Yes, for fancy upscaling or applying pixel shader effects like CRT filters, doing the final pass on the GPU definitely makes sense. This would no longer be a "m

Yes, for fancy upscaling or applying pixel shader effects like CRT filters, doing the final pass on the GPU definitely makes sense. This would no longer be a "minimal" library though. Window system composers should also be able to upscale bitmaps on their own though, and nothing prevents them to use the GPU for this.