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 the maximum precision for all the bands of the tile
 140  * @param       p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
 141  * @param       p_dx_min                        pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
 142  * @param       p_dy_min                        pointer that will hold the 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 the maximum precision for all the bands of the tile
 171  * @param       p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
 172  * @param       p_dx_min                pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
 173  * @param       p_dy_min                pointer that will hold the 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 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 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 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 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 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 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 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 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         /* preconditions in debug*/
 697         assert(p_cp != 00);
 698         assert(p_image != 00);
 699         assert(tileno < p_cp->tw * p_cp->th);
 700
 701         /* initializations*/
 702         tcp = &p_cp->tcps [tileno];
 703         l_tccp = tcp->tccps;
 704         l_img_comp = p_image->comps;
 705
 706         /* position in x and y of tile*/
 707         p = tileno % p_cp->tw;
 708         q = tileno / p_cp->tw;
 709
 710         /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
 711         *p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
 712         *p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
 713         *p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
 714         *p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)p_image->y1);
 715
 716         /* max precision and resolution is 0 (can only grow)*/
 717         *p_max_prec = 0;
 718         *p_max_res = 0;
 719
 720         /* take the largest value for dx_min and dy_min*/
 721         *p_dx_min = 0x7fffffff;
 722         *p_dy_min = 0x7fffffff;
 723
 724         for (compno = 0; compno < p_image->numcomps; ++compno) {
 725                 /* aritmetic variables to calculate*/
 726                 OPJ_UINT32 l_level_no;
 727                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
 728                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
 729                 OPJ_UINT32 l_product;
 730                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
 731                 OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
 732
 733                 lResolutionPtr = p_resolutions[compno];
 734
 735                 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
 736                 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
 737                 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
 738                 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
 739
 740                 if (l_tccp->numresolutions > *p_max_res) {
 741                         *p_max_res = l_tccp->numresolutions;
 742                 }
 743
 744                 /* use custom size for precincts*/
 745                 l_level_no = l_tccp->numresolutions - 1;
 746                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
 747                         OPJ_UINT32 l_dx, l_dy;
 748
 749                         /* precinct width and height*/
 750                         l_pdx = l_tccp->prcw[resno];
 751                         l_pdy = l_tccp->prch[resno];
 752                         *lResolutionPtr++ = l_pdx;
 753                         *lResolutionPtr++ = l_pdy;
 754                         l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
 755                         l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
 756                         /* take the minimum size for l_dx for each comp and resolution*/
 757                         *p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dx_min, (OPJ_INT32)l_dx);
 758                         *p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dy_min, (OPJ_INT32)l_dy);
 759
 760                         /* various calculations of extents*/
 761                         l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
 762                         l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
 763                         l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
 764                         l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
 765                         l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
 766                         l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
 767                         l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
 768                         py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
 769                         l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
 770                         l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
 771                         *lResolutionPtr++ = l_pw;
 772                         *lResolutionPtr++ = l_ph;
 773                         l_product = l_pw * l_ph;
 774
 775             /* update precision*/
 776                         if (l_product > *p_max_prec) {
 777                                 *p_max_prec = l_product;
 778                         }
 779
 780                         --l_level_no;
 781                 }
 782                 ++l_tccp;
 783                 ++l_img_comp;
 784         }
 785 }
 786
 787 opj_pi_iterator_t * opj_pi_create(      const opj_image_t *image,
 788                                     const opj_cp_t *cp,
 789                                     OPJ_UINT32 tileno )
 790 {
 791         /* loop*/
 792         OPJ_UINT32 pino, compno;
 793         /* number of poc in the p_pi*/
 794         OPJ_UINT32 l_poc_bound;
 795
 796         /* pointers to tile coding parameters and components.*/
 797         opj_pi_iterator_t *l_pi = 00;
 798         opj_tcp_t *tcp = 00;
 799         const opj_tccp_t *tccp = 00;
 800
 801         /* current packet iterator being allocated*/
 802         opj_pi_iterator_t *l_current_pi = 00;
 803
 804         /* preconditions in debug*/
 805         assert(cp != 00);
 806         assert(image != 00);
 807         assert(tileno < cp->tw * cp->th);
 808
 809         /* initializations*/
 810         tcp = &cp->tcps[tileno];
 811         l_poc_bound = tcp->numpocs+1;
 812
 813         /* memory allocations*/
 814         l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
 815         if (!l_pi) {
 816                 return NULL;
 817         }
 818         memset(l_pi,0,l_poc_bound * sizeof(opj_pi_iterator_t));
 819
 820         l_current_pi = l_pi;
 821         for (pino = 0; pino < l_poc_bound ; ++pino) {
 822
 823                 l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
 824                 if (! l_current_pi->comps) {
 825                         opj_pi_destroy(l_pi, l_poc_bound);
 826                         return NULL;
 827                 }
 828
 829                 l_current_pi->numcomps = image->numcomps;
 830                 memset(l_current_pi->comps,0,image->numcomps * sizeof(opj_pi_comp_t));
 831
 832                 for (compno = 0; compno < image->numcomps; ++compno) {
 833                         opj_pi_comp_t *comp = &l_current_pi->comps[compno];
 834
 835                         tccp = &tcp->tccps[compno];
 836
 837                         comp->resolutions = (opj_pi_resolution_t*) opj_malloc(tccp->numresolutions * sizeof(opj_pi_resolution_t));
 838                         if (!comp->resolutions) {
 839                                 opj_pi_destroy(l_pi, l_poc_bound);
 840                                 return 00;
 841                         }
 842
 843                         comp->numresolutions = tccp->numresolutions;
 844                         memset(comp->resolutions,0,tccp->numresolutions * sizeof(opj_pi_resolution_t));
 845                 }
 846                 ++l_current_pi;
 847         }
 848         return l_pi;
 849 }
 850
 851 void opj_pi_update_encode_poc_and_final (   opj_cp_t *p_cp,
 852                                             OPJ_UINT32 p_tileno,
 853                                             OPJ_INT32 p_tx0,
 854                                             OPJ_INT32 p_tx1,
 855                                             OPJ_INT32 p_ty0,
 856                                             OPJ_INT32 p_ty1,
 857                                             OPJ_UINT32 p_max_prec,
 858                                             OPJ_UINT32 p_max_res,
 859                                             OPJ_UINT32 p_dx_min,
 860                                             OPJ_UINT32 p_dy_min)
 861 {
 862         /* loop*/
 863         OPJ_UINT32 pino;
 864         /* tile coding parameter*/
 865         opj_tcp_t *l_tcp = 00;
 866         /* current poc being updated*/
 867         opj_poc_t * l_current_poc = 00;
 868
 869         /* number of pocs*/
 870         OPJ_UINT32 l_poc_bound;
 871
 872     OPJ_ARG_NOT_USED(p_max_res);
 873
 874         /* preconditions in debug*/
 875         assert(p_cp != 00);
 876         assert(p_tileno < p_cp->tw * p_cp->th);
 877
 878         /* initializations*/
 879         l_tcp = &p_cp->tcps [p_tileno];
 880         /* number of iterations in the loop */
 881         l_poc_bound = l_tcp->numpocs+1;
 882
 883         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
 884            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
 885         l_current_poc = l_tcp->pocs;
 886
 887         l_current_poc->compS = l_current_poc->compno0;
 888         l_current_poc->compE = l_current_poc->compno1;
 889         l_current_poc->resS = l_current_poc->resno0;
 890         l_current_poc->resE = l_current_poc->resno1;
 891         l_current_poc->layE = l_current_poc->layno1;
 892
 893         /* special treatment for the first element*/
 894         l_current_poc->layS = 0;
 895         l_current_poc->prg  = l_current_poc->prg1;
 896         l_current_poc->prcS = 0;
 897
 898         l_current_poc->prcE = p_max_prec;
 899         l_current_poc->txS = (OPJ_UINT32)p_tx0;
 900         l_current_poc->txE = (OPJ_UINT32)p_tx1;
 901         l_current_poc->tyS = (OPJ_UINT32)p_ty0;
 902         l_current_poc->tyE = (OPJ_UINT32)p_ty1;
 903         l_current_poc->dx = p_dx_min;
 904         l_current_poc->dy = p_dy_min;
 905
 906         ++ l_current_poc;
 907         for (pino = 1;pino < l_poc_bound ; ++pino) {
 908                 l_current_poc->compS = l_current_poc->compno0;
 909                 l_current_poc->compE= l_current_poc->compno1;
 910                 l_current_poc->resS = l_current_poc->resno0;
 911                 l_current_poc->resE = l_current_poc->resno1;
 912                 l_current_poc->layE = l_current_poc->layno1;
 913                 l_current_poc->prg  = l_current_poc->prg1;
 914                 l_current_poc->prcS = 0;
 915                 /* special treatment here different from the first element*/
 916                 l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
 917
 918                 l_current_poc->prcE = p_max_prec;
 919                 l_current_poc->txS = (OPJ_UINT32)p_tx0;
 920                 l_current_poc->txE = (OPJ_UINT32)p_tx1;
 921                 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
 922                 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
 923                 l_current_poc->dx = p_dx_min;
 924                 l_current_poc->dy = p_dy_min;
 925                 ++ l_current_poc;
 926         }
 927 }
 928
 929 void opj_pi_update_encode_not_poc (     opj_cp_t *p_cp,
 930                                     OPJ_UINT32 p_num_comps,
 931                                     OPJ_UINT32 p_tileno,
 932                                     OPJ_INT32 p_tx0,
 933                                     OPJ_INT32 p_tx1,
 934                                     OPJ_INT32 p_ty0,
 935                                     OPJ_INT32 p_ty1,
 936                                     OPJ_UINT32 p_max_prec,
 937                                     OPJ_UINT32 p_max_res,
 938                                     OPJ_UINT32 p_dx_min,
 939                                     OPJ_UINT32 p_dy_min)
 940 {
 941         /* loop*/
 942         OPJ_UINT32 pino;
 943         /* tile coding parameter*/
 944         opj_tcp_t *l_tcp = 00;
 945         /* current poc being updated*/
 946         opj_poc_t * l_current_poc = 00;
 947         /* number of pocs*/
 948         OPJ_UINT32 l_poc_bound;
 949
 950         /* preconditions in debug*/
 951         assert(p_cp != 00);
 952         assert(p_tileno < p_cp->tw * p_cp->th);
 953
 954         /* initializations*/
 955         l_tcp = &p_cp->tcps [p_tileno];
 956
 957         /* number of iterations in the loop */
 958         l_poc_bound = l_tcp->numpocs+1;
 959
 960         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
 961            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
 962         l_current_poc = l_tcp->pocs;
 963
 964         for (pino = 0; pino < l_poc_bound ; ++pino) {
 965                 l_current_poc->compS = 0;
 966                 l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
 967                 l_current_poc->resS = 0;
 968                 l_current_poc->resE = p_max_res;
 969                 l_current_poc->layS = 0;
 970                 l_current_poc->layE = l_tcp->numlayers;
 971                 l_current_poc->prg  = l_tcp->prg;
 972                 l_current_poc->prcS = 0;
 973                 l_current_poc->prcE = p_max_prec;
 974                 l_current_poc->txS = (OPJ_UINT32)p_tx0;
 975                 l_current_poc->txE = (OPJ_UINT32)p_tx1;
 976                 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
 977                 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
 978                 l_current_poc->dx = p_dx_min;
 979                 l_current_poc->dy = p_dy_min;
 980                 ++ l_current_poc;
 981         }
 982 }
 983
 984 void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
 985                                opj_tcp_t * p_tcp,
 986                                OPJ_UINT32 p_max_precision,
 987                                OPJ_UINT32 p_max_res)
 988 {
 989         /* loop*/
 990         OPJ_UINT32 pino;
 991
 992         /* encoding prameters to set*/
 993         OPJ_UINT32 l_bound;
 994
 995         opj_pi_iterator_t * l_current_pi = 00;
 996         opj_poc_t* l_current_poc = 0;
 997
 998     OPJ_ARG_NOT_USED(p_max_res);
 999
1000         /* preconditions in debug*/
1001         assert(p_pi != 00);
1002         assert(p_tcp != 00);
1003
1004         /* initializations*/
1005         l_bound = p_tcp->numpocs+1;
1006         l_current_pi = p_pi;
1007         l_current_poc = p_tcp->pocs;
1008
1009         for     (pino = 0;pino<l_bound;++pino) {
1010                 l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
1011                 l_current_pi->first = 1;
1012
1013                 l_current_pi->poc.resno0 = l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
1014                 l_current_pi->poc.compno0 = l_current_poc->compno0; /* Component Index #0 (Start) */
1015                 l_current_pi->poc.layno0 = 0;
1016                 l_current_pi->poc.precno0 = 0;
1017                 l_current_pi->poc.resno1 = l_current_poc->resno1; /* Resolution Level Index #0 (End) */
1018                 l_current_pi->poc.compno1 = l_current_poc->compno1; /* Component Index #0 (End) */
1019                 l_current_pi->poc.layno1 = l_current_poc->layno1; /* Layer Index #0 (End) */
1020                 l_current_pi->poc.precno1 = p_max_precision;
1021                 ++l_current_pi;
1022                 ++l_current_poc;
1023         }
1024 }
1025
1026 void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
1027                                    opj_tcp_t * p_tcp,
1028                                    OPJ_UINT32 p_max_precision,
1029                                    OPJ_UINT32 p_max_res)
1030 {
1031         /* loop*/
1032         OPJ_UINT32 pino;
1033
1034         /* encoding prameters to set*/
1035         OPJ_UINT32 l_bound;
1036
1037         opj_pi_iterator_t * l_current_pi = 00;
1038         /* preconditions in debug*/
1039         assert(p_tcp != 00);
1040         assert(p_pi != 00);
1041
1042         /* initializations*/
1043         l_bound = p_tcp->numpocs+1;
1044         l_current_pi = p_pi;
1045
1046         for (pino = 0;pino<l_bound;++pino) {
1047                 l_current_pi->poc.prg = p_tcp->prg;
1048                 l_current_pi->first = 1;
1049                 l_current_pi->poc.resno0 = 0;
1050                 l_current_pi->poc.compno0 = 0;
1051                 l_current_pi->poc.layno0 = 0;
1052                 l_current_pi->poc.precno0 = 0;
1053                 l_current_pi->poc.resno1 = p_max_res;
1054                 l_current_pi->poc.compno1 = l_current_pi->numcomps;
1055                 l_current_pi->poc.layno1 = p_tcp->numlayers;
1056                 l_current_pi->poc.precno1 = p_max_precision;
1057                 ++l_current_pi;
1058         }
1059 }
1060
1061
1062
1063 OPJ_BOOL opj_pi_check_next_level(       OPJ_INT32 pos,
1064                                                                 opj_cp_t *cp,
1065                                                                 OPJ_UINT32 tileno,
1066                                                                 OPJ_UINT32 pino,
1067                                                                 const OPJ_CHAR *prog)
1068 {
1069         OPJ_INT32 i;
1070         opj_tcp_t *tcps =&cp->tcps[tileno];
1071         opj_poc_t *tcp = &tcps->pocs[pino];
1072
1073         if(pos>=0){
1074                 for(i=pos;pos>=0;i--){
1075                         switch(prog[i]){
1076                     case 'R':
1077                             if(tcp->res_t==tcp->resE){
1078                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1079                                             return OPJ_TRUE;
1080                                     }else{
1081                                             return OPJ_FALSE;
1082                                     }
1083                             }else{
1084                                     return OPJ_TRUE;
1085                             }
1086                             break;
1087                     case 'C':
1088                             if(tcp->comp_t==tcp->compE){
1089                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1090                                             return OPJ_TRUE;
1091                                     }else{
1092                                             return OPJ_FALSE;
1093                                     }
1094                             }else{
1095                                     return OPJ_TRUE;
1096                             }
1097                             break;
1098                     case 'L':
1099                             if(tcp->lay_t==tcp->layE){
1100                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1101                                             return OPJ_TRUE;
1102                                     }else{
1103                                             return OPJ_FALSE;
1104                                     }
1105                             }else{
1106                                     return OPJ_TRUE;
1107                             }
1108                             break;
1109                     case 'P':
1110                             switch(tcp->prg){
1111                                     case OPJ_LRCP||OPJ_RLCP:
1112                                             if(tcp->prc_t == tcp->prcE){
1113                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1114                                                             return OPJ_TRUE;
1115                                                     }else{
1116                                                             return OPJ_FALSE;
1117                                                     }
1118                                             }else{
1119                                                     return OPJ_TRUE;
1120                                             }
1121                                             break;
1122                             default:
1123                                     if(tcp->tx0_t == tcp->txE){
1124                                             /*TY*/
1125                                             if(tcp->ty0_t == tcp->tyE){
1126                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1127                                                             return OPJ_TRUE;
1128                                                     }else{
1129                                                             return OPJ_FALSE;
1130                                                     }
1131                                             }else{
1132                                                     return OPJ_TRUE;
1133                                             }/*TY*/
1134                                     }else{
1135                                             return OPJ_TRUE;
1136                                     }
1137                                     break;
1138                             }/*end case P*/
1139                     }/*end switch*/
1140                 }/*end for*/
1141         }/*end if*/
1142         return OPJ_FALSE;
1143 }
1144
1145
1146 /*
1147 ==========================================================
1148    Packet iterator interface
1149 ==========================================================
1150 */
1151 opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1152                                                                                 opj_cp_t *p_cp,
1153                                                                                 OPJ_UINT32 p_tile_no)
1154 {
1155         /* loop */
1156         OPJ_UINT32 pino;
1157         OPJ_UINT32 compno, resno;
1158
1159         /* to store w, h, dx and dy fro all components and resolutions */
1160         OPJ_UINT32 * l_tmp_data;
1161         OPJ_UINT32 ** l_tmp_ptr;
1162
1163         /* encoding prameters to set */
1164         OPJ_UINT32 l_max_res;
1165         OPJ_UINT32 l_max_prec;
1166         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1167         OPJ_UINT32 l_dx_min,l_dy_min;
1168         OPJ_UINT32 l_bound;
1169         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1170         OPJ_UINT32 l_data_stride;
1171
1172         /* pointers */
1173         opj_pi_iterator_t *l_pi = 00;
1174         opj_tcp_t *l_tcp = 00;
1175         const opj_tccp_t *l_tccp = 00;
1176         opj_pi_comp_t *l_current_comp = 00;
1177         opj_image_comp_t * l_img_comp = 00;
1178         opj_pi_iterator_t * l_current_pi = 00;
1179         OPJ_UINT32 * l_encoding_value_ptr = 00;
1180
1181         /* preconditions in debug */
1182         assert(p_cp != 00);
1183         assert(p_image != 00);
1184         assert(p_tile_no < p_cp->tw * p_cp->th);
1185
1186         /* initializations */
1187         l_tcp = &p_cp->tcps[p_tile_no];
1188         l_bound = l_tcp->numpocs+1;
1189
1190         l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1191         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1192                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1193         if
1194                 (! l_tmp_data)
1195         {
1196                 return 00;
1197         }
1198         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1199                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1200         if
1201                 (! l_tmp_ptr)
1202         {
1203                 opj_free(l_tmp_data);
1204                 return 00;
1205         }
1206
1207         /* memory allocation for pi */
1208         l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1209         if (!l_pi) {
1210                 opj_free(l_tmp_data);
1211                 opj_free(l_tmp_ptr);
1212                 return 00;
1213         }
1214
1215         l_encoding_value_ptr = l_tmp_data;
1216         /* update pointer array */
1217         for
1218                 (compno = 0; compno < p_image->numcomps; ++compno)
1219         {
1220                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1221                 l_encoding_value_ptr += l_data_stride;
1222         }
1223         /* get encoding parameters */
1224         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);
1225
1226         /* step calculations */
1227         l_step_p = 1;
1228         l_step_c = l_max_prec * l_step_p;
1229         l_step_r = p_image->numcomps * l_step_c;
1230         l_step_l = l_max_res * l_step_r;
1231
1232         /* set values for first packet iterator */
1233         l_current_pi = l_pi;
1234
1235         /* memory allocation for include */
1236         l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
1237         if
1238                 (!l_current_pi->include)
1239         {
1240                 opj_free(l_tmp_data);
1241                 opj_free(l_tmp_ptr);
1242                 opj_pi_destroy(l_pi, l_bound);
1243                 return 00;
1244         }
1245         memset(l_current_pi->include,0, (l_tcp->numlayers + 1) * l_step_l* sizeof(OPJ_INT16));
1246
1247         /* special treatment for the first packet iterator */
1248         l_current_comp = l_current_pi->comps;
1249         l_img_comp = p_image->comps;
1250         l_tccp = l_tcp->tccps;
1251
1252         l_current_pi->tx0 = l_tx0;
1253         l_current_pi->ty0 = l_ty0;
1254         l_current_pi->tx1 = l_tx1;
1255         l_current_pi->ty1 = l_ty1;
1256
1257         /*l_current_pi->dx = l_img_comp->dx;*/
1258         /*l_current_pi->dy = l_img_comp->dy;*/
1259
1260         l_current_pi->step_p = l_step_p;
1261         l_current_pi->step_c = l_step_c;
1262         l_current_pi->step_r = l_step_r;
1263         l_current_pi->step_l = l_step_l;
1264
1265         /* allocation for components and number of components has already been calculated by opj_pi_create */
1266         for
1267                 (compno = 0; compno < l_current_pi->numcomps; ++compno)
1268         {
1269                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1270                 l_encoding_value_ptr = l_tmp_ptr[compno];
1271
1272                 l_current_comp->dx = l_img_comp->dx;
1273                 l_current_comp->dy = l_img_comp->dy;
1274                 /* resolutions have already been initialized */
1275                 for
1276                         (resno = 0; resno < l_current_comp->numresolutions; resno++)
1277                 {
1278                         l_res->pdx = *(l_encoding_value_ptr++);
1279                         l_res->pdy = *(l_encoding_value_ptr++);
1280                         l_res->pw =  *(l_encoding_value_ptr++);
1281                         l_res->ph =  *(l_encoding_value_ptr++);
1282                         ++l_res;
1283                 }
1284                 ++l_current_comp;
1285                 ++l_img_comp;
1286                 ++l_tccp;
1287         }
1288         ++l_current_pi;
1289
1290         for (pino = 1 ; pino<l_bound ; ++pino )
1291         {
1292                 l_current_comp = l_current_pi->comps;
1293                 l_img_comp = p_image->comps;
1294                 l_tccp = l_tcp->tccps;
1295
1296                 l_current_pi->tx0 = l_tx0;
1297                 l_current_pi->ty0 = l_ty0;
1298                 l_current_pi->tx1 = l_tx1;
1299                 l_current_pi->ty1 = l_ty1;
1300                 /*l_current_pi->dx = l_dx_min;*/
1301                 /*l_current_pi->dy = l_dy_min;*/
1302                 l_current_pi->step_p = l_step_p;
1303                 l_current_pi->step_c = l_step_c;
1304                 l_current_pi->step_r = l_step_r;
1305                 l_current_pi->step_l = l_step_l;
1306
1307                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1308                 for
1309                         (compno = 0; compno < l_current_pi->numcomps; ++compno)
1310                 {
1311                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1312                         l_encoding_value_ptr = l_tmp_ptr[compno];
1313
1314                         l_current_comp->dx = l_img_comp->dx;
1315                         l_current_comp->dy = l_img_comp->dy;
1316                         /* resolutions have already been initialized */
1317                         for
1318                                 (resno = 0; resno < l_current_comp->numresolutions; resno++)
1319                         {
1320                                 l_res->pdx = *(l_encoding_value_ptr++);
1321                                 l_res->pdy = *(l_encoding_value_ptr++);
1322                                 l_res->pw =  *(l_encoding_value_ptr++);
1323                                 l_res->ph =  *(l_encoding_value_ptr++);
1324                                 ++l_res;
1325                         }
1326                         ++l_current_comp;
1327                         ++l_img_comp;
1328                         ++l_tccp;
1329                 }
1330                 /* special treatment*/
1331                 l_current_pi->include = (l_current_pi-1)->include;
1332                 ++l_current_pi;
1333         }
1334         opj_free(l_tmp_data);
1335         l_tmp_data = 00;
1336         opj_free(l_tmp_ptr);
1337         l_tmp_ptr = 00;
1338         if
1339                 (l_tcp->POC)
1340         {
1341                 opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
1342         }
1343         else
1344         {
1345                 opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
1346         }
1347         return l_pi;
1348 }
1349
1350
1351
1352 opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1353                                             opj_cp_t *p_cp,
1354                                             OPJ_UINT32 p_tile_no,
1355                                             J2K_T2_MODE p_t2_mode )
1356 {
1357         /* loop*/
1358         OPJ_UINT32 pino;
1359         OPJ_UINT32 compno, resno;
1360
1361         /* to store w, h, dx and dy fro all components and resolutions*/
1362         OPJ_UINT32 * l_tmp_data;
1363         OPJ_UINT32 ** l_tmp_ptr;
1364
1365         /* encoding prameters to set*/
1366         OPJ_UINT32 l_max_res;
1367         OPJ_UINT32 l_max_prec;
1368         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1369         OPJ_UINT32 l_dx_min,l_dy_min;
1370         OPJ_UINT32 l_bound;
1371         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1372         OPJ_UINT32 l_data_stride;
1373
1374         /* pointers*/
1375         opj_pi_iterator_t *l_pi = 00;
1376         opj_tcp_t *l_tcp = 00;
1377         const opj_tccp_t *l_tccp = 00;
1378         opj_pi_comp_t *l_current_comp = 00;
1379         opj_image_comp_t * l_img_comp = 00;
1380         opj_pi_iterator_t * l_current_pi = 00;
1381         OPJ_UINT32 * l_encoding_value_ptr = 00;
1382
1383         /* preconditions in debug*/
1384         assert(p_cp != 00);
1385         assert(p_image != 00);
1386         assert(p_tile_no < p_cp->tw * p_cp->th);
1387
1388         /* initializations*/
1389         l_tcp = &p_cp->tcps[p_tile_no];
1390         l_bound = l_tcp->numpocs+1;
1391
1392         l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1393         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1394                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1395         if (! l_tmp_data) {
1396                 return 00;
1397         }
1398
1399         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1400                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1401         if (! l_tmp_ptr) {
1402                 opj_free(l_tmp_data);
1403                 return 00;
1404         }
1405
1406         /* memory allocation for pi*/
1407         l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
1408         if (!l_pi) {
1409                 opj_free(l_tmp_data);
1410                 opj_free(l_tmp_ptr);
1411                 return 00;
1412         }
1413
1414         l_encoding_value_ptr = l_tmp_data;
1415         /* update pointer array*/
1416         for (compno = 0; compno < p_image->numcomps; ++compno) {
1417                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1418                 l_encoding_value_ptr += l_data_stride;
1419         }
1420
1421         /* get encoding parameters*/
1422         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);
1423
1424         /* step calculations*/
1425         l_step_p = 1;
1426         l_step_c = l_max_prec * l_step_p;
1427         l_step_r = p_image->numcomps * l_step_c;
1428         l_step_l = l_max_res * l_step_r;
1429
1430         /* set values for first packet iterator*/
1431         l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
1432         l_current_pi = l_pi;
1433
1434         /* memory allocation for include*/
1435         l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
1436         if (!l_current_pi->include) {
1437                 opj_free(l_tmp_data);
1438                 opj_free(l_tmp_ptr);
1439                 opj_pi_destroy(l_pi, l_bound);
1440                 return 00;
1441         }
1442         memset(l_current_pi->include,0,l_tcp->numlayers * l_step_l* sizeof(OPJ_INT16));
1443
1444         /* special treatment for the first packet iterator*/
1445         l_current_comp = l_current_pi->comps;
1446         l_img_comp = p_image->comps;
1447         l_tccp = l_tcp->tccps;
1448         l_current_pi->tx0 = l_tx0;
1449         l_current_pi->ty0 = l_ty0;
1450         l_current_pi->tx1 = l_tx1;
1451         l_current_pi->ty1 = l_ty1;
1452         l_current_pi->dx = l_dx_min;
1453         l_current_pi->dy = l_dy_min;
1454         l_current_pi->step_p = l_step_p;
1455         l_current_pi->step_c = l_step_c;
1456         l_current_pi->step_r = l_step_r;
1457         l_current_pi->step_l = l_step_l;
1458
1459         /* allocation for components and number of components has already been calculated by opj_pi_create */
1460         for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1461                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1462                 l_encoding_value_ptr = l_tmp_ptr[compno];
1463
1464                 l_current_comp->dx = l_img_comp->dx;
1465                 l_current_comp->dy = l_img_comp->dy;
1466
1467                 /* resolutions have already been initialized */
1468                 for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1469                         l_res->pdx = *(l_encoding_value_ptr++);
1470                         l_res->pdy = *(l_encoding_value_ptr++);
1471                         l_res->pw =  *(l_encoding_value_ptr++);
1472                         l_res->ph =  *(l_encoding_value_ptr++);
1473                         ++l_res;
1474                 }
1475
1476                 ++l_current_comp;
1477                 ++l_img_comp;
1478                 ++l_tccp;
1479         }
1480         ++l_current_pi;
1481
1482         for (pino = 1 ; pino<l_bound ; ++pino ) {
1483                 l_current_comp = l_current_pi->comps;
1484                 l_img_comp = p_image->comps;
1485                 l_tccp = l_tcp->tccps;
1486
1487                 l_current_pi->tx0 = l_tx0;
1488                 l_current_pi->ty0 = l_ty0;
1489                 l_current_pi->tx1 = l_tx1;
1490                 l_current_pi->ty1 = l_ty1;
1491                 l_current_pi->dx = l_dx_min;
1492                 l_current_pi->dy = l_dy_min;
1493                 l_current_pi->step_p = l_step_p;
1494                 l_current_pi->step_c = l_step_c;
1495                 l_current_pi->step_r = l_step_r;
1496                 l_current_pi->step_l = l_step_l;
1497
1498                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1499                 for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1500                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1501                         l_encoding_value_ptr = l_tmp_ptr[compno];
1502
1503                         l_current_comp->dx = l_img_comp->dx;
1504                         l_current_comp->dy = l_img_comp->dy;
1505                         /* resolutions have already been initialized */
1506                         for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1507                                 l_res->pdx = *(l_encoding_value_ptr++);
1508                                 l_res->pdy = *(l_encoding_value_ptr++);
1509                                 l_res->pw =  *(l_encoding_value_ptr++);
1510                                 l_res->ph =  *(l_encoding_value_ptr++);
1511                                 ++l_res;
1512                         }
1513                         ++l_current_comp;
1514                         ++l_img_comp;
1515                         ++l_tccp;
1516                 }
1517
1518                 /* special treatment*/
1519                 l_current_pi->include = (l_current_pi-1)->include;
1520                 ++l_current_pi;
1521         }
1522
1523         opj_free(l_tmp_data);
1524         l_tmp_data = 00;
1525         opj_free(l_tmp_ptr);
1526         l_tmp_ptr = 00;
1527
1528     if (l_tcp->POC && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
1529                 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);
1530         }
1531         else {
1532                 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);
1533         }
1534
1535         return l_pi;
1536 }
1537
1538 void opj_pi_create_encode(      opj_pi_iterator_t *pi,
1539                                                         opj_cp_t *cp,
1540                                                         OPJ_UINT32 tileno,
1541                                                         OPJ_UINT32 pino,
1542                                                         OPJ_UINT32 tpnum,
1543                                                         OPJ_INT32 tppos,
1544                                                         J2K_T2_MODE t2_mode)
1545 {
1546         const OPJ_CHAR *prog;
1547         OPJ_INT32 i;
1548         OPJ_UINT32 incr_top=1,resetX=0;
1549         opj_tcp_t *tcps =&cp->tcps[tileno];
1550         opj_poc_t *tcp= &tcps->pocs[pino];
1551
1552         prog = opj_j2k_convert_progression_order(tcp->prg);
1553
1554         pi[pino].first = 1;
1555         pi[pino].poc.prg = tcp->prg;
1556
1557     if(!(cp->m_specific_param.m_enc.m_tp_on && ((!OPJ_IS_CINEMA(cp->rsiz) && (t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz)))){
1558                 pi[pino].poc.resno0 = tcp->resS;
1559                 pi[pino].poc.resno1 = tcp->resE;
1560                 pi[pino].poc.compno0 = tcp->compS;
1561                 pi[pino].poc.compno1 = tcp->compE;
1562                 pi[pino].poc.layno0 = tcp->layS;
1563                 pi[pino].poc.layno1 = tcp->layE;
1564                 pi[pino].poc.precno0 = tcp->prcS;
1565                 pi[pino].poc.precno1 = tcp->prcE;
1566                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1567                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1568                 pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1569                 pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1570         }else {
1571                 for(i=tppos+1;i<4;i++){
1572                         switch(prog[i]){
1573                         case 'R':
1574                                 pi[pino].poc.resno0 = tcp->resS;
1575                                 pi[pino].poc.resno1 = tcp->resE;
1576                                 break;
1577                         case 'C':
1578                                 pi[pino].poc.compno0 = tcp->compS;
1579                                 pi[pino].poc.compno1 = tcp->compE;
1580                                 break;
1581                         case 'L':
1582                                 pi[pino].poc.layno0 = tcp->layS;
1583                                 pi[pino].poc.layno1 = tcp->layE;
1584                                 break;
1585                         case 'P':
1586                                 switch(tcp->prg){
1587                                 case OPJ_LRCP:
1588                                 case OPJ_RLCP:
1589                                         pi[pino].poc.precno0 = tcp->prcS;
1590                                         pi[pino].poc.precno1 = tcp->prcE;
1591                                         break;
1592                                 default:
1593                                         pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1594                                         pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1595                                         pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1596                                         pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1597                                         break;
1598                                 }
1599                                 break;
1600                         }
1601                 }
1602
1603                 if(tpnum==0){
1604                         for(i=tppos;i>=0;i--){
1605                                 switch(prog[i]){
1606                                 case 'C':
1607                                         tcp->comp_t = tcp->compS;
1608                                         pi[pino].poc.compno0 = tcp->comp_t;
1609                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1610                                         tcp->comp_t+=1;
1611                                         break;
1612                                 case 'R':
1613                                         tcp->res_t = tcp->resS;
1614                                         pi[pino].poc.resno0 = tcp->res_t;
1615                                         pi[pino].poc.resno1 = tcp->res_t+1;
1616                                         tcp->res_t+=1;
1617                                         break;
1618                                 case 'L':
1619                                         tcp->lay_t = tcp->layS;
1620                                         pi[pino].poc.layno0 = tcp->lay_t;
1621                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1622                                         tcp->lay_t+=1;
1623                                         break;
1624                                 case 'P':
1625                                         switch(tcp->prg){
1626                                         case OPJ_LRCP:
1627                                         case OPJ_RLCP:
1628                                                 tcp->prc_t = tcp->prcS;
1629                                                 pi[pino].poc.precno0 = tcp->prc_t;
1630                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1631                                                 tcp->prc_t+=1;
1632                                                 break;
1633                                         default:
1634                                                 tcp->tx0_t = tcp->txS;
1635                                                 tcp->ty0_t = tcp->tyS;
1636                                                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1637                                                 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1638                                                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1639                                                 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1640                                                 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1641                                                 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1642                                                 break;
1643                                         }
1644                                         break;
1645                                 }
1646                         }
1647                         incr_top=1;
1648                 }else{
1649                         for(i=tppos;i>=0;i--){
1650                                 switch(prog[i]){
1651                                 case 'C':
1652                                         pi[pino].poc.compno0 = tcp->comp_t-1;
1653                                         pi[pino].poc.compno1 = tcp->comp_t;
1654                                         break;
1655                                 case 'R':
1656                                         pi[pino].poc.resno0 = tcp->res_t-1;
1657                                         pi[pino].poc.resno1 = tcp->res_t;
1658                                         break;
1659                                 case 'L':
1660                                         pi[pino].poc.layno0 = tcp->lay_t-1;
1661                                         pi[pino].poc.layno1 = tcp->lay_t;
1662                                         break;
1663                                 case 'P':
1664                                         switch(tcp->prg){
1665                                         case OPJ_LRCP:
1666                                         case OPJ_RLCP:
1667                                                 pi[pino].poc.precno0 = tcp->prc_t-1;
1668                                                 pi[pino].poc.precno1 = tcp->prc_t;
1669                                                 break;
1670                                         default:
1671                                                 pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
1672                                                 pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
1673                                                 pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
1674                                                 pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
1675                                                 break;
1676                                         }
1677                                         break;
1678                                 }
1679                                 if(incr_top==1){
1680                                         switch(prog[i]){
1681                                         case 'R':
1682                                                 if(tcp->res_t==tcp->resE){
1683                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1684                                                                 tcp->res_t = tcp->resS;
1685                                                                 pi[pino].poc.resno0 = tcp->res_t;
1686                                                                 pi[pino].poc.resno1 = tcp->res_t+1;
1687                                                                 tcp->res_t+=1;
1688                                                                 incr_top=1;
1689                                                         }else{
1690                                                                 incr_top=0;
1691                                                         }
1692                                                 }else{
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=0;
1697                                                 }
1698                                                 break;
1699                                         case 'C':
1700                                                 if(tcp->comp_t ==tcp->compE){
1701                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1702                                                                 tcp->comp_t = tcp->compS;
1703                                                                 pi[pino].poc.compno0 = tcp->comp_t;
1704                                                                 pi[pino].poc.compno1 = tcp->comp_t+1;
1705                                                                 tcp->comp_t+=1;
1706                                                                 incr_top=1;
1707                                                         }else{
1708                                                                 incr_top=0;
1709                                                         }
1710                                                 }else{
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=0;
1715                                                 }
1716                                                 break;
1717                                         case 'L':
1718                                                 if(tcp->lay_t == tcp->layE){
1719                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1720                                                                 tcp->lay_t = tcp->layS;
1721                                                                 pi[pino].poc.layno0 = tcp->lay_t;
1722                                                                 pi[pino].poc.layno1 = tcp->lay_t+1;
1723                                                                 tcp->lay_t+=1;
1724                                                                 incr_top=1;
1725                                                         }else{
1726                                                                 incr_top=0;
1727                                                         }
1728                                                 }else{
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=0;
1733                                                 }
1734                                                 break;
1735                                         case 'P':
1736                                                 switch(tcp->prg){
1737                                                 case OPJ_LRCP:
1738                                                 case OPJ_RLCP:
1739                                                         if(tcp->prc_t == tcp->prcE){
1740                                                                 if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1741                                                                         tcp->prc_t = tcp->prcS;
1742                                                                         pi[pino].poc.precno0 = tcp->prc_t;
1743                                                                         pi[pino].poc.precno1 = tcp->prc_t+1;
1744                                                                         tcp->prc_t+=1;
1745                                                                         incr_top=1;
1746                                                                 }else{
1747                                                                         incr_top=0;
1748                                                                 }
1749                                                         }else{
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=0;
1754                                                         }
1755                                                         break;
1756                                                 default:
1757                                                         if(tcp->tx0_t >= tcp->txE){
1758                                                                 if(tcp->ty0_t >= tcp->tyE){
1759                                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1760                                                                                 tcp->ty0_t = tcp->tyS;
1761                                                                                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1762                                                                                 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1763                                                                                 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1764                                                                                 incr_top=1;resetX=1;
1765                                                                         }else{
1766                                                                                 incr_top=0;resetX=0;
1767                                                                         }
1768                                                                 }else{
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=0;resetX=1;
1773                                                                 }
1774                                                                 if(resetX==1){
1775                                                                         tcp->tx0_t = tcp->txS;
1776                                                                         pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1777                                                                         pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1778                                                                         tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1779                                                                 }
1780                                                         }else{
1781                                                                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1782                                                                 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1783                                                                 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1784                                                                 incr_top=0;
1785                                                         }
1786                                                         break;
1787                                                 }
1788                                                 break;
1789                                         }
1790                                 }
1791                         }
1792                 }
1793         }
1794 }
1795
1796 void opj_pi_destroy(opj_pi_iterator_t *p_pi,
1797                     OPJ_UINT32 p_nb_elements)
1798 {
1799         OPJ_UINT32 compno, pino;
1800         opj_pi_iterator_t *l_current_pi = p_pi;
1801     if (p_pi) {
1802                 if (p_pi->include) {
1803                         opj_free(p_pi->include);
1804                         p_pi->include = 00;
1805                 }
1806                 for (pino = 0; pino < p_nb_elements; ++pino){
1807                         if(l_current_pi->comps) {
1808                                 opj_pi_comp_t *l_current_component = l_current_pi->comps;
1809                 for (compno = 0; compno < l_current_pi->numcomps; compno++){
1810                     if(l_current_component->resolutions) {
1811                                                 opj_free(l_current_component->resolutions);
1812                                                 l_current_component->resolutions = 00;
1813                                         }
1814
1815                                         ++l_current_component;
1816                                 }
1817                                 opj_free(l_current_pi->comps);
1818                                 l_current_pi->comps = 0;
1819                         }
1820                         ++l_current_pi;
1821                 }
1822                 opj_free(p_pi);
1823         }
1824 }
1825
1826
1827
1828 void opj_pi_update_encoding_parameters( const opj_image_t *p_image,
1829                                         opj_cp_t *p_cp,
1830                                         OPJ_UINT32 p_tile_no )
1831 {
1832         /* encoding parameters to set */
1833         OPJ_UINT32 l_max_res;
1834         OPJ_UINT32 l_max_prec;
1835         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1836         OPJ_UINT32 l_dx_min,l_dy_min;
1837
1838         /* pointers */
1839         opj_tcp_t *l_tcp = 00;
1840
1841         /* preconditions */
1842         assert(p_cp != 00);
1843         assert(p_image != 00);
1844         assert(p_tile_no < p_cp->tw * p_cp->th);
1845
1846         l_tcp = &(p_cp->tcps[p_tile_no]);
1847
1848         /* get encoding parameters */
1849         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);
1850
1851         if (l_tcp->POC) {
1852                 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);
1853         }
1854         else {
1855                 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);
1856         }
1857 }
1858
1859 OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi) {
1860         switch (pi->poc.prg) {
1861                 case OPJ_LRCP:
1862                         return opj_pi_next_lrcp(pi);
1863                 case OPJ_RLCP:
1864                         return opj_pi_next_rlcp(pi);
1865                 case OPJ_RPCL:
1866                         return opj_pi_next_rpcl(pi);
1867                 case OPJ_PCRL:
1868                         return opj_pi_next_pcrl(pi);
1869                 case OPJ_CPRL:
1870                         return opj_pi_next_cprl(pi);
1871                 case OPJ_PROG_UNKNOWN:
1872                         return OPJ_FALSE;
1873         }
1874
1875         return OPJ_FALSE;
1876 }