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 Software License 11 * 12 * IMAGE POWER JPEG-2000 PUBLIC LICENSE 13 * ************************************ 14 * 15 * GRANT: 16 * 17 * Permission is hereby granted, free of charge, to any person (the "User") 18 * obtaining a copy of this software and associated documentation, to deal 19 * in the JasPer Software without restriction, including without limitation 20 * the right to use, copy, modify, merge, publish, distribute, sublicense, 21 * and/or sell copies of the JasPer Software (in source and binary forms), 22 * and to permit persons to whom the JasPer Software is furnished to do so, 23 * provided further that the License Conditions below are met. 24 * 25 * License Conditions 26 * ****************** 27 * 28 * A. Redistributions of source code must retain the above copyright notice, 29 * and this list of conditions, and the following disclaimer. 30 * 31 * B. Redistributions in binary form must reproduce the above copyright 32 * notice, and this list of conditions, and the following disclaimer in 33 * the documentation and/or other materials provided with the distribution. 34 * 35 * C. Neither the name of Image Power, Inc. nor any other contributor 36 * (including, but not limited to, the University of British Columbia and 37 * Michael David Adams) may be used to endorse or promote products derived 38 * from this software without specific prior written permission. 39 * 40 * D. User agrees that it shall not commence any action against Image Power, 41 * Inc., the University of British Columbia, Michael David Adams, or any 42 * other contributors (collectively "Licensors") for infringement of any 43 * intellectual property rights ("IPR") held by the User in respect of any 44 * technology that User owns or has a right to license or sublicense and 45 * which is an element required in order to claim compliance with ISO/IEC 46 * 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property 47 * rights worldwide arising under statutory or common law, and whether 48 * or not perfected, including, without limitation, all (i) patents and 49 * patent applications owned or licensable by User; (ii) rights associated 50 * with works of authorship including copyrights, copyright applications, 51 * copyright registrations, mask work rights, mask work applications, 52 * mask work registrations; (iii) rights relating to the protection of 53 * trade secrets and confidential information; (iv) any right analogous 54 * to those set forth in subsections (i), (ii), or (iii) and any other 55 * proprietary rights relating to intangible property (other than trademark, 56 * trade dress, or service mark rights); and (v) divisions, continuations, 57 * renewals, reissues and extensions of the foregoing (as and to the extent 58 * applicable) now existing, hereafter filed, issued or acquired. 59 * 60 * E. If User commences an infringement action against any Licensor(s) then 61 * such Licensor(s) shall have the right to terminate User's license and 62 * all sublicenses that have been granted hereunder by User to other parties. 63 * 64 * F. This software is for use only in hardware or software products that 65 * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license 66 * or right to this Software is granted for products that do not comply 67 * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased 68 * from the ISO. 69 * 70 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. 71 * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER 72 * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND 73 * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY 74 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, 75 * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE, 76 * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING 77 * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE 78 * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING 79 * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS. 80 * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE 81 * IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE 82 * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY 83 * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY 84 * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING, 85 * REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, 86 * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE 87 * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC., 88 * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE 89 * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO 90 * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR 91 * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION, 92 * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR 93 * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF 94 * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY 95 * OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT 96 * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR 97 * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING 98 * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, 99 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT 100 * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE 101 * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY 102 * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE 103 * ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS 104 * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT 105 * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING 106 * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS 107 * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE 108 * NOTICE SPECIFIED IN THIS SECTION. 109 * 110 * __END_OF_JASPER_LICENSE__ 111 */ 112 113/* 114 * Fixed-Point Number Class 115 * 116 * $Id: jpc_fix.h 14449 2005-10-20 12:15:56Z stippi $ 117 */ 118 119#ifndef JPC_FIX_H 120#define JPC_FIX_H 121 122/******************************************************************************\ 123* Includes. 124\******************************************************************************/ 125 126#include "jasper/jas_types.h" 127#include "jasper/jas_fix.h" 128 129/******************************************************************************\ 130* Basic parameters of the fixed-point type. 131\******************************************************************************/ 132 133/* The integral type used to represent a fixed-point number. This 134 type must be capable of representing values from -(2^31) to 2^31-1 135 (inclusive). */ 136typedef int_fast32_t jpc_fix_t; 137 138/* The integral type used to respresent higher-precision intermediate results. 139 This type should be capable of representing values from -(2^63) to 2^63-1 140 (inclusive). */ 141typedef int_fast64_t jpc_fix_big_t; 142 143/* The number of bits used for the fractional part of a fixed-point number. */ 144#define JPC_FIX_FRACBITS 13 145 146/******************************************************************************\ 147* Instantiations of the generic fixed-point number macros for the 148* parameters given above. (Too bad C does not support templates, eh?) 149* The purpose of these macros is self-evident if one examines the 150* corresponding macros in the jasper/jas_fix.h header file. 151\******************************************************************************/ 152 153#define JPC_FIX_ZERO JAS_FIX_ZERO(jpc_fix_t, JPC_FIX_FRACBITS) 154#define JPC_FIX_ONE JAS_FIX_ONE(jpc_fix_t, JPC_FIX_FRACBITS) 155#define JPC_FIX_HALF JAS_FIX_HALF(jpc_fix_t, JPC_FIX_FRACBITS) 156 157#define jpc_inttofix(x) JAS_INTTOFIX(jpc_fix_t, JPC_FIX_FRACBITS, x) 158#define jpc_fixtoint(x) JAS_FIXTOINT(jpc_fix_t, JPC_FIX_FRACBITS, x) 159#define jpc_fixtodbl(x) JAS_FIXTODBL(jpc_fix_t, JPC_FIX_FRACBITS, x) 160#define jpc_dbltofix(x) JAS_DBLTOFIX(jpc_fix_t, JPC_FIX_FRACBITS, x) 161 162#define jpc_fix_add(x, y) JAS_FIX_ADD(jpc_fix_t, JPC_FIX_FRACBITS, x, y) 163#define jpc_fix_sub(x, y) JAS_FIX_SUB(jpc_fix_t, JPC_FIX_FRACBITS, x, y) 164#define jpc_fix_mul(x, y) \ 165 JAS_FIX_MUL(jpc_fix_t, JPC_FIX_FRACBITS, jpc_fix_big_t, x, y) 166#define jpc_fix_mulbyint(x, y) \ 167 JAS_FIX_MULBYINT(jpc_fix_t, JPC_FIX_FRACBITS, x, y) 168#define jpc_fix_div(x, y) \ 169 JAS_FIX_DIV(jpc_fix_t, JPC_FIX_FRACBITS, jpc_fix_big_t, x, y) 170#define jpc_fix_neg(x) JAS_FIX_NEG(jpc_fix_t, JPC_FIX_FRACBITS, x) 171#define jpc_fix_asl(x, n) JAS_FIX_ASL(jpc_fix_t, JPC_FIX_FRACBITS, x, n) 172#define jpc_fix_asr(x, n) JAS_FIX_ASR(jpc_fix_t, JPC_FIX_FRACBITS, x, n) 173 174#define jpc_fix_pluseq(x, y) JAS_FIX_PLUSEQ(jpc_fix_t, JPC_FIX_FRACBITS, x, y) 175#define jpc_fix_minuseq(x, y) JAS_FIX_MINUSEQ(jpc_fix_t, JPC_FIX_FRACBITS, x, y) 176#define jpc_fix_muleq(x, y) \ 177 JAS_FIX_MULEQ(jpc_fix_t, JPC_FIX_FRACBITS, jpc_fix_big_t, x, y) 178 179#define jpc_fix_abs(x) JAS_FIX_ABS(jpc_fix_t, JPC_FIX_FRACBITS, x) 180#define jpc_fix_isint(x) JAS_FIX_ISINT(jpc_fix_t, JPC_FIX_FRACBITS, x) 181#define jpc_fix_sgn(x) JAS_FIX_SGN(jpc_fix_t, JPC_FIX_FRACBITS, x) 182#define jpc_fix_round(x) JAS_FIX_ROUND(jpc_fix_t, JPC_FIX_FRACBITS, x) 183#define jpc_fix_floor(x) JAS_FIX_FLOOR(jpc_fix_t, JPC_FIX_FRACBITS, x) 184#define jpc_fix_trunc(x) JAS_FIX_TRUNC(jpc_fix_t, JPC_FIX_FRACBITS, x) 185 186/******************************************************************************\ 187* Extra macros for convenience. 188\******************************************************************************/ 189 190/* Compute the sum of three fixed-point numbers. */ 191#define jpc_fix_add3(x, y, z) jpc_fix_add(jpc_fix_add(x, y), z) 192 193#endif 194