diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_bld_depth.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_depth.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_depth.c b/src/gallium/drivers/llvmpipe/lp_bld_depth.c index e05bbe5011..99a768afd8 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_depth.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_depth.c @@ -258,16 +258,16 @@ lp_build_stencil_op_single(struct lp_build_context *bld, } if (stencil->writemask != stencilMax) { - /* compute res = (res & mask) | (stencilVals & ~mask) */ - LLVMValueRef mask = lp_build_const_int_vec(type, stencil->writemask); - LLVMValueRef cmask = LLVMBuildNot(bld->builder, mask, "notWritemask"); - LLVMValueRef t1 = LLVMBuildAnd(bld->builder, res, mask, "t1"); - LLVMValueRef t2 = LLVMBuildAnd(bld->builder, stencilVals, cmask, "t2"); - res = LLVMBuildOr(bld->builder, t1, t2, "t1_or_t2"); + /* mask &= stencil->writemask */ + LLVMValueRef writemask = lp_build_const_int_vec(type, stencil->writemask); + mask = LLVMBuildAnd(bld->builder, mask, writemask, ""); + /* res = (res & mask) | (stencilVals & ~mask) */ + res = lp_build_select_bitwise(bld, writemask, res, stencilVals); + } + else { + /* res = mask ? res : stencilVals */ + res = lp_build_select(bld, mask, res, stencilVals); } - - /* only the update the vector elements enabled by 'mask' */ - res = lp_build_select(bld, mask, res, stencilVals); return res; } @@ -662,9 +662,9 @@ lp_build_depth_stencil_test(LLVMBuilderRef builder, } /* Mix the old and new Z buffer values. - * z_dst[i] = zselectmask[i] ? z_src[i] : z_dst[i] + * z_dst[i] = (zselectmask[i] & z_src[i]) | (~zselectmask[i] & z_dst[i]) */ - z_dst = lp_build_select(&bld, zselectmask, z_src, z_dst); + z_dst = lp_build_select_bitwise(&bld, zselectmask, z_src, z_dst); } if (stencil[0].enabled) { |