public static ImageFileFormat DetermineFileFormat(Stream stream)
{
if (Bmp.IsBmpStream(stream))
{
return(ImageFileFormat.Bmp);
}
if (Png.IsPngStream(stream))
{
return(ImageFileFormat.Png);
}
if (Jpg.IsJpgStream(stream))
{
return(ImageFileFormat.Jpg);
}
throw new InvalidOperationException("Unsupported image file format.");
}
public static Image Load(Stream stream, ImageFileFormat format)
{
switch (format)
{
case ImageFileFormat.Bmp:
return(Bmp.Load(stream));
case ImageFileFormat.Png:
return(Png.Load(stream));
case ImageFileFormat.Jpg:
return(Jpg.Load(stream));
default:
throw new InvalidOperationException("Unsupported image file format.");
}
}
public static void Save(Image image, Stream stream, ImageFileFormat format, bool saveAlpha)
{
switch (format)
{
case ImageFileFormat.Bmp:
Bmp.Save(image, stream, (!saveAlpha) ? Bmp.Format.RGB8 : Bmp.Format.RGBA8);
break;
case ImageFileFormat.Png:
Png.Save(image, stream, (!saveAlpha) ? Png.Format.RGB8 : Png.Format.RGBA8);
break;
case ImageFileFormat.Jpg:
Jpg.Save(image, stream, 95);
break;
default:
throw new InvalidOperationException("Unsupported image file format.");
}
}