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Minecraft.World/compression.h

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+#pragma once
+#include "FileHeader.h"
+
+#ifdef _XBOX_ONE
+#include "..\Minecraft.Client\Durango\DurangoExtras\xcompress.h"
+#endif
+
+class Compression
+{
+public:
+	// Enum maps directly some external tools
+	enum ECompressionTypes
+	{
+		eCompressionType_None = 0,
+		eCompressionType_RLE = 1,
+		eCompressionType_LZXRLE = 2,
+		eCompressionType_ZLIBRLE = 3,
+		eCompressionType_PS3ZLIB = 4
+	};
+
+private:
+	// 4J added so we can have separate contexts and rleBuf for different threads
+	class ThreadStorage
+	{
+	public:
+		Compression *compression;
+		ThreadStorage();
+		~ThreadStorage();
+	};
+	static DWORD tlsIdx;
+	static ThreadStorage *tlsDefault;
+public:
+	// Each new thread that needs to use Compression will need to call one of the following 2 functions, to either create its own
+	// local storage, or share the default storage already allocated by the main thread
+	static void CreateNewThreadStorage();
+	static void UseDefaultThreadStorage();
+	static void ReleaseThreadStorage();
+
+	static Compression *getCompression();
+
+public:
+	HRESULT Compress(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+	HRESULT Decompress(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+	HRESULT CompressLZXRLE(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+	HRESULT DecompressLZXRLE(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+	HRESULT CompressRLE(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+	HRESULT DecompressRLE(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+#ifndef _XBOX
+	static VOID VitaVirtualDecompress(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+#endif
+
+	void SetDecompressionType(ECompressionTypes type) { m_decompressType = type; }  // for loading a save from a different platform (Sony cloud storage cross play)
+	ECompressionTypes GetDecompressionType() { return m_decompressType; }  
+	void SetDecompressionType(ESavePlatform platform);
+
+	Compression();
+	~Compression();
+private:
+
+	HRESULT DecompressWithType(void *pDestination, unsigned int *pDestSize, void *pSource, unsigned int SrcSize);
+
+#if defined __ORBIS__ || defined __PS3__
+#else
+	XMEMCOMPRESSION_CONTEXT compressionContext;
+	XMEMDECOMPRESSION_CONTEXT decompressionContext;
+#endif
+	CRITICAL_SECTION rleCompressLock;
+	CRITICAL_SECTION rleDecompressLock;
+
+	unsigned char rleCompressBuf[1024*100];
+	static const unsigned int staticRleSize = 1024*200;
+	unsigned char rleDecompressBuf[staticRleSize];
+	ECompressionTypes m_decompressType;
+	ECompressionTypes m_localDecompressType;
+
+};
+
+//extern Compression gCompression;
+
+#if defined __ORBIS__ || defined _DURANGO || defined _WIN64 || defined __PSVITA__
+#define APPROPRIATE_COMPRESSION_TYPE Compression::eCompressionType_ZLIBRLE
+#elif defined __PS3__
+#define APPROPRIATE_COMPRESSION_TYPE Compression::eCompressionType_PS3ZLIB
+#else
+#define APPROPRIATE_COMPRESSION_TYPE Compression::eCompressionType_LZXRLE
+#endif