: /* MDAP */ + case 0x2F: /* MDAP */ + Ins_MDAP( EXEC_ARG_ args ); + break; + + + case 0x30: /* IUP */ + case 0x31: /* IUP */ + Ins_IUP( EXEC_ARG_ args ); + break; + + case 0x32: /* SHP */ + case 0x33: /* SHP */ + Ins_SHP( EXEC_ARG_ args ); + break; + + case 0x34: /* SHC */ + case 0x35: /* SHC */ + Ins_SHC( EXEC_ARG_ args ); + break; + + case 0x36: /* SHZ */ + case 0x37: /* SHZ */ + Ins_SHZ( EXEC_ARG_ args ); + break; + + case 0x38: /* SHPIX */ + Ins_SHPIX( EXEC_ARG_ args ); + break; + + case 0x39: /* IP */ + Ins_IP( EXEC_ARG_ args ); + break; + + case 0x3A: /* MSIRP */ + case 0x3B: /* MSIRP */ + Ins_MSIRP( EXEC_ARG_ args ); + break; + + case 0x3C: /* AlignRP */ + Ins_ALIGNRP( EXEC_ARG_ args ); + break; + + case 0x3D: /* RTDG */ + DO_RTDG + break; + + case 0x3E: /* MIAP */ + case 0x3F: /* MIAP */ + Ins_MIAP( EXEC_ARG_ args ); + break; + + case 0x40: /* NPUSHB */ + Ins_NPUSHB( EXEC_ARG_ args ); + break; + + case 0x41: /* NPUSHW */ + Ins_NPUSHW( EXEC_ARG_ args ); + break; + + case 0x42: /* WS */ + DO_WS + break; + + Set_Invalid_Ref: + CUR.error = TT_Err_Invalid_Reference; + break; + + case 0x43: /* RS */ + DO_RS + break; + + case 0x44: /* WCVTP */ + DO_WCVTP + break; + + case 0x45: /* RCVT */ + DO_RCVT + break; + + case 0x46: /* GC */ + case 0x47: /* GC */ + Ins_GC( EXEC_ARG_ args ); + break; + + case 0x48: /* SCFS */ + Ins_SCFS( EXEC_ARG_ args ); + break; + + case 0x49: /* MD */ + case 0x4A: /* MD */ + Ins_MD( EXEC_ARG_ args ); + break; + + case 0x4B: /* MPPEM */ + DO_MPPEM + break; + + case 0x4C: /* MPS */ + DO_MPS + break; + + case 0x4D: /* FLIPON */ + DO_FLIPON + break; + + case 0x4E: /* FLIPOFF */ + DO_FLIPOFF + break; + + case 0x4F: /* DEBUG */ + DO_DEBUG + break; + + case 0x50: /* LT */ + DO_LT + break; + + case 0x51: /* LTEQ */ + DO_LTEQ + break; + + case 0x52: /* GT */ + DO_GT + break; + + case 0x53: /* GTEQ */ + DO_GTEQ + break; + + case 0x54: /* EQ */ + DO_EQ + break; + + case 0x55: /* NEQ */ + DO_NEQ + break; + + case 0x56: /* ODD */ + DO_ODD + break; + + case 0x57: /* EVEN */ + DO_EVEN + break; + + case 0x58: /* IF */ + Ins_IF( EXEC_ARG_ args ); + break; + + case 0x59: /* EIF */ + /* do nothing */ + break; + + case 0x5A: /* AND */ + DO_AND + break; + + case 0x5B: /* OR */ + DO_OR + break; + + case 0x5C: /* NOT */ + DO_NOT + break; + + case 0x5D: /* DELTAP1 */ + Ins_DELTAP( EXEC_ARG_ args ); + break; + + case 0x5E: /* SDB */ + DO_SDB + break; + + case 0x5F: /* SDS */ + DO_SDS + break; + + case 0x60: /* ADD */ + DO_ADD + break; + + case 0x61: /* SUB */ + DO_SUB + break; + + case 0x62: /* DIV */ + DO_DIV + break; + + case 0x63: /* MUL */ + DO_MUL + break; + + case 0x64: /* ABS */ + DO_ABS + break; + + case 0x65: /* NEG */ + DO_NEG + break; + + case 0x66: /* FLOOR */ + DO_FLOOR + break; + + case 0x67: /* CEILING */ + DO_CEILING + break; + + case 0x68: /* ROUND */ + case 0x69: /* ROUND */ + case 0x6A: /* ROUND */ + case 0x6B: /* ROUND */ + DO_ROUND + break; + + case 0x6C: /* NROUND */ + case 0x6D: /* NROUND */ + case 0x6E: /* NRRUND */ + case 0x6F: /* NROUND */ + DO_NROUND + break; + + case 0x70: /* WCVTF */ + DO_WCVTF + break; + + case 0x71: /* DELTAP2 */ + case 0x72: /* DELTAP3 */ + Ins_DELTAP( EXEC_ARG_ args ); + break; + + case 0x73: /* DELTAC0 */ + case 0x74: /* DELTAC1 */ + case 0x75: /* DELTAC2 */ + Ins_DELTAC( EXEC_ARG_ args ); + break; + + case 0x76: /* SROUND */ + DO_SROUND + break; + + case 0x77: /* S45Round */ + DO_S45ROUND + break; + + case 0x78: /* JROT */ + DO_JROT + break; + + case 0x79: /* JROF */ + DO_JROF + break; + + case 0x7A: /* ROFF */ + DO_ROFF + break; + + case 0x7B: /* ???? */ + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + case 0x7C: /* RUTG */ + DO_RUTG + break; + + case 0x7D: /* RDTG */ + DO_RDTG + break; + + case 0x7E: /* SANGW */ + case 0x7F: /* AA */ + /* nothing - obsolete */ + break; + + case 0x80: /* FLIPPT */ + Ins_FLIPPT( EXEC_ARG_ args ); + break; + + case 0x81: /* FLIPRGON */ + Ins_FLIPRGON( EXEC_ARG_ args ); + break; + + case 0x82: /* FLIPRGOFF */ + Ins_FLIPRGOFF( EXEC_ARG_ args ); + break; + + case 0x83: /* UNKNOWN */ + case 0x84: /* UNKNOWN */ + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + case 0x85: /* SCANCTRL */ + Ins_SCANCTRL( EXEC_ARG_ args ); + break; + + case 0x86: /* SDPVTL */ + case 0x87: /* SDPVTL */ + Ins_SDPVTL( EXEC_ARG_ args ); + break; + + case 0x88: /* GETINFO */ + Ins_GETINFO( EXEC_ARG_ args ); + break; + + case 0x89: /* IDEF */ + Ins_IDEF( EXEC_ARG_ args ); + break; + + case 0x8A: /* ROLL */ + Ins_ROLL( EXEC_ARG_ args ); + break; + + case 0x8B: /* MAX */ + DO_MAX + break; + + case 0x8C: /* MIN */ + DO_MIN + break; + + case 0x8D: /* SCANTYPE */ + Ins_SCANTYPE( EXEC_ARG_ args ); + break; + + case 0x8E: /* INSTCTRL */ + Ins_INSTCTRL( EXEC_ARG_ args ); + break; + + case 0x8F: + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + default: + if ( opcode >= 0xE0 ) + Ins_MIRP( EXEC_ARG_ args ); + else if ( opcode >= 0xC0 ) + Ins_MDRP( EXEC_ARG_ args ); + else if ( opcode >= 0xB8 ) + Ins_PUSHW( EXEC_ARG_ args ); + else if ( opcode >= 0xB0 ) + Ins_PUSHB( EXEC_ARG_ args ); + else + Ins_UNKNOWN( EXEC_ARG_ args ); + } + + } + +#else + + Instruct_Dispatch[CUR.opcode]( EXEC_ARG_ &CUR.stack[CUR.args] ); + +#endif /* TT_CONFIG_OPTION_INTERPRETER_SWITCH */ + + if ( CUR.error != TT_Err_Ok ) + { + switch ( CUR.error ) + { + case TT_Err_Invalid_Opcode: /* looking for redefined instructions */ + { + TT_DefRecord* def = CUR.IDefs; + TT_DefRecord* limit = def + CUR.numIDefs; + + + for ( ; def < limit; def++ ) + { + if ( def->active && CUR.opcode == (FT_Byte)def->opc ) + { + TT_CallRec* callrec; + + + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Invalid_Reference; + goto LErrorLabel_; + } + + callrec = &CUR.callStack[CUR.callTop]; + + callrec->Caller_Range = CUR.curRange; + callrec->Caller_IP = CUR.IP + 1; + callrec->Cur_Count = 1; + callrec->Cur_Restart = def->start; + + if ( INS_Goto_CodeRange( def->range, def->start ) == FAILURE ) + goto LErrorLabel_; + + goto LSuiteLabel_; + } + } + } + + CUR.error = TT_Err_Invalid_Opcode; + goto LErrorLabel_; + +#if 0 + break; /* Unreachable code warning suppression. */ + /* Leave to remind in case a later change the editor */ + /* to consider break; */ +#endif + + default: + goto LErrorLabel_; + +#if 0 + break; +#endif + } + } + + CUR.top = CUR.new_top; + + if ( CUR.step_ins ) + CUR.IP += CUR.length; + + /* increment instruction counter and check if we didn't */ + /* run this program for too long (e.g. infinite loops). */ + if ( ++ins_counter > MAX_RUNNABLE_OPCODES ) + return TT_Err_Execution_Too_Long; + + LSuiteLabel_: + if ( CUR.IP >= CUR.codeSize ) + { + if ( CUR.callTop > 0 ) + { + CUR.error = TT_Err_Code_Overflow; + goto LErrorLabel_; + } + else + goto LNo_Error_; + } + } while ( !CUR.instruction_trap ); + + LNo_Error_: + +#ifdef TT_CONFIG_OPTION_STATIC_RASTER + *exc = cur; +#endif + + return TT_Err_Ok; + + LErrorCodeOverflow_: + CUR.error = TT_Err_Code_Overflow; + + LErrorLabel_: + +#ifdef TT_CONFIG_OPTION_STATIC_RASTER + *exc = cur; +#endif + + /* If any errors have occurred, function tables may be broken. */ + /* Force a re-execution of `prep' and `fpgm' tables if no */ + /* bytecode debugger is run. */ + if ( CUR.error && !CUR.instruction_trap ) + { + FT_TRACE1(( " The interpreter returned error 0x%x\n", CUR.error )); + exc->size->cvt_ready = FALSE; + } + + return CUR.error; + } + + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.h new file mode 100644 index 000000000..122642e9f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttinterp.h @@ -0,0 +1,319 @@ +/***************************************************************************/ +/* */ +/* ttinterp.h */ +/* */ +/* TrueType bytecode interpreter (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTINTERP_H__ +#define __TTINTERP_H__ + +#include <freetype/ft2build.h> +#include "ttobjs.h" + + +FT_BEGIN_HEADER + + +#ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */ + +#define EXEC_OP_ TT_ExecContext exc, +#define EXEC_OP TT_ExecContext exc +#define EXEC_ARG_ exc, +#define EXEC_ARG exc + +#else /* static implementation */ + +#define EXEC_OP_ /* void */ +#define EXEC_OP /* void */ +#define EXEC_ARG_ /* void */ +#define EXEC_ARG /* void */ + +#endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */ + + + /*************************************************************************/ + /* */ + /* Rounding mode constants. */ + /* */ +#define TT_Round_Off 5 +#define TT_Round_To_Half_Grid 0 +#define TT_Round_To_Grid 1 +#define TT_Round_To_Double_Grid 2 +#define TT_Round_Up_To_Grid 4 +#define TT_Round_Down_To_Grid 3 +#define TT_Round_Super 6 +#define TT_Round_Super_45 7 + + + /*************************************************************************/ + /* */ + /* Function types used by the interpreter, depending on various modes */ + /* (e.g. the rounding mode, whether to render a vertical or horizontal */ + /* line etc). */ + /* */ + /*************************************************************************/ + + /* Rounding function */ + typedef FT_F26Dot6 + (*TT_Round_Func)( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ); + + /* Point displacement along the freedom vector routine */ + typedef void + (*TT_Move_Func)( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ); + + /* Distance projection along one of the projection vectors */ + typedef FT_F26Dot6 + (*TT_Project_Func)( EXEC_OP_ FT_Pos dx, + FT_Pos dy ); + + /* reading a cvt value. Take care of non-square pixels if necessary */ + typedef FT_F26Dot6 + (*TT_Get_CVT_Func)( EXEC_OP_ FT_ULong idx ); + + /* setting or moving a cvt value. Take care of non-square pixels */ + /* if necessary */ + typedef void + (*TT_Set_CVT_Func)( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ); + + + /*************************************************************************/ + /* */ + /* This structure defines a call record, used to manage function calls. */ + /* */ + typedef struct TT_CallRec_ + { + FT_Int Caller_Range; + FT_Long Caller_IP; + FT_Long Cur_Count; + FT_Long Cur_Restart; + + } TT_CallRec, *TT_CallStack; + + + /*************************************************************************/ + /* */ + /* The main structure for the interpreter which collects all necessary */ + /* variables and states. */ + /* */ + typedef struct TT_ExecContextRec_ + { + TT_Face face; + TT_Size size; + FT_Memory memory; + + /* instructions state */ + + FT_Error error; /* last execution error */ + + FT_Long top; /* top of exec. stack */ + + FT_UInt stackSize; /* size of exec. stack */ + FT_Long* stack; /* current exec. stack */ + + FT_Long args; + FT_UInt new_top; /* new top after exec. */ + + TT_GlyphZoneRec zp0, /* zone records */ + zp1, + zp2, + pts, + twilight; + + FT_Size_Metrics metrics; + TT_Size_Metrics tt_metrics; /* size metrics */ + + TT_GraphicsState GS; /* current graphics state */ + + FT_Int curRange; /* current code range number */ + FT_Byte* code; /* current code range */ + FT_Long IP; /* current instruction pointer */ + FT_Long codeSize; /* size of current range */ + + FT_Byte opcode; /* current opcode */ + FT_Int length; /* length of current opcode */ + + FT_Bool step_ins; /* true if the interpreter must */ + /* increment IP after ins. exec */ + FT_ULong cvtSize; + FT_Long* cvt; + + FT_UInt glyphSize; /* glyph instructions buffer size */ + FT_Byte* glyphIns; /* glyph instructions buffer */ + + FT_UInt numFDefs; /* number of function defs */ + FT_UInt maxFDefs; /* maximum number of function defs */ + TT_DefArray FDefs; /* table of FDefs entries */ + + FT_UInt numIDefs; /* number of instruction defs */ + FT_UInt maxIDefs; /* maximum number of ins defs */ + TT_DefArray IDefs; /* table of IDefs entries */ + + FT_UInt maxFunc; /* maximum function index */ + FT_UInt maxIns; /* maximum instruction index */ + + FT_Int callTop, /* top of call stack during execution */ + callSize; /* size of call stack */ + TT_CallStack callStack; /* call stack */ + + FT_UShort maxPoints; /* capacity of this context's `pts' */ + FT_Short maxContours; /* record, expressed in points and */ + /* contours. */ + + TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */ + /* useful for the debugger */ + + FT_UShort storeSize; /* size of current storage */ + FT_Long* storage; /* storage area */ + + FT_F26Dot6 period; /* values used for the */ + FT_F26Dot6 phase; /* `SuperRounding' */ + FT_F26Dot6 threshold; + +#if 0 + /* this seems to be unused */ + FT_Int cur_ppem; /* ppem along the current proj vector */ +#endif + + FT_Bool instruction_trap; /* If `True', the interpreter will */ + /* exit after each instruction */ + + TT_GraphicsState default_GS; /* graphics state resulting from */ + /* the prep program */ + FT_Bool is_composite; /* true if the glyph is composite */ + FT_Bool pedantic_hinting; /* true if pedantic interpretation */ + + /* latest interpreter additions */ + + FT_Long F_dot_P; /* dot product of freedom and projection */ + /* vectors */ + TT_Round_Func func_round; /* current rounding function */ + + TT_Project_Func func_project, /* current projection function */ + func_dualproj, /* current dual proj. function */ + func_freeProj; /* current freedom proj. func */ + + TT_Move_Func func_move; /* current point move function */ + TT_Move_Func func_move_orig; /* move original position function */ + + TT_Get_CVT_Func func_read_cvt; /* read a cvt entry */ + TT_Set_CVT_Func func_write_cvt; /* write a cvt entry (in pixels) */ + TT_Set_CVT_Func func_move_cvt; /* incr a cvt entry (in pixels) */ + + FT_Bool grayscale; /* are we hinting for grayscale? */ + + } TT_ExecContextRec; + + + extern const TT_GraphicsState tt_default_graphics_state; + + + FT_LOCAL( FT_Error ) + TT_Goto_CodeRange( TT_ExecContext exec, + FT_Int range, + FT_Long IP ); + + FT_LOCAL( FT_Error ) + TT_Set_CodeRange( TT_ExecContext exec, + FT_Int range, + void* base, + FT_Long length ); + + FT_LOCAL( FT_Error ) + TT_Clear_CodeRange( TT_ExecContext exec, + FT_Int range ); + + + FT_LOCAL( FT_Error ) + Update_Max( FT_Memory memory, + FT_ULong* size, + FT_Long multiplier, + void* _pbuff, + FT_ULong new_max ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_New_Context */ + /* */ + /* <Description> */ + /* Queries the face context for a given font. Note that there is */ + /* now a _single_ execution context in the TrueType driver which is */ + /* shared among faces. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Return> */ + /* A handle to the execution context. Initialized for `face'. */ + /* */ + /* <Note> */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_EXPORT( TT_ExecContext ) + TT_New_Context( TT_Driver driver ); + + FT_LOCAL( FT_Error ) + TT_Done_Context( TT_ExecContext exec ); + + FT_LOCAL( FT_Error ) + TT_Load_Context( TT_ExecContext exec, + TT_Face face, + TT_Size size ); + + FT_LOCAL( FT_Error ) + TT_Save_Context( TT_ExecContext exec, + TT_Size ins ); + + FT_LOCAL( FT_Error ) + TT_Run_Context( TT_ExecContext exec, + FT_Bool debug ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_RunIns */ + /* */ + /* <Description> */ + /* Executes one or more instruction in the execution context. This */ + /* is the main function of the TrueType opcode interpreter. */ + /* */ + /* <Input> */ + /* exec :: A handle to the target execution context. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only the object manager and debugger should call this function. */ + /* */ + /* This function is publicly exported because it is directly */ + /* invoked by the TrueType debugger. */ + /* */ + FT_EXPORT( FT_Error ) + TT_RunIns( TT_ExecContext exec ); + + +FT_END_HEADER + +#endif /* __TTINTERP_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.c new file mode 100644 index 000000000..b0f5f1a10 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.c @@ -0,0 +1,1279 @@ +/***************************************************************************/ +/* */ +/* ttobjs.c */ +/* */ +/* Objects manager (body). */ +/* */ +/* Copyright 1996-2011 */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_SFNT_H + +#include "ttgload.h" +#include "ttpload.h" + +#include "tterrors.h" + +#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttinterp.h" +#endif + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#include FT_TRUETYPE_UNPATENTED_H +#endif + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttobjs + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /*************************************************************************/ + /* */ + /* GLYPH ZONE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_glyphzone_done */ + /* */ + /* <Description> */ + /* Deallocate a glyph zone. */ + /* */ + /* <Input> */ + /* zone :: A pointer to the target glyph zone. */ + /* */ + FT_LOCAL_DEF( void ) + tt_glyphzone_done( TT_GlyphZone zone ) + { + FT_Memory memory = zone->memory; + + + if ( memory ) + { + FT_FREE( zone->contours ); + FT_FREE( zone->tags ); + FT_FREE( zone->cur ); + FT_FREE( zone->org ); + FT_FREE( zone->orus ); + + zone->max_points = zone->n_points = 0; + zone->max_contours = zone->n_contours = 0; + zone->memory = NULL; + } + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_glyphzone_new */ + /* */ + /* <Description> */ + /* Allocate a new glyph zone. */ + /* */ + /* <Input> */ + /* memory :: A handle to the current memory object. */ + /* */ + /* maxPoints :: The capacity of glyph zone in points. */ + /* */ + /* maxContours :: The capacity of glyph zone in contours. */ + /* */ + /* <Output> */ + /* zone :: A pointer to the target glyph zone record. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_glyphzone_new( FT_Memory memory, + FT_UShort maxPoints, + FT_Short maxContours, + TT_GlyphZone zone ) + { + FT_Error error; + + + FT_MEM_ZERO( zone, sizeof ( *zone ) ); + zone->memory = memory; + + if ( FT_NEW_ARRAY( zone->org, maxPoints ) || + FT_NEW_ARRAY( zone->cur, maxPoints ) || + FT_NEW_ARRAY( zone->orus, maxPoints ) || + FT_NEW_ARRAY( zone->tags, maxPoints ) || + FT_NEW_ARRAY( zone->contours, maxContours ) ) + { + tt_glyphzone_done( zone ); + } + else + { + zone->max_points = maxPoints; + zone->max_contours = maxContours; + } + + return error; + } +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* Compare the face with a list of well-known `tricky' fonts. */ + /* This list shall be expanded as we find more of them. */ + + static FT_Bool + tt_check_trickyness_family( FT_String* name ) + { + +#define TRICK_NAMES_MAX_CHARACTERS 16 +#define TRICK_NAMES_COUNT 8 + + static const char trick_names[TRICK_NAMES_COUNT] + [TRICK_NAMES_MAX_CHARACTERS + 1] = + { + "DFKaiSho-SB", /* dfkaisb.ttf */ + "DFKaiShu", + "DFKai-SB", /* kaiu.ttf */ + "HuaTianKaiTi?", /* htkt2.ttf */ + "HuaTianSongTi?", /* htst3.ttf */ + "MingLiU", /* mingliu.ttf & mingliu.ttc */ + "PMingLiU", /* mingliu.ttc */ + "MingLi43", /* mingli.ttf */ + }; + + int nn; + + + for ( nn = 0; nn < TRICK_NAMES_COUNT; nn++ ) + if ( ft_strstr( name, trick_names[nn] ) ) + return TRUE; + + return FALSE; + } + + + /* XXX: This function should be in the `sfnt' module. */ + + /* Some PDF generators clear the checksums in the TrueType header table. */ + /* For example, Quartz ContextPDF clears all entries, or Bullzip PDF */ + /* Printer clears the entries for subsetted subtables. We thus have to */ + /* recalculate the checksums where necessary. */ + + static FT_UInt32 + tt_synth_sfnt_checksum( FT_Stream stream, + FT_ULong length ) + { + FT_Error error; + FT_UInt32 checksum = 0; + int i; + + + if ( FT_FRAME_ENTER( length ) ) + return 0; + + for ( ; length > 3; length -= 4 ) + checksum += (FT_UInt32)FT_GET_ULONG(); + + for ( i = 3; length > 0; length --, i-- ) + checksum += (FT_UInt32)( FT_GET_BYTE() << ( i * 8 ) ); + + FT_FRAME_EXIT(); + + return checksum; + } + + + /* XXX: This function should be in the `sfnt' module. */ + + static FT_ULong + tt_get_sfnt_checksum( TT_Face face, + FT_UShort i ) + { +#if 0 /* if we believe the written value, use following part. */ + if ( face->dir_tables[i].CheckSum ) + return face->dir_tables[i].CheckSum; +#endif + + if ( !face->goto_table ) + return 0; + + if ( face->goto_table( face, + face->dir_tables[i].Tag, + face->root.stream, + NULL ) ) + return 0; + + return (FT_ULong)tt_synth_sfnt_checksum( face->root.stream, + face->dir_tables[i].Length ); + } + + + typedef struct tt_sfnt_id_rec_ + { + FT_ULong CheckSum; + FT_ULong Length; + + } tt_sfnt_id_rec; + + + static FT_Bool + tt_check_trickyness_sfnt_ids( TT_Face face ) + { +#define TRICK_SFNT_IDS_PER_FACE 3 +#define TRICK_SFNT_IDS_NUM_FACES 13 + + static const tt_sfnt_id_rec sfnt_id[TRICK_SFNT_IDS_NUM_FACES] + [TRICK_SFNT_IDS_PER_FACE] = { + +#define TRICK_SFNT_ID_cvt 0 +#define TRICK_SFNT_ID_fpgm 1 +#define TRICK_SFNT_ID_prep 2 + + { /* MingLiU 1995 */ + { 0x05bcf058, 0x000002e4 }, /* cvt */ + { 0x28233bf1, 0x000087c4 }, /* fpgm */ + { 0xa344a1ea, 0x000001e1 } /* prep */ + }, + { /* MingLiU 1996- */ + { 0x05bcf058, 0x000002e4 }, /* cvt */ + { 0x28233bf1, 0x000087c4 }, /* fpgm */ + { 0xa344a1eb, 0x000001e1 } /* prep */ + }, + { /* DFKaiShu */ + { 0x11e5ead4, 0x00000350 }, /* cvt */ + { 0x5a30ca3b, 0x00009063 }, /* fpgm */ + { 0x13a42602, 0x0000007e } /* prep */ + }, + { /* HuaTianKaiTi */ + { 0xfffbfffc, 0x00000008 }, /* cvt */ + { 0x9c9e48b8, 0x0000bea2 }, /* fpgm */ + { 0x70020112, 0x00000008 } /* prep */ + }, + { /* HuaTianSongTi */ + { 0xfffbfffc, 0x00000008 }, /* cvt */ + { 0x0a5a0483, 0x00017c39 }, /* fpgm */ + { 0x70020112, 0x00000008 } /* prep */ + }, + { /* NEC fadpop7.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x40c92555, 0x000000e5 }, /* fpgm */ + { 0xa39b58e3, 0x0000117c } /* prep */ + }, + { /* NEC fadrei5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x33c41652, 0x000000e5 }, /* fpgm */ + { 0x26d6c52a, 0x00000f6a } /* prep */ + }, + { /* NEC fangot7.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x6db1651d, 0x0000019d }, /* fpgm */ + { 0x6c6e4b03, 0x00002492 } /* prep */ + }, + { /* NEC fangyo5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x40c92555, 0x000000e5 }, /* fpgm */ + { 0xde51fad0, 0x0000117c } /* prep */ + }, + { /* NEC fankyo5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x85e47664, 0x000000e5 }, /* fpgm */ + { 0xa6c62831, 0x00001caa } /* prep */ + }, + { /* NEC fanrgo5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x2d891cfd, 0x0000019d }, /* fpgm */ + { 0xa0604633, 0x00001de8 } /* prep */ + }, + { /* NEC fangot5.ttc */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x40aa774c, 0x000001cb }, /* fpgm */ + { 0x9b5caa96, 0x00001f9a } /* prep */ + }, + { /* NEC fanmin3.ttc */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x0d3de9cb, 0x00000141 }, /* fpgm */ + { 0xd4127766, 0x00002280 } /* prep */ + } + }; + + FT_ULong checksum; + int num_matched_ids[TRICK_SFNT_IDS_NUM_FACES]; + FT_Bool has_cvt, has_fpgm, has_prep; + FT_UShort i; + int j, k; + + + FT_MEM_SET( num_matched_ids, 0, + sizeof( int ) * TRICK_SFNT_IDS_NUM_FACES ); + has_cvt = FALSE; + has_fpgm = FALSE; + has_prep = FALSE; + + for ( i = 0; i < face->num_tables; i++ ) + { + checksum = 0; + + switch( face->dir_tables[i].Tag ) + { + case TTAG_cvt: + k = TRICK_SFNT_ID_cvt; + has_cvt = TRUE; + break; + + case TTAG_fpgm: + k = TRICK_SFNT_ID_fpgm; + has_fpgm = TRUE; + break; + + case TTAG_prep: + k = TRICK_SFNT_ID_prep; + has_prep = TRUE; + break; + + default: + continue; + } + + for ( j = 0; j < TRICK_SFNT_IDS_NUM_FACES; j++ ) + if ( face->dir_tables[i].Length == sfnt_id[j][k].Length ) + { + if ( !checksum ) + checksum = tt_get_sfnt_checksum( face, i ); + + if ( sfnt_id[j][k].CheckSum == checksum ) + num_matched_ids[j]++; + + if ( num_matched_ids[j] == TRICK_SFNT_IDS_PER_FACE ) + return TRUE; + } + } + + for ( j = 0; j < TRICK_SFNT_IDS_NUM_FACES; j++ ) + { + if ( !has_cvt && !sfnt_id[j][TRICK_SFNT_ID_cvt].Length ) + num_matched_ids[j] ++; + if ( !has_fpgm && !sfnt_id[j][TRICK_SFNT_ID_fpgm].Length ) + num_matched_ids[j] ++; + if ( !has_prep && !sfnt_id[j][TRICK_SFNT_ID_prep].Length ) + num_matched_ids[j] ++; + if ( num_matched_ids[j] == TRICK_SFNT_IDS_PER_FACE ) + return TRUE; + } + + return FALSE; + } + + + static FT_Bool + tt_check_trickyness( FT_Face face ) + { + if ( !face ) + return FALSE; + + /* For first, check the face name for quick check. */ + if ( face->family_name && + tt_check_trickyness_family( face->family_name ) ) + return TRUE; + + /* Type42 fonts may lack `name' tables, we thus try to identify */ + /* tricky fonts by checking the checksums of Type42-persistent */ + /* sfnt tables (`cvt', `fpgm', and `prep'). */ + if ( tt_check_trickyness_sfnt_ids( (TT_Face)face ) ) + return TRUE; + + return FALSE; + } + + + /* Check whether `.notdef' is the only glyph in the `loca' table. */ + static FT_Bool + tt_check_single_notdef( FT_Face ttface ) + { + FT_Bool result = FALSE; + + TT_Face face = (TT_Face)ttface; + FT_UInt asize; + FT_ULong i; + FT_ULong glyph_index = 0; + FT_UInt count = 0; + + + for( i = 0; i < face->num_locations; i++ ) + { + tt_face_get_location( face, i, &asize ); + if ( asize > 0 ) + { + count += 1; + if ( count > 1 ) + break; + glyph_index = i; + } + } + + /* Only have a single outline. */ + if ( count == 1 ) + { + if ( glyph_index == 0 ) + result = TRUE; + else + { + /* FIXME: Need to test glyphname == .notdef ? */ + FT_Error error; + char buf[8]; + + + error = FT_Get_Glyph_Name( ttface, glyph_index, buf, 8 ); + if ( !error && + buf[0] == '.' && !ft_strncmp( buf, ".notdef", 8 ) ) + result = TRUE; + } + } + + return result; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_init */ + /* */ + /* <Description> */ + /* Initialize a given TrueType face object. */ + /* */ + /* <Input> */ + /* stream :: The source font stream. */ + /* */ + /* face_index :: The index of the font face in the resource. */ + /* */ + /* num_params :: Number of additional generic parameters. Ignored. */ + /* */ + /* params :: Additional generic parameters. Ignored. */ + /* */ + /* <InOut> */ + /* face :: The newly built face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_init( FT_Stream stream, + FT_Face ttface, /* TT_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Library library; + SFNT_Service sfnt; + TT_Face face = (TT_Face)ttface; + + + library = ttface->driver->root.library; + sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" ); + if ( !sfnt ) + goto Bad_Format; + + /* create input stream from resource */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + /* check that we have a valid TrueType file */ + error = sfnt->init_face( stream, face, face_index, num_params, params ); + if ( error ) + goto Exit; + + /* We must also be able to accept Mac/GX fonts, as well as OT ones. */ + /* The 0x00020000 tag is completely undocumented; some fonts from */ + /* Arphic made for Chinese Windows 3.1 have this. */ + if ( face->format_tag != 0x00010000L && /* MS fonts */ + face->format_tag != 0x00020000L && /* CJK fonts for Win 3.1 */ + face->format_tag != TTAG_true ) /* Mac fonts */ + { + FT_TRACE2(( "[not a valid TTF font]\n" )); + goto Bad_Format; + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + ttface->face_flags |= FT_FACE_FLAG_HINTER; +#endif + + /* If we are performing a simple font format check, exit immediately. */ + if ( face_index < 0 ) + return TT_Err_Ok; + + /* Load font directory */ + error = sfnt->load_face( stream, face, face_index, num_params, params ); + if ( error ) + goto Exit; + + if ( tt_check_trickyness( ttface ) ) + ttface->face_flags |= FT_FACE_FLAG_TRICKY; + + error = tt_face_load_hdmx( face, stream ); + if ( error ) + goto Exit; + + if ( FT_IS_SCALABLE( ttface ) ) + { + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( !ttface->internal->incremental_interface ) + error = tt_face_load_loca( face, stream ); + if ( !error ) + error = tt_face_load_cvt( face, stream ); + if ( !error ) + error = tt_face_load_fpgm( face, stream ); + if ( !error ) + error = tt_face_load_prep( face, stream ); + + /* Check the scalable flag based on `loca'. */ + if ( !ttface->internal->incremental_interface && + ttface->num_fixed_sizes && + face->glyph_locations && + tt_check_single_notdef( ttface ) ) + { + FT_TRACE5(( "tt_face_init:" + " Only the `.notdef' glyph has an outline.\n" + " " + " Resetting scalable flag to FALSE.\n" )); + + ttface->face_flags &= ~FT_FACE_FLAG_SCALABLE; + } + +#else + + if ( !error ) + error = tt_face_load_loca( face, stream ); + if ( !error ) + error = tt_face_load_cvt( face, stream ); + if ( !error ) + error = tt_face_load_fpgm( face, stream ); + if ( !error ) + error = tt_face_load_prep( face, stream ); + + /* Check the scalable flag based on `loca'. */ + if ( ttface->num_fixed_sizes && + face->glyph_locations && + tt_check_single_notdef( ttface ) ) + { + FT_TRACE5(( "tt_face_init:" + " Only the `.notdef' glyph has an outline.\n" + " " + " Resetting scalable flag to FALSE.\n" )); + + ttface->face_flags &= ~FT_FACE_FLAG_SCALABLE; + } + +#endif + + } + +#if defined( TT_CONFIG_OPTION_UNPATENTED_HINTING ) && \ + !defined( TT_CONFIG_OPTION_BYTECODE_INTERPRETER ) + + { + FT_Bool unpatented_hinting; + int i; + + + /* Determine whether unpatented hinting is to be used for this face. */ + unpatented_hinting = FT_BOOL + ( library->debug_hooks[FT_DEBUG_HOOK_UNPATENTED_HINTING] != NULL ); + + for ( i = 0; i < num_params && !face->unpatented_hinting; i++ ) + if ( params[i].tag == FT_PARAM_TAG_UNPATENTED_HINTING ) + unpatented_hinting = TRUE; + + if ( !unpatented_hinting ) + ttface->internal->ignore_unpatented_hinter = TRUE; + } + +#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING && + !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + + /* initialize standard glyph loading routines */ + TT_Init_Glyph_Loading( face ); + + Exit: + return error; + + Bad_Format: + error = TT_Err_Unknown_File_Format; + goto Exit; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_done */ + /* */ + /* <Description> */ + /* Finalize a given face object. */ + /* */ + /* <Input> */ + /* face :: A pointer to the face object to destroy. */ + /* */ + FT_LOCAL_DEF( void ) + tt_face_done( FT_Face ttface ) /* TT_Face */ + { + TT_Face face = (TT_Face)ttface; + FT_Memory memory; + FT_Stream stream; + SFNT_Service sfnt; + + + if ( !face ) + return; + + memory = ttface->memory; + stream = ttface->stream; + sfnt = (SFNT_Service)face->sfnt; + + /* for `extended TrueType formats' (i.e. compressed versions) */ + if ( face->extra.finalizer ) + face->extra.finalizer( face->extra.data ); + + if ( sfnt ) + sfnt->done_face( face ); + + /* freeing the locations table */ + tt_face_done_loca( face ); + + tt_face_free_hdmx( face ); + + /* freeing the CVT */ + FT_FREE( face->cvt ); + face->cvt_size = 0; + + /* freeing the programs */ + FT_FRAME_RELEASE( face->font_program ); + FT_FRAME_RELEASE( face->cvt_program ); + face->font_program_size = 0; + face->cvt_program_size = 0; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + tt_done_blend( memory, face->blend ); + face->blend = NULL; +#endif + } + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /*************************************************************************/ + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_size_run_fpgm */ + /* */ + /* <Description> */ + /* Run the font program. */ + /* */ + /* <Input> */ + /* size :: A handle to the size object. */ + /* */ + /* pedantic :: Set if bytecode execution should be pedantic. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_run_fpgm( TT_Size size, + FT_Bool pedantic ) + { + TT_Face face = (TT_Face)size->root.face; + TT_ExecContext exec; + FT_Error error; + + + /* debugging instances have their own context */ + if ( size->debug ) + exec = size->context; + else + exec = ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; + + if ( !exec ) + return TT_Err_Could_Not_Find_Context; + + TT_Load_Context( exec, face, size ); + + exec->callTop = 0; + exec->top = 0; + + exec->period = 64; + exec->phase = 0; + exec->threshold = 0; + + exec->instruction_trap = FALSE; + exec->F_dot_P = 0x10000L; + + exec->pedantic_hinting = pedantic; + + { + FT_Size_Metrics* metrics = &exec->metrics; + TT_Size_Metrics* tt_metrics = &exec->tt_metrics; + + + metrics->x_ppem = 0; + metrics->y_ppem = 0; + metrics->x_scale = 0; + metrics->y_scale = 0; + + tt_metrics->ppem = 0; + tt_metrics->scale = 0; + tt_metrics->ratio = 0x10000L; + } + + /* allow font program execution */ + TT_Set_CodeRange( exec, + tt_coderange_font, + face->font_program, + face->font_program_size ); + + /* disable CVT and glyph programs coderange */ + TT_Clear_CodeRange( exec, tt_coderange_cvt ); + TT_Clear_CodeRange( exec, tt_coderange_glyph ); + + if ( face->font_program_size > 0 ) + { + error = TT_Goto_CodeRange( exec, tt_coderange_font, 0 ); + + if ( !error ) + { + FT_TRACE4(( "Executing `fpgm' table.\n" )); + + error = face->interpreter( exec ); + } + } + else + error = TT_Err_Ok; + + if ( !error ) + TT_Save_Context( exec, size ); + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_size_run_prep */ + /* */ + /* <Description> */ + /* Run the control value program. */ + /* */ + /* <Input> */ + /* size :: A handle to the size object. */ + /* */ + /* pedantic :: Set if bytecode execution should be pedantic. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_run_prep( TT_Size size, + FT_Bool pedantic ) + { + TT_Face face = (TT_Face)size->root.face; + TT_ExecContext exec; + FT_Error error; + + + /* debugging instances have their own context */ + if ( size->debug ) + exec = size->context; + else + exec = ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; + + if ( !exec ) + return TT_Err_Could_Not_Find_Context; + + TT_Load_Context( exec, face, size ); + + exec->callTop = 0; + exec->top = 0; + + exec->instruction_trap = FALSE; + + exec->pedantic_hinting = pedantic; + + TT_Set_CodeRange( exec, + tt_coderange_cvt, + face->cvt_program, + face->cvt_program_size ); + + TT_Clear_CodeRange( exec, tt_coderange_glyph ); + + if ( face->cvt_program_size > 0 ) + { + error = TT_Goto_CodeRange( exec, tt_coderange_cvt, 0 ); + + if ( !error && !size->debug ) + { + FT_TRACE4(( "Executing `prep' table.\n" )); + + error = face->interpreter( exec ); + } + } + else + error = TT_Err_Ok; + + /* save as default graphics state */ + size->GS = exec->GS; + + TT_Save_Context( exec, size ); + + return error; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + static void + tt_size_done_bytecode( FT_Size ftsize ) + { + TT_Size size = (TT_Size)ftsize; + TT_Face face = (TT_Face)ftsize->face; + FT_Memory memory = face->root.memory; + + + if ( size->debug ) + { + /* the debug context must be deleted by the debugger itself */ + size->context = NULL; + size->debug = FALSE; + } + + FT_FREE( size->cvt ); + size->cvt_size = 0; + + /* free storage area */ + FT_FREE( size->storage ); + size->storage_size = 0; + + /* twilight zone */ + tt_glyphzone_done( &size->twilight ); + + FT_FREE( size->function_defs ); + FT_FREE( size->instruction_defs ); + + size->num_function_defs = 0; + size->max_function_defs = 0; + size->num_instruction_defs = 0; + size->max_instruction_defs = 0; + + size->max_func = 0; + size->max_ins = 0; + + size->bytecode_ready = 0; + size->cvt_ready = 0; + } + + + /* Initialize bytecode-related fields in the size object. */ + /* We do this only if bytecode interpretation is really needed. */ + static FT_Error + tt_size_init_bytecode( FT_Size ftsize, + FT_Bool pedantic ) + { + FT_Error error; + TT_Size size = (TT_Size)ftsize; + TT_Face face = (TT_Face)ftsize->face; + FT_Memory memory = face->root.memory; + FT_Int i; + + FT_UShort n_twilight; + TT_MaxProfile* maxp = &face->max_profile; + + + size->bytecode_ready = 1; + size->cvt_ready = 0; + + size->max_function_defs = maxp->maxFunctionDefs; + size->max_instruction_defs = maxp->maxInstructionDefs; + + size->num_function_defs = 0; + size->num_instruction_defs = 0; + + size->max_func = 0; + size->max_ins = 0; + + size->cvt_size = face->cvt_size; + size->storage_size = maxp->maxStorage; + + /* Set default metrics */ + { + TT_Size_Metrics* metrics = &size->ttmetrics; + + + metrics->rotated = FALSE; + metrics->stretched = FALSE; + + /* set default compensation (all 0) */ + for ( i = 0; i < 4; i++ ) + metrics->compensations[i] = 0; + } + + /* allocate function defs, instruction defs, cvt, and storage area */ + if ( FT_NEW_ARRAY( size->function_defs, size->max_function_defs ) || + FT_NEW_ARRAY( size->instruction_defs, size->max_instruction_defs ) || + FT_NEW_ARRAY( size->cvt, size->cvt_size ) || + FT_NEW_ARRAY( size->storage, size->storage_size ) ) + goto Exit; + + /* reserve twilight zone */ + n_twilight = maxp->maxTwilightPoints; + + /* there are 4 phantom points (do we need this?) */ + n_twilight += 4; + + error = tt_glyphzone_new( memory, n_twilight, 0, &size->twilight ); + if ( error ) + goto Exit; + + size->twilight.n_points = n_twilight; + + size->GS = tt_default_graphics_state; + + /* set `face->interpreter' according to the debug hook present */ + { + FT_Library library = face->root.driver->root.library; + + + face->interpreter = (TT_Interpreter) + library->debug_hooks[FT_DEBUG_HOOK_TRUETYPE]; + if ( !face->interpreter ) + face->interpreter = (TT_Interpreter)TT_RunIns; + } + + /* Fine, now run the font program! */ + error = tt_size_run_fpgm( size, pedantic ); + + Exit: + if ( error ) + tt_size_done_bytecode( ftsize ); + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_size_ready_bytecode( TT_Size size, + FT_Bool pedantic ) + { + FT_Error error = TT_Err_Ok; + + + if ( !size->bytecode_ready ) + { + error = tt_size_init_bytecode( (FT_Size)size, pedantic ); + if ( error ) + goto Exit; + } + + /* rescale CVT when needed */ + if ( !size->cvt_ready ) + { + FT_UInt i; + TT_Face face = (TT_Face)size->root.face; + + + /* Scale the cvt values to the new ppem. */ + /* We use by default the y ppem to scale the CVT. */ + for ( i = 0; i < size->cvt_size; i++ ) + size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale ); + + /* all twilight points are originally zero */ + for ( i = 0; i < (FT_UInt)size->twilight.n_points; i++ ) + { + size->twilight.org[i].x = 0; + size->twilight.org[i].y = 0; + size->twilight.cur[i].x = 0; + size->twilight.cur[i].y = 0; + } + + /* clear storage area */ + for ( i = 0; i < (FT_UInt)size->storage_size; i++ ) + size->storage[i] = 0; + + size->GS = tt_default_graphics_state; + + error = tt_size_run_prep( size, pedantic ); + if ( !error ) + size->cvt_ready = 1; + } + + Exit: + return error; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_size_init */ + /* */ + /* <Description> */ + /* Initialize a new TrueType size object. */ + /* */ + /* <InOut> */ + /* size :: A handle to the size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_init( FT_Size ttsize ) /* TT_Size */ + { + TT_Size size = (TT_Size)ttsize; + FT_Error error = TT_Err_Ok; + +#ifdef TT_USE_BYTECODE_INTERPRETER + size->bytecode_ready = 0; + size->cvt_ready = 0; +#endif + + size->ttmetrics.valid = FALSE; + size->strike_index = 0xFFFFFFFFUL; + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_size_done */ + /* */ + /* <Description> */ + /* The TrueType size object finalizer. */ + /* */ + /* <Input> */ + /* size :: A handle to the target size object. */ + /* */ + FT_LOCAL_DEF( void ) + tt_size_done( FT_Size ttsize ) /* TT_Size */ + { + TT_Size size = (TT_Size)ttsize; + + +#ifdef TT_USE_BYTECODE_INTERPRETER + if ( size->bytecode_ready ) + tt_size_done_bytecode( ttsize ); +#endif + + size->ttmetrics.valid = FALSE; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_size_reset */ + /* */ + /* <Description> */ + /* Reset a TrueType size when resolutions and character dimensions */ + /* have been changed. */ + /* */ + /* <Input> */ + /* size :: A handle to the target size object. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_reset( TT_Size size ) + { + TT_Face face; + FT_Error error = TT_Err_Ok; + FT_Size_Metrics* metrics; + + + size->ttmetrics.valid = FALSE; + + face = (TT_Face)size->root.face; + + metrics = &size->metrics; + + /* copy the result from base layer */ + *metrics = size->root.metrics; + + if ( metrics->x_ppem < 1 || metrics->y_ppem < 1 ) + return TT_Err_Invalid_PPem; + + /* This bit flag, if set, indicates that the ppems must be */ + /* rounded to integers. Nearly all TrueType fonts have this bit */ + /* set, as hinting won't work really well otherwise. */ + /* */ + if ( face->header.Flags & 8 ) + { + metrics->x_scale = FT_DivFix( metrics->x_ppem << 6, + face->root.units_per_EM ); + metrics->y_scale = FT_DivFix( metrics->y_ppem << 6, + face->root.units_per_EM ); + + metrics->ascender = + FT_PIX_ROUND( FT_MulFix( face->root.ascender, metrics->y_scale ) ); + metrics->descender = + FT_PIX_ROUND( FT_MulFix( face->root.descender, metrics->y_scale ) ); + metrics->height = + FT_PIX_ROUND( FT_MulFix( face->root.height, metrics->y_scale ) ); + metrics->max_advance = + FT_PIX_ROUND( FT_MulFix( face->root.max_advance_width, + metrics->x_scale ) ); + } + + /* compute new transformation */ + if ( metrics->x_ppem >= metrics->y_ppem ) + { + size->ttmetrics.scale = metrics->x_scale; + size->ttmetrics.ppem = metrics->x_ppem; + size->ttmetrics.x_ratio = 0x10000L; + size->ttmetrics.y_ratio = FT_MulDiv( metrics->y_ppem, + 0x10000L, + metrics->x_ppem ); + } + else + { + size->ttmetrics.scale = metrics->y_scale; + size->ttmetrics.ppem = metrics->y_ppem; + size->ttmetrics.x_ratio = FT_MulDiv( metrics->x_ppem, + 0x10000L, + metrics->y_ppem ); + size->ttmetrics.y_ratio = 0x10000L; + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + size->cvt_ready = 0; +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + if ( !error ) + size->ttmetrics.valid = TRUE; + + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_driver_init */ + /* */ + /* <Description> */ + /* Initialize a given TrueType driver object. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target driver object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_driver_init( FT_Module ttdriver ) /* TT_Driver */ + { + +#ifdef TT_USE_BYTECODE_INTERPRETER + + TT_Driver driver = (TT_Driver)ttdriver; + + + if ( !TT_New_Context( driver ) ) + return TT_Err_Could_Not_Find_Context; + +#else + + FT_UNUSED( ttdriver ); + +#endif + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_driver_done */ + /* */ + /* <Description> */ + /* Finalize a given TrueType driver. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target TrueType driver. */ + /* */ + FT_LOCAL_DEF( void ) + tt_driver_done( FT_Module ttdriver ) /* TT_Driver */ + { +#ifdef TT_USE_BYTECODE_INTERPRETER + TT_Driver driver = (TT_Driver)ttdriver; + + + /* destroy the execution context */ + if ( driver->context ) + { + TT_Done_Context( driver->context ); + driver->context = NULL; + } +#else + FT_UNUSED( ttdriver ); +#endif + + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_slot_init */ + /* */ + /* <Description> */ + /* Initialize a new slot object. */ + /* */ + /* <InOut> */ + /* slot :: A handle to the slot object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_slot_init( FT_GlyphSlot slot ) + { + return FT_GlyphLoader_CreateExtra( slot->internal->loader ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.h new file mode 100644 index 000000000..2218caaf5 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttobjs.h @@ -0,0 +1,434 @@ +/***************************************************************************/ +/* */ +/* ttobjs.h */ +/* */ +/* Objects manager (specification). */ +/* */ +/* Copyright 1996-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTOBJS_H__ +#define __TTOBJS_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_Driver */ + /* */ + /* <Description> */ + /* A handle to a TrueType driver object. */ + /* */ + typedef struct TT_DriverRec_* TT_Driver; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_Instance */ + /* */ + /* <Description> */ + /* A handle to a TrueType size object. */ + /* */ + typedef struct TT_SizeRec_* TT_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to a TrueType glyph slot object. */ + /* */ + /* <Note> */ + /* This is a direct typedef of FT_GlyphSlot, as there is nothing */ + /* specific about the TrueType glyph slot. */ + /* */ + typedef FT_GlyphSlot TT_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GraphicsState */ + /* */ + /* <Description> */ + /* The TrueType graphics state used during bytecode interpretation. */ + /* */ + typedef struct TT_GraphicsState_ + { + FT_UShort rp0; + FT_UShort rp1; + FT_UShort rp2; + + FT_UnitVector dualVector; + FT_UnitVector projVector; + FT_UnitVector freeVector; + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_Bool both_x_axis; +#endif + + FT_Long loop; + FT_F26Dot6 minimum_distance; + FT_Int round_state; + + FT_Bool auto_flip; + FT_F26Dot6 control_value_cutin; + FT_F26Dot6 single_width_cutin; + FT_F26Dot6 single_width_value; + FT_Short delta_base; + FT_Short delta_shift; + + FT_Byte instruct_control; + /* According to Greg Hitchcock from Microsoft, the `scan_control' */ + /* variable as documented in the TrueType specification is a 32-bit */ + /* integer; the high-word part holds the SCANTYPE value, the low-word */ + /* part the SCANCTRL value. We separate it into two fields. */ + FT_Bool scan_control; + FT_Int scan_type; + + FT_UShort gep0; + FT_UShort gep1; + FT_UShort gep2; + + } TT_GraphicsState; + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_LOCAL( void ) + tt_glyphzone_done( TT_GlyphZone zone ); + + FT_LOCAL( FT_Error ) + tt_glyphzone_new( FT_Memory memory, + FT_UShort maxPoints, + FT_Short maxContours, + TT_GlyphZone zone ); + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + + /*************************************************************************/ + /* */ + /* EXECUTION SUBTABLES */ + /* */ + /* These sub-tables relate to instruction execution. */ + /* */ + /*************************************************************************/ + + +#define TT_MAX_CODE_RANGES 3 + + + /*************************************************************************/ + /* */ + /* There can only be 3 active code ranges at once: */ + /* - the Font Program */ + /* - the CVT Program */ + /* - a glyph's instructions set */ + /* */ + typedef enum TT_CodeRange_Tag_ + { + tt_coderange_none = 0, + tt_coderange_font, + tt_coderange_cvt, + tt_coderange_glyph + + } TT_CodeRange_Tag; + + + typedef struct TT_CodeRange_ + { + FT_Byte* base; + FT_ULong size; + + } TT_CodeRange; + + typedef TT_CodeRange TT_CodeRangeTable[TT_MAX_CODE_RANGES]; + + + /*************************************************************************/ + /* */ + /* Defines a function/instruction definition record. */ + /* */ + typedef struct TT_DefRecord_ + { + FT_Int range; /* in which code range is it located? */ + FT_Long start; /* where does it start? */ + FT_UInt opc; /* function #, or instruction code */ + FT_Bool active; /* is it active? */ + + } TT_DefRecord, *TT_DefArray; + + + /*************************************************************************/ + /* */ + /* Subglyph transformation record. */ + /* */ + typedef struct TT_Transform_ + { + FT_Fixed xx, xy; /* transformation matrix coefficients */ + FT_Fixed yx, yy; + FT_F26Dot6 ox, oy; /* offsets */ + + } TT_Transform; + + + /*************************************************************************/ + /* */ + /* A note regarding non-squared pixels: */ + /* */ + /* (This text will probably go into some docs at some time; for now, it */ + /* is kept here to explain some definitions in the TT_Size_Metrics */ + /* record). */ + /* */ + /* The CVT is a one-dimensional array containing values that control */ + /* certain important characteristics in a font, like the height of all */ + /* capitals, all lowercase letter, default spacing or stem width/height. */ + /* */ + /* These values are found in FUnits in the font file, and must be scaled */ + /* to pixel coordinates before being used by the CVT and glyph programs. */ + /* Unfortunately, when using distinct x and y resolutions (or distinct x */ + /* and y pointsizes), there are two possible scalings. */ + /* */ + /* A first try was to implement a `lazy' scheme where all values were */ + /* scaled when first used. However, while some values are always used */ + /* in the same direction, some others are used under many different */ + /* circumstances and orientations. */ + /* */ + /* I have found a simpler way to do the same, and it even seems to work */ + /* in most of the cases: */ + /* */ + /* - All CVT values are scaled to the maximum ppem size. */ + /* */ + /* - When performing a read or write in the CVT, a ratio factor is used */ + /* to perform adequate scaling. Example: */ + /* */ + /* x_ppem = 14 */ + /* y_ppem = 10 */ + /* */ + /* We choose ppem = x_ppem = 14 as the CVT scaling size. All cvt */ + /* entries are scaled to it. */ + /* */ + /* x_ratio = 1.0 */ + /* y_ratio = y_ppem/ppem (< 1.0) */ + /* */ + /* We compute the current ratio like: */ + /* */ + /* - If projVector is horizontal, */ + /* ratio = x_ratio = 1.0 */ + /* */ + /* - if projVector is vertical, */ + /* ratio = y_ratio */ + /* */ + /* - else, */ + /* ratio = sqrt( (proj.x * x_ratio) ^ 2 + (proj.y * y_ratio) ^ 2 ) */ + /* */ + /* Reading a cvt value returns */ + /* ratio * cvt[index] */ + /* */ + /* Writing a cvt value in pixels: */ + /* cvt[index] / ratio */ + /* */ + /* The current ppem is simply */ + /* ratio * ppem */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Metrics used by the TrueType size and context objects. */ + /* */ + typedef struct TT_Size_Metrics_ + { + /* for non-square pixels */ + FT_Long x_ratio; + FT_Long y_ratio; + + FT_UShort ppem; /* maximum ppem size */ + FT_Long ratio; /* current ratio */ + FT_Fixed scale; + + FT_F26Dot6 compensations[4]; /* device-specific compensations */ + + FT_Bool valid; + + FT_Bool rotated; /* `is the glyph rotated?'-flag */ + FT_Bool stretched; /* `is the glyph stretched?'-flag */ + + } TT_Size_Metrics; + + + /*************************************************************************/ + /* */ + /* TrueType size class. */ + /* */ + typedef struct TT_SizeRec_ + { + FT_SizeRec root; + + /* we have our own copy of metrics so that we can modify */ + /* it without affecting auto-hinting (when used) */ + FT_Size_Metrics metrics; + + TT_Size_Metrics ttmetrics; + + FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */ + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_UInt num_function_defs; /* number of function definitions */ + FT_UInt max_function_defs; + TT_DefArray function_defs; /* table of function definitions */ + + FT_UInt num_instruction_defs; /* number of ins. definitions */ + FT_UInt max_instruction_defs; + TT_DefArray instruction_defs; /* table of ins. definitions */ + + FT_UInt max_func; + FT_UInt max_ins; + + TT_CodeRangeTable codeRangeTable; + + TT_GraphicsState GS; + + FT_ULong cvt_size; /* the scaled control value table */ + FT_Long* cvt; + + FT_UShort storage_size; /* The storage area is now part of */ + FT_Long* storage; /* the instance */ + + TT_GlyphZoneRec twilight; /* The instance's twilight zone */ + + /* debugging variables */ + + /* When using the debugger, we must keep the */ + /* execution context tied to the instance */ + /* object rather than asking it on demand. */ + + FT_Bool debug; + TT_ExecContext context; + + FT_Bool bytecode_ready; + FT_Bool cvt_ready; + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + } TT_SizeRec; + + + /*************************************************************************/ + /* */ + /* TrueType driver class. */ + /* */ + typedef struct TT_DriverRec_ + { + FT_DriverRec root; + TT_ExecContext context; /* execution context */ + TT_GlyphZoneRec zone; /* glyph loader points zone */ + + void* extension_component; + + } TT_DriverRec; + + + /* Note: All of the functions below (except tt_size_reset()) are used */ + /* as function pointers in a FT_Driver_ClassRec. Therefore their */ + /* parameters are of types FT_Face, FT_Size, etc., rather than TT_Face, */ + /* TT_Size, etc., so that the compiler can confirm that the types and */ + /* number of parameters are correct. In all cases the FT_xxx types are */ + /* cast to their TT_xxx counterparts inside the functions since FreeType */ + /* will always use the TT driver to create them. */ + + + /*************************************************************************/ + /* */ + /* Face functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_face_init( FT_Stream stream, + FT_Face ttface, /* TT_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + tt_face_done( FT_Face ttface ); /* TT_Face */ + + + /*************************************************************************/ + /* */ + /* Size functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_size_init( FT_Size ttsize ); /* TT_Size */ + + FT_LOCAL( void ) + tt_size_done( FT_Size ttsize ); /* TT_Size */ + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_LOCAL( FT_Error ) + tt_size_run_fpgm( TT_Size size, + FT_Bool pedantic ); + + FT_LOCAL( FT_Error ) + tt_size_run_prep( TT_Size size, + FT_Bool pedantic ); + + FT_LOCAL( FT_Error ) + tt_size_ready_bytecode( TT_Size size, + FT_Bool pedantic ); + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + FT_LOCAL( FT_Error ) + tt_size_reset( TT_Size size ); + + + /*************************************************************************/ + /* */ + /* Driver functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_driver_init( FT_Module ttdriver ); /* TT_Driver */ + + FT_LOCAL( void ) + tt_driver_done( FT_Module ttdriver ); /* TT_Driver */ + + + /*************************************************************************/ + /* */ + /* Slot functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_slot_init( FT_GlyphSlot slot ); + + +FT_END_HEADER + +#endif /* __TTOBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttpic.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttpic.c new file mode 100644 index 000000000..e0fd21ce7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttpic.c @@ -0,0 +1,81 @@ +/***************************************************************************/ +/* */ +/* ttpic.c */ +/* */ +/* The FreeType position independent code services for truetype module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "ttpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ttdriver.c */ + FT_Error FT_Create_Class_tt_services( FT_Library, FT_ServiceDescRec**); + void FT_Destroy_Class_tt_services( FT_Library, FT_ServiceDescRec*); + void FT_Init_Class_tt_service_gx_multi_masters(FT_Service_MultiMastersRec*); + void FT_Init_Class_tt_service_truetype_glyf(FT_Service_TTGlyfRec*); + + void + tt_driver_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->truetype ) + { + TTModulePIC* container = (TTModulePIC*)pic_container->truetype; + if(container->tt_services) + FT_Destroy_Class_tt_services(library, container->tt_services); + container->tt_services = NULL; + FT_FREE( container ); + pic_container->truetype = NULL; + } + } + + + FT_Error + tt_driver_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = TT_Err_Ok; + TTModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof(*container) ); + pic_container->truetype = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_tt_services(library, &container->tt_services); + if(error) + goto Exit; +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Init_Class_tt_service_gx_multi_masters(&container->tt_service_gx_multi_masters); +#endif + FT_Init_Class_tt_service_truetype_glyf(&container->tt_service_truetype_glyf); +Exit: + if(error) + tt_driver_class_pic_free(library); + return error; + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttpic.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttpic.h new file mode 100644 index 000000000..84de0fee9 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttpic.h @@ -0,0 +1,59 @@ +/***************************************************************************/ +/* */ +/* ttpic.h */ +/* */ +/* The FreeType position independent code services for truetype module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTPIC_H__ +#define __TTPIC_H__ + + +FT_BEGIN_HEADER + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_TT_SERVICES_GET tt_services +#define FT_TT_SERVICE_GX_MULTI_MASTERS_GET tt_service_gx_multi_masters +#define FT_TT_SERVICE_TRUETYPE_GLYF_GET tt_service_truetype_glyf + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_MULTIPLE_MASTERS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H +#include FT_SERVICE_TRUETYPE_GLYF_H + + typedef struct TTModulePIC_ + { + FT_ServiceDescRec* tt_services; +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Service_MultiMastersRec tt_service_gx_multi_masters; +#endif + FT_Service_TTGlyfRec tt_service_truetype_glyf; + } TTModulePIC; + +#define GET_PIC(lib) ((TTModulePIC*)((lib)->pic_container.truetype)) +#define FT_TT_SERVICES_GET (GET_PIC(library)->tt_services) +#define FT_TT_SERVICE_GX_MULTI_MASTERS_GET (GET_PIC(library)->tt_service_gx_multi_masters) +#define FT_TT_SERVICE_TRUETYPE_GLYF_GET (GET_PIC(library)->tt_service_truetype_glyf) + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __TTPIC_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttpload.c b/uppsrc/plugin/FT_fontsys/src/truetype/ttpload.c new file mode 100644 index 000000000..d5f97002d --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttpload.c @@ -0,0 +1,599 @@ +/***************************************************************************/ +/* */ +/* ttpload.c */ +/* */ +/* TrueType-specific tables loader (body). */ +/* */ +/* Copyright 1996-2002, 2004-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H + +#include "ttpload.h" + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + +#include "tterrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttpload + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_loca */ + /* */ + /* <Description> */ + /* Load the locations table. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_loca( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_ULong table_len; + FT_Int shift; + + + /* we need the size of the `glyf' table for malformed `loca' tables */ + error = face->goto_table( face, TTAG_glyf, stream, &face->glyf_len ); + + /* it is possible that a font doesn't have a glyf table at all */ + /* or its size is zero */ + if ( error == TT_Err_Table_Missing ) + face->glyf_len = 0; + else if ( error ) + goto Exit; + + FT_TRACE2(( "Locations " )); + error = face->goto_table( face, TTAG_loca, stream, &table_len ); + if ( error ) + { + error = TT_Err_Locations_Missing; + goto Exit; + } + + if ( face->header.Index_To_Loc_Format != 0 ) + { + shift = 2; + + if ( table_len >= 0x40000L ) + { + FT_TRACE2(( "table too large\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + face->num_locations = table_len >> shift; + } + else + { + shift = 1; + + if ( table_len >= 0x20000L ) + { + FT_TRACE2(( "table too large\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + face->num_locations = table_len >> shift; + } + + if ( face->num_locations != (FT_ULong)face->root.num_glyphs + 1 ) + { + FT_TRACE2(( "glyph count mismatch! loca: %d, maxp: %d\n", + face->num_locations - 1, face->root.num_glyphs )); + + /* we only handle the case where `maxp' gives a larger value */ + if ( face->num_locations <= (FT_ULong)face->root.num_glyphs ) + { + FT_Long new_loca_len = + ( (FT_Long)( face->root.num_glyphs ) + 1 ) << shift; + + TT_Table entry = face->dir_tables; + TT_Table limit = entry + face->num_tables; + + FT_Long pos = FT_Stream_Pos( stream ); + FT_Long dist = 0x7FFFFFFFL; + + + /* compute the distance to next table in font file */ + for ( ; entry < limit; entry++ ) + { + FT_Long diff = entry->Offset - pos; + + + if ( diff > 0 && diff < dist ) + dist = diff; + } + + if ( entry == limit ) + { + /* `loca' is the last table */ + dist = stream->size - pos; + } + + if ( new_loca_len <= dist ) + { + face->num_locations = face->root.num_glyphs + 1; + table_len = new_loca_len; + + FT_TRACE2(( "adjusting num_locations to %d\n", + face->num_locations )); + } + } + } + + /* + * Extract the frame. We don't need to decompress it since + * we are able to parse it directly. + */ + if ( FT_FRAME_EXTRACT( table_len, face->glyph_locations ) ) + goto Exit; + + FT_TRACE2(( "loaded\n" )); + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_ULong ) + tt_face_get_location( TT_Face face, + FT_UInt gindex, + FT_UInt *asize ) + { + FT_ULong pos1, pos2; + FT_Byte* p; + FT_Byte* p_limit; + + + pos1 = pos2 = 0; + + if ( gindex < face->num_locations ) + { + if ( face->header.Index_To_Loc_Format != 0 ) + { + p = face->glyph_locations + gindex * 4; + p_limit = face->glyph_locations + face->num_locations * 4; + + pos1 = FT_NEXT_ULONG( p ); + pos2 = pos1; + + if ( p + 4 <= p_limit ) + pos2 = FT_NEXT_ULONG( p ); + } + else + { + p = face->glyph_locations + gindex * 2; + p_limit = face->glyph_locations + face->num_locations * 2; + + pos1 = FT_NEXT_USHORT( p ); + pos2 = pos1; + + if ( p + 2 <= p_limit ) + pos2 = FT_NEXT_USHORT( p ); + + pos1 <<= 1; + pos2 <<= 1; + } + } + + /* Check broken location data */ + if ( pos1 >= face->glyf_len ) + { + FT_TRACE1(( "tt_face_get_location:" + " too large offset=0x%08lx found for gid=0x%04lx," + " exceeding the end of glyf table (0x%08lx)\n", + pos1, gindex, face->glyf_len )); + *asize = 0; + return 0; + } + + if ( pos2 >= face->glyf_len ) + { + FT_TRACE1(( "tt_face_get_location:" + " too large offset=0x%08lx found for gid=0x%04lx," + " truncate at the end of glyf table (0x%08lx)\n", + pos2, gindex + 1, face->glyf_len )); + pos2 = face->glyf_len; + } + + /* The `loca' table must be ordered; it refers to the length of */ + /* an entry as the difference between the current and the next */ + /* position. However, there do exist (malformed) fonts which */ + /* don't obey this rule, so we are only able to provide an */ + /* upper bound for the size. */ + /* */ + /* We get (intentionally) a wrong, non-zero result in case the */ + /* `glyf' table is missing. */ + if ( pos2 >= pos1 ) + *asize = (FT_UInt)( pos2 - pos1 ); + else + *asize = (FT_UInt)( face->glyf_len - pos1 ); + + return pos1; + } + + + FT_LOCAL_DEF( void ) + tt_face_done_loca( TT_Face face ) + { + FT_Stream stream = face->root.stream; + + + FT_FRAME_RELEASE( face->glyph_locations ); + face->num_locations = 0; + } + + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_cvt */ + /* */ + /* <Description> */ + /* Load the control value table into a face object. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_cvt( TT_Face face, + FT_Stream stream ) + { +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong table_len; + + + FT_TRACE2(( "CVT " )); + + error = face->goto_table( face, TTAG_cvt, stream, &table_len ); + if ( error ) + { + FT_TRACE2(( "is missing\n" )); + + face->cvt_size = 0; + face->cvt = NULL; + error = TT_Err_Ok; + + goto Exit; + } + + face->cvt_size = table_len / 2; + + if ( FT_NEW_ARRAY( face->cvt, face->cvt_size ) ) + goto Exit; + + if ( FT_FRAME_ENTER( face->cvt_size * 2L ) ) + goto Exit; + + { + FT_Short* cur = face->cvt; + FT_Short* limit = cur + face->cvt_size; + + + for ( ; cur < limit; cur++ ) + *cur = FT_GET_SHORT(); + } + + FT_FRAME_EXIT(); + FT_TRACE2(( "loaded\n" )); + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + if ( face->doblend ) + error = tt_face_vary_cvt( face, stream ); +#endif + + Exit: + return error; + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return TT_Err_Ok; + +#endif + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_fpgm */ + /* */ + /* <Description> */ + /* Load the font program. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_fpgm( TT_Face face, + FT_Stream stream ) + { +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_Error error; + FT_ULong table_len; + + + FT_TRACE2(( "Font program " )); + + /* The font program is optional */ + error = face->goto_table( face, TTAG_fpgm, stream, &table_len ); + if ( error ) + { + face->font_program = NULL; + face->font_program_size = 0; + error = TT_Err_Ok; + + FT_TRACE2(( "is missing\n" )); + } + else + { + face->font_program_size = table_len; + if ( FT_FRAME_EXTRACT( table_len, face->font_program ) ) + goto Exit; + + FT_TRACE2(( "loaded, %12d bytes\n", face->font_program_size )); + } + + Exit: + return error; + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return TT_Err_Ok; + +#endif + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_prep */ + /* */ + /* <Description> */ + /* Load the cvt program. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_prep( TT_Face face, + FT_Stream stream ) + { +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_Error error; + FT_ULong table_len; + + + FT_TRACE2(( "Prep program " )); + + error = face->goto_table( face, TTAG_prep, stream, &table_len ); + if ( error ) + { + face->cvt_program = NULL; + face->cvt_program_size = 0; + error = TT_Err_Ok; + + FT_TRACE2(( "is missing\n" )); + } + else + { + face->cvt_program_size = table_len; + if ( FT_FRAME_EXTRACT( table_len, face->cvt_program ) ) + goto Exit; + + FT_TRACE2(( "loaded, %12d bytes\n", face->cvt_program_size )); + } + + Exit: + return error; + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return TT_Err_Ok; + +#endif + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_hdmx */ + /* */ + /* <Description> */ + /* Load the `hdmx' table into the face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hdmx( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_UInt version, nn, num_records; + FT_ULong table_size, record_size; + FT_Byte* p; + FT_Byte* limit; + + + /* this table is optional */ + error = face->goto_table( face, TTAG_hdmx, stream, &table_size ); + if ( error || table_size < 8 ) + return TT_Err_Ok; + + if ( FT_FRAME_EXTRACT( table_size, face->hdmx_table ) ) + goto Exit; + + p = face->hdmx_table; + limit = p + table_size; + + version = FT_NEXT_USHORT( p ); + num_records = FT_NEXT_USHORT( p ); + record_size = FT_NEXT_ULONG( p ); + + /* The maximum number of bytes in an hdmx device record is the */ + /* maximum number of glyphs + 2; this is 0xFFFF + 2; this is */ + /* the reason why `record_size' is a long (which we read as */ + /* unsigned long for convenience). In practice, two bytes */ + /* sufficient to hold the size value. */ + /* */ + /* There are at least two fonts, HANNOM-A and HANNOM-B version */ + /* 2.0 (2005), which get this wrong: The upper two bytes of */ + /* the size value are set to 0xFF instead of 0x00. We catch */ + /* and fix this. */ + + if ( record_size >= 0xFFFF0000UL ) + record_size &= 0xFFFFU; + + /* The limit for `num_records' is a heuristic value. */ + + if ( version != 0 || num_records > 255 || record_size > 0x10001L ) + { + error = TT_Err_Invalid_File_Format; + goto Fail; + } + + if ( FT_NEW_ARRAY( face->hdmx_record_sizes, num_records ) ) + goto Fail; + + for ( nn = 0; nn < num_records; nn++ ) + { + if ( p + record_size > limit ) + break; + + face->hdmx_record_sizes[nn] = p[0]; + p += record_size; + } + + face->hdmx_record_count = nn; + face->hdmx_table_size = table_size; + face->hdmx_record_size = record_size; + + Exit: + return error; + + Fail: + FT_FRAME_RELEASE( face->hdmx_table ); + face->hdmx_table_size = 0; + goto Exit; + } + + + FT_LOCAL_DEF( void ) + tt_face_free_hdmx( TT_Face face ) + { + FT_Stream stream = face->root.stream; + FT_Memory memory = stream->memory; + + + FT_FREE( face->hdmx_record_sizes ); + FT_FRAME_RELEASE( face->hdmx_table ); + } + + + /*************************************************************************/ + /* */ + /* Return the advance width table for a given pixel size if it is found */ + /* in the font's `hdmx' table (if any). */ + /* */ + FT_LOCAL_DEF( FT_Byte* ) + tt_face_get_device_metrics( TT_Face face, + FT_UInt ppem, + FT_UInt gindex ) + { + FT_UInt nn; + FT_Byte* result = NULL; + FT_ULong record_size = face->hdmx_record_size; + FT_Byte* record = face->hdmx_table + 8; + + + for ( nn = 0; nn < face->hdmx_record_count; nn++ ) + if ( face->hdmx_record_sizes[nn] == ppem ) + { + gindex += 2; + if ( gindex < record_size ) + result = record + nn * record_size + gindex; + break; + } + + return result; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/truetype/ttpload.h b/uppsrc/plugin/FT_fontsys/src/truetype/ttpload.h new file mode 100644 index 000000000..e477309c0 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/truetype/ttpload.h @@ -0,0 +1,75 @@ +/***************************************************************************/ +/* */ +/* ttpload.h */ +/* */ +/* TrueType-specific tables loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTPLOAD_H__ +#define __TTPLOAD_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_loca( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( FT_ULong ) + tt_face_get_location( TT_Face face, + FT_UInt gindex, + FT_UInt *asize ); + + FT_LOCAL( void ) + tt_face_done_loca( TT_Face face ); + + FT_LOCAL( FT_Error ) + tt_face_load_cvt( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( FT_Error ) + tt_face_load_fpgm( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_prep( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_hdmx( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( void ) + tt_face_free_hdmx( TT_Face face ); + + + FT_LOCAL( FT_Byte* ) + tt_face_get_device_metrics( TT_Face face, + FT_UInt ppem, + FT_UInt gindex ); + +FT_END_HEADER + +#endif /* __TTPLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1afm.c b/uppsrc/plugin/FT_fontsys/src/type1/t1afm.c new file mode 100644 index 000000000..05ac10e87 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1afm.c @@ -0,0 +1,397 @@ +/***************************************************************************/ +/* */ +/* t1afm.c */ +/* */ +/* AFM support for Type 1 fonts (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "t1afm.h" +#include "t1errors.h" +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1afm + + + FT_LOCAL_DEF( void ) + T1_Done_Metrics( FT_Memory memory, + AFM_FontInfo fi ) + { + FT_FREE( fi->KernPairs ); + fi->NumKernPair = 0; + + FT_FREE( fi->TrackKerns ); + fi->NumTrackKern = 0; + + FT_FREE( fi ); + } + + + /* read a glyph name and return the equivalent glyph index */ + static FT_Int + t1_get_index( const char* name, + FT_Offset len, + void* user_data ) + { + T1_Font type1 = (T1_Font)user_data; + FT_Int n; + + + /* PS string/name length must be < 16-bit */ + if ( len > 0xFFFFU ) + return 0; + + for ( n = 0; n < type1->num_glyphs; n++ ) + { + char* gname = (char*)type1->glyph_names[n]; + + + if ( gname && gname[0] == name[0] && + ft_strlen( gname ) == len && + ft_strncmp( gname, name, len ) == 0 ) + return n; + } + + return 0; + } + + +#undef KERN_INDEX +#define KERN_INDEX( g1, g2 ) ( ( (FT_ULong)(g1) << 16 ) | (g2) ) + + + /* compare two kerning pairs */ + FT_CALLBACK_DEF( int ) + compare_kern_pairs( const void* a, + const void* b ) + { + AFM_KernPair pair1 = (AFM_KernPair)a; + AFM_KernPair pair2 = (AFM_KernPair)b; + + FT_ULong index1 = KERN_INDEX( pair1->index1, pair1->index2 ); + FT_ULong index2 = KERN_INDEX( pair2->index1, pair2->index2 ); + + + if ( index1 > index2 ) + return 1; + else if ( index1 < index2 ) + return -1; + else + return 0; + } + + + /* parse a PFM file -- for now, only read the kerning pairs */ + static FT_Error + T1_Read_PFM( FT_Face t1_face, + FT_Stream stream, + AFM_FontInfo fi ) + { + FT_Error error = T1_Err_Ok; + FT_Memory memory = stream->memory; + FT_Byte* start; + FT_Byte* limit; + FT_Byte* p; + AFM_KernPair kp; + FT_Int width_table_length; + FT_CharMap oldcharmap; + FT_CharMap charmap; + FT_Int n; + + + start = (FT_Byte*)stream->cursor; + limit = (FT_Byte*)stream->limit; + p = start; + + /* Figure out how long the width table is. */ + /* This info is a little-endian short at offset 99. */ + p = start + 99; + if ( p + 2 > limit ) + { + error = T1_Err_Unknown_File_Format; + goto Exit; + } + width_table_length = FT_PEEK_USHORT_LE( p ); + + p += 18 + width_table_length; + if ( p + 0x12 > limit || FT_PEEK_USHORT_LE( p ) < 0x12 ) + /* extension table is probably optional */ + goto Exit; + + /* Kerning offset is 14 bytes from start of extensions table. */ + p += 14; + p = start + FT_PEEK_ULONG_LE( p ); + + if ( p == start ) + /* zero offset means no table */ + goto Exit; + + if ( p + 2 > limit ) + { + error = T1_Err_Unknown_File_Format; + goto Exit; + } + + fi->NumKernPair = FT_PEEK_USHORT_LE( p ); + p += 2; + if ( p + 4 * fi->NumKernPair > limit ) + { + error = T1_Err_Unknown_File_Format; + goto Exit; + } + + /* Actually, kerning pairs are simply optional! */ + if ( fi->NumKernPair == 0 ) + goto Exit; + + /* allocate the pairs */ + if ( FT_QNEW_ARRAY( fi->KernPairs, fi->NumKernPair ) ) + goto Exit; + + /* now, read each kern pair */ + kp = fi->KernPairs; + limit = p + 4 * fi->NumKernPair; + + /* PFM kerning data are stored by encoding rather than glyph index, */ + /* so find the PostScript charmap of this font and install it */ + /* temporarily. If we find no PostScript charmap, then just use */ + /* the default and hope it is the right one. */ + oldcharmap = t1_face->charmap; + charmap = NULL; + + for ( n = 0; n < t1_face->num_charmaps; n++ ) + { + charmap = t1_face->charmaps[n]; + /* check against PostScript pseudo platform */ + if ( charmap->platform_id == 7 ) + { + error = FT_Set_Charmap( t1_face, charmap ); + if ( error ) + goto Exit; + break; + } + } + + /* Kerning info is stored as: */ + /* */ + /* encoding of first glyph (1 byte) */ + /* encoding of second glyph (1 byte) */ + /* offset (little-endian short) */ + for ( ; p < limit ; p += 4 ) + { + kp->index1 = FT_Get_Char_Index( t1_face, p[0] ); + kp->index2 = FT_Get_Char_Index( t1_face, p[1] ); + + kp->x = (FT_Int)FT_PEEK_SHORT_LE(p + 2); + kp->y = 0; + + kp++; + } + + if ( oldcharmap != NULL ) + error = FT_Set_Charmap( t1_face, oldcharmap ); + if ( error ) + goto Exit; + + /* now, sort the kern pairs according to their glyph indices */ + ft_qsort( fi->KernPairs, fi->NumKernPair, sizeof ( AFM_KernPairRec ), + compare_kern_pairs ); + + Exit: + if ( error ) + { + FT_FREE( fi->KernPairs ); + fi->NumKernPair = 0; + } + + return error; + } + + + /* parse a metrics file -- either AFM or PFM depending on what */ + /* it turns out to be */ + FT_LOCAL_DEF( FT_Error ) + T1_Read_Metrics( FT_Face t1_face, + FT_Stream stream ) + { + PSAux_Service psaux; + FT_Memory memory = stream->memory; + AFM_ParserRec parser; + AFM_FontInfo fi = NULL; + FT_Error error = T1_Err_Unknown_File_Format; + T1_Font t1_font = &( (T1_Face)t1_face )->type1; + + + if ( FT_NEW( fi ) || + FT_FRAME_ENTER( stream->size ) ) + goto Exit; + + fi->FontBBox = t1_font->font_bbox; + fi->Ascender = t1_font->font_bbox.yMax; + fi->Descender = t1_font->font_bbox.yMin; + + psaux = (PSAux_Service)( (T1_Face)t1_face )->psaux; + if ( psaux && psaux->afm_parser_funcs ) + { + error = psaux->afm_parser_funcs->init( &parser, + stream->memory, + stream->cursor, + stream->limit ); + + if ( !error ) + { + parser.FontInfo = fi; + parser.get_index = t1_get_index; + parser.user_data = t1_font; + + error = psaux->afm_parser_funcs->parse( &parser ); + psaux->afm_parser_funcs->done( &parser ); + } + } + + if ( error == T1_Err_Unknown_File_Format ) + { + FT_Byte* start = stream->cursor; + + + /* MS Windows allows versions up to 0x3FF without complaining */ + if ( stream->size > 6 && + start[1] < 4 && + FT_PEEK_ULONG_LE( start + 2 ) == stream->size ) + error = T1_Read_PFM( t1_face, stream, fi ); + } + + if ( !error ) + { + t1_font->font_bbox = fi->FontBBox; + + t1_face->bbox.xMin = fi->FontBBox.xMin >> 16; + t1_face->bbox.yMin = fi->FontBBox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + t1_face->bbox.xMax = ( fi->FontBBox.xMax + 0xFFFF ) >> 16; + t1_face->bbox.yMax = ( fi->FontBBox.yMax + 0xFFFF ) >> 16; + + /* no `U' suffix here to 0x8000! */ + t1_face->ascender = (FT_Short)( ( fi->Ascender + 0x8000 ) >> 16 ); + t1_face->descender = (FT_Short)( ( fi->Descender + 0x8000 ) >> 16 ); + + if ( fi->NumKernPair ) + { + t1_face->face_flags |= FT_FACE_FLAG_KERNING; + ( (T1_Face)t1_face )->afm_data = fi; + fi = NULL; + } + } + + FT_FRAME_EXIT(); + + Exit: + if ( fi != NULL ) + T1_Done_Metrics( memory, fi ); + + return error; + } + + + /* find the kerning for a given glyph pair */ + FT_LOCAL_DEF( void ) + T1_Get_Kerning( AFM_FontInfo fi, + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ) + { + AFM_KernPair min, mid, max; + FT_ULong idx = KERN_INDEX( glyph1, glyph2 ); + + + /* simple binary search */ + min = fi->KernPairs; + max = min + fi->NumKernPair - 1; + + while ( min <= max ) + { + FT_ULong midi; + + + mid = min + ( max - min ) / 2; + midi = KERN_INDEX( mid->index1, mid->index2 ); + + if ( midi == idx ) + { + kerning->x = mid->x; + kerning->y = mid->y; + + return; + } + + if ( midi < idx ) + min = mid + 1; + else + max = mid - 1; + } + + kerning->x = 0; + kerning->y = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Track_Kerning( FT_Face face, + FT_Fixed ptsize, + FT_Int degree, + FT_Fixed* kerning ) + { + AFM_FontInfo fi = (AFM_FontInfo)( (T1_Face)face )->afm_data; + FT_Int i; + + + if ( !fi ) + return T1_Err_Invalid_Argument; + + for ( i = 0; i < fi->NumTrackKern; i++ ) + { + AFM_TrackKern tk = fi->TrackKerns + i; + + + if ( tk->degree != degree ) + continue; + + if ( ptsize < tk->min_ptsize ) + *kerning = tk->min_kern; + else if ( ptsize > tk->max_ptsize ) + *kerning = tk->max_kern; + else + { + *kerning = FT_MulDiv( ptsize - tk->min_ptsize, + tk->max_kern - tk->min_kern, + tk->max_ptsize - tk->min_ptsize ) + + tk->min_kern; + } + } + + return T1_Err_Ok; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1afm.h b/uppsrc/plugin/FT_fontsys/src/type1/t1afm.h new file mode 100644 index 000000000..18648e15c --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1afm.h @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* t1afm.h */ +/* */ +/* AFM support for Type 1 fonts (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1AFM_H__ +#define __T1AFM_H__ + +#include <freetype/ft2build.h> +#include "t1objs.h" +#include FT_INTERNAL_TYPE1_TYPES_H + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + T1_Read_Metrics( FT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + T1_Done_Metrics( FT_Memory memory, + AFM_FontInfo fi ); + + FT_LOCAL( void ) + T1_Get_Kerning( AFM_FontInfo fi, + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ); + + FT_LOCAL( FT_Error ) + T1_Get_Track_Kerning( FT_Face face, + FT_Fixed ptsize, + FT_Int degree, + FT_Fixed* kerning ); + +FT_END_HEADER + +#endif /* __T1AFM_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1driver.c b/uppsrc/plugin/FT_fontsys/src/type1/t1driver.c new file mode 100644 index 000000000..10452bbdb --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1driver.c @@ -0,0 +1,331 @@ +/***************************************************************************/ +/* */ +/* t1driver.c */ +/* */ +/* Type 1 driver interface (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "t1driver.h" +#include "t1gload.h" +#include "t1load.h" + +#include "t1errors.h" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "t1afm.h" +#endif + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include FT_SERVICE_MULTIPLE_MASTERS_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_KERNING_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1driver + + /* + * GLYPH DICT SERVICE + * + */ + + static FT_Error + t1_get_glyph_name( T1_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); + + return T1_Err_Ok; + } + + + static FT_UInt + t1_get_name_index( T1_Face face, + FT_String* glyph_name ) + { + FT_Int i; + FT_String* gname; + + + for ( i = 0; i < face->type1.num_glyphs; i++ ) + { + gname = face->type1.glyph_names[i]; + + if ( !ft_strcmp( glyph_name, gname ) ) + return (FT_UInt)i; + } + + return 0; + } + + + static const FT_Service_GlyphDictRec t1_service_glyph_dict = + { + (FT_GlyphDict_GetNameFunc) t1_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)t1_get_name_index + }; + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + t1_get_ps_name( T1_Face face ) + { + return (const char*) face->type1.font_name; + } + + + static const FT_Service_PsFontNameRec t1_service_ps_name = + { + (FT_PsName_GetFunc)t1_get_ps_name + }; + + + /* + * MULTIPLE MASTERS SERVICE + * + */ + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + static const FT_Service_MultiMastersRec t1_service_multi_masters = + { + (FT_Get_MM_Func) T1_Get_Multi_Master, + (FT_Set_MM_Design_Func) T1_Set_MM_Design, + (FT_Set_MM_Blend_Func) T1_Set_MM_Blend, + (FT_Get_MM_Var_Func) T1_Get_MM_Var, + (FT_Set_Var_Design_Func)T1_Set_Var_Design + }; +#endif + + + /* + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Error + t1_ps_get_font_info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + *afont_info = ((T1_Face)face)->type1.font_info; + + return T1_Err_Ok; + } + + + static FT_Error + t1_ps_get_font_extra( FT_Face face, + PS_FontExtraRec* afont_extra ) + { + *afont_extra = ((T1_Face)face)->type1.font_extra; + + return T1_Err_Ok; + } + + + static FT_Int + t1_ps_has_glyph_names( FT_Face face ) + { + FT_UNUSED( face ); + + return 1; + } + + + static FT_Error + t1_ps_get_font_private( FT_Face face, + PS_PrivateRec* afont_private ) + { + *afont_private = ((T1_Face)face)->type1.private_dict; + + return T1_Err_Ok; + } + + + static const FT_Service_PsInfoRec t1_service_ps_info = + { + (PS_GetFontInfoFunc) t1_ps_get_font_info, + (PS_GetFontExtraFunc) t1_ps_get_font_extra, + (PS_HasGlyphNamesFunc) t1_ps_has_glyph_names, + (PS_GetFontPrivateFunc)t1_ps_get_font_private, + }; + + +#ifndef T1_CONFIG_OPTION_NO_AFM + static const FT_Service_KerningRec t1_service_kerning = + { + T1_Get_Track_Kerning, + }; +#endif + + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec t1_services[] = + { + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t1_service_ps_name }, + { FT_SERVICE_ID_GLYPH_DICT, &t1_service_glyph_dict }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_1 }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &t1_service_ps_info }, + +#ifndef T1_CONFIG_OPTION_NO_AFM + { FT_SERVICE_ID_KERNING, &t1_service_kerning }, +#endif + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + { FT_SERVICE_ID_MULTI_MASTERS, &t1_service_multi_masters }, +#endif + { NULL, NULL } + }; + + + static FT_Module_Interface + Get_Interface( FT_Driver driver, + const FT_String* t1_interface ) + { + FT_UNUSED( driver ); + + return ft_service_list_lookup( t1_services, t1_interface ); + } + + +#ifndef T1_CONFIG_OPTION_NO_AFM + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Get_Kerning */ + /* */ + /* <Description> */ + /* A driver method used to return the kerning vector between two */ + /* glyphs of the same face. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* <Output> */ + /* kerning :: The kerning vector. This is in font units for */ + /* scalable formats, and in pixels for fixed-sizes */ + /* formats. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this function. Other layouts, or more sophisticated */ + /* kernings are out of scope of this method (the basic driver */ + /* interface is meant to be simple). */ + /* */ + /* They can be implemented by format-specific interfaces. */ + /* */ + static FT_Error + Get_Kerning( T1_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ) + { + kerning->x = 0; + kerning->y = 0; + + if ( face->afm_data ) + T1_Get_Kerning( (AFM_FontInfo)face->afm_data, + left_glyph, + right_glyph, + kerning ); + + return T1_Err_Ok; + } + + +#endif /* T1_CONFIG_OPTION_NO_AFM */ + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec t1_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + FT_MODULE_DRIVER_HAS_HINTER, + + sizeof( FT_DriverRec ), + + "type1", + 0x10000L, + 0x20000L, + + 0, /* format interface */ + + (FT_Module_Constructor)T1_Driver_Init, + (FT_Module_Destructor) T1_Driver_Done, + (FT_Module_Requester) Get_Interface, + }, + + sizeof( T1_FaceRec ), + sizeof( T1_SizeRec ), + sizeof( T1_GlyphSlotRec ), + + (FT_Face_InitFunc) T1_Face_Init, + (FT_Face_DoneFunc) T1_Face_Done, + (FT_Size_InitFunc) T1_Size_Init, + (FT_Size_DoneFunc) T1_Size_Done, + (FT_Slot_InitFunc) T1_GlyphSlot_Init, + (FT_Slot_DoneFunc) T1_GlyphSlot_Done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + (FT_Slot_LoadFunc) T1_Load_Glyph, + +#ifdef T1_CONFIG_OPTION_NO_AFM + (FT_Face_GetKerningFunc) 0, + (FT_Face_AttachFunc) 0, +#else + (FT_Face_GetKerningFunc) Get_Kerning, + (FT_Face_AttachFunc) T1_Read_Metrics, +#endif + (FT_Face_GetAdvancesFunc) T1_Get_Advances, + (FT_Size_RequestFunc) T1_Size_Request, + (FT_Size_SelectFunc) 0 + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1driver.h b/uppsrc/plugin/FT_fontsys/src/type1/t1driver.h new file mode 100644 index 000000000..303269e8a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1driver.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* t1driver.h */ +/* */ +/* High-level Type 1 driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1DRIVER_H__ +#define __T1DRIVER_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) t1_driver_class; + + +FT_END_HEADER + +#endif /* __T1DRIVER_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1errors.h b/uppsrc/plugin/FT_fontsys/src/type1/t1errors.h new file mode 100644 index 000000000..81221c343 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1errors.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* t1errors.h */ +/* */ +/* Type 1 error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Type 1 error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __T1ERRORS_H__ +#define __T1ERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX T1_Err_ +#define FT_ERR_BASE FT_Mod_Err_Type1 + +#include FT_ERRORS_H + +#endif /* __T1ERRORS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1gload.c b/uppsrc/plugin/FT_fontsys/src/type1/t1gload.c new file mode 100644 index 000000000..e3b22b705 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1gload.c @@ -0,0 +1,515 @@ +/***************************************************************************/ +/* */ +/* t1gload.c */ +/* */ +/* Type 1 Glyph Loader (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include "t1gload.h" +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_OUTLINE_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "t1errors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1gload + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ + /********** *********/ + /********** The following code is in charge of computing *********/ + /********** the maximum advance width of the font. It *********/ + /********** quickly processes each glyph charstring to *********/ + /********** extract the value from either a `sbw' or `seac' *********/ + /********** operator. *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + T1_Parse_Glyph_And_Get_Char_String( T1_Decoder decoder, + FT_UInt glyph_index, + FT_Data* char_string ) + { + T1_Face face = (T1_Face)decoder->builder.face; + T1_Font type1 = &face->type1; + FT_Error error = T1_Err_Ok; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Incremental_InterfaceRec *inc = + face->root.internal->incremental_interface; +#endif + + + decoder->font_matrix = type1->font_matrix; + decoder->font_offset = type1->font_offset; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* For incremental fonts get the character data using the */ + /* callback function. */ + if ( inc ) + error = inc->funcs->get_glyph_data( inc->object, + glyph_index, char_string ); + else + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + /* For ordinary fonts get the character data stored in the face record. */ + { + char_string->pointer = type1->charstrings[glyph_index]; + char_string->length = (FT_Int)type1->charstrings_len[glyph_index]; + } + + if ( !error ) + error = decoder->funcs.parse_charstrings( + decoder, (FT_Byte*)char_string->pointer, + char_string->length ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* Incremental fonts can optionally override the metrics. */ + if ( !error && inc && inc->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + + + metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x ); + metrics.bearing_y = 0; + metrics.advance = FIXED_TO_INT( decoder->builder.advance.x ); + metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y ); + + error = inc->funcs->get_glyph_metrics( inc->object, + glyph_index, FALSE, &metrics ); + + decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x ); + decoder->builder.advance.x = INT_TO_FIXED( metrics.advance ); + decoder->builder.advance.y = INT_TO_FIXED( metrics.advance_v ); + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + T1_Parse_Glyph( T1_Decoder decoder, + FT_UInt glyph_index ) + { + FT_Data glyph_data; + FT_Error error = T1_Parse_Glyph_And_Get_Char_String( + decoder, glyph_index, &glyph_data ); + + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( !error ) + { + T1_Face face = (T1_Face)decoder->builder.face; + + + if ( face->root.internal->incremental_interface ) + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, + &glyph_data ); + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Compute_Max_Advance( T1_Face face, + FT_Pos* max_advance ) + { + FT_Error error; + T1_DecoderRec decoder; + FT_Int glyph_index; + T1_Font type1 = &face->type1; + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) ); + + *max_advance = 0; + + /* initialize load decoder */ + error = psaux->t1_decoder_funcs->init( &decoder, + (FT_Face)face, + 0, /* size */ + 0, /* glyph slot */ + (FT_Byte**)type1->glyph_names, + face->blend, + 0, + FT_RENDER_MODE_NORMAL, + T1_Parse_Glyph ); + if ( error ) + return error; + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + decoder.num_subrs = type1->num_subrs; + decoder.subrs = type1->subrs; + decoder.subrs_len = type1->subrs_len; + + decoder.buildchar = face->buildchar; + decoder.len_buildchar = face->len_buildchar; + + *max_advance = 0; + + /* for each glyph, parse the glyph charstring and extract */ + /* the advance width */ + for ( glyph_index = 0; glyph_index < type1->num_glyphs; glyph_index++ ) + { + /* now get load the unscaled outline */ + error = T1_Parse_Glyph( &decoder, glyph_index ); + if ( glyph_index == 0 || decoder.builder.advance.x > *max_advance ) + *max_advance = decoder.builder.advance.x; + + /* ignore the error if one occurred - skip to next glyph */ + } + + psaux->t1_decoder_funcs->done( &decoder ); + + return T1_Err_Ok; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Advances( T1_Face face, + FT_UInt first, + FT_UInt count, + FT_ULong load_flags, + FT_Fixed* advances ) + { + T1_DecoderRec decoder; + T1_Font type1 = &face->type1; + PSAux_Service psaux = (PSAux_Service)face->psaux; + FT_UInt nn; + FT_Error error; + + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + for ( nn = 0; nn < count; nn++ ) + advances[nn] = 0; + + return T1_Err_Ok; + } + + error = psaux->t1_decoder_funcs->init( &decoder, + (FT_Face)face, + 0, /* size */ + 0, /* glyph slot */ + (FT_Byte**)type1->glyph_names, + face->blend, + 0, + FT_RENDER_MODE_NORMAL, + T1_Parse_Glyph ); + if ( error ) + return error; + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + decoder.num_subrs = type1->num_subrs; + decoder.subrs = type1->subrs; + decoder.subrs_len = type1->subrs_len; + + decoder.buildchar = face->buildchar; + decoder.len_buildchar = face->len_buildchar; + + for ( nn = 0; nn < count; nn++ ) + { + error = T1_Parse_Glyph( &decoder, first + nn ); + if ( !error ) + advances[nn] = FIXED_TO_INT( decoder.builder.advance.x ); + else + advances[nn] = 0; + } + + return T1_Err_Ok; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Load_Glyph( T1_GlyphSlot glyph, + T1_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + T1_DecoderRec decoder; + T1_Face face = (T1_Face)glyph->root.face; + FT_Bool hinting; + T1_Font type1 = &face->type1; + PSAux_Service psaux = (PSAux_Service)face->psaux; + const T1_Decoder_Funcs decoder_funcs = psaux->t1_decoder_funcs; + + FT_Matrix font_matrix; + FT_Vector font_offset; + FT_Data glyph_data; + FT_Bool must_finish_decoder = FALSE; +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Bool glyph_data_loaded = 0; +#endif + + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( glyph_index >= (FT_UInt)face->root.num_glyphs && + !face->root.internal->incremental_interface ) +#else + if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + error = T1_Err_Invalid_Argument; + goto Exit; + } + + FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) ); + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + if ( size ) + { + glyph->x_scale = size->root.metrics.x_scale; + glyph->y_scale = size->root.metrics.y_scale; + } + else + { + glyph->x_scale = 0x10000L; + glyph->y_scale = 0x10000L; + } + + glyph->root.outline.n_points = 0; + glyph->root.outline.n_contours = 0; + + hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && + ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); + + glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; + + error = decoder_funcs->init( &decoder, + (FT_Face)face, + (FT_Size)size, + (FT_GlyphSlot)glyph, + (FT_Byte**)type1->glyph_names, + face->blend, + FT_BOOL( hinting ), + FT_LOAD_TARGET_MODE( load_flags ), + T1_Parse_Glyph ); + if ( error ) + goto Exit; + + must_finish_decoder = TRUE; + + decoder.builder.no_recurse = FT_BOOL( + ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ); + + decoder.num_subrs = type1->num_subrs; + decoder.subrs = type1->subrs; + decoder.subrs_len = type1->subrs_len; + + decoder.buildchar = face->buildchar; + decoder.len_buildchar = face->len_buildchar; + + /* now load the unscaled outline */ + error = T1_Parse_Glyph_And_Get_Char_String( &decoder, glyph_index, + &glyph_data ); + if ( error ) + goto Exit; +#ifdef FT_CONFIG_OPTION_INCREMENTAL + glyph_data_loaded = 1; +#endif + + font_matrix = decoder.font_matrix; + font_offset = decoder.font_offset; + + /* save new glyph tables */ + decoder_funcs->done( &decoder ); + + must_finish_decoder = FALSE; + + /* now, set the metrics -- this is rather simple, as */ + /* the left side bearing is the xMin, and the top side */ + /* bearing the yMax */ + if ( !error ) + { + glyph->root.outline.flags &= FT_OUTLINE_OWNER; + glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL; + + /* for composite glyphs, return only left side bearing and */ + /* advance width */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + FT_Slot_Internal internal = glyph->root.internal; + + + glyph->root.metrics.horiBearingX = + FIXED_TO_INT( decoder.builder.left_bearing.x ); + glyph->root.metrics.horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + + internal->glyph_matrix = font_matrix; + internal->glyph_delta = font_offset; + internal->glyph_transformed = 1; + } + else + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &glyph->root.metrics; + FT_Vector advance; + + + /* copy the _unscaled_ advance width */ + metrics->horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + glyph->root.linearHoriAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + glyph->root.internal->glyph_transformed = 0; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + /* make up vertical ones */ + metrics->vertAdvance = ( face->type1.font_bbox.yMax - + face->type1.font_bbox.yMin ) >> 16; + glyph->root.linearVertAdvance = metrics->vertAdvance; + } + else + { + metrics->vertAdvance = + FIXED_TO_INT( decoder.builder.advance.y ); + glyph->root.linearVertAdvance = + FIXED_TO_INT( decoder.builder.advance.y ); + } + + glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; + + if ( size && size->root.metrics.y_ppem < 24 ) + glyph->root.outline.flags |= FT_OUTLINE_HIGH_PRECISION; + +#if 1 + /* apply the font matrix, if any */ + if ( font_matrix.xx != 0x10000L || font_matrix.yy != font_matrix.xx || + font_matrix.xy != 0 || font_matrix.yx != 0 ) + FT_Outline_Transform( &glyph->root.outline, &font_matrix ); + + if ( font_offset.x || font_offset.y ) + FT_Outline_Translate( &glyph->root.outline, + font_offset.x, + font_offset.y ); + + advance.x = metrics->horiAdvance; + advance.y = 0; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->horiAdvance = advance.x + font_offset.x; + advance.x = 0; + advance.y = metrics->vertAdvance; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->vertAdvance = advance.y + font_offset.y; +#endif + + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + /* scale the outline and the metrics */ + FT_Int n; + FT_Outline* cur = decoder.builder.base; + FT_Vector* vec = cur->points; + FT_Fixed x_scale = glyph->x_scale; + FT_Fixed y_scale = glyph->y_scale; + + + /* First of all, scale the points, if we are not hinting */ + if ( !hinting || ! decoder.builder.hints_funcs ) + for ( n = cur->n_points; n > 0; n--, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* Then scale the metrics */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the other metrics */ + FT_Outline_Get_CBox( &glyph->root.outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + /* make up vertical ones */ + ft_synthesize_vertical_metrics( metrics, + metrics->vertAdvance ); + } + } + + /* Set control data to the glyph charstrings. Note that this is */ + /* _not_ zero-terminated. */ + glyph->root.control_data = (FT_Byte*)glyph_data.pointer; + glyph->root.control_len = glyph_data.length; + } + + + Exit: + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( glyph_data_loaded && face->root.internal->incremental_interface ) + { + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, + &glyph_data ); + + /* Set the control data to null - it is no longer available if */ + /* loaded incrementally. */ + glyph->root.control_data = 0; + glyph->root.control_len = 0; + } +#endif + + if ( must_finish_decoder ) + decoder_funcs->done( &decoder ); + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1gload.h b/uppsrc/plugin/FT_fontsys/src/type1/t1gload.h new file mode 100644 index 000000000..f5330e953 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1gload.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* t1gload.h */ +/* */ +/* Type 1 Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1GLOAD_H__ +#define __T1GLOAD_H__ + + +#include <freetype/ft2build.h> +#include "t1objs.h" + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + T1_Compute_Max_Advance( T1_Face face, + FT_Pos* max_advance ); + + FT_LOCAL( FT_Error ) + T1_Get_Advances( T1_Face face, + FT_UInt first, + FT_UInt count, + FT_ULong load_flags, + FT_Fixed* advances ); + + FT_LOCAL( FT_Error ) + T1_Load_Glyph( T1_GlyphSlot glyph, + T1_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __T1GLOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1load.c b/uppsrc/plugin/FT_fontsys/src/type1/t1load.c new file mode 100644 index 000000000..4469f4d8b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1load.c @@ -0,0 +1,2239 @@ +/***************************************************************************/ +/* */ +/* t1load.c */ +/* */ +/* Type 1 font loader (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This is the new and improved Type 1 data loader for FreeType 2. The */ + /* old loader has several problems: it is slow, complex, difficult to */ + /* maintain, and contains incredible hacks to make it accept some */ + /* ill-formed Type 1 fonts without hiccup-ing. Moreover, about 5% of */ + /* the Type 1 fonts on my machine still aren't loaded correctly by it. */ + /* */ + /* This version is much simpler, much faster and also easier to read and */ + /* maintain by a great order of magnitude. The idea behind it is to */ + /* _not_ try to read the Type 1 token stream with a state machine (i.e. */ + /* a Postscript-like interpreter) but rather to perform simple pattern */ + /* matching. */ + /* */ + /* Indeed, nearly all data definitions follow a simple pattern like */ + /* */ + /* ... /Field <data> ... */ + /* */ + /* where <data> can be a number, a boolean, a string, or an array of */ + /* numbers. There are a few exceptions, namely the encoding, font name, */ + /* charstrings, and subrs; they are handled with a special pattern */ + /* matching routine. */ + /* */ + /* All other common cases are handled very simply. The matching rules */ + /* are defined in the file `t1tokens.h' through the use of several */ + /* macros calls PARSE_XXX. This file is included twice here; the first */ + /* time to generate parsing callback functions, the second time to */ + /* generate a table of keywords (with pointers to the associated */ + /* callback functions). */ + /* */ + /* The function `parse_dict' simply scans *linearly* a given dictionary */ + /* (either the top-level or private one) and calls the appropriate */ + /* callback when it encounters an immediate keyword. */ + /* */ + /* This is by far the fastest way one can find to parse and read all */ + /* data. */ + /* */ + /* This led to tremendous code size reduction. Note that later, the */ + /* glyph loader will also be _greatly_ simplified, and the automatic */ + /* hinter will replace the clumsy `t1hinter'. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_CALC_H + +#include "t1load.h" +#include "t1errors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1load + + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MULTIPLE MASTERS SUPPORT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + t1_allocate_blend( T1_Face face, + FT_UInt num_designs, + FT_UInt num_axis ) + { + PS_Blend blend; + FT_Memory memory = face->root.memory; + FT_Error error = T1_Err_Ok; + + + blend = face->blend; + if ( !blend ) + { + if ( FT_NEW( blend ) ) + goto Exit; + + blend->num_default_design_vector = 0; + + face->blend = blend; + } + + /* allocate design data if needed */ + if ( num_designs > 0 ) + { + if ( blend->num_designs == 0 ) + { + FT_UInt nn; + + + /* allocate the blend `private' and `font_info' dictionaries */ + if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) || + FT_NEW_ARRAY( blend->privates[1], num_designs ) || + FT_NEW_ARRAY( blend->bboxes[1], num_designs ) || + FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) ) + goto Exit; + + blend->default_weight_vector = blend->weight_vector + num_designs; + + blend->font_infos[0] = &face->type1.font_info; + blend->privates [0] = &face->type1.private_dict; + blend->bboxes [0] = &face->type1.font_bbox; + + for ( nn = 2; nn <= num_designs; nn++ ) + { + blend->privates[nn] = blend->privates [nn - 1] + 1; + blend->font_infos[nn] = blend->font_infos[nn - 1] + 1; + blend->bboxes[nn] = blend->bboxes [nn - 1] + 1; + } + + blend->num_designs = num_designs; + } + else if ( blend->num_designs != num_designs ) + goto Fail; + } + + /* allocate axis data if needed */ + if ( num_axis > 0 ) + { + if ( blend->num_axis != 0 && blend->num_axis != num_axis ) + goto Fail; + + blend->num_axis = num_axis; + } + + /* allocate the blend design pos table if needed */ + num_designs = blend->num_designs; + num_axis = blend->num_axis; + if ( num_designs && num_axis && blend->design_pos[0] == 0 ) + { + FT_UInt n; + + + if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) ) + goto Exit; + + for ( n = 1; n < num_designs; n++ ) + blend->design_pos[n] = blend->design_pos[0] + num_axis * n; + } + + Exit: + return error; + + Fail: + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Multi_Master( T1_Face face, + FT_Multi_Master* master ) + { + PS_Blend blend = face->blend; + FT_UInt n; + FT_Error error; + + + error = T1_Err_Invalid_Argument; + + if ( blend ) + { + master->num_axis = blend->num_axis; + master->num_designs = blend->num_designs; + + for ( n = 0; n < blend->num_axis; n++ ) + { + FT_MM_Axis* axis = master->axis + n; + PS_DesignMap map = blend->design_map + n; + + + axis->name = blend->axis_names[n]; + axis->minimum = map->design_points[0]; + axis->maximum = map->design_points[map->num_points - 1]; + } + + error = T1_Err_Ok; + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* Given a normalized (blend) coordinate, figure out the design */ + /* coordinate appropriate for that value. */ + /* */ + FT_LOCAL_DEF( FT_Fixed ) + mm_axis_unmap( PS_DesignMap axismap, + FT_Fixed ncv ) + { + int j; + + + if ( ncv <= axismap->blend_points[0] ) + return INT_TO_FIXED( axismap->design_points[0] ); + + for ( j = 1; j < axismap->num_points; ++j ) + { + if ( ncv <= axismap->blend_points[j] ) + { + FT_Fixed t = FT_MulDiv( ncv - axismap->blend_points[j - 1], + 0x10000L, + axismap->blend_points[j] - + axismap->blend_points[j - 1] ); + + return INT_TO_FIXED( axismap->design_points[j - 1] ) + + FT_MulDiv( t, + axismap->design_points[j] - + axismap->design_points[j - 1], + 1L ); + } + } + + return INT_TO_FIXED( axismap->design_points[axismap->num_points - 1] ); + } + + + /*************************************************************************/ + /* */ + /* Given a vector of weights, one for each design, figure out the */ + /* normalized axis coordinates which gave rise to those weights. */ + /* */ + FT_LOCAL_DEF( void ) + mm_weights_unmap( FT_Fixed* weights, + FT_Fixed* axiscoords, + FT_UInt axis_count ) + { + FT_ASSERT( axis_count <= T1_MAX_MM_AXIS ); + + if ( axis_count == 1 ) + axiscoords[0] = weights[1]; + + else if ( axis_count == 2 ) + { + axiscoords[0] = weights[3] + weights[1]; + axiscoords[1] = weights[3] + weights[2]; + } + + else if ( axis_count == 3 ) + { + axiscoords[0] = weights[7] + weights[5] + weights[3] + weights[1]; + axiscoords[1] = weights[7] + weights[6] + weights[3] + weights[2]; + axiscoords[2] = weights[7] + weights[6] + weights[5] + weights[4]; + } + + else + { + axiscoords[0] = weights[15] + weights[13] + weights[11] + weights[9] + + weights[7] + weights[5] + weights[3] + weights[1]; + axiscoords[1] = weights[15] + weights[14] + weights[11] + weights[10] + + weights[7] + weights[6] + weights[3] + weights[2]; + axiscoords[2] = weights[15] + weights[14] + weights[13] + weights[12] + + weights[7] + weights[6] + weights[5] + weights[4]; + axiscoords[3] = weights[15] + weights[14] + weights[13] + weights[12] + + weights[11] + weights[10] + weights[9] + weights[8]; + } + } + + + /*************************************************************************/ + /* */ + /* Just a wrapper around T1_Get_Multi_Master to support the different */ + /* arguments needed by the GX var distortable fonts. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Get_MM_Var( T1_Face face, + FT_MM_Var* *master ) + { + FT_Memory memory = face->root.memory; + FT_MM_Var *mmvar = NULL; + FT_Multi_Master mmaster; + FT_Error error; + FT_UInt i; + FT_Fixed axiscoords[T1_MAX_MM_AXIS]; + PS_Blend blend = face->blend; + + + error = T1_Get_Multi_Master( face, &mmaster ); + if ( error ) + goto Exit; + if ( FT_ALLOC( mmvar, + sizeof ( FT_MM_Var ) + + mmaster.num_axis * sizeof ( FT_Var_Axis ) ) ) + goto Exit; + + mmvar->num_axis = mmaster.num_axis; + mmvar->num_designs = mmaster.num_designs; + mmvar->num_namedstyles = (FT_UInt)-1; /* Does not apply */ + mmvar->axis = (FT_Var_Axis*)&mmvar[1]; + /* Point to axes after MM_Var struct */ + mmvar->namedstyle = NULL; + + for ( i = 0 ; i < mmaster.num_axis; ++i ) + { + mmvar->axis[i].name = mmaster.axis[i].name; + mmvar->axis[i].minimum = INT_TO_FIXED( mmaster.axis[i].minimum); + mmvar->axis[i].maximum = INT_TO_FIXED( mmaster.axis[i].maximum); + mmvar->axis[i].def = ( mmvar->axis[i].minimum + + mmvar->axis[i].maximum ) / 2; + /* Does not apply. But this value is in range */ + mmvar->axis[i].strid = (FT_UInt)-1; /* Does not apply */ + mmvar->axis[i].tag = (FT_ULong)-1; /* Does not apply */ + + if ( ft_strcmp( mmvar->axis[i].name, "Weight" ) == 0 ) + mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'g', 'h', 't' ); + else if ( ft_strcmp( mmvar->axis[i].name, "Width" ) == 0 ) + mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'd', 't', 'h' ); + else if ( ft_strcmp( mmvar->axis[i].name, "OpticalSize" ) == 0 ) + mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' ); + } + + if ( blend->num_designs == ( 1U << blend->num_axis ) ) + { + mm_weights_unmap( blend->default_weight_vector, + axiscoords, + blend->num_axis ); + + for ( i = 0; i < mmaster.num_axis; ++i ) + mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i], + axiscoords[i] ); + } + + *master = mmvar; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Set_MM_Blend( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + PS_Blend blend = face->blend; + FT_Error error; + FT_UInt n, m; + + + error = T1_Err_Invalid_Argument; + + if ( blend && blend->num_axis == num_coords ) + { + /* recompute the weight vector from the blend coordinates */ + error = T1_Err_Ok; + + for ( n = 0; n < blend->num_designs; n++ ) + { + FT_Fixed result = 0x10000L; /* 1.0 fixed */ + + + for ( m = 0; m < blend->num_axis; m++ ) + { + FT_Fixed factor; + + + /* get current blend axis position */ + factor = coords[m]; + if ( factor < 0 ) factor = 0; + if ( factor > 0x10000L ) factor = 0x10000L; + + if ( ( n & ( 1 << m ) ) == 0 ) + factor = 0x10000L - factor; + + result = FT_MulFix( result, factor ); + } + blend->weight_vector[n] = result; + } + + error = T1_Err_Ok; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Set_MM_Design( T1_Face face, + FT_UInt num_coords, + FT_Long* coords ) + { + PS_Blend blend = face->blend; + FT_Error error; + FT_UInt n, p; + + + error = T1_Err_Invalid_Argument; + if ( blend && blend->num_axis == num_coords ) + { + /* compute the blend coordinates through the blend design map */ + FT_Fixed final_blends[T1_MAX_MM_DESIGNS]; + + + for ( n = 0; n < blend->num_axis; n++ ) + { + FT_Long design = coords[n]; + FT_Fixed the_blend; + PS_DesignMap map = blend->design_map + n; + FT_Long* designs = map->design_points; + FT_Fixed* blends = map->blend_points; + FT_Int before = -1, after = -1; + + + for ( p = 0; p < (FT_UInt)map->num_points; p++ ) + { + FT_Long p_design = designs[p]; + + + /* exact match? */ + if ( design == p_design ) + { + the_blend = blends[p]; + goto Found; + } + + if ( design < p_design ) + { + after = p; + break; + } + + before = p; + } + + /* now interpolate if necessary */ + if ( before < 0 ) + the_blend = blends[0]; + + else if ( after < 0 ) + the_blend = blends[map->num_points - 1]; + + else + the_blend = FT_MulDiv( design - designs[before], + blends [after] - blends [before], + designs[after] - designs[before] ); + + Found: + final_blends[n] = the_blend; + } + + error = T1_Set_MM_Blend( face, num_coords, final_blends ); + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* Just a wrapper around T1_Set_MM_Design to support the different */ + /* arguments needed by the GX var distortable fonts. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Set_Var_Design( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Long lcoords[4]; /* maximum axis count is 4 */ + FT_UInt i; + FT_Error error; + + + error = T1_Err_Invalid_Argument; + if ( num_coords <= 4 && num_coords > 0 ) + { + for ( i = 0; i < num_coords; ++i ) + lcoords[i] = FIXED_TO_INT( coords[i] ); + error = T1_Set_MM_Design( face, num_coords, lcoords ); + } + + return error; + } + + + FT_LOCAL_DEF( void ) + T1_Done_Blend( T1_Face face ) + { + FT_Memory memory = face->root.memory; + PS_Blend blend = face->blend; + + + if ( blend ) + { + FT_UInt num_designs = blend->num_designs; + FT_UInt num_axis = blend->num_axis; + FT_UInt n; + + + /* release design pos table */ + FT_FREE( blend->design_pos[0] ); + for ( n = 1; n < num_designs; n++ ) + blend->design_pos[n] = 0; + + /* release blend `private' and `font info' dictionaries */ + FT_FREE( blend->privates[1] ); + FT_FREE( blend->font_infos[1] ); + FT_FREE( blend->bboxes[1] ); + + for ( n = 0; n < num_designs; n++ ) + { + blend->privates [n] = 0; + blend->font_infos[n] = 0; + blend->bboxes [n] = 0; + } + + /* release weight vectors */ + FT_FREE( blend->weight_vector ); + blend->default_weight_vector = 0; + + /* release axis names */ + for ( n = 0; n < num_axis; n++ ) + FT_FREE( blend->axis_names[n] ); + + /* release design map */ + for ( n = 0; n < num_axis; n++ ) + { + PS_DesignMap dmap = blend->design_map + n; + + + FT_FREE( dmap->design_points ); + dmap->num_points = 0; + } + + FT_FREE( face->blend ); + } + } + + + static void + parse_blend_axis_types( T1_Face face, + T1_Loader loader ) + { + T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; + FT_Int n, num_axis; + FT_Error error = T1_Err_Ok; + PS_Blend blend; + FT_Memory memory; + + + /* take an array of objects */ + T1_ToTokenArray( &loader->parser, axis_tokens, + T1_MAX_MM_AXIS, &num_axis ); + if ( num_axis < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS ) + { + FT_ERROR(( "parse_blend_axis_types: incorrect number of axes: %d\n", + num_axis )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + /* allocate blend if necessary */ + error = t1_allocate_blend( face, 0, (FT_UInt)num_axis ); + if ( error ) + goto Exit; + + blend = face->blend; + memory = face->root.memory; + + /* each token is an immediate containing the name of the axis */ + for ( n = 0; n < num_axis; n++ ) + { + T1_Token token = axis_tokens + n; + FT_Byte* name; + FT_PtrDist len; + + + /* skip first slash, if any */ + if ( token->start[0] == '/' ) + token->start++; + + len = token->limit - token->start; + if ( len == 0 ) + { + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_ALLOC( blend->axis_names[n], len + 1 ) ) + goto Exit; + + name = (FT_Byte*)blend->axis_names[n]; + FT_MEM_COPY( name, token->start, len ); + name[len] = 0; + } + + Exit: + loader->parser.root.error = error; + } + + + static void + parse_blend_design_positions( T1_Face face, + T1_Loader loader ) + { + T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; + FT_Int num_designs; + FT_Int num_axis; + T1_Parser parser = &loader->parser; + + FT_Error error = T1_Err_Ok; + PS_Blend blend; + + + /* get the array of design tokens -- compute number of designs */ + T1_ToTokenArray( parser, design_tokens, + T1_MAX_MM_DESIGNS, &num_designs ); + if ( num_designs < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS ) + { + FT_ERROR(( "parse_blend_design_positions:" + " incorrect number of designs: %d\n", + num_designs )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + { + FT_Byte* old_cursor = parser->root.cursor; + FT_Byte* old_limit = parser->root.limit; + FT_Int n; + + + blend = face->blend; + num_axis = 0; /* make compiler happy */ + + for ( n = 0; n < num_designs; n++ ) + { + T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; + T1_Token token; + FT_Int axis, n_axis; + + + /* read axis/coordinates tokens */ + token = design_tokens + n; + parser->root.cursor = token->start; + parser->root.limit = token->limit; + T1_ToTokenArray( parser, axis_tokens, T1_MAX_MM_AXIS, &n_axis ); + + if ( n == 0 ) + { + if ( n_axis <= 0 || n_axis > T1_MAX_MM_AXIS ) + { + FT_ERROR(( "parse_blend_design_positions:" + " invalid number of axes: %d\n", + n_axis )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + num_axis = n_axis; + error = t1_allocate_blend( face, num_designs, num_axis ); + if ( error ) + goto Exit; + blend = face->blend; + } + else if ( n_axis != num_axis ) + { + FT_ERROR(( "parse_blend_design_positions: incorrect table\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + /* now read each axis token into the design position */ + for ( axis = 0; axis < n_axis; axis++ ) + { + T1_Token token2 = axis_tokens + axis; + + + parser->root.cursor = token2->start; + parser->root.limit = token2->limit; + blend->design_pos[n][axis] = T1_ToFixed( parser, 0 ); + } + } + + loader->parser.root.cursor = old_cursor; + loader->parser.root.limit = old_limit; + } + + Exit: + loader->parser.root.error = error; + } + + + static void + parse_blend_design_map( T1_Face face, + T1_Loader loader ) + { + FT_Error error = T1_Err_Ok; + T1_Parser parser = &loader->parser; + PS_Blend blend; + T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; + FT_Int n, num_axis; + FT_Byte* old_cursor; + FT_Byte* old_limit; + FT_Memory memory = face->root.memory; + + + T1_ToTokenArray( parser, axis_tokens, + T1_MAX_MM_AXIS, &num_axis ); + if ( num_axis < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS ) + { + FT_ERROR(( "parse_blend_design_map: incorrect number of axes: %d\n", + num_axis )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + old_cursor = parser->root.cursor; + old_limit = parser->root.limit; + + error = t1_allocate_blend( face, 0, num_axis ); + if ( error ) + goto Exit; + blend = face->blend; + + /* now read each axis design map */ + for ( n = 0; n < num_axis; n++ ) + { + PS_DesignMap map = blend->design_map + n; + T1_Token axis_token; + T1_TokenRec point_tokens[T1_MAX_MM_MAP_POINTS]; + FT_Int p, num_points; + + + axis_token = axis_tokens + n; + + parser->root.cursor = axis_token->start; + parser->root.limit = axis_token->limit; + T1_ToTokenArray( parser, point_tokens, + T1_MAX_MM_MAP_POINTS, &num_points ); + + if ( num_points <= 0 || num_points > T1_MAX_MM_MAP_POINTS ) + { + FT_ERROR(( "parse_blend_design_map: incorrect table\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + /* allocate design map data */ + if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) ) + goto Exit; + map->blend_points = map->design_points + num_points; + map->num_points = (FT_Byte)num_points; + + for ( p = 0; p < num_points; p++ ) + { + T1_Token point_token; + + + point_token = point_tokens + p; + + /* don't include delimiting brackets */ + parser->root.cursor = point_token->start + 1; + parser->root.limit = point_token->limit - 1; + + map->design_points[p] = T1_ToInt( parser ); + map->blend_points [p] = T1_ToFixed( parser, 0 ); + } + } + + parser->root.cursor = old_cursor; + parser->root.limit = old_limit; + + Exit: + parser->root.error = error; + } + + + static void + parse_weight_vector( T1_Face face, + T1_Loader loader ) + { + T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; + FT_Int num_designs; + FT_Error error = T1_Err_Ok; + T1_Parser parser = &loader->parser; + PS_Blend blend = face->blend; + T1_Token token; + FT_Int n; + FT_Byte* old_cursor; + FT_Byte* old_limit; + + + T1_ToTokenArray( parser, design_tokens, + T1_MAX_MM_DESIGNS, &num_designs ); + if ( num_designs < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS ) + { + FT_ERROR(( "parse_weight_vector:" + " incorrect number of designs: %d\n", + num_designs )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + if ( !blend || !blend->num_designs ) + { + error = t1_allocate_blend( face, num_designs, 0 ); + if ( error ) + goto Exit; + blend = face->blend; + } + else if ( blend->num_designs != (FT_UInt)num_designs ) + { + FT_ERROR(( "parse_weight_vector:" + " /BlendDesignPosition and /WeightVector have\n" + " " + " different number of elements\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + old_cursor = parser->root.cursor; + old_limit = parser->root.limit; + + for ( n = 0; n < num_designs; n++ ) + { + token = design_tokens + n; + parser->root.cursor = token->start; + parser->root.limit = token->limit; + + blend->default_weight_vector[n] = + blend->weight_vector[n] = T1_ToFixed( parser, 0 ); + } + + parser->root.cursor = old_cursor; + parser->root.limit = old_limit; + + Exit: + parser->root.error = error; + } + + + /* e.g., /BuildCharArray [0 0 0 0 0 0 0 0] def */ + /* we're only interested in the number of array elements */ + static void + parse_buildchar( T1_Face face, + T1_Loader loader ) + { + face->len_buildchar = T1_ToFixedArray( &loader->parser, 0, NULL, 0 ); + + return; + } + + +#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 1 SYMBOL PARSING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + t1_load_keyword( T1_Face face, + T1_Loader loader, + const T1_Field field ) + { + FT_Error error; + void* dummy_object; + void** objects; + FT_UInt max_objects; + PS_Blend blend = face->blend; + + + if ( blend && blend->num_designs == 0 ) + blend = NULL; + + /* if the keyword has a dedicated callback, call it */ + if ( field->type == T1_FIELD_TYPE_CALLBACK ) + { + field->reader( (FT_Face)face, loader ); + error = loader->parser.root.error; + goto Exit; + } + + /* now, the keyword is either a simple field, or a table of fields; */ + /* we are now going to take care of it */ + switch ( field->location ) + { + case T1_FIELD_LOCATION_FONT_INFO: + dummy_object = &face->type1.font_info; + objects = &dummy_object; + max_objects = 0; + + if ( blend ) + { + objects = (void**)blend->font_infos; + max_objects = blend->num_designs; + } + break; + + case T1_FIELD_LOCATION_FONT_EXTRA: + dummy_object = &face->type1.font_extra; + objects = &dummy_object; + max_objects = 0; + break; + + case T1_FIELD_LOCATION_PRIVATE: + dummy_object = &face->type1.private_dict; + objects = &dummy_object; + max_objects = 0; + + if ( blend ) + { + objects = (void**)blend->privates; + max_objects = blend->num_designs; + } + break; + + case T1_FIELD_LOCATION_BBOX: + dummy_object = &face->type1.font_bbox; + objects = &dummy_object; + max_objects = 0; + + if ( blend ) + { + objects = (void**)blend->bboxes; + max_objects = blend->num_designs; + } + break; + + case T1_FIELD_LOCATION_LOADER: + dummy_object = loader; + objects = &dummy_object; + max_objects = 0; + break; + + case T1_FIELD_LOCATION_FACE: + dummy_object = face; + objects = &dummy_object; + max_objects = 0; + break; + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + case T1_FIELD_LOCATION_BLEND: + dummy_object = face->blend; + objects = &dummy_object; + max_objects = 0; + break; +#endif + + default: + dummy_object = &face->type1; + objects = &dummy_object; + max_objects = 0; + } + + if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY || + field->type == T1_FIELD_TYPE_FIXED_ARRAY ) + error = T1_Load_Field_Table( &loader->parser, field, + objects, max_objects, 0 ); + else + error = T1_Load_Field( &loader->parser, field, + objects, max_objects, 0 ); + + Exit: + return error; + } + + + static void + parse_private( T1_Face face, + T1_Loader loader ) + { + FT_UNUSED( face ); + + loader->keywords_encountered |= T1_PRIVATE; + } + + + static int + read_binary_data( T1_Parser parser, + FT_Long* size, + FT_Byte** base ) + { + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + + + /* the binary data has one of the following formats */ + /* */ + /* `size' [white*] RD white ....... ND */ + /* `size' [white*] -| white ....... |- */ + /* */ + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + + if ( cur < limit && ft_isdigit( *cur ) ) + { + FT_Long s = T1_ToInt( parser ); + + + T1_Skip_PS_Token( parser ); /* `RD' or `-|' or something else */ + + /* there is only one whitespace char after the */ + /* `RD' or `-|' token */ + *base = parser->root.cursor + 1; + + if ( s >= 0 && s < limit - *base ) + { + parser->root.cursor += s + 1; + *size = s; + return !parser->root.error; + } + } + + FT_ERROR(( "read_binary_data: invalid size field\n" )); + parser->root.error = T1_Err_Invalid_File_Format; + return 0; + } + + + /* We now define the routines to handle the `/Encoding', `/Subrs', */ + /* and `/CharStrings' dictionaries. */ + + static void + parse_font_matrix( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + FT_Matrix* matrix = &face->type1.font_matrix; + FT_Vector* offset = &face->type1.font_offset; + FT_Face root = (FT_Face)&face->root; + FT_Fixed temp[6]; + FT_Fixed temp_scale; + FT_Int result; + + + result = T1_ToFixedArray( parser, 6, temp, 3 ); + + if ( result < 0 ) + { + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + temp_scale = FT_ABS( temp[3] ); + + if ( temp_scale == 0 ) + { + FT_ERROR(( "parse_font_matrix: invalid font matrix\n" )); + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + /* Set Units per EM based on FontMatrix values. We set the value to */ + /* 1000 / temp_scale, because temp_scale was already multiplied by */ + /* 1000 (in t1_tofixed, from psobjs.c). */ + + root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L, + temp_scale ) >> 16 ); + + /* we need to scale the values by 1.0/temp_scale */ + if ( temp_scale != 0x10000L ) + { + temp[0] = FT_DivFix( temp[0], temp_scale ); + temp[1] = FT_DivFix( temp[1], temp_scale ); + temp[2] = FT_DivFix( temp[2], temp_scale ); + temp[4] = FT_DivFix( temp[4], temp_scale ); + temp[5] = FT_DivFix( temp[5], temp_scale ); + temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L; + } + + matrix->xx = temp[0]; + matrix->yx = temp[1]; + matrix->xy = temp[2]; + matrix->yy = temp[3]; + + /* note that the offsets must be expressed in integer font units */ + offset->x = temp[4] >> 16; + offset->y = temp[5] >> 16; + } + + + static void + parse_encoding( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + T1_Skip_Spaces( parser ); + cur = parser->root.cursor; + if ( cur >= limit ) + { + FT_ERROR(( "parse_encoding: out of bounds\n" )); + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + /* if we have a number or `[', the encoding is an array, */ + /* and we must load it now */ + if ( ft_isdigit( *cur ) || *cur == '[' ) + { + T1_Encoding encode = &face->type1.encoding; + FT_Int count, n; + PS_Table char_table = &loader->encoding_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + FT_Bool only_immediates = 0; + + + /* read the number of entries in the encoding; should be 256 */ + if ( *cur == '[' ) + { + count = 256; + only_immediates = 1; + parser->root.cursor++; + } + else + count = (FT_Int)T1_ToInt( parser ); + + T1_Skip_Spaces( parser ); + if ( parser->root.cursor >= limit ) + return; + + /* we use a T1_Table to store our charnames */ + loader->num_chars = encode->num_chars = count; + if ( FT_NEW_ARRAY( encode->char_index, count ) || + FT_NEW_ARRAY( encode->char_name, count ) || + FT_SET_ERROR( psaux->ps_table_funcs->init( + char_table, count, memory ) ) ) + { + parser->root.error = error; + return; + } + + /* We need to `zero' out encoding_table.elements */ + for ( n = 0; n < count; n++ ) + { + char* notdef = (char *)".notdef"; + + + T1_Add_Table( char_table, n, notdef, 8 ); + } + + /* Now we need to read records of the form */ + /* */ + /* ... charcode /charname ... */ + /* */ + /* for each entry in our table. */ + /* */ + /* We simply look for a number followed by an immediate */ + /* name. Note that this ignores correctly the sequence */ + /* that is often seen in type1 fonts: */ + /* */ + /* 0 1 255 { 1 index exch /.notdef put } for dup */ + /* */ + /* used to clean the encoding array before anything else. */ + /* */ + /* Alternatively, if the array is directly given as */ + /* */ + /* /Encoding [ ... ] */ + /* */ + /* we only read immediates. */ + + n = 0; + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + cur = parser->root.cursor; + + /* we stop when we encounter a `def' or `]' */ + if ( *cur == 'd' && cur + 3 < limit ) + { + if ( cur[1] == 'e' && + cur[2] == 'f' && + IS_PS_DELIM( cur[3] ) ) + { + FT_TRACE6(( "encoding end\n" )); + cur += 3; + break; + } + } + if ( *cur == ']' ) + { + FT_TRACE6(( "encoding end\n" )); + cur++; + break; + } + + /* check whether we've found an entry */ + if ( ft_isdigit( *cur ) || only_immediates ) + { + FT_Int charcode; + + + if ( only_immediates ) + charcode = n; + else + { + charcode = (FT_Int)T1_ToInt( parser ); + T1_Skip_Spaces( parser ); + } + + cur = parser->root.cursor; + + if ( *cur == '/' && cur + 2 < limit && n < count ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + len = parser->root.cursor - cur; + + parser->root.error = T1_Add_Table( char_table, charcode, + cur, len + 1 ); + if ( parser->root.error ) + return; + char_table->elements[charcode][len] = '\0'; + + n++; + } + else if ( only_immediates ) + { + /* Since the current position is not updated for */ + /* immediates-only mode we would get an infinite loop if */ + /* we don't do anything here. */ + /* */ + /* This encoding array is not valid according to the type1 */ + /* specification (it might be an encoding for a CID type1 */ + /* font, however), so we conclude that this font is NOT a */ + /* type1 font. */ + parser->root.error = FT_Err_Unknown_File_Format; + return; + } + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + } + + T1_Skip_Spaces( parser ); + } + + face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY; + parser->root.cursor = cur; + } + + /* Otherwise, we should have either `StandardEncoding', */ + /* `ExpertEncoding', or `ISOLatin1Encoding' */ + else + { + if ( cur + 17 < limit && + ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD; + + else if ( cur + 15 < limit && + ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT; + + else if ( cur + 18 < limit && + ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1; + + else + parser->root.error = T1_Err_Ignore; + } + } + + + static void + parse_subrs( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + PS_Table table = &loader->subrs; + FT_Memory memory = parser->root.memory; + FT_Error error; + FT_Int num_subrs; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + T1_Skip_Spaces( parser ); + + /* test for empty array */ + if ( parser->root.cursor < parser->root.limit && + *parser->root.cursor == '[' ) + { + T1_Skip_PS_Token( parser ); + T1_Skip_Spaces ( parser ); + if ( parser->root.cursor >= parser->root.limit || + *parser->root.cursor != ']' ) + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + num_subrs = (FT_Int)T1_ToInt( parser ); + + /* position the parser right before the `dup' of the first subr */ + T1_Skip_PS_Token( parser ); /* `array' */ + if ( parser->root.error ) + return; + T1_Skip_Spaces( parser ); + + /* initialize subrs array -- with synthetic fonts it is possible */ + /* we get here twice */ + if ( !loader->num_subrs ) + { + error = psaux->ps_table_funcs->init( table, num_subrs, memory ); + if ( error ) + goto Fail; + } + + /* the format is simple: */ + /* */ + /* `index' + binary data */ + /* */ + for (;;) + { + FT_Long idx, size; + FT_Byte* base; + + + /* If the next token isn't `dup' we are done. */ + if ( ft_strncmp( (char*)parser->root.cursor, "dup", 3 ) != 0 ) + break; + + T1_Skip_PS_Token( parser ); /* `dup' */ + + idx = T1_ToInt( parser ); + + if ( !read_binary_data( parser, &size, &base ) ) + return; + + /* The binary string is followed by one token, e.g. `NP' */ + /* (bound to `noaccess put') or by two separate tokens: */ + /* `noaccess' & `put'. We position the parser right */ + /* before the next `dup', if any. */ + T1_Skip_PS_Token( parser ); /* `NP' or `|' or `noaccess' */ + if ( parser->root.error ) + return; + T1_Skip_Spaces ( parser ); + + if ( ft_strncmp( (char*)parser->root.cursor, "put", 3 ) == 0 ) + { + T1_Skip_PS_Token( parser ); /* skip `put' */ + T1_Skip_Spaces ( parser ); + } + + /* with synthetic fonts it is possible we get here twice */ + if ( loader->num_subrs ) + continue; + + /* some fonts use a value of -1 for lenIV to indicate that */ + /* the charstrings are unencoded */ + /* */ + /* thanks to Tom Kacvinsky for pointing this out */ + /* */ + if ( face->type1.private_dict.lenIV >= 0 ) + { + FT_Byte* temp; + + + /* some fonts define empty subr records -- this is not totally */ + /* compliant to the specification (which says they should at */ + /* least contain a `return'), but we support them anyway */ + if ( size < face->type1.private_dict.lenIV ) + { + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + /* t1_decrypt() shouldn't write to base -- make temporary copy */ + if ( FT_ALLOC( temp, size ) ) + goto Fail; + FT_MEM_COPY( temp, base, size ); + psaux->t1_decrypt( temp, size, 4330 ); + size -= face->type1.private_dict.lenIV; + error = T1_Add_Table( table, (FT_Int)idx, + temp + face->type1.private_dict.lenIV, size ); + FT_FREE( temp ); + } + else + error = T1_Add_Table( table, (FT_Int)idx, base, size ); + if ( error ) + goto Fail; + } + + if ( !loader->num_subrs ) + loader->num_subrs = num_subrs; + + return; + + Fail: + parser->root.error = error; + } + + +#define TABLE_EXTEND 5 + + + static void + parse_charstrings( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + PS_Table code_table = &loader->charstrings; + PS_Table name_table = &loader->glyph_names; + PS_Table swap_table = &loader->swap_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + FT_Int n, num_glyphs; + FT_UInt notdef_index = 0; + FT_Byte notdef_found = 0; + + + num_glyphs = (FT_Int)T1_ToInt( parser ); + /* some fonts like Optima-Oblique not only define the /CharStrings */ + /* array but access it also */ + if ( num_glyphs == 0 || parser->root.error ) + return; + + /* initialize tables, leaving space for addition of .notdef, */ + /* if necessary, and a few other glyphs to handle buggy */ + /* fonts which have more glyphs than specified. */ + + /* for some non-standard fonts like `Optima' which provides */ + /* different outlines depending on the resolution it is */ + /* possible to get here twice */ + if ( !loader->num_glyphs ) + { + error = psaux->ps_table_funcs->init( + code_table, num_glyphs + 1 + TABLE_EXTEND, memory ); + if ( error ) + goto Fail; + + error = psaux->ps_table_funcs->init( + name_table, num_glyphs + 1 + TABLE_EXTEND, memory ); + if ( error ) + goto Fail; + + /* Initialize table for swapping index notdef_index and */ + /* index 0 names and codes (if necessary). */ + + error = psaux->ps_table_funcs->init( swap_table, 4, memory ); + if ( error ) + goto Fail; + } + + n = 0; + + for (;;) + { + FT_Long size; + FT_Byte* base; + + + /* the format is simple: */ + /* `/glyphname' + binary data */ + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + if ( cur >= limit ) + break; + + /* we stop when we find a `def' or `end' keyword */ + if ( cur + 3 < limit && IS_PS_DELIM( cur[3] ) ) + { + if ( cur[0] == 'd' && + cur[1] == 'e' && + cur[2] == 'f' ) + { + /* There are fonts which have this: */ + /* */ + /* /CharStrings 118 dict def */ + /* Private begin */ + /* CharStrings begin */ + /* ... */ + /* */ + /* To catch this we ignore `def' if */ + /* no charstring has actually been */ + /* seen. */ + if ( n ) + break; + } + + if ( cur[0] == 'e' && + cur[1] == 'n' && + cur[2] == 'd' ) + break; + } + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + if ( *cur == '/' ) + { + FT_PtrDist len; + + + if ( cur + 1 >= limit ) + { + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + cur++; /* skip `/' */ + len = parser->root.cursor - cur; + + if ( !read_binary_data( parser, &size, &base ) ) + return; + + /* for some non-standard fonts like `Optima' which provides */ + /* different outlines depending on the resolution it is */ + /* possible to get here twice */ + if ( loader->num_glyphs ) + continue; + + error = T1_Add_Table( name_table, n, cur, len + 1 ); + if ( error ) + goto Fail; + + /* add a trailing zero to the name table */ + name_table->elements[n][len] = '\0'; + + /* record index of /.notdef */ + if ( *cur == '.' && + ft_strcmp( ".notdef", + (const char*)(name_table->elements[n]) ) == 0 ) + { + notdef_index = n; + notdef_found = 1; + } + + if ( face->type1.private_dict.lenIV >= 0 && + n < num_glyphs + TABLE_EXTEND ) + { + FT_Byte* temp; + + + if ( size <= face->type1.private_dict.lenIV ) + { + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + /* t1_decrypt() shouldn't write to base -- make temporary copy */ + if ( FT_ALLOC( temp, size ) ) + goto Fail; + FT_MEM_COPY( temp, base, size ); + psaux->t1_decrypt( temp, size, 4330 ); + size -= face->type1.private_dict.lenIV; + error = T1_Add_Table( code_table, n, + temp + face->type1.private_dict.lenIV, size ); + FT_FREE( temp ); + } + else + error = T1_Add_Table( code_table, n, base, size ); + if ( error ) + goto Fail; + + n++; + } + } + + loader->num_glyphs = n; + + /* if /.notdef is found but does not occupy index 0, do our magic. */ + if ( notdef_found && + ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) ) + { + /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */ + /* name and code entries to swap_table. Then place notdef_index */ + /* name and code entries into swap_table. Then swap name and code */ + /* entries at indices notdef_index and 0 using values stored in */ + /* swap_table. */ + + /* Index 0 name */ + error = T1_Add_Table( swap_table, 0, + name_table->elements[0], + name_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index 0 code */ + error = T1_Add_Table( swap_table, 1, + code_table->elements[0], + code_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index notdef_index name */ + error = T1_Add_Table( swap_table, 2, + name_table->elements[notdef_index], + name_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + /* Index notdef_index code */ + error = T1_Add_Table( swap_table, 3, + code_table->elements[notdef_index], + code_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, notdef_index, + swap_table->elements[0], + swap_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, notdef_index, + swap_table->elements[1], + swap_table->lengths [1] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, 0, + swap_table->elements[2], + swap_table->lengths [2] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, 0, + swap_table->elements[3], + swap_table->lengths [3] ); + if ( error ) + goto Fail; + + } + else if ( !notdef_found ) + { + /* notdef_index is already 0, or /.notdef is undefined in */ + /* charstrings dictionary. Worry about /.notdef undefined. */ + /* We take index 0 and add it to the end of the table(s) */ + /* and add our own /.notdef glyph to index 0. */ + + /* 0 333 hsbw endchar */ + FT_Byte notdef_glyph[] = { 0x8B, 0xF7, 0xE1, 0x0D, 0x0E }; + char* notdef_name = (char *)".notdef"; + + + error = T1_Add_Table( swap_table, 0, + name_table->elements[0], + name_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( swap_table, 1, + code_table->elements[0], + code_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, 0, notdef_name, 8 ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, 0, notdef_glyph, 5 ); + + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, n, + swap_table->elements[0], + swap_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, n, + swap_table->elements[1], + swap_table->lengths [1] ); + if ( error ) + goto Fail; + + /* we added a glyph. */ + loader->num_glyphs += 1; + } + + return; + + Fail: + parser->root.error = error; + } + + + /*************************************************************************/ + /* */ + /* Define the token field static variables. This is a set of */ + /* T1_FieldRec variables. */ + /* */ + /*************************************************************************/ + + + static + const T1_FieldRec t1_keywords[] = + { + +#include "t1tokens.h" + + /* now add the special functions... */ + T1_FIELD_CALLBACK( "FontMatrix", parse_font_matrix, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "Encoding", parse_encoding, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "Subrs", parse_subrs, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_CALLBACK( "CharStrings", parse_charstrings, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_CALLBACK( "Private", parse_private, + T1_FIELD_DICT_FONTDICT ) + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + T1_FIELD_CALLBACK( "BlendDesignPositions", parse_blend_design_positions, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "BlendDesignMap", parse_blend_design_map, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "BlendAxisTypes", parse_blend_axis_types, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "WeightVector", parse_weight_vector, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "BuildCharArray", parse_buildchar, + T1_FIELD_DICT_PRIVATE ) +#endif + + { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } + }; + + +#define T1_FIELD_COUNT \ + ( sizeof ( t1_keywords ) / sizeof ( t1_keywords[0] ) ) + + + static FT_Error + parse_dict( T1_Face face, + T1_Loader loader, + FT_Byte* base, + FT_Long size ) + { + T1_Parser parser = &loader->parser; + FT_Byte *limit, *start_binary = NULL; + FT_Bool have_integer = 0; + + + parser->root.cursor = base; + parser->root.limit = base + size; + parser->root.error = T1_Err_Ok; + + limit = parser->root.limit; + + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + FT_Byte* cur; + + + cur = parser->root.cursor; + + /* look for `eexec' */ + if ( IS_PS_TOKEN( cur, limit, "eexec" ) ) + break; + + /* look for `closefile' which ends the eexec section */ + else if ( IS_PS_TOKEN( cur, limit, "closefile" ) ) + break; + + /* in a synthetic font the base font starts after a */ + /* `FontDictionary' token that is placed after a Private dict */ + else if ( IS_PS_TOKEN( cur, limit, "FontDirectory" ) ) + { + if ( loader->keywords_encountered & T1_PRIVATE ) + loader->keywords_encountered |= + T1_FONTDIR_AFTER_PRIVATE; + parser->root.cursor += 13; + } + + /* check whether we have an integer */ + else if ( ft_isdigit( *cur ) ) + { + start_binary = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + have_integer = 1; + } + + /* in valid Type 1 fonts we don't see `RD' or `-|' directly */ + /* since those tokens are handled by parse_subrs and */ + /* parse_charstrings */ + else if ( *cur == 'R' && cur + 6 < limit && *(cur + 1) == 'D' && + have_integer ) + { + FT_Long s; + FT_Byte* b; + + + parser->root.cursor = start_binary; + if ( !read_binary_data( parser, &s, &b ) ) + return T1_Err_Invalid_File_Format; + have_integer = 0; + } + + else if ( *cur == '-' && cur + 6 < limit && *(cur + 1) == '|' && + have_integer ) + { + FT_Long s; + FT_Byte* b; + + + parser->root.cursor = start_binary; + if ( !read_binary_data( parser, &s, &b ) ) + return T1_Err_Invalid_File_Format; + have_integer = 0; + } + + /* look for immediates */ + else if ( *cur == '/' && cur + 2 < limit ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + + len = parser->root.cursor - cur; + + if ( len > 0 && len < 22 && parser->root.cursor < limit ) + { + /* now compare the immediate name to the keyword table */ + T1_Field keyword = (T1_Field)t1_keywords; + + + for (;;) + { + FT_Byte* name; + + + name = (FT_Byte*)keyword->ident; + if ( !name ) + break; + + if ( cur[0] == name[0] && + len == (FT_PtrDist)ft_strlen( (const char *)name ) && + ft_memcmp( cur, name, len ) == 0 ) + { + /* We found it -- run the parsing callback! */ + /* We record every instance of every field */ + /* (until we reach the base font of a */ + /* synthetic font) to deal adequately with */ + /* multiple master fonts; this is also */ + /* necessary because later PostScript */ + /* definitions override earlier ones. */ + + /* Once we encounter `FontDirectory' after */ + /* `/Private', we know that this is a synthetic */ + /* font; except for `/CharStrings' we are not */ + /* interested in anything that follows this */ + /* `FontDirectory'. */ + + /* MM fonts have more than one /Private token at */ + /* the top level; let's hope that all the junk */ + /* that follows the first /Private token is not */ + /* interesting to us. */ + + /* According to Adobe Tech Note #5175 (CID-Keyed */ + /* Font Installation for ATM Software) a `begin' */ + /* must be followed by exactly one `end', and */ + /* `begin' -- `end' pairs must be accurately */ + /* paired. We could use this to distinguish */ + /* between the global Private and the Private */ + /* dict that is a member of the Blend dict. */ + + const FT_UInt dict = + ( loader->keywords_encountered & T1_PRIVATE ) + ? T1_FIELD_DICT_PRIVATE + : T1_FIELD_DICT_FONTDICT; + + if ( !( dict & keyword->dict ) ) + { + FT_TRACE1(( "parse_dict: found %s but ignoring it " + "since it is in the wrong dictionary\n", + keyword->ident )); + break; + } + + if ( !( loader->keywords_encountered & + T1_FONTDIR_AFTER_PRIVATE ) || + ft_strcmp( (const char*)name, "CharStrings" ) == 0 ) + { + parser->root.error = t1_load_keyword( face, + loader, + keyword ); + if ( parser->root.error != T1_Err_Ok ) + { + if ( FT_ERROR_BASE( parser->root.error ) == FT_Err_Ignore ) + parser->root.error = T1_Err_Ok; + else + return parser->root.error; + } + } + break; + } + + keyword++; + } + } + + have_integer = 0; + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + have_integer = 0; + } + + T1_Skip_Spaces( parser ); + } + + Exit: + return parser->root.error; + } + + + static void + t1_init_loader( T1_Loader loader, + T1_Face face ) + { + FT_UNUSED( face ); + + FT_MEM_ZERO( loader, sizeof ( *loader ) ); + loader->num_glyphs = 0; + loader->num_chars = 0; + + /* initialize the tables -- simply set their `init' field to 0 */ + loader->encoding_table.init = 0; + loader->charstrings.init = 0; + loader->glyph_names.init = 0; + loader->subrs.init = 0; + loader->swap_table.init = 0; + loader->fontdata = 0; + loader->keywords_encountered = 0; + } + + + static void + t1_done_loader( T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + + + /* finalize tables */ + T1_Release_Table( &loader->encoding_table ); + T1_Release_Table( &loader->charstrings ); + T1_Release_Table( &loader->glyph_names ); + T1_Release_Table( &loader->swap_table ); + T1_Release_Table( &loader->subrs ); + + /* finalize parser */ + T1_Finalize_Parser( parser ); + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Open_Face( T1_Face face ) + { + T1_LoaderRec loader; + T1_Parser parser; + T1_Font type1 = &face->type1; + PS_Private priv = &type1->private_dict; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + t1_init_loader( &loader, face ); + + /* default values */ + face->ndv_idx = -1; + face->cdv_idx = -1; + face->len_buildchar = 0; + + priv->blue_shift = 7; + priv->blue_fuzz = 1; + priv->lenIV = 4; + priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); + priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); + + parser = &loader.parser; + error = T1_New_Parser( parser, + face->root.stream, + face->root.memory, + psaux ); + if ( error ) + goto Exit; + + error = parse_dict( face, &loader, + parser->base_dict, parser->base_len ); + if ( error ) + goto Exit; + + error = T1_Get_Private_Dict( parser, psaux ); + if ( error ) + goto Exit; + + error = parse_dict( face, &loader, + parser->private_dict, parser->private_len ); + if ( error ) + goto Exit; + + /* ensure even-ness of `num_blue_values' */ + priv->num_blue_values &= ~1; + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + + if ( face->blend && + face->blend->num_default_design_vector != 0 && + face->blend->num_default_design_vector != face->blend->num_axis ) + { + /* we don't use it currently so just warn, reset, and ignore */ + FT_ERROR(( "T1_Open_Face(): /DesignVector contains %u entries " + "while there are %u axes.\n", + face->blend->num_default_design_vector, + face->blend->num_axis )); + + face->blend->num_default_design_vector = 0; + } + + /* the following can happen for MM instances; we then treat the */ + /* font as a normal PS font */ + if ( face->blend && + ( !face->blend->num_designs || !face->blend->num_axis ) ) + T1_Done_Blend( face ); + + /* another safety check */ + if ( face->blend ) + { + FT_UInt i; + + + for ( i = 0; i < face->blend->num_axis; i++ ) + if ( !face->blend->design_map[i].num_points ) + { + T1_Done_Blend( face ); + break; + } + } + + if ( face->blend ) + { + if ( face->len_buildchar > 0 ) + { + FT_Memory memory = face->root.memory; + + + if ( FT_NEW_ARRAY( face->buildchar, face->len_buildchar ) ) + { + FT_ERROR(( "T1_Open_Face: cannot allocate BuildCharArray\n" )); + face->len_buildchar = 0; + goto Exit; + } + } + } + +#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + /* now, propagate the subrs, charstrings, and glyphnames tables */ + /* to the Type1 data */ + type1->num_glyphs = loader.num_glyphs; + + if ( loader.subrs.init ) + { + loader.subrs.init = 0; + type1->num_subrs = loader.num_subrs; + type1->subrs_block = loader.subrs.block; + type1->subrs = loader.subrs.elements; + type1->subrs_len = loader.subrs.lengths; + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( !face->root.internal->incremental_interface ) +#endif + if ( !loader.charstrings.init ) + { + FT_ERROR(( "T1_Open_Face: no `/CharStrings' array in face\n" )); + error = T1_Err_Invalid_File_Format; + } + + loader.charstrings.init = 0; + type1->charstrings_block = loader.charstrings.block; + type1->charstrings = loader.charstrings.elements; + type1->charstrings_len = loader.charstrings.lengths; + + /* we copy the glyph names `block' and `elements' fields; */ + /* the `lengths' field must be released later */ + type1->glyph_names_block = loader.glyph_names.block; + type1->glyph_names = (FT_String**)loader.glyph_names.elements; + loader.glyph_names.block = 0; + loader.glyph_names.elements = 0; + + /* we must now build type1.encoding when we have a custom array */ + if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY ) + { + FT_Int charcode, idx, min_char, max_char; + FT_Byte* char_name; + FT_Byte* glyph_name; + + + /* OK, we do the following: for each element in the encoding */ + /* table, look up the index of the glyph having the same name */ + /* the index is then stored in type1.encoding.char_index, and */ + /* the name to type1.encoding.char_name */ + + min_char = 0; + max_char = 0; + + charcode = 0; + for ( ; charcode < loader.encoding_table.max_elems; charcode++ ) + { + type1->encoding.char_index[charcode] = 0; + type1->encoding.char_name [charcode] = (char *)".notdef"; + + char_name = loader.encoding_table.elements[charcode]; + if ( char_name ) + for ( idx = 0; idx < type1->num_glyphs; idx++ ) + { + glyph_name = (FT_Byte*)type1->glyph_names[idx]; + if ( ft_strcmp( (const char*)char_name, + (const char*)glyph_name ) == 0 ) + { + type1->encoding.char_index[charcode] = (FT_UShort)idx; + type1->encoding.char_name [charcode] = (char*)glyph_name; + + /* Change min/max encoded char only if glyph name is */ + /* not /.notdef */ + if ( ft_strcmp( (const char*)".notdef", + (const char*)glyph_name ) != 0 ) + { + if ( charcode < min_char ) + min_char = charcode; + if ( charcode >= max_char ) + max_char = charcode + 1; + } + break; + } + } + } + + type1->encoding.code_first = min_char; + type1->encoding.code_last = max_char; + type1->encoding.num_chars = loader.num_chars; + } + + Exit: + t1_done_loader( &loader ); + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1load.h b/uppsrc/plugin/FT_fontsys/src/type1/t1load.h new file mode 100644 index 000000000..e637c0a73 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1load.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* t1load.h */ +/* */ +/* Type 1 font loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1LOAD_H__ +#define __T1LOAD_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_MULTIPLE_MASTERS_H + +#include "t1parse.h" + + +FT_BEGIN_HEADER + + + typedef struct T1_Loader_ + { + T1_ParserRec parser; /* parser used to read the stream */ + + FT_Int num_chars; /* number of characters in encoding */ + PS_TableRec encoding_table; /* PS_Table used to store the */ + /* encoding character names */ + + FT_Int num_glyphs; + PS_TableRec glyph_names; + PS_TableRec charstrings; + PS_TableRec swap_table; /* For moving .notdef glyph to index 0. */ + + FT_Int num_subrs; + PS_TableRec subrs; + FT_Bool fontdata; + + FT_UInt keywords_encountered; /* T1_LOADER_ENCOUNTERED_XXX */ + + } T1_LoaderRec, *T1_Loader; + + + /* treatment of some keywords differs depending on whether */ + /* they precede or follow certain other keywords */ + +#define T1_PRIVATE ( 1 << 0 ) +#define T1_FONTDIR_AFTER_PRIVATE ( 1 << 1 ) + + + FT_LOCAL( FT_Error ) + T1_Open_Face( T1_Face face ); + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + + FT_LOCAL( FT_Error ) + T1_Get_Multi_Master( T1_Face face, + FT_Multi_Master* master ); + + FT_LOCAL_DEF( FT_Error ) + T1_Get_MM_Var( T1_Face face, + FT_MM_Var* *master ); + + FT_LOCAL( FT_Error ) + T1_Set_MM_Blend( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( FT_Error ) + T1_Set_MM_Design( T1_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + FT_LOCAL_DEF( FT_Error ) + T1_Set_Var_Design( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( void ) + T1_Done_Blend( T1_Face face ); + +#endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + +FT_END_HEADER + +#endif /* __T1LOAD_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1objs.c b/uppsrc/plugin/FT_fontsys/src/type1/t1objs.c new file mode 100644 index 000000000..8d57bd9c7 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1objs.c @@ -0,0 +1,597 @@ +/***************************************************************************/ +/* */ +/* t1objs.c */ +/* */ +/* Type 1 objects manager (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_IDS_H + +#include "t1gload.h" +#include "t1load.h" + +#include "t1errors.h" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "t1afm.h" +#endif + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1objs + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /* note that we store the global hints in the size's "internal" root */ + /* field */ + /* */ + /*************************************************************************/ + + + static PSH_Globals_Funcs + T1_Size_Get_Globals_Funcs( T1_Size size ) + { + T1_Face face = (T1_Face)size->root.face; + PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; + FT_Module module; + + + module = FT_Get_Module( size->root.face->driver->root.library, + "pshinter" ); + return ( module && pshinter && pshinter->get_globals_funcs ) + ? pshinter->get_globals_funcs( module ) + : 0 ; + } + + + FT_LOCAL_DEF( void ) + T1_Size_Done( T1_Size size ) + { + if ( size->root.internal ) + { + PSH_Globals_Funcs funcs; + + + funcs = T1_Size_Get_Globals_Funcs( size ); + if ( funcs ) + funcs->destroy( (PSH_Globals)size->root.internal ); + + size->root.internal = 0; + } + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Size_Init( T1_Size size ) + { + FT_Error error = T1_Err_Ok; + PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size ); + + + if ( funcs ) + { + PSH_Globals globals; + T1_Face face = (T1_Face)size->root.face; + + + error = funcs->create( size->root.face->memory, + &face->type1.private_dict, &globals ); + if ( !error ) + size->root.internal = (FT_Size_Internal)(void*)globals; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Size_Request( T1_Size size, + FT_Size_Request req ) + { + PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size ); + + + FT_Request_Metrics( size->root.face, req ); + + if ( funcs ) + funcs->set_scale( (PSH_Globals)size->root.internal, + size->root.metrics.x_scale, + size->root.metrics.y_scale, + 0, 0 ); + + return T1_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* SLOT FUNCTIONS */ + /* */ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + T1_GlyphSlot_Done( T1_GlyphSlot slot ) + { + slot->root.internal->glyph_hints = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_GlyphSlot_Init( T1_GlyphSlot slot ) + { + T1_Face face; + PSHinter_Service pshinter; + + + face = (T1_Face)slot->root.face; + pshinter = (PSHinter_Service)face->pshinter; + + if ( pshinter ) + { + FT_Module module; + + + module = FT_Get_Module( slot->root.face->driver->root.library, "pshinter" ); + if (module) + { + T1_Hints_Funcs funcs; + + funcs = pshinter->get_t1_funcs( module ); + slot->root.internal->glyph_hints = (void*)funcs; + } + } + return 0; + } + + + /*************************************************************************/ + /* */ + /* FACE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* T1_Face_Done */ + /* */ + /* <Description> */ + /* The face object destructor. */ + /* */ + /* <Input> */ + /* face :: A typeless pointer to the face object to destroy. */ + /* */ + FT_LOCAL_DEF( void ) + T1_Face_Done( T1_Face face ) + { + FT_Memory memory; + T1_Font type1; + + + if ( !face ) + return; + + memory = face->root.memory; + type1 = &face->type1; + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + /* release multiple masters information */ + FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) ); + + if ( face->buildchar ) + { + FT_FREE( face->buildchar ); + + face->buildchar = NULL; + face->len_buildchar = 0; + } + + T1_Done_Blend( face ); + face->blend = 0; +#endif + + /* release font info strings */ + { + PS_FontInfo info = &type1->font_info; + + + FT_FREE( info->version ); + FT_FREE( info->notice ); + FT_FREE( info->full_name ); + FT_FREE( info->family_name ); + FT_FREE( info->weight ); + } + + /* release top dictionary */ + FT_FREE( type1->charstrings_len ); + FT_FREE( type1->charstrings ); + FT_FREE( type1->glyph_names ); + + FT_FREE( type1->subrs ); + FT_FREE( type1->subrs_len ); + + FT_FREE( type1->subrs_block ); + FT_FREE( type1->charstrings_block ); + FT_FREE( type1->glyph_names_block ); + + FT_FREE( type1->encoding.char_index ); + FT_FREE( type1->encoding.char_name ); + FT_FREE( type1->font_name ); + +#ifndef T1_CONFIG_OPTION_NO_AFM + /* release afm data if present */ + if ( face->afm_data ) + T1_Done_Metrics( memory, (AFM_FontInfo)face->afm_data ); +#endif + + /* release unicode map, if any */ +#if 0 + FT_FREE( face->unicode_map_rec.maps ); + face->unicode_map_rec.num_maps = 0; + face->unicode_map = NULL; +#endif + + face->root.family_name = NULL; + face->root.style_name = NULL; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* T1_Face_Init */ + /* */ + /* <Description> */ + /* The face object constructor. */ + /* */ + /* <Input> */ + /* stream :: input stream where to load font data. */ + /* */ + /* face_index :: The index of the font face in the resource. */ + /* */ + /* num_params :: Number of additional generic parameters. Ignored. */ + /* */ + /* params :: Additional generic parameters. Ignored. */ + /* */ + /* <InOut> */ + /* face :: The face record to build. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Face_Init( FT_Stream stream, + T1_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Service_PsCMaps psnames; + PSAux_Service psaux; + T1_Font type1 = &face->type1; + PS_FontInfo info = &type1->font_info; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( stream ); + + + face->root.num_faces = 1; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + face->psnames = psnames; + + face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), + "psaux" ); + psaux = (PSAux_Service)face->psaux; + + face->pshinter = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), + "pshinter" ); + + /* open the tokenizer; this will also check the font format */ + error = T1_Open_Face( face ); + if ( error ) + goto Exit; + + /* if we just wanted to check the format, leave successfully now */ + if ( face_index < 0 ) + goto Exit; + + /* check the face index */ + if ( face_index > 0 ) + { + FT_ERROR(( "T1_Face_Init: invalid face index\n" )); + error = T1_Err_Invalid_Argument; + goto Exit; + } + + /* now load the font program into the face object */ + + /* initialize the face object fields */ + + /* set up root face fields */ + { + FT_Face root = (FT_Face)&face->root; + + + root->num_glyphs = type1->num_glyphs; + root->face_index = 0; + + root->face_flags = FT_FACE_FLAG_SCALABLE | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_GLYPH_NAMES | + FT_FACE_FLAG_HINTER; + + if ( info->is_fixed_pitch ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( face->blend ) + root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS; + + /* XXX: TODO -- add kerning with .afm support */ + + + /* The following code to extract the family and the style is very */ + /* simplistic and might get some things wrong. For a full-featured */ + /* algorithm you might have a look at the whitepaper given at */ + /* */ + /* http://blogs.msdn.com/text/archive/2007/04/23/wpf-font-selection-model.aspx */ + + /* get style name -- be careful, some broken fonts only */ + /* have a `/FontName' dictionary entry! */ + root->family_name = info->family_name; + root->style_name = NULL; + + if ( root->family_name ) + { + char* full = info->full_name; + char* family = root->family_name; + + + if ( full ) + { + FT_Bool the_same = TRUE; + + + while ( *full ) + { + if ( *full == *family ) + { + family++; + full++; + } + else + { + if ( *full == ' ' || *full == '-' ) + full++; + else if ( *family == ' ' || *family == '-' ) + family++; + else + { + the_same = FALSE; + + if ( !*family ) + root->style_name = full; + break; + } + } + } + + if ( the_same ) + root->style_name = (char *)"Regular"; + } + } + else + { + /* do we have a `/FontName'? */ + if ( type1->font_name ) + root->family_name = type1->font_name; + } + + if ( !root->style_name ) + { + if ( info->weight ) + root->style_name = info->weight; + else + /* assume `Regular' style because we don't know better */ + root->style_name = (char *)"Regular"; + } + + /* compute style flags */ + root->style_flags = 0; + if ( info->italic_angle ) + root->style_flags |= FT_STYLE_FLAG_ITALIC; + if ( info->weight ) + { + if ( !ft_strcmp( info->weight, "Bold" ) || + !ft_strcmp( info->weight, "Black" ) ) + root->style_flags |= FT_STYLE_FLAG_BOLD; + } + + /* no embedded bitmap support */ + root->num_fixed_sizes = 0; + root->available_sizes = 0; + + root->bbox.xMin = type1->font_bbox.xMin >> 16; + root->bbox.yMin = type1->font_bbox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + root->bbox.xMax = ( type1->font_bbox.xMax + 0xFFFF ) >> 16; + root->bbox.yMax = ( type1->font_bbox.yMax + 0xFFFF ) >> 16; + + /* Set units_per_EM if we didn't set it in parse_font_matrix. */ + if ( !root->units_per_EM ) + root->units_per_EM = 1000; + + root->ascender = (FT_Short)( root->bbox.yMax ); + root->descender = (FT_Short)( root->bbox.yMin ); + + root->height = (FT_Short)( ( root->units_per_EM * 12 ) / 10 ); + if ( root->height < root->ascender - root->descender ) + root->height = (FT_Short)( root->ascender - root->descender ); + + /* now compute the maximum advance width */ + root->max_advance_width = + (FT_Short)( root->bbox.xMax ); + { + FT_Pos max_advance; + + + error = T1_Compute_Max_Advance( face, &max_advance ); + + /* in case of error, keep the standard width */ + if ( !error ) + root->max_advance_width = (FT_Short)FIXED_TO_INT( max_advance ); + else + error = T1_Err_Ok; /* clear error */ + } + + root->max_advance_height = root->height; + + root->underline_position = (FT_Short)info->underline_position; + root->underline_thickness = (FT_Short)info->underline_thickness; + } + + { + FT_Face root = &face->root; + + + if ( psnames && psaux ) + { + FT_CharMapRec charmap; + T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes; + FT_CMap_Class clazz; + + + charmap.face = root; + + /* first of all, try to synthesize a Unicode charmap */ + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + charmap.encoding = FT_ENCODING_UNICODE; + + error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL ); + if ( error && FT_Err_No_Unicode_Glyph_Name != error ) + goto Exit; + error = FT_Err_Ok; + + /* now, generate an Adobe Standard encoding when appropriate */ + charmap.platform_id = TT_PLATFORM_ADOBE; + clazz = NULL; + + switch ( type1->encoding_type ) + { + case T1_ENCODING_TYPE_STANDARD: + charmap.encoding = FT_ENCODING_ADOBE_STANDARD; + charmap.encoding_id = TT_ADOBE_ID_STANDARD; + clazz = cmap_classes->standard; + break; + + case T1_ENCODING_TYPE_EXPERT: + charmap.encoding = FT_ENCODING_ADOBE_EXPERT; + charmap.encoding_id = TT_ADOBE_ID_EXPERT; + clazz = cmap_classes->expert; + break; + + case T1_ENCODING_TYPE_ARRAY: + charmap.encoding = FT_ENCODING_ADOBE_CUSTOM; + charmap.encoding_id = TT_ADOBE_ID_CUSTOM; + clazz = cmap_classes->custom; + break; + + case T1_ENCODING_TYPE_ISOLATIN1: + charmap.encoding = FT_ENCODING_ADOBE_LATIN_1; + charmap.encoding_id = TT_ADOBE_ID_LATIN_1; + clazz = cmap_classes->unicode; + break; + + default: + ; + } + + if ( clazz ) + error = FT_CMap_New( clazz, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if (root->num_charmaps) + root->charmap = root->charmaps[0]; +#endif + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* T1_Driver_Init */ + /* */ + /* <Description> */ + /* Initializes a given Type 1 driver object. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target driver object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Driver_Init( T1_Driver driver ) + { + FT_UNUSED( driver ); + + return T1_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* T1_Driver_Done */ + /* */ + /* <Description> */ + /* Finalizes a given Type 1 driver. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target Type 1 driver. */ + /* */ + FT_LOCAL_DEF( void ) + T1_Driver_Done( T1_Driver driver ) + { + FT_UNUSED( driver ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1objs.h b/uppsrc/plugin/FT_fontsys/src/type1/t1objs.h new file mode 100644 index 000000000..e7cb3dac8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1objs.h @@ -0,0 +1,171 @@ +/***************************************************************************/ +/* */ +/* t1objs.h */ +/* */ +/* Type 1 objects manager (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1OBJS_H__ +#define __T1OBJS_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + + /* The following structures must be defined by the hinter */ + typedef struct T1_Size_Hints_ T1_Size_Hints; + typedef struct T1_Glyph_Hints_ T1_Glyph_Hints; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* T1_Driver */ + /* */ + /* <Description> */ + /* A handle to a Type 1 driver object. */ + /* */ + typedef struct T1_DriverRec_ *T1_Driver; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* T1_Size */ + /* */ + /* <Description> */ + /* A handle to a Type 1 size object. */ + /* */ + typedef struct T1_SizeRec_* T1_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* T1_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to a Type 1 glyph slot object. */ + /* */ + typedef struct T1_GlyphSlotRec_* T1_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* T1_CharMap */ + /* */ + /* <Description> */ + /* A handle to a Type 1 character mapping object. */ + /* */ + /* <Note> */ + /* The Type 1 format doesn't use a charmap but an encoding table. */ + /* The driver is responsible for making up charmap objects */ + /* corresponding to these tables. */ + /* */ + typedef struct T1_CharMapRec_* T1_CharMap; + + + /*************************************************************************/ + /* */ + /* HERE BEGINS THE TYPE1 SPECIFIC STUFF */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* T1_SizeRec */ + /* */ + /* <Description> */ + /* Type 1 size record. */ + /* */ + typedef struct T1_SizeRec_ + { + FT_SizeRec root; + + } T1_SizeRec; + + + FT_LOCAL( void ) + T1_Size_Done( T1_Size size ); + + FT_LOCAL( FT_Error ) + T1_Size_Request( T1_Size size, + FT_Size_Request req ); + + FT_LOCAL( FT_Error ) + T1_Size_Init( T1_Size size ); + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* T1_GlyphSlotRec */ + /* */ + /* <Description> */ + /* Type 1 glyph slot record. */ + /* */ + typedef struct T1_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + + FT_Bool hint; + FT_Bool scaled; + + FT_Int max_points; + FT_Int max_contours; + + FT_Fixed x_scale; + FT_Fixed y_scale; + + } T1_GlyphSlotRec; + + + FT_LOCAL( FT_Error ) + T1_Face_Init( FT_Stream stream, + T1_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + T1_Face_Done( T1_Face face ); + + FT_LOCAL( FT_Error ) + T1_GlyphSlot_Init( T1_GlyphSlot slot ); + + FT_LOCAL( void ) + T1_GlyphSlot_Done( T1_GlyphSlot slot ); + + FT_LOCAL( FT_Error ) + T1_Driver_Init( T1_Driver driver ); + + FT_LOCAL( void ) + T1_Driver_Done( T1_Driver driver ); + + +FT_END_HEADER + +#endif /* __T1OBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1parse.c b/uppsrc/plugin/FT_fontsys/src/type1/t1parse.c new file mode 100644 index 000000000..90b11a826 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1parse.c @@ -0,0 +1,486 @@ +/***************************************************************************/ +/* */ +/* t1parse.c */ +/* */ +/* Type 1 parser (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The Type 1 parser is in charge of the following: */ + /* */ + /* - provide an implementation of a growing sequence of objects called */ + /* a `T1_Table' (used to build various tables needed by the loader). */ + /* */ + /* - opening .pfb and .pfa files to extract their top-level and private */ + /* dictionaries. */ + /* */ + /* - read numbers, arrays & strings from any dictionary. */ + /* */ + /* See `t1load.c' to see how data is loaded from the font file. */ + /* */ + /*************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "t1parse.h" + +#include "t1errors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1parse + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** INPUT STREAM PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* see Adobe Technical Note 5040.Download_Fonts.pdf */ + + static FT_Error + read_pfb_tag( FT_Stream stream, + FT_UShort *atag, + FT_ULong *asize ) + { + FT_Error error; + FT_UShort tag; + FT_ULong size; + + + *atag = 0; + *asize = 0; + + if ( !FT_READ_USHORT( tag ) ) + { + if ( tag == 0x8001U || tag == 0x8002U ) + { + if ( !FT_READ_ULONG_LE( size ) ) + *asize = size; + } + + *atag = tag; + } + + return error; + } + + + static FT_Error + check_type1_format( FT_Stream stream, + const char* header_string, + size_t header_length ) + { + FT_Error error; + FT_UShort tag; + FT_ULong dummy; + + + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + error = read_pfb_tag( stream, &tag, &dummy ); + if ( error ) + goto Exit; + + /* We assume that the first segment in a PFB is always encoded as */ + /* text. This might be wrong (and the specification doesn't insist */ + /* on that), but we have never seen a counterexample. */ + if ( tag != 0x8001U && FT_STREAM_SEEK( 0 ) ) + goto Exit; + + if ( !FT_FRAME_ENTER( header_length ) ) + { + error = T1_Err_Ok; + + if ( ft_memcmp( stream->cursor, header_string, header_length ) != 0 ) + error = T1_Err_Unknown_File_Format; + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_New_Parser( T1_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ) + { + FT_Error error; + FT_UShort tag; + FT_ULong size; + + + psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); + + parser->stream = stream; + parser->base_len = 0; + parser->base_dict = 0; + parser->private_len = 0; + parser->private_dict = 0; + parser->in_pfb = 0; + parser->in_memory = 0; + parser->single_block = 0; + + /* check the header format */ + error = check_type1_format( stream, "%!PS-AdobeFont", 14 ); + if ( error ) + { + if ( error != T1_Err_Unknown_File_Format ) + goto Exit; + + error = check_type1_format( stream, "%!FontType", 10 ); + if ( error ) + { + FT_TRACE2(( "[not a Type1 font]\n" )); + goto Exit; + } + } + + /******************************************************************/ + /* */ + /* Here a short summary of what is going on: */ + /* */ + /* When creating a new Type 1 parser, we try to locate and load */ + /* the base dictionary if this is possible (i.e., for PFB */ + /* files). Otherwise, we load the whole font into memory. */ + /* */ + /* When `loading' the base dictionary, we only setup pointers */ + /* in the case of a memory-based stream. Otherwise, we */ + /* allocate and load the base dictionary in it. */ + /* */ + /* parser->in_pfb is set if we are in a binary (`.pfb') font. */ + /* parser->in_memory is set if we have a memory stream. */ + /* */ + + /* try to compute the size of the base dictionary; */ + /* look for a Postscript binary file tag, i.e., 0x8001 */ + if ( FT_STREAM_SEEK( 0L ) ) + goto Exit; + + error = read_pfb_tag( stream, &tag, &size ); + if ( error ) + goto Exit; + + if ( tag != 0x8001U ) + { + /* assume that this is a PFA file for now; an error will */ + /* be produced later when more things are checked */ + if ( FT_STREAM_SEEK( 0L ) ) + goto Exit; + size = stream->size; + } + else + parser->in_pfb = 1; + + /* now, try to load `size' bytes of the `base' dictionary we */ + /* found previously */ + + /* if it is a memory-based resource, set up pointers */ + if ( !stream->read ) + { + parser->base_dict = (FT_Byte*)stream->base + stream->pos; + parser->base_len = size; + parser->in_memory = 1; + + /* check that the `size' field is valid */ + if ( FT_STREAM_SKIP( size ) ) + goto Exit; + } + else + { + /* read segment in memory -- this is clumsy, but so does the format */ + if ( FT_ALLOC( parser->base_dict, size ) || + FT_STREAM_READ( parser->base_dict, size ) ) + goto Exit; + parser->base_len = size; + } + + parser->root.base = parser->base_dict; + parser->root.cursor = parser->base_dict; + parser->root.limit = parser->root.cursor + parser->base_len; + + Exit: + if ( error && !parser->in_memory ) + FT_FREE( parser->base_dict ); + + return error; + } + + + FT_LOCAL_DEF( void ) + T1_Finalize_Parser( T1_Parser parser ) + { + FT_Memory memory = parser->root.memory; + + + /* always free the private dictionary */ + FT_FREE( parser->private_dict ); + + /* free the base dictionary only when we have a disk stream */ + if ( !parser->in_memory ) + FT_FREE( parser->base_dict ); + + parser->root.funcs.done( &parser->root ); + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Private_Dict( T1_Parser parser, + PSAux_Service psaux ) + { + FT_Stream stream = parser->stream; + FT_Memory memory = parser->root.memory; + FT_Error error = T1_Err_Ok; + FT_ULong size; + + + if ( parser->in_pfb ) + { + /* in the case of the PFB format, the private dictionary can be */ + /* made of several segments. We thus first read the number of */ + /* segments to compute the total size of the private dictionary */ + /* then re-read them into memory. */ + FT_Long start_pos = FT_STREAM_POS(); + FT_UShort tag; + + + parser->private_len = 0; + for (;;) + { + error = read_pfb_tag( stream, &tag, &size ); + if ( error ) + goto Fail; + + if ( tag != 0x8002U ) + break; + + parser->private_len += size; + + if ( FT_STREAM_SKIP( size ) ) + goto Fail; + } + + /* Check that we have a private dictionary there */ + /* and allocate private dictionary buffer */ + if ( parser->private_len == 0 ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " invalid private dictionary section\n" )); + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + if ( FT_STREAM_SEEK( start_pos ) || + FT_ALLOC( parser->private_dict, parser->private_len ) ) + goto Fail; + + parser->private_len = 0; + for (;;) + { + error = read_pfb_tag( stream, &tag, &size ); + if ( error || tag != 0x8002U ) + { + error = T1_Err_Ok; + break; + } + + if ( FT_STREAM_READ( parser->private_dict + parser->private_len, + size ) ) + goto Fail; + + parser->private_len += size; + } + } + else + { + /* We have already `loaded' the whole PFA font file into memory; */ + /* if this is a memory resource, allocate a new block to hold */ + /* the private dict. Otherwise, simply overwrite into the base */ + /* dictionary block in the heap. */ + + /* first of all, look at the `eexec' keyword */ + FT_Byte* cur = parser->base_dict; + FT_Byte* limit = cur + parser->base_len; + FT_Byte c; + + + Again: + for (;;) + { + c = cur[0]; + if ( c == 'e' && cur + 9 < limit ) /* 9 = 5 letters for `eexec' + */ + /* newline + 4 chars */ + { + if ( cur[1] == 'e' && + cur[2] == 'x' && + cur[3] == 'e' && + cur[4] == 'c' ) + break; + } + cur++; + if ( cur >= limit ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " could not find `eexec' keyword\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + } + + /* check whether `eexec' was real -- it could be in a comment */ + /* or string (as e.g. in u003043t.gsf from ghostscript) */ + + parser->root.cursor = parser->base_dict; + parser->root.limit = cur + 9; + + cur = parser->root.cursor; + limit = parser->root.limit; + + while ( cur < limit ) + { + if ( *cur == 'e' && ft_strncmp( (char*)cur, "eexec", 5 ) == 0 ) + goto Found; + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + break; + T1_Skip_Spaces ( parser ); + cur = parser->root.cursor; + } + + /* we haven't found the correct `eexec'; go back and continue */ + /* searching */ + + cur = limit; + limit = parser->base_dict + parser->base_len; + goto Again; + + /* now determine where to write the _encrypted_ binary private */ + /* dictionary. We overwrite the base dictionary for disk-based */ + /* resources and allocate a new block otherwise */ + + Found: + parser->root.limit = parser->base_dict + parser->base_len; + + T1_Skip_PS_Token( parser ); + cur = parser->root.cursor; + + /* according to the Type1 spec, the first cipher byte must not be */ + /* an ASCII whitespace character code (blank, tab, carriage return */ + /* or line feed). We have seen Type 1 fonts with two line feed */ + /* characters... So skip now all whitespace character codes. */ + while ( cur < limit && + ( *cur == ' ' || + *cur == '\t' || + *cur == '\r' || + *cur == '\n' ) ) + ++cur; + if ( cur >= limit ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " `eexec' not properly terminated\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + size = parser->base_len - ( cur - parser->base_dict ); + + if ( parser->in_memory ) + { + /* note that we allocate one more byte to put a terminating `0' */ + if ( FT_ALLOC( parser->private_dict, size + 1 ) ) + goto Fail; + parser->private_len = size; + } + else + { + parser->single_block = 1; + parser->private_dict = parser->base_dict; + parser->private_len = size; + parser->base_dict = 0; + parser->base_len = 0; + } + + /* now determine whether the private dictionary is encoded in binary */ + /* or hexadecimal ASCII format -- decode it accordingly */ + + /* we need to access the next 4 bytes (after the final \r following */ + /* the `eexec' keyword); if they all are hexadecimal digits, then */ + /* we have a case of ASCII storage */ + + if ( ft_isxdigit( cur[0] ) && ft_isxdigit( cur[1] ) && + ft_isxdigit( cur[2] ) && ft_isxdigit( cur[3] ) ) + { + /* ASCII hexadecimal encoding */ + FT_Long len; + + + parser->root.cursor = cur; + (void)psaux->ps_parser_funcs->to_bytes( &parser->root, + parser->private_dict, + parser->private_len, + &len, + 0 ); + parser->private_len = len; + + /* put a safeguard */ + parser->private_dict[len] = '\0'; + } + else + /* binary encoding -- copy the private dict */ + FT_MEM_MOVE( parser->private_dict, cur, size ); + } + + /* we now decrypt the encoded binary private dictionary */ + psaux->t1_decrypt( parser->private_dict, parser->private_len, 55665U ); + + /* replace the four random bytes at the beginning with whitespace */ + parser->private_dict[0] = ' '; + parser->private_dict[1] = ' '; + parser->private_dict[2] = ' '; + parser->private_dict[3] = ' '; + + parser->root.base = parser->private_dict; + parser->root.cursor = parser->private_dict; + parser->root.limit = parser->root.cursor + parser->private_len; + + Fail: + Exit: + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1parse.h b/uppsrc/plugin/FT_fontsys/src/type1/t1parse.h new file mode 100644 index 000000000..5a8ab0c05 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1parse.h @@ -0,0 +1,135 @@ +/***************************************************************************/ +/* */ +/* t1parse.h */ +/* */ +/* Type 1 parser (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1PARSE_H__ +#define __T1PARSE_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_ParserRec */ + /* */ + /* <Description> */ + /* A PS_ParserRec is an object used to parse a Type 1 fonts very */ + /* quickly. */ + /* */ + /* <Fields> */ + /* root :: The root parser. */ + /* */ + /* stream :: The current input stream. */ + /* */ + /* base_dict :: A pointer to the top-level dictionary. */ + /* */ + /* base_len :: The length in bytes of the top dictionary. */ + /* */ + /* private_dict :: A pointer to the private dictionary. */ + /* */ + /* private_len :: The length in bytes of the private dictionary. */ + /* */ + /* in_pfb :: A boolean. Indicates that we are handling a PFB */ + /* file. */ + /* */ + /* in_memory :: A boolean. Indicates a memory-based stream. */ + /* */ + /* single_block :: A boolean. Indicates that the private dictionary */ + /* is stored in lieu of the base dictionary. */ + /* */ + typedef struct T1_ParserRec_ + { + PS_ParserRec root; + FT_Stream stream; + + FT_Byte* base_dict; + FT_ULong base_len; + + FT_Byte* private_dict; + FT_ULong private_len; + + FT_Bool in_pfb; + FT_Bool in_memory; + FT_Bool single_block; + + } T1_ParserRec, *T1_Parser; + + +#define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l ) +#define T1_Done_Table( p ) \ + do \ + { \ + if ( (p)->funcs.done ) \ + (p)->funcs.done( p ); \ + } while ( 0 ) +#define T1_Release_Table( p ) \ + do \ + { \ + if ( (p)->funcs.release ) \ + (p)->funcs.release( p ); \ + } while ( 0 ) + + +#define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root ) +#define T1_Skip_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root ) + +#define T1_ToInt( p ) (p)->root.funcs.to_int( &(p)->root ) +#define T1_ToFixed( p, t ) (p)->root.funcs.to_fixed( &(p)->root, t ) + +#define T1_ToCoordArray( p, m, c ) \ + (p)->root.funcs.to_coord_array( &(p)->root, m, c ) +#define T1_ToFixedArray( p, m, f, t ) \ + (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) +#define T1_ToToken( p, t ) \ + (p)->root.funcs.to_token( &(p)->root, t ) +#define T1_ToTokenArray( p, t, m, c ) \ + (p)->root.funcs.to_token_array( &(p)->root, t, m, c ) + +#define T1_Load_Field( p, f, o, m, pf ) \ + (p)->root.funcs.load_field( &(p)->root, f, o, m, pf ) + +#define T1_Load_Field_Table( p, f, o, m, pf ) \ + (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf ) + + + FT_LOCAL( FT_Error ) + T1_New_Parser( T1_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ); + + FT_LOCAL( FT_Error ) + T1_Get_Private_Dict( T1_Parser parser, + PSAux_Service psaux ); + + FT_LOCAL( void ) + T1_Finalize_Parser( T1_Parser parser ); + + +FT_END_HEADER + +#endif /* __T1PARSE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/t1tokens.h b/uppsrc/plugin/FT_fontsys/src/type1/t1tokens.h new file mode 100644 index 000000000..2d692f0e6 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/t1tokens.h @@ -0,0 +1,143 @@ +/***************************************************************************/ +/* */ +/* t1tokens.h */ +/* */ +/* Type 1 tokenizer (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontInfoRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_INFO + + T1_FIELD_STRING( "version", version, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "Notice", notice, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "FullName", full_name, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "FamilyName", family_name, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "Weight", weight, + T1_FIELD_DICT_FONTDICT ) + + /* we use pointers to detect modifications made by synthetic fonts */ + T1_FIELD_NUM ( "ItalicAngle", italic_angle, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "UnderlinePosition", underline_position, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, + T1_FIELD_DICT_FONTDICT ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontExtraRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA + + T1_FIELD_NUM ( "FSType", fs_type, + T1_FIELD_DICT_FONTDICT ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_PrivateRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_PRIVATE + + T1_FIELD_NUM ( "UniqueID", unique_id, + T1_FIELD_DICT_FONTDICT | T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "lenIV", lenIV, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "LanguageGroup", language_group, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "password", password, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_FIXED_1000( "BlueScale", blue_scale, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "BlueShift", blue_shift, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "BlueFuzz", blue_fuzz, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_NUM_TABLE ( "BlueValues", blue_values, 14, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "OtherBlues", other_blues, 10, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "FamilyBlues", family_blues, 14, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "FamilyOtherBlues", family_other_blues, 10, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_NUM_TABLE2( "StdHW", standard_width, 1, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE2( "StdVW", standard_height, 1, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE2( "MinFeature", min_feature, 2, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_NUM_TABLE ( "StemSnapH", snap_widths, 12, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "StemSnapV", snap_heights, 12, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_FIXED ( "ExpansionFactor", expansion_factor, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_BOOL ( "ForceBold", force_bold, + T1_FIELD_DICT_PRIVATE ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FontRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_DICT + + T1_FIELD_KEY ( "FontName", font_name, T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "PaintType", paint_type, T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "FontType", font_type, T1_FIELD_DICT_FONTDICT ) + T1_FIELD_FIXED( "StrokeWidth", stroke_width, T1_FIELD_DICT_FONTDICT ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_BBox +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BBOX + + T1_FIELD_BBOX( "FontBBox", xMin, T1_FIELD_DICT_FONTDICT ) + + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FaceRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FACE + + T1_FIELD_NUM( "NDV", ndv_idx, T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM( "CDV", cdv_idx, T1_FIELD_DICT_PRIVATE ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_BlendRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BLEND + + T1_FIELD_NUM_TABLE( "DesignVector", default_design_vector, + T1_MAX_MM_DESIGNS, T1_FIELD_DICT_FONTDICT ) + + +#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type1/type1.c b/uppsrc/plugin/FT_fontsys/src/type1/type1.c new file mode 100644 index 000000000..df2baa57b --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type1/type1.c @@ -0,0 +1,33 @@ +/***************************************************************************/ +/* */ +/* type1.c */ +/* */ +/* FreeType Type 1 driver component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "t1parse.c" +#include "t1load.c" +#include "t1objs.c" +#include "t1driver.c" +#include "t1gload.c" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "t1afm.c" +#endif + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42drivr.c b/uppsrc/plugin/FT_fontsys/src/type42/t42drivr.c new file mode 100644 index 000000000..820c67961 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42drivr.c @@ -0,0 +1,246 @@ +/***************************************************************************/ +/* */ +/* t42drivr.c */ +/* */ +/* High-level Type 42 driver interface (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2007, 2009 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This driver implements Type42 fonts as described in the */ + /* Technical Note #5012 from Adobe, with these limitations: */ + /* */ + /* 1) CID Fonts are not currently supported. */ + /* 2) Incremental fonts making use of the GlyphDirectory keyword */ + /* will be loaded, but the rendering will be using the TrueType */ + /* tables. */ + /* 3) As for Type1 fonts, CDevProc is not supported. */ + /* 4) The Metrics dictionary is not supported. */ + /* 5) AFM metrics are not supported. */ + /* */ + /* In other words, this driver supports Type42 fonts derived from */ + /* TrueType fonts in a non-CID manner, as done by usual conversion */ + /* programs. */ + /* */ + /*************************************************************************/ + + +#include "t42drivr.h" +#include "t42objs.h" +#include "t42error.h" +#include FT_INTERNAL_DEBUG_H + +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + +#undef FT_COMPONENT +#define FT_COMPONENT trace_t42 + + + /* + * + * GLYPH DICT SERVICE + * + */ + + static FT_Error + t42_get_glyph_name( T42_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); + + return T42_Err_Ok; + } + + + static FT_UInt + t42_get_name_index( T42_Face face, + FT_String* glyph_name ) + { + FT_Int i; + FT_String* gname; + + + for ( i = 0; i < face->type1.num_glyphs; i++ ) + { + gname = face->type1.glyph_names[i]; + + if ( glyph_name[0] == gname[0] && !ft_strcmp( glyph_name, gname ) ) + return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] ); + } + + return 0; + } + + + static const FT_Service_GlyphDictRec t42_service_glyph_dict = + { + (FT_GlyphDict_GetNameFunc) t42_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)t42_get_name_index + }; + + + /* + * + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + t42_get_ps_font_name( T42_Face face ) + { + return (const char*)face->type1.font_name; + } + + + static const FT_Service_PsFontNameRec t42_service_ps_font_name = + { + (FT_PsName_GetFunc)t42_get_ps_font_name + }; + + + /* + * + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Error + t42_ps_get_font_info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + *afont_info = ((T42_Face)face)->type1.font_info; + + return T42_Err_Ok; + } + + + static FT_Error + t42_ps_get_font_extra( FT_Face face, + PS_FontExtraRec* afont_extra ) + { + *afont_extra = ((T42_Face)face)->type1.font_extra; + + return T42_Err_Ok; + } + + + static FT_Int + t42_ps_has_glyph_names( FT_Face face ) + { + FT_UNUSED( face ); + + return 1; + } + + + static FT_Error + t42_ps_get_font_private( FT_Face face, + PS_PrivateRec* afont_private ) + { + *afont_private = ((T42_Face)face)->type1.private_dict; + + return T42_Err_Ok; + } + + + static const FT_Service_PsInfoRec t42_service_ps_info = + { + (PS_GetFontInfoFunc) t42_ps_get_font_info, + (PS_GetFontExtraFunc) t42_ps_get_font_extra, + (PS_HasGlyphNamesFunc) t42_ps_has_glyph_names, + (PS_GetFontPrivateFunc)t42_ps_get_font_private + }; + + + /* + * + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec t42_services[] = + { + { FT_SERVICE_ID_GLYPH_DICT, &t42_service_glyph_dict }, + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &t42_service_ps_info }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_42 }, + { NULL, NULL } + }; + + + static FT_Module_Interface + T42_Get_Interface( FT_Driver driver, + const FT_String* t42_interface ) + { + FT_UNUSED( driver ); + + return ft_service_list_lookup( t42_services, t42_interface ); + } + + + const FT_Driver_ClassRec t42_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | +#ifdef TT_USE_BYTECODE_INTERPRETER + FT_MODULE_DRIVER_HAS_HINTER, +#else + 0, +#endif + + sizeof ( T42_DriverRec ), + + "type42", + 0x10000L, + 0x20000L, + + 0, /* format interface */ + + (FT_Module_Constructor)T42_Driver_Init, + (FT_Module_Destructor) T42_Driver_Done, + (FT_Module_Requester) T42_Get_Interface, + }, + + sizeof ( T42_FaceRec ), + sizeof ( T42_SizeRec ), + sizeof ( T42_GlyphSlotRec ), + + (FT_Face_InitFunc) T42_Face_Init, + (FT_Face_DoneFunc) T42_Face_Done, + (FT_Size_InitFunc) T42_Size_Init, + (FT_Size_DoneFunc) T42_Size_Done, + (FT_Slot_InitFunc) T42_GlyphSlot_Init, + (FT_Slot_DoneFunc) T42_GlyphSlot_Done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + (FT_Slot_LoadFunc) T42_GlyphSlot_Load, + + (FT_Face_GetKerningFunc) 0, + (FT_Face_AttachFunc) 0, + + (FT_Face_GetAdvancesFunc) 0, + (FT_Size_RequestFunc) T42_Size_Request, + (FT_Size_SelectFunc) T42_Size_Select + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42drivr.h b/uppsrc/plugin/FT_fontsys/src/type42/t42drivr.h new file mode 100644 index 000000000..12b3e4354 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42drivr.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* t42drivr.h */ +/* */ +/* High-level Type 42 driver interface (specification). */ +/* */ +/* Copyright 2002 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42DRIVR_H__ +#define __T42DRIVR_H__ + + +#include <freetype/ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) t42_driver_class; + + +FT_END_HEADER + + +#endif /* __T42DRIVR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42error.h b/uppsrc/plugin/FT_fontsys/src/type42/t42error.h new file mode 100644 index 000000000..b23091001 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42error.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* t42error.h */ +/* */ +/* Type 42 error codes (specification only). */ +/* */ +/* Copyright 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Type 42 error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __T42ERROR_H__ +#define __T42ERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX T42_Err_ +#define FT_ERR_BASE FT_Mod_Err_Type42 + +#include FT_ERRORS_H + +#endif /* __T42ERROR_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42objs.c b/uppsrc/plugin/FT_fontsys/src/type42/t42objs.c new file mode 100644 index 000000000..a5e0ee5e8 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42objs.c @@ -0,0 +1,652 @@ +/***************************************************************************/ +/* */ +/* t42objs.c */ +/* */ +/* Type 42 objects manager (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 */ +/* by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "t42objs.h" +#include "t42parse.h" +#include "t42error.h" +#include FT_INTERNAL_DEBUG_H +#include FT_LIST_H +#include FT_TRUETYPE_IDS_H + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_t42 + + + static FT_Error + T42_Open_Face( T42_Face face ) + { + T42_LoaderRec loader; + T42_Parser parser; + T1_Font type1 = &face->type1; + FT_Memory memory = face->root.memory; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + t42_loader_init( &loader, face ); + + parser = &loader.parser; + + if ( FT_ALLOC( face->ttf_data, 12 ) ) + goto Exit; + + error = t42_parser_init( parser, + face->root.stream, + memory, + psaux); + if ( error ) + goto Exit; + + error = t42_parse_dict( face, &loader, + parser->base_dict, parser->base_len ); + if ( error ) + goto Exit; + + if ( type1->font_type != 42 ) + { + error = T42_Err_Unknown_File_Format; + goto Exit; + } + + /* now, propagate the charstrings and glyphnames tables */ + /* to the Type1 data */ + type1->num_glyphs = loader.num_glyphs; + + if ( !loader.charstrings.init ) + { + FT_ERROR(( "T42_Open_Face: no charstrings array in face\n" )); + error = T42_Err_Invalid_File_Format; + } + + loader.charstrings.init = 0; + type1->charstrings_block = loader.charstrings.block; + type1->charstrings = loader.charstrings.elements; + type1->charstrings_len = loader.charstrings.lengths; + + /* we copy the glyph names `block' and `elements' fields; */ + /* the `lengths' field must be released later */ + type1->glyph_names_block = loader.glyph_names.block; + type1->glyph_names = (FT_String**)loader.glyph_names.elements; + loader.glyph_names.block = 0; + loader.glyph_names.elements = 0; + + /* we must now build type1.encoding when we have a custom array */ + if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY ) + { + FT_Int charcode, idx, min_char, max_char; + FT_Byte* char_name; + FT_Byte* glyph_name; + + + /* OK, we do the following: for each element in the encoding */ + /* table, look up the index of the glyph having the same name */ + /* as defined in the CharStrings array. */ + /* The index is then stored in type1.encoding.char_index, and */ + /* the name in type1.encoding.char_name */ + + min_char = 0; + max_char = 0; + + charcode = 0; + for ( ; charcode < loader.encoding_table.max_elems; charcode++ ) + { + type1->encoding.char_index[charcode] = 0; + type1->encoding.char_name [charcode] = (char *)".notdef"; + + char_name = loader.encoding_table.elements[charcode]; + if ( char_name ) + for ( idx = 0; idx < type1->num_glyphs; idx++ ) + { + glyph_name = (FT_Byte*)type1->glyph_names[idx]; + if ( ft_strcmp( (const char*)char_name, + (const char*)glyph_name ) == 0 ) + { + type1->encoding.char_index[charcode] = (FT_UShort)idx; + type1->encoding.char_name [charcode] = (char*)glyph_name; + + /* Change min/max encoded char only if glyph name is */ + /* not /.notdef */ + if ( ft_strcmp( (const char*)".notdef", + (const char*)glyph_name ) != 0 ) + { + if ( charcode < min_char ) + min_char = charcode; + if ( charcode >= max_char ) + max_char = charcode + 1; + } + break; + } + } + } + + type1->encoding.code_first = min_char; + type1->encoding.code_last = max_char; + type1->encoding.num_chars = loader.num_chars; + } + + Exit: + t42_loader_done( &loader ); + return error; + } + + + /***************** Driver Functions *************/ + + + FT_LOCAL_DEF( FT_Error ) + T42_Face_Init( FT_Stream stream, + T42_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Service_PsCMaps psnames; + PSAux_Service psaux; + FT_Face root = (FT_Face)&face->root; + T1_Font type1 = &face->type1; + PS_FontInfo info = &type1->font_info; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( face_index ); + FT_UNUSED( stream ); + + + face->ttf_face = NULL; + face->root.num_faces = 1; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + face->psnames = psnames; + + face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), + "psaux" ); + psaux = (PSAux_Service)face->psaux; + + /* open the tokenizer, this will also check the font format */ + error = T42_Open_Face( face ); + if ( error ) + goto Exit; + + /* if we just wanted to check the format, leave successfully now */ + if ( face_index < 0 ) + goto Exit; + + /* check the face index */ + if ( face_index > 0 ) + { + FT_ERROR(( "T42_Face_Init: invalid face index\n" )); + error = T42_Err_Invalid_Argument; + goto Exit; + } + + /* Now load the font program into the face object */ + + /* Init the face object fields */ + /* Now set up root face fields */ + + root->num_glyphs = type1->num_glyphs; + root->num_charmaps = 0; + root->face_index = 0; + + root->face_flags = FT_FACE_FLAG_SCALABLE | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_GLYPH_NAMES; + + if ( info->is_fixed_pitch ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* We only set this flag if we have the patented bytecode interpreter. */ + /* There are no known `tricky' Type42 fonts that could be loaded with */ + /* the unpatented interpreter. */ +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER + root->face_flags |= FT_FACE_FLAG_HINTER; +#endif + + /* XXX: TODO -- add kerning with .afm support */ + + /* get style name -- be careful, some broken fonts only */ + /* have a `/FontName' dictionary entry! */ + root->family_name = info->family_name; + /* assume "Regular" style if we don't know better */ + root->style_name = (char *)"Regular"; + if ( root->family_name ) + { + char* full = info->full_name; + char* family = root->family_name; + + + if ( full ) + { + while ( *full ) + { + if ( *full == *family ) + { + family++; + full++; + } + else + { + if ( *full == ' ' || *full == '-' ) + full++; + else if ( *family == ' ' || *family == '-' ) + family++; + else + { + if ( !*family ) + root->style_name = full; + break; + } + } + } + } + } + else + { + /* do we have a `/FontName'? */ + if ( type1->font_name ) + root->family_name = type1->font_name; + } + + /* no embedded bitmap support */ + root->num_fixed_sizes = 0; + root->available_sizes = 0; + + /* Load the TTF font embedded in the T42 font */ + { + FT_Open_Args args; + + + args.flags = FT_OPEN_MEMORY; + args.memory_base = face->ttf_data; + args.memory_size = face->ttf_size; + + if ( num_params ) + { + args.flags |= FT_OPEN_PARAMS; + args.num_params = num_params; + args.params = params; + } + + error = FT_Open_Face( FT_FACE_LIBRARY( face ), + &args, 0, &face->ttf_face ); + } + + if ( error ) + goto Exit; + + FT_Done_Size( face->ttf_face->size ); + + /* Ignore info in FontInfo dictionary and use the info from the */ + /* loaded TTF font. The PostScript interpreter also ignores it. */ + root->bbox = face->ttf_face->bbox; + root->units_per_EM = face->ttf_face->units_per_EM; + + root->ascender = face->ttf_face->ascender; + root->descender = face->ttf_face->descender; + root->height = face->ttf_face->height; + + root->max_advance_width = face->ttf_face->max_advance_width; + root->max_advance_height = face->ttf_face->max_advance_height; + + root->underline_position = (FT_Short)info->underline_position; + root->underline_thickness = (FT_Short)info->underline_thickness; + + /* compute style flags */ + root->style_flags = 0; + if ( info->italic_angle ) + root->style_flags |= FT_STYLE_FLAG_ITALIC; + + if ( face->ttf_face->style_flags & FT_STYLE_FLAG_BOLD ) + root->style_flags |= FT_STYLE_FLAG_BOLD; + + if ( face->ttf_face->face_flags & FT_FACE_FLAG_VERTICAL ) + root->face_flags |= FT_FACE_FLAG_VERTICAL; + + { + if ( psnames && psaux ) + { + FT_CharMapRec charmap; + T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes; + FT_CMap_Class clazz; + + + charmap.face = root; + + /* first of all, try to synthesize a Unicode charmap */ + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + charmap.encoding = FT_ENCODING_UNICODE; + + error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL ); + if ( error && FT_Err_No_Unicode_Glyph_Name != error ) + goto Exit; + error = FT_Err_Ok; + + /* now, generate an Adobe Standard encoding when appropriate */ + charmap.platform_id = TT_PLATFORM_ADOBE; + clazz = NULL; + + switch ( type1->encoding_type ) + { + case T1_ENCODING_TYPE_STANDARD: + charmap.encoding = FT_ENCODING_ADOBE_STANDARD; + charmap.encoding_id = TT_ADOBE_ID_STANDARD; + clazz = cmap_classes->standard; + break; + + case T1_ENCODING_TYPE_EXPERT: + charmap.encoding = FT_ENCODING_ADOBE_EXPERT; + charmap.encoding_id = TT_ADOBE_ID_EXPERT; + clazz = cmap_classes->expert; + break; + + case T1_ENCODING_TYPE_ARRAY: + charmap.encoding = FT_ENCODING_ADOBE_CUSTOM; + charmap.encoding_id = TT_ADOBE_ID_CUSTOM; + clazz = cmap_classes->custom; + break; + + case T1_ENCODING_TYPE_ISOLATIN1: + charmap.encoding = FT_ENCODING_ADOBE_LATIN_1; + charmap.encoding_id = TT_ADOBE_ID_LATIN_1; + clazz = cmap_classes->unicode; + break; + + default: + ; + } + + if ( clazz ) + error = FT_CMap_New( clazz, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( root->num_charmaps ) + root->charmap = root->charmaps[0]; +#endif + } + } + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + T42_Face_Done( T42_Face face ) + { + T1_Font type1; + PS_FontInfo info; + FT_Memory memory; + + + if ( !face ) + return; + + type1 = &face->type1; + info = &type1->font_info; + memory = face->root.memory; + + /* delete internal ttf face prior to freeing face->ttf_data */ + if ( face->ttf_face ) + FT_Done_Face( face->ttf_face ); + + /* release font info strings */ + FT_FREE( info->version ); + FT_FREE( info->notice ); + FT_FREE( info->full_name ); + FT_FREE( info->family_name ); + FT_FREE( info->weight ); + + /* release top dictionary */ + FT_FREE( type1->charstrings_len ); + FT_FREE( type1->charstrings ); + FT_FREE( type1->glyph_names ); + + FT_FREE( type1->charstrings_block ); + FT_FREE( type1->glyph_names_block ); + + FT_FREE( type1->encoding.char_index ); + FT_FREE( type1->encoding.char_name ); + FT_FREE( type1->font_name ); + + FT_FREE( face->ttf_data ); + +#if 0 + /* release afm data if present */ + if ( face->afm_data ) + T1_Done_AFM( memory, (T1_AFM*)face->afm_data ); +#endif + + /* release unicode map, if any */ + FT_FREE( face->unicode_map.maps ); + face->unicode_map.num_maps = 0; + + face->root.family_name = 0; + face->root.style_name = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* T42_Driver_Init */ + /* */ + /* <Description> */ + /* Initializes a given Type 42 driver object. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target driver object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T42_Driver_Init( T42_Driver driver ) + { + FT_Module ttmodule; + + + ttmodule = FT_Get_Module( FT_MODULE(driver)->library, "truetype" ); + driver->ttclazz = (FT_Driver_Class)ttmodule->clazz; + + return T42_Err_Ok; + } + + + FT_LOCAL_DEF( void ) + T42_Driver_Done( T42_Driver driver ) + { + FT_UNUSED( driver ); + } + + + FT_LOCAL_DEF( FT_Error ) + T42_Size_Init( T42_Size size ) + { + FT_Face face = size->root.face; + T42_Face t42face = (T42_Face)face; + FT_Size ttsize; + FT_Error error = T42_Err_Ok; + + + error = FT_New_Size( t42face->ttf_face, &ttsize ); + size->ttsize = ttsize; + + FT_Activate_Size( ttsize ); + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T42_Size_Request( T42_Size size, + FT_Size_Request req ) + { + T42_Face face = (T42_Face)size->root.face; + FT_Error error; + + + FT_Activate_Size( size->ttsize ); + + error = FT_Request_Size( face->ttf_face, req ); + if ( !error ) + ( (FT_Size)size )->metrics = face->ttf_face->size->metrics; + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T42_Size_Select( T42_Size size, + FT_ULong strike_index ) + { + T42_Face face = (T42_Face)size->root.face; + FT_Error error; + + + FT_Activate_Size( size->ttsize ); + + error = FT_Select_Size( face->ttf_face, (FT_Int)strike_index ); + if ( !error ) + ( (FT_Size)size )->metrics = face->ttf_face->size->metrics; + + return error; + + } + + + FT_LOCAL_DEF( void ) + T42_Size_Done( T42_Size size ) + { + FT_Face face = size->root.face; + T42_Face t42face = (T42_Face)face; + FT_ListNode node; + + + node = FT_List_Find( &t42face->ttf_face->sizes_list, size->ttsize ); + if ( node ) + { + FT_Done_Size( size->ttsize ); + size->ttsize = NULL; + } + } + + + FT_LOCAL_DEF( FT_Error ) + T42_GlyphSlot_Init( T42_GlyphSlot slot ) + { + FT_Face face = slot->root.face; + T42_Face t42face = (T42_Face)face; + FT_GlyphSlot ttslot; + FT_Error error = T42_Err_Ok; + + + if ( face->glyph == NULL ) + { + /* First glyph slot for this face */ + slot->ttslot = t42face->ttf_face->glyph; + } + else + { + error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot ); + slot->ttslot = ttslot; + } + + return error; + } + + + FT_LOCAL_DEF( void ) + T42_GlyphSlot_Done( T42_GlyphSlot slot ) + { + FT_Done_GlyphSlot( slot->ttslot ); + } + + + static void + t42_glyphslot_clear( FT_GlyphSlot slot ) + { + /* free bitmap if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* clear all public fields in the glyph slot */ + FT_ZERO( &slot->metrics ); + FT_ZERO( &slot->outline ); + FT_ZERO( &slot->bitmap ); + + slot->bitmap_left = 0; + slot->bitmap_top = 0; + slot->num_subglyphs = 0; + slot->subglyphs = 0; + slot->control_data = 0; + slot->control_len = 0; + slot->other = 0; + slot->format = FT_GLYPH_FORMAT_NONE; + + slot->linearHoriAdvance = 0; + slot->linearVertAdvance = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + T42_GlyphSlot_Load( FT_GlyphSlot glyph, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + T42_GlyphSlot t42slot = (T42_GlyphSlot)glyph; + T42_Size t42size = (T42_Size)size; + FT_Driver_Class ttclazz = ((T42_Driver)glyph->face->driver)->ttclazz; + + + t42_glyphslot_clear( t42slot->ttslot ); + error = ttclazz->load_glyph( t42slot->ttslot, + t42size->ttsize, + glyph_index, + load_flags | FT_LOAD_NO_BITMAP ); + + if ( !error ) + { + glyph->metrics = t42slot->ttslot->metrics; + + glyph->linearHoriAdvance = t42slot->ttslot->linearHoriAdvance; + glyph->linearVertAdvance = t42slot->ttslot->linearVertAdvance; + + glyph->format = t42slot->ttslot->format; + glyph->outline = t42slot->ttslot->outline; + + glyph->bitmap = t42slot->ttslot->bitmap; + glyph->bitmap_left = t42slot->ttslot->bitmap_left; + glyph->bitmap_top = t42slot->ttslot->bitmap_top; + + glyph->num_subglyphs = t42slot->ttslot->num_subglyphs; + glyph->subglyphs = t42slot->ttslot->subglyphs; + + glyph->control_data = t42slot->ttslot->control_data; + glyph->control_len = t42slot->ttslot->control_len; + } + + return error; + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42objs.h b/uppsrc/plugin/FT_fontsys/src/type42/t42objs.h new file mode 100644 index 000000000..baa24a2bd --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42objs.h @@ -0,0 +1,124 @@ +/***************************************************************************/ +/* */ +/* t42objs.h */ +/* */ +/* Type 42 objects manager (specification). */ +/* */ +/* Copyright 2002, 2003, 2006, 2007 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42OBJS_H__ +#define __T42OBJS_H__ + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include "t42types.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DRIVER_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /* Type42 size */ + typedef struct T42_SizeRec_ + { + FT_SizeRec root; + FT_Size ttsize; + + } T42_SizeRec, *T42_Size; + + + /* Type42 slot */ + typedef struct T42_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + FT_GlyphSlot ttslot; + + } T42_GlyphSlotRec, *T42_GlyphSlot; + + + /* Type 42 driver */ + typedef struct T42_DriverRec_ + { + FT_DriverRec root; + FT_Driver_Class ttclazz; + void* extension_component; + + } T42_DriverRec, *T42_Driver; + + + /* */ + + + FT_LOCAL( FT_Error ) + T42_Face_Init( FT_Stream stream, + T42_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + + FT_LOCAL( void ) + T42_Face_Done( T42_Face face ); + + + FT_LOCAL( FT_Error ) + T42_Size_Init( T42_Size size ); + + + FT_LOCAL( FT_Error ) + T42_Size_Request( T42_Size size, + FT_Size_Request req ); + + + FT_LOCAL( FT_Error ) + T42_Size_Select( T42_Size size, + FT_ULong strike_index ); + + + FT_LOCAL( void ) + T42_Size_Done( T42_Size size ); + + + FT_LOCAL( FT_Error ) + T42_GlyphSlot_Init( T42_GlyphSlot slot ); + + + FT_LOCAL( FT_Error ) + T42_GlyphSlot_Load( FT_GlyphSlot glyph, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + FT_LOCAL( void ) + T42_GlyphSlot_Done( T42_GlyphSlot slot ); + + + FT_LOCAL( FT_Error ) + T42_Driver_Init( T42_Driver driver ); + + FT_LOCAL( void ) + T42_Driver_Done( T42_Driver driver ); + + /* */ + +FT_END_HEADER + + +#endif /* __T42OBJS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42parse.c b/uppsrc/plugin/FT_fontsys/src/type42/t42parse.c new file mode 100644 index 000000000..577426917 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42parse.c @@ -0,0 +1,1187 @@ +/***************************************************************************/ +/* */ +/* t42parse.c */ +/* */ +/* Type 42 font parser (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */ +/* Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "t42parse.h" +#include "t42error.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t42 + + + static void + t42_parse_font_matrix( T42_Face face, + T42_Loader loader ); + static void + t42_parse_encoding( T42_Face face, + T42_Loader loader ); + + static void + t42_parse_charstrings( T42_Face face, + T42_Loader loader ); + + static void + t42_parse_sfnts( T42_Face face, + T42_Loader loader ); + + + /* as Type42 fonts have no Private dict, */ + /* we set the last argument of T1_FIELD_XXX to 0 */ + static const + T1_FieldRec t42_keywords[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FontInfo +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_INFO + + T1_FIELD_STRING( "version", version, 0 ) + T1_FIELD_STRING( "Notice", notice, 0 ) + T1_FIELD_STRING( "FullName", full_name, 0 ) + T1_FIELD_STRING( "FamilyName", family_name, 0 ) + T1_FIELD_STRING( "Weight", weight, 0 ) + T1_FIELD_NUM ( "ItalicAngle", italic_angle, 0 ) + T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, 0 ) + T1_FIELD_NUM ( "UnderlinePosition", underline_position, 0 ) + T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontExtraRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA + + T1_FIELD_NUM ( "FSType", fs_type, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FontRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_DICT + + T1_FIELD_KEY ( "FontName", font_name, 0 ) + T1_FIELD_NUM ( "PaintType", paint_type, 0 ) + T1_FIELD_NUM ( "FontType", font_type, 0 ) + T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_BBox +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BBOX + + T1_FIELD_BBOX("FontBBox", xMin, 0 ) + + T1_FIELD_CALLBACK( "FontMatrix", t42_parse_font_matrix, 0 ) + T1_FIELD_CALLBACK( "Encoding", t42_parse_encoding, 0 ) + T1_FIELD_CALLBACK( "CharStrings", t42_parse_charstrings, 0 ) + T1_FIELD_CALLBACK( "sfnts", t42_parse_sfnts, 0 ) + + { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } + }; + + +#define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l ) +#define T1_Done_Table( p ) \ + do \ + { \ + if ( (p)->funcs.done ) \ + (p)->funcs.done( p ); \ + } while ( 0 ) +#define T1_Release_Table( p ) \ + do \ + { \ + if ( (p)->funcs.release ) \ + (p)->funcs.release( p ); \ + } while ( 0 ) + +#define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root ) +#define T1_Skip_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root ) + +#define T1_ToInt( p ) \ + (p)->root.funcs.to_int( &(p)->root ) +#define T1_ToBytes( p, b, m, n, d ) \ + (p)->root.funcs.to_bytes( &(p)->root, b, m, n, d ) + +#define T1_ToFixedArray( p, m, f, t ) \ + (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) +#define T1_ToToken( p, t ) \ + (p)->root.funcs.to_token( &(p)->root, t ) + +#define T1_Load_Field( p, f, o, m, pf ) \ + (p)->root.funcs.load_field( &(p)->root, f, o, m, pf ) +#define T1_Load_Field_Table( p, f, o, m, pf ) \ + (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf ) + + + /********************* Parsing Functions ******************/ + + FT_LOCAL_DEF( FT_Error ) + t42_parser_init( T42_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ) + { + FT_Error error = T42_Err_Ok; + FT_Long size; + + + psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); + + parser->stream = stream; + parser->base_len = 0; + parser->base_dict = 0; + parser->in_memory = 0; + + /*******************************************************************/ + /* */ + /* Here a short summary of what is going on: */ + /* */ + /* When creating a new Type 42 parser, we try to locate and load */ + /* the base dictionary, loading the whole font into memory. */ + /* */ + /* When `loading' the base dictionary, we only set up pointers */ + /* in the case of a memory-based stream. Otherwise, we allocate */ + /* and load the base dictionary in it. */ + /* */ + /* parser->in_memory is set if we have a memory stream. */ + /* */ + + if ( FT_STREAM_SEEK( 0L ) || + FT_FRAME_ENTER( 17 ) ) + goto Exit; + + if ( ft_memcmp( stream->cursor, "%!PS-TrueTypeFont", 17 ) != 0 ) + { + FT_TRACE2(( "not a Type42 font\n" )); + error = T42_Err_Unknown_File_Format; + } + + FT_FRAME_EXIT(); + + if ( error || FT_STREAM_SEEK( 0 ) ) + goto Exit; + + size = stream->size; + + /* now, try to load `size' bytes of the `base' dictionary we */ + /* found previously */ + + /* if it is a memory-based resource, set up pointers */ + if ( !stream->read ) + { + parser->base_dict = (FT_Byte*)stream->base + stream->pos; + parser->base_len = size; + parser->in_memory = 1; + + /* check that the `size' field is valid */ + if ( FT_STREAM_SKIP( size ) ) + goto Exit; + } + else + { + /* read segment in memory */ + if ( FT_ALLOC( parser->base_dict, size ) || + FT_STREAM_READ( parser->base_dict, size ) ) + goto Exit; + + parser->base_len = size; + } + + parser->root.base = parser->base_dict; + parser->root.cursor = parser->base_dict; + parser->root.limit = parser->root.cursor + parser->base_len; + + Exit: + if ( error && !parser->in_memory ) + FT_FREE( parser->base_dict ); + + return error; + } + + + FT_LOCAL_DEF( void ) + t42_parser_done( T42_Parser parser ) + { + FT_Memory memory = parser->root.memory; + + + /* free the base dictionary only when we have a disk stream */ + if ( !parser->in_memory ) + FT_FREE( parser->base_dict ); + + parser->root.funcs.done( &parser->root ); + } + + + static int + t42_is_space( FT_Byte c ) + { + return ( c == ' ' || c == '\t' || + c == '\r' || c == '\n' || c == '\f' || + c == '\0' ); + } + + + static void + t42_parse_font_matrix( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + FT_Matrix* matrix = &face->type1.font_matrix; + FT_Vector* offset = &face->type1.font_offset; + FT_Face root = (FT_Face)&face->root; + FT_Fixed temp[6]; + FT_Fixed temp_scale; + + + (void)T1_ToFixedArray( parser, 6, temp, 3 ); + + temp_scale = FT_ABS( temp[3] ); + + /* Set Units per EM based on FontMatrix values. We set the value to */ + /* 1000 / temp_scale, because temp_scale was already multiplied by */ + /* 1000 (in t1_tofixed, from psobjs.c). */ + + root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L, + temp_scale ) >> 16 ); + + /* we need to scale the values by 1.0/temp_scale */ + if ( temp_scale != 0x10000L ) + { + temp[0] = FT_DivFix( temp[0], temp_scale ); + temp[1] = FT_DivFix( temp[1], temp_scale ); + temp[2] = FT_DivFix( temp[2], temp_scale ); + temp[4] = FT_DivFix( temp[4], temp_scale ); + temp[5] = FT_DivFix( temp[5], temp_scale ); + temp[3] = 0x10000L; + } + + matrix->xx = temp[0]; + matrix->yx = temp[1]; + matrix->xy = temp[2]; + matrix->yy = temp[3]; + + /* note that the offsets must be expressed in integer font units */ + offset->x = temp[4] >> 16; + offset->y = temp[5] >> 16; + } + + + static void + t42_parse_encoding( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + T1_Skip_Spaces( parser ); + cur = parser->root.cursor; + if ( cur >= limit ) + { + FT_ERROR(( "t42_parse_encoding: out of bounds\n" )); + parser->root.error = T42_Err_Invalid_File_Format; + return; + } + + /* if we have a number or `[', the encoding is an array, */ + /* and we must load it now */ + if ( ft_isdigit( *cur ) || *cur == '[' ) + { + T1_Encoding encode = &face->type1.encoding; + FT_UInt count, n; + PS_Table char_table = &loader->encoding_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + FT_Bool only_immediates = 0; + + + /* read the number of entries in the encoding; should be 256 */ + if ( *cur == '[' ) + { + count = 256; + only_immediates = 1; + parser->root.cursor++; + } + else + count = (FT_UInt)T1_ToInt( parser ); + + T1_Skip_Spaces( parser ); + if ( parser->root.cursor >= limit ) + return; + + /* we use a T1_Table to store our charnames */ + loader->num_chars = encode->num_chars = count; + if ( FT_NEW_ARRAY( encode->char_index, count ) || + FT_NEW_ARRAY( encode->char_name, count ) || + FT_SET_ERROR( psaux->ps_table_funcs->init( + char_table, count, memory ) ) ) + { + parser->root.error = error; + return; + } + + /* We need to `zero' out encoding_table.elements */ + for ( n = 0; n < count; n++ ) + { + char* notdef = (char *)".notdef"; + + + T1_Add_Table( char_table, n, notdef, 8 ); + } + + /* Now we need to read records of the form */ + /* */ + /* ... charcode /charname ... */ + /* */ + /* for each entry in our table. */ + /* */ + /* We simply look for a number followed by an immediate */ + /* name. Note that this ignores correctly the sequence */ + /* that is often seen in type42 fonts: */ + /* */ + /* 0 1 255 { 1 index exch /.notdef put } for dup */ + /* */ + /* used to clean the encoding array before anything else. */ + /* */ + /* Alternatively, if the array is directly given as */ + /* */ + /* /Encoding [ ... ] */ + /* */ + /* we only read immediates. */ + + n = 0; + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + cur = parser->root.cursor; + + /* we stop when we encounter `def' or `]' */ + if ( *cur == 'd' && cur + 3 < limit ) + { + if ( cur[1] == 'e' && + cur[2] == 'f' && + t42_is_space( cur[3] ) ) + { + FT_TRACE6(( "encoding end\n" )); + cur += 3; + break; + } + } + if ( *cur == ']' ) + { + FT_TRACE6(( "encoding end\n" )); + cur++; + break; + } + + /* check whether we have found an entry */ + if ( ft_isdigit( *cur ) || only_immediates ) + { + FT_Int charcode; + + + if ( only_immediates ) + charcode = n; + else + { + charcode = (FT_Int)T1_ToInt( parser ); + T1_Skip_Spaces( parser ); + } + + cur = parser->root.cursor; + + if ( *cur == '/' && cur + 2 < limit && n < count ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + len = parser->root.cursor - cur; + + parser->root.error = T1_Add_Table( char_table, charcode, + cur, len + 1 ); + if ( parser->root.error ) + return; + char_table->elements[charcode][len] = '\0'; + + n++; + } + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + } + + T1_Skip_Spaces( parser ); + } + + face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY; + parser->root.cursor = cur; + } + + /* Otherwise, we should have either `StandardEncoding', */ + /* `ExpertEncoding', or `ISOLatin1Encoding' */ + else + { + if ( cur + 17 < limit && + ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD; + + else if ( cur + 15 < limit && + ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT; + + else if ( cur + 18 < limit && + ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1; + + else + { + FT_ERROR(( "t42_parse_encoding: invalid token\n" )); + parser->root.error = T42_Err_Invalid_File_Format; + } + } + } + + + typedef enum T42_Load_Status_ + { + BEFORE_START, + BEFORE_TABLE_DIR, + OTHER_TABLES + + } T42_Load_Status; + + + static void + t42_parse_sfnts( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + FT_Memory memory = parser->root.memory; + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + FT_Error error; + FT_Int num_tables = 0; + FT_ULong count, ttf_size = 0; + + FT_Long n, string_size, old_string_size, real_size; + FT_Byte* string_buf = NULL; + FT_Bool allocated = 0; + + T42_Load_Status status; + + + /* The format is */ + /* */ + /* /sfnts [ <hexstring> <hexstring> ... ] def */ + /* */ + /* or */ + /* */ + /* /sfnts [ */ + /* <num_bin_bytes> RD <binary data> */ + /* <num_bin_bytes> RD <binary data> */ + /* ... */ + /* ] def */ + /* */ + /* with exactly one space after the `RD' token. */ + + T1_Skip_Spaces( parser ); + + if ( parser->root.cursor >= limit || *parser->root.cursor++ != '[' ) + { + FT_ERROR(( "t42_parse_sfnts: can't find begin of sfnts vector\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + T1_Skip_Spaces( parser ); + status = BEFORE_START; + string_size = 0; + old_string_size = 0; + count = 0; + + while ( parser->root.cursor < limit ) + { + cur = parser->root.cursor; + + if ( *cur == ']' ) + { + parser->root.cursor++; + goto Exit; + } + + else if ( *cur == '<' ) + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + + /* don't include delimiters */ + string_size = (FT_Long)( ( parser->root.cursor - cur - 2 + 1 ) / 2 ); + if ( FT_REALLOC( string_buf, old_string_size, string_size ) ) + goto Fail; + + allocated = 1; + + parser->root.cursor = cur; + (void)T1_ToBytes( parser, string_buf, string_size, &real_size, 1 ); + old_string_size = string_size; + string_size = real_size; + } + + else if ( ft_isdigit( *cur ) ) + { + if ( allocated ) + { + FT_ERROR(( "t42_parse_sfnts: " + "can't handle mixed binary and hex strings\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + string_size = T1_ToInt( parser ); + if ( string_size < 0 ) + { + FT_ERROR(( "t42_parse_sfnts: invalid string size\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + T1_Skip_PS_Token( parser ); /* `RD' */ + if ( parser->root.error ) + return; + + string_buf = parser->root.cursor + 1; /* one space after `RD' */ + + if ( limit - parser->root.cursor < string_size ) + { + FT_ERROR(( "t42_parse_sfnts: too many binary data\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + else + parser->root.cursor += string_size + 1; + } + + if ( !string_buf ) + { + FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + /* A string can have a trailing zero byte for padding. Ignore it. */ + if ( string_buf[string_size - 1] == 0 && ( string_size % 2 == 1 ) ) + string_size--; + + if ( !string_size ) + { + FT_ERROR(( "t42_parse_sfnts: invalid string\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + for ( n = 0; n < string_size; n++ ) + { + switch ( status ) + { + case BEFORE_START: + /* load offset table, 12 bytes */ + if ( count < 12 ) + { + face->ttf_data[count++] = string_buf[n]; + continue; + } + else + { + num_tables = 16 * face->ttf_data[4] + face->ttf_data[5]; + status = BEFORE_TABLE_DIR; + ttf_size = 12 + 16 * num_tables; + + if ( FT_REALLOC( face->ttf_data, 12, ttf_size ) ) + goto Fail; + } + /* fall through */ + + case BEFORE_TABLE_DIR: + /* the offset table is read; read the table directory */ + if ( count < ttf_size ) + { + face->ttf_data[count++] = string_buf[n]; + continue; + } + else + { + int i; + FT_ULong len; + + + for ( i = 0; i < num_tables; i++ ) + { + FT_Byte* p = face->ttf_data + 12 + 16 * i + 12; + + + len = FT_PEEK_ULONG( p ); + + /* Pad to a 4-byte boundary length */ + ttf_size += ( len + 3 ) & ~3; + } + + status = OTHER_TABLES; + face->ttf_size = ttf_size; + + /* there are no more than 256 tables, so no size check here */ + if ( FT_REALLOC( face->ttf_data, 12 + 16 * num_tables, + ttf_size + 1 ) ) + goto Fail; + } + /* fall through */ + + case OTHER_TABLES: + /* all other tables are just copied */ + if ( count >= ttf_size ) + { + FT_ERROR(( "t42_parse_sfnts: too many binary data\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + face->ttf_data[count++] = string_buf[n]; + } + } + + T1_Skip_Spaces( parser ); + } + + /* if control reaches this point, the format was not valid */ + error = T42_Err_Invalid_File_Format; + + Fail: + parser->root.error = error; + + Exit: + if ( allocated ) + FT_FREE( string_buf ); + } + + + static void + t42_parse_charstrings( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + PS_Table code_table = &loader->charstrings; + PS_Table name_table = &loader->glyph_names; + PS_Table swap_table = &loader->swap_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + FT_UInt n; + FT_UInt notdef_index = 0; + FT_Byte notdef_found = 0; + + + T1_Skip_Spaces( parser ); + + if ( parser->root.cursor >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + if ( ft_isdigit( *parser->root.cursor ) ) + { + loader->num_glyphs = (FT_UInt)T1_ToInt( parser ); + if ( parser->root.error ) + return; + } + else if ( *parser->root.cursor == '<' ) + { + /* We have `<< ... >>'. Count the number of `/' in the dictionary */ + /* to get its size. */ + FT_UInt count = 0; + + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + T1_Skip_Spaces( parser ); + cur = parser->root.cursor; + + while ( parser->root.cursor < limit ) + { + if ( *parser->root.cursor == '/' ) + count++; + else if ( *parser->root.cursor == '>' ) + { + loader->num_glyphs = count; + parser->root.cursor = cur; /* rewind */ + break; + } + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + T1_Skip_Spaces( parser ); + } + } + else + { + FT_ERROR(( "t42_parse_charstrings: invalid token\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + if ( parser->root.cursor >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + /* initialize tables */ + + error = psaux->ps_table_funcs->init( code_table, + loader->num_glyphs, + memory ); + if ( error ) + goto Fail; + + error = psaux->ps_table_funcs->init( name_table, + loader->num_glyphs, + memory ); + if ( error ) + goto Fail; + + /* Initialize table for swapping index notdef_index and */ + /* index 0 names and codes (if necessary). */ + + error = psaux->ps_table_funcs->init( swap_table, 4, memory ); + if ( error ) + goto Fail; + + n = 0; + + for (;;) + { + /* The format is simple: */ + /* `/glyphname' + index [+ def] */ + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + if ( cur >= limit ) + break; + + /* We stop when we find an `end' keyword or '>' */ + if ( *cur == 'e' && + cur + 3 < limit && + cur[1] == 'n' && + cur[2] == 'd' && + t42_is_space( cur[3] ) ) + break; + if ( *cur == '>' ) + break; + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + if ( *cur == '/' ) + { + FT_PtrDist len; + + + if ( cur + 1 >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + cur++; /* skip `/' */ + len = parser->root.cursor - cur; + + error = T1_Add_Table( name_table, n, cur, len + 1 ); + if ( error ) + goto Fail; + + /* add a trailing zero to the name table */ + name_table->elements[n][len] = '\0'; + + /* record index of /.notdef */ + if ( *cur == '.' && + ft_strcmp( ".notdef", + (const char*)(name_table->elements[n]) ) == 0 ) + { + notdef_index = n; + notdef_found = 1; + } + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + + (void)T1_ToInt( parser ); + if ( parser->root.cursor >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + len = parser->root.cursor - cur; + + error = T1_Add_Table( code_table, n, cur, len + 1 ); + if ( error ) + goto Fail; + + code_table->elements[n][len] = '\0'; + + n++; + if ( n >= loader->num_glyphs ) + break; + } + } + + loader->num_glyphs = n; + + if ( !notdef_found ) + { + FT_ERROR(( "t42_parse_charstrings: no /.notdef glyph\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + /* if /.notdef does not occupy index 0, do our magic. */ + if ( ft_strcmp( (const char*)".notdef", + (const char*)name_table->elements[0] ) ) + { + /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */ + /* name and code entries to swap_table. Then place notdef_index */ + /* name and code entries into swap_table. Then swap name and code */ + /* entries at indices notdef_index and 0 using values stored in */ + /* swap_table. */ + + /* Index 0 name */ + error = T1_Add_Table( swap_table, 0, + name_table->elements[0], + name_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index 0 code */ + error = T1_Add_Table( swap_table, 1, + code_table->elements[0], + code_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index notdef_index name */ + error = T1_Add_Table( swap_table, 2, + name_table->elements[notdef_index], + name_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + /* Index notdef_index code */ + error = T1_Add_Table( swap_table, 3, + code_table->elements[notdef_index], + code_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, notdef_index, + swap_table->elements[0], + swap_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, notdef_index, + swap_table->elements[1], + swap_table->lengths [1] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, 0, + swap_table->elements[2], + swap_table->lengths [2] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, 0, + swap_table->elements[3], + swap_table->lengths [3] ); + if ( error ) + goto Fail; + + } + + return; + + Fail: + parser->root.error = error; + } + + + static FT_Error + t42_load_keyword( T42_Face face, + T42_Loader loader, + T1_Field field ) + { + FT_Error error; + void* dummy_object; + void** objects; + FT_UInt max_objects = 0; + + + /* if the keyword has a dedicated callback, call it */ + if ( field->type == T1_FIELD_TYPE_CALLBACK ) + { + field->reader( (FT_Face)face, loader ); + error = loader->parser.root.error; + goto Exit; + } + + /* now the keyword is either a simple field or a table of fields; */ + /* we are now going to take care of it */ + + switch ( field->location ) + { + case T1_FIELD_LOCATION_FONT_INFO: + dummy_object = &face->type1.font_info; + break; + + case T1_FIELD_LOCATION_FONT_EXTRA: + dummy_object = &face->type1.font_extra; + break; + + case T1_FIELD_LOCATION_BBOX: + dummy_object = &face->type1.font_bbox; + break; + + default: + dummy_object = &face->type1; + } + + objects = &dummy_object; + + if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY || + field->type == T1_FIELD_TYPE_FIXED_ARRAY ) + error = T1_Load_Field_Table( &loader->parser, field, + objects, max_objects, 0 ); + else + error = T1_Load_Field( &loader->parser, field, + objects, max_objects, 0 ); + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + t42_parse_dict( T42_Face face, + T42_Loader loader, + FT_Byte* base, + FT_Long size ) + { + T42_Parser parser = &loader->parser; + FT_Byte* limit; + FT_Int n_keywords = (FT_Int)( sizeof ( t42_keywords ) / + sizeof ( t42_keywords[0] ) ); + + + parser->root.cursor = base; + parser->root.limit = base + size; + parser->root.error = T42_Err_Ok; + + limit = parser->root.limit; + + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + FT_Byte* cur; + + + cur = parser->root.cursor; + + /* look for `FontDirectory' which causes problems for some fonts */ + if ( *cur == 'F' && cur + 25 < limit && + ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 ) + { + FT_Byte* cur2; + + + /* skip the `FontDirectory' keyword */ + T1_Skip_PS_Token( parser ); + T1_Skip_Spaces ( parser ); + cur = cur2 = parser->root.cursor; + + /* look up the `known' keyword */ + while ( cur < limit ) + { + if ( *cur == 'k' && cur + 5 < limit && + ft_strncmp( (char*)cur, "known", 5 ) == 0 ) + break; + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + T1_Skip_Spaces ( parser ); + cur = parser->root.cursor; + } + + if ( cur < limit ) + { + T1_TokenRec token; + + + /* skip the `known' keyword and the token following it */ + T1_Skip_PS_Token( parser ); + T1_ToToken( parser, &token ); + + /* if the last token was an array, skip it! */ + if ( token.type == T1_TOKEN_TYPE_ARRAY ) + cur2 = parser->root.cursor; + } + parser->root.cursor = cur2; + } + + /* look for immediates */ + else if ( *cur == '/' && cur + 2 < limit ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + + len = parser->root.cursor - cur; + + if ( len > 0 && len < 22 && parser->root.cursor < limit ) + { + int i; + + + /* now compare the immediate name to the keyword table */ + + /* loop through all known keywords */ + for ( i = 0; i < n_keywords; i++ ) + { + T1_Field keyword = (T1_Field)&t42_keywords[i]; + FT_Byte *name = (FT_Byte*)keyword->ident; + + + if ( !name ) + continue; + + if ( cur[0] == name[0] && + len == (FT_PtrDist)ft_strlen( (const char *)name ) && + ft_memcmp( cur, name, len ) == 0 ) + { + /* we found it -- run the parsing callback! */ + parser->root.error = t42_load_keyword( face, + loader, + keyword ); + if ( parser->root.error ) + return parser->root.error; + break; + } + } + } + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + } + + T1_Skip_Spaces( parser ); + } + + Exit: + return parser->root.error; + } + + + FT_LOCAL_DEF( void ) + t42_loader_init( T42_Loader loader, + T42_Face face ) + { + FT_UNUSED( face ); + + FT_MEM_ZERO( loader, sizeof ( *loader ) ); + loader->num_glyphs = 0; + loader->num_chars = 0; + + /* initialize the tables -- simply set their `init' field to 0 */ + loader->encoding_table.init = 0; + loader->charstrings.init = 0; + loader->glyph_names.init = 0; + } + + + FT_LOCAL_DEF( void ) + t42_loader_done( T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + + + /* finalize tables */ + T1_Release_Table( &loader->encoding_table ); + T1_Release_Table( &loader->charstrings ); + T1_Release_Table( &loader->glyph_names ); + T1_Release_Table( &loader->swap_table ); + + /* finalize parser */ + t42_parser_done( parser ); + } + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42parse.h b/uppsrc/plugin/FT_fontsys/src/type42/t42parse.h new file mode 100644 index 000000000..f77ec4af4 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42parse.h @@ -0,0 +1,90 @@ +/***************************************************************************/ +/* */ +/* t42parse.h */ +/* */ +/* Type 42 font parser (specification). */ +/* */ +/* Copyright 2002, 2003 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42PARSE_H__ +#define __T42PARSE_H__ + + +#include "t42objs.h" +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + typedef struct T42_ParserRec_ + { + PS_ParserRec root; + FT_Stream stream; + + FT_Byte* base_dict; + FT_Long base_len; + + FT_Bool in_memory; + + } T42_ParserRec, *T42_Parser; + + + typedef struct T42_Loader_ + { + T42_ParserRec parser; /* parser used to read the stream */ + + FT_UInt num_chars; /* number of characters in encoding */ + PS_TableRec encoding_table; /* PS_Table used to store the */ + /* encoding character names */ + + FT_UInt num_glyphs; + PS_TableRec glyph_names; + PS_TableRec charstrings; + PS_TableRec swap_table; /* For moving .notdef glyph to index 0. */ + + } T42_LoaderRec, *T42_Loader; + + + FT_LOCAL( FT_Error ) + t42_parser_init( T42_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ); + + FT_LOCAL( void ) + t42_parser_done( T42_Parser parser ); + + + FT_LOCAL( FT_Error ) + t42_parse_dict( T42_Face face, + T42_Loader loader, + FT_Byte* base, + FT_Long size ); + + + FT_LOCAL( void ) + t42_loader_init( T42_Loader loader, + T42_Face face ); + + FT_LOCAL( void ) + t42_loader_done( T42_Loader loader ); + + + /* */ + +FT_END_HEADER + + +#endif /* __T42PARSE_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/t42types.h b/uppsrc/plugin/FT_fontsys/src/type42/t42types.h new file mode 100644 index 000000000..a661c4366 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/t42types.h @@ -0,0 +1,56 @@ +/***************************************************************************/ +/* */ +/* t42types.h */ +/* */ +/* Type 42 font data types (specification only). */ +/* */ +/* Copyright 2002, 2003, 2006, 2008 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42TYPES_H__ +#define __T42TYPES_H__ + + +#include <freetype/ft2build.h> +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + typedef struct T42_FaceRec_ + { + FT_FaceRec root; + T1_FontRec type1; + const void* psnames; + const void* psaux; +#if 0 + const void* afm_data; +#endif + FT_Byte* ttf_data; + FT_ULong ttf_size; + FT_Face ttf_face; + FT_CharMapRec charmaprecs[2]; + FT_CharMap charmaps[2]; + PS_UnicodesRec unicode_map; + + } T42_FaceRec, *T42_Face; + + +FT_END_HEADER + +#endif /* __T42TYPES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/type42/type42.c b/uppsrc/plugin/FT_fontsys/src/type42/type42.c new file mode 100644 index 000000000..c62a2d410 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/type42/type42.c @@ -0,0 +1,25 @@ +/***************************************************************************/ +/* */ +/* type42.c */ +/* */ +/* FreeType Type 42 driver component. */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <freetype/ft2build.h> +#include "t42objs.c" +#include "t42parse.c" +#include "t42drivr.c" + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/winfonts/fnterrs.h b/uppsrc/plugin/FT_fontsys/src/winfonts/fnterrs.h new file mode 100644 index 000000000..ea8090971 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/winfonts/fnterrs.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* fnterrs.h */ +/* */ +/* Win FNT/FON error codes (specification only). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Windows FNT/FON error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __FNTERRS_H__ +#define __FNTERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#define FT_ERR_PREFIX FNT_Err_ +#define FT_ERR_BASE FT_Mod_Err_Winfonts + +#include FT_ERRORS_H + +#endif /* __FNTERRS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.c b/uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.c new file mode 100644 index 000000000..1bb3003bf --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.c @@ -0,0 +1,1145 @@ +/***************************************************************************/ +/* */ +/* winfnt.c */ +/* */ +/* FreeType font driver for Windows FNT/FON files */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* Copyright 2003 Huw D M Davies for Codeweavers */ +/* Copyright 2007 Dmitry Timoshkov for Codeweavers */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <freetype/ft2build.h> +#include FT_WINFONTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H +#include FT_TRUETYPE_IDS_H + +#include "winfnt.h" +#include "fnterrs.h" +#include FT_SERVICE_WINFNT_H +#include FT_SERVICE_XFREE86_NAME_H + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_winfnt + + + static const FT_Frame_Field winmz_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinMZ_HeaderRec + + FT_FRAME_START( 64 ), + FT_FRAME_USHORT_LE ( magic ), + FT_FRAME_SKIP_BYTES( 29 * 2 ), + FT_FRAME_ULONG_LE ( lfanew ), + FT_FRAME_END + }; + + static const FT_Frame_Field winne_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinNE_HeaderRec + + FT_FRAME_START( 40 ), + FT_FRAME_USHORT_LE ( magic ), + FT_FRAME_SKIP_BYTES( 34 ), + FT_FRAME_USHORT_LE ( resource_tab_offset ), + FT_FRAME_USHORT_LE ( rname_tab_offset ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe32_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE32_HeaderRec + + FT_FRAME_START( 248 ), + FT_FRAME_ULONG_LE ( magic ), /* PE00 */ + FT_FRAME_USHORT_LE ( machine ), /* 0x014c - i386 */ + FT_FRAME_USHORT_LE ( number_of_sections ), + FT_FRAME_SKIP_BYTES( 12 ), + FT_FRAME_USHORT_LE ( size_of_optional_header ), + FT_FRAME_SKIP_BYTES( 2 ), + FT_FRAME_USHORT_LE ( magic32 ), /* 0x10b */ + FT_FRAME_SKIP_BYTES( 110 ), + FT_FRAME_ULONG_LE ( rsrc_virtual_address ), + FT_FRAME_ULONG_LE ( rsrc_size ), + FT_FRAME_SKIP_BYTES( 104 ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe32_section_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE32_SectionRec + + FT_FRAME_START( 40 ), + FT_FRAME_BYTES ( name, 8 ), + FT_FRAME_SKIP_BYTES( 4 ), + FT_FRAME_ULONG_LE ( virtual_address ), + FT_FRAME_ULONG_LE ( size_of_raw_data ), + FT_FRAME_ULONG_LE ( pointer_to_raw_data ), + FT_FRAME_SKIP_BYTES( 16 ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe_rsrc_dir_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE_RsrcDirRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG_LE ( characteristics ), + FT_FRAME_ULONG_LE ( time_date_stamp ), + FT_FRAME_USHORT_LE( major_version ), + FT_FRAME_USHORT_LE( minor_version ), + FT_FRAME_USHORT_LE( number_of_named_entries ), + FT_FRAME_USHORT_LE( number_of_id_entries ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe_rsrc_dir_entry_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE_RsrcDirEntryRec + + FT_FRAME_START( 8 ), + FT_FRAME_ULONG_LE( name ), + FT_FRAME_ULONG_LE( offset ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe_rsrc_data_entry_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE_RsrcDataEntryRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG_LE( offset_to_data ), + FT_FRAME_ULONG_LE( size ), + FT_FRAME_ULONG_LE( code_page ), + FT_FRAME_ULONG_LE( reserved ), + FT_FRAME_END + }; + + static const FT_Frame_Field winfnt_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_WinFNT_HeaderRec + + FT_FRAME_START( 148 ), + FT_FRAME_USHORT_LE( version ), + FT_FRAME_ULONG_LE ( file_size ), + FT_FRAME_BYTES ( copyright, 60 ), + FT_FRAME_USHORT_LE( file_type ), + FT_FRAME_USHORT_LE( nominal_point_size ), + FT_FRAME_USHORT_LE( vertical_resolution ), + FT_FRAME_USHORT_LE( horizontal_resolution ), + FT_FRAME_USHORT_LE( ascent ), + FT_FRAME_USHORT_LE( internal_leading ), + FT_FRAME_USHORT_LE( external_leading ), + FT_FRAME_BYTE ( italic ), + FT_FRAME_BYTE ( underline ), + FT_FRAME_BYTE ( strike_out ), + FT_FRAME_USHORT_LE( weight ), + FT_FRAME_BYTE ( charset ), + FT_FRAME_USHORT_LE( pixel_width ), + FT_FRAME_USHORT_LE( pixel_height ), + FT_FRAME_BYTE ( pitch_and_family ), + FT_FRAME_USHORT_LE( avg_width ), + FT_FRAME_USHORT_LE( max_width ), + FT_FRAME_BYTE ( first_char ), + FT_FRAME_BYTE ( last_char ), + FT_FRAME_BYTE ( default_char ), + FT_FRAME_BYTE ( break_char ), + FT_FRAME_USHORT_LE( bytes_per_row ), + FT_FRAME_ULONG_LE ( device_offset ), + FT_FRAME_ULONG_LE ( face_name_offset ), + FT_FRAME_ULONG_LE ( bits_pointer ), + FT_FRAME_ULONG_LE ( bits_offset ), + FT_FRAME_BYTE ( reserved ), + FT_FRAME_ULONG_LE ( flags ), + FT_FRAME_USHORT_LE( A_space ), + FT_FRAME_USHORT_LE( B_space ), + FT_FRAME_USHORT_LE( C_space ), + FT_FRAME_ULONG_LE ( color_table_offset ), + FT_FRAME_BYTES ( reserved1, 16 ), + FT_FRAME_END + }; + + + static void + fnt_font_done( FNT_Face face ) + { + FT_Memory memory = FT_FACE( face )->memory; + FT_Stream stream = FT_FACE( face )->stream; + FNT_Font font = face->font; + + + if ( !font ) + return; + + if ( font->fnt_frame ) + FT_FRAME_RELEASE( font->fnt_frame ); + FT_FREE( font->family_name ); + + FT_FREE( font ); + face->font = 0; + } + + + static FT_Error + fnt_font_load( FNT_Font font, + FT_Stream stream ) + { + FT_Error error; + FT_WinFNT_Header header = &font->header; + FT_Bool new_format; + FT_UInt size; + + + /* first of all, read the FNT header */ + if ( FT_STREAM_SEEK( font->offset ) || + FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) ) + goto Exit; + + /* check header */ + if ( header->version != 0x200 && + header->version != 0x300 ) + { + FT_TRACE2(( "[not a valid FNT file]\n" )); + error = FNT_Err_Unknown_File_Format; + goto Exit; + } + + new_format = FT_BOOL( font->header.version == 0x300 ); + size = new_format ? 148 : 118; + + if ( header->file_size < size ) + { + FT_TRACE2(( "[not a valid FNT file]\n" )); + error = FNT_Err_Unknown_File_Format; + goto Exit; + } + + /* Version 2 doesn't have these fields */ + if ( header->version == 0x200 ) + { + header->flags = 0; + header->A_space = 0; + header->B_space = 0; + header->C_space = 0; + + header->color_table_offset = 0; + } + + if ( header->file_type & 1 ) + { + FT_TRACE2(( "[can't handle vector FNT fonts]\n" )); + error = FNT_Err_Unknown_File_Format; + goto Exit; + } + + /* this is a FNT file/table; extract its frame */ + if ( FT_STREAM_SEEK( font->offset ) || + FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) ) + goto Exit; + + Exit: + return error; + } + + + static FT_Error + fnt_face_get_dll_font( FNT_Face face, + FT_Int face_index ) + { + FT_Error error; + FT_Stream stream = FT_FACE( face )->stream; + FT_Memory memory = FT_FACE( face )->memory; + WinMZ_HeaderRec mz_header; + + + face->font = 0; + + /* does it begin with an MZ header? */ + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) ) + goto Exit; + + error = FNT_Err_Unknown_File_Format; + if ( mz_header.magic == WINFNT_MZ_MAGIC ) + { + /* yes, now look for an NE header in the file */ + WinNE_HeaderRec ne_header; + + + FT_TRACE2(( "MZ signature found\n" )); + + if ( FT_STREAM_SEEK( mz_header.lfanew ) || + FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) ) + goto Exit; + + error = FNT_Err_Unknown_File_Format; + if ( ne_header.magic == WINFNT_NE_MAGIC ) + { + /* good, now look into the resource table for each FNT resource */ + FT_ULong res_offset = mz_header.lfanew + + ne_header.resource_tab_offset; + FT_UShort size_shift; + FT_UShort font_count = 0; + FT_ULong font_offset = 0; + + + FT_TRACE2(( "NE signature found\n" )); + + if ( FT_STREAM_SEEK( res_offset ) || + FT_FRAME_ENTER( ne_header.rname_tab_offset - + ne_header.resource_tab_offset ) ) + goto Exit; + + size_shift = FT_GET_USHORT_LE(); + + for (;;) + { + FT_UShort type_id, count; + + + type_id = FT_GET_USHORT_LE(); + if ( !type_id ) + break; + + count = FT_GET_USHORT_LE(); + + if ( type_id == 0x8008U ) + { + font_count = count; + font_offset = (FT_ULong)( FT_STREAM_POS() + 4 + + ( stream->cursor - stream->limit ) ); + break; + } + + stream->cursor += 4 + count * 12; + } + + FT_FRAME_EXIT(); + + if ( !font_count || !font_offset ) + { + FT_TRACE2(( "this file doesn't contain any FNT resources\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + /* loading `winfnt_header_fields' needs at least 118 bytes; */ + /* use this as a rough measure to check the expected font size */ + if ( font_count * 118UL > stream->size ) + { + FT_TRACE2(( "invalid number of faces\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + face->root.num_faces = font_count; + + if ( face_index >= font_count ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + else if ( face_index < 0 ) + goto Exit; + + if ( FT_NEW( face->font ) ) + goto Exit; + + if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) || + FT_FRAME_ENTER( 12 ) ) + goto Fail; + + face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift; + face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift; + + stream->cursor += 8; + + FT_FRAME_EXIT(); + + error = fnt_font_load( face->font, stream ); + } + else if ( ne_header.magic == WINFNT_PE_MAGIC ) + { + WinPE32_HeaderRec pe32_header; + WinPE32_SectionRec pe32_section; + WinPE_RsrcDirRec root_dir, name_dir, lang_dir; + WinPE_RsrcDirEntryRec dir_entry1, dir_entry2, dir_entry3; + WinPE_RsrcDataEntryRec data_entry; + + FT_Long root_dir_offset, name_dir_offset, lang_dir_offset; + FT_UShort i, j, k; + + + FT_TRACE2(( "PE signature found\n" )); + + if ( FT_STREAM_SEEK( mz_header.lfanew ) || + FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) ) + goto Exit; + + FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, " + "size_of_optional_header %02x\n" + "magic32 %02x, rsrc_virtual_address %04lx, " + "rsrc_size %04lx\n", + pe32_header.magic, pe32_header.machine, + pe32_header.number_of_sections, + pe32_header.size_of_optional_header, + pe32_header.magic32, pe32_header.rsrc_virtual_address, + pe32_header.rsrc_size )); + + if ( pe32_header.magic != WINFNT_PE_MAGIC /* check full signature */ || + pe32_header.machine != 0x014c /* i386 */ || + pe32_header.size_of_optional_header != 0xe0 /* FIXME */ || + pe32_header.magic32 != 0x10b ) + { + FT_TRACE2(( "this file has an invalid PE header\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + face->root.num_faces = 0; + + for ( i = 0; i < pe32_header.number_of_sections; i++ ) + { + if ( FT_STREAM_READ_FIELDS( winpe32_section_fields, + &pe32_section ) ) + goto Exit; + + FT_TRACE2(( "name %.8s, va %04lx, size %04lx, offset %04lx\n", + pe32_section.name, pe32_section.virtual_address, + pe32_section.size_of_raw_data, + pe32_section.pointer_to_raw_data )); + + if ( pe32_header.rsrc_virtual_address == + pe32_section.virtual_address ) + goto Found_rsrc_section; + } + + FT_TRACE2(( "this file doesn't contain any resources\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + + Found_rsrc_section: + FT_TRACE2(( "found resources section %.8s\n", pe32_section.name )); + + if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) ) + goto Exit; + + root_dir_offset = pe32_section.pointer_to_raw_data; + + for ( i = 0; i < root_dir.number_of_named_entries + + root_dir.number_of_id_entries; i++ ) + { + if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields, + &dir_entry1 ) ) + goto Exit; + + if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ ) + { + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + dir_entry1.offset &= ~0x80000000UL; + + name_dir_offset = pe32_section.pointer_to_raw_data + + dir_entry1.offset; + + if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data + + dir_entry1.offset ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &name_dir ) ) + goto Exit; + + for ( j = 0; j < name_dir.number_of_named_entries + + name_dir.number_of_id_entries; j++ ) + { + if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields, + &dir_entry2 ) ) + goto Exit; + + if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ ) + { + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + dir_entry2.offset &= ~0x80000000UL; + + lang_dir_offset = pe32_section.pointer_to_raw_data + + dir_entry2.offset; + + if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data + + dir_entry2.offset ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &lang_dir ) ) + goto Exit; + + for ( k = 0; k < lang_dir.number_of_named_entries + + lang_dir.number_of_id_entries; k++ ) + { + if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields, + &dir_entry3 ) ) + goto Exit; + + if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ ) + { + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( dir_entry1.name == 8 /* RT_FONT */ ) + { + if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields, + &data_entry ) ) + goto Exit; + + FT_TRACE2(( "found font #%lu, offset %04lx, " + "size %04lx, cp %lu\n", + dir_entry2.name, + pe32_section.pointer_to_raw_data + + data_entry.offset_to_data - + pe32_section.virtual_address, + data_entry.size, data_entry.code_page )); + + if ( face_index == face->root.num_faces ) + { + if ( FT_NEW( face->font ) ) + goto Exit; + + face->font->offset = pe32_section.pointer_to_raw_data + + data_entry.offset_to_data - + pe32_section.virtual_address; + face->font->fnt_size = data_entry.size; + + error = fnt_font_load( face->font, stream ); + if ( error ) + { + FT_TRACE2(( "font #%lu load error %d\n", + dir_entry2.name, error )); + goto Fail; + } + else + FT_TRACE2(( "font #%lu successfully loaded\n", + dir_entry2.name )); + } + + face->root.num_faces++; + } + } + } + } + } + + if ( !face->root.num_faces ) + { + FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( face_index >= face->root.num_faces ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + } + + Fail: + if ( error ) + fnt_font_done( face ); + + Exit: + return error; + } + + + typedef struct FNT_CMapRec_ + { + FT_CMapRec cmap; + FT_UInt32 first; + FT_UInt32 count; + + } FNT_CMapRec, *FNT_CMap; + + + static FT_Error + fnt_cmap_init( FNT_CMap cmap ) + { + FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap ); + FNT_Font font = face->font; + + + cmap->first = (FT_UInt32) font->header.first_char; + cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 ); + + return 0; + } + + + static FT_UInt + fnt_cmap_char_index( FNT_CMap cmap, + FT_UInt32 char_code ) + { + FT_UInt gindex = 0; + + + char_code -= cmap->first; + if ( char_code < cmap->count ) + /* we artificially increase the glyph index; */ + /* FNT_Load_Glyph reverts to the right one */ + gindex = (FT_UInt)( char_code + 1 ); + return gindex; + } + + + static FT_UInt32 + fnt_cmap_char_next( FNT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt gindex = 0; + FT_UInt32 result = 0; + FT_UInt32 char_code = *pchar_code + 1; + + + if ( char_code <= cmap->first ) + { + result = cmap->first; + gindex = 1; + } + else + { + char_code -= cmap->first; + if ( char_code < cmap->count ) + { + result = cmap->first + char_code; + gindex = (FT_UInt)( char_code + 1 ); + } + } + + *pchar_code = result; + return gindex; + } + + + static const FT_CMap_ClassRec fnt_cmap_class_rec = + { + sizeof ( FNT_CMapRec ), + + (FT_CMap_InitFunc) fnt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)fnt_cmap_char_index, + (FT_CMap_CharNextFunc) fnt_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + static FT_CMap_Class const fnt_cmap_class = &fnt_cmap_class_rec; + + + static void + FNT_Face_Done( FNT_Face face ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + fnt_font_done( face ); + + FT_FREE( face->root.available_sizes ); + face->root.num_fixed_sizes = 0; + } + + + static FT_Error + FNT_Face_Init( FT_Stream stream, + FNT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Memory memory = FT_FACE_MEMORY( face ); + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + /* try to load font from a DLL */ + error = fnt_face_get_dll_font( face, face_index ); + if ( !error && face_index < 0 ) + goto Exit; + + if ( error == FNT_Err_Unknown_File_Format ) + { + /* this didn't work; try to load a single FNT font */ + FNT_Font font; + + if ( FT_NEW( face->font ) ) + goto Exit; + + face->root.num_faces = 1; + + font = face->font; + font->offset = 0; + font->fnt_size = stream->size; + + error = fnt_font_load( font, stream ); + + if ( !error ) + { + if ( face_index > 0 ) + error = FNT_Err_Invalid_Argument; + else if ( face_index < 0 ) + goto Exit; + } + } + + if ( error ) + goto Fail; + + /* we now need to fill the root FT_Face fields */ + /* with relevant information */ + { + FT_Face root = FT_FACE( face ); + FNT_Font font = face->font; + FT_PtrDist family_size; + + + root->face_index = face_index; + + root->face_flags = FT_FACE_FLAG_FIXED_SIZES | + FT_FACE_FLAG_HORIZONTAL; + + if ( font->header.avg_width == font->header.max_width ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( font->header.italic ) + root->style_flags |= FT_STYLE_FLAG_ITALIC; + + if ( font->header.weight >= 800 ) + root->style_flags |= FT_STYLE_FLAG_BOLD; + + /* set up the `fixed_sizes' array */ + if ( FT_NEW_ARRAY( root->available_sizes, 1 ) ) + goto Fail; + + root->num_fixed_sizes = 1; + + { + FT_Bitmap_Size* bsize = root->available_sizes; + FT_UShort x_res, y_res; + + + bsize->width = font->header.avg_width; + bsize->height = (FT_Short)( + font->header.pixel_height + font->header.external_leading ); + bsize->size = font->header.nominal_point_size << 6; + + x_res = font->header.horizontal_resolution; + if ( !x_res ) + x_res = 72; + + y_res = font->header.vertical_resolution; + if ( !y_res ) + y_res = 72; + + bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 ); + bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem ); + + /* + * this reads: + * + * the nominal height is larger than the bbox's height + * + * => nominal_point_size contains incorrect value; + * use pixel_height as the nominal height + */ + if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) ) + { + FT_TRACE2(( "use pixel_height as the nominal height\n" )); + + bsize->y_ppem = font->header.pixel_height << 6; + bsize->size = FT_MulDiv( bsize->y_ppem, 72, y_res ); + } + + bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 ); + bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem ); + } + + { + FT_CharMapRec charmap; + + + charmap.encoding = FT_ENCODING_NONE; + /* initial platform/encoding should indicate unset status? */ + charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; + charmap.encoding_id = TT_APPLE_ID_DEFAULT; + charmap.face = root; + + if ( font->header.charset == FT_WinFNT_ID_MAC ) + { + charmap.encoding = FT_ENCODING_APPLE_ROMAN; + charmap.platform_id = TT_PLATFORM_MACINTOSH; +/* charmap.encoding_id = TT_MAC_ID_ROMAN; */ + } + + error = FT_CMap_New( fnt_cmap_class, + NULL, + &charmap, + NULL ); + if ( error ) + goto Fail; + + /* Select default charmap */ + if ( root->num_charmaps ) + root->charmap = root->charmaps[0]; + } + + /* setup remaining flags */ + + /* reserve one slot for the .notdef glyph at index 0 */ + root->num_glyphs = font->header.last_char - + font->header.first_char + 1 + 1; + + if ( font->header.face_name_offset >= font->header.file_size ) + { + FT_TRACE2(( "invalid family name offset\n" )); + error = FNT_Err_Invalid_File_Format; + goto Fail; + } + family_size = font->header.file_size - font->header.face_name_offset; + /* Some broken fonts don't delimit the face name with a final */ + /* NULL byte -- the frame is erroneously one byte too small. */ + /* We thus allocate one more byte, setting it explicitly to */ + /* zero. */ + if ( FT_ALLOC( font->family_name, family_size + 1 ) ) + goto Fail; + + FT_MEM_COPY( font->family_name, + font->fnt_frame + font->header.face_name_offset, + family_size ); + + font->family_name[family_size] = '\0'; + + if ( FT_REALLOC( font->family_name, + family_size, + ft_strlen( font->family_name ) + 1 ) ) + goto Fail; + + root->family_name = font->family_name; + root->style_name = (char *)"Regular"; + + if ( root->style_flags & FT_STYLE_FLAG_BOLD ) + { + if ( root->style_flags & FT_STYLE_FLAG_ITALIC ) + root->style_name = (char *)"Bold Italic"; + else + root->style_name = (char *)"Bold"; + } + else if ( root->style_flags & FT_STYLE_FLAG_ITALIC ) + root->style_name = (char *)"Italic"; + } + goto Exit; + + Fail: + FNT_Face_Done( face ); + + Exit: + return error; + } + + + static FT_Error + FNT_Size_Select( FT_Size size ) + { + FNT_Face face = (FNT_Face)size->face; + FT_WinFNT_Header header = &face->font->header; + + + FT_Select_Metrics( size->face, 0 ); + + size->metrics.ascender = header->ascent * 64; + size->metrics.descender = -( header->pixel_height - + header->ascent ) * 64; + size->metrics.max_advance = header->max_width * 64; + + return FNT_Err_Ok; + } + + + static FT_Error + FNT_Size_Request( FT_Size size, + FT_Size_Request req ) + { + FNT_Face face = (FNT_Face)size->face; + FT_WinFNT_Header header = &face->font->header; + FT_Bitmap_Size* bsize = size->face->available_sizes; + FT_Error error = FNT_Err_Invalid_Pixel_Size; + FT_Long height; + + + height = FT_REQUEST_HEIGHT( req ); + height = ( height + 32 ) >> 6; + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) ) + error = FNT_Err_Ok; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + if ( height == header->pixel_height ) + error = FNT_Err_Ok; + break; + + default: + error = FNT_Err_Unimplemented_Feature; + break; + } + + if ( error ) + return error; + else + return FNT_Size_Select( size ); + } + + + static FT_Error + FNT_Load_Glyph( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FNT_Face face = (FNT_Face)FT_SIZE_FACE( size ); + FNT_Font font; + FT_Error error = FNT_Err_Ok; + FT_Byte* p; + FT_Int len; + FT_Bitmap* bitmap = &slot->bitmap; + FT_ULong offset; + FT_Bool new_format; + + FT_UNUSED( load_flags ); + + + if ( !face ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + + font = face->font; + + if ( !font || + glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + + if ( glyph_index > 0 ) + glyph_index--; /* revert to real index */ + else + glyph_index = font->header.default_char; /* the .notdef glyph */ + + new_format = FT_BOOL( font->header.version == 0x300 ); + len = new_format ? 6 : 4; + + /* jump to glyph entry */ + p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index; + + bitmap->width = FT_NEXT_SHORT_LE( p ); + + if ( new_format ) + offset = FT_NEXT_ULONG_LE( p ); + else + offset = FT_NEXT_USHORT_LE( p ); + + if ( offset >= font->header.file_size ) + { + FT_TRACE2(( "invalid FNT offset\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + /* jump to glyph data */ + p = font->fnt_frame + /* font->header.bits_offset */ + offset; + + /* allocate and build bitmap */ + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + FT_Int pitch = ( bitmap->width + 7 ) >> 3; + FT_Byte* column; + FT_Byte* write; + + + bitmap->pitch = pitch; + bitmap->rows = font->header.pixel_height; + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + + if ( offset + pitch * bitmap->rows >= font->header.file_size ) + { + FT_TRACE2(( "invalid bitmap width\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + /* note: since glyphs are stored in columns and not in rows we */ + /* can't use ft_glyphslot_set_bitmap */ + if ( FT_ALLOC_MULT( bitmap->buffer, pitch, bitmap->rows ) ) + goto Exit; + + column = (FT_Byte*)bitmap->buffer; + + for ( ; pitch > 0; pitch--, column++ ) + { + FT_Byte* limit = p + bitmap->rows; + + + for ( write = column; p < limit; p++, write += bitmap->pitch ) + *write = *p; + } + } + + slot->internal->flags = FT_GLYPH_OWN_BITMAP; + slot->bitmap_left = 0; + slot->bitmap_top = font->header.ascent; + slot->format = FT_GLYPH_FORMAT_BITMAP; + + /* now set up metrics */ + slot->metrics.width = bitmap->width << 6; + slot->metrics.height = bitmap->rows << 6; + slot->metrics.horiAdvance = bitmap->width << 6; + slot->metrics.horiBearingX = 0; + slot->metrics.horiBearingY = slot->bitmap_top << 6; + + ft_synthesize_vertical_metrics( &slot->metrics, + bitmap->rows << 6 ); + + Exit: + return error; + } + + + static FT_Error + winfnt_get_header( FT_Face face, + FT_WinFNT_HeaderRec *aheader ) + { + FNT_Font font = ((FNT_Face)face)->font; + + + *aheader = font->header; + + return 0; + } + + + static const FT_Service_WinFntRec winfnt_service_rec = + { + winfnt_get_header + }; + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec winfnt_services[] = + { + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT }, + { FT_SERVICE_ID_WINFNT, &winfnt_service_rec }, + { NULL, NULL } + }; + + + static FT_Module_Interface + winfnt_get_service( FT_Driver driver, + const FT_String* service_id ) + { + FT_UNUSED( driver ); + + return ft_service_list_lookup( winfnt_services, service_id ); + } + + + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec winfnt_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_NO_OUTLINES, + sizeof ( FT_DriverRec ), + + "winfonts", + 0x10000L, + 0x20000L, + + 0, + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) winfnt_get_service + }, + + sizeof( FNT_FaceRec ), + sizeof( FT_SizeRec ), + sizeof( FT_GlyphSlotRec ), + + (FT_Face_InitFunc) FNT_Face_Init, + (FT_Face_DoneFunc) FNT_Face_Done, + (FT_Size_InitFunc) 0, + (FT_Size_DoneFunc) 0, + (FT_Slot_InitFunc) 0, + (FT_Slot_DoneFunc) 0, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + (FT_Slot_LoadFunc) FNT_Load_Glyph, + + (FT_Face_GetKerningFunc) 0, + (FT_Face_AttachFunc) 0, + (FT_Face_GetAdvancesFunc) 0, + + (FT_Size_RequestFunc) FNT_Size_Request, + (FT_Size_SelectFunc) FNT_Size_Select + }; + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.h b/uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.h new file mode 100644 index 000000000..e62d49041 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/src/winfonts/winfnt.h @@ -0,0 +1,171 @@ +/***************************************************************************/ +/* */ +/* winfnt.h */ +/* */ +/* FreeType font driver for Windows FNT/FON files */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* Copyright 2007 Dmitry Timoshkov for Codeweavers */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __WINFNT_H__ +#define __WINFNT_H__ + + +#include <freetype/ft2build.h> +#include FT_WINFONTS_H +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + typedef struct WinMZ_HeaderRec_ + { + FT_UShort magic; + /* skipped content */ + FT_UShort lfanew; + + } WinMZ_HeaderRec; + + + typedef struct WinNE_HeaderRec_ + { + FT_UShort magic; + /* skipped content */ + FT_UShort resource_tab_offset; + FT_UShort rname_tab_offset; + + } WinNE_HeaderRec; + + + typedef struct WinPE32_HeaderRec_ + { + FT_ULong magic; + FT_UShort machine; + FT_UShort number_of_sections; + /* skipped content */ + FT_UShort size_of_optional_header; + /* skipped content */ + FT_UShort magic32; + /* skipped content */ + FT_ULong rsrc_virtual_address; + FT_ULong rsrc_size; + /* skipped content */ + + } WinPE32_HeaderRec; + + + typedef struct WinPE32_SectionRec_ + { + FT_Byte name[8]; + /* skipped content */ + FT_ULong virtual_address; + FT_ULong size_of_raw_data; + FT_ULong pointer_to_raw_data; + /* skipped content */ + + } WinPE32_SectionRec; + + + typedef struct WinPE_RsrcDirRec_ + { + FT_ULong characteristics; + FT_ULong time_date_stamp; + FT_UShort major_version; + FT_UShort minor_version; + FT_UShort number_of_named_entries; + FT_UShort number_of_id_entries; + + } WinPE_RsrcDirRec; + + + typedef struct WinPE_RsrcDirEntryRec_ + { + FT_ULong name; + FT_ULong offset; + + } WinPE_RsrcDirEntryRec; + + + typedef struct WinPE_RsrcDataEntryRec_ + { + FT_ULong offset_to_data; + FT_ULong size; + FT_ULong code_page; + FT_ULong reserved; + + } WinPE_RsrcDataEntryRec; + + + typedef struct WinNameInfoRec_ + { + FT_UShort offset; + FT_UShort length; + FT_UShort flags; + FT_UShort id; + FT_UShort handle; + FT_UShort usage; + + } WinNameInfoRec; + + + typedef struct WinResourceInfoRec_ + { + FT_UShort type_id; + FT_UShort count; + + } WinResourceInfoRec; + + +#define WINFNT_MZ_MAGIC 0x5A4D +#define WINFNT_NE_MAGIC 0x454E +#define WINFNT_PE_MAGIC 0x4550 + + + typedef struct FNT_FontRec_ + { + FT_ULong offset; + + FT_WinFNT_HeaderRec header; + + FT_Byte* fnt_frame; + FT_ULong fnt_size; + FT_String* family_name; + + } FNT_FontRec, *FNT_Font; + + + typedef struct FNT_FaceRec_ + { + FT_FaceRec root; + FNT_Font font; + + FT_CharMap charmap_handle; + FT_CharMapRec charmap; /* a single charmap per face */ + + } FNT_FaceRec, *FNT_Face; + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) winfnt_driver_class; + + +FT_END_HEADER + + +#endif /* __WINFNT_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/t1tables.h b/uppsrc/plugin/FT_fontsys/t1tables.h new file mode 100644 index 000000000..e8c5e8b65 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/t1tables.h @@ -0,0 +1,504 @@ +/***************************************************************************/ +/* */ +/* t1tables.h */ +/* */ +/* Basic Type 1/Type 2 tables definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1TABLES_H__ +#define __T1TABLES_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* type1_tables */ + /* */ + /* <Title> */ + /* Type 1 Tables */ + /* */ + /* <Abstract> */ + /* Type~1 (PostScript) specific font tables. */ + /* */ + /* <Description> */ + /* This section contains the definition of Type 1-specific tables, */ + /* including structures related to other PostScript font formats. */ + /* */ + /*************************************************************************/ + + + /* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */ + /* structures in order to support Multiple Master fonts. */ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_FontInfoRec */ + /* */ + /* <Description> */ + /* A structure used to model a Type~1 or Type~2 FontInfo dictionary. */ + /* Note that for Multiple Master fonts, each instance has its own */ + /* FontInfo dictionary. */ + /* */ + typedef struct PS_FontInfoRec_ + { + FT_String* version; + FT_String* notice; + FT_String* full_name; + FT_String* family_name; + FT_String* weight; + FT_Long italic_angle; + FT_Bool is_fixed_pitch; + FT_Short underline_position; + FT_UShort underline_thickness; + + } PS_FontInfoRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_FontInfo */ + /* */ + /* <Description> */ + /* A handle to a @PS_FontInfoRec structure. */ + /* */ + typedef struct PS_FontInfoRec_* PS_FontInfo; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_FontInfo */ + /* */ + /* <Description> */ + /* This type is equivalent to @PS_FontInfoRec. It is deprecated but */ + /* kept to maintain source compatibility between various versions of */ + /* FreeType. */ + /* */ + typedef PS_FontInfoRec T1_FontInfo; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_PrivateRec */ + /* */ + /* <Description> */ + /* A structure used to model a Type~1 or Type~2 private dictionary. */ + /* Note that for Multiple Master fonts, each instance has its own */ + /* Private dictionary. */ + /* */ + typedef struct PS_PrivateRec_ + { + FT_Int unique_id; + FT_Int lenIV; + + FT_Byte num_blue_values; + FT_Byte num_other_blues; + FT_Byte num_family_blues; + FT_Byte num_family_other_blues; + + FT_Short blue_values[14]; + FT_Short other_blues[10]; + + FT_Short family_blues [14]; + FT_Short family_other_blues[10]; + + FT_Fixed blue_scale; + FT_Int blue_shift; + FT_Int blue_fuzz; + + FT_UShort standard_width[1]; + FT_UShort standard_height[1]; + + FT_Byte num_snap_widths; + FT_Byte num_snap_heights; + FT_Bool force_bold; + FT_Bool round_stem_up; + + FT_Short snap_widths [13]; /* including std width */ + FT_Short snap_heights[13]; /* including std height */ + + FT_Fixed expansion_factor; + + FT_Long language_group; + FT_Long password; + + FT_Short min_feature[2]; + + } PS_PrivateRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_Private */ + /* */ + /* <Description> */ + /* A handle to a @PS_PrivateRec structure. */ + /* */ + typedef struct PS_PrivateRec_* PS_Private; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_Private */ + /* */ + /* <Description> */ + /* This type is equivalent to @PS_PrivateRec. It is deprecated but */ + /* kept to maintain source compatibility between various versions of */ + /* FreeType. */ + /* */ + typedef PS_PrivateRec T1_Private; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* T1_Blend_Flags */ + /* */ + /* <Description> */ + /* A set of flags used to indicate which fields are present in a */ + /* given blend dictionary (font info or private). Used to support */ + /* Multiple Masters fonts. */ + /* */ + typedef enum T1_Blend_Flags_ + { + /*# required fields in a FontInfo blend dictionary */ + T1_BLEND_UNDERLINE_POSITION = 0, + T1_BLEND_UNDERLINE_THICKNESS, + T1_BLEND_ITALIC_ANGLE, + + /*# required fields in a Private blend dictionary */ + T1_BLEND_BLUE_VALUES, + T1_BLEND_OTHER_BLUES, + T1_BLEND_STANDARD_WIDTH, + T1_BLEND_STANDARD_HEIGHT, + T1_BLEND_STEM_SNAP_WIDTHS, + T1_BLEND_STEM_SNAP_HEIGHTS, + T1_BLEND_BLUE_SCALE, + T1_BLEND_BLUE_SHIFT, + T1_BLEND_FAMILY_BLUES, + T1_BLEND_FAMILY_OTHER_BLUES, + T1_BLEND_FORCE_BOLD, + + /*# never remove */ + T1_BLEND_MAX + + } T1_Blend_Flags; + + /* */ + + + /*# backwards compatible definitions */ +#define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION +#define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS +#define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE +#define t1_blend_blue_values T1_BLEND_BLUE_VALUES +#define t1_blend_other_blues T1_BLEND_OTHER_BLUES +#define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH +#define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT +#define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS +#define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS +#define t1_blend_blue_scale T1_BLEND_BLUE_SCALE +#define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT +#define t1_blend_family_blues T1_BLEND_FAMILY_BLUES +#define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES +#define t1_blend_force_bold T1_BLEND_FORCE_BOLD +#define t1_blend_max T1_BLEND_MAX + + + /* maximum number of Multiple Masters designs, as defined in the spec */ +#define T1_MAX_MM_DESIGNS 16 + + /* maximum number of Multiple Masters axes, as defined in the spec */ +#define T1_MAX_MM_AXIS 4 + + /* maximum number of elements in a design map */ +#define T1_MAX_MM_MAP_POINTS 20 + + + /* this structure is used to store the BlendDesignMap entry for an axis */ + typedef struct PS_DesignMap_ + { + FT_Byte num_points; + FT_Long* design_points; + FT_Fixed* blend_points; + + } PS_DesignMapRec, *PS_DesignMap; + + /* backwards-compatible definition */ + typedef PS_DesignMapRec T1_DesignMap; + + + typedef struct PS_BlendRec_ + { + FT_UInt num_designs; + FT_UInt num_axis; + + FT_String* axis_names[T1_MAX_MM_AXIS]; + FT_Fixed* design_pos[T1_MAX_MM_DESIGNS]; + PS_DesignMapRec design_map[T1_MAX_MM_AXIS]; + + FT_Fixed* weight_vector; + FT_Fixed* default_weight_vector; + + PS_FontInfo font_infos[T1_MAX_MM_DESIGNS + 1]; + PS_Private privates [T1_MAX_MM_DESIGNS + 1]; + + FT_ULong blend_bitflags; + + FT_BBox* bboxes [T1_MAX_MM_DESIGNS + 1]; + + /* since 2.3.0 */ + + /* undocumented, optional: the default design instance; */ + /* corresponds to default_weight_vector -- */ + /* num_default_design_vector == 0 means it is not present */ + /* in the font and associated metrics files */ + FT_UInt default_design_vector[T1_MAX_MM_DESIGNS]; + FT_UInt num_default_design_vector; + + } PS_BlendRec, *PS_Blend; + + + /* backwards-compatible definition */ + typedef PS_BlendRec T1_Blend; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceDictRec */ + /* */ + /* <Description> */ + /* A structure used to represent data in a CID top-level dictionary. */ + /* */ + typedef struct CID_FaceDictRec_ + { + PS_PrivateRec private_dict; + + FT_UInt len_buildchar; + FT_Fixed forcebold_threshold; + FT_Pos stroke_width; + FT_Fixed expansion_factor; + + FT_Byte paint_type; + FT_Byte font_type; + FT_Matrix font_matrix; + FT_Vector font_offset; + + FT_UInt num_subrs; + FT_ULong subrmap_offset; + FT_Int sd_bytes; + + } CID_FaceDictRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceDict */ + /* */ + /* <Description> */ + /* A handle to a @CID_FaceDictRec structure. */ + /* */ + typedef struct CID_FaceDictRec_* CID_FaceDict; + + /* */ + + + /* backwards-compatible definition */ + typedef CID_FaceDictRec CID_FontDict; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceInfoRec */ + /* */ + /* <Description> */ + /* A structure used to represent CID Face information. */ + /* */ + typedef struct CID_FaceInfoRec_ + { + FT_String* cid_font_name; + FT_Fixed cid_version; + FT_Int cid_font_type; + + FT_String* registry; + FT_String* ordering; + FT_Int supplement; + + PS_FontInfoRec font_info; + FT_BBox font_bbox; + FT_ULong uid_base; + + FT_Int num_xuid; + FT_ULong xuid[16]; + + FT_ULong cidmap_offset; + FT_Int fd_bytes; + FT_Int gd_bytes; + FT_ULong cid_count; + + FT_Int num_dicts; + CID_FaceDict font_dicts; + + FT_ULong data_offset; + + } CID_FaceInfoRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceInfo */ + /* */ + /* <Description> */ + /* A handle to a @CID_FaceInfoRec structure. */ + /* */ + typedef struct CID_FaceInfoRec_* CID_FaceInfo; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_Info */ + /* */ + /* <Description> */ + /* This type is equivalent to @CID_FaceInfoRec. It is deprecated but */ + /* kept to maintain source compatibility between various versions of */ + /* FreeType. */ + /* */ + typedef CID_FaceInfoRec CID_Info; + + + /************************************************************************ + * + * @function: + * FT_Has_PS_Glyph_Names + * + * @description: + * Return true if a given face provides reliable PostScript glyph + * names. This is similar to using the @FT_HAS_GLYPH_NAMES macro, + * except that certain fonts (mostly TrueType) contain incorrect + * glyph name tables. + * + * When this function returns true, the caller is sure that the glyph + * names returned by @FT_Get_Glyph_Name are reliable. + * + * @input: + * face :: + * face handle + * + * @return: + * Boolean. True if glyph names are reliable. + * + */ + FT_EXPORT( FT_Int ) + FT_Has_PS_Glyph_Names( FT_Face face ); + + + /************************************************************************ + * + * @function: + * FT_Get_PS_Font_Info + * + * @description: + * Retrieve the @PS_FontInfoRec structure corresponding to a given + * PostScript font. + * + * @input: + * face :: + * PostScript face handle. + * + * @output: + * afont_info :: + * Output font info structure pointer. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The string pointers within the font info structure are owned by + * the face and don't need to be freed by the caller. + * + * If the font's format is not PostScript-based, this function will + * return the `FT_Err_Invalid_Argument' error code. + * + */ + FT_EXPORT( FT_Error ) + FT_Get_PS_Font_Info( FT_Face face, + PS_FontInfo afont_info ); + + + /************************************************************************ + * + * @function: + * FT_Get_PS_Font_Private + * + * @description: + * Retrieve the @PS_PrivateRec structure corresponding to a given + * PostScript font. + * + * @input: + * face :: + * PostScript face handle. + * + * @output: + * afont_private :: + * Output private dictionary structure pointer. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The string pointers within the @PS_PrivateRec structure are owned by + * the face and don't need to be freed by the caller. + * + * If the font's format is not PostScript-based, this function returns + * the `FT_Err_Invalid_Argument' error code. + * + */ + FT_EXPORT( FT_Error ) + FT_Get_PS_Font_Private( FT_Face face, + PS_Private afont_private ); + + /* */ + + +FT_END_HEADER + +#endif /* __T1TABLES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ttnameid.h b/uppsrc/plugin/FT_fontsys/ttnameid.h new file mode 100644 index 000000000..88e6168d1 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ttnameid.h @@ -0,0 +1,1247 @@ +/***************************************************************************/ +/* */ +/* ttnameid.h */ +/* */ +/* TrueType name ID definitions (specification only). */ +/* */ +/* Copyright 1996-2002, 2003, 2004, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTNAMEID_H__ +#define __TTNAMEID_H__ + + +#include "ft2build.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* truetype_tables */ + /* */ + + + /*************************************************************************/ + /* */ + /* Possible values for the `platform' identifier code in the name */ + /* records of the TTF `name' table. */ + /* */ + /*************************************************************************/ + + + /*********************************************************************** + * + * @enum: + * TT_PLATFORM_XXX + * + * @description: + * A list of valid values for the `platform_id' identifier code in + * @FT_CharMapRec and @FT_SfntName structures. + * + * @values: + * TT_PLATFORM_APPLE_UNICODE :: + * Used by Apple to indicate a Unicode character map and/or name entry. + * See @TT_APPLE_ID_XXX for corresponding `encoding_id' values. Note + * that name entries in this format are coded as big-endian UCS-2 + * character codes _only_. + * + * TT_PLATFORM_MACINTOSH :: + * Used by Apple to indicate a MacOS-specific charmap and/or name entry. + * See @TT_MAC_ID_XXX for corresponding `encoding_id' values. Note that + * most TrueType fonts contain an Apple roman charmap to be usable on + * MacOS systems (even if they contain a Microsoft charmap as well). + * + * TT_PLATFORM_ISO :: + * This value was used to specify ISO/IEC 10646 charmaps. It is however + * now deprecated. See @TT_ISO_ID_XXX for a list of corresponding + * `encoding_id' values. + * + * TT_PLATFORM_MICROSOFT :: + * Used by Microsoft to indicate Windows-specific charmaps. See + * @TT_MS_ID_XXX for a list of corresponding `encoding_id' values. + * Note that most fonts contain a Unicode charmap using + * (TT_PLATFORM_MICROSOFT, @TT_MS_ID_UNICODE_CS). + * + * TT_PLATFORM_CUSTOM :: + * Used to indicate application-specific charmaps. + * + * TT_PLATFORM_ADOBE :: + * This value isn't part of any font format specification, but is used + * by FreeType to report Adobe-specific charmaps in an @FT_CharMapRec + * structure. See @TT_ADOBE_ID_XXX. + */ + +#define TT_PLATFORM_APPLE_UNICODE 0 +#define TT_PLATFORM_MACINTOSH 1 +#define TT_PLATFORM_ISO 2 /* deprecated */ +#define TT_PLATFORM_MICROSOFT 3 +#define TT_PLATFORM_CUSTOM 4 +#define TT_PLATFORM_ADOBE 7 /* artificial */ + + + /*********************************************************************** + * + * @enum: + * TT_APPLE_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_APPLE_UNICODE charmaps and name entries. + * + * @values: + * TT_APPLE_ID_DEFAULT :: + * Unicode version 1.0. + * + * TT_APPLE_ID_UNICODE_1_1 :: + * Unicode 1.1; specifies Hangul characters starting at U+34xx. + * + * TT_APPLE_ID_ISO_10646 :: + * Deprecated (identical to preceding). + * + * TT_APPLE_ID_UNICODE_2_0 :: + * Unicode 2.0 and beyond (UTF-16 BMP only). + * + * TT_APPLE_ID_UNICODE_32 :: + * Unicode 3.1 and beyond, using UTF-32. + * + * TT_APPLE_ID_VARIANT_SELECTOR :: + * From Adobe, not Apple. Not a normal cmap. Specifies variations + * on a real cmap. + */ + +#define TT_APPLE_ID_DEFAULT 0 /* Unicode 1.0 */ +#define TT_APPLE_ID_UNICODE_1_1 1 /* specify Hangul at U+34xx */ +#define TT_APPLE_ID_ISO_10646 2 /* deprecated */ +#define TT_APPLE_ID_UNICODE_2_0 3 /* or later */ +#define TT_APPLE_ID_UNICODE_32 4 /* 2.0 or later, full repertoire */ +#define TT_APPLE_ID_VARIANT_SELECTOR 5 /* variation selector data */ + + + /*********************************************************************** + * + * @enum: + * TT_MAC_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_MACINTOSH charmaps and name entries. + * + * @values: + * TT_MAC_ID_ROMAN :: + * TT_MAC_ID_JAPANESE :: + * TT_MAC_ID_TRADITIONAL_CHINESE :: + * TT_MAC_ID_KOREAN :: + * TT_MAC_ID_ARABIC :: + * TT_MAC_ID_HEBREW :: + * TT_MAC_ID_GREEK :: + * TT_MAC_ID_RUSSIAN :: + * TT_MAC_ID_RSYMBOL :: + * TT_MAC_ID_DEVANAGARI :: + * TT_MAC_ID_GURMUKHI :: + * TT_MAC_ID_GUJARATI :: + * TT_MAC_ID_ORIYA :: + * TT_MAC_ID_BENGALI :: + * TT_MAC_ID_TAMIL :: + * TT_MAC_ID_TELUGU :: + * TT_MAC_ID_KANNADA :: + * TT_MAC_ID_MALAYALAM :: + * TT_MAC_ID_SINHALESE :: + * TT_MAC_ID_BURMESE :: + * TT_MAC_ID_KHMER :: + * TT_MAC_ID_THAI :: + * TT_MAC_ID_LAOTIAN :: + * TT_MAC_ID_GEORGIAN :: + * TT_MAC_ID_ARMENIAN :: + * TT_MAC_ID_MALDIVIAN :: + * TT_MAC_ID_SIMPLIFIED_CHINESE :: + * TT_MAC_ID_TIBETAN :: + * TT_MAC_ID_MONGOLIAN :: + * TT_MAC_ID_GEEZ :: + * TT_MAC_ID_SLAVIC :: + * TT_MAC_ID_VIETNAMESE :: + * TT_MAC_ID_SINDHI :: + * TT_MAC_ID_UNINTERP :: + */ + +#define TT_MAC_ID_ROMAN 0 +#define TT_MAC_ID_JAPANESE 1 +#define TT_MAC_ID_TRADITIONAL_CHINESE 2 +#define TT_MAC_ID_KOREAN 3 +#define TT_MAC_ID_ARABIC 4 +#define TT_MAC_ID_HEBREW 5 +#define TT_MAC_ID_GREEK 6 +#define TT_MAC_ID_RUSSIAN 7 +#define TT_MAC_ID_RSYMBOL 8 +#define TT_MAC_ID_DEVANAGARI 9 +#define TT_MAC_ID_GURMUKHI 10 +#define TT_MAC_ID_GUJARATI 11 +#define TT_MAC_ID_ORIYA 12 +#define TT_MAC_ID_BENGALI 13 +#define TT_MAC_ID_TAMIL 14 +#define TT_MAC_ID_TELUGU 15 +#define TT_MAC_ID_KANNADA 16 +#define TT_MAC_ID_MALAYALAM 17 +#define TT_MAC_ID_SINHALESE 18 +#define TT_MAC_ID_BURMESE 19 +#define TT_MAC_ID_KHMER 20 +#define TT_MAC_ID_THAI 21 +#define TT_MAC_ID_LAOTIAN 22 +#define TT_MAC_ID_GEORGIAN 23 +#define TT_MAC_ID_ARMENIAN 24 +#define TT_MAC_ID_MALDIVIAN 25 +#define TT_MAC_ID_SIMPLIFIED_CHINESE 25 +#define TT_MAC_ID_TIBETAN 26 +#define TT_MAC_ID_MONGOLIAN 27 +#define TT_MAC_ID_GEEZ 28 +#define TT_MAC_ID_SLAVIC 29 +#define TT_MAC_ID_VIETNAMESE 30 +#define TT_MAC_ID_SINDHI 31 +#define TT_MAC_ID_UNINTERP 32 + + + /*********************************************************************** + * + * @enum: + * TT_ISO_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_ISO charmaps and name entries. + * + * Their use is now deprecated. + * + * @values: + * TT_ISO_ID_7BIT_ASCII :: + * ASCII. + * TT_ISO_ID_10646 :: + * ISO/10646. + * TT_ISO_ID_8859_1 :: + * Also known as Latin-1. + */ + +#define TT_ISO_ID_7BIT_ASCII 0 +#define TT_ISO_ID_10646 1 +#define TT_ISO_ID_8859_1 2 + + + /*********************************************************************** + * + * @enum: + * TT_MS_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_MICROSOFT charmaps and name entries. + * + * @values: + * TT_MS_ID_SYMBOL_CS :: + * Corresponds to Microsoft symbol encoding. See + * @FT_ENCODING_MS_SYMBOL. + * + * TT_MS_ID_UNICODE_CS :: + * Corresponds to a Microsoft WGL4 charmap, matching Unicode. See + * @FT_ENCODING_UNICODE. + * + * TT_MS_ID_SJIS :: + * Corresponds to SJIS Japanese encoding. See @FT_ENCODING_SJIS. + * + * TT_MS_ID_GB2312 :: + * Corresponds to Simplified Chinese as used in Mainland China. See + * @FT_ENCODING_GB2312. + * + * TT_MS_ID_BIG_5 :: + * Corresponds to Traditional Chinese as used in Taiwan and Hong Kong. + * See @FT_ENCODING_BIG5. + * + * TT_MS_ID_WANSUNG :: + * Corresponds to Korean Wansung encoding. See @FT_ENCODING_WANSUNG. + * + * TT_MS_ID_JOHAB :: + * Corresponds to Johab encoding. See @FT_ENCODING_JOHAB. + * + * TT_MS_ID_UCS_4 :: + * Corresponds to UCS-4 or UTF-32 charmaps. This has been added to + * the OpenType specification version 1.4 (mid-2001.) + */ + +#define TT_MS_ID_SYMBOL_CS 0 +#define TT_MS_ID_UNICODE_CS 1 +#define TT_MS_ID_SJIS 2 +#define TT_MS_ID_GB2312 3 +#define TT_MS_ID_BIG_5 4 +#define TT_MS_ID_WANSUNG 5 +#define TT_MS_ID_JOHAB 6 +#define TT_MS_ID_UCS_4 10 + + + /*********************************************************************** + * + * @enum: + * TT_ADOBE_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_ADOBE charmaps. This is a FreeType-specific extension! + * + * @values: + * TT_ADOBE_ID_STANDARD :: + * Adobe standard encoding. + * TT_ADOBE_ID_EXPERT :: + * Adobe expert encoding. + * TT_ADOBE_ID_CUSTOM :: + * Adobe custom encoding. + * TT_ADOBE_ID_LATIN_1 :: + * Adobe Latin~1 encoding. + */ + +#define TT_ADOBE_ID_STANDARD 0 +#define TT_ADOBE_ID_EXPERT 1 +#define TT_ADOBE_ID_CUSTOM 2 +#define TT_ADOBE_ID_LATIN_1 3 + + + /*************************************************************************/ + /* */ + /* Possible values of the language identifier field in the name records */ + /* of the TTF `name' table if the `platform' identifier code is */ + /* TT_PLATFORM_MACINTOSH. */ + /* */ + /* The canonical source for the Apple assigned Language ID's is at */ + /* */ + /* http://fonts.apple.com/TTRefMan/RM06/Chap6name.html */ + /* */ +#define TT_MAC_LANGID_ENGLISH 0 +#define TT_MAC_LANGID_FRENCH 1 +#define TT_MAC_LANGID_GERMAN 2 +#define TT_MAC_LANGID_ITALIAN 3 +#define TT_MAC_LANGID_DUTCH 4 +#define TT_MAC_LANGID_SWEDISH 5 +#define TT_MAC_LANGID_SPANISH 6 +#define TT_MAC_LANGID_DANISH 7 +#define TT_MAC_LANGID_PORTUGUESE 8 +#define TT_MAC_LANGID_NORWEGIAN 9 +#define TT_MAC_LANGID_HEBREW 10 +#define TT_MAC_LANGID_JAPANESE 11 +#define TT_MAC_LANGID_ARABIC 12 +#define TT_MAC_LANGID_FINNISH 13 +#define TT_MAC_LANGID_GREEK 14 +#define TT_MAC_LANGID_ICELANDIC 15 +#define TT_MAC_LANGID_MALTESE 16 +#define TT_MAC_LANGID_TURKISH 17 +#define TT_MAC_LANGID_CROATIAN 18 +#define TT_MAC_LANGID_CHINESE_TRADITIONAL 19 +#define TT_MAC_LANGID_URDU 20 +#define TT_MAC_LANGID_HINDI 21 +#define TT_MAC_LANGID_THAI 22 +#define TT_MAC_LANGID_KOREAN 23 +#define TT_MAC_LANGID_LITHUANIAN 24 +#define TT_MAC_LANGID_POLISH 25 +#define TT_MAC_LANGID_HUNGARIAN 26 +#define TT_MAC_LANGID_ESTONIAN 27 +#define TT_MAC_LANGID_LETTISH 28 +#define TT_MAC_LANGID_SAAMISK 29 +#define TT_MAC_LANGID_FAEROESE 30 +#define TT_MAC_LANGID_FARSI 31 +#define TT_MAC_LANGID_RUSSIAN 32 +#define TT_MAC_LANGID_CHINESE_SIMPLIFIED 33 +#define TT_MAC_LANGID_FLEMISH 34 +#define TT_MAC_LANGID_IRISH 35 +#define TT_MAC_LANGID_ALBANIAN 36 +#define TT_MAC_LANGID_ROMANIAN 37 +#define TT_MAC_LANGID_CZECH 38 +#define TT_MAC_LANGID_SLOVAK 39 +#define TT_MAC_LANGID_SLOVENIAN 40 +#define TT_MAC_LANGID_YIDDISH 41 +#define TT_MAC_LANGID_SERBIAN 42 +#define TT_MAC_LANGID_MACEDONIAN 43 +#define TT_MAC_LANGID_BULGARIAN 44 +#define TT_MAC_LANGID_UKRAINIAN 45 +#define TT_MAC_LANGID_BYELORUSSIAN 46 +#define TT_MAC_LANGID_UZBEK 47 +#define TT_MAC_LANGID_KAZAKH 48 +#define TT_MAC_LANGID_AZERBAIJANI 49 +#define TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT 49 +#define TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT 50 +#define TT_MAC_LANGID_ARMENIAN 51 +#define TT_MAC_LANGID_GEORGIAN 52 +#define TT_MAC_LANGID_MOLDAVIAN 53 +#define TT_MAC_LANGID_KIRGHIZ 54 +#define TT_MAC_LANGID_TAJIKI 55 +#define TT_MAC_LANGID_TURKMEN 56 +#define TT_MAC_LANGID_MONGOLIAN 57 +#define TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT 57 +#define TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT 58 +#define TT_MAC_LANGID_PASHTO 59 +#define TT_MAC_LANGID_KURDISH 60 +#define TT_MAC_LANGID_KASHMIRI 61 +#define TT_MAC_LANGID_SINDHI 62 +#define TT_MAC_LANGID_TIBETAN 63 +#define TT_MAC_LANGID_NEPALI 64 +#define TT_MAC_LANGID_SANSKRIT 65 +#define TT_MAC_LANGID_MARATHI 66 +#define TT_MAC_LANGID_BENGALI 67 +#define TT_MAC_LANGID_ASSAMESE 68 +#define TT_MAC_LANGID_GUJARATI 69 +#define TT_MAC_LANGID_PUNJABI 70 +#define TT_MAC_LANGID_ORIYA 71 +#define TT_MAC_LANGID_MALAYALAM 72 +#define TT_MAC_LANGID_KANNADA 73 +#define TT_MAC_LANGID_TAMIL 74 +#define TT_MAC_LANGID_TELUGU 75 +#define TT_MAC_LANGID_SINHALESE 76 +#define TT_MAC_LANGID_BURMESE 77 +#define TT_MAC_LANGID_KHMER 78 +#define TT_MAC_LANGID_LAO 79 +#define TT_MAC_LANGID_VIETNAMESE 80 +#define TT_MAC_LANGID_INDONESIAN 81 +#define TT_MAC_LANGID_TAGALOG 82 +#define TT_MAC_LANGID_MALAY_ROMAN_SCRIPT 83 +#define TT_MAC_LANGID_MALAY_ARABIC_SCRIPT 84 +#define TT_MAC_LANGID_AMHARIC 85 +#define TT_MAC_LANGID_TIGRINYA 86 +#define TT_MAC_LANGID_GALLA 87 +#define TT_MAC_LANGID_SOMALI 88 +#define TT_MAC_LANGID_SWAHILI 89 +#define TT_MAC_LANGID_RUANDA 90 +#define TT_MAC_LANGID_RUNDI 91 +#define TT_MAC_LANGID_CHEWA 92 +#define TT_MAC_LANGID_MALAGASY 93 +#define TT_MAC_LANGID_ESPERANTO 94 +#define TT_MAC_LANGID_WELSH 128 +#define TT_MAC_LANGID_BASQUE 129 +#define TT_MAC_LANGID_CATALAN 130 +#define TT_MAC_LANGID_LATIN 131 +#define TT_MAC_LANGID_QUECHUA 132 +#define TT_MAC_LANGID_GUARANI 133 +#define TT_MAC_LANGID_AYMARA 134 +#define TT_MAC_LANGID_TATAR 135 +#define TT_MAC_LANGID_UIGHUR 136 +#define TT_MAC_LANGID_DZONGKHA 137 +#define TT_MAC_LANGID_JAVANESE 138 +#define TT_MAC_LANGID_SUNDANESE 139 + + +#if 0 /* these seem to be errors that have been dropped */ + +#define TT_MAC_LANGID_SCOTTISH_GAELIC 140 +#define TT_MAC_LANGID_IRISH_GAELIC 141 + +#endif + + + /* The following codes are new as of 2000-03-10 */ +#define TT_MAC_LANGID_GALICIAN 140 +#define TT_MAC_LANGID_AFRIKAANS 141 +#define TT_MAC_LANGID_BRETON 142 +#define TT_MAC_LANGID_INUKTITUT 143 +#define TT_MAC_LANGID_SCOTTISH_GAELIC 144 +#define TT_MAC_LANGID_MANX_GAELIC 145 +#define TT_MAC_LANGID_IRISH_GAELIC 146 +#define TT_MAC_LANGID_TONGAN 147 +#define TT_MAC_LANGID_GREEK_POLYTONIC 148 +#define TT_MAC_LANGID_GREELANDIC 149 +#define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT 150 + + + /*************************************************************************/ + /* */ + /* Possible values of the language identifier field in the name records */ + /* of the TTF `name' table if the `platform' identifier code is */ + /* TT_PLATFORM_MICROSOFT. */ + /* */ + /* The canonical source for the MS assigned LCID's (seems to) be at */ + /* */ + /* http://www.microsoft.com/globaldev/reference/lcid-all.mspx */ + /* */ + /* It used to be at various places, among them */ + /* */ + /* http://www.microsoft.com/typography/OTSPEC/lcid-cp.txt */ + /* http://www.microsoft.com/globaldev/reference/loclanghome.asp */ + /* http://support.microsoft.com/support/kb/articles/Q224/8/04.ASP */ + /* http://msdn.microsoft.com/library/en-us/passport25/ */ + /* NET_Passport_VBScript_Documentation/Single_Sign_In/ */ + /* Advanced_Single_Sign_In/Localization_and_LCIDs.asp */ + /* */ + /* Hopefully, it seems now that the Globaldev site prevails... */ + /* (updated by Antoine, 2004-02-17) */ + +#define TT_MS_LANGID_ARABIC_GENERAL 0x0001 +#define TT_MS_LANGID_ARABIC_SAUDI_ARABIA 0x0401 +#define TT_MS_LANGID_ARABIC_IRAQ 0x0801 +#define TT_MS_LANGID_ARABIC_EGYPT 0x0c01 +#define TT_MS_LANGID_ARABIC_LIBYA 0x1001 +#define TT_MS_LANGID_ARABIC_ALGERIA 0x1401 +#define TT_MS_LANGID_ARABIC_MOROCCO 0x1801 +#define TT_MS_LANGID_ARABIC_TUNISIA 0x1c01 +#define TT_MS_LANGID_ARABIC_OMAN 0x2001 +#define TT_MS_LANGID_ARABIC_YEMEN 0x2401 +#define TT_MS_LANGID_ARABIC_SYRIA 0x2801 +#define TT_MS_LANGID_ARABIC_JORDAN 0x2c01 +#define TT_MS_LANGID_ARABIC_LEBANON 0x3001 +#define TT_MS_LANGID_ARABIC_KUWAIT 0x3401 +#define TT_MS_LANGID_ARABIC_UAE 0x3801 +#define TT_MS_LANGID_ARABIC_BAHRAIN 0x3c01 +#define TT_MS_LANGID_ARABIC_QATAR 0x4001 +#define TT_MS_LANGID_BULGARIAN_BULGARIA 0x0402 +#define TT_MS_LANGID_CATALAN_SPAIN 0x0403 +#define TT_MS_LANGID_CHINESE_GENERAL 0x0004 +#define TT_MS_LANGID_CHINESE_TAIWAN 0x0404 +#define TT_MS_LANGID_CHINESE_PRC 0x0804 +#define TT_MS_LANGID_CHINESE_HONG_KONG 0x0c04 +#define TT_MS_LANGID_CHINESE_SINGAPORE 0x1004 + +#if 1 /* this looks like the correct value */ +#define TT_MS_LANGID_CHINESE_MACAU 0x1404 +#else /* but beware, Microsoft may change its mind... + the most recent Word reference has the following: */ +#define TT_MS_LANGID_CHINESE_MACAU TT_MS_LANGID_CHINESE_HONG_KONG +#endif + +#if 0 /* used only with .NET `cultures'; commented out */ +#define TT_MS_LANGID_CHINESE_TRADITIONAL 0x7C04 +#endif + +#define TT_MS_LANGID_CZECH_CZECH_REPUBLIC 0x0405 +#define TT_MS_LANGID_DANISH_DENMARK 0x0406 +#define TT_MS_LANGID_GERMAN_GERMANY 0x0407 +#define TT_MS_LANGID_GERMAN_SWITZERLAND 0x0807 +#define TT_MS_LANGID_GERMAN_AUSTRIA 0x0c07 +#define TT_MS_LANGID_GERMAN_LUXEMBOURG 0x1007 +#define TT_MS_LANGID_GERMAN_LIECHTENSTEI 0x1407 +#define TT_MS_LANGID_GREEK_GREECE 0x0408 + + /* don't ask what this one means... It is commented out currently. */ +#if 0 +#define TT_MS_LANGID_GREEK_GREECE2 0x2008 +#endif + +#define TT_MS_LANGID_ENGLISH_GENERAL 0x0009 +#define TT_MS_LANGID_ENGLISH_UNITED_STATES 0x0409 +#define TT_MS_LANGID_ENGLISH_UNITED_KINGDOM 0x0809 +#define TT_MS_LANGID_ENGLISH_AUSTRALIA 0x0c09 +#define TT_MS_LANGID_ENGLISH_CANADA 0x1009 +#define TT_MS_LANGID_ENGLISH_NEW_ZEALAND 0x1409 +#define TT_MS_LANGID_ENGLISH_IRELAND 0x1809 +#define TT_MS_LANGID_ENGLISH_SOUTH_AFRICA 0x1c09 +#define TT_MS_LANGID_ENGLISH_JAMAICA 0x2009 +#define TT_MS_LANGID_ENGLISH_CARIBBEAN 0x2409 +#define TT_MS_LANGID_ENGLISH_BELIZE 0x2809 +#define TT_MS_LANGID_ENGLISH_TRINIDAD 0x2c09 +#define TT_MS_LANGID_ENGLISH_ZIMBABWE 0x3009 +#define TT_MS_LANGID_ENGLISH_PHILIPPINES 0x3409 +#define TT_MS_LANGID_ENGLISH_INDONESIA 0x3809 +#define TT_MS_LANGID_ENGLISH_HONG_KONG 0x3c09 +#define TT_MS_LANGID_ENGLISH_INDIA 0x4009 +#define TT_MS_LANGID_ENGLISH_MALAYSIA 0x4409 +#define TT_MS_LANGID_ENGLISH_SINGAPORE 0x4809 +#define TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT 0x040a +#define TT_MS_LANGID_SPANISH_MEXICO 0x080a +#define TT_MS_LANGID_SPANISH_SPAIN_INTERNATIONAL_SORT 0x0c0a +#define TT_MS_LANGID_SPANISH_GUATEMALA 0x100a +#define TT_MS_LANGID_SPANISH_COSTA_RICA 0x140a +#define TT_MS_LANGID_SPANISH_PANAMA 0x180a +#define TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC 0x1c0a +#define TT_MS_LANGID_SPANISH_VENEZUELA 0x200a +#define TT_MS_LANGID_SPANISH_COLOMBIA 0x240a +#define TT_MS_LANGID_SPANISH_PERU 0x280a +#define TT_MS_LANGID_SPANISH_ARGENTINA 0x2c0a +#define TT_MS_LANGID_SPANISH_ECUADOR 0x300a +#define TT_MS_LANGID_SPANISH_CHILE 0x340a +#define TT_MS_LANGID_SPANISH_URUGUAY 0x380a +#define TT_MS_LANGID_SPANISH_PARAGUAY 0x3c0a +#define TT_MS_LANGID_SPANISH_BOLIVIA 0x400a +#define TT_MS_LANGID_SPANISH_EL_SALVADOR 0x440a +#define TT_MS_LANGID_SPANISH_HONDURAS 0x480a +#define TT_MS_LANGID_SPANISH_NICARAGUA 0x4c0a +#define TT_MS_LANGID_SPANISH_PUERTO_RICO 0x500a +#define TT_MS_LANGID_SPANISH_UNITED_STATES 0x540a + /* The following ID blatantly violate MS specs by using a */ + /* sublanguage > 0x1F. */ +#define TT_MS_LANGID_SPANISH_LATIN_AMERICA 0xE40aU +#define TT_MS_LANGID_FINNISH_FINLAND 0x040b +#define TT_MS_LANGID_FRENCH_FRANCE 0x040c +#define TT_MS_LANGID_FRENCH_BELGIUM 0x080c +#define TT_MS_LANGID_FRENCH_CANADA 0x0c0c +#define TT_MS_LANGID_FRENCH_SWITZERLAND 0x100c +#define TT_MS_LANGID_FRENCH_LUXEMBOURG 0x140c +#define TT_MS_LANGID_FRENCH_MONACO 0x180c +#define TT_MS_LANGID_FRENCH_WEST_INDIES 0x1c0c +#define TT_MS_LANGID_FRENCH_REUNION 0x200c +#define TT_MS_LANGID_FRENCH_CONGO 0x240c + /* which was formerly: */ +#define TT_MS_LANGID_FRENCH_ZAIRE TT_MS_LANGID_FRENCH_CONGO +#define TT_MS_LANGID_FRENCH_SENEGAL 0x280c +#define TT_MS_LANGID_FRENCH_CAMEROON 0x2c0c +#define TT_MS_LANGID_FRENCH_COTE_D_IVOIRE 0x300c +#define TT_MS_LANGID_FRENCH_MALI 0x340c +#define TT_MS_LANGID_FRENCH_MOROCCO 0x380c +#define TT_MS_LANGID_FRENCH_HAITI 0x3c0c + /* and another violation of the spec (see 0xE40aU) */ +#define TT_MS_LANGID_FRENCH_NORTH_AFRICA 0xE40cU +#define TT_MS_LANGID_HEBREW_ISRAEL 0x040d +#define TT_MS_LANGID_HUNGARIAN_HUNGARY 0x040e +#define TT_MS_LANGID_ICELANDIC_ICELAND 0x040f +#define TT_MS_LANGID_ITALIAN_ITALY 0x0410 +#define TT_MS_LANGID_ITALIAN_SWITZERLAND 0x0810 +#define TT_MS_LANGID_JAPANESE_JAPAN 0x0411 +#define TT_MS_LANGID_KOREAN_EXTENDED_WANSUNG_KOREA 0x0412 +#define TT_MS_LANGID_KOREAN_JOHAB_KOREA 0x0812 +#define TT_MS_LANGID_DUTCH_NETHERLANDS 0x0413 +#define TT_MS_LANGID_DUTCH_BELGIUM 0x0813 +#define TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL 0x0414 +#define TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK 0x0814 +#define TT_MS_LANGID_POLISH_POLAND 0x0415 +#define TT_MS_LANGID_PORTUGUESE_BRAZIL 0x0416 +#define TT_MS_LANGID_PORTUGUESE_PORTUGAL 0x0816 +#define TT_MS_LANGID_RHAETO_ROMANIC_SWITZERLAND 0x0417 +#define TT_MS_LANGID_ROMANIAN_ROMANIA 0x0418 +#define TT_MS_LANGID_MOLDAVIAN_MOLDAVIA 0x0818 +#define TT_MS_LANGID_RUSSIAN_RUSSIA 0x0419 +#define TT_MS_LANGID_RUSSIAN_MOLDAVIA 0x0819 +#define TT_MS_LANGID_CROATIAN_CROATIA 0x041a +#define TT_MS_LANGID_SERBIAN_SERBIA_LATIN 0x081a +#define TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC 0x0c1a + +#if 0 /* this used to be this value, but it looks like we were wrong */ +#define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x101a +#else /* current sources say */ +#define TT_MS_LANGID_CROATIAN_BOSNIA_HERZEGOVINA 0x101a +#define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x141a + /* and XPsp2 Platform SDK added (2004-07-26) */ + /* Names are shortened to be significant within 40 chars. */ +#define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_LATIN 0x181a +#define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC 0x181a +#endif + +#define TT_MS_LANGID_SLOVAK_SLOVAKIA 0x041b +#define TT_MS_LANGID_ALBANIAN_ALBANIA 0x041c +#define TT_MS_LANGID_SWEDISH_SWEDEN 0x041d +#define TT_MS_LANGID_SWEDISH_FINLAND 0x081d +#define TT_MS_LANGID_THAI_THAILAND 0x041e +#define TT_MS_LANGID_TURKISH_TURKEY 0x041f +#define TT_MS_LANGID_URDU_PAKISTAN 0x0420 +#define TT_MS_LANGID_URDU_INDIA 0x0820 +#define TT_MS_LANGID_INDONESIAN_INDONESIA 0x0421 +#define TT_MS_LANGID_UKRAINIAN_UKRAINE 0x0422 +#define TT_MS_LANGID_BELARUSIAN_BELARUS 0x0423 +#define TT_MS_LANGID_SLOVENE_SLOVENIA 0x0424 +#define TT_MS_LANGID_ESTONIAN_ESTONIA 0x0425 +#define TT_MS_LANGID_LATVIAN_LATVIA 0x0426 +#define TT_MS_LANGID_LITHUANIAN_LITHUANIA 0x0427 +#define TT_MS_LANGID_CLASSIC_LITHUANIAN_LITHUANIA 0x0827 +#define TT_MS_LANGID_TAJIK_TAJIKISTAN 0x0428 +#define TT_MS_LANGID_FARSI_IRAN 0x0429 +#define TT_MS_LANGID_VIETNAMESE_VIET_NAM 0x042a +#define TT_MS_LANGID_ARMENIAN_ARMENIA 0x042b +#define TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN 0x042c +#define TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC 0x082c +#define TT_MS_LANGID_BASQUE_SPAIN 0x042d +#define TT_MS_LANGID_SORBIAN_GERMANY 0x042e +#define TT_MS_LANGID_MACEDONIAN_MACEDONIA 0x042f +#define TT_MS_LANGID_SUTU_SOUTH_AFRICA 0x0430 +#define TT_MS_LANGID_TSONGA_SOUTH_AFRICA 0x0431 +#define TT_MS_LANGID_TSWANA_SOUTH_AFRICA 0x0432 +#define TT_MS_LANGID_VENDA_SOUTH_AFRICA 0x0433 +#define TT_MS_LANGID_XHOSA_SOUTH_AFRICA 0x0434 +#define TT_MS_LANGID_ZULU_SOUTH_AFRICA 0x0435 +#define TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA 0x0436 +#define TT_MS_LANGID_GEORGIAN_GEORGIA 0x0437 +#define TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS 0x0438 +#define TT_MS_LANGID_HINDI_INDIA 0x0439 +#define TT_MS_LANGID_MALTESE_MALTA 0x043a + /* Added by XPsp2 Platform SDK (2004-07-26) */ +#define TT_MS_LANGID_SAMI_NORTHERN_NORWAY 0x043b +#define TT_MS_LANGID_SAMI_NORTHERN_SWEDEN 0x083b +#define TT_MS_LANGID_SAMI_NORTHERN_FINLAND 0x0C3b +#define TT_MS_LANGID_SAMI_LULE_NORWAY 0x103b +#define TT_MS_LANGID_SAMI_LULE_SWEDEN 0x143b +#define TT_MS_LANGID_SAMI_SOUTHERN_NORWAY 0x183b +#define TT_MS_LANGID_SAMI_SOUTHERN_SWEDEN 0x1C3b +#define TT_MS_LANGID_SAMI_SKOLT_FINLAND 0x203b +#define TT_MS_LANGID_SAMI_INARI_FINLAND 0x243b + /* ... and we also keep our old identifier... */ +#define TT_MS_LANGID_SAAMI_LAPONIA 0x043b + +#if 0 /* this seems to be a previous inversion */ +#define TT_MS_LANGID_IRISH_GAELIC_IRELAND 0x043c +#define TT_MS_LANGID_SCOTTISH_GAELIC_UNITED_KINGDOM 0x083c +#else +#define TT_MS_LANGID_SCOTTISH_GAELIC_UNITED_KINGDOM 0x083c +#define TT_MS_LANGID_IRISH_GAELIC_IRELAND 0x043c +#endif + +#define TT_MS_LANGID_YIDDISH_GERMANY 0x043d +#define TT_MS_LANGID_MALAY_MALAYSIA 0x043e +#define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083e +#define TT_MS_LANGID_KAZAK_KAZAKSTAN 0x043f +#define TT_MS_LANGID_KIRGHIZ_KIRGHIZSTAN /* Cyrillic*/ 0x0440 + /* alias declared in Windows 2000 */ +#define TT_MS_LANGID_KIRGHIZ_KIRGHIZ_REPUBLIC \ + TT_MS_LANGID_KIRGHIZ_KIRGHIZSTAN + +#define TT_MS_LANGID_SWAHILI_KENYA 0x0441 +#define TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442 +#define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443 +#define TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC 0x0843 +#define TT_MS_LANGID_TATAR_TATARSTAN 0x0444 +#define TT_MS_LANGID_BENGALI_INDIA 0x0445 +#define TT_MS_LANGID_BENGALI_BANGLADESH 0x0845 +#define TT_MS_LANGID_PUNJABI_INDIA 0x0446 +#define TT_MS_LANGID_PUNJABI_ARABIC_PAKISTAN 0x0846 +#define TT_MS_LANGID_GUJARATI_INDIA 0x0447 +#define TT_MS_LANGID_ORIYA_INDIA 0x0448 +#define TT_MS_LANGID_TAMIL_INDIA 0x0449 +#define TT_MS_LANGID_TELUGU_INDIA 0x044a +#define TT_MS_LANGID_KANNADA_INDIA 0x044b +#define TT_MS_LANGID_MALAYALAM_INDIA 0x044c +#define TT_MS_LANGID_ASSAMESE_INDIA 0x044d +#define TT_MS_LANGID_MARATHI_INDIA 0x044e +#define TT_MS_LANGID_SANSKRIT_INDIA 0x044f +#define TT_MS_LANGID_MONGOLIAN_MONGOLIA /* Cyrillic */ 0x0450 +#define TT_MS_LANGID_MONGOLIAN_MONGOLIA_MONGOLIAN 0x0850 +#define TT_MS_LANGID_TIBETAN_CHINA 0x0451 + /* Don't use the next constant! It has */ + /* (1) the wrong spelling (Dzonghka) */ + /* (2) Microsoft doesn't officially define it -- */ + /* at least it is not in the List of Local */ + /* ID Values. */ + /* (3) Dzongkha is not the same language as */ + /* Tibetan, so merging it is wrong anyway. */ + /* */ + /* TT_MS_LANGID_TIBETAN_BHUTAN is correct, BTW. */ +#define TT_MS_LANGID_DZONGHKA_BHUTAN 0x0851 + +#if 0 + /* the following used to be defined */ +#define TT_MS_LANGID_TIBETAN_BHUTAN 0x0451 + /* ... but it was changed; */ +#else + /* So we will continue to #define it, but with the correct value */ +#define TT_MS_LANGID_TIBETAN_BHUTAN TT_MS_LANGID_DZONGHKA_BHUTAN +#endif + +#define TT_MS_LANGID_WELSH_WALES 0x0452 +#define TT_MS_LANGID_KHMER_CAMBODIA 0x0453 +#define TT_MS_LANGID_LAO_LAOS 0x0454 +#define TT_MS_LANGID_BURMESE_MYANMAR 0x0455 +#define TT_MS_LANGID_GALICIAN_SPAIN 0x0456 +#define TT_MS_LANGID_KONKANI_INDIA 0x0457 +#define TT_MS_LANGID_MANIPURI_INDIA /* Bengali */ 0x0458 +#define TT_MS_LANGID_SINDHI_INDIA /* Arabic */ 0x0459 +#define TT_MS_LANGID_SINDHI_PAKISTAN 0x0859 + /* Missing a LCID for Sindhi in Devanagari script */ +#define TT_MS_LANGID_SYRIAC_SYRIA 0x045a +#define TT_MS_LANGID_SINHALESE_SRI_LANKA 0x045b +#define TT_MS_LANGID_CHEROKEE_UNITED_STATES 0x045c +#define TT_MS_LANGID_INUKTITUT_CANADA 0x045d +#define TT_MS_LANGID_AMHARIC_ETHIOPIA 0x045e +#define TT_MS_LANGID_TAMAZIGHT_MOROCCO /* Arabic */ 0x045f +#define TT_MS_LANGID_TAMAZIGHT_MOROCCO_LATIN 0x085f + /* Missing a LCID for Tifinagh script */ +#define TT_MS_LANGID_KASHMIRI_PAKISTAN /* Arabic */ 0x0460 + /* Spelled this way by XPsp2 Platform SDK (2004-07-26) */ + /* script is yet unclear... might be Arabic, Nagari or Sharada */ +#define TT_MS_LANGID_KASHMIRI_SASIA 0x0860 + /* ... and aliased (by MS) for compatibility reasons. */ +#define TT_MS_LANGID_KASHMIRI_INDIA TT_MS_LANGID_KASHMIRI_SASIA +#define TT_MS_LANGID_NEPALI_NEPAL 0x0461 +#define TT_MS_LANGID_NEPALI_INDIA 0x0861 +#define TT_MS_LANGID_FRISIAN_NETHERLANDS 0x0462 +#define TT_MS_LANGID_PASHTO_AFGHANISTAN 0x0463 +#define TT_MS_LANGID_FILIPINO_PHILIPPINES 0x0464 +#define TT_MS_LANGID_DHIVEHI_MALDIVES 0x0465 + /* alias declared in Windows 2000 */ +#define TT_MS_LANGID_DIVEHI_MALDIVES TT_MS_LANGID_DHIVEHI_MALDIVES +#define TT_MS_LANGID_EDO_NIGERIA 0x0466 +#define TT_MS_LANGID_FULFULDE_NIGERIA 0x0467 +#define TT_MS_LANGID_HAUSA_NIGERIA 0x0468 +#define TT_MS_LANGID_IBIBIO_NIGERIA 0x0469 +#define TT_MS_LANGID_YORUBA_NIGERIA 0x046a +#define TT_MS_LANGID_QUECHUA_BOLIVIA 0x046b +#define TT_MS_LANGID_QUECHUA_ECUADOR 0x086b +#define TT_MS_LANGID_QUECHUA_PERU 0x0c6b +#define TT_MS_LANGID_SEPEDI_SOUTH_AFRICA 0x046c + /* Also spelled by XPsp2 Platform SDK (2004-07-26) */ +#define TT_MS_LANGID_SOTHO_SOUTHERN_SOUTH_AFRICA \ + TT_MS_LANGID_SEPEDI_SOUTH_AFRICA + /* language codes 0x046d, 0x046e and 0x046f are (still) unknown. */ +#define TT_MS_LANGID_IGBO_NIGERIA 0x0470 +#define TT_MS_LANGID_KANURI_NIGERIA 0x0471 +#define TT_MS_LANGID_OROMO_ETHIOPIA 0x0472 +#define TT_MS_LANGID_TIGRIGNA_ETHIOPIA 0x0473 +#define TT_MS_LANGID_TIGRIGNA_ERYTHREA 0x0873 + /* also spelled in the `Passport SDK' list as: */ +#define TT_MS_LANGID_TIGRIGNA_ERYTREA TT_MS_LANGID_TIGRIGNA_ERYTHREA +#define TT_MS_LANGID_GUARANI_PARAGUAY 0x0474 +#define TT_MS_LANGID_HAWAIIAN_UNITED_STATES 0x0475 +#define TT_MS_LANGID_LATIN 0x0476 +#define TT_MS_LANGID_SOMALI_SOMALIA 0x0477 + /* Note: Yi does not have a (proper) ISO 639-2 code, since it is mostly */ + /* not written (but OTOH the peculiar writing system is worth */ + /* studying). */ +#define TT_MS_LANGID_YI_CHINA 0x0478 +#define TT_MS_LANGID_PAPIAMENTU_NETHERLANDS_ANTILLES 0x0479 + /* language codes from 0x047a to 0x047f are (still) unknown. */ +#define TT_MS_LANGID_UIGHUR_CHINA 0x0480 +#define TT_MS_LANGID_MAORI_NEW_ZEALAND 0x0481 + +#if 0 /* not deemed useful for fonts */ +#define TT_MS_LANGID_HUMAN_INTERFACE_DEVICE 0x04ff +#endif + + + /*************************************************************************/ + /* */ + /* Possible values of the `name' identifier field in the name records of */ + /* the TTF `name' table. These values are platform independent. */ + /* */ +#define TT_NAME_ID_COPYRIGHT 0 +#define TT_NAME_ID_FONT_FAMILY 1 +#define TT_NAME_ID_FONT_SUBFAMILY 2 +#define TT_NAME_ID_UNIQUE_ID 3 +#define TT_NAME_ID_FULL_NAME 4 +#define TT_NAME_ID_VERSION_STRING 5 +#define TT_NAME_ID_PS_NAME 6 +#define TT_NAME_ID_TRADEMARK 7 + + /* the following values are from the OpenType spec */ +#define TT_NAME_ID_MANUFACTURER 8 +#define TT_NAME_ID_DESIGNER 9 +#define TT_NAME_ID_DESCRIPTION 10 +#define TT_NAME_ID_VENDOR_URL 11 +#define TT_NAME_ID_DESIGNER_URL 12 +#define TT_NAME_ID_LICENSE 13 +#define TT_NAME_ID_LICENSE_URL 14 + /* number 15 is reserved */ +#define TT_NAME_ID_PREFERRED_FAMILY 16 +#define TT_NAME_ID_PREFERRED_SUBFAMILY 17 +#define TT_NAME_ID_MAC_FULL_NAME 18 + + /* The following code is new as of 2000-01-21 */ +#define TT_NAME_ID_SAMPLE_TEXT 19 + + /* This is new in OpenType 1.3 */ +#define TT_NAME_ID_CID_FINDFONT_NAME 20 + + /* This is new in OpenType 1.5 */ +#define TT_NAME_ID_WWS_FAMILY 21 +#define TT_NAME_ID_WWS_SUBFAMILY 22 + + + /*************************************************************************/ + /* */ + /* Bit mask values for the Unicode Ranges from the TTF `OS2 ' table. */ + /* */ + /* Updated 08-Nov-2008. */ + /* */ + + /* Bit 0 Basic Latin */ +#define TT_UCR_BASIC_LATIN (1L << 0) /* U+0020-U+007E */ + /* Bit 1 C1 Controls and Latin-1 Supplement */ +#define TT_UCR_LATIN1_SUPPLEMENT (1L << 1) /* U+0080-U+00FF */ + /* Bit 2 Latin Extended-A */ +#define TT_UCR_LATIN_EXTENDED_A (1L << 2) /* U+0100-U+017F */ + /* Bit 3 Latin Extended-B */ +#define TT_UCR_LATIN_EXTENDED_B (1L << 3) /* U+0180-U+024F */ + /* Bit 4 IPA Extensions */ + /* Phonetic Extensions */ + /* Phonetic Extensions Supplement */ +#define TT_UCR_IPA_EXTENSIONS (1L << 4) /* U+0250-U+02AF */ + /* U+1D00-U+1D7F */ + /* U+1D80-U+1DBF */ + /* Bit 5 Spacing Modifier Letters */ + /* Modifier Tone Letters */ +#define TT_UCR_SPACING_MODIFIER (1L << 5) /* U+02B0-U+02FF */ + /* U+A700-U+A71F */ + /* Bit 6 Combining Diacritical Marks */ + /* Combining Diacritical Marks Supplement */ +#define TT_UCR_COMBINING_DIACRITICS (1L << 6) /* U+0300-U+036F */ + /* U+1DC0-U+1DFF */ + /* Bit 7 Greek and Coptic */ +#define TT_UCR_GREEK (1L << 7) /* U+0370-U+03FF */ + /* Bit 8 Coptic */ +#define TT_UCR_COPTIC (1L << 8) /* U+2C80-U+2CFF */ + /* Bit 9 Cyrillic */ + /* Cyrillic Supplement */ + /* Cyrillic Extended-A */ + /* Cyrillic Extended-B */ +#define TT_UCR_CYRILLIC (1L << 9) /* U+0400-U+04FF */ + /* U+0500-U+052F */ + /* U+2DE0-U+2DFF */ + /* U+A640-U+A69F */ + /* Bit 10 Armenian */ +#define TT_UCR_ARMENIAN (1L << 10) /* U+0530-U+058F */ + /* Bit 11 Hebrew */ +#define TT_UCR_HEBREW (1L << 11) /* U+0590-U+05FF */ + /* Bit 12 Vai */ +#define TT_UCR_VAI (1L << 12) /* U+A500-U+A63F */ + /* Bit 13 Arabic */ + /* Arabic Supplement */ +#define TT_UCR_ARABIC (1L << 13) /* U+0600-U+06FF */ + /* U+0750-U+077F */ + /* Bit 14 NKo */ +#define TT_UCR_NKO (1L << 14) /* U+07C0-U+07FF */ + /* Bit 15 Devanagari */ +#define TT_UCR_DEVANAGARI (1L << 15) /* U+0900-U+097F */ + /* Bit 16 Bengali */ +#define TT_UCR_BENGALI (1L << 16) /* U+0980-U+09FF */ + /* Bit 17 Gurmukhi */ +#define TT_UCR_GURMUKHI (1L << 17) /* U+0A00-U+0A7F */ + /* Bit 18 Gujarati */ +#define TT_UCR_GUJARATI (1L << 18) /* U+0A80-U+0AFF */ + /* Bit 19 Oriya */ +#define TT_UCR_ORIYA (1L << 19) /* U+0B00-U+0B7F */ + /* Bit 20 Tamil */ +#define TT_UCR_TAMIL (1L << 20) /* U+0B80-U+0BFF */ + /* Bit 21 Telugu */ +#define TT_UCR_TELUGU (1L << 21) /* U+0C00-U+0C7F */ + /* Bit 22 Kannada */ +#define TT_UCR_KANNADA (1L << 22) /* U+0C80-U+0CFF */ + /* Bit 23 Malayalam */ +#define TT_UCR_MALAYALAM (1L << 23) /* U+0D00-U+0D7F */ + /* Bit 24 Thai */ +#define TT_UCR_THAI (1L << 24) /* U+0E00-U+0E7F */ + /* Bit 25 Lao */ +#define TT_UCR_LAO (1L << 25) /* U+0E80-U+0EFF */ + /* Bit 26 Georgian */ + /* Georgian Supplement */ +#define TT_UCR_GEORGIAN (1L << 26) /* U+10A0-U+10FF */ + /* U+2D00-U+2D2F */ + /* Bit 27 Balinese */ +#define TT_UCR_BALINESE (1L << 27) /* U+1B00-U+1B7F */ + /* Bit 28 Hangul Jamo */ +#define TT_UCR_HANGUL_JAMO (1L << 28) /* U+1100-U+11FF */ + /* Bit 29 Latin Extended Additional */ + /* Latin Extended-C */ + /* Latin Extended-D */ +#define TT_UCR_LATIN_EXTENDED_ADDITIONAL (1L << 29) /* U+1E00-U+1EFF */ + /* U+2C60-U+2C7F */ + /* U+A720-U+A7FF */ + /* Bit 30 Greek Extended */ +#define TT_UCR_GREEK_EXTENDED (1L << 30) /* U+1F00-U+1FFF */ + /* Bit 31 General Punctuation */ + /* Supplemental Punctuation */ +#define TT_UCR_GENERAL_PUNCTUATION (1L << 31) /* U+2000-U+206F */ + /* U+2E00-U+2E7F */ + /* Bit 32 Superscripts And Subscripts */ +#define TT_UCR_SUPERSCRIPTS_SUBSCRIPTS (1L << 0) /* U+2070-U+209F */ + /* Bit 33 Currency Symbols */ +#define TT_UCR_CURRENCY_SYMBOLS (1L << 1) /* U+20A0-U+20CF */ + /* Bit 34 Combining Diacritical Marks For Symbols */ +#define TT_UCR_COMBINING_DIACRITICS_SYMB (1L << 2) /* U+20D0-U+20FF */ + /* Bit 35 Letterlike Symbols */ +#define TT_UCR_LETTERLIKE_SYMBOLS (1L << 3) /* U+2100-U+214F */ + /* Bit 36 Number Forms */ +#define TT_UCR_NUMBER_FORMS (1L << 4) /* U+2150-U+218F */ + /* Bit 37 Arrows */ + /* Supplemental Arrows-A */ + /* Supplemental Arrows-B */ + /* Miscellaneous Symbols and Arrows */ +#define TT_UCR_ARROWS (1L << 5) /* U+2190-U+21FF */ + /* U+27F0-U+27FF */ + /* U+2900-U+297F */ + /* U+2B00-U+2BFF */ + /* Bit 38 Mathematical Operators */ + /* Supplemental Mathematical Operators */ + /* Miscellaneous Mathematical Symbols-A */ + /* Miscellaneous Mathematical Symbols-B */ +#define TT_UCR_MATHEMATICAL_OPERATORS (1L << 6) /* U+2200-U+22FF */ + /* U+2A00-U+2AFF */ + /* U+27C0-U+27EF */ + /* U+2980-U+29FF */ + /* Bit 39 Miscellaneous Technical */ +#define TT_UCR_MISCELLANEOUS_TECHNICAL (1L << 7) /* U+2300-U+23FF */ + /* Bit 40 Control Pictures */ +#define TT_UCR_CONTROL_PICTURES (1L << 8) /* U+2400-U+243F */ + /* Bit 41 Optical Character Recognition */ +#define TT_UCR_OCR (1L << 9) /* U+2440-U+245F */ + /* Bit 42 Enclosed Alphanumerics */ +#define TT_UCR_ENCLOSED_ALPHANUMERICS (1L << 10) /* U+2460-U+24FF */ + /* Bit 43 Box Drawing */ +#define TT_UCR_BOX_DRAWING (1L << 11) /* U+2500-U+257F */ + /* Bit 44 Block Elements */ +#define TT_UCR_BLOCK_ELEMENTS (1L << 12) /* U+2580-U+259F */ + /* Bit 45 Geometric Shapes */ +#define TT_UCR_GEOMETRIC_SHAPES (1L << 13) /* U+25A0-U+25FF */ + /* Bit 46 Miscellaneous Symbols */ +#define TT_UCR_MISCELLANEOUS_SYMBOLS (1L << 14) /* U+2600-U+26FF */ + /* Bit 47 Dingbats */ +#define TT_UCR_DINGBATS (1L << 15) /* U+2700-U+27BF */ + /* Bit 48 CJK Symbols and Punctuation */ +#define TT_UCR_CJK_SYMBOLS (1L << 16) /* U+3000-U+303F */ + /* Bit 49 Hiragana */ +#define TT_UCR_HIRAGANA (1L << 17) /* U+3040-U+309F */ + /* Bit 50 Katakana */ + /* Katakana Phonetic Extensions */ +#define TT_UCR_KATAKANA (1L << 18) /* U+30A0-U+30FF */ + /* U+31F0-U+31FF */ + /* Bit 51 Bopomofo */ + /* Bopomofo Extended */ +#define TT_UCR_BOPOMOFO (1L << 19) /* U+3100-U+312F */ + /* U+31A0-U+31BF */ + /* Bit 52 Hangul Compatibility Jamo */ +#define TT_UCR_HANGUL_COMPATIBILITY_JAMO (1L << 20) /* U+3130-U+318F */ + /* Bit 53 Phags-Pa */ +#define TT_UCR_CJK_MISC (1L << 21) /* U+A840-U+A87F */ +#define TT_UCR_KANBUN TT_UCR_CJK_MISC /* deprecated */ +#define TT_UCR_PHAGSPA + /* Bit 54 Enclosed CJK Letters and Months */ +#define TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS (1L << 22) /* U+3200-U+32FF */ + /* Bit 55 CJK Compatibility */ +#define TT_UCR_CJK_COMPATIBILITY (1L << 23) /* U+3300-U+33FF */ + /* Bit 56 Hangul Syllables */ +#define TT_UCR_HANGUL (1L << 24) /* U+AC00-U+D7A3 */ + /* Bit 57 High Surrogates */ + /* High Private Use Surrogates */ + /* Low Surrogates */ + /* */ + /* According to OpenType specs v.1.3+, */ + /* setting bit 57 implies that there is */ + /* at least one codepoint beyond the */ + /* Basic Multilingual Plane that is */ + /* supported by this font. So it really */ + /* means >= U+10000 */ +#define TT_UCR_SURROGATES (1L << 25) /* U+D800-U+DB7F */ + /* U+DB80-U+DBFF */ + /* U+DC00-U+DFFF */ +#define TT_UCR_NON_PLANE_0 TT_UCR_SURROGATES + /* Bit 58 Phoenician */ +#define TT_UCR_PHOENICIAN (1L << 26) /*U+10900-U+1091F*/ + /* Bit 59 CJK Unified Ideographs */ + /* CJK Radicals Supplement */ + /* Kangxi Radicals */ + /* Ideographic Description Characters */ + /* CJK Unified Ideographs Extension A */ + /* CJK Unified Ideographs Extension B */ + /* Kanbun */ +#define TT_UCR_CJK_UNIFIED_IDEOGRAPHS (1L << 27) /* U+4E00-U+9FFF */ + /* U+2E80-U+2EFF */ + /* U+2F00-U+2FDF */ + /* U+2FF0-U+2FFF */ + /* U+3400-U+4DB5 */ + /*U+20000-U+2A6DF*/ + /* U+3190-U+319F */ + /* Bit 60 Private Use */ +#define TT_UCR_PRIVATE_USE (1L << 28) /* U+E000-U+F8FF */ + /* Bit 61 CJK Strokes */ + /* CJK Compatibility Ideographs */ + /* CJK Compatibility Ideographs Supplement */ +#define TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS (1L << 29) /* U+31C0-U+31EF */ + /* U+F900-U+FAFF */ + /*U+2F800-U+2FA1F*/ + /* Bit 62 Alphabetic Presentation Forms */ +#define TT_UCR_ALPHABETIC_PRESENTATION_FORMS (1L << 30) /* U+FB00-U+FB4F */ + /* Bit 63 Arabic Presentation Forms-A */ +#define TT_UCR_ARABIC_PRESENTATIONS_A (1L << 31) /* U+FB50-U+FDFF */ + /* Bit 64 Combining Half Marks */ +#define TT_UCR_COMBINING_HALF_MARKS (1L << 0) /* U+FE20-U+FE2F */ + /* Bit 65 Vertical forms */ + /* CJK Compatibility Forms */ +#define TT_UCR_CJK_COMPATIBILITY_FORMS (1L << 1) /* U+FE10-U+FE1F */ + /* U+FE30-U+FE4F */ + /* Bit 66 Small Form Variants */ +#define TT_UCR_SMALL_FORM_VARIANTS (1L << 2) /* U+FE50-U+FE6F */ + /* Bit 67 Arabic Presentation Forms-B */ +#define TT_UCR_ARABIC_PRESENTATIONS_B (1L << 3) /* U+FE70-U+FEFE */ + /* Bit 68 Halfwidth and Fullwidth Forms */ +#define TT_UCR_HALFWIDTH_FULLWIDTH_FORMS (1L << 4) /* U+FF00-U+FFEF */ + /* Bit 69 Specials */ +#define TT_UCR_SPECIALS (1L << 5) /* U+FFF0-U+FFFD */ + /* Bit 70 Tibetan */ +#define TT_UCR_TIBETAN (1L << 6) /* U+0F00-U+0FFF */ + /* Bit 71 Syriac */ +#define TT_UCR_SYRIAC (1L << 7) /* U+0700-U+074F */ + /* Bit 72 Thaana */ +#define TT_UCR_THAANA (1L << 8) /* U+0780-U+07BF */ + /* Bit 73 Sinhala */ +#define TT_UCR_SINHALA (1L << 9) /* U+0D80-U+0DFF */ + /* Bit 74 Myanmar */ +#define TT_UCR_MYANMAR (1L << 10) /* U+1000-U+109F */ + /* Bit 75 Ethiopic */ + /* Ethiopic Supplement */ + /* Ethiopic Extended */ +#define TT_UCR_ETHIOPIC (1L << 11) /* U+1200-U+137F */ + /* U+1380-U+139F */ + /* U+2D80-U+2DDF */ + /* Bit 76 Cherokee */ +#define TT_UCR_CHEROKEE (1L << 12) /* U+13A0-U+13FF */ + /* Bit 77 Unified Canadian Aboriginal Syllabics */ +#define TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS (1L << 13) /* U+1400-U+167F */ + /* Bit 78 Ogham */ +#define TT_UCR_OGHAM (1L << 14) /* U+1680-U+169F */ + /* Bit 79 Runic */ +#define TT_UCR_RUNIC (1L << 15) /* U+16A0-U+16FF */ + /* Bit 80 Khmer */ + /* Khmer Symbols */ +#define TT_UCR_KHMER (1L << 16) /* U+1780-U+17FF */ + /* U+19E0-U+19FF */ + /* Bit 81 Mongolian */ +#define TT_UCR_MONGOLIAN (1L << 17) /* U+1800-U+18AF */ + /* Bit 82 Braille Patterns */ +#define TT_UCR_BRAILLE (1L << 18) /* U+2800-U+28FF */ + /* Bit 83 Yi Syllables */ + /* Yi Radicals */ +#define TT_UCR_YI (1L << 19) /* U+A000-U+A48F */ + /* U+A490-U+A4CF */ + /* Bit 84 Tagalog */ + /* Hanunoo */ + /* Buhid */ + /* Tagbanwa */ +#define TT_UCR_PHILIPPINE (1L << 20) /* U+1700-U+171F */ + /* U+1720-U+173F */ + /* U+1740-U+175F */ + /* U+1760-U+177F */ + /* Bit 85 Old Italic */ +#define TT_UCR_OLD_ITALIC (1L << 21) /*U+10300-U+1032F*/ + /* Bit 86 Gothic */ +#define TT_UCR_GOTHIC (1L << 22) /*U+10330-U+1034F*/ + /* Bit 87 Deseret */ +#define TT_UCR_DESERET (1L << 23) /*U+10400-U+1044F*/ + /* Bit 88 Byzantine Musical Symbols */ + /* Musical Symbols */ + /* Ancient Greek Musical Notation */ +#define TT_UCR_MUSICAL_SYMBOLS (1L << 24) /*U+1D000-U+1D0FF*/ + /*U+1D100-U+1D1FF*/ + /*U+1D200-U+1D24F*/ + /* Bit 89 Mathematical Alphanumeric Symbols */ +#define TT_UCR_MATH_ALPHANUMERIC_SYMBOLS (1L << 25) /*U+1D400-U+1D7FF*/ + /* Bit 90 Private Use (plane 15) */ + /* Private Use (plane 16) */ +#define TT_UCR_PRIVATE_USE_SUPPLEMENTARY (1L << 26) /*U+F0000-U+FFFFD*/ + /*U+100000-U+10FFFD*/ + /* Bit 91 Variation Selectors */ + /* Variation Selectors Supplement */ +#define TT_UCR_VARIATION_SELECTORS (1L << 27) /* U+FE00-U+FE0F */ + /*U+E0100-U+E01EF*/ + /* Bit 92 Tags */ +#define TT_UCR_TAGS (1L << 28) /*U+E0000-U+E007F*/ + /* Bit 93 Limbu */ +#define TT_UCR_LIMBU (1L << 29) /* U+1900-U+194F */ + /* Bit 94 Tai Le */ +#define TT_UCR_TAI_LE (1L << 30) /* U+1950-U+197F */ + /* Bit 95 New Tai Lue */ +#define TT_UCR_NEW_TAI_LUE (1L << 31) /* U+1980-U+19DF */ + /* Bit 96 Buginese */ +#define TT_UCR_BUGINESE (1L << 0) /* U+1A00-U+1A1F */ + /* Bit 97 Glagolitic */ +#define TT_UCR_GLAGOLITIC (1L << 1) /* U+2C00-U+2C5F */ + /* Bit 98 Tifinagh */ +#define TT_UCR_TIFINAGH (1L << 2) /* U+2D30-U+2D7F */ + /* Bit 99 Yijing Hexagram Symbols */ +#define TT_UCR_YIJING (1L << 3) /* U+4DC0-U+4DFF */ + /* Bit 100 Syloti Nagri */ +#define TT_UCR_SYLOTI_NAGRI (1L << 4) /* U+A800-U+A82F */ + /* Bit 101 Linear B Syllabary */ + /* Linear B Ideograms */ + /* Aegean Numbers */ +#define TT_UCR_LINEAR_B (1L << 5) /*U+10000-U+1007F*/ + /*U+10080-U+100FF*/ + /*U+10100-U+1013F*/ + /* Bit 102 Ancient Greek Numbers */ +#define TT_UCR_ANCIENT_GREEK_NUMBERS (1L << 6) /*U+10140-U+1018F*/ + /* Bit 103 Ugaritic */ +#define TT_UCR_UGARITIC (1L << 7) /*U+10380-U+1039F*/ + /* Bit 104 Old Persian */ +#define TT_UCR_OLD_PERSIAN (1L << 8) /*U+103A0-U+103DF*/ + /* Bit 105 Shavian */ +#define TT_UCR_SHAVIAN (1L << 9) /*U+10450-U+1047F*/ + /* Bit 106 Osmanya */ +#define TT_UCR_OSMANYA (1L << 10) /*U+10480-U+104AF*/ + /* Bit 107 Cypriot Syllabary */ +#define TT_UCR_CYPRIOT_SYLLABARY (1L << 11) /*U+10800-U+1083F*/ + /* Bit 108 Kharoshthi */ +#define TT_UCR_KHAROSHTHI (1L << 12) /*U+10A00-U+10A5F*/ + /* Bit 109 Tai Xuan Jing Symbols */ +#define TT_UCR_TAI_XUAN_JING (1L << 13) /*U+1D300-U+1D35F*/ + /* Bit 110 Cuneiform */ + /* Cuneiform Numbers and Punctuation */ +#define TT_UCR_CUNEIFORM (1L << 14) /*U+12000-U+123FF*/ + /*U+12400-U+1247F*/ + /* Bit 111 Counting Rod Numerals */ +#define TT_UCR_COUNTING_ROD_NUMERALS (1L << 15) /*U+1D360-U+1D37F*/ + /* Bit 112 Sundanese */ +#define TT_UCR_SUNDANESE (1L << 16) /* U+1B80-U+1BBF */ + /* Bit 113 Lepcha */ +#define TT_UCR_LEPCHA (1L << 17) /* U+1C00-U+1C4F */ + /* Bit 114 Ol Chiki */ +#define TT_UCR_OL_CHIKI (1L << 18) /* U+1C50-U+1C7F */ + /* Bit 115 Saurashtra */ +#define TT_UCR_SAURASHTRA (1L << 19) /* U+A880-U+A8DF */ + /* Bit 116 Kayah Li */ +#define TT_UCR_KAYAH_LI (1L << 20) /* U+A900-U+A92F */ + /* Bit 117 Rejang */ +#define TT_UCR_REJANG (1L << 21) /* U+A930-U+A95F */ + /* Bit 118 Cham */ +#define TT_UCR_CHAM (1L << 22) /* U+AA00-U+AA5F */ + /* Bit 119 Ancient Symbols */ +#define TT_UCR_ANCIENT_SYMBOLS (1L << 23) /*U+10190-U+101CF*/ + /* Bit 120 Phaistos Disc */ +#define TT_UCR_PHAISTOS_DISC (1L << 24) /*U+101D0-U+101FF*/ + /* Bit 121 Carian */ + /* Lycian */ + /* Lydian */ +#define TT_UCR_OLD_ANATOLIAN (1L << 25) /*U+102A0-U+102DF*/ + /*U+10280-U+1029F*/ + /*U+10920-U+1093F*/ + /* Bit 122 Domino Tiles */ + /* Mahjong Tiles */ +#define TT_UCR_GAME_TILES (1L << 26) /*U+1F030-U+1F09F*/ + /*U+1F000-U+1F02F*/ + /* Bit 123-127 Reserved for process-internal usage */ + + + /*************************************************************************/ + /* */ + /* Some compilers have a very limited length of identifiers. */ + /* */ +#if defined( __TURBOC__ ) && __TURBOC__ < 0x0410 || defined( __PACIFIC__ ) +#define HAVE_LIMIT_ON_IDENTS +#endif + + +#ifndef HAVE_LIMIT_ON_IDENTS + + + /*************************************************************************/ + /* */ + /* Here some alias #defines in order to be clearer. */ + /* */ + /* These are not always #defined to stay within the 31~character limit */ + /* which some compilers have. */ + /* */ + /* Credits go to Dave Hoo <dhoo@flash.net> for pointing out that modern */ + /* Borland compilers (read: from BC++ 3.1 on) can increase this limit. */ + /* If you get a warning with such a compiler, use the -i40 switch. */ + /* */ +#define TT_UCR_ARABIC_PRESENTATION_FORMS_A \ + TT_UCR_ARABIC_PRESENTATIONS_A +#define TT_UCR_ARABIC_PRESENTATION_FORMS_B \ + TT_UCR_ARABIC_PRESENTATIONS_B + +#define TT_UCR_COMBINING_DIACRITICAL_MARKS \ + TT_UCR_COMBINING_DIACRITICS +#define TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \ + TT_UCR_COMBINING_DIACRITICS_SYMB + + +#endif /* !HAVE_LIMIT_ON_IDENTS */ + + +FT_END_HEADER + +#endif /* __TTNAMEID_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/tttables.h b/uppsrc/plugin/FT_fontsys/tttables.h new file mode 100644 index 000000000..7e116126f --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/tttables.h @@ -0,0 +1,763 @@ +/***************************************************************************/ +/* */ +/* tttables.h */ +/* */ +/* Basic SFNT/TrueType tables definitions and interface */ +/* (specification only). */ +/* */ +/* Copyright 1996-2005, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTTABLES_H__ +#define __TTTABLES_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* truetype_tables */ + /* */ + /* <Title> */ + /* TrueType Tables */ + /* */ + /* <Abstract> */ + /* TrueType specific table types and functions. */ + /* */ + /* <Description> */ + /* This section contains the definition of TrueType-specific tables */ + /* as well as some routines used to access and process them. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Header */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType font header table. All */ + /* fields follow the TrueType specification. */ + /* */ + typedef struct TT_Header_ + { + FT_Fixed Table_Version; + FT_Fixed Font_Revision; + + FT_Long CheckSum_Adjust; + FT_Long Magic_Number; + + FT_UShort Flags; + FT_UShort Units_Per_EM; + + FT_Long Created [2]; + FT_Long Modified[2]; + + FT_Short xMin; + FT_Short yMin; + FT_Short xMax; + FT_Short yMax; + + FT_UShort Mac_Style; + FT_UShort Lowest_Rec_PPEM; + + FT_Short Font_Direction; + FT_Short Index_To_Loc_Format; + FT_Short Glyph_Data_Format; + + } TT_Header; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_HoriHeader */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType horizontal header, the `hhea' */ + /* table, as well as the corresponding horizontal metrics table, */ + /* i.e., the `hmtx' table. */ + /* */ + /* <Fields> */ + /* Version :: The table version. */ + /* */ + /* Ascender :: The font's ascender, i.e., the distance */ + /* from the baseline to the top-most of all */ + /* glyph points found in the font. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of the */ + /* glyphs found in the font (maybe ASCII). */ + /* */ + /* You should use the `sTypoAscender' field */ + /* of the OS/2 table instead if you want */ + /* the correct one. */ + /* */ + /* Descender :: The font's descender, i.e., the distance */ + /* from the baseline to the bottom-most of */ + /* all glyph points found in the font. It */ + /* is negative. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of the */ + /* glyphs found in the font (maybe ASCII). */ + /* */ + /* You should use the `sTypoDescender' */ + /* field of the OS/2 table instead if you */ + /* want the correct one. */ + /* */ + /* Line_Gap :: The font's line gap, i.e., the distance */ + /* to add to the ascender and descender to */ + /* get the BTB, i.e., the */ + /* baseline-to-baseline distance for the */ + /* font. */ + /* */ + /* advance_Width_Max :: This field is the maximum of all advance */ + /* widths found in the font. It can be */ + /* used to compute the maximum width of an */ + /* arbitrary string of text. */ + /* */ + /* min_Left_Side_Bearing :: The minimum left side bearing of all */ + /* glyphs within the font. */ + /* */ + /* min_Right_Side_Bearing :: The minimum right side bearing of all */ + /* glyphs within the font. */ + /* */ + /* xMax_Extent :: The maximum horizontal extent (i.e., the */ + /* `width' of a glyph's bounding box) for */ + /* all glyphs in the font. */ + /* */ + /* caret_Slope_Rise :: The rise coefficient of the cursor's */ + /* slope of the cursor (slope=rise/run). */ + /* */ + /* caret_Slope_Run :: The run coefficient of the cursor's */ + /* slope. */ + /* */ + /* Reserved :: 8~reserved bytes. */ + /* */ + /* metric_Data_Format :: Always~0. */ + /* */ + /* number_Of_HMetrics :: Number of HMetrics entries in the `hmtx' */ + /* table -- this value can be smaller than */ + /* the total number of glyphs in the font. */ + /* */ + /* long_metrics :: A pointer into the `hmtx' table. */ + /* */ + /* short_metrics :: A pointer into the `hmtx' table. */ + /* */ + /* <Note> */ + /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */ + /* be identical except for the names of their fields which */ + /* are different. */ + /* */ + /* This ensures that a single function in the `ttload' */ + /* module is able to read both the horizontal and vertical */ + /* headers. */ + /* */ + typedef struct TT_HoriHeader_ + { + FT_Fixed Version; + FT_Short Ascender; + FT_Short Descender; + FT_Short Line_Gap; + + FT_UShort advance_Width_Max; /* advance width maximum */ + + FT_Short min_Left_Side_Bearing; /* minimum left-sb */ + FT_Short min_Right_Side_Bearing; /* minimum right-sb */ + FT_Short xMax_Extent; /* xmax extents */ + FT_Short caret_Slope_Rise; + FT_Short caret_Slope_Run; + FT_Short caret_Offset; + + FT_Short Reserved[4]; + + FT_Short metric_Data_Format; + FT_UShort number_Of_HMetrics; + + /* The following fields are not defined by the TrueType specification */ + /* but they are used to connect the metrics header to the relevant */ + /* `HMTX' table. */ + + void* long_metrics; + void* short_metrics; + + } TT_HoriHeader; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_VertHeader */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType vertical header, the `vhea' */ + /* table, as well as the corresponding vertical metrics table, i.e., */ + /* the `vmtx' table. */ + /* */ + /* <Fields> */ + /* Version :: The table version. */ + /* */ + /* Ascender :: The font's ascender, i.e., the distance */ + /* from the baseline to the top-most of */ + /* all glyph points found in the font. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of */ + /* the glyphs found in the font (maybe */ + /* ASCII). */ + /* */ + /* You should use the `sTypoAscender' */ + /* field of the OS/2 table instead if you */ + /* want the correct one. */ + /* */ + /* Descender :: The font's descender, i.e., the */ + /* distance from the baseline to the */ + /* bottom-most of all glyph points found */ + /* in the font. It is negative. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of */ + /* the glyphs found in the font (maybe */ + /* ASCII). */ + /* */ + /* You should use the `sTypoDescender' */ + /* field of the OS/2 table instead if you */ + /* want the correct one. */ + /* */ + /* Line_Gap :: The font's line gap, i.e., the distance */ + /* to add to the ascender and descender to */ + /* get the BTB, i.e., the */ + /* baseline-to-baseline distance for the */ + /* font. */ + /* */ + /* advance_Height_Max :: This field is the maximum of all */ + /* advance heights found in the font. It */ + /* can be used to compute the maximum */ + /* height of an arbitrary string of text. */ + /* */ + /* min_Top_Side_Bearing :: The minimum top side bearing of all */ + /* glyphs within the font. */ + /* */ + /* min_Bottom_Side_Bearing :: The minimum bottom side bearing of all */ + /* glyphs within the font. */ + /* */ + /* yMax_Extent :: The maximum vertical extent (i.e., the */ + /* `height' of a glyph's bounding box) for */ + /* all glyphs in the font. */ + /* */ + /* caret_Slope_Rise :: The rise coefficient of the cursor's */ + /* slope of the cursor (slope=rise/run). */ + /* */ + /* caret_Slope_Run :: The run coefficient of the cursor's */ + /* slope. */ + /* */ + /* caret_Offset :: The cursor's offset for slanted fonts. */ + /* This value is `reserved' in vmtx */ + /* version 1.0. */ + /* */ + /* Reserved :: 8~reserved bytes. */ + /* */ + /* metric_Data_Format :: Always~0. */ + /* */ + /* number_Of_HMetrics :: Number of VMetrics entries in the */ + /* `vmtx' table -- this value can be */ + /* smaller than the total number of glyphs */ + /* in the font. */ + /* */ + /* long_metrics :: A pointer into the `vmtx' table. */ + /* */ + /* short_metrics :: A pointer into the `vmtx' table. */ + /* */ + /* <Note> */ + /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */ + /* be identical except for the names of their fields which */ + /* are different. */ + /* */ + /* This ensures that a single function in the `ttload' */ + /* module is able to read both the horizontal and vertical */ + /* headers. */ + /* */ + typedef struct TT_VertHeader_ + { + FT_Fixed Version; + FT_Short Ascender; + FT_Short Descender; + FT_Short Line_Gap; + + FT_UShort advance_Height_Max; /* advance height maximum */ + + FT_Short min_Top_Side_Bearing; /* minimum left-sb or top-sb */ + FT_Short min_Bottom_Side_Bearing; /* minimum right-sb or bottom-sb */ + FT_Short yMax_Extent; /* xmax or ymax extents */ + FT_Short caret_Slope_Rise; + FT_Short caret_Slope_Run; + FT_Short caret_Offset; + + FT_Short Reserved[4]; + + FT_Short metric_Data_Format; + FT_UShort number_Of_VMetrics; + + /* The following fields are not defined by the TrueType specification */ + /* but they're used to connect the metrics header to the relevant */ + /* `HMTX' or `VMTX' table. */ + + void* long_metrics; + void* short_metrics; + + } TT_VertHeader; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_OS2 */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType OS/2 table. This is the long */ + /* table version. All fields comply to the TrueType specification. */ + /* */ + /* Note that we now support old Mac fonts which do not include an */ + /* OS/2 table. In this case, the `version' field is always set to */ + /* 0xFFFF. */ + /* */ + typedef struct TT_OS2_ + { + FT_UShort version; /* 0x0001 - more or 0xFFFF */ + FT_Short xAvgCharWidth; + FT_UShort usWeightClass; + FT_UShort usWidthClass; + FT_Short fsType; + FT_Short ySubscriptXSize; + FT_Short ySubscriptYSize; + FT_Short ySubscriptXOffset; + FT_Short ySubscriptYOffset; + FT_Short ySuperscriptXSize; + FT_Short ySuperscriptYSize; + FT_Short ySuperscriptXOffset; + FT_Short ySuperscriptYOffset; + FT_Short yStrikeoutSize; + FT_Short yStrikeoutPosition; + FT_Short sFamilyClass; + + FT_Byte panose[10]; + + FT_ULong ulUnicodeRange1; /* Bits 0-31 */ + FT_ULong ulUnicodeRange2; /* Bits 32-63 */ + FT_ULong ulUnicodeRange3; /* Bits 64-95 */ + FT_ULong ulUnicodeRange4; /* Bits 96-127 */ + + FT_Char achVendID[4]; + + FT_UShort fsSelection; + FT_UShort usFirstCharIndex; + FT_UShort usLastCharIndex; + FT_Short sTypoAscender; + FT_Short sTypoDescender; + FT_Short sTypoLineGap; + FT_UShort usWinAscent; + FT_UShort usWinDescent; + + /* only version 1 tables: */ + + FT_ULong ulCodePageRange1; /* Bits 0-31 */ + FT_ULong ulCodePageRange2; /* Bits 32-63 */ + + /* only version 2 tables: */ + + FT_Short sxHeight; + FT_Short sCapHeight; + FT_UShort usDefaultChar; + FT_UShort usBreakChar; + FT_UShort usMaxContext; + + } TT_OS2; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Postscript */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType PostScript table. All fields */ + /* comply to the TrueType specification. This structure does not */ + /* reference the PostScript glyph names, which can be nevertheless */ + /* accessed with the `ttpost' module. */ + /* */ + typedef struct TT_Postscript_ + { + FT_Fixed FormatType; + FT_Fixed italicAngle; + FT_Short underlinePosition; + FT_Short underlineThickness; + FT_ULong isFixedPitch; + FT_ULong minMemType42; + FT_ULong maxMemType42; + FT_ULong minMemType1; + FT_ULong maxMemType1; + + /* Glyph names follow in the file, but we don't */ + /* load them by default. See the ttpost.c file. */ + + } TT_Postscript; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_PCLT */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType PCLT table. All fields */ + /* comply to the TrueType specification. */ + /* */ + typedef struct TT_PCLT_ + { + FT_Fixed Version; + FT_ULong FontNumber; + FT_UShort Pitch; + FT_UShort xHeight; + FT_UShort Style; + FT_UShort TypeFamily; + FT_UShort CapHeight; + FT_UShort SymbolSet; + FT_Char TypeFace[16]; + FT_Char CharacterComplement[8]; + FT_Char FileName[6]; + FT_Char StrokeWeight; + FT_Char WidthType; + FT_Byte SerifStyle; + FT_Byte Reserved; + + } TT_PCLT; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_MaxProfile */ + /* */ + /* <Description> */ + /* The maximum profile is a table containing many max values which */ + /* can be used to pre-allocate arrays. This ensures that no memory */ + /* allocation occurs during a glyph load. */ + /* */ + /* <Fields> */ + /* version :: The version number. */ + /* */ + /* numGlyphs :: The number of glyphs in this TrueType */ + /* font. */ + /* */ + /* maxPoints :: The maximum number of points in a */ + /* non-composite TrueType glyph. See also */ + /* the structure element */ + /* `maxCompositePoints'. */ + /* */ + /* maxContours :: The maximum number of contours in a */ + /* non-composite TrueType glyph. See also */ + /* the structure element */ + /* `maxCompositeContours'. */ + /* */ + /* maxCompositePoints :: The maximum number of points in a */ + /* composite TrueType glyph. See also the */ + /* structure element `maxPoints'. */ + /* */ + /* maxCompositeContours :: The maximum number of contours in a */ + /* composite TrueType glyph. See also the */ + /* structure element `maxContours'. */ + /* */ + /* maxZones :: The maximum number of zones used for */ + /* glyph hinting. */ + /* */ + /* maxTwilightPoints :: The maximum number of points in the */ + /* twilight zone used for glyph hinting. */ + /* */ + /* maxStorage :: The maximum number of elements in the */ + /* storage area used for glyph hinting. */ + /* */ + /* maxFunctionDefs :: The maximum number of function */ + /* definitions in the TrueType bytecode for */ + /* this font. */ + /* */ + /* maxInstructionDefs :: The maximum number of instruction */ + /* definitions in the TrueType bytecode for */ + /* this font. */ + /* */ + /* maxStackElements :: The maximum number of stack elements used */ + /* during bytecode interpretation. */ + /* */ + /* maxSizeOfInstructions :: The maximum number of TrueType opcodes */ + /* used for glyph hinting. */ + /* */ + /* maxComponentElements :: The maximum number of simple (i.e., non- */ + /* composite) glyphs in a composite glyph. */ + /* */ + /* maxComponentDepth :: The maximum nesting depth of composite */ + /* glyphs. */ + /* */ + /* <Note> */ + /* This structure is only used during font loading. */ + /* */ + typedef struct TT_MaxProfile_ + { + FT_Fixed version; + FT_UShort numGlyphs; + FT_UShort maxPoints; + FT_UShort maxContours; + FT_UShort maxCompositePoints; + FT_UShort maxCompositeContours; + FT_UShort maxZones; + FT_UShort maxTwilightPoints; + FT_UShort maxStorage; + FT_UShort maxFunctionDefs; + FT_UShort maxInstructionDefs; + FT_UShort maxStackElements; + FT_UShort maxSizeOfInstructions; + FT_UShort maxComponentElements; + FT_UShort maxComponentDepth; + + } TT_MaxProfile; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Sfnt_Tag */ + /* */ + /* <Description> */ + /* An enumeration used to specify the index of an SFNT table. */ + /* Used in the @FT_Get_Sfnt_Table API function. */ + /* */ + typedef enum FT_Sfnt_Tag_ + { + ft_sfnt_head = 0, /* TT_Header */ + ft_sfnt_maxp = 1, /* TT_MaxProfile */ + ft_sfnt_os2 = 2, /* TT_OS2 */ + ft_sfnt_hhea = 3, /* TT_HoriHeader */ + ft_sfnt_vhea = 4, /* TT_VertHeader */ + ft_sfnt_post = 5, /* TT_Postscript */ + ft_sfnt_pclt = 6, /* TT_PCLT */ + + sfnt_max /* internal end mark */ + + } FT_Sfnt_Tag; + + /* */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Sfnt_Table */ + /* */ + /* <Description> */ + /* Return a pointer to a given SFNT table within a face. */ + /* */ + /* <Input> */ + /* face :: A handle to the source. */ + /* */ + /* tag :: The index of the SFNT table. */ + /* */ + /* <Return> */ + /* A type-less pointer to the table. This will be~0 in case of */ + /* error, or if the corresponding table was not found *OR* loaded */ + /* from the file. */ + /* */ + /* Use a typecast according to `tag' to access the structure */ + /* elements. */ + /* */ + /* <Note> */ + /* The table is owned by the face object and disappears with it. */ + /* */ + /* This function is only useful to access SFNT tables that are loaded */ + /* by the sfnt, truetype, and opentype drivers. See @FT_Sfnt_Tag for */ + /* a list. */ + /* */ + FT_EXPORT( void* ) + FT_Get_Sfnt_Table( FT_Face face, + FT_Sfnt_Tag tag ); + + + /************************************************************************** + * + * @function: + * FT_Load_Sfnt_Table + * + * @description: + * Load any font table into client memory. + * + * @input: + * face :: + * A handle to the source face. + * + * tag :: + * The four-byte tag of the table to load. Use the value~0 if you want + * to access the whole font file. Otherwise, you can use one of the + * definitions found in the @FT_TRUETYPE_TAGS_H file, or forge a new + * one with @FT_MAKE_TAG. + * + * offset :: + * The starting offset in the table (or file if tag == 0). + * + * @output: + * buffer :: + * The target buffer address. The client must ensure that the memory + * array is big enough to hold the data. + * + * @inout: + * length :: + * If the `length' parameter is NULL, then try to load the whole table. + * Return an error code if it fails. + * + * Else, if `*length' is~0, exit immediately while returning the + * table's (or file) full size in it. + * + * Else the number of bytes to read from the table or file, from the + * starting offset. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If you need to determine the table's length you should first call this + * function with `*length' set to~0, as in the following example: + * + * { + * FT_ULong length = 0; + * + * + * error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length ); + * if ( error ) { ... table does not exist ... } + * + * buffer = malloc( length ); + * if ( buffer == NULL ) { ... not enough memory ... } + * + * error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length ); + * if ( error ) { ... could not load table ... } + * } + */ + FT_EXPORT( FT_Error ) + FT_Load_Sfnt_Table( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ); + + + /************************************************************************** + * + * @function: + * FT_Sfnt_Table_Info + * + * @description: + * Return information on an SFNT table. + * + * @input: + * face :: + * A handle to the source face. + * + * table_index :: + * The index of an SFNT table. The function returns + * FT_Err_Table_Missing for an invalid value. + * + * @inout: + * tag :: + * The name tag of the SFNT table. If the value is NULL, `table_index' + * is ignored, and `length' returns the number of SFNT tables in the + * font. + * + * @output: + * length :: + * The length of the SFNT table (or the number of SFNT tables, depending + * on `tag'). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * SFNT tables with length zero are treated as missing. + * + */ + FT_EXPORT( FT_Error ) + FT_Sfnt_Table_Info( FT_Face face, + FT_UInt table_index, + FT_ULong *tag, + FT_ULong *length ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_CMap_Language_ID */ + /* */ + /* <Description> */ + /* Return TrueType/sfnt specific cmap language ID. Definitions of */ + /* language ID values are in `freetype/ttnameid.h'. */ + /* */ + /* <Input> */ + /* charmap :: */ + /* The target charmap. */ + /* */ + /* <Return> */ + /* The language ID of `charmap'. If `charmap' doesn't belong to a */ + /* TrueType/sfnt face, just return~0 as the default value. */ + /* */ + FT_EXPORT( FT_ULong ) + FT_Get_CMap_Language_ID( FT_CharMap charmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_CMap_Format */ + /* */ + /* <Description> */ + /* Return TrueType/sfnt specific cmap format. */ + /* */ + /* <Input> */ + /* charmap :: */ + /* The target charmap. */ + /* */ + /* <Return> */ + /* The format of `charmap'. If `charmap' doesn't belong to a */ + /* TrueType/sfnt face, return -1. */ + /* */ + FT_EXPORT( FT_Long ) + FT_Get_CMap_Format( FT_CharMap charmap ); + + /* */ + + +FT_END_HEADER + +#endif /* __TTTABLES_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/tttags.h b/uppsrc/plugin/FT_fontsys/tttags.h new file mode 100644 index 000000000..a2da8b24a --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/tttags.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* tttags.h */ +/* */ +/* Tags for TrueType and OpenType tables (specification only). */ +/* */ +/* Copyright 1996-2001, 2004, 2005, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTAGS_H__ +#define __TTAGS_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + +#define TTAG_avar FT_MAKE_TAG( 'a', 'v', 'a', 'r' ) +#define TTAG_BASE FT_MAKE_TAG( 'B', 'A', 'S', 'E' ) +#define TTAG_bdat FT_MAKE_TAG( 'b', 'd', 'a', 't' ) +#define TTAG_BDF FT_MAKE_TAG( 'B', 'D', 'F', ' ' ) +#define TTAG_bhed FT_MAKE_TAG( 'b', 'h', 'e', 'd' ) +#define TTAG_bloc FT_MAKE_TAG( 'b', 'l', 'o', 'c' ) +#define TTAG_bsln FT_MAKE_TAG( 'b', 's', 'l', 'n' ) +#define TTAG_CFF FT_MAKE_TAG( 'C', 'F', 'F', ' ' ) +#define TTAG_CID FT_MAKE_TAG( 'C', 'I', 'D', ' ' ) +#define TTAG_cmap FT_MAKE_TAG( 'c', 'm', 'a', 'p' ) +#define TTAG_cvar FT_MAKE_TAG( 'c', 'v', 'a', 'r' ) +#define TTAG_cvt FT_MAKE_TAG( 'c', 'v', 't', ' ' ) +#define TTAG_DSIG FT_MAKE_TAG( 'D', 'S', 'I', 'G' ) +#define TTAG_EBDT FT_MAKE_TAG( 'E', 'B', 'D', 'T' ) +#define TTAG_EBLC FT_MAKE_TAG( 'E', 'B', 'L', 'C' ) +#define TTAG_EBSC FT_MAKE_TAG( 'E', 'B', 'S', 'C' ) +#define TTAG_feat FT_MAKE_TAG( 'f', 'e', 'a', 't' ) +#define TTAG_FOND FT_MAKE_TAG( 'F', 'O', 'N', 'D' ) +#define TTAG_fpgm FT_MAKE_TAG( 'f', 'p', 'g', 'm' ) +#define TTAG_fvar FT_MAKE_TAG( 'f', 'v', 'a', 'r' ) +#define TTAG_gasp FT_MAKE_TAG( 'g', 'a', 's', 'p' ) +#define TTAG_GDEF FT_MAKE_TAG( 'G', 'D', 'E', 'F' ) +#define TTAG_glyf FT_MAKE_TAG( 'g', 'l', 'y', 'f' ) +#define TTAG_GPOS FT_MAKE_TAG( 'G', 'P', 'O', 'S' ) +#define TTAG_GSUB FT_MAKE_TAG( 'G', 'S', 'U', 'B' ) +#define TTAG_gvar FT_MAKE_TAG( 'g', 'v', 'a', 'r' ) +#define TTAG_hdmx FT_MAKE_TAG( 'h', 'd', 'm', 'x' ) +#define TTAG_head FT_MAKE_TAG( 'h', 'e', 'a', 'd' ) +#define TTAG_hhea FT_MAKE_TAG( 'h', 'h', 'e', 'a' ) +#define TTAG_hmtx FT_MAKE_TAG( 'h', 'm', 't', 'x' ) +#define TTAG_JSTF FT_MAKE_TAG( 'J', 'S', 'T', 'F' ) +#define TTAG_just FT_MAKE_TAG( 'j', 'u', 's', 't' ) +#define TTAG_kern FT_MAKE_TAG( 'k', 'e', 'r', 'n' ) +#define TTAG_lcar FT_MAKE_TAG( 'l', 'c', 'a', 'r' ) +#define TTAG_loca FT_MAKE_TAG( 'l', 'o', 'c', 'a' ) +#define TTAG_LTSH FT_MAKE_TAG( 'L', 'T', 'S', 'H' ) +#define TTAG_LWFN FT_MAKE_TAG( 'L', 'W', 'F', 'N' ) +#define TTAG_MATH FT_MAKE_TAG( 'M', 'A', 'T', 'H' ) +#define TTAG_maxp FT_MAKE_TAG( 'm', 'a', 'x', 'p' ) +#define TTAG_META FT_MAKE_TAG( 'M', 'E', 'T', 'A' ) +#define TTAG_MMFX FT_MAKE_TAG( 'M', 'M', 'F', 'X' ) +#define TTAG_MMSD FT_MAKE_TAG( 'M', 'M', 'S', 'D' ) +#define TTAG_mort FT_MAKE_TAG( 'm', 'o', 'r', 't' ) +#define TTAG_morx FT_MAKE_TAG( 'm', 'o', 'r', 'x' ) +#define TTAG_name FT_MAKE_TAG( 'n', 'a', 'm', 'e' ) +#define TTAG_opbd FT_MAKE_TAG( 'o', 'p', 'b', 'd' ) +#define TTAG_OS2 FT_MAKE_TAG( 'O', 'S', '/', '2' ) +#define TTAG_OTTO FT_MAKE_TAG( 'O', 'T', 'T', 'O' ) +#define TTAG_PCLT FT_MAKE_TAG( 'P', 'C', 'L', 'T' ) +#define TTAG_POST FT_MAKE_TAG( 'P', 'O', 'S', 'T' ) +#define TTAG_post FT_MAKE_TAG( 'p', 'o', 's', 't' ) +#define TTAG_prep FT_MAKE_TAG( 'p', 'r', 'e', 'p' ) +#define TTAG_prop FT_MAKE_TAG( 'p', 'r', 'o', 'p' ) +#define TTAG_sfnt FT_MAKE_TAG( 's', 'f', 'n', 't' ) +#define TTAG_SING FT_MAKE_TAG( 'S', 'I', 'N', 'G' ) +#define TTAG_trak FT_MAKE_TAG( 't', 'r', 'a', 'k' ) +#define TTAG_true FT_MAKE_TAG( 't', 'r', 'u', 'e' ) +#define TTAG_ttc FT_MAKE_TAG( 't', 't', 'c', ' ' ) +#define TTAG_ttcf FT_MAKE_TAG( 't', 't', 'c', 'f' ) +#define TTAG_TYP1 FT_MAKE_TAG( 'T', 'Y', 'P', '1' ) +#define TTAG_typ1 FT_MAKE_TAG( 't', 'y', 'p', '1' ) +#define TTAG_VDMX FT_MAKE_TAG( 'V', 'D', 'M', 'X' ) +#define TTAG_vhea FT_MAKE_TAG( 'v', 'h', 'e', 'a' ) +#define TTAG_vmtx FT_MAKE_TAG( 'v', 'm', 't', 'x' ) + + +FT_END_HEADER + +#endif /* __TTAGS_H__ */ + + +/* END */ diff --git a/uppsrc/plugin/FT_fontsys/ttunpat.h b/uppsrc/plugin/FT_fontsys/ttunpat.h new file mode 100644 index 000000000..3f61ed403 --- /dev/null +++ b/uppsrc/plugin/FT_fontsys/ttunpat.h @@ -0,0 +1,59 @@ +/***************************************************************************/ +/* */ +/* ttunpat.h */ +/* */ +/* Definitions for the unpatented TrueType hinting system */ +/* */ +/* Copyright 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* Written by Graham Asher <graham.asher@btinternet.com> */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTUNPAT_H__ +#define __TTUNPAT_H__ + + +#include "ft2build.h" +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_UNPATENTED_HINTING + * + * @description: + * A constant used as the tag of an @FT_Parameter structure to indicate + * that unpatented methods only should be used by the TrueType bytecode + * interpreter for a typeface opened by @FT_Open_Face. + * + */ +#define FT_PARAM_TAG_UNPATENTED_HINTING FT_MAKE_TAG( 'u', 'n', 'p', 'a' ) + + /* */ + +FT_END_HEADER + + +#endif /* __TTUNPAT_H__ */ + + +/* END */

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