public static void ProcessPixels(ArgbColor[] pixelData, Size size, IPixelTransform pixelTransform, IErrorDiffusion dither)
{
ArgbColor current;
ArgbColor transformed;
int index;
for (int row = 0; row < size.Height; row++)
{
for (int col = 0; col < size.Width; col++)
{
index = row * size.Width + col;
current = pixelData[index];
// transform the pixel
if (pixelTransform != null)
{
transformed = pixelTransform.Transform(pixelData, current, col, row, size.Width, size.Height);
pixelData[index] = transformed;
}
else
{
transformed = current;
}
// apply a dither algorithm to this pixel
// assuming it wasn't done before
dither?.Diffuse(pixelData, current, transformed, col, row, size.Width, size.Height);
}
}
}
public static void ProcessPixels(Color[] pixelData, Size size, IPixelTransform pixelTransform, IErrorDiffusion dither, WorkerData bw = null)
{
Color current;
Color transformed;
int index = 0;
for (int row = 0; row < size.Height; row++)
{
for (int col = 0; col < size.Width; col++)
{
if (bw != null && bw.Worker.CancellationPending == true)
{
bw.Args.Cancel = true;
return;
}
current = pixelData[index];
if (pixelTransform != null)
{
transformed = pixelTransform.Transform(current);
pixelData[index] = transformed;
}
else
{
transformed = current;
}
index++;
// apply a dither algorithm to this pixel
// assuming it wasn't done before
dither?.Diffuse(pixelData, current, transformed, col, row, size.Width, size.Height);
}
}
}
public void AddTransform(IPixelTransform transform)
{
if (source.IsValueCreated)
{
throw new NotSupportedException("A Transform cannot be added once the Pipeline Source is materialized");
}
if (transform is IPixelTransformInternal tint)
{
tint.Init(Context);
return;
}
transform.Init(Context.Source.AsIPixelSource());
Context.Source = transform.AsPixelSource();
}
/// <summary>Adds a new transform filter to the pipeline. Because a filter may alter dimensions or pixel format of an image, filters may not be added once the <see cref="PixelSource" /> has been retrieved.</summary>
/// <param name="transform">The <see cref="IPixelTransform" /> that implements the filter.</param>
public ProcessingPipeline AddTransform(IPixelTransform transform)
{
if (source.IsValueCreated)
{
throw new NotSupportedException("A Transform cannot be added once the Pipeline Source is materialized");
}
if (transform is IPixelTransformInternal tint)
{
tint.Init(Context);
return(this);
}
MagicTransforms.AddExternalFormatConverter(Context);
transform.Init(Context.Source.AsIPixelSource());
Context.Source = transform.AsPixelSource();
return(this);
}
public static Bitmap RequestImageTransform(Bitmap image, IPixelTransform transform, IErrorDiffusion ditherer)
{
WorkerData workerData;
if (image.PixelFormat != System.Drawing.Imaging.PixelFormat.Format32bppArgb)
{
using (Bitmap tmp = image)
{
image = tmp.Copy();
}
}
workerData = new WorkerData
{
Image = image,
Transform = transform,
Dither = ditherer
};
return(backgroundWorker_RunWorkerCompleted(null, new RunWorkerCompletedEventArgs(GetTransformedImage(workerData), null, false)));
}
