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