98 lines
2.2 KiB
C++
98 lines
2.2 KiB
C++
#pragma once
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#include "compression.h"
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#include "InputOutputStream.h"
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using namespace std;
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class FileEntry;
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class ConsoleSaveFile;
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class RegionFile
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{
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// 4J Stu TEMP FOR TESTING
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private:
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FileEntry *fileEntry;
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private:
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static const int VERSION_GZIP = 1;
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static const int VERSION_DEFLATE = 2;
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static const int VERSION_XBOX = 3;
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static const int SECTOR_BYTES = 4096;
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static const int SECTOR_INTS = SECTOR_BYTES / 4;
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static const int CHUNK_HEADER_SIZE = 8;
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static byteArray emptySector;
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File *fileName;
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//HANDLE file;
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ConsoleSaveFile *m_saveFile;
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int *offsets;
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int *chunkTimestamps;
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vector<bool> *sectorFree;
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int sizeDelta;
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int64_t _lastModified;
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bool m_bIsEmpty; // 4J added
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public:
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RegionFile(ConsoleSaveFile *saveFile, File *path);
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~RegionFile();
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/* the modification date of the region file when it was first opened */
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int64_t lastModified();
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/* gets how much the region file has grown since it was last checked */
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int getSizeDelta();
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/*
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* gets an (uncompressed) stream representing the chunk data returns null if
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* the chunk is not found or an error occurs
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*/
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DataInputStream *getChunkDataInputStream(int x, int z);
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DataOutputStream *getChunkDataOutputStream(int x, int z);
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class ChunkBuffer : public ByteArrayOutputStream
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{
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private:
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RegionFile *rf;
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int x, z;
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public:
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ChunkBuffer( RegionFile *rf, int x, int z ) : ByteArrayOutputStream(8096)
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{
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this->rf = rf;
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this->x = x;
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this->z = z;
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}
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void close()
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{
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rf->write(x,z,buf.data,count);
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}
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};
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/* write a chunk at (x,z) with length bytes of data to disk */
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protected:
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void write(int x, int z, byte *data, int length);
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/* write a chunk data to the region file at specified sector number */
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private:
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void write(int sectorNumber, byte *data, int length, unsigned int compLength);
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void zero(int sectorNumber, int length); // 4J added
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/* is this an invalid chunk coordinate? */
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bool outOfBounds(int x, int z);
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int getOffset(int x, int z);
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public:
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bool hasChunk(int x, int z);
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private:
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void insertInitialSectors(); // 4J added
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void setOffset(int x, int z, int offset);
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void setTimestamp(int x, int z, int value);
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public:
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void writeAllOffsets();
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void close();
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};
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