sdrangel/plugins/channelrx/demodft8/ft8buffer.cpp

52 wiersze
2.0 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2023 Edouard Griffiths, F4EXB //
// //
// 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 <QMutexLocker>
#include "ft8demodsettings.h"
#include "ft8buffer.h"
FT8Buffer::FT8Buffer() :
m_bufferSize(FT8DemodSettings::m_ft8SampleRate*15),
m_sampleIndex(0)
{
m_buffer = new int16_t[2*m_bufferSize];
}
FT8Buffer::~FT8Buffer()
{
delete[] m_buffer;
}
void FT8Buffer::feed(int16_t sample)
{
QMutexLocker mlock(&m_mutex);
m_buffer[m_sampleIndex] = sample;
m_buffer[m_sampleIndex + m_bufferSize] = sample;
m_sampleIndex++;
if (m_sampleIndex == m_bufferSize) {
m_sampleIndex = 0;
}
}
void FT8Buffer::getCurrentBuffer(int16_t *bufferCopy)
{
QMutexLocker mlock(&m_mutex);
std::copy(&m_buffer[m_sampleIndex], &m_buffer[m_sampleIndex + m_bufferSize], bufferCopy);
}