/// <summary>
/// Creates a resized version of the source image using the default resampler.
/// </summary>
public static Image <TPixel> Resize <TPixel, TState>(
this ReadOnlyPixelRowsContext <TPixel> context,
Size size,
TState state = default,
ProcessingProgressCallback <TState>?onProgress = null)
where TPixel : unmanaged, IPixel <TPixel>
{
//var inputImg = context.Image;
//var outputImg = new Image<TPixel>(width, height);
//
//StbImageResize.stbir_resize(
// inputImg, inputImg.Width, inputImg.Height, inputImg.Stride, outputImg,
// outputImg.Width, outputImg.Height, outputImg.Stride, )
var source = context.ToImage <Color>();
var output = Image <Color> .CreateUninitialized(size);
var progressCallback = onProgress == null ? (ResizeProgressCallback?)null :
(p, r) => onProgress !.Invoke(state, p, r.ToMGRect());
ImageResize.Resize(
MemoryMarshal.AsBytes(source.GetPixelSpan()), source.Width, source.Height, source.ByteStride,
MemoryMarshal.AsBytes(output.GetPixelSpan()), output.Width, output.Height, output.ByteStride,
numChannels: 4,
progressCallback);
return(Image.LoadPixels <TPixel>(output));
}
/// <summary>
/// Creates a resized version of the source image using the default resampler.
/// </summary>
public static Image <TPixel> Resize <TPixel>(
this ReadOnlyPixelRowsContext <TPixel> context,
Size size,
ProcessingProgressCallback <object?>?onProgress = null)
where TPixel : unmanaged, IPixel <TPixel>
{
return(Resize(context, size, null, onProgress));
}
/// <summary>
/// Creates a resized version of the source image using the default resampler.
/// </summary>
public static Image Resize <TState>(
this ReadOnlyPixelRowsContext context,
Size size,
VectorType?destinationType = null,
TState state = default,
ProcessingProgressCallback <TState>?onProgress = null)
{
throw new NotImplementedException();
}
/// <summary>
/// Creates a resized version of the source image using the default resampler.
/// </summary>
public static Image <TPixel> Resize <TPixel, TState>(
this ReadOnlyPixelRowsContext context,
Size size,
TState state = default,
ProcessingProgressCallback <TState>?onProgress = null)
where TPixel : unmanaged, IPixel <TPixel>
{
throw new NotImplementedException();
var outputImage = Image.Create(context.PixelType, size);
// TODO: FIXME:
//StbImageResize.stbir_resize(
// inputImg, context.Width, context.Height, context.Stride, outputImage,
// outputImage.Width, outputImage.Height, outputImage.ByteStride, StbImageResize.DataType)
//
// return outputImage;
}
