src/lib/openjp2/pi.c

   1 /*
   2  * The copyright in this software is being made available under the 2-clauses
   3  * BSD License, included below. This software may be subject to other third
   4  * party and contributor rights, including patent rights, and no such rights
   5  * are granted under this license.
   6  *
   7  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
   8  * Copyright (c) 2002-2014, Professor Benoit Macq
   9  * Copyright (c) 2001-2003, David Janssens
  10  * Copyright (c) 2002-2003, Yannick Verschueren
  11  * Copyright (c) 2003-2007, Francois-Olivier Devaux
  12  * Copyright (c) 2003-2014, Antonin Descampe
  13  * Copyright (c) 2005, Herve Drolon, FreeImage Team
  14  * Copyright (c) 2006-2007, Parvatha Elangovan
  15  * All rights reserved.
  16  *
  17  * Redistribution and use in source and binary forms, with or without
  18  * modification, are permitted provided that the following conditions
  19  * are met:
  20  * 1. Redistributions of source code must retain the above copyright
  21  *    notice, this list of conditions and the following disclaimer.
  22  * 2. Redistributions in binary form must reproduce the above copyright
  23  *    notice, this list of conditions and the following disclaimer in the
  24  *    documentation and/or other materials provided with the distribution.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  27  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  30  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  36  * POSSIBILITY OF SUCH DAMAGE.
  37  */
  38
  39 #include "opj_includes.h"
  40
  41 /** @defgroup PI PI - Implementation of a packet iterator */
  42 /*@{*/
  43
  44 /** @name Local static functions */
  45 /*@{*/
  46
  47 /**
  48 Get next packet in layer-resolution-component-precinct order.
  49 @param pi packet iterator to modify
  50 @return returns false if pi pointed to the last packet or else returns true
  51 */
  52 static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi);
  53 /**
  54 Get next packet in resolution-layer-component-precinct order.
  55 @param pi packet iterator to modify
  56 @return returns false if pi pointed to the last packet or else returns true
  57 */
  58 static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi);
  59 /**
  60 Get next packet in resolution-precinct-component-layer order.
  61 @param pi packet iterator to modify
  62 @return returns false if pi pointed to the last packet or else returns true
  63 */
  64 static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi);
  65 /**
  66 Get next packet in precinct-component-resolution-layer order.
  67 @param pi packet iterator to modify
  68 @return returns false if pi pointed to the last packet or else returns true
  69 */
  70 static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi);
  71 /**
  72 Get next packet in component-precinct-resolution-layer order.
  73 @param pi packet iterator to modify
  74 @return returns false if pi pointed to the last packet or else returns true
  75 */
  76 static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi);
  77
  78 /**
  79  * Updates the coding parameters if the encoding is used with Progression order changes and final (or cinema parameters are used).
  80  *
  81  * @param       p_cp            the coding parameters to modify
  82  * @param       p_tileno        the tile index being concerned.
  83  * @param       p_tx0           X0 parameter for the tile
  84  * @param       p_tx1           X1 parameter for the tile
  85  * @param       p_ty0           Y0 parameter for the tile
  86  * @param       p_ty1           Y1 parameter for the tile
  87  * @param       p_max_prec      the maximum precision for all the bands of the tile
  88  * @param       p_max_res       the maximum number of resolutions for all the poc inside the tile.
  89  * @param       p_dx_min                the minimum dx of all the components of all the resolutions for the tile.
  90  * @param       p_dy_min                the minimum dy of all the components of all the resolutions for the tile.
  91  */
  92 static void opj_pi_update_encode_poc_and_final ( opj_cp_t *p_cp,
  93                                                  OPJ_UINT32 p_tileno,
  94                                                  OPJ_INT32 p_tx0,
  95                                                  OPJ_INT32 p_tx1,
  96                                                  OPJ_INT32 p_ty0,
  97                                                  OPJ_INT32 p_ty1,
  98                                                  OPJ_UINT32 p_max_prec,
  99                                                  OPJ_UINT32 p_max_res,
 100                                                  OPJ_UINT32 p_dx_min,
 101                                                  OPJ_UINT32 p_dy_min);
 102
 103 /**
 104  * Updates the coding parameters if the encoding is not used with Progression order changes and final (and cinema parameters are used).
 105  *
 106  * @param       p_cp            the coding parameters to modify
 107  * @param       p_num_comps             the number of components
 108  * @param       p_tileno        the tile index being concerned.
 109  * @param       p_tx0           X0 parameter for the tile
 110  * @param       p_tx1           X1 parameter for the tile
 111  * @param       p_ty0           Y0 parameter for the tile
 112  * @param       p_ty1           Y1 parameter for the tile
 113  * @param       p_max_prec      the maximum precision for all the bands of the tile
 114  * @param       p_max_res       the maximum number of resolutions for all the poc inside the tile.
 115  * @param       p_dx_min                the minimum dx of all the components of all the resolutions for the tile.
 116  * @param       p_dy_min                the minimum dy of all the components of all the resolutions for the tile.
 117  */
 118 static void opj_pi_update_encode_not_poc (  opj_cp_t *p_cp,
 119                                             OPJ_UINT32 p_num_comps,
 120                                             OPJ_UINT32 p_tileno,
 121                                             OPJ_INT32 p_tx0,
 122                                             OPJ_INT32 p_tx1,
 123                                             OPJ_INT32 p_ty0,
 124                                             OPJ_INT32 p_ty1,
 125                                             OPJ_UINT32 p_max_prec,
 126                                             OPJ_UINT32 p_max_res,
 127                                             OPJ_UINT32 p_dx_min,
 128                                             OPJ_UINT32 p_dy_min);
 129 /**
 130  * Gets the encoding parameters needed to update the coding parameters and all the pocs.
 131  *
 132  * @param       p_image                 the image being encoded.
 133  * @param       p_cp                    the coding parameters.
 134  * @param       tileno                  the tile index of the tile being encoded.
 135  * @param       p_tx0                   pointer that will hold the X0 parameter for the tile
 136  * @param       p_tx1                   pointer that will hold the X1 parameter for the tile
 137  * @param       p_ty0                   pointer that will hold the Y0 parameter for the tile
 138  * @param       p_ty1                   pointer that will hold the Y1 parameter for the tile
 139  * @param       p_max_prec              pointer that will hold the maximum precision for all the bands of the tile
 140  * @param       p_max_res               pointer that will hold the maximum number of resolutions for all the poc inside the tile.
 141  * @param       p_dx_min                        pointer that will hold the minimum dx of all the components of all the resolutions for the tile.
 142  * @param       p_dy_min                        pointer that will hold the minimum dy of all the components of all the resolutions for the tile.
 143  */
 144 static void opj_get_encoding_parameters(const opj_image_t *p_image,
 145                                         const opj_cp_t *p_cp,
 146                                         OPJ_UINT32  tileno,
 147                                         OPJ_INT32  * p_tx0,
 148                                         OPJ_INT32 * p_tx1,
 149                                         OPJ_INT32 * p_ty0,
 150                                         OPJ_INT32 * p_ty1,
 151                                         OPJ_UINT32 * p_dx_min,
 152                                         OPJ_UINT32 * p_dy_min,
 153                                         OPJ_UINT32 * p_max_prec,
 154                                         OPJ_UINT32 * p_max_res );
 155
 156 /**
 157  * Gets the encoding parameters needed to update the coding parameters and all the pocs.
 158  * The precinct widths, heights, dx and dy for each component at each resolution will be stored as well.
 159  * the last parameter of the function should be an array of pointers of size nb components, each pointer leading
 160  * to an area of size 4 * max_res. The data is stored inside this area with the following pattern :
 161  * dx_compi_res0 , dy_compi_res0 , w_compi_res0, h_compi_res0 , dx_compi_res1 , dy_compi_res1 , w_compi_res1, h_compi_res1 , ...
 162  *
 163  * @param       p_image                 the image being encoded.
 164  * @param       p_cp                    the coding parameters.
 165  * @param       tileno                  the tile index of the tile being encoded.
 166  * @param       p_tx0                   pointer that will hold the X0 parameter for the tile
 167  * @param       p_tx1                   pointer that will hold the X1 parameter for the tile
 168  * @param       p_ty0                   pointer that will hold the Y0 parameter for the tile
 169  * @param       p_ty1                   pointer that will hold the Y1 parameter for the tile
 170  * @param       p_max_prec              pointer that will hold the maximum precision for all the bands of the tile
 171  * @param       p_max_res               pointer that will hold the maximum number of resolutions for all the poc inside the tile.
 172  * @param       p_dx_min                pointer that will hold the minimum dx of all the components of all the resolutions for the tile.
 173  * @param       p_dy_min                pointer that will hold the minimum dy of all the components of all the resolutions for the tile.
 174  * @param       p_resolutions   pointer to an area corresponding to the one described above.
 175  */
 176 static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
 177                                             const opj_cp_t *p_cp,
 178                                             OPJ_UINT32 tileno,
 179                                             OPJ_INT32 * p_tx0,
 180                                             OPJ_INT32 * p_tx1,
 181                                             OPJ_INT32 * p_ty0,
 182                                             OPJ_INT32 * p_ty1,
 183                                             OPJ_UINT32 * p_dx_min,
 184                                             OPJ_UINT32 * p_dy_min,
 185                                             OPJ_UINT32 * p_max_prec,
 186                                             OPJ_UINT32 * p_max_res,
 187                                             OPJ_UINT32 ** p_resolutions );
 188 /**
 189  * Allocates memory for a packet iterator. Data and data sizes are set by this operation.
 190  * No other data is set. The include section of the packet  iterator is not allocated.
 191  *
 192  * @param       p_image         the image used to initialize the packet iterator (in fact only the number of components is relevant.
 193  * @param       p_cp            the coding parameters.
 194  * @param       tileno  the index of the tile from which creating the packet iterator.
 195  */
 196 static opj_pi_iterator_t * opj_pi_create(       const opj_image_t *p_image,
 197                                             const opj_cp_t *p_cp,
 198                                             OPJ_UINT32 tileno );
 199 /**
 200  * FIXME DOC
 201  */
 202 static void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
 203                                           opj_tcp_t * p_tcp,
 204                                           OPJ_UINT32 p_max_precision,
 205                                           OPJ_UINT32 p_max_res);
 206 /**
 207  * FIXME DOC
 208  */
 209 static void opj_pi_update_decode_poc (  opj_pi_iterator_t * p_pi,
 210                                         opj_tcp_t * p_tcp,
 211                                         OPJ_UINT32 p_max_precision,
 212                                         OPJ_UINT32 p_max_res);
 213
 214 /**
 215  * FIXME DOC
 216  */
 217 static OPJ_BOOL opj_pi_check_next_level(        OPJ_INT32 pos,
 218                                                                 opj_cp_t *cp,
 219                                                                 OPJ_UINT32 tileno,
 220                                                                 OPJ_UINT32 pino,
 221                                                                 const OPJ_CHAR *prog);
 222
 223 /*@}*/
 224
 225 /*@}*/
 226
 227 /*
 228 ==========================================================
 229    local functions
 230 ==========================================================
 231 */
 232
 233 static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi) {
 234         opj_pi_comp_t *comp = NULL;
 235         opj_pi_resolution_t *res = NULL;
 236         OPJ_UINT32 index = 0;
 237
 238         if (!pi->first) {
 239                 comp = &pi->comps[pi->compno];
 240                 res = &comp->resolutions[pi->resno];
 241                 goto LABEL_SKIP;
 242         } else {
 243                 pi->first = 0;
 244         }
 245
 246         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 247                 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
 248                 pi->resno++) {
 249                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 250                                 comp = &pi->comps[pi->compno];
 251                                 if (pi->resno >= comp->numresolutions) {
 252                                         continue;
 253                                 }
 254                                 res = &comp->resolutions[pi->resno];
 255                                 if (!pi->tp_on){
 256                                         pi->poc.precno1 = res->pw * res->ph;
 257                                 }
 258                                 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
 259                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 260                                         if (!pi->include[index]) {
 261                                                 pi->include[index] = 1;
 262                                                 return OPJ_TRUE;
 263                                         }
 264 LABEL_SKIP:;
 265                                 }
 266                         }
 267                 }
 268         }
 269
 270         return OPJ_FALSE;
 271 }
 272
 273 static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi) {
 274         opj_pi_comp_t *comp = NULL;
 275         opj_pi_resolution_t *res = NULL;
 276         OPJ_UINT32 index = 0;
 277
 278         if (!pi->first) {
 279                 comp = &pi->comps[pi->compno];
 280                 res = &comp->resolutions[pi->resno];
 281                 goto LABEL_SKIP;
 282         } else {
 283                 pi->first = 0;
 284         }
 285
 286         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
 287                 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 288                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 289                                 comp = &pi->comps[pi->compno];
 290                                 if (pi->resno >= comp->numresolutions) {
 291                                         continue;
 292                                 }
 293                                 res = &comp->resolutions[pi->resno];
 294                                 if(!pi->tp_on){
 295                                         pi->poc.precno1 = res->pw * res->ph;
 296                                 }
 297                                 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
 298                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 299                                         if (!pi->include[index]) {
 300                                                 pi->include[index] = 1;
 301                                                 return OPJ_TRUE;
 302                                         }
 303 LABEL_SKIP:;
 304                                 }
 305                         }
 306                 }
 307         }
 308
 309         return OPJ_FALSE;
 310 }
 311
 312 static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi) {
 313         opj_pi_comp_t *comp = NULL;
 314         opj_pi_resolution_t *res = NULL;
 315         OPJ_UINT32 index = 0;
 316
 317         if (!pi->first) {
 318                 goto LABEL_SKIP;
 319         } else {
 320                 OPJ_UINT32 compno, resno;
 321                 pi->first = 0;
 322                 pi->dx = 0;
 323                 pi->dy = 0;
 324                 for (compno = 0; compno < pi->numcomps; compno++) {
 325                         comp = &pi->comps[compno];
 326                         for (resno = 0; resno < comp->numresolutions; resno++) {
 327                                 OPJ_UINT32 dx, dy;
 328                                 res = &comp->resolutions[resno];
 329                                 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
 330                                 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
 331                                 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
 332                                 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
 333                         }
 334                 }
 335         }
 336 if (!pi->tp_on){
 337                         pi->poc.ty0 = pi->ty0;
 338                         pi->poc.tx0 = pi->tx0;
 339                         pi->poc.ty1 = pi->ty1;
 340                         pi->poc.tx1 = pi->tx1;
 341                 }
 342         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
 343                 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
 344                         for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
 345                                 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 346                                         OPJ_UINT32 levelno;
 347                                         OPJ_INT32 trx0, try0;
 348                                         OPJ_INT32  trx1, try1;
 349                                         OPJ_UINT32  rpx, rpy;
 350                                         OPJ_INT32  prci, prcj;
 351                                         comp = &pi->comps[pi->compno];
 352                                         if (pi->resno >= comp->numresolutions) {
 353                                                 continue;
 354                                         }
 355                                         res = &comp->resolutions[pi->resno];
 356                                         levelno = comp->numresolutions - 1 - pi->resno;
 357                                         trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
 358                                         try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
 359                                         trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
 360                                         try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
 361                                         rpx = res->pdx + levelno;
 362                                         rpy = res->pdy + levelno;
 363                                         if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
 364                                                 continue;
 365                                         }
 366                                         if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
 367                                                 continue;
 368                                         }
 369
 370                                         if ((res->pw==0)||(res->ph==0)) continue;
 371
 372                                         if ((trx0==trx1)||(try0==try1)) continue;
 373
 374                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
 375                                                  - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
 376                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
 377                                                  - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
 378                                         pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
 379                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 380                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 381                                                 if (!pi->include[index]) {
 382                                                         pi->include[index] = 1;
 383                                                         return OPJ_TRUE;
 384                                                 }
 385 LABEL_SKIP:;
 386                                         }
 387                                 }
 388                         }
 389                 }
 390         }
 391
 392         return OPJ_FALSE;
 393 }
 394
 395 static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi) {
 396         opj_pi_comp_t *comp = NULL;
 397         opj_pi_resolution_t *res = NULL;
 398         OPJ_UINT32 index = 0;
 399
 400         if (!pi->first) {
 401                 comp = &pi->comps[pi->compno];
 402                 goto LABEL_SKIP;
 403         } else {
 404                 OPJ_UINT32 compno, resno;
 405                 pi->first = 0;
 406                 pi->dx = 0;
 407                 pi->dy = 0;
 408                 for (compno = 0; compno < pi->numcomps; compno++) {
 409                         comp = &pi->comps[compno];
 410                         for (resno = 0; resno < comp->numresolutions; resno++) {
 411                                 OPJ_UINT32 dx, dy;
 412                                 res = &comp->resolutions[resno];
 413                                 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
 414                                 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
 415                                 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
 416                                 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
 417                         }
 418                 }
 419         }
 420         if (!pi->tp_on){
 421                         pi->poc.ty0 = pi->ty0;
 422                         pi->poc.tx0 = pi->tx0;
 423                         pi->poc.ty1 = pi->ty1;
 424                         pi->poc.tx1 = pi->tx1;
 425                 }
 426         for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
 427                 for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
 428                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 429                                 comp = &pi->comps[pi->compno];
 430                                 for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
 431                                         OPJ_UINT32 levelno;
 432                                         OPJ_INT32 trx0, try0;
 433                                         OPJ_INT32 trx1, try1;
 434                                         OPJ_UINT32 rpx, rpy;
 435                                         OPJ_INT32 prci, prcj;
 436                                         res = &comp->resolutions[pi->resno];
 437                                         levelno = comp->numresolutions - 1 - pi->resno;
 438                                         trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
 439                                         try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
 440                                         trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
 441                                         try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
 442                                         rpx = res->pdx + levelno;
 443                                         rpy = res->pdy + levelno;
 444                                         if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
 445                                                 continue;
 446                                         }
 447                                         if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
 448                                                 continue;
 449                                         }
 450
 451                                         if ((res->pw==0)||(res->ph==0)) continue;
 452
 453                                         if ((trx0==trx1)||(try0==try1)) continue;
 454
 455                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
 456                                                  - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
 457                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
 458                                                  - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
 459                                         pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
 460                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 461                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 462                                                 if (!pi->include[index]) {
 463                                                         pi->include[index] = 1;
 464                                                         return OPJ_TRUE;
 465                                                 }
 466 LABEL_SKIP:;
 467                                         }
 468                                 }
 469                         }
 470                 }
 471         }
 472
 473         return OPJ_FALSE;
 474 }
 475
 476 static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi) {
 477         opj_pi_comp_t *comp = NULL;
 478         opj_pi_resolution_t *res = NULL;
 479         OPJ_UINT32 index = 0;
 480
 481         if (!pi->first) {
 482                 comp = &pi->comps[pi->compno];
 483                 goto LABEL_SKIP;
 484         } else {
 485                 pi->first = 0;
 486         }
 487
 488         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 489                 OPJ_UINT32 resno;
 490                 comp = &pi->comps[pi->compno];
 491                 pi->dx = 0;
 492                 pi->dy = 0;
 493                 for (resno = 0; resno < comp->numresolutions; resno++) {
 494                         OPJ_UINT32 dx, dy;
 495                         res = &comp->resolutions[resno];
 496                         dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
 497                         dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
 498                         pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
 499                         pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
 500                 }
 501                 if (!pi->tp_on){
 502                         pi->poc.ty0 = pi->ty0;
 503                         pi->poc.tx0 = pi->tx0;
 504                         pi->poc.ty1 = pi->ty1;
 505                         pi->poc.tx1 = pi->tx1;
 506                 }
 507                 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
 508                         for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
 509                                 for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
 510                                         OPJ_UINT32 levelno;
 511                                         OPJ_INT32 trx0, try0;
 512                                         OPJ_INT32 trx1, try1;
 513                                         OPJ_UINT32 rpx, rpy;
 514                                         OPJ_INT32 prci, prcj;
 515                                         res = &comp->resolutions[pi->resno];
 516                                         levelno = comp->numresolutions - 1 - pi->resno;
 517                                         trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
 518                                         try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
 519                                         trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
 520                                         try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
 521                                         rpx = res->pdx + levelno;
 522                                         rpy = res->pdy + levelno;
 523                                         if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
 524                                                 continue;
 525                                         }
 526                                         if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
 527                                                 continue;
 528                                         }
 529
 530                                         if ((res->pw==0)||(res->ph==0)) continue;
 531
 532                                         if ((trx0==trx1)||(try0==try1)) continue;
 533
 534                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
 535                                                  - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
 536                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
 537                                                  - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
 538                                         pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
 539                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 540                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 541                                                 if (!pi->include[index]) {
 542                                                         pi->include[index] = 1;
 543                                                         return OPJ_TRUE;
 544                                                 }
 545 LABEL_SKIP:;
 546                                         }
 547                                 }
 548                         }
 549                 }
 550         }
 551
 552         return OPJ_FALSE;
 553 }
 554
 555 static void opj_get_encoding_parameters(        const opj_image_t *p_image,
 556                                     const opj_cp_t *p_cp,
 557                                     OPJ_UINT32 p_tileno,
 558                                     OPJ_INT32 * p_tx0,
 559                                     OPJ_INT32  * p_tx1,
 560                                     OPJ_INT32  * p_ty0,
 561                                     OPJ_INT32  * p_ty1,
 562                                     OPJ_UINT32 * p_dx_min,
 563                                     OPJ_UINT32 * p_dy_min,
 564                                     OPJ_UINT32 * p_max_prec,
 565                                     OPJ_UINT32 * p_max_res )
 566 {
 567         /* loop */
 568         OPJ_UINT32  compno, resno;
 569         /* pointers */
 570         const opj_tcp_t *l_tcp = 00;
 571         const opj_tccp_t * l_tccp = 00;
 572         const opj_image_comp_t * l_img_comp = 00;
 573
 574         /* position in x and y of tile */
 575         OPJ_UINT32 p, q;
 576
 577         /* preconditions */
 578         assert(p_cp != 00);
 579         assert(p_image != 00);
 580         assert(p_tileno < p_cp->tw * p_cp->th);
 581
 582         /* initializations */
 583         l_tcp = &p_cp->tcps [p_tileno];
 584         l_img_comp = p_image->comps;
 585         l_tccp = l_tcp->tccps;
 586
 587         /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
 588         p = p_tileno % p_cp->tw;
 589         q = p_tileno / p_cp->tw;
 590
 591         /* find extent of tile */
 592         *p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
 593         *p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
 594         *p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
 595         *p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)p_image->y1);
 596
 597         /* max precision is 0 (can only grow) */
 598         *p_max_prec = 0;
 599         *p_max_res = 0;
 600
 601         /* take the largest value for dx_min and dy_min */
 602         *p_dx_min = 0x7fffffff;
 603         *p_dy_min  = 0x7fffffff;
 604
 605         for (compno = 0; compno < p_image->numcomps; ++compno) {
 606                 /* arithmetic variables to calculate */
 607                 OPJ_UINT32 l_level_no;
 608                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
 609                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
 610                 OPJ_UINT32 l_pdx, l_pdy;
 611                 OPJ_UINT32 l_pw, l_ph;
 612                 OPJ_UINT32 l_product;
 613                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
 614
 615                 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
 616                 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
 617                 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
 618                 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
 619
 620                 if (l_tccp->numresolutions > *p_max_res) {
 621                         *p_max_res = l_tccp->numresolutions;
 622                 }
 623
 624                 /* use custom size for precincts */
 625                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
 626                         OPJ_UINT32 l_dx, l_dy;
 627
 628                         /* precinct width and height */
 629                         l_pdx = l_tccp->prcw[resno];
 630                         l_pdy = l_tccp->prch[resno];
 631
 632                         l_dx = l_img_comp->dx * (1u << (l_pdx + l_tccp->numresolutions - 1 - resno));
 633                         l_dy = l_img_comp->dy * (1u << (l_pdy + l_tccp->numresolutions - 1 - resno));
 634
 635                         /* take the minimum size for dx for each comp and resolution */
 636                         *p_dx_min = opj_uint_min(*p_dx_min, l_dx);
 637                         *p_dy_min = opj_uint_min(*p_dy_min, l_dy);
 638
 639                         /* various calculations of extents */
 640                         l_level_no = l_tccp->numresolutions - 1 - resno;
 641
 642                         l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
 643                         l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
 644                         l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
 645                         l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
 646
 647                         l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
 648                         l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
 649                         l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
 650
 651                         py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
 652
 653                         l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
 654                         l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
 655
 656                         l_product = l_pw * l_ph;
 657
 658                         /* update precision */
 659                         if (l_product > *p_max_prec) {
 660                                 *p_max_prec = l_product;
 661                         }
 662                 }
 663                 ++l_img_comp;
 664                 ++l_tccp;
 665         }
 666 }
 667
 668
 669 static void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
 670                                         const opj_cp_t *p_cp,
 671                                         OPJ_UINT32 tileno,
 672                                         OPJ_INT32 * p_tx0,
 673                                         OPJ_INT32 * p_tx1,
 674                                         OPJ_INT32 * p_ty0,
 675                                         OPJ_INT32 * p_ty1,
 676                                         OPJ_UINT32 * p_dx_min,
 677                                         OPJ_UINT32 * p_dy_min,
 678                                         OPJ_UINT32 * p_max_prec,
 679                                         OPJ_UINT32 * p_max_res,
 680                                         OPJ_UINT32 ** p_resolutions )
 681 {
 682         /* loop*/
 683         OPJ_UINT32 compno, resno;
 684
 685         /* pointers*/
 686         const opj_tcp_t *tcp = 00;
 687         const opj_tccp_t * l_tccp = 00;
 688         const opj_image_comp_t * l_img_comp = 00;
 689
 690         /* to store l_dx, l_dy, w and h for each resolution and component.*/
 691         OPJ_UINT32 * lResolutionPtr;
 692
 693         /* position in x and y of tile*/
 694         OPJ_UINT32 p, q;
 695
 696         /* non-corrected (in regard to image offset) tile offset */
 697         OPJ_UINT32 l_tx0, l_ty0;
 698
 699         /* preconditions in debug*/
 700         assert(p_cp != 00);
 701         assert(p_image != 00);
 702         assert(tileno < p_cp->tw * p_cp->th);
 703
 704         /* initializations*/
 705         tcp = &p_cp->tcps [tileno];
 706         l_tccp = tcp->tccps;
 707         l_img_comp = p_image->comps;
 708
 709         /* position in x and y of tile*/
 710         p = tileno % p_cp->tw;
 711         q = tileno / p_cp->tw;
 712
 713         /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
 714         l_tx0 = p_cp->tx0 + p * p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
 715         *p_tx0 = (OPJ_INT32)opj_uint_max(l_tx0, p_image->x0);
 716         *p_tx1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
 717         l_ty0 = p_cp->ty0 + q * p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
 718         *p_ty0 = (OPJ_INT32)opj_uint_max(l_ty0, p_image->y0);
 719         *p_ty1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_ty0, p_cp->tdy), p_image->y1);
 720
 721         /* max precision and resolution is 0 (can only grow)*/
 722         *p_max_prec = 0;
 723         *p_max_res = 0;
 724
 725         /* take the largest value for dx_min and dy_min*/
 726         *p_dx_min = 0x7fffffff;
 727         *p_dy_min = 0x7fffffff;
 728
 729         for (compno = 0; compno < p_image->numcomps; ++compno) {
 730                 /* aritmetic variables to calculate*/
 731                 OPJ_UINT32 l_level_no;
 732                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
 733                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
 734                 OPJ_UINT32 l_product;
 735                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
 736                 OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
 737
 738                 lResolutionPtr = p_resolutions[compno];
 739
 740                 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
 741                 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
 742                 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
 743                 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
 744
 745                 if (l_tccp->numresolutions > *p_max_res) {
 746                         *p_max_res = l_tccp->numresolutions;
 747                 }
 748
 749                 /* use custom size for precincts*/
 750                 l_level_no = l_tccp->numresolutions;
 751                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
 752                         OPJ_UINT32 l_dx, l_dy;
 753
 754                         --l_level_no;
 755
 756                         /* precinct width and height*/
 757                         l_pdx = l_tccp->prcw[resno];
 758                         l_pdy = l_tccp->prch[resno];
 759                         *lResolutionPtr++ = l_pdx;
 760                         *lResolutionPtr++ = l_pdy;
 761                         l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
 762                         l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
 763                         /* take the minimum size for l_dx for each comp and resolution*/
 764                         *p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dx_min, (OPJ_INT32)l_dx);
 765                         *p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dy_min, (OPJ_INT32)l_dy);
 766
 767                         /* various calculations of extents*/
 768                         l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
 769                         l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
 770                         l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
 771                         l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
 772                         l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
 773                         l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
 774                         l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
 775                         py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
 776                         l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
 777                         l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
 778                         *lResolutionPtr++ = l_pw;
 779                         *lResolutionPtr++ = l_ph;
 780                         l_product = l_pw * l_ph;
 781
 782             /* update precision*/
 783                         if (l_product > *p_max_prec) {
 784                                 *p_max_prec = l_product;
 785                         }
 786
 787                 }
 788                 ++l_tccp;
 789                 ++l_img_comp;
 790         }
 791 }
 792
 793 static opj_pi_iterator_t * opj_pi_create(       const opj_image_t *image,
 794                                     const opj_cp_t *cp,
 795                                     OPJ_UINT32 tileno )
 796 {
 797         /* loop*/
 798         OPJ_UINT32 pino, compno;
 799         /* number of poc in the p_pi*/
 800         OPJ_UINT32 l_poc_bound;
 801
 802         /* pointers to tile coding parameters and components.*/
 803         opj_pi_iterator_t *l_pi = 00;
 804         opj_tcp_t *tcp = 00;
 805         const opj_tccp_t *tccp = 00;
 806
 807         /* current packet iterator being allocated*/
 808         opj_pi_iterator_t *l_current_pi = 00;
 809
 810         /* preconditions in debug*/
 811         assert(cp != 00);
 812         assert(image != 00);
 813         assert(tileno < cp->tw * cp->th);
 814
 815         /* initializations*/
 816         tcp = &cp->tcps[tileno];
 817         l_poc_bound = tcp->numpocs+1;
 818
 819         /* memory allocations*/
 820         l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
 821         if (!l_pi) {
 822                 return NULL;
 823         }
 824
 825         l_current_pi = l_pi;
 826         for (pino = 0; pino < l_poc_bound ; ++pino) {
 827
 828                 l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
 829                 if (! l_current_pi->comps) {
 830                         opj_pi_destroy(l_pi, l_poc_bound);
 831                         return NULL;
 832                 }
 833
 834                 l_current_pi->numcomps = image->numcomps;
 835
 836                 for (compno = 0; compno < image->numcomps; ++compno) {
 837                         opj_pi_comp_t *comp = &l_current_pi->comps[compno];
 838
 839                         tccp = &tcp->tccps[compno];
 840
 841                         comp->resolutions = (opj_pi_resolution_t*) opj_calloc(tccp->numresolutions, sizeof(opj_pi_resolution_t));
 842                         if (!comp->resolutions) {
 843                                 opj_pi_destroy(l_pi, l_poc_bound);
 844                                 return 00;
 845                         }
 846
 847                         comp->numresolutions = tccp->numresolutions;
 848                 }
 849                 ++l_current_pi;
 850         }
 851         return l_pi;
 852 }
 853
 854 static void opj_pi_update_encode_poc_and_final (   opj_cp_t *p_cp,
 855                                             OPJ_UINT32 p_tileno,
 856                                             OPJ_INT32 p_tx0,
 857                                             OPJ_INT32 p_tx1,
 858                                             OPJ_INT32 p_ty0,
 859                                             OPJ_INT32 p_ty1,
 860                                             OPJ_UINT32 p_max_prec,
 861                                             OPJ_UINT32 p_max_res,
 862                                             OPJ_UINT32 p_dx_min,
 863                                             OPJ_UINT32 p_dy_min)
 864 {
 865         /* loop*/
 866         OPJ_UINT32 pino;
 867         /* tile coding parameter*/
 868         opj_tcp_t *l_tcp = 00;
 869         /* current poc being updated*/
 870         opj_poc_t * l_current_poc = 00;
 871
 872         /* number of pocs*/
 873         OPJ_UINT32 l_poc_bound;
 874
 875     OPJ_ARG_NOT_USED(p_max_res);
 876
 877         /* preconditions in debug*/
 878         assert(p_cp != 00);
 879         assert(p_tileno < p_cp->tw * p_cp->th);
 880
 881         /* initializations*/
 882         l_tcp = &p_cp->tcps [p_tileno];
 883         /* number of iterations in the loop */
 884         l_poc_bound = l_tcp->numpocs+1;
 885
 886         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
 887            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
 888         l_current_poc = l_tcp->pocs;
 889
 890         l_current_poc->compS = l_current_poc->compno0;
 891         l_current_poc->compE = l_current_poc->compno1;
 892         l_current_poc->resS = l_current_poc->resno0;
 893         l_current_poc->resE = l_current_poc->resno1;
 894         l_current_poc->layE = l_current_poc->layno1;
 895
 896         /* special treatment for the first element*/
 897         l_current_poc->layS = 0;
 898         l_current_poc->prg  = l_current_poc->prg1;
 899         l_current_poc->prcS = 0;
 900
 901         l_current_poc->prcE = p_max_prec;
 902         l_current_poc->txS = (OPJ_UINT32)p_tx0;
 903         l_current_poc->txE = (OPJ_UINT32)p_tx1;
 904         l_current_poc->tyS = (OPJ_UINT32)p_ty0;
 905         l_current_poc->tyE = (OPJ_UINT32)p_ty1;
 906         l_current_poc->dx = p_dx_min;
 907         l_current_poc->dy = p_dy_min;
 908
 909         ++ l_current_poc;
 910         for (pino = 1;pino < l_poc_bound ; ++pino) {
 911                 l_current_poc->compS = l_current_poc->compno0;
 912                 l_current_poc->compE= l_current_poc->compno1;
 913                 l_current_poc->resS = l_current_poc->resno0;
 914                 l_current_poc->resE = l_current_poc->resno1;
 915                 l_current_poc->layE = l_current_poc->layno1;
 916                 l_current_poc->prg  = l_current_poc->prg1;
 917                 l_current_poc->prcS = 0;
 918                 /* special treatment here different from the first element*/
 919                 l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
 920
 921                 l_current_poc->prcE = p_max_prec;
 922                 l_current_poc->txS = (OPJ_UINT32)p_tx0;
 923                 l_current_poc->txE = (OPJ_UINT32)p_tx1;
 924                 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
 925                 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
 926                 l_current_poc->dx = p_dx_min;
 927                 l_current_poc->dy = p_dy_min;
 928                 ++ l_current_poc;
 929         }
 930 }
 931
 932 static void opj_pi_update_encode_not_poc (      opj_cp_t *p_cp,
 933                                     OPJ_UINT32 p_num_comps,
 934                                     OPJ_UINT32 p_tileno,
 935                                     OPJ_INT32 p_tx0,
 936                                     OPJ_INT32 p_tx1,
 937                                     OPJ_INT32 p_ty0,
 938                                     OPJ_INT32 p_ty1,
 939                                     OPJ_UINT32 p_max_prec,
 940                                     OPJ_UINT32 p_max_res,
 941                                     OPJ_UINT32 p_dx_min,
 942                                     OPJ_UINT32 p_dy_min)
 943 {
 944         /* loop*/
 945         OPJ_UINT32 pino;
 946         /* tile coding parameter*/
 947         opj_tcp_t *l_tcp = 00;
 948         /* current poc being updated*/
 949         opj_poc_t * l_current_poc = 00;
 950         /* number of pocs*/
 951         OPJ_UINT32 l_poc_bound;
 952
 953         /* preconditions in debug*/
 954         assert(p_cp != 00);
 955         assert(p_tileno < p_cp->tw * p_cp->th);
 956
 957         /* initializations*/
 958         l_tcp = &p_cp->tcps [p_tileno];
 959
 960         /* number of iterations in the loop */
 961         l_poc_bound = l_tcp->numpocs+1;
 962
 963         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
 964            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
 965         l_current_poc = l_tcp->pocs;
 966
 967         for (pino = 0; pino < l_poc_bound ; ++pino) {
 968                 l_current_poc->compS = 0;
 969                 l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
 970                 l_current_poc->resS = 0;
 971                 l_current_poc->resE = p_max_res;
 972                 l_current_poc->layS = 0;
 973                 l_current_poc->layE = l_tcp->numlayers;
 974                 l_current_poc->prg  = l_tcp->prg;
 975                 l_current_poc->prcS = 0;
 976                 l_current_poc->prcE = p_max_prec;
 977                 l_current_poc->txS = (OPJ_UINT32)p_tx0;
 978                 l_current_poc->txE = (OPJ_UINT32)p_tx1;
 979                 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
 980                 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
 981                 l_current_poc->dx = p_dx_min;
 982                 l_current_poc->dy = p_dy_min;
 983                 ++ l_current_poc;
 984         }
 985 }
 986
 987 static void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
 988                                opj_tcp_t * p_tcp,
 989                                OPJ_UINT32 p_max_precision,
 990                                OPJ_UINT32 p_max_res)
 991 {
 992         /* loop*/
 993         OPJ_UINT32 pino;
 994
 995         /* encoding prameters to set*/
 996         OPJ_UINT32 l_bound;
 997
 998         opj_pi_iterator_t * l_current_pi = 00;
 999         opj_poc_t* l_current_poc = 0;
1000
1001     OPJ_ARG_NOT_USED(p_max_res);
1002
1003         /* preconditions in debug*/
1004         assert(p_pi != 00);
1005         assert(p_tcp != 00);
1006
1007         /* initializations*/
1008         l_bound = p_tcp->numpocs+1;
1009         l_current_pi = p_pi;
1010         l_current_poc = p_tcp->pocs;
1011
1012         for     (pino = 0;pino<l_bound;++pino) {
1013                 l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
1014                 l_current_pi->first = 1;
1015
1016                 l_current_pi->poc.resno0 = l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
1017                 l_current_pi->poc.compno0 = l_current_poc->compno0; /* Component Index #0 (Start) */
1018                 l_current_pi->poc.layno0 = 0;
1019                 l_current_pi->poc.precno0 = 0;
1020                 l_current_pi->poc.resno1 = l_current_poc->resno1; /* Resolution Level Index #0 (End) */
1021                 l_current_pi->poc.compno1 = l_current_poc->compno1; /* Component Index #0 (End) */
1022                 l_current_pi->poc.layno1 = l_current_poc->layno1; /* Layer Index #0 (End) */
1023                 l_current_pi->poc.precno1 = p_max_precision;
1024                 ++l_current_pi;
1025                 ++l_current_poc;
1026         }
1027 }
1028
1029 static void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
1030                                    opj_tcp_t * p_tcp,
1031                                    OPJ_UINT32 p_max_precision,
1032                                    OPJ_UINT32 p_max_res)
1033 {
1034         /* loop*/
1035         OPJ_UINT32 pino;
1036
1037         /* encoding prameters to set*/
1038         OPJ_UINT32 l_bound;
1039
1040         opj_pi_iterator_t * l_current_pi = 00;
1041         /* preconditions in debug*/
1042         assert(p_tcp != 00);
1043         assert(p_pi != 00);
1044
1045         /* initializations*/
1046         l_bound = p_tcp->numpocs+1;
1047         l_current_pi = p_pi;
1048
1049         for (pino = 0;pino<l_bound;++pino) {
1050                 l_current_pi->poc.prg = p_tcp->prg;
1051                 l_current_pi->first = 1;
1052                 l_current_pi->poc.resno0 = 0;
1053                 l_current_pi->poc.compno0 = 0;
1054                 l_current_pi->poc.layno0 = 0;
1055                 l_current_pi->poc.precno0 = 0;
1056                 l_current_pi->poc.resno1 = p_max_res;
1057                 l_current_pi->poc.compno1 = l_current_pi->numcomps;
1058                 l_current_pi->poc.layno1 = p_tcp->numlayers;
1059                 l_current_pi->poc.precno1 = p_max_precision;
1060                 ++l_current_pi;
1061         }
1062 }
1063
1064
1065
1066 static OPJ_BOOL opj_pi_check_next_level(        OPJ_INT32 pos,
1067                                                                 opj_cp_t *cp,
1068                                                                 OPJ_UINT32 tileno,
1069                                                                 OPJ_UINT32 pino,
1070                                                                 const OPJ_CHAR *prog)
1071 {
1072         OPJ_INT32 i;
1073         opj_tcp_t *tcps =&cp->tcps[tileno];
1074         opj_poc_t *tcp = &tcps->pocs[pino];
1075
1076         if(pos>=0){
1077                 for(i=pos;pos>=0;i--){
1078                         switch(prog[i]){
1079                     case 'R':
1080                             if(tcp->res_t==tcp->resE){
1081                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1082                                             return OPJ_TRUE;
1083                                     }else{
1084                                             return OPJ_FALSE;
1085                                     }
1086                             }else{
1087                                     return OPJ_TRUE;
1088                             }
1089                             break;
1090                     case 'C':
1091                             if(tcp->comp_t==tcp->compE){
1092                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1093                                             return OPJ_TRUE;
1094                                     }else{
1095                                             return OPJ_FALSE;
1096                                     }
1097                             }else{
1098                                     return OPJ_TRUE;
1099                             }
1100                             break;
1101                     case 'L':
1102                             if(tcp->lay_t==tcp->layE){
1103                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1104                                             return OPJ_TRUE;
1105                                     }else{
1106                                             return OPJ_FALSE;
1107                                     }
1108                             }else{
1109                                     return OPJ_TRUE;
1110                             }
1111                             break;
1112                     case 'P':
1113                             switch(tcp->prg){
1114                     case OPJ_LRCP: /* fall through */
1115                     case OPJ_RLCP:
1116                                             if(tcp->prc_t == tcp->prcE){
1117                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1118                                                             return OPJ_TRUE;
1119                                                     }else{
1120                                                             return OPJ_FALSE;
1121                                                     }
1122                                             }else{
1123                                                     return OPJ_TRUE;
1124                                             }
1125                                             break;
1126                             default:
1127                                     if(tcp->tx0_t == tcp->txE){
1128                                             /*TY*/
1129                                             if(tcp->ty0_t == tcp->tyE){
1130                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1131                                                             return OPJ_TRUE;
1132                                                     }else{
1133                                                             return OPJ_FALSE;
1134                                                     }
1135                                             }else{
1136                                                     return OPJ_TRUE;
1137                                             }/*TY*/
1138                                     }else{
1139                                             return OPJ_TRUE;
1140                                     }
1141                                     break;
1142                             }/*end case P*/
1143                     }/*end switch*/
1144                 }/*end for*/
1145         }/*end if*/
1146         return OPJ_FALSE;
1147 }
1148
1149
1150 /*
1151 ==========================================================
1152    Packet iterator interface
1153 ==========================================================
1154 */
1155 opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1156                                                                                 opj_cp_t *p_cp,
1157                                                                                 OPJ_UINT32 p_tile_no)
1158 {
1159         /* loop */
1160         OPJ_UINT32 pino;
1161         OPJ_UINT32 compno, resno;
1162
1163         /* to store w, h, dx and dy fro all components and resolutions */
1164         OPJ_UINT32 * l_tmp_data;
1165         OPJ_UINT32 ** l_tmp_ptr;
1166
1167         /* encoding prameters to set */
1168         OPJ_UINT32 l_max_res;
1169         OPJ_UINT32 l_max_prec;
1170         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1171         OPJ_UINT32 l_dx_min,l_dy_min;
1172         OPJ_UINT32 l_bound;
1173         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1174         OPJ_UINT32 l_data_stride;
1175
1176         /* pointers */
1177         opj_pi_iterator_t *l_pi = 00;
1178         opj_tcp_t *l_tcp = 00;
1179         const opj_tccp_t *l_tccp = 00;
1180         opj_pi_comp_t *l_current_comp = 00;
1181         opj_image_comp_t * l_img_comp = 00;
1182         opj_pi_iterator_t * l_current_pi = 00;
1183         OPJ_UINT32 * l_encoding_value_ptr = 00;
1184
1185         /* preconditions in debug */
1186         assert(p_cp != 00);
1187         assert(p_image != 00);
1188         assert(p_tile_no < p_cp->tw * p_cp->th);
1189
1190         /* initializations */
1191         l_tcp = &p_cp->tcps[p_tile_no];
1192         l_bound = l_tcp->numpocs+1;
1193
1194         l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1195         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1196                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1197         if
1198                 (! l_tmp_data)
1199         {
1200                 return 00;
1201         }
1202         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1203                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1204         if
1205                 (! l_tmp_ptr)
1206         {
1207                 opj_free(l_tmp_data);
1208                 return 00;
1209         }
1210
1211         /* memory allocation for pi */
1212         l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1213         if (!l_pi) {
1214                 opj_free(l_tmp_data);
1215                 opj_free(l_tmp_ptr);
1216                 return 00;
1217         }
1218
1219         l_encoding_value_ptr = l_tmp_data;
1220         /* update pointer array */
1221         for
1222                 (compno = 0; compno < p_image->numcomps; ++compno)
1223         {
1224                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1225                 l_encoding_value_ptr += l_data_stride;
1226         }
1227         /* get encoding parameters */
1228         opj_get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
1229
1230         /* step calculations */
1231         l_step_p = 1;
1232         l_step_c = l_max_prec * l_step_p;
1233         l_step_r = p_image->numcomps * l_step_c;
1234         l_step_l = l_max_res * l_step_r;
1235
1236         /* set values for first packet iterator */
1237         l_current_pi = l_pi;
1238
1239         /* memory allocation for include */
1240         /* prevent an integer overflow issue */
1241         l_current_pi->include = 00;
1242         if (l_step_l <= (SIZE_MAX / (l_tcp->numlayers + 1U)))
1243         {
1244                 l_current_pi->include = (OPJ_INT16*) opj_calloc((size_t)(l_tcp->numlayers + 1U) * l_step_l, sizeof(OPJ_INT16));
1245         }
1246
1247         if
1248                 (!l_current_pi->include)
1249         {
1250                 opj_free(l_tmp_data);
1251                 opj_free(l_tmp_ptr);
1252                 opj_pi_destroy(l_pi, l_bound);
1253                 return 00;
1254         }
1255
1256         /* special treatment for the first packet iterator */
1257         l_current_comp = l_current_pi->comps;
1258         l_img_comp = p_image->comps;
1259         l_tccp = l_tcp->tccps;
1260
1261         l_current_pi->tx0 = l_tx0;
1262         l_current_pi->ty0 = l_ty0;
1263         l_current_pi->tx1 = l_tx1;
1264         l_current_pi->ty1 = l_ty1;
1265
1266         /*l_current_pi->dx = l_img_comp->dx;*/
1267         /*l_current_pi->dy = l_img_comp->dy;*/
1268
1269         l_current_pi->step_p = l_step_p;
1270         l_current_pi->step_c = l_step_c;
1271         l_current_pi->step_r = l_step_r;
1272         l_current_pi->step_l = l_step_l;
1273
1274         /* allocation for components and number of components has already been calculated by opj_pi_create */
1275         for
1276                 (compno = 0; compno < l_current_pi->numcomps; ++compno)
1277         {
1278                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1279                 l_encoding_value_ptr = l_tmp_ptr[compno];
1280
1281                 l_current_comp->dx = l_img_comp->dx;
1282                 l_current_comp->dy = l_img_comp->dy;
1283                 /* resolutions have already been initialized */
1284                 for
1285                         (resno = 0; resno < l_current_comp->numresolutions; resno++)
1286                 {
1287                         l_res->pdx = *(l_encoding_value_ptr++);
1288                         l_res->pdy = *(l_encoding_value_ptr++);
1289                         l_res->pw =  *(l_encoding_value_ptr++);
1290                         l_res->ph =  *(l_encoding_value_ptr++);
1291                         ++l_res;
1292                 }
1293                 ++l_current_comp;
1294                 ++l_img_comp;
1295                 ++l_tccp;
1296         }
1297         ++l_current_pi;
1298
1299         for (pino = 1 ; pino<l_bound ; ++pino )
1300         {
1301                 l_current_comp = l_current_pi->comps;
1302                 l_img_comp = p_image->comps;
1303                 l_tccp = l_tcp->tccps;
1304
1305                 l_current_pi->tx0 = l_tx0;
1306                 l_current_pi->ty0 = l_ty0;
1307                 l_current_pi->tx1 = l_tx1;
1308                 l_current_pi->ty1 = l_ty1;
1309                 /*l_current_pi->dx = l_dx_min;*/
1310                 /*l_current_pi->dy = l_dy_min;*/
1311                 l_current_pi->step_p = l_step_p;
1312                 l_current_pi->step_c = l_step_c;
1313                 l_current_pi->step_r = l_step_r;
1314                 l_current_pi->step_l = l_step_l;
1315
1316                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1317                 for
1318                         (compno = 0; compno < l_current_pi->numcomps; ++compno)
1319                 {
1320                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1321                         l_encoding_value_ptr = l_tmp_ptr[compno];
1322
1323                         l_current_comp->dx = l_img_comp->dx;
1324                         l_current_comp->dy = l_img_comp->dy;
1325                         /* resolutions have already been initialized */
1326                         for
1327                                 (resno = 0; resno < l_current_comp->numresolutions; resno++)
1328                         {
1329                                 l_res->pdx = *(l_encoding_value_ptr++);
1330                                 l_res->pdy = *(l_encoding_value_ptr++);
1331                                 l_res->pw =  *(l_encoding_value_ptr++);
1332                                 l_res->ph =  *(l_encoding_value_ptr++);
1333                                 ++l_res;
1334                         }
1335                         ++l_current_comp;
1336                         ++l_img_comp;
1337                         ++l_tccp;
1338                 }
1339                 /* special treatment*/
1340                 l_current_pi->include = (l_current_pi-1)->include;
1341                 ++l_current_pi;
1342         }
1343         opj_free(l_tmp_data);
1344         l_tmp_data = 00;
1345         opj_free(l_tmp_ptr);
1346         l_tmp_ptr = 00;
1347         if
1348                 (l_tcp->POC)
1349         {
1350                 opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
1351         }
1352         else
1353         {
1354                 opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
1355         }
1356         return l_pi;
1357 }
1358
1359
1360
1361 opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1362                                             opj_cp_t *p_cp,
1363                                             OPJ_UINT32 p_tile_no,
1364                                             J2K_T2_MODE p_t2_mode )
1365 {
1366         /* loop*/
1367         OPJ_UINT32 pino;
1368         OPJ_UINT32 compno, resno;
1369
1370         /* to store w, h, dx and dy fro all components and resolutions*/
1371         OPJ_UINT32 * l_tmp_data;
1372         OPJ_UINT32 ** l_tmp_ptr;
1373
1374         /* encoding prameters to set*/
1375         OPJ_UINT32 l_max_res;
1376         OPJ_UINT32 l_max_prec;
1377         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1378         OPJ_UINT32 l_dx_min,l_dy_min;
1379         OPJ_UINT32 l_bound;
1380         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1381         OPJ_UINT32 l_data_stride;
1382
1383         /* pointers*/
1384         opj_pi_iterator_t *l_pi = 00;
1385         opj_tcp_t *l_tcp = 00;
1386         const opj_tccp_t *l_tccp = 00;
1387         opj_pi_comp_t *l_current_comp = 00;
1388         opj_image_comp_t * l_img_comp = 00;
1389         opj_pi_iterator_t * l_current_pi = 00;
1390         OPJ_UINT32 * l_encoding_value_ptr = 00;
1391
1392         /* preconditions in debug*/
1393         assert(p_cp != 00);
1394         assert(p_image != 00);
1395         assert(p_tile_no < p_cp->tw * p_cp->th);
1396
1397         /* initializations*/
1398         l_tcp = &p_cp->tcps[p_tile_no];
1399         l_bound = l_tcp->numpocs+1;
1400
1401         l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1402         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1403                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1404         if (! l_tmp_data) {
1405                 return 00;
1406         }
1407
1408         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1409                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1410         if (! l_tmp_ptr) {
1411                 opj_free(l_tmp_data);
1412                 return 00;
1413         }
1414
1415         /* memory allocation for pi*/
1416         l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
1417         if (!l_pi) {
1418                 opj_free(l_tmp_data);
1419                 opj_free(l_tmp_ptr);
1420                 return 00;
1421         }
1422
1423         l_encoding_value_ptr = l_tmp_data;
1424         /* update pointer array*/
1425         for (compno = 0; compno < p_image->numcomps; ++compno) {
1426                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1427                 l_encoding_value_ptr += l_data_stride;
1428         }
1429
1430         /* get encoding parameters*/
1431         opj_get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
1432
1433         /* step calculations*/
1434         l_step_p = 1;
1435         l_step_c = l_max_prec * l_step_p;
1436         l_step_r = p_image->numcomps * l_step_c;
1437         l_step_l = l_max_res * l_step_r;
1438
1439         /* set values for first packet iterator*/
1440         l_pi->tp_on = (OPJ_BYTE)p_cp->m_specific_param.m_enc.m_tp_on;
1441         l_current_pi = l_pi;
1442
1443         /* memory allocation for include*/
1444         l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
1445         if (!l_current_pi->include) {
1446                 opj_free(l_tmp_data);
1447                 opj_free(l_tmp_ptr);
1448                 opj_pi_destroy(l_pi, l_bound);
1449                 return 00;
1450         }
1451
1452         /* special treatment for the first packet iterator*/
1453         l_current_comp = l_current_pi->comps;
1454         l_img_comp = p_image->comps;
1455         l_tccp = l_tcp->tccps;
1456         l_current_pi->tx0 = l_tx0;
1457         l_current_pi->ty0 = l_ty0;
1458         l_current_pi->tx1 = l_tx1;
1459         l_current_pi->ty1 = l_ty1;
1460         l_current_pi->dx = l_dx_min;
1461         l_current_pi->dy = l_dy_min;
1462         l_current_pi->step_p = l_step_p;
1463         l_current_pi->step_c = l_step_c;
1464         l_current_pi->step_r = l_step_r;
1465         l_current_pi->step_l = l_step_l;
1466
1467         /* allocation for components and number of components has already been calculated by opj_pi_create */
1468         for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1469                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1470                 l_encoding_value_ptr = l_tmp_ptr[compno];
1471
1472                 l_current_comp->dx = l_img_comp->dx;
1473                 l_current_comp->dy = l_img_comp->dy;
1474
1475                 /* resolutions have already been initialized */
1476                 for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1477                         l_res->pdx = *(l_encoding_value_ptr++);
1478                         l_res->pdy = *(l_encoding_value_ptr++);
1479                         l_res->pw =  *(l_encoding_value_ptr++);
1480                         l_res->ph =  *(l_encoding_value_ptr++);
1481                         ++l_res;
1482                 }
1483
1484                 ++l_current_comp;
1485                 ++l_img_comp;
1486                 ++l_tccp;
1487         }
1488         ++l_current_pi;
1489
1490         for (pino = 1 ; pino<l_bound ; ++pino ) {
1491                 l_current_comp = l_current_pi->comps;
1492                 l_img_comp = p_image->comps;
1493                 l_tccp = l_tcp->tccps;
1494
1495                 l_current_pi->tx0 = l_tx0;
1496                 l_current_pi->ty0 = l_ty0;
1497                 l_current_pi->tx1 = l_tx1;
1498                 l_current_pi->ty1 = l_ty1;
1499                 l_current_pi->dx = l_dx_min;
1500                 l_current_pi->dy = l_dy_min;
1501                 l_current_pi->step_p = l_step_p;
1502                 l_current_pi->step_c = l_step_c;
1503                 l_current_pi->step_r = l_step_r;
1504                 l_current_pi->step_l = l_step_l;
1505
1506                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1507                 for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1508                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1509                         l_encoding_value_ptr = l_tmp_ptr[compno];
1510
1511                         l_current_comp->dx = l_img_comp->dx;
1512                         l_current_comp->dy = l_img_comp->dy;
1513                         /* resolutions have already been initialized */
1514                         for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1515                                 l_res->pdx = *(l_encoding_value_ptr++);
1516                                 l_res->pdy = *(l_encoding_value_ptr++);
1517                                 l_res->pw =  *(l_encoding_value_ptr++);
1518                                 l_res->ph =  *(l_encoding_value_ptr++);
1519                                 ++l_res;
1520                         }
1521                         ++l_current_comp;
1522                         ++l_img_comp;
1523                         ++l_tccp;
1524                 }
1525
1526                 /* special treatment*/
1527                 l_current_pi->include = (l_current_pi-1)->include;
1528                 ++l_current_pi;
1529         }
1530
1531         opj_free(l_tmp_data);
1532         l_tmp_data = 00;
1533         opj_free(l_tmp_ptr);
1534         l_tmp_ptr = 00;
1535
1536     if (l_tcp->POC && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
1537                 opj_pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1538         }
1539         else {
1540                 opj_pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1541         }
1542
1543         return l_pi;
1544 }
1545
1546 void opj_pi_create_encode(      opj_pi_iterator_t *pi,
1547                                                         opj_cp_t *cp,
1548                                                         OPJ_UINT32 tileno,
1549                                                         OPJ_UINT32 pino,
1550                                                         OPJ_UINT32 tpnum,
1551                                                         OPJ_INT32 tppos,
1552                                                         J2K_T2_MODE t2_mode)
1553 {
1554         const OPJ_CHAR *prog;
1555         OPJ_INT32 i;
1556         OPJ_UINT32 incr_top=1,resetX=0;
1557         opj_tcp_t *tcps =&cp->tcps[tileno];
1558         opj_poc_t *tcp= &tcps->pocs[pino];
1559
1560         prog = opj_j2k_convert_progression_order(tcp->prg);
1561
1562         pi[pino].first = 1;
1563         pi[pino].poc.prg = tcp->prg;
1564
1565     if(!(cp->m_specific_param.m_enc.m_tp_on && ((!OPJ_IS_CINEMA(cp->rsiz) && (t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz)))){
1566                 pi[pino].poc.resno0 = tcp->resS;
1567                 pi[pino].poc.resno1 = tcp->resE;
1568                 pi[pino].poc.compno0 = tcp->compS;
1569                 pi[pino].poc.compno1 = tcp->compE;
1570                 pi[pino].poc.layno0 = tcp->layS;
1571                 pi[pino].poc.layno1 = tcp->layE;
1572                 pi[pino].poc.precno0 = tcp->prcS;
1573                 pi[pino].poc.precno1 = tcp->prcE;
1574                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1575                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1576                 pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1577                 pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1578         }else {
1579                 for(i=tppos+1;i<4;i++){
1580                         switch(prog[i]){
1581                         case 'R':
1582                                 pi[pino].poc.resno0 = tcp->resS;
1583                                 pi[pino].poc.resno1 = tcp->resE;
1584                                 break;
1585                         case 'C':
1586                                 pi[pino].poc.compno0 = tcp->compS;
1587                                 pi[pino].poc.compno1 = tcp->compE;
1588                                 break;
1589                         case 'L':
1590                                 pi[pino].poc.layno0 = tcp->layS;
1591                                 pi[pino].poc.layno1 = tcp->layE;
1592                                 break;
1593                         case 'P':
1594                                 switch(tcp->prg){
1595                                 case OPJ_LRCP:
1596                                 case OPJ_RLCP:
1597                                         pi[pino].poc.precno0 = tcp->prcS;
1598                                         pi[pino].poc.precno1 = tcp->prcE;
1599                                         break;
1600                                 default:
1601                                         pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1602                                         pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1603                                         pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1604                                         pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1605                                         break;
1606                                 }
1607                                 break;
1608                         }
1609                 }
1610
1611                 if(tpnum==0){
1612                         for(i=tppos;i>=0;i--){
1613                                 switch(prog[i]){
1614                                 case 'C':
1615                                         tcp->comp_t = tcp->compS;
1616                                         pi[pino].poc.compno0 = tcp->comp_t;
1617                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1618                                         tcp->comp_t+=1;
1619                                         break;
1620                                 case 'R':
1621                                         tcp->res_t = tcp->resS;
1622                                         pi[pino].poc.resno0 = tcp->res_t;
1623                                         pi[pino].poc.resno1 = tcp->res_t+1;
1624                                         tcp->res_t+=1;
1625                                         break;
1626                                 case 'L':
1627                                         tcp->lay_t = tcp->layS;
1628                                         pi[pino].poc.layno0 = tcp->lay_t;
1629                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1630                                         tcp->lay_t+=1;
1631                                         break;
1632                                 case 'P':
1633                                         switch(tcp->prg){
1634                                         case OPJ_LRCP:
1635                                         case OPJ_RLCP:
1636                                                 tcp->prc_t = tcp->prcS;
1637                                                 pi[pino].poc.precno0 = tcp->prc_t;
1638                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1639                                                 tcp->prc_t+=1;
1640                                                 break;
1641                                         default:
1642                                                 tcp->tx0_t = tcp->txS;
1643                                                 tcp->ty0_t = tcp->tyS;
1644                                                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1645                                                 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1646                                                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1647                                                 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1648                                                 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1649                                                 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1650                                                 break;
1651                                         }
1652                                         break;
1653                                 }
1654                         }
1655                         incr_top=1;
1656                 }else{
1657                         for(i=tppos;i>=0;i--){
1658                                 switch(prog[i]){
1659                                 case 'C':
1660                                         pi[pino].poc.compno0 = tcp->comp_t-1;
1661                                         pi[pino].poc.compno1 = tcp->comp_t;
1662                                         break;
1663                                 case 'R':
1664                                         pi[pino].poc.resno0 = tcp->res_t-1;
1665                                         pi[pino].poc.resno1 = tcp->res_t;
1666                                         break;
1667                                 case 'L':
1668                                         pi[pino].poc.layno0 = tcp->lay_t-1;
1669                                         pi[pino].poc.layno1 = tcp->lay_t;
1670                                         break;
1671                                 case 'P':
1672                                         switch(tcp->prg){
1673                                         case OPJ_LRCP:
1674                                         case OPJ_RLCP:
1675                                                 pi[pino].poc.precno0 = tcp->prc_t-1;
1676                                                 pi[pino].poc.precno1 = tcp->prc_t;
1677                                                 break;
1678                                         default:
1679                                                 pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
1680                                                 pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
1681                                                 pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
1682                                                 pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
1683                                                 break;
1684                                         }
1685                                         break;
1686                                 }
1687                                 if(incr_top==1){
1688                                         switch(prog[i]){
1689                                         case 'R':
1690                                                 if(tcp->res_t==tcp->resE){
1691                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1692                                                                 tcp->res_t = tcp->resS;
1693                                                                 pi[pino].poc.resno0 = tcp->res_t;
1694                                                                 pi[pino].poc.resno1 = tcp->res_t+1;
1695                                                                 tcp->res_t+=1;
1696                                                                 incr_top=1;
1697                                                         }else{
1698                                                                 incr_top=0;
1699                                                         }
1700                                                 }else{
1701                                                         pi[pino].poc.resno0 = tcp->res_t;
1702                                                         pi[pino].poc.resno1 = tcp->res_t+1;
1703                                                         tcp->res_t+=1;
1704                                                         incr_top=0;
1705                                                 }
1706                                                 break;
1707                                         case 'C':
1708                                                 if(tcp->comp_t ==tcp->compE){
1709                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1710                                                                 tcp->comp_t = tcp->compS;
1711                                                                 pi[pino].poc.compno0 = tcp->comp_t;
1712                                                                 pi[pino].poc.compno1 = tcp->comp_t+1;
1713                                                                 tcp->comp_t+=1;
1714                                                                 incr_top=1;
1715                                                         }else{
1716                                                                 incr_top=0;
1717                                                         }
1718                                                 }else{
1719                                                         pi[pino].poc.compno0 = tcp->comp_t;
1720                                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1721                                                         tcp->comp_t+=1;
1722                                                         incr_top=0;
1723                                                 }
1724                                                 break;
1725                                         case 'L':
1726                                                 if(tcp->lay_t == tcp->layE){
1727                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1728                                                                 tcp->lay_t = tcp->layS;
1729                                                                 pi[pino].poc.layno0 = tcp->lay_t;
1730                                                                 pi[pino].poc.layno1 = tcp->lay_t+1;
1731                                                                 tcp->lay_t+=1;
1732                                                                 incr_top=1;
1733                                                         }else{
1734                                                                 incr_top=0;
1735                                                         }
1736                                                 }else{
1737                                                         pi[pino].poc.layno0 = tcp->lay_t;
1738                                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1739                                                         tcp->lay_t+=1;
1740                                                         incr_top=0;
1741                                                 }
1742                                                 break;
1743                                         case 'P':
1744                                                 switch(tcp->prg){
1745                                                 case OPJ_LRCP:
1746                                                 case OPJ_RLCP:
1747                                                         if(tcp->prc_t == tcp->prcE){
1748                                                                 if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1749                                                                         tcp->prc_t = tcp->prcS;
1750                                                                         pi[pino].poc.precno0 = tcp->prc_t;
1751                                                                         pi[pino].poc.precno1 = tcp->prc_t+1;
1752                                                                         tcp->prc_t+=1;
1753                                                                         incr_top=1;
1754                                                                 }else{
1755                                                                         incr_top=0;
1756                                                                 }
1757                                                         }else{
1758                                                                 pi[pino].poc.precno0 = tcp->prc_t;
1759                                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1760                                                                 tcp->prc_t+=1;
1761                                                                 incr_top=0;
1762                                                         }
1763                                                         break;
1764                                                 default:
1765                                                         if(tcp->tx0_t >= tcp->txE){
1766                                                                 if(tcp->ty0_t >= tcp->tyE){
1767                                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1768                                                                                 tcp->ty0_t = tcp->tyS;
1769                                                                                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1770                                                                                 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1771                                                                                 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1772                                                                                 incr_top=1;resetX=1;
1773                                                                         }else{
1774                                                                                 incr_top=0;resetX=0;
1775                                                                         }
1776                                                                 }else{
1777                                                                         pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1778                                                                         pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1779                                                                         tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1780                                                                         incr_top=0;resetX=1;
1781                                                                 }
1782                                                                 if(resetX==1){
1783                                                                         tcp->tx0_t = tcp->txS;
1784                                                                         pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1785                                                                         pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1786                                                                         tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1787                                                                 }
1788                                                         }else{
1789                                                                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1790                                                                 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1791                                                                 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1792                                                                 incr_top=0;
1793                                                         }
1794                                                         break;
1795                                                 }
1796                                                 break;
1797                                         }
1798                                 }
1799                         }
1800                 }
1801         }
1802 }
1803
1804 void opj_pi_destroy(opj_pi_iterator_t *p_pi,
1805                     OPJ_UINT32 p_nb_elements)
1806 {
1807         OPJ_UINT32 compno, pino;
1808         opj_pi_iterator_t *l_current_pi = p_pi;
1809     if (p_pi) {
1810                 if (p_pi->include) {
1811                         opj_free(p_pi->include);
1812                         p_pi->include = 00;
1813                 }
1814                 for (pino = 0; pino < p_nb_elements; ++pino){
1815                         if(l_current_pi->comps) {
1816                                 opj_pi_comp_t *l_current_component = l_current_pi->comps;
1817                 for (compno = 0; compno < l_current_pi->numcomps; compno++){
1818                     if(l_current_component->resolutions) {
1819                                                 opj_free(l_current_component->resolutions);
1820                                                 l_current_component->resolutions = 00;
1821                                         }
1822
1823                                         ++l_current_component;
1824                                 }
1825                                 opj_free(l_current_pi->comps);
1826                                 l_current_pi->comps = 0;
1827                         }
1828                         ++l_current_pi;
1829                 }
1830                 opj_free(p_pi);
1831         }
1832 }
1833
1834
1835
1836 void opj_pi_update_encoding_parameters( const opj_image_t *p_image,
1837                                         opj_cp_t *p_cp,
1838                                         OPJ_UINT32 p_tile_no )
1839 {
1840         /* encoding parameters to set */
1841         OPJ_UINT32 l_max_res;
1842         OPJ_UINT32 l_max_prec;
1843         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1844         OPJ_UINT32 l_dx_min,l_dy_min;
1845
1846         /* pointers */
1847         opj_tcp_t *l_tcp = 00;
1848
1849         /* preconditions */
1850         assert(p_cp != 00);
1851         assert(p_image != 00);
1852         assert(p_tile_no < p_cp->tw * p_cp->th);
1853
1854         l_tcp = &(p_cp->tcps[p_tile_no]);
1855
1856         /* get encoding parameters */
1857         opj_get_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res);
1858
1859         if (l_tcp->POC) {
1860                 opj_pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1861         }
1862         else {
1863                 opj_pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1864         }
1865 }
1866
1867 OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi) {
1868         switch (pi->poc.prg) {
1869                 case OPJ_LRCP:
1870                         return opj_pi_next_lrcp(pi);
1871                 case OPJ_RLCP:
1872                         return opj_pi_next_rlcp(pi);
1873                 case OPJ_RPCL:
1874                         return opj_pi_next_rpcl(pi);
1875                 case OPJ_PCRL:
1876                         return opj_pi_next_pcrl(pi);
1877                 case OPJ_CPRL:
1878                         return opj_pi_next_cprl(pi);
1879                 case OPJ_PROG_UNKNOWN:
1880                         return OPJ_FALSE;
1881         }
1882
1883         return OPJ_FALSE;
1884 }