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SPIR-V: Smear one-component scalars

This commit is contained in:
Dr. Chat 2016-06-28 11:43:03 -05:00
parent 14a6fd838a
commit abdf071c7d
1 changed files with 15 additions and 12 deletions
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27
src/xenia/gpu/spirv_shader_translator.cc
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@ -467,12 +467,10 @@ std::vector<uint8_t> SpirvShaderTranslator::CompleteTranslation() {
std::vector<Id>({b.makeUintConstant(2)}));
auto alpha_test = b.createLoad(alpha_test_ptr);
auto alpha_test_enabled = b.createCompositeExtract(
alpha_test, float_type_, std::vector<uint32_t>{0});
auto alpha_test_func = b.createCompositeExtract(alpha_test, float_type_,
std::vector<uint32_t>{1});
auto alpha_test_ref = b.createCompositeExtract(alpha_test, float_type_,
std::vector<uint32_t>{2});
auto alpha_test_enabled =
b.createCompositeExtract(alpha_test, float_type_, 0);
auto alpha_test_func = b.createCompositeExtract(alpha_test, float_type_, 1);
auto alpha_test_ref = b.createCompositeExtract(alpha_test, float_type_, 2);
alpha_test_func =
b.createUnaryOp(spv::Op::OpConvertFToU, uint_type_, alpha_test_func);
@ -2455,13 +2453,18 @@ void SpirvShaderTranslator::StoreToResult(Id source_value_id,
auto n_el = b.getNumComponents(source_value_id);
auto n_dst = b.getNumTypeComponents(storage_type);
std::vector<uint32_t> channels;
for (int i = 0; i < n_dst; i++) {
channels.push_back(i % n_el);
}
if (n_el != 1) {
std::vector<uint32_t> channels;
for (int i = 0; i < n_dst; i++) {
channels.push_back(i % n_el);
}
source_value_id = b.createRvalueSwizzle(spv::NoPrecision, storage_type,
source_value_id, channels);
source_value_id = b.createRvalueSwizzle(spv::NoPrecision, storage_type,
source_value_id, channels);
} else {
source_value_id =
b.smearScalar(spv::NoPrecision, source_value_id, storage_type);
}
}
// swizzle