update j2k_lib with new opj type
[openjpeg.git] / libopenjpeg / pi.c
index 87bd26353481867fc9675158711089754052a41b..8ebc510cc9f593232f4291e3e935b3c91a1472b5 100644 (file)
@@ -1,9 +1,11 @@
 /*
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
  * Copyright (c) 2001-2003, David Janssens
  * Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
- * Copyright (c) 2005, Herv Drolon, FreeImage Team
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2006-2007, Parvatha Elangovan
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 
 #include "opj_includes.h"
 
-/* 
+/** @defgroup PI PI - Implementation of a packet iterator */
+/*@{*/
+
+/** @name Local static functions */
+/*@{*/
+
+/**
+Get next packet in layer-resolution-component-precinct order.
+@param pi packet iterator to modify
+@return returns false if pi pointed to the last packet or else returns true
+*/
+static opj_bool pi_next_lrcp(opj_pi_iterator_t * pi);
+/**
+Get next packet in resolution-layer-component-precinct order.
+@param pi packet iterator to modify
+@return returns false if pi pointed to the last packet or else returns true
+*/
+static opj_bool pi_next_rlcp(opj_pi_iterator_t * pi);
+/**
+Get next packet in resolution-precinct-component-layer order.
+@param pi packet iterator to modify
+@return returns false if pi pointed to the last packet or else returns true
+*/
+static opj_bool pi_next_rpcl(opj_pi_iterator_t * pi);
+/**
+Get next packet in precinct-component-resolution-layer order.
+@param pi packet iterator to modify
+@return returns false if pi pointed to the last packet or else returns true
+*/
+static opj_bool pi_next_pcrl(opj_pi_iterator_t * pi);
+/**
+Get next packet in component-precinct-resolution-layer order.
+@param pi packet iterator to modify
+@return returns false if pi pointed to the last packet or else returns true
+*/
+static opj_bool pi_next_cprl(opj_pi_iterator_t * pi);
+
+/**
+ * Updates the coding parameters if the encoding is used with Progression order changes and final (or cinema parameters are used).
+ *
+ * @param      p_cp            the coding parameters to modify
+ * @param      p_tileno        the tile index being concerned.
+ * @param      p_tx0           X0 parameter for the tile
+ * @param      p_tx1           X1 parameter for the tile
+ * @param      p_ty0           Y0 parameter for the tile
+ * @param      p_ty1           Y1 parameter for the tile
+ * @param      p_max_prec      the maximum precision for all the bands of the tile
+ * @param      p_max_res       the maximum number of resolutions for all the poc inside the tile.
+ * @param      p_dx_min                the minimum dx of all the components of all the resolutions for the tile.
+ * @param      p_dy_min                the minimum dy of all the components of all the resolutions for the tile.
+ */
+static void pi_update_encode_poc_and_final (opj_cp_v2_t *p_cp,
+                                                                        OPJ_UINT32 p_tileno,
+                                                                        OPJ_INT32 p_tx0,
+                                                                        OPJ_INT32 p_tx1,
+                                                                        OPJ_INT32 p_ty0,
+                                                                        OPJ_INT32 p_ty1,
+                                                                        OPJ_UINT32 p_max_prec,
+                                                                        OPJ_UINT32 p_max_res,
+                                     OPJ_UINT32 p_dx_min,
+                                                                        OPJ_UINT32 p_dy_min);
+
+void pi_update_encode_not_poc ( opj_cp_v2_t *p_cp,
+                                                               OPJ_UINT32 p_num_comps,
+                                                               OPJ_UINT32 p_tileno,
+                                                               OPJ_INT32 p_tx0,
+                                                               OPJ_INT32 p_tx1,
+                                                               OPJ_INT32 p_ty0,
+                                                               OPJ_INT32 p_ty1,
+                                                               OPJ_UINT32 p_max_prec,
+                                                               OPJ_UINT32 p_max_res,
+                                OPJ_UINT32 p_dx_min,
+                                                               OPJ_UINT32 p_dy_min);
+
+void get_encoding_parameters(  const opj_image_t *p_image,
+                                                               const opj_cp_v2_t *p_cp,
+                                                               OPJ_UINT32  tileno,
+                                                               OPJ_INT32  * p_tx0,
+                                                               OPJ_INT32 * p_tx1,
+                                                               OPJ_INT32 * p_ty0,
+                                                               OPJ_INT32 * p_ty1,
+                                                               OPJ_UINT32 * p_dx_min,
+                                                               OPJ_UINT32 * p_dy_min,
+                                                               OPJ_UINT32 * p_max_prec,
+                                                               OPJ_UINT32 * p_max_res );
+
+void get_all_encoding_parameters(
+                                                               const opj_image_t *p_image,
+                                                               const opj_cp_v2_t *p_cp,
+                                                               OPJ_UINT32 tileno,
+                                                               OPJ_INT32 * p_tx0,
+                                                               OPJ_INT32 * p_tx1,
+                                                               OPJ_INT32 * p_ty0,
+                                                               OPJ_INT32 * p_ty1,
+                                                               OPJ_UINT32 * p_dx_min,
+                                                               OPJ_UINT32 * p_dy_min,
+                                                               OPJ_UINT32 * p_max_prec,
+                                                               OPJ_UINT32 * p_max_res,
+                                                               OPJ_UINT32 ** p_resolutions
+                                                       );
+
+opj_pi_iterator_t * pi_create( const opj_image_t *image,
+                                                               const opj_cp_v2_t *cp,
+                                                               OPJ_UINT32 tileno );
+
+void pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,opj_tcp_v2_t * p_tcp,OPJ_UINT32 p_max_precision,OPJ_UINT32 p_max_res);
+void pi_update_decode_poc (opj_pi_iterator_t * p_pi,opj_tcp_v2_t * p_tcp,OPJ_UINT32 p_max_precision,OPJ_UINT32 p_max_res);
+
+OPJ_INT32 pi_check_next_level( OPJ_INT32 pos,
+                                                               opj_cp_v2_t *cp,
+                                                               OPJ_UINT32 tileno,
+                                                               OPJ_UINT32 pino,
+                                                               const OPJ_CHAR *prog);
+
+/*@}*/
+
+/*@}*/
+
+/*
 ==========================================================
    local functions
 ==========================================================
 */
 
-static bool pi_next_lrcp(opj_pi_iterator_t * pi) {
-  opj_pi_comp_t *comp = NULL;
-  opj_pi_resolution_t *res = NULL;
-  long index = 0;
-  
-  if (!pi->first) {
-    comp = &pi->comps[pi->compno];
-    res = &comp->resolutions[pi->resno];
-    goto LABEL_SKIP;
-  } else {
-    pi->first = 0;
-  }
-
-  for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
-    for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
-    pi->resno++) {
-      for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
-        comp = &pi->comps[pi->compno];
-        if (pi->resno >= comp->numresolutions) {
-          continue;
-        }
-        res = &comp->resolutions[pi->resno];
-        for (pi->precno = 0; pi->precno < res->pw * res->ph; pi->precno++) {
-          index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
-          if (!pi->include[index]) {
-            pi->include[index] = 1;
-            return true;
-          }
+static opj_bool pi_next_lrcp(opj_pi_iterator_t * pi) {
+       opj_pi_comp_t *comp = NULL;
+       opj_pi_resolution_t *res = NULL;
+       long index = 0;
+       
+       if (!pi->first) {
+               comp = &pi->comps[pi->compno];
+               res = &comp->resolutions[pi->resno];
+               goto LABEL_SKIP;
+       } else {
+               pi->first = 0;
+       }
+
+       for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
+               for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
+               pi->resno++) {
+                       for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
+                               comp = &pi->comps[pi->compno];
+                               if (pi->resno >= comp->numresolutions) {
+                                       continue;
+                               }
+                               res = &comp->resolutions[pi->resno];
+                               if (!pi->tp_on){
+                                       pi->poc.precno1 = res->pw * res->ph;
+                               }
+                               for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
+                                       index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
+                                       if (!pi->include[index]) {
+                                               pi->include[index] = 1;
+                                               return OPJ_TRUE;
+                                       }
 LABEL_SKIP:;
-        }
-      }
-    }
-  }
-  
-  return false;
+                               }
+                       }
+               }
+       }
+       
+       return OPJ_FALSE;
 }
 
-static bool pi_next_rlcp(opj_pi_iterator_t * pi) {
-  opj_pi_comp_t *comp = NULL;
-  opj_pi_resolution_t *res = NULL;
-  long index = 0;
-
-  if (!pi->first) {
-    comp = &pi->comps[pi->compno];
-    res = &comp->resolutions[pi->resno];
-    goto LABEL_SKIP;
-  } else {
-    pi->first = 0;
-  }
-
-  for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
-    for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
-      for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
-        comp = &pi->comps[pi->compno];
-        if (pi->resno >= comp->numresolutions) {
-          continue;
-        }
-        res = &comp->resolutions[pi->resno];
-        for (pi->precno = 0; pi->precno < res->pw * res->ph; pi->precno++) {
-          index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
-          if (!pi->include[index]) {
-            pi->include[index] = 1;
-            return true;
-          }
+static opj_bool pi_next_rlcp(opj_pi_iterator_t * pi) {
+       opj_pi_comp_t *comp = NULL;
+       opj_pi_resolution_t *res = NULL;
+       long index = 0;
+
+       if (!pi->first) {
+               comp = &pi->comps[pi->compno];
+               res = &comp->resolutions[pi->resno];
+               goto LABEL_SKIP;
+       } else {
+               pi->first = 0;
+       }
+
+       for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
+               for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
+                       for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
+                               comp = &pi->comps[pi->compno];
+                               if (pi->resno >= comp->numresolutions) {
+                                       continue;
+                               }
+                               res = &comp->resolutions[pi->resno];
+                               if(!pi->tp_on){
+                                       pi->poc.precno1 = res->pw * res->ph;
+                               }
+                               for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
+                                       index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
+                                       if (!pi->include[index]) {
+                                               pi->include[index] = 1;
+                                               return OPJ_TRUE;
+                                       }
 LABEL_SKIP:;
-        }
-      }
-    }
-  }
-  
-  return false;
+                               }
+                       }
+               }
+       }
+       
+       return OPJ_FALSE;
 }
 
-static bool pi_next_rpcl(opj_pi_iterator_t * pi) {
-  opj_pi_comp_t *comp = NULL;
-  opj_pi_resolution_t *res = NULL;
-  long index = 0;
-
-  if (!pi->first) {
-    goto LABEL_SKIP;
-  } else {
-    int compno, resno;
-    pi->first = 0;
-    pi->dx = 0;
-    pi->dy = 0;
-    for (compno = 0; compno < pi->numcomps; compno++) {
-      comp = &pi->comps[compno];
-      for (resno = 0; resno < comp->numresolutions; resno++) {
-        int dx, dy;
-        res = &comp->resolutions[resno];
-        dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
-        dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
-        pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
-        pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
-      }
-    }
-  }
-
-  for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
-    for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
-      for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
-        for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
-          int levelno;
-          int trx0, try0;
-          int trx1, try1;
-          int rpx, rpy;
-          int prci, prcj;
-          comp = &pi->comps[pi->compno];
-          if (pi->resno >= comp->numresolutions) {
-            continue;
-          }
-          res = &comp->resolutions[pi->resno];
-          levelno = comp->numresolutions - 1 - pi->resno;
-          trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
-          try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
-          trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
-          try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
-          rpx = res->pdx + levelno;
-          rpy = res->pdy + levelno;
-          if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelno) % (1 << rpx)))) {
-            continue;
-          }
-          if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelno) % (1 << rpx)))) {
-            continue;
-          }
-          
-          if ((res->pw==0)||(res->pw==0)) continue;
-          
-          if ((trx0==trx1)||(try0==try1)) continue;
-          
-          prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx) 
-             - int_floordivpow2(trx0, res->pdx);
-          prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy) 
-             - int_floordivpow2(try0, res->pdy);
-          pi->precno = prci + prcj * res->pw;
-          for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
-            index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
-            if (!pi->include[index]) {
-              pi->include[index] = 1;
-              return true;
-            }
+static opj_bool pi_next_rpcl(opj_pi_iterator_t * pi) {
+       opj_pi_comp_t *comp = NULL;
+       opj_pi_resolution_t *res = NULL;
+       long index = 0;
+
+       if (!pi->first) {
+               goto LABEL_SKIP;
+       } else {
+               int compno, resno;
+               pi->first = 0;
+               pi->dx = 0;
+               pi->dy = 0;
+               for (compno = 0; compno < pi->numcomps; compno++) {
+                       comp = &pi->comps[compno];
+                       for (resno = 0; resno < comp->numresolutions; resno++) {
+                               int dx, dy;
+                               res = &comp->resolutions[resno];
+                               dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
+                               dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
+                               pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
+                               pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
+                       }
+               }
+       }
+if (!pi->tp_on){
+                       pi->poc.ty0 = pi->ty0;
+                       pi->poc.tx0 = pi->tx0;
+                       pi->poc.ty1 = pi->ty1;
+                       pi->poc.tx1 = pi->tx1;
+               }
+       for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
+               for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
+                       for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
+                               for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
+                                       int levelno;
+                                       int trx0, try0;
+                                       int trx1, try1;
+                                       int rpx, rpy;
+                                       int prci, prcj;
+                                       comp = &pi->comps[pi->compno];
+                                       if (pi->resno >= comp->numresolutions) {
+                                               continue;
+                                       }
+                                       res = &comp->resolutions[pi->resno];
+                                       levelno = comp->numresolutions - 1 - pi->resno;
+                                       trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
+                                       try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
+                                       trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
+                                       try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
+                                       rpx = res->pdx + levelno;
+                                       rpy = res->pdy + levelno;
+                                       if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
+                                               continue;       
+                                       }
+                                       if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
+                                               continue;
+                                       }
+                                       
+                                       if ((res->pw==0)||(res->ph==0)) continue;
+                                       
+                                       if ((trx0==trx1)||(try0==try1)) continue;
+                                       
+                                       prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
+                                                - int_floordivpow2(trx0, res->pdx);
+                                       prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
+                                                - int_floordivpow2(try0, res->pdy);
+                                       pi->precno = prci + prcj * res->pw;
+                                       for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
+                                               index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
+                                               if (!pi->include[index]) {
+                                                       pi->include[index] = 1;
+                                                       return OPJ_TRUE;
+                                               }
 LABEL_SKIP:;
-          }
-        }
-      }
-    }
-  }
-  
-  return false;
+                                       }
+                               }
+                       }
+               }
+       }
+       
+       return OPJ_FALSE;
 }
 
-static bool pi_next_pcrl(opj_pi_iterator_t * pi) {
-  opj_pi_comp_t *comp = NULL;
-  opj_pi_resolution_t *res = NULL;
-  long index = 0;
-
-  if (!pi->first) {
-    comp = &pi->comps[pi->compno];
-    goto LABEL_SKIP;
-  } else {
-    int compno, resno;
-    pi->first = 0;
-    pi->dx = 0;
-    pi->dy = 0;
-    for (compno = 0; compno < pi->numcomps; compno++) {
-      comp = &pi->comps[compno];
-      for (resno = 0; resno < comp->numresolutions; resno++) {
-        int dx, dy;
-        res = &comp->resolutions[resno];
-        dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
-        dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
-        pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
-        pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
-      }
-    }
-  }
-
-  for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
-    for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
-      for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
-        comp = &pi->comps[pi->compno];
-        for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
-          int levelno;
-          int trx0, try0;
-          int trx1, try1;
-          int rpx, rpy;
-          int prci, prcj;
-          res = &comp->resolutions[pi->resno];
-          levelno = comp->numresolutions - 1 - pi->resno;
-          trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
-          try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
-          trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
-          try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
-          rpx = res->pdx + levelno;
-          rpy = res->pdy + levelno;
-          if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelno) % (1 << rpx)))) {
-            continue;
-          }
-          if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelno) % (1 << rpx)))) {
-            continue;
-          }
-          
-          if ((res->pw==0)||(res->pw==0)) continue;
-          
-          if ((trx0==trx1)||(try0==try1)) continue;
-          
-          prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx) 
-             - int_floordivpow2(trx0, res->pdx);
-          prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy) 
-             - int_floordivpow2(try0, res->pdy);
-          pi->precno = prci + prcj * res->pw;
-          for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
-            index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
-            if (!pi->include[index]) {
-              pi->include[index] = 1;
-              return true;
-            } 
+static opj_bool pi_next_pcrl(opj_pi_iterator_t * pi) {
+       opj_pi_comp_t *comp = NULL;
+       opj_pi_resolution_t *res = NULL;
+       long index = 0;
+
+       if (!pi->first) {
+               comp = &pi->comps[pi->compno];
+               goto LABEL_SKIP;
+       } else {
+               int compno, resno;
+               pi->first = 0;
+               pi->dx = 0;
+               pi->dy = 0;
+               for (compno = 0; compno < pi->numcomps; compno++) {
+                       comp = &pi->comps[compno];
+                       for (resno = 0; resno < comp->numresolutions; resno++) {
+                               int dx, dy;
+                               res = &comp->resolutions[resno];
+                               dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
+                               dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
+                               pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
+                               pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
+                       }
+               }
+       }
+       if (!pi->tp_on){
+                       pi->poc.ty0 = pi->ty0;
+                       pi->poc.tx0 = pi->tx0;
+                       pi->poc.ty1 = pi->ty1;
+                       pi->poc.tx1 = pi->tx1;
+               }
+       for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
+               for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
+                       for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
+                               comp = &pi->comps[pi->compno];
+                               for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
+                                       int levelno;
+                                       int trx0, try0;
+                                       int trx1, try1;
+                                       int rpx, rpy;
+                                       int prci, prcj;
+                                       res = &comp->resolutions[pi->resno];
+                                       levelno = comp->numresolutions - 1 - pi->resno;
+                                       trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
+                                       try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
+                                       trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
+                                       try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
+                                       rpx = res->pdx + levelno;
+                                       rpy = res->pdy + levelno;
+                                       if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
+                                               continue;       
+                                       }
+                                       if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
+                                               continue;
+                                       }
+                                       
+                                       if ((res->pw==0)||(res->ph==0)) continue;
+                                       
+                                       if ((trx0==trx1)||(try0==try1)) continue;
+                                       
+                                       prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
+                                                - int_floordivpow2(trx0, res->pdx);
+                                       prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
+                                                - int_floordivpow2(try0, res->pdy);
+                                       pi->precno = prci + prcj * res->pw;
+                                       for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
+                                               index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
+                                               if (!pi->include[index]) {
+                                                       pi->include[index] = 1;
+                                                       return OPJ_TRUE;
+                                               }       
 LABEL_SKIP:;
-          }
-        }
-      }
-    }
-  }
-  
-  return false;
+                                       }
+                               }
+                       }
+               }
+       }
+       
+       return OPJ_FALSE;
 }
 
-static bool pi_next_cprl(opj_pi_iterator_t * pi) {
-  opj_pi_comp_t *comp = NULL;
-  opj_pi_resolution_t *res = NULL;
-  long index = 0;
-
-  if (!pi->first) {
-    comp = &pi->comps[pi->compno];
-    goto LABEL_SKIP;
-  } else {
-    pi->first = 0;
-  }
-
-  for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
-    int resno;
-    comp = &pi->comps[pi->compno];
-    pi->dx = 0;
-    pi->dy = 0;
-    for (resno = 0; resno < comp->numresolutions; resno++) {
-      int dx, dy;
-      res = &comp->resolutions[resno];
-      dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
-      dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
-      pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
-      pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
-    }
-    for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
-      for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
-        for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
-          int levelno;
-          int trx0, try0;
-          int trx1, try1;
-          int rpx, rpy;
-          int prci, prcj;
-          res = &comp->resolutions[pi->resno];
-          levelno = comp->numresolutions - 1 - pi->resno;
-          trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
-          try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
-          trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
-          try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
-          rpx = res->pdx + levelno;
-          rpy = res->pdy + levelno;
-          if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelno) % (1 << rpx)))) {
-            continue;
-          }
-          if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelno) % (1 << rpx)))) {
-            continue;
-          }
-          
-          if ((res->pw==0)||(res->pw==0)) continue;
-          
-          if ((trx0==trx1)||(try0==try1)) continue;
-          
-          prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx) 
-             - int_floordivpow2(trx0, res->pdx);
-          prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy) 
-             - int_floordivpow2(try0, res->pdy);
-          pi->precno = prci + prcj * res->pw;
-          for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
-            index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
-            if (!pi->include[index]) {
-              pi->include[index] = 1;
-              return true;
-            }
+static opj_bool pi_next_cprl(opj_pi_iterator_t * pi) {
+       opj_pi_comp_t *comp = NULL;
+       opj_pi_resolution_t *res = NULL;
+       long index = 0;
+
+       if (!pi->first) {
+               comp = &pi->comps[pi->compno];
+               goto LABEL_SKIP;
+       } else {
+               pi->first = 0;
+       }
+
+       for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
+               int resno;
+               comp = &pi->comps[pi->compno];
+               pi->dx = 0;
+               pi->dy = 0;
+               for (resno = 0; resno < comp->numresolutions; resno++) {
+                       int dx, dy;
+                       res = &comp->resolutions[resno];
+                       dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
+                       dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
+                       pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
+                       pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
+               }
+               if (!pi->tp_on){
+                       pi->poc.ty0 = pi->ty0;
+                       pi->poc.tx0 = pi->tx0;
+                       pi->poc.ty1 = pi->ty1;
+                       pi->poc.tx1 = pi->tx1;
+               }
+               for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
+                       for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
+                               for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
+                                       int levelno;
+                                       int trx0, try0;
+                                       int trx1, try1;
+                                       int rpx, rpy;
+                                       int prci, prcj;
+                                       res = &comp->resolutions[pi->resno];
+                                       levelno = comp->numresolutions - 1 - pi->resno;
+                                       trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
+                                       try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
+                                       trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
+                                       try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
+                                       rpx = res->pdx + levelno;
+                                       rpy = res->pdy + levelno;
+                                       if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
+                                               continue;       
+                                       }
+                                       if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
+                                               continue;
+                                       }
+                                       
+                                       if ((res->pw==0)||(res->ph==0)) continue;
+                                       
+                                       if ((trx0==trx1)||(try0==try1)) continue;
+                                       
+                                       prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
+                                                - int_floordivpow2(trx0, res->pdx);
+                                       prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
+                                                - int_floordivpow2(try0, res->pdy);
+                                       pi->precno = prci + prcj * res->pw;
+                                       for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
+                                               index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
+                                               if (!pi->include[index]) {
+                                                       pi->include[index] = 1;
+                                                       return OPJ_TRUE;
+                                               }
 LABEL_SKIP:;
-          }
-        }
-      }
-    }
-  }
-  
-  return false;
+                                       }
+                               }
+                       }
+               }
+       }
+       
+       return OPJ_FALSE;
 }
 
-/* 
+/*
 ==========================================================
    Packet iterator interface
 ==========================================================
 */
 
-opj_pi_iterator_t *pi_create(opj_image_t *image, opj_cp_t *cp, int tileno) {
-  int p, q;
-  int compno, resno, pino;
-  int maxres = 0;
-  opj_pi_iterator_t *pi = NULL;
-  opj_tcp_t *tcp = NULL;
-  opj_tccp_t *tccp = NULL;
-  size_t array_size;
-  
-  tcp = &cp->tcps[tileno];
-
-  array_size = (tcp->numpocs + 1) * sizeof(opj_pi_iterator_t);
-  pi = (opj_pi_iterator_t *) opj_malloc(array_size);
-  if(!pi) {
-    /* TODO: throw an error */
-    return NULL;
-  }
-  
-  for (pino = 0; pino < tcp->numpocs + 1; pino++) { /* change */
-    p = tileno % cp->tw;
-    q = tileno / cp->tw;
-
-    pi[pino].tx0 = int_max(cp->tx0 + p * cp->tdx, image->x0);
-    pi[pino].ty0 = int_max(cp->ty0 + q * cp->tdy, image->y0);
-    pi[pino].tx1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1);
-    pi[pino].ty1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1);
-    pi[pino].numcomps = image->numcomps;
-
-    array_size = image->numcomps * sizeof(opj_pi_comp_t);
-    pi[pino].comps = (opj_pi_comp_t *) opj_malloc(array_size);
-    if(!pi[pino].comps) {
-      /* TODO: throw an error */
-      pi_destroy(pi, cp, tileno);
-      return NULL;
-    }
-    memset(pi[pino].comps, 0, array_size);
-    
-    for (compno = 0; compno < pi->numcomps; compno++) {
-      int tcx0, tcy0, tcx1, tcy1;
-      opj_pi_comp_t *comp = &pi[pino].comps[compno];
-      tccp = &tcp->tccps[compno];
-      comp->dx = image->comps[compno].dx;
-      comp->dy = image->comps[compno].dy;
-      comp->numresolutions = tccp->numresolutions;
-
-      array_size = comp->numresolutions * sizeof(opj_pi_resolution_t);
-      comp->resolutions = (opj_pi_resolution_t *) opj_malloc(array_size);
-      if(!comp->resolutions) {
-        /* TODO: throw an error */
-        pi_destroy(pi, cp, tileno);
-        return NULL;
-      }
-
-      tcx0 = int_ceildiv(pi->tx0, comp->dx);
-      tcy0 = int_ceildiv(pi->ty0, comp->dy);
-      tcx1 = int_ceildiv(pi->tx1, comp->dx);
-      tcy1 = int_ceildiv(pi->ty1, comp->dy);
-      if (comp->numresolutions > maxres) {
-        maxres = comp->numresolutions;
-      }
-
-      for (resno = 0; resno < comp->numresolutions; resno++) {
-        int levelno;
-        int rx0, ry0, rx1, ry1;
-        int px0, py0, px1, py1;
-        opj_pi_resolution_t *res = &comp->resolutions[resno];
-        if (tccp->csty & J2K_CCP_CSTY_PRT) {
-          res->pdx = tccp->prcw[resno];
-          res->pdy = tccp->prch[resno];
-        } else {
-          res->pdx = 15;
-          res->pdy = 15;
-        }
-        levelno = comp->numresolutions - 1 - resno;
-        rx0 = int_ceildivpow2(tcx0, levelno);
-        ry0 = int_ceildivpow2(tcy0, levelno);
-        rx1 = int_ceildivpow2(tcx1, levelno);
-        ry1 = int_ceildivpow2(tcy1, levelno);
-        px0 = int_floordivpow2(rx0, res->pdx) << res->pdx;
-        py0 = int_floordivpow2(ry0, res->pdy) << res->pdy;
-        px1 = int_ceildivpow2(rx1, res->pdx) << res->pdx;
-        py1 = int_ceildivpow2(ry1, res->pdy) << res->pdy;
-        res->pw = (rx0==rx1)?0:((px1 - px0) >> res->pdx);
-        res->ph = (ry0==ry1)?0:((py1 - py0) >> res->pdy);
-      }
-    }
-    
-    tccp = &tcp->tccps[0];
-    pi[pino].step_p = 1;
-    pi[pino].step_c = 100 * pi[pino].step_p;
-    pi[pino].step_r = image->numcomps * pi[pino].step_c;
-    pi[pino].step_l = maxres * pi[pino].step_r;
-    
-    if (pino == 0) {
-      array_size = image->numcomps * maxres * tcp->numlayers * 100 * sizeof(short int);
-      pi[pino].include = (short int *) opj_malloc(array_size);
-      if(!pi[pino].include) {
-        /* TODO: throw an error */
-        pi_destroy(pi, cp, tileno);
-        return NULL;
-      }
-    }
-    else {
-      pi[pino].include = pi[pino - 1].include;
-    }
-    
-    if (tcp->POC == 0) {
-      pi[pino].first = 1;
-      pi[pino].poc.resno0 = 0;
-      pi[pino].poc.compno0 = 0;
-      pi[pino].poc.layno1 = tcp->numlayers;
-      pi[pino].poc.resno1 = maxres;
-      pi[pino].poc.compno1 = image->numcomps;
-      pi[pino].poc.prg = tcp->prg;
-    } else {
-      pi[pino].first = 1;
-      pi[pino].poc.resno0 = tcp->pocs[pino].resno0;
-      pi[pino].poc.compno0 = tcp->pocs[pino].compno0;
-      pi[pino].poc.layno1 = tcp->pocs[pino].layno1;
-      pi[pino].poc.resno1 = tcp->pocs[pino].resno1;
-      pi[pino].poc.compno1 = tcp->pocs[pino].compno1;
-      pi[pino].poc.prg = tcp->pocs[pino].prg;
-    }
-  }
-  
-  return pi;
+opj_pi_iterator_t *pi_create_decode(opj_image_t *image, opj_cp_t *cp, int tileno) {
+       int p, q;
+       int compno, resno, pino;
+       opj_pi_iterator_t *pi = NULL;
+       opj_tcp_t *tcp = NULL;
+       opj_tccp_t *tccp = NULL;
+
+       tcp = &cp->tcps[tileno];
+
+       pi = (opj_pi_iterator_t*) opj_calloc((tcp->numpocs + 1), sizeof(opj_pi_iterator_t));
+       if(!pi) {
+               /* TODO: throw an error */
+               return NULL;
+       }
+
+       for (pino = 0; pino < tcp->numpocs + 1; pino++) {       /* change */
+               int maxres = 0;
+               int maxprec = 0;
+               p = tileno % cp->tw;
+               q = tileno / cp->tw;
+
+               pi[pino].tx0 = int_max(cp->tx0 + p * cp->tdx, image->x0);
+               pi[pino].ty0 = int_max(cp->ty0 + q * cp->tdy, image->y0);
+               pi[pino].tx1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1);
+               pi[pino].ty1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1);
+               pi[pino].numcomps = image->numcomps;
+
+               pi[pino].comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
+               if(!pi[pino].comps) {
+                       /* TODO: throw an error */
+                       pi_destroy(pi, cp, tileno);
+                       return NULL;
+               }
+               
+               for (compno = 0; compno < pi->numcomps; compno++) {
+                       int tcx0, tcy0, tcx1, tcy1;
+                       opj_pi_comp_t *comp = &pi[pino].comps[compno];
+                       tccp = &tcp->tccps[compno];
+                       comp->dx = image->comps[compno].dx;
+                       comp->dy = image->comps[compno].dy;
+                       comp->numresolutions = tccp->numresolutions;
+
+                       comp->resolutions = (opj_pi_resolution_t*) opj_calloc(comp->numresolutions, sizeof(opj_pi_resolution_t));
+                       if(!comp->resolutions) {
+                               /* TODO: throw an error */
+                               pi_destroy(pi, cp, tileno);
+                               return NULL;
+                       }
+
+                       tcx0 = int_ceildiv(pi->tx0, comp->dx);
+                       tcy0 = int_ceildiv(pi->ty0, comp->dy);
+                       tcx1 = int_ceildiv(pi->tx1, comp->dx);
+                       tcy1 = int_ceildiv(pi->ty1, comp->dy);
+                       if (comp->numresolutions > maxres) {
+                               maxres = comp->numresolutions;
+                       }
+
+                       for (resno = 0; resno < comp->numresolutions; resno++) {
+                               int levelno;
+                               int rx0, ry0, rx1, ry1;
+                               int px0, py0, px1, py1;
+                               opj_pi_resolution_t *res = &comp->resolutions[resno];
+                               if (tccp->csty & J2K_CCP_CSTY_PRT) {
+                                       res->pdx = tccp->prcw[resno];
+                                       res->pdy = tccp->prch[resno];
+                               } else {
+                                       res->pdx = 15;
+                                       res->pdy = 15;
+                               }
+                               levelno = comp->numresolutions - 1 - resno;
+                               rx0 = int_ceildivpow2(tcx0, levelno);
+                               ry0 = int_ceildivpow2(tcy0, levelno);
+                               rx1 = int_ceildivpow2(tcx1, levelno);
+                               ry1 = int_ceildivpow2(tcy1, levelno);
+                               px0 = int_floordivpow2(rx0, res->pdx) << res->pdx;
+                               py0 = int_floordivpow2(ry0, res->pdy) << res->pdy;
+                               px1 = int_ceildivpow2(rx1, res->pdx) << res->pdx;
+                               py1 = int_ceildivpow2(ry1, res->pdy) << res->pdy;
+                               res->pw = (rx0==rx1)?0:((px1 - px0) >> res->pdx);
+                               res->ph = (ry0==ry1)?0:((py1 - py0) >> res->pdy);
+                               
+                               if (res->pw*res->ph > maxprec) {
+                                       maxprec = res->pw*res->ph;
+                               }
+                               
+                       }
+               }
+               
+               tccp = &tcp->tccps[0];
+               pi[pino].step_p = 1;
+               pi[pino].step_c = maxprec * pi[pino].step_p;
+               pi[pino].step_r = image->numcomps * pi[pino].step_c;
+               pi[pino].step_l = maxres * pi[pino].step_r;
+               
+               if (pino == 0) {
+                       pi[pino].include = (short int*) opj_calloc(image->numcomps * maxres * tcp->numlayers * maxprec, sizeof(short int));
+                       if(!pi[pino].include) {
+                               /* TODO: throw an error */
+                               pi_destroy(pi, cp, tileno);
+                               return NULL;
+                       }
+               }
+               else {
+                       pi[pino].include = pi[pino - 1].include;
+               }
+               
+               if (tcp->POC == 0) {
+                       pi[pino].first = 1;
+                       pi[pino].poc.resno0 = 0;
+                       pi[pino].poc.compno0 = 0;
+                       pi[pino].poc.layno1 = tcp->numlayers;
+                       pi[pino].poc.resno1 = maxres;
+                       pi[pino].poc.compno1 = image->numcomps;
+                       pi[pino].poc.prg = tcp->prg;
+               } else {
+                       pi[pino].first = 1;
+                       pi[pino].poc.resno0 = tcp->pocs[pino].resno0;
+                       pi[pino].poc.compno0 = tcp->pocs[pino].compno0;
+                       pi[pino].poc.layno1 = tcp->pocs[pino].layno1;
+                       pi[pino].poc.resno1 = tcp->pocs[pino].resno1;
+                       pi[pino].poc.compno1 = tcp->pocs[pino].compno1;
+                       pi[pino].poc.prg = tcp->pocs[pino].prg;
+               }
+               pi[pino].poc.layno0  = 0;
+               pi[pino].poc.precno0 = 0;
+               pi[pino].poc.precno1 = maxprec;
+                       
+       }
+       
+       return pi;
+}
+
+opj_pi_iterator_t *pi_create_decode_v2(        opj_image_t *p_image,
+                                                                               opj_cp_v2_t *p_cp,
+                                                                               OPJ_UINT32 p_tile_no
+                                                                               )
+{
+       /* loop */
+       OPJ_UINT32 pino;
+       OPJ_UINT32 compno, resno;
+
+       /* to store w, h, dx and dy fro all components and resolutions */
+       OPJ_UINT32 * l_tmp_data;
+       OPJ_UINT32 ** l_tmp_ptr;
+
+       /* encoding prameters to set */
+       OPJ_UINT32 l_max_res;
+       OPJ_UINT32 l_max_prec;
+       OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
+       OPJ_UINT32 l_dx_min,l_dy_min;
+       OPJ_UINT32 l_bound;
+       OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
+       OPJ_UINT32 l_data_stride;
+
+       /* pointers */
+       opj_pi_iterator_t *l_pi = 00;
+       opj_tcp_v2_t *l_tcp = 00;
+       const opj_tccp_t *l_tccp = 00;
+       opj_pi_comp_t *l_current_comp = 00;
+       opj_image_comp_t * l_img_comp = 00;
+       opj_pi_iterator_t * l_current_pi = 00;
+       OPJ_UINT32 * l_encoding_value_ptr = 00;
+
+       /* preconditions in debug */
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(p_tile_no < p_cp->tw * p_cp->th);
+
+       /* initializations */
+       l_tcp = &p_cp->tcps[p_tile_no];
+       l_bound = l_tcp->numpocs+1;
+
+       l_data_stride = 4 * J2K_MAXRLVLS;
+       l_tmp_data = (OPJ_UINT32*)opj_malloc(
+               l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
+       if
+               (! l_tmp_data)
+       {
+               return 00;
+       }
+       l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
+               p_image->numcomps * sizeof(OPJ_UINT32 *));
+       if
+               (! l_tmp_ptr)
+       {
+               opj_free(l_tmp_data);
+               return 00;
+       }
+
+       /* memory allocation for pi */
+       l_pi = pi_create(p_image, p_cp, p_tile_no);
+       if (!l_pi) {
+               opj_free(l_tmp_data);
+               opj_free(l_tmp_ptr);
+               return 00;
+       }
+
+       l_encoding_value_ptr = l_tmp_data;
+       /* update pointer array */
+       for
+               (compno = 0; compno < p_image->numcomps; ++compno)
+       {
+               l_tmp_ptr[compno] = l_encoding_value_ptr;
+               l_encoding_value_ptr += l_data_stride;
+       }
+       /* get encoding parameters */
+       get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
+
+       /* step calculations */
+       l_step_p = 1;
+       l_step_c = l_max_prec * l_step_p;
+       l_step_r = p_image->numcomps * l_step_c;
+       l_step_l = l_max_res * l_step_r;
+
+       /* set values for first packet iterator */
+       l_current_pi = l_pi;
+
+       /* memory allocation for include */
+       l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
+       if
+               (!l_current_pi->include)
+       {
+               opj_free(l_tmp_data);
+               opj_free(l_tmp_ptr);
+               pi_destroy_v2(l_pi, l_bound);
+               return 00;
+       }
+       memset(l_current_pi->include,0, (l_tcp->numlayers + 1) * l_step_l* sizeof(OPJ_INT16));
+
+       /* special treatment for the first packet iterator */
+       l_current_comp = l_current_pi->comps;
+       l_img_comp = p_image->comps;
+       l_tccp = l_tcp->tccps;
+
+       l_current_pi->tx0 = l_tx0;
+       l_current_pi->ty0 = l_ty0;
+       l_current_pi->tx1 = l_tx1;
+       l_current_pi->ty1 = l_ty1;
+
+       /*l_current_pi->dx = l_img_comp->dx;*/
+       /*l_current_pi->dy = l_img_comp->dy;*/
+
+       l_current_pi->step_p = l_step_p;
+       l_current_pi->step_c = l_step_c;
+       l_current_pi->step_r = l_step_r;
+       l_current_pi->step_l = l_step_l;
+
+       /* allocation for components and number of components has already been calculated by pi_create */
+       for
+               (compno = 0; compno < l_current_pi->numcomps; ++compno)
+       {
+               opj_pi_resolution_t *l_res = l_current_comp->resolutions;
+               l_encoding_value_ptr = l_tmp_ptr[compno];
+
+               l_current_comp->dx = l_img_comp->dx;
+               l_current_comp->dy = l_img_comp->dy;
+               /* resolutions have already been initialized */
+               for
+                       (resno = 0; resno < l_current_comp->numresolutions; resno++)
+               {
+                       l_res->pdx = *(l_encoding_value_ptr++);
+                       l_res->pdy = *(l_encoding_value_ptr++);
+                       l_res->pw =  *(l_encoding_value_ptr++);
+                       l_res->ph =  *(l_encoding_value_ptr++);
+                       ++l_res;
+               }
+               ++l_current_comp;
+               ++l_img_comp;
+               ++l_tccp;
+       }
+       ++l_current_pi;
+
+       for
+               (pino = 1 ; pino<l_bound ; ++pino )
+       {
+               opj_pi_comp_t *l_current_comp = l_current_pi->comps;
+               opj_image_comp_t * l_img_comp = p_image->comps;
+               l_tccp = l_tcp->tccps;
+
+               l_current_pi->tx0 = l_tx0;
+               l_current_pi->ty0 = l_ty0;
+               l_current_pi->tx1 = l_tx1;
+               l_current_pi->ty1 = l_ty1;
+               /*l_current_pi->dx = l_dx_min;*/
+               /*l_current_pi->dy = l_dy_min;*/
+               l_current_pi->step_p = l_step_p;
+               l_current_pi->step_c = l_step_c;
+               l_current_pi->step_r = l_step_r;
+               l_current_pi->step_l = l_step_l;
+
+               /* allocation for components and number of components has already been calculated by pi_create */
+               for
+                       (compno = 0; compno < l_current_pi->numcomps; ++compno)
+               {
+                       opj_pi_resolution_t *l_res = l_current_comp->resolutions;
+                       l_encoding_value_ptr = l_tmp_ptr[compno];
+
+                       l_current_comp->dx = l_img_comp->dx;
+                       l_current_comp->dy = l_img_comp->dy;
+                       /* resolutions have already been initialized */
+                       for
+                               (resno = 0; resno < l_current_comp->numresolutions; resno++)
+                       {
+                               l_res->pdx = *(l_encoding_value_ptr++);
+                               l_res->pdy = *(l_encoding_value_ptr++);
+                               l_res->pw =  *(l_encoding_value_ptr++);
+                               l_res->ph =  *(l_encoding_value_ptr++);
+                               ++l_res;
+                       }
+                       ++l_current_comp;
+                       ++l_img_comp;
+                       ++l_tccp;
+               }
+               /* special treatment*/
+               l_current_pi->include = (l_current_pi-1)->include;
+               ++l_current_pi;
+       }
+       opj_free(l_tmp_data);
+       l_tmp_data = 00;
+       opj_free(l_tmp_ptr);
+       l_tmp_ptr = 00;
+       if
+               (l_tcp->POC)
+       {
+               pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
+       }
+       else
+       {
+               pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
+       }
+       return l_pi;
+}
+
+opj_pi_iterator_t *pi_initialise_encode(opj_image_t *image, opj_cp_t *cp, int tileno, J2K_T2_MODE t2_mode){
+       int p, q, pino;
+       int compno, resno;
+       int maxres = 0;
+       int maxprec = 0;
+       opj_pi_iterator_t *pi = NULL;
+       opj_tcp_t *tcp = NULL;
+       opj_tccp_t *tccp = NULL;
+       
+       tcp = &cp->tcps[tileno];
+
+       pi = (opj_pi_iterator_t*) opj_calloc((tcp->numpocs + 1), sizeof(opj_pi_iterator_t));
+       if(!pi) {       return NULL;}
+       pi->tp_on = cp->tp_on;
+
+       for(pino = 0;pino < tcp->numpocs+1 ; pino ++){
+               p = tileno % cp->tw;
+               q = tileno / cp->tw;
+
+               pi[pino].tx0 = int_max(cp->tx0 + p * cp->tdx, image->x0);
+               pi[pino].ty0 = int_max(cp->ty0 + q * cp->tdy, image->y0);
+               pi[pino].tx1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1);
+               pi[pino].ty1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1);
+               pi[pino].numcomps = image->numcomps;
+               
+               pi[pino].comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
+               if(!pi[pino].comps) {
+                       pi_destroy(pi, cp, tileno);
+                       return NULL;
+               }
+               
+               for (compno = 0; compno < pi[pino].numcomps; compno++) {
+                       int tcx0, tcy0, tcx1, tcy1;
+                       opj_pi_comp_t *comp = &pi[pino].comps[compno];
+                       tccp = &tcp->tccps[compno];
+                       comp->dx = image->comps[compno].dx;
+                       comp->dy = image->comps[compno].dy;
+                       comp->numresolutions = tccp->numresolutions;
+
+                       comp->resolutions = (opj_pi_resolution_t*) opj_malloc(comp->numresolutions * sizeof(opj_pi_resolution_t));
+                       if(!comp->resolutions) {
+                               pi_destroy(pi, cp, tileno);
+                               return NULL;
+                       }
+
+                       tcx0 = int_ceildiv(pi[pino].tx0, comp->dx);
+                       tcy0 = int_ceildiv(pi[pino].ty0, comp->dy);
+                       tcx1 = int_ceildiv(pi[pino].tx1, comp->dx);
+                       tcy1 = int_ceildiv(pi[pino].ty1, comp->dy);
+                       if (comp->numresolutions > maxres) {
+                               maxres = comp->numresolutions;
+                       }
+
+                       for (resno = 0; resno < comp->numresolutions; resno++) {
+                               int levelno;
+                               int rx0, ry0, rx1, ry1;
+                               int px0, py0, px1, py1;
+                               opj_pi_resolution_t *res = &comp->resolutions[resno];
+                               if (tccp->csty & J2K_CCP_CSTY_PRT) {
+                                       res->pdx = tccp->prcw[resno];
+                                       res->pdy = tccp->prch[resno];
+                               } else {
+                                       res->pdx = 15;
+                                       res->pdy = 15;
+                               }
+                               levelno = comp->numresolutions - 1 - resno;
+                               rx0 = int_ceildivpow2(tcx0, levelno);
+                               ry0 = int_ceildivpow2(tcy0, levelno);
+                               rx1 = int_ceildivpow2(tcx1, levelno);
+                               ry1 = int_ceildivpow2(tcy1, levelno);
+                               px0 = int_floordivpow2(rx0, res->pdx) << res->pdx;
+                               py0 = int_floordivpow2(ry0, res->pdy) << res->pdy;
+                               px1 = int_ceildivpow2(rx1, res->pdx) << res->pdx;
+                               py1 = int_ceildivpow2(ry1, res->pdy) << res->pdy;
+                               res->pw = (rx0==rx1)?0:((px1 - px0) >> res->pdx);
+                               res->ph = (ry0==ry1)?0:((py1 - py0) >> res->pdy);
+
+                               if (res->pw*res->ph > maxprec) {
+                                       maxprec = res->pw * res->ph;
+                               }
+                       }
+               }
+               
+               tccp = &tcp->tccps[0];
+               pi[pino].step_p = 1;
+               pi[pino].step_c = maxprec * pi[pino].step_p;
+               pi[pino].step_r = image->numcomps * pi[pino].step_c;
+               pi[pino].step_l = maxres * pi[pino].step_r;
+               
+               for (compno = 0; compno < pi->numcomps; compno++) {
+                       opj_pi_comp_t *comp = &pi->comps[compno];
+                       for (resno = 0; resno < comp->numresolutions; resno++) {
+                               int dx, dy;
+                               opj_pi_resolution_t *res = &comp->resolutions[resno];
+                               dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
+                               dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
+                               pi[pino].dx = !pi->dx ? dx : int_min(pi->dx, dx);
+                               pi[pino].dy = !pi->dy ? dy : int_min(pi->dy, dy);
+                       }
+               }
+
+               if (pino == 0) {
+                       pi[pino].include = (short int*) opj_calloc(tcp->numlayers * pi[pino].step_l, sizeof(short int));
+                       if(!pi[pino].include) {
+                               pi_destroy(pi, cp, tileno);
+                               return NULL;
+                       }
+               }
+               else {
+                       pi[pino].include = pi[pino - 1].include;
+               }
+               
+               /* Generation of boundaries for each prog flag*/
+                       if(tcp->POC && ( cp->cinema || ((!cp->cinema) && (t2_mode == FINAL_PASS)))){
+                               tcp->pocs[pino].compS= tcp->pocs[pino].compno0;
+                               tcp->pocs[pino].compE= tcp->pocs[pino].compno1;
+                               tcp->pocs[pino].resS = tcp->pocs[pino].resno0;
+                               tcp->pocs[pino].resE = tcp->pocs[pino].resno1;
+                               tcp->pocs[pino].layE = tcp->pocs[pino].layno1;
+                               tcp->pocs[pino].prg  = tcp->pocs[pino].prg1;
+                               if (pino > 0)
+                                       tcp->pocs[pino].layS = (tcp->pocs[pino].layE > tcp->pocs[pino - 1].layE) ? tcp->pocs[pino - 1].layE : 0;
+                       }else {
+                               tcp->pocs[pino].compS= 0;
+                               tcp->pocs[pino].compE= image->numcomps;
+                               tcp->pocs[pino].resS = 0;
+                               tcp->pocs[pino].resE = maxres;
+                               tcp->pocs[pino].layS = 0;
+                               tcp->pocs[pino].layE = tcp->numlayers;
+                               tcp->pocs[pino].prg  = tcp->prg;
+                       }
+                       tcp->pocs[pino].prcS = 0;
+                       tcp->pocs[pino].prcE = maxprec;;
+                       tcp->pocs[pino].txS = pi[pino].tx0;
+                       tcp->pocs[pino].txE = pi[pino].tx1;
+                       tcp->pocs[pino].tyS = pi[pino].ty0;
+                       tcp->pocs[pino].tyE = pi[pino].ty1;
+                       tcp->pocs[pino].dx = pi[pino].dx;
+                       tcp->pocs[pino].dy = pi[pino].dy;
+               }
+                       return pi;
+       }
+
+opj_pi_iterator_t *pi_initialise_encode_v2(
+                                                                               const opj_image_t *p_image,
+                                                                               opj_cp_v2_t *p_cp,
+                                                                               OPJ_UINT32 p_tile_no,
+                                                                               J2K_T2_MODE p_t2_mode
+                                                                               )
+{
+       /* loop*/
+       OPJ_UINT32 pino;
+       OPJ_UINT32 compno, resno;
+
+       /* to store w, h, dx and dy fro all components and resolutions*/
+       OPJ_UINT32 * l_tmp_data;
+       OPJ_UINT32 ** l_tmp_ptr;
+
+       /* encoding prameters to set*/
+       OPJ_UINT32 l_max_res;
+       OPJ_UINT32 l_max_prec;
+       OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
+       OPJ_UINT32 l_dx_min,l_dy_min;
+       OPJ_UINT32 l_bound;
+       OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
+       OPJ_UINT32 l_data_stride;
+
+       /* pointers*/
+       opj_pi_iterator_t *l_pi = 00;
+       opj_tcp_v2_t *l_tcp = 00;
+       const opj_tccp_t *l_tccp = 00;
+       opj_pi_comp_t *l_current_comp = 00;
+       opj_image_comp_t * l_img_comp = 00;
+       opj_pi_iterator_t * l_current_pi = 00;
+       OPJ_UINT32 * l_encoding_value_ptr = 00;
+
+       /* preconditions in debug*/
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(p_tile_no < p_cp->tw * p_cp->th);
+
+       /* initializations*/
+       l_tcp = &p_cp->tcps[p_tile_no];
+       l_bound = l_tcp->numpocs+1;
+
+       l_data_stride = 4 * J2K_MAXRLVLS;
+       l_tmp_data = (OPJ_UINT32*)opj_malloc(
+               l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
+       if (! l_tmp_data) {
+               return 00;
+       }
+
+       l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
+               p_image->numcomps * sizeof(OPJ_UINT32 *));
+       if (! l_tmp_ptr) {
+               opj_free(l_tmp_data);
+               return 00;
+       }
+
+       /* memory allocation for pi*/
+       l_pi = pi_create(p_image,p_cp,p_tile_no);
+       if (!l_pi) {
+               opj_free(l_tmp_data);
+               opj_free(l_tmp_ptr);
+               return 00;
+       }
+
+       l_encoding_value_ptr = l_tmp_data;
+       /* update pointer array*/
+       for (compno = 0; compno < p_image->numcomps; ++compno) {
+               l_tmp_ptr[compno] = l_encoding_value_ptr;
+               l_encoding_value_ptr += l_data_stride;
+       }
+
+       /* get encoding parameters*/
+       get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
+
+       /* step calculations*/
+       l_step_p = 1;
+       l_step_c = l_max_prec * l_step_p;
+       l_step_r = p_image->numcomps * l_step_c;
+       l_step_l = l_max_res * l_step_r;
+
+       /* set values for first packet iterator*/
+       l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
+       l_current_pi = l_pi;
+
+       /* memory allocation for include*/
+       l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
+       if (!l_current_pi->include) {
+               opj_free(l_tmp_data);
+               opj_free(l_tmp_ptr);
+               pi_destroy_v2(l_pi, l_bound);
+               return 00;
+       }
+       memset(l_current_pi->include,0,l_tcp->numlayers * l_step_l* sizeof(OPJ_INT16));
+
+       /* special treatment for the first packet iterator*/
+       l_current_comp = l_current_pi->comps;
+       l_img_comp = p_image->comps;
+       l_tccp = l_tcp->tccps;
+       l_current_pi->tx0 = l_tx0;
+       l_current_pi->ty0 = l_ty0;
+       l_current_pi->tx1 = l_tx1;
+       l_current_pi->ty1 = l_ty1;
+       l_current_pi->dx = l_dx_min;
+       l_current_pi->dy = l_dy_min;
+       l_current_pi->step_p = l_step_p;
+       l_current_pi->step_c = l_step_c;
+       l_current_pi->step_r = l_step_r;
+       l_current_pi->step_l = l_step_l;
+
+       /* allocation for components and number of components has already been calculated by pi_create */
+       for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
+               opj_pi_resolution_t *l_res = l_current_comp->resolutions;
+               l_encoding_value_ptr = l_tmp_ptr[compno];
+
+               l_current_comp->dx = l_img_comp->dx;
+               l_current_comp->dy = l_img_comp->dy;
+
+               /* resolutions have already been initialized */
+               for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
+                       l_res->pdx = *(l_encoding_value_ptr++);
+                       l_res->pdy = *(l_encoding_value_ptr++);
+                       l_res->pw =  *(l_encoding_value_ptr++);
+                       l_res->ph =  *(l_encoding_value_ptr++);
+                       ++l_res;
+               }
+
+               ++l_current_comp;
+               ++l_img_comp;
+               ++l_tccp;
+       }
+       ++l_current_pi;
+
+       for (pino = 1 ; pino<l_bound ; ++pino ) {
+               opj_pi_comp_t *l_current_comp = l_current_pi->comps;
+               opj_image_comp_t * l_img_comp = p_image->comps;
+               l_tccp = l_tcp->tccps;
+
+               l_current_pi->tx0 = l_tx0;
+               l_current_pi->ty0 = l_ty0;
+               l_current_pi->tx1 = l_tx1;
+               l_current_pi->ty1 = l_ty1;
+               l_current_pi->dx = l_dx_min;
+               l_current_pi->dy = l_dy_min;
+               l_current_pi->step_p = l_step_p;
+               l_current_pi->step_c = l_step_c;
+               l_current_pi->step_r = l_step_r;
+               l_current_pi->step_l = l_step_l;
+
+               /* allocation for components and number of components has already been calculated by pi_create */
+               for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
+                       opj_pi_resolution_t *l_res = l_current_comp->resolutions;
+                       l_encoding_value_ptr = l_tmp_ptr[compno];
+
+                       l_current_comp->dx = l_img_comp->dx;
+                       l_current_comp->dy = l_img_comp->dy;
+                       /* resolutions have already been initialized */
+                       for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
+                               l_res->pdx = *(l_encoding_value_ptr++);
+                               l_res->pdy = *(l_encoding_value_ptr++);
+                               l_res->pw =  *(l_encoding_value_ptr++);
+                               l_res->ph =  *(l_encoding_value_ptr++);
+                               ++l_res;
+                       }
+                       ++l_current_comp;
+                       ++l_img_comp;
+                       ++l_tccp;
+               }
+
+               /* special treatment*/
+               l_current_pi->include = (l_current_pi-1)->include;
+               ++l_current_pi;
+       }
+
+       opj_free(l_tmp_data);
+       l_tmp_data = 00;
+       opj_free(l_tmp_ptr);
+       l_tmp_ptr = 00;
+
+       if (l_tcp->POC && ( p_cp->m_specific_param.m_enc.m_cinema || p_t2_mode == FINAL_PASS)) {
+               pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
+       }
+       else {
+               pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
+       }
+
+       return l_pi;
 }
 
 void pi_destroy(opj_pi_iterator_t *pi, opj_cp_t *cp, int tileno) {
-  int compno, pino;
-  opj_tcp_t *tcp = &cp->tcps[tileno];
-  if(pi) {
-    for (pino = 0; pino < tcp->numpocs + 1; pino++) { 
-      if(pi[pino].comps) {
-        for (compno = 0; compno < pi->numcomps; compno++) {
-          opj_pi_comp_t *comp = &pi[pino].comps[compno];
-          if(comp->resolutions) {
-            opj_free(comp->resolutions);
-          }
-        }
-        opj_free(pi[pino].comps);
-      }
-    }
-    if(pi->include) {
-      opj_free(pi->include);
-    }
-    opj_free(pi);
-  }
+       int compno, pino;
+       opj_tcp_t *tcp = &cp->tcps[tileno];
+       if(pi) {
+               for (pino = 0; pino < tcp->numpocs + 1; pino++) {       
+                       if(pi[pino].comps) {
+                               for (compno = 0; compno < pi->numcomps; compno++) {
+                                       opj_pi_comp_t *comp = &pi[pino].comps[compno];
+                                       if(comp->resolutions) {
+                                               opj_free(comp->resolutions);
+                                       }
+                               }
+                               opj_free(pi[pino].comps);
+                       }
+               }
+               if(pi->include) {
+                       opj_free(pi->include);
+               }
+               opj_free(pi);
+       }
+}
+
+opj_bool pi_next(opj_pi_iterator_t * pi) {
+       switch (pi->poc.prg) {
+               case LRCP:
+                       return pi_next_lrcp(pi);
+               case RLCP:
+                       return pi_next_rlcp(pi);
+               case RPCL:
+                       return pi_next_rpcl(pi);
+               case PCRL:
+                       return pi_next_pcrl(pi);
+               case CPRL:
+                       return pi_next_cprl(pi);
+               case PROG_UNKNOWN:
+                       return OPJ_FALSE;
+       }
+       
+       return OPJ_FALSE;
+}
+
+opj_bool pi_create_encode( opj_pi_iterator_t *pi, opj_cp_t *cp,int tileno, int pino,int tpnum, int tppos, J2K_T2_MODE t2_mode,int cur_totnum_tp){
+       char prog[4];
+       int i;
+       int incr_top=1,resetX=0;
+       opj_tcp_t *tcps =&cp->tcps[tileno];
+       opj_poc_t *tcp= &tcps->pocs[pino];
+
+       pi[pino].first = 1;
+       pi[pino].poc.prg = tcp->prg;
+
+       switch(tcp->prg){
+               case CPRL: strncpy(prog, "CPRL",4);
+                       break;
+               case LRCP: strncpy(prog, "LRCP",4);
+                       break;
+               case PCRL: strncpy(prog, "PCRL",4);
+                       break;
+               case RLCP: strncpy(prog, "RLCP",4);
+                       break;
+               case RPCL: strncpy(prog, "RPCL",4);
+                       break;
+               case PROG_UNKNOWN:
+                       return OPJ_TRUE;
+       }
+
+       if(!(cp->tp_on && ((!cp->cinema && (t2_mode == FINAL_PASS)) || cp->cinema))){
+               pi[pino].poc.resno0 = tcp->resS;
+               pi[pino].poc.resno1 = tcp->resE;
+               pi[pino].poc.compno0 = tcp->compS;
+               pi[pino].poc.compno1 = tcp->compE;
+               pi[pino].poc.layno0 = tcp->layS;
+               pi[pino].poc.layno1 = tcp->layE;
+               pi[pino].poc.precno0 = tcp->prcS;
+               pi[pino].poc.precno1 = tcp->prcE;
+               pi[pino].poc.tx0 = tcp->txS;
+               pi[pino].poc.ty0 = tcp->tyS;
+               pi[pino].poc.tx1 = tcp->txE;
+               pi[pino].poc.ty1 = tcp->tyE;
+       }else {
+               if( tpnum < cur_totnum_tp){
+                       for(i=3;i>=0;i--){
+                               switch(prog[i]){
+                               case 'C':
+                                       if (i > tppos){
+                                               pi[pino].poc.compno0 = tcp->compS;
+                                               pi[pino].poc.compno1 = tcp->compE;
+                                       }else{
+                                               if (tpnum == 0){
+                                                       tcp->comp_t = tcp->compS;
+                                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                       tcp->comp_t+=1;
+                                               }else{
+                                                       if (incr_top == 1){
+                                                               if(tcp->comp_t ==tcp->compE){
+                                                                       tcp->comp_t = tcp->compS;
+                                                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                                       tcp->comp_t+=1;
+                                                                       incr_top=1;
+                                                               }else{
+                                                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                                       tcp->comp_t+=1;
+                                                                       incr_top=0;
+                                                               }
+                                                       }else{
+                                                               pi[pino].poc.compno0 = tcp->comp_t-1;
+                                                               pi[pino].poc.compno1 = tcp->comp_t;
+                                                       }
+                                               }
+                                       }
+                                       break;
+
+                               case 'R':
+                                       if (i > tppos){
+                                               pi[pino].poc.resno0 = tcp->resS;
+                                               pi[pino].poc.resno1 = tcp->resE;
+                                       }else{
+                                               if (tpnum == 0){
+                                                       tcp->res_t = tcp->resS;
+                                                       pi[pino].poc.resno0 = tcp->res_t;
+                                                       pi[pino].poc.resno1 = tcp->res_t+1;
+                                                       tcp->res_t+=1;
+                                               }else{
+                                                       if (incr_top == 1){
+                                                               if(tcp->res_t==tcp->resE){
+                                                                       tcp->res_t = tcp->resS;
+                                                                       pi[pino].poc.resno0 = tcp->res_t;
+                                                                       pi[pino].poc.resno1 = tcp->res_t+1;
+                                                                       tcp->res_t+=1;
+                                                                       incr_top=1;
+                                                               }else{
+                                                                       pi[pino].poc.resno0 = tcp->res_t;
+                                                                       pi[pino].poc.resno1 = tcp->res_t+1;
+                                                                       tcp->res_t+=1;
+                                                                       incr_top=0;
+                                                               }
+                                                       }else{
+                                                               pi[pino].poc.resno0 = tcp->res_t - 1;
+                                                               pi[pino].poc.resno1 = tcp->res_t;
+                                                       }
+                                               }
+                                       }
+                                       break;
+
+                               case 'L':
+                                       if (i > tppos){
+                                               pi[pino].poc.layno0 = tcp->layS;
+                                               pi[pino].poc.layno1 = tcp->layE;
+                                       }else{
+                                               if (tpnum == 0){
+                                                       tcp->lay_t = tcp->layS;
+                                                       pi[pino].poc.layno0 = tcp->lay_t;
+                                                       pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                       tcp->lay_t+=1;
+                                               }else{
+                                                       if (incr_top == 1){
+                                                               if(tcp->lay_t == tcp->layE){
+                                                                       tcp->lay_t = tcp->layS;
+                                                                       pi[pino].poc.layno0 = tcp->lay_t;
+                                                                       pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                                       tcp->lay_t+=1;
+                                                                       incr_top=1;
+                                                               }else{
+                                                                       pi[pino].poc.layno0 = tcp->lay_t;
+                                                                       pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                                       tcp->lay_t+=1;
+                                                                       incr_top=0;
+                                                               }
+                                                       }else{
+                                                               pi[pino].poc.layno0 = tcp->lay_t - 1;
+                                                               pi[pino].poc.layno1 = tcp->lay_t;
+                                                       }
+                                               }
+                                       }
+                                       break;
+
+                               case 'P':
+                                       switch(tcp->prg){
+                                               case LRCP:
+                                               case RLCP:
+                                                       if (i > tppos){
+                                                               pi[pino].poc.precno0 = tcp->prcS;
+                                                               pi[pino].poc.precno1 = tcp->prcE;
+                                                       }else{
+                                                               if (tpnum == 0){
+                                                                       tcp->prc_t = tcp->prcS;
+                                                                       pi[pino].poc.precno0 = tcp->prc_t;
+                                                                       pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                                       tcp->prc_t+=1;
+                                                               }else{
+                                                                       if (incr_top == 1){
+                                                                               if(tcp->prc_t == tcp->prcE){
+                                                                                       tcp->prc_t = tcp->prcS;
+                                                                                       pi[pino].poc.precno0 = tcp->prc_t;
+                                                                                       pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                                                       tcp->prc_t+=1;
+                                                                                       incr_top=1;
+                                                                               }else{
+                                                                                       pi[pino].poc.precno0 = tcp->prc_t;
+                                                                                       pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                                                       tcp->prc_t+=1;
+                                                                                       incr_top=0;
+                                                                               }
+                                                                       }else{
+                                                                               pi[pino].poc.precno0 = tcp->prc_t - 1;
+                                                                               pi[pino].poc.precno1 = tcp->prc_t;
+                                                                       }
+                                                               }
+                                                       }
+                                               break;
+                                               default:
+                                                       if (i > tppos){
+                                                               pi[pino].poc.tx0 = tcp->txS;
+                                                               pi[pino].poc.ty0 = tcp->tyS;
+                                                               pi[pino].poc.tx1 = tcp->txE;
+                                                               pi[pino].poc.ty1 = tcp->tyE;
+                                                       }else{
+                                                               if (tpnum == 0){
+                                                                       tcp->tx0_t = tcp->txS;
+                                                                       tcp->ty0_t = tcp->tyS;
+                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
+                                                                       pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                       pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                       tcp->tx0_t = pi[pino].poc.tx1;
+                                                                       tcp->ty0_t = pi[pino].poc.ty1;
+                                                               }else{
+                                                                       if (incr_top == 1){
+                                                                               if(tcp->tx0_t >= tcp->txE){
+                                                                                       if(tcp->ty0_t >= tcp->tyE){
+                                                                                               tcp->ty0_t = tcp->tyS;
+                                                                                               pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                                               pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                                               tcp->ty0_t = pi[pino].poc.ty1;
+                                                                                               incr_top=1;resetX=1;
+                                                                                       }else{
+                                                                                               pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                                               pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                                               tcp->ty0_t = pi[pino].poc.ty1;
+                                                                                               incr_top=0;resetX=1;
+                                                                                       }
+                                                                                       if(resetX==1){
+                                                                                               tcp->tx0_t = tcp->txS;
+                                                                                               pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                                               pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
+                                                                                               tcp->tx0_t = pi[pino].poc.tx1;
+                                                                                       }
+                                                                               }else{
+                                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
+                                                                                       tcp->tx0_t = pi[pino].poc.tx1;
+                                                                                       pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                                       pi[pino].poc.ty1 = tcp->ty0_t ;
+                                                                                       incr_top=0;
+                                                                               }
+                                                                       }else{
+                                                                               pi[pino].poc.tx0 = tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx);
+                                                                               pi[pino].poc.tx1 = tcp->tx0_t ;
+                                                                               pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                               pi[pino].poc.ty1 = tcp->ty0_t ;
+                                                                       }
+                                                               }
+                                                       }
+                                               break;
+                                               }
+                                               break;
+                               }               
+                       }
+               }
+       }       
+       return OPJ_FALSE;
 }
 
-bool pi_next(opj_pi_iterator_t * pi) {
-  switch (pi->poc.prg) {
-    case LRCP:
-      return pi_next_lrcp(pi);
-    case RLCP:
-      return pi_next_rlcp(pi);
-    case RPCL:
-      return pi_next_rpcl(pi);
-    case PCRL:
-      return pi_next_pcrl(pi);
-    case CPRL:
-      return pi_next_cprl(pi);
-  }
-  
-  return false;
+void pi_update_encoding_parameters(    const opj_image_t *p_image,
+                                                                       opj_cp_v2_t *p_cp,
+                                                                       OPJ_UINT32 p_tile_no )
+{
+       /* encoding parameters to set */
+       OPJ_UINT32 l_max_res;
+       OPJ_UINT32 l_max_prec;
+       OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
+       OPJ_UINT32 l_dx_min,l_dy_min;
+
+       /* pointers */
+       opj_tcp_v2_t *l_tcp = 00;
+
+       /* preconditions */
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(p_tile_no < p_cp->tw * p_cp->th);
+
+       l_tcp = &(p_cp->tcps[p_tile_no]);
+
+       /* get encoding parameters */
+       get_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res);
+
+       if (l_tcp->POC) {
+               pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
+       }
+       else {
+               pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
+       }
+
 }
 
+void get_encoding_parameters(  const opj_image_t *p_image,
+                                                               const opj_cp_v2_t *p_cp,
+                                                               OPJ_UINT32 p_tileno,
+                                                               OPJ_INT32 * p_tx0,
+                                                               OPJ_INT32  * p_tx1,
+                                                               OPJ_INT32  * p_ty0,
+                                                               OPJ_INT32  * p_ty1,
+                                                               OPJ_UINT32 * p_dx_min,
+                                                               OPJ_UINT32 * p_dy_min,
+                                                               OPJ_UINT32 * p_max_prec,
+                                                               OPJ_UINT32 * p_max_res )
+{
+       /* loop */
+       OPJ_UINT32  compno, resno;
+       /* pointers */
+       const opj_tcp_v2_t *l_tcp = 00;
+       const opj_tccp_t * l_tccp = 00;
+       const opj_image_comp_t * l_img_comp = 00;
+
+       /* position in x and y of tile */
+       OPJ_UINT32 p, q;
+
+       /* preconditions */
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(p_tileno < p_cp->tw * p_cp->th);
+
+       /* initializations */
+       l_tcp = &p_cp->tcps [p_tileno];
+       l_img_comp = p_image->comps;
+       l_tccp = l_tcp->tccps;
+
+       /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
+       p = p_tileno % p_cp->tw;
+       q = p_tileno / p_cp->tw;
+
+       /* find extent of tile */
+       *p_tx0 = int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
+       *p_tx1 = int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
+       *p_ty0 = int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
+       *p_ty1 = int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
+
+       /* max precision is 0 (can only grow) */
+       *p_max_prec = 0;
+       *p_max_res = 0;
+
+       /* take the largest value for dx_min and dy_min */
+       *p_dx_min = 0x7fffffff;
+       *p_dy_min  = 0x7fffffff;
+
+       for (compno = 0; compno < p_image->numcomps; ++compno) {
+               /* arithmetic variables to calculate */
+               OPJ_UINT32 l_level_no;
+               OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
+               OPJ_INT32 l_px0, l_py0, l_px1, py1;
+               OPJ_UINT32 l_pdx, l_pdy;
+               OPJ_UINT32 l_pw, l_ph;
+               OPJ_UINT32 l_product;
+               OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
+
+               l_tcx0 = int_ceildiv(*p_tx0, l_img_comp->dx);
+               l_tcy0 = int_ceildiv(*p_ty0, l_img_comp->dy);
+               l_tcx1 = int_ceildiv(*p_tx1, l_img_comp->dx);
+               l_tcy1 = int_ceildiv(*p_ty1, l_img_comp->dy);
+
+               if (l_tccp->numresolutions > *p_max_res) {
+                       *p_max_res = l_tccp->numresolutions;
+               }
+
+               /* use custom size for precincts */
+               for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
+                       OPJ_UINT32 l_dx, l_dy;
+
+                       /* precinct width and height */
+                       l_pdx = l_tccp->prcw[resno];
+                       l_pdy = l_tccp->prch[resno];
+
+                       l_dx = l_img_comp->dx * (1 << (l_pdx + l_tccp->numresolutions - 1 - resno));
+                       l_dy = l_img_comp->dy * (1 << (l_pdy + l_tccp->numresolutions - 1 - resno));
+
+                       /* take the minimum size for dx for each comp and resolution */
+                       *p_dx_min = uint_min(*p_dx_min, l_dx);
+                       *p_dy_min = uint_min(*p_dy_min, l_dy);
+
+                       /* various calculations of extents */
+                       l_level_no = l_tccp->numresolutions - 1 - resno;
+
+                       l_rx0 = int_ceildivpow2(l_tcx0, l_level_no);
+                       l_ry0 = int_ceildivpow2(l_tcy0, l_level_no);
+                       l_rx1 = int_ceildivpow2(l_tcx1, l_level_no);
+                       l_ry1 = int_ceildivpow2(l_tcy1, l_level_no);
+
+                       l_px0 = int_floordivpow2(l_rx0, l_pdx) << l_pdx;
+                       l_py0 = int_floordivpow2(l_ry0, l_pdy) << l_pdy;
+                       l_px1 = int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
+
+                       py1 = int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
+
+                       l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
+                       l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
+
+                       l_product = l_pw * l_ph;
+
+                       /* update precision */
+                       if (l_product > *p_max_prec) {
+                               *p_max_prec = l_product;
+                       }
+               }
+               ++l_img_comp;
+               ++l_tccp;
+       }
+}
+
+/**
+ * Gets the encoding parameters needed to update the coding parameters and all the pocs.
+ * The precinct widths, heights, dx and dy for each component at each resolution will be stored as well.
+ * the last parameter of the function should be an array of pointers of size nb components, each pointer leading
+ * to an area of size 4 * max_res. The data is stored inside this area with the following pattern :
+ * dx_compi_res0 , dy_compi_res0 , w_compi_res0, h_compi_res0 , dx_compi_res1 , dy_compi_res1 , w_compi_res1, h_compi_res1 , ...
+ *
+ * @param      p_image                 the image being encoded.
+ * @param      p_cp                    the coding parameters.
+ * @param      tileno                  the tile index of the tile being encoded.
+ * @param      p_tx0                   pointer that will hold the X0 parameter for the tile
+ * @param      p_tx1                   pointer that will hold the X1 parameter for the tile
+ * @param      p_ty0                   pointer that will hold the Y0 parameter for the tile
+ * @param      p_ty1                   pointer that will hold the Y1 parameter for the tile
+ * @param      p_max_prec              pointer that will hold the the maximum precision for all the bands of the tile
+ * @param      p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
+ * @param      p_dx_min                pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
+ * @param      p_dy_min                pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
+ * @param      p_resolutions   pointer to an area corresponding to the one described above.
+ */
+void get_all_encoding_parameters(
+                                                               const opj_image_t *p_image,
+                                                               const opj_cp_v2_t *p_cp,
+                                                               OPJ_UINT32 tileno,
+                                                               OPJ_INT32 * p_tx0,
+                                                               OPJ_INT32 * p_tx1,
+                                                               OPJ_INT32 * p_ty0,
+                                                               OPJ_INT32 * p_ty1,
+                                                               OPJ_UINT32 * p_dx_min,
+                                                               OPJ_UINT32 * p_dy_min,
+                                                               OPJ_UINT32 * p_max_prec,
+                                                               OPJ_UINT32 * p_max_res,
+                                                               OPJ_UINT32 ** p_resolutions
+                                                       )
+{
+       /* loop*/
+       OPJ_UINT32 compno, resno;
+
+       /* pointers*/
+       const opj_tcp_v2_t *tcp = 00;
+       const opj_tccp_t * l_tccp = 00;
+       const opj_image_comp_t * l_img_comp = 00;
+
+       /* to store l_dx, l_dy, w and h for each resolution and component.*/
+       OPJ_UINT32 * lResolutionPtr;
+
+       /* position in x and y of tile*/
+       OPJ_UINT32 p, q;
+
+       /* preconditions in debug*/
+       assert(p_cp != 00);
+       assert(p_image != 00);
+       assert(tileno < p_cp->tw * p_cp->th);
+
+       /* initializations*/
+       tcp = &p_cp->tcps [tileno];
+       l_tccp = tcp->tccps;
+       l_img_comp = p_image->comps;
+
+       /* position in x and y of tile*/
+
+       p = tileno % p_cp->tw;
+       q = tileno / p_cp->tw;
+
+       /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
+       *p_tx0 = int_max(p_cp->tx0 + p * p_cp->tdx, p_image->x0);
+       *p_tx1 = int_min(p_cp->tx0 + (p + 1) * p_cp->tdx, p_image->x1);
+       *p_ty0 = int_max(p_cp->ty0 + q * p_cp->tdy, p_image->y0);
+       *p_ty1 = int_min(p_cp->ty0 + (q + 1) * p_cp->tdy, p_image->y1);
+
+       /* max precision and resolution is 0 (can only grow)*/
+       *p_max_prec = 0;
+       *p_max_res = 0;
+
+       /* take the largest value for dx_min and dy_min*/
+       *p_dx_min = 0x7fffffff;
+       *p_dy_min  = 0x7fffffff;
+
+       for
+               (compno = 0; compno < p_image->numcomps; ++compno)
+       {
+               /* aritmetic variables to calculate*/
+               OPJ_UINT32 l_level_no;
+               OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
+               OPJ_INT32 l_px0, l_py0, l_px1, py1;
+               OPJ_UINT32 l_product;
+               OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
+               OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
+
+               lResolutionPtr = p_resolutions[compno];
+
+               l_tcx0 = int_ceildiv(*p_tx0, l_img_comp->dx);
+               l_tcy0 = int_ceildiv(*p_ty0, l_img_comp->dy);
+               l_tcx1 = int_ceildiv(*p_tx1, l_img_comp->dx);
+               l_tcy1 = int_ceildiv(*p_ty1, l_img_comp->dy);
+               if
+                       (l_tccp->numresolutions > *p_max_res)
+               {
+                       *p_max_res = l_tccp->numresolutions;
+               }
+
+               /* use custom size for precincts*/
+               l_level_no = l_tccp->numresolutions - 1;
+               for
+                       (resno = 0; resno < l_tccp->numresolutions; ++resno)
+               {
+                       OPJ_UINT32 l_dx, l_dy;
+                       /* precinct width and height*/
+                       l_pdx = l_tccp->prcw[resno];
+                       l_pdy = l_tccp->prch[resno];
+                       *lResolutionPtr++ = l_pdx;
+                       *lResolutionPtr++ = l_pdy;
+                       l_dx = l_img_comp->dx * (1 << (l_pdx + l_level_no));
+                       l_dy = l_img_comp->dy * (1 << (l_pdy + l_level_no));
+                       /* take the minimum size for l_dx for each comp and resolution*/
+                       *p_dx_min = int_min(*p_dx_min, l_dx);
+                       *p_dy_min = int_min(*p_dy_min, l_dy);
+                       /* various calculations of extents*/
+
+                       l_rx0 = int_ceildivpow2(l_tcx0, l_level_no);
+                       l_ry0 = int_ceildivpow2(l_tcy0, l_level_no);
+                       l_rx1 = int_ceildivpow2(l_tcx1, l_level_no);
+                       l_ry1 = int_ceildivpow2(l_tcy1, l_level_no);
+                       l_px0 = int_floordivpow2(l_rx0, l_pdx) << l_pdx;
+                       l_py0 = int_floordivpow2(l_ry0, l_pdy) << l_pdy;
+                       l_px1 = int_ceildivpow2(l_rx1, l_pdx) << l_pdx;
+                       py1 = int_ceildivpow2(l_ry1, l_pdy) << l_pdy;
+                       l_pw = (l_rx0==l_rx1)?0:((l_px1 - l_px0) >> l_pdx);
+                       l_ph = (l_ry0==l_ry1)?0:((py1 - l_py0) >> l_pdy);
+                       *lResolutionPtr++ = l_pw;
+                       *lResolutionPtr++ = l_ph;
+                       l_product = l_pw * l_ph;
+                       /* update precision*/
+                       if
+                               (l_product > *p_max_prec)
+                       {
+                               *p_max_prec = l_product;
+                       }
+                       --l_level_no;
+               }
+               ++l_tccp;
+               ++l_img_comp;
+       }
+}
+
+opj_pi_iterator_t * pi_create( const opj_image_t *image,
+                                                               const opj_cp_v2_t *cp,
+                                                               OPJ_UINT32 tileno )
+{
+       /* loop*/
+       OPJ_UINT32 pino, compno;
+       /* number of poc in the p_pi*/
+       OPJ_UINT32 l_poc_bound;
+
+       /* pointers to tile coding parameters and components.*/
+       opj_pi_iterator_t *l_pi = 00;
+       opj_tcp_v2_t *tcp = 00;
+       const opj_tccp_t *tccp = 00;
+
+       /* current packet iterator being allocated*/
+       opj_pi_iterator_t *l_current_pi = 00;
+
+       /* preconditions in debug*/
+       assert(cp != 00);
+       assert(image != 00);
+       assert(tileno < cp->tw * cp->th);
+
+       /* initializations*/
+       tcp = &cp->tcps[tileno];
+       l_poc_bound = tcp->numpocs+1;
+
+       /* memory allocations*/
+       l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
+       if (!l_pi) {
+               return NULL;
+       }
+       memset(l_pi,0,l_poc_bound * sizeof(opj_pi_iterator_t));
+
+       l_current_pi = l_pi;
+       for (pino = 0; pino < l_poc_bound ; ++pino) {
+
+               l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
+               if (! l_current_pi->comps) {
+                       pi_destroy_v2(l_pi, l_poc_bound);
+                       return NULL;
+               }
+
+               l_current_pi->numcomps = image->numcomps;
+               memset(l_current_pi->comps,0,image->numcomps * sizeof(opj_pi_comp_t));
+
+               for (compno = 0; compno < image->numcomps; ++compno) {
+                       opj_pi_comp_t *comp = &l_current_pi->comps[compno];
+
+                       tccp = &tcp->tccps[compno];
+
+                       comp->resolutions = (opj_pi_resolution_t*) opj_malloc(tccp->numresolutions * sizeof(opj_pi_resolution_t));
+                       if (!comp->resolutions) {
+                               pi_destroy_v2(l_pi, l_poc_bound);
+                               return 00;
+                       }
+
+                       comp->numresolutions = tccp->numresolutions;
+                       memset(comp->resolutions,0,tccp->numresolutions * sizeof(opj_pi_resolution_t));
+               }
+               ++l_current_pi;
+       }
+       return l_pi;
+}
+
+void pi_update_encode_poc_and_final (opj_cp_v2_t *p_cp,
+                                                                        OPJ_UINT32 p_tileno,
+                                                                        OPJ_INT32 p_tx0,
+                                                                        OPJ_INT32 p_tx1,
+                                                                        OPJ_INT32 p_ty0,
+                                                                        OPJ_INT32 p_ty1,
+                                                                        OPJ_UINT32 p_max_prec,
+                                                                        OPJ_UINT32 p_max_res,
+                                     OPJ_UINT32 p_dx_min,
+                                                                        OPJ_UINT32 p_dy_min)
+{
+       /* loop*/
+       OPJ_UINT32 pino;
+       /* tile coding parameter*/
+       opj_tcp_v2_t *l_tcp = 00;
+       /* current poc being updated*/
+       opj_poc_t * l_current_poc = 00;
+
+       /* number of pocs*/
+       OPJ_UINT32 l_poc_bound;
+
+       /* preconditions in debug*/
+       assert(p_cp != 00);
+       assert(p_tileno < p_cp->tw * p_cp->th);
+
+       /* initializations*/
+       l_tcp = &p_cp->tcps [p_tileno];
+       /* number of iterations in the loop */
+       l_poc_bound = l_tcp->numpocs+1;
+
+       /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
+          store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
+       l_current_poc = l_tcp->pocs;
+
+       l_current_poc->compS = l_current_poc->compno0;
+       l_current_poc->compE = l_current_poc->compno1;
+       l_current_poc->resS = l_current_poc->resno0;
+       l_current_poc->resE = l_current_poc->resno1;
+       l_current_poc->layE = l_current_poc->layno1;
+
+       /* special treatment for the first element*/
+       l_current_poc->layS = 0;
+       l_current_poc->prg  = l_current_poc->prg1;
+       l_current_poc->prcS = 0;
+
+       l_current_poc->prcE = p_max_prec;
+       l_current_poc->txS = p_tx0;
+       l_current_poc->txE = p_tx1;
+       l_current_poc->tyS = p_ty0;
+       l_current_poc->tyE = p_ty1;
+       l_current_poc->dx = p_dx_min;
+       l_current_poc->dy = p_dy_min;
+
+       ++ l_current_poc;
+       for (pino = 1;pino < l_poc_bound ; ++pino) {
+               l_current_poc->compS = l_current_poc->compno0;
+               l_current_poc->compE= l_current_poc->compno1;
+               l_current_poc->resS = l_current_poc->resno0;
+               l_current_poc->resE = l_current_poc->resno1;
+               l_current_poc->layE = l_current_poc->layno1;
+               l_current_poc->prg  = l_current_poc->prg1;
+               l_current_poc->prcS = 0;
+               /* special treatment here different from the first element*/
+               l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
+
+               l_current_poc->prcE = p_max_prec;
+               l_current_poc->txS = p_tx0;
+               l_current_poc->txE = p_tx1;
+               l_current_poc->tyS = p_ty0;
+               l_current_poc->tyE = p_ty1;
+               l_current_poc->dx = p_dx_min;
+               l_current_poc->dy = p_dy_min;
+               ++ l_current_poc;
+       }
+}
+
+void pi_update_encode_not_poc (        opj_cp_v2_t *p_cp,
+                                                               OPJ_UINT32 p_num_comps,
+                                                               OPJ_UINT32 p_tileno,
+                                                               OPJ_INT32 p_tx0,
+                                                               OPJ_INT32 p_tx1,
+                                                               OPJ_INT32 p_ty0,
+                                                               OPJ_INT32 p_ty1,
+                                                               OPJ_UINT32 p_max_prec,
+                                                               OPJ_UINT32 p_max_res,
+                                OPJ_UINT32 p_dx_min,
+                                                               OPJ_UINT32 p_dy_min)
+{
+       /* loop*/
+       OPJ_UINT32 pino;
+       /* tile coding parameter*/
+       opj_tcp_v2_t *l_tcp = 00;
+       /* current poc being updated*/
+       opj_poc_t * l_current_poc = 00;
+       /* number of pocs*/
+       OPJ_UINT32 l_poc_bound;
+
+       /* preconditions in debug*/
+       assert(p_cp != 00);
+       assert(p_tileno < p_cp->tw * p_cp->th);
+
+       /* initializations*/
+       l_tcp = &p_cp->tcps [p_tileno];
+
+       /* number of iterations in the loop */
+       l_poc_bound = l_tcp->numpocs+1;
+
+       /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
+          store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
+       l_current_poc = l_tcp->pocs;
+
+       for (pino = 0; pino < l_poc_bound ; ++pino) {
+               l_current_poc->compS = 0;
+               l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
+               l_current_poc->resS = 0;
+               l_current_poc->resE = p_max_res;
+               l_current_poc->layS = 0;
+               l_current_poc->layE = l_tcp->numlayers;
+               l_current_poc->prg  = l_tcp->prg;
+               l_current_poc->prcS = 0;
+               l_current_poc->prcE = p_max_prec;
+               l_current_poc->txS = p_tx0;
+               l_current_poc->txE = p_tx1;
+               l_current_poc->tyS = p_ty0;
+               l_current_poc->tyE = p_ty1;
+               l_current_poc->dx = p_dx_min;
+               l_current_poc->dy = p_dy_min;
+               ++ l_current_poc;
+       }
+}
+
+void pi_destroy_v2(
+                               opj_pi_iterator_t *p_pi,
+                               OPJ_UINT32 p_nb_elements)
+{
+       OPJ_UINT32 compno, pino;
+       opj_pi_iterator_t *l_current_pi = p_pi;
+       if
+               (p_pi)
+       {
+               if
+                       (p_pi->include)
+               {
+                       opj_free(p_pi->include);
+                       p_pi->include = 00;
+               }
+               /* TODO*/
+               for
+                       (pino = 0; pino < p_nb_elements; ++pino)
+               {
+                       if
+                               (l_current_pi->comps)
+                       {
+                               opj_pi_comp_t *l_current_component = l_current_pi->comps;
+                               for
+                                       (compno = 0; compno < l_current_pi->numcomps; compno++)
+                               {
+                                       if
+                                               (l_current_component->resolutions)
+                                       {
+                                               opj_free(l_current_component->resolutions);
+                                               l_current_component->resolutions = 00;
+                                       }
+                                       ++l_current_component;
+                               }
+                               opj_free(l_current_pi->comps);
+                               l_current_pi->comps = 0;
+                       }
+                       ++l_current_pi;
+               }
+               opj_free(p_pi);
+       }
+}
+
+void pi_update_decode_poc (opj_pi_iterator_t * p_pi,opj_tcp_v2_t * p_tcp,OPJ_UINT32 p_max_precision,OPJ_UINT32 p_max_res)
+{
+       /* loop*/
+       OPJ_UINT32 pino;
+
+       /* encoding prameters to set*/
+       OPJ_UINT32 l_bound;
+
+       opj_pi_iterator_t * l_current_pi = 00;
+       opj_poc_t* l_current_poc = 0;
+
+       /* preconditions in debug*/
+       assert(p_pi != 00);
+       assert(p_tcp != 00);
+
+       /* initializations*/
+       l_bound = p_tcp->numpocs+1;
+       l_current_pi = p_pi;
+       l_current_poc = p_tcp->pocs;
+
+       for
+               (pino = 0;pino<l_bound;++pino)
+       {
+               l_current_pi->poc.prg = l_current_poc->prg;
+               l_current_pi->first = 1;
+
+               l_current_pi->poc.resno0 = l_current_poc->resno0;
+               l_current_pi->poc.compno0 = l_current_poc->compno0;
+               l_current_pi->poc.layno0 = 0;
+               l_current_pi->poc.precno0 = 0;
+               l_current_pi->poc.resno1 = l_current_poc->resno1;
+               l_current_pi->poc.compno1 = l_current_poc->compno1;
+               l_current_pi->poc.layno1 = l_current_poc->layno1;
+               l_current_pi->poc.precno1 = p_max_precision;
+               ++l_current_pi;
+               ++l_current_poc;
+       }
+}
+
+void pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,opj_tcp_v2_t * p_tcp,OPJ_UINT32 p_max_precision,OPJ_UINT32 p_max_res)
+{
+       /* loop*/
+       OPJ_UINT32 pino;
+
+       /* encoding prameters to set*/
+       OPJ_UINT32 l_bound;
+
+       opj_pi_iterator_t * l_current_pi = 00;
+       /* preconditions in debug*/
+       assert(p_tcp != 00);
+       assert(p_pi != 00);
+
+       /* initializations*/
+       l_bound = p_tcp->numpocs+1;
+       l_current_pi = p_pi;
+
+       for
+               (pino = 0;pino<l_bound;++pino)
+       {
+               l_current_pi->poc.prg = p_tcp->prg;
+               l_current_pi->first = 1;
+               l_current_pi->poc.resno0 = 0;
+               l_current_pi->poc.compno0 = 0;
+               l_current_pi->poc.layno0 = 0;
+               l_current_pi->poc.precno0 = 0;
+               l_current_pi->poc.resno1 = p_max_res;
+               l_current_pi->poc.compno1 = l_current_pi->numcomps;
+               l_current_pi->poc.layno1 = p_tcp->numlayers;
+               l_current_pi->poc.precno1 = p_max_precision;
+               ++l_current_pi;
+       }
+}
+
+void pi_create_encode_v2(      opj_pi_iterator_t *pi,
+                                                       opj_cp_v2_t *cp,
+                                                       OPJ_UINT32 tileno,
+                                                       OPJ_UINT32 pino,
+                                                       OPJ_UINT32 tpnum,
+                                                       OPJ_INT32 tppos,
+                                                       J2K_T2_MODE t2_mode)
+{
+       const OPJ_CHAR *prog;
+       OPJ_INT32 i,l;
+       OPJ_UINT32 incr_top=1,resetX=0;
+       opj_tcp_v2_t *tcps =&cp->tcps[tileno];
+       opj_poc_t *tcp= &tcps->pocs[pino];
+
+       prog = opj_j2k_convert_progression_order(tcp->prg);
+
+       pi[pino].first = 1;
+       pi[pino].poc.prg = tcp->prg;
+
+       if(!(cp->m_specific_param.m_enc.m_tp_on&& ((!cp->m_specific_param.m_enc.m_cinema && (t2_mode == FINAL_PASS)) || cp->m_specific_param.m_enc.m_cinema))){
+               pi[pino].poc.resno0 = tcp->resS;
+               pi[pino].poc.resno1 = tcp->resE;
+               pi[pino].poc.compno0 = tcp->compS;
+               pi[pino].poc.compno1 = tcp->compE;
+               pi[pino].poc.layno0 = tcp->layS;
+               pi[pino].poc.layno1 = tcp->layE;
+               pi[pino].poc.precno0 = tcp->prcS;
+               pi[pino].poc.precno1 = tcp->prcE;
+               pi[pino].poc.tx0 = tcp->txS;
+               pi[pino].poc.ty0 = tcp->tyS;
+               pi[pino].poc.tx1 = tcp->txE;
+               pi[pino].poc.ty1 = tcp->tyE;
+       }else {
+               for(i=tppos+1;i<4;i++){
+                       switch(prog[i]){
+                       case 'R':
+                               pi[pino].poc.resno0 = tcp->resS;
+                               pi[pino].poc.resno1 = tcp->resE;
+                               break;
+                       case 'C':
+                               pi[pino].poc.compno0 = tcp->compS;
+                               pi[pino].poc.compno1 = tcp->compE;
+                               break;
+                       case 'L':
+                               pi[pino].poc.layno0 = tcp->layS;
+                               pi[pino].poc.layno1 = tcp->layE;
+                               break;
+                       case 'P':
+                               switch(tcp->prg){
+                                       case LRCP:
+                                       case RLCP:
+                                               pi[pino].poc.precno0 = tcp->prcS;
+                                               pi[pino].poc.precno1 = tcp->prcE;
+                                               break;
+                                       default:
+                                               pi[pino].poc.tx0 = tcp->txS;
+                                               pi[pino].poc.ty0 = tcp->tyS;
+                                               pi[pino].poc.tx1 = tcp->txE;
+                                               pi[pino].poc.ty1 = tcp->tyE;
+                                               break;
+                               }
+                               break;
+                       }
+               }
+
+               if(tpnum==0){
+                       for(i=tppos;i>=0;i--){
+                               switch(prog[i]){
+                                               case 'C':
+                                                       tcp->comp_t = tcp->compS;
+                                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                       tcp->comp_t+=1;
+                                                       break;
+                                               case 'R':
+                                                       tcp->res_t = tcp->resS;
+                                                       pi[pino].poc.resno0 = tcp->res_t;
+                                                       pi[pino].poc.resno1 = tcp->res_t+1;
+                                                       tcp->res_t+=1;
+                                                       break;
+                                               case 'L':
+                                                       tcp->lay_t = tcp->layS;
+                                                       pi[pino].poc.layno0 = tcp->lay_t;
+                                                       pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                       tcp->lay_t+=1;
+                                                       break;
+                                               case 'P':
+                                                       switch(tcp->prg){
+                                                               case LRCP:
+                                                               case RLCP:
+                                                                       tcp->prc_t = tcp->prcS;
+                                                                       pi[pino].poc.precno0 = tcp->prc_t;
+                                                                       pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                                       tcp->prc_t+=1;
+                                                                       break;
+                                                               default:
+                                                                       tcp->tx0_t = tcp->txS;
+                                                                       tcp->ty0_t = tcp->tyS;
+                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
+                                                                       pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                       pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                       tcp->tx0_t = pi[pino].poc.tx1;
+                                                                       tcp->ty0_t = pi[pino].poc.ty1;
+                                                                       break;
+                                                       }
+                                                       break;
+                               }
+                       }
+                       incr_top=1;
+               }else{
+                       for(i=tppos;i>=0;i--){
+                               switch(prog[i]){
+                                               case 'C':
+                                                       pi[pino].poc.compno0 = tcp->comp_t-1;
+                                                       pi[pino].poc.compno1 = tcp->comp_t;
+                                                       break;
+                                               case 'R':
+                                                       pi[pino].poc.resno0 = tcp->res_t-1;
+                                                       pi[pino].poc.resno1 = tcp->res_t;
+                                                       break;
+                                               case 'L':
+                                                       pi[pino].poc.layno0 = tcp->lay_t-1;
+                                                       pi[pino].poc.layno1 = tcp->lay_t;
+                                                       break;
+                                               case 'P':
+                                                       switch(tcp->prg){
+                                                               case LRCP:
+                                                               case RLCP:
+                                                                       pi[pino].poc.precno0 = tcp->prc_t-1;
+                                                                       pi[pino].poc.precno1 = tcp->prc_t;
+                                                                       break;
+                                                               default:
+                                                                       pi[pino].poc.tx0 = tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx);
+                                                                       pi[pino].poc.tx1 = tcp->tx0_t ;
+                                                                       pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                       pi[pino].poc.ty1 = tcp->ty0_t ;
+                                                                       break;
+                                                       }
+                                                       break;
+                               }
+                               if(incr_top==1){
+                                       switch(prog[i]){
+                                                       case 'R':
+                                                               if(tcp->res_t==tcp->resE){
+                                                                       l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                                                       if(l==1){
+                                                                               tcp->res_t = tcp->resS;
+                                                                               pi[pino].poc.resno0 = tcp->res_t;
+                                                                               pi[pino].poc.resno1 = tcp->res_t+1;
+                                                                               tcp->res_t+=1;
+                                                                               incr_top=1;
+                                                                       }else{
+                                                                               incr_top=0;
+                                                                       }
+                                                               }else{
+                                                                       pi[pino].poc.resno0 = tcp->res_t;
+                                                                       pi[pino].poc.resno1 = tcp->res_t+1;
+                                                                       tcp->res_t+=1;
+                                                                       incr_top=0;
+                                                               }
+                                                               break;
+                                                       case 'C':
+                                                               if(tcp->comp_t ==tcp->compE){
+                                                                       l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                                                       if(l==1){
+                                                                               tcp->comp_t = tcp->compS;
+                                                                               pi[pino].poc.compno0 = tcp->comp_t;
+                                                                               pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                                               tcp->comp_t+=1;
+                                                                               incr_top=1;
+                                                                       }else{
+                                                                               incr_top=0;
+                                                                       }
+                                                               }else{
+                                                                       pi[pino].poc.compno0 = tcp->comp_t;
+                                                                       pi[pino].poc.compno1 = tcp->comp_t+1;
+                                                                       tcp->comp_t+=1;
+                                                                       incr_top=0;
+                                                               }
+                                                               break;
+                                                       case 'L':
+                                                               if(tcp->lay_t == tcp->layE){
+                                                                       l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                                                       if(l==1){
+                                                                               tcp->lay_t = tcp->layS;
+                                                                               pi[pino].poc.layno0 = tcp->lay_t;
+                                                                               pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                                               tcp->lay_t+=1;
+                                                                               incr_top=1;
+                                                                       }else{
+                                                                               incr_top=0;
+                                                                       }
+                                                               }else{
+                                                                       pi[pino].poc.layno0 = tcp->lay_t;
+                                                                       pi[pino].poc.layno1 = tcp->lay_t+1;
+                                                                       tcp->lay_t+=1;
+                                                                       incr_top=0;
+                                                               }
+                                                               break;
+                                                       case 'P':
+                                                               switch(tcp->prg){
+                                                                       case LRCP:
+                                                                       case RLCP:
+                                                                               if(tcp->prc_t == tcp->prcE){
+                                                                                       l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                                                                       if(l==1){
+                                                                                               tcp->prc_t = tcp->prcS;
+                                                                                               pi[pino].poc.precno0 = tcp->prc_t;
+                                                                                               pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                                                               tcp->prc_t+=1;
+                                                                                               incr_top=1;
+                                                                                       }else{
+                                                                                               incr_top=0;
+                                                                                       }
+                                                                               }else{
+                                                                                       pi[pino].poc.precno0 = tcp->prc_t;
+                                                                                       pi[pino].poc.precno1 = tcp->prc_t+1;
+                                                                                       tcp->prc_t+=1;
+                                                                                       incr_top=0;
+                                                                               }
+                                                                               break;
+                                                                       default:
+                                                                               if(tcp->tx0_t >= tcp->txE){
+                                                                                       if(tcp->ty0_t >= tcp->tyE){
+                                                                                               l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                                                                               if(l==1){
+                                                                                                       tcp->ty0_t = tcp->tyS;
+                                                                                                       pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                                                       pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                                                       tcp->ty0_t = pi[pino].poc.ty1;
+                                                                                                       incr_top=1;resetX=1;
+                                                                                               }else{
+                                                                                                       incr_top=0;resetX=0;
+                                                                                               }
+                                                                                       }else{
+                                                                                               pi[pino].poc.ty0 = tcp->ty0_t;
+                                                                                               pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
+                                                                                               tcp->ty0_t = pi[pino].poc.ty1;
+                                                                                               incr_top=0;resetX=1;
+                                                                                       }
+                                                                                       if(resetX==1){
+                                                                                               tcp->tx0_t = tcp->txS;
+                                                                                               pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                                               pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
+                                                                                               tcp->tx0_t = pi[pino].poc.tx1;
+                                                                                       }
+                                                                               }else{
+                                                                                       pi[pino].poc.tx0 = tcp->tx0_t;
+                                                                                       pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx);
+                                                                                       tcp->tx0_t = pi[pino].poc.tx1;
+                                                                                       incr_top=0;
+                                                                               }
+                                                                               break;
+                                                               }
+                                                               break;
+                                       }
+                               }
+                       }
+               }
+       }
+}
+
+OPJ_INT32 pi_check_next_level( OPJ_INT32 pos,
+                                                               opj_cp_v2_t *cp,
+                                                               OPJ_UINT32 tileno,
+                                                               OPJ_UINT32 pino,
+                                                               const OPJ_CHAR *prog)
+{
+       OPJ_INT32 i,l;
+       opj_tcp_v2_t *tcps =&cp->tcps[tileno];
+       opj_poc_t *tcp = &tcps->pocs[pino];
+
+       if(pos>=0){
+               for(i=pos;pos>=0;i--){
+                       switch(prog[i]){
+               case 'R':
+                       if(tcp->res_t==tcp->resE){
+                               l=pi_check_next_level(pos-1,cp,tileno,pino,prog);
+                               if(l==1){
+                                       return 1;
+                               }else{
+                                       return 0;
+                               }
+                       }else{
+                               return 1;
+                       }
+                       break;
+               case 'C':
+                       if(tcp->comp_t==tcp->compE){
+                               l=pi_check_next_level(pos-1,cp,tileno,pino,prog);
+                               if(l==1){
+                                       return 1;
+                               }else{
+                                       return 0;
+                               }
+                       }else{
+                               return 1;
+                       }
+                       break;
+               case 'L':
+                       if(tcp->lay_t==tcp->layE){
+                               l=pi_check_next_level(pos-1,cp,tileno,pino,prog);
+                               if(l==1){
+                                       return 1;
+                               }else{
+                                       return 0;
+                               }
+                       }else{
+                               return 1;
+                       }
+                       break;
+               case 'P':
+                       switch(tcp->prg){
+                               case LRCP||RLCP:
+                                       if(tcp->prc_t == tcp->prcE){
+                                               l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                               if(l==1){
+                                                       return 1;
+                                               }else{
+                                                       return 0;
+                                               }
+                                       }else{
+                                               return 1;
+                                       }
+                                       break;
+                       default:
+                               if(tcp->tx0_t == tcp->txE){
+                                       /*TY*/
+                                       if(tcp->ty0_t == tcp->tyE){
+                                               l=pi_check_next_level(i-1,cp,tileno,pino,prog);
+                                               if(l==1){
+                                                       return 1;
+                                               }else{
+                                                       return 0;
+                                               }
+                                       }else{
+                                               return 1;
+                                       }/*TY*/
+                               }else{
+                                       return 1;
+                               }
+                               break;
+                       }/*end case P*/
+               }/*end switch*/
+               }/*end for*/
+       }/*end if*/
+       return 0;
+}