libs/tiff/libtiff/tif_dirinfo.c

   1 /*
   2  * Copyright (c) 1988-1997 Sam Leffler
   3  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
   4  *
   5  * Permission to use, copy, modify, distribute, and sell this software and
   6  * its documentation for any purpose is hereby granted without fee, provided
   7  * that (i) the above copyright notices and this permission notice appear in
   8  * all copies of the software and related documentation, and (ii) the names of
   9  * Sam Leffler and Silicon Graphics may not be used in any advertising or
  10  * publicity relating to the software without the specific, prior written
  11  * permission of Sam Leffler and Silicon Graphics.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  14  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  15  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  16  *
  17  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  18  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  19  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  20  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  21  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  22  * OF THIS SOFTWARE.
  23  */
  24
  25 /*
  26  * TIFF Library.
  27  *
  28  * Core Directory Tag Support.
  29  */
  30 #include "tiffiop.h"
  31 #include <stdlib.h>
  32
  33 /*
  34  * NOTE: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG.
  35  *
  36  * NOTE: The second field (field_readcount) and third field (field_writecount)
  37  *       sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3)
  38  *       and TIFF_SPP (-2). The macros should be used but would throw off
  39  *       the formatting of the code, so please interpret the -1, -2 and -3
  40  *       values accordingly.
  41  */
  42
  43 /* const object should be initialized */
  44 #ifdef _MSC_VER
  45 #pragma warning(push)
  46 #pragma warning(disable : 4132)
  47 #endif
  48 static const TIFFFieldArray tiffFieldArray;
  49 static const TIFFFieldArray exifFieldArray;
  50 static const TIFFFieldArray gpsFieldArray;
  51 #ifdef _MSC_VER
  52 #pragma warning(pop)
  53 #endif
  54 /*--: Rational2Double: --
  55  * The Rational2Double upgraded libtiff functionality allows the definition and
  56  * achievement of true double-precision accuracy for TIFF tags of RATIONAL type
  57  * and field_bit=FIELD_CUSTOM using the set_field_type = TIFF_SETGET_DOUBLE.
  58  * Unfortunately, that changes the old implemented interface for TIFFGetField().
  59  * In order to keep the old TIFFGetField() interface behavior those tags have to
  60  * be redefined with set_field_type = TIFF_SETGET_FLOAT!
  61  *
  62  *  Rational custom arrays are already defined as _Cxx_FLOAT, thus can stay.
  63  *
  64  */
  65
  66 /* clang-format off */ /* for better readability of tag comments */
  67 static const TIFFField tiffFields[] = {
  68     {TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_SUBFILETYPE, 1, 0, "SubfileType", NULL},
  69     {TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "OldSubfileType", NULL},
  70     {TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_IMAGEDIMENSIONS, 0, 0, "ImageWidth", NULL},
  71     {TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_IMAGEDIMENSIONS, 1, 0, "ImageLength", NULL},
  72     {TIFFTAG_BITSPERSAMPLE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_BITSPERSAMPLE, 0, 0, "BitsPerSample", NULL},
  73     {TIFFTAG_COMPRESSION, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_COMPRESSION, 0, 0, "Compression", NULL},
  74     {TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_PHOTOMETRIC, 0, 0, "PhotometricInterpretation", NULL},
  75     {TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_THRESHHOLDING, 1, 0, "Threshholding", NULL},
  76     {TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CellWidth", NULL},
  77     {TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CellLength", NULL},
  78     {TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_FILLORDER, 0, 0, "FillOrder", NULL},
  79     {TIFFTAG_DOCUMENTNAME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DocumentName", NULL},
  80     {TIFFTAG_IMAGEDESCRIPTION, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageDescription", NULL},
  81     {TIFFTAG_MAKE, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Make", NULL},
  82     {TIFFTAG_MODEL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Model", NULL},
  83     {TIFFTAG_STRIPOFFSETS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPOFFSETS, 0, 0, "StripOffsets", NULL},
  84     {TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_ORIENTATION, 0, 0, "Orientation", NULL},
  85     {TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_SAMPLESPERPIXEL, 0, 0, "SamplesPerPixel", NULL},
  86     {TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_ROWSPERSTRIP, 0, 0, "RowsPerStrip", NULL},
  87     {TIFFTAG_STRIPBYTECOUNTS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPBYTECOUNTS, 0, 0, "StripByteCounts", NULL},
  88     {TIFFTAG_MINSAMPLEVALUE, -2, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_MINSAMPLEVALUE, 1, 0, "MinSampleValue", NULL},
  89     {TIFFTAG_MAXSAMPLEVALUE, -2, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_MAXSAMPLEVALUE, 1, 0, "MaxSampleValue", NULL},
  90     {TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_RESOLUTION, 1, 0, "XResolution", NULL},
  91     {TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_RESOLUTION, 1, 0, "YResolution", NULL},
  92     {TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_PLANARCONFIG, 0, 0, "PlanarConfiguration", NULL},
  93     {TIFFTAG_PAGENAME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PageName", NULL},
  94     {TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_POSITION, 1, 0, "XPosition", NULL},
  95     {TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_POSITION, 1, 0, "YPosition", NULL},
  96     {TIFFTAG_FREEOFFSETS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 0, 0, "FreeOffsets", NULL},
  97     {TIFFTAG_FREEBYTECOUNTS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 0, 0, "FreeByteCounts", NULL},
  98     {TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "GrayResponseUnit", NULL},
  99     {TIFFTAG_GRAYRESPONSECURVE, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "GrayResponseCurve", NULL},
 100     {TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_RESOLUTIONUNIT, 1, 0, "ResolutionUnit", NULL},
 101     {TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_PAGENUMBER, 1, 0, "PageNumber", NULL},
 102     {TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "ColorResponseUnit", NULL},
 103     {TIFFTAG_TRANSFERFUNCTION, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_OTHER, TIFF_SETGET_UNDEFINED, FIELD_TRANSFERFUNCTION, 1, 0, "TransferFunction", NULL},
 104     {TIFFTAG_SOFTWARE, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Software", NULL},
 105     {TIFFTAG_DATETIME, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateTime", NULL},
 106     {TIFFTAG_ARTIST, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Artist", NULL},
 107     {TIFFTAG_HOSTCOMPUTER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "HostComputer", NULL},
 108     {TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "WhitePoint", NULL},
 109     {TIFFTAG_PRIMARYCHROMATICITIES, 6, 6, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PrimaryChromaticities", NULL},
 110     {TIFFTAG_COLORMAP, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_OTHER, TIFF_SETGET_UNDEFINED, FIELD_COLORMAP, 1, 0, "ColorMap", NULL},
 111     {TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_HALFTONEHINTS, 1, 0, "HalftoneHints", NULL},
 112     {TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_TILEDIMENSIONS, 0, 0, "TileWidth", NULL},
 113     {TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_TILEDIMENSIONS, 0, 0, "TileLength", NULL},
 114     {TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPOFFSETS, 0, 0, "TileOffsets", NULL},
 115     {TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPBYTECOUNTS, 0, 0, "TileByteCounts", NULL},
 116     {TIFFTAG_SUBIFD, -1, -1, TIFF_IFD8, 0, TIFF_SETGET_C16_IFD8, TIFF_SETGET_UNDEFINED, FIELD_SUBIFD, 1, 1, "SubIFD", (TIFFFieldArray *)&tiffFieldArray},
 117     {TIFFTAG_INKSET, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "InkSet", NULL},
 118     {TIFFTAG_INKNAMES, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_C16_ASCII, TIFF_SETGET_UNDEFINED, FIELD_INKNAMES, 1, 1, "InkNames", NULL},
 119     {TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_NUMBEROFINKS, 1, 0, "NumberOfInks", NULL},
 120     {TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DotRange", NULL},
 121     {TIFFTAG_TARGETPRINTER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TargetPrinter", NULL},
 122     {TIFFTAG_EXTRASAMPLES, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_EXTRASAMPLES, 0, 1, "ExtraSamples", NULL},
 123     {TIFFTAG_SAMPLEFORMAT, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_SAMPLEFORMAT, 0, 0, "SampleFormat", NULL},
 124     {TIFFTAG_SMINSAMPLEVALUE, -2, -1, TIFF_ANY, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_SMINSAMPLEVALUE, 1, 0, "SMinSampleValue", NULL},
 125     {TIFFTAG_SMAXSAMPLEVALUE, -2, -1, TIFF_ANY, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_SMAXSAMPLEVALUE, 1, 0, "SMaxSampleValue", NULL},
 126     {TIFFTAG_CLIPPATH, -3, -3, TIFF_BYTE, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ClipPath", NULL},
 127     {TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "XClipPathUnits", NULL},
 128     {TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "YClipPathUnits", NULL},
 129     {TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "YCbCrCoefficients", NULL},
 130     {TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_YCBCRSUBSAMPLING, 0, 0, "YCbCrSubsampling", NULL},
 131     {TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_YCBCRPOSITIONING, 0, 0, "YCbCrPositioning", NULL},
 132     {TIFFTAG_REFERENCEBLACKWHITE, 6, 6, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_REFBLACKWHITE, 1, 0, "ReferenceBlackWhite", NULL},
 133     {TIFFTAG_XMLPACKET, -3, -3, TIFF_BYTE, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "XMLPacket", NULL},
 134     /* begin SGI tags */
 135     {TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_EXTRASAMPLES, 0, 0, "Matteing", NULL},
 136     {TIFFTAG_DATATYPE, -2, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_SAMPLEFORMAT, 0, 0, "DataType", NULL},
 137     {TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_IMAGEDEPTH, 0, 0, "ImageDepth", NULL},
 138     {TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_TILEDEPTH, 0, 0, "TileDepth", NULL},
 139     /* end SGI tags */
 140     /* begin Pixar tags */
 141     {TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageFullWidth", NULL},
 142     {TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageFullLength", NULL},
 143     {TIFFTAG_PIXAR_TEXTUREFORMAT, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TextureFormat", NULL},
 144     {TIFFTAG_PIXAR_WRAPMODES, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TextureWrapModes", NULL},
 145     {TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FieldOfViewCotangent", NULL},
 146     {TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16, 16, TIFF_FLOAT, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MatrixWorldToScreen", NULL},
 147     {TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16, 16, TIFF_FLOAT, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MatrixWorldToCamera", NULL},
 148     {TIFFTAG_COPYRIGHT, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Copyright", NULL},
 149     /* end Pixar tags */
 150     {TIFFTAG_RICHTIFFIPTC, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "RichTIFFIPTC", NULL},
 151     {TIFFTAG_PHOTOSHOP, -3, -3, TIFF_BYTE, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "Photoshop", NULL},
 152     /*--: EXIFIFD and GPSIFD specified as TIFF_LONG by Aware-Systems and not TIFF_IFD8 as in original LibTiff. However, for IFD-like tags,
 153      * libtiff uses the data type TIFF_IFD8 in tiffFields[]-tag definition combined with a special handling procedure in order to write either
 154      * a 32-bit value and the TIFF_IFD type-id into ClassicTIFF files or a 64-bit value and the TIFF_IFD8 type-id into BigTIFF files. */
 155     {TIFFTAG_EXIFIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EXIFIFDOffset", (TIFFFieldArray *)&exifFieldArray},
 156     {TIFFTAG_ICCPROFILE, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ICC Profile", NULL},
 157     {TIFFTAG_GPSIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "GPSIFDOffset", (TIFFFieldArray *)&gpsFieldArray},
 158     {TIFFTAG_FAXRECVPARAMS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_CUSTOM, TRUE, FALSE, "FaxRecvParams", NULL},
 159     {TIFFTAG_FAXSUBADDRESS, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_ASCII, FIELD_CUSTOM, TRUE, FALSE, "FaxSubAddress", NULL},
 160     {TIFFTAG_FAXRECVTIME, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_CUSTOM, TRUE, FALSE, "FaxRecvTime", NULL},
 161     {TIFFTAG_FAXDCS, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_ASCII, FIELD_CUSTOM, TRUE, FALSE, "FaxDcs", NULL},
 162     {TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "StoNits", NULL},
 163     {TIFFTAG_IMAGESOURCEDATA, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "Adobe Photoshop Document Data Block", NULL},
 164     {TIFFTAG_INTEROPERABILITYIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "InteroperabilityIFDOffset", NULL},
 165     /* begin DNG tags */
 166     {TIFFTAG_DNGVERSION, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DNGVersion", NULL},
 167     {TIFFTAG_DNGBACKWARDVERSION, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DNGBackwardVersion", NULL},
 168     {TIFFTAG_UNIQUECAMERAMODEL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "UniqueCameraModel", NULL},
 169     {TIFFTAG_LOCALIZEDCAMERAMODEL, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "LocalizedCameraModel", NULL},
 170     {TIFFTAG_CFAPLANECOLOR, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CFAPlaneColor", NULL},
 171     {TIFFTAG_CFALAYOUT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CFALayout", NULL},
 172     {TIFFTAG_LINEARIZATIONTABLE, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "LinearizationTable", NULL},
 173     {TIFFTAG_BLACKLEVELREPEATDIM, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BlackLevelRepeatDim", NULL},
 174     {TIFFTAG_BLACKLEVEL, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "BlackLevel", NULL},
 175     {TIFFTAG_BLACKLEVELDELTAH, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "BlackLevelDeltaH", NULL},
 176     {TIFFTAG_BLACKLEVELDELTAV, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "BlackLevelDeltaV", NULL},
 177     {TIFFTAG_WHITELEVEL, -1, -1, TIFF_LONG, 0, TIFF_SETGET_C16_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "WhiteLevel", NULL},
 178     {TIFFTAG_DEFAULTSCALE, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DefaultScale", NULL},
 179     {TIFFTAG_BESTQUALITYSCALE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BestQualityScale", NULL},
 180     {TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DefaultCropOrigin", NULL},
 181     {TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DefaultCropSize", NULL},
 182     {TIFFTAG_COLORMATRIX1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ColorMatrix1", NULL},
 183     {TIFFTAG_COLORMATRIX2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ColorMatrix2", NULL},
 184     {TIFFTAG_CAMERACALIBRATION1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CameraCalibration1", NULL},
 185     {TIFFTAG_CAMERACALIBRATION2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CameraCalibration2", NULL},
 186     {TIFFTAG_REDUCTIONMATRIX1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ReductionMatrix1", NULL},
 187     {TIFFTAG_REDUCTIONMATRIX2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ReductionMatrix2", NULL},
 188     {TIFFTAG_ANALOGBALANCE, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "AnalogBalance", NULL},
 189     {TIFFTAG_ASSHOTNEUTRAL, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "AsShotNeutral", NULL},
 190     {TIFFTAG_ASSHOTWHITEXY, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "AsShotWhiteXY", NULL},
 191     {TIFFTAG_BASELINEEXPOSURE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BaselineExposure", NULL},
 192     {TIFFTAG_BASELINENOISE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BaselineNoise", NULL},
 193     {TIFFTAG_BASELINESHARPNESS, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BaselineSharpness", NULL},
 194     {TIFFTAG_BAYERGREENSPLIT, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BayerGreenSplit", NULL},
 195     {TIFFTAG_LINEARRESPONSELIMIT, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LinearResponseLimit", NULL},
 196     {TIFFTAG_CAMERASERIALNUMBER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CameraSerialNumber", NULL},
 197     {TIFFTAG_LENSINFO, 4, 4, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LensInfo", NULL},
 198     {TIFFTAG_CHROMABLURRADIUS, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ChromaBlurRadius", NULL},
 199     {TIFFTAG_ANTIALIASSTRENGTH, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "AntiAliasStrength", NULL},
 200     {TIFFTAG_SHADOWSCALE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ShadowScale", NULL},
 201     {TIFFTAG_DNGPRIVATEDATA, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "DNGPrivateData", NULL},
 202     {TIFFTAG_MAKERNOTESAFETY, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MakerNoteSafety", NULL},
 203     {TIFFTAG_CALIBRATIONILLUMINANT1, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CalibrationIlluminant1", NULL},
 204     {TIFFTAG_CALIBRATIONILLUMINANT2, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CalibrationIlluminant2", NULL},
 205     {TIFFTAG_RAWDATAUNIQUEID, 16, 16, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RawDataUniqueID", NULL},
 206     {TIFFTAG_ORIGINALRAWFILENAME, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OriginalRawFileName", NULL},
 207     {TIFFTAG_ORIGINALRAWFILEDATA, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OriginalRawFileData", NULL},
 208     {TIFFTAG_ACTIVEAREA, 4, 4, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ActiveArea", NULL},
 209     {TIFFTAG_MASKEDAREAS, -1, -1, TIFF_LONG, 0, TIFF_SETGET_C16_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "MaskedAreas", NULL},
 210     {TIFFTAG_ASSHOTICCPROFILE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "AsShotICCProfile", NULL},
 211     {TIFFTAG_ASSHOTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "AsShotPreProfileMatrix", NULL},
 212     {TIFFTAG_CURRENTICCPROFILE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CurrentICCProfile", NULL},
 213     {TIFFTAG_CURRENTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CurrentPreProfileMatrix", NULL},
 214     {TIFFTAG_PERSAMPLE, 0, 0, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "PerSample", NULL},
 215 #if 0
 216     /* TODO: revert above #if 0 for TIFF 4.6.0 */
 217
 218     /* begin DNG 1.2.0.0 tags */
 219     {TIFFTAG_COLORIMETRICREFERENCE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ColorimetricReference", NULL},
 220     {TIFFTAG_CAMERACALIBRATIONSIGNATURE, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CameraCalibrationSignature", NULL},
 221     {TIFFTAG_PROFILECALIBRATIONSIGNATURE, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileCalibrationSignature", NULL},
 222     {TIFFTAG_EXTRACAMERAPROFILES, -1, -1, TIFF_IFD8, 0, TIFF_SETGET_C16_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ExtraCameraProfiles", NULL},
 223     {TIFFTAG_ASSHOTPROFILENAME, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "AsShotProfileName", NULL},
 224     {TIFFTAG_NOISEREDUCTIONAPPLIED, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "NoiseReductionApplied", NULL},
 225     {TIFFTAG_PROFILENAME, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileName", NULL},
 226     {TIFFTAG_PROFILEHUESATMAPDIMS, 3, 3, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ProfileHueSatMapDims", NULL},
 227     {TIFFTAG_PROFILEHUESATMAPDATA1, -1, -1, TIFF_FLOAT, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileHueSatMapData1", NULL},
 228     {TIFFTAG_PROFILEHUESATMAPDATA2, -1, -1, TIFF_FLOAT, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileHueSatMapData2", NULL},
 229     {TIFFTAG_PROFILETONECURVE, -1, -1, TIFF_FLOAT, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileToneCurve", NULL},
 230     {TIFFTAG_PROFILEEMBEDPOLICY, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ProfileEmbedPolicy", NULL},
 231     {TIFFTAG_PROFILECOPYRIGHT, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileCopyright", NULL},
 232     {TIFFTAG_FORWARDMATRIX1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ForwardMatrix1", NULL},
 233     {TIFFTAG_FORWARDMATRIX2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ForwardMatrix2", NULL},
 234     {TIFFTAG_PREVIEWAPPLICATIONNAME, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "PreviewApplicationName", NULL},
 235     {TIFFTAG_PREVIEWAPPLICATIONVERSION, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "PreviewApplicationVersion", NULL},
 236     {TIFFTAG_PREVIEWSETTINGSNAME, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "PreviewSettingsName", NULL},
 237     {TIFFTAG_PREVIEWSETTINGSDIGEST, 16, 16, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PreviewSettingsDigest", NULL},
 238     {TIFFTAG_PREVIEWCOLORSPACE, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PreviewColorSpace", NULL},
 239     {TIFFTAG_PREVIEWDATETIME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PreviewDateTime", NULL},
 240     {TIFFTAG_RAWIMAGEDIGEST, 16, 16, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RawImageDigest", NULL},
 241     {TIFFTAG_ORIGINALRAWFILEDIGEST, 16, 16, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OriginalRawFileDigest", NULL},
 242     {TIFFTAG_SUBTILEBLOCKSIZE, 2, 2, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubTileBlockSize", NULL},
 243     {TIFFTAG_ROWINTERLEAVEFACTOR, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RowInterleaveFactor", NULL},
 244     {TIFFTAG_PROFILELOOKTABLEDIMS, 3, 3, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ProfileLookTableDims", NULL},
 245     {TIFFTAG_PROFILELOOKTABLEDATA, -1, -1, TIFF_FLOAT, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileLookTableData", NULL},
 246     /* begin DNG 1.3.0.0 tags */
 247     {TIFFTAG_OPCODELIST1, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OpcodeList1", NULL},
 248     {TIFFTAG_OPCODELIST2, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OpcodeList2", NULL},
 249     {TIFFTAG_OPCODELIST3, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OpcodeList3", NULL},
 250     {TIFFTAG_NOISEPROFILE, -1, -1, TIFF_DOUBLE, 0, TIFF_SETGET_C16_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "NoiseProfile", NULL},
 251     /* begin DNG 1.4.0.0 tags */
 252     {TIFFTAG_DEFAULTUSERCROP, 4, 4, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DefaultUserCrop", NULL},
 253     {TIFFTAG_DEFAULTBLACKRENDER, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DefaultBlackRender", NULL},
 254     {TIFFTAG_BASELINEEXPOSUREOFFSET, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BaselineExposureOffset", NULL},
 255     {TIFFTAG_PROFILELOOKTABLEENCODING, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ProfileLookTableEncoding", NULL},
 256     {TIFFTAG_PROFILEHUESATMAPENCODING, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ProfileHueSatMapEncoding", NULL},
 257     {TIFFTAG_ORIGINALDEFAULTFINALSIZE, 2, 2, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OriginalDefaultFinalSize", NULL},
 258     {TIFFTAG_ORIGINALBESTQUALITYFINALSIZE, 2, 2, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OriginalBestQualityFinalSize", NULL},
 259     {TIFFTAG_ORIGINALDEFAULTCROPSIZE, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OriginalDefaultCropSize", NULL}, /* could also be rational */
 260     {TIFFTAG_NEWRAWIMAGEDIGEST, 16, 16, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "NewRawImageDigest", NULL},
 261     {TIFFTAG_RAWTOPREVIEWGAIN, 1, 1, TIFF_DOUBLE, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RawToPreviewGain", NULL},
 262     /* begin DNG 1.5.0.0 tags */
 263     {TIFFTAG_DEPTHFORMAT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DepthFormat", NULL},
 264     {TIFFTAG_DEPTHNEAR, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DepthNear", NULL},
 265     {TIFFTAG_DEPTHFAR, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DepthFar", NULL},
 266     {TIFFTAG_DEPTHUNITS, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DepthUnits", NULL},
 267     {TIFFTAG_DEPTHMEASURETYPE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DepthMeasureType", NULL},
 268     {TIFFTAG_ENHANCEPARAMS, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EnhanceParams", NULL},
 269     /* begin DNG 1.6.0.0 tags */
 270     {TIFFTAG_PROFILEGAINTABLEMAP, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileGainTableMap", NULL},
 271     {TIFFTAG_SEMANTICNAME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SemanticName", NULL},
 272     {TIFFTAG_SEMANTICINSTANCEID, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SemanticInstanceID", NULL},
 273     {TIFFTAG_MASKSUBAREA, 4, 4, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MaskSubArea", NULL},
 274     {TIFFTAG_RGBTABLES, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "RGBTables", NULL},
 275     {TIFFTAG_CALIBRATIONILLUMINANT3, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CalibrationIlluminant3", NULL},
 276     {TIFFTAG_COLORMATRIX3, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ColorMatrix3", NULL},
 277     {TIFFTAG_CAMERACALIBRATION3, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CameraCalibration3", NULL},
 278     {TIFFTAG_REDUCTIONMATRIX3, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ReductionMatrix3", NULL},
 279     {TIFFTAG_PROFILEHUESATMAPDATA3, -1, -1, TIFF_FLOAT, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProfileHueSatMapData3", NULL},
 280     {TIFFTAG_FORWARDMATRIX3, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ForwardMatrix3", NULL},
 281     {TIFFTAG_ILLUMINANTDATA1, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "IlluminantData1", NULL},
 282     {TIFFTAG_ILLUMINANTDATA2, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "IlluminantData2", NULL},
 283     {TIFFTAG_ILLUMINANTDATA3, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "IlluminantData3", NULL},
 284     /* end DNG tags */
 285     /* begin TIFF/EP tags */
 286     {TIFFTAG_EP_CFAREPEATPATTERNDIM, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP CFARepeatPatternDim", NULL},
 287     {TIFFTAG_EP_CFAPATTERN, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP CFAPattern", NULL},
 288     /* TIFFTAG_EP_BATTERYLEVEL can be RATIONAL or ASCII.
 289      * LibTiff defines it as ASCII and converts RATIONAL to an ASCII string. */
 290     {TIFFTAG_EP_BATTERYLEVEL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP BatteryLevel", NULL},
 291     {TIFFTAG_EP_INTERLACE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP Interlace", NULL},
 292     /* TIFFTAG_EP_IPTC_NAA and TIFFTAG_RICHTIFFIPTC share the same tag number (33723)
 293      *   LibTIFF type is UNDEFINED or BYTE, but often times incorrectly specified as LONG, because TIFF/EP (ISO/DIS 12234-2) specifies type LONG or ASCII. */
 294     {TIFFTAG_EP_TIMEZONEOFFSET, -1, -1, TIFF_SSHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP TimeZoneOffset", NULL},
 295     {TIFFTAG_EP_SELFTIMERMODE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP SelfTimerMode", NULL},
 296     {TIFFTAG_EP_FLASHENERGY, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP FlashEnergy", NULL},
 297     {TIFFTAG_EP_SPATIALFREQUENCYRESPONSE, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP SpatialFrequencyResponse", NULL},
 298     {TIFFTAG_EP_NOISE, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP Noise", NULL},
 299     {TIFFTAG_EP_FOCALPLANEXRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP FocalPlaneXResolution", NULL},
 300     {TIFFTAG_EP_FOCALPLANEYRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP FocalPlaneYResolution", NULL},
 301     {TIFFTAG_EP_FOCALPLANERESOLUTIONUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP FocalPlaneResolutionUnit", NULL},
 302     {TIFFTAG_EP_IMAGENUMBER, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP ImageNumber", NULL}, /* or SHORT */
 303     {TIFFTAG_EP_SECURITYCLASSIFICATION, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP SecurityClassification", NULL},
 304     {TIFFTAG_EP_IMAGEHISTORY, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP ImageHistory", NULL},
 305     {TIFFTAG_EP_EXPOSUREINDEX, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP ExposureIndex", NULL},
 306     {TIFFTAG_EP_STANDARDID, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP StandardId", NULL},
 307     {TIFFTAG_EP_SENSINGMETHOD, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP SensingMethod", NULL},
 308     /* TIFF/EP tags equivalent to EXIF tags, sometimes defined differently. */
 309     {TIFFTAG_EP_EXPOSURETIME, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP ExposureTime", NULL}, /*N=1 or 2 */
 310     {TIFFTAG_EP_FNUMBER, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP FNumber", NULL},
 311     {TIFFTAG_EP_EXPOSUREPROGRAM, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP ExposureProgram", NULL},
 312     {TIFFTAG_EP_SPECTRALSENSITIVITY, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP SpectralSensitivity", NULL},
 313     {TIFFTAG_EP_ISOSPEEDRATINGS, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP ISOSpeedRatings", NULL},
 314     {TIFFTAG_EP_OECF, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP OptoelectricConversionFactor", NULL},
 315     {TIFFTAG_EP_DATETIMEORIGINAL, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP DateTimeOriginal", NULL},
 316     {TIFFTAG_EP_COMPRESSEDBITSPERPIXEL, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP CompressedBitsPerPixel", NULL},
 317     {TIFFTAG_EP_SHUTTERSPEEDVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP ShutterSpeedValue", NULL},
 318     {TIFFTAG_EP_APERTUREVALUE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP ApertureValue", NULL},
 319     {TIFFTAG_EP_BRIGHTNESSVALUE, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP BrightnessValue", NULL},
 320     {TIFFTAG_EP_EXPOSUREBIASVALUE, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP ExposureBiasValue", NULL}, /*N=1 or 2 */
 321     {TIFFTAG_EP_MAXAPERTUREVALUE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP MaxApertureValue", NULL},
 322     {TIFFTAG_EP_SUBJECTDISTANCE, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP SubjectDistance", NULL},
 323     {TIFFTAG_EP_METERINGMODE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP MeteringMode", NULL},
 324     {TIFFTAG_EP_LIGHTSOURCE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP LightSource", NULL},
 325     {TIFFTAG_EP_FLASH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "EP Flash", NULL},
 326     {TIFFTAG_EP_FOCALLENGTH, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP FocalLength", NULL},
 327     {TIFFTAG_EP_SUBJECTLOCATION, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "EP SubjectLocation", NULL},
 328     /* end TIFF/EP tags */
 329 #endif
 330     /* begin TIFF/FX tags */
 331     {TIFFTAG_INDEXED, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Indexed", NULL},
 332     {TIFFTAG_GLOBALPARAMETERSIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "GlobalParametersIFD", NULL},
 333     {TIFFTAG_PROFILETYPE, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ProfileType", NULL},
 334     {TIFFTAG_FAXPROFILE, 1, 1, TIFF_BYTE, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FaxProfile", NULL},
 335     {TIFFTAG_CODINGMETHODS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CodingMethods", NULL},
 336     {TIFFTAG_VERSIONYEAR, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "VersionYear", NULL},
 337     {TIFFTAG_MODENUMBER, 1, 1, TIFF_BYTE, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ModeNumber", NULL},
 338     {TIFFTAG_DECODE, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "Decode", NULL},
 339     {TIFFTAG_IMAGEBASECOLOR, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ImageBaseColor", NULL},
 340     {TIFFTAG_T82OPTIONS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "T82Options", NULL},
 341     {TIFFTAG_STRIPROWCOUNTS, -1, -1, TIFF_LONG, 0, TIFF_SETGET_C16_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "StripRowCounts", NULL},
 342     {TIFFTAG_IMAGELAYER, 2, 2, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageLayer", NULL},
 343     /* end TIFF/FX tags */
 344     /* begin pseudo tags */
 345 };
 346
 347 /*
 348  * EXIF tags  (Version 2.31, July 2016 plus version 2.32 May 2019)
 349  */
 350 static const TIFFField exifFields[] = {
 351     {EXIFTAG_EXPOSURETIME, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureTime", NULL},
 352     {EXIFTAG_FNUMBER, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FNumber", NULL},
 353     {EXIFTAG_EXPOSUREPROGRAM, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureProgram", NULL},
 354     {EXIFTAG_SPECTRALSENSITIVITY, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SpectralSensitivity", NULL},
 355     /* After EXIF 2.2.1 ISOSpeedRatings is named PhotographicSensitivity. In addition, while "Count=Any", only 1 count should be used. */
 356     {EXIFTAG_ISOSPEEDRATINGS, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ISOSpeedRatings", NULL},
 357     {EXIFTAG_OECF, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OptoelectricConversionFactor", NULL},
 358     {EXIFTAG_SENSITIVITYTYPE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SensitivityType", NULL},
 359     {EXIFTAG_STANDARDOUTPUTSENSITIVITY, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "StandardOutputSensitivity", NULL},
 360     {EXIFTAG_RECOMMENDEDEXPOSUREINDEX, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RecommendedExposureIndex", NULL},
 361     {EXIFTAG_ISOSPEED, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ISOSpeed", NULL},
 362     {EXIFTAG_ISOSPEEDLATITUDEYYY, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ISOSpeedLatitudeyyy", NULL},
 363     {EXIFTAG_ISOSPEEDLATITUDEZZZ, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ISOSpeedLatitudezzz", NULL},
 364     {EXIFTAG_EXIFVERSION, 4, 4, TIFF_UNDEFINED, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExifVersion", NULL},
 365     {EXIFTAG_DATETIMEORIGINAL, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateTimeOriginal", NULL},
 366     {EXIFTAG_DATETIMEDIGITIZED, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateTimeDigitized", NULL},
 367     {EXIFTAG_OFFSETTIME, 7, 7, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OffsetTime", NULL},
 368     {EXIFTAG_OFFSETTIMEORIGINAL, 7, 7, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OffsetTimeOriginal", NULL},
 369     {EXIFTAG_OFFSETTIMEDIGITIZED, 7, 7, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "OffsetTimeDigitized", NULL},
 370     {EXIFTAG_COMPONENTSCONFIGURATION, 4, 4, TIFF_UNDEFINED, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ComponentsConfiguration", NULL},
 371     {EXIFTAG_COMPRESSEDBITSPERPIXEL, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CompressedBitsPerPixel", NULL},
 372     {EXIFTAG_SHUTTERSPEEDVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ShutterSpeedValue", NULL},
 373     {EXIFTAG_APERTUREVALUE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ApertureValue", NULL},
 374     {EXIFTAG_BRIGHTNESSVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BrightnessValue", NULL},
 375     {EXIFTAG_EXPOSUREBIASVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureBiasValue", NULL},
 376     {EXIFTAG_MAXAPERTUREVALUE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MaxApertureValue", NULL},
 377     /*--: EXIFTAG_SUBJECTDISTANCE: LibTiff returns value of "-1" if numerator equals 4294967295 (0xFFFFFFFF) to indicate infinite distance!
 378      *    However, there are two other EXIF tags where numerator indicates a special value and six other cases where the denominator indicates special values,
 379      *    which are not treated within LibTiff!! */
 380     {EXIFTAG_SUBJECTDISTANCE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubjectDistance", NULL},
 381     {EXIFTAG_METERINGMODE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MeteringMode", NULL},
 382     {EXIFTAG_LIGHTSOURCE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LightSource", NULL},
 383     {EXIFTAG_FLASH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Flash", NULL},
 384     {EXIFTAG_FOCALLENGTH, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalLength", NULL},
 385     {EXIFTAG_SUBJECTAREA, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "SubjectArea", NULL},
 386     {EXIFTAG_MAKERNOTE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "MakerNote", NULL},
 387     {EXIFTAG_USERCOMMENT, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "UserComment", NULL},
 388     {EXIFTAG_SUBSECTIME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubSecTime", NULL},
 389     {EXIFTAG_SUBSECTIMEORIGINAL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubSecTimeOriginal", NULL},
 390     {EXIFTAG_SUBSECTIMEDIGITIZED, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubSecTimeDigitized", NULL},
 391     {EXIFTAG_TEMPERATURE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Temperature", NULL},
 392     {EXIFTAG_HUMIDITY, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Humidity", NULL},
 393     {EXIFTAG_PRESSURE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Pressure", NULL},
 394     {EXIFTAG_WATERDEPTH, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "WaterDepth", NULL},
 395     {EXIFTAG_ACCELERATION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Acceleration", NULL},
 396     {EXIFTAG_CAMERAELEVATIONANGLE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CameraElevationAngle", NULL},
 397     {EXIFTAG_FLASHPIXVERSION, 4, 4, TIFF_UNDEFINED, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FlashpixVersion", NULL},
 398     {EXIFTAG_COLORSPACE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ColorSpace", NULL},
 399     {EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PixelXDimension", NULL},
 400     {EXIFTAG_PIXELYDIMENSION, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PixelYDimension", NULL},
 401     {EXIFTAG_RELATEDSOUNDFILE, 13, 13, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RelatedSoundFile", NULL},
 402     {EXIFTAG_FLASHENERGY, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FlashEnergy", NULL},
 403     {EXIFTAG_SPATIALFREQUENCYRESPONSE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "SpatialFrequencyResponse", NULL},
 404     {EXIFTAG_FOCALPLANEXRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalPlaneXResolution", NULL},
 405     {EXIFTAG_FOCALPLANEYRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalPlaneYResolution", NULL},
 406     {EXIFTAG_FOCALPLANERESOLUTIONUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalPlaneResolutionUnit", NULL},
 407     {EXIFTAG_SUBJECTLOCATION, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubjectLocation", NULL},
 408     {EXIFTAG_EXPOSUREINDEX, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureIndex", NULL},
 409     {EXIFTAG_SENSINGMETHOD, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SensingMethod", NULL},
 410     {EXIFTAG_FILESOURCE, 1, 1, TIFF_UNDEFINED, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FileSource", NULL},
 411     {EXIFTAG_SCENETYPE, 1, 1, TIFF_UNDEFINED, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SceneType", NULL},
 412     {EXIFTAG_CFAPATTERN, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CFAPattern", NULL},
 413     {EXIFTAG_CUSTOMRENDERED, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CustomRendered", NULL},
 414     {EXIFTAG_EXPOSUREMODE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureMode", NULL},
 415     {EXIFTAG_WHITEBALANCE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "WhiteBalance", NULL},
 416     {EXIFTAG_DIGITALZOOMRATIO, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DigitalZoomRatio", NULL},
 417     {EXIFTAG_FOCALLENGTHIN35MMFILM, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalLengthIn35mmFilm", NULL},
 418     {EXIFTAG_SCENECAPTURETYPE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SceneCaptureType", NULL},
 419     {EXIFTAG_GAINCONTROL, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "GainControl", NULL},
 420     {EXIFTAG_CONTRAST, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Contrast", NULL},
 421     {EXIFTAG_SATURATION, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Saturation", NULL},
 422     {EXIFTAG_SHARPNESS, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Sharpness", NULL},
 423     {EXIFTAG_DEVICESETTINGDESCRIPTION, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "DeviceSettingDescription", NULL},
 424     {EXIFTAG_SUBJECTDISTANCERANGE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubjectDistanceRange", NULL},
 425     {EXIFTAG_IMAGEUNIQUEID, 33, 33, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageUniqueID", NULL},
 426     {EXIFTAG_CAMERAOWNERNAME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CameraOwnerName", NULL},
 427     {EXIFTAG_BODYSERIALNUMBER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BodySerialNumber", NULL},
 428     {EXIFTAG_LENSSPECIFICATION, 4, 4, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LensSpecification", NULL},
 429     {EXIFTAG_LENSMAKE, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LensMake", NULL},
 430     {EXIFTAG_LENSMODEL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LensModel", NULL},
 431     {EXIFTAG_LENSSERIALNUMBER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LensSerialNumber", NULL},
 432     {EXIFTAG_GAMMA, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Gamma", NULL},
 433     {EXIFTAG_COMPOSITEIMAGE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CompositeImage", NULL},
 434     {EXIFTAG_SOURCEIMAGENUMBEROFCOMPOSITEIMAGE, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SourceImageNumberOfCompositeImage", NULL},
 435     {EXIFTAG_SOURCEEXPOSURETIMESOFCOMPOSITEIMAGE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1,
 436      "SourceExposureTimesOfCompositeImage", NULL}};
 437 /*
 438  * EXIF-GPS tags  (Version 2.31, July 2016; nothing changed for version 2.32 May
 439  * 2019)
 440  */
 441
 442 static const TIFFField gpsFields[] = {
 443     /*  For the GPS tag definitions in gpsFields[] the standard definition for Rationals is TIFF_SETGET_DOUBLE and TIFF_SETGET_C0_FLOAT.
 444      *-- ATTENTION: After the upgrade with Rational2Double, the GPSTAG values can now be written and also read in double precision!
 445      *              In order to achieve double precision for GPS tags: Standard definitions for GPSTAG is kept to TIFF_SETGET_DOUBLE
 446      *              and TIFF_SETGET_C0_FLOAT is changed to TIFF_SETGET_C0_DOUBLE.
 447      */
 448     {GPSTAG_VERSIONID, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UINT8, FIELD_CUSTOM, 1, 0, "VersionID", NULL},
 449     {GPSTAG_LATITUDEREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LatitudeRef", NULL},
 450     {GPSTAG_LATITUDE, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Latitude", NULL},
 451     {GPSTAG_LONGITUDEREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LongitudeRef", NULL},
 452     {GPSTAG_LONGITUDE, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Longitude", NULL},
 453     {GPSTAG_ALTITUDEREF, 1, 1, TIFF_BYTE, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "AltitudeRef", NULL},
 454     {GPSTAG_ALTITUDE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Altitude", NULL},
 455     {GPSTAG_TIMESTAMP, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TimeStamp", NULL},
 456     {GPSTAG_SATELLITES, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Satellites", NULL},
 457     {GPSTAG_STATUS, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Status", NULL},
 458     {GPSTAG_MEASUREMODE, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MeasureMode", NULL},
 459     {GPSTAG_DOP, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DOP", NULL},
 460     {GPSTAG_SPEEDREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SpeedRef", NULL},
 461     {GPSTAG_SPEED, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Speed", NULL},
 462     {GPSTAG_TRACKREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TrackRef", NULL},
 463     {GPSTAG_TRACK, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Track", NULL},
 464     {GPSTAG_IMGDIRECTIONREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImgDirectionRef", NULL},
 465     {GPSTAG_IMGDIRECTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImgDirection", NULL},
 466     {GPSTAG_MAPDATUM, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MapDatum", NULL},
 467     {GPSTAG_DESTLATITUDEREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestLatitudeRef", NULL},
 468     {GPSTAG_DESTLATITUDE, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestLatitude", NULL},
 469     {GPSTAG_DESTLONGITUDEREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestLongitudeRef", NULL},
 470     {GPSTAG_DESTLONGITUDE, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestLongitude", NULL},
 471     {GPSTAG_DESTBEARINGREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestBearingRef", NULL},
 472     {GPSTAG_DESTBEARING, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestBearing", NULL},
 473     {GPSTAG_DESTDISTANCEREF, 2, 2, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestDistanceRef", NULL},
 474     {GPSTAG_DESTDISTANCE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DestDistance", NULL},
 475     {GPSTAG_PROCESSINGMETHOD, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ProcessingMethod", NULL},
 476     {GPSTAG_AREAINFORMATION, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "AreaInformation", NULL},
 477     {GPSTAG_DATESTAMP, 11, 11, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateStamp", NULL},
 478     {GPSTAG_DIFFERENTIAL, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Differential", NULL},
 479     {GPSTAG_GPSHPOSITIONINGERROR, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "HorizontalPositioningError", NULL}};
 480 /* clang-format on */ /* was off for better readability of tag comments */
 481
 482 static const TIFFFieldArray tiffFieldArray = {
 483     tfiatImage, 0, TIFFArrayCount(tiffFields), (TIFFField *)tiffFields};
 484 static const TIFFFieldArray exifFieldArray = {
 485     tfiatExif, 0, TIFFArrayCount(exifFields), (TIFFField *)exifFields};
 486 static const TIFFFieldArray gpsFieldArray = {
 487     tfiatGps, 0, TIFFArrayCount(gpsFields), (TIFFField *)gpsFields};
 488
 489 /*
 490  *  We have our own local lfind() equivalent to avoid subtle differences
 491  *  in types passed to lfind() on different systems.
 492  */
 493
 494 static void *td_lfind(const void *key, const void *base, size_t *nmemb,
 495                       size_t size, int (*compar)(const void *, const void *))
 496 {
 497     char *element, *end;
 498
 499     end = (char *)base + *nmemb * size;
 500     for (element = (char *)base; element < end; element += size)
 501         if (!compar(key, element)) /* key found */
 502             return element;
 503
 504     return NULL;
 505 }
 506
 507 const TIFFFieldArray *_TIFFGetFields(void) { return (&tiffFieldArray); }
 508
 509 const TIFFFieldArray *_TIFFGetExifFields(void) { return (&exifFieldArray); }
 510
 511 const TIFFFieldArray *_TIFFGetGpsFields(void) { return (&gpsFieldArray); }
 512
 513 void _TIFFSetupFields(TIFF *tif, const TIFFFieldArray *fieldarray)
 514 {
 515     if (tif->tif_fields && tif->tif_nfields > 0)
 516     {
 517         uint32_t i;
 518
 519         for (i = 0; i < tif->tif_nfields; i++)
 520         {
 521             TIFFField *fld = tif->tif_fields[i];
 522             if (fld->field_name != NULL)
 523             {
 524                 if (fld->field_bit == FIELD_CUSTOM && TIFFFieldIsAnonymous(fld))
 525                 {
 526                     _TIFFfreeExt(tif, fld->field_name);
 527                     /* caution: tif_fields[i] must not be the beginning of a
 528                      * fields-array. Otherwise the following tags are also freed
 529                      * with the first free().
 530                      */
 531                     _TIFFfreeExt(tif, fld);
 532                 }
 533             }
 534         }
 535
 536         _TIFFfreeExt(tif, tif->tif_fields);
 537         tif->tif_fields = NULL;
 538         tif->tif_nfields = 0;
 539     }
 540     if (!_TIFFMergeFields(tif, fieldarray->fields, fieldarray->count))
 541     {
 542         TIFFErrorExtR(tif, "_TIFFSetupFields", "Setting up field info failed");
 543     }
 544 }
 545
 546 static int tagCompare(const void *a, const void *b)
 547 {
 548     const TIFFField *ta = *(const TIFFField **)a;
 549     const TIFFField *tb = *(const TIFFField **)b;
 550     /* NB: be careful of return values for 16-bit platforms */
 551     if (ta->field_tag != tb->field_tag)
 552         return (int)ta->field_tag - (int)tb->field_tag;
 553     else
 554         return (ta->field_type == TIFF_ANY)
 555                    ? 0
 556                    : ((int)tb->field_type - (int)ta->field_type);
 557 }
 558
 559 static int tagNameCompare(const void *a, const void *b)
 560 {
 561     const TIFFField *ta = *(const TIFFField **)a;
 562     const TIFFField *tb = *(const TIFFField **)b;
 563     int ret = strcmp(ta->field_name, tb->field_name);
 564
 565     if (ret)
 566         return ret;
 567     else
 568         return (ta->field_type == TIFF_ANY)
 569                    ? 0
 570                    : ((int)tb->field_type - (int)ta->field_type);
 571 }
 572
 573 int _TIFFMergeFields(TIFF *tif, const TIFFField info[], uint32_t n)
 574 {
 575     static const char module[] = "_TIFFMergeFields";
 576     static const char reason[] = "for fields array";
 577     /* TIFFField** tp; */
 578     uint32_t i;
 579
 580     tif->tif_foundfield = NULL;
 581
 582     if (tif->tif_fields && tif->tif_nfields > 0)
 583     {
 584         tif->tif_fields = (TIFFField **)_TIFFCheckRealloc(
 585             tif, tif->tif_fields, (tif->tif_nfields + n), sizeof(TIFFField *),
 586             reason);
 587     }
 588     else
 589     {
 590         tif->tif_fields =
 591             (TIFFField **)_TIFFCheckMalloc(tif, n, sizeof(TIFFField *), reason);
 592     }
 593     if (!tif->tif_fields)
 594     {
 595         TIFFErrorExtR(tif, module, "Failed to allocate fields array");
 596         return 0;
 597     }
 598
 599     /* tp = tif->tif_fields + tif->tif_nfields; */
 600     for (i = 0; i < n; i++)
 601     {
 602         const TIFFField *fip = TIFFFindField(tif, info[i].field_tag, TIFF_ANY);
 603
 604         /* only add definitions that aren't already present */
 605         if (!fip)
 606         {
 607             tif->tif_fields[tif->tif_nfields] = (TIFFField *)(info + i);
 608             tif->tif_nfields++;
 609         }
 610     }
 611
 612     /* Sort the field info by tag number */
 613     qsort(tif->tif_fields, tif->tif_nfields, sizeof(TIFFField *), tagCompare);
 614
 615     return n;
 616 }
 617
 618 void _TIFFPrintFieldInfo(TIFF *tif, FILE *fd)
 619 {
 620     uint32_t i;
 621
 622     fprintf(fd, "%s: \n", tif->tif_name);
 623     for (i = 0; i < tif->tif_nfields; i++)
 624     {
 625         const TIFFField *fip = tif->tif_fields[i];
 626         fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n",
 627                 (int)i, (unsigned long)fip->field_tag, fip->field_readcount,
 628                 fip->field_writecount, fip->field_type, fip->field_bit,
 629                 fip->field_oktochange ? "TRUE" : "FALSE",
 630                 fip->field_passcount ? "TRUE" : "FALSE", fip->field_name);
 631     }
 632 }
 633
 634 /*
 635  * Return size of TIFFDataType within TIFF-file in bytes
 636  */
 637 int TIFFDataWidth(TIFFDataType type)
 638 {
 639     switch (type)
 640     {
 641         case 0: /* nothing */
 642         case TIFF_BYTE:
 643         case TIFF_ASCII:
 644         case TIFF_SBYTE:
 645         case TIFF_UNDEFINED:
 646             return 1;
 647         case TIFF_SHORT:
 648         case TIFF_SSHORT:
 649             return 2;
 650         case TIFF_LONG:
 651         case TIFF_SLONG:
 652         case TIFF_FLOAT:
 653         case TIFF_IFD:
 654             return 4;
 655         case TIFF_RATIONAL:
 656         case TIFF_SRATIONAL:
 657         case TIFF_DOUBLE:
 658         case TIFF_LONG8:
 659         case TIFF_SLONG8:
 660         case TIFF_IFD8:
 661             return 8;
 662         default:
 663             return 0; /* will return 0 for unknown types */
 664     }
 665 }
 666
 667 /*
 668  * Return internal storage size of TIFFSetGetFieldType in bytes.
 669  * TIFFSetField() and TIFFGetField() have to provide the parameter accordingly.
 670  * Replaces internal functions _TIFFDataSize() and _TIFFSetGetFieldSize()
 671  * with now extern available function TIFFFieldSetGetSize().
 672  */
 673 int TIFFFieldSetGetSize(const TIFFField *fip)
 674 {
 675     /*
 676      * TIFFSetField() and TIFFGetField() must provide the parameter accordingly
 677      * to the definition of "set_field_type" of the tag definition in
 678      * dir_info.c. This function returns the data size for that purpose.
 679      *
 680      * Furthermore, this data size is also used for the internal storage,
 681      * even for TIFF_RATIONAL values for FIELD_CUSTOM, which are stored
 682      * internally as 4-byte float, but some of them should be stored internally
 683      * as 8-byte double, depending on the "set_field_type" _FLOAT_ or _DOUBLE_.
 684      */
 685     if (fip == NULL)
 686         return 0;
 687
 688     switch (fip->set_field_type)
 689     {
 690         case TIFF_SETGET_UNDEFINED:
 691         case TIFF_SETGET_ASCII:
 692         case TIFF_SETGET_C0_ASCII:
 693         case TIFF_SETGET_C16_ASCII:
 694         case TIFF_SETGET_C32_ASCII:
 695         case TIFF_SETGET_OTHER:
 696             return 1;
 697         case TIFF_SETGET_UINT8:
 698         case TIFF_SETGET_SINT8:
 699         case TIFF_SETGET_C0_UINT8:
 700         case TIFF_SETGET_C0_SINT8:
 701         case TIFF_SETGET_C16_UINT8:
 702         case TIFF_SETGET_C16_SINT8:
 703         case TIFF_SETGET_C32_UINT8:
 704         case TIFF_SETGET_C32_SINT8:
 705             return 1;
 706         case TIFF_SETGET_UINT16:
 707         case TIFF_SETGET_SINT16:
 708         case TIFF_SETGET_C0_UINT16:
 709         case TIFF_SETGET_C0_SINT16:
 710         case TIFF_SETGET_C16_UINT16:
 711         case TIFF_SETGET_C16_SINT16:
 712         case TIFF_SETGET_C32_UINT16:
 713         case TIFF_SETGET_C32_SINT16:
 714             return 2;
 715         case TIFF_SETGET_INT:
 716         case TIFF_SETGET_UINT32:
 717         case TIFF_SETGET_SINT32:
 718         case TIFF_SETGET_FLOAT:
 719         case TIFF_SETGET_UINT16_PAIR:
 720         case TIFF_SETGET_C0_UINT32:
 721         case TIFF_SETGET_C0_SINT32:
 722         case TIFF_SETGET_C0_FLOAT:
 723         case TIFF_SETGET_C16_UINT32:
 724         case TIFF_SETGET_C16_SINT32:
 725         case TIFF_SETGET_C16_FLOAT:
 726         case TIFF_SETGET_C32_UINT32:
 727         case TIFF_SETGET_C32_SINT32:
 728         case TIFF_SETGET_C32_FLOAT:
 729             return 4;
 730         case TIFF_SETGET_UINT64:
 731         case TIFF_SETGET_SINT64:
 732         case TIFF_SETGET_DOUBLE:
 733         case TIFF_SETGET_IFD8:
 734         case TIFF_SETGET_C0_UINT64:
 735         case TIFF_SETGET_C0_SINT64:
 736         case TIFF_SETGET_C0_DOUBLE:
 737         case TIFF_SETGET_C0_IFD8:
 738         case TIFF_SETGET_C16_UINT64:
 739         case TIFF_SETGET_C16_SINT64:
 740         case TIFF_SETGET_C16_DOUBLE:
 741         case TIFF_SETGET_C16_IFD8:
 742         case TIFF_SETGET_C32_UINT64:
 743         case TIFF_SETGET_C32_SINT64:
 744         case TIFF_SETGET_C32_DOUBLE:
 745         case TIFF_SETGET_C32_IFD8:
 746             return 8;
 747         default:
 748             return 0;
 749     }
 750 } /*-- TIFFFieldSetGetSize() --- */
 751
 752 /*
 753  * Return size of count parameter of TIFFSetField() and TIFFGetField()
 754  * and also if it is required:  0=none, 2=uint16_t, 4=uint32_t
 755  */
 756 int TIFFFieldSetGetCountSize(const TIFFField *fip)
 757 {
 758     if (fip == NULL)
 759         return 0;
 760
 761     switch (fip->set_field_type)
 762     {
 763         case TIFF_SETGET_C16_ASCII:
 764         case TIFF_SETGET_C16_UINT8:
 765         case TIFF_SETGET_C16_SINT8:
 766         case TIFF_SETGET_C16_UINT16:
 767         case TIFF_SETGET_C16_SINT16:
 768         case TIFF_SETGET_C16_UINT32:
 769         case TIFF_SETGET_C16_SINT32:
 770         case TIFF_SETGET_C16_FLOAT:
 771         case TIFF_SETGET_C16_UINT64:
 772         case TIFF_SETGET_C16_SINT64:
 773         case TIFF_SETGET_C16_DOUBLE:
 774         case TIFF_SETGET_C16_IFD8:
 775             return 2;
 776         case TIFF_SETGET_C32_ASCII:
 777         case TIFF_SETGET_C32_UINT8:
 778         case TIFF_SETGET_C32_SINT8:
 779         case TIFF_SETGET_C32_UINT16:
 780         case TIFF_SETGET_C32_SINT16:
 781         case TIFF_SETGET_C32_UINT32:
 782         case TIFF_SETGET_C32_SINT32:
 783         case TIFF_SETGET_C32_FLOAT:
 784         case TIFF_SETGET_C32_UINT64:
 785         case TIFF_SETGET_C32_SINT64:
 786         case TIFF_SETGET_C32_DOUBLE:
 787         case TIFF_SETGET_C32_IFD8:
 788             return 4;
 789         default:
 790             return 0;
 791     }
 792 } /*-- TIFFFieldSetGetCountSize() --- */
 793
 794 const TIFFField *TIFFFindField(TIFF *tif, uint32_t tag, TIFFDataType dt)
 795 {
 796     TIFFField key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0, 0, 0, NULL, NULL};
 797     TIFFField *pkey = &key;
 798     const TIFFField **ret;
 799     if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag &&
 800         (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
 801         return tif->tif_foundfield;
 802
 803     /* If we are invoked with no field information, then just return. */
 804     if (!tif->tif_fields)
 805         return NULL;
 806
 807     /* NB: use sorted search (e.g. binary search) */
 808
 809     key.field_tag = tag;
 810     key.field_type = dt;
 811
 812     ret = (const TIFFField **)bsearch(&pkey, tif->tif_fields, tif->tif_nfields,
 813                                       sizeof(TIFFField *), tagCompare);
 814     return tif->tif_foundfield = (ret ? *ret : NULL);
 815 }
 816
 817 static const TIFFField *_TIFFFindFieldByName(TIFF *tif, const char *field_name,
 818                                              TIFFDataType dt)
 819 {
 820     TIFFField key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0, 0, 0, NULL, NULL};
 821     TIFFField *pkey = &key;
 822     const TIFFField **ret;
 823     if (tif->tif_foundfield &&
 824         streq(tif->tif_foundfield->field_name, field_name) &&
 825         (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
 826         return (tif->tif_foundfield);
 827
 828     /* If we are invoked with no field information, then just return. */
 829     if (!tif->tif_fields)
 830         return NULL;
 831
 832     /* NB: use linear search since list is sorted by key#, not name */
 833
 834     key.field_name = (char *)field_name;
 835     key.field_type = dt;
 836
 837     ret =
 838         (const TIFFField **)td_lfind(&pkey, tif->tif_fields, &tif->tif_nfields,
 839                                      sizeof(TIFFField *), tagNameCompare);
 840
 841     return tif->tif_foundfield = (ret ? *ret : NULL);
 842 }
 843
 844 const TIFFField *TIFFFieldWithTag(TIFF *tif, uint32_t tag)
 845 {
 846     const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY);
 847     if (!fip)
 848     {
 849         TIFFWarningExtR(tif, "TIFFFieldWithTag", "Warning, unknown tag 0x%x",
 850                         (unsigned int)tag);
 851     }
 852     return (fip);
 853 }
 854
 855 const TIFFField *TIFFFieldWithName(TIFF *tif, const char *field_name)
 856 {
 857     const TIFFField *fip = _TIFFFindFieldByName(tif, field_name, TIFF_ANY);
 858     if (!fip)
 859     {
 860         TIFFWarningExtR(tif, "TIFFFieldWithName", "Warning, unknown tag %s",
 861                         field_name);
 862     }
 863     return (fip);
 864 }
 865
 866 uint32_t TIFFFieldTag(const TIFFField *fip) { return fip->field_tag; }
 867
 868 const char *TIFFFieldName(const TIFFField *fip) { return fip->field_name; }
 869
 870 TIFFDataType TIFFFieldDataType(const TIFFField *fip) { return fip->field_type; }
 871
 872 int TIFFFieldPassCount(const TIFFField *fip) { return fip->field_passcount; }
 873
 874 int TIFFFieldReadCount(const TIFFField *fip) { return fip->field_readcount; }
 875
 876 int TIFFFieldWriteCount(const TIFFField *fip) { return fip->field_writecount; }
 877
 878 int TIFFFieldIsAnonymous(const TIFFField *fip) { return fip->field_anonymous; }
 879
 880 const TIFFField *_TIFFFindOrRegisterField(TIFF *tif, uint32_t tag,
 881                                           TIFFDataType dt)
 882
 883 {
 884     const TIFFField *fld;
 885
 886     fld = TIFFFindField(tif, tag, dt);
 887     if (fld == NULL)
 888     {
 889         fld = _TIFFCreateAnonField(tif, tag, dt);
 890         if (!_TIFFMergeFields(tif, fld, 1))
 891             return NULL;
 892     }
 893
 894     return fld;
 895 }
 896
 897 TIFFField *_TIFFCreateAnonField(TIFF *tif, uint32_t tag,
 898                                 TIFFDataType field_type)
 899 {
 900     TIFFField *fld;
 901     (void)tif;
 902
 903     fld = (TIFFField *)_TIFFmallocExt(tif, sizeof(TIFFField));
 904     if (fld == NULL)
 905         return NULL;
 906     _TIFFmemset(fld, 0, sizeof(TIFFField));
 907
 908     fld->field_tag = tag;
 909     fld->field_readcount = TIFF_VARIABLE2;
 910     fld->field_writecount = TIFF_VARIABLE2;
 911     fld->field_type = field_type;
 912     fld->field_anonymous =
 913         1; /* indicate that this is an anonymous / unknown tag */
 914     switch (field_type)
 915     {
 916         case TIFF_BYTE:
 917         case TIFF_UNDEFINED:
 918             fld->set_field_type = TIFF_SETGET_C32_UINT8;
 919             fld->get_field_type = TIFF_SETGET_C32_UINT8;
 920             break;
 921         case TIFF_ASCII:
 922             fld->set_field_type = TIFF_SETGET_C32_ASCII;
 923             fld->get_field_type = TIFF_SETGET_C32_ASCII;
 924             break;
 925         case TIFF_SHORT:
 926             fld->set_field_type = TIFF_SETGET_C32_UINT16;
 927             fld->get_field_type = TIFF_SETGET_C32_UINT16;
 928             break;
 929         case TIFF_LONG:
 930             fld->set_field_type = TIFF_SETGET_C32_UINT32;
 931             fld->get_field_type = TIFF_SETGET_C32_UINT32;
 932             break;
 933         case TIFF_RATIONAL:
 934         case TIFF_SRATIONAL:
 935         case TIFF_FLOAT:
 936             fld->set_field_type = TIFF_SETGET_C32_FLOAT;
 937             fld->get_field_type = TIFF_SETGET_C32_FLOAT;
 938             break;
 939         case TIFF_SBYTE:
 940             fld->set_field_type = TIFF_SETGET_C32_SINT8;
 941             fld->get_field_type = TIFF_SETGET_C32_SINT8;
 942             break;
 943         case TIFF_SSHORT:
 944             fld->set_field_type = TIFF_SETGET_C32_SINT16;
 945             fld->get_field_type = TIFF_SETGET_C32_SINT16;
 946             break;
 947         case TIFF_SLONG:
 948             fld->set_field_type = TIFF_SETGET_C32_SINT32;
 949             fld->get_field_type = TIFF_SETGET_C32_SINT32;
 950             break;
 951         case TIFF_DOUBLE:
 952             fld->set_field_type = TIFF_SETGET_C32_DOUBLE;
 953             fld->get_field_type = TIFF_SETGET_C32_DOUBLE;
 954             break;
 955         case TIFF_IFD:
 956         case TIFF_IFD8:
 957             fld->set_field_type = TIFF_SETGET_C32_IFD8;
 958             fld->get_field_type = TIFF_SETGET_C32_IFD8;
 959             break;
 960         case TIFF_LONG8:
 961             fld->set_field_type = TIFF_SETGET_C32_UINT64;
 962             fld->get_field_type = TIFF_SETGET_C32_UINT64;
 963             break;
 964         case TIFF_SLONG8:
 965             fld->set_field_type = TIFF_SETGET_C32_SINT64;
 966             fld->get_field_type = TIFF_SETGET_C32_SINT64;
 967             break;
 968         default:
 969             fld->set_field_type = TIFF_SETGET_UNDEFINED;
 970             fld->get_field_type = TIFF_SETGET_UNDEFINED;
 971             break;
 972     }
 973     fld->field_bit = FIELD_CUSTOM;
 974     fld->field_oktochange = TRUE;
 975     fld->field_passcount = TRUE;
 976     fld->field_name = (char *)_TIFFmallocExt(tif, 32);
 977     if (fld->field_name == NULL)
 978     {
 979         _TIFFfreeExt(tif, fld);
 980         return NULL;
 981     }
 982     fld->field_subfields = NULL;
 983
 984     /*
 985      * note that this name is a special sign to TIFFClose() and
 986      * _TIFFSetupFields() to free the field
 987      * Update:
 988      *   This special sign is replaced by fld->field_anonymous  flag.
 989      */
 990     (void)snprintf(fld->field_name, 32, "Tag %d", (int)tag);
 991
 992     return fld;
 993 }
 994
 995 /****************************************************************************
 996  *               O B S O L E T E D    I N T E R F A C E S
 997  *
 998  * Don't use this stuff in your applications, it may be removed in the future
 999  * libtiff versions.
1000  ****************************************************************************/
1001
1002 static TIFFSetGetFieldType _TIFFSetGetType(TIFFDataType type, short count,
1003                                            unsigned char passcount)
1004 {
1005     if (type == TIFF_ASCII && count == TIFF_VARIABLE && passcount == 0)
1006         return TIFF_SETGET_ASCII;
1007
1008     else if (count == 1 && passcount == 0)
1009     {
1010         switch (type)
1011         {
1012             case TIFF_BYTE:
1013             case TIFF_UNDEFINED:
1014                 return TIFF_SETGET_UINT8;
1015             case TIFF_ASCII:
1016                 return TIFF_SETGET_ASCII;
1017             case TIFF_SHORT:
1018                 return TIFF_SETGET_UINT16;
1019             case TIFF_LONG:
1020                 return TIFF_SETGET_UINT32;
1021             case TIFF_RATIONAL:
1022             case TIFF_SRATIONAL:
1023             case TIFF_FLOAT:
1024                 return TIFF_SETGET_FLOAT;
1025             case TIFF_SBYTE:
1026                 return TIFF_SETGET_SINT8;
1027             case TIFF_SSHORT:
1028                 return TIFF_SETGET_SINT16;
1029             case TIFF_SLONG:
1030                 return TIFF_SETGET_SINT32;
1031             case TIFF_DOUBLE:
1032                 return TIFF_SETGET_DOUBLE;
1033             case TIFF_IFD:
1034             case TIFF_IFD8:
1035                 return TIFF_SETGET_IFD8;
1036             case TIFF_LONG8:
1037                 return TIFF_SETGET_UINT64;
1038             case TIFF_SLONG8:
1039                 return TIFF_SETGET_SINT64;
1040             default:
1041                 return TIFF_SETGET_UNDEFINED;
1042         }
1043     }
1044
1045     else if (count >= 1 && passcount == 0)
1046     {
1047         switch (type)
1048         {
1049             case TIFF_BYTE:
1050             case TIFF_UNDEFINED:
1051                 return TIFF_SETGET_C0_UINT8;
1052             case TIFF_ASCII:
1053                 return TIFF_SETGET_C0_ASCII;
1054             case TIFF_SHORT:
1055                 return TIFF_SETGET_C0_UINT16;
1056             case TIFF_LONG:
1057                 return TIFF_SETGET_C0_UINT32;
1058             case TIFF_RATIONAL:
1059             case TIFF_SRATIONAL:
1060             case TIFF_FLOAT:
1061                 return TIFF_SETGET_C0_FLOAT;
1062             case TIFF_SBYTE:
1063                 return TIFF_SETGET_C0_SINT8;
1064             case TIFF_SSHORT:
1065                 return TIFF_SETGET_C0_SINT16;
1066             case TIFF_SLONG:
1067                 return TIFF_SETGET_C0_SINT32;
1068             case TIFF_DOUBLE:
1069                 return TIFF_SETGET_C0_DOUBLE;
1070             case TIFF_IFD:
1071             case TIFF_IFD8:
1072                 return TIFF_SETGET_C0_IFD8;
1073             case TIFF_LONG8:
1074                 return TIFF_SETGET_C0_UINT64;
1075             case TIFF_SLONG8:
1076                 return TIFF_SETGET_C0_SINT64;
1077             default:
1078                 return TIFF_SETGET_UNDEFINED;
1079         }
1080     }
1081
1082     else if (count == TIFF_VARIABLE && passcount == 1)
1083     {
1084         switch (type)
1085         {
1086             case TIFF_BYTE:
1087             case TIFF_UNDEFINED:
1088                 return TIFF_SETGET_C16_UINT8;
1089             case TIFF_ASCII:
1090                 return TIFF_SETGET_C16_ASCII;
1091             case TIFF_SHORT:
1092                 return TIFF_SETGET_C16_UINT16;
1093             case TIFF_LONG:
1094                 return TIFF_SETGET_C16_UINT32;
1095             case TIFF_RATIONAL:
1096             case TIFF_SRATIONAL:
1097             case TIFF_FLOAT:
1098                 return TIFF_SETGET_C16_FLOAT;
1099             case TIFF_SBYTE:
1100                 return TIFF_SETGET_C16_SINT8;
1101             case TIFF_SSHORT:
1102                 return TIFF_SETGET_C16_SINT16;
1103             case TIFF_SLONG:
1104                 return TIFF_SETGET_C16_SINT32;
1105             case TIFF_DOUBLE:
1106                 return TIFF_SETGET_C16_DOUBLE;
1107             case TIFF_IFD:
1108             case TIFF_IFD8:
1109                 return TIFF_SETGET_C16_IFD8;
1110             case TIFF_LONG8:
1111                 return TIFF_SETGET_C16_UINT64;
1112             case TIFF_SLONG8:
1113                 return TIFF_SETGET_C16_SINT64;
1114             default:
1115                 return TIFF_SETGET_UNDEFINED;
1116         }
1117     }
1118
1119     else if (count == TIFF_VARIABLE2 && passcount == 1)
1120     {
1121         switch (type)
1122         {
1123             case TIFF_BYTE:
1124             case TIFF_UNDEFINED:
1125                 return TIFF_SETGET_C32_UINT8;
1126             case TIFF_ASCII:
1127                 return TIFF_SETGET_C32_ASCII;
1128             case TIFF_SHORT:
1129                 return TIFF_SETGET_C32_UINT16;
1130             case TIFF_LONG:
1131                 return TIFF_SETGET_C32_UINT32;
1132             case TIFF_RATIONAL:
1133             case TIFF_SRATIONAL:
1134             case TIFF_FLOAT:
1135                 return TIFF_SETGET_C32_FLOAT;
1136             case TIFF_SBYTE:
1137                 return TIFF_SETGET_C32_SINT8;
1138             case TIFF_SSHORT:
1139                 return TIFF_SETGET_C32_SINT16;
1140             case TIFF_SLONG:
1141                 return TIFF_SETGET_C32_SINT32;
1142             case TIFF_DOUBLE:
1143                 return TIFF_SETGET_C32_DOUBLE;
1144             case TIFF_IFD:
1145             case TIFF_IFD8:
1146                 return TIFF_SETGET_C32_IFD8;
1147             case TIFF_LONG8:
1148                 return TIFF_SETGET_C32_UINT64;
1149             case TIFF_SLONG8:
1150                 return TIFF_SETGET_C32_SINT64;
1151             default:
1152                 return TIFF_SETGET_UNDEFINED;
1153         }
1154     }
1155
1156     return TIFF_SETGET_UNDEFINED;
1157 }
1158
1159 int TIFFMergeFieldInfo(TIFF *tif, const TIFFFieldInfo info[], uint32_t n)
1160 {
1161     static const char module[] = "TIFFMergeFieldInfo";
1162     static const char reason[] = "for fields array";
1163     TIFFField *tp;
1164     size_t nfields;
1165     uint32_t i;
1166
1167     if (tif->tif_nfieldscompat > 0)
1168     {
1169         tif->tif_fieldscompat = (TIFFFieldArray *)_TIFFCheckRealloc(
1170             tif, tif->tif_fieldscompat, tif->tif_nfieldscompat + 1,
1171             sizeof(TIFFFieldArray), reason);
1172     }
1173     else
1174     {
1175         tif->tif_fieldscompat = (TIFFFieldArray *)_TIFFCheckMalloc(
1176             tif, 1, sizeof(TIFFFieldArray), reason);
1177     }
1178     if (!tif->tif_fieldscompat)
1179     {
1180         TIFFErrorExtR(tif, module, "Failed to allocate fields array");
1181         return -1;
1182     }
1183     nfields = tif->tif_nfieldscompat++;
1184
1185     tif->tif_fieldscompat[nfields].type = tfiatOther;
1186     tif->tif_fieldscompat[nfields].allocated_size = n;
1187     tif->tif_fieldscompat[nfields].count = n;
1188     tif->tif_fieldscompat[nfields].fields =
1189         (TIFFField *)_TIFFCheckMalloc(tif, n, sizeof(TIFFField), reason);
1190     if (!tif->tif_fieldscompat[nfields].fields)
1191     {
1192         TIFFErrorExtR(tif, module, "Failed to allocate fields array");
1193         return -1;
1194     }
1195
1196     tp = tif->tif_fieldscompat[nfields].fields;
1197     for (i = 0; i < n; i++)
1198     {
1199         tp->field_tag = info[i].field_tag;
1200         tp->field_readcount = info[i].field_readcount;
1201         tp->field_writecount = info[i].field_writecount;
1202         tp->field_type = info[i].field_type;
1203         tp->field_anonymous = 0;
1204         tp->set_field_type =
1205             _TIFFSetGetType(info[i].field_type, info[i].field_readcount,
1206                             info[i].field_passcount);
1207         tp->get_field_type =
1208             _TIFFSetGetType(info[i].field_type, info[i].field_readcount,
1209                             info[i].field_passcount);
1210         tp->field_bit = info[i].field_bit;
1211         tp->field_oktochange = info[i].field_oktochange;
1212         tp->field_passcount = info[i].field_passcount;
1213         if (info[i].field_name == NULL)
1214         {
1215             TIFFErrorExtR(tif, module,
1216                           "Field_name of %d.th allocation tag %d is NULL", i,
1217                           info[i].field_tag);
1218             return -1;
1219         }
1220         tp->field_name = info[i].field_name;
1221         tp->field_subfields = NULL;
1222         tp++;
1223     }
1224
1225     if (!_TIFFMergeFields(tif, tif->tif_fieldscompat[nfields].fields, n))
1226     {
1227         TIFFErrorExtR(tif, module, "Setting up field info failed");
1228         return -1;
1229     }
1230
1231     return 0;
1232 }
1233
1234 int _TIFFCheckFieldIsValidForCodec(TIFF *tif, ttag_t tag)
1235 {
1236     /* Filter out non-codec specific tags */
1237     switch (tag)
1238     {
1239         /* Shared tags */
1240         case TIFFTAG_PREDICTOR:
1241         /* JPEG tags */
1242         case TIFFTAG_JPEGTABLES:
1243         /* OJPEG tags */
1244         case TIFFTAG_JPEGIFOFFSET:
1245         case TIFFTAG_JPEGIFBYTECOUNT:
1246         case TIFFTAG_JPEGQTABLES:
1247         case TIFFTAG_JPEGDCTABLES:
1248         case TIFFTAG_JPEGACTABLES:
1249         case TIFFTAG_JPEGPROC:
1250         case TIFFTAG_JPEGRESTARTINTERVAL:
1251         /* CCITT* */
1252         case TIFFTAG_BADFAXLINES:
1253         case TIFFTAG_CLEANFAXDATA:
1254         case TIFFTAG_CONSECUTIVEBADFAXLINES:
1255         case TIFFTAG_GROUP3OPTIONS:
1256         case TIFFTAG_GROUP4OPTIONS:
1257         /* LERC */
1258         case TIFFTAG_LERC_PARAMETERS:
1259             break;
1260         default:
1261             return 1;
1262     }
1263     if (!TIFFIsCODECConfigured(tif->tif_dir.td_compression))
1264     {
1265         return 0;
1266     }
1267     /* Check if codec specific tags are allowed for the current
1268      * compression scheme (codec) */
1269     switch (tif->tif_dir.td_compression)
1270     {
1271         case COMPRESSION_LZW:
1272             if (tag == TIFFTAG_PREDICTOR)
1273                 return 1;
1274             break;
1275         case COMPRESSION_PACKBITS:
1276             /* No codec-specific tags */
1277             break;
1278         case COMPRESSION_THUNDERSCAN:
1279             /* No codec-specific tags */
1280             break;
1281         case COMPRESSION_NEXT:
1282             /* No codec-specific tags */
1283             break;
1284         case COMPRESSION_JPEG:
1285             if (tag == TIFFTAG_JPEGTABLES)
1286                 return 1;
1287             break;
1288         case COMPRESSION_OJPEG:
1289             switch (tag)
1290             {
1291                 case TIFFTAG_JPEGIFOFFSET:
1292                 case TIFFTAG_JPEGIFBYTECOUNT:
1293                 case TIFFTAG_JPEGQTABLES:
1294                 case TIFFTAG_JPEGDCTABLES:
1295                 case TIFFTAG_JPEGACTABLES:
1296                 case TIFFTAG_JPEGPROC:
1297                 case TIFFTAG_JPEGRESTARTINTERVAL:
1298                     return 1;
1299             }
1300             break;
1301         case COMPRESSION_CCITTRLE:
1302         case COMPRESSION_CCITTRLEW:
1303         case COMPRESSION_CCITTFAX3:
1304         case COMPRESSION_CCITTFAX4:
1305             switch (tag)
1306             {
1307                 case TIFFTAG_BADFAXLINES:
1308                 case TIFFTAG_CLEANFAXDATA:
1309                 case TIFFTAG_CONSECUTIVEBADFAXLINES:
1310                     return 1;
1311                 case TIFFTAG_GROUP3OPTIONS:
1312                     if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX3)
1313                         return 1;
1314                     break;
1315                 case TIFFTAG_GROUP4OPTIONS:
1316                     if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX4)
1317                         return 1;
1318                     break;
1319             }
1320             break;
1321         case COMPRESSION_JBIG:
1322             /* No codec-specific tags */
1323             break;
1324         case COMPRESSION_DEFLATE:
1325         case COMPRESSION_ADOBE_DEFLATE:
1326             if (tag == TIFFTAG_PREDICTOR)
1327                 return 1;
1328             break;
1329         case COMPRESSION_PIXARLOG:
1330             if (tag == TIFFTAG_PREDICTOR)
1331                 return 1;
1332             break;
1333         case COMPRESSION_SGILOG:
1334         case COMPRESSION_SGILOG24:
1335             /* No codec-specific tags */
1336             break;
1337         case COMPRESSION_LZMA:
1338             if (tag == TIFFTAG_PREDICTOR)
1339                 return 1;
1340             break;
1341         case COMPRESSION_ZSTD:
1342             if (tag == TIFFTAG_PREDICTOR)
1343                 return 1;
1344             break;
1345         case COMPRESSION_LERC:
1346             if (tag == TIFFTAG_LERC_PARAMETERS)
1347                 return 1;
1348             break;
1349     }
1350     return 0;
1351 }