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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.
*
* $Header$
*/
#ifndef MEMORY_H
#define MEMORY_H
#define MAX_MEMORY_BLOCKS 999
namespace Sword2 {
struct MemBlock {
int16 id;
int16 uid;
byte *ptr;
uint32 size;
};
class MemoryManager {
private:
Sword2Engine *_vm;
MemBlock *_memBlocks;
MemBlock **_memBlockIndex;
int16 _numBlocks;
uint32 _totAlloc;
int16 *_idStack;
int16 _idStackPtr;
int16 findExactPointerInIndex(byte *ptr);
int16 findPointerInIndex(byte *ptr);
int16 findInsertionPointInIndex(byte *ptr);
public:
MemoryManager(Sword2Engine *vm);
~MemoryManager();
int16 getNumBlocks() { return _numBlocks; }
uint32 getTotAlloc() { return _totAlloc; }
MemBlock *getMemBlocks() { return _memBlocks; }
int32 encodePtr(byte *ptr);
byte *decodePtr(int32 n);
byte *memAlloc(uint32 size, int16 uid);
void memFree(byte *ptr);
};
} // End of namespace Sword2
#endif
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