+++ /dev/null
-/* -*- c++ -*- */
-/*
- * Copyright 2004 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.
- */
-
-// WARNING: this file is machine generated. Edits will be over written
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <gr_sig_source_f.h>
-#include <algorithm>
-#include <gr_io_signature.h>
-#include <stdexcept>
-#include <gr_complex.h>
-
-
-gr_sig_source_f::gr_sig_source_f (double sampling_freq, gr_waveform_t waveform,
- double frequency, double ampl, float offset)
- : gr_sync_block ("sig_source_f",
- gr_make_io_signature (0, 0, 0),
- gr_make_io_signature (1, 1, sizeof (float))),
- d_sampling_freq (sampling_freq), d_waveform (waveform), d_frequency (frequency),
- d_ampl (ampl), d_offset (offset)
-{
- d_nco.set_freq (2 * M_PI * d_frequency / d_sampling_freq);
-}
-
-gr_sig_source_f_sptr
-gr_make_sig_source_f (double sampling_freq, gr_waveform_t waveform,
- double frequency, double ampl, float offset)
-{
- return gr_sig_source_f_sptr (new gr_sig_source_f (sampling_freq, waveform, frequency, ampl, offset));
-}
-
-int
-gr_sig_source_f::work (int noutput_items,
- gr_vector_const_void_star &input_items,
- gr_vector_void_star &output_items)
-{
- float *optr = (float *) output_items[0];
- float t;
-
- switch (d_waveform){
-
-#if 0 // complex?
-
- case GR_CONST_WAVE:
- t = (gr_complex) d_ampl + d_offset;
- for (int i = 0; i < noutput_items; i++) // FIXME unroll
- optr[i] = t;
- break;
-
- case GR_SIN_WAVE:
- case GR_COS_WAVE:
- d_nco.sincos (optr, noutput_items, d_ampl);
- if (d_offset == gr_complex(0,0))
- break;
-
- for (int i = 0; i < noutput_items; i++){
- optr[i] += d_offset;
- }
- break;
-
- /* Implements a real square wave high from -PI to 0.
- * The imaginary square wave leads by 90 deg.
- */
- case GR_SQR_WAVE:
- for (int i = 0; i < noutput_items; i++){
- if (d_nco.get_phase() < -1*M_PI/2)
- optr[i] = gr_complex(d_ampl, 0)+d_offset;
- else if (d_nco.get_phase() < 0)
- optr[i] = gr_complex(d_ampl, d_ampl)+d_offset;
- else if (d_nco.get_phase() < M_PI/2)
- optr[i] = gr_complex(0, d_ampl)+d_offset;
- else
- optr[i] = d_offset;
- d_nco.step();
- }
- break;
-
- /* Implements a real triangle wave rising from -PI to 0 and
- * falling from 0 to PI. The imaginary triangle wave leads by 90 deg.
- */
- case GR_TRI_WAVE:
- for (int i = 0; i < noutput_items; i++){
- if (d_nco.get_phase() < -1*M_PI/2){
- optr[i] = gr_complex(d_ampl*d_nco.get_phase()/M_PI + d_ampl,
- -1*d_ampl*d_nco.get_phase()/M_PI - d_ampl/2)+d_offset;
- }
- else if (d_nco.get_phase() < 0){
- optr[i] = gr_complex(d_ampl*d_nco.get_phase()/M_PI + d_ampl,
- d_ampl*d_nco.get_phase()/M_PI + d_ampl/2)+d_offset;
- }
- else if (d_nco.get_phase() < M_PI/2){
- optr[i] = gr_complex(-1*d_ampl*d_nco.get_phase()/M_PI + d_ampl,
- d_ampl*d_nco.get_phase()/M_PI + d_ampl/2)+d_offset;
- }
- else{
- optr[i] = gr_complex(-1*d_ampl*d_nco.get_phase()/M_PI + d_ampl,
- -1*d_ampl*d_nco.get_phase()/M_PI + 3*d_ampl/2)+d_offset;
- }
- d_nco.step();
- }
- break;
-
- /* Implements a real saw tooth wave rising from -PI to PI.
- * The imaginary saw tooth wave leads by 90 deg.
- */
- case GR_SAW_WAVE:
- for (int i = 0; i < noutput_items; i++){
- if (d_nco.get_phase() < -1*M_PI/2){
- optr[i] = gr_complex(d_ampl*d_nco.get_phase()/(2*M_PI) + d_ampl/2,
- d_ampl*d_nco.get_phase()/(2*M_PI) + 5*d_ampl/4)+d_offset;
- }
- else{
- optr[i] = gr_complex(d_ampl*d_nco.get_phase()/(2*M_PI) + d_ampl/2,
- d_ampl*d_nco.get_phase()/(2*M_PI) + d_ampl/4)+d_offset;
- }
- d_nco.step();
- }
- break;
-
-#else // nope...
-
- case GR_CONST_WAVE:
- t = (float) d_ampl + d_offset;
- for (int i = 0; i < noutput_items; i++) // FIXME unroll
- optr[i] = t;
- break;
-
- case GR_SIN_WAVE:
- d_nco.sin (optr, noutput_items, d_ampl);
- if (d_offset == 0)
- break;
-
- for (int i = 0; i < noutput_items; i++){
- optr[i] += d_offset;
- }
- break;
-
- case GR_COS_WAVE:
- d_nco.cos (optr, noutput_items, d_ampl);
- if (d_offset == 0)
- break;
-
- for (int i = 0; i < noutput_items; i++){
- optr[i] += d_offset;
- }
- break;
-
- /* The square wave is high from -PI to 0. */
- case GR_SQR_WAVE:
- t = (float) d_ampl + d_offset;
- for (int i = 0; i < noutput_items; i++){
- if (d_nco.get_phase() < 0)
- optr[i] = t;
- else
- optr[i] = d_offset;
- d_nco.step();
- }
- break;
-
- /* The triangle wave rises from -PI to 0 and falls from 0 to PI. */
- case GR_TRI_WAVE:
- for (int i = 0; i < noutput_items; i++){
- double t = d_ampl*d_nco.get_phase()/M_PI;
- if (d_nco.get_phase() < 0)
- optr[i] = static_cast<float>(t + d_ampl + d_offset);
- else
- optr[i] = static_cast<float>(-1*t + d_ampl + d_offset);
- d_nco.step();
- }
- break;
-
- /* The saw tooth wave rises from -PI to PI. */
- case GR_SAW_WAVE:
- for (int i = 0; i < noutput_items; i++){
- t = static_cast<float>(d_ampl*d_nco.get_phase()/(2*M_PI) + d_ampl/2 + d_offset);
- optr[i] = t;
- d_nco.step();
- }
- break;
-
-#endif
-
- default:
- throw std::runtime_error ("gr_sig_source: invalid waveform");
- }
-
- return noutput_items;
-}
-
-void
-gr_sig_source_f::set_sampling_freq (double sampling_freq)
-{
- d_sampling_freq = sampling_freq;
- d_nco.set_freq (2 * M_PI * d_frequency / d_sampling_freq);
-}
-
-void
-gr_sig_source_f::set_waveform (gr_waveform_t waveform)
-{
- d_waveform = waveform;
-}
-
-void
-gr_sig_source_f::set_frequency (double frequency)
-{
- d_frequency = frequency;
- d_nco.set_freq (2 * M_PI * d_frequency / d_sampling_freq);
-}
-
-void
-gr_sig_source_f::set_amplitude (double ampl)
-{
- d_ampl = ampl;
-}
-
-void
-gr_sig_source_f::set_offset (float offset)
-{
- d_offset = offset;
-}
-
projects / debian / gnuradio / blobdiff