Am Sat, 2 Apr 2016 12:31:09 +0200 schrieb Davide Andreoli: > 2016-04-02 1:31 GMT+02:00 Cedric BAIL <cedric.b...@free.fr>: > > > Hello, > > > > On Fri, Apr 1, 2016 at 3:19 PM, Andreas Volz <li...@brachttal.net> > > wrote: > > > I compiled e20 on Raspberry Pi 2 with latest Raspbian and it > > > works. I had to deactivate Composite Effects and switch to > > > Software renderer because it says there's no OpenGL support. > > > > The latests rasbian images for rpi2 include the experimental VideoCore > open source drivers :) > > https://www.raspberrypi.org/blog/another-new-raspbian-release/ > > I successfully built efl+gl on rpi2 using this driver and efl > applications run quite fast. There is still (at least) one issue i > faced: the driver seems > not able to load big textures (something like 1000x1000px or more), > and it slow down a lot when it fails. This for example make e20 > unusable because it cannot load the e background texture. > > I did not investigate further, maybe it is just a stupid problem. > > Please let me know if you do some progress in this area, I really > would like to see my emotion media center run smoothly on raspy :) > > > > > > > > Yes, RPi have still today a proprietary driver that is not following > > standard integration with X requiring a custom backend to make it > > work. I was hoping to see the open source driver sooner, but it is > > not there yet. We do have in master a backend, eglfs, which will > > support this kind of proprietary driver in the near future. > > Hopefully for 1.18. It is currently done around hwcomposer, but > > should also be able to support RPi and others. This backend will > > also allow the use of Enlightenment Wayland only mode. > > > > The RPi even has something close to hardware layer. So if someone > > does spend the time to optimize our backend for it, it should > > become quite usable. I say quite, because there will still be some > > major slowness. Even with wayland, there won't be support for > > Wayland EGL, so you will fallback to Wayland SHM. Wayland SHM > > allocate at the moment the buffer on the client side. This means > > that we can't give it a hardware memory pointer that the hardware > > layer infrastructure could reuse. So we will always need the CPU to > > do a useless memcpy from the client buffer to the hardware layer > > buffer... Making it less useful, except maybe for mouse cursor... > > So until there is an open source Open GL driver on the RPi, it will > > lack behind on what we can do with it. > > > > > The reason because I did this is that like to run the Raspi with a > > > 800x480 display and several fullscreen EFL applications which are > > > stacked one over the other and the above one with alpha and shaped > > > window. > > > > > > I use E20 only as layer manager and deactivated all other > > > elements. Maybe E20 is oversized for that reason. > > > > > > I experienced now that the CPU load of the E process is really > > > high even if nothing much happens. In idle the load is >10%, but > > > if I render some edje content in my application the E process > > > goes fast up >60-100% CPU. My application itself has very low CPU > > > usage. > > > > Any change on the screen, should trigger a software rendering of > > just the area that did change on screen. Note that shaped windows > > and alpha are usually more complex to handle and require more > > ressource to be drawn. With an anemic hardware like the RPi, it > > doesn't suprise me to much that this is that slow/ressource > > intensive.
I followed the tutorial and installed all components and restarted. It works everything as before. Glxgears doesn't feel as hw accelerated. In fullscreen very slow. Do I've to change any X configuration? > > > I tried to start my application with the default Gtk based window > > > manager, but it's strange. As long as I activate alpha and shaped > > > window support in my application the application is somehow > > > broken and hangs in the beginning. I didn't yet trace it out > > > where it hangs. > > > > > > Do you have any ideas or explanations? > > > > Not for the last problem. I'll for sure debug some more and report here. regards Andreas -- Technical Blog <http://andreasvolz.wordpress.com/> ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140 _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
