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/* -*- C++ -*-
*
* BaseReader.h - Base class of archive reader
*
* Copyright (c) 2001-2012 Ogapee. All rights reserved.
*
* ogapee@aqua.dti2.ne.jp
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __BASE_READER_H__
#define __BASE_READER_H__
#include <stdio.h>
#ifndef SEEK_END
#define SEEK_END 2
#endif
#if defined(LINUX) || defined(MACOSX)
#define DELIMITER '/'
#elif defined(WIN32)
#define DELIMITER '\\'
#elif defined(MACOS9)
#define DELIMITER ':'
#define RELATIVEPATH ":"
#define RELATIVEPATHLENGTH 1
#else
#define DELIMITER '/'
#endif
#ifndef RELATIVEPATH
#define RELATIVEPATH ""
#define RELATIVEPATHLENGTH 0
#endif
struct BaseReader
{
enum {
NO_COMPRESSION = 0,
SPB_COMPRESSION = 1,
LZSS_COMPRESSION = 2,
NBZ_COMPRESSION = 4
};
enum {
ARCHIVE_TYPE_NONE = 0,
ARCHIVE_TYPE_SAR = 1,
ARCHIVE_TYPE_NSA = 2,
ARCHIVE_TYPE_NS2 = 4 //new format since NScr2.91, uses ext ".ns2"
};
struct FileInfo{
char name[256];
int compression_type;
size_t offset;
size_t length;
size_t original_length;
};
struct ArchiveInfo{
ArchiveInfo *next;
FILE *file_handle;
int power_resume_number; // currently only for PSP
char *file_name;
FileInfo *fi_list;
unsigned int num_of_files;
unsigned long base_offset;
ArchiveInfo(){
next = NULL;
file_handle = NULL;
power_resume_number = 0;
file_name = NULL;
fi_list = NULL;
num_of_files = 0;
}
~ArchiveInfo(){
if (file_handle) fclose( file_handle );
if (file_name) delete[] file_name;
if (fi_list) delete[] fi_list;
}
};
virtual ~BaseReader(){};
virtual int open( char *name=NULL ) = 0;
virtual int close() = 0;
virtual const char *getArchiveName() const = 0;
virtual int getNumFiles() = 0;
virtual void registerCompressionType( const char *ext, int type ) = 0;
virtual FileInfo getFileByIndex( unsigned int index ) = 0;
virtual size_t getFileLength( const char *file_name ) = 0;
virtual size_t getFile( const char *file_name, unsigned char *buffer, int *location=NULL ) = 0;
};
#endif // __BASE_READER_H__
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