public ComputeEngine(FractalSettings settings)
{
int height = settings.Height; // note that we need to use these locals to avoid creating tens of thousands of BigFloat objects in the loop
int width = settings.Width;
m_samples = new float[width, height];
for (int v = 0; v < height; ++v)
for (int h = 0; h < width; ++h)
m_samples[h, v] = float.NaN;
// Console.WriteLine("dx: {0:F}", settings.Extent.Width/width);
const int NumThreads = 4;
m_computers = new Computer[NumThreads];
int startRow = 0;
int numRows = height/NumThreads;
for (int i = 0; i < NumThreads; ++i)
{
if (i + 1 == NumThreads)
numRows = height - startRow;
m_computers[i] = new Computer(settings, startRow, numRows, m_samples);
startRow += numRows;
}
}
public Document(FractalSettings settings)
: base(NSObject.AllocAndInitInstance("Document"))
{
m_settings = settings;
AppDelegate app = NSApplication.sharedApplication().delegate_().To<AppDelegate>();
m_engine = new ComputeEngine(m_settings);
m_palette = app.DefaultPalette;
}
public Computer(FractalSettings settings, int startRow, int numRows, float[,] samples)
{
Contract.Requires(startRow >= 0, "startRow is negative");
Contract.Requires(numRows > 0, "numRows is not positive");
Contract.Requires(samples != null, "samples is null");
m_settings = settings;
m_startRow = startRow;
m_numRows = numRows;
m_samples = samples;
// TODO: may want to use threads so we can lower the priority of
// images in the background (of course mono doesn't support thread
// priorities...)
ThreadPool.QueueUserWorkItem(o => DoThread()); // the pool uses background threads so the app will exit even if this thread is still running
}
void init(String p_name, Algorithm p_algorithm, float p_scale, NoiseStyle p_style, float p_min, float p_max, Edge p_edge, float p_edge_threshold)
{
fractalEnabled = false;
fractalsettings = new FractalSettings();
fractalsettings.layers = 1;
fractalsettings.lacunarity = 1.0f;
fractalsettings.gain = 1.0f;
name = p_name;
algorithm = p_algorithm;
scale = p_scale;
min = p_min;
max = p_max;
style = p_style;
edge = p_edge;
edge_threshold = p_edge_threshold;
}
private void DoParseXml(XmlDocument doc)
{
foreach (XmlNode child in doc.ChildNodes)
{
if (child.Name == "fractal")
{
m_paletteExponent = float.Parse(child.Attributes["exponent"].Value);
string name = child.Attributes["name"].Value;
foreach (XmlNode gchild in child.ChildNodes)
{
if (gchild.Name == "settings")
{
m_settings = new FractalSettings(gchild);
}
else if (gchild.Name == "palette")
{
m_palette = new Palette(name, gchild);
}
}
}
}
}
// document().undoManager().setActionName should be called after this is called.
public void updateSettings(Wrapper wrapper)
{
FractalSettings newSettings = (FractalSettings) wrapper.Value;
if (newSettings != m_settings)
{
Wrapper oldSettings = Wrapper.Create(m_settings);
undoManager().registerUndoWithTarget_selector_object(this, "updateSettings:", oldSettings);
m_engine.Abort();
m_settings = newSettings;
m_engine = new ComputeEngine(m_settings);
NSNotificationCenter.defaultCenter().postNotificationName_object(
StateChanged, DocChange.Create(this, ChangeType.Settings));
}
}
void init(String p_name,Algorithm p_algorithm,float p_scale,NoiseStyle p_style,float p_min,float p_max,Edge p_edge,float p_edge_threshold)
{
fractalEnabled = false;
fractalsettings = new FractalSettings();
fractalsettings.layers = 1;
fractalsettings.lacunarity = 1.0f;
fractalsettings.gain = 1.0f;
name = p_name;
algorithm = p_algorithm;
scale = p_scale;
min = p_min;
max = p_max;
style = p_style;
edge = p_edge;
edge_threshold = p_edge_threshold;
}
private void button1_Click_1(object sender, RoutedEventArgs e)
{
// save fractal
string store = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\WooFractal\\Scripts";
if (!System.IO.Directory.Exists(store))
{
System.IO.Directory.CreateDirectory(store);
}
store = store + "\\" + "fractal";
if (!System.IO.Directory.Exists(store))
{
System.IO.Directory.CreateDirectory(store);
}
SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.InitialDirectory = store;
saveFileDialog1.Filter = "Fractal Descriptor (*.wfd)|*.wfd";
saveFileDialog1.FilterIndex = 1;
if (saveFileDialog1.ShowDialog() == true)
{
// Save document
string filename = saveFileDialog1.FileName;
using (StreamWriter sw = new StreamWriter(filename))
{
try
{
FractalSettings fractalSettings = new FractalSettings();
fractalSettings.Set(_RenderOptions, _FractalColours, _FractalIterations);
sw.Write(fractalSettings.BuildXML());
sw.Close();
}
catch (Exception /*e*/)
{
// lets not get overexcited...
}
}
}
}
private void button2_Click_1(object sender, RoutedEventArgs e)
{
FractalSettings fractalSettings = new FractalSettings();
// load fractal
string store = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\WooScripter\\Scripts\\fractal";
// Configure open file dialog box
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.FileName = "fractal"; // Default file name
dlg.DefaultExt = ".wfd"; // Default file extension
dlg.Filter = "Fractal Descriptor|*.wfd"; // Filter files by extension
dlg.InitialDirectory = store;
// Show open file dialog box
Nullable<bool> result = dlg.ShowDialog();
// get name of file
if (result == true)
{
string filename = dlg.FileName;
StreamReader sr = new StreamReader(filename);
string fractal = sr.ReadToEnd();
fractalSettings.Load(fractal);
sr.Close();
_RenderOptions = fractalSettings._RenderOptions;
_FractalColours = fractalSettings._FractalColours;
_FractalIterations = fractalSettings._FractalIterations;
}
}
private void SaveFractal(string name)
{
string store = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\WooFractal\\Scripts";
if (!System.IO.Directory.Exists(store))
{
System.IO.Directory.CreateDirectory(store);
}
store = store + "\\" + "fractal";
if (!System.IO.Directory.Exists(store))
{
System.IO.Directory.CreateDirectory(store);
}
string filename = store + "\\" + name + ".wfd";
using (StreamWriter sw = new StreamWriter(filename))
{
try
{
FractalSettings fractalSettings = new FractalSettings();
fractalSettings.Set(_RenderOptions, _FractalColours, _FractalIterations);
sw.Write(fractalSettings.BuildXML());
sw.Close();
}
catch (Exception /*e*/)
{
// lets not get overexcited...
}
}
}
private FractalSettings LoadFractal(string name)
{
FractalSettings fractalSettings = new FractalSettings();
string filename = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\WooFractal\\Scripts\\fractal\\" + name + ".wfd";
if (System.IO.File.Exists(filename))
{
StreamReader sr = new StreamReader(filename);
string fractal = sr.ReadToEnd();
fractalSettings.Load(fractal);
sr.Close();
_RenderOptions = fractalSettings._RenderOptions;
_FractalColours = fractalSettings._FractalColours;
_FractalIterations = fractalSettings._FractalIterations;
}
return fractalSettings;
}
