[Mesa-dev] [PATCH 08/18] radeonsi: get info about VS outputs from tgsi_shader_info

[Ilia Mirkin]

On Tue, Dec 9, 2014 at 10:22 AM, Marek Olšák <maraeo at gmail.com> wrote:
> It looks like clip planes are deprecated, so you can only use them
> with the compatibility profile.

Right.

>
> Sure we could support 8 clip planes if ClipVertex is written, but:
> - we can only support 6 clip planes if ClipVertex isn't written
> - pipe_context::set_clip_state can set only 6 clip planes

That seems like an oversight in your driver, no? I don't see anything
in mesa/st that would prevent me from setting and enabling all 8 clip
planes in a compat context. Anyways, I guess given that you only ever
look at the first 6 clip planes in your set_clip_state logic, that six
bits thing is internally consistent :) FWIW in nv50 (and fairly sure
nvc0 as well) we support all 8 UCP's.

  -ilia