[Mesa-dev] [PATCH 1/2] radv/ac: round cube array coordinate before fixup.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This fixes:
dEQP-VK.glsl.texture_functions.texture.samplercubearray*

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/amd/common/ac_nir_to_llvm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 6985371..adba539 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -4237,6 +4237,8 @@ static void visit_tex(struct nir_to_llvm_context *ctx, nir_tex_instr *instr)
 	}
 
 	if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE && coord) {
+		if (instr->is_array && instr->op != nir_texop_lod)
+			coords[3] = apply_round_slice(ctx, coords[3]);
 		for (chan = 0; chan < instr->coord_components; chan++)
 			coords[chan] = to_float(ctx, coords[chan]);
 		if (instr->coord_components == 3)
@@ -4264,7 +4266,9 @@ static void visit_tex(struct nir_to_llvm_context *ctx, nir_tex_instr *instr)
 		}
 		if (instr->coord_components > 2) {
 			/* This seems like a bit of a hack - but it passes Vulkan CTS with it */
-			if (instr->sampler_dim != GLSL_SAMPLER_DIM_3D && instr->op != nir_texop_txf) {
+			if (instr->sampler_dim != GLSL_SAMPLER_DIM_3D &&
+			    instr->sampler_dim != GLSL_SAMPLER_DIM_CUBE &&
+			    instr->op != nir_texop_txf) {
 				coords[2] = apply_round_slice(ctx, coords[2]);
 			}
 			address[count++] = coords[2];
-- 
2.7.4