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To: Atipa <freebsd@atipa.com>
cc: Mark Tinguely <tinguely@plains.nodak.edu>, kimc@kim.net,
        multimedia@FreeBSD.ORG
Subject: Re: Support for RIVA 128 - Diamond Viper 330 
In-reply-to: Your message of "Mon, 05 Jan 1998 19:52:44 MST."
             <Pine.BSF.3.91.980105194709.29317A-100000@dot.ishiboo.com> 
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Date: Mon, 05 Jan 1998 19:38:23 -0800
From: Amancio Hasty <hasty@rah.star-gate.com>
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I wouldn't worry about any of AGP stuff nor about the RIVA yet.

	Cheers,
	Amancio

> 
> Nice and dandy, but AGP requires kernel support. I don't think Xfree is 
> going to be a big help in that matter :)
> 
> The problem with AGP is that the programming specs are available under NDA
> only. That's the real bummer. If you program the RIVA correctly you can
> support the DAC and access the video display memory, but you won't get the
> main benefit of 528MB/sec access to main system memory, which is the whole
> point of the new bus. Many large 3D textures take up more space than is
> available from the video buffer. The buffer is to be used for holding
> pixel values, and the main system memory used for caching and computing. 
> The latter part is what makes the RIVA worth using. 
> 
> Hopefully I am wrong, but I have yet to hear anything edgewise.
> 
> Regards,
> Kevin
> 
> On Mon, 5 Jan 1998, Mark Tinguely wrote:
> 
> > Amancio is correct about sending video card request to the XFree86 group.
> > 
> > I also wanted to add that there is XFree86 supporting group (http://www.suse.de)
> > that has a beta RIVA X server. The binary is for Linux, and the sources are
> > not yet available, but it has been promised that this code will be part of
> > the next release of XFree86. The SUSE site is linked directly from the
> > XFree86 web site (http://www.xfree86.org).
> > 
> > --mark.
> >