Add libexif to deps/third_party.

libexif/sources/libexif/exif-format.c

+/* exif-format.c
+ *
+ * Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details. 
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301  USA.
+ */
+
+#include <config.h>
+
+#include <libexif/exif-format.h>
+#include <libexif/i18n.h>
+
+#include <stdlib.h>
+
+/*! Table of data format types, descriptions and sizes.
+ * This table should be sorted in decreasing order of popularity in order
+ * to decrease the total average lookup time.
+ */
+static const struct {
+        ExifFormat format;
+        const char *name;
+        unsigned char size;
+} ExifFormatTable[] = {
+        {EXIF_FORMAT_SHORT,     N_("Short"),     2},
+        {EXIF_FORMAT_RATIONAL,  N_("Rational"),  8},
+        {EXIF_FORMAT_SRATIONAL, N_("SRational"), 8},
+        {EXIF_FORMAT_UNDEFINED, N_("Undefined"), 1},
+        {EXIF_FORMAT_ASCII,     N_("ASCII"),     1},
+        {EXIF_FORMAT_LONG,      N_("Long"),      4},
+        {EXIF_FORMAT_BYTE,      N_("Byte"),      1},
+        {EXIF_FORMAT_SBYTE,     N_("SByte"),     1},
+        {EXIF_FORMAT_SSHORT,    N_("SShort"),    2},
+        {EXIF_FORMAT_SLONG,     N_("SLong"),     4},
+        {EXIF_FORMAT_FLOAT,     N_("Float"),     4},
+        {EXIF_FORMAT_DOUBLE,    N_("Double"),    8},
+        {0, NULL, 0}
+};
+
+const char *
+exif_format_get_name (ExifFormat format)
+{
+        unsigned int i;
+
+        /* FIXME: This belongs to somewhere else. */
+        /* libexif should use the default system locale.
+         * If an application specifically requires UTF-8, then we
+         * must give the application a way to tell libexif that.
+         * 
+         * bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+         */
+#if defined(BIND_TEXTDOMAIN)
+        bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+#endif
+        for (i = 0; ExifFormatTable[i].name; i++)
+                if (ExifFormatTable[i].format == format)
+                        return _(ExifFormatTable[i].name);
+        return NULL;
+}
+
+unsigned char
+exif_format_get_size (ExifFormat format)
+{
+        unsigned int i;
+
+        for (i = 0; ExifFormatTable[i].size; i++)
+                if (ExifFormatTable[i].format == format)
+                        return ExifFormatTable[i].size;
+        return 0;
+}