OcclusionQuery.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */
 
/*
 * Copyright (C) 2006-2010 - Frictional Games
 *
 * This file is part of HPL1 Engine.
 */
 
#ifndef HPL_OCCLUSION_QUERY_H
#define HPL_OCCLUSION_QUERY_H
 
namespace hpl {
 
class iOcclusionQuery {
public:
    virtual ~iOcclusionQuery() {}
 
    virtual void Begin() = 0;
    virtual void End() = 0;
 
    virtual bool FetchResults() = 0;
 
    virtual unsigned int GetSampleCount() = 0;
};
 
} // namespace hpl
 
#endif // HPL_OCCLUSION_QUERY_H