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/* 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.
*
* 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.
*
*
*/
#ifndef TONY_MPAL_MEMORY
#define TONY_MPAL_MEMORY
#include "common/scummsys.h"
#include "common/list.h"
namespace Tony {
namespace MPAL {
typedef void *HANDLE;
typedef HANDLE HGLOBAL;
class MemoryItem {
protected:
byte *_buffer;
uint32 _size;
public:
MemoryItem(uint32 size);
virtual ~MemoryItem();
uint32 Size() { return _size; }
void *DataPointer() { return (void *)_buffer; }
bool IsValid() { return _buffer != NULL; }
// Casting for access to data
operator void *();
};
class MemoryManager {
private:
Common::List<MemoryItem *> _memoryBlocks;
public:
MemoryManager();
virtual ~MemoryManager();
MemoryItem &allocate(uint32 size, uint flags);
HGLOBAL alloc(uint32 size, uint flags);
MemoryItem &getItem(HGLOBAL handle);
MemoryItem &operator[](HGLOBAL handle);
void erase(MemoryItem *item);
void erase(HGLOBAL handle);
uint32 getSize(HANDLE handle);
};
// defines
#define GlobalAlloc(flags, size) _vm->_memoryManager.alloc(size, flags)
#define GlobalAllocate(size) _vm->_memoryManager.allocate(size, 0)
#define GlobalFree(handle) _vm->_memoryManager.erase(handle)
#define GlobalLock(handle) (_vm->_memoryManager.getItem(handle).DataPointer())
#define GlobalUnlock(handle) {}
#define GlobalSize(handle) (_vm->_memoryManager.getItem(handle).Size())
#define GMEM_FIXED 1
#define GMEM_MOVEABLE 2
#define GMEM_ZEROINIT 4
} // end of namespace MPAL
} // end of namespace Tony
#endif
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