[Mesa-dev] [PATCH 3/3] radv: Use the correct channel for alpha in resolve srgb conversion.

[Bas Nieuwenhuizen]

The argument here is a bitmask, so the old code selected .xy, which
got silently truncated to .x when constructing the vec4 from components,
instead of using .w.

Fixes: 588185eb6b7 "radv/meta: add srgb conversion to end of resolve shader."
---
 src/amd/vulkan/radv_meta_resolve_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_meta_resolve_cs.c b/src/amd/vulkan/radv_meta_resolve_cs.c
index f13e79ef0ce..d20d04231ed 100644
--- a/src/amd/vulkan/radv_meta_resolve_cs.c
+++ b/src/amd/vulkan/radv_meta_resolve_cs.c
@@ -66,7 +66,7 @@ static nir_ssa_def *radv_meta_build_resolve_srgb_conversion(nir_builder *b,
 	nir_ssa_def *comp[4];
 	for (i = 0; i < 3; i++)
 		comp[i] = nir_bcsel(b, cmp[i], ltvals[i], gtvals[i]);
-	comp[3] = nir_channels(b, input, 3);
+	comp[3] = nir_channels(b, input, 1 << 3);
 	return nir_vec(b, comp, 4);
 }
 
-- 
2.13.4