ArchiveLoadCompressedProxy.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "CoreTypes.h"
#include "Misc/Compression.h"
#include "Misc/CompressionFlags.h"
#include "Serialization/Archive.h"
#include "UObject/NameTypes.h"
 
/*----------------------------------------------------------------------------
    FArchiveLoadCompressedProxy.
----------------------------------------------------------------------------*/
 
class FArchiveLoadCompressedProxy : public FArchive
{
public:
    CORE_API FArchiveLoadCompressedProxy(const TArray<uint8>& InCompressedData, FName CompressionFormat, ECompressionFlags InCompressionFlags=COMPRESS_NoFlags);
 
    CORE_API virtual ~FArchiveLoadCompressedProxy();
 
    CORE_API virtual void Serialize( void* Data, int64 Count );
 
    CORE_API virtual void Seek( int64 InPos );
 
    CORE_API virtual int64 Tell();
 
private:
    void DecompressMoreData();
 
    const TArray<uint8>&    CompressedData;
    int32           CurrentIndex;
    uint8*          TmpDataStart;
    uint8*          TmpDataEnd;
    uint8*          TmpData;
    bool            bShouldSerializeFromArray;
    int64           RawBytesSerialized;
    FName           CompressionFormat;
    ECompressionFlags CompressionFlags;
};