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DXIL debugger handle all float types for DXOp::Fma, FMad

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This commit is contained in:
Jake Turner
2025-10-28 15:26:36 +00:00
parent d6fcc5b8b5
commit 7e476311d8
1 changed files with 21 additions and 7 deletions
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renderdoc/driver/shaders/dxil/dxil_debug.cpp
+21 -7
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@@ -2941,13 +2941,27 @@ bool ThreadState::ExecuteInstruction(const rdcarray<ThreadState> &workgroup)
RDCASSERT(GetShaderVariable(inst.args[1], opCode, dxOpCode, a));
RDCASSERT(GetShaderVariable(inst.args[2], opCode, dxOpCode, b));
RDCASSERT(GetShaderVariable(inst.args[3], opCode, dxOpCode, c));
RDCASSERTEQUAL(a.type, VarType::Float);
RDCASSERTEQUAL(b.type, VarType::Float);
RDCASSERTEQUAL(c.type, VarType::Float);
RDCASSERTEQUAL(result.type, VarType::Float);
const double fma =
((double)a.value.f32v[0] * (double)b.value.f32v[0]) + (double)c.value.f32v[0];
result.value.f32v[0] = (float)fma;
RDCASSERT(IsFloatingPointType(a.type));
RDCASSERTEQUAL(a.type, b.type);
RDCASSERTEQUAL(a.type, c.type);
RDCASSERTEQUAL(result.type, a.type);
if(result.type == VarType::Double)
{
result.value.f64v[0] = a.value.f64v[0] * b.value.f64v[0] + c.value.f64v[0];
}
else if(result.type == VarType::Float)
{
const double fma = ((double)(a.value.f32v[0]) * (double)(b.value.f32v[0])) +
(double)(c.value.f32v[0]);
result.value.f32v[0] = (float)fma;
}
else if(result.type == VarType::Half)
{
const double fma = ((double)ConvertFromHalf(a.value.u16v[0]) *
(double)ConvertFromHalf(b.value.u16v[0])) +
(double)ConvertFromHalf(c.value.u16v[0]);
result.value.u16v[0] = ConvertToHalf((float)fma);
}
break;
}
case DXOp::Saturate: