mirror of https://github.com/f4exb/sdrangel.git
SampleMOFifo: auto amount in-place write methods
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@ -22,8 +22,8 @@ void SampleMOFifo::init(unsigned int nbStreams, unsigned int size)
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m_nbStreams = nbStreams;
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m_size = size;
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m_readCount = 0;
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m_readHead = size/2;
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m_writeHead = 0;
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m_readHead = 0;
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m_writeHead = size/8;
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m_data.resize(nbStreams);
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m_vReadCount.clear();
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m_vReadHead.clear();
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@ -33,8 +33,8 @@ void SampleMOFifo::init(unsigned int nbStreams, unsigned int size)
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{
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m_data[stream].resize(size);
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m_vReadCount.push_back(0);
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m_vReadHead.push_back(size/2);
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m_vWriteHead.push_back(0);
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m_vReadHead.push_back(0);
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m_vWriteHead.push_back(size/8);
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}
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}
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@ -57,15 +57,15 @@ SampleMOFifo::~SampleMOFifo()
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void SampleMOFifo::reset()
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{
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m_readCount = 0;
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m_readHead = m_size/2;
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m_writeHead = 0;
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m_readHead = 0;
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m_writeHead = m_size/8;
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for (unsigned int stream = 0; stream < m_nbStreams; stream++)
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{
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m_data[stream].resize(m_size);
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m_vReadCount[stream] = 0;
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m_vReadHead[stream] = m_size/2;
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m_vWriteHead[stream] = 0;
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m_vReadHead[stream] = 0;
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m_vWriteHead[stream] = m_size/8;
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}
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}
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@ -162,6 +162,36 @@ void SampleMOFifo::commitWriteSync(unsigned int amount)
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m_readCount = amount < m_readCount ? m_readCount - amount : 0;
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}
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void SampleMOFifo::writeSync(
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unsigned int& ipart1Begin, unsigned int& ipart1End, // first part offsets where to write
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unsigned int& ipart2Begin, unsigned int& ipart2End // second part offsets
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)
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{
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QMutexLocker mutexLocker(&m_mutex);
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unsigned int spaceLeft = m_size - m_writeHead;
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unsigned int amount = m_readHead >= m_writeHead ? m_readHead - m_writeHead : m_size + m_readHead - m_writeHead;
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if (amount <= spaceLeft)
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{
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ipart1Begin = m_writeHead;
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ipart1End = m_writeHead + amount;
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ipart2Begin = m_size;
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ipart2End = m_size;
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m_writeHead += amount;
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}
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else
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{
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unsigned int remaining = amount - spaceLeft;
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ipart1Begin = m_writeHead;
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ipart1End = m_size;
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ipart2Begin = 0;
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ipart2End = remaining;
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m_writeHead = remaining;
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}
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m_readCount = amount < m_readCount ? m_readCount - amount : 0;
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}
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void SampleMOFifo::readAsync(
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unsigned int amount,
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unsigned int& ipart1Begin, unsigned int& ipart1End,
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@ -256,3 +286,34 @@ void SampleMOFifo::commitWriteAsync(unsigned int amount, unsigned int stream)
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QMutexLocker mutexLocker(&m_mutex);
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m_vReadCount[stream] = amount < m_vReadCount[stream] ? m_vReadCount[stream] - amount : 0;
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}
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void SampleMOFifo::writeAsync(
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unsigned int& ipart1Begin, unsigned int& ipart1End,
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unsigned int& ipart2Begin, unsigned int& ipart2End,
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unsigned int stream
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)
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{
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QMutexLocker mutexLocker(&m_mutex);
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unsigned int spaceLeft = m_size - m_vWriteHead[stream];
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unsigned int amount = m_vReadHead[stream] >= m_vWriteHead[stream] ? m_vReadHead[stream] - m_vWriteHead[stream] : m_size + m_vReadHead[stream] - m_vWriteHead[stream];
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if (amount <= spaceLeft)
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{
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ipart1Begin = m_vWriteHead[stream];
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ipart1End = m_vWriteHead[stream] + amount;
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ipart2Begin = m_size;
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ipart2End = m_size;
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m_vWriteHead[stream] += amount;
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}
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else
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{
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unsigned int remaining = amount - spaceLeft;
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ipart1Begin = m_vWriteHead[stream];
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ipart1End = m_size;
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ipart2Begin = 0;
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ipart2End = remaining;
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m_vWriteHead[stream] = remaining;
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}
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m_vReadCount[stream] = amount < m_vReadCount[stream] ? m_vReadCount[stream] - amount : 0;
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}
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@ -39,7 +39,11 @@ public:
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unsigned int& ipart2Begin, unsigned int& ipart2End // second part offsets
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);
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void writeSync(const std::vector<SampleVector::iterator>& vbegin, unsigned int amount); //!< copy write
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void writeSync( //!< in place write
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void writeSync( //!< in place write with auto amount
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unsigned int& ipart1Begin, unsigned int& ipart1End, // first part offsets where to write
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unsigned int& ipart2Begin, unsigned int& ipart2End // second part offsets
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);
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void writeSync( //!< in place write with given amount
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unsigned int amount,
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unsigned int& ipart1Begin, unsigned int& ipart1End, // first part offsets where to write
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unsigned int& ipart2Begin, unsigned int& ipart2End // second part offsets
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@ -53,7 +57,12 @@ public:
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unsigned int stream
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);
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void writeAsync(const SampleVector::iterator& begin, unsigned int amount, unsigned int stream); //!< copy write
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void writeAsync( //!< in place write
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void writeAsync( //!< in place write with auto amount
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unsigned int& ipart1Begin, unsigned int& ipart1End,
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unsigned int& ipart2Begin, unsigned int& ipart2End,
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unsigned int stream
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);
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void writeAsync( //!< in place write with given amount
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unsigned int amount,
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unsigned int& ipart1Begin, unsigned int& ipart1End,
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unsigned int& ipart2Begin, unsigned int& ipart2End,
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