The vsync field in t.window and love.window.setMode is now an integer.

0 disables vsync, 1 sets it to sync every screen refreshes, 2 sets it to sync every 2 screen refreshes (effectively setting the framerate to half the monitor's refresh rate), etc.

As a special case, -1 also attempts to use adaptive vsync (vsync enabled when FPS is >= monitor's refresh rate, disabled whe not) if the driver supports it.

--HG--
branch : minor

src/modules/window/Window.h

@@ -203,7 +203,7 @@ struct WindowSettings
 {
 	bool fullscreen = false;
 	Window::FullscreenType fstype = Window::FULLSCREEN_DESKTOP;
-	bool vsync = true;
+	int vsync = 1;
 	int msaa = 0;
 	bool resizable = false;
 	int minwidth = 1;