diff options
| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2014-03-19 17:12:38 +0000 |
|---|---|---|
| committer | Roland Scheidegger <sroland@vmware.com> | 2014-03-20 16:50:40 +0100 |
| commit | f4b3430a36ea88707f59ce147a140a1a559378c5 (patch) | |
| tree | 69252ed1166046c8c36da8b0fc3aa810ab4e7870 /src/gallium/drivers/llvmpipe | |
| parent | 8044fd6769d51ae35402cd62272ea8582b625445 (diff) | |
llvmpipe: Tighten check for alpha-only formats
The AoS version of ld_build_blend_factor was assuming that if the first
channel was alpha, there were no rgb components.
Fixes glean/blendFunc on System z. No piglit regressions on x86_64.
The shortcut is still used in tests like spec/ARB_framebuffer_object/
fbo-alpha.
Signed-off-by: Richard Sandiford <rsandifo@linux.vnet.ibm.com>
Diffstat (limited to 'src/gallium/drivers/llvmpipe')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_blend_aos.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_blend_aos.c b/src/gallium/drivers/llvmpipe/lp_bld_blend_aos.c index 377eaa5a6e0..564e19a1565 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_blend_aos.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_blend_aos.c @@ -255,7 +255,7 @@ lp_build_blend_factor(struct lp_build_blend_aos_context *bld, LLVMValueRef rgb_factor_, alpha_factor_; enum lp_build_blend_swizzle rgb_swizzle; - if (alpha_swizzle == 0) { + if (alpha_swizzle == UTIL_FORMAT_SWIZZLE_X && num_channels == 1) { return lp_build_blend_factor_unswizzled(bld, alpha_factor, TRUE); } |