1 /* exif-format.c
2 *
3 * Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301 USA.
19 *
20 * SPDX-License-Identifier: LGPL-2.0-or-later
21 */
22
23 #include <config.h>
24
25 #include <libexif/exif-format.h>
26 #include <libexif/i18n.h>
27
28 #include <stdlib.h>
29
30 /*! Table of data format types, descriptions and sizes.
31 * This table should be sorted in decreasing order of popularity in order
32 * to decrease the total average lookup time.
33 */
34 static const struct {
35 ExifFormat format;
36 const char *name;
37 unsigned char size;
38 } ExifFormatTable[] = {
39 {EXIF_FORMAT_SHORT, N_("Short"), 2},
40 {EXIF_FORMAT_RATIONAL, N_("Rational"), 8},
41 {EXIF_FORMAT_SRATIONAL, N_("SRational"), 8},
42 {EXIF_FORMAT_UNDEFINED, N_("Undefined"), 1},
43 {EXIF_FORMAT_ASCII, N_("ASCII"), 1},
44 {EXIF_FORMAT_LONG, N_("Long"), 4},
45 {EXIF_FORMAT_BYTE, N_("Byte"), 1},
46 {EXIF_FORMAT_SBYTE, N_("SByte"), 1},
47 {EXIF_FORMAT_SSHORT, N_("SShort"), 2},
48 {EXIF_FORMAT_SLONG, N_("SLong"), 4},
49 {EXIF_FORMAT_FLOAT, N_("Float"), 4},
50 {EXIF_FORMAT_DOUBLE, N_("Double"), 8},
51 {0, NULL, 0}
52 };
53
54 const char *
exif_format_get_name(ExifFormat format)55 exif_format_get_name (ExifFormat format)
56 {
57 unsigned int i;
58
59 (void) bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
60
61 for (i = 0; ExifFormatTable[i].name; i++)
62 if (ExifFormatTable[i].format == format)
63 return _(ExifFormatTable[i].name);
64 return NULL;
65 }
66
67 unsigned char
exif_format_get_size(ExifFormat format)68 exif_format_get_size (ExifFormat format)
69 {
70 unsigned int i;
71
72 for (i = 0; ExifFormatTable[i].size; i++)
73 if (ExifFormatTable[i].format == format)
74 return ExifFormatTable[i].size;
75 return 0;
76 }
77