On Wed, 21 Nov 2012 15:33:18 -0500 yael aharon <yael.aharo...@gmail.com> said:
> Hello, > I need to grab a snapshot of a window, which was created using openGL. > evas_object_image_data_get returns NULL, since I am using a native surface > in the window, and I could not find an equivalent for glGetTexImage in > Evas_GL.h . > > Is there a way for me to get the image, either directly from the window, or > using evas_gl ? > thanks, Yael wel evas_object_image_data_get only works on image objects - not windows. if you used the native surface stuff - then there is no image "data" as the image now points to a a type of data that is native to the display system - eg a pixmap. "getting" image pixels then means you have to COPY them from the pixmap - and so it's always slow (and it often requires reads from video ram which if you have discrete gfx, can easily be 1/100th of the speed of a normal read from ram), so in general its is HIGHLY advised not to do this as this is an awesome point for performance loss. if you really must grab a window... ecore_x_image stuff is a low-level x specific api for grabbing image data (e17's shot module uses it), and it also has infra for doing conversion from screen format/depth to argb. > ------------------------------------------------------------------------------ > Monitor your physical, virtual and cloud infrastructure from a single > web console. Get in-depth insight into apps, servers, databases, vmware, > SAP, cloud infrastructure, etc. Download 30-day Free Trial. > Pricing starts from $795 for 25 servers or applications! > http://p.sf.net/sfu/zoho_dev2dev_nov > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) ras...@rasterman.com ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
