On Tue, 2010-01-12 at 21:37 -0800, Ben Skeggs wrote:
> On Tue, 2010-01-12 at 11:01 -0500, Younes Manton wrote:
> > On Tue, Jan 12, 2010 at 9:44 AM, Keith Whitwell <kei...@vmware.com> wrote:
> > > On Tue, 2010-01-12 at 06:33 -0800, Roland Scheidegger wrote:
> > >> >>>
> > >> >>> Profile                             7 (2009)        6 (2008)
> > >> 5
> > >> >>> (2006)        4 (2004)        3 (2003)        2 (2002)         1
> > >> (2000)
> > >> >>> Fragment Shader                     Yes             Yes
> > >> Yes
> > >> >>>           Yes             Yes             Yes              Yes
> > >> >> DX 7 didn't have any shader model IIRC. DX8/8.1 introduced shader
> > >> models
> > >> >> 1.0-1.3/1.4.
> > >> >
> > >> > Yea, that level should be gone.
> > >> Though thinking about this, maybe we should keep a level below lowest
> > >> dx9 feature level, since gallium drivers exist which are pretty low on
> > >> the feature scale (like the nv04/10/20). I don't know how well they'll
> > >> ever going to work, since they'd need the fixed function fragment
> > >> operations out of tgsi, but maybe we shouldn't prevent it by forcing
> > >> them to announce support of fragment shaders.
> > >
> > > The base level of gallium functionality included fragment shaders from
> > > the start, these early nv drivers don't really change that.
> > >
> > > In my view these are a speculative bet that with a lot of effort it is
> > > possible to turn shaders back into fixed-function, but supporting that
> > > isn't a design goal for gallium as a whole.
> > >
> > > Keith
> > 
> > Just my opinion,
> > 
> > I wouldn't count on nv04-nv20 actually staying in gallium. At some
> > point we wanted to experiment with shaders on fixed func, but I don't
> > think anyone is really motivated or optimistic that it will turn out
> > well. They're already rotting as it is. Francisco Jerez is working on
> > a classic Mesa driver for these and if/when they're worth pushing to
> > master I'd expect the gallium drivers to be axed.
> Agreed.  IMO they could be removed now, I don't see them ever being
> done, and Francisco's drivers are shaping up quite nicely already.

That'd be fine with me too.

Keith



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