/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2005 The OGRE Team
Also see acknowledgements in Readme.html

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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, or go to
http://www.gnu.org/copyleft/lesser.txt.
-----------------------------------------------------------------------------
*/

#ifndef __OgrePagingLandScapeOcclusionQuerySet_H__
#define __OgrePagingLandScapeOcclusionQuerySet_H__

#include "OgrePrerequisites.h"
#include "OgreRenderSystem.h"
#include "OgreRoot.h"

#include "OgrePagingLandScapePoolSet.h"

namespace Ogre 
{

    /** A collection of pre-allocated queries
    */
    class QuerySet : public PoolSet<HardwareOcclusionQuery> 
    {
    protected:

        virtual HardwareOcclusionQuery* allocate ()
        {
            return mRenderSystem->createHardwareOcclusionQuery();
        }
        virtual void deallocate (HardwareOcclusionQuery *p)
        {
            mRenderSystem->destroyHardwareOcclusionQuery (p);
        }

    public:

        void setRenderSystem ()
        {
            mRenderSystem = Root::getSingleton ().getRenderSystem ();
        }

    private:
        RenderSystem *mRenderSystem;

    };
}

#endif//__OgrePagingLandScapeOcclusionQuerySet_H__
