It is exactly how Apple does fractional scaling. There is also some kind of belief, that scaling down framebuffer is somehow demanding. It isn't. The output en

It is exactly how Apple does fractional scaling. There is also some kind of belief, that scaling down framebuffer is somehow demanding. It isn't. The output encoder (the modern equivalent of VGA DAC) can do it on the fly. For several overlaid planes, each at different scale, at once (one of these planes is going to be your cursor).