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 * $Id: jpc_util.c 14449 2005-10-20 12:15:56Z stippi $ 115 */ 116 117/******************************************************************************\ 118* Includes 119\******************************************************************************/ 120 121#include <assert.h> 122#include <stdio.h> 123#include <string.h> 124#include <math.h> 125#include <stdlib.h> 126#include <stdarg.h> 127 128#include "jasper/jas_math.h" 129#include "jasper/jas_malloc.h" 130 131#include "jpc_fix.h" 132#include "jpc_cs.h" 133#include "jpc_flt.h" 134 135/******************************************************************************\ 136* Miscellaneous Functions 137\******************************************************************************/ 138 139int jpc_atoaf(char *s, int *numvalues, double **values) 140{ 141 static char delim[] = ", \t\n"; 142 char buf[4096]; 143 int n; 144 double *vs; 145 char *cp; 146 147 strncpy(buf, s, sizeof(buf)); 148 buf[sizeof(buf) - 1] = '\0'; 149 n = 0; 150 if ((cp = strtok(buf, delim))) { 151 ++n; 152 while ((cp = strtok(0, delim))) { 153 if (cp != '\0') { 154 ++n; 155 } 156 } 157 } 158 159 if (n) { 160 if (!(vs = jas_malloc(n * sizeof(double)))) { 161 return -1; 162 } 163 164 strncpy(buf, s, sizeof(buf)); 165 buf[sizeof(buf) - 1] = '\0'; 166 n = 0; 167 if ((cp = strtok(buf, delim))) { 168 vs[n] = atof(cp); 169 ++n; 170 while ((cp = strtok(0, delim))) { 171 if (cp != '\0') { 172 vs[n] = atof(cp); 173 ++n; 174 } 175 } 176 } 177 } else { 178 vs = 0; 179 } 180 181 *numvalues = n; 182 *values = vs; 183 184 return 0; 185} 186 187jas_seq_t *jpc_seq_upsample(jas_seq_t *x, int m) 188{ 189 jas_seq_t *z; 190 int i; 191 192 if (!(z = jas_seq_create(jas_seq_start(x) * m, (jas_seq_end(x) - 1) * m + 1))) 193 return 0; 194 for (i = jas_seq_start(z); i < jas_seq_end(z); i++) { 195 *jas_seq_getref(z, i) = (!JAS_MOD(i, m)) ? jas_seq_get(x, i / m) : 196 jpc_inttofix(0); 197 } 198 199 return z; 200} 201 202jpc_fix_t jpc_seq_norm(jas_seq_t *x) 203{ 204 jpc_fix_t s; 205 int i; 206 207 s = jpc_inttofix(0); 208 for (i = jas_seq_start(x); i < jas_seq_end(x); i++) { 209 s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(x, i), jas_seq_get(x, i))); 210 } 211 212 return jpc_dbltofix(sqrt(jpc_fixtodbl(s))); 213} 214 215jas_seq_t *jpc_seq_conv(jas_seq_t *x, jas_seq_t *y) 216{ 217 int i; 218 int j; 219 int k; 220 jas_seq_t *z; 221 jpc_fix_t s; 222 jpc_fix_t v; 223 224 z = jas_seq_create(jas_seq_start(x) + jas_seq_start(y), 225 jas_seq_end(x) + jas_seq_end(y) - 1); 226 assert(z); 227 for (i = jas_seq_start(z); i < jas_seq_end(z); i++) { 228 s = jpc_inttofix(0); 229 for (j = jas_seq_start(y); j < jas_seq_end(y); j++) { 230 k = i - j; 231 if (k < jas_seq_start(x) || k >= jas_seq_end(x)) { 232 v = JPC_FIX_ZERO; 233 } else { 234 v = jas_seq_get(x, k); 235 } 236 s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(y, j), v)); 237 } 238 *jas_seq_getref(z, i) = s; 239 } 240 241 return z; 242} 243