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- fixed: partial transparency wasn't taken into account

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Smoothing of edges could mark textures as non-transparent when hqNx upscale filter is used
See http://forum.drdteam.org/viewtopic.php?t=6812
This commit is contained in:
alexey.lysiuk 2016-03-09 13:17:42 +02:00
parent 03e3410d7f
commit 7134f53638
1 changed files with 11 additions and 1 deletions
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12
src/gl/textures/gl_texture.cpp
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@ -547,6 +547,7 @@ bool FTexture::SmoothEdges(unsigned char * buffer,int w, int h)
int x,y;
bool trans=buffer[MSB]==0; // If I set this to false here the code won't detect textures
// that only contain transparent pixels.
bool semitrans = false;
unsigned char * l1;
if (h<=1 || w<=1) return false; // makes (a) no sense and (b) doesn't work with this code!
@ -555,35 +556,44 @@ bool FTexture::SmoothEdges(unsigned char * buffer,int w, int h)
if (l1[MSB]==0 && !CHKPIX(1)) CHKPIX(w);
else if (l1[MSB]<255) semitrans=true;
l1+=4;
for(x=1;x<w-1;x++, l1+=4)
{
if (l1[MSB]==0 && !CHKPIX(-1) && !CHKPIX(1)) CHKPIX(w);
else if (l1[MSB]<255) semitrans=true;
}
if (l1[MSB]==0 && !CHKPIX(-1)) CHKPIX(w);
else if (l1[MSB]<255) semitrans=true;
l1+=4;
for(y=1;y<h-1;y++)
{
if (l1[MSB]==0 && !CHKPIX(-w) && !CHKPIX(1)) CHKPIX(w);
else if (l1[MSB]<255) semitrans=true;
l1+=4;
for(x=1;x<w-1;x++, l1+=4)
{
if (l1[MSB]==0 && !CHKPIX(-w) && !CHKPIX(-1) && !CHKPIX(1) && !CHKPIX(-w-1) && !CHKPIX(-w+1) && !CHKPIX(w-1) && !CHKPIX(w+1)) CHKPIX(w);
else if (l1[MSB]<255) semitrans=true;
}
if (l1[MSB]==0 && !CHKPIX(-w) && !CHKPIX(-1)) CHKPIX(w);
else if (l1[MSB]<255) semitrans=true;
l1+=4;
}
if (l1[MSB]==0 && !CHKPIX(-w)) CHKPIX(1);
else if (l1[MSB]<255) semitrans=true;
l1+=4;
for(x=1;x<w-1;x++, l1+=4)
{
if (l1[MSB]==0 && !CHKPIX(-w) && !CHKPIX(-1)) CHKPIX(1);
else if (l1[MSB]<255) semitrans=true;
}
if (l1[MSB]==0 && !CHKPIX(-w)) CHKPIX(-1);
else if (l1[MSB]<255) semitrans=true;
return trans;
return trans || semitrans;
}
//===========================================================================