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51 lines
No EOL
948 B
C++
51 lines
No EOL
948 B
C++
#include "SDraw.h"
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NAMESPACE_UPP
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void SDraw::BeginMask()
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{
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attr.mask = true;
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Size sz = buffer.GetSize();
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mask.Add() = buffer;
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buffer.Create(sz);
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SetRbuf();
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Clear(RGBAZero());
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Begin();
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}
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void SDraw::FinishMask()
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{
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RGBA *s = ~buffer;
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RGBA *e = ~buffer + buffer.GetLength();
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byte *t, *cs;
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if(clip.GetCount())
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cs = ~clip.Top();
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if(!attr.hasclip) {
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clip.Add().Alloc(size.cx * size.cy);
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attr.hasclip = true;
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attr.cliplevel = clip.GetCount();
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}
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t = ~clip.Top();
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if(clip.GetCount() == 1)
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while(s < e) {
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byte v = ((s->a + (s->a >> 7)) * (77 * s->r + 151 * s->g + 28 * s->b)) >> 16;
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*t = v;
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s++;
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t++;
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}
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else {
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while(s < e) {
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byte v = ((s->a + (s->a >> 7)) * (77 * s->r + 151 * s->g + 28 * s->b)) >> 16;
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*t = (*cs * (v + (v >> 7))) >> 8;
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s++;
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t++;
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cs++;
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}
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}
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buffer = mask.Top();
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mask.Drop();
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SetRbuf();
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attr.mask = false;
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}
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END_UPP_NAMESPACE |