private void deviceThread()
{
List <Fmd> preenrollmentFmds = new List <Fmd>();
Reader activeReader = null;
CaptureResult captureResult;
STATE state = STATE.IDLE;
COMMAND com = COMMAND.NONE;
int enrollCount = 0;
try
{
ReaderCollection readers = ReaderCollection.GetReaders();
foreach (var reader in readers)
{
if (reader.Description.Name == Id)
{
activeReader = reader;
break;
}
}
if (activeReader != null)
{
activeReader.Open(Constants.CapturePriority.DP_PRIORITY_EXCLUSIVE);
}
while (true)
{
cancelToken.Token.ThrowIfCancellationRequested();
if (state == STATE.IDLE)
{
com = queue.Take(cancelToken.Token);
}
else
{
// non blocking take
if (queue.Count > 0)
{
com = queue.Take();
}
}
StopOngoingStream(ref state, activeReader, com);
switch (com)
{
case COMMAND.LIVECAPTURE_START:
activeReader.StartStreaming();
state = STATE.TEST;
break;
case COMMAND.LIVECAPTURE_STOP:
state = STATE.IDLE;
break;
case COMMAND.SINGLECAPTURE_START:
state = STATE.GETSINGLE;
break;
case COMMAND.SINGLECAPTURE_STOP:
state = STATE.IDLE;
break;
case COMMAND.ENROLLMENT_START:
state = STATE.GETFINGER;
enrollCount = 0;
preenrollmentFmds.Clear();
resultBios.Clear();
break;
case COMMAND.ENROLLMENT_STOP:
state = STATE.IDLE;
break;
}
com = COMMAND.NONE;
switch (state)
{
case STATE.TEST:
SendBaseMessage("Please, touch the scanner");
captureResult = activeReader.GetStreamImage(Constants.Formats.Fid.ANSI, Constants.CaptureProcessing.DP_IMG_PROC_DEFAULT, activeReader.Capabilities.Resolutions[0]);
if (captureResult.ResultCode == Constants.ResultCode.DP_DEVICE_FAILURE || captureResult.ResultCode == Constants.ResultCode.DP_DEVICE_BUSY)
{
Console.WriteLine("DEVICE_FAILURE, perfoming RESET" + captureResult.ResultCode);
activeReader.Reset();
activeReader.StartStreaming();
break;
}
if (!CheckIfReaderIsOnline(captureResult, activeReader))
{
state = STATE.IDLE;
break;
}
if (captureResult.ResultCode == Constants.ResultCode.DP_SUCCESS)
{
OnBiometricsCaptured(new FingerImageDP(captureResult.Data));
}
else
{
System.Console.WriteLine(captureResult.ResultCode);
}
break;
case STATE.GETSINGLE:
state = STATE.GETSINGLEIMAGE;
SendBaseMessage("Please, touch the scanner");
break;
case STATE.GETSINGLEIMAGE:
captureResult = activeReader.Capture(Constants.Formats.Fid.ANSI, Constants.CaptureProcessing.DP_IMG_PROC_DEFAULT, 50, activeReader.Capabilities.Resolutions[0]);
if (!CheckIfReaderIsOnline(captureResult, activeReader))
{
state = STATE.IDLE;
break;
}
if (!CheckCaptureResult(captureResult))
{
break;
}
OnSingleCaptured(new FingerImageDP(captureResult.Data));
state = STATE.GETSINGLE;
break;
case STATE.GETFINGER:
SendBaseMessage("Put finger on the scanner and then lift it up, when Image is captured");
state = STATE.GETIMAGE;
break;
case STATE.GETIMAGE:
captureResult = activeReader.Capture(Constants.Formats.Fid.ANSI, Constants.CaptureProcessing.DP_IMG_PROC_DEFAULT, 50, activeReader.Capabilities.Resolutions[0]);
if (!CheckIfReaderIsOnline(captureResult, activeReader))
{
state = STATE.IDLE;
break;
}
if (!CheckCaptureResult(captureResult))
{
break;
}
FingerImageDP image = new FingerImageDP(captureResult.Data);
OnBiometricsCaptured(image);
enrollCount++;
OnSendProgressMessage(enrollCount * 20);
var template = _devControl.Extract(image);
if (template == null)
{
OnBiometricsEnrolled(null);
break;
}
preenrollmentFmds.Add((template as TemplateDP).fmd);
if (enrollCount > 4)
{
state = STATE.IDLE;
DataResult <Fmd> resultEnrollment = DPUruNet.Enrollment.CreateEnrollmentFmd(Constants.Formats.Fmd.ANSI, preenrollmentFmds);
if (resultEnrollment.ResultCode == Constants.ResultCode.DP_SUCCESS)
{
resultBios.Add(new TemplateDP(resultEnrollment.Data));
SendPopUpMessage("Successfully registered");
OnBiometricsEnrolled(resultBios.ToList());
break;
}
SendPopUpMessage("Can't create template, please repeat");
OnBiometricsEnrolled(null);
}
else
{
state = STATE.GETFINGER;
}
break;
case STATE.IDLE:
break;
}
}
}
catch
{
}
finally
{
activeReader.Reset();
}
}
private void OnSingleCaptured(FingerImageDP image)
{
Ambassador.AddMessage(new MBiometricsSingleCaptured(this, image));
}
