joachim99@8: /***************************************************************************
joachim99@8:                           common.h  -  Things that are needed often
joachim99@8:                              -------------------
joachim99@8:     begin                : Mon Mar 18 2002
joachim99@8:     copyright            : (C) 2002 by Joachim Eibl
joachim99@8:     email                : joachim.eibl@gmx.de
joachim99@8:  ***************************************************************************/
joachim99@8: 
joachim99@8: /***************************************************************************
joachim99@8:  *                                                                         *
joachim99@8:  *   This program is free software; you can redistribute it and/or modify  *
joachim99@8:  *   it under the terms of the GNU General Public License as published by  *
joachim99@8:  *   the Free Software Foundation; either version 2 of the License, or     *
joachim99@8:  *   (at your option) any later version.                                   *
joachim99@8:  *                                                                         *
joachim99@8:  ***************************************************************************/
joachim99@8: 
joachim99@8: #ifndef _COMMON_H
joachim99@8: #define _COMMON_H
joachim99@8: 
joachim99@8: template< class T >
joachim99@8: T min2( T x, T y )
joachim99@8: {
joachim99@8:    return x<y ? x : y;
joachim99@8: }
joachim99@8: template< class T >
joachim99@8: T max2( T x, T y )
joachim99@8: {
joachim99@8:    return x>y ? x : y;
joachim99@8: }
joachim99@8: 
joachim99@8: typedef unsigned char UINT8;
joachim99@8: typedef unsigned short UINT16;
joachim99@8: typedef unsigned int UINT32;
joachim99@8: 
joachim99@8: 
joachim99@8: template <class T>
joachim99@8: T min3( T d1, T d2, T d3 )
joachim99@8: {
joachim99@8:    if ( d1 < d2  &&  d1 < d3 ) return d1;
joachim99@8:    if ( d2 < d3 ) return d2;
joachim99@8:    return d3;
joachim99@8: }
joachim99@8: 
joachim99@8: template <class T>
joachim99@8: T max3( T d1, T d2, T d3 )
joachim99@8: {
joachim99@8: 
joachim99@8:    if ( d1 > d2  &&  d1 > d3 ) return d1;
joachim99@8: 
joachim99@8: 
joachim99@8:    if ( d2 > d3 ) return d2;
joachim99@8:    return d3;
joachim99@8: 
joachim99@8: }
joachim99@8: 
joachim99@8: template <class T>
joachim99@8: T minMaxLimiter( T d, T minimum, T maximum )
joachim99@8: {
joachim99@8:    assert(minimum<=maximum);
joachim99@8:    if ( d < minimum ) return minimum;
joachim99@8:    if ( d > maximum ) return maximum;
joachim99@8:    return d;
joachim99@8: }
joachim99@8: 
joachim99@8: #endif