2 files changed, 58 insertions, 4 deletions

diff --git a/backends/graphics/openglsdl/openglsdl-graphics.cpp b/backends/graphics/openglsdl/openglsdl-graphics.cpp
index bd7dd32e3b..8828cb5f49 100644
--- a/backends/graphics/openglsdl/openglsdl-graphics.cpp
+++ b/backends/graphics/openglsdl/openglsdl-graphics.cpp
@@ -30,8 +30,9 @@
 #include "common/textconsole.h"
 #include "common/translation.h"
 
-OpenGLSdlGraphicsManager::OpenGLSdlGraphicsManager()
+OpenGLSdlGraphicsManager::OpenGLSdlGraphicsManager(SdlEventSource *eventSource)
 	:
+	SdlGraphicsManager(eventSource),
 	_hwscreen(0),
 	_screenResized(false),
 	_activeFullscreenMode(-2),
@@ -655,4 +656,50 @@ bool OpenGLSdlGraphicsManager::notifyEvent(const Common::Event &event) {
 	return OpenGLGraphicsManager::notifyEvent(event);
 }
 
+void OpenGLSdlGraphicsManager::notifyVideoExpose() {
+}
+
+void OpenGLSdlGraphicsManager::notifyResize(const uint width, const uint height) {
+	// Do not resize if ignoring resize events.
+	if (!_ignoreResizeFrames && !getFullscreenMode()) {
+		bool scaleChanged = false;
+		beginGFXTransaction();
+			_videoMode.hardwareWidth = width;
+			_videoMode.hardwareHeight = height;
+
+			if (_videoMode.mode != OpenGL::GFX_ORIGINAL) {
+				_screenResized = true;
+				calculateDisplaySize(_videoMode.hardwareWidth, _videoMode.hardwareHeight);
+			}
+
+			int scale = MIN(_videoMode.hardwareWidth / _videoMode.screenWidth,
+			                _videoMode.hardwareHeight / _videoMode.screenHeight);
+
+			if (getScale() != scale) {
+				scaleChanged = true;
+				setScale(MAX(MIN(scale, 3), 1));
+			}
+
+			if (_videoMode.mode == OpenGL::GFX_ORIGINAL) {
+				calculateDisplaySize(_videoMode.hardwareWidth, _videoMode.hardwareHeight);
+			}
+
+			_transactionDetails.sizeChanged = true;
+		endGFXTransaction();
+#ifdef USE_OSD
+		if (scaleChanged)
+			displayScaleChangedMsg();
+#endif
+	}
+}
+
+void OpenGLSdlGraphicsManager::transformMouseCoordinates(Common::Point &point) {
+	adjustMousePosition(point.x, point.y);
+}
+ 
+void OpenGLSdlGraphicsManager::notifyMousePos(Common::Point mouse) {
+	_cursorState.x = mouse.x;
+	_cursorState.y = mouse.y;
+}
+
 #endif
diff --git a/backends/graphics/openglsdl/openglsdl-graphics.h b/backends/graphics/openglsdl/openglsdl-graphics.h
index ba9f94db2d..6cd255bbb8 100644
--- a/backends/graphics/openglsdl/openglsdl-graphics.h
+++ b/backends/graphics/openglsdl/openglsdl-graphics.h
@@ -23,19 +23,20 @@
 #ifndef BACKENDS_GRAPHICS_OPENGLSDL_H
 #define BACKENDS_GRAPHICS_OPENGLSDL_H
 
-#include "backends/platform/sdl/sdl-sys.h"
 #if defined(ARRAYSIZE) && !defined(_WINDOWS_)
 #undef ARRAYSIZE
 #endif
+#include "backends/platform/sdl/sdl-sys.h"
+#include "backends/graphics/sdl/sdl-graphics.h"
 
 #include "backends/graphics/opengl/opengl-graphics.h"
 
 /**
  * SDL OpenGL graphics manager
  */
-class OpenGLSdlGraphicsManager : public OpenGLGraphicsManager {
+class OpenGLSdlGraphicsManager : public OpenGLGraphicsManager, public SdlGraphicsManager {
 public:
-	OpenGLSdlGraphicsManager();
+	OpenGLSdlGraphicsManager(SdlEventSource *eventSource);
 	virtual ~OpenGLSdlGraphicsManager();
 
 	virtual bool hasFeature(OSystem::Feature f);
@@ -49,6 +50,12 @@ public:
 
 	virtual void updateScreen();
 
+	// SdlGraphicsManager interface
+	virtual void notifyVideoExpose();
+	virtual void notifyResize(const uint width, const uint height);
+	virtual void transformMouseCoordinates(Common::Point &point);
+	virtual void notifyMousePos(Common::Point mouse);
+
 protected:
 	virtual void internUpdateScreen();