[Buildroot] Configuring OpenGL

Patricia Holden pholden at nklabs.com
Tue Dec 22 20:05:33 UTC 2020


Hi Peter,

> Sorry, no Beagle/Ti expert... and no hardware to test myself, but there
was an
> Beagle/Ti software stack update recently suggested (and I believe already
> committed on buildroot git master), see [1]...

> Regards,
> Peter

> [1] http://lists.busybox.net/pipermail/buildroot/2020-December/298361.html

Thanks, I will take a look at what has been done!


On Tue, Dec 22, 2020 at 12:41 PM Peter Seiderer <ps.report at gmx.net> wrote:

> Hello Patricia,
>
> On Mon, 21 Dec 2020 19:04:05 -0500, Patricia Holden <pholden at nklabs.com>
> wrote:
>
> > Hello Peter,
> >
> > Thanks for the comprehensive info on how-to!  I do have a question on the
> > hardware info:
> >
> > > For example Raspberry Pi hardware there are two options, use
> > > rpi-userland (the old way/32-bit only) or mesa3d/v3d/vc4 (the
> > > new way 32-bit/64-bit)...
> >
> > My client's system is the TI Sitara board (Beaglebone-X15).  I tried
> > selecting ti-sgx-km, but it failed to build.  I think the version of
> Linux
> > supported by the board I'm using is outdated vs the version of Linux
> > expected to compile this option.  The dev-board we started with uses
> > Linux 4.9.147-ti-rt-r121.  We are using a local linux-custom version,
> but I
> > am afraid to migrate to a newer version of the kernel.  You know how it
> > goes with hardware vendors!  Any suggestions?
>
> Sorry, no Beagle/Ti expert... and no hardware to test myself, but there
> was an
> Beagle/Ti software stack update recently suggested (and I believe already
> committed on buildroot git master), see [1]...
>
> Regards,
> Peter
>
> [1] http://lists.busybox.net/pipermail/buildroot/2020-December/298361.html
>
> >
> > Thanks!
> > Patricia
> >
> >
> > On Mon, Dec 21, 2020 at 4:13 AM Peter Seiderer <ps.report at gmx.net>
> wrote:
> >
> > > Hello Patricia,
> > >
> > > On Sun, 20 Dec 2020 19:01:53 -0500, Patricia Holden <
> pholden at nklabs.com>
> > > wrote:
> > >
> > > > I know this topic has been visited a couple times, but I did not see
> my
> > > > particular problem in the threads.  I am trying to add a package that
> > > > requires QT5 components and Gstreamer.  In order to add QT5, openGL
> is
> > > > required.
> > > >
> > > > Buildroot version I am using is  buildroot-2020-02.
> > > >
> > > > I went into the menuconfig->Libraries->Graphics after looking at
> > > > package/Config.in to find out where I would enable it.  When I got
> into
> > > the
> > > > Graphics libraries, openGL was not an option anywhere in the list.
> > > >
> > > > My question is:  What do I need to do to enable opengl in the
> menuconfig
> > > so
> > > > that I can get my package built and into target?
> > >
> > > It depends on your platform and/or graphics hardware. In short your
> need
> > > an OpenGL provider.
> > >
> > > For the long/technical answer take a look at
> package/qt5/qt5base/Config.in:
> > >
> > >  138 comment "OpenGL support needs an OpenGL-capable backend"
> > >  139         depends on !BR2_PACKAGE_QT5_GL_AVAILABLE
> > >  140
> > >  141 config BR2_PACKAGE_QT5BASE_OPENGL
> > >  142         bool "OpenGL support"
> > >  143         depends on BR2_PACKAGE_QT5_GL_AVAILABLE
> > >  144         help
> > >  145           This option enables OpenGL support.
> > >
> > > and package/qt5/Config.in:
> > >
> > >   1 config BR2_PACKAGE_QT5_GL_AVAILABLE
> > >   2         bool
> > >   3         default y
> > >   4         depends on BR2_PACKAGE_HAS_LIBGL || BR2_PACKAGE_HAS_LIBGLES
> > >   5
> > >
> > > So grep for BR2_PACKAGE_HAS_LIBGL or BR2_PACKAGE_HAS_LIBGLES providers:
> > >
> > >         $ git grep "select BR2_PACKAGE_HAS_LIBGL"
> > > package/freescale-imx/gpu-amd-bin-mx51/Config.in:       select
> > > BR2_PACKAGE_HAS_LIBGLES
> > > package/freescale-imx/imx-gpu-viv/Config.in:    select
> > > BR2_PACKAGE_HAS_LIBGLES
> > > package/gcnano-binaries/Config.in:      select BR2_PACKAGE_HAS_LIBGLES
> > > package/mali-t76x/Config.in:    select BR2_PACKAGE_HAS_LIBGLES
> > > package/mesa3d/Config.in:       select BR2_PACKAGE_HAS_LIBGL
> > > package/mesa3d/Config.in:       select BR2_PACKAGE_HAS_LIBGLES
> > > package/nvidia-driver/Config.in:        select BR2_PACKAGE_HAS_LIBGL
> > > package/nvidia-driver/Config.in:        select BR2_PACKAGE_HAS_LIBGLES
> > > package/rpi-userland/Config.in: select BR2_PACKAGE_HAS_LIBGLES
> > > package/sunxi-mali-mainline/Config.in:  select BR2_PACKAGE_HAS_LIBGLES
> > > package/ti-gfx/Config.in:       select BR2_PACKAGE_HAS_LIBGLES
> > > package/ti-sgx-um/Config.in:    select BR2_PACKAGE_HAS_LIBGLES
> > >
> > >         $ git grep "select BR2_PACKAGE_HAS_LIBGLES" | cat
> > > package/freescale-imx/gpu-amd-bin-mx51/Config.in:       select
> > > BR2_PACKAGE_HAS_LIBGLES
> > > package/freescale-imx/imx-gpu-viv/Config.in:    select
> > > BR2_PACKAGE_HAS_LIBGLES
> > > package/gcnano-binaries/Config.in:      select BR2_PACKAGE_HAS_LIBGLES
> > > package/mali-t76x/Config.in:    select BR2_PACKAGE_HAS_LIBGLES
> > > package/mesa3d/Config.in:       select BR2_PACKAGE_HAS_LIBGLES
> > > package/nvidia-driver/Config.in:        select BR2_PACKAGE_HAS_LIBGLES
> > > package/rpi-userland/Config.in: select BR2_PACKAGE_HAS_LIBGLES
> > > package/sunxi-mali-mainline/Config.in:  select BR2_PACKAGE_HAS_LIBGLES
> > > package/ti-gfx/Config.in:       select BR2_PACKAGE_HAS_LIBGLES
> > > package/ti-sgx-um/Config.in:    select BR2_PACKAGE_HAS_LIBGLES
> > >
> > >
> > > For example Raspberry Pi hardware there are two options, use
> > > rpi-userland (the old way/32-bit only) or mesa3d/v3d/vc4 (the
> > > new way 32-bit/64-bit)...
> > >
> > > Regards,
> > > Peter
> > >
> > > >
> > > > Thanks!
> > > > Patricia
> > > >
> > >
> > >
> >
>
>

-- 
Patricia A. Holden
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