3 * Copyright (C) 2008 The Geeqie Team
5 * Author: Vladimir Nadvornik
7 * This software is released under the GNU General Public License (GNU GPL).
8 * Please read the included file COPYING for more information.
9 * This software comes with no warranty of any kind, use at your own risk!
16 #include <exiv2/image.hpp>
17 #include <exiv2/exif.hpp>
20 // EXIV2_TEST_VERSION is defined in Exiv2 0.15 and newer.
21 #ifndef EXIV2_TEST_VERSION
22 # define EXIV2_TEST_VERSION(major,minor,patch) \
23 ( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
27 #include <sys/types.h>
33 #if !EXIV2_TEST_VERSION(0,17,90)
34 #include <exiv2/tiffparser.hpp>
35 #include <exiv2/tiffcomposite.hpp>
36 #include <exiv2/tiffvisitor.hpp>
37 #include <exiv2/tiffimage.hpp>
38 #include <exiv2/cr2image.hpp>
39 #include <exiv2/crwimage.hpp>
40 #if EXIV2_TEST_VERSION(0,16,0)
41 #include <exiv2/orfimage.hpp>
43 #if EXIV2_TEST_VERSION(0,13,0)
44 #include <exiv2/rafimage.hpp>
46 #include <exiv2/futils.hpp>
48 #include <exiv2/preview.hpp>
51 #if EXIV2_TEST_VERSION(0,17,0)
52 #include <exiv2/convert.hpp>
53 #include <exiv2/xmpsidecar.hpp>
63 #include "filefilter.h"
64 #include "ui_fileops.h"
69 Exiv2::ExifData::const_iterator exifIter; /* for exif_get_next_item */
70 Exiv2::IptcData::const_iterator iptcIter; /* for exif_get_next_item */
71 #if EXIV2_TEST_VERSION(0,16,0)
72 Exiv2::XmpData::const_iterator xmpIter; /* for exif_get_next_item */
79 virtual void writeMetadata()
81 g_critical("Unsupported method of writing metadata");
84 virtual ExifData *original()
89 virtual Exiv2::Image *image() = 0;
91 virtual Exiv2::ExifData &exifData() = 0;
93 virtual Exiv2::IptcData &iptcData() = 0;
95 #if EXIV2_TEST_VERSION(0,16,0)
96 virtual Exiv2::XmpData &xmpData() = 0;
99 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) = 0;
101 virtual guchar *get_jpeg_color_profile(guint *data_len) = 0;
104 // This allows read-only access to the original metadata
105 struct _ExifDataOriginal : public _ExifData
108 Exiv2::Image::AutoPtr image_;
110 /* the icc profile in jpeg is not technically exif - store it here */
111 unsigned char *cp_data_;
115 _ExifDataOriginal(Exiv2::Image::AutoPtr image)
122 _ExifDataOriginal(gchar *path)
126 gchar *pathl = path_from_utf8(path);
127 image_ = Exiv2::ImageFactory::open(pathl);
129 // g_assert (image.get() != 0);
130 image_->readMetadata();
132 #if EXIV2_TEST_VERSION(0,16,0)
133 if (image_->mimeType() == "application/rdf+xml")
135 //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
136 image_->clearExifData();
137 image_->clearIptcData();
141 #if EXIV2_TEST_VERSION(0,14,0)
142 if (image_->mimeType() == "image/jpeg")
144 /* try to get jpeg color profile */
145 Exiv2::BasicIo &io = image_->io();
146 gint open = io.isopen();
147 if (!open) io.open();
150 unsigned char *mapped = (unsigned char*)io.mmap();
151 if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
154 if (!open) io.close();
159 virtual ~_ExifDataOriginal()
161 if (cp_data_) g_free(cp_data_);
164 virtual Exiv2::Image *image()
169 virtual Exiv2::ExifData &exifData ()
171 return image_->exifData();
174 virtual Exiv2::IptcData &iptcData ()
176 return image_->iptcData();
179 #if EXIV2_TEST_VERSION(0,16,0)
180 virtual Exiv2::XmpData &xmpData ()
182 return image_->xmpData();
186 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
188 if (cp_data_) g_free(cp_data_);
190 cp_length_ = cp_length;
193 virtual guchar *get_jpeg_color_profile(guint *data_len)
197 if (data_len) *data_len = cp_length_;
198 return (unsigned char *) g_memdup(cp_data_, cp_length_);
205 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
208 // This allows read-write access to the metadata
209 struct _ExifDataProcessed : public _ExifData
212 _ExifDataOriginal *imageData_;
213 _ExifDataOriginal *sidecarData_;
215 Exiv2::ExifData exifData_;
216 Exiv2::IptcData iptcData_;
217 #if EXIV2_TEST_VERSION(0,16,0)
218 Exiv2::XmpData xmpData_;
222 _ExifDataProcessed(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
224 imageData_ = new _ExifDataOriginal(path);
226 #if EXIV2_TEST_VERSION(0,16,0)
227 xmpData_ = imageData_->xmpData();
228 DEBUG_2("xmp count %li", xmpData_.count());
229 if (sidecar_path && xmpData_.empty())
231 sidecarData_ = new _ExifDataOriginal(sidecar_path);
232 xmpData_ = sidecarData_->xmpData();
235 exifData_ = imageData_->exifData();
236 iptcData_ = imageData_->iptcData();
237 #if EXIV2_TEST_VERSION(0,17,0)
238 syncExifWithXmp(exifData_, xmpData_);
242 g_hash_table_foreach(modified_xmp, _ExifDataProcessed_update_xmp, this);
246 virtual ~_ExifDataProcessed()
248 if (imageData_) delete imageData_;
249 if (sidecarData_) delete sidecarData_;
252 virtual ExifData *original()
257 virtual void writeMetadata()
259 #if EXIV2_TEST_VERSION(0,17,0)
260 syncExifWithXmp(exifData_, xmpData_);
261 copyXmpToIptc(xmpData_, iptcData_); //FIXME it should be configurable
265 sidecarData_->image()->setXmpData(xmpData_);
266 //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
267 sidecarData_->image()->clearExifData();
268 sidecarData_->image()->clearIptcData();
269 sidecarData_->image()->writeMetadata();
274 imageData_->image()->setExifData(exifData_);
275 imageData_->image()->setIptcData(iptcData_);
276 imageData_->image()->setXmpData(xmpData_);
277 imageData_->image()->writeMetadata();
279 catch (Exiv2::AnyError& e)
281 // can't write into the image, create sidecar
282 #if EXIV2_TEST_VERSION(0,17,0)
283 gchar *base = remove_extension_from_path(imageData_->image()->io().path().c_str());
284 gchar *pathl = g_strconcat(base, ".xmp", NULL);
286 Exiv2::Image::AutoPtr sidecar = Exiv2::ImageFactory::create(Exiv2::ImageType::xmp, pathl);
291 sidecarData_ = new _ExifDataOriginal(sidecar);
292 sidecarData_->image()->setXmpData(xmpData_);
293 sidecarData_->image()->writeMetadata();
299 virtual Exiv2::Image *image()
301 return imageData_->image();
304 virtual Exiv2::ExifData &exifData ()
309 virtual Exiv2::IptcData &iptcData ()
314 #if EXIV2_TEST_VERSION(0,16,0)
315 virtual Exiv2::XmpData &xmpData ()
321 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
323 imageData_->add_jpeg_color_profile(cp_data, cp_length);
326 virtual guchar *get_jpeg_color_profile(guint *data_len)
328 return imageData_->get_jpeg_color_profile(data_len);
337 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data)
339 exif_update_metadata((ExifData *)data, (gchar *)key, (GList *)value);
342 ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
344 DEBUG_1("exif read %s, sidecar: %s", path, sidecar_path ? sidecar_path : "-");
346 return new _ExifDataProcessed(path, sidecar_path, modified_xmp);
348 catch (Exiv2::AnyError& e) {
349 std::cout << "Caught Exiv2 exception '" << e << "'\n";
355 int exif_write(ExifData *exif)
358 exif->writeMetadata();
361 catch (Exiv2::AnyError& e) {
362 std::cout << "Caught Exiv2 exception '" << e << "'\n";
369 void exif_free(ExifData *exif)
372 g_assert(dynamic_cast<_ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
376 ExifData *exif_get_original(ExifData *exif)
378 return exif->original();
382 ExifItem *exif_get_item(ExifData *exif, const gchar *key)
385 Exiv2::Metadatum *item = NULL;
387 Exiv2::ExifKey ekey(key);
388 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
389 if (pos == exif->exifData().end()) return NULL;
392 catch (Exiv2::AnyError& e) {
394 Exiv2::IptcKey ekey(key);
395 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
396 if (pos == exif->iptcData().end()) return NULL;
399 catch (Exiv2::AnyError& e) {
400 #if EXIV2_TEST_VERSION(0,16,0)
401 Exiv2::XmpKey ekey(key);
402 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
403 if (pos == exif->xmpData().end()) return NULL;
408 return (ExifItem *)item;
410 catch (Exiv2::AnyError& e) {
411 std::cout << "Caught Exiv2 exception '" << e << "'\n";
416 ExifItem *exif_add_item(ExifData *exif, const gchar *key)
419 Exiv2::Metadatum *item = NULL;
421 Exiv2::ExifKey ekey(key);
422 exif->exifData().add(ekey, NULL);
423 Exiv2::ExifData::iterator pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
427 catch (Exiv2::AnyError& e) {
429 Exiv2::IptcKey ekey(key);
430 exif->iptcData().add(ekey, NULL);
431 Exiv2::IptcData::iterator pos = exif->iptcData().end();
435 catch (Exiv2::AnyError& e) {
436 #if EXIV2_TEST_VERSION(0,16,0)
437 Exiv2::XmpKey ekey(key);
438 exif->xmpData().add(ekey, NULL);
439 Exiv2::XmpData::iterator pos = exif->xmpData().end();
445 return (ExifItem *)item;
447 catch (Exiv2::AnyError& e) {
448 std::cout << "Caught Exiv2 exception '" << e << "'\n";
454 ExifItem *exif_get_first_item(ExifData *exif)
457 exif->exifIter = exif->exifData().begin();
458 exif->iptcIter = exif->iptcData().begin();
459 #if EXIV2_TEST_VERSION(0,16,0)
460 exif->xmpIter = exif->xmpData().begin();
462 if (exif->exifIter != exif->exifData().end())
464 const Exiv2::Metadatum *item = &*exif->exifIter;
466 return (ExifItem *)item;
468 if (exif->iptcIter != exif->iptcData().end())
470 const Exiv2::Metadatum *item = &*exif->iptcIter;
472 return (ExifItem *)item;
474 #if EXIV2_TEST_VERSION(0,16,0)
475 if (exif->xmpIter != exif->xmpData().end())
477 const Exiv2::Metadatum *item = &*exif->xmpIter;
479 return (ExifItem *)item;
485 catch (Exiv2::AnyError& e) {
486 std::cout << "Caught Exiv2 exception '" << e << "'\n";
491 ExifItem *exif_get_next_item(ExifData *exif)
494 if (exif->exifIter != exif->exifData().end())
496 const Exiv2::Metadatum *item = &*exif->exifIter;
498 return (ExifItem *)item;
500 if (exif->iptcIter != exif->iptcData().end())
502 const Exiv2::Metadatum *item = &*exif->iptcIter;
504 return (ExifItem *)item;
506 #if EXIV2_TEST_VERSION(0,16,0)
507 if (exif->xmpIter != exif->xmpData().end())
509 const Exiv2::Metadatum *item = &*exif->xmpIter;
511 return (ExifItem *)item;
516 catch (Exiv2::AnyError& e) {
517 std::cout << "Caught Exiv2 exception '" << e << "'\n";
522 char *exif_item_get_tag_name(ExifItem *item)
525 if (!item) return NULL;
526 return g_strdup(((Exiv2::Metadatum *)item)->key().c_str());
528 catch (Exiv2::AnyError& e) {
529 std::cout << "Caught Exiv2 exception '" << e << "'\n";
534 guint exif_item_get_tag_id(ExifItem *item)
538 return ((Exiv2::Metadatum *)item)->tag();
540 catch (Exiv2::AnyError& e) {
541 std::cout << "Caught Exiv2 exception '" << e << "'\n";
546 guint exif_item_get_elements(ExifItem *item)
550 return ((Exiv2::Metadatum *)item)->count();
552 catch (Exiv2::AnyError& e) {
553 std::cout << "Caught Exiv2 exception '" << e << "'\n";
558 char *exif_item_get_data(ExifItem *item, guint *data_len)
562 Exiv2::Metadatum *md = (Exiv2::Metadatum *)item;
563 if (data_len) *data_len = md->size();
564 char *data = (char *)g_malloc(md->size());
565 long res = md->copy((Exiv2::byte *)data, Exiv2::littleEndian /* should not matter */);
566 g_assert(res == md->size());
569 catch (Exiv2::AnyError& e) {
570 std::cout << "Caught Exiv2 exception '" << e << "'\n";
575 char *exif_item_get_description(ExifItem *item)
578 if (!item) return NULL;
579 return g_locale_to_utf8(((Exiv2::Metadatum *)item)->tagLabel().c_str(), -1, NULL, NULL, NULL);
581 catch (std::exception& e) {
582 // std::cout << "Caught Exiv2 exception '" << e << "'\n";
588 invalidTypeId, unsignedByte, asciiString, unsignedShort,
589 unsignedLong, unsignedRational, signedByte, undefined,
590 signedShort, signedLong, signedRational, string,
591 date, time, comment, directory,
592 xmpText, xmpAlt, xmpBag, xmpSeq,
596 static guint format_id_trans_tbl [] = {
598 EXIF_FORMAT_BYTE_UNSIGNED,
600 EXIF_FORMAT_SHORT_UNSIGNED,
601 EXIF_FORMAT_LONG_UNSIGNED,
602 EXIF_FORMAT_RATIONAL_UNSIGNED,
604 EXIF_FORMAT_UNDEFINED,
607 EXIF_FORMAT_RATIONAL,
611 EXIF_FORMAT_UNDEFINED,
620 guint exif_item_get_format_id(ExifItem *item)
623 if (!item) return EXIF_FORMAT_UNKNOWN;
624 guint id = ((Exiv2::Metadatum *)item)->typeId();
625 if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
626 return format_id_trans_tbl[id];
628 catch (Exiv2::AnyError& e) {
629 std::cout << "Caught Exiv2 exception '" << e << "'\n";
630 return EXIF_FORMAT_UNKNOWN;
634 const char *exif_item_get_format_name(ExifItem *item, gint brief)
637 if (!item) return NULL;
638 return ((Exiv2::Metadatum *)item)->typeName();
640 catch (Exiv2::AnyError& e) {
641 std::cout << "Caught Exiv2 exception '" << e << "'\n";
647 gchar *exif_item_get_data_as_text(ExifItem *item)
650 if (!item) return NULL;
651 Exiv2::Metadatum *metadatum = (Exiv2::Metadatum *)item;
652 #if EXIV2_TEST_VERSION(0,17,0)
653 return g_locale_to_utf8(metadatum->print().c_str(), -1, NULL, NULL, NULL);
655 std::stringstream str;
656 Exiv2::Exifdatum *exifdatum;
657 Exiv2::Iptcdatum *iptcdatum;
658 #if EXIV2_TEST_VERSION(0,16,0)
659 Exiv2::Xmpdatum *xmpdatum;
661 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
663 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
665 #if EXIV2_TEST_VERSION(0,16,0)
666 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
670 return g_locale_to_utf8(str.str().c_str(), -1, NULL, NULL, NULL);
673 catch (Exiv2::AnyError& e) {
678 gchar *exif_item_get_string(ExifItem *item, int idx)
681 if (!item) return NULL;
682 Exiv2::Metadatum *em = (Exiv2::Metadatum *)item;
683 #if EXIV2_TEST_VERSION(0,16,0)
684 std::string str = em->toString(idx);
686 std::string str = em->toString(); // FIXME
688 if (idx == 0 && str == "") str = em->toString();
689 if (str.length() > 5 && str.substr(0, 5) == "lang=")
691 std::string::size_type pos = str.find_first_of(' ');
692 if (pos != std::string::npos) str = str.substr(pos+1);
695 // return g_locale_to_utf8(str.c_str(), -1, NULL, NULL, NULL); // FIXME
696 return g_strdup(str.c_str());
698 catch (Exiv2::AnyError& e) {
704 gint exif_item_get_integer(ExifItem *item, gint *value)
708 *value = ((Exiv2::Metadatum *)item)->toLong();
711 catch (Exiv2::AnyError& e) {
712 std::cout << "Caught Exiv2 exception '" << e << "'\n";
717 ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n)
720 if (!item) return NULL;
721 if (n >= exif_item_get_elements(item)) return NULL;
722 Exiv2::Rational v = ((Exiv2::Metadatum *)item)->toRational(n);
723 static ExifRational ret;
726 if (sign) *sign = (((Exiv2::Metadatum *)item)->typeId() == Exiv2::signedRational);
729 catch (Exiv2::AnyError& e) {
730 std::cout << "Caught Exiv2 exception '" << e << "'\n";
735 gchar *exif_get_tag_description_by_key(const gchar *key)
738 Exiv2::ExifKey ekey(key);
739 return g_locale_to_utf8(Exiv2::ExifTags::tagLabel(ekey.tag(), ekey.ifdId ()), -1, NULL, NULL, NULL);
741 catch (Exiv2::AnyError& e) {
742 std::cout << "Caught Exiv2 exception '" << e << "'\n";
747 gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
750 const GList *work = values;
752 Exiv2::Metadatum *item = NULL;
754 Exiv2::ExifKey ekey(key);
756 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
757 while (pos != exif->exifData().end())
759 exif->exifData().erase(pos);
760 pos = exif->exifData().findKey(ekey);
765 exif->exifData()[key] = (gchar *)work->data;
769 catch (Exiv2::AnyError& e) {
771 Exiv2::IptcKey ekey(key);
772 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
773 while (pos != exif->iptcData().end())
775 exif->iptcData().erase(pos);
776 pos = exif->iptcData().findKey(ekey);
781 exif->iptcData()[key] = (gchar *)work->data;
785 catch (Exiv2::AnyError& e) {
786 #if EXIV2_TEST_VERSION(0,16,0)
787 Exiv2::XmpKey ekey(key);
788 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
789 while (pos != exif->xmpData().end())
791 exif->xmpData().erase(pos);
792 pos = exif->xmpData().findKey(ekey);
797 exif->xmpData()[key] = (gchar *)work->data;
805 catch (Exiv2::AnyError& e) {
806 std::cout << "Caught Exiv2 exception '" << e << "'\n";
812 void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
814 exif->add_jpeg_color_profile(cp_data, cp_length);
817 guchar *exif_get_color_profile(ExifData *exif, guint *data_len)
819 guchar *ret = exif->get_jpeg_color_profile(data_len);
822 ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
823 if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
824 ret = (guchar *)exif_item_get_data(prof_item, data_len);
828 #if EXIV2_TEST_VERSION(0,17,90)
830 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
832 if (!exif) return NULL;
834 const char* path = exif->image()->io().path().c_str();
835 /* given image pathname, first do simple (and fast) file extension test */
836 gboolean is_raw = filter_file_class(path, FORMAT_CLASS_RAWIMAGE);
838 if (!is_raw && requested_width == 0) return NULL;
842 Exiv2::PreviewManager pm(*exif->image());
844 Exiv2::PreviewPropertiesList list = pm.getPreviewProperties();
848 Exiv2::PreviewPropertiesList::iterator pos;
849 Exiv2::PreviewPropertiesList::iterator last = --list.end();
851 if (requested_width == 0)
853 pos = last; // the largest
860 if (pos->width_ >= (uint32_t)requested_width &&
861 pos->height_ >= (uint32_t)requested_height) break;
865 // we are not interested in smaller thumbnails in normal image formats - we can use full image instead
868 if (pos->width_ < (uint32_t)requested_width || pos->height_ < (uint32_t)requested_height) return NULL;
872 Exiv2::PreviewImage image = pm.getPreviewImage(*pos);
874 Exiv2::DataBuf buf = image.copy();
875 std::pair<Exiv2::byte*, long> p = buf.release();
877 *data_len = p.second;
882 catch (Exiv2::AnyError& e) {
883 std::cout << "Caught Exiv2 exception '" << e << "'\n";
888 void exif_free_preview(guchar *buf)
890 delete[] (Exiv2::byte*)buf;
895 #if !EXIV2_TEST_VERSION(0,17,90)
897 /* This is a dirty hack to support raw file preview, bassed on
898 tiffparse.cpp from Exiv2 examples */
903 RawFile(Exiv2::BasicIo &io);
906 const Exiv2::Value *find(uint16_t tag, uint16_t group);
908 unsigned long preview_offset();
912 Exiv2::TiffComponent::AutoPtr rootDir;
914 const Exiv2::byte *map_data;
916 unsigned long offset;
919 typedef struct _UnmapData UnmapData;
927 static GList *exif_unmap_list = 0;
929 extern "C" guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
931 unsigned long offset;
933 if (!exif) return NULL;
934 const char* path = exif->image()->io().path().c_str();
936 /* given image pathname, first do simple (and fast) file extension test */
937 if (!filter_file_class(path, FORMAT_CLASS_RAWIMAGE)) return NULL;
946 RawFile rf(exif->image()->io());
947 offset = rf.preview_offset();
948 DEBUG_1("%s: offset %lu", path, offset);
950 fd = open(path, O_RDONLY);
956 if (fstat(fd, &st) == -1)
961 map_len = st.st_size;
962 map_data = (guchar *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
964 if (map_data == MAP_FAILED)
968 *data_len = map_len - offset;
969 ud = g_new(UnmapData, 1);
970 ud->ptr = map_data + offset;
971 ud->map_data = map_data;
972 ud->map_len = map_len;
974 exif_unmap_list = g_list_prepend(exif_unmap_list, ud);
978 catch (Exiv2::AnyError& e) {
979 std::cout << "Caught Exiv2 exception '" << e << "'\n";
985 void exif_free_preview(guchar *buf)
987 GList *work = exif_unmap_list;
991 UnmapData *ud = (UnmapData *)work->data;
994 munmap(ud->map_data, ud->map_len);
995 exif_unmap_list = g_list_remove_link(exif_unmap_list, work);
1001 g_assert_not_reached();
1004 using namespace Exiv2;
1006 RawFile::RawFile(BasicIo &io) : io_(io), map_data(NULL), map_len(0), offset(0)
1010 if (fstat(fd, &st) == -1)
1014 map_len = st.st_size;
1015 map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1016 if (map_data == MAP_FAILED)
1021 if (io.open() != 0) {
1022 throw Error(9, io.path(), strError());
1025 map_data = io.mmap();
1026 map_len = io.size();
1029 type = Exiv2::ImageFactory::getType(map_data, map_len);
1031 #if EXIV2_TEST_VERSION(0,16,0)
1032 TiffHeaderBase *tiffHeader = NULL;
1034 TiffHeade2 *tiffHeader = NULL;
1036 Cr2Header *cr2Header = NULL;
1039 case Exiv2::ImageType::tiff:
1040 tiffHeader = new TiffHeade2();
1042 case Exiv2::ImageType::cr2:
1043 cr2Header = new Cr2Header();
1045 #if EXIV2_TEST_VERSION(0,16,0)
1046 case Exiv2::ImageType::orf:
1047 tiffHeader = new OrfHeader();
1050 #if EXIV2_TEST_VERSION(0,13,0)
1051 case Exiv2::ImageType::raf:
1052 if (map_len < 84 + 4) throw Error(14);
1053 offset = getULong(map_data + 84, bigEndian);
1056 case Exiv2::ImageType::crw:
1058 // Parse the image, starting with a CIFF header component
1059 Exiv2::CiffHeader::AutoPtr parseTree(new Exiv2::CiffHeader);
1060 parseTree->read(map_data, map_len);
1061 CiffComponent *entry = parseTree->findComponent(0x2007, 0);
1062 if (entry) offset = entry->pData() - map_data;
1067 throw Error(3, "RAW");
1070 // process tiff-like formats
1072 TiffCompFactoryFct createFct = TiffCreator::create;
1074 rootDir = createFct(Tag::root, Group::none);
1075 if (0 == rootDir.get()) {
1076 throw Error(1, "No root element defined in TIFF structure");
1081 if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
1082 #if EXIV2_TEST_VERSION(0,16,0)
1083 rootDir->setStart(map_data + tiffHeader->offset());
1085 rootDir->setStart(map_data + tiffHeader->ifdOffset());
1091 rootDir->setStart(map_data + cr2Header->offset());
1094 TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
1096 TiffReader reader(map_data,
1101 rootDir->accept(reader);
1109 RawFile::~RawFile(void)
1115 const Value * RawFile::find(uint16_t tag, uint16_t group)
1117 TiffFinder finder(tag, group);
1118 rootDir->accept(finder);
1119 TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
1122 DEBUG_1("(tag: %04x %04x) ", tag, group);
1123 return te->pValue();
1129 unsigned long RawFile::preview_offset(void)
1132 if (offset) return offset;
1134 if (type == Exiv2::ImageType::cr2)
1136 val = find(0x111, Group::ifd0);
1137 if (val) return val->toLong();
1142 val = find(0x201, Group::sub0_0);
1143 if (val) return val->toLong();
1145 val = find(0x201, Group::ifd0);
1146 if (val) return val->toLong();
1148 val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
1149 if (val) return val->toLong();
1151 val = find(0x111, Group::sub0_1); // dng
1152 if (val) return val->toLong();
1163 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */