/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield 
 *
 * This library is open source and may be redistributed and/or modified under  
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 * 
 * This library 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 
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSG_GLOBJECTS
#define OSG_GLOBJECTS 1

#include <osg/Export>

namespace osg {

/** Flush all deleted OpenGL objects within the specified availableTime.
  * Note, must be called from a thread which has current the graphics context associated with contextID. */
extern OSG_EXPORT void flushDeletedGLObjects(unsigned int contextID, double currentTime, double& availableTime);

/** Flush all deleted OpenGL objects.
  * Note, must be called from a thread which has current the graphics context associated with contextID. */
extern OSG_EXPORT void flushAllDeletedGLObjects(unsigned int contextID);

/** Do a GL delete all OpenGL objects.
  * Note, must be called from a thread which has current the graphics context associated with contextID. */
extern OSG_EXPORT void deleteAllGLObjects(unsigned int contextID);

/** Discard all deleted OpenGL objects.
  * Note, unlike flushAllDeletedObjectObjects discard does not
  * do any OpenGL calls so can be called from any thread, but as a consequence it
  * also doesn't remove the associated OpenGL resource so discard should only be
  * called when the associated graphics context is being/has been closed. */
extern OSG_EXPORT void discardAllDeletedGLObjects(unsigned int contextID);

/** Discard all OpenGL objects.
  * Note, unlike deletedAllObjectObjects discard does not
  * do any OpenGL calls so can be called from any thread, but as a consequence it
  * also doesn't remove the associated OpenGL resource so discard should only be
  * called when the associated graphics context is being/has been closed. */
extern OSG_EXPORT void discardAllGLObjects(unsigned int contextID);

}

#endif