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https://github.com/libretro/scummvm.git
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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2003-2006 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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* 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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* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef MEMMAN_H
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#define MEMMAN_H
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#include "common/scummsys.h"
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namespace Sword1 {
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struct MemHandle {
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void *data;
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uint32 size;
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uint32 refCount;
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uint16 cond;
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MemHandle *next, *prev;
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};
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// mem conditions:
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#define MEM_FREED 0
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#define MEM_CAN_FREE 1
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#define MEM_DONT_FREE 2
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#ifdef PALMOS_MODE
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#define MAX_ALLOC (3*1024*1024) // max amount of mem we want to alloc().
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#else
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#define MAX_ALLOC (6*1024*1024) // max amount of mem we want to alloc().
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#endif
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class MemMan {
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public:
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MemMan(void);
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~MemMan(void);
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void alloc(MemHandle *bsMem, uint32 pSize, uint16 pCond = MEM_DONT_FREE);
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void setCondition(MemHandle *bsMem, uint16 pCond);
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void freeNow(MemHandle *bsMem);
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void initHandle(MemHandle *bsMem);
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void flush(void);
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private:
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void addToFreeList(MemHandle *bsMem);
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void removeFromFreeList(MemHandle *bsMem);
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void checkMemoryUsage(void);
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uint32 _alloced; //currently allocated memory
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MemHandle *_memListFree;
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MemHandle *_memListFreeEnd;
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};
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} // End of namespace Sword1
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#endif //MEMMAN_H
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