1 /* ScummVM - Graphic Adventure Engine 2 * 3 * ScummVM is the legal property of its developers, whose names 4 * are too numerous to list here. Please refer to the COPYRIGHT 5 * file distributed with this source distribution. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 */ 22 #ifndef SLUDGE_TIMING_H 23 #define SLUDGE_TIMING_H 24 25 namespace Sludge { 26 27 class Timer { 28 public: 29 Timer(); 30 setDesiredFPS(int t)31 void setDesiredFPS(int t) { _desiredFPS = t; } 32 void reset(void); 33 void init(void); 34 void initSpecial(int t); 35 void waitFrame(void); 36 getLastFps()37 int getLastFps() const { return _lastFPS; } 38 39 private: 40 int _desiredFPS; // desired frames per second 41 uint32 _startTime, _endTime; 42 uint32 _desiredFrameTime; 43 uint32 _addNextTime; 44 45 // FPS stats 46 void updateFpsStats(); 47 int _lastFPS; 48 int _thisFPS; 49 uint32 _lastSeconds; 50 }; 51 52 } // End of namespace Sludge 53 54 #endif 55