Xfree86 support for Voodoo 3 acceleration

Xfree86 support for Voodoo 3 acceleration

[Nicholas Coult]

Hi,

After looking at www.xfree86.org and the source for Xfree-3.3.4,
it seems that support for the Voodoo 3 card's 2-d acceleration
is already in Xfree86!  But, (and I'm just guessing here, I do a lot
of programming but none of it is system or GUI programming) 
this support appears to run only on x86 systems currently.  There doesn't
appear to be any asm code or anything, though, so shouldn't it be 
possible to port this to the linuxppc side of things?


Dr. Nicholas Coult, Research Associate
Institute for Mathematics and Its Applications, University of Minnesota
Home Page: www.ima.umn.edu/~coult              Office: 555 Vincent Hall
Email: coult@ima.umn.edu      Phone: (612) 624-2527 Fax: (612) 624-4163


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Re: Xfree86 support for Voodoo 3 acceleration

[Stephen Edie]

Is the full source code to the driver available?  Or is it written using
the Glide libraries?  If it is written using Glide, than it will be
necessary to contact 3dfx and get Glide ported to PPC Linux before it can
be ported.  Otherwise, it's entirely possible.  :)

Stephen


>Hi,
>
>After looking at www.xfree86.org and the source for Xfree-3.3.4,
>it seems that support for the Voodoo 3 card's 2-d acceleration
>is already in Xfree86!  But, (and I'm just guessing here, I do a lot
>of programming but none of it is system or GUI programming)
>this support appears to run only on x86 systems currently.  There doesn't
>appear to be any asm code or anything, though, so shouldn't it be
>possible to port this to the linuxppc side of things?

Terra Soft Solutions, Inc.
http://www.yellowdoglinux.com


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Re: Xfree86 support for Voodoo 3 acceleration

[Peter Chang]

> >After looking at www.xfree86.org and the source for Xfree-3.3.4,
> >it seems that support for the Voodoo 3 card's 2-d acceleration
> >is already in Xfree86!  But, (and I'm just guessing here, I do a lot
> >of programming but none of it is system or GUI programming)
> >this support appears to run only on x86 systems currently.  There doesn't
> >appear to be any asm code or anything, though, so shouldn't it be
> >possible to port this to the linuxppc side of things?

At 11:45 -0600 08.27.1999, Stephen Edie wrote:
>Is the full source code to the driver available?  Or is it written using
>the Glide libraries?

glide is 3d only, and would probably use some sort of ioctl to talk 
to this driver to get board mappings etc. At least, this is how we 
did it on mac/w32 platforms.

Anyway, the 2d core is basically separate from 3d so this driver 
should probably 'just work'. Does anyone know if it uses the full 2d 
core, or the open spec that 3dfx was going to release?

\p

---
We all enter this world in the same way:
naked; screaming; soaked in blood.
But if you live your life right, that kind of
thing doesn't have to stop there. -- Dana Gould

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Re: Xfree86 support for Voodoo 3 acceleration

[David Riley]

Stephen Edie wrote:

> Is the full source code to the driver available?  Or is it written using
> the Glide libraries?  If it is written using Glide, than it will be
> necessary to contact 3dfx and get Glide ported to PPC Linux before it can
> be ported.  Otherwise, it's entirely possible.  :)

This ought to happen once someone gets a LinuxPPC machine to Darryl Strauss
<http://glide.xxedgexx.com>.


--
--"Your mouse has been moved.  Windows 95 must be restarted for change to take
effect."


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Re: Xfree86 support for Voodoo 3 acceleration

[Nicholas Coult]

On Sun, 29 Aug 1999, David Riley wrote:

> 
> Stephen Edie wrote:
> 
> > Is the full source code to the driver available?  Or is it written using
> > the Glide libraries?  If it is written using Glide, than it will be
> > necessary to contact 3dfx and get Glide ported to PPC Linux before it can
> > be ported.  Otherwise, it's entirely possible.  :)
> 
> This ought to happen once someone gets a LinuxPPC machine to Darryl Strauss
> <http://glide.xxedgexx.com>.
> 
> 

>From all appearances we don't need to wait for Darryl to have support
for 2-d acceleration in XFreee86.  Here is what Darryl himself had
to say in response to a post of mine in 3dfx.glide.linux:

> Nicholas Coult wrote:
>> 
>> What would it take to get support for the Voodoo 3 card under XFree-86 on
>> Linux/PPC?  How much of the support on the Intel side is
>> Intel-hardware-specific?
>
>Getting the X server to run shouldn't be bad. It might require changes
>to do byte swapping. 
>
>3D support would require Glide and at the moment there aren't any plans
>to port Glide to other platforms.
>
>                                                        - |Daryll

What I'm saying is, someone just needs to take the existing code and
tweak it a bit and plug it into the FBDev code and voila! We'll
have support for 2-d acceleration with Voodoo 3 cards.  I'd do it
myself if I had even the least clue where to begin - anybody have some 
pointers?

Dr. Nicholas Coult, Research Associate
Institute for Mathematics and Its Applications, University of Minnesota
Home Page: www.ima.umn.edu/~coult              Office: 555 Vincent Hall
Email: coult@ima.umn.edu      Phone: (612) 624-2527 Fax: (612) 624-4163


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Re: Xfree86 support for Voodoo 3 acceleration

[Geert Uytterhoeven]

On Mon, 30 Aug 1999, Nicholas Coult wrote:
> On Sun, 29 Aug 1999, David Riley wrote:
> > Stephen Edie wrote:
> > 
> > > Is the full source code to the driver available?  Or is it written using
> > > the Glide libraries?  If it is written using Glide, than it will be
> > > necessary to contact 3dfx and get Glide ported to PPC Linux before it can
> > > be ported.  Otherwise, it's entirely possible.  :)
> > 
> > This ought to happen once someone gets a LinuxPPC machine to Darryl Strauss
> > <http://glide.xxedgexx.com>.
> 
> >From all appearances we don't need to wait for Darryl to have support
> for 2-d acceleration in XFreee86.  Here is what Darryl himself had
> to say in response to a post of mine in 3dfx.glide.linux:

XFree86 snapshot 3.9.16 will support the 3Dfx (Banshee and Voodoo3). Darryl
knows for sure, since he wrote the driver :-)

Just wait a few more days, or become an XFree86 beta tester and taste it now...

Greetings,

						Geert

--
Geert Uytterhoeven                     Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}  http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium


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Re: Xfree86 support for Voodoo 3 acceleration

[Nicholas Coult]

As far as I can tell the full source for the 2-d driver is available as
part of the source for XFree-86 3.3.4.
In particular, the directory 

xc/programs/Xserver/hw/xfree86/vga256/drivers/tdfx

contains the source for the drivers.  

The Glide library is only for the 3-d stuff, which is another story entirely.
It is most definitely _not_ available as source code.

> 
> Is the full source code to the driver available?  Or is it written using
> the Glide libraries?  If it is written using Glide, than it will be
> necessary to contact 3dfx and get Glide ported to PPC Linux before it can
> be ported.  Otherwise, it's entirely possible.  :)
> 
> Stephen
> 
> 
> >Hi,
> >
> >After looking at www.xfree86.org and the source for Xfree-3.3.4,
> >it seems that support for the Voodoo 3 card's 2-d acceleration
> >is already in Xfree86!  But, (and I'm just guessing here, I do a lot
> >of programming but none of it is system or GUI programming)
> >this support appears to run only on x86 systems currently.  There doesn't
> >appear to be any asm code or anything, though, so shouldn't it be
> >possible to port this to the linuxppc side of things?
> 
> Terra Soft Solutions, Inc.
> http://www.yellowdoglinux.com
> 

Dr. Nicholas Coult, Research Associate
Institute for Mathematics and Its Applications, University of Minnesota
Home Page: www.ima.umn.edu/~coult              Office: 555 Vincent Hall
Email: coult@ima.umn.edu      Phone: (612) 624-2527 Fax: (612) 624-4163


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