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 */
64static 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*/
77static 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*/
88static 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 */
101static 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
106static 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
111static 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 */
122static 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*/
133static 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 */
145static 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 */
159static 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
164static 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*/
178static 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 */
192static 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*/
205static 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*/
216static 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 */
226static 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 */
236static 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 */
251static 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 */
265static 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/**
270Apply 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*/
276static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
277 opj_jp2_color_t *color,
278 opj_event_mgr_t * p_manager);
279
280static 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*/
292static 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
308static 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*/
323static 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 */
336static 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 */
343static 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 */
355static 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 */
369static 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*/
384static 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 */
393static 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 */
399static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
400 opj_event_mgr_t * p_manager);
401
402static 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 */
413static 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 */
423static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id);
424
425static 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
431static 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*/
452static 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 */
462static 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 */
469static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
470 opj_event_mgr_t * p_manager);
471
472/* ----------------------------------------------------------------------- */
473static 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
537static 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
561static 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 jp2->comps = (opj_jp2_comps_t*) opj_calloc(jp2->numcomps,
597 sizeof(opj_jp2_comps_t));
598 if (jp2->comps == 0) {
599 opj_event_msg(p_manager, EVT_ERROR,
600 "Not enough memory to handle image header (ihdr)\n");
601 return OPJ_FALSE;
602 }
603
604 opj_read_bytes(p_image_header_data, &(jp2->bpc), 1); /* BPC */
605 ++ p_image_header_data;
606
607 opj_read_bytes(p_image_header_data, &(jp2->C), 1); /* C */
608 ++ p_image_header_data;
609
610 /* Should be equal to 7 cf. chapter about image header box of the norm */
611 if (jp2->C != 7) {
612 opj_event_msg(p_manager, EVT_INFO,
613 "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n",
614 jp2->C);
615 }
616
617 opj_read_bytes(p_image_header_data, &(jp2->UnkC), 1); /* UnkC */
618 ++ p_image_header_data;
619 opj_read_bytes(p_image_header_data, &(jp2->IPR), 1); /* IPR */
620 ++ p_image_header_data;
621
622 jp2->j2k->m_cp.allow_different_bit_depth_sign = (jp2->bpc == 255);
623 jp2->j2k->ihdr_w = jp2->w;
624 jp2->j2k->ihdr_h = jp2->h;
625 jp2->has_ihdr = 1;
626
627 return OPJ_TRUE;
628}
629
630static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
631 OPJ_UINT32 * p_nb_bytes_written
632 )
633{
634 OPJ_BYTE * l_ihdr_data, * l_current_ihdr_ptr;
635
636 /* preconditions */
637 assert(jp2 != 00);
638 assert(p_nb_bytes_written != 00);
639
640 /* default image header is 22 bytes wide */
641 l_ihdr_data = (OPJ_BYTE *) opj_calloc(1, 22);
642 if (l_ihdr_data == 00) {
643 return 00;
644 }
645
646 l_current_ihdr_ptr = l_ihdr_data;
647
648 opj_write_bytes(l_current_ihdr_ptr, 22, 4); /* write box size */
649 l_current_ihdr_ptr += 4;
650
651 opj_write_bytes(l_current_ihdr_ptr, JP2_IHDR, 4); /* IHDR */
652 l_current_ihdr_ptr += 4;
653
654 opj_write_bytes(l_current_ihdr_ptr, jp2->h, 4); /* HEIGHT */
655 l_current_ihdr_ptr += 4;
656
657 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
658 l_current_ihdr_ptr += 4;
659
660 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
661 l_current_ihdr_ptr += 2;
662
663 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
664 ++l_current_ihdr_ptr;
665
666 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
667 ++l_current_ihdr_ptr;
668
669 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC,
670 1); /* UnkC, colorspace unknown */
671 ++l_current_ihdr_ptr;
672
673 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR,
674 1); /* IPR, no intellectual property */
675 ++l_current_ihdr_ptr;
676
677 *p_nb_bytes_written = 22;
678
679 return l_ihdr_data;
680}
681
682static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
683 OPJ_UINT32 * p_nb_bytes_written
684 )
685{
686 OPJ_UINT32 i;
687 /* room for 8 bytes for box and 1 byte for each component */
688 OPJ_UINT32 l_bpcc_size;
689 OPJ_BYTE * l_bpcc_data, * l_current_bpcc_ptr;
690
691 /* preconditions */
692 assert(jp2 != 00);
693 assert(p_nb_bytes_written != 00);
694 l_bpcc_size = 8 + jp2->numcomps;
695
696 l_bpcc_data = (OPJ_BYTE *) opj_calloc(1, l_bpcc_size);
697 if (l_bpcc_data == 00) {
698 return 00;
699 }
700
701 l_current_bpcc_ptr = l_bpcc_data;
702
703 opj_write_bytes(l_current_bpcc_ptr, l_bpcc_size,
704 4); /* write box size */
705 l_current_bpcc_ptr += 4;
706
707 opj_write_bytes(l_current_bpcc_ptr, JP2_BPCC, 4); /* BPCC */
708 l_current_bpcc_ptr += 4;
709
710 for (i = 0; i < jp2->numcomps; ++i) {
711 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc,
712 1); /* write each component information */
713 ++l_current_bpcc_ptr;
714 }
715
716 *p_nb_bytes_written = l_bpcc_size;
717
718 return l_bpcc_data;
719}
720
721static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
722 OPJ_BYTE * p_bpc_header_data,
723 OPJ_UINT32 p_bpc_header_size,
724 opj_event_mgr_t * p_manager
725 )
726{
727 OPJ_UINT32 i;
728
729 /* preconditions */
730 assert(p_bpc_header_data != 00);
731 assert(jp2 != 00);
732 assert(p_manager != 00);
733
734
735 if (jp2->bpc != 255) {
736 opj_event_msg(p_manager, EVT_WARNING,
737 "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n",
738 jp2->bpc);
739 }
740
741 /* and length is relevant */
742 if (p_bpc_header_size != jp2->numcomps) {
743 opj_event_msg(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
744 return OPJ_FALSE;
745 }
746
747 /* read info for each component */
748 for (i = 0; i < jp2->numcomps; ++i) {
749 opj_read_bytes(p_bpc_header_data, &jp2->comps[i].bpcc,
750 1); /* read each BPCC component */
751 ++p_bpc_header_data;
752 }
753
754 return OPJ_TRUE;
755}
756static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
757 OPJ_UINT32 * p_nb_bytes_written)
758{
759 /* room for 8 bytes for box, 2 for n */
760 OPJ_UINT32 l_cdef_size = 10;
761 OPJ_BYTE * l_cdef_data, * l_current_cdef_ptr;
762 OPJ_UINT32 l_value;
763 OPJ_UINT16 i;
764
765 /* preconditions */
766 assert(jp2 != 00);
767 assert(p_nb_bytes_written != 00);
768 assert(jp2->color.jp2_cdef != 00);
769 assert(jp2->color.jp2_cdef->info != 00);
770 assert(jp2->color.jp2_cdef->n > 0U);
771
772 l_cdef_size += 6U * jp2->color.jp2_cdef->n;
773
774 l_cdef_data = (OPJ_BYTE *) opj_malloc(l_cdef_size);
775 if (l_cdef_data == 00) {
776 return 00;
777 }
778
779 l_current_cdef_ptr = l_cdef_data;
780
781 opj_write_bytes(l_current_cdef_ptr, l_cdef_size, 4); /* write box size */
782 l_current_cdef_ptr += 4;
783
784 opj_write_bytes(l_current_cdef_ptr, JP2_CDEF, 4); /* BPCC */
785 l_current_cdef_ptr += 4;
786
787 l_value = jp2->color.jp2_cdef->n;
788 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* N */
789 l_current_cdef_ptr += 2;
790
791 for (i = 0U; i < jp2->color.jp2_cdef->n; ++i) {
792 l_value = jp2->color.jp2_cdef->info[i].cn;
793 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Cni */
794 l_current_cdef_ptr += 2;
795 l_value = jp2->color.jp2_cdef->info[i].typ;
796 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Typi */
797 l_current_cdef_ptr += 2;
798 l_value = jp2->color.jp2_cdef->info[i].asoc;
799 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Asoci */
800 l_current_cdef_ptr += 2;
801 }
802 *p_nb_bytes_written = l_cdef_size;
803
804 return l_cdef_data;
805}
806
807static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
808 OPJ_UINT32 * p_nb_bytes_written
809 )
810{
811 /* room for 8 bytes for box 3 for common data and variable upon profile*/
812 OPJ_UINT32 l_colr_size = 11;
813 OPJ_BYTE * l_colr_data, * l_current_colr_ptr;
814
815 /* preconditions */
816 assert(jp2 != 00);
817 assert(p_nb_bytes_written != 00);
818 assert(jp2->meth == 1 || jp2->meth == 2);
819
820 switch (jp2->meth) {
821 case 1 :
822 l_colr_size += 4; /* EnumCS */
823 break;
824 case 2 :
825 assert(jp2->color.icc_profile_len); /* ICC profile */
826 l_colr_size += jp2->color.icc_profile_len;
827 break;
828 default :
829 return 00;
830 }
831
832 l_colr_data = (OPJ_BYTE *) opj_calloc(1, l_colr_size);
833 if (l_colr_data == 00) {
834 return 00;
835 }
836
837 l_current_colr_ptr = l_colr_data;
838
839 opj_write_bytes(l_current_colr_ptr, l_colr_size,
840 4); /* write box size */
841 l_current_colr_ptr += 4;
842
843 opj_write_bytes(l_current_colr_ptr, JP2_COLR, 4); /* BPCC */
844 l_current_colr_ptr += 4;
845
846 opj_write_bytes(l_current_colr_ptr, jp2->meth, 1); /* METH */
847 ++l_current_colr_ptr;
848
849 opj_write_bytes(l_current_colr_ptr, jp2->precedence, 1); /* PRECEDENCE */
850 ++l_current_colr_ptr;
851
852 opj_write_bytes(l_current_colr_ptr, jp2->approx, 1); /* APPROX */
853 ++l_current_colr_ptr;
854
855 if (jp2->meth ==
856 1) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */
857 opj_write_bytes(l_current_colr_ptr, jp2->enumcs, 4);
858 } /* EnumCS */
859 else {
860 if (jp2->meth == 2) { /* ICC profile */
861 OPJ_UINT32 i;
862 for (i = 0; i < jp2->color.icc_profile_len; ++i) {
863 opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1);
864 ++l_current_colr_ptr;
865 }
866 }
867 }
868
869 *p_nb_bytes_written = l_colr_size;
870
871 return l_colr_data;
872}
873
874static void opj_jp2_free_pclr(opj_jp2_color_t *color)
875{
876 opj_free(color->jp2_pclr->channel_sign);
877 opj_free(color->jp2_pclr->channel_size);
878 opj_free(color->jp2_pclr->entries);
879
880 if (color->jp2_pclr->cmap) {
881 opj_free(color->jp2_pclr->cmap);
882 }
883
884 opj_free(color->jp2_pclr);
885 color->jp2_pclr = NULL;
886}
887
888static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
889 opj_event_mgr_t *p_manager)
890{
891 OPJ_UINT16 i;
892
893 /* testcase 4149.pdf.SIGSEGV.cf7.3501 */
894 if (color->jp2_cdef) {
895 opj_jp2_cdef_info_t *info = color->jp2_cdef->info;
896 OPJ_UINT16 n = color->jp2_cdef->n;
897 OPJ_UINT32 nr_channels =
898 image->numcomps; /* FIXME image->numcomps == jp2->numcomps before color is applied ??? */
899
900 /* cdef applies to cmap channels if any */
901 if (color->jp2_pclr && color->jp2_pclr->cmap) {
902 nr_channels = (OPJ_UINT32)color->jp2_pclr->nr_channels;
903 }
904
905 for (i = 0; i < n; i++) {
906 if (info[i].cn >= nr_channels) {
907 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
908 info[i].cn, nr_channels);
909 return OPJ_FALSE;
910 }
911 if (info[i].asoc == 65535U) {
912 continue;
913 }
914
915 if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
916 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
917 info[i].asoc - 1, nr_channels);
918 return OPJ_FALSE;
919 }
920 }
921
922 /* issue 397 */
923 /* ISO 15444-1 states that if cdef is present, it shall contain a complete list of channel definitions. */
924 while (nr_channels > 0) {
925 for (i = 0; i < n; ++i) {
926 if ((OPJ_UINT32)info[i].cn == (nr_channels - 1U)) {
927 break;
928 }
929 }
930 if (i == n) {
931 opj_event_msg(p_manager, EVT_ERROR, "Incomplete channel definitions.\n");
932 return OPJ_FALSE;
933 }
934 --nr_channels;
935 }
936 }
937
938 /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and
939 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */
940 if (color->jp2_pclr && color->jp2_pclr->cmap) {
941 OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels;
942 opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap;
943 OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE;
944
945 /* verify that all original components match an existing one */
946 for (i = 0; i < nr_channels; i++) {
947 if (cmap[i].cmp >= image->numcomps) {
948 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
949 cmap[i].cmp, image->numcomps);
950 is_sane = OPJ_FALSE;
951 }
952 }
953
954 pcol_usage = (OPJ_BOOL *) opj_calloc(nr_channels, sizeof(OPJ_BOOL));
955 if (!pcol_usage) {
956 opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n");
957 return OPJ_FALSE;
958 }
959 /* verify that no component is targeted more than once */
960 for (i = 0; i < nr_channels; i++) {
961 OPJ_BYTE mtyp = cmap[i].mtyp;
962 OPJ_BYTE pcol = cmap[i].pcol;
963 /* See ISO 15444-1 Table I.14 – MTYPi field values */
964 if (mtyp != 0 && mtyp != 1) {
965 opj_event_msg(p_manager, EVT_ERROR,
966 "Invalid value for cmap[%d].mtyp = %d.\n", i,
967 mtyp);
968 is_sane = OPJ_FALSE;
969 } else if (pcol >= nr_channels) {
970 opj_event_msg(p_manager, EVT_ERROR,
971 "Invalid component/palette index for direct mapping %d.\n", pcol);
972 is_sane = OPJ_FALSE;
973 } else if (pcol_usage[pcol] && mtyp == 1) {
974 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
975 is_sane = OPJ_FALSE;
976 } else if (mtyp == 0 && pcol != 0) {
977 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
978 * the value of this field shall be 0. */
979 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i,
980 pcol);
981 is_sane = OPJ_FALSE;
982 } else if (mtyp == 1 && pcol != i) {
983 /* OpenJPEG implementation limitation. See assert(i == pcol); */
984 /* in opj_jp2_apply_pclr() */
985 opj_event_msg(p_manager, EVT_ERROR,
986 "Implementation limitation: for palette mapping, "
987 "pcol[%d] should be equal to %d, but is equal "
988 "to %d.\n", i, i, pcol);
989 is_sane = OPJ_FALSE;
990 } else {
991 pcol_usage[pcol] = OPJ_TRUE;
992 }
993 }
994 /* verify that all components are targeted at least once */
995 for (i = 0; i < nr_channels; i++) {
996 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
997 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n",
998 i);
999 is_sane = OPJ_FALSE;
1000 }
1001 }
1002 /* Issue 235/447 weird cmap */
1003 if (1 && is_sane && (image->numcomps == 1U)) {
1004 for (i = 0; i < nr_channels; i++) {
1005 if (!pcol_usage[i]) {
1006 is_sane = 0U;
1007 opj_event_msg(p_manager, EVT_WARNING,
1008 "Component mapping seems wrong. Trying to correct.\n", i);
1009 break;
1010 }
1011 }
1012 if (!is_sane) {
1013 is_sane = OPJ_TRUE;
1014 for (i = 0; i < nr_channels; i++) {
1015 cmap[i].mtyp = 1U;
1016 cmap[i].pcol = (OPJ_BYTE) i;
1017 }
1018 }
1019 }
1020 opj_free(pcol_usage);
1021 if (!is_sane) {
1022 return OPJ_FALSE;
1023 }
1024 }
1025
1026 return OPJ_TRUE;
1027}
1028
1029/* file9.jp2 */
1030static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
1031 opj_jp2_color_t *color,
1032 opj_event_mgr_t * p_manager)
1033{
1034 opj_image_comp_t *old_comps, *new_comps;
1035 OPJ_BYTE *channel_size, *channel_sign;
1036 OPJ_UINT32 *entries;
1037 opj_jp2_cmap_comp_t *cmap;
1038 OPJ_INT32 *src, *dst;
1039 OPJ_UINT32 j, max;
1040 OPJ_UINT16 i, nr_channels, cmp, pcol;
1041 OPJ_INT32 k, top_k;
1042
1043 channel_size = color->jp2_pclr->channel_size;
1044 channel_sign = color->jp2_pclr->channel_sign;
1045 entries = color->jp2_pclr->entries;
1046 cmap = color->jp2_pclr->cmap;
1047 nr_channels = color->jp2_pclr->nr_channels;
1048
1049 for (i = 0; i < nr_channels; ++i) {
1050 /* Palette mapping: */
1051 cmp = cmap[i].cmp;
1052 if (image->comps[cmp].data == NULL) {
1053 opj_event_msg(p_manager, EVT_ERROR,
1054 "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i);
1055 return OPJ_FALSE;
1056 }
1057 }
1058
1059 old_comps = image->comps;
1060 new_comps = (opj_image_comp_t*)
1061 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
1062 if (!new_comps) {
1063 opj_event_msg(p_manager, EVT_ERROR,
1064 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1065 return OPJ_FALSE;
1066 }
1067 for (i = 0; i < nr_channels; ++i) {
1068 pcol = cmap[i].pcol;
1069 cmp = cmap[i].cmp;
1070
1071 /* Direct use */
1072 if (cmap[i].mtyp == 0) {
1073 assert(pcol == 0);
1074 new_comps[i] = old_comps[cmp];
1075 } else {
1076 assert(i == pcol);
1077 new_comps[pcol] = old_comps[cmp];
1078 }
1079
1080 /* Palette mapping: */
1081 new_comps[i].data = (OPJ_INT32*)
1082 opj_image_data_alloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(OPJ_INT32));
1083 if (!new_comps[i].data) {
1084 while (i > 0) {
1085 -- i;
1086 opj_image_data_free(new_comps[i].data);
1087 }
1088 opj_free(new_comps);
1089 opj_event_msg(p_manager, EVT_ERROR,
1090 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1091 return OPJ_FALSE;
1092 }
1093 new_comps[i].prec = channel_size[i];
1094 new_comps[i].sgnd = channel_sign[i];
1095 }
1096
1097 top_k = color->jp2_pclr->nr_entries - 1;
1098
1099 for (i = 0; i < nr_channels; ++i) {
1100 /* Palette mapping: */
1101 cmp = cmap[i].cmp;
1102 pcol = cmap[i].pcol;
1103 src = old_comps[cmp].data;
1104 assert(src); /* verified above */
1105 max = new_comps[pcol].w * new_comps[pcol].h;
1106
1107 /* Direct use: */
1108 if (cmap[i].mtyp == 0) {
1109 assert(cmp == 0);
1110 dst = new_comps[i].data;
1111 assert(dst);
1112 for (j = 0; j < max; ++j) {
1113 dst[j] = src[j];
1114 }
1115 } else {
1116 assert(i == pcol);
1117 dst = new_comps[pcol].data;
1118 assert(dst);
1119 for (j = 0; j < max; ++j) {
1120 /* The index */
1121 if ((k = src[j]) < 0) {
1122 k = 0;
1123 } else if (k > top_k) {
1124 k = top_k;
1125 }
1126
1127 /* The colour */
1128 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
1129 }
1130 }
1131 }
1132
1133 max = image->numcomps;
1134 for (i = 0; i < max; ++i) {
1135 if (old_comps[i].data) {
1136 opj_image_data_free(old_comps[i].data);
1137 }
1138 }
1139
1140 opj_free(old_comps);
1141 image->comps = new_comps;
1142 image->numcomps = nr_channels;
1143
1144 return OPJ_TRUE;
1145}/* apply_pclr() */
1146
1147static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
1148 OPJ_BYTE * p_pclr_header_data,
1149 OPJ_UINT32 p_pclr_header_size,
1150 opj_event_mgr_t * p_manager
1151 )
1152{
1153 opj_jp2_pclr_t *jp2_pclr;
1154 OPJ_BYTE *channel_size, *channel_sign;
1155 OPJ_UINT32 *entries;
1156 OPJ_UINT16 nr_entries, nr_channels;
1157 OPJ_UINT16 i, j;
1158 OPJ_UINT32 l_value;
1159 OPJ_BYTE *orig_header_data = p_pclr_header_data;
1160
1161 /* preconditions */
1162 assert(p_pclr_header_data != 00);
1163 assert(jp2 != 00);
1164 assert(p_manager != 00);
1165 (void)p_pclr_header_size;
1166
1167 if (jp2->color.jp2_pclr) {
1168 return OPJ_FALSE;
1169 }
1170
1171 if (p_pclr_header_size < 3) {
1172 return OPJ_FALSE;
1173 }
1174
1175 opj_read_bytes(p_pclr_header_data, &l_value, 2); /* NE */
1176 p_pclr_header_data += 2;
1177 nr_entries = (OPJ_UINT16) l_value;
1178 if ((nr_entries == 0U) || (nr_entries > 1024U)) {
1179 opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n",
1180 (int)nr_entries);
1181 return OPJ_FALSE;
1182 }
1183
1184 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */
1185 ++p_pclr_header_data;
1186 nr_channels = (OPJ_UINT16) l_value;
1187 if (nr_channels == 0U) {
1188 opj_event_msg(p_manager, EVT_ERROR,
1189 "Invalid PCLR box. Reports 0 palette columns\n");
1190 return OPJ_FALSE;
1191 }
1192
1193 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) {
1194 return OPJ_FALSE;
1195 }
1196
1197 entries = (OPJ_UINT32*) opj_malloc((size_t)nr_channels * nr_entries * sizeof(
1198 OPJ_UINT32));
1199 if (!entries) {
1200 return OPJ_FALSE;
1201 }
1202 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
1203 if (!channel_size) {
1204 opj_free(entries);
1205 return OPJ_FALSE;
1206 }
1207 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
1208 if (!channel_sign) {
1209 opj_free(entries);
1210 opj_free(channel_size);
1211 return OPJ_FALSE;
1212 }
1213
1214 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
1215 if (!jp2_pclr) {
1216 opj_free(entries);
1217 opj_free(channel_size);
1218 opj_free(channel_sign);
1219 return OPJ_FALSE;
1220 }
1221
1222 jp2_pclr->channel_sign = channel_sign;
1223 jp2_pclr->channel_size = channel_size;
1224 jp2_pclr->entries = entries;
1225 jp2_pclr->nr_entries = nr_entries;
1226 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
1227 jp2_pclr->cmap = NULL;
1228
1229 jp2->color.jp2_pclr = jp2_pclr;
1230
1231 for (i = 0; i < nr_channels; ++i) {
1232 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* Bi */
1233 ++p_pclr_header_data;
1234
1235 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1236 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1237 }
1238
1239 for (j = 0; j < nr_entries; ++j) {
1240 for (i = 0; i < nr_channels; ++i) {
1241 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3);
1242
1243 if (bytes_to_read > sizeof(OPJ_UINT32)) {
1244 bytes_to_read = sizeof(OPJ_UINT32);
1245 }
1246 if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data -
1247 orig_header_data) + (ptrdiff_t)bytes_to_read) {
1248 return OPJ_FALSE;
1249 }
1250
1251 opj_read_bytes(p_pclr_header_data, &l_value, bytes_to_read); /* Cji */
1252 p_pclr_header_data += bytes_to_read;
1253 *entries = (OPJ_UINT32) l_value;
1254 entries++;
1255 }
1256 }
1257
1258 return OPJ_TRUE;
1259}
1260
1261static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
1262 OPJ_BYTE * p_cmap_header_data,
1263 OPJ_UINT32 p_cmap_header_size,
1264 opj_event_mgr_t * p_manager
1265 )
1266{
1267 opj_jp2_cmap_comp_t *cmap;
1268 OPJ_BYTE i, nr_channels;
1269 OPJ_UINT32 l_value;
1270
1271 /* preconditions */
1272 assert(jp2 != 00);
1273 assert(p_cmap_header_data != 00);
1274 assert(p_manager != 00);
1275 (void)p_cmap_header_size;
1276
1277 /* Need nr_channels: */
1278 if (jp2->color.jp2_pclr == NULL) {
1279 opj_event_msg(p_manager, EVT_ERROR,
1280 "Need to read a PCLR box before the CMAP box.\n");
1281 return OPJ_FALSE;
1282 }
1283
1284 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1285 * inside a JP2 Header box' :
1286 */
1287 if (jp2->color.jp2_pclr->cmap) {
1288 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1289 return OPJ_FALSE;
1290 }
1291
1292 nr_channels = jp2->color.jp2_pclr->nr_channels;
1293 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1294 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1295 return OPJ_FALSE;
1296 }
1297
1298 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(
1299 opj_jp2_cmap_comp_t));
1300 if (!cmap) {
1301 return OPJ_FALSE;
1302 }
1303
1304
1305 for (i = 0; i < nr_channels; ++i) {
1306 opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
1307 p_cmap_header_data += 2;
1308 cmap[i].cmp = (OPJ_UINT16) l_value;
1309
1310 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1311 ++p_cmap_header_data;
1312 cmap[i].mtyp = (OPJ_BYTE) l_value;
1313
1314 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1315 ++p_cmap_header_data;
1316 cmap[i].pcol = (OPJ_BYTE) l_value;
1317 }
1318
1319 jp2->color.jp2_pclr->cmap = cmap;
1320
1321 return OPJ_TRUE;
1322}
1323
1324static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
1325 opj_event_mgr_t *manager)
1326{
1327 opj_jp2_cdef_info_t *info;
1328 OPJ_UINT16 i, n, cn, asoc, acn;
1329
1330 info = color->jp2_cdef->info;
1331 n = color->jp2_cdef->n;
1332
1333 for (i = 0; i < n; ++i) {
1334 /* WATCH: acn = asoc - 1 ! */
1335 asoc = info[i].asoc;
1336 cn = info[i].cn;
1337
1338 if (cn >= image->numcomps) {
1339 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
1340 cn, image->numcomps);
1341 continue;
1342 }
1343 if (asoc == 0 || asoc == 65535) {
1344 image->comps[cn].alpha = info[i].typ;
1345 continue;
1346 }
1347
1348 acn = (OPJ_UINT16)(asoc - 1);
1349 if (acn >= image->numcomps) {
1350 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
1351 acn, image->numcomps);
1352 continue;
1353 }
1354
1355 /* Swap only if color channel */
1356 if ((cn != acn) && (info[i].typ == 0)) {
1357 opj_image_comp_t saved;
1358 OPJ_UINT16 j;
1359
1360 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1361 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1362 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1363
1364 /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
1365 for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
1366 if (info[j].cn == cn) {
1367 info[j].cn = acn;
1368 } else if (info[j].cn == acn) {
1369 info[j].cn = cn;
1370 }
1371 /* asoc is related to color index. Do not update. */
1372 }
1373 }
1374
1375 image->comps[cn].alpha = info[i].typ;
1376 }
1377
1378 if (color->jp2_cdef->info) {
1379 opj_free(color->jp2_cdef->info);
1380 }
1381
1382 opj_free(color->jp2_cdef);
1383 color->jp2_cdef = NULL;
1384
1385}/* jp2_apply_cdef() */
1386
1387static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
1388 OPJ_BYTE * p_cdef_header_data,
1389 OPJ_UINT32 p_cdef_header_size,
1390 opj_event_mgr_t * p_manager
1391 )
1392{
1393 opj_jp2_cdef_info_t *cdef_info;
1394 OPJ_UINT16 i;
1395 OPJ_UINT32 l_value;
1396
1397 /* preconditions */
1398 assert(jp2 != 00);
1399 assert(p_cdef_header_data != 00);
1400 assert(p_manager != 00);
1401 (void)p_cdef_header_size;
1402
1403 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1404 * inside a JP2 Header box.'*/
1405 if (jp2->color.jp2_cdef) {
1406 return OPJ_FALSE;
1407 }
1408
1409 if (p_cdef_header_size < 2) {
1410 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1411 return OPJ_FALSE;
1412 }
1413
1414 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
1415 p_cdef_header_data += 2;
1416
1417 if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
1418 opj_event_msg(p_manager, EVT_ERROR,
1419 "Number of channel description is equal to zero in CDEF box.\n");
1420 return OPJ_FALSE;
1421 }
1422
1423 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1424 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1425 return OPJ_FALSE;
1426 }
1427
1428 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
1429 opj_jp2_cdef_info_t));
1430 if (!cdef_info) {
1431 return OPJ_FALSE;
1432 }
1433
1434 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1435 if (!jp2->color.jp2_cdef) {
1436 opj_free(cdef_info);
1437 return OPJ_FALSE;
1438 }
1439 jp2->color.jp2_cdef->info = cdef_info;
1440 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1441
1442 for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1443 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1444 p_cdef_header_data += 2;
1445 cdef_info[i].cn = (OPJ_UINT16) l_value;
1446
1447 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1448 p_cdef_header_data += 2;
1449 cdef_info[i].typ = (OPJ_UINT16) l_value;
1450
1451 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1452 p_cdef_header_data += 2;
1453 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1454 }
1455
1456 return OPJ_TRUE;
1457}
1458
1459static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
1460 OPJ_BYTE * p_colr_header_data,
1461 OPJ_UINT32 p_colr_header_size,
1462 opj_event_mgr_t * p_manager
1463 )
1464{
1465 OPJ_UINT32 l_value;
1466
1467 /* preconditions */
1468 assert(jp2 != 00);
1469 assert(p_colr_header_data != 00);
1470 assert(p_manager != 00);
1471
1472 if (p_colr_header_size < 3) {
1473 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1474 return OPJ_FALSE;
1475 }
1476
1477 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1478 * Specification boxes after the first.'
1479 */
1480 if (jp2->color.jp2_has_colr) {
1481 opj_event_msg(p_manager, EVT_INFO,
1482 "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1483 p_colr_header_data += p_colr_header_size;
1484 return OPJ_TRUE;
1485 }
1486
1487 opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
1488 ++p_colr_header_data;
1489
1490 opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
1491 ++p_colr_header_data;
1492
1493 opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
1494 ++p_colr_header_data;
1495
1496 if (jp2->meth == 1) {
1497 if (p_colr_header_size < 7) {
1498 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
1499 p_colr_header_size);
1500 return OPJ_FALSE;
1501 }
1502 if ((p_colr_header_size > 7) &&
1503 (jp2->enumcs != 14)) { /* handled below for CIELab) */
1504 /* testcase Altona_Technical_v20_x4.pdf */
1505 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
1506 p_colr_header_size);
1507 }
1508
1509 opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
1510
1511 p_colr_header_data += 4;
1512
1513 if (jp2->enumcs == 14) { /* CIELab */
1514 OPJ_UINT32 *cielab;
1515 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1516
1517 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1518 if (cielab == NULL) {
1519 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
1520 return OPJ_FALSE;
1521 }
1522 cielab[0] = 14; /* enumcs */
1523
1524 /* default values */
1525 rl = ra = rb = ol = oa = ob = 0;
1526 il = 0x00443530; /* D50 */
1527 cielab[1] = 0x44454600;/* DEF */
1528
1529 if (p_colr_header_size == 35) {
1530 opj_read_bytes(p_colr_header_data, &rl, 4);
1531 p_colr_header_data += 4;
1532 opj_read_bytes(p_colr_header_data, &ol, 4);
1533 p_colr_header_data += 4;
1534 opj_read_bytes(p_colr_header_data, &ra, 4);
1535 p_colr_header_data += 4;
1536 opj_read_bytes(p_colr_header_data, &oa, 4);
1537 p_colr_header_data += 4;
1538 opj_read_bytes(p_colr_header_data, &rb, 4);
1539 p_colr_header_data += 4;
1540 opj_read_bytes(p_colr_header_data, &ob, 4);
1541 p_colr_header_data += 4;
1542 opj_read_bytes(p_colr_header_data, &il, 4);
1543 p_colr_header_data += 4;
1544
1545 cielab[1] = 0;
1546 } else if (p_colr_header_size != 7) {
1547 opj_event_msg(p_manager, EVT_WARNING,
1548 "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
1549 }
1550 cielab[2] = rl;
1551 cielab[4] = ra;
1552 cielab[6] = rb;
1553 cielab[3] = ol;
1554 cielab[5] = oa;
1555 cielab[7] = ob;
1556 cielab[8] = il;
1557
1558 jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
1559 jp2->color.icc_profile_len = 0;
1560 }
1561 jp2->color.jp2_has_colr = 1;
1562 } else if (jp2->meth == 2) {
1563 /* ICC profile */
1564 OPJ_INT32 it_icc_value = 0;
1565 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1566
1567 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1568 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
1569 if (!jp2->color.icc_profile_buf) {
1570 jp2->color.icc_profile_len = 0;
1571 return OPJ_FALSE;
1572 }
1573
1574 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
1575 opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
1576 ++p_colr_header_data;
1577 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1578 }
1579
1580 jp2->color.jp2_has_colr = 1;
1581 } else if (jp2->meth > 2) {
1582 /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
1583 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1584 opj_event_msg(p_manager, EVT_INFO,
1585 "COLR BOX meth value is not a regular value (%d), "
1586 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1587 }
1588 if (jp2->color.jp2_has_colr) {
1589 jp2->j2k->enumcs = jp2->enumcs;
1590 }
1591 return OPJ_TRUE;
1592}
1593
1594OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1595 opj_stream_private_t *p_stream,
1596 opj_image_t* p_image,
1597 opj_event_mgr_t * p_manager)
1598{
1599 if (!p_image) {
1600 return OPJ_FALSE;
1601 }
1602
1603 /* J2K decoding */
1604 if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
1605 opj_event_msg(p_manager, EVT_ERROR,
1606 "Failed to decode the codestream in the JP2 file\n");
1607 return OPJ_FALSE;
1608 }
1609
1610 if (jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
1611 /* Bypass all JP2 component transforms */
1612 return OPJ_TRUE;
1613 }
1614
1615 if (!jp2->ignore_pclr_cmap_cdef) {
1616 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1617 return OPJ_FALSE;
1618 }
1619
1620 /* Set Image Color Space */
1621 if (jp2->enumcs == 16) {
1622 p_image->color_space = OPJ_CLRSPC_SRGB;
1623 } else if (jp2->enumcs == 17) {
1624 p_image->color_space = OPJ_CLRSPC_GRAY;
1625 } else if (jp2->enumcs == 18) {
1626 p_image->color_space = OPJ_CLRSPC_SYCC;
1627 } else if (jp2->enumcs == 24) {
1628 p_image->color_space = OPJ_CLRSPC_EYCC;
1629 } else if (jp2->enumcs == 12) {
1630 p_image->color_space = OPJ_CLRSPC_CMYK;
1631 } else {
1632 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
1633 }
1634
1635 if (jp2->color.jp2_pclr) {
1636 /* Part 1, I.5.3.4: Either both or none : */
1637 if (!jp2->color.jp2_pclr->cmap) {
1638 opj_jp2_free_pclr(&(jp2->color));
1639 } else {
1640 if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
1641 return OPJ_FALSE;
1642 }
1643 }
1644 }
1645
1646 /* Apply the color space if needed */
1647 if (jp2->color.jp2_cdef) {
1648 opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
1649 }
1650
1651 if (jp2->color.icc_profile_buf) {
1652 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1653 p_image->icc_profile_len = jp2->color.icc_profile_len;
1654 jp2->color.icc_profile_buf = NULL;
1655 }
1656 }
1657
1658 return OPJ_TRUE;
1659}
1660
1661static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1662 opj_stream_private_t *stream,
1663 opj_event_mgr_t * p_manager
1664 )
1665{
1666 opj_jp2_img_header_writer_handler_t l_writers [4];
1667 opj_jp2_img_header_writer_handler_t * l_current_writer;
1668
1669 OPJ_INT32 i, l_nb_pass;
1670 /* size of data for super box*/
1671 OPJ_UINT32 l_jp2h_size = 8;
1672 OPJ_BOOL l_result = OPJ_TRUE;
1673
1674 /* to store the data of the super box */
1675 OPJ_BYTE l_jp2h_data [8];
1676
1677 /* preconditions */
1678 assert(stream != 00);
1679 assert(jp2 != 00);
1680 assert(p_manager != 00);
1681
1682 memset(l_writers, 0, sizeof(l_writers));
1683
1684 if (jp2->bpc == 255) {
1685 l_nb_pass = 3;
1686 l_writers[0].handler = opj_jp2_write_ihdr;
1687 l_writers[1].handler = opj_jp2_write_bpcc;
1688 l_writers[2].handler = opj_jp2_write_colr;
1689 } else {
1690 l_nb_pass = 2;
1691 l_writers[0].handler = opj_jp2_write_ihdr;
1692 l_writers[1].handler = opj_jp2_write_colr;
1693 }
1694
1695 if (jp2->color.jp2_cdef != NULL) {
1696 l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
1697 l_nb_pass++;
1698 }
1699
1700 /* write box header */
1701 /* write JP2H type */
1702 opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
1703
1704 l_current_writer = l_writers;
1705 for (i = 0; i < l_nb_pass; ++i) {
1706 l_current_writer->m_data = l_current_writer->handler(jp2,
1707 &(l_current_writer->m_size));
1708 if (l_current_writer->m_data == 00) {
1709 opj_event_msg(p_manager, EVT_ERROR,
1710 "Not enough memory to hold JP2 Header data\n");
1711 l_result = OPJ_FALSE;
1712 break;
1713 }
1714
1715 l_jp2h_size += l_current_writer->m_size;
1716 ++l_current_writer;
1717 }
1718
1719 if (! l_result) {
1720 l_current_writer = l_writers;
1721 for (i = 0; i < l_nb_pass; ++i) {
1722 if (l_current_writer->m_data != 00) {
1723 opj_free(l_current_writer->m_data);
1724 }
1725 ++l_current_writer;
1726 }
1727
1728 return OPJ_FALSE;
1729 }
1730
1731 /* write super box size */
1732 opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
1733
1734 /* write super box data on stream */
1735 if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
1736 opj_event_msg(p_manager, EVT_ERROR,
1737 "Stream error while writing JP2 Header box\n");
1738 l_result = OPJ_FALSE;
1739 }
1740
1741 if (l_result) {
1742 l_current_writer = l_writers;
1743 for (i = 0; i < l_nb_pass; ++i) {
1744 if (opj_stream_write_data(stream, l_current_writer->m_data,
1745 l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
1746 opj_event_msg(p_manager, EVT_ERROR,
1747 "Stream error while writing JP2 Header box\n");
1748 l_result = OPJ_FALSE;
1749 break;
1750 }
1751 ++l_current_writer;
1752 }
1753 }
1754
1755 l_current_writer = l_writers;
1756
1757 /* cleanup */
1758 for (i = 0; i < l_nb_pass; ++i) {
1759 if (l_current_writer->m_data != 00) {
1760 opj_free(l_current_writer->m_data);
1761 }
1762 ++l_current_writer;
1763 }
1764
1765 return l_result;
1766}
1767
1768static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1769 opj_stream_private_t *cio,
1770 opj_event_mgr_t * p_manager)
1771{
1772 OPJ_UINT32 i;
1773 OPJ_UINT32 l_ftyp_size;
1774 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1775 OPJ_BOOL l_result;
1776
1777 /* preconditions */
1778 assert(cio != 00);
1779 assert(jp2 != 00);
1780 assert(p_manager != 00);
1781 l_ftyp_size = 16 + 4 * jp2->numcl;
1782
1783 l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
1784
1785 if (l_ftyp_data == 00) {
1786 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1787 return OPJ_FALSE;
1788 }
1789
1790 l_current_data_ptr = l_ftyp_data;
1791
1792 opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
1793 l_current_data_ptr += 4;
1794
1795 opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
1796 l_current_data_ptr += 4;
1797
1798 opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
1799 l_current_data_ptr += 4;
1800
1801 opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
1802 l_current_data_ptr += 4;
1803
1804 for (i = 0; i < jp2->numcl; i++) {
1805 opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
1806 }
1807
1808 l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
1809 p_manager) == l_ftyp_size);
1810 if (! l_result) {
1811 opj_event_msg(p_manager, EVT_ERROR,
1812 "Error while writing ftyp data to stream\n");
1813 }
1814
1815 opj_free(l_ftyp_data);
1816
1817 return l_result;
1818}
1819
1820static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1821 opj_stream_private_t *cio,
1822 opj_event_mgr_t * p_manager)
1823{
1824 OPJ_OFF_T j2k_codestream_exit;
1825 OPJ_BYTE l_data_header [8];
1826
1827 /* preconditions */
1828 assert(jp2 != 00);
1829 assert(cio != 00);
1830 assert(p_manager != 00);
1831 assert(opj_stream_has_seek(cio));
1832
1833 j2k_codestream_exit = opj_stream_tell(cio);
1834 opj_write_bytes(l_data_header,
1835 (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
1836 4); /* size of codestream */
1837 opj_write_bytes(l_data_header + 4, JP2_JP2C,
1838 4); /* JP2C */
1839
1840 if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
1841 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1842 return OPJ_FALSE;
1843 }
1844
1845 if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
1846 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1847 return OPJ_FALSE;
1848 }
1849
1850 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
1851 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1852 return OPJ_FALSE;
1853 }
1854
1855 return OPJ_TRUE;
1856}
1857
1858static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
1859 opj_stream_private_t *cio,
1860 opj_event_mgr_t * p_manager)
1861{
1862 /* 12 bytes will be read */
1863 OPJ_BYTE l_signature_data [12];
1864
1865 /* preconditions */
1866 assert(cio != 00);
1867 assert(jp2 != 00);
1868 assert(p_manager != 00);
1869
1870 OPJ_UNUSED(jp2);
1871
1872 /* write box length */
1873 opj_write_bytes(l_signature_data, 12, 4);
1874 /* writes box type */
1875 opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
1876 /* writes magic number*/
1877 opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
1878
1879 if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
1880 return OPJ_FALSE;
1881 }
1882
1883 return OPJ_TRUE;
1884}
1885
1886/* ----------------------------------------------------------------------- */
1887/* JP2 decoder interface */
1888/* ----------------------------------------------------------------------- */
1889
1890void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1891{
1892 /* setup the J2K codec */
1893 opj_j2k_setup_decoder(jp2->j2k, parameters);
1894
1895 /* further JP2 initializations go here */
1896 jp2->color.jp2_has_colr = 0;
1897 jp2->ignore_pclr_cmap_cdef = parameters->flags &
1898 OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1899}
1900
1901OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
1902{
1903 return opj_j2k_set_threads(jp2->j2k, num_threads);
1904}
1905
1906/* ----------------------------------------------------------------------- */
1907/* JP2 encoder interface */
1908/* ----------------------------------------------------------------------- */
1909
1910OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
1911 opj_cparameters_t *parameters,
1912 opj_image_t *image,
1913 opj_event_mgr_t * p_manager)
1914{
1915 OPJ_UINT32 i;
1916 OPJ_UINT32 depth_0;
1917 OPJ_UINT32 sign;
1918 OPJ_UINT32 alpha_count;
1919 OPJ_UINT32 color_channels = 0U;
1920 OPJ_UINT32 alpha_channel = 0U;
1921
1922
1923 if (!jp2 || !parameters || !image) {
1924 return OPJ_FALSE;
1925 }
1926
1927 /* setup the J2K codec */
1928 /* ------------------- */
1929
1930 /* Check if number of components respects standard */
1931 if (image->numcomps < 1 || image->numcomps > 16384) {
1932 opj_event_msg(p_manager, EVT_ERROR,
1933 "Invalid number of components specified while setting up JP2 encoder\n");
1934 return OPJ_FALSE;
1935 }
1936
1937 if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
1938 p_manager) == OPJ_FALSE) {
1939 return OPJ_FALSE;
1940 }
1941
1942 /* setup the JP2 codec */
1943 /* ------------------- */
1944
1945 /* Profile box */
1946
1947 jp2->brand = JP2_JP2; /* BR */
1948 jp2->minversion = 0; /* MinV */
1949 jp2->numcl = 1;
1950 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1951 if (!jp2->cl) {
1952 opj_event_msg(p_manager, EVT_ERROR,
1953 "Not enough memory when setup the JP2 encoder\n");
1954 return OPJ_FALSE;
1955 }
1956 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1957
1958 /* Image Header box */
1959
1960 jp2->numcomps = image->numcomps; /* NC */
1961 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
1962 opj_jp2_comps_t));
1963 if (!jp2->comps) {
1964 opj_event_msg(p_manager, EVT_ERROR,
1965 "Not enough memory when setup the JP2 encoder\n");
1966 /* Memory of jp2->cl will be freed by opj_jp2_destroy */
1967 return OPJ_FALSE;
1968 }
1969
1970 jp2->h = image->y1 - image->y0; /* HEIGHT */
1971 jp2->w = image->x1 - image->x0; /* WIDTH */
1972 /* BPC */
1973 depth_0 = image->comps[0].prec - 1;
1974 sign = image->comps[0].sgnd;
1975 jp2->bpc = depth_0 + (sign << 7);
1976 for (i = 1; i < image->numcomps; i++) {
1977 OPJ_UINT32 depth = image->comps[i].prec - 1;
1978 sign = image->comps[i].sgnd;
1979 if (depth_0 != depth) {
1980 jp2->bpc = 255;
1981 }
1982 }
1983 jp2->C = 7; /* C : Always 7 */
1984 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
1985 jp2->IPR = 0; /* IPR, no intellectual property */
1986
1987 /* BitsPerComponent box */
1988 for (i = 0; i < image->numcomps; i++) {
1989 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
1990 }
1991
1992 /* Colour Specification box */
1993 if (image->icc_profile_len) {
1994 jp2->meth = 2;
1995 jp2->enumcs = 0;
1996 } else {
1997 jp2->meth = 1;
1998 if (image->color_space == 1) {
1999 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
2000 } else if (image->color_space == 2) {
2001 jp2->enumcs = 17; /* greyscale */
2002 } else if (image->color_space == 3) {
2003 jp2->enumcs = 18; /* YUV */
2004 }
2005 }
2006
2007 /* Channel Definition box */
2008 /* FIXME not provided by parameters */
2009 /* We try to do what we can... */
2010 alpha_count = 0U;
2011 for (i = 0; i < image->numcomps; i++) {
2012 if (image->comps[i].alpha != 0) {
2013 alpha_count++;
2014 alpha_channel = i;
2015 }
2016 }
2017 if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
2018 switch (jp2->enumcs) {
2019 case 16:
2020 case 18:
2021 color_channels = 3;
2022 break;
2023 case 17:
2024 color_channels = 1;
2025 break;
2026 default:
2027 alpha_count = 0U;
2028 break;
2029 }
2030 if (alpha_count == 0U) {
2031 opj_event_msg(p_manager, EVT_WARNING,
2032 "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
2033 } else if (image->numcomps < (color_channels + 1)) {
2034 opj_event_msg(p_manager, EVT_WARNING,
2035 "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
2036 alpha_count = 0U;
2037 } else if ((OPJ_UINT32)alpha_channel < color_channels) {
2038 opj_event_msg(p_manager, EVT_WARNING,
2039 "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
2040 alpha_count = 0U;
2041 }
2042 } else if (alpha_count > 1) {
2043 opj_event_msg(p_manager, EVT_WARNING,
2044 "Multiple alpha channels specified. No cdef box will be created.\n");
2045 }
2046 if (alpha_count == 1U) { /* if here, we know what we can do */
2047 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
2048 if (!jp2->color.jp2_cdef) {
2049 opj_event_msg(p_manager, EVT_ERROR,
2050 "Not enough memory to setup the JP2 encoder\n");
2051 return OPJ_FALSE;
2052 }
2053 /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
2054 /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
2055 jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
2056 image->numcomps * sizeof(opj_jp2_cdef_info_t));
2057 if (!jp2->color.jp2_cdef->info) {
2058 /* memory will be freed by opj_jp2_destroy */
2059 opj_event_msg(p_manager, EVT_ERROR,
2060 "Not enough memory to setup the JP2 encoder\n");
2061 return OPJ_FALSE;
2062 }
2063 jp2->color.jp2_cdef->n = (OPJ_UINT16)
2064 image->numcomps; /* cast is valid : image->numcomps [1,16384] */
2065 for (i = 0U; i < color_channels; i++) {
2066 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2067 i; /* cast is valid : image->numcomps [1,16384] */
2068 jp2->color.jp2_cdef->info[i].typ = 0U;
2069 jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
2070 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
2071 }
2072 for (; i < image->numcomps; i++) {
2073 if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
2074 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2075 i; /* cast is valid : image->numcomps [1,16384] */
2076 jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
2077 jp2->color.jp2_cdef->info[i].asoc =
2078 0U; /* Apply alpha channel to the whole image */
2079 } else {
2080 /* Unknown channel */
2081 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2082 i; /* cast is valid : image->numcomps [1,16384] */
2083 jp2->color.jp2_cdef->info[i].typ = 65535U;
2084 jp2->color.jp2_cdef->info[i].asoc = 65535U;
2085 }
2086 }
2087 }
2088
2089 jp2->precedence = 0; /* PRECEDENCE */
2090 jp2->approx = 0; /* APPROX */
2091
2092 jp2->jpip_on = parameters->jpip_on;
2093
2094 return OPJ_TRUE;
2095}
2096
2097OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
2098 opj_stream_private_t *stream,
2099 opj_event_mgr_t * p_manager)
2100{
2101 return opj_j2k_encode(jp2->j2k, stream, p_manager);
2102}
2103
2104OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
2105 opj_stream_private_t *cio,
2106 opj_event_mgr_t * p_manager
2107 )
2108{
2109 /* preconditions */
2110 assert(jp2 != 00);
2111 assert(cio != 00);
2112 assert(p_manager != 00);
2113
2114 /* customization of the end encoding */
2115 if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
2116 return OPJ_FALSE;
2117 }
2118
2119 /* write header */
2120 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
2121 return OPJ_FALSE;
2122 }
2123
2124 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
2125}
2126
2127OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
2128 opj_stream_private_t *cio,
2129 opj_event_mgr_t * p_manager
2130 )
2131{
2132 /* preconditions */
2133 assert(jp2 != 00);
2134 assert(cio != 00);
2135 assert(p_manager != 00);
2136
2137 /* customization of the end encoding */
2138 if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
2139 return OPJ_FALSE;
2140 }
2141
2142 if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
2143 return OPJ_FALSE;
2144 }
2145
2146 /* write header */
2147 return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
2148}
2149
2150static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
2151 opj_event_mgr_t * p_manager)
2152{
2153 /* preconditions */
2154 assert(jp2 != 00);
2155 assert(p_manager != 00);
2156
2157#ifdef USE_JPIP
2158 if (jp2->jpip_on) {
2159 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2160 (opj_procedure)opj_jpip_write_iptr, p_manager)) {
2161 return OPJ_FALSE;
2162 }
2163 }
2164#endif
2165 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2166 (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
2167 return OPJ_FALSE;
2168 }
2169 /* DEVELOPER CORNER, add your custom procedures */
2170#ifdef USE_JPIP
2171 if (jp2->jpip_on) {
2172 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2173 (opj_procedure)opj_jpip_write_cidx, p_manager)) {
2174 return OPJ_FALSE;
2175 }
2176 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2177 (opj_procedure)opj_jpip_write_fidx, p_manager)) {
2178 return OPJ_FALSE;
2179 }
2180 }
2181#endif
2182 return OPJ_TRUE;
2183}
2184
2185static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
2186 opj_event_mgr_t * p_manager)
2187{
2188 /* preconditions */
2189 assert(jp2 != 00);
2190 assert(p_manager != 00);
2191
2192 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2193 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2194 return OPJ_FALSE;
2195 }
2196 /* DEVELOPER CORNER, add your custom procedures */
2197
2198 return OPJ_TRUE;
2199}
2200
2201static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
2202 opj_stream_private_t *cio,
2203 opj_event_mgr_t * p_manager
2204 )
2205{
2206 OPJ_BOOL l_is_valid = OPJ_TRUE;
2207 OPJ_UINT32 i;
2208
2209 /* preconditions */
2210 assert(jp2 != 00);
2211 assert(cio != 00);
2212 assert(p_manager != 00);
2213
2214 OPJ_UNUSED(p_manager);
2215
2216 /* JPEG2000 codec validation */
2217
2218 /* STATE checking */
2219 /* make sure the state is at 0 */
2220 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
2221
2222 /* make sure not reading a jp2h ???? WEIRD */
2223 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
2224
2225 /* POINTER validation */
2226 /* make sure a j2k codec is present */
2227 l_is_valid &= (jp2->j2k != 00);
2228
2229 /* make sure a procedure list is present */
2230 l_is_valid &= (jp2->m_procedure_list != 00);
2231
2232 /* make sure a validation list is present */
2233 l_is_valid &= (jp2->m_validation_list != 00);
2234
2235 /* PARAMETER VALIDATION */
2236 /* number of components */
2237 l_is_valid &= (jp2->numcl > 0);
2238 /* width */
2239 l_is_valid &= (jp2->h > 0);
2240 /* height */
2241 l_is_valid &= (jp2->w > 0);
2242 /* precision */
2243 for (i = 0; i < jp2->numcomps; ++i) {
2244 l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
2245 38U); /* 0 is valid, ignore sign for check */
2246 }
2247
2248 /* METH */
2249 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
2250
2251 /* stream validation */
2252 /* back and forth is needed */
2253 l_is_valid &= opj_stream_has_seek(cio);
2254
2255 return l_is_valid;
2256}
2257
2258static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
2259 opj_stream_private_t *stream,
2260 opj_event_mgr_t * p_manager
2261 )
2262{
2263 opj_jp2_box_t box;
2264 OPJ_UINT32 l_nb_bytes_read;
2265 const opj_jp2_header_handler_t * l_current_handler;
2266 const opj_jp2_header_handler_t * l_current_handler_misplaced;
2267 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
2268 OPJ_UINT32 l_current_data_size;
2269 OPJ_BYTE * l_current_data = 00;
2270
2271 /* preconditions */
2272 assert(stream != 00);
2273 assert(jp2 != 00);
2274 assert(p_manager != 00);
2275
2276 l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
2277
2278 if (l_current_data == 00) {
2279 opj_event_msg(p_manager, EVT_ERROR,
2280 "Not enough memory to handle jpeg2000 file header\n");
2281 return OPJ_FALSE;
2282 }
2283
2284 while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
2285 /* is it the codestream box ? */
2286 if (box.type == JP2_JP2C) {
2287 if (jp2->jp2_state & JP2_STATE_HEADER) {
2288 jp2->jp2_state |= JP2_STATE_CODESTREAM;
2289 opj_free(l_current_data);
2290 return OPJ_TRUE;
2291 } else {
2292 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
2293 opj_free(l_current_data);
2294 return OPJ_FALSE;
2295 }
2296 } else if (box.length == 0) {
2297 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2298 opj_free(l_current_data);
2299 return OPJ_FALSE;
2300 }
2301 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
2302 else if (box.length < l_nb_bytes_read) {
2303 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
2304 box.type);
2305 opj_free(l_current_data);
2306 return OPJ_FALSE;
2307 }
2308
2309 l_current_handler = opj_jp2_find_handler(box.type);
2310 l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
2311 l_current_data_size = box.length - l_nb_bytes_read;
2312
2313 if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
2314 if (l_current_handler == 00) {
2315 opj_event_msg(p_manager, EVT_WARNING,
2316 "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
2317 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2318 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2319 if (jp2->jp2_state & JP2_STATE_HEADER) {
2320 /* read anyway, we already have jp2h */
2321 l_current_handler = l_current_handler_misplaced;
2322 } else {
2323 opj_event_msg(p_manager, EVT_WARNING,
2324 "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
2325 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2326 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2327 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2328 if (opj_stream_skip(stream, l_current_data_size,
2329 p_manager) != l_current_data_size) {
2330 opj_event_msg(p_manager, EVT_ERROR,
2331 "Problem with skipping JPEG2000 box, stream error\n");
2332 opj_free(l_current_data);
2333 return OPJ_FALSE;
2334 }
2335 continue;
2336 }
2337 }
2338 if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
2339 /* do not even try to malloc if we can't read */
2340 opj_event_msg(p_manager, EVT_ERROR,
2341 "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
2342 box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2343 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
2344 (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
2345 opj_free(l_current_data);
2346 return OPJ_FALSE;
2347 }
2348 if (l_current_data_size > l_last_data_size) {
2349 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
2350 l_current_data_size);
2351 if (!new_current_data) {
2352 opj_free(l_current_data);
2353 opj_event_msg(p_manager, EVT_ERROR,
2354 "Not enough memory to handle jpeg2000 box\n");
2355 return OPJ_FALSE;
2356 }
2357 l_current_data = new_current_data;
2358 l_last_data_size = l_current_data_size;
2359 }
2360
2361 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
2362 l_current_data_size, p_manager);
2363 if (l_nb_bytes_read != l_current_data_size) {
2364 opj_event_msg(p_manager, EVT_ERROR,
2365 "Problem with reading JPEG2000 box, stream error\n");
2366 opj_free(l_current_data);
2367 return OPJ_FALSE;
2368 }
2369
2370 if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
2371 p_manager)) {
2372 opj_free(l_current_data);
2373 return OPJ_FALSE;
2374 }
2375 } else {
2376 if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
2377 opj_event_msg(p_manager, EVT_ERROR,
2378 "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
2379 opj_free(l_current_data);
2380 return OPJ_FALSE;
2381 }
2382 if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
2383 opj_event_msg(p_manager, EVT_ERROR,
2384 "Malformed JP2 file format: second box must be file type box\n");
2385 opj_free(l_current_data);
2386 return OPJ_FALSE;
2387 }
2388 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2389 if (opj_stream_skip(stream, l_current_data_size,
2390 p_manager) != l_current_data_size) {
2391 if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
2392 /* If we already read the codestream, do not error out */
2393 /* Needed for data/input/nonregression/issue254.jp2 */
2394 opj_event_msg(p_manager, EVT_WARNING,
2395 "Problem with skipping JPEG2000 box, stream error\n");
2396 opj_free(l_current_data);
2397 return OPJ_TRUE;
2398 } else {
2399 opj_event_msg(p_manager, EVT_ERROR,
2400 "Problem with skipping JPEG2000 box, stream error\n");
2401 opj_free(l_current_data);
2402 return OPJ_FALSE;
2403 }
2404 }
2405 }
2406 }
2407
2408 opj_free(l_current_data);
2409
2410 return OPJ_TRUE;
2411}
2412
2413/**
2414 * Executes the given procedures on the given codec.
2415 *
2416 * @param p_procedure_list the list of procedures to execute
2417 * @param jp2 the jpeg2000 file codec to execute the procedures on.
2418 * @param stream the stream to execute the procedures on.
2419 * @param p_manager the user manager.
2420 *
2421 * @return true if all the procedures were successfully executed.
2422 */
2423static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
2424 opj_procedure_list_t * p_procedure_list,
2425 opj_stream_private_t *stream,
2426 opj_event_mgr_t * p_manager
2427 )
2428
2429{
2430 OPJ_BOOL(** l_procedure)(opj_jp2_t * jp2, opj_stream_private_t *,
2431 opj_event_mgr_t *) = 00;
2432 OPJ_BOOL l_result = OPJ_TRUE;
2433 OPJ_UINT32 l_nb_proc, i;
2434
2435 /* preconditions */
2436 assert(p_procedure_list != 00);
2437 assert(jp2 != 00);
2438 assert(stream != 00);
2439 assert(p_manager != 00);
2440
2441 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
2442 l_procedure = (OPJ_BOOL(**)(opj_jp2_t * jp2, opj_stream_private_t *,
2443 opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
2444
2445 for (i = 0; i < l_nb_proc; ++i) {
2446 l_result = l_result && (*l_procedure)(jp2, stream, p_manager);
2447 ++l_procedure;
2448 }
2449
2450 /* and clear the procedure list at the end. */
2451 opj_procedure_list_clear(p_procedure_list);
2452 return l_result;
2453}
2454
2455OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
2456 opj_stream_private_t *stream,
2457 opj_image_t * p_image,
2458 opj_event_mgr_t * p_manager
2459 )
2460{
2461 /* preconditions */
2462 assert(jp2 != 00);
2463 assert(stream != 00);
2464 assert(p_manager != 00);
2465
2466 /* customization of the validation */
2467 if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) {
2468 return OPJ_FALSE;
2469 }
2470
2471 /* validation of the parameters codec */
2472 if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) {
2473 return OPJ_FALSE;
2474 }
2475
2476 /* customization of the encoding */
2477 if (! opj_jp2_setup_header_writing(jp2, p_manager)) {
2478 return OPJ_FALSE;
2479 }
2480
2481 /* write header */
2482 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) {
2483 return OPJ_FALSE;
2484 }
2485
2486 return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager);
2487}
2488
2489static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id)
2490{
2491 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(
2492 opj_jp2_header_handler_t);
2493
2494 for (i = 0; i < l_handler_size; ++i) {
2495 if (jp2_header[i].id == p_id) {
2496 return &jp2_header[i];
2497 }
2498 }
2499 return NULL;
2500}
2501
2502/**
2503 * Finds the image execution function related to the given box id.
2504 *
2505 * @param p_id the id of the handler to fetch.
2506 *
2507 * @return the given handler or 00 if it could not be found.
2508 */
2509static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
2510 OPJ_UINT32 p_id)
2511{
2512 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(
2513 opj_jp2_header_handler_t);
2514 for (i = 0; i < l_handler_size; ++i) {
2515 if (jp2_img_header[i].id == p_id) {
2516 return &jp2_img_header[i];
2517 }
2518 }
2519
2520 return NULL;
2521}
2522
2523/**
2524 * Reads a jpeg2000 file signature box.
2525 *
2526 * @param p_header_data the data contained in the signature box.
2527 * @param jp2 the jpeg2000 file codec.
2528 * @param p_header_size the size of the data contained in the signature box.
2529 * @param p_manager the user event manager.
2530 *
2531 * @return true if the file signature box is valid.
2532 */
2533static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2534 OPJ_BYTE * p_header_data,
2535 OPJ_UINT32 p_header_size,
2536 opj_event_mgr_t * p_manager
2537 )
2538
2539{
2540 OPJ_UINT32 l_magic_number;
2541
2542 /* preconditions */
2543 assert(p_header_data != 00);
2544 assert(jp2 != 00);
2545 assert(p_manager != 00);
2546
2547 if (jp2->jp2_state != JP2_STATE_NONE) {
2548 opj_event_msg(p_manager, EVT_ERROR,
2549 "The signature box must be the first box in the file.\n");
2550 return OPJ_FALSE;
2551 }
2552
2553 /* assure length of data is correct (4 -> magic number) */
2554 if (p_header_size != 4) {
2555 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2556 return OPJ_FALSE;
2557 }
2558
2559 /* rearrange data */
2560 opj_read_bytes(p_header_data, &l_magic_number, 4);
2561 if (l_magic_number != 0x0d0a870a) {
2562 opj_event_msg(p_manager, EVT_ERROR,
2563 "Error with JP Signature : bad magic number\n");
2564 return OPJ_FALSE;
2565 }
2566
2567 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2568
2569 return OPJ_TRUE;
2570}
2571
2572/**
2573 * Reads a a FTYP box - File type box
2574 *
2575 * @param p_header_data the data contained in the FTYP box.
2576 * @param jp2 the jpeg2000 file codec.
2577 * @param p_header_size the size of the data contained in the FTYP box.
2578 * @param p_manager the user event manager.
2579 *
2580 * @return true if the FTYP box is valid.
2581 */
2582static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
2583 OPJ_BYTE * p_header_data,
2584 OPJ_UINT32 p_header_size,
2585 opj_event_mgr_t * p_manager
2586 )
2587{
2588 OPJ_UINT32 i, l_remaining_bytes;
2589
2590 /* preconditions */
2591 assert(p_header_data != 00);
2592 assert(jp2 != 00);
2593 assert(p_manager != 00);
2594
2595 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2596 opj_event_msg(p_manager, EVT_ERROR,
2597 "The ftyp box must be the second box in the file.\n");
2598 return OPJ_FALSE;
2599 }
2600
2601 /* assure length of data is correct */
2602 if (p_header_size < 8) {
2603 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2604 return OPJ_FALSE;
2605 }
2606
2607 opj_read_bytes(p_header_data, &jp2->brand, 4); /* BR */
2608 p_header_data += 4;
2609
2610 opj_read_bytes(p_header_data, &jp2->minversion, 4); /* MinV */
2611 p_header_data += 4;
2612
2613 l_remaining_bytes = p_header_size - 8;
2614
2615 /* the number of remaining bytes should be a multiple of 4 */
2616 if ((l_remaining_bytes & 0x3) != 0) {
2617 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2618 return OPJ_FALSE;
2619 }
2620
2621 /* div by 4 */
2622 jp2->numcl = l_remaining_bytes >> 2;
2623 if (jp2->numcl) {
2624 jp2->cl = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32));
2625 if (jp2->cl == 00) {
2626 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2627 return OPJ_FALSE;
2628 }
2629 }
2630
2631 for (i = 0; i < jp2->numcl; ++i) {
2632 opj_read_bytes(p_header_data, &jp2->cl[i], 4); /* CLi */
2633 p_header_data += 4;
2634 }
2635
2636 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2637
2638 return OPJ_TRUE;
2639}
2640
2641static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
2642 opj_stream_private_t *stream,
2643 opj_event_mgr_t * p_manager)
2644{
2645 /* preconditions */
2646 assert(jp2 != 00);
2647 assert(stream != 00);
2648 assert(p_manager != 00);
2649
2650 jp2->j2k_codestream_offset = opj_stream_tell(stream);
2651
2652 if (opj_stream_skip(stream, 8, p_manager) != 8) {
2653 return OPJ_FALSE;
2654 }
2655
2656 return OPJ_TRUE;
2657}
2658
2659static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2,
2660 opj_stream_private_t *stream,
2661 opj_event_mgr_t * p_manager)
2662{
2663 /* preconditions */
2664 assert(jp2 != 00);
2665 assert(stream != 00);
2666 assert(p_manager != 00);
2667
2668 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2669
2670 if (opj_stream_skip(stream, 24, p_manager) != 24) {
2671 return OPJ_FALSE;
2672 }
2673
2674 return OPJ_TRUE;
2675}
2676
2677/**
2678 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2679 *
2680 * @param p_header_data the data contained in the file header box.
2681 * @param jp2 the jpeg2000 file codec.
2682 * @param p_header_size the size of the data contained in the file header box.
2683 * @param p_manager the user event manager.
2684 *
2685 * @return true if the JP2 Header box was successfully recognized.
2686*/
2687static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
2688 OPJ_BYTE *p_header_data,
2689 OPJ_UINT32 p_header_size,
2690 opj_event_mgr_t * p_manager
2691 )
2692{
2693 OPJ_UINT32 l_box_size = 0, l_current_data_size = 0;
2694 opj_jp2_box_t box;
2695 const opj_jp2_header_handler_t * l_current_handler;
2696 OPJ_BOOL l_has_ihdr = 0;
2697
2698 /* preconditions */
2699 assert(p_header_data != 00);
2700 assert(jp2 != 00);
2701 assert(p_manager != 00);
2702
2703 /* make sure the box is well placed */
2704 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE) {
2705 opj_event_msg(p_manager, EVT_ERROR,
2706 "The box must be the first box in the file.\n");
2707 return OPJ_FALSE;
2708 }
2709
2710 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2711
2712 /* iterate while remaining data */
2713 while (p_header_size > 0) {
2714
2715 if (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size,
2716 p_manager)) {
2717 opj_event_msg(p_manager, EVT_ERROR,
2718 "Stream error while reading JP2 Header box\n");
2719 return OPJ_FALSE;
2720 }
2721
2722 if (box.length > p_header_size) {
2723 opj_event_msg(p_manager, EVT_ERROR,
2724 "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2725 return OPJ_FALSE;
2726 }
2727
2728 l_current_handler = opj_jp2_img_find_handler(box.type);
2729 l_current_data_size = box.length - l_box_size;
2730 p_header_data += l_box_size;
2731
2732 if (l_current_handler != 00) {
2733 if (! l_current_handler->handler(jp2, p_header_data, l_current_data_size,
2734 p_manager)) {
2735 return OPJ_FALSE;
2736 }
2737 } else {
2738 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2739 }
2740
2741 if (box.type == JP2_IHDR) {
2742 l_has_ihdr = 1;
2743 }
2744
2745 p_header_data += l_current_data_size;
2746 p_header_size -= box.length;
2747 }
2748
2749 if (l_has_ihdr == 0) {
2750 opj_event_msg(p_manager, EVT_ERROR,
2751 "Stream error while reading JP2 Header box: no 'ihdr' box.\n");
2752 return OPJ_FALSE;
2753 }
2754
2755 jp2->jp2_state |= JP2_STATE_HEADER;
2756 jp2->has_jp2h = 1;
2757
2758 return OPJ_TRUE;
2759}
2760
2761static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
2762 OPJ_BYTE * p_data,
2763 OPJ_UINT32 * p_number_bytes_read,
2764 OPJ_UINT32 p_box_max_size,
2765 opj_event_mgr_t * p_manager
2766 )
2767{
2768 OPJ_UINT32 l_value;
2769
2770 /* preconditions */
2771 assert(p_data != 00);
2772 assert(box != 00);
2773 assert(p_number_bytes_read != 00);
2774 assert(p_manager != 00);
2775
2776 if (p_box_max_size < 8) {
2777 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2778 return OPJ_FALSE;
2779 }
2780
2781 /* process read data */
2782 opj_read_bytes(p_data, &l_value, 4);
2783 p_data += 4;
2784 box->length = (OPJ_UINT32)(l_value);
2785
2786 opj_read_bytes(p_data, &l_value, 4);
2787 p_data += 4;
2788 box->type = (OPJ_UINT32)(l_value);
2789
2790 *p_number_bytes_read = 8;
2791
2792 /* do we have a "special very large box ?" */
2793 /* read then the XLBox */
2794 if (box->length == 1) {
2795 OPJ_UINT32 l_xl_part_size;
2796
2797 if (p_box_max_size < 16) {
2798 opj_event_msg(p_manager, EVT_ERROR,
2799 "Cannot handle XL box of less than 16 bytes\n");
2800 return OPJ_FALSE;
2801 }
2802
2803 opj_read_bytes(p_data, &l_xl_part_size, 4);
2804 p_data += 4;
2805 *p_number_bytes_read += 4;
2806
2807 if (l_xl_part_size != 0) {
2808 opj_event_msg(p_manager, EVT_ERROR,
2809 "Cannot handle box sizes higher than 2^32\n");
2810 return OPJ_FALSE;
2811 }
2812
2813 opj_read_bytes(p_data, &l_value, 4);
2814 *p_number_bytes_read += 4;
2815 box->length = (OPJ_UINT32)(l_value);
2816
2817 if (box->length == 0) {
2818 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2819 return OPJ_FALSE;
2820 }
2821 } else if (box->length == 0) {
2822 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2823 return OPJ_FALSE;
2824 }
2825 if (box->length < *p_number_bytes_read) {
2826 opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n");
2827 return OPJ_FALSE;
2828 }
2829 return OPJ_TRUE;
2830}
2831
2832OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream,
2833 opj_jp2_t *jp2,
2834 opj_image_t ** p_image,
2835 opj_event_mgr_t * p_manager
2836 )
2837{
2838 /* preconditions */
2839 assert(jp2 != 00);
2840 assert(p_stream != 00);
2841 assert(p_manager != 00);
2842
2843 /* customization of the validation */
2844 if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) {
2845 return OPJ_FALSE;
2846 }
2847
2848 /* customization of the encoding */
2849 if (! opj_jp2_setup_header_reading(jp2, p_manager)) {
2850 return OPJ_FALSE;
2851 }
2852
2853 /* validation of the parameters codec */
2854 if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) {
2855 return OPJ_FALSE;
2856 }
2857
2858 /* read header */
2859 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) {
2860 return OPJ_FALSE;
2861 }
2862 if (jp2->has_jp2h == 0) {
2863 opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n");
2864 return OPJ_FALSE;
2865 }
2866 if (jp2->has_ihdr == 0) {
2867 opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n");
2868 return OPJ_FALSE;
2869 }
2870
2871 return opj_j2k_read_header(p_stream,
2872 jp2->j2k,
2873 p_image,
2874 p_manager);
2875}
2876
2877static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
2878 opj_event_mgr_t * p_manager)
2879{
2880 /* preconditions */
2881 assert(jp2 != 00);
2882 assert(p_manager != 00);
2883
2884 if (! opj_procedure_list_add_procedure(jp2->m_validation_list,
2885 (opj_procedure)opj_jp2_default_validation, p_manager)) {
2886 return OPJ_FALSE;
2887 }
2888 /* DEVELOPER CORNER, add your custom validation procedure */
2889
2890 return OPJ_TRUE;
2891}
2892
2893static OPJ_BOOL opj_jp2_setup_decoding_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 OPJ_UNUSED(jp2);
2901 OPJ_UNUSED(p_manager);
2902
2903 /* DEVELOPER CORNER, add your custom validation procedure */
2904
2905 return OPJ_TRUE;
2906}
2907
2908static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
2909 opj_event_mgr_t * p_manager)
2910{
2911 /* preconditions */
2912 assert(jp2 != 00);
2913 assert(p_manager != 00);
2914
2915 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2916 (opj_procedure)opj_jp2_write_jp, p_manager)) {
2917 return OPJ_FALSE;
2918 }
2919 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2920 (opj_procedure)opj_jp2_write_ftyp, p_manager)) {
2921 return OPJ_FALSE;
2922 }
2923 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2924 (opj_procedure)opj_jp2_write_jp2h, p_manager)) {
2925 return OPJ_FALSE;
2926 }
2927 if (jp2->jpip_on) {
2928 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2929 (opj_procedure)opj_jpip_skip_iptr, p_manager)) {
2930 return OPJ_FALSE;
2931 }
2932 }
2933 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2934 (opj_procedure)opj_jp2_skip_jp2c, p_manager)) {
2935 return OPJ_FALSE;
2936 }
2937
2938 /* DEVELOPER CORNER, insert your custom procedures */
2939
2940 return OPJ_TRUE;
2941}
2942
2943static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
2944 opj_event_mgr_t * p_manager)
2945{
2946 /* preconditions */
2947 assert(jp2 != 00);
2948 assert(p_manager != 00);
2949
2950 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2951 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2952 return OPJ_FALSE;
2953 }
2954
2955 /* DEVELOPER CORNER, add your custom procedures */
2956
2957 return OPJ_TRUE;
2958}
2959
2960OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_t * p_jp2,
2961 OPJ_UINT32 * p_tile_index,
2962 OPJ_UINT32 * p_data_size,
2963 OPJ_INT32 * p_tile_x0,
2964 OPJ_INT32 * p_tile_y0,
2965 OPJ_INT32 * p_tile_x1,
2966 OPJ_INT32 * p_tile_y1,
2967 OPJ_UINT32 * p_nb_comps,
2968 OPJ_BOOL * p_go_on,
2969 opj_stream_private_t *p_stream,
2970 opj_event_mgr_t * p_manager
2971 )
2972{
2973 return opj_j2k_read_tile_header(p_jp2->j2k,
2974 p_tile_index,
2975 p_data_size,
2976 p_tile_x0, p_tile_y0,
2977 p_tile_x1, p_tile_y1,
2978 p_nb_comps,
2979 p_go_on,
2980 p_stream,
2981 p_manager);
2982}
2983
2984OPJ_BOOL opj_jp2_write_tile(opj_jp2_t *p_jp2,
2985 OPJ_UINT32 p_tile_index,
2986 OPJ_BYTE * p_data,
2987 OPJ_UINT32 p_data_size,
2988 opj_stream_private_t *p_stream,
2989 opj_event_mgr_t * p_manager
2990 )
2991
2992{
2993 return opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
2994 p_stream, p_manager);
2995}
2996
2997OPJ_BOOL opj_jp2_decode_tile(opj_jp2_t * p_jp2,
2998 OPJ_UINT32 p_tile_index,
2999 OPJ_BYTE * p_data,
3000 OPJ_UINT32 p_data_size,
3001 opj_stream_private_t *p_stream,
3002 opj_event_mgr_t * p_manager
3003 )
3004{
3005 return opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3006 p_stream, p_manager);
3007}
3008
3009void opj_jp2_destroy(opj_jp2_t *jp2)
3010{
3011 if (jp2) {
3012 /* destroy the J2K codec */
3013 opj_j2k_destroy(jp2->j2k);
3014 jp2->j2k = 00;
3015
3016 if (jp2->comps) {
3017 opj_free(jp2->comps);
3018 jp2->comps = 00;
3019 }
3020
3021 if (jp2->cl) {
3022 opj_free(jp2->cl);
3023 jp2->cl = 00;
3024 }
3025
3026 if (jp2->color.icc_profile_buf) {
3027 opj_free(jp2->color.icc_profile_buf);
3028 jp2->color.icc_profile_buf = 00;
3029 }
3030
3031 if (jp2->color.jp2_cdef) {
3032 if (jp2->color.jp2_cdef->info) {
3033 opj_free(jp2->color.jp2_cdef->info);
3034 jp2->color.jp2_cdef->info = NULL;
3035 }
3036
3037 opj_free(jp2->color.jp2_cdef);
3038 jp2->color.jp2_cdef = 00;
3039 }
3040
3041 if (jp2->color.jp2_pclr) {
3042 if (jp2->color.jp2_pclr->cmap) {
3043 opj_free(jp2->color.jp2_pclr->cmap);
3044 jp2->color.jp2_pclr->cmap = NULL;
3045 }
3046 if (jp2->color.jp2_pclr->channel_sign) {
3047 opj_free(jp2->color.jp2_pclr->channel_sign);
3048 jp2->color.jp2_pclr->channel_sign = NULL;
3049 }
3050 if (jp2->color.jp2_pclr->channel_size) {
3051 opj_free(jp2->color.jp2_pclr->channel_size);
3052 jp2->color.jp2_pclr->channel_size = NULL;
3053 }
3054 if (jp2->color.jp2_pclr->entries) {
3055 opj_free(jp2->color.jp2_pclr->entries);
3056 jp2->color.jp2_pclr->entries = NULL;
3057 }
3058
3059 opj_free(jp2->color.jp2_pclr);
3060 jp2->color.jp2_pclr = 00;
3061 }
3062
3063 if (jp2->m_validation_list) {
3064 opj_procedure_list_destroy(jp2->m_validation_list);
3065 jp2->m_validation_list = 00;
3066 }
3067
3068 if (jp2->m_procedure_list) {
3069 opj_procedure_list_destroy(jp2->m_procedure_list);
3070 jp2->m_procedure_list = 00;
3071 }
3072
3073 opj_free(jp2);
3074 }
3075}
3076
3077OPJ_BOOL opj_jp2_set_decoded_components(opj_jp2_t *p_jp2,
3078 OPJ_UINT32 numcomps,
3079 const OPJ_UINT32* comps_indices,
3080 opj_event_mgr_t * p_manager)
3081{
3082 return opj_j2k_set_decoded_components(p_jp2->j2k,
3083 numcomps, comps_indices,
3084 p_manager);
3085}
3086
3087OPJ_BOOL opj_jp2_set_decode_area(opj_jp2_t *p_jp2,
3088 opj_image_t* p_image,
3089 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
3090 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
3091 opj_event_mgr_t * p_manager
3092 )
3093{
3094 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y,
3095 p_end_x, p_end_y, p_manager);
3096}
3097
3098OPJ_BOOL opj_jp2_get_tile(opj_jp2_t *p_jp2,
3099 opj_stream_private_t *p_stream,
3100 opj_image_t* p_image,
3101 opj_event_mgr_t * p_manager,
3102 OPJ_UINT32 tile_index
3103 )
3104{
3105 if (!p_image) {
3106 return OPJ_FALSE;
3107 }
3108
3109 opj_event_msg(p_manager, EVT_WARNING,
3110 "JP2 box which are after the codestream will not be read by this function.\n");
3111
3112 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index)) {
3113 opj_event_msg(p_manager, EVT_ERROR,
3114 "Failed to decode the codestream in the JP2 file\n");
3115 return OPJ_FALSE;
3116 }
3117
3118 if (p_jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
3119 /* Bypass all JP2 component transforms */
3120 return OPJ_TRUE;
3121 }
3122
3123 if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
3124 return OPJ_FALSE;
3125 }
3126
3127 /* Set Image Color Space */
3128 if (p_jp2->enumcs == 16) {
3129 p_image->color_space = OPJ_CLRSPC_SRGB;
3130 } else if (p_jp2->enumcs == 17) {
3131 p_image->color_space = OPJ_CLRSPC_GRAY;
3132 } else if (p_jp2->enumcs == 18) {
3133 p_image->color_space = OPJ_CLRSPC_SYCC;
3134 } else if (p_jp2->enumcs == 24) {
3135 p_image->color_space = OPJ_CLRSPC_EYCC;
3136 } else if (p_jp2->enumcs == 12) {
3137 p_image->color_space = OPJ_CLRSPC_CMYK;
3138 } else {
3139 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
3140 }
3141
3142 if (p_jp2->color.jp2_pclr) {
3143 /* Part 1, I.5.3.4: Either both or none : */
3144 if (!p_jp2->color.jp2_pclr->cmap) {
3145 opj_jp2_free_pclr(&(p_jp2->color));
3146 } else {
3147 if (!opj_jp2_apply_pclr(p_image, &(p_jp2->color), p_manager)) {
3148 return OPJ_FALSE;
3149 }
3150 }
3151 }
3152
3153 /* Apply the color space if needed */
3154 if (p_jp2->color.jp2_cdef) {
3155 opj_jp2_apply_cdef(p_image, &(p_jp2->color), p_manager);
3156 }
3157
3158 if (p_jp2->color.icc_profile_buf) {
3159 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
3160 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
3161 p_jp2->color.icc_profile_buf = NULL;
3162 }
3163
3164 return OPJ_TRUE;
3165}
3166
3167/* ----------------------------------------------------------------------- */
3168/* JP2 encoder interface */
3169/* ----------------------------------------------------------------------- */
3170
3171opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
3172{
3173 opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1, sizeof(opj_jp2_t));
3174 if (jp2) {
3175
3176 /* create the J2K codec */
3177 if (! p_is_decoder) {
3178 jp2->j2k = opj_j2k_create_compress();
3179 } else {
3180 jp2->j2k = opj_j2k_create_decompress();
3181 }
3182
3183 if (jp2->j2k == 00) {
3184 opj_jp2_destroy(jp2);
3185 return 00;
3186 }
3187
3188 /* Color structure */
3189 jp2->color.icc_profile_buf = NULL;
3190 jp2->color.icc_profile_len = 0;
3191 jp2->color.jp2_cdef = NULL;
3192 jp2->color.jp2_pclr = NULL;
3193 jp2->color.jp2_has_colr = 0;
3194
3195 /* validation list creation */
3196 jp2->m_validation_list = opj_procedure_list_create();
3197 if (! jp2->m_validation_list) {
3198 opj_jp2_destroy(jp2);
3199 return 00;
3200 }
3201
3202 /* execution list creation */
3203 jp2->m_procedure_list = opj_procedure_list_create();
3204 if (! jp2->m_procedure_list) {
3205 opj_jp2_destroy(jp2);
3206 return 00;
3207 }
3208 }
3209
3210 return jp2;
3211}
3212
3213void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
3214{
3215 /* preconditions */
3216 assert(p_jp2 != 00);
3217
3218 j2k_dump(p_jp2->j2k,
3219 flag,
3220 out_stream);
3221}
3222
3223opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
3224{
3225 return j2k_get_cstr_index(p_jp2->j2k);
3226}
3227
3228opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
3229{
3230 return j2k_get_cstr_info(p_jp2->j2k);
3231}
3232
3233OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
3234 OPJ_UINT32 res_factor,
3235 opj_event_mgr_t * p_manager)
3236{
3237 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
3238}
3239
3240/* JPIP specific */
3241
3242#ifdef USE_JPIP
3243static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
3244 opj_stream_private_t *cio,
3245 opj_event_mgr_t * p_manager)
3246{
3247 OPJ_OFF_T j2k_codestream_exit;
3248 OPJ_BYTE l_data_header [24];
3249
3250 /* preconditions */
3251 assert(jp2 != 00);
3252 assert(cio != 00);
3253 assert(p_manager != 00);
3254 assert(opj_stream_has_seek(cio));
3255
3256 j2k_codestream_exit = opj_stream_tell(cio);
3257 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3258 opj_write_bytes(l_data_header + 4, JPIP_IPTR,
3259 4); /* IPTR */
3260#if 0
3261 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3262 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3263#else
3264 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3265 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3266#endif
3267
3268 if (! opj_stream_seek(cio, jp2->jpip_iptr_offset, p_manager)) {
3269 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3270 return OPJ_FALSE;
3271 }
3272
3273 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3274 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3275 return OPJ_FALSE;
3276 }
3277
3278 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3279 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3280 return OPJ_FALSE;
3281 }
3282
3283 return OPJ_TRUE;
3284}
3285
3286static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
3287 opj_stream_private_t *cio,
3288 opj_event_mgr_t * p_manager)
3289{
3290 OPJ_OFF_T j2k_codestream_exit;
3291 OPJ_BYTE l_data_header [24];
3292
3293 OPJ_UNUSED(jp2);
3294
3295 /* preconditions */
3296 assert(jp2 != 00);
3297 assert(cio != 00);
3298 assert(p_manager != 00);
3299 assert(opj_stream_has_seek(cio));
3300
3301 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3302 opj_write_bytes(l_data_header + 4, JPIP_FIDX,
3303 4); /* IPTR */
3304 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3305 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3306
3307 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3308 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3309 return OPJ_FALSE;
3310 }
3311
3312 j2k_codestream_exit = opj_stream_tell(cio);
3313 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3314 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3315 return OPJ_FALSE;
3316 }
3317
3318 return OPJ_TRUE;
3319}
3320
3321static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
3322 opj_stream_private_t *cio,
3323 opj_event_mgr_t * p_manager)
3324{
3325 OPJ_OFF_T j2k_codestream_exit;
3326 OPJ_BYTE l_data_header [24];
3327
3328 OPJ_UNUSED(jp2);
3329
3330 /* preconditions */
3331 assert(jp2 != 00);
3332 assert(cio != 00);
3333 assert(p_manager != 00);
3334 assert(opj_stream_has_seek(cio));
3335
3336 j2k_codestream_exit = opj_stream_tell(cio);
3337 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3338 opj_write_bytes(l_data_header + 4, JPIP_CIDX,
3339 4); /* IPTR */
3340#if 0
3341 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3342 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3343#else
3344 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3345 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3346#endif
3347
3348 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3349 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3350 return OPJ_FALSE;
3351 }
3352
3353 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3354 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3355 return OPJ_FALSE;
3356 }
3357
3358 j2k_codestream_exit = opj_stream_tell(cio);
3359 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3360 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3361 return OPJ_FALSE;
3362 }
3363
3364 return OPJ_TRUE;
3365}
3366
3367#if 0
3368static void write_prxy(int offset_jp2c, int length_jp2c, int offset_idx,
3369 int length_idx, opj_stream_private_t *cio,
3370 opj_event_mgr_t * p_manager)
3371{
3372 OPJ_BYTE l_data_header [8];
3373 OPJ_OFF_T len, lenp;
3374
3375 lenp = opj_stream_tell(cio);
3376 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
3377 opj_write_bytes(l_data_header, JPIP_PRXY, 4); /* IPTR */
3378 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3379
3380 opj_write_bytes(l_data_header, offset_jp2c, 8); /* OOFF */
3381 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3382 opj_write_bytes(l_data_header, length_jp2c, 4); /* OBH part 1 */
3383 opj_write_bytes(l_data_header + 4, JP2_JP2C, 4); /* OBH part 2 */
3384 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3385
3386 opj_write_bytes(l_data_header, 1, 1); /* NI */
3387 opj_stream_write_data(cio, l_data_header, 1, p_manager);
3388
3389 opj_write_bytes(l_data_header, offset_idx, 8); /* IOFF */
3390 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3391 opj_write_bytes(l_data_header, length_idx, 4); /* IBH part 1 */
3392 opj_write_bytes(l_data_header + 4, JPIP_CIDX, 4); /* IBH part 2 */
3393 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3394
3395 len = opj_stream_tell(cio) - lenp;
3396 opj_stream_skip(cio, lenp, p_manager);
3397 opj_write_bytes(l_data_header, len, 4); /* L */
3398 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3399 opj_stream_seek(cio, lenp + len, p_manager);
3400}
3401#endif
3402
3403
3404#if 0
3405static int write_fidx(int offset_jp2c, int length_jp2c, int offset_idx,
3406 int length_idx, opj_stream_private_t *cio,
3407 opj_event_mgr_t * p_manager)
3408{
3409 OPJ_BYTE l_data_header [4];
3410 OPJ_OFF_T len, lenp;
3411
3412 lenp = opj_stream_tell(cio);
3413 opj_stream_skip(cio, 4, p_manager);
3414 opj_write_bytes(l_data_header, JPIP_FIDX, 4); /* FIDX */
3415 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3416
3417 write_prxy(offset_jp2c, length_jp2c, offset_idx, length_idx, cio, p_manager);
3418
3419 len = opj_stream_tell(cio) - lenp;
3420 opj_stream_skip(cio, lenp, p_manager);
3421 opj_write_bytes(l_data_header, len, 4); /* L */
3422 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3423 opj_stream_seek(cio, lenp + len, p_manager);
3424
3425 return len;
3426}
3427#endif
3428#endif /* USE_JPIP */
3429