I have to develop a GUI application for Beaglebone Black. As I'm using Gtk, it's unacceptably slow. Problem is that the SGX drivers don't work with X, so I have to access the frame buffer directly somehow.
Using Gtk is ideal but not necessary - my goal is to develop a GUI that makes use of hardware rendering, so whichever means to achieve that is welcome (within reasonable limits - getting too low-level wouldn't be practicable). What I've managed to accomplish so far: 1) Install Debian 9.1 on the SD card (http://debian.beagleboard.org/images/bone-debian-9.1-lxqt-armhf-2017-08-31-4gb.img.xz) 2) Install the SGX drivers: 2.1) Install a 4.4 LTS kernel as described here <https://elinux.org/BeagleBoardDebian#Mainline_.284.4.x_lts.29>: cd /opt/scripts/tools/ git pull sudo ./update_kernel.sh --bone-kernel --lts-4_4 sudo reboot 2.2) On a x86 linux environment (VM, whatever): git clone https://github.com/RobertCNelson/bb-kernel.git cd bb-kernel/ git checkout origin/am33x-v4.4 -b tmp-sgx ./sgx_create_package.sh 2.3) Copy ./deploy/GFX_5.01.01.02_es8.x.tar.gz to BBB. Once there… sudo tar xfv GFX_5.01.01.02_es8.x.tar.gz -C / cd /opt/gfxinstall/ sudo ./sgx-install.sh sudo reboot sudo apt-get install ti-sgx-es8-modules-`uname -r` sudo depmod -a `uname -r` sudo update-initramfs -uk `uname -r` 2.4) Load drivers manually cd /etc/init.d sudo ./sgx-startup.sh start 2.5) Verify that drivers are loaded correctly: lsmod | grep omaplfb I see that there's a number of libraries (Clutter, raylib, simple2d), some specifically targeting the Raspberry (should be pretty similar?), that support OpenGL ES, but they all fail to build for one reason or another. I suppose they all build some tailored version of SDL, so I tried building SDL from scratch without X11 support as detailed here <https://solarianprogrammer.com/2015/01/22/raspberry-pi-raspbian-getting-started-sdl-2/>, but then the examples compiled with this version complain that there is no available video device. Any thoughts? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/06d2b1c1-e610-451e-b14d-07318c3bddf9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
