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authorCarl Worth <[email protected]>2013-01-22 13:29:01 -0800
committerCarl Worth <[email protected]>2013-01-23 17:41:09 -0800
commit8059c2ea9011110df3632e28a4311de9373b9b4e (patch)
tree94a8133e65abd94394e402cdeed7d48d7568b5ae /src/mesa/main/macros.h
parent33599433c75c0ab433615d08ed7e4002146ba462 (diff)
i965: Use swizzles to force R, G, and B to 0.0 for ALPHA textures.
Similar to the previous commit, we may be using a texture with actual RGBA storage for the GL_ALPHA format, so force the color values to 0.0. This commit fixes the following piglit (sub) tests: EXT_texture_snorm/fbo-blending-formats GL_ALPHA16_SNORM GL_ALPHA8_SNORM GL_ALPHA_SNORM Note: Haswell bypasses this swizzle code, so may require an independent fix for this bug. Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/main/macros.h')
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