llvmpipe: handle z32s8x24 depth/stencil format

We need to split up the depth and stencil values in this case, and there's
some new logic required to handle float depth and stencil simultaneously.
Also make sure we get the 64bit zs clear values and masks propagated
correctly.

2 files changed, 7 insertions, 1 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_pack.c b/src/gallium/auxiliary/gallivm/lp_bld_pack.c
index 9eb9ab0261f..0a57e39611c 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_pack.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_pack.c
@@ -255,7 +255,8 @@ lp_build_concat_n(struct gallivm_state *gallivm,
 /**
  * Interleave vector elements.
  *
- * Matches the PUNPCKLxx and PUNPCKHxx SSE instructions.
+ * Matches the PUNPCKLxx and PUNPCKHxx SSE instructions
+ * (but not for 256bit AVX vectors).
  */
 LLVMValueRef
 lp_build_interleave2(struct gallivm_state *gallivm,
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index cc29c5c885f..7ac0029051d 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -1545,6 +1545,11 @@ lp_build_sample_soa(struct gallivm_state *gallivm,
          bld.texel_type = lp_type_uint_vec(type.width, type.width * type.length);
       }
    }
+   else if (util_format_has_stencil(bld.format_desc) &&
+       !util_format_has_depth(bld.format_desc)) {
+      /* for stencil only formats, sample stencil (uint) */
+      bld.texel_type = lp_type_int_vec(type.width, type.width * type.length);
+   }
 
    if (!static_texture_state->level_zero_only) {
       derived_sampler_state.min_mip_filter = static_sampler_state->min_mip_filter;