Building Qt-Applications for BeagleBoard

GoogleGroups
1

Hi,

I want to make applications for beagleboard with Qt-embedded.

I have:

1.Angstrom console-image on the beagleboard
2. installed qt-embedded with "opkg install qt-embedded"
3. when i start "qt-demo -qws" it works fine!
4. then i downloaded the qt-embedded file from Qt
5. i changed the qmake file for my toolchain
6. and used "./configure -embedded arm -xplatform qws/linux-arm-g++ -
qt-gfx-linuxfb -qt-gfx-transformed -nomake examples -nomake demos"
to compile it. --> it compiles with no problems!
7. Then i write a simple hello world application and transfered it to
the beagleboard
8. when i start "./hello -qws" it shows me something like "X-Server
not found"

what have i done wrong?

Regards

Michael

2

Is nobody using qt for BeagleBoard?
When not?
What i should use for graphical application on framebuffer? Clutter?

Regards

Michael

3

Is nobody using qt for BeagleBoard?
When not?

there is. i am using it.

What i should use for graphical application on framebuffer? Clutter?

i think qt is fine.

4

I'm using Qt on BeagleBoard.

Start from here:
http://groups.google.com/group/beagleboard/browse_thread/thread/06354a2c618365d6/5fb6ba77850ba65b?lnk=raot&pli=1

You can use Clutter too for your graphical application.

Regards,
Amit Pundir

5

Hi,

I want to make applications for beagleboard with Qt-embedded.

I have:

1.Angstrom console-image on the beagleboard
2. installed qt-embedded with "opkg install qt-embedded"
3. when i start "qt-demo -qws" it works fine!
4. then i downloaded the qt-embedded file from Qt
5. i changed the qmake file for my toolchain
6. and used "./configure -embedded arm -xplatform qws/linux-arm-g++ -
qt-gfx-linuxfb -qt-gfx-transformed -nomake examples -nomake demos"
to compile it. --> it compiles with no problems!
7. Then i write a simple hello world application and transfered it to
the beagleboard
8. when i start "./hello -qws" it shows me something like "X-Server
not found"

what have i done wrong?

Try to use 'meta-toolchain-qte' found in .dev branch. It works for me.

6

Hi,

We are developing software using Qt on Beagle for several of our customers.
Although they will probably not use the actual beagleboard for their volume
shipments, it makes a good development platform while they complete their
hardware design.

Mark

7

In the thread below, please consider the following change:

(6) Create/modify /etc/powervr.ini and not powerver.ini to include the lines below:

[default]
WindowSystem=libpvrQWSWSEGL.so

It seems that with the qt-e, the hellogl_es demo works for GLES1.1 and 2.0, but applications using QGLWidget like 2dpainting found under examples/opengl [http://doc.trolltech.com/4.4/opengl-2dpainting.html] does not work and throws an error.

Please let me know if anybody got it working.

Also, did anyone try out the openvg extension included in latest qt-e 4.6 [http://labs.trolltech.com/blogs/2009/06/24/openvg-support-in-qt-46/]

Regards,
Varun Shah

8

Hello,

Did anyone get the qt4-x11 applications for opengles 2.0 like hello_gles working on Beagleboard? If so can you please list the steps?

Regards,
Varun

9

It seems that with the qt-e, the hellogl_es demo works for GLES1.1 and 2.0, but applications using QGLWidget like 2dpainting found under examples/opengl [http://doc.trolltech.com/4.4/opengl-2dpainting.html\] does not work and throws an error.

Please let me know if anybody got it working.

I have not tried to run it but will let you know if it works.

Also, did anyone try out the openvg extension included in latest qt-e 4.6 [http://labs.trolltech.com/blogs/2009/06/24/openvg-support-in-qt-46/\]

I tried to run openvg example (qt/examples/openvg/star) on Beagle but
it failed because we need an updated or a separate screen driver
plugin for PVR OpenVG implementation. Also -graphicssystem switch
doesn't work for QWS.

Regards,
Amit Pundir

10

Hello Amit,
I am trying to build QT libraries with OpenVG support for beagleboard.
I am using the following configure options:
./configure -prefix /opt/qt-embedded/ -embedded arm -little-endian -
fast -D QT_NO_QWS_CURSOR -D QT_QWS_CLIENTBLIT -depths 16,24,32 -
xplatform qws/linux-omap3-g++ -arch arm -no-xinerama -no-xkb -openvg -
plugin-gfx-powervr -qt-mouse-pc -no-openssl -no-cups -no-phonon -no-
largefile -no-qt3support -no-xmlpatterns -no-webkit -no-stl

But getting the following error:
                 from pvreglscreenplugin.cpp:42:
/home/omap3/OMAP35x_Graphics_SDK_new/GFX_Linux_SDK/OVG/SDKPackage/
Builds/OVG/Include/GLES/egl.h:186: error: expected initializer before
'eglGetError'
/home/omap3/OMAP35x_Graphics_SDK_new/GFX_Linux_SDK/OVG/SDKPackage/
Builds/OVG/Include/GLES/egl.h:188: error: expected initializer before
'eglGetDisplay'
/home/omap3/OMAP35x_Graphics_SDK_new/GFX_Linux_SDK/OVG/SDKPackage/
Builds/OVG/Include/GLES/egl.h:189: error: expected initializer before
'eglInitialize'
/home/omap3/OMAP35x_Graphics_SDK_new/GFX_Linux_SDK/OVG/SDKPackage/
Builds/OVG/Include/GLES/egl.h:190: error: expected initializer before
'eglTerminate'
/home/omap3/OMAP35x_Graphics_SDK_new/GFX_Linux_SDK/OVG/SDKPackage/
Builds/OVG/Include/GLES/egl.h:192: error: expected initializer before
'eglQueryString'

I guess you were able to sucessfully build the QT libraries with the
OpenVG support.
Also,i am using the latest QT source from the http://qt.gitorious.org/qt.
Thanks for the concern and highly appreciate your help.

Thanks and Regards,
Dharshan

11

Hi Dharshan,

Yes I'm able to build Qt with OpenVG and OpenGLES-2.0 support. But I
did not get the error which you are getting.

I configured Qt with following options:

./configure -embedded arm -xplatform qws/linux-arm-g++ -prefix
/home/amit/beagle_rootfs/usr/local/qt_4.6 -confirm-license -D
QT_QWS_CLIENTBLIT -D QT_NO_QWS_CURSOR -opensource -opengl es2
-plugin-gfx-powervr -openvg -debug -depths 16,24,32 -qt-mouse-pc
-no-openssl -no-cups -no-qt3support -no-phonon -no-largefile
-no-xinerama -no-xkb -no-webkit -no-svg

Also make sure you have set the following paths correctly in your
qws/<target>/qmake.conf:

QMAKE_INCDIR =
QMAKE_LIBDIR =
QMAKE_INCDIR_OPENGL =
QMAKE_LIBDIR_OPENGL =
QMAKE_INCDIR_EGL =
QMAKE_LIBDIR_EGL =
QMAKE_INCDIR_OPENVG =
QMAKE_LIBDIR_OPENVG =

QMAKE_LIBS_EGL = -lEGL -lIMGegl -lsrv_um
QMAKE_LIBS_OPENGL = -lEGL -lGLESv2 -lIMGegl -lsrv_um
QMAKE_LIBS_OPENGL_QT = -lEGL -lGLESv2 -lIMGegl -lsrv_um
QMAKE_LIBS_OPENVG = -lEGL -lOpenVG -lOpenVGU -lIMGegl -lsrv_um

Regards
Amit Pundir

12

Hello Amith,

I managed to compile QT with openvg support,
Before running the star example,i set the powervr screen driver
export QWS_DISPLAY="powervr"
Than when i run the OpenVG example star using the command

./star -qws -graphicssystem openvg
or ./star -qws

I get an error has:
powervr: driver not found
Aborted.

Are you getting the same error or were you able to run the example.

Thanks and Regards,
Dharshan

13

Hi Michael,
I think that you should try with an Angstrom image with X11 support like “x11-image” instead of “console-image”. I didn’t do it myself but it could be a good test.

Regards,
Alex.

14

Have you tried Qt/Embedded SDK from OpenEmbedded for building your own
Qt/E apps?