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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003 The ScummVM project
*
* 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.
*
* $Header$
*
*/
#ifndef SAGA_RESFILE_H
#define SAGA_RESFILE_H
/* The 'RSC' resource file format used by SAGA is quite simple.
* At the end of the resource file is an 8 byte structure. The first
* 32 bit value specifies the offset of the resource table, the
* second specifies the number of entries in the resource table.
* Each entry in the resource table is itself 32 bytes, the first
* 32 bit value of which specifies the offset of the resource, the
* second specifies the length of the resource.
*/
#include "common/file.h"
class ResourceFile : public File {
public:
struct Resource {
int32 res_offset;
int32 res_len;
};
private:
long _file_len;
protected:
enum ResourceConstants {
RSC_TABLEINFO_SIZE = 8,
RSC_TABLEENTRY_SIZE = 8
};
const char *_resDirectory;
int32 _resTblOffset;
int32 _resTblCt;
bool _resTblLoaded;
Resource *_resTbl;
public:
ResourceFile();
virtual ~ResourceFile();
bool open(const char *filename, const char *directory);
void close();
inline int16 readSint16LE() {
return readUint16LE();
}
inline int32 readSint32LE() {
return readUint32LE();
}
inline int16 readSint16BE() {
return readUint16BE();
}
inline int32 readSint32BE() {
return readUint32BE();
}
int32 getResourceCt();
int32 getResourceOffset( int32 rn );
int32 getResourceLen( int32 rn );
bool loadResource( int32 rn, byte **res, int32 *res_len );
void freeResource( byte *res );
};
#endif
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