private void InternalStop()
{
if (_retrieveThreadPool != null)
{
_retrieveThreadPool.Stop(false);
_retrieveThreadPool = null;
}
if (_imageBoxEnumerator != null)
{
_imageBoxEnumerator.Dispose();
_imageBoxEnumerator = null;
}
}
private void InternalStart()
{
int retrieveConcurrency = Prefetch.Default.RetrieveConcurrency;
if (retrieveConcurrency == 0)
return;
_imageBoxEnumerator = new ViewerFrameEnumerator(ImageViewer,
Math.Max(Prefetch.Default.SelectedWeighting, 1),
Math.Max(Prefetch.Default.UnselectedWeighting, 0),
Prefetch.Default.ImageWindow);
_retrieveThreadPool = new BlockingThreadPool<Frame>(_imageBoxEnumerator, RetrieveFrame);
_retrieveThreadPool.ThreadPoolName = "Retrieve";
_retrieveThreadPool.Concurrency = retrieveConcurrency;
_retrieveThreadPool.ThreadPriority = ThreadPriority.BelowNormal;
_retrieveThreadPool.Start();
}
protected override void Stop()
{
if (_retrieveThreadPool != null)
{
_retrieveThreadPool.Stop(false);
_retrieveThreadPool = null;
}
if (_decompressThreadPool != null)
{
_decompressThreadPool.Stop(false);
_decompressThreadPool = null;
}
if (_imageBoxEnumerator != null)
{
_imageBoxEnumerator.Dispose();
_imageBoxEnumerator = null;
}
_isStarted = false;
}
protected override void Start()
{
if (!_enabled)
return;
_isStarted = true;
_imageBoxEnumerator = new ViewerFrameEnumerator(ImageViewer, SelectedImageBoxWeight, UnselectedImageBoxWeight, FrameLookAheadCount.GetValueOrDefault(-1), CanRetrieveFrame);
_retrieveThreadPool = new FrameBlockingThreadPool(_imageBoxEnumerator, DoRetrieveFrame)
{
ThreadPoolName = GetThreadPoolName("Retrieve"),
Concurrency = RetrievalThreadConcurrency,
ThreadPriority = _retrievalThreadPriority
};
_retrieveThreadPool.Start();
if (DecompressionThreadConcurrency <= 0)
return;
_decompressThreadPool = new SimpleBlockingThreadPool(DecompressionThreadConcurrency)
{
ThreadPoolName = GetThreadPoolName("Decompress"),
ThreadPriority = _decompressionThreadPriority
};
_decompressThreadPool.Start();
}
