[Nouveau] [Bug 73200] vdpau-GL interop fails due to different screen objects

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73200

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
It would help if you attached a sample app that shows the failure. I don't
think there are any NV_vdpau_interop piglit tests.

Something needs to be done in the src/gallium/targets/*-nouveau/* logic. Radeon
(somehow, I haven't traced it all through yet) seems to use
auxiliary/vl/vl_winsys_dri.c. Nouveau has a drm_configuration for dri-nouveau
but not vdpau-nouveau -- perhaps that needs to be copied over as well? I have
no idea what it does, but it has something about sharing fd's in the code --
could be relevant to the problem at hand.

[Frankly I'm not entirely sure how this is supposed to work given megadrivers,
but I'm sure it's just a lack of understanding on my part rather than a
shortcoming of the system.]

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