public static uint IdentifyMatch(uint BSPHandle, int MaxFMRRequested, ref bioapi_input_bir ProcessedBIR, ref bioapi_identify_population Population, uint TotalNumberOfTemplates, uint MaxNumberOfResults, ref uint NumberOfResults, ref System.IntPtr Candidates, int Timeout)
{
return(NativeMethods.BioAPI_IdentifyMatch(BSPHandle, MaxFMRRequested, ref ProcessedBIR, ref Population, TotalNumberOfTemplates, 0, MaxNumberOfResults, ref NumberOfResults, ref Candidates, Timeout));
}
public static uint Process(uint BSPHandle, ref bioapi_input_bir CapturedBIR, ref int ProcessedBIR)
{
return(NativeMethods.BioAPI_Process(BSPHandle, ref CapturedBIR, IntPtr.Zero, ref ProcessedBIR));
}
public static uint VerifyMatch(uint BSPHandle, int MaxFMRRequested, ref bioapi_input_bir ProcessedBIR, ref bioapi_input_bir ReferenceTemplate, ref byte Result, ref int FMRAchieved)
{
return(NativeMethods.BioAPI_VerifyMatch(BSPHandle, MaxFMRRequested, ref ProcessedBIR, ref ReferenceTemplate, IntPtr.Zero, ref Result, ref FMRAchieved, IntPtr.Zero));
}
public static extern uint BioAPI_Verify(uint BSPHandle, int MaxFMRRequested, ref bioapi_input_bir ReferenceTemplate, byte Subtype, IntPtr AdaptedBIR, System.IntPtr Result, ref int FMRAchieved, IntPtr Payload, int Timeout, IntPtr AuditData);
public static uint CreateTemplate(uint BSPHandle, ref bioapi_input_bir CapturedBIR, ref int NewTemplate)
{
return(NativeMethods.BioAPI_CreateTemplate(BSPHandle, ref CapturedBIR, IntPtr.Zero, IntPtr.Zero, ref NewTemplate, IntPtr.Zero, IntPtr.Zero));
}
public static extern uint BioAPI_IdentifyMatch(uint BSPHandle, int MaxFMRRequested, ref bioapi_input_bir ProcessedBIR, ref bioapi_identify_population Population, uint TotalNumberOfTemplates, byte Binning, uint MaxNumberOfResults, ref uint NumberOfResults, ref System.IntPtr Candidates, int Timeout);
public static extern uint BioAPI_VerifyMatch(uint BSPHandle, int MaxFMRRequested, ref bioapi_input_bir ProcessedBIR, ref bioapi_input_bir ReferenceTemplate, IntPtr AdaptedBIR, ref byte Result, ref int FMRAchieved, IntPtr Payload);
public static extern uint BioAPI_Process(uint BSPHandle, ref bioapi_input_bir CapturedBIR, IntPtr OutputFormat, ref int ProcessedBIR);
public static extern uint BioAPI_CreateTemplate(uint BSPHandle, ref bioapi_input_bir CapturedBIR, IntPtr ReferenceTemplate, IntPtr OutputFormat, ref int NewTemplate, IntPtr Payload, IntPtr TemplateUUID);
private void deviceThread()
{
isThreadFinalized = false;
///
int enrollCount = 0;
stateCallBack = new BioAPI.GUI_STATE_CALLBACK(DeviceHi.GuiStateCallback);
streamingCallBack = new BioAPI.GUI_STREAMING_CALLBACK(DeviceHi.GuiStreamingCallback);
List <FingerTemplate> templates = new List <FingerTemplate>();
STATE state = STATE.IDLE;
COMMAND com = COMMAND.NONE;
int BirHandle = 0;
int intsize = Marshal.SizeOf(typeof(IntPtr));
uint res;
bioapi_data unitcontroldata;
bioapi_bir bir = new bioapi_bir();
int[] enrollmentBirHandle = new int[3];
int verifyEnrollBirHandle = 0;
byte enrollState = BioAPI.NO_PURPOSE_AVAILABLE;
unitcontroldata.Data = Marshal.AllocHGlobal(4 * intsize);
try
{
online = true;
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();
}
}
switch (com)
{
case COMMAND.LIVECAPTURE_START:
state = STATE.STARTTEST;
break;
case COMMAND.ENROLLMENT_START:
state = STATE.GETFINGER;
enrollCount = 0;
enrollState = BioAPI.PURPOSE_ENROLL;
templates.Clear();
break;
case COMMAND.SINGLECAPTURE_START:
state = STATE.GETSINGLE;
break;
case COMMAND.SINGLECAPTURE_STOP:
case COMMAND.LIVECAPTURE_STOP:
case COMMAND.ENROLLMENT_STOP:
BioAPI.Cancel(handle);
state = STATE.IDLE;
break;
}
com = COMMAND.NONE;
switch (state)
{
case STATE.IDLE:
Detach();
break;
case STATE.STARTTEST:
SendBaseMessage("Please, place finger on scanner");
state = STATE.TEST;
break;
case STATE.TEST:
Attach();
res = BioAPI.Capture(handle, BioAPI.PURPOSE_VERIFY, ref BirHandle, CaptureTimeout);
if (res == 0)
{
bioapi_input_bir captured_bir_data = new bioapi_input_bir();
int processed_bir = 0;
GCHandle tmpgch = GCHandle.Alloc(BirHandle, GCHandleType.Pinned);
captured_bir_data.Form = BioAPI.BIR_HANDLE_INPUT;
captured_bir_data.InputBIR.BIRinBSP = tmpgch.AddrOfPinnedObject();
BioAPI.Process(handle, ref captured_bir_data, ref processed_bir);
BioAPI.FreeBIRHandle(handle, BirHandle);
tmpgch.Free();
BioAPI.GetBIRFromHandle(handle, processed_bir, ref bir);
OnBiometricsCaptured(new FingerImageHi(bir));
Thread.Sleep(300);
BioAPI.Free(bir.BiometricData.Data);
BioAPI.Free(bir.SecurityBlock.Data);
}
else
{
if (((res & (uint)BioAPI.Error.TIMEOUT_EXPIRED) == (uint)BioAPI.Error.TIMEOUT_EXPIRED) ||
((res & (uint)BioAPI.Error.USER_CANCELLED) == (uint)BioAPI.Error.USER_CANCELLED))
{
// _log.Info(res.ToString() + " test capture error");
OnBiometricsCaptured(null);
}
else
{
online = false;
state = STATE.OFFLINE;
Ambassador.AddMessage(new MSignal(this, MSignal.SIGNAL.DEVICE_FAILURE));
}
}
break;
case STATE.GETSINGLE:
//SendBaseMessage("Please, select finger to enroll or place a finger on the FV scanner");
state = STATE.GETSINGLEIMAGE;
break;
case STATE.GETSINGLEIMAGE:
Attach();
res = BioAPI.Capture(handle,BioAPI.PURPOSE_VERIFY,ref BirHandle,CaptureTimeout);
if (res == 0)
{
bioapi_input_bir captured_bir_data = new bioapi_input_bir();
int processed_bir = 0;
GCHandle tmpgch = GCHandle.Alloc(BirHandle,GCHandleType.Pinned);
captured_bir_data.Form = BioAPI.BIR_HANDLE_INPUT;
captured_bir_data.InputBIR.BIRinBSP = tmpgch.AddrOfPinnedObject();
BioAPI.Process(handle,ref captured_bir_data,ref processed_bir);
BioAPI.FreeBIRHandle(handle,BirHandle);
tmpgch.Free();
BioAPI.GetBIRFromHandle(handle,processed_bir,ref bir);
Detach();
FingerImageHi catchedImage = new FingerImageHi(bir);
OnSingleCaptured(catchedImage);
Thread.Sleep(300);
BioAPI.Free(bir.BiometricData.Data);
BioAPI.Free(bir.SecurityBlock.Data);
}
else
{
if (((res & (uint)BioAPI.Error.TIMEOUT_EXPIRED) == (uint)BioAPI.Error.TIMEOUT_EXPIRED) ||
((res & (uint)BioAPI.Error.USER_CANCELLED) == (uint)BioAPI.Error.USER_CANCELLED))
{
// _log.Info(res.ToString() + " getsingleimage capture error");
}
else
{
online = false;
state = STATE.OFFLINE;
Ambassador.AddMessage(new MSignal(this,MSignal.SIGNAL.DEVICE_FAILURE));
}
}
break;
case STATE.GETFINGER:
SendBaseMessage("Please, place a finger on the FV scanner");
state = STATE.GETIMAGE;
break;
case STATE.GETIMAGE:
Attach();
res = BioAPI.Capture(handle,enrollState,ref BirHandle,CaptureTimeout);
if (res == 0)
{
bioapi_input_bir captured_bir_data = new bioapi_input_bir();
GCHandle tmpgch = GCHandle.Alloc(BirHandle,GCHandleType.Pinned);
captured_bir_data.Form = BioAPI.BIR_HANDLE_INPUT;
captured_bir_data.InputBIR.BIRinBSP = tmpgch.AddrOfPinnedObject();
if (enrollState == BioAPI.PURPOSE_ENROLL)
{
res = BioAPI.CreateTemplate(handle,ref captured_bir_data,ref enrollmentBirHandle[enrollCount]);
enrollCount++;
if (enrollCount == 2)
{
enrollState = BioAPI.PURPOSE_VERIFY;
}
}
else if (enrollState == BioAPI.PURPOSE_VERIFY)
{
res = BioAPI.Process(handle,ref captured_bir_data,ref verifyEnrollBirHandle);
enrollCount++;
}
tmpgch.Free();
BioAPI.GetBIRFromHandle(handle,BirHandle,ref bir);
OnBiometricsCaptured(new FingerImageHi(bir));
BioAPI.Free(bir.BiometricData.Data);
BioAPI.Free(bir.SecurityBlock.Data);
OnSendProgressMessage(enrollCount * 33);
if (enrollCount < 3)
{
state = STATE.GETEMPTY;
}
else
{
int FMRAchieved = 0;
byte matchResult = 0;
GCHandle gcverify,gcenroll;
bioapi_input_bir verify_input_bir = new bioapi_input_bir();
verify_input_bir.Form = BioAPI.BIR_HANDLE_INPUT;
gcverify = GCHandle.Alloc(verifyEnrollBirHandle,GCHandleType.Pinned);
verify_input_bir.InputBIR.BIRinBSP = gcverify.AddrOfPinnedObject();
bioapi_input_bir enroll_input_bir = new bioapi_input_bir();
enroll_input_bir.Form = BioAPI.BIR_HANDLE_INPUT;
gcenroll = GCHandle.Alloc(enrollmentBirHandle[0],GCHandleType.Pinned);
enroll_input_bir.InputBIR.BIRinBSP = gcenroll.AddrOfPinnedObject();
res = BioAPI.VerifyMatch(handle,2072,ref verify_input_bir,ref enroll_input_bir,ref matchResult,ref FMRAchieved);
gcenroll.Free();
if ((res == 0) && (matchResult != 0))
{
enroll_input_bir.Form = BioAPI.BIR_HANDLE_INPUT;
gcenroll = GCHandle.Alloc(enrollmentBirHandle[1],GCHandleType.Pinned);
enroll_input_bir.InputBIR.BIRinBSP = gcenroll.AddrOfPinnedObject();
res = BioAPI.VerifyMatch(handle,2072,ref verify_input_bir,ref enroll_input_bir,ref matchResult,ref FMRAchieved);
gcenroll.Free();
}
gcverify.Free();
if ((res == 0) && (matchResult != 0))
{
res = BioAPI.GetBIRFromHandle(handle,enrollmentBirHandle[1],ref bir);
TemplateHi template = new TemplateHi(bir);
BioAPI.Free(bir.BiometricData.Data);
BioAPI.Free(bir.SecurityBlock.Data);
templates.Add(template);
state = STATE.FINISHENROLL;
}
else
{
state = STATE.FINISHENROLL;
BioAPI.FreeBIRHandle(handle,enrollmentBirHandle[1]);
}
BioAPI.FreeBIRHandle(handle,enrollmentBirHandle[0]);
BioAPI.FreeBIRHandle(handle,verifyEnrollBirHandle);
}
}
else if (((res & (uint)BioAPI.Error.TIMEOUT_EXPIRED) == (uint)BioAPI.Error.TIMEOUT_EXPIRED) ||
((res & (uint)BioAPI.Error.USER_CANCELLED) == (uint)BioAPI.Error.USER_CANCELLED))
{
// _log.Info(res.ToString() + " getimage capture error");
}
else
{
online = false;
state = STATE.OFFLINE;
for (int i = 0; i < enrollCount; i++)
{
BioAPI.FreeBIRHandle(handle,enrollmentBirHandle[i]);
}
Ambassador.AddMessage(new MSignal(this,MSignal.SIGNAL.DEVICE_FAILURE));
}
break;
case STATE.GETEMPTY:
SendPopUpMessage("Please remove finger from scanner");
Attach();
res = BioAPI.Capture(handle,BioAPI.PURPOSE_ENROLL,ref BirHandle,CaptureTimeout);
if (res != 0)
{
state = STATE.GETFINGER;
}
else
{
BioAPI.FreeBIRHandle(handle,BirHandle);
}
break;
case STATE.GETEMPTYIMAGE:
break;
case STATE.FINISHENROLL:
state = STATE.IDLE;
if (templates.Count() > 0)
{
SendPopUpMessage("Successfully registered");
OnBiometricsEnrolled(templates.ToList());
}
else
{
SendPopUpMessage("Registration failed");
OnBiometricsEnrolled(null);
}
break;
default:
break;
}
}
}
catch (Exception e)
{
_log.Error(e.Message);
}
finally
{
Detach();
isThreadFinalized = true;
}
}