Re: [Discuss-gnuradio] gr-fosphor : New RTSA-like visualization block for GNURadio using GPU acceleration

[Alexandru Csete]

On Sat, Oct 26, 2013 at 10:23 PM, Sylvain Munaut <address@hidden> wrote:
>
> Hi,
>
>
> As some of you know, beginning of this month I presented a new
> GNURadio block I wrote that implements a RTSA like spectrum
> visualization of the spectrum similar to those found on R&S / Agilent
> / Tek equipement.
>
> ...
>
> It would be very helpful if you could report success / failure so we
> can try to list what hardware is out there and which works / which
> doesn't.

Hi Sylvain,

I gave it a try this morning but didn't work on my acer laptop with
NVIDIA GeForce GT 330M
Driver version: 319.32 on 64 bit Xubuntu 13.10

It's not quite clear to me how to get opencl installed... I installed
a package called nvidia-opencl-dev and opencl-headers but didn't see
anything else in the package manager.


address@hidden:~$ osmocom_fft -a rtl=0 -s 1500000 -F
linux; GNU C++ version 4.8.1; Boost_105300; UHD_003.005.004-140-gfb32ed16

gr-osmosdr v0.1.0-35-gc21b09ae (0.1.1git) gnuradio 3.7.2git-123-g0ded5889
built-in source types: file osmosdr fcd rtl rtl_tcp uhd hackrf netsdr
Using device #0 Realtek RTL2838UHIDIR SN: 00000013
Detached kernel driver
Found Rafael Micro R820T tuner
Exact sample rate is: 1500000.014901 Hz
Traceback (most recent call last):
  File "/home/alc/sdr/pybombs/runtime/bin/osmocom_fft", line 512, in <module>
    main ()
  File "/home/alc/sdr/pybombs/runtime/bin/osmocom_fft", line 508, in main
    app = stdgui2.stdapp(app_top_block, "osmocom Spectrum Browser", nstatus=1)
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py",
line 47, in __init__
    wx.App.__init__ (self, redirect=False)
  File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py",
line 7981, in __init__
    self._BootstrapApp()
  File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py",
line 7555, in _BootstrapApp
    return _core_.PyApp__BootstrapApp(*args, **kwargs)
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py",
line 51, in OnInit
    self._max_noutput_items)
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py",
line 73, in __init__
    self.panel = stdpanel (self, self, top_block_maker, max_nouts)
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py",
line 96, in __init__
    self.top_block = top_block_maker (frame, self, vbox, sys.argv)
  File "/home/alc/sdr/pybombs/runtime/bin/osmocom_fft", line 178, in __init__
    from gnuradio import fosphor
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/fosphor/__init__.py",
line 45, in <module>
    from fosphor_swig import *
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/fosphor/fosphor_swig.py",
line 26, in <module>
    _fosphor_swig = swig_import_helper()
  File 
"/home/alc/sdr/pybombs/runtime/lib/python2.7/dist-packages/gnuradio/fosphor/fosphor_swig.py",
line 22, in swig_import_helper
    _mod = imp.load_module('_fosphor_swig', fp, pathname, description)
ImportError: 
/home/alc/sdr/pybombs/runtime/lib/libgnuradio-fosphor-3.7.0git.so.0.0.0:
undefined symbol: clCreateFromGLTexture
address@hidden:~$


> You will also needs a few dependencies such as freetype2 and glfw3.
> For the latter, make sure to use version 3.x and to build it wit
> -DBUILD_SHARED_LIBS=true

I have not installed glfw3 as it appears to be an optional component,
is that true?


Alex