On Tuesday 15 May 2012 14:13:24 Aaron J. Seigo wrote: > how > does this resolve the window thumbnail issue? you can share GL textures > between processes. this is dependent on the OpenGL stack on the system (it > is not something OpenGL itself provides and it is done different on windows > than x.org; probably different again in wayland), but it works. in fact, we > found an example that does exactly this in zack's graphics dojo repo from > when he worked at trolltech (yes, trolltech .. before nokia). I am not sure whether that would work at all. What we have here are not normal textures but textures from pixmaps. I fear that this makes quite some difference especially concerning the damage events.
And I have a few ideas for thumbnails which would not be possible if it is in Plasma. I'll experiment with it after feature freeze, then I will share screenshots if the experiment works ;-) > > [1] this goes beyond crashes and extends to busy loops -> consider if the > compositing process locks up .. how does the user then go about fixing it? > can't see any input or windows -> compositor is still running, just not able > to paint ... For the last point I don't understand any difference to the situation we have right now. We are f*** up when the compositor locks up. Luckily I have not heard of it for several years :-) Btw in 4.10 I want to work on getting the compositor into an own thread to make it more unlikely that the window manager could lock up the compositor. Cheers Martin
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