mirror of https://github.com/PCSX2/pcsx2.git
109 lines
3.9 KiB
C
109 lines
3.9 KiB
C
/* isofile.h
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* Copyright (C) 2002-2005 PCSX2 Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* PCSX2 members can be contacted through their website at www.pcsx2.net.
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*/
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#ifndef ISOFILE_H
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#define ISOFILE_H
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#include <sys/types.h> // off64_t
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#include "actualfile.h"
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// #define VERBOSE_FUNCTION_ISOFILE
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#define VERBOSE_DISC_INFO
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struct IsoFile
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{
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// *** Primary Data area
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char name[256];
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int namepos; // Used for detection of components within name
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ACTUALHANDLE handle;
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off64_t sectorpos; // Overall.
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// blocks (char [2352]) provided by users
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// *** Derived Stats from Primary Data
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int openforread; // 1 = Yes, 0 = No
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off64_t filebytesize;
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off64_t filebytepos;
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off64_t filesectorsize;
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off64_t filesectorpos;
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int cdvdtype; // for GetDiskType call
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char toc[2048]; // for GetTOC call
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// From imagetype.h
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int imagetype;
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char imagename[40];
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off64_t imageheader; // Header bytes in every file...
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off64_t blocksize; // sized to add quickly to other off64_t counters
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int blockoffset; // Where to place data in block
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// from isocompress.h
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int compress; // Compression Method used (0 = none, 1...)
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int compresspos; // Start pos of ".Z", ".BZ", etc...
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char tablename[256];
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ACTUALHANDLE tablehandle;
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char compblock[65536]; // Temporary storage of uncompressed sectors.
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off64_t compsector; // First sector of the compblock[]
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off64_t numsectors; // Number of sectors in a compression block
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char *tabledata; // Table holding area
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// From multifile.h
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int multi; // 0 = Single File, 1 = Multiple Files
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int multipos; // Position of Multi # ('0'-'9')
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off64_t multisectorend[10]; // Ending sector of each file...
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off64_t multioffset; // To help with seek calls. Sector offset.
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int multistart; // Starting file number (0-1)
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int multiend; // Ending file number (?-9)
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int multinow; // Current open file number
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// *** (Specific) Compression Data area
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};
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// Read-only section
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// IsoFiles opened for read are treated as random-access files
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extern int IsIsoFile(const char *filename);
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// Returns an image type (positive or zero) or an error (negative)
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extern struct IsoFile *IsoFileOpenForRead(const char *filename);
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// Will seek blocksize and compression method on it's own.
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extern int IsoFileSeek(struct IsoFile *file, off64_t sector);
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// Sector, not byte.
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extern int IsoFileRead(struct IsoFile *file, char *block);
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// Buffers should be at least of "blocksize" size. 2352 bytes, please.
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// Write-only section
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// IsoFiles opened for write are treated as sequential files (still written
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// out a block at a time, though, to be read in later as random-access)
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// No plans are made to make writes random-access at this time.
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extern struct IsoFile *IsoFileOpenForWrite(const char *filename,
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int imagetype,
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int multi,
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int compress);
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extern int IsoFileWrite(struct IsoFile *file, char *block);
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// Uncompressed buffers, please.
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// Will compress with this call (if it's necessary.)
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// Calls used for all Isofiles
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extern struct IsoFile *IsoFileClose(struct IsoFile *file);
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// Use return variable to NULL the file pointer.
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// Ex: lastfile = IsoFileClose(lastfile);
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extern struct IsoFile *IsoFileCloseAndDelete(struct IsoFile *file);
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// For failure to finish writing out a file(set).
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#endif /* ISOFILE_H */
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