/*
 * Copyright (c) 2001-2002, David Janssens
 * Copyright (c) 2003-2004, Yannick Verschueren
 * Copyright (c) 2003-2004, 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <math.h>
#include <unistd.h>

#include "j2k.h"
#include "cio.h"
#include "tcd.h"
#include "int.h"
#include "jpip.h"
#include "jp2.h"

#define J2K_MS_SOC 0xff4f
#define J2K_MS_SOT 0xff90
#define J2K_MS_SOD 0xff93
#define J2K_MS_EOC 0xffd9
#define J2K_MS_SIZ 0xff51
#define J2K_MS_COD 0xff52
#define J2K_MS_COC 0xff53
#define J2K_MS_RGN 0xff5e
#define J2K_MS_QCD 0xff5c
#define J2K_MS_QCC 0xff5d
#define J2K_MS_POC 0xff5f
#define J2K_MS_TLM 0xff55
#define J2K_MS_PLM 0xff57
#define J2K_MS_PLT 0xff58
#define J2K_MS_PPM 0xff60
#define J2K_MS_PPT 0xff61
#define J2K_MS_SOP 0xff91
#define J2K_MS_EPH 0xff92
#define J2K_MS_CRG 0xff63
#define J2K_MS_COM 0xff64

#define J2K_STATE_MHSOC 0x0001
#define J2K_STATE_MHSIZ 0x0002
#define J2K_STATE_MH 0x0004
#define J2K_STATE_TPHSOT 0x0008
#define J2K_STATE_TPH 0x0010
#define J2K_STATE_MT 0x0020

#define START_NB 5
#define INCREMENT 5

jmp_buf j2k_error;

static int j2k_state;
static int j2k_curtileno;
static j2k_tcp_t j2k_default_tcp;
static unsigned char *j2k_eot;

static j2k_image_t *j2k_img;
static j2k_cp_t *j2k_cp;

static unsigned char **j2k_tile_data;
static int *j2k_tile_len;

static info_image_t img;


void j2k_clean() {
  int tileno = 0;
  int compno=0, resno=0, precno=0;

  tcd_free(j2k_img, j2k_cp);
  for (tileno = 0; tileno < j2k_cp->tw * j2k_cp->th; tileno++) {
    info_tile_t *tile_Idx = &img.tile[tileno];
    
    for (compno = 0; compno < img.Comp; compno++)
      {
	info_compo_t *compo_Idx = &tile_Idx->compo[compno];
	for(resno = 0; resno < img.Decomposition + 1; resno++)
	  {
	    info_reso_t *reso_Idx = &compo_Idx->reso[resno];
	    for (precno = 0; precno < img.tile[tileno].pw * img.tile[tileno].ph; precno++)
	      {
		info_prec_t *prec_Idx = &reso_Idx->prec[precno];
		free(prec_Idx->layer);
	      }
	    free(reso_Idx->prec);
	  }
	free(compo_Idx->reso);
      }
    free(tile_Idx->compo);
    free(tile_Idx->marker);
    free(tile_Idx->tile_parts);
    free(tile_Idx->marker_mul.COC);
    free(tile_Idx->marker_mul.RGN);
    free(tile_Idx->marker_mul.QCC);
    free(tile_Idx->marker_mul.PLT);
    free(tile_Idx->marker_mul.PPT);
    free(tile_Idx->marker_mul.COM);
}
  free(img.tile);
  free(img.marker);
  free(img.marker_mul.COC);
  free(img.marker_mul.RGN);
  free(img.marker_mul.QCC);
  free(img.marker_mul.PLM);
  free(img.marker_mul.PPM);
  free(img.marker_mul.COM);
}



void j2k_read_soc() {
  j2k_state=J2K_STATE_MHSIZ;
}



void j2k_read_siz() {
    int len, i;
    info_tile_t *tile;

    len = cio_read(2);

    /* <INDEX> [MHIX BOX] */
    img.marker[img.num_marker].type = J2K_MS_SIZ;
    img.marker[img.num_marker].start_pos = cio_tell()-2;
    img.marker[img.num_marker].len = len;
    img.num_marker++;
    /* </INDEX> [MHIX BOX] */
    
    cio_read(2);                      /* Rsiz (capabilities) */
    j2k_img->x1 = cio_read(4);        /* Xsiz                */
    j2k_img->y1 = cio_read(4);        /* Ysiz                */
    j2k_img->x0 = cio_read(4);        /* X0siz               */
    j2k_img->y0 = cio_read(4);        /* Y0siz               */
    j2k_cp->tdx = cio_read(4);        /* XTsiz               */
    j2k_cp->tdy = cio_read(4);        /* YTsiz               */
    j2k_cp->tx0 = cio_read(4);        /* XT0siz              */
    j2k_cp->ty0 = cio_read(4);        /* YTOsiz              */

    j2k_img->numcomps = cio_read(2);  /* Csiz                */
    j2k_img->comps = (j2k_comp_t*)malloc(j2k_img->numcomps * sizeof(j2k_comp_t));
    for (i = 0; i < j2k_img->numcomps; i++) {
        int tmp, w, h;
        tmp = cio_read(1);
        j2k_img->comps[i].prec = (tmp & 0x7f) + 1;
        j2k_img->comps[i].sgnd = tmp >> 7;
        j2k_img->comps[i].dx = cio_read(1);
        j2k_img->comps[i].dy = cio_read(1);
        w = int_ceildiv(j2k_img->x1-j2k_img->x0, j2k_img->comps[i].dx);
        h = int_ceildiv(j2k_img->y1-j2k_img->y0, j2k_img->comps[i].dy);
        j2k_img->comps[i].data = (int*)malloc(sizeof(int) * w * h);
    }
    j2k_cp->tw = int_ceildiv(j2k_img->x1 - j2k_cp->tx0, j2k_cp->tdx);
    j2k_cp->th = int_ceildiv(j2k_img->y1 - j2k_cp->ty0, j2k_cp->tdy);

    j2k_cp->tcps = (j2k_tcp_t*)calloc((j2k_cp->tw * j2k_cp->th), sizeof(j2k_tcp_t));

    for (i = 0; i < j2k_cp->tw * j2k_cp->th; i++)
      {
	j2k_cp->tcps[i].POC = 0;
	j2k_cp->tcps[i].numpocs = 0;
	// j2k_cp->tcps[i].first=1;
      }

    /* Initialization for PPM marker */
    j2k_cp->ppm = 0;
    j2k_cp->ppm_data = NULL;
    j2k_cp->ppm_previous = 0;
    j2k_cp->ppm_store = 0;

    j2k_default_tcp.tccps = (j2k_tccp_t*)malloc(j2k_img->numcomps * sizeof(j2k_tccp_t));
    for (i = 0; i < j2k_cp->tw * j2k_cp->th; i++) {
	j2k_cp->tcps[i].tccps = (j2k_tccp_t*)malloc(j2k_img->numcomps * sizeof(j2k_tccp_t));
    }
    j2k_tile_data = (unsigned char**)calloc(j2k_cp->tw * j2k_cp->th, sizeof(char*));
    j2k_tile_len = (int*)calloc(j2k_cp->tw * j2k_cp->th, sizeof(int));
    j2k_state = J2K_STATE_MH;

    /* <INDEX> */
    img.Im_w = j2k_img->x1 - j2k_img->x0;
    img.Im_h = j2k_img->y1 - j2k_img->y0;
    img.Tile_x = j2k_cp->tdx;
    img.Tile_y = j2k_cp->tdy;
    img.Comp = j2k_img->numcomps;
    img.tw = j2k_cp->tw;
    img.th = j2k_cp->th;
    img.tile = (info_tile_t*)malloc(img.tw * img.th * sizeof(info_tile_t));

    for (i = 0; i < img.tw * img.th; i++)
      {
	tile = &img.tile[i];
	tile->marker = (info_marker_t*)malloc(32 * sizeof(info_marker_t));
	tile->num_marker = 0;
	tile->marker_mul.num_COC = 0;
	tile->marker_mul.CzCOC = START_NB;
	tile->marker_mul.num_RGN = 0;
	tile->marker_mul.CzRGN = START_NB;
	tile->marker_mul.num_QCC = 0;
	tile->marker_mul.CzQCC = START_NB;
	tile->marker_mul.num_PLT = 0;
	tile->marker_mul.CzPLT = START_NB;
	tile->marker_mul.num_PPT = 0;
	tile->marker_mul.CzPPT = START_NB;
	tile->marker_mul.num_COM = 0;
	tile->marker_mul.CzCOM = START_NB;
      }
    /* </INDEX> */


 }

void j2k_read_com() {
    int len;
    info_tile_t *tile;
    info_marker_t *tmp;

    len = cio_read(2);

    /* <INDEX> [MHIX BOX] */
    if (j2k_state == J2K_STATE_MH)
      {
	if (!img.marker_mul.num_COM) 
	  img.marker_mul.COM = (info_marker_t*)malloc(img.marker_mul.CzCOM * sizeof(info_marker_t));
	if (img.marker_mul.num_COM >= img.marker_mul.CzCOM)
	  {
	    tmp = (info_marker_t*)malloc(2 * img.marker_mul.CzCOM * sizeof(info_marker_t));
	    memcpy(tmp,img.marker_mul.COM,img.marker_mul.CzCOM);
	    img.marker_mul.CzCOM *= 2;
	    free(img.marker_mul.COM);
	    img.marker_mul.COM = tmp;
	  }

	img.marker_mul.COM[img.marker_mul.num_COM].type = J2K_MS_COM;
	img.marker_mul.COM[img.marker_mul.num_COM].start_pos = cio_tell()-2;
	img.marker_mul.COM[img.marker_mul.num_COM].len = len;
	img.marker_mul.num_COM++;
      } else
	{
	  tile = &img.tile[j2k_curtileno];
	  if (!tile->marker_mul.num_COM)
	    tile->marker_mul.COM = (info_marker_t*)calloc(START_NB, sizeof(info_marker_t));
	  if (tile->marker_mul.num_COM >= tile->marker_mul.CzCOM)
	    {
	      tmp = (info_marker_t*)malloc(2 * tile->marker_mul.CzCOM * sizeof(info_marker_t));
	      memcpy(tmp,tile->marker_mul.COM,tile->marker_mul.CzCOM);
	      tile->marker_mul.CzCOM *= 2;
	      free(tile->marker_mul.COM);
	      tile->marker_mul.COM = tmp;
	    }
	  tile->marker_mul.COM[tile->marker_mul.num_COM].type = J2K_MS_COM;
	  tile->marker_mul.COM[tile->marker_mul.num_COM].start_pos = cio_tell()-2;
	  tile->marker_mul.COM[tile->marker_mul.num_COM].len = len;
	  tile->marker_mul.num_COM++;
	}
    /* </INDEX> [MHIX BOX] */

    cio_skip(len - 2);
}




void j2k_read_cox(int compno) {
    int i;
    j2k_tcp_t *tcp;
    j2k_tccp_t *tccp;

    tcp = j2k_state == J2K_STATE_TPH ? &j2k_cp->tcps[j2k_curtileno] : &j2k_default_tcp;
    tccp = &tcp->tccps[compno];
    tccp->numresolutions = cio_read(1) + 1;

    img.Decomposition = tccp->numresolutions - 1; /* <INDEX> */

    tccp->cblkw = cio_read(1) + 2;
    tccp->cblkh = cio_read(1) + 2;
    tccp->cblksty = cio_read(1);
    tccp->qmfbid = cio_read(1);
    if (tccp->csty&J2K_CP_CSTY_PRT) {
        for (i = 0; i < tccp->numresolutions; i++) {
            int tmp = cio_read(1);
            tccp->prcw[i] = tmp&0xf;
            tccp->prch[i] = tmp>>4; 
        }
    }
}




void j2k_read_cod() {
    int len, i, pos;
    j2k_tcp_t *tcp;
    info_tile_t *tile;

    tcp = j2k_state == J2K_STATE_TPH ? &j2k_cp->tcps[j2k_curtileno] : &j2k_default_tcp;
    len = cio_read(2);

    /* <INDEX> [MHIX BOX] */
    if (j2k_state == J2K_STATE_MH)
      {
	img.marker[img.num_marker].type = J2K_MS_SIZ;
	img.marker[img.num_marker].start_pos = cio_tell()-2;
	img.marker[img.num_marker].len = len;
	img.num_marker++;
      }
    else
      {
	tile = &img.tile[j2k_curtileno];
	tile->marker[tile->num_marker].type = J2K_MS_SIZ;
	tile->marker[tile->num_marker].start_pos = cio_tell()-2;
	tile->marker[tile->num_marker].len = len;
	tile->num_marker++;
  }
    /* </INDEX> [MHIX BOX] */
    
    tcp->csty = cio_read(1);
    tcp->prg = cio_read(1);
    tcp->numlayers = cio_read(2);
    tcp->mct = cio_read(1);

    pos = cio_tell();
    for (i = 0; i < j2k_img->numcomps; i++) {
        tcp->tccps[i].csty = tcp->csty&J2K_CP_CSTY_PRT;
        cio_seek(pos);
        j2k_read_cox(i);
    }
    
    /* <INDEX> */
    img.Prog = tcp->prg;
    img.Layer = tcp->numlayers;
    /* </INDEX> */
}




void j2k_read_coc() {
    int len, compno;
    j2k_tcp_t *tcp;
    info_tile_t *tile;
    info_marker_t *tmp;

    tcp = j2k_state == J2K_STATE_TPH ? &j2k_cp->tcps[j2k_curtileno] : &j2k_default_tcp;
    len = cio_read(2);
    
    /* <INDEX> [MHIX BOX] */
    if (j2k_state == J2K_STATE_MH)
      {
	if (!img.marker_mul.num_COC)
	  img.marker_mul.COC = (info_marker_t*)malloc(img.marker_mul.CzCOC * sizeof(info_marker_t));
	if (img.marker_mul.num_COC >= img.marker_mul.CzCOC)
	  {
	    tmp = (info_marker_t*)malloc((INCREMENT + img.marker_mul.CzCOC) * sizeof(info_marker_t));
	    memcpy(tmp,img.marker_mul.COC,img.marker_mul.CzCOC);
	    img.marker_mul.CzCOC += INCREMENT;
	    free(img.marker_mul.COC);
	    img.marker_mul.COC = tmp;
	  }
	img.marker_mul.COC[img.marker_mul.num_COC].type = J2K_MS_COC;
	img.marker_mul.COC[img.marker_mul.num_COC].start_pos = cio_tell()-2;
	img.marker_mul.COC[img.marker_mul.num_COC].len = len;
	img.marker_mul.num_COC++;
      } else
	{
	  tile = &img.tile[j2k_curtileno];
	  if (!tile->marker_mul.num_COC)
	    tile->marker_mul.COC = (info_marker_t*)malloc(tile->marker_mul.CzCOC * sizeof(info_marker_t));
	  if (tile->marker_mul.num_COC >= tile->marker_mul.CzCOC)
	    {
	      tmp = (info_marker_t*)malloc((INCREMENT + tile->marker_mul.CzCOC) * sizeof(info_marker_t));
	      memcpy(tmp,tile->marker_mul.COC,tile->marker_mul.CzCOC);
	      tile->marker_mul.CzCOC += INCREMENT;
	      free(tile->marker_mul.COC);
	      tile->marker_mul.COC = tmp;
	    }
	  tile->marker_mul.COC[tile->marker_mul.num_COC].type = J2K_MS_COC;
	  tile->marker_mul.COC[tile->marker_mul.num_COC].start_pos = cio_tell() - 2;
	  tile->marker_mul.COC[tile->marker_mul.num_COC].len = len;
	  tile->marker_mul.num_COC++;
	}
    /* </INDEX> [MHIX BOX] */
    
    compno =cio_read(j2k_img->numcomps <= 256 ? 1 : 2);

    tcp->tccps[compno].csty = cio_read(1);
    j2k_read_cox(compno);
}




void j2k_read_qcx(int compno, int len) {
    int tmp;
    j2k_tcp_t *tcp;
    j2k_tccp_t *tccp;
    int bandno, numbands;

    tcp = j2k_state == J2K_STATE_TPH ? &j2k_cp->tcps[j2k_curtileno] : &j2k_default_tcp;
    tccp = &tcp->tccps[compno];
    tmp = cio_read(1);
    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) { /* WHY STEPSIZES WHEN NOQNT ? */
            expn = cio_read(1) >> 3;
            mant = 0;
        } else {
            tmp = cio_read(2);
            expn = tmp >> 11;
            mant = tmp & 0x7ff;
        }
        tccp->stepsizes[bandno].expn = expn;
        tccp->stepsizes[bandno].mant = mant;
    }
}




void j2k_read_qcd() {
    int len, i, pos;
    info_tile_t *tile;

    len = cio_read(2);    

    /* <INDEX> [MHIX BOX] */
    if (j2k_state == J2K_STATE_MH)
      {
	img.marker[img.num_marker].type = J2K_MS_QCD;
	img.marker[img.num_marker].start_pos = cio_tell()-2;
	img.marker[img.num_marker].len = len;
	img.num_marker++;
      }	 else
	{
	  tile = &img.tile[j2k_curtileno];
	  tile->marker[tile->num_marker].type = J2K_MS_QCD;
	  tile->marker[tile->num_marker].start_pos = cio_tell()-2;
	  tile->marker[tile->num_marker].len = len;
	  tile->num_marker++;
	}
    /* </INDEX> [MHIX BOX] */
    
    
    pos=cio_tell();
    for (i = 0; i < j2k_img->numcomps; i++) {
        cio_seek(pos);
        j2k_read_qcx(i, len - 2);
    }
}




void j2k_read_qcc() {
  int len, compno;
  info_tile_t *tile;
  info_marker_t *tmp;

  len = cio_read(2);  
  /* <INDEX> [MHIX BOX] */
  if (j2k_state == J2K_STATE_MH)
    {
      if (!img.marker_mul.num_QCC)
	img.marker_mul.QCC = (info_marker_t*)malloc(img.marker_mul.CzQCC * sizeof(info_marker_t));
	if (img.marker_mul.num_QCC >= img.marker_mul.CzQCC)
	  {
	    tmp = (info_marker_t*)malloc((INCREMENT + img.marker_mul.CzQCC) * sizeof(info_marker_t));
	    memcpy(tmp,img.marker_mul.QCC,img.marker_mul.CzQCC);
	    img.marker_mul.CzQCC += INCREMENT;
	    free(img.marker_mul.QCC);
	    img.marker_mul.QCC = tmp;
	  }
      img.marker_mul.QCC[img.marker_mul.num_QCC].type = J2K_MS_QCC;
      img.marker_mul.QCC[img.marker_mul.num_QCC].start_pos = cio_tell() - 2;
      img.marker_mul.QCC[img.marker_mul.num_QCC].len = len;
      img.marker_mul.num_QCC++;
    } else
      {
	tile = &img.tile[j2k_curtileno];
	if (!tile->marker_mul.num_QCC)
	  tile->marker_mul.QCC = (info_marker_t*)malloc(tile->marker_mul.CzQCC * sizeof(info_marker_t));
	if (tile->marker_mul.num_QCC >= tile->marker_mul.CzQCC)
	  {
	    tmp = (info_marker_t*)malloc((INCREMENT + tile->marker_mul.CzQCC) * sizeof(info_marker_t));
	    memcpy(tmp,tile->marker_mul.QCC,tile->marker_mul.CzQCC);
	    tile->marker_mul.CzQCC += INCREMENT;
	    free(tile->marker_mul.QCC);
	    tile->marker_mul.QCC = tmp;
	  }
	tile->marker_mul.QCC[tile->marker_mul.num_QCC].type = J2K_MS_QCC;
	tile->marker_mul.QCC[tile->marker_mul.num_QCC].start_pos = cio_tell()-2;
	tile->marker_mul.QCC[tile->marker_mul.num_QCC].len = len;
	tile->marker_mul.num_QCC++;
      }
  /* </INDEX> [MHIX BOX] */
 
  compno = cio_read(j2k_img->numcomps <= 256 ? 1 : 2);
  j2k_read_qcx(compno, len - 2 - (j2k_img->numcomps <= 256 ? 1 : 2));
}




void j2k_read_poc() {
  int len, numpchgs, i, old_poc;
  j2k_tcp_t *tcp;
  j2k_tccp_t *tccp;
  info_tile_t *tile;

  tcp = j2k_state == J2K_STATE_TPH ? &j2k_cp->tcps[j2k_curtileno] : &j2k_default_tcp;
  old_poc = tcp->POC ? tcp->numpocs+1 : 0;
  tcp->POC = 1;
  tccp = &tcp->tccps[0];
  len = cio_read(2);
  
  /* <INDEX> [MHIX BOX] */
  if (j2k_state == J2K_STATE_MH)
    {
      img.marker[img.num_marker].type = J2K_MS_POC;
      img.marker[img.num_marker].start_pos = cio_tell()-2;
      img.marker[img.num_marker].len = len;
      img.num_marker++;
    } else
      {
	tile = &img.tile[j2k_curtileno];
	tile->marker[tile->num_marker].type = J2K_MS_POC;
	tile->marker[tile->num_marker].start_pos = cio_tell()-2;
	tile->marker[tile->num_marker].len = len;
	tile->num_marker++;
      }
  /* </INDEX> [MHIX BOX] */

    numpchgs = (len - 2) / (5 + 2 * (j2k_img->numcomps <= 256 ? 1 : 2));
    for (i = 0; i < numpchgs; i++) {
      j2k_poc_t *poc;
      poc = &tcp->pocs[i];
      poc->resno0 = cio_read(1);
      poc->compno0 = cio_read(j2k_img->numcomps <= 256 ? 1 : 2);
      poc->layno1 = int_min(cio_read(2), tcp->numlayers);
      poc->resno1 = int_min(cio_read(1), tccp->numresolutions);
      poc->compno1 = int_min(cio_read(j2k_img->numcomps <= 256 ? 1 : 2), j2k_img->numcomps);
      poc->prg = cio_read(1);
    }

    tcp->numpocs = numpchgs + old_poc - 1;
}




void j2k_read_crg() {
    int len, i, Xcrg_i, Ycrg_i;

    len = cio_read(2);

    /* <INDEX> [MHIX BOX] */
    img.marker[img.num_marker].type = J2K_MS_CRG;
    img.marker[img.num_marker].start_pos = cio_tell()-2;
    img.marker[img.num_marker].len = len;
    img.num_marker++;
    /* </INDEX> [MHIX BOX] */

    for (i = 0; i < j2k_img->numcomps; i++)
      {  
	Xcrg_i = cio_read(2);
	Ycrg_i = cio_read(2);
      }
}




void j2k_read_tlm() {
    int len, Ztlm, Stlm, ST, SP, tile_tlm, i;
    long int Ttlm_i, Ptlm_i;
    info_marker_t *tmp;

    len = cio_read(2);

    /* <INDEX> [MHIX BOX] */
    if (!img.marker_mul.num_TLM)
      img.marker_mul.TLM = (info_marker_t*)malloc(img.marker_mul.CzTLM * sizeof(info_marker_t));
    if (img.marker_mul.num_TLM >= img.marker_mul.CzTLM)
      {
	tmp = (info_marker_t*)malloc((INCREMENT + img.marker_mul.CzTLM) * sizeof(info_marker_t));
	memcpy(tmp,img.marker_mul.TLM,img.marker_mul.CzTLM);
	img.marker_mul.CzTLM += INCREMENT;
	free(img.marker_mul.TLM);
	img.marker_mul.TLM = tmp;
      }
    img.marker_mul.TLM[img.marker_mul.num_TLM].type = J2K_MS_TLM;
    img.marker_mul.TLM[img.marker_mul.num_TLM].start_pos = cio_tell()-2;
    img.marker_mul.TLM[img.marker_mul.num_TLM].len = len;
    img.marker_mul.num_TLM++;
    /* </INDEX> [MHIX BOX] */
    
    Ztlm = cio_read(1);
    Stlm = cio_read(1);
    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(ST);
	Ptlm_i = cio_read(SP ? 4 : 2);
      }
}




void j2k_read_plm() {
    int len, i, Z_plm, N_plm, add, packet_len=0;
    info_marker_t *tmp;

    len=cio_read(2);

    /* <INDEX> [MHIX BOX] */
    if (!img.marker_mul.num_PLM)
      img.marker_mul.PLM = (info_marker_t*)malloc(img.marker_mul.CzPLM * sizeof(info_marker_t));
    if (img.marker_mul.num_PLM >= img.marker_mul.CzPLM)
      {
	tmp = (info_marker_t*)malloc((INCREMENT + img.marker_mul.CzPLM) * sizeof(info_marker_t));
	memcpy(tmp,img.marker_mul.PLM,img.marker_mul.CzPLM);
	img.marker_mul.CzPLM += INCREMENT;
	free(img.marker_mul.PLM);
	img.marker_mul.PLM = tmp;
      }
    img.marker_mul.PLM[img.marker_mul.num_PLM].type = J2K_MS_PLM;
    img.marker_mul.PLM[img.marker_mul.num_PLM].start_pos = cio_tell()-2;
    img.marker_mul.PLM[img.marker_mul.num_PLM].len = len;
    img.marker_mul.num_PLM++;
    /* </INDEX> [MHIX BOX] */

    Z_plm = cio_read(1);
    len -= 3;
    while (len > 0)
      {
	N_plm = cio_read(4);
	len -= 4;
	for (i = N_plm ; i > 0 ; i--)
	  {
	    add = cio_read(1);
	    len--;
	    packet_len = (packet_len << 7) + add;
	    if ((add & 0x80) == 0)
	      {
		/* New packet */
		packet_len = 0;
	      }
	    if (len <= 0) break;
	  } 
      }
}




void j2k_read_plt() {
    int len, i, Zplt, packet_len=0, add;
    info_tile_t *tile;
    info_marker_t *tmp;
;
    len = cio_read(2);
 
    /* <INDEX> [MHIX BOX] */
    tile = &img.tile[j2k_curtileno];
    if (!tile->marker_mul.num_PLT)
      tile->marker_mul.PLT = (info_marker_t*)malloc(tile->marker_mul.CzPLT * sizeof(info_marker_t));
    if (tile->marker_mul.num_PLT >= tile->marker_mul.CzPLT)
      {
	tmp = (info_marker_t*)malloc((INCREMENT + tile->marker_mul.CzPLT) * sizeof(info_marker_t));
	memcpy(tmp,tile->marker_mul.PLT,tile->marker_mul.CzPLT);
	tile->marker_mul.CzPLT += INCREMENT;
	free(tile->marker_mul.PLT);
	tile->marker_mul.PLT = tmp;
      }

    tile->marker_mul.PLT[tile->marker_mul.num_PLT].type = J2K_MS_PLT;
    tile->marker_mul.PLT[tile->marker_mul.num_PLT].start_pos = cio_tell()-2;
    tile->marker_mul.PLT[tile->marker_mul.num_PLT].len = len;
    tile->marker_mul.num_PLT++;
    /* </INDEX> [MHIX BOX] */
    
    Zplt = cio_read(1);
    for (i = len-3; i > 0; i--)
      {
	add = cio_read(1);
	packet_len = (packet_len << 7) + add;
	if ((add & 0x80) == 0)
	  {
	    /* New packet */
	    packet_len = 0;
	  }
      }
}




void j2k_read_ppm() {
    int len, Z_ppm, i, j;
    int N_ppm;
    info_marker_t *tmp;

    len = cio_read(2);
    
    /* <INDEX> [MHIX BOX] */
    if (!img.marker_mul.num_PPM)
      img.marker_mul.PPM = (info_marker_t*)malloc(img.marker_mul.CzPPM * sizeof(info_marker_t));
    if (img.marker_mul.num_PPM >= img.marker_mul.CzPPM)
      {
	tmp = (info_marker_t*)malloc((INCREMENT + img.marker_mul.CzPPM) * sizeof(info_marker_t));
	memcpy(tmp,img.marker_mul.PPM,img.marker_mul.CzPPM);
	img.marker_mul.CzPPM += INCREMENT;
	free(img.marker_mul.PPM);
	img.marker_mul.PPM = tmp;
      }
    img.marker_mul.PLM[img.marker_mul.num_PPM].type = J2K_MS_PPM;
    img.marker_mul.PLM[img.marker_mul.num_PPM].start_pos = cio_tell()-2;
    img.marker_mul.PLM[img.marker_mul.num_PPM].len = len;
    img.marker_mul.num_PPM++;
    /* </INDEX> [MHIX BOX] */
    
    j2k_cp->ppm = 1;
    
    Z_ppm = cio_read(1); /* Z_ppm */
    len -= 3;
    while (len > 0)
      {
	if (j2k_cp->ppm_previous == 0)
	  {
	    N_ppm = cio_read(4); /* N_ppm */
	    len -= 4;
	  } else
	    {
	      N_ppm = j2k_cp->ppm_previous;
	    }
	
	j = j2k_cp->ppm_store;
	if (Z_ppm == 0) /* First PPM marker */
	  j2k_cp->ppm_data = (unsigned char*)calloc(N_ppm, sizeof(unsigned char));
	else      /* NON-first PPM marker */
	  j2k_cp->ppm_data = (unsigned char*)realloc(j2k_cp->ppm_data, (N_ppm + j2k_cp->ppm_store) * sizeof(unsigned char));
	
	for (i = N_ppm ; i > 0 ; i--) /* Read packet header */
	  {
	    j2k_cp->ppm_data[j] = cio_read(1);
	    j++;
	    len--;
	    if (len == 0) break; /* Case of non-finished packet header in present marker but finished in next one */
	  }
	
	j2k_cp->ppm_previous = i - 1;
	j2k_cp->ppm_store = j;
      }
}




void j2k_read_ppt() {
    int len, Z_ppt, i, j = 0;
    j2k_tcp_t *tcp;
    info_tile_t *tile;
    len=cio_read(2);

    /* <INDEX> [MHIX BOX] */
    tile = & img.tile[j2k_curtileno];
    tile->marker[tile->num_marker].type = J2K_MS_PPT;
    tile->marker[tile->num_marker].start_pos = cio_tell()-2;
    tile->marker[tile->num_marker].len = len;
    tile->num_marker++;
    /* </INDEX> [MHIX BOX] */

    Z_ppt = cio_read(1);
    tcp = &j2k_cp->tcps[j2k_curtileno];
    tcp->ppt = 1;
    if (Z_ppt == 0) /* First PPT marker */
      {
	tcp->ppt_data = (unsigned char*)calloc(len - 3, sizeof(unsigned char));
	tcp->ppt_store = 0;
      }
    else      /* NON-first PPT marker */
      tcp->ppt_data = (unsigned char*)realloc(tcp->ppt_data, (len - 3 + tcp->ppt_store) * sizeof(unsigned char));
    
    j = tcp->ppt_store;
    for (i = len - 3 ; i > 0 ; i--)
      {
	tcp->ppt_data[j] = cio_read(1);
	j++;
      }
    tcp->ppt_store = j;
}




void j2k_read_sot() {
    int len, tileno, totlen, partno, numparts, i;
    j2k_tcp_t *tcp;
    j2k_tccp_t *tmp;
    info_tile_t *tile;
    info_tile_part_t *tilepart_tmp;
    
 
    //fprintf(stderr,"SOT\n");
    len = cio_read(2);
    tileno = cio_read(2);
    /* <INDEX> [MHIX BOX] */
    tile = & img.tile[tileno];
    tile->marker[tile->num_marker].type = J2K_MS_SOT;
    tile->marker[tile->num_marker].start_pos = cio_tell() - 4;
    tile->marker[tile->num_marker].len = len;
    tile->num_marker++;
    /* </INDEX> [MHIX BOX] */
 
    totlen = cio_read(4);
    if (!totlen) totlen = cio_numbytesleft() + 8;
    partno = cio_read(1);
    numparts = cio_read(1);

    /* <INDEX> */
    if (tileno == 0 && partno == 0 ) 
      img.Main_head_end = cio_tell() - 7;  /* Correction End = First byte of first SOT */
    
    img.tile[tileno].num_tile = tileno;
    /* </INDEX> */
  
    tile->numparts = partno + 1;                                               /* INDEX : Number of tile_parts for the tile */ 
    img.num_max_tile_parts = int_max(tile->numparts, img.num_max_tile_parts);  /* INDEX : Maximum number of tile_part per tile */

    if (partno == 0)
    {
      tile->tile_parts = (info_tile_part_t*)malloc(START_NB * sizeof(info_tile_part_t*));
      tile->Cztile_parts = START_NB;
    }
    if (partno >= tile->Cztile_parts)
      {
	tilepart_tmp = (info_tile_part_t*)malloc((INCREMENT + tile->Cztile_parts) * sizeof(info_tile_part_t));
	memcpy(tmp, tile->tile_parts, tile->Cztile_parts);
	tile->Cztile_parts += INCREMENT;
	free(tile->tile_parts);
	tile->tile_parts = tilepart_tmp;
      }

    tile->tile_parts[partno].start_pos = cio_tell() - 12;        /* INDEX : start_pos of the tile_part       */
    tile->tile_parts[partno].length = totlen;                    /* INDEX : length of the tile_part          */  
    tile->tile_parts[partno].end_pos = totlen + cio_tell() - 12; /* INDEX : end position of the tile_part    */


    j2k_curtileno = tileno;
    j2k_eot = cio_getbp() - 12 + totlen;
    j2k_state = J2K_STATE_TPH;
    tcp = &j2k_cp->tcps[j2k_curtileno];
    
    tile->tile_parts[numparts].num_reso_AUX = tcp->tccps[0].numresolutions; /* INDEX : AUX value for TPIX       */

     if (partno == 0)
       //  if (tcp->first == 1) 
      {
	tmp = tcp->tccps;
	*tcp = j2k_default_tcp;
	/* Initialization PPT */
	tcp->ppt = 0; 
	tcp->ppt_data = NULL;
	
	tcp->tccps = tmp;
	for (i = 0; i < j2k_img->numcomps; i++) {
	  tcp->tccps[i] = j2k_default_tcp.tccps[i];
	}
	//j2k_cp->tcps[j2k_curtileno].first=0;
      }
}



void j2k_read_rgn() {
    int len, compno, roisty;
    j2k_tcp_t *tcp;
    info_tile_t *tile;
    info_marker_t *tmp;
    // fprintf(stderr,"RGN\n");
    tcp = j2k_state == J2K_STATE_TPH ? &j2k_cp->tcps[j2k_curtileno] : &j2k_default_tcp;
    len = cio_read(2);
    
    /* <INDEX> [MHIX BOX]*/
    if (j2k_state == J2K_STATE_MH)
      {
	if (!img.marker_mul.num_RGN)
	  img.marker_mul.RGN = (info_marker_t*)malloc(img.marker_mul.CzRGN * sizeof(info_marker_t));
	if (img.marker_mul.num_RGN >= img.marker_mul.CzRGN)
	  {
	    tmp = (info_marker_t*)malloc((INCREMENT + img.marker_mul.CzRGN) * sizeof(info_marker_t));
	    memcpy(tmp,img.marker_mul.RGN, img.marker_mul.CzRGN);
	    img.marker_mul.CzRGN += INCREMENT;
	    free(img.marker_mul.RGN);
	    img.marker_mul.RGN = tmp;
	  }
	img.marker_mul.RGN[img.marker_mul.num_RGN].type = J2K_MS_RGN;
	img.marker_mul.RGN[img.marker_mul.num_RGN].start_pos = cio_tell() - 2;
	img.marker_mul.RGN[img.marker_mul.num_RGN].len = len;
	img.marker_mul.num_RGN++;
      } else
      {
	tile = &img.tile[j2k_curtileno];
	if (!tile->marker_mul.num_RGN)
	  tile->marker_mul.RGN = (info_marker_t*)malloc(tile->marker_mul.CzRGN * sizeof(info_marker_t));
	if (tile->marker_mul.num_RGN >= tile->marker_mul.CzRGN)
	  {
	    tmp = (info_marker_t*)malloc((INCREMENT + tile->marker_mul.CzRGN) * sizeof(info_marker_t));
	    memcpy(tmp,tile->marker_mul.RGN,tile->marker_mul.CzRGN);
	    tile->marker_mul.CzRGN += INCREMENT;
	    free(tile->marker_mul.RGN);
	    tile->marker_mul.RGN = tmp;
	  }

	tile->marker_mul.RGN[tile->marker_mul.num_RGN].type = J2K_MS_RGN;
	tile->marker_mul.RGN[tile->marker_mul.num_RGN].start_pos = cio_tell() - 2;
        tile->marker_mul.RGN[tile->marker_mul.num_RGN].len = len;
	tile->marker_mul.num_RGN++;
      }
    /* </INDEX> [MHIX BOX] */
    
    compno = cio_read(j2k_img->numcomps <= 256 ? 1 : 2);
    roisty = cio_read(1);
    tcp->tccps[compno].roishift = cio_read(1);
}





void j2k_read_sod() {
    int len;
    unsigned char *data;
    info_tile_t *tile;
    info_tile_part_t *tile_part;
    // fprintf(stderr,"SOD\n");
    /* <INDEX> [MHIX BOX] */
    tile = &img.tile[j2k_curtileno];
    tile->marker[tile->num_marker].type = J2K_MS_SOD;
    tile->marker[tile->num_marker].start_pos = cio_tell();
    tile->marker[tile->num_marker].len = 0;
    tile->num_marker++;
    /* </INDEX> [MHIX BOX] */

    tile_part = &tile->tile_parts[tile->numparts - 1];                   /* INDEX : Current tilepart of a tile                  */
    tile_part->length_header = cio_tell() - 1 - tile_part->start_pos;    /* INDEX : length of the tile-part header              */
    tile_part->end_header = cio_tell() - 1;                              /* INDEX : end header position of the tile-part header */

    len = int_min(j2k_eot - cio_getbp(), cio_numbytesleft());
    
    j2k_tile_len[j2k_curtileno] += len;
    data = (unsigned char*)realloc(j2k_tile_data[j2k_curtileno], j2k_tile_len[j2k_curtileno]);   
    memcpy(data, cio_getbp(), len);
    j2k_tile_data[j2k_curtileno] = data;
    cio_skip(len);
    j2k_state = J2K_STATE_TPHSOT;
}

void j2k_read_eoc() {
    int tileno;
    tcd_init(j2k_img, j2k_cp, &img);
    for (tileno = 0; tileno<j2k_cp->tw * j2k_cp->th; tileno++) {
        tcd_decode_tile(j2k_tile_data[tileno], j2k_tile_len[tileno], tileno, &img);
    }

    j2k_state = J2K_STATE_MT;
     longjmp(j2k_error, 1);
}




void j2k_read_unk() {
    fprintf(stderr, "warning: unknown marker\n");
}




int j2k_index_JPIP(char *Idx_file, char *J2K_file, int len, int version){
  FILE *dest;
  char *index;
  int pos_iptr, end_pos;
  int len_cidx, pos_cidx;
  int len_jp2c, pos_jp2c;
  int len_fidx, pos_fidx;

  dest=fopen(Idx_file, "wb");
  if (!dest) {
    fprintf(stderr, "Failed to open %s for reading !!\n", Idx_file);
    return 0;
  }

  /* INDEX MODE JPIP */
 index = (char*)malloc(len); 
 cio_init(index, len);
 jp2_write_jp();
 jp2_write_ftyp();
 
 jp2_write_jp2h(j2k_img);
 jp2_write_dbtl(Idx_file);

 pos_iptr=cio_tell();
 cio_skip(24); /* IPTR further ! */
 
 pos_jp2c = cio_tell();
 len_jp2c = jp2_write_jp2c(J2K_file);

 pos_cidx = cio_tell();
 len_cidx = jpip_write_cidx(pos_jp2c + 8,img, j2k_cp, version); /* Correction len_jp2C --> pos_jp2c + 8 */  

 
 pos_fidx = cio_tell();
 len_fidx = jpip_write_fidx(pos_jp2c, len_jp2c, pos_cidx, len_cidx);

end_pos = cio_tell();

 cio_seek(pos_iptr);
 jpip_write_iptr(pos_fidx,len_fidx);
 cio_seek(end_pos);
 
 fwrite(index, 1, cio_tell(), dest);
 free(index);

 fclose(dest);
 return 1;
}



typedef struct {
  int id;
    int states;
    void (*handler)();
} j2k_dec_mstabent_t;

j2k_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}
};

j2k_dec_mstabent_t *j2k_dec_mstab_lookup(int id) {
    j2k_dec_mstabent_t *e;
    for (e = j2k_dec_mstab; e->id != 0; e++) {
        if (e->id == id) {
            break;
        }
    }
    return e;
}

int j2k_decode(unsigned char *src, int len, j2k_image_t **image, j2k_cp_t **cp) {
    if (setjmp(j2k_error)) {
        if (j2k_state != J2K_STATE_MT) {
            fprintf(stderr, "WARNING: incomplete bitstream\n");
            return 0;
        }
        return cio_numbytes();
    }
    j2k_img = (j2k_image_t*)calloc(1, sizeof(j2k_image_t));
    j2k_cp = (j2k_cp_t*)calloc(1, sizeof(j2k_cp_t));
    *image = j2k_img;
    *cp = j2k_cp;
    j2k_state = J2K_STATE_MHSOC;
    cio_init(src, len);
    for (;;) {
        j2k_dec_mstabent_t *e;
        int id = cio_read(2);
        if (id >> 8 != 0xff) {
            fprintf(stderr, "%.8x: expected a marker instead of %x\n", cio_tell() - 2, id);
            return 0;
        }
        e = j2k_dec_mstab_lookup(id);
        if (!(j2k_state & e->states)) {
            fprintf(stderr, "%.8x: unexpected marker %x\n", cio_tell() - 2, id);
            return 0;
        }
        if (e->handler) {
            (*e->handler)();
        }
    }

}


#ifdef WIN32
#include <windows.h>

BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
    switch (ul_reason_for_call) {
		case DLL_PROCESS_ATTACH:
		case DLL_THREAD_ATTACH:
		case DLL_THREAD_DETACH:
		case DLL_PROCESS_DETACH:
			break;
    }
    return TRUE;
}
#endif

int main(int argc, char **argv)
{  
  FILE *src;
  int totlen;
  char *j2kfile;
  j2k_image_t *imgg;
  j2k_cp_t *cp;
  int version;

  if (argc != 4)
    {
      fprintf(stderr,"\nERROR in entry : index_create J2K-file Idx-file version\n\nVersion : 0, 1, 2 or 3\n\n");
      return 1;
    }

  src=fopen(argv[1], "rb");
  if (!src) {
    fprintf(stderr, "Failed to open %s for reading !!\n", argv[1]);
    return 1;
  }

  /* length of the codestream */
  fseek(src, 0, SEEK_END);
  totlen = ftell(src);
  fseek(src, 0, SEEK_SET);
  
  j2kfile = (char*)malloc(totlen);
  fread(j2kfile, 1, totlen, src);
  fclose(src);

  img.marker = (info_marker_t*)malloc(32 * sizeof(info_marker_t));
  img.num_marker = 0;
  img.num_max_tile_parts = 0;
  img.marker_mul.num_COC = 0;
  img.marker_mul.CzCOC = START_NB;
  img.marker_mul.num_RGN = 0;
  img.marker_mul.CzRGN = START_NB;
  img.marker_mul.num_QCC = 0;
  img.marker_mul.CzQCC = START_NB;
  img.marker_mul.num_TLM = 0;
  img.marker_mul.CzTLM = START_NB;
  img.marker_mul.num_PLM = 0;
  img.marker_mul.CzPLM = START_NB;
  img.marker_mul.num_PPM = 0;
  img.marker_mul.CzPPM = START_NB;
  img.marker_mul.num_COM = 0;
  img.marker_mul.CzCOM = START_NB;

  /* decode */ 

  if (!j2k_decode(j2kfile, totlen, &imgg, &cp)) {
    fprintf(stderr, "Index_creator: failed to decode image!\n");
    return 1;
  }
  free(j2kfile);
  
  // fseek(src, 0, SEEK_SET);
  img.codestream_size = totlen;
  sscanf(argv[3], "%d", &version);
  if (version > 3)
    {
      fprintf(stderr,"Error : value of version unauthorized !!  Value accepted : 0, 1, 2 or 3 !!\n");
      return 0;
    }

  j2k_index_JPIP(argv[2], argv[1], totlen * 2 > 60000 ? totlen * 2 : 60000, version);
  
  j2k_clean();
  return 0;
}