/*Summary
* The callback routine delegated to handleException.
*/
private void ThreadException()
{
sw.Stop();
CaptureEventArgs args = new CaptureEventArgs();
args.BytesCaptures = 0;
args.IsError = true;
CaptureCompleted?.Invoke(this, args);
xferRate = 0;
XferBytes = 0;
resultLength = 0;
bRunning = false;
}
private void RegisterCallbacks()
{
RegisterErrorCallback();
RegisterFocusStateChanged();
RegisterInterruptStartedCallback();
RegisterInterruptedCallback();
RegisterStateChangedCallback();
//Define capturing callback
_capturingCallback = (IntPtr main, IntPtr postview, IntPtr thumbnail, IntPtr userData) =>
{
Capturing?.Invoke(this, new CameraCapturingEventArgs(new StillImage(main),
postview == IntPtr.Zero ? null : new StillImage(postview),
thumbnail == IntPtr.Zero ? null : new StillImage(thumbnail)));
};
//Define captureCompleted callback
_captureCompletedCallback = _ =>
{
SetState(CameraState.Captured);
CaptureCompleted?.Invoke(this, EventArgs.Empty);
};
}
/// <summary>
/// Raises the <see cref="CaptureCompleted"/> event.
/// </summary>
/// <param name="e">The <see cref="Catel.Services.CameraOperationCompletedEventArgs"/> instance containing the event data.</param>
protected void RaiseCaptureCompleted(CameraOperationCompletedEventArgs e)
{
CaptureCompleted?.Invoke(this, e);
}
private unsafe void XferData(byte[][] cBufs, byte[][] xBufs, byte[][] oLaps)
{
int k = 0;
int len = 0;
XferBytes = 0;
sw.Restart();
while (bRunning)
{
// WaitForXfer
fixed(byte *tmpOvlap = oLaps[k])
{
OVERLAPPED *ovLapStatus = (OVERLAPPED *)tmpOvlap;
if (!bulkInEndPoint.WaitForXfer(ovLapStatus->hEvent, 500))
{
bulkInEndPoint.Abort();
PInvoke.WaitForSingleObject(ovLapStatus->hEvent, CyConst.INFINITE);
}
}
// FinishDataXfer
if (bulkInEndPoint.FinishDataXfer(ref cBufs[k], ref xBufs[k], ref len, ref oLaps[k]))
{
XferBytes += len;
}
k++;
if (k == QueueSz) // Only update displayed stats once each time through the queue
{
k = 0;
xferRate = (sw.ElapsedMilliseconds > 0) ? ((long)XferBytes / sw.ElapsedMilliseconds) : (long)XferBytes;
if (!continousMode)
{
sw.Stop();
bRunning = false;
}
/*if (continousMode)
* {
* Array.Clear(resultBuffer, 0, BufSz * QueueSz);
* }*/
for (int i = 0; i < xBufs.Length; i++)
{
Array.Copy(xBufs[i], 0, resultBuffer, BufSz * i, BufSz);
}
resultLength = (long)XferBytes;
CaptureEventArgs args = new CaptureEventArgs();
args.BytesCaptures = resultLength;
args.IsError = false;
syncContext.Post(e => CaptureCompleted?.Invoke(this, args), args);
if (continousMode)
{
Thread.Sleep(1);
}
}
if (continousMode)
{
len = BufSz;
Array.Clear(xBufs[k], 0, BufSz);
bulkInEndPoint.BeginDataXfer(ref cBufs[k], ref xBufs[k], ref len, ref oLaps[k]);
}
} // End infinite loop
}