Hi,
Le lun. 29 mars 2021 à 11:15, Pekka Paalanen <ppaalanen@xxxxxxxxx> a
écrit :
On Sat, 27 Mar 2021 11:26:26 +0000
Paul Cercueil <paul@xxxxxxxxxxxxxxx> wrote:
It has two mutually exclusive background planes (same Z level) + one
overlay plane.
What's the difference between the two background planes?
How will generic userspace know to pick the "right" one?
First primary plane cannot scale, supports RGB and C8. Second primary
plane goes through the IPU, and as such can scale and convert pixel
formats; it supports RGB, non-planar YUV, and multi-planar YUV.
Right now the userspace apps we have will simply pick the first one
that fits the bill.
Cheers,
-Paul
Le sam. 27 mars 2021 à 11:24, Simon Ser <contact@xxxxxxxxxxx> a
écrit
:
> On Saturday, March 27th, 2021 at 12:22 PM, Paul Cercueil
> <paul@xxxxxxxxxxxxxxx> wrote:
>
>> The ingenic-drm driver has two mutually exclusive primary planes
>> already; so the fact that a CRTC must have one and only one
primary
>> plane is an invalid assumption.
>
> Why does this driver expose two primary planes, if it only has a
> single
> CRTC?
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