Merge branch 'master' into turbo

1 files changed, 298 insertions, 0 deletions

diff --git a/gr-qtgui/lib/qtgui_sink_c.cc b/gr-qtgui/lib/qtgui_sink_c.cc
new file mode 100644
index 000000000..7b40dd01d
--- /dev/null
+++ b/gr-qtgui/lib/qtgui_sink_c.cc
@@ -0,0 +1,298 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008,2009,2010,2011 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <qtgui_sink_c.h>
+#include <gr_io_signature.h>
+#include <string.h>
+
+#include <QTimer>
+
+qtgui_sink_c_sptr
+qtgui_make_sink_c (int fftsize, int wintype,
+		   double fc, double bw,
+		   const std::string &name,
+		   bool plotfreq, bool plotwaterfall,
+		   bool plottime, bool plotconst,
+		   QWidget *parent)
+{
+  return gnuradio::get_initial_sptr(new qtgui_sink_c (fftsize, wintype,
+						      fc, bw, name,
+						      plotfreq, plotwaterfall,
+						      plottime, plotconst,
+						      parent));
+}
+
+qtgui_sink_c::qtgui_sink_c (int fftsize, int wintype,
+			    double fc, double bw,
+			    const std::string &name,
+			    bool plotfreq, bool plotwaterfall,
+			    bool plottime, bool plotconst,
+			    QWidget *parent)
+  : gr_block ("sink_c",
+	      gr_make_io_signature (1, -1, sizeof(gr_complex)),
+	      gr_make_io_signature (0, 0, 0)),
+    d_fftsize(fftsize),
+    d_wintype((gr_firdes::win_type)(wintype)), 
+    d_center_freq(fc), d_bandwidth(bw), d_name(name),
+    d_plotfreq(plotfreq), d_plotwaterfall(plotwaterfall),
+    d_plottime(plottime), d_plotconst(plotconst),
+    d_parent(parent)
+{
+  d_main_gui = NULL;
+
+  // Perform fftshift operation;
+  // this is usually desired when plotting
+  d_shift = true;  
+
+  d_fft = new gri_fft_complex (d_fftsize, true);
+
+  d_index = 0;
+  d_residbuf = new gr_complex[d_fftsize];
+
+  buildwindow();
+
+  initialize();
+}
+
+qtgui_sink_c::~qtgui_sink_c()
+{
+  delete d_main_gui;
+  delete [] d_residbuf;
+  delete d_fft;
+}
+
+void
+qtgui_sink_c::forecast(int noutput_items, gr_vector_int &ninput_items_required)
+{
+  unsigned int ninputs = ninput_items_required.size();
+  for (unsigned int i = 0; i < ninputs; i++) {
+    ninput_items_required[i] = std::min(d_fftsize, 8191);
+  }
+}
+
+void
+qtgui_sink_c::initialize()
+{
+  if(qApp != NULL) {
+    d_qApplication = qApp;
+  }
+  else {
+    int argc=0;
+    char **argv = NULL;
+    d_qApplication = new QApplication(argc, argv);
+  }
+
+  if(d_center_freq < 0) {
+    throw std::runtime_error("qtgui_sink_c: Received bad center frequency.\n");
+  }
+
+  uint64_t maxBufferSize = 32768;
+  d_main_gui = new SpectrumGUIClass(maxBufferSize, d_fftsize, 
+				    d_center_freq, 
+				    -d_bandwidth/2.0, 
+				    d_bandwidth/2.0);
+
+  d_main_gui->SetDisplayTitle(d_name);
+  d_main_gui->SetFFTSize(d_fftsize);
+  d_main_gui->SetWindowType((int)d_wintype);
+
+  d_main_gui->OpenSpectrumWindow(d_parent, 
+				 d_plotfreq, d_plotwaterfall,
+				 d_plottime, d_plotconst);
+
+  // initialize update time to 10 times a second
+  set_update_time(0.1);
+}
+
+
+void
+qtgui_sink_c::exec_()
+{
+  d_qApplication->exec();
+}
+
+QWidget*
+qtgui_sink_c::qwidget()
+{
+  return d_main_gui->qwidget();
+}
+
+PyObject*
+qtgui_sink_c::pyqwidget()
+{
+  PyObject *w = PyLong_FromVoidPtr((void*)d_main_gui->qwidget());
+  PyObject *retarg = Py_BuildValue("N", w);
+  return retarg;
+}
+
+void
+qtgui_sink_c::set_frequency_range(const double centerfreq, 
+				  const double bandwidth)
+{
+  d_center_freq = centerfreq;
+  d_bandwidth = bandwidth;
+  d_main_gui->SetFrequencyRange(d_center_freq, 
+				-d_bandwidth/2.0,
+				d_bandwidth/2.0);
+}
+
+void
+qtgui_sink_c::set_time_domain_axis(double min, double max)
+{
+  d_main_gui->SetTimeDomainAxis(min, max);
+}
+
+void
+qtgui_sink_c::set_constellation_axis(double xmin, double xmax,
+				     double ymin, double ymax)
+{
+  d_main_gui->SetConstellationAxis(xmin, xmax, ymin, ymax);
+}
+
+void 
+qtgui_sink_c::set_constellation_pen_size(int size)
+{
+  d_main_gui->SetConstellationPenSize(size);
+}
+
+
+void
+qtgui_sink_c::set_frequency_axis(double min, double max)
+{
+  d_main_gui->SetFrequencyAxis(min, max);
+}
+
+void
+qtgui_sink_c::set_update_time(double t)
+{
+  d_update_time = t;
+  d_main_gui->SetUpdateTime(d_update_time);
+}
+
+void
+qtgui_sink_c::fft(const gr_complex *data_in, int size)
+{
+  if (d_window.size()) {
+    gr_complex *dst = d_fft->get_inbuf();
+    int i;
+    for (i = 0; i < size; i++)		// apply window
+      dst[i] = data_in[i] * d_window[i];
+  }
+  else {
+    memcpy (d_fft->get_inbuf(), data_in, sizeof(gr_complex)*size);
+  }
+
+  d_fft->execute ();     // compute the fft
+}
+
+void 
+qtgui_sink_c::windowreset()
+{
+  gr_firdes::win_type newwintype = (gr_firdes::win_type)d_main_gui->GetWindowType();  
+  if(d_wintype != newwintype) {
+    d_wintype = newwintype;
+    buildwindow();
+  }
+}
+
+void
+qtgui_sink_c::buildwindow()
+{
+  d_window.clear();
+  if(d_wintype != 0) {
+    d_window = gr_firdes::window(d_wintype, d_fftsize, 6.76);
+  }
+}
+
+void
+qtgui_sink_c::fftresize()
+{
+  int newfftsize = d_main_gui->GetFFTSize();
+
+  if(newfftsize != d_fftsize) {
+
+    // Resize residbuf and replace data
+    delete [] d_residbuf;
+    d_residbuf = new gr_complex[newfftsize];
+
+    // Set new fft size and reset buffer index 
+    // (throws away any currently held data, but who cares?) 
+    d_fftsize = newfftsize;
+    d_index = 0;
+    
+    // Reset window to reflect new size
+    buildwindow();
+
+    // Reset FFTW plan for new size
+    delete d_fft;
+    d_fft = new gri_fft_complex (d_fftsize, true);
+  }
+}
+
+
+int
+qtgui_sink_c::general_work (int noutput_items,
+			    gr_vector_int &ninput_items,
+			    gr_vector_const_void_star &input_items,
+			    gr_vector_void_star &output_items)
+{
+  int j=0;
+  const gr_complex *in = (const gr_complex*)input_items[0];
+
+  // Update the FFT size from the application
+  fftresize();
+  windowreset();
+
+  for(int i=0; i < noutput_items; i+=d_fftsize) {
+    unsigned int datasize = noutput_items - i;
+    unsigned int resid = d_fftsize-d_index;
+
+    // If we have enough input for one full FFT, do it
+    if(datasize >= resid) {
+      const timespec currentTime = get_highres_clock();
+      
+      // Fill up residbuf with d_fftsize number of items
+      memcpy(d_residbuf+d_index, &in[j], sizeof(gr_complex)*resid);
+      d_index = 0;
+
+      j += resid;
+      fft(d_residbuf, d_fftsize);
+      
+      d_main_gui->UpdateWindow(true, d_fft->get_outbuf(), d_fftsize,
+			       NULL, 0, (float*)d_residbuf, d_fftsize,
+			       currentTime, true);
+    }
+    // Otherwise, copy what we received into the residbuf for next time
+    else {
+      memcpy(d_residbuf+d_index, &in[j], sizeof(gr_complex)*datasize);
+      d_index += datasize;
+      j += datasize;
+    }   
+  }
+
+  consume_each(j);
+  return j;
+}