Re: [PATCH v8 4/4] NOTFORMERGE: drm/logicvc: Add plane colorkey support

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FWIW this is something I added, hoping it was going to get used at
some point, but I never followed up with support in xf86-video-nouveau
for Xv. At this point, I'm not sure I ever will. I encoded the
"enabled" part into the value with a high bit (1<<24) -- not sure that
was such a great idea. All NVIDIA hardware supports colorkey (and not
actual alpha, until the very latest GPUs - Volta/Turing families),
although my implementation only covers the pre-G80 series (i.e. DX9
and earlier GPUs - pre-2008). Should a determination of usefulness be
reached, it would be easy to implement on the remainder though.

Cheers,

  -ilia

On Wed, Dec 23, 2020 at 5:20 PM Simon Ser <contact@xxxxxxxxxxx> wrote:
>
> nouveau already has something for colorkey:
> https://drmdb.emersion.fr/properties/4008636142/colorkey
>
> I know this is marked "not for merge", but it would be nice to discuss
> with them and come up with a standardized property.
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> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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