1 files changed, 83 insertions, 0 deletions
diff --git a/backends/platform/sdl/mutex.cpp b/backends/platform/sdl/mutex.cpp
new file mode 100644
index 0000000000..ce9eef6a96
--- /dev/null
+++ b/backends/platform/sdl/mutex.cpp
@@ -0,0 +1,83 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/platform/sdl/mutex.h"
+
+SdlSubSys_Mutex::SdlSubSys_Mutex()
+	:
+	_inited(false) {
+
+}
+
+SdlSubSys_Mutex::~SdlSubSys_Mutex() {
+	if (_inited) {
+		mutexDone();
+	}
+}
+
+void SdlSubSys_Mutex::mutexInit(OSystem *mainSys) {
+	if (_inited) {
+		return;
+	}
+	_mainSys = mainSys;
+
+	_graphicsMutex = createMutex();
+
+	_inited = true;
+}
+
+void SdlSubSys_Mutex::mutexDone() {
+	deleteMutex(_graphicsMutex);
+
+	_inited = false;
+}
+
+bool SdlSubSys_Mutex::hasFeature(Feature f) {
+	return false;
+}
+
+void SdlSubSys_Mutex::setFeatureState(Feature f, bool enable) {
+	
+}
+
+bool SdlSubSys_Mutex::getFeatureState(Feature f) {
+	return false;
+}
+
+OSystem::MutexRef SdlSubSys_Mutex::createMutex() {
+	return (MutexRef) SDL_CreateMutex();
+}
+
+void SdlSubSys_Mutex::lockMutex(MutexRef mutex) {
+	SDL_mutexP((SDL_mutex *) mutex);
+}
+
+void SdlSubSys_Mutex::unlockMutex(MutexRef mutex) {
+	SDL_mutexV((SDL_mutex *) mutex);
+}
+
+void SdlSubSys_Mutex::deleteMutex(MutexRef mutex) {
+	SDL_DestroyMutex((SDL_mutex *) mutex);
+}