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gnss-sdr/src/algorithms/libs/short_x2_to_cshort.cc
Carles Fernandez 4d0d263280
Make the software package compliant with the REUSE Specification v3.0 (see https://reuse.software/spec/)
Update license headers to SPDX format (see https://spdx.org/)
Add license to all files
Add CI job in GitHub Actions to ensure compliance
2020-02-08 01:20:02 +01:00

61 lines
1.9 KiB
C++

/*!
* \file short_x2_to_cshort.cc
* \brief Adapts two short streams into a std::complex<short> stream
* \author Carles Fernandez Prades, cfernandez(at)cttc.es
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -------------------------------------------------------------------------
*/
#include "short_x2_to_cshort.h"
#include <gnuradio/io_signature.h>
#include <volk_gnsssdr/volk_gnsssdr.h>
#include <algorithm> // for max
#include <complex> // for complex
short_x2_to_cshort_sptr make_short_x2_to_cshort()
{
return short_x2_to_cshort_sptr(new short_x2_to_cshort());
}
short_x2_to_cshort::short_x2_to_cshort() : sync_block("short_x2_to_cshort",
gr::io_signature::make(2, 2, sizeof(int16_t)),
gr::io_signature::make(1, 1, sizeof(lv_16sc_t)))
{
const int alignment_multiple = volk_gnsssdr_get_alignment() / sizeof(lv_16sc_t);
set_alignment(std::max(1, alignment_multiple));
}
int short_x2_to_cshort::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const auto *in0 = reinterpret_cast<const int16_t *>(input_items[0]);
const auto *in1 = reinterpret_cast<const int16_t *>(input_items[1]);
auto *out = reinterpret_cast<lv_16sc_t *>(output_items[0]);
// This could be put into a volk kernel
int16_t real_part;
int16_t imag_part;
for (int number = 0; number < noutput_items; number++)
{
real_part = *in0++;
imag_part = *in1++;
*out++ = lv_cmake(real_part, imag_part);
}
return noutput_items;
}