fpscounter.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRAPHICS_FPSCOUNTER_H
#define GRAPHICS_FPSCOUNTER_H

#include "src/common/types.h"
#include "src/common/scopedptr.h"

namespace Graphics {

class FPSCounter  {
public:
    FPSCounter(size_t secs);
    ~FPSCounter();

    uint32 getFPS() const;

    void reset();

    void finishedFrame();

private:
    uint32 _lastSampled;     

    size_t _seconds;       
    size_t _currentSecond; 

    bool _hasFullSeconds; 

    uint32 _fps; 

    Common::ScopedArray<uint32> _frames; 

    void calculateFPS(); 
};

} // End of namespace Graphics

#endif // GRAPHICS_FPSCOUNTER_H