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Documentation update

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git-svn-id: svn://ultimatepp.org/upp/trunk@1986 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cbpporter 2010-01-30 10:27:43 +00:00
commit edcd1c0297
28 changed files with 1390 additions and 1149 deletions
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15
uppsrc/Draw/src.tpp/RasterEncoder$en-us.tpp
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@ -11,9 +11,9 @@ topic "RasterEncoder";
[b42;2 $$9,9#13035079074754324216151401829390:normal]
[{_}%EN-US
[ {{10000@(113.42.0) [s0; [*@7;4 RasterEncoder]]}}&]
[s4;H0;%- &]
[s3;%- &]
[s1;:RasterEncoder`:`:class:%- [@(0.0.255)3 class][3 _][*3 RasterEncoder]&]
[s2; RasterEncoder serves as consumer of RGBA scanline data. Typical
[s9; RasterEncoder serves as consumer of RGBA scanline data. Typical
use is as encoder into one of common image file formats, like
PNG. RasterEncoder provides an output buffer for client code
(producer) to store the output RGBA scanline, when scanline is
@ -22,19 +22,20 @@ the RGBA scanline into specific format, according to [* format]
protected member variable, then calls WriteLineRaw virtual method
which performs the final processing (e.g. PNGEncoder stores it
into PNG output stream).&]
[s2; [*/ RGBA optimization: ]There is a specific need to avoid redundant
[s9; RGBA optimization: There is a specific need to avoid redundant
conversions and copies when the target is normal Image (with
ImageEncoder). SetLine method can replace the default scanline
buffer provided by RasterEncoder; that way it can use a pointer
to ImageBuffer data and data are then can be stored directly
into ImageBuffer (ImageEncoder calls SetLine in Start and WriteLineRaw
methods). WriteLineRaw can then check whether [%-*@3 data] points
methods). WriteLineRaw can then check whether [%-@3 data] points
to suggested buffer (it is not guaranteed, because producer can
provide yet another scanline buffer in WriteLine) and in that
case, copying into target scanline can be completely skipped.&]
[s3; &]
[s3;%- &]
[ {{10000F(128)G(128)@1 [s0; [* Protected Members List]]}}&]
[s4;H0;%- &]
[s3;%- &]
[s5;:RasterEncoder`:`:format:%- [_^RasterFormat^ RasterFormat]_[* format]&]
[s2; Derived encoder should store the required conversion format
here in Start method.&]
@ -45,8 +46,9 @@ line])&]
[s2; Replaces the default scanline buffer to optimize storing RGBA
data to direct targets..&]
[s3; &]
[s0; &]
[ {{10000F(128)G(128)@1 [s0; [* Public Method List]]}}&]
[s4;H0; &]
[s3; &]
[s5;:RasterEncoder`:`:GetPaletteCount`(`):%- [@(0.0.255) virtual] [@(0.0.255) int]_[* GetPa
letteCount]()&]
[s2; Returns the number of colors in the palette (or zero).&]
@ -158,4 +160,5 @@ nt]_[*@3 cx], [@(0.0.255) int]_[*@3 cy], [_^Raster^ Raster][@(0.0.255) `&]_[*@3
&]
[s2; Initializes encoder for output of image of specified size, optionally
setting the palette.&]
[s3; &]
[s0; ]