public static SwfMatrix ReadMatrix(this ISwfStreamReader reader)
{
var matrix = SwfMatrix.Identity;
var hasScale = reader.ReadBit();
if (hasScale)
{
var bits = (byte)reader.ReadUnsignedBits(5);
matrix.ScaleX = reader.ReadFixedPoint16(bits);
matrix.ScaleY = reader.ReadFixedPoint16(bits);
}
var hasRotate = reader.ReadBit();
if (hasRotate)
{
var bits = (byte)reader.ReadUnsignedBits(5);
matrix.RotateSkew0 = reader.ReadFixedPoint16(bits);
matrix.RotateSkew1 = reader.ReadFixedPoint16(bits);
}
var translateBits = (byte)reader.ReadUnsignedBits(5);
matrix.TranslateX = reader.ReadSignedBits(translateBits);
matrix.TranslateY = reader.ReadSignedBits(translateBits);
reader.AlignToByte();
return(matrix);
}
