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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - GL_NV_vdpau_interop partially available"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92220#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - GL_NV_vdpau_interop partially available"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92220">bug 92220</a>
from <span class="vcard"><a class="email" href="mailto:fernetmenta@online.de" title="Rainer Hochecker <fernetmenta@online.de>"> <span class="fn">Rainer Hochecker</span></a>
</span></b>
<pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=92220#c3">comment #3</a>)
<span class="quote">>
> 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.</span >
I think option 1. is good enough. This is done by setting the environment
variable, right? We can force using the mixer if this variable is set.</pre>
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