diff options
| author | Brian Paul <[email protected]> | 2010-03-18 17:27:39 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2010-03-18 17:27:46 -0600 |
| commit | 8df65e98998b4c104db30cbba8a38be7eb2a9acd (patch) | |
| tree | 752672e8c36baf1c31a64f549aabe40898505e18 /src | |
| parent | c9c0baabdc653f162f9ce51cb17775aed1a707f7 (diff) | |
gallivm: support PIPE_FORMAT_Z24S8_UNORM in depth/stencil code
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_depth.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_depth.c b/src/gallium/auxiliary/gallivm/lp_bld_depth.c index 0841aa8ef86..5b5ae7b5ea8 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_depth.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_depth.c @@ -400,7 +400,7 @@ lp_build_depth_stencil_test(LLVMBuilderRef builder, unsigned z_swizzle, s_swizzle; LLVMValueRef zs_dst, z_dst = NULL; LLVMValueRef stencil_vals = NULL; - LLVMValueRef z_bitmask = NULL, s_bitmask = NULL; + LLVMValueRef z_bitmask = NULL, s_bitmask = NULL, s_shift = NULL; LLVMValueRef z_pass = NULL, s_pass_mask = NULL; LLVMValueRef orig_mask = mask->value; @@ -416,6 +416,11 @@ lp_build_depth_stencil_test(LLVMBuilderRef builder, assert(z_swizzle != UTIL_FORMAT_SWIZZLE_NONE || s_swizzle != UTIL_FORMAT_SWIZZLE_NONE); + if (stencil[0].enabled) { + assert(format_desc->format == PIPE_FORMAT_Z24S8_UNORM || + format_desc->format == PIPE_FORMAT_S8Z24_UNORM); + } + /* Sanity checking */ assert(z_swizzle < 4); assert(format_desc->block.bits == type.width); @@ -473,9 +478,16 @@ lp_build_depth_stencil_test(LLVMBuilderRef builder, z_bitmask = lp_build_const_int_vec(type, mask_left ^ mask_right); } - s_bitmask = LLVMBuildNot(builder, z_bitmask, ""); + /* If PIPE_FORMAT_Z24S8, we'll shift zs >> 24 to position stencil_vals */ + if (format_desc->format == PIPE_FORMAT_Z24S8_UNORM) + s_shift = lp_build_const_int_vec(type, 24); + else + s_shift = lp_build_const_int_vec(type, 0); + + s_bitmask = lp_build_const_int_vec(s_type, 0xff); - stencil_vals = LLVMBuildAnd(builder, zs_dst, s_bitmask, ""); + stencil_vals = LLVMBuildLShr(builder, zs_dst, s_shift, ""); + stencil_vals = LLVMBuildAnd(builder, stencil_vals, s_bitmask, ""); if(padding_left) z_src = LLVMBuildLShr(builder, z_src, @@ -561,6 +573,9 @@ lp_build_depth_stencil_test(LLVMBuilderRef builder, stencil_vals, s_pass_mask, face); } + if (stencil_vals) + stencil_vals = LLVMBuildShl(bld.builder, stencil_vals, s_shift, ""); + /* Finally, merge/store the z/stencil values */ if ((depth->enabled && depth->writemask) || (stencil[0].enabled && stencil[0].writemask)) { |