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89 lines
1.8 KiB
C++
89 lines
1.8 KiB
C++
#include "glyph.h"
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#if 0
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Image RenderGlyph(Font fnt, int chr, Color color, int angle)
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{
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int cx = fnt[chr];
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int cy = fnt.GetLineHeight();
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ImageBuffer ib(2 * (cx + cy), 2 * (cx + cy));
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BufferPainter sw(ib, MODE_ANTIALIASED);
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sw.Clear(RGBAZero());
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sw.DrawText(cx + cy, cx + cy, angle, WString(chr, 1), fnt, color);
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ib.SetHotSpot(Point(cx + cy, cx + cy));
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return AutoCrop(ib, RGBAZero());
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}
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/*
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Image RenderGlyph(Point at, int angle, int chr, Font fnt, Color color, Size sz)
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{
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int cx = fnt[chr];
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int cy = fnt.GetLineHeight();
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ImageBuffer ib(sz);
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BufferPainter sw(ib);
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sw.Clear(RGBAZero());
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sw.DrawText(at.x, at.y, angle, WString(chr, 1), fnt, color);
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ib.SetHotSpot(at);
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for(RGBA *s = ib; s < ib.End(); s++)
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s->a = (s->a & 0xf8);
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return ib;
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}
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*/
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String CompressGlyph(const Image& m)
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{
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const RGBA *s = m;
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const RGBA *e = s + m.GetLength();
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StringStream r;
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Size sz = m.GetSize();
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r / sz.cx / sz.cy;
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Point p = m.GetHotSpot();
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r / p.x / p.y;
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while(s < e) {
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const RGBA *b = s;
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if(s->a == 0 || s->a == 255) {
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byte a = s->a;
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s++;
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while(s < e && s - b < 63 && s->a == a)
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s++;
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if(a == 0 && s >= e)
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return r;
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r.Put((a & 0x40) | (s - b));
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}
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else {
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r.Put((s->a >> 1) | 0x80);
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s++;
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}
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}
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return r;
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}
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Image DecompressGlyph(const String& g, Color c)
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{
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StringStream r(g);
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Size sz;
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r / sz.cx / sz.cy;
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ImageBuffer ib(sz);
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Point p;
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ib.SetHotSpot(p);
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r / p.x / p.y;
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RGBA *t = ib;
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RGBA *te = ib.End();
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RGBA full = c;
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while(!r.IsEof()) {
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byte b = r.Get();
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ASSERT(t < te);
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if(b & 0x80)
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*t++ = (((b & 0x7f) << 1) | ((b & 0x40) >> 6)) * c;
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else {
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int n = b & 63;
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ASSERT(t + n <= te);
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Fill(t, b & 0x40 ? full : RGBAZero(), n);
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t += n;
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}
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}
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Fill(t, RGBAZero(), te - t);
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return ib;
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}
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#endif
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