private Bitmap ReadInput(BitmapPinRequest req)
{
Bitmap bmp;
Stopwatch sw = new Stopwatch();
sw.Start();
bmp = inputPin.Read <Bitmap>(req);
sw.Stop();
renderTime = sw.ElapsedTicks / (double)Stopwatch.Frequency * 1000;
return(bmp);
}
public override object GetPinValue(Pin pin, PinRequest request)
{
if (pin == outputPin)
{
if (!string.IsNullOrEmpty(fileName) && File.Exists(fileName) && (cachedBmp == null || cachedBmpName != fileName))
{
try {
cachedBmp = new Bitmap(fileName);
cachedBmpName = fileName;
} catch {
if (cachedSizedBmp != null)
{
cachedSizedBmp.Dispose();
}
if (cachedBmp != null)
{
cachedBmp.Dispose();
}
cachedSizedBmp = null;
cachedBmp = null;
cachedBmpName = null;
}
}
if (cachedBmp != null)
{
BitmapPinRequest bp = request as BitmapPinRequest;
if (bp != null)
{
if (cachedSizedBmp != null)
{
lock (cachedSizedBmp) {
if (cachedSizedBmp.Size == bp.DesiredSize)
{
return(new Bitmap(cachedSizedBmp));
}
else
{
cachedSizedBmp.Dispose();
cachedSizedBmp = null;
}
}
}
Debug.Print("Recaching bitmap {0}", bp.DesiredSize);
cachedSizedBmp = new Bitmap(cachedBmp, bp.DesiredSize);
return(new Bitmap(cachedSizedBmp));
}
return(new Bitmap(cachedBmp));
}
}
return(null);
}
void DoUpdate(Object obj)
{
if (busyUpdating)
{
return;
}
lock (inputPin) {
busyUpdating = true;
BitmapPinRequest req = new BitmapPinRequest();
req.Time = (DateTime.Now - startTime).TotalSeconds;
req.DesiredSize = desiredSize;
Bitmap bmp = ReadInput(req);
bitmapWin.PBitmap = bmp;
bitmapWin.Invalidate();
busyUpdating = false;
}
}