115 lines
2.6 KiB
C++
115 lines
2.6 KiB
C++
#include <QThread>
|
|
#include "dsp/threadedsamplesink.h"
|
|
#include "util/message.h"
|
|
|
|
ThreadedSampleSink::ThreadedSampleSink(SampleSink* sampleSink) :
|
|
m_thread(new QThread),
|
|
m_sampleSink(sampleSink)
|
|
{
|
|
moveToThread(m_thread);
|
|
connect(m_thread, SIGNAL(started()), this, SLOT(threadStarted()));
|
|
connect(m_thread, SIGNAL(finished()), this, SLOT(threadFinished()));
|
|
|
|
m_messageQueue.moveToThread(m_thread);
|
|
connect(&m_messageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleMessages()));
|
|
|
|
m_sampleFifo.moveToThread(m_thread);
|
|
connect(&m_sampleFifo, SIGNAL(dataReady()), this, SLOT(handleData()));
|
|
m_sampleFifo.setSize(128 * 1024);
|
|
|
|
sampleSink->moveToThread(m_thread);
|
|
}
|
|
|
|
ThreadedSampleSink::~ThreadedSampleSink()
|
|
{
|
|
m_thread->exit();
|
|
m_thread->wait();
|
|
delete m_thread;
|
|
}
|
|
|
|
void ThreadedSampleSink::feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool firstOfBurst)
|
|
{
|
|
Q_UNUSED(firstOfBurst);
|
|
m_sampleFifo.write(begin, end);
|
|
}
|
|
|
|
void ThreadedSampleSink::start()
|
|
{
|
|
m_thread->start();
|
|
}
|
|
|
|
void ThreadedSampleSink::stop()
|
|
{
|
|
m_thread->exit();
|
|
m_thread->wait();
|
|
m_sampleFifo.readCommit(m_sampleFifo.fill());
|
|
}
|
|
|
|
bool ThreadedSampleSink::handleMessage(Message* cmd)
|
|
{
|
|
// called from other thread
|
|
m_messageQueue.submit(cmd);
|
|
return true;
|
|
}
|
|
|
|
void ThreadedSampleSink::handleData()
|
|
{
|
|
bool firstOfBurst = true;
|
|
QTime time;
|
|
|
|
time.start();
|
|
|
|
while((m_sampleFifo.fill() > 0) && (m_messageQueue.countPending() == 0) && (time.elapsed() < 250)) {
|
|
SampleVector::iterator part1begin;
|
|
SampleVector::iterator part1end;
|
|
SampleVector::iterator part2begin;
|
|
SampleVector::iterator part2end;
|
|
|
|
size_t count = m_sampleFifo.readBegin(m_sampleFifo.fill(), &part1begin, &part1end, &part2begin, &part2end);
|
|
|
|
if(m_sampleSink != NULL) {
|
|
// first part of FIFO data
|
|
if(part1begin != part1end) {
|
|
// handle data
|
|
m_sampleSink->feed(part1begin, part1end, firstOfBurst);
|
|
firstOfBurst = false;
|
|
}
|
|
// second part of FIFO data (used when block wraps around)
|
|
if(part2begin != part2end) {
|
|
// handle data
|
|
m_sampleSink->feed(part2begin, part2end, firstOfBurst);
|
|
firstOfBurst = false;
|
|
}
|
|
}
|
|
|
|
// adjust FIFO pointers
|
|
m_sampleFifo.readCommit(count);
|
|
}
|
|
}
|
|
|
|
void ThreadedSampleSink::handleMessages()
|
|
{
|
|
Message* message;
|
|
while((message = m_messageQueue.accept()) != NULL) {
|
|
//qDebug("CMD: %s", message->getIdentifier());
|
|
if(m_sampleSink != NULL) {
|
|
if(!m_sampleSink->handleMessage(message))
|
|
message->completed();
|
|
} else {
|
|
message->completed();
|
|
}
|
|
}
|
|
}
|
|
|
|
void ThreadedSampleSink::threadStarted()
|
|
{
|
|
if(m_sampleSink != NULL)
|
|
m_sampleSink->start();
|
|
}
|
|
|
|
void ThreadedSampleSink::threadFinished()
|
|
{
|
|
if(m_sampleSink != NULL)
|
|
m_sampleSink->stop();
|
|
}
|