public generateWangTilesThreadParams_t(WangTileSet wangTileSet, int numColors, int samplesPerTile, int numThreads)
{
this.wangTileSet = wangTileSet;
this.numColors = numColors;
this.samplesPerTile = samplesPerTile;
this.numThreads = numThreads;
}
public WTStipple(Image source, WangTileSet tileSet, int tonalRange, Bitmap dest)
{
// Convert source image to grayscale
Bitmap bmp = new Bitmap(source.Width, source.Height);
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(source, new Rectangle(0, 0, source.Width, source.Height));
float[,] grayscale = ToDensity(bmp);
this.tileSet = tileSet;
// Subdivide image recusively as long as we need more density on each leave's tile
// to account for the underlying sampled region on the image
ImageTreeNode root = new ImageTreeNode();
Random r = new Random(tileSet.tiles.Count);
root.tile = r.Next(tileSet.tiles.Count);
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
int minSize = 8;
Graphics g2 = Graphics.FromImage(dest);
g2.Clear(Color.White);
Refine_r(root, rect, grayscale, minSize, 0, 5, tonalRange, dest);
}
public static WangTileSet FromFile(string sourceFile)
{
WangTileSet wts = new WangTileSet();
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(wts.GetType());
System.IO.StreamReader file = new System.IO.StreamReader(sourceFile);
wts = (WangTileSet)serializer.Deserialize(file);
wts.SortTiles();
wts.MakeRecursive();
file.Close();
return(wts);
}
public WTStipple(Image source, WangTileSet tileSet, int tonalRange, Bitmap dest )
{
// Convert source image to grayscale
Bitmap bmp = new Bitmap(source.Width, source.Height);
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(source, new Rectangle(0, 0, source.Width, source.Height));
float[,] grayscale = ToDensity(bmp);
this.tileSet = tileSet;
// Subdivide image recusively as long as we need more density on each leave's tile
// to account for the underlying sampled region on the image
ImageTreeNode root = new ImageTreeNode();
Random r = new Random(tileSet.tiles.Count);
root.tile = r.Next(tileSet.tiles.Count);
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
int minSize = 8;
Graphics g2 = Graphics.FromImage(dest);
g2.Clear(Color.White);
Refine_r(root, rect, grayscale, minSize, 0, 5, tonalRange, dest );
}
private void GenerateStippling(object obj)
{
generateStipplingParams_t param = (generateStipplingParams_t)obj;
if (param.wangTilesPath.Length > 0)
{
// Stipple using Wang Tiles
WangTileSet wts = WangTileSet.FromFile(param.wangTilesPath);
int tonalRange = (int)Math.Pow(10, (int)(param.toneScaleBias * 6)) + 10000; // this is merely a heuristic trying to produce sensible values for the tonalRange variable from a [0,1] source range
WTStipple stipple = new WTStipple(param.source, wts, tonalRange, param.result);
}
else
{
// Stipple using Adaptive Incremental algorithm
if (AIS.OnAISDebugStep == null)
{
AIS.OnAISDebugStep += OnAISDebugStep;
}
int K = (int)((1.0f - param.toneScaleBias) * 2048 + 64); // this is merely a heuristic trying to produce sensible values for the K variable from a [0,1] source range
AIS.Stipple(param.source, K, param.result);
}
finishedStippling.Set();
}
public static WangTileSet FromFile(string sourceFile)
{
WangTileSet wts = new WangTileSet();
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(wts.GetType());
System.IO.StreamReader file = new System.IO.StreamReader(sourceFile);
wts = (WangTileSet)serializer.Deserialize(file);
wts.SortTiles();
wts.MakeRecursive();
file.Close();
return wts;
}
public generateWangTilesThreadParams_t(WangTileSet wangTileSet, int numColors, int samplesPerTile, int numThreads)
{
this.wangTileSet = wangTileSet;
this.numColors = numColors;
this.samplesPerTile = samplesPerTile;
this.numThreads = numThreads;
}
private void GenerateWangTiles()
{
if (generatingTiles)
{
requestedAbort = true;
return;
}
splitContainer2.Panel1.Enabled = false;
generatingTiles = true;
requestedAbort = false;
wtGenerate.Text = "Cancel";
if (wtDestFilePath.Text.Length == 0)
{
MessageBox.Show("Please select a valid destination file", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
wtProgress.Value = 0;
wtConsole.Items.Clear();
debugSteps = new Queue<Image>();
int samplesPerTile = Int32.Parse(wtSamplesPerTile.Text);
int numColors = (int)wtEdgeColors.Value;
if (WangTileSet.OnProgressReport == null) WangTileSet.OnProgressReport += new BlueNoise.WangTileSet.ProgressReportDelegate(OnWTProgress);
if (WangTileSet.OnConsoleMessage == null) WangTileSet.OnConsoleMessage += new BlueNoise.WangTileSet.ConsoleDelegate(OnWTConsoleMessage);
int numThreads = 8; // TODO: proper task-based system instead of limiting the worker thread count
if (wtDebugSteps.Checked)
{
// restrict to single-threaded
numThreads = 1;
wtDebugPlayStop.Enabled = true;
// Setup debug callbacks
if (WangTile.OnDebugStep == null) WangTile.OnDebugStep += new BlueNoise.WangTile.WangTileDebugStepDelegate(OnWangTileDebugStep);
if (WangTileSet.OnDebugStep == null) WangTileSet.OnDebugStep += new WangTileSet.WangTileDebugStepDelegate(OnWangTileDebugStep);
}
else
{
WangTile.OnDebugStep -= OnWangTileDebugStep;
WangTileSet.OnDebugStep -= OnWangTileDebugStep;
}
WangTileSet wangTileSet = new WangTileSet();
Thread t = new Thread(GenerateWangTilesThreadStart);
progress = new AutoResetEvent(false);
WaitHandle[] waitHandles = { progress };
generateWangTilesThreadParams_t threadParams = new generateWangTilesThreadParams_t(wangTileSet, numColors, samplesPerTile, numThreads);
t.Start(threadParams);
bool aborted = false;
do
{
aborted = this.Visible == false || requestedAbort;
if (aborted)
{
t.Abort();
break;
}
bool receivedProgress = WaitHandle.WaitAll(waitHandles, 100);
if (receivedProgress)
{
// progress report
ProcessConsoleMessages();
Image img = GetDebugImage();
if (img != null) wtDebugImg.Image = img;
wtProgress.Value = wtProgress.Minimum + (int)((wtProgress.Maximum - wtProgress.Minimum) * lastProgressReport);
if (stopDebug) Monitor.Enter(debugStepLocker);
}
Application.DoEvents(); // prevent the process from becoming unresponsive for too long and freeze
} while (t.ThreadState != System.Threading.ThreadState.Stopped);
if (aborted)
{
wtProgress.Value = 0;
wtConsole.Items.Clear();
debugSteps = new Queue<Image>();
if (stopDebug) Monitor.Exit(debugStepLocker);
}
else
{
// flush pending console messages and debug images
ProcessConsoleMessages();
Image img;
do
{
img = GetDebugImage();
if (img != null) wtDebugImg.Image = img;
} while (img != null);
// Save results
OnWTConsoleMessage("Saving results to " + wtDestFilePath.Text); ProcessConsoleMessages();
wangTileSet.Serialize(wtDestFilePath.Text);
OnWTConsoleMessage("Finished!"); ProcessConsoleMessages();
}
// restore UI status
wtGenerate.Text = "Generate Tiles";
generatingTiles = false;
requestedAbort = false;
splitContainer2.Panel1.Enabled = true;
wtDebugPlayStop.Enabled = false;
wtDebugStepOnce.Enabled = false;
if (stopDebug)
{
stopDebug = false;
}
}
private void GenerateWangTiles()
{
if (generatingTiles)
{
requestedAbort = true;
return;
}
splitContainer2.Panel1.Enabled = false;
generatingTiles = true;
requestedAbort = false;
wtGenerate.Text = "Cancel";
if (wtDestFilePath.Text.Length == 0)
{
MessageBox.Show("Please select a valid destination file", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
wtProgress.Value = 0;
wtConsole.Items.Clear();
debugSteps = new Queue <Image>();
int samplesPerTile = Int32.Parse(wtSamplesPerTile.Text);
int numColors = (int)wtEdgeColors.Value;
if (WangTileSet.OnProgressReport == null)
{
WangTileSet.OnProgressReport += new BlueNoise.WangTileSet.ProgressReportDelegate(OnWTProgress);
}
if (WangTileSet.OnConsoleMessage == null)
{
WangTileSet.OnConsoleMessage += new BlueNoise.WangTileSet.ConsoleDelegate(OnWTConsoleMessage);
}
int numThreads = 8; // TODO: proper task-based system instead of limiting the worker thread count
if (wtDebugSteps.Checked)
{
// restrict to single-threaded
numThreads = 1;
wtDebugPlayStop.Enabled = true;
// Setup debug callbacks
if (WangTile.OnDebugStep == null)
{
WangTile.OnDebugStep += new BlueNoise.WangTile.WangTileDebugStepDelegate(OnWangTileDebugStep);
}
if (WangTileSet.OnDebugStep == null)
{
WangTileSet.OnDebugStep += new WangTileSet.WangTileDebugStepDelegate(OnWangTileDebugStep);
}
}
else
{
WangTile.OnDebugStep -= OnWangTileDebugStep;
WangTileSet.OnDebugStep -= OnWangTileDebugStep;
}
WangTileSet wangTileSet = new WangTileSet();
Thread t = new Thread(GenerateWangTilesThreadStart);
progress = new AutoResetEvent(false);
WaitHandle[] waitHandles = { progress };
generateWangTilesThreadParams_t threadParams = new generateWangTilesThreadParams_t(wangTileSet, numColors, samplesPerTile, numThreads);
t.Start(threadParams);
bool aborted = false;
do
{
aborted = this.Visible == false || requestedAbort;
if (aborted)
{
t.Abort();
break;
}
bool receivedProgress = WaitHandle.WaitAll(waitHandles, 100);
if (receivedProgress)
{
// progress report
ProcessConsoleMessages();
Image img = GetDebugImage();
if (img != null)
{
wtDebugImg.Image = img;
}
wtProgress.Value = wtProgress.Minimum + (int)((wtProgress.Maximum - wtProgress.Minimum) * lastProgressReport);
if (stopDebug)
{
Monitor.Enter(debugStepLocker);
}
}
Application.DoEvents(); // prevent the process from becoming unresponsive for too long and freeze
} while (t.ThreadState != System.Threading.ThreadState.Stopped);
if (aborted)
{
wtProgress.Value = 0;
wtConsole.Items.Clear();
debugSteps = new Queue <Image>();
if (stopDebug)
{
Monitor.Exit(debugStepLocker);
}
}
else
{
// flush pending console messages and debug images
ProcessConsoleMessages();
Image img;
do
{
img = GetDebugImage();
if (img != null)
{
wtDebugImg.Image = img;
}
} while (img != null);
// Save results
OnWTConsoleMessage("Saving results to " + wtDestFilePath.Text); ProcessConsoleMessages();
wangTileSet.Serialize(wtDestFilePath.Text);
OnWTConsoleMessage("Finished!"); ProcessConsoleMessages();
}
// restore UI status
wtGenerate.Text = "Generate Tiles";
generatingTiles = false;
requestedAbort = false;
splitContainer2.Panel1.Enabled = true;
wtDebugPlayStop.Enabled = false;
wtDebugStepOnce.Enabled = false;
if (stopDebug)
{
stopDebug = false;
}
}
