Texture Scaling (like PPSSPP): is it possible?

Hello all. Is it possible to implement PPSSPP's Texture Scaling feature in RPCS3? It upscale textures in realtime using xBRZ, Hybrid, Bicubic and MMPX methods, even using texture shaders.

Also, if the feature is possible: would it be possible to upscale the textures using FidelityFX Super Resolution 1.0? Not the entire frame image: treat each texture as a "frame" to upscale with FSR1.0 instead of xBRZ/etc.

There are a lot of image scaling methods that don't use AI and could be implemented as well:
Image scaling - Wikipedia
Pixel-art scaling algorithms - Wikipedia