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-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_blend_aos.c2
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);
}