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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef GLSLMEMORYPOOL_H
#define GLSLMEMORYPOOL_H
#include "glsl.h"
#include <new>
namespace GLSL {
class MemoryPool;
class RecursiveMemoryPool;
class GLSL_EXPORT MemoryPool
{
MemoryPool(const MemoryPool &other);
void operator =(const MemoryPool &other);
public:
MemoryPool();
~MemoryPool();
void reset();
inline void *allocate(size_t size)
{
size = (size + 7) & ~7;
if (_ptr && (_ptr + size < _end)) {
void *addr = _ptr;
_ptr += size;
return addr;
}
return allocate_helper(size);
}
private:
void *allocate_helper(size_t size);
private:
char **_blocks;
int _allocatedBlocks;
int _blockCount;
char *_ptr;
char *_end;
enum
{
BLOCK_SIZE = 8 * 1024,
DEFAULT_BLOCK_COUNT = 8
};
friend class RecursiveMemoryPool;
};
class GLSL_EXPORT RecursiveMemoryPool
{
MemoryPool *_pool;
int _blockCount;
char *_ptr;
char *_end;
public:
RecursiveMemoryPool(MemoryPool *pool);
~RecursiveMemoryPool();
};
class GLSL_EXPORT Managed
{
Managed(const Managed &other);
void operator = (const Managed &other);
public:
Managed();
virtual ~Managed();
void *operator new(size_t size, MemoryPool *pool);
void operator delete(void *);
void operator delete(void *, MemoryPool *);
};
} // namespace GLSL
#endif // GLSLMEMORYPOOL_H
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