public int Peek(TimeLocatedBuffer buffer, int length = -1)
{
lock (this) {
if (buffer.Samplerate != _rate)
{
throw new InvalidOperationException();
}
if (length == -1)
{
length = buffer.GetSamples().Length;
}
else if (length > buffer.Length)
{
length = buffer.Length;
}
var begin = BeginTime;
var result = Peek(buffer.GetSamples(), 0, length);
buffer.SetWritten(result);
buffer.SetTime(begin.Add(result, _rate));
return(result);
}
}
public int Enqueue(TimeLocatedBuffer buffer, int offset, int sampleCount)
{
lock (this) {
if (buffer.Samplerate != _rate)
{
throw new InvalidOperationException();
}
var samples = buffer.GetSamples();
var written = Enqueue(samples, offset, sampleCount);
_timeBufEnd = _timeBufEnd.Add(written, _rate);
var newEndTime = buffer.FrontTime.Add(offset + written, _rate);
if (!newEndTime.Equals(_timeBufEnd))
{
if (!IgnoreOverflow)
{
// TODO: Commented out for the moment.
// FFT and Data use different time counting mechanisms.
// Enqueue uses the counting mechanism of time data.
// So this gives false error reports.
// Need to replace the node system with a good one.
//NodeSystemSettings.Instance.SystemHost.ReportError($"Ring Buffer: Missing samples. Buffer Timestamp: { newEndTime } \t Ring Timestamp: { _timeBufEnd }");
}
_timeBufEnd = new TimeStamp(newEndTime);
}
return(written);
}
}
public void PostData(OutputPort port, TimeLocatedBuffer buffer)
{
var output = _outputs[port];
if (!output.IsDone)
{
throw new InvalidOperationException("can't change buffer before sent");
}
output.SetBuffer(buffer);
}
public TimeLocatedBuffer(TimeLocatedBuffer cp)
{
_buffer = new double[cp._buffer.Length];
_writtenSamples = cp._writtenSamples;
CurrentTime = cp.CurrentTime;
Samplerate = cp.Samplerate;
Array.Copy(
destinationArray: _buffer,
sourceArray: cp._buffer,
length: cp._buffer.Length
);
}
public void SendData(TimeLocatedBuffer data)
{
//foreach (var input in Connections) {
// var port = (DataInputPort)input;
// if (port.Queue.Capacity - port.Queue.Length < data.WrittenSamples) {
// while (port.Queue.Capacity - port.Queue.Length < data.WrittenSamples) {
// //System.Diagnostics.Debug.WriteLine("Waiting for the next port...");
// System.Threading.Thread.Sleep(1);
// }
// }
// port.RecieveData(data);
//}
Graph.PostData(this, data);
}
public void SetBuffer(TimeLocatedBuffer buf)
{
lock (_dataLock) {
if (buf == null)
{
throw new InvalidOperationException("Can't be null");
}
Data = buf;
for (int i = 0; i < TargetWrittenTo.Length; i++)
{
TargetWrittenTo[i] = 0;
}
_dataDone = false;
}
}
public int Dequeue(TimeLocatedBuffer buffer, int length = -1)
{
lock (this) {
var result = Peek(buffer, length);
Skip(result);
return(result);
//if (length == -1) length = buffer.GetSamples().Length;
//if (buffer.Samplerate != _rate) throw new InvalidOperationException();
//var begin = BeginTime;
//var result = Peek(buffer.GetSamples(), 0, length);
//Skip(result);
//buffer.SetWritten(result);
//buffer.SetTime(begin.Add(result, _rate));
//return result;
}
}
public int RecieveData(TimeLocatedBuffer buf, int offset, int sampleCount)
{
if (buf.Length % (_fftSize / 2) != 0)
{
throw new FFTDataLengthException();
}
if (Queue.Length == Queue.Capacity)
{
NodeSystemSettings.Instance.SystemHost.ReportError(Parent, "Data Input: Buffer full. Data loss. Stopping");
NodeSystemSettings.Instance.SystemHost.StopProcessing();
return(-1);
}
else
{
var written = Queue.Enqueue(buf, offset, sampleCount);
DataAvailable?.Invoke(this, Queue.Length);
return(written);
}
}
public int RecieveData(TimeLocatedBuffer buf, int offset, int sampleCount)
{
if (Queue == null)
{
NodeSystemSettings.Instance.SystemHost.ReportError(Parent, "Data Input: Buffer not initialized");
NodeSystemSettings.Instance.SystemHost.StopProcessing();
return(-1);
}
else if (Queue.Length == Queue.Capacity)
{
NodeSystemSettings.Instance.SystemHost.ReportError(Parent, "Data Input: Buffer full. Data loss. Stopping");
NodeSystemSettings.Instance.SystemHost.StopProcessing();
return(-1);
}
else
{
var written = Queue.Enqueue(buf, offset, sampleCount);
DataAvailable?.Invoke(this, Queue.Length);
return(written);
}
}
public bool InitBuffer(int queueSamples = -1, int bufferSamples = -1)
{
try {
if (Queue == null || Queue.Samplerate != Samplerate || (queueSamples >= 0 && Queue.Capacity < queueSamples))
{
Queue = new SignalRingBuffer(queueSamples < 0 ? NodeSystemSettings.Instance.SystemHost.GetDefaultRingBufferSize(Samplerate) : queueSamples, Samplerate);
}
if (Buffer == null || Buffer.Samplerate != Samplerate || (bufferSamples >= 0 && Buffer.Length < bufferSamples))
{
Buffer = TimeLocatedBuffer.Default(Samplerate);
}
Queue.Clear();
Buffer.SetTime(TimeStamp.Zero());
return(true);
} catch (Exception e) {
NodeSystemSettings.Instance.SystemHost.ReportError(Parent, $"InitBuffer of {Parent.Name}: {e}");
return(false);
}
}
public void SendData(TimeLocatedBuffer data)
{
Graph.PostData(this, data);
}
public void PostData(OutputPort port, TimeLocatedBuffer buffer)
{
_processor.PostData(port, buffer);
}
/// <summary>
///
/// </summary>
/// <param name="buf"></param>
/// <returns>Returns number of samples taken from buffer</returns>
public int RecieveData(TimeLocatedBuffer buf)
{
return(RecieveData(buf, 0, buf.WrittenSamples));
}
public int Enqueue(TimeLocatedBuffer buffer)
{
return(Enqueue(buffer, 0, buffer.WrittenSamples));
}
