private void OnWorkerProgressChanged(object sender, ProgressChangedEventArgs args)
{
EMWorker worker = sender as EMWorker;
if (worker == null)
{
return;
}
lock (currentWorkersProgress)
{
currentWorkersProgress[currentWorkers.IndexOf(worker)] = args.ProgressPercentage;
int combinedProgress = 0;
combinedProgress = currentWorkersProgress.Sum() / currentWorkersProgress.Count;
if (currentProgress != combinedProgress)
{
currentProgress = combinedProgress;
if (this.ProgressChanged != null)
{
this.ProgressChanged(this, new ProgressChangedEventArgs(currentProgress, null));
}
}
}
}
private void OnWorkerProgressCompleted(object sender, RunWorkerCompletedEventArgs args)
{
EMWorker worker = sender as EMWorker;
if (worker == null)
{
return; // TODO: Handle Error
}
if (args.Error != null)
{
// TODO: Handle Error
throw new EMWorkNotCompletedException("An error occurred in an EM Worker", args.Error);
}
this.currentWorkersCompleted[currentWorkers.IndexOf(worker)] = true;
if (!this.currentWorkersCompleted.Contains(false))
{
this.Mixtures = new Dictionary <EMPatch, GaussianMixtureModel>();
foreach (EMWorker w in this.currentWorkers)
{
foreach (Tuple <EMPatch, GaussianMixtureModel> t in w.Mixtures)
{
this.Mixtures.Add(t.Item1, t.Item2);
}
}
this.workCompleted = true;
if (this.ProgressCompleted != null)
{
this.ProgressCompleted(this, new RunWorkerCompletedEventArgs(null, null, false));
}
}
}
public void Run()
{
// Create thread workers
currentWorkers = new List <EMWorker>();
currentWorkersCompleted = new List <bool>();
currentWorkersProgress = new List <int>();
currentProgress = 0;
for (int worker = 0; worker < ThreadCount; worker++)
{
EMWorker thread = new EMWorker();
thread.ProgressChanged += new ProgressChangedEventHandler(OnWorkerProgressChanged);
thread.RunWorkerCompleted += new RunWorkerCompletedEventHandler(OnWorkerProgressCompleted);
currentWorkers.Add(thread);
currentWorkersCompleted.Add(false);
currentWorkersProgress.Add(0);
}
// Create data objects for workers
List <List <EMPatch> > workerPatches = new List <List <EMPatch> >();
for (int t = 0; t < ThreadCount; t++)
{
workerPatches.Add(new List <EMPatch>());
}
// Patch size
int patchArrayWidth = (int)Math.Ceiling(Width / (double)Configuration.PatchSize);
int patchArrayHeight = (int)Math.Ceiling(Height / (double)Configuration.PatchSize);
int currentThreadIndex = 0;
for (int patchX = 0; patchX < patchArrayWidth; patchX++)
{
for (int patchY = 0; patchY < patchArrayHeight; patchY++)
{
// Calculate bounding box of the patch
int left = patchX * Configuration.PatchSize;
int top = patchY * Configuration.PatchSize;
int right = Math.Min(left + Configuration.PatchSize, Width);
int bottom = Math.Min(top + Configuration.PatchSize, Height);
// Create a new EMPatch
EMPatch patch = new EMPatch(patchX, patchY, left, right, top, bottom);
// Assign patch to a worker thread
workerPatches[currentThreadIndex].Add(patch);
currentThreadIndex = (currentThreadIndex + 1) % ThreadCount;
}
}
// Launch workers
for (int worker = 0; worker < currentWorkers.Count; worker++)
{
currentWorkers[worker].IntensityBuffer = IntensityBuffer;
currentWorkers[worker].Patches = workerPatches[worker];
currentWorkers[worker].Width = this.Width;
currentWorkers[worker].Height = this.Height;
currentWorkers[worker].Configuration = this.Configuration;
currentWorkers[worker].RunWorkerAsync();
}
}