[Bug 779146] dmabuf: be able to negotiate tiled surfaces

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=779146

--- Comment #37 from Scott D Phillips <scott.d.phillips at intel.com> ---
Thanks for taking a look Daniel,

(In reply to Daniel Stone from comment #36)
> Wow cool, thanks for doing that! The only comment I'd have is that it'd be
> nice to have a creation API similar to gbm_surface_create_with_modifiers()
> or VkExportImageDmaBufInfoMESAX (passed at creation time, rather than
> afterwards). Both of those specify a list of acceptable modifiers the
> implementation can choose from, which is nice for interop. But aside from
> that, looks great!

that sounds good, I'll add a way to do that. And I guess libva will also need
something akin to eglQueryDmaBufModifiersEXT so we can do the negotiation flow
Nicolas suggests.

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