Re: [Dri-devel] Slow Mtex in DRI

[Ville <sy...@sc...>]

On Sun, Feb 15, 2004 at 08:32:15AM -0600, Ryan Underwood wrote:
>=20
> On Sun, Feb 15, 2004 at 03:50:54PM +0200, Ville Syrj=E4l=E4 wrote:
> >=20
> > A comment in the r128 driver sources makes me think the hardware can=20
> > support this but someone would need to add support for a new vertex f=
ormat=20
> > into the templates.
> >=20
> > For mga we would need better microcode to support this. The hardware =
could=20
> > do it but the microcode is holding us back :(
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> Is it possible to extract a newer microcode from the windows drivers?

Maybe if someone figures out which microcode is which. And if there's=20
projective multitexturing microcode in the drivers someone has to figure=20
out how they want the vertex data. I had a look at a hexdump of the=20
windows drivers once and it looked like the microcode may be slightly=20
different than what we have.

> But I wonder if mga can even do this under
> windows.

I have no idea. It would be easy to test with projtex.

> I guess it would only be G400+, since G200 only has one WARP
> so it seems that it wouldnt be able to do hardware multitexture.

That's right. G200 can't do multitexturing at all. That's the reason why=20
it has only one WARP, it doesn't really need two WARPs.

--=20
Ville Syrj=E4l=E4
sy...@sc...
http://www.sci.fi/~syrjala/