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The PDB name is either retrieved from the PDB blob part of DXC's output, or is generated using the shader hash that DXC reports even when no PDB is requested. We don't export PDBs because it would result in duplicate data as we use embedded PDBs. #rb christopher.waters, Laura.Hermanns [CL 29723169 by daniele vettorel in ue5-main branch]
109 lines
4.9 KiB
C++
109 lines
4.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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// not every shader format compiler dll will have access to DxcCreateInstance directly - some might be relying on GetProcAddress to find it
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#ifndef DXCUTILS_HAS_DXCCREATEINSTANCE
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#define DXCUTILS_HAS_DXCCREATEINSTANCE 1
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#endif
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#if DXCUTILS_HAS_DXCCREATEINSTANCE
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static void DumpDebugBlobDetail(IDxcBlob* Blob, const TCHAR* BlobName)
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#else
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static void DumpDebugBlobDetail(IDxcBlob* Blob, const TCHAR* BlobName, TRefCountPtr<IDxcContainerReflection> Reflection)
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#endif
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{
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check(BlobName != nullptr);
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if (!FPlatformMisc::IsDebuggerPresent())
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{
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return;
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}
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if (Blob == nullptr)
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{
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FPlatformMisc::LowLevelOutputDebugStringf(TEXT("Blob %s is NULL\n"), BlobName);
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return;
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}
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#if DXCUTILS_HAS_DXCCREATEINSTANCE
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TRefCountPtr<IDxcContainerReflection> Reflection;
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DxcCreateInstance(CLSID_DxcContainerReflection, __uuidof(IDxcContainerReflection), (void**)Reflection.GetInitReference());
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#endif
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if (!Reflection.IsValid())
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{
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FPlatformMisc::LowLevelOutputDebugStringf(TEXT("Can't show debug detail for Blob %s - Failed to create IDxcContainerReflection\n"), BlobName);
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return;
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}
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Reflection->Load(Blob);
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UINT32 PartCount = 0;
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Reflection->GetPartCount(&PartCount);
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FPlatformMisc::LowLevelOutputDebugStringf(TEXT("Blob %s : %d parts, %d total bytes\n"), BlobName, PartCount, Blob->GetBufferSize());
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for (UINT32 PartIndex = 0; PartIndex < PartCount; PartIndex++)
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{
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UINT32 PartKind;
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Reflection->GetPartKind(PartIndex, &PartKind);
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const TCHAR* BlobDescription;
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switch (PartKind)
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{
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case DXC_FOURCC('D', 'X', 'B', 'C'): BlobDescription = TEXT("Container (back-compat)"); break;
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case DXC_FOURCC('R', 'D', 'E', 'F'): BlobDescription = TEXT("ResourceDef"); break;
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case DXC_FOURCC('I', 'S', 'G', '1'): BlobDescription = TEXT("InputSignature"); break;
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case DXC_FOURCC('O', 'S', 'G', '1'): BlobDescription = TEXT("OutputSignature"); break;
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case DXC_FOURCC('P', 'S', 'G', '1'): BlobDescription = TEXT("PatchConstantSignature"); break;
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case DXC_FOURCC('S', 'T', 'A', 'T'): BlobDescription = TEXT("ShaderStatistics"); break;
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case DXC_FOURCC('I', 'L', 'D', 'B'): BlobDescription = TEXT("ShaderDebugInfoDXIL"); break;
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case DXC_FOURCC('I', 'L', 'D', 'N'): BlobDescription = TEXT("ShaderDebugName"); break;
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case DXC_FOURCC('S', 'F', 'I', '0'): BlobDescription = TEXT("FeatureInfo"); break;
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case DXC_FOURCC('U', 'S', 'E', 'R'): BlobDescription = TEXT("UserInfo"); break;
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case DXC_FOURCC('P', 'R', 'I', 'V'): BlobDescription = TEXT("PrivateData"); break;
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case DXC_FOURCC('R', 'T', 'S', '0'): BlobDescription = TEXT("RootSignature"); break;
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case DXC_FOURCC('D', 'X', 'I', 'L'): BlobDescription = TEXT("DXIL"); break;
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case DXC_FOURCC('P', 'S', 'V', '0'): BlobDescription = TEXT("PipelineStateValidation"); break;
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case DXC_FOURCC('R', 'D', 'A', 'T'): BlobDescription = TEXT("RuntimeData"); break;
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case DXC_FOURCC('H', 'A', 'S', 'H'): BlobDescription = TEXT("ShaderHash"); break;
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default: BlobDescription = TEXT("(unknown)"); break;
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}
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TRefCountPtr<IDxcBlob> PartBlob;
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Reflection->GetPartContent(PartIndex, PartBlob.GetInitReference());
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FPlatformMisc::LowLevelOutputDebugStringf(TEXT("\t[%4d] %c%c%c%c (%s) %d bytes\n"), PartIndex, (PartKind & 0xFF), (PartKind >> 8) & 0xFF, (PartKind >> 16) & 0xFF, (PartKind >> 24) & 0xFF, BlobDescription, PartBlob->GetBufferSize());
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}
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FPlatformMisc::LowLevelOutputDebugString(TEXT("\n\n"));
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}
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HRESULT RetrieveDebugNameAndBlob(TRefCountPtr<IDxcResult>& CompileResult, FString& OutDebugBlobName, IDxcBlob** OutDebugBlob)
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{
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HRESULT Result = S_OK;
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if (OutDebugBlob && CompileResult->HasOutput(DXC_OUT_PDB))
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{
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// If the PDB blob exists, we get its name at the same time.
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TRefCountPtr<IDxcBlobUtf16> DebugBlobName;
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Result = CompileResult->GetOutput(DXC_OUT_PDB, __uuidof(IDxcBlob), (void**)OutDebugBlob, DebugBlobName.GetInitReference());
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if (SUCCEEDED(Result))
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{
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OutDebugBlobName = DebugBlobName->GetStringPointer();
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}
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}
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else if (CompileResult->HasOutput(DXC_OUT_SHADER_HASH))
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{
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// If the PDB blob is not available, or if we don't need to return it, we can reconstruct the name
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// the PDB would have used from the Shader Hash, using only 16 bytes if there is more.
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TRefCountPtr<IDxcBlob> HashBlob;
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TRefCountPtr<IDxcBlobUtf16> OutputNameUnused;
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Result = CompileResult->GetOutput(DXC_OUT_SHADER_HASH, __uuidof(IDxcBlob), (void**)HashBlob.GetInitReference(), OutputNameUnused.GetInitReference());
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if (SUCCEEDED(Result))
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{
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size_t BlobSize = HashBlob->GetBufferSize();
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uint32 Offset = BlobSize <= 16 ? 0 : BlobSize - 16;
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OutDebugBlobName = FString(BytesToHex(reinterpret_cast<uint8*>(HashBlob->GetBufferPointer()) + Offset, HashBlob->GetBufferSize() - Offset)) + TEXT(".pdb");
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}
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}
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return Result;
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}
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