Re: [e-users] Question on emotion using HW-accelerated rendering
On Wed, 9 Jan 2013 19:19:53 +0530 Arvind R arvin...@gmail.com said: Hi all, My understanding is that emotion gets the video backend to render RGBA to the evas canvas that is then displayed by the ecore-evas backend. Correct? actually it gets the video decoder (xine/gstremer etc.) to decode to yuv... not rgb. this video coded decodes however it likes. might use software. might use hardware. not emotion's business really. :) the yuv data is then handed to the rendering engine. software of course software converts to rgba, scales and so on. gl will upload to a texture and use glsl shaders to do the conversion (gpu now does the work while it draws textures and scales) so... if you use gl - video is accelerated. only catch is the texture upload of yuv data. it depends how gl drivers implement this - with a cpu swizzle or a dedicated dma enigne. If so, would it be possible, for instance, using the xine backend to render directly to screen using whatever HW-accleration available to it, and have the evas-canvas as an 'underlay' to the video screen in order to trap events. This would mean modifying the emotion-xine module to be an interceptor in the xine pipeline instead of being a video_output driver. there is already code to do this with gstreamer. it's all broken and its also special-case. only allowed if you run e17 AND your video objects is unobscured etc. - and as i said.. its all broken at the moment. gl based video is far more flexible and all hw accelerated as per above. Feasible? Arvind R. -- 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-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users -- - Codito, ergo sum - I code, therefore I am -- The Rasterman (Carsten Haitzler)ras...@rasterman.com -- 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. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_123012 ___ enlightenment-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users
[e-users] Question on emotion using HW-accelerated rendering
Hi all, My understanding is that emotion gets the video backend to render RGBA to the evas canvas that is then displayed by the ecore-evas backend. Correct? If so, would it be possible, for instance, using the xine backend to render directly to screen using whatever HW-accleration available to it, and have the evas-canvas as an 'underlay' to the video screen in order to trap events. This would mean modifying the emotion-xine module to be an interceptor in the xine pipeline instead of being a video_output driver. Feasible? Arvind R. -- 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-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users
Re: [e-users] Question on emotion using HW-accelerated rendering
On Wed, Jan 9, 2013 at 11:49 AM, Arvind R arvin...@gmail.com wrote: Hi all, My understanding is that emotion gets the video backend to render RGBA to the evas canvas that is then displayed by the ecore-evas backend. Correct? If so, would it be possible, for instance, using the xine backend to render directly to screen using whatever HW-accleration available to it, and have the evas-canvas as an 'underlay' to the video screen in order to trap events. This would mean modifying the emotion-xine module to be an interceptor in the xine pipeline instead of being a video_output driver. Feasible? Arvind R. -- 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-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users -- Gustavo Sverzut Barbieri http://profusion.mobi embedded systems -- MSN: barbi...@gmail.com Skype: gsbarbieri Mobile: +55 (19) 9225-2202 -- 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-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users
Re: [e-users] Question on emotion using HW-accelerated rendering
On Wed, Jan 9, 2013 at 11:49 AM, Arvind R arvin...@gmail.com wrote: Hi all, My understanding is that emotion gets the video backend to render RGBA to the evas canvas that is then displayed by the ecore-evas backend. Correct? Actually it outputs to YUV as well, being converted to RGB by CPU (mmx/sse) or GPU (OpenGL). If so, would it be possible, for instance, using the xine backend to render directly to screen using whatever HW-accleration available to it, and have the evas-canvas as an 'underlay' to the video screen in order to trap events. This would mean modifying the emotion-xine module to be an interceptor in the xine pipeline instead of being a video_output driver. Feasible? Yes, Cedric did this for Gstreamer. There is support for that in Evas_Object_Image with Evas_Video_Surface that you can use to hook and change the underlying backend. At the Evas level it will draw an empty hole in the image region, leaving it to the top/below HW plane to draw it. -- Gustavo Sverzut Barbieri http://profusion.mobi embedded systems -- MSN: barbi...@gmail.com Skype: gsbarbieri Mobile: +55 (19) 9225-2202 -- 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-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users
