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