Hi, We're using the same hw and we have performance problems too, specially with blending functions. Apps on top of GTK+ over DirectFB are slow because of it.
What it's different in our system is that we're running a driver for the stlinux 2.3ear, without any stapi driver. We've had problems while trying to use the stapi framebuffer driver in stlinux 2.2. How did you manage to use the stapi driver for DirectFB? Do you have any special configuration? The ST people told us that the official stapi 2.2 framebuffer driver doesn't support DirectFB... quite disappointing... Btw, you can run df_dok to have more accurate benchmarks, tomorrow I can send you my benchmarks so we can double-check if the problem is the driver :) Regards, -- Pedro Aguilar On Wed, 2008-01-02 at 16:40 +0100, Alexandre Franke wrote: > Hi, > > We are using STi7109 from ST Microelectronics with the STAPI M6 DirectFB > driver. > According to their documentation, the 2d blitter should be able to blit at > 200MPixels/sec. We enable hardware acceleration and have some performance > issue. > We have a small test program that shows the time taken by several functions > and > it appears that Blit is particularly slow, taking a bit more than 3 seconds > for > a 2MPixels image (1920*1080), which is roughly 300 times slower than expected. > We also tried with hardware acceleration disabled and it takes nearly half the > time it takes with acceleration enabled (alright, it is faster without > hardware acceleration than with it). > Enclosed are the source code for our tests and the output with results, with > and > without acceleration. > As you can see, the other functions do not seem as slow as Blit. > Could you please enlighten us on this matter? > > Greetings > > _______________________________________________ > directfb-users mailing list > [email protected] > http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
