Added 'timer' backend module, based on the existing TimerManager code (work in progress)

svn-id: r23279

1 files changed, 59 insertions, 0 deletions

diff --git a/backends/timer/default/default-timer.h b/backends/timer/default/default-timer.h
new file mode 100644
index 0000000000..12779cc59c
--- /dev/null
+++ b/backends/timer/default/default-timer.h
@@ -0,0 +1,59 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2002-2006 The ScummVM project
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef BACKENDS_TIMER_DEFAULT_H
+#define BACKENDS_TIMER_DEFAULT_H
+
+#include "common/timer.h"
+#include "common/mutex.h"
+
+class OSystem;
+
+class DefaultTimerManager : public Common::TimerManager {
+private:
+	enum {
+		MAX_TIMERS = 8
+	};
+	OSystem *_system;
+	Common::Mutex _mutex;
+	void *_timerHandler;
+	int32 _thisTime;
+	int32 _lastTime;
+
+	struct TimerSlots {
+		TimerProc procedure;
+		int32 interval;
+		int32 counter;
+		void *refCon;
+	} _timerSlots[MAX_TIMERS];
+
+public:
+	DefaultTimerManager(OSystem *system);
+	~DefaultTimerManager();
+	bool installTimerProc(TimerProc proc, int32 interval, void *refCon);
+	void removeTimerProc(TimerProc proc);
+
+protected:
+	static int timer_handler(int t);
+	int handler(int t);
+};
+
+#endif