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* Copyright (c) 2010, Roland Karlsson (roland@proxel.se)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     * Neither the name of the organization nor the
*       names of its contributors may be used to endorse or promote products
*       derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ROLAND KARLSSON ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ROLAND KARLSSON BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

  /* From X3F_IO.H */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include "../libraw/libraw_datastream.h"

#define SIZE_UNIQUE_IDENTIFIER 16
#define SIZE_WHITE_BALANCE 32
#define NUM_EXT_DATA 32

#define X3F_VERSION(MAJ,MIN) (uint32_t)(((MAJ)<<16) + MIN)
#define X3F_VERSION_2_0 X3F_VERSION(2,0)
#define X3F_VERSION_2_1 X3F_VERSION(2,1)

/* Main file identifier */
#define X3F_FOVb (uint32_t)(0x62564f46)
/* Directory identifier */
#define X3F_SECd (uint32_t)(0x64434553)
/* Property section identifiers */
#define X3F_PROP (uint32_t)(0x504f5250)
#define X3F_SECp (uint32_t)(0x70434553)
/* Image section identifiers */
#define X3F_IMAG (uint32_t)(0x46414d49)
#define X3F_IMA2 (uint32_t)(0x32414d49)
#define X3F_SECi (uint32_t)(0x69434553)
/* CAMF identifiers */
#define X3F_CAMF (uint32_t)(0x464d4143)
#define X3F_SECc (uint32_t)(0x63434553)
/* CAMF entry identifiers */
#define X3F_CMbP (uint32_t)(0x50624d43)
#define X3F_CMbT (uint32_t)(0x54624d43)
#define X3F_CMbM (uint32_t)(0x4d624d43)
#define X3F_CMb  (uint32_t)(0x00624d43)

#define X3F_IMAGE_THUMB_PLAIN       (uint32_t)(0x00020003)
#define X3F_IMAGE_THUMB_HUFFMAN     (uint32_t)(0x0002000b)
#define X3F_IMAGE_THUMB_JPEG        (uint32_t)(0x00020012)

#define X3F_IMAGE_RAW_HUFFMAN_X530  (uint32_t)(0x00030005)
#define X3F_IMAGE_RAW_HUFFMAN_10BIT (uint32_t)(0x00030006)
#define X3F_IMAGE_RAW_TRUE          (uint32_t)(0x0003001e)
#define X3F_IMAGE_RAW_MERRILL       (uint32_t)(0x0001001e)
#define X3F_IMAGE_RAW_QUATTRO       (uint32_t)(0x00010023)

#define X3F_IMAGE_HEADER_SIZE 28
#define X3F_CAMF_HEADER_SIZE 28
#define X3F_PROPERTY_LIST_HEADER_SIZE 24

typedef uint16_t utf16_t;

typedef int bool_t;

typedef enum x3f_extended_types_e {
  X3F_EXT_TYPE_NONE=0,
  X3F_EXT_TYPE_EXPOSURE_ADJUST=1,
  X3F_EXT_TYPE_CONTRAST_ADJUST=2,
  X3F_EXT_TYPE_SHADOW_ADJUST=3,
  X3F_EXT_TYPE_HIGHLIGHT_ADJUST=4,
  X3F_EXT_TYPE_SATURATION_ADJUST=5,
  X3F_EXT_TYPE_SHARPNESS_ADJUST=6,
  X3F_EXT_TYPE_RED_ADJUST=7,
  X3F_EXT_TYPE_GREEN_ADJUST=8,
  X3F_EXT_TYPE_BLUE_ADJUST=9,
  X3F_EXT_TYPE_FILL_LIGHT_ADJUST=10
} x3f_extended_types_t;

typedef struct x3f_property_s {
  /* Read from file */
  uint32_t name_offset;
  uint32_t value_offset;

  /* Computed */
  utf16_t *name;		/* 0x00 terminated UTF 16 */
  utf16_t *value;               /* 0x00 terminated UTF 16 */
} x3f_property_t;

typedef struct x3f_property_table_s {
  uint32_t size;
  x3f_property_t *element;
} x3f_property_table_t;

typedef struct x3f_property_list_s {
  /* 2.0 Fields */
  uint32_t num_properties;
  uint32_t character_format;
  uint32_t reserved;
  uint32_t total_length;

  x3f_property_table_t property_table;

  void *data;

  uint32_t data_size;