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	/* non-corrected (in regard to image offset) tile offset */
697	OPJ_UINT32 l_tx0, l_ty0;
698
699	/* preconditions in debug*/
700	assert(p_cp != 00);
701	assert(p_image != 00);
702	assert(tileno < p_cp->tw * p_cp->th);
703
704	/* initializations*/
705	tcp = &p_cp->tcps [tileno];
706	l_tccp = tcp->tccps;
707	l_img_comp = p_image->comps;
708
709	/* position in x and y of tile*/
710	p = tileno % p_cp->tw;
711	q = tileno / p_cp->tw;
712
713	/* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
714	l_tx0 = p_cp->tx0 + p * p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
715	*p_tx0 = (OPJ_INT32)opj_uint_max(l_tx0, p_image->x0);
716	*p_tx1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
717	l_ty0 = p_cp->ty0 + q * p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
718	*p_ty0 = (OPJ_INT32)opj_uint_max(l_ty0, p_image->y0);
719	*p_ty1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_ty0, p_cp->tdy), p_image->y1);
720
721	/* max precision and resolution is 0 (can only grow)*/
722	*p_max_prec = 0;
723	*p_max_res = 0;
724
725	/* take the largest value for dx_min and dy_min*/
726	*p_dx_min = 0x7fffffff;
727	*p_dy_min = 0x7fffffff;
728
729	for (compno = 0; compno < p_image->numcomps; ++compno) {
730		/* aritmetic variables to calculate*/
731		OPJ_UINT32 l_level_no;
732		OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
733		OPJ_INT32 l_px0, l_py0, l_px1, py1;
734		OPJ_UINT32 l_product;
735		OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
736		OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
737
738		lResolutionPtr = p_resolutions[compno];
739
740		l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
741		l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
742		l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
743		l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
744
745		if (l_tccp->numresolutions > *p_max_res) {
746			*p_max_res = l_tccp->numresolutions;
747		}
748
749		/* use custom size for precincts*/
750		l_level_no = l_tccp->numresolutions - 1;
751		for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
752			OPJ_UINT32 l_dx, l_dy;
753
754			/* precinct width and height*/
755			l_pdx = l_tccp->prcw[resno];
756			l_pdy = l_tccp->prch[resno];
757			*lResolutionPtr++ = l_pdx;
758			*lResolutionPtr++ = l_pdy;
759			l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
760			l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
761			/* take the minimum size for l_dx for each comp and resolution*/
762			*p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dx_min, (OPJ_INT32)l_dx);
763			*p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dy_min, (OPJ_INT32)l_dy);
764
765			/* various calculations of extents*/
766			l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
767			l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
768			l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
769			l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
770			l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
771			l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
772			l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
773			py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
774			l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
775			l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
776			*lResolutionPtr++ = l_pw;
777			*lResolutionPtr++ = l_ph;
778			l_product = l_pw * l_ph;
779
780            /* update precision*/
781			if (l_product > *p_max_prec) {
782				*p_max_prec = l_product;
783			}
784
785			--l_level_no;
786		}
787		++l_tccp;
788		++l_img_comp;
789	}
790}
791
792opj_pi_iterator_t * opj_pi_create(	const opj_image_t *image,
793                                    const opj_cp_t *cp,
794                                    OPJ_UINT32 tileno )
795{
796	/* loop*/
797	OPJ_UINT32 pino, compno;
798	/* number of poc in the p_pi*/
799	OPJ_UINT32 l_poc_bound;
800
801	/* pointers to tile coding parameters and components.*/
802	opj_pi_iterator_t *l_pi = 00;
803	opj_tcp_t *tcp = 00;
804	const opj_tccp_t *tccp = 00;
805
806	/* current packet iterator being allocated*/
807	opj_pi_iterator_t *l_current_pi = 00;
808
809	/* preconditions in debug*/
810	assert(cp != 00);
811	assert(image != 00);
812	assert(tileno < cp->tw * cp->th);
813
814	/* initializations*/
815	tcp = &cp->tcps[tileno];
816	l_poc_bound = tcp->numpocs+1;
817
818	/* memory allocations*/
819	l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
820	if (!l_pi) {
821		return NULL;
822	}
823
824	l_current_pi = l_pi;
825	for (pino = 0; pino < l_poc_bound ; ++pino) {
826
827		l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
828		if (! l_current_pi->comps) {
829			opj_pi_destroy(l_pi, l_poc_bound);
830			return NULL;
831		}
832
833		l_current_pi->numcomps = image->numcomps;
834
835		for (compno = 0; compno < image->numcomps; ++compno) {
836			opj_pi_comp_t *comp = &l_current_pi->comps[compno];
837
838			tccp = &tcp->tccps[compno];
839
840			comp->resolutions = (opj_pi_resolution_t*) opj_calloc(tccp->numresolutions, sizeof(opj_pi_resolution_t));
841			if (!comp->resolutions) {
842				opj_pi_destroy(l_pi, l_poc_bound);
843				return 00;
844			}
845
846			comp->numresolutions = tccp->numresolutions;
847		}
848		++l_current_pi;
849	}
850	return l_pi;
851}
852
853void opj_pi_update_encode_poc_and_final (   opj_cp_t *p_cp,
854                                            OPJ_UINT32 p_tileno,
855                                            OPJ_INT32 p_tx0,
856                                            OPJ_INT32 p_tx1,
857                                            OPJ_INT32 p_ty0,
858                                            OPJ_INT32 p_ty1,
859                                            OPJ_UINT32 p_max_prec,
860                                            OPJ_UINT32 p_max_res,
861                                            OPJ_UINT32 p_dx_min,
862                                            OPJ_UINT32 p_dy_min)
863{
864	/* loop*/
865	OPJ_UINT32 pino;
866	/* tile coding parameter*/
867	opj_tcp_t *l_tcp = 00;
868	/* current poc being updated*/
869	opj_poc_t * l_current_poc = 00;
870
871	/* number of pocs*/
872	OPJ_UINT32 l_poc_bound;
873
874    OPJ_ARG_NOT_USED(p_max_res);
875
876	/* preconditions in debug*/
877	assert(p_cp != 00);
878	assert(p_tileno < p_cp->tw * p_cp->th);
879
880	/* initializations*/
881	l_tcp = &p_cp->tcps [p_tileno];
882	/* number of iterations in the loop */
883	l_poc_bound = l_tcp->numpocs+1;
884
885	/* start at first element, and to make sure the compiler will not make a calculation each time in the loop
886	   store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
887	l_current_poc = l_tcp->pocs;
888
889	l_current_poc->compS = l_current_poc->compno0;
890	l_current_poc->compE = l_current_poc->compno1;
891	l_current_poc->resS = l_current_poc->resno0;
892	l_current_poc->resE = l_current_poc->resno1;
893	l_current_poc->layE = l_current_poc->layno1;
894
895	/* special treatment for the first element*/
896	l_current_poc->layS = 0;
897	l_current_poc->prg  = l_current_poc->prg1;
898	l_current_poc->prcS = 0;
899
900	l_current_poc->prcE = p_max_prec;
901	l_current_poc->txS = (OPJ_UINT32)p_tx0;
902	l_current_poc->txE = (OPJ_UINT32)p_tx1;
903	l_current_poc->tyS = (OPJ_UINT32)p_ty0;
904	l_current_poc->tyE = (OPJ_UINT32)p_ty1;
905	l_current_poc->dx = p_dx_min;
906	l_current_poc->dy = p_dy_min;
907
908	++ l_current_poc;
909	for (pino = 1;pino < l_poc_bound ; ++pino) {
910		l_current_poc->compS = l_current_poc->compno0;
911		l_current_poc->compE= l_current_poc->compno1;
912		l_current_poc->resS = l_current_poc->resno0;
913		l_current_poc->resE = l_current_poc->resno1;
914		l_current_poc->layE = l_current_poc->layno1;
915		l_current_poc->prg  = l_current_poc->prg1;
916		l_current_poc->prcS = 0;
917		/* special treatment here different from the first element*/
918		l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
919
920		l_current_poc->prcE = p_max_prec;
921		l_current_poc->txS = (OPJ_UINT32)p_tx0;
922		l_current_poc->txE = (OPJ_UINT32)p_tx1;
923		l_current_poc->tyS = (OPJ_UINT32)p_ty0;
924		l_current_poc->tyE = (OPJ_UINT32)p_ty1;
925		l_current_poc->dx = p_dx_min;
926		l_current_poc->dy = p_dy_min;
927		++ l_current_poc;
928	}
929}
930
931void opj_pi_update_encode_not_poc (	opj_cp_t *p_cp,
932                                    OPJ_UINT32 p_num_comps,
933                                    OPJ_UINT32 p_tileno,
934                                    OPJ_INT32 p_tx0,
935                                    OPJ_INT32 p_tx1,
936                                    OPJ_INT32 p_ty0,
937                                    OPJ_INT32 p_ty1,
938                                    OPJ_UINT32 p_max_prec,
939                                    OPJ_UINT32 p_max_res,
940                                    OPJ_UINT32 p_dx_min,
941                                    OPJ_UINT32 p_dy_min)
942{
943	/* loop*/
944	OPJ_UINT32 pino;
945	/* tile coding parameter*/
946	opj_tcp_t *l_tcp = 00;
947	/* current poc being updated*/
948	opj_poc_t * l_current_poc = 00;
949	/* number of pocs*/
950	OPJ_UINT32 l_poc_bound;
951
952	/* preconditions in debug*/
953	assert(p_cp != 00);
954	assert(p_tileno < p_cp->tw * p_cp->th);
955
956	/* initializations*/
957	l_tcp = &p_cp->tcps [p_tileno];
958
959	/* number of iterations in the loop */
960	l_poc_bound = l_tcp->numpocs+1;
961
962	/* start at first element, and to make sure the compiler will not make a calculation each time in the loop
963	   store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
964	l_current_poc = l_tcp->pocs;
965
966	for (pino = 0; pino < l_poc_bound ; ++pino) {
967		l_current_poc->compS = 0;
968		l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
969		l_current_poc->resS = 0;
970		l_current_poc->resE = p_max_res;
971		l_current_poc->layS = 0;
972		l_current_poc->layE = l_tcp->numlayers;
973		l_current_poc->prg  = l_tcp->prg;
974		l_current_poc->prcS = 0;
975		l_current_poc->prcE = p_max_prec;
976		l_current_poc->txS = (OPJ_UINT32)p_tx0;
977		l_current_poc->txE = (OPJ_UINT32)p_tx1;
978		l_current_poc->tyS = (OPJ_UINT32)p_ty0;
979		l_current_poc->tyE = (OPJ_UINT32)p_ty1;
980		l_current_poc->dx = p_dx_min;
981		l_current_poc->dy = p_dy_min;
982		++ l_current_poc;
983	}
984}
985
986void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
987                               opj_tcp_t * p_tcp,
988                               OPJ_UINT32 p_max_precision,
989                               OPJ_UINT32 p_max_res)
990{
991	/* loop*/
992	OPJ_UINT32 pino;
993
994	/* encoding prameters to set*/
995	OPJ_UINT32 l_bound;
996
997	opj_pi_iterator_t * l_current_pi = 00;
998	opj_poc_t* l_current_poc = 0;
999
1000    OPJ_ARG_NOT_USED(p_max_res);
1001
1002	/* preconditions in debug*/
1003	assert(p_pi != 00);
1004	assert(p_tcp != 00);
1005
1006	/* initializations*/
1007	l_bound = p_tcp->numpocs+1;
1008	l_current_pi = p_pi;
1009	l_current_poc = p_tcp->pocs;
1010
1011	for	(pino = 0;pino<l_bound;++pino) {
1012		l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
1013		l_current_pi->first = 1;
1014
1015		l_current_pi->poc.resno0 = l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
1016		l_current_pi->poc.compno0 = l_current_poc->compno0; /* Component Index #0 (Start) */
1017		l_current_pi->poc.layno0 = 0;
1018		l_current_pi->poc.precno0 = 0;
1019		l_current_pi->poc.resno1 = l_current_poc->resno1; /* Resolution Level Index #0 (End) */
1020		l_current_pi->poc.compno1 = l_current_poc->compno1; /* Component Index #0 (End) */
1021		l_current_pi->poc.layno1 = l_current_poc->layno1; /* Layer Index #0 (End) */
1022		l_current_pi->poc.precno1 = p_max_precision;
1023		++l_current_pi;
1024		++l_current_poc;
1025	}
1026}
1027
1028void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
1029                                   opj_tcp_t * p_tcp,
1030                                   OPJ_UINT32 p_max_precision,
1031                                   OPJ_UINT32 p_max_res)
1032{
1033	/* loop*/
1034	OPJ_UINT32 pino;
1035
1036	/* encoding prameters to set*/
1037	OPJ_UINT32 l_bound;
1038
1039	opj_pi_iterator_t * l_current_pi = 00;
1040	/* preconditions in debug*/
1041	assert(p_tcp != 00);
1042	assert(p_pi != 00);
1043
1044	/* initializations*/
1045	l_bound = p_tcp->numpocs+1;
1046	l_current_pi = p_pi;
1047
1048	for (pino = 0;pino<l_bound;++pino) {
1049		l_current_pi->poc.prg = p_tcp->prg;
1050		l_current_pi->first = 1;
1051		l_current_pi->poc.resno0 = 0;
1052		l_current_pi->poc.compno0 = 0;
1053		l_current_pi->poc.layno0 = 0;
1054		l_current_pi->poc.precno0 = 0;
1055		l_current_pi->poc.resno1 = p_max_res;
1056		l_current_pi->poc.compno1 = l_current_pi->numcomps;
1057		l_current_pi->poc.layno1 = p_tcp->numlayers;
1058		l_current_pi->poc.precno1 = p_max_precision;
1059		++l_current_pi;
1060	}
1061}
1062
1063
1064
1065OPJ_BOOL opj_pi_check_next_level(	OPJ_INT32 pos,
1066								opj_cp_t *cp,
1067								OPJ_UINT32 tileno,
1068								OPJ_UINT32 pino,
1069								const OPJ_CHAR *prog)
1070{
1071	OPJ_INT32 i;
1072	opj_tcp_t *tcps =&cp->tcps[tileno];
1073	opj_poc_t *tcp = &tcps->pocs[pino];
1074
1075	if(pos>=0){
1076		for(i=pos;pos>=0;i--){
1077			switch(prog[i]){
1078		    case 'R':
1079			    if(tcp->res_t==tcp->resE){
1080				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1081					    return OPJ_TRUE;
1082				    }else{
1083					    return OPJ_FALSE;
1084				    }
1085			    }else{
1086				    return OPJ_TRUE;
1087			    }
1088			    break;
1089		    case 'C':
1090			    if(tcp->comp_t==tcp->compE){
1091				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1092					    return OPJ_TRUE;
1093				    }else{
1094					    return OPJ_FALSE;
1095				    }
1096			    }else{
1097				    return OPJ_TRUE;
1098			    }
1099			    break;
1100		    case 'L':
1101			    if(tcp->lay_t==tcp->layE){
1102				    if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1103					    return OPJ_TRUE;
1104				    }else{
1105					    return OPJ_FALSE;
1106				    }
1107			    }else{
1108				    return OPJ_TRUE;
1109			    }
1110			    break;
1111		    case 'P':
1112			    switch(tcp->prg){
1113                    case OPJ_LRCP: /* fall through */
1114                    case OPJ_RLCP:
1115					    if(tcp->prc_t == tcp->prcE){
1116						    if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1117							    return OPJ_TRUE;
1118						    }else{
1119							    return OPJ_FALSE;
1120						    }
1121					    }else{
1122						    return OPJ_TRUE;
1123					    }
1124					    break;
1125			    default:
1126				    if(tcp->tx0_t == tcp->txE){
1127					    /*TY*/
1128					    if(tcp->ty0_t == tcp->tyE){
1129						    if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1130							    return OPJ_TRUE;
1131						    }else{
1132							    return OPJ_FALSE;
1133						    }
1134					    }else{
1135						    return OPJ_TRUE;
1136					    }/*TY*/
1137				    }else{
1138					    return OPJ_TRUE;
1139				    }
1140				    break;
1141			    }/*end case P*/
1142		    }/*end switch*/
1143		}/*end for*/
1144	}/*end if*/
1145	return OPJ_FALSE;
1146}
1147
1148
1149/*
1150==========================================================
1151   Packet iterator interface
1152==========================================================
1153*/
1154opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1155										opj_cp_t *p_cp,
1156										OPJ_UINT32 p_tile_no)
1157{
1158	/* loop */
1159	OPJ_UINT32 pino;
1160	OPJ_UINT32 compno, resno;
1161
1162	/* to store w, h, dx and dy fro all components and resolutions */
1163	OPJ_UINT32 * l_tmp_data;
1164	OPJ_UINT32 ** l_tmp_ptr;
1165
1166	/* encoding prameters to set */
1167	OPJ_UINT32 l_max_res;
1168	OPJ_UINT32 l_max_prec;
1169	OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1170	OPJ_UINT32 l_dx_min,l_dy_min;
1171	OPJ_UINT32 l_bound;
1172	OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1173	OPJ_UINT32 l_data_stride;
1174
1175	/* pointers */
1176	opj_pi_iterator_t *l_pi = 00;
1177	opj_tcp_t *l_tcp = 00;
1178	const opj_tccp_t *l_tccp = 00;
1179	opj_pi_comp_t *l_current_comp = 00;
1180	opj_image_comp_t * l_img_comp = 00;
1181	opj_pi_iterator_t * l_current_pi = 00;
1182	OPJ_UINT32 * l_encoding_value_ptr = 00;
1183
1184	/* preconditions in debug */
1185	assert(p_cp != 00);
1186	assert(p_image != 00);
1187	assert(p_tile_no < p_cp->tw * p_cp->th);
1188
1189	/* initializations */
1190	l_tcp = &p_cp->tcps[p_tile_no];
1191	l_bound = l_tcp->numpocs+1;
1192
1193	l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1194	l_tmp_data = (OPJ_UINT32*)opj_malloc(
1195		l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1196	if
1197		(! l_tmp_data)
1198	{
1199		return 00;
1200	}
1201	l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1202		p_image->numcomps * sizeof(OPJ_UINT32 *));
1203	if
1204		(! l_tmp_ptr)
1205	{
1206		opj_free(l_tmp_data);
1207		return 00;
1208	}
1209
1210	/* memory allocation for pi */
1211	l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1212	if (!l_pi) {
1213		opj_free(l_tmp_data);
1214		opj_free(l_tmp_ptr);
1215		return 00;
1216	}
1217
1218	l_encoding_value_ptr = l_tmp_data;
1219	/* update pointer array */
1220	for
1221		(compno = 0; compno < p_image->numcomps; ++compno)
1222	{
1223		l_tmp_ptr[compno] = l_encoding_value_ptr;
1224		l_encoding_value_ptr += l_data_stride;
1225	}
1226	/* get encoding parameters */
1227	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);
1228
1229	/* step calculations */
1230	l_step_p = 1;
1231	l_step_c = l_max_prec * l_step_p;
1232	l_step_r = p_image->numcomps * l_step_c;
1233	l_step_l = l_max_res * l_step_r;
1234
1235	/* set values for first packet iterator */
1236	l_current_pi = l_pi;
1237
1238	/* memory allocation for include */
1239	l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
1240	if
1241		(!l_current_pi->include)
1242	{
1243		opj_free(l_tmp_data);
1244		opj_free(l_tmp_ptr);
1245		opj_pi_destroy(l_pi, l_bound);
1246		return 00;
1247	}
1248
1249	/* special treatment for the first packet iterator */
1250	l_current_comp = l_current_pi->comps;
1251	l_img_comp = p_image->comps;
1252	l_tccp = l_tcp->tccps;
1253
1254	l_current_pi->tx0 = l_tx0;
1255	l_current_pi->ty0 = l_ty0;
1256	l_current_pi->tx1 = l_tx1;
1257	l_current_pi->ty1 = l_ty1;
1258
1259	/*l_current_pi->dx = l_img_comp->dx;*/
1260	/*l_current_pi->dy = l_img_comp->dy;*/
1261
1262	l_current_pi->step_p = l_step_p;
1263	l_current_pi->step_c = l_step_c;
1264	l_current_pi->step_r = l_step_r;
1265	l_current_pi->step_l = l_step_l;
1266
1267	/* allocation for components and number of components has already been calculated by opj_pi_create */
1268	for
1269		(compno = 0; compno < l_current_pi->numcomps; ++compno)
1270	{
1271		opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1272		l_encoding_value_ptr = l_tmp_ptr[compno];
1273
1274		l_current_comp->dx = l_img_comp->dx;
1275		l_current_comp->dy = l_img_comp->dy;
1276		/* resolutions have already been initialized */
1277		for
1278			(resno = 0; resno < l_current_comp->numresolutions; resno++)
1279		{
1280			l_res->pdx = *(l_encoding_value_ptr++);
1281			l_res->pdy = *(l_encoding_value_ptr++);
1282			l_res->pw =  *(l_encoding_value_ptr++);
1283			l_res->ph =  *(l_encoding_value_ptr++);
1284			++l_res;
1285		}
1286		++l_current_comp;
1287		++l_img_comp;
1288		++l_tccp;
1289	}
1290	++l_current_pi;
1291
1292	for (pino = 1 ; pino<l_bound ; ++pino )
1293	{
1294		l_current_comp = l_current_pi->comps;
1295		l_img_comp = p_image->comps;
1296		l_tccp = l_tcp->tccps;
1297
1298		l_current_pi->tx0 = l_tx0;
1299		l_current_pi->ty0 = l_ty0;
1300		l_current_pi->tx1 = l_tx1;
1301		l_current_pi->ty1 = l_ty1;
1302		/*l_current_pi->dx = l_dx_min;*/
1303		/*l_current_pi->dy = l_dy_min;*/
1304		l_current_pi->step_p = l_step_p;
1305		l_current_pi->step_c = l_step_c;
1306		l_current_pi->step_r = l_step_r;
1307		l_current_pi->step_l = l_step_l;
1308
1309		/* allocation for components and number of components has already been calculated by opj_pi_create */
1310		for
1311			(compno = 0; compno < l_current_pi->numcomps; ++compno)
1312		{
1313			opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1314			l_encoding_value_ptr = l_tmp_ptr[compno];
1315
1316			l_current_comp->dx = l_img_comp->dx;
1317			l_current_comp->dy = l_img_comp->dy;
1318			/* resolutions have already been initialized */
1319			for
1320				(resno = 0; resno < l_current_comp->numresolutions; resno++)
1321			{
1322				l_res->pdx = *(l_encoding_value_ptr++);
1323				l_res->pdy = *(l_encoding_value_ptr++);
1324				l_res->pw =  *(l_encoding_value_ptr++);
1325				l_res->ph =  *(l_encoding_value_ptr++);
1326				++l_res;
1327			}
1328			++l_current_comp;
1329			++l_img_comp;
1330			++l_tccp;
1331		}
1332		/* special treatment*/
1333		l_current_pi->include = (l_current_pi-1)->include;
1334		++l_current_pi;
1335	}
1336	opj_free(l_tmp_data);
1337	l_tmp_data = 00;
1338	opj_free(l_tmp_ptr);
1339	l_tmp_ptr = 00;
1340	if
1341		(l_tcp->POC)
1342	{
1343		opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
1344	}
1345	else
1346	{
1347		opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
1348	}
1349	return l_pi;
1350}
1351
1352
1353
1354opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1355                                            opj_cp_t *p_cp,
1356                                            OPJ_UINT32 p_tile_no,
1357                                            J2K_T2_MODE p_t2_mode )
1358{
1359	/* loop*/
1360	OPJ_UINT32 pino;
1361	OPJ_UINT32 compno, resno;
1362
1363	/* to store w, h, dx and dy fro all components and resolutions*/
1364	OPJ_UINT32 * l_tmp_data;
1365	OPJ_UINT32 ** l_tmp_ptr;
1366
1367	/* encoding prameters to set*/
1368	OPJ_UINT32 l_max_res;
1369	OPJ_UINT32 l_max_prec;
1370	OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1371	OPJ_UINT32 l_dx_min,l_dy_min;
1372	OPJ_UINT32 l_bound;
1373	OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1374	OPJ_UINT32 l_data_stride;
1375
1376	/* pointers*/
1377	opj_pi_iterator_t *l_pi = 00;
1378	opj_tcp_t *l_tcp = 00;
1379	const opj_tccp_t *l_tccp = 00;
1380	opj_pi_comp_t *l_current_comp = 00;
1381	opj_image_comp_t * l_img_comp = 00;
1382	opj_pi_iterator_t * l_current_pi = 00;
1383	OPJ_UINT32 * l_encoding_value_ptr = 00;
1384
1385	/* preconditions in debug*/
1386	assert(p_cp != 00);
1387	assert(p_image != 00);
1388	assert(p_tile_no < p_cp->tw * p_cp->th);
1389
1390	/* initializations*/
1391	l_tcp = &p_cp->tcps[p_tile_no];
1392	l_bound = l_tcp->numpocs+1;
1393
1394	l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1395	l_tmp_data = (OPJ_UINT32*)opj_malloc(
1396		l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1397	if (! l_tmp_data) {
1398		return 00;
1399	}
1400
1401	l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1402		p_image->numcomps * sizeof(OPJ_UINT32 *));
1403	if (! l_tmp_ptr) {
1404		opj_free(l_tmp_data);
1405		return 00;
1406	}
1407
1408	/* memory allocation for pi*/
1409	l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
1410	if (!l_pi) {
1411		opj_free(l_tmp_data);
1412		opj_free(l_tmp_ptr);
1413		return 00;
1414	}
1415
1416	l_encoding_value_ptr = l_tmp_data;
1417	/* update pointer array*/
1418	for (compno = 0; compno < p_image->numcomps; ++compno) {
1419		l_tmp_ptr[compno] = l_encoding_value_ptr;
1420		l_encoding_value_ptr += l_data_stride;
1421	}
1422
1423	/* get encoding parameters*/
1424	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);
1425
1426	/* step calculations*/
1427	l_step_p = 1;
1428	l_step_c = l_max_prec * l_step_p;
1429	l_step_r = p_image->numcomps * l_step_c;
1430	l_step_l = l_max_res * l_step_r;
1431
1432	/* set values for first packet iterator*/
1433	l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
1434	l_current_pi = l_pi;
1435
1436	/* memory allocation for include*/
1437	l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
1438	if (!l_current_pi->include) {
1439		opj_free(l_tmp_data);
1440		opj_free(l_tmp_ptr);
1441		opj_pi_destroy(l_pi, l_bound);
1442		return 00;
1443	}
1444
1445	/* special treatment for the first packet iterator*/
1446	l_current_comp = l_current_pi->comps;
1447	l_img_comp = p_image->comps;
1448	l_tccp = l_tcp->tccps;
1449	l_current_pi->tx0 = l_tx0;
1450	l_current_pi->ty0 = l_ty0;
1451	l_current_pi->tx1 = l_tx1;
1452	l_current_pi->ty1 = l_ty1;
1453	l_current_pi->dx = l_dx_min;
1454	l_current_pi->dy = l_dy_min;
1455	l_current_pi->step_p = l_step_p;
1456	l_current_pi->step_c = l_step_c;
1457	l_current_pi->step_r = l_step_r;
1458	l_current_pi->step_l = l_step_l;
1459
1460	/* allocation for components and number of components has already been calculated by opj_pi_create */
1461	for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1462		opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1463		l_encoding_value_ptr = l_tmp_ptr[compno];
1464
1465		l_current_comp->dx = l_img_comp->dx;
1466		l_current_comp->dy = l_img_comp->dy;
1467
1468		/* resolutions have already been initialized */
1469		for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1470			l_res->pdx = *(l_encoding_value_ptr++);
1471			l_res->pdy = *(l_encoding_value_ptr++);
1472			l_res->pw =  *(l_encoding_value_ptr++);
1473			l_res->ph =  *(l_encoding_value_ptr++);
1474			++l_res;
1475		}
1476
1477		++l_current_comp;
1478		++l_img_comp;
1479		++l_tccp;
1480	}
1481	++l_current_pi;
1482
1483	for (pino = 1 ; pino<l_bound ; ++pino ) {
1484		l_current_comp = l_current_pi->comps;
1485		l_img_comp = p_image->comps;
1486		l_tccp = l_tcp->tccps;
1487
1488		l_current_pi->tx0 = l_tx0;
1489		l_current_pi->ty0 = l_ty0;
1490		l_current_pi->tx1 = l_tx1;
1491		l_current_pi->ty1 = l_ty1;
1492		l_current_pi->dx = l_dx_min;
1493		l_current_pi->dy = l_dy_min;
1494		l_current_pi->step_p = l_step_p;
1495		l_current_pi->step_c = l_step_c;
1496		l_current_pi->step_r = l_step_r;
1497		l_current_pi->step_l = l_step_l;
1498
1499		/* allocation for components and number of components has already been calculated by opj_pi_create */
1500		for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1501			opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1502			l_encoding_value_ptr = l_tmp_ptr[compno];
1503
1504			l_current_comp->dx = l_img_comp->dx;
1505			l_current_comp->dy = l_img_comp->dy;
1506			/* resolutions have already been initialized */
1507			for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1508				l_res->pdx = *(l_encoding_value_ptr++);
1509				l_res->pdy = *(l_encoding_value_ptr++);
1510				l_res->pw =  *(l_encoding_value_ptr++);
1511				l_res->ph =  *(l_encoding_value_ptr++);
1512				++l_res;
1513			}
1514			++l_current_comp;
1515			++l_img_comp;
1516			++l_tccp;
1517		}
1518
1519		/* special treatment*/
1520		l_current_pi->include = (l_current_pi-1)->include;
1521		++l_current_pi;
1522	}
1523
1524	opj_free(l_tmp_data);
1525	l_tmp_data = 00;
1526	opj_free(l_tmp_ptr);
1527	l_tmp_ptr = 00;
1528
1529    if (l_tcp->POC && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
1530		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);
1531	}
1532	else {
1533		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);
1534	}
1535
1536	return l_pi;
1537}
1538
1539void opj_pi_create_encode( 	opj_pi_iterator_t *pi,
1540							opj_cp_t *cp,
1541							OPJ_UINT32 tileno,
1542							OPJ_UINT32 pino,
1543							OPJ_UINT32 tpnum,
1544							OPJ_INT32 tppos,
1545							J2K_T2_MODE t2_mode)
1546{
1547	const OPJ_CHAR *prog;
1548	OPJ_INT32 i;
1549	OPJ_UINT32 incr_top=1,resetX=0;
1550	opj_tcp_t *tcps =&cp->tcps[tileno];
1551	opj_poc_t *tcp= &tcps->pocs[pino];
1552
1553	prog = opj_j2k_convert_progression_order(tcp->prg);
1554
1555	pi[pino].first = 1;
1556	pi[pino].poc.prg = tcp->prg;
1557
1558    if(!(cp->m_specific_param.m_enc.m_tp_on && ((!OPJ_IS_CINEMA(cp->rsiz) && (t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz)))){
1559		pi[pino].poc.resno0 = tcp->resS;
1560		pi[pino].poc.resno1 = tcp->resE;
1561		pi[pino].poc.compno0 = tcp->compS;
1562		pi[pino].poc.compno1 = tcp->compE;
1563		pi[pino].poc.layno0 = tcp->layS;
1564		pi[pino].poc.layno1 = tcp->layE;
1565		pi[pino].poc.precno0 = tcp->prcS;
1566		pi[pino].poc.precno1 = tcp->prcE;
1567		pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1568		pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1569		pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1570		pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1571	}else {
1572		for(i=tppos+1;i<4;i++){
1573			switch(prog[i]){
1574			case 'R':
1575				pi[pino].poc.resno0 = tcp->resS;
1576				pi[pino].poc.resno1 = tcp->resE;
1577				break;
1578			case 'C':
1579				pi[pino].poc.compno0 = tcp->compS;
1580				pi[pino].poc.compno1 = tcp->compE;
1581				break;
1582			case 'L':
1583				pi[pino].poc.layno0 = tcp->layS;
1584				pi[pino].poc.layno1 = tcp->layE;
1585				break;
1586			case 'P':
1587				switch(tcp->prg){
1588				case OPJ_LRCP:
1589				case OPJ_RLCP:
1590					pi[pino].poc.precno0 = tcp->prcS;
1591					pi[pino].poc.precno1 = tcp->prcE;
1592					break;
1593				default:
1594					pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1595					pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1596					pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1597					pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1598					break;
1599				}
1600				break;
1601			}
1602		}
1603
1604		if(tpnum==0){
1605			for(i=tppos;i>=0;i--){
1606				switch(prog[i]){
1607				case 'C':
1608					tcp->comp_t = tcp->compS;
1609					pi[pino].poc.compno0 = tcp->comp_t;
1610					pi[pino].poc.compno1 = tcp->comp_t+1;
1611					tcp->comp_t+=1;
1612					break;
1613				case 'R':
1614					tcp->res_t = tcp->resS;
1615					pi[pino].poc.resno0 = tcp->res_t;
1616					pi[pino].poc.resno1 = tcp->res_t+1;
1617					tcp->res_t+=1;
1618					break;
1619				case 'L':
1620					tcp->lay_t = tcp->layS;
1621					pi[pino].poc.layno0 = tcp->lay_t;
1622					pi[pino].poc.layno1 = tcp->lay_t+1;
1623					tcp->lay_t+=1;
1624					break;
1625				case 'P':
1626					switch(tcp->prg){
1627					case OPJ_LRCP:
1628					case OPJ_RLCP:
1629						tcp->prc_t = tcp->prcS;
1630						pi[pino].poc.precno0 = tcp->prc_t;
1631						pi[pino].poc.precno1 = tcp->prc_t+1;
1632						tcp->prc_t+=1;
1633						break;
1634					default:
1635						tcp->tx0_t = tcp->txS;
1636						tcp->ty0_t = tcp->tyS;
1637						pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1638						pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1639						pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1640						pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1641						tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1642						tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1643						break;
1644					}
1645					break;
1646				}
1647			}
1648			incr_top=1;
1649		}else{
1650			for(i=tppos;i>=0;i--){
1651				switch(prog[i]){
1652				case 'C':
1653					pi[pino].poc.compno0 = tcp->comp_t-1;
1654					pi[pino].poc.compno1 = tcp->comp_t;
1655					break;
1656				case 'R':
1657					pi[pino].poc.resno0 = tcp->res_t-1;
1658					pi[pino].poc.resno1 = tcp->res_t;
1659					break;
1660				case 'L':
1661					pi[pino].poc.layno0 = tcp->lay_t-1;
1662					pi[pino].poc.layno1 = tcp->lay_t;
1663					break;
1664				case 'P':
1665					switch(tcp->prg){
1666					case OPJ_LRCP:
1667					case OPJ_RLCP:
1668						pi[pino].poc.precno0 = tcp->prc_t-1;
1669						pi[pino].poc.precno1 = tcp->prc_t;
1670						break;
1671					default:
1672						pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
1673						pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
1674						pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
1675						pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
1676						break;
1677					}
1678					break;
1679				}
1680				if(incr_top==1){
1681					switch(prog[i]){
1682					case 'R':
1683						if(tcp->res_t==tcp->resE){
1684							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1685								tcp->res_t = tcp->resS;
1686								pi[pino].poc.resno0 = tcp->res_t;
1687								pi[pino].poc.resno1 = tcp->res_t+1;
1688								tcp->res_t+=1;
1689								incr_top=1;
1690							}else{
1691								incr_top=0;
1692							}
1693						}else{
1694							pi[pino].poc.resno0 = tcp->res_t;
1695							pi[pino].poc.resno1 = tcp->res_t+1;
1696							tcp->res_t+=1;
1697							incr_top=0;
1698						}
1699						break;
1700					case 'C':
1701						if(tcp->comp_t ==tcp->compE){
1702							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1703								tcp->comp_t = tcp->compS;
1704								pi[pino].poc.compno0 = tcp->comp_t;
1705								pi[pino].poc.compno1 = tcp->comp_t+1;
1706								tcp->comp_t+=1;
1707								incr_top=1;
1708							}else{
1709								incr_top=0;
1710							}
1711						}else{
1712							pi[pino].poc.compno0 = tcp->comp_t;
1713							pi[pino].poc.compno1 = tcp->comp_t+1;
1714							tcp->comp_t+=1;
1715							incr_top=0;
1716						}
1717						break;
1718					case 'L':
1719						if(tcp->lay_t == tcp->layE){
1720							if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1721								tcp->lay_t = tcp->layS;
1722								pi[pino].poc.layno0 = tcp->lay_t;
1723								pi[pino].poc.layno1 = tcp->lay_t+1;
1724								tcp->lay_t+=1;
1725								incr_top=1;
1726							}else{
1727								incr_top=0;
1728							}
1729						}else{
1730							pi[pino].poc.layno0 = tcp->lay_t;
1731							pi[pino].poc.layno1 = tcp->lay_t+1;
1732							tcp->lay_t+=1;
1733							incr_top=0;
1734						}
1735						break;
1736					case 'P':
1737						switch(tcp->prg){
1738						case OPJ_LRCP:
1739						case OPJ_RLCP:
1740							if(tcp->prc_t == tcp->prcE){
1741								if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1742									tcp->prc_t = tcp->prcS;
1743									pi[pino].poc.precno0 = tcp->prc_t;
1744									pi[pino].poc.precno1 = tcp->prc_t+1;
1745									tcp->prc_t+=1;
1746									incr_top=1;
1747								}else{
1748									incr_top=0;
1749								}
1750							}else{
1751								pi[pino].poc.precno0 = tcp->prc_t;
1752								pi[pino].poc.precno1 = tcp->prc_t+1;
1753								tcp->prc_t+=1;
1754								incr_top=0;
1755							}
1756							break;
1757						default:
1758							if(tcp->tx0_t >= tcp->txE){
1759								if(tcp->ty0_t >= tcp->tyE){
1760									if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1761										tcp->ty0_t = tcp->tyS;
1762										pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1763										pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1764										tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1765										incr_top=1;resetX=1;
1766									}else{
1767										incr_top=0;resetX=0;
1768									}
1769								}else{
1770									pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1771									pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1772									tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1773									incr_top=0;resetX=1;
1774								}
1775								if(resetX==1){
1776									tcp->tx0_t = tcp->txS;
1777									pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1778									pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1779									tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1780								}
1781							}else{
1782								pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1783								pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1784								tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1785								incr_top=0;
1786							}
1787							break;
1788						}
1789						break;
1790					}
1791				}
1792			}
1793		}
1794	}
1795}
1796
1797void opj_pi_destroy(opj_pi_iterator_t *p_pi,
1798                    OPJ_UINT32 p_nb_elements)
1799{
1800	OPJ_UINT32 compno, pino;
1801	opj_pi_iterator_t *l_current_pi = p_pi;
1802    if (p_pi) {
1803		if (p_pi->include) {
1804			opj_free(p_pi->include);
1805			p_pi->include = 00;
1806		}
1807		for (pino = 0; pino < p_nb_elements; ++pino){
1808			if(l_current_pi->comps) {
1809				opj_pi_comp_t *l_current_component = l_current_pi->comps;
1810                for (compno = 0; compno < l_current_pi->numcomps; compno++){
1811                    if(l_current_component->resolutions) {
1812						opj_free(l_current_component->resolutions);
1813						l_current_component->resolutions = 00;
1814					}
1815
1816					++l_current_component;
1817				}
1818				opj_free(l_current_pi->comps);
1819				l_current_pi->comps = 0;
1820			}
1821			++l_current_pi;
1822		}
1823		opj_free(p_pi);
1824	}
1825}
1826
1827
1828
1829void opj_pi_update_encoding_parameters(	const opj_image_t *p_image,
1830                                        opj_cp_t *p_cp,
1831                                        OPJ_UINT32 p_tile_no )
1832{
1833	/* encoding parameters to set */
1834	OPJ_UINT32 l_max_res;
1835	OPJ_UINT32 l_max_prec;
1836	OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1837	OPJ_UINT32 l_dx_min,l_dy_min;
1838
1839	/* pointers */
1840	opj_tcp_t *l_tcp = 00;
1841
1842	/* preconditions */
1843	assert(p_cp != 00);
1844	assert(p_image != 00);
1845	assert(p_tile_no < p_cp->tw * p_cp->th);
1846
1847	l_tcp = &(p_cp->tcps[p_tile_no]);
1848
1849	/* get encoding parameters */
1850	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);
1851
1852	if (l_tcp->POC) {
1853		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);
1854	}
1855	else {
1856		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);
1857	}
1858}
1859
1860OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi) {
1861	switch (pi->poc.prg) {
1862		case OPJ_LRCP:
1863			return opj_pi_next_lrcp(pi);
1864		case OPJ_RLCP:
1865			return opj_pi_next_rlcp(pi);
1866		case OPJ_RPCL:
1867			return opj_pi_next_rpcl(pi);
1868		case OPJ_PCRL:
1869			return opj_pi_next_pcrl(pi);
1870		case OPJ_CPRL:
1871			return opj_pi_next_cprl(pi);
1872		case OPJ_PROG_UNKNOWN:
1873			return OPJ_FALSE;
1874	}
1875
1876	return OPJ_FALSE;
1877}
1878