src/lib/openjp3d/pi.c

   1 /*
   2  * Copyright (c) 2001-2003, David Janssens
   3  * Copyright (c) 2002-2003, Yannick Verschueren
   4  * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
   5  * Copyright (c) 2005, Herve Drolon, FreeImage Team
   6  * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
   7  * Copyright (c) 2006, M�nica D�ez, LPI-UVA, Spain
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "opj_includes.h"
  33
  34 /** @defgroup PI PI - Implementation of a packet iterator */
  35 /*@{*/
  36
  37 /** @name Funciones locales */
  38 /*@{*/
  39
  40 /**
  41 Get next packet in layer-resolution-component-precinct order.
  42 @param pi packet iterator to modify
  43 @return returns false if pi pointed to the last packet or else returns true
  44 */
  45 static bool pi_next_lrcp(opj_pi_iterator_t * pi);
  46 /**
  47 Get next packet in resolution-layer-component-precinct order.
  48 @param pi packet iterator to modify
  49 @return returns false if pi pointed to the last packet or else returns true
  50 */
  51 static bool pi_next_rlcp(opj_pi_iterator_t * pi);
  52 /**
  53 Get next packet in resolution-precinct-component-layer order.
  54 @param pi packet iterator to modify
  55 @return returns false if pi pointed to the last packet or else returns true
  56 */
  57 static bool pi_next_rpcl(opj_pi_iterator_t * pi);
  58 /**
  59 Get next packet in precinct-component-resolution-layer order.
  60 @param pi packet iterator to modify
  61 @return returns false if pi pointed to the last packet or else returns true
  62 */
  63 static bool pi_next_pcrl(opj_pi_iterator_t * pi);
  64 /**
  65 Get next packet in component-precinct-resolution-layer order.
  66 @param pi packet iterator to modify
  67 @return returns false if pi pointed to the last packet or else returns true
  68 */
  69 static bool pi_next_cprl(opj_pi_iterator_t * pi);
  70
  71 /*@}*/
  72
  73 /*@}*/
  74
  75 /*
  76 ==========================================================
  77    local functions
  78 ==========================================================
  79 */
  80
  81 static bool pi_next_lrcp(opj_pi_iterator_t * pi) {
  82         opj_pi_comp_t *comp = NULL;
  83         opj_pi_resolution_t *res = NULL;
  84         long index = 0;
  85
  86         if (!pi->first) {
  87                 comp = &pi->comps[pi->compno];
  88                 res = &comp->resolutions[pi->resno];
  89                 goto LABEL_SKIP;
  90         } else {
  91                 pi->first = 0;
  92         }
  93
  94         for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
  95                 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
  96                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
  97                                 comp = &pi->comps[pi->compno];
  98                                 if (pi->resno >= comp->numresolution[0]) {
  99                                         continue;
 100                                 }
 101                                 res = &comp->resolutions[pi->resno];
 102                                 /*for (pi->precno = 0; pi->precno < (res->prctno[0] * res->prctno[1]); pi->precno++) {*/
 103                                 for (pi->precno = 0; pi->precno < (res->prctno[0] * res->prctno[1] * res->prctno[2]); pi->precno++) {
 104                                         index = pi->layno * pi->step_l
 105                                                 + pi->resno * pi->step_r
 106                                                 + pi->compno * pi->step_c
 107                                                 + pi->precno * pi->step_p;
 108                                         if (!pi->include[index]) {
 109                                                 pi->include[index] = 1;
 110                                                 return true;
 111                                         }
 112 LABEL_SKIP:;
 113
 114                                 }
 115                         }
 116                 }
 117         }
 118
 119         return false;
 120 }
 121
 122 static bool pi_next_rlcp(opj_pi_iterator_t * pi) {
 123         opj_pi_comp_t *comp = NULL;
 124         opj_pi_resolution_t *res = NULL;
 125         long index = 0;
 126
 127         if (!pi->first) {
 128                 comp = &pi->comps[pi->compno];
 129                 res = &comp->resolutions[pi->resno];
 130                 goto LABEL_SKIP;
 131         } else {
 132                 pi->first = 0;
 133         }
 134
 135         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
 136                 for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
 137                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 138                                 comp = &pi->comps[pi->compno];
 139                                 if (pi->resno >= comp->numresolution[0]) {
 140                                         continue;
 141                                 }
 142                                 res = &comp->resolutions[pi->resno];
 143                                 /*for (pi->precno = 0; pi->precno < (res->prctno[0] * res->prctno[1]); pi->precno++) {*/
 144                                 for (pi->precno = 0; pi->precno < (res->prctno[0] * res->prctno[1] * res->prctno[2]); pi->precno++) {
 145                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 146                                         if (!pi->include[index]) {
 147                                                 pi->include[index] = 1;
 148                                                 return true;
 149                                         }
 150 LABEL_SKIP:;
 151                                 }
 152                         }
 153                 }
 154         }
 155
 156         return false;
 157 }
 158
 159 static bool pi_next_rpcl(opj_pi_iterator_t * pi) {
 160         opj_pi_comp_t *comp = NULL;
 161         opj_pi_resolution_t *res = NULL;
 162         long index = 0;
 163
 164         if (!pi->first) {
 165                 goto LABEL_SKIP;
 166         } else {
 167                 int compno, resno;
 168                 pi->first = 0;
 169                 pi->dx = 0;
 170                 pi->dy = 0;
 171                 for (compno = 0; compno < pi->numcomps; compno++) {
 172                         comp = &pi->comps[compno];
 173                         for (resno = 0; resno < comp->numresolution[0]; resno++) {
 174                                 int dx, dy,dz;
 175                                 res = &comp->resolutions[resno];
 176                                 dx = comp->dx * (1 << (res->pdx + comp->numresolution[0] - 1 - resno));
 177                                 dy = comp->dy * (1 << (res->pdy + comp->numresolution[1] - 1 - resno));
 178                                 dz = comp->dz * (1 << (res->pdz + comp->numresolution[2] - 1 - resno));
 179                                 pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
 180                                 pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
 181                                 pi->dz = !pi->dz ? dz : int_min(pi->dz, dz);
 182                         }
 183                 }
 184         }
 185
 186         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
 187                 for (pi->z = pi->tz0; pi->z < pi->tz1; pi->z += pi->dz - (pi->z % pi->dz)) {
 188                         for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
 189                                 for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
 190                                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 191                                                 int levelnox, levelnoy, levelnoz;
 192                                                 int trx0, try0, trz0;
 193                                                 int trx1, try1, trz1;
 194                                                 int rpx, rpy, rpz;
 195                                                 int prci, prcj, prck;
 196                                                 comp = &pi->comps[pi->compno];
 197                                                 if (pi->resno >= comp->numresolution[0]) {
 198                                                         continue;
 199                                                 }
 200                                                 res = &comp->resolutions[pi->resno];
 201                                                 levelnox = comp->numresolution[0] - 1 - pi->resno;
 202                                                 levelnoy = comp->numresolution[1] - 1 - pi->resno;
 203                                                 levelnoz = comp->numresolution[2] - 1 - pi->resno;
 204                                                 trx0 = int_ceildiv(pi->tx0, comp->dx << levelnox);
 205                                                 try0 = int_ceildiv(pi->ty0, comp->dy << levelnoy);
 206                                                 trz0 = int_ceildiv(pi->tz0, comp->dz << levelnoz);
 207                                                 trx1 = int_ceildiv(pi->tx1, comp->dx << levelnox);
 208                                                 try1 = int_ceildiv(pi->ty1, comp->dy << levelnoy);
 209                                                 trz1 = int_ceildiv(pi->tz1, comp->dz << levelnoz);
 210                                                 rpx = res->pdx + levelnox;
 211                                                 rpy = res->pdy + levelnoy;
 212                                                 rpz = res->pdz + levelnoz;
 213                                                 if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelnox) % (1 << rpx)))) {
 214                                                         continue;
 215                                                 }
 216                                                 if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelnoy) % (1 << rpx)))) {
 217                                                         continue;
 218                                                 }
 219                                                 if ((!(pi->z % (comp->dz << rpz) == 0) || (pi->z == pi->tz0 && (trz0 << levelnoz) % (1 << rpx)))) {
 220                                                         continue;
 221                                                 }
 222                                                 if ((res->prctno[0]==0)||(res->prctno[1]==0)||(res->prctno[2]==0)) continue;
 223
 224                                                 if ((trx0==trx1)||(try0==try1)||(trz0==trz1)) continue;
 225
 226                                                 prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelnox), res->pdx)
 227                                                         - int_floordivpow2(trx0, res->pdx);
 228                                                 prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelnoy), res->pdy)
 229                                                         - int_floordivpow2(try0, res->pdy);
 230                                                 prck = int_floordivpow2(int_ceildiv(pi->z, comp->dz << levelnoz), res->pdz)
 231                                                         - int_floordivpow2(trz0, res->pdz);
 232                                                 pi->precno = prci + prcj * res->prctno[0] + prck * res->prctno[0] * res->prctno[1];
 233                                                 for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
 234                                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 235                                                         if (!pi->include[index]) {
 236                                                                 pi->include[index] = 1;
 237                                                                 return true;
 238                                                         }
 239         LABEL_SKIP:;
 240                                                 }
 241                                         }
 242                                 }
 243                         }
 244                 }
 245         }
 246
 247         return false;
 248 }
 249
 250 static bool pi_next_pcrl(opj_pi_iterator_t * pi) {
 251         opj_pi_comp_t *comp = NULL;
 252         opj_pi_resolution_t *res = NULL;
 253         long index = 0;
 254
 255         if (!pi->first) {
 256                 comp = &pi->comps[pi->compno];
 257                 goto LABEL_SKIP;
 258         } else {
 259                 int compno, resno;
 260                 pi->first = 0;
 261                 pi->dx = 0;
 262                 pi->dy = 0;
 263                 pi->dz = 0;
 264                 for (compno = 0; compno < pi->numcomps; compno++) {
 265                         comp = &pi->comps[compno];
 266                         for (resno = 0; resno < comp->numresolution[0]; resno++) {
 267                                 int dx, dy, dz;
 268                                 res = &comp->resolutions[resno];
 269                                 dx = comp->dx * (1 << (res->pdx + comp->numresolution[0] - 1 - resno));
 270                                 dy = comp->dy * (1 << (res->pdy + comp->numresolution[1] - 1 - resno));
 271                                 dz = comp->dz * (1 << (res->pdy + comp->numresolution[2] - 1 - resno));
 272                                 pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
 273                                 pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
 274                                 pi->dz = !pi->dz ? dz : int_min(pi->dz, dz);
 275                         }
 276                 }
 277         }
 278
 279 for (pi->z = pi->tz0; pi->z < pi->tz1; pi->z += pi->dz - (pi->z % pi->dz)) {
 280         for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
 281                 for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
 282                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 283                                 comp = &pi->comps[pi->compno];
 284                                 for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolution[0]); pi->resno++) {
 285                                                 int levelnox, levelnoy, levelnoz;
 286                                                 int trx0, try0, trz0;
 287                                                 int trx1, try1, trz1;
 288                                                 int rpx, rpy, rpz;
 289                                                 int prci, prcj, prck;
 290                                                 comp = &pi->comps[pi->compno];
 291                                                 if (pi->resno >= comp->numresolution[0]) {
 292                                                         continue;
 293                                                 }
 294                                                 res = &comp->resolutions[pi->resno];
 295                                                 levelnox = comp->numresolution[0] - 1 - pi->resno;
 296                                                 levelnoy = comp->numresolution[1] - 1 - pi->resno;
 297                                                 levelnoz = comp->numresolution[2] - 1 - pi->resno;
 298                                                 trx0 = int_ceildiv(pi->tx0, comp->dx << levelnox);
 299                                                 try0 = int_ceildiv(pi->ty0, comp->dy << levelnoy);
 300                                                 trz0 = int_ceildiv(pi->tz0, comp->dz << levelnoz);
 301                                                 trx1 = int_ceildiv(pi->tx1, comp->dx << levelnox);
 302                                                 try1 = int_ceildiv(pi->ty1, comp->dy << levelnoy);
 303                                                 trz1 = int_ceildiv(pi->tz1, comp->dz << levelnoz);
 304                                                 rpx = res->pdx + levelnox;
 305                                                 rpy = res->pdy + levelnoy;
 306                                                 rpz = res->pdz + levelnoz;
 307                                                 if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelnox) % (1 << rpx)))) {
 308                                                         continue;
 309                                                 }
 310                                                 if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelnoy) % (1 << rpx)))) {
 311                                                         continue;
 312                                                 }
 313                                                 if ((!(pi->z % (comp->dz << rpz) == 0) || (pi->z == pi->tz0 && (trz0 << levelnoz) % (1 << rpx)))) {
 314                                                         continue;
 315                                                 }
 316                                                 if ((res->prctno[0]==0)||(res->prctno[1]==0)||(res->prctno[2]==0)) continue;
 317
 318                                                 if ((trx0==trx1)||(try0==try1)||(trz0==trz1)) continue;
 319
 320                                                 prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelnox), res->pdx)
 321                                                         - int_floordivpow2(trx0, res->pdx);
 322                                                 prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelnoy), res->pdy)
 323                                                         - int_floordivpow2(try0, res->pdy);
 324                                                 prck = int_floordivpow2(int_ceildiv(pi->z, comp->dz << levelnoz), res->pdz)
 325                                                         - int_floordivpow2(trz0, res->pdz);
 326                                                 pi->precno = prci + prcj * res->prctno[0] + prck * res->prctno[0] * res->prctno[1];
 327                                                 for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
 328                                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 329                                                         if (!pi->include[index]) {
 330                                                                 pi->include[index] = 1;
 331                                                                 return true;
 332                                                         }
 333 LABEL_SKIP:;
 334                                         }
 335                                 }
 336                         }
 337                 }
 338         }
 339 }
 340
 341         return false;
 342 }
 343
 344 static bool pi_next_cprl(opj_pi_iterator_t * pi) {
 345         opj_pi_comp_t *comp = NULL;
 346         opj_pi_resolution_t *res = NULL;
 347         long index = 0;
 348
 349         if (!pi->first) {
 350                 comp = &pi->comps[pi->compno];
 351                 goto LABEL_SKIP;
 352         } else {
 353                 pi->first = 0;
 354         }
 355
 356         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 357                 int resno;
 358                 comp = &pi->comps[pi->compno];
 359                 pi->dx = 0;
 360                 pi->dy = 0;
 361                 pi->dz = 0;
 362                 for (resno = 0; resno < comp->numresolution[0]; resno++) {
 363                         int dx, dy, dz;
 364                         res = &comp->resolutions[resno];
 365                         dx = comp->dx * (1 << (res->pdx + comp->numresolution[0] - 1 - resno));
 366                         dy = comp->dy * (1 << (res->pdy + comp->numresolution[1] - 1 - resno));
 367                         dz = comp->dz * (1 << (res->pdz + comp->numresolution[2] - 1 - resno));
 368                         pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
 369                         pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
 370                         pi->dz = !pi->dz ? dz : int_min(pi->dz, dz);
 371                 }
 372         for (pi->z = pi->tz0; pi->z < pi->tz1; pi->z += pi->dz - (pi->z % pi->dz)) {
 373                 for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
 374                         for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
 375                                 for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolution[0]); pi->resno++) {
 376                                                 int levelnox, levelnoy, levelnoz;
 377                                                 int trx0, try0, trz0;
 378                                                 int trx1, try1, trz1;
 379                                                 int rpx, rpy, rpz;
 380                                                 int prci, prcj, prck;
 381                                                 comp = &pi->comps[pi->compno];
 382                                                 if (pi->resno >= comp->numresolution[0]) {
 383                                                         continue;
 384                                                 }
 385                                                 res = &comp->resolutions[pi->resno];
 386                                                 levelnox = comp->numresolution[0] - 1 - pi->resno;
 387                                                 levelnoy = comp->numresolution[1] - 1 - pi->resno;
 388                                                 levelnoz = comp->numresolution[2] - 1 - pi->resno;
 389                                                 trx0 = int_ceildiv(pi->tx0, comp->dx << levelnox);
 390                                                 try0 = int_ceildiv(pi->ty0, comp->dy << levelnoy);
 391                                                 trz0 = int_ceildiv(pi->tz0, comp->dz << levelnoz);
 392                                                 trx1 = int_ceildiv(pi->tx1, comp->dx << levelnox);
 393                                                 try1 = int_ceildiv(pi->ty1, comp->dy << levelnoy);
 394                                                 trz1 = int_ceildiv(pi->tz1, comp->dz << levelnoz);
 395                                                 rpx = res->pdx + levelnox;
 396                                                 rpy = res->pdy + levelnoy;
 397                                                 rpz = res->pdz + levelnoz;
 398                                                 if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelnox) % (1 << rpx)))) {
 399                                                         continue;
 400                                                 }
 401                                                 if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelnoy) % (1 << rpx)))) {
 402                                                         continue;
 403                                                 }
 404                                                 if ((!(pi->z % (comp->dz << rpz) == 0) || (pi->z == pi->tz0 && (trz0 << levelnoz) % (1 << rpx)))) {
 405                                                         continue;
 406                                                 }
 407                                                 if ((res->prctno[0]==0)||(res->prctno[1]==0)||(res->prctno[2]==0)) continue;
 408
 409                                                 if ((trx0==trx1)||(try0==try1)||(trz0==trz1)) continue;
 410
 411                                                 prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelnox), res->pdx)
 412                                                         - int_floordivpow2(trx0, res->pdx);
 413                                                 prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelnoy), res->pdy)
 414                                                         - int_floordivpow2(try0, res->pdy);
 415                                                 prck = int_floordivpow2(int_ceildiv(pi->z, comp->dz << levelnoz), res->pdz)
 416                                                         - int_floordivpow2(trz0, res->pdz);
 417                                                 pi->precno = prci + prcj * res->prctno[0] + prck * res->prctno[0] * res->prctno[1];
 418                                                 for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
 419                                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 420                                                         if (!pi->include[index]) {
 421                                                                 pi->include[index] = 1;
 422                                                                 return true;
 423                                                         }
 424         LABEL_SKIP:;
 425                                                 }
 426                                         }
 427                                 }
 428                         }
 429                 }
 430         }
 431
 432         return false;
 433 }
 434
 435 /*
 436 ==========================================================
 437    Packet iterator interface
 438 ==========================================================
 439 */
 440
 441 opj_pi_iterator_t *pi_create(opj_volume_t *volume, opj_cp_t *cp, int tileno) {
 442         int p, q, r;
 443         int compno, resno, pino;
 444         opj_pi_iterator_t *pi = NULL;
 445         opj_tcp_t *tcp = NULL;
 446         opj_tccp_t *tccp = NULL;
 447         size_t array_size;
 448
 449         tcp = &cp->tcps[tileno];
 450
 451         array_size = (tcp->numpocs + 1) * sizeof(opj_pi_iterator_t);
 452         pi = (opj_pi_iterator_t *) opj_malloc(array_size);
 453         if(!pi) {
 454                 fprintf(stdout,"[ERROR] Malloc of opj_pi_iterator failed \n");
 455                 return NULL;
 456         }
 457
 458         for (pino = 0; pino < tcp->numpocs + 1; pino++) {       /* change */
 459                 int maxres = 0;
 460                 int maxprec = 0;
 461                 p = tileno % cp->tw;
 462                 q = tileno / cp->tw;
 463                 r = tileno / (cp->tw * cp->th);
 464
 465                 pi[pino].tx0 = int_max(cp->tx0 + p * cp->tdx, volume->x0);
 466                 pi[pino].ty0 = int_max(cp->ty0 + q * cp->tdy, volume->y0);
 467                 pi[pino].tz0 = int_max(cp->tz0 + r * cp->tdz, volume->z0);
 468                 pi[pino].tx1 = int_min(cp->tx0 + (p + 1) * cp->tdx, volume->x1);
 469                 pi[pino].ty1 = int_min(cp->ty0 + (q + 1) * cp->tdy, volume->y1);
 470                 pi[pino].tz1 = int_min(cp->tz0 + (r + 1) * cp->tdz, volume->z1);
 471                 pi[pino].numcomps = volume->numcomps;
 472
 473                 array_size = volume->numcomps * sizeof(opj_pi_comp_t);
 474                 pi[pino].comps = (opj_pi_comp_t *) opj_malloc(array_size);
 475                 if(!pi[pino].comps) {
 476                         fprintf(stdout,"[ERROR] Malloc of opj_pi_comp failed \n");
 477                         pi_destroy(pi, cp, tileno);
 478                         return NULL;
 479                 }
 480                 memset(pi[pino].comps, 0, array_size);
 481
 482                 for (compno = 0; compno < pi->numcomps; compno++) {
 483                         int tcx0, tcx1, tcy0, tcy1, tcz0, tcz1;
 484                         int i;
 485                         opj_pi_comp_t *comp = &pi[pino].comps[compno];
 486                         tccp = &tcp->tccps[compno];
 487
 488                         comp->dx = volume->comps[compno].dx;
 489                         comp->dy = volume->comps[compno].dy;
 490                         comp->dz = volume->comps[compno].dz;
 491                         for (i = 0; i < 3; i++) {
 492                                 comp->numresolution[i] = tccp->numresolution[i];
 493                                 if (comp->numresolution[i] > maxres) {
 494                                         maxres = comp->numresolution[i];
 495                                 }
 496                         }
 497                         array_size = comp->numresolution[0] * sizeof(opj_pi_resolution_t);
 498                         comp->resolutions =     (opj_pi_resolution_t *) opj_malloc(array_size);
 499                         if(!comp->resolutions) {
 500                                 fprintf(stdout,"[ERROR] Malloc of opj_pi_resolution failed \n");
 501                                 pi_destroy(pi, cp, tileno);
 502                                 return NULL;
 503                         }
 504
 505                         tcx0 = int_ceildiv(pi->tx0, comp->dx);
 506                         tcy0 = int_ceildiv(pi->ty0, comp->dy);
 507                         tcz0 = int_ceildiv(pi->tz0, comp->dz);
 508                         tcx1 = int_ceildiv(pi->tx1, comp->dx);
 509                         tcy1 = int_ceildiv(pi->ty1, comp->dy);
 510                         tcz1 = int_ceildiv(pi->tz1, comp->dz);
 511
 512                         for (resno = 0; resno < comp->numresolution[0]; resno++) {
 513                                 int levelnox, levelnoy, levelnoz, diff;
 514                                 int rx0, ry0, rz0, rx1, ry1, rz1;
 515                                 int px0, py0, pz0, px1, py1, pz1;
 516                                 opj_pi_resolution_t *res = &comp->resolutions[resno];
 517                                 if (tccp->csty & J3D_CCP_CSTY_PRT) {
 518                                         res->pdx = tccp->prctsiz[0][resno];
 519                                         res->pdy = tccp->prctsiz[1][resno];
 520                                         res->pdz = tccp->prctsiz[2][resno];
 521                                 } else {
 522                                         res->pdx = 15;
 523                                         res->pdy = 15;
 524                                         res->pdz = 15;
 525                                 }
 526                                 levelnox = comp->numresolution[0] - 1 - resno;
 527                                 levelnoy = comp->numresolution[1] - 1 - resno;
 528         levelnoz = comp->numresolution[2] - 1 - resno;
 529                                 if (levelnoz < 0) levelnoz = 0;
 530                                 diff = comp->numresolution[0] - comp->numresolution[2];
 531
 532                                 rx0 = int_ceildivpow2(tcx0, levelnox);
 533                                 ry0 = int_ceildivpow2(tcy0, levelnoy);
 534                                 rz0 = int_ceildivpow2(tcz0, levelnoz);
 535                                 rx1 = int_ceildivpow2(tcx1, levelnox);
 536                                 ry1 = int_ceildivpow2(tcy1, levelnoy);
 537                                 rz1 = int_ceildivpow2(tcz1, levelnoz);
 538                                 px0 = int_floordivpow2(rx0, res->pdx) << res->pdx;
 539                                 py0 = int_floordivpow2(ry0, res->pdy) << res->pdy;
 540                                 pz0 = int_floordivpow2(rz0, res->pdz) << res->pdz;
 541                                 px1 = int_ceildivpow2(rx1, res->pdx) << res->pdx;
 542                                 py1 = int_ceildivpow2(ry1, res->pdy) << res->pdy;
 543                                 pz1 = int_ceildivpow2(rz1, res->pdz) << res->pdz;
 544                                 res->prctno[0] = (rx0==rx1)? 0 : ((px1 - px0) >> res->pdx);
 545                                 res->prctno[1] = (ry0==ry1)? 0 : ((py1 - py0) >> res->pdy);
 546                                 res->prctno[2] = (rz0==rz1)? 0 : ((pz1 - pz0) >> res->pdz);
 547
 548                                 if (res->prctno[0]*res->prctno[1]*res->prctno[2] > maxprec) {
 549                                         maxprec = res->prctno[0]*res->prctno[1]*res->prctno[2];
 550                                 }
 551                         }
 552                 }
 553
 554                 tccp = &tcp->tccps[0];
 555                 pi[pino].step_p = 1;
 556                 pi[pino].step_c = maxprec * pi[pino].step_p;
 557                 pi[pino].step_r = volume->numcomps * pi[pino].step_c;
 558                 pi[pino].step_l = maxres * pi[pino].step_r;
 559
 560                 if (pino == 0) {
 561                         array_size = volume->numcomps * maxres * tcp->numlayers * maxprec * sizeof(short int);
 562                         pi[pino].include = (short int *) opj_malloc(array_size);
 563                         if(!pi[pino].include) {
 564                                 fprintf(stdout,"[ERROR] Malloc of pi[pino].include failed \n");
 565                                 pi_destroy(pi, cp, tileno);
 566                                 return NULL;
 567                         }
 568                 }
 569                 else {
 570                         pi[pino].include = pi[pino - 1].include;
 571                 }
 572
 573                 if (tcp->POC == 0) {
 574                         pi[pino].first = 1;
 575                         pi[pino].poc.resno0 = 0;
 576                         pi[pino].poc.compno0 = 0;
 577                         pi[pino].poc.layno1 = tcp->numlayers;
 578                         pi[pino].poc.resno1 = maxres;
 579                         pi[pino].poc.compno1 = volume->numcomps;
 580                         pi[pino].poc.prg = tcp->prg;
 581                 } else {
 582                         pi[pino].first = 1;
 583                         pi[pino].poc.resno0 = tcp->pocs[pino].resno0;
 584                         pi[pino].poc.compno0 = tcp->pocs[pino].compno0;
 585                         pi[pino].poc.layno1 = tcp->pocs[pino].layno1;
 586                         pi[pino].poc.resno1 = tcp->pocs[pino].resno1;
 587                         pi[pino].poc.compno1 = tcp->pocs[pino].compno1;
 588                         pi[pino].poc.prg = tcp->pocs[pino].prg;
 589                 }
 590         }
 591
 592         return pi;
 593 }
 594
 595 void pi_destroy(opj_pi_iterator_t *pi, opj_cp_t *cp, int tileno) {
 596         int compno, pino;
 597         opj_tcp_t *tcp = &cp->tcps[tileno];
 598         if(pi) {
 599                 for (pino = 0; pino < tcp->numpocs + 1; pino++) {
 600                         if(pi[pino].comps) {
 601                                 for (compno = 0; compno < pi->numcomps; compno++) {
 602                                         opj_pi_comp_t *comp = &pi[pino].comps[compno];
 603                                         if(comp->resolutions) {
 604                                                 opj_free(comp->resolutions);
 605                                         }
 606                                 }
 607                                 opj_free(pi[pino].comps);
 608                         }
 609                 }
 610                 if(pi->include) {
 611                         opj_free(pi->include);
 612                 }
 613                 opj_free(pi);
 614         }
 615 }
 616
 617 bool pi_next(opj_pi_iterator_t * pi) {
 618         switch (pi->poc.prg) {
 619                 case LRCP:
 620                         return pi_next_lrcp(pi);
 621                 case RLCP:
 622                         return pi_next_rlcp(pi);
 623                 case RPCL:
 624                         return pi_next_rpcl(pi);
 625                 case PCRL:
 626                         return pi_next_pcrl(pi);
 627                 case CPRL:
 628                         return pi_next_cprl(pi);
 629         }
 630
 631         return false;
 632 }
 633