mirror of https://github.com/gnss-sdr/gnss-sdr
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
/*!
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* \file complex_byte_to_float_x2.cc
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* \brief Adapts a std::complex<signed char> stream into two 16-bits (short) streams
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* \author Carles Fernandez Prades, cfernandez(at)cttc.es
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*
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "complex_byte_to_float_x2.h"
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#include <gnuradio/io_signature.h>
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#include <volk/volk.h>
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#include <algorithm> // for max
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complex_byte_to_float_x2_sptr make_complex_byte_to_float_x2()
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{
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return complex_byte_to_float_x2_sptr(new complex_byte_to_float_x2());
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}
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complex_byte_to_float_x2::complex_byte_to_float_x2() : sync_block("complex_byte_to_float_x2",
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gr::io_signature::make(1, 1, sizeof(lv_8sc_t)), // lv_8sc_t is a Volk's typedef for std::complex<signed char>
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gr::io_signature::make(2, 2, sizeof(float)))
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{
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const auto alignment_multiple = static_cast<int>(volk_get_alignment() / sizeof(float));
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set_alignment(std::max(1, alignment_multiple));
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}
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int complex_byte_to_float_x2::work(int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items)
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{
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const auto *in = reinterpret_cast<const lv_8sc_t *>(input_items[0]);
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auto *out0 = reinterpret_cast<float *>(output_items[0]);
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auto *out1 = reinterpret_cast<float *>(output_items[1]);
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const float scalar = 1;
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volk_8ic_s32f_deinterleave_32f_x2(out0, out1, in, scalar, noutput_items);
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return noutput_items;
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}
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