Re: [Mesa3d-dev] R200 / ext_fog_coord

[Roland S. <rsc...@hi...>]

>> For the immediate mode calls, we'd need to calculate the fog factor 
>> and store that to the vertex array, and store the fog coord to the 
>> Mesa state.  That part is pretty easy.  The part that I'm a little 
>> unsure about is handling FOG_COORD_ARRAY.
> 
> hmm, ok. Sounds troublesome enough.

Ok, here's another bit.
This fixes the normal tcl path (tcl_mode=1), but it is ugly. It just 
uses a different emit_vector function for the fog coords. The fog factor 
calculations are shamelessly ripped from t_vb_fog.c (woud be nice if 
that could get called directly I think).
codegen doesn't work, it would probably need the same fog calculation 
code (where should it live?), and additionally some magic for storing 
the fog coords so replaying the vertices is possible.
(this patch has to be applied on top of the other one, I hope it applies 
cleanly).

Roland