sdrangel/ft8/fftbuffers.cpp

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2.8 KiB
C++
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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2023 Edouard Griffiths, F4EXB. //
// //
// This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon //
// written by Robert Morris, AB1HL //
// reformatted and adapted to Qt and SDRangel context //
// //
// This program 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 as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "fftbuffers.h"
namespace FT8
{
FFTBuffers::~FFTBuffers()
{
for (auto& mapitem : m_rs) {
fftwf_free(mapitem.second);
}
for (auto& mapitem : m_cs) {
fftwf_free(mapitem.second);
}
for (auto& mapitem : m_ccis) {
fftwf_free(mapitem.second);
}
for (auto& mapitem : m_ccos) {
fftwf_free(mapitem.second);
}
}
float* FFTBuffers::getR(int n)
{
if (m_rs.find(n) == m_rs.end()) {
m_rs[n] = (float *) fftwf_malloc(sizeof(float) * n);
}
return m_rs[n];
}
fftwf_complex *FFTBuffers::getC(int n)
{
if (m_cs.find(n) == m_cs.end()) {
m_cs[n] = (fftwf_complex *) fftwf_malloc(sizeof(fftwf_complex) * ((n / 2) + 1));
}
return m_cs[n];
}
fftwf_complex *FFTBuffers::getCCI(int n)
{
if (m_ccis.find(n) == m_ccis.end()) {
m_ccis[n] = (fftwf_complex *) fftwf_malloc(n * sizeof(fftwf_complex));
}
return m_ccis[n];
}
fftwf_complex *FFTBuffers::getCCO(int n)
{
if (m_ccos.find(n) == m_ccos.end()) {
m_ccos[n] = (fftwf_complex *) fftwf_malloc(n * sizeof(fftwf_complex));
}
return m_ccos[n];
}
} // nemespace FT8