local backgroundImage = gfx.CreateSkinImage("song_select/bg.png", 1)

render = function(deltaTime)
    gfx.ResetTransform()

    local resx, resy = game.GetResolution()
    local desw = 1080
    local desh = 1920
    local scale = resy / desh

    local xshift = (resx - desw * scale) / 2
    local yshift = (resy - desh * scale) / 2

    gfx.Translate(xshift, yshift)
    gfx.Scale(scale, scale)

    gfx.BeginPath()
    gfx.ImageRect(0, 0, desw, desh, backgroundImage, 1, 0)
end