public static IImage ImageFromBytes(byte[] bytes)
{
var parser = new BinaryParser(bytes);
if (parser.Int16BE() != 474)
{
throw new InvalidDataException("invalid header");
}
var storage = parser.Byte();
IImage image = ImageFromBytesPerPixel(parser.Byte());
if (image == null)
{
throw new InvalidDataException("invalid bpc");
}
var dimension = parser.UInt16BE();
image.Width = parser.UInt16BE();
image.Height = parser.UInt16BE();
image.Channels = parser.UInt16BE();
if (dimension != 3)
{
image.Channels = 1;
}
parser.Position += 92;
var colormap = parser.Int32BE();
if (colormap != 0)
{
throw new NotSupportedException("unsupported colormap");
}
parser.Position += 404;
switch (storage)
{
case 0: ParseVerbatim(image, parser); break;
case 1: ParseRLE(image, parser); break;
default:
throw new InvalidDataException("invalid storage value");
}
return(image);
}
internal override ushort UInt16(BinaryParser bp) => bp.UInt16BE();
