[Bug 92220] GL_NV_vdpau_interop partially available

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92220

--- Comment #3 from Alex Deucher <alexdeucher at gmail.com> ---
You can't really enable a GL extension if there is not support for the entire
thing.  Early versions of UVD did not support field based output.  The
extension provides access to both the raw decoded video surfaces (field based)
and the vdpau processed output surface (frame based).  I think by default kodi
only uses the vdapu processed output which is the part that is supported. 
Changing the kodi settings may require the full extension which will not work.

I guess there are 3 options:

1. Force the option but limit it to cases where you are only using the output
surface via the interop extension.  This works today.
2. Add an extra step to the drivers using shaders to split the frame up into
separate fields in vlVdpVideoSurfaceGallium
(src/gallium/state_trackers/vdpau/surface.c) for chips that don't support field
based decode.  This adds an extra copy and someone needs to write the code. 
With that done, the extension can be enabled on all asics.
3.  Write a new simplified GL/VDPAU interop extension that only supports
interop with output surfaces.  This extension could be enabled on all asics.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20151001/5b8fd8ac/attachment.html>