dxvk Enable descriptor buffers on ANV

Draft because we really need more perf data here, but I'd really like to have this universally enabled on desktop.

Jun 13 '25 22:06 doitsujin

I tested few games on B580 with descriptor buffers:

A Hat in Time, Max settings, Dead Bird Studio Act 1 - from 218fps to 209fps, more GPU bound with descriptor buffers The Witcher 3, Ultra High, White Orchard - from 53fps to 52fps, can't really tell which runs better, GPU bound LEGO Star Wars The Skywalker Saga - from 163fps to 159fps, GPU bound GTA 4, High settings - fps is all over the place (ranging from 100fps to 250fps), but it rarely drops below 100fps with descriptor buffers, CS thread is constantly at 100% and mostly CPU bound Need for Speed Payback, Ultra settings - from 119fps to 115fps, GPU bound

Mesa 25.2.0-devel latest git as of today + 34872

Jun 16 '25 17:06 HunterCZ122

Thanks for the data. Bit unfortunate about the GPU-bound regressions, it's a bit much for my liking at least in some cases, but as far as I understand, that's also not going away when we move away from the legacy path.

Jun 16 '25 19:06 doitsujin