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/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2002 Michael David Adams.
* All rights reserved.
*/
/* __START_OF_JASPER_LICENSE__
*
* JasPer License Version 2.0
*
* Copyright (c) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __END_OF_JASPER_LICENSE__
*/
/*
* Sequence/Matrix Library
*
* $Id$
*/
#ifndef JAS_SEQ_H
#define JAS_SEQ_H
/******************************************************************************\
* Includes.
\******************************************************************************/
#include <jasper/jas_config.h>
#include <jasper/jas_stream.h>
#include <jasper/jas_types.h>
#ifdef __cplusplus
extern "C" {
#endif
/******************************************************************************\
* Constants.
\******************************************************************************/
/* This matrix is a reference to another matrix. */
#define JAS_MATRIX_REF 0x0001
/******************************************************************************\
* Types.
\******************************************************************************/
/* An element in a sequence. */
typedef int_fast32_t jas_seqent_t;
/* An element in a matrix. */
typedef int_fast32_t jas_matent_t;
/* Matrix. */
typedef struct {
/* Additional state information. */
int flags_;
/* The starting horizontal index. */
int_fast32_t xstart_;
/* The starting vertical index. */
int_fast32_t ystart_;
/* The ending horizontal index. */
int_fast32_t xend_;
/* The ending vertical index. */
int_fast32_t yend_;
/* The number of rows in the matrix. */
int_fast32_t numrows_;
/* The number of columns in the matrix. */
int_fast32_t numcols_;
/* Pointers to the start of each row. */
jas_seqent_t **rows_;
/* The allocated size of the rows array. */
int_fast32_t maxrows_;
/* The matrix data buffer. */
jas_seqent_t *data_;
/* The allocated size of the data array. */
int_fast32_t datasize_;
} jas_matrix_t;
typedef jas_matrix_t jas_seq2d_t;
typedef jas_matrix_t jas_seq_t;
/******************************************************************************\
* Functions/macros for matrix class.
\******************************************************************************/
/* Get the number of rows. */
#define jas_matrix_numrows(matrix) \
((matrix)->numrows_)
/* Get the number of columns. */
#define jas_matrix_numcols(matrix) \
((matrix)->numcols_)
#define jas_matrix_size(matrix) \
(jas_matrix_width(matrix) * jas_matrix_height(matrix))
/* Get a matrix element. */
#define jas_matrix_get(matrix, i, j) \
((matrix)->rows_[i][j])
/* Set a matrix element. */
#define jas_matrix_set(matrix, i, j, v) \
((matrix)->rows_[i][j] = (v))
/* Get an element from a matrix that is known to be a row or column vector. */
#define jas_matrix_getv(matrix, i) \
(((matrix)->numrows_ == 1) ? ((matrix)->rows_[0][i]) : \
((matrix)->rows_[i][0]))
/* Set an element in a matrix that is known to be a row or column vector. */
#define jas_matrix_setv(matrix, i, v) \
(((matrix)->numrows_ == 1) ? ((matrix)->rows_[0][i] = (v)) : \
((matrix)->rows_[i][0] = (v)))
/* Get the address of an element in a matrix. */
#define jas_matrix_getref(matrix, i, j) \
(&(matrix)->rows_[i][j])
#define jas_matrix_getvref(matrix, i) \
(((matrix)->numrows_ > 1) ? jas_matrix_getref(matrix, i, 0) : jas_matrix_getref(matrix, 0, i))
#define jas_matrix_length(matrix) \
(max((matrix)->numrows_, (matrix)->numcols_))
/* Create a matrix with the specified dimensions. */
jas_matrix_t *jas_matrix_create(int numrows, int numcols);
/* Destroy a matrix. */
void jas_matrix_destroy(jas_matrix_t *matrix);
/* Resize a matrix. The previous contents of the matrix are lost. */
int jas_matrix_resize(jas_matrix_t *matrix, int numrows, int numcols);
int jas_matrix_output(jas_matrix_t *matrix, FILE *out);
/* Create a matrix that references part of another matrix. */
void jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1, int r0, int c0,
int r1, int c1);
/* Create a matrix that is a reference to a row of another matrix. */
#define jas_matrix_bindrow(mat0, mat1, r) \
(jas_matrix_bindsub((mat0), (mat1), (r), 0, (r), (mat1)->numcols_ - 1))
/* Create a matrix that is a reference to a column of another matrix. */
#define jas_matrix_bindcol(mat0, mat1, c) \
(jas_matrix_bindsub((mat0), (mat1), 0, (c), (mat1)->numrows_ - 1, (c)))
/* Clip the values of matrix elements to the specified range. */
void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval,
jas_seqent_t maxval);
/* Arithmetic shift left of all elements in a matrix. */
void jas_matrix_asl(jas_matrix_t *matrix, int n);
/* Arithmetic shift right of all elements in a matrix. */
void jas_matrix_asr(jas_matrix_t *matrix, int n);
/* Almost-but-not-quite arithmetic shift right of all elements in a matrix. */
void jas_matrix_divpow2(jas_matrix_t *matrix, int n);
/* Set all elements of a matrix to the specified value. */
void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val);
/* The spacing between rows of a matrix. */
#define jas_matrix_rowstep(matrix) \
(((matrix)->numrows_ > 1) ? ((matrix)->rows_[1] - (matrix)->rows_[0]) : (0))
/* The spacing between columns of a matrix. */
#define jas_matrix_step(matrix) \
(((matrix)->numrows_ > 1) ? (jas_matrix_rowstep(matrix)) : (1))
/* Compare two matrices for equality. */
int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1);
jas_matrix_t *jas_matrix_copy(jas_matrix_t *x);
jas_matrix_t *jas_matrix_input(FILE *);
/******************************************************************************\
* Functions/macros for 2-D sequence class.
\******************************************************************************/
jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x);
jas_matrix_t *jas_seq2d_create(int xstart, int ystart, int xend, int yend);
#define jas_seq2d_destroy(s) \
jas_matrix_destroy(s)
#define jas_seq2d_xstart(s) \
((s)->xstart_)
#define jas_seq2d_ystart(s) \
((s)->ystart_)
#define jas_seq2d_xend(s) \
((s)->xend_)
#define jas_seq2d_yend(s) \
((s)->yend_)
#define jas_seq2d_getref(s, x, y) \
(jas_matrix_getref(s, (y) - (s)->ystart_, (x) - (s)->xstart_))
#define jas_seq2d_get(s, x, y) \
(jas_matrix_get(s, (y) - (s)->ystart_, (x) - (s)->xstart_))
#define jas_seq2d_rowstep(s) \
jas_matrix_rowstep(s)
#define jas_seq2d_width(s) \
((s)->xend_ - (s)->xstart_)
#define jas_seq2d_height(s) \
((s)->yend_ - (s)->ystart_)
#define jas_seq2d_setshift(s, x, y) \
((s)->xstart_ = (x), (s)->ystart_ = (y), \
(s)->xend_ = (s)->xstart_ + (s)->numcols_, \
(s)->yend_ = (s)->ystart_ + (s)->numrows_)
#define jas_seq2d_size(s) \
(jas_seq2d_width(s) * jas_seq2d_height(s))
void jas_seq2d_bindsub(jas_matrix_t *s, jas_matrix_t *s1, int xstart,
int ystart, int xend, int yend);
/******************************************************************************\
* Functions/macros for 1-D sequence class.
\******************************************************************************/
#define jas_seq_create(start, end) \
(jas_seq2d_create(start, 0, end, 1))
#define jas_seq_destroy(seq) \
(jas_seq2d_destroy(seq))
#define jas_seq_set(seq, i, v) \
((seq)->rows_[0][(i) - (seq)->xstart_] = (v))
#define jas_seq_getref(seq, i) \
(&(seq)->rows_[0][(i) - (seq)->xstart_])
#define jas_seq_get(seq, i) \
((seq)->rows_[0][(i) - (seq)->xstart_])
#define jas_seq_start(seq) \
((seq)->xstart_)
#define jas_seq_end(seq) \
((seq)->xend_)
#ifdef __cplusplus
}
#endif
#endif
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