first commit

Minecraft.World/ConsoleSaveFileSplit.h

@@ -0,0 +1,143 @@
+#pragma once
+
+#include "FileHeader.h"
+#include "ConsoleSavePath.h"
+#include "ConsoleSaveFile.h"
+
+class ProgressRenderer;
+
+class ConsoleSaveFileSplit : public ConsoleSaveFile
+{
+private:
+	FileHeader header;
+
+	static const int WRITE_BANDWIDTH_BYTESPERSECOND = 1048576;						// Average bytes per second we will cap to when writing region files during the tick() method
+	static const int WRITE_BANDWIDTH_MEASUREMENT_PERIOD_SECONDS = 10;				// Time period over which the bytes per second average is calculated
+	static const int WRITE_TICK_RATE_MS = 500;										// Time between attempts to work out which regions we should write during the tick
+	static const int WRITE_MAX_WRITE_PER_TICK = WRITE_BANDWIDTH_BYTESPERSECOND;		// Maximum number of bytes we can add in a single tick
+
+	class WriteHistory
+	{
+	public:
+		int64_t			writeTime;
+		unsigned int	writeSize;
+	} ;
+
+	class DirtyRegionFile
+	{
+	public:
+		int64_t			lastWritten;
+		unsigned int	fileRef;
+		bool			operator<(const DirtyRegionFile& rhs) { return lastWritten < rhs.lastWritten; }
+	};
+
+	class RegionFileReference
+	{
+	public:
+		RegionFileReference(int index, unsigned int regionIndex, unsigned int length = 0, unsigned char *data = NULL);
+		~RegionFileReference();
+		void			Compress();				// Compress from data to dataCompressed
+		void			Decompress();			// Decompress from dataCompressed -> data
+		unsigned int	GetCompressedSize();	// Gets byte size for what this region will compress to
+		void			ReleaseCompressed();	// Release dataCompressed
+		FileEntry		*fileEntry;
+		unsigned char	*data;				
+		unsigned char   *dataCompressed;
+		unsigned int	dataCompressedSize;
+		int				index;
+		bool			dirty;
+		int64_t			lastWritten;
+	};
+	unordered_map<unsigned int, RegionFileReference *> regionFiles;
+	vector<WriteHistory> writeHistory;
+	int64_t				m_lastTickTime;
+
+	FileEntry *GetRegionFileEntry(unsigned int regionIndex);
+
+	wstring m_fileName;
+	bool m_autosave;
+
+//	HANDLE hHeap;
+	static void *pvHeap;
+	static unsigned int pagesCommitted;
+#ifdef _LARGE_WORLDS
+	static const unsigned int CSF_PAGE_SIZE = 64 * 1024;
+	static const unsigned int MAX_PAGE_COUNT = 32 * 1024; // 2GB virtual allocation
+#else
+	static const unsigned int CSF_PAGE_SIZE = 64 * 1024;
+	static const unsigned int MAX_PAGE_COUNT = 1024;
+#endif
+	LPVOID pvSaveMem;
+
+	CRITICAL_SECTION m_lock;
+
+	void PrepareForWrite( FileEntry *file, DWORD nNumberOfBytesToWrite );
+	void MoveDataBeyond(FileEntry *file, DWORD nNumberOfBytesToWrite);
+
+	bool GetNumericIdentifierFromName(const wstring &fileName, unsigned int *idOut);
+	wstring GetNameFromNumericIdentifier(unsigned int idIn);
+	void processSubfilesForWrite();
+	void processSubfilesAfterWrite();
+public:
+	static int SaveSaveDataCallback(LPVOID lpParam,bool bRes);
+	static int SaveRegionFilesCallback(LPVOID lpParam,bool bRes);
+	
+private:
+	void _init(const wstring &fileName, LPVOID pvSaveData, DWORD fileSize, ESavePlatform plat);
+
+public:
+	ConsoleSaveFileSplit(const wstring &fileName, LPVOID pvSaveData = NULL, DWORD fileSize = 0, bool forceCleanSave = false, ESavePlatform plat = SAVE_FILE_PLATFORM_LOCAL);
+	ConsoleSaveFileSplit(ConsoleSaveFile *sourceSave, bool alreadySmallRegions = true, ProgressListener *progress = NULL);
+	virtual ~ConsoleSaveFileSplit();
+
+	// 4J Stu - Initial implementation is intended to have a similar interface to the standard Xbox file access functions
+
+	virtual FileEntry *createFile( const ConsoleSavePath &fileName );
+	virtual void deleteFile( FileEntry *file );
+
+	virtual void setFilePointer(FileEntry *file,LONG lDistanceToMove,PLONG lpDistanceToMoveHigh,DWORD dwMoveMethod);
+	virtual BOOL writeFile(	FileEntry *file, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite, LPDWORD lpNumberOfBytesWritten );
+	virtual BOOL zeroFile(FileEntry *file, DWORD nNumberOfBytesToWrite, LPDWORD lpNumberOfBytesWritten);
+	virtual BOOL readFile( FileEntry *file, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead );
+	virtual BOOL closeHandle( FileEntry *file );
+
+	virtual void finalizeWrite();
+	virtual void tick();
+
+	virtual bool doesFileExist(ConsoleSavePath file);
+
+	virtual void Flush(bool autosave, bool updateThumbnail = true);
+
+#ifndef _CONTENT_PACKAGE
+	virtual void DebugFlushToFile(void *compressedData = NULL, unsigned int compressedDataSize = 0);
+#endif
+	virtual unsigned int getSizeOnDisk();
+
+	virtual wstring getFilename();
+
+	virtual vector<FileEntry *> *getFilesWithPrefix(const wstring &prefix);
+	virtual vector<FileEntry *> *getRegionFilesByDimension(unsigned int dimensionIndex);
+
+#if defined(__PS3__) || defined(__ORBIS__)
+	virtual wstring getPlayerDataFilenameForLoad(const PlayerUID& pUID);
+	virtual wstring getPlayerDataFilenameForSave(const PlayerUID& pUID);
+	virtual vector<FileEntry *> *getValidPlayerDatFiles();
+#endif //__PS3__
+
+	virtual int getSaveVersion();
+	virtual int getOriginalSaveVersion();
+
+	virtual void LockSaveAccess();
+	virtual void ReleaseSaveAccess();
+
+	virtual ESavePlatform getSavePlatform();
+	virtual bool isSaveEndianDifferent();
+	virtual void setLocalPlatform();
+	virtual void setPlatform(ESavePlatform plat);
+	virtual ByteOrder getSaveEndian();
+	virtual ByteOrder getLocalEndian();
+	virtual void setEndian(ByteOrder endian);
+
+	virtual void ConvertRegionFile(File sourceFile);
+	virtual void ConvertToLocalPlatform();
+};