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https://github.com/4jcraft/4jcraft.git
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bc6013ab70
Migrates 59 files from WinAPI CRITICAL_SECTION to portable C++ std::mutex/std::lock_guard/std::unique_lock. Removes Linux CRITICAL_SECTION shims from winapi_stubs.h.
88 lines
3.2 KiB
C++
88 lines
3.2 KiB
C++
#pragma once
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#include <mutex>
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#include "../Files/FileHeader.h"
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class Compression {
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public:
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// Enum maps directly some external tools
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enum ECompressionTypes {
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eCompressionType_None = 0,
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eCompressionType_RLE = 1,
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eCompressionType_LZXRLE = 2,
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eCompressionType_ZLIBRLE = 3,
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eCompressionType_PS3ZLIB = 4
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};
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private:
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// 4J added so we can have separate contexts and rleBuf for different
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// threads
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class ThreadStorage {
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public:
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Compression* compression;
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ThreadStorage();
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~ThreadStorage();
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};
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static thread_local ThreadStorage* m_tlsCompression;
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static ThreadStorage* m_tlsCompressionDefault;
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public:
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// Each new thread that needs to use Compression will need to call one of
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// the following 2 functions, to either create its own local storage, or
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// share the default storage already allocated by the main thread
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static void CreateNewThreadStorage();
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static void UseDefaultThreadStorage();
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static void ReleaseThreadStorage();
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static Compression* getCompression();
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public:
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int32_t Compress(void* pDestination, unsigned int* pDestSize, void* pSource,
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unsigned int SrcSize);
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int32_t Decompress(void* pDestination, unsigned int* pDestSize,
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void* pSource, unsigned int SrcSize);
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int32_t CompressLZXRLE(void* pDestination, unsigned int* pDestSize,
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void* pSource, unsigned int SrcSize);
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int32_t DecompressLZXRLE(void* pDestination, unsigned int* pDestSize,
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void* pSource, unsigned int SrcSize);
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int32_t CompressRLE(void* pDestination, unsigned int* pDestSize,
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void* pSource, unsigned int SrcSize);
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int32_t DecompressRLE(void* pDestination, unsigned int* pDestSize,
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void* pSource, unsigned int SrcSize);
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static void VitaVirtualDecompress(void* pDestination,
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unsigned int* pDestSize, void* pSource,
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unsigned int SrcSize);
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void SetDecompressionType(ECompressionTypes type) {
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m_decompressType = type;
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} // for loading a save from a different platform (Sony cloud storage cross
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// play)
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ECompressionTypes GetDecompressionType() { return m_decompressType; }
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void SetDecompressionType(ESavePlatform platform);
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Compression();
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~Compression();
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private:
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int32_t DecompressWithType(void* pDestination, unsigned int* pDestSize,
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void* pSource, unsigned int SrcSize);
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XMEMCOMPRESSION_CONTEXT compressionContext;
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XMEMDECOMPRESSION_CONTEXT decompressionContext;
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std::mutex rleCompressLock;
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std::mutex rleDecompressLock;
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unsigned char rleCompressBuf[1024 * 100];
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static const unsigned int staticRleSize = 1024 * 200;
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unsigned char rleDecompressBuf[staticRleSize];
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ECompressionTypes m_decompressType;
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ECompressionTypes m_localDecompressType;
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};
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// extern Compression gCompression;
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#if defined(_WIN64) || defined(__linux__)
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#define APPROPRIATE_COMPRESSION_TYPE Compression::eCompressionType_ZLIBRLE
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#else
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#define APPROPRIATE_COMPRESSION_TYPE Compression::eCompressionType_LZXRLE
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#endif
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