[Nouveau] [Bug 90871] NV30: Xfwm4 use_compositing - garbled display

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90871

--- Comment #47 from Olivier Fourdan <fourdan at xfce.org> ---
(In reply to Ilia Mirkin from comment #46)
> Just my incompetence

Mine, rather.

> glMatrixMode has to go *before* glPushMatrix, not
> after. Oops. Moving it up makes the program behave as expected, at least on
> intel/hsw.
> 
> Pretty sure it's what I said -- the test program doesn't do a glXMakeCurrent
> before calling gl functions, which means their output is invalid. Not an
> epoxy issue. Rearranging the test program's code to fix this is annoying
> though.

No it's not, if the test program is invalid, it ought to be fixed.

> I wonder if this is a real issue in xfwm code as well.

Yes, most likely. This code is still early beta in xfwm4. I'll try to fix it
and Poma will be able to test I guess.

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