[PATCH 14/19] present: Add window flip mode

Michel Dänzer michel at daenzer.net
Tue Feb 6 11:21:31 UTC 2018

On 2018-02-05 09:08 PM, Adam Jackson wrote:
> On Mon, 2018-02-05 at 12:53 +0100, Michel Dänzer wrote:
>>>> The inability to queue a presentation to the next MSC is more of a step
>>>> back compared to the status quo.
>>> I'm about to go write up some ideas I'm working on that will make it
>>> possible to more regularly display redirected windows at the target MSC,
>>> and to reliably report which MSC the window contents were displayed at.
>>> I mention this because I think there are some parallels between that
>>> work and this.
>> Not really seeing that. Composite isn't involved with Xwayland.
> This is not entirely true, I don't think. In rootless mode you only get
> a wl_surface for manually-redirected windows; if you don't have a
> compositing window manager running, you don't get X windows.

Oh, I wasn't aware of that, thanks.

Still, the Xwayland DDX pushes window contents to the Wayland compositor
directly, without a round-trip to the compositing manager, right?

Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

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