Any chance for bilinear image interpolation?
Xtremis77 opened this issue · 3 comments
I was looking at the image quality on devices from more or less around the same time / similar specs, and the LDK Game, and the Model S, are able to do bilinear image interpolation, and smooth filtering, respectively. I really like the blurry, smooth look on my smaller handhelds :)
I've noticed that on the 2.0 beta, there is no bilinear option in RA (only semi-linear in image interpolation). Is there any chance for having bilinear filtering in RA with version 2.0? I don't know how taxing this might be to performance, but seeing that the Model S (which as the same specs as the V90, although with a smaller screen) has a smoothing option, I think it might be worth a shot at asking :)
Thanks for your incredible work!
The LDK is an Ingenic device which uses HW scalling by onboard GPU (not preset on our devices), for that they have separate video driver on RA (sdl_dingux_gfx). The other spectrum is Trimui Model S, which rely on picoarch a minimal frontend for libretro cores (think of it as completely different app able to load RetroArch cores) - original author decide to go with custom pixel interpolation method.
Official Miyoo's RetroArch build use sdl_rs90_gfx driver for max performace, thus other pixel mixing. There is an option to load standard sdl driver with bilinear filtering, but it is waaaay slower that semi-linear. For now I suggest for you to try different "Video Filters". maybe they will suit you.
There is a possibility we will add extra image interpolation with more blur (some day), let us leave this issue open until then! Will require some work 🏋️