[meta-freescale] RFC regarding glimagesink

[Rogerio Nunes]

Thanks, Thomas.

Confirming:
fb* symbols present in libEGL-wl.so in
gpu-viv-wl-bin-mx6q-3.0.35-4.0.0, but *not* present in
gpu-viv-bin-mx6q-3.5.7-1.0.0-hfp.

On Tue, Jul 30, 2013 at 10:38 AM, Thomas Senyk
<thomas.senyk at pelagicore.com> wrote:
> http://download.ossystems.com.br/bsp/freescale/source/gpu-viv-wl-bin-mx6q-3.0.35-4.0.0.bin
>
> I haven't seen the 3.5.7 drivers yet.
> Maybe freescale removed the fb* symbols in that version?
>
> On Tuesday, 30 July, 2013 10:14:10 Rogerio Nunes wrote:
>> Just to make sure. What version of the GPU package are you guys using?
>>
>> I've just uncompressed gpu-viv-bin-mx6q-3.5.7-1.0.0-hfp, and I do not
>> see any fb* symbols in libEGL-wl.so:
>> objdump -x libEGL-wl.so | grep -i fb
>>
>> *EMPTY*
>>
>> On Tue, Jul 30, 2013 at 6:58 AM, Thomas Senyk
>>
>> <thomas.senyk at pelagicore.com> wrote:
>> > On Tuesday, 30 July, 2013 2:52:38 Abhijit Potnis wrote:
>> >> On Tue, Jul 30, 2013 at 2:06 AM, Thomas Senyk
>> >>
>> >> <thomas.senyk at pelagicore.com>wrote:
>> >> > On Monday, 29 July, 2013 16:06:17 Rogerio Nunes wrote:
>> >> > > On Mon, Jul 29, 2013 at 3:54 PM, Eric Nelson
>> >> > >
>> >> > > <eric.nelson at boundarydevices.com> wrote:
>> >> > > > Hi Rogerio,
>> >> > > >
>> >> > > > On 07/29/2013 12:29 PM, Rogerio Nunes wrote:
>> >> > > >> My apologies, Eric.
>> >> > > >>
>> >> > > >> I misread your email the first time.
>> >> > > >>
>> >> > > >> I'm trying a clean build now with master-next, but I'm having
>> >> >
>> >> > dependency
>> >> >
>> >> > > >> issues.
>> >> > > >> As soon as I fix this I'll look into glimagesink.
>> >> > > >
>> >> > > > I had some dependency issues as well, and I had to revert
>> >> > > > Abhijit's wayland patch (78936c1994cb2db102bd200123be976a7c051b98)
>> >> > > > to get past them.
>> >> > > >
>> >> > > > For some reason, with that patch, I was seeing the wayland version
>> >> > > > of some libraries, so configure failed on gst-plugins-gl.
>> >> > >
>> >> > > That's exactly the same issue I'm having here... no fb* symbols in
>> >> > > libEGL, so configure fails to link...
>> >> >
>> >> > I wonder if the fb* symbols should actually vanish?
>> >> >
>> >> > In a wl enabled version I've tested before I had both, wl_* and fb*
>> >> > symbols.
>> >> >
>> >> >   .. and IMO this is the right way, because it enabled you to have
>> >> >   opengl-
>> >> >
>> >> > based compositors and wayland-egl based clients with the same
>> >> > libraries.
>> >> >
>> >> >
>> >> > Also from a include/define perspective only if EGL_API_FB is set, it
>> >> > makes
>> >> > sense to set WL_EGL_PLATFORM.
>> >> > quote from eglvivante.h:
>> >> >
>> >> > ...
>> >> > #elif defined(LINUX) && defined(EGL_API_FB) && !defined(__APPLE__)
>> >> >
>> >> > #if defined(WL_EGL_PLATFORM)
>> >> > ...
>> >> >
>> >> >
>> >> > Does anyone know the reason why fb* symbols got removed from
>> >> > libEGL-wl.so?
>> >>
>> >> Freescale probides framebuffer based backend implementation for weston,
>> >> which run
>> >> with libEGL-wl.so. So this does equate to libEGL-wl.so having fb*
>> >> symbols.
>> >> I did check
>> >> that a few functions like `fbGetDisplayByIndex`  `fbGetDisplayGeometry'
>> >> `fbCreateWindow'
>> >> are supported over libEGL-wl.so
>> >>
>> >> I used the attached sample code to test fb on the imx6qsaberlite.
>> >>
>> >> arm-none-linux-gnueabi-g++ fb_test.c -o n900gles -lEGL-wl -lGAL-wl
>> >> -lgc_wayland_protocol -lwayland-client -lffi -lwayland-server
>> >>
>> >> Note the above never ending list of libs to link to. That where it gets
>> >> messy. GAL-wl lib throws in
>> >> dependencies over to Wayland client and server library and I ended up
>> >> adding them.
>> >
>> > I though I just tested this and didn't have fb* symbols ..I must have made
>> > a mistake!
>> > After checking again I see them with objdump -x
>> >
>> > So yes all the fb* symbols are present! :)
>> >
>> >> Regards,
>> >> Abhijit
>> >>
>> >> > Greet
>> >> > Thomas
>> >> >
>> >> > > Thanks.
>> >> > >
>> >> > > > Regards,
>> >> > > >
>> >> > > >
>> >> > > > Eric
>> >> > >
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