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comparison mupdf-source/thirdparty/leptonica/src/bbuffer.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*====================================================================*
2 - Copyright (C) 2001 Leptonica. All rights reserved.
3 -
4 - Redistribution and use in source and binary forms, with or without
5 - modification, are permitted provided that the following conditions
6 - are met:
7 - 1. Redistributions of source code must retain the above copyright
8 - notice, this list of conditions and the following disclaimer.
9 - 2. Redistributions in binary form must reproduce the above
10 - copyright notice, this list of conditions and the following
11 - disclaimer in the documentation and/or other materials
12 - provided with the distribution.
13 -
14 - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
18 - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
23 - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *====================================================================*/
26
27 #ifndef LEPTONICA_BBUFFER_H
28 #define LEPTONICA_BBUFFER_H
29
30 /*!
31 * \file bbuffer.h
32 *
33 * <pre>
34 * Expandable byte buffer for reading data in from memory and
35 * writing data out to other memory.
36 *
37 * This implements a queue of bytes, so data read in is put
38 * on the "back" of the queue (i.e., the end of the byte array)
39 * and data written out is taken from the "front" of the queue
40 * (i.e., from an index marker "nwritten" that is initially set at
41 * the beginning of the array.) As usual with expandable
42 * arrays, we keep the size of the allocated array and the
43 * number of bytes that have been read into the array.
44 *
45 * For implementation details, see bbuffer.c.
46 * </pre>
47 */
48
49 /*! Expandable byte buffer for memory read/write operations */
50 struct L_ByteBuffer
51 {
52 l_int32 nalloc; /*!< size of allocated byte array */
53 l_int32 n; /*!< number of bytes read into to the array */
54 l_int32 nwritten; /*!< number of bytes written from the array */
55 l_uint8 *array; /*!< byte array */
56 };
57 typedef struct L_ByteBuffer L_BBUFFER;
58
59
60 #endif /* LEPTONICA_BBUFFER_H */