src/format_fuji.c

   1 /*
   2  *  GQView
   3  *  (C) 2005 John Ellis
   4  *
   5  *  Authors:
   6  *    Original version 2005 Lars Ellenberg, base on dcraw by David coffin.
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13 #ifdef HAVE_CONFIG_H
  14 #  include "config.h"
  15 #endif
  16
  17
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <unistd.h>
  21
  22 #include <glib.h>
  23
  24 #include "intl.h"
  25
  26 #include "format_fuji.h"
  27 #include "format_raw.h"
  28
  29 #include "exif.h"
  30
  31
  32 /*
  33  *-----------------------------------------------------------------------------
  34  * Raw (RAF) embedded jpeg extraction for Fujifilm
  35  *-----------------------------------------------------------------------------
  36  */
  37
  38
  39 gint format_fuji_raw(unsigned char *data, const guint len,
  40                      guint *image_offset, guint *exif_offset)
  41 {
  42         guint io;
  43         guint eo;
  44
  45         if (len < 128 ||
  46             memcmp(data, "FUJIFILM", 8) != 0)
  47                 {
  48                 return FALSE;
  49                 }
  50
  51         io = GUINT32_FROM_BE(*(guint32*)(data + 84));
  52         eo = *image_offset + 12;
  53
  54         /* verify jpeg marker */
  55         if (memcmp(data + io, "\xff\xd8\xff\xe1", 4) != 0)
  56                 {
  57                 return FALSE;
  58                 }
  59
  60         if (image_offset) *image_offset = io;
  61         if (exif_offset) *exif_offset = eo;
  62
  63         printf("raw Fuji format file\n");
  64
  65         return TRUE;
  66 }
  67
  68
  69 /*
  70  *-----------------------------------------------------------------------------
  71  * EXIF Makernote for Fujifilm
  72  *-----------------------------------------------------------------------------
  73  */
  74
  75 static ExifTextList FujiTagSharpness[] = {
  76         { 1,    "soft" },
  77         { 2,    "soft" },
  78         { 3,    "normal" },
  79         { 4,    "hard" },
  80         { 5,    "hard" },
  81         EXIF_TEXT_LIST_END
  82 };
  83
  84 static ExifTextList FujiTagWhiteBalance[]= {
  85         { 0,    "auto" },
  86         { 256,  "daylight" },
  87         { 512,  "cloudy" },
  88         { 768,  "daylight color-fluorescence" },
  89         { 769,  "daywhite color-fluorescence" },
  90         { 770,  "white-fluorescence" },
  91         { 1024, "incandescent" },
  92         { 3840, "custom" },
  93         EXIF_TEXT_LIST_END
  94 };
  95
  96 static ExifTextList FujiTagColorTone[]= {
  97         { 0,    "normal" },
  98         { 256,  "high" },
  99         { 512,  "low" },
 100         EXIF_TEXT_LIST_END
 101 };
 102
 103 static ExifTextList FujiTagFlashMode[]= {
 104         { 0,    "auto" },
 105         { 1,    "on" },
 106         { 2,    "off" },
 107         { 3,    "red-eye reduction" },
 108         EXIF_TEXT_LIST_END
 109 };
 110
 111 static ExifTextList FujiTagOffOn[]= {
 112         { 0,    "off" },
 113         { 1,    "on" },
 114         EXIF_TEXT_LIST_END
 115 };
 116
 117 static ExifTextList FujiTagFocusMode[]= {
 118         { 0,    "auto" },
 119         { 1,    "manual" },
 120         EXIF_TEXT_LIST_END
 121 };
 122
 123 static ExifTextList FujiTagPictureMode[]= {
 124         { 0,    "auto" },
 125         { 1,    "portrait" },
 126         { 2,    "landscape" },
 127         { 4,    "sports" },
 128         { 5,    "night" },
 129         { 6,    "program AE" },
 130         { 256,  "aperture priority AE" },
 131         { 512,  "shutter priority AE" },
 132         { 768,  "manual" },
 133         EXIF_TEXT_LIST_END
 134 };
 135
 136 static ExifTextList FujiTagNoYes[]= {
 137         { 0,    "no" },
 138         { 1,    "yes" },
 139         EXIF_TEXT_LIST_END
 140 };
 141
 142 #if 0
 143 static ExifTextList FujiTag[]= {
 144         { ,     "" },
 145         { ,     "" },
 146         EXIF_TEXT_LIST_END
 147 };
 148 #endif
 149
 150
 151 static ExifMarker FujiExifMarkersList[] = {
 152 { 0x1000,       EXIF_FORMAT_STRING, 8,          "Fuji.Quality",         "Quality",      NULL },
 153 { 0x1001,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.Sharpness",       "Sharpness",    FujiTagSharpness },
 154 { 0x1002,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.WhiteBalance",    "White balance",FujiTagWhiteBalance },
 155 { 0x1003,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.Color",           "Color",        FujiTagColorTone },
 156 { 0x1004,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.Tone",            "Tone",         FujiTagColorTone },
 157 { 0x1010,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.FlashMode",       "Flash mode",   FujiTagFlashMode },
 158 { 0x1011,       EXIF_FORMAT_RATIONAL, 1,        "Fuji.FlashStrength",   "Flash strength", NULL },
 159 { 0x1020,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.Macro",           "Macro",        FujiTagOffOn },
 160 { 0x1021,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.FocusMode",       "Focus mode",   FujiTagFocusMode },
 161 { 0x1030,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.SlowSync",        "Slow synchro", FujiTagOffOn },
 162 { 0x1031,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.PictureMode",     "Picture mode", FujiTagPictureMode },
 163 { 0x1100,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.ContTake/Bracket",
 164                                                         "Continuous / Auto bracket",    FujiTagOffOn },
 165 { 0x1300,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.BlurWarning",     "Blue warning", FujiTagNoYes },
 166 { 0x1301,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.FocusWarning",    "Focus warning",FujiTagNoYes },
 167 { 0x1302,       EXIF_FORMAT_SHORT_UNSIGNED, 1,  "Fuji.AEWarning",       "AE warning",   FujiTagNoYes },
 168 EXIF_MARKER_LIST_END
 169 };
 170
 171
 172
 173 gint format_fuji_makernote(ExifData *exif, unsigned char *tiff, guint offset,
 174                            guint size, ExifByteOrder bo)
 175 {
 176         unsigned char *data;
 177         guint ifdstart;
 178
 179         if (offset + 8 + 4 >= size) return FALSE;
 180
 181         data = tiff + offset;
 182
 183         /* Fuji tag format starts with "FUJIFILM",
 184          * followed by 4 bytes indicating offset to IFD directory using Fuji tags,
 185          * byte order is always little endian (II).
 186          */
 187         if (memcmp(data, "FUJIFILM", 8) != 0) return FALSE;
 188
 189         ifdstart = exif_byte_get_int32(data + 8, EXIF_BYTE_ORDER_INTEL);
 190         if (offset + ifdstart >= size) return FALSE;
 191
 192         if (exif_parse_IFD_table(exif, tiff + offset, ifdstart, size - offset,
 193                                  EXIF_BYTE_ORDER_INTEL, 0, FujiExifMarkersList) != 0)
 194                 {
 195                 return FALSE;
 196                 }
 197
 198         return TRUE;
 199 }
 200