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fix for too-thick rendering of edgemarked single pixels or sharp protrusions

This commit is contained in:
nitsuja 2009-07-31 09:58:35 +00:00
parent 14fd8ae6eb
commit 3790d1d52e
1 changed files with 20 additions and 16 deletions
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36
desmume/src/rasterize.cpp
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@ -1017,26 +1017,30 @@ static void SoftRastFramebufferProcess()
#define ISEDGE(dx,dy) ((x+(dx)!=256) && (x+(dx)!=-1) && (y+(dy)!=256) && (y+(dy)!=-1) && self > screen[i+PIXOFFSET(dx,dy)].polyid.opaque)
#define DRAWEDGE(dx,dy) alphaBlend(screenColor[i+PIXOFFSET(dx,dy)], edgeColor)
if(ISEDGE(-1,0))
DRAWEDGE(-1,0);
if(ISEDGE(1,0))
DRAWEDGE(1,0);
if(ISEDGE(0,-1))
DRAWEDGE(0,-1);
if(ISEDGE(0,1))
DRAWEDGE(0,1);
bool upleft = ISEDGE(-1,-1);
bool up = ISEDGE( 0,-1);
bool upright = ISEDGE( 1,-1);
bool left = ISEDGE(-1, 0);
bool right = ISEDGE( 1, 0);
bool downleft = ISEDGE(-1, 1);
bool down = ISEDGE( 0, 1);
bool downright = ISEDGE( 1, 1);
bool diaga = ISEDGE(-1,-1);
bool diagb = ISEDGE(1,-1);
bool diagc = ISEDGE(-1,1);
bool diagd = ISEDGE(1,1);
if(diaga && diagb && diagc && !diagd)
if(upleft && upright && downleft && !downright)
DRAWEDGE(-1,-1);
if(diaga && diagb && !diagc && diagd)
if(up && !down)
DRAWEDGE(0,-1);
if(upleft && upright && !downleft && downright)
DRAWEDGE(1,-1);
if(diaga && !diagb && diagc && diagd)
if(left && !right)
DRAWEDGE(-1,0);
if(right && !left)
DRAWEDGE(1,0);
if(upleft && !upright && downleft && downright)
DRAWEDGE(-1,1);
if(!diaga && diagb && diagc && diagd)
if(down && !up)
DRAWEDGE(0,1);
if(!upleft && upright && downleft && downright)
DRAWEDGE(1,1);
#undef PIXOFFSET