[Mesa-dev] i915/swrast vertex array regression

[Ville Syrjälä]

On Tue, Jul 31, 2018 at 08:29:18AM +0200, Mathias Fröhlich wrote:
> Hi Ville,
> 
> > I noticed a while back that xonotic had started to misrender the gun
> > models on i915. Yesterday I bisected it down to commit 64d2a2048054
> > ("mesa: Make gl_vertex_array contain pointers to first order VAO
> > members."). Actually that commit broke things even worse (and the
> > game would even crash after a while), but a later commit (presumably
> > 98f35ad63c23 ("vbo: Correctly handle source arrays in vbo_split_copy.")
> > fixed things a little bit. But even with current master the guns are
> > still being misrendered. I also verified that the same breakage was
> > visible with swrast, whereas llvmpipe and i965 seemed ok.
> > 
> > To reproduce you can run 'xonotic-glx -benchmark demos/the-big-keybench.dem' 
> > and wait until the guy picks up the mortar (I think that's what its
> > called) which is maybe the third gun he picks up in that demo. The gun 
> > is supposed to have some red color on it but now it has green.
> 
> I tried to reproduce that problem using classic swrast.
> Some variants of last weeks git master show the exact same
> pictures than  swrast using the last good commit from your bisect.
> So, basically I can't reproduce the problem here.

Looks like
"vid_gl20" "0"
is needed to reproduce the issue.

-- 
Ville Syrjälä
syrjala at sci.fi
http://www.sci.fi/~syrjala/