This was brought up at our X/DDX groups meeting a couple weeks ago, and
once we got over the initial shock that anyone besides DPS was using DPA
(seriously? we had no idea), the discussion was that Xorg already must
have some sort of interface you should be using instead of porting DPA
to it - the existing Mesa OpenGL works fine without DPA, so your team
should be able to see what they use.
-Alan Coopersmith- alan.coopersmith at sun.com
Sun Microsystems, Inc. - X Window System Engineering
Linda Fellingham wrote:
> Alan,
>
> Re the second 1) below:
>
> If you provide DPA support for x.org, then we can provide the software
> OpenGL pipeline.
>
> The binaries ARE redistributable.
>
> Note that if the resource (engineering and legal) for doing the work to
> open source the non-3D party graphics cards were provided, then it would
> be relatively straightforward to do so, and I would be very supportive
> of that.
>
> Linda
>
>
> Alan Coopersmith wrote:
>> Alan Coopersmith wrote:
>>> So, now that I've bored everyone to sleep, this leaves us with these
>>> possibilities for Indiana on SPARC:
>>>
>>> 1) Ship Xsun binaries & existing SPARC Xsun driver binaries (all closed
>>> source)
>>>
>>> 2) Ship Xorg & use Martux's SPARC graphics drivers (all open source)
>>> with existing SPARC kernel driver binaries (all closed source)
>>
>> There is also a third choice I forgot to mention, probably since it's
>> the least desirable of all:
>>
>> 3) Ship Xorg with only the drivers provided by SPARC graphics (of which
>> only XVR-2500 is likely to be done by your October proposed timeline),
>> and leave those with older SPARCs unable to run X in Indiana.
>>
>> Also, Garrett reminded me of another issue in a message to ogb-discuss
>> [1]
>> - my prior description only covered 2D graphics, and ignored OpenGL.
>> For
>> OpenGL, a similar choice will have to be made:
>>
>> 1) Ship existing SPARC OpenGL, with accelerated modules for existing
>> SPARC graphics cards (closed source - and I don't know if it's
>> redistributable) - with Xsun, this has acceleration for most of the
>> mid-to-high end SPARC graphics cards, with Xorg, only XVR-2500 is
>> known to have usable hardware acceleration - I don't know if the
>> others will easily work with Xorg or not once the framework is in
>> place.
>>
>> 2) Ship open source Mesa OpenGL, as we do on x86 (and virtually all other
>> open source OS'es do), accepting that we'll have no hardware
>> acceleration
>> and break compatibility with existing SPARC OpenGL applications
>>
>> [1]
>> http://mail.opensolaris.org/pipermail/ogb-discuss/2007-June/001033.html
>>
>
>
