buffermanager.h

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/***************************************************************************
 *   Copyright (C) 2004-2007 by Reality Rift Studios                       *
 *   http://www.realityrift.com  -  mattias@realityrift.com                *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef neo_render_buffermanager_h
#define neo_render_buffermanager_h

#include "../core/platform.h"
#include "../core/util.h"
#include "../core/avltree.h"

#undef free

namespace neo {
namespace render {

class BufferRegion;


class BufferManager : public core::Noncopyable
{
    public:


                                                            BufferManager( unsigned int size = 0 );

    virtual                                                ~BufferManager();


    virtual BufferRegion*                                   alloc( unsigned int size, unsigned int align = 0 );


    virtual void                                            free( BufferRegion* p_region );


    virtual void                                            setSize( unsigned int size );


    unsigned int                                            getSize() const;

    void                                                    checkMemoryIntegrity();

    protected:

    unsigned int                                            _size;

    BufferRegion*                                           _p_root;

    BufferRegion*                                           _p_tail;

    core::AVLTree< BufferRegion*, BufferRegion >            _free;
};

}
}

#endif

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