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opencv/3rdparty/libtiff/tif_dirinfo.c

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/* $Id: tif_dirinfo.c,v 1.65.2.9 2010-06-09 21:15:27 bfriesen Exp $ */
/*
* Copyright (c) 1988-1997 Sam Leffler
* Copyright (c) 1991-1997 Silicon Graphics, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
/*
* TIFF Library.
*
* Core Directory Tag Support.
*/
#include "tiffiop.h"
#include <stdlib.h>
#include <string.h>
/*
* NB: NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG.
* If a tag can have both LONG and SHORT types then the LONG must be
* placed before the SHORT for writing to work properly.
*
* NOTE: The second field (field_readcount) and third field (field_writecount)
* sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3)
* and TIFFTAG_SPP (-2). The macros should be used but would throw off
* the formatting of the code, so please interprete the -1, -2 and -3
* values accordingly.
*/
static const TIFFFieldInfo
tiffFieldInfo[] = {
{ TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, FIELD_SUBFILETYPE,
1, 0, "SubfileType" },
/* XXX SHORT for compatibility w/ old versions of the library */
{ TIFFTAG_SUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
1, 0, "SubfileType" },
{ TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
1, 0, "OldSubfileType" },
{ TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
0, 0, "ImageWidth" },
{ TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
0, 0, "ImageWidth" },
{ TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
1, 0, "ImageLength" },
{ TIFFTAG_IMAGELENGTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
1, 0, "ImageLength" },
{ TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_SHORT, FIELD_BITSPERSAMPLE,
0, 0, "BitsPerSample" },
/* XXX LONG for compatibility with some broken TIFF writers */
{ TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_LONG, FIELD_BITSPERSAMPLE,
0, 0, "BitsPerSample" },
{ TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION,
0, 0, "Compression" },
/* XXX LONG for compatibility with some broken TIFF writers */
{ TIFFTAG_COMPRESSION, -1, 1, TIFF_LONG, FIELD_COMPRESSION,
0, 0, "Compression" },
{ TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC,
0, 0, "PhotometricInterpretation" },
/* XXX LONG for compatibility with some broken TIFF writers */
{ TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_LONG, FIELD_PHOTOMETRIC,
0, 0, "PhotometricInterpretation" },
{ TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, FIELD_THRESHHOLDING,
1, 0, "Threshholding" },
{ TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
1, 0, "CellWidth" },
{ TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
1, 0, "CellLength" },
{ TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, FIELD_FILLORDER,
0, 0, "FillOrder" },
{ TIFFTAG_DOCUMENTNAME, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "DocumentName" },
{ TIFFTAG_IMAGEDESCRIPTION, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "ImageDescription" },
{ TIFFTAG_MAKE, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "Make" },
{ TIFFTAG_MODEL, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "Model" },
{ TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_LONG, FIELD_STRIPOFFSETS,
0, 0, "StripOffsets" },
{ TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_SHORT, FIELD_STRIPOFFSETS,
0, 0, "StripOffsets" },
{ TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, FIELD_ORIENTATION,
0, 0, "Orientation" },
{ TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, FIELD_SAMPLESPERPIXEL,
0, 0, "SamplesPerPixel" },
{ TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, FIELD_ROWSPERSTRIP,
0, 0, "RowsPerStrip" },
{ TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_SHORT, FIELD_ROWSPERSTRIP,
0, 0, "RowsPerStrip" },
{ TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
0, 0, "StripByteCounts" },
{ TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
0, 0, "StripByteCounts" },
{ TIFFTAG_MINSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MINSAMPLEVALUE,
1, 0, "MinSampleValue" },
{ TIFFTAG_MAXSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MAXSAMPLEVALUE,
1, 0, "MaxSampleValue" },
{ TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
1, 0, "XResolution" },
{ TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
1, 0, "YResolution" },
{ TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, FIELD_PLANARCONFIG,
0, 0, "PlanarConfiguration" },
{ TIFFTAG_PAGENAME, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "PageName" },
{ TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
1, 0, "XPosition" },
{ TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
1, 0, "YPosition" },
{ TIFFTAG_FREEOFFSETS, -1,-1, TIFF_LONG, FIELD_IGNORE,
0, 0, "FreeOffsets" },
{ TIFFTAG_FREEBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_IGNORE,
0, 0, "FreeByteCounts" },
{ TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
1, 0, "GrayResponseUnit" },
{ TIFFTAG_GRAYRESPONSECURVE,-1,-1, TIFF_SHORT, FIELD_IGNORE,
1, 0, "GrayResponseCurve" },
{ TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_RESOLUTIONUNIT,
1, 0, "ResolutionUnit" },
{ TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, FIELD_PAGENUMBER,
1, 0, "PageNumber" },
{ TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
1, 0, "ColorResponseUnit" },
{ TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION,
1, 0, "TransferFunction" },
{ TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "Software" },
{ TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "DateTime" },
{ TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "Artist" },
{ TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "HostComputer" },
{ TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "WhitePoint" },
{ TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "PrimaryChromaticities" },
{ TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP,
1, 0, "ColorMap" },
{ TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS,
1, 0, "HalftoneHints" },
{ TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
0, 0, "TileWidth" },
{ TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
0, 0, "TileWidth" },
{ TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
0, 0, "TileLength" },
{ TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
0, 0, "TileLength" },
{ TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS,
0, 0, "TileOffsets" },
{ TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
0, 0, "TileByteCounts" },
{ TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
0, 0, "TileByteCounts" },
{ TIFFTAG_SUBIFD, -1,-1, TIFF_IFD, FIELD_SUBIFD,
1, 1, "SubIFD" },
{ TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD,
1, 1, "SubIFD" },
{ TIFFTAG_INKSET, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "InkSet" },
{ TIFFTAG_INKNAMES, -1,-1, TIFF_ASCII, FIELD_INKNAMES,
1, 1, "InkNames" },
{ TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "NumberOfInks" },
{ TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "DotRange" },
{ TIFFTAG_DOTRANGE, 2, 2, TIFF_BYTE, FIELD_CUSTOM,
0, 0, "DotRange" },
{ TIFFTAG_TARGETPRINTER, -1,-1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "TargetPrinter" },
{ TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES,
0, 1, "ExtraSamples" },
/* XXX for bogus Adobe Photoshop v2.5 files */
{ TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES,
0, 1, "ExtraSamples" },
{ TIFFTAG_SAMPLEFORMAT, -1,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
0, 0, "SampleFormat" },
{ TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE,
1, 0, "SMinSampleValue" },
{ TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE,
1, 0, "SMaxSampleValue" },
{ TIFFTAG_CLIPPATH, -1, -3, TIFF_BYTE, FIELD_CUSTOM,
0, 1, "ClipPath" },
{ TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SLONG, FIELD_CUSTOM,
0, 0, "XClipPathUnits" },
{ TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SSHORT, FIELD_CUSTOM,
0, 0, "XClipPathUnits" },
{ TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SBYTE, FIELD_CUSTOM,
0, 0, "XClipPathUnits" },
{ TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SLONG, FIELD_CUSTOM,
0, 0, "YClipPathUnits" },
{ TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SSHORT, FIELD_CUSTOM,
0, 0, "YClipPathUnits" },
{ TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SBYTE, FIELD_CUSTOM,
0, 0, "YClipPathUnits" },
{ TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "YCbCrCoefficients" },
{ TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, FIELD_YCBCRSUBSAMPLING,
0, 0, "YCbCrSubsampling" },
{ TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, FIELD_YCBCRPOSITIONING,
0, 0, "YCbCrPositioning" },
{ TIFFTAG_REFERENCEBLACKWHITE, 6, 6, TIFF_RATIONAL, FIELD_REFBLACKWHITE,
1, 0, "ReferenceBlackWhite" },
/* XXX temporarily accept LONG for backwards compatibility */
{ TIFFTAG_REFERENCEBLACKWHITE, 6, 6, TIFF_LONG, FIELD_REFBLACKWHITE,
1, 0, "ReferenceBlackWhite" },
{ TIFFTAG_XMLPACKET, -3,-3, TIFF_BYTE, FIELD_CUSTOM,
0, 1, "XMLPacket" },
/* begin SGI tags */
{ TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, FIELD_EXTRASAMPLES,
0, 0, "Matteing" },
{ TIFFTAG_DATATYPE, -2,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
0, 0, "DataType" },
{ TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, FIELD_IMAGEDEPTH,
0, 0, "ImageDepth" },
{ TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDEPTH,
0, 0, "ImageDepth" },
{ TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, FIELD_TILEDEPTH,
0, 0, "TileDepth" },
{ TIFFTAG_TILEDEPTH, 1, 1, TIFF_SHORT, FIELD_TILEDEPTH,
0, 0, "TileDepth" },
/* end SGI tags */
/* begin Pixar tags */
{ TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, FIELD_CUSTOM,
1, 0, "ImageFullWidth" },
{ TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, FIELD_CUSTOM,
1, 0, "ImageFullLength" },
{ TIFFTAG_PIXAR_TEXTUREFORMAT, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "TextureFormat" },
{ TIFFTAG_PIXAR_WRAPMODES, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "TextureWrapModes" },
{ TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, FIELD_CUSTOM,
1, 0, "FieldOfViewCotangent" },
{ TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16,16, TIFF_FLOAT,
FIELD_CUSTOM, 1, 0, "MatrixWorldToScreen" },
{ TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16,16, TIFF_FLOAT,
FIELD_CUSTOM, 1, 0, "MatrixWorldToCamera" },
{ TIFFTAG_COPYRIGHT, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "Copyright" },
/* end Pixar tags */
{ TIFFTAG_RICHTIFFIPTC, -3, -3, TIFF_LONG, FIELD_CUSTOM,
0, 1, "RichTIFFIPTC" },
{ TIFFTAG_PHOTOSHOP, -3, -3, TIFF_BYTE, FIELD_CUSTOM,
0, 1, "Photoshop" },
{ TIFFTAG_EXIFIFD, 1, 1, TIFF_LONG, FIELD_CUSTOM,
0, 0, "EXIFIFDOffset" },
{ TIFFTAG_ICCPROFILE, -3, -3, TIFF_UNDEFINED, FIELD_CUSTOM,
0, 1, "ICC Profile" },
{ TIFFTAG_GPSIFD, 1, 1, TIFF_LONG, FIELD_CUSTOM,
0, 0, "GPSIFDOffset" },
{ TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, FIELD_CUSTOM,
0, 0, "StoNits" },
{ TIFFTAG_INTEROPERABILITYIFD, 1, 1, TIFF_LONG, FIELD_CUSTOM,
0, 0, "InteroperabilityIFDOffset" },
/* begin DNG tags */
{ TIFFTAG_DNGVERSION, 4, 4, TIFF_BYTE, FIELD_CUSTOM,
0, 0, "DNGVersion" },
{ TIFFTAG_DNGBACKWARDVERSION, 4, 4, TIFF_BYTE, FIELD_CUSTOM,
0, 0, "DNGBackwardVersion" },
{ TIFFTAG_UNIQUECAMERAMODEL, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "UniqueCameraModel" },
{ TIFFTAG_LOCALIZEDCAMERAMODEL, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "LocalizedCameraModel" },
{ TIFFTAG_LOCALIZEDCAMERAMODEL, -1, -1, TIFF_BYTE, FIELD_CUSTOM,
1, 1, "LocalizedCameraModel" },
{ TIFFTAG_CFAPLANECOLOR, -1, -1, TIFF_BYTE, FIELD_CUSTOM,
0, 1, "CFAPlaneColor" },
{ TIFFTAG_CFALAYOUT, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "CFALayout" },
{ TIFFTAG_LINEARIZATIONTABLE, -1, -1, TIFF_SHORT, FIELD_CUSTOM,
0, 1, "LinearizationTable" },
{ TIFFTAG_BLACKLEVELREPEATDIM, 2, 2, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "BlackLevelRepeatDim" },
{ TIFFTAG_BLACKLEVEL, -1, -1, TIFF_LONG, FIELD_CUSTOM,
0, 1, "BlackLevel" },
{ TIFFTAG_BLACKLEVEL, -1, -1, TIFF_SHORT, FIELD_CUSTOM,
0, 1, "BlackLevel" },
{ TIFFTAG_BLACKLEVEL, -1, -1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 1, "BlackLevel" },
{ TIFFTAG_BLACKLEVELDELTAH, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "BlackLevelDeltaH" },
{ TIFFTAG_BLACKLEVELDELTAV, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "BlackLevelDeltaV" },
{ TIFFTAG_WHITELEVEL, -2, -2, TIFF_LONG, FIELD_CUSTOM,
0, 0, "WhiteLevel" },
{ TIFFTAG_WHITELEVEL, -2, -2, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "WhiteLevel" },
{ TIFFTAG_DEFAULTSCALE, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "DefaultScale" },
{ TIFFTAG_BESTQUALITYSCALE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "BestQualityScale" },
{ TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_LONG, FIELD_CUSTOM,
0, 0, "DefaultCropOrigin" },
{ TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "DefaultCropOrigin" },
{ TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "DefaultCropOrigin" },
{ TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_LONG, FIELD_CUSTOM,
0, 0, "DefaultCropSize" },
{ TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "DefaultCropSize" },
{ TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "DefaultCropSize" },
{ TIFFTAG_COLORMATRIX1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "ColorMatrix1" },
{ TIFFTAG_COLORMATRIX2, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "ColorMatrix2" },
{ TIFFTAG_CAMERACALIBRATION1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "CameraCalibration1" },
{ TIFFTAG_CAMERACALIBRATION2, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "CameraCalibration2" },
{ TIFFTAG_REDUCTIONMATRIX1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "ReductionMatrix1" },
{ TIFFTAG_REDUCTIONMATRIX2, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "ReductionMatrix2" },
{ TIFFTAG_ANALOGBALANCE, -1, -1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 1, "AnalogBalance" },
{ TIFFTAG_ASSHOTNEUTRAL, -1, -1, TIFF_SHORT, FIELD_CUSTOM,
0, 1, "AsShotNeutral" },
{ TIFFTAG_ASSHOTNEUTRAL, -1, -1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 1, "AsShotNeutral" },
{ TIFFTAG_ASSHOTWHITEXY, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "AsShotWhiteXY" },
{ TIFFTAG_BASELINEEXPOSURE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 0, "BaselineExposure" },
{ TIFFTAG_BASELINENOISE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "BaselineNoise" },
{ TIFFTAG_BASELINESHARPNESS, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "BaselineSharpness" },
{ TIFFTAG_BAYERGREENSPLIT, 1, 1, TIFF_LONG, FIELD_CUSTOM,
0, 0, "BayerGreenSplit" },
{ TIFFTAG_LINEARRESPONSELIMIT, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "LinearResponseLimit" },
{ TIFFTAG_CAMERASERIALNUMBER, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "CameraSerialNumber" },
{ TIFFTAG_LENSINFO, 4, 4, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "LensInfo" },
{ TIFFTAG_CHROMABLURRADIUS, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "ChromaBlurRadius" },
{ TIFFTAG_ANTIALIASSTRENGTH, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "AntiAliasStrength" },
{ TIFFTAG_SHADOWSCALE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
0, 0, "ShadowScale" },
{ TIFFTAG_DNGPRIVATEDATA, -1, -1, TIFF_BYTE, FIELD_CUSTOM,
0, 1, "DNGPrivateData" },
{ TIFFTAG_MAKERNOTESAFETY, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "MakerNoteSafety" },
{ TIFFTAG_CALIBRATIONILLUMINANT1, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "CalibrationIlluminant1" },
{ TIFFTAG_CALIBRATIONILLUMINANT2, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "CalibrationIlluminant2" },
{ TIFFTAG_RAWDATAUNIQUEID, 16, 16, TIFF_BYTE, FIELD_CUSTOM,
0, 0, "RawDataUniqueID" },
{ TIFFTAG_ORIGINALRAWFILENAME, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "OriginalRawFileName" },
{ TIFFTAG_ORIGINALRAWFILENAME, -1, -1, TIFF_BYTE, FIELD_CUSTOM,
1, 1, "OriginalRawFileName" },
{ TIFFTAG_ORIGINALRAWFILEDATA, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
0, 1, "OriginalRawFileData" },
{ TIFFTAG_ACTIVEAREA, 4, 4, TIFF_LONG, FIELD_CUSTOM,
0, 0, "ActiveArea" },
{ TIFFTAG_ACTIVEAREA, 4, 4, TIFF_SHORT, FIELD_CUSTOM,
0, 0, "ActiveArea" },
{ TIFFTAG_MASKEDAREAS, -1, -1, TIFF_LONG, FIELD_CUSTOM,
0, 1, "MaskedAreas" },
{ TIFFTAG_ASSHOTICCPROFILE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
0, 1, "AsShotICCProfile" },
{ TIFFTAG_ASSHOTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "AsShotPreProfileMatrix" },
{ TIFFTAG_CURRENTICCPROFILE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
0, 1, "CurrentICCProfile" },
{ TIFFTAG_CURRENTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM,
0, 1, "CurrentPreProfileMatrix" },
/* end DNG tags */
};
static const TIFFFieldInfo
exifFieldInfo[] = {
{ EXIFTAG_EXPOSURETIME, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "ExposureTime" },
{ EXIFTAG_FNUMBER, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "FNumber" },
{ EXIFTAG_EXPOSUREPROGRAM, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "ExposureProgram" },
{ EXIFTAG_SPECTRALSENSITIVITY, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "SpectralSensitivity" },
{ EXIFTAG_ISOSPEEDRATINGS, -1, -1, TIFF_SHORT, FIELD_CUSTOM,
1, 1, "ISOSpeedRatings" },
{ EXIFTAG_OECF, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 1, "OptoelectricConversionFactor" },
{ EXIFTAG_EXIFVERSION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 0, "ExifVersion" },
{ EXIFTAG_DATETIMEORIGINAL, 20, 20, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "DateTimeOriginal" },
{ EXIFTAG_DATETIMEDIGITIZED, 20, 20, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "DateTimeDigitized" },
{ EXIFTAG_COMPONENTSCONFIGURATION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 0, "ComponentsConfiguration" },
{ EXIFTAG_COMPRESSEDBITSPERPIXEL, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "CompressedBitsPerPixel" },
{ EXIFTAG_SHUTTERSPEEDVALUE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM,
1, 0, "ShutterSpeedValue" },
{ EXIFTAG_APERTUREVALUE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "ApertureValue" },
{ EXIFTAG_BRIGHTNESSVALUE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM,
1, 0, "BrightnessValue" },
{ EXIFTAG_EXPOSUREBIASVALUE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM,
1, 0, "ExposureBiasValue" },
{ EXIFTAG_MAXAPERTUREVALUE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "MaxApertureValue" },
{ EXIFTAG_SUBJECTDISTANCE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "SubjectDistance" },
{ EXIFTAG_METERINGMODE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "MeteringMode" },
{ EXIFTAG_LIGHTSOURCE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "LightSource" },
{ EXIFTAG_FLASH, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "Flash" },
{ EXIFTAG_FOCALLENGTH, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "FocalLength" },
{ EXIFTAG_SUBJECTAREA, -1, -1, TIFF_SHORT, FIELD_CUSTOM,
1, 1, "SubjectArea" },
{ EXIFTAG_MAKERNOTE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 1, "MakerNote" },
{ EXIFTAG_USERCOMMENT, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 1, "UserComment" },
{ EXIFTAG_SUBSECTIME, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "SubSecTime" },
{ EXIFTAG_SUBSECTIMEORIGINAL, -1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "SubSecTimeOriginal" },
{ EXIFTAG_SUBSECTIMEDIGITIZED,-1, -1, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "SubSecTimeDigitized" },
{ EXIFTAG_FLASHPIXVERSION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 0, "FlashpixVersion" },
{ EXIFTAG_COLORSPACE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "ColorSpace" },
{ EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_LONG, FIELD_CUSTOM,
1, 0, "PixelXDimension" },
{ EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "PixelXDimension" },
{ EXIFTAG_PIXELYDIMENSION, 1, 1, TIFF_LONG, FIELD_CUSTOM,
1, 0, "PixelYDimension" },
{ EXIFTAG_PIXELYDIMENSION, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "PixelYDimension" },
{ EXIFTAG_RELATEDSOUNDFILE, 13, 13, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "RelatedSoundFile" },
{ EXIFTAG_FLASHENERGY, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "FlashEnergy" },
{ EXIFTAG_SPATIALFREQUENCYRESPONSE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 1, "SpatialFrequencyResponse" },
{ EXIFTAG_FOCALPLANEXRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "FocalPlaneXResolution" },
{ EXIFTAG_FOCALPLANEYRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "FocalPlaneYResolution" },
{ EXIFTAG_FOCALPLANERESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "FocalPlaneResolutionUnit" },
{ EXIFTAG_SUBJECTLOCATION, 2, 2, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "SubjectLocation" },
{ EXIFTAG_EXPOSUREINDEX, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "ExposureIndex" },
{ EXIFTAG_SENSINGMETHOD, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "SensingMethod" },
{ EXIFTAG_FILESOURCE, 1, 1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 0, "FileSource" },
{ EXIFTAG_SCENETYPE, 1, 1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 0, "SceneType" },
{ EXIFTAG_CFAPATTERN, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 1, "CFAPattern" },
{ EXIFTAG_CUSTOMRENDERED, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "CustomRendered" },
{ EXIFTAG_EXPOSUREMODE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "ExposureMode" },
{ EXIFTAG_WHITEBALANCE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "WhiteBalance" },
{ EXIFTAG_DIGITALZOOMRATIO, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "DigitalZoomRatio" },
{ EXIFTAG_FOCALLENGTHIN35MMFILM, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "FocalLengthIn35mmFilm" },
{ EXIFTAG_SCENECAPTURETYPE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "SceneCaptureType" },
{ EXIFTAG_GAINCONTROL, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM,
1, 0, "GainControl" },
{ EXIFTAG_CONTRAST, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "Contrast" },
{ EXIFTAG_SATURATION, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "Saturation" },
{ EXIFTAG_SHARPNESS, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "Sharpness" },
{ EXIFTAG_DEVICESETTINGDESCRIPTION, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM,
1, 1, "DeviceSettingDescription" },
{ EXIFTAG_SUBJECTDISTANCERANGE, 1, 1, TIFF_SHORT, FIELD_CUSTOM,
1, 0, "SubjectDistanceRange" },
{ EXIFTAG_IMAGEUNIQUEID, 33, 33, TIFF_ASCII, FIELD_CUSTOM,
1, 0, "ImageUniqueID" }
};
const TIFFFieldInfo *
_TIFFGetFieldInfo(size_t *size)
{
*size = TIFFArrayCount(tiffFieldInfo);
return tiffFieldInfo;
}
const TIFFFieldInfo *
_TIFFGetExifFieldInfo(size_t *size)
{
*size = TIFFArrayCount(exifFieldInfo);
return exifFieldInfo;
}
void
_TIFFSetupFieldInfo(TIFF* tif, const TIFFFieldInfo info[], size_t n)
{
if (tif->tif_fieldinfo) {
size_t i;
for (i = 0; i < tif->tif_nfields; i++)
{
TIFFFieldInfo *fld = tif->tif_fieldinfo[i];
if (fld->field_bit == FIELD_CUSTOM &&
strncmp("Tag ", fld->field_name, 4) == 0) {
_TIFFfree(fld->field_name);
_TIFFfree(fld);
}
}
_TIFFfree(tif->tif_fieldinfo);
tif->tif_nfields = 0;
}
if (!_TIFFMergeFieldInfo(tif, info, n))
{
TIFFErrorExt(tif->tif_clientdata, "_TIFFSetupFieldInfo",
"Setting up field info failed");
}
}
static int
tagCompare(const void* a, const void* b)
{
const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
/* NB: be careful of return values for 16-bit platforms */
if (ta->field_tag != tb->field_tag)
return (int)ta->field_tag - (int)tb->field_tag;
else
return (ta->field_type == TIFF_ANY) ?
0 : ((int)tb->field_type - (int)ta->field_type);
}
static int
tagNameCompare(const void* a, const void* b)
{
const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a;
const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b;
int ret = strcmp(ta->field_name, tb->field_name);
if (ret)
return ret;
else
return (ta->field_type == TIFF_ANY) ?
0 : ((int)tb->field_type - (int)ta->field_type);
}
void
TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n)
{
if (_TIFFMergeFieldInfo(tif, info, n) < 0)
{
TIFFErrorExt(tif->tif_clientdata, "TIFFMergeFieldInfo",
"Merging block of %d fields failed", n);
}
}
int
_TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n)
{
static const char module[] = "_TIFFMergeFieldInfo";
static const char reason[] = "for field info array";
TIFFFieldInfo** tp;
int i;
tif->tif_foundfield = NULL;
if (tif->tif_nfields > 0) {
tif->tif_fieldinfo = (TIFFFieldInfo**)
_TIFFCheckRealloc(tif, tif->tif_fieldinfo,
(tif->tif_nfields + n),
sizeof (TIFFFieldInfo*), reason);
} else {
tif->tif_fieldinfo = (TIFFFieldInfo**)
_TIFFCheckMalloc(tif, n, sizeof (TIFFFieldInfo*),
reason);
}
if (!tif->tif_fieldinfo) {
TIFFErrorExt(tif->tif_clientdata, module,
"Failed to allocate field info array");
return 0;
}
tp = tif->tif_fieldinfo + tif->tif_nfields;
for (i = 0; i < n; i++)
{
const TIFFFieldInfo *fip =
_TIFFFindFieldInfo(tif, info[i].field_tag, info[i].field_type);
/* only add definitions that aren't already present */
if (!fip) {
*tp++ = (TIFFFieldInfo*) (info + i);
tif->tif_nfields++;
}
}
/* Sort the field info by tag number */
qsort(tif->tif_fieldinfo, tif->tif_nfields,
sizeof (TIFFFieldInfo*), tagCompare);
return n;
}
void
_TIFFPrintFieldInfo(TIFF* tif, FILE* fd)
{
size_t i;
fprintf(fd, "%s: \n", tif->tif_name);
for (i = 0; i < tif->tif_nfields; i++) {
const TIFFFieldInfo* fip = tif->tif_fieldinfo[i];
fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n"
, (int)i
, (unsigned long) fip->field_tag
, fip->field_readcount, fip->field_writecount
, fip->field_type
, fip->field_bit
, fip->field_oktochange ? "TRUE" : "FALSE"
, fip->field_passcount ? "TRUE" : "FALSE"
, fip->field_name
);
}
}
/*
* Return size of TIFFDataType in bytes
*/
int
TIFFDataWidth(TIFFDataType type)
{
switch(type)
{
case 0: /* nothing */
case 1: /* TIFF_BYTE */
case 2: /* TIFF_ASCII */
case 6: /* TIFF_SBYTE */
case 7: /* TIFF_UNDEFINED */
return 1;
case 3: /* TIFF_SHORT */
case 8: /* TIFF_SSHORT */
return 2;
case 4: /* TIFF_LONG */
case 9: /* TIFF_SLONG */
case 11: /* TIFF_FLOAT */
case 13: /* TIFF_IFD */
return 4;
case 5: /* TIFF_RATIONAL */
case 10: /* TIFF_SRATIONAL */
case 12: /* TIFF_DOUBLE */
return 8;
default:
return 0; /* will return 0 for unknown types */
}
}
/*
* Return size of TIFFDataType in bytes.
*
* XXX: We need a separate function to determine the space needed
* to store the value. For TIFF_RATIONAL values TIFFDataWidth() returns 8,
* but we use 4-byte float to represent rationals.
*/
int
_TIFFDataSize(TIFFDataType type)
{
switch (type) {
case TIFF_BYTE:
case TIFF_SBYTE:
case TIFF_ASCII:
case TIFF_UNDEFINED:
return 1;
case TIFF_SHORT:
case TIFF_SSHORT:
return 2;
case TIFF_LONG:
case TIFF_SLONG:
case TIFF_FLOAT:
case TIFF_IFD:
case TIFF_RATIONAL:
case TIFF_SRATIONAL:
return 4;
case TIFF_DOUBLE:
return 8;
default:
return 0;
}
}
/*
* Return nearest TIFFDataType to the sample type of an image.
*/
TIFFDataType
_TIFFSampleToTagType(TIFF* tif)
{
uint32 bps = TIFFhowmany8(tif->tif_dir.td_bitspersample);
switch (tif->tif_dir.td_sampleformat) {
case SAMPLEFORMAT_IEEEFP:
return (bps == 4 ? TIFF_FLOAT : TIFF_DOUBLE);
case SAMPLEFORMAT_INT:
return (bps <= 1 ? TIFF_SBYTE :
bps <= 2 ? TIFF_SSHORT : TIFF_SLONG);
case SAMPLEFORMAT_UINT:
return (bps <= 1 ? TIFF_BYTE :
bps <= 2 ? TIFF_SHORT : TIFF_LONG);
case SAMPLEFORMAT_VOID:
return (TIFF_UNDEFINED);
}
/*NOTREACHED*/
return (TIFF_UNDEFINED);
}
const TIFFFieldInfo*
_TIFFFindFieldInfo(TIFF* tif, ttag_t tag, TIFFDataType dt)
{
TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0};
TIFFFieldInfo* pkey = &key;
const TIFFFieldInfo **ret;
if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag &&
(dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
return tif->tif_foundfield;
/* If we are invoked with no field information, then just return. */
if ( !tif->tif_fieldinfo ) {
return NULL;
}
/* NB: use sorted search (e.g. binary search) */
key.field_tag = tag;
key.field_type = dt;
ret = (const TIFFFieldInfo **) bsearch(&pkey,
tif->tif_fieldinfo,
tif->tif_nfields,
sizeof(TIFFFieldInfo *),
tagCompare);
return tif->tif_foundfield = (ret ? *ret : NULL);
}
#undef lfind
static void *
lfind(const void *key, const void *base, size_t *nmemb, size_t size,
int(*compar)(const void *, const void *))
{
char *element, *end;
end = (char *)base + *nmemb * size;
for (element = (char *)base; element < end; element += size)
if (!compar(element, key)) /* key found */
return element;
return NULL;
}
const TIFFFieldInfo*
_TIFFFindFieldInfoByName(TIFF* tif, const char *field_name, TIFFDataType dt)
{
TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0};
TIFFFieldInfo* pkey = &key;
const TIFFFieldInfo **ret;
if (tif->tif_foundfield
&& streq(tif->tif_foundfield->field_name, field_name)
&& (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type))
return (tif->tif_foundfield);
/* If we are invoked with no field information, then just return. */
if ( !tif->tif_fieldinfo ) {
return NULL;
}
/* NB: use sorted search (e.g. binary search) */
key.field_name = (char *)field_name;
key.field_type = dt;
ret = (const TIFFFieldInfo **) lfind(&pkey,
tif->tif_fieldinfo,
&tif->tif_nfields,
sizeof(TIFFFieldInfo *),
tagNameCompare);
return tif->tif_foundfield = (ret ? *ret : NULL);
}
const TIFFFieldInfo*
_TIFFFieldWithTag(TIFF* tif, ttag_t tag)
{
const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY);
if (!fip) {
TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithTag",
"Internal error, unknown tag 0x%x",
(unsigned int) tag);
assert(fip != NULL);
/*NOTREACHED*/
}
return (fip);
}
const TIFFFieldInfo*
_TIFFFieldWithName(TIFF* tif, const char *field_name)
{
const TIFFFieldInfo* fip =
_TIFFFindFieldInfoByName(tif, field_name, TIFF_ANY);
if (!fip) {
TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithName",
"Internal error, unknown tag %s", field_name);
assert(fip != NULL);
/*NOTREACHED*/
}
return (fip);
}
const TIFFFieldInfo*
_TIFFFindOrRegisterFieldInfo( TIFF *tif, ttag_t tag, TIFFDataType dt )
{
const TIFFFieldInfo *fld;
fld = _TIFFFindFieldInfo( tif, tag, dt );
if( fld == NULL )
{
fld = _TIFFCreateAnonFieldInfo( tif, tag, dt );
if (!_TIFFMergeFieldInfo(tif, fld, 1))
return NULL;
}
return fld;
}
TIFFFieldInfo*
_TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type)
{
TIFFFieldInfo *fld;
(void) tif;
fld = (TIFFFieldInfo *) _TIFFmalloc(sizeof (TIFFFieldInfo));
if (fld == NULL)
return NULL;
_TIFFmemset( fld, 0, sizeof(TIFFFieldInfo) );
fld->field_tag = tag;
fld->field_readcount = TIFF_VARIABLE2;
fld->field_writecount = TIFF_VARIABLE2;
fld->field_type = field_type;
fld->field_bit = FIELD_CUSTOM;
fld->field_oktochange = TRUE;
fld->field_passcount = TRUE;
fld->field_name = (char *) _TIFFmalloc(32);
if (fld->field_name == NULL) {
_TIFFfree(fld);
return NULL;
}
/*
* note that this name is a special sign to TIFFClose() and
* _TIFFSetupFieldInfo() to free the field
*/
sprintf(fld->field_name, "Tag %d", (int) tag);
return fld;
}
/* vim: set ts=8 sts=8 sw=8 noet: */
/*
* Local Variables:
* mode: c
* c-basic-offset: 8
* fill-column: 78
* End:
*/