Merge to XFA: Move libopenjpeg to third_party/

Original Review URL: https://codereview.chromium.org/1185373010.
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1193773002.

1 files changed, 1877 insertions, 0 deletions

diff --git a/third_party/libopenjpeg20/pi.c b/third_party/libopenjpeg20/pi.c
new file mode 100644
index 0000000000..393a1e5540
--- /dev/null
+++ b/third_party/libopenjpeg20/pi.c
@@ -0,0 +1,1877 @@
+/*
+ * The copyright in this software is being made available under the 2-clauses 
+ * BSD License, included below. This software may be subject to other third 
+ * party and contributor rights, including patent rights, and no such rights
+ * are granted under this license.
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux 
+ * Copyright (c) 2003-2014, 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
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "opj_includes.h"
+
+/** @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 opj_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 opj_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 opj_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 opj_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 opj_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 opj_pi_update_encode_poc_and_final ( opj_cp_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);
+
+/**
+ * Updates the coding parameters if the encoding is not used with Progression order changes and final (and cinema parameters are used).
+ *
+ * @param	p_cp		the coding parameters to modify
+ * @param	p_num_comps		the number of components
+ * @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 opj_pi_update_encode_not_poc (  opj_cp_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);
+/**
+ * Gets the encoding parameters needed to update the coding parameters and all the pocs.
+ * 
+ * @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.
+ */
+static void opj_get_encoding_parameters(const opj_image_t *p_image,
+                                        const opj_cp_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 );
+
+/**
+ * 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.
+ */
+static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
+                                            const opj_cp_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 );
+/**
+ * Allocates memory for a packet iterator. Data and data sizes are set by this operation.
+ * No other data is set. The include section of the packet  iterator is not allocated.
+ * 
+ * @param	p_image		the image used to initialize the packet iterator (in fact only the number of components is relevant.
+ * @param	p_cp		the coding parameters.
+ * @param	tileno	the index of the tile from which creating the packet iterator.
+ */
+static opj_pi_iterator_t * opj_pi_create(	const opj_image_t *p_image,
+                                            const opj_cp_t *p_cp,
+                                            OPJ_UINT32 tileno );
+/**
+ * FIXME DOC
+ */
+static void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
+                                          opj_tcp_t * p_tcp,
+                                          OPJ_UINT32 p_max_precision,
+                                          OPJ_UINT32 p_max_res);
+/**
+ * FIXME DOC
+ */
+static void opj_pi_update_decode_poc (  opj_pi_iterator_t * p_pi,
+                                        opj_tcp_t * p_tcp,
+                                        OPJ_UINT32 p_max_precision,
+                                        OPJ_UINT32 p_max_res);
+
+/**
+ * FIXME DOC
+ */
+OPJ_BOOL opj_pi_check_next_level(	OPJ_INT32 pos,
+								opj_cp_t *cp,
+								OPJ_UINT32 tileno,
+								OPJ_UINT32 pino,
+								const OPJ_CHAR *prog);
+
+/*@}*/
+
+/*@}*/
+
+/*
+==========================================================
+   local functions
+==========================================================
+*/
+
+OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi) {
+	opj_pi_comp_t *comp = NULL;
+	opj_pi_resolution_t *res = NULL;
+	OPJ_UINT32 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 OPJ_FALSE;
+}
+
+OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi) {
+	opj_pi_comp_t *comp = NULL;
+	opj_pi_resolution_t *res = NULL;
+	OPJ_UINT32 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 OPJ_FALSE;
+}
+
+OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi) {
+	opj_pi_comp_t *comp = NULL;
+	opj_pi_resolution_t *res = NULL;
+	OPJ_UINT32 index = 0;
+
+	if (!pi->first) {
+		goto LABEL_SKIP;
+	} else {
+		OPJ_UINT32 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++) {
+				OPJ_UINT32 dx, dy;
+				res = &comp->resolutions[resno];
+				dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
+				dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
+				pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
+				pi->dy = !pi->dy ? dy : opj_uint_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 += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
+			for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
+				for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
+					OPJ_UINT32 levelno;
+					OPJ_INT32 trx0, try0;
+					OPJ_INT32  trx1, try1;
+					OPJ_UINT32  rpx, rpy;
+					OPJ_INT32  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 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
+					try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
+					trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
+					try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
+					rpx = res->pdx + levelno;
+					rpy = res->pdy + levelno;
+					if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
+						continue;	
+					}
+					if (!((pi->x % (OPJ_INT32)(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 = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
+						 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
+					prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
+						 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
+					pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)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 OPJ_FALSE;
+}
+
+OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi) {
+	opj_pi_comp_t *comp = NULL;
+	opj_pi_resolution_t *res = NULL;
+	OPJ_UINT32 index = 0;
+
+	if (!pi->first) {
+		comp = &pi->comps[pi->compno];
+		goto LABEL_SKIP;
+	} else {
+		OPJ_UINT32 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++) {
+				OPJ_UINT32 dx, dy;
+				res = &comp->resolutions[resno];
+				dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
+				dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
+				pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
+				pi->dy = !pi->dy ? dy : opj_uint_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 += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
+		for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)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 < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
+					OPJ_UINT32 levelno;
+					OPJ_INT32 trx0, try0;
+					OPJ_INT32 trx1, try1;
+					OPJ_UINT32 rpx, rpy;
+					OPJ_INT32 prci, prcj;
+					res = &comp->resolutions[pi->resno];
+					levelno = comp->numresolutions - 1 - pi->resno;
+					trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
+					try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
+					trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
+					try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
+					rpx = res->pdx + levelno;
+					rpy = res->pdy + levelno;
+					if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
+						continue;	
+					}
+					if (!((pi->x % (OPJ_INT32)(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 = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
+						 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
+					prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
+						 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
+					pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)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 OPJ_FALSE;
+}
+
+OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi) {
+	opj_pi_comp_t *comp = NULL;
+	opj_pi_resolution_t *res = NULL;
+	OPJ_UINT32 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++) {
+		OPJ_UINT32 resno;
+		comp = &pi->comps[pi->compno];
+		pi->dx = 0;
+		pi->dy = 0;
+		for (resno = 0; resno < comp->numresolutions; resno++) {
+			OPJ_UINT32 dx, dy;
+			res = &comp->resolutions[resno];
+			dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
+			dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
+			pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
+			pi->dy = !pi->dy ? dy : opj_uint_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 += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
+			for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
+				for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
+					OPJ_UINT32 levelno;
+					OPJ_INT32 trx0, try0;
+					OPJ_INT32 trx1, try1;
+					OPJ_UINT32 rpx, rpy;
+					OPJ_INT32 prci, prcj;
+					res = &comp->resolutions[pi->resno];
+					levelno = comp->numresolutions - 1 - pi->resno;
+					trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
+					try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
+					trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
+					try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
+					rpx = res->pdx + levelno;
+					rpy = res->pdy + levelno;
+					if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
+						continue;	
+					}
+					if (!((pi->x % (OPJ_INT32)(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 = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
+						 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
+					prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
+						 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
+					pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)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 OPJ_FALSE;
+}
+
+void opj_get_encoding_parameters(	const opj_image_t *p_image,
+                                    const opj_cp_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_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 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
+	*p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
+	*p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
+	*p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)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 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
+		l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
+		l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
+		l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)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 * (1u << (l_pdx + l_tccp->numresolutions - 1 - resno));
+			l_dy = l_img_comp->dy * (1u << (l_pdy + l_tccp->numresolutions - 1 - resno));
+
+			/* take the minimum size for dx for each comp and resolution */
+			*p_dx_min = opj_uint_min(*p_dx_min, l_dx);
+			*p_dy_min = opj_uint_min(*p_dy_min, l_dy);
+
+			/* various calculations of extents */
+			l_level_no = l_tccp->numresolutions - 1 - resno;
+
+			l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
+			l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
+			l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
+			l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
+
+			l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
+			l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
+			l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
+
+			py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
+
+			l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
+			l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((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;
+	}
+}
+
+
+void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
+                                        const opj_cp_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_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;
+
+	/* non-corrected (in regard to image offset) tile offset */
+	OPJ_UINT32 l_tx0, l_ty0;
+
+	/* 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 */
+	l_tx0 = p_cp->tx0 + p * p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
+	*p_tx0 = (OPJ_INT32)opj_uint_max(l_tx0, p_image->x0);
+	*p_tx1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
+	l_ty0 = p_cp->ty0 + q * p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
+	*p_ty0 = (OPJ_INT32)opj_uint_max(l_ty0, p_image->y0);
+	*p_ty1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_ty0, 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 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
+		l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
+		l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
+		l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)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 * (1u << (l_pdx + l_level_no));
+			l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
+			/* take the minimum size for l_dx for each comp and resolution*/
+			*p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dx_min, (OPJ_INT32)l_dx);
+			*p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dy_min, (OPJ_INT32)l_dy);
+
+			/* various calculations of extents*/
+			l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
+			l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
+			l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
+			l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
+			l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
+			l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
+			l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
+			py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
+			l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
+			l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((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 * opj_pi_create(	const opj_image_t *image,
+                                    const opj_cp_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_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;
+	}
+
+	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) {
+			opj_pi_destroy(l_pi, l_poc_bound);
+			return NULL;
+		}
+
+		l_current_pi->numcomps = image->numcomps;
+
+		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_calloc(tccp->numresolutions, sizeof(opj_pi_resolution_t));
+			if (!comp->resolutions) {
+				opj_pi_destroy(l_pi, l_poc_bound);
+				return 00;
+			}
+
+			comp->numresolutions = tccp->numresolutions;
+		}
+		++l_current_pi;
+	}
+	return l_pi;
+}
+
+void opj_pi_update_encode_poc_and_final (   opj_cp_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_t *l_tcp = 00;
+	/* current poc being updated*/
+	opj_poc_t * l_current_poc = 00;
+
+	/* number of pocs*/
+	OPJ_UINT32 l_poc_bound;
+
+    OPJ_ARG_NOT_USED(p_max_res);
+
+	/* 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 = (OPJ_UINT32)p_tx0;
+	l_current_poc->txE = (OPJ_UINT32)p_tx1;
+	l_current_poc->tyS = (OPJ_UINT32)p_ty0;
+	l_current_poc->tyE = (OPJ_UINT32)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 = (OPJ_UINT32)p_tx0;
+		l_current_poc->txE = (OPJ_UINT32)p_tx1;
+		l_current_poc->tyS = (OPJ_UINT32)p_ty0;
+		l_current_poc->tyE = (OPJ_UINT32)p_ty1;
+		l_current_poc->dx = p_dx_min;
+		l_current_poc->dy = p_dy_min;
+		++ l_current_poc;
+	}
+}
+
+void opj_pi_update_encode_not_poc (	opj_cp_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_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 = (OPJ_UINT32)p_tx0;
+		l_current_poc->txE = (OPJ_UINT32)p_tx1;
+		l_current_poc->tyS = (OPJ_UINT32)p_ty0;
+		l_current_poc->tyE = (OPJ_UINT32)p_ty1;
+		l_current_poc->dx = p_dx_min;
+		l_current_poc->dy = p_dy_min;
+		++ l_current_poc;
+	}
+}
+
+void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
+                               opj_tcp_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;
+
+    OPJ_ARG_NOT_USED(p_max_res);
+
+	/* 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; /* Progression Order #0 */
+		l_current_pi->first = 1;
+
+		l_current_pi->poc.resno0 = l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
+		l_current_pi->poc.compno0 = l_current_poc->compno0; /* Component Index #0 (Start) */
+		l_current_pi->poc.layno0 = 0;
+		l_current_pi->poc.precno0 = 0;
+		l_current_pi->poc.resno1 = l_current_poc->resno1; /* Resolution Level Index #0 (End) */
+		l_current_pi->poc.compno1 = l_current_poc->compno1; /* Component Index #0 (End) */
+		l_current_pi->poc.layno1 = l_current_poc->layno1; /* Layer Index #0 (End) */
+		l_current_pi->poc.precno1 = p_max_precision;
+		++l_current_pi;
+		++l_current_poc;
+	}
+}
+
+void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
+                                   opj_tcp_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;
+	}
+}
+
+
+
+OPJ_BOOL opj_pi_check_next_level(	OPJ_INT32 pos,
+								opj_cp_t *cp,
+								OPJ_UINT32 tileno,
+								OPJ_UINT32 pino,
+								const OPJ_CHAR *prog)
+{
+	OPJ_INT32 i;
+	opj_tcp_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){
+				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
+					    return OPJ_TRUE;
+				    }else{
+					    return OPJ_FALSE;
+				    }
+			    }else{
+				    return OPJ_TRUE;
+			    }
+			    break;
+		    case 'C':
+			    if(tcp->comp_t==tcp->compE){
+				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
+					    return OPJ_TRUE;
+				    }else{
+					    return OPJ_FALSE;
+				    }
+			    }else{
+				    return OPJ_TRUE;
+			    }
+			    break;
+		    case 'L':
+			    if(tcp->lay_t==tcp->layE){
+				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
+					    return OPJ_TRUE;
+				    }else{
+					    return OPJ_FALSE;
+				    }
+			    }else{
+				    return OPJ_TRUE;
+			    }
+			    break;
+		    case 'P':
+			    switch(tcp->prg){
+                    case OPJ_LRCP: /* fall through */
+                    case OPJ_RLCP:
+					    if(tcp->prc_t == tcp->prcE){
+						    if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+							    return OPJ_TRUE;
+						    }else{
+							    return OPJ_FALSE;
+						    }
+					    }else{
+						    return OPJ_TRUE;
+					    }
+					    break;
+			    default:
+				    if(tcp->tx0_t == tcp->txE){
+					    /*TY*/
+					    if(tcp->ty0_t == tcp->tyE){
+						    if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+							    return OPJ_TRUE;
+						    }else{
+							    return OPJ_FALSE;
+						    }
+					    }else{
+						    return OPJ_TRUE;
+					    }/*TY*/
+				    }else{
+					    return OPJ_TRUE;
+				    }
+				    break;
+			    }/*end case P*/
+		    }/*end switch*/
+		}/*end for*/
+	}/*end if*/
+	return OPJ_FALSE;
+}
+
+
+/*
+==========================================================
+   Packet iterator interface
+==========================================================
+*/
+opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
+										opj_cp_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_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 * OPJ_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 = opj_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 */
+	opj_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);
+		opj_pi_destroy(l_pi, l_bound);
+		return 00;
+	}
+
+	/* 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 opj_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 )
+	{
+		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 opj_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)
+	{
+		opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
+	}
+	else
+	{
+		opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
+	}
+	return l_pi;
+}
+
+
+
+opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
+                                            opj_cp_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_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 * OPJ_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 = opj_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*/
+	opj_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);
+		opj_pi_destroy(l_pi, l_bound);
+		return 00;
+	}
+
+	/* 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 opj_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 ) {
+		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 opj_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 && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
+		opj_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 {
+		opj_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 opj_pi_create_encode( 	opj_pi_iterator_t *pi,
+							opj_cp_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;
+	OPJ_UINT32 incr_top=1,resetX=0;
+	opj_tcp_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 && ((!OPJ_IS_CINEMA(cp->rsiz) && (t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz)))){
+		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 = (OPJ_INT32)tcp->txS;
+		pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
+		pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
+		pi[pino].poc.ty1 = (OPJ_INT32)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 OPJ_LRCP:
+				case OPJ_RLCP:
+					pi[pino].poc.precno0 = tcp->prcS;
+					pi[pino].poc.precno1 = tcp->prcE;
+					break;
+				default:
+					pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
+					pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
+					pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
+					pi[pino].poc.ty1 = (OPJ_INT32)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 OPJ_LRCP:
+					case OPJ_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 = (OPJ_INT32)tcp->tx0_t;
+						pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
+						pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
+						pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
+						tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
+						tcp->ty0_t = (OPJ_UINT32)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 OPJ_LRCP:
+					case OPJ_RLCP:
+						pi[pino].poc.precno0 = tcp->prc_t-1;
+						pi[pino].poc.precno1 = tcp->prc_t;
+						break;
+					default:
+						pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
+						pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
+						pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
+						pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
+						break;
+					}
+					break;
+				}
+				if(incr_top==1){
+					switch(prog[i]){
+					case 'R':
+						if(tcp->res_t==tcp->resE){
+							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+								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){
+							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+								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){
+							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+								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 OPJ_LRCP:
+						case OPJ_RLCP:
+							if(tcp->prc_t == tcp->prcE){
+								if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+									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){
+									if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
+										tcp->ty0_t = tcp->tyS;
+										pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
+										pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
+										tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
+										incr_top=1;resetX=1;
+									}else{
+										incr_top=0;resetX=0;
+									}
+								}else{
+									pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
+									pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
+									tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
+									incr_top=0;resetX=1;
+								}
+								if(resetX==1){
+									tcp->tx0_t = tcp->txS;
+									pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
+									pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
+									tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
+								}
+							}else{
+								pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
+								pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
+								tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
+								incr_top=0;
+							}
+							break;
+						}
+						break;
+					}
+				}
+			}
+		}
+	}
+}
+
+void opj_pi_destroy(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;
+		}
+		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 opj_pi_update_encoding_parameters(	const opj_image_t *p_image,
+                                        opj_cp_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_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 */
+	opj_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) {
+		opj_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 {
+		opj_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);
+	}
+}
+
+OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi) {
+	switch (pi->poc.prg) {
+		case OPJ_LRCP:
+			return opj_pi_next_lrcp(pi);
+		case OPJ_RLCP:
+			return opj_pi_next_rlcp(pi);
+		case OPJ_RPCL:
+			return opj_pi_next_rpcl(pi);
+		case OPJ_PCRL:
+			return opj_pi_next_pcrl(pi);
+		case OPJ_CPRL:
+			return opj_pi_next_cprl(pi);
+		case OPJ_PROG_UNKNOWN:
+			return OPJ_FALSE;
+	}
+	
+	return OPJ_FALSE;
+}