gpu_peops or gpu_unai (depends on compile options).
gpu_peops.so - P.E.Op.S. soft GPU, reasonably accurate but slow
(also found with older emulators on PC)
-gpu_unai.so - Unai's plugin from PCSX4ALL project. Faster than P.E.Op.S.
- but has some glitches.
+gpu_unai_old.so- Unai's plugin from PCSX4ALL project. Faster than P.E.Op.S.
+ but has some glitches (old version).
gpu_gles.so - experimental port of P.E.Op.S. MesaGL plugin to OpenGL ES.
Occasionally faster but has lots of glitches and seems to
be rather unstable (may crash the driver/system).
Changelog
---------
+r24 (2024-01-22)
+* HLE compatibility has been greatly improved
+* various compatibility and accuracy improvements
++ support for more lightgun types
+- savestates from older versions might not work, especially if HLE was used.
+ Memory card files remain fully compatible.
+* many small changes I forgot about
+
r23 (2022-03-14)
* many fixes from various contributors on github and from the libretro fork
* dynarec related slowdowns have been greatly reduced