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r600g/llvm: Support for TBO 

Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
This commit is contained in:
Vincent Lejeune 2013-02-14 17:26:30 +01:00
parent c116598f86
commit 0527317e1f
1 changed files with 28 additions and 0 deletions
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28
src/gallium/drivers/r600/r600_llvm.c
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@ -412,6 +412,34 @@ static void llvm_emit_tex(
LLVMValueRef args[6];
unsigned c, sampler_src;
if (emit_data->inst->Texture.Texture == TGSI_TEXTURE_BUFFER) {
switch (emit_data->inst->Instruction.Opcode) {
case TGSI_OPCODE_TXQ: {
LLVMValueRef offset[2] = {
LLVMConstInt(LLVMInt64TypeInContext(bld_base->base.gallivm->context), 0, false),
lp_build_const_int32(bld_base->base.gallivm, 1)
};
LLVMTypeRef const_ptr_type = LLVMPointerType(LLVMArrayType(LLVMVectorType(bld_base->base.elem_type, 4), 1024),
R600_BUFFER_INFO_CONST_BUFFER);
LLVMValueRef const_ptr = LLVMBuildIntToPtr(bld_base->base.gallivm->builder, lp_build_const_int32(bld_base->base.gallivm, 0), const_ptr_type, "");
LLVMValueRef ptr = LLVMBuildGEP(bld_base->base.gallivm->builder, const_ptr, offset, 2, "");
LLVMValueRef cvecval = LLVMBuildLoad(bld_base->base.gallivm->builder, ptr, "");
emit_data->output[0] = cvecval;
return;
}
case TGSI_OPCODE_TXF: {
args[0] = LLVMBuildExtractElement(gallivm->builder, emit_data->args[0], lp_build_const_int32(gallivm, 0), "");
args[1] = lp_build_const_int32(gallivm, R600_MAX_CONST_BUFFERS);
emit_data->output[0] = build_intrinsic(gallivm->builder,
"llvm.R600.load.texbuf",
emit_data->dst_type, args, 2, LLVMReadNoneAttribute);
}
return;
default:
break;
}
}
assert(emit_data->arg_count + 2 <= Elements(args));
for (c = 0; c < emit_data->arg_count; ++c)