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70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
/* Copyright (C) 1994-1998 Revolution Software Ltd.
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* Copyright (C) 2003-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*/
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#ifndef MEMORY_H
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#define MEMORY_H
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#define MAX_MEMORY_BLOCKS 999
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namespace Sword2 {
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struct MemBlock {
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int16 id;
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int16 uid;
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byte *ptr;
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uint32 size;
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};
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class MemoryManager {
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private:
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Sword2Engine *_vm;
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MemBlock *_memBlocks;
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MemBlock **_memBlockIndex;
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int16 _numBlocks;
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uint32 _totAlloc;
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int16 *_idStack;
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int16 _idStackPtr;
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int16 findExactPointerInIndex(byte *ptr);
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int16 findPointerInIndex(byte *ptr);
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int16 findInsertionPointInIndex(byte *ptr);
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public:
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MemoryManager(Sword2Engine *vm);
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~MemoryManager();
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int16 getNumBlocks() { return _numBlocks; }
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uint32 getTotAlloc() { return _totAlloc; }
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MemBlock *getMemBlocks() { return _memBlocks; }
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int32 encodePtr(byte *ptr);
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byte *decodePtr(int32 n);
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byte *memAlloc(uint32 size, int16 uid);
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void memFree(byte *ptr);
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};
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} // End of namespace Sword2
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#endif
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