3 * Copyright 2008,2009,2010 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
27 #include <qtgui_sink_f.h>
28 #include <gr_io_signature.h>
34 qtgui_make_sink_f (int fftsize, int wintype,
36 const std::string &name,
37 bool plotfreq, bool plotwaterfall,
38 bool plotwaterfall3d, bool plottime,
43 return gnuradio::get_initial_sptr(new qtgui_sink_f (fftsize, wintype,
45 plotfreq, plotwaterfall,
46 plotwaterfall3d, plottime,
52 qtgui_sink_f::qtgui_sink_f (int fftsize, int wintype,
54 const std::string &name,
55 bool plotfreq, bool plotwaterfall,
56 bool plotwaterfall3d, bool plottime,
61 gr_make_io_signature (1, 1, sizeof(float)),
62 gr_make_io_signature (0, 0, 0)),
64 d_wintype((gr_firdes::win_type)(wintype)),
65 d_center_freq(fc), d_bandwidth(bw), d_name(name),
66 d_plotfreq(plotfreq), d_plotwaterfall(plotwaterfall),
67 d_plottime(plottime), d_plotconst(plotconst),
70 if(plotwaterfall3d == true) {
71 fprintf(stderr, "Warning: plotting Waterfall3D has been removed; enabling plotwaterfall3d has no effect.\n");
75 pthread_mutex_init(&d_pmutex, NULL);
78 // Perform fftshift operation;
79 // this is usually desired when plotting
82 d_fft = new gri_fft_complex (d_fftsize, true);
85 d_residbuf = new float[d_fftsize];
89 initialize(use_openGL);
92 qtgui_sink_f::~qtgui_sink_f()
100 qtgui_sink_f::forecast(int noutput_items, gr_vector_int &ninput_items_required)
102 unsigned int ninputs = ninput_items_required.size();
103 for (unsigned int i = 0; i < ninputs; i++) {
104 ninput_items_required[i] = std::min(d_fftsize, 8191);
108 void qtgui_sink_f::lock()
110 pthread_mutex_lock(&d_pmutex);
113 void qtgui_sink_f::unlock()
115 pthread_mutex_unlock(&d_pmutex);
119 qtgui_sink_f::initialize(const bool opengl)
122 d_qApplication = qApp;
127 d_qApplication = new QApplication(argc, argv);
131 uint64_t maxBufferSize = 32768;
132 d_main_gui = new SpectrumGUIClass(maxBufferSize, d_fftsize,
136 d_main_gui->SetDisplayTitle(d_name);
137 d_main_gui->SetFFTSize(d_fftsize);
138 d_main_gui->SetWindowType((int)d_wintype);
140 d_main_gui->OpenSpectrumWindow(d_parent,
141 d_plotfreq, d_plotwaterfall,
142 d_plottime, d_plotconst,
145 // initialize update time to 10 times a second
146 set_update_time(0.1);
148 d_object = new qtgui_obj(d_qApplication);
149 qApp->postEvent(d_object, new qtgui_event(&d_pmutex));
153 qtgui_sink_f::exec_()
155 d_qApplication->exec();
159 qtgui_sink_f::qwidget()
161 return d_main_gui->qwidget();
165 qtgui_sink_f::pyqwidget()
167 PyObject *w = PyLong_FromVoidPtr((void*)d_main_gui->qwidget());
168 PyObject *retarg = Py_BuildValue("N", w);
173 qtgui_sink_f::set_frequency_range(const double centerfreq,
174 const double bandwidth)
176 d_center_freq = centerfreq;
177 d_bandwidth = bandwidth;
178 d_main_gui->SetFrequencyRange(d_center_freq,
184 qtgui_sink_f::set_time_domain_axis(double min, double max)
186 d_main_gui->SetTimeDomainAxis(min, max);
190 qtgui_sink_f::set_constellation_axis(double xmin, double xmax,
191 double ymin, double ymax)
193 d_main_gui->SetConstellationAxis(xmin, xmax, ymin, ymax);
197 qtgui_sink_f::set_constellation_pen_size(int size)
199 d_main_gui->SetConstellationPenSize(size);
204 qtgui_sink_f::set_frequency_axis(double min, double max)
206 d_main_gui->SetFrequencyAxis(min, max);
210 qtgui_sink_f::set_update_time(double t)
213 d_main_gui->SetUpdateTime(d_update_time);
217 qtgui_sink_f::fft(const float *data_in, int size)
219 if (d_window.size()) {
220 gr_complex *dst = d_fft->get_inbuf();
221 for (int i = 0; i < size; i++) // apply window
222 dst[i] = data_in[i] * d_window[i];
225 gr_complex *dst = d_fft->get_inbuf();
226 for (int i = 0; i < size; i++) // float to complex conversion
230 d_fft->execute (); // compute the fft
234 qtgui_sink_f::windowreset()
236 gr_firdes::win_type newwintype = (gr_firdes::win_type)d_main_gui->GetWindowType();
237 if(d_wintype != newwintype) {
238 d_wintype = newwintype;
244 qtgui_sink_f::buildwindow()
248 d_window = gr_firdes::window(d_wintype, d_fftsize, 6.76);
253 qtgui_sink_f::fftresize()
255 int newfftsize = d_main_gui->GetFFTSize();
257 if(newfftsize != d_fftsize) {
259 // Resize residbuf and replace data
260 delete [] d_residbuf;
261 d_residbuf = new float[newfftsize];
263 // Set new fft size and reset buffer index
264 // (throws away any currently held data, but who cares?)
265 d_fftsize = newfftsize;
268 // Reset window to reflect new size
271 // Reset FFTW plan for new size
273 d_fft = new gri_fft_complex (d_fftsize, true);
279 qtgui_sink_f::general_work (int noutput_items,
280 gr_vector_int &ninput_items,
281 gr_vector_const_void_star &input_items,
282 gr_vector_void_star &output_items)
285 const float *in = (const float*)input_items[0];
287 pthread_mutex_lock(&d_pmutex);
289 // Update the FFT size from the application
293 for(int i=0; i < noutput_items; i+=d_fftsize) {
294 unsigned int datasize = noutput_items - i;
295 unsigned int resid = d_fftsize-d_index;
297 // If we have enough input for one full FFT, do it
298 if(datasize >= resid) {
299 const timespec currentTime = get_highres_clock();
301 // Fill up residbuf with d_fftsize number of items
302 memcpy(d_residbuf+d_index, &in[j], sizeof(float)*resid);
306 fft(d_residbuf, d_fftsize);
308 d_main_gui->UpdateWindow(true, d_fft->get_outbuf(), d_fftsize,
309 (float*)d_residbuf, d_fftsize, NULL, 0,
312 // Otherwise, copy what we received into the residbuf for next time
314 memcpy(d_residbuf+d_index, &in[j], sizeof(float)*datasize);
320 pthread_mutex_unlock(&d_pmutex);