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GUI: Keep dst alpha unchanged when blending colours

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This commit is contained in:
Willem Jan Palenstijn 2012-01-31 22:30:27 +01:00
parent 2957321903
commit 264ba4a9ec
1 changed files with 1 additions and 3 deletions
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4
graphics/VectorRendererSpec.cpp
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@ -524,9 +524,7 @@ blendPixelPtr(PixelType *ptr, PixelType color, uint8 alpha) {
(_blueMask & ((idst & _blueMask) +
((int)(((int)(isrc & _blueMask) -
(int)(idst & _blueMask)) * alpha) >> 8))) |
(_alphaMask & ((idst & _alphaMask) +
((alpha >> _format.aLoss) << _format.aShift) -
(((int)(idst & _alphaMask) * alpha) >> 8))));
(idst & _alphaMask));
}
/********************************************************************