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tif_dirinfo.c
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1995-06-21
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/* $Header: /usr/people/sam/tiff/libtiff/RCS/tif_dirinfo.c,v 1.29 1994/09/17 23:41:33 sam Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994 Sam Leffler
* Copyright (c) 1991, 1992, 1993, 1994 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.
*
* Known Directory Tag Support.
*/
#include "tiffiop.h"
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
/*
* NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG.
* Also, if a tag can have both LONG and SHORT types
* then the LONG must be placed before the SHORT for
* writing to work properly.
*/
const TIFFFieldInfo tiffFieldInfo[] = {
{ TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, FIELD_SUBFILETYPE,
TRUE, FALSE, "SubfileType" },
/* XXX SHORT for compatibility w/ old versions of the library */
{ TIFFTAG_SUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
TRUE, FALSE, "SubfileType" },
{ TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE,
TRUE, FALSE, "OldSubfileType" },
{ TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
FALSE, FALSE, "ImageWidth" },
{ TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
FALSE, FALSE, "ImageWidth" },
{ TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS,
TRUE, FALSE, "ImageLength" },
{ TIFFTAG_IMAGELENGTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS,
TRUE, FALSE, "ImageLength" },
{ TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_SHORT, FIELD_BITSPERSAMPLE,
FALSE, FALSE, "BitsPerSample" },
{ TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION,
FALSE, FALSE, "Compression" },
{ TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC,
FALSE, FALSE, "PhotometricInterpretation" },
{ TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, FIELD_THRESHHOLDING,
TRUE, FALSE, "Threshholding" },
{ TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
TRUE, FALSE, "CellWidth" },
{ TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, FIELD_IGNORE,
TRUE, FALSE, "CellLength" },
{ TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, FIELD_FILLORDER,
FALSE, FALSE, "FillOrder" },
{ TIFFTAG_DOCUMENTNAME, -1,-1, TIFF_ASCII, FIELD_DOCUMENTNAME,
TRUE, FALSE, "DocumentName" },
{ TIFFTAG_IMAGEDESCRIPTION, -1,-1, TIFF_ASCII, FIELD_IMAGEDESCRIPTION,
TRUE, FALSE, "ImageDescription" },
{ TIFFTAG_MAKE, -1,-1, TIFF_ASCII, FIELD_MAKE,
TRUE, FALSE, "Make" },
{ TIFFTAG_MODEL, -1,-1, TIFF_ASCII, FIELD_MODEL,
TRUE, FALSE, "Model" },
{ TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_LONG, FIELD_STRIPOFFSETS,
FALSE, FALSE, "StripOffsets" },
{ TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_SHORT, FIELD_STRIPOFFSETS,
FALSE, FALSE, "StripOffsets" },
{ TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, FIELD_ORIENTATION,
FALSE, FALSE, "Orientation" },
{ TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, FIELD_SAMPLESPERPIXEL,
FALSE, FALSE, "SamplesPerPixel" },
{ TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, FIELD_ROWSPERSTRIP,
FALSE, FALSE, "RowsPerStrip" },
{ TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_SHORT, FIELD_ROWSPERSTRIP,
FALSE, FALSE, "RowsPerStrip" },
{ TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
FALSE, FALSE, "StripByteCounts" },
{ TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
FALSE, FALSE, "StripByteCounts" },
{ TIFFTAG_MINSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MINSAMPLEVALUE,
TRUE, FALSE, "MinSampleValue" },
{ TIFFTAG_MAXSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MAXSAMPLEVALUE,
TRUE, FALSE, "MaxSampleValue" },
{ TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
FALSE, FALSE, "XResolution" },
{ TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION,
FALSE, FALSE, "YResolution" },
{ TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, FIELD_PLANARCONFIG,
FALSE, FALSE, "PlanarConfiguration" },
{ TIFFTAG_PAGENAME, -1,-1, TIFF_ASCII, FIELD_PAGENAME,
TRUE, FALSE, "PageName" },
{ TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
TRUE, FALSE, "XPosition" },
{ TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION,
TRUE, FALSE, "YPosition" },
{ TIFFTAG_FREEOFFSETS, -1,-1, TIFF_LONG, FIELD_IGNORE,
FALSE, FALSE, "FreeOffsets" },
{ TIFFTAG_FREEBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_IGNORE,
FALSE, FALSE, "FreeByteCounts" },
{ TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
TRUE, FALSE, "GrayResponseUnit" },
{ TIFFTAG_GRAYRESPONSECURVE,-1,-1, TIFF_SHORT, FIELD_IGNORE,
TRUE, FALSE, "GrayResponseCurve" },
{ TIFFTAG_GROUP3OPTIONS, 1, 1, TIFF_LONG, FIELD_GROUP3OPTIONS,
FALSE, FALSE, "Group3Options" },
{ TIFFTAG_GROUP4OPTIONS, 1, 1, TIFF_LONG, FIELD_GROUP4OPTIONS,
FALSE, FALSE, "Group4Options" },
{ TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_RESOLUTIONUNIT,
FALSE, FALSE, "ResolutionUnit" },
{ TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, FIELD_PAGENUMBER,
TRUE, FALSE, "PageNumber" },
{ TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE,
TRUE, FALSE, "ColorResponseUnit" },
#ifdef COLORIMETRY_SUPPORT
{ TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION,
TRUE, FALSE, "TransferFunction" },
#endif
{ TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_SOFTWARE,
TRUE, FALSE, "Software" },
{ TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_DATETIME,
TRUE, FALSE, "DateTime" },
{ TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_ARTIST,
TRUE, FALSE, "Artist" },
{ TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_HOSTCOMPUTER,
TRUE, FALSE, "HostComputer" },
{ TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, FIELD_PREDICTOR,
FALSE, FALSE, "Predictor" },
#ifdef COLORIMETRY_SUPPORT
{ TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL,FIELD_WHITEPOINT,
TRUE, FALSE, "WhitePoint" },
{ TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL,FIELD_PRIMARYCHROMAS,
TRUE, FALSE, "PrimaryChromaticities" },
#endif
{ TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP,
TRUE, FALSE, "ColorMap" },
{ TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS,
TRUE, FALSE, "HalftoneHints" },
{ TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
FALSE, FALSE, "TileWidth" },
{ TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
FALSE, FALSE, "TileWidth" },
{ TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS,
FALSE, FALSE, "TileLength" },
{ TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS,
FALSE, FALSE, "TileLength" },
{ TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS,
FALSE, FALSE, "TileOffsets" },
{ TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS,
FALSE, FALSE, "TileByteCounts" },
{ TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS,
FALSE, FALSE, "TileByteCounts" },
{ TIFFTAG_BADFAXLINES, 1, 1, TIFF_LONG, FIELD_BADFAXLINES,
TRUE, FALSE, "BadFaxLines" },
{ TIFFTAG_BADFAXLINES, 1, 1, TIFF_SHORT, FIELD_BADFAXLINES,
TRUE, FALSE, "BadFaxLines" },
{ TIFFTAG_CLEANFAXDATA, 1, 1, TIFF_SHORT, FIELD_CLEANFAXDATA,
TRUE, FALSE, "CleanFaxData" },
{ TIFFTAG_CONSECUTIVEBADFAXLINES,1,1, TIFF_LONG,FIELD_BADFAXRUN,
TRUE, FALSE, "ConsecutiveBadFaxLines" },
{ TIFFTAG_CONSECUTIVEBADFAXLINES,1,1, TIFF_SHORT,FIELD_BADFAXRUN,
TRUE, FALSE, "ConsecutiveBadFaxLines" },
#ifdef TIFFTAG_SUBIFD
{ TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD,
TRUE, TRUE, "SubIFD" },
#endif
#ifdef CMYK_SUPPORT /* 6.0 CMYK tags */
{ TIFFTAG_INKSET, 1, 1, TIFF_SHORT, FIELD_INKSET,
FALSE, FALSE, "InkSet" },
{ TIFFTAG_INKNAMES, -1,-1, TIFF_ASCII, FIELD_INKNAMES,
TRUE, FALSE, "InkNames" },
{ TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, FIELD_DOTRANGE,
FALSE, FALSE, "DotRange" },
{ TIFFTAG_DOTRANGE, 2, 2, TIFF_BYTE, FIELD_DOTRANGE,
FALSE, FALSE, "DotRange" },
{ TIFFTAG_TARGETPRINTER, -1,-1, TIFF_ASCII, FIELD_TARGETPRINTER,
TRUE, FALSE, "TargetPrinter" },
#endif
{ TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES,
FALSE, FALSE, "ExtraSamples" },
/* XXX for bogus Adobe Photoshop v2.5 files */
{ TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES,
FALSE, FALSE, "ExtraSamples" },
{ TIFFTAG_SAMPLEFORMAT, -1,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
FALSE, FALSE, "SampleFormat" },
#ifdef notdef
{ TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE,
TRUE, FALSE, "SMinSampleValue" },
{ TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE,
TRUE, FALSE, "SMaxSampleValue" },
#endif
#ifdef JPEG_SUPPORT /* 6.0 JPEG tags */
{ TIFFTAG_JPEGPROC, 1, 1, TIFF_SHORT, FIELD_JPEGPROC,
FALSE, FALSE, "JPEGProc" },
{ TIFFTAG_JPEGIFOFFSET, 1, 1, TIFF_LONG, FIELD_IGNORE,
FALSE, FALSE, "JPEGInterchangeFormat" },
{ TIFFTAG_JPEGIFBYTECOUNT, 1, 1, TIFF_LONG, FIELD_IGNORE,
FALSE, FALSE, "JPEGInterchangeFormatLength" },
{ TIFFTAG_JPEGRESTARTINTERVAL,1,1, TIFF_SHORT,FIELD_JPEGRESTARTINTERVAL,
FALSE, FALSE, "JPEGRestartInterval" },
{ TIFFTAG_JPEGQTABLES, -2,-1, TIFF_LONG, FIELD_JPEGQTABLES,
FALSE, FALSE, "JPEGQTables" },
{ TIFFTAG_JPEGDCTABLES, -2,-1, TIFF_LONG, FIELD_JPEGDCTABLES,
FALSE, FALSE, "JPEGDCTables" },
{ TIFFTAG_JPEGACTABLES, -2,-1, TIFF_LONG, FIELD_JPEGACTABLES,
FALSE, FALSE, "JPEGACTables" },
#endif
#ifdef YCBCR_SUPPORT /* 6.0 YCbCr tags */
{ TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, FIELD_YCBCRCOEFFICIENTS,
FALSE, FALSE, "YCbCrCoefficients" },
{ TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, FIELD_YCBCRSUBSAMPLING,
FALSE, FALSE, "YCbCrSubsampling" },
{ TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, FIELD_YCBCRPOSITIONING,
FALSE, FALSE, "YCbCrPositioning" },
#endif
#ifdef COLORIMETRY_SUPPORT
{ TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_RATIONAL, FIELD_REFBLACKWHITE,
FALSE, FALSE, "ReferenceBlackWhite" },
/* XXX temporarily accept LONG for backwards compatibility */
{ TIFFTAG_REFERENCEBLACKWHITE,6,6,TIFF_LONG, FIELD_REFBLACKWHITE,
FALSE, FALSE, "ReferenceBlackWhite" },
#endif
/* begin SGI tags */
{ TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, FIELD_EXTRASAMPLES,
FALSE, FALSE, "Matteing" },
{ TIFFTAG_DATATYPE, -2,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT,
FALSE, FALSE, "DataType" },
{ TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, FIELD_IMAGEDEPTH,
FALSE, FALSE, "ImageDepth" },
{ TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDEPTH,
FALSE, FALSE, "ImageDepth" },
{ TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, FIELD_TILEDEPTH,
FALSE, FALSE, "TileDepth" },
{ TIFFTAG_TILEDEPTH, 1, 1, TIFF_SHORT, FIELD_TILEDEPTH,
FALSE, FALSE, "TileDepth" },
/* end SGI tags */
{ 0 }
};
const int tiffDataWidth[] = {
1, /* nothing */
1, /* TIFF_BYTE */
1, /* TIFF_ASCII */
2, /* TIFF_SHORT */
4, /* TIFF_LONG */
8, /* TIFF_RATIONAL */
1, /* TIFF_SBYTE */
1, /* TIFF_UNDEFINED */
2, /* TIFF_SSHORT */
4, /* TIFF_SLONG */
8, /* TIFF_SRATIONAL */
4, /* TIFF_FLOAT */
8, /* TIFF_DOUBLE */
};
const TIFFFieldInfo *
TIFFFindFieldInfo(ttag_t tag, TIFFDataType dt)
{
static const TIFFFieldInfo *last = NULL;
register const TIFFFieldInfo *fip;
if (last && last->field_tag == tag &&
(dt == TIFF_ANY || dt == last->field_type))
return (last);
/* NB: if table gets big, use sorted search (e.g. binary search) */
for (fip = tiffFieldInfo; fip->field_tag; fip++)
if (fip->field_tag == tag &&
(dt == TIFF_ANY || fip->field_type == dt))
return (last = fip);
return ((const TIFFFieldInfo *)0);
}
#include <assert.h>
#include <stdio.h>
const TIFFFieldInfo *
TIFFFieldWithTag(ttag_t tag)
{
const TIFFFieldInfo *fip = TIFFFindFieldInfo(tag, TIFF_ANY);
if (!fip) {
TIFFError("TIFFFieldWithTag",
"Internal error, unknown tag 0x%x", (u_int) tag);
assert(fip != NULL);
/*NOTREACHED*/
}
return (fip);
}