Glide Plugin GLES2 port from mupen64plus-ae, but with special FrameSkip code
[mupen64plus-pandora.git] / source / gles2glide64 / src / Glide64 / FrameSkipper.h
diff --git a/source/gles2glide64/src/Glide64/FrameSkipper.h b/source/gles2glide64/src/Glide64/FrameSkipper.h
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *   Copyright (C) 2011 yongzh (freeman.yong@gmail.com)                    *
+ *                                                                         *
+ *   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 2 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, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#ifndef FRAME_SKIPPER_H
+#define FRAME_SKIPPER_H
+
+class FrameSkipper {
+public:
+       enum { AUTO, MANUAL };
+
+       FrameSkipper();
+
+       void setSkips(int type, int max) {
+               skipType = type;
+               maxSkips = max;
+       }
+
+       void setTargetFPS(int fps) {
+               targetFPS = fps;
+       }
+       bool willSkipNext() {
+               return (skipCounter > 0);
+       }
+       
+#if 0
+       bool hasSkipped();
+#else
+       bool hasSkipped() {
+               return (oldSkip > 0);
+       }
+       void newFrame();
+#endif
+       void start();
+       void update();
+
+private:
+       int skipType;
+       int     oldSkip;
+       int maxSkips;
+       int targetFPS;
+       int skipCounter;
+       int     countVI;
+       unsigned int initialTicks;
+       unsigned int virtualCount;
+};
+
+#endif
+