Re: [PATCH] mesa: potentially enable texture float for gallium

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Tue, 2017-05-30 at 12:00 -0400, Trevor Woerner wrote:
> On Tue, May 30, 2017 at 11:44 AM, Richard Purdie
> <richard.purdie@linuxfoundation.org> wrote:
> > 
> > > 
> > > Maybe this would be a better way forward? Enable it, always, in
> > > ./configure,
> > > add the patch to check for it in the code itself, then you can
> > > build
> > > for all
> > > the gallium targets (including swrast) and know that the patented
> > > code will
> > > only kick in where it's supported in hardware (and thus patent-
> > > safe)?
> > That sounds like exactly what we need to do!
> Okay. The only caveat being, if someone actually *wanted* to enable
> float for swrast, this would prevent them from going down that path.
> 
> ajax on #dri-devel pointed out that some piglit tests go from pass to
> fail instead of being skipped as a result of the above patch since
> the
> piglit tests are done with swrast and run very poorly without float
> enabled.

If someone really wants to enable it, they can drop the patch. I'm open
to feedback from others like Ross/Jussi but IMO I think we can accept
the degraded piglit results for swrast...

Cheers,

Richard