Perseus: refactored PerseusInputThread to PerseusInputWorker object moved to thread. Equivalent to FileInput changes

2026-06-01 21:54:55 -04:00 · 2020-07-12 00:35:37 +02:00
parent b348df91db
commit cdc35d0b33
5 changed files with 83 additions and 82 deletions
@@ -0,0 +1,138 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 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 <QtGlobal>
+#include <algorithm>
+#include "perseusworker.h"
+
+PerseusWorker *PerseusWorker::m_this = 0;
+
+PerseusWorker::PerseusWorker(perseus_descr* dev, SampleSinkFifo* sampleFifo, QObject* parent) :
+    QObject(parent),
+    m_running(false),
+    m_dev(dev),
+    m_convertBuffer(PERSEUS_NBSAMPLES),
+    m_sampleFifo(sampleFifo),
+    m_log2Decim(0),
+    m_iqOrder(true)
+{
+    m_this = this;
+    std::fill(m_buf, m_buf + 2*PERSEUS_NBSAMPLES, 0);
+}
+
+PerseusWorker::~PerseusWorker()
+{
+    stopWork();
+    m_this = 0;
+}
+
+void PerseusWorker::startWork()
+{
+    qDebug("PerseusWorker::startWork");
+	int rc = perseus_start_async_input(m_dev, PERSEUS_BLOCKSIZE, rx_callback, 0);
+
+	if (rc < 0)
+    {
+		qCritical("PerseusWorker::run: failed to start Perseus Rx: %s", perseus_errorstr());
+        m_running = false;
+	}
+	else
+	{
+	    qDebug("PerseusWorker::run: start Perseus Rx");
+        m_running = true;
+	}
+}
+
+void PerseusWorker::stopWork()
+{
+    qDebug("PerseusWorker::stopWork");
+
+	int rc = perseus_stop_async_input(m_dev);
+
+	if (rc < 0) {
+		qCritical("PerseusWorker::run: failed to stop Perseus Rx: %s", perseus_errorstr());
+	} else {
+		qDebug("PerseusWorker::run: stopped Perseus Rx");
+	}
+
+    m_running = false;
+}
+
+void PerseusWorker::setLog2Decimation(unsigned int log2_decim)
+{
+    m_log2Decim = log2_decim;
+}
+
+
+void PerseusWorker::callbackIQ(const uint8_t* buf, qint32 len)
+{
+    SampleVector::iterator it = m_convertBuffer.begin();
+
+    switch (m_log2Decim)
+    {
+    case 0:
+        m_decimators32IQ.decimate1(&it, (TripleByteLE<qint32>*) buf, len);
+        break;
+    case 1:
+        m_decimators64IQ.decimate2_cen(&it, (TripleByteLE<qint64>*) buf, len);
+        break;
+    case 2:
+        m_decimators64IQ.decimate4_cen(&it, (TripleByteLE<qint64>*) buf, len);
+        break;
+    default:
+        break;
+    }
+
+    m_sampleFifo->write(m_convertBuffer.begin(), it);
+}
+
+void PerseusWorker::callbackQI(const uint8_t* buf, qint32 len)
+{
+    SampleVector::iterator it = m_convertBuffer.begin();
+
+    switch (m_log2Decim)
+    {
+    case 0:
+        m_decimators32QI.decimate1(&it, (TripleByteLE<qint32>*) buf, len);
+        break;
+    case 1:
+        m_decimators64QI.decimate2_cen(&it, (TripleByteLE<qint64>*) buf, len);
+        break;
+    case 2:
+        m_decimators64QI.decimate4_cen(&it, (TripleByteLE<qint64>*) buf, len);
+        break;
+    default:
+        break;
+    }
+
+    m_sampleFifo->write(m_convertBuffer.begin(), it);
+}
+
+int PerseusWorker::rx_callback(void *buf, int buf_size, void *extra)
+{
+    (void) extra;
+	qint32 nbIAndQ = buf_size / 3; // 3 bytes per I or Q
+
+    if (m_this->m_iqOrder) {
+    	m_this->callbackIQ((uint8_t*) buf, nbIAndQ);
+    } else {
+        m_this->callbackQI((uint8_t*) buf, nbIAndQ);
+    }
+
+    return 0;
+}
+