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/* Copyright (C) 1994-1998 Revolution Software Ltd.
* Copyright (C) 2003-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef SWORD2_RESMAN_H
#define SWORD2_RESMAN_H
namespace Common {
class File;
}
#ifdef PALMOS_MODE
#define MAX_MEM_CACHE (4 * 1024 * 1024) // 4 seems to be enough, 8 = out of memory
#else
#define MAX_MEM_CACHE (8 * 1024 * 1024) // we keep up to 8 megs of resource data files in memory
#endif
#define MAX_res_files 20
namespace Sword2 {
class Sword2Engine;
struct Resource {
byte *ptr;
uint32 size;
uint32 refCount;
Resource *next, *prev;
};
struct ResourceFile {
char fileName[20];
int32 numEntries;
uint32 *entryTab;
uint8 cd;
};
class ResourceManager {
private:
Common::File *openCluFile(uint16 fileNum);
void readCluIndex(uint16 fileNum, Common::File *file = NULL);
void removeFromCacheList(Resource *res);
void addToCacheList(Resource *res);
void checkMemUsage();
Sword2Engine *_vm;
int _curCD;
uint32 _totalResFiles;
uint32 _totalClusters;
// Gode generated res-id to res number/rel number conversion table
uint16 *_resConvTable;
ResourceFile _resFiles[MAX_res_files];
Resource *_resList;
Resource *_cacheStart, *_cacheEnd;
uint32 _usedMem; // amount of used memory in bytes
public:
ResourceManager(Sword2Engine *vm); // read in the config file
~ResourceManager();
bool init();
uint32 getNumResFiles() { return _totalResFiles; }
uint32 getNumClusters() { return _totalClusters; }
ResourceFile *getResFiles() { return _resFiles; }
Resource *getResList() { return _resList; }
byte *openResource(uint32 res, bool dump = false);
void closeResource(uint32 res);
bool checkValid(uint32 res);
uint32 fetchLen(uint32 res);
uint8 fetchType(uint32 res) {
byte *ptr = openResource(res);
uint8 type = ptr[0];
closeResource(res);
return type;
}
uint8 fetchType(byte *ptr) {
return ptr[0];
}
byte *fetchName(uint32 res, byte *buf = NULL) {
static byte tempbuf[NAME_LEN];
if (!buf)
buf = tempbuf;
byte *ptr = openResource(res);
memcpy(buf, ptr + 10, NAME_LEN);
closeResource(res);
return buf;
}
byte *fetchName(byte *ptr) {
return ptr + 10;
}
// Prompts the user for the specified CD.
void askForCD(int cd);
void setCD(int cd) {
if (cd)
_curCD = cd;
}
int getCD() {
return _curCD;
}
void remove(int res);
void removeAll();
// ----console commands
void killAll(bool wantInfo);
void killAllObjects(bool wantInfo);
};
} // End of namespace Sword2
#endif
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