src/lib/openjp2/pi.c

   1 /*
   2  * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
   3  * Copyright (c) 2002-2007, Professor Benoit Macq
   4  * Copyright (c) 2001-2003, David Janssens
   5  * Copyright (c) 2002-2003, Yannick Verschueren
   6  * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
   7  * Copyright (c) 2005, Herve Drolon, FreeImage Team
   8  * Copyright (c) 2006-2007, Parvatha Elangovan
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include "opj_includes.h"
  34
  35 /** @defgroup PI PI - Implementation of a packet iterator */
  36 /*@{*/
  37
  38 /** @name Local static functions */
  39 /*@{*/
  40
  41 /**
  42 Get next packet in layer-resolution-component-precinct order.
  43 @param pi packet iterator to modify
  44 @return returns false if pi pointed to the last packet or else returns true
  45 */
  46 static opj_bool opj_pi_next_lrcp(opj_pi_iterator_t * pi);
  47 /**
  48 Get next packet in resolution-layer-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_rlcp(opj_pi_iterator_t * pi);
  53 /**
  54 Get next packet in resolution-precinct-component-layer 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_rpcl(opj_pi_iterator_t * pi);
  59 /**
  60 Get next packet in precinct-component-resolution-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_pcrl(opj_pi_iterator_t * pi);
  65 /**
  66 Get next packet in component-precinct-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_cprl(opj_pi_iterator_t * pi);
  71
  72 /**
  73  * Updates the coding parameters if the encoding is used with Progression order changes and final (or cinema parameters are used).
  74  *
  75  * @param       p_cp            the coding parameters to modify
  76  * @param       p_tileno        the tile index being concerned.
  77  * @param       p_tx0           X0 parameter for the tile
  78  * @param       p_tx1           X1 parameter for the tile
  79  * @param       p_ty0           Y0 parameter for the tile
  80  * @param       p_ty1           Y1 parameter for the tile
  81  * @param       p_max_prec      the maximum precision for all the bands of the tile
  82  * @param       p_max_res       the maximum number of resolutions for all the poc inside the tile.
  83  * @param       p_dx_min                the minimum dx of all the components of all the resolutions for the tile.
  84  * @param       p_dy_min                the minimum dy of all the components of all the resolutions for the tile.
  85  */
  86 static void opj_pi_update_encode_poc_and_final ( opj_cp_t *p_cp,
  87                                                  OPJ_UINT32 p_tileno,
  88                                                  OPJ_INT32 p_tx0,
  89                                                  OPJ_INT32 p_tx1,
  90                                                  OPJ_INT32 p_ty0,
  91                                                  OPJ_INT32 p_ty1,
  92                                                  OPJ_UINT32 p_max_prec,
  93                                                  OPJ_UINT32 p_max_res,
  94                                                  OPJ_UINT32 p_dx_min,
  95                                                  OPJ_UINT32 p_dy_min);
  96
  97 /**
  98  * Updates the coding parameters if the encoding is not used with Progression order changes and final (and cinema parameters are used).
  99  *
 100  * @param       p_cp            the coding parameters to modify
 101  * @param       p_tileno        the tile index being concerned.
 102  * @param       p_tx0           X0 parameter for the tile
 103  * @param       p_tx1           X1 parameter for the tile
 104  * @param       p_ty0           Y0 parameter for the tile
 105  * @param       p_ty1           Y1 parameter for the tile
 106  * @param       p_max_prec      the maximum precision for all the bands of the tile
 107  * @param       p_max_res       the maximum number of resolutions for all the poc inside the tile.
 108  * @param       dx_min          the minimum dx of all the components of all the resolutions for the tile.
 109  * @param       dy_min          the minimum dy of all the components of all the resolutions for the tile.
 110  */
 111 static void opj_pi_update_encode_not_poc (  opj_cp_t *p_cp,
 112                                             OPJ_UINT32 p_num_comps,
 113                                             OPJ_UINT32 p_tileno,
 114                                             OPJ_INT32 p_tx0,
 115                                             OPJ_INT32 p_tx1,
 116                                             OPJ_INT32 p_ty0,
 117                                             OPJ_INT32 p_ty1,
 118                                             OPJ_UINT32 p_max_prec,
 119                                             OPJ_UINT32 p_max_res,
 120                                             OPJ_UINT32 p_dx_min,
 121                                             OPJ_UINT32 p_dy_min);
 122 /**
 123  * Gets the encoding parameters needed to update the coding parameters and all the pocs.
 124  *
 125  * @param       p_image                 the image being encoded.
 126  * @param       p_cp                    the coding parameters.
 127  * @param       p_tileno                        the tile index of the tile being encoded.
 128  * @param       p_tx0                   pointer that will hold the X0 parameter for the tile
 129  * @param       p_tx1                   pointer that will hold the X1 parameter for the tile
 130  * @param       p_ty0                   pointer that will hold the Y0 parameter for the tile
 131  * @param       p_ty1                   pointer that will hold the Y1 parameter for the tile
 132  * @param       p_max_prec              pointer that will hold the the maximum precision for all the bands of the tile
 133  * @param       p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
 134  * @param       dx_min                  pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
 135  * @param       dy_min                  pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
 136  */
 137 static void opj_get_encoding_parameters(const opj_image_t *p_image,
 138                                         const opj_cp_t *p_cp,
 139                                         OPJ_UINT32  tileno,
 140                                         OPJ_INT32  * p_tx0,
 141                                         OPJ_INT32 * p_tx1,
 142                                         OPJ_INT32 * p_ty0,
 143                                         OPJ_INT32 * p_ty1,
 144                                         OPJ_UINT32 * p_dx_min,
 145                                         OPJ_UINT32 * p_dy_min,
 146                                         OPJ_UINT32 * p_max_prec,
 147                                         OPJ_UINT32 * p_max_res );
 148
 149 /**
 150  * Gets the encoding parameters needed to update the coding parameters and all the pocs.
 151  * The precinct widths, heights, dx and dy for each component at each resolution will be stored as well.
 152  * the last parameter of the function should be an array of pointers of size nb components, each pointer leading
 153  * to an area of size 4 * max_res. The data is stored inside this area with the following pattern :
 154  * dx_compi_res0 , dy_compi_res0 , w_compi_res0, h_compi_res0 , dx_compi_res1 , dy_compi_res1 , w_compi_res1, h_compi_res1 , ...
 155  *
 156  * @param       p_image                 the image being encoded.
 157  * @param       p_cp                    the coding parameters.
 158  * @param       tileno                  the tile index of the tile being encoded.
 159  * @param       p_tx0                   pointer that will hold the X0 parameter for the tile
 160  * @param       p_tx1                   pointer that will hold the X1 parameter for the tile
 161  * @param       p_ty0                   pointer that will hold the Y0 parameter for the tile
 162  * @param       p_ty1                   pointer that will hold the Y1 parameter for the tile
 163  * @param       p_max_prec              pointer that will hold the the maximum precision for all the bands of the tile
 164  * @param       p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
 165  * @param       p_dx_min                pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
 166  * @param       p_dy_min                pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
 167  * @param       p_resolutions   pointer to an area corresponding to the one described above.
 168  */
 169 static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
 170                                             const opj_cp_t *p_cp,
 171                                             OPJ_UINT32 tileno,
 172                                             OPJ_INT32 * p_tx0,
 173                                             OPJ_INT32 * p_tx1,
 174                                             OPJ_INT32 * p_ty0,
 175                                             OPJ_INT32 * p_ty1,
 176                                             OPJ_UINT32 * p_dx_min,
 177                                             OPJ_UINT32 * p_dy_min,
 178                                             OPJ_UINT32 * p_max_prec,
 179                                             OPJ_UINT32 * p_max_res,
 180                                             OPJ_UINT32 ** p_resolutions );
 181 /**
 182  * Allocates memory for a packet iterator. Data and data sizes are set by this operation.
 183  * No other data is set. The include section of the packet  iterator is not allocated.
 184  *
 185  * @param       p_image         the image used to initialize the packet iterator (in fact only the number of components is relevant.
 186  * @param       p_cp            the coding parameters.
 187  * @param       p_tile_no       the index of the tile from which creating the packet iterator.
 188  */
 189 static opj_pi_iterator_t * opj_pi_create(       const opj_image_t *image,
 190                                             const opj_cp_t *cp,
 191                                             OPJ_UINT32 tileno );
 192 /**
 193  * FIXME DOC
 194  */
 195 static void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
 196                                           opj_tcp_v2_t * p_tcp,
 197                                           OPJ_UINT32 p_max_precision,
 198                                           OPJ_UINT32 p_max_res);
 199 /**
 200  * FIXME DOC
 201  */
 202 static void opj_pi_update_decode_poc (  opj_pi_iterator_t * p_pi,
 203                                         opj_tcp_v2_t * p_tcp,
 204                                         OPJ_UINT32 p_max_precision,
 205                                         OPJ_UINT32 p_max_res);
 206
 207 /**
 208  * FIXME DOC
 209  */
 210 opj_bool opj_pi_check_next_level(       OPJ_INT32 pos,
 211                                                                 opj_cp_t *cp,
 212                                                                 OPJ_UINT32 tileno,
 213                                                                 OPJ_UINT32 pino,
 214                                                                 const OPJ_CHAR *prog);
 215
 216 /*@}*/
 217
 218 /*@}*/
 219
 220 /*
 221 ==========================================================
 222    local functions
 223 ==========================================================
 224 */
 225
 226 opj_bool opj_pi_next_lrcp(opj_pi_iterator_t * pi) {
 227         opj_pi_comp_t *comp = NULL;
 228         opj_pi_resolution_t *res = NULL;
 229         OPJ_UINT32 index = 0;
 230
 231         if (!pi->first) {
 232                 comp = &pi->comps[pi->compno];
 233                 res = &comp->resolutions[pi->resno];
 234                 goto LABEL_SKIP;
 235         } else {
 236                 pi->first = 0;
 237         }
 238
 239         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 240                 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
 241                 pi->resno++) {
 242                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 243                                 comp = &pi->comps[pi->compno];
 244                                 if (pi->resno >= comp->numresolutions) {
 245                                         continue;
 246                                 }
 247                                 res = &comp->resolutions[pi->resno];
 248                                 if (!pi->tp_on){
 249                                         pi->poc.precno1 = res->pw * res->ph;
 250                                 }
 251                                 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
 252                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 253                                         if (!pi->include[index]) {
 254                                                 pi->include[index] = 1;
 255                                                 return OPJ_TRUE;
 256                                         }
 257 LABEL_SKIP:;
 258                                 }
 259                         }
 260                 }
 261         }
 262
 263         return OPJ_FALSE;
 264 }
 265
 266 opj_bool opj_pi_next_rlcp(opj_pi_iterator_t * pi) {
 267         opj_pi_comp_t *comp = NULL;
 268         opj_pi_resolution_t *res = NULL;
 269         OPJ_UINT32 index = 0;
 270
 271         if (!pi->first) {
 272                 comp = &pi->comps[pi->compno];
 273                 res = &comp->resolutions[pi->resno];
 274                 goto LABEL_SKIP;
 275         } else {
 276                 pi->first = 0;
 277         }
 278
 279         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
 280                 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 281                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 282                                 comp = &pi->comps[pi->compno];
 283                                 if (pi->resno >= comp->numresolutions) {
 284                                         continue;
 285                                 }
 286                                 res = &comp->resolutions[pi->resno];
 287                                 if(!pi->tp_on){
 288                                         pi->poc.precno1 = res->pw * res->ph;
 289                                 }
 290                                 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
 291                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 292                                         if (!pi->include[index]) {
 293                                                 pi->include[index] = 1;
 294                                                 return OPJ_TRUE;
 295                                         }
 296 LABEL_SKIP:;
 297                                 }
 298                         }
 299                 }
 300         }
 301
 302         return OPJ_FALSE;
 303 }
 304
 305 opj_bool opj_pi_next_rpcl(opj_pi_iterator_t * pi) {
 306         opj_pi_comp_t *comp = NULL;
 307         opj_pi_resolution_t *res = NULL;
 308         OPJ_UINT32 index = 0;
 309
 310         if (!pi->first) {
 311                 goto LABEL_SKIP;
 312         } else {
 313                 OPJ_UINT32 compno, resno;
 314                 pi->first = 0;
 315                 pi->dx = 0;
 316                 pi->dy = 0;
 317                 for (compno = 0; compno < pi->numcomps; compno++) {
 318                         comp = &pi->comps[compno];
 319                         for (resno = 0; resno < comp->numresolutions; resno++) {
 320                                 OPJ_UINT32 dx, dy;
 321                                 res = &comp->resolutions[resno];
 322                                 dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
 323                                 dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
 324                                 pi->dx = !pi->dx ? dx : opj_int_min(pi->dx, dx);
 325                                 pi->dy = !pi->dy ? dy : opj_int_min(pi->dy, dy);
 326                         }
 327                 }
 328         }
 329 if (!pi->tp_on){
 330                         pi->poc.ty0 = pi->ty0;
 331                         pi->poc.tx0 = pi->tx0;
 332                         pi->poc.ty1 = pi->ty1;
 333                         pi->poc.tx1 = pi->tx1;
 334                 }
 335         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
 336                 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
 337                         for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
 338                                 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 339                                         OPJ_UINT32 levelno;
 340                                         OPJ_INT32 trx0, try0;
 341                                         OPJ_INT32  trx1, try1;
 342                                         OPJ_UINT32  rpx, rpy;
 343                                         OPJ_INT32  prci, prcj;
 344                                         comp = &pi->comps[pi->compno];
 345                                         if (pi->resno >= comp->numresolutions) {
 346                                                 continue;
 347                                         }
 348                                         res = &comp->resolutions[pi->resno];
 349                                         levelno = comp->numresolutions - 1 - pi->resno;
 350                                         trx0 = opj_int_ceildiv(pi->tx0, comp->dx << levelno);
 351                                         try0 = opj_int_ceildiv(pi->ty0, comp->dy << levelno);
 352                                         trx1 = opj_int_ceildiv(pi->tx1, comp->dx << levelno);
 353                                         try1 = opj_int_ceildiv(pi->ty1, comp->dy << levelno);
 354                                         rpx = res->pdx + levelno;
 355                                         rpy = res->pdy + levelno;
 356                                         if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
 357                                                 continue;
 358                                         }
 359                                         if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
 360                                                 continue;
 361                                         }
 362
 363                                         if ((res->pw==0)||(res->ph==0)) continue;
 364
 365                                         if ((trx0==trx1)||(try0==try1)) continue;
 366
 367                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
 368                                                  - opj_int_floordivpow2(trx0, res->pdx);
 369                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
 370                                                  - opj_int_floordivpow2(try0, res->pdy);
 371                                         pi->precno = prci + prcj * res->pw;
 372                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 373                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 374                                                 if (!pi->include[index]) {
 375                                                         pi->include[index] = 1;
 376                                                         return OPJ_TRUE;
 377                                                 }
 378 LABEL_SKIP:;
 379                                         }
 380                                 }
 381                         }
 382                 }
 383         }
 384
 385         return OPJ_FALSE;
 386 }
 387
 388 opj_bool opj_pi_next_pcrl(opj_pi_iterator_t * pi) {
 389         opj_pi_comp_t *comp = NULL;
 390         opj_pi_resolution_t *res = NULL;
 391         OPJ_UINT32 index = 0;
 392
 393         if (!pi->first) {
 394                 comp = &pi->comps[pi->compno];
 395                 goto LABEL_SKIP;
 396         } else {
 397                 OPJ_UINT32 compno, resno;
 398                 pi->first = 0;
 399                 pi->dx = 0;
 400                 pi->dy = 0;
 401                 for (compno = 0; compno < pi->numcomps; compno++) {
 402                         comp = &pi->comps[compno];
 403                         for (resno = 0; resno < comp->numresolutions; resno++) {
 404                                 OPJ_UINT32 dx, dy;
 405                                 res = &comp->resolutions[resno];
 406                                 dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
 407                                 dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
 408                                 pi->dx = !pi->dx ? dx : opj_int_min(pi->dx, dx);
 409                                 pi->dy = !pi->dy ? dy : opj_int_min(pi->dy, dy);
 410                         }
 411                 }
 412         }
 413         if (!pi->tp_on){
 414                         pi->poc.ty0 = pi->ty0;
 415                         pi->poc.tx0 = pi->tx0;
 416                         pi->poc.ty1 = pi->ty1;
 417                         pi->poc.tx1 = pi->tx1;
 418                 }
 419         for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
 420                 for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
 421                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 422                                 comp = &pi->comps[pi->compno];
 423                                 for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
 424                                         OPJ_UINT32 levelno;
 425                                         OPJ_INT32 trx0, try0;
 426                                         OPJ_INT32 trx1, try1;
 427                                         OPJ_UINT32 rpx, rpy;
 428                                         OPJ_INT32 prci, prcj;
 429                                         res = &comp->resolutions[pi->resno];
 430                                         levelno = comp->numresolutions - 1 - pi->resno;
 431                                         trx0 = opj_int_ceildiv(pi->tx0, comp->dx << levelno);
 432                                         try0 = opj_int_ceildiv(pi->ty0, comp->dy << levelno);
 433                                         trx1 = opj_int_ceildiv(pi->tx1, comp->dx << levelno);
 434                                         try1 = opj_int_ceildiv(pi->ty1, comp->dy << levelno);
 435                                         rpx = res->pdx + levelno;
 436                                         rpy = res->pdy + levelno;
 437                                         if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
 438                                                 continue;
 439                                         }
 440                                         if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
 441                                                 continue;
 442                                         }
 443
 444                                         if ((res->pw==0)||(res->ph==0)) continue;
 445
 446                                         if ((trx0==trx1)||(try0==try1)) continue;
 447
 448                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
 449                                                  - opj_int_floordivpow2(trx0, res->pdx);
 450                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
 451                                                  - opj_int_floordivpow2(try0, res->pdy);
 452                                         pi->precno = prci + prcj * res->pw;
 453                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 454                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 455                                                 if (!pi->include[index]) {
 456                                                         pi->include[index] = 1;
 457                                                         return OPJ_TRUE;
 458                                                 }
 459 LABEL_SKIP:;
 460                                         }
 461                                 }
 462                         }
 463                 }
 464         }
 465
 466         return OPJ_FALSE;
 467 }
 468
 469 opj_bool opj_pi_next_cprl(opj_pi_iterator_t * pi) {
 470         opj_pi_comp_t *comp = NULL;
 471         opj_pi_resolution_t *res = NULL;
 472         OPJ_UINT32 index = 0;
 473
 474         if (!pi->first) {
 475                 comp = &pi->comps[pi->compno];
 476                 goto LABEL_SKIP;
 477         } else {
 478                 pi->first = 0;
 479         }
 480
 481         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
 482                 OPJ_UINT32 resno;
 483                 comp = &pi->comps[pi->compno];
 484                 pi->dx = 0;
 485                 pi->dy = 0;
 486                 for (resno = 0; resno < comp->numresolutions; resno++) {
 487                         OPJ_UINT32 dx, dy;
 488                         res = &comp->resolutions[resno];
 489                         dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
 490                         dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
 491                         pi->dx = !pi->dx ? dx : opj_int_min(pi->dx, dx);
 492                         pi->dy = !pi->dy ? dy : opj_int_min(pi->dy, dy);
 493                 }
 494                 if (!pi->tp_on){
 495                         pi->poc.ty0 = pi->ty0;
 496                         pi->poc.tx0 = pi->tx0;
 497                         pi->poc.ty1 = pi->ty1;
 498                         pi->poc.tx1 = pi->tx1;
 499                 }
 500                 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
 501                         for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
 502                                 for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
 503                                         OPJ_UINT32 levelno;
 504                                         OPJ_INT32 trx0, try0;
 505                                         OPJ_INT32 trx1, try1;
 506                                         OPJ_UINT32 rpx, rpy;
 507                                         OPJ_INT32 prci, prcj;
 508                                         res = &comp->resolutions[pi->resno];
 509                                         levelno = comp->numresolutions - 1 - pi->resno;
 510                                         trx0 = opj_int_ceildiv(pi->tx0, comp->dx << levelno);
 511                                         try0 = opj_int_ceildiv(pi->ty0, comp->dy << levelno);
 512                                         trx1 = opj_int_ceildiv(pi->tx1, comp->dx << levelno);
 513                                         try1 = opj_int_ceildiv(pi->ty1, comp->dy << levelno);
 514                                         rpx = res->pdx + levelno;
 515                                         rpy = res->pdy + levelno;
 516                                         if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
 517                                                 continue;
 518                                         }
 519                                         if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
 520                                                 continue;
 521                                         }
 522
 523                                         if ((res->pw==0)||(res->ph==0)) continue;
 524
 525                                         if ((trx0==trx1)||(try0==try1)) continue;
 526
 527                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
 528                                                  - opj_int_floordivpow2(trx0, res->pdx);
 529                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
 530                                                  - opj_int_floordivpow2(try0, res->pdy);
 531                                         pi->precno = prci + prcj * res->pw;
 532                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
 533                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
 534                                                 if (!pi->include[index]) {
 535                                                         pi->include[index] = 1;
 536                                                         return OPJ_TRUE;
 537                                                 }
 538 LABEL_SKIP:;
 539                                         }
 540                                 }
 541                         }
 542                 }
 543         }
 544
 545         return OPJ_FALSE;
 546 }
 547
 548 void opj_get_encoding_parameters(       const opj_image_t *p_image,
 549                                     const opj_cp_t *p_cp,
 550                                     OPJ_UINT32 p_tileno,
 551                                     OPJ_INT32 * p_tx0,
 552                                     OPJ_INT32  * p_tx1,
 553                                     OPJ_INT32  * p_ty0,
 554                                     OPJ_INT32  * p_ty1,
 555                                     OPJ_UINT32 * p_dx_min,
 556                                     OPJ_UINT32 * p_dy_min,
 557                                     OPJ_UINT32 * p_max_prec,
 558                                     OPJ_UINT32 * p_max_res )
 559 {
 560         /* loop */
 561         OPJ_UINT32  compno, resno;
 562         /* pointers */
 563         const opj_tcp_v2_t *l_tcp = 00;
 564         const opj_tccp_t * l_tccp = 00;
 565         const opj_image_comp_t * l_img_comp = 00;
 566
 567         /* position in x and y of tile */
 568         OPJ_UINT32 p, q;
 569
 570         /* preconditions */
 571         assert(p_cp != 00);
 572         assert(p_image != 00);
 573         assert(p_tileno < p_cp->tw * p_cp->th);
 574
 575         /* initializations */
 576         l_tcp = &p_cp->tcps [p_tileno];
 577         l_img_comp = p_image->comps;
 578         l_tccp = l_tcp->tccps;
 579
 580         /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
 581         p = p_tileno % p_cp->tw;
 582         q = p_tileno / p_cp->tw;
 583
 584         /* find extent of tile */
 585         *p_tx0 = opj_int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
 586         *p_tx1 = opj_int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
 587         *p_ty0 = opj_int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
 588         *p_ty1 = opj_int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
 589
 590         /* max precision is 0 (can only grow) */
 591         *p_max_prec = 0;
 592         *p_max_res = 0;
 593
 594         /* take the largest value for dx_min and dy_min */
 595         *p_dx_min = 0x7fffffff;
 596         *p_dy_min  = 0x7fffffff;
 597
 598         for (compno = 0; compno < p_image->numcomps; ++compno) {
 599                 /* arithmetic variables to calculate */
 600                 OPJ_UINT32 l_level_no;
 601                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
 602                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
 603                 OPJ_UINT32 l_pdx, l_pdy;
 604                 OPJ_UINT32 l_pw, l_ph;
 605                 OPJ_UINT32 l_product;
 606                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
 607
 608                 l_tcx0 = opj_int_ceildiv(*p_tx0, l_img_comp->dx);
 609                 l_tcy0 = opj_int_ceildiv(*p_ty0, l_img_comp->dy);
 610                 l_tcx1 = opj_int_ceildiv(*p_tx1, l_img_comp->dx);
 611                 l_tcy1 = opj_int_ceildiv(*p_ty1, l_img_comp->dy);
 612
 613                 if (l_tccp->numresolutions > *p_max_res) {
 614                         *p_max_res = l_tccp->numresolutions;
 615                 }
 616
 617                 /* use custom size for precincts */
 618                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
 619                         OPJ_UINT32 l_dx, l_dy;
 620
 621                         /* precinct width and height */
 622                         l_pdx = l_tccp->prcw[resno];
 623                         l_pdy = l_tccp->prch[resno];
 624
 625                         l_dx = l_img_comp->dx * (1 << (l_pdx + l_tccp->numresolutions - 1 - resno));
 626                         l_dy = l_img_comp->dy * (1 << (l_pdy + l_tccp->numresolutions - 1 - resno));
 627
 628                         /* take the minimum size for dx for each comp and resolution */
 629                         *p_dx_min = opj_uint_min(*p_dx_min, l_dx);
 630                         *p_dy_min = opj_uint_min(*p_dy_min, l_dy);
 631
 632                         /* various calculations of extents */
 633                         l_level_no = l_tccp->numresolutions - 1 - resno;
 634
 635                         l_rx0 = opj_int_ceildivpow2(l_tcx0, l_level_no);
 636                         l_ry0 = opj_int_ceildivpow2(l_tcy0, l_level_no);
 637                         l_rx1 = opj_int_ceildivpow2(l_tcx1, l_level_no);
 638                         l_ry1 = opj_int_ceildivpow2(l_tcy1, l_level_no);
 639
 640                         l_px0 = opj_int_floordivpow2(l_rx0, l_pdx) << l_pdx;
 641                         l_py0 = opj_int_floordivpow2(l_ry0, l_pdy) << l_pdy;
 642                         l_px1 = opj_int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
 643
 644                         py1 = opj_int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
 645
 646                         l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
 647                         l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
 648
 649                         l_product = l_pw * l_ph;
 650
 651                         /* update precision */
 652                         if (l_product > *p_max_prec) {
 653                                 *p_max_prec = l_product;
 654                         }
 655                 }
 656                 ++l_img_comp;
 657                 ++l_tccp;
 658         }
 659 }
 660
 661
 662 void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
 663                                         const opj_cp_t *p_cp,
 664                                         OPJ_UINT32 tileno,
 665                                         OPJ_INT32 * p_tx0,
 666                                         OPJ_INT32 * p_tx1,
 667                                         OPJ_INT32 * p_ty0,
 668                                         OPJ_INT32 * p_ty1,
 669                                         OPJ_UINT32 * p_dx_min,
 670                                         OPJ_UINT32 * p_dy_min,
 671                                         OPJ_UINT32 * p_max_prec,
 672                                         OPJ_UINT32 * p_max_res,
 673                                         OPJ_UINT32 ** p_resolutions )
 674 {
 675         /* loop*/
 676         OPJ_UINT32 compno, resno;
 677
 678         /* pointers*/
 679         const opj_tcp_v2_t *tcp = 00;
 680         const opj_tccp_t * l_tccp = 00;
 681         const opj_image_comp_t * l_img_comp = 00;
 682
 683         /* to store l_dx, l_dy, w and h for each resolution and component.*/
 684         OPJ_UINT32 * lResolutionPtr;
 685
 686         /* position in x and y of tile*/
 687         OPJ_UINT32 p, q;
 688
 689         /* preconditions in debug*/
 690         assert(p_cp != 00);
 691         assert(p_image != 00);
 692         assert(tileno < p_cp->tw * p_cp->th);
 693
 694         /* initializations*/
 695         tcp = &p_cp->tcps [tileno];
 696         l_tccp = tcp->tccps;
 697         l_img_comp = p_image->comps;
 698
 699         /* position in x and y of tile*/
 700         p = tileno % p_cp->tw;
 701         q = tileno / p_cp->tw;
 702
 703         /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
 704         *p_tx0 = opj_int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
 705         *p_tx1 = opj_int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
 706         *p_ty0 = opj_int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
 707         *p_ty1 = opj_int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
 708
 709         /* max precision and resolution is 0 (can only grow)*/
 710         *p_max_prec = 0;
 711         *p_max_res = 0;
 712
 713         /* take the largest value for dx_min and dy_min*/
 714         *p_dx_min = 0x7fffffff;
 715         *p_dy_min = 0x7fffffff;
 716
 717         for (compno = 0; compno < p_image->numcomps; ++compno) {
 718                 /* aritmetic variables to calculate*/
 719                 OPJ_UINT32 l_level_no;
 720                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
 721                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
 722                 OPJ_UINT32 l_product;
 723                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
 724                 OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
 725
 726                 lResolutionPtr = p_resolutions[compno];
 727
 728                 l_tcx0 = opj_int_ceildiv(*p_tx0, l_img_comp->dx);
 729                 l_tcy0 = opj_int_ceildiv(*p_ty0, l_img_comp->dy);
 730                 l_tcx1 = opj_int_ceildiv(*p_tx1, l_img_comp->dx);
 731                 l_tcy1 = opj_int_ceildiv(*p_ty1, l_img_comp->dy);
 732
 733                 if (l_tccp->numresolutions > *p_max_res) {
 734                         *p_max_res = l_tccp->numresolutions;
 735                 }
 736
 737                 /* use custom size for precincts*/
 738                 l_level_no = l_tccp->numresolutions - 1;
 739                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
 740                         OPJ_UINT32 l_dx, l_dy;
 741
 742                         /* precinct width and height*/
 743                         l_pdx = l_tccp->prcw[resno];
 744                         l_pdy = l_tccp->prch[resno];
 745                         *lResolutionPtr++ = l_pdx;
 746                         *lResolutionPtr++ = l_pdy;
 747                         l_dx = l_img_comp->dx * (1 << (l_pdx + l_level_no));
 748                         l_dy = l_img_comp->dy * (1 << (l_pdy + l_level_no));
 749                         /* take the minimum size for l_dx for each comp and resolution*/
 750                         *p_dx_min = opj_int_min(*p_dx_min, l_dx);
 751                         *p_dy_min = opj_int_min(*p_dy_min, l_dy);
 752
 753                         /* various calculations of extents*/
 754                         l_rx0 = opj_int_ceildivpow2(l_tcx0, l_level_no);
 755                         l_ry0 = opj_int_ceildivpow2(l_tcy0, l_level_no);
 756                         l_rx1 = opj_int_ceildivpow2(l_tcx1, l_level_no);
 757                         l_ry1 = opj_int_ceildivpow2(l_tcy1, l_level_no);
 758                         l_px0 = opj_int_floordivpow2(l_rx0, l_pdx) << l_pdx;
 759                         l_py0 = opj_int_floordivpow2(l_ry0, l_pdy) << l_pdy;
 760                         l_px1 = opj_int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
 761                         py1 = opj_int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
 762                         l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
 763                         l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
 764                         *lResolutionPtr++ = l_pw;
 765                         *lResolutionPtr++ = l_ph;
 766                         l_product = l_pw * l_ph;
 767
 768             /* update precision*/
 769                         if (l_product > *p_max_prec) {
 770                                 *p_max_prec = l_product;
 771                         }
 772
 773                         --l_level_no;
 774                 }
 775                 ++l_tccp;
 776                 ++l_img_comp;
 777         }
 778 }
 779
 780 opj_pi_iterator_t * opj_pi_create(      const opj_image_t *image,
 781                                     const opj_cp_t *cp,
 782                                     OPJ_UINT32 tileno )
 783 {
 784         /* loop*/
 785         OPJ_UINT32 pino, compno;
 786         /* number of poc in the p_pi*/
 787         OPJ_UINT32 l_poc_bound;
 788
 789         /* pointers to tile coding parameters and components.*/
 790         opj_pi_iterator_t *l_pi = 00;
 791         opj_tcp_v2_t *tcp = 00;
 792         const opj_tccp_t *tccp = 00;
 793
 794         /* current packet iterator being allocated*/
 795         opj_pi_iterator_t *l_current_pi = 00;
 796
 797         /* preconditions in debug*/
 798         assert(cp != 00);
 799         assert(image != 00);
 800         assert(tileno < cp->tw * cp->th);
 801
 802         /* initializations*/
 803         tcp = &cp->tcps[tileno];
 804         l_poc_bound = tcp->numpocs+1;
 805
 806         /* memory allocations*/
 807         l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
 808         if (!l_pi) {
 809                 return NULL;
 810         }
 811         memset(l_pi,0,l_poc_bound * sizeof(opj_pi_iterator_t));
 812
 813         l_current_pi = l_pi;
 814         for (pino = 0; pino < l_poc_bound ; ++pino) {
 815
 816                 l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
 817                 if (! l_current_pi->comps) {
 818                         opj_pi_destroy(l_pi, l_poc_bound);
 819                         return NULL;
 820                 }
 821
 822                 l_current_pi->numcomps = image->numcomps;
 823                 memset(l_current_pi->comps,0,image->numcomps * sizeof(opj_pi_comp_t));
 824
 825                 for (compno = 0; compno < image->numcomps; ++compno) {
 826                         opj_pi_comp_t *comp = &l_current_pi->comps[compno];
 827
 828                         tccp = &tcp->tccps[compno];
 829
 830                         comp->resolutions = (opj_pi_resolution_t*) opj_malloc(tccp->numresolutions * sizeof(opj_pi_resolution_t));
 831                         if (!comp->resolutions) {
 832                                 opj_pi_destroy(l_pi, l_poc_bound);
 833                                 return 00;
 834                         }
 835
 836                         comp->numresolutions = tccp->numresolutions;
 837                         memset(comp->resolutions,0,tccp->numresolutions * sizeof(opj_pi_resolution_t));
 838                 }
 839                 ++l_current_pi;
 840         }
 841         return l_pi;
 842 }
 843
 844 void opj_pi_update_encode_poc_and_final (   opj_cp_t *p_cp,
 845                                             OPJ_UINT32 p_tileno,
 846                                             OPJ_INT32 p_tx0,
 847                                             OPJ_INT32 p_tx1,
 848                                             OPJ_INT32 p_ty0,
 849                                             OPJ_INT32 p_ty1,
 850                                             OPJ_UINT32 p_max_prec,
 851                                             OPJ_UINT32 p_max_res,
 852                                             OPJ_UINT32 p_dx_min,
 853                                             OPJ_UINT32 p_dy_min)
 854 {
 855         /* loop*/
 856         OPJ_UINT32 pino;
 857         /* tile coding parameter*/
 858         opj_tcp_v2_t *l_tcp = 00;
 859         /* current poc being updated*/
 860         opj_poc_t * l_current_poc = 00;
 861
 862         /* number of pocs*/
 863         OPJ_UINT32 l_poc_bound;
 864
 865         /* preconditions in debug*/
 866         assert(p_cp != 00);
 867         assert(p_tileno < p_cp->tw * p_cp->th);
 868
 869         /* initializations*/
 870         l_tcp = &p_cp->tcps [p_tileno];
 871         /* number of iterations in the loop */
 872         l_poc_bound = l_tcp->numpocs+1;
 873
 874         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
 875            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
 876         l_current_poc = l_tcp->pocs;
 877
 878         l_current_poc->compS = l_current_poc->compno0;
 879         l_current_poc->compE = l_current_poc->compno1;
 880         l_current_poc->resS = l_current_poc->resno0;
 881         l_current_poc->resE = l_current_poc->resno1;
 882         l_current_poc->layE = l_current_poc->layno1;
 883
 884         /* special treatment for the first element*/
 885         l_current_poc->layS = 0;
 886         l_current_poc->prg  = l_current_poc->prg1;
 887         l_current_poc->prcS = 0;
 888
 889         l_current_poc->prcE = p_max_prec;
 890         l_current_poc->txS = p_tx0;
 891         l_current_poc->txE = p_tx1;
 892         l_current_poc->tyS = p_ty0;
 893         l_current_poc->tyE = p_ty1;
 894         l_current_poc->dx = p_dx_min;
 895         l_current_poc->dy = p_dy_min;
 896
 897         ++ l_current_poc;
 898         for (pino = 1;pino < l_poc_bound ; ++pino) {
 899                 l_current_poc->compS = l_current_poc->compno0;
 900                 l_current_poc->compE= l_current_poc->compno1;
 901                 l_current_poc->resS = l_current_poc->resno0;
 902                 l_current_poc->resE = l_current_poc->resno1;
 903                 l_current_poc->layE = l_current_poc->layno1;
 904                 l_current_poc->prg  = l_current_poc->prg1;
 905                 l_current_poc->prcS = 0;
 906                 /* special treatment here different from the first element*/
 907                 l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
 908
 909                 l_current_poc->prcE = p_max_prec;
 910                 l_current_poc->txS = p_tx0;
 911                 l_current_poc->txE = p_tx1;
 912                 l_current_poc->tyS = p_ty0;
 913                 l_current_poc->tyE = p_ty1;
 914                 l_current_poc->dx = p_dx_min;
 915                 l_current_poc->dy = p_dy_min;
 916                 ++ l_current_poc;
 917         }
 918 }
 919
 920 void opj_pi_update_encode_not_poc (     opj_cp_t *p_cp,
 921                                     OPJ_UINT32 p_num_comps,
 922                                     OPJ_UINT32 p_tileno,
 923                                     OPJ_INT32 p_tx0,
 924                                     OPJ_INT32 p_tx1,
 925                                     OPJ_INT32 p_ty0,
 926                                     OPJ_INT32 p_ty1,
 927                                     OPJ_UINT32 p_max_prec,
 928                                     OPJ_UINT32 p_max_res,
 929                                     OPJ_UINT32 p_dx_min,
 930                                     OPJ_UINT32 p_dy_min)
 931 {
 932         /* loop*/
 933         OPJ_UINT32 pino;
 934         /* tile coding parameter*/
 935         opj_tcp_v2_t *l_tcp = 00;
 936         /* current poc being updated*/
 937         opj_poc_t * l_current_poc = 00;
 938         /* number of pocs*/
 939         OPJ_UINT32 l_poc_bound;
 940
 941         /* preconditions in debug*/
 942         assert(p_cp != 00);
 943         assert(p_tileno < p_cp->tw * p_cp->th);
 944
 945         /* initializations*/
 946         l_tcp = &p_cp->tcps [p_tileno];
 947
 948         /* number of iterations in the loop */
 949         l_poc_bound = l_tcp->numpocs+1;
 950
 951         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
 952            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
 953         l_current_poc = l_tcp->pocs;
 954
 955         for (pino = 0; pino < l_poc_bound ; ++pino) {
 956                 l_current_poc->compS = 0;
 957                 l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
 958                 l_current_poc->resS = 0;
 959                 l_current_poc->resE = p_max_res;
 960                 l_current_poc->layS = 0;
 961                 l_current_poc->layE = l_tcp->numlayers;
 962                 l_current_poc->prg  = l_tcp->prg;
 963                 l_current_poc->prcS = 0;
 964                 l_current_poc->prcE = p_max_prec;
 965                 l_current_poc->txS = p_tx0;
 966                 l_current_poc->txE = p_tx1;
 967                 l_current_poc->tyS = p_ty0;
 968                 l_current_poc->tyE = p_ty1;
 969                 l_current_poc->dx = p_dx_min;
 970                 l_current_poc->dy = p_dy_min;
 971                 ++ l_current_poc;
 972         }
 973 }
 974
 975 void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
 976                                opj_tcp_v2_t * p_tcp,
 977                                OPJ_UINT32 p_max_precision,
 978                                OPJ_UINT32 p_max_res)
 979 {
 980         /* loop*/
 981         OPJ_UINT32 pino;
 982
 983         /* encoding prameters to set*/
 984         OPJ_UINT32 l_bound;
 985
 986         opj_pi_iterator_t * l_current_pi = 00;
 987         opj_poc_t* l_current_poc = 0;
 988
 989         /* preconditions in debug*/
 990         assert(p_pi != 00);
 991         assert(p_tcp != 00);
 992
 993         /* initializations*/
 994         l_bound = p_tcp->numpocs+1;
 995         l_current_pi = p_pi;
 996         l_current_poc = p_tcp->pocs;
 997
 998         for     (pino = 0;pino<l_bound;++pino) {
 999                 l_current_pi->poc.prg = l_current_poc->prg;
1000                 l_current_pi->first = 1;
1001
1002                 l_current_pi->poc.resno0 = l_current_poc->resno0;
1003                 l_current_pi->poc.compno0 = l_current_poc->compno0;
1004                 l_current_pi->poc.layno0 = 0;
1005                 l_current_pi->poc.precno0 = 0;
1006                 l_current_pi->poc.resno1 = l_current_poc->resno1;
1007                 l_current_pi->poc.compno1 = l_current_poc->compno1;
1008                 l_current_pi->poc.layno1 = l_current_poc->layno1;
1009                 l_current_pi->poc.precno1 = p_max_precision;
1010                 ++l_current_pi;
1011                 ++l_current_poc;
1012         }
1013 }
1014
1015 void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
1016                                    opj_tcp_v2_t * p_tcp,
1017                                    OPJ_UINT32 p_max_precision,
1018                                    OPJ_UINT32 p_max_res)
1019 {
1020         /* loop*/
1021         OPJ_UINT32 pino;
1022
1023         /* encoding prameters to set*/
1024         OPJ_UINT32 l_bound;
1025
1026         opj_pi_iterator_t * l_current_pi = 00;
1027         /* preconditions in debug*/
1028         assert(p_tcp != 00);
1029         assert(p_pi != 00);
1030
1031         /* initializations*/
1032         l_bound = p_tcp->numpocs+1;
1033         l_current_pi = p_pi;
1034
1035         for (pino = 0;pino<l_bound;++pino) {
1036                 l_current_pi->poc.prg = p_tcp->prg;
1037                 l_current_pi->first = 1;
1038                 l_current_pi->poc.resno0 = 0;
1039                 l_current_pi->poc.compno0 = 0;
1040                 l_current_pi->poc.layno0 = 0;
1041                 l_current_pi->poc.precno0 = 0;
1042                 l_current_pi->poc.resno1 = p_max_res;
1043                 l_current_pi->poc.compno1 = l_current_pi->numcomps;
1044                 l_current_pi->poc.layno1 = p_tcp->numlayers;
1045                 l_current_pi->poc.precno1 = p_max_precision;
1046                 ++l_current_pi;
1047         }
1048 }
1049
1050
1051
1052 opj_bool opj_pi_check_next_level(       OPJ_INT32 pos,
1053                                                                 opj_cp_t *cp,
1054                                                                 OPJ_UINT32 tileno,
1055                                                                 OPJ_UINT32 pino,
1056                                                                 const OPJ_CHAR *prog)
1057 {
1058         OPJ_INT32 i;
1059         opj_tcp_v2_t *tcps =&cp->tcps[tileno];
1060         opj_poc_t *tcp = &tcps->pocs[pino];
1061
1062         if(pos>=0){
1063                 for(i=pos;pos>=0;i--){
1064                         switch(prog[i]){
1065                     case 'R':
1066                             if(tcp->res_t==tcp->resE){
1067                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1068                                             return OPJ_TRUE;
1069                                     }else{
1070                                             return OPJ_FALSE;
1071                                     }
1072                             }else{
1073                                     return OPJ_TRUE;
1074                             }
1075                             break;
1076                     case 'C':
1077                             if(tcp->comp_t==tcp->compE){
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 'L':
1088                             if(tcp->lay_t==tcp->layE){
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 'P':
1099                             switch(tcp->prg){
1100                                     case LRCP||RLCP:
1101                                             if(tcp->prc_t == tcp->prcE){
1102                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1103                                                             return OPJ_TRUE;
1104                                                     }else{
1105                                                             return OPJ_FALSE;
1106                                                     }
1107                                             }else{
1108                                                     return OPJ_TRUE;
1109                                             }
1110                                             break;
1111                             default:
1112                                     if(tcp->tx0_t == tcp->txE){
1113                                             /*TY*/
1114                                             if(tcp->ty0_t == tcp->tyE){
1115                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1116                                                             return OPJ_TRUE;
1117                                                     }else{
1118                                                             return OPJ_FALSE;
1119                                                     }
1120                                             }else{
1121                                                     return OPJ_TRUE;
1122                                             }/*TY*/
1123                                     }else{
1124                                             return OPJ_TRUE;
1125                                     }
1126                                     break;
1127                             }/*end case P*/
1128                     }/*end switch*/
1129                 }/*end for*/
1130         }/*end if*/
1131         return OPJ_FALSE;
1132 }
1133
1134
1135 /*
1136 ==========================================================
1137    Packet iterator interface
1138 ==========================================================
1139 */
1140 opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1141                                                                                 opj_cp_t *p_cp,
1142                                                                                 OPJ_UINT32 p_tile_no)
1143 {
1144         /* loop */
1145         OPJ_UINT32 pino;
1146         OPJ_UINT32 compno, resno;
1147
1148         /* to store w, h, dx and dy fro all components and resolutions */
1149         OPJ_UINT32 * l_tmp_data;
1150         OPJ_UINT32 ** l_tmp_ptr;
1151
1152         /* encoding prameters to set */
1153         OPJ_UINT32 l_max_res;
1154         OPJ_UINT32 l_max_prec;
1155         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1156         OPJ_UINT32 l_dx_min,l_dy_min;
1157         OPJ_UINT32 l_bound;
1158         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1159         OPJ_UINT32 l_data_stride;
1160
1161         /* pointers */
1162         opj_pi_iterator_t *l_pi = 00;
1163         opj_tcp_v2_t *l_tcp = 00;
1164         const opj_tccp_t *l_tccp = 00;
1165         opj_pi_comp_t *l_current_comp = 00;
1166         opj_image_comp_t * l_img_comp = 00;
1167         opj_pi_iterator_t * l_current_pi = 00;
1168         OPJ_UINT32 * l_encoding_value_ptr = 00;
1169
1170         /* preconditions in debug */
1171         assert(p_cp != 00);
1172         assert(p_image != 00);
1173         assert(p_tile_no < p_cp->tw * p_cp->th);
1174
1175         /* initializations */
1176         l_tcp = &p_cp->tcps[p_tile_no];
1177         l_bound = l_tcp->numpocs+1;
1178
1179         l_data_stride = 4 * J2K_MAXRLVLS;
1180         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1181                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1182         if
1183                 (! l_tmp_data)
1184         {
1185                 return 00;
1186         }
1187         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1188                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1189         if
1190                 (! l_tmp_ptr)
1191         {
1192                 opj_free(l_tmp_data);
1193                 return 00;
1194         }
1195
1196         /* memory allocation for pi */
1197         l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1198         if (!l_pi) {
1199                 opj_free(l_tmp_data);
1200                 opj_free(l_tmp_ptr);
1201                 return 00;
1202         }
1203
1204         l_encoding_value_ptr = l_tmp_data;
1205         /* update pointer array */
1206         for
1207                 (compno = 0; compno < p_image->numcomps; ++compno)
1208         {
1209                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1210                 l_encoding_value_ptr += l_data_stride;
1211         }
1212         /* get encoding parameters */
1213         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);
1214
1215         /* step calculations */
1216         l_step_p = 1;
1217         l_step_c = l_max_prec * l_step_p;
1218         l_step_r = p_image->numcomps * l_step_c;
1219         l_step_l = l_max_res * l_step_r;
1220
1221         /* set values for first packet iterator */
1222         l_current_pi = l_pi;
1223
1224         /* memory allocation for include */
1225         l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
1226         if
1227                 (!l_current_pi->include)
1228         {
1229                 opj_free(l_tmp_data);
1230                 opj_free(l_tmp_ptr);
1231                 opj_pi_destroy(l_pi, l_bound);
1232                 return 00;
1233         }
1234         memset(l_current_pi->include,0, (l_tcp->numlayers + 1) * l_step_l* sizeof(OPJ_INT16));
1235
1236         /* special treatment for the first packet iterator */
1237         l_current_comp = l_current_pi->comps;
1238         l_img_comp = p_image->comps;
1239         l_tccp = l_tcp->tccps;
1240
1241         l_current_pi->tx0 = l_tx0;
1242         l_current_pi->ty0 = l_ty0;
1243         l_current_pi->tx1 = l_tx1;
1244         l_current_pi->ty1 = l_ty1;
1245
1246         /*l_current_pi->dx = l_img_comp->dx;*/
1247         /*l_current_pi->dy = l_img_comp->dy;*/
1248
1249         l_current_pi->step_p = l_step_p;
1250         l_current_pi->step_c = l_step_c;
1251         l_current_pi->step_r = l_step_r;
1252         l_current_pi->step_l = l_step_l;
1253
1254         /* allocation for components and number of components has already been calculated by opj_pi_create */
1255         for
1256                 (compno = 0; compno < l_current_pi->numcomps; ++compno)
1257         {
1258                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1259                 l_encoding_value_ptr = l_tmp_ptr[compno];
1260
1261                 l_current_comp->dx = l_img_comp->dx;
1262                 l_current_comp->dy = l_img_comp->dy;
1263                 /* resolutions have already been initialized */
1264                 for
1265                         (resno = 0; resno < l_current_comp->numresolutions; resno++)
1266                 {
1267                         l_res->pdx = *(l_encoding_value_ptr++);
1268                         l_res->pdy = *(l_encoding_value_ptr++);
1269                         l_res->pw =  *(l_encoding_value_ptr++);
1270                         l_res->ph =  *(l_encoding_value_ptr++);
1271                         ++l_res;
1272                 }
1273                 ++l_current_comp;
1274                 ++l_img_comp;
1275                 ++l_tccp;
1276         }
1277         ++l_current_pi;
1278
1279         for
1280                 (pino = 1 ; pino<l_bound ; ++pino )
1281         {
1282                 opj_pi_comp_t *l_current_comp = l_current_pi->comps;
1283                 opj_image_comp_t * l_img_comp = p_image->comps;
1284                 l_tccp = l_tcp->tccps;
1285
1286                 l_current_pi->tx0 = l_tx0;
1287                 l_current_pi->ty0 = l_ty0;
1288                 l_current_pi->tx1 = l_tx1;
1289                 l_current_pi->ty1 = l_ty1;
1290                 /*l_current_pi->dx = l_dx_min;*/
1291                 /*l_current_pi->dy = l_dy_min;*/
1292                 l_current_pi->step_p = l_step_p;
1293                 l_current_pi->step_c = l_step_c;
1294                 l_current_pi->step_r = l_step_r;
1295                 l_current_pi->step_l = l_step_l;
1296
1297                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1298                 for
1299                         (compno = 0; compno < l_current_pi->numcomps; ++compno)
1300                 {
1301                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1302                         l_encoding_value_ptr = l_tmp_ptr[compno];
1303
1304                         l_current_comp->dx = l_img_comp->dx;
1305                         l_current_comp->dy = l_img_comp->dy;
1306                         /* resolutions have already been initialized */
1307                         for
1308                                 (resno = 0; resno < l_current_comp->numresolutions; resno++)
1309                         {
1310                                 l_res->pdx = *(l_encoding_value_ptr++);
1311                                 l_res->pdy = *(l_encoding_value_ptr++);
1312                                 l_res->pw =  *(l_encoding_value_ptr++);
1313                                 l_res->ph =  *(l_encoding_value_ptr++);
1314                                 ++l_res;
1315                         }
1316                         ++l_current_comp;
1317                         ++l_img_comp;
1318                         ++l_tccp;
1319                 }
1320                 /* special treatment*/
1321                 l_current_pi->include = (l_current_pi-1)->include;
1322                 ++l_current_pi;
1323         }
1324         opj_free(l_tmp_data);
1325         l_tmp_data = 00;
1326         opj_free(l_tmp_ptr);
1327         l_tmp_ptr = 00;
1328         if
1329                 (l_tcp->POC)
1330         {
1331                 opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
1332         }
1333         else
1334         {
1335                 opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
1336         }
1337         return l_pi;
1338 }
1339
1340
1341
1342 opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1343                                             opj_cp_t *p_cp,
1344                                             OPJ_UINT32 p_tile_no,
1345                                             J2K_T2_MODE p_t2_mode )
1346 {
1347         /* loop*/
1348         OPJ_UINT32 pino;
1349         OPJ_UINT32 compno, resno;
1350
1351         /* to store w, h, dx and dy fro all components and resolutions*/
1352         OPJ_UINT32 * l_tmp_data;
1353         OPJ_UINT32 ** l_tmp_ptr;
1354
1355         /* encoding prameters to set*/
1356         OPJ_UINT32 l_max_res;
1357         OPJ_UINT32 l_max_prec;
1358         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1359         OPJ_UINT32 l_dx_min,l_dy_min;
1360         OPJ_UINT32 l_bound;
1361         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1362         OPJ_UINT32 l_data_stride;
1363
1364         /* pointers*/
1365         opj_pi_iterator_t *l_pi = 00;
1366         opj_tcp_v2_t *l_tcp = 00;
1367         const opj_tccp_t *l_tccp = 00;
1368         opj_pi_comp_t *l_current_comp = 00;
1369         opj_image_comp_t * l_img_comp = 00;
1370         opj_pi_iterator_t * l_current_pi = 00;
1371         OPJ_UINT32 * l_encoding_value_ptr = 00;
1372
1373         /* preconditions in debug*/
1374         assert(p_cp != 00);
1375         assert(p_image != 00);
1376         assert(p_tile_no < p_cp->tw * p_cp->th);
1377
1378         /* initializations*/
1379         l_tcp = &p_cp->tcps[p_tile_no];
1380         l_bound = l_tcp->numpocs+1;
1381
1382         l_data_stride = 4 * J2K_MAXRLVLS;
1383         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1384                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1385         if (! l_tmp_data) {
1386                 return 00;
1387         }
1388
1389         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1390                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1391         if (! l_tmp_ptr) {
1392                 opj_free(l_tmp_data);
1393                 return 00;
1394         }
1395
1396         /* memory allocation for pi*/
1397         l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
1398         if (!l_pi) {
1399                 opj_free(l_tmp_data);
1400                 opj_free(l_tmp_ptr);
1401                 return 00;
1402         }
1403
1404         l_encoding_value_ptr = l_tmp_data;
1405         /* update pointer array*/
1406         for (compno = 0; compno < p_image->numcomps; ++compno) {
1407                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1408                 l_encoding_value_ptr += l_data_stride;
1409         }
1410
1411         /* get encoding parameters*/
1412         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);
1413
1414         /* step calculations*/
1415         l_step_p = 1;
1416         l_step_c = l_max_prec * l_step_p;
1417         l_step_r = p_image->numcomps * l_step_c;
1418         l_step_l = l_max_res * l_step_r;
1419
1420         /* set values for first packet iterator*/
1421         l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
1422         l_current_pi = l_pi;
1423
1424         /* memory allocation for include*/
1425         l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
1426         if (!l_current_pi->include) {
1427                 opj_free(l_tmp_data);
1428                 opj_free(l_tmp_ptr);
1429                 opj_pi_destroy(l_pi, l_bound);
1430                 return 00;
1431         }
1432         memset(l_current_pi->include,0,l_tcp->numlayers * l_step_l* sizeof(OPJ_INT16));
1433
1434         /* special treatment for the first packet iterator*/
1435         l_current_comp = l_current_pi->comps;
1436         l_img_comp = p_image->comps;
1437         l_tccp = l_tcp->tccps;
1438         l_current_pi->tx0 = l_tx0;
1439         l_current_pi->ty0 = l_ty0;
1440         l_current_pi->tx1 = l_tx1;
1441         l_current_pi->ty1 = l_ty1;
1442         l_current_pi->dx = l_dx_min;
1443         l_current_pi->dy = l_dy_min;
1444         l_current_pi->step_p = l_step_p;
1445         l_current_pi->step_c = l_step_c;
1446         l_current_pi->step_r = l_step_r;
1447         l_current_pi->step_l = l_step_l;
1448
1449         /* allocation for components and number of components has already been calculated by opj_pi_create */
1450         for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1451                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1452                 l_encoding_value_ptr = l_tmp_ptr[compno];
1453
1454                 l_current_comp->dx = l_img_comp->dx;
1455                 l_current_comp->dy = l_img_comp->dy;
1456
1457                 /* resolutions have already been initialized */
1458                 for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1459                         l_res->pdx = *(l_encoding_value_ptr++);
1460                         l_res->pdy = *(l_encoding_value_ptr++);
1461                         l_res->pw =  *(l_encoding_value_ptr++);
1462                         l_res->ph =  *(l_encoding_value_ptr++);
1463                         ++l_res;
1464                 }
1465
1466                 ++l_current_comp;
1467                 ++l_img_comp;
1468                 ++l_tccp;
1469         }
1470         ++l_current_pi;
1471
1472         for (pino = 1 ; pino<l_bound ; ++pino ) {
1473                 opj_pi_comp_t *l_current_comp = l_current_pi->comps;
1474                 opj_image_comp_t * l_img_comp = p_image->comps;
1475                 l_tccp = l_tcp->tccps;
1476
1477                 l_current_pi->tx0 = l_tx0;
1478                 l_current_pi->ty0 = l_ty0;
1479                 l_current_pi->tx1 = l_tx1;
1480                 l_current_pi->ty1 = l_ty1;
1481                 l_current_pi->dx = l_dx_min;
1482                 l_current_pi->dy = l_dy_min;
1483                 l_current_pi->step_p = l_step_p;
1484                 l_current_pi->step_c = l_step_c;
1485                 l_current_pi->step_r = l_step_r;
1486                 l_current_pi->step_l = l_step_l;
1487
1488                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1489                 for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1490                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1491                         l_encoding_value_ptr = l_tmp_ptr[compno];
1492
1493                         l_current_comp->dx = l_img_comp->dx;
1494                         l_current_comp->dy = l_img_comp->dy;
1495                         /* resolutions have already been initialized */
1496                         for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1497                                 l_res->pdx = *(l_encoding_value_ptr++);
1498                                 l_res->pdy = *(l_encoding_value_ptr++);
1499                                 l_res->pw =  *(l_encoding_value_ptr++);
1500                                 l_res->ph =  *(l_encoding_value_ptr++);
1501                                 ++l_res;
1502                         }
1503                         ++l_current_comp;
1504                         ++l_img_comp;
1505                         ++l_tccp;
1506                 }
1507
1508                 /* special treatment*/
1509                 l_current_pi->include = (l_current_pi-1)->include;
1510                 ++l_current_pi;
1511         }
1512
1513         opj_free(l_tmp_data);
1514         l_tmp_data = 00;
1515         opj_free(l_tmp_ptr);
1516         l_tmp_ptr = 00;
1517
1518         if (l_tcp->POC && ( p_cp->m_specific_param.m_enc.m_cinema || p_t2_mode == FINAL_PASS)) {
1519                 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);
1520         }
1521         else {
1522                 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);
1523         }
1524
1525         return l_pi;
1526 }
1527
1528 void opj_pi_create_encode(      opj_pi_iterator_t *pi,
1529                                                         opj_cp_t *cp,
1530                                                         OPJ_UINT32 tileno,
1531                                                         OPJ_UINT32 pino,
1532                                                         OPJ_UINT32 tpnum,
1533                                                         OPJ_INT32 tppos,
1534                                                         J2K_T2_MODE t2_mode)
1535 {
1536         const OPJ_CHAR *prog;
1537         OPJ_INT32 i;
1538         OPJ_UINT32 incr_top=1,resetX=0;
1539         opj_tcp_v2_t *tcps =&cp->tcps[tileno];
1540         opj_poc_t *tcp= &tcps->pocs[pino];
1541
1542         prog = opj_j2k_convert_progression_order(tcp->prg);
1543
1544         pi[pino].first = 1;
1545         pi[pino].poc.prg = tcp->prg;
1546
1547         if(!(cp->m_specific_param.m_enc.m_tp_on && ((!cp->m_specific_param.m_enc.m_cinema && (t2_mode == FINAL_PASS)) || cp->m_specific_param.m_enc.m_cinema))){
1548                 pi[pino].poc.resno0 = tcp->resS;
1549                 pi[pino].poc.resno1 = tcp->resE;
1550                 pi[pino].poc.compno0 = tcp->compS;
1551                 pi[pino].poc.compno1 = tcp->compE;
1552                 pi[pino].poc.layno0 = tcp->layS;
1553                 pi[pino].poc.layno1 = tcp->layE;
1554                 pi[pino].poc.precno0 = tcp->prcS;
1555                 pi[pino].poc.precno1 = tcp->prcE;
1556                 pi[pino].poc.tx0 = tcp->txS;
1557                 pi[pino].poc.ty0 = tcp->tyS;
1558                 pi[pino].poc.tx1 = tcp->txE;
1559                 pi[pino].poc.ty1 = tcp->tyE;
1560         }else {
1561                 for(i=tppos+1;i<4;i++){
1562                         switch(prog[i]){
1563                         case 'R':
1564                                 pi[pino].poc.resno0 = tcp->resS;
1565                                 pi[pino].poc.resno1 = tcp->resE;
1566                                 break;
1567                         case 'C':
1568                                 pi[pino].poc.compno0 = tcp->compS;
1569                                 pi[pino].poc.compno1 = tcp->compE;
1570                                 break;
1571                         case 'L':
1572                                 pi[pino].poc.layno0 = tcp->layS;
1573                                 pi[pino].poc.layno1 = tcp->layE;
1574                                 break;
1575                         case 'P':
1576                                 switch(tcp->prg){
1577                                 case LRCP:
1578                                 case RLCP:
1579                                         pi[pino].poc.precno0 = tcp->prcS;
1580                                         pi[pino].poc.precno1 = tcp->prcE;
1581                                         break;
1582                                 default:
1583                                         pi[pino].poc.tx0 = tcp->txS;
1584                                         pi[pino].poc.ty0 = tcp->tyS;
1585                                         pi[pino].poc.tx1 = tcp->txE;
1586                                         pi[pino].poc.ty1 = tcp->tyE;
1587                                         break;
1588                                 }
1589                                 break;
1590                         }
1591                 }
1592
1593                 if(tpnum==0){
1594                         for(i=tppos;i>=0;i--){
1595                                 switch(prog[i]){
1596                                 case 'C':
1597                                         tcp->comp_t = tcp->compS;
1598                                         pi[pino].poc.compno0 = tcp->comp_t;
1599                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1600                                         tcp->comp_t+=1;
1601                                         break;
1602                                 case 'R':
1603                                         tcp->res_t = tcp->resS;
1604                                         pi[pino].poc.resno0 = tcp->res_t;
1605                                         pi[pino].poc.resno1 = tcp->res_t+1;
1606                                         tcp->res_t+=1;
1607                                         break;
1608                                 case 'L':
1609                                         tcp->lay_t = tcp->layS;
1610                                         pi[pino].poc.layno0 = tcp->lay_t;
1611                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1612                                         tcp->lay_t+=1;
1613                                         break;
1614                                 case 'P':
1615                                         switch(tcp->prg){
1616                                         case LRCP:
1617                                         case RLCP:
1618                                                 tcp->prc_t = tcp->prcS;
1619                                                 pi[pino].poc.precno0 = tcp->prc_t;
1620                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1621                                                 tcp->prc_t+=1;
1622                                                 break;
1623                                         default:
1624                                                 tcp->tx0_t = tcp->txS;
1625                                                 tcp->ty0_t = tcp->tyS;
1626                                                 pi[pino].poc.tx0 = tcp->tx0_t;
1627                                                 pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
1628                                                 pi[pino].poc.ty0 = tcp->ty0_t;
1629                                                 pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
1630                                                 tcp->tx0_t = pi[pino].poc.tx1;
1631                                                 tcp->ty0_t = pi[pino].poc.ty1;
1632                                                 break;
1633                                         }
1634                                         break;
1635                                 }
1636                         }
1637                         incr_top=1;
1638                 }else{
1639                         for(i=tppos;i>=0;i--){
1640                                 switch(prog[i]){
1641                                 case 'C':
1642                                         pi[pino].poc.compno0 = tcp->comp_t-1;
1643                                         pi[pino].poc.compno1 = tcp->comp_t;
1644                                         break;
1645                                 case 'R':
1646                                         pi[pino].poc.resno0 = tcp->res_t-1;
1647                                         pi[pino].poc.resno1 = tcp->res_t;
1648                                         break;
1649                                 case 'L':
1650                                         pi[pino].poc.layno0 = tcp->lay_t-1;
1651                                         pi[pino].poc.layno1 = tcp->lay_t;
1652                                         break;
1653                                 case 'P':
1654                                         switch(tcp->prg){
1655                                         case LRCP:
1656                                         case RLCP:
1657                                                 pi[pino].poc.precno0 = tcp->prc_t-1;
1658                                                 pi[pino].poc.precno1 = tcp->prc_t;
1659                                                 break;
1660                                         default:
1661                                                 pi[pino].poc.tx0 = tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx);
1662                                                 pi[pino].poc.tx1 = tcp->tx0_t ;
1663                                                 pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
1664                                                 pi[pino].poc.ty1 = tcp->ty0_t ;
1665                                                 break;
1666                                         }
1667                                         break;
1668                                 }
1669                                 if(incr_top==1){
1670                                         switch(prog[i]){
1671                                         case 'R':
1672                                                 if(tcp->res_t==tcp->resE){
1673                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1674                                                                 tcp->res_t = tcp->resS;
1675                                                                 pi[pino].poc.resno0 = tcp->res_t;
1676                                                                 pi[pino].poc.resno1 = tcp->res_t+1;
1677                                                                 tcp->res_t+=1;
1678                                                                 incr_top=1;
1679                                                         }else{
1680                                                                 incr_top=0;
1681                                                         }
1682                                                 }else{
1683                                                         pi[pino].poc.resno0 = tcp->res_t;
1684                                                         pi[pino].poc.resno1 = tcp->res_t+1;
1685                                                         tcp->res_t+=1;
1686                                                         incr_top=0;
1687                                                 }
1688                                                 break;
1689                                         case 'C':
1690                                                 if(tcp->comp_t ==tcp->compE){
1691                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1692                                                                 tcp->comp_t = tcp->compS;
1693                                                                 pi[pino].poc.compno0 = tcp->comp_t;
1694                                                                 pi[pino].poc.compno1 = tcp->comp_t+1;
1695                                                                 tcp->comp_t+=1;
1696                                                                 incr_top=1;
1697                                                         }else{
1698                                                                 incr_top=0;
1699                                                         }
1700                                                 }else{
1701                                                         pi[pino].poc.compno0 = tcp->comp_t;
1702                                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1703                                                         tcp->comp_t+=1;
1704                                                         incr_top=0;
1705                                                 }
1706                                                 break;
1707                                         case 'L':
1708                                                 if(tcp->lay_t == tcp->layE){
1709                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1710                                                                 tcp->lay_t = tcp->layS;
1711                                                                 pi[pino].poc.layno0 = tcp->lay_t;
1712                                                                 pi[pino].poc.layno1 = tcp->lay_t+1;
1713                                                                 tcp->lay_t+=1;
1714                                                                 incr_top=1;
1715                                                         }else{
1716                                                                 incr_top=0;
1717                                                         }
1718                                                 }else{
1719                                                         pi[pino].poc.layno0 = tcp->lay_t;
1720                                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1721                                                         tcp->lay_t+=1;
1722                                                         incr_top=0;
1723                                                 }
1724                                                 break;
1725                                         case 'P':
1726                                                 switch(tcp->prg){
1727                                                 case LRCP:
1728                                                 case RLCP:
1729                                                         if(tcp->prc_t == tcp->prcE){
1730                                                                 if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1731                                                                         tcp->prc_t = tcp->prcS;
1732                                                                         pi[pino].poc.precno0 = tcp->prc_t;
1733                                                                         pi[pino].poc.precno1 = tcp->prc_t+1;
1734                                                                         tcp->prc_t+=1;
1735                                                                         incr_top=1;
1736                                                                 }else{
1737                                                                         incr_top=0;
1738                                                                 }
1739                                                         }else{
1740                                                                 pi[pino].poc.precno0 = tcp->prc_t;
1741                                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1742                                                                 tcp->prc_t+=1;
1743                                                                 incr_top=0;
1744                                                         }
1745                                                         break;
1746                                                 default:
1747                                                         if(tcp->tx0_t >= tcp->txE){
1748                                                                 if(tcp->ty0_t >= tcp->tyE){
1749                                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1750                                                                                 tcp->ty0_t = tcp->tyS;
1751                                                                                 pi[pino].poc.ty0 = tcp->ty0_t;
1752                                                                                 pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
1753                                                                                 tcp->ty0_t = pi[pino].poc.ty1;
1754                                                                                 incr_top=1;resetX=1;
1755                                                                         }else{
1756                                                                                 incr_top=0;resetX=0;
1757                                                                         }
1758                                                                 }else{
1759                                                                         pi[pino].poc.ty0 = tcp->ty0_t;
1760                                                                         pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
1761                                                                         tcp->ty0_t = pi[pino].poc.ty1;
1762                                                                         incr_top=0;resetX=1;
1763                                                                 }
1764                                                                 if(resetX==1){
1765                                                                         tcp->tx0_t = tcp->txS;
1766                                                                         pi[pino].poc.tx0 = tcp->tx0_t;
1767                                                                         pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
1768                                                                         tcp->tx0_t = pi[pino].poc.tx1;
1769                                                                 }
1770                                                         }else{
1771                                                                 pi[pino].poc.tx0 = tcp->tx0_t;
1772                                                                 pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
1773                                                                 tcp->tx0_t = pi[pino].poc.tx1;
1774                                                                 incr_top=0;
1775                                                         }
1776                                                         break;
1777                                                 }
1778                                                 break;
1779                                         }
1780                                 }
1781                         }
1782                 }
1783         }
1784 }
1785
1786 void opj_pi_destroy(opj_pi_iterator_t *p_pi,
1787                     OPJ_UINT32 p_nb_elements)
1788 {
1789         OPJ_UINT32 compno, pino;
1790         opj_pi_iterator_t *l_current_pi = p_pi;
1791     if (p_pi) {
1792                 if (p_pi->include) {
1793                         opj_free(p_pi->include);
1794                         p_pi->include = 00;
1795                 }
1796                 for (pino = 0; pino < p_nb_elements; ++pino){
1797                         if(l_current_pi->comps) {
1798                                 opj_pi_comp_t *l_current_component = l_current_pi->comps;
1799                 for (compno = 0; compno < l_current_pi->numcomps; compno++){
1800                     if(l_current_component->resolutions) {
1801                                                 opj_free(l_current_component->resolutions);
1802                                                 l_current_component->resolutions = 00;
1803                                         }
1804
1805                                         ++l_current_component;
1806                                 }
1807                                 opj_free(l_current_pi->comps);
1808                                 l_current_pi->comps = 0;
1809                         }
1810                         ++l_current_pi;
1811                 }
1812                 opj_free(p_pi);
1813         }
1814 }
1815
1816
1817
1818 void opj_pi_update_encoding_parameters( const opj_image_t *p_image,
1819                                         opj_cp_t *p_cp,
1820                                         OPJ_UINT32 p_tile_no )
1821 {
1822         /* encoding parameters to set */
1823         OPJ_UINT32 l_max_res;
1824         OPJ_UINT32 l_max_prec;
1825         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1826         OPJ_UINT32 l_dx_min,l_dy_min;
1827
1828         /* pointers */
1829         opj_tcp_v2_t *l_tcp = 00;
1830
1831         /* preconditions */
1832         assert(p_cp != 00);
1833         assert(p_image != 00);
1834         assert(p_tile_no < p_cp->tw * p_cp->th);
1835
1836         l_tcp = &(p_cp->tcps[p_tile_no]);
1837
1838         /* get encoding parameters */
1839         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);
1840
1841         if (l_tcp->POC) {
1842                 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);
1843         }
1844         else {
1845                 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);
1846         }
1847 }
1848
1849 opj_bool opj_pi_next(opj_pi_iterator_t * pi) {
1850         switch (pi->poc.prg) {
1851                 case LRCP:
1852                         return opj_pi_next_lrcp(pi);
1853                 case RLCP:
1854                         return opj_pi_next_rlcp(pi);
1855                 case RPCL:
1856                         return opj_pi_next_rpcl(pi);
1857                 case PCRL:
1858                         return opj_pi_next_pcrl(pi);
1859                 case CPRL:
1860                         return opj_pi_next_cprl(pi);
1861                 case PROG_UNKNOWN:
1862                         return OPJ_FALSE;
1863         }
1864
1865         return OPJ_FALSE;
1866 }