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jpc_cs.h
1/*
2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
3 * British Columbia.
4 * Copyright (c) 2001-2002 Michael David Adams.
5 * All rights reserved.
6 */
7
8/* __START_OF_JASPER_LICENSE__
9 *
10 * JasPer License Version 2.0
11 *
12 * Copyright (c) 2001-2006 Michael David Adams
13 * Copyright (c) 1999-2000 Image Power, Inc.
14 * Copyright (c) 1999-2000 The University of British Columbia
15 *
16 * All rights reserved.
17 *
18 * Permission is hereby granted, free of charge, to any person (the
19 * "User") obtaining a copy of this software and associated documentation
20 * files (the "Software"), to deal in the Software without restriction,
21 * including without limitation the rights to use, copy, modify, merge,
22 * publish, distribute, and/or sell copies of the Software, and to permit
23 * persons to whom the Software is furnished to do so, subject to the
24 * following conditions:
25 *
26 * 1. The above copyright notices and this permission notice (which
27 * includes the disclaimer below) shall be included in all copies or
28 * substantial portions of the Software.
29 *
30 * 2. The name of a copyright holder shall not be used to endorse or
31 * promote products derived from the Software without specific prior
32 * written permission.
33 *
34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
60 *
61 * __END_OF_JASPER_LICENSE__
62 */
63
64/*
65 * JPEG-2000 Code Stream Library
66 *
67 * $Id$
68 */
69
70#ifndef JPC_CS_H
71#define JPC_CS_H
72
73/******************************************************************************\
74* Includes.
75\******************************************************************************/
76
77#include "jasper/jas_stream.h"
78
79#include <assert.h>
80#include <stdio.h>
81
82/******************************************************************************\
83* Constants and Types.
84\******************************************************************************/
85
86/* The maximum number of resolution levels. */
87#define JPC_MAXRLVLS 33
88
89/* The maximum number of bands. */
90#define JPC_MAXBANDS (3 * JPC_MAXRLVLS + 1)
91
92/* The maximum number of layers. */
93#define JPC_MAXLYRS 16384
94
95/**************************************\
96* Code stream.
97\**************************************/
98
99/*
100 * Code stream states.
101 */
102
103/* Initial. */
104#define JPC_CS_INIT 0
105/* Main header. */
106#define JPC_CS_MHDR 1
107/* Tile-part header. */
108#define JPC_CS_THDR 2
109/* Main trailer. */
110#define JPC_CS_MTLR 3
111/* Tile-part data. */
112#define JPC_CS_TDATA 4
113
114/*
115 * Unfortunately, the code stream syntax was not designed in such a way that
116 * any given marker segment can be correctly decoded without additional state
117 * derived from previously decoded marker segments.
118 * For example, a RGN/COC/QCC marker segment cannot be decoded unless the
119 * number of components is known.
120 */
121
122/*
123 * Code stream state information.
124 */
125
126 typedef struct {
127
128 /* The number of components. */
129 uint_fast16_t numcomps;
130
131} jpc_cstate_t;
132
133/**************************************\
134* SOT marker segment parameters.
135\**************************************/
136
137 typedef struct {
138
139 /* The tile number. */
140 uint_fast16_t tileno;
141
142 /* The combined length of the marker segment and its auxilary data
143 (i.e., packet data). */
144 uint_fast32_t len;
145
146 /* The tile-part instance. */
147 uint_fast8_t partno;
148
149 /* The number of tile-parts. */
150 uint_fast8_t numparts;
151
152} jpc_sot_t;
153
154/**************************************\
155* SIZ marker segment parameters.
156\**************************************/
157
158/* Per component information. */
159
160 typedef struct {
161
162 /* The precision of the samples. */
163 uint_fast8_t prec;
164
165 /* The signedness of the samples. */
166 uint_fast8_t sgnd;
167
168 /* The horizontal separation of samples with respect to the reference
169 grid. */
170 uint_fast8_t hsamp;
171
172 /* The vertical separation of samples with respect to the reference
173 grid. */
174 uint_fast8_t vsamp;
175
176} jpc_sizcomp_t;
177
178/* SIZ marker segment parameters. */
179
180 typedef struct {
181
182 /* The code stream capabilities. */
183 uint_fast16_t caps;
184
185 /* The width of the image in units of the reference grid. */
186 uint_fast32_t width;
187
188 /* The height of the image in units of the reference grid. */
189 uint_fast32_t height;
190
191 /* The horizontal offset from the origin of the reference grid to the
192 left side of the image area. */
193 uint_fast32_t xoff;
194
195 /* The vertical offset from the origin of the reference grid to the
196 top side of the image area. */
197 uint_fast32_t yoff;
198
199 /* The nominal width of a tile in units of the reference grid. */
200 uint_fast32_t tilewidth;
201
202 /* The nominal height of a tile in units of the reference grid. */
203 uint_fast32_t tileheight;
204
205 /* The horizontal offset from the origin of the reference grid to the
206 left side of the first tile. */
207 uint_fast32_t tilexoff;
208
209 /* The vertical offset from the origin of the reference grid to the
210 top side of the first tile. */
211 uint_fast32_t tileyoff;
212
213 /* The number of components. */
214 uint_fast16_t numcomps;
215
216 /* The per-component information. */
217 jpc_sizcomp_t *comps;
218
219} jpc_siz_t;
220
221/**************************************\
222* COD marker segment parameters.
223\**************************************/
224
225/*
226 * Coding style constants.
227 */
228
229/* Precincts may be used. */
230#define JPC_COX_PRT 0x01
231/* SOP marker segments may be used. */
232#define JPC_COD_SOP 0x02
233/* EPH marker segments may be used. */
234#define JPC_COD_EPH 0x04
235
236/*
237 * Progression order constants.
238 */
239
240/* Layer-resolution-component-precinct progressive
241 (i.e., progressive by fidelity). */
242#define JPC_COD_LRCPPRG 0
243/* Resolution-layer-component-precinct progressive
244 (i.e., progressive by resolution). */
245#define JPC_COD_RLCPPRG 1
246/* Resolution-precinct-component-layer progressive. */
247#define JPC_COD_RPCLPRG 2
248/* Precinct-component-resolution-layer progressive. */
249#define JPC_COD_PCRLPRG 3
250/* Component-position-resolution-layer progressive. */
251#define JPC_COD_CPRLPRG 4
252
253/*
254 * Code block style constants.
255 */
256
257#define JPC_COX_LAZY 0x01 /* Selective arithmetic coding bypass. */
258#define JPC_COX_RESET 0x02 /* Reset context probabilities. */
259#define JPC_COX_TERMALL 0x04 /* Terminate all coding passes. */
260#define JPC_COX_VSC 0x08 /* Vertical stripe causal context formation. */
261#define JPC_COX_PTERM 0x10 /* Predictable termination. */
262#define JPC_COX_SEGSYM 0x20 /* Use segmentation symbols. */
263
264/* Transform constants. */
265#define JPC_COX_INS 0x00 /* Irreversible 9/7. */
266#define JPC_COX_RFT 0x01 /* Reversible 5/3. */
267
268/* Multicomponent transform constants. */
269#define JPC_COD_NOMCT 0x00 /* No multicomponent transform. */
270#define JPC_COD_MCT 0x01 /* Multicomponent transform. */
271
272/* Get the code block size value from the code block size exponent. */
273JAS_ATTRIBUTE_CONST
274 static inline unsigned JPC_COX_CBLKSIZEEXPN(unsigned x)
275{
276 return x - 2;
277}
278
279/* Get the code block size exponent from the code block size value. */
280JAS_ATTRIBUTE_CONST
281 static inline unsigned JPC_COX_GETCBLKSIZEEXPN(unsigned x)
282{
283 return x + 2;
284}
285
286/* Per resolution-level information. */
287
288 typedef struct {
289
290 /* The packet partition width. */
291 uint_fast8_t parwidthval;
292
293 /* The packet partition height. */
294 uint_fast8_t parheightval;
295
296} jpc_coxrlvl_t;
297
298/* Per component information. */
299
300 typedef struct {
301
302 /* The coding style. */
303 uint_fast8_t csty;
304
305 /* The number of decomposition levels. */
306 uint_fast8_t numdlvls;
307
308 /* The nominal code block width specifier. */
309 uint_fast8_t cblkwidthval;
310
311 /* The nominal code block height specifier. */
312 uint_fast8_t cblkheightval;
313
314 /* The style of coding passes. */
315 uint_fast8_t cblksty;
316
317 /* The QMFB employed. */
318 uint_fast8_t qmfbid;
319
320 /* The number of resolution levels. */
321 int numrlvls;
322
323 /* The per-resolution-level information. */
324 jpc_coxrlvl_t rlvls[JPC_MAXRLVLS];
325
326} jpc_coxcp_t;
327
328/* COD marker segment parameters. */
329
330 typedef struct {
331
332 /* The general coding style. */
333 uint_fast8_t csty;
334
335 /* The progression order. */
336 uint_fast8_t prg;
337
338 /* The number of layers. */
339 uint_fast16_t numlyrs;
340
341 /* The multicomponent transform. */
342 uint_fast8_t mctrans;
343
344 /* Component-related parameters. */
345 jpc_coxcp_t compparms;
346
347} jpc_cod_t;
348
349/* COC marker segment parameters. */
350
351 typedef struct {
352
353 /* The component number. */
354 uint_fast16_t compno;
355
356 /* Component-related parameters. */
357 jpc_coxcp_t compparms;
358
359} jpc_coc_t;
360
361/**************************************\
362* RGN marker segment parameters.
363\**************************************/
364
365/* The maxshift ROI style. */
366#define JPC_RGN_MAXSHIFT 0x00
367
368 typedef struct {
369
370 /* The component to which the marker applies. */
371 uint_fast16_t compno;
372
373 /* The ROI style. */
374 uint_fast8_t roisty;
375
376 /* The ROI shift value. */
377 uint_fast8_t roishift;
378
379} jpc_rgn_t;
380
381/**************************************\
382* QCD/QCC marker segment parameters.
383\**************************************/
384
385/*
386 * Quantization style constants.
387 */
388
389#define JPC_QCX_NOQNT 0 /* No quantization. */
390#define JPC_QCX_SIQNT 1 /* Scalar quantization, implicit. */
391#define JPC_QCX_SEQNT 2 /* Scalar quantization, explicit. */
392
393/*
394 * Stepsize manipulation macros.
395 */
396
397JAS_ATTRIBUTE_CONST
398 static inline unsigned JPC_QCX_GETEXPN(unsigned x)
399{
400 return x >> 11;
401}
402
403JAS_ATTRIBUTE_CONST
404 static inline unsigned JPC_QCX_GETMANT(unsigned x)
405{
406 return x & 0x7ff;
407}
408
409JAS_ATTRIBUTE_CONST
410 static inline uint_fast16_t JPC_QCX_EXPN(unsigned x)
411{
412 assert(!(x & (~0x1f)));
413
414 return (x & 0x1f) << 11;
415}
416
417JAS_ATTRIBUTE_CONST
418 static inline uint_fast16_t JPC_QCX_MANT(unsigned x)
419{
420 assert(!(x & (~0x7ff)));
421
422 return x & 0x7ff;
423}
424
425/* Per component information. */
426
427 typedef struct {
428
429 /* The quantization style. */
430 uint_fast8_t qntsty;
431
432 /* The number of step sizes. */
433 int numstepsizes;
434
435 /* The step sizes. */
436 uint_fast16_t *stepsizes;
437
438 /* The number of guard bits. */
439 uint_fast8_t numguard;
440
441} jpc_qcxcp_t;
442
443/* QCC marker segment parameters. */
444
445 typedef struct {
446
447 /* The component associated with this marker segment. */
448 uint_fast16_t compno;
449
450 /* The parameters. */
451 jpc_qcxcp_t compparms;
452
453} jpc_qcc_t;
454
455/* QCD marker segment parameters. */
456
457 typedef struct {
458
459 /* The parameters. */
460 jpc_qcxcp_t compparms;
461
462} jpc_qcd_t;
463
464/**************************************\
465* POD marker segment parameters.
466\**************************************/
467
468 typedef struct {
469
470 /* The progression order. */
471 uint_fast8_t prgord;
472
473 /* The lower bound (inclusive) on the resolution level for the
474 progression order volume. */
475 uint_fast8_t rlvlnostart;
476
477 /* The upper bound (exclusive) on the resolution level for the
478 progression order volume. */
479 uint_fast8_t rlvlnoend;
480
481 /* The lower bound (inclusive) on the component for the progression
482 order volume. */
483 uint_fast16_t compnostart;
484
485 /* The upper bound (exclusive) on the component for the progression
486 order volume. */
487 uint_fast16_t compnoend;
488
489 /* The upper bound (exclusive) on the layer for the progression
490 order volume. */
491 uint_fast16_t lyrnoend;
492
493} jpc_pocpchg_t;
494
495/* An alias for the above type. */
496 typedef jpc_pocpchg_t jpc_pchg_t;
497
498/* POC marker segment parameters. */
499
500 typedef struct {
501
502 /* The number of progression order changes. */
503 int numpchgs;
504
505 /* The per-progression-order-change information. */
506 jpc_pocpchg_t *pchgs;
507
508} jpc_poc_t;
509
510/**************************************\
511* PPM/PPT marker segment parameters.
512\**************************************/
513
514/* PPM marker segment parameters. */
515
516 typedef struct {
517
518 /* The index. */
519 uint_fast8_t ind;
520
521 /* The length. */
522 uint_fast16_t len;
523
524 /* The data. */
525 jas_uchar *data;
526
527} jpc_ppm_t;
528
529/* PPT marker segment parameters. */
530
531 typedef struct {
532
533 /* The index. */
534 uint_fast8_t ind;
535
536 /* The length. */
537 uint_fast32_t len;
538
539 /* The data. */
540 unsigned char *data;
541
542} jpc_ppt_t;
543
544/**************************************\
545* COM marker segment parameters.
546\**************************************/
547
548/*
549 * Registration IDs.
550 */
551
552#define JPC_COM_BIN 0x00
553#define JPC_COM_LATIN 0x01
554
555 typedef struct {
556
557 /* The registration ID. */
558 uint_fast16_t regid;
559
560 /* The length of the data in bytes. */
561 uint_fast16_t len;
562
563 /* The data. */
564 jas_uchar *data;
565
566} jpc_com_t;
567
568/**************************************\
569* SOP marker segment parameters.
570\**************************************/
571
572 typedef struct {
573
574 /* The sequence number. */
575 uint_fast16_t seqno;
576
577} jpc_sop_t;
578
579/**************************************\
580* CRG marker segment parameters.
581\**************************************/
582
583/* Per component information. */
584
585 typedef struct {
586
587 /* The horizontal offset. */
588 uint_fast16_t hoff;
589
590 /* The vertical offset. */
591 uint_fast16_t voff;
592
593} jpc_crgcomp_t;
594
595 typedef struct {
596
597 /* The number of components. */
598 int numcomps;
599
600 /* Per component information. */
601 jpc_crgcomp_t *comps;
602
603} jpc_crg_t;
604
605/**************************************\
606* Marker segment parameters for unknown marker type.
607\**************************************/
608
609 typedef struct {
610
611 /* The data. */
612 jas_uchar *data;
613
614 /* The length. */
615 uint_fast16_t len;
616
617} jpc_unk_t;
618
619/**************************************\
620* Generic marker segment parameters.
621\**************************************/
622
623 typedef union {
624 int soc; /* unused */
625 jpc_sot_t sot;
626 int sod; /* unused */
627 int eoc; /* unused */
628 jpc_siz_t siz;
629 jpc_cod_t cod;
630 jpc_coc_t coc;
631 jpc_rgn_t rgn;
632 jpc_qcd_t qcd;
633 jpc_qcc_t qcc;
634 jpc_poc_t poc;
635 /* jpc_plm_t plm; */
636 /* jpc_plt_t plt; */
637 jpc_ppm_t ppm;
638 jpc_ppt_t ppt;
639 jpc_sop_t sop;
640 int eph; /* unused */
641 jpc_com_t com;
642 jpc_crg_t crg;
643 jpc_unk_t unk;
644} jpc_msparms_t;
645
646/**************************************\
647* Marker segment.
648\**************************************/
649
650/* Marker segment IDs. */
651
652/* The smallest valid marker value. */
653#define JPC_MS_MIN 0xff00
654
655/* The largest valid marker value. */
656#define JPC_MS_MAX 0xffff
657
658/* The minimum marker value that cannot occur within packet data. */
659#define JPC_MS_INMIN 0xff80
660/* The maximum marker value that cannot occur within packet data. */
661#define JPC_MS_INMAX 0xffff
662
663/* Delimiting marker segments. */
664#define JPC_MS_SOC 0xff4f /* Start of code stream (SOC). */
665#define JPC_MS_SOT 0xff90 /* Start of tile-part (SOT). */
666#define JPC_MS_SOD 0xff93 /* Start of data (SOD). */
667#define JPC_MS_EOC 0xffd9 /* End of code stream (EOC). */
668
669/* Fixed information marker segments. */
670#define JPC_MS_SIZ 0xff51 /* Image and tile size (SIZ). */
671
672/* Functional marker segments. */
673#define JPC_MS_COD 0xff52 /* Coding style default (COD). */
674#define JPC_MS_COC 0xff53 /* Coding style component (COC). */
675#define JPC_MS_RGN 0xff5e /* Region of interest (RGN). */
676#define JPC_MS_QCD 0xff5c /* Quantization default (QCD). */
677#define JPC_MS_QCC 0xff5d /* Quantization component (QCC). */
678#define JPC_MS_POC 0xff5f /* Progression order default (POC). */
679
680/* Pointer marker segments. */
681#define JPC_MS_TLM 0xff55 /* Tile-part lengths, main header (TLM). */
682#define JPC_MS_PLM 0xff57 /* Packet length, main header (PLM). */
683#define JPC_MS_PLT 0xff58 /* Packet length, tile-part header (PLT). */
684#define JPC_MS_PPM 0xff60 /* Packed packet headers, main header (PPM). */
685#define JPC_MS_PPT 0xff61 /* Packet packet headers, tile-part header (PPT). */
686
687/* In bit stream marker segments. */
688#define JPC_MS_SOP 0xff91 /* Start of packet (SOP). */
689#define JPC_MS_EPH 0xff92 /* End of packet header (EPH). */
690
691/* Informational marker segments. */
692#define JPC_MS_CRG 0xff63 /* Component registration (CRG). */
693#define JPC_MS_COM 0xff64 /* Comment (COM). */
694
695/* Forward declaration. */
696 struct jpc_msops_s;
697
698/* Generic marker segment class. */
699
700 typedef struct {
701
702 /* The type of marker segment. */
703 uint_fast16_t id;
704
705 /* The length of the marker segment. */
706 uint_fast16_t len;
707
708 /* The starting offset within the stream. */
709 uint_fast32_t off;
710
711 /* The parameters of the marker segment. */
712 jpc_msparms_t parms;
713
714 /* The marker segment operations. */
715 const struct jpc_msops_s *ops;
716
717} jpc_ms_t;
718
719/* Marker segment operations (which depend on the marker segment type). */
720
721 typedef struct jpc_msops_s {
722
723 /* Destroy the marker segment parameters. */
724 void (*destroyparms)(jpc_ms_t *ms);
725
726 /* Get the marker segment parameters from a stream. */
727 int (*getparms)(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
728
729 /* Put the marker segment parameters to a stream. */
730 int (*putparms)(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
731
732 /* Dump the marker segment parameters (for debugging). */
733 int (*dumpparms)(jpc_ms_t *ms);
734
735} jpc_msops_t;
736
737/******************************************************************************\
738* Macros/Functions.
739\******************************************************************************/
740
741/* Create a code-stream state object. */
742jpc_cstate_t *jpc_cstate_create(void);
743
744/* Destroy a code-stream state object. */
745 void jpc_cstate_destroy(jpc_cstate_t *cstate);
746
747/* Create a marker segment. */
748jpc_ms_t *jpc_ms_create(int type);
749
750/* Destroy a marker segment. */
751 void jpc_ms_destroy(jpc_ms_t *ms);
752
753/* Does a marker segment have parameters? */
754JAS_ATTRIBUTE_CONST
755 static inline bool JPC_MS_HASPARMS(unsigned x)
756{
757 return !(x == JPC_MS_SOC || x == JPC_MS_SOD || x == JPC_MS_EOC ||
758 x == JPC_MS_EPH || (x >= 0xff30 && x <= 0xff3f));
759}
760
761/* Get the marker segment type. */
762JAS_ATTRIBUTE_PURE
763 static inline unsigned jpc_ms_gettype(const jpc_ms_t *ms)
764{
765 return ms->id;
766}
767
768/* Read a marker segment from a stream. */
769jpc_ms_t *jpc_getms(jas_stream_t *in, jpc_cstate_t *cstate);
770
771/* Write a marker segment to a stream. */
772 int jpc_putms(jas_stream_t *out, jpc_cstate_t *cstate, jpc_ms_t *ms);
773
774/* Copy code stream data from one stream to another. */
775 int jpc_getdata(jas_stream_t *in, jas_stream_t *out, long n);
776
777/* Copy code stream data from one stream to another. */
778 int jpc_putdata(jas_stream_t *out, jas_stream_t *in, long n);
779
780/* Dump a marker segment (for debugging). */
781 void jpc_ms_dump(jpc_ms_t *ms);
782
783/* Read a 8-bit unsigned integer from a stream. */
784 int jpc_getuint8(jas_stream_t *in, uint_fast8_t *val);
785
786/* Read a 16-bit unsigned integer from a stream. */
787 int jpc_getuint16(jas_stream_t *in, uint_fast16_t *val);
788
789/* Read a 32-bit unsigned integer from a stream. */
790 int jpc_getuint32(jas_stream_t *in, uint_fast32_t *val);
791
792/* Write a 8-bit unsigned integer to a stream. */
793 int jpc_putuint8(jas_stream_t *out, uint_fast8_t val);
794
795/* Write a 16-bit unsigned integer to a stream. */
796 int jpc_putuint16(jas_stream_t *out, uint_fast16_t val);
797
798/* Write a 32-bit unsigned integer to a stream. */
799 int jpc_putuint32(jas_stream_t *out, uint_fast32_t val);
800
801#endif
jas_stream.h
I/O Stream Class.
jas_stream_t
I/O stream object.
Definition jas_stream.h:206