[meta-freescale] fsl framebuffer image ?

[David Hill]

On 2/5/14, Feb 5, 12:37 AM, Filip Piechocki wrote:
> Hi,
>
> I currently also needed an image with accelerated framebuffer (so I could run Qt5 eglfs on it) on wandboard-dual. I followed those instructions: http://wiki.wandboard.org/index.php/Building_Qt5_using_yocto_on_Wandboard , with some modifications. I suggest you to do:
> - add DISTRO_FEATURES_remove = "x11 wayland"
> - add IMAGE_INSTALL_append = " gpu-viv-bin-mx6q "
>
> Then I bitbaked core-image-minimal and it has libGAL, libEGL (and so on) in framebuffer version.

I did a bitbake qt4e-demo-image and did not get the accelerated images as you probably saw earlier.

Turns out that the needed libraries are in the build tree, but the script that picks which of the versions to install may not be correct.

You want these:
tmp/work/cortexa9hf-vfp-neon-mx6-poky-linux-gnueabi/gpu-viv-bin-mx6q/1_3.10.9-1.0.0-hfp-r0/gpu-viv-bin-mx6q-3.10.9-1.0.0-hfp/usr/lib/libEGL-fb.so
tmp/work/cortexa9hf-vfp-neon-mx6-poky-linux-gnueabi/gpu-viv-bin-mx6q/1_3.10.9-1.0.0-hfp-r0/gpu-viv-bin-mx6q-3.10.9-1.0.0-hfp/usr/lib/libGAL-fb.so
tmp/work/cortexa9hf-vfp-neon-mx6-poky-linux-gnueabi/gpu-viv-bin-mx6q/1_3.10.9-1.0.0-hfp-r0/gpu-viv-bin-mx6q-3.10.9-1.0.0-hfp/usr/lib/libVIVANTE-fb.so

It was suggested that I do:

# force the gpu-viv-bin-mx6q install script to fall through to framebuffer
DISTRO_FEATURES_remove = "x11 wayland"

bitbake qt4e-demo-image

When I did the qt4e-demo-image without the remove, I did get a libEGL.so, but it was libEGL-x11.so based on the checksum. Copying the correct libEGL-fb.so and libGAL.fb allowed me to render to the fb just fine using my test app.

If curious, the install script is sources/meta-fsl-arm/recipes-graphics/gpu-viv-bin-mx6q/gpu-viv-bin-mx6q.inc, which explained to me why the remove x11 might do something.

But I have not done a second build with the x11 remove quite yet (partly because I misunderstood the suggestion). Perhaps I will know by tomorrow (I have a slow bld machine - 11 plus hours per build).

Dave




-- 
David Hill <David.Hill at Oracle.com>
Java Embedded Development

"Unix is user-friendly. It's just very selective about who its friends are."