Re: FOSDEM15: Graphics DevRoom: call for speakers.

2014-12-10 Thread Luc Verhaegen
On Thu, Oct 02, 2014 at 07:44:57PM +0200, Luc Verhaegen wrote: > Hi, > > At FOSDEM on the 31st of january and the 1st of February 2015, there > will be another graphics DevRoom. URL: https://fosdem.org/2015/ > Slots will be handed out on a first come, first serve basis. The best > slots will go

HWC Multimonitor work

2014-12-10 Thread Kevin DuBois
Hello All, Have already embarked a bit on some android multimonitor work, and wanted to share the plan as it stands for team comment/input. There are two bigger chunks to the work: Display Configuration and Control: This is currently buried too deep behind mga::DisplayDevice. I'm going to hoist i

Re: HWC Multimonitor work

2014-12-10 Thread Daniel van Vugt
Regarding Display Posting [2] ... MultiThreadedCompositor can be easily tricked into creating only one thread, one DisplayBufferCompositor and sharing it between an arbitrary number of outputs using a single render loop. Alexandros made sure of this, but I feel we have not utilised its full po

Re: HWC Multimonitor work

2014-12-10 Thread Christopher James Halse Rogers
On Thu, Dec 11, 2014 at 7:59 AM, Kevin DuBois wrote: … Details of why: HWC's prepare() and set() functions post to all the displays in one call. Incidentally, how does this work with displays of different refresh rate? Does HWC drop pending flips when a new flip is scheduled? -- Mir-de

Re: HWC Multimonitor work

2014-12-10 Thread Daniel van Vugt
Even displays of the same refresh rate are a problem (see in X/Compiz where all but one of your displays will tear). In Mir (the DRM platform) we've solved this with parallel rendering while waiting for the previous page flips. Because if you have multiple monitors at the same refresh rate, th