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(sizeof(int) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0));
 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(sizeof(int) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0));
 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;
 520         tcd_img = img;
 521         tcd_cp = cp;
 522         tcd_image.tw = cp->tw;
 523         tcd_image.th = cp->th;
 524         tcd_image.tiles = (tcd_tile_t *) malloc(cp->tw * cp->th * sizeof(tcd_tile_t));
 525         for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
 526                 j2k_tcp_t *tcp = &cp->tcps[tileno];
 527                 tcd_tile_t *tile = &tcd_image.tiles[tileno];
 528                 //              int previous_x0, previous_x1, previous_y0, previous_y1;
 529                 /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */
 530                 int p = tileno % cp->tw;                /* si numerotation matricielle .. */
 531                 int q = tileno / cp->tw;                /* .. coordonnees de la tile (q,p) q pour ligne et p pour colonne */
 532
 533                 /* 4 borders of the tile rescale on the image if necessary */
 534                 tile->x0 = int_max(cp->tx0 + p * cp->tdx, img->x0);
 535                 tile->y0 = int_max(cp->ty0 + q * cp->tdy, img->y0);
 536                 tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, img->x1);
 537                 tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, img->y1);
 538
 539                 tile->numcomps = img->numcomps;
 540                 tile->comps = (tcd_tilecomp_t *) malloc(img->numcomps * sizeof(tcd_tilecomp_t));
 541                 for (compno = 0; compno < tile->numcomps; compno++) {
 542                         j2k_tccp_t *tccp = &tcp->tccps[compno];
 543                         tcd_tilecomp_t *tilec = &tile->comps[compno];
 544                         /* border of each tile component (global) */
 545                         tilec->x0 = int_ceildiv(tile->x0, img->comps[compno].dx);
 546                         tilec->y0 = int_ceildiv(tile->y0, img->comps[compno].dy);
 547                         tilec->x1 = int_ceildiv(tile->x1, img->comps[compno].dx);
 548                         tilec->y1 = int_ceildiv(tile->y1, img->comps[compno].dy);
 549
 550                         tilec->data = (int *) malloc(sizeof(int) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0));
 551                         tilec->numresolutions = tccp->numresolutions;
 552                         tilec->resolutions = (tcd_resolution_t *) malloc(tilec->numresolutions * sizeof(tcd_resolution_t));
 553                         for (resno = 0; resno < tilec->numresolutions; resno++) {
 554                                 int pdx, pdy;
 555                                 int levelno = tilec->numresolutions - 1 - resno;
 556                                 int tlprcxstart, tlprcystart, brprcxend, brprcyend;
 557                                 int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend;
 558                                 int cbgwidthexpn, cbgheightexpn;
 559                                 int cblkwidthexpn, cblkheightexpn;
 560                                 tcd_resolution_t *res = &tilec->resolutions[resno];
 561
 562                                 /* border for each resolution level (global) */
 563                                 res->x0 = int_ceildivpow2(tilec->x0, levelno);
 564                                 res->y0 = int_ceildivpow2(tilec->y0, levelno);
 565                                 res->x1 = int_ceildivpow2(tilec->x1, levelno);
 566                                 res->y1 = int_ceildivpow2(tilec->y1, levelno);
 567
 568                                 res->numbands = resno == 0 ? 1 : 3;
 569                                 /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */
 570                                 if (tccp->csty & J2K_CCP_CSTY_PRT) {
 571                                         pdx = tccp->prcw[resno];
 572                                         pdy = tccp->prch[resno];
 573                                 } else {
 574                                         pdx = 15;
 575                                         pdy = 15;
 576                                 }
 577                                 /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000)  */
 578                                 tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx;
 579                                 tlprcystart = int_floordivpow2(res->y0, pdy) << pdy;
 580                                 brprcxend = int_ceildivpow2(res->x1, pdx) << pdx;
 581                                 brprcyend = int_ceildivpow2(res->y1, pdy) << pdy;
 582                                 res->pw = (brprcxend - tlprcxstart) >> pdx;
 583                                 res->ph = (brprcyend - tlprcystart) >> pdy;
 584
 585                                 if (resno == 0) {
 586                                         tlcbgxstart = tlprcxstart;
 587                                         tlcbgystart = tlprcystart;
 588                                         brcbgxend = brprcxend;
 589                                         brcbgyend = brprcyend;
 590                                         cbgwidthexpn = pdx;
 591                                         cbgheightexpn = pdy;
 592                                 } else {
 593                                         tlcbgxstart = int_ceildivpow2(tlprcxstart, 1);
 594                                         tlcbgystart = int_ceildivpow2(tlprcystart, 1);
 595                                         brcbgxend = int_ceildivpow2(brprcxend, 1);
 596                                         brcbgyend = int_ceildivpow2(brprcyend, 1);
 597                                         cbgwidthexpn = pdx - 1;
 598                                         cbgheightexpn = pdy - 1;
 599                                 }
 600
 601                                 cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn);
 602                                 cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn);
 603
 604                                 for (bandno = 0; bandno < res->numbands; bandno++) {
 605                                         int x0b, y0b;
 606                                         int gain, numbps;
 607                                         j2k_stepsize_t *ss;
 608                                         tcd_band_t *band = &res->bands[bandno];
 609                                         band->bandno = resno == 0 ? 0 : bandno + 1;
 610                                         x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0;
 611                                         y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0;
 612
 613                                         if (band->bandno == 0) {
 614                                                 /* band border (global) */
 615                                                 band->x0 = int_ceildivpow2(tilec->x0, levelno);
 616                                                 band->y0 = int_ceildivpow2(tilec->y0, levelno);
 617                                                 band->x1 = int_ceildivpow2(tilec->x1, levelno);
 618                                                 band->y1 = int_ceildivpow2(tilec->y1, levelno);
 619                                         } else {
 620                                                 /* band border (global) */
 621                                                 band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1);
 622                                                 band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1);
 623                                                 band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1);
 624                                                 band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1);
 625                                         }
 626
 627                                         ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1];
 628                                         gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno);
 629                                         numbps = img->comps[compno].prec + gain;
 630                                         band->stepsize = (int) floor((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn) * 8192.0);
 631                                         band->numbps = ss->expn + tccp->numgbits - 1;   /* WHY -1 ? */
 632
 633                                         band->precincts = (tcd_precinct_t *) malloc(res->pw * res->ph * sizeof(tcd_precinct_t));
 634
 635                                         for (precno = 0; precno < res->pw * res->ph; precno++) {
 636                                                 int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend;
 637                                                 int cbgxstart = tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn);
 638                                                 int cbgystart = tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn);
 639                                                 int cbgxend = cbgxstart + (1 << cbgwidthexpn);
 640                                                 int cbgyend = cbgystart + (1 << cbgheightexpn);
 641                                                 tcd_precinct_t *prc = &band->precincts[precno];
 642                                                 /* precinct size (global) */
 643                                                 prc->x0 = int_max(cbgxstart, band->x0);
 644                                                 prc->y0 = int_max(cbgystart, band->y0);
 645                                                 prc->x1 = int_min(cbgxend, band->x1);
 646                                                 prc->y1 = int_min(cbgyend, band->y1);
 647
 648                                                 tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn;
 649                                                 tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn;
 650                                                 brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn;
 651                                                 brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn;
 652                                                 prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn;
 653                                                 prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn;
 654
 655                                                 prc->cblks = (tcd_cblk_t *) malloc(prc->cw * prc->ch * sizeof(tcd_cblk_t));
 656
 657                                                 prc->incltree = tgt_create(prc->cw, prc->ch);
 658                                                 prc->imsbtree = tgt_create(prc->cw, prc->ch);
 659
 660                                                 for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 661                                                         int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn);
 662                                                         int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn);
 663                                                         int cblkxend = cblkxstart + (1 << cblkwidthexpn);
 664                                                         int cblkyend = cblkystart + (1 << cblkheightexpn);
 665                                                         tcd_cblk_t *cblk = &prc->cblks[cblkno];
 666                                                         /* code-block size (global) */
 667                                                         cblk->x0 = int_max(cblkxstart, prc->x0);
 668                                                         cblk->y0 = int_max(cblkystart, prc->y0);
 669                                                         cblk->x1 = int_min(cblkxend, prc->x1);
 670                                                         cblk->y1 = int_min(cblkyend, prc->y1);
 671                                                 }
 672                                         }
 673                                 }
 674                         }
 675                 }
 676         }
 677         /* tcd_dump(&tcd_image,0); */
 678 }
 679
 680 void tcd_makelayer_fixed(int layno, int final) {
 681   int compno, resno, bandno, precno, cblkno;
 682   int value; //, matrice[tcd_tcp->numlayers][tcd_tile->comps[0].numresolutions][3];
 683   int matrice[10][10][3];
 684   int i,j,k;
 685
 686   /*matrice=(int*)malloc(tcd_tcp->numlayers*tcd_tile->comps[0].numresolutions*3*sizeof(int));*/
 687
 688   for (compno=0; compno<tcd_tile->numcomps; compno++)
 689     {
 690       tcd_tilecomp_t *tilec=&tcd_tile->comps[compno];
 691       for (i=0;i<tcd_tcp->numlayers;i++) {
 692         for (j=0;j<tilec->numresolutions;j++) {
 693           for (k=0;k<3;k++) {
 694             matrice[i][j][k]=(int)(tcd_cp->matrice[i*tilec->numresolutions*3+j*3+k]*(float)(tcd_img->comps[compno].prec/16.0));}}}
 695
 696       for (resno=0; resno<tilec->numresolutions; resno++) {
 697         tcd_resolution_t *res=&tilec->resolutions[resno];
 698         for (bandno=0; bandno<res->numbands; bandno++) {
 699           tcd_band_t *band=&res->bands[bandno];
 700           for (precno=0; precno<res->pw*res->ph; precno++) {
 701             tcd_precinct_t *prc=&band->precincts[precno];
 702             for (cblkno=0; cblkno<prc->cw*prc->ch; cblkno++) {
 703               tcd_cblk_t *cblk=&prc->cblks[cblkno];
 704               tcd_layer_t *layer=&cblk->layers[layno];
 705               int n;
 706               int imsb=tcd_img->comps[compno].prec-cblk->numbps; /* number of bit-plan equal to zero */
 707               /* Correction of the matrix of coefficient to include the IMSB information */
 708
 709               if (layno==0)
 710                 {
 711                   value=matrice[layno][resno][bandno];
 712                   if (imsb>=value)
 713                     value=0;
 714                   else
 715                     value-=imsb;
 716                 } else
 717                   {
 718                     value=matrice[layno][resno][bandno]-matrice[layno-1][resno][bandno];
 719                     if (imsb>=matrice[layno-1][resno][bandno])
 720                       {
 721                         value-=(imsb-matrice[layno-1][resno][bandno]);
 722                         if (value<0) value=0;
 723                       }
 724                   }
 725
 726               if (layno==0)
 727                 cblk->numpassesinlayers=0;
 728
 729               n=cblk->numpassesinlayers;
 730               if (cblk->numpassesinlayers==0)
 731                 {
 732                   if (value!=0)
 733                     n=3*value-2+cblk->numpassesinlayers;
 734                   else
 735                     n=cblk->numpassesinlayers;
 736                 } else
 737                   n=3*value+cblk->numpassesinlayers;
 738
 739               layer->numpasses=n-cblk->numpassesinlayers;
 740
 741               if (!layer->numpasses)
 742                 continue;
 743
 744               if (cblk->numpassesinlayers==0)
 745                 {
 746                   layer->len=cblk->passes[n-1].rate;
 747                   layer->data=cblk->data;
 748                 } else
 749                   {
 750                     layer->len=cblk->passes[n-1].rate-cblk->passes[cblk->numpassesinlayers-1].rate;
 751                     layer->data=cblk->data+cblk->passes[cblk->numpassesinlayers-1].rate;
 752                   }
 753               if (final)
 754                 cblk->numpassesinlayers=n;
 755             }
 756           }
 757         }
 758       }
 759     }
 760 }
 761
 762 void tcd_rateallocate_fixed() {
 763   int layno;
 764
 765   for (layno=0; layno<tcd_tcp->numlayers; layno++)
 766     {
 767       tcd_makelayer_fixed(layno, 1);
 768     }
 769 }
 770
 771 void tcd_makelayer(int layno, double thresh, int final)
 772 {
 773         int compno, resno, bandno, precno, cblkno, passno;
 774         for (compno = 0; compno < tcd_tile->numcomps; compno++) {
 775                 tcd_tilecomp_t *tilec = &tcd_tile->comps[compno];
 776                 for (resno = 0; resno < tilec->numresolutions; resno++) {
 777                         tcd_resolution_t *res = &tilec->resolutions[resno];
 778                         for (bandno = 0; bandno < res->numbands; bandno++) {
 779                                 tcd_band_t *band = &res->bands[bandno];
 780                                 for (precno = 0; precno < res->pw * res->ph; precno++) {
 781                                         tcd_precinct_t *prc = &band->precincts[precno];
 782                                         for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 783                                                 tcd_cblk_t *cblk = &prc->cblks[cblkno];
 784                                                 tcd_layer_t *layer = &cblk->layers[layno];
 785                                                 int n;
 786
 787                                                 if (layno == 0) {
 788                                                         cblk->numpassesinlayers = 0;
 789                                                 }
 790                                                 n = cblk->numpassesinlayers;
 791                                                 for (passno = cblk->numpassesinlayers;
 792                                                                  passno < cblk->totalpasses; passno++) {
 793                                                         int dr;
 794                                                         double dd;
 795                                                         tcd_pass_t *pass = &cblk->passes[passno];
 796                                                         if (n == 0) {
 797                                                                 dr = pass->rate;
 798                                                                 dd = pass->distortiondec;
 799                                                         } else {
 800                                                                 dr = pass->rate - cblk->passes[n - 1].rate;
 801                                                                 dd = pass->distortiondec - cblk->passes[n - 1].distortiondec;
 802                                                         }
 803                                                         if (dr == 0) {
 804                                                                 if (dd != 0)
 805                                                                         n = passno + 1;
 806                                                                 continue;
 807                                                         }
 808                                                         if (dd / dr > thresh)
 809                                                                 n = passno + 1;
 810                                                 }
 811                                                 layer->numpasses = n - cblk->numpassesinlayers;
 812                                                 if (!layer->numpasses)
 813                                                         continue;
 814                                                 if (cblk->numpassesinlayers == 0) {
 815                                                         layer->len = cblk->passes[n - 1].rate;
 816                                                         layer->data = cblk->data;
 817                                                         layer->disto = cblk->passes[n - 1].distortiondec;
 818                                                 } else {
 819                                                         layer->len = cblk->passes[n - 1].rate -
 820                                                           cblk->passes[cblk->numpassesinlayers - 1].rate;
 821                                                         layer->data = cblk->data + cblk->passes[cblk->numpassesinlayers - 1].rate;
 822                                                         layer->disto = cblk->passes[n - 1].distortiondec -
 823                                                           cblk->passes[cblk->numpassesinlayers - 1].distortiondec;
 824                                                 }
 825
 826                                                 if (final)
 827                                                         cblk->numpassesinlayers = n;
 828                                         }
 829                                 }
 830                         }
 831                 }
 832         }
 833 }
 834
 835 void tcd_rateallocate(unsigned char *dest, int len, info_image * info_IM)
 836 {
 837         int compno, resno, bandno, precno, cblkno, passno, layno;
 838         double min, max;
 839         min = DBL_MAX;
 840         max = 0;
 841
 842         for (compno = 0; compno < tcd_tile->numcomps; compno++) {
 843                 tcd_tilecomp_t *tilec = &tcd_tile->comps[compno];
 844                 for (resno = 0; resno < tilec->numresolutions; resno++) {
 845                         tcd_resolution_t *res = &tilec->resolutions[resno];
 846                         for (bandno = 0; bandno < res->numbands; bandno++) {
 847                                 tcd_band_t *band = &res->bands[bandno];
 848                                 for (precno = 0; precno < res->pw * res->ph; precno++) {
 849                                         tcd_precinct_t *prc = &band->precincts[precno];
 850                                         for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
 851                                                 tcd_cblk_t *cblk = &prc->cblks[cblkno];
 852                                                 for (passno = 0; passno < cblk->totalpasses; passno++) {
 853                                                         tcd_pass_t *pass = &cblk->passes[passno];
 854                                                         int dr;
 855                                                         double dd, rdslope;
 856                                                         if (passno == 0) {
 857                                                                 dr = pass->rate;
 858                                                                 dd = pass->distortiondec;
 859                                                         } else {
 860                                                                 dr = pass->rate - cblk->passes[passno - 1].rate;
 861                                                                 dd = pass->distortiondec - cblk->passes[passno - 1].distortiondec;
 862                                                         }
 863                                                         if (dr == 0) {
 864                                                                 continue;
 865                                                         }
 866                                                         rdslope = dd / dr;
 867                                                         if (rdslope < min) {
 868                                                                 min = rdslope;
 869                                                         }
 870                                                         if (rdslope > max) {
 871                                                                 max = rdslope;
 872                                                         }
 873                                                 } /* passno */
 874                                         } /* cbklno */
 875                                 } /* precno */
 876                         } /* bandno */
 877                 } /* resno */
 878         } /* compno */
 879         if (info_IM->index_on) { /* Threshold for Marcela Index */
 880           info_IM->tile[tcd_tileno].thresh=(double*)malloc(tcd_tcp->numlayers*sizeof(double));
 881         }
 882         for (layno = 0; layno < tcd_tcp->numlayers; layno++) {
 883                 volatile double lo = min;
 884                 volatile double hi = max;
 885                 volatile int success = 0;
 886                 volatile int maxlen = int_min(tcd_tcp->rates[layno], len);
 887                 volatile double goodthresh;
 888                 volatile int goodlen;
 889                 volatile int i;
 890
 891                 for (i = 0; i < 32; i++) {
 892                         volatile double thresh = (lo + hi) / 2;
 893                         int l;
 894
 895                         tcd_makelayer(layno, thresh, 0);
 896
 897                         l = t2_encode_packets(tcd_img, tcd_cp, tcd_tileno, tcd_tile, layno + 1, dest, maxlen, info_IM);
 898                         /* fprintf(stderr, "rate alloc: len=%d, max=%d\n", l, maxlen); */
 899                         if (l == -999) {
 900                                 lo = thresh;
 901                                 continue;
 902                         }
 903
 904                         hi = thresh;
 905                         success = 1;
 906                         goodthresh = thresh;
 907                         goodlen = l;
 908                 }
 909
 910                 if (!success) {
 911                         longjmp(j2k_error, 1);
 912                 }
 913
 914                 if (info_IM->index_on) { /* Threshold for Marcela Index */
 915                   info_IM->tile[tcd_tileno].thresh[layno]=goodthresh;
 916                 }
 917                 tcd_makelayer(layno, goodthresh, 1);
 918         }
 919 }
 920
 921 int tcd_encode_tile_pxm(int tileno, unsigned char *dest, int len, info_image * info_IM)
 922 {
 923         int compno;
 924         int l;
 925         clock_t time7;
 926         tcd_tile_t *tile;
 927         j2k_tcp_t *tcp = &tcd_cp->tcps[0];
 928         j2k_tccp_t *tccp = &tcp->tccps[0];
 929
 930         tcd_tileno = tileno;
 931         tcd_tile = tcd_image.tiles;
 932         tcd_tcp = &tcd_cp->tcps[tileno];
 933         tile = tcd_tile;
 934         /* INDEX >> "Precinct_nb_X et Precinct_nb_Y" */
 935         if (info_IM->index_on) {
 936                 tcd_tilecomp_t *tilec_idx = &tile->comps[0];    /* old parser version */
 937                 tcd_resolution_t *res_idx = &tilec_idx->resolutions[0]; /* old parser version */
 938
 939                 info_IM->tile[tileno].pw = res_idx->pw;
 940                 info_IM->tile[tileno].ph = res_idx->ph;
 941
 942                 info_IM->pw = res_idx->pw;      /* old parser version */
 943                 info_IM->ph = res_idx->ph;      /* old parser version */
 944                 info_IM->pdx = 1 << tccp->prcw[tccp->numresolutions - 1];
 945                 info_IM->pdy = 1 << tccp->prch[tccp->numresolutions - 1];
 946         }
 947         /* << INDEX */
 948
 949 /*---------------TILE-------------------*/
 950
 951         time7 = clock();
 952
 953         for (compno = 0; compno < tile->numcomps; compno++) {
 954                 FILE *src;
 955                 char tmp[256];
 956                 int k;
 957                 unsigned char elmt;
 958                 int i, j;
 959                 int tw, w;
 960                 tcd_tilecomp_t *tilec = &tile->comps[compno];
 961                 int adjust = tcd_img->comps[compno].sgnd ? 0 : 1 << (tcd_img->comps[compno].prec - 1);
 962                 int offset_x, offset_y;
 963
 964                 offset_x = int_ceildiv(tcd_img->x0, tcd_img->comps[compno].dx);
 965                 offset_y = int_ceildiv(tcd_img->y0, tcd_img->comps[compno].dy);
 966                 tw = tilec->x1 - tilec->x0;
 967                 w = int_ceildiv(tcd_img->x1 - tcd_img->x0, tcd_img->comps[compno].dx);
 968                 sprintf(tmp, "Compo%d", compno);        /* component file */
 969                 src = fopen(tmp, "rb");
 970                 if (!src) {
 971                         fprintf(stderr, "failed to open %s for reading\n", tmp);
 972                         return 1;
 973                 }
 974
 975                 /* read the Compo file to extract data of the tile */
 976                 k = 0;
 977                 fseek(src, (tilec->x0 - offset_x) + (tilec->y0 - offset_y) * w, SEEK_SET);
 978                 k = (tilec->x0 - offset_x) + (tilec->y0 - offset_y) * w;
 979                 for (j = tilec->y0; j < tilec->y1; j++) {
 980                         for (i = tilec->x0; i < tilec->x1; i++) {
 981                                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
 982                                         elmt = fgetc(src);
 983                                         tilec->data[i - tilec->x0 + (j - tilec->y0) * tw] = elmt - adjust;
 984                                         k++;
 985                                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
 986                                         elmt = fgetc(src);
 987                                         tilec->data[i - tilec->x0 + (j - tilec->y0) * tw] = (elmt - adjust) << 13;
 988                                         k++;
 989                                 }
 990                         }
 991                         fseek(src, (tilec->x0 - offset_x) + (j + 1 - offset_y) * w - k, SEEK_CUR);
 992                         k = tilec->x0 - offset_x + (j + 1 - offset_y) * w;
 993
 994                 }
 995                 fclose(src);
 996         }
 997
 998 /*----------------MCT-------------------*/
 999
1000         if (tcd_tcp->mct) {
1001                 if (tcd_tcp->tccps[0].qmfbid == 0) {
1002                         mct_encode_real(tile->comps[0].data, tile->comps[1].data,tile->comps[2].data,
1003                                         (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1004                 } else {
1005                         mct_encode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1006                                    (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1007                 }
1008         }
1009 /*----------------DWT---------------------*/
1010
1011         /* time3=clock(); */
1012         for (compno = 0; compno < tile->numcomps; compno++) {
1013                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1014                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1015                         dwt_encode(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1016                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1017                         dwt_encode_real(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1018                 }
1019         }
1020 /*------------------TIER1-----------------*/
1021
1022         t1_init_luts();
1023         t1_encode_cblks(tile, tcd_tcp);
1024
1025 /*-----------RATE-ALLOCATE------------------*/
1026         info_IM->index_write = 0;                       /* INDEX     */
1027
1028         if (tcd_cp->disto_alloc)
1029           /* Normal Rate/distortion allocation */
1030           tcd_rateallocate(dest, len, info_IM);
1031         else
1032           /* Fixed layer allocation */
1033           tcd_rateallocate_fixed();
1034
1035 /*--------------TIER2------------------*/
1036         info_IM->index_write = 1;                       /* INDEX     */
1037         l = t2_encode_packets(tcd_img, tcd_cp, tileno, tile, tcd_tcp->numlayers, dest, len, info_IM);
1038 /*---------------CLEAN-------------------*/
1039
1040         time7 = clock() - time7;
1041         printf("total:     %ld.%.3ld s\n", time7 / CLOCKS_PER_SEC, (time7 % CLOCKS_PER_SEC) * 1000 / CLOCKS_PER_SEC);
1042
1043         /* cleaning memory */
1044         for (compno = 0; compno < tile->numcomps; compno++) {
1045                 tilec = &tile->comps[compno];
1046                 free(tilec->data);
1047         }
1048
1049         return l;
1050 }
1051
1052 int tcd_encode_tile_pgx(int tileno, unsigned char *dest, int len, info_image * info_IM)
1053 {
1054         int compno;
1055         int l;
1056         clock_t time7;
1057         tcd_tile_t *tile;
1058         j2k_tcp_t *tcp = &tcd_cp->tcps[0];
1059         j2k_tccp_t *tccp = &tcp->tccps[0];
1060
1061         tcd_tileno = tileno;
1062         tcd_tile = tcd_image.tiles;
1063         tcd_tcp = &tcd_cp->tcps[tileno];
1064         tile = tcd_tile;
1065         /* INDEX >> "Precinct_nb_X et Precinct_nb_Y" */
1066         if (info_IM->index_on) {
1067                 tcd_tilecomp_t *tilec_idx = &tile->comps[0];
1068                 tcd_resolution_t *res_idx = &tilec_idx->resolutions[0];
1069                 info_IM->tile[tileno].pw = res_idx->pw;
1070                 info_IM->tile[tileno].ph = res_idx->ph;
1071                 info_IM->pw = res_idx->pw;      /* old parser version */
1072                 info_IM->ph = res_idx->ph;      /* old parser version */
1073                 info_IM->pdx = 1 << tccp->prcw[tccp->numresolutions - 1];
1074                 info_IM->pdy = 1 << tccp->prch[tccp->numresolutions - 1];
1075         }
1076         /* << INDEX */
1077 /*---------------TILE-------------------*/
1078         time7 = clock();
1079
1080         for (compno = 0; compno < tile->numcomps; compno++) {
1081                 FILE *src;
1082                 char tmp[256];
1083                 int k;
1084                 int elmt;
1085                 int i, j;
1086                 int tw, w;
1087                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1088                 int adjust = tcd_img->comps[compno].sgnd ? 0 : 1 << (tcd_img->comps[compno].prec - 1);
1089                 int offset_x, offset_y;
1090
1091                 offset_x = int_ceildiv(tcd_img->x0, tcd_img->comps[compno].dx);
1092                 offset_y = int_ceildiv(tcd_img->y0, tcd_img->comps[compno].dy);
1093                 tw = tilec->x1 - tilec->x0;
1094                 w = int_ceildiv(tcd_img->x1 - tcd_img->x0, tcd_img->comps[compno].dx);
1095                 sprintf(tmp, "bandtile%d", tileno / tcd_cp->tw + 1);    /* bandtile file opening */
1096                 src = fopen(tmp, "rb");
1097                 if (!src) {
1098                         fprintf(stderr, "failed to open %s for reading\n", tmp);
1099                         return 1;
1100                 }
1101                 /* Extract data from bandtile file limited to the current tile */
1102                 k = 0;
1103                 while (k < tilec->x0 - offset_x) {
1104                         k++;
1105                         fscanf(src, "%d", &elmt);
1106                 }
1107
1108                 for (j = 0; j < tilec->y1 - tilec->y0; j++) {
1109                         for (i = tilec->x0; i < tilec->x1; i++) {
1110                                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1111                                         fscanf(src, "%d", &elmt);
1112                                         tilec->data[i - tilec->x0 + (j) * tw] = elmt - adjust;
1113                                         k++;
1114                                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1115                                         fscanf(src, "%d", &elmt);
1116                                         tilec->data[i - tilec->x0 + (j) * tw] = (elmt - adjust) << 13;
1117                                         k++;
1118                                 }
1119                         }
1120                         while (k < tilec->x0 - offset_x + (j + 1) * w) {
1121                                 k++;
1122                                 fscanf(src, "%d", &elmt);
1123                         }
1124                 }
1125                 fclose(src);
1126         }
1127
1128 /*----------------MCT-------------------*/
1129
1130         if (tcd_tcp->mct) {
1131                 if (tcd_tcp->tccps[0].qmfbid == 0) {
1132                         mct_encode_real(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1133                                         (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1134                 } else {
1135                         mct_encode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1136                                    (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1137                 }
1138         }
1139
1140 /*----------------DWT---------------------*/
1141
1142         for (compno = 0; compno < tile->numcomps; compno++) {
1143                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1144                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1145                         dwt_encode(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1146                 } else if (tcd_tcp->tccps[compno].qmfbid == 0) {
1147                         dwt_encode_real(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1148                 }
1149         }
1150
1151 /*------------------TIER1-----------------*/
1152
1153         t1_init_luts();
1154         t1_encode_cblks(tile, tcd_tcp);
1155
1156 /*-----------RATE-ALLOCATE------------------*/
1157         info_IM->index_write = 0;                       /* INDEX */
1158
1159         info_IM->index_write=0; /* INDEX */
1160
1161         if (tcd_cp->disto_alloc)
1162           /* Normal Rate/distortion allocation */
1163           tcd_rateallocate(dest, len, info_IM);
1164         else
1165           /* Fixed layer allocation */
1166           tcd_rateallocate_fixed();
1167
1168 /*--------------TIER2------------------*/
1169         info_IM->index_write = 1;                       /* INDEX */
1170
1171         l = t2_encode_packets(tcd_img, tcd_cp, tileno, tile, tcd_tcp->numlayers, dest, len, info_IM);
1172
1173  /*---------------CLEAN-------------------*/
1174         time7 = clock() - time7;
1175         printf("total:     %ld.%.3ld s\n", time7 / CLOCKS_PER_SEC, (time7 % CLOCKS_PER_SEC) * 1000 / CLOCKS_PER_SEC);
1176
1177         for (compno = 0; compno < tile->numcomps; compno++) {
1178                 tilec = &tile->comps[compno];
1179                 free(tilec->data);
1180         }
1181
1182         return l;
1183 }
1184
1185
1186 int tcd_decode_tile(unsigned char *src, int len, int tileno)
1187 {
1188         int l;
1189         int compno;
1190         int eof = 0;
1191         clock_t time1, time2, time3, time4, time5, time6;
1192         tcd_tile_t *tile;
1193
1194         tcd_tileno = tileno;
1195         tcd_tile = &tcd_image.tiles[tileno];
1196         tcd_tcp = &tcd_cp->tcps[tileno];
1197         tile = tcd_tile;
1198
1199         time6 = clock();
1200
1201         time1 = clock();
1202         printf("tile decoding time %d/%d:\n", tileno + 1, tcd_cp->tw * tcd_cp->th);
1203
1204         l = t2_decode_packets(src, len, tcd_img, tcd_cp, tileno, tile);
1205
1206         if (l == -999) {
1207                 eof = 1;
1208                 fprintf(stderr, "tcd_decode: incomplete bistream\n");
1209         }
1210         time1 = clock() - time1;
1211
1212         /* printf("tier 2:    %ld.%.3ld s\n", time1/CLOCKS_PER_SEC, (time1%CLOCKS_PER_SEC)*1000/CLOCKS_PER_SEC);    */
1213
1214         time2 = clock();
1215         t1_init_luts();
1216         t1_decode_cblks(tile, tcd_tcp);
1217         time2 = clock() - time2;
1218         /* printf("tier 1:    %ld.%.3ld s\n", time2/CLOCKS_PER_SEC, (time2%CLOCKS_PER_SEC)*1000/CLOCKS_PER_SEC); */
1219
1220         time3 = clock();
1221         for (compno = 0; compno < tile->numcomps; compno++)
1222           {
1223             tcd_tilecomp_t *tilec = &tile->comps[compno];
1224             if (tcd_tcp->tccps[compno].qmfbid == 1)
1225               {
1226                 dwt_decode(tilec->data, tilec->x1 - tilec->x0,tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1227               }  else
1228                 { /*if (tcd_tcp->tccps[compno].qmfbid == 0) {*/
1229                   dwt_decode_real(tilec->data, tilec->x1 - tilec->x0, tilec->y1 - tilec->y0, tilec, tilec->numresolutions - 1);
1230                 }
1231           }
1232
1233         time3 = clock() - time3;
1234         /* printf("dwt:       %ld.%.3ld s\n", time3/CLOCKS_PER_SEC, (time3%CLOCKS_PER_SEC)*1000/CLOCKS_PER_SEC); */
1235
1236         time4 = clock();
1237         if (tcd_tcp->mct) {
1238                 if (tcd_tcp->tccps[0].qmfbid == 0) {
1239                         mct_decode_real(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1240                                         (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1241                 } else {
1242                         mct_decode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data,
1243                                    (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0));
1244                 }
1245         }
1246         time4 = clock() - time4;
1247         /* printf("mct:       %ld.%.3ld s\n", time4/CLOCKS_PER_SEC, (time4%CLOCKS_PER_SEC)*1000/CLOCKS_PER_SEC); */
1248
1249         time5 = clock();
1250         for (compno = 0; compno < tile->numcomps; compno++) {
1251                 tcd_tilecomp_t *tilec = &tile->comps[compno];
1252                 int adjust = tcd_img->comps[compno].sgnd ? 0 : 1 << (tcd_img->comps[compno].prec - 1);
1253                 int min = tcd_img->comps[compno].sgnd ? -(1 << (tcd_img->comps[compno].prec - 1)) : 0;
1254                 int max = tcd_img->comps[compno].sgnd ? (1 << (tcd_img->comps[compno].prec - 1)) - 1 : (1 << tcd_img->comps[compno].prec) - 1;
1255                 int tw = tilec->x1 - tilec->x0;
1256                 int w = int_ceildiv(tcd_img->x1 - tcd_img->x0, tcd_img->comps[compno].dx);
1257                 int i, j;
1258                 int offset_x = int_ceildiv(tcd_img->x0, tcd_img->comps[compno].dx);
1259                 int offset_y = int_ceildiv(tcd_img->y0, tcd_img->comps[compno].dy);
1260
1261                 for (j = tilec->y0; j < tilec->y1; j++) {
1262                         for (i = tilec->x0; i < tilec->x1; i++) {
1263                                 int v;
1264                                 if (tcd_tcp->tccps[compno].qmfbid == 1) {
1265                                         v = tilec->data[i - tilec->x0 + (j - tilec->y0) * tw];
1266                                 } else {  /* if (tcd_tcp->tccps[compno].qmfbid == 0) */
1267                                         v = tilec->data[i - tilec->x0 + (j - tilec->y0) * tw] >> 13;
1268                                 }
1269                                 v += adjust;
1270
1271                                 /* tcd_img->comps[compno].data[i+j*w]=int_clamp(v, min, max); */
1272                                 tcd_img->comps[compno].data[(i - offset_x) + (j - offset_y) * w] = int_clamp(v, min, max);      /* change ! */
1273                         }
1274                 }
1275         }
1276         time5 = clock() - time5;
1277         /* printf("tile->img: %ld.%.3ld s\n", time5/CLOCKS_PER_SEC, (time5%CLOCKS_PER_SEC)*1000/CLOCKS_PER_SEC); */
1278
1279         time6 = clock() - time6;
1280         printf("total:     %ld.%.3ld s\n\n", time6 / CLOCKS_PER_SEC, (time6 % CLOCKS_PER_SEC) * 1000 / CLOCKS_PER_SEC);
1281
1282         if (eof) {
1283                 longjmp(j2k_error, 1);
1284         }
1285
1286         return l;
1287 }