public override void RenderToBuffer(MandelbrotSet set, PixelBuffer buffer)
{
var renderer = new ContourRenderer(this.tracer);
Palette palette = new DefaultPalette();
int maxCount = set.EstimateMaxCount();
var bandMap = new LogarithmicBandMap(maxCount, 30.0);
renderer.Render(buffer, set, bandMap, maxCount);
buffer.ApplyPalette(palette);
}
public override void Render(PixelBuffer buffer, MandelbrotSet set, BandMap bandMap, int maxCount)
{
this.sizex = buffer.SizeX;
this.sizey = buffer.SizeY;
this.maxCount = maxCount;
this.bandMap = bandMap;
this.buffer = buffer;
this.InitializeCoordinateMap(sizex, sizey, set);
this.NumberOfContours = 0;
for (int i = 0; i < sizex; i++)
{
// Keep track of the last band and how many pixels into that band we are
// Start crawling after we see a few pixels of the same band
int lastBand = 0;
int numberOfPointsFoundInBand = 0;
int startOfBand = 0;
bool calculated = false;
for (int j = 0; j < sizey; j++)
{
int band = GetOrCalculateBand(i, j, out calculated);
System.Diagnostics.Debug.Assert(band != 0); // This should only be returned for points out of range, which should be none
if (calculated && (band == lastBand))
{
numberOfPointsFoundInBand++;
}
else
{
if (band != lastBand)
{
startOfBand = j;
lastBand = band;
}
numberOfPointsFoundInBand = 1;
}
// If we are 8 or more pixels into the band, start crawling
if (numberOfPointsFoundInBand > 8)
{
if (this.Crawl(i, startOfBand, band))
{
this.NumberOfContours = this.NumberOfContours + 1;
this.FillCrawl(i, startOfBand, band);
this.DumpBits();
}
this.ClearSavedBits();
numberOfPointsFoundInBand = 0;
}
}
}
}
public void Evaluate(PixelBuffer buffer)
{
for (int i = 0; i < buffer.SizeX; i++)
{
for (int j = 0; j < buffer.SizeY; j++)
{
int val = buffer.GetValue(i, j);
int count = 0;
this.values.TryGetValue(val, out count);
count++;
this.values[val] = count;
}
}
}
public override void Render(PixelBuffer buffer, MandelbrotSet set, BandMap bandMap, int maxCount)
{
this.InitializeCoordinateMap(buffer.SizeX, buffer.SizeY, set);
DoubleComplexNumber temp = new DoubleComplexNumber(0.0, 0.0);
for (int i = 0; i < buffer.SizeX; i++)
{
temp.X = this.XCoordinates[i];
for (int j = 0; j < buffer.SizeY; j++)
{
temp.Y = this.YCoordinates[j];
int count = temp.CalculateCount(maxCount);
this.SetBand(buffer, bandMap, i, j, count);
}
}
}
public abstract void RenderToBuffer(MandelbrotSet set, PixelBuffer buffer);
public void SaveBits(string message, PixelBuffer buffer)
{
if (this.tracer != null)
{
this.tracer.AddBits(message, buffer);
}
}
public abstract void Render(PixelBuffer buffer, MandelbrotSet set, BandMap bandMap, int maxCount);
protected virtual void SetBand(PixelBuffer buffer, BandMap bandMap, int x, int y, int count)
{
int band = bandMap.Map(count);
buffer.SetValue(x, y, band);
}
public PixelBuffer Clone()
{
var newBuffer = new PixelBuffer(this.SizeX, this.SizeY);
for (int i = 0; i < pixels.Length; i++)
newBuffer.pixels[i] = this.pixels[i];
return newBuffer;
}
public PixelBuffer(PixelBuffer backing, int offsetX, int offsetY, int sizeX, int sizeY, int stride)
: this(backing.pixels, offsetX, offsetY, sizeX, sizeY, stride)
{
}