[Nouveau] [Bug 89969] vaDriverInit fails with gallium/nouveau driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89969

Julien Isorce <julien.isorce at gmail.com> changed:

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--- Comment #12 from Julien Isorce <julien.isorce at gmail.com> ---
Created attachment 117358
  --> https://bugs.freedesktop.org/attachment.cgi?id=117358&action=edit
WIP - nouveau: add support for chunk decoding

I updated patch since I miss understood some parts last time.
Preserving data while resizing is commented out for testing since the initial
buffer is big enough for the stream I tried.
The patch keeps st/vdpau working but st/va still does not work.
Indeed it shows a green frame. I do not see any shape but I see some pixels
that let me think it does something.

How can I be sure it is not a problem from st/va ? I assume it works with
radeon (only radeon for now ? according to src/gallium/targets/va/Makefile.am I
was expecting intel too)
For nouveau, maybe it requires to do more work on st/va side.
I can try to go for the other solution to compare.

Which internal or external unit tests can I use ? Also if you have an idea how
I can debug this ?

Maybe I can compare what contains the nouveau_bo buffer between one begin/end,
between vdpau and va ? Not sure if they should contain the exact same thing at
the time _end is called.

Thx

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