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Diffstat (limited to 'engines/sword1/memman.h')
-rw-r--r-- | engines/sword1/memman.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/engines/sword1/memman.h b/engines/sword1/memman.h new file mode 100644 index 0000000000..e230fac1af --- /dev/null +++ b/engines/sword1/memman.h @@ -0,0 +1,64 @@ +/* ScummVM - Scumm Interpreter + * 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 MEMMAN_H +#define MEMMAN_H + +#include "common/scummsys.h" + +namespace Sword1 { + +struct MemHandle { + void *data; + uint32 size; + uint32 refCount; + uint16 cond; + MemHandle *next, *prev; +}; +// mem conditions: +#define MEM_FREED 0 +#define MEM_CAN_FREE 1 +#define MEM_DONT_FREE 2 + +#define MAX_ALLOC (6*1024*1024) // max amount of mem we want to alloc(). + +class MemMan { +public: + MemMan(void); + ~MemMan(void); + void alloc(MemHandle *bsMem, uint32 pSize, uint16 pCond = MEM_DONT_FREE); + void setCondition(MemHandle *bsMem, uint16 pCond); + void freeNow(MemHandle *bsMem); + void initHandle(MemHandle *bsMem); + void flush(void); +private: + void addToFreeList(MemHandle *bsMem); + void removeFromFreeList(MemHandle *bsMem); + void checkMemoryUsage(void); + uint32 _alloced; //currently allocated memory + MemHandle *_memListFree; + MemHandle *_memListFreeEnd; +}; + +} // End of namespace Sword1 + +#endif //MEMMAN_H |