Add libexif to deps/third_party.

libexif/sources/libexif/exif-utils.h

+/*! \file exif-utils.h
+ *  \brief EXIF data manipulation functions and types 
+ */
+/*
+ * 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.
+ */
+
+#ifndef __EXIF_UTILS_H__
+#define __EXIF_UTILS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <libexif/exif-byte-order.h>
+#include <libexif/exif-format.h>
+#include <libexif/_stdint.h>
+#include "config.h"
+
+
+/* If these definitions don't work for you, please let us fix the 
+ * macro generating _stdint.h */
+
+/*! EXIF Unsigned Byte data type */
+typedef unsigned char   ExifByte;          /* 1 byte  */
+        
+/*! EXIF Signed Byte data type */
+typedef signed char     ExifSByte;         /* 1 byte  */
+        
+/*! EXIF Text String data type */
+typedef char *          ExifAscii;
+        
+/*! EXIF Unsigned Short data type */
+typedef uint16_t        ExifShort;         /* 2 bytes */
+        
+/*! EXIF Signed Short data type */
+typedef int16_t         ExifSShort;        /* 2 bytes */
+        
+/*! EXIF Unsigned Long data type */
+typedef uint32_t        ExifLong;          /* 4 bytes */
+        
+/*! EXIF Signed Long data type */
+typedef int32_t         ExifSLong;         /* 4 bytes */
+
+/*! EXIF Unsigned Rational data type */
+typedef struct {ExifLong numerator; ExifLong denominator;} ExifRational;
+
+typedef char            ExifUndefined;     /* 1 byte  */
+
+/*! EXIF Signed Rational data type */
+typedef struct {ExifSLong numerator; ExifSLong denominator;} ExifSRational;
+
+
+/*! Retrieve an #ExifShort value from memory.
+ *
+ * \param[in] b pointer to raw EXIF value in memory
+ * \param[in] order byte order of raw value
+ * \return value
+ */
+ExifShort     exif_get_short     (const unsigned char *b, ExifByteOrder order);
+
+/*! Retrieve an #ExifSShort value from memory.
+ *
+ * \param[in] b pointer to raw EXIF value in memory
+ * \param[in] order byte order of raw value
+ * \return value
+ */
+ExifSShort    exif_get_sshort    (const unsigned char *b, ExifByteOrder order);
+
+/*! Retrieve an #ExifLong value from memory.
+ *
+ * \param[in] b pointer to raw EXIF value in memory
+ * \param[in] order byte order of raw value
+ * \return value
+ */
+ExifLong      exif_get_long      (const unsigned char *b, ExifByteOrder order);
+
+/*! Retrieve an #ExifSLong value from memory.
+ *
+ * \param[in] b pointer to raw EXIF value in memory
+ * \param[in] order byte order of raw value
+ * \return value
+ */
+ExifSLong     exif_get_slong     (const unsigned char *b, ExifByteOrder order);
+
+/*! Retrieve an #ExifRational value from memory.
+ *
+ * \param[in] b pointer to raw EXIF value in memory
+ * \param[in] order byte order of raw value
+ * \return value
+ */
+ExifRational  exif_get_rational  (const unsigned char *b, ExifByteOrder order);
+
+/*! Retrieve an #ExifSRational value from memory.
+ *
+ * \param[in] b pointer to raw EXIF value in memory
+ * \param[in] order byte order of raw value
+ * \return value
+ */
+ExifSRational exif_get_srational (const unsigned char *b, ExifByteOrder order);
+
+/*! Store an ExifShort value into memory in EXIF format.
+ *
+ * \param[out] b buffer in which to write raw value
+ * \param[in] order byte order to use
+ * \param[in] value data value to store
+ */
+void exif_set_short     (unsigned char *b, ExifByteOrder order,
+                         ExifShort value);
+
+/*! Store an ExifSShort value into memory in EXIF format.
+ *
+ * \param[out] b buffer in which to write raw value
+ * \param[in] order byte order to use
+ * \param[in] value data value to store
+ */
+void exif_set_sshort    (unsigned char *b, ExifByteOrder order,
+                         ExifSShort value);
+
+/*! Store an ExifLong value into memory in EXIF format.
+ *
+ * \param[out] b buffer in which to write raw value
+ * \param[in] order byte order to use
+ * \param[in] value data value to store
+ */
+void exif_set_long      (unsigned char *b, ExifByteOrder order,
+                         ExifLong value);
+
+/*! Store an ExifSLong value into memory in EXIF format.
+ *
+ * \param[out] b buffer in which to write raw value
+ * \param[in] order byte order to use
+ * \param[in] value data value to store
+ */
+void exif_set_slong     (unsigned char *b, ExifByteOrder order,
+                         ExifSLong value);
+
+/*! Store an ExifRational value into memory in EXIF format.
+ *
+ * \param[out] b buffer in which to write raw value
+ * \param[in] order byte order to use
+ * \param[in] value data value to store
+ */
+void exif_set_rational  (unsigned char *b, ExifByteOrder order,
+                         ExifRational value);
+
+/*! Store an ExifSRational value into memory in EXIF format.
+ *
+ * \param[out] b buffer in which to write raw value
+ * \param[in] order byte order to use
+ * \param[in] value data value to store
+ */
+void exif_set_srational (unsigned char *b, ExifByteOrder order,
+                         ExifSRational value);
+
+/*! \internal */
+void exif_convert_utf16_to_utf8 (char *out, const unsigned short *in, int maxlen);
+
+/* Please do not use this function outside of the library. */
+
+/*! \internal */
+void exif_array_set_byte_order (ExifFormat, unsigned char *, unsigned int,
+                ExifByteOrder o_orig, ExifByteOrder o_new);
+
+#undef  MIN
+#define MIN(a, b)  (((a) < (b)) ? (a) : (b))
+
+#undef  MAX
+#define MAX(a, b)  (((a) > (b)) ? (a) : (b))
+
+/* For compatibility with older versions */
+
+/*! \deprecated Use EXIF_TAG_SUB_SEC_TIME instead. */
+#define EXIF_TAG_SUBSEC_TIME EXIF_TAG_SUB_SEC_TIME
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __EXIF_UTILS_H__ */