Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-19 Thread Daniel Vetter
On Thu, Sep 19, 2019 at 11:02 AM Pekka Paalanen wrote: > > On Thu, 19 Sep 2019 10:18:04 +0200 > Daniel Vetter wrote: > > > On Thu, Sep 19, 2019 at 9:18 AM Pekka Paalanen wrote: > > > > > ... > > > > Right, and we are suffering from that confusion already. Should > > > userspace use ID order if

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-19 Thread Pekka Paalanen
On Thu, 19 Sep 2019 10:18:04 +0200 Daniel Vetter wrote: > On Thu, Sep 19, 2019 at 9:18 AM Pekka Paalanen 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

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-19 Thread Daniel Vetter
On Thu, Sep 19, 2019 at 9:18 AM Pekka Paalanen wrote: > > On Mon, 16 Sep 2019 09:19:09 + > Simon Ser wrote: > > > > On Tue, 10 Sep 2019 11:20:16 + > > > Simon Ser wrote: > > > > > > > On Tuesday, September 10, 2019 1:38 PM, Pekka Paalanen > > > > wrote: > > > > > > > > > On Tue, 10

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-19 Thread Pekka Paalanen
On Mon, 16 Sep 2019 09:19:09 + Simon Ser wrote: > > On Tue, 10 Sep 2019 11:20:16 + > > Simon Ser wrote: > > > > > On Tuesday, September 10, 2019 1:38 PM, Pekka Paalanen > > > wrote: > > > > > > > On Tue, 10 Sep 2019 10:09:55 + > > > > Simon Ser cont...@emersion.fr wrote: > > >

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-16 Thread Daniel Vetter
On Tue, Sep 10, 2019 at 12:38 PM Pekka Paalanen wrote: > > On Tue, 10 Sep 2019 10:09:55 + > Simon Ser wrote: > > > Currently the property docs don't specify whether it's okay for two planes > > to > > have the same zpos value and what user-space should expect in this case. > > > > The rule

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-16 Thread Simon Ser
> On Tue, 10 Sep 2019 11:20:16 + > Simon Ser wrote: > > > On Tuesday, September 10, 2019 1:38 PM, Pekka Paalanen > > wrote: > > > > > On Tue, 10 Sep 2019 10:09:55 + > > > Simon Ser cont...@emersion.fr wrote: > > > > > > > Currently the property docs don't specify whether it's okay for

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-11 Thread Pekka Paalanen
On Tue, 10 Sep 2019 11:20:16 + Simon Ser wrote: > On Tuesday, September 10, 2019 1:38 PM, Pekka Paalanen > wrote: > > > On Tue, 10 Sep 2019 10:09:55 + > > Simon Ser cont...@emersion.fr wrote: > > > > > Currently the property docs don't specify whether it's okay for two > > > planes

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-10 Thread Simon Ser
On Tuesday, September 10, 2019 1:38 PM, Pekka Paalanen wrote: > On Tue, 10 Sep 2019 10:09:55 + > Simon Ser cont...@emersion.fr wrote: > > > Currently the property docs don't specify whether it's okay for two planes > > to > > have the same zpos value and what user-space should expect in

Re: [PATCH] drm: two planes with the same zpos have undefined ordering

2019-09-10 Thread Pekka Paalanen
On Tue, 10 Sep 2019 10:09:55 + Simon Ser wrote: > Currently the property docs don't specify whether it's okay for two planes to > have the same zpos value and what user-space should expect in this case. > > The rule mentionned in the past was to disambiguate with object IDs. However > some