[opengl] query GL_MAX_CLIP_DISTANCES instead of hardcoding 8 (#4095)

The GL shader profile hardcoded max_user_clip_distances to 8. Query the
device limit like the Vulkan path already does (it reads
maxClipDistances), so we use what the host actually reports.

Clamp to Maxwell's NumClipDistances (8) since the guest never produces
more than that and the SPIR-V output array is sized for at most 8. So a
host reporting fewer than 8 is respected, and one reporting more can't
overrun anything.

Fixes #3910
https://git.eden-emu.dev/eden-emu/eden/issues/3910

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4095
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

0 files changed, 0 insertions, 0 deletions