[]&nbsp;dp)</PRE>
<DL>
<DD>Convert the general gpos 'dp' adjustments to the older 'dx' adjustments.
 This utility method is used to provide backward compatibility in implementations
 of IFPainter that have not yet been upgraded to the general position adjustments format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dp</CODE> - an array of 4-tuples, expressing [X,Y] placment
 adjustments and [X,Y] advancement adjustments, in that order (may be null)
<DT><B>Returns:</B><DD>if <code>dp</code> is not null, then