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jas_seq.h
/* * 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. \******************************************************************************/ /* The configuration header file should be included first. */ #include <jasper/jas_config.h> #include <jasper/jas_stream.h> #include <jasper/jas_types.h> #include <jasper/jas_math.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; typedef int_fast32_t jas_matind_t; /* Matrix. */ typedef struct { /* Additional state information. */ int flags_; /* The starting horizontal index. */ jas_matind_t xstart_; /* The starting vertical index. */ jas_matind_t ystart_; /* The ending horizontal index. */ jas_matind_t xend_; /* The ending vertical index. */ jas_matind_t yend_; /* The number of rows in the matrix. */ jas_matind_t numrows_; /* The number of columns in the matrix. */ jas_matind_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_DLLEXPORT jas_matrix_t *jas_matrix_create(jas_matind_t numrows, jas_matind_t numcols); /* Destroy a matrix. */ JAS_DLLEXPORT void jas_matrix_destroy(jas_matrix_t *matrix); /* Resize a matrix. The previous contents of the matrix are lost. */ JAS_DLLEXPORT int jas_matrix_resize(jas_matrix_t *matrix, jas_matind_t numrows, jas_matind_t numcols); JAS_DLLEXPORT int jas_matrix_output(jas_matrix_t *matrix, FILE *out); /* Create a matrix that references part of another matrix. */ JAS_DLLEXPORT void 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 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. */ JAS_DLLEXPORT 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. */ JAS_DLLEXPORT void jas_matrix_asl(jas_matrix_t *matrix, int n); /* Arithmetic shift right of all elements in a matrix. */ JAS_DLLEXPORT void jas_matrix_asr(jas_matrix_t *matrix, int n); /* Almost-but-not-quite arithmetic shift right of all elements in a matrix. */ JAS_DLLEXPORT void jas_matrix_divpow2(jas_matrix_t *matrix, int n); /* Set all elements of a matrix to the specified value. */ JAS_DLLEXPORT 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. */ JAS_DLLEXPORT int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1); JAS_DLLEXPORT jas_matrix_t *jas_matrix_copy(jas_matrix_t *x); JAS_DLLEXPORT jas_matrix_t *jas_matrix_input(FILE *); #define jas_seqent_asl jas_fast32_asl #define jas_seqent_asr jas_fast32_asr /******************************************************************************\ * Functions/macros for 2-D sequence class. \******************************************************************************/ JAS_DLLEXPORT jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x); JAS_DLLEXPORT jas_matrix_t *jas_seq2d_create(jas_matind_t xstart, jas_matind_t ystart, jas_matind_t xend, jas_matind_t 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)) JAS_DLLEXPORT void 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. \******************************************************************************/ #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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