--- /dev/null
+/*
+ * Copyright (c) 1999-2000 Image Power, Inc. and the University of
+ * British Columbia.
+ * Copyright (c) 2001-2003 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__
+ */
+
+/*
+ * I/O Stream Class
+ *
+ * $Id: jas_stream.h,v 1.2 2008-05-26 09:41:51 vp153 Exp $
+ */
+
+#ifndef JAS_STREAM_H
+#define JAS_STREAM_H
+
+/******************************************************************************\
+* Includes.
+\******************************************************************************/
+
+#include <jasper/jas_config.h>
+
+#include <stdio.h>
+#if defined(HAVE_FCNTL_H)
+#include <fcntl.h>
+#endif
+#include <string.h>
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+#include <jasper/jas_types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+* Constants.
+\******************************************************************************/
+
+/* On most UNIX systems, we probably need to define O_BINARY ourselves. */
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+/*
+ * Stream open flags.
+ */
+
+/* The stream was opened for reading. */
+#define JAS_STREAM_READ 0x0001
+/* The stream was opened for writing. */
+#define JAS_STREAM_WRITE 0x0002
+/* The stream was opened for appending. */
+#define JAS_STREAM_APPEND 0x0004
+/* The stream was opened in binary mode. */
+#define JAS_STREAM_BINARY 0x0008
+/* The stream should be created/truncated. */
+#define JAS_STREAM_CREATE 0x0010
+
+
+/*
+ * Stream buffering flags.
+ */
+
+/* The stream is unbuffered. */
+#define JAS_STREAM_UNBUF 0x0000
+/* The stream is line buffered. */
+#define JAS_STREAM_LINEBUF 0x0001
+/* The stream is fully buffered. */
+#define JAS_STREAM_FULLBUF 0x0002
+/* The buffering mode mask. */
+#define JAS_STREAM_BUFMODEMASK 0x000f
+
+/* The memory associated with the buffer needs to be deallocated when the
+ stream is destroyed. */
+#define JAS_STREAM_FREEBUF 0x0008
+/* The buffer is currently being used for reading. */
+#define JAS_STREAM_RDBUF 0x0010
+/* The buffer is currently being used for writing. */
+#define JAS_STREAM_WRBUF 0x0020
+
+/*
+ * Stream error flags.
+ */
+
+/* The end-of-file has been encountered (on reading). */
+#define JAS_STREAM_EOF 0x0001
+/* An I/O error has been encountered on the stream. */
+#define JAS_STREAM_ERR 0x0002
+/* The read/write limit has been exceeded. */
+#define JAS_STREAM_RWLIMIT 0x0004
+/* The error mask. */
+#define JAS_STREAM_ERRMASK \
+ (JAS_STREAM_EOF | JAS_STREAM_ERR | JAS_STREAM_RWLIMIT)
+
+/*
+ * Other miscellaneous constants.
+ */
+
+/* The default buffer size (for fully-buffered operation). */
+#define JAS_STREAM_BUFSIZE 8192
+/* The default permission mask for file creation. */
+#define JAS_STREAM_PERMS 0666
+
+/* The maximum number of characters that can always be put back on a stream. */
+#define JAS_STREAM_MAXPUTBACK 16
+
+/******************************************************************************\
+* Types.
+\******************************************************************************/
+
+/*
+ * Generic file object.
+ */
+
+typedef void jas_stream_obj_t;
+
+/*
+ * Generic file object operations.
+ */
+
+typedef struct {
+
+ /* Read characters from a file object. */
+ int (*read_)(jas_stream_obj_t *obj, char *buf, int cnt);
+
+ /* Write characters to a file object. */
+ int (*write_)(jas_stream_obj_t *obj, char *buf, int cnt);
+
+ /* Set the position for a file object. */
+ long (*seek_)(jas_stream_obj_t *obj, long offset, int origin);
+
+ /* Close a file object. */
+ int (*close_)(jas_stream_obj_t *obj);
+
+} jas_stream_ops_t;
+
+/*
+ * Stream object.
+ */
+
+typedef struct {
+
+ /* The mode in which the stream was opened. */
+ int openmode_;
+
+ /* The buffering mode. */
+ int bufmode_;
+
+ /* The stream status. */
+ int flags_;
+
+ /* The start of the buffer area to use for reading/writing. */
+ uchar *bufbase_;
+
+ /* The start of the buffer area excluding the extra initial space for
+ character putback. */
+ uchar *bufstart_;
+
+ /* The buffer size. */
+ int bufsize_;
+
+ /* The current position in the buffer. */
+ uchar *ptr_;
+
+ /* The number of characters that must be read/written before
+ the buffer needs to be filled/flushed. */
+ int cnt_;
+
+ /* A trivial buffer to be used for unbuffered operation. */
+ uchar tinybuf_[JAS_STREAM_MAXPUTBACK + 1];
+
+ /* The operations for the underlying stream file object. */
+ jas_stream_ops_t *ops_;
+
+ /* The underlying stream file object. */
+ jas_stream_obj_t *obj_;
+
+ /* The number of characters read/written. */
+ long rwcnt_;
+
+ /* The maximum number of characters that may be read/written. */
+ long rwlimit_;
+
+} jas_stream_t;
+
+/*
+ * Regular file object.
+ */
+
+/*
+ * File descriptor file object.
+ */
+typedef struct {
+ int fd;
+ int flags;
+ char pathname[L_tmpnam + 1];
+} jas_stream_fileobj_t;
+
+#define JAS_STREAM_FILEOBJ_DELONCLOSE 0x01
+#define JAS_STREAM_FILEOBJ_NOCLOSE 0x02
+
+/*
+ * Memory file object.
+ */
+
+typedef struct {
+
+ /* The data associated with this file. */
+ uchar *buf_;
+
+ /* The allocated size of the buffer for holding file data. */
+ int bufsize_;
+
+ /* The length of the file. */
+ int_fast32_t len_;
+
+ /* The seek position. */
+ int_fast32_t pos_;
+
+ /* Is the buffer growable? */
+ int growable_;
+
+ /* Was the buffer allocated internally? */
+ int myalloc_;
+
+} jas_stream_memobj_t;
+
+/******************************************************************************\
+* Macros/functions for opening and closing streams.
+\******************************************************************************/
+
+/* Open a file as a stream. */
+jas_stream_t *jas_stream_fopen(const char *filename, const char *mode);
+
+/* Open a memory buffer as a stream. */
+jas_stream_t *jas_stream_memopen(char *buf, int bufsize);
+
+/* Open a file descriptor as a stream. */
+jas_stream_t *jas_stream_fdopen(int fd, const char *mode);
+
+/* Open a stdio stream as a stream. */
+jas_stream_t *jas_stream_freopen(const char *path, const char *mode, FILE *fp);
+
+/* Open a temporary file as a stream. */
+jas_stream_t *jas_stream_tmpfile(void);
+
+/* Close a stream. */
+int jas_stream_close(jas_stream_t *stream);
+
+/******************************************************************************\
+* Macros/functions for getting/setting the stream state.
+\******************************************************************************/
+
+/* Get the EOF indicator for a stream. */
+#define jas_stream_eof(stream) \
+ (((stream)->flags_ & JAS_STREAM_EOF) != 0)
+
+/* Get the error indicator for a stream. */
+#define jas_stream_error(stream) \
+ (((stream)->flags_ & JAS_STREAM_ERR) != 0)
+
+/* Clear the error indicator for a stream. */
+#define jas_stream_clearerr(stream) \
+ ((stream)->flags_ &= ~(JAS_STREAM_ERR | JAS_STREAM_EOF))
+
+/* Get the read/write limit for a stream. */
+#define jas_stream_getrwlimit(stream) \
+ (((const jas_stream_t *)(stream))->rwlimit_)
+
+/* Set the read/write limit for a stream. */
+int jas_stream_setrwlimit(jas_stream_t *stream, long rwlimit);
+
+/* Get the read/write count for a stream. */
+#define jas_stream_getrwcount(stream) \
+ (((const jas_stream_t *)(stream))->rwcnt_)
+
+/* Set the read/write count for a stream. */
+long jas_stream_setrwcount(jas_stream_t *stream, long rwcnt);
+
+/******************************************************************************\
+* Macros/functions for I/O.
+\******************************************************************************/
+
+/* Read a character from a stream. */
+#if defined(DEBUG)
+#define jas_stream_getc(stream) jas_stream_getc_func(stream)
+#else
+#define jas_stream_getc(stream) jas_stream_getc_macro(stream)
+#endif
+
+/* Write a character to a stream. */
+#if defined(DEBUG)
+#define jas_stream_putc(stream, c) jas_stream_putc_func(stream, c)
+#else
+#define jas_stream_putc(stream, c) jas_stream_putc_macro(stream, c)
+#endif
+
+/* Read characters from a stream into a buffer. */
+int jas_stream_read(jas_stream_t *stream, void *buf, int cnt);
+
+/* Write characters from a buffer to a stream. */
+int jas_stream_write(jas_stream_t *stream, const void *buf, int cnt);
+
+/* Write formatted output to a stream. */
+int jas_stream_printf(jas_stream_t *stream, const char *fmt, ...);
+
+/* Write a string to a stream. */
+int jas_stream_puts(jas_stream_t *stream, const char *s);
+
+/* Read a line of input from a stream. */
+char *jas_stream_gets(jas_stream_t *stream, char *buf, int bufsize);
+
+/* Look at the next character to be read from a stream without actually
+ removing it from the stream. */
+#define jas_stream_peekc(stream) \
+ (((stream)->cnt_ <= 0) ? jas_stream_fillbuf(stream, 0) : \
+ ((int)(*(stream)->ptr_)))
+
+/* Put a character back on a stream. */
+int jas_stream_ungetc(jas_stream_t *stream, int c);
+
+/******************************************************************************\
+* Macros/functions for getting/setting the stream position.
+\******************************************************************************/
+
+/* Is it possible to seek on this stream? */
+int jas_stream_isseekable(jas_stream_t *stream);
+
+/* Set the current position within the stream. */
+long jas_stream_seek(jas_stream_t *stream, long offset, int origin);
+
+/* Get the current position within the stream. */
+long jas_stream_tell(jas_stream_t *stream);
+
+/* Seek to the beginning of a stream. */
+int jas_stream_rewind(jas_stream_t *stream);
+
+/******************************************************************************\
+* Macros/functions for flushing.
+\******************************************************************************/
+
+/* Flush any pending output to a stream. */
+int jas_stream_flush(jas_stream_t *stream);
+
+/******************************************************************************\
+* Miscellaneous macros/functions.
+\******************************************************************************/
+
+/* Copy data from one stream to another. */
+int jas_stream_copy(jas_stream_t *dst, jas_stream_t *src, int n);
+
+/* Display stream contents (for debugging purposes). */
+int jas_stream_display(jas_stream_t *stream, FILE *fp, int n);
+
+/* Consume (i.e., discard) characters from stream. */
+int jas_stream_gobble(jas_stream_t *stream, int n);
+
+/* Write a character multiple times to a stream. */
+int jas_stream_pad(jas_stream_t *stream, int n, int c);
+
+/* Get the size of the file associated with the specified stream.
+ The specified stream must be seekable. */
+long jas_stream_length(jas_stream_t *stream);
+
+/******************************************************************************\
+* Internal functions.
+\******************************************************************************/
+
+/* The following functions are for internal use only! If you call them
+directly, you will die a horrible, miserable, and painful death! */
+
+/* Read a character from a stream. */
+#define jas_stream_getc_macro(stream) \
+ ((!((stream)->flags_ & (JAS_STREAM_ERR | JAS_STREAM_EOF | \
+ JAS_STREAM_RWLIMIT))) ? \
+ (((stream)->rwlimit_ >= 0 && (stream)->rwcnt_ >= (stream)->rwlimit_) ? \
+ (stream->flags_ |= JAS_STREAM_RWLIMIT, EOF) : \
+ jas_stream_getc2(stream)) : EOF)
+#define jas_stream_getc2(stream) \
+ ((--(stream)->cnt_ < 0) ? jas_stream_fillbuf(stream, 1) : \
+ (++(stream)->rwcnt_, (int)(*(stream)->ptr_++)))
+
+/* Write a character to a stream. */
+#define jas_stream_putc_macro(stream, c) \
+ ((!((stream)->flags_ & (JAS_STREAM_ERR | JAS_STREAM_EOF | \
+ JAS_STREAM_RWLIMIT))) ? \
+ (((stream)->rwlimit_ >= 0 && (stream)->rwcnt_ >= (stream)->rwlimit_) ? \
+ (stream->flags_ |= JAS_STREAM_RWLIMIT, EOF) : \
+ jas_stream_putc2(stream, c)) : EOF)
+#define jas_stream_putc2(stream, c) \
+ (((stream)->bufmode_ |= JAS_STREAM_WRBUF, --(stream)->cnt_ < 0) ? \
+ jas_stream_flushbuf((stream), (uchar)(c)) : \
+ (++(stream)->rwcnt_, (int)(*(stream)->ptr_++ = (c))))
+
+/* These prototypes need to be here for the sake of the stream_getc and
+stream_putc macros. */
+int jas_stream_fillbuf(jas_stream_t *stream, int getflag);
+int jas_stream_flushbuf(jas_stream_t *stream, int c);
+int jas_stream_getc_func(jas_stream_t *stream);
+int jas_stream_putc_func(jas_stream_t *stream, int c);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
projects / opencv / blobdiff