On Mon, 14 Jan 2013 12:19:45 -0600 Nick Reed <[email protected]> said: > Using EFL 1.7.5 with e17 release on a TI8148 (Cortex A8 + SGX530) platform > with DRI, I run into a couple issues with OpenGL compositing enabled. > > Running at 1024x768, with "Texture from pixmap" enabled on the composite > engine for OpenGL, I see a seam down the center of the screen for full screen > apps where the left half is presented before the right half. Objects moving > up and down the screen on the midline thus appear disjointed. I can work > around this by disabling Texture from Pixmap, but was hoping to get some > feedback, and/or assist in debugging this issue.
this smells like a gl pipeline synchronisation issue. swaps may be implemented as copies in dri/drm and being dune as a 2-pass copy from backbuffer to pixmap. there is not a lot evas/e can do here - dri/drm has to ensure an atomic swap here :/ i am guessing this is a gl using app? if its not.. then it could also be the nature of how the app is updating too and copying/rendering updates region by region... > The more pressing issue is that newly created windows occasionally show > framebuffer garbage as soon as they are mapped, before the first render. > This happens both with client applications, and with the "GLViewSimple" > Elementary test. After clicking "GLViewSimple," I see the window appear with > garbage for roughly .25 seconds, before rendering begins. Any suggestions on > how I could debug this issue would be appreciated. well there is a pixmap.. and the pixmap is initialized with memory garbage... most likley (common on allocation of pixmaps that they inherit what was there before)... and until the app renders its first frame to fill it.. its garbage. :) the slower the system the more noticeable this kind of stuff is. > Thanks, > > Nick Reed > [email protected] > > > > ------------------------------------------------------------------------------ > Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, > MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current > with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft > MVPs and experts. SALE $99.99 this month only -- learn more at: > http://p.sf.net/sfu/learnmore_122412 > _______________________________________________ > enlightenment-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) [email protected] ------------------------------------------------------------------------------ Master Java SE, Java EE, Eclipse, Spring, Hibernate, JavaScript, jQuery and much more. Keep your Java skills current with LearnJavaNow - 200+ hours of step-by-step video tutorials by Java experts. SALE $49.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122612 _______________________________________________ enlightenment-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
