kopia lustrzana https://github.com/f4exb/sdrangel
406 wiersze
12 KiB
C++
406 wiersze
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016, 2019-2020, 2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// Copyright (C) 2021-2022 Jon Beniston, M7RCE <jon@beniston.com> //
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// Copyright (C) 2021 Franco Venturi <fventuri@comcast.net> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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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 V3 for more details. //
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// //
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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, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <stdio.h>
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#include <errno.h>
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#include <chrono>
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#include <thread>
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#include "sdrplayv3thread.h"
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#include "dsp/samplesinkfifo.h"
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#include "util/poweroftwo.h"
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#include <QDebug>
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SDRPlayV3Thread::SDRPlayV3Thread(sdrplay_api_DeviceT* dev, SampleSinkFifo* sampleFifo, ReplayBuffer<qint16> *replayBuffer, QObject* parent) :
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QThread(parent),
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m_running(false),
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m_dev(dev),
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m_convertBuffer(SDRPLAYV3_INIT_NBSAMPLES),
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m_sampleFifo(sampleFifo),
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m_samplerate(2000000),
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m_replayBuffer(replayBuffer),
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m_log2Decim(0),
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m_fcPos(0),
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m_iqOrder(true),
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m_iqCount(0)
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{
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}
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SDRPlayV3Thread::~SDRPlayV3Thread()
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{
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stopWork();
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}
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void SDRPlayV3Thread::startWork()
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{
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sdrplay_api_ErrT err;
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sdrplay_api_CallbackFnsT cbFns;
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cbFns.StreamACbFn = &SDRPlayV3Thread::callbackHelper;
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cbFns.StreamBCbFn = &SDRPlayV3Thread::callbackHelper;
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cbFns.EventCbFn = &SDRPlayV3Thread::eventCallback;
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if ((err = sdrplay_api_Init(m_dev->dev, &cbFns, this)) != sdrplay_api_Success)
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{
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qCritical() << "SDRPlayV3Thread::run: sdrplay_api_Init error: " << sdrplay_api_GetErrorString(err);
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m_running = false;
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return;
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}
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m_startWaitMutex.lock();
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start();
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while(!m_running) {
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m_startWaiter.wait(&m_startWaitMutex, 100);
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}
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m_startWaitMutex.unlock();
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}
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void SDRPlayV3Thread::stopWork()
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{
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sdrplay_api_ErrT err;
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if (m_running)
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{
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m_running = false;
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if ((err = sdrplay_api_Uninit(m_dev->dev)) != sdrplay_api_Success) {
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qWarning() << "SDRPlayV3Thread::callbackHelper: sdrplay_api_Uninit error: " << sdrplay_api_GetErrorString(err);
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}
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}
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wait();
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}
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void SDRPlayV3Thread::setSamplerate(int samplerate)
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{
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m_samplerate = samplerate;
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}
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void SDRPlayV3Thread::setLog2Decimation(unsigned int log2_decim)
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{
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m_log2Decim = log2_decim;
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}
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void SDRPlayV3Thread::setFcPos(int fcPos)
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{
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m_fcPos = fcPos;
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}
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void SDRPlayV3Thread::resetRfChanged()
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{
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m_rfChanged = 0;
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}
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bool SDRPlayV3Thread::waitForRfChanged()
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{
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for (unsigned int i = 0; i < m_rfChangedTimeout && m_rfChanged == 0; i++)
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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return m_rfChanged != 0;
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}
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// Don't really need a thread here - just using same structure as other plugins
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void SDRPlayV3Thread::run()
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{
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m_running = true;
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m_startWaiter.wakeAll();
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}
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void SDRPlayV3Thread::eventCallback(sdrplay_api_EventT eventId, sdrplay_api_TunerSelectT tuner, sdrplay_api_EventParamsT *params, void *cbContext)
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{
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// Could possibly report params->gainParams.currGain for eventId == sdrplay_api_GainChange
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// or indicate ADC overload for eventId == sdrplay_api_PowerOverloadChange
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(void) eventId;
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(void) tuner;
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(void) params;
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(void) cbContext;
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}
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void SDRPlayV3Thread::callbackHelper(short *xi, short *xq, sdrplay_api_StreamCbParamsT *params, unsigned int numSamples, unsigned int reset, void *ctx)
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{
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(void) params;
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(void) reset;
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SDRPlayV3Thread* thread = (SDRPlayV3Thread*) ctx;
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if (params->rfChanged)
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thread->m_rfChanged = params->rfChanged;
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if (thread->m_running)
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{
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// Interleave samples
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for (int i = 0; i < (int)numSamples; i++)
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{
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thread->m_iq[thread->m_iqCount+i*2] = xi[i];
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thread->m_iq[thread->m_iqCount+i*2+1] = xq[i];
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}
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thread->m_iqCount += numSamples * 2;
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if (thread->m_iqCount > 8192) {
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qCritical() << "SDRPlayV3Thread::callbackHelper: IQ buffer too small: " << numSamples;
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}
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// Decimators require length to be a power of 2
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int iqLen = lowerPowerOfTwo(thread->m_iqCount);
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if (thread->m_iqOrder) {
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thread->callbackIQ(thread->m_iq, iqLen);
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} else {
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thread->callbackQI(thread->m_iq, iqLen);
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}
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// Shuffle buffer up
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int iqRemaining = thread->m_iqCount - iqLen;
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memmove(thread->m_iq, &thread->m_iq[iqLen], iqRemaining * sizeof(qint16));
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thread->m_iqCount = iqRemaining;
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}
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}
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void SDRPlayV3Thread::callbackIQ(const qint16* inBuf, qint32 len)
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{
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SampleVector::iterator it = m_convertBuffer.begin();
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// Save data to replay buffer
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m_replayBuffer->lock();
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bool replayEnabled = m_replayBuffer->getSize() > 0;
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if (replayEnabled) {
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m_replayBuffer->write(inBuf, len);
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}
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const qint16* buf = inBuf;
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qint32 remaining = len;
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while (remaining > 0)
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{
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// Choose between live data or replayed data
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if (replayEnabled && m_replayBuffer->useReplay()) {
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len = m_replayBuffer->read(remaining, buf);
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} else {
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len = remaining;
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}
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remaining -= len;
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if (m_log2Decim == 0)
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{
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m_decimatorsIQ.decimate1(&it, buf, len);
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}
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else
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{
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if (m_fcPos == 0) // Infradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_inf(&it, buf, len);
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break;
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case 2:
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m_decimatorsIQ.decimate4_inf(&it, buf, len);
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break;
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case 3:
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m_decimatorsIQ.decimate8_inf(&it, buf, len);
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break;
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case 4:
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m_decimatorsIQ.decimate16_inf(&it, buf, len);
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break;
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case 5:
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m_decimatorsIQ.decimate32_inf(&it, buf, len);
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break;
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case 6:
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m_decimatorsIQ.decimate64_inf(&it, buf, len);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 1) // Supradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_sup(&it, buf, len);
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break;
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case 2:
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m_decimatorsIQ.decimate4_sup(&it, buf, len);
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break;
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case 3:
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m_decimatorsIQ.decimate8_sup(&it, buf, len);
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break;
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case 4:
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m_decimatorsIQ.decimate16_sup(&it, buf, len);
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break;
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case 5:
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m_decimatorsIQ.decimate32_sup(&it, buf, len);
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break;
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case 6:
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m_decimatorsIQ.decimate64_sup(&it, buf, len);
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break;
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default:
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break;
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}
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}
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else // Centered
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsIQ.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_decimatorsIQ.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_decimatorsIQ.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_decimatorsIQ.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_decimatorsIQ.decimate32_cen(&it, buf, len);
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break;
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case 6:
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m_decimatorsIQ.decimate64_cen(&it, buf, len);
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break;
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default:
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break;
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}
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}
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}
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}
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m_replayBuffer->unlock();
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m_sampleFifo->write(m_convertBuffer.begin(), it);
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}
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void SDRPlayV3Thread::callbackQI(const qint16* inBuf, qint32 len)
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{
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SampleVector::iterator it = m_convertBuffer.begin();
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// Save data to replay buffer
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m_replayBuffer->lock();
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bool replayEnabled = m_replayBuffer->getSize() > 0;
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if (replayEnabled) {
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m_replayBuffer->write(inBuf, len);
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}
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const qint16* buf = inBuf;
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qint32 remaining = len;
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while (remaining > 0)
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{
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// Choose between live data or replayed data
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if (replayEnabled && m_replayBuffer->useReplay()) {
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len = m_replayBuffer->read(remaining, buf);
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} else {
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len = remaining;
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}
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remaining -= len;
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if (m_log2Decim == 0)
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{
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m_decimatorsQI.decimate1(&it, buf, len);
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}
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else
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{
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if (m_fcPos == 0) // Infradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_inf(&it, buf, len);
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break;
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case 2:
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m_decimatorsQI.decimate4_inf(&it, buf, len);
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break;
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case 3:
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m_decimatorsQI.decimate8_inf(&it, buf, len);
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break;
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case 4:
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m_decimatorsQI.decimate16_inf(&it, buf, len);
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break;
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case 5:
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m_decimatorsQI.decimate32_inf(&it, buf, len);
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break;
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case 6:
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m_decimatorsQI.decimate64_inf(&it, buf, len);
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break;
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default:
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break;
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}
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}
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else if (m_fcPos == 1) // Supradyne
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_sup(&it, buf, len);
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break;
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case 2:
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m_decimatorsQI.decimate4_sup(&it, buf, len);
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break;
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case 3:
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m_decimatorsQI.decimate8_sup(&it, buf, len);
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break;
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case 4:
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m_decimatorsQI.decimate16_sup(&it, buf, len);
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break;
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case 5:
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m_decimatorsQI.decimate32_sup(&it, buf, len);
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break;
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case 6:
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m_decimatorsQI.decimate64_sup(&it, buf, len);
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break;
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default:
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break;
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}
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}
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else // Centered
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{
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switch (m_log2Decim)
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{
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case 1:
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m_decimatorsQI.decimate2_cen(&it, buf, len);
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break;
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case 2:
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m_decimatorsQI.decimate4_cen(&it, buf, len);
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break;
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case 3:
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m_decimatorsQI.decimate8_cen(&it, buf, len);
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break;
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case 4:
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m_decimatorsQI.decimate16_cen(&it, buf, len);
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break;
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case 5:
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m_decimatorsQI.decimate32_cen(&it, buf, len);
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break;
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case 6:
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m_decimatorsQI.decimate64_cen(&it, buf, len);
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break;
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default:
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break;
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}
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}
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}
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}
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m_replayBuffer->unlock();
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m_sampleFifo->write(m_convertBuffer.begin(), it);
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}
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