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63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "CookMetadata.h"
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#include "Hash/xxhash.h"
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#include "Memory/MemoryView.h"
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namespace UE::Cook
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{
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const FString& GetCookMetadataFilename()
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{
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static const FString CookMetadataFilename(TEXT("CookMetadata.ucookmeta"));
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return CookMetadataFilename;
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}
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constexpr uint32 COOK_METADATA_HEADER_MAGIC = 'UCMT';
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bool FCookMetadataState::Serialize(FArchive& Ar)
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{
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uint32 MagicHeader = 0;
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if (Ar.IsLoading())
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{
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Ar << MagicHeader;
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if (MagicHeader != COOK_METADATA_HEADER_MAGIC)
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{
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return false; // not a metadata file.
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}
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}
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else
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{
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MagicHeader = COOK_METADATA_HEADER_MAGIC;
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Ar << MagicHeader;
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Version = ECookMetadataStateVersion::LatestVersion;
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}
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Ar << Version;
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if (Ar.IsLoading())
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{
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if (Version != ECookMetadataStateVersion::LatestVersion)
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{
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return false; // invalid version - current we don't support backcompat
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}
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}
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Ar << PluginHierarchy;
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Ar << AssociatedDevelopmentAssetRegistryHash;
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Ar << AssociatedDevelopmentAssetRegistryHashPostWriteback;
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Ar << Platform;
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Ar << BuildVersion;
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Ar << HordeJobId;
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Ar << SizesPresent;
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return true;
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}
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/* static */
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uint64 FCookMetadataState::ComputeHashOfDevelopmentAssetRegistry(FMemoryView InSerializedDevelopmentAssetRegistry)
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{
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return FXxHash64::HashBufferChunked(InSerializedDevelopmentAssetRegistry.GetData(), InSerializedDevelopmentAssetRegistry.GetSize(), 1ULL << 19).Hash;
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}
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} // end namespace
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