Unable to See 32:9 Resolutions, and 21:9 Resolutions Showing as 64:27 in mupen64plus-libretro-nx via RetroArch on a 32:9 Monitor

[leo9py]

Description

I am currently using mupen64plus-libretro-nx through RetroArch on a 32:9 monitor, but I am facing an issue where I am unable to select or see any 32:9 resolutions. Additionally, I have noticed that 21:9 resolutions are showing up as 64:27 for some reason, which seems unusual.

Steps to Reproduce

1. Launch RetroArch on a 32:9 monitor.
2. Open a game using the mupen64plus-libretro-nx core.
3. Navigate to the wide resolution settings.
4. Attempt to select a 32:9 resolution.

Expected Behavior

I should be able to select a 32:9 resolution that properly fits my monitor's aspect ratio. Also, 21:9 resolutions should display as 21:9, not 64:27.

Observed Behavior

• No 32:9 resolutions are available for selection.
• 21:9 resolutions are being displayed as 64:27.

Environment

• Core: mupen64plus-libretro-nx
• Platform: RetroArch
• Monitor: 32:9 ultrawide 5120x1440
• Operating System: Windows 11 Pro x64

Additional Information

Is this a bug or a limitation of the mupen64plus-libretro-nx core? If it’s not a bug, is there a way to manually enter a custom resolution for 32:9 display support? Any help or clarification would be appreciated!

[m4xw]

#259

This change adds support for 64:27 aspect ratio, oftenly labeled as 21:9 as a marketing term.

You can add them here https://github.com/libretro/mupen64plus-libretro-nx/blob/develop/libretro/libretro_core_options.h#L114-L135

PR it and I add it.