/************************************************************************ * *  macros.h, part of tmn (TMN encoder) * *  Copyright (C) 1997  University of BC, Canada * *  Contacts:  *  Michael Gallant                   <mikeg@ee.ubc.ca> *  Guy Cote                          <guyc@ee.ubc.ca> *  Berna Erol                        <bernae@ee.ubc.ca> * *  UBC Image Processing Laboratory   http://www.ee.ubc.ca/image *  2356 Main Mall                    tel.: +1 604 822 4051 *  Vancouver BC Canada V6T1Z4        fax.: +1 604 822 5949 * *  Copyright (C) 1995, 1996  Telenor R&D, Norway *   *  Contacts:  *  Robert Danielsen                  <Robert.Danielsen@nta.no> * *  Telenor Research and Development  http://www.nta.no/brukere/DVC/ *  P.O.Box 83                        tel.:   +47 63 84 84 00 *  N-2007 Kjeller, Norway            fax.:   +47 63 81 00 76 * ************************************************************************//* * Disclaimer of Warranty * * These software programs are available to the user without any * license fee or royalty on an "as is" basis. The University of * British Columbia disclaims any and all warranties, whether * express, implied, or statuary, including any implied warranties * or merchantability or of fitness for a particular purpose.  In no * event shall the copyright-holder be liable for any incidental, * punitive, or consequential damages of any kind whatsoever arising * from the use of these programs. * * This disclaimer of warranty extends to the user of these programs * and user's customers, employees, agents, transferees, successors, * and assigns. * * The University of British Columbia does not represent or warrant * that the programs furnished hereunder are free of infringement of * any third-party patents. * * Commercial implementations of H.263, including shareware, are * subject to royalty fees to patent holders.  Many of these patents * are general enough such that they are unavoidable regardless of * implementation design. **/#define sign(a)        ((a) < 0 ? -1 : 1)#define Int(a)          ((a) < 0 ? (int)(a-0.5) : (int)(a))#define mnint(a)	((a) < 0 ? (int)(a - 0.5) : (int)(a + 0.5))#define mfloor(a)       ((a) < 0 ? (int)(a - 0.5) : (int)(a))#define mmax(a, b)        ((a) > (b) ? (a) : (b))#define mmin(a, b)        ((a) < (b) ? (a) : (b))#define limit(x) \{ \    if (x > 255) x = 255; \    if (x <   0)   x = 0; \}