681 lines
15 KiB
C
681 lines
15 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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* @file jas_seq.h
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* @brief Sequence/Matrix Library
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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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/* The configuration header file should be included first. */
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#include <jasper/jas_config.h> /* IWYU pragma: keep */
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#include <jasper/jas_types.h>
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#include <jasper/jas_fix.h>
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#include <jasper/jas_math.h>
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#include <stdio.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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* @addtogroup module_seq
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* @{
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*/
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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 jas_fix_t jas_seqent_t;
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#define PRIjas_seqent PRIjas_fix
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/* An element in a matrix. */
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typedef jas_fix_t jas_matent_t;
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typedef jas_fix_t jas_matind_t;
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/*!
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@brief Matrix type.
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*/
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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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jas_matind_t xstart_;
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/* The starting vertical index. */
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jas_matind_t ystart_;
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/* The ending horizontal index. */
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jas_matind_t xend_;
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/* The ending vertical index. */
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jas_matind_t yend_;
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/* The number of rows in the matrix. */
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jas_matind_t numrows_;
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/* The number of columns in the matrix. */
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jas_matind_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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/*!
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@struct jas_seq2d_t
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@brief Two-dimensional sequence type.
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*/
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typedef jas_matrix_t jas_seq2d_t;
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/*!
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@struct jas_seq_t
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@brief One-dimensional sequence type.
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*/
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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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/*!
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@brief
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Get the number of rows in a matrix.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_matrix_numrows(const jas_matrix_t *matrix)
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{
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return matrix->numrows_;
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}
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/*!
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@brief Get the number of columns in a matrix.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_matrix_numcols(const jas_matrix_t *matrix)
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{
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return matrix->numcols_;
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}
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/*!
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@brief
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Get the number of elements in a matrix.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_matrix_size(const jas_matrix_t *matrix)
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{
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return jas_matrix_numcols(matrix) * jas_matrix_numrows(matrix);
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}
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/*!
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@brief
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Test if a matrix is empty (i.e., contains no elements).
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*/
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JAS_ATTRIBUTE_PURE
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static inline bool jas_matrix_empty(const jas_matrix_t *matrix)
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{
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return jas_matrix_numcols(matrix) == 0 || jas_matrix_numrows(matrix) == 0;
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}
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/*!
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@brief
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Get a matrix element.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_seqent_t jas_matrix_get(const jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j)
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{
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assert(i >= 0 && i < matrix->numrows_ && j >= 0 && j < matrix->numcols_);
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return matrix->rows_[i][j];
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}
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/*!
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@brief
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Set a matrix element.
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*/
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static inline void jas_matrix_set(jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j, jas_seqent_t v)
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{
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assert(i >= 0 && i < matrix->numrows_ && j >= 0 && j < matrix->numcols_);
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matrix->rows_[i][j] = v;
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}
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/*!
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@brief
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Get an element from a matrix that is known to be a row or column vector.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_seqent_t jas_matrix_getv(const jas_matrix_t *matrix, jas_matind_t i)
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{
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return matrix->numrows_ == 1
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? matrix->rows_[0][i]
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: matrix->rows_[i][0];
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}
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/*!
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@brief
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Set an element in a matrix that is known to be a row or column vector.
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*/
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static inline void jas_matrix_setv(jas_matrix_t *matrix, jas_matind_t i, jas_seqent_t v)
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{
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if (matrix->numrows_ == 1)
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matrix->rows_[0][i] = v;
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else
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matrix->rows_[i][0] = v;
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}
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/*!
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@brief
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Get the address of an element in a matrix.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_seqent_t *jas_matrix_getref(const jas_matrix_t *matrix, jas_matind_t i, jas_matind_t j)
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{
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return &matrix->rows_[i][j];
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}
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/*!
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@brief
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Get a reference to a particular row of a 2-D sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_seqent_t *jas_matrix_getvref(const jas_matrix_t *matrix, jas_matind_t i)
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{
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return matrix->numrows_ > 1
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? jas_matrix_getref(matrix, i, 0)
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: jas_matrix_getref(matrix, 0, i);
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}
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/*!
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@brief
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Create a matrix with the specified dimensions.
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*/
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JAS_EXPORT
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jas_matrix_t *jas_matrix_create(jas_matind_t numrows, jas_matind_t numcols);
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/*!
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@brief
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Destroy a matrix.
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*/
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JAS_EXPORT
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void jas_matrix_destroy(jas_matrix_t *matrix);
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/*!
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@brief
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Resize a matrix. The previous contents of the matrix are lost.
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*/
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JAS_EXPORT
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int jas_matrix_resize(jas_matrix_t *matrix, jas_matind_t numrows, jas_matind_t numcols);
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/*!
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@brief
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Write a matrix to a C standard library stream.
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*/
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JAS_EXPORT
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int jas_matrix_output(jas_matrix_t *matrix, FILE *out);
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/*!
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@brief
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Create a matrix that references part of another matrix.
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*/
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JAS_EXPORT
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int jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t r0,
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jas_matind_t c0, jas_matind_t r1, jas_matind_t c1);
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/*!
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@brief
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Create a matrix that is a reference to a row of another matrix.
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*/
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static inline int jas_matrix_bindrow(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t r)
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{
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return jas_matrix_bindsub(mat0, mat1, r, 0, r, mat1->numcols_ - 1);
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}
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/*!
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@brief
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Create a matrix that is a reference to a column of another matrix.
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*/
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static inline int jas_matrix_bindcol(jas_matrix_t *mat0, jas_matrix_t *mat1, jas_matind_t c)
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{
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return jas_matrix_bindsub(mat0, mat1, 0, c, mat1->numrows_ - 1, c);
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}
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/*!
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@brief
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Clip the values of matrix elements to the specified range.
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*/
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JAS_EXPORT
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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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/*!
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@brief
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Arithmetic shift left of all elements in a matrix.
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*/
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JAS_EXPORT
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void jas_matrix_asl(jas_matrix_t *matrix, unsigned n);
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/*!
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@brief
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Arithmetic shift right of all elements in a matrix.
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*/
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JAS_EXPORT
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void jas_matrix_asr(jas_matrix_t *matrix, unsigned n);
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/*!
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@brief
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Almost-but-not-quite arithmetic shift right of all elements in a matrix.
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*/
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JAS_EXPORT
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void jas_matrix_divpow2(jas_matrix_t *matrix, unsigned n);
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/*!
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@brief
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Set all elements of a matrix to the specified value.
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*/
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JAS_EXPORT
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void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val);
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/*!
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@brief
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The spacing between rows of a matrix.
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*/
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JAS_ATTRIBUTE_PURE
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static inline size_t jas_matrix_rowstep(const jas_matrix_t *matrix)
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{
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return matrix->numrows_ > 1
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? (size_t)(matrix->rows_[1] - matrix->rows_[0])
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: 0u;
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}
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/*!
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@brief
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The spacing between columns of a matrix.
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*/
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JAS_ATTRIBUTE_PURE
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static inline size_t jas_matrix_step(const jas_matrix_t *matrix)
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{
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return matrix->numrows_ > 1
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? jas_matrix_rowstep(matrix)
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: 1;
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}
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/*!
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@brief
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Compare two matrices for equality.
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*/
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JAS_EXPORT
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int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1);
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/*!
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@brief
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Copy a matrix.
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*/
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JAS_EXPORT
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jas_matrix_t *jas_matrix_copy(jas_matrix_t *x);
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/*!
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@brief
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Read a matrix from a C standard library stream.
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*/
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JAS_EXPORT
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jas_matrix_t *jas_matrix_input(FILE *);
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/*!
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@brief
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*/
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JAS_ATTRIBUTE_CONST
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static inline jas_seqent_t jas_seqent_asl(jas_seqent_t x, unsigned n)
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{
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#if 0
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#ifdef JAS_ENABLE_32BIT
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return jas_least32_asl(x, n);
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#else
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return jas_fast32_asl(x, n);
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#endif
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#endif
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return jas_fix_asl(x, n);
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}
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/*!
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@brief
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*/
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JAS_ATTRIBUTE_CONST
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static inline jas_seqent_t jas_seqent_asr(jas_seqent_t x, unsigned n)
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{
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#if 0
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#ifdef JAS_ENABLE_32BIT
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return jas_least32_asr(x, n);
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#else
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return jas_fast32_asr(x, n);
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#endif
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#endif
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return jas_fix_asr(x, n);
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}
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/******************************************************************************\
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* Functions/macros for 2-D sequence class.
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\******************************************************************************/
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/*!
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@brief
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Copy a 2-D sequence.
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*/
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JAS_EXPORT
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jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x);
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/*!
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@brief
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Create a 2-D sequence.
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*/
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JAS_EXPORT
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jas_matrix_t *jas_seq2d_create(jas_matind_t xstart, jas_matind_t ystart,
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jas_matind_t xend, jas_matind_t yend);
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/*!
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@brief
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Destroy a 2-D sequence.
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*/
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static inline void jas_seq2d_destroy(jas_seq2d_t *s)
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{
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jas_matrix_destroy(s);
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}
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/*!
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@brief
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Get the starting x-coordinate of the sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_seq2d_xstart(const jas_seq2d_t *s)
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{
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return s->xstart_;
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}
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/*!
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@brief
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Get the starting y-coordinate of the sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_seq2d_ystart(const jas_seq2d_t *s)
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{
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return s->ystart_;
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}
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/*!
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@brief
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Get the ending x-coordinate of the sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_seq2d_xend(const jas_seq2d_t *s)
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{
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return s->xend_;
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}
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/*!
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@brief
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Get the ending y-coordinate of the sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_matind_t jas_seq2d_yend(const jas_seq2d_t *s)
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{
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return s->yend_;
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}
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/*!
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@brief
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Get a pointer (i.e., reference) to an element of a 2-D sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_seqent_t *jas_seq2d_getref(const jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
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{
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return jas_matrix_getref(s, y - s->ystart_, x - s->xstart_);
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}
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/*!
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@brief
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Get an element of a 2-D sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline jas_seqent_t jas_seq2d_get(const jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
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{
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return jas_matrix_get(s, y - s->ystart_, x - s->xstart_);
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}
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/*!
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@brief
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Get the stride between successive rows in the sequence.
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*/
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JAS_ATTRIBUTE_PURE
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static inline size_t jas_seq2d_rowstep(const jas_seq2d_t *s)
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{
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return jas_matrix_rowstep(s);
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}
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/*!
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@brief
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Get the number of columns in the sequence.
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|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline unsigned jas_seq2d_width(const jas_seq2d_t *s)
|
|
{
|
|
return (unsigned)(s->xend_ - s->xstart_);
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Get the number of rows in the sequence.
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline unsigned jas_seq2d_height(const jas_seq2d_t *s)
|
|
{
|
|
return (unsigned)(s->yend_ - s->ystart_);
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Set the shift (i.e., starting x- and y-coordinates) of the sequence.
|
|
*/
|
|
static inline void jas_seq2d_setshift(jas_seq2d_t *s, jas_matind_t x, jas_matind_t y)
|
|
{
|
|
s->xstart_ = x;
|
|
s->ystart_ = y;
|
|
s->xend_ = s->xstart_ + s->numcols_;
|
|
s->yend_ = s->ystart_ + s->numrows_;
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Get the number of elements in the sequence.
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline jas_matind_t jas_seq2d_size(const jas_seq2d_t *s)
|
|
{
|
|
return jas_seq2d_width(s) * jas_seq2d_height(s);
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Test if the sequence is empty (i.e., contains no elements).
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline bool jas_seq2d_empty(const jas_seq2d_t *s)
|
|
{
|
|
return jas_seq2d_width(s) == 0 || jas_seq2d_height(s) == 0;
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Initialize a sequence to reference a subsequence of another sequence.
|
|
*/
|
|
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);
|
|
|
|
/******************************************************************************\
|
|
* Functions/macros for 1-D sequence class.
|
|
\******************************************************************************/
|
|
|
|
/*!
|
|
@brief
|
|
Create a 1-D sequence.
|
|
*/
|
|
static inline jas_seq_t *jas_seq_create(jas_matind_t start, jas_matind_t end)
|
|
{
|
|
return jas_seq2d_create(start, 0, end, 1);
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Destroy a 1-D sequence.
|
|
*/
|
|
static inline void jas_seq_destroy(jas_seq_t *seq)
|
|
{
|
|
jas_seq2d_destroy(seq);
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Set an element of a sequence.
|
|
*/
|
|
static inline void jas_seq_set(jas_seq_t *seq, jas_matind_t i, jas_seqent_t v)
|
|
{
|
|
seq->rows_[0][i - seq->xstart_] = v;
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Get a pointer (i.e., reference) to an element of a sequence.
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline jas_seqent_t *jas_seq_getref(const jas_seq_t *seq, jas_matind_t i)
|
|
{
|
|
return &seq->rows_[0][i - seq->xstart_];
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Get an element of a sequence.
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline jas_seqent_t jas_seq_get(const jas_seq_t *seq, jas_matind_t i)
|
|
{
|
|
return seq->rows_[0][i - seq->xstart_];
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Get the starting index of a sequence.
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline jas_matind_t jas_seq_start(const jas_seq_t *seq)
|
|
{
|
|
return seq->xstart_;
|
|
}
|
|
|
|
/*!
|
|
@brief
|
|
Get the ending index of a sequence.
|
|
*/
|
|
JAS_ATTRIBUTE_PURE
|
|
static inline jas_matind_t jas_seq_end(const jas_seq_t *seq)
|
|
{
|
|
return seq->xend_;
|
|
}
|
|
|
|
/*!
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|