diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_depth.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_depth.c b/src/gallium/drivers/llvmpipe/lp_bld_depth.c index 1c899b31cc9..24c997d4624 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_depth.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_depth.c @@ -893,6 +893,7 @@ lp_build_deferred_depth_write(struct gallivm_state *gallivm, struct lp_build_context z_bld; LLVMValueRef z_dst; LLVMBuilderRef builder = gallivm->builder; + LLVMValueRef mask_value; /* XXX: pointlessly redo type logic: */ @@ -904,11 +905,15 @@ lp_build_deferred_depth_write(struct gallivm_state *gallivm, z_dst = LLVMBuildLoad(builder, zs_dst_ptr, "zsbufval"); + mask_value = lp_build_mask_value(mask); + if (z_type.width < z_src_type.width) { + /* Truncate incoming ZS and mask values (e.g., when writing to Z16_UNORM) */ zs_value = LLVMBuildTrunc(builder, zs_value, z_bld.vec_type, ""); + mask_value = LLVMBuildTrunc(builder, mask_value, z_bld.int_vec_type, ""); } - z_dst = lp_build_select(&z_bld, lp_build_mask_value(mask), zs_value, z_dst); + z_dst = lp_build_select(&z_bld, mask_value, zs_value, z_dst); LLVMBuildStore(builder, z_dst, zs_dst_ptr); } |