/// <summary>
/// Initializes a new instance of the <see cref="BokehBlurProcessor{TPixel}"/> class.
/// </summary>
/// <param name="definition">The <see cref="BoxBlurProcessor"/> defining the processor parameters.</param>
/// <param name="source">The source <see cref="Image{TPixel}"/> for the current processor instance.</param>
/// <param name="sourceRectangle">The source area to process for the current processor instance.</param>
public BokehBlurProcessor(BokehBlurProcessor definition, Image <TPixel> source, Rectangle sourceRectangle)
: base(source, sourceRectangle)
{
this.radius = definition.Radius;
this.kernelSize = (this.radius * 2) + 1;
this.componentsCount = definition.Components;
this.gamma = definition.Gamma;
this.executionMode = definition.ExecutionMode;
// Reuse the initialized values from the cache, if possible
var parameters = new BokehBlurParameters(this.radius, this.componentsCount);
if (Cache.TryGetValue(parameters, out BokehBlurKernelData info))
{
this.kernelParameters = info.Parameters;
this.kernelsScale = info.Scale;
this.kernels = info.Kernels;
}
else
{
// Initialize the complex kernels and parameters with the current arguments
(this.kernelParameters, this.kernelsScale) = this.GetParameters();
this.kernels = this.CreateComplexKernels();
this.NormalizeKernels();
// Store them in the cache for future use
Cache.TryAdd(parameters, new BokehBlurKernelData(this.kernelParameters, this.kernelsScale, this.kernels));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="BokehBlurProcessor{TPixel}"/> class.
/// </summary>
/// <param name="configuration">The configuration which allows altering default behaviour or extending the library.</param>
/// <param name="definition">The <see cref="BoxBlurProcessor"/> defining the processor parameters.</param>
/// <param name="source">The source <see cref="Image{TPixel}"/> for the current processor instance.</param>
/// <param name="sourceRectangle">The source area to process for the current processor instance.</param>
public BokehBlurProcessor(Configuration configuration, BokehBlurProcessor definition, Image <TPixel> source, Rectangle sourceRectangle)
: base(configuration, source, sourceRectangle)
{
this.gamma = definition.Gamma;
// Get the bokeh blur data
BokehBlurKernelData data = BokehBlurKernelDataProvider.GetBokehBlurKernelData(
definition.Radius,
(definition.Radius * 2) + 1,
definition.Components);
this.kernelParameters = data.Parameters;
this.kernels = data.Kernels;
}