1 /* 2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of 3 * British Columbia. 4 * Copyright (c) 2001-2002 Michael David Adams. 5 * All rights reserved. 6 */ 7 8 /* __START_OF_JASPER_LICENSE__ 9 * 10 * JasPer License Version 2.0 11 * 12 * Copyright (c) 2001-2006 Michael David Adams 13 * Copyright (c) 1999-2000 Image Power, Inc. 14 * Copyright (c) 1999-2000 The University of British Columbia 15 * 16 * All rights reserved. 17 * 18 * Permission is hereby granted, free of charge, to any person (the 19 * "User") obtaining a copy of this software and associated documentation 20 * files (the "Software"), to deal in the Software without restriction, 21 * including without limitation the rights to use, copy, modify, merge, 22 * publish, distribute, and/or sell copies of the Software, and to permit 23 * persons to whom the Software is furnished to do so, subject to the 24 * following conditions: 25 * 26 * 1. The above copyright notices and this permission notice (which 27 * includes the disclaimer below) shall be included in all copies or 28 * substantial portions of the Software. 29 * 30 * 2. The name of a copyright holder shall not be used to endorse or 31 * promote products derived from the Software without specific prior 32 * written permission. 33 * 34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS 35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER 36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO 40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL 41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING 42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE 45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE 46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. 47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS 48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL 49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS 50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE 51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE 52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL 53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, 54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL 55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH 56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, 57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH 58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY 59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. 60 * 61 * __END_OF_JASPER_LICENSE__ 62 */ 63 64 /* 65 * Math-Related Code 66 * 67 * $Id: jas_math.h,v 1.2 2008-05-26 09:41:51 vp153 Exp $ 68 */ 69 70 #ifndef JAS_MATH_H 71 #define JAS_MATH_H 72 73 /******************************************************************************\ 74 * Includes 75 \******************************************************************************/ 76 77 #include <jasper/jas_config.h> 78 79 #include <assert.h> 80 #include <stdio.h> 81 #include <string.h> 82 83 #ifdef __cplusplus 84 extern "C" { 85 #endif 86 87 /******************************************************************************\ 88 * Macros 89 \******************************************************************************/ 90 91 /* Compute the absolute value. */ 92 #define JAS_ABS(x) \ 93 (((x) >= 0) ? (x) : (-(x))) 94 95 /* Compute the minimum of two values. */ 96 #define JAS_MIN(x, y) \ 97 (((x) < (y)) ? (x) : (y)) 98 99 /* Compute the maximum of two values. */ 100 #define JAS_MAX(x, y) \ 101 (((x) > (y)) ? (x) : (y)) 102 103 /* Compute the remainder from division (where division is defined such 104 that the remainder is always nonnegative). */ 105 #define JAS_MOD(x, y) \ 106 (((x) < 0) ? (((-x) % (y)) ? ((y) - ((-(x)) % (y))) : (0)) : ((x) % (y))) 107 108 /* Compute the integer with the specified number of least significant bits 109 set to one. */ 110 #define JAS_ONES(n) \ 111 ((1 << (n)) - 1) 112 113 #ifdef __cplusplus 114 } 115 #endif 116 117 #endif 118
