diff options
Diffstat (limited to 'graphics/VectorRendererSpec.cpp')
| -rw-r--r-- | graphics/VectorRendererSpec.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/graphics/VectorRendererSpec.cpp b/graphics/VectorRendererSpec.cpp index ac21203da1..62bd560909 100644 --- a/graphics/VectorRendererSpec.cpp +++ b/graphics/VectorRendererSpec.cpp @@ -393,6 +393,7 @@ inline void VectorRendererSpec<PixelType, PixelFormat>:: blendPixelPtr(PixelType *ptr, PixelType color, uint8 alpha) { register int idst = *ptr; register int isrc = color; + int rightShift = 8 - PixelFormat::kAlphaBits; *ptr = (PixelType)( (PixelFormat::kRedMask & ((idst & PixelFormat::kRedMask) + @@ -405,7 +406,7 @@ blendPixelPtr(PixelType *ptr, PixelType color, uint8 alpha) { ((int)(((int)(isrc & PixelFormat::kBlueMask) - (int)(idst & PixelFormat::kBlueMask)) * alpha) >> 8))) | (PixelFormat::kAlphaMask & ((idst & PixelFormat::kAlphaMask) + - ((alpha >> (8 - PixelFormat::kAlphaBits)) << PixelFormat::kAlphaShift) - + ((alpha >> rightShift) << PixelFormat::kAlphaShift) - (((int)(idst & PixelFormat::kAlphaMask) * alpha) >> 8)))); } |