[Intel-gfx] 3D hardware acceleration through the server?

[Dave Airlie]

On Fri, Nov 13, 2009 at 5:56 AM, Bob Schulman <bob at rexdog.net> wrote:
> Is there a code path in the X11R7 code base available from
> intellinuxgraphics.org, where hardware acceleration for GL rendering would
> occur in the X server rather than on the X client side? If so, what bread
> crumbs can you toss my way so I figure out how to do a build for the
> server-side so that GL requests which come over the wire get parsed and
> dispatched, and then eventually bubble down to the DRI layer?
>
> Or...is _all_ DRI magic strictly client-side? (If all DRI magic is
> client-side, well, umm, why is that? Why preclude over-the-wire clients from
> getting hw acceleration?)
>

AIGLX has worked for a couple of X.org releases now

Dave.

> Thanks.
>
> bob
>
> -----Original Message-----
> From: Dave Airlie [mailto:airlied at gmail.com]
> Sent: Monday, October 12, 2009 12:14 AM
> To: Bob Schulman
> Cc: intel-gfx at lists.freedesktop.org
> Subject: Re: [Intel-gfx] silliest of questions
>
> On Mon, Oct 12, 2009 at 1:39 PM, Bob Schulman <bob at rexdog.net> wrote:
>> For the Intel graphics source that's available through
>> intellinuxgraphics.org, I cannot figure out if accelerated OpenGL is
>> supported through your supplied source code (available through
>> freedesktop.org) or not. I see that DRI is supported in the source code
>> base, but I don't see where OpenGL API calls are transformed into pokes of
>> 3D registers in any of your source. Am I missing something?
>>
>>
>>
>> From what I can tell, OpenGL is supported for this source base through
> Mesa,
>> but I just don't see where fastpaths through (or around) the Mesa code get
>> set up so that accelerated rendering, using the 3D registers of whatever
>> Intel part has been chosen, get set up.
>
> All in Mesa, the GL api goes mostly via magic libGL stuff into the DRI 3D
> driver
> which has entrypoints in places in mesa src/mesa/main directory,
> these call hooks in the driver function table, which in Intels case call
> drivers
> in src/mesa/main/drivers/dri/intel,i965,i915
>
> Dave.
>
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