Disable paths that would convert points/lines to tris as that upsets selection,
feedback, rastpos.
st->draw = draw_create(); /* for selection/feedback */
+ /* Disable draw options that might convert points/lines to tris, etc.
+ * as that would foul-up feedback/selection mode.
+ */
+ draw_wide_line_threshold(st->draw, 1000.0f);
+ draw_wide_point_threshold(st->draw, 1000.0f);
+ draw_enable_line_stipple(st->draw, FALSE);
+ draw_enable_point_sprites(st->draw, FALSE);
+
st->dirty.mesa = ~0;
st->dirty.st = ~0;