public void Apply(RippleEffect effect, DrawingLayer sourceLayer, DrawingLayer targetLayer)
{
effect.Center = Center;
effect.Amplitude = Amplitude;
effect.Frequency = Frequency;
effect.LightIntensity = LightIntensity;
effect.Phase = Phase;
sourceLayer.ApplyEffect(effect, targetLayer);
}
public DrawingLayer CalculateHistogram(DrawingLayer originalLayer)
{
DrawingLayer ping = originalLayer.Factory.CreateDrawingLayer(originalLayer.Width, originalLayer.Height);
DrawingLayer pong = originalLayer.Factory.CreateDrawingLayer(originalLayer.Width, originalLayer.Height);
float kernelHeight = 2;
Rectangle rect = new Rectangle(0, 0, originalLayer.Width, (int)Math.Ceiling(originalLayer.Height / kernelHeight));
DrawingLayer source = ping;
DrawingLayer target = pong;
SourceHeight = rect.Height;
originalLayer.ApplyEffect(this, source, rect, false);
rect.Height = (int)Math.Ceiling(rect.Height / kernelHeight);
while (rect.Height > 1)
{
SourceHeight = rect.Height;
source.ApplyEffect(this, target, rect, false);
//Swap layers for next round
DrawingLayer temp = source;
source = target;
target = temp;
rect.Height = (int)Math.Ceiling(rect.Height / kernelHeight);
}
//Target was switched with source, so source points to last result
return source;
}