GRAPHICS: Add new overridable updateScreen method to Screen

graphics/screen.cpp

@@ -53,10 +53,14 @@ void Screen::update() {
 	}
 
 	// Signal the physical screen to update
-	g_system->updateScreen();
+	updateScreen();
 	_dirtyRects.clear();
 }
 
+void Screen::updateScreen() {
+	// Update the screen
+	g_system->updateScreen();
+}
 
 void Screen::addDirtyRect(const Common::Rect &r) {
 	Common::Rect bounds = r;

graphics/screen.h

@@ -40,22 +40,22 @@ namespace Graphics {
  * areas to the physical screen
  */
 class Screen : public ManagedSurface {
-private:
+protected:
 	/**
 	 * List of affected areas of the screen
 	 */
 	Common::List<Common::Rect> _dirtyRects;
-private:
+protected:
 	/**
-	* Merges together overlapping dirty areas of the screen
+	 * Merges together overlapping dirty areas of the screen
-	*/
+	 */
 	void mergeDirtyRects();
 
 	/**
-	* Returns the union of two dirty area rectangles
+	 * Returns the union of two dirty area rectangles
-	*/
+	 */
 	bool unionRectangle(Common::Rect &destRect, const Common::Rect &src1, const Common::Rect &src2);
-protected:
+
 	/**
 	 * Adds a rectangle to the list of modified areas of the screen during the
 	 * current frame
@@ -87,6 +87,11 @@ public:
 	 */
 	virtual void update();
 
+	/**
+	 * Updates the screen at the end of an update call
+	 */
+	virtual void updateScreen();
+
 	/**
 	 * Return the currently active palette
 	 */