ebcc-sys 0.1.0

Low-level Rust bindings to the EBCC compressor
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 *
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

/*
 * TIFF Library.
 */
#include "tiffiop.h"
#include <string.h>

/************************************************************************/
/*                            TIFFCleanup()                             */
/************************************************************************/

/**
 * Auxiliary function to free the TIFF structure. Given structure will be
 * completely freed, so you should save opened file handle and pointer
 * to the close procedure in external variables before calling
 * _TIFFCleanup(), if you will need these ones to close the file.
 *
 * @param tif A TIFF pointer.
 */

void TIFFCleanup(TIFF *tif)
{
    /*
     * Flush buffered data and directory (if dirty).
     */
    if (tif->tif_mode != O_RDONLY)
        TIFFFlush(tif);
    (*tif->tif_cleanup)(tif);
    TIFFFreeDirectory(tif);

    _TIFFCleanupIFDOffsetAndNumberMaps(tif);

    /*
     * Clean up client info links.
     */
    while (tif->tif_clientinfo)
    {
        TIFFClientInfoLink *psLink = tif->tif_clientinfo;

        tif->tif_clientinfo = psLink->next;
        _TIFFfreeExt(tif, psLink->name);
        _TIFFfreeExt(tif, psLink);
    }

    if (tif->tif_rawdata && (tif->tif_flags & TIFF_MYBUFFER))
        _TIFFfreeExt(tif, tif->tif_rawdata);
    if (isMapped(tif))
        TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);

    /*
     * Clean up custom fields.
     */
    if (tif->tif_fields && tif->tif_nfields > 0)
    {
        uint32_t i;

        for (i = 0; i < tif->tif_nfields; i++)
        {
            TIFFField *fld = tif->tif_fields[i];
            if (fld->field_name != NULL)
            {
                if (fld->field_bit == FIELD_CUSTOM &&
                    /* caution: tif_fields[i] must not be the beginning of a
                     * fields-array. Otherwise the following tags are also freed
                     * with the first free().
                     */
                    TIFFFieldIsAnonymous(fld))
                {
                    _TIFFfreeExt(tif, fld->field_name);
                    _TIFFfreeExt(tif, fld);
                }
            }
        }

        _TIFFfreeExt(tif, tif->tif_fields);
    }

    if (tif->tif_nfieldscompat > 0)
    {
        uint32_t i;

        for (i = 0; i < tif->tif_nfieldscompat; i++)
        {
            if (tif->tif_fieldscompat[i].allocated_size)
                _TIFFfreeExt(tif, tif->tif_fieldscompat[i].fields);
        }
        _TIFFfreeExt(tif, tif->tif_fieldscompat);
    }

    _TIFFfreeExt(NULL, tif);
}

/************************************************************************/
/*                    _TIFFCleanupIFDOffsetAndNumberMaps()              */
/************************************************************************/

void _TIFFCleanupIFDOffsetAndNumberMaps(TIFF *tif)
{
    if (tif->tif_map_dir_offset_to_number)
    {
        TIFFHashSetDestroy(tif->tif_map_dir_offset_to_number);
        tif->tif_map_dir_offset_to_number = NULL;
    }
    if (tif->tif_map_dir_number_to_offset)
    {
        TIFFHashSetDestroy(tif->tif_map_dir_number_to_offset);
        tif->tif_map_dir_number_to_offset = NULL;
    }
}

/************************************************************************/
/*                            TIFFClose()                               */
/************************************************************************/

/**
 * Close a previously opened TIFF file.
 *
 * TIFFClose closes a file that was previously opened with TIFFOpen().
 * Any buffered data are flushed to the file, including the contents of
 * the current directory (if modified); and all resources are reclaimed.
 *
 * @param tif A TIFF pointer.
 */

void TIFFClose(TIFF *tif)
{
    if (tif != NULL)
    {
        TIFFCloseProc closeproc = tif->tif_closeproc;
        thandle_t fd = tif->tif_clientdata;

        TIFFCleanup(tif);
        (void)(*closeproc)(fd);
    }
}