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amdgpu: Handle 32-bit Unorm formats. (#2974)

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squidbus 2025-05-22 03:16:20 -07:00 committed by GitHub
parent f4eb0b9b9e
commit 3f949d2b6c
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2 changed files with 35 additions and 2 deletions
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10
src/shader_recompiler/ir/reinterpret.h
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@ -46,6 +46,10 @@ inline F32 ApplyReadNumberConversion(IREmitter& ir, const F32& value,
const IR::F32 max = ir.Imm32(float(std::numeric_limits<u16>::max()));
return ir.FPDiv(left, max);
}
case AmdGpu::NumberConversion::Uint32ToUnorm: {
const auto float_val = ir.ConvertUToF(32, 32, ir.BitCast<U32>(value));
return ir.FPDiv(float_val, ir.Imm32(static_cast<float>(std::numeric_limits<u32>::max())));
}
default:
UNREACHABLE();
}
@ -92,6 +96,12 @@ inline F32 ApplyWriteNumberConversion(IREmitter& ir, const F32& value,
const IR::U32 raw = ir.ConvertFToS(32, ir.FPDiv(left, ir.Imm32(2.f)));
return ir.BitCast<F32>(raw);
}
case AmdGpu::NumberConversion::Uint32ToUnorm: {
const auto clamped = ir.FPClamp(value, ir.Imm32(0.f), ir.Imm32(1.f));
const auto unnormalized =
ir.FPMul(clamped, ir.Imm32(static_cast<float>(std::numeric_limits<u32>::max())));
return ir.BitCast<F32>(U32{ir.ConvertFToU(32, unnormalized)});
}
default:
UNREACHABLE();
}

27
src/video_core/amdgpu/types.h
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@ -197,8 +197,9 @@ enum class NumberConversion : u32 {
UintToUscaled = 1,
SintToSscaled = 2,
UnormToUbnorm = 3,
Sint8ToSnormNz = 5,
Sint16ToSnormNz = 6,
Sint8ToSnormNz = 4,
Sint16ToSnormNz = 5,
Uint32ToUnorm = 6,
};
struct CompMapping {
@ -286,6 +287,17 @@ inline DataFormat RemapDataFormat(const DataFormat format) {
inline NumberFormat RemapNumberFormat(const NumberFormat format, const DataFormat data_format) {
switch (format) {
case NumberFormat::Unorm: {
switch (data_format) {
case DataFormat::Format32:
case DataFormat::Format32_32:
case DataFormat::Format32_32_32:
case DataFormat::Format32_32_32_32:
return NumberFormat::Uint;
default:
return format;
}
}
case NumberFormat::Uscaled:
return NumberFormat::Uint;
case NumberFormat::Sscaled:
@ -341,6 +353,17 @@ inline CompMapping RemapSwizzle(const DataFormat format, const CompMapping swizz
inline NumberConversion MapNumberConversion(const NumberFormat num_fmt, const DataFormat data_fmt) {
switch (num_fmt) {
case NumberFormat::Unorm: {
switch (data_fmt) {
case DataFormat::Format32:
case DataFormat::Format32_32:
case DataFormat::Format32_32_32:
case DataFormat::Format32_32_32_32:
return NumberConversion::Uint32ToUnorm;
default:
return NumberConversion::None;
}
}
case NumberFormat::Uscaled:
return NumberConversion::UintToUscaled;
case NumberFormat::Sscaled: