Re: question about drm backend

2018-11-23 Thread Pekka Paalanen
On Fri, 23 Nov 2018 20:12:53 +0800 zou lan wrote: > Hi pekka > > I check the atomic commit part of the drm backend in weston 5.0. But I am > not sure if some vendors support one atomic commit to update many CRTCs, so Hi Nancy, in my opinion vendors really should support it. If they don't, it l

Re: question about drm backend

2018-11-23 Thread zou lan
Hi pekka I check the atomic commit part of the drm backend in weston 5.0. But I am not sure if some vendors support one atomic commit to update many CRTCs, so I was wondering if one output repaint to do one atomic commit would match the weston 5.0's architecture if they don't support it. I think t

Re: question about drm backend

2018-11-23 Thread Pekka Paalanen
On Fri, 23 Nov 2018 16:22:56 +0800 zou lan wrote: > Hi pekka > > >>do you mean users as humans or as apps? > yes. I mean the apps. I think it's no big impact for apps. The major > changes for weston new version is focus on libweston/drm backend. Hi Nancy, Weston and any compositor is always

Re: question about drm backend

2018-11-23 Thread zou lan
Hi pekka >>do you mean users as humans or as apps? yes. I mean the apps. I think it's no big impact for apps. The major changes for weston new version is focus on libweston/drm backend. I still want to ask something about drm backend. About on_drm_input() function in compositor-drm.c, do this fun

Re: question about drm backend

2018-11-20 Thread Pekka Paalanen
On Tue, 20 Nov 2018 20:32:53 +0800 zou lan wrote: > Hi pekka > > Thank you so much to explain the drm backend details. I ask these because > some company may implement their own drm backend, changes on interfaces > between libweston > and drm backend may increase the merge effort. > > Could I a

Re: question about drm backend

2018-11-20 Thread zou lan
Hi pekka Thank you so much to explain the drm backend details. I ask these because some company may implement their own drm backend, changes on interfaces between libweston and drm backend may increase the merge effort. Could I also ask is weston backward compatible from weston 2.0 to weston 5.0

Re: question about drm backend

2018-11-20 Thread Pekka Paalanen
On Tue, 20 Nov 2018 17:37:34 +0800 zou lan wrote: > Hi pekka > > Thank you for your reply. I have other questions about drm backend. > I find weston 5.0 modify so much about drm backend and the interfaces of > compositor communicate with drm backend. > Is there any documents about the drm backe

Re: question about drm backend

2018-11-20 Thread zou lan
Hi pekka Thank you for your reply. I have other questions about drm backend. I find weston 5.0 modify so much about drm backend and the interfaces of compositor communicate with drm backend. Is there any documents about the drm backend design? Why compositor need to add a structure weston_head? I