[ltp] Is 3D possible on FireGL 5250?

[Alex Deucher]

On Sun, May 25, 2008 at 11:14 AM, Bill Moseley <moseley@hank.org> wrote:
> On Fri, May 23, 2008 at 10:46:08PM +0100, Phil Shotton wrote:
>> I've grabbed the experimental packages Alex mentions below (see
>> http://www.phoronix.com/forums/showthread.php?t=9951) and they seem to
>> work fine. glxgears gives around 2,000 fps (was about 850 without 3d
>> acceleration).
>
> These installation instructions worked perfectly and were easy to
> complete.  I get about 2400 in glxgears.  (I think I was getting a
> higher number with the old ATI fglrx driver.)
>
> But, I can't complain with working 3D, mplayer working, and it even
> sleeps.  Bravo!
>
>
>> Haven't tried compiz or anything, but general use everything feels just
>> a bit snappier. Suspend to ram works fine, but only if I undock first
>> (this was also a problem with earlier driver and is probably nothing to
>> do with the video drivers).
>
> Yes Compiz doesn't work.  Is that because no AIGLX or Xgl?
> Compiz was nice eyecandy (and always fun to demo right after the
> Leopard showed off their cool eyecandy).
>
> Two questions:
>
> 1) Is there a list where I can follow development of the driver?
> Interested to know when I should update again.
>

you can follow the commit logs here:
mesa r500-support branch:
http://cgit.freedesktop.org/mesa/mesa/log/?h=r500-support
latest drm changes:
http://cgit.freedesktop.org/mesa/drm
latest ati (radeon) ddx changes:
http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/

>
> 2) Can anyone point me to a page that explains the components I just
> installled? ;)  There seems to be a number of drivers and modules
> working together and I'm not sure what they all do....

the diagram is a bit out of date, but should give the the basic idea:
http://dri.sourceforge.net/doc/images/control_flow.jpg

There are basically 3 components to a DRI enabled X driver: ddx, drm, mesa.
1. ddx: the X server drive- handles modesetting and server-side accel
(XAA, EXA, Xv)
2. drm: command stream handler and hw access arbiter (kernel module)
3. mesa: 3D driver (converts GL API into hw specific command streams
and submits those to the drm)

Alex