private void ExposureThread()
{
while (true)
{
bool success;
try
{
success = this.semaphore.WaitOne();
}
catch
{
success = false;
}
if (!success || !this.threadRunning)
{
cameraState = CameraStates.cameraIdle; break;
}
int startX = this.startX;
int startY = this.startY;
int numX = this.numX;
int numY = this.numY;
HashSet <string> states = new HashSet <string>();
while (this.threadRunning)
{
ComPort.Response response = this.comPort.State(states);
LogMessage("ExposureThread", response.ToString());
if (response != ComPort.Response.OK)
{
success = false; break;
}
if (!states.Contains(ComPort.Exposure))
{
break;
}
cameraState = CameraStates.cameraExposing; Thread.Sleep(1);
}
if (!this.threadRunning)
{
this.cameraState = CameraStates.cameraIdle; break;
}
if (success && this.exposureStart > this.exposureAbort)
{
this.cameraState = CameraStates.cameraReading;
this.imageReady = this.webcam.Capture(out this.imageArray, startX, startY, numX, numY);
}
this.cameraState = CameraStates.cameraIdle;
}
}
public void StartExposure(double Duration, bool Light)
{
this.CheckConnected("StartExposure");
if (Duration < this.exposureMin || this.exposureMax < Duration)
{
if (Duration != 0)
{
throw new InvalidValueException("StartExposure", Duration.ToString(), exposureMin.ToString(), exposureMax.ToString());
}
Duration = exposureMin;
}
if (this.startX < 0 || this.cameraXSize <= this.startX)
{
throw new InvalidValueException("StartExposure", this.startX.ToString(), "0", (this.cameraXSize - 1).ToString());
}
if (this.startY < 0 || this.cameraYSize <= this.startY)
{
throw new InvalidValueException("StartExposure", this.startY.ToString(), "0", (this.cameraYSize - 1).ToString());
}
if (this.numX < 1 || this.cameraXSize - this.startX < this.numX)
{
throw new InvalidValueException("StartExposure", this.numX.ToString(), "1", (this.cameraXSize - this.startX).ToString());
}
if (this.numY < 1 || this.cameraYSize - this.startY < this.numY)
{
throw new InvalidValueException("StartExposure", this.numY.ToString(), "1", (this.cameraYSize - this.startY).ToString());
}
ComPort.Response response = this.comPort.Start((int)(Duration * 1000 + 0.5));
LogMessage("StartExposure", response.ToString());
if (response.Reply != "OK")
{
throw new InvalidOperationException("StartExposure");
}
this.exposureDuration = Duration;
this.exposureStart = DateTime.Now;
this.imageReady = false;
this.imageArray = null;
this.cameraState = CameraStates.cameraWaiting;
try
{
this.semaphore.Release();
}
catch
{
}
}
public void StopExposure()
{
this.CheckConnected("StopExposure");
if (this.cameraState != CameraStates.cameraIdle)
{
ComPort.Response response = this.comPort.Stop();
LogMessage("StopExposure", response.ToString());
if (response.Reply != "OK")
{
throw new InvalidOperationException("StopExposure");
}
}
}
