callbackReshape :: Backend a => IORef a -> Callbacks
                -> GLFW.Window -> Int -> Int -> IO ()
callbackReshape ref callbacks _ sW sH =
  reshapeCallback callbacks ref $ V2 sW sH
callbackReshape :: Backend a => IORef a -> Callbacks
                -> GLFW.Window -> Int -> Int -> IO ()
callbackReshape ref callbacks _ sW sH =
  reshapeCallback callbacks ref $ V2 sW sH
callbackReshape ref callbacks _ sW sH =
  reshapeCallback callbacks ref $ V2 sW sH