Use hardware sprite plane as overlay

[Jasper St. Pierre]

The only currently supported mechanism for using hardware overlays is
video planes through VDPAU / VA-API.

Xorg does not have any other supported mechanism for using hardware
overlays. Try looking at Wayland, which can have support for hardware
planes.

On Fri, Dec 25, 2015 at 8:29 AM, Cao Duc Quan <caoducquan at gmail.com> wrote:
> Dear all,
> I am studying the Graphics stack in linux.
> I found that the Intel Baytrail E38xx support 2 pipe display and each pipe
> has
> - 1 x primary plane
> - 2 x sprite plane
> - 1 x cursor plane
>
> Is it possible to use sprite plane as overlay plane which means we can
> render UI to sprite plane (for example QT could render Widget to sprite
> plane) ? If so, could any one point me to some a sample code or any
> documents ?
>
> Many Thanks,
> --
> Quan Cao
> 0976574864
>
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-- 
  Jasper