diff options
Diffstat (limited to 'plugins/FreeImage/Source/Metadata/XTIFF.cpp')
| -rw-r--r-- | plugins/FreeImage/Source/Metadata/XTIFF.cpp | 661 |
1 files changed, 0 insertions, 661 deletions
diff --git a/plugins/FreeImage/Source/Metadata/XTIFF.cpp b/plugins/FreeImage/Source/Metadata/XTIFF.cpp deleted file mode 100644 index bc63cf38b2..0000000000 --- a/plugins/FreeImage/Source/Metadata/XTIFF.cpp +++ /dev/null @@ -1,661 +0,0 @@ -// ==========================================================
-// Metadata functions implementation
-// Extended TIFF Directory GEO Tag Support
-//
-// Design and implementation by
-// - Hervé Drolon (drolon@infonie.fr)
-// - Thorsten Radde (support@IdealSoftware.com)
-// - Berend Engelbrecht (softwarecave@users.sourceforge.net)
-// - Mihail Naydenov (mnaydenov@users.sourceforge.net)
-//
-// Based on the LibTIFF xtiffio sample and on LibGeoTIFF
-//
-// This file is part of FreeImage 3
-//
-// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
-// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
-// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
-// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
-// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
-// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
-// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
-// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
-// THIS DISCLAIMER.
-//
-// Use at your own risk!
-// ==========================================================
-
-#ifdef _MSC_VER
-#pragma warning (disable : 4786) // identifier was truncated to 'number' characters
-#endif
-
-#include "../LibTIFF4/tiffiop.h"
-
-#include "FreeImage.h"
-#include "Utilities.h"
-#include "FreeImageTag.h"
-#include "FIRational.h"
-
-// ----------------------------------------------------------
-// Extended TIFF Directory GEO Tag Support
-// ----------------------------------------------------------
-
-/**
- Tiff info structure.
- Entry format:
- { TAGNUMBER, ReadCount, WriteCount, DataType, FIELDNUM, OkToChange, PassDirCountOnSet, AsciiName }
-
- For ReadCount, WriteCount, -1 = unknown.
-*/
-static const TIFFFieldInfo xtiffFieldInfo[] = {
- { TIFFTAG_GEOPIXELSCALE, -1, -1, TIFF_DOUBLE, FIELD_CUSTOM, TRUE, TRUE, "GeoPixelScale" },
- { TIFFTAG_INTERGRAPH_MATRIX, -1, -1, TIFF_DOUBLE, FIELD_CUSTOM, TRUE, TRUE, "Intergraph TransformationMatrix" },
- { TIFFTAG_GEOTRANSMATRIX, -1, -1, TIFF_DOUBLE, FIELD_CUSTOM, TRUE, TRUE, "GeoTransformationMatrix" },
- { TIFFTAG_GEOTIEPOINTS, -1, -1, TIFF_DOUBLE, FIELD_CUSTOM, TRUE, TRUE, "GeoTiePoints" },
- { TIFFTAG_GEOKEYDIRECTORY,-1,-1, TIFF_SHORT, FIELD_CUSTOM, TRUE, TRUE, "GeoKeyDirectory" },
- { TIFFTAG_GEODOUBLEPARAMS, -1, -1, TIFF_DOUBLE, FIELD_CUSTOM, TRUE, TRUE, "GeoDoubleParams" },
- { TIFFTAG_GEOASCIIPARAMS, -1, -1, TIFF_ASCII, FIELD_CUSTOM, TRUE, FALSE, "GeoASCIIParams" },
- { TIFFTAG_JPL_CARTO_IFD, 1, 1, TIFF_LONG, FIELD_CUSTOM, TRUE, TRUE, "JPL Carto IFD offset" } /** Don't use this! **/
-};
-
-static void
-_XTIFFLocalDefaultDirectory(TIFF *tif) {
- int tag_size = sizeof(xtiffFieldInfo) / sizeof(xtiffFieldInfo[0]);
- // Install the extended Tag field info
- TIFFMergeFieldInfo(tif, xtiffFieldInfo, tag_size);
-}
-
-static TIFFExtendProc _ParentExtender;
-
-/**
-This is the callback procedure, and is
-called by the DefaultDirectory method
-every time a new TIFF directory is opened.
-*/
-static void
-_XTIFFDefaultDirectory(TIFF *tif) {
- // set up our own defaults
- _XTIFFLocalDefaultDirectory(tif);
-
- /*
- Since an XTIFF client module may have overridden
- the default directory method, we call it now to
- allow it to set up the rest of its own methods.
- */
- if (_ParentExtender)
- (*_ParentExtender)(tif);
-}
-
-/**
-XTIFF Initializer -- sets up the callback procedure for the TIFF module
-*/
-void
-XTIFFInitialize(void) {
- static int first_time = 1;
-
- if (! first_time)
- return; /* Been there. Done that. */
- first_time = 0;
-
- // Grab the inherited method and install
- _ParentExtender = TIFFSetTagExtender(_XTIFFDefaultDirectory);
-}
-
-// ----------------------------------------------------------
-// GeoTIFF tag reading / writing
-// ----------------------------------------------------------
-
-void
-tiff_read_geotiff_profile(TIFF *tif, FIBITMAP *dib) {
- char defaultKey[16];
-
- size_t tag_size = sizeof(xtiffFieldInfo) / sizeof(xtiffFieldInfo[0]);
-
- TagLib& tag_lib = TagLib::instance();
-
- for(unsigned i = 0; i < tag_size; i++) {
-
- const TIFFFieldInfo *fieldInfo = &xtiffFieldInfo[i];
-
- if(fieldInfo->field_type == TIFF_ASCII) {
- char *params = NULL;
-
- if(TIFFGetField(tif, fieldInfo->field_tag, ¶ms)) {
- // create a tag
- FITAG *tag = FreeImage_CreateTag();
- if (!tag)
- return;
-
- WORD tag_id = (WORD)fieldInfo->field_tag;
-
- FreeImage_SetTagType(tag, (FREE_IMAGE_MDTYPE)fieldInfo->field_type);
- FreeImage_SetTagID(tag, tag_id);
- FreeImage_SetTagKey(tag, tag_lib.getTagFieldName(TagLib::GEOTIFF, tag_id, defaultKey));
- FreeImage_SetTagDescription(tag, tag_lib.getTagDescription(TagLib::GEOTIFF, tag_id));
- FreeImage_SetTagLength(tag, (DWORD)strlen(params) + 1);
- FreeImage_SetTagCount(tag, FreeImage_GetTagLength(tag));
- FreeImage_SetTagValue(tag, params);
- FreeImage_SetMetadata(FIMD_GEOTIFF, dib, FreeImage_GetTagKey(tag), tag);
-
- // delete the tag
- FreeImage_DeleteTag(tag);
- }
- } else {
- short tag_count = 0;
- void* data = NULL;
-
- if(TIFFGetField(tif, fieldInfo->field_tag, &tag_count, &data)) {
- // create a tag
- FITAG *tag = FreeImage_CreateTag();
- if (!tag)
- return;
-
- WORD tag_id = (WORD)fieldInfo->field_tag;
- FREE_IMAGE_MDTYPE tag_type = (FREE_IMAGE_MDTYPE)fieldInfo->field_type;
-
- FreeImage_SetTagType(tag, tag_type);
- FreeImage_SetTagID(tag, tag_id);
- FreeImage_SetTagKey(tag, tag_lib.getTagFieldName(TagLib::GEOTIFF, tag_id, defaultKey));
- FreeImage_SetTagDescription(tag, tag_lib.getTagDescription(TagLib::GEOTIFF, tag_id));
- FreeImage_SetTagLength(tag, FreeImage_TagDataWidth(tag_type) * tag_count);
- FreeImage_SetTagCount(tag, tag_count);
- FreeImage_SetTagValue(tag, data);
- FreeImage_SetMetadata(FIMD_GEOTIFF, dib, FreeImage_GetTagKey(tag), tag);
-
- // delete the tag
- FreeImage_DeleteTag(tag);
- }
- }
- } // for(tag_size)
-}
-
-void
-tiff_write_geotiff_profile(TIFF *tif, FIBITMAP *dib) {
- char defaultKey[16];
-
- if(FreeImage_GetMetadataCount(FIMD_GEOTIFF, dib) == 0) {
- return;
- }
-
- size_t tag_size = sizeof(xtiffFieldInfo) / sizeof(xtiffFieldInfo[0]);
-
- TagLib& tag_lib = TagLib::instance();
-
- for(unsigned i = 0; i < tag_size; i++) {
- const TIFFFieldInfo *fieldInfo = &xtiffFieldInfo[i];
-
- FITAG *tag = NULL;
- const char *key = tag_lib.getTagFieldName(TagLib::GEOTIFF, (WORD)fieldInfo->field_tag, defaultKey);
-
- if(FreeImage_GetMetadata(FIMD_GEOTIFF, dib, key, &tag)) {
- if(FreeImage_GetTagType(tag) == FIDT_ASCII) {
- TIFFSetField(tif, fieldInfo->field_tag, FreeImage_GetTagValue(tag));
- } else {
- TIFFSetField(tif, fieldInfo->field_tag, FreeImage_GetTagCount(tag), FreeImage_GetTagValue(tag));
- }
- }
- }
-}
-
-// ----------------------------------------------------------
-// EXIF tag reading & writing
-// ----------------------------------------------------------
-
-/**
-Read a single exif tag
-*/
-static BOOL
-tiff_read_exif_tag(TIFF *tif, TagLib::MDMODEL md_model, FIBITMAP *dib, TagLib& tagLib, TIFFDirectory *td, uint32 tag) {
- const TIFFField *fip;
- uint32 value_count;
- int mem_alloc = 0;
- void *raw_data = NULL;
-
- if(tag == TIFFTAG_EXIFIFD) {
- return TRUE;
- }
-
- // get the tag key - use NULL to avoid reading GeoTIFF tags
- const char *key = tagLib.getTagFieldName(md_model, (WORD)tag, NULL);
- if(key == NULL) {
- return TRUE;
- }
-
- fip = TIFFFieldWithTag(tif, tag);
- if(fip == NULL) {
- return TRUE;
- }
-
- if(fip->field_passcount) { //<- "passcount" means "returns count"
- if (fip->field_readcount != TIFF_VARIABLE2) { //<- TIFF_VARIABLE2 means "uses LONG count"
-
- // assume TIFF_VARIABLE (uses SHORT count)
- uint16 value_count16;
- if(TIFFGetField(tif, tag, &value_count16, &raw_data) != 1) {
- return TRUE;
- }
- value_count = value_count16;
- } else {
- if(TIFFGetField(tif, tag, &value_count, &raw_data) != 1) {
- return TRUE;
- }
- }
- } else {
-
- // determine count
-
- if (fip->field_readcount == TIFF_VARIABLE || fip->field_readcount == TIFF_VARIABLE2) {
- value_count = 1;
- } else if (fip->field_readcount == TIFF_SPP) {
- value_count = td->td_samplesperpixel;
- } else {
- value_count = fip->field_readcount;
- }
-
- // access fields as pointers to data
- // (### determining this is NOT robust... and hardly can be. It is implemented looking the _TIFFVGetField code)
-
- if(fip->field_tag == TIFFTAG_TRANSFERFUNCTION) {
- // reading this tag cause a bug probably located somewhere inside libtiff
- return TRUE;
- }
-
- if ((fip->field_type == TIFF_ASCII
- || fip->field_readcount == TIFF_VARIABLE
- || fip->field_readcount == TIFF_VARIABLE2
- || fip->field_readcount == TIFF_SPP
- || value_count > 1)
-
- && fip->field_tag != TIFFTAG_PAGENUMBER
- && fip->field_tag != TIFFTAG_HALFTONEHINTS
- && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING
- && fip->field_tag != TIFFTAG_DOTRANGE
-
- && fip->field_tag != TIFFTAG_BITSPERSAMPLE //<- these two are tricky -
- && fip->field_tag != TIFFTAG_COMPRESSION //<- they are defined as TIFF_VARIABLE but in reality return a single value
- ) {
- if(TIFFGetField(tif, tag, &raw_data) != 1) {
- return TRUE;
- }
- } else {
-
- // access fields as values
-
- const int value_size = _TIFFDataSize(fip->field_type);
- raw_data = _TIFFmalloc(value_size * value_count);
- mem_alloc = 1;
- int ok = FALSE;
-
- // ### if value_count > 1, tag is PAGENUMBER or HALFTONEHINTS or YCBCRSUBSAMPLING or DOTRANGE,
- // all off which are value_count == 2 (see tif_dirinfo.c)
- switch(value_count)
- {
- case 1:
- ok = TIFFGetField(tif, tag, raw_data);
- break;
- case 2:
- ok = TIFFGetField(tif, tag, raw_data, (BYTE*)(raw_data) + value_size*1);
- break;
-/* # we might need more in the future:
- case 3:
- ok = TIFFGetField(tif, tag, raw_data, (BYTE*)(raw_data) + value_size*1, (BYTE*)(raw_data) + value_size*2);
- break;
-*/
- default:
- FreeImage_OutputMessageProc(FIF_TIFF, "Unimplemented variable number of parameters for Tiff Tag %s", fip->field_name);
- break;
- }
- if(ok != 1) {
- _TIFFfree(raw_data);
- return TRUE;
- }
- }
- }
-
- // build FreeImage tag from Tiff Tag data we collected
-
- FITAG *fitag = FreeImage_CreateTag();
- if (!fitag) {
- if(mem_alloc) {
- _TIFFfree(raw_data);
- }
- return FALSE;
- }
-
- FreeImage_SetTagID(fitag, (WORD)tag);
- FreeImage_SetTagKey(fitag, key);
-
- switch(fip->field_type) {
- case TIFF_BYTE:
- FreeImage_SetTagType(fitag, FIDT_BYTE);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_UNDEFINED:
- FreeImage_SetTagType(fitag, FIDT_UNDEFINED);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_SBYTE:
- FreeImage_SetTagType(fitag, FIDT_SBYTE);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_SHORT:
- FreeImage_SetTagType(fitag, FIDT_SHORT);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_SSHORT:
- FreeImage_SetTagType(fitag, FIDT_SSHORT);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_LONG:
- FreeImage_SetTagType(fitag, FIDT_LONG);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_IFD:
- FreeImage_SetTagType(fitag, FIDT_IFD);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_SLONG:
- FreeImage_SetTagType(fitag, FIDT_SLONG);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_RATIONAL: {
- // LibTIFF converts rational to floats : reconvert floats to rationals
- DWORD *rvalue = (DWORD*)malloc(2 * value_count * sizeof(DWORD));
- for(uint32 i = 0; i < value_count; i++) {
- float *fv = (float*)raw_data;
- FIRational rational(fv[i]);
- rvalue[2*i] = rational.getNumerator();
- rvalue[2*i+1] = rational.getDenominator();
- }
- FreeImage_SetTagType(fitag, FIDT_RATIONAL);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, rvalue);
- free(rvalue);
- }
- break;
-
- case TIFF_SRATIONAL: {
- // LibTIFF converts rational to floats : reconvert floats to rationals
- LONG *rvalue = (LONG*)malloc(2 * value_count * sizeof(LONG));
- for(uint32 i = 0; i < value_count; i++) {
- float *fv = (float*)raw_data;
- FIRational rational(fv[i]);
- rvalue[2*i] = rational.getNumerator();
- rvalue[2*i+1] = rational.getDenominator();
- }
- FreeImage_SetTagType(fitag, FIDT_RATIONAL);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, rvalue);
- free(rvalue);
- }
- break;
-
- case TIFF_FLOAT:
- FreeImage_SetTagType(fitag, FIDT_FLOAT);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_DOUBLE:
- FreeImage_SetTagType(fitag, FIDT_DOUBLE);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_LONG8: // BigTIFF 64-bit unsigned integer
- FreeImage_SetTagType(fitag, FIDT_LONG8);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_IFD8: // BigTIFF 64-bit unsigned integer (offset)
- FreeImage_SetTagType(fitag, FIDT_IFD8);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- case TIFF_SLONG8: // BigTIFF 64-bit signed integer
- FreeImage_SetTagType(fitag, FIDT_SLONG8);
- FreeImage_SetTagLength(fitag, TIFFDataWidth(fip->field_type) * value_count);
- FreeImage_SetTagCount(fitag, value_count);
- FreeImage_SetTagValue(fitag, raw_data);
- break;
-
- default: {
- size_t length = strlen((char*)raw_data) + 1;
- FreeImage_SetTagType(fitag, FIDT_ASCII);
- FreeImage_SetTagLength(fitag, (DWORD)length);
- FreeImage_SetTagCount(fitag, (DWORD)length);
- FreeImage_SetTagValue(fitag, raw_data);
- }
- break;
- }
-
- const char *description = tagLib.getTagDescription(md_model, (WORD)tag);
- if(description) {
- FreeImage_SetTagDescription(fitag, description);
- }
- // store the tag
- FreeImage_SetMetadata(tagLib.getFreeImageModel(md_model), dib, FreeImage_GetTagKey(fitag), fitag);
-
- // destroy the tag
- FreeImage_DeleteTag(fitag);
-
- if(mem_alloc) {
- _TIFFfree(raw_data);
- }
- return TRUE;
-}
-
-/**
-Read all known exif tags
-*/
-BOOL
-tiff_read_exif_tags(TIFF *tif, TagLib::MDMODEL md_model, FIBITMAP *dib) {
- int i;
- short count;
-
- TagLib& tagLib = TagLib::instance();
-
- TIFFDirectory *td = &tif->tif_dir;
-
- count = (short) TIFFGetTagListCount(tif);
- for(i = 0; i < count; i++) {
- uint32 tag = TIFFGetTagListEntry(tif, i);
- // read the tag
- if (!tiff_read_exif_tag(tif, md_model, dib, tagLib, td, tag))
- return FALSE;
- }
-
- // we want to know values of standard tags too!!
-
- // loop over all Core Directory Tags
- // ### uses private data, but there is no other way
- if(md_model == TagLib::EXIF_MAIN) {
-
- uint32 lastTag = 0; //<- used to prevent reading some tags twice (as stored in tif_fieldinfo)
-
- for (int fi = 0, nfi = (int)tif->tif_nfields; nfi > 0; nfi--, fi++) {
- const TIFFField *fld = tif->tif_fields[fi];
-
- if(fld->field_tag == lastTag)
- continue;
-
- // test if tag value is set
- // (lifted directly form LibTiff _TIFFWriteDirectory)
-
- if ( fld->field_bit == FIELD_CUSTOM ) {
- int ci, is_set = FALSE;
-
- for ( ci = 0; ci < td->td_customValueCount; ci++ ) {
- is_set |= (td->td_customValues[ci].info == fld);
- }
-
- if ( !is_set ) {
- continue;
- }
-
- } else if (!TIFFFieldSet(tif, fld->field_bit)) {
- continue;
- }
-
- // process *all* other tags (some will be ignored)
-
- tiff_read_exif_tag(tif, md_model, dib, tagLib, td, fld->field_tag);
-
-
- lastTag = fld->field_tag;
- }
-
- }
-
- return TRUE;
-
-}
-
-
-/**
-Skip tags that are already handled by the LibTIFF writing process
-*/
-static BOOL
-skip_write_field(TIFF* tif, uint32 tag) {
- switch (tag) {
- case TIFFTAG_SAMPLEFORMAT:
- case TIFFTAG_IMAGEWIDTH:
- case TIFFTAG_IMAGELENGTH:
- case TIFFTAG_SAMPLESPERPIXEL:
- case TIFFTAG_BITSPERSAMPLE:
- case TIFFTAG_PHOTOMETRIC:
- case TIFFTAG_PLANARCONFIG:
- case TIFFTAG_ROWSPERSTRIP:
- case TIFFTAG_RESOLUTIONUNIT:
- case TIFFTAG_XRESOLUTION:
- case TIFFTAG_YRESOLUTION:
- case TIFFTAG_SUBFILETYPE:
- case TIFFTAG_PAGENUMBER:
- case TIFFTAG_COLORMAP:
- case TIFFTAG_ORIENTATION:
- case TIFFTAG_COMPRESSION:
- case TIFFTAG_PREDICTOR:
- case TIFFTAG_GROUP3OPTIONS:
- case TIFFTAG_FILLORDER:
- // skip always, values have been set in SaveOneTIFF()
- return TRUE;
- break;
-
- case TIFFTAG_RICHTIFFIPTC:
- // skip always, IPTC metadata model is set in tiff_write_iptc_profile()
- return TRUE;
- break;
-
- case TIFFTAG_YCBCRCOEFFICIENTS:
- case TIFFTAG_REFERENCEBLACKWHITE:
- case TIFFTAG_YCBCRSUBSAMPLING:
- // skip as they cannot be filled yet
- return TRUE;
- break;
-
- case TIFFTAG_PAGENAME:
- {
- char *value = NULL;
- TIFFGetField(tif, TIFFTAG_PAGENAME, &value);
- // only skip if no value has been set
- if(value == NULL) {
- return FALSE;
- } else {
- return TRUE;
- }
- }
- default:
- return FALSE;
- break;
- }
-}
-
-/**
-Write all known exif tags
-*/
-BOOL
-tiff_write_exif_tags(TIFF *tif, TagLib::MDMODEL md_model, FIBITMAP *dib) {
- char defaultKey[16];
-
- // only EXIF_MAIN so far
- if(md_model != TagLib::EXIF_MAIN) {
- return FALSE;
- }
-
- if(FreeImage_GetMetadataCount(FIMD_EXIF_MAIN, dib) == 0) {
- return FALSE;
- }
-
- TagLib& tag_lib = TagLib::instance();
-
- for (int fi = 0, nfi = (int)tif->tif_nfields; nfi > 0; nfi--, fi++) {
- const TIFFField *fld = tif->tif_fields[fi];
-
- if(skip_write_field(tif, fld->field_tag)) {
- // skip tags that are already handled by the LibTIFF writing process
- continue;
- }
-
- FITAG *tag = NULL;
- // get the tag key
- const char *key = tag_lib.getTagFieldName(TagLib::EXIF_MAIN, (WORD)fld->field_tag, defaultKey);
-
- if(FreeImage_GetMetadata(FIMD_EXIF_MAIN, dib, key, &tag)) {
- FREE_IMAGE_MDTYPE tag_type = FreeImage_GetTagType(tag);
- TIFFDataType tif_tag_type = fld->field_type;
-
- // check for identical formats
-
- // (enum value are the sames between FREE_IMAGE_MDTYPE and TIFFDataType types)
- if ((int)tif_tag_type != (int)tag_type) {
- // skip tag or _TIFFmemcpy will fail
- continue;
- }
- // type of storage may differ (e.g. rationnal array vs float array type)
- if(_TIFFDataSize(tif_tag_type) != FreeImage_TagDataWidth(tag_type)) {
- // skip tag or _TIFFmemcpy will fail
- continue;
- }
-
- if(tag_type == FIDT_ASCII) {
- TIFFSetField(tif, fld->field_tag, FreeImage_GetTagValue(tag));
- } else {
- TIFFSetField(tif, fld->field_tag, FreeImage_GetTagCount(tag), FreeImage_GetTagValue(tag));
- }
- }
- }
-
- return TRUE;
-}
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