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jas_seq.h
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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,
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44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
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47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
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50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
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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,
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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
69#ifndef JAS_SEQ_H
70#define JAS_SEQ_H
71
72/******************************************************************************\
73* Includes.
74\******************************************************************************/
75
76/* The configuration header file should be included first. */
77#include <jasper/jas_config.h> /* IWYU pragma: keep */
78
79#include <jasper/jas_types.h>
80#include <jasper/jas_fix.h>
81#include <jasper/jas_math.h>
82
83#include <stdio.h>
84
85#ifdef __cplusplus
86 extern "C" {
87#endif
88
94/******************************************************************************\
95* Constants.
96\******************************************************************************/
97
98/* This matrix is a reference to another matrix. */
99#define JAS_MATRIX_REF 0x0001
100
101/******************************************************************************\
102* Types.
103\******************************************************************************/
104
105/* An element in a sequence. */
106 typedef jas_fix_t jas_seqent_t;
107#define PRIjas_seqent PRIjas_fix
108
109/* An element in a matrix. */
110 typedef jas_fix_t jas_matent_t;
111
112 typedef jas_fix_t jas_matind_t;
113
117 typedef struct {
118
119 /* Additional state information. */
120 int flags_;
121
122 /* The starting horizontal index. */
123 jas_matind_t xstart_;
124
125 /* The starting vertical index. */
126 jas_matind_t ystart_;
127
128 /* The ending horizontal index. */
129 jas_matind_t xend_;
130
131 /* The ending vertical index. */
132 jas_matind_t yend_;
133
134 /* The number of rows in the matrix. */
135 jas_matind_t numrows_;
136
137 /* The number of columns in the matrix. */
138 jas_matind_t numcols_;
139
140 /* Pointers to the start of each row. */
141 jas_seqent_t **rows_;
142
143 /* The allocated size of the rows array. */
144 int_fast32_t maxrows_;
145
146 /* The matrix data buffer. */
147 jas_seqent_t *data_;
148
149 /* The allocated size of the data array. */
150 int_fast32_t datasize_;
151
152} jas_matrix_t;
153
158 typedef jas_matrix_t jas_seq2d_t;
159
164 typedef jas_matrix_t jas_seq_t;
165
166/******************************************************************************\
167* Functions/macros for matrix class.
168\******************************************************************************/
169
174JAS_ATTRIBUTE_PURE
175 static inline jas_matind_t jas_matrix_numrows(const jas_matrix_t *matrix)
176{
177 return matrix->numrows_;
178}
179
183JAS_ATTRIBUTE_PURE
184 static inline jas_matind_t jas_matrix_numcols(const jas_matrix_t *matrix)
185{
186 return matrix->numcols_;
187}
188
193JAS_ATTRIBUTE_PURE
194 static inline jas_matind_t jas_matrix_size(const jas_matrix_t *matrix)
195{
196 return jas_matrix_numcols(matrix) * jas_matrix_numrows(matrix);
197}
198
203JAS_ATTRIBUTE_PURE
204 static inline bool jas_matrix_empty(const jas_matrix_t *matrix)
205{
206 return jas_matrix_numcols(matrix) == 0 || jas_matrix_numrows(matrix) == 0;
207}
208
213JAS_ATTRIBUTE_PURE
214 static inline jas_seqent_t jas_matrix_get(const jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j)
215{
216 assert(i >= 0 && i < matrix->numrows_ && j >= 0 && j < matrix->numcols_);
217 return matrix->rows_[i][j];
218}
219
224 static inline void jas_matrix_set(jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j, jas_seqent_t v)
225{
226 assert(i >= 0 && i < matrix->numrows_ && j >= 0 && j < matrix->numcols_);
227 matrix->rows_[i][j] = v;
228}
229
234JAS_ATTRIBUTE_PURE
235 static inline jas_seqent_t jas_matrix_getv(const jas_matrix_t *matrix, jas_matind_t i)
236{
237 return matrix->numrows_ == 1
238 ? matrix->rows_[0][i]
239 : matrix->rows_[i][0];
240}
241
246 static inline void jas_matrix_setv(jas_matrix_t *matrix, jas_matind_t i, jas_seqent_t v)
247{
248 if (matrix->numrows_ == 1)
249 matrix->rows_[0][i] = v;
250 else
251 matrix->rows_[i][0] = v;
252}
253
258JAS_ATTRIBUTE_PURE
259 static inline jas_seqent_t *jas_matrix_getref(const jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j)
260{
261 return &matrix->rows_[i][j];
262}
263
268JAS_ATTRIBUTE_PURE
269 static inline jas_seqent_t *jas_matrix_getvref(const jas_matrix_t *matrix, jas_matind_t i)
270{
271 return matrix->numrows_ > 1
272 ? jas_matrix_getref(matrix, i, 0)
273 : jas_matrix_getref(matrix, 0, i);
274}
275
280JAS_EXPORT
281 jas_matrix_t *jas_matrix_create(jas_matind_t numrows, jas_matind_t numcols);
282
287JAS_EXPORT
288 void jas_matrix_destroy(jas_matrix_t *matrix);
289
294JAS_EXPORT
295 int jas_matrix_resize(jas_matrix_t *matrix, jas_matind_t numrows, jas_matind_t numcols);
296
301JAS_EXPORT
302 int jas_matrix_output(jas_matrix_t *matrix, FILE *out);
303
308JAS_EXPORT
309 int jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t r0,
310 jas_matind_t c0, jas_matind_t r1, jas_matind_t c1);
311
316 static inline int jas_matrix_bindrow(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t r)
317{
318 return jas_matrix_bindsub(mat0, mat1, r, 0, r, mat1->numcols_ - 1);
319}
320
325 static inline int jas_matrix_bindcol(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t c)
326{
327 return jas_matrix_bindsub(mat0, mat1, 0, c, mat1->numrows_ - 1, c);
328}
329
334JAS_EXPORT
335 void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval,
336 jas_seqent_t maxval);
337
342JAS_EXPORT
343 void jas_matrix_asl(jas_matrix_t *matrix, unsigned n);
344
349JAS_EXPORT
350 void jas_matrix_asr(jas_matrix_t *matrix, unsigned n);
351
356JAS_EXPORT
357 void jas_matrix_divpow2(jas_matrix_t *matrix, unsigned n);
358
363JAS_EXPORT
364 void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val);
365
370JAS_ATTRIBUTE_PURE
371 static inline size_t jas_matrix_rowstep(const jas_matrix_t *matrix)
372{
373 return matrix->numrows_ > 1
374 ? (size_t)(matrix->rows_[1] - matrix->rows_[0])
375 : 0u;
376}
377
382JAS_ATTRIBUTE_PURE
383 static inline size_t jas_matrix_step(const jas_matrix_t *matrix)
384{
385 return matrix->numrows_ > 1
386 ? jas_matrix_rowstep(matrix)
387 : 1;
388}
389
394JAS_EXPORT
395 int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1);
396
401JAS_EXPORT
402 jas_matrix_t *jas_matrix_copy(jas_matrix_t *x);
403
408JAS_EXPORT
409 jas_matrix_t *jas_matrix_input(FILE *);
410
414JAS_ATTRIBUTE_CONST
415 static inline jas_seqent_t jas_seqent_asl(jas_seqent_t x, unsigned n)
416{
417#if 0
418#ifdef JAS_ENABLE_32BIT
419 return jas_least32_asl(x, n);
420#else
421 return jas_fast32_asl(x, n);
422#endif
423#endif
424 return jas_fix_asl(x, n);
425}
426
430JAS_ATTRIBUTE_CONST
431 static inline jas_seqent_t jas_seqent_asr(jas_seqent_t x, unsigned n)
432{
433#if 0
434#ifdef JAS_ENABLE_32BIT
435 return jas_least32_asr(x, n);
436#else
437 return jas_fast32_asr(x, n);
438#endif
439#endif
440 return jas_fix_asr(x, n);
441}
442
443/******************************************************************************\
444* Functions/macros for 2-D sequence class.
445\******************************************************************************/
446
451JAS_EXPORT
452 jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x);
453
458JAS_EXPORT
459 jas_matrix_t *jas_seq2d_create(jas_matind_t xstart, jas_matind_t ystart,
460 jas_matind_t xend, jas_matind_t yend);
461
466 static inline void jas_seq2d_destroy(jas_seq2d_t *s)
467{
468 jas_matrix_destroy(s);
469}
470
475JAS_ATTRIBUTE_PURE
476 static inline jas_matind_t jas_seq2d_xstart(const jas_seq2d_t *s)
477{
478 return s->xstart_;
479}
480
485JAS_ATTRIBUTE_PURE
486 static inline jas_matind_t jas_seq2d_ystart(const jas_seq2d_t *s)
487{
488 return s->ystart_;
489}
490
495JAS_ATTRIBUTE_PURE
496 static inline jas_matind_t jas_seq2d_xend(const jas_seq2d_t *s)
497{
498 return s->xend_;
499}
500
505JAS_ATTRIBUTE_PURE
506 static inline jas_matind_t jas_seq2d_yend(const jas_seq2d_t *s)
507{
508 return s->yend_;
509}
510
515JAS_ATTRIBUTE_PURE
516 static inline jas_seqent_t *jas_seq2d_getref(const jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
517{
518 return jas_matrix_getref(s, y - s->ystart_, x - s->xstart_);
519}
520
525JAS_ATTRIBUTE_PURE
526 static inline jas_seqent_t jas_seq2d_get(const jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
527{
528 return jas_matrix_get(s, y - s->ystart_, x - s->xstart_);
529}
530
535JAS_ATTRIBUTE_PURE
536 static inline size_t jas_seq2d_rowstep(const jas_seq2d_t *s)
537{
538 return jas_matrix_rowstep(s);
539}
540
545JAS_ATTRIBUTE_PURE
546 static inline unsigned jas_seq2d_width(const jas_seq2d_t *s)
547{
548 return (unsigned)(s->xend_ - s->xstart_);
549}
550
555JAS_ATTRIBUTE_PURE
556 static inline unsigned jas_seq2d_height(const jas_seq2d_t *s)
557{
558 return (unsigned)(s->yend_ - s->ystart_);
559}
560
565 static inline void jas_seq2d_setshift(jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
566{
567 s->xstart_ = x;
568 s->ystart_ = y;
569 s->xend_ = s->xstart_ + s->numcols_;
570 s->yend_ = s->ystart_ + s->numrows_;
571}
572
577JAS_ATTRIBUTE_PURE
578 static inline jas_matind_t jas_seq2d_size(const jas_seq2d_t *s)
579{
580 return jas_seq2d_width(s) * jas_seq2d_height(s);
581}
582
587JAS_ATTRIBUTE_PURE
588 static inline bool jas_seq2d_empty(const jas_seq2d_t *s)
589{
590 return jas_seq2d_width(s) == 0 || jas_seq2d_height(s) == 0;
591}
592
597JAS_EXPORT
598 int jas_seq2d_bindsub(jas_matrix_t *s, jas_matrix_t *s1, jas_matind_t xstart,
599 jas_matind_t ystart, jas_matind_t xend, jas_matind_t yend);
600
601/******************************************************************************\
602* Functions/macros for 1-D sequence class.
603\******************************************************************************/
604
609 static inline jas_seq_t *jas_seq_create(jas_matind_t start, jas_matind_t end)
610{
611 return jas_seq2d_create(start, 0, end, 1);
612}
613
618 static inline void jas_seq_destroy(jas_seq_t *seq)
619{
620 jas_seq2d_destroy(seq);
621}
622
627 static inline void jas_seq_set(jas_seq_t *seq, jas_matind_t i, jas_seqent_t v)
628{
629 seq->rows_[0][i - seq->xstart_] = v;
630}
631
636JAS_ATTRIBUTE_PURE
637 static inline jas_seqent_t *jas_seq_getref(const jas_seq_t *seq, jas_matind_t i)
638{
639 return &seq->rows_[0][i - seq->xstart_];
640}
641
646JAS_ATTRIBUTE_PURE
647 static inline jas_seqent_t jas_seq_get(const jas_seq_t *seq, jas_matind_t i)
648{
649 return seq->rows_[0][i - seq->xstart_];
650}
651
656JAS_ATTRIBUTE_PURE
657 static inline jas_matind_t jas_seq_start(const jas_seq_t *seq)
658{
659 return seq->xstart_;
660}
661
666JAS_ATTRIBUTE_PURE
667 static inline jas_matind_t jas_seq_end(const jas_seq_t *seq)
668{
669 return seq->xend_;
670}
671
676#ifdef __cplusplus
677}
678#endif
679
680#endif
jas_fix_t
int_least64_t jas_fix_t
Definition: jas_fix.h:101
jas_seq_get
static JAS_ATTRIBUTE_PURE jas_seqent_t jas_seq_get(const jas_seq_t *seq, jas_matind_t i)
Get an element of a sequence.
Definition: jas_seq.h:647
jas_seq2d_width
static JAS_ATTRIBUTE_PURE unsigned jas_seq2d_width(const jas_seq2d_t *s)
Get the number of columns in the sequence.
Definition: jas_seq.h:546
jas_seq2d_size
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq2d_size(const jas_seq2d_t *s)
Get the number of elements in the sequence.
Definition: jas_seq.h:578
jas_matrix_getvref
static JAS_ATTRIBUTE_PURE jas_seqent_t * jas_matrix_getvref(const jas_matrix_t *matrix, jas_matind_t i)
Get a reference to a particular row of a 2-D sequence.
Definition: jas_seq.h:269
jas_seq2d_xend
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq2d_xend(const jas_seq2d_t *s)
Get the ending x-coordinate of the sequence.
Definition: jas_seq.h:496
jas_seq2d_ystart
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq2d_ystart(const jas_seq2d_t *s)
Get the starting y-coordinate of the sequence.
Definition: jas_seq.h:486
jas_matrix_bindsub
JAS_EXPORT int jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t r0, jas_matind_t c0, jas_matind_t r1, jas_matind_t c1)
Create a matrix that references part of another matrix.
Definition: jas_seq.c:217
jas_matrix_setv
static void jas_matrix_setv(jas_matrix_t *matrix, jas_matind_t i, jas_seqent_t v)
Set an element in a matrix that is known to be a row or column vector.
Definition: jas_seq.h:246
jas_seq_create
static jas_seq_t * jas_seq_create(jas_matind_t start, jas_matind_t end)
Create a 1-D sequence.
Definition: jas_seq.h:609
jas_matrix_clip
JAS_EXPORT void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval, jas_seqent_t maxval)
Clip the values of matrix elements to the specified range.
Definition: jas_seq.c:298
jas_seq2d_copy
JAS_EXPORT jas_seq2d_t * jas_seq2d_copy(jas_seq2d_t *x)
Copy a 2-D sequence.
Definition: jas_seq.c:172
jas_matrix_empty
static JAS_ATTRIBUTE_PURE bool jas_matrix_empty(const jas_matrix_t *matrix)
Test if a matrix is empty (i.e., contains no elements).
Definition: jas_seq.h:204
jas_seq2d_height
static JAS_ATTRIBUTE_PURE unsigned jas_seq2d_height(const jas_seq2d_t *s)
Get the number of rows in the sequence.
Definition: jas_seq.h:556
jas_seq2d_yend
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq2d_yend(const jas_seq2d_t *s)
Get the ending y-coordinate of the sequence.
Definition: jas_seq.h:506
jas_seq2d_destroy
static void jas_seq2d_destroy(jas_seq2d_t *s)
Destroy a 2-D sequence.
Definition: jas_seq.h:466
jas_matrix_cmp
JAS_EXPORT int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1)
Compare two matrices for equality.
Definition: jas_seq.c:257
jas_matrix_resize
JAS_EXPORT int jas_matrix_resize(jas_matrix_t *matrix, jas_matind_t numrows, jas_matind_t numcols)
Resize a matrix. The previous contents of the matrix are lost.
Definition: jas_seq.c:375
jas_matrix_divpow2
JAS_EXPORT void jas_matrix_divpow2(jas_matrix_t *matrix, unsigned n)
Almost-but-not-quite arithmetic shift right of all elements in a matrix.
Definition: jas_seq.c:276
jas_seq2d_setshift
static void jas_seq2d_setshift(jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
Set the shift (i.e., starting x- and y-coordinates) of the sequence.
Definition: jas_seq.h:565
jas_seq2d_xstart
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq2d_xstart(const jas_seq2d_t *s)
Get the starting x-coordinate of the sequence.
Definition: jas_seq.h:476
jas_matrix_set
static void jas_matrix_set(jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j, jas_seqent_t v)
Set a matrix element.
Definition: jas_seq.h:224
jas_matrix_numcols
static JAS_ATTRIBUTE_PURE jas_matind_t jas_matrix_numcols(const jas_matrix_t *matrix)
Get the number of columns in a matrix.
Definition: jas_seq.h:184
jas_seq2d_rowstep
static JAS_ATTRIBUTE_PURE size_t jas_seq2d_rowstep(const jas_seq2d_t *s)
Get the stride between successive rows in the sequence.
Definition: jas_seq.h:536
jas_matrix_get
static JAS_ATTRIBUTE_PURE jas_seqent_t jas_matrix_get(const jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j)
Get a matrix element.
Definition: jas_seq.h:214
jas_seq_start
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq_start(const jas_seq_t *seq)
Get the starting index of a sequence.
Definition: jas_seq.h:657
jas_seq2d_get
static JAS_ATTRIBUTE_PURE jas_seqent_t jas_seq2d_get(const jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
Get an element of a 2-D sequence.
Definition: jas_seq.h:526
jas_seq_destroy
static void jas_seq_destroy(jas_seq_t *seq)
Destroy a 1-D sequence.
Definition: jas_seq.h:618
jas_matrix_getref
static JAS_ATTRIBUTE_PURE jas_seqent_t * jas_matrix_getref(const jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j)
Get the address of an element in a matrix.
Definition: jas_seq.h:259
jas_seq2d_empty
static JAS_ATTRIBUTE_PURE bool jas_seq2d_empty(const jas_seq2d_t *s)
Test if the sequence is empty (i.e., contains no elements).
Definition: jas_seq.h:588
jas_matrix_numrows
static JAS_ATTRIBUTE_PURE jas_matind_t jas_matrix_numrows(const jas_matrix_t *matrix)
Get the number of rows in a matrix.
Definition: jas_seq.h:175
jas_matrix_copy
JAS_EXPORT jas_matrix_t * jas_matrix_copy(jas_matrix_t *x)
Copy a matrix.
Definition: jas_seq.c:188
jas_matrix_input
JAS_EXPORT jas_matrix_t * jas_matrix_input(FILE *)
Read a matrix from a C standard library stream.
jas_matrix_bindrow
static int jas_matrix_bindrow(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t r)
Create a matrix that is a reference to a row of another matrix.
Definition: jas_seq.h:316
jas_matrix_destroy
JAS_EXPORT void jas_matrix_destroy(jas_matrix_t *matrix)
Destroy a matrix.
Definition: jas_seq.c:162
jas_matrix_size
static JAS_ATTRIBUTE_PURE jas_matind_t jas_matrix_size(const jas_matrix_t *matrix)
Get the number of elements in a matrix.
Definition: jas_seq.h:194
jas_seq_getref
static JAS_ATTRIBUTE_PURE jas_seqent_t * jas_seq_getref(const jas_seq_t *seq, jas_matind_t i)
Get a pointer (i.e., reference) to an element of a sequence.
Definition: jas_seq.h:637
jas_seq_end
static JAS_ATTRIBUTE_PURE jas_matind_t jas_seq_end(const jas_seq_t *seq)
Get the ending index of a sequence.
Definition: jas_seq.h:667
jas_matrix_create
JAS_EXPORT jas_matrix_t * jas_matrix_create(jas_matind_t numrows, jas_matind_t numcols)
Create a matrix with the specified dimensions.
Definition: jas_seq.c:102
jas_matrix_asr
JAS_EXPORT void jas_matrix_asr(jas_matrix_t *matrix, unsigned n)
Arithmetic shift right of all elements in a matrix.
Definition: jas_seq.c:327
jas_seq_set
static void jas_seq_set(jas_seq_t *seq, jas_matind_t i, jas_seqent_t v)
Set an element of a sequence.
Definition: jas_seq.h:627
jas_matrix_setall
JAS_EXPORT void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val)
Set all elements of a matrix to the specified value.
Definition: jas_seq.c:396
jas_matrix_bindcol
static int jas_matrix_bindcol(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t c)
Create a matrix that is a reference to a column of another matrix.
Definition: jas_seq.h:325
jas_matrix_step
static JAS_ATTRIBUTE_PURE size_t jas_matrix_step(const jas_matrix_t *matrix)
The spacing between columns of a matrix.
Definition: jas_seq.h:383
jas_matrix_asl
JAS_EXPORT void jas_matrix_asl(jas_matrix_t *matrix, unsigned n)
Arithmetic shift left of all elements in a matrix.
Definition: jas_seq.c:349
jas_seq2d_create
JAS_EXPORT jas_matrix_t * jas_seq2d_create(jas_matind_t xstart, jas_matind_t ystart, jas_matind_t xend, jas_matind_t yend)
Create a 2-D sequence.
Definition: jas_seq.c:87
jas_seq2d_getref
static JAS_ATTRIBUTE_PURE jas_seqent_t * jas_seq2d_getref(const jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
Get a pointer (i.e., reference) to an element of a 2-D sequence.
Definition: jas_seq.h:516
jas_matrix_rowstep
static JAS_ATTRIBUTE_PURE size_t jas_matrix_rowstep(const jas_matrix_t *matrix)
The spacing between rows of a matrix.
Definition: jas_seq.h:371
jas_matrix_output
JAS_EXPORT int jas_matrix_output(jas_matrix_t *matrix, FILE *out)
Write a matrix to a C standard library stream.
jas_matrix_getv
static JAS_ATTRIBUTE_PURE jas_seqent_t jas_matrix_getv(const jas_matrix_t *matrix, jas_matind_t i)
Get an element from a matrix that is known to be a row or column vector.
Definition: jas_seq.h:235
jas_seq2d_bindsub
JAS_EXPORT int jas_seq2d_bindsub(jas_matrix_t *s, jas_matrix_t *s1, jas_matind_t xstart, jas_matind_t ystart, jas_matind_t xend, jas_matind_t yend)
Initialize a sequence to reference a subsequence of another sequence.
Definition: jas_seq.c:206
jas_fix.h
JasPer Fixed-Point Number Class.
jas_math.h
Math-Related Code.
jas_types.h
Primitive Types.
jas_matrix_t
Matrix type.
Definition: jas_seq.h:117
jas_seq2d_t
Two-dimensional sequence type.
jas_seq_t
One-dimensional sequence type.