Re: [Mesa3d-dev] Anyone know why: Mesa 3.3 defaults to 24bit Zbuffer?

[Brian P. <br...@va...>]

ant...@wm... wrote:
> 
> Like I posted a few days back, all the original libMesa's with Q3test
> Q3Demo and Q3A (as well as Mesa 3.2.1) report 16bit zbuffer inside the
> game, but 3.3 says 24bit ... and I thought the Voodoo2 has only 16bit
> zbuffer. Is this a bug or something that I am unaware of?
> 
> I would appreciate some quick feedback from those who know the insides of
> Mesa 3.3 real well ...

Mesa 3.3 was changed to allow arbitrary Z buffer depths at runtime,
instead of being a compile-time option.  Looks like I missed
something in the tdfx driver code.  Could you try this patch
to Mesa-3.3/src/FX/fxapi.c?

diff -r1.21 fxapi.c
946c946
<    fxMesa->haveZBuffer=depthSize ? 1 : 0;
---
>    fxMesa->haveZBuffer=depthSize ? 16 : 0;


-Brian