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shader_decode: SULD.D fix decode SNORM component

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This commit is contained in:
namkazy 2020-04-05 14:46:43 +07:00
parent 69657ff19c
commit 6f2b7087c2
1 changed files with 9 additions and 10 deletions
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19
src/video_core/shader/decode/image.cpp
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@ -350,25 +350,24 @@ u32 ShaderIR::DecodeImage(NodeBlock& bb, u32 pc) {
Node converted_value = [&] {
switch (component_type) {
case ComponentType::SNORM: {
is_signed = true;
// range [-1.0, 1.0]
auto cnv_value =
Operation(OperationCode::FAdd, original_value, Immediate(1.f));
cnv_value = Operation(OperationCode::FMul, std::move(cnv_value),
Immediate(127.f));
is_signed = false;
return SignedOperation(OperationCode::ICastFloat, is_signed,
std::move(cnv_value));
auto cnv_value = Operation(OperationCode::FMul, original_value, Immediate(127.f));
cnv_value = SignedOperation(OperationCode::ICastFloat, is_signed,
std::move(cnv_value));
return BitfieldExtract(std::move(cnv_value), 0, 8);
}
case ComponentType::UNORM: {
is_signed = false;
// range [0.0, 1.0]
auto cnv_value =
Operation(OperationCode::FMul, original_value, Immediate(255.f));
is_signed = false;
return SignedOperation(OperationCode::ICastFloat, is_signed,
std::move(cnv_value));
}
case ComponentType::SINT: // range [-128,128]
return Operation(OperationCode::IAdd, original_value, Immediate(128));
case ComponentType::SINT: // range [-128,127]
is_signed = true;
return original_value;
case ComponentType::UINT: // range [0, 255]
is_signed = false;
return original_value;