Cyril Brulebois wrote:
> Hi again,
>
> I built xorg-server 1.2.0 on top of mesa 6.5.2 (instead of 1.1.1 on top
> of mesa 6.5.1) and this problem looks like vanished. I'm currently
> trying to see whether a backport of the fix is easy, which would be good
> news for the next (one can hope) Debian stable release.
There was a line-clipping fix that went into 6.5.2:
diff Mesa-6.5.1/src/mesa/tnl/t_vb_cliptmp.h
Mesa-6.5.2/src/mesa/tnl/t_vb_cliptmp.h
3c3
< * Version: 6.5.1
---
> * Version: 6.5.2
127a128
> const GLuint v0_orig = v0;
156c157
< else
---
> else {
157a159
> }
158a161,164
> /* Note: we need to use vertex v0_orig when computing the new
> * interpolated/clipped vertex position, not the current v0 which
> * may have got set when we clipped the other end of the line!
> */
160,161c166,167
< INTERP_4F( t1, coord[newvert], coord[v1], coord[v0] );
< interp( ctx, t1, newvert, v1, v0, GL_FALSE );
---
> INTERP_4F( t1, coord[newvert], coord[v1], coord[v0_orig] );
> interp( ctx, t1, newvert, v1, v0_orig, GL_FALSE );
170c176
< else
---
> else {
171a178
> }
That may be it. I've been unable to reproduce the Blender crash.
-Brian
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