private void DoUpdateImage(TIS.Imaging.IFrame buffer)
{
int bufferWidth = buffer.FrameType.Width;
int bufferHeight = buffer.FrameType.Height;
PixelFormat bufferFormat = PixelFormatFromFrameType(buffer.FrameType);
if ((_source == null) ||
(_source.PixelWidth != bufferWidth) ||
(_source.PixelHeight != bufferHeight) ||
(_source.Format != bufferFormat))
{
_source = CreateBackBuffer(bufferWidth, bufferHeight, bufferFormat);
CopyImageBufferToWritableBitmap(buffer, _source);
display.Source = _source;
}
else
{
CopyImageBufferToWritableBitmap(buffer, _source);
}
if (_overlayAdorner != null)
{
_overlayAdorner.InvalidateVisual();
}
IsSourceBottomUp = buffer.FrameType.IsBottomUp;
UpdateFlip();
}
public void UpdateImage(TIS.Imaging.IFrame buffer)
{
if (display.Dispatcher.CheckAccess())
{
DoUpdateImage(buffer);
}
else
{
if ((_updateImageOperation != null) && (_updateImageOperation.Status != System.Windows.Threading.DispatcherOperationStatus.Completed))
{
return;
}
_updateImageOperation = display.Dispatcher.BeginInvoke(new Action(() => DoUpdateImage(buffer)));
}
}
private static void CopyImageBufferToWritableBitmap(TIS.Imaging.IFrame buffer, WriteableBitmap wb)
{
var rect = new Int32Rect(0, 0, buffer.FrameType.Width, buffer.FrameType.Height);
wb.WritePixels(rect, buffer.GetIntPtr(), buffer.FrameType.BufferSize, buffer.FrameType.BytesPerLine);
}
