@Override
        public String toString() {
            return "entry: " + red + "," + green + "," + blue + "," + alpha;
        }
<code>flipEndian</code> is used to flip the endian bit of the header
file.

@param signedShort
           the bit to flip.
@return the flipped bit.
jme3-core/src/plugins/java/com/jme3/texture/plugins/TGALoader.java