public override void PostProcess(SKCanvas canvas, SKRect bounds, SKPaint paint)
{
if (_imageFilter != null)
{
paint.ImageFilter = SKImageFilter.CreateMerge(paint.ImageFilter, _imageFilter);
}
}
/// <summary>
/// Creates the image filter.
/// </summary>
/// <param name="drawingContext">The drawing context.</param>
/// <exception cref="System.NotImplementedException"></exception>
public override void CreateFilter(SkiaSharpDrawingContext drawingContext)
{
var imageFilters = new SKImageFilter[_filters.Length];
var i = 0;
foreach (var item in _filters)
{
item.CreateFilter(drawingContext);
if (item.SKImageFilter is null)
{
throw new System.Exception("Image filter is not valid");
}
imageFilters[i++] = item.SKImageFilter;
}
SKImageFilter = SKImageFilter.CreateMerge(imageFilters, _cropRect);
}
public void MergeFilterAcceptsSourceGraphicInputs()
{
var filter = SKImageFilter.CreateMerge(new SKImageFilter[] { null });
Assert.NotNull(filter);
}