jas_seq.h File Reference

Sequence/Matrix Library. More...

#include <jasper/jas_config.h>
#include <jasper/jas_types.h>
#include <jasper/jas_fix.h>
#include <jasper/jas_math.h>
#include <stdio.h>

Go to the source code of this file.

Classes
struct	jas_matrix_t
	Matrix type. More...

Functions
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_matrix_numrows (const jas_matrix_t *matrix)
	Get the number of rows in a matrix.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_matrix_numcols (const jas_matrix_t *matrix)
	Get the number of columns in a matrix.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_matrix_size (const jas_matrix_t *matrix)
	Get the number of elements in a matrix.
static JAS_ATTRIBUTE_PURE bool	jas_matrix_empty (const jas_matrix_t *matrix)
	Test if a matrix is empty (i.e., contains no elements).
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.
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.
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.
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.
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.
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.
JAS_EXPORT jas_matrix_t *	jas_matrix_create (jas_matind_t numrows, jas_matind_t numcols)
	Create a matrix with the specified dimensions.
JAS_EXPORT void	jas_matrix_destroy (jas_matrix_t *matrix)
	Destroy a matrix.
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.
JAS_EXPORT int	jas_matrix_output (jas_matrix_t *matrix, FILE *out)
	Write a matrix to a C standard library stream.
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.
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.
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.
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.
JAS_EXPORT void	jas_matrix_asl (jas_matrix_t *matrix, unsigned n)
	Arithmetic shift left of all elements in a matrix.
JAS_EXPORT void	jas_matrix_asr (jas_matrix_t *matrix, unsigned n)
	Arithmetic shift right of all elements in a matrix.
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.
JAS_EXPORT void	jas_matrix_setall (jas_matrix_t *matrix, jas_seqent_t val)
	Set all elements of a matrix to the specified value.
static JAS_ATTRIBUTE_PURE size_t	jas_matrix_rowstep (const jas_matrix_t *matrix)
	The spacing between rows of a matrix.
static JAS_ATTRIBUTE_PURE size_t	jas_matrix_step (const jas_matrix_t *matrix)
	The spacing between columns of a matrix.
JAS_EXPORT int	jas_matrix_cmp (jas_matrix_t *mat0, jas_matrix_t *mat1)
	Compare two matrices for equality.
JAS_EXPORT jas_matrix_t *	jas_matrix_copy (jas_matrix_t *x)
	Copy a matrix.
JAS_EXPORT jas_matrix_t *	jas_matrix_input (FILE *)
	Read a matrix from a C standard library stream.
JAS_EXPORT jas_seq2d_t *	jas_seq2d_copy (jas_seq2d_t *x)
	Copy a 2-D sequence.
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.
static void	jas_seq2d_destroy (jas_seq2d_t *s)
	Destroy a 2-D sequence.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq2d_xstart (const jas_seq2d_t *s)
	Get the starting x-coordinate of the sequence.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq2d_ystart (const jas_seq2d_t *s)
	Get the starting y-coordinate of the sequence.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq2d_xend (const jas_seq2d_t *s)
	Get the ending x-coordinate of the sequence.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq2d_yend (const jas_seq2d_t *s)
	Get the ending y-coordinate of the sequence.
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.
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.
static JAS_ATTRIBUTE_PURE size_t	jas_seq2d_rowstep (const jas_seq2d_t *s)
	Get the stride between successive rows in the sequence.
static JAS_ATTRIBUTE_PURE unsigned	jas_seq2d_width (const jas_seq2d_t *s)
	Get the number of columns in the sequence.
static JAS_ATTRIBUTE_PURE unsigned	jas_seq2d_height (const jas_seq2d_t *s)
	Get the number of rows in the sequence.
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.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq2d_size (const jas_seq2d_t *s)
	Get the number of elements in the sequence.
static JAS_ATTRIBUTE_PURE bool	jas_seq2d_empty (const jas_seq2d_t *s)
	Test if the sequence is empty (i.e., contains no elements).
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.
static jas_seq_t *	jas_seq_create (jas_matind_t start, jas_matind_t end)
	Create a 1-D sequence.
static void	jas_seq_destroy (jas_seq_t *seq)
	Destroy a 1-D sequence.
static void	jas_seq_set (jas_seq_t *seq, jas_matind_t i, jas_seqent_t v)
	Set an element of a sequence.
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.
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.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq_start (const jas_seq_t *seq)
	Get the starting index of a sequence.
static JAS_ATTRIBUTE_PURE jas_matind_t	jas_seq_end (const jas_seq_t *seq)
	Get the ending index of a sequence.

Detailed Description

Sequence/Matrix Library.