On Thu, May 11, 2023 at 11:32 AM Lynne <d...@lynne.ee> wrote:
>
> May 11, 2023, 10:39 by ffm...@haasn.xyz:
>
> > From: Niklas Haas <g...@haasn.dev>
> >
> > Recent versions of libplacebo have required Vulkan versions incompatible
> > with lavu Vulkan hwcontexts. While this is expected to change
> > eventually, breaking vf_libplacebo every time there is such a transition
> > period is obviously undesired behavior, as the following sea of bug
> > reports shows.
> >
> > This commit adds a fallback path for pl_vulkan_import failures which
> > simply creates an internal device instead. Also useful when no interop
> > with lavu vulkan hwframes is needed or desired.
> >
> > Fixes: https://github.com/haasn/libplacebo/issues/170
> > Fixes: https://github.com/mpv-player/mpv/issues/9589#issuecomment-1535432185
> > Fixes: https://code.videolan.org/videolan/libplacebo/-/issues/270
> >
>
> NAK. The whole point of the hwcontext infrastructure is to be
> explicit, and creating a new device behind the scenes is anything but that.
>
>

This is not a native vulkan filter, it is an external library not
married to our vulkan infrastructure - it merely has compatibility for
it.

Ensuring it works, as it might have separate requirements or a
different development cycle, is hardly a bad thing. And it greatly
simplifies the usability for users that only want a quick GPU
processing.

- Hendrik
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