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/* -*- c++ -*- */
/*
* Copyright 2013-2021 Sylvain Munaut <tnt@246tNt.com>
*
* This file is part of gr-iqbalance
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include <gnuradio/iqbalance/fix_cc.h>
namespace gr {
iqbalance::fix_cc::sptr
iqbalance::fix_cc::make(float mag, float phase)
{
return gnuradio::get_initial_sptr(new iqbalance::fix_cc(mag, phase));
}
iqbalance::fix_cc::fix_cc(float mag, float phase)
: gr::sync_block ("fix_cc",
gr::io_signature::make(1, 1, sizeof (gr_complex)),
gr::io_signature::make(1, 1, sizeof (gr_complex))),
d_mag(mag),
d_phase(phase)
{
message_port_register_in(pmt::mp("iqbal_corr"));
set_msg_handler(pmt::mp("iqbal_corr"),
boost::bind(&iqbalance::fix_cc::apply_new_corrections, this, boost::placeholders::_1));
}
iqbalance::fix_cc::~fix_cc()
{
/* Nothing to do */
}
void
iqbalance::fix_cc::apply_new_corrections(pmt::pmt_t msg)
{
if (!pmt::is_f32vector(msg))
return;
this->set_mag(pmt::f32vector_ref(msg, 0));
this->set_phase(pmt::f32vector_ref(msg, 1));
}
int
iqbalance::fix_cc::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const gr_complex *in = (const gr_complex *) input_items[0];
gr_complex *out = (gr_complex *) output_items[0];
int i;
if (this->d_mag == 0.0f && this->d_phase == 0.0f) {
memcpy(out, in, noutput_items * sizeof(gr_complex));
return noutput_items;
}
const float magp1 = 1.0f + this->d_mag;
const float phase = this->d_phase;
for (i=0; i<noutput_items; i++) {
gr_complex v = in[i];
out[i] = gr_complex(
v.real() * magp1,
v.imag() + phase * v.real()
);
}
return noutput_items;
}
} /* namespace gr */
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