libopenjpeg/tcd.c

   1 /*
   2  * Copyright (c) 2001-2002, David Janssens
   3  * Copyright (c) 2002-2004, Yannick Verschueren
   4  * Copyright (c) 2002-2004, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include "tcd.h"
  30 #include "int.h"
  31 #include "t1.h"
  32 #include "t2.h"
  33 #include "dwt.h"
  34 #include "mct.h"
  35 #include <setjmp.h>
  36 #include <float.h>
  37 #include <stdio.h>
  38 #include <time.h>
  39 #include <math.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42
  43 static tcd_image_t tcd_image;
  44
  45 static j2k_image_t *tcd_img;
  46 static j2k_cp_t *tcd_cp;
  47
  48 static tcd_tile_t *tcd_tile;
  49 static j2k_tcp_t *tcd_tcp;
  50 static int tcd_tileno;
  51
  52 static tcd_tile_t *tile;
  53 static tcd_tilecomp_t *tilec;
  54 static tcd_resolution_t *res;
  55 static tcd_band_t *band;
  56 static tcd_precinct_t *prc;
  57 static tcd_cblk_t *cblk;
  58
  59 extern jmp_buf j2k_error;
  60
  61 void tcd_dump(tcd_image_t * img, int curtileno)
  62 {
  63         int tileno, compno, resno, bandno, precno, cblkno;
  64         /* fprintf(stderr, "image {\n"); */
  65         fprintf(stderr, "  tw=%d, th=%d x0 %d x1 %d\n", img->tw, img->th,
  66                                         tcd_img->x0, tcd_img->x1);
  67         for (tileno = 0; tileno < 1; tileno++) {
  68                 tcd_tile_t *tile = &tcd_image.tiles[curtileno];
  69                 /* fprintf(stderr, "  tile {\n"); */
  70                 /* fprintf(stderr, "    x0=%d, y0=%d, x1=%d, y1=%d, numcomps=%d\n", tile->x0, tile->y0, tile->x1, tile->y1, tile->numcomps); */
  71                 for (compno = 0; compno < tile->numcomps; compno++) {
  72                         tcd_tilecomp_t *tilec = &tile->comps[compno];
  73                         /* fprintf(stderr, "    tilec {\n"); */
  74                         /* fprintf(stderr, "      x0=%d, y0=%d, x1=%d, y1=%d, numresolutions=%d\n", tilec->x0, tilec->y0, tilec->x1, tilec->y1, tilec->numresolutions); */
  75                         for (resno = 0; resno < tilec->numresolutions; resno++) {
  76                                 tcd_resolution_t *res = &tilec->resolutions[resno];
  77                                 /* fprintf(stderr, "\n   res {\n"); */
  78                                 /* fprintf(stderr, "          x0=%d, y0=%d, x1=%d, y1=%d, pw=%d, ph=%d, numbands=%d\n", res->x0, res->y0, res->x1, res->y1, res->pw, res->ph, res->numbands); */
  79                                 for (bandno = 0; bandno < res->numbands; bandno++) {
  80                                         tcd_band_t *band = &res->bands[bandno];
  81                                         /* fprintf(stderr, "        band {\n"); */
  82                                         /* fprintf(stderr, "          x0=%d, y0=%d, x1=%d, y1=%d, stepsize=%d, numbps=%d\n", band->x0, band->y0, band->x1, band->y1, band->stepsize, band->numbps); */
  83                                         for (precno = 0; precno < res->pw * res->ph; precno++) {
  84                                                 tcd_precinct_t *prec = &band->precincts[precno];
  85                                                 /* fprintf(stderr, "          prec {\n"); */
  86                                                 /* fprintf(stderr, "            x0=%d, y0=%d, x1=%d, y1=%d, cw=%d, ch=%d\n", prec->x0, prec->y0, prec->x1, prec->y1, prec->cw, prec->ch); */
  87                                                 for (cblkno = 0; cblkno < prec->cw * prec->ch; cblkno++) {
  88                                                         /* tcd_cblk_t *cblk=&prec->cblks[cblkno]; */
  89                                                         /* fprintf(stderr, "            cblk {\n"); */
  90                                                         /* fprintf(stderr, "              x0=%d, y0=%d, x1=%d, y1=%d\n", cblk->x0, cblk->y0, cblk->x1, cblk->y1); */
  91                                                         /* fprintf(stderr, "            }\n"); */
  92                                                 }
  93                                                 /* fprintf(stderr, "          }\n"); */
  94                                         }
  95                                         /* fprintf(stderr, "        }\n"); */
  96                                 }
  97                                 /* fprintf(stderr, "      }\n"); */
  98                         }
  99                         /* fprintf(stderr, "    }\n"); */
 100                 }
 101                 /* fprintf(stderr, "  }\n"); */
 102         }
 103         /* fprintf(stderr, "}\n"); */
 104 }
 105
 106 void tcd_malloc_encode(j2k_image_t * img, j2k_cp_t * cp, int curtileno)
 107 {
 108         int tileno, compno, resno, bandno, precno, cblkno;
 109         tcd_img = img;
 110         tcd_cp = cp;
 111         tcd_image.tw = cp->tw;
 112         tcd_image.th = cp->th;
 113         tcd_image.tiles = (tcd_tile_t *) malloc(sizeof(tcd_tile_t));
 114
 115         for (tileno = 0; tileno < 1; tileno++) {
 116                 j2k_tcp_t *tcp = &cp->tcps[curtileno];
 117                 int j;
 118                 /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */
 119                 int p = curtileno % cp->tw;     /* si numerotation matricielle .. */
 120                 int q = curtileno / cp->tw;     /* .. coordonnees de la tile (q,p) q pour ligne et p pour colonne */
 121                 /* tcd_tile_t *tile=&tcd_image.tiles[tileno]; */
 122                 tile = tcd_image.tiles;
 123                 /* 4 borders of the tile rescale on the image if necessary */
 124                 tile->x0 = int_max(cp->tx0 + p * cp->tdx, img->x0);
 125                 tile->y0 = int_max(cp->ty0 + q * cp->tdy, img->y0);
 126                 tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, img->x1);
 127                 tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, img->y1);
 128                 tile->numcomps = img->numcomps;
 129                 /* tile->PPT=img->PPT;  */
 130                 /* Modification of the RATE >> */
 131                 for (j = 0; j < tcp->numlayers; j++) {
 132                         tcp->rates[j] = ceil(tile->numcomps * (tile->x1 - tile->x0) * (tile->y1 - tile->y0) * img->comps[0].prec / (tcp->rates[j] * 8 * img->comps[0].dx * img->comps[0].dy));
 133                         if (j && tcp->rates[j] < tcp->rates[j - 1] + 10) {
 134                                 tcp->rates[j] = tcp->rates[j - 1] + 20;
 135                         } else {
 136                                 if (!j && tcp->rates[j] < 30)
 137                                         tcp->rates[j] = 30;
 138                         }
 139                 }
 140                 /* << Modification of the RATE */
 141
 142                 tile->comps = (tcd_tilecomp_t *) malloc(img->numcomps * sizeof(tcd_tilecomp_t));
 143                 for (compno = 0; compno < tile->numcomps; compno++) {
 144                         j2k_tccp_t *tccp = &tcp->tccps[compno];
 145                         /* tcd_tilecomp_t *tilec=&tile->comps[compno]; */
 146                         tilec = &tile->comps[compno];
 147                         /* border of each tile component (global) */
 148                         tilec->x0 = int_ceildiv(tile->x0, img->comps[compno].dx);
 149
 150                         tilec->y0 = int_ceildiv(tile->y0, img->comps[compno].dy);
 151                         tilec->x1 = int_ceildiv(tile->x1, img->comps[compno].dx);
 152                         tilec->y1 = int_ceildiv(tile->y1, img->comps[compno].dy);
 153
 154                         tilec->data = (int *) malloc((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0) * sizeof(int));
 155                         tilec->numresolutions = tccp->numresolutions;
 156
 157                         tilec->resolutions = (tcd_resolution_t *) malloc(tilec->numresolutions * sizeof(tcd_resolution_t));
 158
 159                         for (resno = 0; resno < tilec->numresolutions; resno++) {
 160                                 int pdx, pdy;
 161                                 int levelno = tilec->numresolutions - 1 - resno;
 162                                 int tlprcxstart, tlprcystart, brprcxend, brprcyend;
 163                                 int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend;
 164                                 int cbgwidthexpn, cbgheightexpn;
 165                                 int cblkwidthexpn, cblkheightexpn;
 166                                 /* tcd_resolution_t *res=&tilec->resolutions[resno]; */
 167
 168                                 res = &tilec->resolutions[resno];
 169
 170                                 /* border for each resolution level (global) */
 171                                 res->x0 = int_ceildivpow2(tilec->x0, levelno);
 172                                 res->y0 = int_ceildivpow2(tilec->y0, levelno);
 173                                 res->x1 = int_ceildivpow2(tilec->x1, levelno);
 174                                 res->y1 = int_ceildivpow2(tilec->y1, levelno);
 175
 176                                 res->numbands = resno == 0 ? 1 : 3;
 177                                 /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */
 178                                 if (tccp->csty & J2K_CCP_CSTY_PRT) {
 179                                         pdx = tccp->prcw[resno];
 180                                         pdy = tccp->prch[resno];
 181                                 } else {
 182                                         pdx = 15;
 183                                         pdy = 15;
 184                                 }
 185                                 /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000)  */
 186                                 tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx;
 187                                 tlprcystart = int_floordivpow2(res->y0, pdy) << pdy;
 188                                 brprcxend = int_ceildivpow2(res->x1, pdx) << pdx;
 189                                 brprcyend = int_ceildivpow2(res->y1, pdy) << pdy;
 190
 191                                 res->pw = (brprcxend - tlprcxstart) >> pdx;
 192                                 res->ph = (brprcyend - tlprcystart) >> pdy;
 193
 194                                 if (resno == 0) {
 195                                         tlcbgxstart = tlprcxstart;
 196                                         tlcbgystart = tlprcystart;
 197                                         brcbgxend = brprcxend;
 198                                         brcbgyend = brprcyend;
 199                                         cbgwidthexpn = pdx;
 200                                         cbgheightexpn = pdy;
 201                                 } else {
 202                                         tlcbgxstart = int_ceildivpow2(tlprcxstart, 1);
 203                                         tlcbgystart = int_ceildivpow2(tlprcystart, 1);
 204                                         brcbgxend = int_ceildivpow2(brprcxend, 1);
 205                                         brcbgyend = int_ceildivpow2(brprcyend, 1);
 206                                         cbgwidthexpn = pdx - 1;
 207                                         cbgheightexpn = pdy - 1;
 208                                 }
 209
 210                                 cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn);
 211                                 cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn);
 212
 213                                 for (bandno = 0; bandno < res->numbands; bandno++) {
 214                                         int x0b, y0b, i;
 215                                         int gain, numbps;
 216                                         j2k_stepsize_t *ss;
 217                                         band = &res->bands[bandno];
 218                                         band->bandno = resno == 0 ? 0 : bandno + 1;
 219                                         x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0;
 220                                         y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0;
 221
 222                                         if (band->bandno == 0) {
 223                                                 /* band border (global) */
 224                                                 band->x0 = int_ceildivpow2(tilec->x0, levelno);
 225                                                 band->y0 = int_ceildivpow2(tilec->y0, levelno);
 226                                                 band->x1 = int_ceildivpow2(tilec->x1, levelno);
 227                                                 band->y1 = int_ceildivpow2(tilec->y1, levelno);
 228                                         } else {
 229                                                 /* band border (global) */
 230                                                 band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1);
 231                                                 band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1);
 232                                                 band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1);
 233                                                 band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1);
 234
 235                                         }
 236
 237                                         ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1];
 238                                         gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno);
 239                                         numbps = img->comps[compno].prec + gain;
 240                                         band->stepsize = (int) floor((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn) * 8192.0);
 241                                         band->numbps = ss->expn + tccp->numgbits - 1;   /* WHY -1 ? */
 242
 243                                         band->precincts = (tcd_precinct_t *) malloc(3 * res->pw * res->ph * sizeof(tcd_precinct_t));
 244
 245                                         for (i = 0; i < res->pw * res->ph * 3; i++) {
 246                                                 band->precincts[i].imsbtree = NULL;
 247                                                 band->precincts[i].incltree = NULL;
 248                                         }
 249
 250                                         for (precno = 0; precno < res->pw * res->ph; precno++) {
 251                                                 int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend;
 252                                                 int cbgxstart =
 253                                                         tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn);
 254                                                 int cbgystart =
 255                                                         tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn);
 256                                                 int cbgxend = cbgxstart + (1 << cbgwidthexpn);
 257                                                 int cbgyend = cbgystart + (1 << cbgheightexpn);
 258                                                 /* tcd_precinct_t *prc=&band->precincts[precno]; */
 259                                                 prc = &band->precincts[precno];
 260                                                 /* precinct size (global) */
 261                                                 prc->x0 = int_max(cbgxstart, band->x0);
 262                                                 prc->y0 = int_max(cbgystart, band->y0);
 263                                                 prc->x1 = int_min(cbgxend, band->x1);
 264                                                 prc->y1 = int_min(cbgyend, band->y1);
 265
 266                                                 tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn;
 267                                                 tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn;
 268                                                 brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn;
 269                                                 brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn;
 270                                                 prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn;
 271                                                 prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn;
 272
 273                                                 prc->cblks = (tcd_cblk_t *) malloc((prc->cw * prc->ch) * sizeof(tcd_cblk_t));
 274                                                 prc->incltree = tgt_create(prc->cw, prc->ch);
 275                                                 prc->imsbtree = tgt_create(prc->cw, prc->ch);
 276
 277                                                 for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 278                                                         int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn);
 279                                                         int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn);
 280                                                         int cblkxend = cblkxstart + (1 << cblkwidthexpn);
 281                                                         int cblkyend = cblkystart + (1 << cblkheightexpn);
 282
 283                                                         cblk = &prc->cblks[cblkno];
 284                                                         /* code-block size (global) */
 285                                                         cblk->x0 = int_max(cblkxstart, prc->x0);
 286                                                         cblk->y0 = int_max(cblkystart, prc->y0);
 287                                                         cblk->x1 = int_min(cblkxend, prc->x1);
 288                                                         cblk->y1 = int_min(cblkyend, prc->y1);
 289                                                 }
 290                                         }
 291                                 }
 292                         }
 293                 }
 294         }
 295         /* tcd_dump(&tcd_image,curtileno); */
 296 }
 297
 298 void tcd_free_encode(j2k_image_t * img, j2k_cp_t * cp, int curtileno)
 299 {
 300         int tileno, compno, resno, bandno, precno;
 301         tcd_img = img;
 302         tcd_cp = cp;
 303         tcd_image.tw = cp->tw;
 304         tcd_image.th = cp->th;
 305         for (tileno = 0; tileno < 1; tileno++) {
 306                 /* j2k_tcp_t *tcp=&cp->tcps[curtileno]; */
 307                 tile = tcd_image.tiles;
 308                 for (compno = 0; compno < tile->numcomps; compno++) {
 309                         tilec = &tile->comps[compno];
 310                         for (resno = 0; resno < tilec->numresolutions; resno++) {
 311                                 res = &tilec->resolutions[resno];
 312                                 for (bandno = 0; bandno < res->numbands; bandno++) {
 313                                         band = &res->bands[bandno];
 314                                         for (precno = 0; precno < res->pw * res->ph; precno++) {
 315                                                 prc = &band->precincts[precno];
 316
 317                                                 if (prc->incltree != NULL)
 318                                                         tgt_destroy(prc->incltree);
 319                                                 if (prc->imsbtree != NULL)
 320                                                         tgt_destroy(prc->imsbtree);
 321                                                 free(prc->cblks);
 322                                         }               /* for (precno */
 323                                         free(band->precincts);
 324                                 }                       /* for (bandno */
 325                         }                               /* for (resno */
 326                         free(tilec->resolutions);
 327                 }                                       /* for (compno */
 328                 free(tile->comps);
 329         }                                               /* for (tileno */
 330         free(tcd_image.tiles);
 331 }
 332
 333 void tcd_init_encode(j2k_image_t * img, j2k_cp_t * cp, int curtileno)
 334 {
 335         int tileno, compno, resno, bandno, precno, cblkno;
 336
 337         for (tileno = 0; tileno < 1; tileno++) {
 338                 j2k_tcp_t *tcp = &cp->tcps[curtileno];
 339                 int j;
 340                 //              int previous_x0, previous_x1, previous_y0, previous_y1;
 341                 /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */
 342                 int p = curtileno % cp->tw;
 343                 int q = curtileno / cp->tw;
 344                 tile = tcd_image.tiles;
 345
 346                 /* 4 borders of the tile rescale on the image if necessary */
 347                 tile->x0 = int_max(cp->tx0 + p * cp->tdx, img->x0);
 348                 tile->y0 = int_max(cp->ty0 + q * cp->tdy, img->y0);
 349                 tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, img->x1);
 350                 tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, img->y1);
 351
 352                 tile->numcomps = img->numcomps;
 353                 /* tile->PPT=img->PPT; */
 354                 /* Modification of the RATE >> */
 355                 for (j = 0; j < tcp->numlayers; j++) {
 356                         tcp->rates[j] = ceil(tile->numcomps * (tile->x1 - tile->x0) * (tile->y1 - tile->y0) * img->comps[0].prec
 357                                              / (tcp->rates[j] * 8 * img->comps[0].dx * img->comps[0].dy));
 358                         if (j && tcp->rates[j] < tcp->rates[j - 1] + 10) {
 359                                 tcp->rates[j] = tcp->rates[j - 1] + 20;
 360                         } else {
 361                                 if (!j && tcp->rates[j] < 30)
 362                                         tcp->rates[j] = 30;
 363                         }
 364                 }
 365                 /* << Modification of the RATE */
 366                 /* tile->comps=(tcd_tilecomp_t*)realloc(tile->comps,img->numcomps*sizeof(tcd_tilecomp_t)); */
 367                 for (compno = 0; compno < tile->numcomps; compno++) {
 368                         j2k_tccp_t *tccp = &tcp->tccps[compno];
 369                         /* int realloc_op; */
 370
 371                         tilec = &tile->comps[compno];
 372                         /* border of each tile component (global) */
 373                         tilec->x0 = int_ceildiv(tile->x0, img->comps[compno].dx);
 374                         tilec->y0 = int_ceildiv(tile->y0, img->comps[compno].dy);
 375                         tilec->x1 = int_ceildiv(tile->x1, img->comps[compno].dx);
 376                         tilec->y1 = int_ceildiv(tile->y1, img->comps[compno].dy);
 377
 378                         tilec->data = (int *) malloc((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0) * sizeof(int));
 379                         tilec->numresolutions = tccp->numresolutions;
 380                         /* tilec->resolutions=(tcd_resolution_t*)realloc(tilec->resolutions,tilec->numresolutions*sizeof(tcd_resolution_t)); */
 381                         for (resno = 0; resno < tilec->numresolutions; resno++) {
 382                                 int pdx, pdy;
 383                                 int levelno = tilec->numresolutions - 1 - resno;
 384                                 int tlprcxstart, tlprcystart, brprcxend, brprcyend;
 385                                 int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend;
 386                                 int cbgwidthexpn, cbgheightexpn;
 387                                 int cblkwidthexpn, cblkheightexpn;
 388
 389                                 res = &tilec->resolutions[resno];
 390                                 /* border for each resolution level (global) */
 391                                 res->x0 = int_ceildivpow2(tilec->x0, levelno);
 392                                 res->y0 = int_ceildivpow2(tilec->y0, levelno);
 393                                 res->x1 = int_ceildivpow2(tilec->x1, levelno);
 394                                 res->y1 = int_ceildivpow2(tilec->y1, levelno);
 395
 396                                 res->numbands = resno == 0 ? 1 : 3;
 397                                 /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */
 398                                 if (tccp->csty & J2K_CCP_CSTY_PRT) {
 399                                         pdx = tccp->prcw[resno];
 400                                         pdy = tccp->prch[resno];
 401                                 } else {
 402                                         pdx = 15;
 403                                         pdy = 15;
 404                                 }
 405                                 /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000)  */
 406                                 tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx;
 407                                 tlprcystart = int_floordivpow2(res->y0, pdy) << pdy;
 408                                 brprcxend = int_ceildivpow2(res->x1, pdx) << pdx;
 409                                 brprcyend = int_ceildivpow2(res->y1, pdy) << pdy;
 410
 411                                 res->pw = (brprcxend - tlprcxstart) >> pdx;
 412                                 res->ph = (brprcyend - tlprcystart) >> pdy;
 413
 414                                 if (resno == 0) {
 415                                         tlcbgxstart = tlprcxstart;
 416                                         tlcbgystart = tlprcystart;
 417                                         brcbgxend = brprcxend;
 418                                         brcbgyend = brprcyend;
 419                                         cbgwidthexpn = pdx;
 420                                         cbgheightexpn = pdy;
 421                                 } else {
 422                                         tlcbgxstart = int_ceildivpow2(tlprcxstart, 1);
 423                                         tlcbgystart = int_ceildivpow2(tlprcystart, 1);
 424                                         brcbgxend = int_ceildivpow2(brprcxend, 1);
 425                                         brcbgyend = int_ceildivpow2(brprcyend, 1);
 426                                         cbgwidthexpn = pdx - 1;
 427                                         cbgheightexpn = pdy - 1;
 428                                 }
 429
 430                                 cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn);
 431                                 cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn);
 432
 433                                 for (bandno = 0; bandno < res->numbands; bandno++) {
 434                                         int x0b, y0b;
 435                                         int gain, numbps;
 436                                         j2k_stepsize_t *ss;
 437                                         band = &res->bands[bandno];
 438                                         band->bandno = resno == 0 ? 0 : bandno + 1;
 439                                         x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0;
 440                                         y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0;
 441
 442                                         if (band->bandno == 0) {
 443                                                 /* band border */
 444                                                 band->x0 = int_ceildivpow2(tilec->x0, levelno);
 445                                                 band->y0 = int_ceildivpow2(tilec->y0, levelno);
 446                                                 band->x1 = int_ceildivpow2(tilec->x1, levelno);
 447                                                 band->y1 = int_ceildivpow2(tilec->y1, levelno);
 448                                         } else {
 449                                                 band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1);
 450                                                 band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1);
 451                                                 band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1);
 452                                                 band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1);
 453                                         }
 454
 455                                         ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1];
 456                                         gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno);
 457                                         numbps = img->comps[compno].prec + gain;
 458                                         band->stepsize = (int) floor((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn) * 8192.0);
 459                                         band->numbps = ss->expn + tccp->numgbits - 1;   /* WHY -1 ? */
 460
 461                                         for (precno = 0; precno < res->pw * res->ph; precno++) {
 462                                                 int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend;
 463                                                 int cbgxstart =
 464                                                         tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn);
 465                                                 int cbgystart =
 466                                                         tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn);
 467                                                 int cbgxend = cbgxstart + (1 << cbgwidthexpn);
 468                                                 int cbgyend = cbgystart + (1 << cbgheightexpn);
 469
 470                                                 prc = &band->precincts[precno];
 471                                                 /* precinct size (global) */
 472                                                 prc->x0 = int_max(cbgxstart, band->x0);
 473                                                 prc->y0 = int_max(cbgystart, band->y0);
 474                                                 prc->x1 = int_min(cbgxend, band->x1);
 475                                                 prc->y1 = int_min(cbgyend, band->y1);
 476
 477                                                 tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn;
 478                                                 tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn;
 479                                                 brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn;
 480                                                 brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn;
 481                                                 prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn;
 482                                                 prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn;
 483
 484                                                 free(prc->cblks);
 485                                                 prc->cblks = (tcd_cblk_t *) malloc(prc->cw * prc->ch * sizeof(tcd_cblk_t));
 486
 487                                                 if (prc->incltree != NULL)
 488                                                         tgt_destroy(prc->incltree);
 489                                                 if (prc->imsbtree != NULL)
 490                                                         tgt_destroy(prc->imsbtree);
 491
 492                                                 prc->incltree = tgt_create(prc->cw, prc->ch);
 493                                                 prc->imsbtree = tgt_create(prc->cw, prc->ch);
 494
 495                                                 for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 496                                                         int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn);
 497                                                         int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn);
 498                                                         int cblkxend = cblkxstart + (1 << cblkwidthexpn);
 499                                                         int cblkyend = cblkystart + (1 << cblkheightexpn);
 500                                                         cblk = &prc->cblks[cblkno];
 501
 502                                                         /* code-block size (global) */
 503                                                         cblk->x0 = int_max(cblkxstart, prc->x0);
 504                                                         cblk->y0 = int_max(cblkystart, prc->y0);
 505                                                         cblk->x1 = int_min(cblkxend, prc->x1);
 506                                                         cblk->y1 = int_min(cblkyend, prc->y1);
 507
 508                                                 }
 509                                         }
 510                                 }
 511                         }
 512                 }
 513         }
 514         /* tcd_dump(&tcd_image,0); */
 515 }
 516
 517 void tcd_init(j2k_image_t * img, j2k_cp_t * cp)
 518 {
 519         int tileno, compno, resno, bandno, precno, cblkno, i;
 520         unsigned int x0=0 , y0=0, x1 = 0, y1 = 0, w, h, j, p, q;
 521         tcd_img = img;
 522         tcd_cp = cp;
 523         tcd_image.tw = cp->tw;
 524         tcd_image.th = cp->th;
 525         tcd_image.tiles = (tcd_tile_t *) malloc(cp->tw * cp->th * sizeof(tcd_tile_t));
 526
 527         /*for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
 528                 j2k_tcp_t *tcp = &cp->tcps[tileno];
 529                 tcd_tile_t *tile = &tcd_image.tiles[tileno];*/
 530
 531         for (i = 0 ; i < cp->tileno_size ; i++){
 532           j2k_tcp_t *tcp = &cp->tcps[cp->tileno[i]];
 533           tcd_tile_t *tile = &tcd_image.tiles[cp->tileno[i]];
 534           tileno = cp->tileno[i];
 535
 536
 537                 //              int previous_x0, previous_x1, previous_y0, previous_y1;
 538                 /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */
 539                 p = tileno % cp->tw;            /* si numerotation matricielle .. */
 540                 q = tileno / cp->tw;            /* .. coordonnees de la tile (q,p) q pour ligne et p pour colonne */
 541
 542                 /* 4 borders of the tile rescale on the image if necessary */
 543                 tile->x0 = int_max(cp->tx0 + p * cp->tdx, img->x0);
 544                 tile->y0 = int_max(cp->ty0 + q * cp->tdy, img->y0);
 545                 tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, img->x1);
 546                 tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, img->y1);
 547
 548                 tile->numcomps = img->numcomps;
 549                 tile->comps = (tcd_tilecomp_t *) malloc(img->numcomps * sizeof(tcd_tilecomp_t));
 550                 for (compno = 0; compno < tile->numcomps; compno++) {
 551                         j2k_tccp_t *tccp = &tcp->tccps[compno];
 552                         tcd_tilecomp_t *tilec = &tile->comps[compno];
 553                         /* border of each tile component (global) */
 554                         tilec->x0 = int_ceildiv(tile->x0, img->comps[compno].dx);
 555                         tilec->y0 = int_ceildiv(tile->y0, img->comps[compno].dy);
 556                         tilec->x1 = int_ceildiv(tile->x1, img->comps[compno].dx);
 557                         tilec->y1 = int_ceildiv(tile->y1, img->comps[compno].dy);
 558
 559                         tilec->data = (int *) malloc((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0) * sizeof(int));
 560                         tilec->numresolutions = tccp->numresolutions;
 561                         tilec->resolutions = (tcd_resolution_t *) malloc(tilec->numresolutions * sizeof(tcd_resolution_t));
 562                         for (resno = 0; resno < tilec->numresolutions; resno++) {
 563                                 int pdx, pdy;
 564                                 int levelno = tilec->numresolutions - 1 - resno;
 565                                 int tlprcxstart, tlprcystart, brprcxend, brprcyend;
 566                                 int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend;
 567                                 int cbgwidthexpn, cbgheightexpn;
 568                                 int cblkwidthexpn, cblkheightexpn;
 569                                 tcd_resolution_t *res = &tilec->resolutions[resno];
 570
 571                                 /* border for each resolution level (global) */
 572                                 res->x0 = int_ceildivpow2(tilec->x0, levelno);
 573                                 res->y0 = int_ceildivpow2(tilec->y0, levelno);
 574                                 res->x1 = int_ceildivpow2(tilec->x1, levelno);
 575                                 res->y1 = int_ceildivpow2(tilec->y1, levelno);
 576
 577                                 res->numbands = resno == 0 ? 1 : 3;
 578                                 /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */
 579                                 if (tccp->csty & J2K_CCP_CSTY_PRT) {
 580                                         pdx = tccp->prcw[resno];
 581                                         pdy = tccp->prch[resno];
 582                                 } else {
 583                                         pdx = 15;
 584                                         pdy = 15;
 585                                 }
 586                                 /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000)  */
 587                                 tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx;
 588                                 tlprcystart = int_floordivpow2(res->y0, pdy) << pdy;
 589                                 brprcxend = int_ceildivpow2(res->x1, pdx) << pdx;
 590                                 brprcyend = int_ceildivpow2(res->y1, pdy) << pdy;
 591                                 res->pw = (brprcxend - tlprcxstart) >> pdx;
 592                                 res->ph = (brprcyend - tlprcystart) >> pdy;
 593
 594                                 if (resno == 0) {
 595                                         tlcbgxstart = tlprcxstart;
 596                                         tlcbgystart = tlprcystart;
 597                                         brcbgxend = brprcxend;
 598                                         brcbgyend = brprcyend;
 599                                         cbgwidthexpn = pdx;
 600                                         cbgheightexpn = pdy;
 601                                 } else {
 602                                         tlcbgxstart = int_ceildivpow2(tlprcxstart, 1);
 603                                         tlcbgystart = int_ceildivpow2(tlprcystart, 1);
 604                                         brcbgxend = int_ceildivpow2(brprcxend, 1);
 605                                         brcbgyend = int_ceildivpow2(brprcyend, 1);
 606                                         cbgwidthexpn = pdx - 1;
 607                                         cbgheightexpn = pdy - 1;
 608                                 }
 609
 610                                 cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn);
 611                                 cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn);
 612
 613                                 for (bandno = 0; bandno < res->numbands; bandno++) {
 614                                         int x0b, y0b;
 615                                         int gain, numbps;
 616                                         j2k_stepsize_t *ss;
 617                                         tcd_band_t *band = &res->bands[bandno];
 618                                         band->bandno = resno == 0 ? 0 : bandno + 1;
 619                                         x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0;
 620                                         y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0;
 621
 622                                         if (band->bandno == 0) {
 623                                                 /* band border (global) */
 624                                                 band->x0 = int_ceildivpow2(tilec->x0, levelno);
 625                                                 band->y0 = int_ceildivpow2(tilec->y0, levelno);
 626                                                 band->x1 = int_ceildivpow2(tilec->x1, levelno);
 627                                                 band->y1 = int_ceildivpow2(tilec->y1, levelno);
 628                                         } else {
 629                                                 /* band border (global) */
 630                                                 band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1);
 631                                                 band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1);
 632                                                 band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1);
 633                                                 band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1);
 634                                         }
 635
 636                                         ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1];
 637                                         gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno);
 638                                         numbps = img->comps[compno].prec + gain;
 639                                         band->stepsize = (int) floor((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn) * 8192.0);
 640                                         band->numbps = ss->expn + tccp->numgbits - 1;   /* WHY -1 ? */
 641
 642                                         band->precincts = (tcd_precinct_t *) malloc(res->pw * res->ph * sizeof(tcd_precinct_t));
 643
 644                                         for (precno = 0; precno < res->pw * res->ph; precno++) {
 645                                                 int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend;
 646                                                 int cbgxstart = tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn);
 647                                                 int cbgystart = tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn);
 648                                                 int cbgxend = cbgxstart + (1 << cbgwidthexpn);
 649                                                 int cbgyend = cbgystart + (1 << cbgheightexpn);
 650                                                 tcd_precinct_t *prc = &band->precincts[precno];
 651                                                 /* precinct size (global) */
 652                                                 prc->x0 = int_max(cbgxstart, band->x0);
 653                                                 prc->y0 = int_max(cbgystart, band->y0);
 654                                                 prc->x1 = int_min(cbgxend, band->x1);
 655                                                 prc->y1 = int_min(cbgyend, band->y1);
 656
 657                                                 tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn;
 658                                                 tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn;
 659                                                 brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn;
 660                                                 brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn;
 661                                                 prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn;
 662                                                 prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn;
 663
 664                                                 prc->cblks = (tcd_cblk_t *) malloc(prc->cw * prc->ch * sizeof(tcd_cblk_t));
 665
 666                                                 prc->incltree = tgt_create(prc->cw, prc->ch);
 667                                                 prc->imsbtree = tgt_create(prc->cw, prc->ch);
 668
 669                                                 for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 670                                                         int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn);
 671                                                         int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn);
 672                                                         int cblkxend = cblkxstart + (1 << cblkwidthexpn);
 673                                                         int cblkyend = cblkystart + (1 << cblkheightexpn);
 674                                                         tcd_cblk_t *cblk = &prc->cblks[cblkno];
 675                                                         /* code-block size (global) */
 676                                                         cblk->x0 = int_max(cblkxstart, prc->x0);
 677                                                         cblk->y0 = int_max(cblkystart, prc->y0);
 678                                                         cblk->x1 = int_min(cblkxend, prc->x1);
 679                                                         cblk->y1 = int_min(cblkyend, prc->y1);
 680                                                 }
 681                                         }
 682                                 }
 683                         }
 684                 }
 685         }
 686         /* tcd_dump(&tcd_image,0); */
 687
 688
 689         /* Allocate place to store the date decoded = fianl image */
 690         /* Place limited by the tile really present in the codestream */
 691         for (i = 0; i < img->numcomps; i++) {
 692           for (j = 0; j < cp->tileno_size; j++) {
 693             tileno = cp->tileno[j];
 694             x0 = j == 0 ? tcd_image.tiles[tileno].x0 : int_min(x0 , tcd_image.tiles[tileno].x0);
 695             y0 = j == 0 ? tcd_image.tiles[tileno].y0 : int_min(y0 , tcd_image.tiles[tileno].y0);
 696             x1 = j == 0 ? tcd_image.tiles[tileno].x1 : int_max(x1 , tcd_image.tiles[tileno].x1);
 697             y1 = j == 0 ? tcd_image.tiles[tileno].y1 : int_max(y1 , tcd_image.tiles[tileno].y1);
 698           }
 699           w = int_ceildiv(x1 - x0, img->comps[i].dx);
 700           h = int_ceildiv(y1 - y0, img->comps[i].dy);
 701           img->comps[i].data = (int *) calloc(w * h,sizeof(int));
 702           img->comps[i].w = w;
 703           img->comps[i].h = h;
 704           img->comps[i].x0 = x0;
 705           img->comps[i].y0 = y0;
 706         }
 707
 708 }
 709
 710 void tcd_makelayer_fixed(int layno, int final) {
 711   int compno, resno, bandno, precno, cblkno;
 712   int value; //, matrice[tcd_tcp->numlayers][tcd_tile->comps[0].numresolutions][3];
 713   int matrice[10][10][3];
 714   int i,j,k;
 715
 716   /*matrice=(int*)malloc(tcd_tcp->numlayers*tcd_tile->comps[0].numresolutions*3*sizeof(int));*/
 717
 718   for (compno=0; compno<tcd_tile->numcomps; compno++)
 719     {
 720       tcd_tilecomp_t *tilec=&tcd_tile->comps[compno];
 721       for (i=0;i<tcd_tcp->numlayers;i++) {
 722         for (j=0;j<tilec->numresolutions;j++) {
 723           for (k=0;k<3;k++) {
 724             matrice[i][j][k]=(int)(tcd_cp->matrice[i*tilec->numresolutions*3+j*3+k]*(float)(tcd_img->comps[compno].prec/16.0));}}}
 725
 726       for (resno=0; resno<tilec->numresolutions; resno++) {
 727         tcd_resolution_t *res=&tilec->resolutions[resno];
 728         for (bandno=0; bandno<res->numbands; bandno++) {
 729           tcd_band_t *band=&res->bands[bandno];
 730           for (precno=0; precno<res->pw*res->ph; precno++) {
 731             tcd_precinct_t *prc=&band->precincts[precno];
 732             for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
 733               tcd_cblk_t *cblk=&prc->cblks[cblkno];
 734               tcd_layer_t *layer=&cblk->layers[layno];
 735               int n;
 736               int imsb=tcd_img->comps[compno].prec-cblk->numbps; /* number of bit-plan equal to zero */
 737               /* Correction of the matrix of coefficient to include the IMSB information */
 738
 739               if (layno==0)
 740                 {
 741                   value=matrice[layno][resno][bandno];
 742                   if (imsb>=value)
 743                     value=0;
 744                   else
 745                     value-=imsb;
 746                 } else
 747                   {
 748                     value=matrice[layno][resno][bandno]-matrice[layno-1][resno][bandno];
 749                     if (imsb>=matrice[layno-1][resno][bandno])
 750                       {
 751                         value-=(imsb-matrice[layno-1][resno][bandno]);
 752                         if (value<0) value=0;
 753                       }
 754                   }
 755
 756               if (layno==0)
 757                 cblk->numpassesinlayers=0;
 758
 759               n=cblk->numpassesinlayers;
 760               if (cblk->numpassesinlayers==0)
 761                 {
 762                   if (value!=0)
 763                     n=3*value-2+cblk->numpassesinlayers;
 764                   else
 765                     n=cblk->numpassesinlayers;
 766                 } else
 767                   n=3*value+cblk->numpassesinlayers;
 768
 769               layer->numpasses=n-cblk->numpassesinlayers;
 770
 771               if (!layer->numpasses)
 772                 continue;
 773
 774               if (cblk->numpassesinlayers==0)
 775                 {
 776                   layer->len=cblk->passes[n-1].rate;
 777                   layer->data=cblk->data;
 778                 } else
 779                   {
 780                     layer->len=cblk->passes[n-1].rate-cblk->passes[cblk->numpassesinlayers-1].rate;
 781                     layer->data=cblk->data+cblk->passes[cblk->numpassesinlayers-1].rate;
 782                   }
 783               if (final)
 784                 cblk->numpassesinlayers=n;
 785             }
 786           }
 787         }
 788       }
 789     }
 790 }
 791
 792 void tcd_rateallocate_fixed() {
 793   int layno;
 794
 795   for (layno=0; layno<tcd_tcp->numlayers; layno++)
 796     {
 797       tcd_makelayer_fixed(layno, 1);
 798     }
 799 }
 800
 801 void tcd_makelayer(int layno, double thresh, int final)
 802 {
 803         int compno, resno, bandno, precno, cblkno, passno;
 804         for (compno = 0; compno < tcd_tile->numcomps; compno++) {
 805                 tcd_tilecomp_t *tilec = &tcd_tile->comps[compno];
 806                 for (resno = 0; resno < tilec->numresolutions; resno++) {
 807                         tcd_resolution_t *res = &tilec->resolutions[resno];
 808                         for (bandno = 0; bandno < res->numbands; bandno++) {
 809                                 tcd_band_t *band = &res->bands[bandno];
 810                                 for (precno = 0; precno < res->pw * res->ph; precno++) {
 811                                         tcd_precinct_t *prc = &band->precincts[precno];
 812                                         for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 813                                                 tcd_cblk_t *cblk = &prc->cblks[cblkno];
 814                                                 tcd_layer_t *layer = &cblk->layers[layno];
 815                                                 int n;
 816
 817                                                 if (layno == 0) {
 818                                                         cblk->numpassesinlayers = 0;
 819                                                 }
 820                                                 n = cblk->numpassesinlayers;
 821                                                 for (passno = cblk->numpassesinlayers;
 822                                                                  passno < cblk->totalpasses; passno++) {
 823                                                         int dr;
 824                                                         double dd;
 825                                                         tcd_pass_t *pass = &cblk->passes[passno];
 826                                                         if (n == 0) {
 827                                                                 dr = pass->rate;
 828                                                                 dd = pass->distortiondec;
 829                                                         } else {
 830                                                                 dr = pass->rate - cblk->passes[n - 1].rate;
 831                                                                 dd = pass->distortiondec - cblk->passes[n - 1].distortiondec;
 832                                                         }
 833                                                         if (dr == 0) {
 834                                                                 if (dd != 0)
 835                                                                         n = passno + 1;
 836                                                                 continue;
 837                                                         }
 838                                                         if (dd / dr > thresh)
 839                                                                 n = passno + 1;
 840                                                 }
 841                                                 layer->numpasses = n - cblk->numpassesinlayers;
 842                                                 if (!layer->numpasses)
 843                                                         continue;
 844                                                 if (cblk->numpassesinlayers == 0) {
 845                                                         layer->len = cblk->passes[n - 1].rate;
 846                                                         layer->data = cblk->data;
 847                                                         layer->disto = cblk->passes[n - 1].distortiondec;
 848                                                 } else {
 849                                                         layer->len = cblk->passes[n - 1].rate -
 850                                                           cblk->passes[cblk->numpassesinlayers - 1].rate;
 851                                                         layer->data = cblk->data + cblk->passes[cblk->numpassesinlayers - 1].rate;
 852                                                         layer->disto = cblk->passes[n - 1].distortiondec -
 853                                                           cblk->passes[cblk->numpassesinlayers - 1].distortiondec;
 854                                                 }
 855
 856                                                 if (final)
 857                                                         cblk->numpassesinlayers = n;
 858                                         }
 859                                 }
 860                         }
 861                 }
 862         }
 863 }
 864
 865 void tcd_rateallocate(unsigned char *dest, int len, info_image * info_IM)
 866 {
 867         int compno, resno, bandno, precno, cblkno, passno, layno;
 868         double min, max;
 869         min = DBL_MAX;
 870         max = 0;
 871
 872         for (compno = 0; compno < tcd_tile->numcomps; compno++) {
 873                 tcd_tilecomp_t *tilec = &tcd_tile->comps[compno];
 874                 for (resno = 0; resno < tilec->numresolutions; resno++) {
 875                         tcd_resolution_t *res = &tilec->resolutions[resno];
 876                         for (bandno = 0; bandno < res->numbands; bandno++) {
 877                                 tcd_band_t *band = &res->bands[bandno];
 878                                 for (precno = 0; precno < res->pw * res->ph; precno++) {
 879                                         tcd_precinct_t *prc = &band->precincts[precno];
 880                                         for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 881                                                 tcd_cblk_t *cblk = &prc->cblks[cblkno];
 882                                                 for (passno = 0; passno < cblk->totalpasses; passno++) {
 883                                                         tcd_pass_t *pass = &cblk->passes[passno];
 884                                                         int dr;
 885                                                         double dd, rdslope;
 886                                                         if (passno == 0) {
 887                                                                 dr = pass->rate;
 888                                                                 dd = pass->distortiondec;
 889                                                         } else {
 890                                                                 dr = pass->rate - cblk->passes[passno - 1].rate;
 891                                                                 dd = pass->distortiondec - cblk->passes[passno - 1].distortiondec;
 892                                                         }
 893                                                         if (dr == 0) {
 894                                                                 continue;
 895                                                         }
 896                                                         rdslope = dd / dr;
 897                                                         if (rdslope < min) {
 898                                                                 min = rdslope;
 899                                                         }
 900                                                         if (rdslope > max) {
 901                                                                 max = rdslope;
 902                                                         }
 903                                                 } /* passno */
 904                                         } /* cbklno */
 905                                 } /* precno */
 906                         } /* bandno */
 907                 } /* resno */
 908         } /* compno */
 909         if (info_IM->index_on) { /* Threshold for Marcela Index */
 910           info_IM->tile[tcd_tileno].thresh=(double*)malloc(tcd_tcp->numlayers*sizeof(double));
 911         }
 912         for (layno = 0; layno < tcd_tcp->numlayers; layno++) {
 913                 volatile double lo = min;
 914                 volatile double hi = max;
 915                 volatile int success = 0;
 916                 volatile int maxlen = int_min(tcd_tcp->rates[layno], len);
 917                 volatile double goodthresh;
 918                 volatile int goodlen;
 919                 volatile int i;
 920
 921                 for (i = 0; i < 32; i++) {
 922                         volatile double thresh = (lo + hi) / 2;
 923                         int l;
 924
 925                         tcd_makelayer(layno, thresh, 0);
 926
 927                         l = t2_encode_packets(tcd_img, tcd_cp, tcd_tileno, tcd_tile, layno + 1, dest, maxlen, info_IM);
 928                         /* fprintf(stderr, "rate alloc: len=%d, max=%d\n", l, maxlen); */
 929                         if (l == -999) {
 930                                 lo = thresh;
 931                                 continue;
 932                         }
 933
 934                         hi = thresh;
 935                         success = 1;
 936                         goodthresh = thresh;
 937                         goodlen = l;
 938                 }
 939
 940                 if (!success) {
 941                         longjmp(j2k_error, 1);
 942                 }
 943
 944                 if (info_IM->index_on) { /* Threshold for Marcela Index */
 945                   info_IM->tile[tcd_tileno].thresh[layno]=goodthresh;
 946                 }
 947                 tcd_makelayer(layno, goodthresh, 1);
 948         }
 949 }
 950
 951 int tcd_encode_tile_pxm(int tileno, unsigned char *dest, int len, info_image * info_IM)
 952 {
 953         int compno;
 954         int l;
 955         clock_t time7;
 956         tcd_tile_t *tile;
 957         j2k_tcp_t *tcp = &tcd_cp->tcps[0];
 958         j2k_tccp_t *tccp = &tcp->tccps[0];
 959
 960         tcd_tileno = tileno;
 961         tcd_tile = tcd_image.tiles;
 962         tcd_tcp = &tcd_cp->tcps[tileno];
 963         tile = tcd_tile;
 964         /* INDEX >> "Precinct_nb_X et Precinct_nb_Y" */
 965         if (info_IM->index_on) {
 966                 tcd_tilecomp_t *tilec_idx = &tile->comps[0];    /* old parser version */
 967                 tcd_resolution_t *res_idx = &tilec_idx->resolutions[0]; /* old parser version */
 968
 969                 info_IM->tile[tileno].pw = res_idx->pw;
 970                 info_IM->tile[tileno].ph = res_idx->ph;
 971
 972                 info_IM->pw = res_idx->pw;      /* old parser version */
 973                 info_IM->ph = res_idx->ph;      /* old parser version */
 974                 info_IM->pdx = 1 << tccp->prcw[tccp->numresolutions - 1];
 975                 info_IM->pdy = 1 << tccp->prch[tccp->numresolutions - 1];
 976         }
 977         /* << INDEX */
 978
 979 /*---------------TILE-------------------*/
 980
 981         time7 = clock();
 982
 983         for (compno = 0; compno < tile->numcomps; compno++) {
 984                 FILE *src;
 985                 char tmp[256];
 986                 int k;
 987                 unsigned char elmt;
 988                 int i, j;
 989                 int tw, w;
 990                 tcd_tilecomp_t *tilec = &tile->comps[compno];
 991                 int adjust = tcd_img->comps[compno].sgnd ? 0 : 1 << (tcd_img->comps[compno].prec - 1);
 992                 int offset_x, offset_y;
 993
 994                 offset_x = int_ceildiv(tcd_img->x0, tcd_img->comps[compno].dx);
 995                 offset_y = int_ceildiv(tcd_img->y0, tcd_img->comps[compno].dy);
 996                 tw = tilec->x1 - tilec->x0;
 997                 w = int_ceildiv(tcd_img->x1 - tcd_img->x0, tcd_img->comps[compno].dx);
 998                 sprintf(tmp, "Compo%d", compno);        /* component file */
 999                 src = fopen(tmp, "rb");
1000                 if (!src) {
1001                         fprintf(stderr, "failed to open %s for reading\n", tmp);
1002                         return 1;
1003                 }
1004
1005                 /* read the Compo file to extract data of the tile */
1006                 k = 0;
1007                 fseek(src, (tilec->x0 - offset_x) + (tilec->y0 - offset_y) * w, SEEK_SET);
1008                 k = (tilec->x0 - offset_x) + (tilec->y0 - offset_y) * w;
1009                 for (j = tilec->y0; j < tilec->y1; j++) {
1010                         for (i = tilec->x0; i < tilec->x1; i++) {
1011                                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1012                                         elmt = fgetc(src);
1013                                         tilec->data[i - tilec->x0 + (j - tilec->y0) * tw] = elmt - adjust;
1014                                         k++;
1015                                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1016                                         elmt = fgetc(src);
1017                                         tilec->data[i - tilec->x0 + (j - tilec->y0) * tw] = (elmt - adjust) << 13;
1018                                         k++;
1019                                 }
1020                         }
1021                         fseek(src, (tilec->x0 - offset_x) + (j + 1 - offset_y) * w - k, SEEK_CUR);
1022                         k = tilec->x0 - offset_x + (j + 1 - offset_y) * w;
1023
1024                 }
1025                 fclose(src);
1026         }
1027
1028 /*----------------MCT-------------------*/
1029
1030         if (tcd_tcp->mct) {
1031                 if (tcd_tcp->tccps[0].qmfbid == 0) {
1032                         mct_encode_real(tile->comps[0].data, tile->comps[1].data,tile->comps[2].data,
1033                                         (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1034                 } else {
1035                         mct_encode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1036                                    (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1037                 }
1038         }
1039 /*----------------DWT---------------------*/
1040
1041         /* time3=clock(); */
1042         for (compno = 0; compno < tile->numcomps; compno++) {
1043                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1044                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1045                         dwt_encode(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1046                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1047                         dwt_encode_real(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1048                 }
1049         }
1050 /*------------------TIER1-----------------*/
1051
1052         t1_init_luts();
1053         t1_encode_cblks(tile, tcd_tcp);
1054
1055 /*-----------RATE-ALLOCATE------------------*/
1056         info_IM->index_write = 0;                       /* INDEX     */
1057
1058         if (tcd_cp->disto_alloc)
1059           /* Normal Rate/distortion allocation */
1060           tcd_rateallocate(dest, len, info_IM);
1061         else
1062           /* Fixed layer allocation */
1063           tcd_rateallocate_fixed();
1064
1065 /*--------------TIER2------------------*/
1066         info_IM->index_write = 1;                       /* INDEX     */
1067         l = t2_encode_packets(tcd_img, tcd_cp, tileno, tile, tcd_tcp->numlayers, dest, len, info_IM);
1068 /*---------------CLEAN-------------------*/
1069
1070         time7 = clock() - time7;
1071         printf("total:     %ld.%.3ld s\n", time7 / CLOCKS_PER_SEC, (time7 % CLOCKS_PER_SEC) * 1000 / CLOCKS_PER_SEC);
1072
1073         /* cleaning memory */
1074         for (compno = 0; compno < tile->numcomps; compno++) {
1075                 tilec = &tile->comps[compno];
1076                 free(tilec->data);
1077         }
1078
1079         return l;
1080 }
1081
1082 int tcd_encode_tile_pgx(int tileno, unsigned char *dest, int len, info_image * info_IM)
1083 {
1084         int compno;
1085         int l;
1086         clock_t time;
1087         tcd_tile_t *tile;
1088         j2k_tcp_t *tcp = &tcd_cp->tcps[0];
1089         j2k_tccp_t *tccp = &tcp->tccps[0];
1090
1091         tcd_tileno = tileno;
1092         tcd_tile = tcd_image.tiles;
1093         tcd_tcp = &tcd_cp->tcps[tileno];
1094         tile = tcd_tile;
1095         /* INDEX >> "Precinct_nb_X et Precinct_nb_Y" */
1096         if (info_IM->index_on) {
1097                 tcd_tilecomp_t *tilec_idx = &tile->comps[0];
1098                 tcd_resolution_t *res_idx = &tilec_idx->resolutions[0];
1099                 info_IM->tile[tileno].pw = res_idx->pw;
1100                 info_IM->tile[tileno].ph = res_idx->ph;
1101                 info_IM->pw = res_idx->pw;      /* old parser version */
1102                 info_IM->ph = res_idx->ph;      /* old parser version */
1103                 info_IM->pdx = 1 << tccp->prcw[tccp->numresolutions - 1];
1104                 info_IM->pdy = 1 << tccp->prch[tccp->numresolutions - 1];
1105         }
1106         /* << INDEX */
1107 /*---------------TILE-------------------*/
1108         time = clock();
1109
1110         for (compno = 0; compno < tile->numcomps; compno++) {
1111                 FILE *src;
1112                 char tmp[256];
1113                 int k;
1114                 int elmt;
1115                 int i, j;
1116                 int tw, w;
1117                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1118                 int adjust = tcd_img->comps[compno].sgnd ? 0 : 1 << (tcd_img->comps[compno].prec - 1);
1119                 int offset_x, offset_y;
1120
1121                 offset_x = int_ceildiv(tcd_img->x0, tcd_img->comps[compno].dx);
1122                 offset_y = int_ceildiv(tcd_img->y0, tcd_img->comps[compno].dy);
1123                 tw = tilec->x1 - tilec->x0;
1124                 w = int_ceildiv(tcd_img->x1 - tcd_img->x0, tcd_img->comps[compno].dx);
1125                 sprintf(tmp, "bandtile%d", tileno / tcd_cp->tw + 1);    /* bandtile file opening */
1126                 src = fopen(tmp, "rb");
1127                 if (!src) {
1128                         fprintf(stderr, "failed to open %s for reading\n", tmp);
1129                         return 1;
1130                 }
1131                 /* Extract data from bandtile file limited to the current tile */
1132                 k = 0;
1133                 while (k < tilec->x0 - offset_x) {
1134                         k++;
1135                         fscanf(src, "%d", &elmt);
1136                 }
1137
1138                 for (j = 0; j < tilec->y1 - tilec->y0; j++) {
1139                         for (i = tilec->x0; i < tilec->x1; i++) {
1140                                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1141                                         fscanf(src, "%d", &elmt);
1142                                         tilec->data[i - tilec->x0 + (j) * tw] = elmt - adjust;
1143                                         k++;
1144                                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1145                                         fscanf(src, "%d", &elmt);
1146                                         tilec->data[i - tilec->x0 + (j) * tw] = (elmt - adjust) << 13;
1147                                         k++;
1148                                 }
1149                         }
1150                         while (k < tilec->x0 - offset_x + (j + 1) * w) {
1151                                 k++;
1152                                 fscanf(src, "%d", &elmt);
1153                         }
1154                 }
1155                 fclose(src);
1156         }
1157
1158 /*----------------MCT-------------------*/
1159
1160         if (tcd_tcp->mct) {
1161                 if (tcd_tcp->tccps[0].qmfbid == 0) {
1162                         mct_encode_real(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1163                                         (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1164                 } else {
1165                         mct_encode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1166                                    (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1167                 }
1168         }
1169
1170 /*----------------DWT---------------------*/
1171
1172         for (compno = 0; compno < tile->numcomps; compno++) {
1173                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1174                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1175                         dwt_encode(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1176                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1177                         dwt_encode_real(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1178                 }
1179         }
1180
1181 /*------------------TIER1-----------------*/
1182
1183         t1_init_luts();
1184         t1_encode_cblks(tile, tcd_tcp);
1185
1186 /*-----------RATE-ALLOCATE------------------*/
1187         info_IM->index_write = 0;                       /* INDEX */
1188
1189         info_IM->index_write=0; /* INDEX */
1190
1191         if (tcd_cp->disto_alloc)
1192           /* Normal Rate/distortion allocation */
1193           tcd_rateallocate(dest, len, info_IM);
1194         else
1195           /* Fixed layer allocation */
1196           tcd_rateallocate_fixed();
1197
1198 /*--------------TIER2------------------*/
1199         info_IM->index_write = 1;                       /* INDEX */
1200
1201         l = t2_encode_packets(tcd_img, tcd_cp, tileno, tile, tcd_tcp->numlayers, dest, len, info_IM);
1202
1203  /*---------------CLEAN-------------------*/
1204         time = clock() - time;
1205         printf("total:     %ld.%.3ld s\n", time / CLOCKS_PER_SEC, (time % CLOCKS_PER_SEC) * 1000 / CLOCKS_PER_SEC);
1206
1207         for (compno = 0; compno < tile->numcomps; compno++) {
1208                 tilec = &tile->comps[compno];
1209                 free(tilec->data);
1210         }
1211
1212         return l;
1213 }
1214
1215
1216 int tcd_decode_tile(unsigned char *src, int len, int tileno)
1217 {
1218         int l;
1219         int compno;
1220         int eof = 0;
1221         clock_t time;
1222         tcd_tile_t *tile;
1223
1224         tcd_tileno = tileno;
1225         tcd_tile = &tcd_image.tiles[tileno];
1226         tcd_tcp = &tcd_cp->tcps[tileno];
1227         tile = tcd_tile;
1228
1229         time = clock();
1230
1231         fprintf(stderr,"tile decoding time %d/%d: ", tileno + 1, tcd_cp->tw * tcd_cp->th);
1232
1233         /*--------------TIER2------------------*/
1234
1235         l = t2_decode_packets(src, len, tcd_img, tcd_cp, tileno, tile);
1236
1237         if (l == -999) {
1238                 eof = 1;
1239                 fprintf(stderr, "tcd_decode: incomplete bistream\n");
1240         }
1241
1242         /*------------------TIER1-----------------*/
1243         t1_init_luts();
1244         t1_decode_cblks(tile, tcd_tcp);
1245
1246         /*----------------DWT---------------------*/
1247
1248         for (compno = 0; compno < tile->numcomps; compno++)
1249           {
1250             tcd_tilecomp_t *tilec = &tile->comps[compno];
1251             if (tcd_cp->reduce_on == 1)
1252               {
1253                 tcd_img->comps[compno].resno_decoded = tile->comps[compno].numresolutions - tcd_cp->reduce_value - 1;
1254               }
1255
1256
1257             if (tcd_tcp->tccps[compno].qmfbid == 1)
1258               {
1259                 dwt_decode(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1,
1260                            tilec->numresolutions - 1 - tcd_img->comps[compno].resno_decoded);
1261               }  else {
1262                   dwt_decode_real(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1,
1263                                   tilec->numresolutions - 1 - tcd_img->comps[compno].resno_decoded);
1264                 }
1265
1266             if (tile->comps[compno].numresolutions > 0)
1267               tcd_img->comps[compno].factor = tile->comps[compno].numresolutions - (tcd_img->comps[compno].resno_decoded + 1);
1268           }
1269
1270         /*----------------MCT-------------------*/
1271
1272         if (tcd_tcp->mct) {
1273                 if (tcd_tcp->tccps[0].qmfbid == 1) {
1274                   mct_decode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1275                              (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1276                 } else {
1277                   mct_decode_real(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1278                                   (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1279                 }
1280         }
1281
1282         /*---------------TILE-------------------*/
1283
1284         for (compno = 0; compno < tile->numcomps; compno++) {
1285           tcd_tilecomp_t *tilec = &tile->comps[compno];
1286           tcd_resolution_t *res = &tilec->resolutions[tcd_img->comps[compno].resno_decoded];
1287           int adjust = tcd_img->comps[compno].sgnd ? 0 : 1 << (tcd_img->comps[compno].prec - 1);
1288           int min = tcd_img->comps[compno].sgnd ? - (1 << (tcd_img->comps[compno].prec - 1)) : 0;
1289           int max = tcd_img->comps[compno].sgnd ? (1 << (tcd_img->comps[compno].prec - 1)) - 1 : (1 << tcd_img->comps[compno].prec) - 1;
1290
1291           int tw = tilec->x1 - tilec->x0;
1292           int w = tcd_img->comps[compno].w;
1293
1294           int i, j;
1295           int offset_x = int_ceildivpow2(tcd_img->comps[compno].x0, tcd_img->comps[compno].factor);
1296           int offset_y = int_ceildivpow2(tcd_img->comps[compno].y0, tcd_img->comps[compno].factor);
1297
1298           for (j = res->y0; j < res->y1; j++) {
1299             for (i = res->x0; i < res->x1; i++) {
1300
1301               int v;
1302               if (tcd_tcp->tccps[compno].qmfbid == 1) {
1303                 v = tilec->data[i - res->x0 + (j - res->y0) * tw];
1304               } else {
1305                 v = tilec->data[i - res->x0 + (j - res->y0) * tw] >> 13;
1306               }
1307               v += adjust;
1308
1309               tcd_img->comps[compno].data[(i - offset_x) + (j - offset_y) * w] = int_clamp(v, min, max);
1310             }
1311           }
1312         }
1313
1314         time = clock() - time;
1315         fprintf(stderr,"total:     %ld.%.3ld s\n", time / CLOCKS_PER_SEC, (time % CLOCKS_PER_SEC) * 1000 / CLOCKS_PER_SEC);
1316
1317         if (eof) {
1318                 longjmp(j2k_error, 1);
1319         }
1320
1321         return l;
1322 }