Some games show constant 0 fps

[pebeto]

It seems that using the method defined in getFps we cannot calculate the frame-rate for [ULES00108] Midnight Club 3: DUB Edition. I don't know the reason, but I think it could be something related to the fact that it was designed with a vision to an old firmware (kernel 1.XX or 2.XX).

[pebeto]

The same occurs with Grand Theft Auto: Liberty City Stories.

[pebeto]

The same occurs with Dante's Inferno (not from an old firmware -- 5.XX kernel)

[pebeto]

fps_counter gets stuck at the same value in those games. It looks to be related with the hook to sceDisplaySetFrameBuffer. The same occurs using sceDisplaySetFrameBufferInternal.
In my tests around Midnight Club 3: DUB Edition, the fps_counter variable increments by one when initial videos occur (both Rockstar logos and video intro). Looks like a double buffer.

[pebeto]

After some research, it seems that there are some games that use double buffering (an internal framebuffer allocated in the VRAM). Because of this, our effort to get a way to hook into this second framebuffer is beyond our capabilities (I could be wrong).

That's my hypothesis.

[pebeto]

The same occurs with POPS. Next release will mention that FPS indicator doesn't work with that kind of executable.

[pebeto]

Old plugin CWCheat suffers the same issue with those games. I can confirm that this is a double buffer issue.