/// <summary>
/// Returns a copy of the image frame in the given pixel format.
/// </summary>
/// <typeparam name="TPixel2">The pixel format.</typeparam>
/// <returns>The <see cref="ImageFrame{TPixel2}"/></returns>
internal ImageFrame <TPixel2> CloneAs <TPixel2>()
where TPixel2 : struct, IPixel <TPixel2>
{
if (typeof(TPixel2) == typeof(TPixel))
{
return(this.Clone() as ImageFrame <TPixel2>);
}
var target = new ImageFrame <TPixel2>(this.configuration, this.Width, this.Height, this.MetaData.Clone());
ParallelFor.WithTemporaryBuffer(
0,
this.Height,
this.configuration,
this.Width,
(int y, IBuffer <Vector4> tempRowBuffer) =>
{
Span <TPixel> sourceRow = this.GetPixelRowSpan(y);
Span <TPixel2> targetRow = target.GetPixelRowSpan(y);
Span <Vector4> tempRowSpan = tempRowBuffer.GetSpan();
PixelOperations <TPixel> .Instance.ToScaledVector4(sourceRow, tempRowSpan, sourceRow.Length);
PixelOperations <TPixel2> .Instance.PackFromScaledVector4(tempRowSpan, targetRow, targetRow.Length);
});
return(target);
}
/// <summary>
/// Returns a copy of the image frame in the given pixel format.
/// </summary>
/// <typeparam name="TPixel2">The pixel format.</typeparam>
/// <returns>The <see cref="ImageFrame{TPixel2}"/></returns>
internal ImageFrame <TPixel2> CloneAs <TPixel2>()
where TPixel2 : struct, IPixel <TPixel2>
{
if (typeof(TPixel2) == typeof(TPixel))
{
return(this.Clone() as ImageFrame <TPixel2>);
}
var target = new ImageFrame <TPixel2>(this.MemoryManager, this.Width, this.Height, this.MetaData.Clone());
// TODO: ImageFrame has no visibility of the current configuration. It should have.
ParallelFor.WithTemporaryBuffer(
0,
this.Height,
Configuration.Default,
this.Width,
(int y, IBuffer <Vector4> tempRowBuffer) =>
{
Span <TPixel> sourceRow = this.GetPixelRowSpan(y);
Span <TPixel2> targetRow = target.GetPixelRowSpan(y);
Span <Vector4> tempRowSpan = tempRowBuffer.Span;
PixelOperations <TPixel> .Instance.ToScaledVector4(sourceRow, tempRowSpan, sourceRow.Length);
PixelOperations <TPixel2> .Instance.PackFromScaledVector4(tempRowSpan, targetRow, targetRow.Length);
});
return(target);
}
