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302 lines
10 KiB
C
302 lines
10 KiB
C
/*
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* Copyright (c) 1999-2000 Image Power, Inc. and the University of
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* British Columbia.
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* Copyright (c) 2001-2002 Michael David Adams.
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* All rights reserved.
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*/
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/* __START_OF_JASPER_LICENSE__
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*
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* JasPer License Version 2.0
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*
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* Copyright (c) 2001-2006 Michael David Adams
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* Copyright (c) 1999-2000 Image Power, Inc.
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* Copyright (c) 1999-2000 The University of British Columbia
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*
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person (the
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* "User") obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, and/or sell copies of the Software, and to permit
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* persons to whom the Software is furnished to do so, subject to the
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* following conditions:
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*
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* 1. The above copyright notices and this permission notice (which
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* includes the disclaimer below) shall be included in all copies or
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* substantial portions of the Software.
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*
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* 2. The name of a copyright holder shall not be used to endorse or
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* promote products derived from the Software without specific prior
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* written permission.
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*
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
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* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
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* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
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* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
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* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
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* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
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* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
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* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
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* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
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* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
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* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
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* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
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* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
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* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
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* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
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* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
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* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
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* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
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* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
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*
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* __END_OF_JASPER_LICENSE__
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*/
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/*
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* Sequence/Matrix Library
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*
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* $Id: jas_seq.h,v 1.2 2008-05-26 09:41:51 vp153 Exp $
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*/
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#ifndef JAS_SEQ_H
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#define JAS_SEQ_H
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/******************************************************************************\
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* Includes.
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\******************************************************************************/
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#include <jasper/jas_config.h>
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#include <jasper/jas_stream.h>
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#include <jasper/jas_types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/******************************************************************************\
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* Constants.
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\******************************************************************************/
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/* This matrix is a reference to another matrix. */
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#define JAS_MATRIX_REF 0x0001
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/******************************************************************************\
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* Types.
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\******************************************************************************/
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/* An element in a sequence. */
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typedef int_fast32_t jas_seqent_t;
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/* An element in a matrix. */
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typedef int_fast32_t jas_matent_t;
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/* Matrix. */
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typedef struct {
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/* Additional state information. */
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int flags_;
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/* The starting horizontal index. */
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int_fast32_t xstart_;
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/* The starting vertical index. */
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int_fast32_t ystart_;
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/* The ending horizontal index. */
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int_fast32_t xend_;
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/* The ending vertical index. */
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int_fast32_t yend_;
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/* The number of rows in the matrix. */
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int_fast32_t numrows_;
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/* The number of columns in the matrix. */
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int_fast32_t numcols_;
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/* Pointers to the start of each row. */
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jas_seqent_t **rows_;
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/* The allocated size of the rows array. */
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int_fast32_t maxrows_;
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/* The matrix data buffer. */
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jas_seqent_t *data_;
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/* The allocated size of the data array. */
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int_fast32_t datasize_;
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} jas_matrix_t;
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typedef jas_matrix_t jas_seq2d_t;
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typedef jas_matrix_t jas_seq_t;
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/******************************************************************************\
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* Functions/macros for matrix class.
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\******************************************************************************/
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/* Get the number of rows. */
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#define jas_matrix_numrows(matrix) \
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((matrix)->numrows_)
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/* Get the number of columns. */
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#define jas_matrix_numcols(matrix) \
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((matrix)->numcols_)
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/* Get a matrix element. */
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#define jas_matrix_get(matrix, i, j) \
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((matrix)->rows_[i][j])
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/* Set a matrix element. */
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#define jas_matrix_set(matrix, i, j, v) \
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((matrix)->rows_[i][j] = (v))
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/* Get an element from a matrix that is known to be a row or column vector. */
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#define jas_matrix_getv(matrix, i) \
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(((matrix)->numrows_ == 1) ? ((matrix)->rows_[0][i]) : \
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((matrix)->rows_[i][0]))
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/* Set an element in a matrix that is known to be a row or column vector. */
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#define jas_matrix_setv(matrix, i, v) \
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(((matrix)->numrows_ == 1) ? ((matrix)->rows_[0][i] = (v)) : \
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((matrix)->rows_[i][0] = (v)))
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/* Get the address of an element in a matrix. */
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#define jas_matrix_getref(matrix, i, j) \
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(&(matrix)->rows_[i][j])
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#define jas_matrix_getvref(matrix, i) \
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(((matrix)->numrows_ > 1) ? jas_matrix_getref(matrix, i, 0) : jas_matrix_getref(matrix, 0, i))
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#define jas_matrix_length(matrix) \
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(max((matrix)->numrows_, (matrix)->numcols_))
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/* Create a matrix with the specified dimensions. */
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jas_matrix_t *jas_matrix_create(int numrows, int numcols);
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/* Destroy a matrix. */
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void jas_matrix_destroy(jas_matrix_t *matrix);
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/* Resize a matrix. The previous contents of the matrix are lost. */
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int jas_matrix_resize(jas_matrix_t *matrix, int numrows, int numcols);
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int jas_matrix_output(jas_matrix_t *matrix, FILE *out);
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/* Create a matrix that references part of another matrix. */
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void jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1, int r0, int c0,
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int r1, int c1);
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/* Create a matrix that is a reference to a row of another matrix. */
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#define jas_matrix_bindrow(mat0, mat1, r) \
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(jas_matrix_bindsub((mat0), (mat1), (r), 0, (r), (mat1)->numcols_ - 1))
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/* Create a matrix that is a reference to a column of another matrix. */
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#define jas_matrix_bindcol(mat0, mat1, c) \
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(jas_matrix_bindsub((mat0), (mat1), 0, (c), (mat1)->numrows_ - 1, (c)))
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/* Clip the values of matrix elements to the specified range. */
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void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval,
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jas_seqent_t maxval);
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/* Arithmetic shift left of all elements in a matrix. */
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void jas_matrix_asl(jas_matrix_t *matrix, int n);
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/* Arithmetic shift right of all elements in a matrix. */
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void jas_matrix_asr(jas_matrix_t *matrix, int n);
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/* Almost-but-not-quite arithmetic shift right of all elements in a matrix. */
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void jas_matrix_divpow2(jas_matrix_t *matrix, int n);
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/* Set all elements of a matrix to the specified value. */
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void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val);
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/* The spacing between rows of a matrix. */
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#define jas_matrix_rowstep(matrix) \
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(((matrix)->numrows_ > 1) ? ((matrix)->rows_[1] - (matrix)->rows_[0]) : (0))
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/* The spacing between columns of a matrix. */
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#define jas_matrix_step(matrix) \
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(((matrix)->numrows_ > 1) ? (jas_matrix_rowstep(matrix)) : (1))
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/* Compare two matrices for equality. */
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int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1);
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jas_matrix_t *jas_matrix_copy(jas_matrix_t *x);
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jas_matrix_t *jas_matrix_input(FILE *);
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/******************************************************************************\
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* Functions/macros for 2-D sequence class.
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\******************************************************************************/
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jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x);
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jas_matrix_t *jas_seq2d_create(int xstart, int ystart, int xend, int yend);
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#define jas_seq2d_destroy(s) \
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jas_matrix_destroy(s)
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#define jas_seq2d_xstart(s) \
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((s)->xstart_)
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#define jas_seq2d_ystart(s) \
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((s)->ystart_)
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#define jas_seq2d_xend(s) \
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((s)->xend_)
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#define jas_seq2d_yend(s) \
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((s)->yend_)
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#define jas_seq2d_getref(s, x, y) \
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(jas_matrix_getref(s, (y) - (s)->ystart_, (x) - (s)->xstart_))
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#define jas_seq2d_get(s, x, y) \
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(jas_matrix_get(s, (y) - (s)->ystart_, (x) - (s)->xstart_))
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#define jas_seq2d_rowstep(s) \
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jas_matrix_rowstep(s)
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#define jas_seq2d_width(s) \
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((s)->xend_ - (s)->xstart_)
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#define jas_seq2d_height(s) \
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((s)->yend_ - (s)->ystart_)
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#define jas_seq2d_setshift(s, x, y) \
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((s)->xstart_ = (x), (s)->ystart_ = (y), \
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(s)->xend_ = (s)->xstart_ + (s)->numcols_, \
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(s)->yend_ = (s)->ystart_ + (s)->numrows_)
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void jas_seq2d_bindsub(jas_matrix_t *s, jas_matrix_t *s1, int xstart,
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int ystart, int xend, int yend);
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/******************************************************************************\
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* Functions/macros for 1-D sequence class.
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\******************************************************************************/
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#define jas_seq_create(start, end) \
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(jas_seq2d_create(start, 0, end, 1))
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#define jas_seq_destroy(seq) \
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(jas_seq2d_destroy(seq))
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#define jas_seq_set(seq, i, v) \
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((seq)->rows_[0][(i) - (seq)->xstart_] = (v))
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#define jas_seq_getref(seq, i) \
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(&(seq)->rows_[0][(i) - (seq)->xstart_])
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#define jas_seq_get(seq, i) \
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((seq)->rows_[0][(i) - (seq)->xstart_])
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#define jas_seq_start(seq) \
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((seq)->xstart_)
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#define jas_seq_end(seq) \
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((seq)->xend_)
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#ifdef __cplusplus
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}
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#endif
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#endif
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