diff options
| author | Vincent Lejeune <[email protected]> | 2013-04-30 15:58:00 +0200 |
|---|---|---|
| committer | Vincent Lejeune <[email protected]> | 2013-05-04 23:38:50 +0200 |
| commit | b42fe195a2578473c433695fe417253e8786c4c6 (patch) | |
| tree | 7e3cae14e61217c4250fed3b464e9737a20d15cf | |
| parent | c4150123aa9c2a71a62fed800d7c4424e9b948f2 (diff) | |
r600g/llvm: Undefines unrequired texture coord values
This is a port of "r600g:mask unused source components for SAMPLE"
patch from Vadim Girlin.
| -rw-r--r-- | src/gallium/drivers/r600/r600_llvm.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/gallium/drivers/r600/r600_llvm.c b/src/gallium/drivers/r600/r600_llvm.c index 83d73405f83..2ff109c4075 100644 --- a/src/gallium/drivers/r600/r600_llvm.c +++ b/src/gallium/drivers/r600/r600_llvm.c @@ -429,9 +429,36 @@ static void llvm_emit_tex( } } + if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_TEX) { + LLVMValueRef Vector[4] = { + LLVMBuildExtractElement(gallivm->builder, emit_data->args[0], + lp_build_const_int32(gallivm, 0), ""), + LLVMBuildExtractElement(gallivm->builder, emit_data->args[0], + lp_build_const_int32(gallivm, 1), ""), + LLVMBuildExtractElement(gallivm->builder, emit_data->args[0], + lp_build_const_int32(gallivm, 2), ""), + LLVMBuildExtractElement(gallivm->builder, emit_data->args[0], + lp_build_const_int32(gallivm, 3), ""), + }; + switch (emit_data->inst->Texture.Texture) { + case TGSI_TEXTURE_2D: + case TGSI_TEXTURE_RECT: + Vector[2] = Vector[3] = LLVMGetUndef(bld_base->base.elem_type); + break; + case TGSI_TEXTURE_1D: + Vector[1] = Vector[2] = Vector[3] = LLVMGetUndef(bld_base->base.elem_type); + break; + default: + break; + } + args[0] = lp_build_gather_values(gallivm, Vector, 4); + } else { + args[0] = emit_data->args[0]; + } + assert(emit_data->arg_count + 2 <= Elements(args)); - for (c = 0; c < emit_data->arg_count; ++c) + for (c = 1; c < emit_data->arg_count; ++c) args[c] = emit_data->args[c]; sampler_src = emit_data->inst->Instruction.NumSrcRegs-1; |