OSYSTEM: Add resetGraphicsScale() method.

This fixes a hack for resetting the graphics scale to x1 when starting games that have a large screen size. The SDL graphics manager should now scale back to x1 without changing the current scaler in use, as well as the OpenGL graphics manager.

svn-id: r51492

2 files changed, 5 insertions, 0 deletions

diff --git a/backends/graphics/opengl/opengl-graphics.cpp b/backends/graphics/opengl/opengl-graphics.cpp
index 0526a791ee..11ac5f0fce 100644
--- a/backends/graphics/opengl/opengl-graphics.cpp
+++ b/backends/graphics/opengl/opengl-graphics.cpp
@@ -168,6 +168,10 @@ int OpenGLGraphicsManager::getGraphicsMode() const {
 	return _videoMode.mode;
 }
 
+void OpenGLGraphicsManager::resetGraphicsScale() {
+	setScale(1);
+}
+
 #ifdef USE_RGB_COLOR
 
 Graphics::PixelFormat OpenGLGraphicsManager::getScreenFormat() const {
diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h
index ee14df836e..88bcfe564b 100644
--- a/backends/graphics/opengl/opengl-graphics.h
+++ b/backends/graphics/opengl/opengl-graphics.h
@@ -59,6 +59,7 @@ public:
 	virtual int getDefaultGraphicsMode() const;
 	virtual bool setGraphicsMode(int mode);
 	virtual int getGraphicsMode() const;
+	virtual void resetGraphicsScale();
 #ifdef USE_RGB_COLOR
 	virtual Graphics::PixelFormat getScreenFormat() const;
 	virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const = 0;