On Thu, Sep 19, 2019 at 11:02 AM Pekka Paalanen <ppaalanen@xxxxxxxxx> wrote: > > On Thu, 19 Sep 2019 10:18:04 +0200 > Daniel Vetter <daniel.vetter@xxxxxxxx> wrote: > > > On Thu, Sep 19, 2019 at 9:18 AM Pekka Paalanen <ppaalanen@xxxxxxxxx> wrote: > > > > > ... > > > > Right, and we are suffering from that confusion already. Should > > > userspace use ID order if zpos property is not there or not? I have no > > > idea. > > > > Nope. I think the only options for this case are: > > - file bug against upstream driver so they add zpos > > - you magically know how planes work on that hw > > - you don't overlap planes at all > > - cursor is above primary, that much we can guarantee > > > > Yes it's kinda uapi fail we didn't add zpos from the start :-/ > > Good. Weston does the last two. The confusion did not last long > enough to let us add code using the object ID to infer stacking order. > > Although, Weston does have the assumption that overlays are in unknown > order between primary and cursor, which now seems false. I think cursor is always on top, but some of the overlays can be underlays. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
