private Image CreateRenderThreads(Size size,Area area)
{
Bitmap image = new Bitmap(size.Width,size.Height);
BitmapEditor editor = new BitmapEditor(image);
int[] ranges = GetRangesPixelsArray(size.Width,RenderSettings.NumberOfThreads);
Thread[] threads = new Thread[RenderSettings.NumberOfThreads];
editor.LockBits();
for (int i = 0; i < RenderSettings.NumberOfThreads; i++)
{
threads[i] = new Thread(new ParameterizedThreadStart(ProcessBitmapPart));
threads[i].IsBackground = true;
threads[i].Priority = RenderSettings.ThreadsPriority;
threads[i].Start(new ThreadData()
{
areaPlain = area,
imageSize = size,
widthStart = ranges[i],
widthEnd = ranges[i+1],
editorReference = editor
});
}
foreach (var t in threads)
{
t.Join();
}
editor.UnlockBits();
return image;
}
protected Image RenderImage(Size size,Area area)
{
Image fractalImage;
_widthRatio = (area.End.X - area.Start.X)/size.Width;
_heightRatio = (area.End.Y - area.Start.Y)/size.Height;
_renderAsyncIterations = 0;
var startClock = DateTime.Now;
if(_singleIterationMode)
{
fractalImage = SingleIterationRender(size,area);
}
else
{
fractalImage = CreateRenderThreads(size,area);
}
var renderTime = DateTime.Now - startClock;
if(RenderCompleteCall != null)
RenderCompleteCall(renderTime);
return fractalImage;
}
private Image SingleIterationRender(Size size,Area area)
{
Bitmap image = new Bitmap(size.Width,size.Height);
Graphics.FromImage(image).FillRectangle(new SolidBrush(_backgroundColor),0,0,size.Width,size.Height);
BitmapEditor editor = new BitmapEditor(image);
double realPart,imaginaryPart;
editor.LockBits();
for (int i = 0; i < size.Height; i++)
{
for (int r = 0; r < size.Width; r++)
{
realPart = (r*_widthRatio) + area.Start.X;
imaginaryPart = (i* _heightRatio) + area.Start.Y;
if(Contains(realPart,imaginaryPart,_accuracy))
{
editor.SetPixel(r,i,_fractalColor);
}
}
if(RenderProgressCall != null)
{
RenderProgressCall(i,size.Height);
}
}
editor.UnlockBits();
return image;
}
private Area GetNewArea(Point p1,Point p2)
{
Point[] points = CreateAreaPoints(p1, p2);
double xRatio = (_renderProperties.Area.End.X -
_renderProperties.Area.Start.X) / _renderProperties.Width;
double yRatio = (_renderProperties.Area.End.Y -
_renderProperties.Area.Start.Y) / _renderProperties.Height;
Area newArea = new Area
(
new Area.Point(xRatio * points[0].X + _renderProperties.StartX,
yRatio * points[0].Y + _renderProperties.StartY),
new Area.Point(xRatio * points[1].X + _renderProperties.StartX,
yRatio * points[1].Y + _renderProperties.StartY)
);
return newArea;
}
