07:44 <linkmauve> mntirc, panfrost exposes OpenGL 3.1 only, IIRC Dolphin requires a more recent version to work at all, for instance I remember it using geometry shaders (which got introduced in 3.2) to emulate point and line width correctly.

07:46 <linkmauve> About one decade ago, I could run it on my Sandy Bridge laptop (with absolutely terrible performances), I don’t remember if it was before or after that GPU got to OpenGL 3.3 (before it was 3.1 as well).

07:46 <linkmauve> I also seem to remember that no fallback got written for when the driver doesn’t do geometry shaders, but that was long ago so perhaps someone added that code in Dolphin since then.

12:18 <mntirc> linkmauve: hmm yes i've seen that, afaik there is a fallback though. it did work for me on a311d with panfrost (g52), which also doesn't support geo shaders

13:25 <linkmauve> Ok, so my info is outdated, thanks for updating me. :)

17:35 <HdkR> The fallback implementation when GS isn't supported is to have broken point and size rendering, which most games don't use so most of the time you wouldn't even notice it

21:19 <linkmauve> Ah right, I just had a look at my logs and the issue was that the fallback couldn’t be forced, so if Mesa advertises support for GS (so GL 3.2+) Dolphin will always use it, even if for performances reasons I would prefer to get the bogus point and line rendering.

21:19 <HdkR> Indeed

21:19 <linkmauve> The map in Metroid Prime murdered my Ivy Bridge back then.

21:20 <linkmauve> Thankfully nowadays my Kaby Lake can render it just fine.

21:20 <linkmauve> I still haven’t tested it on Panfrost, despite now having both a rk3568 and a rk3588 boards.