public static System.IO.Stream AsPngStream(this PImage image)
{
#if __IOS__ || __TVOS__
return(image.AsPNG()?.AsStream());
#elif __MACOS__
var imageRep = new NSBitmapImageRep(image.AsTiff());
return(imageRep.RepresentationUsingTypeProperties(NSBitmapImageFileType.Png)
.AsStream());
#endif
}
/// <inheritdoc />
public Task Save(CompressedBitmapFormat format, float quality, Stream target)
{
return(Task.Run(() =>
{
#if UIKIT
var data = format == CompressedBitmapFormat.Jpeg ? _inner.AsJPEG((float)quality) : _inner.AsPNG();
data.AsStream().CopyTo(target);
#else
var rect = CGRect.Empty;
var cgImage = _inner.AsCGImage(ref rect, null, null);
var imageRep = new NSBitmapImageRep(cgImage);
var props = format == CompressedBitmapFormat.Png ?
new NSDictionary() :
new NSDictionary(new NSNumber(quality), new NSString("NSImageCompressionFactor"));
var type = format == CompressedBitmapFormat.Png ? NSBitmapImageFileType.Png : NSBitmapImageFileType.Jpeg;
var outData = imageRep.RepresentationUsingTypeProperties(type, props);
outData.AsStream().CopyTo(target);
#endif
}));
}
