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List:       xfree86-devel
Subject:    Re: 3D for SMI  WAS: Re: XrandR
From:       Alex Deucher <agd5f () yahoo ! com>
Date:       2003-10-29 5:19:57
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--- Robert Woerle <robert@paceblade.com> wrote:
> Hi
> 
> I am now in contact with Keith packard and checked out his latest
> stuff ..
> it looks promising since there is already a SMI Server there ..
> unfortunately it crashes when i use the hw acceleration ...without it
> 
> works ..
> 
> 
> 
> Alex Deucher schrieb:
> 
> >there is a patch for support of the 731 in bugzilla:
> >http://bugs.xfree86.org/show_bug.cgi?id=754
> >No other drivers support roation in hardware at the moment, so it's
> up
> >to you to implement it from scratch I suspect.  Keith Packard did
> much
> >of the work for xrandr for PDAs.  You might want to look at the
> >kdrive/tinyx servers for reference.
> >
> >Any chance you'd be interested in adding dualhead or 3D support? :)
> >  
> >
> hmm .. i am no video guru ... also these are my first attempte`s with
> 
> X-Server coding ...
> i did make a touchscreen driver and such stuff until now .
> 
> Since i got the doc`s from SMI .. i have the reference to look at ...
> what is a good starting point for 3 D  ???
> is there any easy to read driver which i could derive the code from ?
> 

It depends on the how the engine works and what features it supports. 
The r128 or i810/80/45 driver may be a good reference point.  The best
way to start is to copy another driver and then slowly fill in the
functions with SMI specific code.  I admit I'm no expert when it comes
to 3d though...


> >
> >Alex
> >
> >--- Robert Woerle <robert@paceblade.com> wrote:
> >  
> >
> >>Hi
> >>
> >>I want to start implementing the Siliconmotion chips into the
> XRandR 
> >>extension ...
> >>
> >>Can someone point me to a chip which already supports this
> extension
> >>and 
> >>is able to rotate on the fly ??
> >>
> >>I recieved the hardware specs and PCI registers from siliconmotion
> >>and i 
> >>am ready to spent time on that ...
> >>i also revieved the doc`s for the latest  SMI 731 chip which is
> even
> >>not 
> >>supported at all at XFREE ...
> >>how do i get into that ...
> >>
> >>main issue is the XRANDR then comes the new 731 ...
> >>
> >>Cheers Rob
> >>-- 
> >>    
> >>


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