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D3D12 Shader Debug loop downwards from highest shader model to 6.0

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CheckFeatureSupport will return E_INVALIDARG if HighestShaderModel isn't known by the current runtime.
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Jake Turner committed 2024-10-29 08:35:00 +00:00
1 parent 21db7b5f8a
commit 4a73100da6
1 file changed
+22 -4
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renderdoc/driver/d3d12/d3d12_debug.cpp
+22 -4
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@@ -835,11 +835,29 @@ bool D3D12DebugManager::CreateShaderDebugResources()
RDCERR("Failed to compile DXIL vertex shader for shader debugging");
return false;
}
// CheckFeatureSupport returns E_INVALIDARG if HighestShaderModel isn't known by the current runtime.
int smMajor = 6;
int smMinor = -1;
for(smMinor = D3D_HIGHEST_SHADER_MODEL & 0xF; smMinor >= 0; smMinor--)
{
D3D_SHADER_MODEL smModel = (D3D_SHADER_MODEL)(smMajor << 4 | smMinor);
D3D12_FEATURE_DATA_SHADER_MODEL smMaxSupport = {smModel};
if(m_pDevice->CheckFeatureSupport(D3D12_FEATURE_SHADER_MODEL, &smMaxSupport,
sizeof(smMaxSupport)) == S_OK)
{
smMajor = smMaxSupport.HighestShaderModel >> 4;
smMinor = smMaxSupport.HighestShaderModel & 0xF;
break;
}
}
if(smMinor < 0)
{
RDCERR("Failed to find highest shader model 6.x supported by the current runtime");
return false;
}
ID3DBlob *dxilPsBlob = NULL;
D3D12_FEATURE_DATA_SHADER_MODEL smMaxSupport = {D3D_SHADER_MODEL_6_8};
m_pDevice->CheckFeatureSupport(D3D12_FEATURE_SHADER_MODEL, &smMaxSupport, sizeof(smMaxSupport));
D3D_SHADER_MODEL smModel = smMaxSupport.HighestShaderModel;
rdcstr psSM = StringFormat::Fmt("ps_%d_%d", (smModel >> 4), (smModel & 0xf));
rdcstr psSM = StringFormat::Fmt("ps_%d_%d", smMajor, smMinor);
if(m_pDevice->GetShaderCache()->GetShaderBlob(hlsl.c_str(), "RENDERDOC_DebugSamplePS",
D3DCOMPILE_WARNINGS_ARE_ERRORS, {}, psSM.c_str(),
&dxilPsBlob) != "")