Jason Felds
87 lines
2.8 KiB
C++
87 lines
2.8 KiB
C++
#ifndef RAGE_FILE_DRIVER_ZIP_H
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#define RAGE_FILE_DRIVER_ZIP_H
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#include "RageFileDriver.h"
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#include "RageThreads.h"
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/** @brief A read-only file driver for ZIPs. */
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class RageFileDriverZip: public RageFileDriver
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{
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public:
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RageFileDriverZip();
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RageFileDriverZip( const RString &sPath );
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bool Load( const RString &sPath );
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bool Load( RageFileBasic *pFile );
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virtual ~RageFileDriverZip();
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RageFileBasic *Open( const RString &sPath, int iMode, int &iErr );
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void FlushDirCache( const RString &sPath );
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void DeleteFileWhenFinished() { m_bFileOwned = true; }
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/* Lower-level access: */
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enum ZipCompressionMethod { STORED = 0, DEFLATED = 8 };
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struct FileInfo
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{
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RString m_sName;
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int m_iOffset;
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int m_iDataOffset;
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ZipCompressionMethod m_iCompressionMethod;
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int m_iCRC32;
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int m_iCompressedSize, m_iUncompressedSize;
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/* If 0, unknown. */
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int m_iFilePermissions;
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};
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const FileInfo *GetFileInfo( const RString &sPath ) const;
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RString GetGlobalComment() const { return m_sComment; }
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private:
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bool m_bFileOwned;
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RageFileBasic *m_pZip;
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vector<FileInfo *> m_pFiles;
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RString m_sPath;
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RString m_sComment;
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/* Open() must be threadsafe. Mutex access to "zip", since we seek
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* around in it when reading files. */
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RageMutex m_Mutex;
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bool ParseZipfile();
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bool ReadEndCentralRecord( int &total_entries_central_dir, int &offset_start_central_directory );
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int ProcessCdirFileHdr( FileInfo &info );
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bool SeekToEndCentralRecord();
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bool ReadLocalFileHeader( FileInfo &info );
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};
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#endif
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/*
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* Copyright (c) 2003-2005 Glenn Maynard
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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