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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();
}