var ww = window_get_width();
var wh = window_get_height();
var sw = surface_get_width(application_surface);
var sh = surface_get_height(application_surface);
var scale_w = ww / sw;
var scale_h = wh / sh;
if (os_type == os_switch || os_type == os_ps4)
{
    if (os_type == os_switch && wh == 720)
        global.window_scale = 4/3;
    else
        global.window_scale = floor(min(scale_w, scale_h));
}
else
{
    global.window_scale = min(scale_w, scale_h);
}