1 files changed, 69 insertions, 0 deletions
diff --git a/backends/platform/sdl/mutex.h b/backends/platform/sdl/mutex.h
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+++ b/backends/platform/sdl/mutex.h
@@ -0,0 +1,69 @@
+/* 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 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_SDL_SUBSYS_MUTEX_H
+#define BACKENDS_SDL_SUBSYS_MUTEX_H
+
+#include "backends/base-subsys-mutex.h"
+
+#if defined(__SYMBIAN32__)
+#include <esdl\SDL.h>
+#else
+#include <SDL.h>
+#endif
+
+class SdlSubSys_Mutex : public BaseSubSys_Mutex {
+public:
+	SdlSubSys_Mutex();
+	~SdlSubSys_Mutex();
+
+	virtual void mutexInit(OSystem *mainSys);
+	virtual void mutexDone();
+
+	bool hasFeature(Feature f);
+	void setFeatureState(Feature f, bool enable);
+	bool getFeatureState(Feature f);
+
+	// Mutex handling
+	MutexRef createMutex();
+	void lockMutex(MutexRef mutex);
+	void unlockMutex(MutexRef mutex);
+	void deleteMutex(MutexRef mutex);
+
+protected:
+	bool _inited;
+
+	/**
+	 * Mutex which prevents multiple threads from interfering with each other
+	 * when accessing the screen.
+	 */
+	MutexRef _graphicsMutex;
+
+private:
+	OSystem *_mainSys;
+};
+
+
+#endif