[Ves] VES on the Raspberry Pi

[John Donovan]

OK, I had assumed that there would be a standard install target that
could be run from the main makefile, but no matter, I've softlinked
the Install directory to a convenient place. But here's another thing
I'm not getting is that the CMakeLists.txt for the test don't appear
to use the ves-config.cmake, so for now I've just added the paths to
the CPLUS_INCLUDE_PATH env var. What's happening now is that it can't
find the VTK headers - again, another assumption is that the
superbuild would put the relevant files into the
CMakeExternals/Install/vtk-host directory, but that's empty - is there
an install step for VTK that I missed? The superbuild seems to build
VTK fine and the header it can't find is in
/home/pi/bin/VES/CMakeExternals/Source/vtk/Common/Core/vtkSmartPointer.h

-JD

On 5 July 2013 17:19, Pat Marion <pat.marion at kitware.com> wrote:
> There is an install target.  The superbuild installs VES locally in
> CMakeExternals/Install/ves-host.  Only headers and libs are installed, not
> the test programs.  The install tree is relocatable, you can copy the
> directories to someplace else.  Also a ves-config.cmake file is installed so
> that you can find and use VES using cmake from an external project.  For an
> example, see the CMakeLists.txt in Apps/Android/Kiwi/jni
>
> Pat
>
>
>
> On Fri, Jul 5, 2013 at 12:14 PM, John Donovan <mersey.viking at gmail.com>
> wrote:
>>
>> OK, that makes sense. Yes, I've made sure VES_USE_DESKTOP_GL was set
>> to OFF but I found BUILD_TESTING was set to ON in one macro. I had
>> assumed that the no desktop/build test combo build non-GLUT tests,
>> which was where my confusion lay, so I changed the macro and I've just
>> built the libraries successfully - it looks like there is no "install"
>> target though, so presumably I'll have to set up paths manually. I'll
>> have a go at the TestKiwiViewer in a while.
>>
>> Thanks for the hand-holding!
>>
>> -JD
>>
>> On 5 July 2013 14:52, Aashish Chaudhary <aashish.chaudhary at kitware.com>
>> wrote:
>> > On Fri, Jul 5, 2013 at 6:33 AM, John Donovan <mersey.viking at gmail.com>
>> > wrote:
>> >>
>> >> OK, the issue I seem to be getting is a conflict between the function
>> >> declarations in gl.h and those in GLES/gl2.h while compiling
>> >> TestDrawPlane.cpp because (free)GLUT is including the standard OpenGL
>> >> headers. I'm surprised GLUT is needed at all on mobile platforms, but
>> >> vesTestHelper.h uses it.
>> >
>> >
>> > No GLUT is not required on mobile platforms. We use it on desktop for
>> > testing.  Did you set VES_USE_DESKTOP_GL to OFF?  Another thing to try
>> > is
>> > set BUILD_TESTING to OFF (just to make sure you can compile core
>> > libraries
>> > on the system).
>> >>
>> >>
>> >> As GLUT includes GL/gl.h, I can't even put the GLES include
>> >> directories first, and surely I don't have to overwrite GL/gl.h with
>> >> the GLES version. Maybe my configuration is messed up, I'll carry on
>> >> poking around.
>> >>
>> >> -John
>> >>
>> >> On 5 July 2013 01:04, Aashish Chaudhary <aashish.chaudhary at kitware.com>
>> >> wrote:
>> >> > +1 It would be awesome to completely support Raspberry Pi
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > On Thu, Jul 4, 2013 at 4:43 PM, John Donovan
>> >> > <mersey.viking at gmail.com>
>> >> > wrote:
>> >> >>
>> >> >> Hi Pat,
>> >> >> Thanks for the quick reply. I'll get those files in and compiling
>> >> >> later. The project I am involved in is in its early stages, but I am
>> >> >> happy to hack on the VES source code to improve support for the Pi
>> >> >> and
>> >> >> submit pull requests or patches if that would be of help.
>> >> >>
>> >> >> Regards,
>> >> >> John
>> >> >>
>> >> >> On 4 July 2013 21:33, Pat Marion <pat.marion at kitware.com> wrote:
>> >> >> > Hi John,
>> >> >> >
>> >> >> > Luis and I got VES to run on raspberry pi without X11, but the
>> >> >> > work
>> >> >> > didn't
>> >> >> > get far enough to get full support added to the VES repository.
>> >> >> > Attached
>> >> >> > are two files that are work in progress, this is as far as I got.
>> >> >> > It
>> >> >> > works
>> >> >> > with basic mouse input, but it doesn't support keyboard input.  My
>> >> >> > next
>> >> >> > plan
>> >> >> > was going to look at SDL to see if I could get key and mouse
>> >> >> > events
>> >> >> > that
>> >> >> > way.
>> >> >> >
>> >> >> > To use the attached files, replace src/kiwi/vesKiwiTestHelper.h
>> >> >> > with
>> >> >> > the
>> >> >> > attached file.  Copy vesTestHelperRaspi.h into src/kiwi.  Compile,
>> >> >> > and
>> >> >> > hopefully if there are compile issues it's easy to fix.  Then
>> >> >> > launch
>> >> >> > TestKiwiViewer from the terminal before starting the graphical
>> >> >> > desktop
>> >> >> > environment with X11.  You should get a fullscreen render window
>> >> >> > that
>> >> >> > shows
>> >> >> > the spaceship dataset.  Clicking the mouse should exit.  I think
>> >> >> > everything
>> >> >> > should work once the keyboard/mouse input is implemented.
>> >> >> >
>> >> >> > Luis and I also ran VES using X11, but I don't remember if that
>> >> >> > was
>> >> >> > using
>> >> >> > GLUT or if it used the old VES tests that used only EGL and ES 2.0
>> >> >> > and
>> >> >> > got
>> >> >> > keyboard/mouse events directly from X11 apis instead of using
>> >> >> > GLUT.
>> >> >> > If
>> >> >> > you
>> >> >> > look at the git history of TestKiwiViewer.cpp, you'll find an
>> >> >> > older
>> >> >> > version
>> >> >> > before GLUT was used.
>> >> >> >
>> >> >> > Pat
>> >> >> >
>> >> >> >
>> >> >> > On Thu, Jul 4, 2013 at 4:09 PM, John Donovan
>> >> >> > <mersey.viking at gmail.com>
>> >> >> > wrote:
>> >> >> >>
>> >> >> >> Having just watched the webinar on ITK and VTK on the Pi, I
>> >> >> >> thought
>> >> >> >> I
>> >> >> >> would have a go at compiling VES on my Pi under the latest
>> >> >> >> Raspbian
>> >> >> >> using the Superbuild. It compiled fine, but I'm having problems
>> >> >> >> running the examples.
>> >> >> >>
>> >> >> >> the video says that VES bypasses X completely which is great, but
>> >> >> >> if
>> >> >> >> I
>> >> >> >> run TestKiwiViewer from the terminal (directly from the Pi, not
>> >> >> >> via
>> >> >> >> SSH), I get:
>> >> >> >> freeglut (./TestKiwiViewer): failed to open display ''
>> >> >> >>
>> >> >> >> Running from within X gives me:
>> >> >> >> freeglut (./TestKiwiViewer): OpenGL GLX extension not supported
>> >> >> >> by
>> >> >> >> display
>> >> >> >> ':0'
>> >> >> >>
>> >> >> >> When I was compiling VES it couldn't find GLUT, so I
>> >> >> >> apt-installed
>> >> >> >> freeglut3-dev, which I presume is the right dependency. Also I'm
>> >> >> >> using
>> >> >> >> the version of cmake from the repo - 2.8.9 rather than the very
>> >> >> >> latest
>> >> >> >> one as suggested in the ITK on the Raspberry Pi video.
>> >> >> >>
>> >> >> >> Is there a step I have missed?
>> >> >> >>
>> >> >> >> Regards,
>> >> >> >> John
>> >> >> >>
>> >> >> >> --
>> >> >> >> One of the advantages of being disorderly is that one is
>> >> >> >> constantly
>> >> >> >> making exciting discoveries. - AA Milne
>> >> >> >> _______________________________________________
>> >> >> >> Ves mailing list
>> >> >> >> Ves at public.kitware.com
>> >> >> >> http://public.kitware.com/cgi-bin/mailman/listinfo/ves
>> >> >> >
>> >> >> >
>> >> >>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> One of the advantages of being disorderly is that one is constantly
>> >> >> making exciting discoveries. - AA Milne
>> >> >> _______________________________________________
>> >> >> Ves mailing list
>> >> >> Ves at public.kitware.com
>> >> >> http://public.kitware.com/cgi-bin/mailman/listinfo/ves
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > | Aashish Chaudhary
>> >> > | R&D Engineer
>> >> > | Kitware Inc.
>> >> > | www.kitware.com
>> >>
>> >>
>> >>
>> >> --
>> >> One of the advantages of being disorderly is that one is constantly
>> >> making exciting discoveries. - AA Milne
>> >
>> >
>> >
>> >
>> > --
>> > | Aashish Chaudhary
>> > | R&D Engineer
>> > | Kitware Inc.
>> > | www.kitware.com
>>
>>
>>
>> --
>> One of the advantages of being disorderly is that one is constantly
>> making exciting discoveries. - AA Milne
>
>



-- 
One of the advantages of being disorderly is that one is constantly
making exciting discoveries. - AA Milne