diff options
Diffstat (limited to 'plugins/FreeImage/Source/LibTIFF/tif_dirinfo.c')
| -rw-r--r-- | plugins/FreeImage/Source/LibTIFF/tif_dirinfo.c | 884 |
1 files changed, 884 insertions, 0 deletions
diff --git a/plugins/FreeImage/Source/LibTIFF/tif_dirinfo.c b/plugins/FreeImage/Source/LibTIFF/tif_dirinfo.c new file mode 100644 index 0000000000..a2055f44a5 --- /dev/null +++ b/plugins/FreeImage/Source/LibTIFF/tif_dirinfo.c @@ -0,0 +1,884 @@ +/* $Id: tif_dirinfo.c,v 1.38 2011/04/10 17:14:09 drolon 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);
+}
+
+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);
+ }
+ 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);
+ }
+ 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:
+ */
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