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Separate dither matrix per color channel

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kaetemi 2015-03-30 12:04:35 +02:00
parent 13baf03ffb
commit 4882d3a45f
1 changed files with 18 additions and 4 deletions
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22
code/nel/tools/3d/tga_2_dds/tga2dds.cpp
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@ -359,13 +359,27 @@ void dividSize (CBitmap &bitmap)
} }
} }
const int bayerDiv8[4][4] = { const int bayerDiv8R[4][4] = {
7, 3, 6, 2,
1, 5, 0, 4,
6, 2, 7, 3,
0, 4, 1, 5,
};
const int bayerDiv8G[4][4] = {
0, 4, 1, 5, 0, 4, 1, 5,
6, 2, 7, 3, 6, 2, 7, 3,
1, 5, 0, 4, 1, 5, 0, 4,
7, 3, 6, 2, 7, 3, 6, 2,
}; };
const int bayerDiv8B[4][4] = {
5, 1, 4, 0,
3, 7, 2, 6,
4, 0, 5, 1,
2, 6, 3, 7,
};
// *************************************************************************** // ***************************************************************************
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
@ -618,9 +632,9 @@ int main(int argc, char **argv)
for (uint32 i = 0; i < rgba.size(); i += 4) for (uint32 i = 0; i < rgba.size(); i += 4)
{ {
NLMISC::CRGBA &c = reinterpret_cast<NLMISC::CRGBA &>(rgba[i]); NLMISC::CRGBA &c = reinterpret_cast<NLMISC::CRGBA &>(rgba[i]);
c.R = (uint8)std::min(255, (int)c.R + bayerDiv8[x % 4][y % 4]); c.R = (uint8)std::min(255, (int)c.R + bayerDiv8R[x % 4][y % 4]);
c.G = (uint8)std::min(255, (int)c.G + bayerDiv8[x % 4][y % 4]); c.G = (uint8)std::min(255, (int)c.G + bayerDiv8G[x % 4][y % 4]);
c.B = (uint8)std::min(255, (int)c.B + bayerDiv8[x % 4][y % 4]); c.B = (uint8)std::min(255, (int)c.B + bayerDiv8B[x % 4][y % 4]);
++x; ++x;
x %= w; x %= w;
if (x == 0) if (x == 0)