/// <inheritdoc />
protected override void OnFrameApply(ImageFrame <TPixel> source)
{
var interest = Rectangle.Intersect(source.Bounds(), this.SourceRectangle);
Configuration configuration = this.Configuration;
using IQuantizer <TPixel> frameQuantizer = this.quantizer.CreatePixelSpecificQuantizer <TPixel>(configuration);
using IndexedImageFrame <TPixel> quantized = frameQuantizer.BuildPaletteAndQuantizeFrame(source, interest);
ReadOnlySpan <TPixel> paletteSpan = quantized.Palette.Span;
int offsetY = interest.Top;
int offsetX = interest.Left;
Buffer2D <TPixel> sourceBuffer = source.PixelBuffer;
for (int y = interest.Y; y < interest.Height; y++)
{
Span <TPixel> row = sourceBuffer.DangerousGetRowSpan(y);
ReadOnlySpan <byte> quantizedRow = quantized.DangerousGetRowSpan(y - offsetY);
for (int x = interest.Left; x < interest.Right; x++)
{
row[x] = paletteSpan[quantizedRow[x - offsetX]];
}
}
}
public RowIntervalOperation(
Rectangle bounds,
ImageFrame <TPixel> source,
IndexedImageFrame <TPixel> quantized)
{
this.bounds = bounds;
this.source = source;
this.quantized = quantized;
}
/// <inheritdoc />
protected override void OnFrameApply(ImageFrame <TPixel> source)
{
var interest = Rectangle.Intersect(source.Bounds(), this.SourceRectangle);
Configuration configuration = this.Configuration;
using IQuantizer <TPixel> frameQuantizer = this.quantizer.CreatePixelSpecificQuantizer <TPixel>(configuration);
using IndexedImageFrame <TPixel> quantized = frameQuantizer.BuildPaletteAndQuantizeFrame(source, interest);
var operation = new RowIntervalOperation(this.SourceRectangle, source, quantized);
ParallelRowIterator.IterateRowIntervals(
configuration,
interest,
in operation);
}
