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engines/sludge/timing.h

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+/* 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/>.
+ *
+ */
+#ifndef SLUDGE_TIMING_H
+#define SLUDGE_TIMING_H
+
+namespace Sludge {
+
+class Timer {
+public:
+	Timer();
+
+	void setDesiredFPS(int t) { _desiredFPS = t; }
+	void reset(void);
+	void init(void);
+	void initSpecial(int t);
+	void waitFrame(void);
+
+	int getLastFps() const { return _lastFPS; }
+
+private:
+	int _desiredFPS; // desired frames per second
+	uint32 _startTime, _endTime;
+	uint32 _desiredFrameTime;
+	uint32 _addNextTime;
+
+	// FPS stats
+	void updateFpsStats();
+	int _lastFPS;
+	int _thisFPS;
+	uint32 _lastSeconds;
+};
+
+} // End of namespace Sludge
+
+#endif