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j2k.c

/*
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
 * Copyright (c) 2005, Hervé Drolon, FreeImage Team
 * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "opj_includes.h"
#include <assert.h>

/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
/*@{*/

/** @name Local static functions */
/*@{*/

/**
Write the SOC marker (Start Of Codestream)
@param j2k J2K handle
*/
static void j2k_write_soc(opj_j2k_t *j2k);
/**
Read the SOC marker (Start of Codestream)
@param j2k J2K handle
*/
static void j2k_read_soc(opj_j2k_t *j2k);
/**
Write the SIZ marker (image and tile size)
@param j2k J2K handle
*/
static void j2k_write_siz(opj_j2k_t *j2k);
/**
Read the SIZ marker (image and tile size)
@param j2k J2K handle
*/
static void j2k_read_siz(opj_j2k_t *j2k);
/**
Write the COM marker (comment)
@param j2k J2K handle
*/
static void j2k_write_com(opj_j2k_t *j2k);
/**
Read the COM marker (comment)
@param j2k J2K handle
*/
static void j2k_read_com(opj_j2k_t *j2k);
/**
Write the value concerning the specified component in the marker COD and COC
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_cox(opj_j2k_t *j2k, int compno);
/**
Read the value concerning the specified component in the marker COD and COC
@param j2k J2K handle
@param compno Number of the component concerned by the information read
*/
static void j2k_read_cox(opj_j2k_t *j2k, int compno);
/**
Write the COD marker (coding style default)
@param j2k J2K handle
*/
static void j2k_write_cod(opj_j2k_t *j2k);
/**
Read the COD marker (coding style default)
@param j2k J2K handle
*/
static void j2k_read_cod(opj_j2k_t *j2k);
/**
Write the COC marker (coding style component)
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_coc(opj_j2k_t *j2k, int compno);
/**
Read the COC marker (coding style component)
@param j2k J2K handle
*/
static void j2k_read_coc(opj_j2k_t *j2k);
/**
Write the value concerning the specified component in the marker QCD and QCC
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_qcx(opj_j2k_t *j2k, int compno);
/**
Read the value concerning the specified component in the marker QCD and QCC
@param j2k J2K handle
@param compno Number of the component concern by the information read
@param len Length of the information in the QCX part of the marker QCD/QCC
*/
static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len);
/**
Write the QCD marker (quantization default)
@param j2k J2K handle
*/
static void j2k_write_qcd(opj_j2k_t *j2k);
/**
Read the QCD marker (quantization default)
@param j2k J2K handle
*/
static void j2k_read_qcd(opj_j2k_t *j2k);
/**
Write the QCC marker (quantization component)
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_qcc(opj_j2k_t *j2k, int compno);
/**
Read the QCC marker (quantization component)
@param j2k J2K handle
*/
static void j2k_read_qcc(opj_j2k_t *j2k);
/**
Write the POC marker (progression order change)
@param j2k J2K handle
*/
static void j2k_write_poc(opj_j2k_t *j2k);
/**
Read the POC marker (progression order change)
@param j2k J2K handle
*/
static void j2k_read_poc(opj_j2k_t *j2k);
/**
Read the CRG marker (component registration)
@param j2k J2K handle
*/
static void j2k_read_crg(opj_j2k_t *j2k);
/**
Read the TLM marker (tile-part lengths)
@param j2k J2K handle
*/
static void j2k_read_tlm(opj_j2k_t *j2k);
/**
Read the PLM marker (packet length, main header)
@param j2k J2K handle
*/
static void j2k_read_plm(opj_j2k_t *j2k);
/**
Read the PLT marker (packet length, tile-part header)
@param j2k J2K handle
*/
static void j2k_read_plt(opj_j2k_t *j2k);
/**
Read the PPM marker (packet packet headers, main header)
@param j2k J2K handle
*/
static void j2k_read_ppm(opj_j2k_t *j2k);
/**
Read the PPT marker (packet packet headers, tile-part header)
@param j2k J2K handle
*/
static void j2k_read_ppt(opj_j2k_t *j2k);
/**
Write the SOT marker (start of tile-part)
@param j2k J2K handle
*/
static void j2k_write_sot(opj_j2k_t *j2k);
/**
Read the SOT marker (start of tile-part)
@param j2k J2K handle
*/
static void j2k_read_sot(opj_j2k_t *j2k);
/**
Write the SOD marker (start of data)
@param j2k J2K handle
@param tile_coder Pointer to a TCD handle
*/
static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder);
/**
Read the SOD marker (start of data)
@param j2k J2K handle
*/
static void j2k_read_sod(opj_j2k_t *j2k);
/**
Write the RGN marker (region-of-interest)
@param j2k J2K handle
@param compno Number of the component concerned by the information written
@param tileno Number of the tile concerned by the information written
*/
static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno);
/**
Read the RGN marker (region-of-interest)
@param j2k J2K handle
*/
static void j2k_read_rgn(opj_j2k_t *j2k);
/**
Write the EOC marker (end of codestream)
@param j2k J2K handle
*/
static void j2k_write_eoc(opj_j2k_t *j2k);
/**
Read the EOC marker (end of codestream)
@param j2k J2K handle
*/
static void j2k_read_eoc(opj_j2k_t *j2k);
/**
Read an unknown marker
@param j2k J2K handle
*/
static void j2k_read_unk(opj_j2k_t *j2k);

/*@}*/

/*@}*/

/* ----------------------------------------------------------------------- */

void j2k_dump_image(FILE *fd, opj_image_t * img) {
      int compno;
      fprintf(fd, "image {\n");
      fprintf(fd, "  x0=%d, y0=%d, x1=%d, y1=%d\n", img->x0, img->y0, img->x1, img->y1);
      fprintf(fd, "  numcomps=%d\n", img->numcomps);
      for (compno = 0; compno < img->numcomps; compno++) {
            opj_image_comp_t *comp = &img->comps[compno];
            fprintf(fd, "  comp %d {\n", compno);
            fprintf(fd, "    dx=%d, dy=%d\n", comp->dx, comp->dy);
            fprintf(fd, "    prec=%d\n", comp->prec);
            fprintf(fd, "    sgnd=%d\n", comp->sgnd);
            fprintf(fd, "  }\n");
      }
      fprintf(fd, "}\n");
}

void j2k_dump_cp(FILE *fd, opj_image_t * img, opj_cp_t * cp) {
      int tileno, compno, layno, bandno, resno, numbands;
      fprintf(fd, "coding parameters {\n");
      fprintf(fd, "  tx0=%d, ty0=%d\n", cp->tx0, cp->ty0);
      fprintf(fd, "  tdx=%d, tdy=%d\n", cp->tdx, cp->tdy);
      fprintf(fd, "  tw=%d, th=%d\n", cp->tw, cp->th);
      for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
            opj_tcp_t *tcp = &cp->tcps[tileno];
            fprintf(fd, "  tile %d {\n", tileno);
            fprintf(fd, "    csty=%x\n", tcp->csty);
            fprintf(fd, "    prg=%d\n", tcp->prg);
            fprintf(fd, "    numlayers=%d\n", tcp->numlayers);
            fprintf(fd, "    mct=%d\n", tcp->mct);
            fprintf(fd, "    rates=");
            for (layno = 0; layno < tcp->numlayers; layno++) {
                  fprintf(fd, "%d ", tcp->rates[layno]);
            }
            fprintf(fd, "\n");
            for (compno = 0; compno < img->numcomps; compno++) {
                  opj_tccp_t *tccp = &tcp->tccps[compno];
                  fprintf(fd, "    comp %d {\n", compno);
                  fprintf(fd, "      csty=%x\n", tccp->csty);
                  fprintf(fd, "      numresolutions=%d\n", tccp->numresolutions);
                  fprintf(fd, "      cblkw=%d\n", tccp->cblkw);
                  fprintf(fd, "      cblkh=%d\n", tccp->cblkh);
                  fprintf(fd, "      cblksty=%x\n", tccp->cblksty);
                  fprintf(fd, "      qmfbid=%d\n", tccp->qmfbid);
                  fprintf(fd, "      qntsty=%d\n", tccp->qntsty);
                  fprintf(fd, "      numgbits=%d\n", tccp->numgbits);
                  fprintf(fd, "      roishift=%d\n", tccp->roishift);
                  fprintf(fd, "      stepsizes=");
                  numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2;
                  for (bandno = 0; bandno < numbands; bandno++) {
                        fprintf(fd, "(%d,%d) ", tccp->stepsizes[bandno].mant,
                              tccp->stepsizes[bandno].expn);
                  }
                  fprintf(fd, "\n");
                  
                  if (tccp->csty & J2K_CCP_CSTY_PRT) {
                        fprintf(fd, "      prcw=");
                        for (resno = 0; resno < tccp->numresolutions; resno++) {
                              fprintf(fd, "%d ", tccp->prcw[resno]);
                        }
                        fprintf(fd, "\n");
                        fprintf(fd, "      prch=");
                        for (resno = 0; resno < tccp->numresolutions; resno++) {
                              fprintf(fd, "%d ", tccp->prch[resno]);
                        }
                        fprintf(fd, "\n");
                  }
                  fprintf(fd, "    }\n");
            }
            fprintf(fd, "  }\n");
      }
      fprintf(fd, "}\n");
}

/* ----------------------------------------------------------------------- */

00307 static void j2k_write_soc(opj_j2k_t *j2k) {
      opj_cio_t *cio = j2k->cio;
      cio_write(cio, J2K_MS_SOC, 2);
}

00312 static void j2k_read_soc(opj_j2k_t *j2k) {
      j2k->state = J2K_STATE_MHSIZ;
}

00316 static void j2k_write_siz(opj_j2k_t *j2k) {
      int i;
      int lenp, len;

      opj_cio_t *cio = j2k->cio;
      opj_image_t *image = j2k->image;
      opj_cp_t *cp = j2k->cp;
      
      cio_write(cio, J2K_MS_SIZ, 2);      /* SIZ */
      lenp = cio_tell(cio);
      cio_skip(cio, 2);
      cio_write(cio, 0, 2);               /* Rsiz (capabilities) */
      cio_write(cio, image->x1, 4); /* Xsiz */
      cio_write(cio, image->y1, 4); /* Ysiz */
      cio_write(cio, image->x0, 4); /* X0siz */
      cio_write(cio, image->y0, 4); /* Y0siz */
      cio_write(cio, cp->tdx, 4);         /* XTsiz */
      cio_write(cio, cp->tdy, 4);         /* YTsiz */
      cio_write(cio, cp->tx0, 4);         /* XT0siz */
      cio_write(cio, cp->ty0, 4);         /* YT0siz */
      cio_write(cio, image->numcomps, 2); /* Csiz */
      for (i = 0; i < image->numcomps; i++) {
            cio_write(cio, image->comps[i].prec - 1 + (image->comps[i].sgnd << 7), 1);    /* Ssiz_i */
            cio_write(cio, image->comps[i].dx, 1);    /* XRsiz_i */
            cio_write(cio, image->comps[i].dy, 1);    /* YRsiz_i */
      }
      len = cio_tell(cio) - lenp;
      cio_seek(cio, lenp);
      cio_write(cio, len, 2);       /* Lsiz */
      cio_seek(cio, lenp + len);
}

00348 static void j2k_read_siz(opj_j2k_t *j2k) {
      int len, i;
      
      opj_cio_t *cio = j2k->cio;
      opj_image_t *image = j2k->image;
      opj_cp_t *cp = j2k->cp;
      
      len = cio_read(cio, 2);             /* Lsiz */
      cio_read(cio, 2);                   /* Rsiz (capabilities) */
      image->x1 = cio_read(cio, 4); /* Xsiz */
      image->y1 = cio_read(cio, 4); /* Ysiz */
      image->x0 = cio_read(cio, 4); /* X0siz */
      image->y0 = cio_read(cio, 4); /* Y0siz */
      cp->tdx = cio_read(cio, 4);         /* XTsiz */
      cp->tdy = cio_read(cio, 4);         /* YTsiz */
      cp->tx0 = cio_read(cio, 4);         /* XT0siz */
      cp->ty0 = cio_read(cio, 4);         /* YT0siz */
      
      image->numcomps = cio_read(cio, 2); /* Csiz */
      image->comps = (opj_image_comp_t *) opj_malloc(image->numcomps * sizeof(opj_image_comp_t));
      for (i = 0; i < image->numcomps; i++) {
            int tmp, w, h;
            tmp = cio_read(cio, 1);       /* Ssiz_i */
            image->comps[i].prec = (tmp & 0x7f) + 1;
            image->comps[i].sgnd = tmp >> 7;
            image->comps[i].dx = cio_read(cio, 1);    /* XRsiz_i */
            image->comps[i].dy = cio_read(cio, 1);    /* YRsiz_i */
            
            /* TODO: unused ? */
            w = int_ceildiv(image->x1 - image->x0, image->comps[i].dx);
            h = int_ceildiv(image->y1 - image->y0, image->comps[i].dy);

            image->comps[i].resno_decoded = 0;  /* number of resolution decoded */
            image->comps[i].factor = 0;               /* reducing factor per component */
      }
      
      cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx);
      cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy);
      cp->tcps = (opj_tcp_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tcp_t));
      cp->tileno = (int *) opj_malloc(cp->tw * cp->th * sizeof(int));
      cp->tileno_size = 0;
      
      for (i = 0; i < cp->tw * cp->th; i++) {
            cp->tcps[i].POC = 0;
            cp->tcps[i].numpocs = 0;
            cp->tcps[i].first = 1;
      }
      
      /* Initialization for PPM marker */
      cp->ppm = 0;
      cp->ppm_data = NULL;
      cp->ppm_data_first = NULL;
      cp->ppm_previous = 0;
      cp->ppm_store = 0;
      
      j2k->default_tcp->tccps = (opj_tccp_t *) opj_malloc(sizeof(opj_tccp_t) * image->numcomps);
      for (i = 0; i < cp->tw * cp->th; i++) {
            cp->tcps[i].tccps = (opj_tccp_t *) opj_malloc(sizeof(opj_tccp_t) * image->numcomps);
      }
      j2k->tile_data = (unsigned char **) opj_malloc(cp->tw * cp->th * sizeof(unsigned char *));
      j2k->tile_len = (int *) opj_malloc(cp->tw * cp->th * sizeof(int));
      j2k->state = J2K_STATE_MH;
}

00412 static void j2k_write_com(opj_j2k_t *j2k) {
      unsigned int i;
      int lenp, len;

      if(j2k->cp->comment) {
            opj_cio_t *cio = j2k->cio;
            char *comment = j2k->cp->comment;

            cio_write(cio, J2K_MS_COM, 2);
            lenp = cio_tell(cio);
            cio_skip(cio, 2);
            cio_write(cio, 0, 2);
            for (i = 0; i < strlen(comment); i++) {
                  cio_write(cio, comment[i], 1);
            }
            len = cio_tell(cio) - lenp;
            cio_seek(cio, lenp);
            cio_write(cio, len, 2);
            cio_seek(cio, lenp + len);
      }
}

00434 static void j2k_read_com(opj_j2k_t *j2k) {
      int len;
      
      opj_cio_t *cio = j2k->cio;

      len = cio_read(cio, 2);
      cio_skip(cio, len - 2);  
}

00443 static void j2k_write_cox(opj_j2k_t *j2k, int compno) {
      int i;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
      opj_tccp_t *tccp = &tcp->tccps[compno];
      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, tccp->numresolutions - 1, 1);    /* SPcox (D) */
      cio_write(cio, tccp->cblkw - 2, 1);                   /* SPcox (E) */
      cio_write(cio, tccp->cblkh - 2, 1);                   /* SPcox (F) */
      cio_write(cio, tccp->cblksty, 1);                     /* SPcox (G) */
      cio_write(cio, tccp->qmfbid, 1);                      /* SPcox (H) */
      
      if (tccp->csty & J2K_CCP_CSTY_PRT) {
            for (i = 0; i < tccp->numresolutions; i++) {
                  cio_write(cio, tccp->prcw[i] + (tccp->prch[i] << 4), 1);    /* SPcox (I_i) */
            }
      }
}

00464 static void j2k_read_cox(opj_j2k_t *j2k, int compno) {
      int i;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
      opj_tccp_t *tccp = &tcp->tccps[compno];
      opj_cio_t *cio = j2k->cio;

      tccp->numresolutions = cio_read(cio, 1) + 1;    /* SPcox (D) */

      /* check the reduce value */
      cp->reduce = int_min((tccp->numresolutions)-1, cp->reduce);
      tccp->cblkw = cio_read(cio, 1) + 2; /* SPcox (E) */
      tccp->cblkh = cio_read(cio, 1) + 2; /* SPcox (F) */
      tccp->cblksty = cio_read(cio, 1);   /* SPcox (G) */
      tccp->qmfbid = cio_read(cio, 1);    /* SPcox (H) */
      if (tccp->csty & J2K_CP_CSTY_PRT) {
            for (i = 0; i < tccp->numresolutions; i++) {
                  int tmp = cio_read(cio, 1);   /* SPcox (I_i) */
                  tccp->prcw[i] = tmp & 0xf;
                  tccp->prch[i] = tmp >> 4;
            }
      }
}

00489 static void j2k_write_cod(opj_j2k_t *j2k) {
      opj_cp_t *cp = NULL;
      opj_tcp_t *tcp = NULL;
      int lenp, len;

      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, J2K_MS_COD, 2);      /* COD */
      
      lenp = cio_tell(cio);
      cio_skip(cio, 2);
      
      cp = j2k->cp;
      tcp = &cp->tcps[j2k->curtileno];

      cio_write(cio, tcp->csty, 1);       /* Scod */
      cio_write(cio, tcp->prg, 1);        /* SGcod (A) */
      cio_write(cio, tcp->numlayers, 2);  /* SGcod (B) */
      cio_write(cio, tcp->mct, 1);        /* SGcod (C) */
      
      j2k_write_cox(j2k, 0);
      len = cio_tell(cio) - lenp;
      cio_seek(cio, lenp);
      cio_write(cio, len, 2);       /* Lcod */
      cio_seek(cio, lenp + len);
}

00516 static void j2k_read_cod(opj_j2k_t *j2k) {
      int len, i, pos;
      
      opj_cio_t *cio = j2k->cio;
      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
      opj_image_t *image = j2k->image;
      
      len = cio_read(cio, 2);                   /* Lcod */
      tcp->csty = cio_read(cio, 1);       /* Scod */
      tcp->prg = (OPJ_PROG_ORDER)cio_read(cio, 1);          /* SGcod (A) */
      tcp->numlayers = cio_read(cio, 2);  /* SGcod (B) */
      tcp->mct = cio_read(cio, 1);        /* SGcod (C) */

  if( tcp->mct )
    {
    assert( image->numcomps == 3);
    }
      
      pos = cio_tell(cio);
      for (i = 0; i < image->numcomps; i++) {
            tcp->tccps[i].csty = tcp->csty & J2K_CP_CSTY_PRT;
            cio_seek(cio, pos);
            j2k_read_cox(j2k, i);
      }
}

00543 static void j2k_write_coc(opj_j2k_t *j2k, int compno) {
      int lenp, len;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
      opj_image_t *image = j2k->image;
      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, J2K_MS_COC, 2);      /* COC */
      lenp = cio_tell(cio);
      cio_skip(cio, 2);
      cio_write(cio, compno, image->numcomps <= 256 ? 1 : 2);     /* Ccoc */
      cio_write(cio, tcp->tccps[compno].csty, 1);     /* Scoc */
      j2k_write_cox(j2k, compno);
      len = cio_tell(cio) - lenp;
      cio_seek(cio, lenp);
      cio_write(cio, len, 2);             /* Lcoc */
      cio_seek(cio, lenp + len);
}

00563 static void j2k_read_coc(opj_j2k_t *j2k) {
      int len, compno;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
      opj_image_t *image = j2k->image;
      opj_cio_t *cio = j2k->cio;
      
      len = cio_read(cio, 2);       /* Lcoc */
      compno = cio_read(cio, image->numcomps <= 256 ? 1 : 2);     /* Ccoc */
      tcp->tccps[compno].csty = cio_read(cio, 1);     /* Scoc */
      j2k_read_cox(j2k, compno);
}

00577 static void j2k_write_qcx(opj_j2k_t *j2k, int compno) {
      int bandno, numbands;
      int expn, mant;
      
      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
      opj_tccp_t *tccp = &tcp->tccps[compno];
      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, tccp->qntsty + (tccp->numgbits << 5), 1);    /* Sqcx */
      numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2;
      
      for (bandno = 0; bandno < numbands; bandno++) {
            expn = tccp->stepsizes[bandno].expn;
            mant = tccp->stepsizes[bandno].mant;
            
            if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
                  cio_write(cio, expn << 3, 1); /* SPqcx_i */
            } else {
                  cio_write(cio, (expn << 11) + mant, 2);   /* SPqcx_i */
            }
      }
}

00601 static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len) {
      int tmp;
      int bandno, numbands;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
      opj_tccp_t *tccp = &tcp->tccps[compno];
      opj_cio_t *cio = j2k->cio;

      tmp = cio_read(cio, 1);       /* Sqcx */
      tccp->qntsty = tmp & 0x1f;
      tccp->numgbits = tmp >> 5;
      numbands = (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? 
            1 : ((tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) ? len - 1 : (len - 1) / 2);
      for (bandno = 0; bandno < numbands; bandno++) {
            int expn, mant;
            if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
                  expn = cio_read(cio, 1) >> 3; /* SPqcx_i */
                  mant = 0;
            } else {
                  tmp = cio_read(cio, 2); /* SPqcx_i */
                  expn = tmp >> 11;
                  mant = tmp & 0x7ff;
            }
            tccp->stepsizes[bandno].expn = expn;
            tccp->stepsizes[bandno].mant = mant;
      }
      
      /* Add Antonin : if scalar_derived -> compute other stepsizes */
      if (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) {
            for (bandno = 1; bandno < J2K_MAXBANDS; bandno++) {
                  tccp->stepsizes[bandno].expn = 
                        ((tccp->stepsizes[0].expn) - ((bandno - 1) / 3) > 0) ? 
                              (tccp->stepsizes[0].expn) - ((bandno - 1) / 3) : 0;
                  tccp->stepsizes[bandno].mant = tccp->stepsizes[0].mant;
            }
      }
      /* ddA */
}

00641 static void j2k_write_qcd(opj_j2k_t *j2k) {
      int lenp, len;

      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, J2K_MS_QCD, 2);      /* QCD */
      lenp = cio_tell(cio);
      cio_skip(cio, 2);
      j2k_write_qcx(j2k, 0);
      len = cio_tell(cio) - lenp;
      cio_seek(cio, lenp);
      cio_write(cio, len, 2);             /* Lqcd */
      cio_seek(cio, lenp + len);
}

00656 static void j2k_read_qcd(opj_j2k_t *j2k) {
      int len, i, pos;

      opj_cio_t *cio = j2k->cio;
      opj_image_t *image = j2k->image;
      
      len = cio_read(cio, 2);       /* Lqcd */
      pos = cio_tell(cio);
      for (i = 0; i < image->numcomps; i++) {
            cio_seek(cio, pos);
            j2k_read_qcx(j2k, i, len - 2);
      }
}

00670 static void j2k_write_qcc(opj_j2k_t *j2k, int compno) {
      int lenp, len;

      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, J2K_MS_QCC, 2);      /* QCC */
      lenp = cio_tell(cio);
      cio_skip(cio, 2);
      cio_write(cio, compno, j2k->image->numcomps <= 256 ? 1 : 2);      /* Cqcc */
      j2k_write_qcx(j2k, compno);
      len = cio_tell(cio) - lenp;
      cio_seek(cio, lenp);
      cio_write(cio, len, 2);             /* Lqcc */
      cio_seek(cio, lenp + len);
}

00686 static void j2k_read_qcc(opj_j2k_t *j2k) {
      int len, compno;
      int numcomp = j2k->image->numcomps;
      opj_cio_t *cio = j2k->cio;
      
      len = cio_read(cio, 2); /* Lqcc */
      compno = cio_read(cio, numcomp <= 256 ? 1 : 2); /* Cqcc */
      j2k_read_qcx(j2k, compno, len - 2 - (numcomp <= 256 ? 1 : 2));
}

00696 static void j2k_write_poc(opj_j2k_t *j2k) {
      int len, numpchgs, i;

      int numcomps = j2k->image->numcomps;
      
      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
      opj_tccp_t *tccp = &tcp->tccps[0];
      opj_cio_t *cio = j2k->cio;

      numpchgs = tcp->numpocs;
      cio_write(cio, J2K_MS_POC, 2);      /* POC  */
      len = 2 + (5 + 2 * (numcomps <= 256 ? 1 : 2)) * numpchgs;
      cio_write(cio, len, 2);       /* Lpoc */
      for (i = 0; i < numpchgs; i++) {
            opj_poc_t *poc = &tcp->pocs[i];
            cio_write(cio, poc->resno0, 1);     /* RSpoc_i */
            cio_write(cio, poc->compno0, (numcomps <= 256 ? 1 : 2));    /* CSpoc_i */
            cio_write(cio, poc->layno1, 2);     /* LYEpoc_i */
            poc->layno1 = int_min(poc->layno1, tcp->numlayers);
            cio_write(cio, poc->resno1, 1);     /* REpoc_i */
            poc->resno1 = int_min(poc->resno1, tccp->numresolutions);
            cio_write(cio, poc->compno1, (numcomps <= 256 ? 1 : 2));    /* CEpoc_i */
            poc->compno1 = int_min(poc->compno1, numcomps);
            cio_write(cio, poc->prg, 1);  /* Ppoc_i */
      }
}

00724 static void j2k_read_poc(opj_j2k_t *j2k) {
      int len, numpchgs, i, old_poc;

      int numcomps = j2k->image->numcomps;
      
      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
      opj_tccp_t *tccp = &tcp->tccps[0];
      opj_cio_t *cio = j2k->cio;
      
      old_poc = tcp->POC ? tcp->numpocs + 1 : 0;
      tcp->POC = 1;
      len = cio_read(cio, 2);       /* Lpoc */
      numpchgs = (len - 2) / (5 + 2 * (numcomps <= 256 ? 1 : 2));
      
      for (i = old_poc; i < numpchgs + old_poc; i++) {
            opj_poc_t *poc;
            poc = &tcp->pocs[i];
            poc->resno0 = cio_read(cio, 1);     /* RSpoc_i */
            poc->compno0 = cio_read(cio, numcomps <= 256 ? 1 : 2);      /* CSpoc_i */
            poc->layno1 = int_min(cio_read(cio, 2), (unsigned int) tcp->numlayers); /* LYEpoc_i */
            poc->resno1 = int_min(cio_read(cio, 1), (unsigned int) tccp->numresolutions); /* REpoc_i */
            poc->compno1 = int_min(
                  cio_read(cio, numcomps <= 256 ? 1 : 2), (unsigned int) numcomps); /* CEpoc_i */
            poc->prg = (OPJ_PROG_ORDER)cio_read(cio, 1);    /* Ppoc_i */
      }
      
      tcp->numpocs = numpchgs + old_poc - 1;
}

00754 static void j2k_read_crg(opj_j2k_t *j2k) {
      int len, i, Xcrg_i, Ycrg_i;
      
      opj_cio_t *cio = j2k->cio;
      int numcomps = j2k->image->numcomps;
      
      len = cio_read(cio, 2);             /* Lcrg */
      for (i = 0; i < numcomps; i++) {
            Xcrg_i = cio_read(cio, 2);    /* Xcrg_i */
            Ycrg_i = cio_read(cio, 2);    /* Ycrg_i */
      }
}

00767 static void j2k_read_tlm(opj_j2k_t *j2k) {
      int len, Ztlm, Stlm, ST, SP, tile_tlm, i;
      long int Ttlm_i, Ptlm_i;

      opj_cio_t *cio = j2k->cio;
      
      len = cio_read(cio, 2);       /* Ltlm */
      Ztlm = cio_read(cio, 1);      /* Ztlm */
      Stlm = cio_read(cio, 1);      /* Stlm */
      ST = ((Stlm >> 4) & 0x01) + ((Stlm >> 4) & 0x02);
      SP = (Stlm >> 6) & 0x01;
      tile_tlm = (len - 4) / ((SP + 1) * 2 + ST);
      for (i = 0; i < tile_tlm; i++) {
            Ttlm_i = cio_read(cio, ST);   /* Ttlm_i */
            Ptlm_i = cio_read(cio, SP ? 4 : 2); /* Ptlm_i */
      }
}

00785 static void j2k_read_plm(opj_j2k_t *j2k) {
      int len, i, Zplm, Nplm, add, packet_len = 0;
      
      opj_cio_t *cio = j2k->cio;

      len = cio_read(cio, 2);       /* Lplm */
      Zplm = cio_read(cio, 1);      /* Zplm */
      len -= 3;
      while (len > 0) {
            Nplm = cio_read(cio, 4);            /* Nplm */
            len -= 4;
            for (i = Nplm; i > 0; i--) {
                  add = cio_read(cio, 1);
                  len--;
                  packet_len = (packet_len << 7) + add;     /* Iplm_ij */
                  if ((add & 0x80) == 0) {
                        /* New packet */
                        packet_len = 0;
                  }
                  if (len <= 0)
                        break;
            }
      }
}

00810 static void j2k_read_plt(opj_j2k_t *j2k) {
      int len, i, Zplt, packet_len = 0, add;
      
      opj_cio_t *cio = j2k->cio;
      
      len = cio_read(cio, 2);       /* Lplt */
      Zplt = cio_read(cio, 1);      /* Zplt */
      for (i = len - 3; i > 0; i--) {
            add = cio_read(cio, 1);
            packet_len = (packet_len << 7) + add;     /* Iplt_i */
            if ((add & 0x80) == 0) {
                  /* New packet */
                  packet_len = 0;
            }
      }
}

00827 static void j2k_read_ppm(opj_j2k_t *j2k) {
      int len, Z_ppm, i, j;
      int N_ppm;

      opj_cp_t *cp = j2k->cp;
      opj_cio_t *cio = j2k->cio;
      
      len = cio_read(cio, 2);
      cp->ppm = 1;
      
      Z_ppm = cio_read(cio, 1);     /* Z_ppm */
      len -= 3;
      while (len > 0) {
            if (cp->ppm_previous == 0) {
                  N_ppm = cio_read(cio, 4);     /* N_ppm */
                  len -= 4;
            } else {
                  N_ppm = cp->ppm_previous;
            }
            j = cp->ppm_store;
            if (Z_ppm == 0) { /* First PPM marker */
                  cp->ppm_data = (unsigned char *) opj_malloc(N_ppm * sizeof(unsigned char));
                  cp->ppm_data_first = cp->ppm_data;
                  cp->ppm_len = N_ppm;
            } else {                /* NON-first PPM marker */
                  cp->ppm_data = (unsigned char *) opj_realloc(cp->ppm_data, (N_ppm +     cp->ppm_store) * sizeof(unsigned char));
                  cp->ppm_data_first = cp->ppm_data;
                  cp->ppm_len = N_ppm + cp->ppm_store;
            }
            for (i = N_ppm; i > 0; i--) { /* Read packet header */
                  cp->ppm_data[j] = cio_read(cio, 1);
                  j++;
                  len--;
                  if (len == 0)
                        break;                  /* Case of non-finished packet header in present marker but finished in next one */
            }
            cp->ppm_previous = i - 1;
            cp->ppm_store = j;
      }
}

00868 static void j2k_read_ppt(opj_j2k_t *j2k) {
      int len, Z_ppt, i, j = 0;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = cp->tcps + j2k->curtileno;
      opj_cio_t *cio = j2k->cio;

      len = cio_read(cio, 2);
      Z_ppt = cio_read(cio, 1);
      tcp->ppt = 1;
      if (Z_ppt == 0) {       /* First PPT marker */
            tcp->ppt_data = (unsigned char *) opj_malloc((len - 3) * sizeof(unsigned char));
            tcp->ppt_data_first = tcp->ppt_data;
            tcp->ppt_store = 0;
            tcp->ppt_len = len - 3;
      } else {                /* NON-first PPT marker */
            tcp->ppt_data =   (unsigned char *) opj_realloc(tcp->ppt_data, (len - 3 + tcp->ppt_store) * sizeof(unsigned char));
            tcp->ppt_data_first = tcp->ppt_data;
            tcp->ppt_len = len - 3 + tcp->ppt_store;
      }
      j = tcp->ppt_store;
      for (i = len - 3; i > 0; i--) {
            tcp->ppt_data[j] = cio_read(cio, 1);
            j++;
      }
      tcp->ppt_store = j;
}

00896 static void j2k_write_sot(opj_j2k_t *j2k) {
      int lenp, len;

      opj_cio_t *cio = j2k->cio;

      j2k->sot_start = cio_tell(cio);
      cio_write(cio, J2K_MS_SOT, 2);            /* SOT */
      lenp = cio_tell(cio);
      cio_skip(cio, 2);                         /* Lsot (further) */
      cio_write(cio, j2k->curtileno, 2);  /* Isot */
      cio_skip(cio, 4);                         /* Psot (further in j2k_write_sod) */
      cio_write(cio, 0, 1);                     /* TPsot */
      cio_write(cio, 1, 1);                     /* TNsot */
      len = cio_tell(cio) - lenp;
      cio_seek(cio, lenp);
      cio_write(cio, len, 2);                   /* Lsot */
      cio_seek(cio, lenp + len);
}

00915 static void j2k_read_sot(opj_j2k_t *j2k) {
      int len, tileno, totlen, partno, numparts, i;
      opj_tcp_t *tcp = NULL;
      char status = 0;

      opj_cp_t *cp = j2k->cp;
      opj_cio_t *cio = j2k->cio;
      
      len = cio_read(cio, 2);
      tileno = cio_read(cio, 2);
      
      if (cp->tileno_size == 0) {
            cp->tileno[cp->tileno_size] = tileno;
            cp->tileno_size++;
      } else {
            i = 0;
            while (i < cp->tileno_size && status == 0) {
                  status = cp->tileno[i] == tileno ? 1 : 0;
                  i++;
            }
            if (status == 0) {
                  cp->tileno[cp->tileno_size] = tileno;
                  cp->tileno_size++;
            }
      }
      
      totlen = cio_read(cio, 4);
      if (!totlen)
            totlen = cio_numbytesleft(cio) + 8;
      
      partno = cio_read(cio, 1);
      numparts = cio_read(cio, 1);
      
      j2k->curtileno = tileno;
      j2k->eot = cio_getbp(cio) - 12 + totlen;
      j2k->state = J2K_STATE_TPH;
      tcp = &cp->tcps[j2k->curtileno];
      
      if (tcp->first == 1) {
            
            /* Initialization PPT */
            opj_tccp_t *tmp = tcp->tccps;
            memcpy(tcp, j2k->default_tcp, sizeof(opj_tcp_t));
            tcp->ppt = 0;
            tcp->ppt_data = NULL;
            tcp->ppt_data_first = NULL;
            tcp->tccps = tmp;

            for (i = 0; i < j2k->image->numcomps; i++) {
                  tcp->tccps[i] = j2k->default_tcp->tccps[i];
            }
            cp->tcps[j2k->curtileno].first = 0;
      }
}

00970 static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder) {
      int l, layno;
      int totlen;
      opj_tcp_t *tcp = NULL;
      opj_image_info_t *image_info = NULL;
      
      opj_tcd_t *tcd = (opj_tcd_t*)tile_coder;  /* cast is needed because of conflicts in header inclusions */
      opj_cp_t *cp = j2k->cp;
      opj_cio_t *cio = j2k->cio;
      
      cio_write(cio, J2K_MS_SOD, 2);
      if (j2k->curtileno == 0) {
            j2k->sod_start = cio_tell(cio) + j2k->pos_correction;
      }
      
      /* INDEX >> */
      image_info = j2k->image_info;
      if (image_info && image_info->index_on) {
            image_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1;
      }
      /* << INDEX */
      
      tcp = &cp->tcps[j2k->curtileno];
      for (layno = 0; layno < tcp->numlayers; layno++) {
            tcp->rates[layno] -= tcp->rates[layno] ? (j2k->sod_start / (cp->th * cp->tw)) : 0;
      }
      if(image_info) {
            image_info->num = 0;
      }
      
      l = tcd_encode_tile(tcd, j2k->curtileno, cio_getbp(cio), cio_numbytesleft(cio) - 2, image_info);
      
      /* Writing Psot in SOT marker */
      totlen = cio_tell(cio) + l - j2k->sot_start;
      cio_seek(cio, j2k->sot_start + 6);
      cio_write(cio, totlen, 4);
      cio_seek(cio, j2k->sot_start + totlen);
}

01009 static void j2k_read_sod(opj_j2k_t *j2k) {
      int len, truncate = 0, i;
      unsigned char *data = NULL, *data_ptr = NULL;

      opj_cio_t *cio = j2k->cio;
      int curtileno = j2k->curtileno;
      
      len = int_min(j2k->eot - cio_getbp(cio), cio_numbytesleft(cio) + 1);
      
      if (len == cio_numbytesleft(cio) + 1) {
            truncate = 1;           /* Case of a truncate codestream */
      }
      
      data = (unsigned char *) opj_malloc((j2k->tile_len[curtileno] + len) * sizeof(unsigned char));

      for (i = 0; i < j2k->tile_len[curtileno]; i++) {
            data[i] = j2k->tile_data[curtileno][i];
      }

      data_ptr = data + j2k->tile_len[curtileno];
      for (i = 0; i < len; i++) {
            data_ptr[i] = cio_read(cio, 1);
      }
      
      j2k->tile_len[curtileno] += len;
      opj_free(j2k->tile_data[curtileno]);
      j2k->tile_data[curtileno] = data;
      
      if (!truncate) {
            j2k->state = J2K_STATE_TPHSOT;
      } else {
            j2k->state = J2K_STATE_NEOC;  /* RAJOUTE !! */
      }
}

01044 static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno) {
      
      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = &cp->tcps[tileno];
      opj_cio_t *cio = j2k->cio;
      int numcomps = j2k->image->numcomps;
      
      cio_write(cio, J2K_MS_RGN, 2);                                    /* RGN  */
      cio_write(cio, numcomps <= 256 ? 5 : 6, 2);                 /* Lrgn */
      cio_write(cio, compno, numcomps <= 256 ? 1 : 2);      /* Crgn */
      cio_write(cio, 0, 1);                                             /* Srgn */
      cio_write(cio, tcp->tccps[compno].roishift, 1);       /* SPrgn */
}

01058 static void j2k_read_rgn(opj_j2k_t *j2k) {
      int len, compno, roisty;

      opj_cp_t *cp = j2k->cp;
      opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
      opj_cio_t *cio = j2k->cio;
      int numcomps = j2k->image->numcomps;

      len = cio_read(cio, 2);                                                       /* Lrgn */
      compno = cio_read(cio, numcomps <= 256 ? 1 : 2);                  /* Crgn */
      roisty = cio_read(cio, 1);                                                    /* Srgn */
      tcp->tccps[compno].roishift = cio_read(cio, 1);                   /* SPrgn */
}

01072 static void j2k_write_eoc(opj_j2k_t *j2k) {
      opj_cio_t *cio = j2k->cio;
      /* opj_event_msg(j2k->cinfo, "%.8x: EOC\n", cio_tell(cio) + j2k->pos_correction); */
      cio_write(cio, J2K_MS_EOC, 2);
}

01078 static void j2k_read_eoc(opj_j2k_t *j2k) {
      int i, tileno;

#ifndef NO_PACKETS_DECODING  
      opj_tcd_t *tcd = tcd_create(j2k->cinfo);
      tcd_malloc_decode(tcd, j2k->image, j2k->cp);
      for (i = 0; i < j2k->cp->tileno_size; i++) {
            tileno = j2k->cp->tileno[i];
            tcd_decode_tile(tcd, j2k->tile_data[tileno], j2k->tile_len[tileno], tileno);
            opj_free(j2k->tile_data[tileno]);
            j2k->tile_data[tileno] = NULL;
      }
      tcd_free_decode(tcd);
      tcd_destroy(tcd);
#else 
      for (i = 0; i < j2k->cp->tileno_size; i++) {
            tileno = j2k->cp->tileno[i];
            opj_free(j2k->tile_data[tileno]);
            j2k->tile_data[tileno] = NULL;
      }
#endif
      
      j2k->state = J2K_STATE_MT;
}

01103 static void j2k_read_unk(opj_j2k_t *j2k) {
      opj_event_msg(j2k->cinfo, EVT_WARNING, "Unknown marker\n");
}

typedef struct opj_dec_mstabent {
      /** marker value */
      int id;
      /** value of the state when the marker can appear */
      int states;
      /** action linked to the marker */
      void (*handler) (opj_j2k_t *j2k);
} opj_dec_mstabent_t;

opj_dec_mstabent_t j2k_dec_mstab[] = {
  {J2K_MS_SOC, J2K_STATE_MHSOC, j2k_read_soc},
  {J2K_MS_SOT, J2K_STATE_MH | J2K_STATE_TPHSOT, j2k_read_sot},
  {J2K_MS_SOD, J2K_STATE_TPH, j2k_read_sod},
  {J2K_MS_EOC, J2K_STATE_TPHSOT, j2k_read_eoc},
  {J2K_MS_SIZ, J2K_STATE_MHSIZ, j2k_read_siz},
  {J2K_MS_COD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_cod},
  {J2K_MS_COC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_coc},
  {J2K_MS_RGN, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_rgn},
  {J2K_MS_QCD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcd},
  {J2K_MS_QCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcc},
  {J2K_MS_POC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_poc},
  {J2K_MS_TLM, J2K_STATE_MH, j2k_read_tlm},
  {J2K_MS_PLM, J2K_STATE_MH, j2k_read_plm},
  {J2K_MS_PLT, J2K_STATE_TPH, j2k_read_plt},
  {J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm},
  {J2K_MS_PPT, J2K_STATE_TPH, j2k_read_ppt},
  {J2K_MS_SOP, 0, 0},
  {J2K_MS_CRG, J2K_STATE_MH, j2k_read_crg},
  {J2K_MS_COM, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_com},
  {0, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_unk}
};

/**
Read the lookup table containing all the marker, status and action
@param id Marker value
*/
static opj_dec_mstabent_t *j2k_dec_mstab_lookup(int id) {
      opj_dec_mstabent_t *e;
      for (e = j2k_dec_mstab; e->id != 0; e++) {
            if (e->id == id) {
                  break;
            }
      }
      return e;
}

/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface                                             */
/* ----------------------------------------------------------------------- */

01157 opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo) {
      opj_j2k_t *j2k = (opj_j2k_t*)opj_malloc(sizeof(opj_j2k_t));
      if(j2k) {
            j2k->cinfo = cinfo;
            j2k->default_tcp = (opj_tcp_t*)opj_malloc(sizeof(opj_tcp_t));
            if(!j2k->default_tcp) {
                  opj_free(j2k);
                  return NULL;
            }
      }
      return j2k;
}

01170 void j2k_destroy_decompress(opj_j2k_t *j2k) {
      int i = 0;

      if(j2k->tile_len != NULL) {
            opj_free(j2k->tile_len);
      }
      if(j2k->tile_data != NULL) {
            opj_free(j2k->tile_data);
      }
      if(j2k->default_tcp != NULL) {
            opj_tcp_t *default_tcp = j2k->default_tcp;
            if(default_tcp->ppt_data_first != NULL) {
                  opj_free(default_tcp->ppt_data_first);
            }
            if(j2k->default_tcp->tccps != NULL) {
                  opj_free(j2k->default_tcp->tccps);
            }
            opj_free(j2k->default_tcp);
      }
      if(j2k->cp != NULL) {
            opj_cp_t *cp = j2k->cp;
            if(cp->tcps != NULL) {
                  for(i = 0; i < cp->tw * cp->th; i++) {
                        if(cp->tcps[i].ppt_data_first != NULL) {
                              opj_free(cp->tcps[i].ppt_data_first);
                        }
                        if(cp->tcps[i].tccps != NULL) {
                              opj_free(cp->tcps[i].tccps);
                        }
                  }
                  opj_free(cp->tcps);
            }
            if(cp->ppm_data_first != NULL) {
                  opj_free(cp->ppm_data_first);
            }
            if(cp->tileno != NULL) {
                  opj_free(cp->tileno);  
            }
            if(cp->comment != NULL) {
                  opj_free(cp->comment);
            }

            opj_free(cp);
      }

      opj_free(j2k);
}

01218 void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) {
      if(j2k && parameters) {
            /* create and initialize the coding parameters structure */
            opj_cp_t *cp = (opj_cp_t*)opj_malloc(sizeof(opj_cp_t));
            cp->reduce = parameters->cp_reduce; 
            cp->layer = parameters->cp_layer;

            /* keep a link to cp so that we can destroy it later in j2k_destroy_decompress */
            j2k->cp = cp;
      }
}

01230 opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio) {
      opj_image_t *image = NULL;

      opj_common_ptr cinfo = j2k->cinfo;

      j2k->cio = cio;

      /* create an empty image */
      image = opj_image_create0();
      j2k->image = image;

      j2k->state = J2K_STATE_MHSOC;

      for (;;) {
            opj_dec_mstabent_t *e;
            int id = cio_read(cio, 2);
            if (id >> 8 != 0xff) {
                  opj_image_destroy(image);
                  opj_event_msg(cinfo, EVT_ERROR, "%x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
                  return 0;
            }
            e = j2k_dec_mstab_lookup(id);
            if (!(j2k->state & e->states)) {
                  opj_image_destroy(image);
                  opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id);
                  return 0;
            }
            if (e->handler) {
                  (*e->handler)(j2k);
            }
            if (j2k->state == J2K_STATE_MT) {
                  break;
            }
            if (j2k->state == J2K_STATE_NEOC) {
                  break;
            }
      }
      if (j2k->state == J2K_STATE_NEOC) {
            j2k_read_eoc(j2k);
      }

      if (j2k->state != J2K_STATE_MT) {
            opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n");
      }

      return image;
}

/*
* Read a JPT-stream and decode file
*
*/
01282 opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio) {
      opj_image_t *image = NULL;
      opj_jpt_msg_header_t header;
      int position;

      opj_common_ptr cinfo = j2k->cinfo;
      
      j2k->cio = cio;

      /* create an empty image */
      image = opj_image_create0();

      j2k->state = J2K_STATE_MHSOC;
      
      /* Initialize the header */
      jpt_init_msg_header(&header);
      /* Read the first header of the message */
      jpt_read_msg_header(cinfo, cio, &header);
      
      position = cio_tell(cio);
      if (header.Class_Id != 6) {   /* 6 : Main header data-bin message */
            opj_image_destroy(image);
            opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Main header first [class_Id %d] !\n", header.Class_Id);
            return 0;
      }
      
      for (;;) {
            opj_dec_mstabent_t *e = NULL;
            int id;
            
            if (!cio_numbytesleft(cio)) {
                  j2k_read_eoc(j2k);
                  return image;
            }
            /* data-bin read -> need to read a new header */
            if ((unsigned int) (cio_tell(cio) - position) == header.Msg_length) {
                  jpt_read_msg_header(cinfo, cio, &header);
                  position = cio_tell(cio);
                  if (header.Class_Id != 4) {   /* 4 : Tile data-bin message */
                        opj_image_destroy(image);
                        opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Tile info !\n");
                        return 0;
                  }
            }
            
            id = cio_read(cio, 2);
            if (id >> 8 != 0xff) {
                  opj_image_destroy(image);
                  opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
                  return 0;
            }
            e = j2k_dec_mstab_lookup(id);
            if (!(j2k->state & e->states)) {
                  opj_image_destroy(image);
                  opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id);
                  return 0;
            }
            if (e->handler) {
                  (*e->handler)(j2k);
            }
            if (j2k->state == J2K_STATE_MT) {
                  break;
            }
            if (j2k->state == J2K_STATE_NEOC) {
                  break;
            }
      }
      if (j2k->state == J2K_STATE_NEOC) {
            j2k_read_eoc(j2k);
      }
      
      if (j2k->state != J2K_STATE_MT) {
            opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n");
      }

      return image;
}

/* ----------------------------------------------------------------------- */
/* J2K encoder interface                                                       */
/* ----------------------------------------------------------------------- */

01364 opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo) {
      opj_j2k_t *j2k = (opj_j2k_t*)opj_malloc(sizeof(opj_j2k_t));
      if(j2k) {
            j2k->cinfo = cinfo;
      }
      return j2k;
}

01372 void j2k_destroy_compress(opj_j2k_t *j2k) {
      int tileno;

      if(!j2k) return;

      if(j2k->image_info != NULL) {
            opj_image_info_t *image_info = j2k->image_info;
            if (image_info->index_on && j2k->cp) {
                  opj_cp_t *cp = j2k->cp;
                  for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
                        opj_tile_info_t *tile_info = &image_info->tile[tileno];
                        opj_free(tile_info->thresh);
                        opj_free(tile_info->packet);
                  }
                  opj_free(image_info->tile);
            }
            opj_free(image_info);
      }
      if(j2k->cp != NULL) {
            opj_cp_t *cp = j2k->cp;

            if(cp->comment) {
                  opj_free(cp->comment);
            }
            if(cp->matrice) {
                  opj_free(cp->matrice);
            }
            for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
                  opj_free(cp->tcps[tileno].tccps);
            }
            opj_free(cp->tcps);
            opj_free(cp);
      }

      opj_free(j2k);
}

01409 void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image) {
      int i, j, tileno, numpocs_tile;
      opj_cp_t *cp = NULL;

      if(!j2k || !parameters || ! image) {
            return;
      }

      /* create and initialize the coding parameters structure */
      cp = (opj_cp_t*)opj_malloc(sizeof(opj_cp_t));

      /* keep a link to cp so that we can destroy it later in j2k_destroy_compress */
      j2k->cp = cp;

      /* set default values for cp */
      cp->tw = 1;
      cp->th = 1;

      /* 
      copy user encoding parameters 
      */

      cp->disto_alloc = parameters->cp_disto_alloc;
      cp->fixed_alloc = parameters->cp_fixed_alloc;
      cp->fixed_quality = parameters->cp_fixed_quality;

      /* mod fixed_quality */
      if(parameters->cp_matrice) {
            size_t array_size = parameters->tcp_numlayers * parameters->numresolution * 3 * sizeof(int);
            cp->matrice = (int *) opj_malloc(array_size);
            memcpy(cp->matrice, parameters->cp_matrice, array_size);
      }

      /* creation of an index file ? */
      cp->index_on = parameters->index_on;
      if(cp->index_on) {
            j2k->image_info = (opj_image_info_t*)opj_malloc(sizeof(opj_image_info_t));
      }

      /* tiles */
      cp->tdx = parameters->cp_tdx;
      cp->tdy = parameters->cp_tdy;

      /* tile offset */
      cp->tx0 = parameters->cp_tx0;
      cp->ty0 = parameters->cp_ty0;

      /* comment string */
      if(parameters->cp_comment) {
            cp->comment = (char*)opj_malloc(strlen(parameters->cp_comment) + 1);
            if(cp->comment) {
                  strcpy(cp->comment, parameters->cp_comment);
            }
      }

      /*
      calculate other encoding parameters
      */

      if (parameters->tile_size_on) {
            cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx);
            cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy);
      } else {
            cp->tdx = image->x1 - cp->tx0;
            cp->tdy = image->y1 - cp->ty0;
      }

      /* initialize the mutiple tiles */
      /* ---------------------------- */
      cp->tcps = (opj_tcp_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tcp_t));

      for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
            opj_tcp_t *tcp = &cp->tcps[tileno];
            tcp->numlayers = parameters->tcp_numlayers;
            for (j = 0; j < tcp->numlayers; j++) {
                  if (cp->fixed_quality) {      /* add fixed_quality */
                        tcp->distoratio[j] = parameters->tcp_distoratio[j];
                  } else {
                        tcp->rates[j] = parameters->tcp_rates[j];
                  }
            }
            tcp->csty = parameters->csty;
            tcp->prg = parameters->prog_order;
            tcp->mct = image->numcomps == 3 ? 1 : 0;

            numpocs_tile = 0;
            tcp->POC = 0;
            if (parameters->numpocs) {
                  /* initialisation of POC */
                  tcp->POC = 1;
                  for (i = 0; i < parameters->numpocs; i++) {
                        if((tileno == parameters->POC[i].tile - 1) || (parameters->POC[i].tile == -1)) {
                              opj_poc_t *tcp_poc = &tcp->pocs[numpocs_tile];
                              tcp_poc->resno0         = parameters->POC[numpocs_tile].resno0;
                              tcp_poc->compno0  = parameters->POC[numpocs_tile].compno0;
                              tcp_poc->layno1         = parameters->POC[numpocs_tile].layno1;
                              tcp_poc->resno1         = parameters->POC[numpocs_tile].resno1;
                              tcp_poc->compno1  = parameters->POC[numpocs_tile].compno1;
                              tcp_poc->prg            = parameters->POC[numpocs_tile].prg;
                              tcp_poc->tile           = parameters->POC[numpocs_tile].tile;
                              numpocs_tile++;
                        }
                  }
            }
            tcp->numpocs = numpocs_tile;

            tcp->tccps = (opj_tccp_t *) opj_malloc(image->numcomps * sizeof(opj_tccp_t));
            
            for (i = 0; i < image->numcomps; i++) {
                  opj_tccp_t *tccp = &tcp->tccps[i];
                  tccp->csty = parameters->csty & 0x01;     /* 0 => one precinct || 1 => custom precinct  */
                  tccp->numresolutions = parameters->numresolution;
                  tccp->cblkw = int_floorlog2(parameters->cblockw_init);
                  tccp->cblkh = int_floorlog2(parameters->cblockh_init);
                  tccp->cblksty = parameters->mode;
                  tccp->qmfbid = parameters->irreversible ? 0 : 1;
                  tccp->qntsty = parameters->irreversible ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT;
                  tccp->numgbits = 2;
                  if (i == parameters->roi_compno) {
                        tccp->roishift = parameters->roi_shift;
                  } else {
                        tccp->roishift = 0;
                  }
                  if (parameters->csty & J2K_CCP_CSTY_PRT) {
                        int p = 0;
                        for (j = tccp->numresolutions - 1; j >= 0; j--) {
                              if (p < parameters->res_spec) {
                                    if (parameters->prcw_init[p] < 1) {
                                          tccp->prcw[j] = 1;
                                    } else {
                                          tccp->prcw[j] = int_floorlog2(parameters->prcw_init[p]);
                                    }
                                    if (parameters->prch_init[p] < 1) {
                                          tccp->prch[j] = 1;
                                    } else {
                                          tccp->prch[j] = int_floorlog2(parameters->prch_init[p]);
                                    }
                              } else {
                                    int res_spec = parameters->res_spec;
                                    int size_prcw = parameters->prcw_init[res_spec - 1] >> (p - (res_spec - 1));
                                    int size_prch = parameters->prch_init[res_spec - 1] >> (p - (res_spec - 1));
                                    if (size_prcw < 1) {
                                          tccp->prcw[j] = 1;
                                    } else {
                                          tccp->prcw[j] = int_floorlog2(size_prcw);
                                    }
                                    if (size_prch < 1) {
                                          tccp->prch[j] = 1;
                                    } else {
                                          tccp->prch[j] = int_floorlog2(size_prch);
                                    }
                              }
                              p++;
                              /*printf("\nsize precinct for level %d : %d,%d\n", j,tccp->prcw[j], tccp->prch[j]); */
                        }
                  } else {
                        for (j = 0; j < tccp->numresolutions; j++) {
                              tccp->prcw[j] = 15;
                              tccp->prch[j] = 15;
                        }
                  }

                  dwt_calc_explicit_stepsizes(tccp, image->comps[i].prec);
            }
      }
}

/**
Create an index file
@param j2k
@param cio
@param image_info
@param index Index filename
@return Returns 1 if successful, returns 0 otherwise
*/
static int j2k_create_index(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_info_t *image_info, char *index) {
      int tileno, compno, layno, resno, precno, pack_nb, x, y;
      FILE *stream = NULL;
      double total_disto = 0;

      image_info->codestream_size = cio_tell(cio) + j2k->pos_correction;      /* Correction 14/4/03 suite rmq de Patrick */

      stream = fopen(index, "w");
      if (!stream) {
            opj_event_msg(j2k->cinfo, EVT_ERROR, "failed to open %s for writing\n", index);
            return 0;
      }
      
      fprintf(stream, "%d %d\n", image_info->image_w, image_info->image_h);
      fprintf(stream, "%d\n", image_info->prog);
      fprintf(stream, "%d %d\n", image_info->tile_x, image_info->tile_y);
      fprintf(stream, "%d %d\n", image_info->tw, image_info->th);
      fprintf(stream, "%d\n", image_info->comp);
      fprintf(stream, "%d\n", image_info->layer);
      fprintf(stream, "%d\n", image_info->decomposition);
      
      for (resno = image_info->decomposition; resno >= 0; resno--) {
            fprintf(stream, "[%d,%d] ", 
                  (1 << image_info->tile[0].pdx[resno]), (1 << image_info->tile[0].pdx[resno]));      /* based on tile 0 */
      }
      fprintf(stream, "\n");
      fprintf(stream, "%d\n", image_info->main_head_end);
      fprintf(stream, "%d\n", image_info->codestream_size);
      
      for (tileno = 0; tileno < image_info->tw * image_info->th; tileno++) {
            fprintf(stream, "%4d %9d %9d %9d %9e %9d %9e\n",
                  image_info->tile[tileno].num_tile,
                  image_info->tile[tileno].start_pos,
                  image_info->tile[tileno].end_header,
                  image_info->tile[tileno].end_pos,
                  image_info->tile[tileno].distotile, image_info->tile[tileno].nbpix,
                  image_info->tile[tileno].distotile / image_info->tile[tileno].nbpix);
      }
      
      for (tileno = 0; tileno < image_info->tw * image_info->th; tileno++) {
            int start_pos, end_pos;
            double disto = 0;
            pack_nb = 0;
            
            /*
            fprintf(stream, "pkno tileno layerno resno compno precno start_pos   end_pos       deltaSE        \n");
            */
            
            if (image_info->prog == LRCP) {     /* LRCP */
                  /*
                  fprintf(stream, "pack_nb tileno layno resno compno precno start_pos  end_pos   disto");
                  */
                  for (layno = 0; layno < image_info->layer; layno++) {
                        for (resno = 0; resno < image_info->decomposition + 1; resno++) {
                              for (compno = 0; compno < image_info->comp; compno++) {
                                    int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno];
                                    for (precno = 0; precno < prec_max; precno++) {
                                          start_pos = image_info->tile[tileno].packet[pack_nb].start_pos;
                                          end_pos = image_info->tile[tileno].packet[pack_nb].end_pos;
                                          disto = image_info->tile[tileno].packet[pack_nb].disto;
                                          fprintf(stream, "%4d %6d %7d %5d %6d %6d %9d %9d %8e\n",
                                                pack_nb, tileno, layno, resno, compno, precno, start_pos, end_pos, disto);
                                          total_disto += disto;
                                          pack_nb++;
                                    }
                              }
                        }
                  }
            } /* LRCP */
            else if (image_info->prog == RLCP) {      /* RLCP */
                  /*
                  fprintf(stream, "pack_nb tileno resno layno compno precno start_pos  end_pos   disto");
                  */
                  for (resno = 0; resno < image_info->decomposition + 1; resno++) {
                        for (layno = 0; layno < image_info->layer; layno++) {
                              for (compno = 0; compno < image_info->comp; compno++) {
                                    int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno];
                                    for (precno = 0; precno < prec_max; precno++) {
                                          start_pos = image_info->tile[tileno].packet[pack_nb].start_pos;
                                          end_pos = image_info->tile[tileno].packet[pack_nb].end_pos;
                                          disto = image_info->tile[tileno].packet[pack_nb].disto;
                                          fprintf(stream, "%4d %6d %5d %7d %6d %6d %9d %9d %8e\n",
                                                pack_nb, tileno, resno, layno, compno, precno, start_pos, end_pos, disto);
                                          total_disto += disto;
                                          pack_nb++;
                                    }
                              }
                        }
                  }
            } /* RLCP */
            else if (image_info->prog == RPCL) {      /* RPCL */
                  /*
                  fprintf(stream, "\npack_nb tileno resno precno compno layno start_pos  end_pos   disto\n"); 
                  */
                  for (resno = 0; resno < image_info->decomposition + 1; resno++) {
                        /* I suppose components have same XRsiz, YRsiz */
                        int x0 = image_info->tile_Ox + tileno - (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tw * image_info->tile_x;
                        int y0 = image_info->tile_Ox + (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tile_y;
                        int x1 = x0 + image_info->tile_x;
                        int y1 = y0 + image_info->tile_y;
                        for(y = y0; y < y1; y++) {
                              for(x = x0; x < x1; x++) {
                                    for (compno = 0; compno < image_info->comp; compno++) {
                                          int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno];
                                          for (precno = 0; precno < prec_max; precno++) {
                                                int pcnx = image_info->tile[tileno].pw[resno];
                                                int pcx = (int) pow( 2, image_info->tile[tileno].pdx[resno] + image_info->decomposition - resno );
                                                int pcy = (int) pow( 2, image_info->tile[tileno].pdy[resno] + image_info->decomposition - resno );
                                                int precno_x = precno - (int) floor( (float)precno/(float)pcnx ) * pcnx;
                                                int precno_y = (int) floor( (float)precno/(float)pcnx );
                                                if (precno_y*pcy == y ) {
                                                      if (precno_x*pcx == x ) {
                                                            for (layno = 0; layno < image_info->layer; layno++) {
                                                                  start_pos = image_info->tile[tileno].packet[pack_nb].start_pos;
                                                                  end_pos = image_info->tile[tileno].packet[pack_nb].end_pos;
                                                                  disto = image_info->tile[tileno].packet[pack_nb].disto;
                                                                  fprintf(stream, "%4d %6d %5d %6d %6d %7d %9d %9d %8e\n",
                                                                        pack_nb, tileno, resno, precno, compno, layno, start_pos, end_pos, disto); 
                                                                  total_disto += disto;
                                                                  pack_nb++; 
                                                            }
                                                      }
                                                }
                                          } /* precno */
                                    } /* compno */
                              } /* x = x0..x1 */
                        } /* y = y0..y1 */
                  } /* resno */
            } /* RPCL */
            else if (image_info->prog == PCRL) {      /* PCRL */
                  /* I suppose components have same XRsiz, YRsiz */
                  int x0 = image_info->tile_Ox + tileno - (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tw * image_info->tile_x;
                  int y0 = image_info->tile_Ox + (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tile_y;
                  int x1 = x0 + image_info->tile_x;
                  int y1 = y0 + image_info->tile_y;
                  /*
                  fprintf(stream, "\npack_nb tileno precno compno resno layno start_pos  end_pos   disto\n"); 
                  */
                  for(y = y0; y < y1; y++) {
                        for(x = x0; x < x1; x++) {
                              for (compno = 0; compno < image_info->comp; compno++) {
                                    for (resno = 0; resno < image_info->decomposition + 1; resno++) {
                                          int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno];
                                          for (precno = 0; precno < prec_max; precno++) {
                                                int pcnx = image_info->tile[tileno].pw[resno];
                                                int pcx = (int) pow( 2, image_info->tile[tileno].pdx[resno] + image_info->decomposition - resno );
                                                int pcy = (int) pow( 2, image_info->tile[tileno].pdy[resno] + image_info->decomposition - resno );
                                                int precno_x = precno - (int) floor( (float)precno/(float)pcnx ) * pcnx;
                                                int precno_y = (int) floor( (float)precno/(float)pcnx );
                                                if (precno_y*pcy == y ) {
                                                      if (precno_x*pcx == x ) {
                                                            for (layno = 0; layno < image_info->layer; layno++) {
                                                                  start_pos = image_info->tile[tileno].packet[pack_nb].start_pos;
                                                                  end_pos = image_info->tile[tileno].packet[pack_nb].end_pos;
                                                                  disto = image_info->tile[tileno].packet[pack_nb].disto;
                                                                  fprintf(stream, "%4d %6d %6d %6d %5d %7d %9d %9d %8e\n",
                                                                        pack_nb, tileno, precno, compno, resno, layno, start_pos, end_pos, disto); 
                                                                  total_disto += disto;
                                                                  pack_nb++; 
                                                            }
                                                      }
                                                }
                                          } /* precno */
                                    } /* resno */
                              } /* compno */
                        } /* x = x0..x1 */
                  } /* y = y0..y1 */
            } /* PCRL */
            else {      /* CPRL */
                  /*
                  fprintf(stream, "\npack_nb tileno compno precno resno layno start_pos  end_pos   disto\n"); 
                  */
                  for (compno = 0; compno < image_info->comp; compno++) {
                        /* I suppose components have same XRsiz, YRsiz */
                        int x0 = image_info->tile_Ox + tileno - (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tw * image_info->tile_x;
                        int y0 = image_info->tile_Ox + (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tile_y;
                        int x1 = x0 + image_info->tile_x;
                        int y1 = y0 + image_info->tile_y;
                        for(y = y0; y < y1; y++) {
                              for(x = x0; x < x1; x++) {
                                    for (resno = 0; resno < image_info->decomposition + 1; resno++) {
                                          int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno];
                                          for (precno = 0; precno < prec_max; precno++) {
                                                int pcnx = image_info->tile[tileno].pw[resno];
                                                int pcx = (int) pow( 2, image_info->tile[tileno].pdx[resno] + image_info->decomposition - resno );
                                                int pcy = (int) pow( 2, image_info->tile[tileno].pdy[resno] + image_info->decomposition - resno );
                                                int precno_x = precno - (int) floor( (float)precno/(float)pcnx ) * pcnx;
                                                int precno_y = (int) floor( (float)precno/(float)pcnx );
                                                if (precno_y*pcy == y ) {
                                                      if (precno_x*pcx == x ) {
                                                            for (layno = 0; layno < image_info->layer; layno++) {
                                                                  start_pos = image_info->tile[tileno].packet[pack_nb].start_pos;
                                                                  end_pos = image_info->tile[tileno].packet[pack_nb].end_pos;
                                                                  disto = image_info->tile[tileno].packet[pack_nb].disto;
                                                                  fprintf(stream, "%4d %6d %6d %6d %5d %7d %9d %9d %8e\n",
                                                                        pack_nb, tileno, compno, precno, resno, layno, start_pos, end_pos, disto); 
                                                                  total_disto += disto;
                                                                  pack_nb++; 
                                                            }
                                                      }
                                                }
                                          } /* precno */
                                    } /* resno */
                              } /* x = x0..x1 */
                        } /* y = y0..y1 */
                  } /* comno */
            } /* CPRL */   
      } /* tileno */
      
      fprintf(stream, "%8e\n", image_info->D_max); /* SE max */
      fprintf(stream, "%.8e\n", total_disto);   /* SE totale */
      fclose(stream);

      return 1;
}

01800 bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index) {
      int tileno, compno;
      opj_image_info_t *image_info = NULL;
      opj_cp_t *cp = NULL;

      opj_tcd_t *tcd = NULL;  /* TCD component */

      j2k->cio = cio;   
      j2k->image = image;

      cp = j2k->cp;

      /* j2k_dump_cp(stdout, image, cp); */

      /* INDEX >> */
      image_info = j2k->image_info;
      if (image_info && cp->index_on) {
            image_info->index_on = cp->index_on;
            image_info->tile = (opj_tile_info_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tile_info_t));
            image_info->image_w = image->x1 - image->x0;
            image_info->image_h = image->y1 - image->y0;
            image_info->prog = (&cp->tcps[0])->prg;
            image_info->tw = cp->tw;
            image_info->th = cp->th;
            image_info->tile_x = cp->tdx; /* new version parser */
            image_info->tile_y = cp->tdy; /* new version parser */
            image_info->tile_Ox = cp->tx0;      /* new version parser */
            image_info->tile_Oy = cp->ty0;      /* new version parser */
            image_info->comp = image->numcomps;
            image_info->layer = (&cp->tcps[0])->numlayers;
            image_info->decomposition = (&cp->tcps[0])->tccps->numresolutions - 1;
            image_info->D_max = 0;        /* ADD Marcela */
      }
      /* << INDEX */
      
      j2k_write_soc(j2k);
      j2k_write_siz(j2k);
      j2k_write_cod(j2k);
      j2k_write_qcd(j2k);
      for (compno = 0; compno < image->numcomps; compno++) {
            opj_tcp_t *tcp = &cp->tcps[0];
            if (tcp->tccps[compno].roishift)
                  j2k_write_rgn(j2k, compno, 0);
      }
      if (cp->comment != NULL) {
            j2k_write_com(j2k);
      }
      /* INDEX >> */
      if(image_info && image_info->index_on) {
            image_info->main_head_end = cio_tell(cio) - 1;
      }
      /* << INDEX */

      /* create the tile encoder */
      tcd = tcd_create(j2k->cinfo);

      /* encode each tile */

      for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
            opj_event_msg(j2k->cinfo, EVT_INFO, "tile number %d / %d\n", tileno + 1, cp->tw * cp->th);
            
            j2k->curtileno = tileno;

            /* initialisation before tile encoding  */
            if (tileno == 0) {
                  tcd_malloc_encode(tcd, image, cp, j2k->curtileno);
            } else {
                  tcd_init_encode(tcd, image, cp, j2k->curtileno);
            }
            
            /* INDEX >> */
            if(image_info && image_info->index_on) {
                  image_info->tile[j2k->curtileno].num_tile = j2k->curtileno;
                  image_info->tile[j2k->curtileno].start_pos = cio_tell(cio) + j2k->pos_correction;
            }
            /* << INDEX */

            j2k_write_sot(j2k);
            
            for (compno = 1; compno < image->numcomps; compno++) {
                  j2k_write_coc(j2k, compno);
                  j2k_write_qcc(j2k, compno);
            }
            if (cp->tcps[tileno].numpocs) {
                  j2k_write_poc(j2k);
            }

            j2k_write_sod(j2k, tcd);
            
            /* INDEX >> */
            if(image_info && image_info->index_on) {
                  image_info->tile[j2k->curtileno].end_pos = cio_tell(cio) + j2k->pos_correction - 1;
            }
            /* << INDEX */
            
            
            /*
            if (tile->PPT) { // BAD PPT !!! 
                  FILE *PPT_file;
                  int i;
                  PPT_file=fopen("PPT","rb");
                  fprintf(stderr,"%c%c%c%c",255,97,tile->len_ppt/256,tile->len_ppt%256);
                  for (i=0;i<tile->len_ppt;i++) {
                        unsigned char elmt;
                        fread(&elmt, 1, 1, PPT_file);
                        fwrite(&elmt,1,1,f);
                  }
                  fclose(PPT_file);
                  unlink("PPT");
            }
            */
            
      }
      
      /* destroy the tile encoder */
      tcd_free_encode(tcd);
      tcd_destroy(tcd);

      j2k_write_eoc(j2k);
      
      /* Creation of the index file */
      if(image_info && image_info->index_on) {
            if(!j2k_create_index(j2k, cio, image_info, index)) {
                  opj_event_msg(j2k->cinfo, EVT_ERROR, "failed to create index file %s\n", index);
                  return false;
            }
      }
        
      return true;
}


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