Re: [Tuxracer-devel] Fullscreen mode on a Voodoo-1/2

[Jasmin P. <jf...@mu...>]

On Wed, 1 Mar 2000, Steve Baker wrote:

> I tried to play tuxracer on a Voodoo-1 (it would be the same on a Voodoo-2).
> 
> First, since these cards can ONLY run in fullscreen mode, it's necessary
> to set ~/.tuxracer so it has 'set fullscreen 1' - but when I do that, the
> image comes out showing me only the bottom-left corner of the game screen
> (that's because my X-window screen res is 1024x768 but the Voodoo card can
> only render 640x480.

Hmm.  First, try setting fullscreen back to 0.  The fullscreen option is
perhaps a bit misleading; all it does is activate game mode in GLUT, and
as far as I can tell all that does under Linux is make the window the
same size as the screen...

> When I try to fix that by setting the resolution explicitly in ~/.tuxracer,
> it ignores it - and even overwrites the settings in the file with 1024x768!

... which explains this, I think.  Remembering back to my pre-DRI days
-- I did large chunk of Tux Racer development with (Voodoo3) fullscreen
rendering, and that was before the "fullscreen" option -- the Voodoo's
fullscreen 3D mode would kick in whenever I started Tux Racer at a
resolution that matched one of the configured resolutions in my
XF86Config file (with MESA_GLX_FX set to "fullscreen", etc.).  So I'd
hope that fullscreen 3D would kick in if you start Tux Racer at 640x480,
but maybe that's wishful thinking.

> I think the problem here is that those ancient Voodoo cards simply cannot
> be made to work without special code entered just for them.
> 
> It'll take a special config option to make them work - and some nasty hacks
> to the code.  I'll see if I have time to make them...but unfortunately, I'm
> off on vacation for 2 weeks starting Friday - so it may not get done all that
> soon.

Well, I remember getting it to work on a Voodoo-2 without any special
hacks -- I think I just set the resolution and the environment variables
and it worked fine.  That was a while ago, though, and Tux Racer has
changed a fair bit since then.

BTW: Enjoy your vacation!

Cheers,
Jasmin