| commit | 8059c2ea9011110df3632e28a4311de9373b9b4e | [log] [tgz] |
|---|---|---|
| author | Carl Worth <cworth@cworth.org> | Tue Jan 22 13:29:01 2013 -0800 |
| committer | Carl Worth <cworth@cworth.org> | Wed Jan 23 17:41:09 2013 -0800 |
| tree | 94a8133e65abd94394e402cdeed7d48d7568b5ae | |
| parent | 33599433c75c0ab433615d08ed7e4002146ba462 [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 <eric@anholt.net>