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 /**
48 Get 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 */
52 static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi);
53 /**
54 Get 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 */
58 static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi);
59 /**
60 Get 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 */
64 static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi);
65 /**
66 Get 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 */
70 static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi);
71 /**
72 Get 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 */
76 static 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 */
92 static 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 */
118 static 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 maximum precision for all the bands of the tile
140 * @param p_max_res pointer that will hold the maximum number of resolutions for all the poc inside the tile.
141 * @param p_dx_min pointer that will hold the minimum dx of all the components of all the resolutions for the tile.
142 * @param p_dy_min pointer that will hold the minimum dy of all the components of all the resolutions for the tile.
143 */
144 static 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 maximum precision for all the bands of the tile
171 * @param p_max_res pointer that will hold the maximum number of resolutions for all the poc inside the tile.
172 * @param p_dx_min pointer that will hold the minimum dx of all the components of all the resolutions for the tile.
173 * @param p_dy_min pointer that will hold 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 */
176 static 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 */
196 static 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 */
202 static 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 */
209 static 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 */
217 static OPJ_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
opj_pi_emit_error(opj_pi_iterator_t * pi,const char * msg)233 static void opj_pi_emit_error(opj_pi_iterator_t * pi, const char* msg)
234 {
235 (void)pi;
236 (void)msg;
237 }
238
opj_pi_next_lrcp(opj_pi_iterator_t * pi)239 static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi)
240 {
241 opj_pi_comp_t *comp = NULL;
242 opj_pi_resolution_t *res = NULL;
243 OPJ_UINT32 index = 0;
244
245 if (!pi->first) {
246 comp = &pi->comps[pi->compno];
247 res = &comp->resolutions[pi->resno];
248 goto LABEL_SKIP;
249 } else {
250 pi->first = 0;
251 }
252
253 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
254 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
255 pi->resno++) {
256 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
257 comp = &pi->comps[pi->compno];
258 if (pi->resno >= comp->numresolutions) {
259 continue;
260 }
261 res = &comp->resolutions[pi->resno];
262 if (!pi->tp_on) {
263 pi->poc.precno1 = res->pw * res->ph;
264 }
265 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
266 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
267 pi->step_c + pi->precno * pi->step_p;
268 /* Avoids index out of bounds access with */
269 /* id_000098,sig_11,src_005411,op_havoc,rep_2 of */
270 /* https://github.com/uclouvain/openjpeg/issues/938 */
271 /* Not sure if this is the most clever fix. Perhaps */
272 /* include should be resized when a POC arises, or */
273 /* the POC should be rejected */
274 if (index >= pi->include_size) {
275 opj_pi_emit_error(pi, "Invalid access to pi->include");
276 return OPJ_FALSE;
277 }
278 if (!pi->include[index]) {
279 pi->include[index] = 1;
280 return OPJ_TRUE;
281 }
282 LABEL_SKIP:
283 ;
284 }
285 }
286 }
287 }
288
289 return OPJ_FALSE;
290 }
291
opj_pi_next_rlcp(opj_pi_iterator_t * pi)292 static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi)
293 {
294 opj_pi_comp_t *comp = NULL;
295 opj_pi_resolution_t *res = NULL;
296 OPJ_UINT32 index = 0;
297
298 if (!pi->first) {
299 comp = &pi->comps[pi->compno];
300 res = &comp->resolutions[pi->resno];
301 goto LABEL_SKIP;
302 } else {
303 pi->first = 0;
304 }
305
306 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
307 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
308 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
309 comp = &pi->comps[pi->compno];
310 if (pi->resno >= comp->numresolutions) {
311 continue;
312 }
313 res = &comp->resolutions[pi->resno];
314 if (!pi->tp_on) {
315 pi->poc.precno1 = res->pw * res->ph;
316 }
317 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
318 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
319 pi->step_c + pi->precno * pi->step_p;
320 if (index >= pi->include_size) {
321 opj_pi_emit_error(pi, "Invalid access to pi->include");
322 return OPJ_FALSE;
323 }
324 if (!pi->include[index]) {
325 pi->include[index] = 1;
326 return OPJ_TRUE;
327 }
328 LABEL_SKIP:
329 ;
330 }
331 }
332 }
333 }
334
335 return OPJ_FALSE;
336 }
337
opj_pi_next_rpcl(opj_pi_iterator_t * pi)338 static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi)
339 {
340 opj_pi_comp_t *comp = NULL;
341 opj_pi_resolution_t *res = NULL;
342 OPJ_UINT32 index = 0;
343
344 if (!pi->first) {
345 goto LABEL_SKIP;
346 } else {
347 OPJ_UINT32 compno, resno;
348 pi->first = 0;
349 pi->dx = 0;
350 pi->dy = 0;
351 for (compno = 0; compno < pi->numcomps; compno++) {
352 comp = &pi->comps[compno];
353 for (resno = 0; resno < comp->numresolutions; resno++) {
354 OPJ_UINT32 dx, dy;
355 res = &comp->resolutions[resno];
356 if (res->pdx + comp->numresolutions - 1 - resno < 32 &&
357 comp->dx <= UINT_MAX / (1u << (res->pdx + comp->numresolutions - 1 - resno))) {
358 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
359 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
360 }
361 if (res->pdy + comp->numresolutions - 1 - resno < 32 &&
362 comp->dy <= UINT_MAX / (1u << (res->pdy + comp->numresolutions - 1 - resno))) {
363 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
364 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
365 }
366 }
367 }
368 if (pi->dx == 0 || pi->dy == 0) {
369 return OPJ_FALSE;
370 }
371 }
372 if (!pi->tp_on) {
373 pi->poc.ty0 = pi->ty0;
374 pi->poc.tx0 = pi->tx0;
375 pi->poc.ty1 = pi->ty1;
376 pi->poc.tx1 = pi->tx1;
377 }
378 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
379 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1;
380 pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
381 for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1;
382 pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
383 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
384 OPJ_UINT32 levelno;
385 OPJ_INT32 trx0, try0;
386 OPJ_INT32 trx1, try1;
387 OPJ_UINT32 rpx, rpy;
388 OPJ_INT32 prci, prcj;
389 comp = &pi->comps[pi->compno];
390 if (pi->resno >= comp->numresolutions) {
391 continue;
392 }
393 res = &comp->resolutions[pi->resno];
394 levelno = comp->numresolutions - 1 - pi->resno;
395 /* Avoids division by zero */
396 /* Relates to id_000004,sig_06,src_000679,op_arith8,pos_49,val_-17 */
397 /* of https://github.com/uclouvain/openjpeg/issues/938 */
398 if (levelno >= 32 ||
399 ((comp->dx << levelno) >> levelno) != comp->dx ||
400 ((comp->dy << levelno) >> levelno) != comp->dy) {
401 continue;
402 }
403 if ((comp->dx << levelno) > INT_MAX ||
404 (comp->dy << levelno) > INT_MAX) {
405 continue;
406 }
407 trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
408 try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
409 trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
410 try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
411 rpx = res->pdx + levelno;
412 rpy = res->pdy + levelno;
413
414 /* To avoid divisions by zero / undefined behaviour on shift */
415 /* in below tests */
416 /* Fixes reading id:000026,sig:08,src:002419,op:int32,pos:60,val:+32 */
417 /* of https://github.com/uclouvain/openjpeg/issues/938 */
418 if (rpx >= 31 || ((comp->dx << rpx) >> rpx) != comp->dx ||
419 rpy >= 31 || ((comp->dy << rpy) >> rpy) != comp->dy) {
420 continue;
421 }
422
423 /* See ISO-15441. B.12.1.3 Resolution level-position-component-layer progression */
424 if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) &&
425 ((try0 << levelno) % (1 << rpy))))) {
426 continue;
427 }
428 if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) &&
429 ((trx0 << levelno) % (1 << rpx))))) {
430 continue;
431 }
432
433 if ((res->pw == 0) || (res->ph == 0)) {
434 continue;
435 }
436
437 if ((trx0 == trx1) || (try0 == try1)) {
438 continue;
439 }
440
441 prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x,
442 (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
443 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
444 prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y,
445 (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
446 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
447 pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
448 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
449 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
450 pi->step_c + pi->precno * pi->step_p;
451 if (index >= pi->include_size) {
452 opj_pi_emit_error(pi, "Invalid access to pi->include");
453 return OPJ_FALSE;
454 }
455 if (!pi->include[index]) {
456 pi->include[index] = 1;
457 return OPJ_TRUE;
458 }
459 LABEL_SKIP:
460 ;
461 }
462 }
463 }
464 }
465 }
466
467 return OPJ_FALSE;
468 }
469
opj_pi_next_pcrl(opj_pi_iterator_t * pi)470 static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi)
471 {
472 opj_pi_comp_t *comp = NULL;
473 opj_pi_resolution_t *res = NULL;
474 OPJ_UINT32 index = 0;
475
476 if (!pi->first) {
477 comp = &pi->comps[pi->compno];
478 goto LABEL_SKIP;
479 } else {
480 OPJ_UINT32 compno, resno;
481 pi->first = 0;
482 pi->dx = 0;
483 pi->dy = 0;
484 for (compno = 0; compno < pi->numcomps; compno++) {
485 comp = &pi->comps[compno];
486 for (resno = 0; resno < comp->numresolutions; resno++) {
487 OPJ_UINT32 dx, dy;
488 res = &comp->resolutions[resno];
489 if (res->pdx + comp->numresolutions - 1 - resno < 32 &&
490 comp->dx <= UINT_MAX / (1u << (res->pdx + comp->numresolutions - 1 - resno))) {
491 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
492 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
493 }
494 if (res->pdy + comp->numresolutions - 1 - resno < 32 &&
495 comp->dy <= UINT_MAX / (1u << (res->pdy + comp->numresolutions - 1 - resno))) {
496 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
497 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
498 }
499 }
500 }
501 if (pi->dx == 0 || pi->dy == 0) {
502 return OPJ_FALSE;
503 }
504 }
505 if (!pi->tp_on) {
506 pi->poc.ty0 = pi->ty0;
507 pi->poc.tx0 = pi->tx0;
508 pi->poc.ty1 = pi->ty1;
509 pi->poc.tx1 = pi->tx1;
510 }
511 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1;
512 pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
513 for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1;
514 pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
515 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
516 comp = &pi->comps[pi->compno];
517 for (pi->resno = pi->poc.resno0;
518 pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
519 OPJ_UINT32 levelno;
520 OPJ_INT32 trx0, try0;
521 OPJ_INT32 trx1, try1;
522 OPJ_UINT32 rpx, rpy;
523 OPJ_INT32 prci, prcj;
524 res = &comp->resolutions[pi->resno];
525 levelno = comp->numresolutions - 1 - pi->resno;
526 /* Avoids division by zero */
527 /* Relates to id_000004,sig_06,src_000679,op_arith8,pos_49,val_-17 */
528 /* of https://github.com/uclouvain/openjpeg/issues/938 */
529 if (levelno >= 32 ||
530 ((comp->dx << levelno) >> levelno) != comp->dx ||
531 ((comp->dy << levelno) >> levelno) != comp->dy) {
532 continue;
533 }
534 if ((comp->dx << levelno) > INT_MAX ||
535 (comp->dy << levelno) > INT_MAX) {
536 continue;
537 }
538 trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
539 try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
540 trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
541 try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
542 rpx = res->pdx + levelno;
543 rpy = res->pdy + levelno;
544
545 /* To avoid divisions by zero / undefined behaviour on shift */
546 /* in below tests */
547 /* Relates to id:000019,sig:08,src:001098,op:flip1,pos:49 */
548 /* of https://github.com/uclouvain/openjpeg/issues/938 */
549 if (rpx >= 31 || ((comp->dx << rpx) >> rpx) != comp->dx ||
550 rpy >= 31 || ((comp->dy << rpy) >> rpy) != comp->dy) {
551 continue;
552 }
553
554 /* See ISO-15441. B.12.1.4 Position-component-resolution level-layer progression */
555 if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) &&
556 ((try0 << levelno) % (1 << rpy))))) {
557 continue;
558 }
559 if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) &&
560 ((trx0 << levelno) % (1 << rpx))))) {
561 continue;
562 }
563
564 if ((res->pw == 0) || (res->ph == 0)) {
565 continue;
566 }
567
568 if ((trx0 == trx1) || (try0 == try1)) {
569 continue;
570 }
571
572 prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x,
573 (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
574 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
575 prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y,
576 (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
577 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
578 pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
579 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
580 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
581 pi->step_c + pi->precno * pi->step_p;
582 if (index >= pi->include_size) {
583 opj_pi_emit_error(pi, "Invalid access to pi->include");
584 return OPJ_FALSE;
585 }
586 if (!pi->include[index]) {
587 pi->include[index] = 1;
588 return OPJ_TRUE;
589 }
590 LABEL_SKIP:
591 ;
592 }
593 }
594 }
595 }
596 }
597
598 return OPJ_FALSE;
599 }
600
opj_pi_next_cprl(opj_pi_iterator_t * pi)601 static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi)
602 {
603 opj_pi_comp_t *comp = NULL;
604 opj_pi_resolution_t *res = NULL;
605 OPJ_UINT32 index = 0;
606
607 if (!pi->first) {
608 comp = &pi->comps[pi->compno];
609 goto LABEL_SKIP;
610 } else {
611 pi->first = 0;
612 }
613
614 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
615 OPJ_UINT32 resno;
616 comp = &pi->comps[pi->compno];
617 pi->dx = 0;
618 pi->dy = 0;
619 for (resno = 0; resno < comp->numresolutions; resno++) {
620 OPJ_UINT32 dx, dy;
621 res = &comp->resolutions[resno];
622 if (res->pdx + comp->numresolutions - 1 - resno < 32 &&
623 comp->dx <= UINT_MAX / (1u << (res->pdx + comp->numresolutions - 1 - resno))) {
624 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
625 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
626 }
627 if (res->pdy + comp->numresolutions - 1 - resno < 32 &&
628 comp->dy <= UINT_MAX / (1u << (res->pdy + comp->numresolutions - 1 - resno))) {
629 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
630 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
631 }
632 }
633 if (pi->dx == 0 || pi->dy == 0) {
634 return OPJ_FALSE;
635 }
636 if (!pi->tp_on) {
637 pi->poc.ty0 = pi->ty0;
638 pi->poc.tx0 = pi->tx0;
639 pi->poc.ty1 = pi->ty1;
640 pi->poc.tx1 = pi->tx1;
641 }
642 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1;
643 pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
644 for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1;
645 pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
646 for (pi->resno = pi->poc.resno0;
647 pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
648 OPJ_UINT32 levelno;
649 OPJ_INT32 trx0, try0;
650 OPJ_INT32 trx1, try1;
651 OPJ_UINT32 rpx, rpy;
652 OPJ_INT32 prci, prcj;
653 res = &comp->resolutions[pi->resno];
654 levelno = comp->numresolutions - 1 - pi->resno;
655 /* Avoids division by zero on id_000004,sig_06,src_000679,op_arith8,pos_49,val_-17 */
656 /* of https://github.com/uclouvain/openjpeg/issues/938 */
657 if (levelno >= 32 ||
658 ((comp->dx << levelno) >> levelno) != comp->dx ||
659 ((comp->dy << levelno) >> levelno) != comp->dy) {
660 continue;
661 }
662 if ((comp->dx << levelno) > INT_MAX ||
663 (comp->dy << levelno) > INT_MAX) {
664 continue;
665 }
666 trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
667 try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
668 trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
669 try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
670 rpx = res->pdx + levelno;
671 rpy = res->pdy + levelno;
672
673 /* To avoid divisions by zero / undefined behaviour on shift */
674 /* in below tests */
675 /* Fixes reading id:000019,sig:08,src:001098,op:flip1,pos:49 */
676 /* of https://github.com/uclouvain/openjpeg/issues/938 */
677 if (rpx >= 31 || ((comp->dx << rpx) >> rpx) != comp->dx ||
678 rpy >= 31 || ((comp->dy << rpy) >> rpy) != comp->dy) {
679 continue;
680 }
681
682 /* See ISO-15441. B.12.1.5 Component-position-resolution level-layer progression */
683 if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) &&
684 ((try0 << levelno) % (1 << rpy))))) {
685 continue;
686 }
687 if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) &&
688 ((trx0 << levelno) % (1 << rpx))))) {
689 continue;
690 }
691
692 if ((res->pw == 0) || (res->ph == 0)) {
693 continue;
694 }
695
696 if ((trx0 == trx1) || (try0 == try1)) {
697 continue;
698 }
699
700 prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x,
701 (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
702 - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
703 prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y,
704 (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
705 - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
706 pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
707 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
708 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
709 pi->step_c + pi->precno * pi->step_p;
710 if (index >= pi->include_size) {
711 opj_pi_emit_error(pi, "Invalid access to pi->include");
712 return OPJ_FALSE;
713 }
714 if (!pi->include[index]) {
715 pi->include[index] = 1;
716 return OPJ_TRUE;
717 }
718 LABEL_SKIP:
719 ;
720 }
721 }
722 }
723 }
724 }
725
726 return OPJ_FALSE;
727 }
728
opj_get_encoding_parameters(const opj_image_t * p_image,const opj_cp_t * p_cp,OPJ_UINT32 p_tileno,OPJ_INT32 * p_tx0,OPJ_INT32 * p_tx1,OPJ_INT32 * p_ty0,OPJ_INT32 * p_ty1,OPJ_UINT32 * p_dx_min,OPJ_UINT32 * p_dy_min,OPJ_UINT32 * p_max_prec,OPJ_UINT32 * p_max_res)729 static void opj_get_encoding_parameters(const opj_image_t *p_image,
730 const opj_cp_t *p_cp,
731 OPJ_UINT32 p_tileno,
732 OPJ_INT32 * p_tx0,
733 OPJ_INT32 * p_tx1,
734 OPJ_INT32 * p_ty0,
735 OPJ_INT32 * p_ty1,
736 OPJ_UINT32 * p_dx_min,
737 OPJ_UINT32 * p_dy_min,
738 OPJ_UINT32 * p_max_prec,
739 OPJ_UINT32 * p_max_res)
740 {
741 /* loop */
742 OPJ_UINT32 compno, resno;
743 /* pointers */
744 const opj_tcp_t *l_tcp = 00;
745 const opj_tccp_t * l_tccp = 00;
746 const opj_image_comp_t * l_img_comp = 00;
747
748 /* position in x and y of tile */
749 OPJ_UINT32 p, q;
750
751 /* preconditions */
752 assert(p_cp != 00);
753 assert(p_image != 00);
754 assert(p_tileno < p_cp->tw * p_cp->th);
755
756 /* initializations */
757 l_tcp = &p_cp->tcps [p_tileno];
758 l_img_comp = p_image->comps;
759 l_tccp = l_tcp->tccps;
760
761 /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
762 p = p_tileno % p_cp->tw;
763 q = p_tileno / p_cp->tw;
764
765 /* find extent of tile */
766 *p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx),
767 (OPJ_INT32)p_image->x0);
768 *p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx),
769 (OPJ_INT32)p_image->x1);
770 *p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy),
771 (OPJ_INT32)p_image->y0);
772 *p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy),
773 (OPJ_INT32)p_image->y1);
774
775 /* max precision is 0 (can only grow) */
776 *p_max_prec = 0;
777 *p_max_res = 0;
778
779 /* take the largest value for dx_min and dy_min */
780 *p_dx_min = 0x7fffffff;
781 *p_dy_min = 0x7fffffff;
782
783 for (compno = 0; compno < p_image->numcomps; ++compno) {
784 /* arithmetic variables to calculate */
785 OPJ_UINT32 l_level_no;
786 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
787 OPJ_INT32 l_px0, l_py0, l_px1, py1;
788 OPJ_UINT32 l_pdx, l_pdy;
789 OPJ_UINT32 l_pw, l_ph;
790 OPJ_UINT32 l_product;
791 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
792
793 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
794 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
795 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
796 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
797
798 if (l_tccp->numresolutions > *p_max_res) {
799 *p_max_res = l_tccp->numresolutions;
800 }
801
802 /* use custom size for precincts */
803 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
804 OPJ_UINT32 l_dx, l_dy;
805
806 /* precinct width and height */
807 l_pdx = l_tccp->prcw[resno];
808 l_pdy = l_tccp->prch[resno];
809
810 l_dx = l_img_comp->dx * (1u << (l_pdx + l_tccp->numresolutions - 1 - resno));
811 l_dy = l_img_comp->dy * (1u << (l_pdy + l_tccp->numresolutions - 1 - resno));
812
813 /* take the minimum size for dx for each comp and resolution */
814 *p_dx_min = opj_uint_min(*p_dx_min, l_dx);
815 *p_dy_min = opj_uint_min(*p_dy_min, l_dy);
816
817 /* various calculations of extents */
818 l_level_no = l_tccp->numresolutions - 1 - resno;
819
820 l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
821 l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
822 l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
823 l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
824
825 l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
826 l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
827 l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
828
829 py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
830
831 l_pw = (l_rx0 == l_rx1) ? 0 : (OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
832 l_ph = (l_ry0 == l_ry1) ? 0 : (OPJ_UINT32)((py1 - l_py0) >> l_pdy);
833
834 l_product = l_pw * l_ph;
835
836 /* update precision */
837 if (l_product > *p_max_prec) {
838 *p_max_prec = l_product;
839 }
840 }
841 ++l_img_comp;
842 ++l_tccp;
843 }
844 }
845
846
opj_get_all_encoding_parameters(const opj_image_t * p_image,const opj_cp_t * p_cp,OPJ_UINT32 tileno,OPJ_INT32 * p_tx0,OPJ_INT32 * p_tx1,OPJ_INT32 * p_ty0,OPJ_INT32 * p_ty1,OPJ_UINT32 * p_dx_min,OPJ_UINT32 * p_dy_min,OPJ_UINT32 * p_max_prec,OPJ_UINT32 * p_max_res,OPJ_UINT32 ** p_resolutions)847 static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
848 const opj_cp_t *p_cp,
849 OPJ_UINT32 tileno,
850 OPJ_INT32 * p_tx0,
851 OPJ_INT32 * p_tx1,
852 OPJ_INT32 * p_ty0,
853 OPJ_INT32 * p_ty1,
854 OPJ_UINT32 * p_dx_min,
855 OPJ_UINT32 * p_dy_min,
856 OPJ_UINT32 * p_max_prec,
857 OPJ_UINT32 * p_max_res,
858 OPJ_UINT32 ** p_resolutions)
859 {
860 /* loop*/
861 OPJ_UINT32 compno, resno;
862
863 /* pointers*/
864 const opj_tcp_t *tcp = 00;
865 const opj_tccp_t * l_tccp = 00;
866 const opj_image_comp_t * l_img_comp = 00;
867
868 /* to store l_dx, l_dy, w and h for each resolution and component.*/
869 OPJ_UINT32 * lResolutionPtr;
870
871 /* position in x and y of tile*/
872 OPJ_UINT32 p, q;
873
874 /* non-corrected (in regard to image offset) tile offset */
875 OPJ_UINT32 l_tx0, l_ty0;
876
877 /* preconditions in debug*/
878 assert(p_cp != 00);
879 assert(p_image != 00);
880 assert(tileno < p_cp->tw * p_cp->th);
881
882 /* initializations*/
883 tcp = &p_cp->tcps [tileno];
884 l_tccp = tcp->tccps;
885 l_img_comp = p_image->comps;
886
887 /* position in x and y of tile*/
888 p = tileno % p_cp->tw;
889 q = tileno / p_cp->tw;
890
891 /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
892 l_tx0 = p_cp->tx0 + p *
893 p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
894 *p_tx0 = (OPJ_INT32)opj_uint_max(l_tx0, p_image->x0);
895 *p_tx1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
896 l_ty0 = p_cp->ty0 + q *
897 p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
898 *p_ty0 = (OPJ_INT32)opj_uint_max(l_ty0, p_image->y0);
899 *p_ty1 = (OPJ_INT32)opj_uint_min(opj_uint_adds(l_ty0, p_cp->tdy), p_image->y1);
900
901 /* max precision and resolution is 0 (can only grow)*/
902 *p_max_prec = 0;
903 *p_max_res = 0;
904
905 /* take the largest value for dx_min and dy_min*/
906 *p_dx_min = 0x7fffffff;
907 *p_dy_min = 0x7fffffff;
908
909 for (compno = 0; compno < p_image->numcomps; ++compno) {
910 /* aritmetic variables to calculate*/
911 OPJ_UINT32 l_level_no;
912 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
913 OPJ_INT32 l_px0, l_py0, l_px1, py1;
914 OPJ_UINT32 l_product;
915 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
916 OPJ_UINT32 l_pdx, l_pdy, l_pw, l_ph;
917
918 lResolutionPtr = p_resolutions[compno];
919
920 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
921 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
922 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
923 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
924
925 if (l_tccp->numresolutions > *p_max_res) {
926 *p_max_res = l_tccp->numresolutions;
927 }
928
929 /* use custom size for precincts*/
930 l_level_no = l_tccp->numresolutions;
931 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
932 OPJ_UINT32 l_dx, l_dy;
933
934 --l_level_no;
935
936 /* precinct width and height*/
937 l_pdx = l_tccp->prcw[resno];
938 l_pdy = l_tccp->prch[resno];
939 *lResolutionPtr++ = l_pdx;
940 *lResolutionPtr++ = l_pdy;
941 if (l_pdx + l_level_no < 32 &&
942 l_img_comp->dx <= UINT_MAX / (1u << (l_pdx + l_level_no))) {
943 l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
944 /* take the minimum size for l_dx for each comp and resolution*/
945 *p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32) * p_dx_min, (OPJ_INT32)l_dx);
946 }
947 if (l_pdy + l_level_no < 32 &&
948 l_img_comp->dy <= UINT_MAX / (1u << (l_pdy + l_level_no))) {
949 l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
950 *p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32) * p_dy_min, (OPJ_INT32)l_dy);
951 }
952
953 /* various calculations of extents*/
954 l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
955 l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
956 l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
957 l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
958 l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
959 l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
960 l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
961 py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
962 l_pw = (l_rx0 == l_rx1) ? 0 : (OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
963 l_ph = (l_ry0 == l_ry1) ? 0 : (OPJ_UINT32)((py1 - l_py0) >> l_pdy);
964 *lResolutionPtr++ = l_pw;
965 *lResolutionPtr++ = l_ph;
966 l_product = l_pw * l_ph;
967
968 /* update precision*/
969 if (l_product > *p_max_prec) {
970 *p_max_prec = l_product;
971 }
972
973 }
974 ++l_tccp;
975 ++l_img_comp;
976 }
977 }
978
opj_pi_create(const opj_image_t * image,const opj_cp_t * cp,OPJ_UINT32 tileno)979 static opj_pi_iterator_t * opj_pi_create(const opj_image_t *image,
980 const opj_cp_t *cp,
981 OPJ_UINT32 tileno)
982 {
983 /* loop*/
984 OPJ_UINT32 pino, compno;
985 /* number of poc in the p_pi*/
986 OPJ_UINT32 l_poc_bound;
987
988 /* pointers to tile coding parameters and components.*/
989 opj_pi_iterator_t *l_pi = 00;
990 opj_tcp_t *tcp = 00;
991 const opj_tccp_t *tccp = 00;
992
993 /* current packet iterator being allocated*/
994 opj_pi_iterator_t *l_current_pi = 00;
995
996 /* preconditions in debug*/
997 assert(cp != 00);
998 assert(image != 00);
999 assert(tileno < cp->tw * cp->th);
1000
1001 /* initializations*/
1002 tcp = &cp->tcps[tileno];
1003 l_poc_bound = tcp->numpocs + 1;
1004
1005 /* memory allocations*/
1006 l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound),
1007 sizeof(opj_pi_iterator_t));
1008 if (!l_pi) {
1009 return NULL;
1010 }
1011
1012 l_current_pi = l_pi;
1013 for (pino = 0; pino < l_poc_bound ; ++pino) {
1014
1015 l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps,
1016 sizeof(opj_pi_comp_t));
1017 if (! l_current_pi->comps) {
1018 opj_pi_destroy(l_pi, l_poc_bound);
1019 return NULL;
1020 }
1021
1022 l_current_pi->numcomps = image->numcomps;
1023
1024 for (compno = 0; compno < image->numcomps; ++compno) {
1025 opj_pi_comp_t *comp = &l_current_pi->comps[compno];
1026
1027 tccp = &tcp->tccps[compno];
1028
1029 comp->resolutions = (opj_pi_resolution_t*) opj_calloc(tccp->numresolutions,
1030 sizeof(opj_pi_resolution_t));
1031 if (!comp->resolutions) {
1032 opj_pi_destroy(l_pi, l_poc_bound);
1033 return 00;
1034 }
1035
1036 comp->numresolutions = tccp->numresolutions;
1037 }
1038 ++l_current_pi;
1039 }
1040 return l_pi;
1041 }
1042
opj_pi_update_encode_poc_and_final(opj_cp_t * p_cp,OPJ_UINT32 p_tileno,OPJ_INT32 p_tx0,OPJ_INT32 p_tx1,OPJ_INT32 p_ty0,OPJ_INT32 p_ty1,OPJ_UINT32 p_max_prec,OPJ_UINT32 p_max_res,OPJ_UINT32 p_dx_min,OPJ_UINT32 p_dy_min)1043 static void opj_pi_update_encode_poc_and_final(opj_cp_t *p_cp,
1044 OPJ_UINT32 p_tileno,
1045 OPJ_INT32 p_tx0,
1046 OPJ_INT32 p_tx1,
1047 OPJ_INT32 p_ty0,
1048 OPJ_INT32 p_ty1,
1049 OPJ_UINT32 p_max_prec,
1050 OPJ_UINT32 p_max_res,
1051 OPJ_UINT32 p_dx_min,
1052 OPJ_UINT32 p_dy_min)
1053 {
1054 /* loop*/
1055 OPJ_UINT32 pino;
1056 /* tile coding parameter*/
1057 opj_tcp_t *l_tcp = 00;
1058 /* current poc being updated*/
1059 opj_poc_t * l_current_poc = 00;
1060
1061 /* number of pocs*/
1062 OPJ_UINT32 l_poc_bound;
1063
1064 OPJ_ARG_NOT_USED(p_max_res);
1065
1066 /* preconditions in debug*/
1067 assert(p_cp != 00);
1068 assert(p_tileno < p_cp->tw * p_cp->th);
1069
1070 /* initializations*/
1071 l_tcp = &p_cp->tcps [p_tileno];
1072 /* number of iterations in the loop */
1073 l_poc_bound = l_tcp->numpocs + 1;
1074
1075 /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
1076 store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
1077 l_current_poc = l_tcp->pocs;
1078
1079 l_current_poc->compS = l_current_poc->compno0;
1080 l_current_poc->compE = l_current_poc->compno1;
1081 l_current_poc->resS = l_current_poc->resno0;
1082 l_current_poc->resE = l_current_poc->resno1;
1083 l_current_poc->layE = l_current_poc->layno1;
1084
1085 /* special treatment for the first element*/
1086 l_current_poc->layS = 0;
1087 l_current_poc->prg = l_current_poc->prg1;
1088 l_current_poc->prcS = 0;
1089
1090 l_current_poc->prcE = p_max_prec;
1091 l_current_poc->txS = (OPJ_UINT32)p_tx0;
1092 l_current_poc->txE = (OPJ_UINT32)p_tx1;
1093 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
1094 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
1095 l_current_poc->dx = p_dx_min;
1096 l_current_poc->dy = p_dy_min;
1097
1098 ++ l_current_poc;
1099 for (pino = 1; pino < l_poc_bound ; ++pino) {
1100 l_current_poc->compS = l_current_poc->compno0;
1101 l_current_poc->compE = l_current_poc->compno1;
1102 l_current_poc->resS = l_current_poc->resno0;
1103 l_current_poc->resE = l_current_poc->resno1;
1104 l_current_poc->layE = l_current_poc->layno1;
1105 l_current_poc->prg = l_current_poc->prg1;
1106 l_current_poc->prcS = 0;
1107 /* special treatment here different from the first element*/
1108 l_current_poc->layS = (l_current_poc->layE > (l_current_poc - 1)->layE) ?
1109 l_current_poc->layE : 0;
1110
1111 l_current_poc->prcE = p_max_prec;
1112 l_current_poc->txS = (OPJ_UINT32)p_tx0;
1113 l_current_poc->txE = (OPJ_UINT32)p_tx1;
1114 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
1115 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
1116 l_current_poc->dx = p_dx_min;
1117 l_current_poc->dy = p_dy_min;
1118 ++ l_current_poc;
1119 }
1120 }
1121
opj_pi_update_encode_not_poc(opj_cp_t * p_cp,OPJ_UINT32 p_num_comps,OPJ_UINT32 p_tileno,OPJ_INT32 p_tx0,OPJ_INT32 p_tx1,OPJ_INT32 p_ty0,OPJ_INT32 p_ty1,OPJ_UINT32 p_max_prec,OPJ_UINT32 p_max_res,OPJ_UINT32 p_dx_min,OPJ_UINT32 p_dy_min)1122 static void opj_pi_update_encode_not_poc(opj_cp_t *p_cp,
1123 OPJ_UINT32 p_num_comps,
1124 OPJ_UINT32 p_tileno,
1125 OPJ_INT32 p_tx0,
1126 OPJ_INT32 p_tx1,
1127 OPJ_INT32 p_ty0,
1128 OPJ_INT32 p_ty1,
1129 OPJ_UINT32 p_max_prec,
1130 OPJ_UINT32 p_max_res,
1131 OPJ_UINT32 p_dx_min,
1132 OPJ_UINT32 p_dy_min)
1133 {
1134 /* loop*/
1135 OPJ_UINT32 pino;
1136 /* tile coding parameter*/
1137 opj_tcp_t *l_tcp = 00;
1138 /* current poc being updated*/
1139 opj_poc_t * l_current_poc = 00;
1140 /* number of pocs*/
1141 OPJ_UINT32 l_poc_bound;
1142
1143 /* preconditions in debug*/
1144 assert(p_cp != 00);
1145 assert(p_tileno < p_cp->tw * p_cp->th);
1146
1147 /* initializations*/
1148 l_tcp = &p_cp->tcps [p_tileno];
1149
1150 /* number of iterations in the loop */
1151 l_poc_bound = l_tcp->numpocs + 1;
1152
1153 /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
1154 store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
1155 l_current_poc = l_tcp->pocs;
1156
1157 for (pino = 0; pino < l_poc_bound ; ++pino) {
1158 l_current_poc->compS = 0;
1159 l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
1160 l_current_poc->resS = 0;
1161 l_current_poc->resE = p_max_res;
1162 l_current_poc->layS = 0;
1163 l_current_poc->layE = l_tcp->numlayers;
1164 l_current_poc->prg = l_tcp->prg;
1165 l_current_poc->prcS = 0;
1166 l_current_poc->prcE = p_max_prec;
1167 l_current_poc->txS = (OPJ_UINT32)p_tx0;
1168 l_current_poc->txE = (OPJ_UINT32)p_tx1;
1169 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
1170 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
1171 l_current_poc->dx = p_dx_min;
1172 l_current_poc->dy = p_dy_min;
1173 ++ l_current_poc;
1174 }
1175 }
1176
opj_pi_update_decode_poc(opj_pi_iterator_t * p_pi,opj_tcp_t * p_tcp,OPJ_UINT32 p_max_precision,OPJ_UINT32 p_max_res)1177 static void opj_pi_update_decode_poc(opj_pi_iterator_t * p_pi,
1178 opj_tcp_t * p_tcp,
1179 OPJ_UINT32 p_max_precision,
1180 OPJ_UINT32 p_max_res)
1181 {
1182 /* loop*/
1183 OPJ_UINT32 pino;
1184
1185 /* encoding prameters to set*/
1186 OPJ_UINT32 l_bound;
1187
1188 opj_pi_iterator_t * l_current_pi = 00;
1189 opj_poc_t* l_current_poc = 0;
1190
1191 OPJ_ARG_NOT_USED(p_max_res);
1192
1193 /* preconditions in debug*/
1194 assert(p_pi != 00);
1195 assert(p_tcp != 00);
1196
1197 /* initializations*/
1198 l_bound = p_tcp->numpocs + 1;
1199 l_current_pi = p_pi;
1200 l_current_poc = p_tcp->pocs;
1201
1202 for (pino = 0; pino < l_bound; ++pino) {
1203 l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
1204 l_current_pi->first = 1;
1205
1206 l_current_pi->poc.resno0 =
1207 l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
1208 l_current_pi->poc.compno0 =
1209 l_current_poc->compno0; /* Component Index #0 (Start) */
1210 l_current_pi->poc.layno0 = 0;
1211 l_current_pi->poc.precno0 = 0;
1212 l_current_pi->poc.resno1 =
1213 l_current_poc->resno1; /* Resolution Level Index #0 (End) */
1214 l_current_pi->poc.compno1 =
1215 l_current_poc->compno1; /* Component Index #0 (End) */
1216 l_current_pi->poc.layno1 = opj_uint_min(l_current_poc->layno1,
1217 p_tcp->numlayers); /* Layer Index #0 (End) */
1218 l_current_pi->poc.precno1 = p_max_precision;
1219 ++l_current_pi;
1220 ++l_current_poc;
1221 }
1222 }
1223
opj_pi_update_decode_not_poc(opj_pi_iterator_t * p_pi,opj_tcp_t * p_tcp,OPJ_UINT32 p_max_precision,OPJ_UINT32 p_max_res)1224 static void opj_pi_update_decode_not_poc(opj_pi_iterator_t * p_pi,
1225 opj_tcp_t * p_tcp,
1226 OPJ_UINT32 p_max_precision,
1227 OPJ_UINT32 p_max_res)
1228 {
1229 /* loop*/
1230 OPJ_UINT32 pino;
1231
1232 /* encoding prameters to set*/
1233 OPJ_UINT32 l_bound;
1234
1235 opj_pi_iterator_t * l_current_pi = 00;
1236 /* preconditions in debug*/
1237 assert(p_tcp != 00);
1238 assert(p_pi != 00);
1239
1240 /* initializations*/
1241 l_bound = p_tcp->numpocs + 1;
1242 l_current_pi = p_pi;
1243
1244 for (pino = 0; pino < l_bound; ++pino) {
1245 l_current_pi->poc.prg = p_tcp->prg;
1246 l_current_pi->first = 1;
1247 l_current_pi->poc.resno0 = 0;
1248 l_current_pi->poc.compno0 = 0;
1249 l_current_pi->poc.layno0 = 0;
1250 l_current_pi->poc.precno0 = 0;
1251 l_current_pi->poc.resno1 = p_max_res;
1252 l_current_pi->poc.compno1 = l_current_pi->numcomps;
1253 l_current_pi->poc.layno1 = p_tcp->numlayers;
1254 l_current_pi->poc.precno1 = p_max_precision;
1255 ++l_current_pi;
1256 }
1257 }
1258
1259
1260
opj_pi_check_next_level(OPJ_INT32 pos,opj_cp_t * cp,OPJ_UINT32 tileno,OPJ_UINT32 pino,const OPJ_CHAR * prog)1261 static OPJ_BOOL opj_pi_check_next_level(OPJ_INT32 pos,
1262 opj_cp_t *cp,
1263 OPJ_UINT32 tileno,
1264 OPJ_UINT32 pino,
1265 const OPJ_CHAR *prog)
1266 {
1267 OPJ_INT32 i;
1268 opj_tcp_t *tcps = &cp->tcps[tileno];
1269 opj_poc_t *tcp = &tcps->pocs[pino];
1270
1271 if (pos >= 0) {
1272 for (i = pos; pos >= 0; i--) {
1273 switch (prog[i]) {
1274 case 'R':
1275 if (tcp->res_t == tcp->resE) {
1276 if (opj_pi_check_next_level(pos - 1, cp, tileno, pino, prog)) {
1277 return OPJ_TRUE;
1278 } else {
1279 return OPJ_FALSE;
1280 }
1281 } else {
1282 return OPJ_TRUE;
1283 }
1284 break;
1285 case 'C':
1286 if (tcp->comp_t == tcp->compE) {
1287 if (opj_pi_check_next_level(pos - 1, cp, tileno, pino, prog)) {
1288 return OPJ_TRUE;
1289 } else {
1290 return OPJ_FALSE;
1291 }
1292 } else {
1293 return OPJ_TRUE;
1294 }
1295 break;
1296 case 'L':
1297 if (tcp->lay_t == tcp->layE) {
1298 if (opj_pi_check_next_level(pos - 1, cp, tileno, pino, prog)) {
1299 return OPJ_TRUE;
1300 } else {
1301 return OPJ_FALSE;
1302 }
1303 } else {
1304 return OPJ_TRUE;
1305 }
1306 break;
1307 case 'P':
1308 switch (tcp->prg) {
1309 case OPJ_LRCP: /* fall through */
1310 case OPJ_RLCP:
1311 if (tcp->prc_t == tcp->prcE) {
1312 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1313 return OPJ_TRUE;
1314 } else {
1315 return OPJ_FALSE;
1316 }
1317 } else {
1318 return OPJ_TRUE;
1319 }
1320 break;
1321 default:
1322 if (tcp->tx0_t == tcp->txE) {
1323 /*TY*/
1324 if (tcp->ty0_t == tcp->tyE) {
1325 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1326 return OPJ_TRUE;
1327 } else {
1328 return OPJ_FALSE;
1329 }
1330 } else {
1331 return OPJ_TRUE;
1332 }/*TY*/
1333 } else {
1334 return OPJ_TRUE;
1335 }
1336 break;
1337 }/*end case P*/
1338 }/*end switch*/
1339 }/*end for*/
1340 }/*end if*/
1341 return OPJ_FALSE;
1342 }
1343
1344
1345 /*
1346 ==========================================================
1347 Packet iterator interface
1348 ==========================================================
1349 */
opj_pi_create_decode(opj_image_t * p_image,opj_cp_t * p_cp,OPJ_UINT32 p_tile_no)1350 opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1351 opj_cp_t *p_cp,
1352 OPJ_UINT32 p_tile_no)
1353 {
1354 OPJ_UINT32 numcomps = p_image->numcomps;
1355
1356 /* loop */
1357 OPJ_UINT32 pino;
1358 OPJ_UINT32 compno, resno;
1359
1360 /* to store w, h, dx and dy fro all components and resolutions */
1361 OPJ_UINT32 * l_tmp_data;
1362 OPJ_UINT32 ** l_tmp_ptr;
1363
1364 /* encoding prameters to set */
1365 OPJ_UINT32 l_max_res;
1366 OPJ_UINT32 l_max_prec;
1367 OPJ_INT32 l_tx0, l_tx1, l_ty0, l_ty1;
1368 OPJ_UINT32 l_dx_min, l_dy_min;
1369 OPJ_UINT32 l_bound;
1370 OPJ_UINT32 l_step_p, l_step_c, l_step_r, l_step_l ;
1371 OPJ_UINT32 l_data_stride;
1372
1373 /* pointers */
1374 opj_pi_iterator_t *l_pi = 00;
1375 opj_tcp_t *l_tcp = 00;
1376 const opj_tccp_t *l_tccp = 00;
1377 opj_pi_comp_t *l_current_comp = 00;
1378 opj_image_comp_t * l_img_comp = 00;
1379 opj_pi_iterator_t * l_current_pi = 00;
1380 OPJ_UINT32 * l_encoding_value_ptr = 00;
1381
1382 /* preconditions in debug */
1383 assert(p_cp != 00);
1384 assert(p_image != 00);
1385 assert(p_tile_no < p_cp->tw * p_cp->th);
1386
1387 /* initializations */
1388 l_tcp = &p_cp->tcps[p_tile_no];
1389 l_bound = l_tcp->numpocs + 1;
1390
1391 l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1392 l_tmp_data = (OPJ_UINT32*)opj_malloc(
1393 l_data_stride * numcomps * sizeof(OPJ_UINT32));
1394 if
1395 (! l_tmp_data) {
1396 return 00;
1397 }
1398 l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1399 numcomps * sizeof(OPJ_UINT32 *));
1400 if
1401 (! 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
1417 (compno = 0; compno < numcomps; ++compno) {
1418 l_tmp_ptr[compno] = l_encoding_value_ptr;
1419 l_encoding_value_ptr += l_data_stride;
1420 }
1421 /* get encoding parameters */
1422 opj_get_all_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1,
1423 &l_ty0, &l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res, l_tmp_ptr);
1424
1425 /* step calculations */
1426 l_step_p = 1;
1427 l_step_c = l_max_prec * l_step_p;
1428 l_step_r = numcomps * l_step_c;
1429 l_step_l = l_max_res * l_step_r;
1430
1431 /* set values for first packet iterator */
1432 l_current_pi = l_pi;
1433
1434 /* memory allocation for include */
1435 /* prevent an integer overflow issue */
1436 /* 0 < l_tcp->numlayers < 65536 c.f. opj_j2k_read_cod in j2k.c */
1437 l_current_pi->include = 00;
1438 if (l_step_l <= (UINT_MAX / (l_tcp->numlayers + 1U))) {
1439 l_current_pi->include_size = (l_tcp->numlayers + 1U) * l_step_l;
1440 l_current_pi->include = (OPJ_INT16*) opj_calloc(
1441 l_current_pi->include_size, sizeof(OPJ_INT16));
1442 }
1443
1444 if (!l_current_pi->include) {
1445 opj_free(l_tmp_data);
1446 opj_free(l_tmp_ptr);
1447 opj_pi_destroy(l_pi, l_bound);
1448 return 00;
1449 }
1450
1451 /* special treatment for the first packet iterator */
1452 l_current_comp = l_current_pi->comps;
1453 l_img_comp = p_image->comps;
1454 l_tccp = l_tcp->tccps;
1455
1456 l_current_pi->tx0 = l_tx0;
1457 l_current_pi->ty0 = l_ty0;
1458 l_current_pi->tx1 = l_tx1;
1459 l_current_pi->ty1 = l_ty1;
1460
1461 /*l_current_pi->dx = l_img_comp->dx;*/
1462 /*l_current_pi->dy = l_img_comp->dy;*/
1463
1464 l_current_pi->step_p = l_step_p;
1465 l_current_pi->step_c = l_step_c;
1466 l_current_pi->step_r = l_step_r;
1467 l_current_pi->step_l = l_step_l;
1468
1469 /* allocation for components and number of components has already been calculated by opj_pi_create */
1470 for
1471 (compno = 0; compno < numcomps; ++compno) {
1472 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1473 l_encoding_value_ptr = l_tmp_ptr[compno];
1474
1475 l_current_comp->dx = l_img_comp->dx;
1476 l_current_comp->dy = l_img_comp->dy;
1477 /* resolutions have already been initialized */
1478 for
1479 (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1480 l_res->pdx = *(l_encoding_value_ptr++);
1481 l_res->pdy = *(l_encoding_value_ptr++);
1482 l_res->pw = *(l_encoding_value_ptr++);
1483 l_res->ph = *(l_encoding_value_ptr++);
1484 ++l_res;
1485 }
1486 ++l_current_comp;
1487 ++l_img_comp;
1488 ++l_tccp;
1489 }
1490 ++l_current_pi;
1491
1492 for (pino = 1 ; pino < l_bound ; ++pino) {
1493 l_current_comp = l_current_pi->comps;
1494 l_img_comp = p_image->comps;
1495 l_tccp = l_tcp->tccps;
1496
1497 l_current_pi->tx0 = l_tx0;
1498 l_current_pi->ty0 = l_ty0;
1499 l_current_pi->tx1 = l_tx1;
1500 l_current_pi->ty1 = l_ty1;
1501 /*l_current_pi->dx = l_dx_min;*/
1502 /*l_current_pi->dy = l_dy_min;*/
1503 l_current_pi->step_p = l_step_p;
1504 l_current_pi->step_c = l_step_c;
1505 l_current_pi->step_r = l_step_r;
1506 l_current_pi->step_l = l_step_l;
1507
1508 /* allocation for components and number of components has already been calculated by opj_pi_create */
1509 for
1510 (compno = 0; compno < numcomps; ++compno) {
1511 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1512 l_encoding_value_ptr = l_tmp_ptr[compno];
1513
1514 l_current_comp->dx = l_img_comp->dx;
1515 l_current_comp->dy = l_img_comp->dy;
1516 /* resolutions have already been initialized */
1517 for
1518 (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1519 l_res->pdx = *(l_encoding_value_ptr++);
1520 l_res->pdy = *(l_encoding_value_ptr++);
1521 l_res->pw = *(l_encoding_value_ptr++);
1522 l_res->ph = *(l_encoding_value_ptr++);
1523 ++l_res;
1524 }
1525 ++l_current_comp;
1526 ++l_img_comp;
1527 ++l_tccp;
1528 }
1529 /* special treatment*/
1530 l_current_pi->include = (l_current_pi - 1)->include;
1531 l_current_pi->include_size = (l_current_pi - 1)->include_size;
1532 ++l_current_pi;
1533 }
1534 opj_free(l_tmp_data);
1535 l_tmp_data = 00;
1536 opj_free(l_tmp_ptr);
1537 l_tmp_ptr = 00;
1538 if
1539 (l_tcp->POC) {
1540 opj_pi_update_decode_poc(l_pi, l_tcp, l_max_prec, l_max_res);
1541 } else {
1542 opj_pi_update_decode_not_poc(l_pi, l_tcp, l_max_prec, l_max_res);
1543 }
1544 return l_pi;
1545 }
1546
1547
1548
opj_pi_initialise_encode(const opj_image_t * p_image,opj_cp_t * p_cp,OPJ_UINT32 p_tile_no,J2K_T2_MODE p_t2_mode)1549 opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1550 opj_cp_t *p_cp,
1551 OPJ_UINT32 p_tile_no,
1552 J2K_T2_MODE p_t2_mode)
1553 {
1554 OPJ_UINT32 numcomps = p_image->numcomps;
1555
1556 /* loop*/
1557 OPJ_UINT32 pino;
1558 OPJ_UINT32 compno, resno;
1559
1560 /* to store w, h, dx and dy fro all components and resolutions*/
1561 OPJ_UINT32 * l_tmp_data;
1562 OPJ_UINT32 ** l_tmp_ptr;
1563
1564 /* encoding prameters to set*/
1565 OPJ_UINT32 l_max_res;
1566 OPJ_UINT32 l_max_prec;
1567 OPJ_INT32 l_tx0, l_tx1, l_ty0, l_ty1;
1568 OPJ_UINT32 l_dx_min, l_dy_min;
1569 OPJ_UINT32 l_bound;
1570 OPJ_UINT32 l_step_p, l_step_c, l_step_r, l_step_l ;
1571 OPJ_UINT32 l_data_stride;
1572
1573 /* pointers*/
1574 opj_pi_iterator_t *l_pi = 00;
1575 opj_tcp_t *l_tcp = 00;
1576 const opj_tccp_t *l_tccp = 00;
1577 opj_pi_comp_t *l_current_comp = 00;
1578 opj_image_comp_t * l_img_comp = 00;
1579 opj_pi_iterator_t * l_current_pi = 00;
1580 OPJ_UINT32 * l_encoding_value_ptr = 00;
1581
1582 /* preconditions in debug*/
1583 assert(p_cp != 00);
1584 assert(p_image != 00);
1585 assert(p_tile_no < p_cp->tw * p_cp->th);
1586
1587 /* initializations*/
1588 l_tcp = &p_cp->tcps[p_tile_no];
1589 l_bound = l_tcp->numpocs + 1;
1590
1591 l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1592 l_tmp_data = (OPJ_UINT32*)opj_malloc(
1593 l_data_stride * numcomps * sizeof(OPJ_UINT32));
1594 if (! l_tmp_data) {
1595 return 00;
1596 }
1597
1598 l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1599 numcomps * sizeof(OPJ_UINT32 *));
1600 if (! l_tmp_ptr) {
1601 opj_free(l_tmp_data);
1602 return 00;
1603 }
1604
1605 /* memory allocation for pi*/
1606 l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1607 if (!l_pi) {
1608 opj_free(l_tmp_data);
1609 opj_free(l_tmp_ptr);
1610 return 00;
1611 }
1612
1613 l_encoding_value_ptr = l_tmp_data;
1614 /* update pointer array*/
1615 for (compno = 0; compno < numcomps; ++compno) {
1616 l_tmp_ptr[compno] = l_encoding_value_ptr;
1617 l_encoding_value_ptr += l_data_stride;
1618 }
1619
1620 /* get encoding parameters*/
1621 opj_get_all_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1,
1622 &l_ty0, &l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res, l_tmp_ptr);
1623
1624 /* step calculations*/
1625 l_step_p = 1;
1626 l_step_c = l_max_prec * l_step_p;
1627 l_step_r = numcomps * l_step_c;
1628 l_step_l = l_max_res * l_step_r;
1629
1630 /* set values for first packet iterator*/
1631 l_pi->tp_on = (OPJ_BYTE)p_cp->m_specific_param.m_enc.m_tp_on;
1632 l_current_pi = l_pi;
1633
1634 /* memory allocation for include*/
1635 l_current_pi->include_size = l_tcp->numlayers * l_step_l;
1636 l_current_pi->include = (OPJ_INT16*) opj_calloc(l_current_pi->include_size,
1637 sizeof(OPJ_INT16));
1638 if (!l_current_pi->include) {
1639 opj_free(l_tmp_data);
1640 opj_free(l_tmp_ptr);
1641 opj_pi_destroy(l_pi, l_bound);
1642 return 00;
1643 }
1644
1645 /* special treatment for the first packet iterator*/
1646 l_current_comp = l_current_pi->comps;
1647 l_img_comp = p_image->comps;
1648 l_tccp = l_tcp->tccps;
1649 l_current_pi->tx0 = l_tx0;
1650 l_current_pi->ty0 = l_ty0;
1651 l_current_pi->tx1 = l_tx1;
1652 l_current_pi->ty1 = l_ty1;
1653 l_current_pi->dx = l_dx_min;
1654 l_current_pi->dy = l_dy_min;
1655 l_current_pi->step_p = l_step_p;
1656 l_current_pi->step_c = l_step_c;
1657 l_current_pi->step_r = l_step_r;
1658 l_current_pi->step_l = l_step_l;
1659
1660 /* allocation for components and number of components has already been calculated by opj_pi_create */
1661 for (compno = 0; compno < numcomps; ++compno) {
1662 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1663 l_encoding_value_ptr = l_tmp_ptr[compno];
1664
1665 l_current_comp->dx = l_img_comp->dx;
1666 l_current_comp->dy = l_img_comp->dy;
1667
1668 /* resolutions have already been initialized */
1669 for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1670 l_res->pdx = *(l_encoding_value_ptr++);
1671 l_res->pdy = *(l_encoding_value_ptr++);
1672 l_res->pw = *(l_encoding_value_ptr++);
1673 l_res->ph = *(l_encoding_value_ptr++);
1674 ++l_res;
1675 }
1676
1677 ++l_current_comp;
1678 ++l_img_comp;
1679 ++l_tccp;
1680 }
1681 ++l_current_pi;
1682
1683 for (pino = 1 ; pino < l_bound ; ++pino) {
1684 l_current_comp = l_current_pi->comps;
1685 l_img_comp = p_image->comps;
1686 l_tccp = l_tcp->tccps;
1687
1688 l_current_pi->tx0 = l_tx0;
1689 l_current_pi->ty0 = l_ty0;
1690 l_current_pi->tx1 = l_tx1;
1691 l_current_pi->ty1 = l_ty1;
1692 l_current_pi->dx = l_dx_min;
1693 l_current_pi->dy = l_dy_min;
1694 l_current_pi->step_p = l_step_p;
1695 l_current_pi->step_c = l_step_c;
1696 l_current_pi->step_r = l_step_r;
1697 l_current_pi->step_l = l_step_l;
1698
1699 /* allocation for components and number of components has already been calculated by opj_pi_create */
1700 for (compno = 0; compno < numcomps; ++compno) {
1701 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1702 l_encoding_value_ptr = l_tmp_ptr[compno];
1703
1704 l_current_comp->dx = l_img_comp->dx;
1705 l_current_comp->dy = l_img_comp->dy;
1706 /* resolutions have already been initialized */
1707 for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1708 l_res->pdx = *(l_encoding_value_ptr++);
1709 l_res->pdy = *(l_encoding_value_ptr++);
1710 l_res->pw = *(l_encoding_value_ptr++);
1711 l_res->ph = *(l_encoding_value_ptr++);
1712 ++l_res;
1713 }
1714 ++l_current_comp;
1715 ++l_img_comp;
1716 ++l_tccp;
1717 }
1718
1719 /* special treatment*/
1720 l_current_pi->include = (l_current_pi - 1)->include;
1721 l_current_pi->include_size = (l_current_pi - 1)->include_size;
1722 ++l_current_pi;
1723 }
1724
1725 opj_free(l_tmp_data);
1726 l_tmp_data = 00;
1727 opj_free(l_tmp_ptr);
1728 l_tmp_ptr = 00;
1729
1730 if (l_tcp->POC && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
1731 opj_pi_update_encode_poc_and_final(p_cp, p_tile_no, l_tx0, l_tx1, l_ty0, l_ty1,
1732 l_max_prec, l_max_res, l_dx_min, l_dy_min);
1733 } else {
1734 opj_pi_update_encode_not_poc(p_cp, numcomps, p_tile_no, l_tx0, l_tx1,
1735 l_ty0, l_ty1, l_max_prec, l_max_res, l_dx_min, l_dy_min);
1736 }
1737
1738 return l_pi;
1739 }
1740
opj_pi_create_encode(opj_pi_iterator_t * pi,opj_cp_t * cp,OPJ_UINT32 tileno,OPJ_UINT32 pino,OPJ_UINT32 tpnum,OPJ_INT32 tppos,J2K_T2_MODE t2_mode)1741 void opj_pi_create_encode(opj_pi_iterator_t *pi,
1742 opj_cp_t *cp,
1743 OPJ_UINT32 tileno,
1744 OPJ_UINT32 pino,
1745 OPJ_UINT32 tpnum,
1746 OPJ_INT32 tppos,
1747 J2K_T2_MODE t2_mode)
1748 {
1749 const OPJ_CHAR *prog;
1750 OPJ_INT32 i;
1751 OPJ_UINT32 incr_top = 1, resetX = 0;
1752 opj_tcp_t *tcps = &cp->tcps[tileno];
1753 opj_poc_t *tcp = &tcps->pocs[pino];
1754
1755 prog = opj_j2k_convert_progression_order(tcp->prg);
1756
1757 pi[pino].first = 1;
1758 pi[pino].poc.prg = tcp->prg;
1759
1760 if (!(cp->m_specific_param.m_enc.m_tp_on && ((!OPJ_IS_CINEMA(cp->rsiz) &&
1761 (t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz)))) {
1762 pi[pino].poc.resno0 = tcp->resS;
1763 pi[pino].poc.resno1 = tcp->resE;
1764 pi[pino].poc.compno0 = tcp->compS;
1765 pi[pino].poc.compno1 = tcp->compE;
1766 pi[pino].poc.layno0 = tcp->layS;
1767 pi[pino].poc.layno1 = tcp->layE;
1768 pi[pino].poc.precno0 = tcp->prcS;
1769 pi[pino].poc.precno1 = tcp->prcE;
1770 pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1771 pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1772 pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1773 pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1774 } else {
1775 for (i = tppos + 1; i < 4; i++) {
1776 switch (prog[i]) {
1777 case 'R':
1778 pi[pino].poc.resno0 = tcp->resS;
1779 pi[pino].poc.resno1 = tcp->resE;
1780 break;
1781 case 'C':
1782 pi[pino].poc.compno0 = tcp->compS;
1783 pi[pino].poc.compno1 = tcp->compE;
1784 break;
1785 case 'L':
1786 pi[pino].poc.layno0 = tcp->layS;
1787 pi[pino].poc.layno1 = tcp->layE;
1788 break;
1789 case 'P':
1790 switch (tcp->prg) {
1791 case OPJ_LRCP:
1792 case OPJ_RLCP:
1793 pi[pino].poc.precno0 = tcp->prcS;
1794 pi[pino].poc.precno1 = tcp->prcE;
1795 break;
1796 default:
1797 pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1798 pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1799 pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1800 pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1801 break;
1802 }
1803 break;
1804 }
1805 }
1806
1807 if (tpnum == 0) {
1808 for (i = tppos; i >= 0; i--) {
1809 switch (prog[i]) {
1810 case 'C':
1811 tcp->comp_t = tcp->compS;
1812 pi[pino].poc.compno0 = tcp->comp_t;
1813 pi[pino].poc.compno1 = tcp->comp_t + 1;
1814 tcp->comp_t += 1;
1815 break;
1816 case 'R':
1817 tcp->res_t = tcp->resS;
1818 pi[pino].poc.resno0 = tcp->res_t;
1819 pi[pino].poc.resno1 = tcp->res_t + 1;
1820 tcp->res_t += 1;
1821 break;
1822 case 'L':
1823 tcp->lay_t = tcp->layS;
1824 pi[pino].poc.layno0 = tcp->lay_t;
1825 pi[pino].poc.layno1 = tcp->lay_t + 1;
1826 tcp->lay_t += 1;
1827 break;
1828 case 'P':
1829 switch (tcp->prg) {
1830 case OPJ_LRCP:
1831 case OPJ_RLCP:
1832 tcp->prc_t = tcp->prcS;
1833 pi[pino].poc.precno0 = tcp->prc_t;
1834 pi[pino].poc.precno1 = tcp->prc_t + 1;
1835 tcp->prc_t += 1;
1836 break;
1837 default:
1838 tcp->tx0_t = tcp->txS;
1839 tcp->ty0_t = tcp->tyS;
1840 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1841 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1842 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1843 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1844 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1845 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1846 break;
1847 }
1848 break;
1849 }
1850 }
1851 incr_top = 1;
1852 } else {
1853 for (i = tppos; i >= 0; i--) {
1854 switch (prog[i]) {
1855 case 'C':
1856 pi[pino].poc.compno0 = tcp->comp_t - 1;
1857 pi[pino].poc.compno1 = tcp->comp_t;
1858 break;
1859 case 'R':
1860 pi[pino].poc.resno0 = tcp->res_t - 1;
1861 pi[pino].poc.resno1 = tcp->res_t;
1862 break;
1863 case 'L':
1864 pi[pino].poc.layno0 = tcp->lay_t - 1;
1865 pi[pino].poc.layno1 = tcp->lay_t;
1866 break;
1867 case 'P':
1868 switch (tcp->prg) {
1869 case OPJ_LRCP:
1870 case OPJ_RLCP:
1871 pi[pino].poc.precno0 = tcp->prc_t - 1;
1872 pi[pino].poc.precno1 = tcp->prc_t;
1873 break;
1874 default:
1875 pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
1876 pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
1877 pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
1878 pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
1879 break;
1880 }
1881 break;
1882 }
1883 if (incr_top == 1) {
1884 switch (prog[i]) {
1885 case 'R':
1886 if (tcp->res_t == tcp->resE) {
1887 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1888 tcp->res_t = tcp->resS;
1889 pi[pino].poc.resno0 = tcp->res_t;
1890 pi[pino].poc.resno1 = tcp->res_t + 1;
1891 tcp->res_t += 1;
1892 incr_top = 1;
1893 } else {
1894 incr_top = 0;
1895 }
1896 } else {
1897 pi[pino].poc.resno0 = tcp->res_t;
1898 pi[pino].poc.resno1 = tcp->res_t + 1;
1899 tcp->res_t += 1;
1900 incr_top = 0;
1901 }
1902 break;
1903 case 'C':
1904 if (tcp->comp_t == tcp->compE) {
1905 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1906 tcp->comp_t = tcp->compS;
1907 pi[pino].poc.compno0 = tcp->comp_t;
1908 pi[pino].poc.compno1 = tcp->comp_t + 1;
1909 tcp->comp_t += 1;
1910 incr_top = 1;
1911 } else {
1912 incr_top = 0;
1913 }
1914 } else {
1915 pi[pino].poc.compno0 = tcp->comp_t;
1916 pi[pino].poc.compno1 = tcp->comp_t + 1;
1917 tcp->comp_t += 1;
1918 incr_top = 0;
1919 }
1920 break;
1921 case 'L':
1922 if (tcp->lay_t == tcp->layE) {
1923 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1924 tcp->lay_t = tcp->layS;
1925 pi[pino].poc.layno0 = tcp->lay_t;
1926 pi[pino].poc.layno1 = tcp->lay_t + 1;
1927 tcp->lay_t += 1;
1928 incr_top = 1;
1929 } else {
1930 incr_top = 0;
1931 }
1932 } else {
1933 pi[pino].poc.layno0 = tcp->lay_t;
1934 pi[pino].poc.layno1 = tcp->lay_t + 1;
1935 tcp->lay_t += 1;
1936 incr_top = 0;
1937 }
1938 break;
1939 case 'P':
1940 switch (tcp->prg) {
1941 case OPJ_LRCP:
1942 case OPJ_RLCP:
1943 if (tcp->prc_t == tcp->prcE) {
1944 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1945 tcp->prc_t = tcp->prcS;
1946 pi[pino].poc.precno0 = tcp->prc_t;
1947 pi[pino].poc.precno1 = tcp->prc_t + 1;
1948 tcp->prc_t += 1;
1949 incr_top = 1;
1950 } else {
1951 incr_top = 0;
1952 }
1953 } else {
1954 pi[pino].poc.precno0 = tcp->prc_t;
1955 pi[pino].poc.precno1 = tcp->prc_t + 1;
1956 tcp->prc_t += 1;
1957 incr_top = 0;
1958 }
1959 break;
1960 default:
1961 if (tcp->tx0_t >= tcp->txE) {
1962 if (tcp->ty0_t >= tcp->tyE) {
1963 if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
1964 tcp->ty0_t = tcp->tyS;
1965 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1966 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1967 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1968 incr_top = 1;
1969 resetX = 1;
1970 } else {
1971 incr_top = 0;
1972 resetX = 0;
1973 }
1974 } else {
1975 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1976 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1977 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1978 incr_top = 0;
1979 resetX = 1;
1980 }
1981 if (resetX == 1) {
1982 tcp->tx0_t = tcp->txS;
1983 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1984 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1985 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1986 }
1987 } else {
1988 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1989 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1990 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1991 incr_top = 0;
1992 }
1993 break;
1994 }
1995 break;
1996 }
1997 }
1998 }
1999 }
2000 }
2001 }
2002
opj_pi_destroy(opj_pi_iterator_t * p_pi,OPJ_UINT32 p_nb_elements)2003 void opj_pi_destroy(opj_pi_iterator_t *p_pi,
2004 OPJ_UINT32 p_nb_elements)
2005 {
2006 OPJ_UINT32 compno, pino;
2007 opj_pi_iterator_t *l_current_pi = p_pi;
2008 if (p_pi) {
2009 if (p_pi->include) {
2010 opj_free(p_pi->include);
2011 p_pi->include = 00;
2012 }
2013 for (pino = 0; pino < p_nb_elements; ++pino) {
2014 if (l_current_pi->comps) {
2015 opj_pi_comp_t *l_current_component = l_current_pi->comps;
2016 for (compno = 0; compno < l_current_pi->numcomps; compno++) {
2017 if (l_current_component->resolutions) {
2018 opj_free(l_current_component->resolutions);
2019 l_current_component->resolutions = 00;
2020 }
2021
2022 ++l_current_component;
2023 }
2024 opj_free(l_current_pi->comps);
2025 l_current_pi->comps = 0;
2026 }
2027 ++l_current_pi;
2028 }
2029 opj_free(p_pi);
2030 }
2031 }
2032
2033
2034
opj_pi_update_encoding_parameters(const opj_image_t * p_image,opj_cp_t * p_cp,OPJ_UINT32 p_tile_no)2035 void opj_pi_update_encoding_parameters(const opj_image_t *p_image,
2036 opj_cp_t *p_cp,
2037 OPJ_UINT32 p_tile_no)
2038 {
2039 /* encoding parameters to set */
2040 OPJ_UINT32 l_max_res;
2041 OPJ_UINT32 l_max_prec;
2042 OPJ_INT32 l_tx0, l_tx1, l_ty0, l_ty1;
2043 OPJ_UINT32 l_dx_min, l_dy_min;
2044
2045 /* pointers */
2046 opj_tcp_t *l_tcp = 00;
2047
2048 /* preconditions */
2049 assert(p_cp != 00);
2050 assert(p_image != 00);
2051 assert(p_tile_no < p_cp->tw * p_cp->th);
2052
2053 l_tcp = &(p_cp->tcps[p_tile_no]);
2054
2055 /* get encoding parameters */
2056 opj_get_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1, &l_ty0,
2057 &l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res);
2058
2059 if (l_tcp->POC) {
2060 opj_pi_update_encode_poc_and_final(p_cp, p_tile_no, l_tx0, l_tx1, l_ty0, l_ty1,
2061 l_max_prec, l_max_res, l_dx_min, l_dy_min);
2062 } else {
2063 opj_pi_update_encode_not_poc(p_cp, p_image->numcomps, p_tile_no, l_tx0, l_tx1,
2064 l_ty0, l_ty1, l_max_prec, l_max_res, l_dx_min, l_dy_min);
2065 }
2066 }
2067
opj_pi_next(opj_pi_iterator_t * pi)2068 OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi)
2069 {
2070 switch (pi->poc.prg) {
2071 case OPJ_LRCP:
2072 return opj_pi_next_lrcp(pi);
2073 case OPJ_RLCP:
2074 return opj_pi_next_rlcp(pi);
2075 case OPJ_RPCL:
2076 return opj_pi_next_rpcl(pi);
2077 case OPJ_PCRL:
2078 return opj_pi_next_pcrl(pi);
2079 case OPJ_CPRL:
2080 return opj_pi_next_cprl(pi);
2081 case OPJ_PROG_UNKNOWN:
2082 return OPJ_FALSE;
2083 }
2084
2085 return OPJ_FALSE;
2086 }
2087