/*
**  bmp2png --- conversion from (Windows or OS/2 style) BMP to PNG
**  png2bmp --- conversion from PNG to (Windows style) BMP
**
**  Copyright (C) 1999-2005 MIYASAKA Masaru <alkaid@coral.ocn.ne.jp>
**
**  Permission to use, copy, modify, and distribute this software and
**  its documentation for any purpose and without fee is hereby granted,
**  provided that the above copyright notice appear in all copies and
**  that both that copyright notice and this permission notice appear
**  in supporting documentation. This software is provided "as is"
**  without express or implied warranty.
**
**  NOTE: Comments are partly written in Japanese. Sorry.
*/