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149 lines
3.9 KiB
C++
149 lines
3.9 KiB
C++
/* unit.hpp
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2013 Warren Pratt, NR0V
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Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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The author can be reached by email at
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warren@wpratt.com
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*/
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#include <algorithm>
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#include "unit.hpp"
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namespace WDSP {
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Unit::Unit(
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int _in_rate, // input samplerate
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int _out_rate, // output samplerate
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int _dsp_rate, // sample rate for mainstream dsp processing
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int _dsp_size // number complex samples processed per buffer in mainstream dsp processing
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) :
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in_rate{_in_rate},
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out_rate(_out_rate),
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dsp_rate(_dsp_rate),
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dsp_size(_dsp_size)
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{
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if (_in_rate >= _dsp_rate)
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dsp_insize = _dsp_size * (_in_rate / _dsp_rate);
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else
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dsp_insize = _dsp_size / (_dsp_rate / _in_rate);
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if (_out_rate >= _dsp_rate)
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dsp_outsize = _dsp_size * (_out_rate / _dsp_rate);
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else
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dsp_outsize = _dsp_size / (_dsp_rate / _out_rate);
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// buffers
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inbuff = new float[1 * dsp_insize * 2];
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outbuff = new float[1 * dsp_outsize * 2];
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midbuff = new float[2 * dsp_size * 2];
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}
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Unit::~Unit()
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{
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delete[] inbuff;
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delete[] outbuff;
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delete[] midbuff;
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}
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void Unit::flushBuffers()
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{
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std::fill(inbuff, inbuff + 1 * dsp_insize * 2, 0);
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std::fill(outbuff, outbuff + 1 * dsp_outsize * 2, 0);
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std::fill(midbuff, midbuff + 2 * dsp_size * 2, 0);
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}
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void Unit::setBuffersInputSamplerate(int _in_rate)
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{
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if (_in_rate >= dsp_rate)
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dsp_insize = dsp_size * (_in_rate / dsp_rate);
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else
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dsp_insize = dsp_size / (dsp_rate / _in_rate);
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in_rate = _in_rate;
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// buffers
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delete[] (inbuff);
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inbuff = new float[1 * dsp_insize * 2];
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}
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void Unit::setBuffersOutputSamplerate(int _out_rate)
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{
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if (_out_rate >= dsp_rate)
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dsp_outsize = dsp_size * (_out_rate / dsp_rate);
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else
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dsp_outsize = dsp_size / (dsp_rate / _out_rate);
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out_rate = _out_rate;
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// buffers
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delete[] outbuff;
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outbuff = new float[1 * dsp_outsize * 2];
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}
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void Unit::setBuffersDSPSamplerate(int _dsp_rate)
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{
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if (in_rate >= _dsp_rate)
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dsp_insize = dsp_size * (in_rate / _dsp_rate);
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else
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dsp_insize = dsp_size / (_dsp_rate / in_rate);
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if (out_rate >= _dsp_rate)
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dsp_outsize = dsp_size * (out_rate / _dsp_rate);
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else
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dsp_outsize = dsp_size / (_dsp_rate / out_rate);
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dsp_rate = _dsp_rate;
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// buffers
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delete[] inbuff;
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inbuff = new float[1 * dsp_insize * 2];
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delete[] outbuff;
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outbuff = new float[1 * dsp_outsize * 2];
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}
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void Unit::setBuffersDSPBuffsize(int _dsp_size)
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{
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if (in_rate >= dsp_rate)
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dsp_insize = _dsp_size * (in_rate / dsp_rate);
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else
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dsp_insize = _dsp_size / (dsp_rate / in_rate);
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if (out_rate >= dsp_rate)
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dsp_outsize = _dsp_size * (out_rate / dsp_rate);
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else
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dsp_outsize = _dsp_size / (dsp_rate / out_rate);
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dsp_size = _dsp_size;
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// buffers
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delete[]inbuff;
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inbuff = new float[1 * dsp_insize * 2];
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delete[] midbuff;
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midbuff = new float[2 * dsp_size * 2];
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delete[] outbuff;
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outbuff = new float[1 * dsp_outsize * 2];
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}
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} // namespace
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