[Wayland-bugs] [Bug 703500] 49 Conform Tests Regressed (FAIL)

[cogl (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=703500
  cogl | Wayland | unspecified

--- Comment #13 from U. Artie Eoff <ullysses.a.eoff at intel.com> 2013-08-16 23:40:25 UTC ---
(In reply to comment #11)
> Created an attachment (id=251958)
 View: https://bugzilla.gnome.org/attachment.cgi?id=251958
 Review: https://bugzilla.gnome.org/review?bug=703500&attachment=251958

> gl: bind position attribute to location 0
> 
> It turns out there was a bug in mesa and cogl causing these failures.
> 
> Mesa had some problems dealing with the special behaviour of attribute 0 in
> some cases which have now been fixed in master (41eef83cc030e7) and the 9.2
> branch (24d1949ddcd)
> 
> The problem in cogl was that we were always relying on the gles 2 semantics
> that there is nothing special about generic attribute 0. With big GL though
> you're required to associate attribute 0 with your position attribute.
> 
> The attached patch makes sure we always explicitly call glBindAttribLocation to
> bind cogl_position_in to location 0 which seems to fix the remaining failures
> for me.

This patch worked for me too :)

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