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comparison mupdf-source/thirdparty/openjpeg/src/lib/openjp2/jp2.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
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) 2010-2011, Kaori Hagihara
15 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
16 * Copyright (c) 2012, CS Systemes d'Information, France
17 * All rights reserved.
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
32 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40 #include "opj_includes.h"
41
42 /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
43 /*@{*/
44
45 #define OPJ_BOX_SIZE 1024
46
47 #define OPJ_UNUSED(x) (void)x
48
49 /** @name Local static functions */
50 /*@{*/
51
52 /*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
53
54 /**
55 * Reads a IHDR box - Image Header box
56 *
57 * @param p_image_header_data pointer to actual data (already read from file)
58 * @param jp2 the jpeg2000 file codec.
59 * @param p_image_header_size the size of the image header
60 * @param p_manager the user event manager.
61 *
62 * @return true if the image header is valid, false else.
63 */
64 static OPJ_BOOL opj_jp2_read_ihdr(opj_jp2_t *jp2,
65 OPJ_BYTE *p_image_header_data,
66 OPJ_UINT32 p_image_header_size,
67 opj_event_mgr_t * p_manager);
68
69 /**
70 * Writes the Image Header box - Image Header box.
71 *
72 * @param jp2 jpeg2000 file codec.
73 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
74 *
75 * @return the data being copied.
76 */
77 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
78 OPJ_UINT32 * p_nb_bytes_written);
79
80 /**
81 * Writes the Bit per Component box.
82 *
83 * @param jp2 jpeg2000 file codec.
84 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
85 *
86 * @return the data being copied.
87 */
88 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
89 OPJ_UINT32 * p_nb_bytes_written);
90
91 /**
92 * Reads a Bit per Component box.
93 *
94 * @param p_bpc_header_data pointer to actual data (already read from file)
95 * @param jp2 the jpeg2000 file codec.
96 * @param p_bpc_header_size the size of the bpc header
97 * @param p_manager the user event manager.
98 *
99 * @return true if the bpc header is valid, false else.
100 */
101 static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
102 OPJ_BYTE * p_bpc_header_data,
103 OPJ_UINT32 p_bpc_header_size,
104 opj_event_mgr_t * p_manager);
105
106 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
107 OPJ_BYTE * p_cdef_header_data,
108 OPJ_UINT32 p_cdef_header_size,
109 opj_event_mgr_t * p_manager);
110
111 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
112 opj_event_mgr_t *);
113
114 /**
115 * Writes the Channel Definition box.
116 *
117 * @param jp2 jpeg2000 file codec.
118 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
119 *
120 * @return the data being copied.
121 */
122 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
123 OPJ_UINT32 * p_nb_bytes_written);
124
125 /**
126 * Writes the Colour Specification box.
127 *
128 * @param jp2 jpeg2000 file codec.
129 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
130 *
131 * @return the data being copied.
132 */
133 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
134 OPJ_UINT32 * p_nb_bytes_written);
135
136 /**
137 * Writes a FTYP box - File type box
138 *
139 * @param cio the stream to write data to.
140 * @param jp2 the jpeg2000 file codec.
141 * @param p_manager the user event manager.
142 *
143 * @return true if writing was successful.
144 */
145 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
146 opj_stream_private_t *cio,
147 opj_event_mgr_t * p_manager);
148
149 /**
150 * Reads a a FTYP box - File type box
151 *
152 * @param p_header_data the data contained in the FTYP box.
153 * @param jp2 the jpeg2000 file codec.
154 * @param p_header_size the size of the data contained in the FTYP box.
155 * @param p_manager the user event manager.
156 *
157 * @return true if the FTYP box is valid.
158 */
159 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
160 OPJ_BYTE * p_header_data,
161 OPJ_UINT32 p_header_size,
162 opj_event_mgr_t * p_manager);
163
164 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
165 opj_stream_private_t *stream,
166 opj_event_mgr_t * p_manager);
167
168 /**
169 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
170 *
171 * @param p_header_data the data contained in the file header box.
172 * @param jp2 the jpeg2000 file codec.
173 * @param p_header_size the size of the data contained in the file header box.
174 * @param p_manager the user event manager.
175 *
176 * @return true if the JP2 Header box was successfully recognized.
177 */
178 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
179 OPJ_BYTE *p_header_data,
180 OPJ_UINT32 p_header_size,
181 opj_event_mgr_t * p_manager);
182
183 /**
184 * Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
185 *
186 * @param jp2 the jpeg2000 file codec.
187 * @param stream the stream to write data to.
188 * @param p_manager user event manager.
189 *
190 * @return true if writing was successful.
191 */
192 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
193 opj_stream_private_t *stream,
194 opj_event_mgr_t * p_manager);
195
196 /**
197 * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
198 *
199 * @param cio the stream to write data to.
200 * @param jp2 the jpeg2000 file codec.
201 * @param p_manager user event manager.
202 *
203 * @return true if writing was successful.
204 */
205 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
206 opj_stream_private_t *cio,
207 opj_event_mgr_t * p_manager);
208
209 #ifdef USE_JPIP
210 /**
211 * Write index Finder box
212 * @param cio the stream to write to.
213 * @param jp2 the jpeg2000 file codec.
214 * @param p_manager user event manager.
215 */
216 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
217 opj_stream_private_t *cio,
218 opj_event_mgr_t * p_manager);
219
220 /**
221 * Write index Finder box
222 * @param cio the stream to write to.
223 * @param jp2 the jpeg2000 file codec.
224 * @param p_manager user event manager.
225 */
226 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
227 opj_stream_private_t *cio,
228 opj_event_mgr_t * p_manager);
229
230 /**
231 * Write file Index (superbox)
232 * @param cio the stream to write to.
233 * @param jp2 the jpeg2000 file codec.
234 * @param p_manager user event manager.
235 */
236 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
237 opj_stream_private_t *cio,
238 opj_event_mgr_t * p_manager);
239 #endif /* USE_JPIP */
240
241 /**
242 * Reads a jpeg2000 file signature box.
243 *
244 * @param p_header_data the data contained in the signature box.
245 * @param jp2 the jpeg2000 file codec.
246 * @param p_header_size the size of the data contained in the signature box.
247 * @param p_manager the user event manager.
248 *
249 * @return true if the file signature box is valid.
250 */
251 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
252 OPJ_BYTE * p_header_data,
253 OPJ_UINT32 p_header_size,
254 opj_event_mgr_t * p_manager);
255
256 /**
257 * Writes a jpeg2000 file signature box.
258 *
259 * @param cio the stream to write data to.
260 * @param jp2 the jpeg2000 file codec.
261 * @param p_manager the user event manager.
262 *
263 * @return true if writing was successful.
264 */
265 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
266 opj_stream_private_t *cio,
267 opj_event_mgr_t * p_manager);
268
269 /**
270 Apply collected palette data
271 @param image Image.
272 @param color Collector for profile, cdef and pclr data.
273 @param p_manager the user event manager.
274 @return true in case of success
275 */
276 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
277 opj_jp2_color_t *color,
278 opj_event_mgr_t * p_manager);
279
280 static void opj_jp2_free_pclr(opj_jp2_color_t *color);
281
282 /**
283 * Collect palette data
284 *
285 * @param jp2 JP2 handle
286 * @param p_pclr_header_data FIXME DOC
287 * @param p_pclr_header_size FIXME DOC
288 * @param p_manager
289 *
290 * @return Returns true if successful, returns false otherwise
291 */
292 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
293 OPJ_BYTE * p_pclr_header_data,
294 OPJ_UINT32 p_pclr_header_size,
295 opj_event_mgr_t * p_manager);
296
297 /**
298 * Collect component mapping data
299 *
300 * @param jp2 JP2 handle
301 * @param p_cmap_header_data FIXME DOC
302 * @param p_cmap_header_size FIXME DOC
303 * @param p_manager FIXME DOC
304 *
305 * @return Returns true if successful, returns false otherwise
306 */
307
308 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
309 OPJ_BYTE * p_cmap_header_data,
310 OPJ_UINT32 p_cmap_header_size,
311 opj_event_mgr_t * p_manager);
312
313 /**
314 * Reads the Color Specification box.
315 *
316 * @param p_colr_header_data pointer to actual data (already read from file)
317 * @param jp2 the jpeg2000 file codec.
318 * @param p_colr_header_size the size of the color header
319 * @param p_manager the user event manager.
320 *
321 * @return true if the bpc header is valid, false else.
322 */
323 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
324 OPJ_BYTE * p_colr_header_data,
325 OPJ_UINT32 p_colr_header_size,
326 opj_event_mgr_t * p_manager);
327
328 /*@}*/
329
330 /*@}*/
331
332 /**
333 * Sets up the procedures to do on writing header after the codestream.
334 * Developers wanting to extend the library can add their own writing procedures.
335 */
336 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
337 opj_event_mgr_t * p_manager);
338
339 /**
340 * Sets up the procedures to do on reading header after the codestream.
341 * Developers wanting to extend the library can add their own writing procedures.
342 */
343 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
344 opj_event_mgr_t * p_manager);
345
346 /**
347 * Reads a jpeg2000 file header structure.
348 *
349 * @param jp2 the jpeg2000 file header structure.
350 * @param stream the stream to read data from.
351 * @param p_manager the user event manager.
352 *
353 * @return true if the box is valid.
354 */
355 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
356 opj_stream_private_t *stream,
357 opj_event_mgr_t * p_manager);
358
359 /**
360 * Executes the given procedures on the given codec.
361 *
362 * @param p_procedure_list the list of procedures to execute
363 * @param jp2 the jpeg2000 file codec to execute the procedures on.
364 * @param stream the stream to execute the procedures on.
365 * @param p_manager the user manager.
366 *
367 * @return true if all the procedures were successfully executed.
368 */
369 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
370 opj_procedure_list_t * p_procedure_list,
371 opj_stream_private_t *stream,
372 opj_event_mgr_t * p_manager);
373
374 /**
375 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
376 *
377 * @param cio the input stream to read data from.
378 * @param box the box structure to fill.
379 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
380 * @param p_manager user event manager.
381 *
382 * @return true if the box is recognized, false otherwise
383 */
384 static OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box,
385 OPJ_UINT32 * p_number_bytes_read,
386 opj_stream_private_t *cio,
387 opj_event_mgr_t * p_manager);
388
389 /**
390 * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
391 * are valid. Developers wanting to extend the library can add their own validation procedures.
392 */
393 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
394 opj_event_mgr_t * p_manager);
395
396 /**
397 * Sets up the procedures to do on writing header. Developers wanting to extend the library can add their own writing procedures.
398 */
399 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
400 opj_event_mgr_t * p_manager);
401
402 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
403 opj_stream_private_t *cio,
404 opj_event_mgr_t * p_manager);
405
406 /**
407 * Finds the image execution function related to the given box id.
408 *
409 * @param p_id the id of the handler to fetch.
410 *
411 * @return the given handler or NULL if it could not be found.
412 */
413 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
414 OPJ_UINT32 p_id);
415
416 /**
417 * Finds the execution function related to the given box id.
418 *
419 * @param p_id the id of the handler to fetch.
420 *
421 * @return the given handler or NULL if it could not be found.
422 */
423 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id);
424
425 static const opj_jp2_header_handler_t jp2_header [] = {
426 {JP2_JP, opj_jp2_read_jp},
427 {JP2_FTYP, opj_jp2_read_ftyp},
428 {JP2_JP2H, opj_jp2_read_jp2h}
429 };
430
431 static const opj_jp2_header_handler_t jp2_img_header [] = {
432 {JP2_IHDR, opj_jp2_read_ihdr},
433 {JP2_COLR, opj_jp2_read_colr},
434 {JP2_BPCC, opj_jp2_read_bpcc},
435 {JP2_PCLR, opj_jp2_read_pclr},
436 {JP2_CMAP, opj_jp2_read_cmap},
437 {JP2_CDEF, opj_jp2_read_cdef}
438
439 };
440
441 /**
442 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
443 *
444 * @param box the box structure to fill.
445 * @param p_data the character string to read data from.
446 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
447 * @param p_box_max_size the maximum number of bytes in the box.
448 * @param p_manager FIXME DOC
449 *
450 * @return true if the box is recognized, false otherwise
451 */
452 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
453 OPJ_BYTE * p_data,
454 OPJ_UINT32 * p_number_bytes_read,
455 OPJ_UINT32 p_box_max_size,
456 opj_event_mgr_t * p_manager);
457
458 /**
459 * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
460 * are valid. Developers wanting to extend the library can add their own validation procedures.
461 */
462 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
463 opj_event_mgr_t * p_manager);
464
465 /**
466 * Sets up the procedures to do on reading header.
467 * Developers wanting to extend the library can add their own writing procedures.
468 */
469 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
470 opj_event_mgr_t * p_manager);
471
472 /* ----------------------------------------------------------------------- */
473 static OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box,
474 OPJ_UINT32 * p_number_bytes_read,
475 opj_stream_private_t *cio,
476 opj_event_mgr_t * p_manager)
477 {
478 /* read header from file */
479 OPJ_BYTE l_data_header [8];
480
481 /* preconditions */
482 assert(cio != 00);
483 assert(box != 00);
484 assert(p_number_bytes_read != 00);
485 assert(p_manager != 00);
486
487 *p_number_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio, l_data_header, 8,
488 p_manager);
489 if (*p_number_bytes_read != 8) {
490 return OPJ_FALSE;
491 }
492
493 /* process read data */
494 opj_read_bytes(l_data_header, &(box->length), 4);
495 opj_read_bytes(l_data_header + 4, &(box->type), 4);
496
497 if (box->length == 0) { /* last box */
498 const OPJ_OFF_T bleft = opj_stream_get_number_byte_left(cio);
499 if (bleft > (OPJ_OFF_T)(0xFFFFFFFFU - 8U)) {
500 opj_event_msg(p_manager, EVT_ERROR,
501 "Cannot handle box sizes higher than 2^32\n");
502 return OPJ_FALSE;
503 }
504 box->length = (OPJ_UINT32)bleft + 8U;
505 assert((OPJ_OFF_T)box->length == bleft + 8);
506 return OPJ_TRUE;
507 }
508
509 /* do we have a "special very large box ?" */
510 /* read then the XLBox */
511 if (box->length == 1) {
512 OPJ_UINT32 l_xl_part_size;
513
514 OPJ_UINT32 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio,
515 l_data_header, 8, p_manager);
516 if (l_nb_bytes_read != 8) {
517 if (l_nb_bytes_read > 0) {
518 *p_number_bytes_read += l_nb_bytes_read;
519 }
520
521 return OPJ_FALSE;
522 }
523
524 *p_number_bytes_read = 16;
525 opj_read_bytes(l_data_header, &l_xl_part_size, 4);
526 if (l_xl_part_size != 0) {
527 opj_event_msg(p_manager, EVT_ERROR,
528 "Cannot handle box sizes higher than 2^32\n");
529 return OPJ_FALSE;
530 }
531 opj_read_bytes(l_data_header + 4, &(box->length), 4);
532 }
533 return OPJ_TRUE;
534 }
535
536 #if 0
537 static void jp2_write_url(opj_cio_t *cio, char *Idx_file)
538 {
539 OPJ_UINT32 i;
540 opj_jp2_box_t box;
541
542 box.init_pos = cio_tell(cio);
543 cio_skip(cio, 4);
544 cio_write(cio, JP2_URL, 4); /* DBTL */
545 cio_write(cio, 0, 1); /* VERS */
546 cio_write(cio, 0, 3); /* FLAG */
547
548 if (Idx_file) {
549 for (i = 0; i < strlen(Idx_file); i++) {
550 cio_write(cio, Idx_file[i], 1);
551 }
552 }
553
554 box.length = cio_tell(cio) - box.init_pos;
555 cio_seek(cio, box.init_pos);
556 cio_write(cio, box.length, 4); /* L */
557 cio_seek(cio, box.init_pos + box.length);
558 }
559 #endif
560
561 static OPJ_BOOL opj_jp2_read_ihdr(opj_jp2_t *jp2,
562 OPJ_BYTE *p_image_header_data,
563 OPJ_UINT32 p_image_header_size,
564 opj_event_mgr_t * p_manager)
565 {
566 /* preconditions */
567 assert(p_image_header_data != 00);
568 assert(jp2 != 00);
569 assert(p_manager != 00);
570
571 if (jp2->comps != NULL) {
572 opj_event_msg(p_manager, EVT_WARNING,
573 "Ignoring ihdr box. First ihdr box already read\n");
574 return OPJ_TRUE;
575 }
576
577 if (p_image_header_size != 14) {
578 opj_event_msg(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
579 return OPJ_FALSE;
580 }
581
582 opj_read_bytes(p_image_header_data, &(jp2->h), 4); /* HEIGHT */
583 p_image_header_data += 4;
584 opj_read_bytes(p_image_header_data, &(jp2->w), 4); /* WIDTH */
585 p_image_header_data += 4;
586 opj_read_bytes(p_image_header_data, &(jp2->numcomps), 2); /* NC */
587 p_image_header_data += 2;
588
589 if (jp2->h < 1 || jp2->w < 1 || jp2->numcomps < 1) {
590 opj_event_msg(p_manager, EVT_ERROR,
591 "Wrong values for: w(%d) h(%d) numcomps(%d) (ihdr)\n",
592 jp2->w, jp2->h, jp2->numcomps);
593 return OPJ_FALSE;
594 }
595 if ((jp2->numcomps - 1U) >=
596 16384U) { /* unsigned underflow is well defined: 1U <= jp2->numcomps <= 16384U */
597 opj_event_msg(p_manager, EVT_ERROR, "Invalid number of components (ihdr)\n");
598 return OPJ_FALSE;
599 }
600
601 /* allocate memory for components */
602 jp2->comps = (opj_jp2_comps_t*) opj_calloc(jp2->numcomps,
603 sizeof(opj_jp2_comps_t));
604 if (jp2->comps == 0) {
605 opj_event_msg(p_manager, EVT_ERROR,
606 "Not enough memory to handle image header (ihdr)\n");
607 return OPJ_FALSE;
608 }
609
610 opj_read_bytes(p_image_header_data, &(jp2->bpc), 1); /* BPC */
611 ++ p_image_header_data;
612
613 opj_read_bytes(p_image_header_data, &(jp2->C), 1); /* C */
614 ++ p_image_header_data;
615
616 /* Should be equal to 7 cf. chapter about image header box of the norm */
617 if (jp2->C != 7) {
618 opj_event_msg(p_manager, EVT_INFO,
619 "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n",
620 jp2->C);
621 }
622
623 opj_read_bytes(p_image_header_data, &(jp2->UnkC), 1); /* UnkC */
624 ++ p_image_header_data;
625 opj_read_bytes(p_image_header_data, &(jp2->IPR), 1); /* IPR */
626 ++ p_image_header_data;
627
628 jp2->j2k->m_cp.allow_different_bit_depth_sign = (jp2->bpc == 255);
629 jp2->j2k->ihdr_w = jp2->w;
630 jp2->j2k->ihdr_h = jp2->h;
631 jp2->has_ihdr = 1;
632
633 return OPJ_TRUE;
634 }
635
636 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
637 OPJ_UINT32 * p_nb_bytes_written
638 )
639 {
640 OPJ_BYTE * l_ihdr_data, * l_current_ihdr_ptr;
641
642 /* preconditions */
643 assert(jp2 != 00);
644 assert(p_nb_bytes_written != 00);
645
646 /* default image header is 22 bytes wide */
647 l_ihdr_data = (OPJ_BYTE *) opj_calloc(1, 22);
648 if (l_ihdr_data == 00) {
649 return 00;
650 }
651
652 l_current_ihdr_ptr = l_ihdr_data;
653
654 opj_write_bytes(l_current_ihdr_ptr, 22, 4); /* write box size */
655 l_current_ihdr_ptr += 4;
656
657 opj_write_bytes(l_current_ihdr_ptr, JP2_IHDR, 4); /* IHDR */
658 l_current_ihdr_ptr += 4;
659
660 opj_write_bytes(l_current_ihdr_ptr, jp2->h, 4); /* HEIGHT */
661 l_current_ihdr_ptr += 4;
662
663 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
664 l_current_ihdr_ptr += 4;
665
666 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
667 l_current_ihdr_ptr += 2;
668
669 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
670 ++l_current_ihdr_ptr;
671
672 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
673 ++l_current_ihdr_ptr;
674
675 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC,
676 1); /* UnkC, colorspace unknown */
677 ++l_current_ihdr_ptr;
678
679 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR,
680 1); /* IPR, no intellectual property */
681 ++l_current_ihdr_ptr;
682
683 *p_nb_bytes_written = 22;
684
685 return l_ihdr_data;
686 }
687
688 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
689 OPJ_UINT32 * p_nb_bytes_written
690 )
691 {
692 OPJ_UINT32 i;
693 /* room for 8 bytes for box and 1 byte for each component */
694 OPJ_UINT32 l_bpcc_size;
695 OPJ_BYTE * l_bpcc_data, * l_current_bpcc_ptr;
696
697 /* preconditions */
698 assert(jp2 != 00);
699 assert(p_nb_bytes_written != 00);
700 l_bpcc_size = 8 + jp2->numcomps;
701
702 l_bpcc_data = (OPJ_BYTE *) opj_calloc(1, l_bpcc_size);
703 if (l_bpcc_data == 00) {
704 return 00;
705 }
706
707 l_current_bpcc_ptr = l_bpcc_data;
708
709 opj_write_bytes(l_current_bpcc_ptr, l_bpcc_size,
710 4); /* write box size */
711 l_current_bpcc_ptr += 4;
712
713 opj_write_bytes(l_current_bpcc_ptr, JP2_BPCC, 4); /* BPCC */
714 l_current_bpcc_ptr += 4;
715
716 for (i = 0; i < jp2->numcomps; ++i) {
717 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc,
718 1); /* write each component information */
719 ++l_current_bpcc_ptr;
720 }
721
722 *p_nb_bytes_written = l_bpcc_size;
723
724 return l_bpcc_data;
725 }
726
727 static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
728 OPJ_BYTE * p_bpc_header_data,
729 OPJ_UINT32 p_bpc_header_size,
730 opj_event_mgr_t * p_manager
731 )
732 {
733 OPJ_UINT32 i;
734
735 /* preconditions */
736 assert(p_bpc_header_data != 00);
737 assert(jp2 != 00);
738 assert(p_manager != 00);
739
740
741 if (jp2->bpc != 255) {
742 opj_event_msg(p_manager, EVT_WARNING,
743 "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n",
744 jp2->bpc);
745 }
746
747 /* and length is relevant */
748 if (p_bpc_header_size != jp2->numcomps) {
749 opj_event_msg(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
750 return OPJ_FALSE;
751 }
752
753 /* read info for each component */
754 for (i = 0; i < jp2->numcomps; ++i) {
755 opj_read_bytes(p_bpc_header_data, &jp2->comps[i].bpcc,
756 1); /* read each BPCC component */
757 ++p_bpc_header_data;
758 }
759
760 return OPJ_TRUE;
761 }
762 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
763 OPJ_UINT32 * p_nb_bytes_written)
764 {
765 /* room for 8 bytes for box, 2 for n */
766 OPJ_UINT32 l_cdef_size = 10;
767 OPJ_BYTE * l_cdef_data, * l_current_cdef_ptr;
768 OPJ_UINT32 l_value;
769 OPJ_UINT16 i;
770
771 /* preconditions */
772 assert(jp2 != 00);
773 assert(p_nb_bytes_written != 00);
774 assert(jp2->color.jp2_cdef != 00);
775 assert(jp2->color.jp2_cdef->info != 00);
776 assert(jp2->color.jp2_cdef->n > 0U);
777
778 l_cdef_size += 6U * jp2->color.jp2_cdef->n;
779
780 l_cdef_data = (OPJ_BYTE *) opj_malloc(l_cdef_size);
781 if (l_cdef_data == 00) {
782 return 00;
783 }
784
785 l_current_cdef_ptr = l_cdef_data;
786
787 opj_write_bytes(l_current_cdef_ptr, l_cdef_size, 4); /* write box size */
788 l_current_cdef_ptr += 4;
789
790 opj_write_bytes(l_current_cdef_ptr, JP2_CDEF, 4); /* BPCC */
791 l_current_cdef_ptr += 4;
792
793 l_value = jp2->color.jp2_cdef->n;
794 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* N */
795 l_current_cdef_ptr += 2;
796
797 for (i = 0U; i < jp2->color.jp2_cdef->n; ++i) {
798 l_value = jp2->color.jp2_cdef->info[i].cn;
799 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Cni */
800 l_current_cdef_ptr += 2;
801 l_value = jp2->color.jp2_cdef->info[i].typ;
802 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Typi */
803 l_current_cdef_ptr += 2;
804 l_value = jp2->color.jp2_cdef->info[i].asoc;
805 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Asoci */
806 l_current_cdef_ptr += 2;
807 }
808 *p_nb_bytes_written = l_cdef_size;
809
810 return l_cdef_data;
811 }
812
813 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
814 OPJ_UINT32 * p_nb_bytes_written
815 )
816 {
817 /* room for 8 bytes for box 3 for common data and variable upon profile*/
818 OPJ_UINT32 l_colr_size = 11;
819 OPJ_BYTE * l_colr_data, * l_current_colr_ptr;
820
821 /* preconditions */
822 assert(jp2 != 00);
823 assert(p_nb_bytes_written != 00);
824 assert(jp2->meth == 1 || jp2->meth == 2);
825
826 switch (jp2->meth) {
827 case 1 :
828 l_colr_size += 4; /* EnumCS */
829 break;
830 case 2 :
831 assert(jp2->color.icc_profile_len); /* ICC profile */
832 l_colr_size += jp2->color.icc_profile_len;
833 break;
834 default :
835 return 00;
836 }
837
838 l_colr_data = (OPJ_BYTE *) opj_calloc(1, l_colr_size);
839 if (l_colr_data == 00) {
840 return 00;
841 }
842
843 l_current_colr_ptr = l_colr_data;
844
845 opj_write_bytes(l_current_colr_ptr, l_colr_size,
846 4); /* write box size */
847 l_current_colr_ptr += 4;
848
849 opj_write_bytes(l_current_colr_ptr, JP2_COLR, 4); /* BPCC */
850 l_current_colr_ptr += 4;
851
852 opj_write_bytes(l_current_colr_ptr, jp2->meth, 1); /* METH */
853 ++l_current_colr_ptr;
854
855 opj_write_bytes(l_current_colr_ptr, jp2->precedence, 1); /* PRECEDENCE */
856 ++l_current_colr_ptr;
857
858 opj_write_bytes(l_current_colr_ptr, jp2->approx, 1); /* APPROX */
859 ++l_current_colr_ptr;
860
861 if (jp2->meth ==
862 1) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */
863 opj_write_bytes(l_current_colr_ptr, jp2->enumcs, 4);
864 } /* EnumCS */
865 else {
866 if (jp2->meth == 2) { /* ICC profile */
867 OPJ_UINT32 i;
868 for (i = 0; i < jp2->color.icc_profile_len; ++i) {
869 opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1);
870 ++l_current_colr_ptr;
871 }
872 }
873 }
874
875 *p_nb_bytes_written = l_colr_size;
876
877 return l_colr_data;
878 }
879
880 static void opj_jp2_free_pclr(opj_jp2_color_t *color)
881 {
882 opj_free(color->jp2_pclr->channel_sign);
883 opj_free(color->jp2_pclr->channel_size);
884 opj_free(color->jp2_pclr->entries);
885
886 if (color->jp2_pclr->cmap) {
887 opj_free(color->jp2_pclr->cmap);
888 }
889
890 opj_free(color->jp2_pclr);
891 color->jp2_pclr = NULL;
892 }
893
894 static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
895 opj_event_mgr_t *p_manager)
896 {
897 OPJ_UINT16 i;
898
899 /* testcase 4149.pdf.SIGSEGV.cf7.3501 */
900 if (color->jp2_cdef) {
901 opj_jp2_cdef_info_t *info = color->jp2_cdef->info;
902 OPJ_UINT16 n = color->jp2_cdef->n;
903 OPJ_UINT32 nr_channels =
904 image->numcomps; /* FIXME image->numcomps == jp2->numcomps before color is applied ??? */
905
906 /* cdef applies to cmap channels if any */
907 if (color->jp2_pclr && color->jp2_pclr->cmap) {
908 nr_channels = (OPJ_UINT32)color->jp2_pclr->nr_channels;
909 }
910
911 for (i = 0; i < n; i++) {
912 if (info[i].cn >= nr_channels) {
913 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
914 info[i].cn, nr_channels);
915 return OPJ_FALSE;
916 }
917 if (info[i].asoc == 65535U) {
918 continue;
919 }
920
921 if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
922 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
923 info[i].asoc - 1, nr_channels);
924 return OPJ_FALSE;
925 }
926 }
927
928 /* issue 397 */
929 /* ISO 15444-1 states that if cdef is present, it shall contain a complete list of channel definitions. */
930 while (nr_channels > 0) {
931 for (i = 0; i < n; ++i) {
932 if ((OPJ_UINT32)info[i].cn == (nr_channels - 1U)) {
933 break;
934 }
935 }
936 if (i == n) {
937 opj_event_msg(p_manager, EVT_ERROR, "Incomplete channel definitions.\n");
938 return OPJ_FALSE;
939 }
940 --nr_channels;
941 }
942 }
943
944 /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and
945 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */
946 if (color->jp2_pclr && color->jp2_pclr->cmap) {
947 OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels;
948 opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap;
949 OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE;
950
951 /* verify that all original components match an existing one */
952 for (i = 0; i < nr_channels; i++) {
953 if (cmap[i].cmp >= image->numcomps) {
954 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
955 cmap[i].cmp, image->numcomps);
956 is_sane = OPJ_FALSE;
957 }
958 }
959
960 pcol_usage = (OPJ_BOOL *) opj_calloc(nr_channels, sizeof(OPJ_BOOL));
961 if (!pcol_usage) {
962 opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n");
963 return OPJ_FALSE;
964 }
965 /* verify that no component is targeted more than once */
966 for (i = 0; i < nr_channels; i++) {
967 OPJ_BYTE mtyp = cmap[i].mtyp;
968 OPJ_BYTE pcol = cmap[i].pcol;
969 /* See ISO 15444-1 Table I.14 – MTYPi field values */
970 if (mtyp != 0 && mtyp != 1) {
971 opj_event_msg(p_manager, EVT_ERROR,
972 "Invalid value for cmap[%d].mtyp = %d.\n", i,
973 mtyp);
974 is_sane = OPJ_FALSE;
975 } else if (pcol >= nr_channels) {
976 opj_event_msg(p_manager, EVT_ERROR,
977 "Invalid component/palette index for direct mapping %d.\n", pcol);
978 is_sane = OPJ_FALSE;
979 } else if (pcol_usage[pcol] && mtyp == 1) {
980 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
981 is_sane = OPJ_FALSE;
982 } else if (mtyp == 0 && pcol != 0) {
983 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
984 * the value of this field shall be 0. */
985 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i,
986 pcol);
987 is_sane = OPJ_FALSE;
988 } else if (mtyp == 1 && pcol != i) {
989 /* OpenJPEG implementation limitation. See assert(i == pcol); */
990 /* in opj_jp2_apply_pclr() */
991 opj_event_msg(p_manager, EVT_ERROR,
992 "Implementation limitation: for palette mapping, "
993 "pcol[%d] should be equal to %d, but is equal "
994 "to %d.\n", i, i, pcol);
995 is_sane = OPJ_FALSE;
996 } else {
997 pcol_usage[pcol] = OPJ_TRUE;
998 }
999 }
1000 /* verify that all components are targeted at least once */
1001 for (i = 0; i < nr_channels; i++) {
1002 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
1003 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n",
1004 i);
1005 is_sane = OPJ_FALSE;
1006 }
1007 }
1008 /* Issue 235/447 weird cmap */
1009 if (1 && is_sane && (image->numcomps == 1U)) {
1010 for (i = 0; i < nr_channels; i++) {
1011 if (!pcol_usage[i]) {
1012 is_sane = 0U;
1013 opj_event_msg(p_manager, EVT_WARNING,
1014 "Component mapping seems wrong. Trying to correct.\n");
1015 break;
1016 }
1017 }
1018 if (!is_sane) {
1019 is_sane = OPJ_TRUE;
1020 for (i = 0; i < nr_channels; i++) {
1021 cmap[i].mtyp = 1U;
1022 cmap[i].pcol = (OPJ_BYTE) i;
1023 }
1024 }
1025 }
1026 opj_free(pcol_usage);
1027 if (!is_sane) {
1028 return OPJ_FALSE;
1029 }
1030 }
1031
1032 return OPJ_TRUE;
1033 }
1034
1035 /* file9.jp2 */
1036 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
1037 opj_jp2_color_t *color,
1038 opj_event_mgr_t * p_manager)
1039 {
1040 opj_image_comp_t *old_comps, *new_comps;
1041 OPJ_BYTE *channel_size, *channel_sign;
1042 OPJ_UINT32 *entries;
1043 opj_jp2_cmap_comp_t *cmap;
1044 OPJ_INT32 *src, *dst;
1045 OPJ_UINT32 j, max;
1046 OPJ_UINT16 i, nr_channels, cmp, pcol;
1047 OPJ_INT32 k, top_k;
1048
1049 channel_size = color->jp2_pclr->channel_size;
1050 channel_sign = color->jp2_pclr->channel_sign;
1051 entries = color->jp2_pclr->entries;
1052 cmap = color->jp2_pclr->cmap;
1053 nr_channels = color->jp2_pclr->nr_channels;
1054
1055 for (i = 0; i < nr_channels; ++i) {
1056 /* Palette mapping: */
1057 cmp = cmap[i].cmp;
1058 if (image->comps[cmp].data == NULL) {
1059 opj_event_msg(p_manager, EVT_ERROR,
1060 "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i);
1061 return OPJ_FALSE;
1062 }
1063 }
1064
1065 old_comps = image->comps;
1066 new_comps = (opj_image_comp_t*)
1067 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
1068 if (!new_comps) {
1069 opj_event_msg(p_manager, EVT_ERROR,
1070 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1071 return OPJ_FALSE;
1072 }
1073 for (i = 0; i < nr_channels; ++i) {
1074 pcol = cmap[i].pcol;
1075 cmp = cmap[i].cmp;
1076
1077 /* Direct use */
1078 if (cmap[i].mtyp == 0) {
1079 assert(pcol == 0);
1080 new_comps[i] = old_comps[cmp];
1081 } else {
1082 assert(i == pcol);
1083 new_comps[pcol] = old_comps[cmp];
1084 }
1085
1086 /* Palette mapping: */
1087 new_comps[i].data = (OPJ_INT32*)
1088 opj_image_data_alloc(sizeof(OPJ_INT32) * old_comps[cmp].w * old_comps[cmp].h);
1089 if (!new_comps[i].data) {
1090 while (i > 0) {
1091 -- i;
1092 opj_image_data_free(new_comps[i].data);
1093 }
1094 opj_free(new_comps);
1095 opj_event_msg(p_manager, EVT_ERROR,
1096 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1097 return OPJ_FALSE;
1098 }
1099 new_comps[i].prec = channel_size[i];
1100 new_comps[i].sgnd = channel_sign[i];
1101 }
1102
1103 top_k = color->jp2_pclr->nr_entries - 1;
1104
1105 for (i = 0; i < nr_channels; ++i) {
1106 /* Palette mapping: */
1107 cmp = cmap[i].cmp;
1108 pcol = cmap[i].pcol;
1109 src = old_comps[cmp].data;
1110 assert(src); /* verified above */
1111 max = new_comps[i].w * new_comps[i].h;
1112
1113 /* Direct use: */
1114 if (cmap[i].mtyp == 0) {
1115 dst = new_comps[i].data;
1116 assert(dst);
1117 for (j = 0; j < max; ++j) {
1118 dst[j] = src[j];
1119 }
1120 } else {
1121 assert(i == pcol);
1122 dst = new_comps[pcol].data;
1123 assert(dst);
1124 for (j = 0; j < max; ++j) {
1125 /* The index */
1126 if ((k = src[j]) < 0) {
1127 k = 0;
1128 } else if (k > top_k) {
1129 k = top_k;
1130 }
1131
1132 /* The colour */
1133 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
1134 }
1135 }
1136 }
1137
1138 max = image->numcomps;
1139 for (j = 0; j < max; ++j) {
1140 if (old_comps[j].data) {
1141 opj_image_data_free(old_comps[j].data);
1142 }
1143 }
1144
1145 opj_free(old_comps);
1146 image->comps = new_comps;
1147 image->numcomps = nr_channels;
1148
1149 return OPJ_TRUE;
1150 }/* apply_pclr() */
1151
1152 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
1153 OPJ_BYTE * p_pclr_header_data,
1154 OPJ_UINT32 p_pclr_header_size,
1155 opj_event_mgr_t * p_manager
1156 )
1157 {
1158 opj_jp2_pclr_t *jp2_pclr;
1159 OPJ_BYTE *channel_size, *channel_sign;
1160 OPJ_UINT32 *entries;
1161 OPJ_UINT16 nr_entries, nr_channels;
1162 OPJ_UINT16 i, j;
1163 OPJ_UINT32 l_value;
1164 OPJ_BYTE *orig_header_data = p_pclr_header_data;
1165
1166 /* preconditions */
1167 assert(p_pclr_header_data != 00);
1168 assert(jp2 != 00);
1169 assert(p_manager != 00);
1170 (void)p_pclr_header_size;
1171
1172 if (jp2->color.jp2_pclr) {
1173 return OPJ_FALSE;
1174 }
1175
1176 if (p_pclr_header_size < 3) {
1177 return OPJ_FALSE;
1178 }
1179
1180 opj_read_bytes(p_pclr_header_data, &l_value, 2); /* NE */
1181 p_pclr_header_data += 2;
1182 nr_entries = (OPJ_UINT16) l_value;
1183 if ((nr_entries == 0U) || (nr_entries > 1024U)) {
1184 opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n",
1185 (int)nr_entries);
1186 return OPJ_FALSE;
1187 }
1188
1189 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */
1190 ++p_pclr_header_data;
1191 nr_channels = (OPJ_UINT16) l_value;
1192 if (nr_channels == 0U) {
1193 opj_event_msg(p_manager, EVT_ERROR,
1194 "Invalid PCLR box. Reports 0 palette columns\n");
1195 return OPJ_FALSE;
1196 }
1197
1198 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) {
1199 return OPJ_FALSE;
1200 }
1201
1202 entries = (OPJ_UINT32*) opj_malloc(sizeof(OPJ_UINT32) * nr_channels *
1203 nr_entries);
1204 if (!entries) {
1205 return OPJ_FALSE;
1206 }
1207 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
1208 if (!channel_size) {
1209 opj_free(entries);
1210 return OPJ_FALSE;
1211 }
1212 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
1213 if (!channel_sign) {
1214 opj_free(entries);
1215 opj_free(channel_size);
1216 return OPJ_FALSE;
1217 }
1218
1219 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
1220 if (!jp2_pclr) {
1221 opj_free(entries);
1222 opj_free(channel_size);
1223 opj_free(channel_sign);
1224 return OPJ_FALSE;
1225 }
1226
1227 jp2_pclr->channel_sign = channel_sign;
1228 jp2_pclr->channel_size = channel_size;
1229 jp2_pclr->entries = entries;
1230 jp2_pclr->nr_entries = nr_entries;
1231 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
1232 jp2_pclr->cmap = NULL;
1233
1234 jp2->color.jp2_pclr = jp2_pclr;
1235
1236 for (i = 0; i < nr_channels; ++i) {
1237 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* Bi */
1238 ++p_pclr_header_data;
1239
1240 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1241 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1242 }
1243
1244 for (j = 0; j < nr_entries; ++j) {
1245 for (i = 0; i < nr_channels; ++i) {
1246 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3);
1247
1248 if (bytes_to_read > sizeof(OPJ_UINT32)) {
1249 bytes_to_read = sizeof(OPJ_UINT32);
1250 }
1251 if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data -
1252 orig_header_data) + (ptrdiff_t)bytes_to_read) {
1253 return OPJ_FALSE;
1254 }
1255
1256 opj_read_bytes(p_pclr_header_data, &l_value, bytes_to_read); /* Cji */
1257 p_pclr_header_data += bytes_to_read;
1258 *entries = (OPJ_UINT32) l_value;
1259 entries++;
1260 }
1261 }
1262
1263 return OPJ_TRUE;
1264 }
1265
1266 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
1267 OPJ_BYTE * p_cmap_header_data,
1268 OPJ_UINT32 p_cmap_header_size,
1269 opj_event_mgr_t * p_manager
1270 )
1271 {
1272 opj_jp2_cmap_comp_t *cmap;
1273 OPJ_BYTE i, nr_channels;
1274 OPJ_UINT32 l_value;
1275
1276 /* preconditions */
1277 assert(jp2 != 00);
1278 assert(p_cmap_header_data != 00);
1279 assert(p_manager != 00);
1280 (void)p_cmap_header_size;
1281
1282 /* Need nr_channels: */
1283 if (jp2->color.jp2_pclr == NULL) {
1284 opj_event_msg(p_manager, EVT_ERROR,
1285 "Need to read a PCLR box before the CMAP box.\n");
1286 return OPJ_FALSE;
1287 }
1288
1289 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1290 * inside a JP2 Header box' :
1291 */
1292 if (jp2->color.jp2_pclr->cmap) {
1293 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1294 return OPJ_FALSE;
1295 }
1296
1297 nr_channels = jp2->color.jp2_pclr->nr_channels;
1298 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1299 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1300 return OPJ_FALSE;
1301 }
1302
1303 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(
1304 opj_jp2_cmap_comp_t));
1305 if (!cmap) {
1306 return OPJ_FALSE;
1307 }
1308
1309
1310 for (i = 0; i < nr_channels; ++i) {
1311 opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
1312 p_cmap_header_data += 2;
1313 cmap[i].cmp = (OPJ_UINT16) l_value;
1314
1315 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1316 ++p_cmap_header_data;
1317 cmap[i].mtyp = (OPJ_BYTE) l_value;
1318
1319 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1320 ++p_cmap_header_data;
1321 cmap[i].pcol = (OPJ_BYTE) l_value;
1322 }
1323
1324 jp2->color.jp2_pclr->cmap = cmap;
1325
1326 return OPJ_TRUE;
1327 }
1328
1329 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
1330 opj_event_mgr_t *manager)
1331 {
1332 opj_jp2_cdef_info_t *info;
1333 OPJ_UINT16 i, n, cn, asoc, acn;
1334
1335 info = color->jp2_cdef->info;
1336 n = color->jp2_cdef->n;
1337
1338 for (i = 0; i < n; ++i) {
1339 /* WATCH: acn = asoc - 1 ! */
1340 asoc = info[i].asoc;
1341 cn = info[i].cn;
1342
1343 if (cn >= image->numcomps) {
1344 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
1345 cn, image->numcomps);
1346 continue;
1347 }
1348 if (asoc == 0 || asoc == 65535) {
1349 image->comps[cn].alpha = info[i].typ;
1350 continue;
1351 }
1352
1353 acn = (OPJ_UINT16)(asoc - 1);
1354 if (acn >= image->numcomps) {
1355 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
1356 acn, image->numcomps);
1357 continue;
1358 }
1359
1360 /* Swap only if color channel */
1361 if ((cn != acn) && (info[i].typ == 0)) {
1362 opj_image_comp_t saved;
1363 OPJ_UINT16 j;
1364
1365 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1366 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1367 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1368
1369 /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
1370 for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
1371 if (info[j].cn == cn) {
1372 info[j].cn = acn;
1373 } else if (info[j].cn == acn) {
1374 info[j].cn = cn;
1375 }
1376 /* asoc is related to color index. Do not update. */
1377 }
1378 }
1379
1380 image->comps[cn].alpha = info[i].typ;
1381 }
1382
1383 if (color->jp2_cdef->info) {
1384 opj_free(color->jp2_cdef->info);
1385 }
1386
1387 opj_free(color->jp2_cdef);
1388 color->jp2_cdef = NULL;
1389
1390 }/* jp2_apply_cdef() */
1391
1392 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
1393 OPJ_BYTE * p_cdef_header_data,
1394 OPJ_UINT32 p_cdef_header_size,
1395 opj_event_mgr_t * p_manager
1396 )
1397 {
1398 opj_jp2_cdef_info_t *cdef_info;
1399 OPJ_UINT16 i;
1400 OPJ_UINT32 l_value;
1401
1402 /* preconditions */
1403 assert(jp2 != 00);
1404 assert(p_cdef_header_data != 00);
1405 assert(p_manager != 00);
1406 (void)p_cdef_header_size;
1407
1408 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1409 * inside a JP2 Header box.'*/
1410 if (jp2->color.jp2_cdef) {
1411 return OPJ_FALSE;
1412 }
1413
1414 if (p_cdef_header_size < 2) {
1415 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1416 return OPJ_FALSE;
1417 }
1418
1419 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
1420 p_cdef_header_data += 2;
1421
1422 if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
1423 opj_event_msg(p_manager, EVT_ERROR,
1424 "Number of channel description is equal to zero in CDEF box.\n");
1425 return OPJ_FALSE;
1426 }
1427
1428 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1429 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1430 return OPJ_FALSE;
1431 }
1432
1433 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
1434 opj_jp2_cdef_info_t));
1435 if (!cdef_info) {
1436 return OPJ_FALSE;
1437 }
1438
1439 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1440 if (!jp2->color.jp2_cdef) {
1441 opj_free(cdef_info);
1442 return OPJ_FALSE;
1443 }
1444 jp2->color.jp2_cdef->info = cdef_info;
1445 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1446
1447 for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1448 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1449 p_cdef_header_data += 2;
1450 cdef_info[i].cn = (OPJ_UINT16) l_value;
1451
1452 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1453 p_cdef_header_data += 2;
1454 cdef_info[i].typ = (OPJ_UINT16) l_value;
1455
1456 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1457 p_cdef_header_data += 2;
1458 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1459 }
1460
1461 return OPJ_TRUE;
1462 }
1463
1464 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
1465 OPJ_BYTE * p_colr_header_data,
1466 OPJ_UINT32 p_colr_header_size,
1467 opj_event_mgr_t * p_manager
1468 )
1469 {
1470 OPJ_UINT32 l_value;
1471
1472 /* preconditions */
1473 assert(jp2 != 00);
1474 assert(p_colr_header_data != 00);
1475 assert(p_manager != 00);
1476
1477 if (p_colr_header_size < 3) {
1478 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1479 return OPJ_FALSE;
1480 }
1481
1482 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1483 * Specification boxes after the first.'
1484 */
1485 if (jp2->color.jp2_has_colr) {
1486 opj_event_msg(p_manager, EVT_INFO,
1487 "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1488 p_colr_header_data += p_colr_header_size;
1489 return OPJ_TRUE;
1490 }
1491
1492 opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
1493 ++p_colr_header_data;
1494
1495 opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
1496 ++p_colr_header_data;
1497
1498 opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
1499 ++p_colr_header_data;
1500
1501 if (jp2->meth == 1) {
1502 if (p_colr_header_size < 7) {
1503 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
1504 p_colr_header_size);
1505 return OPJ_FALSE;
1506 }
1507 if ((p_colr_header_size > 7) &&
1508 (jp2->enumcs != 14)) { /* handled below for CIELab) */
1509 /* testcase Altona_Technical_v20_x4.pdf */
1510 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
1511 p_colr_header_size);
1512 }
1513
1514 opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
1515
1516 p_colr_header_data += 4;
1517
1518 if (jp2->enumcs == 14) { /* CIELab */
1519 OPJ_UINT32 *cielab;
1520 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1521
1522 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1523 if (cielab == NULL) {
1524 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
1525 return OPJ_FALSE;
1526 }
1527 cielab[0] = 14; /* enumcs */
1528
1529 /* default values */
1530 rl = ra = rb = ol = oa = ob = 0;
1531 il = 0x00443530; /* D50 */
1532 cielab[1] = 0x44454600;/* DEF */
1533
1534 if (p_colr_header_size == 35) {
1535 opj_read_bytes(p_colr_header_data, &rl, 4);
1536 p_colr_header_data += 4;
1537 opj_read_bytes(p_colr_header_data, &ol, 4);
1538 p_colr_header_data += 4;
1539 opj_read_bytes(p_colr_header_data, &ra, 4);
1540 p_colr_header_data += 4;
1541 opj_read_bytes(p_colr_header_data, &oa, 4);
1542 p_colr_header_data += 4;
1543 opj_read_bytes(p_colr_header_data, &rb, 4);
1544 p_colr_header_data += 4;
1545 opj_read_bytes(p_colr_header_data, &ob, 4);
1546 p_colr_header_data += 4;
1547 opj_read_bytes(p_colr_header_data, &il, 4);
1548 p_colr_header_data += 4;
1549
1550 cielab[1] = 0;
1551 } else if (p_colr_header_size != 7) {
1552 opj_event_msg(p_manager, EVT_WARNING,
1553 "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
1554 }
1555 cielab[2] = rl;
1556 cielab[4] = ra;
1557 cielab[6] = rb;
1558 cielab[3] = ol;
1559 cielab[5] = oa;
1560 cielab[7] = ob;
1561 cielab[8] = il;
1562
1563 jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
1564 jp2->color.icc_profile_len = 0;
1565 }
1566 jp2->color.jp2_has_colr = 1;
1567 } else if (jp2->meth == 2) {
1568 /* ICC profile */
1569 OPJ_INT32 it_icc_value = 0;
1570 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1571
1572 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1573 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
1574 if (!jp2->color.icc_profile_buf) {
1575 jp2->color.icc_profile_len = 0;
1576 return OPJ_FALSE;
1577 }
1578
1579 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
1580 opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
1581 ++p_colr_header_data;
1582 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1583 }
1584
1585 jp2->color.jp2_has_colr = 1;
1586 } else if (jp2->meth > 2) {
1587 /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
1588 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1589 opj_event_msg(p_manager, EVT_INFO,
1590 "COLR BOX meth value is not a regular value (%d), "
1591 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1592 }
1593
1594 return OPJ_TRUE;
1595 }
1596
1597 static OPJ_BOOL opj_jp2_apply_color_postprocessing(opj_jp2_t *jp2,
1598 opj_image_t* p_image,
1599 opj_event_mgr_t * p_manager)
1600 {
1601 if (jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
1602 /* Bypass all JP2 component transforms */
1603 return OPJ_TRUE;
1604 }
1605
1606 if (!jp2->ignore_pclr_cmap_cdef) {
1607 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1608 return OPJ_FALSE;
1609 }
1610
1611 if (jp2->color.jp2_pclr) {
1612 /* Part 1, I.5.3.4: Either both or none : */
1613 if (!jp2->color.jp2_pclr->cmap) {
1614 opj_jp2_free_pclr(&(jp2->color));
1615 } else {
1616 if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
1617 return OPJ_FALSE;
1618 }
1619 }
1620 }
1621
1622 /* Apply the color space if needed */
1623 if (jp2->color.jp2_cdef) {
1624 opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
1625 }
1626 }
1627
1628 return OPJ_TRUE;
1629 }
1630
1631 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1632 opj_stream_private_t *p_stream,
1633 opj_image_t* p_image,
1634 opj_event_mgr_t * p_manager)
1635 {
1636 if (!p_image) {
1637 return OPJ_FALSE;
1638 }
1639
1640 /* J2K decoding */
1641 if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
1642 opj_event_msg(p_manager, EVT_ERROR,
1643 "Failed to decode the codestream in the JP2 file\n");
1644 return OPJ_FALSE;
1645 }
1646
1647 return opj_jp2_apply_color_postprocessing(jp2, p_image, p_manager);
1648 }
1649
1650 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1651 opj_stream_private_t *stream,
1652 opj_event_mgr_t * p_manager
1653 )
1654 {
1655 opj_jp2_img_header_writer_handler_t l_writers [4];
1656 opj_jp2_img_header_writer_handler_t * l_current_writer;
1657
1658 OPJ_INT32 i, l_nb_pass;
1659 /* size of data for super box*/
1660 OPJ_UINT32 l_jp2h_size = 8;
1661 OPJ_BOOL l_result = OPJ_TRUE;
1662
1663 /* to store the data of the super box */
1664 OPJ_BYTE l_jp2h_data [8];
1665
1666 /* preconditions */
1667 assert(stream != 00);
1668 assert(jp2 != 00);
1669 assert(p_manager != 00);
1670
1671 memset(l_writers, 0, sizeof(l_writers));
1672
1673 if (jp2->bpc == 255) {
1674 l_nb_pass = 3;
1675 l_writers[0].handler = opj_jp2_write_ihdr;
1676 l_writers[1].handler = opj_jp2_write_bpcc;
1677 l_writers[2].handler = opj_jp2_write_colr;
1678 } else {
1679 l_nb_pass = 2;
1680 l_writers[0].handler = opj_jp2_write_ihdr;
1681 l_writers[1].handler = opj_jp2_write_colr;
1682 }
1683
1684 if (jp2->color.jp2_cdef != NULL) {
1685 l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
1686 l_nb_pass++;
1687 }
1688
1689 /* write box header */
1690 /* write JP2H type */
1691 opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
1692
1693 l_current_writer = l_writers;
1694 for (i = 0; i < l_nb_pass; ++i) {
1695 l_current_writer->m_data = l_current_writer->handler(jp2,
1696 &(l_current_writer->m_size));
1697 if (l_current_writer->m_data == 00) {
1698 opj_event_msg(p_manager, EVT_ERROR,
1699 "Not enough memory to hold JP2 Header data\n");
1700 l_result = OPJ_FALSE;
1701 break;
1702 }
1703
1704 l_jp2h_size += l_current_writer->m_size;
1705 ++l_current_writer;
1706 }
1707
1708 if (! l_result) {
1709 l_current_writer = l_writers;
1710 for (i = 0; i < l_nb_pass; ++i) {
1711 if (l_current_writer->m_data != 00) {
1712 opj_free(l_current_writer->m_data);
1713 }
1714 ++l_current_writer;
1715 }
1716
1717 return OPJ_FALSE;
1718 }
1719
1720 /* write super box size */
1721 opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
1722
1723 /* write super box data on stream */
1724 if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
1725 opj_event_msg(p_manager, EVT_ERROR,
1726 "Stream error while writing JP2 Header box\n");
1727 l_result = OPJ_FALSE;
1728 }
1729
1730 if (l_result) {
1731 l_current_writer = l_writers;
1732 for (i = 0; i < l_nb_pass; ++i) {
1733 if (opj_stream_write_data(stream, l_current_writer->m_data,
1734 l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
1735 opj_event_msg(p_manager, EVT_ERROR,
1736 "Stream error while writing JP2 Header box\n");
1737 l_result = OPJ_FALSE;
1738 break;
1739 }
1740 ++l_current_writer;
1741 }
1742 }
1743
1744 l_current_writer = l_writers;
1745
1746 /* cleanup */
1747 for (i = 0; i < l_nb_pass; ++i) {
1748 if (l_current_writer->m_data != 00) {
1749 opj_free(l_current_writer->m_data);
1750 }
1751 ++l_current_writer;
1752 }
1753
1754 return l_result;
1755 }
1756
1757 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1758 opj_stream_private_t *cio,
1759 opj_event_mgr_t * p_manager)
1760 {
1761 OPJ_UINT32 i;
1762 OPJ_UINT32 l_ftyp_size;
1763 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1764 OPJ_BOOL l_result;
1765
1766 /* preconditions */
1767 assert(cio != 00);
1768 assert(jp2 != 00);
1769 assert(p_manager != 00);
1770 l_ftyp_size = 16 + 4 * jp2->numcl;
1771
1772 l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
1773
1774 if (l_ftyp_data == 00) {
1775 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1776 return OPJ_FALSE;
1777 }
1778
1779 l_current_data_ptr = l_ftyp_data;
1780
1781 opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
1782 l_current_data_ptr += 4;
1783
1784 opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
1785 l_current_data_ptr += 4;
1786
1787 opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
1788 l_current_data_ptr += 4;
1789
1790 opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
1791 l_current_data_ptr += 4;
1792
1793 for (i = 0; i < jp2->numcl; i++) {
1794 opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
1795 }
1796
1797 l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
1798 p_manager) == l_ftyp_size);
1799 if (! l_result) {
1800 opj_event_msg(p_manager, EVT_ERROR,
1801 "Error while writing ftyp data to stream\n");
1802 }
1803
1804 opj_free(l_ftyp_data);
1805
1806 return l_result;
1807 }
1808
1809 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1810 opj_stream_private_t *cio,
1811 opj_event_mgr_t * p_manager)
1812 {
1813 OPJ_OFF_T j2k_codestream_exit;
1814 OPJ_BYTE l_data_header [8];
1815
1816 /* preconditions */
1817 assert(jp2 != 00);
1818 assert(cio != 00);
1819 assert(p_manager != 00);
1820 assert(opj_stream_has_seek(cio));
1821
1822 j2k_codestream_exit = opj_stream_tell(cio);
1823 opj_write_bytes(l_data_header,
1824 (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
1825 4); /* size of codestream */
1826 opj_write_bytes(l_data_header + 4, JP2_JP2C,
1827 4); /* JP2C */
1828
1829 if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
1830 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1831 return OPJ_FALSE;
1832 }
1833
1834 if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
1835 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1836 return OPJ_FALSE;
1837 }
1838
1839 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
1840 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1841 return OPJ_FALSE;
1842 }
1843
1844 return OPJ_TRUE;
1845 }
1846
1847 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
1848 opj_stream_private_t *cio,
1849 opj_event_mgr_t * p_manager)
1850 {
1851 /* 12 bytes will be read */
1852 OPJ_BYTE l_signature_data [12];
1853
1854 /* preconditions */
1855 assert(cio != 00);
1856 assert(jp2 != 00);
1857 assert(p_manager != 00);
1858
1859 OPJ_UNUSED(jp2);
1860
1861 /* write box length */
1862 opj_write_bytes(l_signature_data, 12, 4);
1863 /* writes box type */
1864 opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
1865 /* writes magic number*/
1866 opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
1867
1868 if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
1869 return OPJ_FALSE;
1870 }
1871
1872 return OPJ_TRUE;
1873 }
1874
1875 /* ----------------------------------------------------------------------- */
1876 /* JP2 decoder interface */
1877 /* ----------------------------------------------------------------------- */
1878
1879 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1880 {
1881 /* setup the J2K codec */
1882 opj_j2k_setup_decoder(jp2->j2k, parameters);
1883
1884 /* further JP2 initializations go here */
1885 jp2->color.jp2_has_colr = 0;
1886 jp2->ignore_pclr_cmap_cdef = parameters->flags &
1887 OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1888 }
1889
1890 void opj_jp2_decoder_set_strict_mode(opj_jp2_t *jp2, OPJ_BOOL strict)
1891 {
1892 opj_j2k_decoder_set_strict_mode(jp2->j2k, strict);
1893 }
1894
1895 OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
1896 {
1897 return opj_j2k_set_threads(jp2->j2k, num_threads);
1898 }
1899
1900 /* ----------------------------------------------------------------------- */
1901 /* JP2 encoder interface */
1902 /* ----------------------------------------------------------------------- */
1903
1904 OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
1905 opj_cparameters_t *parameters,
1906 opj_image_t *image,
1907 opj_event_mgr_t * p_manager)
1908 {
1909 OPJ_UINT32 i;
1910 OPJ_UINT32 depth_0;
1911 OPJ_UINT32 sign;
1912 OPJ_UINT32 alpha_count;
1913 OPJ_UINT32 color_channels = 0U;
1914 OPJ_UINT32 alpha_channel = 0U;
1915
1916
1917 if (!jp2 || !parameters || !image) {
1918 return OPJ_FALSE;
1919 }
1920
1921 /* setup the J2K codec */
1922 /* ------------------- */
1923
1924 /* Check if number of components respects standard */
1925 if (image->numcomps < 1 || image->numcomps > 16384) {
1926 opj_event_msg(p_manager, EVT_ERROR,
1927 "Invalid number of components specified while setting up JP2 encoder\n");
1928 return OPJ_FALSE;
1929 }
1930
1931 if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
1932 p_manager) == OPJ_FALSE) {
1933 return OPJ_FALSE;
1934 }
1935
1936 /* setup the JP2 codec */
1937 /* ------------------- */
1938
1939 /* Profile box */
1940
1941 jp2->brand = JP2_JP2; /* BR */
1942 jp2->minversion = 0; /* MinV */
1943 jp2->numcl = 1;
1944 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1945 if (!jp2->cl) {
1946 opj_event_msg(p_manager, EVT_ERROR,
1947 "Not enough memory when setup the JP2 encoder\n");
1948 return OPJ_FALSE;
1949 }
1950 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1951
1952 /* Image Header box */
1953
1954 jp2->numcomps = image->numcomps; /* NC */
1955 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
1956 opj_jp2_comps_t));
1957 if (!jp2->comps) {
1958 opj_event_msg(p_manager, EVT_ERROR,
1959 "Not enough memory when setup the JP2 encoder\n");
1960 /* Memory of jp2->cl will be freed by opj_jp2_destroy */
1961 return OPJ_FALSE;
1962 }
1963
1964 jp2->h = image->y1 - image->y0; /* HEIGHT */
1965 jp2->w = image->x1 - image->x0; /* WIDTH */
1966 /* BPC */
1967 depth_0 = image->comps[0].prec - 1;
1968 sign = image->comps[0].sgnd;
1969 jp2->bpc = depth_0 + (sign << 7);
1970 for (i = 1; i < image->numcomps; i++) {
1971 OPJ_UINT32 depth = image->comps[i].prec - 1;
1972 sign = image->comps[i].sgnd;
1973 if (depth_0 != depth) {
1974 jp2->bpc = 255;
1975 }
1976 }
1977 jp2->C = 7; /* C : Always 7 */
1978 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
1979 jp2->IPR = 0; /* IPR, no intellectual property */
1980
1981 /* BitsPerComponent box */
1982 for (i = 0; i < image->numcomps; i++) {
1983 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
1984 }
1985
1986 /* Colour Specification box */
1987 if (image->icc_profile_len) {
1988 jp2->meth = 2;
1989 jp2->enumcs = 0;
1990 } else {
1991 jp2->meth = 1;
1992 if (image->color_space == OPJ_CLRSPC_SRGB) {
1993 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
1994 } else if (image->color_space == OPJ_CLRSPC_GRAY) {
1995 jp2->enumcs = 17;
1996 } else if (image->color_space == OPJ_CLRSPC_SYCC) {
1997 jp2->enumcs = 18; /* YUV */
1998 } else if (image->color_space == OPJ_CLRSPC_EYCC) {
1999 jp2->enumcs = 24;
2000 } else if (image->color_space == OPJ_CLRSPC_CMYK) {
2001 jp2->enumcs = 12;
2002 }
2003 }
2004
2005 /* Channel Definition box */
2006 /* FIXME not provided by parameters */
2007 /* We try to do what we can... */
2008 alpha_count = 0U;
2009 for (i = 0; i < image->numcomps; i++) {
2010 if (image->comps[i].alpha != 0) {
2011 alpha_count++;
2012 alpha_channel = i;
2013 }
2014 }
2015 if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
2016 switch (jp2->enumcs) {
2017 case 16:
2018 case 18:
2019 color_channels = 3;
2020 break;
2021 case 17:
2022 color_channels = 1;
2023 break;
2024 default:
2025 alpha_count = 0U;
2026 break;
2027 }
2028 if (alpha_count == 0U) {
2029 opj_event_msg(p_manager, EVT_WARNING,
2030 "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
2031 } else if (image->numcomps < (color_channels + 1)) {
2032 opj_event_msg(p_manager, EVT_WARNING,
2033 "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
2034 alpha_count = 0U;
2035 } else if ((OPJ_UINT32)alpha_channel < color_channels) {
2036 opj_event_msg(p_manager, EVT_WARNING,
2037 "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
2038 alpha_count = 0U;
2039 }
2040 } else if (alpha_count > 1) {
2041 opj_event_msg(p_manager, EVT_WARNING,
2042 "Multiple alpha channels specified. No cdef box will be created.\n");
2043 }
2044 if (alpha_count == 1U) { /* if here, we know what we can do */
2045 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
2046 if (!jp2->color.jp2_cdef) {
2047 opj_event_msg(p_manager, EVT_ERROR,
2048 "Not enough memory to setup the JP2 encoder\n");
2049 return OPJ_FALSE;
2050 }
2051 /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
2052 /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
2053 jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
2054 image->numcomps * sizeof(opj_jp2_cdef_info_t));
2055 if (!jp2->color.jp2_cdef->info) {
2056 /* memory will be freed by opj_jp2_destroy */
2057 opj_event_msg(p_manager, EVT_ERROR,
2058 "Not enough memory to setup the JP2 encoder\n");
2059 return OPJ_FALSE;
2060 }
2061 jp2->color.jp2_cdef->n = (OPJ_UINT16)
2062 image->numcomps; /* cast is valid : image->numcomps [1,16384] */
2063 for (i = 0U; i < color_channels; i++) {
2064 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2065 i; /* cast is valid : image->numcomps [1,16384] */
2066 jp2->color.jp2_cdef->info[i].typ = 0U;
2067 jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
2068 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
2069 }
2070 for (; i < image->numcomps; i++) {
2071 if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
2072 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2073 i; /* cast is valid : image->numcomps [1,16384] */
2074 jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
2075 jp2->color.jp2_cdef->info[i].asoc =
2076 0U; /* Apply alpha channel to the whole image */
2077 } else {
2078 /* Unknown channel */
2079 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2080 i; /* cast is valid : image->numcomps [1,16384] */
2081 jp2->color.jp2_cdef->info[i].typ = 65535U;
2082 jp2->color.jp2_cdef->info[i].asoc = 65535U;
2083 }
2084 }
2085 }
2086
2087 jp2->precedence = 0; /* PRECEDENCE */
2088 jp2->approx = 0; /* APPROX */
2089
2090 jp2->jpip_on = parameters->jpip_on;
2091
2092 return OPJ_TRUE;
2093 }
2094
2095 OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
2096 opj_stream_private_t *stream,
2097 opj_event_mgr_t * p_manager)
2098 {
2099 return opj_j2k_encode(jp2->j2k, stream, p_manager);
2100 }
2101
2102 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
2103 opj_stream_private_t *cio,
2104 opj_event_mgr_t * p_manager
2105 )
2106 {
2107 /* preconditions */
2108 assert(jp2 != 00);
2109 assert(cio != 00);
2110 assert(p_manager != 00);
2111
2112 /* customization of the end encoding */
2113 if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
2114 return OPJ_FALSE;
2115 }
2116
2117 /* write header */
2118 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
2119 return OPJ_FALSE;
2120 }
2121
2122 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
2123 }
2124
2125 OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
2126 opj_stream_private_t *cio,
2127 opj_event_mgr_t * p_manager
2128 )
2129 {
2130 /* preconditions */
2131 assert(jp2 != 00);
2132 assert(cio != 00);
2133 assert(p_manager != 00);
2134
2135 /* customization of the end encoding */
2136 if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
2137 return OPJ_FALSE;
2138 }
2139
2140 if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
2141 return OPJ_FALSE;
2142 }
2143
2144 /* write header */
2145 return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
2146 }
2147
2148 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
2149 opj_event_mgr_t * p_manager)
2150 {
2151 /* preconditions */
2152 assert(jp2 != 00);
2153 assert(p_manager != 00);
2154
2155 #ifdef USE_JPIP
2156 if (jp2->jpip_on) {
2157 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2158 (opj_procedure)opj_jpip_write_iptr, p_manager)) {
2159 return OPJ_FALSE;
2160 }
2161 }
2162 #endif
2163 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2164 (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
2165 return OPJ_FALSE;
2166 }
2167 /* DEVELOPER CORNER, add your custom procedures */
2168 #ifdef USE_JPIP
2169 if (jp2->jpip_on) {
2170 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2171 (opj_procedure)opj_jpip_write_cidx, p_manager)) {
2172 return OPJ_FALSE;
2173 }
2174 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2175 (opj_procedure)opj_jpip_write_fidx, p_manager)) {
2176 return OPJ_FALSE;
2177 }
2178 }
2179 #endif
2180 return OPJ_TRUE;
2181 }
2182
2183 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
2184 opj_event_mgr_t * p_manager)
2185 {
2186 /* preconditions */
2187 assert(jp2 != 00);
2188 assert(p_manager != 00);
2189
2190 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2191 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2192 return OPJ_FALSE;
2193 }
2194 /* DEVELOPER CORNER, add your custom procedures */
2195
2196 return OPJ_TRUE;
2197 }
2198
2199 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
2200 opj_stream_private_t *cio,
2201 opj_event_mgr_t * p_manager
2202 )
2203 {
2204 OPJ_BOOL l_is_valid = OPJ_TRUE;
2205 OPJ_UINT32 i;
2206
2207 /* preconditions */
2208 assert(jp2 != 00);
2209 assert(cio != 00);
2210 assert(p_manager != 00);
2211
2212 OPJ_UNUSED(p_manager);
2213
2214 /* JPEG2000 codec validation */
2215
2216 /* STATE checking */
2217 /* make sure the state is at 0 */
2218 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
2219
2220 /* make sure not reading a jp2h ???? WEIRD */
2221 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
2222
2223 /* POINTER validation */
2224 /* make sure a j2k codec is present */
2225 l_is_valid &= (jp2->j2k != 00);
2226
2227 /* make sure a procedure list is present */
2228 l_is_valid &= (jp2->m_procedure_list != 00);
2229
2230 /* make sure a validation list is present */
2231 l_is_valid &= (jp2->m_validation_list != 00);
2232
2233 /* PARAMETER VALIDATION */
2234 /* number of components */
2235 l_is_valid &= (jp2->numcl > 0);
2236 /* width */
2237 l_is_valid &= (jp2->h > 0);
2238 /* height */
2239 l_is_valid &= (jp2->w > 0);
2240 /* precision */
2241 for (i = 0; i < jp2->numcomps; ++i) {
2242 l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
2243 38U); /* 0 is valid, ignore sign for check */
2244 }
2245
2246 /* METH */
2247 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
2248
2249 /* stream validation */
2250 /* back and forth is needed */
2251 l_is_valid &= opj_stream_has_seek(cio);
2252
2253 return l_is_valid;
2254 }
2255
2256 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
2257 opj_stream_private_t *stream,
2258 opj_event_mgr_t * p_manager
2259 )
2260 {
2261 opj_jp2_box_t box;
2262 OPJ_UINT32 l_nb_bytes_read;
2263 const opj_jp2_header_handler_t * l_current_handler;
2264 const opj_jp2_header_handler_t * l_current_handler_misplaced;
2265 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
2266 OPJ_UINT32 l_current_data_size;
2267 OPJ_BYTE * l_current_data = 00;
2268
2269 /* preconditions */
2270 assert(stream != 00);
2271 assert(jp2 != 00);
2272 assert(p_manager != 00);
2273
2274 l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
2275
2276 if (l_current_data == 00) {
2277 opj_event_msg(p_manager, EVT_ERROR,
2278 "Not enough memory to handle jpeg2000 file header\n");
2279 return OPJ_FALSE;
2280 }
2281
2282 while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
2283 /* is it the codestream box ? */
2284 if (box.type == JP2_JP2C) {
2285 if (jp2->jp2_state & JP2_STATE_HEADER) {
2286 jp2->jp2_state |= JP2_STATE_CODESTREAM;
2287 opj_free(l_current_data);
2288 return OPJ_TRUE;
2289 } else {
2290 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
2291 opj_free(l_current_data);
2292 return OPJ_FALSE;
2293 }
2294 } else if (box.length == 0) {
2295 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2296 opj_free(l_current_data);
2297 return OPJ_FALSE;
2298 }
2299 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
2300 else if (box.length < l_nb_bytes_read) {
2301 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
2302 box.type);
2303 opj_free(l_current_data);
2304 return OPJ_FALSE;
2305 }
2306
2307 l_current_handler = opj_jp2_find_handler(box.type);
2308 l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
2309 l_current_data_size = box.length - l_nb_bytes_read;
2310
2311 if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
2312 if (l_current_handler == 00) {
2313 opj_event_msg(p_manager, EVT_WARNING,
2314 "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
2315 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2316 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2317 if (jp2->jp2_state & JP2_STATE_HEADER) {
2318 /* read anyway, we already have jp2h */
2319 l_current_handler = l_current_handler_misplaced;
2320 } else {
2321 opj_event_msg(p_manager, EVT_WARNING,
2322 "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
2323 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2324 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2325 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2326 if (opj_stream_skip(stream, l_current_data_size,
2327 p_manager) != l_current_data_size) {
2328 opj_event_msg(p_manager, EVT_ERROR,
2329 "Problem with skipping JPEG2000 box, stream error\n");
2330 opj_free(l_current_data);
2331 return OPJ_FALSE;
2332 }
2333 continue;
2334 }
2335 }
2336 if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
2337 /* do not even try to malloc if we can't read */
2338 opj_event_msg(p_manager, EVT_ERROR,
2339 "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
2340 box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2341 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
2342 (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
2343 opj_free(l_current_data);
2344 return OPJ_FALSE;
2345 }
2346 if (l_current_data_size > l_last_data_size) {
2347 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
2348 l_current_data_size);
2349 if (!new_current_data) {
2350 opj_free(l_current_data);
2351 opj_event_msg(p_manager, EVT_ERROR,
2352 "Not enough memory to handle jpeg2000 box\n");
2353 return OPJ_FALSE;
2354 }
2355 l_current_data = new_current_data;
2356 l_last_data_size = l_current_data_size;
2357 }
2358
2359 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
2360 l_current_data_size, p_manager);
2361 if (l_nb_bytes_read != l_current_data_size) {
2362 opj_event_msg(p_manager, EVT_ERROR,
2363 "Problem with reading JPEG2000 box, stream error\n");
2364 opj_free(l_current_data);
2365 return OPJ_FALSE;
2366 }
2367
2368 if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
2369 p_manager)) {
2370 opj_free(l_current_data);
2371 return OPJ_FALSE;
2372 }
2373 } else {
2374 if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
2375 opj_event_msg(p_manager, EVT_ERROR,
2376 "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
2377 opj_free(l_current_data);
2378 return OPJ_FALSE;
2379 }
2380 if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
2381 opj_event_msg(p_manager, EVT_ERROR,
2382 "Malformed JP2 file format: second box must be file type box\n");
2383 opj_free(l_current_data);
2384 return OPJ_FALSE;
2385 }
2386 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2387 if (opj_stream_skip(stream, l_current_data_size,
2388 p_manager) != l_current_data_size) {
2389 if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
2390 /* If we already read the codestream, do not error out */
2391 /* Needed for data/input/nonregression/issue254.jp2 */
2392 opj_event_msg(p_manager, EVT_WARNING,
2393 "Problem with skipping JPEG2000 box, stream error\n");
2394 opj_free(l_current_data);
2395 return OPJ_TRUE;
2396 } else {
2397 opj_event_msg(p_manager, EVT_ERROR,
2398 "Problem with skipping JPEG2000 box, stream error\n");
2399 opj_free(l_current_data);
2400 return OPJ_FALSE;
2401 }
2402 }
2403 }
2404 }
2405
2406 opj_free(l_current_data);
2407
2408 return OPJ_TRUE;
2409 }
2410
2411 /**
2412 * Executes the given procedures on the given codec.
2413 *
2414 * @param p_procedure_list the list of procedures to execute
2415 * @param jp2 the jpeg2000 file codec to execute the procedures on.
2416 * @param stream the stream to execute the procedures on.
2417 * @param p_manager the user manager.
2418 *
2419 * @return true if all the procedures were successfully executed.
2420 */
2421 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
2422 opj_procedure_list_t * p_procedure_list,
2423 opj_stream_private_t *stream,
2424 opj_event_mgr_t * p_manager
2425 )
2426
2427 {
2428 OPJ_BOOL(** l_procedure)(opj_jp2_t * jp2, opj_stream_private_t *,
2429 opj_event_mgr_t *) = 00;
2430 OPJ_BOOL l_result = OPJ_TRUE;
2431 OPJ_UINT32 l_nb_proc, i;
2432
2433 /* preconditions */
2434 assert(p_procedure_list != 00);
2435 assert(jp2 != 00);
2436 assert(stream != 00);
2437 assert(p_manager != 00);
2438
2439 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
2440 l_procedure = (OPJ_BOOL(**)(opj_jp2_t * jp2, opj_stream_private_t *,
2441 opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
2442
2443 for (i = 0; i < l_nb_proc; ++i) {
2444 l_result = l_result && (*l_procedure)(jp2, stream, p_manager);
2445 ++l_procedure;
2446 }
2447
2448 /* and clear the procedure list at the end. */
2449 opj_procedure_list_clear(p_procedure_list);
2450 return l_result;
2451 }
2452
2453 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
2454 opj_stream_private_t *stream,
2455 opj_image_t * p_image,
2456 opj_event_mgr_t * p_manager
2457 )
2458 {
2459 /* preconditions */
2460 assert(jp2 != 00);
2461 assert(stream != 00);
2462 assert(p_manager != 00);
2463
2464 /* customization of the validation */
2465 if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) {
2466 return OPJ_FALSE;
2467 }
2468
2469 /* validation of the parameters codec */
2470 if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) {
2471 return OPJ_FALSE;
2472 }
2473
2474 /* customization of the encoding */
2475 if (! opj_jp2_setup_header_writing(jp2, p_manager)) {
2476 return OPJ_FALSE;
2477 }
2478
2479 /* write header */
2480 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) {
2481 return OPJ_FALSE;
2482 }
2483
2484 return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager);
2485 }
2486
2487 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id)
2488 {
2489 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(
2490 opj_jp2_header_handler_t);
2491
2492 for (i = 0; i < l_handler_size; ++i) {
2493 if (jp2_header[i].id == p_id) {
2494 return &jp2_header[i];
2495 }
2496 }
2497 return NULL;
2498 }
2499
2500 /**
2501 * Finds the image execution function related to the given box id.
2502 *
2503 * @param p_id the id of the handler to fetch.
2504 *
2505 * @return the given handler or 00 if it could not be found.
2506 */
2507 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
2508 OPJ_UINT32 p_id)
2509 {
2510 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(
2511 opj_jp2_header_handler_t);
2512 for (i = 0; i < l_handler_size; ++i) {
2513 if (jp2_img_header[i].id == p_id) {
2514 return &jp2_img_header[i];
2515 }
2516 }
2517
2518 return NULL;
2519 }
2520
2521 /**
2522 * Reads a jpeg2000 file signature box.
2523 *
2524 * @param p_header_data the data contained in the signature box.
2525 * @param jp2 the jpeg2000 file codec.
2526 * @param p_header_size the size of the data contained in the signature box.
2527 * @param p_manager the user event manager.
2528 *
2529 * @return true if the file signature box is valid.
2530 */
2531 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2532 OPJ_BYTE * p_header_data,
2533 OPJ_UINT32 p_header_size,
2534 opj_event_mgr_t * p_manager
2535 )
2536
2537 {
2538 OPJ_UINT32 l_magic_number;
2539
2540 /* preconditions */
2541 assert(p_header_data != 00);
2542 assert(jp2 != 00);
2543 assert(p_manager != 00);
2544
2545 if (jp2->jp2_state != JP2_STATE_NONE) {
2546 opj_event_msg(p_manager, EVT_ERROR,
2547 "The signature box must be the first box in the file.\n");
2548 return OPJ_FALSE;
2549 }
2550
2551 /* assure length of data is correct (4 -> magic number) */
2552 if (p_header_size != 4) {
2553 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2554 return OPJ_FALSE;
2555 }
2556
2557 /* rearrange data */
2558 opj_read_bytes(p_header_data, &l_magic_number, 4);
2559 if (l_magic_number != 0x0d0a870a) {
2560 opj_event_msg(p_manager, EVT_ERROR,
2561 "Error with JP Signature : bad magic number\n");
2562 return OPJ_FALSE;
2563 }
2564
2565 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2566
2567 return OPJ_TRUE;
2568 }
2569
2570 /**
2571 * Reads a a FTYP box - File type box
2572 *
2573 * @param p_header_data the data contained in the FTYP box.
2574 * @param jp2 the jpeg2000 file codec.
2575 * @param p_header_size the size of the data contained in the FTYP box.
2576 * @param p_manager the user event manager.
2577 *
2578 * @return true if the FTYP box is valid.
2579 */
2580 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
2581 OPJ_BYTE * p_header_data,
2582 OPJ_UINT32 p_header_size,
2583 opj_event_mgr_t * p_manager
2584 )
2585 {
2586 OPJ_UINT32 i, l_remaining_bytes;
2587
2588 /* preconditions */
2589 assert(p_header_data != 00);
2590 assert(jp2 != 00);
2591 assert(p_manager != 00);
2592
2593 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2594 opj_event_msg(p_manager, EVT_ERROR,
2595 "The ftyp box must be the second box in the file.\n");
2596 return OPJ_FALSE;
2597 }
2598
2599 /* assure length of data is correct */
2600 if (p_header_size < 8) {
2601 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2602 return OPJ_FALSE;
2603 }
2604
2605 opj_read_bytes(p_header_data, &jp2->brand, 4); /* BR */
2606 p_header_data += 4;
2607
2608 opj_read_bytes(p_header_data, &jp2->minversion, 4); /* MinV */
2609 p_header_data += 4;
2610
2611 l_remaining_bytes = p_header_size - 8;
2612
2613 /* the number of remaining bytes should be a multiple of 4 */
2614 if ((l_remaining_bytes & 0x3) != 0) {
2615 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2616 return OPJ_FALSE;
2617 }
2618
2619 /* div by 4 */
2620 jp2->numcl = l_remaining_bytes >> 2;
2621 if (jp2->numcl) {
2622 jp2->cl = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32));
2623 if (jp2->cl == 00) {
2624 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2625 return OPJ_FALSE;
2626 }
2627 }
2628
2629 for (i = 0; i < jp2->numcl; ++i) {
2630 opj_read_bytes(p_header_data, &jp2->cl[i], 4); /* CLi */
2631 p_header_data += 4;
2632 }
2633
2634 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2635
2636 return OPJ_TRUE;
2637 }
2638
2639 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
2640 opj_stream_private_t *stream,
2641 opj_event_mgr_t * p_manager)
2642 {
2643 /* preconditions */
2644 assert(jp2 != 00);
2645 assert(stream != 00);
2646 assert(p_manager != 00);
2647
2648 jp2->j2k_codestream_offset = opj_stream_tell(stream);
2649
2650 if (opj_stream_skip(stream, 8, p_manager) != 8) {
2651 return OPJ_FALSE;
2652 }
2653
2654 return OPJ_TRUE;
2655 }
2656
2657 static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2,
2658 opj_stream_private_t *stream,
2659 opj_event_mgr_t * p_manager)
2660 {
2661 /* preconditions */
2662 assert(jp2 != 00);
2663 assert(stream != 00);
2664 assert(p_manager != 00);
2665
2666 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2667
2668 if (opj_stream_skip(stream, 24, p_manager) != 24) {
2669 return OPJ_FALSE;
2670 }
2671
2672 return OPJ_TRUE;
2673 }
2674
2675 /**
2676 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2677 *
2678 * @param p_header_data the data contained in the file header box.
2679 * @param jp2 the jpeg2000 file codec.
2680 * @param p_header_size the size of the data contained in the file header box.
2681 * @param p_manager the user event manager.
2682 *
2683 * @return true if the JP2 Header box was successfully recognized.
2684 */
2685 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
2686 OPJ_BYTE *p_header_data,
2687 OPJ_UINT32 p_header_size,
2688 opj_event_mgr_t * p_manager
2689 )
2690 {
2691 OPJ_UINT32 l_box_size = 0, l_current_data_size = 0;
2692 opj_jp2_box_t box;
2693 const opj_jp2_header_handler_t * l_current_handler;
2694 OPJ_BOOL l_has_ihdr = 0;
2695
2696 /* preconditions */
2697 assert(p_header_data != 00);
2698 assert(jp2 != 00);
2699 assert(p_manager != 00);
2700
2701 /* make sure the box is well placed */
2702 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE) {
2703 opj_event_msg(p_manager, EVT_ERROR,
2704 "The box must be the first box in the file.\n");
2705 return OPJ_FALSE;
2706 }
2707
2708 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2709
2710 /* iterate while remaining data */
2711 while (p_header_size > 0) {
2712
2713 if (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size,
2714 p_manager)) {
2715 opj_event_msg(p_manager, EVT_ERROR,
2716 "Stream error while reading JP2 Header box\n");
2717 return OPJ_FALSE;
2718 }
2719
2720 if (box.length > p_header_size) {
2721 opj_event_msg(p_manager, EVT_ERROR,
2722 "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2723 return OPJ_FALSE;
2724 }
2725
2726 l_current_handler = opj_jp2_img_find_handler(box.type);
2727 l_current_data_size = box.length - l_box_size;
2728 p_header_data += l_box_size;
2729
2730 if (l_current_handler != 00) {
2731 if (! l_current_handler->handler(jp2, p_header_data, l_current_data_size,
2732 p_manager)) {
2733 return OPJ_FALSE;
2734 }
2735 } else {
2736 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2737 }
2738
2739 if (box.type == JP2_IHDR) {
2740 l_has_ihdr = 1;
2741 }
2742
2743 p_header_data += l_current_data_size;
2744 p_header_size -= box.length;
2745 }
2746
2747 if (l_has_ihdr == 0) {
2748 opj_event_msg(p_manager, EVT_ERROR,
2749 "Stream error while reading JP2 Header box: no 'ihdr' box.\n");
2750 return OPJ_FALSE;
2751 }
2752
2753 jp2->jp2_state |= JP2_STATE_HEADER;
2754 jp2->has_jp2h = 1;
2755
2756 return OPJ_TRUE;
2757 }
2758
2759 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
2760 OPJ_BYTE * p_data,
2761 OPJ_UINT32 * p_number_bytes_read,
2762 OPJ_UINT32 p_box_max_size,
2763 opj_event_mgr_t * p_manager
2764 )
2765 {
2766 OPJ_UINT32 l_value;
2767
2768 /* preconditions */
2769 assert(p_data != 00);
2770 assert(box != 00);
2771 assert(p_number_bytes_read != 00);
2772 assert(p_manager != 00);
2773
2774 if (p_box_max_size < 8) {
2775 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2776 return OPJ_FALSE;
2777 }
2778
2779 /* process read data */
2780 opj_read_bytes(p_data, &l_value, 4);
2781 p_data += 4;
2782 box->length = (OPJ_UINT32)(l_value);
2783
2784 opj_read_bytes(p_data, &l_value, 4);
2785 p_data += 4;
2786 box->type = (OPJ_UINT32)(l_value);
2787
2788 *p_number_bytes_read = 8;
2789
2790 /* do we have a "special very large box ?" */
2791 /* read then the XLBox */
2792 if (box->length == 1) {
2793 OPJ_UINT32 l_xl_part_size;
2794
2795 if (p_box_max_size < 16) {
2796 opj_event_msg(p_manager, EVT_ERROR,
2797 "Cannot handle XL box of less than 16 bytes\n");
2798 return OPJ_FALSE;
2799 }
2800
2801 opj_read_bytes(p_data, &l_xl_part_size, 4);
2802 p_data += 4;
2803 *p_number_bytes_read += 4;
2804
2805 if (l_xl_part_size != 0) {
2806 opj_event_msg(p_manager, EVT_ERROR,
2807 "Cannot handle box sizes higher than 2^32\n");
2808 return OPJ_FALSE;
2809 }
2810
2811 opj_read_bytes(p_data, &l_value, 4);
2812 *p_number_bytes_read += 4;
2813 box->length = (OPJ_UINT32)(l_value);
2814
2815 if (box->length == 0) {
2816 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2817 return OPJ_FALSE;
2818 }
2819 } else if (box->length == 0) {
2820 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2821 return OPJ_FALSE;
2822 }
2823 if (box->length < *p_number_bytes_read) {
2824 opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n");
2825 return OPJ_FALSE;
2826 }
2827 return OPJ_TRUE;
2828 }
2829
2830 OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream,
2831 opj_jp2_t *jp2,
2832 opj_image_t ** p_image,
2833 opj_event_mgr_t * p_manager
2834 )
2835 {
2836 int ret;
2837
2838 /* preconditions */
2839 assert(jp2 != 00);
2840 assert(p_stream != 00);
2841 assert(p_manager != 00);
2842
2843 /* customization of the validation */
2844 if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) {
2845 return OPJ_FALSE;
2846 }
2847
2848 /* customization of the encoding */
2849 if (! opj_jp2_setup_header_reading(jp2, p_manager)) {
2850 return OPJ_FALSE;
2851 }
2852
2853 /* validation of the parameters codec */
2854 if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) {
2855 return OPJ_FALSE;
2856 }
2857
2858 /* read header */
2859 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) {
2860 return OPJ_FALSE;
2861 }
2862 if (jp2->has_jp2h == 0) {
2863 opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n");
2864 return OPJ_FALSE;
2865 }
2866 if (jp2->has_ihdr == 0) {
2867 opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n");
2868 return OPJ_FALSE;
2869 }
2870
2871 ret = opj_j2k_read_header(p_stream,
2872 jp2->j2k,
2873 p_image,
2874 p_manager);
2875
2876 if (ret && p_image && *p_image) {
2877 /* Set Image Color Space */
2878 if (jp2->enumcs == 16) {
2879 (*p_image)->color_space = OPJ_CLRSPC_SRGB;
2880 } else if (jp2->enumcs == 17) {
2881 (*p_image)->color_space = OPJ_CLRSPC_GRAY;
2882 } else if (jp2->enumcs == 18) {
2883 (*p_image)->color_space = OPJ_CLRSPC_SYCC;
2884 } else if (jp2->enumcs == 24) {
2885 (*p_image)->color_space = OPJ_CLRSPC_EYCC;
2886 } else if (jp2->enumcs == 12) {
2887 (*p_image)->color_space = OPJ_CLRSPC_CMYK;
2888 } else {
2889 (*p_image)->color_space = OPJ_CLRSPC_UNKNOWN;
2890 }
2891
2892 if (jp2->color.icc_profile_buf) {
2893 (*p_image)->icc_profile_buf = jp2->color.icc_profile_buf;
2894 (*p_image)->icc_profile_len = jp2->color.icc_profile_len;
2895 jp2->color.icc_profile_buf = NULL;
2896 }
2897 }
2898 return ret;
2899 }
2900
2901 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
2902 opj_event_mgr_t * p_manager)
2903 {
2904 /* preconditions */
2905 assert(jp2 != 00);
2906 assert(p_manager != 00);
2907
2908 if (! opj_procedure_list_add_procedure(jp2->m_validation_list,
2909 (opj_procedure)opj_jp2_default_validation, p_manager)) {
2910 return OPJ_FALSE;
2911 }
2912 /* DEVELOPER CORNER, add your custom validation procedure */
2913
2914 return OPJ_TRUE;
2915 }
2916
2917 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
2918 opj_event_mgr_t * p_manager)
2919 {
2920 /* preconditions */
2921 assert(jp2 != 00);
2922 assert(p_manager != 00);
2923
2924 OPJ_UNUSED(jp2);
2925 OPJ_UNUSED(p_manager);
2926
2927 /* DEVELOPER CORNER, add your custom validation procedure */
2928
2929 return OPJ_TRUE;
2930 }
2931
2932 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
2933 opj_event_mgr_t * p_manager)
2934 {
2935 /* preconditions */
2936 assert(jp2 != 00);
2937 assert(p_manager != 00);
2938
2939 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2940 (opj_procedure)opj_jp2_write_jp, p_manager)) {
2941 return OPJ_FALSE;
2942 }
2943 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2944 (opj_procedure)opj_jp2_write_ftyp, p_manager)) {
2945 return OPJ_FALSE;
2946 }
2947 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2948 (opj_procedure)opj_jp2_write_jp2h, p_manager)) {
2949 return OPJ_FALSE;
2950 }
2951 if (jp2->jpip_on) {
2952 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2953 (opj_procedure)opj_jpip_skip_iptr, p_manager)) {
2954 return OPJ_FALSE;
2955 }
2956 }
2957 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2958 (opj_procedure)opj_jp2_skip_jp2c, p_manager)) {
2959 return OPJ_FALSE;
2960 }
2961
2962 /* DEVELOPER CORNER, insert your custom procedures */
2963
2964 return OPJ_TRUE;
2965 }
2966
2967 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
2968 opj_event_mgr_t * p_manager)
2969 {
2970 /* preconditions */
2971 assert(jp2 != 00);
2972 assert(p_manager != 00);
2973
2974 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2975 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2976 return OPJ_FALSE;
2977 }
2978
2979 /* DEVELOPER CORNER, add your custom procedures */
2980
2981 return OPJ_TRUE;
2982 }
2983
2984 OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_t * p_jp2,
2985 OPJ_UINT32 * p_tile_index,
2986 OPJ_UINT32 * p_data_size,
2987 OPJ_INT32 * p_tile_x0,
2988 OPJ_INT32 * p_tile_y0,
2989 OPJ_INT32 * p_tile_x1,
2990 OPJ_INT32 * p_tile_y1,
2991 OPJ_UINT32 * p_nb_comps,
2992 OPJ_BOOL * p_go_on,
2993 opj_stream_private_t *p_stream,
2994 opj_event_mgr_t * p_manager
2995 )
2996 {
2997 return opj_j2k_read_tile_header(p_jp2->j2k,
2998 p_tile_index,
2999 p_data_size,
3000 p_tile_x0, p_tile_y0,
3001 p_tile_x1, p_tile_y1,
3002 p_nb_comps,
3003 p_go_on,
3004 p_stream,
3005 p_manager);
3006 }
3007
3008 OPJ_BOOL opj_jp2_write_tile(opj_jp2_t *p_jp2,
3009 OPJ_UINT32 p_tile_index,
3010 OPJ_BYTE * p_data,
3011 OPJ_UINT32 p_data_size,
3012 opj_stream_private_t *p_stream,
3013 opj_event_mgr_t * p_manager
3014 )
3015
3016 {
3017 return opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3018 p_stream, p_manager);
3019 }
3020
3021 OPJ_BOOL opj_jp2_decode_tile(opj_jp2_t * p_jp2,
3022 OPJ_UINT32 p_tile_index,
3023 OPJ_BYTE * p_data,
3024 OPJ_UINT32 p_data_size,
3025 opj_stream_private_t *p_stream,
3026 opj_event_mgr_t * p_manager
3027 )
3028 {
3029 return opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3030 p_stream, p_manager);
3031 }
3032
3033 void opj_jp2_destroy(opj_jp2_t *jp2)
3034 {
3035 if (jp2) {
3036 /* destroy the J2K codec */
3037 opj_j2k_destroy(jp2->j2k);
3038 jp2->j2k = 00;
3039
3040 if (jp2->comps) {
3041 opj_free(jp2->comps);
3042 jp2->comps = 00;
3043 }
3044
3045 if (jp2->cl) {
3046 opj_free(jp2->cl);
3047 jp2->cl = 00;
3048 }
3049
3050 if (jp2->color.icc_profile_buf) {
3051 opj_free(jp2->color.icc_profile_buf);
3052 jp2->color.icc_profile_buf = 00;
3053 }
3054
3055 if (jp2->color.jp2_cdef) {
3056 if (jp2->color.jp2_cdef->info) {
3057 opj_free(jp2->color.jp2_cdef->info);
3058 jp2->color.jp2_cdef->info = NULL;
3059 }
3060
3061 opj_free(jp2->color.jp2_cdef);
3062 jp2->color.jp2_cdef = 00;
3063 }
3064
3065 if (jp2->color.jp2_pclr) {
3066 if (jp2->color.jp2_pclr->cmap) {
3067 opj_free(jp2->color.jp2_pclr->cmap);
3068 jp2->color.jp2_pclr->cmap = NULL;
3069 }
3070 if (jp2->color.jp2_pclr->channel_sign) {
3071 opj_free(jp2->color.jp2_pclr->channel_sign);
3072 jp2->color.jp2_pclr->channel_sign = NULL;
3073 }
3074 if (jp2->color.jp2_pclr->channel_size) {
3075 opj_free(jp2->color.jp2_pclr->channel_size);
3076 jp2->color.jp2_pclr->channel_size = NULL;
3077 }
3078 if (jp2->color.jp2_pclr->entries) {
3079 opj_free(jp2->color.jp2_pclr->entries);
3080 jp2->color.jp2_pclr->entries = NULL;
3081 }
3082
3083 opj_free(jp2->color.jp2_pclr);
3084 jp2->color.jp2_pclr = 00;
3085 }
3086
3087 if (jp2->m_validation_list) {
3088 opj_procedure_list_destroy(jp2->m_validation_list);
3089 jp2->m_validation_list = 00;
3090 }
3091
3092 if (jp2->m_procedure_list) {
3093 opj_procedure_list_destroy(jp2->m_procedure_list);
3094 jp2->m_procedure_list = 00;
3095 }
3096
3097 opj_free(jp2);
3098 }
3099 }
3100
3101 OPJ_BOOL opj_jp2_set_decoded_components(opj_jp2_t *p_jp2,
3102 OPJ_UINT32 numcomps,
3103 const OPJ_UINT32* comps_indices,
3104 opj_event_mgr_t * p_manager)
3105 {
3106 return opj_j2k_set_decoded_components(p_jp2->j2k,
3107 numcomps, comps_indices,
3108 p_manager);
3109 }
3110
3111 OPJ_BOOL opj_jp2_set_decode_area(opj_jp2_t *p_jp2,
3112 opj_image_t* p_image,
3113 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
3114 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
3115 opj_event_mgr_t * p_manager
3116 )
3117 {
3118 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y,
3119 p_end_x, p_end_y, p_manager);
3120 }
3121
3122 OPJ_BOOL opj_jp2_get_tile(opj_jp2_t *p_jp2,
3123 opj_stream_private_t *p_stream,
3124 opj_image_t* p_image,
3125 opj_event_mgr_t * p_manager,
3126 OPJ_UINT32 tile_index
3127 )
3128 {
3129 if (!p_image) {
3130 return OPJ_FALSE;
3131 }
3132
3133 opj_event_msg(p_manager, EVT_WARNING,
3134 "JP2 box which are after the codestream will not be read by this function.\n");
3135
3136 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index)) {
3137 opj_event_msg(p_manager, EVT_ERROR,
3138 "Failed to decode the codestream in the JP2 file\n");
3139 return OPJ_FALSE;
3140 }
3141
3142 return opj_jp2_apply_color_postprocessing(p_jp2, p_image, p_manager);
3143 }
3144
3145 /* ----------------------------------------------------------------------- */
3146 /* JP2 encoder interface */
3147 /* ----------------------------------------------------------------------- */
3148
3149 opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
3150 {
3151 opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1, sizeof(opj_jp2_t));
3152 if (jp2) {
3153
3154 /* create the J2K codec */
3155 if (! p_is_decoder) {
3156 jp2->j2k = opj_j2k_create_compress();
3157 } else {
3158 jp2->j2k = opj_j2k_create_decompress();
3159 }
3160
3161 if (jp2->j2k == 00) {
3162 opj_jp2_destroy(jp2);
3163 return 00;
3164 }
3165
3166 /* Color structure */
3167 jp2->color.icc_profile_buf = NULL;
3168 jp2->color.icc_profile_len = 0;
3169 jp2->color.jp2_cdef = NULL;
3170 jp2->color.jp2_pclr = NULL;
3171 jp2->color.jp2_has_colr = 0;
3172
3173 /* validation list creation */
3174 jp2->m_validation_list = opj_procedure_list_create();
3175 if (! jp2->m_validation_list) {
3176 opj_jp2_destroy(jp2);
3177 return 00;
3178 }
3179
3180 /* execution list creation */
3181 jp2->m_procedure_list = opj_procedure_list_create();
3182 if (! jp2->m_procedure_list) {
3183 opj_jp2_destroy(jp2);
3184 return 00;
3185 }
3186 }
3187
3188 return jp2;
3189 }
3190
3191 void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
3192 {
3193 /* preconditions */
3194 assert(p_jp2 != 00);
3195
3196 j2k_dump(p_jp2->j2k,
3197 flag,
3198 out_stream);
3199 }
3200
3201 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
3202 {
3203 return j2k_get_cstr_index(p_jp2->j2k);
3204 }
3205
3206 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
3207 {
3208 return j2k_get_cstr_info(p_jp2->j2k);
3209 }
3210
3211 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
3212 OPJ_UINT32 res_factor,
3213 opj_event_mgr_t * p_manager)
3214 {
3215 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
3216 }
3217
3218 /* ----------------------------------------------------------------------- */
3219
3220 OPJ_BOOL opj_jp2_encoder_set_extra_options(
3221 opj_jp2_t *p_jp2,
3222 const char* const* p_options,
3223 opj_event_mgr_t * p_manager)
3224 {
3225 return opj_j2k_encoder_set_extra_options(p_jp2->j2k, p_options, p_manager);
3226 }
3227
3228 /* ----------------------------------------------------------------------- */
3229
3230 /* JPIP specific */
3231
3232 #ifdef USE_JPIP
3233 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
3234 opj_stream_private_t *cio,
3235 opj_event_mgr_t * p_manager)
3236 {
3237 OPJ_OFF_T j2k_codestream_exit;
3238 OPJ_BYTE l_data_header [24];
3239
3240 /* preconditions */
3241 assert(jp2 != 00);
3242 assert(cio != 00);
3243 assert(p_manager != 00);
3244 assert(opj_stream_has_seek(cio));
3245
3246 j2k_codestream_exit = opj_stream_tell(cio);
3247 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3248 opj_write_bytes(l_data_header + 4, JPIP_IPTR,
3249 4); /* IPTR */
3250 #if 0
3251 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3252 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3253 #else
3254 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3255 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3256 #endif
3257
3258 if (! opj_stream_seek(cio, jp2->jpip_iptr_offset, p_manager)) {
3259 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3260 return OPJ_FALSE;
3261 }
3262
3263 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3264 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3265 return OPJ_FALSE;
3266 }
3267
3268 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3269 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3270 return OPJ_FALSE;
3271 }
3272
3273 return OPJ_TRUE;
3274 }
3275
3276 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
3277 opj_stream_private_t *cio,
3278 opj_event_mgr_t * p_manager)
3279 {
3280 OPJ_OFF_T j2k_codestream_exit;
3281 OPJ_BYTE l_data_header [24];
3282
3283 OPJ_UNUSED(jp2);
3284
3285 /* preconditions */
3286 assert(jp2 != 00);
3287 assert(cio != 00);
3288 assert(p_manager != 00);
3289 assert(opj_stream_has_seek(cio));
3290
3291 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3292 opj_write_bytes(l_data_header + 4, JPIP_FIDX,
3293 4); /* IPTR */
3294 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3295 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3296
3297 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3298 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3299 return OPJ_FALSE;
3300 }
3301
3302 j2k_codestream_exit = opj_stream_tell(cio);
3303 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3304 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3305 return OPJ_FALSE;
3306 }
3307
3308 return OPJ_TRUE;
3309 }
3310
3311 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
3312 opj_stream_private_t *cio,
3313 opj_event_mgr_t * p_manager)
3314 {
3315 OPJ_OFF_T j2k_codestream_exit;
3316 OPJ_BYTE l_data_header [24];
3317
3318 OPJ_UNUSED(jp2);
3319
3320 /* preconditions */
3321 assert(jp2 != 00);
3322 assert(cio != 00);
3323 assert(p_manager != 00);
3324 assert(opj_stream_has_seek(cio));
3325
3326 j2k_codestream_exit = opj_stream_tell(cio);
3327 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3328 opj_write_bytes(l_data_header + 4, JPIP_CIDX,
3329 4); /* IPTR */
3330 #if 0
3331 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3332 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3333 #else
3334 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3335 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3336 #endif
3337
3338 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3339 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3340 return OPJ_FALSE;
3341 }
3342
3343 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3344 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3345 return OPJ_FALSE;
3346 }
3347
3348 j2k_codestream_exit = opj_stream_tell(cio);
3349 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3350 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3351 return OPJ_FALSE;
3352 }
3353
3354 return OPJ_TRUE;
3355 }
3356
3357 #if 0
3358 static void write_prxy(int offset_jp2c, int length_jp2c, int offset_idx,
3359 int length_idx, opj_stream_private_t *cio,
3360 opj_event_mgr_t * p_manager)
3361 {
3362 OPJ_BYTE l_data_header [8];
3363 OPJ_OFF_T len, lenp;
3364
3365 lenp = opj_stream_tell(cio);
3366 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
3367 opj_write_bytes(l_data_header, JPIP_PRXY, 4); /* IPTR */
3368 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3369
3370 opj_write_bytes(l_data_header, offset_jp2c, 8); /* OOFF */
3371 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3372 opj_write_bytes(l_data_header, length_jp2c, 4); /* OBH part 1 */
3373 opj_write_bytes(l_data_header + 4, JP2_JP2C, 4); /* OBH part 2 */
3374 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3375
3376 opj_write_bytes(l_data_header, 1, 1); /* NI */
3377 opj_stream_write_data(cio, l_data_header, 1, p_manager);
3378
3379 opj_write_bytes(l_data_header, offset_idx, 8); /* IOFF */
3380 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3381 opj_write_bytes(l_data_header, length_idx, 4); /* IBH part 1 */
3382 opj_write_bytes(l_data_header + 4, JPIP_CIDX, 4); /* IBH part 2 */
3383 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3384
3385 len = opj_stream_tell(cio) - lenp;
3386 opj_stream_skip(cio, lenp, p_manager);
3387 opj_write_bytes(l_data_header, len, 4); /* L */
3388 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3389 opj_stream_seek(cio, lenp + len, p_manager);
3390 }
3391 #endif
3392
3393
3394 #if 0
3395 static int write_fidx(int offset_jp2c, int length_jp2c, int offset_idx,
3396 int length_idx, opj_stream_private_t *cio,
3397 opj_event_mgr_t * p_manager)
3398 {
3399 OPJ_BYTE l_data_header [4];
3400 OPJ_OFF_T len, lenp;
3401
3402 lenp = opj_stream_tell(cio);
3403 opj_stream_skip(cio, 4, p_manager);
3404 opj_write_bytes(l_data_header, JPIP_FIDX, 4); /* FIDX */
3405 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3406
3407 write_prxy(offset_jp2c, length_jp2c, offset_idx, length_idx, cio, p_manager);
3408
3409 len = opj_stream_tell(cio) - lenp;
3410 opj_stream_skip(cio, lenp, p_manager);
3411 opj_write_bytes(l_data_header, len, 4); /* L */
3412 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3413 opj_stream_seek(cio, lenp + len, p_manager);
3414
3415 return len;
3416 }
3417 #endif
3418 #endif /* USE_JPIP */