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Platforms can return a platform hash and a blob of text data to go with that hash These are stored one / line in ShaderSymbols.info in lieu of full PDB info Useful when full shader PDBs are impractically large, info-only is much smaller #rb dan.elksnitis, john.huelin, serge.bernier #tests test on cooking Lyra, various platforms, noddc and ddc [CL 26496825 by tom holmes in ue5-main branch]
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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// HEADER_UNIT_SKIP - Bad includes (ZipArchiveWriter.h)
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#if WITH_ENGINE
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#include "CoreTypes.h"
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#include "Containers/ContainersFwd.h"
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#include "Containers/Set.h"
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#include "Templates/UniquePtr.h"
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#include "Serialization/MemoryReader.h"
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class FZipArchiveWriter;
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class SHADERCOMPILERCOMMON_API FShaderSymbolExport
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{
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public:
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FShaderSymbolExport() = delete;
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FShaderSymbolExport(FName InShaderFormat);
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~FShaderSymbolExport();
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/** Should be called from IShaderFormat::NotifyShaderCompiled implementation.
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* Template type is the platform specific symbol data structure.
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*/
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template<typename TPlatformShaderSymbolData>
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void NotifyShaderCompiled(const TConstArrayView<uint8>& PlatformSymbolData);
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/** Called at the end of a cook to free resources and finalize artifacts created during the cook. */
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void NotifyShaderCompilersShutdown();
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private:
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void Initialize();
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void WriteSymbolData(const FString& Filename, const FString& DebugInfo, TConstArrayView<uint8> Contents);
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const FName ShaderFormat;
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TUniquePtr<FZipArchiveWriter> ZipWriter;
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TSet<FString> ExportedShaders;
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FString ExportPath;
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FString InfoFilePath;
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uint64 TotalSymbolDataBytes{ 0 };
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uint64 TotalSymbolData{ 0 };
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bool bExportShaderSymbols{ false };
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struct FShaderInfo
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{
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FString Hash;
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FString Data;
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};
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TArray<FShaderInfo> ShaderInfos;
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/**
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* If true, the current process is the first process in a multiprocess group, or is not in a group,
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* and should combine artifacts produced by the other processes. Will also be false if no combination
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* is necessary for given settings.
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*/
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bool bMultiprocessOwner{ false };
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};
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template<typename TPlatformShaderSymbolData>
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inline void FShaderSymbolExport::NotifyShaderCompiled(const TConstArrayView<uint8>& PlatformSymbolData)
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{
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static bool bFirst = true;
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if (bFirst)
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{
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// If we get called, we know we're compiling. Do one time initialization
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// which will create the output directory / open the open file stream.
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Initialize();
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bFirst = false;
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}
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if (bExportShaderSymbols)
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{
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// Deserialize the platform symbol data
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TPlatformShaderSymbolData FullSymbolData;
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FMemoryReaderView Ar(PlatformSymbolData);
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Ar << FullSymbolData;
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for (const auto& SymbolData : FullSymbolData.GetAllSymbolData())
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{
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const FString FileName = SymbolData.GetFilename();
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const FString DebugInfo = SymbolData.GetDebugInfo();
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TConstArrayView<uint8> Contents = SymbolData.GetContents();
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WriteSymbolData(FileName, DebugInfo, Contents);
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}
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}
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}
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#endif // WITH_ENGINE
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