OpenCPN Runs on Embedded ARM

[mattkab]

Personally, I don't worry about it and always run apt-get upgrade and update before installing the required components and building OpenCPN. I consider it good practice when building out a system on any platform.

I doubt it would be the cause of the main issues being talked about here, but...

[akopac]

I think I've seen this error before, but when I run Make GL I get

Linking C shared library ../lib/libGL.so.1
/usr/bin/ld: cannot find -lEGL
collect2: ld returned 1 exit status
make[3]: *** [lib/libGL.so.1] Error 1
make[2]: *** [src/CMakeFiles/GL.dir/all] Error 2
make[1]: *** [src/CMakeFiles/GL.dir/rule] Error 2
make: *** [GL] Error 2

[NahanniV]

Originally Posted by nohal

.....
BTW, as we near the stable 4.0 release, did any of you try the official ARM packages (for both the core program and plugins) on your boards?

Pavel

I would like to try the official program and plugins, but there is some problem:

cubie@Cubian:~$ sudo apt-get install opencpn
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package opencpn is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'opencpn' has no installation candidate
cubie@Cubian:~$

I am guessing that my particular OS is not supported ?

cubie@Cubian:~$ cat /etc/*-release
PRETTY_NAME="Debian GNU/Linux 7 (wheezy)"
NAME="Debian GNU/Linux"
VERSION_ID="7"
VERSION="7 (wheezy)"
ID=debian
ANSI_COLOR="1;31"
HOME_URL="http://www.debian.org/"
SUPPORT_URL="http://www.debian.org/support/"
BUG_REPORT_URL="http://bugs.debian.org/"
cubie@Cubian:~$ 
cubie@Cubian:~$ uname -mrs
Linux 3.4.79-sun7i armv7l
cubie@Cubian:~$

?

Cheers,
JM.

[nohal]

JM...
Did you add the PPA to your system correctly? The oldest ARMHF supported Ubuntu is Precise, so on your Debian Wheezy, it is the version to try.

Pavel

[akopac]

I got the same error NahanniV got. I'm using the correct cubian. I also tried the install script on Opencpn for cubieboard2 and got previously stated error. The ppa I used was opencpn ppa: opencpn/opencpn.

Will you still have to presetup GL, GLShim... before installing?

[NahanniV]

Originally Posted by nohal

JM...
Did you add the PPA to your system correctly? The oldest ARMHF supported Ubuntu is Precise, so on your Debian Wheezy, it is the version to try.

Pavel

OK, I tried to point etc\apt\sources.list to Precise1 (see screenshot)

is precise1 correct ?

Still get the same result.

Thanks for your help,

JM.

[nohal]

JM...
no, it is not correct, the line should be

deb http://ppa.launchpad.net/nohal/opencpn/ubuntu precise main

If unsure, read "Adding this PPA to your system" at https://launchpad.net/~nohal/+archive/ubuntu/opencpn

You can also just download the deb packages and install using manually using something like

dpkg -i opencpn_3.3.2503-0~precise1_armhf.deb

Pavel

[NahanniV]

Originally Posted by nohal

JM...
no, it is not correct, the line should be

deb http://ppa.launchpad.net/nohal/opencpn/ubuntu precise main

If unsure, read "Adding this PPA to your system" at https://launchpad.net/~nohal/+archive/ubuntu/opencpn

You can also just download the deb packages and install using manually using something like

dpkg -i opencpn_3.3.2503-0~precise1_armhf.deb

Pavel

cubie@Cubian:~$ sudo dpkg -i Downloads/opencpn_3.3.2503-0~precise1_armhf.deb
Selecting previously unselected package opencpn.
(Reading database ... 91249 files and directories currently installed.)
Unpacking opencpn (from .../opencpn_3.3.2503-0~precise1_armhf.deb) ...
dpkg: dependency problems prevent configuration of opencpn:
 opencpn depends on libc6 (>= 2.15-0ubuntu8); however:
  Version of libc6:armhf on system is 2.13-38+deb7u6.
 opencpn depends on wx2.8-i18n; however:
  Package wx2.8-i18n is not installed.
 opencpn depends on opencpn-tcdata; however:
  Package opencpn-tcdata is not installed.
 opencpn depends on opencpn-gshhs-low; however:
  Package opencpn-gshhs-low is not installed.

dpkg: error processing opencpn (--install):
 dependency problems - leaving unconfigured
Processing triggers for desktop-file-utils ...
Processing triggers for hicolor-icon-theme ...
Errors were encountered while processing:
 opencpn
cubie@Cubian:~$

I guess I'll have to go back to building it ?

Will I have similar problems with the plugins ?

Thanks for your help.

JM.

[nohal]

JM...
The only real problem there is the glibc version, the rest just needs you to install the missing packages.
BTW, I'm pretty surprised Cubian is Wheezy- and not Jessie-based... Can it be dist-upgraded, anybody tried it yet?

Pavel

[NahanniV]

Originally Posted by nohal

JM...
The only real problem there is the glibc version, the rest just needs you to install the missing packages.
BTW, I'm pretty surprised Cubian is Wheezy- and not Jessie-based... Can it be dist-upgraded, anybody tried it yet?

Pavel

Would these issues also cause problems when I build on the target system ?
The builds sorta work but have some problems.

Cheers,
JM.

[nohal]

No, the glibc dependency will be fine then. There is also no problem to be expected with the official plugin packages - I build them on a Wheezy virtual system.

Pavel


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[seandepagnier]

I hope to package glshim support directly into opencpn so it can link directly with libGLESv1.so and avoid building glshim as a separate step.

Can anyone see any objection? Are there any cases of arm devices which support full opengl acceleration? In this case we might need something more complex to dynamically switch to make the package work in both cases.

[NahanniV]

Originally Posted by boat_alexandra

I hope to package glshim support directly into opencpn so it can link directly with libGLESv1.so and avoid building glshim as a separate step.

Can anyone see any objection? Are there any cases of arm devices which support full opengl acceleration? In this case we might need something more complex to dynamically switch to make the package work in both cases.

Well it would simplify things a bit. Eventually there may be opengl support on an ARM based device.

BUT, more importantly, there seem to be some problems with using OpenCPN and your GLShim on ARM:

When OpenCPN starts up with OpenGL enabled there are a bunch of errors generated:

(opencpn:7343): Gdk-CRITICAL **: IA__gdk_colormap_new: assertion `GDK_IS_VISUAL (visual)' failed

(opencpn:7343): Gtk-CRITICAL **: IA__gtk_widget_set_colormap: assertion `GDK_IS_COLORMAP (colormap)' failed

(opencpn:7343): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
glXGetProcAddress: glGenFramebuffers not found.
glXGetProcAddress: glGetCompressedTexImage not found.

It seems to work after that, so perhaps those are not too important.
Are those procedures needed ?

But then during panning and zooming I get:

ERROR: EGL Error detected: EGL_BAD_ALLOC (0x3003)

Which seems to screw things up; Leaving blank colored areas on the screen.

Sorry for all the questions, but you seem to be the only one who really knows this stuff.

Thanks for your great work so far.

Cheers,
JM.

[NahanniV]

In addition to the OpenGL related errors. There is a a warning that is generated several times when displaying the configuration tool:

(opencpn:23799): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -5 and height 15

Everything seems to function properly, but this must indicate some problem.

Cheers,
JM.

[nohal]

JM...
This is harmless, you will see it when you run pretty much any application using GTK.

Pavel