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 * Developpers 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 * Developpers 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. Developpers 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. Developpers 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. Developpers 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 * Developpers 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 /* ----------------------------------------------------------------------- */
opj_jp2_read_boxhdr(opj_jp2_box_t * box,OPJ_UINT32 * p_number_bytes_read,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)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
opj_jp2_read_ihdr(opj_jp2_t * jp2,OPJ_BYTE * p_image_header_data,OPJ_UINT32 p_image_header_size,opj_event_mgr_t * p_manager)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->numcomps - 1U) >=
590 16384U) { /* unsigned underflow is well defined: 1U <= jp2->numcomps <= 16384U */
591 opj_event_msg(p_manager, EVT_ERROR, "Invalid number of components (ihdr)\n");
592 return OPJ_FALSE;
593 }
594
595 /* allocate memory for components */
596 opj_free(jp2->comps);
597 jp2->comps = (opj_jp2_comps_t*) opj_calloc(jp2->numcomps,
598 sizeof(opj_jp2_comps_t));
599 if (jp2->comps == 0) {
600 opj_event_msg(p_manager, EVT_ERROR,
601 "Not enough memory to handle image header (ihdr)\n");
602 return OPJ_FALSE;
603 }
604
605 opj_read_bytes(p_image_header_data, &(jp2->bpc), 1); /* BPC */
606 ++ p_image_header_data;
607
608 opj_read_bytes(p_image_header_data, &(jp2->C), 1); /* C */
609 ++ p_image_header_data;
610
611 /* Should be equal to 7 cf. chapter about image header box of the norm */
612 if (jp2->C != 7) {
613 opj_event_msg(p_manager, EVT_INFO,
614 "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n",
615 jp2->C);
616 }
617
618 opj_read_bytes(p_image_header_data, &(jp2->UnkC), 1); /* UnkC */
619 ++ p_image_header_data;
620 opj_read_bytes(p_image_header_data, &(jp2->IPR), 1); /* IPR */
621 ++ p_image_header_data;
622
623 jp2->j2k->m_cp.allow_different_bit_depth_sign = (jp2->bpc == 255);
624 jp2->j2k->ihdr_w = jp2->w;
625 jp2->j2k->ihdr_h = jp2->h;
626 jp2->has_ihdr = 1;
627
628 return OPJ_TRUE;
629 }
630
opj_jp2_write_ihdr(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)631 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
632 OPJ_UINT32 * p_nb_bytes_written
633 )
634 {
635 OPJ_BYTE * l_ihdr_data, * l_current_ihdr_ptr;
636
637 /* preconditions */
638 assert(jp2 != 00);
639 assert(p_nb_bytes_written != 00);
640
641 /* default image header is 22 bytes wide */
642 l_ihdr_data = (OPJ_BYTE *) opj_calloc(1, 22);
643 if (l_ihdr_data == 00) {
644 return 00;
645 }
646
647 l_current_ihdr_ptr = l_ihdr_data;
648
649 opj_write_bytes(l_current_ihdr_ptr, 22, 4); /* write box size */
650 l_current_ihdr_ptr += 4;
651
652 opj_write_bytes(l_current_ihdr_ptr, JP2_IHDR, 4); /* IHDR */
653 l_current_ihdr_ptr += 4;
654
655 opj_write_bytes(l_current_ihdr_ptr, jp2->h, 4); /* HEIGHT */
656 l_current_ihdr_ptr += 4;
657
658 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
659 l_current_ihdr_ptr += 4;
660
661 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
662 l_current_ihdr_ptr += 2;
663
664 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
665 ++l_current_ihdr_ptr;
666
667 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
668 ++l_current_ihdr_ptr;
669
670 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC,
671 1); /* UnkC, colorspace unknown */
672 ++l_current_ihdr_ptr;
673
674 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR,
675 1); /* IPR, no intellectual property */
676 ++l_current_ihdr_ptr;
677
678 *p_nb_bytes_written = 22;
679
680 return l_ihdr_data;
681 }
682
opj_jp2_write_bpcc(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)683 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
684 OPJ_UINT32 * p_nb_bytes_written
685 )
686 {
687 OPJ_UINT32 i;
688 /* room for 8 bytes for box and 1 byte for each component */
689 OPJ_UINT32 l_bpcc_size;
690 OPJ_BYTE * l_bpcc_data, * l_current_bpcc_ptr;
691
692 /* preconditions */
693 assert(jp2 != 00);
694 assert(p_nb_bytes_written != 00);
695 l_bpcc_size = 8 + jp2->numcomps;
696
697 l_bpcc_data = (OPJ_BYTE *) opj_calloc(1, l_bpcc_size);
698 if (l_bpcc_data == 00) {
699 return 00;
700 }
701
702 l_current_bpcc_ptr = l_bpcc_data;
703
704 opj_write_bytes(l_current_bpcc_ptr, l_bpcc_size,
705 4); /* write box size */
706 l_current_bpcc_ptr += 4;
707
708 opj_write_bytes(l_current_bpcc_ptr, JP2_BPCC, 4); /* BPCC */
709 l_current_bpcc_ptr += 4;
710
711 for (i = 0; i < jp2->numcomps; ++i) {
712 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc,
713 1); /* write each component information */
714 ++l_current_bpcc_ptr;
715 }
716
717 *p_nb_bytes_written = l_bpcc_size;
718
719 return l_bpcc_data;
720 }
721
opj_jp2_read_bpcc(opj_jp2_t * jp2,OPJ_BYTE * p_bpc_header_data,OPJ_UINT32 p_bpc_header_size,opj_event_mgr_t * p_manager)722 static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
723 OPJ_BYTE * p_bpc_header_data,
724 OPJ_UINT32 p_bpc_header_size,
725 opj_event_mgr_t * p_manager
726 )
727 {
728 OPJ_UINT32 i;
729
730 /* preconditions */
731 assert(p_bpc_header_data != 00);
732 assert(jp2 != 00);
733 assert(p_manager != 00);
734
735
736 if (jp2->bpc != 255) {
737 opj_event_msg(p_manager, EVT_WARNING,
738 "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n",
739 jp2->bpc);
740 }
741
742 /* and length is relevant */
743 if (p_bpc_header_size != jp2->numcomps) {
744 opj_event_msg(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
745 return OPJ_FALSE;
746 }
747
748 /* read info for each component */
749 for (i = 0; i < jp2->numcomps; ++i) {
750 opj_read_bytes(p_bpc_header_data, &jp2->comps[i].bpcc,
751 1); /* read each BPCC component */
752 ++p_bpc_header_data;
753 }
754
755 return OPJ_TRUE;
756 }
opj_jp2_write_cdef(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)757 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
758 OPJ_UINT32 * p_nb_bytes_written)
759 {
760 /* room for 8 bytes for box, 2 for n */
761 OPJ_UINT32 l_cdef_size = 10;
762 OPJ_BYTE * l_cdef_data, * l_current_cdef_ptr;
763 OPJ_UINT32 l_value;
764 OPJ_UINT16 i;
765
766 /* preconditions */
767 assert(jp2 != 00);
768 assert(p_nb_bytes_written != 00);
769 assert(jp2->color.jp2_cdef != 00);
770 assert(jp2->color.jp2_cdef->info != 00);
771 assert(jp2->color.jp2_cdef->n > 0U);
772
773 l_cdef_size += 6U * jp2->color.jp2_cdef->n;
774
775 l_cdef_data = (OPJ_BYTE *) opj_malloc(l_cdef_size);
776 if (l_cdef_data == 00) {
777 return 00;
778 }
779
780 l_current_cdef_ptr = l_cdef_data;
781
782 opj_write_bytes(l_current_cdef_ptr, l_cdef_size, 4); /* write box size */
783 l_current_cdef_ptr += 4;
784
785 opj_write_bytes(l_current_cdef_ptr, JP2_CDEF, 4); /* BPCC */
786 l_current_cdef_ptr += 4;
787
788 l_value = jp2->color.jp2_cdef->n;
789 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* N */
790 l_current_cdef_ptr += 2;
791
792 for (i = 0U; i < jp2->color.jp2_cdef->n; ++i) {
793 l_value = jp2->color.jp2_cdef->info[i].cn;
794 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Cni */
795 l_current_cdef_ptr += 2;
796 l_value = jp2->color.jp2_cdef->info[i].typ;
797 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Typi */
798 l_current_cdef_ptr += 2;
799 l_value = jp2->color.jp2_cdef->info[i].asoc;
800 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Asoci */
801 l_current_cdef_ptr += 2;
802 }
803 *p_nb_bytes_written = l_cdef_size;
804
805 return l_cdef_data;
806 }
807
opj_jp2_write_colr(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)808 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
809 OPJ_UINT32 * p_nb_bytes_written
810 )
811 {
812 /* room for 8 bytes for box 3 for common data and variable upon profile*/
813 OPJ_UINT32 l_colr_size = 11;
814 OPJ_BYTE * l_colr_data, * l_current_colr_ptr;
815
816 /* preconditions */
817 assert(jp2 != 00);
818 assert(p_nb_bytes_written != 00);
819 assert(jp2->meth == 1 || jp2->meth == 2);
820
821 switch (jp2->meth) {
822 case 1 :
823 l_colr_size += 4; /* EnumCS */
824 break;
825 case 2 :
826 assert(jp2->color.icc_profile_len); /* ICC profile */
827 l_colr_size += jp2->color.icc_profile_len;
828 break;
829 default :
830 return 00;
831 }
832
833 l_colr_data = (OPJ_BYTE *) opj_calloc(1, l_colr_size);
834 if (l_colr_data == 00) {
835 return 00;
836 }
837
838 l_current_colr_ptr = l_colr_data;
839
840 opj_write_bytes(l_current_colr_ptr, l_colr_size,
841 4); /* write box size */
842 l_current_colr_ptr += 4;
843
844 opj_write_bytes(l_current_colr_ptr, JP2_COLR, 4); /* BPCC */
845 l_current_colr_ptr += 4;
846
847 opj_write_bytes(l_current_colr_ptr, jp2->meth, 1); /* METH */
848 ++l_current_colr_ptr;
849
850 opj_write_bytes(l_current_colr_ptr, jp2->precedence, 1); /* PRECEDENCE */
851 ++l_current_colr_ptr;
852
853 opj_write_bytes(l_current_colr_ptr, jp2->approx, 1); /* APPROX */
854 ++l_current_colr_ptr;
855
856 if (jp2->meth ==
857 1) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */
858 opj_write_bytes(l_current_colr_ptr, jp2->enumcs, 4);
859 } /* EnumCS */
860 else {
861 if (jp2->meth == 2) { /* ICC profile */
862 OPJ_UINT32 i;
863 for (i = 0; i < jp2->color.icc_profile_len; ++i) {
864 opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1);
865 ++l_current_colr_ptr;
866 }
867 }
868 }
869
870 *p_nb_bytes_written = l_colr_size;
871
872 return l_colr_data;
873 }
874
opj_jp2_free_pclr(opj_jp2_color_t * color)875 static void opj_jp2_free_pclr(opj_jp2_color_t *color)
876 {
877 opj_free(color->jp2_pclr->channel_sign);
878 opj_free(color->jp2_pclr->channel_size);
879 opj_free(color->jp2_pclr->entries);
880
881 if (color->jp2_pclr->cmap) {
882 opj_free(color->jp2_pclr->cmap);
883 }
884
885 opj_free(color->jp2_pclr);
886 color->jp2_pclr = NULL;
887 }
888
opj_jp2_check_color(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * p_manager)889 static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
890 opj_event_mgr_t *p_manager)
891 {
892 OPJ_UINT16 i;
893
894 /* testcase 4149.pdf.SIGSEGV.cf7.3501 */
895 if (color->jp2_cdef) {
896 opj_jp2_cdef_info_t *info = color->jp2_cdef->info;
897 OPJ_UINT16 n = color->jp2_cdef->n;
898 OPJ_UINT32 nr_channels =
899 image->numcomps; /* FIXME image->numcomps == jp2->numcomps before color is applied ??? */
900
901 /* cdef applies to cmap channels if any */
902 if (color->jp2_pclr && color->jp2_pclr->cmap) {
903 nr_channels = (OPJ_UINT32)color->jp2_pclr->nr_channels;
904 }
905
906 for (i = 0; i < n; i++) {
907 if (info[i].cn >= nr_channels) {
908 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
909 info[i].cn, nr_channels);
910 return OPJ_FALSE;
911 }
912 if (info[i].asoc == 65535U) {
913 continue;
914 }
915
916 if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
917 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
918 info[i].asoc - 1, nr_channels);
919 return OPJ_FALSE;
920 }
921 }
922
923 /* issue 397 */
924 /* ISO 15444-1 states that if cdef is present, it shall contain a complete list of channel definitions. */
925 while (nr_channels > 0) {
926 for (i = 0; i < n; ++i) {
927 if ((OPJ_UINT32)info[i].cn == (nr_channels - 1U)) {
928 break;
929 }
930 }
931 if (i == n) {
932 opj_event_msg(p_manager, EVT_ERROR, "Incomplete channel definitions.\n");
933 return OPJ_FALSE;
934 }
935 --nr_channels;
936 }
937 }
938
939 /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and
940 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */
941 if (color->jp2_pclr && color->jp2_pclr->cmap) {
942 OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels;
943 opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap;
944 OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE;
945
946 /* verify that all original components match an existing one */
947 for (i = 0; i < nr_channels; i++) {
948 if (cmap[i].cmp >= image->numcomps) {
949 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
950 cmap[i].cmp, image->numcomps);
951 is_sane = OPJ_FALSE;
952 }
953 }
954
955 pcol_usage = (OPJ_BOOL *) opj_calloc(nr_channels, sizeof(OPJ_BOOL));
956 if (!pcol_usage) {
957 opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n");
958 return OPJ_FALSE;
959 }
960 /* verify that no component is targeted more than once */
961 for (i = 0; i < nr_channels; i++) {
962 OPJ_BYTE mtyp = cmap[i].mtyp;
963 OPJ_BYTE pcol = cmap[i].pcol;
964 /* See ISO 15444-1 Table I.14 – MTYPi field values */
965 if (mtyp != 0 && mtyp != 1) {
966 opj_event_msg(p_manager, EVT_ERROR,
967 "Invalid value for cmap[%d].mtyp = %d.\n", i,
968 mtyp);
969 is_sane = OPJ_FALSE;
970 } else if (pcol >= nr_channels) {
971 opj_event_msg(p_manager, EVT_ERROR,
972 "Invalid component/palette index for direct mapping %d.\n", pcol);
973 is_sane = OPJ_FALSE;
974 } else if (pcol_usage[pcol] && mtyp == 1) {
975 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
976 is_sane = OPJ_FALSE;
977 } else if (mtyp == 0 && pcol != 0) {
978 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
979 * the value of this field shall be 0. */
980 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i,
981 pcol);
982 is_sane = OPJ_FALSE;
983 } else if (mtyp == 1 && pcol != i) {
984 /* OpenJPEG implementation limitation. See assert(i == pcol); */
985 /* in opj_jp2_apply_pclr() */
986 opj_event_msg(p_manager, EVT_ERROR,
987 "Implementation limitation: for palette mapping, "
988 "pcol[%d] should be equal to %d, but is equal "
989 "to %d.\n", i, i, pcol);
990 is_sane = OPJ_FALSE;
991 } else {
992 pcol_usage[pcol] = OPJ_TRUE;
993 }
994 }
995 /* verify that all components are targeted at least once */
996 for (i = 0; i < nr_channels; i++) {
997 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
998 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n",
999 i);
1000 is_sane = OPJ_FALSE;
1001 }
1002 }
1003 /* Issue 235/447 weird cmap */
1004 if (1 && is_sane && (image->numcomps == 1U)) {
1005 for (i = 0; i < nr_channels; i++) {
1006 if (!pcol_usage[i]) {
1007 is_sane = 0U;
1008 opj_event_msg(p_manager, EVT_WARNING,
1009 "Component mapping seems wrong. Trying to correct.\n", i);
1010 break;
1011 }
1012 }
1013 if (!is_sane) {
1014 is_sane = OPJ_TRUE;
1015 for (i = 0; i < nr_channels; i++) {
1016 cmap[i].mtyp = 1U;
1017 cmap[i].pcol = (OPJ_BYTE) i;
1018 }
1019 }
1020 }
1021 opj_free(pcol_usage);
1022 if (!is_sane) {
1023 return OPJ_FALSE;
1024 }
1025 }
1026
1027 return OPJ_TRUE;
1028 }
1029
1030 /* file9.jp2 */
opj_jp2_apply_pclr(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * p_manager)1031 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
1032 opj_jp2_color_t *color,
1033 opj_event_mgr_t * p_manager)
1034 {
1035 opj_image_comp_t *old_comps, *new_comps;
1036 OPJ_BYTE *channel_size, *channel_sign;
1037 OPJ_UINT32 *entries;
1038 opj_jp2_cmap_comp_t *cmap;
1039 OPJ_INT32 *src, *dst;
1040 OPJ_UINT32 j, max;
1041 OPJ_UINT16 i, nr_channels, cmp, pcol;
1042 OPJ_INT32 k, top_k;
1043
1044 channel_size = color->jp2_pclr->channel_size;
1045 channel_sign = color->jp2_pclr->channel_sign;
1046 entries = color->jp2_pclr->entries;
1047 cmap = color->jp2_pclr->cmap;
1048 nr_channels = color->jp2_pclr->nr_channels;
1049
1050 for (i = 0; i < nr_channels; ++i) {
1051 /* Palette mapping: */
1052 cmp = cmap[i].cmp;
1053 if (image->comps[cmp].data == NULL) {
1054 opj_event_msg(p_manager, EVT_ERROR,
1055 "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i);
1056 return OPJ_FALSE;
1057 }
1058 }
1059
1060 old_comps = image->comps;
1061 /* Overflow check: prevent integer overflow */
1062 for (i = 0; i < nr_channels; ++i) {
1063 cmp = cmap[i].cmp;
1064 if (old_comps[cmp].h == 0 || old_comps[cmp].w > ((OPJ_UINT32)-1) / sizeof(OPJ_INT32) / old_comps[cmp].h) {
1065 return OPJ_FALSE;
1066 }
1067 }
1068
1069 new_comps = (opj_image_comp_t*)
1070 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
1071 if (!new_comps) {
1072 opj_event_msg(p_manager, EVT_ERROR,
1073 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1074 return OPJ_FALSE;
1075 }
1076 for (i = 0; i < nr_channels; ++i) {
1077 pcol = cmap[i].pcol;
1078 cmp = cmap[i].cmp;
1079
1080 /* Direct use */
1081 if (cmap[i].mtyp == 0) {
1082 assert(pcol == 0);
1083 new_comps[i] = old_comps[cmp];
1084 } else {
1085 assert( i == pcol ); // probably wrong?
1086 new_comps[i] = old_comps[cmp];
1087 }
1088
1089 /* Palette mapping: */
1090 new_comps[i].data = (OPJ_INT32*)
1091 opj_image_data_alloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(OPJ_INT32));
1092 if (!new_comps[i].data) {
1093 while (i > 0) {
1094 -- i;
1095 opj_image_data_free(new_comps[i].data);
1096 }
1097 opj_free(new_comps);
1098 opj_event_msg(p_manager, EVT_ERROR,
1099 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1100 return OPJ_FALSE;
1101 }
1102 new_comps[i].prec = channel_size[i];
1103 new_comps[i].sgnd = channel_sign[i];
1104 }
1105
1106 top_k = color->jp2_pclr->nr_entries - 1;
1107
1108 for (i = 0; i < nr_channels; ++i) {
1109 /* Palette mapping: */
1110 cmp = cmap[i].cmp;
1111 pcol = cmap[i].pcol;
1112 src = old_comps[cmp].data;
1113 dst = new_comps[i].data;
1114 max = new_comps[i].w * new_comps[i].h;
1115
1116 /* Prevent null pointer access */
1117 if (!src || !dst) {
1118 for (j = 0; j < nr_channels; ++j) {
1119 opj_image_data_free(new_comps[j].data);
1120 }
1121 opj_free(new_comps);
1122 new_comps = NULL;
1123 return OPJ_FALSE;
1124 }
1125
1126 /* Direct use: */
1127 if (cmap[i].mtyp == 0) {
1128 assert( cmp == 0 ); // probably wrong.
1129 for (j = 0; j < max; ++j) {
1130 dst[j] = src[j];
1131 }
1132 } else {
1133 assert( i == pcol ); // probably wrong?
1134 for (j = 0; j < max; ++j) {
1135 /* The index */
1136 if ((k = src[j]) < 0) {
1137 k = 0;
1138 } else if (k > top_k) {
1139 k = top_k;
1140 }
1141
1142 /* The colour */
1143 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
1144 }
1145 }
1146 }
1147
1148 max = image->numcomps;
1149 for (i = 0; i < max; ++i) {
1150 if (old_comps[i].data) {
1151 opj_image_data_free(old_comps[i].data);
1152 }
1153 }
1154
1155 opj_free(old_comps);
1156 image->comps = new_comps;
1157 image->numcomps = nr_channels;
1158
1159 return OPJ_TRUE;
1160 }/* apply_pclr() */
1161
opj_jp2_read_pclr(opj_jp2_t * jp2,OPJ_BYTE * p_pclr_header_data,OPJ_UINT32 p_pclr_header_size,opj_event_mgr_t * p_manager)1162 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
1163 OPJ_BYTE * p_pclr_header_data,
1164 OPJ_UINT32 p_pclr_header_size,
1165 opj_event_mgr_t * p_manager
1166 )
1167 {
1168 opj_jp2_pclr_t *jp2_pclr;
1169 OPJ_BYTE *channel_size, *channel_sign;
1170 OPJ_UINT32 *entries;
1171 OPJ_UINT16 nr_entries, nr_channels;
1172 OPJ_UINT16 i, j;
1173 OPJ_UINT32 l_value;
1174 OPJ_BYTE *orig_header_data = p_pclr_header_data;
1175
1176 /* preconditions */
1177 assert(p_pclr_header_data != 00);
1178 assert(jp2 != 00);
1179 assert(p_manager != 00);
1180 (void)p_pclr_header_size;
1181
1182 if (jp2->color.jp2_pclr) {
1183 return OPJ_FALSE;
1184 }
1185
1186 if (p_pclr_header_size < 3) {
1187 return OPJ_FALSE;
1188 }
1189
1190 opj_read_bytes(p_pclr_header_data, &l_value, 2); /* NE */
1191 p_pclr_header_data += 2;
1192 nr_entries = (OPJ_UINT16) l_value;
1193 if ((nr_entries == 0U) || (nr_entries > 1024U)) {
1194 opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n",
1195 (int)nr_entries);
1196 return OPJ_FALSE;
1197 }
1198
1199 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */
1200 ++p_pclr_header_data;
1201 nr_channels = (OPJ_UINT16) l_value;
1202 if (nr_channels == 0U) {
1203 opj_event_msg(p_manager, EVT_ERROR,
1204 "Invalid PCLR box. Reports 0 palette columns\n");
1205 return OPJ_FALSE;
1206 }
1207
1208 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) {
1209 return OPJ_FALSE;
1210 }
1211
1212 entries = (OPJ_UINT32*) opj_malloc((size_t)nr_channels * nr_entries * sizeof(
1213 OPJ_UINT32));
1214 if (!entries) {
1215 return OPJ_FALSE;
1216 }
1217 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
1218 if (!channel_size) {
1219 opj_free(entries);
1220 return OPJ_FALSE;
1221 }
1222 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
1223 if (!channel_sign) {
1224 opj_free(entries);
1225 opj_free(channel_size);
1226 return OPJ_FALSE;
1227 }
1228
1229 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
1230 if (!jp2_pclr) {
1231 opj_free(entries);
1232 opj_free(channel_size);
1233 opj_free(channel_sign);
1234 return OPJ_FALSE;
1235 }
1236
1237 jp2_pclr->channel_sign = channel_sign;
1238 jp2_pclr->channel_size = channel_size;
1239 jp2_pclr->entries = entries;
1240 jp2_pclr->nr_entries = nr_entries;
1241 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
1242 jp2_pclr->cmap = NULL;
1243
1244 jp2->color.jp2_pclr = jp2_pclr;
1245
1246 for (i = 0; i < nr_channels; ++i) {
1247 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* Bi */
1248 ++p_pclr_header_data;
1249
1250 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1251 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1252 }
1253
1254 for (j = 0; j < nr_entries; ++j) {
1255 for (i = 0; i < nr_channels; ++i) {
1256 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3);
1257
1258 if (bytes_to_read > sizeof(OPJ_UINT32)) {
1259 bytes_to_read = sizeof(OPJ_UINT32);
1260 }
1261 if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data -
1262 orig_header_data) + (ptrdiff_t)bytes_to_read) {
1263 return OPJ_FALSE;
1264 }
1265
1266 opj_read_bytes(p_pclr_header_data, &l_value, bytes_to_read); /* Cji */
1267 p_pclr_header_data += bytes_to_read;
1268 *entries = (OPJ_UINT32) l_value;
1269 entries++;
1270 }
1271 }
1272
1273 return OPJ_TRUE;
1274 }
1275
opj_jp2_read_cmap(opj_jp2_t * jp2,OPJ_BYTE * p_cmap_header_data,OPJ_UINT32 p_cmap_header_size,opj_event_mgr_t * p_manager)1276 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
1277 OPJ_BYTE * p_cmap_header_data,
1278 OPJ_UINT32 p_cmap_header_size,
1279 opj_event_mgr_t * p_manager
1280 )
1281 {
1282 opj_jp2_cmap_comp_t *cmap;
1283 OPJ_BYTE i, nr_channels;
1284 OPJ_UINT32 l_value;
1285
1286 /* preconditions */
1287 assert(jp2 != 00);
1288 assert(p_cmap_header_data != 00);
1289 assert(p_manager != 00);
1290 (void)p_cmap_header_size;
1291
1292 /* Need nr_channels: */
1293 if (jp2->color.jp2_pclr == NULL) {
1294 opj_event_msg(p_manager, EVT_ERROR,
1295 "Need to read a PCLR box before the CMAP box.\n");
1296 return OPJ_FALSE;
1297 }
1298
1299 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1300 * inside a JP2 Header box' :
1301 */
1302 if (jp2->color.jp2_pclr->cmap) {
1303 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1304 return OPJ_FALSE;
1305 }
1306
1307 nr_channels = jp2->color.jp2_pclr->nr_channels;
1308 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1309 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1310 return OPJ_FALSE;
1311 }
1312
1313 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(
1314 opj_jp2_cmap_comp_t));
1315 if (!cmap) {
1316 return OPJ_FALSE;
1317 }
1318
1319
1320 for (i = 0; i < nr_channels; ++i) {
1321 opj_read_bytes_BE(p_cmap_header_data, &l_value, 2); /* CMP^i */
1322 p_cmap_header_data += 2;
1323 cmap[i].cmp = (OPJ_UINT16) l_value;
1324
1325 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1326 ++p_cmap_header_data;
1327 cmap[i].mtyp = (OPJ_BYTE) l_value;
1328
1329 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1330 ++p_cmap_header_data;
1331 cmap[i].pcol = (OPJ_BYTE) l_value;
1332 }
1333
1334 jp2->color.jp2_pclr->cmap = cmap;
1335
1336 return OPJ_TRUE;
1337 }
1338
opj_jp2_apply_cdef(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * manager)1339 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
1340 opj_event_mgr_t *manager)
1341 {
1342 opj_jp2_cdef_info_t *info;
1343 OPJ_UINT16 i, n, cn, asoc, acn;
1344
1345 info = color->jp2_cdef->info;
1346 n = color->jp2_cdef->n;
1347
1348 for (i = 0; i < n; ++i) {
1349 /* WATCH: acn = asoc - 1 ! */
1350 asoc = info[i].asoc;
1351 cn = info[i].cn;
1352
1353 if (cn >= image->numcomps) {
1354 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
1355 cn, image->numcomps);
1356 continue;
1357 }
1358 if (asoc == 0 || asoc == 65535) {
1359 image->comps[cn].alpha = info[i].typ;
1360 continue;
1361 }
1362
1363 acn = (OPJ_UINT16)(asoc - 1);
1364 if (acn >= image->numcomps) {
1365 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
1366 acn, image->numcomps);
1367 continue;
1368 }
1369
1370 /* Swap only if color channel */
1371 if ((cn != acn) && (info[i].typ == 0)) {
1372 opj_image_comp_t saved;
1373 OPJ_UINT16 j;
1374
1375 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1376 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1377 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1378
1379 /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
1380 for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
1381 if (info[j].cn == cn) {
1382 info[j].cn = acn;
1383 } else if (info[j].cn == acn) {
1384 info[j].cn = cn;
1385 }
1386 /* asoc is related to color index. Do not update. */
1387 }
1388 }
1389
1390 image->comps[cn].alpha = info[i].typ;
1391 }
1392
1393 if (color->jp2_cdef->info) {
1394 opj_free(color->jp2_cdef->info);
1395 }
1396
1397 opj_free(color->jp2_cdef);
1398 color->jp2_cdef = NULL;
1399
1400 }/* jp2_apply_cdef() */
1401
opj_jp2_read_cdef(opj_jp2_t * jp2,OPJ_BYTE * p_cdef_header_data,OPJ_UINT32 p_cdef_header_size,opj_event_mgr_t * p_manager)1402 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
1403 OPJ_BYTE * p_cdef_header_data,
1404 OPJ_UINT32 p_cdef_header_size,
1405 opj_event_mgr_t * p_manager
1406 )
1407 {
1408 opj_jp2_cdef_info_t *cdef_info;
1409 OPJ_UINT16 i;
1410 OPJ_UINT32 l_value;
1411
1412 /* preconditions */
1413 assert(jp2 != 00);
1414 assert(p_cdef_header_data != 00);
1415 assert(p_manager != 00);
1416 (void)p_cdef_header_size;
1417
1418 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1419 * inside a JP2 Header box.'*/
1420 if (jp2->color.jp2_cdef) {
1421 return OPJ_FALSE;
1422 }
1423
1424 if (p_cdef_header_size < 2) {
1425 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1426 return OPJ_FALSE;
1427 }
1428
1429 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
1430 p_cdef_header_data += 2;
1431
1432 if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
1433 opj_event_msg(p_manager, EVT_ERROR,
1434 "Number of channel description is equal to zero in CDEF box.\n");
1435 return OPJ_FALSE;
1436 }
1437
1438 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1439 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1440 return OPJ_FALSE;
1441 }
1442
1443 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
1444 opj_jp2_cdef_info_t));
1445 if (!cdef_info) {
1446 return OPJ_FALSE;
1447 }
1448
1449 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1450 if (!jp2->color.jp2_cdef) {
1451 opj_free(cdef_info);
1452 return OPJ_FALSE;
1453 }
1454 jp2->color.jp2_cdef->info = cdef_info;
1455 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1456
1457 for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1458 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1459 p_cdef_header_data += 2;
1460 cdef_info[i].cn = (OPJ_UINT16) l_value;
1461
1462 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1463 p_cdef_header_data += 2;
1464 cdef_info[i].typ = (OPJ_UINT16) l_value;
1465
1466 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1467 p_cdef_header_data += 2;
1468 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1469 }
1470
1471 return OPJ_TRUE;
1472 }
1473
opj_jp2_read_colr(opj_jp2_t * jp2,OPJ_BYTE * p_colr_header_data,OPJ_UINT32 p_colr_header_size,opj_event_mgr_t * p_manager)1474 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
1475 OPJ_BYTE * p_colr_header_data,
1476 OPJ_UINT32 p_colr_header_size,
1477 opj_event_mgr_t * p_manager
1478 )
1479 {
1480 OPJ_UINT32 l_value;
1481
1482 /* preconditions */
1483 assert(jp2 != 00);
1484 assert(p_colr_header_data != 00);
1485 assert(p_manager != 00);
1486
1487 if (p_colr_header_size < 3) {
1488 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1489 return OPJ_FALSE;
1490 }
1491
1492 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1493 * Specification boxes after the first.'
1494 */
1495 if (jp2->color.jp2_has_colr) {
1496 opj_event_msg(p_manager, EVT_INFO,
1497 "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1498 p_colr_header_data += p_colr_header_size;
1499 return OPJ_TRUE;
1500 }
1501
1502 opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
1503 ++p_colr_header_data;
1504
1505 opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
1506 ++p_colr_header_data;
1507
1508 opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
1509 ++p_colr_header_data;
1510
1511 if (jp2->meth == 1) {
1512 if (p_colr_header_size < 7) {
1513 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
1514 p_colr_header_size);
1515 return OPJ_FALSE;
1516 }
1517 if ((p_colr_header_size > 7) &&
1518 (jp2->enumcs != 14)) { /* handled below for CIELab) */
1519 /* testcase Altona_Technical_v20_x4.pdf */
1520 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
1521 p_colr_header_size);
1522 }
1523
1524 opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
1525
1526 p_colr_header_data += 4;
1527
1528 if (jp2->enumcs == 14) { /* CIELab */
1529 OPJ_UINT32 *cielab;
1530 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1531
1532 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1533 if (cielab == NULL) {
1534 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
1535 return OPJ_FALSE;
1536 }
1537 cielab[0] = 14; /* enumcs */
1538
1539 /* default values */
1540 rl = ra = rb = ol = oa = ob = 0;
1541 il = 0x00443530; /* D50 */
1542 cielab[1] = 0x44454600;/* DEF */
1543
1544 if (p_colr_header_size == 35) {
1545 opj_read_bytes(p_colr_header_data, &rl, 4);
1546 p_colr_header_data += 4;
1547 opj_read_bytes(p_colr_header_data, &ol, 4);
1548 p_colr_header_data += 4;
1549 opj_read_bytes(p_colr_header_data, &ra, 4);
1550 p_colr_header_data += 4;
1551 opj_read_bytes(p_colr_header_data, &oa, 4);
1552 p_colr_header_data += 4;
1553 opj_read_bytes(p_colr_header_data, &rb, 4);
1554 p_colr_header_data += 4;
1555 opj_read_bytes(p_colr_header_data, &ob, 4);
1556 p_colr_header_data += 4;
1557 opj_read_bytes(p_colr_header_data, &il, 4);
1558 p_colr_header_data += 4;
1559
1560 cielab[1] = 0;
1561 } else if (p_colr_header_size != 7) {
1562 opj_event_msg(p_manager, EVT_WARNING,
1563 "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
1564 }
1565 cielab[2] = rl;
1566 cielab[4] = ra;
1567 cielab[6] = rb;
1568 cielab[3] = ol;
1569 cielab[5] = oa;
1570 cielab[7] = ob;
1571 cielab[8] = il;
1572
1573 jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
1574 jp2->color.icc_profile_len = 0;
1575 }
1576 jp2->color.jp2_has_colr = 1;
1577 } else if (jp2->meth == 2) {
1578 /* ICC profile */
1579 OPJ_INT32 it_icc_value = 0;
1580 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1581
1582 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1583 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
1584 if (!jp2->color.icc_profile_buf) {
1585 jp2->color.icc_profile_len = 0;
1586 return OPJ_FALSE;
1587 }
1588
1589 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
1590 opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
1591 ++p_colr_header_data;
1592 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1593 }
1594
1595 jp2->color.jp2_has_colr = 1;
1596 } else if (jp2->meth > 2) {
1597 /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
1598 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1599 opj_event_msg(p_manager, EVT_INFO,
1600 "COLR BOX meth value is not a regular value (%d), "
1601 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1602 }
1603 if (jp2->color.jp2_has_colr) {
1604 jp2->j2k->enumcs = jp2->enumcs;
1605 }
1606 return OPJ_TRUE;
1607 }
1608
opj_jp2_decode(opj_jp2_t * jp2,opj_stream_private_t * p_stream,opj_image_t * p_image,opj_event_mgr_t * p_manager)1609 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1610 opj_stream_private_t *p_stream,
1611 opj_image_t* p_image,
1612 opj_event_mgr_t * p_manager)
1613 {
1614 if (!p_image) {
1615 return OPJ_FALSE;
1616 }
1617
1618 /* J2K decoding */
1619 if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
1620 opj_event_msg(p_manager, EVT_ERROR,
1621 "Failed to decode the codestream in the JP2 file\n");
1622 return OPJ_FALSE;
1623 }
1624
1625 if (jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
1626 /* Bypass all JP2 component transforms */
1627 return OPJ_TRUE;
1628 }
1629
1630 if (!jp2->ignore_pclr_cmap_cdef) {
1631 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1632 return OPJ_FALSE;
1633 }
1634
1635 /* Set Image Color Space */
1636 if (jp2->enumcs == 16) {
1637 p_image->color_space = OPJ_CLRSPC_SRGB;
1638 } else if (jp2->enumcs == 17) {
1639 p_image->color_space = OPJ_CLRSPC_GRAY;
1640 } else if (jp2->enumcs == 18) {
1641 p_image->color_space = OPJ_CLRSPC_SYCC;
1642 } else if (jp2->enumcs == 24) {
1643 p_image->color_space = OPJ_CLRSPC_EYCC;
1644 } else if (jp2->enumcs == 12) {
1645 p_image->color_space = OPJ_CLRSPC_CMYK;
1646 } else {
1647 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
1648 }
1649
1650 if (jp2->color.jp2_pclr) {
1651 /* Part 1, I.5.3.4: Either both or none : */
1652 if (!jp2->color.jp2_pclr->cmap) {
1653 opj_jp2_free_pclr(&(jp2->color));
1654 } else if (p_image->pdfium_use_colorspace) {
1655 if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
1656 return OPJ_FALSE;
1657 }
1658 }
1659 }
1660
1661 /* Apply the color space if needed */
1662 if (jp2->color.jp2_cdef) {
1663 opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
1664 }
1665
1666 if (jp2->color.icc_profile_buf) {
1667 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1668 p_image->icc_profile_len = jp2->color.icc_profile_len;
1669 jp2->color.icc_profile_buf = NULL;
1670 }
1671 }
1672
1673 return OPJ_TRUE;
1674 }
1675
opj_jp2_write_jp2h(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)1676 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1677 opj_stream_private_t *stream,
1678 opj_event_mgr_t * p_manager
1679 )
1680 {
1681 opj_jp2_img_header_writer_handler_t l_writers [4];
1682 opj_jp2_img_header_writer_handler_t * l_current_writer;
1683
1684 OPJ_INT32 i, l_nb_pass;
1685 /* size of data for super box*/
1686 OPJ_UINT32 l_jp2h_size = 8;
1687 OPJ_BOOL l_result = OPJ_TRUE;
1688
1689 /* to store the data of the super box */
1690 OPJ_BYTE l_jp2h_data [8];
1691
1692 /* preconditions */
1693 assert(stream != 00);
1694 assert(jp2 != 00);
1695 assert(p_manager != 00);
1696
1697 memset(l_writers, 0, sizeof(l_writers));
1698
1699 if (jp2->bpc == 255) {
1700 l_nb_pass = 3;
1701 l_writers[0].handler = opj_jp2_write_ihdr;
1702 l_writers[1].handler = opj_jp2_write_bpcc;
1703 l_writers[2].handler = opj_jp2_write_colr;
1704 } else {
1705 l_nb_pass = 2;
1706 l_writers[0].handler = opj_jp2_write_ihdr;
1707 l_writers[1].handler = opj_jp2_write_colr;
1708 }
1709
1710 if (jp2->color.jp2_cdef != NULL) {
1711 l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
1712 l_nb_pass++;
1713 }
1714
1715 /* write box header */
1716 /* write JP2H type */
1717 opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
1718
1719 l_current_writer = l_writers;
1720 for (i = 0; i < l_nb_pass; ++i) {
1721 l_current_writer->m_data = l_current_writer->handler(jp2,
1722 &(l_current_writer->m_size));
1723 if (l_current_writer->m_data == 00) {
1724 opj_event_msg(p_manager, EVT_ERROR,
1725 "Not enough memory to hold JP2 Header data\n");
1726 l_result = OPJ_FALSE;
1727 break;
1728 }
1729
1730 l_jp2h_size += l_current_writer->m_size;
1731 ++l_current_writer;
1732 }
1733
1734 if (! l_result) {
1735 l_current_writer = l_writers;
1736 for (i = 0; i < l_nb_pass; ++i) {
1737 if (l_current_writer->m_data != 00) {
1738 opj_free(l_current_writer->m_data);
1739 }
1740 ++l_current_writer;
1741 }
1742
1743 return OPJ_FALSE;
1744 }
1745
1746 /* write super box size */
1747 opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
1748
1749 /* write super box data on stream */
1750 if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
1751 opj_event_msg(p_manager, EVT_ERROR,
1752 "Stream error while writing JP2 Header box\n");
1753 l_result = OPJ_FALSE;
1754 }
1755
1756 if (l_result) {
1757 l_current_writer = l_writers;
1758 for (i = 0; i < l_nb_pass; ++i) {
1759 if (opj_stream_write_data(stream, l_current_writer->m_data,
1760 l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
1761 opj_event_msg(p_manager, EVT_ERROR,
1762 "Stream error while writing JP2 Header box\n");
1763 l_result = OPJ_FALSE;
1764 break;
1765 }
1766 ++l_current_writer;
1767 }
1768 }
1769
1770 l_current_writer = l_writers;
1771
1772 /* cleanup */
1773 for (i = 0; i < l_nb_pass; ++i) {
1774 if (l_current_writer->m_data != 00) {
1775 opj_free(l_current_writer->m_data);
1776 }
1777 ++l_current_writer;
1778 }
1779
1780 return l_result;
1781 }
1782
opj_jp2_write_ftyp(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1783 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1784 opj_stream_private_t *cio,
1785 opj_event_mgr_t * p_manager)
1786 {
1787 OPJ_UINT32 i;
1788 OPJ_UINT32 l_ftyp_size;
1789 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1790 OPJ_BOOL l_result;
1791
1792 /* preconditions */
1793 assert(cio != 00);
1794 assert(jp2 != 00);
1795 assert(p_manager != 00);
1796 l_ftyp_size = 16 + 4 * jp2->numcl;
1797
1798 l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
1799
1800 if (l_ftyp_data == 00) {
1801 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1802 return OPJ_FALSE;
1803 }
1804
1805 l_current_data_ptr = l_ftyp_data;
1806
1807 opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
1808 l_current_data_ptr += 4;
1809
1810 opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
1811 l_current_data_ptr += 4;
1812
1813 opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
1814 l_current_data_ptr += 4;
1815
1816 opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
1817 l_current_data_ptr += 4;
1818
1819 for (i = 0; i < jp2->numcl; i++) {
1820 opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
1821 }
1822
1823 l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
1824 p_manager) == l_ftyp_size);
1825 if (! l_result) {
1826 opj_event_msg(p_manager, EVT_ERROR,
1827 "Error while writing ftyp data to stream\n");
1828 }
1829
1830 opj_free(l_ftyp_data);
1831
1832 return l_result;
1833 }
1834
opj_jp2_write_jp2c(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1835 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1836 opj_stream_private_t *cio,
1837 opj_event_mgr_t * p_manager)
1838 {
1839 OPJ_OFF_T j2k_codestream_exit;
1840 OPJ_BYTE l_data_header [8];
1841
1842 /* preconditions */
1843 assert(jp2 != 00);
1844 assert(cio != 00);
1845 assert(p_manager != 00);
1846 assert(opj_stream_has_seek(cio));
1847
1848 j2k_codestream_exit = opj_stream_tell(cio);
1849 opj_write_bytes(l_data_header,
1850 (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
1851 4); /* size of codestream */
1852 opj_write_bytes(l_data_header + 4, JP2_JP2C,
1853 4); /* JP2C */
1854
1855 if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
1856 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1857 return OPJ_FALSE;
1858 }
1859
1860 if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
1861 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1862 return OPJ_FALSE;
1863 }
1864
1865 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
1866 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1867 return OPJ_FALSE;
1868 }
1869
1870 return OPJ_TRUE;
1871 }
1872
opj_jp2_write_jp(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1873 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
1874 opj_stream_private_t *cio,
1875 opj_event_mgr_t * p_manager)
1876 {
1877 /* 12 bytes will be read */
1878 OPJ_BYTE l_signature_data [12];
1879
1880 /* preconditions */
1881 assert(cio != 00);
1882 assert(jp2 != 00);
1883 assert(p_manager != 00);
1884
1885 OPJ_UNUSED(jp2);
1886
1887 /* write box length */
1888 opj_write_bytes(l_signature_data, 12, 4);
1889 /* writes box type */
1890 opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
1891 /* writes magic number*/
1892 opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
1893
1894 if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
1895 return OPJ_FALSE;
1896 }
1897
1898 return OPJ_TRUE;
1899 }
1900
1901 /* ----------------------------------------------------------------------- */
1902 /* JP2 decoder interface */
1903 /* ----------------------------------------------------------------------- */
1904
opj_jp2_setup_decoder(opj_jp2_t * jp2,opj_dparameters_t * parameters)1905 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1906 {
1907 /* setup the J2K codec */
1908 opj_j2k_setup_decoder(jp2->j2k, parameters);
1909
1910 /* further JP2 initializations go here */
1911 jp2->color.jp2_has_colr = 0;
1912 jp2->comps = NULL;
1913 jp2->ignore_pclr_cmap_cdef = parameters->flags &
1914 OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1915 }
1916
opj_jp2_set_threads(opj_jp2_t * jp2,OPJ_UINT32 num_threads)1917 OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
1918 {
1919 return opj_j2k_set_threads(jp2->j2k, num_threads);
1920 }
1921
1922 /* ----------------------------------------------------------------------- */
1923 /* JP2 encoder interface */
1924 /* ----------------------------------------------------------------------- */
1925
opj_jp2_setup_encoder(opj_jp2_t * jp2,opj_cparameters_t * parameters,opj_image_t * image,opj_event_mgr_t * p_manager)1926 OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
1927 opj_cparameters_t *parameters,
1928 opj_image_t *image,
1929 opj_event_mgr_t * p_manager)
1930 {
1931 OPJ_UINT32 i;
1932 OPJ_UINT32 depth_0;
1933 OPJ_UINT32 sign;
1934 OPJ_UINT32 alpha_count;
1935 OPJ_UINT32 color_channels = 0U;
1936 OPJ_UINT32 alpha_channel = 0U;
1937
1938
1939 if (!jp2 || !parameters || !image) {
1940 return OPJ_FALSE;
1941 }
1942
1943 /* setup the J2K codec */
1944 /* ------------------- */
1945
1946 /* Check if number of components respects standard */
1947 if (image->numcomps < 1 || image->numcomps > 16384) {
1948 opj_event_msg(p_manager, EVT_ERROR,
1949 "Invalid number of components specified while setting up JP2 encoder\n");
1950 return OPJ_FALSE;
1951 }
1952
1953 if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
1954 p_manager) == OPJ_FALSE) {
1955 return OPJ_FALSE;
1956 }
1957
1958 /* setup the JP2 codec */
1959 /* ------------------- */
1960
1961 /* Profile box */
1962
1963 jp2->brand = JP2_JP2; /* BR */
1964 jp2->minversion = 0; /* MinV */
1965 jp2->numcl = 1;
1966 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1967 if (!jp2->cl) {
1968 opj_event_msg(p_manager, EVT_ERROR,
1969 "Not enough memory when setup the JP2 encoder\n");
1970 return OPJ_FALSE;
1971 }
1972 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1973
1974 /* Image Header box */
1975
1976 jp2->numcomps = image->numcomps; /* NC */
1977 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
1978 opj_jp2_comps_t));
1979 if (!jp2->comps) {
1980 opj_event_msg(p_manager, EVT_ERROR,
1981 "Not enough memory when setup the JP2 encoder\n");
1982 /* Memory of jp2->cl will be freed by opj_jp2_destroy */
1983 return OPJ_FALSE;
1984 }
1985
1986 jp2->h = image->y1 - image->y0; /* HEIGHT */
1987 jp2->w = image->x1 - image->x0; /* WIDTH */
1988 /* BPC */
1989 depth_0 = image->comps[0].prec - 1;
1990 sign = image->comps[0].sgnd;
1991 jp2->bpc = depth_0 + (sign << 7);
1992 for (i = 1; i < image->numcomps; i++) {
1993 OPJ_UINT32 depth = image->comps[i].prec - 1;
1994 sign = image->comps[i].sgnd;
1995 if (depth_0 != depth) {
1996 jp2->bpc = 255;
1997 }
1998 }
1999 jp2->C = 7; /* C : Always 7 */
2000 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
2001 jp2->IPR = 0; /* IPR, no intellectual property */
2002
2003 /* BitsPerComponent box */
2004 for (i = 0; i < image->numcomps; i++) {
2005 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
2006 }
2007
2008 /* Colour Specification box */
2009 if (image->icc_profile_len) {
2010 jp2->meth = 2;
2011 jp2->enumcs = 0;
2012 } else {
2013 jp2->meth = 1;
2014 if (image->color_space == 1) {
2015 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
2016 } else if (image->color_space == 2) {
2017 jp2->enumcs = 17; /* greyscale */
2018 } else if (image->color_space == 3) {
2019 jp2->enumcs = 18; /* YUV */
2020 }
2021 }
2022
2023 /* Channel Definition box */
2024 /* FIXME not provided by parameters */
2025 /* We try to do what we can... */
2026 alpha_count = 0U;
2027 for (i = 0; i < image->numcomps; i++) {
2028 if (image->comps[i].alpha != 0) {
2029 alpha_count++;
2030 alpha_channel = i;
2031 }
2032 }
2033 if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
2034 switch (jp2->enumcs) {
2035 case 16:
2036 case 18:
2037 color_channels = 3;
2038 break;
2039 case 17:
2040 color_channels = 1;
2041 break;
2042 default:
2043 alpha_count = 0U;
2044 break;
2045 }
2046 if (alpha_count == 0U) {
2047 opj_event_msg(p_manager, EVT_WARNING,
2048 "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
2049 } else if (image->numcomps < (color_channels + 1)) {
2050 opj_event_msg(p_manager, EVT_WARNING,
2051 "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
2052 alpha_count = 0U;
2053 } else if ((OPJ_UINT32)alpha_channel < color_channels) {
2054 opj_event_msg(p_manager, EVT_WARNING,
2055 "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
2056 alpha_count = 0U;
2057 }
2058 } else if (alpha_count > 1) {
2059 opj_event_msg(p_manager, EVT_WARNING,
2060 "Multiple alpha channels specified. No cdef box will be created.\n");
2061 }
2062 if (alpha_count == 1U) { /* if here, we know what we can do */
2063 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
2064 if (!jp2->color.jp2_cdef) {
2065 opj_event_msg(p_manager, EVT_ERROR,
2066 "Not enough memory to setup the JP2 encoder\n");
2067 return OPJ_FALSE;
2068 }
2069 /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
2070 /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
2071 jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
2072 image->numcomps * sizeof(opj_jp2_cdef_info_t));
2073 if (!jp2->color.jp2_cdef->info) {
2074 /* memory will be freed by opj_jp2_destroy */
2075 opj_event_msg(p_manager, EVT_ERROR,
2076 "Not enough memory to setup the JP2 encoder\n");
2077 return OPJ_FALSE;
2078 }
2079 jp2->color.jp2_cdef->n = (OPJ_UINT16)
2080 image->numcomps; /* cast is valid : image->numcomps [1,16384] */
2081 for (i = 0U; i < color_channels; i++) {
2082 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2083 i; /* cast is valid : image->numcomps [1,16384] */
2084 jp2->color.jp2_cdef->info[i].typ = 0U;
2085 jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
2086 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
2087 }
2088 for (; i < image->numcomps; i++) {
2089 if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
2090 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2091 i; /* cast is valid : image->numcomps [1,16384] */
2092 jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
2093 jp2->color.jp2_cdef->info[i].asoc =
2094 0U; /* Apply alpha channel to the whole image */
2095 } else {
2096 /* Unknown channel */
2097 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2098 i; /* cast is valid : image->numcomps [1,16384] */
2099 jp2->color.jp2_cdef->info[i].typ = 65535U;
2100 jp2->color.jp2_cdef->info[i].asoc = 65535U;
2101 }
2102 }
2103 }
2104
2105 jp2->precedence = 0; /* PRECEDENCE */
2106 jp2->approx = 0; /* APPROX */
2107
2108 jp2->jpip_on = parameters->jpip_on;
2109
2110 return OPJ_TRUE;
2111 }
2112
opj_jp2_encode(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2113 OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
2114 opj_stream_private_t *stream,
2115 opj_event_mgr_t * p_manager)
2116 {
2117 return opj_j2k_encode(jp2->j2k, stream, p_manager);
2118 }
2119
opj_jp2_end_decompress(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2120 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
2121 opj_stream_private_t *cio,
2122 opj_event_mgr_t * p_manager
2123 )
2124 {
2125 /* preconditions */
2126 assert(jp2 != 00);
2127 assert(cio != 00);
2128 assert(p_manager != 00);
2129
2130 /* customization of the end encoding */
2131 if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
2132 return OPJ_FALSE;
2133 }
2134
2135 /* write header */
2136 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
2137 return OPJ_FALSE;
2138 }
2139
2140 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
2141 }
2142
opj_jp2_end_compress(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2143 OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
2144 opj_stream_private_t *cio,
2145 opj_event_mgr_t * p_manager
2146 )
2147 {
2148 /* preconditions */
2149 assert(jp2 != 00);
2150 assert(cio != 00);
2151 assert(p_manager != 00);
2152
2153 /* customization of the end encoding */
2154 if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
2155 return OPJ_FALSE;
2156 }
2157
2158 if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
2159 return OPJ_FALSE;
2160 }
2161
2162 /* write header */
2163 return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
2164 }
2165
opj_jp2_setup_end_header_writing(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2166 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
2167 opj_event_mgr_t * p_manager)
2168 {
2169 /* preconditions */
2170 assert(jp2 != 00);
2171 assert(p_manager != 00);
2172
2173 #ifdef USE_JPIP
2174 if (jp2->jpip_on) {
2175 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2176 (opj_procedure)opj_jpip_write_iptr, p_manager)) {
2177 return OPJ_FALSE;
2178 }
2179 }
2180 #endif
2181 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2182 (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
2183 return OPJ_FALSE;
2184 }
2185 /* DEVELOPER CORNER, add your custom procedures */
2186 #ifdef USE_JPIP
2187 if (jp2->jpip_on) {
2188 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2189 (opj_procedure)opj_jpip_write_cidx, p_manager)) {
2190 return OPJ_FALSE;
2191 }
2192 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2193 (opj_procedure)opj_jpip_write_fidx, p_manager)) {
2194 return OPJ_FALSE;
2195 }
2196 }
2197 #endif
2198 return OPJ_TRUE;
2199 }
2200
opj_jp2_setup_end_header_reading(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2201 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
2202 opj_event_mgr_t * p_manager)
2203 {
2204 /* preconditions */
2205 assert(jp2 != 00);
2206 assert(p_manager != 00);
2207
2208 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2209 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2210 return OPJ_FALSE;
2211 }
2212 /* DEVELOPER CORNER, add your custom procedures */
2213
2214 return OPJ_TRUE;
2215 }
2216
opj_jp2_default_validation(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2217 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
2218 opj_stream_private_t *cio,
2219 opj_event_mgr_t * p_manager
2220 )
2221 {
2222 OPJ_BOOL l_is_valid = OPJ_TRUE;
2223 OPJ_UINT32 i;
2224
2225 /* preconditions */
2226 assert(jp2 != 00);
2227 assert(cio != 00);
2228 assert(p_manager != 00);
2229
2230 OPJ_UNUSED(p_manager);
2231
2232 /* JPEG2000 codec validation */
2233
2234 /* STATE checking */
2235 /* make sure the state is at 0 */
2236 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
2237
2238 /* make sure not reading a jp2h ???? WEIRD */
2239 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
2240
2241 /* POINTER validation */
2242 /* make sure a j2k codec is present */
2243 l_is_valid &= (jp2->j2k != 00);
2244
2245 /* make sure a procedure list is present */
2246 l_is_valid &= (jp2->m_procedure_list != 00);
2247
2248 /* make sure a validation list is present */
2249 l_is_valid &= (jp2->m_validation_list != 00);
2250
2251 /* PARAMETER VALIDATION */
2252 /* number of components */
2253 l_is_valid &= (jp2->numcl > 0);
2254 /* width */
2255 l_is_valid &= (jp2->h > 0);
2256 /* height */
2257 l_is_valid &= (jp2->w > 0);
2258 /* precision */
2259 for (i = 0; i < jp2->numcomps; ++i) {
2260 l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
2261 38U); /* 0 is valid, ignore sign for check */
2262 }
2263
2264 /* METH */
2265 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
2266
2267 /* stream validation */
2268 /* back and forth is needed */
2269 l_is_valid &= opj_stream_has_seek(cio);
2270
2271 return l_is_valid;
2272 }
2273
opj_jp2_read_header_procedure(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2274 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
2275 opj_stream_private_t *stream,
2276 opj_event_mgr_t * p_manager
2277 )
2278 {
2279 opj_jp2_box_t box;
2280 OPJ_UINT32 l_nb_bytes_read;
2281 const opj_jp2_header_handler_t * l_current_handler;
2282 const opj_jp2_header_handler_t * l_current_handler_misplaced;
2283 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
2284 OPJ_UINT32 l_current_data_size;
2285 OPJ_BYTE * l_current_data = 00;
2286
2287 /* preconditions */
2288 assert(stream != 00);
2289 assert(jp2 != 00);
2290 assert(p_manager != 00);
2291
2292 l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
2293
2294 if (l_current_data == 00) {
2295 opj_event_msg(p_manager, EVT_ERROR,
2296 "Not enough memory to handle jpeg2000 file header\n");
2297 return OPJ_FALSE;
2298 }
2299
2300 while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
2301 /* is it the codestream box ? */
2302 if (box.type == JP2_JP2C) {
2303 if (jp2->jp2_state & JP2_STATE_HEADER) {
2304 jp2->jp2_state |= JP2_STATE_CODESTREAM;
2305 opj_free(l_current_data);
2306 return OPJ_TRUE;
2307 } else {
2308 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
2309 opj_free(l_current_data);
2310 return OPJ_FALSE;
2311 }
2312 } else if (box.length == 0) {
2313 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2314 opj_free(l_current_data);
2315 return OPJ_FALSE;
2316 }
2317 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
2318 else if (box.length < l_nb_bytes_read) {
2319 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
2320 box.type);
2321 opj_free(l_current_data);
2322 return OPJ_FALSE;
2323 }
2324
2325 l_current_handler = opj_jp2_find_handler(box.type);
2326 l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
2327 l_current_data_size = box.length - l_nb_bytes_read;
2328
2329 if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
2330 if (l_current_handler == 00) {
2331 opj_event_msg(p_manager, EVT_WARNING,
2332 "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
2333 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2334 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2335 if (jp2->jp2_state & JP2_STATE_HEADER) {
2336 /* read anyway, we already have jp2h */
2337 l_current_handler = l_current_handler_misplaced;
2338 } else {
2339 opj_event_msg(p_manager, EVT_WARNING,
2340 "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
2341 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2342 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2343 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2344 if (opj_stream_skip(stream, l_current_data_size,
2345 p_manager) != l_current_data_size) {
2346 opj_event_msg(p_manager, EVT_ERROR,
2347 "Problem with skipping JPEG2000 box, stream error\n");
2348 opj_free(l_current_data);
2349 return OPJ_FALSE;
2350 }
2351 continue;
2352 }
2353 }
2354 if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
2355 /* do not even try to malloc if we can't read */
2356 opj_event_msg(p_manager, EVT_ERROR,
2357 "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
2358 box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2359 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
2360 (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
2361 opj_free(l_current_data);
2362 return OPJ_FALSE;
2363 }
2364 if (l_current_data_size > l_last_data_size) {
2365 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
2366 l_current_data_size);
2367 if (!new_current_data) {
2368 opj_free(l_current_data);
2369 opj_event_msg(p_manager, EVT_ERROR,
2370 "Not enough memory to handle jpeg2000 box\n");
2371 return OPJ_FALSE;
2372 }
2373 l_current_data = new_current_data;
2374 l_last_data_size = l_current_data_size;
2375 }
2376
2377 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
2378 l_current_data_size, p_manager);
2379 if (l_nb_bytes_read != l_current_data_size) {
2380 opj_event_msg(p_manager, EVT_ERROR,
2381 "Problem with reading JPEG2000 box, stream error\n");
2382 opj_free(l_current_data);
2383 return OPJ_FALSE;
2384 }
2385
2386 if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
2387 p_manager)) {
2388 opj_free(l_current_data);
2389 return OPJ_FALSE;
2390 }
2391 } else {
2392 if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
2393 opj_event_msg(p_manager, EVT_ERROR,
2394 "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
2395 opj_free(l_current_data);
2396 return OPJ_FALSE;
2397 }
2398 if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
2399 opj_event_msg(p_manager, EVT_ERROR,
2400 "Malformed JP2 file format: second box must be file type box\n");
2401 opj_free(l_current_data);
2402 return OPJ_FALSE;
2403 }
2404 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2405 if (opj_stream_skip(stream, l_current_data_size,
2406 p_manager) != l_current_data_size) {
2407 if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
2408 /* If we already read the codestream, do not error out */
2409 /* Needed for data/input/nonregression/issue254.jp2 */
2410 opj_event_msg(p_manager, EVT_WARNING,
2411 "Problem with skipping JPEG2000 box, stream error\n");
2412 opj_free(l_current_data);
2413 return OPJ_TRUE;
2414 } else {
2415 opj_event_msg(p_manager, EVT_ERROR,
2416 "Problem with skipping JPEG2000 box, stream error\n");
2417 opj_free(l_current_data);
2418 return OPJ_FALSE;
2419 }
2420 }
2421 }
2422 }
2423
2424 opj_free(l_current_data);
2425
2426 return OPJ_TRUE;
2427 }
2428
2429 /**
2430 * Executes the given procedures on the given codec.
2431 *
2432 * @param p_procedure_list the list of procedures to execute
2433 * @param jp2 the jpeg2000 file codec to execute the procedures on.
2434 * @param stream the stream to execute the procedures on.
2435 * @param p_manager the user manager.
2436 *
2437 * @return true if all the procedures were successfully executed.
2438 */
opj_jp2_exec(opj_jp2_t * jp2,opj_procedure_list_t * p_procedure_list,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2439 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
2440 opj_procedure_list_t * p_procedure_list,
2441 opj_stream_private_t *stream,
2442 opj_event_mgr_t * p_manager
2443 )
2444
2445 {
2446 OPJ_BOOL(** l_procedure)(opj_jp2_t * jp2, opj_stream_private_t *,
2447 opj_event_mgr_t *) = 00;
2448 OPJ_BOOL l_result = OPJ_TRUE;
2449 OPJ_UINT32 l_nb_proc, i;
2450
2451 /* preconditions */
2452 assert(p_procedure_list != 00);
2453 assert(jp2 != 00);
2454 assert(stream != 00);
2455 assert(p_manager != 00);
2456
2457 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
2458 l_procedure = (OPJ_BOOL(**)(opj_jp2_t * jp2, opj_stream_private_t *,
2459 opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
2460
2461 for (i = 0; i < l_nb_proc; ++i) {
2462 l_result = l_result && (*l_procedure)(jp2, stream, p_manager);
2463 ++l_procedure;
2464 }
2465
2466 /* and clear the procedure list at the end. */
2467 opj_procedure_list_clear(p_procedure_list);
2468 return l_result;
2469 }
2470
opj_jp2_start_compress(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_image_t * p_image,opj_event_mgr_t * p_manager)2471 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
2472 opj_stream_private_t *stream,
2473 opj_image_t * p_image,
2474 opj_event_mgr_t * p_manager
2475 )
2476 {
2477 /* preconditions */
2478 assert(jp2 != 00);
2479 assert(stream != 00);
2480 assert(p_manager != 00);
2481
2482 /* customization of the validation */
2483 if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) {
2484 return OPJ_FALSE;
2485 }
2486
2487 /* validation of the parameters codec */
2488 if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) {
2489 return OPJ_FALSE;
2490 }
2491
2492 /* customization of the encoding */
2493 if (! opj_jp2_setup_header_writing(jp2, p_manager)) {
2494 return OPJ_FALSE;
2495 }
2496
2497 /* write header */
2498 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) {
2499 return OPJ_FALSE;
2500 }
2501
2502 return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager);
2503 }
2504
opj_jp2_find_handler(OPJ_UINT32 p_id)2505 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id)
2506 {
2507 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(
2508 opj_jp2_header_handler_t);
2509
2510 for (i = 0; i < l_handler_size; ++i) {
2511 if (jp2_header[i].id == p_id) {
2512 return &jp2_header[i];
2513 }
2514 }
2515 return NULL;
2516 }
2517
2518 /**
2519 * Finds the image execution function related to the given box id.
2520 *
2521 * @param p_id the id of the handler to fetch.
2522 *
2523 * @return the given handler or 00 if it could not be found.
2524 */
opj_jp2_img_find_handler(OPJ_UINT32 p_id)2525 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
2526 OPJ_UINT32 p_id)
2527 {
2528 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(
2529 opj_jp2_header_handler_t);
2530 for (i = 0; i < l_handler_size; ++i) {
2531 if (jp2_img_header[i].id == p_id) {
2532 return &jp2_img_header[i];
2533 }
2534 }
2535
2536 return NULL;
2537 }
2538
2539 /**
2540 * Reads a jpeg2000 file signature box.
2541 *
2542 * @param p_header_data the data contained in the signature box.
2543 * @param jp2 the jpeg2000 file codec.
2544 * @param p_header_size the size of the data contained in the signature box.
2545 * @param p_manager the user event manager.
2546 *
2547 * @return true if the file signature box is valid.
2548 */
opj_jp2_read_jp(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2549 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2550 OPJ_BYTE * p_header_data,
2551 OPJ_UINT32 p_header_size,
2552 opj_event_mgr_t * p_manager
2553 )
2554
2555 {
2556 OPJ_UINT32 l_magic_number;
2557
2558 /* preconditions */
2559 assert(p_header_data != 00);
2560 assert(jp2 != 00);
2561 assert(p_manager != 00);
2562
2563 if (jp2->jp2_state != JP2_STATE_NONE) {
2564 opj_event_msg(p_manager, EVT_ERROR,
2565 "The signature box must be the first box in the file.\n");
2566 return OPJ_FALSE;
2567 }
2568
2569 /* assure length of data is correct (4 -> magic number) */
2570 if (p_header_size != 4) {
2571 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2572 return OPJ_FALSE;
2573 }
2574
2575 /* rearrange data */
2576 opj_read_bytes(p_header_data, &l_magic_number, 4);
2577 if (l_magic_number != 0x0d0a870a) {
2578 opj_event_msg(p_manager, EVT_ERROR,
2579 "Error with JP Signature : bad magic number\n");
2580 return OPJ_FALSE;
2581 }
2582
2583 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2584
2585 return OPJ_TRUE;
2586 }
2587
2588 /**
2589 * Reads a a FTYP box - File type box
2590 *
2591 * @param p_header_data the data contained in the FTYP box.
2592 * @param jp2 the jpeg2000 file codec.
2593 * @param p_header_size the size of the data contained in the FTYP box.
2594 * @param p_manager the user event manager.
2595 *
2596 * @return true if the FTYP box is valid.
2597 */
opj_jp2_read_ftyp(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2598 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
2599 OPJ_BYTE * p_header_data,
2600 OPJ_UINT32 p_header_size,
2601 opj_event_mgr_t * p_manager
2602 )
2603 {
2604 OPJ_UINT32 i, l_remaining_bytes;
2605
2606 /* preconditions */
2607 assert(p_header_data != 00);
2608 assert(jp2 != 00);
2609 assert(p_manager != 00);
2610
2611 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2612 opj_event_msg(p_manager, EVT_ERROR,
2613 "The ftyp box must be the second box in the file.\n");
2614 return OPJ_FALSE;
2615 }
2616
2617 /* assure length of data is correct */
2618 if (p_header_size < 8) {
2619 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2620 return OPJ_FALSE;
2621 }
2622
2623 opj_read_bytes(p_header_data, &jp2->brand, 4); /* BR */
2624 p_header_data += 4;
2625
2626 opj_read_bytes(p_header_data, &jp2->minversion, 4); /* MinV */
2627 p_header_data += 4;
2628
2629 l_remaining_bytes = p_header_size - 8;
2630
2631 /* the number of remaining bytes should be a multiple of 4 */
2632 if ((l_remaining_bytes & 0x3) != 0) {
2633 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2634 return OPJ_FALSE;
2635 }
2636
2637 /* div by 4 */
2638 jp2->numcl = l_remaining_bytes >> 2;
2639 if (jp2->numcl) {
2640 jp2->cl = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32));
2641 if (jp2->cl == 00) {
2642 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2643 return OPJ_FALSE;
2644 }
2645 }
2646
2647 for (i = 0; i < jp2->numcl; ++i) {
2648 opj_read_bytes(p_header_data, &jp2->cl[i], 4); /* CLi */
2649 p_header_data += 4;
2650 }
2651
2652 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2653
2654 return OPJ_TRUE;
2655 }
2656
opj_jp2_skip_jp2c(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2657 static OPJ_BOOL opj_jp2_skip_jp2c(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->j2k_codestream_offset = opj_stream_tell(stream);
2667
2668 if (opj_stream_skip(stream, 8, p_manager) != 8) {
2669 return OPJ_FALSE;
2670 }
2671
2672 return OPJ_TRUE;
2673 }
2674
opj_jpip_skip_iptr(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2675 static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2,
2676 opj_stream_private_t *stream,
2677 opj_event_mgr_t * p_manager)
2678 {
2679 /* preconditions */
2680 assert(jp2 != 00);
2681 assert(stream != 00);
2682 assert(p_manager != 00);
2683
2684 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2685
2686 if (opj_stream_skip(stream, 24, p_manager) != 24) {
2687 return OPJ_FALSE;
2688 }
2689
2690 return OPJ_TRUE;
2691 }
2692
2693 /**
2694 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2695 *
2696 * @param p_header_data the data contained in the file header box.
2697 * @param jp2 the jpeg2000 file codec.
2698 * @param p_header_size the size of the data contained in the file header box.
2699 * @param p_manager the user event manager.
2700 *
2701 * @return true if the JP2 Header box was successfully recognized.
2702 */
opj_jp2_read_jp2h(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2703 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
2704 OPJ_BYTE *p_header_data,
2705 OPJ_UINT32 p_header_size,
2706 opj_event_mgr_t * p_manager
2707 )
2708 {
2709 OPJ_UINT32 l_box_size = 0, l_current_data_size = 0;
2710 opj_jp2_box_t box;
2711 const opj_jp2_header_handler_t * l_current_handler;
2712 OPJ_BOOL l_has_ihdr = 0;
2713
2714 /* preconditions */
2715 assert(p_header_data != 00);
2716 assert(jp2 != 00);
2717 assert(p_manager != 00);
2718
2719 /* make sure the box is well placed */
2720 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE) {
2721 opj_event_msg(p_manager, EVT_ERROR,
2722 "The box must be the first box in the file.\n");
2723 return OPJ_FALSE;
2724 }
2725
2726 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2727
2728 /* iterate while remaining data */
2729 while (p_header_size > 0) {
2730
2731 if (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size,
2732 p_manager)) {
2733 opj_event_msg(p_manager, EVT_ERROR,
2734 "Stream error while reading JP2 Header box\n");
2735 return OPJ_FALSE;
2736 }
2737
2738 if (box.length > p_header_size) {
2739 opj_event_msg(p_manager, EVT_ERROR,
2740 "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2741 return OPJ_FALSE;
2742 }
2743
2744 l_current_handler = opj_jp2_img_find_handler(box.type);
2745 l_current_data_size = box.length - l_box_size;
2746 p_header_data += l_box_size;
2747
2748 if (l_current_handler != 00) {
2749 if (! l_current_handler->handler(jp2, p_header_data, l_current_data_size,
2750 p_manager)) {
2751 return OPJ_FALSE;
2752 }
2753 } else {
2754 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2755 }
2756
2757 if (box.type == JP2_IHDR) {
2758 l_has_ihdr = 1;
2759 }
2760
2761 p_header_data += l_current_data_size;
2762 p_header_size -= box.length;
2763 }
2764
2765 if (l_has_ihdr == 0) {
2766 opj_event_msg(p_manager, EVT_ERROR,
2767 "Stream error while reading JP2 Header box: no 'ihdr' box.\n");
2768 return OPJ_FALSE;
2769 }
2770
2771 jp2->jp2_state |= JP2_STATE_HEADER;
2772 jp2->has_jp2h = 1;
2773
2774 return OPJ_TRUE;
2775 }
2776
opj_jp2_read_boxhdr_char(opj_jp2_box_t * box,OPJ_BYTE * p_data,OPJ_UINT32 * p_number_bytes_read,OPJ_UINT32 p_box_max_size,opj_event_mgr_t * p_manager)2777 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
2778 OPJ_BYTE * p_data,
2779 OPJ_UINT32 * p_number_bytes_read,
2780 OPJ_UINT32 p_box_max_size,
2781 opj_event_mgr_t * p_manager
2782 )
2783 {
2784 OPJ_UINT32 l_value;
2785
2786 /* preconditions */
2787 assert(p_data != 00);
2788 assert(box != 00);
2789 assert(p_number_bytes_read != 00);
2790 assert(p_manager != 00);
2791
2792 if (p_box_max_size < 8) {
2793 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2794 return OPJ_FALSE;
2795 }
2796
2797 /* process read data */
2798 opj_read_bytes(p_data, &l_value, 4);
2799 p_data += 4;
2800 box->length = (OPJ_UINT32)(l_value);
2801
2802 opj_read_bytes(p_data, &l_value, 4);
2803 p_data += 4;
2804 box->type = (OPJ_UINT32)(l_value);
2805
2806 *p_number_bytes_read = 8;
2807
2808 /* do we have a "special very large box ?" */
2809 /* read then the XLBox */
2810 if (box->length == 1) {
2811 OPJ_UINT32 l_xl_part_size;
2812
2813 if (p_box_max_size < 16) {
2814 opj_event_msg(p_manager, EVT_ERROR,
2815 "Cannot handle XL box of less than 16 bytes\n");
2816 return OPJ_FALSE;
2817 }
2818
2819 opj_read_bytes(p_data, &l_xl_part_size, 4);
2820 p_data += 4;
2821 *p_number_bytes_read += 4;
2822
2823 if (l_xl_part_size != 0) {
2824 opj_event_msg(p_manager, EVT_ERROR,
2825 "Cannot handle box sizes higher than 2^32\n");
2826 return OPJ_FALSE;
2827 }
2828
2829 opj_read_bytes(p_data, &l_value, 4);
2830 *p_number_bytes_read += 4;
2831 box->length = (OPJ_UINT32)(l_value);
2832
2833 if (box->length == 0) {
2834 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2835 return OPJ_FALSE;
2836 }
2837 } else if (box->length == 0) {
2838 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2839 return OPJ_FALSE;
2840 }
2841 if (box->length < *p_number_bytes_read) {
2842 opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n");
2843 return OPJ_FALSE;
2844 }
2845 return OPJ_TRUE;
2846 }
2847
opj_jp2_read_header(opj_stream_private_t * p_stream,opj_jp2_t * jp2,opj_image_t ** p_image,opj_event_mgr_t * p_manager)2848 OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream,
2849 opj_jp2_t *jp2,
2850 opj_image_t ** p_image,
2851 opj_event_mgr_t * p_manager
2852 )
2853 {
2854 /* preconditions */
2855 assert(jp2 != 00);
2856 assert(p_stream != 00);
2857 assert(p_manager != 00);
2858
2859 /* customization of the validation */
2860 if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) {
2861 return OPJ_FALSE;
2862 }
2863
2864 /* customization of the encoding */
2865 if (! opj_jp2_setup_header_reading(jp2, p_manager)) {
2866 return OPJ_FALSE;
2867 }
2868
2869 /* validation of the parameters codec */
2870 if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) {
2871 return OPJ_FALSE;
2872 }
2873
2874 /* read header */
2875 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) {
2876 return OPJ_FALSE;
2877 }
2878 if (jp2->has_jp2h == 0) {
2879 opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n");
2880 return OPJ_FALSE;
2881 }
2882 if (jp2->has_ihdr == 0) {
2883 opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n");
2884 return OPJ_FALSE;
2885 }
2886
2887 return opj_j2k_read_header(p_stream,
2888 jp2->j2k,
2889 p_image,
2890 p_manager);
2891 }
2892
opj_jp2_setup_encoding_validation(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2893 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
2894 opj_event_mgr_t * p_manager)
2895 {
2896 /* preconditions */
2897 assert(jp2 != 00);
2898 assert(p_manager != 00);
2899
2900 if (! opj_procedure_list_add_procedure(jp2->m_validation_list,
2901 (opj_procedure)opj_jp2_default_validation, p_manager)) {
2902 return OPJ_FALSE;
2903 }
2904 /* DEVELOPER CORNER, add your custom validation procedure */
2905
2906 return OPJ_TRUE;
2907 }
2908
opj_jp2_setup_decoding_validation(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2909 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
2910 opj_event_mgr_t * p_manager)
2911 {
2912 /* preconditions */
2913 assert(jp2 != 00);
2914 assert(p_manager != 00);
2915
2916 OPJ_UNUSED(jp2);
2917 OPJ_UNUSED(p_manager);
2918
2919 /* DEVELOPER CORNER, add your custom validation procedure */
2920
2921 return OPJ_TRUE;
2922 }
2923
opj_jp2_setup_header_writing(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2924 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
2925 opj_event_mgr_t * p_manager)
2926 {
2927 /* preconditions */
2928 assert(jp2 != 00);
2929 assert(p_manager != 00);
2930
2931 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2932 (opj_procedure)opj_jp2_write_jp, p_manager)) {
2933 return OPJ_FALSE;
2934 }
2935 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2936 (opj_procedure)opj_jp2_write_ftyp, p_manager)) {
2937 return OPJ_FALSE;
2938 }
2939 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2940 (opj_procedure)opj_jp2_write_jp2h, p_manager)) {
2941 return OPJ_FALSE;
2942 }
2943 if (jp2->jpip_on) {
2944 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2945 (opj_procedure)opj_jpip_skip_iptr, p_manager)) {
2946 return OPJ_FALSE;
2947 }
2948 }
2949 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2950 (opj_procedure)opj_jp2_skip_jp2c, p_manager)) {
2951 return OPJ_FALSE;
2952 }
2953
2954 /* DEVELOPER CORNER, insert your custom procedures */
2955
2956 return OPJ_TRUE;
2957 }
2958
opj_jp2_setup_header_reading(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2959 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
2960 opj_event_mgr_t * p_manager)
2961 {
2962 /* preconditions */
2963 assert(jp2 != 00);
2964 assert(p_manager != 00);
2965
2966 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2967 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2968 return OPJ_FALSE;
2969 }
2970
2971 /* DEVELOPER CORNER, add your custom procedures */
2972
2973 return OPJ_TRUE;
2974 }
2975
opj_jp2_read_tile_header(opj_jp2_t * p_jp2,OPJ_UINT32 * p_tile_index,OPJ_UINT32 * p_data_size,OPJ_INT32 * p_tile_x0,OPJ_INT32 * p_tile_y0,OPJ_INT32 * p_tile_x1,OPJ_INT32 * p_tile_y1,OPJ_UINT32 * p_nb_comps,OPJ_BOOL * p_go_on,opj_stream_private_t * p_stream,opj_event_mgr_t * p_manager)2976 OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_t * p_jp2,
2977 OPJ_UINT32 * p_tile_index,
2978 OPJ_UINT32 * p_data_size,
2979 OPJ_INT32 * p_tile_x0,
2980 OPJ_INT32 * p_tile_y0,
2981 OPJ_INT32 * p_tile_x1,
2982 OPJ_INT32 * p_tile_y1,
2983 OPJ_UINT32 * p_nb_comps,
2984 OPJ_BOOL * p_go_on,
2985 opj_stream_private_t *p_stream,
2986 opj_event_mgr_t * p_manager
2987 )
2988 {
2989 return opj_j2k_read_tile_header(p_jp2->j2k,
2990 p_tile_index,
2991 p_data_size,
2992 p_tile_x0, p_tile_y0,
2993 p_tile_x1, p_tile_y1,
2994 p_nb_comps,
2995 p_go_on,
2996 p_stream,
2997 p_manager);
2998 }
2999
opj_jp2_write_tile(opj_jp2_t * p_jp2,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,opj_stream_private_t * p_stream,opj_event_mgr_t * p_manager)3000 OPJ_BOOL opj_jp2_write_tile(opj_jp2_t *p_jp2,
3001 OPJ_UINT32 p_tile_index,
3002 OPJ_BYTE * p_data,
3003 OPJ_UINT32 p_data_size,
3004 opj_stream_private_t *p_stream,
3005 opj_event_mgr_t * p_manager
3006 )
3007
3008 {
3009 return opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3010 p_stream, p_manager);
3011 }
3012
opj_jp2_decode_tile(opj_jp2_t * p_jp2,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,opj_stream_private_t * p_stream,opj_event_mgr_t * p_manager)3013 OPJ_BOOL opj_jp2_decode_tile(opj_jp2_t * p_jp2,
3014 OPJ_UINT32 p_tile_index,
3015 OPJ_BYTE * p_data,
3016 OPJ_UINT32 p_data_size,
3017 opj_stream_private_t *p_stream,
3018 opj_event_mgr_t * p_manager
3019 )
3020 {
3021 return opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3022 p_stream, p_manager);
3023 }
3024
opj_jp2_destroy(opj_jp2_t * jp2)3025 void opj_jp2_destroy(opj_jp2_t *jp2)
3026 {
3027 if (jp2) {
3028 /* destroy the J2K codec */
3029 opj_j2k_destroy(jp2->j2k);
3030 jp2->j2k = 00;
3031
3032 if (jp2->comps) {
3033 opj_free(jp2->comps);
3034 jp2->comps = 00;
3035 }
3036
3037 if (jp2->cl) {
3038 opj_free(jp2->cl);
3039 jp2->cl = 00;
3040 }
3041
3042 if (jp2->color.icc_profile_buf) {
3043 opj_free(jp2->color.icc_profile_buf);
3044 jp2->color.icc_profile_buf = 00;
3045 }
3046
3047 if (jp2->color.jp2_cdef) {
3048 if (jp2->color.jp2_cdef->info) {
3049 opj_free(jp2->color.jp2_cdef->info);
3050 jp2->color.jp2_cdef->info = NULL;
3051 }
3052
3053 opj_free(jp2->color.jp2_cdef);
3054 jp2->color.jp2_cdef = 00;
3055 }
3056
3057 if (jp2->color.jp2_pclr) {
3058 if (jp2->color.jp2_pclr->cmap) {
3059 opj_free(jp2->color.jp2_pclr->cmap);
3060 jp2->color.jp2_pclr->cmap = NULL;
3061 }
3062 if (jp2->color.jp2_pclr->channel_sign) {
3063 opj_free(jp2->color.jp2_pclr->channel_sign);
3064 jp2->color.jp2_pclr->channel_sign = NULL;
3065 }
3066 if (jp2->color.jp2_pclr->channel_size) {
3067 opj_free(jp2->color.jp2_pclr->channel_size);
3068 jp2->color.jp2_pclr->channel_size = NULL;
3069 }
3070 if (jp2->color.jp2_pclr->entries) {
3071 opj_free(jp2->color.jp2_pclr->entries);
3072 jp2->color.jp2_pclr->entries = NULL;
3073 }
3074
3075 opj_free(jp2->color.jp2_pclr);
3076 jp2->color.jp2_pclr = 00;
3077 }
3078
3079 if (jp2->m_validation_list) {
3080 opj_procedure_list_destroy(jp2->m_validation_list);
3081 jp2->m_validation_list = 00;
3082 }
3083
3084 if (jp2->m_procedure_list) {
3085 opj_procedure_list_destroy(jp2->m_procedure_list);
3086 jp2->m_procedure_list = 00;
3087 }
3088
3089 opj_free(jp2);
3090 }
3091 }
3092
opj_jp2_set_decoded_components(opj_jp2_t * p_jp2,OPJ_UINT32 numcomps,const OPJ_UINT32 * comps_indices,opj_event_mgr_t * p_manager)3093 OPJ_BOOL opj_jp2_set_decoded_components(opj_jp2_t *p_jp2,
3094 OPJ_UINT32 numcomps,
3095 const OPJ_UINT32* comps_indices,
3096 opj_event_mgr_t * p_manager)
3097 {
3098 return opj_j2k_set_decoded_components(p_jp2->j2k,
3099 numcomps, comps_indices,
3100 p_manager);
3101 }
3102
opj_jp2_set_decode_area(opj_jp2_t * p_jp2,opj_image_t * p_image,OPJ_INT32 p_start_x,OPJ_INT32 p_start_y,OPJ_INT32 p_end_x,OPJ_INT32 p_end_y,opj_event_mgr_t * p_manager)3103 OPJ_BOOL opj_jp2_set_decode_area(opj_jp2_t *p_jp2,
3104 opj_image_t* p_image,
3105 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
3106 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
3107 opj_event_mgr_t * p_manager
3108 )
3109 {
3110 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y,
3111 p_end_x, p_end_y, p_manager);
3112 }
3113
opj_jp2_get_tile(opj_jp2_t * p_jp2,opj_stream_private_t * p_stream,opj_image_t * p_image,opj_event_mgr_t * p_manager,OPJ_UINT32 tile_index)3114 OPJ_BOOL opj_jp2_get_tile(opj_jp2_t *p_jp2,
3115 opj_stream_private_t *p_stream,
3116 opj_image_t* p_image,
3117 opj_event_mgr_t * p_manager,
3118 OPJ_UINT32 tile_index
3119 )
3120 {
3121 if (!p_image) {
3122 return OPJ_FALSE;
3123 }
3124
3125 opj_event_msg(p_manager, EVT_WARNING,
3126 "JP2 box which are after the codestream will not be read by this function.\n");
3127
3128 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index)) {
3129 opj_event_msg(p_manager, EVT_ERROR,
3130 "Failed to decode the codestream in the JP2 file\n");
3131 return OPJ_FALSE;
3132 }
3133
3134 if (p_jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
3135 /* Bypass all JP2 component transforms */
3136 return OPJ_TRUE;
3137 }
3138
3139 if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
3140 return OPJ_FALSE;
3141 }
3142
3143 /* Set Image Color Space */
3144 if (p_jp2->enumcs == 16) {
3145 p_image->color_space = OPJ_CLRSPC_SRGB;
3146 } else if (p_jp2->enumcs == 17) {
3147 p_image->color_space = OPJ_CLRSPC_GRAY;
3148 } else if (p_jp2->enumcs == 18) {
3149 p_image->color_space = OPJ_CLRSPC_SYCC;
3150 } else if (p_jp2->enumcs == 24) {
3151 p_image->color_space = OPJ_CLRSPC_EYCC;
3152 } else if (p_jp2->enumcs == 12) {
3153 p_image->color_space = OPJ_CLRSPC_CMYK;
3154 } else {
3155 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
3156 }
3157
3158 if (p_jp2->color.jp2_pclr) {
3159 /* Part 1, I.5.3.4: Either both or none : */
3160 if (!p_jp2->color.jp2_pclr->cmap) {
3161 opj_jp2_free_pclr(&(p_jp2->color));
3162 } else {
3163 if (!opj_jp2_apply_pclr(p_image, &(p_jp2->color), p_manager)) {
3164 return OPJ_FALSE;
3165 }
3166 }
3167 }
3168
3169 /* Apply the color space if needed */
3170 if (p_jp2->color.jp2_cdef) {
3171 opj_jp2_apply_cdef(p_image, &(p_jp2->color), p_manager);
3172 }
3173
3174 if (p_jp2->color.icc_profile_buf) {
3175 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
3176 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
3177 p_jp2->color.icc_profile_buf = NULL;
3178 }
3179
3180 return OPJ_TRUE;
3181 }
3182
3183 /* ----------------------------------------------------------------------- */
3184 /* JP2 encoder interface */
3185 /* ----------------------------------------------------------------------- */
3186
opj_jp2_create(OPJ_BOOL p_is_decoder)3187 opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
3188 {
3189 opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1, sizeof(opj_jp2_t));
3190 if (jp2) {
3191
3192 /* create the J2K codec */
3193 if (! p_is_decoder) {
3194 jp2->j2k = opj_j2k_create_compress();
3195 } else {
3196 jp2->j2k = opj_j2k_create_decompress();
3197 }
3198
3199 if (jp2->j2k == 00) {
3200 opj_jp2_destroy(jp2);
3201 return 00;
3202 }
3203
3204 /* Color structure */
3205 jp2->color.icc_profile_buf = NULL;
3206 jp2->color.icc_profile_len = 0;
3207 jp2->color.jp2_cdef = NULL;
3208 jp2->color.jp2_pclr = NULL;
3209 jp2->color.jp2_has_colr = 0;
3210
3211 /* validation list creation */
3212 jp2->m_validation_list = opj_procedure_list_create();
3213 if (! jp2->m_validation_list) {
3214 opj_jp2_destroy(jp2);
3215 return 00;
3216 }
3217
3218 /* execution list creation */
3219 jp2->m_procedure_list = opj_procedure_list_create();
3220 if (! jp2->m_procedure_list) {
3221 opj_jp2_destroy(jp2);
3222 return 00;
3223 }
3224 }
3225
3226 return jp2;
3227 }
3228
jp2_dump(opj_jp2_t * p_jp2,OPJ_INT32 flag,FILE * out_stream)3229 void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
3230 {
3231 /* preconditions */
3232 assert(p_jp2 != 00);
3233
3234 j2k_dump(p_jp2->j2k,
3235 flag,
3236 out_stream);
3237 }
3238
jp2_get_cstr_index(opj_jp2_t * p_jp2)3239 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
3240 {
3241 return j2k_get_cstr_index(p_jp2->j2k);
3242 }
3243
jp2_get_cstr_info(opj_jp2_t * p_jp2)3244 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
3245 {
3246 return j2k_get_cstr_info(p_jp2->j2k);
3247 }
3248
opj_jp2_set_decoded_resolution_factor(opj_jp2_t * p_jp2,OPJ_UINT32 res_factor,opj_event_mgr_t * p_manager)3249 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
3250 OPJ_UINT32 res_factor,
3251 opj_event_mgr_t * p_manager)
3252 {
3253 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
3254 }
3255
3256 /* JPIP specific */
3257
3258 #ifdef USE_JPIP
opj_jpip_write_iptr(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)3259 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
3260 opj_stream_private_t *cio,
3261 opj_event_mgr_t * p_manager)
3262 {
3263 OPJ_OFF_T j2k_codestream_exit;
3264 OPJ_BYTE l_data_header [24];
3265
3266 /* preconditions */
3267 assert(jp2 != 00);
3268 assert(cio != 00);
3269 assert(p_manager != 00);
3270 assert(opj_stream_has_seek(cio));
3271
3272 j2k_codestream_exit = opj_stream_tell(cio);
3273 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3274 opj_write_bytes(l_data_header + 4, JPIP_IPTR,
3275 4); /* IPTR */
3276 #if 0
3277 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3278 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3279 #else
3280 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3281 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3282 #endif
3283
3284 if (! opj_stream_seek(cio, jp2->jpip_iptr_offset, p_manager)) {
3285 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3286 return OPJ_FALSE;
3287 }
3288
3289 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3290 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3291 return OPJ_FALSE;
3292 }
3293
3294 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3295 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3296 return OPJ_FALSE;
3297 }
3298
3299 return OPJ_TRUE;
3300 }
3301
opj_jpip_write_fidx(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)3302 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
3303 opj_stream_private_t *cio,
3304 opj_event_mgr_t * p_manager)
3305 {
3306 OPJ_OFF_T j2k_codestream_exit;
3307 OPJ_BYTE l_data_header [24];
3308
3309 OPJ_UNUSED(jp2);
3310
3311 /* preconditions */
3312 assert(jp2 != 00);
3313 assert(cio != 00);
3314 assert(p_manager != 00);
3315 assert(opj_stream_has_seek(cio));
3316
3317 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3318 opj_write_bytes(l_data_header + 4, JPIP_FIDX,
3319 4); /* IPTR */
3320 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3321 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3322
3323 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3324 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3325 return OPJ_FALSE;
3326 }
3327
3328 j2k_codestream_exit = opj_stream_tell(cio);
3329 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3330 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3331 return OPJ_FALSE;
3332 }
3333
3334 return OPJ_TRUE;
3335 }
3336
opj_jpip_write_cidx(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)3337 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
3338 opj_stream_private_t *cio,
3339 opj_event_mgr_t * p_manager)
3340 {
3341 OPJ_OFF_T j2k_codestream_exit;
3342 OPJ_BYTE l_data_header [24];
3343
3344 OPJ_UNUSED(jp2);
3345
3346 /* preconditions */
3347 assert(jp2 != 00);
3348 assert(cio != 00);
3349 assert(p_manager != 00);
3350 assert(opj_stream_has_seek(cio));
3351
3352 j2k_codestream_exit = opj_stream_tell(cio);
3353 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3354 opj_write_bytes(l_data_header + 4, JPIP_CIDX,
3355 4); /* IPTR */
3356 #if 0
3357 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3358 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3359 #else
3360 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3361 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3362 #endif
3363
3364 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3365 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3366 return OPJ_FALSE;
3367 }
3368
3369 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3370 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3371 return OPJ_FALSE;
3372 }
3373
3374 j2k_codestream_exit = opj_stream_tell(cio);
3375 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3376 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3377 return OPJ_FALSE;
3378 }
3379
3380 return OPJ_TRUE;
3381 }
3382
3383 #if 0
3384 static void write_prxy(int offset_jp2c, int length_jp2c, int offset_idx,
3385 int length_idx, opj_stream_private_t *cio,
3386 opj_event_mgr_t * p_manager)
3387 {
3388 OPJ_BYTE l_data_header [8];
3389 OPJ_OFF_T len, lenp;
3390
3391 lenp = opj_stream_tell(cio);
3392 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
3393 opj_write_bytes(l_data_header, JPIP_PRXY, 4); /* IPTR */
3394 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3395
3396 opj_write_bytes(l_data_header, offset_jp2c, 8); /* OOFF */
3397 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3398 opj_write_bytes(l_data_header, length_jp2c, 4); /* OBH part 1 */
3399 opj_write_bytes(l_data_header + 4, JP2_JP2C, 4); /* OBH part 2 */
3400 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3401
3402 opj_write_bytes(l_data_header, 1, 1); /* NI */
3403 opj_stream_write_data(cio, l_data_header, 1, p_manager);
3404
3405 opj_write_bytes(l_data_header, offset_idx, 8); /* IOFF */
3406 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3407 opj_write_bytes(l_data_header, length_idx, 4); /* IBH part 1 */
3408 opj_write_bytes(l_data_header + 4, JPIP_CIDX, 4); /* IBH part 2 */
3409 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3410
3411 len = opj_stream_tell(cio) - lenp;
3412 opj_stream_skip(cio, lenp, p_manager);
3413 opj_write_bytes(l_data_header, len, 4); /* L */
3414 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3415 opj_stream_seek(cio, lenp + len, p_manager);
3416 }
3417 #endif
3418
3419
3420 #if 0
3421 static int write_fidx(int offset_jp2c, int length_jp2c, int offset_idx,
3422 int length_idx, opj_stream_private_t *cio,
3423 opj_event_mgr_t * p_manager)
3424 {
3425 OPJ_BYTE l_data_header [4];
3426 OPJ_OFF_T len, lenp;
3427
3428 lenp = opj_stream_tell(cio);
3429 opj_stream_skip(cio, 4, p_manager);
3430 opj_write_bytes(l_data_header, JPIP_FIDX, 4); /* FIDX */
3431 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3432
3433 write_prxy(offset_jp2c, length_jp2c, offset_idx, length_idx, cio, p_manager);
3434
3435 len = opj_stream_tell(cio) - lenp;
3436 opj_stream_skip(cio, lenp, p_manager);
3437 opj_write_bytes(l_data_header, len, 4); /* L */
3438 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3439 opj_stream_seek(cio, lenp + len, p_manager);
3440
3441 return len;
3442 }
3443 #endif
3444 #endif /* USE_JPIP */
3445