mirror of https://github.com/f4exb/sdrangel.git
87 lines
4.2 KiB
C++
87 lines
4.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
|
|
// //
|
|
// SDRdaemon sink channel (Rx) data blocks to read queue //
|
|
// //
|
|
// SDRdaemon is a detached SDR front end that handles the interface with a //
|
|
// physical device and sends or receives the I/Q samples stream to or from a //
|
|
// SDRangel instance via UDP. It is controlled via a Web REST API. //
|
|
// //
|
|
// 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 //
|
|
// //
|
|
// 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/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SDRDAEMON_CHANNEL_SDRDAEMONDATAREADQUEUE_H_
|
|
#define SDRDAEMON_CHANNEL_SDRDAEMONDATAREADQUEUE_H_
|
|
|
|
#include <QQueue>
|
|
|
|
class SDRDaemonDataBlock;
|
|
class Sample;
|
|
|
|
class SDRDaemonDataReadQueue
|
|
{
|
|
public:
|
|
SDRDaemonDataReadQueue(uint32_t sampleSize);
|
|
~SDRDaemonDataReadQueue();
|
|
|
|
void push(SDRDaemonDataBlock* dataBlock); //!< push block on the queue
|
|
SDRDaemonDataBlock* pop(); //!< Pop block from the queue
|
|
void readSample(Sample& s); //!< Read sample from queue
|
|
uint32_t length() const { return m_dataReadQueue.size(); } //!< Returns queue length
|
|
uint32_t size() const { return m_maxSize; } //!< Returns queue size (max length)
|
|
void setSize(uint32_t size); //!< Sets the queue size (max length)
|
|
uint32_t readSampleCount() const { return m_sampleCount; } //!< Returns the absolute number of samples read
|
|
|
|
static const uint32_t MinimumMaxSize;
|
|
|
|
private:
|
|
uint32_t m_sampleSize;
|
|
QQueue<SDRDaemonDataBlock*> m_dataReadQueue;
|
|
SDRDaemonDataBlock *m_dataBlock;
|
|
uint32_t m_maxSize;
|
|
uint32_t m_blockIndex;
|
|
uint32_t m_sampleIndex;
|
|
uint32_t m_sampleCount; //!< use a counter capped below 2^31 as it is going to be converted to an int in the web interface
|
|
bool m_full; //!< full condition was hit
|
|
|
|
inline void convertDataToSample(Sample& s, uint32_t blockIndex, uint32_t sampleIndex)
|
|
{
|
|
if (sizeof(Sample) == m_sampleSize)
|
|
{
|
|
s = *((Sample*) &(m_dataBlock->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*m_sampleSize]));
|
|
}
|
|
else if ((sizeof(Sample) == 4) && (m_sampleSize == 8))
|
|
{
|
|
int32_t rp = *( (int32_t*) &(m_dataBlock->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*m_sampleSize]) );
|
|
int32_t ip = *( (int32_t*) &(m_dataBlock->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*m_sampleSize+4]) );
|
|
s.setReal(rp>>8);
|
|
s.setImag(ip>>8);
|
|
}
|
|
else if ((sizeof(Sample) == 8) && (m_sampleSize == 4))
|
|
{
|
|
int32_t rp = *( (int16_t*) &(m_dataBlock->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*m_sampleSize]) );
|
|
int32_t ip = *( (int16_t*) &(m_dataBlock->m_superBlocks[blockIndex].m_protectedBlock.buf[sampleIndex*m_sampleSize+2]) );
|
|
s.setReal(rp<<8);
|
|
s.setImag(ip<<8);
|
|
}
|
|
else
|
|
{
|
|
s = Sample{0, 0};
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
#endif /* SDRDAEMON_CHANNEL_SDRDAEMONDATAREADQUEUE_H_ */
|