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//$Id:$ -*- C++ -*-
/*
* DirectReader.h - Reader from independent files
*
* Copyright (c) 2001-2016 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 __DIRECT_READER_H__
#define __DIRECT_READER_H__
#include "BaseReader.h"
#include <string.h>
#define MAX_FILE_NAME_LENGTH 256
class DirectReader : public BaseReader
{
public:
DirectReader( const char *path=NULL, const unsigned char *key_table=NULL );
~DirectReader();
int open( const char *name=NULL );
int close();
const char *getArchiveName() const;
int getNumFiles();
void registerCompressionType( const char *ext, int type );
struct FileInfo getFileByIndex( unsigned int index );
size_t getFileLength( const char *file_name );
size_t getFile( const char *file_name, unsigned char *buffer, int *location=NULL );
static void convertFromSJISToEUC( char *buf );
static void convertFromSJISToUTF8( char *dst_buf, const char *src_buf );
static void convertFromUTF8ToSJIS( char *dst_buf, const char *src_buf );
protected:
char *file_full_path;
char *file_sub_path;
size_t file_path_len;
char *capital_name;
char *capital_name_tmp;
char *archive_path;
unsigned char key_table[256];
bool key_table_flag;
int getbit_mask;
size_t getbit_len, getbit_count;
unsigned char *read_buf;
unsigned char *decomp_buffer;
size_t decomp_buffer_len;
struct RegisteredCompressionType{
RegisteredCompressionType *next;
char *ext;
int type;
RegisteredCompressionType(){
ext = NULL;
next = NULL;
};
RegisteredCompressionType( const char *ext, int type ){
this->ext = new char[ strlen(ext)+1 ];
for ( unsigned int i=0 ; i<strlen(ext)+1 ; i++ ){
this->ext[i] = ext[i];
if ( this->ext[i] >= 'a' && this->ext[i] <= 'z' )
this->ext[i] += 'A' - 'a';
}
this->type = type;
this->next = NULL;
};
~RegisteredCompressionType(){
if (ext) delete[] ext;
};
} root_registered_compression_type, *last_registered_compression_type;
FILE *fopen(const char *path, const char *mode);
unsigned char readChar( FILE *fp );
unsigned short readShort( FILE *fp );
unsigned long readLong( FILE *fp );
void writeChar( FILE *fp, unsigned char ch );
void writeShort( FILE *fp, unsigned short ch );
void writeLong( FILE *fp, unsigned long ch );
static unsigned short swapShort( unsigned short ch );
static unsigned long swapLong( unsigned long ch );
size_t decodeNBZ( FILE *fp, size_t offset, unsigned char *buf );
size_t encodeNBZ( FILE *fp, size_t length, unsigned char *buf );
int getbit( FILE *fp, int n );
size_t decodeSPB( FILE *fp, size_t offset, unsigned char *buf );
size_t decodeLZSS( struct ArchiveInfo *ai, int no, unsigned char *buf );
int getRegisteredCompressionType( const char *file_name );
size_t getDecompressedFileLength( int type, FILE *fp, size_t offset );
private:
FILE *getFileHandle( const char *file_name, int &compression_type, size_t *length );
};
#endif // __DIRECT_READER_H__
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