Remove explicit OSystem parameter from StackLock constructor; added OSystem::displayMessageOnOSD (not yet used; default implementation provided)

svn-id: r13413

3 files changed, 13 insertions, 11 deletions

diff --git a/backends/sdl/graphics.cpp b/backends/sdl/graphics.cpp
index 6842ab057c..e89151e03e 100644
--- a/backends/sdl/graphics.cpp
+++ b/backends/sdl/graphics.cpp
@@ -50,7 +50,7 @@ int OSystem_SDL::getDefaultGraphicsMode() const {
 }
 
 bool OSystem_SDL::setGraphicsMode(int mode) {
-	Common::StackLock lock(_graphicsMutex, this);
+	Common::StackLock lock(_graphicsMutex);
 
 	int newScaleFactor = 1;
 	ScalerProc *newScalerProc;
@@ -327,7 +327,7 @@ void OSystem_SDL::hotswap_gfx_mode() {
 }
 
 void OSystem_SDL::updateScreen() {
-	Common::StackLock lock(_graphicsMutex, this);	// Lock the mutex until this function ends
+	Common::StackLock lock(_graphicsMutex);	// Lock the mutex until this function ends
 
 	internUpdateScreen();
 }
@@ -490,13 +490,13 @@ void OSystem_SDL::internUpdateScreen() {
 bool OSystem_SDL::save_screenshot(const char *filename) {
 	assert(_hwscreen != NULL);
 
-	Common::StackLock lock(_graphicsMutex, this);	// Lock the mutex until this function ends
+	Common::StackLock lock(_graphicsMutex);	// Lock the mutex until this function ends
 	SDL_SaveBMP(_hwscreen, filename);
 	return true;
 }
 
 void OSystem_SDL::setFullscreenMode(bool enable) {
-	Common::StackLock lock(_graphicsMutex, this);
+	Common::StackLock lock(_graphicsMutex);
 
 	if (_full_screen != enable) {
 		assert(_hwscreen != 0);
@@ -536,7 +536,7 @@ void OSystem_SDL::copyRectToScreen(const byte *src, int pitch, int x, int y, int
 	if (_screen == NULL)
 		return;
 
-	Common::StackLock lock(_graphicsMutex, this);	// Lock the mutex until this function ends
+	Common::StackLock lock(_graphicsMutex);	// Lock the mutex until this function ends
 	
 	if (((long)src & 3) == 0 && pitch == _screenWidth && x==0 && y==0 &&
 			w==_screenWidth && h==_screenHeight && _mode_flags&DF_WANT_RECT_OPTIM) {
@@ -755,7 +755,7 @@ void OSystem_SDL::move_screen(int dx, int dy, int height) {
 	if ((dx == 0 && dy == 0) || height <= 0)
 		return;
 
-	Common::StackLock lock(_graphicsMutex, this);	// Lock the mutex until this function ends
+	Common::StackLock lock(_graphicsMutex);	// Lock the mutex until this function ends
 
 	byte *src, *dst;
 	int x, y;
@@ -849,7 +849,7 @@ void OSystem_SDL::clearOverlay() {
 	if (!_overlayVisible)
 		return;
 	
-	Common::StackLock lock(_graphicsMutex, this);	// Lock the mutex until this function ends
+	Common::StackLock lock(_graphicsMutex);	// Lock the mutex until this function ends
 	
 	// hide the mouse
 	undraw_mouse();
diff --git a/backends/sdl/sdl-common.h b/backends/sdl/sdl-common.h
index 89a5b750fe..127267f878 100644
--- a/backends/sdl/sdl-common.h
+++ b/backends/sdl/sdl-common.h
@@ -137,6 +137,10 @@ public:
 	virtual void setFeatureState(Feature f, bool enable);
 	virtual bool getFeatureState(Feature f);
 
+#ifdef USE_OSD
+	void displayMessageOnOSD(const char *msg);
+#endif
+
 protected:
 	void init_intern();
 
@@ -150,8 +154,6 @@ protected:
 		kOSDColorKey = 1,
 		kOSDInitialAlpha = 80			// Initial alpha level, in percent
 	};
-	
-	void displayMessageOnOSD(const char *msg);
 #endif
 
 	// hardware screen
@@ -252,7 +254,7 @@ protected:
 	void toggleMouseGrab();
 
 
-	void internUpdateScreen();
+	virtual void internUpdateScreen();
 
 	void load_gfx_mode();
 	void unload_gfx_mode();
diff --git a/backends/sdl/sdl.cpp b/backends/sdl/sdl.cpp
index fb798caacb..99093380a4 100644
--- a/backends/sdl/sdl.cpp
+++ b/backends/sdl/sdl.cpp
@@ -144,7 +144,7 @@ void OSystem_SDL::setFeatureState(Feature f, bool enable) {
 		break;
 	case kFeatureAspectRatioCorrection:
 		if (_screenHeight == 200 && _adjustAspectRatio != enable) {
-			Common::StackLock lock(_graphicsMutex, this);
+			Common::StackLock lock(_graphicsMutex);
 
 			//assert(_hwscreen != 0);
 			_adjustAspectRatio ^= true;