pi.c revision ee451cb395940862dad63c85adfe8f2fd55e864c
1/*
2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
6 *
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren
11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
12 * Copyright (c) 2003-2014, Antonin Descampe
13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
14 * Copyright (c) 2006-2007, Parvatha Elangovan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
19 * are met:
20 * 1. Redistributions of source code must retain the above copyright
21 *    notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 *    notice, this list of conditions and the following disclaimer in the
24 *    documentation and/or other materials provided with the distribution.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
27 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
30 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#include "opj_includes.h"
40
41/** @defgroup PI PI - Implementation of a packet iterator */
42/*@{*/
43
44/** @name Local static functions */
45/*@{*/
46
47/**
48Get next packet in layer-resolution-component-precinct order.
49@param pi packet iterator to modify
50@return returns false if pi pointed to the last packet or else returns true
51*/
52static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi);
53/**
54Get next packet in resolution-layer-component-precinct order.
55@param pi packet iterator to modify
56@return returns false if pi pointed to the last packet or else returns true
57*/
58static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi);
59/**
60Get next packet in resolution-precinct-component-layer order.
61@param pi packet iterator to modify
62@return returns false if pi pointed to the last packet or else returns true
63*/
64static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi);
65/**
66Get next packet in precinct-component-resolution-layer order.
67@param pi packet iterator to modify
68@return returns false if pi pointed to the last packet or else returns true
69*/
70static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi);
71/**
72Get next packet in component-precinct-resolution-layer order.
73@param pi packet iterator to modify
74@return returns false if pi pointed to the last packet or else returns true
75*/
76static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi);
77
78/**
79 * Updates the coding parameters if the encoding is used with Progression order changes and final (or cinema parameters are used).
80 *
81 * @param	p_cp		the coding parameters to modify
82 * @param	p_tileno	the tile index being concerned.
83 * @param	p_tx0		X0 parameter for the tile
84 * @param	p_tx1		X1 parameter for the tile
85 * @param	p_ty0		Y0 parameter for the tile
86 * @param	p_ty1		Y1 parameter for the tile
87 * @param	p_max_prec	the maximum precision for all the bands of the tile
88 * @param	p_max_res	the maximum number of resolutions for all the poc inside the tile.
89 * @param	p_dx_min		the minimum dx of all the components of all the resolutions for the tile.
90 * @param	p_dy_min		the minimum dy of all the components of all the resolutions for the tile.
91 */
92static void opj_pi_update_encode_poc_and_final ( opj_cp_t *p_cp,
93                                                 OPJ_UINT32 p_tileno,
94                                                 OPJ_INT32 p_tx0,
95                                                 OPJ_INT32 p_tx1,
96                                                 OPJ_INT32 p_ty0,
97                                                 OPJ_INT32 p_ty1,
98                                                 OPJ_UINT32 p_max_prec,
99                                                 OPJ_UINT32 p_max_res,
100                                                 OPJ_UINT32 p_dx_min,
101                                                 OPJ_UINT32 p_dy_min);
102
103/**
104 * Updates the coding parameters if the encoding is not used with Progression order changes and final (and cinema parameters are used).
105 *
106 * @param	p_cp		the coding parameters to modify
107 * @param	p_num_comps		the number of components
108 * @param	p_tileno	the tile index being concerned.
109 * @param	p_tx0		X0 parameter for the tile
110 * @param	p_tx1		X1 parameter for the tile
111 * @param	p_ty0		Y0 parameter for the tile
112 * @param	p_ty1		Y1 parameter for the tile
113 * @param	p_max_prec	the maximum precision for all the bands of the tile
114 * @param	p_max_res	the maximum number of resolutions for all the poc inside the tile.
115 * @param	p_dx_min		the minimum dx of all the components of all the resolutions for the tile.
116 * @param	p_dy_min		the minimum dy of all the components of all the resolutions for the tile.
117 */
118static void opj_pi_update_encode_not_poc (  opj_cp_t *p_cp,
119                                            OPJ_UINT32 p_num_comps,
120                                            OPJ_UINT32 p_tileno,
121                                            OPJ_INT32 p_tx0,
122                                            OPJ_INT32 p_tx1,
123                                            OPJ_INT32 p_ty0,
124                                            OPJ_INT32 p_ty1,
125                                            OPJ_UINT32 p_max_prec,
126                                            OPJ_UINT32 p_max_res,
127                                            OPJ_UINT32 p_dx_min,
128                                            OPJ_UINT32 p_dy_min);
129/**
130 * Gets the encoding parameters needed to update the coding parameters and all the pocs.
131 *
132 * @param	p_image			the image being encoded.
133 * @param	p_cp			the coding parameters.
134 * @param	tileno			the tile index of the tile being encoded.
135 * @param	p_tx0			pointer that will hold the X0 parameter for the tile
136 * @param	p_tx1			pointer that will hold the X1 parameter for the tile
137 * @param	p_ty0			pointer that will hold the Y0 parameter for the tile
138 * @param	p_ty1			pointer that will hold the Y1 parameter for the tile
139 * @param	p_max_prec		pointer that will hold the the maximum precision for all the bands of the tile
140 * @param	p_max_res		pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
141 * @param	p_dx_min			pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
142 * @param	p_dy_min			pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
143 */
144static void opj_get_encoding_parameters(const opj_image_t *p_image,
145                                        const opj_cp_t *p_cp,
146                                        OPJ_UINT32  tileno,
147                                        OPJ_INT32  * p_tx0,
148                                        OPJ_INT32 * p_tx1,
149                                        OPJ_INT32 * p_ty0,
150                                        OPJ_INT32 * p_ty1,
151                                        OPJ_UINT32 * p_dx_min,
152                                        OPJ_UINT32 * p_dy_min,
153                                        OPJ_UINT32 * p_max_prec,
154                                        OPJ_UINT32 * p_max_res );
155
156/**
157 * Gets the encoding parameters needed to update the coding parameters and all the pocs.
158 * The precinct widths, heights, dx and dy for each component at each resolution will be stored as well.
159 * the last parameter of the function should be an array of pointers of size nb components, each pointer leading
160 * to an area of size 4 * max_res. The data is stored inside this area with the following pattern :
161 * dx_compi_res0 , dy_compi_res0 , w_compi_res0, h_compi_res0 , dx_compi_res1 , dy_compi_res1 , w_compi_res1, h_compi_res1 , ...
162 *
163 * @param	p_image			the image being encoded.
164 * @param	p_cp			the coding parameters.
165 * @param	tileno			the tile index of the tile being encoded.
166 * @param	p_tx0			pointer that will hold the X0 parameter for the tile
167 * @param	p_tx1			pointer that will hold the X1 parameter for the tile
168 * @param	p_ty0			pointer that will hold the Y0 parameter for the tile
169 * @param	p_ty1			pointer that will hold the Y1 parameter for the tile
170 * @param	p_max_prec		pointer that will hold the the maximum precision for all the bands of the tile
171 * @param	p_max_res		pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
172 * @param	p_dx_min		pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
173 * @param	p_dy_min		pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
174 * @param	p_resolutions	pointer to an area corresponding to the one described above.
175 */
176static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
177                                            const opj_cp_t *p_cp,
178                                            OPJ_UINT32 tileno,
179                                            OPJ_INT32 * p_tx0,
180                                            OPJ_INT32 * p_tx1,
181                                            OPJ_INT32 * p_ty0,
182                                            OPJ_INT32 * p_ty1,
183                                            OPJ_UINT32 * p_dx_min,
184                                            OPJ_UINT32 * p_dy_min,
185                                            OPJ_UINT32 * p_max_prec,
186                                            OPJ_UINT32 * p_max_res,
187                                            OPJ_UINT32 ** p_resolutions );
188/**
189 * Allocates memory for a packet iterator. Data and data sizes are set by this operation.
190 * No other data is set. The include section of the packet  iterator is not allocated.
191 *
192 * @param	p_image		the image used to initialize the packet iterator (in fact only the number of components is relevant.
193 * @param	p_cp		the coding parameters.
194 * @param	tileno	the index of the tile from which creating the packet iterator.
195 */
196static opj_pi_iterator_t * opj_pi_create(	const opj_image_t *p_image,
197                                            const opj_cp_t *p_cp,
198                                            OPJ_UINT32 tileno );
199/**
200 * FIXME DOC
201 */
202static void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
203                                          opj_tcp_t * p_tcp,
204                                          OPJ_UINT32 p_max_precision,
205                                          OPJ_UINT32 p_max_res);
206/**
207 * FIXME DOC
208 */
209static void opj_pi_update_decode_poc (  opj_pi_iterator_t * p_pi,
210                                        opj_tcp_t * p_tcp,
211                                        OPJ_UINT32 p_max_precision,
212                                        OPJ_UINT32 p_max_res);
213
214/**
215 * FIXME DOC
216 */
217OPJ_BOOL opj_pi_check_next_level(	OPJ_INT32 pos,
218								opj_cp_t *cp,
219								OPJ_UINT32 tileno,
220								OPJ_UINT32 pino,
221								const OPJ_CHAR *prog);
222
223/*@}*/
224
225/*@}*/
226
227/*
228==========================================================
229   local functions
230==========================================================
231*/
232
233OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi) {
234	opj_pi_comp_t *comp = NULL;
235	opj_pi_resolution_t *res = NULL;
236	OPJ_UINT32 index = 0;
237
238	if (!pi->first) {
239		comp = &pi->comps[pi->compno];
240		res = &comp->resolutions[pi->resno];
241		goto LABEL_SKIP;
242	} else {
243		pi->first = 0;
244	}
245
246	for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
247		for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
248		pi->resno++) {
249			for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
250				comp = &pi->comps[pi->compno];
251				if (pi->resno >= comp->numresolutions) {
252					continue;
253				}
254				res = &comp->resolutions[pi->resno];
255				if (!pi->tp_on){
256					pi->poc.precno1 = res->pw * res->ph;
257				}
258				for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
259					index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
260					if (!pi->include[index]) {
261						pi->include[index] = 1;
262						return OPJ_TRUE;
263					}
264LABEL_SKIP:;
265				}
266			}
267		}
268	}
269
270	return OPJ_FALSE;
271}
272
273OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi) {
274	opj_pi_comp_t *comp = NULL;
275	opj_pi_resolution_t *res = NULL;
276	OPJ_UINT32 index = 0;
277
278	if (!pi->first) {
279		comp = &pi->comps[pi->compno];
280		res = &comp->resolutions[pi->resno];
281		goto LABEL_SKIP;
282	} else {
283		pi->first = 0;
284	}
285
286	for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
287		for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
288			for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
289				comp = &pi->comps[pi->compno];
290				if (pi->resno >= comp->numresolutions) {
291					continue;
292				}
293				res = &comp->resolutions[pi->resno];
294				if(!pi->tp_on){
295					pi->poc.precno1 = res->pw * res->ph;
296				}
297				for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
298					index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
299					if (!pi->include[index]) {
300						pi->include[index] = 1;
301						return OPJ_TRUE;
302					}
303LABEL_SKIP:;
304				}
305			}
306		}
307	}
308
309	return OPJ_FALSE;
310}
311
312OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi) {
313	opj_pi_comp_t *comp = NULL;
314	opj_pi_resolution_t *res = NULL;
315	OPJ_UINT32 index = 0;
316
317	if (!pi->first) {
318		goto LABEL_SKIP;
319	} else {
320		OPJ_UINT32 compno, resno;
321		pi->first = 0;
322		pi->dx = 0;
323		pi->dy = 0;
324		for (compno = 0; compno < pi->numcomps; compno++) {
325			comp = &pi->comps[compno];
326			for (resno = 0; resno < comp->numresolutions; resno++) {
327				OPJ_UINT32 dx, dy;
328				res = &comp->resolutions[resno];
329				dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
330				dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
331				pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
332				pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
333			}
334		}
335	}
336if (!pi->tp_on){
337			pi->poc.ty0 = pi->ty0;
338			pi->poc.tx0 = pi->tx0;
339			pi->poc.ty1 = pi->ty1;
340			pi->poc.tx1 = pi->tx1;
341		}
342	for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
343		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))) {
344			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))) {
345				for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
346					OPJ_UINT32 levelno;
347					OPJ_INT32 trx0, try0;
348					OPJ_INT32  trx1, try1;
349					OPJ_UINT32  rpx, rpy;
350					OPJ_INT32  prci, prcj;
351					comp = &pi->comps[pi->compno];
352					if (pi->resno >= comp->numresolutions) {
353						continue;
354					}
355					res = &comp->resolutions[pi->resno];
356					levelno = comp->numresolutions - 1 - pi->resno;
357					trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
358					try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
359					trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
360					try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
361					rpx = res->pdx + levelno;
362					rpy = res->pdy + levelno;
363					if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
364						continue;
365					}
366					if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
367						continue;
368					}
369
370					if ((res->pw==0)||(res->ph==0)) continue;
371
372					if ((trx0==trx1)||(try0==try1)) continue;
373
374					prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
375						 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
376					prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
377						 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
378					pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
379					for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
380						index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
381						if (!pi->include[index]) {
382							pi->include[index] = 1;
383							return OPJ_TRUE;
384						}
385LABEL_SKIP:;
386					}
387				}
388			}
389		}
390	}
391
392	return OPJ_FALSE;
393}
394
395OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi) {
396	opj_pi_comp_t *comp = NULL;
397	opj_pi_resolution_t *res = NULL;
398	OPJ_UINT32 index = 0;
399
400	if (!pi->first) {
401		comp = &pi->comps[pi->compno];
402		goto LABEL_SKIP;
403	} else {
404		OPJ_UINT32 compno, resno;
405		pi->first = 0;
406		pi->dx = 0;
407		pi->dy = 0;
408		for (compno = 0; compno < pi->numcomps; compno++) {
409			comp = &pi->comps[compno];
410			for (resno = 0; resno < comp->numresolutions; resno++) {
411				OPJ_UINT32 dx, dy;
412				res = &comp->resolutions[resno];
413				dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
414				dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
415				pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
416				pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
417			}
418		}
419	}
420	if (!pi->tp_on){
421			pi->poc.ty0 = pi->ty0;
422			pi->poc.tx0 = pi->tx0;
423			pi->poc.ty1 = pi->ty1;
424			pi->poc.tx1 = pi->tx1;
425		}
426	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))) {
427		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))) {
428			for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
429				comp = &pi->comps[pi->compno];
430				for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
431					OPJ_UINT32 levelno;
432					OPJ_INT32 trx0, try0;
433					OPJ_INT32 trx1, try1;
434					OPJ_UINT32 rpx, rpy;
435					OPJ_INT32 prci, prcj;
436					res = &comp->resolutions[pi->resno];
437					levelno = comp->numresolutions - 1 - pi->resno;
438					trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
439					try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
440					trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
441					try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
442					rpx = res->pdx + levelno;
443					rpy = res->pdy + levelno;
444					if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
445						continue;
446					}
447					if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
448						continue;
449					}
450
451					if ((res->pw==0)||(res->ph==0)) continue;
452
453					if ((trx0==trx1)||(try0==try1)) continue;
454
455					prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
456						 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
457					prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
458						 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
459					pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
460					for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
461						index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
462						if (!pi->include[index]) {
463							pi->include[index] = 1;
464							return OPJ_TRUE;
465						}
466LABEL_SKIP:;
467					}
468				}
469			}
470		}
471	}
472
473	return OPJ_FALSE;
474}
475
476OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi) {
477	opj_pi_comp_t *comp = NULL;
478	opj_pi_resolution_t *res = NULL;
479	OPJ_UINT32 index = 0;
480
481	if (!pi->first) {
482		comp = &pi->comps[pi->compno];
483		goto LABEL_SKIP;
484	} else {
485		pi->first = 0;
486	}
487
488	for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
489		OPJ_UINT32 resno;
490		comp = &pi->comps[pi->compno];
491		pi->dx = 0;
492		pi->dy = 0;
493		for (resno = 0; resno < comp->numresolutions; resno++) {
494			OPJ_UINT32 dx, dy;
495			res = &comp->resolutions[resno];
496			dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
497			dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
498			pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
499			pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
500		}
501		if (!pi->tp_on){
502			pi->poc.ty0 = pi->ty0;
503			pi->poc.tx0 = pi->tx0;
504			pi->poc.ty1 = pi->ty1;
505			pi->poc.tx1 = pi->tx1;
506		}
507		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))) {
508			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))) {
509				for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
510					OPJ_UINT32 levelno;
511					OPJ_INT32 trx0, try0;
512					OPJ_INT32 trx1, try1;
513					OPJ_UINT32 rpx, rpy;
514					OPJ_INT32 prci, prcj;
515					res = &comp->resolutions[pi->resno];
516					levelno = comp->numresolutions - 1 - pi->resno;
517					trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
518					try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
519					trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
520					try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
521					rpx = res->pdx + levelno;
522					rpy = res->pdy + levelno;
523					if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
524						continue;
525					}
526					if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
527						continue;
528					}
529
530					if ((res->pw==0)||(res->ph==0)) continue;
531
532					if ((trx0==trx1)||(try0==try1)) continue;
533
534					prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
535						 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
536					prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
537						 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
538					pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
539					for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
540						index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
541						if (!pi->include[index]) {
542							pi->include[index] = 1;
543							return OPJ_TRUE;
544						}
545LABEL_SKIP:;
546					}
547				}
548			}
549		}
550	}
551
552	return OPJ_FALSE;
553}
554
555void opj_get_encoding_parameters(	const opj_image_t *p_image,
556                                    const opj_cp_t *p_cp,
557                                    OPJ_UINT32 p_tileno,
558                                    OPJ_INT32 * p_tx0,
559                                    OPJ_INT32  * p_tx1,
560                                    OPJ_INT32  * p_ty0,
561                                    OPJ_INT32  * p_ty1,
562                                    OPJ_UINT32 * p_dx_min,
563                                    OPJ_UINT32 * p_dy_min,
564                                    OPJ_UINT32 * p_max_prec,
565                                    OPJ_UINT32 * p_max_res )
566{
567	/* loop */
568	OPJ_UINT32  compno, resno;
569	/* pointers */
570	const opj_tcp_t *l_tcp = 00;
571	const opj_tccp_t * l_tccp = 00;
572	const opj_image_comp_t * l_img_comp = 00;
573
574	/* position in x and y of tile */
575	OPJ_UINT32 p, q;
576
577	/* preconditions */
578	assert(p_cp != 00);
579	assert(p_image != 00);
580	assert(p_tileno < p_cp->tw * p_cp->th);
581
582	/* initializations */
583	l_tcp = &p_cp->tcps [p_tileno];
584	l_img_comp = p_image->comps;
585	l_tccp = l_tcp->tccps;
586
587	/* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
588	p = p_tileno % p_cp->tw;
589	q = p_tileno / p_cp->tw;
590
591	/* find extent of tile */
592	*p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
593	*p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
594	*p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
595	*p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)p_image->y1);
596
597	/* max precision is 0 (can only grow) */
598	*p_max_prec = 0;
599	*p_max_res = 0;
600
601	/* take the largest value for dx_min and dy_min */
602	*p_dx_min = 0x7fffffff;
603	*p_dy_min  = 0x7fffffff;
604
605	for (compno = 0; compno < p_image->numcomps; ++compno) {
606		/* arithmetic variables to calculate */
607		OPJ_UINT32 l_level_no;
608		OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
609		OPJ_INT32 l_px0, l_py0, l_px1, py1;
610		OPJ_UINT32 l_pdx, l_pdy;
611		OPJ_UINT32 l_pw, l_ph;
612		OPJ_UINT32 l_product;
613		OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
614
615		l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
616		l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
617		l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
618		l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
619
620		if (l_tccp->numresolutions > *p_max_res) {
621			*p_max_res = l_tccp->numresolutions;
622		}
623
624		/* use custom size for precincts */
625		for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
626			OPJ_UINT32 l_dx, l_dy;
627
628			/* precinct width and height */
629			l_pdx = l_tccp->prcw[resno];
630			l_pdy = l_tccp->prch[resno];
631
632			l_dx = l_img_comp->dx * (1u << (l_pdx + l_tccp->numresolutions - 1 - resno));
633			l_dy = l_img_comp->dy * (1u << (l_pdy + l_tccp->numresolutions - 1 - resno));
634
635			/* take the minimum size for dx for each comp and resolution */
636			*p_dx_min = opj_uint_min(*p_dx_min, l_dx);
637			*p_dy_min = opj_uint_min(*p_dy_min, l_dy);
638
639			/* various calculations of extents */
640			l_level_no = l_tccp->numresolutions - 1 - resno;
641
642			l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
643			l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
644			l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
645			l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
646
647			l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
648			l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
649			l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
650
651			py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
652
653			l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
654			l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
655
656			l_product = l_pw * l_ph;
657
658			/* update precision */
659			if (l_product > *p_max_prec) {
660				*p_max_prec = l_product;
661			}
662		}
663		++l_img_comp;
664		++l_tccp;
665	}
666}
667
668
669void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
670                                        const opj_cp_t *p_cp,
671                                        OPJ_UINT32 tileno,
672                                        OPJ_INT32 * p_tx0,
673                                        OPJ_INT32 * p_tx1,
674                                        OPJ_INT32 * p_ty0,
675                                        OPJ_INT32 * p_ty1,
676                                        OPJ_UINT32 * p_dx_min,
677                                        OPJ_UINT32 * p_dy_min,
678                                        OPJ_UINT32 * p_max_prec,
679                                        OPJ_UINT32 * p_max_res,
680                                        OPJ_UINT32 ** p_resolutions )
681{
682	/* loop*/
683	OPJ_UINT32 compno, resno;
684
685	/* pointers*/
686	const opj_tcp_t *tcp = 00;
687	const opj_tccp_t * l_tccp = 00;
688	const opj_image_comp_t * l_img_comp = 00;
689
690	/* to store l_dx, l_dy, w and h for each resolution and component.*/
691	OPJ_UINT32 * lResolutionPtr;
692
693	/* position in x and y of tile*/
694	OPJ_UINT32 p, q;
695
696	/* preconditions in debug*/
697	assert(p_cp != 00);
698	assert(p_image != 00);
699	assert(tileno < p_cp->tw * p_cp->th);
700
701	/* initializations*/
702	tcp = &p_cp->tcps [tileno];
703	l_tccp = tcp->tccps;
704	l_img_comp = p_image->comps;
705
706	/* position in x and y of tile*/
707	p = tileno % p_cp->tw;
708	q = tileno / p_cp->tw;
709
710	/* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
711	*p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
712	*p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
713	*p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
714	*p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)p_image->y1);
715
716	/* max precision and resolution is 0 (can only grow)*/
717	*p_max_prec = 0;
718	*p_max_res = 0;
719
720	/* take the largest value for dx_min and dy_min*/
721	*p_dx_min = 0x7fffffff;
722	*p_dy_min = 0x7fffffff;
723
724	for (compno = 0; compno < p_image->numcomps; ++compno) {
725		/* aritmetic variables to calculate*/
726		OPJ_UINT32 l_level_no;
727		OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
728		OPJ_INT32 l_px0, l_py0, l_px1, py1;
729		OPJ_UINT32 l_product;
730		OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
731		OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
732
733		lResolutionPtr = p_resolutions[compno];
734
735		l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
736		l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
737		l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
738		l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
739
740		if (l_tccp->numresolutions > *p_max_res) {
741			*p_max_res = l_tccp->numresolutions;
742		}
743
744		/* use custom size for precincts*/
745		l_level_no = l_tccp->numresolutions - 1;
746		for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
747			OPJ_UINT32 l_dx, l_dy;
748
749			/* precinct width and height*/
750			l_pdx = l_tccp->prcw[resno];
751			l_pdy = l_tccp->prch[resno];
752			*lResolutionPtr++ = l_pdx;
753			*lResolutionPtr++ = l_pdy;
754			l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
755			l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
756			/* take the minimum size for l_dx for each comp and resolution*/
757			*p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dx_min, (OPJ_INT32)l_dx);
758			*p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dy_min, (OPJ_INT32)l_dy);
759
760			/* various calculations of extents*/
761			l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
762			l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
763			l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
764			l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
765			l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
766			l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
767			l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
768			py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
769			l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
770			l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
771			*lResolutionPtr++ = l_pw;
772			*lResolutionPtr++ = l_ph;
773			l_product = l_pw * l_ph;
774
775            /* update precision*/
776			if (l_product > *p_max_prec) {
777				*p_max_prec = l_product;
778			}
779
780			--l_level_no;
781		}
782		++l_tccp;
783		++l_img_comp;
784	}
785}
786
787opj_pi_iterator_t * opj_pi_create(	const opj_image_t *image,
788                                    const opj_cp_t *cp,
789                                    OPJ_UINT32 tileno )
790{
791	/* loop*/
792	OPJ_UINT32 pino, compno;
793	/* number of poc in the p_pi*/
794	OPJ_UINT32 l_poc_bound;
795
796	/* pointers to tile coding parameters and components.*/
797	opj_pi_iterator_t *l_pi = 00;
798	opj_tcp_t *tcp = 00;
799	const opj_tccp_t *tccp = 00;
800
801	/* current packet iterator being allocated*/
802	opj_pi_iterator_t *l_current_pi = 00;
803
804	/* preconditions in debug*/
805	assert(cp != 00);
806	assert(image != 00);
807	assert(tileno < cp->tw * cp->th);
808
809	/* initializations*/
810	tcp = &cp->tcps[tileno];
811	l_poc_bound = tcp->numpocs+1;
812
813	/* memory allocations*/
814	l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
815	if (!l_pi) {
816		return NULL;
817	}
818	memset(l_pi,0,l_poc_bound * sizeof(opj_pi_iterator_t));
819
820	l_current_pi = l_pi;
821	for (pino = 0; pino < l_poc_bound ; ++pino) {
822
823		l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
824		if (! l_current_pi->comps) {
825			opj_pi_destroy(l_pi, l_poc_bound);
826			return NULL;
827		}
828
829		l_current_pi->numcomps = image->numcomps;
830		memset(l_current_pi->comps,0,image->numcomps * sizeof(opj_pi_comp_t));
831
832		for (compno = 0; compno < image->numcomps; ++compno) {
833			opj_pi_comp_t *comp = &l_current_pi->comps[compno];
834
835			tccp = &tcp->tccps[compno];
836
837			comp->resolutions = (opj_pi_resolution_t*) opj_malloc(tccp->numresolutions * sizeof(opj_pi_resolution_t));
838			if (!comp->resolutions) {
839				opj_pi_destroy(l_pi, l_poc_bound);
840				return 00;
841			}
842
843			comp->numresolutions = tccp->numresolutions;
844			memset(comp->resolutions,0,tccp->numresolutions * sizeof(opj_pi_resolution_t));
845		}
846		++l_current_pi;
847	}
848	return l_pi;
849}
850
851void opj_pi_update_encode_poc_and_final (   opj_cp_t *p_cp,
852                                            OPJ_UINT32 p_tileno,
853                                            OPJ_INT32 p_tx0,
854                                            OPJ_INT32 p_tx1,
855                                            OPJ_INT32 p_ty0,
856                                            OPJ_INT32 p_ty1,
857                                            OPJ_UINT32 p_max_prec,
858                                            OPJ_UINT32 p_max_res,
859                                            OPJ_UINT32 p_dx_min,
860                                            OPJ_UINT32 p_dy_min)
861{
862	/* loop*/
863	OPJ_UINT32 pino;
864	/* tile coding parameter*/
865	opj_tcp_t *l_tcp = 00;
866	/* current poc being updated*/
867	opj_poc_t * l_current_poc = 00;
868
869	/* number of pocs*/
870	OPJ_UINT32 l_poc_bound;
871
872    OPJ_ARG_NOT_USED(p_max_res);
873
874	/* preconditions in debug*/
875	assert(p_cp != 00);
876	assert(p_tileno < p_cp->tw * p_cp->th);
877
878	/* initializations*/
879	l_tcp = &p_cp->tcps [p_tileno];
880	/* number of iterations in the loop */
881	l_poc_bound = l_tcp->numpocs+1;
882
883	/* start at first element, and to make sure the compiler will not make a calculation each time in the loop
884	   store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
885	l_current_poc = l_tcp->pocs;
886
887	l_current_poc->compS = l_current_poc->compno0;
888	l_current_poc->compE = l_current_poc->compno1;
889	l_current_poc->resS = l_current_poc->resno0;
890	l_current_poc->resE = l_current_poc->resno1;
891	l_current_poc->layE = l_current_poc->layno1;
892
893	/* special treatment for the first element*/
894	l_current_poc->layS = 0;
895	l_current_poc->prg  = l_current_poc->prg1;
896	l_current_poc->prcS = 0;
897
898	l_current_poc->prcE = p_max_prec;
899	l_current_poc->txS = (OPJ_UINT32)p_tx0;
900	l_current_poc->txE = (OPJ_UINT32)p_tx1;
901	l_current_poc->tyS = (OPJ_UINT32)p_ty0;
902	l_current_poc->tyE = (OPJ_UINT32)p_ty1;
903	l_current_poc->dx = p_dx_min;
904	l_current_poc->dy = p_dy_min;
905
906	++ l_current_poc;
907	for (pino = 1;pino < l_poc_bound ; ++pino) {
908		l_current_poc->compS = l_current_poc->compno0;
909		l_current_poc->compE= l_current_poc->compno1;
910		l_current_poc->resS = l_current_poc->resno0;
911		l_current_poc->resE = l_current_poc->resno1;
912		l_current_poc->layE = l_current_poc->layno1;
913		l_current_poc->prg  = l_current_poc->prg1;
914		l_current_poc->prcS = 0;
915		/* special treatment here different from the first element*/
916		l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
917
918		l_current_poc->prcE = p_max_prec;
919		l_current_poc->txS = (OPJ_UINT32)p_tx0;
920		l_current_poc->txE = (OPJ_UINT32)p_tx1;
921		l_current_poc->tyS = (OPJ_UINT32)p_ty0;
922		l_current_poc->tyE = (OPJ_UINT32)p_ty1;
923		l_current_poc->dx = p_dx_min;
924		l_current_poc->dy = p_dy_min;
925		++ l_current_poc;
926	}
927}
928
929void opj_pi_update_encode_not_poc (	opj_cp_t *p_cp,
930                                    OPJ_UINT32 p_num_comps,
931                                    OPJ_UINT32 p_tileno,
932                                    OPJ_INT32 p_tx0,
933                                    OPJ_INT32 p_tx1,
934                                    OPJ_INT32 p_ty0,
935                                    OPJ_INT32 p_ty1,
936                                    OPJ_UINT32 p_max_prec,
937                                    OPJ_UINT32 p_max_res,
938                                    OPJ_UINT32 p_dx_min,
939                                    OPJ_UINT32 p_dy_min)
940{
941	/* loop*/
942	OPJ_UINT32 pino;
943	/* tile coding parameter*/
944	opj_tcp_t *l_tcp = 00;
945	/* current poc being updated*/
946	opj_poc_t * l_current_poc = 00;
947	/* number of pocs*/
948	OPJ_UINT32 l_poc_bound;
949
950	/* preconditions in debug*/
951	assert(p_cp != 00);
952	assert(p_tileno < p_cp->tw * p_cp->th);
953
954	/* initializations*/
955	l_tcp = &p_cp->tcps [p_tileno];
956
957	/* number of iterations in the loop */
958	l_poc_bound = l_tcp->numpocs+1;
959
960	/* start at first element, and to make sure the compiler will not make a calculation each time in the loop
961	   store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
962	l_current_poc = l_tcp->pocs;
963
964	for (pino = 0; pino < l_poc_bound ; ++pino) {
965		l_current_poc->compS = 0;
966		l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
967		l_current_poc->resS = 0;
968		l_current_poc->resE = p_max_res;
969		l_current_poc->layS = 0;
970		l_current_poc->layE = l_tcp->numlayers;
971		l_current_poc->prg  = l_tcp->prg;
972		l_current_poc->prcS = 0;
973		l_current_poc->prcE = p_max_prec;
974		l_current_poc->txS = (OPJ_UINT32)p_tx0;
975		l_current_poc->txE = (OPJ_UINT32)p_tx1;
976		l_current_poc->tyS = (OPJ_UINT32)p_ty0;
977		l_current_poc->tyE = (OPJ_UINT32)p_ty1;
978		l_current_poc->dx = p_dx_min;
979		l_current_poc->dy = p_dy_min;
980		++ l_current_poc;
981	}
982}
983
984void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
985                               opj_tcp_t * p_tcp,
986                               OPJ_UINT32 p_max_precision,
987                               OPJ_UINT32 p_max_res)
988{
989	/* loop*/
990	OPJ_UINT32 pino;
991
992	/* encoding prameters to set*/
993	OPJ_UINT32 l_bound;
994
995	opj_pi_iterator_t * l_current_pi = 00;
996	opj_poc_t* l_current_poc = 0;
997
998    OPJ_ARG_NOT_USED(p_max_res);
999
1000	/* preconditions in debug*/
1001	assert(p_pi != 00);
1002	assert(p_tcp != 00);
1003
1004	/* initializations*/
1005	l_bound = p_tcp->numpocs+1;
1006	l_current_pi = p_pi;
1007	l_current_poc = p_tcp->pocs;
1008
1009	for	(pino = 0;pino<l_bound;++pino) {
1010		l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
1011		l_current_pi->first = 1;
1012
1013		l_current_pi->poc.resno0 = l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
1014		l_current_pi->poc.compno0 = l_current_poc->compno0; /* Component Index #0 (Start) */
1015		l_current_pi->poc.layno0 = 0;
1016		l_current_pi->poc.precno0 = 0;
1017		l_current_pi->poc.resno1 = l_current_poc->resno1; /* Resolution Level Index #0 (End) */
1018		l_current_pi->poc.compno1 = l_current_poc->compno1; /* Component Index #0 (End) */
1019		l_current_pi->poc.layno1 = l_current_poc->layno1; /* Layer Index #0 (End) */
1020		l_current_pi->poc.precno1 = p_max_precision;
1021		++l_current_pi;
1022		++l_current_poc;
1023	}
1024}
1025
1026void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
1027                                   opj_tcp_t * p_tcp,
1028                                   OPJ_UINT32 p_max_precision,
1029                                   OPJ_UINT32 p_max_res)
1030{
1031	/* loop*/
1032	OPJ_UINT32 pino;
1033
1034	/* encoding prameters to set*/
1035	OPJ_UINT32 l_bound;
1036
1037	opj_pi_iterator_t * l_current_pi = 00;
1038	/* preconditions in debug*/
1039	assert(p_tcp != 00);
1040	assert(p_pi != 00);
1041
1042	/* initializations*/
1043	l_bound = p_tcp->numpocs+1;
1044	l_current_pi = p_pi;
1045
1046	for (pino = 0;pino<l_bound;++pino) {
1047		l_current_pi->poc.prg = p_tcp->prg;
1048		l_current_pi->first = 1;
1049		l_current_pi->poc.resno0 = 0;
1050		l_current_pi->poc.compno0 = 0;
1051		l_current_pi->poc.layno0 = 0;
1052		l_current_pi->poc.precno0 = 0;
1053		l_current_pi->poc.resno1 = p_max_res;
1054		l_current_pi->poc.compno1 = l_current_pi->numcomps;
1055		l_current_pi->poc.layno1 = p_tcp->numlayers;
1056		l_current_pi->poc.precno1 = p_max_precision;
1057		++l_current_pi;
1058	}
1059}
1060
1061
1062
1063OPJ_BOOL opj_pi_check_next_level(	OPJ_INT32 pos,
1064								opj_cp_t *cp,
1065								OPJ_UINT32 tileno,
1066								OPJ_UINT32 pino,
1067								const OPJ_CHAR *prog)
1068{
1069	OPJ_INT32 i;
1070	opj_tcp_t *tcps =&cp->tcps[tileno];
1071	opj_poc_t *tcp = &tcps->pocs[pino];
1072
1073	if(pos>=0){
1074		for(i=pos;pos>=0;i--){
1075			switch(prog[i]){
1076		    case 'R':
1077			    if(tcp->res_t==tcp->resE){
1078				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1079					    return OPJ_TRUE;
1080				    }else{
1081					    return OPJ_FALSE;
1082				    }
1083			    }else{
1084				    return OPJ_TRUE;
1085			    }
1086			    break;
1087		    case 'C':
1088			    if(tcp->comp_t==tcp->compE){
1089				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1090					    return OPJ_TRUE;
1091				    }else{
1092					    return OPJ_FALSE;
1093				    }
1094			    }else{
1095				    return OPJ_TRUE;
1096			    }
1097			    break;
1098		    case 'L':
1099			    if(tcp->lay_t==tcp->layE){
1100				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1101					    return OPJ_TRUE;
1102				    }else{
1103					    return OPJ_FALSE;
1104				    }
1105			    }else{
1106				    return OPJ_TRUE;
1107			    }
1108			    break;
1109		    case 'P':
1110			    switch(tcp->prg){
1111				    case OPJ_LRCP||OPJ_RLCP:
1112					    if(tcp->prc_t == tcp->prcE){
1113						    if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1114							    return OPJ_TRUE;
1115						    }else{
1116							    return OPJ_FALSE;
1117						    }
1118					    }else{
1119						    return OPJ_TRUE;
1120					    }
1121					    break;
1122			    default:
1123				    if(tcp->tx0_t == tcp->txE){
1124					    /*TY*/
1125					    if(tcp->ty0_t == tcp->tyE){
1126						    if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1127							    return OPJ_TRUE;
1128						    }else{
1129							    return OPJ_FALSE;
1130						    }
1131					    }else{
1132						    return OPJ_TRUE;
1133					    }/*TY*/
1134				    }else{
1135					    return OPJ_TRUE;
1136				    }
1137				    break;
1138			    }/*end case P*/
1139		    }/*end switch*/
1140		}/*end for*/
1141	}/*end if*/
1142	return OPJ_FALSE;
1143}
1144
1145
1146/*
1147==========================================================
1148   Packet iterator interface
1149==========================================================
1150*/
1151opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1152										opj_cp_t *p_cp,
1153										OPJ_UINT32 p_tile_no)
1154{
1155	/* loop */
1156	OPJ_UINT32 pino;
1157	OPJ_UINT32 compno, resno;
1158
1159	/* to store w, h, dx and dy fro all components and resolutions */
1160	OPJ_UINT32 * l_tmp_data;
1161	OPJ_UINT32 ** l_tmp_ptr;
1162
1163	/* encoding prameters to set */
1164	OPJ_UINT32 l_max_res;
1165	OPJ_UINT32 l_max_prec;
1166	OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1167	OPJ_UINT32 l_dx_min,l_dy_min;
1168	OPJ_UINT32 l_bound;
1169	OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1170	OPJ_UINT32 l_data_stride;
1171
1172	/* pointers */
1173	opj_pi_iterator_t *l_pi = 00;
1174	opj_tcp_t *l_tcp = 00;
1175	const opj_tccp_t *l_tccp = 00;
1176	opj_pi_comp_t *l_current_comp = 00;
1177	opj_image_comp_t * l_img_comp = 00;
1178	opj_pi_iterator_t * l_current_pi = 00;
1179	OPJ_UINT32 * l_encoding_value_ptr = 00;
1180
1181	/* preconditions in debug */
1182	assert(p_cp != 00);
1183	assert(p_image != 00);
1184	assert(p_tile_no < p_cp->tw * p_cp->th);
1185
1186	/* initializations */
1187	l_tcp = &p_cp->tcps[p_tile_no];
1188	l_bound = l_tcp->numpocs+1;
1189
1190	l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1191	l_tmp_data = (OPJ_UINT32*)opj_malloc(
1192		l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1193	if
1194		(! l_tmp_data)
1195	{
1196		return 00;
1197	}
1198	l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1199		p_image->numcomps * sizeof(OPJ_UINT32 *));
1200	if
1201		(! l_tmp_ptr)
1202	{
1203		opj_free(l_tmp_data);
1204		return 00;
1205	}
1206
1207	/* memory allocation for pi */
1208	l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1209	if (!l_pi) {
1210		opj_free(l_tmp_data);
1211		opj_free(l_tmp_ptr);
1212		return 00;
1213	}
1214
1215	l_encoding_value_ptr = l_tmp_data;
1216	/* update pointer array */
1217	for
1218		(compno = 0; compno < p_image->numcomps; ++compno)
1219	{
1220		l_tmp_ptr[compno] = l_encoding_value_ptr;
1221		l_encoding_value_ptr += l_data_stride;
1222	}
1223	/* get encoding parameters */
1224	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);
1225
1226	/* step calculations */
1227	l_step_p = 1;
1228	l_step_c = l_max_prec * l_step_p;
1229	l_step_r = p_image->numcomps * l_step_c;
1230	l_step_l = l_max_res * l_step_r;
1231
1232	/* set values for first packet iterator */
1233	l_current_pi = l_pi;
1234
1235	/* memory allocation for include */
1236	l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
1237	if
1238		(!l_current_pi->include)
1239	{
1240		opj_free(l_tmp_data);
1241		opj_free(l_tmp_ptr);
1242		opj_pi_destroy(l_pi, l_bound);
1243		return 00;
1244	}
1245	memset(l_current_pi->include,0, (l_tcp->numlayers + 1) * l_step_l* sizeof(OPJ_INT16));
1246
1247	/* special treatment for the first packet iterator */
1248	l_current_comp = l_current_pi->comps;
1249	l_img_comp = p_image->comps;
1250	l_tccp = l_tcp->tccps;
1251
1252	l_current_pi->tx0 = l_tx0;
1253	l_current_pi->ty0 = l_ty0;
1254	l_current_pi->tx1 = l_tx1;
1255	l_current_pi->ty1 = l_ty1;
1256
1257	/*l_current_pi->dx = l_img_comp->dx;*/
1258	/*l_current_pi->dy = l_img_comp->dy;*/
1259
1260	l_current_pi->step_p = l_step_p;
1261	l_current_pi->step_c = l_step_c;
1262	l_current_pi->step_r = l_step_r;
1263	l_current_pi->step_l = l_step_l;
1264
1265	/* allocation for components and number of components has already been calculated by opj_pi_create */
1266	for
1267		(compno = 0; compno < l_current_pi->numcomps; ++compno)
1268	{
1269		opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1270		l_encoding_value_ptr = l_tmp_ptr[compno];
1271
1272		l_current_comp->dx = l_img_comp->dx;
1273		l_current_comp->dy = l_img_comp->dy;
1274		/* resolutions have already been initialized */
1275		for
1276			(resno = 0; resno < l_current_comp->numresolutions; resno++)
1277		{
1278			l_res->pdx = *(l_encoding_value_ptr++);
1279			l_res->pdy = *(l_encoding_value_ptr++);
1280			l_res->pw =  *(l_encoding_value_ptr++);
1281			l_res->ph =  *(l_encoding_value_ptr++);
1282			++l_res;
1283		}
1284		++l_current_comp;
1285		++l_img_comp;
1286		++l_tccp;
1287	}
1288	++l_current_pi;
1289
1290	for (pino = 1 ; pino<l_bound ; ++pino )
1291	{
1292		l_current_comp = l_current_pi->comps;
1293		l_img_comp = p_image->comps;
1294		l_tccp = l_tcp->tccps;
1295
1296		l_current_pi->tx0 = l_tx0;
1297		l_current_pi->ty0 = l_ty0;
1298		l_current_pi->tx1 = l_tx1;
1299		l_current_pi->ty1 = l_ty1;
1300		/*l_current_pi->dx = l_dx_min;*/
1301		/*l_current_pi->dy = l_dy_min;*/
1302		l_current_pi->step_p = l_step_p;
1303		l_current_pi->step_c = l_step_c;
1304		l_current_pi->step_r = l_step_r;
1305		l_current_pi->step_l = l_step_l;
1306
1307		/* allocation for components and number of components has already been calculated by opj_pi_create */
1308		for
1309			(compno = 0; compno < l_current_pi->numcomps; ++compno)
1310		{
1311			opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1312			l_encoding_value_ptr = l_tmp_ptr[compno];
1313
1314			l_current_comp->dx = l_img_comp->dx;
1315			l_current_comp->dy = l_img_comp->dy;
1316			/* resolutions have already been initialized */
1317			for
1318				(resno = 0; resno < l_current_comp->numresolutions; resno++)
1319			{
1320				l_res->pdx = *(l_encoding_value_ptr++);
1321				l_res->pdy = *(l_encoding_value_ptr++);
1322				l_res->pw =  *(l_encoding_value_ptr++);
1323				l_res->ph =  *(l_encoding_value_ptr++);
1324				++l_res;
1325			}
1326			++l_current_comp;
1327			++l_img_comp;
1328			++l_tccp;
1329		}
1330		/* special treatment*/
1331		l_current_pi->include = (l_current_pi-1)->include;
1332		++l_current_pi;
1333	}
1334	opj_free(l_tmp_data);
1335	l_tmp_data = 00;
1336	opj_free(l_tmp_ptr);
1337	l_tmp_ptr = 00;
1338	if
1339		(l_tcp->POC)
1340	{
1341		opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
1342	}
1343	else
1344	{
1345		opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
1346	}
1347	return l_pi;
1348}
1349
1350
1351
1352opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1353                                            opj_cp_t *p_cp,
1354                                            OPJ_UINT32 p_tile_no,
1355                                            J2K_T2_MODE p_t2_mode )
1356{
1357	/* loop*/
1358	OPJ_UINT32 pino;
1359	OPJ_UINT32 compno, resno;
1360
1361	/* to store w, h, dx and dy fro all components and resolutions*/
1362	OPJ_UINT32 * l_tmp_data;
1363	OPJ_UINT32 ** l_tmp_ptr;
1364
1365	/* encoding prameters to set*/
1366	OPJ_UINT32 l_max_res;
1367	OPJ_UINT32 l_max_prec;
1368	OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1369	OPJ_UINT32 l_dx_min,l_dy_min;
1370	OPJ_UINT32 l_bound;
1371	OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1372	OPJ_UINT32 l_data_stride;
1373
1374	/* pointers*/
1375	opj_pi_iterator_t *l_pi = 00;
1376	opj_tcp_t *l_tcp = 00;
1377	const opj_tccp_t *l_tccp = 00;
1378	opj_pi_comp_t *l_current_comp = 00;
1379	opj_image_comp_t * l_img_comp = 00;
1380	opj_pi_iterator_t * l_current_pi = 00;
1381	OPJ_UINT32 * l_encoding_value_ptr = 00;
1382
1383	/* preconditions in debug*/
1384	assert(p_cp != 00);
1385	assert(p_image != 00);
1386	assert(p_tile_no < p_cp->tw * p_cp->th);
1387
1388	/* initializations*/
1389	l_tcp = &p_cp->tcps[p_tile_no];
1390	l_bound = l_tcp->numpocs+1;
1391
1392	l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1393	l_tmp_data = (OPJ_UINT32*)opj_malloc(
1394		l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1395	if (! l_tmp_data) {
1396		return 00;
1397	}
1398
1399	l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1400		p_image->numcomps * sizeof(OPJ_UINT32 *));
1401	if (! l_tmp_ptr) {
1402		opj_free(l_tmp_data);
1403		return 00;
1404	}
1405
1406	/* memory allocation for pi*/
1407	l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
1408	if (!l_pi) {
1409		opj_free(l_tmp_data);
1410		opj_free(l_tmp_ptr);
1411		return 00;
1412	}
1413
1414	l_encoding_value_ptr = l_tmp_data;
1415	/* update pointer array*/
1416	for (compno = 0; compno < p_image->numcomps; ++compno) {
1417		l_tmp_ptr[compno] = l_encoding_value_ptr;
1418		l_encoding_value_ptr += l_data_stride;
1419	}
1420
1421	/* get encoding parameters*/
1422	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);
1423
1424	/* step calculations*/
1425	l_step_p = 1;
1426	l_step_c = l_max_prec * l_step_p;
1427	l_step_r = p_image->numcomps * l_step_c;
1428	l_step_l = l_max_res * l_step_r;
1429
1430	/* set values for first packet iterator*/
1431	l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
1432	l_current_pi = l_pi;
1433
1434	/* memory allocation for include*/
1435	l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
1436	if (!l_current_pi->include) {
1437		opj_free(l_tmp_data);
1438		opj_free(l_tmp_ptr);
1439		opj_pi_destroy(l_pi, l_bound);
1440		return 00;
1441	}
1442	memset(l_current_pi->include,0,l_tcp->numlayers * l_step_l* sizeof(OPJ_INT16));
1443
1444	/* special treatment for the first packet iterator*/
1445	l_current_comp = l_current_pi->comps;
1446	l_img_comp = p_image->comps;
1447	l_tccp = l_tcp->tccps;
1448	l_current_pi->tx0 = l_tx0;
1449	l_current_pi->ty0 = l_ty0;
1450	l_current_pi->tx1 = l_tx1;
1451	l_current_pi->ty1 = l_ty1;
1452	l_current_pi->dx = l_dx_min;
1453	l_current_pi->dy = l_dy_min;
1454	l_current_pi->step_p = l_step_p;
1455	l_current_pi->step_c = l_step_c;
1456	l_current_pi->step_r = l_step_r;
1457	l_current_pi->step_l = l_step_l;
1458
1459	/* allocation for components and number of components has already been calculated by opj_pi_create */
1460	for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1461		opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1462		l_encoding_value_ptr = l_tmp_ptr[compno];
1463
1464		l_current_comp->dx = l_img_comp->dx;
1465		l_current_comp->dy = l_img_comp->dy;
1466
1467		/* resolutions have already been initialized */
1468		for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1469			l_res->pdx = *(l_encoding_value_ptr++);
1470			l_res->pdy = *(l_encoding_value_ptr++);
1471			l_res->pw =  *(l_encoding_value_ptr++);
1472			l_res->ph =  *(l_encoding_value_ptr++);
1473			++l_res;
1474		}
1475
1476		++l_current_comp;
1477		++l_img_comp;
1478		++l_tccp;
1479	}
1480	++l_current_pi;
1481
1482	for (pino = 1 ; pino<l_bound ; ++pino ) {
1483		l_current_comp = l_current_pi->comps;
1484		l_img_comp = p_image->comps;
1485		l_tccp = l_tcp->tccps;
1486
1487		l_current_pi->tx0 = l_tx0;
1488		l_current_pi->ty0 = l_ty0;
1489		l_current_pi->tx1 = l_tx1;
1490		l_current_pi->ty1 = l_ty1;
1491		l_current_pi->dx = l_dx_min;
1492		l_current_pi->dy = l_dy_min;
1493		l_current_pi->step_p = l_step_p;
1494		l_current_pi->step_c = l_step_c;
1495		l_current_pi->step_r = l_step_r;
1496		l_current_pi->step_l = l_step_l;
1497
1498		/* allocation for components and number of components has already been calculated by opj_pi_create */
1499		for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1500			opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1501			l_encoding_value_ptr = l_tmp_ptr[compno];
1502
1503			l_current_comp->dx = l_img_comp->dx;
1504			l_current_comp->dy = l_img_comp->dy;
1505			/* resolutions have already been initialized */
1506			for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1507				l_res->pdx = *(l_encoding_value_ptr++);
1508				l_res->pdy = *(l_encoding_value_ptr++);
1509				l_res->pw =  *(l_encoding_value_ptr++);
1510				l_res->ph =  *(l_encoding_value_ptr++);
1511				++l_res;
1512			}
1513			++l_current_comp;
1514			++l_img_comp;
1515			++l_tccp;
1516		}
1517
1518		/* special treatment*/
1519		l_current_pi->include = (l_current_pi-1)->include;
1520		++l_current_pi;
1521	}
1522
1523	opj_free(l_tmp_data);
1524	l_tmp_data = 00;
1525	opj_free(l_tmp_ptr);
1526	l_tmp_ptr = 00;
1527
1528	if (l_tcp->POC && ( p_cp->m_specific_param.m_enc.m_cinema || p_t2_mode == FINAL_PASS)) {
1529		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);
1530	}
1531	else {
1532		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);
1533	}
1534
1535	return l_pi;
1536}
1537
1538void opj_pi_create_encode( 	opj_pi_iterator_t *pi,
1539							opj_cp_t *cp,
1540							OPJ_UINT32 tileno,
1541							OPJ_UINT32 pino,
1542							OPJ_UINT32 tpnum,
1543							OPJ_INT32 tppos,
1544							J2K_T2_MODE t2_mode)
1545{
1546	const OPJ_CHAR *prog;
1547	OPJ_INT32 i;
1548	OPJ_UINT32 incr_top=1,resetX=0;
1549	opj_tcp_t *tcps =&cp->tcps[tileno];
1550	opj_poc_t *tcp= &tcps->pocs[pino];
1551
1552	prog = opj_j2k_convert_progression_order(tcp->prg);
1553
1554	pi[pino].first = 1;
1555	pi[pino].poc.prg = tcp->prg;
1556
1557	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))){
1558		pi[pino].poc.resno0 = tcp->resS;
1559		pi[pino].poc.resno1 = tcp->resE;
1560		pi[pino].poc.compno0 = tcp->compS;
1561		pi[pino].poc.compno1 = tcp->compE;
1562		pi[pino].poc.layno0 = tcp->layS;
1563		pi[pino].poc.layno1 = tcp->layE;
1564		pi[pino].poc.precno0 = tcp->prcS;
1565		pi[pino].poc.precno1 = tcp->prcE;
1566		pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1567		pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1568		pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1569		pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1570	}else {
1571		for(i=tppos+1;i<4;i++){
1572			switch(prog[i]){
1573			case 'R':
1574				pi[pino].poc.resno0 = tcp->resS;
1575				pi[pino].poc.resno1 = tcp->resE;
1576				break;
1577			case 'C':
1578				pi[pino].poc.compno0 = tcp->compS;
1579				pi[pino].poc.compno1 = tcp->compE;
1580				break;
1581			case 'L':
1582				pi[pino].poc.layno0 = tcp->layS;
1583				pi[pino].poc.layno1 = tcp->layE;
1584				break;
1585			case 'P':
1586				switch(tcp->prg){
1587				case OPJ_LRCP:
1588				case OPJ_RLCP:
1589					pi[pino].poc.precno0 = tcp->prcS;
1590					pi[pino].poc.precno1 = tcp->prcE;
1591					break;
1592				default:
1593					pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1594					pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1595					pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1596					pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1597					break;
1598				}
1599				break;
1600			}
1601		}
1602
1603		if(tpnum==0){
1604			for(i=tppos;i>=0;i--){
1605				switch(prog[i]){
1606				case 'C':
1607					tcp->comp_t = tcp->compS;
1608					pi[pino].poc.compno0 = tcp->comp_t;
1609					pi[pino].poc.compno1 = tcp->comp_t+1;
1610					tcp->comp_t+=1;
1611					break;
1612				case 'R':
1613					tcp->res_t = tcp->resS;
1614					pi[pino].poc.resno0 = tcp->res_t;
1615					pi[pino].poc.resno1 = tcp->res_t+1;
1616					tcp->res_t+=1;
1617					break;
1618				case 'L':
1619					tcp->lay_t = tcp->layS;
1620					pi[pino].poc.layno0 = tcp->lay_t;
1621					pi[pino].poc.layno1 = tcp->lay_t+1;
1622					tcp->lay_t+=1;
1623					break;
1624				case 'P':
1625					switch(tcp->prg){
1626					case OPJ_LRCP:
1627					case OPJ_RLCP:
1628						tcp->prc_t = tcp->prcS;
1629						pi[pino].poc.precno0 = tcp->prc_t;
1630						pi[pino].poc.precno1 = tcp->prc_t+1;
1631						tcp->prc_t+=1;
1632						break;
1633					default:
1634						tcp->tx0_t = tcp->txS;
1635						tcp->ty0_t = tcp->tyS;
1636						pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1637						pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1638						pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1639						pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1640						tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1641						tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1642						break;
1643					}
1644					break;
1645				}
1646			}
1647			incr_top=1;
1648		}else{
1649			for(i=tppos;i>=0;i--){
1650				switch(prog[i]){
1651				case 'C':
1652					pi[pino].poc.compno0 = tcp->comp_t-1;
1653					pi[pino].poc.compno1 = tcp->comp_t;
1654					break;
1655				case 'R':
1656					pi[pino].poc.resno0 = tcp->res_t-1;
1657					pi[pino].poc.resno1 = tcp->res_t;
1658					break;
1659				case 'L':
1660					pi[pino].poc.layno0 = tcp->lay_t-1;
1661					pi[pino].poc.layno1 = tcp->lay_t;
1662					break;
1663				case 'P':
1664					switch(tcp->prg){
1665					case OPJ_LRCP:
1666					case OPJ_RLCP:
1667						pi[pino].poc.precno0 = tcp->prc_t-1;
1668						pi[pino].poc.precno1 = tcp->prc_t;
1669						break;
1670					default:
1671						pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
1672						pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
1673						pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
1674						pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
1675						break;
1676					}
1677					break;
1678				}
1679				if(incr_top==1){
1680					switch(prog[i]){
1681					case 'R':
1682						if(tcp->res_t==tcp->resE){
1683							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1684								tcp->res_t = tcp->resS;
1685								pi[pino].poc.resno0 = tcp->res_t;
1686								pi[pino].poc.resno1 = tcp->res_t+1;
1687								tcp->res_t+=1;
1688								incr_top=1;
1689							}else{
1690								incr_top=0;
1691							}
1692						}else{
1693							pi[pino].poc.resno0 = tcp->res_t;
1694							pi[pino].poc.resno1 = tcp->res_t+1;
1695							tcp->res_t+=1;
1696							incr_top=0;
1697						}
1698						break;
1699					case 'C':
1700						if(tcp->comp_t ==tcp->compE){
1701							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1702								tcp->comp_t = tcp->compS;
1703								pi[pino].poc.compno0 = tcp->comp_t;
1704								pi[pino].poc.compno1 = tcp->comp_t+1;
1705								tcp->comp_t+=1;
1706								incr_top=1;
1707							}else{
1708								incr_top=0;
1709							}
1710						}else{
1711							pi[pino].poc.compno0 = tcp->comp_t;
1712							pi[pino].poc.compno1 = tcp->comp_t+1;
1713							tcp->comp_t+=1;
1714							incr_top=0;
1715						}
1716						break;
1717					case 'L':
1718						if(tcp->lay_t == tcp->layE){
1719							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1720								tcp->lay_t = tcp->layS;
1721								pi[pino].poc.layno0 = tcp->lay_t;
1722								pi[pino].poc.layno1 = tcp->lay_t+1;
1723								tcp->lay_t+=1;
1724								incr_top=1;
1725							}else{
1726								incr_top=0;
1727							}
1728						}else{
1729							pi[pino].poc.layno0 = tcp->lay_t;
1730							pi[pino].poc.layno1 = tcp->lay_t+1;
1731							tcp->lay_t+=1;
1732							incr_top=0;
1733						}
1734						break;
1735					case 'P':
1736						switch(tcp->prg){
1737						case OPJ_LRCP:
1738						case OPJ_RLCP:
1739							if(tcp->prc_t == tcp->prcE){
1740								if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1741									tcp->prc_t = tcp->prcS;
1742									pi[pino].poc.precno0 = tcp->prc_t;
1743									pi[pino].poc.precno1 = tcp->prc_t+1;
1744									tcp->prc_t+=1;
1745									incr_top=1;
1746								}else{
1747									incr_top=0;
1748								}
1749							}else{
1750								pi[pino].poc.precno0 = tcp->prc_t;
1751								pi[pino].poc.precno1 = tcp->prc_t+1;
1752								tcp->prc_t+=1;
1753								incr_top=0;
1754							}
1755							break;
1756						default:
1757							if(tcp->tx0_t >= tcp->txE){
1758								if(tcp->ty0_t >= tcp->tyE){
1759									if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1760										tcp->ty0_t = tcp->tyS;
1761										pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1762										pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1763										tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1764										incr_top=1;resetX=1;
1765									}else{
1766										incr_top=0;resetX=0;
1767									}
1768								}else{
1769									pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1770									pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1771									tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1772									incr_top=0;resetX=1;
1773								}
1774								if(resetX==1){
1775									tcp->tx0_t = tcp->txS;
1776									pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1777									pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1778									tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1779								}
1780							}else{
1781								pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1782								pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1783								tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1784								incr_top=0;
1785							}
1786							break;
1787						}
1788						break;
1789					}
1790				}
1791			}
1792		}
1793	}
1794}
1795
1796void opj_pi_destroy(opj_pi_iterator_t *p_pi,
1797                    OPJ_UINT32 p_nb_elements)
1798{
1799	OPJ_UINT32 compno, pino;
1800	opj_pi_iterator_t *l_current_pi = p_pi;
1801    if (p_pi) {
1802		if (p_pi->include) {
1803			opj_free(p_pi->include);
1804			p_pi->include = 00;
1805		}
1806		for (pino = 0; pino < p_nb_elements; ++pino){
1807			if(l_current_pi->comps) {
1808				opj_pi_comp_t *l_current_component = l_current_pi->comps;
1809                for (compno = 0; compno < l_current_pi->numcomps; compno++){
1810                    if(l_current_component->resolutions) {
1811						opj_free(l_current_component->resolutions);
1812						l_current_component->resolutions = 00;
1813					}
1814
1815					++l_current_component;
1816				}
1817				opj_free(l_current_pi->comps);
1818				l_current_pi->comps = 0;
1819			}
1820			++l_current_pi;
1821		}
1822		opj_free(p_pi);
1823	}
1824}
1825
1826
1827
1828void opj_pi_update_encoding_parameters(	const opj_image_t *p_image,
1829                                        opj_cp_t *p_cp,
1830                                        OPJ_UINT32 p_tile_no )
1831{
1832	/* encoding parameters to set */
1833	OPJ_UINT32 l_max_res;
1834	OPJ_UINT32 l_max_prec;
1835	OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1836	OPJ_UINT32 l_dx_min,l_dy_min;
1837
1838	/* pointers */
1839	opj_tcp_t *l_tcp = 00;
1840
1841	/* preconditions */
1842	assert(p_cp != 00);
1843	assert(p_image != 00);
1844	assert(p_tile_no < p_cp->tw * p_cp->th);
1845
1846	l_tcp = &(p_cp->tcps[p_tile_no]);
1847
1848	/* get encoding parameters */
1849	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);
1850
1851	if (l_tcp->POC) {
1852		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);
1853	}
1854	else {
1855		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);
1856	}
1857}
1858
1859OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi) {
1860	switch (pi->poc.prg) {
1861		case OPJ_LRCP:
1862			return opj_pi_next_lrcp(pi);
1863		case OPJ_RLCP:
1864			return opj_pi_next_rlcp(pi);
1865		case OPJ_RPCL:
1866			return opj_pi_next_rpcl(pi);
1867		case OPJ_PCRL:
1868			return opj_pi_next_pcrl(pi);
1869		case OPJ_CPRL:
1870			return opj_pi_next_cprl(pi);
1871		case OPJ_PROG_UNKNOWN:
1872			return OPJ_FALSE;
1873	}
1874
1875	return OPJ_FALSE;
1876}
1877