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Issue 10535156: Add libexif to deps/third_party. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/
Patch Set: Created 8 years, 6 months ago
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1 /* mnote-canon-entry.c
2 *
3 * Copyright (c) 2002 Lutz Mueller <lutz@users.sourceforge.net>
4 * Copyright (c) 2003 Matthieu Castet <mat-c@users.sourceforge.net>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301 USA.
20 */
21
22 #include "config.h"
23 #include "mnote-canon-entry.h"
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <math.h>
29
30 #include <libexif/exif-format.h>
31 #include <libexif/exif-utils.h>
32 #include <libexif/i18n.h>
33
34 /* #define DEBUG */
35
36 #define CF(format,target,v,maxlen) \
37 { \
38 if (format != target) { \
39 snprintf (v, maxlen, \
40 _("Invalid format '%s', " \
41 "expected '%s'."), \
42 exif_format_get_name (format), \
43 exif_format_get_name (target)); \
44 break; \
45 } \
46 }
47
48 #define CC(number,target,v,maxlen) \
49 { \
50 if (number != target) { \
51 snprintf (v, maxlen, \
52 _("Invalid number of components (%i, " \
53 "expected %i)."), (int) number, (int) target); \
54 break; \
55 } \
56 }
57 #define CC2(number,t1,t2,v,maxlen) \
58 { \
59 if ((number != t1) && (number != t2)) { \
60 snprintf (v, maxlen, \
61 _("Invalid number of components (%i, " \
62 "expected %i or %i)."), (int) number, \
63 (int) t1, (int) t2); \
64 break; \
65 } \
66 }
67
68 #define UNDEFINED 0xFF
69
70 static const struct canon_entry_table_t {
71 unsigned int subtag;
72 ExifShort value;
73 const char *name;
74 } entries_settings_1 [] = {
75 #ifndef NO_VERBOSE_TAG_DATA
76 { 0, 1, N_("Macro")},
77 { 0, 2, N_("Normal")},
78 { 2, 1, N_("Economy")},
79 { 2, 2, N_("Normal")},
80 { 2, 3, N_("Fine")},
81 { 2, 4, N_("RAW")},
82 { 2, 5, N_("Superfine")},
83 { 3, 0, N_("Off")},
84 { 3, 1, N_("Auto")},
85 { 3, 2, N_("On")},
86 { 3, 3, N_("Red-eye reduction")},
87 { 3, 4, N_("Slow synchro")},
88 { 3, 5, N_("Auto, red-eye reduction")},
89 { 3, 6, N_("On, red-eye reduction")},
90 { 3, 16, N_("External flash")},
91 { 4, 0, N_("Single")},
92 { 4, 1, N_("Continuous")},
93 { 4, 2, N_("Movie")},
94 { 4, 3, N_("Continuous, speed priority")},
95 { 4, 4, N_("Continuous, low")},
96 { 4, 5, N_("Continuous, high")},
97 { 6, 0, N_("One-shot AF")},
98 { 6, 1, N_("AI servo AF")},
99 { 6, 2, N_("AI focus AF")},
100 { 6, 3, N_("Manual focus")},
101 { 6, 4, N_("Single")},
102 { 6, 5, N_("Continuous")},
103 { 6, 6, N_("Manual focus")},
104 { 6, 16, N_("Pan focus")},
105 { 8, 1, N_("JPEG")},
106 { 8, 2, N_("CRW+THM")},
107 { 8, 3, N_("AVI+THM")},
108 { 8, 4, N_("TIF")},
109 { 8, 5, N_("TIF+JPEG")},
110 { 8, 6, N_("CR2")},
111 { 8, 7, N_("CR2+JPEG")},
112 { 9, 0, N_("Large")},
113 { 9, 1, N_("Medium")},
114 { 9, 2, N_("Small")},
115 { 9, 5, N_("Medium 1")},
116 { 9, 6, N_("Medium 2")},
117 { 9, 7, N_("Medium 3")},
118 { 9, 8, N_("Postcard")},
119 { 9, 9, N_("Widescreen")},
120 {10, 0, N_("Full auto")},
121 {10, 1, N_("Manual")},
122 {10, 2, N_("Landscape")},
123 {10, 3, N_("Fast shutter")},
124 {10, 4, N_("Slow shutter")},
125 {10, 5, N_("Night")},
126 {10, 6, N_("Grayscale")},
127 {10, 7, N_("Sepia")},
128 {10, 8, N_("Portrait")},
129 {10, 9, N_("Sports")},
130 {10, 10, N_("Macro")},
131 {10, 11, N_("Black & white")},
132 {10, 12, N_("Pan focus")},
133 {10, 13, N_("Vivid")},
134 {10, 14, N_("Neutral")},
135 {10, 15, N_("Flash off")},
136 {10, 16, N_("Long shutter")},
137 {10, 17, N_("Super macro")},
138 {10, 18, N_("Foliage")},
139 {10, 19, N_("Indoor")},
140 {10, 20, N_("Fireworks")},
141 {10, 21, N_("Beach")},
142 {10, 22, N_("Underwater")},
143 {10, 23, N_("Snow")},
144 {10, 24, N_("Kids & pets")},
145 {10, 25, N_("Night snapshot")},
146 {10, 26, N_("Digital macro")},
147 {10, 27, N_("My colors")},
148 {10, 28, N_("Still image")},
149 {10, 30, N_("Color accent")},
150 {10, 31, N_("Color swap")},
151 {10, 32, N_("Aquarium")},
152 {10, 33, N_("ISO 3200")},
153 {11, 0, N_("None")},
154 {11, 1, N_("2x")},
155 {11, 2, N_("4x")},
156 {11, 3, N_("Other")},
157 {12, 0x0000, N_("Normal")},
158 {12, 0x0001, N_("High")},
159 {12, 0xffff, N_("Low")},
160 {13, 0x0000, N_("Normal")},
161 {13, 0x0001, N_("High")},
162 {13, 0xffff, N_("Low")},
163 {14, 0x0000, N_("Normal")},
164 {14, 0x0001, N_("High")},
165 {14, 0xffff, N_("Low")},
166 {15, 14, N_("Auto high")},
167 {15, 15, N_("Auto")},
168 {15, 16, N_("50")},
169 {15, 17, N_("100")},
170 {15, 18, N_("200")},
171 {15, 19, N_("400")},
172 {15, 20, N_("800")},
173 {16, 0, N_("Default")},
174 {16, 1, N_("Spot")},
175 {16, 2, N_("Average")},
176 {16, 3, N_("Evaluative")},
177 {16, 4, N_("Partial")},
178 {16, 5, N_("Center-weighted average")},
179 {17, 0, N_("Manual")},
180 {17, 1, N_("Auto")},
181 {17, 2, N_("Not known")},
182 {17, 3, N_("Macro")},
183 {17, 4, N_("Very close")},
184 {17, 5, N_("Close")},
185 {17, 6, N_("Middle range")},
186 {17, 7, N_("Far range")},
187 {17, 8, N_("Pan focus")},
188 {17, 9, N_("Super macro")},
189 {17, 10, N_("Infinity")},
190 {18, 0x2005, N_("Manual AF point selection")},
191 {18, 0x3000, N_("None (MF)")},
192 {18, 0x3001, N_("Auto-selected")},
193 {18, 0x3002, N_("Right")},
194 {18, 0x3003, N_("Center")},
195 {18, 0x3004, N_("Left")},
196 {18, 0x4001, N_("Auto AF point selection")},
197 {19, 0, N_("Easy shooting")},
198 {19, 1, N_("Program")},
199 {19, 2, N_("Tv-priority")},
200 {19, 3, N_("Av-priority")},
201 {19, 4, N_("Manual")},
202 {19, 5, N_("A-DEP")},
203 {19, 6, N_("M-DEP")},
204 {21, 1, N_("Canon EF 50mm f/1.8")},
205 {21, 2, N_("Canon EF 28mm f/2.8")},
206 {21, 4, N_("Sigma UC Zoom 35-135mm f/4-5.6")},
207 {21, 6, N_("Tokina AF193-2 19-35mm f/3.5-4.5")},
208 {21, 7, N_("Canon EF 100-300mm F5.6L")},
209 {21, 10, N_("Sigma 50mm f/2.8 EX or 28mm f/1.8")},
210 {21, 11, N_("Canon EF 35mm f/2")},
211 {21, 13, N_("Canon EF 15mm f/2.8")},
212 {21, 21, N_("Canon EF 80-200mm f/2.8L")},
213 {21, 22, N_("Tokina AT-X280AF PRO 28-80mm F2.8 Aspherical")},
214 {21, 26, N_("Cosina 100mm f/3.5 Macro AF")},
215 {21, 28, N_("Tamron AF Aspherical 28-200mm f/3.8-5.6")},
216 {21, 29, N_("Canon EF 50mm f/1.8 MkII")},
217 {21, 31, N_("Tamron SP AF 300mm f/2.8 LD IF")},
218 {21, 32, N_("Canon EF 24mm f/2.8 or Sigma 15mm f/2.8 EX Fisheye")},
219 {21, 39, N_("Canon EF 75-300mm f/4-5.6")},
220 {21, 40, N_("Canon EF 28-80mm f/3.5-5.6")},
221 {21, 43, N_("Canon EF 28-105mm f/4-5.6")},
222 {21, 45, N_("Canon EF-S 18-55mm f/3.5-5.6")},
223 {21, 124, N_("Canon MP-E 65mm f/2.8 1-5x Macro Photo")},
224 {21, 125, N_("Canon TS-E 24mm f/3.5L")},
225 {21, 126, N_("Canon TS-E 45mm f/2.8")},
226 {21, 127, N_("Canon TS-E 90mm f/2.8")},
227 {21, 130, N_("Canon EF 50mm f/1.0L")},
228 {21, 131, N_("Sigma 17-35mm f2.8-4 EX Aspherical HSM")},
229 {21, 134, N_("Canon EF 600mm f/4L IS")},
230 {21, 135, N_("Canon EF 200mm f/1.8L")},
231 {21, 136, N_("Canon EF 300mm f/2.8L")},
232 {21, 137, N_("Canon EF 85mm f/1.2L")},
233 {21, 139, N_("Canon EF 400mm f/2.8L")},
234 {21, 141, N_("Canon EF 500mm f/4.5L")},
235 {21, 142, N_("Canon EF 300mm f/2.8L IS")},
236 {21, 143, N_("Canon EF 500mm f/4L IS")},
237 {21, 149, N_("Canon EF 100mm f/2")},
238 {21, 150, N_("Sigma 20mm EX f/1.8")},
239 {21, 151, N_("Canon EF 200mm f/2.8L")},
240 {21, 152, N_("Sigma 10-20mm F4-5.6 or 12-24mm f/4.5-5.6 or 14mm f/2.8")},
241 {21, 153, N_("Canon EF 35-350mm f/3.5-5.6L")},
242 {21, 155, N_("Canon EF 85mm f/1.8 USM")},
243 {21, 156, N_("Canon EF 28-105mm f/3.5-4.5 USM")},
244 {21, 160, N_("Canon EF 20-35mm f/3.5-4.5 USM")},
245 {21, 161, N_("Canon EF 28-70mm f/2.8L or Sigma 24-70mm EX f/2.8")},
246 {21, 165, N_("Canon EF 70-200mm f/2.8 L")},
247 {21, 166, N_("Canon EF 70-200mm f/2.8 L + x1.4")},
248 {21, 167, N_("Canon EF 70-200mm f/2.8 L + x2")},
249 {21, 168, N_("Canon EF 28mm f/1.8 USM")},
250 {21, 169, N_("Sigma 15-30mm f/3.5-4.5 EX DG Aspherical")},
251 {21, 170, N_("Canon EF 200mm f/2.8L II")},
252 {21, 173, N_("Canon EF 180mm Macro f/3.5L or Sigma 180mm EX HSM Macro f/3.5")} ,
253 {21, 174, N_("Canon EF 135mm f/2L")},
254 {21, 176, N_("Canon EF 24-85mm f/3.5-4.5 USM")},
255 {21, 177, N_("Canon EF 300mm f/4L IS")},
256 {21, 178, N_("Canon EF 28-135mm f/3.5-5.6 IS")},
257 {21, 180, N_("Canon EF 35mm f/1.4L")},
258 {21, 181, N_("Canon EF 100-400mm f/4.5-5.6L IS + x1.4")},
259 {21, 182, N_("Canon EF 100-400mm f/4.5-5.6L IS + x2")},
260 {21, 183, N_("Canon EF 100-400mm f/4.5-5.6L IS")},
261 {21, 184, N_("Canon EF 400mm f/2.8L + x2")},
262 {21, 186, N_("Canon EF 70-200mm f/4L")},
263 {21, 190, N_("Canon EF 100mm f/2.8 Macro")},
264 {21, 191, N_("Canon EF 400mm f/4 DO IS")},
265 {21, 197, N_("Canon EF 75-300mm f/4-5.6 IS")},
266 {21, 198, N_("Canon EF 50mm f/1.4")},
267 {21, 202, N_("Canon EF 28-80 f/3.5-5.6 USM IV")},
268 {21, 211, N_("Canon EF 28-200mm f/3.5-5.6")},
269 {21, 213, N_("Canon EF 90-300mm f/4.5-5.6")},
270 {21, 214, N_("Canon EF-S 18-55mm f/3.5-4.5 USM")},
271 {21, 224, N_("Canon EF 70-200mm f/2.8L IS USM")},
272 {21, 225, N_("Canon EF 70-200mm f/2.8L IS USM + x1.4")},
273 {21, 226, N_("Canon EF 70-200mm f/2.8L IS USM + x2")},
274 {21, 229, N_("Canon EF 16-35mm f/2.8L")},
275 {21, 230, N_("Canon EF 24-70mm f/2.8L")},
276 {21, 231, N_("Canon EF 17-40mm f/4L")},
277 {21, 232, N_("Canon EF 70-300mm f/4.5-5.6 DO IS USM")},
278 {21, 234, N_("Canon EF-S 17-85mm f4-5.6 IS USM")},
279 {21, 235, N_("Canon EF-S10-22mm F3.5-4.5 USM")},
280 {21, 236, N_("Canon EF-S60mm F2.8 Macro USM")},
281 {21, 237, N_("Canon EF 24-105mm f/4L IS")},
282 {21, 238, N_("Canon EF 70-300mm F4-5.6 IS USM")},
283 {21, 241, N_("Canon EF 50mm F1.2L USM")},
284 {21, 242, N_("Canon EF 70-200mm f/4L IS USM")},
285 {28, 0, N_("Manual")},
286 {28, 1, N_("TTL")},
287 {28, 2, N_("A-TTL")},
288 {28, 3, N_("E-TTL")},
289 {28, 4, N_("FP sync enabled")},
290 {28, 7, N_("2nd-curtain sync used")},
291 {28, 11, N_("FP sync used")},
292 {28, 13, N_("Internal")},
293 {28, 14, N_("External")},
294 {31, 0, N_("Single")},
295 {31, 1, N_("Continuous")},
296 {32, 0, N_("Normal AE")},
297 {32, 1, N_("Exposure compensation")},
298 {32, 2, N_("AE lock")},
299 {32, 3, N_("AE lock + exposure compensation")},
300 {32, 4, N_("No AE")},
301 {33, 0, N_("Off")},
302 {33, 1, N_("On")},
303 {33, 2, N_("On, shot only")},
304 {39, 0, N_("Off")},
305 {39, 1, N_("Vivid")},
306 {39, 2, N_("Neutral")},
307 {39, 3, N_("Smooth")},
308 {39, 4, N_("Sepia")},
309 {39, 5, N_("Black & white")},
310 {39, 6, N_("Custom")},
311 {39, 100, N_("My color data")},
312 {40, 0, N_("Off")},
313 {40, 0x0500, N_("Full")},
314 {40, 0x0502, N_("2/3")},
315 {40, 0x0504, N_("1/3")},
316 #endif
317 { 0, 0, NULL}
318 },
319 entries_focal_length [] = {
320 #ifndef NO_VERBOSE_TAG_DATA
321 {0, 1, N_("Fixed")},
322 {0, 2, N_("Zoom")},
323 #endif
324 {0, 0, NULL}
325 },
326 entries_settings_2 [] = {
327 #ifndef NO_VERBOSE_TAG_DATA
328 { 6, 0, N_("Auto")},
329 { 6, 1, N_("Sunny")},
330 { 6, 2, N_("Cloudy")},
331 { 6, 3, N_("Tungsten")},
332 { 6, 4, N_("Fluorescent")},
333 { 6, 5, N_("Flash")},
334 { 6, 6, N_("Custom")},
335 { 6, 7, N_("Black & white")},
336 { 6, 8, N_("Shade")},
337 { 6, 9, N_("Manual temperature (Kelvin)")},
338 { 6, 10, N_("PC set 1")},
339 { 6, 11, N_("PC set 2")},
340 { 6, 12, N_("PC set 3")},
341 { 6, 14, N_("Daylight fluorescent")},
342 { 6, 15, N_("Custom 1")},
343 { 6, 16, N_("Custom 2")},
344 { 6, 17, N_("Underwater")},
345 { 7, 0, N_("Off")},
346 { 7, 1, N_("Night scene")},
347 { 7, 2, N_("On")},
348 { 7, 3, N_("None")},
349 { 13, 0x3000, N_("None (MF)")},
350 { 13, 0x3001, N_("Right")},
351 { 13, 0x3002, N_("Center")},
352 { 13, 0x3003, N_("Center-right")},
353 { 13, 0x3004, N_("Left")},
354 { 13, 0x3005, N_("Left-right")},
355 { 13, 0x3006, N_("Left-center")},
356 { 13, 0x3007, N_("All")},
357 { 15, 0, N_("Off")},
358 { 15, 1, N_("On (shot 1)")},
359 { 15, 2, N_("On (shot 2)")},
360 { 15, 3, N_("On (shot 3)")},
361 { 15, 0xffff, N_("On")},
362 { 25, 248, N_("EOS high-end")},
363 { 25, 250, N_("Compact")},
364 { 25, 252, N_("EOS mid-range")},
365 { 26, 0, N_("None")},
366 { 26, 1, N_("Rotate 90 CW")},
367 { 26, 2, N_("Rotate 180")},
368 { 26, 3, N_("Rotate 270 CW")},
369 { 26, 0xffff, N_("Rotated by software")},
370 { 27, 0, N_("Off")},
371 { 27, 1, N_("On")},
372 { 32, 0, N_("Off")},
373 { 32, 0x0014, N_("1/3")},
374 { 32, 0x008c, N_("2/3")},
375 { 32, 0x07d0, N_("Full")},
376 #endif
377 {0, 0, NULL}
378 },
379 entries_panorama [] = {
380 #ifndef NO_VERBOSE_TAG_DATA
381 {0, 0, N_("Left to right")},
382 {0, 1, N_("Right to left")},
383 {0, 2, N_("Bottom to top")},
384 {0, 3, N_("Top to bottom")},
385 {0, 4, N_("2x2 matrix (clockwise)")},
386 #endif
387 {0, 0, NULL}
388 },
389 color_information [] = {
390 #ifndef NO_VERBOSE_TAG_DATA
391 {0, 0, N_("Standard")},
392 {0, 1, N_("Manual")},
393 {0, 2, N_("Custom")},
394 {2, 0, N_("N/A")},
395 {2, 1, N_("Lowest")},
396 {2, 2, N_("Low")},
397 {2, 3, N_("Standard")},
398 {2, 4, N_("High")},
399 {2, 5, N_("Highest")},
400 {7, 0, N_("Auto")},
401 {7, 1, N_("Daylight")},
402 {7, 2, N_("Cloudy")},
403 {7, 3, N_("Tungsten")},
404 {7, 4, N_("Fluorescent")},
405 {7, 5, N_("Flash")},
406 {7, 6, N_("Custom")},
407 {7, 7, N_("Black & white")},
408 {7, 8, N_("Shade")},
409 {7, 9, N_("Manual temperature (Kelvin)")},
410 {7, 10, N_("PC set 1")},
411 {7, 11, N_("PC set 2")},
412 {7, 12, N_("PC set 3")},
413 {7, 14, N_("Daylight fluorescent")},
414 {7, 15, N_("Custom 1")},
415 {7, 16, N_("Custom 2")},
416 {7, 17, N_("Underwater")},
417 {9, 0x00, N_("None")},
418 {9, 0x01, N_("Standard")},
419 {9, 0x02, N_("Set 1")},
420 {9, 0x03, N_("Set 2")},
421 {9, 0x04, N_("Set 3")},
422 {9, 0x21, N_("User def. 1")},
423 {9, 0x22, N_("User def. 2")},
424 {9, 0x23, N_("User def. 3")},
425 {9, 0x41, N_("External 1")},
426 {9, 0x42, N_("External 2")},
427 {9, 0x43, N_("External 3")},
428 {9, 0x81, N_("Standard")},
429 {9, 0x82, N_("Portrait")},
430 {9, 0x83, N_("Landscape")},
431 {9, 0x84, N_("Neutral")},
432 {9, 0x85, N_("Faithful")},
433 {9, 0x86, N_("Monochrome")},
434 #endif
435 {0, 0, NULL}
436 };
437
438 static void
439 canon_search_table_value (const struct canon_entry_table_t table[],
440 unsigned int t, ExifShort vs, char *val, unsigned int maxlen)
441 {
442 unsigned int j;
443
444 /* Search the table for the first matching subtag and value. */
445 for (j = 0; table[j].name && ((table[j].subtag < t) ||
446 ((table[j].subtag == t) && table[j].value <= vs)); j++) {
447 if ((table[j].subtag == t) && (table[j].value == vs)) {
448 break;
449 }
450 }
451 if ((table[j].subtag == t) && (table[j].value == vs) && table[j].name) {
452 /* Matching subtag and value found. */
453 strncpy (val, _(table[j].name), maxlen);
454 } else {
455 /* No matching subtag and/or value found. */
456 snprintf (val, maxlen, "0x%04x", vs);
457 }
458 }
459
460 static void
461 canon_search_table_bitfield (const struct canon_entry_table_t table[],
462 unsigned int t, ExifShort vs, char *val, unsigned int maxlen)
463 {
464 unsigned int j;
465
466 /* Search the table for the first matching subtag. */
467 for (j = 0; table[j].name && (table[j].subtag <= t); j++) {
468 if (table[j].subtag == t) {
469 break;
470 }
471 }
472 if ((table[j].subtag == t) && table[j].name) {
473 unsigned int i, bit, lastbit = 0;
474
475 /*
476 * Search the table for the last matching bit, because
477 * that one needs no additional comma appended.
478 */
479 for (i = j; table[i].name && (table[i].subtag == t); i++) {
480 bit = table[i].value;
481 if ((vs >> bit) & 1) {
482 lastbit = bit;
483 }
484 }
485 /* Search the table for all matching bits. */
486 for (i = j; table[i].name && (table[i].subtag == t); i++) {
487 bit = table[i].value;
488 if ((vs >> bit) & 1) {
489 strncat(val, _(table[i].name), maxlen - strlen ( val));
490 if (bit != lastbit)
491 strncat (val, _(", "), maxlen - strlen ( val));
492 }
493 }
494 } else {
495 /* No matching subtag found. */
496 snprintf (val, maxlen, "0x%04x", vs);
497 }
498 }
499
500 unsigned int
501 mnote_canon_entry_count_values (const MnoteCanonEntry *entry)
502 {
503 unsigned int val;
504
505 if (!entry) return 0;
506
507 switch (entry->tag) {
508 case MNOTE_CANON_TAG_FOCAL_LENGTH:
509 case MNOTE_CANON_TAG_PANORAMA:
510 return entry->components;
511 case MNOTE_CANON_TAG_SETTINGS_1:
512 case MNOTE_CANON_TAG_SETTINGS_2:
513 case MNOTE_CANON_TAG_CUSTOM_FUNCS:
514 case MNOTE_CANON_TAG_COLOR_INFORMATION:
515 if (entry->format != EXIF_FORMAT_SHORT) return 0;
516
517 val = exif_get_short (entry->data, entry->order);
518 /* val is buffer size, i.e. # of values plus 1 */
519 return MIN (entry->size - 2, val) / 2;
520 default:
521 return 1;
522 }
523 }
524
525 /*
526 * For reference, see Exif 2.1 specification (Appendix C),
527 * or http://en.wikipedia.org/wiki/APEX_system
528 */
529 static double
530 apex_value_to_aperture (double x)
531 {
532 return pow (2, x / 2.);
533 }
534
535 static double
536 apex_value_to_shutter_speed(double x)
537 {
538 return 1.0 / pow (2, x);
539 }
540
541 static double
542 apex_value_to_iso_speed (double x)
543 {
544 return 3.125 * pow (2, x);
545 }
546
547 char *
548 mnote_canon_entry_get_value (const MnoteCanonEntry *entry, unsigned int t, char *val, unsigned int maxlen)
549 {
550 char buf[128];
551 ExifLong vl;
552 ExifShort vs, n;
553 unsigned char *data;
554 double d;
555
556 if (!entry)
557 return NULL;
558
559 data = entry->data;
560
561 memset (val, 0, maxlen);
562 maxlen--;
563
564 switch (entry->tag) {
565 case MNOTE_CANON_TAG_SETTINGS_1:
566 CF (entry->format, EXIF_FORMAT_SHORT, val, maxlen);
567 n = exif_get_short (data, entry->order) / 2;
568 if (t >= n) return NULL;
569 CC (entry->components, n, val, maxlen);
570 vs = exif_get_short (data + 2 + t * 2, entry->order);
571 switch (t) {
572 case 1:
573 if (!vs) {
574 strncpy(val, _("Off"), maxlen);
575 break;
576 }
577 snprintf (val, maxlen, _("%i (ms)"), vs * 100);
578 break;
579 case 15:
580 if (((vs & 0xC000) == 0x4000) && (vs != 0x7FFF)) {
581 /* Canon S3 IS - directly specified value */
582 snprintf (val, maxlen, "%i", vs & ~0x4000);
583 } else {
584 /* Standard Canon - index into lookup table */
585 canon_search_table_value (entries_settings_1, t, vs, val, maxlen);
586 }
587 break;
588 case 22:
589 case 23:
590 case 24:
591 snprintf (val, maxlen, "%u", vs);
592 break;
593 case 25:
594 case 26:
595 snprintf (val, maxlen, "%.2f", apex_value_to_aperture (v s / 32.0));
596 break;
597 case 28:
598 canon_search_table_bitfield(entries_settings_1, t, vs, v al, maxlen);
599 break;
600 case 34:
601 snprintf (val, maxlen, "%.2f", vs / 10.0);
602 break;
603 case 35:
604 case 36:
605 snprintf (val, maxlen, "%u", vs);
606 break;
607 default:
608 canon_search_table_value (entries_settings_1, t, vs, val , maxlen);
609 }
610 break;
611
612 case MNOTE_CANON_TAG_FOCAL_LENGTH:
613 CF (entry->format, EXIF_FORMAT_SHORT, val, maxlen);
614 vs = exif_get_short (data + t * 2, entry->order);
615 switch (t) {
616 case 1:
617 snprintf (val, maxlen, "%u", vs);
618 break;
619 case 2:
620 case 3:
621 snprintf (val, maxlen, _("%.2f mm"), vs * 25.4 / 1000);
622 break;
623 default:
624 canon_search_table_value (entries_focal_length, t, vs, v al, maxlen);
625 }
626 break;
627
628 case MNOTE_CANON_TAG_SETTINGS_2:
629 CF (entry->format, EXIF_FORMAT_SHORT, val, maxlen);
630 n = exif_get_short (data, entry->order) / 2;
631 if (t >= n) return NULL;
632 CC (entry->components, n, val, maxlen);
633 vs = exif_get_short (data + 2 + t * 2, entry->order);
634 switch (t) {
635 case 0:
636 snprintf (val, maxlen, "%.3f", pow (2, (ExifSShort)vs / 32.0));
637 break;
638 case 1:
639 snprintf (val, maxlen, "%.0f", apex_value_to_iso_speed ( (ExifSShort)vs / 32.0));
640 break;
641 case 2:
642 case 5:
643 case 14:
644 case 16:
645 snprintf (val, maxlen, _("%.2f EV"), (ExifSShort)vs / 32 .0);
646 break;
647 case 3:
648 case 20:
649 snprintf (val, maxlen, "%.2f", apex_value_to_aperture (v s / 32.0));
650 break;
651 case 4:
652 case 21:
653 d = apex_value_to_shutter_speed ((ExifSShort)vs / 32.0);
654 if (d < 1)
655 snprintf (val, maxlen, _("1/%i"),(int)(1.0 / d)) ;
656 else
657 snprintf (val, maxlen, "%i", (int) d);
658 break;
659 case 8:
660 snprintf (val, maxlen, "%u", vs);
661 break;
662 case 12:
663 snprintf (val, maxlen, "%.2f", vs / 32.0);
664 break;
665 case 18:
666 case 19:
667 snprintf (val, maxlen, _("%u mm"), vs);
668 break;
669 case 28:
670 if ((ExifSShort)vs <= 0) {
671 strncpy(val, _("Off"), maxlen);
672 break;
673 }
674 snprintf (val, maxlen, _("%i (ms)"), vs * 100);
675 break;
676 default:
677 canon_search_table_value (entries_settings_2, t, vs, val , maxlen);
678 }
679 break;
680
681 case MNOTE_CANON_TAG_PANORAMA:
682 CF (entry->format, EXIF_FORMAT_SHORT, val, maxlen);
683 vs = exif_get_short (data + t * 2, entry->order);
684 canon_search_table_value (entries_panorama, t, vs, val, maxlen);
685 break;
686
687 case MNOTE_CANON_TAG_OWNER:
688 CC (entry->components, 32, val, maxlen);
689 /* Fall through; ImageType can have many sizes */
690 case MNOTE_CANON_TAG_IMAGE_TYPE:
691 CF (entry->format, EXIF_FORMAT_ASCII, val, maxlen);
692 strncpy (val, (char *)data, MIN (entry->size, maxlen));
693 break;
694
695 case MNOTE_CANON_TAG_FIRMWARE:
696 CF (entry->format, EXIF_FORMAT_ASCII, val, maxlen);
697 /* CC2 (entry->components, 24, 32, val, maxlen); Can also be 22 */
698 strncpy (val, (char *)data, MIN (entry->size, maxlen));
699 break;
700
701 case MNOTE_CANON_TAG_IMAGE_NUMBER:
702 CF (entry->format, EXIF_FORMAT_LONG, val, maxlen);
703 CC (entry->components, 1, val, maxlen);
704 vl = exif_get_long (data, entry->order);
705 snprintf (val, maxlen, "%03lu-%04lu",
706 (unsigned long) vl/10000,
707 (unsigned long) vl%10000);
708 break;
709
710 case MNOTE_CANON_TAG_SERIAL_NUMBER:
711 CF (entry->format, EXIF_FORMAT_LONG, val, maxlen);
712 CC (entry->components, 1, val, maxlen);
713 vl = exif_get_long (data, entry->order);
714 snprintf (val, maxlen, "%04X-%05d", (int)vl>>16,(int)vl&0xffff);
715 break;
716
717 case MNOTE_CANON_TAG_CUSTOM_FUNCS:
718 CF (entry->format, EXIF_FORMAT_SHORT, val, maxlen);
719 n = exif_get_short (data, entry->order) / 2;
720 if (t >= n) return NULL;
721 CC (entry->components, n, val, maxlen);
722 vs = exif_get_short (data + 2 + t * 2, entry->order);
723 snprintf (buf, sizeof (buf), "%u", vs);
724 strncat (val, buf, maxlen - strlen (val));
725 break;
726
727 case MNOTE_CANON_TAG_COLOR_INFORMATION:
728 CF (entry->format, EXIF_FORMAT_SHORT, val, maxlen);
729 n = exif_get_short (data, entry->order) / 2;
730 if (t >= n) return NULL;
731 CC (entry->components, n, val, maxlen);
732 vs = exif_get_short (data + 2 + t * 2, entry->order);
733 canon_search_table_value (color_information, t, vs, val, maxlen) ;
734 break;
735
736 default:
737 #ifdef DEBUG
738 {
739 int i;
740 if (entry->format == EXIF_FORMAT_SHORT)
741 for(i=0;i<entry->components;i++) {
742 vs = exif_get_short (data, entry->order);
743 data+=2;
744 printf ("Value%d=%d\n", i, vs);
745 }
746 else if (entry->format == EXIF_FORMAT_LONG)
747 for(i=0;i<entry->components;i++) {
748 vl = exif_get_long (data, entry->order);
749 data+=4;
750 printf ("Value%d=%d\n", i, vs);
751 }
752 else if (entry->format == EXIF_FORMAT_ASCII)
753 strncpy (val, data, MIN (entry->size, maxlen));
754 }
755 #endif
756 break;
757 }
758 return val;
759 }
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