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