PPSSPP Feature Request Page

[[Unknown]]

The PSP screen was 480x272. If you use 1x PSP for both options, you are already getting 480x272, which is only a bit more than half your device's resolution (800x480 -> 400x240.)

If you find that setting the "Display resolution (HW scaler)" option to 1x PSP or Native has little or no impact on performance, that means that probably 0.5x PSP would probably also have little or no impact on performance.

The Galaxy S2 i9100 has a Mali-400 gpu. Unfortunately, PPSSPP does not work well with Mali-400 GPUs, either because of bad drivers or because of lack of shader registers. Either way, it has to shift into "slow gear" to make graphics even show up. Newer Mali GPUs and other GPUs don't have this problem (not 100% sure about Mali-450), it seems to be relatively unique to the Mali-400.

To put it in more understandable terms, the lighting and effects that PSP games do is too complicated for your GPU, so we have to do them a slower way on your CPU. I guess we could try an option to completely disable lighting or something as a speedhack, but this would probably cause severe and unexpected graphical glitches. I'm not sure if games would even be playable without lighting (although the less complicated usage could be left unaffected.)

-[Unknown]