Improved way to check scale when the resolution changes

src/io/gfx/video.cpp

@@ -77,6 +77,13 @@ void createScreen () {
 #endif
 
 #ifdef SCALE
+	// Check that the scale will fit in the current resolution
+	while ( ((screenW/320 < scaleFactor) || (screenH/200 < scaleFactor)) && (scaleFactor > 1) ) {
+
+		scaleFactor--;
+
+	}
+
 	if (scaleFactor > 1) {
 
 		canvasW = screenW / scaleFactor;

src/menu/setupmenu.cpp

@@ -445,13 +445,6 @@ int Menu::setupScaling () {
 
 		if ((controls.release(C_UP) || controls.release(C_RIGHT)) && (scaleFactor < MAX_SCALE)) scaleFactor++;
 
-		// Check that the scale will fit in the current resolution
-		if ( screenW/320 < scaleFactor || screenH/200 < scaleFactor ) {
-
-			scaleFactor = oldScaleFactor;
-
-		}
-
 		// Check for a scaling change
 		if (scaleFactor != oldScaleFactor) {