memory.h
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* Additional copyright for this file:
* Copyright (C) 1994-1998 Revolution Software Ltd.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef SWORD2_MEMORY_H
#define SWORD2_MEMORY_H
enum {
MAX_MEMORY_BLOCKS = 999
};
namespace Sword2 {
struct MemBlock {
int16 id;
int16 uid;
byte *ptr;
uint32 size;
};
class MemoryManager {
private:
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();
~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