public InputMeta(InputStream in) 
{
        this.in = in;
}

 public int getLength() 
{
        return length;
}

 public int readByte() throws IOException 
{
        ++length;
        return in.read() & 0xff;
}

 public Color readColor() throws IOException 
{
        int red = readByte();
        int green = readByte();
        int blue = readByte();
        readByte();
        return new Color(red, green, blue);
}

 public int readInt() throws IOException 
{
        length += 4;
        int k1 = in.read();
        if (k1 <  0)
            return 0;
        int k2 = in.read() < <  8;
        int k3 = in.read() < <  16;
        return k1 + k2 + k3 + (in.read() < <  24);
}

 public int readShort() throws IOException 
{
        int k = readWord();
        if (k  > 0x7fff)
            k -= 0x10000;
        return k;
}

 public int readWord() throws IOException 
{
        length += 2;
        int k1 = in.read();
        if (k1 <  0)
            return 0;
        return (k1 + (in.read() < <  8)) & 0xffff;
}

 public  void skip(int len) throws IOException 
{
        length += len;
        Utilities.skip(in, len);
}