void SC_JackDriver::Reset(double sampleRate, int bufferSize)
{
mSampleRate = mSmoothSampleRate = sampleRate;
mNumSamplesPerCallback = bufferSize;
World_SetSampleRate(mWorld, mSampleRate);
mBuffersPerSecond = mSampleRate / mNumSamplesPerCallback;
mMaxPeakCounter = (int)mBuffersPerSecond;
mOSCincrement = (int64)(mOSCincrementNumerator / mSampleRate);
#ifdef SC_JACK_USE_DLL
mDLL.Reset(
mSampleRate,
mNumSamplesPerCallback,
SC_TIME_DLL_BW,
secondsSinceEpoch(getTime()));
#endif
}
QcepImageDataBase::QcepImageDataBase(QcepSettingsSaverWPtr saver, int width, int height, int size)
: QcepDataObject(saver, tr("image"), size),
m_Width(saver, this, "width", width, "Image Width"),
m_Height(saver, this, "height", height, "Image Height"),
m_DataType(saver, this, "dataType", UndefinedData, "Data Type of Image"),
m_FileBase(saver, this, "fileBase", "", "File Base of Image"),
m_Title(saver, this, "title", "", "Title of Image"),
m_ReadoutMode(saver, this, "readoutMode", 0, "Image Readout Mode"),
m_ExposureTime(saver, this, "exposureTime", 0, "Image Exposure Time"),
m_SummedExposures(saver, this, "summedExposures", 0, "Summed Exposures in Image"),
m_ImageSequenceNumber(saver, this, "imageSequenceNumber", -1, "Image Sequence Number"),
m_ImageNumber(saver, this, "imageNumber", 0, "Image Number"),
m_PhaseNumber(saver, this, "phaseNumber", -1, "Image Phase Number"),
m_NPhases(saver, this, "nPhases", -1, "Number of Image Phases"),
m_DateTime(saver, this, "dateTime", QDateTime::currentDateTime(), "Image Creation Date and Time"),
m_TimeStamp(saver, this, "timeStamp", secondsSinceEpoch(), "Image creation time (secs after UNIX epoch)"),
m_HBinning(saver, this, "hBinning", 1, "Image Horizontal Binning Factor"),
m_VBinning(saver, this, "vBinning", 1, "Image Vertical Binning Factor"),
m_CameraGain(saver, this, "cameraGain", 0, "Image Detector Gain"),
m_Triggered(saver, this, "triggered", 0, "Triggered Flag"),
m_UserComment1(saver, this,"userComment1","", "User Comment 1"),
m_UserComment2(saver, this,"userComment2","", "User Comment 2"),
m_UserComment3(saver, this,"userComment3","", "User Comment 3"),
m_UserComment4(saver, this,"userComment4","", "User Comment 4"),
m_Normalization(saver, this, "normalization", QcepDoubleList(), "Normalization Values"),
m_ExtraInputs(saver, this, "extraInputs", QcepDoubleList(), "Extra Input Values"),
m_Used(saver, this, "used", true, "Image Used?"),
m_ImageCounter(allocCount.fetchAndAddOrdered(1)),
m_Mutex(QMutex::Recursive),
m_Saver(saver)
{
set_Type("Image");
if (qcepDebug(DEBUG_IMAGE_CONSTRUCTORS)) {
printf("QcepImageDataBase::QcepImageDataBase(%p)\n", this);
}
QcepAllocator::allocate(size);
}
void SC_JackDriver::Run()
{
jack_client_t* client = mClient;
World* world = mWorld;
#ifdef SC_JACK_USE_DLL
mDLL.Update(secondsSinceEpoch(getTime()));
#if SC_JACK_DEBUG_DLL
static int tick = 0;
if (++tick >= 10) {
tick = 0;
scprintf("DLL: t %.6f p %.9f sr %.6f e %.9f avg(e) %.9f inc %.9f\n",
mDLL.PeriodTime(), mDLL.Period(), mDLL.SampleRate(),
mDLL.Error(), mDLL.AvgError(), mOSCincrement * kOSCtoSecs);
}
#endif
#else
HostTime hostTime = getTime();
double hostSecs = secondsSinceEpoch(hostTime);
double sampleTime = (double)(jack_frame_time(client) + jack_frames_since_cycle_start(client));
if (mStartHostSecs == 0) {
mStartHostSecs = hostSecs;
mStartSampleTime = sampleTime;
} else {
double instSampleRate = (sampleTime - mPrevSampleTime) / (hostSecs - mPrevHostSecs);
double smoothSampleRate = mSmoothSampleRate;
smoothSampleRate = smoothSampleRate + 0.002 * (instSampleRate - smoothSampleRate);
if (fabs(smoothSampleRate - mSampleRate) > 10.) {
smoothSampleRate = mSampleRate;
}
mOSCincrement = (int64)(mOSCincrementNumerator / smoothSampleRate);
mSmoothSampleRate = smoothSampleRate;
#if 0
double avgSampleRate = (sampleTime - mStartSampleTime)/(hostSecs - mStartHostSecs);
double jitter = (smoothSampleRate * (hostSecs - mPrevHostSecs)) - (sampleTime - mPrevSampleTime);
double drift = (smoothSampleRate - mSampleRate) * (hostSecs - mStartHostSecs);
#endif
}
mPrevHostSecs = hostSecs;
mPrevSampleTime = sampleTime;
#endif
try {
mFromEngine.Free();
mToEngine.Perform();
mOscPacketsToEngine.Perform();
int numInputs = mInputList->mSize;
int numOutputs = mOutputList->mSize;
jack_port_t **inPorts = mInputList->mPorts;
jack_port_t **outPorts = mOutputList->mPorts;
sc_jack_sample_t **inBuffers = mInputList->mBuffers;
sc_jack_sample_t **outBuffers = mOutputList->mBuffers;
int numSamples = NumSamplesPerCallback();
int bufFrames = mWorld->mBufLength;
int numBufs = numSamples / bufFrames;
float *inBuses = mWorld->mAudioBus + mWorld->mNumOutputs * bufFrames;
float *outBuses = mWorld->mAudioBus;
int32 *inTouched = mWorld->mAudioBusTouched + mWorld->mNumOutputs;
int32 *outTouched = mWorld->mAudioBusTouched;
int minInputs = sc_min(numInputs, (int)mWorld->mNumInputs);
int minOutputs = sc_min(numOutputs, (int)mWorld->mNumOutputs);
int bufFramePos = 0;
// cache I/O buffers
for (int i = 0; i < minInputs; ++i) {
inBuffers[i] = (sc_jack_sample_t*)jack_port_get_buffer(inPorts[i], numSamples);
}
for (int i = 0; i < minOutputs; ++i) {
outBuffers[i] = (sc_jack_sample_t*)jack_port_get_buffer(outPorts[i], numSamples);
}
// main loop
#ifdef SC_JACK_USE_DLL
int64 oscTime = mOSCbuftime = (int64)((mDLL.PeriodTime() - mMaxOutputLatency) * kSecondsToOSCunits + .5);
// int64 oscInc = mOSCincrement = (int64)(mOSCincrementNumerator / mDLL.SampleRate());
int64 oscInc = mOSCincrement = (int64)((mDLL.Period() / numBufs) * kSecondsToOSCunits + .5);
mSmoothSampleRate = mDLL.SampleRate();
double oscToSamples = mOSCtoSamples = mSmoothSampleRate * kOSCtoSecs /* 1/pow(2,32) */;
#else
int64 oscTime = mOSCbuftime = OSCTime(hostTime) - (int64)(mMaxOutputLatency * kSecondsToOSCunits + .5);
int64 oscInc = mOSCincrement;
double oscToSamples = mOSCtoSamples;
#endif
for (int i = 0; i < numBufs; ++i, mWorld->mBufCounter++, bufFramePos += bufFrames) {
int32 bufCounter = mWorld->mBufCounter;
int32 *tch;
// copy+touch inputs
tch = inTouched;
for (int k = 0; k < minInputs; ++k) {
sc_jack_sample_t *src = inBuffers[k] + bufFramePos;
float *dst = inBuses + k * bufFrames;
for (int n = 0; n < bufFrames; ++n) {
*dst++ = *src++;
}
*tch++ = bufCounter;
}
// run engine
int64 schedTime;
int64 nextTime = oscTime + oscInc;
while ((schedTime = mScheduler.NextTime()) <= nextTime) {
float diffTime = (float)(schedTime - oscTime) * oscToSamples + 0.5;
float diffTimeFloor = floor(diffTime);
world->mSampleOffset = (int)diffTimeFloor;
world->mSubsampleOffset = diffTime - diffTimeFloor;
if (world->mSampleOffset < 0) world->mSampleOffset = 0;
else if (world->mSampleOffset >= world->mBufLength) world->mSampleOffset = world->mBufLength-1;
SC_ScheduledEvent event = mScheduler.Remove();
event.Perform();
}
world->mSampleOffset = 0;
world->mSubsampleOffset = 0.f;
World_Run(world);
// copy touched outputs
tch = outTouched;
for (int k = 0; k < minOutputs; ++k) {
sc_jack_sample_t *dst = outBuffers[k] + bufFramePos;
if (*tch++ == bufCounter) {
float *src = outBuses + k * bufFrames;
for (int n = 0; n < bufFrames; ++n) {
*dst++ = *src++;
}
} else {
for (int n = 0; n < bufFrames; ++n) {
*dst++ = 0.0f;
}
}
}
// advance OSC time
mOSCbuftime = oscTime = nextTime;
}
} catch (std::exception& exc) {
scprintf("%s: exception in real time: %s\n", kJackDriverIdent, exc.what());
} catch (...) {
scprintf("%s: unknown exception in real time\n", kJackDriverIdent);
}
double cpuUsage = (double)jack_cpu_load(mClient);
mAvgCPU = mAvgCPU + 0.1 * (cpuUsage - mAvgCPU);
if (cpuUsage > mPeakCPU || --mPeakCounter <= 0) {
mPeakCPU = cpuUsage;
mPeakCounter = mMaxPeakCounter;
}
mAudioSync.Signal();
}
