The Libretro Options Menu – the Key to Enhanced PlayStation Emulation
This post builds upon the information in the preceeding article entitled RetroPie Emulation: RetroArch, Libretro, and the Power of the Options Menu.
Edit: This post has been extended to account for differences in RetroPie 3.6’s version of RetroArch/Libretro. The PlayStation emulator remains the same in both the 2.x and 3.x RetroPie revisions (Pcsx-ReARMed r22). The original post was based on RetroPie 2.x
Topics Covered In Part 1
- PlayStation Emulation on PiPlay and RetroPie
- Accessing the RetroArch/Libretro Options Menu
- Standalone Menu Entries
- Saving and Loading Game State
- Displaying the Emulator Framerate
- Libretro-Core Emulator Meta Keys
- Libretro-Menu – Avoid the Search Option
PlayStation Emulation on PiPlay and RetroPie
As noted in the aforementioned post, before discovering RetroPie I’d been running PiPlay on the Raspberry Pi 2, which provides a broadly similar emulation platform to RetroPie. Whilst the graphical emulator selection front-end is different to Emulation Station, many of the same emulators are in place; however all is not as simple as it appears.
Unfortunately, with the build of PiPlay I was using I ran into problems with various emulators; virtually all Megadrive / Genesis games I tried had corrupted sound, many would freeze at random, and there was no support at all for the 32X. The PlayStation emulator initially appeared to be excellent, however as I tried more titles I uncovered a number of shortcomings; I’m planning a future post on this topic, as the same emulator in RetroPie has a few different issues, and I became obsessed with understanding the problems in a bid to have the best of both worlds.
I should note that, being impatient to see if the Raspberry Pi was a solid emulation platform, I quickly switched to RetroPie and have not subsequently installed any newer PiPlay images; nonetheless the PiPlay distribution has many sound ideas, and is definitely worth further investigation.
One core feature which the PiPlay incarnation of the PlayStation emulator has is a comprehensive in-built options menu, accessed via the
Escape key. This allows access to various settings, affecting the graphical and audio output, save states, controllers, and more. The following screen grabs show the native menu being accessed whilst a title is running:
Coming to the RetroPie version of the same emulator, I was surprised to find that this menu no longer existed; at the time I had no knowledge of the unified environment shared by Libretro-enabled emulators, but found various references to the ‘core menu’ in forums. As I was to discover, and as detailed in the preceding post, RetroPie’s PlayStation emulator implements the standard Libretro menu system.
Note: the terms Libretro menu and RetroArch menu appear to be used as synonyms in documentation and in forum posts.