/// <summary>
/// Creates color map based on chanes made
/// </summary>
/// <param name="tasks">Task list</param>
/// <returns>Tuple of LUT size and color map</returns>
public static Tuple <int, Tuple <byte, byte, byte> [, , ]> Export(Stack <ImageTask> tasks)
{
ColorMixerPipeline pipeline = new ColorMixerPipeline();
Stack <ImageTask> changes = new Stack <ImageTask>(tasks);
while (changes.Count > 0)
{
ImageTask imgTask = changes.Pop();
if ((imgTask.taskType != ImageModification.FlipHorizontally) && (imgTask.taskType != ImageModification.FlipVertically))
{
ColorMixer colorMixer = ((ColorTask)imgTask).ColorMixer;
pipeline.Add(colorMixer);
}
}
Tuple <byte, byte, byte>[,,] colors = new Tuple <byte, byte, byte> [32, 32, 32];
for (int i = 0; i < 32; ++i)
{
double b = i / 31.0;
for (int j = 0; j < 32; ++j)
{
double g = j / 31.0;
for (int k = 0; k < 32; ++k)
{
double r = k / 31.0;
colors[i, j, k] = pipeline.Run((byte)(r * 255), (byte)(g * 255), (byte)(b * 255));
}
}
}
return(new Tuple <int, Tuple <byte, byte, byte> [, , ]>(32, colors));
}
/// <summary>
/// Processes all tasks in main (not waiting) linked list and
/// creates restore point to undo queue
/// Waits in the while loop while another task should be executed
/// or while loop is terminated by main form signal
/// </summary>
private void Process()
{
while (form.tasksRunning)
{
if (head != null)
{
head.ongoing = true;
RestorePoint old = new RestorePoint(
form.imageSet.imageMode,
head.taskType,
form.imageSet.image.Clone(form.imageSet.rectangle, form.imageSet.image.PixelFormat),
form.imageSet.thumb.Clone(form.imageSet.thumbRectangle, form.imageSet.thumb.PixelFormat),
form.imageSet.saturation,
form.imageSet.brightness,
form.imageSet.clarity
);
undoQueue.Add(old);
redoQueue.Flush();
head.Process();
head = head.next;
if (head != null)
{
head.previous = null;
}
form.RedrawImageSet();
}
else
{
Thread.Sleep(100);
}
}
}
/// <summary>
/// Initialize image task type, image color filter (as image view mode), image set and
/// other variables with defaults
/// </summary>
/// <param name="mod">One of provided image modifications</param>
/// <param name="imageSet">Pointer to image set from engine</param>
public ImageTask(ImageModification mod, ImageSet imageSet)
{
taskType = mod;
ongoing = false;
previous = null;
next = null;
iSet = imageSet;
iMode = iSet.imageMode;
}
/// <summary>
/// Initialize task control variables to defaults and
/// starts parallel thread for image processing
/// </summary>
/// <param name="form">Pointer to main app form</param>
public TaskControl(MainForm form)
{
this.form = form;
head = null;
tail = null;
headWaiting = null;
tailWaiting = null;
undoQueue = new Queue();
redoQueue = new Queue();
tasks = new Stack <ImageTask>();
removed = new Stack <ImageTask>();
Thread t = new Thread(Process);
t.IsBackground = true;
t.Start();
}
/// <summary>
/// Puts every task from waiting linked list to main linked list
/// </summary>
public void CheckAndProcess()
{
if (head == null)
{
head = headWaiting;
tail = tailWaiting;
headWaiting = null;
tailWaiting = null;
}
else if (head.ongoing)
{
Thread.Sleep(100);
CheckAndProcess();
}
else
{
if (headWaiting != null)
{
tail.next = headWaiting;
headWaiting.previous = tail;
tail = tailWaiting;
}
}
}
/// <summary>
/// Adds image task to the tasks and linked list for image processing
/// </summary>
/// <param name="task">Task which should edit image set</param>
public void Add(ImageTask task)
{
tasks.Push(task);
if ((head == null) || (!head.ongoing))
{
if (head == null)
{
head = task;
tail = task;
}
else
{
if (tail.taskType == task.taskType)
{
if (tail.previous == null)
{
head = task;
tail = task;
}
else
{
tail.previous.next = task;
task.previous = tail.previous;
tail = task;
}
}
else
{
tail.next = task;
task.previous = tail;
tail = task;
}
}
}
else
{
if (headWaiting == null)
{
headWaiting = task;
tailWaiting = task;
}
else
{
if (tailWaiting.taskType == task.taskType)
{
if (tailWaiting.previous == null)
{
headWaiting = task;
tailWaiting = task;
}
else
{
tailWaiting.previous.next = task;
task.previous = tailWaiting.previous;
tailWaiting = task;
}
}
else
{
tailWaiting.next = task;
task.previous = tailWaiting;
tailWaiting = task;
}
}
}
}