internal override void read(short[,] data, int numChannelsData, int startChannelData, int length)
{
unsafe
{
fixed(short *pdata = &data[0, 0], pbuffer = &_buffer[0, 0])
{
for (int c = startChannelData; c < startChannelData + numChannelsData; ++c)
{
int baseOfDimData = (c - startChannelData) * length; //BaseOfDim is in ref to input data, which has no channel offset
int baseOfDimBuffer = (MEAChannelMappings.channel2LinearCR(c) - 1) * BUFFER_LENGTH;
//Check to see if we'll loop back to front of buffer here, rather than wasting an if statement in the loop
if (_currentLocationRead[c] + length < BUFFER_LENGTH)
{
//Check for buffer overrun
if (_currentLocationWrite[c] > _currentLocationRead[c])
{
if (_currentLocationWrite[c] - _currentLocationRead[c] < length)
{
System.Windows.Forms.MessageBox.Show("Buffer Overrun");
}
}
//We can copy blithely, without worry of looping back around
for (int i = 0; i < length; ++i)
{
pbuffer[baseOfDimBuffer + _currentLocationRead[c]++] = pdata[baseOfDimData + i];
//if (_currentLocationRead[c] != _currentLocationWrite[c]) { /* do nothing */}
//else
// System.Windows.Forms.MessageBox.Show("Buffer Overrun");
}
}
else
{
//Check for buffer overruns
if (_currentLocationWrite[c] > _currentLocationRead[c])
{
//Since we're guaranteed to go to end of buffer, if write head is higher, we will overrun
System.Windows.Forms.MessageBox.Show("Buffer Overrun");
}
int firstDistance = BUFFER_LENGTH - _currentLocationRead[c];
for (int i = 0; i < firstDistance; ++i)
{
pbuffer[baseOfDimBuffer + _currentLocationRead[c]++] = pdata[baseOfDimData + i];
}
_currentLocationRead[c] = 0; //Reset read head
if (_currentLocationWrite[c] < length - firstDistance)
{
System.Windows.Forms.MessageBox.Show("Buffer Overrun");
}
for (int i = firstDistance; i < length; ++i)
{
pbuffer[baseOfDimBuffer + _currentLocationRead[c]++] = pdata[baseOfDimData + i];
}
//for (int i = 0; i < length; ++i)
//{
// pbuffer[baseOfDimBuffer + _currentLocationRead[c]] = pdata[baseOfDimData + i];
// if (++_currentLocationRead[c] < BUFFER_LENGTH) { /* do nothing */ }
// else { _currentLocationRead[c] = 0; }
// if (_currentLocationRead[c] != _currentLocationWrite[c]) { /* do nothing */}
// else
// System.Windows.Forms.MessageBox.Show("Buffer Overrun");
//}
}
}
}
}
//for (int c = 0; c < numChannelsData; ++c)
//{
// //Check to see if we'll loop back to front of buffer here, rather than wasting an if statement in the loop
// if (_currentLocationRead[startChannelData + c] + length < BUFFER_LENGTH)
// {
// //We can copy blithely, without worry of looping back around
// for (int i = 0; i < length; ++i)
// {
// _buffer[startChannelData + c][_currentLocationRead[startChannelData + c]++] = data[c, i];
// if (_currentLocationRead[c] != _currentLocationWrite[c]) { /* do nothing */}
// else
// System.Windows.Forms.MessageBox.Show("Buffer Overrun");
// }
// }
// else
// {
// for (int i = 0; i < length; ++i)
// {
// _buffer[startChannelData + c][_currentLocationRead[startChannelData + c]] = data[c, i];
// if (++_currentLocationRead[startChannelData + c] < BUFFER_LENGTH) { /* do nothing */ }
// else { _currentLocationRead[startChannelData + c] = 0; }
// if (_currentLocationRead[c] != _currentLocationWrite[c]) { /* do nothing */}
// else
// System.Windows.Forms.MessageBox.Show("Buffer Overrun");
// }
// }
//}
}
//DateTime spkClk;
private void bwSpikes_DoWork(object sender, DoWorkEventArgs e)
{
//spkClk = DateTime.Now;
Object[] state = (Object[])e.Argument;
int taskNumber = (int)state[0];
//Debugger.Write(taskNumber.ToString() + ": dowork begin");
trackingProc[taskNumber]++;
//double[][] filtSpikeData;
//Copy data into a new buffer
for (int i = 0; i < numChannelsPerDev; ++i)
{
spikeData[taskNumber][i].GetRawData(0, spikeBufferLength, filtSpikeData[taskNumber * numChannelsPerDev + i], 0);
}
//Debugger.Write(taskNumber.ToString() + ": raw data read");
// Increment the number of times the DAQ has been polled for spike data
++(numSpikeReads[taskNumber]);
ulong startTime = (ulong)(numSpikeReads[taskNumber] - 1) * (ulong)spikeBufferLength; //Used to mark spike time for *.spk file
//Account for Pre-amp gain
double ampdec = (1 / Properties.Settings.Default.PreAmpGain);
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
for (int j = 0; j < spikeBufferLength; ++j)
{
filtSpikeData[i][j] = ampdec * filtSpikeData[i][j];
}
}
// Send filtSpikeData to datSrv
if (Properties.Settings.Default.useRawDataBuffer)
{
datSrv.RawElectrodeSrv.WriteToBuffer(filtSpikeData, taskNumber, numChannelsPerDev);
}
// Debugger.Write(taskNumber.ToString() + ": raw data sent to rawsrv");
#region Write RAW data
//Write data to file
if (switch_record.Value && recordingSettings.recordRaw && spikeTask != null)
{
lock (recordingSettings.rawOut)
{
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
// Temporary storage for converte data
Int16[] tempBuff;
// Convert raw data to 16-bit int
tempBuff = neuralDataScaler.ConvertSoftRawRowToInt16(ref filtSpikeData[i]);
// Send data to file writer
for (int j = 0; j < spikeBufferLength; ++j)
{
recordingSettings.rawOut.read(tempBuff[j], i);
}
}
}
}
#endregion
// Debugger.Write(taskNumber.ToString() + ": raw written");
#region Raw Spike Detection
if (recordingSettings.recordRawSpike)
{
lock (rawSpikeObj)
{
//newWaveforms: 0 based indexing for internal NR processing (datSrv, plotData)
EventBuffer <SpikeEvent> newWaveformsRaw = new EventBuffer <SpikeEvent>(Properties.Settings.Default.RawSampleFrequency);
switch (spikeDet.detectorType)
{
case 0:
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
newWaveformsRaw.Buffer.AddRange(spikeDet.spikeDetectorRaw.DetectSpikes(filtSpikeData[i], i, startTime));
}
break;
case 1:
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
newWaveformsRaw.Buffer.AddRange(spikeDet.spikeDetectorRaw.DetectSpikesSimple(filtSpikeData[i], i, startTime));
}
break;
}
//Extract waveforms, convert to 1 based indexing
EventBuffer <SpikeEvent> toRawsrvRaw = new EventBuffer <SpikeEvent>(spikeSamplingRate);
if (Properties.Settings.Default.ChannelMapping != "invitro") //|| numChannels != 64) //check this first, so we don't have to check it for each spike
{
for (int j = 0; j < newWaveformsRaw.Buffer.Count; ++j) //For each threshold crossing
{
SpikeEvent tmp = (SpikeEvent)newWaveformsRaw.Buffer[j].DeepClone();
tmp.Channel = InVivoChannelMappings.Channel2LinearCR(tmp.Channel);
toRawsrvRaw.Buffer.Add(tmp);
}
}
else //in vitro mappings
{
for (int j = 0; j < newWaveformsRaw.Buffer.Count; ++j) //For each threshold crossing
{
SpikeEvent tmp = (SpikeEvent)newWaveformsRaw.Buffer[j].DeepClone();
tmp.Channel = MEAChannelMappings.channel2LinearCR(tmp.Channel);
toRawsrvRaw.Buffer.Add(tmp);
}
}
// Record spike waveforms
if (switch_record.Value)
{
for (int j = 0; j < newWaveformsRaw.Buffer.Count; ++j) //For each threshold crossing
{
SpikeEvent tmp = toRawsrvRaw.Buffer[j];
lock (recordingSettings.spkOutRaw) //Lock so another NI card doesn't try writing at the same time
{
recordingSettings.spkOutRaw.WriteSpikeToFile((short)tmp.Channel, (int)tmp.SampleIndex,
tmp.Threshold, tmp.Waveform, tmp.Unit);
}
}
}
}
}
#endregion
// Debugger.Write(taskNumber.ToString() + ": raw spikes filtered");
#region LFP_Filtering
//Filter for LFPs
if (!Properties.Settings.Default.SeparateLFPBoard && Properties.Settings.Default.UseLFPs)
{
//Copy to new array
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
for (int j = 0; j < spikeBufferLength; ++j)
{
filtLFPData[i][j] = filtSpikeData[i][j];
}
}
#region ArtiFilt (interpolation filtering)
if (checkBox_artiFilt.Checked)
{
artiFilt.filter(ref filtLFPData, stimIndices, taskNumber * numChannelsPerDev, numChannelsPerDev, numStimReads[taskNumber] - 1);
}
#endregion
if (checkBox_LFPsFilter.Checked)
{
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
lfpFilter[i].filterData(filtLFPData[i]);
}
}
//Downsample for LFPs
double dsFactor = (double)spikeSamplingRate / (double)lfpSamplingRate;
if (dsFactor % 1 == 0) //If it's an integer
{
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
for (int j = 0; j < lfpBufferLength; ++j)
{
finalLFPData[i][j] = filtLFPData[i][(int)(dsFactor * j)];
}
}
}
else
{
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
for (int j = 0; j < lfpBufferLength; ++j)
{
finalLFPData[i][j] = filtLFPData[i][(int)(Math.Round(dsFactor * j))];
}
}
}
//Do IISZapper stuff
if (IISDetected != null)
{
IISDetected(this, finalLFPData, numSpikeReads[taskNumber]);
}
// Send to datSrv
if (Properties.Settings.Default.useLFPDataBuffer)
{
datSrv.LFPSrv.WriteToBuffer(finalLFPData, 0, numChannels);
}
#region WriteLFPFile
if (switch_record.Value && recordingSettings.recordLFP && spikeTask != null) //Convert to 16-bit ints, then write to file
{
for (int i = taskNumber * numChannelsPerDev; i < (taskNumber + 1) * numChannelsPerDev; ++i)
{
// Temporary storage for converte data
Int16[] tempLFPBuff;
// Convert raw data to 16-bit int
tempLFPBuff = neuralDataScaler.ConvertSoftRawRowToInt16(ref finalLFPData[i]);
// Send data to file writer
for (int j = 0; j < lfpBufferLength; ++j)
{
recordingSettings.lfpOut.read((short)tempLFPBuff[j], i);
}
}
}
#endregion
//Digital ref LFP signals
if (!checkBox_digRefLFPs.Checked) /* Do nothing, since prefetch makes if faster than else */ } {
internal override void read(short data, int channel)
{
_buffer[MEAChannelMappings.channel2LinearCR(channel) - 1, _currentLocationRead[channel]] = data;
if (++_currentLocationRead[channel] < BUFFER_LENGTH) /* do nothing */ } {